diff options
Diffstat (limited to 'drivers')
767 files changed, 59633 insertions, 18447 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig index 59f33fa6af3e..9b399a1bae8b 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -78,6 +78,8 @@ source "drivers/hid/Kconfig" source "drivers/usb/Kconfig" +source "drivers/uwb/Kconfig" + source "drivers/mmc/Kconfig" source "drivers/memstick/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index f65deda72d61..81eb33d616ae 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -54,6 +54,7 @@ obj-$(CONFIG_ATA_OVER_ETH) += block/aoe/ obj-$(CONFIG_PARIDE) += block/paride/ obj-$(CONFIG_TC) += tc/ obj-$(CONFIG_USB) += usb/ +obj-$(CONFIG_UWB) += uwb/ obj-$(CONFIG_PCI) += usb/ obj-$(CONFIG_USB_GADGET) += usb/gadget/ obj-$(CONFIG_SERIO) += input/serio/ diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index c52fca833268..6807c2acd977 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -4,7 +4,6 @@ menuconfig ACPI bool "ACPI (Advanced Configuration and Power Interface) Support" - depends on !X86_NUMAQ depends on !X86_VISWS depends on !IA64_HP_SIM depends on IA64 || X86 @@ -338,6 +337,15 @@ config ACPI_EC the battery and thermal drivers. If you are compiling for a mobile system, say Y. +config ACPI_PCI_SLOT + tristate "PCI slot detection driver" + default n + help + This driver will attempt to discover all PCI slots in your system, + and creates entries in /sys/bus/pci/slots/. This feature can + help you correlate PCI bus addresses with the physical geography + of your slots. If you are unsure, say N. + config ACPI_POWER bool default y diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 40b0fcae4c78..579c29c0665f 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -48,6 +48,7 @@ obj-$(CONFIG_ACPI_DOCK) += dock.o obj-$(CONFIG_ACPI_BAY) += bay.o obj-$(CONFIG_ACPI_VIDEO) += video.o obj-y += pci_root.o pci_link.o pci_irq.o pci_bind.o +obj-$(CONFIG_ACPI_PCI_SLOT) += pci_slot.o obj-$(CONFIG_ACPI_POWER) += power.o obj-$(CONFIG_ACPI_PROCESSOR) += processor.o obj-$(CONFIG_ACPI_CONTAINER) += container.o diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index 6cf10cbc1eee..f1112362eaa9 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -257,22 +257,22 @@ static int acpi_fan_add(struct acpi_device *device) goto end; } - printk(KERN_INFO PREFIX - "%s is registered as cooling_device%d\n", - device->dev.bus_id, cdev->id); + dev_info(&device->dev, "registered as cooling_device%d\n", cdev->id); acpi_driver_data(device) = cdev; result = sysfs_create_link(&device->dev.kobj, &cdev->device.kobj, "thermal_cooling"); if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); + dev_err(&device->dev, "Failed to create sysfs link " + "'thermal_cooling'\n"); result = sysfs_create_link(&cdev->device.kobj, &device->dev.kobj, "device"); if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); + dev_err(&device->dev, "Failed to create sysfs link " + "'device'\n"); result = acpi_fan_add_fs(device); if (result) diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 2808dc60fd67..3c0443f5949a 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -146,8 +146,7 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle) acpi_status status; if (dev->archdata.acpi_handle) { - printk(KERN_WARNING PREFIX - "Drivers changed 'acpi_handle' for %s\n", dev->bus_id); + dev_warn(dev, "Drivers changed 'acpi_handle'\n"); return -EINVAL; } get_device(dev); @@ -193,8 +192,7 @@ static int acpi_unbind_one(struct device *dev) /* acpi_bind_one increase refcnt by one */ put_device(dev); } else { - printk(KERN_ERR PREFIX - "Oops, 'acpi_handle' corrupt for %s\n", dev->bus_id); + dev_err(dev, "Oops, 'acpi_handle' corrupt\n"); } return 0; } diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index 658e5f3abae0..0fb4d2ad4704 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -199,6 +199,7 @@ acpi_parse_processor_affinity(struct acpi_subtable_header * header, return 0; } +#ifdef CONFIG_HAVE_ARCH_PARSE_SRAT static int __init acpi_parse_memory_affinity(struct acpi_subtable_header * header, const unsigned long end) @@ -216,6 +217,7 @@ acpi_parse_memory_affinity(struct acpi_subtable_header * header, return 0; } +#endif static int __init acpi_parse_srat(struct acpi_table_header *table) { @@ -244,9 +246,11 @@ int __init acpi_numa_init(void) if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) { acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY, acpi_parse_processor_affinity, NR_CPUS); +#ifdef CONFIG_HAVE_ARCH_PARSE_SRAT acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY, acpi_parse_memory_affinity, NR_NODE_MEMBLKS); +#endif } /* SLIT: System Locality Information Table */ diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index 89022a74faee..e556f30c7c16 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -570,6 +570,11 @@ int acpi_pci_irq_enable(struct pci_dev *dev) (triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge", (polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq); +#ifdef CONFIG_X86 + mp_config_acpi_gsi(dev->bus->number, dev->devfn, dev->pin, irq, + triggering, polarity); +#endif + return 0; } diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c new file mode 100644 index 000000000000..b9ab030a52d5 --- /dev/null +++ b/drivers/acpi/pci_slot.c @@ -0,0 +1,368 @@ +/* + * pci_slot.c - ACPI PCI Slot Driver + * + * The code here is heavily leveraged from the acpiphp module. + * Thanks to Matthew Wilcox <matthew@wil.cx> for much guidance. + * Thanks to Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> for code + * review and fixes. + * + * Copyright (C) 2007 Alex Chiang <achiang@hp.com> + * Copyright (C) 2007 Hewlett-Packard Development Company, L.P. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/acpi.h> +#include <acpi/acpi_bus.h> +#include <acpi/acpi_drivers.h> + +static int debug; +static int check_sta_before_sun; + +#define DRIVER_VERSION "0.1" +#define DRIVER_AUTHOR "Alex Chiang <achiang@hp.com>" +#define DRIVER_DESC "ACPI PCI Slot Detection Driver" +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_PARM_DESC(debug, "Debugging mode enabled or not"); +module_param(debug, bool, 0644); + +#define _COMPONENT ACPI_PCI_COMPONENT +ACPI_MODULE_NAME("pci_slot"); + +#define MY_NAME "pci_slot" +#define err(format, arg...) printk(KERN_ERR "%s: " format , MY_NAME , ## arg) +#define info(format, arg...) printk(KERN_INFO "%s: " format , MY_NAME , ## arg) +#define dbg(format, arg...) \ + do { \ + if (debug) \ + printk(KERN_DEBUG "%s: " format, \ + MY_NAME , ## arg); \ + } while (0) + +#define SLOT_NAME_SIZE 20 /* Inspired by #define in acpiphp.h */ + +struct acpi_pci_slot { + acpi_handle root_handle; /* handle of the root bridge */ + struct pci_slot *pci_slot; /* corresponding pci_slot */ + struct list_head list; /* node in the list of slots */ +}; + +static int acpi_pci_slot_add(acpi_handle handle); +static void acpi_pci_slot_remove(acpi_handle handle); + +static LIST_HEAD(slot_list); +static DEFINE_MUTEX(slot_list_lock); +static struct acpi_pci_driver acpi_pci_slot_driver = { + .add = acpi_pci_slot_add, + .remove = acpi_pci_slot_remove, +}; + +static int +check_slot(acpi_handle handle, int *device, unsigned long *sun) +{ + int retval = 0; + unsigned long adr, sta; + acpi_status status; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + + acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); + dbg("Checking slot on path: %s\n", (char *)buffer.pointer); + + if (check_sta_before_sun) { + /* If SxFy doesn't have _STA, we just assume it's there */ + status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); + if (ACPI_SUCCESS(status) && !(sta & ACPI_STA_DEVICE_PRESENT)) { + retval = -1; + goto out; + } + } + + status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr); + if (ACPI_FAILURE(status)) { + dbg("_ADR returned %d on %s\n", status, (char *)buffer.pointer); + retval = -1; + goto out; + } + + *device = (adr >> 16) & 0xffff; + + /* No _SUN == not a slot == bail */ + status = acpi_evaluate_integer(handle, "_SUN", NULL, sun); + if (ACPI_FAILURE(status)) { + dbg("_SUN returned %d on %s\n", status, (char *)buffer.pointer); + retval = -1; + goto out; + } + +out: + kfree(buffer.pointer); + return retval; +} + +struct callback_args { + acpi_walk_callback user_function; /* only for walk_p2p_bridge */ + struct pci_bus *pci_bus; + acpi_handle root_handle; +}; + +/* + * register_slot + * + * Called once for each SxFy object in the namespace. Don't worry about + * calling pci_create_slot multiple times for the same pci_bus:device, + * since each subsequent call simply bumps the refcount on the pci_slot. + * + * The number of calls to pci_destroy_slot from unregister_slot is + * symmetrical. + */ +static acpi_status +register_slot(acpi_handle handle, u32 lvl, void *context, void **rv) +{ + int device; + unsigned long sun; + char name[SLOT_NAME_SIZE]; + struct acpi_pci_slot *slot; + struct pci_slot *pci_slot; + struct callback_args *parent_context = context; + struct pci_bus *pci_bus = parent_context->pci_bus; + + if (check_slot(handle, &device, &sun)) + return AE_OK; + + slot = kmalloc(sizeof(*slot), GFP_KERNEL); + if (!slot) { + err("%s: cannot allocate memory\n", __func__); + return AE_OK; + } + + snprintf(name, sizeof(name), "%u", (u32)sun); + pci_slot = pci_create_slot(pci_bus, device, name); + if (IS_ERR(pci_slot)) { + err("pci_create_slot returned %ld\n", PTR_ERR(pci_slot)); + kfree(slot); + } + + slot->root_handle = parent_context->root_handle; + slot->pci_slot = pci_slot; + INIT_LIST_HEAD(&slot->list); + mutex_lock(&slot_list_lock); + list_add(&slot->list, &slot_list); + mutex_unlock(&slot_list_lock); + + dbg("pci_slot: %p, pci_bus: %x, device: %d, name: %s\n", + pci_slot, pci_bus->number, device, name); + + return AE_OK; +} + +/* + * walk_p2p_bridge - discover and walk p2p bridges + * @handle: points to an acpi_pci_root + * @context: p2p_bridge_context pointer + * + * Note that when we call ourselves recursively, we pass a different + * value of pci_bus in the child_context. + */ +static acpi_status +walk_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv) +{ + int device, function; + unsigned long adr; + acpi_status status; + acpi_handle dummy_handle; + acpi_walk_callback user_function; + + struct pci_dev *dev; + struct pci_bus *pci_bus; + struct callback_args child_context; + struct callback_args *parent_context = context; + + pci_bus = parent_context->pci_bus; + user_function = parent_context->user_function; + + status = acpi_get_handle(handle, "_ADR", &dummy_handle); + if (ACPI_FAILURE(status)) + return AE_OK; + + status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr); + if (ACPI_FAILURE(status)) + return AE_OK; + + device = (adr >> 16) & 0xffff; + function = adr & 0xffff; + + dev = pci_get_slot(pci_bus, PCI_DEVFN(device, function)); + if (!dev || !dev->subordinate) + goto out; + + child_context.pci_bus = dev->subordinate; + child_context.user_function = user_function; + child_context.root_handle = parent_context->root_handle; + + dbg("p2p bridge walk, pci_bus = %x\n", dev->subordinate->number); + status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, + user_function, &child_context, NULL); + if (ACPI_FAILURE(status)) + goto out; + + status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, + walk_p2p_bridge, &child_context, NULL); +out: + pci_dev_put(dev); + return AE_OK; +} + +/* + * walk_root_bridge - generic root bridge walker + * @handle: points to an acpi_pci_root + * @user_function: user callback for slot objects + * + * Call user_function for all objects underneath this root bridge. + * Walk p2p bridges underneath us and call user_function on those too. + */ +static int +walk_root_bridge(acpi_handle handle, acpi_walk_callback user_function) +{ + int seg, bus; + unsigned long tmp; + acpi_status status; + acpi_handle dummy_handle; + struct pci_bus *pci_bus; + struct callback_args context; + + /* If the bridge doesn't have _STA, we assume it is always there */ + status = acpi_get_handle(handle, "_STA", &dummy_handle); + if (ACPI_SUCCESS(status)) { + status = acpi_evaluate_integer(handle, "_STA", NULL, &tmp); + if (ACPI_FAILURE(status)) { + info("%s: _STA evaluation failure\n", __func__); + return 0; + } + if ((tmp & ACPI_STA_DEVICE_FUNCTIONING) == 0) + /* don't register this object */ + return 0; + } + + status = acpi_evaluate_integer(handle, "_SEG", NULL, &tmp); + seg = ACPI_SUCCESS(status) ? tmp : 0; + + status = acpi_evaluate_integer(handle, "_BBN", NULL, &tmp); + bus = ACPI_SUCCESS(status) ? tmp : 0; + + pci_bus = pci_find_bus(seg, bus); + if (!pci_bus) + return 0; + + context.pci_bus = pci_bus; + context.user_function = user_function; + context.root_handle = handle; + + dbg("root bridge walk, pci_bus = %x\n", pci_bus->number); + status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, + user_function, &context, NULL); + if (ACPI_FAILURE(status)) + return status; + + status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, + walk_p2p_bridge, &context, NULL); + if (ACPI_FAILURE(status)) + err("%s: walk_p2p_bridge failure - %d\n", __func__, status); + + return status; +} + +/* + * acpi_pci_slot_add + * @handle: points to an acpi_pci_root + */ +static int +acpi_pci_slot_add(acpi_handle handle) +{ + acpi_status status; + + status = walk_root_bridge(handle, register_slot); + if (ACPI_FAILURE(status)) + err("%s: register_slot failure - %d\n", __func__, status); + + return status; +} + +/* + * acpi_pci_slot_remove + * @handle: points to an acpi_pci_root + */ +static void +acpi_pci_slot_remove(acpi_handle handle) +{ + struct acpi_pci_slot *slot, *tmp; + + mutex_lock(&slot_list_lock); + list_for_each_entry_safe(slot, tmp, &slot_list, list) { + if (slot->root_handle == handle) { + list_del(&slot->list); + pci_destroy_slot(slot->pci_slot); + kfree(slot); + } + } + mutex_unlock(&slot_list_lock); +} + +static int do_sta_before_sun(const struct dmi_system_id *d) +{ + info("%s detected: will evaluate _STA before calling _SUN\n", d->ident); + check_sta_before_sun = 1; + return 0; +} + +static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = { + /* + * Fujitsu Primequest machines will return 1023 to indicate an + * error if the _SUN method is evaluated on SxFy objects that + * are not present (as indicated by _STA), so for those machines, + * we want to check _STA before evaluating _SUN. + */ + { + .callback = do_sta_before_sun, + .ident = "Fujitsu PRIMEQUEST", + .matches = { + DMI_MATCH(DMI_BIOS_VENDOR, "FUJITSU LIMITED"), + DMI_MATCH(DMI_BIOS_VERSION, "PRIMEQUEST"), + }, + }, + {} +}; + +static int __init +acpi_pci_slot_init(void) +{ + dmi_check_system(acpi_pci_slot_dmi_table); + acpi_pci_register_driver(&acpi_pci_slot_driver); + return 0; +} + +static void __exit +acpi_pci_slot_exit(void) +{ + acpi_pci_unregister_driver(&acpi_pci_slot_driver); +} + +module_init(acpi_pci_slot_init); +module_exit(acpi_pci_slot_exit); diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 9dd0fa93b9e1..41909c0daeb8 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -266,6 +266,18 @@ static int acpi_processor_set_pdc(struct acpi_processor *pr) if (!pdc_in) return status; + if (idle_nomwait) { + /* + * If mwait is disabled for CPU C-states, the C2C3_FFH access + * mode will be disabled in the parameter of _PDC object. + */ + union acpi_object *obj; + u32 *buffer = NULL; + + obj = pdc_in->pointer; + buffer = (u32 *)(obj->buffer.pointer); + buffer[2] &= ~(ACPI_PDC_C_C2C3_FFH); + } status = acpi_evaluate_object(pr->handle, "_PDC", pdc_in, NULL); if (ACPI_FAILURE(status)) @@ -674,9 +686,8 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device) goto end; } - printk(KERN_INFO PREFIX - "%s is registered as cooling_device%d\n", - device->dev.bus_id, pr->cdev->id); + dev_info(&device->dev, "registered as cooling_device%d\n", + pr->cdev->id); result = sysfs_create_link(&device->dev.kobj, &pr->cdev->device.kobj, diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index bb06738860c4..28509fbba6f9 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -1013,7 +1013,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) * affected cpu in order to get one proper T-state. * The notifier event is THROTTLING_PRECHANGE. */ - for_each_cpu_mask(i, online_throttling_cpus) { + for_each_cpu_mask_nr(i, online_throttling_cpus) { t_state.cpu = i; acpi_processor_throttling_notifier(THROTTLING_PRECHANGE, &t_state); @@ -1034,7 +1034,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) * it is necessary to set T-state for every affected * cpus. */ - for_each_cpu_mask(i, online_throttling_cpus) { + for_each_cpu_mask_nr(i, online_throttling_cpus) { match_pr = processors[i]; /* * If the pointer is invalid, we will report the @@ -1068,7 +1068,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) * affected cpu to update the T-states. * The notifier event is THROTTLING_POSTCHANGE */ - for_each_cpu_mask(i, online_throttling_cpus) { + for_each_cpu_mask_nr(i, online_throttling_cpus) { t_state.cpu = i; acpi_processor_throttling_notifier(THROTTLING_POSTCHANGE, &t_state); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 6d85289f1c12..be8e985149ba 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -459,7 +459,7 @@ static int acpi_device_register(struct acpi_device *device, device->dev.release = &acpi_device_release; result = device_add(&device->dev); if(result) { - printk(KERN_ERR PREFIX "Error adding device %s", device->dev.bus_id); + dev_err(&device->dev, "Error adding device\n"); goto end; } diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index c3b0cd88d09f..4addf8ad50ae 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -24,10 +24,6 @@ u8 sleep_states[ACPI_S_STATE_COUNT]; -#ifdef CONFIG_PM_SLEEP -static u32 acpi_target_sleep_state = ACPI_STATE_S0; -#endif - static int acpi_sleep_prepare(u32 acpi_state) { #ifdef CONFIG_ACPI_SLEEP @@ -50,9 +46,96 @@ static int acpi_sleep_prepare(u32 acpi_state) return 0; } -#ifdef CONFIG_SUSPEND -static struct platform_suspend_ops acpi_suspend_ops; +#ifdef CONFIG_PM_SLEEP +static u32 acpi_target_sleep_state = ACPI_STATE_S0; + +/* + * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the + * user to request that behavior by using the 'acpi_old_suspend_ordering' + * kernel command line option that causes the following variable to be set. + */ +static bool old_suspend_ordering; + +void __init acpi_old_suspend_ordering(void) +{ + old_suspend_ordering = true; +} + +/** + * acpi_pm_disable_gpes - Disable the GPEs. + */ +static int acpi_pm_disable_gpes(void) +{ + acpi_hw_disable_all_gpes(); + return 0; +} + +/** + * __acpi_pm_prepare - Prepare the platform to enter the target state. + * + * If necessary, set the firmware waking vector and do arch-specific + * nastiness to get the wakeup code to the waking vector. + */ +static int __acpi_pm_prepare(void) +{ + int error = acpi_sleep_prepare(acpi_target_sleep_state); + + if (error) + acpi_target_sleep_state = ACPI_STATE_S0; + return error; +} + +/** + * acpi_pm_prepare - Prepare the platform to enter the target sleep + * state and disable the GPEs. + */ +static int acpi_pm_prepare(void) +{ + int error = __acpi_pm_prepare(); + + if (!error) + acpi_hw_disable_all_gpes(); + return error; +} + +/** + * acpi_pm_finish - Instruct the platform to leave a sleep state. + * + * This is called after we wake back up (or if entering the sleep state + * failed). + */ +static void acpi_pm_finish(void) +{ + u32 acpi_state = acpi_target_sleep_state; + + if (acpi_state == ACPI_STATE_S0) + return; + printk(KERN_INFO PREFIX "Waking up from system sleep state S%d\n", + acpi_state); + acpi_disable_wakeup_device(acpi_state); + acpi_leave_sleep_state(acpi_state); + + /* reset firmware waking vector */ + acpi_set_firmware_waking_vector((acpi_physical_address) 0); + + acpi_target_sleep_state = ACPI_STATE_S0; +} + +/** + * acpi_pm_end - Finish up suspend sequence. + */ +static void acpi_pm_end(void) +{ + /* + * This is necessary in case acpi_pm_finish() is not called during a + * failing transition to a sleep state. + */ + acpi_target_sleep_state = ACPI_STATE_S0; +} +#endif /* CONFIG_PM_SLEEP */ + +#ifdef CONFIG_SUSPEND extern void do_suspend_lowlevel(void); static u32 acpi_suspend_states[] = { @@ -62,13 +145,10 @@ static u32 acpi_suspend_states[] = { [PM_SUSPEND_MAX] = ACPI_STATE_S5 }; -static int init_8259A_after_S1; - /** * acpi_suspend_begin - Set the target system sleep state to the state * associated with given @pm_state, if supported. */ - static int acpi_suspend_begin(suspend_state_t pm_state) { u32 acpi_state = acpi_suspend_states[pm_state]; @@ -85,25 +165,6 @@ static int acpi_suspend_begin(suspend_state_t pm_state) } /** - * acpi_suspend_prepare - Do preliminary suspend work. - * - * If necessary, set the firmware waking vector and do arch-specific - * nastiness to get the wakeup code to the waking vector. - */ - -static int acpi_suspend_prepare(void) -{ - int error = acpi_sleep_prepare(acpi_target_sleep_state); - - if (error) { - acpi_target_sleep_state = ACPI_STATE_S0; - return error; - } - - return ACPI_SUCCESS(acpi_hw_disable_all_gpes()) ? 0 : -EFAULT; -} - -/** * acpi_suspend_enter - Actually enter a sleep state. * @pm_state: ignored * @@ -111,7 +172,6 @@ static int acpi_suspend_prepare(void) * assembly, which in turn call acpi_enter_sleep_state(). * It's unfortunate, but it works. Please fix if you're feeling frisky. */ - static int acpi_suspend_enter(suspend_state_t pm_state) { acpi_status status = AE_OK; @@ -168,46 +228,6 @@ static int acpi_suspend_enter(suspend_state_t pm_state) return ACPI_SUCCESS(status) ? 0 : -EFAULT; } -/** - * acpi_suspend_finish - Instruct the platform to leave a sleep state. - * - * This is called after we wake back up (or if entering the sleep state - * failed). - */ - -static void acpi_suspend_finish(void) -{ - u32 acpi_state = acpi_target_sleep_state; - - acpi_disable_wakeup_device(acpi_state); - acpi_leave_sleep_state(acpi_state); - - /* reset firmware waking vector */ - acpi_set_firmware_waking_vector((acpi_physical_address) 0); - - acpi_target_sleep_state = ACPI_STATE_S0; - -#ifdef CONFIG_X86 - if (init_8259A_after_S1) { - printk("Broken toshiba laptop -> kicking interrupts\n"); - init_8259A(0); - } -#endif -} - -/** - * acpi_suspend_end - Finish up suspend sequence. - */ - -static void acpi_suspend_end(void) -{ - /* - * This is necessary in case acpi_suspend_finish() is not called during a - * failing transition to a sleep state. - */ - acpi_target_sleep_state = ACPI_STATE_S0; -} - static int acpi_suspend_state_valid(suspend_state_t pm_state) { u32 acpi_state; @@ -227,30 +247,39 @@ static int acpi_suspend_state_valid(suspend_state_t pm_state) static struct platform_suspend_ops acpi_suspend_ops = { .valid = acpi_suspend_state_valid, .begin = acpi_suspend_begin, - .prepare = acpi_suspend_prepare, + .prepare = acpi_pm_prepare, .enter = acpi_suspend_enter, - .finish = acpi_suspend_finish, - .end = acpi_suspend_end, + .finish = acpi_pm_finish, + .end = acpi_pm_end, }; -/* - * Toshiba fails to preserve interrupts over S1, reinitialization - * of 8259 is needed after S1 resume. +/** + * acpi_suspend_begin_old - Set the target system sleep state to the + * state associated with given @pm_state, if supported, and + * execute the _PTS control method. This function is used if the + * pre-ACPI 2.0 suspend ordering has been requested. */ -static int __init init_ints_after_s1(const struct dmi_system_id *d) +static int acpi_suspend_begin_old(suspend_state_t pm_state) { - printk(KERN_WARNING "%s with broken S1 detected.\n", d->ident); - init_8259A_after_S1 = 1; - return 0; + int error = acpi_suspend_begin(pm_state); + + if (!error) + error = __acpi_pm_prepare(); + return error; } -static struct dmi_system_id __initdata acpisleep_dmi_table[] = { - { - .callback = init_ints_after_s1, - .ident = "Toshiba Satellite 4030cdt", - .matches = {DMI_MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),}, - }, - {}, +/* + * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has + * been requested. + */ +static struct platform_suspend_ops acpi_suspend_ops_old = { + .valid = acpi_suspend_state_valid, + .begin = acpi_suspend_begin_old, + .prepare = acpi_pm_disable_gpes, + .enter = acpi_suspend_enter, + .finish = acpi_pm_finish, + .end = acpi_pm_end, + .recover = acpi_pm_finish, }; #endif /* CONFIG_SUSPEND */ @@ -258,22 +287,9 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { static int acpi_hibernation_begin(void) { acpi_target_sleep_state = ACPI_STATE_S4; - return 0; } -static int acpi_hibernation_prepare(void) -{ - int error = acpi_sleep_prepare(ACPI_STATE_S4); - - if (error) { - acpi_target_sleep_state = ACPI_STATE_S0; - return error; - } - - return ACPI_SUCCESS(acpi_hw_disable_all_gpes()) ? 0 : -EFAULT; -} - static int acpi_hibernation_enter(void) { acpi_status status = AE_OK; @@ -303,52 +319,55 @@ static void acpi_hibernation_leave(void) acpi_leave_sleep_state_prep(ACPI_STATE_S4); } -static void acpi_hibernation_finish(void) +static void acpi_pm_enable_gpes(void) { - acpi_disable_wakeup_device(ACPI_STATE_S4); - acpi_leave_sleep_state(ACPI_STATE_S4); - - /* reset firmware waking vector */ - acpi_set_firmware_waking_vector((acpi_physical_address) 0); - - acpi_target_sleep_state = ACPI_STATE_S0; + acpi_hw_enable_all_runtime_gpes(); } -static void acpi_hibernation_end(void) -{ - /* - * This is necessary in case acpi_hibernation_finish() is not called - * during a failing transition to the sleep state. - */ - acpi_target_sleep_state = ACPI_STATE_S0; -} +static struct platform_hibernation_ops acpi_hibernation_ops = { + .begin = acpi_hibernation_begin, + .end = acpi_pm_end, + .pre_snapshot = acpi_pm_prepare, + .finish = acpi_pm_finish, + .prepare = acpi_pm_prepare, + .enter = acpi_hibernation_enter, + .leave = acpi_hibernation_leave, + .pre_restore = acpi_pm_disable_gpes, + .restore_cleanup = acpi_pm_enable_gpes, +}; -static int acpi_hibernation_pre_restore(void) +/** + * acpi_hibernation_begin_old - Set the target system sleep state to + * ACPI_STATE_S4 and execute the _PTS control method. This + * function is used if the pre-ACPI 2.0 suspend ordering has been + * requested. + */ +static int acpi_hibernation_begin_old(void) { - acpi_status status; - - status = acpi_hw_disable_all_gpes(); - - return ACPI_SUCCESS(status) ? 0 : -EFAULT; -} + int error = acpi_sleep_prepare(ACPI_STATE_S4); -static void acpi_hibernation_restore_cleanup(void) -{ - acpi_hw_enable_all_runtime_gpes(); + if (!error) + acpi_target_sleep_state = ACPI_STATE_S4; + return error; } -static struct platform_hibernation_ops acpi_hibernation_ops = { - .begin = acpi_hibernation_begin, - .end = acpi_hibernation_end, - .pre_snapshot = acpi_hibernation_prepare, - .finish = acpi_hibernation_finish, - .prepare = acpi_hibernation_prepare, +/* + * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has + * been requested. + */ +static struct platform_hibernation_ops acpi_hibernation_ops_old = { + .begin = acpi_hibernation_begin_old, + .end = acpi_pm_end, + .pre_snapshot = acpi_pm_disable_gpes, + .finish = acpi_pm_finish, + .prepare = acpi_pm_disable_gpes, .enter = acpi_hibernation_enter, .leave = acpi_hibernation_leave, - .pre_restore = acpi_hibernation_pre_restore, - .restore_cleanup = acpi_hibernation_restore_cleanup, + .pre_restore = acpi_pm_disable_gpes, + .restore_cleanup = acpi_pm_enable_gpes, + .recover = acpi_pm_finish, }; -#endif /* CONFIG_HIBERNATION */ +#endif /* CONFIG_HIBERNATION */ int acpi_suspend(u32 acpi_state) { @@ -369,8 +388,8 @@ int acpi_suspend(u32 acpi_state) /** * acpi_pm_device_sleep_state - return preferred power state of ACPI device * in the system sleep state given by %acpi_target_sleep_state - * @dev: device to examine - * @wake: if set, the device should be able to wake up the system + * @dev: device to examine; its driver model wakeup flags control + * whether it should be able to wake up the system * @d_min_p: used to store the upper limit of allowed states range * Return value: preferred power state of the device on success, -ENODEV on * failure (ie. if there's no 'struct acpi_device' for @dev) @@ -388,7 +407,7 @@ int acpi_suspend(u32 acpi_state) * via @wake. */ -int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p) +int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p) { acpi_handle handle = DEVICE_ACPI_HANDLE(dev); struct acpi_device *adev; @@ -427,7 +446,7 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p) * can wake the system. _S0W may be valid, too. */ if (acpi_target_sleep_state == ACPI_STATE_S0 || - (wake && adev->wakeup.state.enabled && + (device_may_wakeup(dev) && adev->wakeup.state.enabled && adev->wakeup.sleep_state <= acpi_target_sleep_state)) { acpi_status status; @@ -473,8 +492,6 @@ int __init acpi_sleep_init(void) u8 type_a, type_b; #ifdef CONFIG_SUSPEND int i = 0; - - dmi_check_system(acpisleep_dmi_table); #endif if (acpi_disabled) @@ -492,13 +509,15 @@ int __init acpi_sleep_init(void) } } - suspend_set_ops(&acpi_suspend_ops); + suspend_set_ops(old_suspend_ordering ? + &acpi_suspend_ops_old : &acpi_suspend_ops); #endif #ifdef CONFIG_HIBERNATION status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b); if (ACPI_SUCCESS(status)) { - hibernation_set_ops(&acpi_hibernation_ops); + hibernation_set_ops(old_suspend_ordering ? + &acpi_hibernation_ops_old : &acpi_hibernation_ops); sleep_states[ACPI_STATE_S4] = 1; printk(" S4"); } diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 84c795fb9b1e..30a341337933 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -1179,8 +1179,8 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) tz->tz_enabled = 1; - printk(KERN_INFO PREFIX "%s is registered as thermal_zone%d\n", - tz->device->dev.bus_id, tz->thermal_zone->id); + dev_info(&tz->device->dev, "registered as thermal_zone%d\n", + tz->thermal_zone->id); return 0; } diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index d089c4519d45..6eb70560cda2 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -741,9 +741,8 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) if (IS_ERR(device->cdev)) return; - printk(KERN_INFO PREFIX - "%s is registered as cooling_device%d\n", - device->dev->dev.bus_id, device->cdev->id); + dev_info(&device->dev->dev, "registered as cooling_device%d\n", + device->cdev->id); result = sysfs_create_link(&device->dev->dev.kobj, &device->cdev->device.kobj, "thermal_cooling"); diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 6a4a2a25d97a..b55f2cb11059 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -56,6 +56,12 @@ MODULE_PARM_DESC(skip_host_reset, "skip global host reset (0=don't skip, 1=skip) static int ahci_enable_alpm(struct ata_port *ap, enum link_pm policy); static void ahci_disable_alpm(struct ata_port *ap); +static ssize_t ahci_led_show(struct ata_port *ap, char *buf); +static ssize_t ahci_led_store(struct ata_port *ap, const char *buf, + size_t size); +static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state, + ssize_t size); +#define MAX_SLOTS 8 enum { AHCI_PCI_BAR = 5, @@ -98,6 +104,8 @@ enum { HOST_IRQ_STAT = 0x08, /* interrupt status */ HOST_PORTS_IMPL = 0x0c, /* bitmap of implemented ports */ HOST_VERSION = 0x10, /* AHCI spec. version compliancy */ + HOST_EM_LOC = 0x1c, /* Enclosure Management location */ + HOST_EM_CTL = 0x20, /* Enclosure Management Control */ /* HOST_CTL bits */ HOST_RESET = (1 << 0), /* reset controller; self-clear */ @@ -105,6 +113,7 @@ enum { HOST_AHCI_EN = (1 << 31), /* AHCI enabled */ /* HOST_CAP bits */ + HOST_CAP_EMS = (1 << 6), /* Enclosure Management support */ HOST_CAP_SSC = (1 << 14), /* Slumber capable */ HOST_CAP_PMP = (1 << 17), /* Port Multiplier support */ HOST_CAP_CLO = (1 << 24), /* Command List Override support */ @@ -202,6 +211,11 @@ enum { ATA_FLAG_IPM, ICH_MAP = 0x90, /* ICH MAP register */ + + /* em_ctl bits */ + EM_CTL_RST = (1 << 9), /* Reset */ + EM_CTL_TM = (1 << 8), /* Transmit Message */ + EM_CTL_ALHD = (1 << 26), /* Activity LED */ }; struct ahci_cmd_hdr { @@ -219,12 +233,21 @@ struct ahci_sg { __le32 flags_size; }; +struct ahci_em_priv { + enum sw_activity blink_policy; + struct timer_list timer; + unsigned long saved_activity; + unsigned long activity; + unsigned long led_state; +}; + struct ahci_host_priv { unsigned int flags; /* AHCI_HFLAG_* */ u32 cap; /* cap to use */ u32 port_map; /* port map to use */ u32 saved_cap; /* saved initial cap */ u32 saved_port_map; /* saved initial port_map */ + u32 em_loc; /* enclosure management location */ }; struct ahci_port_priv { @@ -240,6 +263,8 @@ struct ahci_port_priv { unsigned int ncq_saw_dmas:1; unsigned int ncq_saw_sdb:1; u32 intr_mask; /* interrupts to enable */ + struct ahci_em_priv em_priv[MAX_SLOTS];/* enclosure management info + * per PM slot */ }; static int ahci_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); @@ -277,9 +302,20 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg); static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); static int ahci_pci_device_resume(struct pci_dev *pdev); #endif +static ssize_t ahci_activity_show(struct ata_device *dev, char *buf); +static ssize_t ahci_activity_store(struct ata_device *dev, + enum sw_activity val); +static void ahci_init_sw_activity(struct ata_link *link); static struct device_attribute *ahci_shost_attrs[] = { &dev_attr_link_power_management_policy, + &dev_attr_em_message_type, + &dev_attr_em_message, + NULL +}; + +static struct device_attribute *ahci_sdev_attrs[] = { + &dev_attr_sw_activity, NULL }; @@ -289,6 +325,7 @@ static struct scsi_host_template ahci_sht = { .sg_tablesize = AHCI_MAX_SG, .dma_boundary = AHCI_DMA_BOUNDARY, .shost_attrs = ahci_shost_attrs, + .sdev_attrs = ahci_sdev_attrs, }; static struct ata_port_operations ahci_ops = { @@ -316,6 +353,10 @@ static struct ata_port_operations ahci_ops = { .enable_pm = ahci_enable_alpm, .disable_pm = ahci_disable_alpm, + .em_show = ahci_led_show, + .em_store = ahci_led_store, + .sw_activity_show = ahci_activity_show, + .sw_activity_store = ahci_activity_store, #ifdef CONFIG_PM .port_suspend = ahci_port_suspend, .port_resume = ahci_port_resume, @@ -561,6 +602,11 @@ static struct pci_driver ahci_pci_driver = { #endif }; +static int ahci_em_messages = 1; +module_param(ahci_em_messages, int, 0444); +/* add other LED protocol types when they become supported */ +MODULE_PARM_DESC(ahci_em_messages, + "Set AHCI Enclosure Management Message type (0 = disabled, 1 = LED"); static inline int ahci_nr_ports(u32 cap) { @@ -1031,11 +1077,28 @@ static void ahci_power_down(struct ata_port *ap) static void ahci_start_port(struct ata_port *ap) { + struct ahci_port_priv *pp = ap->private_data; + struct ata_link *link; + struct ahci_em_priv *emp; + /* enable FIS reception */ ahci_start_fis_rx(ap); /* enable DMA */ ahci_start_engine(ap); + + /* turn on LEDs */ + if (ap->flags & ATA_FLAG_EM) { + ata_port_for_each_link(link, ap) { + emp = &pp->em_priv[link->pmp]; + ahci_transmit_led_message(ap, emp->led_state, 4); + } + } + + if (ap->flags & ATA_FLAG_SW_ACTIVITY) + ata_port_for_each_link(link, ap) + ahci_init_sw_activity(link); + } static int ahci_deinit_port(struct ata_port *ap, const char **emsg) @@ -1116,6 +1179,230 @@ static int ahci_reset_controller(struct ata_host *host) return 0; } +static void ahci_sw_activity(struct ata_link *link) +{ + struct ata_port *ap = link->ap; + struct ahci_port_priv *pp = ap->private_data; + struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; + + if (!(link->flags & ATA_LFLAG_SW_ACTIVITY)) + return; + + emp->activity++; + if (!timer_pending(&emp->timer)) + mod_timer(&emp->timer, jiffies + msecs_to_jiffies(10)); +} + +static void ahci_sw_activity_blink(unsigned long arg) +{ + struct ata_link *link = (struct ata_link *)arg; + struct ata_port *ap = link->ap; + struct ahci_port_priv *pp = ap->private_data; + struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; + unsigned long led_message = emp->led_state; + u32 activity_led_state; + + led_message &= 0xffff0000; + led_message |= ap->port_no | (link->pmp << 8); + + /* check to see if we've had activity. If so, + * toggle state of LED and reset timer. If not, + * turn LED to desired idle state. + */ + if (emp->saved_activity != emp->activity) { + emp->saved_activity = emp->activity; + /* get the current LED state */ + activity_led_state = led_message & 0x00010000; + + if (activity_led_state) + activity_led_state = 0; + else + activity_led_state = 1; + + /* clear old state */ + led_message &= 0xfff8ffff; + + /* toggle state */ + led_message |= (activity_led_state << 16); + mod_timer(&emp->timer, jiffies + msecs_to_jiffies(100)); + } else { + /* switch to idle */ + led_message &= 0xfff8ffff; + if (emp->blink_policy == BLINK_OFF) + led_message |= (1 << 16); + } + ahci_transmit_led_message(ap, led_message, 4); +} + +static void ahci_init_sw_activity(struct ata_link *link) +{ + struct ata_port *ap = link->ap; + struct ahci_port_priv *pp = ap->private_data; + struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; + + /* init activity stats, setup timer */ + emp->saved_activity = emp->activity = 0; + setup_timer(&emp->timer, ahci_sw_activity_blink, (unsigned long)link); + + /* check our blink policy and set flag for link if it's enabled */ + if (emp->blink_policy) + link->flags |= ATA_LFLAG_SW_ACTIVITY; +} + +static int ahci_reset_em(struct ata_host *host) +{ + void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; + u32 em_ctl; + + em_ctl = readl(mmio + HOST_EM_CTL); + if ((em_ctl & EM_CTL_TM) || (em_ctl & EM_CTL_RST)) + return -EINVAL; + + writel(em_ctl | EM_CTL_RST, mmio + HOST_EM_CTL); + return 0; +} + +static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state, + ssize_t size) +{ + struct ahci_host_priv *hpriv = ap->host->private_data; + struct ahci_port_priv *pp = ap->private_data; + void __iomem *mmio = ap->host->iomap[AHCI_PCI_BAR]; + u32 em_ctl; + u32 message[] = {0, 0}; + unsigned int flags; + int pmp; + struct ahci_em_priv *emp; + + /* get the slot number from the message */ + pmp = (state & 0x0000ff00) >> 8; + if (pmp < MAX_SLOTS) + emp = &pp->em_priv[pmp]; + else + return -EINVAL; + + spin_lock_irqsave(ap->lock, flags); + + /* + * if we are still busy transmitting a previous message, + * do not allow + */ + em_ctl = readl(mmio + HOST_EM_CTL); + if (em_ctl & EM_CTL_TM) { + spin_unlock_irqrestore(ap->lock, flags); + return -EINVAL; + } + + /* + * create message header - this is all zero except for + * the message size, which is 4 bytes. + */ + message[0] |= (4 << 8); + + /* ignore 0:4 of byte zero, fill in port info yourself */ + message[1] = ((state & 0xfffffff0) | ap->port_no); + + /* write message to EM_LOC */ + writel(message[0], mmio + hpriv->em_loc); + writel(message[1], mmio + hpriv->em_loc+4); + + /* save off new led state for port/slot */ + emp->led_state = message[1]; + + /* + * tell hardware to transmit the message + */ + writel(em_ctl | EM_CTL_TM, mmio + HOST_EM_CTL); + + spin_unlock_irqrestore(ap->lock, flags); + return size; +} + +static ssize_t ahci_led_show(struct ata_port *ap, char *buf) +{ + struct ahci_port_priv *pp = ap->private_data; + struct ata_link *link; + struct ahci_em_priv *emp; + int rc = 0; + + ata_port_for_each_link(link, ap) { + emp = &pp->em_priv[link->pmp]; + rc += sprintf(buf, "%lx\n", emp->led_state); + } + return rc; +} + +static ssize_t ahci_led_store(struct ata_port *ap, const char *buf, + size_t size) +{ + int state; + int pmp; + struct ahci_port_priv *pp = ap->private_data; + struct ahci_em_priv *emp; + + state = simple_strtoul(buf, NULL, 0); + + /* get the slot number from the message */ + pmp = (state & 0x0000ff00) >> 8; + if (pmp < MAX_SLOTS) + emp = &pp->em_priv[pmp]; + else + return -EINVAL; + + /* mask off the activity bits if we are in sw_activity + * mode, user should turn off sw_activity before setting + * activity led through em_message + */ + if (emp->blink_policy) + state &= 0xfff8ffff; + + return ahci_transmit_led_message(ap, state, size); +} + +static ssize_t ahci_activity_store(struct ata_device *dev, enum sw_activity val) +{ + struct ata_link *link = dev->link; + struct ata_port *ap = link->ap; + struct ahci_port_priv *pp = ap->private_data; + struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; + u32 port_led_state = emp->led_state; + + /* save the desired Activity LED behavior */ + if (val == OFF) { + /* clear LFLAG */ + link->flags &= ~(ATA_LFLAG_SW_ACTIVITY); + + /* set the LED to OFF */ + port_led_state &= 0xfff80000; + port_led_state |= (ap->port_no | (link->pmp << 8)); + ahci_transmit_led_message(ap, port_led_state, 4); + } else { + link->flags |= ATA_LFLAG_SW_ACTIVITY; + if (val == BLINK_OFF) { + /* set LED to ON for idle */ + port_led_state &= 0xfff80000; + port_led_state |= (ap->port_no | (link->pmp << 8)); + port_led_state |= 0x00010000; /* check this */ + ahci_transmit_led_message(ap, port_led_state, 4); + } + } + emp->blink_policy = val; + return 0; +} + +static ssize_t ahci_activity_show(struct ata_device *dev, char *buf) +{ + struct ata_link *link = dev->link; + struct ata_port *ap = link->ap; + struct ahci_port_priv *pp = ap->private_data; + struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; + + /* display the saved value of activity behavior for this + * disk. + */ + return sprintf(buf, "%d\n", emp->blink_policy); +} + static void ahci_port_init(struct pci_dev *pdev, struct ata_port *ap, int port_no, void __iomem *mmio, void __iomem *port_mmio) @@ -1841,6 +2128,8 @@ static unsigned int ahci_qc_issue(struct ata_queued_cmd *qc) writel(1 << qc->tag, port_mmio + PORT_CMD_ISSUE); readl(port_mmio + PORT_CMD_ISSUE); /* flush */ + ahci_sw_activity(qc->dev->link); + return 0; } @@ -2147,7 +2436,8 @@ static void ahci_print_info(struct ata_host *host) dev_printk(KERN_INFO, &pdev->dev, "flags: " "%s%s%s%s%s%s%s" - "%s%s%s%s%s%s%s\n" + "%s%s%s%s%s%s%s" + "%s\n" , cap & (1 << 31) ? "64bit " : "", @@ -2164,7 +2454,8 @@ static void ahci_print_info(struct ata_host *host) cap & (1 << 17) ? "pmp " : "", cap & (1 << 15) ? "pio " : "", cap & (1 << 14) ? "slum " : "", - cap & (1 << 13) ? "part " : "" + cap & (1 << 13) ? "part " : "", + cap & (1 << 6) ? "ems ": "" ); } @@ -2284,6 +2575,24 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (hpriv->cap & HOST_CAP_PMP) pi.flags |= ATA_FLAG_PMP; + if (ahci_em_messages && (hpriv->cap & HOST_CAP_EMS)) { + u8 messages; + void __iomem *mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR]; + u32 em_loc = readl(mmio + HOST_EM_LOC); + u32 em_ctl = readl(mmio + HOST_EM_CTL); + + messages = (em_ctl & 0x000f0000) >> 16; + + /* we only support LED message type right now */ + if ((messages & 0x01) && (ahci_em_messages == 1)) { + /* store em_loc */ + hpriv->em_loc = ((em_loc >> 16) * 4); + pi.flags |= ATA_FLAG_EM; + if (!(em_ctl & EM_CTL_ALHD)) + pi.flags |= ATA_FLAG_SW_ACTIVITY; + } + } + /* CAP.NP sometimes indicate the index of the last enabled * port, at other times, that of the last possible port, so * determining the maximum port number requires looking at @@ -2297,6 +2606,9 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) host->iomap = pcim_iomap_table(pdev); host->private_data = hpriv; + if (pi.flags & ATA_FLAG_EM) + ahci_reset_em(host); + for (i = 0; i < host->n_ports; i++) { struct ata_port *ap = host->ports[i]; @@ -2307,6 +2619,11 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) /* set initial link pm policy */ ap->pm_policy = NOT_AVAILABLE; + /* set enclosure management message type */ + if (ap->flags & ATA_FLAG_EM) + ap->em_message_type = ahci_em_messages; + + /* disabled/not-implemented port */ if (!(hpriv->port_map & (1 << i))) ap->ops = &ata_dummy_port_ops; diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 303fc0d2b978..9bef1a84fe3f 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -54,7 +54,6 @@ #include <linux/completion.h> #include <linux/suspend.h> #include <linux/workqueue.h> -#include <linux/jiffies.h> #include <linux/scatterlist.h> #include <linux/io.h> #include <scsi/scsi.h> @@ -145,7 +144,7 @@ static int libata_dma_mask = ATA_DMA_MASK_ATA|ATA_DMA_MASK_ATAPI|ATA_DMA_MASK_CF module_param_named(dma, libata_dma_mask, int, 0444); MODULE_PARM_DESC(dma, "DMA enable/disable (0x1==ATA, 0x2==ATAPI, 0x4==CF)"); -static int ata_probe_timeout = ATA_TMOUT_INTERNAL / HZ; +static int ata_probe_timeout; module_param(ata_probe_timeout, int, 0444); MODULE_PARM_DESC(ata_probe_timeout, "Set ATA probing timeout (seconds)"); @@ -1533,7 +1532,7 @@ unsigned long ata_id_xfermask(const u16 *id) * @ap: The ata_port to queue port_task for * @fn: workqueue function to be scheduled * @data: data for @fn to use - * @delay: delay time for workqueue function + * @delay: delay time in msecs for workqueue function * * Schedule @fn(@data) for execution after @delay jiffies using * port_task. There is one port_task per port and it's the @@ -1552,7 +1551,7 @@ void ata_pio_queue_task(struct ata_port *ap, void *data, unsigned long delay) ap->port_task_data = data; /* may fail if ata_port_flush_task() in progress */ - queue_delayed_work(ata_wq, &ap->port_task, delay); + queue_delayed_work(ata_wq, &ap->port_task, msecs_to_jiffies(delay)); } /** @@ -1612,6 +1611,7 @@ unsigned ata_exec_internal_sg(struct ata_device *dev, struct ata_link *link = dev->link; struct ata_port *ap = link->ap; u8 command = tf->command; + int auto_timeout = 0; struct ata_queued_cmd *qc; unsigned int tag, preempted_tag; u32 preempted_sactive, preempted_qc_active; @@ -1684,8 +1684,14 @@ unsigned ata_exec_internal_sg(struct ata_device *dev, spin_unlock_irqrestore(ap->lock, flags); - if (!timeout) - timeout = ata_probe_timeout * 1000 / HZ; + if (!timeout) { + if (ata_probe_timeout) + timeout = ata_probe_timeout * 1000; + else { + timeout = ata_internal_cmd_timeout(dev, command); + auto_timeout = 1; + } + } rc = wait_for_completion_timeout(&wait, msecs_to_jiffies(timeout)); @@ -1761,6 +1767,9 @@ unsigned ata_exec_internal_sg(struct ata_device *dev, spin_unlock_irqrestore(ap->lock, flags); + if ((err_mask & AC_ERR_TIMEOUT) && auto_timeout) + ata_internal_cmd_timed_out(dev, command); + return err_mask; } @@ -3319,7 +3328,7 @@ int ata_wait_ready(struct ata_link *link, unsigned long deadline, int (*check_ready)(struct ata_link *link)) { unsigned long start = jiffies; - unsigned long nodev_deadline = start + ATA_TMOUT_FF_WAIT; + unsigned long nodev_deadline = ata_deadline(start, ATA_TMOUT_FF_WAIT); int warned = 0; if (time_after(nodev_deadline, deadline)) @@ -3387,7 +3396,7 @@ int ata_wait_ready(struct ata_link *link, unsigned long deadline, int ata_wait_after_reset(struct ata_link *link, unsigned long deadline, int (*check_ready)(struct ata_link *link)) { - msleep(ATA_WAIT_AFTER_RESET_MSECS); + msleep(ATA_WAIT_AFTER_RESET); return ata_wait_ready(link, deadline, check_ready); } @@ -3417,13 +3426,13 @@ int ata_wait_after_reset(struct ata_link *link, unsigned long deadline, int sata_link_debounce(struct ata_link *link, const unsigned long *params, unsigned long deadline) { - unsigned long interval_msec = params[0]; - unsigned long duration = msecs_to_jiffies(params[1]); + unsigned long interval = params[0]; + unsigned long duration = params[1]; unsigned long last_jiffies, t; u32 last, cur; int rc; - t = jiffies + msecs_to_jiffies(params[2]); + t = ata_deadline(jiffies, params[2]); if (time_before(t, deadline)) deadline = t; @@ -3435,7 +3444,7 @@ int sata_link_debounce(struct ata_link *link, const unsigned long *params, last_jiffies = jiffies; while (1) { - msleep(interval_msec); + msleep(interval); if ((rc = sata_scr_read(link, SCR_STATUS, &cur))) return rc; cur &= 0xf; @@ -3444,7 +3453,8 @@ int sata_link_debounce(struct ata_link *link, const unsigned long *params, if (cur == last) { if (cur == 1 && time_before(jiffies, deadline)) continue; - if (time_after(jiffies, last_jiffies + duration)) + if (time_after(jiffies, + ata_deadline(last_jiffies, duration))) return 0; continue; } @@ -3636,7 +3646,8 @@ int sata_link_hardreset(struct ata_link *link, const unsigned long *timing, if (check_ready) { unsigned long pmp_deadline; - pmp_deadline = jiffies + ATA_TMOUT_PMP_SRST_WAIT; + pmp_deadline = ata_deadline(jiffies, + ATA_TMOUT_PMP_SRST_WAIT); if (time_after(pmp_deadline, deadline)) pmp_deadline = deadline; ata_wait_ready(link, pmp_deadline, check_ready); @@ -6073,8 +6084,6 @@ static void __init ata_parse_force_param(void) static int __init ata_init(void) { - ata_probe_timeout *= HZ; - ata_parse_force_param(); ata_wq = create_workqueue("ata"); @@ -6127,8 +6136,8 @@ int ata_ratelimit(void) * @reg: IO-mapped register * @mask: Mask to apply to read register value * @val: Wait condition - * @interval_msec: polling interval in milliseconds - * @timeout_msec: timeout in milliseconds + * @interval: polling interval in milliseconds + * @timeout: timeout in milliseconds * * Waiting for some bits of register to change is a common * operation for ATA controllers. This function reads 32bit LE @@ -6146,10 +6155,9 @@ int ata_ratelimit(void) * The final register value. */ u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val, - unsigned long interval_msec, - unsigned long timeout_msec) + unsigned long interval, unsigned long timeout) { - unsigned long timeout; + unsigned long deadline; u32 tmp; tmp = ioread32(reg); @@ -6158,10 +6166,10 @@ u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val, * preceding writes reach the controller before starting to * eat away the timeout. */ - timeout = jiffies + (timeout_msec * HZ) / 1000; + deadline = ata_deadline(jiffies, timeout); - while ((tmp & mask) == val && time_before(jiffies, timeout)) { - msleep(interval_msec); + while ((tmp & mask) == val && time_before(jiffies, deadline)) { + msleep(interval); tmp = ioread32(reg); } diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 7894d83ea1eb..d5f03a6e3334 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -66,15 +66,19 @@ enum { ATA_ECAT_DUBIOUS_TOUT_HSM = 6, ATA_ECAT_DUBIOUS_UNK_DEV = 7, ATA_ECAT_NR = 8, -}; -/* Waiting in ->prereset can never be reliable. It's sometimes nice - * to wait there but it can't be depended upon; otherwise, we wouldn't - * be resetting. Just give it enough time for most drives to spin up. - */ -enum { - ATA_EH_PRERESET_TIMEOUT = 10 * HZ, - ATA_EH_FASTDRAIN_INTERVAL = 3 * HZ, + ATA_EH_CMD_DFL_TIMEOUT = 5000, + + /* always put at least this amount of time between resets */ + ATA_EH_RESET_COOL_DOWN = 5000, + + /* Waiting in ->prereset can never be reliable. It's + * sometimes nice to wait there but it can't be depended upon; + * otherwise, we wouldn't be resetting. Just give it enough + * time for most drives to spin up. + */ + ATA_EH_PRERESET_TIMEOUT = 10000, + ATA_EH_FASTDRAIN_INTERVAL = 3000, }; /* The following table determines how we sequence resets. Each entry @@ -84,13 +88,60 @@ enum { * are mostly for error handling, hotplug and retarded devices. */ static const unsigned long ata_eh_reset_timeouts[] = { - 10 * HZ, /* most drives spin up by 10sec */ - 10 * HZ, /* > 99% working drives spin up before 20sec */ - 35 * HZ, /* give > 30 secs of idleness for retarded devices */ - 5 * HZ, /* and sweet one last chance */ - /* > 1 min has elapsed, give up */ + 10000, /* most drives spin up by 10sec */ + 10000, /* > 99% working drives spin up before 20sec */ + 35000, /* give > 30 secs of idleness for retarded devices */ + 5000, /* and sweet one last chance */ + ULONG_MAX, /* > 1 min has elapsed, give up */ +}; + +static const unsigned long ata_eh_identify_timeouts[] = { + 5000, /* covers > 99% of successes and not too boring on failures */ + 10000, /* combined time till here is enough even for media access */ + 30000, /* for true idiots */ + ULONG_MAX, }; +static const unsigned long ata_eh_other_timeouts[] = { + 5000, /* same rationale as identify timeout */ + 10000, /* ditto */ + /* but no merciful 30sec for other commands, it just isn't worth it */ + ULONG_MAX, +}; + +struct ata_eh_cmd_timeout_ent { + const u8 *commands; + const unsigned long *timeouts; +}; + +/* The following table determines timeouts to use for EH internal + * commands. Each table entry is a command class and matches the + * commands the entry applies to and the timeout table to use. + * + * On the retry after a command timed out, the next timeout value from + * the table is used. If the table doesn't contain further entries, + * the last value is used. + * + * ehc->cmd_timeout_idx keeps track of which timeout to use per + * command class, so if SET_FEATURES times out on the first try, the + * next try will use the second timeout value only for that class. + */ +#define CMDS(cmds...) (const u8 []){ cmds, 0 } +static const struct ata_eh_cmd_timeout_ent +ata_eh_cmd_timeout_table[ATA_EH_CMD_TIMEOUT_TABLE_SIZE] = { + { .commands = CMDS(ATA_CMD_ID_ATA, ATA_CMD_ID_ATAPI), + .timeouts = ata_eh_identify_timeouts, }, + { .commands = CMDS(ATA_CMD_READ_NATIVE_MAX, ATA_CMD_READ_NATIVE_MAX_EXT), + .timeouts = ata_eh_other_timeouts, }, + { .commands = CMDS(ATA_CMD_SET_MAX, ATA_CMD_SET_MAX_EXT), + .timeouts = ata_eh_other_timeouts, }, + { .commands = CMDS(ATA_CMD_SET_FEATURES), + .timeouts = ata_eh_other_timeouts, }, + { .commands = CMDS(ATA_CMD_INIT_DEV_PARAMS), + .timeouts = ata_eh_other_timeouts, }, +}; +#undef CMDS + static void __ata_port_freeze(struct ata_port *ap); #ifdef CONFIG_PM static void ata_eh_handle_port_suspend(struct ata_port *ap); @@ -236,6 +287,73 @@ void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset, #endif /* CONFIG_PCI */ +static int ata_lookup_timeout_table(u8 cmd) +{ + int i; + + for (i = 0; i < ATA_EH_CMD_TIMEOUT_TABLE_SIZE; i++) { + const u8 *cur; + + for (cur = ata_eh_cmd_timeout_table[i].commands; *cur; cur++) + if (*cur == cmd) + return i; + } + + return -1; +} + +/** + * ata_internal_cmd_timeout - determine timeout for an internal command + * @dev: target device + * @cmd: internal command to be issued + * + * Determine timeout for internal command @cmd for @dev. + * + * LOCKING: + * EH context. + * + * RETURNS: + * Determined timeout. + */ +unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd) +{ + struct ata_eh_context *ehc = &dev->link->eh_context; + int ent = ata_lookup_timeout_table(cmd); + int idx; + + if (ent < 0) + return ATA_EH_CMD_DFL_TIMEOUT; + + idx = ehc->cmd_timeout_idx[dev->devno][ent]; + return ata_eh_cmd_timeout_table[ent].timeouts[idx]; +} + +/** + * ata_internal_cmd_timed_out - notification for internal command timeout + * @dev: target device + * @cmd: internal command which timed out + * + * Notify EH that internal command @cmd for @dev timed out. This + * function should be called only for commands whose timeouts are + * determined using ata_internal_cmd_timeout(). + * + * LOCKING: + * EH context. + */ +void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd) +{ + struct ata_eh_context *ehc = &dev->link->eh_context; + int ent = ata_lookup_timeout_table(cmd); + int idx; + + if (ent < 0) + return; + + idx = ehc->cmd_timeout_idx[dev->devno][ent]; + if (ata_eh_cmd_timeout_table[ent].timeouts[idx + 1] != ULONG_MAX) + ehc->cmd_timeout_idx[dev->devno][ent]++; +} + static void ata_ering_record(struct ata_ering *ering, unsigned int eflags, unsigned int err_mask) { @@ -486,6 +604,9 @@ void ata_scsi_error(struct Scsi_Host *host) if (ata_ncq_enabled(dev)) ehc->saved_ncq_enabled |= 1 << devno; } + + /* set last reset timestamp to some time in the past */ + ehc->last_reset = jiffies - 60 * HZ; } ap->pflags |= ATA_PFLAG_EH_IN_PROGRESS; @@ -641,7 +762,7 @@ void ata_eh_fastdrain_timerfn(unsigned long arg) /* some qcs have finished, give it another chance */ ap->fastdrain_cnt = cnt; ap->fastdrain_timer.expires = - jiffies + ATA_EH_FASTDRAIN_INTERVAL; + ata_deadline(jiffies, ATA_EH_FASTDRAIN_INTERVAL); add_timer(&ap->fastdrain_timer); } @@ -681,7 +802,8 @@ static void ata_eh_set_pending(struct ata_port *ap, int fastdrain) /* activate fast drain */ ap->fastdrain_cnt = cnt; - ap->fastdrain_timer.expires = jiffies + ATA_EH_FASTDRAIN_INTERVAL; + ap->fastdrain_timer.expires = + ata_deadline(jiffies, ATA_EH_FASTDRAIN_INTERVAL); add_timer(&ap->fastdrain_timer); } @@ -2071,13 +2193,12 @@ int ata_eh_reset(struct ata_link *link, int classify, ata_prereset_fn_t prereset, ata_reset_fn_t softreset, ata_reset_fn_t hardreset, ata_postreset_fn_t postreset) { - const int max_tries = ARRAY_SIZE(ata_eh_reset_timeouts); struct ata_port *ap = link->ap; struct ata_eh_context *ehc = &link->eh_context; unsigned int *classes = ehc->classes; unsigned int lflags = link->flags; int verbose = !(ehc->i.flags & ATA_EHI_QUIET); - int try = 0; + int max_tries = 0, try = 0; struct ata_device *dev; unsigned long deadline, now; ata_reset_fn_t reset; @@ -2088,11 +2209,20 @@ int ata_eh_reset(struct ata_link *link, int classify, /* * Prepare to reset */ + while (ata_eh_reset_timeouts[max_tries] != ULONG_MAX) + max_tries++; + + now = jiffies; + deadline = ata_deadline(ehc->last_reset, ATA_EH_RESET_COOL_DOWN); + if (time_before(now, deadline)) + schedule_timeout_uninterruptible(deadline - now); + spin_lock_irqsave(ap->lock, flags); ap->pflags |= ATA_PFLAG_RESETTING; spin_unlock_irqrestore(ap->lock, flags); ata_eh_about_to_do(link, NULL, ATA_EH_RESET); + ehc->last_reset = jiffies; ata_link_for_each_dev(dev, link) { /* If we issue an SRST then an ATA drive (not ATAPI) @@ -2125,7 +2255,8 @@ int ata_eh_reset(struct ata_link *link, int classify, } if (prereset) { - rc = prereset(link, jiffies + ATA_EH_PRERESET_TIMEOUT); + rc = prereset(link, + ata_deadline(jiffies, ATA_EH_PRERESET_TIMEOUT)); if (rc) { if (rc == -ENOENT) { ata_link_printk(link, KERN_DEBUG, @@ -2157,10 +2288,11 @@ int ata_eh_reset(struct ata_link *link, int classify, /* * Perform reset */ + ehc->last_reset = jiffies; if (ata_is_host_link(link)) ata_eh_freeze_port(ap); - deadline = jiffies + ata_eh_reset_timeouts[try++]; + deadline = ata_deadline(jiffies, ata_eh_reset_timeouts[try++]); if (reset) { if (verbose) @@ -2277,6 +2409,7 @@ int ata_eh_reset(struct ata_link *link, int classify, /* reset successful, schedule revalidation */ ata_eh_done(link, NULL, ATA_EH_RESET); + ehc->last_reset = jiffies; ehc->i.action |= ATA_EH_REVALIDATE; rc = 0; @@ -2303,9 +2436,9 @@ int ata_eh_reset(struct ata_link *link, int classify, if (time_before(now, deadline)) { unsigned long delta = deadline - now; - ata_link_printk(link, KERN_WARNING, "reset failed " - "(errno=%d), retrying in %u secs\n", - rc, (jiffies_to_msecs(delta) + 999) / 1000); + ata_link_printk(link, KERN_WARNING, + "reset failed (errno=%d), retrying in %u secs\n", + rc, DIV_ROUND_UP(jiffies_to_msecs(delta), 1000)); while (delta) delta = schedule_timeout_uninterruptible(delta); @@ -2583,8 +2716,11 @@ static int ata_eh_handle_dev_fail(struct ata_device *dev, int err) ata_eh_detach_dev(dev); /* schedule probe if necessary */ - if (ata_eh_schedule_probe(dev)) + if (ata_eh_schedule_probe(dev)) { ehc->tries[dev->devno] = ATA_EH_DEV_TRIES; + memset(ehc->cmd_timeout_idx[dev->devno], 0, + sizeof(ehc->cmd_timeout_idx[dev->devno])); + } return 1; } else { @@ -2622,7 +2758,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, { struct ata_link *link; struct ata_device *dev; - int nr_failed_devs, nr_disabled_devs; + int nr_failed_devs; int rc; unsigned long flags; @@ -2665,7 +2801,6 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, retry: rc = 0; nr_failed_devs = 0; - nr_disabled_devs = 0; /* if UNLOADING, finish immediately */ if (ap->pflags & ATA_PFLAG_UNLOADING) @@ -2732,8 +2867,7 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, dev_fail: nr_failed_devs++; - if (ata_eh_handle_dev_fail(dev, rc)) - nr_disabled_devs++; + ata_eh_handle_dev_fail(dev, rc); if (ap->pflags & ATA_PFLAG_FROZEN) { /* PMP reset requires working host port. @@ -2745,18 +2879,8 @@ dev_fail: } } - if (nr_failed_devs) { - if (nr_failed_devs != nr_disabled_devs) { - ata_port_printk(ap, KERN_WARNING, "failed to recover " - "some devices, retrying in 5 secs\n"); - ssleep(5); - } else { - /* no device left to recover, repeat fast */ - msleep(500); - } - + if (nr_failed_devs) goto retry; - } out: if (rc && r_failed_link) diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c index 7daf4c0f6216..b65db309c181 100644 --- a/drivers/ata/libata-pmp.c +++ b/drivers/ata/libata-pmp.c @@ -727,19 +727,12 @@ static int sata_pmp_eh_recover_pmp(struct ata_port *ap, } if (tries) { - int sleep = ehc->i.flags & ATA_EHI_DID_RESET; - /* consecutive revalidation failures? speed down */ if (reval_failed) sata_down_spd_limit(link); else reval_failed = 1; - ata_dev_printk(dev, KERN_WARNING, - "retrying reset%s\n", - sleep ? " in 5 secs" : ""); - if (sleep) - ssleep(5); ehc->i.action |= ATA_EH_RESET; goto retry; } else { @@ -785,7 +778,8 @@ static int sata_pmp_eh_handle_disabled_links(struct ata_port *ap) * SError.N working. */ sata_link_hardreset(link, sata_deb_timing_normal, - jiffies + ATA_TMOUT_INTERNAL_QUICK, NULL, NULL); + ata_deadline(jiffies, ATA_TMOUT_INTERNAL_QUICK), + NULL, NULL); /* unconditionally clear SError.N */ rc = sata_scr_write(link, SCR_ERROR, SERR_PHYRDY_CHG); @@ -990,10 +984,7 @@ static int sata_pmp_eh_recover(struct ata_port *ap) goto retry; if (--pmp_tries) { - ata_port_printk(ap, KERN_WARNING, - "failed to recover PMP, retrying in 5 secs\n"); pmp_ehc->i.action |= ATA_EH_RESET; - ssleep(5); goto retry; } diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 57a43649a461..b578b11caa7b 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -190,6 +190,85 @@ static void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq) scsi_build_sense_buffer(0, cmd->sense_buffer, sk, asc, ascq); } +static ssize_t +ata_scsi_em_message_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct ata_port *ap = ata_shost_to_port(shost); + if (ap->ops->em_store && (ap->flags & ATA_FLAG_EM)) + return ap->ops->em_store(ap, buf, count); + return -EINVAL; +} + +static ssize_t +ata_scsi_em_message_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct ata_port *ap = ata_shost_to_port(shost); + + if (ap->ops->em_show && (ap->flags & ATA_FLAG_EM)) + return ap->ops->em_show(ap, buf); + return -EINVAL; +} +DEVICE_ATTR(em_message, S_IRUGO | S_IWUGO, + ata_scsi_em_message_show, ata_scsi_em_message_store); +EXPORT_SYMBOL_GPL(dev_attr_em_message); + +static ssize_t +ata_scsi_em_message_type_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct ata_port *ap = ata_shost_to_port(shost); + + return snprintf(buf, 23, "%d\n", ap->em_message_type); +} +DEVICE_ATTR(em_message_type, S_IRUGO, + ata_scsi_em_message_type_show, NULL); +EXPORT_SYMBOL_GPL(dev_attr_em_message_type); + +static ssize_t +ata_scsi_activity_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct ata_port *ap = ata_shost_to_port(sdev->host); + struct ata_device *atadev = ata_scsi_find_dev(ap, sdev); + + if (ap->ops->sw_activity_show && (ap->flags & ATA_FLAG_SW_ACTIVITY)) + return ap->ops->sw_activity_show(atadev, buf); + return -EINVAL; +} + +static ssize_t +ata_scsi_activity_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct scsi_device *sdev = to_scsi_device(dev); + struct ata_port *ap = ata_shost_to_port(sdev->host); + struct ata_device *atadev = ata_scsi_find_dev(ap, sdev); + enum sw_activity val; + int rc; + + if (ap->ops->sw_activity_store && (ap->flags & ATA_FLAG_SW_ACTIVITY)) { + val = simple_strtoul(buf, NULL, 0); + switch (val) { + case OFF: case BLINK_ON: case BLINK_OFF: + rc = ap->ops->sw_activity_store(atadev, val); + if (!rc) + return count; + else + return rc; + } + } + return -EINVAL; +} +DEVICE_ATTR(sw_activity, S_IWUGO | S_IRUGO, ata_scsi_activity_show, + ata_scsi_activity_store); +EXPORT_SYMBOL_GPL(dev_attr_sw_activity); + static void ata_scsi_invalid_field(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) { diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 215d18672a5a..e0c7256ab4e8 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -345,8 +345,8 @@ void ata_sff_dma_pause(struct ata_port *ap) /** * ata_sff_busy_sleep - sleep until BSY clears, or timeout * @ap: port containing status register to be polled - * @tmout_pat: impatience timeout - * @tmout: overall timeout + * @tmout_pat: impatience timeout in msecs + * @tmout: overall timeout in msecs * * Sleep until ATA Status register bit BSY clears, * or a timeout occurs. @@ -365,7 +365,7 @@ int ata_sff_busy_sleep(struct ata_port *ap, status = ata_sff_busy_wait(ap, ATA_BUSY, 300); timer_start = jiffies; - timeout = timer_start + tmout_pat; + timeout = ata_deadline(timer_start, tmout_pat); while (status != 0xff && (status & ATA_BUSY) && time_before(jiffies, timeout)) { msleep(50); @@ -377,7 +377,7 @@ int ata_sff_busy_sleep(struct ata_port *ap, "port is slow to respond, please be patient " "(Status 0x%x)\n", status); - timeout = timer_start + tmout; + timeout = ata_deadline(timer_start, tmout); while (status != 0xff && (status & ATA_BUSY) && time_before(jiffies, timeout)) { msleep(50); @@ -390,7 +390,7 @@ int ata_sff_busy_sleep(struct ata_port *ap, if (status & ATA_BUSY) { ata_port_printk(ap, KERN_ERR, "port failed to respond " "(%lu secs, Status 0x%x)\n", - tmout / HZ, status); + DIV_ROUND_UP(tmout, 1000), status); return -EBUSY; } @@ -1876,7 +1876,7 @@ int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask, unsigned int dev1 = devmask & (1 << 1); int rc, ret = 0; - msleep(ATA_WAIT_AFTER_RESET_MSECS); + msleep(ATA_WAIT_AFTER_RESET); /* always check readiness of the master device */ rc = ata_sff_wait_ready(link, deadline); @@ -2359,7 +2359,8 @@ void ata_bus_reset(struct ata_port *ap) /* issue bus reset */ if (ap->flags & ATA_FLAG_SRST) { - rc = ata_bus_softreset(ap, devmask, jiffies + 40 * HZ); + rc = ata_bus_softreset(ap, devmask, + ata_deadline(jiffies, 40000)); if (rc && rc != -ENODEV) goto err_out; } diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 1cf803adbc95..f6f9c28ec7f8 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -151,6 +151,8 @@ extern void ata_scsi_dev_rescan(struct work_struct *work); extern int ata_bus_probe(struct ata_port *ap); /* libata-eh.c */ +extern unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd); +extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd); extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd); extern void ata_scsi_error(struct Scsi_Host *host); extern void ata_port_wait_eh(struct ata_port *ap); diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c index 55516103626a..d3932901a3b3 100644 --- a/drivers/ata/pata_bf54x.c +++ b/drivers/ata/pata_bf54x.c @@ -1011,7 +1011,7 @@ static void bfin_bus_post_reset(struct ata_port *ap, unsigned int devmask) void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr; unsigned int dev0 = devmask & (1 << 0); unsigned int dev1 = devmask & (1 << 1); - unsigned long timeout; + unsigned long deadline; /* if device 0 was found in ata_devchk, wait for its * BSY bit to clear @@ -1022,7 +1022,7 @@ static void bfin_bus_post_reset(struct ata_port *ap, unsigned int devmask) /* if device 1 was found in ata_devchk, wait for * register access, then wait for BSY to clear */ - timeout = jiffies + ATA_TMOUT_BOOT; + deadline = ata_deadline(jiffies, ATA_TMOUT_BOOT); while (dev1) { u8 nsect, lbal; @@ -1031,7 +1031,7 @@ static void bfin_bus_post_reset(struct ata_port *ap, unsigned int devmask) lbal = read_atapi_register(base, ATA_REG_LBAL); if ((nsect == 1) && (lbal == 1)) break; - if (time_after(jiffies, timeout)) { + if (time_after(jiffies, deadline)) { dev1 = 0; break; } diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c index bbf5aa345e68..16673d168573 100644 --- a/drivers/ata/pata_scc.c +++ b/drivers/ata/pata_scc.c @@ -696,7 +696,7 @@ static void scc_bmdma_stop (struct ata_queued_cmd *qc) if (reg & INTSTS_BMSINT) { unsigned int classes; - unsigned long deadline = jiffies + ATA_TMOUT_BOOT; + unsigned long deadline = ata_deadline(jiffies, ATA_TMOUT_BOOT); printk(KERN_WARNING "%s: Internal Bus Error\n", DRV_NAME); out_be32(bmid_base + SCC_DMA_INTST, INTSTS_BMSINT); /* TBD: SW reset */ diff --git a/drivers/base/base.h b/drivers/base/base.h index 2c9ae43e2219..31dc0cd84afa 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -36,6 +36,33 @@ struct driver_private { }; #define to_driver(obj) container_of(obj, struct driver_private, kobj) + +/** + * struct class_private - structure to hold the private to the driver core portions of the class structure. + * + * @class_subsys - the struct kset that defines this class. This is the main kobject + * @class_devices - list of devices associated with this class + * @class_interfaces - list of class_interfaces associated with this class + * @class_dirs - "glue" directory for virtual devices associated with this class + * @class_mutex - mutex to protect the children, devices, and interfaces lists. + * @class - pointer back to the struct class that this structure is associated + * with. + * + * This structure is the one that is the actual kobject allowing struct + * class to be statically allocated safely. Nothing outside of the driver + * core should ever touch these fields. + */ +struct class_private { + struct kset class_subsys; + struct list_head class_devices; + struct list_head class_interfaces; + struct kset class_dirs; + struct mutex class_mutex; + struct class *class; +}; +#define to_class(obj) \ + container_of(obj, struct class_private, class_subsys.kobj) + /* initialisation functions */ extern int devices_init(void); extern int buses_init(void); diff --git a/drivers/base/class.c b/drivers/base/class.c index e085af0ff94f..839d27cecb36 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -18,20 +18,20 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/genhd.h> +#include <linux/mutex.h> #include "base.h" #define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr) -#define to_class(obj) container_of(obj, struct class, subsys.kobj) static ssize_t class_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct class_attribute *class_attr = to_class_attr(attr); - struct class *dc = to_class(kobj); + struct class_private *cp = to_class(kobj); ssize_t ret = -EIO; if (class_attr->show) - ret = class_attr->show(dc, buf); + ret = class_attr->show(cp->class, buf); return ret; } @@ -39,17 +39,18 @@ static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr, const char *buf, size_t count) { struct class_attribute *class_attr = to_class_attr(attr); - struct class *dc = to_class(kobj); + struct class_private *cp = to_class(kobj); ssize_t ret = -EIO; if (class_attr->store) - ret = class_attr->store(dc, buf, count); + ret = class_attr->store(cp->class, buf, count); return ret; } static void class_release(struct kobject *kobj) { - struct class *class = to_class(kobj); + struct class_private *cp = to_class(kobj); + struct class *class = cp->class; pr_debug("class '%s': release.\n", class->name); @@ -70,7 +71,7 @@ static struct kobj_type class_ktype = { .release = class_release, }; -/* Hotplug events for classes go to the class_obj subsys */ +/* Hotplug events for classes go to the class class_subsys */ static struct kset *class_kset; @@ -78,7 +79,8 @@ int class_create_file(struct class *cls, const struct class_attribute *attr) { int error; if (cls) - error = sysfs_create_file(&cls->subsys.kobj, &attr->attr); + error = sysfs_create_file(&cls->p->class_subsys.kobj, + &attr->attr); else error = -EINVAL; return error; @@ -87,21 +89,20 @@ int class_create_file(struct class *cls, const struct class_attribute *attr) void class_remove_file(struct class *cls, const struct class_attribute *attr) { if (cls) - sysfs_remove_file(&cls->subsys.kobj, &attr->attr); + sysfs_remove_file(&cls->p->class_subsys.kobj, &attr->attr); } static struct class *class_get(struct class *cls) { if (cls) - return container_of(kset_get(&cls->subsys), - struct class, subsys); - return NULL; + kset_get(&cls->p->class_subsys); + return cls; } static void class_put(struct class *cls) { if (cls) - kset_put(&cls->subsys); + kset_put(&cls->p->class_subsys); } static int add_class_attrs(struct class *cls) @@ -134,42 +135,57 @@ static void remove_class_attrs(struct class *cls) } } -int class_register(struct class *cls) +int __class_register(struct class *cls, struct lock_class_key *key) { + struct class_private *cp; int error; pr_debug("device class '%s': registering\n", cls->name); - INIT_LIST_HEAD(&cls->devices); - INIT_LIST_HEAD(&cls->interfaces); - kset_init(&cls->class_dirs); - init_MUTEX(&cls->sem); - error = kobject_set_name(&cls->subsys.kobj, "%s", cls->name); - if (error) + cp = kzalloc(sizeof(*cp), GFP_KERNEL); + if (!cp) + return -ENOMEM; + INIT_LIST_HEAD(&cp->class_devices); + INIT_LIST_HEAD(&cp->class_interfaces); + kset_init(&cp->class_dirs); + __mutex_init(&cp->class_mutex, "struct class mutex", key); + error = kobject_set_name(&cp->class_subsys.kobj, "%s", cls->name); + if (error) { + kfree(cp); return error; + } + + /* set the default /sys/dev directory for devices of this class */ + if (!cls->dev_kobj) + cls->dev_kobj = sysfs_dev_char_kobj; #if defined(CONFIG_SYSFS_DEPRECATED) && defined(CONFIG_BLOCK) /* let the block class directory show up in the root of sysfs */ if (cls != &block_class) - cls->subsys.kobj.kset = class_kset; + cp->class_subsys.kobj.kset = class_kset; #else - cls->subsys.kobj.kset = class_kset; + cp->class_subsys.kobj.kset = class_kset; #endif - cls->subsys.kobj.ktype = &class_ktype; + cp->class_subsys.kobj.ktype = &class_ktype; + cp->class = cls; + cls->p = cp; - error = kset_register(&cls->subsys); - if (!error) { - error = add_class_attrs(class_get(cls)); - class_put(cls); + error = kset_register(&cp->class_subsys); + if (error) { + kfree(cp); + return error; } + error = add_class_attrs(class_get(cls)); + class_put(cls); return error; } +EXPORT_SYMBOL_GPL(__class_register); void class_unregister(struct class *cls) { pr_debug("device class '%s': unregistering\n", cls->name); remove_class_attrs(cls); - kset_unregister(&cls->subsys); + kset_unregister(&cls->p->class_subsys); } static void class_create_release(struct class *cls) @@ -189,7 +205,8 @@ static void class_create_release(struct class *cls) * Note, the pointer created here is to be destroyed when finished by * making a call to class_destroy(). */ -struct class *class_create(struct module *owner, const char *name) +struct class *__class_create(struct module *owner, const char *name, + struct lock_class_key *key) { struct class *cls; int retval; @@ -204,7 +221,7 @@ struct class *class_create(struct module *owner, const char *name) cls->owner = owner; cls->class_release = class_create_release; - retval = class_register(cls); + retval = __class_register(cls, key); if (retval) goto error; @@ -214,6 +231,7 @@ error: kfree(cls); return ERR_PTR(retval); } +EXPORT_SYMBOL_GPL(__class_create); /** * class_destroy - destroys a struct class structure @@ -252,39 +270,44 @@ char *make_class_name(const char *name, struct kobject *kobj) /** * class_for_each_device - device iterator * @class: the class we're iterating + * @start: the device to start with in the list, if any. * @data: data for the callback * @fn: function to be called for each device * * Iterate over @class's list of devices, and call @fn for each, - * passing it @data. + * passing it @data. If @start is set, the list iteration will start + * there, otherwise if it is NULL, the iteration starts at the + * beginning of the list. * * We check the return of @fn each time. If it returns anything * other than 0, we break out and return that value. * - * Note, we hold class->sem in this function, so it can not be + * Note, we hold class->class_mutex in this function, so it can not be * re-acquired in @fn, otherwise it will self-deadlocking. For * example, calls to add or remove class members would be verboten. */ -int class_for_each_device(struct class *class, void *data, - int (*fn)(struct device *, void *)) +int class_for_each_device(struct class *class, struct device *start, + void *data, int (*fn)(struct device *, void *)) { struct device *dev; int error = 0; if (!class) return -EINVAL; - down(&class->sem); - list_for_each_entry(dev, &class->devices, node) { + mutex_lock(&class->p->class_mutex); + list_for_each_entry(dev, &class->p->class_devices, node) { + if (start) { + if (start == dev) + start = NULL; + continue; + } dev = get_device(dev); - if (dev) { - error = fn(dev, data); - put_device(dev); - } else - error = -ENODEV; + error = fn(dev, data); + put_device(dev); if (error) break; } - up(&class->sem); + mutex_unlock(&class->p->class_mutex); return error; } @@ -293,6 +316,7 @@ EXPORT_SYMBOL_GPL(class_for_each_device); /** * class_find_device - device iterator for locating a particular device * @class: the class we're iterating + * @start: Device to begin with * @data: data for the match function * @match: function to check device * @@ -306,12 +330,13 @@ EXPORT_SYMBOL_GPL(class_for_each_device); * * Note, you will need to drop the reference with put_device() after use. * - * We hold class->sem in this function, so it can not be + * We hold class->class_mutex in this function, so it can not be * re-acquired in @match, otherwise it will self-deadlocking. For * example, calls to add or remove class members would be verboten. */ -struct device *class_find_device(struct class *class, void *data, - int (*match)(struct device *, void *)) +struct device *class_find_device(struct class *class, struct device *start, + void *data, + int (*match)(struct device *, void *)) { struct device *dev; int found = 0; @@ -319,19 +344,21 @@ struct device *class_find_device(struct class *class, void *data, if (!class) return NULL; - down(&class->sem); - list_for_each_entry(dev, &class->devices, node) { + mutex_lock(&class->p->class_mutex); + list_for_each_entry(dev, &class->p->class_devices, node) { + if (start) { + if (start == dev) + start = NULL; + continue; + } dev = get_device(dev); - if (dev) { - if (match(dev, data)) { - found = 1; - break; - } else - put_device(dev); - } else + if (match(dev, data)) { + found = 1; break; + } else + put_device(dev); } - up(&class->sem); + mutex_unlock(&class->p->class_mutex); return found ? dev : NULL; } @@ -349,13 +376,13 @@ int class_interface_register(struct class_interface *class_intf) if (!parent) return -EINVAL; - down(&parent->sem); - list_add_tail(&class_intf->node, &parent->interfaces); + mutex_lock(&parent->p->class_mutex); + list_add_tail(&class_intf->node, &parent->p->class_interfaces); if (class_intf->add_dev) { - list_for_each_entry(dev, &parent->devices, node) + list_for_each_entry(dev, &parent->p->class_devices, node) class_intf->add_dev(dev, class_intf); } - up(&parent->sem); + mutex_unlock(&parent->p->class_mutex); return 0; } @@ -368,13 +395,13 @@ void class_interface_unregister(struct class_interface *class_intf) if (!parent) return; - down(&parent->sem); + mutex_lock(&parent->p->class_mutex); list_del_init(&class_intf->node); if (class_intf->remove_dev) { - list_for_each_entry(dev, &parent->devices, node) + list_for_each_entry(dev, &parent->p->class_devices, node) class_intf->remove_dev(dev, class_intf); } - up(&parent->sem); + mutex_unlock(&parent->p->class_mutex); class_put(parent); } @@ -389,9 +416,7 @@ int __init classes_init(void) EXPORT_SYMBOL_GPL(class_create_file); EXPORT_SYMBOL_GPL(class_remove_file); -EXPORT_SYMBOL_GPL(class_register); EXPORT_SYMBOL_GPL(class_unregister); -EXPORT_SYMBOL_GPL(class_create); EXPORT_SYMBOL_GPL(class_destroy); EXPORT_SYMBOL_GPL(class_interface_register); diff --git a/drivers/base/core.c b/drivers/base/core.c index ee0a51a3a41d..90621a470abc 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -21,12 +21,16 @@ #include <linux/genhd.h> #include <linux/kallsyms.h> #include <linux/semaphore.h> +#include <linux/mutex.h> #include "base.h" #include "power/power.h" int (*platform_notify)(struct device *dev) = NULL; int (*platform_notify_remove)(struct device *dev) = NULL; +static struct kobject *dev_kobj; +struct kobject *sysfs_dev_char_kobj; +struct kobject *sysfs_dev_block_kobj; #ifdef CONFIG_BLOCK static inline int device_is_not_partition(struct device *dev) @@ -465,6 +469,7 @@ EXPORT_SYMBOL_GPL(device_create_bin_file); */ void device_remove_bin_file(struct device *dev, struct bin_attribute *attr) { + /* might_sleep(); */ if (dev) sysfs_remove_bin_file(&dev->kobj, attr); } @@ -548,7 +553,7 @@ static struct kobject *get_device_parent(struct device *dev, { /* class devices without a parent live in /sys/class/<classname>/ */ if (dev->class && (!parent || parent->class != dev->class)) - return &dev->class->subsys.kobj; + return &dev->class->p->class_subsys.kobj; /* all other devices keep their parent */ else if (parent) return &parent->kobj; @@ -594,13 +599,13 @@ static struct kobject *get_device_parent(struct device *dev, parent_kobj = &parent->kobj; /* find our class-directory at the parent and reference it */ - spin_lock(&dev->class->class_dirs.list_lock); - list_for_each_entry(k, &dev->class->class_dirs.list, entry) + spin_lock(&dev->class->p->class_dirs.list_lock); + list_for_each_entry(k, &dev->class->p->class_dirs.list, entry) if (k->parent == parent_kobj) { kobj = kobject_get(k); break; } - spin_unlock(&dev->class->class_dirs.list_lock); + spin_unlock(&dev->class->p->class_dirs.list_lock); if (kobj) return kobj; @@ -608,7 +613,7 @@ static struct kobject *get_device_parent(struct device *dev, k = kobject_create(); if (!k) return NULL; - k->kset = &dev->class->class_dirs; + k->kset = &dev->class->p->class_dirs; retval = kobject_add(k, parent_kobj, "%s", dev->class->name); if (retval < 0) { kobject_put(k); @@ -627,7 +632,7 @@ static void cleanup_glue_dir(struct device *dev, struct kobject *glue_dir) { /* see if we live in a "glue" directory */ if (!glue_dir || !dev->class || - glue_dir->kset != &dev->class->class_dirs) + glue_dir->kset != &dev->class->p->class_dirs) return; kobject_put(glue_dir); @@ -654,17 +659,18 @@ static int device_add_class_symlinks(struct device *dev) if (!dev->class) return 0; - error = sysfs_create_link(&dev->kobj, &dev->class->subsys.kobj, + error = sysfs_create_link(&dev->kobj, + &dev->class->p->class_subsys.kobj, "subsystem"); if (error) goto out; #ifdef CONFIG_SYSFS_DEPRECATED /* stacked class devices need a symlink in the class directory */ - if (dev->kobj.parent != &dev->class->subsys.kobj && + if (dev->kobj.parent != &dev->class->p->class_subsys.kobj && device_is_not_partition(dev)) { - error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + error = sysfs_create_link(&dev->class->p->class_subsys.kobj, + &dev->kobj, dev->bus_id); if (error) goto out_subsys; } @@ -701,13 +707,14 @@ out_device: if (dev->parent && device_is_not_partition(dev)) sysfs_remove_link(&dev->kobj, "device"); out_busid: - if (dev->kobj.parent != &dev->class->subsys.kobj && + if (dev->kobj.parent != &dev->class->p->class_subsys.kobj && device_is_not_partition(dev)) - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, + dev->bus_id); #else /* link in the class directory pointing to the device */ - error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + error = sysfs_create_link(&dev->class->p->class_subsys.kobj, + &dev->kobj, dev->bus_id); if (error) goto out_subsys; @@ -720,7 +727,7 @@ out_busid: return 0; out_busid: - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev->bus_id); #endif out_subsys: @@ -746,14 +753,15 @@ static void device_remove_class_symlinks(struct device *dev) sysfs_remove_link(&dev->kobj, "device"); } - if (dev->kobj.parent != &dev->class->subsys.kobj && + if (dev->kobj.parent != &dev->class->p->class_subsys.kobj && device_is_not_partition(dev)) - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, + dev->bus_id); #else if (dev->parent && device_is_not_partition(dev)) sysfs_remove_link(&dev->kobj, "device"); - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev->bus_id); #endif sysfs_remove_link(&dev->kobj, "subsystem"); @@ -776,6 +784,54 @@ int dev_set_name(struct device *dev, const char *fmt, ...) EXPORT_SYMBOL_GPL(dev_set_name); /** + * device_to_dev_kobj - select a /sys/dev/ directory for the device + * @dev: device + * + * By default we select char/ for new entries. Setting class->dev_obj + * to NULL prevents an entry from being created. class->dev_kobj must + * be set (or cleared) before any devices are registered to the class + * otherwise device_create_sys_dev_entry() and + * device_remove_sys_dev_entry() will disagree about the the presence + * of the link. + */ +static struct kobject *device_to_dev_kobj(struct device *dev) +{ + struct kobject *kobj; + + if (dev->class) + kobj = dev->class->dev_kobj; + else + kobj = sysfs_dev_char_kobj; + + return kobj; +} + +static int device_create_sys_dev_entry(struct device *dev) +{ + struct kobject *kobj = device_to_dev_kobj(dev); + int error = 0; + char devt_str[15]; + + if (kobj) { + format_dev_t(devt_str, dev->devt); + error = sysfs_create_link(kobj, &dev->kobj, devt_str); + } + + return error; +} + +static void device_remove_sys_dev_entry(struct device *dev) +{ + struct kobject *kobj = device_to_dev_kobj(dev); + char devt_str[15]; + + if (kobj) { + format_dev_t(devt_str, dev->devt); + sysfs_remove_link(kobj, devt_str); + } +} + +/** * device_add - add device to device hierarchy. * @dev: device. * @@ -829,6 +885,10 @@ int device_add(struct device *dev) error = device_create_file(dev, &devt_attr); if (error) goto ueventattrError; + + error = device_create_sys_dev_entry(dev); + if (error) + goto devtattrError; } error = device_add_class_symlinks(dev); @@ -849,15 +909,16 @@ int device_add(struct device *dev) klist_add_tail(&dev->knode_parent, &parent->klist_children); if (dev->class) { - down(&dev->class->sem); + mutex_lock(&dev->class->p->class_mutex); /* tie the class to the device */ - list_add_tail(&dev->node, &dev->class->devices); + list_add_tail(&dev->node, &dev->class->p->class_devices); /* notify any interfaces that the device is here */ - list_for_each_entry(class_intf, &dev->class->interfaces, node) + list_for_each_entry(class_intf, + &dev->class->p->class_interfaces, node) if (class_intf->add_dev) class_intf->add_dev(dev, class_intf); - up(&dev->class->sem); + mutex_unlock(&dev->class->p->class_mutex); } Done: put_device(dev); @@ -873,6 +934,9 @@ int device_add(struct device *dev) device_remove_class_symlinks(dev); SymlinkError: if (MAJOR(dev->devt)) + device_remove_sys_dev_entry(dev); + devtattrError: + if (MAJOR(dev->devt)) device_remove_file(dev, &devt_attr); ueventattrError: device_remove_file(dev, &uevent_attr); @@ -948,19 +1012,22 @@ void device_del(struct device *dev) device_pm_remove(dev); if (parent) klist_del(&dev->knode_parent); - if (MAJOR(dev->devt)) + if (MAJOR(dev->devt)) { + device_remove_sys_dev_entry(dev); device_remove_file(dev, &devt_attr); + } if (dev->class) { device_remove_class_symlinks(dev); - down(&dev->class->sem); + mutex_lock(&dev->class->p->class_mutex); /* notify any interfaces that the device is now gone */ - list_for_each_entry(class_intf, &dev->class->interfaces, node) + list_for_each_entry(class_intf, + &dev->class->p->class_interfaces, node) if (class_intf->remove_dev) class_intf->remove_dev(dev, class_intf); /* remove the device from the class list */ list_del_init(&dev->node); - up(&dev->class->sem); + mutex_unlock(&dev->class->p->class_mutex); } device_remove_file(dev, &uevent_attr); device_remove_attrs(dev); @@ -1074,7 +1141,25 @@ int __init devices_init(void) devices_kset = kset_create_and_add("devices", &device_uevent_ops, NULL); if (!devices_kset) return -ENOMEM; + dev_kobj = kobject_create_and_add("dev", NULL); + if (!dev_kobj) + goto dev_kobj_err; + sysfs_dev_block_kobj = kobject_create_and_add("block", dev_kobj); + if (!sysfs_dev_block_kobj) + goto block_kobj_err; + sysfs_dev_char_kobj = kobject_create_and_add("char", dev_kobj); + if (!sysfs_dev_char_kobj) + goto char_kobj_err; + return 0; + + char_kobj_err: + kobject_put(sysfs_dev_block_kobj); + block_kobj_err: + kobject_put(dev_kobj); + dev_kobj_err: + kset_unregister(devices_kset); + return -ENOMEM; } EXPORT_SYMBOL_GPL(device_for_each_child); @@ -1195,40 +1280,6 @@ struct device *device_create_drvdata(struct class *class, } EXPORT_SYMBOL_GPL(device_create_drvdata); -/** - * device_create - creates a device and registers it with sysfs - * @class: pointer to the struct class that this device should be registered to - * @parent: pointer to the parent struct device of this new device, if any - * @devt: the dev_t for the char device to be added - * @fmt: string for the device's name - * - * This function can be used by char device classes. A struct device - * will be created in sysfs, registered to the specified class. - * - * A "dev" file will be created, showing the dev_t for the device, if - * the dev_t is not 0,0. - * If a pointer to a parent struct device is passed in, the newly created - * struct device will be a child of that device in sysfs. - * The pointer to the struct device will be returned from the call. - * Any further sysfs files that might be required can be created using this - * pointer. - * - * Note: the struct class passed to this function must have previously - * been created with a call to class_create(). - */ -struct device *device_create(struct class *class, struct device *parent, - dev_t devt, const char *fmt, ...) -{ - va_list vargs; - struct device *dev; - - va_start(vargs, fmt); - dev = device_create_vargs(class, parent, devt, NULL, fmt, vargs); - va_end(vargs); - return dev; -} -EXPORT_SYMBOL_GPL(device_create); - static int __match_devt(struct device *dev, void *data) { dev_t *devt = data; @@ -1248,7 +1299,7 @@ void device_destroy(struct class *class, dev_t devt) { struct device *dev; - dev = class_find_device(class, &devt, __match_devt); + dev = class_find_device(class, NULL, &devt, __match_devt); if (dev) { put_device(dev); device_unregister(dev); @@ -1260,6 +1311,11 @@ EXPORT_SYMBOL_GPL(device_destroy); * device_rename - renames a device * @dev: the pointer to the struct device to be renamed * @new_name: the new name of the device + * + * It is the responsibility of the caller to provide mutual + * exclusion between two different calls of device_rename + * on the same device to ensure that new_name is valid and + * won't conflict with other devices. */ int device_rename(struct device *dev, char *new_name) { @@ -1307,11 +1363,12 @@ int device_rename(struct device *dev, char *new_name) } #else if (dev->class) { - error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + error = sysfs_create_link(&dev->class->p->class_subsys.kobj, + &dev->kobj, dev->bus_id); if (error) goto out; - sysfs_remove_link(&dev->class->subsys.kobj, old_device_name); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, + old_device_name); } #endif @@ -1447,4 +1504,7 @@ void device_shutdown(void) dev->driver->shutdown(dev); } } + kobject_put(sysfs_dev_char_kobj); + kobject_put(sysfs_dev_block_kobj); + kobject_put(dev_kobj); } diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index e38dfed41d80..5000402ae092 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -119,14 +119,14 @@ static ssize_t print_cpus_##type(struct sysdev_class *class, char *buf) \ { \ return print_cpus_map(buf, &cpu_##type##_map); \ } \ -struct sysdev_class_attribute attr_##type##_map = \ +static struct sysdev_class_attribute attr_##type##_map = \ _SYSDEV_CLASS_ATTR(type, 0444, print_cpus_##type, NULL) print_cpus_func(online); print_cpus_func(possible); print_cpus_func(present); -struct sysdev_class_attribute *cpu_state_attr[] = { +static struct sysdev_class_attribute *cpu_state_attr[] = { &attr_online_map, &attr_possible_map, &attr_present_map, diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 9fd4a8534146..264b3a2cd860 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -257,7 +257,7 @@ firmware_data_write(struct kobject *kobj, struct bin_attribute *bin_attr, if (retval) goto out; - memcpy(fw->data + offset, buffer, count); + memcpy((u8 *)fw->data + offset, buffer, count); fw->size = max_t(size_t, offset + count, fw->size); retval = count; diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 911ec600fe71..3f940393d6c7 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -453,6 +453,8 @@ int platform_driver_register(struct platform_driver *drv) drv->driver.suspend = platform_drv_suspend; if (drv->resume) drv->driver.resume = platform_drv_resume; + if (drv->pm) + drv->driver.pm = &drv->pm->base; return driver_register(&drv->driver); } EXPORT_SYMBOL_GPL(platform_driver_register); @@ -560,7 +562,9 @@ static int platform_match(struct device *dev, struct device_driver *drv) return (strncmp(pdev->name, drv->name, BUS_ID_SIZE) == 0); } -static int platform_suspend(struct device *dev, pm_message_t mesg) +#ifdef CONFIG_PM_SLEEP + +static int platform_legacy_suspend(struct device *dev, pm_message_t mesg) { int ret = 0; @@ -570,7 +574,7 @@ static int platform_suspend(struct device *dev, pm_message_t mesg) return ret; } -static int platform_suspend_late(struct device *dev, pm_message_t mesg) +static int platform_legacy_suspend_late(struct device *dev, pm_message_t mesg) { struct platform_driver *drv = to_platform_driver(dev->driver); struct platform_device *pdev; @@ -583,7 +587,7 @@ static int platform_suspend_late(struct device *dev, pm_message_t mesg) return ret; } -static int platform_resume_early(struct device *dev) +static int platform_legacy_resume_early(struct device *dev) { struct platform_driver *drv = to_platform_driver(dev->driver); struct platform_device *pdev; @@ -596,7 +600,7 @@ static int platform_resume_early(struct device *dev) return ret; } -static int platform_resume(struct device *dev) +static int platform_legacy_resume(struct device *dev) { int ret = 0; @@ -606,15 +610,291 @@ static int platform_resume(struct device *dev) return ret; } +static int platform_pm_prepare(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int ret = 0; + + if (drv && drv->pm && drv->pm->prepare) + ret = drv->pm->prepare(dev); + + return ret; +} + +static void platform_pm_complete(struct device *dev) +{ + struct device_driver *drv = dev->driver; + + if (drv && drv->pm && drv->pm->complete) + drv->pm->complete(dev); +} + +#ifdef CONFIG_SUSPEND + +static int platform_pm_suspend(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int ret = 0; + + if (drv && drv->pm) { + if (drv->pm->suspend) + ret = drv->pm->suspend(dev); + } else { + ret = platform_legacy_suspend(dev, PMSG_SUSPEND); + } + + return ret; +} + +static int platform_pm_suspend_noirq(struct device *dev) +{ + struct platform_driver *pdrv; + int ret = 0; + + if (!dev->driver) + return 0; + + pdrv = to_platform_driver(dev->driver); + if (pdrv->pm) { + if (pdrv->pm->suspend_noirq) + ret = pdrv->pm->suspend_noirq(dev); + } else { + ret = platform_legacy_suspend_late(dev, PMSG_SUSPEND); + } + + return ret; +} + +static int platform_pm_resume(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int ret = 0; + + if (drv && drv->pm) { + if (drv->pm->resume) + ret = drv->pm->resume(dev); + } else { + ret = platform_legacy_resume(dev); + } + + return ret; +} + +static int platform_pm_resume_noirq(struct device *dev) +{ + struct platform_driver *pdrv; + int ret = 0; + + if (!dev->driver) + return 0; + + pdrv = to_platform_driver(dev->driver); + if (pdrv->pm) { + if (pdrv->pm->resume_noirq) + ret = pdrv->pm->resume_noirq(dev); + } else { + ret = platform_legacy_resume_early(dev); + } + + return ret; +} + +#else /* !CONFIG_SUSPEND */ + +#define platform_pm_suspend NULL +#define platform_pm_resume NULL +#define platform_pm_suspend_noirq NULL +#define platform_pm_resume_noirq NULL + +#endif /* !CONFIG_SUSPEND */ + +#ifdef CONFIG_HIBERNATION + +static int platform_pm_freeze(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int ret = 0; + + if (!drv) + return 0; + + if (drv->pm) { + if (drv->pm->freeze) + ret = drv->pm->freeze(dev); + } else { + ret = platform_legacy_suspend(dev, PMSG_FREEZE); + } + + return ret; +} + +static int platform_pm_freeze_noirq(struct device *dev) +{ + struct platform_driver *pdrv; + int ret = 0; + + if (!dev->driver) + return 0; + + pdrv = to_platform_driver(dev->driver); + if (pdrv->pm) { + if (pdrv->pm->freeze_noirq) + ret = pdrv->pm->freeze_noirq(dev); + } else { + ret = platform_legacy_suspend_late(dev, PMSG_FREEZE); + } + + return ret; +} + +static int platform_pm_thaw(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int ret = 0; + + if (drv && drv->pm) { + if (drv->pm->thaw) + ret = drv->pm->thaw(dev); + } else { + ret = platform_legacy_resume(dev); + } + + return ret; +} + +static int platform_pm_thaw_noirq(struct device *dev) +{ + struct platform_driver *pdrv; + int ret = 0; + + if (!dev->driver) + return 0; + + pdrv = to_platform_driver(dev->driver); + if (pdrv->pm) { + if (pdrv->pm->thaw_noirq) + ret = pdrv->pm->thaw_noirq(dev); + } else { + ret = platform_legacy_resume_early(dev); + } + + return ret; +} + +static int platform_pm_poweroff(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int ret = 0; + + if (drv && drv->pm) { + if (drv->pm->poweroff) + ret = drv->pm->poweroff(dev); + } else { + ret = platform_legacy_suspend(dev, PMSG_HIBERNATE); + } + + return ret; +} + +static int platform_pm_poweroff_noirq(struct device *dev) +{ + struct platform_driver *pdrv; + int ret = 0; + + if (!dev->driver) + return 0; + + pdrv = to_platform_driver(dev->driver); + if (pdrv->pm) { + if (pdrv->pm->poweroff_noirq) + ret = pdrv->pm->poweroff_noirq(dev); + } else { + ret = platform_legacy_suspend_late(dev, PMSG_HIBERNATE); + } + + return ret; +} + +static int platform_pm_restore(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int ret = 0; + + if (drv && drv->pm) { + if (drv->pm->restore) + ret = drv->pm->restore(dev); + } else { + ret = platform_legacy_resume(dev); + } + + return ret; +} + +static int platform_pm_restore_noirq(struct device *dev) +{ + struct platform_driver *pdrv; + int ret = 0; + + if (!dev->driver) + return 0; + + pdrv = to_platform_driver(dev->driver); + if (pdrv->pm) { + if (pdrv->pm->restore_noirq) + ret = pdrv->pm->restore_noirq(dev); + } else { + ret = platform_legacy_resume_early(dev); + } + + return ret; +} + +#else /* !CONFIG_HIBERNATION */ + +#define platform_pm_freeze NULL +#define platform_pm_thaw NULL +#define platform_pm_poweroff NULL +#define platform_pm_restore NULL +#define platform_pm_freeze_noirq NULL +#define platform_pm_thaw_noirq NULL +#define platform_pm_poweroff_noirq NULL +#define platform_pm_restore_noirq NULL + +#endif /* !CONFIG_HIBERNATION */ + +struct pm_ext_ops platform_pm_ops = { + .base = { + .prepare = platform_pm_prepare, + .complete = platform_pm_complete, + .suspend = platform_pm_suspend, + .resume = platform_pm_resume, + .freeze = platform_pm_freeze, + .thaw = platform_pm_thaw, + .poweroff = platform_pm_poweroff, + .restore = platform_pm_restore, + }, + .suspend_noirq = platform_pm_suspend_noirq, + .resume_noirq = platform_pm_resume_noirq, + .freeze_noirq = platform_pm_freeze_noirq, + .thaw_noirq = platform_pm_thaw_noirq, + .poweroff_noirq = platform_pm_poweroff_noirq, + .restore_noirq = platform_pm_restore_noirq, +}; + +#define PLATFORM_PM_OPS_PTR &platform_pm_ops + +#else /* !CONFIG_PM_SLEEP */ + +#define PLATFORM_PM_OPS_PTR NULL + +#endif /* !CONFIG_PM_SLEEP */ + struct bus_type platform_bus_type = { .name = "platform", .dev_attrs = platform_dev_attrs, .match = platform_match, .uevent = platform_uevent, - .suspend = platform_suspend, - .suspend_late = platform_suspend_late, - .resume_early = platform_resume_early, - .resume = platform_resume, + .pm = PLATFORM_PM_OPS_PTR, }; EXPORT_SYMBOL_GPL(platform_bus_type); diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 45cc3d9eacb8..3250c5257b74 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -12,11 +12,9 @@ * and add it to the list of power-controlled devices. sysfs entries for * controlling device power management will also be added. * - * A different set of lists than the global subsystem list are used to - * keep track of power info because we use different lists to hold - * devices based on what stage of the power management process they - * are in. The power domain dependencies may also differ from the - * ancestral dependencies that the subsystem list maintains. + * A separate list is used for keeping track of power info, because the power + * domain dependencies may differ from the ancestral dependencies that the + * subsystem list maintains. */ #include <linux/device.h> @@ -30,31 +28,40 @@ #include "power.h" /* - * The entries in the dpm_active list are in a depth first order, simply + * The entries in the dpm_list list are in a depth first order, simply * because children are guaranteed to be discovered after parents, and * are inserted at the back of the list on discovery. * - * All the other lists are kept in the same order, for consistency. - * However the lists aren't always traversed in the same order. - * Semaphores must be acquired from the top (i.e., front) down - * and released in the opposite order. Devices must be suspended - * from the bottom (i.e., end) up and resumed in the opposite order. - * That way no parent will be suspended while it still has an active - * child. - * * Since device_pm_add() may be called with a device semaphore held, * we must never try to acquire a device semaphore while holding * dpm_list_mutex. */ -LIST_HEAD(dpm_active); -static LIST_HEAD(dpm_off); -static LIST_HEAD(dpm_off_irq); +LIST_HEAD(dpm_list); static DEFINE_MUTEX(dpm_list_mtx); -/* 'true' if all devices have been suspended, protected by dpm_list_mtx */ -static bool all_sleeping; +/* + * Set once the preparation of devices for a PM transition has started, reset + * before starting to resume devices. Protected by dpm_list_mtx. + */ +static bool transition_started; + +/** + * device_pm_lock - lock the list of active devices used by the PM core + */ +void device_pm_lock(void) +{ + mutex_lock(&dpm_list_mtx); +} + +/** + * device_pm_unlock - unlock the list of active devices used by the PM core + */ +void device_pm_unlock(void) +{ + mutex_unlock(&dpm_list_mtx); +} /** * device_pm_add - add a device to the list of active devices @@ -68,17 +75,25 @@ int device_pm_add(struct device *dev) dev->bus ? dev->bus->name : "No Bus", kobject_name(&dev->kobj)); mutex_lock(&dpm_list_mtx); - if ((dev->parent && dev->parent->power.sleeping) || all_sleeping) { - if (dev->parent->power.sleeping) - dev_warn(dev, "parent %s is sleeping\n", + if (dev->parent) { + if (dev->parent->power.status >= DPM_SUSPENDING) { + dev_warn(dev, "parent %s is sleeping, will not add\n", dev->parent->bus_id); - else - dev_warn(dev, "all devices are sleeping\n"); + WARN_ON(true); + } + } else if (transition_started) { + /* + * We refuse to register parentless devices while a PM + * transition is in progress in order to avoid leaving them + * unhandled down the road + */ WARN_ON(true); } error = dpm_sysfs_add(dev); - if (!error) - list_add_tail(&dev->power.entry, &dpm_active); + if (!error) { + dev->power.status = DPM_ON; + list_add_tail(&dev->power.entry, &dpm_list); + } mutex_unlock(&dpm_list_mtx); return error; } @@ -100,73 +115,243 @@ void device_pm_remove(struct device *dev) mutex_unlock(&dpm_list_mtx); } +/** + * pm_op - execute the PM operation appropiate for given PM event + * @dev: Device. + * @ops: PM operations to choose from. + * @state: PM transition of the system being carried out. + */ +static int pm_op(struct device *dev, struct pm_ops *ops, pm_message_t state) +{ + int error = 0; + + switch (state.event) { +#ifdef CONFIG_SUSPEND + case PM_EVENT_SUSPEND: + if (ops->suspend) { + error = ops->suspend(dev); + suspend_report_result(ops->suspend, error); + } + break; + case PM_EVENT_RESUME: + if (ops->resume) { + error = ops->resume(dev); + suspend_report_result(ops->resume, error); + } + break; +#endif /* CONFIG_SUSPEND */ +#ifdef CONFIG_HIBERNATION + case PM_EVENT_FREEZE: + case PM_EVENT_QUIESCE: + if (ops->freeze) { + error = ops->freeze(dev); + suspend_report_result(ops->freeze, error); + } + break; + case PM_EVENT_HIBERNATE: + if (ops->poweroff) { + error = ops->poweroff(dev); + suspend_report_result(ops->poweroff, error); + } + break; + case PM_EVENT_THAW: + case PM_EVENT_RECOVER: + if (ops->thaw) { + error = ops->thaw(dev); + suspend_report_result(ops->thaw, error); + } + break; + case PM_EVENT_RESTORE: + if (ops->restore) { + error = ops->restore(dev); + suspend_report_result(ops->restore, error); + } + break; +#endif /* CONFIG_HIBERNATION */ + default: + error = -EINVAL; + } + return error; +} + +/** + * pm_noirq_op - execute the PM operation appropiate for given PM event + * @dev: Device. + * @ops: PM operations to choose from. + * @state: PM transition of the system being carried out. + * + * The operation is executed with interrupts disabled by the only remaining + * functional CPU in the system. + */ +static int pm_noirq_op(struct device *dev, struct pm_ext_ops *ops, + pm_message_t state) +{ + int error = 0; + + switch (state.event) { +#ifdef CONFIG_SUSPEND + case PM_EVENT_SUSPEND: + if (ops->suspend_noirq) { + error = ops->suspend_noirq(dev); + suspend_report_result(ops->suspend_noirq, error); + } + break; + case PM_EVENT_RESUME: + if (ops->resume_noirq) { + error = ops->resume_noirq(dev); + suspend_report_result(ops->resume_noirq, error); + } + break; +#endif /* CONFIG_SUSPEND */ +#ifdef CONFIG_HIBERNATION + case PM_EVENT_FREEZE: + case PM_EVENT_QUIESCE: + if (ops->freeze_noirq) { + error = ops->freeze_noirq(dev); + suspend_report_result(ops->freeze_noirq, error); + } + break; + case PM_EVENT_HIBERNATE: + if (ops->poweroff_noirq) { + error = ops->poweroff_noirq(dev); + suspend_report_result(ops->poweroff_noirq, error); + } + break; + case PM_EVENT_THAW: + case PM_EVENT_RECOVER: + if (ops->thaw_noirq) { + error = ops->thaw_noirq(dev); + suspend_report_result(ops->thaw_noirq, error); + } + break; + case PM_EVENT_RESTORE: + if (ops->restore_noirq) { + error = ops->restore_noirq(dev); + suspend_report_result(ops->restore_noirq, error); + } + break; +#endif /* CONFIG_HIBERNATION */ + default: + error = -EINVAL; + } + return error; +} + +static char *pm_verb(int event) +{ + switch (event) { + case PM_EVENT_SUSPEND: + return "suspend"; + case PM_EVENT_RESUME: + return "resume"; + case PM_EVENT_FREEZE: + return "freeze"; + case PM_EVENT_QUIESCE: + return "quiesce"; + case PM_EVENT_HIBERNATE: + return "hibernate"; + case PM_EVENT_THAW: + return "thaw"; + case PM_EVENT_RESTORE: + return "restore"; + case PM_EVENT_RECOVER: + return "recover"; + default: + return "(unknown PM event)"; + } +} + +static void pm_dev_dbg(struct device *dev, pm_message_t state, char *info) +{ + dev_dbg(dev, "%s%s%s\n", info, pm_verb(state.event), + ((state.event & PM_EVENT_SLEEP) && device_may_wakeup(dev)) ? + ", may wakeup" : ""); +} + +static void pm_dev_err(struct device *dev, pm_message_t state, char *info, + int error) +{ + printk(KERN_ERR "PM: Device %s failed to %s%s: error %d\n", + kobject_name(&dev->kobj), pm_verb(state.event), info, error); +} + /*------------------------- Resume routines -------------------------*/ /** - * resume_device_early - Power on one device (early resume). + * resume_device_noirq - Power on one device (early resume). * @dev: Device. + * @state: PM transition of the system being carried out. * * Must be called with interrupts disabled. */ -static int resume_device_early(struct device *dev) +static int resume_device_noirq(struct device *dev, pm_message_t state) { int error = 0; TRACE_DEVICE(dev); TRACE_RESUME(0); - if (dev->bus && dev->bus->resume_early) { - dev_dbg(dev, "EARLY resume\n"); + if (!dev->bus) + goto End; + + if (dev->bus->pm) { + pm_dev_dbg(dev, state, "EARLY "); + error = pm_noirq_op(dev, dev->bus->pm, state); + } else if (dev->bus->resume_early) { + pm_dev_dbg(dev, state, "legacy EARLY "); error = dev->bus->resume_early(dev); } - + End: TRACE_RESUME(error); return error; } /** * dpm_power_up - Power on all regular (non-sysdev) devices. + * @state: PM transition of the system being carried out. * - * Walk the dpm_off_irq list and power each device up. This - * is used for devices that required they be powered down with - * interrupts disabled. As devices are powered on, they are moved - * to the dpm_off list. + * Execute the appropriate "noirq resume" callback for all devices marked + * as DPM_OFF_IRQ. * * Must be called with interrupts disabled and only one CPU running. */ -static void dpm_power_up(void) +static void dpm_power_up(pm_message_t state) { + struct device *dev; - while (!list_empty(&dpm_off_irq)) { - struct list_head *entry = dpm_off_irq.next; - struct device *dev = to_device(entry); + list_for_each_entry(dev, &dpm_list, power.entry) + if (dev->power.status > DPM_OFF) { + int error; - list_move_tail(entry, &dpm_off); - resume_device_early(dev); - } + dev->power.status = DPM_OFF; + error = resume_device_noirq(dev, state); + if (error) + pm_dev_err(dev, state, " early", error); + } } /** * device_power_up - Turn on all devices that need special attention. + * @state: PM transition of the system being carried out. * * Power on system devices, then devices that required we shut them down * with interrupts disabled. * * Must be called with interrupts disabled. */ -void device_power_up(void) +void device_power_up(pm_message_t state) { sysdev_resume(); - dpm_power_up(); + dpm_power_up(state); } EXPORT_SYMBOL_GPL(device_power_up); /** * resume_device - Restore state for one device. * @dev: Device. - * + * @state: PM transition of the system being carried out. */ -static int resume_device(struct device *dev) +static int resume_device(struct device *dev, pm_message_t state) { int error = 0; @@ -175,21 +360,40 @@ static int resume_device(struct device *dev) down(&dev->sem); - if (dev->bus && dev->bus->resume) { - dev_dbg(dev,"resuming\n"); - error = dev->bus->resume(dev); + if (dev->bus) { + if (dev->bus->pm) { + pm_dev_dbg(dev, state, ""); + error = pm_op(dev, &dev->bus->pm->base, state); + } else if (dev->bus->resume) { + pm_dev_dbg(dev, state, "legacy "); + error = dev->bus->resume(dev); + } + if (error) + goto End; } - if (!error && dev->type && dev->type->resume) { - dev_dbg(dev,"resuming\n"); - error = dev->type->resume(dev); + if (dev->type) { + if (dev->type->pm) { + pm_dev_dbg(dev, state, "type "); + error = pm_op(dev, dev->type->pm, state); + } else if (dev->type->resume) { + pm_dev_dbg(dev, state, "legacy type "); + error = dev->type->resume(dev); + } + if (error) + goto End; } - if (!error && dev->class && dev->class->resume) { - dev_dbg(dev,"class resume\n"); - error = dev->class->resume(dev); + if (dev->class) { + if (dev->class->pm) { + pm_dev_dbg(dev, state, "class "); + error = pm_op(dev, dev->class->pm, state); + } else if (dev->class->resume) { + pm_dev_dbg(dev, state, "legacy class "); + error = dev->class->resume(dev); + } } - + End: up(&dev->sem); TRACE_RESUME(error); @@ -198,78 +402,161 @@ static int resume_device(struct device *dev) /** * dpm_resume - Resume every device. + * @state: PM transition of the system being carried out. * - * Resume the devices that have either not gone through - * the late suspend, or that did go through it but also - * went through the early resume. + * Execute the appropriate "resume" callback for all devices the status of + * which indicates that they are inactive. + */ +static void dpm_resume(pm_message_t state) +{ + struct list_head list; + + INIT_LIST_HEAD(&list); + mutex_lock(&dpm_list_mtx); + transition_started = false; + while (!list_empty(&dpm_list)) { + struct device *dev = to_device(dpm_list.next); + + get_device(dev); + if (dev->power.status >= DPM_OFF) { + int error; + + dev->power.status = DPM_RESUMING; + mutex_unlock(&dpm_list_mtx); + + error = resume_device(dev, state); + + mutex_lock(&dpm_list_mtx); + if (error) + pm_dev_err(dev, state, "", error); + } else if (dev->power.status == DPM_SUSPENDING) { + /* Allow new children of the device to be registered */ + dev->power.status = DPM_RESUMING; + } + if (!list_empty(&dev->power.entry)) + list_move_tail(&dev->power.entry, &list); + put_device(dev); + } + list_splice(&list, &dpm_list); + mutex_unlock(&dpm_list_mtx); +} + +/** + * complete_device - Complete a PM transition for given device + * @dev: Device. + * @state: PM transition of the system being carried out. + */ +static void complete_device(struct device *dev, pm_message_t state) +{ + down(&dev->sem); + + if (dev->class && dev->class->pm && dev->class->pm->complete) { + pm_dev_dbg(dev, state, "completing class "); + dev->class->pm->complete(dev); + } + + if (dev->type && dev->type->pm && dev->type->pm->complete) { + pm_dev_dbg(dev, state, "completing type "); + dev->type->pm->complete(dev); + } + + if (dev->bus && dev->bus->pm && dev->bus->pm->base.complete) { + pm_dev_dbg(dev, state, "completing "); + dev->bus->pm->base.complete(dev); + } + + up(&dev->sem); +} + +/** + * dpm_complete - Complete a PM transition for all devices. + * @state: PM transition of the system being carried out. * - * Take devices from the dpm_off_list, resume them, - * and put them on the dpm_locked list. + * Execute the ->complete() callbacks for all devices that are not marked + * as DPM_ON. */ -static void dpm_resume(void) +static void dpm_complete(pm_message_t state) { + struct list_head list; + + INIT_LIST_HEAD(&list); mutex_lock(&dpm_list_mtx); - all_sleeping = false; - while(!list_empty(&dpm_off)) { - struct list_head *entry = dpm_off.next; - struct device *dev = to_device(entry); + while (!list_empty(&dpm_list)) { + struct device *dev = to_device(dpm_list.prev); - list_move_tail(entry, &dpm_active); - dev->power.sleeping = false; - mutex_unlock(&dpm_list_mtx); - resume_device(dev); - mutex_lock(&dpm_list_mtx); + get_device(dev); + if (dev->power.status > DPM_ON) { + dev->power.status = DPM_ON; + mutex_unlock(&dpm_list_mtx); + + complete_device(dev, state); + + mutex_lock(&dpm_list_mtx); + } + if (!list_empty(&dev->power.entry)) + list_move(&dev->power.entry, &list); + put_device(dev); } + list_splice(&list, &dpm_list); mutex_unlock(&dpm_list_mtx); } /** * device_resume - Restore state of each device in system. + * @state: PM transition of the system being carried out. * * Resume all the devices, unlock them all, and allow new * devices to be registered once again. */ -void device_resume(void) +void device_resume(pm_message_t state) { might_sleep(); - dpm_resume(); + dpm_resume(state); + dpm_complete(state); } EXPORT_SYMBOL_GPL(device_resume); /*------------------------- Suspend routines -------------------------*/ -static inline char *suspend_verb(u32 event) +/** + * resume_event - return a PM message representing the resume event + * corresponding to given sleep state. + * @sleep_state: PM message representing a sleep state. + */ +static pm_message_t resume_event(pm_message_t sleep_state) { - switch (event) { - case PM_EVENT_SUSPEND: return "suspend"; - case PM_EVENT_FREEZE: return "freeze"; - case PM_EVENT_PRETHAW: return "prethaw"; - default: return "(unknown suspend event)"; + switch (sleep_state.event) { + case PM_EVENT_SUSPEND: + return PMSG_RESUME; + case PM_EVENT_FREEZE: + case PM_EVENT_QUIESCE: + return PMSG_RECOVER; + case PM_EVENT_HIBERNATE: + return PMSG_RESTORE; } -} - -static void -suspend_device_dbg(struct device *dev, pm_message_t state, char *info) -{ - dev_dbg(dev, "%s%s%s\n", info, suspend_verb(state.event), - ((state.event == PM_EVENT_SUSPEND) && device_may_wakeup(dev)) ? - ", may wakeup" : ""); + return PMSG_ON; } /** - * suspend_device_late - Shut down one device (late suspend). + * suspend_device_noirq - Shut down one device (late suspend). * @dev: Device. - * @state: Power state device is entering. + * @state: PM transition of the system being carried out. * * This is called with interrupts off and only a single CPU running. */ -static int suspend_device_late(struct device *dev, pm_message_t state) +static int suspend_device_noirq(struct device *dev, pm_message_t state) { int error = 0; - if (dev->bus && dev->bus->suspend_late) { - suspend_device_dbg(dev, state, "LATE "); + if (!dev->bus) + return 0; + + if (dev->bus->pm) { + pm_dev_dbg(dev, state, "LATE "); + error = pm_noirq_op(dev, dev->bus->pm, state); + } else if (dev->bus->suspend_late) { + pm_dev_dbg(dev, state, "legacy LATE "); error = dev->bus->suspend_late(dev, state); suspend_report_result(dev->bus->suspend_late, error); } @@ -278,37 +565,30 @@ static int suspend_device_late(struct device *dev, pm_message_t state) /** * device_power_down - Shut down special devices. - * @state: Power state to enter. + * @state: PM transition of the system being carried out. * - * Power down devices that require interrupts to be disabled - * and move them from the dpm_off list to the dpm_off_irq list. + * Power down devices that require interrupts to be disabled. * Then power down system devices. * * Must be called with interrupts disabled and only one CPU running. */ int device_power_down(pm_message_t state) { + struct device *dev; int error = 0; - while (!list_empty(&dpm_off)) { - struct list_head *entry = dpm_off.prev; - struct device *dev = to_device(entry); - - error = suspend_device_late(dev, state); + list_for_each_entry_reverse(dev, &dpm_list, power.entry) { + error = suspend_device_noirq(dev, state); if (error) { - printk(KERN_ERR "Could not power down device %s: " - "error %d\n", - kobject_name(&dev->kobj), error); + pm_dev_err(dev, state, " late", error); break; } - if (!list_empty(&dev->power.entry)) - list_move(&dev->power.entry, &dpm_off_irq); + dev->power.status = DPM_OFF_IRQ; } - if (!error) error = sysdev_suspend(state); if (error) - dpm_power_up(); + dpm_power_up(resume_event(state)); return error; } EXPORT_SYMBOL_GPL(device_power_down); @@ -316,7 +596,7 @@ EXPORT_SYMBOL_GPL(device_power_down); /** * suspend_device - Save state of one device. * @dev: Device. - * @state: Power state device is entering. + * @state: PM transition of the system being carried out. */ static int suspend_device(struct device *dev, pm_message_t state) { @@ -324,24 +604,43 @@ static int suspend_device(struct device *dev, pm_message_t state) down(&dev->sem); - if (dev->class && dev->class->suspend) { - suspend_device_dbg(dev, state, "class "); - error = dev->class->suspend(dev, state); - suspend_report_result(dev->class->suspend, error); + if (dev->class) { + if (dev->class->pm) { + pm_dev_dbg(dev, state, "class "); + error = pm_op(dev, dev->class->pm, state); + } else if (dev->class->suspend) { + pm_dev_dbg(dev, state, "legacy class "); + error = dev->class->suspend(dev, state); + suspend_report_result(dev->class->suspend, error); + } + if (error) + goto End; } - if (!error && dev->type && dev->type->suspend) { - suspend_device_dbg(dev, state, "type "); - error = dev->type->suspend(dev, state); - suspend_report_result(dev->type->suspend, error); + if (dev->type) { + if (dev->type->pm) { + pm_dev_dbg(dev, state, "type "); + error = pm_op(dev, dev->type->pm, state); + } else if (dev->type->suspend) { + pm_dev_dbg(dev, state, "legacy type "); + error = dev->type->suspend(dev, state); + suspend_report_result(dev->type->suspend, error); + } + if (error) + goto End; } - if (!error && dev->bus && dev->bus->suspend) { - suspend_device_dbg(dev, state, ""); - error = dev->bus->suspend(dev, state); - suspend_report_result(dev->bus->suspend, error); + if (dev->bus) { + if (dev->bus->pm) { + pm_dev_dbg(dev, state, ""); + error = pm_op(dev, &dev->bus->pm->base, state); + } else if (dev->bus->suspend) { + pm_dev_dbg(dev, state, "legacy "); + error = dev->bus->suspend(dev, state); + suspend_report_result(dev->bus->suspend, error); + } } - + End: up(&dev->sem); return error; @@ -349,67 +648,139 @@ static int suspend_device(struct device *dev, pm_message_t state) /** * dpm_suspend - Suspend every device. - * @state: Power state to put each device in. - * - * Walk the dpm_locked list. Suspend each device and move it - * to the dpm_off list. + * @state: PM transition of the system being carried out. * - * (For historical reasons, if it returns -EAGAIN, that used to mean - * that the device would be called again with interrupts disabled. - * These days, we use the "suspend_late()" callback for that, so we - * print a warning and consider it an error). + * Execute the appropriate "suspend" callbacks for all devices. */ static int dpm_suspend(pm_message_t state) { + struct list_head list; int error = 0; + INIT_LIST_HEAD(&list); mutex_lock(&dpm_list_mtx); - while (!list_empty(&dpm_active)) { - struct list_head *entry = dpm_active.prev; - struct device *dev = to_device(entry); + while (!list_empty(&dpm_list)) { + struct device *dev = to_device(dpm_list.prev); - WARN_ON(dev->parent && dev->parent->power.sleeping); - - dev->power.sleeping = true; + get_device(dev); mutex_unlock(&dpm_list_mtx); + error = suspend_device(dev, state); + mutex_lock(&dpm_list_mtx); if (error) { - printk(KERN_ERR "Could not suspend device %s: " - "error %d%s\n", - kobject_name(&dev->kobj), - error, - (error == -EAGAIN ? - " (please convert to suspend_late)" : - "")); - dev->power.sleeping = false; + pm_dev_err(dev, state, "", error); + put_device(dev); break; } + dev->power.status = DPM_OFF; if (!list_empty(&dev->power.entry)) - list_move(&dev->power.entry, &dpm_off); + list_move(&dev->power.entry, &list); + put_device(dev); } - if (!error) - all_sleeping = true; + list_splice(&list, dpm_list.prev); mutex_unlock(&dpm_list_mtx); + return error; +} + +/** + * prepare_device - Execute the ->prepare() callback(s) for given device. + * @dev: Device. + * @state: PM transition of the system being carried out. + */ +static int prepare_device(struct device *dev, pm_message_t state) +{ + int error = 0; + + down(&dev->sem); + + if (dev->bus && dev->bus->pm && dev->bus->pm->base.prepare) { + pm_dev_dbg(dev, state, "preparing "); + error = dev->bus->pm->base.prepare(dev); + suspend_report_result(dev->bus->pm->base.prepare, error); + if (error) + goto End; + } + + if (dev->type && dev->type->pm && dev->type->pm->prepare) { + pm_dev_dbg(dev, state, "preparing type "); + error = dev->type->pm->prepare(dev); + suspend_report_result(dev->type->pm->prepare, error); + if (error) + goto End; + } + + if (dev->class && dev->class->pm && dev->class->pm->prepare) { + pm_dev_dbg(dev, state, "preparing class "); + error = dev->class->pm->prepare(dev); + suspend_report_result(dev->class->pm->prepare, error); + } + End: + up(&dev->sem); + + return error; +} + +/** + * dpm_prepare - Prepare all devices for a PM transition. + * @state: PM transition of the system being carried out. + * + * Execute the ->prepare() callback for all devices. + */ +static int dpm_prepare(pm_message_t state) +{ + struct list_head list; + int error = 0; + + INIT_LIST_HEAD(&list); + mutex_lock(&dpm_list_mtx); + transition_started = true; + while (!list_empty(&dpm_list)) { + struct device *dev = to_device(dpm_list.next); + + get_device(dev); + dev->power.status = DPM_PREPARING; + mutex_unlock(&dpm_list_mtx); + error = prepare_device(dev, state); + + mutex_lock(&dpm_list_mtx); + if (error) { + dev->power.status = DPM_ON; + if (error == -EAGAIN) { + put_device(dev); + continue; + } + printk(KERN_ERR "PM: Failed to prepare device %s " + "for power transition: error %d\n", + kobject_name(&dev->kobj), error); + put_device(dev); + break; + } + dev->power.status = DPM_SUSPENDING; + if (!list_empty(&dev->power.entry)) + list_move_tail(&dev->power.entry, &list); + put_device(dev); + } + list_splice(&list, &dpm_list); + mutex_unlock(&dpm_list_mtx); return error; } /** * device_suspend - Save state and stop all devices in system. - * @state: new power management state + * @state: PM transition of the system being carried out. * - * Prevent new devices from being registered, then lock all devices - * and suspend them. + * Prepare and suspend all devices. */ int device_suspend(pm_message_t state) { int error; might_sleep(); - error = dpm_suspend(state); - if (error) - device_resume(); + error = dpm_prepare(state); + if (!error) + error = dpm_suspend(state); return error; } EXPORT_SYMBOL_GPL(device_suspend); diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h index a6894f2a4b99..a3252c0e2887 100644 --- a/drivers/base/power/power.h +++ b/drivers/base/power/power.h @@ -4,7 +4,7 @@ * main.c */ -extern struct list_head dpm_active; /* The active device list */ +extern struct list_head dpm_list; /* The active device list */ static inline struct device *to_device(struct list_head *entry) { diff --git a/drivers/base/power/trace.c b/drivers/base/power/trace.c index 2b4b392dcbc1..2aa6e8fc4def 100644 --- a/drivers/base/power/trace.c +++ b/drivers/base/power/trace.c @@ -153,7 +153,7 @@ EXPORT_SYMBOL(set_trace_device); * it's not any guarantee, but it's a high _likelihood_ that * the match is valid). */ -void generate_resume_trace(void *tracedata, unsigned int user) +void generate_resume_trace(const void *tracedata, unsigned int user) { unsigned short lineno = *(unsigned short *)tracedata; const char *file = *(const char **)(tracedata + 2); @@ -188,13 +188,13 @@ static int show_file_hash(unsigned int value) static int show_dev_hash(unsigned int value) { int match = 0; - struct list_head * entry = dpm_active.prev; + struct list_head *entry = dpm_list.prev; - while (entry != &dpm_active) { + while (entry != &dpm_list) { struct device * dev = to_device(entry); unsigned int hash = hash_string(DEVSEED, dev->bus_id, DEVHASH); if (hash == value) { - printk(" hash matches device %s\n", dev->bus_id); + dev_info(dev, "hash matches\n"); match++; } entry = entry->prev; diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 358bb0be3c08..50690d9df248 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -130,8 +130,8 @@ static struct kset *system_kset; int sysdev_class_register(struct sysdev_class * cls) { - pr_debug("Registering sysdev class '%s'\n", - kobject_name(&cls->kset.kobj)); + pr_debug("Registering sysdev class '%s'\n", cls->name); + INIT_LIST_HEAD(&cls->drivers); memset(&cls->kset.kobj, 0x00, sizeof(struct kobject)); cls->kset.kobj.parent = &system_kset->kobj; @@ -241,7 +241,8 @@ int sysdev_register(struct sys_device * sysdev) if (!cls) return -EINVAL; - pr_debug("Registering sys device '%s'\n", kobject_name(&sysdev->kobj)); + pr_debug("Registering sys device of class '%s'\n", + kobject_name(&cls->kset.kobj)); /* initialize the kobject to 0, in case it had previously been used */ memset(&sysdev->kobj, 0x00, sizeof(struct kobject)); @@ -257,6 +258,9 @@ int sysdev_register(struct sys_device * sysdev) if (!error) { struct sysdev_driver * drv; + pr_debug("Registering sys device '%s'\n", + kobject_name(&sysdev->kobj)); + mutex_lock(&sysdev_drivers_lock); /* Generic notification is implicit, because it's that * code that should have called us. @@ -269,6 +273,7 @@ int sysdev_register(struct sys_device * sysdev) } mutex_unlock(&sysdev_drivers_lock); } + kobject_uevent(&sysdev->kobj, KOBJ_ADD); return error; } diff --git a/drivers/base/topology.c b/drivers/base/topology.c index fdf4044d2e74..3f6d9b0a6abe 100644 --- a/drivers/base/topology.c +++ b/drivers/base/topology.c @@ -40,6 +40,7 @@ static ssize_t show_##name(struct sys_device *dev, char *buf) \ return sprintf(buf, "%d\n", topology_##name(cpu)); \ } +#if defined(topology_thread_siblings) || defined(topology_core_siblings) static ssize_t show_cpumap(int type, cpumask_t *mask, char *buf) { ptrdiff_t len = PTR_ALIGN(buf + PAGE_SIZE - 1, PAGE_SIZE) - buf; @@ -54,65 +55,65 @@ static ssize_t show_cpumap(int type, cpumask_t *mask, char *buf) } return n; } +#endif +#ifdef arch_provides_topology_pointers #define define_siblings_show_map(name) \ -static inline ssize_t show_##name(struct sys_device *dev, char *buf) \ +static ssize_t show_##name(struct sys_device *dev, char *buf) \ { \ unsigned int cpu = dev->id; \ return show_cpumap(0, &(topology_##name(cpu)), buf); \ } #define define_siblings_show_list(name) \ -static inline ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ +static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ { \ unsigned int cpu = dev->id; \ return show_cpumap(1, &(topology_##name(cpu)), buf); \ } +#else +#define define_siblings_show_map(name) \ +static ssize_t show_##name(struct sys_device *dev, char *buf) \ +{ \ + unsigned int cpu = dev->id; \ + cpumask_t mask = topology_##name(cpu); \ + return show_cpumap(0, &mask, buf); \ +} + +#define define_siblings_show_list(name) \ +static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ +{ \ + unsigned int cpu = dev->id; \ + cpumask_t mask = topology_##name(cpu); \ + return show_cpumap(1, &mask, buf); \ +} +#endif + #define define_siblings_show_func(name) \ define_siblings_show_map(name); define_siblings_show_list(name) -#ifdef topology_physical_package_id define_id_show_func(physical_package_id); define_one_ro(physical_package_id); -#define ref_physical_package_id_attr &attr_physical_package_id.attr, -#else -#define ref_physical_package_id_attr -#endif -#ifdef topology_core_id define_id_show_func(core_id); define_one_ro(core_id); -#define ref_core_id_attr &attr_core_id.attr, -#else -#define ref_core_id_attr -#endif -#ifdef topology_thread_siblings define_siblings_show_func(thread_siblings); define_one_ro(thread_siblings); define_one_ro(thread_siblings_list); -#define ref_thread_siblings_attr \ - &attr_thread_siblings.attr, &attr_thread_siblings_list.attr, -#else -#define ref_thread_siblings_attr -#endif -#ifdef topology_core_siblings define_siblings_show_func(core_siblings); define_one_ro(core_siblings); define_one_ro(core_siblings_list); -#define ref_core_siblings_attr \ - &attr_core_siblings.attr, &attr_core_siblings_list.attr, -#else -#define ref_core_siblings_attr -#endif static struct attribute *default_attrs[] = { - ref_physical_package_id_attr - ref_core_id_attr - ref_thread_siblings_attr - ref_core_siblings_attr + &attr_physical_package_id.attr, + &attr_core_id.attr, + &attr_thread_siblings.attr, + &attr_thread_siblings_list.attr, + &attr_core_siblings.attr, + &attr_core_siblings_list.attr, NULL }; diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c index e8e60e7a2e70..e5b2f2d2fb90 100644 --- a/drivers/block/aoe/aoechr.c +++ b/drivers/block/aoe/aoechr.c @@ -272,8 +272,9 @@ aoechr_init(void) return PTR_ERR(aoe_class); } for (i = 0; i < ARRAY_SIZE(chardevs); ++i) - device_create(aoe_class, NULL, - MKDEV(AOE_MAJOR, chardevs[i].minor), chardevs[i].name); + device_create_drvdata(aoe_class, NULL, + MKDEV(AOE_MAJOR, chardevs[i].minor), + NULL, chardevs[i].name); return 0; } diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 570f3b70dce7..5fdfa7c888ce 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -712,19 +712,17 @@ static void do_pd_request(struct request_queue * q) static int pd_special_command(struct pd_unit *disk, enum action (*func)(struct pd_unit *disk)) { - DECLARE_COMPLETION_ONSTACK(wait); - struct request rq; + struct request *rq; int err = 0; - blk_rq_init(NULL, &rq); - rq.rq_disk = disk->gd; - rq.end_io_data = &wait; - rq.end_io = blk_end_sync_rq; - blk_insert_request(disk->gd->queue, &rq, 0, func); - wait_for_completion(&wait); - if (rq.errors) - err = -EIO; - blk_put_request(&rq); + rq = blk_get_request(disk->gd->queue, READ, __GFP_WAIT); + + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->special = func; + + err = blk_execute_rq(disk->gd->queue, disk->gd, rq, 0); + + blk_put_request(rq); return err; } diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c index ab86e23ddc69..0267d5fc0dde 100644 --- a/drivers/block/paride/pg.c +++ b/drivers/block/paride/pg.c @@ -676,8 +676,9 @@ static int __init pg_init(void) for (unit = 0; unit < PG_UNITS; unit++) { struct pg *dev = &devices[unit]; if (dev->present) - device_create(pg_class, NULL, MKDEV(major, unit), - "pg%u", unit); + device_create_drvdata(pg_class, NULL, + MKDEV(major, unit), NULL, + "pg%u", unit); } err = 0; goto out; diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c index 8b9549ab4a4e..defab6164d28 100644 --- a/drivers/block/paride/pt.c +++ b/drivers/block/paride/pt.c @@ -972,10 +972,12 @@ static int __init pt_init(void) for (unit = 0; unit < PT_UNITS; unit++) if (pt[unit].present) { - device_create(pt_class, NULL, MKDEV(major, unit), - "pt%d", unit); - device_create(pt_class, NULL, MKDEV(major, unit + 128), - "pt%dn", unit); + device_create_drvdata(pt_class, NULL, + MKDEV(major, unit), NULL, + "pt%d", unit); + device_create_drvdata(pt_class, NULL, + MKDEV(major, unit + 128), NULL, + "pt%dn", unit); } goto out; diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 3ba1df93e9e3..12f2cfdce74f 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -302,7 +302,9 @@ static struct kobj_type kobj_pkt_type_wqueue = { static void pkt_sysfs_dev_new(struct pktcdvd_device *pd) { if (class_pktcdvd) { - pd->dev = device_create(class_pktcdvd, NULL, pd->pkt_dev, "%s", pd->name); + pd->dev = device_create_drvdata(class_pktcdvd, NULL, + pd->pkt_dev, NULL, + "%s", pd->name); if (IS_ERR(pd->dev)) pd->dev = NULL; } diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c index b990805806af..0c211adbc063 100644 --- a/drivers/bluetooth/bfusb.c +++ b/drivers/bluetooth/bfusb.c @@ -566,7 +566,8 @@ static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg return -ENOIOCTLCMD; } -static int bfusb_load_firmware(struct bfusb_data *data, unsigned char *firmware, int count) +static int bfusb_load_firmware(struct bfusb_data *data, + const unsigned char *firmware, int count) { unsigned char *buf; int err, pipe, len, size, sent = 0; diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c index 7703d6e06fd9..593b7c595038 100644 --- a/drivers/bluetooth/bt3c_cs.c +++ b/drivers/bluetooth/bt3c_cs.c @@ -470,7 +470,8 @@ static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long /* ======================== Card services HCI interaction ======================== */ -static int bt3c_load_firmware(bt3c_info_t *info, unsigned char *firmware, int count) +static int bt3c_load_firmware(bt3c_info_t *info, const unsigned char *firmware, + int count) { char *ptr = (char *) firmware; char b[9]; diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c index 13665db363d6..481ffe87c716 100644 --- a/drivers/char/agp/amd64-agp.c +++ b/drivers/char/agp/amd64-agp.c @@ -16,28 +16,9 @@ #include <asm/page.h> /* PAGE_SIZE */ #include <asm/e820.h> #include <asm/k8.h> +#include <asm/gart.h> #include "agp.h" -/* PTE bits. */ -#define GPTE_VALID 1 -#define GPTE_COHERENT 2 - -/* Aperture control register bits. */ -#define GARTEN (1<<0) -#define DISGARTCPU (1<<4) -#define DISGARTIO (1<<5) - -/* GART cache control register bits. */ -#define INVGART (1<<0) -#define GARTPTEERR (1<<1) - -/* K8 On-cpu GART registers */ -#define AMD64_GARTAPERTURECTL 0x90 -#define AMD64_GARTAPERTUREBASE 0x94 -#define AMD64_GARTTABLEBASE 0x98 -#define AMD64_GARTCACHECTL 0x9c -#define AMD64_GARTEN (1<<0) - /* NVIDIA K8 registers */ #define NVIDIA_X86_64_0_APBASE 0x10 #define NVIDIA_X86_64_1_APBASE1 0x50 @@ -165,29 +146,18 @@ static int amd64_fetch_size(void) * In a multiprocessor x86-64 system, this function gets * called once for each CPU. */ -static u64 amd64_configure (struct pci_dev *hammer, u64 gatt_table) +static u64 amd64_configure(struct pci_dev *hammer, u64 gatt_table) { u64 aperturebase; u32 tmp; - u64 addr, aper_base; + u64 aper_base; /* Address to map to */ - pci_read_config_dword (hammer, AMD64_GARTAPERTUREBASE, &tmp); + pci_read_config_dword(hammer, AMD64_GARTAPERTUREBASE, &tmp); aperturebase = tmp << 25; aper_base = (aperturebase & PCI_BASE_ADDRESS_MEM_MASK); - /* address of the mappings table */ - addr = (u64) gatt_table; - addr >>= 12; - tmp = (u32) addr<<4; - tmp &= ~0xf; - pci_write_config_dword (hammer, AMD64_GARTTABLEBASE, tmp); - - /* Enable GART translation for this hammer. */ - pci_read_config_dword(hammer, AMD64_GARTAPERTURECTL, &tmp); - tmp |= GARTEN; - tmp &= ~(DISGARTCPU | DISGARTIO); - pci_write_config_dword(hammer, AMD64_GARTAPERTURECTL, tmp); + enable_gart_translation(hammer, gatt_table); return aper_base; } @@ -226,9 +196,9 @@ static void amd64_cleanup(void) for (i = 0; i < num_k8_northbridges; i++) { struct pci_dev *dev = k8_northbridges[i]; /* disable gart translation */ - pci_read_config_dword (dev, AMD64_GARTAPERTURECTL, &tmp); + pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &tmp); tmp &= ~AMD64_GARTEN; - pci_write_config_dword (dev, AMD64_GARTAPERTURECTL, tmp); + pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, tmp); } } @@ -258,24 +228,10 @@ static const struct agp_bridge_driver amd_8151_driver = { }; /* Some basic sanity checks for the aperture. */ -static int __devinit aperture_valid(u64 aper, u32 size) +static int __devinit agp_aperture_valid(u64 aper, u32 size) { - if (aper == 0) { - printk(KERN_ERR PFX "No aperture\n"); - return 0; - } - if (size < 32*1024*1024) { - printk(KERN_ERR PFX "Aperture too small (%d MB)\n", size>>20); - return 0; - } - if ((u64)aper + size > 0x100000000ULL) { - printk(KERN_ERR PFX "Aperture out of bounds\n"); + if (!aperture_valid(aper, size, 32*1024*1024)) return 0; - } - if (e820_any_mapped(aper, aper + size, E820_RAM)) { - printk(KERN_ERR PFX "Aperture pointing to RAM\n"); - return 0; - } /* Request the Aperture. This catches cases when someone else already put a mapping in there - happens with some very broken BIOS @@ -308,11 +264,11 @@ static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp, u32 nb_order, nb_base; u16 apsize; - pci_read_config_dword(nb, 0x90, &nb_order); + pci_read_config_dword(nb, AMD64_GARTAPERTURECTL, &nb_order); nb_order = (nb_order >> 1) & 7; - pci_read_config_dword(nb, 0x94, &nb_base); + pci_read_config_dword(nb, AMD64_GARTAPERTUREBASE, &nb_base); nb_aper = nb_base << 25; - if (aperture_valid(nb_aper, (32*1024*1024)<<nb_order)) { + if (agp_aperture_valid(nb_aper, (32*1024*1024)<<nb_order)) { return 0; } @@ -331,12 +287,23 @@ static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp, pci_read_config_dword(agp, 0x10, &aper_low); pci_read_config_dword(agp, 0x14, &aper_hi); aper = (aper_low & ~((1<<22)-1)) | ((u64)aper_hi << 32); + + /* + * On some sick chips APSIZE is 0. This means it wants 4G + * so let double check that order, and lets trust the AMD NB settings + */ + if (order >=0 && aper + (32ULL<<(20 + order)) > 0x100000000ULL) { + printk(KERN_INFO "Aperture size %u MB is not right, using settings from NB\n", + 32 << order); + order = nb_order; + } + printk(KERN_INFO PFX "Aperture from AGP @ %Lx size %u MB\n", aper, 32 << order); - if (order < 0 || !aperture_valid(aper, (32*1024*1024)<<order)) + if (order < 0 || !agp_aperture_valid(aper, (32*1024*1024)<<order)) return -1; - pci_write_config_dword(nb, 0x90, order << 1); - pci_write_config_dword(nb, 0x94, aper >> 25); + pci_write_config_dword(nb, AMD64_GARTAPERTURECTL, order << 1); + pci_write_config_dword(nb, AMD64_GARTAPERTUREBASE, aper >> 25); return 0; } diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index ef73e72daedc..6bff9d87dc57 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -4668,7 +4668,7 @@ static inline int __devinit cyc_isfwstr(const char *str, unsigned int size) return 0; } -static inline void __devinit cyz_fpga_copy(void __iomem *fpga, u8 *data, +static inline void __devinit cyz_fpga_copy(void __iomem *fpga, const u8 *data, unsigned int size) { for (; size > 0; size--) { @@ -4701,10 +4701,10 @@ static int __devinit __cyz_load_fw(const struct firmware *fw, const char *name, const u32 mailbox, void __iomem *base, void __iomem *fpga) { - void *ptr = fw->data; - struct zfile_header *h = ptr; - struct zfile_config *c, *cs; - struct zfile_block *b, *bs; + const void *ptr = fw->data; + const struct zfile_header *h = ptr; + const struct zfile_config *c, *cs; + const struct zfile_block *b, *bs; unsigned int a, tmp, len = fw->size; #define BAD_FW KERN_ERR "Bad firmware: " if (len < sizeof(*h)) { diff --git a/drivers/char/drm/i915_drv.c b/drivers/char/drm/i915_drv.c index e8f3d682e3b1..93aed1c38bd2 100644 --- a/drivers/char/drm/i915_drv.c +++ b/drivers/char/drm/i915_drv.c @@ -389,6 +389,7 @@ static int i915_resume(struct drm_device *dev) pci_restore_state(dev->pdev); if (pci_enable_device(dev->pdev)) return -1; + pci_set_master(dev->pdev); pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB); diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c index a69c65283260..85373b33db56 100644 --- a/drivers/char/dsp56k.c +++ b/drivers/char/dsp56k.c @@ -513,7 +513,8 @@ static int __init dsp56k_init_driver(void) err = PTR_ERR(dsp56k_class); goto out_chrdev; } - device_create(dsp56k_class, NULL, MKDEV(DSP56K_MAJOR, 0), "dsp56k"); + device_create_drvdata(dsp56k_class, NULL, MKDEV(DSP56K_MAJOR, 0), + NULL, "dsp56k"); printk(banner); goto out; diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index e7fb0bca3667..c9bf5d44402d 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -184,6 +184,67 @@ static irqreturn_t hpet_interrupt(int irq, void *data) return IRQ_HANDLED; } +static void hpet_timer_set_irq(struct hpet_dev *devp) +{ + unsigned long v; + int irq, gsi; + struct hpet_timer __iomem *timer; + + spin_lock_irq(&hpet_lock); + if (devp->hd_hdwirq) { + spin_unlock_irq(&hpet_lock); + return; + } + + timer = devp->hd_timer; + + /* we prefer level triggered mode */ + v = readl(&timer->hpet_config); + if (!(v & Tn_INT_TYPE_CNF_MASK)) { + v |= Tn_INT_TYPE_CNF_MASK; + writel(v, &timer->hpet_config); + } + spin_unlock_irq(&hpet_lock); + + v = (readq(&timer->hpet_config) & Tn_INT_ROUTE_CAP_MASK) >> + Tn_INT_ROUTE_CAP_SHIFT; + + /* + * In PIC mode, skip IRQ0-4, IRQ6-9, IRQ12-15 which is always used by + * legacy device. In IO APIC mode, we skip all the legacy IRQS. + */ + if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) + v &= ~0xf3df; + else + v &= ~0xffff; + + for (irq = find_first_bit(&v, HPET_MAX_IRQ); irq < HPET_MAX_IRQ; + irq = find_next_bit(&v, HPET_MAX_IRQ, 1 + irq)) { + + if (irq >= NR_IRQS) { + irq = HPET_MAX_IRQ; + break; + } + + gsi = acpi_register_gsi(irq, ACPI_LEVEL_SENSITIVE, + ACPI_ACTIVE_LOW); + if (gsi > 0) + break; + + /* FIXME: Setup interrupt source table */ + } + + if (irq < HPET_MAX_IRQ) { + spin_lock_irq(&hpet_lock); + v = readl(&timer->hpet_config); + v |= irq << Tn_INT_ROUTE_CNF_SHIFT; + writel(v, &timer->hpet_config); + devp->hd_hdwirq = gsi; + spin_unlock_irq(&hpet_lock); + } + return; +} + static int hpet_open(struct inode *inode, struct file *file) { struct hpet_dev *devp; @@ -215,6 +276,8 @@ static int hpet_open(struct inode *inode, struct file *file) devp->hd_flags |= HPET_OPEN; spin_unlock_irq(&hpet_lock); + hpet_timer_set_irq(devp); + return 0; } diff --git a/drivers/char/hvc_xen.c b/drivers/char/hvc_xen.c index dd68f8541c2d..db2ae4216279 100644 --- a/drivers/char/hvc_xen.c +++ b/drivers/char/hvc_xen.c @@ -39,9 +39,14 @@ static int xencons_irq; /* ------------------------------------------------------------------ */ +static unsigned long console_pfn = ~0ul; + static inline struct xencons_interface *xencons_interface(void) { - return mfn_to_virt(xen_start_info->console.domU.mfn); + if (console_pfn == ~0ul) + return mfn_to_virt(xen_start_info->console.domU.mfn); + else + return __va(console_pfn << PAGE_SHIFT); } static inline void notify_daemon(void) @@ -101,20 +106,32 @@ static int __init xen_init(void) { struct hvc_struct *hp; - if (!is_running_on_xen()) - return 0; + if (!is_running_on_xen() || + is_initial_xendomain() || + !xen_start_info->console.domU.evtchn) + return -ENODEV; xencons_irq = bind_evtchn_to_irq(xen_start_info->console.domU.evtchn); if (xencons_irq < 0) - xencons_irq = 0 /* NO_IRQ */; + xencons_irq = 0; /* NO_IRQ */ + hp = hvc_alloc(HVC_COOKIE, xencons_irq, &hvc_ops, 256); if (IS_ERR(hp)) return PTR_ERR(hp); hvc = hp; + + console_pfn = mfn_to_pfn(xen_start_info->console.domU.mfn); + return 0; } +void xen_console_resume(void) +{ + if (xencons_irq) + rebind_evtchn_irq(xen_start_info->console.domU.evtchn, xencons_irq); +} + static void __exit xen_fini(void) { if (hvc) @@ -134,12 +151,28 @@ module_init(xen_init); module_exit(xen_fini); console_initcall(xen_cons_init); +static void raw_console_write(const char *str, int len) +{ + while(len > 0) { + int rc = HYPERVISOR_console_io(CONSOLEIO_write, len, (char *)str); + if (rc <= 0) + break; + + str += rc; + len -= rc; + } +} + +#ifdef CONFIG_EARLY_PRINTK static void xenboot_write_console(struct console *console, const char *string, unsigned len) { unsigned int linelen, off = 0; const char *pos; + raw_console_write(string, len); + + write_console(0, "(early) ", 8); while (off < len && NULL != (pos = strchr(string+off, '\n'))) { linelen = pos-string+off; if (off + linelen > len) @@ -155,5 +188,23 @@ static void xenboot_write_console(struct console *console, const char *string, struct console xenboot_console = { .name = "xenboot", .write = xenboot_write_console, - .flags = CON_PRINTBUFFER | CON_BOOT, + .flags = CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME, }; +#endif /* CONFIG_EARLY_PRINTK */ + +void xen_raw_console_write(const char *str) +{ + raw_console_write(str, strlen(str)); +} + +void xen_raw_printk(const char *fmt, ...) +{ + static char buf[512]; + va_list ap; + + va_start(ap, fmt); + vsnprintf(buf, sizeof(buf), fmt, ap); + va_end(ap); + + xen_raw_console_write(buf); +} diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index c12cf8fc4be0..3966694a44a0 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -692,12 +692,12 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize) } if ( NULL != ( pB = i2BoardPtrTable[i] ) ) { - device_create(ip2_class, NULL, - MKDEV(IP2_IPL_MAJOR, 4 * i), - "ipl%d", i); - device_create(ip2_class, NULL, - MKDEV(IP2_IPL_MAJOR, 4 * i + 1), - "stat%d", i); + device_create_drvdata(ip2_class, NULL, + MKDEV(IP2_IPL_MAJOR, 4 * i), + NULL, "ipl%d", i); + device_create_drvdata(ip2_class, NULL, + MKDEV(IP2_IPL_MAJOR, 4 * i + 1), + NULL, "stat%d", i); for ( box = 0; box < ABS_MAX_BOXES; ++box ) { diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c index 0246a2b8ce48..fee6781ffbe6 100644 --- a/drivers/char/ipmi/ipmi_devintf.c +++ b/drivers/char/ipmi/ipmi_devintf.c @@ -865,7 +865,7 @@ static void ipmi_new_smi(int if_num, struct device *device) entry->dev = dev; mutex_lock(®_list_mutex); - device_create(ipmi_class, device, dev, "ipmi%d", if_num); + device_create_drvdata(ipmi_class, device, dev, NULL, "ipmi%d", if_num); list_add(&entry->link, ®_list); mutex_unlock(®_list_mutex); } diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c index 7c8b62f162bf..3e1895fe1d9b 100644 --- a/drivers/char/istallion.c +++ b/drivers/char/istallion.c @@ -4599,8 +4599,9 @@ static int __init istallion_module_init(void) istallion_class = class_create(THIS_MODULE, "staliomem"); for (i = 0; i < 4; i++) - device_create(istallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i), - "staliomem%d", i); + device_create_drvdata(istallion_class, NULL, + MKDEV(STL_SIOMEMMAJOR, i), + NULL, "staliomem%d", i); return 0; err_deinit: diff --git a/drivers/char/lp.c b/drivers/char/lp.c index 60ac642752be..0418a4af420e 100644 --- a/drivers/char/lp.c +++ b/drivers/char/lp.c @@ -799,7 +799,8 @@ static int lp_register(int nr, struct parport *port) if (reset) lp_reset(nr); - device_create(lp_class, port->dev, MKDEV(LP_MAJOR, nr), "lp%d", nr); + device_create_drvdata(lp_class, port->dev, MKDEV(LP_MAJOR, nr), NULL, + "lp%d", nr); printk(KERN_INFO "lp%d: using %s (%s).\n", nr, port->name, (port->irq == PARPORT_IRQ_NONE)?"polling":"interrupt-driven"); diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 934ffafedaea..832025f6d532 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -983,9 +983,9 @@ static int __init chr_dev_init(void) mem_class = class_create(THIS_MODULE, "mem"); for (i = 0; i < ARRAY_SIZE(devlist); i++) - device_create(mem_class, NULL, - MKDEV(MEM_MAJOR, devlist[i].minor), - devlist[i].name); + device_create_drvdata(mem_class, NULL, + MKDEV(MEM_MAJOR, devlist[i].minor), + NULL, devlist[i].name); return 0; } diff --git a/drivers/char/misc.c b/drivers/char/misc.c index eaace0db0ff4..639b2b41d53e 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -214,8 +214,8 @@ int misc_register(struct miscdevice * misc) misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7); dev = MKDEV(MISC_MAJOR, misc->minor); - misc->this_device = device_create(misc_class, misc->parent, dev, - "%s", misc->name); + misc->this_device = device_create_drvdata(misc_class, misc->parent, + dev, NULL, "%s", misc->name); if (IS_ERR(misc->this_device)) { err = PTR_ERR(misc->this_device); goto out; diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c index 4a933d413423..586c1961b6fc 100644 --- a/drivers/char/pcmcia/cm4000_cs.c +++ b/drivers/char/pcmcia/cm4000_cs.c @@ -1864,7 +1864,7 @@ static int cm4000_probe(struct pcmcia_device *link) return ret; } - device_create(cmm_class, NULL, MKDEV(major, i), "cmm%d", i); + device_create_drvdata(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i); return 0; } diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c index 035084c07329..aaac106b8db5 100644 --- a/drivers/char/pcmcia/cm4040_cs.c +++ b/drivers/char/pcmcia/cm4040_cs.c @@ -642,7 +642,8 @@ static int reader_probe(struct pcmcia_device *link) return ret; } - device_create(cmx_class, NULL, MKDEV(major, i), "cmx%d", i); + device_create_drvdata(cmx_class, NULL, MKDEV(major, i), NULL, + "cmx%d", i); return 0; } diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c index 3aab837d9480..d0a0c783f630 100644 --- a/drivers/char/ppdev.c +++ b/drivers/char/ppdev.c @@ -750,8 +750,9 @@ static const struct file_operations pp_fops = { static void pp_attach(struct parport *port) { - device_create(ppdev_class, port->dev, MKDEV(PP_MAJOR, port->number), - "parport%d", port->number); + device_create_drvdata(ppdev_class, port->dev, + MKDEV(PP_MAJOR, port->number), + NULL, "parport%d", port->number); } static void pp_detach(struct parport *port) diff --git a/drivers/char/raw.c b/drivers/char/raw.c index bbfa0e241cba..213f05d71f89 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -128,8 +128,8 @@ raw_ioctl(struct inode *inode, struct file *filp, static void bind_device(struct raw_config_request *rq) { device_destroy(raw_class, MKDEV(RAW_MAJOR, rq->raw_minor)); - device_create(raw_class, NULL, MKDEV(RAW_MAJOR, rq->raw_minor), - "raw%d", rq->raw_minor); + device_create_drvdata(raw_class, NULL, MKDEV(RAW_MAJOR, rq->raw_minor), + NULL, "raw%d", rq->raw_minor); } /* @@ -280,7 +280,8 @@ static int __init raw_init(void) ret = PTR_ERR(raw_class); goto error_region; } - device_create(raw_class, NULL, MKDEV(RAW_MAJOR, 0), "rawctl"); + device_create_drvdata(raw_class, NULL, MKDEV(RAW_MAJOR, 0), NULL, + "rawctl"); return 0; diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c index 8fe099a41065..864080c257ab 100644 --- a/drivers/char/snsc.c +++ b/drivers/char/snsc.c @@ -441,7 +441,8 @@ scdrv_init(void) continue; } - device_create(snsc_class, NULL, dev, "%s", devname); + device_create_drvdata(snsc_class, NULL, dev, NULL, + "%s", devname); ia64_sn_irtr_intr_enable(scd->scd_nasid, 0 /*ignored */ , diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index d17be10c5d21..c0c03fd1c691 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -4753,8 +4753,8 @@ static int __init stallion_module_init(void) if (IS_ERR(stallion_class)) printk("STALLION: failed to create class\n"); for (i = 0; i < 4; i++) - device_create(stallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i), - "staliomem%d", i); + device_create_drvdata(stallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i), + NULL, "staliomem%d", i); return 0; err_unrtty: diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index e94bee032314..59dc116b8eb9 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -3896,7 +3896,7 @@ struct device *tty_register_device(struct tty_driver *driver, unsigned index, else tty_line_name(driver, index, name); - return device_create(tty_class, device, dev, name); + return device_create_drvdata(tty_class, device, dev, NULL, name); } /** @@ -4174,20 +4174,22 @@ static int __init tty_init(void) if (cdev_add(&tty_cdev, MKDEV(TTYAUX_MAJOR, 0), 1) || register_chrdev_region(MKDEV(TTYAUX_MAJOR, 0), 1, "/dev/tty") < 0) panic("Couldn't register /dev/tty driver\n"); - device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 0), "tty"); + device_create_drvdata(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 0), NULL, + "tty"); cdev_init(&console_cdev, &console_fops); if (cdev_add(&console_cdev, MKDEV(TTYAUX_MAJOR, 1), 1) || register_chrdev_region(MKDEV(TTYAUX_MAJOR, 1), 1, "/dev/console") < 0) panic("Couldn't register /dev/console driver\n"); - device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 1), "console"); + device_create_drvdata(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 1), NULL, + "console"); #ifdef CONFIG_UNIX98_PTYS cdev_init(&ptmx_cdev, &ptmx_fops); if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) || register_chrdev_region(MKDEV(TTYAUX_MAJOR, 2), 1, "/dev/ptmx") < 0) panic("Couldn't register /dev/ptmx driver\n"); - device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 2), "ptmx"); + device_create_drvdata(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 2), NULL, "ptmx"); #endif #ifdef CONFIG_VT @@ -4195,7 +4197,7 @@ static int __init tty_init(void) if (cdev_add(&vc0_cdev, MKDEV(TTY_MAJOR, 0), 1) || register_chrdev_region(MKDEV(TTY_MAJOR, 0), 1, "/dev/vc/0") < 0) panic("Couldn't register /dev/tty0 driver\n"); - device_create(tty_class, NULL, MKDEV(TTY_MAJOR, 0), "tty0"); + device_create_drvdata(tty_class, NULL, MKDEV(TTY_MAJOR, 0), NULL, "tty0"); vty_init(); #endif diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c index 83aeedda200c..03f9dc309dbe 100644 --- a/drivers/char/vc_screen.c +++ b/drivers/char/vc_screen.c @@ -476,10 +476,10 @@ static struct class *vc_class; void vcs_make_sysfs(struct tty_struct *tty) { - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), - "vcs%u", tty->index + 1); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), - "vcsa%u", tty->index + 1); + device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), + NULL, "vcs%u", tty->index + 1); + device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), + NULL, "vcsa%u", tty->index + 1); } void vcs_remove_sysfs(struct tty_struct *tty) @@ -494,7 +494,7 @@ int __init vcs_init(void) panic("unable to get major %d for vcs device", VCS_MAJOR); vc_class = class_create(THIS_MODULE, "vc"); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), "vcs"); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), "vcsa"); + device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs"); + device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa"); return 0; } diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c index c39ddaff5e8f..e508ad99d11e 100644 --- a/drivers/char/viotape.c +++ b/drivers/char/viotape.c @@ -872,10 +872,10 @@ static int viotape_probe(struct vio_dev *vdev, const struct vio_device_id *id) state[i].cur_part = 0; for (j = 0; j < MAX_PARTITIONS; ++j) state[i].part_stat_rwi[j] = VIOT_IDLE; - device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i), - "iseries!vt%d", i); - device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80), - "iseries!nvt%d", i); + device_create_drvdata(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i), + NULL, "iseries!vt%d", i); + device_create_drvdata(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80), + NULL, "iseries!nvt%d", i); printk(VIOTAPE_KERN_INFO "tape iseries/vt%d is iSeries " "resource %10.10s type %4.4s, model %3.3s\n", i, viotape_unitinfo[i].rsrcname, diff --git a/drivers/char/vt.c b/drivers/char/vt.c index 935f1c207a1f..e32a076d5f1f 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -3425,9 +3425,10 @@ int register_con_driver(const struct consw *csw, int first, int last) if (retval) goto err; - con_driver->dev = device_create(vtconsole_class, NULL, - MKDEV(0, con_driver->node), - "vtcon%i", con_driver->node); + con_driver->dev = device_create_drvdata(vtconsole_class, NULL, + MKDEV(0, con_driver->node), + NULL, "vtcon%i", + con_driver->node); if (IS_ERR(con_driver->dev)) { printk(KERN_WARNING "Unable to create device for %s; " @@ -3535,9 +3536,10 @@ static int __init vtconsole_class_init(void) struct con_driver *con = ®istered_con_driver[i]; if (con->con && !con->dev) { - con->dev = device_create(vtconsole_class, NULL, - MKDEV(0, con->node), - "vtcon%i", con->node); + con->dev = device_create_drvdata(vtconsole_class, NULL, + MKDEV(0, con->node), + NULL, "vtcon%i", + con->node); if (IS_ERR(con->dev)) { printk(KERN_WARNING "Unable to create " diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c index 3edf1fc12963..ba104631a976 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c @@ -654,8 +654,9 @@ static int __devinit hwicap_setup(struct device *dev, int id, dev_err(dev, "cdev_add() failed\n"); goto failed3; } - /* devfs_mk_cdev(devt, S_IFCHR|S_IRUGO|S_IWUGO, DRIVER_NAME); */ - device_create(icap_class, dev, devt, "%s%d", DRIVER_NAME, id); + + device_create_drvdata(icap_class, dev, devt, NULL, + "%s%d", DRIVER_NAME, id); return 0; /* success */ failed3: diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 1d41496ed2f8..d8f8b1e0edde 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -589,7 +589,7 @@ static ssize_t show_cpus(cpumask_t mask, char *buf) ssize_t i = 0; unsigned int cpu; - for_each_cpu_mask(cpu, mask) { + for_each_cpu_mask_nr(cpu, mask) { if (i) i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), " "); i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), "%u", cpu); @@ -835,7 +835,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) } #endif - for_each_cpu_mask(j, policy->cpus) { + for_each_cpu_mask_nr(j, policy->cpus) { if (cpu == j) continue; @@ -898,14 +898,14 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) } spin_lock_irqsave(&cpufreq_driver_lock, flags); - for_each_cpu_mask(j, policy->cpus) { + for_each_cpu_mask_nr(j, policy->cpus) { cpufreq_cpu_data[j] = policy; per_cpu(policy_cpu, j) = policy->cpu; } spin_unlock_irqrestore(&cpufreq_driver_lock, flags); /* symlink affected CPUs */ - for_each_cpu_mask(j, policy->cpus) { + for_each_cpu_mask_nr(j, policy->cpus) { if (j == cpu) continue; if (!cpu_online(j)) @@ -945,7 +945,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) err_out_unregister: spin_lock_irqsave(&cpufreq_driver_lock, flags); - for_each_cpu_mask(j, policy->cpus) + for_each_cpu_mask_nr(j, policy->cpus) cpufreq_cpu_data[j] = NULL; spin_unlock_irqrestore(&cpufreq_driver_lock, flags); @@ -1028,7 +1028,7 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev) * links afterwards. */ if (unlikely(cpus_weight(data->cpus) > 1)) { - for_each_cpu_mask(j, data->cpus) { + for_each_cpu_mask_nr(j, data->cpus) { if (j == cpu) continue; cpufreq_cpu_data[j] = NULL; @@ -1038,7 +1038,7 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev) spin_unlock_irqrestore(&cpufreq_driver_lock, flags); if (unlikely(cpus_weight(data->cpus) > 1)) { - for_each_cpu_mask(j, data->cpus) { + for_each_cpu_mask_nr(j, data->cpus) { if (j == cpu) continue; dprintk("removing link for cpu %u\n", j); diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c index 5d3a04ba6ad2..fe565ee43757 100644 --- a/drivers/cpufreq/cpufreq_conservative.c +++ b/drivers/cpufreq/cpufreq_conservative.c @@ -497,7 +497,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy, return rc; } - for_each_cpu_mask(j, policy->cpus) { + for_each_cpu_mask_nr(j, policy->cpus) { struct cpu_dbs_info_s *j_dbs_info; j_dbs_info = &per_cpu(cpu_dbs_info, j); j_dbs_info->cur_policy = policy; diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index d2af20dda382..33855cb3cf16 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -367,7 +367,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info) /* Get Idle Time */ idle_ticks = UINT_MAX; - for_each_cpu_mask(j, policy->cpus) { + for_each_cpu_mask_nr(j, policy->cpus) { cputime64_t total_idle_ticks; unsigned int tmp_idle_ticks; struct cpu_dbs_info_s *j_dbs_info; @@ -521,7 +521,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy, return rc; } - for_each_cpu_mask(j, policy->cpus) { + for_each_cpu_mask_nr(j, policy->cpus) { struct cpu_dbs_info_s *j_dbs_info; j_dbs_info = &per_cpu(cpu_dbs_info, j); j_dbs_info->cur_policy = policy; diff --git a/drivers/dca/dca-sysfs.c b/drivers/dca/dca-sysfs.c index 011328faa5f2..9a70377bfb34 100644 --- a/drivers/dca/dca-sysfs.c +++ b/drivers/dca/dca-sysfs.c @@ -14,8 +14,9 @@ int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot) { struct device *cd; - cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), - "requester%d", slot); + cd = device_create_drvdata(dca_class, dca->cd, + MKDEV(0, slot + 1), NULL, + "requester%d", slot); if (IS_ERR(cd)) return PTR_ERR(cd); return 0; @@ -46,7 +47,8 @@ idr_try_again: return err; } - cd = device_create(dca_class, dev, MKDEV(0, 0), "dca%d", dca->id); + cd = device_create_drvdata(dca_class, dev, MKDEV(0, 0), NULL, + "dca%d", dca->id); if (IS_ERR(cd)) { spin_lock(&dca_idr_lock); idr_remove(&dca_idr, dca->id); diff --git a/drivers/eisa/Makefile b/drivers/eisa/Makefile index 70abf93fe6b0..5369ce957c6d 100644 --- a/drivers/eisa/Makefile +++ b/drivers/eisa/Makefile @@ -9,7 +9,7 @@ obj-${CONFIG_EISA_VIRTUAL_ROOT} += virtual_root.o # Ugly hack to get DEVICE_NAME_SIZE value... -DEVICE_NAME_SIZE =$(shell awk '$$1=="\#define" && $$2=="DEVICE_NAME_SIZE" {print $$3-1}' $(srctree)/include/linux/device.h) +DEVICE_NAME_SIZE = 50 $(obj)/eisa-bus.o: $(obj)/devlist.h diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c index 65dcf0432653..c950bf8606d9 100644 --- a/drivers/eisa/eisa-bus.c +++ b/drivers/eisa/eisa-bus.c @@ -22,7 +22,7 @@ struct eisa_device_info { struct eisa_device_id id; - char name[DEVICE_NAME_SIZE]; + char name[50]; }; #ifdef CONFIG_EISA_NAMES @@ -63,7 +63,7 @@ static void __init eisa_name_device (struct eisa_device *edev) if (!strcmp (edev->id.sig, eisa_table[i].id.sig)) { strlcpy (edev->pretty_name, eisa_table[i].name, - DEVICE_NAME_SIZE); + sizeof(edev->pretty_name)); return; } } diff --git a/drivers/firmware/dell_rbu.c b/drivers/firmware/dell_rbu.c index 6a8b1e037e07..7430e218cda6 100644 --- a/drivers/firmware/dell_rbu.c +++ b/drivers/firmware/dell_rbu.c @@ -220,7 +220,7 @@ out_noalloc: return retval; } -static int packetize_data(void *data, size_t length) +static int packetize_data(const u8 *data, size_t length) { int rc = 0; int done = 0; diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index c5e3ed7e903b..455575be3560 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -8,6 +8,11 @@ #include <linux/slab.h> #include <asm/dmi.h> +/* + * DMI stands for "Desktop Management Interface". It is part + * of and an antecedent to, SMBIOS, which stands for System + * Management BIOS. See further: http://www.dmtf.org/standards + */ static char dmi_empty_string[] = " "; static const char * __init dmi_string_nosave(const struct dmi_header *dm, u8 s) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index f43d6d3cf2fa..426ac5add585 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -780,7 +780,7 @@ static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n) */ static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value) { - __le64 x; + u64 x; u64 m = (1ULL << n) - 1; if (n > 32) @@ -796,10 +796,10 @@ static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u3 report += offset >> 3; offset &= 7; - x = get_unaligned((__le64 *)report); - x &= cpu_to_le64(~(m << offset)); - x |= cpu_to_le64(((u64) value) << offset); - put_unaligned(x, (__le64 *) report); + x = get_unaligned_le64(report); + x &= ~(m << offset); + x |= ((u64)value) << offset; + put_unaligned_le64(x, report); } /* diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index 1ca6f4635eeb..a4ee85356c3f 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -30,6 +30,7 @@ #include <linux/major.h> #include <linux/hid.h> #include <linux/mutex.h> +#include <linux/smp_lock.h> #include <linux/hidraw.h> @@ -104,6 +105,7 @@ out: static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { unsigned int minor = iminor(file->f_path.dentry->d_inode); + /* FIXME: What stops hidraw_table going NULL */ struct hid_device *dev = hidraw_table[minor]->hid; __u8 *buf; int ret = 0; @@ -208,38 +210,43 @@ static int hidraw_release(struct inode * inode, struct file * file) kfree(list->hidraw); } + kfree(list); + return 0; } -static int hidraw_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long hidraw_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { + struct inode *inode = file->f_path.dentry->d_inode; unsigned int minor = iminor(inode); + long ret = 0; + /* FIXME: What stops hidraw_table going NULL */ struct hidraw *dev = hidraw_table[minor]; void __user *user_arg = (void __user*) arg; + lock_kernel(); switch (cmd) { case HIDIOCGRDESCSIZE: if (put_user(dev->hid->rsize, (int __user *)arg)) - return -EFAULT; - return 0; + ret = -EFAULT; + break; case HIDIOCGRDESC: { __u32 len; if (get_user(len, (int __user *)arg)) - return -EFAULT; - - if (len > HID_MAX_DESCRIPTOR_SIZE - 1) - return -EINVAL; - - if (copy_to_user(user_arg + offsetof( - struct hidraw_report_descriptor, - value[0]), - dev->hid->rdesc, - min(dev->hid->rsize, len))) - return -EFAULT; - return 0; + ret = -EFAULT; + else if (len > HID_MAX_DESCRIPTOR_SIZE - 1) + ret = -EINVAL; + else if (copy_to_user(user_arg + offsetof( + struct hidraw_report_descriptor, + value[0]), + dev->hid->rdesc, + min(dev->hid->rsize, len))) + ret = -EFAULT; + break; } case HIDIOCGRAWINFO: { @@ -249,15 +256,13 @@ static int hidraw_ioctl(struct inode *inode, struct file *file, unsigned int cmd dinfo.vendor = dev->hid->vendor; dinfo.product = dev->hid->product; if (copy_to_user(user_arg, &dinfo, sizeof(dinfo))) - return -EFAULT; - - return 0; + ret = -EFAULT; + break; } default: - printk(KERN_EMERG "hidraw: unsupported ioctl() %x\n", - cmd); + ret = -ENOTTY; } - return -EINVAL; + return ret; } static const struct file_operations hidraw_ops = { @@ -267,7 +272,7 @@ static const struct file_operations hidraw_ops = { .poll = hidraw_poll, .open = hidraw_open, .release = hidraw_release, - .ioctl = hidraw_ioctl, + .unlocked_ioctl = hidraw_ioctl, }; void hidraw_report_event(struct hid_device *hid, u8 *data, int len) @@ -319,8 +324,9 @@ int hidraw_connect(struct hid_device *hid) goto out; } - dev->dev = device_create(hidraw_class, NULL, MKDEV(hidraw_major, minor), - "%s%d", "hidraw", minor); + dev->dev = device_create_drvdata(hidraw_class, NULL, + MKDEV(hidraw_major, minor), NULL, + "%s%d", "hidraw", minor); if (IS_ERR(dev->dev)) { spin_lock(&minors_lock); diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 01427c51c7cc..27fe4d8912cb 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -122,7 +122,7 @@ static void hid_reset(struct work_struct *work) dev_dbg(&usbhid->intf->dev, "resetting device\n"); rc = rc_lock = usb_lock_device_for_reset(hid_to_usb_dev(hid), usbhid->intf); if (rc_lock >= 0) { - rc = usb_reset_composite_device(hid_to_usb_dev(hid), usbhid->intf); + rc = usb_reset_device(hid_to_usb_dev(hid)); if (rc_lock) usb_unlock_device(hid_to_usb_dev(hid)); } diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index 1df832a8fcbc..f35c2d1d53a0 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -69,12 +69,18 @@ #define USB_DEVICE_ID_APPLE_ALU_ANSI 0x0220 #define USB_DEVICE_ID_APPLE_ALU_ISO 0x0221 #define USB_DEVICE_ID_APPLE_ALU_JIS 0x0222 +#define USB_DEVICE_ID_APPLE_WELLSPRING_ANSI 0x0223 +#define USB_DEVICE_ID_APPLE_WELLSPRING_ISO 0x0224 +#define USB_DEVICE_ID_APPLE_WELLSPRING_JIS 0x0225 #define USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI 0x0229 #define USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO 0x022a #define USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS 0x022b #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI 0x022c #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO 0x022d #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS 0x022e +#define USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI 0x0230 +#define USB_DEVICE_ID_APPLE_WELLSPRING2_ISO 0x0231 +#define USB_DEVICE_ID_APPLE_WELLSPRING2_JIS 0x0232 #define USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY 0x030a #define USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY 0x030b #define USB_DEVICE_ID_APPLE_IRCONTROL4 0x8242 @@ -241,6 +247,8 @@ #define USB_DEVICE_ID_LD_MACHINETEST 0x2040 #define USB_VENDOR_ID_LOGITECH 0x046d +#define USB_DEVICE_ID_LOGITECH_LX3 0xc044 +#define USB_DEVICE_ID_LOGITECH_V150 0xc047 #define USB_DEVICE_ID_LOGITECH_RECEIVER 0xc101 #define USB_DEVICE_ID_LOGITECH_HARMONY 0xc110 #define USB_DEVICE_ID_LOGITECH_HARMONY_2 0xc111 @@ -593,6 +601,8 @@ static const struct hid_blacklist { { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD, HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL | HID_QUIRK_LOGITECH_EXPANDED_KEYMAP }, { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500, HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL | HID_QUIRK_LOGITECH_EXPANDED_KEYMAP }, + { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_LX3, HID_QUIRK_INVERT_HWHEEL }, + { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_V150, HID_QUIRK_INVERT_HWHEEL }, { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K, HID_QUIRK_MICROSOFT_KEYS }, { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K, HID_QUIRK_MICROSOFT_KEYS }, @@ -642,6 +652,12 @@ static const struct hid_blacklist { { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI, HID_QUIRK_APPLE_NUMLOCK_EMULATION | HID_QUIRK_APPLE_HAS_FN }, { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO, HID_QUIRK_APPLE_NUMLOCK_EMULATION | HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_APPLE_ISO_KEYBOARD }, { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS, HID_QUIRK_APPLE_NUMLOCK_EMULATION | HID_QUIRK_APPLE_HAS_FN }, + { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI, HID_QUIRK_APPLE_HAS_FN }, + { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO, HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_APPLE_ISO_KEYBOARD }, + { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS, HID_QUIRK_APPLE_HAS_FN }, + { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI, HID_QUIRK_APPLE_HAS_FN }, + { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO, HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_APPLE_ISO_KEYBOARD }, + { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS, HID_QUIRK_APPLE_HAS_FN }, { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY, HID_QUIRK_APPLE_NUMLOCK_EMULATION | HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_IGNORE_MOUSE }, { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY, HID_QUIRK_APPLE_NUMLOCK_EMULATION | HID_QUIRK_APPLE_HAS_FN | HID_QUIRK_IGNORE_MOUSE }, @@ -1128,7 +1144,7 @@ static void usbhid_fixup_microsoft_descriptor(unsigned char *rdesc, int rsize) && rdesc[557] == 0x19 && rdesc[559] == 0x29) { printk(KERN_INFO "Fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n"); - rdesc[284] = rdesc[304] = rdesc[558] = 0x35; + rdesc[284] = rdesc[304] = rdesc[557] = 0x35; rdesc[352] = 0x36; rdesc[286] = rdesc[355] = 0x46; rdesc[306] = rdesc[559] = 0x45; diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c index 95cc192bc7af..842e9edb888e 100644 --- a/drivers/hid/usbhid/hiddev.c +++ b/drivers/hid/usbhid/hiddev.c @@ -406,6 +406,7 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd, uref_multi = kmalloc(sizeof(struct hiddev_usage_ref_multi), GFP_KERNEL); if (!uref_multi) return -ENOMEM; + lock_kernel(); uref = &uref_multi->uref; if (cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) { if (copy_from_user(uref_multi, user_arg, @@ -501,12 +502,15 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd, } goodreturn: + unlock_kernel(); kfree(uref_multi); return 0; fault: + unlock_kernel(); kfree(uref_multi); return -EFAULT; inval: + unlock_kernel(); kfree(uref_multi); return -EINVAL; } @@ -540,7 +544,7 @@ static noinline int hiddev_ioctl_string(struct hiddev *hiddev, unsigned int cmd, return len; } -static int hiddev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct hiddev_list *list = file->private_data; struct hiddev *hiddev = list->hiddev; @@ -555,7 +559,10 @@ static int hiddev_ioctl(struct inode *inode, struct file *file, unsigned int cmd struct usbhid_device *usbhid = hid->driver_data; void __user *user_arg = (void __user *)arg; int i; + + /* Called without BKL by compat methods so no BKL taken */ + /* FIXME: Who or what stop this racing with a disconnect ?? */ if (!hiddev->exist) return -EIO; @@ -756,8 +763,7 @@ static int hiddev_ioctl(struct inode *inode, struct file *file, unsigned int cmd #ifdef CONFIG_COMPAT static long hiddev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct inode *inode = file->f_path.dentry->d_inode; - return hiddev_ioctl(inode, file, cmd, (unsigned long)compat_ptr(arg)); + return hiddev_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); } #endif @@ -768,7 +774,7 @@ static const struct file_operations hiddev_fops = { .poll = hiddev_poll, .open = hiddev_open, .release = hiddev_release, - .ioctl = hiddev_ioctl, + .unlocked_ioctl = hiddev_ioctl, .fasync = hiddev_fasync, #ifdef CONFIG_COMPAT .compat_ioctl = hiddev_compat_ioctl, diff --git a/drivers/hid/usbhid/usbkbd.c b/drivers/hid/usbhid/usbkbd.c index 3cd46d2e53c1..6aa8b7e8fb98 100644 --- a/drivers/hid/usbhid/usbkbd.c +++ b/drivers/hid/usbhid/usbkbd.c @@ -43,7 +43,7 @@ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE(DRIVER_LICENSE); -static unsigned char usb_kbd_keycode[256] = { +static const unsigned char usb_kbd_keycode[256] = { 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26, diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c index 1d76de7d75c7..ba3a71e4a48c 100644 --- a/drivers/hwmon/adm1025.c +++ b/drivers/hwmon/adm1025.c @@ -2,7 +2,7 @@ * adm1025.c * * Copyright (C) 2000 Chen-Yuan Wu <gwu@esoft.com> - * Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org> + * Copyright (C) 2003-2008 Jean Delvare <khali@linux-fr.org> * * The ADM1025 is a sensor chip made by Analog Devices. It reports up to 6 * voltages (including its own power source) and up to two temperatures @@ -109,22 +109,34 @@ static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 }; * Functions declaration */ -static int adm1025_attach_adapter(struct i2c_adapter *adapter); -static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind); +static int adm1025_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int adm1025_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); static void adm1025_init_client(struct i2c_client *client); -static int adm1025_detach_client(struct i2c_client *client); +static int adm1025_remove(struct i2c_client *client); static struct adm1025_data *adm1025_update_device(struct device *dev); /* * Driver data (common to all clients) */ +static struct i2c_device_id adm1025_id[] = { + { "adm1025", adm1025 }, + { "ne1619", ne1619 }, + { } +}; + static struct i2c_driver adm1025_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "adm1025", }, - .attach_adapter = adm1025_attach_adapter, - .detach_client = adm1025_detach_client, + .probe = adm1025_probe, + .remove = adm1025_remove, + .id_table = adm1025_id, + .detect = adm1025_detect, + .address_data = &addr_data, }; /* @@ -132,7 +144,6 @@ static struct i2c_driver adm1025_driver = { */ struct adm1025_data { - struct i2c_client client; struct device *hwmon_dev; struct mutex update_lock; char valid; /* zero until following fields are valid */ @@ -344,13 +355,6 @@ static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); * Real code */ -static int adm1025_attach_adapter(struct i2c_adapter *adapter) -{ - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, adm1025_detect); -} - static struct attribute *adm1025_attributes[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, @@ -403,31 +407,16 @@ static const struct attribute_group adm1025_group_in4 = { .attrs = adm1025_attributes_in4, }; -/* - * The following function does more than just detection. If detection - * succeeds, it also registers the new chip. - */ -static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int adm1025_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - struct i2c_client *client; - struct adm1025_data *data; - int err = 0; + struct i2c_adapter *adapter = client->adapter; const char *name = ""; u8 config; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - goto exit; - - if (!(data = kzalloc(sizeof(struct adm1025_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - client = &data->client; - i2c_set_clientdata(client, data); - client->addr = address; - client->adapter = adapter; - client->driver = &adm1025_driver; + return -ENODEV; /* * Now we do the remaining detection. A negative kind means that @@ -448,8 +437,8 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind) ADM1025_REG_STATUS2) & 0xBC) != 0x00) { dev_dbg(&adapter->dev, "ADM1025 detection failed at 0x%02x.\n", - address); - goto exit_free; + client->addr); + return -ENODEV; } } @@ -465,7 +454,7 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind) } } else if (man_id == 0xA1) { /* Philips */ - if (address != 0x2E + if (client->addr != 0x2E && (chip_id & 0xF0) == 0x20) { /* NE1619 */ kind = ne1619; } @@ -475,7 +464,7 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind) dev_info(&adapter->dev, "Unsupported chip (man_id=0x%02X, " "chip_id=0x%02X).\n", man_id, chip_id); - goto exit_free; + return -ENODEV; } } @@ -484,23 +473,36 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind) } else if (kind == ne1619) { name = "ne1619"; } + strlcpy(info->type, name, I2C_NAME_SIZE); - /* We can fill in the remaining client fields */ - strlcpy(client->name, name, I2C_NAME_SIZE); - mutex_init(&data->update_lock); + return 0; +} - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(client))) - goto exit_free; +static int adm1025_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct adm1025_data *data; + int err; + u8 config; + + data = kzalloc(sizeof(struct adm1025_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); /* Initialize the ADM1025 chip */ adm1025_init_client(client); /* Register sysfs hooks */ if ((err = sysfs_create_group(&client->dev.kobj, &adm1025_group))) - goto exit_detach; + goto exit_free; /* Pin 11 is either in4 (+12V) or VID4 */ + config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG); if (!(config & 0x20)) { if ((err = sysfs_create_group(&client->dev.kobj, &adm1025_group_in4))) @@ -518,8 +520,6 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind) exit_remove: sysfs_remove_group(&client->dev.kobj, &adm1025_group); sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4); -exit_detach: - i2c_detach_client(client); exit_free: kfree(data); exit: @@ -568,18 +568,14 @@ static void adm1025_init_client(struct i2c_client *client) (reg&0x7E)|0x01); } -static int adm1025_detach_client(struct i2c_client *client) +static int adm1025_remove(struct i2c_client *client) { struct adm1025_data *data = i2c_get_clientdata(client); - int err; hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &adm1025_group); sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4); - if ((err = i2c_detach_client(client))) - return err; - kfree(data); return 0; } diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c index dc1f30e432ea..1692de369969 100644 --- a/drivers/hwmon/f75375s.c +++ b/drivers/hwmon/f75375s.c @@ -87,7 +87,6 @@ I2C_CLIENT_INSMOD_2(f75373, f75375); struct f75375_data { unsigned short addr; - struct i2c_client *client; struct device *hwmon_dev; const char *name; @@ -114,21 +113,12 @@ struct f75375_data { s8 temp_max_hyst[2]; }; -static int f75375_attach_adapter(struct i2c_adapter *adapter); -static int f75375_detect(struct i2c_adapter *adapter, int address, int kind); -static int f75375_detach_client(struct i2c_client *client); +static int f75375_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); static int f75375_probe(struct i2c_client *client, const struct i2c_device_id *id); static int f75375_remove(struct i2c_client *client); -static struct i2c_driver f75375_legacy_driver = { - .driver = { - .name = "f75375_legacy", - }, - .attach_adapter = f75375_attach_adapter, - .detach_client = f75375_detach_client, -}; - static const struct i2c_device_id f75375_id[] = { { "f75373", f75373 }, { "f75375", f75375 }, @@ -137,12 +127,15 @@ static const struct i2c_device_id f75375_id[] = { MODULE_DEVICE_TABLE(i2c, f75375_id); static struct i2c_driver f75375_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "f75375", }, .probe = f75375_probe, .remove = f75375_remove, .id_table = f75375_id, + .detect = f75375_detect, + .address_data = &addr_data, }; static inline int f75375_read8(struct i2c_client *client, u8 reg) @@ -607,22 +600,6 @@ static const struct attribute_group f75375_group = { .attrs = f75375_attributes, }; -static int f75375_detach_client(struct i2c_client *client) -{ - int err; - - f75375_remove(client); - err = i2c_detach_client(client); - if (err) { - dev_err(&client->dev, - "Client deregistration failed, " - "client not detached.\n"); - return err; - } - kfree(client); - return 0; -} - static void f75375_init(struct i2c_client *client, struct f75375_data *data, struct f75375s_platform_data *f75375s_pdata) { @@ -651,7 +628,6 @@ static int f75375_probe(struct i2c_client *client, return -ENOMEM; i2c_set_clientdata(client, data); - data->client = client; mutex_init(&data->update_lock); data->kind = id->driver_data; @@ -700,29 +676,13 @@ static int f75375_remove(struct i2c_client *client) return 0; } -static int f75375_attach_adapter(struct i2c_adapter *adapter) -{ - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, f75375_detect); -} - -/* This function is called by i2c_probe */ -static int f75375_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int f75375_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - struct i2c_client *client; + struct i2c_adapter *adapter = client->adapter; u8 version = 0; - int err = 0; const char *name = ""; - struct i2c_device_id id; - - if (!(client = kzalloc(sizeof(*client), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - client->addr = address; - client->adapter = adapter; - client->driver = &f75375_legacy_driver; if (kind < 0) { u16 vendid = f75375_read16(client, F75375_REG_VENDOR); @@ -736,7 +696,7 @@ static int f75375_detect(struct i2c_adapter *adapter, int address, int kind) dev_err(&adapter->dev, "failed,%02X,%02X,%02X\n", chipid, version, vendid); - goto exit_free; + return -ENODEV; } } @@ -746,43 +706,18 @@ static int f75375_detect(struct i2c_adapter *adapter, int address, int kind) name = "f75373"; } dev_info(&adapter->dev, "found %s version: %02X\n", name, version); - strlcpy(client->name, name, I2C_NAME_SIZE); - - if ((err = i2c_attach_client(client))) - goto exit_free; - - strlcpy(id.name, name, I2C_NAME_SIZE); - id.driver_data = kind; - if ((err = f75375_probe(client, &id)) < 0) - goto exit_detach; + strlcpy(info->type, name, I2C_NAME_SIZE); return 0; - -exit_detach: - i2c_detach_client(client); -exit_free: - kfree(client); -exit: - return err; } static int __init sensors_f75375_init(void) { - int status; - status = i2c_add_driver(&f75375_driver); - if (status) - return status; - - status = i2c_add_driver(&f75375_legacy_driver); - if (status) - i2c_del_driver(&f75375_driver); - - return status; + return i2c_add_driver(&f75375_driver); } static void __exit sensors_f75375_exit(void) { - i2c_del_driver(&f75375_legacy_driver); i2c_del_driver(&f75375_driver); } diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index 3db28450a3b3..7321a88a5112 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -55,7 +55,8 @@ again: return ERR_PTR(err); id = id & MAX_ID_MASK; - hwdev = device_create(hwmon_class, dev, MKDEV(0,0), HWMON_ID_FORMAT, id); + hwdev = device_create_drvdata(hwmon_class, dev, MKDEV(0, 0), NULL, + HWMON_ID_FORMAT, id); if (IS_ERR(hwdev)) { spin_lock(&idr_lock); diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 116287008083..100398b2c112 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -1,7 +1,7 @@ /* * lm63.c - driver for the National Semiconductor LM63 temperature sensor * with integrated fan control - * Copyright (C) 2004-2006 Jean Delvare <khali@linux-fr.org> + * Copyright (C) 2004-2008 Jean Delvare <khali@linux-fr.org> * Based on the lm90 driver. * * The LM63 is a sensor chip made by National Semiconductor. It measures @@ -128,24 +128,36 @@ I2C_CLIENT_INSMOD_1(lm63); * Functions declaration */ -static int lm63_attach_adapter(struct i2c_adapter *adapter); -static int lm63_detach_client(struct i2c_client *client); +static int lm63_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int lm63_remove(struct i2c_client *client); static struct lm63_data *lm63_update_device(struct device *dev); -static int lm63_detect(struct i2c_adapter *adapter, int address, int kind); +static int lm63_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); static void lm63_init_client(struct i2c_client *client); /* * Driver data (common to all clients) */ +static struct i2c_device_id lm63_id[] = { + { "lm63", lm63 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lm63_id); + static struct i2c_driver lm63_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "lm63", }, - .attach_adapter = lm63_attach_adapter, - .detach_client = lm63_detach_client, + .probe = lm63_probe, + .remove = lm63_remove, + .id_table = lm63_id, + .detect = lm63_detect, + .address_data = &addr_data, }; /* @@ -153,7 +165,6 @@ static struct i2c_driver lm63_driver = { */ struct lm63_data { - struct i2c_client client; struct device *hwmon_dev; struct mutex update_lock; char valid; /* zero until following fields are valid */ @@ -411,43 +422,14 @@ static const struct attribute_group lm63_group_fan1 = { * Real code */ -static int lm63_attach_adapter(struct i2c_adapter *adapter) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int lm63_detect(struct i2c_client *new_client, int kind, + struct i2c_board_info *info) { - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, lm63_detect); -} - -/* - * The following function does more than just detection. If detection - * succeeds, it also registers the new chip. - */ -static int lm63_detect(struct i2c_adapter *adapter, int address, int kind) -{ - struct i2c_client *new_client; - struct lm63_data *data; - int err = 0; + struct i2c_adapter *adapter = new_client->adapter; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - goto exit; - - if (!(data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - /* The common I2C client data is placed right before the - LM63-specific data. */ - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &lm63_driver; - new_client->flags = 0; - - /* Default to an LM63 if forced */ - if (kind == 0) - kind = lm63; + return -ENODEV; if (kind < 0) { /* must identify */ u8 man_id, chip_id, reg_config1, reg_config2; @@ -477,25 +459,38 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind) dev_dbg(&adapter->dev, "Unsupported chip " "(man_id=0x%02X, chip_id=0x%02X).\n", man_id, chip_id); - goto exit_free; + return -ENODEV; } } - strlcpy(new_client->name, "lm63", I2C_NAME_SIZE); + strlcpy(info->type, "lm63", I2C_NAME_SIZE); + + return 0; +} + +static int lm63_probe(struct i2c_client *new_client, + const struct i2c_device_id *id) +{ + struct lm63_data *data; + int err; + + data = kzalloc(sizeof(struct lm63_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(new_client, data); data->valid = 0; mutex_init(&data->update_lock); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; - /* Initialize the LM63 chip */ lm63_init_client(new_client); /* Register sysfs hooks */ if ((err = sysfs_create_group(&new_client->dev.kobj, &lm63_group))) - goto exit_detach; + goto exit_free; if (data->config & 0x04) { /* tachometer enabled */ if ((err = sysfs_create_group(&new_client->dev.kobj, &lm63_group_fan1))) @@ -513,8 +508,6 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind) exit_remove_files: sysfs_remove_group(&new_client->dev.kobj, &lm63_group); sysfs_remove_group(&new_client->dev.kobj, &lm63_group_fan1); -exit_detach: - i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -556,18 +549,14 @@ static void lm63_init_client(struct i2c_client *client) (data->config_fan & 0x20) ? "manual" : "auto"); } -static int lm63_detach_client(struct i2c_client *client) +static int lm63_remove(struct i2c_client *client) { struct lm63_data *data = i2c_get_clientdata(client); - int err; hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &lm63_group); sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1); - if ((err = i2c_detach_client(client))) - return err; - kfree(data); return 0; } diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c index 36d5a8c3ad8c..071926a7d48e 100644 --- a/drivers/hwmon/lm77.c +++ b/drivers/hwmon/lm77.c @@ -52,7 +52,6 @@ I2C_CLIENT_INSMOD_1(lm77); /* Each client has this additional data */ struct lm77_data { - struct i2c_client client; struct device *hwmon_dev; struct mutex update_lock; char valid; @@ -65,23 +64,34 @@ struct lm77_data { u8 alarms; }; -static int lm77_attach_adapter(struct i2c_adapter *adapter); -static int lm77_detect(struct i2c_adapter *adapter, int address, int kind); +static int lm77_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int lm77_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); static void lm77_init_client(struct i2c_client *client); -static int lm77_detach_client(struct i2c_client *client); +static int lm77_remove(struct i2c_client *client); static u16 lm77_read_value(struct i2c_client *client, u8 reg); static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value); static struct lm77_data *lm77_update_device(struct device *dev); +static struct i2c_device_id lm77_id[] = { + { "lm77", lm77 }, + { } +}; + /* This is the driver that will be inserted */ static struct i2c_driver lm77_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "lm77", }, - .attach_adapter = lm77_attach_adapter, - .detach_client = lm77_detach_client, + .probe = lm77_probe, + .remove = lm77_remove, + .id_table = lm77_id, + .detect = lm77_detect, + .address_data = &addr_data, }; /* straight from the datasheet */ @@ -215,13 +225,6 @@ static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2); static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1); -static int lm77_attach_adapter(struct i2c_adapter *adapter) -{ - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, lm77_detect); -} - static struct attribute *lm77_attributes[] = { &dev_attr_temp1_input.attr, &dev_attr_temp1_crit.attr, @@ -240,32 +243,15 @@ static const struct attribute_group lm77_group = { .attrs = lm77_attributes, }; -/* This function is called by i2c_probe */ -static int lm77_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int lm77_detect(struct i2c_client *new_client, int kind, + struct i2c_board_info *info) { - struct i2c_client *new_client; - struct lm77_data *data; - int err = 0; - const char *name = ""; + struct i2c_adapter *adapter = new_client->adapter; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) - goto exit; - - /* OK. For now, we presume we have a valid client. We now create the - client structure, even though we cannot fill it completely yet. - But it allows us to access lm77_{read,write}_value. */ - if (!(data = kzalloc(sizeof(struct lm77_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &lm77_driver; - new_client->flags = 0; + return -ENODEV; /* Here comes the remaining detection. Since the LM77 has no register dedicated to identification, we have to rely on the @@ -294,7 +280,7 @@ static int lm77_detect(struct i2c_adapter *adapter, int address, int kind) || i2c_smbus_read_word_data(new_client, i + 3) != crit || i2c_smbus_read_word_data(new_client, i + 4) != min || i2c_smbus_read_word_data(new_client, i + 5) != max) - goto exit_free; + return -ENODEV; /* sign bits */ if (((cur & 0x00f0) != 0xf0 && (cur & 0x00f0) != 0x0) @@ -302,51 +288,55 @@ static int lm77_detect(struct i2c_adapter *adapter, int address, int kind) || ((crit & 0x00f0) != 0xf0 && (crit & 0x00f0) != 0x0) || ((min & 0x00f0) != 0xf0 && (min & 0x00f0) != 0x0) || ((max & 0x00f0) != 0xf0 && (max & 0x00f0) != 0x0)) - goto exit_free; + return -ENODEV; /* unused bits */ if (conf & 0xe0) - goto exit_free; + return -ENODEV; /* 0x06 and 0x07 return the last read value */ cur = i2c_smbus_read_word_data(new_client, 0); if (i2c_smbus_read_word_data(new_client, 6) != cur || i2c_smbus_read_word_data(new_client, 7) != cur) - goto exit_free; + return -ENODEV; hyst = i2c_smbus_read_word_data(new_client, 2); if (i2c_smbus_read_word_data(new_client, 6) != hyst || i2c_smbus_read_word_data(new_client, 7) != hyst) - goto exit_free; + return -ENODEV; min = i2c_smbus_read_word_data(new_client, 4); if (i2c_smbus_read_word_data(new_client, 6) != min || i2c_smbus_read_word_data(new_client, 7) != min) - goto exit_free; + return -ENODEV; } - /* Determine the chip type - only one kind supported! */ - if (kind <= 0) - kind = lm77; + strlcpy(info->type, "lm77", I2C_NAME_SIZE); - if (kind == lm77) { - name = "lm77"; + return 0; +} + +static int lm77_probe(struct i2c_client *new_client, + const struct i2c_device_id *id) +{ + struct lm77_data *data; + int err; + + data = kzalloc(sizeof(struct lm77_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; } - /* Fill in the remaining client fields and put it into the global list */ - strlcpy(new_client->name, name, I2C_NAME_SIZE); + i2c_set_clientdata(new_client, data); data->valid = 0; mutex_init(&data->update_lock); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; - /* Initialize the LM77 chip */ lm77_init_client(new_client); /* Register sysfs hooks */ if ((err = sysfs_create_group(&new_client->dev.kobj, &lm77_group))) - goto exit_detach; + goto exit_free; data->hwmon_dev = hwmon_device_register(&new_client->dev); if (IS_ERR(data->hwmon_dev)) { @@ -358,20 +348,17 @@ static int lm77_detect(struct i2c_adapter *adapter, int address, int kind) exit_remove: sysfs_remove_group(&new_client->dev.kobj, &lm77_group); -exit_detach: - i2c_detach_client(new_client); exit_free: kfree(data); exit: return err; } -static int lm77_detach_client(struct i2c_client *client) +static int lm77_remove(struct i2c_client *client) { struct lm77_data *data = i2c_get_clientdata(client); hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &lm77_group); - i2c_detach_client(client); kfree(data); return 0; } diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c index 26c91c9d4769..373e5fce1e6d 100644 --- a/drivers/hwmon/lm80.c +++ b/drivers/hwmon/lm80.c @@ -108,7 +108,6 @@ static inline long TEMP_FROM_REG(u16 temp) */ struct lm80_data { - struct i2c_client client; struct device *hwmon_dev; struct mutex update_lock; char valid; /* !=0 if following fields are valid */ @@ -132,10 +131,12 @@ struct lm80_data { * Functions declaration */ -static int lm80_attach_adapter(struct i2c_adapter *adapter); -static int lm80_detect(struct i2c_adapter *adapter, int address, int kind); +static int lm80_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int lm80_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); static void lm80_init_client(struct i2c_client *client); -static int lm80_detach_client(struct i2c_client *client); +static int lm80_remove(struct i2c_client *client); static struct lm80_data *lm80_update_device(struct device *dev); static int lm80_read_value(struct i2c_client *client, u8 reg); static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value); @@ -144,12 +145,21 @@ static int lm80_write_value(struct i2c_client *client, u8 reg, u8 value); * Driver data (common to all clients) */ +static struct i2c_device_id lm80_id[] = { + { "lm80", lm80 }, + { } +}; + static struct i2c_driver lm80_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "lm80", }, - .attach_adapter = lm80_attach_adapter, - .detach_client = lm80_detach_client, + .probe = lm80_probe, + .remove = lm80_remove, + .id_table = lm80_id, + .detect = lm80_detect, + .address_data = &addr_data, }; /* @@ -383,13 +393,6 @@ static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 13); * Real code */ -static int lm80_attach_adapter(struct i2c_adapter *adapter) -{ - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, lm80_detect); -} - static struct attribute *lm80_attributes[] = { &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in1_min.dev_attr.attr, @@ -442,53 +445,46 @@ static const struct attribute_group lm80_group = { .attrs = lm80_attributes, }; -static int lm80_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int lm80_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { + struct i2c_adapter *adapter = client->adapter; int i, cur; - struct i2c_client *client; - struct lm80_data *data; - int err = 0; - const char *name; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - goto exit; - - /* OK. For now, we presume we have a valid client. We now create the - client structure, even though we cannot fill it completely yet. - But it allows us to access lm80_{read,write}_value. */ - if (!(data = kzalloc(sizeof(struct lm80_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - client = &data->client; - i2c_set_clientdata(client, data); - client->addr = address; - client->adapter = adapter; - client->driver = &lm80_driver; + return -ENODEV; /* Now, we do the remaining detection. It is lousy. */ if (lm80_read_value(client, LM80_REG_ALARM2) & 0xc0) - goto error_free; + return -ENODEV; for (i = 0x2a; i <= 0x3d; i++) { cur = i2c_smbus_read_byte_data(client, i); if ((i2c_smbus_read_byte_data(client, i + 0x40) != cur) || (i2c_smbus_read_byte_data(client, i + 0x80) != cur) || (i2c_smbus_read_byte_data(client, i + 0xc0) != cur)) - goto error_free; + return -ENODEV; } - /* Determine the chip type - only one kind supported! */ - kind = lm80; - name = "lm80"; + strlcpy(info->type, "lm80", I2C_NAME_SIZE); - /* Fill in the remaining client fields */ - strlcpy(client->name, name, I2C_NAME_SIZE); - mutex_init(&data->update_lock); + return 0; +} - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(client))) - goto error_free; +static int lm80_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct lm80_data *data; + int err; + + data = kzalloc(sizeof(struct lm80_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); /* Initialize the LM80 chip */ lm80_init_client(client); @@ -499,7 +495,7 @@ static int lm80_detect(struct i2c_adapter *adapter, int address, int kind) /* Register sysfs hooks */ if ((err = sysfs_create_group(&client->dev.kobj, &lm80_group))) - goto error_detach; + goto error_free; data->hwmon_dev = hwmon_device_register(&client->dev); if (IS_ERR(data->hwmon_dev)) { @@ -511,23 +507,18 @@ static int lm80_detect(struct i2c_adapter *adapter, int address, int kind) error_remove: sysfs_remove_group(&client->dev.kobj, &lm80_group); -error_detach: - i2c_detach_client(client); error_free: kfree(data); exit: return err; } -static int lm80_detach_client(struct i2c_client *client) +static int lm80_remove(struct i2c_client *client) { struct lm80_data *data = i2c_get_clientdata(client); - int err; hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &lm80_group); - if ((err = i2c_detach_client(client))) - return err; kfree(data); return 0; diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c index 6a8642fa25fb..8872ab25630c 100644 --- a/drivers/hwmon/lm83.c +++ b/drivers/hwmon/lm83.c @@ -1,7 +1,7 @@ /* * lm83.c - Part of lm_sensors, Linux kernel modules for hardware * monitoring - * Copyright (C) 2003-2006 Jean Delvare <khali@linux-fr.org> + * Copyright (C) 2003-2008 Jean Delvare <khali@linux-fr.org> * * Heavily inspired from the lm78, lm75 and adm1021 drivers. The LM83 is * a sensor chip made by National Semiconductor. It reports up to four @@ -118,21 +118,34 @@ static const u8 LM83_REG_W_HIGH[] = { * Functions declaration */ -static int lm83_attach_adapter(struct i2c_adapter *adapter); -static int lm83_detect(struct i2c_adapter *adapter, int address, int kind); -static int lm83_detach_client(struct i2c_client *client); +static int lm83_detect(struct i2c_client *new_client, int kind, + struct i2c_board_info *info); +static int lm83_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int lm83_remove(struct i2c_client *client); static struct lm83_data *lm83_update_device(struct device *dev); /* * Driver data (common to all clients) */ +static struct i2c_device_id lm83_id[] = { + { "lm83", lm83 }, + { "lm82", lm82 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lm83_id); + static struct i2c_driver lm83_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "lm83", }, - .attach_adapter = lm83_attach_adapter, - .detach_client = lm83_detach_client, + .probe = lm83_probe, + .remove = lm83_remove, + .id_table = lm83_id, + .detect = lm83_detect, + .address_data = &addr_data, }; /* @@ -140,7 +153,6 @@ static struct i2c_driver lm83_driver = { */ struct lm83_data { - struct i2c_client client; struct device *hwmon_dev; struct mutex update_lock; char valid; /* zero until following fields are valid */ @@ -278,40 +290,15 @@ static const struct attribute_group lm83_group_opt = { * Real code */ -static int lm83_attach_adapter(struct i2c_adapter *adapter) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int lm83_detect(struct i2c_client *new_client, int kind, + struct i2c_board_info *info) { - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, lm83_detect); -} - -/* - * The following function does more than just detection. If detection - * succeeds, it also registers the new chip. - */ -static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) -{ - struct i2c_client *new_client; - struct lm83_data *data; - int err = 0; + struct i2c_adapter *adapter = new_client->adapter; const char *name = ""; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - goto exit; - - if (!(data = kzalloc(sizeof(struct lm83_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - /* The common I2C client data is placed right after the - * LM83-specific data. */ - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &lm83_driver; - new_client->flags = 0; + return -ENODEV; /* Now we do the detection and identification. A negative kind * means that the driver was loaded with no force parameter @@ -335,8 +322,9 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) ((i2c_smbus_read_byte_data(new_client, LM83_REG_R_CONFIG) & 0x41) != 0x00)) { dev_dbg(&adapter->dev, - "LM83 detection failed at 0x%02x.\n", address); - goto exit_free; + "LM83 detection failed at 0x%02x.\n", + new_client->addr); + return -ENODEV; } } @@ -361,7 +349,7 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) dev_info(&adapter->dev, "Unsupported chip (man_id=0x%02X, " "chip_id=0x%02X).\n", man_id, chip_id); - goto exit_free; + return -ENODEV; } } @@ -372,15 +360,27 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) name = "lm82"; } - /* We can fill in the remaining client fields */ - strlcpy(new_client->name, name, I2C_NAME_SIZE); + strlcpy(info->type, name, I2C_NAME_SIZE); + + return 0; +} + +static int lm83_probe(struct i2c_client *new_client, + const struct i2c_device_id *id) +{ + struct lm83_data *data; + int err; + + data = kzalloc(sizeof(struct lm83_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(new_client, data); data->valid = 0; mutex_init(&data->update_lock); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; - /* * Register sysfs hooks * The LM82 can only monitor one external diode which is @@ -389,9 +389,9 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) */ if ((err = sysfs_create_group(&new_client->dev.kobj, &lm83_group))) - goto exit_detach; + goto exit_free; - if (kind == lm83) { + if (id->driver_data == lm83) { if ((err = sysfs_create_group(&new_client->dev.kobj, &lm83_group_opt))) goto exit_remove_files; @@ -408,26 +408,20 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind) exit_remove_files: sysfs_remove_group(&new_client->dev.kobj, &lm83_group); sysfs_remove_group(&new_client->dev.kobj, &lm83_group_opt); -exit_detach: - i2c_detach_client(new_client); exit_free: kfree(data); exit: return err; } -static int lm83_detach_client(struct i2c_client *client) +static int lm83_remove(struct i2c_client *client) { struct lm83_data *data = i2c_get_clientdata(client); - int err; hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &lm83_group); sysfs_remove_group(&client->dev.kobj, &lm83_group_opt); - if ((err = i2c_detach_client(client))) - return err; - kfree(data); return 0; } diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index d1a3da3dd8e0..9464d5fdc816 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -187,23 +187,40 @@ I2C_CLIENT_INSMOD_7(lm90, adm1032, lm99, lm86, max6657, adt7461, max6680); * Functions declaration */ -static int lm90_attach_adapter(struct i2c_adapter *adapter); -static int lm90_detect(struct i2c_adapter *adapter, int address, - int kind); +static int lm90_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int lm90_probe(struct i2c_client *client, + const struct i2c_device_id *id); static void lm90_init_client(struct i2c_client *client); -static int lm90_detach_client(struct i2c_client *client); +static int lm90_remove(struct i2c_client *client); static struct lm90_data *lm90_update_device(struct device *dev); /* * Driver data (common to all clients) */ +static struct i2c_device_id lm90_id[] = { + { "lm90", lm90 }, + { "adm1032", adm1032 }, + { "lm99", lm99 }, + { "lm86", lm86 }, + { "max6657", max6657 }, + { "adt7461", adt7461 }, + { "max6680", max6680 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lm90_id); + static struct i2c_driver lm90_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "lm90", }, - .attach_adapter = lm90_attach_adapter, - .detach_client = lm90_detach_client, + .probe = lm90_probe, + .remove = lm90_remove, + .id_table = lm90_id, + .detect = lm90_detect, + .address_data = &addr_data, }; /* @@ -211,7 +228,6 @@ static struct i2c_driver lm90_driver = { */ struct lm90_data { - struct i2c_client client; struct device *hwmon_dev; struct mutex update_lock; char valid; /* zero until following fields are valid */ @@ -477,40 +493,16 @@ static int lm90_read_reg(struct i2c_client* client, u8 reg, u8 *value) return 0; } -static int lm90_attach_adapter(struct i2c_adapter *adapter) -{ - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, lm90_detect); -} - -/* - * The following function does more than just detection. If detection - * succeeds, it also registers the new chip. - */ -static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int lm90_detect(struct i2c_client *new_client, int kind, + struct i2c_board_info *info) { - struct i2c_client *new_client; - struct lm90_data *data; - int err = 0; + struct i2c_adapter *adapter = new_client->adapter; + int address = new_client->addr; const char *name = ""; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - goto exit; - - if (!(data = kzalloc(sizeof(struct lm90_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - /* The common I2C client data is placed right before the - LM90-specific data. */ - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &lm90_driver; - new_client->flags = 0; + return -ENODEV; /* * Now we do the remaining detection. A negative kind means that @@ -538,7 +530,7 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) LM90_REG_R_CONFIG1)) < 0 || (reg_convrate = i2c_smbus_read_byte_data(new_client, LM90_REG_R_CONVRATE)) < 0) - goto exit_free; + return -ENODEV; if ((address == 0x4C || address == 0x4D) && man_id == 0x01) { /* National Semiconductor */ @@ -546,7 +538,7 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) if ((reg_config2 = i2c_smbus_read_byte_data(new_client, LM90_REG_R_CONFIG2)) < 0) - goto exit_free; + return -ENODEV; if ((reg_config1 & 0x2A) == 0x00 && (reg_config2 & 0xF8) == 0x00 @@ -610,10 +602,11 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) dev_info(&adapter->dev, "Unsupported chip (man_id=0x%02X, " "chip_id=0x%02X).\n", man_id, chip_id); - goto exit_free; + return -ENODEV; } } + /* Fill the i2c board info */ if (kind == lm90) { name = "lm90"; } else if (kind == adm1032) { @@ -621,7 +614,7 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) /* The ADM1032 supports PEC, but only if combined transactions are not used. */ if (i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) - new_client->flags |= I2C_CLIENT_PEC; + info->flags |= I2C_CLIENT_PEC; } else if (kind == lm99) { name = "lm99"; } else if (kind == lm86) { @@ -633,23 +626,39 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) } else if (kind == adt7461) { name = "adt7461"; } + strlcpy(info->type, name, I2C_NAME_SIZE); + + return 0; +} + +static int lm90_probe(struct i2c_client *new_client, + const struct i2c_device_id *id) +{ + struct i2c_adapter *adapter = to_i2c_adapter(new_client->dev.parent); + struct lm90_data *data; + int err; - /* We can fill in the remaining client fields */ - strlcpy(new_client->name, name, I2C_NAME_SIZE); - data->valid = 0; - data->kind = kind; + data = kzalloc(sizeof(struct lm90_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + i2c_set_clientdata(new_client, data); mutex_init(&data->update_lock); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; + /* Set the device type */ + data->kind = id->driver_data; + if (data->kind == adm1032) { + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) + new_client->flags &= ~I2C_CLIENT_PEC; + } /* Initialize the LM90 chip */ lm90_init_client(new_client); /* Register sysfs hooks */ if ((err = sysfs_create_group(&new_client->dev.kobj, &lm90_group))) - goto exit_detach; + goto exit_free; if (new_client->flags & I2C_CLIENT_PEC) { if ((err = device_create_file(&new_client->dev, &dev_attr_pec))) @@ -672,8 +681,6 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind) exit_remove_files: sysfs_remove_group(&new_client->dev.kobj, &lm90_group); device_remove_file(&new_client->dev, &dev_attr_pec); -exit_detach: - i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -710,10 +717,9 @@ static void lm90_init_client(struct i2c_client *client) i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1, config); } -static int lm90_detach_client(struct i2c_client *client) +static int lm90_remove(struct i2c_client *client) { struct lm90_data *data = i2c_get_clientdata(client); - int err; hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &lm90_group); @@ -722,9 +728,6 @@ static int lm90_detach_client(struct i2c_client *client) device_remove_file(&client->dev, &sensor_dev_attr_temp2_offset.dev_attr); - if ((err = i2c_detach_client(client))) - return err; - kfree(data); return 0; } diff --git a/drivers/hwmon/lm92.c b/drivers/hwmon/lm92.c index c31942e08246..0f981ac72a4d 100644 --- a/drivers/hwmon/lm92.c +++ b/drivers/hwmon/lm92.c @@ -1,6 +1,6 @@ /* * lm92 - Hardware monitoring driver - * Copyright (C) 2005 Jean Delvare <khali@linux-fr.org> + * Copyright (C) 2005-2008 Jean Delvare <khali@linux-fr.org> * * Based on the lm90 driver, with some ideas taken from the lm_sensors * lm92 driver as well. @@ -96,7 +96,6 @@ static struct i2c_driver lm92_driver; /* Client data (each client gets its own) */ struct lm92_data { - struct i2c_client client; struct device *hwmon_dev; struct mutex update_lock; char valid; /* zero until following fields are valid */ @@ -319,32 +318,15 @@ static const struct attribute_group lm92_group = { .attrs = lm92_attributes, }; -/* The following function does more than just detection. If detection - succeeds, it also registers the new chip. */ -static int lm92_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int lm92_detect(struct i2c_client *new_client, int kind, + struct i2c_board_info *info) { - struct i2c_client *new_client; - struct lm92_data *data; - int err = 0; - char *name; + struct i2c_adapter *adapter = new_client->adapter; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) - goto exit; - - if (!(data = kzalloc(sizeof(struct lm92_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - /* Fill in enough client fields so that we can read from the chip, - which is required for identication */ - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &lm92_driver; - new_client->flags = 0; + return -ENODEV; /* A negative kind means that the driver was loaded with no force parameter (default), so we must identify the chip. */ @@ -364,34 +346,36 @@ static int lm92_detect(struct i2c_adapter *adapter, int address, int kind) kind = lm92; /* No separate prefix */ } else - goto exit_free; - } else - if (kind == 0) /* Default to an LM92 if forced */ - kind = lm92; - - /* Give it the proper name */ - if (kind == lm92) { - name = "lm92"; - } else { /* Supposedly cannot happen */ - dev_dbg(&new_client->dev, "Kind out of range?\n"); - goto exit_free; + return -ENODEV; } - /* Fill in the remaining client fields */ - strlcpy(new_client->name, name, I2C_NAME_SIZE); + strlcpy(info->type, "lm92", I2C_NAME_SIZE); + + return 0; +} + +static int lm92_probe(struct i2c_client *new_client, + const struct i2c_device_id *id) +{ + struct lm92_data *data; + int err; + + data = kzalloc(sizeof(struct lm92_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(new_client, data); data->valid = 0; mutex_init(&data->update_lock); - /* Tell the i2c subsystem a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; - /* Initialize the chipset */ lm92_init_client(new_client); /* Register sysfs hooks */ if ((err = sysfs_create_group(&new_client->dev.kobj, &lm92_group))) - goto exit_detach; + goto exit_free; data->hwmon_dev = hwmon_device_register(&new_client->dev); if (IS_ERR(data->hwmon_dev)) { @@ -403,32 +387,19 @@ static int lm92_detect(struct i2c_adapter *adapter, int address, int kind) exit_remove: sysfs_remove_group(&new_client->dev.kobj, &lm92_group); -exit_detach: - i2c_detach_client(new_client); exit_free: kfree(data); exit: return err; } -static int lm92_attach_adapter(struct i2c_adapter *adapter) -{ - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, lm92_detect); -} - -static int lm92_detach_client(struct i2c_client *client) +static int lm92_remove(struct i2c_client *client) { struct lm92_data *data = i2c_get_clientdata(client); - int err; hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &lm92_group); - if ((err = i2c_detach_client(client))) - return err; - kfree(data); return 0; } @@ -438,12 +409,22 @@ static int lm92_detach_client(struct i2c_client *client) * Module and driver stuff */ +static struct i2c_device_id lm92_id[] = { + { "lm92", lm92 }, + /* max6635 could be added here */ + { } +}; + static struct i2c_driver lm92_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "lm92", }, - .attach_adapter = lm92_attach_adapter, - .detach_client = lm92_detach_client, + .probe = lm92_probe, + .remove = lm92_remove, + .id_table = lm92_id, + .detect = lm92_detect, + .address_data = &addr_data, }; static int __init sensors_lm92_init(void) diff --git a/drivers/hwmon/max1619.c b/drivers/hwmon/max1619.c index 7e7267a04544..8130944f254c 100644 --- a/drivers/hwmon/max1619.c +++ b/drivers/hwmon/max1619.c @@ -79,23 +79,33 @@ I2C_CLIENT_INSMOD_1(max1619); * Functions declaration */ -static int max1619_attach_adapter(struct i2c_adapter *adapter); -static int max1619_detect(struct i2c_adapter *adapter, int address, - int kind); +static int max1619_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int max1619_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); static void max1619_init_client(struct i2c_client *client); -static int max1619_detach_client(struct i2c_client *client); +static int max1619_remove(struct i2c_client *client); static struct max1619_data *max1619_update_device(struct device *dev); /* * Driver data (common to all clients) */ +static struct i2c_device_id max1619_id[] = { + { "max1619", max1619 }, + { } +}; + static struct i2c_driver max1619_driver = { + .class = I2C_CLASS_HWMON, .driver = { .name = "max1619", }, - .attach_adapter = max1619_attach_adapter, - .detach_client = max1619_detach_client, + .probe = max1619_probe, + .remove = max1619_remove, + .id_table = max1619_id, + .detect = max1619_detect, + .address_data = &addr_data, }; /* @@ -103,7 +113,6 @@ static struct i2c_driver max1619_driver = { */ struct max1619_data { - struct i2c_client client; struct device *hwmon_dev; struct mutex update_lock; char valid; /* zero until following fields are valid */ @@ -208,41 +217,15 @@ static const struct attribute_group max1619_group = { * Real code */ -static int max1619_attach_adapter(struct i2c_adapter *adapter) -{ - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, max1619_detect); -} - -/* - * The following function does more than just detection. If detection - * succeeds, it also registers the new chip. - */ -static int max1619_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int max1619_detect(struct i2c_client *new_client, int kind, + struct i2c_board_info *info) { - struct i2c_client *new_client; - struct max1619_data *data; - int err = 0; - const char *name = ""; + struct i2c_adapter *adapter = new_client->adapter; u8 reg_config=0, reg_convrate=0, reg_status=0; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - goto exit; - - if (!(data = kzalloc(sizeof(struct max1619_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - /* The common I2C client data is placed right before the - MAX1619-specific data. */ - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &max1619_driver; - new_client->flags = 0; + return -ENODEV; /* * Now we do the remaining detection. A negative kind means that @@ -265,8 +248,8 @@ static int max1619_detect(struct i2c_adapter *adapter, int address, int kind) || reg_convrate > 0x07 || (reg_status & 0x61 ) !=0x00) { dev_dbg(&adapter->dev, "MAX1619 detection failed at 0x%02x.\n", - address); - goto exit_free; + new_client->addr); + return -ENODEV; } } @@ -285,28 +268,37 @@ static int max1619_detect(struct i2c_adapter *adapter, int address, int kind) dev_info(&adapter->dev, "Unsupported chip (man_id=0x%02X, " "chip_id=0x%02X).\n", man_id, chip_id); - goto exit_free; + return -ENODEV; } } - if (kind == max1619) - name = "max1619"; + strlcpy(info->type, "max1619", I2C_NAME_SIZE); + + return 0; +} + +static int max1619_probe(struct i2c_client *new_client, + const struct i2c_device_id *id) +{ + struct max1619_data *data; + int err; + + data = kzalloc(sizeof(struct max1619_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } - /* We can fill in the remaining client fields */ - strlcpy(new_client->name, name, I2C_NAME_SIZE); + i2c_set_clientdata(new_client, data); data->valid = 0; mutex_init(&data->update_lock); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; - /* Initialize the MAX1619 chip */ max1619_init_client(new_client); /* Register sysfs hooks */ if ((err = sysfs_create_group(&new_client->dev.kobj, &max1619_group))) - goto exit_detach; + goto exit_free; data->hwmon_dev = hwmon_device_register(&new_client->dev); if (IS_ERR(data->hwmon_dev)) { @@ -318,8 +310,6 @@ static int max1619_detect(struct i2c_adapter *adapter, int address, int kind) exit_remove_files: sysfs_remove_group(&new_client->dev.kobj, &max1619_group); -exit_detach: - i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -341,17 +331,13 @@ static void max1619_init_client(struct i2c_client *client) config & 0xBF); /* run */ } -static int max1619_detach_client(struct i2c_client *client) +static int max1619_remove(struct i2c_client *client) { struct max1619_data *data = i2c_get_clientdata(client); - int err; hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&client->dev.kobj, &max1619_group); - if ((err = i2c_detach_client(client))) - return err; - kfree(data); return 0; } diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index 35812823787b..eb8f72ca02f4 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -320,7 +320,7 @@ static int try_address(struct i2c_adapter *i2c_adap, unsigned char addr, int retries) { struct i2c_algo_bit_data *adap = i2c_adap->algo_data; - int i, ret = -1; + int i, ret = 0; for (i = 0; i <= retries; i++) { ret = i2c_outb(i2c_adap, addr); @@ -508,7 +508,7 @@ static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) addr ^= 1; ret = try_address(i2c_adap, addr, retries); if ((ret != 1) && !nak_ok) - return -EREMOTEIO; + return -ENXIO; } return 0; diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c index e954a20b97a6..d50b329a3c94 100644 --- a/drivers/i2c/algos/i2c-algo-pca.c +++ b/drivers/i2c/algos/i2c-algo-pca.c @@ -182,7 +182,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap, } if (state != 0xf8) { dev_dbg(&i2c_adap->dev, "bus is not idle. status is %#04x\n", state); - return -EIO; + return -EAGAIN; } DEB1("{{{ XFER %d messages\n", num); diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c index 8907b0191677..1e328d19cd6d 100644 --- a/drivers/i2c/algos/i2c-algo-pcf.c +++ b/drivers/i2c/algos/i2c-algo-pcf.c @@ -78,6 +78,36 @@ static void i2c_stop(struct i2c_algo_pcf_data *adap) set_pcf(adap, 1, I2C_PCF_STOP); } +static void handle_lab(struct i2c_algo_pcf_data *adap, const int *status) +{ + DEB2(printk(KERN_INFO + "i2c-algo-pcf.o: lost arbitration (CSR 0x%02x)\n", + *status)); + + /* Cleanup from LAB -- reset and enable ESO. + * This resets the PCF8584; since we've lost the bus, no + * further attempts should be made by callers to clean up + * (no i2c_stop() etc.) + */ + set_pcf(adap, 1, I2C_PCF_PIN); + set_pcf(adap, 1, I2C_PCF_ESO); + + /* We pause for a time period sufficient for any running + * I2C transaction to complete -- the arbitration logic won't + * work properly until the next START is seen. + * It is assumed the bus driver or client has set a proper value. + * + * REVISIT: should probably use msleep instead of mdelay if we + * know we can sleep. + */ + if (adap->lab_mdelay) + mdelay(adap->lab_mdelay); + + DEB2(printk(KERN_INFO + "i2c-algo-pcf.o: reset LAB condition (CSR 0x%02x)\n", + get_pcf(adap, 1))); +} + static int wait_for_bb(struct i2c_algo_pcf_data *adap) { int timeout = DEF_TIMEOUT; @@ -109,23 +139,7 @@ static int wait_for_pin(struct i2c_algo_pcf_data *adap, int *status) { *status = get_pcf(adap, 1); } if (*status & I2C_PCF_LAB) { - DEB2(printk(KERN_INFO - "i2c-algo-pcf.o: lost arbitration (CSR 0x%02x)\n", - *status)); - /* Cleanup from LAB-- reset and enable ESO. - * This resets the PCF8584; since we've lost the bus, no - * further attempts should be made by callers to clean up - * (no i2c_stop() etc.) - */ - set_pcf(adap, 1, I2C_PCF_PIN); - set_pcf(adap, 1, I2C_PCF_ESO); - /* TODO: we should pause for a time period sufficient for any - * running I2C transaction to complete-- the arbitration - * logic won't work properly until the next START is seen. - */ - DEB2(printk(KERN_INFO - "i2c-algo-pcf.o: reset LAB condition (CSR 0x%02x)\n", - get_pcf(adap,1))); + handle_lab(adap, status); return(-EINTR); } #endif diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 48438cc5d0ca..4aeefa6d5ac7 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -4,6 +4,8 @@ menu "I2C Hardware Bus support" +comment "PC SMBus host controller drivers" + config I2C_ALI1535 tristate "ALI 1535" depends on PCI @@ -73,6 +75,238 @@ config I2C_AMD8111 This driver can also be built as a module. If so, the module will be called i2c-amd8111. +config I2C_I801 + tristate "Intel 82801 (ICH)" + depends on PCI + help + If you say yes to this option, support will be included for the Intel + 801 family of mainboard I2C interfaces. Specifically, the following + versions of the chipset are supported: + 82801AA + 82801AB + 82801BA + 82801CA/CAM + 82801DB + 82801EB/ER (ICH5/ICH5R) + 6300ESB + ICH6 + ICH7 + ESB2 + ICH8 + ICH9 + Tolapai + ICH10 + + This driver can also be built as a module. If so, the module + will be called i2c-i801. + +config I2C_PIIX4 + tristate "Intel PIIX4 and compatible (ATI/Serverworks/Broadcom/SMSC)" + depends on PCI + help + If you say yes to this option, support will be included for the Intel + PIIX4 family of mainboard I2C interfaces. Specifically, the following + versions of the chipset are supported (note that Serverworks is part + of Broadcom): + Intel PIIX4 + Intel 440MX + ATI IXP200 + ATI IXP300 + ATI IXP400 + ATI SB600 + ATI SB700 + ATI SB800 + Serverworks OSB4 + Serverworks CSB5 + Serverworks CSB6 + Serverworks HT-1000 + SMSC Victory66 + + This driver can also be built as a module. If so, the module + will be called i2c-piix4. + +config I2C_NFORCE2 + tristate "Nvidia nForce2, nForce3 and nForce4" + depends on PCI + help + If you say yes to this option, support will be included for the Nvidia + nForce2, nForce3 and nForce4 families of mainboard I2C interfaces. + + This driver can also be built as a module. If so, the module + will be called i2c-nforce2. + +config I2C_NFORCE2_S4985 + tristate "SMBus multiplexing on the Tyan S4985" + depends on I2C_NFORCE2 && EXPERIMENTAL + help + Enabling this option will add specific SMBus support for the Tyan + S4985 motherboard. On this 4-CPU board, the SMBus is multiplexed + over 4 different channels, where the various memory module EEPROMs + live. Saying yes here will give you access to these in addition + to the trunk. + + This driver can also be built as a module. If so, the module + will be called i2c-nforce2-s4985. + +config I2C_SIS5595 + tristate "SiS 5595" + depends on PCI + help + If you say yes to this option, support will be included for the + SiS5595 SMBus (a subset of I2C) interface. + + This driver can also be built as a module. If so, the module + will be called i2c-sis5595. + +config I2C_SIS630 + tristate "SiS 630/730" + depends on PCI + help + If you say yes to this option, support will be included for the + SiS630 and SiS730 SMBus (a subset of I2C) interface. + + This driver can also be built as a module. If so, the module + will be called i2c-sis630. + +config I2C_SIS96X + tristate "SiS 96x" + depends on PCI + help + If you say yes to this option, support will be included for the SiS + 96x SMBus (a subset of I2C) interfaces. Specifically, the following + chipsets are supported: + 645/961 + 645DX/961 + 645DX/962 + 648/961 + 650/961 + 735 + 745 + + This driver can also be built as a module. If so, the module + will be called i2c-sis96x. + +config I2C_VIA + tristate "VIA VT82C586B" + depends on PCI && EXPERIMENTAL + select I2C_ALGOBIT + help + If you say yes to this option, support will be included for the VIA + 82C586B I2C interface + + This driver can also be built as a module. If so, the module + will be called i2c-via. + +config I2C_VIAPRO + tristate "VIA VT82C596/82C686/82xx and CX700" + depends on PCI + help + If you say yes to this option, support will be included for the VIA + VT82C596 and later SMBus interface. Specifically, the following + chipsets are supported: + VT82C596A/B + VT82C686A/B + VT8231 + VT8233/A + VT8235 + VT8237R/A/S + VT8251 + CX700 + + This driver can also be built as a module. If so, the module + will be called i2c-viapro. + +comment "Graphics adapter I2C/DDC channel drivers" + +config I2C_VOODOO3 + tristate "Voodoo 3" + depends on PCI + select I2C_ALGOBIT + help + If you say yes to this option, support will be included for the + Voodoo 3 I2C interface. + + This driver can also be built as a module. If so, the module + will be called i2c-voodoo3. + +comment "External I2C/SMBus adapter drivers" + +config I2C_PARPORT + tristate "Parallel port adapter" + depends on PARPORT + select I2C_ALGOBIT + help + This supports parallel port I2C adapters such as the ones made by + Philips or Velleman, Analog Devices evaluation boards, and more. + Basically any adapter using the parallel port as an I2C bus with + no extra chipset is supported by this driver, or could be. + + This driver is a replacement for (and was inspired by) an older + driver named i2c-philips-par. The new driver supports more devices, + and makes it easier to add support for new devices. + + An adapter type parameter is now mandatory. Please read the file + Documentation/i2c/busses/i2c-parport for details. + + Another driver exists, named i2c-parport-light, which doesn't depend + on the parport driver. This is meant for embedded systems. Don't say + Y here if you intend to say Y or M there. + + This support is also available as a module. If so, the module + will be called i2c-parport. + +config I2C_PARPORT_LIGHT + tristate "Parallel port adapter (light)" + select I2C_ALGOBIT + help + This supports parallel port I2C adapters such as the ones made by + Philips or Velleman, Analog Devices evaluation boards, and more. + Basically any adapter using the parallel port as an I2C bus with + no extra chipset is supported by this driver, or could be. + + This driver is a light version of i2c-parport. It doesn't depend + on the parport driver, and uses direct I/O access instead. This + might be preferred on embedded systems where wasting memory for + the clean but heavy parport handling is not an option. The + drawback is a reduced portability and the impossibility to + daisy-chain other parallel port devices. + + Don't say Y here if you said Y or M to i2c-parport. Saying M to + both is possible but both modules should not be loaded at the same + time. + + This support is also available as a module. If so, the module + will be called i2c-parport-light. + +config I2C_TAOS_EVM + tristate "TAOS evaluation module" + depends on EXPERIMENTAL + select SERIO + select SERIO_SERPORT + default n + help + This supports TAOS evaluation modules on serial port. In order to + use this driver, you will need the inputattach tool, which is part + of the input-utils package. + + If unsure, say N. + + This support is also available as a module. If so, the module + will be called i2c-taos-evm. + +config I2C_TINY_USB + tristate "Tiny-USB adapter" + depends on USB + help + If you say yes to this option, support will be included for the + i2c-tiny-usb, a simple do-it-yourself USB to I2C interface. See + http://www.harbaum.org/till/i2c_tiny_usb for hardware details. + + This driver can also be built as a module. If so, the module + will be called i2c-tiny-usb. + +comment "Other I2C/SMBus bus drivers" + config I2C_AT91 tristate "Atmel AT91 I2C Two-Wire interface (TWI)" depends on ARCH_AT91 && EXPERIMENTAL && BROKEN @@ -101,10 +335,9 @@ config I2C_AU1550 config I2C_BLACKFIN_TWI tristate "Blackfin TWI I2C support" depends on BLACKFIN + depends on !BF561 && !BF531 && !BF532 && !BF533 help - This is the TWI I2C device driver for Blackfin BF522, BF525, - BF527, BF534, BF536, BF537 and BF54x. For other Blackfin processors, - please don't use this driver. + This is the I2C bus driver for Blackfin on-chip TWI interface. This driver can also be built as a module. If so, the module will be called i2c-bfin-twi. @@ -117,6 +350,16 @@ config I2C_BLACKFIN_TWI_CLK_KHZ help The unit of the TWI clock is kHz. +config I2C_CPM + tristate "Freescale CPM1 or CPM2 (MPC8xx/826x)" + depends on (CPM1 || CPM2) && OF_I2C + help + This supports the use of the I2C interface on Freescale + processors with CPM1 or CPM2. + + This driver can also be built as a module. If so, the module + will be called i2c-cpm. + config I2C_DAVINCI tristate "DaVinci I2C driver" depends on ARCH_DAVINCI @@ -161,51 +404,6 @@ config I2C_HYDRA This support is also available as a module. If so, the module will be called i2c-hydra. -config I2C_I801 - tristate "Intel 82801 (ICH)" - depends on PCI - help - If you say yes to this option, support will be included for the Intel - 801 family of mainboard I2C interfaces. Specifically, the following - versions of the chipset are supported: - 82801AA - 82801AB - 82801BA - 82801CA/CAM - 82801DB - 82801EB/ER (ICH5/ICH5R) - 6300ESB - ICH6 - ICH7 - ESB2 - ICH8 - ICH9 - Tolapai - ICH10 - - This driver can also be built as a module. If so, the module - will be called i2c-i801. - -config I2C_I810 - tristate "Intel 810/815 (DEPRECATED)" - default n - depends on PCI - select I2C_ALGOBIT - help - If you say yes to this option, support will be included for the Intel - 810/815 family of mainboard I2C interfaces. Specifically, the - following versions of the chipset are supported: - i810AA - i810AB - i810E - i815 - i845G - - This driver is deprecated in favor of the i810fb and intelfb drivers. - - This driver can also be built as a module. If so, the module - will be called i2c-i810. - config I2C_PXA tristate "Intel PXA2XX I2C adapter (EXPERIMENTAL)" depends on EXPERIMENTAL && ARCH_PXA @@ -222,31 +420,6 @@ config I2C_PXA_SLAVE is necessary for systems where the PXA may be a target on the I2C bus. -config I2C_PIIX4 - tristate "Intel PIIX4 and compatible (ATI/Serverworks/Broadcom/SMSC)" - depends on PCI - help - If you say yes to this option, support will be included for the Intel - PIIX4 family of mainboard I2C interfaces. Specifically, the following - versions of the chipset are supported (note that Serverworks is part - of Broadcom): - Intel PIIX4 - Intel 440MX - ATI IXP200 - ATI IXP300 - ATI IXP400 - ATI SB600 - ATI SB700 - ATI SB800 - Serverworks OSB4 - Serverworks CSB5 - Serverworks CSB6 - Serverworks HT-1000 - SMSC Victory66 - - This driver can also be built as a module. If so, the module - will be called i2c-piix4. - config I2C_IBM_IIC tristate "IBM PPC 4xx on-chip I2C interface" depends on 4xx @@ -267,6 +440,16 @@ config I2C_IOP3XX This driver can also be built as a module. If so, the module will be called i2c-iop3xx. +config I2C_ISCH + tristate "Intel SCH SMBus 1.0" + depends on PCI + help + Say Y here if you want to use SMBus controller on the Intel SCH + based systems. + + This driver can also be built as a module. If so, the module + will be called i2c-isch. + config I2C_IXP2000 tristate "IXP2000 GPIO-Based I2C Interface (DEPRECATED)" depends on ARCH_IXP2000 @@ -305,16 +488,6 @@ config I2C_MPC This driver can also be built as a module. If so, the module will be called i2c-mpc. -config I2C_NFORCE2 - tristate "Nvidia nForce2, nForce3 and nForce4" - depends on PCI - help - If you say yes to this option, support will be included for the Nvidia - nForce2, nForce3 and nForce4 families of mainboard I2C interfaces. - - This driver can also be built as a module. If so, the module - will be called i2c-nforce2. - config I2C_OCORES tristate "OpenCores I2C Controller" depends on EXPERIMENTAL @@ -336,77 +509,12 @@ config I2C_OMAP Like OMAP1510/1610/1710/5912 and OMAP242x. For details see http://www.ti.com/omap. -config I2C_PARPORT - tristate "Parallel port adapter" - depends on PARPORT - select I2C_ALGOBIT - help - This supports parallel port I2C adapters such as the ones made by - Philips or Velleman, Analog Devices evaluation boards, and more. - Basically any adapter using the parallel port as an I2C bus with - no extra chipset is supported by this driver, or could be. - - This driver is a replacement for (and was inspired by) an older - driver named i2c-philips-par. The new driver supports more devices, - and makes it easier to add support for new devices. - - An adapter type parameter is now mandatory. Please read the file - Documentation/i2c/busses/i2c-parport for details. - - Another driver exists, named i2c-parport-light, which doesn't depend - on the parport driver. This is meant for embedded systems. Don't say - Y here if you intend to say Y or M there. - - This support is also available as a module. If so, the module - will be called i2c-parport. - -config I2C_PARPORT_LIGHT - tristate "Parallel port adapter (light)" - select I2C_ALGOBIT - help - This supports parallel port I2C adapters such as the ones made by - Philips or Velleman, Analog Devices evaluation boards, and more. - Basically any adapter using the parallel port as an I2C bus with - no extra chipset is supported by this driver, or could be. - - This driver is a light version of i2c-parport. It doesn't depend - on the parport driver, and uses direct I/O access instead. This - might be preferred on embedded systems where wasting memory for - the clean but heavy parport handling is not an option. The - drawback is a reduced portability and the impossibility to - daisy-chain other parallel port devices. - - Don't say Y here if you said Y or M to i2c-parport. Saying M to - both is possible but both modules should not be loaded at the same - time. - - This support is also available as a module. If so, the module - will be called i2c-parport-light. - config I2C_PASEMI tristate "PA Semi SMBus interface" depends on PPC_PASEMI && PCI help Supports the PA Semi PWRficient on-chip SMBus interfaces. -config I2C_PROSAVAGE - tristate "S3/VIA (Pro)Savage (DEPRECATED)" - default n - depends on PCI - select I2C_ALGOBIT - help - If you say yes to this option, support will be included for the - I2C bus and DDC bus of the S3VIA embedded Savage4 and ProSavage8 - graphics processors. - chipsets supported: - S3/VIA KM266/VT8375 aka ProSavage8 - S3/VIA KM133/VT8365 aka Savage4 - - This driver is deprecated in favor of the savagefb driver. - - This support is also available as a module. If so, the module - will be called i2c-prosavage. - config I2C_S3C2410 tristate "S3C2410 I2C Driver" depends on ARCH_S3C2410 @@ -414,20 +522,6 @@ config I2C_S3C2410 Say Y here to include support for I2C controller in the Samsung S3C2410 based System-on-Chip devices. -config I2C_SAVAGE4 - tristate "S3 Savage 4 (DEPRECATED)" - default n - depends on PCI - select I2C_ALGOBIT - help - If you say yes to this option, support will be included for the - S3 Savage 4 I2C interface. - - This driver is deprecated in favor of the savagefb driver. - - This driver can also be built as a module. If so, the module - will be called i2c-savage4. - config I2C_SIBYTE tristate "SiByte SMBus interface" depends on SIBYTE_SB1xxx_SOC @@ -489,60 +583,6 @@ config SCx200_ACB This support is also available as a module. If so, the module will be called scx200_acb. -config I2C_SIS5595 - tristate "SiS 5595" - depends on PCI - help - If you say yes to this option, support will be included for the - SiS5595 SMBus (a subset of I2C) interface. - - This driver can also be built as a module. If so, the module - will be called i2c-sis5595. - -config I2C_SIS630 - tristate "SiS 630/730" - depends on PCI - help - If you say yes to this option, support will be included for the - SiS630 and SiS730 SMBus (a subset of I2C) interface. - - This driver can also be built as a module. If so, the module - will be called i2c-sis630. - -config I2C_SIS96X - tristate "SiS 96x" - depends on PCI - help - If you say yes to this option, support will be included for the SiS - 96x SMBus (a subset of I2C) interfaces. Specifically, the following - chipsets are supported: - 645/961 - 645DX/961 - 645DX/962 - 648/961 - 650/961 - 735 - 745 - - This driver can also be built as a module. If so, the module - will be called i2c-sis96x. - -config I2C_TAOS_EVM - tristate "TAOS evaluation module" - depends on EXPERIMENTAL - select SERIO - select SERIO_SERPORT - default n - help - This supports TAOS evaluation modules on serial port. In order to - use this driver, you will need the inputattach tool, which is part - of the input-utils package. - - If unsure, say N. - - This support is also available as a module. If so, the module - will be called i2c-taos-evm. - config I2C_STUB tristate "I2C/SMBus Test Stub" depends on EXPERIMENTAL && m @@ -556,17 +596,6 @@ config I2C_STUB If you don't know what to do here, definitely say N. -config I2C_TINY_USB - tristate "I2C-Tiny-USB" - depends on USB - help - If you say yes to this option, support will be included for the - i2c-tiny-usb, a simple do-it-yourself USB to I2C interface. See - http://www.harbaum.org/till/i2c_tiny_usb for hardware details. - - This driver can also be built as a module. If so, the module - will be called i2c-tiny-usb. - config I2C_VERSATILE tristate "ARM Versatile/Realview I2C bus support" depends on ARCH_VERSATILE || ARCH_REALVIEW @@ -588,47 +617,6 @@ config I2C_ACORN If you don't know, say Y. -config I2C_VIA - tristate "VIA 82C586B" - depends on PCI && EXPERIMENTAL - select I2C_ALGOBIT - help - If you say yes to this option, support will be included for the VIA - 82C586B I2C interface - - This driver can also be built as a module. If so, the module - will be called i2c-via. - -config I2C_VIAPRO - tristate "VIA VT82C596/82C686/82xx and CX700" - depends on PCI - help - If you say yes to this option, support will be included for the VIA - VT82C596 and later SMBus interface. Specifically, the following - chipsets are supported: - VT82C596A/B - VT82C686A/B - VT8231 - VT8233/A - VT8235 - VT8237R/A/S - VT8251 - CX700 - - This driver can also be built as a module. If so, the module - will be called i2c-viapro. - -config I2C_VOODOO3 - tristate "Voodoo 3" - depends on PCI - select I2C_ALGOBIT - help - If you say yes to this option, support will be included for the - Voodoo 3 I2C interface. - - This driver can also be built as a module. If so, the module - will be called i2c-voodoo3. - config I2C_PCA_ISA tristate "PCA9564 on an ISA bus" depends on ISA diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index e8c882a5ea66..bc6fc364459d 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -2,57 +2,64 @@ # Makefile for the i2c bus drivers. # +# PC SMBus host controller drivers obj-$(CONFIG_I2C_ALI1535) += i2c-ali1535.o obj-$(CONFIG_I2C_ALI1563) += i2c-ali1563.o obj-$(CONFIG_I2C_ALI15X3) += i2c-ali15x3.o obj-$(CONFIG_I2C_AMD756) += i2c-amd756.o obj-$(CONFIG_I2C_AMD756_S4882) += i2c-amd756-s4882.o obj-$(CONFIG_I2C_AMD8111) += i2c-amd8111.o +obj-$(CONFIG_I2C_I801) += i2c-i801.o +obj-$(CONFIG_I2C_NFORCE2) += i2c-nforce2.o +obj-$(CONFIG_I2C_NFORCE2_S4985) += i2c-nforce2-s4985.o +obj-$(CONFIG_I2C_PIIX4) += i2c-piix4.o +obj-$(CONFIG_I2C_SIS5595) += i2c-sis5595.o +obj-$(CONFIG_I2C_SIS630) += i2c-sis630.o +obj-$(CONFIG_I2C_SIS96X) += i2c-sis96x.o +obj-$(CONFIG_I2C_VIA) += i2c-via.o +obj-$(CONFIG_I2C_VIAPRO) += i2c-viapro.o + +# Graphics adapter I2C/DDC channel drivers +obj-$(CONFIG_I2C_VOODOO3) += i2c-voodoo3.o + +# External I2C/SMBus adapter drivers +obj-$(CONFIG_I2C_PARPORT) += i2c-parport.o +obj-$(CONFIG_I2C_PARPORT_LIGHT) += i2c-parport-light.o +obj-$(CONFIG_I2C_TAOS_EVM) += i2c-taos-evm.o +obj-$(CONFIG_I2C_TINY_USB) += i2c-tiny-usb.o + +# Other I2C/SMBus bus drivers +obj-$(CONFIG_I2C_ACORN) += i2c-acorn.o obj-$(CONFIG_I2C_AT91) += i2c-at91.o obj-$(CONFIG_I2C_AU1550) += i2c-au1550.o obj-$(CONFIG_I2C_BLACKFIN_TWI) += i2c-bfin-twi.o +obj-$(CONFIG_I2C_CPM) += i2c-cpm.o obj-$(CONFIG_I2C_DAVINCI) += i2c-davinci.o obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o obj-$(CONFIG_I2C_GPIO) += i2c-gpio.o obj-$(CONFIG_I2C_HYDRA) += i2c-hydra.o -obj-$(CONFIG_I2C_I801) += i2c-i801.o -obj-$(CONFIG_I2C_I810) += i2c-i810.o obj-$(CONFIG_I2C_IBM_IIC) += i2c-ibm_iic.o obj-$(CONFIG_I2C_IOP3XX) += i2c-iop3xx.o +obj-$(CONFIG_I2C_ISCH) += i2c-isch.o obj-$(CONFIG_I2C_IXP2000) += i2c-ixp2000.o -obj-$(CONFIG_I2C_POWERMAC) += i2c-powermac.o obj-$(CONFIG_I2C_MPC) += i2c-mpc.o obj-$(CONFIG_I2C_MV64XXX) += i2c-mv64xxx.o -obj-$(CONFIG_I2C_NFORCE2) += i2c-nforce2.o obj-$(CONFIG_I2C_OCORES) += i2c-ocores.o obj-$(CONFIG_I2C_OMAP) += i2c-omap.o -obj-$(CONFIG_I2C_PARPORT) += i2c-parport.o -obj-$(CONFIG_I2C_PARPORT_LIGHT) += i2c-parport-light.o obj-$(CONFIG_I2C_PASEMI) += i2c-pasemi.o obj-$(CONFIG_I2C_PCA_ISA) += i2c-pca-isa.o obj-$(CONFIG_I2C_PCA_PLATFORM) += i2c-pca-platform.o -obj-$(CONFIG_I2C_PIIX4) += i2c-piix4.o obj-$(CONFIG_I2C_PMCMSP) += i2c-pmcmsp.o obj-$(CONFIG_I2C_PNX) += i2c-pnx.o -obj-$(CONFIG_I2C_PROSAVAGE) += i2c-prosavage.o +obj-$(CONFIG_I2C_POWERMAC) += i2c-powermac.o obj-$(CONFIG_I2C_PXA) += i2c-pxa.o obj-$(CONFIG_I2C_S3C2410) += i2c-s3c2410.o -obj-$(CONFIG_I2C_SAVAGE4) += i2c-savage4.o obj-$(CONFIG_I2C_SH7760) += i2c-sh7760.o obj-$(CONFIG_I2C_SH_MOBILE) += i2c-sh_mobile.o obj-$(CONFIG_I2C_SIBYTE) += i2c-sibyte.o obj-$(CONFIG_I2C_SIMTEC) += i2c-simtec.o -obj-$(CONFIG_I2C_SIS5595) += i2c-sis5595.o -obj-$(CONFIG_I2C_SIS630) += i2c-sis630.o -obj-$(CONFIG_I2C_SIS96X) += i2c-sis96x.o obj-$(CONFIG_I2C_STUB) += i2c-stub.o -obj-$(CONFIG_I2C_TAOS_EVM) += i2c-taos-evm.o -obj-$(CONFIG_I2C_TINY_USB) += i2c-tiny-usb.o obj-$(CONFIG_I2C_VERSATILE) += i2c-versatile.o -obj-$(CONFIG_I2C_ACORN) += i2c-acorn.o -obj-$(CONFIG_I2C_VIA) += i2c-via.o -obj-$(CONFIG_I2C_VIAPRO) += i2c-viapro.o -obj-$(CONFIG_I2C_VOODOO3) += i2c-voodoo3.o obj-$(CONFIG_SCx200_ACB) += scx200_acb.o obj-$(CONFIG_SCx200_I2C) += scx200_i2c.o diff --git a/drivers/i2c/busses/i2c-ali1535.c b/drivers/i2c/busses/i2c-ali1535.c index f14372ac2fc5..9cead9b9458e 100644 --- a/drivers/i2c/busses/i2c-ali1535.c +++ b/drivers/i2c/busses/i2c-ali1535.c @@ -1,6 +1,4 @@ /* - i2c-ali1535.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (c) 2000 Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, Mark D. Studebaker <mdsxyz123@yahoo.com>, @@ -61,6 +59,7 @@ #include <linux/ioport.h> #include <linux/i2c.h> #include <linux/init.h> +#include <linux/acpi.h> #include <asm/io.h> @@ -159,6 +158,11 @@ static int ali1535_setup(struct pci_dev *dev) goto exit; } + retval = acpi_check_region(ali1535_smba, ALI1535_SMB_IOSIZE, + ali1535_driver.name); + if (retval) + goto exit; + if (!request_region(ali1535_smba, ALI1535_SMB_IOSIZE, ali1535_driver.name)) { dev_err(&dev->dev, "ALI1535_smb region 0x%x already in use!\n", @@ -259,7 +263,7 @@ static int ali1535_transaction(struct i2c_adapter *adap) dev_err(&adap->dev, "SMBus reset failed! (0x%02x) - controller or " "device on bus is probably hung\n", temp); - return -1; + return -EBUSY; } } else { /* check and clear done bit */ @@ -281,12 +285,12 @@ static int ali1535_transaction(struct i2c_adapter *adap) /* If the SMBus is still busy, we give up */ if (timeout >= MAX_TIMEOUT) { - result = -1; + result = -ETIMEDOUT; dev_err(&adap->dev, "SMBus Timeout!\n"); } if (temp & ALI1535_STS_FAIL) { - result = -1; + result = -EIO; dev_dbg(&adap->dev, "Error: Failed bus transaction\n"); } @@ -295,7 +299,7 @@ static int ali1535_transaction(struct i2c_adapter *adap) * do a printk. This means that bus collisions go unreported. */ if (temp & ALI1535_STS_BUSERR) { - result = -1; + result = -ENXIO; dev_dbg(&adap->dev, "Error: no response or bus collision ADD=%02x\n", inb_p(SMBHSTADD)); @@ -303,13 +307,13 @@ static int ali1535_transaction(struct i2c_adapter *adap) /* haven't ever seen this */ if (temp & ALI1535_STS_DEV) { - result = -1; + result = -EIO; dev_err(&adap->dev, "Error: device error\n"); } /* check to see if the "command complete" indication is set */ if (!(temp & ALI1535_STS_DONE)) { - result = -1; + result = -ETIMEDOUT; dev_err(&adap->dev, "Error: command never completed\n"); } @@ -332,7 +336,7 @@ static int ali1535_transaction(struct i2c_adapter *adap) return result; } -/* Return -1 on error. */ +/* Return negative errno on error. */ static s32 ali1535_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data *data) @@ -357,10 +361,6 @@ static s32 ali1535_access(struct i2c_adapter *adap, u16 addr, outb_p(0xFF, SMBHSTSTS); switch (size) { - case I2C_SMBUS_PROC_CALL: - dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n"); - result = -1; - goto EXIT; case I2C_SMBUS_QUICK: outb_p(((addr & 0x7f) << 1) | (read_write & 0x01), SMBHSTADD); @@ -418,13 +418,15 @@ static s32 ali1535_access(struct i2c_adapter *adap, u16 addr, outb_p(data->block[i], SMBBLKDAT); } break; + default: + dev_warn(&adap->dev, "Unsupported transaction %d\n", size); + result = -EOPNOTSUPP; + goto EXIT; } - if (ali1535_transaction(adap)) { - /* Error in transaction */ - result = -1; + result = ali1535_transaction(adap); + if (result) goto EXIT; - } if ((read_write == I2C_SMBUS_WRITE) || (size == ALI1535_QUICK)) { result = 0; @@ -475,7 +477,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter ali1535_adapter = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_ALI1535, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, }; diff --git a/drivers/i2c/busses/i2c-ali1563.c b/drivers/i2c/busses/i2c-ali1563.c index 6b68074e518a..fc3e5b026423 100644 --- a/drivers/i2c/busses/i2c-ali1563.c +++ b/drivers/i2c/busses/i2c-ali1563.c @@ -21,6 +21,7 @@ #include <linux/i2c.h> #include <linux/pci.h> #include <linux/init.h> +#include <linux/acpi.h> #define ALI1563_MAX_TIMEOUT 500 #define ALI1563_SMBBA 0x80 @@ -67,6 +68,7 @@ static int ali1563_transaction(struct i2c_adapter * a, int size) { u32 data; int timeout; + int status = -EIO; dev_dbg(&a->dev, "Transaction (pre): STS=%02x, CNTL1=%02x, " "CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n", @@ -103,13 +105,15 @@ static int ali1563_transaction(struct i2c_adapter * a, int size) /* Issue 'kill' to host controller */ outb_p(HST_CNTL2_KILL,SMB_HST_CNTL2); data = inb_p(SMB_HST_STS); + status = -ETIMEDOUT; } /* device error - no response, ignore the autodetection case */ - if ((data & HST_STS_DEVERR) && (size != HST_CNTL2_QUICK)) { - dev_err(&a->dev, "Device error!\n"); + if (data & HST_STS_DEVERR) { + if (size != HST_CNTL2_QUICK) + dev_err(&a->dev, "Device error!\n"); + status = -ENXIO; } - /* bus collision */ if (data & HST_STS_BUSERR) { dev_err(&a->dev, "Bus collision!\n"); @@ -122,13 +126,14 @@ static int ali1563_transaction(struct i2c_adapter * a, int size) outb_p(0x0,SMB_HST_CNTL2); } - return -1; + return status; } static int ali1563_block_start(struct i2c_adapter * a) { u32 data; int timeout; + int status = -EIO; dev_dbg(&a->dev, "Block (pre): STS=%02x, CNTL1=%02x, " "CNTL2=%02x, CMD=%02x, ADD=%02x, DAT0=%02x, DAT1=%02x\n", @@ -164,13 +169,20 @@ static int ali1563_block_start(struct i2c_adapter * a) if (timeout && !(data & HST_STS_BAD)) return 0; + + if (timeout == 0) + status = -ETIMEDOUT; + + if (data & HST_STS_DEVERR) + status = -ENXIO; + dev_err(&a->dev, "SMBus Error: %s%s%s%s%s\n", - timeout ? "Timeout " : "", + timeout ? "" : "Timeout ", data & HST_STS_FAIL ? "Transaction Failed " : "", data & HST_STS_BUSERR ? "No response or Bus Collision " : "", data & HST_STS_DEVERR ? "Device Error " : "", !(data & HST_STS_DONE) ? "Transaction Never Finished " : ""); - return -1; + return status; } static int ali1563_block(struct i2c_adapter * a, union i2c_smbus_data * data, u8 rw) @@ -235,10 +247,6 @@ static s32 ali1563_access(struct i2c_adapter * a, u16 addr, /* Map the size to what the chip understands */ switch (size) { - case I2C_SMBUS_PROC_CALL: - dev_err(&a->dev, "I2C_SMBUS_PROC_CALL not supported!\n"); - error = -EINVAL; - break; case I2C_SMBUS_QUICK: size = HST_CNTL2_QUICK; break; @@ -254,6 +262,10 @@ static s32 ali1563_access(struct i2c_adapter * a, u16 addr, case I2C_SMBUS_BLOCK_DATA: size = HST_CNTL2_BLOCK; break; + default: + dev_warn(&a->dev, "Unsupported transaction %d\n", size); + error = -EOPNOTSUPP; + goto Done; } outb_p(((addr & 0x7f) << 1) | (rw & 0x01), SMB_HST_ADD); @@ -345,6 +357,10 @@ static int __devinit ali1563_setup(struct pci_dev * dev) } } + if (acpi_check_region(ali1563_smba, ALI1563_SMB_IOSIZE, + ali1563_pci_driver.name)) + goto Err; + if (!request_region(ali1563_smba, ALI1563_SMB_IOSIZE, ali1563_pci_driver.name)) { dev_err(&dev->dev, "Could not allocate I/O space at 0x%04x\n", @@ -371,7 +387,7 @@ static const struct i2c_algorithm ali1563_algorithm = { static struct i2c_adapter ali1563_adapter = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_ALI1563, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &ali1563_algorithm, }; diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c index 93bf87d70961..234fdde7d40e 100644 --- a/drivers/i2c/busses/i2c-ali15x3.c +++ b/drivers/i2c/busses/i2c-ali15x3.c @@ -1,6 +1,4 @@ /* - ali15x3.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (c) 1999 Frodo Looijaard <frodol@dds.nl> and Philip Edelbrock <phil@netroedge.com> and Mark D. Studebaker <mdsxyz123@yahoo.com> @@ -68,6 +66,7 @@ #include <linux/delay.h> #include <linux/i2c.h> #include <linux/init.h> +#include <linux/acpi.h> #include <asm/io.h> /* ALI15X3 SMBus address offsets */ @@ -166,6 +165,10 @@ static int ali15x3_setup(struct pci_dev *ALI15X3_dev) if(force_addr) ali15x3_smba = force_addr & ~(ALI15X3_SMB_IOSIZE - 1); + if (acpi_check_region(ali15x3_smba, ALI15X3_SMB_IOSIZE, + ali15x3_driver.name)) + return -EBUSY; + if (!request_region(ali15x3_smba, ALI15X3_SMB_IOSIZE, ali15x3_driver.name)) { dev_err(&ALI15X3_dev->dev, @@ -282,7 +285,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap) dev_err(&adap->dev, "SMBus reset failed! (0x%02x) - " "controller or device on bus is probably hung\n", temp); - return -1; + return -EBUSY; } } else { /* check and clear done bit */ @@ -304,12 +307,12 @@ static int ali15x3_transaction(struct i2c_adapter *adap) /* If the SMBus is still busy, we give up */ if (timeout >= MAX_TIMEOUT) { - result = -1; + result = -ETIMEDOUT; dev_err(&adap->dev, "SMBus Timeout!\n"); } if (temp & ALI15X3_STS_TERM) { - result = -1; + result = -EIO; dev_dbg(&adap->dev, "Error: Failed bus transaction\n"); } @@ -320,7 +323,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap) This means that bus collisions go unreported. */ if (temp & ALI15X3_STS_COLL) { - result = -1; + result = -ENXIO; dev_dbg(&adap->dev, "Error: no response or bus collision ADD=%02x\n", inb_p(SMBHSTADD)); @@ -328,7 +331,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap) /* haven't ever seen this */ if (temp & ALI15X3_STS_DEV) { - result = -1; + result = -EIO; dev_err(&adap->dev, "Error: device error\n"); } dev_dbg(&adap->dev, "Transaction (post): STS=%02x, CNT=%02x, CMD=%02x, " @@ -338,7 +341,7 @@ static int ali15x3_transaction(struct i2c_adapter *adap) return result; } -/* Return -1 on error. */ +/* Return negative errno on error. */ static s32 ali15x3_access(struct i2c_adapter * adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data) @@ -362,9 +365,6 @@ static s32 ali15x3_access(struct i2c_adapter * adap, u16 addr, } switch (size) { - case I2C_SMBUS_PROC_CALL: - dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n"); - return -1; case I2C_SMBUS_QUICK: outb_p(((addr & 0x7f) << 1) | (read_write & 0x01), SMBHSTADD); @@ -417,12 +417,16 @@ static s32 ali15x3_access(struct i2c_adapter * adap, u16 addr, } size = ALI15X3_BLOCK_DATA; break; + default: + dev_warn(&adap->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; } outb_p(size, SMBHSTCNT); /* output command */ - if (ali15x3_transaction(adap)) /* Error in transaction */ - return -1; + temp = ali15x3_transaction(adap); + if (temp) + return temp; if ((read_write == I2C_SMBUS_WRITE) || (size == ALI15X3_QUICK)) return 0; @@ -470,7 +474,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter ali15x3_adapter = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_ALI15X3, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, }; diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c index c38a0a112208..2f150e33c74c 100644 --- a/drivers/i2c/busses/i2c-amd756-s4882.c +++ b/drivers/i2c/busses/i2c-amd756-s4882.c @@ -58,7 +58,7 @@ static s32 amd756_access_virt0(struct i2c_adapter * adap, u16 addr, /* We exclude the multiplexed addresses */ if (addr == 0x4c || (addr & 0xfc) == 0x50 || (addr & 0xfc) == 0x30 || addr == 0x18) - return -1; + return -ENXIO; mutex_lock(&amd756_lock); @@ -86,7 +86,7 @@ static inline s32 amd756_access_channel(struct i2c_adapter * adap, u16 addr, /* We exclude the non-multiplexed addresses */ if (addr != 0x4c && (addr & 0xfc) != 0x50 && (addr & 0xfc) != 0x30) - return -1; + return -ENXIO; mutex_lock(&amd756_lock); diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c index 43508d61eb7c..1ea39254dac6 100644 --- a/drivers/i2c/busses/i2c-amd756.c +++ b/drivers/i2c/busses/i2c-amd756.c @@ -1,7 +1,4 @@ /* - amd756.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring - Copyright (c) 1999-2002 Merlin Hughes <merlin@merlin.org> Shamelessly ripped from i2c-piix4.c: @@ -45,6 +42,7 @@ #include <linux/ioport.h> #include <linux/i2c.h> #include <linux/init.h> +#include <linux/acpi.h> #include <asm/io.h> /* AMD756 SMBus address offsets */ @@ -151,17 +149,17 @@ static int amd756_transaction(struct i2c_adapter *adap) } if (temp & GS_PRERR_STS) { - result = -1; + result = -ENXIO; dev_dbg(&adap->dev, "SMBus Protocol error (no response)!\n"); } if (temp & GS_COL_STS) { - result = -1; + result = -EIO; dev_warn(&adap->dev, "SMBus collision!\n"); } if (temp & GS_TO_STS) { - result = -1; + result = -ETIMEDOUT; dev_dbg(&adap->dev, "SMBus protocol timeout!\n"); } @@ -189,22 +187,18 @@ static int amd756_transaction(struct i2c_adapter *adap) outw_p(inw(SMB_GLOBAL_ENABLE) | GE_ABORT, SMB_GLOBAL_ENABLE); msleep(100); outw_p(GS_CLEAR_STS, SMB_GLOBAL_STATUS); - return -1; + return -EIO; } -/* Return -1 on error. */ +/* Return negative errno on error. */ static s32 amd756_access(struct i2c_adapter * adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data) { int i, len; + int status; - /** TODO: Should I supporte the 10-bit transfers? */ switch (size) { - case I2C_SMBUS_PROC_CALL: - dev_dbg(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n"); - /* TODO: Well... It is supported, I'm just not sure what to do here... */ - return -1; case I2C_SMBUS_QUICK: outw_p(((addr & 0x7f) << 1) | (read_write & 0x01), SMB_HOST_ADDRESS); @@ -251,13 +245,17 @@ static s32 amd756_access(struct i2c_adapter * adap, u16 addr, } size = AMD756_BLOCK_DATA; break; + default: + dev_warn(&adap->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; } /* How about enabling interrupts... */ outw_p(size & GE_CYC_TYPE_MASK, SMB_GLOBAL_ENABLE); - if (amd756_transaction(adap)) /* Error in transaction */ - return -1; + status = amd756_transaction(adap); + if (status) + return status; if ((read_write == I2C_SMBUS_WRITE) || (size == AMD756_QUICK)) return 0; @@ -301,7 +299,7 @@ static const struct i2c_algorithm smbus_algorithm = { struct i2c_adapter amd756_smbus = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_AMD756, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, }; @@ -368,6 +366,11 @@ static int __devinit amd756_probe(struct pci_dev *pdev, amd756_ioport += SMB_ADDR_OFFSET; } + error = acpi_check_region(amd756_ioport, SMB_IOSIZE, + amd756_driver.name); + if (error) + return error; + if (!request_region(amd756_ioport, SMB_IOSIZE, amd756_driver.name)) { dev_err(&pdev->dev, "SMB region 0x%x already in use!\n", amd756_ioport); diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c index 5d1a27ef2504..3972208876b3 100644 --- a/drivers/i2c/busses/i2c-amd8111.c +++ b/drivers/i2c/busses/i2c-amd8111.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/i2c.h> #include <linux/delay.h> +#include <linux/acpi.h> #include <asm/io.h> MODULE_LICENSE("GPL"); @@ -77,7 +78,7 @@ static unsigned int amd_ec_wait_write(struct amd_smbus *smbus) if (!timeout) { dev_warn(&smbus->dev->dev, "Timeout while waiting for IBF to clear\n"); - return -1; + return -ETIMEDOUT; } return 0; @@ -93,7 +94,7 @@ static unsigned int amd_ec_wait_read(struct amd_smbus *smbus) if (!timeout) { dev_warn(&smbus->dev->dev, "Timeout while waiting for OBF to set\n"); - return -1; + return -ETIMEDOUT; } return 0; @@ -102,16 +103,21 @@ static unsigned int amd_ec_wait_read(struct amd_smbus *smbus) static unsigned int amd_ec_read(struct amd_smbus *smbus, unsigned char address, unsigned char *data) { - if (amd_ec_wait_write(smbus)) - return -1; + int status; + + status = amd_ec_wait_write(smbus); + if (status) + return status; outb(AMD_EC_CMD_RD, smbus->base + AMD_EC_CMD); - if (amd_ec_wait_write(smbus)) - return -1; + status = amd_ec_wait_write(smbus); + if (status) + return status; outb(address, smbus->base + AMD_EC_DATA); - if (amd_ec_wait_read(smbus)) - return -1; + status = amd_ec_wait_read(smbus); + if (status) + return status; *data = inb(smbus->base + AMD_EC_DATA); return 0; @@ -120,16 +126,21 @@ static unsigned int amd_ec_read(struct amd_smbus *smbus, unsigned char address, static unsigned int amd_ec_write(struct amd_smbus *smbus, unsigned char address, unsigned char data) { - if (amd_ec_wait_write(smbus)) - return -1; + int status; + + status = amd_ec_wait_write(smbus); + if (status) + return status; outb(AMD_EC_CMD_WR, smbus->base + AMD_EC_CMD); - if (amd_ec_wait_write(smbus)) - return -1; + status = amd_ec_wait_write(smbus); + if (status) + return status; outb(address, smbus->base + AMD_EC_DATA); - if (amd_ec_wait_write(smbus)) - return -1; + status = amd_ec_wait_write(smbus); + if (status) + return status; outb(data, smbus->base + AMD_EC_DATA); return 0; @@ -267,12 +278,17 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr, default: dev_warn(&adap->dev, "Unsupported transaction %d\n", size); - return -1; + return -EOPNOTSUPP; } amd_ec_write(smbus, AMD_SMB_ADDR, addr << 1); amd_ec_write(smbus, AMD_SMB_PRTCL, protocol); + /* FIXME this discards status from ec_read(); so temp[0] will + * hold stack garbage ... the rest of this routine will act + * nonsensically. Ignored ec_write() status might explain + * some such failures... + */ amd_ec_read(smbus, AMD_SMB_STS, temp + 0); if (~temp[0] & AMD_SMB_STS_DONE) { @@ -286,7 +302,7 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr, } if ((~temp[0] & AMD_SMB_STS_DONE) || (temp[0] & AMD_SMB_STS_STATUS)) - return -1; + return -EIO; if (read_write == I2C_SMBUS_WRITE) return 0; @@ -359,6 +375,10 @@ static int __devinit amd8111_probe(struct pci_dev *dev, smbus->base = pci_resource_start(dev, 0); smbus->size = pci_resource_len(dev, 0); + error = acpi_check_resource_conflict(&dev->resource[0]); + if (error) + goto out_kfree; + if (!request_region(smbus->base, smbus->size, amd8111_driver.name)) { error = -EBUSY; goto out_kfree; @@ -368,7 +388,7 @@ static int __devinit amd8111_probe(struct pci_dev *dev, snprintf(smbus->adapter.name, sizeof(smbus->adapter.name), "SMBus2 AMD8111 adapter at %04x", smbus->base); smbus->adapter.id = I2C_HW_SMBUS_AMD8111; - smbus->adapter.class = I2C_CLASS_HWMON; + smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD; smbus->adapter.algo = &smbus_algorithm; smbus->adapter.algo_data = smbus; diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c new file mode 100644 index 000000000000..652acd7b5943 --- /dev/null +++ b/drivers/i2c/busses/i2c-cpm.c @@ -0,0 +1,745 @@ +/* + * Freescale CPM1/CPM2 I2C interface. + * Copyright (c) 1999 Dan Malek (dmalek@jlc.net). + * + * moved into proper i2c interface; + * Brad Parker (brad@heeltoe.com) + * + * Parts from dbox2_i2c.c (cvs.tuxbox.org) + * (C) 2000-2001 Felix Domke (tmbinc@gmx.net), Gillem (htoa@gmx.net) + * + * (C) 2007 Montavista Software, Inc. + * Vitaly Bordug <vitb@kernel.crashing.org> + * + * Converted to of_platform_device. Renamed to i2c-cpm.c. + * (C) 2007,2008 Jochen Friedrich <jochen@scram.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/errno.h> +#include <linux/stddef.h> +#include <linux/i2c.h> +#include <linux/io.h> +#include <linux/dma-mapping.h> +#include <linux/of_device.h> +#include <linux/of_platform.h> +#include <linux/of_i2c.h> +#include <sysdev/fsl_soc.h> +#include <asm/cpm.h> + +/* Try to define this if you have an older CPU (earlier than rev D4) */ +/* However, better use a GPIO based bitbang driver in this case :/ */ +#undef I2C_CHIP_ERRATA + +#define CPM_MAX_READ 513 +#define CPM_MAXBD 4 + +#define I2C_EB (0x10) /* Big endian mode */ +#define I2C_EB_CPM2 (0x30) /* Big endian mode, memory snoop */ + +#define DPRAM_BASE ((u8 __iomem __force *)cpm_muram_addr(0)) + +/* I2C parameter RAM. */ +struct i2c_ram { + ushort rbase; /* Rx Buffer descriptor base address */ + ushort tbase; /* Tx Buffer descriptor base address */ + u_char rfcr; /* Rx function code */ + u_char tfcr; /* Tx function code */ + ushort mrblr; /* Max receive buffer length */ + uint rstate; /* Internal */ + uint rdp; /* Internal */ + ushort rbptr; /* Rx Buffer descriptor pointer */ + ushort rbc; /* Internal */ + uint rxtmp; /* Internal */ + uint tstate; /* Internal */ + uint tdp; /* Internal */ + ushort tbptr; /* Tx Buffer descriptor pointer */ + ushort tbc; /* Internal */ + uint txtmp; /* Internal */ + char res1[4]; /* Reserved */ + ushort rpbase; /* Relocation pointer */ + char res2[2]; /* Reserved */ +}; + +#define I2COM_START 0x80 +#define I2COM_MASTER 0x01 +#define I2CER_TXE 0x10 +#define I2CER_BUSY 0x04 +#define I2CER_TXB 0x02 +#define I2CER_RXB 0x01 +#define I2MOD_EN 0x01 + +/* I2C Registers */ +struct i2c_reg { + u8 i2mod; + u8 res1[3]; + u8 i2add; + u8 res2[3]; + u8 i2brg; + u8 res3[3]; + u8 i2com; + u8 res4[3]; + u8 i2cer; + u8 res5[3]; + u8 i2cmr; +}; + +struct cpm_i2c { + char *base; + struct of_device *ofdev; + struct i2c_adapter adap; + uint dp_addr; + int version; /* CPM1=1, CPM2=2 */ + int irq; + int cp_command; + int freq; + struct i2c_reg __iomem *i2c_reg; + struct i2c_ram __iomem *i2c_ram; + u16 i2c_addr; + wait_queue_head_t i2c_wait; + cbd_t __iomem *tbase; + cbd_t __iomem *rbase; + u_char *txbuf[CPM_MAXBD]; + u_char *rxbuf[CPM_MAXBD]; + u32 txdma[CPM_MAXBD]; + u32 rxdma[CPM_MAXBD]; +}; + +static irqreturn_t cpm_i2c_interrupt(int irq, void *dev_id) +{ + struct cpm_i2c *cpm; + struct i2c_reg __iomem *i2c_reg; + struct i2c_adapter *adap = dev_id; + int i; + + cpm = i2c_get_adapdata(dev_id); + i2c_reg = cpm->i2c_reg; + + /* Clear interrupt. */ + i = in_8(&i2c_reg->i2cer); + out_8(&i2c_reg->i2cer, i); + + dev_dbg(&adap->dev, "Interrupt: %x\n", i); + + wake_up_interruptible(&cpm->i2c_wait); + + return i ? IRQ_HANDLED : IRQ_NONE; +} + +static void cpm_reset_i2c_params(struct cpm_i2c *cpm) +{ + struct i2c_ram __iomem *i2c_ram = cpm->i2c_ram; + + /* Set up the I2C parameters in the parameter ram. */ + out_be16(&i2c_ram->tbase, (u8 __iomem *)cpm->tbase - DPRAM_BASE); + out_be16(&i2c_ram->rbase, (u8 __iomem *)cpm->rbase - DPRAM_BASE); + + if (cpm->version == 1) { + out_8(&i2c_ram->tfcr, I2C_EB); + out_8(&i2c_ram->rfcr, I2C_EB); + } else { + out_8(&i2c_ram->tfcr, I2C_EB_CPM2); + out_8(&i2c_ram->rfcr, I2C_EB_CPM2); + } + + out_be16(&i2c_ram->mrblr, CPM_MAX_READ); + + out_be32(&i2c_ram->rstate, 0); + out_be32(&i2c_ram->rdp, 0); + out_be16(&i2c_ram->rbptr, 0); + out_be16(&i2c_ram->rbc, 0); + out_be32(&i2c_ram->rxtmp, 0); + out_be32(&i2c_ram->tstate, 0); + out_be32(&i2c_ram->tdp, 0); + out_be16(&i2c_ram->tbptr, 0); + out_be16(&i2c_ram->tbc, 0); + out_be32(&i2c_ram->txtmp, 0); +} + +static void cpm_i2c_force_close(struct i2c_adapter *adap) +{ + struct cpm_i2c *cpm = i2c_get_adapdata(adap); + struct i2c_reg __iomem *i2c_reg = cpm->i2c_reg; + + dev_dbg(&adap->dev, "cpm_i2c_force_close()\n"); + + cpm_command(cpm->cp_command, CPM_CR_CLOSE_RX_BD); + + out_8(&i2c_reg->i2cmr, 0x00); /* Disable all interrupts */ + out_8(&i2c_reg->i2cer, 0xff); +} + +static void cpm_i2c_parse_message(struct i2c_adapter *adap, + struct i2c_msg *pmsg, int num, int tx, int rx) +{ + cbd_t __iomem *tbdf; + cbd_t __iomem *rbdf; + u_char addr; + u_char *tb; + u_char *rb; + struct cpm_i2c *cpm = i2c_get_adapdata(adap); + + tbdf = cpm->tbase + tx; + rbdf = cpm->rbase + rx; + + addr = pmsg->addr << 1; + if (pmsg->flags & I2C_M_RD) + addr |= 1; + + tb = cpm->txbuf[tx]; + rb = cpm->rxbuf[rx]; + + /* Align read buffer */ + rb = (u_char *) (((ulong) rb + 1) & ~1); + + tb[0] = addr; /* Device address byte w/rw flag */ + + out_be16(&tbdf->cbd_datlen, pmsg->len + 1); + out_be16(&tbdf->cbd_sc, 0); + + if (!(pmsg->flags & I2C_M_NOSTART)) + setbits16(&tbdf->cbd_sc, BD_I2C_START); + + if (tx + 1 == num) + setbits16(&tbdf->cbd_sc, BD_SC_LAST | BD_SC_WRAP); + + if (pmsg->flags & I2C_M_RD) { + /* + * To read, we need an empty buffer of the proper length. + * All that is used is the first byte for address, the remainder + * is just used for timing (and doesn't really have to exist). + */ + + dev_dbg(&adap->dev, "cpm_i2c_read(abyte=0x%x)\n", addr); + + out_be16(&rbdf->cbd_datlen, 0); + out_be16(&rbdf->cbd_sc, BD_SC_EMPTY | BD_SC_INTRPT); + + if (rx + 1 == CPM_MAXBD) + setbits16(&rbdf->cbd_sc, BD_SC_WRAP); + + eieio(); + setbits16(&tbdf->cbd_sc, BD_SC_READY); + } else { + dev_dbg(&adap->dev, "cpm_iic_write(abyte=0x%x)\n", addr); + + memcpy(tb+1, pmsg->buf, pmsg->len); + + eieio(); + setbits16(&tbdf->cbd_sc, BD_SC_READY | BD_SC_INTRPT); + } +} + +static int cpm_i2c_check_message(struct i2c_adapter *adap, + struct i2c_msg *pmsg, int tx, int rx) +{ + cbd_t __iomem *tbdf; + cbd_t __iomem *rbdf; + u_char *tb; + u_char *rb; + struct cpm_i2c *cpm = i2c_get_adapdata(adap); + + tbdf = cpm->tbase + tx; + rbdf = cpm->rbase + rx; + + tb = cpm->txbuf[tx]; + rb = cpm->rxbuf[rx]; + + /* Align read buffer */ + rb = (u_char *) (((uint) rb + 1) & ~1); + + eieio(); + if (pmsg->flags & I2C_M_RD) { + dev_dbg(&adap->dev, "tx sc 0x%04x, rx sc 0x%04x\n", + in_be16(&tbdf->cbd_sc), in_be16(&rbdf->cbd_sc)); + + if (in_be16(&tbdf->cbd_sc) & BD_SC_NAK) { + dev_dbg(&adap->dev, "I2C read; No ack\n"); + return -ENXIO; + } + if (in_be16(&rbdf->cbd_sc) & BD_SC_EMPTY) { + dev_err(&adap->dev, + "I2C read; complete but rbuf empty\n"); + return -EREMOTEIO; + } + if (in_be16(&rbdf->cbd_sc) & BD_SC_OV) { + dev_err(&adap->dev, "I2C read; Overrun\n"); + return -EREMOTEIO; + } + memcpy(pmsg->buf, rb, pmsg->len); + } else { + dev_dbg(&adap->dev, "tx sc %d 0x%04x\n", tx, + in_be16(&tbdf->cbd_sc)); + + if (in_be16(&tbdf->cbd_sc) & BD_SC_NAK) { + dev_dbg(&adap->dev, "I2C write; No ack\n"); + return -ENXIO; + } + if (in_be16(&tbdf->cbd_sc) & BD_SC_UN) { + dev_err(&adap->dev, "I2C write; Underrun\n"); + return -EIO; + } + if (in_be16(&tbdf->cbd_sc) & BD_SC_CL) { + dev_err(&adap->dev, "I2C write; Collision\n"); + return -EIO; + } + } + return 0; +} + +static int cpm_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) +{ + struct cpm_i2c *cpm = i2c_get_adapdata(adap); + struct i2c_reg __iomem *i2c_reg = cpm->i2c_reg; + struct i2c_ram __iomem *i2c_ram = cpm->i2c_ram; + struct i2c_msg *pmsg; + int ret, i; + int tptr; + int rptr; + cbd_t __iomem *tbdf; + cbd_t __iomem *rbdf; + + if (num > CPM_MAXBD) + return -EINVAL; + + /* Check if we have any oversized READ requests */ + for (i = 0; i < num; i++) { + pmsg = &msgs[i]; + if (pmsg->len >= CPM_MAX_READ) + return -EINVAL; + } + + /* Reset to use first buffer */ + out_be16(&i2c_ram->rbptr, in_be16(&i2c_ram->rbase)); + out_be16(&i2c_ram->tbptr, in_be16(&i2c_ram->tbase)); + + tbdf = cpm->tbase; + rbdf = cpm->rbase; + + tptr = 0; + rptr = 0; + + while (tptr < num) { + pmsg = &msgs[tptr]; + dev_dbg(&adap->dev, "R: %d T: %d\n", rptr, tptr); + + cpm_i2c_parse_message(adap, pmsg, num, tptr, rptr); + if (pmsg->flags & I2C_M_RD) + rptr++; + tptr++; + } + /* Start transfer now */ + /* Enable RX/TX/Error interupts */ + out_8(&i2c_reg->i2cmr, I2CER_BUSY | I2CER_TXB | I2CER_RXB); + out_8(&i2c_reg->i2cer, 0xff); /* Clear interrupt status */ + /* Chip bug, set enable here */ + setbits8(&i2c_reg->i2mod, I2MOD_EN); /* Enable */ + /* Begin transmission */ + setbits8(&i2c_reg->i2com, I2COM_START); + + tptr = 0; + rptr = 0; + + while (tptr < num) { + /* Check for outstanding messages */ + dev_dbg(&adap->dev, "test ready.\n"); + pmsg = &msgs[tptr]; + if (pmsg->flags & I2C_M_RD) + ret = wait_event_interruptible_timeout(cpm->i2c_wait, + !(in_be16(&rbdf[rptr].cbd_sc) & BD_SC_EMPTY), + 1 * HZ); + else + ret = wait_event_interruptible_timeout(cpm->i2c_wait, + !(in_be16(&tbdf[tptr].cbd_sc) & BD_SC_READY), + 1 * HZ); + if (ret == 0) { + ret = -EREMOTEIO; + dev_err(&adap->dev, "I2C transfer: timeout\n"); + goto out_err; + } + if (ret > 0) { + dev_dbg(&adap->dev, "ready.\n"); + ret = cpm_i2c_check_message(adap, pmsg, tptr, rptr); + tptr++; + if (pmsg->flags & I2C_M_RD) + rptr++; + if (ret) + goto out_err; + } + } +#ifdef I2C_CHIP_ERRATA + /* + * Chip errata, clear enable. This is not needed on rev D4 CPUs. + * Disabling I2C too early may cause too short stop condition + */ + udelay(4); + clrbits8(&i2c_reg->i2mod, I2MOD_EN); +#endif + return (num); + +out_err: + cpm_i2c_force_close(adap); +#ifdef I2C_CHIP_ERRATA + /* + * Chip errata, clear enable. This is not needed on rev D4 CPUs. + */ + clrbits8(&i2c_reg->i2mod, I2MOD_EN); +#endif + return ret; +} + +static u32 cpm_i2c_func(struct i2c_adapter *adap) +{ + return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK); +} + +/* -----exported algorithm data: ------------------------------------- */ + +static const struct i2c_algorithm cpm_i2c_algo = { + .master_xfer = cpm_i2c_xfer, + .functionality = cpm_i2c_func, +}; + +static const struct i2c_adapter cpm_ops = { + .owner = THIS_MODULE, + .name = "i2c-cpm", + .algo = &cpm_i2c_algo, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, +}; + +static int __devinit cpm_i2c_setup(struct cpm_i2c *cpm) +{ + struct of_device *ofdev = cpm->ofdev; + const u32 *data; + int len, ret, i; + void __iomem *i2c_base; + cbd_t __iomem *tbdf; + cbd_t __iomem *rbdf; + unsigned char brg; + + dev_dbg(&cpm->ofdev->dev, "cpm_i2c_setup()\n"); + + init_waitqueue_head(&cpm->i2c_wait); + + cpm->irq = of_irq_to_resource(ofdev->node, 0, NULL); + if (cpm->irq == NO_IRQ) + return -EINVAL; + + /* Install interrupt handler. */ + ret = request_irq(cpm->irq, cpm_i2c_interrupt, 0, "cpm_i2c", + &cpm->adap); + if (ret) + return ret; + + /* I2C parameter RAM */ + i2c_base = of_iomap(ofdev->node, 1); + if (i2c_base == NULL) { + ret = -EINVAL; + goto out_irq; + } + + if (of_device_is_compatible(ofdev->node, "fsl,cpm1-i2c")) { + + /* Check for and use a microcode relocation patch. */ + cpm->i2c_ram = i2c_base; + cpm->i2c_addr = in_be16(&cpm->i2c_ram->rpbase); + + /* + * Maybe should use cpm_muram_alloc instead of hardcoding + * this in micropatch.c + */ + if (cpm->i2c_addr) { + cpm->i2c_ram = cpm_muram_addr(cpm->i2c_addr); + iounmap(i2c_base); + } + + cpm->version = 1; + + } else if (of_device_is_compatible(ofdev->node, "fsl,cpm2-i2c")) { + cpm->i2c_addr = cpm_muram_alloc(sizeof(struct i2c_ram), 64); + cpm->i2c_ram = cpm_muram_addr(cpm->i2c_addr); + out_be16(i2c_base, cpm->i2c_addr); + iounmap(i2c_base); + + cpm->version = 2; + + } else { + iounmap(i2c_base); + ret = -EINVAL; + goto out_irq; + } + + /* I2C control/status registers */ + cpm->i2c_reg = of_iomap(ofdev->node, 0); + if (cpm->i2c_reg == NULL) { + ret = -EINVAL; + goto out_ram; + } + + data = of_get_property(ofdev->node, "fsl,cpm-command", &len); + if (!data || len != 4) { + ret = -EINVAL; + goto out_reg; + } + cpm->cp_command = *data; + + data = of_get_property(ofdev->node, "linux,i2c-class", &len); + if (data && len == 4) + cpm->adap.class = *data; + + data = of_get_property(ofdev->node, "clock-frequency", &len); + if (data && len == 4) + cpm->freq = *data; + else + cpm->freq = 60000; /* use 60kHz i2c clock by default */ + + /* + * Allocate space for CPM_MAXBD transmit and receive buffer + * descriptors in the DP ram. + */ + cpm->dp_addr = cpm_muram_alloc(sizeof(cbd_t) * 2 * CPM_MAXBD, 8); + if (!cpm->dp_addr) { + ret = -ENOMEM; + goto out_reg; + } + + cpm->tbase = cpm_muram_addr(cpm->dp_addr); + cpm->rbase = cpm_muram_addr(cpm->dp_addr + sizeof(cbd_t) * CPM_MAXBD); + + /* Allocate TX and RX buffers */ + + tbdf = cpm->tbase; + rbdf = cpm->rbase; + + for (i = 0; i < CPM_MAXBD; i++) { + cpm->rxbuf[i] = dma_alloc_coherent( + NULL, CPM_MAX_READ + 1, &cpm->rxdma[i], GFP_KERNEL); + if (!cpm->rxbuf[i]) { + ret = -ENOMEM; + goto out_muram; + } + out_be32(&rbdf[i].cbd_bufaddr, ((cpm->rxdma[i] + 1) & ~1)); + + cpm->txbuf[i] = (unsigned char *)dma_alloc_coherent( + NULL, CPM_MAX_READ + 1, &cpm->txdma[i], GFP_KERNEL); + if (!cpm->txbuf[i]) { + ret = -ENOMEM; + goto out_muram; + } + out_be32(&tbdf[i].cbd_bufaddr, cpm->txdma[i]); + } + + /* Initialize Tx/Rx parameters. */ + + cpm_reset_i2c_params(cpm); + + dev_dbg(&cpm->ofdev->dev, "i2c_ram %p, i2c_addr 0x%04x\n", + cpm->i2c_ram, cpm->i2c_addr); + dev_dbg(&cpm->ofdev->dev, "tbase 0x%04x, rbase 0x%04x\n", + (u8 __iomem *)cpm->tbase - DPRAM_BASE, + (u8 __iomem *)cpm->rbase - DPRAM_BASE); + + cpm_command(cpm->cp_command, CPM_CR_INIT_TRX); + + /* + * Select an invalid address. Just make sure we don't use loopback mode + */ + out_8(&cpm->i2c_reg->i2add, 0x7f << 1); + + /* + * PDIV is set to 00 in i2mod, so brgclk/32 is used as input to the + * i2c baud rate generator. This is divided by 2 x (DIV + 3) to get + * the actual i2c bus frequency. + */ + brg = get_brgfreq() / (32 * 2 * cpm->freq) - 3; + out_8(&cpm->i2c_reg->i2brg, brg); + + out_8(&cpm->i2c_reg->i2mod, 0x00); + out_8(&cpm->i2c_reg->i2com, I2COM_MASTER); /* Master mode */ + + /* Disable interrupts. */ + out_8(&cpm->i2c_reg->i2cmr, 0); + out_8(&cpm->i2c_reg->i2cer, 0xff); + + return 0; + +out_muram: + for (i = 0; i < CPM_MAXBD; i++) { + if (cpm->rxbuf[i]) + dma_free_coherent(NULL, CPM_MAX_READ + 1, + cpm->rxbuf[i], cpm->rxdma[i]); + if (cpm->txbuf[i]) + dma_free_coherent(NULL, CPM_MAX_READ + 1, + cpm->txbuf[i], cpm->txdma[i]); + } + cpm_muram_free(cpm->dp_addr); +out_reg: + iounmap(cpm->i2c_reg); +out_ram: + if ((cpm->version == 1) && (!cpm->i2c_addr)) + iounmap(cpm->i2c_ram); + if (cpm->version == 2) + cpm_muram_free(cpm->i2c_addr); +out_irq: + free_irq(cpm->irq, &cpm->adap); + return ret; +} + +static void cpm_i2c_shutdown(struct cpm_i2c *cpm) +{ + int i; + + /* Shut down I2C. */ + clrbits8(&cpm->i2c_reg->i2mod, I2MOD_EN); + + /* Disable interrupts */ + out_8(&cpm->i2c_reg->i2cmr, 0); + out_8(&cpm->i2c_reg->i2cer, 0xff); + + free_irq(cpm->irq, &cpm->adap); + + /* Free all memory */ + for (i = 0; i < CPM_MAXBD; i++) { + dma_free_coherent(NULL, CPM_MAX_READ + 1, + cpm->rxbuf[i], cpm->rxdma[i]); + dma_free_coherent(NULL, CPM_MAX_READ + 1, + cpm->txbuf[i], cpm->txdma[i]); + } + + cpm_muram_free(cpm->dp_addr); + iounmap(cpm->i2c_reg); + + if ((cpm->version == 1) && (!cpm->i2c_addr)) + iounmap(cpm->i2c_ram); + if (cpm->version == 2) + cpm_muram_free(cpm->i2c_addr); +} + +static int __devinit cpm_i2c_probe(struct of_device *ofdev, + const struct of_device_id *match) +{ + int result, len; + struct cpm_i2c *cpm; + const u32 *data; + + cpm = kzalloc(sizeof(struct cpm_i2c), GFP_KERNEL); + if (!cpm) + return -ENOMEM; + + cpm->ofdev = ofdev; + + dev_set_drvdata(&ofdev->dev, cpm); + + cpm->adap = cpm_ops; + i2c_set_adapdata(&cpm->adap, cpm); + cpm->adap.dev.parent = &ofdev->dev; + + result = cpm_i2c_setup(cpm); + if (result) { + dev_err(&ofdev->dev, "Unable to init hardware\n"); + goto out_free; + } + + /* register new adapter to i2c module... */ + + data = of_get_property(ofdev->node, "linux,i2c-index", &len); + if (data && len == 4) { + cpm->adap.nr = *data; + result = i2c_add_numbered_adapter(&cpm->adap); + } else + result = i2c_add_adapter(&cpm->adap); + + if (result < 0) { + dev_err(&ofdev->dev, "Unable to register with I2C\n"); + goto out_shut; + } + + dev_dbg(&ofdev->dev, "hw routines for %s registered.\n", + cpm->adap.name); + + /* + * register OF I2C devices + */ + of_register_i2c_devices(&cpm->adap, ofdev->node); + + return 0; +out_shut: + cpm_i2c_shutdown(cpm); +out_free: + dev_set_drvdata(&ofdev->dev, NULL); + kfree(cpm); + + return result; +} + +static int __devexit cpm_i2c_remove(struct of_device *ofdev) +{ + struct cpm_i2c *cpm = dev_get_drvdata(&ofdev->dev); + + i2c_del_adapter(&cpm->adap); + + cpm_i2c_shutdown(cpm); + + dev_set_drvdata(&ofdev->dev, NULL); + kfree(cpm); + + return 0; +} + +static const struct of_device_id cpm_i2c_match[] = { + { + .compatible = "fsl,cpm1-i2c", + }, + { + .compatible = "fsl,cpm2-i2c", + }, + {}, +}; + +MODULE_DEVICE_TABLE(of, cpm_i2c_match); + +static struct of_platform_driver cpm_i2c_driver = { + .match_table = cpm_i2c_match, + .probe = cpm_i2c_probe, + .remove = __devexit_p(cpm_i2c_remove), + .driver = { + .name = "fsl-i2c-cpm", + .owner = THIS_MODULE, + } +}; + +static int __init cpm_i2c_init(void) +{ + return of_register_platform_driver(&cpm_i2c_driver); +} + +static void __exit cpm_i2c_exit(void) +{ + of_unregister_platform_driver(&cpm_i2c_driver); +} + +module_init(cpm_i2c_init); +module_exit(cpm_i2c_exit); + +MODULE_AUTHOR("Jochen Friedrich <jochen@scram.de>"); +MODULE_DESCRIPTION("I2C-Bus adapter routines for CPM boards"); +MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c index 7ecbfc429b19..af3846eda985 100644 --- a/drivers/i2c/busses/i2c-davinci.c +++ b/drivers/i2c/busses/i2c-davinci.c @@ -85,6 +85,7 @@ #define DAVINCI_I2C_MDR_MST (1 << 10) #define DAVINCI_I2C_MDR_TRX (1 << 9) #define DAVINCI_I2C_MDR_XA (1 << 8) +#define DAVINCI_I2C_MDR_RM (1 << 7) #define DAVINCI_I2C_MDR_IRS (1 << 5) #define DAVINCI_I2C_IMR_AAS (1 << 6) @@ -112,6 +113,7 @@ struct davinci_i2c_dev { u8 *buf; size_t buf_len; int irq; + u8 terminate; struct i2c_adapter adapter; }; @@ -142,6 +144,7 @@ static int i2c_davinci_init(struct davinci_i2c_dev *dev) struct davinci_i2c_platform_data *pdata = dev->dev->platform_data; u16 psc; u32 clk; + u32 d; u32 clkh; u32 clkl; u32 input_clock = clk_get_rate(dev->clk); @@ -171,23 +174,29 @@ static int i2c_davinci_init(struct davinci_i2c_dev *dev) * if PSC > 1 , d = 5 */ - psc = 26; /* To get 1MHz clock */ + /* get minimum of 7 MHz clock, but max of 12 MHz */ + psc = (input_clock / 7000000) - 1; + if ((input_clock / (psc + 1)) > 12000000) + psc++; /* better to run under spec than over */ + d = (psc >= 2) ? 5 : 7 - psc; - clk = ((input_clock / (psc + 1)) / (pdata->bus_freq * 1000)) - 10; - clkh = (50 * clk) / 100; + clk = ((input_clock / (psc + 1)) / (pdata->bus_freq * 1000)) - (d << 1); + clkh = clk >> 1; clkl = clk - clkh; davinci_i2c_write_reg(dev, DAVINCI_I2C_PSC_REG, psc); davinci_i2c_write_reg(dev, DAVINCI_I2C_CLKH_REG, clkh); davinci_i2c_write_reg(dev, DAVINCI_I2C_CLKL_REG, clkl); - dev_dbg(dev->dev, "CLK = %d\n", clk); + dev_dbg(dev->dev, "input_clock = %d, CLK = %d\n", input_clock, clk); dev_dbg(dev->dev, "PSC = %d\n", davinci_i2c_read_reg(dev, DAVINCI_I2C_PSC_REG)); dev_dbg(dev->dev, "CLKL = %d\n", davinci_i2c_read_reg(dev, DAVINCI_I2C_CLKL_REG)); dev_dbg(dev->dev, "CLKH = %d\n", davinci_i2c_read_reg(dev, DAVINCI_I2C_CLKH_REG)); + dev_dbg(dev->dev, "bus_freq = %dkHz, bus_delay = %d\n", + pdata->bus_freq, pdata->bus_delay); /* Take the I2C module out of reset: */ w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG); @@ -233,7 +242,6 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) struct davinci_i2c_dev *dev = i2c_get_adapdata(adap); struct davinci_i2c_platform_data *pdata = dev->dev->platform_data; u32 flag; - u32 stat; u16 w; int r; @@ -254,12 +262,9 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) davinci_i2c_write_reg(dev, DAVINCI_I2C_CNT_REG, dev->buf_len); - init_completion(&dev->cmd_complete); + INIT_COMPLETION(dev->cmd_complete); dev->cmd_err = 0; - /* Clear any pending interrupts by reading the IVR */ - stat = davinci_i2c_read_reg(dev, DAVINCI_I2C_IVR_REG); - /* Take I2C out of reset, configure it as master and set the * start bit */ flag = DAVINCI_I2C_MDR_IRS | DAVINCI_I2C_MDR_MST | DAVINCI_I2C_MDR_STT; @@ -280,20 +285,34 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) MOD_REG_BIT(w, DAVINCI_I2C_IMR_XRDY, 1); davinci_i2c_write_reg(dev, DAVINCI_I2C_IMR_REG, w); + dev->terminate = 0; /* write the data into mode register */ davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, flag); r = wait_for_completion_interruptible_timeout(&dev->cmd_complete, DAVINCI_I2C_TIMEOUT); - dev->buf_len = 0; - if (r < 0) - return r; - if (r == 0) { dev_err(dev->dev, "controller timed out\n"); i2c_davinci_init(dev); + dev->buf_len = 0; return -ETIMEDOUT; } + if (dev->buf_len) { + /* This should be 0 if all bytes were transferred + * or dev->cmd_err denotes an error. + * A signal may have aborted the transfer. + */ + if (r >= 0) { + dev_err(dev->dev, "abnormal termination buf_len=%i\n", + dev->buf_len); + r = -EREMOTEIO; + } + dev->terminate = 1; + wmb(); + dev->buf_len = 0; + } + if (r < 0) + return r; /* no error */ if (likely(!dev->cmd_err)) @@ -338,12 +357,11 @@ i2c_davinci_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num) for (i = 0; i < num; i++) { ret = i2c_davinci_xfer_msg(adap, &msgs[i], (i == (num - 1))); + dev_dbg(dev->dev, "%s [%d/%d] ret: %d\n", __func__, i + 1, num, + ret); if (ret < 0) return ret; } - - dev_dbg(dev->dev, "%s:%d ret: %d\n", __func__, __LINE__, ret); - return num; } @@ -352,6 +370,27 @@ static u32 i2c_davinci_func(struct i2c_adapter *adap) return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK); } +static void terminate_read(struct davinci_i2c_dev *dev) +{ + u16 w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG); + w |= DAVINCI_I2C_MDR_NACK; + davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w); + + /* Throw away data */ + davinci_i2c_read_reg(dev, DAVINCI_I2C_DRR_REG); + if (!dev->terminate) + dev_err(dev->dev, "RDR IRQ while no data requested\n"); +} +static void terminate_write(struct davinci_i2c_dev *dev) +{ + u16 w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG); + w |= DAVINCI_I2C_MDR_RM | DAVINCI_I2C_MDR_STP; + davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w); + + if (!dev->terminate) + dev_err(dev->dev, "TDR IRQ while no data to send\n"); +} + /* * Interrupt service routine. This gets called whenever an I2C interrupt * occurs. @@ -372,12 +411,15 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id) switch (stat) { case DAVINCI_I2C_IVR_AL: + /* Arbitration lost, must retry */ dev->cmd_err |= DAVINCI_I2C_STR_AL; + dev->buf_len = 0; complete(&dev->cmd_complete); break; case DAVINCI_I2C_IVR_NACK: dev->cmd_err |= DAVINCI_I2C_STR_NACK; + dev->buf_len = 0; complete(&dev->cmd_complete); break; @@ -399,9 +441,10 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id) davinci_i2c_write_reg(dev, DAVINCI_I2C_STR_REG, DAVINCI_I2C_IMR_RRDY); - } else - dev_err(dev->dev, "RDR IRQ while no " - "data requested\n"); + } else { + /* signal can terminate transfer */ + terminate_read(dev); + } break; case DAVINCI_I2C_IVR_XRDY: @@ -418,9 +461,10 @@ static irqreturn_t i2c_davinci_isr(int this_irq, void *dev_id) davinci_i2c_write_reg(dev, DAVINCI_I2C_IMR_REG, w); - } else - dev_err(dev->dev, "TDR IRQ while no data to " - "send\n"); + } else { + /* signal can terminate transfer */ + terminate_write(dev); + } break; case DAVINCI_I2C_IVR_SCD: @@ -475,6 +519,7 @@ static int davinci_i2c_probe(struct platform_device *pdev) goto err_release_region; } + init_completion(&dev->cmd_complete); dev->dev = get_device(&pdev->dev); dev->irq = irq->start; platform_set_drvdata(pdev, dev); diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c index b7a9977b025f..7f38c01fb3a0 100644 --- a/drivers/i2c/busses/i2c-elektor.c +++ b/drivers/i2c/busses/i2c-elektor.c @@ -196,13 +196,11 @@ static struct i2c_algo_pcf_data pcf_isa_data = { .getown = pcf_isa_getown, .getclock = pcf_isa_getclock, .waitforpin = pcf_isa_waitforpin, - .udelay = 10, - .timeout = 100, }; static struct i2c_adapter pcf_isa_ops = { .owner = THIS_MODULE, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .id = I2C_HW_P_ELEK, .algo_data = &pcf_isa_data, .name = "i2c-elektor", diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c index 7c1b762aa681..79b455a1f090 100644 --- a/drivers/i2c/busses/i2c-gpio.c +++ b/drivers/i2c/busses/i2c-gpio.c @@ -140,7 +140,7 @@ static int __init i2c_gpio_probe(struct platform_device *pdev) adap->owner = THIS_MODULE; snprintf(adap->name, sizeof(adap->name), "i2c-gpio%d", pdev->id); adap->algo_data = bit_data; - adap->class = I2C_CLASS_HWMON; + adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD; adap->dev.parent = &pdev->dev; /* diff --git a/drivers/i2c/busses/i2c-hydra.c b/drivers/i2c/busses/i2c-hydra.c index f9972f9651e4..1098f21ace13 100644 --- a/drivers/i2c/busses/i2c-hydra.c +++ b/drivers/i2c/busses/i2c-hydra.c @@ -1,7 +1,4 @@ /* - i2c-hydra.c - Part of lm_sensors, Linux kernel modules - for hardware monitoring - i2c Support for the Apple `Hydra' Mac I/O Copyright (c) 1999-2004 Geert Uytterhoeven <geert@linux-m68k.org> diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index b0f771fe4326..dc7ea32b69a8 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -1,10 +1,8 @@ /* - i2c-i801.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, and Mark D. Studebaker <mdsxyz123@yahoo.com> - Copyright (C) 2007 Jean Delvare <khali@linux-fr.org> + Copyright (C) 2007, 2008 Jean Delvare <khali@linux-fr.org> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -64,6 +62,7 @@ #include <linux/ioport.h> #include <linux/init.h> #include <linux/i2c.h> +#include <linux/acpi.h> #include <asm/io.h> /* I801 SMBus address offsets */ @@ -121,6 +120,10 @@ #define SMBHSTSTS_INTR 0x02 #define SMBHSTSTS_HOST_BUSY 0x01 +#define STATUS_FLAGS (SMBHSTSTS_BYTE_DONE | SMBHSTSTS_FAILED | \ + SMBHSTSTS_BUS_ERR | SMBHSTSTS_DEV_ERR | \ + SMBHSTSTS_INTR) + static unsigned long i801_smba; static unsigned char i801_original_hstcfg; static struct pci_driver i801_driver; @@ -132,105 +135,137 @@ static struct pci_dev *I801_dev; #define FEATURE_I2C_BLOCK_READ (1 << 3) static unsigned int i801_features; -static int i801_transaction(int xact) +/* Make sure the SMBus host is ready to start transmitting. + Return 0 if it is, -EBUSY if it is not. */ +static int i801_check_pre(void) { - int temp; - int result = 0; - int timeout = 0; + int status; - dev_dbg(&I801_dev->dev, "Transaction (pre): CNT=%02x, CMD=%02x, " - "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb_p(SMBHSTCNT), - inb_p(SMBHSTCMD), inb_p(SMBHSTADD), inb_p(SMBHSTDAT0), - inb_p(SMBHSTDAT1)); - - /* Make sure the SMBus host is ready to start transmitting */ - /* 0x1f = Failed, Bus_Err, Dev_Err, Intr, Host_Busy */ - if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) { - dev_dbg(&I801_dev->dev, "SMBus busy (%02x). Resetting...\n", - temp); - outb_p(temp, SMBHSTSTS); - if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) { - dev_dbg(&I801_dev->dev, "Failed! (%02x)\n", temp); - return -1; - } else { - dev_dbg(&I801_dev->dev, "Successful!\n"); + status = inb_p(SMBHSTSTS); + if (status & SMBHSTSTS_HOST_BUSY) { + dev_err(&I801_dev->dev, "SMBus is busy, can't use it!\n"); + return -EBUSY; + } + + status &= STATUS_FLAGS; + if (status) { + dev_dbg(&I801_dev->dev, "Clearing status flags (%02x)\n", + status); + outb_p(status, SMBHSTSTS); + status = inb_p(SMBHSTSTS) & STATUS_FLAGS; + if (status) { + dev_err(&I801_dev->dev, + "Failed clearing status flags (%02x)\n", + status); + return -EBUSY; } } - /* the current contents of SMBHSTCNT can be overwritten, since PEC, - * INTREN, SMBSCMD are passed in xact */ - outb_p(xact | I801_START, SMBHSTCNT); + return 0; +} - /* We will always wait for a fraction of a second! */ - do { - msleep(1); - temp = inb_p(SMBHSTSTS); - } while ((temp & SMBHSTSTS_HOST_BUSY) && (timeout++ < MAX_TIMEOUT)); +/* Convert the status register to an error code, and clear it. */ +static int i801_check_post(int status, int timeout) +{ + int result = 0; /* If the SMBus is still busy, we give up */ - if (timeout >= MAX_TIMEOUT) { - dev_dbg(&I801_dev->dev, "SMBus Timeout!\n"); - result = -1; + if (timeout) { + dev_err(&I801_dev->dev, "Transaction timeout\n"); /* try to stop the current command */ dev_dbg(&I801_dev->dev, "Terminating the current operation\n"); outb_p(inb_p(SMBHSTCNT) | SMBHSTCNT_KILL, SMBHSTCNT); msleep(1); outb_p(inb_p(SMBHSTCNT) & (~SMBHSTCNT_KILL), SMBHSTCNT); - } - if (temp & SMBHSTSTS_FAILED) { - result = -1; - dev_dbg(&I801_dev->dev, "Error: Failed bus transaction\n"); + /* Check if it worked */ + status = inb_p(SMBHSTSTS); + if ((status & SMBHSTSTS_HOST_BUSY) || + !(status & SMBHSTSTS_FAILED)) + dev_err(&I801_dev->dev, + "Failed terminating the transaction\n"); + outb_p(STATUS_FLAGS, SMBHSTSTS); + return -ETIMEDOUT; } - if (temp & SMBHSTSTS_BUS_ERR) { - result = -1; - dev_err(&I801_dev->dev, "Bus collision! SMBus may be locked " - "until next hard reset. (sorry!)\n"); - /* Clock stops and slave is stuck in mid-transmission */ + if (status & SMBHSTSTS_FAILED) { + result = -EIO; + dev_err(&I801_dev->dev, "Transaction failed\n"); } - - if (temp & SMBHSTSTS_DEV_ERR) { - result = -1; - dev_dbg(&I801_dev->dev, "Error: no response!\n"); + if (status & SMBHSTSTS_DEV_ERR) { + result = -ENXIO; + dev_dbg(&I801_dev->dev, "No response\n"); + } + if (status & SMBHSTSTS_BUS_ERR) { + result = -EAGAIN; + dev_dbg(&I801_dev->dev, "Lost arbitration\n"); } - if ((inb_p(SMBHSTSTS) & 0x1f) != 0x00) - outb_p(inb(SMBHSTSTS), SMBHSTSTS); - - if ((temp = (0x1f & inb_p(SMBHSTSTS))) != 0x00) { - dev_dbg(&I801_dev->dev, "Failed reset at end of transaction " - "(%02x)\n", temp); + if (result) { + /* Clear error flags */ + outb_p(status & STATUS_FLAGS, SMBHSTSTS); + status = inb_p(SMBHSTSTS) & STATUS_FLAGS; + if (status) { + dev_warn(&I801_dev->dev, "Failed clearing status " + "flags at end of transaction (%02x)\n", + status); + } } - dev_dbg(&I801_dev->dev, "Transaction (post): CNT=%02x, CMD=%02x, " - "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb_p(SMBHSTCNT), - inb_p(SMBHSTCMD), inb_p(SMBHSTADD), inb_p(SMBHSTDAT0), - inb_p(SMBHSTDAT1)); + return result; } +static int i801_transaction(int xact) +{ + int status; + int result; + int timeout = 0; + + result = i801_check_pre(); + if (result < 0) + return result; + + /* the current contents of SMBHSTCNT can be overwritten, since PEC, + * INTREN, SMBSCMD are passed in xact */ + outb_p(xact | I801_START, SMBHSTCNT); + + /* We will always wait for a fraction of a second! */ + do { + msleep(1); + status = inb_p(SMBHSTSTS); + } while ((status & SMBHSTSTS_HOST_BUSY) && (timeout++ < MAX_TIMEOUT)); + + result = i801_check_post(status, timeout >= MAX_TIMEOUT); + if (result < 0) + return result; + + outb_p(SMBHSTSTS_INTR, SMBHSTSTS); + return 0; +} + /* wait for INTR bit as advised by Intel */ static void i801_wait_hwpec(void) { int timeout = 0; - int temp; + int status; do { msleep(1); - temp = inb_p(SMBHSTSTS); - } while ((!(temp & SMBHSTSTS_INTR)) + status = inb_p(SMBHSTSTS); + } while ((!(status & SMBHSTSTS_INTR)) && (timeout++ < MAX_TIMEOUT)); if (timeout >= MAX_TIMEOUT) { dev_dbg(&I801_dev->dev, "PEC Timeout!\n"); } - outb_p(temp, SMBHSTSTS); + outb_p(status, SMBHSTSTS); } static int i801_block_transaction_by_block(union i2c_smbus_data *data, char read_write, int hwpec) { int i, len; + int status; inb_p(SMBHSTCNT); /* reset the data buffer index */ @@ -242,14 +277,15 @@ static int i801_block_transaction_by_block(union i2c_smbus_data *data, outb_p(data->block[i+1], SMBBLKDAT); } - if (i801_transaction(I801_BLOCK_DATA | ENABLE_INT9 | - I801_PEC_EN * hwpec)) - return -1; + status = i801_transaction(I801_BLOCK_DATA | ENABLE_INT9 | + I801_PEC_EN * hwpec); + if (status) + return status; if (read_write == I2C_SMBUS_READ) { len = inb_p(SMBHSTDAT0); if (len < 1 || len > I2C_SMBUS_BLOCK_MAX) - return -1; + return -EPROTO; data->block[0] = len; for (i = 0; i < len; i++) @@ -264,10 +300,13 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data, { int i, len; int smbcmd; - int temp; - int result = 0; + int status; + int result; int timeout; - unsigned char errmask; + + result = i801_check_pre(); + if (result < 0) + return result; len = data->block[0]; @@ -291,36 +330,6 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data, } outb_p(smbcmd | ENABLE_INT9, SMBHSTCNT); - dev_dbg(&I801_dev->dev, "Block (pre %d): CNT=%02x, CMD=%02x, " - "ADD=%02x, DAT0=%02x, DAT1=%02x, BLKDAT=%02x\n", i, - inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD), - inb_p(SMBHSTDAT0), inb_p(SMBHSTDAT1), inb_p(SMBBLKDAT)); - - /* Make sure the SMBus host is ready to start transmitting */ - temp = inb_p(SMBHSTSTS); - if (i == 1) { - /* Erroneous conditions before transaction: - * Byte_Done, Failed, Bus_Err, Dev_Err, Intr, Host_Busy */ - errmask = 0x9f; - } else { - /* Erroneous conditions during transaction: - * Failed, Bus_Err, Dev_Err, Intr */ - errmask = 0x1e; - } - if (temp & errmask) { - dev_dbg(&I801_dev->dev, "SMBus busy (%02x). " - "Resetting...\n", temp); - outb_p(temp, SMBHSTSTS); - if (((temp = inb_p(SMBHSTSTS)) & errmask) != 0x00) { - dev_err(&I801_dev->dev, - "Reset failed! (%02x)\n", temp); - return -1; - } - if (i != 1) - /* if die in middle of block transaction, fail */ - return -1; - } - if (i == 1) outb_p(inb(SMBHSTCNT) | I801_START, SMBHSTCNT); @@ -328,41 +337,28 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data, timeout = 0; do { msleep(1); - temp = inb_p(SMBHSTSTS); + status = inb_p(SMBHSTSTS); } - while ((!(temp & SMBHSTSTS_BYTE_DONE)) + while ((!(status & SMBHSTSTS_BYTE_DONE)) && (timeout++ < MAX_TIMEOUT)); - /* If the SMBus is still busy, we give up */ - if (timeout >= MAX_TIMEOUT) { - /* try to stop the current command */ - dev_dbg(&I801_dev->dev, "Terminating the current " - "operation\n"); - outb_p(inb_p(SMBHSTCNT) | SMBHSTCNT_KILL, SMBHSTCNT); - msleep(1); - outb_p(inb_p(SMBHSTCNT) & (~SMBHSTCNT_KILL), - SMBHSTCNT); - result = -1; - dev_dbg(&I801_dev->dev, "SMBus Timeout!\n"); - } - - if (temp & SMBHSTSTS_FAILED) { - result = -1; - dev_dbg(&I801_dev->dev, - "Error: Failed bus transaction\n"); - } else if (temp & SMBHSTSTS_BUS_ERR) { - result = -1; - dev_err(&I801_dev->dev, "Bus collision!\n"); - } else if (temp & SMBHSTSTS_DEV_ERR) { - result = -1; - dev_dbg(&I801_dev->dev, "Error: no response!\n"); - } + result = i801_check_post(status, timeout >= MAX_TIMEOUT); + if (result < 0) + return result; if (i == 1 && read_write == I2C_SMBUS_READ && command != I2C_SMBUS_I2C_BLOCK_DATA) { len = inb_p(SMBHSTDAT0); - if (len < 1 || len > I2C_SMBUS_BLOCK_MAX) - return -1; + if (len < 1 || len > I2C_SMBUS_BLOCK_MAX) { + dev_err(&I801_dev->dev, + "Illegal SMBus block read size %d\n", + len); + /* Recover */ + while (inb_p(SMBHSTSTS) & SMBHSTSTS_HOST_BUSY) + outb_p(SMBHSTSTS_BYTE_DONE, SMBHSTSTS); + outb_p(SMBHSTSTS_INTR, SMBHSTSTS); + return -EPROTO; + } data->block[0] = len; } @@ -371,30 +367,19 @@ static int i801_block_transaction_byte_by_byte(union i2c_smbus_data *data, data->block[i] = inb_p(SMBBLKDAT); if (read_write == I2C_SMBUS_WRITE && i+1 <= len) outb_p(data->block[i+1], SMBBLKDAT); - if ((temp & 0x9e) != 0x00) - outb_p(temp, SMBHSTSTS); /* signals SMBBLKDAT ready */ - - if ((temp = (0x1e & inb_p(SMBHSTSTS))) != 0x00) { - dev_dbg(&I801_dev->dev, - "Bad status (%02x) at end of transaction\n", - temp); - } - dev_dbg(&I801_dev->dev, "Block (post %d): CNT=%02x, CMD=%02x, " - "ADD=%02x, DAT0=%02x, DAT1=%02x, BLKDAT=%02x\n", i, - inb_p(SMBHSTCNT), inb_p(SMBHSTCMD), inb_p(SMBHSTADD), - inb_p(SMBHSTDAT0), inb_p(SMBHSTDAT1), inb_p(SMBBLKDAT)); - if (result < 0) - return result; + /* signals SMBBLKDAT ready */ + outb_p(SMBHSTSTS_BYTE_DONE | SMBHSTSTS_INTR, SMBHSTSTS); } - return result; + + return 0; } static int i801_set_block_buffer_mode(void) { outb_p(inb_p(SMBAUXCTL) | SMBAUXCTL_E32B, SMBAUXCTL); if ((inb_p(SMBAUXCTL) & SMBAUXCTL_E32B) == 0) - return -1; + return -EIO; return 0; } @@ -414,7 +399,7 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write, } else if (!(i801_features & FEATURE_I2C_BLOCK_READ)) { dev_err(&I801_dev->dev, "I2C block read is unsupported!\n"); - return -1; + return -EOPNOTSUPP; } } @@ -449,7 +434,7 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write, return result; } -/* Return -1 on error. */ +/* Return negative errno on error. */ static s32 i801_access(struct i2c_adapter * adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data) @@ -511,10 +496,9 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr, outb_p(command, SMBHSTCMD); block = 1; break; - case I2C_SMBUS_PROC_CALL: default: dev_err(&I801_dev->dev, "Unsupported transaction %d\n", size); - return -1; + return -EOPNOTSUPP; } if (hwpec) /* enable/disable hardware PEC */ @@ -537,7 +521,7 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr, if(block) return ret; if(ret) - return -1; + return ret; if ((read_write == I2C_SMBUS_WRITE) || (xact == I801_QUICK)) return 0; @@ -572,7 +556,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter i801_adapter = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_I801, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, }; @@ -639,6 +623,10 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id goto exit; } + err = acpi_check_resource_conflict(&dev->resource[SMBBAR]); + if (err) + goto exit; + err = pci_request_region(dev, SMBBAR, i801_driver.name); if (err) { dev_err(&dev->dev, "Failed to request SMBus region " diff --git a/drivers/i2c/busses/i2c-i810.c b/drivers/i2c/busses/i2c-i810.c deleted file mode 100644 index 42e8d94c276f..000000000000 --- a/drivers/i2c/busses/i2c-i810.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - i2c-i810.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring - Copyright (c) 1998, 1999, 2000 Frodo Looijaard <frodol@dds.nl>, - Philip Edelbrock <phil@netroedge.com>, - Ralph Metzler <rjkm@thp.uni-koeln.de>, and - Mark D. Studebaker <mdsxyz123@yahoo.com> - - Based on code written by Ralph Metzler <rjkm@thp.uni-koeln.de> and - Simon Vogl - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ -/* - This interfaces to the I810/I815 to provide access to - the DDC Bus and the I2C Bus. - - SUPPORTED DEVICES PCI ID - i810AA 7121 - i810AB 7123 - i810E 7125 - i815 1132 - i845G 2562 -*/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/i2c.h> -#include <linux/i2c-algo-bit.h> -#include <asm/io.h> - -/* GPIO register locations */ -#define I810_IOCONTROL_OFFSET 0x5000 -#define I810_HVSYNC 0x00 /* not used */ -#define I810_GPIOA 0x10 -#define I810_GPIOB 0x14 - -/* bit locations in the registers */ -#define SCL_DIR_MASK 0x0001 -#define SCL_DIR 0x0002 -#define SCL_VAL_MASK 0x0004 -#define SCL_VAL_OUT 0x0008 -#define SCL_VAL_IN 0x0010 -#define SDA_DIR_MASK 0x0100 -#define SDA_DIR 0x0200 -#define SDA_VAL_MASK 0x0400 -#define SDA_VAL_OUT 0x0800 -#define SDA_VAL_IN 0x1000 - -/* initialization states */ -#define INIT1 0x1 -#define INIT2 0x2 -#define INIT3 0x4 - -/* delays */ -#define CYCLE_DELAY 10 -#define TIMEOUT (HZ / 2) - -static void __iomem *ioaddr; - -/* The i810 GPIO registers have individual masks for each bit - so we never have to read before writing. Nice. */ - -static void bit_i810i2c_setscl(void *data, int val) -{ - writel((val ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK, - ioaddr + I810_GPIOB); - readl(ioaddr + I810_GPIOB); /* flush posted write */ -} - -static void bit_i810i2c_setsda(void *data, int val) -{ - writel((val ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK, - ioaddr + I810_GPIOB); - readl(ioaddr + I810_GPIOB); /* flush posted write */ -} - -/* The GPIO pins are open drain, so the pins could always remain outputs. - However, some chip versions don't latch the inputs unless they - are set as inputs. - We rely on the i2c-algo-bit routines to set the pins high before - reading the input from other chips. Following guidance in the 815 - prog. ref. guide, we do a "dummy write" of 0 to the register before - reading which forces the input value to be latched. We presume this - applies to the 810 as well; shouldn't hurt anyway. This is necessary to get - i2c_algo_bit bit_test=1 to pass. */ - -static int bit_i810i2c_getscl(void *data) -{ - writel(SCL_DIR_MASK, ioaddr + I810_GPIOB); - writel(0, ioaddr + I810_GPIOB); - return (0 != (readl(ioaddr + I810_GPIOB) & SCL_VAL_IN)); -} - -static int bit_i810i2c_getsda(void *data) -{ - writel(SDA_DIR_MASK, ioaddr + I810_GPIOB); - writel(0, ioaddr + I810_GPIOB); - return (0 != (readl(ioaddr + I810_GPIOB) & SDA_VAL_IN)); -} - -static void bit_i810ddc_setscl(void *data, int val) -{ - writel((val ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK, - ioaddr + I810_GPIOA); - readl(ioaddr + I810_GPIOA); /* flush posted write */ -} - -static void bit_i810ddc_setsda(void *data, int val) -{ - writel((val ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK, - ioaddr + I810_GPIOA); - readl(ioaddr + I810_GPIOA); /* flush posted write */ -} - -static int bit_i810ddc_getscl(void *data) -{ - writel(SCL_DIR_MASK, ioaddr + I810_GPIOA); - writel(0, ioaddr + I810_GPIOA); - return (0 != (readl(ioaddr + I810_GPIOA) & SCL_VAL_IN)); -} - -static int bit_i810ddc_getsda(void *data) -{ - writel(SDA_DIR_MASK, ioaddr + I810_GPIOA); - writel(0, ioaddr + I810_GPIOA); - return (0 != (readl(ioaddr + I810_GPIOA) & SDA_VAL_IN)); -} - -static int config_i810(struct pci_dev *dev) -{ - unsigned long cadr; - - /* map I810 memory */ - cadr = dev->resource[1].start; - cadr += I810_IOCONTROL_OFFSET; - cadr &= PCI_BASE_ADDRESS_MEM_MASK; - ioaddr = ioremap_nocache(cadr, 0x1000); - if (ioaddr) { - bit_i810i2c_setscl(NULL, 1); - bit_i810i2c_setsda(NULL, 1); - bit_i810ddc_setscl(NULL, 1); - bit_i810ddc_setsda(NULL, 1); - return 0; - } - return -ENODEV; -} - -static struct i2c_algo_bit_data i810_i2c_bit_data = { - .setsda = bit_i810i2c_setsda, - .setscl = bit_i810i2c_setscl, - .getsda = bit_i810i2c_getsda, - .getscl = bit_i810i2c_getscl, - .udelay = CYCLE_DELAY, - .timeout = TIMEOUT, -}; - -static struct i2c_adapter i810_i2c_adapter = { - .owner = THIS_MODULE, - .id = I2C_HW_B_I810, - .name = "I810/I815 I2C Adapter", - .algo_data = &i810_i2c_bit_data, -}; - -static struct i2c_algo_bit_data i810_ddc_bit_data = { - .setsda = bit_i810ddc_setsda, - .setscl = bit_i810ddc_setscl, - .getsda = bit_i810ddc_getsda, - .getscl = bit_i810ddc_getscl, - .udelay = CYCLE_DELAY, - .timeout = TIMEOUT, -}; - -static struct i2c_adapter i810_ddc_adapter = { - .owner = THIS_MODULE, - .id = I2C_HW_B_I810, - .name = "I810/I815 DDC Adapter", - .algo_data = &i810_ddc_bit_data, -}; - -static struct pci_device_id i810_ids[] __devinitdata = { - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG1) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810E_IG) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_IG) }, - { 0, }, -}; - -MODULE_DEVICE_TABLE (pci, i810_ids); - -static int __devinit i810_probe(struct pci_dev *dev, const struct pci_device_id *id) -{ - int retval; - - retval = config_i810(dev); - if (retval) - return retval; - dev_info(&dev->dev, "i810/i815 i2c device found.\n"); - - /* set up the sysfs linkage to our parent device */ - i810_i2c_adapter.dev.parent = &dev->dev; - i810_ddc_adapter.dev.parent = &dev->dev; - - retval = i2c_bit_add_bus(&i810_i2c_adapter); - if (retval) - return retval; - retval = i2c_bit_add_bus(&i810_ddc_adapter); - if (retval) - i2c_del_adapter(&i810_i2c_adapter); - return retval; -} - -static void __devexit i810_remove(struct pci_dev *dev) -{ - i2c_del_adapter(&i810_ddc_adapter); - i2c_del_adapter(&i810_i2c_adapter); - iounmap(ioaddr); -} - -static struct pci_driver i810_driver = { - .name = "i810_smbus", - .id_table = i810_ids, - .probe = i810_probe, - .remove = __devexit_p(i810_remove), -}; - -static int __init i2c_i810_init(void) -{ - return pci_register_driver(&i810_driver); -} - -static void __exit i2c_i810_exit(void) -{ - pci_unregister_driver(&i810_driver); -} - -MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " - "Philip Edelbrock <phil@netroedge.com>, " - "Ralph Metzler <rjkm@thp.uni-koeln.de>, " - "and Mark D. Studebaker <mdsxyz123@yahoo.com>"); -MODULE_DESCRIPTION("I810/I815 I2C/DDC driver"); -MODULE_LICENSE("GPL"); - -module_init(i2c_i810_init); -module_exit(i2c_i810_exit); diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c index 85dbf34382e1..070f078b5f5c 100644 --- a/drivers/i2c/busses/i2c-ibm_iic.c +++ b/drivers/i2c/busses/i2c-ibm_iic.c @@ -42,13 +42,7 @@ #include <asm/io.h> #include <linux/i2c.h> #include <linux/i2c-id.h> - -#ifdef CONFIG_IBM_OCP -#include <asm/ocp.h> -#include <asm/ibm4xx.h> -#else #include <linux/of_platform.h> -#endif #include "i2c-ibm_iic.h" @@ -665,180 +659,6 @@ static inline u8 iic_clckdiv(unsigned int opb) return (u8)((opb + 9) / 10 - 1); } -#ifdef CONFIG_IBM_OCP -/* - * Register single IIC interface - */ -static int __devinit iic_probe(struct ocp_device *ocp){ - - struct ibm_iic_private* dev; - struct i2c_adapter* adap; - struct ocp_func_iic_data* iic_data = ocp->def->additions; - int ret; - - if (!iic_data) - printk(KERN_WARNING"ibm-iic%d: missing additional data!\n", - ocp->def->index); - - if (!(dev = kzalloc(sizeof(*dev), GFP_KERNEL))) { - printk(KERN_ERR "ibm-iic%d: failed to allocate device data\n", - ocp->def->index); - return -ENOMEM; - } - - dev->idx = ocp->def->index; - ocp_set_drvdata(ocp, dev); - - if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs), - "ibm_iic")) { - ret = -EBUSY; - goto fail1; - } - - if (!(dev->vaddr = ioremap(ocp->def->paddr, sizeof(struct iic_regs)))){ - printk(KERN_ERR "ibm-iic%d: failed to ioremap device registers\n", - dev->idx); - ret = -ENXIO; - goto fail2; - } - - init_waitqueue_head(&dev->wq); - - dev->irq = iic_force_poll ? -1 : ocp->def->irq; - if (dev->irq >= 0){ - /* Disable interrupts until we finish initialization, - assumes level-sensitive IRQ setup... - */ - iic_interrupt_mode(dev, 0); - if (request_irq(dev->irq, iic_handler, 0, "IBM IIC", dev)){ - printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n", - dev->idx, dev->irq); - /* Fallback to the polling mode */ - dev->irq = -1; - } - } - - if (dev->irq < 0) - printk(KERN_WARNING "ibm-iic%d: using polling mode\n", - dev->idx); - - /* Board specific settings */ - dev->fast_mode = iic_force_fast ? 1 : (iic_data ? iic_data->fast_mode : 0); - - /* clckdiv is the same for *all* IIC interfaces, - * but I'd rather make a copy than introduce another global. --ebs - */ - dev->clckdiv = iic_clckdiv(ocp_sys_info.opb_bus_freq); - DBG("%d: clckdiv = %d\n", dev->idx, dev->clckdiv); - - /* Initialize IIC interface */ - iic_dev_init(dev); - - /* Register it with i2c layer */ - adap = &dev->adap; - adap->dev.parent = &ocp->dev; - strcpy(adap->name, "IBM IIC"); - i2c_set_adapdata(adap, dev); - adap->id = I2C_HW_OCP; - adap->class = I2C_CLASS_HWMON; - adap->algo = &iic_algo; - adap->client_register = NULL; - adap->client_unregister = NULL; - adap->timeout = 1; - - /* - * If "dev->idx" is negative we consider it as zero. - * The reason to do so is to avoid sysfs names that only make - * sense when there are multiple adapters. - */ - adap->nr = dev->idx >= 0 ? dev->idx : 0; - - if ((ret = i2c_add_numbered_adapter(adap)) < 0) { - printk(KERN_ERR "ibm-iic%d: failed to register i2c adapter\n", - dev->idx); - goto fail; - } - - printk(KERN_INFO "ibm-iic%d: using %s mode\n", dev->idx, - dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)"); - - return 0; - -fail: - if (dev->irq >= 0){ - iic_interrupt_mode(dev, 0); - free_irq(dev->irq, dev); - } - - iounmap(dev->vaddr); -fail2: - release_mem_region(ocp->def->paddr, sizeof(struct iic_regs)); -fail1: - ocp_set_drvdata(ocp, NULL); - kfree(dev); - return ret; -} - -/* - * Cleanup initialized IIC interface - */ -static void __devexit iic_remove(struct ocp_device *ocp) -{ - struct ibm_iic_private* dev = (struct ibm_iic_private*)ocp_get_drvdata(ocp); - BUG_ON(dev == NULL); - if (i2c_del_adapter(&dev->adap)){ - printk(KERN_ERR "ibm-iic%d: failed to delete i2c adapter :(\n", - dev->idx); - /* That's *very* bad, just shutdown IRQ ... */ - if (dev->irq >= 0){ - iic_interrupt_mode(dev, 0); - free_irq(dev->irq, dev); - dev->irq = -1; - } - } else { - if (dev->irq >= 0){ - iic_interrupt_mode(dev, 0); - free_irq(dev->irq, dev); - } - iounmap(dev->vaddr); - release_mem_region(ocp->def->paddr, sizeof(struct iic_regs)); - kfree(dev); - } -} - -static struct ocp_device_id ibm_iic_ids[] __devinitdata = -{ - { .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_IIC }, - { .vendor = OCP_VENDOR_INVALID } -}; - -MODULE_DEVICE_TABLE(ocp, ibm_iic_ids); - -static struct ocp_driver ibm_iic_driver = -{ - .name = "iic", - .id_table = ibm_iic_ids, - .probe = iic_probe, - .remove = __devexit_p(iic_remove), -#if defined(CONFIG_PM) - .suspend = NULL, - .resume = NULL, -#endif -}; - -static int __init iic_init(void) -{ - printk(KERN_INFO "IBM IIC driver v" DRIVER_VERSION "\n"); - return ocp_register_driver(&ibm_iic_driver); -} - -static void __exit iic_exit(void) -{ - ocp_unregister_driver(&ibm_iic_driver); -} - -#else /* !CONFIG_IBM_OCP */ - static int __devinit iic_request_irq(struct of_device *ofdev, struct ibm_iic_private *dev) { @@ -934,7 +754,7 @@ static int __devinit iic_probe(struct of_device *ofdev, strlcpy(adap->name, "IBM IIC", sizeof(adap->name)); i2c_set_adapdata(adap, dev); adap->id = I2C_HW_OCP; - adap->class = I2C_CLASS_HWMON; + adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD; adap->algo = &iic_algo; adap->timeout = 1; adap->nr = dev->idx; @@ -987,11 +807,7 @@ static int __devexit iic_remove(struct of_device *ofdev) } static const struct of_device_id ibm_iic_match[] = { - { .compatible = "ibm,iic-405ex", }, - { .compatible = "ibm,iic-405gp", }, - { .compatible = "ibm,iic-440gp", }, - { .compatible = "ibm,iic-440gpx", }, - { .compatible = "ibm,iic-440grx", }, + { .compatible = "ibm,iic", }, {} }; @@ -1011,7 +827,6 @@ static void __exit iic_exit(void) { of_unregister_platform_driver(&ibm_iic_driver); } -#endif /* CONFIG_IBM_OCP */ module_init(iic_init); module_exit(iic_exit); diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c index 39884e797594..fc2714ac0c0f 100644 --- a/drivers/i2c/busses/i2c-iop3xx.c +++ b/drivers/i2c/busses/i2c-iop3xx.c @@ -482,7 +482,7 @@ iop3xx_i2c_probe(struct platform_device *pdev) memcpy(new_adapter->name, pdev->name, strlen(pdev->name)); new_adapter->id = I2C_HW_IOP3XX; new_adapter->owner = THIS_MODULE; - new_adapter->class = I2C_CLASS_HWMON; + new_adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD; new_adapter->dev.parent = &pdev->dev; new_adapter->nr = pdev->id; diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c new file mode 100644 index 000000000000..b9c01aa90036 --- /dev/null +++ b/drivers/i2c/busses/i2c-isch.c @@ -0,0 +1,339 @@ +/* + i2c-isch.c - Linux kernel driver for Intel SCH chipset SMBus + - Based on i2c-piix4.c + Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl> and + Philip Edelbrock <phil@netroedge.com> + - Intel SCH support + Copyright (c) 2007 - 2008 Jacob Jun Pan <jacob.jun.pan@intel.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +/* + Supports: + Intel SCH chipsets (AF82US15W, AF82US15L, AF82UL11L) + Note: we assume there can only be one device, with one SMBus interface. +*/ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/stddef.h> +#include <linux/ioport.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/acpi.h> + +/* SCH SMBus address offsets */ +#define SMBHSTCNT (0 + sch_smba) +#define SMBHSTSTS (1 + sch_smba) +#define SMBHSTADD (4 + sch_smba) /* TSA */ +#define SMBHSTCMD (5 + sch_smba) +#define SMBHSTDAT0 (6 + sch_smba) +#define SMBHSTDAT1 (7 + sch_smba) +#define SMBBLKDAT (0x20 + sch_smba) + +/* count for request_region */ +#define SMBIOSIZE 64 + +/* PCI Address Constants */ +#define SMBBA_SCH 0x40 + +/* Other settings */ +#define MAX_TIMEOUT 500 + +/* I2C constants */ +#define SCH_QUICK 0x00 +#define SCH_BYTE 0x01 +#define SCH_BYTE_DATA 0x02 +#define SCH_WORD_DATA 0x03 +#define SCH_BLOCK_DATA 0x05 + +static unsigned short sch_smba; +static struct pci_driver sch_driver; +static struct i2c_adapter sch_adapter; + +/* + * Start the i2c transaction -- the i2c_access will prepare the transaction + * and this function will execute it. + * return 0 for success and others for failure. + */ +static int sch_transaction(void) +{ + int temp; + int result = 0; + int timeout = 0; + + dev_dbg(&sch_adapter.dev, "Transaction (pre): CNT=%02x, CMD=%02x, " + "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb(SMBHSTCNT), + inb(SMBHSTCMD), inb(SMBHSTADD), inb(SMBHSTDAT0), + inb(SMBHSTDAT1)); + + /* Make sure the SMBus host is ready to start transmitting */ + temp = inb(SMBHSTSTS) & 0x0f; + if (temp) { + /* Can not be busy since we checked it in sch_access */ + if (temp & 0x01) { + dev_dbg(&sch_adapter.dev, "Completion (%02x). " + "Clear...\n", temp); + } + if (temp & 0x06) { + dev_dbg(&sch_adapter.dev, "SMBus error (%02x). " + "Resetting...\n", temp); + } + outb(temp, SMBHSTSTS); + temp = inb(SMBHSTSTS) & 0x0f; + if (temp) { + dev_err(&sch_adapter.dev, + "SMBus is not ready: (%02x)\n", temp); + return -EAGAIN; + } + } + + /* start the transaction by setting bit 4 */ + outb(inb(SMBHSTCNT) | 0x10, SMBHSTCNT); + + do { + msleep(1); + temp = inb(SMBHSTSTS) & 0x0f; + } while ((temp & 0x08) && (timeout++ < MAX_TIMEOUT)); + + /* If the SMBus is still busy, we give up */ + if (timeout >= MAX_TIMEOUT) { + dev_err(&sch_adapter.dev, "SMBus Timeout!\n"); + result = -ETIMEDOUT; + } + if (temp & 0x04) { + result = -EIO; + dev_dbg(&sch_adapter.dev, "Bus collision! SMBus may be " + "locked until next hard reset. (sorry!)\n"); + /* Clock stops and slave is stuck in mid-transmission */ + } else if (temp & 0x02) { + result = -EIO; + dev_err(&sch_adapter.dev, "Error: no response!\n"); + } else if (temp & 0x01) { + dev_dbg(&sch_adapter.dev, "Post complete!\n"); + outb(temp, SMBHSTSTS); + temp = inb(SMBHSTSTS) & 0x07; + if (temp & 0x06) { + /* Completion clear failed */ + dev_dbg(&sch_adapter.dev, "Failed reset at end of " + "transaction (%02x), Bus error!\n", temp); + } + } else { + result = -ENXIO; + dev_dbg(&sch_adapter.dev, "No such address.\n"); + } + dev_dbg(&sch_adapter.dev, "Transaction (post): CNT=%02x, CMD=%02x, " + "ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb(SMBHSTCNT), + inb(SMBHSTCMD), inb(SMBHSTADD), inb(SMBHSTDAT0), + inb(SMBHSTDAT1)); + return result; +} + +/* + * This is the main access entry for i2c-sch access + * adap is i2c_adapter pointer, addr is the i2c device bus address, read_write + * (0 for read and 1 for write), size is i2c transaction type and data is the + * union of transaction for data to be transfered or data read from bus. + * return 0 for success and others for failure. + */ +static s32 sch_access(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, union i2c_smbus_data *data) +{ + int i, len, temp, rc; + + /* Make sure the SMBus host is not busy */ + temp = inb(SMBHSTSTS) & 0x0f; + if (temp & 0x08) { + dev_dbg(&sch_adapter.dev, "SMBus busy (%02x)\n", temp); + return -EAGAIN; + } + dev_dbg(&sch_adapter.dev, "access size: %d %s\n", size, + (read_write)?"READ":"WRITE"); + switch (size) { + case I2C_SMBUS_QUICK: + outb((addr << 1) | read_write, SMBHSTADD); + size = SCH_QUICK; + break; + case I2C_SMBUS_BYTE: + outb((addr << 1) | read_write, SMBHSTADD); + if (read_write == I2C_SMBUS_WRITE) + outb(command, SMBHSTCMD); + size = SCH_BYTE; + break; + case I2C_SMBUS_BYTE_DATA: + outb((addr << 1) | read_write, SMBHSTADD); + outb(command, SMBHSTCMD); + if (read_write == I2C_SMBUS_WRITE) + outb(data->byte, SMBHSTDAT0); + size = SCH_BYTE_DATA; + break; + case I2C_SMBUS_WORD_DATA: + outb((addr << 1) | read_write, SMBHSTADD); + outb(command, SMBHSTCMD); + if (read_write == I2C_SMBUS_WRITE) { + outb(data->word & 0xff, SMBHSTDAT0); + outb((data->word & 0xff00) >> 8, SMBHSTDAT1); + } + size = SCH_WORD_DATA; + break; + case I2C_SMBUS_BLOCK_DATA: + outb((addr << 1) | read_write, SMBHSTADD); + outb(command, SMBHSTCMD); + if (read_write == I2C_SMBUS_WRITE) { + len = data->block[0]; + if (len == 0 || len > I2C_SMBUS_BLOCK_MAX) + return -EINVAL; + outb(len, SMBHSTDAT0); + for (i = 1; i <= len; i++) + outb(data->block[i], SMBBLKDAT+i-1); + } + size = SCH_BLOCK_DATA; + break; + default: + dev_warn(&adap->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; + } + dev_dbg(&sch_adapter.dev, "write size %d to 0x%04x\n", size, SMBHSTCNT); + outb((inb(SMBHSTCNT) & 0xb0) | (size & 0x7), SMBHSTCNT); + + rc = sch_transaction(); + if (rc) /* Error in transaction */ + return rc; + + if ((read_write == I2C_SMBUS_WRITE) || (size == SCH_QUICK)) + return 0; + + switch (size) { + case SCH_BYTE: + case SCH_BYTE_DATA: + data->byte = inb(SMBHSTDAT0); + break; + case SCH_WORD_DATA: + data->word = inb(SMBHSTDAT0) + (inb(SMBHSTDAT1) << 8); + break; + case SCH_BLOCK_DATA: + data->block[0] = inb(SMBHSTDAT0); + if (data->block[0] == 0 || data->block[0] > I2C_SMBUS_BLOCK_MAX) + return -EPROTO; + for (i = 1; i <= data->block[0]; i++) + data->block[i] = inb(SMBBLKDAT+i-1); + break; + } + return 0; +} + +static u32 sch_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | + I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | + I2C_FUNC_SMBUS_BLOCK_DATA; +} + +static const struct i2c_algorithm smbus_algorithm = { + .smbus_xfer = sch_access, + .functionality = sch_func, +}; + +static struct i2c_adapter sch_adapter = { + .owner = THIS_MODULE, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, + .algo = &smbus_algorithm, +}; + +static struct pci_device_id sch_ids[] = { + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, sch_ids); + +static int __devinit sch_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + int retval; + unsigned int smba; + + pci_read_config_dword(dev, SMBBA_SCH, &smba); + if (!(smba & (1 << 31))) { + dev_err(&dev->dev, "SMBus I/O space disabled!\n"); + return -ENODEV; + } + + sch_smba = (unsigned short)smba; + if (sch_smba == 0) { + dev_err(&dev->dev, "SMBus base address uninitialized!\n"); + return -ENODEV; + } + if (acpi_check_region(sch_smba, SMBIOSIZE, sch_driver.name)) + return -EBUSY; + if (!request_region(sch_smba, SMBIOSIZE, sch_driver.name)) { + dev_err(&dev->dev, "SMBus region 0x%x already in use!\n", + sch_smba); + return -EBUSY; + } + dev_dbg(&dev->dev, "SMBA = 0x%X\n", sch_smba); + + /* set up the sysfs linkage to our parent device */ + sch_adapter.dev.parent = &dev->dev; + + snprintf(sch_adapter.name, sizeof(sch_adapter.name), + "SMBus SCH adapter at %04x", sch_smba); + + retval = i2c_add_adapter(&sch_adapter); + if (retval) { + dev_err(&dev->dev, "Couldn't register adapter!\n"); + release_region(sch_smba, SMBIOSIZE); + sch_smba = 0; + } + + return retval; +} + +static void __devexit sch_remove(struct pci_dev *dev) +{ + if (sch_smba) { + i2c_del_adapter(&sch_adapter); + release_region(sch_smba, SMBIOSIZE); + sch_smba = 0; + } +} + +static struct pci_driver sch_driver = { + .name = "isch_smbus", + .id_table = sch_ids, + .probe = sch_probe, + .remove = __devexit_p(sch_remove), +}; + +static int __init i2c_sch_init(void) +{ + return pci_register_driver(&sch_driver); +} + +static void __exit i2c_sch_exit(void) +{ + pci_unregister_driver(&sch_driver); +} + +MODULE_AUTHOR("Jacob Pan <jacob.jun.pan@intel.com>"); +MODULE_DESCRIPTION("Intel SCH SMBus driver"); +MODULE_LICENSE("GPL"); + +module_init(i2c_sch_init); +module_exit(i2c_sch_exit); diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index a076129de7e8..10b9342a36c2 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -311,7 +311,7 @@ static struct i2c_adapter mpc_ops = { .name = "MPC adapter", .id = I2C_HW_MPC107, .algo = &mpc_algo, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .timeout = 1, }; diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index 036e6a883e67..9e8118d2fe64 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c @@ -530,7 +530,7 @@ mv64xxx_i2c_probe(struct platform_device *pd) drv_data->adapter.id = I2C_HW_MV64XXX; drv_data->adapter.algo = &mv64xxx_i2c_algo; drv_data->adapter.owner = THIS_MODULE; - drv_data->adapter.class = I2C_CLASS_HWMON; + drv_data->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD; drv_data->adapter.timeout = pdata->timeout; drv_data->adapter.nr = pd->id; platform_set_drvdata(pd, drv_data); diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c new file mode 100644 index 000000000000..6a8995dfd0bb --- /dev/null +++ b/drivers/i2c/busses/i2c-nforce2-s4985.c @@ -0,0 +1,257 @@ +/* + * i2c-nforce2-s4985.c - i2c-nforce2 extras for the Tyan S4985 motherboard + * + * Copyright (C) 2008 Jean Delvare <khali@linux-fr.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* + * We select the channels by sending commands to the Philips + * PCA9556 chip at I2C address 0x18. The main adapter is used for + * the non-multiplexed part of the bus, and 4 virtual adapters + * are defined for the multiplexed addresses: 0x50-0x53 (memory + * module EEPROM) located on channels 1-4. We define one virtual + * adapter per CPU, which corresponds to one multiplexed channel: + * CPU0: virtual adapter 1, channel 1 + * CPU1: virtual adapter 2, channel 2 + * CPU2: virtual adapter 3, channel 3 + * CPU3: virtual adapter 4, channel 4 + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/mutex.h> + +extern struct i2c_adapter *nforce2_smbus; + +static struct i2c_adapter *s4985_adapter; +static struct i2c_algorithm *s4985_algo; + +/* Wrapper access functions for multiplexed SMBus */ +static DEFINE_MUTEX(nforce2_lock); + +static s32 nforce2_access_virt0(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, + union i2c_smbus_data *data) +{ + int error; + + /* We exclude the multiplexed addresses */ + if ((addr & 0xfc) == 0x50 || (addr & 0xfc) == 0x30 + || addr == 0x18) + return -ENXIO; + + mutex_lock(&nforce2_lock); + error = nforce2_smbus->algo->smbus_xfer(adap, addr, flags, read_write, + command, size, data); + mutex_unlock(&nforce2_lock); + + return error; +} + +/* We remember the last used channels combination so as to only switch + channels when it is really needed. This greatly reduces the SMBus + overhead, but also assumes that nobody will be writing to the PCA9556 + in our back. */ +static u8 last_channels; + +static inline s32 nforce2_access_channel(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, + union i2c_smbus_data *data, + u8 channels) +{ + int error; + + /* We exclude the non-multiplexed addresses */ + if ((addr & 0xfc) != 0x50 && (addr & 0xfc) != 0x30) + return -ENXIO; + + mutex_lock(&nforce2_lock); + if (last_channels != channels) { + union i2c_smbus_data mplxdata; + mplxdata.byte = channels; + + error = nforce2_smbus->algo->smbus_xfer(adap, 0x18, 0, + I2C_SMBUS_WRITE, 0x01, + I2C_SMBUS_BYTE_DATA, + &mplxdata); + if (error) + goto UNLOCK; + last_channels = channels; + } + error = nforce2_smbus->algo->smbus_xfer(adap, addr, flags, read_write, + command, size, data); + +UNLOCK: + mutex_unlock(&nforce2_lock); + return error; +} + +static s32 nforce2_access_virt1(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, + union i2c_smbus_data *data) +{ + /* CPU0: channel 1 enabled */ + return nforce2_access_channel(adap, addr, flags, read_write, command, + size, data, 0x02); +} + +static s32 nforce2_access_virt2(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, + union i2c_smbus_data *data) +{ + /* CPU1: channel 2 enabled */ + return nforce2_access_channel(adap, addr, flags, read_write, command, + size, data, 0x04); +} + +static s32 nforce2_access_virt3(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, + union i2c_smbus_data *data) +{ + /* CPU2: channel 3 enabled */ + return nforce2_access_channel(adap, addr, flags, read_write, command, + size, data, 0x08); +} + +static s32 nforce2_access_virt4(struct i2c_adapter *adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, + union i2c_smbus_data *data) +{ + /* CPU3: channel 4 enabled */ + return nforce2_access_channel(adap, addr, flags, read_write, command, + size, data, 0x10); +} + +static int __init nforce2_s4985_init(void) +{ + int i, error; + union i2c_smbus_data ioconfig; + + /* Unregister physical bus */ + if (!nforce2_smbus) + return -ENODEV; + error = i2c_del_adapter(nforce2_smbus); + if (error) { + dev_err(&nforce2_smbus->dev, "Physical bus removal failed\n"); + goto ERROR0; + } + + printk(KERN_INFO "Enabling SMBus multiplexing for Tyan S4985\n"); + /* Define the 5 virtual adapters and algorithms structures */ + s4985_adapter = kzalloc(5 * sizeof(struct i2c_adapter), GFP_KERNEL); + if (!s4985_adapter) { + error = -ENOMEM; + goto ERROR1; + } + s4985_algo = kzalloc(5 * sizeof(struct i2c_algorithm), GFP_KERNEL); + if (!s4985_algo) { + error = -ENOMEM; + goto ERROR2; + } + + /* Fill in the new structures */ + s4985_algo[0] = *(nforce2_smbus->algo); + s4985_algo[0].smbus_xfer = nforce2_access_virt0; + s4985_adapter[0] = *nforce2_smbus; + s4985_adapter[0].algo = s4985_algo; + s4985_adapter[0].dev.parent = nforce2_smbus->dev.parent; + for (i = 1; i < 5; i++) { + s4985_algo[i] = *(nforce2_smbus->algo); + s4985_adapter[i] = *nforce2_smbus; + snprintf(s4985_adapter[i].name, sizeof(s4985_adapter[i].name), + "SMBus nForce2 adapter (CPU%d)", i - 1); + s4985_adapter[i].algo = s4985_algo + i; + s4985_adapter[i].dev.parent = nforce2_smbus->dev.parent; + } + s4985_algo[1].smbus_xfer = nforce2_access_virt1; + s4985_algo[2].smbus_xfer = nforce2_access_virt2; + s4985_algo[3].smbus_xfer = nforce2_access_virt3; + s4985_algo[4].smbus_xfer = nforce2_access_virt4; + + /* Configure the PCA9556 multiplexer */ + ioconfig.byte = 0x00; /* All I/O to output mode */ + error = nforce2_smbus->algo->smbus_xfer(nforce2_smbus, 0x18, 0, + I2C_SMBUS_WRITE, 0x03, + I2C_SMBUS_BYTE_DATA, &ioconfig); + if (error) { + dev_err(&nforce2_smbus->dev, "PCA9556 configuration failed\n"); + error = -EIO; + goto ERROR3; + } + + /* Register virtual adapters */ + for (i = 0; i < 5; i++) { + error = i2c_add_adapter(s4985_adapter + i); + if (error) { + dev_err(&nforce2_smbus->dev, + "Virtual adapter %d registration " + "failed, module not inserted\n", i); + for (i--; i >= 0; i--) + i2c_del_adapter(s4985_adapter + i); + goto ERROR3; + } + } + + return 0; + +ERROR3: + kfree(s4985_algo); + s4985_algo = NULL; +ERROR2: + kfree(s4985_adapter); + s4985_adapter = NULL; +ERROR1: + /* Restore physical bus */ + i2c_add_adapter(nforce2_smbus); +ERROR0: + return error; +} + +static void __exit nforce2_s4985_exit(void) +{ + if (s4985_adapter) { + int i; + + for (i = 0; i < 5; i++) + i2c_del_adapter(s4985_adapter+i); + kfree(s4985_adapter); + s4985_adapter = NULL; + } + kfree(s4985_algo); + s4985_algo = NULL; + + /* Restore physical bus */ + if (i2c_add_adapter(nforce2_smbus)) + dev_err(&nforce2_smbus->dev, "Physical bus restoration " + "failed\n"); +} + +MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); +MODULE_DESCRIPTION("S4985 SMBus multiplexing"); +MODULE_LICENSE("GPL"); + +module_init(nforce2_s4985_init); +module_exit(nforce2_s4985_exit); diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c index 43c9f8df9509..3b19bc41a60b 100644 --- a/drivers/i2c/busses/i2c-nforce2.c +++ b/drivers/i2c/busses/i2c-nforce2.c @@ -51,6 +51,7 @@ #include <linux/i2c.h> #include <linux/delay.h> #include <linux/dmi.h> +#include <linux/acpi.h> #include <asm/io.h> MODULE_LICENSE("GPL"); @@ -124,6 +125,20 @@ static struct dmi_system_id __devinitdata nforce2_dmi_blacklist2[] = { static struct pci_driver nforce2_driver; +/* For multiplexing support, we need a global reference to the 1st + SMBus channel */ +#if defined CONFIG_I2C_NFORCE2_S4985 || defined CONFIG_I2C_NFORCE2_S4985_MODULE +struct i2c_adapter *nforce2_smbus; +EXPORT_SYMBOL_GPL(nforce2_smbus); + +static void nforce2_set_reference(struct i2c_adapter *adap) +{ + nforce2_smbus = adap; +} +#else +static inline void nforce2_set_reference(struct i2c_adapter *adap) { } +#endif + static void nforce2_abort(struct i2c_adapter *adap) { struct nforce2_smbus *smbus = adap->algo_data; @@ -158,16 +173,16 @@ static int nforce2_check_status(struct i2c_adapter *adap) dev_dbg(&adap->dev, "SMBus Timeout!\n"); if (smbus->can_abort) nforce2_abort(adap); - return -1; + return -ETIMEDOUT; } if (!(temp & NVIDIA_SMB_STS_DONE) || (temp & NVIDIA_SMB_STS_STATUS)) { dev_dbg(&adap->dev, "Transaction failed (0x%02x)!\n", temp); - return -1; + return -EIO; } return 0; } -/* Return -1 on error */ +/* Return negative errno on error */ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data) @@ -175,7 +190,7 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr, struct nforce2_smbus *smbus = adap->algo_data; unsigned char protocol, pec; u8 len; - int i; + int i, status; protocol = (read_write == I2C_SMBUS_READ) ? NVIDIA_SMB_PRTCL_READ : NVIDIA_SMB_PRTCL_WRITE; @@ -219,7 +234,7 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr, "Transaction failed " "(requested block size: %d)\n", len); - return -1; + return -EINVAL; } outb_p(len, NVIDIA_SMB_BCNT); for (i = 0; i < I2C_SMBUS_BLOCK_MAX; i++) @@ -231,14 +246,15 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr, default: dev_err(&adap->dev, "Unsupported transaction %d\n", size); - return -1; + return -EOPNOTSUPP; } outb_p((addr & 0x7f) << 1, NVIDIA_SMB_ADDR); outb_p(protocol, NVIDIA_SMB_PRTCL); - if (nforce2_check_status(adap)) - return -1; + status = nforce2_check_status(adap); + if (status) + return status; if (read_write == I2C_SMBUS_WRITE) return 0; @@ -260,7 +276,7 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr, dev_err(&adap->dev, "Transaction failed " "(received block size: 0x%02x)\n", len); - return -1; + return -EPROTO; } for (i = 0; i < len; i++) data->block[i+1] = inb_p(NVIDIA_SMB_DATA + i); @@ -321,21 +337,26 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar, != PCIBIOS_SUCCESSFUL) { dev_err(&dev->dev, "Error reading PCI config for %s\n", name); - return -1; + return -EIO; } smbus->base = iobase & PCI_BASE_ADDRESS_IO_MASK; smbus->size = 64; } + error = acpi_check_region(smbus->base, smbus->size, + nforce2_driver.name); + if (error) + return -1; + if (!request_region(smbus->base, smbus->size, nforce2_driver.name)) { dev_err(&smbus->adapter.dev, "Error requesting region %02x .. %02X for %s\n", smbus->base, smbus->base+smbus->size-1, name); - return -1; + return -EBUSY; } smbus->adapter.owner = THIS_MODULE; smbus->adapter.id = I2C_HW_SMBUS_NFORCE2; - smbus->adapter.class = I2C_CLASS_HWMON; + smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD; smbus->adapter.algo = &smbus_algorithm; smbus->adapter.algo_data = smbus; smbus->adapter.dev.parent = &dev->dev; @@ -346,7 +367,7 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar, if (error) { dev_err(&smbus->adapter.dev, "Failed to register adapter.\n"); release_region(smbus->base, smbus->size); - return -1; + return error; } dev_info(&smbus->adapter.dev, "nForce2 SMBus adapter at %#x\n", smbus->base); return 0; @@ -398,6 +419,7 @@ static int __devinit nforce2_probe(struct pci_dev *dev, const struct pci_device_ return -ENODEV; } + nforce2_set_reference(&smbuses[0].adapter); return 0; } @@ -406,6 +428,7 @@ static void __devexit nforce2_remove(struct pci_dev *dev) { struct nforce2_smbus *smbuses = (void*) pci_get_drvdata(dev); + nforce2_set_reference(NULL); if (smbuses[0].base) { i2c_del_adapter(&smbuses[0].adapter); release_region(smbuses[0].base, smbuses[0].size); diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c index f145692cbb76..e5193bf75483 100644 --- a/drivers/i2c/busses/i2c-ocores.c +++ b/drivers/i2c/busses/i2c-ocores.c @@ -29,6 +29,7 @@ struct ocores_i2c { int pos; int nmsgs; int state; /* see STATE_ */ + int clock_khz; }; /* registers */ @@ -173,8 +174,7 @@ static int ocores_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) return -ETIMEDOUT; } -static void ocores_init(struct ocores_i2c *i2c, - struct ocores_i2c_platform_data *pdata) +static void ocores_init(struct ocores_i2c *i2c) { int prescale; u8 ctrl = oc_getreg(i2c, OCI2C_CONTROL); @@ -182,7 +182,7 @@ static void ocores_init(struct ocores_i2c *i2c, /* make sure the device is disabled */ oc_setreg(i2c, OCI2C_CONTROL, ctrl & ~(OCI2C_CTRL_EN|OCI2C_CTRL_IEN)); - prescale = (pdata->clock_khz / (5*100)) - 1; + prescale = (i2c->clock_khz / (5*100)) - 1; oc_setreg(i2c, OCI2C_PRELOW, prescale & 0xff); oc_setreg(i2c, OCI2C_PREHIGH, prescale >> 8); @@ -205,7 +205,7 @@ static const struct i2c_algorithm ocores_algorithm = { static struct i2c_adapter ocores_adapter = { .owner = THIS_MODULE, .name = "i2c-ocores", - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &ocores_algorithm, }; @@ -248,7 +248,8 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev) } i2c->regstep = pdata->regstep; - ocores_init(i2c, pdata); + i2c->clock_khz = pdata->clock_khz; + ocores_init(i2c); init_waitqueue_head(&i2c->wait); ret = request_irq(res2->start, ocores_isr, 0, pdev->name, i2c); @@ -312,13 +313,40 @@ static int __devexit ocores_i2c_remove(struct platform_device* pdev) return 0; } +#ifdef CONFIG_PM +static int ocores_i2c_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct ocores_i2c *i2c = platform_get_drvdata(pdev); + u8 ctrl = oc_getreg(i2c, OCI2C_CONTROL); + + /* make sure the device is disabled */ + oc_setreg(i2c, OCI2C_CONTROL, ctrl & ~(OCI2C_CTRL_EN|OCI2C_CTRL_IEN)); + + return 0; +} + +static int ocores_i2c_resume(struct platform_device *pdev) +{ + struct ocores_i2c *i2c = platform_get_drvdata(pdev); + + ocores_init(i2c); + + return 0; +} +#else +#define ocores_i2c_suspend NULL +#define ocores_i2c_resume NULL +#endif + /* work with hotplug and coldplug */ MODULE_ALIAS("platform:ocores-i2c"); static struct platform_driver ocores_i2c_driver = { - .probe = ocores_i2c_probe, - .remove = __devexit_p(ocores_i2c_remove), - .driver = { + .probe = ocores_i2c_probe, + .remove = __devexit_p(ocores_i2c_remove), + .suspend = ocores_i2c_suspend, + .resume = ocores_i2c_resume, + .driver = { .owner = THIS_MODULE, .name = "ocores-i2c", }, diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c index 1603c81e39d4..adf0fbb902f0 100644 --- a/drivers/i2c/busses/i2c-pasemi.c +++ b/drivers/i2c/busses/i2c-pasemi.c @@ -365,7 +365,7 @@ static int __devinit pasemi_smb_probe(struct pci_dev *dev, smbus->adapter.owner = THIS_MODULE; snprintf(smbus->adapter.name, sizeof(smbus->adapter.name), "PA Semi SMBus adapter at 0x%lx", smbus->base); - smbus->adapter.class = I2C_CLASS_HWMON; + smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD; smbus->adapter.algo = &smbus_algorithm; smbus->adapter.algo_data = smbus; smbus->adapter.nr = PCI_FUNC(dev->devfn); diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c index 9d75f51e8f0e..6bb15ad0a6b6 100644 --- a/drivers/i2c/busses/i2c-pca-platform.c +++ b/drivers/i2c/busses/i2c-pca-platform.c @@ -163,7 +163,7 @@ static int __devinit i2c_pca_pf_probe(struct platform_device *pdev) i2c->reg_base = ioremap(res->start, res_len(res)); if (!i2c->reg_base) { - ret = -EIO; + ret = -ENOMEM; goto e_remap; } i2c->io_base = res->start; diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c index ac9165968587..eaa9b387543e 100644 --- a/drivers/i2c/busses/i2c-piix4.c +++ b/drivers/i2c/busses/i2c-piix4.c @@ -1,6 +1,4 @@ /* - piix4.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl> and Philip Edelbrock <phil@netroedge.com> @@ -39,16 +37,10 @@ #include <linux/i2c.h> #include <linux/init.h> #include <linux/dmi.h> +#include <linux/acpi.h> #include <asm/io.h> -struct sd { - const unsigned short mfr; - const unsigned short dev; - const unsigned char fn; - const char *name; -}; - /* PIIX4 SMBus address offsets */ #define SMBHSTSTS (0 + piix4_smba) #define SMBHSLVSTS (1 + piix4_smba) @@ -101,8 +93,6 @@ MODULE_PARM_DESC(force_addr, "Forcibly enable the PIIX4 at the given address. " "EXTREMELY DANGEROUS!"); -static int piix4_transaction(void); - static unsigned short piix4_smba; static int srvrworks_csb5_delay; static struct pci_driver piix4_driver; @@ -141,8 +131,6 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev, { unsigned char temp; - dev_info(&PIIX4_dev->dev, "Found %s device\n", pci_name(PIIX4_dev)); - if ((PIIX4_dev->vendor == PCI_VENDOR_ID_SERVERWORKS) && (PIIX4_dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5)) srvrworks_csb5_delay = 1; @@ -172,17 +160,20 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev, pci_read_config_word(PIIX4_dev, SMBBA, &piix4_smba); piix4_smba &= 0xfff0; if(piix4_smba == 0) { - dev_err(&PIIX4_dev->dev, "SMB base address " + dev_err(&PIIX4_dev->dev, "SMBus base address " "uninitialized - upgrade BIOS or use " "force_addr=0xaddr\n"); return -ENODEV; } } + if (acpi_check_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) + return -EBUSY; + if (!request_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) { - dev_err(&PIIX4_dev->dev, "SMB region 0x%x already in use!\n", + dev_err(&PIIX4_dev->dev, "SMBus region 0x%x already in use!\n", piix4_smba); - return -ENODEV; + return -EBUSY; } pci_read_config_byte(PIIX4_dev, SMBHSTCFG, &temp); @@ -228,13 +219,13 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev, "(or code out of date)!\n"); pci_read_config_byte(PIIX4_dev, SMBREV, &temp); - dev_dbg(&PIIX4_dev->dev, "SMBREV = 0x%X\n", temp); - dev_dbg(&PIIX4_dev->dev, "SMBA = 0x%X\n", piix4_smba); + dev_info(&PIIX4_dev->dev, + "SMBus Host Controller at 0x%x, revision %d\n", + piix4_smba, temp); return 0; } -/* Another internally used function */ static int piix4_transaction(void) { int temp; @@ -253,7 +244,7 @@ static int piix4_transaction(void) outb_p(temp, SMBHSTSTS); if ((temp = inb_p(SMBHSTSTS)) != 0x00) { dev_err(&piix4_adapter.dev, "Failed! (%02x)\n", temp); - return -1; + return -EBUSY; } else { dev_dbg(&piix4_adapter.dev, "Successful!\n"); } @@ -275,23 +266,23 @@ static int piix4_transaction(void) /* If the SMBus is still busy, we give up */ if (timeout >= MAX_TIMEOUT) { dev_err(&piix4_adapter.dev, "SMBus Timeout!\n"); - result = -1; + result = -ETIMEDOUT; } if (temp & 0x10) { - result = -1; + result = -EIO; dev_err(&piix4_adapter.dev, "Error: Failed bus transaction\n"); } if (temp & 0x08) { - result = -1; + result = -EIO; dev_dbg(&piix4_adapter.dev, "Bus collision! SMBus may be " "locked until next hard reset. (sorry!)\n"); /* Clock stops and slave is stuck in mid-transmission */ } if (temp & 0x04) { - result = -1; + result = -ENXIO; dev_dbg(&piix4_adapter.dev, "Error: no response!\n"); } @@ -309,31 +300,29 @@ static int piix4_transaction(void) return result; } -/* Return -1 on error. */ +/* Return negative errno on error. */ static s32 piix4_access(struct i2c_adapter * adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data) { int i, len; + int status; switch (size) { - case I2C_SMBUS_PROC_CALL: - dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n"); - return -1; case I2C_SMBUS_QUICK: - outb_p(((addr & 0x7f) << 1) | (read_write & 0x01), + outb_p((addr << 1) | read_write, SMBHSTADD); size = PIIX4_QUICK; break; case I2C_SMBUS_BYTE: - outb_p(((addr & 0x7f) << 1) | (read_write & 0x01), + outb_p((addr << 1) | read_write, SMBHSTADD); if (read_write == I2C_SMBUS_WRITE) outb_p(command, SMBHSTCMD); size = PIIX4_BYTE; break; case I2C_SMBUS_BYTE_DATA: - outb_p(((addr & 0x7f) << 1) | (read_write & 0x01), + outb_p((addr << 1) | read_write, SMBHSTADD); outb_p(command, SMBHSTCMD); if (read_write == I2C_SMBUS_WRITE) @@ -341,7 +330,7 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr, size = PIIX4_BYTE_DATA; break; case I2C_SMBUS_WORD_DATA: - outb_p(((addr & 0x7f) << 1) | (read_write & 0x01), + outb_p((addr << 1) | read_write, SMBHSTADD); outb_p(command, SMBHSTCMD); if (read_write == I2C_SMBUS_WRITE) { @@ -351,15 +340,13 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr, size = PIIX4_WORD_DATA; break; case I2C_SMBUS_BLOCK_DATA: - outb_p(((addr & 0x7f) << 1) | (read_write & 0x01), + outb_p((addr << 1) | read_write, SMBHSTADD); outb_p(command, SMBHSTCMD); if (read_write == I2C_SMBUS_WRITE) { len = data->block[0]; - if (len < 0) - len = 0; - if (len > 32) - len = 32; + if (len == 0 || len > I2C_SMBUS_BLOCK_MAX) + return -EINVAL; outb_p(len, SMBHSTDAT0); i = inb_p(SMBHSTCNT); /* Reset SMBBLKDAT */ for (i = 1; i <= len; i++) @@ -367,12 +354,16 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr, } size = PIIX4_BLOCK_DATA; break; + default: + dev_warn(&adap->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; } outb_p((size & 0x1C) + (ENABLE_INT9 & 1), SMBHSTCNT); - if (piix4_transaction()) /* Error in transaction */ - return -1; + status = piix4_transaction(); + if (status) + return status; if ((read_write == I2C_SMBUS_WRITE) || (size == PIIX4_QUICK)) return 0; @@ -388,6 +379,8 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr, break; case PIIX4_BLOCK_DATA: data->block[0] = inb_p(SMBHSTDAT0); + if (data->block[0] == 0 || data->block[0] > I2C_SMBUS_BLOCK_MAX) + return -EPROTO; i = inb_p(SMBHSTCNT); /* Reset SMBBLKDAT */ for (i = 1; i <= data->block[0]; i++) data->block[i] = inb_p(SMBBLKDAT); @@ -411,7 +404,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter piix4_adapter = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_PIIX4, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, }; diff --git a/drivers/i2c/busses/i2c-pmcmsp.c b/drivers/i2c/busses/i2c-pmcmsp.c index 63b3e2c11cff..dcf2045b5222 100644 --- a/drivers/i2c/busses/i2c-pmcmsp.c +++ b/drivers/i2c/busses/i2c-pmcmsp.c @@ -622,7 +622,7 @@ static struct i2c_algorithm pmcmsptwi_algo = { static struct i2c_adapter pmcmsptwi_adapter = { .owner = THIS_MODULE, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &pmcmsptwi_algo, .name = DRV_NAME, }; diff --git a/drivers/i2c/busses/i2c-prosavage.c b/drivers/i2c/busses/i2c-prosavage.c deleted file mode 100644 index 07c1f1e27df1..000000000000 --- a/drivers/i2c/busses/i2c-prosavage.c +++ /dev/null @@ -1,325 +0,0 @@ -/* - * kernel/busses/i2c-prosavage.c - * - * i2c bus driver for S3/VIA 8365/8375 graphics processor. - * Copyright (c) 2003 Henk Vergonet <henk@god.dyndns.org> - * Based on code written by: - * Frodo Looijaard <frodol@dds.nl>, - * Philip Edelbrock <phil@netroedge.com>, - * Ralph Metzler <rjkm@thp.uni-koeln.de>, and - * Mark D. Studebaker <mdsxyz123@yahoo.com> - * Simon Vogl - * and others - * - * Please read the lm_sensors documentation for details on use. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ -/* 18-05-2003 HVE - created - * 14-06-2003 HVE - adapted for lm_sensors2 - * 17-06-2003 HVE - linux 2.5.xx compatible - * 18-06-2003 HVE - codingstyle - * 21-06-2003 HVE - compatibility lm_sensors2 and linux 2.5.xx - * codingstyle, mmio enabled - * - * This driver interfaces to the I2C bus of the VIA north bridge embedded - * ProSavage4/8 devices. Usefull for gaining access to the TV Encoder chips. - * - * Graphics cores: - * S3/VIA KM266/VT8375 aka ProSavage8 - * S3/VIA KM133/VT8365 aka Savage4 - * - * Two serial busses are implemented: - * SERIAL1 - I2C serial communications interface - * SERIAL2 - DDC2 monitor communications interface - * - * Tested on a FX41 mainboard, see http://www.shuttle.com - * - * - * TODO: - * - integration with prosavage framebuffer device - * (Additional documentation needed :( - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/i2c.h> -#include <linux/i2c-algo-bit.h> -#include <asm/io.h> - -/* - * driver configuration - */ -#define MAX_BUSSES 2 - -struct s_i2c_bus { - void __iomem *mmvga; - int i2c_reg; - int adap_ok; - struct i2c_adapter adap; - struct i2c_algo_bit_data algo; -}; - -struct s_i2c_chip { - void __iomem *mmio; - struct s_i2c_bus i2c_bus[MAX_BUSSES]; -}; - - -/* - * i2c configuration - */ -#define CYCLE_DELAY 10 -#define TIMEOUT (HZ / 2) - - -/* - * S3/VIA 8365/8375 registers - */ -#define VGA_CR_IX 0x3d4 -#define VGA_CR_DATA 0x3d5 - -#define CR_SERIAL1 0xa0 /* I2C serial communications interface */ -#define MM_SERIAL1 0xff20 -#define CR_SERIAL2 0xb1 /* DDC2 monitor communications interface */ - -/* based on vt8365 documentation */ -#define I2C_ENAB 0x10 -#define I2C_SCL_OUT 0x01 -#define I2C_SDA_OUT 0x02 -#define I2C_SCL_IN 0x04 -#define I2C_SDA_IN 0x08 - -#define SET_CR_IX(p, val) writeb((val), (p)->mmvga + VGA_CR_IX) -#define SET_CR_DATA(p, val) writeb((val), (p)->mmvga + VGA_CR_DATA) -#define GET_CR_DATA(p) readb((p)->mmvga + VGA_CR_DATA) - - -/* - * Serial bus line handling - * - * serial communications register as parameter in private data - * - * TODO: locks with other code sections accessing video registers? - */ -static void bit_s3via_setscl(void *bus, int val) -{ - struct s_i2c_bus *p = (struct s_i2c_bus *)bus; - unsigned int r; - - SET_CR_IX(p, p->i2c_reg); - r = GET_CR_DATA(p); - r |= I2C_ENAB; - if (val) { - r |= I2C_SCL_OUT; - } else { - r &= ~I2C_SCL_OUT; - } - SET_CR_DATA(p, r); -} - -static void bit_s3via_setsda(void *bus, int val) -{ - struct s_i2c_bus *p = (struct s_i2c_bus *)bus; - unsigned int r; - - SET_CR_IX(p, p->i2c_reg); - r = GET_CR_DATA(p); - r |= I2C_ENAB; - if (val) { - r |= I2C_SDA_OUT; - } else { - r &= ~I2C_SDA_OUT; - } - SET_CR_DATA(p, r); -} - -static int bit_s3via_getscl(void *bus) -{ - struct s_i2c_bus *p = (struct s_i2c_bus *)bus; - - SET_CR_IX(p, p->i2c_reg); - return (0 != (GET_CR_DATA(p) & I2C_SCL_IN)); -} - -static int bit_s3via_getsda(void *bus) -{ - struct s_i2c_bus *p = (struct s_i2c_bus *)bus; - - SET_CR_IX(p, p->i2c_reg); - return (0 != (GET_CR_DATA(p) & I2C_SDA_IN)); -} - - -/* - * adapter initialisation - */ -static int i2c_register_bus(struct pci_dev *dev, struct s_i2c_bus *p, void __iomem *mmvga, u32 i2c_reg) -{ - int ret; - p->adap.owner = THIS_MODULE; - p->adap.id = I2C_HW_B_S3VIA; - p->adap.algo_data = &p->algo; - p->adap.dev.parent = &dev->dev; - p->algo.setsda = bit_s3via_setsda; - p->algo.setscl = bit_s3via_setscl; - p->algo.getsda = bit_s3via_getsda; - p->algo.getscl = bit_s3via_getscl; - p->algo.udelay = CYCLE_DELAY; - p->algo.timeout = TIMEOUT; - p->algo.data = p; - p->mmvga = mmvga; - p->i2c_reg = i2c_reg; - - ret = i2c_bit_add_bus(&p->adap); - if (ret) { - return ret; - } - - p->adap_ok = 1; - return 0; -} - - -/* - * Cleanup stuff - */ -static void prosavage_remove(struct pci_dev *dev) -{ - struct s_i2c_chip *chip; - int i, ret; - - chip = (struct s_i2c_chip *)pci_get_drvdata(dev); - - if (!chip) { - return; - } - for (i = MAX_BUSSES - 1; i >= 0; i--) { - if (chip->i2c_bus[i].adap_ok == 0) - continue; - - ret = i2c_del_adapter(&chip->i2c_bus[i].adap); - if (ret) { - dev_err(&dev->dev, "%s not removed\n", - chip->i2c_bus[i].adap.name); - } - } - if (chip->mmio) { - iounmap(chip->mmio); - } - kfree(chip); -} - - -/* - * Detect chip and initialize it - */ -static int __devinit prosavage_probe(struct pci_dev *dev, const struct pci_device_id *id) -{ - int ret; - unsigned long base, len; - struct s_i2c_chip *chip; - struct s_i2c_bus *bus; - - pci_set_drvdata(dev, kzalloc(sizeof(struct s_i2c_chip), GFP_KERNEL)); - chip = (struct s_i2c_chip *)pci_get_drvdata(dev); - if (chip == NULL) { - return -ENOMEM; - } - - base = dev->resource[0].start & PCI_BASE_ADDRESS_MEM_MASK; - len = dev->resource[0].end - base + 1; - chip->mmio = ioremap_nocache(base, len); - - if (chip->mmio == NULL) { - dev_err(&dev->dev, "ioremap failed\n"); - prosavage_remove(dev); - return -ENODEV; - } - - - /* - * Chip initialisation - */ - /* Unlock Extended IO Space ??? */ - - - /* - * i2c bus registration - */ - bus = &chip->i2c_bus[0]; - snprintf(bus->adap.name, sizeof(bus->adap.name), - "ProSavage I2C bus at %02x:%02x.%x", - dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); - ret = i2c_register_bus(dev, bus, chip->mmio + 0x8000, CR_SERIAL1); - if (ret) { - goto err_adap; - } - /* - * ddc bus registration - */ - bus = &chip->i2c_bus[1]; - snprintf(bus->adap.name, sizeof(bus->adap.name), - "ProSavage DDC bus at %02x:%02x.%x", - dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); - ret = i2c_register_bus(dev, bus, chip->mmio + 0x8000, CR_SERIAL2); - if (ret) { - goto err_adap; - } - return 0; -err_adap: - dev_err(&dev->dev, "%s failed\n", bus->adap.name); - prosavage_remove(dev); - return ret; -} - - -/* - * Data for PCI driver interface - */ -static struct pci_device_id prosavage_pci_tbl[] = { - { PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_SAVAGE4) }, - { PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_PROSAVAGE8) }, - { 0, }, -}; - -MODULE_DEVICE_TABLE (pci, prosavage_pci_tbl); - -static struct pci_driver prosavage_driver = { - .name = "prosavage_smbus", - .id_table = prosavage_pci_tbl, - .probe = prosavage_probe, - .remove = prosavage_remove, -}; - -static int __init i2c_prosavage_init(void) -{ - return pci_register_driver(&prosavage_driver); -} - -static void __exit i2c_prosavage_exit(void) -{ - pci_unregister_driver(&prosavage_driver); -} - -MODULE_DEVICE_TABLE(pci, prosavage_pci_tbl); -MODULE_AUTHOR("Henk Vergonet"); -MODULE_DESCRIPTION("ProSavage VIA 8365/8375 smbus driver"); -MODULE_LICENSE("GPL"); - -module_init (i2c_prosavage_init); -module_exit (i2c_prosavage_exit); diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index eb69fbadc9cb..78c0fc42bc73 100644 --- a/drivers/i2c/busses/i2c-pxa.c +++ b/drivers/i2c/busses/i2c-pxa.c @@ -1134,5 +1134,5 @@ static void __exit i2c_adap_pxa_exit(void) MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:pxa2xx-i2c"); -module_init(i2c_adap_pxa_init); +subsys_initcall(i2c_adap_pxa_init); module_exit(i2c_adap_pxa_exit); diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 1305ef190fc1..fd7b2308a0b3 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -591,7 +591,7 @@ static struct s3c24xx_i2c s3c24xx_i2c = { .owner = THIS_MODULE, .algo = &s3c24xx_i2c_algorithm, .retries = 2, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, }, }; diff --git a/drivers/i2c/busses/i2c-savage4.c b/drivers/i2c/busses/i2c-savage4.c deleted file mode 100644 index 8adf4abaa035..000000000000 --- a/drivers/i2c/busses/i2c-savage4.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - i2c-savage4.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring - Copyright (C) 1998-2003 The LM Sensors Team - Alexander Wold <awold@bigfoot.com> - Mark D. Studebaker <mdsxyz123@yahoo.com> - - Based on i2c-voodoo3.c. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -/* This interfaces to the I2C bus of the Savage4 to gain access to - the BT869 and possibly other I2C devices. The DDC bus is not - yet supported because its register is not memory-mapped. -*/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/i2c.h> -#include <linux/i2c-algo-bit.h> -#include <asm/io.h> - -/* device IDs */ -#define PCI_CHIP_SAVAGE4 0x8A22 -#define PCI_CHIP_SAVAGE2000 0x9102 - -#define REG 0xff20 /* Serial Port 1 Register */ - -/* bit locations in the register */ -#define I2C_ENAB 0x00000020 -#define I2C_SCL_OUT 0x00000001 -#define I2C_SDA_OUT 0x00000002 -#define I2C_SCL_IN 0x00000008 -#define I2C_SDA_IN 0x00000010 - -/* delays */ -#define CYCLE_DELAY 10 -#define TIMEOUT (HZ / 2) - - -static void __iomem *ioaddr; - -/* The sav GPIO registers don't have individual masks for each bit - so we always have to read before writing. */ - -static void bit_savi2c_setscl(void *data, int val) -{ - unsigned int r; - r = readl(ioaddr + REG); - if(val) - r |= I2C_SCL_OUT; - else - r &= ~I2C_SCL_OUT; - writel(r, ioaddr + REG); - readl(ioaddr + REG); /* flush posted write */ -} - -static void bit_savi2c_setsda(void *data, int val) -{ - unsigned int r; - r = readl(ioaddr + REG); - if(val) - r |= I2C_SDA_OUT; - else - r &= ~I2C_SDA_OUT; - writel(r, ioaddr + REG); - readl(ioaddr + REG); /* flush posted write */ -} - -/* The GPIO pins are open drain, so the pins always remain outputs. - We rely on the i2c-algo-bit routines to set the pins high before - reading the input from other chips. */ - -static int bit_savi2c_getscl(void *data) -{ - return (0 != (readl(ioaddr + REG) & I2C_SCL_IN)); -} - -static int bit_savi2c_getsda(void *data) -{ - return (0 != (readl(ioaddr + REG) & I2C_SDA_IN)); -} - -/* Configures the chip */ - -static int config_s4(struct pci_dev *dev) -{ - unsigned long cadr; - - /* map memory */ - cadr = dev->resource[0].start; - cadr &= PCI_BASE_ADDRESS_MEM_MASK; - ioaddr = ioremap_nocache(cadr, 0x0080000); - if (ioaddr) { - /* writel(0x8160, ioaddr + REG2); */ - writel(0x00000020, ioaddr + REG); - dev_info(&dev->dev, "Using Savage4 at %p\n", ioaddr); - return 0; - } - return -ENODEV; -} - -static struct i2c_algo_bit_data sav_i2c_bit_data = { - .setsda = bit_savi2c_setsda, - .setscl = bit_savi2c_setscl, - .getsda = bit_savi2c_getsda, - .getscl = bit_savi2c_getscl, - .udelay = CYCLE_DELAY, - .timeout = TIMEOUT -}; - -static struct i2c_adapter savage4_i2c_adapter = { - .owner = THIS_MODULE, - .id = I2C_HW_B_SAVAGE, - .name = "I2C Savage4 adapter", - .algo_data = &sav_i2c_bit_data, -}; - -static struct pci_device_id savage4_ids[] __devinitdata = { - { PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4) }, - { PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000) }, - { 0, } -}; - -MODULE_DEVICE_TABLE (pci, savage4_ids); - -static int __devinit savage4_probe(struct pci_dev *dev, const struct pci_device_id *id) -{ - int retval; - - retval = config_s4(dev); - if (retval) - return retval; - - /* set up the sysfs linkage to our parent device */ - savage4_i2c_adapter.dev.parent = &dev->dev; - - return i2c_bit_add_bus(&savage4_i2c_adapter); -} - -static void __devexit savage4_remove(struct pci_dev *dev) -{ - i2c_del_adapter(&savage4_i2c_adapter); - iounmap(ioaddr); -} - -static struct pci_driver savage4_driver = { - .name = "savage4_smbus", - .id_table = savage4_ids, - .probe = savage4_probe, - .remove = __devexit_p(savage4_remove), -}; - -static int __init i2c_savage4_init(void) -{ - return pci_register_driver(&savage4_driver); -} - -static void __exit i2c_savage4_exit(void) -{ - pci_unregister_driver(&savage4_driver); -} - -MODULE_AUTHOR("Alexander Wold <awold@bigfoot.com> " - "and Mark D. Studebaker <mdsxyz123@yahoo.com>"); -MODULE_DESCRIPTION("Savage4 I2C/SMBus driver"); -MODULE_LICENSE("GPL"); - -module_init(i2c_savage4_init); -module_exit(i2c_savage4_exit); diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c index 114634da6c6e..4ddefbf238e9 100644 --- a/drivers/i2c/busses/i2c-sibyte.c +++ b/drivers/i2c/busses/i2c-sibyte.c @@ -143,7 +143,7 @@ static int __init i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed) csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ)); csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL)); - return i2c_add_adapter(i2c_adap); + return i2c_add_numbered_adapter(i2c_adap); } @@ -156,17 +156,19 @@ static struct i2c_adapter sibyte_board_adapter[2] = { { .owner = THIS_MODULE, .id = I2C_HW_SIBYTE, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = NULL, .algo_data = &sibyte_board_data[0], + .nr = 0, .name = "SiByte SMBus 0", }, { .owner = THIS_MODULE, .id = I2C_HW_SIBYTE, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = NULL, .algo_data = &sibyte_board_data[1], + .nr = 1, .name = "SiByte SMBus 1", }, }; diff --git a/drivers/i2c/busses/i2c-sis5595.c b/drivers/i2c/busses/i2c-sis5595.c index 9ca8f9155f95..dfc2d5eb6a68 100644 --- a/drivers/i2c/busses/i2c-sis5595.c +++ b/drivers/i2c/busses/i2c-sis5595.c @@ -1,6 +1,4 @@ /* - sis5595.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and Philip Edelbrock <phil@netroedge.com> @@ -62,6 +60,7 @@ #include <linux/ioport.h> #include <linux/init.h> #include <linux/i2c.h> +#include <linux/acpi.h> #include <asm/io.h> static int blacklist[] = { @@ -174,6 +173,11 @@ static int sis5595_setup(struct pci_dev *SIS5595_dev) /* NB: We grab just the two SMBus registers here, but this may still * interfere with ACPI :-( */ + retval = acpi_check_region(sis5595_base + SMB_INDEX, 2, + sis5595_driver.name); + if (retval) + return retval; + if (!request_region(sis5595_base + SMB_INDEX, 2, sis5595_driver.name)) { dev_err(&SIS5595_dev->dev, "SMBus registers 0x%04x-0x%04x already in use!\n", @@ -236,7 +240,7 @@ static int sis5595_transaction(struct i2c_adapter *adap) sis5595_write(SMB_STS_HI, temp >> 8); if ((temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8)) != 0x00) { dev_dbg(&adap->dev, "Failed! (%02x)\n", temp); - return -1; + return -EBUSY; } else { dev_dbg(&adap->dev, "Successful!\n"); } @@ -254,19 +258,19 @@ static int sis5595_transaction(struct i2c_adapter *adap) /* If the SMBus is still busy, we give up */ if (timeout >= MAX_TIMEOUT) { dev_dbg(&adap->dev, "SMBus Timeout!\n"); - result = -1; + result = -ETIMEDOUT; } if (temp & 0x10) { dev_dbg(&adap->dev, "Error: Failed bus transaction\n"); - result = -1; + result = -ENXIO; } if (temp & 0x20) { dev_err(&adap->dev, "Bus collision! SMBus may be locked until " "next hard reset (or not...)\n"); /* Clock stops and slave is stuck in mid-transmission */ - result = -1; + result = -EIO; } temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8); @@ -282,11 +286,13 @@ static int sis5595_transaction(struct i2c_adapter *adap) return result; } -/* Return -1 on error. */ +/* Return negative errno on error. */ static s32 sis5595_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data *data) { + int status; + switch (size) { case I2C_SMBUS_QUICK: sis5595_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01)); @@ -318,13 +324,14 @@ static s32 sis5595_access(struct i2c_adapter *adap, u16 addr, break; default: dev_warn(&adap->dev, "Unsupported transaction %d\n", size); - return -1; + return -EOPNOTSUPP; } sis5595_write(SMB_CTL_LO, ((size & 0x0E))); - if (sis5595_transaction(adap)) - return -1; + status = sis5595_transaction(adap); + if (status) + return status; if ((size != SIS5595_PROC_CALL) && ((read_write == I2C_SMBUS_WRITE) || (size == SIS5595_QUICK))) @@ -359,7 +366,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter sis5595_adapter = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_SIS5595, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, }; diff --git a/drivers/i2c/busses/i2c-sis630.c b/drivers/i2c/busses/i2c-sis630.c index 3765dd7f450f..e7c4b790da54 100644 --- a/drivers/i2c/busses/i2c-sis630.c +++ b/drivers/i2c/busses/i2c-sis630.c @@ -1,7 +1,4 @@ /* - i2c-sis630.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring - Copyright (c) 2002,2003 Alexander Malysh <amalysh@web.de> This program is free software; you can redistribute it and/or modify @@ -55,6 +52,7 @@ #include <linux/ioport.h> #include <linux/init.h> #include <linux/i2c.h> +#include <linux/acpi.h> #include <asm/io.h> /* SIS630 SMBus registers */ @@ -134,7 +132,7 @@ static int sis630_transaction_start(struct i2c_adapter *adap, int size, u8 *oldc if ((temp = sis630_read(SMB_CNT) & 0x03) != 0x00) { dev_dbg(&adap->dev, "Failed! (%02x)\n", temp); - return -1; + return -EBUSY; } else { dev_dbg(&adap->dev, "Successful!\n"); } @@ -177,17 +175,17 @@ static int sis630_transaction_wait(struct i2c_adapter *adap, int size) /* If the SMBus is still busy, we give up */ if (timeout >= MAX_TIMEOUT) { dev_dbg(&adap->dev, "SMBus Timeout!\n"); - result = -1; + result = -ETIMEDOUT; } if (temp & 0x02) { dev_dbg(&adap->dev, "Error: Failed bus transaction\n"); - result = -1; + result = -ENXIO; } if (temp & 0x04) { dev_err(&adap->dev, "Bus collision!\n"); - result = -1; + result = -EIO; /* TBD: Datasheet say: the software should clear this bit and restart SMBUS operation. @@ -250,8 +248,10 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat if (i==8 || (len<8 && i==len)) { dev_dbg(&adap->dev, "start trans len=%d i=%d\n",len ,i); /* first transaction */ - if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock)) - return -1; + rc = sis630_transaction_start(adap, + SIS630_BLOCK_DATA, &oldclock); + if (rc) + return rc; } else if ((i-1)%8 == 7 || i==len) { dev_dbg(&adap->dev, "trans_wait len=%d i=%d\n",len,i); @@ -264,9 +264,10 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat */ sis630_write(SMB_STS,0x10); } - if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) { + rc = sis630_transaction_wait(adap, + SIS630_BLOCK_DATA); + if (rc) { dev_dbg(&adap->dev, "trans_wait failed\n"); - rc = -1; break; } } @@ -275,13 +276,14 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat else { /* read request */ data->block[0] = len = 0; - if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock)) { - return -1; - } + rc = sis630_transaction_start(adap, + SIS630_BLOCK_DATA, &oldclock); + if (rc) + return rc; do { - if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) { + rc = sis630_transaction_wait(adap, SIS630_BLOCK_DATA); + if (rc) { dev_dbg(&adap->dev, "trans_wait failed\n"); - rc = -1; break; } /* if this first transaction then read byte count */ @@ -311,11 +313,13 @@ static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *dat return rc; } -/* Return -1 on error. */ +/* Return negative errno on error. */ static s32 sis630_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data *data) { + int status; + switch (size) { case I2C_SMBUS_QUICK: sis630_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01)); @@ -350,13 +354,14 @@ static s32 sis630_access(struct i2c_adapter *adap, u16 addr, size = SIS630_BLOCK_DATA; return sis630_block_data(adap, data, read_write); default: - printk("Unsupported I2C size\n"); - return -1; - break; + dev_warn(&adap->dev, "Unsupported transaction %d\n", + size); + return -EOPNOTSUPP; } - if (sis630_transaction(adap, size)) - return -1; + status = sis630_transaction(adap, size); + if (status) + return status; if ((size != SIS630_PCALL) && ((read_write == I2C_SMBUS_WRITE) || (size == SIS630_QUICK))) { @@ -372,9 +377,6 @@ static s32 sis630_access(struct i2c_adapter *adap, u16 addr, case SIS630_WORD_DATA: data->word = sis630_read(SMB_BYTE) + (sis630_read(SMB_BYTE + 1) << 8); break; - default: - return -1; - break; } return 0; @@ -433,6 +435,11 @@ static int sis630_setup(struct pci_dev *sis630_dev) dev_dbg(&sis630_dev->dev, "ACPI base at 0x%04x\n", acpi_base); + retval = acpi_check_region(acpi_base + SMB_STS, SIS630_SMB_IOREGION, + sis630_driver.name); + if (retval) + goto exit; + /* Everything is happy, let's grab the memory and set things up. */ if (!request_region(acpi_base + SMB_STS, SIS630_SMB_IOREGION, sis630_driver.name)) { @@ -458,7 +465,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter sis630_adapter = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_SIS630, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, }; diff --git a/drivers/i2c/busses/i2c-sis96x.c b/drivers/i2c/busses/i2c-sis96x.c index dc235bb8e24d..f1bba6396641 100644 --- a/drivers/i2c/busses/i2c-sis96x.c +++ b/drivers/i2c/busses/i2c-sis96x.c @@ -1,7 +1,4 @@ /* - sis96x.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring - Copyright (c) 2003 Mark M. Hoffman <mhoffman@lightlink.com> This program is free software; you can redistribute it and/or modify @@ -40,6 +37,7 @@ #include <linux/ioport.h> #include <linux/i2c.h> #include <linux/init.h> +#include <linux/acpi.h> #include <asm/io.h> /* base address register in PCI config space */ @@ -111,7 +109,7 @@ static int sis96x_transaction(int size) /* check it again */ if (((temp = sis96x_read(SMB_CNT)) & 0x03) != 0x00) { dev_dbg(&sis96x_adapter.dev, "Failed (0x%02x)\n", temp); - return -1; + return -EBUSY; } else { dev_dbg(&sis96x_adapter.dev, "Successful\n"); } @@ -136,19 +134,19 @@ static int sis96x_transaction(int size) /* If the SMBus is still busy, we give up */ if (timeout >= MAX_TIMEOUT) { dev_dbg(&sis96x_adapter.dev, "SMBus Timeout! (0x%02x)\n", temp); - result = -1; + result = -ETIMEDOUT; } /* device error - probably missing ACK */ if (temp & 0x02) { dev_dbg(&sis96x_adapter.dev, "Failed bus transaction!\n"); - result = -1; + result = -ENXIO; } /* bus collision */ if (temp & 0x04) { dev_dbg(&sis96x_adapter.dev, "Bus collision!\n"); - result = -1; + result = -EIO; } /* Finish up by resetting the bus */ @@ -161,11 +159,12 @@ static int sis96x_transaction(int size) return result; } -/* Return -1 on error. */ +/* Return negative errno on error. */ static s32 sis96x_access(struct i2c_adapter * adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data) { + int status; switch (size) { case I2C_SMBUS_QUICK: @@ -200,20 +199,14 @@ static s32 sis96x_access(struct i2c_adapter * adap, u16 addr, SIS96x_PROC_CALL : SIS96x_WORD_DATA); break; - case I2C_SMBUS_BLOCK_DATA: - /* TO DO: */ - dev_info(&adap->dev, "SMBus block not implemented!\n"); - return -1; - break; - default: - dev_info(&adap->dev, "Unsupported I2C size\n"); - return -1; - break; + dev_warn(&adap->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; } - if (sis96x_transaction(size)) - return -1; + status = sis96x_transaction(size); + if (status) + return status; if ((size != SIS96x_PROC_CALL) && ((read_write == I2C_SMBUS_WRITE) || (size == SIS96x_QUICK))) @@ -249,7 +242,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter sis96x_adapter = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_SIS96X, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, }; @@ -286,6 +279,10 @@ static int __devinit sis96x_probe(struct pci_dev *dev, dev_info(&dev->dev, "SiS96x SMBus base address: 0x%04x\n", sis96x_smbus_base); + retval = acpi_check_resource_conflict(&dev->resource[SIS96x_BAR]); + if (retval) + return retval; + /* Everything is happy, let's grab the memory and set things up. */ if (!request_region(sis96x_smbus_base, SMB_IOSIZE, sis96x_driver.name)) { diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c index d08eeec53913..1b7b2af94036 100644 --- a/drivers/i2c/busses/i2c-stub.c +++ b/drivers/i2c/busses/i2c-stub.c @@ -43,7 +43,7 @@ struct stub_chip { static struct stub_chip *stub_chips; -/* Return -1 on error. */ +/* Return negative errno on error. */ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data) { @@ -120,7 +120,7 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags, default: dev_dbg(&adap->dev, "Unsupported I2C/SMBus command\n"); - ret = -1; + ret = -EOPNOTSUPP; break; } /* switch (size) */ @@ -140,7 +140,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter stub_adapter = { .owner = THIS_MODULE, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, .name = "SMBus stub driver", }; diff --git a/drivers/i2c/busses/i2c-taos-evm.c b/drivers/i2c/busses/i2c-taos-evm.c index de9db49e54d9..224aa12ee7c8 100644 --- a/drivers/i2c/busses/i2c-taos-evm.c +++ b/drivers/i2c/busses/i2c-taos-evm.c @@ -96,9 +96,8 @@ static int taos_smbus_xfer(struct i2c_adapter *adapter, u16 addr, sprintf(p, "$%02X", command); break; default: - dev_dbg(&adapter->dev, "Unsupported transaction size %d\n", - size); - return -EINVAL; + dev_warn(&adapter->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; } /* Send the transaction to the TAOS EVM */ diff --git a/drivers/i2c/busses/i2c-via.c b/drivers/i2c/busses/i2c-via.c index 61716f6b14dc..29cef0433f34 100644 --- a/drivers/i2c/busses/i2c-via.c +++ b/drivers/i2c/busses/i2c-via.c @@ -1,7 +1,4 @@ /* - i2c-via.c - Part of lm_sensors, Linux kernel modules - for hardware monitoring - i2c Support for Via Technologies 82C586B South Bridge Copyright (c) 1998, 1999 Kyösti Mälkki <kmalkki@cc.hut.fi> @@ -87,7 +84,7 @@ static struct i2c_algo_bit_data bit_data = { static struct i2c_adapter vt586b_adapter = { .owner = THIS_MODULE, .id = I2C_HW_B_VIA, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .name = "VIA i2c", .algo_data = &bit_data, }; diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c index 77b13d027f86..862eb352a2d9 100644 --- a/drivers/i2c/busses/i2c-viapro.c +++ b/drivers/i2c/busses/i2c-viapro.c @@ -1,6 +1,4 @@ /* - i2c-viapro.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (c) 1998 - 2002 Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, Kyösti Mälkki <kmalkki@cc.hut.fi>, Mark D. Studebaker <mdsxyz123@yahoo.com> @@ -50,6 +48,7 @@ #include <linux/ioport.h> #include <linux/i2c.h> #include <linux/init.h> +#include <linux/acpi.h> #include <asm/io.h> static struct pci_dev *vt596_pdev; @@ -152,7 +151,7 @@ static int vt596_transaction(u8 size) if ((temp = inb_p(SMBHSTSTS)) & 0x1F) { dev_err(&vt596_adapter.dev, "SMBus reset failed! " "(0x%02x)\n", temp); - return -1; + return -EBUSY; } } @@ -167,24 +166,24 @@ static int vt596_transaction(u8 size) /* If the SMBus is still busy, we give up */ if (timeout >= MAX_TIMEOUT) { - result = -1; + result = -ETIMEDOUT; dev_err(&vt596_adapter.dev, "SMBus timeout!\n"); } if (temp & 0x10) { - result = -1; + result = -EIO; dev_err(&vt596_adapter.dev, "Transaction failed (0x%02x)\n", size); } if (temp & 0x08) { - result = -1; + result = -EIO; dev_err(&vt596_adapter.dev, "SMBus collision!\n"); } if (temp & 0x04) { int read = inb_p(SMBHSTADD) & 0x01; - result = -1; + result = -ENXIO; /* The quick and receive byte commands are used to probe for chips, so errors are expected, and we don't want to frighten the user. */ @@ -202,12 +201,13 @@ static int vt596_transaction(u8 size) return result; } -/* Return -1 on error, 0 on success */ +/* Return negative errno on error, 0 on success */ static s32 vt596_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data *data) { int i; + int status; switch (size) { case I2C_SMBUS_QUICK: @@ -258,8 +258,9 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr, outb_p(((addr & 0x7f) << 1) | read_write, SMBHSTADD); - if (vt596_transaction(size)) /* Error in transaction */ - return -1; + status = vt596_transaction(size); + if (status) + return status; if ((read_write == I2C_SMBUS_WRITE) || (size == VT596_QUICK)) return 0; @@ -285,9 +286,9 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr, return 0; exit_unsupported: - dev_warn(&vt596_adapter.dev, "Unsupported command invoked! (0x%02x)\n", + dev_warn(&vt596_adapter.dev, "Unsupported transaction %d\n", size); - return -1; + return -EOPNOTSUPP; } static u32 vt596_func(struct i2c_adapter *adapter) @@ -309,7 +310,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter vt596_adapter = { .owner = THIS_MODULE, .id = I2C_HW_SMBUS_VIA2, - .class = I2C_CLASS_HWMON, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .algo = &smbus_algorithm, }; @@ -354,6 +355,10 @@ static int __devinit vt596_probe(struct pci_dev *pdev, } found: + error = acpi_check_region(vt596_smba, 8, vt596_driver.name); + if (error) + return error; + if (!request_region(vt596_smba, 8, vt596_driver.name)) { dev_err(&pdev->dev, "SMBus region 0x%x already in use!\n", vt596_smba); diff --git a/drivers/i2c/busses/i2c-voodoo3.c b/drivers/i2c/busses/i2c-voodoo3.c index 88a3447e11e1..1d4ae26ba73d 100644 --- a/drivers/i2c/busses/i2c-voodoo3.c +++ b/drivers/i2c/busses/i2c-voodoo3.c @@ -1,6 +1,4 @@ /* - voodoo3.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, Ralph Metzler <rjkm@thp.uni-koeln.de>, and diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c index 61abe0f33255..ed794b145a11 100644 --- a/drivers/i2c/busses/scx200_acb.c +++ b/drivers/i2c/busses/scx200_acb.c @@ -442,7 +442,7 @@ static __init struct scx200_acb_iface *scx200_create_iface(const char *text, adapter->owner = THIS_MODULE; adapter->id = I2C_HW_SMBUS_SCX200; adapter->algo = &scx200_acb_algorithm; - adapter->class = I2C_CLASS_HWMON; + adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD; adapter->dev.parent = dev; mutex_init(&iface->mutex); diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig index 2da2edfa68ec..6326468d5f0b 100644 --- a/drivers/i2c/chips/Kconfig +++ b/drivers/i2c/chips/Kconfig @@ -26,8 +26,8 @@ config SENSORS_EEPROM will be called eeprom. config SENSORS_PCF8574 - tristate "Philips PCF8574 and PCF8574A" - depends on EXPERIMENTAL + tristate "Philips PCF8574 and PCF8574A (DEPRECATED)" + depends on EXPERIMENTAL && GPIO_PCF857X = "n" default n help If you say yes here you get support for Philips PCF8574 and @@ -36,12 +36,16 @@ config SENSORS_PCF8574 This driver can also be built as a module. If so, the module will be called pcf8574. + This driver is deprecated and will be dropped soon. Use + drivers/gpio/pcf857x.c instead. + These devices are hard to detect and rarely found on mainstream hardware. If unsure, say N. config PCF8575 - tristate "Philips PCF8575" + tristate "Philips PCF8575 (DEPRECATED)" default n + depends on GPIO_PCF857X = "n" help If you say yes here you get support for Philips PCF8575 chip. This chip is a 16-bit I/O expander for the I2C bus. Several other @@ -50,12 +54,15 @@ config PCF8575 This driver can also be built as a module. If so, the module will be called pcf8575. + This driver is deprecated and will be dropped soon. Use + drivers/gpio/pcf857x.c instead. + This device is hard to detect and is rarely found on mainstream hardware. If unsure, say N. config SENSORS_PCA9539 tristate "Philips PCA9539 16-bit I/O port (DEPRECATED)" - depends on EXPERIMENTAL && GPIO_PCA9539 = "n" + depends on EXPERIMENTAL && GPIO_PCA953X = "n" help If you say yes here you get support for the Philips PCA9539 16-bit I/O port. @@ -64,7 +71,7 @@ config SENSORS_PCA9539 will be called pca9539. This driver is deprecated and will be dropped soon. Use - drivers/gpio/pca9539.c instead. + drivers/gpio/pca953x.c instead. config SENSORS_PCF8591 tristate "Philips PCF8591" diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c index 7dee001e5133..fc17c4de7c21 100644 --- a/drivers/i2c/chips/eeprom.c +++ b/drivers/i2c/chips/eeprom.c @@ -1,6 +1,4 @@ /* - eeprom.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and Philip Edelbrock <phil@netroedge.com> Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com> @@ -53,7 +51,6 @@ enum eeprom_nature { /* Each client has this additional data */ struct eeprom_data { - struct i2c_client client; struct mutex update_lock; u8 valid; /* bitfield, bit!=0 if slice is valid */ unsigned long last_updated[8]; /* In jiffies, 8 slices */ @@ -62,23 +59,34 @@ struct eeprom_data { }; -static int eeprom_attach_adapter(struct i2c_adapter *adapter); -static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind); -static int eeprom_detach_client(struct i2c_client *client); +static int eeprom_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int eeprom_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int eeprom_remove(struct i2c_client *client); + +static struct i2c_device_id eeprom_id[] = { + { "eeprom", 0 }, + { } +}; /* This is the driver that will be inserted */ static struct i2c_driver eeprom_driver = { + .class = I2C_CLASS_DDC | I2C_CLASS_SPD, .driver = { .name = "eeprom", }, - .attach_adapter = eeprom_attach_adapter, - .detach_client = eeprom_detach_client, + .probe = eeprom_probe, + .remove = eeprom_remove, + .detect = eeprom_detect, + .id_table = eeprom_id, + .address_data = &addr_data, }; static void eeprom_update_client(struct i2c_client *client, u8 slice) { struct eeprom_data *data = i2c_get_clientdata(client); - int i, j; + int i; mutex_lock(&data->update_lock); @@ -93,15 +101,12 @@ static void eeprom_update_client(struct i2c_client *client, u8 slice) != 32) goto exit; } else { - if (i2c_smbus_write_byte(client, slice << 5)) { - dev_dbg(&client->dev, "eeprom read start has failed!\n"); - goto exit; - } - for (i = slice << 5; i < (slice + 1) << 5; i++) { - j = i2c_smbus_read_byte(client); - if (j < 0) + for (i = slice << 5; i < (slice + 1) << 5; i += 2) { + int word = i2c_smbus_read_word_data(client, i); + if (word < 0) goto exit; - data->data[i] = (u8) j; + data->data[i] = word & 0xff; + data->data[i + 1] = word >> 8; } } data->last_updated[slice] = jiffies; @@ -157,93 +162,85 @@ static struct bin_attribute eeprom_attr = { .read = eeprom_read, }; -static int eeprom_attach_adapter(struct i2c_adapter *adapter) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int eeprom_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - return i2c_probe(adapter, &addr_data, eeprom_detect); + struct i2c_adapter *adapter = client->adapter; + + /* EDID EEPROMs are often 24C00 EEPROMs, which answer to all + addresses 0x50-0x57, but we only care about 0x50. So decline + attaching to addresses >= 0x51 on DDC buses */ + if (!(adapter->class & I2C_CLASS_SPD) && client->addr >= 0x51) + return -ENODEV; + + /* There are four ways we can read the EEPROM data: + (1) I2C block reads (faster, but unsupported by most adapters) + (2) Word reads (128% overhead) + (3) Consecutive byte reads (88% overhead, unsafe) + (4) Regular byte data reads (265% overhead) + The third and fourth methods are not implemented by this driver + because all known adapters support one of the first two. */ + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_WORD_DATA) + && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK)) + return -ENODEV; + + strlcpy(info->type, "eeprom", I2C_NAME_SIZE); + + return 0; } -/* This function is called by i2c_probe */ -static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind) +static int eeprom_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - struct i2c_client *new_client; + struct i2c_adapter *adapter = client->adapter; struct eeprom_data *data; - int err = 0; - - /* There are three ways we can read the EEPROM data: - (1) I2C block reads (faster, but unsupported by most adapters) - (2) Consecutive byte reads (100% overhead) - (3) Regular byte data reads (200% overhead) - The third method is not implemented by this driver because all - known adapters support at least the second. */ - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA - | I2C_FUNC_SMBUS_BYTE)) - goto exit; + int err; if (!(data = kzalloc(sizeof(struct eeprom_data), GFP_KERNEL))) { err = -ENOMEM; goto exit; } - new_client = &data->client; memset(data->data, 0xff, EEPROM_SIZE); - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &eeprom_driver; - new_client->flags = 0; - - /* Fill in the remaining client fields */ - strlcpy(new_client->name, "eeprom", I2C_NAME_SIZE); - data->valid = 0; + i2c_set_clientdata(client, data); mutex_init(&data->update_lock); data->nature = UNKNOWN; - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_kfree; - /* Detect the Vaio nature of EEPROMs. We use the "PCG-" or "VGN-" prefix as the signature. */ - if (address == 0x57) { + if (client->addr == 0x57 + && i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA)) { char name[4]; - name[0] = i2c_smbus_read_byte_data(new_client, 0x80); - name[1] = i2c_smbus_read_byte(new_client); - name[2] = i2c_smbus_read_byte(new_client); - name[3] = i2c_smbus_read_byte(new_client); + name[0] = i2c_smbus_read_byte_data(client, 0x80); + name[1] = i2c_smbus_read_byte_data(client, 0x81); + name[2] = i2c_smbus_read_byte_data(client, 0x82); + name[3] = i2c_smbus_read_byte_data(client, 0x83); if (!memcmp(name, "PCG-", 4) || !memcmp(name, "VGN-", 4)) { - dev_info(&new_client->dev, "Vaio EEPROM detected, " + dev_info(&client->dev, "Vaio EEPROM detected, " "enabling privacy protection\n"); data->nature = VAIO; } } /* create the sysfs eeprom file */ - err = sysfs_create_bin_file(&new_client->dev.kobj, &eeprom_attr); + err = sysfs_create_bin_file(&client->dev.kobj, &eeprom_attr); if (err) - goto exit_detach; + goto exit_kfree; return 0; -exit_detach: - i2c_detach_client(new_client); exit_kfree: kfree(data); exit: return err; } -static int eeprom_detach_client(struct i2c_client *client) +static int eeprom_remove(struct i2c_client *client) { - int err; - sysfs_remove_bin_file(&client->dev.kobj, &eeprom_attr); - - err = i2c_detach_client(client); - if (err) - return err; - kfree(i2c_get_clientdata(client)); return 0; diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c index b1b45dddb17e..d21cb32449e2 100644 --- a/drivers/i2c/chips/isp1301_omap.c +++ b/drivers/i2c/chips/isp1301_omap.c @@ -49,10 +49,9 @@ MODULE_LICENSE("GPL"); struct isp1301 { struct otg_transceiver otg; - struct i2c_client client; + struct i2c_client *client; void (*i2c_release)(struct device *dev); - int irq; int irq_type; u32 last_otg_ctrl; @@ -138,14 +137,6 @@ static inline void notresponding(struct isp1301 *isp) /*-------------------------------------------------------------------------*/ -/* only two addresses possible */ -#define ISP_BASE 0x2c -static unsigned short normal_i2c[] = { - ISP_BASE, ISP_BASE + 1, - I2C_CLIENT_END }; - -I2C_CLIENT_INSMOD; - static struct i2c_driver isp1301_driver; /* smbus apis are used for portability */ @@ -153,25 +144,25 @@ static struct i2c_driver isp1301_driver; static inline u8 isp1301_get_u8(struct isp1301 *isp, u8 reg) { - return i2c_smbus_read_byte_data(&isp->client, reg + 0); + return i2c_smbus_read_byte_data(isp->client, reg + 0); } static inline int isp1301_get_u16(struct isp1301 *isp, u8 reg) { - return i2c_smbus_read_word_data(&isp->client, reg); + return i2c_smbus_read_word_data(isp->client, reg); } static inline int isp1301_set_bits(struct isp1301 *isp, u8 reg, u8 bits) { - return i2c_smbus_write_byte_data(&isp->client, reg + 0, bits); + return i2c_smbus_write_byte_data(isp->client, reg + 0, bits); } static inline int isp1301_clear_bits(struct isp1301 *isp, u8 reg, u8 bits) { - return i2c_smbus_write_byte_data(&isp->client, reg + 1, bits); + return i2c_smbus_write_byte_data(isp->client, reg + 1, bits); } /*-------------------------------------------------------------------------*/ @@ -349,10 +340,10 @@ isp1301_defer_work(struct isp1301 *isp, int work) int status; if (isp && !test_and_set_bit(work, &isp->todo)) { - (void) get_device(&isp->client.dev); + (void) get_device(&isp->client->dev); status = schedule_work(&isp->work); if (!status && !isp->working) - dev_vdbg(&isp->client.dev, + dev_vdbg(&isp->client->dev, "work item %d may be lost\n", work); } } @@ -1107,7 +1098,7 @@ isp1301_work(struct work_struct *work) /* transfer state from otg engine to isp1301 */ if (test_and_clear_bit(WORK_UPDATE_ISP, &isp->todo)) { otg_update_isp(isp); - put_device(&isp->client.dev); + put_device(&isp->client->dev); } #endif /* transfer state from isp1301 to otg engine */ @@ -1115,7 +1106,7 @@ isp1301_work(struct work_struct *work) u8 stat = isp1301_clear_latch(isp); isp_update_otg(isp, stat); - put_device(&isp->client.dev); + put_device(&isp->client->dev); } if (test_and_clear_bit(WORK_HOST_RESUME, &isp->todo)) { @@ -1150,7 +1141,7 @@ isp1301_work(struct work_struct *work) } host_resume(isp); // mdelay(10); - put_device(&isp->client.dev); + put_device(&isp->client->dev); } if (test_and_clear_bit(WORK_TIMER, &isp->todo)) { @@ -1159,15 +1150,15 @@ isp1301_work(struct work_struct *work) if (!stop) mod_timer(&isp->timer, jiffies + TIMER_JIFFIES); #endif - put_device(&isp->client.dev); + put_device(&isp->client->dev); } if (isp->todo) - dev_vdbg(&isp->client.dev, + dev_vdbg(&isp->client->dev, "work done, todo = 0x%lx\n", isp->todo); if (stop) { - dev_dbg(&isp->client.dev, "stop\n"); + dev_dbg(&isp->client->dev, "stop\n"); break; } } while (isp->todo); @@ -1191,7 +1182,7 @@ static void isp1301_release(struct device *dev) { struct isp1301 *isp; - isp = container_of(dev, struct isp1301, client.dev); + isp = device_get_drvdata(dev); /* ugly -- i2c hijacks our memory hook to wait_for_completion() */ if (isp->i2c_release) @@ -1201,15 +1192,15 @@ static void isp1301_release(struct device *dev) static struct isp1301 *the_transceiver; -static int isp1301_detach_client(struct i2c_client *i2c) +static int __exit isp1301_remove(struct i2c_client *i2c) { struct isp1301 *isp; - isp = container_of(i2c, struct isp1301, client); + isp = i2c_get_clientdata(i2c); isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0); isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0); - free_irq(isp->irq, isp); + free_irq(i2c->irq, isp); #ifdef CONFIG_USB_OTG otg_unbind(isp); #endif @@ -1224,7 +1215,7 @@ static int isp1301_detach_client(struct i2c_client *i2c) put_device(&i2c->dev); the_transceiver = 0; - return i2c_detach_client(i2c); + return 0; } /*-------------------------------------------------------------------------*/ @@ -1257,7 +1248,7 @@ static int isp1301_otg_enable(struct isp1301 *isp) isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING, INTR_VBUS_VLD | INTR_SESS_VLD | INTR_ID_GND); - dev_info(&isp->client.dev, "ready for dual-role USB ...\n"); + dev_info(&isp->client->dev, "ready for dual-role USB ...\n"); return 0; } @@ -1282,7 +1273,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host) #ifdef CONFIG_USB_OTG isp->otg.host = host; - dev_dbg(&isp->client.dev, "registered host\n"); + dev_dbg(&isp->client->dev, "registered host\n"); host_suspend(isp); if (isp->otg.gadget) return isp1301_otg_enable(isp); @@ -1297,7 +1288,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host) if (machine_is_omap_h2()) isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0); - dev_info(&isp->client.dev, "A-Host sessions ok\n"); + dev_info(&isp->client->dev, "A-Host sessions ok\n"); isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING, INTR_ID_GND); isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING, @@ -1315,7 +1306,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host) return 0; #else - dev_dbg(&isp->client.dev, "host sessions not allowed\n"); + dev_dbg(&isp->client->dev, "host sessions not allowed\n"); return -EINVAL; #endif @@ -1341,7 +1332,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget) #ifdef CONFIG_USB_OTG isp->otg.gadget = gadget; - dev_dbg(&isp->client.dev, "registered gadget\n"); + dev_dbg(&isp->client->dev, "registered gadget\n"); /* gadget driver may be suspended until vbus_connect () */ if (isp->otg.host) return isp1301_otg_enable(isp); @@ -1364,7 +1355,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget) INTR_SESS_VLD); isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING, INTR_VBUS_VLD); - dev_info(&isp->client.dev, "B-Peripheral sessions ok\n"); + dev_info(&isp->client->dev, "B-Peripheral sessions ok\n"); dump_regs(isp, __func__); /* If this has a Mini-AB connector, this mode is highly @@ -1377,7 +1368,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget) return 0; #else - dev_dbg(&isp->client.dev, "peripheral sessions not allowed\n"); + dev_dbg(&isp->client->dev, "peripheral sessions not allowed\n"); return -EINVAL; #endif } @@ -1473,12 +1464,10 @@ isp1301_start_hnp(struct otg_transceiver *dev) /*-------------------------------------------------------------------------*/ -/* no error returns, they'd just make bus scanning stop */ -static int isp1301_probe(struct i2c_adapter *bus, int address, int kind) +static int __init isp1301_probe(struct i2c_client *i2c) { int status; struct isp1301 *isp; - struct i2c_client *i2c; if (the_transceiver) return 0; @@ -1492,37 +1481,19 @@ static int isp1301_probe(struct i2c_adapter *bus, int address, int kind) isp->timer.function = isp1301_timer; isp->timer.data = (unsigned long) isp; - isp->irq = -1; - isp->client.addr = address; - i2c_set_clientdata(&isp->client, isp); - isp->client.adapter = bus; - isp->client.driver = &isp1301_driver; - strlcpy(isp->client.name, DRIVER_NAME, I2C_NAME_SIZE); - i2c = &isp->client; - - /* if this is a true probe, verify the chip ... */ - if (kind < 0) { - status = isp1301_get_u16(isp, ISP1301_VENDOR_ID); - if (status != I2C_VENDOR_ID_PHILIPS) { - dev_dbg(&bus->dev, "addr %d not philips id: %d\n", - address, status); - goto fail1; - } - status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID); - if (status != I2C_PRODUCT_ID_PHILIPS_1301) { - dev_dbg(&bus->dev, "%d not isp1301, %d\n", - address, status); - goto fail1; - } - } + i2c_set_clientdata(i2c, isp); + isp->client = i2c; - status = i2c_attach_client(i2c); - if (status < 0) { - dev_dbg(&bus->dev, "can't attach %s to device %d, err %d\n", - DRIVER_NAME, address, status); -fail1: - kfree(isp); - return 0; + /* verify the chip (shouldn't be necesary) */ + status = isp1301_get_u16(isp, ISP1301_VENDOR_ID); + if (status != I2C_VENDOR_ID_PHILIPS) { + dev_dbg(&i2c->dev, "not philips id: %d\n", status); + goto fail; + } + status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID); + if (status != I2C_PRODUCT_ID_PHILIPS_1301) { + dev_dbg(&i2c->dev, "not isp1301, %d\n", status); + goto fail; } isp->i2c_release = i2c->dev.release; i2c->dev.release = isp1301_release; @@ -1551,7 +1522,7 @@ fail1: status = otg_bind(isp); if (status < 0) { dev_dbg(&i2c->dev, "can't bind OTG\n"); - goto fail2; + goto fail; } #endif @@ -1564,26 +1535,21 @@ fail1: /* IRQ wired at M14 */ omap_cfg_reg(M14_1510_GPIO2); - isp->irq = OMAP_GPIO_IRQ(2); if (gpio_request(2, "isp1301") == 0) gpio_direction_input(2); isp->irq_type = IRQF_TRIGGER_FALLING; } isp->irq_type |= IRQF_SAMPLE_RANDOM; - status = request_irq(isp->irq, isp1301_irq, + status = request_irq(i2c->irq, isp1301_irq, isp->irq_type, DRIVER_NAME, isp); if (status < 0) { dev_dbg(&i2c->dev, "can't get IRQ %d, err %d\n", - isp->irq, status); -#ifdef CONFIG_USB_OTG -fail2: -#endif - i2c_detach_client(i2c); - goto fail1; + i2c->irq, status); + goto fail; } - isp->otg.dev = &isp->client.dev; + isp->otg.dev = &i2c->dev; isp->otg.label = DRIVER_NAME; isp->otg.set_host = isp1301_set_host, @@ -1614,22 +1580,25 @@ fail2: status); return 0; -} -static int isp1301_scan_bus(struct i2c_adapter *bus) -{ - if (!i2c_check_functionality(bus, I2C_FUNC_SMBUS_BYTE_DATA - | I2C_FUNC_SMBUS_READ_WORD_DATA)) - return -EINVAL; - return i2c_probe(bus, &addr_data, isp1301_probe); +fail: + kfree(isp); + return -ENODEV; } +static struct i2c_device_id isp1301_id[] = { + { "isp1301_omap", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, isp1301_id); + static struct i2c_driver isp1301_driver = { .driver = { .name = "isp1301_omap", }, - .attach_adapter = isp1301_scan_bus, - .detach_client = isp1301_detach_client, + .probe = isp1301_probe, + .remove = __exit_p(isp1301_remove), + .id_table = isp1301_id, }; /*-------------------------------------------------------------------------*/ diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c index cf507b3f60f3..d8dd3649f8a4 100644 --- a/drivers/i2c/chips/max6875.c +++ b/drivers/i2c/chips/max6875.c @@ -53,7 +53,7 @@ I2C_CLIENT_INSMOD_1(max6875); /* Each client has this additional data */ struct max6875_data { - struct i2c_client client; + struct i2c_client *fake_client; struct mutex update_lock; u32 valid; @@ -61,17 +61,27 @@ struct max6875_data { unsigned long last_updated[USER_EEPROM_SLICES]; }; -static int max6875_attach_adapter(struct i2c_adapter *adapter); -static int max6875_detect(struct i2c_adapter *adapter, int address, int kind); -static int max6875_detach_client(struct i2c_client *client); +static int max6875_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int max6875_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int max6875_remove(struct i2c_client *client); + +static struct i2c_device_id max6875_id[] = { + { "max6875", 0 }, + { } +}; /* This is the driver that will be inserted */ static struct i2c_driver max6875_driver = { .driver = { .name = "max6875", }, - .attach_adapter = max6875_attach_adapter, - .detach_client = max6875_detach_client, + .probe = max6875_probe, + .remove = max6875_remove, + .id_table = max6875_id, + .detect = max6875_detect, + .address_data = &addr_data, }; static void max6875_update_slice(struct i2c_client *client, int slice) @@ -159,95 +169,67 @@ static struct bin_attribute user_eeprom_attr = { .read = max6875_read, }; -static int max6875_attach_adapter(struct i2c_adapter *adapter) -{ - return i2c_probe(adapter, &addr_data, max6875_detect); -} - -/* This function is called by i2c_probe */ -static int max6875_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int max6875_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - struct i2c_client *real_client; - struct i2c_client *fake_client; - struct max6875_data *data; - int err = 0; + struct i2c_adapter *adapter = client->adapter; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_BYTE_DATA | I2C_FUNC_SMBUS_READ_BYTE)) - return 0; + return -ENODEV; /* Only check even addresses */ - if (address & 1) - return 0; + if (client->addr & 1) + return -ENODEV; + + strlcpy(info->type, "max6875", I2C_NAME_SIZE); + + return 0; +} + +static int max6875_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct max6875_data *data; + int err; if (!(data = kzalloc(sizeof(struct max6875_data), GFP_KERNEL))) return -ENOMEM; /* A fake client is created on the odd address */ - if (!(fake_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) { + data->fake_client = i2c_new_dummy(client->adapter, client->addr + 1); + if (!data->fake_client) { err = -ENOMEM; - goto exit_kfree1; + goto exit_kfree; } /* Init real i2c_client */ - real_client = &data->client; - i2c_set_clientdata(real_client, data); - real_client->addr = address; - real_client->adapter = adapter; - real_client->driver = &max6875_driver; - real_client->flags = 0; - strlcpy(real_client->name, "max6875", I2C_NAME_SIZE); + i2c_set_clientdata(client, data); mutex_init(&data->update_lock); - /* Init fake client data */ - i2c_set_clientdata(fake_client, NULL); - fake_client->addr = address | 1; - fake_client->adapter = adapter; - fake_client->driver = &max6875_driver; - fake_client->flags = 0; - strlcpy(fake_client->name, "max6875 subclient", I2C_NAME_SIZE); - - if ((err = i2c_attach_client(real_client)) != 0) - goto exit_kfree2; - - if ((err = i2c_attach_client(fake_client)) != 0) - goto exit_detach1; - - err = sysfs_create_bin_file(&real_client->dev.kobj, &user_eeprom_attr); + err = sysfs_create_bin_file(&client->dev.kobj, &user_eeprom_attr); if (err) - goto exit_detach2; + goto exit_remove_fake; return 0; -exit_detach2: - i2c_detach_client(fake_client); -exit_detach1: - i2c_detach_client(real_client); -exit_kfree2: - kfree(fake_client); -exit_kfree1: +exit_remove_fake: + i2c_unregister_device(data->fake_client); +exit_kfree: kfree(data); return err; } -/* Will be called for both the real client and the fake client */ -static int max6875_detach_client(struct i2c_client *client) +static int max6875_remove(struct i2c_client *client) { - int err; struct max6875_data *data = i2c_get_clientdata(client); - /* data is NULL for the fake client */ - if (data) - sysfs_remove_bin_file(&client->dev.kobj, &user_eeprom_attr); + i2c_unregister_device(data->fake_client); - err = i2c_detach_client(client); - if (err) - return err; + sysfs_remove_bin_file(&client->dev.kobj, &user_eeprom_attr); + kfree(data); - if (data) /* real client */ - kfree(data); - else /* fake client */ - kfree(client); return 0; } diff --git a/drivers/i2c/chips/pca9539.c b/drivers/i2c/chips/pca9539.c index f43c4e79b55e..5e46036cf664 100644 --- a/drivers/i2c/chips/pca9539.c +++ b/drivers/i2c/chips/pca9539.c @@ -14,8 +14,8 @@ #include <linux/i2c.h> #include <linux/hwmon-sysfs.h> -/* Addresses to scan */ -static unsigned short normal_i2c[] = {0x74, 0x75, 0x76, 0x77, I2C_CLIENT_END}; +/* Addresses to scan: none, device is not autodetected */ +static const unsigned short normal_i2c[] = { I2C_CLIENT_END }; /* Insmod parameters */ I2C_CLIENT_INSMOD_1(pca9539); @@ -32,21 +32,27 @@ enum pca9539_cmd PCA9539_DIRECTION_1 = 7, }; -static int pca9539_attach_adapter(struct i2c_adapter *adapter); -static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind); -static int pca9539_detach_client(struct i2c_client *client); +static int pca9539_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int pca9539_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int pca9539_remove(struct i2c_client *client); + +static struct i2c_device_id pca9539_id[] = { + { "pca9539", 0 }, + { } +}; /* This is the driver that will be inserted */ static struct i2c_driver pca9539_driver = { .driver = { .name = "pca9539", }, - .attach_adapter = pca9539_attach_adapter, - .detach_client = pca9539_detach_client, -}; - -struct pca9539_data { - struct i2c_client client; + .probe = pca9539_probe, + .remove = pca9539_remove, + .id_table = pca9539_id, + .detect = pca9539_detect, + .address_data = &addr_data, }; /* following are the sysfs callback functions */ @@ -105,75 +111,31 @@ static struct attribute_group pca9539_defattr_group = { .attrs = pca9539_attributes, }; -static int pca9539_attach_adapter(struct i2c_adapter *adapter) -{ - return i2c_probe(adapter, &addr_data, pca9539_detect); -} - -/* This function is called by i2c_probe */ -static int pca9539_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int pca9539_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - struct i2c_client *new_client; - struct pca9539_data *data; - int err = 0; + struct i2c_adapter *adapter = client->adapter; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - goto exit; - - /* OK. For now, we presume we have a valid client. We now create the - client structure, even though we cannot fill it completely yet. */ - if (!(data = kzalloc(sizeof(struct pca9539_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &pca9539_driver; - new_client->flags = 0; - - if (kind < 0) { - /* Detection: the pca9539 only has 8 registers (0-7). - A read of 7 should succeed, but a read of 8 should fail. */ - if ((i2c_smbus_read_byte_data(new_client, 7) < 0) || - (i2c_smbus_read_byte_data(new_client, 8) >= 0)) - goto exit_kfree; - } - - strlcpy(new_client->name, "pca9539", I2C_NAME_SIZE); - - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_kfree; + return -ENODEV; - /* Register sysfs hooks */ - err = sysfs_create_group(&new_client->dev.kobj, - &pca9539_defattr_group); - if (err) - goto exit_detach; + strlcpy(info->type, "pca9539", I2C_NAME_SIZE); return 0; - -exit_detach: - i2c_detach_client(new_client); -exit_kfree: - kfree(data); -exit: - return err; } -static int pca9539_detach_client(struct i2c_client *client) +static int pca9539_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - int err; + /* Register sysfs hooks */ + return sysfs_create_group(&client->dev.kobj, + &pca9539_defattr_group); +} +static int pca9539_remove(struct i2c_client *client) +{ sysfs_remove_group(&client->dev.kobj, &pca9539_defattr_group); - - if ((err = i2c_detach_client(client))) - return err; - - kfree(i2c_get_clientdata(client)); return 0; } diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c index e5b31329b56e..efbe53c826a3 100644 --- a/drivers/i2c/chips/pcf8574.c +++ b/drivers/i2c/chips/pcf8574.c @@ -1,6 +1,4 @@ /* - pcf8574.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (c) 2000 Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, Dan Eaton <dan.eaton@rocketlogix.com> @@ -40,35 +38,40 @@ #include <linux/slab.h> #include <linux/i2c.h> -/* Addresses to scan */ -static const unsigned short normal_i2c[] = { - 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, - 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, - I2C_CLIENT_END -}; +/* Addresses to scan: none, device can't be detected */ +static const unsigned short normal_i2c[] = { I2C_CLIENT_END }; /* Insmod parameters */ I2C_CLIENT_INSMOD_2(pcf8574, pcf8574a); /* Each client has this additional data */ struct pcf8574_data { - struct i2c_client client; - int write; /* Remember last written value */ }; -static int pcf8574_attach_adapter(struct i2c_adapter *adapter); -static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind); -static int pcf8574_detach_client(struct i2c_client *client); +static int pcf8574_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int pcf8574_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int pcf8574_remove(struct i2c_client *client); static void pcf8574_init_client(struct i2c_client *client); +static struct i2c_device_id pcf8574_id[] = { + { "pcf8574", 0 }, + { "pcf8574a", 0 }, + { } +}; + /* This is the driver that will be inserted */ static struct i2c_driver pcf8574_driver = { .driver = { .name = "pcf8574", }, - .attach_adapter = pcf8574_attach_adapter, - .detach_client = pcf8574_detach_client, + .probe = pcf8574_probe, + .remove = pcf8574_remove, + .id_table = pcf8574_id, + .detect = pcf8574_detect, + .address_data = &addr_data, }; /* following are the sysfs callback functions */ @@ -121,42 +124,22 @@ static const struct attribute_group pcf8574_attr_group = { * Real code */ -static int pcf8574_attach_adapter(struct i2c_adapter *adapter) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int pcf8574_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - return i2c_probe(adapter, &addr_data, pcf8574_detect); -} - -/* This function is called by i2c_probe */ -static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind) -{ - struct i2c_client *new_client; - struct pcf8574_data *data; - int err = 0; - const char *client_name = ""; + struct i2c_adapter *adapter = client->adapter; + const char *client_name; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) - goto exit; - - /* OK. For now, we presume we have a valid client. We now create the - client structure, even though we cannot fill it completely yet. */ - if (!(data = kzalloc(sizeof(struct pcf8574_data), GFP_KERNEL))) { - err = -ENOMEM; - goto exit; - } - - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &pcf8574_driver; - new_client->flags = 0; + return -ENODEV; /* Now, we would do the remaining detection. But the PCF8574 is plainly impossible to detect! Stupid chip. */ /* Determine the chip type */ if (kind <= 0) { - if (address >= 0x38 && address <= 0x3f) + if (client->addr >= 0x38 && client->addr <= 0x3f) kind = pcf8574a; else kind = pcf8574; @@ -166,40 +149,43 @@ static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind) client_name = "pcf8574a"; else client_name = "pcf8574"; + strlcpy(info->type, client_name, I2C_NAME_SIZE); - /* Fill in the remaining client fields and put it into the global list */ - strlcpy(new_client->name, client_name, I2C_NAME_SIZE); + return 0; +} + +static int pcf8574_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct pcf8574_data *data; + int err; + + data = kzalloc(sizeof(struct pcf8574_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(client, data); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; - /* Initialize the PCF8574 chip */ - pcf8574_init_client(new_client); + pcf8574_init_client(client); /* Register sysfs hooks */ - err = sysfs_create_group(&new_client->dev.kobj, &pcf8574_attr_group); + err = sysfs_create_group(&client->dev.kobj, &pcf8574_attr_group); if (err) - goto exit_detach; + goto exit_free; return 0; - exit_detach: - i2c_detach_client(new_client); exit_free: kfree(data); exit: return err; } -static int pcf8574_detach_client(struct i2c_client *client) +static int pcf8574_remove(struct i2c_client *client) { - int err; - sysfs_remove_group(&client->dev.kobj, &pcf8574_attr_group); - - if ((err = i2c_detach_client(client))) - return err; - kfree(i2c_get_clientdata(client)); return 0; } diff --git a/drivers/i2c/chips/pcf8575.c b/drivers/i2c/chips/pcf8575.c index 3ea08ac0bfa3..4555415b8bda 100644 --- a/drivers/i2c/chips/pcf8575.c +++ b/drivers/i2c/chips/pcf8575.c @@ -32,11 +32,8 @@ #include <linux/slab.h> /* kzalloc() */ #include <linux/sysfs.h> /* sysfs_create_group() */ -/* Addresses to scan */ -static const unsigned short normal_i2c[] = { - 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, - I2C_CLIENT_END -}; +/* Addresses to scan: none, device can't be detected */ +static const unsigned short normal_i2c[] = { I2C_CLIENT_END }; /* Insmod parameters */ I2C_CLIENT_INSMOD; @@ -44,13 +41,19 @@ I2C_CLIENT_INSMOD; /* Each client has this additional data */ struct pcf8575_data { - struct i2c_client client; int write; /* last written value, or error code */ }; -static int pcf8575_attach_adapter(struct i2c_adapter *adapter); -static int pcf8575_detect(struct i2c_adapter *adapter, int address, int kind); -static int pcf8575_detach_client(struct i2c_client *client); +static int pcf8575_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int pcf8575_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int pcf8575_remove(struct i2c_client *client); + +static struct i2c_device_id pcf8575_id[] = { + { "pcf8575", 0 }, + { } +}; /* This is the driver that will be inserted */ static struct i2c_driver pcf8575_driver = { @@ -58,8 +61,11 @@ static struct i2c_driver pcf8575_driver = { .owner = THIS_MODULE, .name = "pcf8575", }, - .attach_adapter = pcf8575_attach_adapter, - .detach_client = pcf8575_detach_client, + .probe = pcf8575_probe, + .remove = pcf8575_remove, + .id_table = pcf8575_id, + .detect = pcf8575_detect, + .address_data = &addr_data, }; /* following are the sysfs callback functions */ @@ -126,71 +132,55 @@ static const struct attribute_group pcf8575_attr_group = { * Real code */ -static int pcf8575_attach_adapter(struct i2c_adapter *adapter) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int pcf8575_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - return i2c_probe(adapter, &addr_data, pcf8575_detect); + struct i2c_adapter *adapter = client->adapter; + + if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) + return -ENODEV; + + /* This is the place to detect whether the chip at the specified + address really is a PCF8575 chip. However, there is no method known + to detect whether an I2C chip is a PCF8575 or any other I2C chip. */ + + strlcpy(info->type, "pcf8575", I2C_NAME_SIZE); + + return 0; } -/* This function is called by i2c_probe */ -static int pcf8575_detect(struct i2c_adapter *adapter, int address, int kind) +static int pcf8575_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - struct i2c_client *client; struct pcf8575_data *data; - int err = 0; - - if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) - goto exit; + int err; - /* OK. For now, we presume we have a valid client. We now create the - client structure, even though we cannot fill it completely yet. */ data = kzalloc(sizeof(struct pcf8575_data), GFP_KERNEL); if (!data) { err = -ENOMEM; goto exit; } - client = &data->client; i2c_set_clientdata(client, data); - client->addr = address; - client->adapter = adapter; - client->driver = &pcf8575_driver; - strlcpy(client->name, "pcf8575", I2C_NAME_SIZE); data->write = -EAGAIN; - /* This is the place to detect whether the chip at the specified - address really is a PCF8575 chip. However, there is no method known - to detect whether an I2C chip is a PCF8575 or any other I2C chip. */ - - /* Tell the I2C layer a new client has arrived */ - err = i2c_attach_client(client); - if (err) - goto exit_free; - /* Register sysfs hooks */ err = sysfs_create_group(&client->dev.kobj, &pcf8575_attr_group); if (err) - goto exit_detach; + goto exit_free; return 0; -exit_detach: - i2c_detach_client(client); exit_free: kfree(data); exit: return err; } -static int pcf8575_detach_client(struct i2c_client *client) +static int pcf8575_remove(struct i2c_client *client) { - int err; - sysfs_remove_group(&client->dev.kobj, &pcf8575_attr_group); - - err = i2c_detach_client(client); - if (err) - return err; - kfree(i2c_get_clientdata(client)); return 0; } diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c index 66c7c3bb9429..df9eb164f893 100644 --- a/drivers/i2c/chips/pcf8591.c +++ b/drivers/i2c/chips/pcf8591.c @@ -1,6 +1,4 @@ /* - pcf8591.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring Copyright (C) 2001-2004 Aurelien Jarno <aurelien@aurel32.net> Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with the help of Jean Delvare <khali@linux-fr.org> @@ -74,26 +72,37 @@ MODULE_PARM_DESC(input_mode, #define REG_TO_SIGNED(reg) (((reg) & 0x80)?((reg) - 256):(reg)) struct pcf8591_data { - struct i2c_client client; struct mutex update_lock; u8 control; u8 aout; }; -static int pcf8591_attach_adapter(struct i2c_adapter *adapter); -static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind); -static int pcf8591_detach_client(struct i2c_client *client); +static int pcf8591_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int pcf8591_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int pcf8591_remove(struct i2c_client *client); static void pcf8591_init_client(struct i2c_client *client); static int pcf8591_read_channel(struct device *dev, int channel); +static struct i2c_device_id pcf8591_id[] = { + { "pcf8591", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, pcf8591_id); + /* This is the driver that will be inserted */ static struct i2c_driver pcf8591_driver = { + .class = I2C_CLASS_HWMON, /* Nearest choice */ .driver = { .name = "pcf8591", }, - .attach_adapter = pcf8591_attach_adapter, - .detach_client = pcf8591_detach_client, + .probe = pcf8591_probe, + .remove = pcf8591_remove, + .id_table = pcf8591_id, + .detect = pcf8591_detect, + .address_data = &addr_data, }; /* following are the sysfs callback functions */ @@ -182,70 +191,57 @@ static const struct attribute_group pcf8591_attr_group_opt = { /* * Real code */ -static int pcf8591_attach_adapter(struct i2c_adapter *adapter) -{ - return i2c_probe(adapter, &addr_data, pcf8591_detect); -} -/* This function is called by i2c_probe */ -static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind) +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int pcf8591_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - struct i2c_client *new_client; - struct pcf8591_data *data; - int err = 0; + struct i2c_adapter *adapter = client->adapter; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) - goto exit; + return -ENODEV; + + /* Now, we would do the remaining detection. But the PCF8591 is plainly + impossible to detect! Stupid chip. */ + + strlcpy(info->type, "pcf8591", I2C_NAME_SIZE); + + return 0; +} + +static int pcf8591_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct pcf8591_data *data; + int err; - /* OK. For now, we presume we have a valid client. We now create the - client structure, even though we cannot fill it completely yet. */ if (!(data = kzalloc(sizeof(struct pcf8591_data), GFP_KERNEL))) { err = -ENOMEM; goto exit; } - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &pcf8591_driver; - new_client->flags = 0; - - /* Now, we would do the remaining detection. But the PCF8591 is plainly - impossible to detect! Stupid chip. */ - - /* Determine the chip type - only one kind supported! */ - if (kind <= 0) - kind = pcf8591; - - /* Fill in the remaining client fields and put it into the global - list */ - strlcpy(new_client->name, "pcf8591", I2C_NAME_SIZE); + i2c_set_clientdata(client, data); mutex_init(&data->update_lock); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_kfree; - /* Initialize the PCF8591 chip */ - pcf8591_init_client(new_client); + pcf8591_init_client(client); /* Register sysfs hooks */ - err = sysfs_create_group(&new_client->dev.kobj, &pcf8591_attr_group); + err = sysfs_create_group(&client->dev.kobj, &pcf8591_attr_group); if (err) - goto exit_detach; + goto exit_kfree; /* Register input2 if not in "two differential inputs" mode */ if (input_mode != 3) { - if ((err = device_create_file(&new_client->dev, + if ((err = device_create_file(&client->dev, &dev_attr_in2_input))) goto exit_sysfs_remove; } /* Register input3 only in "four single ended inputs" mode */ if (input_mode == 0) { - if ((err = device_create_file(&new_client->dev, + if ((err = device_create_file(&client->dev, &dev_attr_in3_input))) goto exit_sysfs_remove; } @@ -253,26 +249,18 @@ static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind) return 0; exit_sysfs_remove: - sysfs_remove_group(&new_client->dev.kobj, &pcf8591_attr_group_opt); - sysfs_remove_group(&new_client->dev.kobj, &pcf8591_attr_group); -exit_detach: - i2c_detach_client(new_client); + sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt); + sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group); exit_kfree: kfree(data); exit: return err; } -static int pcf8591_detach_client(struct i2c_client *client) +static int pcf8591_remove(struct i2c_client *client) { - int err; - sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt); sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group); - - if ((err = i2c_detach_client(client))) - return err; - kfree(i2c_get_clientdata(client)); return 0; } diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index d0175f4f8fc6..f0216b74fc7b 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -29,13 +29,11 @@ #include <linux/i2c.h> #include <linux/init.h> #include <linux/idr.h> -#include <linux/seq_file.h> #include <linux/platform_device.h> #include <linux/mutex.h> #include <linux/completion.h> #include <linux/hardirq.h> #include <linux/irqflags.h> -#include <linux/semaphore.h> #include <asm/uaccess.h> #include "i2c-core.h" @@ -44,7 +42,9 @@ static DEFINE_MUTEX(core_lock); static DEFINE_IDR(i2c_adapter_idr); -#define is_newstyle_driver(d) ((d)->probe || (d)->remove) +#define is_newstyle_driver(d) ((d)->probe || (d)->remove || (d)->detect) + +static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver); /* ------------------------------------------------------------------------- */ @@ -103,19 +103,14 @@ static int i2c_device_probe(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct i2c_driver *driver = to_i2c_driver(dev->driver); - const struct i2c_device_id *id; int status; - if (!driver->probe) + if (!driver->probe || !driver->id_table) return -ENODEV; client->driver = driver; dev_dbg(dev, "probe\n"); - if (driver->id_table) - id = i2c_match_id(driver->id_table, client); - else - id = NULL; - status = driver->probe(client, id); + status = driver->probe(client, i2c_match_id(driver->id_table, client)); if (status) client->driver = NULL; return status; @@ -416,6 +411,10 @@ static int i2c_do_add_adapter(struct device_driver *d, void *data) struct i2c_driver *driver = to_i2c_driver(d); struct i2c_adapter *adap = data; + /* Detect supported devices on that bus, and instantiate them */ + i2c_detect(adap, driver); + + /* Let legacy drivers scan this bus for matching devices */ if (driver->attach_adapter) { /* We ignore the return code; if it fails, too bad */ driver->attach_adapter(adap); @@ -455,7 +454,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap) if (adap->nr < __i2c_first_dynamic_bus_num) i2c_scan_static_board_info(adap); - /* let legacy drivers scan this bus for matching devices */ + /* Notify drivers */ dummy = bus_for_each_drv(&i2c_bus_type, NULL, adap, i2c_do_add_adapter); @@ -561,8 +560,19 @@ static int i2c_do_del_adapter(struct device_driver *d, void *data) { struct i2c_driver *driver = to_i2c_driver(d); struct i2c_adapter *adapter = data; + struct i2c_client *client, *_n; int res; + /* Remove the devices we created ourselves */ + list_for_each_entry_safe(client, _n, &driver->clients, detected) { + if (client->adapter == adapter) { + dev_dbg(&adapter->dev, "Removing %s at 0x%x\n", + client->name, client->addr); + list_del(&client->detected); + i2c_unregister_device(client); + } + } + if (!driver->detach_adapter) return 0; res = driver->detach_adapter(adapter); @@ -582,8 +592,7 @@ static int i2c_do_del_adapter(struct device_driver *d, void *data) */ int i2c_del_adapter(struct i2c_adapter *adap) { - struct list_head *item, *_n; - struct i2c_client *client; + struct i2c_client *client, *_n; int res = 0; mutex_lock(&core_lock); @@ -604,10 +613,9 @@ int i2c_del_adapter(struct i2c_adapter *adap) /* detach any active clients. This must be done first, because * it can fail; in which case we give up. */ - list_for_each_safe(item, _n, &adap->clients) { + list_for_each_entry_safe(client, _n, &adap->clients, list) { struct i2c_driver *driver; - client = list_entry(item, struct i2c_client, list); driver = client->driver; /* new style, follow standard driver model */ @@ -646,6 +654,20 @@ EXPORT_SYMBOL(i2c_del_adapter); /* ------------------------------------------------------------------------- */ +static int __attach_adapter(struct device *dev, void *data) +{ + struct i2c_adapter *adapter = to_i2c_adapter(dev); + struct i2c_driver *driver = data; + + i2c_detect(adapter, driver); + + /* Legacy drivers scan i2c busses directly */ + if (driver->attach_adapter) + driver->attach_adapter(adapter); + + return 0; +} + /* * An i2c_driver is used with one or more i2c_client (device) nodes to access * i2c slave chips, on a bus instance associated with some i2c_adapter. There @@ -685,72 +707,72 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver) pr_debug("i2c-core: driver [%s] registered\n", driver->driver.name); - /* legacy drivers scan i2c busses directly */ - if (driver->attach_adapter) { - struct i2c_adapter *adapter; - - down(&i2c_adapter_class.sem); - list_for_each_entry(adapter, &i2c_adapter_class.devices, - dev.node) { - driver->attach_adapter(adapter); - } - up(&i2c_adapter_class.sem); - } + INIT_LIST_HEAD(&driver->clients); + /* Walk the adapters that are already present */ + class_for_each_device(&i2c_adapter_class, NULL, driver, + __attach_adapter); mutex_unlock(&core_lock); return 0; } EXPORT_SYMBOL(i2c_register_driver); -/** - * i2c_del_driver - unregister I2C driver - * @driver: the driver being unregistered - * Context: can sleep - */ -void i2c_del_driver(struct i2c_driver *driver) +static int __detach_adapter(struct device *dev, void *data) { - struct list_head *item2, *_n; - struct i2c_client *client; - struct i2c_adapter *adap; + struct i2c_adapter *adapter = to_i2c_adapter(dev); + struct i2c_driver *driver = data; + struct i2c_client *client, *_n; - mutex_lock(&core_lock); + list_for_each_entry_safe(client, _n, &driver->clients, detected) { + dev_dbg(&adapter->dev, "Removing %s at 0x%x\n", + client->name, client->addr); + list_del(&client->detected); + i2c_unregister_device(client); + } - /* new-style driver? */ if (is_newstyle_driver(driver)) - goto unregister; + return 0; /* Have a look at each adapter, if clients of this driver are still * attached. If so, detach them to be able to kill the driver * afterwards. */ - down(&i2c_adapter_class.sem); - list_for_each_entry(adap, &i2c_adapter_class.devices, dev.node) { - if (driver->detach_adapter) { - if (driver->detach_adapter(adap)) { - dev_err(&adap->dev, "detach_adapter failed " - "for driver [%s]\n", - driver->driver.name); - } - } else { - list_for_each_safe(item2, _n, &adap->clients) { - client = list_entry(item2, struct i2c_client, list); - if (client->driver != driver) - continue; - dev_dbg(&adap->dev, "detaching client [%s] " - "at 0x%02x\n", client->name, - client->addr); - if (driver->detach_client(client)) { - dev_err(&adap->dev, "detach_client " - "failed for client [%s] at " - "0x%02x\n", client->name, - client->addr); - } - } + if (driver->detach_adapter) { + if (driver->detach_adapter(adapter)) + dev_err(&adapter->dev, + "detach_adapter failed for driver [%s]\n", + driver->driver.name); + } else { + struct i2c_client *client, *_n; + + list_for_each_entry_safe(client, _n, &adapter->clients, list) { + if (client->driver != driver) + continue; + dev_dbg(&adapter->dev, + "detaching client [%s] at 0x%02x\n", + client->name, client->addr); + if (driver->detach_client(client)) + dev_err(&adapter->dev, "detach_client " + "failed for client [%s] at 0x%02x\n", + client->name, client->addr); } } - up(&i2c_adapter_class.sem); - unregister: + return 0; +} + +/** + * i2c_del_driver - unregister I2C driver + * @driver: the driver being unregistered + * Context: can sleep + */ +void i2c_del_driver(struct i2c_driver *driver) +{ + mutex_lock(&core_lock); + + class_for_each_device(&i2c_adapter_class, NULL, driver, + __detach_adapter); + driver_unregister(&driver->driver); pr_debug("i2c-core: driver [%s] unregistered\n", driver->driver.name); @@ -863,8 +885,9 @@ EXPORT_SYMBOL(i2c_detach_client); */ struct i2c_client *i2c_use_client(struct i2c_client *client) { - get_device(&client->dev); - return client; + if (client && get_device(&client->dev)) + return client; + return NULL; } EXPORT_SYMBOL(i2c_use_client); @@ -876,7 +899,8 @@ EXPORT_SYMBOL(i2c_use_client); */ void i2c_release_client(struct i2c_client *client) { - put_device(&client->dev); + if (client) + put_device(&client->dev); } EXPORT_SYMBOL(i2c_release_client); @@ -942,10 +966,39 @@ module_exit(i2c_exit); * ---------------------------------------------------- */ +/** + * i2c_transfer - execute a single or combined I2C message + * @adap: Handle to I2C bus + * @msgs: One or more messages to execute before STOP is issued to + * terminate the operation; each message begins with a START. + * @num: Number of messages to be executed. + * + * Returns negative errno, else the number of messages executed. + * + * Note that there is no requirement that each message be sent to + * the same slave address, although that is the most common model. + */ int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num) { int ret; + /* REVISIT the fault reporting model here is weak: + * + * - When we get an error after receiving N bytes from a slave, + * there is no way to report "N". + * + * - When we get a NAK after transmitting N bytes to a slave, + * there is no way to report "N" ... or to let the master + * continue executing the rest of this combined message, if + * that's the appropriate response. + * + * - When for example "num" is two and we successfully complete + * the first message but get an error part way through the + * second, it's unclear whether that should be reported as + * one (discarding status on the second message) or errno + * (discarding status on the first one). + */ + if (adap->algo->master_xfer) { #ifdef DEBUG for (ret = 0; ret < num; ret++) { @@ -971,11 +1024,19 @@ int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num) return ret; } else { dev_dbg(&adap->dev, "I2C level transfers not supported\n"); - return -ENOSYS; + return -EOPNOTSUPP; } } EXPORT_SYMBOL(i2c_transfer); +/** + * i2c_master_send - issue a single I2C message in master transmit mode + * @client: Handle to slave device + * @buf: Data that will be written to the slave + * @count: How many bytes to write + * + * Returns negative errno, or else the number of bytes written. + */ int i2c_master_send(struct i2c_client *client,const char *buf ,int count) { int ret; @@ -995,6 +1056,14 @@ int i2c_master_send(struct i2c_client *client,const char *buf ,int count) } EXPORT_SYMBOL(i2c_master_send); +/** + * i2c_master_recv - issue a single I2C message in master receive mode + * @client: Handle to slave device + * @buf: Where to store data read from slave + * @count: How many bytes to read + * + * Returns negative errno, or else the number of bytes read. + */ int i2c_master_recv(struct i2c_client *client, char *buf ,int count) { struct i2c_adapter *adap=client->adapter; @@ -1103,7 +1172,7 @@ int i2c_probe(struct i2c_adapter *adapter, dev_warn(&adapter->dev, "SMBus Quick command not supported, " "can't probe for chips\n"); - return -1; + return -EOPNOTSUPP; } /* Probe entries are done second, and are not affected by ignore @@ -1157,6 +1226,178 @@ int i2c_probe(struct i2c_adapter *adapter, } EXPORT_SYMBOL(i2c_probe); +/* Separate detection function for new-style drivers */ +static int i2c_detect_address(struct i2c_client *temp_client, int kind, + struct i2c_driver *driver) +{ + struct i2c_board_info info; + struct i2c_adapter *adapter = temp_client->adapter; + int addr = temp_client->addr; + int err; + + /* Make sure the address is valid */ + if (addr < 0x03 || addr > 0x77) { + dev_warn(&adapter->dev, "Invalid probe address 0x%02x\n", + addr); + return -EINVAL; + } + + /* Skip if already in use */ + if (i2c_check_addr(adapter, addr)) + return 0; + + /* Make sure there is something at this address, unless forced */ + if (kind < 0) { + if (i2c_smbus_xfer(adapter, addr, 0, 0, 0, + I2C_SMBUS_QUICK, NULL) < 0) + return 0; + + /* prevent 24RF08 corruption */ + if ((addr & ~0x0f) == 0x50) + i2c_smbus_xfer(adapter, addr, 0, 0, 0, + I2C_SMBUS_QUICK, NULL); + } + + /* Finally call the custom detection function */ + memset(&info, 0, sizeof(struct i2c_board_info)); + info.addr = addr; + err = driver->detect(temp_client, kind, &info); + if (err) { + /* -ENODEV is returned if the detection fails. We catch it + here as this isn't an error. */ + return err == -ENODEV ? 0 : err; + } + + /* Consistency check */ + if (info.type[0] == '\0') { + dev_err(&adapter->dev, "Detection function returned " + "inconsistent data for 0x%x\n", addr); + } else { + struct i2c_client *client; + + /* Detection succeeded, instantiate the device */ + dev_dbg(&adapter->dev, "Creating %s at 0x%02x\n", + info.type, info.addr); + client = i2c_new_device(adapter, &info); + if (client) + list_add_tail(&client->detected, &driver->clients); + else + dev_err(&adapter->dev, "Failed creating %s at 0x%02x\n", + info.type, info.addr); + } + return 0; +} + +static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver) +{ + const struct i2c_client_address_data *address_data; + struct i2c_client *temp_client; + int i, err = 0; + int adap_id = i2c_adapter_id(adapter); + + address_data = driver->address_data; + if (!driver->detect || !address_data) + return 0; + + /* Set up a temporary client to help detect callback */ + temp_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); + if (!temp_client) + return -ENOMEM; + temp_client->adapter = adapter; + + /* Force entries are done first, and are not affected by ignore + entries */ + if (address_data->forces) { + const unsigned short * const *forces = address_data->forces; + int kind; + + for (kind = 0; forces[kind]; kind++) { + for (i = 0; forces[kind][i] != I2C_CLIENT_END; + i += 2) { + if (forces[kind][i] == adap_id + || forces[kind][i] == ANY_I2C_BUS) { + dev_dbg(&adapter->dev, "found force " + "parameter for adapter %d, " + "addr 0x%02x, kind %d\n", + adap_id, forces[kind][i + 1], + kind); + temp_client->addr = forces[kind][i + 1]; + err = i2c_detect_address(temp_client, + kind, driver); + if (err) + goto exit_free; + } + } + } + } + + /* Stop here if we can't use SMBUS_QUICK */ + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) { + if (address_data->probe[0] == I2C_CLIENT_END + && address_data->normal_i2c[0] == I2C_CLIENT_END) + goto exit_free; + + dev_warn(&adapter->dev, "SMBus Quick command not supported, " + "can't probe for chips\n"); + err = -EOPNOTSUPP; + goto exit_free; + } + + /* Stop here if the classes do not match */ + if (!(adapter->class & driver->class)) + goto exit_free; + + /* Probe entries are done second, and are not affected by ignore + entries either */ + for (i = 0; address_data->probe[i] != I2C_CLIENT_END; i += 2) { + if (address_data->probe[i] == adap_id + || address_data->probe[i] == ANY_I2C_BUS) { + dev_dbg(&adapter->dev, "found probe parameter for " + "adapter %d, addr 0x%02x\n", adap_id, + address_data->probe[i + 1]); + temp_client->addr = address_data->probe[i + 1]; + err = i2c_detect_address(temp_client, -1, driver); + if (err) + goto exit_free; + } + } + + /* Normal entries are done last, unless shadowed by an ignore entry */ + for (i = 0; address_data->normal_i2c[i] != I2C_CLIENT_END; i += 1) { + int j, ignore; + + ignore = 0; + for (j = 0; address_data->ignore[j] != I2C_CLIENT_END; + j += 2) { + if ((address_data->ignore[j] == adap_id || + address_data->ignore[j] == ANY_I2C_BUS) + && address_data->ignore[j + 1] + == address_data->normal_i2c[i]) { + dev_dbg(&adapter->dev, "found ignore " + "parameter for adapter %d, " + "addr 0x%02x\n", adap_id, + address_data->ignore[j + 1]); + ignore = 1; + break; + } + } + if (ignore) + continue; + + dev_dbg(&adapter->dev, "found normal entry for adapter %d, " + "addr 0x%02x\n", adap_id, + address_data->normal_i2c[i]); + temp_client->addr = address_data->normal_i2c[i]; + err = i2c_detect_address(temp_client, -1, driver); + if (err) + goto exit_free; + } + + exit_free: + kfree(temp_client); + return err; +} + struct i2c_client * i2c_new_probed_device(struct i2c_adapter *adap, struct i2c_board_info *info, @@ -1295,29 +1536,38 @@ static int i2c_smbus_check_pec(u8 cpec, struct i2c_msg *msg) if (rpec != cpec) { pr_debug("i2c-core: Bad PEC 0x%02x vs. 0x%02x\n", rpec, cpec); - return -1; + return -EBADMSG; } return 0; } -s32 i2c_smbus_write_quick(struct i2c_client *client, u8 value) -{ - return i2c_smbus_xfer(client->adapter,client->addr,client->flags, - value,0,I2C_SMBUS_QUICK,NULL); -} -EXPORT_SYMBOL(i2c_smbus_write_quick); - +/** + * i2c_smbus_read_byte - SMBus "receive byte" protocol + * @client: Handle to slave device + * + * This executes the SMBus "receive byte" protocol, returning negative errno + * else the byte received from the device. + */ s32 i2c_smbus_read_byte(struct i2c_client *client) { union i2c_smbus_data data; - if (i2c_smbus_xfer(client->adapter,client->addr,client->flags, - I2C_SMBUS_READ,0,I2C_SMBUS_BYTE, &data)) - return -1; - else - return data.byte; + int status; + + status = i2c_smbus_xfer(client->adapter, client->addr, client->flags, + I2C_SMBUS_READ, 0, + I2C_SMBUS_BYTE, &data); + return (status < 0) ? status : data.byte; } EXPORT_SYMBOL(i2c_smbus_read_byte); +/** + * i2c_smbus_write_byte - SMBus "send byte" protocol + * @client: Handle to slave device + * @value: Byte to be sent + * + * This executes the SMBus "send byte" protocol, returning negative errno + * else zero on success. + */ s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value) { return i2c_smbus_xfer(client->adapter,client->addr,client->flags, @@ -1325,17 +1575,35 @@ s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value) } EXPORT_SYMBOL(i2c_smbus_write_byte); +/** + * i2c_smbus_read_byte_data - SMBus "read byte" protocol + * @client: Handle to slave device + * @command: Byte interpreted by slave + * + * This executes the SMBus "read byte" protocol, returning negative errno + * else a data byte received from the device. + */ s32 i2c_smbus_read_byte_data(struct i2c_client *client, u8 command) { union i2c_smbus_data data; - if (i2c_smbus_xfer(client->adapter,client->addr,client->flags, - I2C_SMBUS_READ,command, I2C_SMBUS_BYTE_DATA,&data)) - return -1; - else - return data.byte; + int status; + + status = i2c_smbus_xfer(client->adapter, client->addr, client->flags, + I2C_SMBUS_READ, command, + I2C_SMBUS_BYTE_DATA, &data); + return (status < 0) ? status : data.byte; } EXPORT_SYMBOL(i2c_smbus_read_byte_data); +/** + * i2c_smbus_write_byte_data - SMBus "write byte" protocol + * @client: Handle to slave device + * @command: Byte interpreted by slave + * @value: Byte being written + * + * This executes the SMBus "write byte" protocol, returning negative errno + * else zero on success. + */ s32 i2c_smbus_write_byte_data(struct i2c_client *client, u8 command, u8 value) { union i2c_smbus_data data; @@ -1346,17 +1614,35 @@ s32 i2c_smbus_write_byte_data(struct i2c_client *client, u8 command, u8 value) } EXPORT_SYMBOL(i2c_smbus_write_byte_data); +/** + * i2c_smbus_read_word_data - SMBus "read word" protocol + * @client: Handle to slave device + * @command: Byte interpreted by slave + * + * This executes the SMBus "read word" protocol, returning negative errno + * else a 16-bit unsigned "word" received from the device. + */ s32 i2c_smbus_read_word_data(struct i2c_client *client, u8 command) { union i2c_smbus_data data; - if (i2c_smbus_xfer(client->adapter,client->addr,client->flags, - I2C_SMBUS_READ,command, I2C_SMBUS_WORD_DATA, &data)) - return -1; - else - return data.word; + int status; + + status = i2c_smbus_xfer(client->adapter, client->addr, client->flags, + I2C_SMBUS_READ, command, + I2C_SMBUS_WORD_DATA, &data); + return (status < 0) ? status : data.word; } EXPORT_SYMBOL(i2c_smbus_read_word_data); +/** + * i2c_smbus_write_word_data - SMBus "write word" protocol + * @client: Handle to slave device + * @command: Byte interpreted by slave + * @value: 16-bit "word" being written + * + * This executes the SMBus "write word" protocol, returning negative errno + * else zero on success. + */ s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value) { union i2c_smbus_data data; @@ -1368,15 +1654,14 @@ s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value) EXPORT_SYMBOL(i2c_smbus_write_word_data); /** - * i2c_smbus_read_block_data - SMBus block read request + * i2c_smbus_read_block_data - SMBus "block read" protocol * @client: Handle to slave device - * @command: Command byte issued to let the slave know what data should - * be returned + * @command: Byte interpreted by slave * @values: Byte array into which data will be read; big enough to hold * the data returned by the slave. SMBus allows at most 32 bytes. * - * Returns the number of bytes read in the slave's response, else a - * negative number to indicate some kind of error. + * This executes the SMBus "block read" protocol, returning negative errno + * else the number of data bytes in the slave's response. * * Note that using this function requires that the client's adapter support * the I2C_FUNC_SMBUS_READ_BLOCK_DATA functionality. Not all adapter drivers @@ -1387,17 +1672,29 @@ s32 i2c_smbus_read_block_data(struct i2c_client *client, u8 command, u8 *values) { union i2c_smbus_data data; + int status; - if (i2c_smbus_xfer(client->adapter, client->addr, client->flags, - I2C_SMBUS_READ, command, - I2C_SMBUS_BLOCK_DATA, &data)) - return -1; + status = i2c_smbus_xfer(client->adapter, client->addr, client->flags, + I2C_SMBUS_READ, command, + I2C_SMBUS_BLOCK_DATA, &data); + if (status) + return status; memcpy(values, &data.block[1], data.block[0]); return data.block[0]; } EXPORT_SYMBOL(i2c_smbus_read_block_data); +/** + * i2c_smbus_write_block_data - SMBus "block write" protocol + * @client: Handle to slave device + * @command: Byte interpreted by slave + * @length: Size of data block; SMBus allows at most 32 bytes + * @values: Byte array which will be written. + * + * This executes the SMBus "block write" protocol, returning negative errno + * else zero on success. + */ s32 i2c_smbus_write_block_data(struct i2c_client *client, u8 command, u8 length, const u8 *values) { @@ -1418,14 +1715,16 @@ s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client, u8 command, u8 length, u8 *values) { union i2c_smbus_data data; + int status; if (length > I2C_SMBUS_BLOCK_MAX) length = I2C_SMBUS_BLOCK_MAX; data.block[0] = length; - if (i2c_smbus_xfer(client->adapter,client->addr,client->flags, - I2C_SMBUS_READ,command, - I2C_SMBUS_I2C_BLOCK_DATA,&data)) - return -1; + status = i2c_smbus_xfer(client->adapter, client->addr, client->flags, + I2C_SMBUS_READ, command, + I2C_SMBUS_I2C_BLOCK_DATA, &data); + if (status < 0) + return status; memcpy(values, &data.block[1], data.block[0]); return data.block[0]; @@ -1466,6 +1765,7 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr, }; int i; u8 partial_pec = 0; + int status; msgbuf0[0] = command; switch(size) { @@ -1515,10 +1815,10 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr, } else { msg[0].len = data->block[0] + 2; if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 2) { - dev_err(&adapter->dev, "smbus_access called with " - "invalid block write size (%d)\n", - data->block[0]); - return -1; + dev_err(&adapter->dev, + "Invalid block write size %d\n", + data->block[0]); + return -EINVAL; } for (i = 1; i < msg[0].len; i++) msgbuf0[i] = data->block[i-1]; @@ -1528,10 +1828,10 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr, num = 2; /* Another special case */ read_write = I2C_SMBUS_READ; if (data->block[0] > I2C_SMBUS_BLOCK_MAX) { - dev_err(&adapter->dev, "%s called with invalid " - "block proc call size (%d)\n", __func__, + dev_err(&adapter->dev, + "Invalid block write size %d\n", data->block[0]); - return -1; + return -EINVAL; } msg[0].len = data->block[0] + 2; for (i = 1; i < msg[0].len; i++) @@ -1546,19 +1846,18 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr, } else { msg[0].len = data->block[0] + 1; if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 1) { - dev_err(&adapter->dev, "i2c_smbus_xfer_emulated called with " - "invalid block write size (%d)\n", - data->block[0]); - return -1; + dev_err(&adapter->dev, + "Invalid block write size %d\n", + data->block[0]); + return -EINVAL; } for (i = 1; i <= data->block[0]; i++) msgbuf0[i] = data->block[i]; } break; default: - dev_err(&adapter->dev, "smbus_access called with invalid size (%d)\n", - size); - return -1; + dev_err(&adapter->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; } i = ((flags & I2C_CLIENT_PEC) && size != I2C_SMBUS_QUICK @@ -1576,13 +1875,15 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr, msg[num-1].len++; } - if (i2c_transfer(adapter, msg, num) < 0) - return -1; + status = i2c_transfer(adapter, msg, num); + if (status < 0) + return status; /* Check PEC if last message is a read */ if (i && (msg[num-1].flags & I2C_M_RD)) { - if (i2c_smbus_check_pec(partial_pec, &msg[num-1]) < 0) - return -1; + status = i2c_smbus_check_pec(partial_pec, &msg[num-1]); + if (status < 0) + return status; } if (read_write == I2C_SMBUS_READ) @@ -1610,9 +1911,21 @@ static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr, return 0; } - +/** + * i2c_smbus_xfer - execute SMBus protocol operations + * @adapter: Handle to I2C bus + * @addr: Address of SMBus slave on that bus + * @flags: I2C_CLIENT_* flags (usually zero or I2C_CLIENT_PEC) + * @read_write: I2C_SMBUS_READ or I2C_SMBUS_WRITE + * @command: Byte interpreted by slave, for protocols which use such bytes + * @protocol: SMBus protocol operation to execute, such as I2C_SMBUS_PROC_CALL + * @data: Data to be read or written + * + * This executes an SMBus protocol operation, and returns a negative + * errno code else zero on success. + */ s32 i2c_smbus_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags, - char read_write, u8 command, int size, + char read_write, u8 command, int protocol, union i2c_smbus_data * data) { s32 res; @@ -1622,11 +1935,11 @@ s32 i2c_smbus_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags, if (adapter->algo->smbus_xfer) { mutex_lock(&adapter->bus_lock); res = adapter->algo->smbus_xfer(adapter,addr,flags,read_write, - command,size,data); + command, protocol, data); mutex_unlock(&adapter->bus_lock); } else res = i2c_smbus_xfer_emulated(adapter,addr,flags,read_write, - command,size,data); + command, protocol, data); return res; } diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c index d34c14c81c29..30ef44768818 100644 --- a/drivers/i2c/i2c-dev.c +++ b/drivers/i2c/i2c-dev.c @@ -366,8 +366,7 @@ static noinline int i2cdev_ioctl_smbus(struct i2c_client *client, return res; } -static int i2cdev_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long i2cdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct i2c_client *client = (struct i2c_client *)file->private_data; unsigned long funcs; @@ -487,7 +486,7 @@ static const struct file_operations i2cdev_fops = { .llseek = no_llseek, .read = i2cdev_read, .write = i2cdev_write, - .ioctl = i2cdev_ioctl, + .unlocked_ioctl = i2cdev_ioctl, .open = i2cdev_open, .release = i2cdev_release, }; @@ -512,9 +511,9 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap) return PTR_ERR(i2c_dev); /* register this i2c device with the driver core */ - i2c_dev->dev = device_create(i2c_dev_class, &adap->dev, - MKDEV(I2C_MAJOR, adap->nr), - "i2c-%d", adap->nr); + i2c_dev->dev = device_create_drvdata(i2c_dev_class, &adap->dev, + MKDEV(I2C_MAJOR, adap->nr), + NULL, "i2c-%d", adap->nr); if (IS_ERR(i2c_dev->dev)) { res = PTR_ERR(i2c_dev->dev); goto error; diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 8e07de23d220..25564fa343cc 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -98,6 +98,12 @@ if BLK_DEV_IDE comment "Please see Documentation/ide/ide.txt for help/info on IDE drives" +config IDE_TIMINGS + bool + +config IDE_ATAPI + bool + config BLK_DEV_IDE_SATA bool "Support for SATA (deprecated; conflicts with libata SATA driver)" default n @@ -201,6 +207,7 @@ config BLK_DEV_IDECD_VERBOSE_ERRORS config BLK_DEV_IDETAPE tristate "Include IDE/ATAPI TAPE support" + select IDE_ATAPI help If you have an IDE tape drive using the ATAPI protocol, say Y. ATAPI is a newer protocol used by IDE tape and CD-ROM drives, @@ -223,6 +230,7 @@ config BLK_DEV_IDETAPE config BLK_DEV_IDEFLOPPY tristate "Include IDE/ATAPI FLOPPY support" + select IDE_ATAPI ---help--- If you have an IDE floppy drive which uses the ATAPI protocol, answer Y. ATAPI is a newer protocol used by IDE CD-ROM/tape/floppy @@ -246,6 +254,7 @@ config BLK_DEV_IDEFLOPPY config BLK_DEV_IDESCSI tristate "SCSI emulation support" depends on SCSI + select IDE_ATAPI ---help--- WARNING: ide-scsi is no longer needed for cd writing applications! The 2.6 kernel supports direct writing to ide-cd, which eliminates @@ -320,6 +329,7 @@ config BLK_DEV_PLATFORM config BLK_DEV_CMD640 tristate "CMD640 chipset bugfix/support" depends on X86 + select IDE_TIMINGS ---help--- The CMD-Technologies CMD640 IDE chip is used on many common 486 and Pentium motherboards, usually in combination with a "Neptune" or @@ -449,6 +459,7 @@ config BLK_DEV_AEC62XX config BLK_DEV_ALI15X3 tristate "ALI M15x3 chipset support" + select IDE_TIMINGS select BLK_DEV_IDEDMA_PCI help This driver ensures (U)DMA support for ALI 1533, 1543 and 1543C @@ -463,6 +474,7 @@ config BLK_DEV_ALI15X3 config BLK_DEV_AMD74XX tristate "AMD and nVidia IDE support" depends on !ARM + select IDE_TIMINGS select BLK_DEV_IDEDMA_PCI help This driver adds explicit support for AMD-7xx and AMD-8111 chips @@ -483,6 +495,7 @@ config BLK_DEV_ATIIXP config BLK_DEV_CMD64X tristate "CMD64{3|6|8|9} chipset support" + select IDE_TIMINGS select BLK_DEV_IDEDMA_PCI help Say Y here if you have an IDE controller which uses any of these @@ -497,6 +510,7 @@ config BLK_DEV_TRIFLEX config BLK_DEV_CY82C693 tristate "CY82C693 chipset support" + select IDE_TIMINGS select BLK_DEV_IDEDMA_PCI help This driver adds detection and support for the CY82C693 chipset @@ -689,6 +703,7 @@ config BLK_DEV_SIS5513 config BLK_DEV_SL82C105 tristate "Winbond SL82c105 support" depends on (PPC || ARM) + select IDE_TIMINGS select BLK_DEV_IDEDMA_PCI help If you have a Winbond SL82c105 IDE controller, say Y here to enable @@ -719,6 +734,7 @@ config BLK_DEV_TRM290 config BLK_DEV_VIA82CXXX tristate "VIA82CXXX chipset support" + select IDE_TIMINGS select BLK_DEV_IDEDMA_PCI help This driver adds explicit support for VIA BusMastering IDE chips. @@ -745,6 +761,7 @@ endif config BLK_DEV_IDE_PMAC tristate "PowerMac on-board IDE support" depends on PPC_PMAC && IDE=y && BLK_DEV_IDE=y + select IDE_TIMINGS help This driver provides support for the on-board IDE controller on most of the recent Apple Power Macintoshes and PowerBooks. @@ -906,21 +923,12 @@ config BLK_DEV_Q40IDE config BLK_DEV_PALMCHIP_BK3710 tristate "Palmchip bk3710 IDE controller support" depends on ARCH_DAVINCI + select IDE_TIMINGS select BLK_DEV_IDEDMA_SFF help Say Y here if you want to support the onchip IDE controller on the TI DaVinci SoC - -config BLK_DEV_MPC8xx_IDE - tristate "MPC8xx IDE support" - depends on 8xx && (LWMON || IVMS8 || IVML24 || TQM8xxL) && IDE=y && BLK_DEV_IDE=y && !PPC_MERGE - help - This option provides support for IDE on Motorola MPC8xx Systems. - Please see 'Type of MPC8xx IDE interface' for details. - - If unsure, say N. - choice prompt "Type of MPC8xx IDE interface" depends on BLK_DEV_MPC8xx_IDE @@ -968,6 +976,7 @@ config BLK_DEV_4DRIVES config BLK_DEV_ALI14XX tristate "ALI M14xx support" + select IDE_TIMINGS help This driver is enabled at runtime using the "ali14xx.probe" kernel boot parameter. It enables support for the secondary IDE interface @@ -987,6 +996,7 @@ config BLK_DEV_DTC2278 config BLK_DEV_HT6560B tristate "Holtek HT6560B support" + select IDE_TIMINGS help This driver is enabled at runtime using the "ht6560b.probe" kernel boot parameter. It enables support for the secondary IDE interface @@ -996,6 +1006,7 @@ config BLK_DEV_HT6560B config BLK_DEV_QD65XX tristate "QDI QD65xx support" + select IDE_TIMINGS help This driver is enabled at runtime using the "qd65xx.probe" kernel boot parameter. It permits faster I/O speeds to be set. See the diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile index f94b679b611e..8605536ea18f 100644 --- a/drivers/ide/Makefile +++ b/drivers/ide/Makefile @@ -11,9 +11,12 @@ EXTRA_CFLAGS += -Idrivers/ide -ide-core-y += ide.o ide-io.o ide-iops.o ide-lib.o ide-probe.o ide-taskfile.o +ide-core-y += ide.o ide-io.o ide-iops.o ide-lib.o ide-probe.o ide-taskfile.o \ + ide-pio-blacklist.o # core IDE code +ide-core-$(CONFIG_IDE_TIMINGS) += ide-timings.o +ide-core-$(CONFIG_IDE_ATAPI) += ide-atapi.o ide-core-$(CONFIG_BLK_DEV_IDEPCI) += setup-pci.o ide-core-$(CONFIG_BLK_DEV_IDEDMA) += ide-dma.o ide-core-$(CONFIG_IDE_PROC_FS) += ide-proc.o diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c index 061456914ca3..52f58c885783 100644 --- a/drivers/ide/arm/icside.c +++ b/drivers/ide/arm/icside.c @@ -21,6 +21,8 @@ #include <asm/dma.h> #include <asm/ecard.h> +#define DRV_NAME "icside" + #define ICS_IDENT_OFFSET 0x2280 #define ICS_ARCIN_V5_INTRSTAT 0x0000 @@ -68,6 +70,7 @@ struct icside_state { unsigned int enabled; void __iomem *irq_port; void __iomem *ioc_base; + unsigned int sel; unsigned int type; ide_hwif_t *hwif[2]; }; @@ -165,7 +168,8 @@ static const expansioncard_ops_t icside_ops_arcin_v6 = { static void icside_maskproc(ide_drive_t *drive, int mask) { ide_hwif_t *hwif = HWIF(drive); - struct icside_state *state = hwif->hwif_data; + struct expansion_card *ec = ECARD_DEV(hwif->dev); + struct icside_state *state = ecard_get_drvdata(ec); unsigned long flags; local_irq_save(flags); @@ -308,6 +312,7 @@ static int icside_dma_setup(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct expansion_card *ec = ECARD_DEV(hwif->dev); + struct icside_state *state = ecard_get_drvdata(ec); struct request *rq = hwif->hwgroup->rq; unsigned int dma_mode; @@ -331,7 +336,7 @@ static int icside_dma_setup(ide_drive_t *drive) /* * Route the DMA signals to the correct interface. */ - writeb(hwif->select_data, hwif->config_data); + writeb(state->sel | hwif->channel, state->ioc_base); /* * Select the correct timing for this drive. @@ -359,7 +364,8 @@ static void icside_dma_exec_cmd(ide_drive_t *drive, u8 cmd) static int icside_dma_test_irq(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); - struct icside_state *state = hwif->hwif_data; + struct expansion_card *ec = ECARD_DEV(hwif->dev); + struct icside_state *state = ecard_get_drvdata(ec); return readb(state->irq_port + (hwif->channel ? @@ -411,36 +417,24 @@ static int icside_dma_off_init(ide_hwif_t *hwif, const struct ide_port_info *d) return -EOPNOTSUPP; } -static ide_hwif_t * -icside_setup(void __iomem *base, struct cardinfo *info, struct expansion_card *ec) +static void icside_setup_ports(hw_regs_t *hw, void __iomem *base, + struct cardinfo *info, struct expansion_card *ec) { unsigned long port = (unsigned long)base + info->dataoffset; - ide_hwif_t *hwif; - hwif = ide_find_port(); - if (hwif) { - /* - * Ensure we're using MMIO - */ - default_hwif_mmiops(hwif); - - hwif->io_ports.data_addr = port; - hwif->io_ports.error_addr = port + (1 << info->stepping); - hwif->io_ports.nsect_addr = port + (2 << info->stepping); - hwif->io_ports.lbal_addr = port + (3 << info->stepping); - hwif->io_ports.lbam_addr = port + (4 << info->stepping); - hwif->io_ports.lbah_addr = port + (5 << info->stepping); - hwif->io_ports.device_addr = port + (6 << info->stepping); - hwif->io_ports.status_addr = port + (7 << info->stepping); - hwif->io_ports.ctl_addr = - (unsigned long)base + info->ctrloffset; - hwif->irq = ec->irq; - hwif->chipset = ide_acorn; - hwif->gendev.parent = &ec->dev; - hwif->dev = &ec->dev; - } - - return hwif; + hw->io_ports.data_addr = port; + hw->io_ports.error_addr = port + (1 << info->stepping); + hw->io_ports.nsect_addr = port + (2 << info->stepping); + hw->io_ports.lbal_addr = port + (3 << info->stepping); + hw->io_ports.lbam_addr = port + (4 << info->stepping); + hw->io_ports.lbah_addr = port + (5 << info->stepping); + hw->io_ports.device_addr = port + (6 << info->stepping); + hw->io_ports.status_addr = port + (7 << info->stepping); + hw->io_ports.ctl_addr = (unsigned long)base + info->ctrloffset; + + hw->irq = ec->irq; + hw->dev = &ec->dev; + hw->chipset = ide_acorn; } static int __init @@ -449,6 +443,7 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec) ide_hwif_t *hwif; void __iomem *base; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + hw_regs_t hw; base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0); if (!base) @@ -466,12 +461,19 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec) */ icside_irqdisable_arcin_v5(ec, 0); - hwif = icside_setup(base, &icside_cardinfo_v5, ec); + icside_setup_ports(&hw, base, &icside_cardinfo_v5, ec); + + hwif = ide_find_port(); if (!hwif) return -ENODEV; + ide_init_port_hw(hwif, &hw); + default_hwif_mmiops(hwif); + state->hwif[0] = hwif; + ecard_set_drvdata(ec, state); + idx[0] = hwif->index; ide_device_add(idx, NULL); @@ -497,6 +499,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) int ret; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; struct ide_port_info d = icside_v6_port_info; + hw_regs_t hw[2]; ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0); if (!ioc_base) { @@ -525,43 +528,47 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) state->irq_port = easi_base; state->ioc_base = ioc_base; + state->sel = sel; /* * Be on the safe side - disable interrupts */ icside_irqdisable_arcin_v6(ec, 0); + icside_setup_ports(&hw[0], easi_base, &icside_cardinfo_v6_1, ec); + icside_setup_ports(&hw[1], easi_base, &icside_cardinfo_v6_2, ec); + /* * Find and register the interfaces. */ - hwif = icside_setup(easi_base, &icside_cardinfo_v6_1, ec); - mate = icside_setup(easi_base, &icside_cardinfo_v6_2, ec); + hwif = ide_find_port(); + if (hwif == NULL) + return -ENODEV; - if (!hwif || !mate) { - ret = -ENODEV; - goto out; + ide_init_port_hw(hwif, &hw[0]); + default_hwif_mmiops(hwif); + + idx[0] = hwif->index; + + mate = ide_find_port(); + if (mate) { + ide_init_port_hw(mate, &hw[1]); + default_hwif_mmiops(mate); + + idx[1] = mate->index; } state->hwif[0] = hwif; state->hwif[1] = mate; - hwif->hwif_data = state; - hwif->config_data = (unsigned long)ioc_base; - hwif->select_data = sel; - - mate->hwif_data = state; - mate->config_data = (unsigned long)ioc_base; - mate->select_data = sel | 1; + ecard_set_drvdata(ec, state); - if (ec->dma != NO_DMA && !request_dma(ec->dma, hwif->name)) { + if (ec->dma != NO_DMA && !request_dma(ec->dma, DRV_NAME)) { d.init_dma = icside_dma_init; d.port_ops = &icside_v6_port_ops; d.dma_ops = NULL; } - idx[0] = hwif->index; - idx[1] = mate->index; - ide_device_add(idx, &d); return 0; @@ -627,10 +634,8 @@ icside_probe(struct expansion_card *ec, const struct ecard_id *id) break; } - if (ret == 0) { - ecard_set_drvdata(ec, state); + if (ret == 0) goto out; - } kfree(state); release: diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index cc24803fadff..3dd69da11c40 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -74,8 +74,6 @@ struct palm_bk3710_udmatiming { #define BK3710_IORDYTMP 0x78 #define BK3710_IORDYTMS 0x7C -#include "../ide-timing.h" - static long ide_palm_clk; static const struct palm_bk3710_udmatiming palm_bk3710_udmatimings[6] = { @@ -404,10 +402,8 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) i = hwif->index; - ide_init_port_data(hwif, i); ide_init_port_hw(hwif, &hw); - hwif->mmio = 1; default_hwif_mmiops(hwif); idx[0] = i; diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c index 1747b2358775..43057e0303c8 100644 --- a/drivers/ide/arm/rapide.c +++ b/drivers/ide/arm/rapide.c @@ -11,6 +11,10 @@ #include <asm/ecard.h> +static struct const ide_port_info rapide_port_info = { + .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA, +}; + static void rapide_setup_ports(hw_regs_t *hw, void __iomem *base, void __iomem *ctrl, unsigned int sz, int irq) { @@ -44,25 +48,26 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id) goto release; } - hwif = ide_find_port(); - if (hwif) { - memset(&hw, 0, sizeof(hw)); - rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq); - hw.chipset = ide_generic; - hw.dev = &ec->dev; + memset(&hw, 0, sizeof(hw)); + rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq); + hw.chipset = ide_generic; + hw.dev = &ec->dev; - ide_init_port_hw(hwif, &hw); + hwif = ide_find_port(); + if (hwif == NULL) { + ret = -ENOENT; + goto release; + } - hwif->host_flags = IDE_HFLAG_MMIO; - default_hwif_mmiops(hwif); + ide_init_port_hw(hwif, &hw); + default_hwif_mmiops(hwif); - idx[0] = hwif->index; + idx[0] = hwif->index; - ide_device_add(idx, NULL); + ide_device_add(idx, &rapide_port_info); - ecard_set_drvdata(ec, hwif); - goto out; - } + ecard_set_drvdata(ec, hwif); + goto out; release: ecard_release_resources(ec); diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c index ecf53bb0d2aa..20fad6d542cc 100644 --- a/drivers/ide/h8300/ide-h8300.c +++ b/drivers/ide/h8300/ide-h8300.c @@ -8,6 +8,8 @@ #include <asm/io.h> #include <asm/irq.h> +#define DRV_NAME "ide-h8300" + #define bswap(d) \ ({ \ u16 r; \ @@ -52,8 +54,6 @@ static void h8300_tf_load(ide_drive_t *drive, ide_task_t *task) if (task->tf_flags & IDE_TFLAG_FLAGGED) HIHI = 0xFF; - ide_set_irq(drive, 1); - if (task->tf_flags & IDE_TFLAG_OUT_DATA) mm_outw((tf->hob_data << 8) | tf->data, io_ports->data_addr); @@ -98,7 +98,7 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task) } /* be sure we're looking at the low order bits */ - outb(drive->ctl & ~0x80, io_ports->ctl_addr); + outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = inb(io_ports->nsect_addr); @@ -112,7 +112,7 @@ static void h8300_tf_read(ide_drive_t *drive, ide_task_t *task) tf->device = inb(io_ports->device_addr); if (task->tf_flags & IDE_TFLAG_LBA48) { - outb(drive->ctl | 0x80, io_ports->ctl_addr); + outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) tf->hob_feature = inb(io_ports->feature_addr); @@ -178,6 +178,10 @@ static inline void hwif_setup(ide_hwif_t *hwif) hwif->output_data = h8300_output_data; } +static const struct ide_port_info h8300_port_info = { + .host_flags = IDE_HFLAG_NO_IO_32BIT | IDE_HFLAG_NO_DMA, +}; + static int __init h8300_ide_init(void) { hw_regs_t hw; @@ -185,6 +189,8 @@ static int __init h8300_ide_init(void) int index; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + printk(KERN_INFO DRV_NAME ": H8/300 generic IDE interface\n"); + if (!request_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8, "ide-h8300")) goto out_busy; if (!request_region(CONFIG_H8300_IDE_ALT, H8300_IDE_GAP, "ide-h8300")) { @@ -194,22 +200,17 @@ static int __init h8300_ide_init(void) hw_setup(&hw); - hwif = ide_find_port(); - if (hwif == NULL) { - printk(KERN_ERR "ide-h8300: IDE I/F register failed\n"); + hwif = ide_find_port_slot(&h8300_port_info); + if (hwif == NULL) return -ENOENT; - } index = hwif->index; - ide_init_port_data(hwif, index); ide_init_port_hw(hwif, &hw); hwif_setup(hwif); - hwif->host_flags = IDE_HFLAG_NO_IO_32BIT; - printk(KERN_INFO "ide%d: H8/300 generic IDE interface\n", index); idx[0] = index; - ide_device_add(idx, NULL); + ide_device_add(idx, &h8300_port_info); return 0; diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index 9d3601fa5680..6f704628c27d 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -60,15 +60,15 @@ struct ide_acpi_hwif_link { #define DEBPRINT(fmt, args...) do {} while (0) #endif /* DEBUGGING */ -int ide_noacpi; +static int ide_noacpi; module_param_named(noacpi, ide_noacpi, bool, 0); MODULE_PARM_DESC(noacpi, "disable IDE ACPI support"); -int ide_acpigtf; +static int ide_acpigtf; module_param_named(acpigtf, ide_acpigtf, bool, 0); MODULE_PARM_DESC(acpigtf, "enable IDE ACPI _GTF support"); -int ide_acpionboot; +static int ide_acpionboot; module_param_named(acpionboot, ide_acpionboot, bool, 0); MODULE_PARM_DESC(acpionboot, "call IDE ACPI methods on boot"); diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c new file mode 100644 index 000000000000..2802031de670 --- /dev/null +++ b/drivers/ide/ide-atapi.c @@ -0,0 +1,296 @@ +/* + * ATAPI support. + */ + +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/ide.h> +#include <scsi/scsi.h> + +#ifdef DEBUG +#define debug_log(fmt, args...) \ + printk(KERN_INFO "ide: " fmt, ## args) +#else +#define debug_log(fmt, args...) do {} while (0) +#endif + +/* TODO: unify the code thus making some arguments go away */ +ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, + ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, + void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), + void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *), + void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) +{ + ide_hwif_t *hwif = drive->hwif; + xfer_func_t *xferfunc; + unsigned int temp; + u16 bcount; + u8 stat, ireason, scsi = drive->scsi; + + debug_log("Enter %s - interrupt handler\n", __func__); + + if (pc->flags & PC_FLAG_TIMEDOUT) { + pc->callback(drive); + return ide_stopped; + } + + /* Clear the interrupt */ + stat = ide_read_status(drive); + + if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { + if (hwif->dma_ops->dma_end(drive) || + (drive->media == ide_tape && !scsi && (stat & ERR_STAT))) { + if (drive->media == ide_floppy && !scsi) + printk(KERN_ERR "%s: DMA %s error\n", + drive->name, rq_data_dir(pc->rq) + ? "write" : "read"); + pc->flags |= PC_FLAG_DMA_ERROR; + } else { + pc->xferred = pc->req_xfer; + if (update_buffers) + update_buffers(drive, pc); + } + debug_log("%s: DMA finished\n", drive->name); + } + + /* No more interrupts */ + if ((stat & DRQ_STAT) == 0) { + debug_log("Packet command completed, %d bytes transferred\n", + pc->xferred); + + pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; + + local_irq_enable_in_hardirq(); + + if (drive->media == ide_tape && !scsi && + (stat & ERR_STAT) && pc->c[0] == REQUEST_SENSE) + stat &= ~ERR_STAT; + if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) { + /* Error detected */ + debug_log("%s: I/O error\n", drive->name); + + if (drive->media != ide_tape || scsi) { + pc->rq->errors++; + if (scsi) + goto cmd_finished; + } + + if (pc->c[0] == REQUEST_SENSE) { + printk(KERN_ERR "%s: I/O error in request sense" + " command\n", drive->name); + return ide_do_reset(drive); + } + + debug_log("[cmd %x]: check condition\n", pc->c[0]); + + /* Retry operation */ + retry_pc(drive); + /* queued, but not started */ + return ide_stopped; + } +cmd_finished: + pc->error = 0; + if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) && + (stat & SEEK_STAT) == 0) { + dsc_handle(drive); + return ide_stopped; + } + /* Command finished - Call the callback function */ + pc->callback(drive); + return ide_stopped; + } + + if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { + pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; + printk(KERN_ERR "%s: The device wants to issue more interrupts " + "in DMA mode\n", drive->name); + ide_dma_off(drive); + return ide_do_reset(drive); + } + /* Get the number of bytes to transfer on this interrupt. */ + bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | + hwif->INB(hwif->io_ports.lbam_addr); + + ireason = hwif->INB(hwif->io_ports.nsect_addr); + + if (ireason & CD) { + printk(KERN_ERR "%s: CoD != 0 in %s\n", drive->name, __func__); + return ide_do_reset(drive); + } + if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) { + /* Hopefully, we will never get here */ + printk(KERN_ERR "%s: We wanted to %s, but the device wants us " + "to %s!\n", drive->name, + (ireason & IO) ? "Write" : "Read", + (ireason & IO) ? "Read" : "Write"); + return ide_do_reset(drive); + } + if (!(pc->flags & PC_FLAG_WRITING)) { + /* Reading - Check that we have enough space */ + temp = pc->xferred + bcount; + if (temp > pc->req_xfer) { + if (temp > pc->buf_size) { + printk(KERN_ERR "%s: The device wants to send " + "us more data than expected - " + "discarding data\n", + drive->name); + if (scsi) + temp = pc->buf_size - pc->xferred; + else + temp = 0; + if (temp) { + if (pc->sg) + io_buffers(drive, pc, temp, 0); + else + hwif->input_data(drive, NULL, + pc->cur_pos, temp); + printk(KERN_ERR "%s: transferred %d of " + "%d bytes\n", + drive->name, + temp, bcount); + } + pc->xferred += temp; + pc->cur_pos += temp; + ide_pad_transfer(drive, 0, bcount - temp); + ide_set_handler(drive, handler, timeout, + expiry); + return ide_started; + } + debug_log("The device wants to send us more data than " + "expected - allowing transfer\n"); + } + xferfunc = hwif->input_data; + } else + xferfunc = hwif->output_data; + + if ((drive->media == ide_floppy && !scsi && !pc->buf) || + (drive->media == ide_tape && !scsi && pc->bh) || + (scsi && pc->sg)) + io_buffers(drive, pc, bcount, !!(pc->flags & PC_FLAG_WRITING)); + else + xferfunc(drive, NULL, pc->cur_pos, bcount); + + /* Update the current position */ + pc->xferred += bcount; + pc->cur_pos += bcount; + + debug_log("[cmd %x] transferred %d bytes on that intr.\n", + pc->c[0], bcount); + + /* And set the interrupt handler again */ + ide_set_handler(drive, handler, timeout, expiry); + return ide_started; +} +EXPORT_SYMBOL_GPL(ide_pc_intr); + +static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) +{ + ide_hwif_t *hwif = drive->hwif; + int retries = 100; + + while (retries-- && ((ireason & CD) == 0 || (ireason & IO))) { + printk(KERN_ERR "%s: (IO,CoD != (0,1) while issuing " + "a packet command, retrying\n", drive->name); + udelay(100); + ireason = hwif->INB(hwif->io_ports.nsect_addr); + if (retries == 0) { + printk(KERN_ERR "%s: (IO,CoD != (0,1) while issuing " + "a packet command, ignoring\n", + drive->name); + ireason |= CD; + ireason &= ~IO; + } + } + + return ireason; +} + +ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, + ide_handler_t *handler, unsigned int timeout, + ide_expiry_t *expiry) +{ + ide_hwif_t *hwif = drive->hwif; + ide_startstop_t startstop; + u8 ireason; + + if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) { + printk(KERN_ERR "%s: Strange, packet command initiated yet " + "DRQ isn't asserted\n", drive->name); + return startstop; + } + + ireason = hwif->INB(hwif->io_ports.nsect_addr); + if (drive->media == ide_tape && !drive->scsi) + ireason = ide_wait_ireason(drive, ireason); + + if ((ireason & CD) == 0 || (ireason & IO)) { + printk(KERN_ERR "%s: (IO,CoD) != (0,1) while issuing " + "a packet command\n", drive->name); + return ide_do_reset(drive); + } + + /* Set the interrupt routine */ + ide_set_handler(drive, handler, timeout, expiry); + + /* Begin DMA, if necessary */ + if (pc->flags & PC_FLAG_DMA_OK) { + pc->flags |= PC_FLAG_DMA_IN_PROGRESS; + hwif->dma_ops->dma_start(drive); + } + + /* Send the actual packet */ + if ((pc->flags & PC_FLAG_ZIP_DRIVE) == 0) + hwif->output_data(drive, NULL, pc->c, 12); + + return ide_started; +} +EXPORT_SYMBOL_GPL(ide_transfer_pc); + +ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, + ide_handler_t *handler, unsigned int timeout, + ide_expiry_t *expiry) +{ + ide_hwif_t *hwif = drive->hwif; + u16 bcount; + u8 dma = 0; + + /* We haven't transferred any data yet */ + pc->xferred = 0; + pc->cur_pos = pc->buf; + + /* Request to transfer the entire buffer at once */ + if (drive->media == ide_tape && !drive->scsi) + bcount = pc->req_xfer; + else + bcount = min(pc->req_xfer, 63 * 1024); + + if (pc->flags & PC_FLAG_DMA_ERROR) { + pc->flags &= ~PC_FLAG_DMA_ERROR; + ide_dma_off(drive); + } + + if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) { + if (drive->scsi) + hwif->sg_mapped = 1; + dma = !hwif->dma_ops->dma_setup(drive); + if (drive->scsi) + hwif->sg_mapped = 0; + } + + if (!dma) + pc->flags &= ~PC_FLAG_DMA_OK; + + ide_pktcmd_tf_load(drive, drive->scsi ? 0 : IDE_TFLAG_OUT_DEVICE, + bcount, dma); + + /* Issue the packet command */ + if (pc->flags & PC_FLAG_DRQ_INTERRUPT) { + ide_execute_command(drive, WIN_PACKETCMD, handler, + timeout, NULL); + return ide_started; + } else { + ide_execute_pkt_cmd(drive); + return (*handler)(drive); + } +} +EXPORT_SYMBOL_GPL(ide_issue_pc); diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 68e7f19dc036..b5ec249307b4 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -188,16 +188,6 @@ static void cdrom_analyze_sense_data(ide_drive_t *drive, ide_cd_log_error(drive->name, failed_command, sense); } -/* Initialize a ide-cd packet command request */ -void ide_cd_init_rq(ide_drive_t *drive, struct request *rq) -{ - struct cdrom_info *cd = drive->driver_data; - - ide_init_drive_cmd(rq); - rq->cmd_type = REQ_TYPE_ATA_PC; - rq->rq_disk = cd->disk; -} - static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, struct request *failed_command) { @@ -208,7 +198,9 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, sense = &info->sense_data; /* stuff the sense request in front of our current request */ - ide_cd_init_rq(drive, rq); + blk_rq_init(NULL, rq); + rq->cmd_type = REQ_TYPE_ATA_PC; + rq->rq_disk = info->disk; rq->data = sense; rq->cmd[0] = GPCMD_REQUEST_SENSE; @@ -216,11 +208,12 @@ static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, rq->data_len = 18; rq->cmd_type = REQ_TYPE_SENSE; + rq->cmd_flags |= REQ_PREEMPT; /* NOTE! Save the failed command in "rq->buffer" */ rq->buffer = (void *) failed_command; - (void) ide_do_drive_cmd(drive, rq, ide_preempt); + ide_do_drive_cmd(drive, rq); } static void cdrom_end_request(ide_drive_t *drive, int uptodate) @@ -524,21 +517,16 @@ static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive, int xferlen, ide_handler_t *handler) { - ide_startstop_t startstop; struct cdrom_info *info = drive->driver_data; ide_hwif_t *hwif = drive->hwif; - /* wait for the controller to be idle */ - if (ide_wait_stat(&startstop, drive, 0, BUSY_STAT, WAIT_READY)) - return startstop; - /* FIXME: for Virtual DMA we must check harder */ if (info->dma) info->dma = !hwif->dma_ops->dma_setup(drive); /* set up the controller registers */ - ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL | - IDE_TFLAG_NO_SELECT_MASK, xferlen, info->dma); + ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL, + xferlen, info->dma); if (info->cd_flags & IDE_CD_FLAG_DRQ_INTERRUPT) { /* waiting for CDB interrupt, not DMA yet. */ @@ -611,28 +599,6 @@ static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive, } /* - * Block read functions. - */ -static void ide_cd_pad_transfer(ide_drive_t *drive, xfer_func_t *xf, int len) -{ - while (len > 0) { - int dum = 0; - xf(drive, NULL, &dum, sizeof(dum)); - len -= sizeof(dum); - } -} - -static void ide_cd_drain_data(ide_drive_t *drive, int nsects) -{ - while (nsects > 0) { - static char dum[SECTOR_SIZE]; - - drive->hwif->input_data(drive, NULL, dum, sizeof(dum)); - nsects--; - } -} - -/* * Check the contents of the interrupt reason register from the cdrom * and attempt to recover if there are problems. Returns 0 if everything's * ok; nonzero if the request has been terminated. @@ -647,15 +613,12 @@ static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, if (ireason == (!rw << 1)) return 0; else if (ireason == (rw << 1)) { - ide_hwif_t *hwif = drive->hwif; - xfer_func_t *xf; /* whoops... */ printk(KERN_ERR "%s: %s: wrong transfer direction!\n", drive->name, __func__); - xf = rw ? hwif->output_data : hwif->input_data; - ide_cd_pad_transfer(drive, xf, len); + ide_pad_transfer(drive, rw, len); } else if (rw == 0 && ireason == 1) { /* * Some drives (ASUS) seem to tell us that status info is @@ -703,16 +666,9 @@ static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) static ide_startstop_t cdrom_newpc_intr(ide_drive_t *); -/* - * Routine to send a read/write packet command to the drive. This is usually - * called directly from cdrom_start_{read,write}(). However, for drq_interrupt - * devices, it is called from an interrupt when the drive is ready to accept - * the command. - */ -static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive) +static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive, + struct request *rq) { - struct request *rq = HWGROUP(drive)->rq; - if (rq_data_dir(rq) == READ) { unsigned short sectors_per_frame = queue_hardsect_size(drive->queue) >> SECTOR_BITS; @@ -749,6 +705,19 @@ static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive) /* set up the command */ rq->timeout = ATAPI_WAIT_PC; + return ide_started; +} + +/* + * Routine to send a read/write packet command to the drive. This is usually + * called directly from cdrom_start_{read,write}(). However, for drq_interrupt + * devices, it is called from an interrupt when the drive is ready to accept + * the command. + */ +static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive) +{ + struct request *rq = drive->hwif->hwgroup->rq; + /* send the command to the drive and return */ return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); } @@ -775,9 +744,8 @@ static ide_startstop_t cdrom_seek_intr(ide_drive_t *drive) return ide_stopped; } -static ide_startstop_t cdrom_start_seek_continuation(ide_drive_t *drive) +static void ide_cd_prepare_seek_request(ide_drive_t *drive, struct request *rq) { - struct request *rq = HWGROUP(drive)->rq; sector_t frame = rq->sector; sector_div(frame, queue_hardsect_size(drive->queue) >> SECTOR_BITS); @@ -787,17 +755,13 @@ static ide_startstop_t cdrom_start_seek_continuation(ide_drive_t *drive) put_unaligned(cpu_to_be32(frame), (unsigned int *) &rq->cmd[2]); rq->timeout = ATAPI_WAIT_PC; - return cdrom_transfer_packet_command(drive, rq, &cdrom_seek_intr); } -static ide_startstop_t cdrom_start_seek(ide_drive_t *drive, unsigned int block) +static ide_startstop_t cdrom_start_seek_continuation(ide_drive_t *drive) { - struct cdrom_info *info = drive->driver_data; + struct request *rq = drive->hwif->hwgroup->rq; - info->dma = 0; - info->start_seek = jiffies; - return cdrom_start_packet_command(drive, 0, - cdrom_start_seek_continuation); + return cdrom_transfer_packet_command(drive, rq, &cdrom_seek_intr); } /* @@ -838,34 +802,54 @@ static void ide_cd_request_sense_fixup(struct request *rq) } } -int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq) +int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, + int write, void *buffer, unsigned *bufflen, + struct request_sense *sense, int timeout, + unsigned int cmd_flags) { - struct request_sense sense; + struct cdrom_info *info = drive->driver_data; + struct request_sense local_sense; int retries = 10; - unsigned int flags = rq->cmd_flags; + unsigned int flags = 0; - if (rq->sense == NULL) - rq->sense = &sense; + if (!sense) + sense = &local_sense; /* start of retry loop */ do { + struct request *rq; int error; - unsigned long time = jiffies; - rq->cmd_flags = flags; - error = ide_do_drive_cmd(drive, rq, ide_wait); - time = jiffies - time; + rq = blk_get_request(drive->queue, write, __GFP_WAIT); + + memcpy(rq->cmd, cmd, BLK_MAX_CDB); + rq->cmd_type = REQ_TYPE_ATA_PC; + rq->sense = sense; + rq->cmd_flags |= cmd_flags; + rq->timeout = timeout; + if (buffer) { + rq->data = buffer; + rq->data_len = *bufflen; + } + + error = blk_execute_rq(drive->queue, info->disk, rq, 0); + + if (buffer) + *bufflen = rq->data_len; + + flags = rq->cmd_flags; + blk_put_request(rq); /* * FIXME: we should probably abort/retry or something in case of * failure. */ - if (rq->cmd_flags & REQ_FAILED) { + if (flags & REQ_FAILED) { /* * The request failed. Retry if it was due to a unit * attention status (usually means media was changed). */ - struct request_sense *reqbuf = rq->sense; + struct request_sense *reqbuf = sense; if (reqbuf->sense_key == UNIT_ATTENTION) cdrom_saw_media_change(drive); @@ -885,10 +869,10 @@ int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq) } /* end of retry loop */ - } while ((rq->cmd_flags & REQ_FAILED) && retries >= 0); + } while ((flags & REQ_FAILED) && retries >= 0); /* return an error if the command failed */ - return (rq->cmd_flags & REQ_FAILED) ? -EIO : 0; + return (flags & REQ_FAILED) ? -EIO : 0; } /* @@ -998,7 +982,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) - bio_cur_sectors(rq->bio), thislen >> 9); if (nskip > 0) { - ide_cd_drain_data(drive, nskip); + ide_pad_transfer(drive, write, nskip << 9); rq->current_nr_sectors -= nskip; thislen -= (nskip << 9); } @@ -1035,7 +1019,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) * If the buffers are full, pipe the rest into * oblivion. */ - ide_cd_drain_data(drive, thislen >> 9); + ide_pad_transfer(drive, 0, thislen); else { printk(KERN_ERR "%s: confused, missing data\n", drive->name); @@ -1083,7 +1067,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) /* pad, if necessary */ if (!blk_fs_request(rq) && len > 0) - ide_cd_pad_transfer(drive, xferfunc, len); + ide_pad_transfer(drive, write, len); if (blk_pc_request(rq)) { timeout = rq->timeout; @@ -1152,21 +1136,17 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) if (write) cd->devinfo.media_written = 1; - /* start sending the read/write request to the drive */ - return cdrom_start_packet_command(drive, 32768, cdrom_start_rw_cont); + return ide_started; } static ide_startstop_t cdrom_do_newpc_cont(ide_drive_t *drive) { struct request *rq = HWGROUP(drive)->rq; - if (!rq->timeout) - rq->timeout = ATAPI_WAIT_PC; - return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); } -static ide_startstop_t cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) +static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) { struct cdrom_info *info = drive->driver_data; @@ -1194,20 +1174,17 @@ static ide_startstop_t cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) if ((rq->data_len & 15) || (addr & mask)) info->dma = 0; } - - /* start sending the command to the drive */ - return cdrom_start_packet_command(drive, rq->data_len, - cdrom_do_newpc_cont); } /* * cdrom driver request routine. */ -static ide_startstop_t ide_do_rw_cdrom(ide_drive_t *drive, struct request *rq, +static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, sector_t block) { - ide_startstop_t action; struct cdrom_info *info = drive->driver_data; + ide_handler_t *fn; + int xferlen; if (blk_fs_request(rq)) { if (info->cd_flags & IDE_CD_FLAG_SEEKING) { @@ -1227,29 +1204,48 @@ static ide_startstop_t ide_do_rw_cdrom(ide_drive_t *drive, struct request *rq, } if (rq_data_dir(rq) == READ && IDE_LARGE_SEEK(info->last_block, block, - IDECD_SEEK_THRESHOLD) && - drive->dsc_overlap) - action = cdrom_start_seek(drive, block); - else - action = cdrom_start_rw(drive, rq); + IDECD_SEEK_THRESHOLD) && + drive->dsc_overlap) { + xferlen = 0; + fn = cdrom_start_seek_continuation; + + info->dma = 0; + info->start_seek = jiffies; + + ide_cd_prepare_seek_request(drive, rq); + } else { + xferlen = 32768; + fn = cdrom_start_rw_cont; + + if (cdrom_start_rw(drive, rq) == ide_stopped) + return ide_stopped; + + if (ide_cd_prepare_rw_request(drive, rq) == ide_stopped) + return ide_stopped; + } info->last_block = block; - return action; } else if (blk_sense_request(rq) || blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) { - return cdrom_do_block_pc(drive, rq); + xferlen = rq->data_len; + fn = cdrom_do_newpc_cont; + + if (!rq->timeout) + rq->timeout = ATAPI_WAIT_PC; + + cdrom_do_block_pc(drive, rq); } else if (blk_special_request(rq)) { /* right now this can only be a reset... */ cdrom_end_request(drive, 1); return ide_stopped; + } else { + blk_dump_rq_flags(rq, "ide-cd bad flags"); + cdrom_end_request(drive, 0); + return ide_stopped; } - blk_dump_rq_flags(rq, "ide-cd bad flags"); - cdrom_end_request(drive, 0); - return ide_stopped; + return cdrom_start_packet_command(drive, xferlen, fn); } - - /* * Ioctl handling. * @@ -1268,23 +1264,20 @@ static void msf_from_bcd(struct atapi_msf *msf) int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) { - struct request req; struct cdrom_info *info = drive->driver_data; struct cdrom_device_info *cdi = &info->devinfo; + unsigned char cmd[BLK_MAX_CDB]; - ide_cd_init_rq(drive, &req); - - req.sense = sense; - req.cmd[0] = GPCMD_TEST_UNIT_READY; - req.cmd_flags |= REQ_QUIET; + memset(cmd, 0, BLK_MAX_CDB); + cmd[0] = GPCMD_TEST_UNIT_READY; /* * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs * instead of supporting the LOAD_UNLOAD opcode. */ - req.cmd[7] = cdi->sanyo_slot % 3; + cmd[7] = cdi->sanyo_slot % 3; - return ide_cd_queue_pc(drive, &req); + return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, REQ_QUIET); } static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, @@ -1297,17 +1290,14 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, } capbuf; int stat; - struct request req; - - ide_cd_init_rq(drive, &req); + unsigned char cmd[BLK_MAX_CDB]; + unsigned len = sizeof(capbuf); - req.sense = sense; - req.cmd[0] = GPCMD_READ_CDVD_CAPACITY; - req.data = (char *)&capbuf; - req.data_len = sizeof(capbuf); - req.cmd_flags |= REQ_QUIET; + memset(cmd, 0, BLK_MAX_CDB); + cmd[0] = GPCMD_READ_CDVD_CAPACITY; - stat = ide_cd_queue_pc(drive, &req); + stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, + REQ_QUIET); if (stat == 0) { *capacity = 1 + be32_to_cpu(capbuf.lba); *sectors_per_frame = @@ -1321,24 +1311,20 @@ static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, int format, char *buf, int buflen, struct request_sense *sense) { - struct request req; + unsigned char cmd[BLK_MAX_CDB]; - ide_cd_init_rq(drive, &req); + memset(cmd, 0, BLK_MAX_CDB); - req.sense = sense; - req.data = buf; - req.data_len = buflen; - req.cmd_flags |= REQ_QUIET; - req.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; - req.cmd[6] = trackno; - req.cmd[7] = (buflen >> 8); - req.cmd[8] = (buflen & 0xff); - req.cmd[9] = (format << 6); + cmd[0] = GPCMD_READ_TOC_PMA_ATIP; + cmd[6] = trackno; + cmd[7] = (buflen >> 8); + cmd[8] = (buflen & 0xff); + cmd[9] = (format << 6); if (msf_flag) - req.cmd[1] = 2; + cmd[1] = 2; - return ide_cd_queue_pc(drive, &req); + return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); } /* Try to read the entire TOC for the disk into our internal buffer. */ @@ -1951,7 +1937,7 @@ static ide_driver_t ide_cdrom_driver = { .version = IDECD_VERSION, .media = ide_cdrom, .supports_dsc_overlap = 1, - .do_request = ide_do_rw_cdrom, + .do_request = ide_cd_do_request, .end_request = ide_end_request, .error = __ide_error, .abort = __ide_abort, @@ -2103,11 +2089,6 @@ static int ide_cd_probe(ide_drive_t *drive) goto failed; } } - if (drive->scsi) { - printk(KERN_INFO "ide-cd: passing drive %s to ide-scsi " - "emulation.\n", drive->name); - goto failed; - } info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); if (info == NULL) { printk(KERN_ERR "%s: Can't allocate a cdrom structure\n", diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h index a58801c4484d..fe0ea36e4124 100644 --- a/drivers/ide/ide-cd.h +++ b/drivers/ide/ide-cd.h @@ -143,8 +143,8 @@ struct cdrom_info { void ide_cd_log_error(const char *, struct request *, struct request_sense *); /* ide-cd.c functions used by ide-cd_ioctl.c */ -void ide_cd_init_rq(ide_drive_t *, struct request *); -int ide_cd_queue_pc(ide_drive_t *, struct request *); +int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *, + unsigned *, struct request_sense *, int, unsigned int); int ide_cd_read_toc(ide_drive_t *, struct request_sense *); int ide_cdrom_get_capabilities(ide_drive_t *, u8 *); void ide_cdrom_update_speed(ide_drive_t *, u8 *); diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index 6d147ce6782f..24d002addf73 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -104,8 +104,8 @@ int cdrom_eject(ide_drive_t *drive, int ejectflag, { struct cdrom_info *cd = drive->driver_data; struct cdrom_device_info *cdi = &cd->devinfo; - struct request req; char loej = 0x02; + unsigned char cmd[BLK_MAX_CDB]; if ((cd->cd_flags & IDE_CD_FLAG_NO_EJECT) && !ejectflag) return -EDRIVE_CANT_DO_THIS; @@ -114,17 +114,16 @@ int cdrom_eject(ide_drive_t *drive, int ejectflag, if ((cd->cd_flags & IDE_CD_FLAG_DOOR_LOCKED) && ejectflag) return 0; - ide_cd_init_rq(drive, &req); - /* only tell drive to close tray if open, if it can do that */ if (ejectflag && (cdi->mask & CDC_CLOSE_TRAY)) loej = 0; - req.sense = sense; - req.cmd[0] = GPCMD_START_STOP_UNIT; - req.cmd[4] = loej | (ejectflag != 0); + memset(cmd, 0, BLK_MAX_CDB); + + cmd[0] = GPCMD_START_STOP_UNIT; + cmd[4] = loej | (ejectflag != 0); - return ide_cd_queue_pc(drive, &req); + return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, 0); } /* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */ @@ -134,7 +133,6 @@ int ide_cd_lockdoor(ide_drive_t *drive, int lockflag, { struct cdrom_info *cd = drive->driver_data; struct request_sense my_sense; - struct request req; int stat; if (sense == NULL) @@ -144,11 +142,15 @@ int ide_cd_lockdoor(ide_drive_t *drive, int lockflag, if (cd->cd_flags & IDE_CD_FLAG_NO_DOORLOCK) { stat = 0; } else { - ide_cd_init_rq(drive, &req); - req.sense = sense; - req.cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; - req.cmd[4] = lockflag ? 1 : 0; - stat = ide_cd_queue_pc(drive, &req); + unsigned char cmd[BLK_MAX_CDB]; + + memset(cmd, 0, BLK_MAX_CDB); + + cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; + cmd[4] = lockflag ? 1 : 0; + + stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0, + sense, 0, 0); } /* If we got an illegal field error, the drive @@ -206,32 +208,30 @@ int ide_cdrom_select_speed(struct cdrom_device_info *cdi, int speed) { ide_drive_t *drive = cdi->handle; struct cdrom_info *cd = drive->driver_data; - struct request rq; struct request_sense sense; u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; int stat; - - ide_cd_init_rq(drive, &rq); - - rq.sense = &sense; + unsigned char cmd[BLK_MAX_CDB]; if (speed == 0) speed = 0xffff; /* set to max */ else speed *= 177; /* Nx to kbytes/s */ - rq.cmd[0] = GPCMD_SET_SPEED; + memset(cmd, 0, BLK_MAX_CDB); + + cmd[0] = GPCMD_SET_SPEED; /* Read Drive speed in kbytes/second MSB/LSB */ - rq.cmd[2] = (speed >> 8) & 0xff; - rq.cmd[3] = speed & 0xff; + cmd[2] = (speed >> 8) & 0xff; + cmd[3] = speed & 0xff; if ((cdi->mask & (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) != (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) { /* Write Drive speed in kbytes/second MSB/LSB */ - rq.cmd[4] = (speed >> 8) & 0xff; - rq.cmd[5] = speed & 0xff; + cmd[4] = (speed >> 8) & 0xff; + cmd[5] = speed & 0xff; } - stat = ide_cd_queue_pc(drive, &rq); + stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0); if (!ide_cdrom_get_capabilities(drive, buf)) { ide_cdrom_update_speed(drive, buf); @@ -268,21 +268,19 @@ int ide_cdrom_get_mcn(struct cdrom_device_info *cdi, { ide_drive_t *drive = cdi->handle; int stat, mcnlen; - struct request rq; char buf[24]; + unsigned char cmd[BLK_MAX_CDB]; + unsigned len = sizeof(buf); - ide_cd_init_rq(drive, &rq); + memset(cmd, 0, BLK_MAX_CDB); - rq.data = buf; - rq.data_len = sizeof(buf); + cmd[0] = GPCMD_READ_SUBCHANNEL; + cmd[1] = 2; /* MSF addressing */ + cmd[2] = 0x40; /* request subQ data */ + cmd[3] = 2; /* format */ + cmd[8] = len; - rq.cmd[0] = GPCMD_READ_SUBCHANNEL; - rq.cmd[1] = 2; /* MSF addressing */ - rq.cmd[2] = 0x40; /* request subQ data */ - rq.cmd[3] = 2; /* format */ - rq.cmd[8] = sizeof(buf); - - stat = ide_cd_queue_pc(drive, &rq); + stat = ide_cd_queue_pc(drive, cmd, 0, buf, &len, NULL, 0, 0); if (stat) return stat; @@ -298,14 +296,14 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi) ide_drive_t *drive = cdi->handle; struct cdrom_info *cd = drive->driver_data; struct request_sense sense; - struct request req; + struct request *rq; int ret; - ide_cd_init_rq(drive, &req); - req.cmd_type = REQ_TYPE_SPECIAL; - req.cmd_flags = REQ_QUIET; - ret = ide_do_drive_cmd(drive, &req, ide_wait); - + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd_flags = REQ_QUIET; + ret = blk_execute_rq(drive->queue, cd->disk, rq, 0); + blk_put_request(rq); /* * A reset will unlock the door. If it was previously locked, * lock it again. @@ -351,8 +349,8 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) struct atapi_toc_entry *first_toc, *last_toc; unsigned long lba_start, lba_end; int stat; - struct request rq; struct request_sense sense; + unsigned char cmd[BLK_MAX_CDB]; stat = ide_cd_get_toc_entry(drive, ti->cdti_trk0, &first_toc); if (stat) @@ -370,14 +368,13 @@ static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) if (lba_end <= lba_start) return -EINVAL; - ide_cd_init_rq(drive, &rq); + memset(cmd, 0, BLK_MAX_CDB); - rq.sense = &sense; - rq.cmd[0] = GPCMD_PLAY_AUDIO_MSF; - lba_to_msf(lba_start, &rq.cmd[3], &rq.cmd[4], &rq.cmd[5]); - lba_to_msf(lba_end - 1, &rq.cmd[6], &rq.cmd[7], &rq.cmd[8]); + cmd[0] = GPCMD_PLAY_AUDIO_MSF; + lba_to_msf(lba_start, &cmd[3], &cmd[4], &cmd[5]); + lba_to_msf(lba_end - 1, &cmd[6], &cmd[7], &cmd[8]); - return ide_cd_queue_pc(drive, &rq); + return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0); } static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg) @@ -447,8 +444,9 @@ int ide_cdrom_audio_ioctl(struct cdrom_device_info *cdi, int ide_cdrom_packet(struct cdrom_device_info *cdi, struct packet_command *cgc) { - struct request req; ide_drive_t *drive = cdi->handle; + unsigned int flags = 0; + unsigned len = cgc->buflen; if (cgc->timeout <= 0) cgc->timeout = ATAPI_WAIT_PC; @@ -456,24 +454,21 @@ int ide_cdrom_packet(struct cdrom_device_info *cdi, /* here we queue the commands from the uniform CD-ROM layer. the packet must be complete, as we do not touch it at all. */ - ide_cd_init_rq(drive, &req); if (cgc->data_direction == CGC_DATA_WRITE) - req.cmd_flags |= REQ_RW; + flags |= REQ_RW; - memcpy(req.cmd, cgc->cmd, CDROM_PACKET_SIZE); if (cgc->sense) memset(cgc->sense, 0, sizeof(struct request_sense)); - req.data = cgc->buffer; - req.data_len = cgc->buflen; - req.timeout = cgc->timeout; if (cgc->quiet) - req.cmd_flags |= REQ_QUIET; + flags |= REQ_QUIET; - req.sense = cgc->sense; - cgc->stat = ide_cd_queue_pc(drive, &req); + cgc->stat = ide_cd_queue_pc(drive, cgc->cmd, + cgc->data_direction == CGC_DATA_WRITE, + cgc->buffer, &len, + cgc->sense, cgc->timeout, flags); if (!cgc->stat) - cgc->buflen -= req.data_len; + cgc->buflen -= len; return cgc->stat; } diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 8e08d083fce9..5f49a4ae9dd8 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -198,8 +198,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq, } memset(&task, 0, sizeof(task)); - task.tf_flags = IDE_TFLAG_NO_SELECT_MASK; /* FIXME? */ - task.tf_flags |= (IDE_TFLAG_TF | IDE_TFLAG_DEVICE); + task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; if (drive->select.b.lba) { if (lba48) { @@ -617,7 +616,8 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq) */ static int set_multcount(ide_drive_t *drive, int arg) { - struct request rq; + struct request *rq; + int error; if (arg < 0 || arg > drive->id->max_multsect) return -EINVAL; @@ -625,12 +625,13 @@ static int set_multcount(ide_drive_t *drive, int arg) if (drive->special.b.set_multmode) return -EBUSY; - ide_init_drive_cmd(&rq); - rq.cmd_type = REQ_TYPE_ATA_TASKFILE; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_ATA_TASKFILE; drive->mult_req = arg; drive->special.b.set_multmode = 1; - (void)ide_do_drive_cmd(drive, &rq, ide_wait); + error = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); return (drive->mult_count == arg) ? 0 : -EIO; } diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 653b1ade13d3..7ee44f86bc54 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -463,7 +463,7 @@ int ide_dma_setup(ide_drive_t *drive) } /* PRD table */ - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) writel(hwif->dmatable_dma, (void __iomem *)(hwif->dma_base + ATA_DMA_TABLE_OFS)); else @@ -692,7 +692,7 @@ static int ide_tune_dma(ide_drive_t *drive) ide_hwif_t *hwif = drive->hwif; u8 speed; - if (noautodma || drive->nodma || (drive->id->capability & 1) == 0) + if (drive->nodma || (drive->id->capability & 1) == 0) return 0; /* consult the list of known "bad" drives */ diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index f05fbc2bd7a8..c7e4433fcbcf 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -286,11 +286,12 @@ static void idefloppy_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, { struct ide_floppy_obj *floppy = drive->driver_data; - ide_init_drive_cmd(rq); + blk_rq_init(NULL, rq); rq->buffer = (char *) pc; rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd_flags |= REQ_PREEMPT; rq->rq_disk = floppy->disk; - (void) ide_do_drive_cmd(drive, rq, ide_preempt); + ide_do_drive_cmd(drive, rq); } static struct ide_atapi_pc *idefloppy_next_pc_storage(ide_drive_t *drive) @@ -311,61 +312,49 @@ static struct request *idefloppy_next_rq_storage(ide_drive_t *drive) return (&floppy->rq_stack[floppy->rq_stack_index++]); } -static void idefloppy_request_sense_callback(ide_drive_t *drive) +static void ide_floppy_callback(ide_drive_t *drive) { idefloppy_floppy_t *floppy = drive->driver_data; - u8 *buf = floppy->pc->buf; + struct ide_atapi_pc *pc = floppy->pc; + int uptodate = pc->error ? 0 : 1; debug_log("Reached %s\n", __func__); - if (!floppy->pc->error) { - floppy->sense_key = buf[2] & 0x0F; - floppy->asc = buf[12]; - floppy->ascq = buf[13]; - floppy->progress_indication = buf[15] & 0x80 ? - (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; - - if (floppy->failed_pc) - debug_log("pc = %x, sense key = %x, asc = %x," - " ascq = %x\n", - floppy->failed_pc->c[0], - floppy->sense_key, - floppy->asc, - floppy->ascq); - else - debug_log("sense key = %x, asc = %x, ascq = %x\n", - floppy->sense_key, - floppy->asc, - floppy->ascq); + if (floppy->failed_pc == pc) + floppy->failed_pc = NULL; + if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || + (pc->rq && blk_pc_request(pc->rq))) + uptodate = 1; /* FIXME */ + else if (pc->c[0] == GPCMD_REQUEST_SENSE) { + u8 *buf = floppy->pc->buf; - idefloppy_end_request(drive, 1, 0); - } else { - printk(KERN_ERR "Error in REQUEST SENSE itself - Aborting" - " request!\n"); - idefloppy_end_request(drive, 0, 0); - } -} + if (!pc->error) { + floppy->sense_key = buf[2] & 0x0F; + floppy->asc = buf[12]; + floppy->ascq = buf[13]; + floppy->progress_indication = buf[15] & 0x80 ? + (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; -/* General packet command callback function. */ -static void idefloppy_pc_callback(ide_drive_t *drive) -{ - idefloppy_floppy_t *floppy = drive->driver_data; + if (floppy->failed_pc) + debug_log("pc = %x, ", floppy->failed_pc->c[0]); - debug_log("Reached %s\n", __func__); + debug_log("sense key = %x, asc = %x, ascq = %x\n", + floppy->sense_key, floppy->asc, floppy->ascq); + } else + printk(KERN_ERR "Error in REQUEST SENSE itself - " + "Aborting request!\n"); + } - idefloppy_end_request(drive, floppy->pc->error ? 0 : 1, 0); + idefloppy_end_request(drive, uptodate, 0); } static void idefloppy_init_pc(struct ide_atapi_pc *pc) { - memset(pc->c, 0, 12); - pc->retries = 0; - pc->flags = 0; - pc->req_xfer = 0; + memset(pc, 0, sizeof(*pc)); pc->buf = pc->pc_buf; pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE; - pc->idefloppy_callback = &idefloppy_pc_callback; + pc->callback = ide_floppy_callback; } static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc) @@ -374,7 +363,6 @@ static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc) pc->c[0] = GPCMD_REQUEST_SENSE; pc->c[4] = 255; pc->req_xfer = 18; - pc->idefloppy_callback = &idefloppy_request_sense_callback; } /* @@ -397,174 +385,19 @@ static void idefloppy_retry_pc(ide_drive_t *drive) static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive) { idefloppy_floppy_t *floppy = drive->driver_data; - ide_hwif_t *hwif = drive->hwif; - struct ide_atapi_pc *pc = floppy->pc; - struct request *rq = pc->rq; - xfer_func_t *xferfunc; - unsigned int temp; - int dma_error = 0; - u16 bcount; - u8 stat, ireason; - - debug_log("Reached %s interrupt handler\n", __func__); - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - dma_error = hwif->dma_ops->dma_end(drive); - if (dma_error) { - printk(KERN_ERR "%s: DMA %s error\n", drive->name, - rq_data_dir(rq) ? "write" : "read"); - pc->flags |= PC_FLAG_DMA_ERROR; - } else { - pc->xferred = pc->req_xfer; - idefloppy_update_buffers(drive, pc); - } - debug_log("DMA finished\n"); - } - - /* Clear the interrupt */ - stat = ide_read_status(drive); - - /* No more interrupts */ - if ((stat & DRQ_STAT) == 0) { - debug_log("Packet command completed, %d bytes transferred\n", - pc->xferred); - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - - local_irq_enable_in_hardirq(); - - if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) { - /* Error detected */ - debug_log("%s: I/O error\n", drive->name); - rq->errors++; - if (pc->c[0] == GPCMD_REQUEST_SENSE) { - printk(KERN_ERR "ide-floppy: I/O error in " - "request sense command\n"); - return ide_do_reset(drive); - } - /* Retry operation */ - idefloppy_retry_pc(drive); - /* queued, but not started */ - return ide_stopped; - } - pc->error = 0; - if (floppy->failed_pc == pc) - floppy->failed_pc = NULL; - /* Command finished - Call the callback function */ - pc->idefloppy_callback(drive); - return ide_stopped; - } - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - printk(KERN_ERR "ide-floppy: The floppy wants to issue " - "more interrupts in DMA mode\n"); - ide_dma_off(drive); - return ide_do_reset(drive); - } - - /* Get the number of bytes to transfer */ - bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | - hwif->INB(hwif->io_ports.lbam_addr); - /* on this interrupt */ - ireason = hwif->INB(hwif->io_ports.nsect_addr); - - if (ireason & CD) { - printk(KERN_ERR "ide-floppy: CoD != 0 in %s\n", __func__); - return ide_do_reset(drive); - } - if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) { - /* Hopefully, we will never get here */ - printk(KERN_ERR "ide-floppy: We wanted to %s, ", - (ireason & IO) ? "Write" : "Read"); - printk(KERN_ERR "but the floppy wants us to %s !\n", - (ireason & IO) ? "Read" : "Write"); - return ide_do_reset(drive); - } - if (!(pc->flags & PC_FLAG_WRITING)) { - /* Reading - Check that we have enough space */ - temp = pc->xferred + bcount; - if (temp > pc->req_xfer) { - if (temp > pc->buf_size) { - printk(KERN_ERR "ide-floppy: The floppy wants " - "to send us more data than expected " - "- discarding data\n"); - ide_pad_transfer(drive, 0, bcount); - - ide_set_handler(drive, - &idefloppy_pc_intr, - IDEFLOPPY_WAIT_CMD, - NULL); - return ide_started; - } - debug_log("The floppy wants to send us more data than" - " expected - allowing transfer\n"); - } - } - if (pc->flags & PC_FLAG_WRITING) - xferfunc = hwif->output_data; - else - xferfunc = hwif->input_data; - - if (pc->buf) - xferfunc(drive, NULL, pc->cur_pos, bcount); - else - ide_floppy_io_buffers(drive, pc, bcount, - !!(pc->flags & PC_FLAG_WRITING)); - /* Update the current position */ - pc->xferred += bcount; - pc->cur_pos += bcount; - - /* And set the interrupt handler again */ - ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL); - return ide_started; + return ide_pc_intr(drive, floppy->pc, idefloppy_pc_intr, + IDEFLOPPY_WAIT_CMD, NULL, idefloppy_update_buffers, + idefloppy_retry_pc, NULL, ide_floppy_io_buffers); } /* - * This is the original routine that did the packet transfer. - * It fails at high speeds on the Iomega ZIP drive, so there's a slower version - * for that drive below. The algorithm is chosen based on drive type - */ -static ide_startstop_t idefloppy_transfer_pc(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - ide_startstop_t startstop; - idefloppy_floppy_t *floppy = drive->driver_data; - u8 ireason; - - if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) { - printk(KERN_ERR "ide-floppy: Strange, packet command " - "initiated yet DRQ isn't asserted\n"); - return startstop; - } - ireason = hwif->INB(hwif->io_ports.nsect_addr); - if ((ireason & CD) == 0 || (ireason & IO)) { - printk(KERN_ERR "ide-floppy: (IO,CoD) != (0,1) while " - "issuing a packet command\n"); - return ide_do_reset(drive); - } - - /* Set the interrupt routine */ - ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL); - - /* Send the actual packet */ - hwif->output_data(drive, NULL, floppy->pc->c, 12); - - return ide_started; -} - - -/* * What we have here is a classic case of a top half / bottom half interrupt * service routine. In interrupt mode, the device sends an interrupt to signal * that it is ready to receive a packet. However, we need to delay about 2-3 * ticks before issuing the packet or we gets in trouble. - * - * So, follow carefully. transfer_pc1 is called as an interrupt (or directly). - * In either case, when the device says it's ready for a packet, we schedule - * the packet transfer to occur about 2-3 ticks later in transfer_pc2. */ -static int idefloppy_transfer_pc2(ide_drive_t *drive) +static int idefloppy_transfer_pc(ide_drive_t *drive) { idefloppy_floppy_t *floppy = drive->driver_data; @@ -575,24 +408,19 @@ static int idefloppy_transfer_pc2(ide_drive_t *drive) return IDEFLOPPY_WAIT_CMD; } -static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive) + +/* + * Called as an interrupt (or directly). When the device says it's ready for a + * packet, we schedule the packet transfer to occur about 2-3 ticks later in + * transfer_pc. + */ +static ide_startstop_t idefloppy_start_pc_transfer(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; idefloppy_floppy_t *floppy = drive->driver_data; - ide_startstop_t startstop; - u8 ireason; + struct ide_atapi_pc *pc = floppy->pc; + ide_expiry_t *expiry; + unsigned int timeout; - if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) { - printk(KERN_ERR "ide-floppy: Strange, packet command " - "initiated yet DRQ isn't asserted\n"); - return startstop; - } - ireason = hwif->INB(hwif->io_ports.nsect_addr); - if ((ireason & CD) == 0 || (ireason & IO)) { - printk(KERN_ERR "ide-floppy: (IO,CoD) != (0,1) " - "while issuing a packet command\n"); - return ide_do_reset(drive); - } /* * The following delay solves a problem with ATAPI Zip 100 drives * where the Busy flag was apparently being deasserted before the @@ -601,10 +429,15 @@ static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive) * 40 and 50msec work well. idefloppy_pc_intr will not be actually * used until after the packet is moved in about 50 msec. */ + if (pc->flags & PC_FLAG_ZIP_DRIVE) { + timeout = floppy->ticks; + expiry = &idefloppy_transfer_pc; + } else { + timeout = IDEFLOPPY_WAIT_CMD; + expiry = NULL; + } - ide_set_handler(drive, &idefloppy_pc_intr, floppy->ticks, - &idefloppy_transfer_pc2); - return ide_started; + return ide_transfer_pc(drive, pc, idefloppy_pc_intr, timeout, expiry); } static void ide_floppy_report_error(idefloppy_floppy_t *floppy, @@ -627,10 +460,6 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc) { idefloppy_floppy_t *floppy = drive->driver_data; - ide_hwif_t *hwif = drive->hwif; - ide_handler_t *pkt_xfer_routine; - u16 bcount; - u8 dma; if (floppy->failed_pc == NULL && pc->c[0] != GPCMD_REQUEST_SENSE) @@ -645,65 +474,16 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, pc->error = IDEFLOPPY_ERROR_GENERAL; floppy->failed_pc = NULL; - pc->idefloppy_callback(drive); + pc->callback(drive); return ide_stopped; } debug_log("Retry number - %d\n", pc->retries); pc->retries++; - /* We haven't transferred any data yet */ - pc->xferred = 0; - pc->cur_pos = pc->buf; - bcount = min(pc->req_xfer, 63 * 1024); - - if (pc->flags & PC_FLAG_DMA_ERROR) { - pc->flags &= ~PC_FLAG_DMA_ERROR; - ide_dma_off(drive); - } - dma = 0; - - if ((pc->flags & PC_FLAG_DMA_RECOMMENDED) && drive->using_dma) - dma = !hwif->dma_ops->dma_setup(drive); - - ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK | - IDE_TFLAG_OUT_DEVICE, bcount, dma); - if (dma) { - /* Begin DMA, if necessary */ - pc->flags |= PC_FLAG_DMA_IN_PROGRESS; - hwif->dma_ops->dma_start(drive); - } - - /* Can we transfer the packet when we get the interrupt or wait? */ - if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) { - /* wait */ - pkt_xfer_routine = &idefloppy_transfer_pc1; - } else { - /* immediate */ - pkt_xfer_routine = &idefloppy_transfer_pc; - } - - if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) { - /* Issue the packet command */ - ide_execute_command(drive, WIN_PACKETCMD, - pkt_xfer_routine, - IDEFLOPPY_WAIT_CMD, - NULL); - return ide_started; - } else { - /* Issue the packet command */ - ide_execute_pkt_cmd(drive); - return (*pkt_xfer_routine) (drive); - } -} - -static void idefloppy_rw_callback(ide_drive_t *drive) -{ - debug_log("Reached %s\n", __func__); - - idefloppy_end_request(drive, 1, 0); - return; + return ide_issue_pc(drive, pc, idefloppy_start_pc_transfer, + IDEFLOPPY_WAIT_CMD, NULL); } static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent) @@ -778,12 +558,6 @@ static void idefloppy_create_start_stop_cmd(struct ide_atapi_pc *pc, int start) pc->c[4] = start; } -static void idefloppy_create_test_unit_ready_cmd(struct ide_atapi_pc *pc) -{ - idefloppy_init_pc(pc); - pc->c[0] = GPCMD_TEST_UNIT_READY; -} - static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy, struct ide_atapi_pc *pc, struct request *rq, unsigned long sector) @@ -800,21 +574,19 @@ static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy, put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); - pc->idefloppy_callback = &idefloppy_rw_callback; pc->rq = rq; pc->b_count = cmd == READ ? 0 : rq->bio->bi_size; if (rq->cmd_flags & REQ_RW) pc->flags |= PC_FLAG_WRITING; pc->buf = NULL; pc->req_xfer = pc->buf_size = blocks * floppy->block_size; - pc->flags |= PC_FLAG_DMA_RECOMMENDED; + pc->flags |= PC_FLAG_DMA_OK; } static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, struct ide_atapi_pc *pc, struct request *rq) { idefloppy_init_pc(pc); - pc->idefloppy_callback = &idefloppy_rw_callback; memcpy(pc->c, rq->cmd, sizeof(pc->c)); pc->rq = rq; pc->b_count = rq->data_len; @@ -822,7 +594,7 @@ static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, pc->flags |= PC_FLAG_WRITING; pc->buf = rq->data; if (rq->bio) - pc->flags |= PC_FLAG_DMA_RECOMMENDED; + pc->flags |= PC_FLAG_DMA_OK; /* * possibly problematic, doesn't look like ide-floppy correctly * handled scattered requests if dma fails... @@ -875,7 +647,14 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, return ide_stopped; } + if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) + pc->flags |= PC_FLAG_DRQ_INTERRUPT; + + if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) + pc->flags |= PC_FLAG_ZIP_DRIVE; + pc->rq = rq; + return idefloppy_issue_pc(drive, pc); } @@ -886,14 +665,16 @@ static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, static int idefloppy_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc) { struct ide_floppy_obj *floppy = drive->driver_data; - struct request rq; + struct request *rq; + int error; - ide_init_drive_cmd(&rq); - rq.buffer = (char *) pc; - rq.cmd_type = REQ_TYPE_SPECIAL; - rq.rq_disk = floppy->disk; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->buffer = (char *) pc; + rq->cmd_type = REQ_TYPE_SPECIAL; + error = blk_execute_rq(drive->queue, floppy->disk, rq, 0); + blk_put_request(rq); - return ide_do_drive_cmd(drive, &rq, ide_wait); + return error; } /* @@ -921,10 +702,10 @@ static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive) set_disk_ro(floppy->disk, floppy->wp); page = &pc.buf[8]; - transfer_rate = be16_to_cpu(*(u16 *)&pc.buf[8 + 2]); - sector_size = be16_to_cpu(*(u16 *)&pc.buf[8 + 6]); - cyls = be16_to_cpu(*(u16 *)&pc.buf[8 + 8]); - rpm = be16_to_cpu(*(u16 *)&pc.buf[8 + 28]); + transfer_rate = be16_to_cpup((__be16 *)&pc.buf[8 + 2]); + sector_size = be16_to_cpup((__be16 *)&pc.buf[8 + 6]); + cyls = be16_to_cpup((__be16 *)&pc.buf[8 + 8]); + rpm = be16_to_cpup((__be16 *)&pc.buf[8 + 28]); heads = pc.buf[8 + 4]; sectors = pc.buf[8 + 5]; @@ -999,8 +780,8 @@ static int ide_floppy_get_capacity(ide_drive_t *drive) for (i = 0; i < desc_cnt; i++) { unsigned int desc_start = 4 + i*8; - blocks = be32_to_cpu(*(u32 *)&pc.buf[desc_start]); - length = be16_to_cpu(*(u16 *)&pc.buf[desc_start + 6]); + blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]); + length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]); debug_log("Descriptor %d: %dkB, %d blocks, %d sector size\n", i, blocks * length / 1024, blocks, length); @@ -1121,8 +902,8 @@ static int ide_floppy_get_format_capacities(ide_drive_t *drive, int __user *arg) if (u_index >= u_array_size) break; /* User-supplied buffer too small */ - blocks = be32_to_cpu(*(u32 *)&pc.buf[desc_start]); - length = be16_to_cpu(*(u16 *)&pc.buf[desc_start + 6]); + blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]); + length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]); if (put_user(blocks, argp)) return(-EFAULT); @@ -1376,7 +1157,9 @@ static int idefloppy_open(struct inode *inode, struct file *filp) floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; /* Just in case */ - idefloppy_create_test_unit_ready_cmd(&pc); + idefloppy_init_pc(&pc); + pc.c[0] = GPCMD_TEST_UNIT_READY; + if (idefloppy_queue_pc_tail(drive, &pc)) { idefloppy_create_start_stop_cmd(&pc, 1); (void) idefloppy_queue_pc_tail(drive, &pc); @@ -1622,11 +1405,6 @@ static int ide_floppy_probe(ide_drive_t *drive) " of ide-floppy\n", drive->name); goto failed; } - if (drive->scsi) { - printk(KERN_INFO "ide-floppy: passing drive %s to ide-scsi" - " emulation.\n", drive->name); - goto failed; - } floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL); if (!floppy) { printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy" diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 696525342e9a..28057747c1f8 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -358,31 +358,6 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err) EXPORT_SYMBOL(ide_end_drive_cmd); -/** - * try_to_flush_leftover_data - flush junk - * @drive: drive to flush - * - * try_to_flush_leftover_data() is invoked in response to a drive - * unexpectedly having its DRQ_STAT bit set. As an alternative to - * resetting the drive, this routine tries to clear the condition - * by read a sector's worth of data from the drive. Of course, - * this may not help if the drive is *waiting* for data from *us*. - */ -static void try_to_flush_leftover_data (ide_drive_t *drive) -{ - int i = (drive->mult_count ? drive->mult_count : 1) * SECTOR_WORDS; - - if (drive->media != ide_disk) - return; - while (i > 0) { - u32 buffer[16]; - u32 wcount = (i > 16) ? 16 : i; - - i -= wcount; - drive->hwif->input_data(drive, NULL, buffer, wcount * 4); - } -} - static void ide_kill_rq(ide_drive_t *drive, struct request *rq) { if (rq->rq_disk) { @@ -422,8 +397,11 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8 } if ((stat & DRQ_STAT) && rq_data_dir(rq) == READ && - (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) - try_to_flush_leftover_data(drive); + (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) { + int nsect = drive->mult_count ? drive->mult_count : 1; + + ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE); + } if (rq->errors >= ERROR_MAX || blk_noretry_request(rq)) { ide_kill_rq(drive, rq); @@ -459,7 +437,7 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->OUTBSYNC(drive, WIN_IDLEIMMEDIATE, + hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE, hwif->io_ports.command_addr); if (rq->errors >= ERROR_MAX) { @@ -1539,88 +1517,30 @@ irqreturn_t ide_intr (int irq, void *dev_id) } /** - * ide_init_drive_cmd - initialize a drive command request - * @rq: request object - * - * Initialize a request before we fill it in and send it down to - * ide_do_drive_cmd. Commands must be set up by this function. Right - * now it doesn't do a lot, but if that changes abusers will have a - * nasty surprise. - */ - -void ide_init_drive_cmd (struct request *rq) -{ - blk_rq_init(NULL, rq); -} - -EXPORT_SYMBOL(ide_init_drive_cmd); - -/** * ide_do_drive_cmd - issue IDE special command * @drive: device to issue command * @rq: request to issue - * @action: action for processing * * This function issues a special IDE device request * onto the request queue. * - * If action is ide_wait, then the rq is queued at the end of the - * request queue, and the function sleeps until it has been processed. - * This is for use when invoked from an ioctl handler. - * - * If action is ide_preempt, then the rq is queued at the head of - * the request queue, displacing the currently-being-processed - * request and this function returns immediately without waiting - * for the new rq to be completed. This is VERY DANGEROUS, and is - * intended for careful use by the ATAPI tape/cdrom driver code. - * - * If action is ide_end, then the rq is queued at the end of the - * request queue, and the function returns immediately without waiting - * for the new rq to be completed. This is again intended for careful - * use by the ATAPI tape/cdrom driver code. + * the rq is queued at the head of the request queue, displacing + * the currently-being-processed request and this function + * returns immediately without waiting for the new rq to be + * completed. This is VERY DANGEROUS, and is intended for + * careful use by the ATAPI tape/cdrom driver code. */ - -int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t action) + +void ide_do_drive_cmd(ide_drive_t *drive, struct request *rq) { unsigned long flags; ide_hwgroup_t *hwgroup = HWGROUP(drive); - DECLARE_COMPLETION_ONSTACK(wait); - int where = ELEVATOR_INSERT_BACK, err; - int must_wait = (action == ide_wait || action == ide_head_wait); - - rq->errors = 0; - - /* - * we need to hold an extra reference to request for safe inspection - * after completion - */ - if (must_wait) { - rq->ref_count++; - rq->end_io_data = &wait; - rq->end_io = blk_end_sync_rq; - } spin_lock_irqsave(&ide_lock, flags); - if (action == ide_preempt) - hwgroup->rq = NULL; - if (action == ide_preempt || action == ide_head_wait) { - where = ELEVATOR_INSERT_FRONT; - rq->cmd_flags |= REQ_PREEMPT; - } - __elv_add_request(drive->queue, rq, where, 0); - ide_do_request(hwgroup, IDE_NO_IRQ); + hwgroup->rq = NULL; + __elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 1); + __generic_unplug_device(drive->queue); spin_unlock_irqrestore(&ide_lock, flags); - - err = 0; - if (must_wait) { - wait_for_completion(&wait); - if (rq->errors) - err = -EIO; - - blk_put_request(rq); - } - - return err; } EXPORT_SYMBOL(ide_do_drive_cmd); @@ -1637,6 +1557,8 @@ void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma) task.tf.lbah = (bcount >> 8) & 0xff; ide_tf_dump(drive->name, &task.tf); + ide_set_irq(drive, 1); + SELECT_MASK(drive, 0); drive->hwif->tf_load(drive, &task); } diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 0daf923541ff..66e39e56a3fb 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -42,7 +42,7 @@ static void ide_outb (u8 val, unsigned long port) outb(val, port); } -static void ide_outbsync (ide_drive_t *drive, u8 addr, unsigned long port) +static void ide_outbsync(ide_hwif_t *hwif, u8 addr, unsigned long port) { outb(addr, port); } @@ -68,7 +68,7 @@ static void ide_mm_outb (u8 value, unsigned long port) writeb(value, (void __iomem *) port); } -static void ide_mm_outbsync (ide_drive_t *drive, u8 value, unsigned long port) +static void ide_mm_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port) { writeb(value, (void __iomem *) port); } @@ -95,7 +95,7 @@ void SELECT_DRIVE (ide_drive_t *drive) hwif->OUTB(drive->select.all, hwif->io_ports.device_addr); } -static void SELECT_MASK(ide_drive_t *drive, int mask) +void SELECT_MASK(ide_drive_t *drive, int mask) { const struct ide_port_ops *port_ops = drive->hwif->port_ops; @@ -120,11 +120,6 @@ static void ide_tf_load(ide_drive_t *drive, ide_task_t *task) if (task->tf_flags & IDE_TFLAG_FLAGGED) HIHI = 0xFF; - ide_set_irq(drive, 1); - - if ((task->tf_flags & IDE_TFLAG_NO_SELECT_MASK) == 0) - SELECT_MASK(drive, 0); - if (task->tf_flags & IDE_TFLAG_OUT_DATA) { u16 data = (tf->hob_data << 8) | tf->data; @@ -191,7 +186,7 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task) } /* be sure we're looking at the low order bits */ - tf_outb(drive->ctl & ~0x80, io_ports->ctl_addr); + tf_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = tf_inb(io_ports->nsect_addr); @@ -205,7 +200,7 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task) tf->device = tf_inb(io_ports->device_addr); if (task->tf_flags & IDE_TFLAG_LBA48) { - tf_outb(drive->ctl | 0x80, io_ports->ctl_addr); + tf_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) tf->hob_feature = tf_inb(io_ports->feature_addr); @@ -691,7 +686,7 @@ int ide_driveid_update(ide_drive_t *drive) SELECT_MASK(drive, 1); ide_set_irq(drive, 1); msleep(50); - hwif->OUTBSYNC(drive, WIN_IDENTIFY, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, WIN_IDENTIFY, hwif->io_ports.command_addr); timeout = jiffies + WAIT_WORSTCASE; do { if (time_after(jiffies, timeout)) { @@ -744,9 +739,6 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) int error = 0; u8 stat; -// while (HWGROUP(drive)->busy) -// msleep(50); - #ifdef CONFIG_BLK_DEV_IDEDMA if (hwif->dma_ops) /* check if host supports DMA */ hwif->dma_ops->dma_host_set(drive, 0); @@ -781,7 +773,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed) ide_set_irq(drive, 0); hwif->OUTB(speed, io_ports->nsect_addr); hwif->OUTB(SETFEATURES_XFER, io_ports->feature_addr); - hwif->OUTBSYNC(drive, WIN_SETFEATURES, io_ports->command_addr); + hwif->OUTBSYNC(hwif, WIN_SETFEATURES, io_ports->command_addr); if (drive->quirk_list == 2) ide_set_irq(drive, 1); @@ -889,7 +881,7 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler, spin_lock_irqsave(&ide_lock, flags); __ide_set_handler(drive, handler, timeout, expiry); - hwif->OUTBSYNC(drive, cmd, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr); /* * Drive takes 400nS to respond, we must avoid the IRQ being * serviced before that. @@ -907,7 +899,7 @@ void ide_execute_pkt_cmd(ide_drive_t *drive) unsigned long flags; spin_lock_irqsave(&ide_lock, flags); - hwif->OUTBSYNC(drive, WIN_PACKETCMD, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, WIN_PACKETCMD, hwif->io_ports.command_addr); ndelay(400); spin_unlock_irqrestore(&ide_lock, flags); } @@ -1102,7 +1094,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) pre_reset(drive); SELECT_DRIVE(drive); udelay (20); - hwif->OUTBSYNC(drive, WIN_SRST, io_ports->command_addr); + hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr); ndelay(400); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; hwgroup->polling = 1; @@ -1133,14 +1125,14 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi) * recover from reset very quickly, saving us the first 50ms wait time. */ /* set SRST and nIEN */ - hwif->OUTBSYNC(drive, drive->ctl|6, io_ports->ctl_addr); + hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | 6, io_ports->ctl_addr); /* more than enough time */ udelay(10); if (drive->quirk_list == 2) - ctl = drive->ctl; /* clear SRST and nIEN */ + ctl = ATA_DEVCTL_OBS; /* clear SRST and nIEN */ else - ctl = drive->ctl | 2; /* clear SRST, leave nIEN */ - hwif->OUTBSYNC(drive, ctl, io_ports->ctl_addr); + ctl = ATA_DEVCTL_OBS | 2; /* clear SRST, leave nIEN */ + hwif->OUTBSYNC(hwif, ctl, io_ports->ctl_addr); /* more than enough time */ udelay(10); hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE; diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index 47af80df6872..13af72f09ec4 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -1,26 +1,11 @@ -#include <linux/module.h> #include <linux/types.h> #include <linux/string.h> #include <linux/kernel.h> -#include <linux/timer.h> -#include <linux/mm.h> #include <linux/interrupt.h> -#include <linux/major.h> -#include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/blkpg.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/delay.h> #include <linux/hdreg.h> #include <linux/ide.h> #include <linux/bitops.h> -#include <asm/byteorder.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/io.h> - static const char *udma_str[] = { "UDMA/16", "UDMA/25", "UDMA/33", "UDMA/44", "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" }; @@ -90,142 +75,6 @@ static u8 ide_rate_filter(ide_drive_t *drive, u8 speed) return min(speed, mode); } -/* - * Standard (generic) timings for PIO modes, from ATA2 specification. - * These timings are for access to the IDE data port register *only*. - * Some drives may specify a mode, while also specifying a different - * value for cycle_time (from drive identification data). - */ -const ide_pio_timings_t ide_pio_timings[6] = { - { 70, 165, 600 }, /* PIO Mode 0 */ - { 50, 125, 383 }, /* PIO Mode 1 */ - { 30, 100, 240 }, /* PIO Mode 2 */ - { 30, 80, 180 }, /* PIO Mode 3 with IORDY */ - { 25, 70, 120 }, /* PIO Mode 4 with IORDY */ - { 20, 50, 100 } /* PIO Mode 5 with IORDY (nonstandard) */ -}; - -EXPORT_SYMBOL_GPL(ide_pio_timings); - -/* - * Shared data/functions for determining best PIO mode for an IDE drive. - * Most of this stuff originally lived in cmd640.c, and changes to the - * ide_pio_blacklist[] table should be made with EXTREME CAUTION to avoid - * breaking the fragile cmd640.c support. - */ - -/* - * Black list. Some drives incorrectly report their maximal PIO mode, - * at least in respect to CMD640. Here we keep info on some known drives. - */ -static struct ide_pio_info { - const char *name; - int pio; -} ide_pio_blacklist [] = { - { "Conner Peripherals 540MB - CFS540A", 3 }, - - { "WDC AC2700", 3 }, - { "WDC AC2540", 3 }, - { "WDC AC2420", 3 }, - { "WDC AC2340", 3 }, - { "WDC AC2250", 0 }, - { "WDC AC2200", 0 }, - { "WDC AC21200", 4 }, - { "WDC AC2120", 0 }, - { "WDC AC2850", 3 }, - { "WDC AC1270", 3 }, - { "WDC AC1170", 1 }, - { "WDC AC1210", 1 }, - { "WDC AC280", 0 }, - { "WDC AC31000", 3 }, - { "WDC AC31200", 3 }, - - { "Maxtor 7131 AT", 1 }, - { "Maxtor 7171 AT", 1 }, - { "Maxtor 7213 AT", 1 }, - { "Maxtor 7245 AT", 1 }, - { "Maxtor 7345 AT", 1 }, - { "Maxtor 7546 AT", 3 }, - { "Maxtor 7540 AV", 3 }, - - { "SAMSUNG SHD-3121A", 1 }, - { "SAMSUNG SHD-3122A", 1 }, - { "SAMSUNG SHD-3172A", 1 }, - - { "ST5660A", 3 }, - { "ST3660A", 3 }, - { "ST3630A", 3 }, - { "ST3655A", 3 }, - { "ST3391A", 3 }, - { "ST3390A", 1 }, - { "ST3600A", 1 }, - { "ST3290A", 0 }, - { "ST3144A", 0 }, - { "ST3491A", 1 }, /* reports 3, should be 1 or 2 (depending on */ - /* drive) according to Seagates FIND-ATA program */ - - { "QUANTUM ELS127A", 0 }, - { "QUANTUM ELS170A", 0 }, - { "QUANTUM LPS240A", 0 }, - { "QUANTUM LPS210A", 3 }, - { "QUANTUM LPS270A", 3 }, - { "QUANTUM LPS365A", 3 }, - { "QUANTUM LPS540A", 3 }, - { "QUANTUM LIGHTNING 540A", 3 }, - { "QUANTUM LIGHTNING 730A", 3 }, - - { "QUANTUM FIREBALL_540", 3 }, /* Older Quantum Fireballs don't work */ - { "QUANTUM FIREBALL_640", 3 }, - { "QUANTUM FIREBALL_1080", 3 }, - { "QUANTUM FIREBALL_1280", 3 }, - { NULL, 0 } -}; - -/** - * ide_scan_pio_blacklist - check for a blacklisted drive - * @model: Drive model string - * - * This routine searches the ide_pio_blacklist for an entry - * matching the start/whole of the supplied model name. - * - * Returns -1 if no match found. - * Otherwise returns the recommended PIO mode from ide_pio_blacklist[]. - */ - -static int ide_scan_pio_blacklist (char *model) -{ - struct ide_pio_info *p; - - for (p = ide_pio_blacklist; p->name != NULL; p++) { - if (strncmp(p->name, model, strlen(p->name)) == 0) - return p->pio; - } - return -1; -} - -unsigned int ide_pio_cycle_time(ide_drive_t *drive, u8 pio) -{ - struct hd_driveid *id = drive->id; - int cycle_time = 0; - - if (id->field_valid & 2) { - if (id->capability & 8) - cycle_time = id->eide_pio_iordy; - else - cycle_time = id->eide_pio; - } - - /* conservative "downgrade" for all pre-ATA2 drives */ - if (pio < 3) { - if (cycle_time && cycle_time < ide_pio_timings[pio].cycle_time) - cycle_time = 0; /* use standard timing */ - } - - return cycle_time ? cycle_time : ide_pio_timings[pio].cycle_time; -} - -EXPORT_SYMBOL_GPL(ide_pio_cycle_time); - /** * ide_get_best_pio_mode - get PIO mode from drive * @drive: drive to consider diff --git a/drivers/ide/ide-pio-blacklist.c b/drivers/ide/ide-pio-blacklist.c new file mode 100644 index 000000000000..a8c2c8f8660a --- /dev/null +++ b/drivers/ide/ide-pio-blacklist.c @@ -0,0 +1,94 @@ +/* + * PIO blacklist. Some drives incorrectly report their maximal PIO mode, + * at least in respect to CMD640. Here we keep info on some known drives. + * + * Changes to the ide_pio_blacklist[] should be made with EXTREME CAUTION + * to avoid breaking the fragile cmd640.c support. + */ + +#include <linux/string.h> + +static struct ide_pio_info { + const char *name; + int pio; +} ide_pio_blacklist [] = { + { "Conner Peripherals 540MB - CFS540A", 3 }, + + { "WDC AC2700", 3 }, + { "WDC AC2540", 3 }, + { "WDC AC2420", 3 }, + { "WDC AC2340", 3 }, + { "WDC AC2250", 0 }, + { "WDC AC2200", 0 }, + { "WDC AC21200", 4 }, + { "WDC AC2120", 0 }, + { "WDC AC2850", 3 }, + { "WDC AC1270", 3 }, + { "WDC AC1170", 1 }, + { "WDC AC1210", 1 }, + { "WDC AC280", 0 }, + { "WDC AC31000", 3 }, + { "WDC AC31200", 3 }, + + { "Maxtor 7131 AT", 1 }, + { "Maxtor 7171 AT", 1 }, + { "Maxtor 7213 AT", 1 }, + { "Maxtor 7245 AT", 1 }, + { "Maxtor 7345 AT", 1 }, + { "Maxtor 7546 AT", 3 }, + { "Maxtor 7540 AV", 3 }, + + { "SAMSUNG SHD-3121A", 1 }, + { "SAMSUNG SHD-3122A", 1 }, + { "SAMSUNG SHD-3172A", 1 }, + + { "ST5660A", 3 }, + { "ST3660A", 3 }, + { "ST3630A", 3 }, + { "ST3655A", 3 }, + { "ST3391A", 3 }, + { "ST3390A", 1 }, + { "ST3600A", 1 }, + { "ST3290A", 0 }, + { "ST3144A", 0 }, + { "ST3491A", 1 }, /* reports 3, should be 1 or 2 (depending on drive) + according to Seagate's FIND-ATA program */ + + { "QUANTUM ELS127A", 0 }, + { "QUANTUM ELS170A", 0 }, + { "QUANTUM LPS240A", 0 }, + { "QUANTUM LPS210A", 3 }, + { "QUANTUM LPS270A", 3 }, + { "QUANTUM LPS365A", 3 }, + { "QUANTUM LPS540A", 3 }, + { "QUANTUM LIGHTNING 540A", 3 }, + { "QUANTUM LIGHTNING 730A", 3 }, + + { "QUANTUM FIREBALL_540", 3 }, /* Older Quantum Fireballs don't work */ + { "QUANTUM FIREBALL_640", 3 }, + { "QUANTUM FIREBALL_1080", 3 }, + { "QUANTUM FIREBALL_1280", 3 }, + { NULL, 0 } +}; + +/** + * ide_scan_pio_blacklist - check for a blacklisted drive + * @model: Drive model string + * + * This routine searches the ide_pio_blacklist for an entry + * matching the start/whole of the supplied model name. + * + * Returns -1 if no match found. + * Otherwise returns the recommended PIO mode from ide_pio_blacklist[]. + */ + +int ide_scan_pio_blacklist(char *model) +{ + struct ide_pio_info *p; + + for (p = ide_pio_blacklist; p->name != NULL; p++) { + if (strncmp(p->name, model, strlen(p->name)) == 0) + return p->pio; + } + return -1; +} diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c index adbd01784162..03f2ef5470a3 100644 --- a/drivers/ide/ide-pnp.c +++ b/drivers/ide/ide-pnp.c @@ -33,6 +33,8 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) ide_hwif_t *hwif; unsigned long base, ctl; + printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n"); + if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0))) return -1; @@ -62,10 +64,8 @@ static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) u8 index = hwif->index; u8 idx[4] = { index, 0xff, 0xff, 0xff }; - ide_init_port_data(hwif, index); ide_init_port_hw(hwif, &hw); - printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index); pnp_set_drvdata(dev, hwif); ide_device_add(idx, NULL); diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 380fa0c8cc84..08a3531ec088 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -39,6 +39,8 @@ #include <asm/uaccess.h> #include <asm/io.h> +static ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ + /** * generic_id - add a generic drive id * @drive: drive to make an ID block for @@ -293,7 +295,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) hwif->OUTB(0, io_ports->feature_addr); /* ask drive for ID */ - hwif->OUTBSYNC(drive, cmd, io_ports->command_addr); + hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr); timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2; timeout += jiffies; @@ -478,9 +480,9 @@ static int do_probe (ide_drive_t *drive, u8 cmd) printk(KERN_ERR "%s: no response (status = 0x%02x), " "resetting drive\n", drive->name, stat); msleep(50); - hwif->OUTB(drive->select.all, io_ports->device_addr); + SELECT_DRIVE(drive); msleep(50); - hwif->OUTBSYNC(drive, WIN_SRST, io_ports->command_addr); + hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr); (void)ide_busy_sleep(hwif); rc = try_to_identify(drive, cmd); } @@ -516,7 +518,7 @@ static void enable_nest (ide_drive_t *drive) printk("%s: enabling %s -- ", hwif->name, drive->id->model); SELECT_DRIVE(drive); msleep(50); - hwif->OUTBSYNC(drive, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr); if (ide_busy_sleep(hwif)) { printk(KERN_CONT "failed (timeout)\n"); @@ -1067,7 +1069,7 @@ static int init_irq (ide_hwif_t *hwif) if (io_ports->ctl_addr) /* clear nIEN */ - hwif->OUTB(0x08, io_ports->ctl_addr); + hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS, io_ports->ctl_addr); if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup)) goto out_unlink; @@ -1324,10 +1326,10 @@ static void ide_port_init_devices(ide_hwif_t *hwif) drive->unmask = 1; if (hwif->host_flags & IDE_HFLAG_NO_UNMASK_IRQS) drive->no_unmask = 1; - } - if (port_ops && port_ops->port_init_devs) - port_ops->port_init_devs(hwif); + if (port_ops && port_ops->init_dev) + port_ops->init_dev(drive); + } } static void ide_init_port(ide_hwif_t *hwif, unsigned int port, @@ -1479,22 +1481,29 @@ ide_hwif_t *ide_find_port_slot(const struct ide_port_info *d) for (; i < MAX_HWIFS; i++) { hwif = &ide_hwifs[i]; if (hwif->chipset == ide_unknown) - return hwif; + goto out_found; } } else { for (i = 2; i < MAX_HWIFS; i++) { hwif = &ide_hwifs[i]; if (hwif->chipset == ide_unknown) - return hwif; + goto out_found; } for (i = 0; i < 2 && i < MAX_HWIFS; i++) { hwif = &ide_hwifs[i]; if (hwif->chipset == ide_unknown) - return hwif; + goto out_found; } } + printk(KERN_ERR "%s: no free slot for interface\n", + d ? d->name : "ide"); + return NULL; + +out_found: + ide_init_port_data(hwif, i); + return hwif; } EXPORT_SYMBOL_GPL(ide_find_port_slot); diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 1e1f26331a24..6b3a1ce60e55 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -144,9 +144,6 @@ enum { /*************************** End of tunable parameters ***********************/ -/* Read/Write error simulation */ -#define SIMULATE_ERRORS 0 - /* tape directions */ enum { IDETAPE_DIR_NONE = (1 << 0), @@ -442,7 +439,7 @@ static void idetape_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, } } -static void idetape_update_buffers(struct ide_atapi_pc *pc) +static void idetape_update_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc) { struct idetape_bh *bh = pc->bh; int count; @@ -506,18 +503,6 @@ static struct request *idetape_next_rq_storage(ide_drive_t *drive) return (&tape->rq_stack[tape->rq_stack_index++]); } -static void idetape_init_pc(struct ide_atapi_pc *pc) -{ - memset(pc->c, 0, 12); - pc->retries = 0; - pc->flags = 0; - pc->req_xfer = 0; - pc->buf = pc->pc_buf; - pc->buf_size = IDETAPE_PC_BUFFER_SIZE; - pc->bh = NULL; - pc->b_data = NULL; -} - /* * called on each failed packet command retry to analyze the request sense. We * currently do not utilize this information. @@ -538,8 +523,8 @@ static void idetape_analyze_error(ide_drive_t *drive, u8 *sense) if (pc->flags & PC_FLAG_DMA_ERROR) { pc->xferred = pc->req_xfer - tape->blk_size * - be32_to_cpu(get_unaligned((u32 *)&sense[3])); - idetape_update_buffers(pc); + get_unaligned_be32(&sense[3]); + idetape_update_buffers(drive, pc); } /* @@ -634,21 +619,78 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects) return 0; } -static ide_startstop_t idetape_request_sense_callback(ide_drive_t *drive) +static void ide_tape_callback(ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; + struct ide_atapi_pc *pc = tape->pc; + int uptodate = pc->error ? 0 : 1; debug_log(DBG_PROCS, "Enter %s\n", __func__); - if (!tape->pc->error) { - idetape_analyze_error(drive, tape->pc->buf); - idetape_end_request(drive, 1, 0); - } else { - printk(KERN_ERR "ide-tape: Error in REQUEST SENSE itself - " - "Aborting request!\n"); - idetape_end_request(drive, 0, 0); + if (tape->failed_pc == pc) + tape->failed_pc = NULL; + + if (pc->c[0] == REQUEST_SENSE) { + if (uptodate) + idetape_analyze_error(drive, pc->buf); + else + printk(KERN_ERR "ide-tape: Error in REQUEST SENSE " + "itself - Aborting request!\n"); + } else if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) { + struct request *rq = drive->hwif->hwgroup->rq; + int blocks = pc->xferred / tape->blk_size; + + tape->avg_size += blocks * tape->blk_size; + + if (time_after_eq(jiffies, tape->avg_time + HZ)) { + tape->avg_speed = tape->avg_size * HZ / + (jiffies - tape->avg_time) / 1024; + tape->avg_size = 0; + tape->avg_time = jiffies; + } + + tape->first_frame += blocks; + rq->current_nr_sectors -= blocks; + + if (pc->error) + uptodate = pc->error; + } else if (pc->c[0] == READ_POSITION && uptodate) { + u8 *readpos = tape->pc->buf; + + debug_log(DBG_SENSE, "BOP - %s\n", + (readpos[0] & 0x80) ? "Yes" : "No"); + debug_log(DBG_SENSE, "EOP - %s\n", + (readpos[0] & 0x40) ? "Yes" : "No"); + + if (readpos[0] & 0x4) { + printk(KERN_INFO "ide-tape: Block location is unknown" + "to the tape\n"); + clear_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags); + uptodate = 0; + } else { + debug_log(DBG_SENSE, "Block Location - %u\n", + be32_to_cpu(*(u32 *)&readpos[4])); + + tape->partition = readpos[1]; + tape->first_frame = be32_to_cpu(*(u32 *)&readpos[4]); + set_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags); + } } - return ide_stopped; + + idetape_end_request(drive, uptodate, 0); +} + +static void idetape_init_pc(struct ide_atapi_pc *pc) +{ + memset(pc->c, 0, 12); + pc->retries = 0; + pc->flags = 0; + pc->req_xfer = 0; + pc->buf = pc->pc_buf; + pc->buf_size = IDETAPE_PC_BUFFER_SIZE; + pc->bh = NULL; + pc->b_data = NULL; + pc->callback = ide_tape_callback; } static void idetape_create_request_sense_cmd(struct ide_atapi_pc *pc) @@ -657,7 +699,6 @@ static void idetape_create_request_sense_cmd(struct ide_atapi_pc *pc) pc->c[0] = REQUEST_SENSE; pc->c[4] = 20; pc->req_xfer = 20; - pc->idetape_callback = &idetape_request_sense_callback; } static void idetape_init_rq(struct request *rq, u8 cmd) @@ -688,9 +729,10 @@ static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, struct ide_tape_obj *tape = drive->driver_data; idetape_init_rq(rq, REQ_IDETAPE_PC1); + rq->cmd_flags |= REQ_PREEMPT; rq->buffer = (char *) pc; rq->rq_disk = tape->disk; - (void) ide_do_drive_cmd(drive, rq, ide_preempt); + ide_do_drive_cmd(drive, rq); } /* @@ -698,7 +740,7 @@ static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, * last packet command. We queue a request sense packet command in * the head of the request list. */ -static ide_startstop_t idetape_retry_pc (ide_drive_t *drive) +static void idetape_retry_pc(ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; struct ide_atapi_pc *pc; @@ -710,7 +752,6 @@ static ide_startstop_t idetape_retry_pc (ide_drive_t *drive) idetape_create_request_sense_cmd(pc); set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags); idetape_queue_pc_head(drive, pc, rq); - return ide_stopped; } /* @@ -727,7 +768,26 @@ static void idetape_postpone_request(ide_drive_t *drive) ide_stall_queue(drive, tape->dsc_poll_freq); } -typedef void idetape_io_buf(ide_drive_t *, struct ide_atapi_pc *, unsigned int); +static void ide_tape_handle_dsc(ide_drive_t *drive) +{ + idetape_tape_t *tape = drive->driver_data; + + /* Media access command */ + tape->dsc_polling_start = jiffies; + tape->dsc_poll_freq = IDETAPE_DSC_MA_FAST; + tape->dsc_timeout = jiffies + IDETAPE_DSC_MA_TIMEOUT; + /* Allow ide.c to handle other requests */ + idetape_postpone_request(drive); +} + +static void ide_tape_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, + unsigned int bcount, int write) +{ + if (write) + idetape_output_buffers(drive, pc, bcount); + else + idetape_input_buffers(drive, pc, bcount); +} /* * This is the usual interrupt handler which will be called during a packet @@ -738,169 +798,11 @@ typedef void idetape_io_buf(ide_drive_t *, struct ide_atapi_pc *, unsigned int); */ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = tape->pc; - xfer_func_t *xferfunc; - idetape_io_buf *iobuf; - unsigned int temp; -#if SIMULATE_ERRORS - static int error_sim_count; -#endif - u16 bcount; - u8 stat, ireason; - - debug_log(DBG_PROCS, "Enter %s - interrupt handler\n", __func__); - - /* Clear the interrupt */ - stat = ide_read_status(drive); - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - if (hwif->dma_ops->dma_end(drive) || (stat & ERR_STAT)) { - /* - * A DMA error is sometimes expected. For example, - * if the tape is crossing a filemark during a - * READ command, it will issue an irq and position - * itself before the filemark, so that only a partial - * data transfer will occur (which causes the DMA - * error). In that case, we will later ask the tape - * how much bytes of the original request were - * actually transferred (we can't receive that - * information from the DMA engine on most chipsets). - */ - - /* - * On the contrary, a DMA error is never expected; - * it usually indicates a hardware error or abort. - * If the tape crosses a filemark during a READ - * command, it will issue an irq and position itself - * after the filemark (not before). Only a partial - * data transfer will occur, but no DMA error. - * (AS, 19 Apr 2001) - */ - pc->flags |= PC_FLAG_DMA_ERROR; - } else { - pc->xferred = pc->req_xfer; - idetape_update_buffers(pc); - } - debug_log(DBG_PROCS, "DMA finished\n"); - - } - - /* No more interrupts */ - if ((stat & DRQ_STAT) == 0) { - debug_log(DBG_SENSE, "Packet command completed, %d bytes" - " transferred\n", pc->xferred); - - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - local_irq_enable(); - -#if SIMULATE_ERRORS - if ((pc->c[0] == WRITE_6 || pc->c[0] == READ_6) && - (++error_sim_count % 100) == 0) { - printk(KERN_INFO "ide-tape: %s: simulating error\n", - tape->name); - stat |= ERR_STAT; - } -#endif - if ((stat & ERR_STAT) && pc->c[0] == REQUEST_SENSE) - stat &= ~ERR_STAT; - if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) { - /* Error detected */ - debug_log(DBG_ERR, "%s: I/O error\n", tape->name); - - if (pc->c[0] == REQUEST_SENSE) { - printk(KERN_ERR "ide-tape: I/O error in request" - " sense command\n"); - return ide_do_reset(drive); - } - debug_log(DBG_ERR, "[cmd %x]: check condition\n", - pc->c[0]); - - /* Retry operation */ - return idetape_retry_pc(drive); - } - pc->error = 0; - if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) && - (stat & SEEK_STAT) == 0) { - /* Media access command */ - tape->dsc_polling_start = jiffies; - tape->dsc_poll_freq = IDETAPE_DSC_MA_FAST; - tape->dsc_timeout = jiffies + IDETAPE_DSC_MA_TIMEOUT; - /* Allow ide.c to handle other requests */ - idetape_postpone_request(drive); - return ide_stopped; - } - if (tape->failed_pc == pc) - tape->failed_pc = NULL; - /* Command finished - Call the callback function */ - return pc->idetape_callback(drive); - } - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - printk(KERN_ERR "ide-tape: The tape wants to issue more " - "interrupts in DMA mode\n"); - printk(KERN_ERR "ide-tape: DMA disabled, reverting to PIO\n"); - ide_dma_off(drive); - return ide_do_reset(drive); - } - /* Get the number of bytes to transfer on this interrupt. */ - bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | - hwif->INB(hwif->io_ports.lbam_addr); - - ireason = hwif->INB(hwif->io_ports.nsect_addr); - - if (ireason & CD) { - printk(KERN_ERR "ide-tape: CoD != 0 in %s\n", __func__); - return ide_do_reset(drive); - } - if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) { - /* Hopefully, we will never get here */ - printk(KERN_ERR "ide-tape: We wanted to %s, ", - (ireason & IO) ? "Write" : "Read"); - printk(KERN_ERR "ide-tape: but the tape wants us to %s !\n", - (ireason & IO) ? "Read" : "Write"); - return ide_do_reset(drive); - } - if (!(pc->flags & PC_FLAG_WRITING)) { - /* Reading - Check that we have enough space */ - temp = pc->xferred + bcount; - if (temp > pc->req_xfer) { - if (temp > pc->buf_size) { - printk(KERN_ERR "ide-tape: The tape wants to " - "send us more data than expected " - "- discarding data\n"); - ide_pad_transfer(drive, 0, bcount); - ide_set_handler(drive, &idetape_pc_intr, - IDETAPE_WAIT_CMD, NULL); - return ide_started; - } - debug_log(DBG_SENSE, "The tape wants to send us more " - "data than expected - allowing transfer\n"); - } - iobuf = &idetape_input_buffers; - xferfunc = hwif->input_data; - } else { - iobuf = &idetape_output_buffers; - xferfunc = hwif->output_data; - } - - if (pc->bh) - iobuf(drive, pc, bcount); - else - xferfunc(drive, NULL, pc->cur_pos, bcount); - - /* Update the current position */ - pc->xferred += bcount; - pc->cur_pos += bcount; - - debug_log(DBG_SENSE, "[cmd %x] transferred %d bytes on that intr.\n", - pc->c[0], bcount); - /* And set the interrupt handler again */ - ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL); - return ide_started; + return ide_pc_intr(drive, tape->pc, idetape_pc_intr, IDETAPE_WAIT_CMD, + NULL, idetape_update_buffers, idetape_retry_pc, + ide_tape_handle_dsc, ide_tape_io_buffers); } /* @@ -941,56 +843,16 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive) */ static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = tape->pc; - int retries = 100; - ide_startstop_t startstop; - u8 ireason; - - if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) { - printk(KERN_ERR "ide-tape: Strange, packet command initiated " - "yet DRQ isn't asserted\n"); - return startstop; - } - ireason = hwif->INB(hwif->io_ports.nsect_addr); - while (retries-- && ((ireason & CD) == 0 || (ireason & IO))) { - printk(KERN_ERR "ide-tape: (IO,CoD != (0,1) while issuing " - "a packet command, retrying\n"); - udelay(100); - ireason = hwif->INB(hwif->io_ports.nsect_addr); - if (retries == 0) { - printk(KERN_ERR "ide-tape: (IO,CoD != (0,1) while " - "issuing a packet command, ignoring\n"); - ireason |= CD; - ireason &= ~IO; - } - } - if ((ireason & CD) == 0 || (ireason & IO)) { - printk(KERN_ERR "ide-tape: (IO,CoD) != (0,1) while issuing " - "a packet command\n"); - return ide_do_reset(drive); - } - /* Set the interrupt routine */ - ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL); -#ifdef CONFIG_BLK_DEV_IDEDMA - /* Begin DMA, if necessary */ - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) - hwif->dma_ops->dma_start(drive); -#endif - /* Send the actual packet */ - hwif->output_data(drive, NULL, pc->c, 12); - return ide_started; + return ide_transfer_pc(drive, tape->pc, idetape_pc_intr, + IDETAPE_WAIT_CMD, NULL); } static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc) { - ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; - int dma_ok = 0; - u16 bcount; if (tape->pc->c[0] == REQUEST_SENSE && pc->c[0] == REQUEST_SENSE) { @@ -1025,50 +887,15 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, pc->error = IDETAPE_ERROR_GENERAL; } tape->failed_pc = NULL; - return pc->idetape_callback(drive); + pc->callback(drive); + return ide_stopped; } debug_log(DBG_SENSE, "Retry #%d, cmd = %02X\n", pc->retries, pc->c[0]); pc->retries++; - /* We haven't transferred any data yet */ - pc->xferred = 0; - pc->cur_pos = pc->buf; - /* Request to transfer the entire buffer at once */ - bcount = pc->req_xfer; - if (pc->flags & PC_FLAG_DMA_ERROR) { - pc->flags &= ~PC_FLAG_DMA_ERROR; - printk(KERN_WARNING "ide-tape: DMA disabled, " - "reverting to PIO\n"); - ide_dma_off(drive); - } - if ((pc->flags & PC_FLAG_DMA_RECOMMENDED) && drive->using_dma) - dma_ok = !hwif->dma_ops->dma_setup(drive); - - ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK | - IDE_TFLAG_OUT_DEVICE, bcount, dma_ok); - - if (dma_ok) - /* Will begin DMA later */ - pc->flags |= PC_FLAG_DMA_IN_PROGRESS; - if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags)) { - ide_execute_command(drive, WIN_PACKETCMD, &idetape_transfer_pc, - IDETAPE_WAIT_CMD, NULL); - return ide_started; - } else { - ide_execute_pkt_cmd(drive); - return idetape_transfer_pc(drive); - } -} - -static ide_startstop_t idetape_pc_callback(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - debug_log(DBG_PROCS, "Enter %s\n", __func__); - - idetape_end_request(drive, tape->pc->error ? 0 : 1, 0); - return ide_stopped; + return ide_issue_pc(drive, pc, idetape_transfer_pc, + IDETAPE_WAIT_CMD, NULL); } /* A mode sense command is used to "sense" tape parameters. */ @@ -1096,7 +923,6 @@ static void idetape_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code) pc->req_xfer = 24; else pc->req_xfer = 50; - pc->idetape_callback = &idetape_pc_callback; } static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) @@ -1114,80 +940,41 @@ static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) printk(KERN_ERR "ide-tape: %s: I/O error, ", tape->name); /* Retry operation */ - return idetape_retry_pc(drive); + idetape_retry_pc(drive); + return ide_stopped; } pc->error = 0; - if (tape->failed_pc == pc) - tape->failed_pc = NULL; } else { pc->error = IDETAPE_ERROR_GENERAL; tape->failed_pc = NULL; } - return pc->idetape_callback(drive); -} - -static ide_startstop_t idetape_rw_callback(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - struct request *rq = HWGROUP(drive)->rq; - int blocks = tape->pc->xferred / tape->blk_size; - - tape->avg_size += blocks * tape->blk_size; - - if (time_after_eq(jiffies, tape->avg_time + HZ)) { - tape->avg_speed = tape->avg_size * HZ / - (jiffies - tape->avg_time) / 1024; - tape->avg_size = 0; - tape->avg_time = jiffies; - } - debug_log(DBG_PROCS, "Enter %s\n", __func__); - - tape->first_frame += blocks; - rq->current_nr_sectors -= blocks; - - if (!tape->pc->error) - idetape_end_request(drive, 1, 0); - else - idetape_end_request(drive, tape->pc->error, 0); + pc->callback(drive); return ide_stopped; } -static void idetape_create_read_cmd(idetape_tape_t *tape, - struct ide_atapi_pc *pc, - unsigned int length, struct idetape_bh *bh) +static void ide_tape_create_rw_cmd(idetape_tape_t *tape, + struct ide_atapi_pc *pc, unsigned int length, + struct idetape_bh *bh, u8 opcode) { idetape_init_pc(pc); - pc->c[0] = READ_6; put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]); pc->c[1] = 1; - pc->idetape_callback = &idetape_rw_callback; pc->bh = bh; - atomic_set(&bh->b_count, 0); pc->buf = NULL; pc->buf_size = length * tape->blk_size; pc->req_xfer = pc->buf_size; if (pc->req_xfer == tape->buffer_size) - pc->flags |= PC_FLAG_DMA_RECOMMENDED; -} + pc->flags |= PC_FLAG_DMA_OK; -static void idetape_create_write_cmd(idetape_tape_t *tape, - struct ide_atapi_pc *pc, - unsigned int length, struct idetape_bh *bh) -{ - idetape_init_pc(pc); - pc->c[0] = WRITE_6; - put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]); - pc->c[1] = 1; - pc->idetape_callback = &idetape_rw_callback; - pc->flags |= PC_FLAG_WRITING; - pc->bh = bh; - pc->b_data = bh->b_data; - pc->b_count = atomic_read(&bh->b_count); - pc->buf = NULL; - pc->buf_size = length * tape->blk_size; - pc->req_xfer = pc->buf_size; - if (pc->req_xfer == tape->buffer_size) - pc->flags |= PC_FLAG_DMA_RECOMMENDED; + if (opcode == READ_6) { + pc->c[0] = READ_6; + atomic_set(&bh->b_count, 0); + } else if (opcode == WRITE_6) { + pc->c[0] = WRITE_6; + pc->flags |= PC_FLAG_WRITING; + pc->b_data = bh->b_data; + pc->b_count = atomic_read(&bh->b_count); + } } static ide_startstop_t idetape_do_request(ide_drive_t *drive, @@ -1211,8 +998,10 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, } /* Retry a failed packet command */ - if (tape->failed_pc && tape->pc->c[0] == REQUEST_SENSE) - return idetape_issue_pc(drive, tape->failed_pc); + if (tape->failed_pc && tape->pc->c[0] == REQUEST_SENSE) { + pc = tape->failed_pc; + goto out; + } if (postponed_rq != NULL) if (rq != postponed_rq) { @@ -1262,14 +1051,16 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, } if (rq->cmd[0] & REQ_IDETAPE_READ) { pc = idetape_next_pc_storage(drive); - idetape_create_read_cmd(tape, pc, rq->current_nr_sectors, - (struct idetape_bh *)rq->special); + ide_tape_create_rw_cmd(tape, pc, rq->current_nr_sectors, + (struct idetape_bh *)rq->special, + READ_6); goto out; } if (rq->cmd[0] & REQ_IDETAPE_WRITE) { pc = idetape_next_pc_storage(drive); - idetape_create_write_cmd(tape, pc, rq->current_nr_sectors, - (struct idetape_bh *)rq->special); + ide_tape_create_rw_cmd(tape, pc, rq->current_nr_sectors, + (struct idetape_bh *)rq->special, + WRITE_6); goto out; } if (rq->cmd[0] & REQ_IDETAPE_PC1) { @@ -1284,6 +1075,9 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, } BUG(); out: + if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags)) + pc->flags |= PC_FLAG_DRQ_INTERRUPT; + return idetape_issue_pc(drive, pc); } @@ -1447,40 +1241,6 @@ static void idetape_init_merge_buffer(idetape_tape_t *tape) } } -static ide_startstop_t idetape_read_position_callback(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - u8 *readpos = tape->pc->buf; - - debug_log(DBG_PROCS, "Enter %s\n", __func__); - - if (!tape->pc->error) { - debug_log(DBG_SENSE, "BOP - %s\n", - (readpos[0] & 0x80) ? "Yes" : "No"); - debug_log(DBG_SENSE, "EOP - %s\n", - (readpos[0] & 0x40) ? "Yes" : "No"); - - if (readpos[0] & 0x4) { - printk(KERN_INFO "ide-tape: Block location is unknown" - "to the tape\n"); - clear_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags); - idetape_end_request(drive, 0, 0); - } else { - debug_log(DBG_SENSE, "Block Location - %u\n", - be32_to_cpu(*(u32 *)&readpos[4])); - - tape->partition = readpos[1]; - tape->first_frame = - be32_to_cpu(*(u32 *)&readpos[4]); - set_bit(IDETAPE_FLAG_ADDRESS_VALID, &tape->flags); - idetape_end_request(drive, 1, 0); - } - } else { - idetape_end_request(drive, 0, 0); - } - return ide_stopped; -} - /* * Write a filemark if write_filemark=1. Flush the device buffers without * writing a filemark otherwise. @@ -1492,14 +1252,12 @@ static void idetape_create_write_filemark_cmd(ide_drive_t *drive, pc->c[0] = WRITE_FILEMARKS; pc->c[4] = write_filemark; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static void idetape_create_test_unit_ready_cmd(struct ide_atapi_pc *pc) { idetape_init_pc(pc); pc->c[0] = TEST_UNIT_READY; - pc->idetape_callback = &idetape_pc_callback; } /* @@ -1518,12 +1276,16 @@ static void idetape_create_test_unit_ready_cmd(struct ide_atapi_pc *pc) static int idetape_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc) { struct ide_tape_obj *tape = drive->driver_data; - struct request rq; + struct request *rq; + int error; - idetape_init_rq(&rq, REQ_IDETAPE_PC1); - rq.buffer = (char *) pc; - rq.rq_disk = tape->disk; - return ide_do_drive_cmd(drive, &rq, ide_wait); + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd[0] = REQ_IDETAPE_PC1; + rq->buffer = (char *)pc; + error = blk_execute_rq(drive->queue, tape->disk, rq, 0); + blk_put_request(rq); + return error; } static void idetape_create_load_unload_cmd(ide_drive_t *drive, @@ -1533,7 +1295,6 @@ static void idetape_create_load_unload_cmd(ide_drive_t *drive, pc->c[0] = START_STOP; pc->c[4] = cmd; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static int idetape_wait_ready(ide_drive_t *drive, unsigned long timeout) @@ -1585,7 +1346,6 @@ static void idetape_create_read_position_cmd(struct ide_atapi_pc *pc) idetape_init_pc(pc); pc->c[0] = READ_POSITION; pc->req_xfer = 20; - pc->idetape_callback = &idetape_read_position_callback; } static int idetape_read_position(ide_drive_t *drive) @@ -1613,7 +1373,6 @@ static void idetape_create_locate_cmd(ide_drive_t *drive, put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[3]); pc->c[8] = partition; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static int idetape_create_prevent_cmd(ide_drive_t *drive, @@ -1628,7 +1387,6 @@ static int idetape_create_prevent_cmd(ide_drive_t *drive, idetape_init_pc(pc); pc->c[0] = ALLOW_MEDIUM_REMOVAL; pc->c[4] = prevent; - pc->idetape_callback = &idetape_pc_callback; return 1; } @@ -1700,26 +1458,33 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int blocks, struct idetape_bh *bh) { idetape_tape_t *tape = drive->driver_data; - struct request rq; + struct request *rq; + int ret, errors; debug_log(DBG_SENSE, "%s: cmd=%d\n", __func__, cmd); - idetape_init_rq(&rq, cmd); - rq.rq_disk = tape->disk; - rq.special = (void *)bh; - rq.sector = tape->first_frame; - rq.nr_sectors = blocks; - rq.current_nr_sectors = blocks; - (void) ide_do_drive_cmd(drive, &rq, ide_wait); + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd[0] = cmd; + rq->rq_disk = tape->disk; + rq->special = (void *)bh; + rq->sector = tape->first_frame; + rq->nr_sectors = blocks; + rq->current_nr_sectors = blocks; + blk_execute_rq(drive->queue, tape->disk, rq, 0); + + errors = rq->errors; + ret = tape->blk_size * (blocks - rq->current_nr_sectors); + blk_put_request(rq); if ((cmd & (REQ_IDETAPE_READ | REQ_IDETAPE_WRITE)) == 0) return 0; if (tape->merge_bh) idetape_init_merge_buffer(tape); - if (rq.errors == IDETAPE_ERROR_GENERAL) + if (errors == IDETAPE_ERROR_GENERAL) return -EIO; - return (tape->blk_size * (blocks-rq.current_nr_sectors)); + return ret; } static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc) @@ -1728,7 +1493,6 @@ static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc) pc->c[0] = INQUIRY; pc->c[4] = 254; pc->req_xfer = 254; - pc->idetape_callback = &idetape_pc_callback; } static void idetape_create_rewind_cmd(ide_drive_t *drive, @@ -1737,7 +1501,6 @@ static void idetape_create_rewind_cmd(ide_drive_t *drive, idetape_init_pc(pc); pc->c[0] = REZERO_UNIT; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static void idetape_create_erase_cmd(struct ide_atapi_pc *pc) @@ -1746,7 +1509,6 @@ static void idetape_create_erase_cmd(struct ide_atapi_pc *pc) pc->c[0] = ERASE; pc->c[1] = 1; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd) @@ -1756,7 +1518,6 @@ static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd) put_unaligned(cpu_to_be32(count), (unsigned int *) &pc->c[1]); pc->c[1] = cmd; pc->flags |= PC_FLAG_WAIT_FOR_DSC; - pc->idetape_callback = &idetape_pc_callback; } /* Queue up a character device originated write request. */ @@ -2746,9 +2507,8 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) * Ensure that the number we got makes sense; limit it within * IDETAPE_DSC_RW_MIN and IDETAPE_DSC_RW_MAX. */ - tape->best_dsc_rw_freq = max_t(unsigned long, - min_t(unsigned long, t, IDETAPE_DSC_RW_MAX), - IDETAPE_DSC_RW_MIN); + tape->best_dsc_rw_freq = clamp_t(unsigned long, t, IDETAPE_DSC_RW_MIN, + IDETAPE_DSC_RW_MAX); printk(KERN_INFO "ide-tape: %s <-> %s: %dKBps, %d*%dkB buffer, " "%lums tDSC%s\n", drive->name, tape->name, *(u16 *)&tape->caps[14], @@ -2900,11 +2660,6 @@ static int ide_tape_probe(ide_drive_t *drive) " the driver\n", drive->name); goto failed; } - if (drive->scsi) { - printk(KERN_INFO "ide-tape: passing drive %s to ide-scsi" - " emulation.\n", drive->name); - goto failed; - } tape = kzalloc(sizeof(idetape_tape_t), GFP_KERNEL); if (tape == NULL) { printk(KERN_ERR "ide-tape: %s: Can't allocate a tape struct\n", @@ -2938,10 +2693,12 @@ static int ide_tape_probe(ide_drive_t *drive) idetape_setup(drive, tape, minor); - device_create(idetape_sysfs_class, &drive->gendev, - MKDEV(IDETAPE_MAJOR, minor), "%s", tape->name); - device_create(idetape_sysfs_class, &drive->gendev, - MKDEV(IDETAPE_MAJOR, minor + 128), "n%s", tape->name); + device_create_drvdata(idetape_sysfs_class, &drive->gendev, + MKDEV(IDETAPE_MAJOR, minor), NULL, + "%s", tape->name); + device_create_drvdata(idetape_sysfs_class, &drive->gendev, + MKDEV(IDETAPE_MAJOR, minor + 128), NULL, + "n%s", tape->name); g->fops = &idetape_block_ops; ide_register_region(g); diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index ab545ffa1549..1fbdb746dc88 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -8,28 +8,18 @@ * The big the bad and the ugly. */ -#include <linux/module.h> #include <linux/types.h> #include <linux/string.h> #include <linux/kernel.h> -#include <linux/timer.h> -#include <linux/mm.h> #include <linux/sched.h> #include <linux/interrupt.h> -#include <linux/major.h> #include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/blkpg.h> #include <linux/slab.h> -#include <linux/pci.h> #include <linux/delay.h> #include <linux/hdreg.h> #include <linux/ide.h> -#include <linux/bitops.h> #include <linux/scatterlist.h> -#include <asm/byteorder.h> -#include <asm/irq.h> #include <asm/uaccess.h> #include <asm/io.h> @@ -62,25 +52,6 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf) return ide_raw_taskfile(drive, &args, buf, 1); } -static int inline task_dma_ok(ide_task_t *task) -{ - if (blk_fs_request(task->rq) || (task->tf_flags & IDE_TFLAG_FLAGGED)) - return 1; - - switch (task->tf.command) { - case WIN_WRITEDMA_ONCE: - case WIN_WRITEDMA: - case WIN_WRITEDMA_EXT: - case WIN_READDMA_ONCE: - case WIN_READDMA: - case WIN_READDMA_EXT: - case WIN_IDENTIFY_DMA: - return 1; - } - - return 0; -} - static ide_startstop_t task_no_data_intr(ide_drive_t *); static ide_startstop_t set_geometry_intr(ide_drive_t *); static ide_startstop_t recal_intr(ide_drive_t *); @@ -109,13 +80,15 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) { ide_tf_dump(drive->name, tf); + ide_set_irq(drive, 1); + SELECT_MASK(drive, 0); hwif->tf_load(drive, task); } switch (task->data_phase) { case TASKFILE_MULTI_OUT: case TASKFILE_OUT: - hwif->OUTBSYNC(drive, tf->command, hwif->io_ports.command_addr); + hwif->OUTBSYNC(hwif, tf->command, hwif->io_ports.command_addr); ndelay(400); /* FIXME */ return pre_task_out_intr(drive, task->rq); case TASKFILE_MULTI_IN: @@ -137,8 +110,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task) WAIT_WORSTCASE, NULL); return ide_started; default: - if (task_dma_ok(task) == 0 || drive->using_dma == 0 || - dma_ops->dma_setup(drive)) + if (drive->using_dma == 0 || dma_ops->dma_setup(drive)) return ide_stopped; dma_ops->dma_exec_cmd(drive, tf->command); dma_ops->dma_start(drive); @@ -181,7 +153,6 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive) if (stat & (ERR_STAT|DRQ_STAT)) return ide_error(drive, "set_geometry_intr", stat); - BUG_ON(HWGROUP(drive)->handler != NULL); ide_set_handler(drive, &set_geometry_intr, WAIT_WORSTCASE, NULL); return ide_started; } @@ -492,11 +463,12 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq) int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect) { - struct request rq; + struct request *rq; + int error; - blk_rq_init(NULL, &rq); - rq.cmd_type = REQ_TYPE_ATA_TASKFILE; - rq.buffer = buf; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_ATA_TASKFILE; + rq->buffer = buf; /* * (ks) We transfer currently only whole sectors. @@ -504,16 +476,19 @@ int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect) * if we would find a solution to transfer any size. * To support special commands like READ LONG. */ - rq.hard_nr_sectors = rq.nr_sectors = nsect; - rq.hard_cur_sectors = rq.current_nr_sectors = nsect; + rq->hard_nr_sectors = rq->nr_sectors = nsect; + rq->hard_cur_sectors = rq->current_nr_sectors = nsect; if (task->tf_flags & IDE_TFLAG_WRITE) - rq.cmd_flags |= REQ_RW; + rq->cmd_flags |= REQ_RW; + + rq->special = task; + task->rq = rq; - rq.special = task; - task->rq = &rq; + error = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); - return ide_do_drive_cmd(drive, &rq, ide_wait); + return error; } EXPORT_SYMBOL(ide_raw_taskfile); @@ -739,12 +714,14 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) struct hd_driveid *id = drive->id; if (NULL == (void *) arg) { - struct request rq; + struct request *rq; - ide_init_drive_cmd(&rq); - rq.cmd_type = REQ_TYPE_ATA_TASKFILE; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_ATA_TASKFILE; + err = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); - return ide_do_drive_cmd(drive, &rq, ide_wait); + return err; } if (copy_from_user(args, (void __user *)arg, 4)) diff --git a/drivers/ide/ide-timing.h b/drivers/ide/ide-timings.c index 3b12ffe77071..8c2f8327f487 100644 --- a/drivers/ide/ide-timing.h +++ b/drivers/ide/ide-timings.c @@ -1,11 +1,7 @@ -#ifndef _IDE_TIMING_H -#define _IDE_TIMING_H - /* * Copyright (c) 1999-2001 Vojtech Pavlik - */ - -/* + * Copyright (c) 2007-2008 Bartlomiej Zolnierkiewicz + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -27,27 +23,14 @@ #include <linux/kernel.h> #include <linux/hdreg.h> - -#define XFER_PIO_5 0x0d -#define XFER_UDMA_SLOW 0x4f - -struct ide_timing { - short mode; - short setup; /* t1 */ - short act8b; /* t2 for 8-bit io */ - short rec8b; /* t2i for 8-bit io */ - short cyc8b; /* t0 for 8-bit io */ - short active; /* t2 or tD */ - short recover; /* t2i or tK */ - short cycle; /* t0 */ - short udma; /* t2CYCTYP/2 */ -}; +#include <linux/ide.h> +#include <linux/module.h> /* * PIO 0-5, MWDMA 0-2 and UDMA 0-6 timings (in nanoseconds). * These were taken from ATA/ATAPI-6 standard, rev 0a, except * for PIO 5, which is a nonstandard extension and UDMA6, which - * is currently supported only by Maxtor drives. + * is currently supported only by Maxtor drives. */ static struct ide_timing ide_timing[] = { @@ -61,12 +44,10 @@ static struct ide_timing ide_timing[] = { { XFER_UDMA_1, 0, 0, 0, 0, 0, 0, 0, 80 }, { XFER_UDMA_0, 0, 0, 0, 0, 0, 0, 0, 120 }, - { XFER_UDMA_SLOW, 0, 0, 0, 0, 0, 0, 0, 150 }, - { XFER_MW_DMA_2, 25, 0, 0, 0, 70, 25, 120, 0 }, { XFER_MW_DMA_1, 45, 0, 0, 0, 80, 50, 150, 0 }, { XFER_MW_DMA_0, 60, 0, 0, 0, 215, 215, 480, 0 }, - + { XFER_SW_DMA_2, 60, 0, 0, 0, 120, 120, 240, 0 }, { XFER_SW_DMA_1, 90, 0, 0, 0, 240, 240, 480, 0 }, { XFER_SW_DMA_0, 120, 0, 0, 0, 480, 480, 960, 0 }, @@ -81,30 +62,46 @@ static struct ide_timing ide_timing[] = { { XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 960, 0 }, - { -1 } + { 0xff } }; -#define IDE_TIMING_SETUP 0x01 -#define IDE_TIMING_ACT8B 0x02 -#define IDE_TIMING_REC8B 0x04 -#define IDE_TIMING_CYC8B 0x08 -#define IDE_TIMING_8BIT 0x0e -#define IDE_TIMING_ACTIVE 0x10 -#define IDE_TIMING_RECOVER 0x20 -#define IDE_TIMING_CYCLE 0x40 -#define IDE_TIMING_UDMA 0x80 -#define IDE_TIMING_ALL 0xff - -#define FIT(v,vmin,vmax) max_t(short,min_t(short,v,vmax),vmin) -#define ENOUGH(v,unit) (((v)-1)/(unit)+1) -#define EZ(v,unit) ((v)?ENOUGH(v,unit):0) - -#define XFER_MODE 0xf0 -#define XFER_MWDMA 0x20 -#define XFER_EPIO 0x01 -#define XFER_PIO 0x00 - -static void ide_timing_quantize(struct ide_timing *t, struct ide_timing *q, int T, int UT) +struct ide_timing *ide_timing_find_mode(u8 speed) +{ + struct ide_timing *t; + + for (t = ide_timing; t->mode != speed; t++) + if (t->mode == 0xff) + return NULL; + return t; +} +EXPORT_SYMBOL_GPL(ide_timing_find_mode); + +u16 ide_pio_cycle_time(ide_drive_t *drive, u8 pio) +{ + struct hd_driveid *id = drive->id; + struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); + u16 cycle = 0; + + if (id->field_valid & 2) { + if (id->capability & 8) + cycle = id->eide_pio_iordy; + else + cycle = id->eide_pio; + + /* conservative "downgrade" for all pre-ATA2 drives */ + if (pio < 3 && cycle < t->cycle) + cycle = 0; /* use standard timing */ + } + + return cycle ? cycle : t->cycle; +} +EXPORT_SYMBOL_GPL(ide_pio_cycle_time); + +#define ENOUGH(v, unit) (((v) - 1) / (unit) + 1) +#define EZ(v, unit) ((v) ? ENOUGH(v, unit) : 0) + +static void ide_timing_quantize(struct ide_timing *t, struct ide_timing *q, + int T, int UT) { q->setup = EZ(t->setup * 1000, T); q->act8b = EZ(t->act8b * 1000, T); @@ -116,92 +113,83 @@ static void ide_timing_quantize(struct ide_timing *t, struct ide_timing *q, int q->udma = EZ(t->udma * 1000, UT); } -static void ide_timing_merge(struct ide_timing *a, struct ide_timing *b, struct ide_timing *m, unsigned int what) -{ - if (what & IDE_TIMING_SETUP ) m->setup = max(a->setup, b->setup); - if (what & IDE_TIMING_ACT8B ) m->act8b = max(a->act8b, b->act8b); - if (what & IDE_TIMING_REC8B ) m->rec8b = max(a->rec8b, b->rec8b); - if (what & IDE_TIMING_CYC8B ) m->cyc8b = max(a->cyc8b, b->cyc8b); - if (what & IDE_TIMING_ACTIVE ) m->active = max(a->active, b->active); - if (what & IDE_TIMING_RECOVER) m->recover = max(a->recover, b->recover); - if (what & IDE_TIMING_CYCLE ) m->cycle = max(a->cycle, b->cycle); - if (what & IDE_TIMING_UDMA ) m->udma = max(a->udma, b->udma); -} - -static struct ide_timing* ide_timing_find_mode(short speed) +void ide_timing_merge(struct ide_timing *a, struct ide_timing *b, + struct ide_timing *m, unsigned int what) { - struct ide_timing *t; - - for (t = ide_timing; t->mode != speed; t++) - if (t->mode < 0) - return NULL; - return t; + if (what & IDE_TIMING_SETUP) + m->setup = max(a->setup, b->setup); + if (what & IDE_TIMING_ACT8B) + m->act8b = max(a->act8b, b->act8b); + if (what & IDE_TIMING_REC8B) + m->rec8b = max(a->rec8b, b->rec8b); + if (what & IDE_TIMING_CYC8B) + m->cyc8b = max(a->cyc8b, b->cyc8b); + if (what & IDE_TIMING_ACTIVE) + m->active = max(a->active, b->active); + if (what & IDE_TIMING_RECOVER) + m->recover = max(a->recover, b->recover); + if (what & IDE_TIMING_CYCLE) + m->cycle = max(a->cycle, b->cycle); + if (what & IDE_TIMING_UDMA) + m->udma = max(a->udma, b->udma); } +EXPORT_SYMBOL_GPL(ide_timing_merge); -static int ide_timing_compute(ide_drive_t *drive, short speed, struct ide_timing *t, int T, int UT) +int ide_timing_compute(ide_drive_t *drive, u8 speed, + struct ide_timing *t, int T, int UT) { struct hd_driveid *id = drive->id; struct ide_timing *s, p; -/* - * Find the mode. - */ - - if (!(s = ide_timing_find_mode(speed))) + /* + * Find the mode. + */ + s = ide_timing_find_mode(speed); + if (s == NULL) return -EINVAL; -/* - * Copy the timing from the table. - */ - + /* + * Copy the timing from the table. + */ *t = *s; -/* - * If the drive is an EIDE drive, it can tell us it needs extended - * PIO/MWDMA cycle timing. - */ - + /* + * If the drive is an EIDE drive, it can tell us it needs extended + * PIO/MWDMA cycle timing. + */ if (id && id->field_valid & 2) { /* EIDE drive */ memset(&p, 0, sizeof(p)); - switch (speed & XFER_MODE) { - - case XFER_PIO: - if (speed <= XFER_PIO_2) p.cycle = p.cyc8b = id->eide_pio; - else p.cycle = p.cyc8b = id->eide_pio_iordy; - break; - - case XFER_MWDMA: - p.cycle = id->eide_dma_min; - break; - } + if (speed <= XFER_PIO_2) + p.cycle = p.cyc8b = id->eide_pio; + else if (speed <= XFER_PIO_5) + p.cycle = p.cyc8b = id->eide_pio_iordy; + else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2) + p.cycle = id->eide_dma_min; ide_timing_merge(&p, t, t, IDE_TIMING_CYCLE | IDE_TIMING_CYC8B); } -/* - * Convert the timing to bus clock counts. - */ - + /* + * Convert the timing to bus clock counts. + */ ide_timing_quantize(t, t, T, UT); -/* - * Even in DMA/UDMA modes we still use PIO access for IDENTIFY, S.M.A.R.T - * and some other commands. We have to ensure that the DMA cycle timing is - * slower/equal than the fastest PIO timing. - */ - - if ((speed & XFER_MODE) != XFER_PIO) { + /* + * Even in DMA/UDMA modes we still use PIO access for IDENTIFY, + * S.M.A.R.T and some other commands. We have to ensure that the + * DMA cycle timing is slower/equal than the fastest PIO timing. + */ + if (speed >= XFER_SW_DMA_0) { u8 pio = ide_get_best_pio_mode(drive, 255, 5); ide_timing_compute(drive, XFER_PIO_0 + pio, &p, T, UT); ide_timing_merge(&p, t, t, IDE_TIMING_ALL); } -/* - * Lengthen active & recovery time so that cycle time is correct. - */ - + /* + * Lengthen active & recovery time so that cycle time is correct. + */ if (t->act8b + t->rec8b < t->cyc8b) { t->act8b += (t->cyc8b - (t->act8b + t->rec8b)) / 2; t->rec8b = t->cyc8b - t->act8b; @@ -214,5 +202,4 @@ static int ide_timing_compute(ide_drive_t *drive, short speed, struct ide_timing return 0; } - -#endif +EXPORT_SYMBOL_GPL(ide_timing_compute); diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index c758dcb13b14..b0739c98a06e 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -50,29 +50,16 @@ #include <linux/types.h> #include <linux/string.h> #include <linux/kernel.h> -#include <linux/timer.h> -#include <linux/mm.h> #include <linux/interrupt.h> #include <linux/major.h> #include <linux/errno.h> #include <linux/genhd.h> -#include <linux/blkpg.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/pci.h> -#include <linux/delay.h> #include <linux/ide.h> #include <linux/completion.h> -#include <linux/reboot.h> -#include <linux/cdrom.h> -#include <linux/seq_file.h> #include <linux/device.h> -#include <linux/bitops.h> - -#include <asm/byteorder.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/io.h> /* default maximum number of failures */ @@ -86,15 +73,10 @@ static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR, IDE6_MAJOR, IDE7_MAJOR, IDE8_MAJOR, IDE9_MAJOR }; -static int idebus_parameter; /* holds the "idebus=" parameter */ -static int system_bus_speed; /* holds what we think is VESA/PCI bus speed */ - DEFINE_MUTEX(ide_cfg_mtx); - __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); -int noautodma = 0; - -ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ +__cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); +EXPORT_SYMBOL(ide_lock); static void ide_port_init_devices_data(ide_hwif_t *); @@ -124,7 +106,6 @@ void ide_init_port_data(ide_hwif_t *hwif, unsigned int index) ide_port_init_devices_data(hwif); } -EXPORT_SYMBOL_GPL(ide_init_port_data); static void ide_port_init_devices_data(ide_hwif_t *hwif) { @@ -139,7 +120,6 @@ static void ide_port_init_devices_data(ide_hwif_t *hwif) drive->media = ide_disk; drive->select.all = (unit<<4)|0xa0; drive->hwif = hwif; - drive->ctl = 0x08; drive->ready_stat = READY_STAT; drive->bad_wstat = BAD_W_STAT; drive->special.b.recalibrate = 1; @@ -154,73 +134,6 @@ static void ide_port_init_devices_data(ide_hwif_t *hwif) } } -/* - * init_ide_data() sets reasonable default values into all fields - * of all instances of the hwifs and drives, but only on the first call. - * Subsequent calls have no effect (they don't wipe out anything). - * - * This routine is normally called at driver initialization time, - * but may also be called MUCH earlier during kernel "command-line" - * parameter processing. As such, we cannot depend on any other parts - * of the kernel (such as memory allocation) to be functioning yet. - * - * This is too bad, as otherwise we could dynamically allocate the - * ide_drive_t structs as needed, rather than always consuming memory - * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them. - * - * FIXME: We should stuff the setup data into __init and copy the - * relevant hwifs/allocate them properly during boot. - */ -#define MAGIC_COOKIE 0x12345678 -static void __init init_ide_data (void) -{ - unsigned int index; - static unsigned long magic_cookie = MAGIC_COOKIE; - - if (magic_cookie != MAGIC_COOKIE) - return; /* already initialized */ - magic_cookie = 0; - - /* Initialise all interface structures */ - for (index = 0; index < MAX_HWIFS; ++index) { - ide_hwif_t *hwif = &ide_hwifs[index]; - - ide_init_port_data(hwif, index); - } -} - -/** - * ide_system_bus_speed - guess bus speed - * - * ide_system_bus_speed() returns what we think is the system VESA/PCI - * bus speed (in MHz). This is used for calculating interface PIO timings. - * The default is 40 for known PCI systems, 50 otherwise. - * The "idebus=xx" parameter can be used to override this value. - * The actual value to be used is computed/displayed the first time - * through. Drivers should only use this as a last resort. - * - * Returns a guessed speed in MHz. - */ - -static int ide_system_bus_speed(void) -{ -#ifdef CONFIG_PCI - static struct pci_device_id pci_default[] = { - { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) }, - { } - }; -#else -#define pci_default 0 -#endif /* CONFIG_PCI */ - - /* user supplied value */ - if (idebus_parameter) - return idebus_parameter; - - /* safe default value for PCI or VESA and PCI*/ - return pci_dev_present(pci_default) ? 33 : 50; -} - void ide_remove_port_from_hwgroup(ide_hwif_t *hwif) { ide_hwgroup_t *hwgroup = hwif->hwgroup; @@ -371,7 +284,8 @@ void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw) memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports)); hwif->irq = hw->irq; hwif->chipset = hw->chipset; - hwif->gendev.parent = hw->dev; + hwif->dev = hw->dev; + hwif->gendev.parent = hw->parent ? hw->parent : hw->dev; hwif->ack_intr = hw->ack_intr; } EXPORT_SYMBOL_GPL(ide_init_port_hw); @@ -498,7 +412,7 @@ out: int set_pio_mode(ide_drive_t *drive, int arg) { - struct request rq; + struct request *rq; ide_hwif_t *hwif = drive->hwif; const struct ide_port_ops *port_ops = hwif->port_ops; @@ -512,12 +426,15 @@ int set_pio_mode(ide_drive_t *drive, int arg) if (drive->special.b.set_tune) return -EBUSY; - ide_init_drive_cmd(&rq); - rq.cmd_type = REQ_TYPE_ATA_TASKFILE; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_ATA_TASKFILE; drive->tune_req = (u8) arg; drive->special.b.set_tune = 1; - (void) ide_do_drive_cmd(drive, &rq, ide_wait); + + blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); + return 0; } @@ -537,25 +454,11 @@ static int set_unmaskirq(ide_drive_t *drive, int arg) return 0; } -/** - * system_bus_clock - clock guess - * - * External version of the bus clock guess used by very old IDE drivers - * for things like VLB timings. Should not be used. - */ - -int system_bus_clock (void) -{ - return system_bus_speed; -} - -EXPORT_SYMBOL(system_bus_clock); - static int generic_ide_suspend(struct device *dev, pm_message_t mesg) { ide_drive_t *drive = dev->driver_data; ide_hwif_t *hwif = HWIF(drive); - struct request rq; + struct request *rq; struct request_pm_state rqpm; ide_task_t args; int ret; @@ -564,18 +467,19 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg) if (!(drive->dn % 2)) ide_acpi_get_timing(hwif); - blk_rq_init(NULL, &rq); memset(&rqpm, 0, sizeof(rqpm)); memset(&args, 0, sizeof(args)); - rq.cmd_type = REQ_TYPE_PM_SUSPEND; - rq.special = &args; - rq.data = &rqpm; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_PM_SUSPEND; + rq->special = &args; + rq->data = &rqpm; rqpm.pm_step = ide_pm_state_start_suspend; if (mesg.event == PM_EVENT_PRETHAW) mesg.event = PM_EVENT_FREEZE; rqpm.pm_state = mesg.event; - ret = ide_do_drive_cmd(drive, &rq, ide_wait); + ret = blk_execute_rq(drive->queue, NULL, rq, 0); + blk_put_request(rq); /* only call ACPI _PS3 after both drivers are suspended */ if (!ret && (((drive->dn % 2) && hwif->drives[0].present && hwif->drives[1].present) @@ -589,7 +493,7 @@ static int generic_ide_resume(struct device *dev) { ide_drive_t *drive = dev->driver_data; ide_hwif_t *hwif = HWIF(drive); - struct request rq; + struct request *rq; struct request_pm_state rqpm; ide_task_t args; int err; @@ -602,16 +506,18 @@ static int generic_ide_resume(struct device *dev) ide_acpi_exec_tfs(drive); - blk_rq_init(NULL, &rq); memset(&rqpm, 0, sizeof(rqpm)); memset(&args, 0, sizeof(args)); - rq.cmd_type = REQ_TYPE_PM_RESUME; - rq.special = &args; - rq.data = &rqpm; + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_PM_RESUME; + rq->cmd_flags |= REQ_PREEMPT; + rq->special = &args; + rq->data = &rqpm; rqpm.pm_step = ide_pm_state_start_resume; rqpm.pm_state = PM_EVENT_ON; - err = ide_do_drive_cmd(drive, &rq, ide_head_wait); + err = blk_execute_rq(drive->queue, NULL, rq, 1); + blk_put_request(rq); if (err == 0 && dev->driver) { ide_driver_t *drv = to_ide_driver(dev->driver); @@ -764,212 +670,6 @@ set_val: EXPORT_SYMBOL(generic_ide_ioctl); -/* - * stridx() returns the offset of c within s, - * or -1 if c is '\0' or not found within s. - */ -static int __init stridx (const char *s, char c) -{ - char *i = strchr(s, c); - return (i && c) ? i - s : -1; -} - -/* - * match_parm() does parsing for ide_setup(): - * - * 1. the first char of s must be '='. - * 2. if the remainder matches one of the supplied keywords, - * the index (1 based) of the keyword is negated and returned. - * 3. if the remainder is a series of no more than max_vals numbers - * separated by commas, the numbers are saved in vals[] and a - * count of how many were saved is returned. Base10 is assumed, - * and base16 is allowed when prefixed with "0x". - * 4. otherwise, zero is returned. - */ -static int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals) -{ - static const char *decimal = "0123456789"; - static const char *hex = "0123456789abcdef"; - int i, n; - - if (*s++ == '=') { - /* - * Try matching against the supplied keywords, - * and return -(index+1) if we match one - */ - if (keywords != NULL) { - for (i = 0; *keywords != NULL; ++i) { - if (!strcmp(s, *keywords++)) - return -(i+1); - } - } - /* - * Look for a series of no more than "max_vals" - * numeric values separated by commas, in base10, - * or base16 when prefixed with "0x". - * Return a count of how many were found. - */ - for (n = 0; (i = stridx(decimal, *s)) >= 0;) { - vals[n] = i; - while ((i = stridx(decimal, *++s)) >= 0) - vals[n] = (vals[n] * 10) + i; - if (*s == 'x' && !vals[n]) { - while ((i = stridx(hex, *++s)) >= 0) - vals[n] = (vals[n] * 0x10) + i; - } - if (++n == max_vals) - break; - if (*s == ',' || *s == ';') - ++s; - } - if (!*s) - return n; - } - return 0; /* zero = nothing matched */ -} - -/* - * ide_setup() gets called VERY EARLY during initialization, - * to handle kernel "command line" strings beginning with "hdx=" or "ide". - * - * Remember to update Documentation/ide/ide.txt if you change something here. - */ -static int __init ide_setup(char *s) -{ - ide_hwif_t *hwif; - ide_drive_t *drive; - unsigned int hw, unit; - int vals[3]; - const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1); - - if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */ - return 0; /* driver and not us */ - - if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2)) - return 0; - - printk(KERN_INFO "ide_setup: %s", s); - init_ide_data (); - -#ifdef CONFIG_BLK_DEV_IDEDOUBLER - if (!strcmp(s, "ide=doubler")) { - extern int ide_doubler; - - printk(" : Enabled support for IDE doublers\n"); - ide_doubler = 1; - goto obsolete_option; - } -#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ - - if (!strcmp(s, "ide=nodma")) { - printk(" : Prevented DMA\n"); - noautodma = 1; - goto obsolete_option; - } - -#ifdef CONFIG_BLK_DEV_IDEACPI - if (!strcmp(s, "ide=noacpi")) { - //printk(" : Disable IDE ACPI support.\n"); - ide_noacpi = 1; - goto obsolete_option; - } - if (!strcmp(s, "ide=acpigtf")) { - //printk(" : Enable IDE ACPI _GTF support.\n"); - ide_acpigtf = 1; - goto obsolete_option; - } - if (!strcmp(s, "ide=acpionboot")) { - //printk(" : Call IDE ACPI methods on boot.\n"); - ide_acpionboot = 1; - goto obsolete_option; - } -#endif /* CONFIG_BLK_DEV_IDEACPI */ - - /* - * Look for drive options: "hdx=" - */ - if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) { - const char *hd_words[] = { - "none", "noprobe", "nowerr", "cdrom", "nodma", - "-6", "-7", "-8", "-9", "-10", - "noflush", "remap", "remap63", "scsi", NULL }; - unit = s[2] - 'a'; - hw = unit / MAX_DRIVES; - unit = unit % MAX_DRIVES; - hwif = &ide_hwifs[hw]; - drive = &hwif->drives[unit]; - if (strncmp(s + 4, "ide-", 4) == 0) { - strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req)); - goto obsolete_option; - } - switch (match_parm(&s[3], hd_words, vals, 3)) { - case -1: /* "none" */ - case -2: /* "noprobe" */ - drive->noprobe = 1; - goto obsolete_option; - case -3: /* "nowerr" */ - drive->bad_wstat = BAD_R_STAT; - goto obsolete_option; - case -4: /* "cdrom" */ - drive->present = 1; - drive->media = ide_cdrom; - /* an ATAPI device ignores DRDY */ - drive->ready_stat = 0; - goto obsolete_option; - case -5: /* nodma */ - drive->nodma = 1; - goto obsolete_option; - case -11: /* noflush */ - drive->noflush = 1; - goto obsolete_option; - case -12: /* "remap" */ - drive->remap_0_to_1 = 1; - goto obsolete_option; - case -13: /* "remap63" */ - drive->sect0 = 63; - goto obsolete_option; - case -14: /* "scsi" */ - drive->scsi = 1; - goto obsolete_option; - case 3: /* cyl,head,sect */ - drive->media = ide_disk; - drive->ready_stat = READY_STAT; - drive->cyl = drive->bios_cyl = vals[0]; - drive->head = drive->bios_head = vals[1]; - drive->sect = drive->bios_sect = vals[2]; - drive->present = 1; - drive->forced_geom = 1; - goto obsolete_option; - default: - goto bad_option; - } - } - - if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e') - goto bad_option; - /* - * Look for bus speed option: "idebus=" - */ - if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') { - if (match_parm(&s[6], NULL, vals, 1) != 1) - goto bad_option; - if (vals[0] >= 20 && vals[0] <= 66) { - idebus_parameter = vals[0]; - } else - printk(" -- BAD BUS SPEED! Expected value from 20 to 66"); - goto obsolete_option; - } - -bad_option: - printk(" -- BAD OPTION\n"); - return 1; -obsolete_option: - printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n"); - return 1; -} - -EXPORT_SYMBOL(ide_lock); - static int ide_bus_match(struct device *dev, struct device_driver *drv) { return 1; @@ -1288,11 +988,6 @@ static int __init ide_init(void) int ret; printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n"); - system_bus_speed = ide_system_bus_speed(); - - printk(KERN_INFO "ide: Assuming %dMHz system bus speed " - "for PIO modes%s\n", system_bus_speed, - idebus_parameter ? "" : "; override with idebus=xx"); ret = bus_register(&ide_bus_type); if (ret < 0) { @@ -1307,8 +1002,6 @@ static int __init ide_init(void) } ide_port_class->dev_release = ide_port_class_release; - init_ide_data(); - proc_ide_create(); return 0; @@ -1319,32 +1012,7 @@ out_port_class: return ret; } -#ifdef MODULE -static char *options = NULL; -module_param(options, charp, 0); -MODULE_LICENSE("GPL"); - -static void __init parse_options (char *line) -{ - char *next = line; - - if (line == NULL || !*line) - return; - while ((line = next) != NULL) { - if ((next = strchr(line,' ')) != NULL) - *next++ = 0; - if (!ide_setup(line)) - printk (KERN_INFO "Unknown option '%s'\n", line); - } -} - -int __init init_module (void) -{ - parse_options(options); - return ide_init(); -} - -void __exit cleanup_module (void) +static void __exit ide_exit(void) { proc_ide_destroy(); @@ -1353,10 +1021,7 @@ void __exit cleanup_module (void) bus_unregister(&ide_bus_type); } -#else /* !MODULE */ - -__setup("", ide_setup); - module_init(ide_init); +module_exit(ide_exit); -#endif /* MODULE */ +MODULE_LICENSE("GPL"); diff --git a/drivers/ide/legacy/ali14xx.c b/drivers/ide/legacy/ali14xx.c index 90c65cf97448..4ec19737f3c5 100644 --- a/drivers/ide/legacy/ali14xx.c +++ b/drivers/ide/legacy/ali14xx.c @@ -116,11 +116,12 @@ static void ali14xx_set_pio_mode(ide_drive_t *drive, const u8 pio) int time1, time2; u8 param1, param2, param3, param4; unsigned long flags; - int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50; + struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); /* calculate timing, according to PIO mode */ time1 = ide_pio_cycle_time(drive, pio); - time2 = ide_pio_timings[pio].active_time; + time2 = t->active; param3 = param1 = (time2 * bus_speed + 999) / 1000; param4 = param2 = (time1 * bus_speed + 999) / 1000 - param1; if (pio < 3) { diff --git a/drivers/ide/legacy/buddha.c b/drivers/ide/legacy/buddha.c index 9a1d27ef3f8a..0497e7f85b09 100644 --- a/drivers/ide/legacy/buddha.c +++ b/drivers/ide/legacy/buddha.c @@ -227,7 +227,6 @@ fail_base2: if (hwif) { u8 index = hwif->index; - ide_init_port_data(hwif, index); ide_init_port_hw(hwif, &hw); idx[i] = index; diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c index af11028b4794..129a812bb57f 100644 --- a/drivers/ide/legacy/falconide.c +++ b/drivers/ide/legacy/falconide.c @@ -111,7 +111,6 @@ static int __init falconide_init(void) u8 index = hwif->index; u8 idx[4] = { index, 0xff, 0xff, 0xff }; - ide_init_port_data(hwif, index); ide_init_port_hw(hwif, &hw); /* Atari has a byte-swapped IDE interface */ diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c index fed7d812761c..7e74b20202df 100644 --- a/drivers/ide/legacy/gayle.c +++ b/drivers/ide/legacy/gayle.c @@ -64,9 +64,7 @@ #define GAYLE_HAS_CONTROL_REG (!ide_doubler) #define GAYLE_IDEREG_SIZE (ide_doubler ? 0x1000 : 0x2000) -int ide_doubler = 0; /* support IDE doublers? */ -EXPORT_SYMBOL_GPL(ide_doubler); - +static int ide_doubler; module_param_named(doubler, ide_doubler, bool, 0); MODULE_PARM_DESC(doubler, "enable support for IDE doublers"); #endif /* CONFIG_BLK_DEV_IDEDOUBLER */ @@ -187,7 +185,6 @@ found: if (hwif) { u8 index = hwif->index; - ide_init_port_data(hwif, index); ide_init_port_hw(hwif, &hw); idx[i] = index; diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c index 4fe516df9f74..7bc8fd59ea9e 100644 --- a/drivers/ide/legacy/ht6560b.c +++ b/drivers/ide/legacy/ht6560b.c @@ -212,10 +212,11 @@ static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio) { int active_time, recovery_time; int active_cycles, recovery_cycles; - int bus_speed = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50; if (pio) { unsigned int cycle_time; + struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); cycle_time = ide_pio_cycle_time(drive, pio); @@ -224,10 +225,8 @@ static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio) * actual cycle time for recovery and activity * according system bus speed. */ - active_time = ide_pio_timings[pio].active_time; - recovery_time = cycle_time - - active_time - - ide_pio_timings[pio].setup_time; + active_time = t->active; + recovery_time = cycle_time - active_time - t->setup; /* * Cycle times should be Vesa bus cycles */ @@ -311,16 +310,16 @@ static void ht6560b_set_pio_mode(ide_drive_t *drive, const u8 pio) #endif } -static void __init ht6560b_port_init_devs(ide_hwif_t *hwif) +static void __init ht6560b_init_dev(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; /* Setting default configurations for drives. */ int t = (HT_CONFIG_DEFAULT << 8) | HT_TIMING_DEFAULT; if (hwif->channel) t |= (HT_SECONDARY_IF << 8); - hwif->drives[0].drive_data = t; - hwif->drives[1].drive_data = t; + drive->drive_data = t; } static int probe_ht6560b; @@ -329,7 +328,7 @@ module_param_named(probe, probe_ht6560b, bool, 0); MODULE_PARM_DESC(probe, "probe for HT6560B chipset"); static const struct ide_port_ops ht6560b_port_ops = { - .port_init_devs = ht6560b_port_init_devs, + .init_dev = ht6560b_init_dev, .set_pio_mode = ht6560b_set_pio_mode, .selectproc = ht6560b_selectproc, }; diff --git a/drivers/ide/legacy/ide-4drives.c b/drivers/ide/legacy/ide-4drives.c index ecae916a3385..89c8ff0a4d08 100644 --- a/drivers/ide/legacy/ide-4drives.c +++ b/drivers/ide/legacy/ide-4drives.c @@ -11,6 +11,21 @@ static int probe_4drives; module_param_named(probe, probe_4drives, bool, 0); MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port"); +static void ide_4drives_init_dev(ide_drive_t *drive) +{ + if (drive->hwif->channel) + drive->select.all ^= 0x20; +} + +static const struct ide_port_ops ide_4drives_port_ops = { + .init_dev = ide_4drives_init_dev, +}; + +static const struct ide_port_info ide_4drives_port_info = { + .port_ops = &ide_4drives_port_ops, + .host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA, +}; + static int __init ide_4drives_init(void) { ide_hwif_t *hwif, *mate; @@ -49,18 +64,10 @@ static int __init ide_4drives_init(void) mate = ide_find_port(); if (mate) { ide_init_port_hw(mate, &hw); - mate->drives[0].select.all ^= 0x20; - mate->drives[1].select.all ^= 0x20; idx[1] = mate->index; - - if (hwif) { - hwif->mate = mate; - mate->mate = hwif; - hwif->serialized = mate->serialized = 1; - } } - ide_device_add(idx, NULL); + ide_device_add(idx, &ide_4drives_port_info); return 0; } diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c index 3381424d70a1..b94d9709297f 100644 --- a/drivers/ide/legacy/ide-cs.c +++ b/drivers/ide/legacy/ide-cs.c @@ -154,6 +154,11 @@ static const struct ide_port_ops idecs_port_ops = { .quirkproc = ide_undecoded_slave, }; +static const struct ide_port_info idecs_port_info = { + .port_ops = &idecs_port_ops, + .host_flags = IDE_HFLAG_NO_DMA, +}; + static ide_hwif_t *idecs_register(unsigned long io, unsigned long ctl, unsigned long irq, struct pcmcia_device *handle) { @@ -187,13 +192,11 @@ static ide_hwif_t *idecs_register(unsigned long io, unsigned long ctl, i = hwif->index; - ide_init_port_data(hwif, i); ide_init_port_hw(hwif, &hw); - hwif->port_ops = &idecs_port_ops; idx[0] = i; - ide_device_add(idx, NULL); + ide_device_add(idx, &idecs_port_info); if (hwif->present) return hwif; diff --git a/drivers/ide/legacy/ide_platform.c b/drivers/ide/legacy/ide_platform.c index d3bc3f24e05d..a249562b34b5 100644 --- a/drivers/ide/legacy/ide_platform.c +++ b/drivers/ide/legacy/ide_platform.c @@ -44,6 +44,10 @@ static void __devinit plat_ide_setup_ports(hw_regs_t *hw, hw->chipset = ide_generic; } +static const struct ide_port_info platform_ide_port_info = { + .host_flags = IDE_HFLAG_NO_DMA, +}; + static int __devinit plat_ide_probe(struct platform_device *pdev) { struct resource *res_base, *res_alt, *res_irq; @@ -54,6 +58,7 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) int ret = 0; int mmio = 0; hw_regs_t hw; + struct ide_port_info d = platform_ide_port_info; pdata = pdev->dev.platform_data; @@ -102,13 +107,13 @@ static int __devinit plat_ide_probe(struct platform_device *pdev) ide_init_port_hw(hwif, &hw); if (mmio) { - hwif->host_flags = IDE_HFLAG_MMIO; + d.host_flags |= IDE_HFLAG_MMIO; default_hwif_mmiops(hwif); } idx[0] = hwif->index; - ide_device_add(idx, NULL); + ide_device_add(idx, &d); platform_set_drvdata(pdev, hwif); diff --git a/drivers/ide/legacy/macide.c b/drivers/ide/legacy/macide.c index 2e84290d0bcc..0a6195bcfeda 100644 --- a/drivers/ide/legacy/macide.c +++ b/drivers/ide/legacy/macide.c @@ -130,7 +130,6 @@ static int __init macide_init(void) u8 index = hwif->index; u8 idx[4] = { index, 0xff, 0xff, 0xff }; - ide_init_port_data(hwif, index); ide_init_port_hw(hwif, &hw); ide_device_add(idx, NULL); diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c index 8ff6e2d20834..9c2b9d078f69 100644 --- a/drivers/ide/legacy/q40ide.c +++ b/drivers/ide/legacy/q40ide.c @@ -142,7 +142,6 @@ static int __init q40ide_init(void) hwif = ide_find_port(); if (hwif) { - ide_init_port_data(hwif, hwif->index); ide_init_port_hw(hwif, &hw); /* Q40 has a byte-swapped IDE interface */ diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c index 6424af154325..2338f344ea24 100644 --- a/drivers/ide/legacy/qd65xx.c +++ b/drivers/ide/legacy/qd65xx.c @@ -110,7 +110,7 @@ static void qd65xx_select(ide_drive_t *drive) static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time) { - int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + int clk = ide_vlb_clk ? ide_vlb_clk : 50; u8 act_cyc, rec_cyc; if (clk <= 33) { @@ -132,7 +132,7 @@ static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery static u8 qd6580_compute_timing (int active_time, int recovery_time) { - int clk = ide_vlb_clk ? ide_vlb_clk : system_bus_clock(); + int clk = ide_vlb_clk ? ide_vlb_clk : 50; u8 act_cyc, rec_cyc; act_cyc = 17 - IDE_IN(active_time * clk / 1000 + 1, 2, 17); @@ -207,6 +207,7 @@ static void qd6500_set_pio_mode(ide_drive_t *drive, const u8 pio) static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio) { ide_hwif_t *hwif = drive->hwif; + struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); unsigned int cycle_time; int active_time = 175; int recovery_time = 415; /* worst case values from the dos driver */ @@ -236,7 +237,7 @@ static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio) active_time = 110; recovery_time = cycle_time - 120; } else { - active_time = ide_pio_timings[pio].active_time; + active_time = t->active; recovery_time = cycle_time - active_time; } } @@ -281,17 +282,18 @@ static int __init qd_testreg(int port) return (readreg != QD_TESTVAL); } -static void __init qd6500_port_init_devs(ide_hwif_t *hwif) +static void __init qd6500_init_dev(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; u8 base = (hwif->config_data & 0xff00) >> 8; u8 config = QD_CONFIG(hwif); - hwif->drives[0].drive_data = QD6500_DEF_DATA; - hwif->drives[1].drive_data = QD6500_DEF_DATA; + drive->drive_data = QD6500_DEF_DATA; } -static void __init qd6580_port_init_devs(ide_hwif_t *hwif) +static void __init qd6580_init_dev(ide_drive_t *drive) { + ide_hwif_t *hwif = drive->hwif; u16 t1, t2; u8 base = (hwif->config_data & 0xff00) >> 8; u8 config = QD_CONFIG(hwif); @@ -302,18 +304,17 @@ static void __init qd6580_port_init_devs(ide_hwif_t *hwif) } else t2 = t1 = hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA; - hwif->drives[0].drive_data = t1; - hwif->drives[1].drive_data = t2; + drive->drive_data = drive->select.b.unit ? t2 : t1; } static const struct ide_port_ops qd6500_port_ops = { - .port_init_devs = qd6500_port_init_devs, + .init_dev = qd6500_init_dev, .set_pio_mode = qd6500_set_pio_mode, .selectproc = qd65xx_select, }; static const struct ide_port_ops qd6580_port_ops = { - .port_init_devs = qd6580_port_init_devs, + .init_dev = qd6580_init_dev, .set_pio_mode = qd6580_set_pio_mode, .selectproc = qd65xx_select, }; diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c index 1a6c27b32498..48d57cae63c6 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c @@ -213,10 +213,8 @@ static int auide_build_dmatable(ide_drive_t *drive) { int i, iswrite, count = 0; ide_hwif_t *hwif = HWIF(drive); - struct request *rq = HWGROUP(drive)->rq; - - _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data; + _auide_hwif *ahwif = &auide_hwif; struct scatterlist *sg; iswrite = (rq_data_dir(rq) == WRITE); @@ -402,7 +400,7 @@ static const struct ide_dma_ops au1xxx_dma_ops = { static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d) { - _auide_hwif *auide = (_auide_hwif *)hwif->hwif_data; + _auide_hwif *auide = &auide_hwif; dbdev_tab_t source_dev_tab, target_dev_tab; u32 dev_id, tsize, devwidth, flags; @@ -463,7 +461,7 @@ static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d) #else static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d) { - _auide_hwif *auide = (_auide_hwif *)hwif->hwif_data; + _auide_hwif *auide = &auide_hwif; dbdev_tab_t source_dev_tab; int flags; @@ -600,8 +598,6 @@ static int au_ide_probe(struct device *dev) ide_init_port_hw(hwif, &hw); - hwif->dev = dev; - /* If the user has selected DDMA assisted copies, then set up a few local I/O function entry points */ @@ -610,11 +606,8 @@ static int au_ide_probe(struct device *dev) hwif->input_data = au1xxx_input_data; hwif->output_data = au1xxx_output_data; #endif - hwif->select_data = 0; /* no chipset-specific code */ - hwif->config_data = 0; /* no chipset-specific code */ auide_hwif.hwif = hwif; - hwif->hwif_data = &auide_hwif; idx[0] = hwif->index; diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c index 52fee3d2771a..9f1212cc4aed 100644 --- a/drivers/ide/mips/swarm.c +++ b/drivers/ide/mips/swarm.c @@ -61,6 +61,11 @@ static struct resource swarm_ide_resource = { static struct platform_device *swarm_ide_dev; +static const struct ide_port_info swarm_port_info = { + .name = DRV_NAME, + .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA, +}; + /* * swarm_ide_probe - if the board header indicates the existence of * Generic Bus IDE, allocate a HWIF for it. @@ -77,12 +82,6 @@ static int __devinit swarm_ide_probe(struct device *dev) if (!SIBYTE_HAVE_IDE) return -ENODEV; - hwif = ide_find_port(); - if (hwif == NULL) { - printk(KERN_ERR DRV_NAME ": no free slot for interface\n"); - return -ENOMEM; - } - base = ioremap(A_IO_EXT_BASE, 0x800); offset = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_START_ADDR, IDE_CS)); size = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_MULT_SIZE, IDE_CS)); @@ -109,10 +108,6 @@ static int __devinit swarm_ide_probe(struct device *dev) base = ioremap(offset, size); - /* Setup MMIO ops. */ - hwif->host_flags = IDE_HFLAG_MMIO; - default_hwif_mmiops(hwif); - for (i = 0; i <= 7; i++) hw.io_ports_array[i] = (unsigned long)(base + ((0x1f0 + i) << 5)); @@ -121,15 +116,26 @@ static int __devinit swarm_ide_probe(struct device *dev) hw.irq = K_INT_GB_IDE; hw.chipset = ide_generic; + hwif = ide_find_port_slot(&swarm_port_info); + if (hwif == NULL) + goto err; + ide_init_port_hw(hwif, &hw); + /* Setup MMIO ops. */ + default_hwif_mmiops(hwif); + idx[0] = hwif->index; - ide_device_add(idx, NULL); + ide_device_add(idx, &swarm_port_info); dev_set_drvdata(dev, hwif); return 0; +err: + release_resource(&swarm_ide_resource); + iounmap(base); + return -ENOMEM; } static struct device_driver swarm_ide_driver = { diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c index 7f46c224b7c4..ae7a4329a581 100644 --- a/drivers/ide/pci/aec62xx.c +++ b/drivers/ide/pci/aec62xx.c @@ -140,7 +140,7 @@ static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio) static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name) { - int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock(); + int bus_speed = ide_pci_clk ? ide_pci_clk : 33; if (bus_speed <= 33) pci_set_drvdata(dev, (void *) aec6xxx_33_base); diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c index f2129d5e07f2..80d19c0eb780 100644 --- a/drivers/ide/pci/alim15x3.c +++ b/drivers/ide/pci/alim15x3.c @@ -69,22 +69,20 @@ static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = to_pci_dev(hwif->dev); - int s_time, a_time, c_time; + struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); + int s_time = t->setup, a_time = t->active, c_time = t->cycle; u8 s_clc, a_clc, r_clc; unsigned long flags; - int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock(); + int bus_speed = ide_pci_clk ? ide_pci_clk : 33; int port = hwif->channel ? 0x5c : 0x58; int portFIFO = hwif->channel ? 0x55 : 0x54; u8 cd_dma_fifo = 0; int unit = drive->select.b.unit & 1; - s_time = ide_pio_timings[pio].setup_time; - a_time = ide_pio_timings[pio].active_time; if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8) s_clc = 0; if ((a_clc = (a_time * bus_speed + 999) / 1000) >= 8) a_clc = 0; - c_time = ide_pio_timings[pio].cycle_time; if (!(r_clc = (c_time * bus_speed + 999) / 1000 - a_clc - s_clc)) { r_clc = 1; diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c index efcf54338be7..0bfcdd0e77b3 100644 --- a/drivers/ide/pci/amd74xx.c +++ b/drivers/ide/pci/amd74xx.c @@ -21,8 +21,6 @@ #include <linux/init.h> #include <linux/ide.h> -#include "ide-timing.h" - enum { AMD_IDE_CONFIG = 0x41, AMD_CABLE_DETECT = 0x42, @@ -53,20 +51,20 @@ static void amd_set_speed(struct pci_dev *dev, u8 dn, u8 udma_mask, u8 t = 0, offset = amd_offset(dev); pci_read_config_byte(dev, AMD_ADDRESS_SETUP + offset, &t); - t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); + t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); pci_write_config_byte(dev, AMD_ADDRESS_SETUP + offset, t); pci_write_config_byte(dev, AMD_8BIT_TIMING + offset + (1 - (dn >> 1)), - ((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1)); + ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1)); pci_write_config_byte(dev, AMD_DRIVE_TIMING + offset + (3 - dn), - ((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1)); + ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1)); switch (udma_mask) { - case ATA_UDMA2: t = timing->udma ? (0xc0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break; - case ATA_UDMA4: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 2, 10)]) : 0x03; break; - case ATA_UDMA5: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 1, 10)]) : 0x03; break; - case ATA_UDMA6: t = timing->udma ? (0xc0 | amd_cyc2udma[FIT(timing->udma, 1, 15)]) : 0x03; break; + case ATA_UDMA2: t = timing->udma ? (0xc0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break; + case ATA_UDMA4: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 2, 10)]) : 0x03; break; + case ATA_UDMA5: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 10)]) : 0x03; break; + case ATA_UDMA6: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 15)]) : 0x03; break; default: return; } @@ -179,7 +177,7 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, * Determine the system bus clock. */ - amd_clock = (ide_pci_clk ? ide_pci_clk : system_bus_clock()) * 1000; + amd_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; switch (amd_clock) { case 33000: amd_clock = 33333; break; diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c index b38a1980dcd5..1ad1e23e3105 100644 --- a/drivers/ide/pci/cmd640.c +++ b/drivers/ide/pci/cmd640.c @@ -521,21 +521,23 @@ static void program_drive_counts(ide_drive_t *drive, unsigned int index) static void cmd640_set_mode(ide_drive_t *drive, unsigned int index, u8 pio_mode, unsigned int cycle_time) { + struct ide_timing *t; int setup_time, active_time, recovery_time, clock_time; u8 setup_count, active_count, recovery_count, recovery_count2, cycle_count; int bus_speed; - if (cmd640_vlb && ide_vlb_clk) - bus_speed = ide_vlb_clk; - else if (!cmd640_vlb && ide_pci_clk) - bus_speed = ide_pci_clk; + if (cmd640_vlb) + bus_speed = ide_vlb_clk ? ide_vlb_clk : 50; else - bus_speed = system_bus_clock(); + bus_speed = ide_pci_clk ? ide_pci_clk : 33; if (pio_mode > 5) pio_mode = 5; - setup_time = ide_pio_timings[pio_mode].setup_time; - active_time = ide_pio_timings[pio_mode].active_time; + + t = ide_timing_find_mode(XFER_PIO_0 + pio_mode); + setup_time = t->setup; + active_time = t->active; + recovery_time = cycle_time - (setup_time + active_time); clock_time = 1000 / bus_speed; cycle_count = DIV_ROUND_UP(cycle_time, clock_time); @@ -609,11 +611,40 @@ static void cmd640_set_pio_mode(ide_drive_t *drive, const u8 pio) display_clocks(index); } +#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ + +static void cmd640_init_dev(ide_drive_t *drive) +{ + unsigned int i = drive->hwif->channel * 2 + drive->select.b.unit; + +#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED + /* + * Reset timing to the slowest speed and turn off prefetch. + * This way, the drive identify code has a better chance. + */ + setup_counts[i] = 4; /* max possible */ + active_counts[i] = 16; /* max possible */ + recovery_counts[i] = 16; /* max possible */ + program_drive_counts(drive, i); + set_prefetch_mode(drive, i, 0); + printk(KERN_INFO DRV_NAME ": drive%d timings/prefetch cleared\n", i); +#else + /* + * Set the drive unmask flags to match the prefetch setting. + */ + check_prefetch(drive, i); + printk(KERN_INFO DRV_NAME ": drive%d timings/prefetch(%s) preserved\n", + i, drive->no_io_32bit ? "off" : "on"); +#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ +} + static const struct ide_port_ops cmd640_port_ops = { + .init_dev = cmd640_init_dev, +#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED .set_pio_mode = cmd640_set_pio_mode, +#endif }; -#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ static int pci_conf1(void) { @@ -656,10 +687,8 @@ static const struct ide_port_info cmd640_port_info __initdata = { IDE_HFLAG_NO_DMA | IDE_HFLAG_ABUSE_PREFETCH | IDE_HFLAG_ABUSE_FAST_DEVSEL, -#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED .port_ops = &cmd640_port_ops, .pio_mask = ATA_PIO5, -#endif }; static int cmd640x_init_one(unsigned long base, unsigned long ctl) @@ -685,12 +714,8 @@ static int cmd640x_init_one(unsigned long base, unsigned long ctl) */ static int __init cmd640x_init(void) { -#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED - int second_port_toggled = 0; -#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ int second_port_cmd640 = 0, rc; const char *bus_type, *port2; - unsigned int index; u8 b, cfr; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; hw_regs_t hw[2]; @@ -776,88 +801,44 @@ static int __init cmd640x_init(void) put_cmd640_reg(CMDTIM, 0); put_cmd640_reg(BRST, 0x40); - cmd_hwif1 = ide_find_port(); + b = get_cmd640_reg(CNTRL); /* * Try to enable the secondary interface, if not already enabled */ - if (cmd_hwif1 && - cmd_hwif1->drives[0].noprobe && cmd_hwif1->drives[1].noprobe) { - port2 = "not probed"; + if (secondary_port_responding()) { + if ((b & CNTRL_ENA_2ND)) { + second_port_cmd640 = 1; + port2 = "okay"; + } else if (cmd640_vlb) { + second_port_cmd640 = 1; + port2 = "alive"; + } else + port2 = "not cmd640"; } else { - b = get_cmd640_reg(CNTRL); + put_cmd640_reg(CNTRL, b ^ CNTRL_ENA_2ND); /* toggle the bit */ if (secondary_port_responding()) { - if ((b & CNTRL_ENA_2ND)) { - second_port_cmd640 = 1; - port2 = "okay"; - } else if (cmd640_vlb) { - second_port_cmd640 = 1; - port2 = "alive"; - } else - port2 = "not cmd640"; + second_port_cmd640 = 1; + port2 = "enabled"; } else { - put_cmd640_reg(CNTRL, b ^ CNTRL_ENA_2ND); /* toggle the bit */ - if (secondary_port_responding()) { - second_port_cmd640 = 1; -#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED - second_port_toggled = 1; -#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ - port2 = "enabled"; - } else { - put_cmd640_reg(CNTRL, b); /* restore original setting */ - port2 = "not responding"; - } + put_cmd640_reg(CNTRL, b); /* restore original setting */ + port2 = "not responding"; } } /* * Initialize data for secondary cmd640 port, if enabled */ - if (second_port_cmd640 && cmd_hwif1) { - ide_init_port_hw(cmd_hwif1, &hw[1]); - idx[1] = cmd_hwif1->index; + if (second_port_cmd640) { + cmd_hwif1 = ide_find_port(); + if (cmd_hwif1) { + ide_init_port_hw(cmd_hwif1, &hw[1]); + idx[1] = cmd_hwif1->index; + } } printk(KERN_INFO "cmd640: %sserialized, secondary interface %s\n", second_port_cmd640 ? "" : "not ", port2); - /* - * Establish initial timings/prefetch for all drives. - * Do not unnecessarily disturb any prior BIOS setup of these. - */ - for (index = 0; index < (2 + (second_port_cmd640 << 1)); index++) { - ide_drive_t *drive; - - if (index > 1) { - if (cmd_hwif1 == NULL) - continue; - drive = &cmd_hwif1->drives[index & 1]; - } else { - if (cmd_hwif0 == NULL) - continue; - drive = &cmd_hwif0->drives[index & 1]; - } - -#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED - /* - * Reset timing to the slowest speed and turn off prefetch. - * This way, the drive identify code has a better chance. - */ - setup_counts [index] = 4; /* max possible */ - active_counts [index] = 16; /* max possible */ - recovery_counts [index] = 16; /* max possible */ - program_drive_counts(drive, index); - set_prefetch_mode(drive, index, 0); - printk("cmd640: drive%d timings/prefetch cleared\n", index); -#else - /* - * Set the drive unmask flags to match the prefetch setting - */ - check_prefetch(drive, index); - printk("cmd640: drive%d timings/prefetch(%s) preserved\n", - index, drive->no_io_32bit ? "off" : "on"); -#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ - } - #ifdef CMD640_DUMP_REGS cmd640_dump_regs(); #endif diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c index 08674711d089..cfa784bacf48 100644 --- a/drivers/ide/pci/cmd64x.c +++ b/drivers/ide/pci/cmd64x.c @@ -69,7 +69,7 @@ static u8 quantize_timing(int timing, int quant) static void program_cycle_times (ide_drive_t *drive, int cycle_time, int active_time) { struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - int clock_time = 1000 / (ide_pci_clk ? ide_pci_clk : system_bus_clock()); + int clock_time = 1000 / (ide_pci_clk ? ide_pci_clk : 33); u8 cycle_count, active_count, recovery_count, drwtim; static const u8 recovery_values[] = {15, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0}; @@ -116,6 +116,7 @@ static void cmd64x_tune_pio(ide_drive_t *drive, const u8 pio) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = to_pci_dev(hwif->dev); + struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); unsigned int cycle_time; u8 setup_count, arttim = 0; @@ -124,11 +125,10 @@ static void cmd64x_tune_pio(ide_drive_t *drive, const u8 pio) cycle_time = ide_pio_cycle_time(drive, pio); - program_cycle_times(drive, cycle_time, - ide_pio_timings[pio].active_time); + program_cycle_times(drive, cycle_time, t->active); - setup_count = quantize_timing(ide_pio_timings[pio].setup_time, - 1000 / (ide_pci_clk ? ide_pci_clk : system_bus_clock())); + setup_count = quantize_timing(t->setup, + 1000 / (ide_pci_clk ? ide_pci_clk : 33)); /* * The primary channel has individual address setup timing registers diff --git a/drivers/ide/pci/cs5535.c b/drivers/ide/pci/cs5535.c index 99fe91a191b8..dc97c48623f3 100644 --- a/drivers/ide/pci/cs5535.c +++ b/drivers/ide/pci/cs5535.c @@ -26,8 +26,6 @@ #include <linux/pci.h> #include <linux/ide.h> -#include "ide-timing.h" - #define MSR_ATAC_BASE 0x51300000 #define ATAC_GLD_MSR_CAP (MSR_ATAC_BASE+0) #define ATAC_GLD_MSR_CONFIG (MSR_ATAC_BASE+0x01) @@ -75,13 +73,11 @@ static unsigned int cs5535_udma_timings[5] = */ static void cs5535_set_speed(ide_drive_t *drive, const u8 speed) { - u32 reg = 0, dummy; int unit = drive->select.b.unit; - /* Set the PIO timings */ - if ((speed & XFER_MODE) == XFER_PIO) { + if (speed < XFER_SW_DMA_0) { ide_drive_t *pair = ide_get_paired_drive(drive); u8 cmd, pioa; diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c index 77cc22c2ad45..e14ad5530fa4 100644 --- a/drivers/ide/pci/cy82c693.c +++ b/drivers/ide/pci/cy82c693.c @@ -133,23 +133,22 @@ static int calc_clk(int time, int bus_speed) */ static void compute_clocks(u8 pio, pio_clocks_t *p_pclk) { + struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); int clk1, clk2; - int bus_speed = ide_pci_clk ? ide_pci_clk : system_bus_clock(); + int bus_speed = ide_pci_clk ? ide_pci_clk : 33; /* we don't check against CY82C693's min and max speed, * so you can play with the idebus=xx parameter */ /* let's calc the address setup time clocks */ - p_pclk->address_time = (u8)calc_clk(ide_pio_timings[pio].setup_time, bus_speed); + p_pclk->address_time = (u8)calc_clk(t->setup, bus_speed); /* let's calc the active and recovery time clocks */ - clk1 = calc_clk(ide_pio_timings[pio].active_time, bus_speed); + clk1 = calc_clk(t->active, bus_speed); /* calc recovery timing */ - clk2 = ide_pio_timings[pio].cycle_time - - ide_pio_timings[pio].active_time - - ide_pio_timings[pio].setup_time; + clk2 = t->cycle - t->active - t->setup; clk2 = calc_clk(clk2, bus_speed); diff --git a/drivers/ide/pci/delkin_cb.c b/drivers/ide/pci/delkin_cb.c index af0f30051d5a..0106e2a2df77 100644 --- a/drivers/ide/pci/delkin_cb.c +++ b/drivers/ide/pci/delkin_cb.c @@ -93,7 +93,6 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) i = hwif->index; - ide_init_port_data(hwif, i); ide_init_port_hw(hwif, &hw); idx[0] = i; diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index c929dadaaaff..397c6cbe953c 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -759,8 +759,7 @@ static void hpt3xx_maskproc(ide_drive_t *drive, int mask) enable_irq (hwif->irq); } } else - outb(mask ? (drive->ctl | 2) : (drive->ctl & ~2), - hwif->io_ports.ctl_addr); + outb(ATA_DEVCTL_OBS | (mask ? 2 : 0), hwif->io_ports.ctl_addr); } /* diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index fec4955f449b..e427080e36a5 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -76,7 +76,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) } /* be sure we're looking at the low order bits */ - outb(drive->ctl & ~0x80, io_ports->ctl_addr); + outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = inb(io_ports->nsect_addr); @@ -90,7 +90,7 @@ static void superio_tf_read(ide_drive_t *drive, ide_task_t *task) tf->device = superio_ide_inb(io_ports->device_addr); if (task->tf_flags & IDE_TFLAG_LBA48) { - outb(drive->ctl | 0x80, io_ports->ctl_addr); + outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) tf->hob_feature = inb(io_ports->feature_addr); diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c index 910fb00deb71..25c32923bebc 100644 --- a/drivers/ide/pci/scc_pata.c +++ b/drivers/ide/pci/scc_pata.c @@ -148,11 +148,8 @@ static void scc_ide_outb(u8 addr, unsigned long port) out_be32((void*)port, addr); } -static void -scc_ide_outbsync(ide_drive_t * drive, u8 addr, unsigned long port) +static void scc_ide_outbsync(ide_hwif_t *hwif, u8 addr, unsigned long port) { - ide_hwif_t *hwif = HWIF(drive); - out_be32((void*)port, addr); eieio(); in_be32((void*)(hwif->dma_base + 0x01c)); @@ -561,12 +558,9 @@ static int scc_ide_setup_pci_device(struct pci_dev *dev, u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; int i; - hwif = ide_find_port(); - if (hwif == NULL) { - printk(KERN_ERR "%s: too many IDE interfaces, " - "no room in table\n", SCC_PATA_NAME); + hwif = ide_find_port_slot(d); + if (hwif == NULL) return -ENOMEM; - } memset(&hw, 0, sizeof(hw)); for (i = 0; i <= 8; i++) @@ -662,8 +656,6 @@ static void scc_tf_load(ide_drive_t *drive, ide_task_t *task) if (task->tf_flags & IDE_TFLAG_FLAGGED) HIHI = 0xFF; - ide_set_irq(drive, 1); - if (task->tf_flags & IDE_TFLAG_OUT_DATA) out_be32((void *)io_ports->data_addr, (tf->hob_data << 8) | tf->data); @@ -708,7 +700,7 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task) } /* be sure we're looking at the low order bits */ - scc_ide_outb(drive->ctl & ~0x80, io_ports->ctl_addr); + scc_ide_outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = scc_ide_inb(io_ports->nsect_addr); @@ -722,7 +714,7 @@ static void scc_tf_read(ide_drive_t *drive, ide_task_t *task) tf->device = scc_ide_inb(io_ports->device_addr); if (task->tf_flags & IDE_TFLAG_LBA48) { - scc_ide_outb(drive->ctl | 0x80, io_ports->ctl_addr); + scc_ide_outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr); if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) tf->hob_feature = scc_ide_inb(io_ports->feature_addr); @@ -795,7 +787,6 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif) hwif->dma_base = dma_base; hwif->config_data = ports->ctl; - hwif->mmio = 1; } /** diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 16a0bce17d69..c79ff5b41088 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -111,7 +111,7 @@ sgiioc4_init_hwif_ports(hw_regs_t * hw, unsigned long data_port, static void sgiioc4_maskproc(ide_drive_t * drive, int mask) { - writeb(mask ? (drive->ctl | 2) : (drive->ctl & ~2), + writeb(ATA_DEVCTL_OBS | (mask ? 2 : 0), (void __iomem *)drive->hwif->io_ports.ctl_addr); } @@ -369,8 +369,7 @@ ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d) hwif->sg_max_nents = IOC4_PRD_ENTRIES; pad = pci_alloc_consistent(dev, IOC4_IDE_CACHELINE_SIZE, - (dma_addr_t *) &(hwif->dma_status)); - + (dma_addr_t *)&hwif->extra_base); if (pad) { ide_set_hwifdata(hwif, pad); return 0; @@ -439,7 +438,7 @@ sgiioc4_configure_for_dma(int dma_direction, ide_drive_t * drive) /* Address of the Ending DMA */ memset(ide_get_hwifdata(hwif), 0, IOC4_IDE_CACHELINE_SIZE); - ending_dma_addr = cpu_to_le32(hwif->dma_status); + ending_dma_addr = cpu_to_le32(hwif->extra_base); writel(ending_dma_addr, (void __iomem *)(dma_base + IOC4_DMA_END_ADDR * 4)); writel(dma_direction, (void __iomem *)ioc4_dma_addr); @@ -569,6 +568,7 @@ static const struct ide_dma_ops sgiioc4_dma_ops = { }; static const struct ide_port_info sgiioc4_port_info __devinitdata = { + .name = DRV_NAME, .chipset = ide_pci, .init_dma = ide_dma_sgiioc4, .port_ops = &sgiioc4_port_ops, @@ -588,13 +588,6 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) hw_regs_t hw; struct ide_port_info d = sgiioc4_port_info; - hwif = ide_find_port(); - if (hwif == NULL) { - printk(KERN_ERR "%s: too many IDE interfaces, no room in table\n", - DRV_NAME); - return -ENOMEM; - } - /* Get the CmdBlk and CtrlBlk Base Registers */ bar0 = pci_resource_start(dev, 0); virt_base = ioremap(bar0, pci_resource_len(dev, 0)); @@ -609,11 +602,11 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) cmd_phys_base = bar0 + IOC4_CMD_OFFSET; if (!request_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE, - hwif->name)) { + DRV_NAME)) { printk(KERN_ERR "%s : %s -- ERROR, Addresses " "0x%p to 0x%p ALREADY in use\n", - __func__, hwif->name, (void *) cmd_phys_base, + __func__, DRV_NAME, (void *) cmd_phys_base, (void *) cmd_phys_base + IOC4_CMD_CTL_BLK_SIZE); return -ENOMEM; } @@ -624,9 +617,12 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) hw.irq = dev->irq; hw.chipset = ide_pci; hw.dev = &dev->dev; - ide_init_port_hw(hwif, &hw); - hwif->dev = &dev->dev; + hwif = ide_find_port_slot(&d); + if (hwif == NULL) + goto err; + + ide_init_port_hw(hwif, &hw); /* The IOC4 uses MMIO rather than Port IO. */ default_hwif_mmiops(hwif); @@ -642,6 +638,10 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) return -EIO; return 0; +err: + release_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE); + iounmap(virt_base); + return -ENOMEM; } static unsigned int __devinit diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c index 0006b9e58567..b75e9bb390a7 100644 --- a/drivers/ide/pci/siimage.c +++ b/drivers/ide/pci/siimage.c @@ -94,7 +94,7 @@ static unsigned long siimage_selreg(ide_hwif_t *hwif, int r) unsigned long base = (unsigned long)hwif->hwif_data; base += 0xA0 + r; - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) base += hwif->channel << 6; else base += hwif->channel << 4; @@ -117,7 +117,7 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r) unsigned long base = (unsigned long)hwif->hwif_data; base += 0xA0 + r; - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) base += hwif->channel << 6; else base += hwif->channel << 4; @@ -190,7 +190,9 @@ static u8 sil_pata_udma_filter(ide_drive_t *drive) unsigned long base = (unsigned long)hwif->hwif_data; u8 scsc, mask = 0; - scsc = sil_ioread8(dev, base + (hwif->mmio ? 0x4A : 0x8A)); + base += (hwif->host_flags & IDE_HFLAG_MMIO) ? 0x4A : 0x8A; + + scsc = sil_ioread8(dev, base); switch (scsc & 0x30) { case 0x10: /* 133 */ @@ -238,8 +240,9 @@ static void sil_set_pio_mode(ide_drive_t *drive, u8 pio) unsigned long tfaddr = siimage_selreg(hwif, 0x02); unsigned long base = (unsigned long)hwif->hwif_data; u8 tf_pio = pio; - u8 addr_mask = hwif->channel ? (hwif->mmio ? 0xF4 : 0x84) - : (hwif->mmio ? 0xB4 : 0x80); + u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; + u8 addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84) + : (mmio ? 0xB4 : 0x80); u8 mode = 0; u8 unit = drive->select.b.unit; @@ -290,13 +293,13 @@ static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed) u16 ultra = 0, multi = 0; u8 mode = 0, unit = drive->select.b.unit; unsigned long base = (unsigned long)hwif->hwif_data; - u8 scsc = 0, addr_mask = hwif->channel ? - (hwif->mmio ? 0xF4 : 0x84) : - (hwif->mmio ? 0xB4 : 0x80); + u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; + u8 scsc = 0, addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84) + : (mmio ? 0xB4 : 0x80); unsigned long ma = siimage_seldev(drive, 0x08); unsigned long ua = siimage_seldev(drive, 0x0C); - scsc = sil_ioread8 (dev, base + (hwif->mmio ? 0x4A : 0x8A)); + scsc = sil_ioread8 (dev, base + (mmio ? 0x4A : 0x8A)); mode = sil_ioread8 (dev, base + addr_mask); multi = sil_ioread16(dev, ma); ultra = sil_ioread16(dev, ua); @@ -391,7 +394,7 @@ static int siimage_mmio_dma_test_irq(ide_drive_t *drive) static int siimage_dma_test_irq(ide_drive_t *drive) { - if (drive->hwif->mmio) + if (drive->hwif->host_flags & IDE_HFLAG_MMIO) return siimage_mmio_dma_test_irq(drive); else return siimage_io_dma_test_irq(drive); @@ -640,8 +643,6 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif) hwif->irq = dev->irq; hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00); - - hwif->mmio = 1; } static int is_dev_seagate_sata(ide_drive_t *drive) diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c index e127eb25ab63..2389945ca95d 100644 --- a/drivers/ide/pci/sis5513.c +++ b/drivers/ide/pci/sis5513.c @@ -52,8 +52,6 @@ #include <linux/init.h> #include <linux/ide.h> -#include "ide-timing.h" - /* registers layout and init values are chipset family dependant */ #define ATA_16 0x01 @@ -616,7 +614,6 @@ MODULE_LICENSE("GPL"); /* * TODO: * - CLEANUP - * - Use drivers/ide/ide-timing.h ! * - More checks in the config registers (force values instead of * relying on the BIOS setting them correctly). * - Further optimisations ? diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c index ce84fa045d39..6efbde297174 100644 --- a/drivers/ide/pci/sl82c105.c +++ b/drivers/ide/pci/sl82c105.c @@ -47,10 +47,11 @@ */ static unsigned int get_pio_timings(ide_drive_t *drive, u8 pio) { + struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); unsigned int cmd_on, cmd_off; u8 iordy = 0; - cmd_on = (ide_pio_timings[pio].active_time + 29) / 30; + cmd_on = (t->active + 29) / 30; cmd_off = (ide_pio_cycle_time(drive, pio) - 30 * cmd_on + 29) / 30; if (cmd_on == 0) diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index 566e0ecb8db1..e47384c70c40 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c @@ -35,8 +35,6 @@ #include <asm/processor.h> #endif -#include "ide-timing.h" - #define VIA_IDE_ENABLE 0x40 #define VIA_IDE_CONFIG 0x41 #define VIA_FIFO_CONFIG 0x43 @@ -120,21 +118,21 @@ static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing) if (~vdev->via_config->flags & VIA_BAD_AST) { pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t); - t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); + t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); pci_write_config_byte(dev, VIA_ADDRESS_SETUP, t); } pci_write_config_byte(dev, VIA_8BIT_TIMING + (1 - (dn >> 1)), - ((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1)); + ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1)); pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn), - ((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1)); + ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1)); switch (vdev->via_config->udma_mask) { - case ATA_UDMA2: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break; - case ATA_UDMA4: t = timing->udma ? (0xe8 | (FIT(timing->udma, 2, 9) - 2)) : 0x0f; break; - case ATA_UDMA5: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break; - case ATA_UDMA6: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break; + case ATA_UDMA2: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break; + case ATA_UDMA4: t = timing->udma ? (0xe8 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x0f; break; + case ATA_UDMA5: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break; + case ATA_UDMA6: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break; default: return; } @@ -340,7 +338,7 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const * Determine system bus clock. */ - via_clock = (ide_pci_clk ? ide_pci_clk : system_bus_clock()) * 1000; + via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; switch (via_clock) { case 33000: via_clock = 33333; break; diff --git a/drivers/ide/ppc/Makefile b/drivers/ide/ppc/Makefile index 65af5848b28c..74e52adcdf4b 100644 --- a/drivers/ide/ppc/Makefile +++ b/drivers/ide/ppc/Makefile @@ -1,3 +1,2 @@ obj-$(CONFIG_BLK_DEV_IDE_PMAC) += pmac.o -obj-$(CONFIG_BLK_DEV_MPC8xx_IDE) += mpc8xx.o diff --git a/drivers/ide/ppc/mpc8xx.c b/drivers/ide/ppc/mpc8xx.c deleted file mode 100644 index 236f9c38e519..000000000000 --- a/drivers/ide/ppc/mpc8xx.c +++ /dev/null @@ -1,851 +0,0 @@ -/* - * Copyright (C) 2000, 2001 Wolfgang Denk, wd@denx.de - * Modified for direct IDE interface - * by Thomas Lange, thomas@corelatus.com - * Modified for direct IDE interface on 8xx without using the PCMCIA - * controller - * by Steven.Scholz@imc-berlin.de - * Moved out of arch/ppc/kernel/m8xx_setup.c, other minor cleanups - * by Mathew Locke <mattl@mvista.com> - */ - -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/slab.h> -#include <linux/user.h> -#include <linux/tty.h> -#include <linux/major.h> -#include <linux/interrupt.h> -#include <linux/reboot.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/ide.h> -#include <linux/bootmem.h> - -#include <asm/mpc8xx.h> -#include <asm/mmu.h> -#include <asm/processor.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/ide.h> -#include <asm/8xx_immap.h> -#include <asm/machdep.h> -#include <asm/irq.h> - -#define DRV_NAME "ide-mpc8xx" - -static int identify (volatile u8 *p); -static void print_fixed (volatile u8 *p); -static void print_funcid (int func); -static int check_ide_device (unsigned long base); - -static void ide_interrupt_ack (void *dev); -static void m8xx_ide_set_pio_mode(ide_drive_t *drive, const u8 pio); - -typedef struct ide_ioport_desc { - unsigned long base_off; /* Offset to PCMCIA memory */ - unsigned long reg_off[IDE_NR_PORTS]; /* controller register offsets */ - int irq; /* IRQ */ -} ide_ioport_desc_t; - -ide_ioport_desc_t ioport_dsc[MAX_HWIFS] = { -#ifdef IDE0_BASE_OFFSET - { IDE0_BASE_OFFSET, - { - IDE0_DATA_REG_OFFSET, - IDE0_ERROR_REG_OFFSET, - IDE0_NSECTOR_REG_OFFSET, - IDE0_SECTOR_REG_OFFSET, - IDE0_LCYL_REG_OFFSET, - IDE0_HCYL_REG_OFFSET, - IDE0_SELECT_REG_OFFSET, - IDE0_STATUS_REG_OFFSET, - IDE0_CONTROL_REG_OFFSET, - IDE0_IRQ_REG_OFFSET, - }, - IDE0_INTERRUPT, - }, -#ifdef IDE1_BASE_OFFSET - { IDE1_BASE_OFFSET, - { - IDE1_DATA_REG_OFFSET, - IDE1_ERROR_REG_OFFSET, - IDE1_NSECTOR_REG_OFFSET, - IDE1_SECTOR_REG_OFFSET, - IDE1_LCYL_REG_OFFSET, - IDE1_HCYL_REG_OFFSET, - IDE1_SELECT_REG_OFFSET, - IDE1_STATUS_REG_OFFSET, - IDE1_CONTROL_REG_OFFSET, - IDE1_IRQ_REG_OFFSET, - }, - IDE1_INTERRUPT, - }, -#endif /* IDE1_BASE_OFFSET */ -#endif /* IDE0_BASE_OFFSET */ -}; - -ide_pio_timings_t ide_pio_clocks[6]; -int hold_time[6] = {30, 20, 15, 10, 10, 10 }; /* PIO Mode 5 with IORDY (nonstandard) */ - -/* - * Warning: only 1 (ONE) PCMCIA slot supported here, - * which must be correctly initialized by the firmware (PPCBoot). - */ -static int _slot_ = -1; /* will be read from PCMCIA registers */ - -/* Make clock cycles and always round up */ -#define PCMCIA_MK_CLKS( t, T ) (( (t) * ((T)/1000000) + 999U ) / 1000U ) - -#define M8XX_PCMCIA_CD2(slot) (0x10000000 >> (slot << 4)) -#define M8XX_PCMCIA_CD1(slot) (0x08000000 >> (slot << 4)) - -/* - * The TQM850L hardware has two pins swapped! Grrrrgh! - */ -#ifdef CONFIG_TQM850L -#define __MY_PCMCIA_GCRX_CXRESET PCMCIA_GCRX_CXOE -#define __MY_PCMCIA_GCRX_CXOE PCMCIA_GCRX_CXRESET -#else -#define __MY_PCMCIA_GCRX_CXRESET PCMCIA_GCRX_CXRESET -#define __MY_PCMCIA_GCRX_CXOE PCMCIA_GCRX_CXOE -#endif - -#if defined(CONFIG_BLK_DEV_MPC8xx_IDE) && defined(CONFIG_IDE_8xx_PCCARD) -#define PCMCIA_SCHLVL IDE0_INTERRUPT /* Status Change Interrupt Level */ -static int pcmcia_schlvl = PCMCIA_SCHLVL; -#endif - -/* - * See include/linux/ide.h for definition of hw_regs_t (p, base) - */ - -/* - * m8xx_ide_init_ports() for a direct IDE interface _using_ - * MPC8xx's internal PCMCIA interface - */ -#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_DIRECT) -static int __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port) -{ - unsigned long *p = hw->io_ports_array; - int i; - - typedef struct { - ulong br; - ulong or; - } pcmcia_win_t; - volatile pcmcia_win_t *win; - volatile pcmconf8xx_t *pcmp; - - uint *pgcrx; - u32 pcmcia_phy_base; - u32 pcmcia_phy_end; - static unsigned long pcmcia_base = 0; - unsigned long base; - - *p = 0; - - pcmp = (pcmconf8xx_t *)(&(((immap_t *)IMAP_ADDR)->im_pcmcia)); - - if (!pcmcia_base) { - /* - * Read out PCMCIA registers. Since the reset values - * are undefined, we sure hope that they have been - * set up by firmware - */ - - /* Scan all registers for valid settings */ - pcmcia_phy_base = 0xFFFFFFFF; - pcmcia_phy_end = 0; - /* br0 is start of brX and orX regs */ - win = (pcmcia_win_t *) \ - (&(((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0)); - for (i = 0; i < 8; i++) { - if (win->or & 1) { /* This bank is marked as valid */ - if (win->br < pcmcia_phy_base) { - pcmcia_phy_base = win->br; - } - if ((win->br + PCMCIA_MEM_SIZE) > pcmcia_phy_end) { - pcmcia_phy_end = win->br + PCMCIA_MEM_SIZE; - } - /* Check which slot that has been defined */ - _slot_ = (win->or >> 2) & 1; - - } /* Valid bank */ - win++; - } /* for */ - - printk ("PCMCIA slot %c: phys mem %08x...%08x (size %08x)\n", - 'A' + _slot_, - pcmcia_phy_base, pcmcia_phy_end, - pcmcia_phy_end - pcmcia_phy_base); - - if (!request_mem_region(pcmcia_phy_base, - pcmcia_phy_end - pcmcia_phy_base, - DRV_NAME)) { - printk(KERN_ERR "%s: resources busy\n", DRV_NAME); - return -EBUSY; - } - - pcmcia_base=(unsigned long)ioremap(pcmcia_phy_base, - pcmcia_phy_end-pcmcia_phy_base); - -#ifdef DEBUG - printk ("PCMCIA virt base: %08lx\n", pcmcia_base); -#endif - /* Compute clock cycles for PIO timings */ - for (i=0; i<6; ++i) { - bd_t *binfo = (bd_t *)__res; - - hold_time[i] = - PCMCIA_MK_CLKS (hold_time[i], - binfo->bi_busfreq); - ide_pio_clocks[i].setup_time = - PCMCIA_MK_CLKS (ide_pio_timings[i].setup_time, - binfo->bi_busfreq); - ide_pio_clocks[i].active_time = - PCMCIA_MK_CLKS (ide_pio_timings[i].active_time, - binfo->bi_busfreq); - ide_pio_clocks[i].cycle_time = - PCMCIA_MK_CLKS (ide_pio_timings[i].cycle_time, - binfo->bi_busfreq); -#if 0 - printk ("PIO mode %d timings: %d/%d/%d => %d/%d/%d\n", - i, - ide_pio_clocks[i].setup_time, - ide_pio_clocks[i].active_time, - ide_pio_clocks[i].hold_time, - ide_pio_clocks[i].cycle_time, - ide_pio_timings[i].setup_time, - ide_pio_timings[i].active_time, - ide_pio_timings[i].hold_time, - ide_pio_timings[i].cycle_time); -#endif - } - } - - if (_slot_ == -1) { - printk ("PCMCIA slot has not been defined! Using A as default\n"); - _slot_ = 0; - } - -#ifdef CONFIG_IDE_8xx_PCCARD - -#ifdef DEBUG - printk ("PIPR = 0x%08X slot %c ==> mask = 0x%X\n", - pcmp->pcmc_pipr, - 'A' + _slot_, - M8XX_PCMCIA_CD1(_slot_) | M8XX_PCMCIA_CD2(_slot_) ); -#endif /* DEBUG */ - - if (pcmp->pcmc_pipr & (M8XX_PCMCIA_CD1(_slot_)|M8XX_PCMCIA_CD2(_slot_))) { - printk ("No card in slot %c: PIPR=%08x\n", - 'A' + _slot_, (u32) pcmp->pcmc_pipr); - return -ENODEV; /* No card in slot */ - } - - check_ide_device (pcmcia_base); - -#endif /* CONFIG_IDE_8xx_PCCARD */ - - base = pcmcia_base + ioport_dsc[data_port].base_off; -#ifdef DEBUG - printk ("base: %08x + %08x = %08x\n", - pcmcia_base, ioport_dsc[data_port].base_off, base); -#endif - - for (i = 0; i < IDE_NR_PORTS; ++i) { -#ifdef DEBUG - printk ("port[%d]: %08x + %08x = %08x\n", - i, - base, - ioport_dsc[data_port].reg_off[i], - i, base + ioport_dsc[data_port].reg_off[i]); -#endif - *p++ = base + ioport_dsc[data_port].reg_off[i]; - } - - hw->irq = ioport_dsc[data_port].irq; - hw->ack_intr = (ide_ack_intr_t *)ide_interrupt_ack; - -#ifdef CONFIG_IDE_8xx_PCCARD - { - unsigned int reg; - - if (_slot_) - pgcrx = &((immap_t *) IMAP_ADDR)->im_pcmcia.pcmc_pgcrb; - else - pgcrx = &((immap_t *) IMAP_ADDR)->im_pcmcia.pcmc_pgcra; - - reg = *pgcrx; - reg |= mk_int_int_mask (pcmcia_schlvl) << 24; - reg |= mk_int_int_mask (pcmcia_schlvl) << 16; - *pgcrx = reg; - } -#endif /* CONFIG_IDE_8xx_PCCARD */ - - /* Enable Harddisk Interrupt, - * and make it edge sensitive - */ - /* (11-18) Set edge detect for irq, no wakeup from low power mode */ - ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel |= - (0x80000000 >> ioport_dsc[data_port].irq); - -#ifdef CONFIG_IDE_8xx_PCCARD - /* Make sure we don't get garbage irq */ - ((immap_t *) IMAP_ADDR)->im_pcmcia.pcmc_pscr = 0xFFFF; - - /* Enable falling edge irq */ - pcmp->pcmc_per = 0x100000 >> (16 * _slot_); -#endif /* CONFIG_IDE_8xx_PCCARD */ - - hw->chipset = ide_generic; - - return 0; -} -#endif /* CONFIG_IDE_8xx_PCCARD || CONFIG_IDE_8xx_DIRECT */ - -/* - * m8xx_ide_init_ports() for a direct IDE interface _not_ using - * MPC8xx's internal PCMCIA interface - */ -#if defined(CONFIG_IDE_EXT_DIRECT) -static int __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port) -{ - unsigned long *p = hw->io_ports_array; - int i; - - u32 ide_phy_base; - u32 ide_phy_end; - static unsigned long ide_base = 0; - unsigned long base; - - *p = 0; - - if (!ide_base) { - - /* TODO: - * - add code to read ORx, BRx - */ - ide_phy_base = CFG_ATA_BASE_ADDR; - ide_phy_end = CFG_ATA_BASE_ADDR + 0x200; - - printk ("IDE phys mem : %08x...%08x (size %08x)\n", - ide_phy_base, ide_phy_end, - ide_phy_end - ide_phy_base); - - if (!request_mem_region(ide_phy_base, 0x200, DRV_NAME)) { - printk(KERN_ERR "%s: resources busy\n", DRV_NAME); - return -EBUSY; - } - - ide_base=(unsigned long)ioremap(ide_phy_base, - ide_phy_end-ide_phy_base); - -#ifdef DEBUG - printk ("IDE virt base: %08lx\n", ide_base); -#endif - } - - base = ide_base + ioport_dsc[data_port].base_off; -#ifdef DEBUG - printk ("base: %08x + %08x = %08x\n", - ide_base, ioport_dsc[data_port].base_off, base); -#endif - - for (i = 0; i < IDE_NR_PORTS; ++i) { -#ifdef DEBUG - printk ("port[%d]: %08x + %08x = %08x\n", - i, - base, - ioport_dsc[data_port].reg_off[i], - i, base + ioport_dsc[data_port].reg_off[i]); -#endif - *p++ = base + ioport_dsc[data_port].reg_off[i]; - } - - /* direct connected IDE drive, i.e. external IRQ */ - hw->irq = ioport_dsc[data_port].irq; - hw->ack_intr = (ide_ack_intr_t *)ide_interrupt_ack; - - /* Enable Harddisk Interrupt, - * and make it edge sensitive - */ - /* (11-18) Set edge detect for irq, no wakeup from low power mode */ - ((immap_t *) IMAP_ADDR)->im_siu_conf.sc_siel |= - (0x80000000 >> ioport_dsc[data_port].irq); - - hw->chipset = ide_generic; - - return 0; -} -#endif /* CONFIG_IDE_8xx_DIRECT */ - - -/* -------------------------------------------------------------------- */ - - -/* PCMCIA Timing */ -#ifndef PCMCIA_SHT -#define PCMCIA_SHT(t) ((t & 0x0F)<<16) /* Strobe Hold Time */ -#define PCMCIA_SST(t) ((t & 0x0F)<<12) /* Strobe Setup Time */ -#define PCMCIA_SL(t) ((t==32) ? 0 : ((t & 0x1F)<<7)) /* Strobe Length */ -#endif - -/* Calculate PIO timings */ -static void m8xx_ide_set_pio_mode(ide_drive_t *drive, const u8 pio) -{ -#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_DIRECT) - volatile pcmconf8xx_t *pcmp; - ulong timing, mask, reg; - - pcmp = (pcmconf8xx_t *)(&(((immap_t *)IMAP_ADDR)->im_pcmcia)); - - mask = ~(PCMCIA_SHT(0xFF) | PCMCIA_SST(0xFF) | PCMCIA_SL(0xFF)); - - timing = PCMCIA_SHT(hold_time[pio] ) - | PCMCIA_SST(ide_pio_clocks[pio].setup_time ) - | PCMCIA_SL (ide_pio_clocks[pio].active_time) - ; - -#if 1 - printk ("Setting timing bits 0x%08lx in PCMCIA controller\n", timing); -#endif - if ((reg = pcmp->pcmc_por0 & mask) != 0) - pcmp->pcmc_por0 = reg | timing; - - if ((reg = pcmp->pcmc_por1 & mask) != 0) - pcmp->pcmc_por1 = reg | timing; - - if ((reg = pcmp->pcmc_por2 & mask) != 0) - pcmp->pcmc_por2 = reg | timing; - - if ((reg = pcmp->pcmc_por3 & mask) != 0) - pcmp->pcmc_por3 = reg | timing; - - if ((reg = pcmp->pcmc_por4 & mask) != 0) - pcmp->pcmc_por4 = reg | timing; - - if ((reg = pcmp->pcmc_por5 & mask) != 0) - pcmp->pcmc_por5 = reg | timing; - - if ((reg = pcmp->pcmc_por6 & mask) != 0) - pcmp->pcmc_por6 = reg | timing; - - if ((reg = pcmp->pcmc_por7 & mask) != 0) - pcmp->pcmc_por7 = reg | timing; - -#elif defined(CONFIG_IDE_EXT_DIRECT) - - printk("%s[%d] %s: not implemented yet!\n", - __FILE__, __LINE__, __func__); -#endif /* defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_PCMCIA */ -} - -static const struct ide_port_ops m8xx_port_ops = { - .set_pio_mode = m8xx_ide_set_pio_mode, -}; - -static void -ide_interrupt_ack (void *dev) -{ -#ifdef CONFIG_IDE_8xx_PCCARD - u_int pscr, pipr; - -#if (PCMCIA_SOCKETS_NO == 2) - u_int _slot_; -#endif - - /* get interrupt sources */ - - pscr = ((volatile immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr; - pipr = ((volatile immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr; - - /* - * report only if both card detect signals are the same - * not too nice done, - * we depend on that CD2 is the bit to the left of CD1... - */ - - if(_slot_==-1){ - printk("PCMCIA slot has not been defined! Using A as default\n"); - _slot_=0; - } - - if(((pipr & M8XX_PCMCIA_CD2(_slot_)) >> 1) ^ - (pipr & M8XX_PCMCIA_CD1(_slot_)) ) { - printk ("card detect interrupt\n"); - } - /* clear the interrupt sources */ - ((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr = pscr; - -#else /* ! CONFIG_IDE_8xx_PCCARD */ - /* - * Only CONFIG_IDE_8xx_PCCARD is using the interrupt of the - * MPC8xx's PCMCIA controller, so there is nothing to be done here - * for CONFIG_IDE_8xx_DIRECT and CONFIG_IDE_EXT_DIRECT. - * The interrupt is handled somewhere else. -- Steven - */ -#endif /* CONFIG_IDE_8xx_PCCARD */ -} - - - -/* - * CIS Tupel codes - */ -#define CISTPL_NULL 0x00 -#define CISTPL_DEVICE 0x01 -#define CISTPL_LONGLINK_CB 0x02 -#define CISTPL_INDIRECT 0x03 -#define CISTPL_CONFIG_CB 0x04 -#define CISTPL_CFTABLE_ENTRY_CB 0x05 -#define CISTPL_LONGLINK_MFC 0x06 -#define CISTPL_BAR 0x07 -#define CISTPL_PWR_MGMNT 0x08 -#define CISTPL_EXTDEVICE 0x09 -#define CISTPL_CHECKSUM 0x10 -#define CISTPL_LONGLINK_A 0x11 -#define CISTPL_LONGLINK_C 0x12 -#define CISTPL_LINKTARGET 0x13 -#define CISTPL_NO_LINK 0x14 -#define CISTPL_VERS_1 0x15 -#define CISTPL_ALTSTR 0x16 -#define CISTPL_DEVICE_A 0x17 -#define CISTPL_JEDEC_C 0x18 -#define CISTPL_JEDEC_A 0x19 -#define CISTPL_CONFIG 0x1a -#define CISTPL_CFTABLE_ENTRY 0x1b -#define CISTPL_DEVICE_OC 0x1c -#define CISTPL_DEVICE_OA 0x1d -#define CISTPL_DEVICE_GEO 0x1e -#define CISTPL_DEVICE_GEO_A 0x1f -#define CISTPL_MANFID 0x20 -#define CISTPL_FUNCID 0x21 -#define CISTPL_FUNCE 0x22 -#define CISTPL_SWIL 0x23 -#define CISTPL_END 0xff - -/* - * CIS Function ID codes - */ -#define CISTPL_FUNCID_MULTI 0x00 -#define CISTPL_FUNCID_MEMORY 0x01 -#define CISTPL_FUNCID_SERIAL 0x02 -#define CISTPL_FUNCID_PARALLEL 0x03 -#define CISTPL_FUNCID_FIXED 0x04 -#define CISTPL_FUNCID_VIDEO 0x05 -#define CISTPL_FUNCID_NETWORK 0x06 -#define CISTPL_FUNCID_AIMS 0x07 -#define CISTPL_FUNCID_SCSI 0x08 - -/* - * Fixed Disk FUNCE codes - */ -#define CISTPL_IDE_INTERFACE 0x01 - -#define CISTPL_FUNCE_IDE_IFACE 0x01 -#define CISTPL_FUNCE_IDE_MASTER 0x02 -#define CISTPL_FUNCE_IDE_SLAVE 0x03 - -/* First feature byte */ -#define CISTPL_IDE_SILICON 0x04 -#define CISTPL_IDE_UNIQUE 0x08 -#define CISTPL_IDE_DUAL 0x10 - -/* Second feature byte */ -#define CISTPL_IDE_HAS_SLEEP 0x01 -#define CISTPL_IDE_HAS_STANDBY 0x02 -#define CISTPL_IDE_HAS_IDLE 0x04 -#define CISTPL_IDE_LOW_POWER 0x08 -#define CISTPL_IDE_REG_INHIBIT 0x10 -#define CISTPL_IDE_HAS_INDEX 0x20 -#define CISTPL_IDE_IOIS16 0x40 - - -/* -------------------------------------------------------------------- */ - - -#define MAX_TUPEL_SZ 512 -#define MAX_FEATURES 4 - -static int check_ide_device (unsigned long base) -{ - volatile u8 *ident = NULL; - volatile u8 *feature_p[MAX_FEATURES]; - volatile u8 *p, *start; - int n_features = 0; - u8 func_id = ~0; - u8 code, len; - unsigned short config_base = 0; - int found = 0; - int i; - -#ifdef DEBUG - printk ("PCMCIA MEM: %08lX\n", base); -#endif - start = p = (volatile u8 *) base; - - while ((p - start) < MAX_TUPEL_SZ) { - - code = *p; p += 2; - - if (code == 0xFF) { /* End of chain */ - break; - } - - len = *p; p += 2; -#ifdef DEBUG_PCMCIA - { volatile u8 *q = p; - printk ("\nTuple code %02x length %d\n\tData:", - code, len); - - for (i = 0; i < len; ++i) { - printk (" %02x", *q); - q+= 2; - } - } -#endif /* DEBUG_PCMCIA */ - switch (code) { - case CISTPL_VERS_1: - ident = p + 4; - break; - case CISTPL_FUNCID: - func_id = *p; - break; - case CISTPL_FUNCE: - if (n_features < MAX_FEATURES) - feature_p[n_features++] = p; - break; - case CISTPL_CONFIG: - config_base = (*(p+6) << 8) + (*(p+4)); - default: - break; - } - p += 2 * len; - } - - found = identify (ident); - - if (func_id != ((u8)~0)) { - print_funcid (func_id); - - if (func_id == CISTPL_FUNCID_FIXED) - found = 1; - else - return (1); /* no disk drive */ - } - - for (i=0; i<n_features; ++i) { - print_fixed (feature_p[i]); - } - - if (!found) { - printk ("unknown card type\n"); - return (1); - } - - /* set level mode irq and I/O mapped device in config reg*/ - *((u8 *)(base + config_base)) = 0x41; - - return (0); -} - -/* ------------------------------------------------------------------------- */ - -static void print_funcid (int func) -{ - switch (func) { - case CISTPL_FUNCID_MULTI: - printk (" Multi-Function"); - break; - case CISTPL_FUNCID_MEMORY: - printk (" Memory"); - break; - case CISTPL_FUNCID_SERIAL: - printk (" Serial Port"); - break; - case CISTPL_FUNCID_PARALLEL: - printk (" Parallel Port"); - break; - case CISTPL_FUNCID_FIXED: - printk (" Fixed Disk"); - break; - case CISTPL_FUNCID_VIDEO: - printk (" Video Adapter"); - break; - case CISTPL_FUNCID_NETWORK: - printk (" Network Adapter"); - break; - case CISTPL_FUNCID_AIMS: - printk (" AIMS Card"); - break; - case CISTPL_FUNCID_SCSI: - printk (" SCSI Adapter"); - break; - default: - printk (" Unknown"); - break; - } - printk (" Card\n"); -} - -/* ------------------------------------------------------------------------- */ - -static void print_fixed (volatile u8 *p) -{ - if (p == NULL) - return; - - switch (*p) { - case CISTPL_FUNCE_IDE_IFACE: - { u8 iface = *(p+2); - - printk ((iface == CISTPL_IDE_INTERFACE) ? " IDE" : " unknown"); - printk (" interface "); - break; - } - case CISTPL_FUNCE_IDE_MASTER: - case CISTPL_FUNCE_IDE_SLAVE: - { u8 f1 = *(p+2); - u8 f2 = *(p+4); - - printk ((f1 & CISTPL_IDE_SILICON) ? " [silicon]" : " [rotating]"); - - if (f1 & CISTPL_IDE_UNIQUE) - printk (" [unique]"); - - printk ((f1 & CISTPL_IDE_DUAL) ? " [dual]" : " [single]"); - - if (f2 & CISTPL_IDE_HAS_SLEEP) - printk (" [sleep]"); - - if (f2 & CISTPL_IDE_HAS_STANDBY) - printk (" [standby]"); - - if (f2 & CISTPL_IDE_HAS_IDLE) - printk (" [idle]"); - - if (f2 & CISTPL_IDE_LOW_POWER) - printk (" [low power]"); - - if (f2 & CISTPL_IDE_REG_INHIBIT) - printk (" [reg inhibit]"); - - if (f2 & CISTPL_IDE_HAS_INDEX) - printk (" [index]"); - - if (f2 & CISTPL_IDE_IOIS16) - printk (" [IOis16]"); - - break; - } - } - printk ("\n"); -} - -/* ------------------------------------------------------------------------- */ - - -#define MAX_IDENT_CHARS 64 -#define MAX_IDENT_FIELDS 4 - -static u8 *known_cards[] = { - "ARGOSY PnPIDE D5", - NULL -}; - -static int identify (volatile u8 *p) -{ - u8 id_str[MAX_IDENT_CHARS]; - u8 data; - u8 *t; - u8 **card; - int i, done; - - if (p == NULL) - return (0); /* Don't know */ - - t = id_str; - done =0; - - for (i=0; i<=4 && !done; ++i, p+=2) { - while ((data = *p) != '\0') { - if (data == 0xFF) { - done = 1; - break; - } - *t++ = data; - if (t == &id_str[MAX_IDENT_CHARS-1]) { - done = 1; - break; - } - p += 2; - } - if (!done) - *t++ = ' '; - } - *t = '\0'; - while (--t > id_str) { - if (*t == ' ') - *t = '\0'; - else - break; - } - printk ("Card ID: %s\n", id_str); - - for (card=known_cards; *card; ++card) { - if (strcmp(*card, id_str) == 0) { /* found! */ - return (1); - } - } - - return (0); /* don't know */ -} - -static int __init mpc8xx_ide_probe(void) -{ - hw_regs_t hw; - u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - -#ifdef IDE0_BASE_OFFSET - memset(&hw, 0, sizeof(hw)); - if (!m8xx_ide_init_ports(&hw, 0)) { - ide_hwif_t *hwif = ide_find_port(); - - if (hwif) { - ide_init_port_hw(hwif, &hw); - hwif->pio_mask = ATA_PIO4; - hwif->port_ops = &m8xx_port_ops; - - idx[0] = hwif->index; - } - } -#ifdef IDE1_BASE_OFFSET - memset(&hw, 0, sizeof(hw)); - if (!m8xx_ide_init_ports(&hw, 1)) { - ide_hwif_t *mate = ide_find_port(); - - if (mate) { - ide_init_port_hw(mate, &hw); - mate->pio_mask = ATA_PIO4; - mate->port_ops = &m8xx_port_ops; - - idx[1] = mate->index; - } - } -#endif -#endif - - ide_device_add(idx, NULL); - - return 0; -} - -module_init(mpc8xx_ide_probe); - -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index ba2d58727964..93fb9067c043 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -5,7 +5,7 @@ * for doing DMA. * * Copyright (C) 1998-2003 Paul Mackerras & Ben. Herrenschmidt - * Copyright (C) 2007 Bartlomiej Zolnierkiewicz + * Copyright (C) 2007-2008 Bartlomiej Zolnierkiewicz * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -48,8 +48,6 @@ #include <asm/mediabay.h> #endif -#include "../ide-timing.h" - #undef IDE_PMAC_DEBUG #define DMA_WAIT_TIMEOUT 50 @@ -480,13 +478,13 @@ pmac_ide_do_update_timings(ide_drive_t *drive) pmac_ide_selectproc(drive); } -static void -pmac_outbsync(ide_drive_t *drive, u8 value, unsigned long port) +static void pmac_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port) { u32 tmp; writeb(value, (void __iomem *) port); - tmp = readl(PMAC_IDE_REG(IDE_TIMING_CONFIG)); + tmp = readl((void __iomem *)(hwif->io_ports.data_addr + + IDE_TIMING_CONFIG)); } /* @@ -495,6 +493,7 @@ pmac_outbsync(ide_drive_t *drive, u8 value, unsigned long port) static void pmac_ide_set_pio_mode(ide_drive_t *drive, const u8 pio) { + struct ide_timing *tim = ide_timing_find_mode(XFER_PIO_0 + pio); u32 *timings, t; unsigned accessTicks, recTicks; unsigned accessTime, recTime; @@ -526,10 +525,9 @@ pmac_ide_set_pio_mode(ide_drive_t *drive, const u8 pio) } case controller_kl_ata4: /* 66Mhz cell */ - recTime = cycle_time - ide_pio_timings[pio].active_time - - ide_pio_timings[pio].setup_time; + recTime = cycle_time - tim->active - tim->setup; recTime = max(recTime, 150U); - accessTime = ide_pio_timings[pio].active_time; + accessTime = tim->active; accessTime = max(accessTime, 150U); accessTicks = SYSCLK_TICKS_66(accessTime); accessTicks = min(accessTicks, 0x1fU); @@ -542,10 +540,9 @@ pmac_ide_set_pio_mode(ide_drive_t *drive, const u8 pio) default: { /* 33Mhz cell */ int ebit = 0; - recTime = cycle_time - ide_pio_timings[pio].active_time - - ide_pio_timings[pio].setup_time; + recTime = cycle_time - tim->active - tim->setup; recTime = max(recTime, 150U); - accessTime = ide_pio_timings[pio].active_time; + accessTime = tim->active; accessTime = max(accessTime, 150U); accessTicks = SYSCLK_TICKS(accessTime); accessTicks = min(accessTicks, 0x1fU); @@ -1151,8 +1148,6 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match) base = ioremap(macio_resource_start(mdev, 0), 0x400); regbase = (unsigned long) base; - hwif->dev = &mdev->bus->pdev->dev; - pmif->mdev = mdev; pmif->node = mdev->ofdev.node; pmif->regbase = regbase; @@ -1174,7 +1169,8 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match) memset(&hw, 0, sizeof(hw)); pmac_ide_init_ports(&hw, pmif->regbase); hw.irq = irq; - hw.dev = &mdev->ofdev.dev; + hw.dev = &mdev->bus->pdev->dev; + hw.parent = &mdev->ofdev.dev; rc = pmac_ide_setup_device(pmif, hwif, &hw); if (rc != 0) { @@ -1274,7 +1270,6 @@ pmac_ide_pci_attach(struct pci_dev *pdev, const struct pci_device_id *id) goto out_free_pmif; } - hwif->dev = &pdev->dev; pmif->mdev = NULL; pmif->node = np; diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index 5171601fb255..9edb944bb6b9 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -6,19 +6,14 @@ * May be copied or modified under the terms of the GNU General Public License */ -#include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/pci.h> #include <linux/init.h> -#include <linux/timer.h> -#include <linux/mm.h> #include <linux/interrupt.h> #include <linux/ide.h> -#include <linux/dma-mapping.h> #include <asm/io.h> -#include <asm/irq.h> /** * ide_setup_pci_baseregs - place a PCI IDE controller native @@ -87,7 +82,7 @@ unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) unsigned long dma_base = 0; u8 dma_stat = 0; - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) return hwif->dma_base; if (hwif->mate && hwif->mate->dma_base) { @@ -319,25 +314,22 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, ctl = pci_resource_start(dev, 2*port+1); base = pci_resource_start(dev, 2*port); - if ((ctl && !base) || (base && !ctl)) { - printk(KERN_ERR "%s: inconsistent baseregs (BIOS) " - "for port %d, skipping\n", d->name, port); - return NULL; - } - } - if (!ctl) { + } else { /* Use default values */ ctl = port ? 0x374 : 0x3f4; base = port ? 0x170 : 0x1f0; } - hwif = ide_find_port_slot(d); - if (hwif == NULL) { - printk(KERN_ERR "%s: too many IDE interfaces, no room in " - "table\n", d->name); + if (!base || !ctl) { + printk(KERN_ERR "%s: bad PCI BARs for port %d, skipping\n", + d->name, port); return NULL; } + hwif = ide_find_port_slot(d); + if (hwif == NULL) + return NULL; + memset(&hw, 0, sizeof(hw)); hw.irq = irq; hw.dev = &dev->dev; @@ -346,8 +338,6 @@ static ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, ide_init_port_hw(hwif, &hw); - hwif->dev = &dev->dev; - return hwif; } @@ -374,7 +364,7 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) if (base == 0 || ide_pci_set_master(dev, d->name) < 0) return -1; - if (hwif->mmio) + if (hwif->host_flags & IDE_HFLAG_MMIO) printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); else printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c index 9d19aec5820a..b6eb2cf25914 100644 --- a/drivers/ieee1394/dv1394.c +++ b/drivers/ieee1394/dv1394.c @@ -2296,9 +2296,10 @@ static void dv1394_add_host(struct hpsb_host *host) ohci = (struct ti_ohci *)host->hostdata; - device_create(hpsb_protocol_class, NULL, MKDEV( - IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)), - "dv1394-%d", id); + device_create_drvdata(hpsb_protocol_class, NULL, + MKDEV(IEEE1394_MAJOR, + IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)), NULL, + "dv1394-%d", id); dv1394_init(ohci, DV1394_NTSC, MODE_RECEIVE); dv1394_init(ohci, DV1394_NTSC, MODE_TRANSMIT); diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 05710c7c1220..994a21e5a0aa 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -754,7 +754,8 @@ static void nodemgr_remove_uds(struct node_entry *ne) */ mutex_lock(&nodemgr_serialize_remove_uds); for (;;) { - dev = class_find_device(&nodemgr_ud_class, ne, __match_ne); + dev = class_find_device(&nodemgr_ud_class, NULL, ne, + __match_ne); if (!dev) break; ud = container_of(dev, struct unit_directory, unit_dev); @@ -901,7 +902,8 @@ static struct node_entry *find_entry_by_guid(u64 guid) struct device *dev; struct node_entry *ne; - dev = class_find_device(&nodemgr_ne_class, &guid, __match_ne_guid); + dev = class_find_device(&nodemgr_ne_class, NULL, &guid, + __match_ne_guid); if (!dev) return NULL; ne = container_of(dev, struct node_entry, node_dev); @@ -940,7 +942,8 @@ static struct node_entry *find_entry_by_nodeid(struct hpsb_host *host, param.host = host; param.nodeid = nodeid; - dev = class_find_device(&nodemgr_ne_class, ¶m, __match_ne_nodeid); + dev = class_find_device(&nodemgr_ne_class, NULL, ¶m, + __match_ne_nodeid); if (!dev) return NULL; ne = container_of(dev, struct node_entry, node_dev); @@ -1453,7 +1456,8 @@ static void nodemgr_suspend_ne(struct node_entry *ne) ne->in_limbo = 1; WARN_ON(device_create_file(&ne->device, &dev_attr_ne_in_limbo)); - class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_driver_suspend); + class_for_each_device(&nodemgr_ud_class, NULL, ne, + __nodemgr_driver_suspend); } @@ -1462,7 +1466,8 @@ static void nodemgr_resume_ne(struct node_entry *ne) ne->in_limbo = 0; device_remove_file(&ne->device, &dev_attr_ne_in_limbo); - class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_driver_resume); + class_for_each_device(&nodemgr_ud_class, NULL, ne, + __nodemgr_driver_resume); HPSB_DEBUG("Node resumed: ID:BUS[" NODE_BUS_FMT "] GUID[%016Lx]", NODE_BUS_ARGS(ne->host, ne->nodeid), (unsigned long long)ne->guid); } @@ -1498,7 +1503,8 @@ static int __nodemgr_update_pdrv(struct device *dev, void *data) static void nodemgr_update_pdrv(struct node_entry *ne) { - class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_update_pdrv); + class_for_each_device(&nodemgr_ud_class, NULL, ne, + __nodemgr_update_pdrv); } @@ -1591,7 +1597,8 @@ static void nodemgr_node_probe(struct host_info *hi, int generation) * while probes are time-consuming. (Well, those probes need some * improvement...) */ - class_for_each_device(&nodemgr_ne_class, ¶m, __nodemgr_node_probe); + class_for_each_device(&nodemgr_ne_class, NULL, ¶m, + __nodemgr_node_probe); /* If we had a bus reset while we were scanning the bus, it is * possible that we did not probe all nodes. In that case, we @@ -1826,7 +1833,7 @@ int nodemgr_for_each_host(void *data, int (*cb)(struct hpsb_host *, void *)) hip.cb = cb; hip.data = data; - error = class_for_each_device(&hpsb_host_class, &hip, + error = class_for_each_device(&hpsb_host_class, NULL, &hip, __nodemgr_for_each_host); return error; diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c index ec2a0adbedb2..2212a91d96b4 100644 --- a/drivers/ieee1394/raw1394.c +++ b/drivers/ieee1394/raw1394.c @@ -3000,10 +3000,10 @@ static int __init init_raw1394(void) hpsb_register_highlevel(&raw1394_highlevel); if (IS_ERR - (device_create( + (device_create_drvdata( hpsb_protocol_class, NULL, MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16), - RAW1394_DEVICE_NAME))) { + NULL, RAW1394_DEVICE_NAME))) { ret = -EFAULT; goto out_unreg; } diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c index e24772d336e1..903e01f002cc 100644 --- a/drivers/ieee1394/video1394.c +++ b/drivers/ieee1394/video1394.c @@ -1341,9 +1341,9 @@ static void video1394_add_host (struct hpsb_host *host) hpsb_set_hostinfo_key(&video1394_highlevel, host, ohci->host->id); minor = IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id; - device_create(hpsb_protocol_class, NULL, - MKDEV(IEEE1394_MAJOR, minor), - "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id); + device_create_drvdata(hpsb_protocol_class, NULL, + MKDEV(IEEE1394_MAJOR, minor), NULL, + "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id); } diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 55738eead3bf..922d35f4fc08 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -44,6 +44,7 @@ #include <linux/spinlock.h> #include <linux/sysfs.h> #include <linux/workqueue.h> +#include <linux/kdev_t.h> #include <rdma/ib_cache.h> #include <rdma/ib_cm.h> @@ -162,8 +163,8 @@ struct cm_port { struct cm_device { struct list_head list; - struct ib_device *device; - struct kobject dev_obj; + struct ib_device *ib_device; + struct device *device; u8 ack_delay; struct cm_port *port[0]; }; @@ -339,7 +340,7 @@ static void cm_init_av_for_response(struct cm_port *port, struct ib_wc *wc, { av->port = port; av->pkey_index = wc->pkey_index; - ib_init_ah_from_wc(port->cm_dev->device, port->port_num, wc, + ib_init_ah_from_wc(port->cm_dev->ib_device, port->port_num, wc, grh, &av->ah_attr); } @@ -353,7 +354,7 @@ static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av) read_lock_irqsave(&cm.device_lock, flags); list_for_each_entry(cm_dev, &cm.device_list, list) { - if (!ib_find_cached_gid(cm_dev->device, &path->sgid, + if (!ib_find_cached_gid(cm_dev->ib_device, &path->sgid, &p, NULL)) { port = cm_dev->port[p-1]; break; @@ -364,13 +365,13 @@ static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av) if (!port) return -EINVAL; - ret = ib_find_cached_pkey(cm_dev->device, port->port_num, + ret = ib_find_cached_pkey(cm_dev->ib_device, port->port_num, be16_to_cpu(path->pkey), &av->pkey_index); if (ret) return ret; av->port = port; - ib_init_ah_from_path(cm_dev->device, port->port_num, path, + ib_init_ah_from_path(cm_dev->ib_device, port->port_num, path, &av->ah_attr); av->timeout = path->packet_life_time + 1; return 0; @@ -1515,7 +1516,7 @@ static int cm_req_handler(struct cm_work *work) req_msg = (struct cm_req_msg *)work->mad_recv_wc->recv_buf.mad; - cm_id = ib_create_cm_id(work->port->cm_dev->device, NULL, NULL); + cm_id = ib_create_cm_id(work->port->cm_dev->ib_device, NULL, NULL); if (IS_ERR(cm_id)) return PTR_ERR(cm_id); @@ -1550,7 +1551,7 @@ static int cm_req_handler(struct cm_work *work) cm_format_paths_from_req(req_msg, &work->path[0], &work->path[1]); ret = cm_init_av_by_path(&work->path[0], &cm_id_priv->av); if (ret) { - ib_get_cached_gid(work->port->cm_dev->device, + ib_get_cached_gid(work->port->cm_dev->ib_device, work->port->port_num, 0, &work->path[0].sgid); ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_GID, &work->path[0].sgid, sizeof work->path[0].sgid, @@ -2950,7 +2951,7 @@ static int cm_sidr_req_handler(struct cm_work *work) struct cm_sidr_req_msg *sidr_req_msg; struct ib_wc *wc; - cm_id = ib_create_cm_id(work->port->cm_dev->device, NULL, NULL); + cm_id = ib_create_cm_id(work->port->cm_dev->ib_device, NULL, NULL); if (IS_ERR(cm_id)) return PTR_ERR(cm_id); cm_id_priv = container_of(cm_id, struct cm_id_private, id); @@ -3578,7 +3579,7 @@ static void cm_get_ack_delay(struct cm_device *cm_dev) { struct ib_device_attr attr; - if (ib_query_device(cm_dev->device, &attr)) + if (ib_query_device(cm_dev->ib_device, &attr)) cm_dev->ack_delay = 0; /* acks will rely on packet life time */ else cm_dev->ack_delay = attr.local_ca_ack_delay; @@ -3618,18 +3619,6 @@ static struct kobj_type cm_port_obj_type = { .release = cm_release_port_obj }; -static void cm_release_dev_obj(struct kobject *obj) -{ - struct cm_device *cm_dev; - - cm_dev = container_of(obj, struct cm_device, dev_obj); - kfree(cm_dev); -} - -static struct kobj_type cm_dev_obj_type = { - .release = cm_release_dev_obj -}; - struct class cm_class = { .name = "infiniband_cm", }; @@ -3640,7 +3629,7 @@ static int cm_create_port_fs(struct cm_port *port) int i, ret; ret = kobject_init_and_add(&port->port_obj, &cm_port_obj_type, - &port->cm_dev->dev_obj, + &port->cm_dev->device->kobj, "%d", port->port_num); if (ret) { kfree(port); @@ -3676,7 +3665,7 @@ static void cm_remove_port_fs(struct cm_port *port) kobject_put(&port->port_obj); } -static void cm_add_one(struct ib_device *device) +static void cm_add_one(struct ib_device *ib_device) { struct cm_device *cm_dev; struct cm_port *port; @@ -3691,26 +3680,27 @@ static void cm_add_one(struct ib_device *device) int ret; u8 i; - if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) + if (rdma_node_get_transport(ib_device->node_type) != RDMA_TRANSPORT_IB) return; cm_dev = kzalloc(sizeof(*cm_dev) + sizeof(*port) * - device->phys_port_cnt, GFP_KERNEL); + ib_device->phys_port_cnt, GFP_KERNEL); if (!cm_dev) return; - cm_dev->device = device; + cm_dev->ib_device = ib_device; cm_get_ack_delay(cm_dev); - ret = kobject_init_and_add(&cm_dev->dev_obj, &cm_dev_obj_type, - &cm_class.subsys.kobj, "%s", device->name); - if (ret) { + cm_dev->device = device_create_drvdata(&cm_class, &ib_device->dev, + MKDEV(0, 0), NULL, + "%s", ib_device->name); + if (!cm_dev->device) { kfree(cm_dev); return; } set_bit(IB_MGMT_METHOD_SEND, reg_req.method_mask); - for (i = 1; i <= device->phys_port_cnt; i++) { + for (i = 1; i <= ib_device->phys_port_cnt; i++) { port = kzalloc(sizeof *port, GFP_KERNEL); if (!port) goto error1; @@ -3723,7 +3713,7 @@ static void cm_add_one(struct ib_device *device) if (ret) goto error1; - port->mad_agent = ib_register_mad_agent(device, i, + port->mad_agent = ib_register_mad_agent(ib_device, i, IB_QPT_GSI, ®_req, 0, @@ -3733,11 +3723,11 @@ static void cm_add_one(struct ib_device *device) if (IS_ERR(port->mad_agent)) goto error2; - ret = ib_modify_port(device, i, 0, &port_modify); + ret = ib_modify_port(ib_device, i, 0, &port_modify); if (ret) goto error3; } - ib_set_client_data(device, &cm_client, cm_dev); + ib_set_client_data(ib_device, &cm_client, cm_dev); write_lock_irqsave(&cm.device_lock, flags); list_add_tail(&cm_dev->list, &cm.device_list); @@ -3753,14 +3743,14 @@ error1: port_modify.clr_port_cap_mask = IB_PORT_CM_SUP; while (--i) { port = cm_dev->port[i-1]; - ib_modify_port(device, port->port_num, 0, &port_modify); + ib_modify_port(ib_device, port->port_num, 0, &port_modify); ib_unregister_mad_agent(port->mad_agent); cm_remove_port_fs(port); } - kobject_put(&cm_dev->dev_obj); + device_unregister(cm_dev->device); } -static void cm_remove_one(struct ib_device *device) +static void cm_remove_one(struct ib_device *ib_device) { struct cm_device *cm_dev; struct cm_port *port; @@ -3770,7 +3760,7 @@ static void cm_remove_one(struct ib_device *device) unsigned long flags; int i; - cm_dev = ib_get_client_data(device, &cm_client); + cm_dev = ib_get_client_data(ib_device, &cm_client); if (!cm_dev) return; @@ -3778,14 +3768,14 @@ static void cm_remove_one(struct ib_device *device) list_del(&cm_dev->list); write_unlock_irqrestore(&cm.device_lock, flags); - for (i = 1; i <= device->phys_port_cnt; i++) { + for (i = 1; i <= ib_device->phys_port_cnt; i++) { port = cm_dev->port[i-1]; - ib_modify_port(device, port->port_num, 0, &port_modify); + ib_modify_port(ib_device, port->port_num, 0, &port_modify); ib_unregister_mad_agent(port->mad_agent); flush_workqueue(cm.wq); cm_remove_port_fs(port); } - kobject_put(&cm_dev->dev_obj); + device_unregister(cm_dev->device); } static int __init ib_cm_init(void) diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c index 0792d930c481..7a64aa9b51b6 100644 --- a/drivers/infiniband/hw/ehca/ehca_irq.c +++ b/drivers/infiniband/hw/ehca/ehca_irq.c @@ -646,8 +646,8 @@ static inline int find_next_online_cpu(struct ehca_comp_pool *pool) ehca_dmp(&cpu_online_map, sizeof(cpumask_t), ""); spin_lock_irqsave(&pool->last_cpu_lock, flags); - cpu = next_cpu(pool->last_cpu, cpu_online_map); - if (cpu == NR_CPUS) + cpu = next_cpu_nr(pool->last_cpu, cpu_online_map); + if (cpu >= nr_cpu_ids) cpu = first_cpu(cpu_online_map); pool->last_cpu = cpu; spin_unlock_irqrestore(&pool->last_cpu_lock, flags); diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index b472b15637f0..edaf667617df 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -2453,7 +2453,7 @@ static int init_cdev(int minor, char *name, const struct file_operations *fops, goto err_cdev; } - device = device_create(ipath_class, NULL, dev, name); + device = device_create_drvdata(ipath_class, NULL, dev, NULL, name); if (IS_ERR(device)) { ret = PTR_ERR(device); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 7779165b2c2c..38c44dec51ca 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -35,6 +35,7 @@ #include <rdma/ib_user_verbs.h> #include <linux/io.h> #include <linux/utsname.h> +#include <linux/rculist.h> #include "ipath_kernel.h" #include "ipath_verbs.h" diff --git a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c index 9e5abf9c309d..d73e32232879 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c @@ -31,8 +31,7 @@ * SOFTWARE. */ -#include <linux/list.h> -#include <linux/rcupdate.h> +#include <linux/rculist.h> #include "ipath_verbs.h" diff --git a/drivers/input/xen-kbdfront.c b/drivers/input/xen-kbdfront.c index 0f47f4697cdf..9ce3b3baf3a2 100644 --- a/drivers/input/xen-kbdfront.c +++ b/drivers/input/xen-kbdfront.c @@ -66,6 +66,9 @@ static irqreturn_t input_handler(int rq, void *dev_id) case XENKBD_TYPE_MOTION: input_report_rel(dev, REL_X, event->motion.rel_x); input_report_rel(dev, REL_Y, event->motion.rel_y); + if (event->motion.rel_z) + input_report_rel(dev, REL_WHEEL, + -event->motion.rel_z); break; case XENKBD_TYPE_KEY: dev = NULL; @@ -84,6 +87,9 @@ static irqreturn_t input_handler(int rq, void *dev_id) case XENKBD_TYPE_POS: input_report_abs(dev, ABS_X, event->pos.abs_x); input_report_abs(dev, ABS_Y, event->pos.abs_y); + if (event->pos.rel_z) + input_report_rel(dev, REL_WHEEL, + -event->pos.rel_z); break; } if (dev) @@ -152,7 +158,7 @@ static int __devinit xenkbd_probe(struct xenbus_device *dev, ptr->evbit[0] = BIT(EV_KEY) | BIT(EV_REL) | BIT(EV_ABS); for (i = BTN_LEFT; i <= BTN_TASK; i++) set_bit(i, ptr->keybit); - ptr->relbit[0] = BIT(REL_X) | BIT(REL_Y); + ptr->relbit[0] = BIT(REL_X) | BIT(REL_Y) | BIT(REL_WHEEL); input_set_abs_params(ptr, ABS_X, 0, XENFB_WIDTH, 0, 0); input_set_abs_params(ptr, ABS_Y, 0, XENFB_HEIGHT, 0, 0); @@ -294,6 +300,16 @@ InitWait: */ if (dev->state != XenbusStateConnected) goto InitWait; /* no InitWait seen yet, fudge it */ + + /* Set input abs params to match backend screen res */ + if (xenbus_scanf(XBT_NIL, info->xbdev->otherend, + "width", "%d", &val) > 0) + input_set_abs_params(info->ptr, ABS_X, 0, val, 0, 0); + + if (xenbus_scanf(XBT_NIL, info->xbdev->otherend, + "height", "%d", &val) > 0) + input_set_abs_params(info->ptr, ABS_Y, 0, val, 0, 0); + break; case XenbusStateClosing: @@ -337,4 +353,6 @@ static void __exit xenkbd_cleanup(void) module_init(xenkbd_init); module_exit(xenkbd_cleanup); +MODULE_DESCRIPTION("Xen virtual keyboard/pointer device frontend"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("xen:vkbd"); diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 6ca0bb949ad3..bac01628e6fd 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -1547,7 +1547,8 @@ static int __init capi_init(void) return PTR_ERR(capi_class); } - device_create(capi_class, NULL, MKDEV(capi_major, 0), "capi"); + device_create_drvdata(capi_class, NULL, MKDEV(capi_major, 0), NULL, + "capi"); #ifdef CONFIG_ISDN_CAPI_MIDDLEWARE if (capinc_tty_init() < 0) { diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index 005bd045d2eb..5faefeaf6790 100644 --- a/drivers/lguest/lg.h +++ b/drivers/lguest/lg.h @@ -136,7 +136,6 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user); * first step in the migration to the kernel types. pte_pfn is already defined * in the kernel. */ #define pgd_flags(x) (pgd_val(x) & ~PAGE_MASK) -#define pte_flags(x) (pte_val(x) & ~PAGE_MASK) #define pgd_pfn(x) (pgd_val(x) >> PAGE_SHIFT) /* interrupts_and_traps.c: */ diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c index dbaad39020a1..85a78672e952 100644 --- a/drivers/macintosh/adb.c +++ b/drivers/macintosh/adb.c @@ -855,7 +855,8 @@ adbdev_init(void) adb_dev_class = class_create(THIS_MODULE, "adb"); if (IS_ERR(adb_dev_class)) return; - device_create(adb_dev_class, NULL, MKDEV(ADB_MAJOR, 0), "adb"); + device_create_drvdata(adb_dev_class, NULL, MKDEV(ADB_MAJOR, 0), NULL, + "adb"); platform_device_register(&adb_pfdev); platform_driver_probe(&adb_pfdrv, adb_dummy_probe); diff --git a/drivers/mca/mca-bus.c b/drivers/mca/mca-bus.c index 67b8e9453b19..ef2dbfe74714 100644 --- a/drivers/mca/mca-bus.c +++ b/drivers/mca/mca-bus.c @@ -40,7 +40,7 @@ static struct mca_bus *mca_root_busses[MAX_MCA_BUSSES]; struct mca_device_info { short pos_id; /* the 2 byte pos id for this card */ - char name[DEVICE_NAME_SIZE]; + char name[50]; }; static int mca_bus_match (struct device *dev, struct device_driver *drv) diff --git a/drivers/media/common/ir-keymaps.c b/drivers/media/common/ir-keymaps.c index a3485817e46c..8fa91f846d59 100644 --- a/drivers/media/common/ir-keymaps.c +++ b/drivers/media/common/ir-keymaps.c @@ -2201,3 +2201,41 @@ IR_KEYTAB_TYPE ir_codes_powercolor_real_angel[IR_KEYTAB_SIZE] = { [0x25] = KEY_POWER, /* power */ }; EXPORT_SYMBOL_GPL(ir_codes_powercolor_real_angel); + +IR_KEYTAB_TYPE ir_codes_avermedia_a16d[IR_KEYTAB_SIZE] = { + [0x20] = KEY_LIST, + [0x00] = KEY_POWER, + [0x28] = KEY_1, + [0x18] = KEY_2, + [0x38] = KEY_3, + [0x24] = KEY_4, + [0x14] = KEY_5, + [0x34] = KEY_6, + [0x2c] = KEY_7, + [0x1c] = KEY_8, + [0x3c] = KEY_9, + [0x12] = KEY_SUBTITLE, + [0x22] = KEY_0, + [0x32] = KEY_REWIND, + [0x3a] = KEY_SHUFFLE, + [0x02] = KEY_PRINT, + [0x11] = KEY_CHANNELDOWN, + [0x31] = KEY_CHANNELUP, + [0x0c] = KEY_ZOOM, + [0x1e] = KEY_VOLUMEDOWN, + [0x3e] = KEY_VOLUMEUP, + [0x0a] = KEY_MUTE, + [0x04] = KEY_AUDIO, + [0x26] = KEY_RECORD, + [0x06] = KEY_PLAY, + [0x36] = KEY_STOP, + [0x16] = KEY_PAUSE, + [0x2e] = KEY_REWIND, + [0x0e] = KEY_FASTFORWARD, + [0x30] = KEY_TEXT, + [0x21] = KEY_GREEN, + [0x01] = KEY_BLUE, + [0x08] = KEY_EPG, + [0x2a] = KEY_MENU, +}; +EXPORT_SYMBOL_GPL(ir_codes_avermedia_a16d); diff --git a/drivers/media/common/tuners/Kconfig b/drivers/media/common/tuners/Kconfig index 85482960d012..850d5689b14d 100644 --- a/drivers/media/common/tuners/Kconfig +++ b/drivers/media/common/tuners/Kconfig @@ -34,6 +34,7 @@ config MEDIA_TUNER menuconfig MEDIA_TUNER_CUSTOMIZE bool "Customize analog and hybrid tuner modules to build" depends on MEDIA_TUNER + default n help This allows the user to deselect tuner drivers unnecessary for their hardware from the build. Use this option with care diff --git a/drivers/media/common/tuners/tda18271-common.c b/drivers/media/common/tuners/tda18271-common.c index f1894fec32b9..6fb5b4586569 100644 --- a/drivers/media/common/tuners/tda18271-common.c +++ b/drivers/media/common/tuners/tda18271-common.c @@ -649,9 +649,17 @@ int tda18271_calc_rf_cal(struct dvb_frontend *fe, u32 *freq) u8 val; int ret = tda18271_lookup_map(fe, RF_CAL, freq, &val); + /* The TDA18271HD/C1 rf_cal map lookup is expected to go out of range + * for frequencies above 61.1 MHz. In these cases, the internal RF + * tracking filters calibration mechanism is used. + * + * There is no need to warn the user about this. + */ + if (ret < 0) + goto fail; regs[R_EB14] = val; - +fail: return ret; } diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c index 89c01fb1f859..93063c6fbbf6 100644 --- a/drivers/media/common/tuners/tda18271-fe.c +++ b/drivers/media/common/tuners/tda18271-fe.c @@ -45,6 +45,21 @@ static inline int charge_pump_source(struct dvb_frontend *fe, int force) TDA18271_MAIN_PLL, force); } +static inline void tda18271_set_if_notch(struct dvb_frontend *fe) +{ + struct tda18271_priv *priv = fe->tuner_priv; + unsigned char *regs = priv->tda18271_regs; + + switch (priv->mode) { + case TDA18271_ANALOG: + regs[R_MPD] &= ~0x80; /* IF notch = 0 */ + break; + case TDA18271_DIGITAL: + regs[R_MPD] |= 0x80; /* IF notch = 1 */ + break; + } +} + static int tda18271_channel_configuration(struct dvb_frontend *fe, struct tda18271_std_map_item *map, u32 freq, u32 bw) @@ -60,25 +75,18 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, regs[R_EP3] &= ~0x1f; /* clear std bits */ regs[R_EP3] |= (map->agc_mode << 3) | map->std; - /* set rfagc to high speed mode */ - regs[R_EP3] &= ~0x04; + if (priv->id == TDA18271HDC2) { + /* set rfagc to high speed mode */ + regs[R_EP3] &= ~0x04; + } /* set cal mode to normal */ regs[R_EP4] &= ~0x03; - /* update IF output level & IF notch frequency */ + /* update IF output level */ regs[R_EP4] &= ~0x1c; /* clear if level bits */ regs[R_EP4] |= (map->if_lvl << 2); - switch (priv->mode) { - case TDA18271_ANALOG: - regs[R_MPD] &= ~0x80; /* IF notch = 0 */ - break; - case TDA18271_DIGITAL: - regs[R_MPD] |= 0x80; /* IF notch = 1 */ - break; - } - /* update FM_RFn */ regs[R_EP4] &= ~0x80; regs[R_EP4] |= map->fm_rfn << 7; @@ -95,6 +103,9 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, /* disable Power Level Indicator */ regs[R_EP1] |= 0x40; + /* make sure thermometer is off */ + regs[R_TM] &= ~0x10; + /* frequency dependent parameters */ tda18271_calc_ir_measure(fe, &freq); @@ -135,6 +146,7 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, switch (priv->role) { case TDA18271_MASTER: tda18271_calc_main_pll(fe, N); + tda18271_set_if_notch(fe); tda18271_write_regs(fe, R_MPD, 4); break; case TDA18271_SLAVE: @@ -142,6 +154,7 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, tda18271_write_regs(fe, R_CPD, 4); regs[R_MPD] = regs[R_CPD] & 0x7f; + tda18271_set_if_notch(fe); tda18271_write_regs(fe, R_MPD, 1); break; } @@ -160,12 +173,14 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, msleep(20); - /* set rfagc to normal speed mode */ - if (map->fm_rfn) - regs[R_EP3] &= ~0x04; - else - regs[R_EP3] |= 0x04; - ret = tda18271_write_regs(fe, R_EP3, 1); + if (priv->id == TDA18271HDC2) { + /* set rfagc to normal speed mode */ + if (map->fm_rfn) + regs[R_EP3] &= ~0x04; + else + regs[R_EP3] |= 0x04; + ret = tda18271_write_regs(fe, R_EP3, 1); + } fail: return ret; } @@ -507,7 +522,7 @@ static int tda18271_powerscan_init(struct dvb_frontend *fe) /* set cal mode to normal */ regs[R_EP4] &= ~0x03; - /* update IF output level & IF notch frequency */ + /* update IF output level */ regs[R_EP4] &= ~0x1c; /* clear if level bits */ ret = tda18271_write_regs(fe, R_EP3, 2); diff --git a/drivers/media/common/tuners/tda18271-maps.c b/drivers/media/common/tuners/tda18271-maps.c index 83e7561960c1..ab14ceb9e0ce 100644 --- a/drivers/media/common/tuners/tda18271-maps.c +++ b/drivers/media/common/tuners/tda18271-maps.c @@ -1,5 +1,5 @@ /* - tda18271-tables.c - driver for the Philips / NXP TDA18271 silicon tuner + tda18271-maps.c - driver for the Philips / NXP TDA18271 silicon tuner Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org> diff --git a/drivers/media/common/tuners/tuner-i2c.h b/drivers/media/common/tuners/tuner-i2c.h index cb1c7141f0c6..ef2aee7c576b 100644 --- a/drivers/media/common/tuners/tuner-i2c.h +++ b/drivers/media/common/tuners/tuner-i2c.h @@ -178,4 +178,12 @@ __fail: \ __ret; \ }) +#define hybrid_tuner_report_instance_count(state) \ +({ \ + int __ret = 0; \ + if (state) \ + __ret = state->i2c_props.count; \ + __ret; \ +}) + #endif /* __TUNER_I2C_H__ */ diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c index 0cbde17bfbb7..30eb07b7f9ef 100644 --- a/drivers/media/common/tuners/tuner-xc2028.c +++ b/drivers/media/common/tuners/tuner-xc2028.c @@ -254,7 +254,7 @@ static int load_all_firmwares(struct dvb_frontend *fe) { struct xc2028_data *priv = fe->tuner_priv; const struct firmware *fw = NULL; - unsigned char *p, *endp; + const unsigned char *p, *endp; int rc = 0; int n, n_array; char name[33]; diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c index ceae6db901ec..5f99de0ad612 100644 --- a/drivers/media/common/tuners/xc5000.c +++ b/drivers/media/common/tuners/xc5000.c @@ -36,6 +36,10 @@ static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); +static int xc5000_load_fw_on_attach; +module_param_named(init_fw, xc5000_load_fw_on_attach, int, 0644); +MODULE_PARM_DESC(init_fw, "Load firmware during driver initialization."); + #define dprintk(level,fmt, arg...) if (debug >= level) \ printk(KERN_INFO "%s: " fmt, "xc5000", ## arg) @@ -177,6 +181,7 @@ static XC_TV_STANDARD XC5000_Standard[MAX_TV_STANDARD] = { {"FM Radio-INPUT1", 0x0208, 0x9002} }; +static int xc5000_is_firmware_loaded(struct dvb_frontend *fe); static int xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len); static int xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len); static void xc5000_TunerReset(struct dvb_frontend *fe); @@ -277,7 +282,7 @@ static int xc_read_reg(struct xc5000_priv *priv, u16 regAddr, u16 *i2cData) return result; } -static int xc_load_i2c_sequence(struct dvb_frontend *fe, u8 i2c_sequence[]) +static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence) { struct xc5000_priv *priv = fe->tuner_priv; @@ -352,7 +357,7 @@ static int xc_SetTVStandard(struct xc5000_priv *priv, static int xc_shutdown(struct xc5000_priv *priv) { - return 0; + return XC_RESULT_SUCCESS; /* Fixme: cannot bring tuner back alive once shutdown * without reloading the driver modules. * return xc_write_reg(priv, XREG_POWER_DOWN, 0); @@ -685,6 +690,25 @@ static int xc5000_set_params(struct dvb_frontend *fe, return 0; } +static int xc5000_is_firmware_loaded(struct dvb_frontend *fe) +{ + struct xc5000_priv *priv = fe->tuner_priv; + int ret; + u16 id; + + ret = xc5000_readreg(priv, XREG_PRODUCT_ID, &id); + if (ret == XC_RESULT_SUCCESS) { + if (id == XC_PRODUCT_ID_FW_NOT_LOADED) + ret = XC_RESULT_RESET_FAILURE; + else + ret = XC_RESULT_SUCCESS; + } + + dprintk(1, "%s() returns %s id = 0x%x\n", __func__, + ret == XC_RESULT_SUCCESS ? "True" : "False", id); + return ret; +} + static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe); static int xc5000_set_analog_params(struct dvb_frontend *fe, @@ -693,7 +717,7 @@ static int xc5000_set_analog_params(struct dvb_frontend *fe, struct xc5000_priv *priv = fe->tuner_priv; int ret; - if(priv->fwloaded == 0) + if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) xc_load_fw_and_init_tuner(fe); dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n", @@ -808,11 +832,10 @@ static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe) struct xc5000_priv *priv = fe->tuner_priv; int ret = 0; - if (priv->fwloaded == 0) { + if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) { ret = xc5000_fwupload(fe); if (ret != XC_RESULT_SUCCESS) return ret; - priv->fwloaded = 1; } /* Start the tuner self-calibration process */ @@ -852,7 +875,6 @@ static int xc5000_sleep(struct dvb_frontend *fe) return -EREMOTEIO; } else { - /* priv->fwloaded = 0; */ return XC_RESULT_SUCCESS; } } @@ -933,7 +955,6 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, cfg->i2c_address); printk(KERN_INFO "xc5000: Firmware has been loaded previously\n"); - priv->fwloaded = 1; break; case XC_PRODUCT_ID_FW_NOT_LOADED: printk(KERN_INFO @@ -941,7 +962,6 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, cfg->i2c_address); printk(KERN_INFO "xc5000: Firmware has not been loaded previously\n"); - priv->fwloaded = 0; break; default: printk(KERN_ERR @@ -956,6 +976,9 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, fe->tuner_priv = priv; + if (xc5000_load_fw_on_attach) + xc5000_init(fe); + return fe; } EXPORT_SYMBOL(xc5000_attach); diff --git a/drivers/media/common/tuners/xc5000_priv.h b/drivers/media/common/tuners/xc5000_priv.h index ecebfe4745ad..a72a9887fe7f 100644 --- a/drivers/media/common/tuners/xc5000_priv.h +++ b/drivers/media/common/tuners/xc5000_priv.h @@ -30,7 +30,6 @@ struct xc5000_priv { u32 bandwidth; u8 video_standard; u8 rf_mode; - u8 fwloaded; void *devptr; }; diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c index 8b56d929f7fd..10f1b3a02b6b 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.c +++ b/drivers/media/dvb/dvb-core/dvbdev.c @@ -229,9 +229,9 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, mutex_unlock(&dvbdev_register_lock); - clsdev = device_create(dvb_class, adap->device, + clsdev = device_create_drvdata(dvb_class, adap->device, MKDEV(DVB_MAJOR, nums2minor(adap->num, type, id)), - "dvb%d.%s%d", adap->num, dnames[type], id); + NULL, "dvb%d.%s%d", adap->num, dnames[type], id); if (IS_ERR(clsdev)) { printk(KERN_ERR "%s: failed to create device dvb%d.%s%d (%ld)\n", __func__, adap->num, dnames[type], id, PTR_ERR(clsdev)); diff --git a/drivers/media/dvb/dvb-usb/Kconfig b/drivers/media/dvb/dvb-usb/Kconfig index f00a0eb40420..7847a8320fe7 100644 --- a/drivers/media/dvb/dvb-usb/Kconfig +++ b/drivers/media/dvb/dvb-usb/Kconfig @@ -76,6 +76,7 @@ config DVB_USB_DIB0700 select DVB_DIB3000MC select MEDIA_TUNER_MT2060 if !DVB_FE_CUSTOMISE select MEDIA_TUNER_MT2266 if !DVB_FE_CUSTOMISE + select MEDIA_TUNER_XC2028 if !DVB_FE_CUSTOMISE select DVB_TUNER_DIB0070 help Support for USB2.0/1.1 DVB receivers based on the DiB0700 USB bridge. The @@ -107,6 +108,7 @@ config DVB_USB_CXUSB select DVB_MT352 if !DVB_FE_CUSTOMISE select DVB_ZL10353 if !DVB_FE_CUSTOMISE select MEDIA_TUNER_SIMPLE if !DVB_FE_CUSTOMISE + select MEDIA_TUNER_XC2028 if !DVB_FE_CUSTOMISE help Say Y here to support the Conexant USB2.0 hybrid reference design. Currently, only DVB and ATSC modes are supported, analog mode @@ -120,6 +122,8 @@ config DVB_USB_M920X depends on DVB_USB select DVB_MT352 if !DVB_FE_CUSTOMISE select MEDIA_TUNER_QT1010 if !DVB_FE_CUSTOMISE + select MEDIA_TUNER_TDA827X if !DVB_FE_CUSTOMISE + select DVB_TDA1004X if !DVB_FE_CUSTOMISE help Say Y here to support the MSI Mega Sky 580 USB2.0 DVB-T receiver. Currently, only devices with a product id of @@ -241,3 +245,13 @@ config DVB_USB_AF9005_REMOTE Say Y here to support the default remote control decoding for the Afatech AF9005 based receiver. +config DVB_USB_ANYSEE + tristate "Anysee DVB-T/C USB2.0 support" + depends on DVB_USB + select DVB_PLL if !DVB_FE_CUSTOMISE + select DVB_MT352 if !DVB_FE_CUSTOMISE + select DVB_ZL10353 if !DVB_FE_CUSTOMISE + select DVB_TDA10023 if !DVB_FE_CUSTOMISE + help + Say Y here to support the Anysee E30, Anysee E30 Plus or + Anysee E30 C Plus DVB USB2.0 receiver. diff --git a/drivers/media/dvb/dvb-usb/Makefile b/drivers/media/dvb/dvb-usb/Makefile index c6511a6c0ab8..44c11e45e564 100644 --- a/drivers/media/dvb/dvb-usb/Makefile +++ b/drivers/media/dvb/dvb-usb/Makefile @@ -61,6 +61,9 @@ obj-$(CONFIG_DVB_USB_AF9005) += dvb-usb-af9005.o dvb-usb-af9005-remote-objs = af9005-remote.o obj-$(CONFIG_DVB_USB_AF9005_REMOTE) += dvb-usb-af9005-remote.o +dvb-usb-anysee-objs = anysee.o +obj-$(CONFIG_DVB_USB_ANYSEE) += dvb-usb-anysee.o + EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/ # due to tuner-xc3028 EXTRA_CFLAGS += -Idrivers/media/common/tuners diff --git a/drivers/media/dvb/dvb-usb/anysee.c b/drivers/media/dvb/dvb-usb/anysee.c new file mode 100644 index 000000000000..adfd4fc82efd --- /dev/null +++ b/drivers/media/dvb/dvb-usb/anysee.c @@ -0,0 +1,553 @@ +/* + * DVB USB Linux driver for Anysee E30 DVB-C & DVB-T USB2.0 receiver + * + * Copyright (C) 2007 Antti Palosaari <crope@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * TODO: + * - add smart card reader support for Conditional Access (CA) + * + * Card reader in Anysee is nothing more than ISO 7816 card reader. + * There is no hardware CAM in any Anysee device sold. + * In my understanding it should be implemented by making own module + * for ISO 7816 card reader, like dvb_ca_en50221 is implemented. This + * module registers serial interface that can be used to communicate + * with any ISO 7816 smart card. + * + * Any help according to implement serial smart card reader support + * is highly welcome! + */ + +#include "anysee.h" +#include "tda1002x.h" +#include "mt352.h" +#include "mt352_priv.h" +#include "zl10353.h" + +/* debug */ +static int dvb_usb_anysee_debug; +module_param_named(debug, dvb_usb_anysee_debug, int, 0644); +MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS); +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); + +struct mutex anysee_usb_mutex; + +static int anysee_ctrl_msg(struct dvb_usb_device *d, u8 *sbuf, u8 slen, + u8 *rbuf, u8 rlen) +{ + struct anysee_state *state = d->priv; + int act_len, ret; + u8 buf[64]; + + if (slen > sizeof(buf)) + slen = sizeof(buf); + memcpy(&buf[0], sbuf, slen); + buf[60] = state->seq++; + + if (mutex_lock_interruptible(&anysee_usb_mutex) < 0) + return -EAGAIN; + + /* We need receive one message more after dvb_usb_generic_rw due + to weird transaction flow, which is 1 x send + 2 x receive. */ + ret = dvb_usb_generic_rw(d, buf, sizeof(buf), buf, sizeof(buf), 0); + + if (!ret) { + /* receive 2nd answer */ + ret = usb_bulk_msg(d->udev, usb_rcvbulkpipe(d->udev, + d->props.generic_bulk_ctrl_endpoint), buf, sizeof(buf), + &act_len, 2000); + if (ret) + err("%s: recv bulk message failed: %d", __func__, ret); + else { + deb_xfer("<<< "); + debug_dump(buf, act_len, deb_xfer); + } + } + + /* read request, copy returned data to return buf */ + if (!ret && rbuf && rlen) + memcpy(rbuf, buf, rlen); + + mutex_unlock(&anysee_usb_mutex); + + return ret; +} + +static int anysee_read_reg(struct dvb_usb_device *d, u16 reg, u8 *val) +{ + u8 buf[] = {CMD_REG_READ, reg >> 8, reg & 0xff, 0x01}; + int ret; + ret = anysee_ctrl_msg(d, buf, sizeof(buf), val, 1); + deb_info("%s: reg:%04x val:%02x\n", __func__, reg, *val); + return ret; +} + +static int anysee_write_reg(struct dvb_usb_device *d, u16 reg, u8 val) +{ + u8 buf[] = {CMD_REG_WRITE, reg >> 8, reg & 0xff, 0x01, val}; + deb_info("%s: reg:%04x val:%02x\n", __func__, reg, val); + return anysee_ctrl_msg(d, buf, sizeof(buf), NULL, 0); +} + +static int anysee_get_hw_info(struct dvb_usb_device *d, u8 *id) +{ + u8 buf[] = {CMD_GET_HW_INFO}; + return anysee_ctrl_msg(d, buf, sizeof(buf), id, 3); +} + +static int anysee_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) +{ + u8 buf[] = {CMD_STREAMING_CTRL, (u8)onoff, 0x00}; + deb_info("%s: onoff:%02x\n", __func__, onoff); + return anysee_ctrl_msg(adap->dev, buf, sizeof(buf), NULL, 0); +} + +static int anysee_led_ctrl(struct dvb_usb_device *d, u8 mode, u8 interval) +{ + u8 buf[] = {CMD_LED_AND_IR_CTRL, 0x01, mode, interval}; + deb_info("%s: state:%02x interval:%02x\n", __func__, mode, interval); + return anysee_ctrl_msg(d, buf, sizeof(buf), NULL, 0); +} + +static int anysee_ir_ctrl(struct dvb_usb_device *d, u8 onoff) +{ + u8 buf[] = {CMD_LED_AND_IR_CTRL, 0x02, onoff}; + deb_info("%s: onoff:%02x\n", __func__, onoff); + return anysee_ctrl_msg(d, buf, sizeof(buf), NULL, 0); +} + +static int anysee_init(struct dvb_usb_device *d) +{ + int ret; + /* LED light */ + ret = anysee_led_ctrl(d, 0x01, 0x03); + if (ret) + return ret; + + /* enable IR */ + ret = anysee_ir_ctrl(d, 1); + if (ret) + return ret; + + return 0; +} + +/* I2C */ +static int anysee_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msg, + int num) +{ + struct dvb_usb_device *d = i2c_get_adapdata(adap); + int ret, inc, i = 0; + + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) + return -EAGAIN; + + while (i < num) { + if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) { + u8 buf[6]; + buf[0] = CMD_I2C_READ; + buf[1] = msg[i].addr + 1; + buf[2] = msg[i].buf[0]; + buf[3] = 0x00; + buf[4] = 0x00; + buf[5] = 0x01; + ret = anysee_ctrl_msg(d, buf, sizeof(buf), msg[i+1].buf, + msg[i+1].len); + inc = 2; + } else { + u8 buf[4+msg[i].len]; + buf[0] = CMD_I2C_WRITE; + buf[1] = msg[i].addr; + buf[2] = msg[i].len; + buf[3] = 0x01; + memcpy(&buf[4], msg[i].buf, msg[i].len); + ret = anysee_ctrl_msg(d, buf, sizeof(buf), NULL, 0); + inc = 1; + } + if (ret) + return ret; + + i += inc; + } + + mutex_unlock(&d->i2c_mutex); + + return i; +} + +static u32 anysee_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static struct i2c_algorithm anysee_i2c_algo = { + .master_xfer = anysee_master_xfer, + .functionality = anysee_i2c_func, +}; + +static int anysee_mt352_demod_init(struct dvb_frontend *fe) +{ + static u8 clock_config [] = { CLOCK_CTL, 0x38, 0x28 }; + static u8 reset [] = { RESET, 0x80 }; + static u8 adc_ctl_1_cfg [] = { ADC_CTL_1, 0x40 }; + static u8 agc_cfg [] = { AGC_TARGET, 0x28, 0x20 }; + static u8 gpp_ctl_cfg [] = { GPP_CTL, 0x33 }; + static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 }; + + mt352_write(fe, clock_config, sizeof(clock_config)); + udelay(200); + mt352_write(fe, reset, sizeof(reset)); + mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg)); + + mt352_write(fe, agc_cfg, sizeof(agc_cfg)); + mt352_write(fe, gpp_ctl_cfg, sizeof(gpp_ctl_cfg)); + mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg)); + + return 0; +} + +/* Callbacks for DVB USB */ +static struct tda10023_config anysee_tda10023_config = { + .demod_address = 0x1a, + .invert = 0, + .xtal = 16000000, + .pll_m = 11, + .pll_p = 3, + .pll_n = 1, + .output_mode = TDA10023_OUTPUT_MODE_PARALLEL_C, + .deltaf = 0xfeeb, +}; + +static struct mt352_config anysee_mt352_config = { + .demod_address = 0x1e, + .demod_init = anysee_mt352_demod_init, +}; + +static struct zl10353_config anysee_zl10353_config = { + .demod_address = 0x1e, + .parallel_ts = 1, +}; + +static int anysee_frontend_attach(struct dvb_usb_adapter *adap) +{ + int ret; + struct anysee_state *state = adap->dev->priv; + u8 hw_info[3]; + u8 io_d; /* IO port D */ + + /* check which hardware we have + We must do this call two times to get reliable values (hw bug). */ + ret = anysee_get_hw_info(adap->dev, hw_info); + if (ret) + return ret; + ret = anysee_get_hw_info(adap->dev, hw_info); + if (ret) + return ret; + + /* Meaning of these info bytes are guessed. */ + info("firmware version:%d.%d.%d hardware id:%d", + 0, hw_info[1], hw_info[2], hw_info[0]); + + ret = anysee_read_reg(adap->dev, 0xb0, &io_d); /* IO port D */ + if (ret) + return ret; + deb_info("%s: IO port D:%02x\n", __func__, io_d); + + /* Select demod using trial and error method. */ + + /* Try to attach demodulator in following order: + model demod hw firmware + 1. E30 MT352 02 0.2.1 + 2. E30 ZL10353 02 0.2.1 + 3. E30 Plus ZL10353 06 0.1.0 + 4. E30C Plus TDA10023 0a 0.1.0 rev 0.2 + 4. E30C Plus TDA10023 0f 0.1.2 rev 0.4 + */ + + /* Zarlink MT352 DVB-T demod inside of Samsung DNOS404ZH102A NIM */ + adap->fe = dvb_attach(mt352_attach, &anysee_mt352_config, + &adap->dev->i2c_adap); + if (adap->fe != NULL) { + state->tuner = DVB_PLL_THOMSON_DTT7579; + return 0; + } + + /* Zarlink ZL10353 DVB-T demod inside of Samsung DNOS404ZH103A NIM */ + adap->fe = dvb_attach(zl10353_attach, &anysee_zl10353_config, + &adap->dev->i2c_adap); + if (adap->fe != NULL) { + state->tuner = DVB_PLL_THOMSON_DTT7579; + return 0; + } + + /* connect demod on IO port D for TDA10023 & ZL10353 */ + ret = anysee_write_reg(adap->dev, 0xb0, 0x25); + if (ret) + return ret; + + /* Zarlink ZL10353 DVB-T demod inside of Samsung DNOS404ZH103A NIM */ + adap->fe = dvb_attach(zl10353_attach, &anysee_zl10353_config, + &adap->dev->i2c_adap); + if (adap->fe != NULL) { + state->tuner = DVB_PLL_THOMSON_DTT7579; + return 0; + } + + /* IO port E - E30C rev 0.4 board requires this */ + ret = anysee_write_reg(adap->dev, 0xb1, 0xa7); + if (ret) + return ret; + + /* Philips TDA10023 DVB-C demod */ + adap->fe = dvb_attach(tda10023_attach, &anysee_tda10023_config, + &adap->dev->i2c_adap, 0x48); + if (adap->fe != NULL) { + state->tuner = DVB_PLL_SAMSUNG_DTOS403IH102A; + return 0; + } + + /* return IO port D to init value for safe */ + ret = anysee_write_reg(adap->dev, 0xb0, io_d); + if (ret) + return ret; + + err("Unkown Anysee version: %02x %02x %02x. "\ + "Please report the <linux-dvb@linuxtv.org>.", + hw_info[0], hw_info[1], hw_info[2]); + + return -ENODEV; +} + +static int anysee_tuner_attach(struct dvb_usb_adapter *adap) +{ + struct anysee_state *state = adap->dev->priv; + deb_info("%s: \n", __func__); + + switch (state->tuner) { + case DVB_PLL_THOMSON_DTT7579: + /* Thomson dtt7579 (not sure) PLL inside of: + Samsung DNOS404ZH102A NIM + Samsung DNOS404ZH103A NIM */ + dvb_attach(dvb_pll_attach, adap->fe, 0x61, + NULL, DVB_PLL_THOMSON_DTT7579); + break; + case DVB_PLL_SAMSUNG_DTOS403IH102A: + /* Unknown PLL inside of Samsung DTOS403IH102A tuner module */ + dvb_attach(dvb_pll_attach, adap->fe, 0xc0, + &adap->dev->i2c_adap, DVB_PLL_SAMSUNG_DTOS403IH102A); + break; + } + + return 0; +} + +static int anysee_rc_query(struct dvb_usb_device *d, u32 *event, int *state) +{ + u8 buf[] = {CMD_GET_IR_CODE}; + struct dvb_usb_rc_key *keymap = d->props.rc_key_map; + u8 ircode[2]; + int i, ret; + + ret = anysee_ctrl_msg(d, buf, sizeof(buf), &ircode[0], 2); + if (ret) + return ret; + + *event = 0; + *state = REMOTE_NO_KEY_PRESSED; + + for (i = 0; i < d->props.rc_key_map_size; i++) { + if (keymap[i].custom == ircode[0] && + keymap[i].data == ircode[1]) { + *event = keymap[i].event; + *state = REMOTE_KEY_PRESSED; + return 0; + } + } + return 0; +} + +static struct dvb_usb_rc_key anysee_rc_keys[] = { + { 0x01, 0x00, KEY_0 }, + { 0x01, 0x01, KEY_1 }, + { 0x01, 0x02, KEY_2 }, + { 0x01, 0x03, KEY_3 }, + { 0x01, 0x04, KEY_4 }, + { 0x01, 0x05, KEY_5 }, + { 0x01, 0x06, KEY_6 }, + { 0x01, 0x07, KEY_7 }, + { 0x01, 0x08, KEY_8 }, + { 0x01, 0x09, KEY_9 }, + { 0x01, 0x0a, KEY_POWER }, + { 0x01, 0x0b, KEY_DOCUMENTS }, /* * */ + { 0x01, 0x19, KEY_FAVORITES }, + { 0x01, 0x20, KEY_SLEEP }, + { 0x01, 0x21, KEY_MODE }, /* 4:3 / 16:9 select */ + { 0x01, 0x22, KEY_ZOOM }, + { 0x01, 0x47, KEY_TEXT }, + { 0x01, 0x16, KEY_TV }, /* TV / radio select */ + { 0x01, 0x1e, KEY_LANGUAGE }, /* Second Audio Program */ + { 0x01, 0x1a, KEY_SUBTITLE }, + { 0x01, 0x1b, KEY_CAMERA }, /* screenshot */ + { 0x01, 0x42, KEY_MUTE }, + { 0x01, 0x0e, KEY_MENU }, + { 0x01, 0x0f, KEY_EPG }, + { 0x01, 0x17, KEY_INFO }, + { 0x01, 0x10, KEY_EXIT }, + { 0x01, 0x13, KEY_VOLUMEUP }, + { 0x01, 0x12, KEY_VOLUMEDOWN }, + { 0x01, 0x11, KEY_CHANNELUP }, + { 0x01, 0x14, KEY_CHANNELDOWN }, + { 0x01, 0x15, KEY_OK }, + { 0x01, 0x1d, KEY_RED }, + { 0x01, 0x1f, KEY_GREEN }, + { 0x01, 0x1c, KEY_YELLOW }, + { 0x01, 0x44, KEY_BLUE }, + { 0x01, 0x0c, KEY_SHUFFLE }, /* snapshot */ + { 0x01, 0x48, KEY_STOP }, + { 0x01, 0x50, KEY_PLAY }, + { 0x01, 0x51, KEY_PAUSE }, + { 0x01, 0x49, KEY_RECORD }, + { 0x01, 0x18, KEY_PREVIOUS }, /* |<< */ + { 0x01, 0x0d, KEY_NEXT }, /* >>| */ + { 0x01, 0x24, KEY_PROG1 }, /* F1 */ + { 0x01, 0x25, KEY_PROG2 }, /* F2 */ +}; + +/* DVB USB Driver stuff */ +static struct dvb_usb_device_properties anysee_properties; + +static int anysee_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct dvb_usb_device *d; + struct usb_host_interface *alt; + int ret; + + mutex_init(&anysee_usb_mutex); + + /* There is one interface with two alternate settings. + Alternate setting 0 is for bulk transfer. + Alternate setting 1 is for isochronous transfer. + We use bulk transfer (alternate setting 0). */ + if (intf->num_altsetting < 1) + return -ENODEV; + + ret = dvb_usb_device_init(intf, &anysee_properties, THIS_MODULE, &d, + adapter_nr); + if (ret) + return ret; + + alt = usb_altnum_to_altsetting(intf, 0); + if (alt == NULL) { + deb_info("%s: no alt found!\n", __func__); + return -ENODEV; + } + + ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, + alt->desc.bAlternateSetting); + if (ret) + return ret; + + if (d) + ret = anysee_init(d); + + return ret; +} + +static struct usb_device_id anysee_table [] = { + { USB_DEVICE(USB_VID_CYPRESS, USB_PID_ANYSEE) }, + { USB_DEVICE(USB_VID_AMT, USB_PID_ANYSEE) }, + { } /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(usb, anysee_table); + +static struct dvb_usb_device_properties anysee_properties = { + .caps = DVB_USB_IS_AN_I2C_ADAPTER, + + .usb_ctrl = DEVICE_SPECIFIC, + + .size_of_priv = sizeof(struct anysee_state), + + .num_adapters = 1, + .adapter = { + { + .streaming_ctrl = anysee_streaming_ctrl, + .frontend_attach = anysee_frontend_attach, + .tuner_attach = anysee_tuner_attach, + .stream = { + .type = USB_BULK, + .count = 8, + .endpoint = 0x82, + .u = { + .bulk = { + .buffersize = 512, + } + } + }, + } + }, + + .rc_key_map = anysee_rc_keys, + .rc_key_map_size = ARRAY_SIZE(anysee_rc_keys), + .rc_query = anysee_rc_query, + .rc_interval = 200, /* windows driver uses 500ms */ + + .i2c_algo = &anysee_i2c_algo, + + .generic_bulk_ctrl_endpoint = 1, + + .num_device_descs = 1, + .devices = { + { + .name = "Anysee DVB USB2.0", + .cold_ids = {NULL}, + .warm_ids = {&anysee_table[0], + &anysee_table[1], NULL}, + }, + } +}; + +static struct usb_driver anysee_driver = { + .name = "dvb_usb_anysee", + .probe = anysee_probe, + .disconnect = dvb_usb_device_exit, + .id_table = anysee_table, +}; + +/* module stuff */ +static int __init anysee_module_init(void) +{ + int ret; + + ret = usb_register(&anysee_driver); + if (ret) + err("%s: usb_register failed. Error number %d", __func__, ret); + + return ret; +} + +static void __exit anysee_module_exit(void) +{ + /* deregister this driver from the USB subsystem */ + usb_deregister(&anysee_driver); +} + +module_init(anysee_module_init); +module_exit(anysee_module_exit); + +MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); +MODULE_DESCRIPTION("Driver Anysee E30 DVB-C & DVB-T USB2.0"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb/dvb-usb/anysee.h b/drivers/media/dvb/dvb-usb/anysee.h new file mode 100644 index 000000000000..7ca01ff6e13c --- /dev/null +++ b/drivers/media/dvb/dvb-usb/anysee.h @@ -0,0 +1,304 @@ +/* + * DVB USB Linux driver for Anysee E30 DVB-C & DVB-T USB2.0 receiver + * + * Copyright (C) 2007 Antti Palosaari <crope@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * TODO: + * - add smart card reader support for Conditional Access (CA) + * + * Card reader in Anysee is nothing more than ISO 7816 card reader. + * There is no hardware CAM in any Anysee device sold. + * In my understanding it should be implemented by making own module + * for ISO 7816 card reader, like dvb_ca_en50221 is implemented. This + * module registers serial interface that can be used to communicate + * with any ISO 7816 smart card. + * + * Any help according to implement serial smart card reader support + * is highly welcome! + */ + +#ifndef _DVB_USB_ANYSEE_H_ +#define _DVB_USB_ANYSEE_H_ + +#define DVB_USB_LOG_PREFIX "anysee" +#include "dvb-usb.h" + +#define deb_info(args...) dprintk(dvb_usb_anysee_debug, 0x01, args) +#define deb_xfer(args...) dprintk(dvb_usb_anysee_debug, 0x02, args) +#define deb_rc(args...) dprintk(dvb_usb_anysee_debug, 0x04, args) +#define deb_reg(args...) dprintk(dvb_usb_anysee_debug, 0x08, args) +#define deb_i2c(args...) dprintk(dvb_usb_anysee_debug, 0x10, args) +#define deb_fw(args...) dprintk(dvb_usb_anysee_debug, 0x20, args) + +enum cmd { + CMD_I2C_READ = 0x33, + CMD_I2C_WRITE = 0x31, + CMD_REG_READ = 0xb0, + CMD_REG_WRITE = 0xb1, + CMD_STREAMING_CTRL = 0x12, + CMD_LED_AND_IR_CTRL = 0x16, + CMD_GET_IR_CODE = 0x41, + CMD_GET_HW_INFO = 0x19, + CMD_SMARTCARD = 0x34, +}; + +struct anysee_state { + u8 tuner; + u8 seq; +}; + +#endif + +/*************************************************************************** + * USB API description (reverse engineered) + *************************************************************************** + +Transaction flow: +================= +BULK[00001] >>> REQUEST PACKET 64 bytes +BULK[00081] <<< REPLY PACKET #1 64 bytes (PREVIOUS TRANSACTION REPLY) +BULK[00081] <<< REPLY PACKET #2 64 bytes (CURRENT TRANSACTION REPLY) + +General reply packet(s) are always used if not own reply defined. + +============================================================================ +| 00-63 | GENERAL REPLY PACKET #1 (PREVIOUS REPLY) +============================================================================ +| 00 | reply data (if any) from previous transaction +| | Just same reply packet as returned during previous transaction. +| | Needed only if reply is missed in previous transaction. +| | Just skip normally. +---------------------------------------------------------------------------- +| 01-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | GENERAL REPLY PACKET #2 (CURRENT REPLY) +============================================================================ +| 00 | reply data (if any) +---------------------------------------------------------------------------- +| 01-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | I2C WRITE REQUEST PACKET +============================================================================ +| 00 | 0x31 I2C write command +---------------------------------------------------------------------------- +| 01 | i2c address +---------------------------------------------------------------------------- +| 02 | data length +| | 0x02 (for typical I2C reg / val pair) +---------------------------------------------------------------------------- +| 03 | 0x01 +---------------------------------------------------------------------------- +| 04- | data +---------------------------------------------------------------------------- +| -59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | I2C READ REQUEST PACKET +============================================================================ +| 00 | 0x33 I2C read command +---------------------------------------------------------------------------- +| 01 | i2c address + 1 +---------------------------------------------------------------------------- +| 02 | register +---------------------------------------------------------------------------- +| 03 | 0x00 +---------------------------------------------------------------------------- +| 04 | 0x00 +---------------------------------------------------------------------------- +| 05 | 0x01 +---------------------------------------------------------------------------- +| 06-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | USB CONTROLLER REGISTER WRITE REQUEST PACKET +============================================================================ +| 00 | 0xb1 register write command +---------------------------------------------------------------------------- +| 01-02 | register +---------------------------------------------------------------------------- +| 03 | 0x01 +---------------------------------------------------------------------------- +| 04 | value +---------------------------------------------------------------------------- +| 05-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | USB CONTROLLER REGISTER READ REQUEST PACKET +============================================================================ +| 00 | 0xb0 register read command +---------------------------------------------------------------------------- +| 01-02 | register +---------------------------------------------------------------------------- +| 03 | 0x01 +---------------------------------------------------------------------------- +| 04-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | LED CONTROL REQUEST PACKET +============================================================================ +| 00 | 0x16 LED and IR control command +---------------------------------------------------------------------------- +| 01 | 0x01 (LED) +---------------------------------------------------------------------------- +| 03 | 0x00 blink +| | 0x01 lights continuously +---------------------------------------------------------------------------- +| 04 | blink interval +| | 0x00 fastest (looks like LED lights continuously) +| | 0xff slowest +---------------------------------------------------------------------------- +| 05-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | IR CONTROL REQUEST PACKET +============================================================================ +| 00 | 0x16 LED and IR control command +---------------------------------------------------------------------------- +| 01 | 0x02 (IR) +---------------------------------------------------------------------------- +| 03 | 0x00 IR disabled +| | 0x01 IR enabled +---------------------------------------------------------------------------- +| 04-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | STREAMING CONTROL REQUEST PACKET +============================================================================ +| 00 | 0x12 streaming control command +---------------------------------------------------------------------------- +| 01 | 0x00 streaming disabled +| | 0x01 streaming enabled +---------------------------------------------------------------------------- +| 02 | 0x00 +---------------------------------------------------------------------------- +| 03-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | REMOTE CONTROL REQUEST PACKET +============================================================================ +| 00 | 0x41 remote control command +---------------------------------------------------------------------------- +| 01-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | REMOTE CONTROL REPLY PACKET +============================================================================ +| 00 | 0x00 code not received +| | 0x01 code received +---------------------------------------------------------------------------- +| 01 | remote control code +---------------------------------------------------------------------------- +| 02-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | GET HARDWARE INFO REQUEST PACKET +============================================================================ +| 00 | 0x19 get hardware info command +---------------------------------------------------------------------------- +| 01-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | GET HARDWARE INFO REPLY PACKET +============================================================================ +| 00 | hardware id +---------------------------------------------------------------------------- +| 01-02 | firmware version +---------------------------------------------------------------------------- +| 03-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +============================================================================ +| 00-63 | SMART CARD READER PACKET +============================================================================ +| 00 | 0x34 smart card reader command +---------------------------------------------------------------------------- +| xx | +---------------------------------------------------------------------------- +| xx-59 | don't care +---------------------------------------------------------------------------- +| 60 | packet sequence number +---------------------------------------------------------------------------- +| 61-63 | don't care +---------------------------------------------------------------------------- + +*/ diff --git a/drivers/media/dvb/dvb-usb/au6610.c b/drivers/media/dvb/dvb-usb/au6610.c index 2ccb90fa60c8..eb34cc3894e0 100644 --- a/drivers/media/dvb/dvb-usb/au6610.c +++ b/drivers/media/dvb/dvb-usb/au6610.c @@ -1,24 +1,31 @@ -/* DVB USB compliant linux driver for Sigmatek DVB-110 DVB-T USB2.0 receiver +/* + * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0. * * Copyright (C) 2006 Antti Palosaari <crope@iki.fi> * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation, version 2. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. * - * see Documentation/dvb/README.dvb-usb for more information + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "au6610.h" - #include "zl10353.h" #include "qt1010.h" /* debug */ static int dvb_usb_au6610_debug; module_param_named(debug, dvb_usb_au6610_debug, int, 0644); -MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); - +MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS); DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr, @@ -42,9 +49,8 @@ static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr, } ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation, - USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index, usb_buf, - sizeof(usb_buf), AU6610_USB_TIMEOUT); - + USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index, + usb_buf, sizeof(usb_buf), AU6610_USB_TIMEOUT); if (ret < 0) return ret; @@ -116,15 +122,6 @@ static struct i2c_algorithm au6610_i2c_algo = { }; /* Callbacks for DVB USB */ -static int au6610_identify_state(struct usb_device *udev, - struct dvb_usb_device_properties *props, - struct dvb_usb_device_description **desc, - int *cold) -{ - *cold = 0; - return 0; -} - static struct zl10353_config au6610_zl10353_config = { .demod_address = 0x0f, .no_tuner = 1, @@ -133,12 +130,12 @@ static struct zl10353_config au6610_zl10353_config = { static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap) { - if ((adap->fe = dvb_attach(zl10353_attach, &au6610_zl10353_config, - &adap->dev->i2c_adap)) != NULL) { - return 0; - } + adap->fe = dvb_attach(zl10353_attach, &au6610_zl10353_config, + &adap->dev->i2c_adap); + if (adap->fe == NULL) + return -ENODEV; - return -EIO; + return 0; } static struct qt1010_config au6610_qt1010_config = { @@ -171,7 +168,7 @@ static int au6610_probe(struct usb_interface *intf, alt = usb_altnum_to_altsetting(intf, AU6610_ALTSETTING); if (alt == NULL) { - deb_rc("no alt found!\n"); + deb_info("%s: no alt found!\n", __func__); return -ENODEV; } ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, @@ -181,18 +178,19 @@ static int au6610_probe(struct usb_interface *intf, return ret; } - static struct usb_device_id au6610_table [] = { { USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110) }, { } /* Terminating entry */ }; -MODULE_DEVICE_TABLE (usb, au6610_table); +MODULE_DEVICE_TABLE(usb, au6610_table); static struct dvb_usb_device_properties au6610_properties = { .caps = DVB_USB_IS_AN_I2C_ADAPTER, + .usb_ctrl = DEVICE_SPECIFIC, - .size_of_priv = 0, - .identify_state = au6610_identify_state, + + .size_of_priv = 0, + .num_adapters = 1, .adapter = { { @@ -206,20 +204,22 @@ static struct dvb_usb_device_properties au6610_properties = { .u = { .isoc = { .framesperurb = 40, - .framesize = 942, /* maximum packet size */ - .interval = 1.25, /* 125 us */ + .framesize = 942, + .interval = 1, } } }, } }, + .i2c_algo = &au6610_i2c_algo, + .num_device_descs = 1, .devices = { { - "Sigmatek DVB-110 DVB-T USB2.0", - { &au6610_table[0], NULL }, - { NULL }, + .name = "Sigmatek DVB-110 DVB-T USB2.0", + .cold_ids = {NULL}, + .warm_ids = {&au6610_table[0], NULL}, }, } }; @@ -236,12 +236,11 @@ static int __init au6610_module_init(void) { int ret; - if ((ret = usb_register(&au6610_driver))) { + ret = usb_register(&au6610_driver); + if (ret) err("usb_register failed. Error number %d", ret); - return ret; - } - return 0; + return ret; } static void __exit au6610_module_exit(void) @@ -250,10 +249,10 @@ static void __exit au6610_module_exit(void) usb_deregister(&au6610_driver); } -module_init (au6610_module_init); -module_exit (au6610_module_exit); +module_init(au6610_module_init); +module_exit(au6610_module_exit); MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); -MODULE_DESCRIPTION("Driver Sigmatek DVB-110 DVB-T USB2.0 / AU6610"); +MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0"); MODULE_VERSION("0.1"); MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb/dvb-usb/au6610.h b/drivers/media/dvb/dvb-usb/au6610.h index 4161b054c713..7849abe2c614 100644 --- a/drivers/media/dvb/dvb-usb/au6610.h +++ b/drivers/media/dvb/dvb-usb/au6610.h @@ -1,10 +1,30 @@ +/* + * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0. + * + * Copyright (C) 2006 Antti Palosaari <crope@iki.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + #ifndef _DVB_USB_AU6610_H_ #define _DVB_USB_AU6610_H_ #define DVB_USB_LOG_PREFIX "au6610" #include "dvb-usb.h" -#define deb_rc(args...) dprintk(dvb_usb_au6610_debug,0x01,args) +#define deb_info(args...) dprintk(dvb_usb_au6610_debug, 0x01, args) #define AU6610_REQ_I2C_WRITE 0x14 #define AU6610_REQ_I2C_READ 0x13 diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c index 720fcd1c3c1d..0286156704f2 100644 --- a/drivers/media/dvb/dvb-usb/cxusb.c +++ b/drivers/media/dvb/dvb-usb/cxusb.c @@ -24,6 +24,7 @@ * see Documentation/dvb/README.dvb-usb for more information */ #include <media/tuner.h> +#include <linux/vmalloc.h> #include "cxusb.h" @@ -700,12 +701,26 @@ static int bluebird_patch_dvico_firmware_download(struct usb_device *udev, if (fw->data[idoff] == (USB_VID_DVICO & 0xff) && fw->data[idoff + 1] == USB_VID_DVICO >> 8) { - fw->data[idoff + 2] = + struct firmware new_fw; + u8 *new_fw_data = vmalloc(fw->size); + int ret; + + if (!new_fw_data) + return -ENOMEM; + + memcpy(new_fw_data, fw->data, fw->size); + new_fw.size = fw->size; + new_fw.data = new_fw_data; + + new_fw_data[idoff + 2] = le16_to_cpu(udev->descriptor.idProduct) + 1; - fw->data[idoff + 3] = + new_fw_data[idoff + 3] = le16_to_cpu(udev->descriptor.idProduct) >> 8; - return usb_cypress_load_firmware(udev, fw, CYPRESS_FX2); + ret = usb_cypress_load_firmware(udev, &new_fw, + CYPRESS_FX2); + vfree(new_fw_data); + return ret; } } diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h index 34245d1b7dd9..e6b43fb3a148 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h +++ b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h @@ -14,6 +14,7 @@ #define USB_VID_AFATECH 0x15a4 #define USB_VID_ALCOR_MICRO 0x058f #define USB_VID_ALINK 0x05e3 +#define USB_VID_AMT 0x1c73 #define USB_VID_ANCHOR 0x0547 #define USB_VID_ANSONIC 0x10b9 #define USB_VID_ANUBIS_ELECTRONIC 0x10fd @@ -57,6 +58,7 @@ #define USB_PID_AFATECH_AF9005 0x9020 #define USB_VID_ALINK_DTU 0xf170 #define USB_PID_ANSONIC_DVBT_USB 0x6000 +#define USB_PID_ANYSEE 0x861f #define USB_PID_AVERMEDIA_DVBT_USB_COLD 0x0001 #define USB_PID_AVERMEDIA_DVBT_USB_WARM 0x0002 #define USB_PID_AVERMEDIA_DVBT_USB2_COLD 0xa800 diff --git a/drivers/media/dvb/dvb-usb/gl861.c b/drivers/media/dvb/dvb-usb/gl861.c index 0a8ac64a4e33..6f596ed41761 100644 --- a/drivers/media/dvb/dvb-usb/gl861.c +++ b/drivers/media/dvb/dvb-usb/gl861.c @@ -1,8 +1,8 @@ /* DVB USB compliant linux driver for GL861 USB2.0 devices. * * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation, version 2. + * under the terms of the GNU General Public License as published by the + * Free Software Foundation, version 2. * * see Documentation/dvb/README.dvb-usb for more information */ @@ -13,9 +13,9 @@ /* debug */ static int dvb_usb_gl861_debug; -module_param_named(debug,dvb_usb_gl861_debug, int, 0644); -MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); - +module_param_named(debug, dvb_usb_gl861_debug, int, 0644); +MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." + DVB_USB_DEBUG_STATUS); DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr, @@ -47,6 +47,8 @@ static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr, return -EINVAL; } + msleep(1); /* avoid I2C errors */ + return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type, value, index, rbuf, rlen, 2000); } @@ -68,7 +70,7 @@ static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], /* write/read request */ if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf, - msg[i].len, msg[i+1].buf, msg[i+1].len) < 0) + msg[i].len, msg[i+1].buf, msg[i+1].len) < 0) break; i++; } else @@ -92,16 +94,6 @@ static struct i2c_algorithm gl861_i2c_algo = { }; /* Callbacks for DVB USB */ -static int gl861_identify_state(struct usb_device *udev, - struct dvb_usb_device_properties *props, - struct dvb_usb_device_description **desc, - int *cold) -{ - *cold = 0; - - return 0; -} - static struct zl10353_config gl861_zl10353_config = { .demod_address = 0x0f, .no_tuner = 1, @@ -110,12 +102,13 @@ static struct zl10353_config gl861_zl10353_config = { static int gl861_frontend_attach(struct dvb_usb_adapter *adap) { - if ((adap->fe = dvb_attach(zl10353_attach, &gl861_zl10353_config, - &adap->dev->i2c_adap)) != NULL) { - return 0; - } - return -EIO; + adap->fe = dvb_attach(zl10353_attach, &gl861_zl10353_config, + &adap->dev->i2c_adap); + if (adap->fe == NULL) + return -EIO; + + return 0; } static struct qt1010_config gl861_qt1010_config = { @@ -164,7 +157,7 @@ static struct usb_device_id gl861_table [] = { { USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU) }, { } /* Terminating entry */ }; -MODULE_DEVICE_TABLE (usb, gl861_table); +MODULE_DEVICE_TABLE(usb, gl861_table); static struct dvb_usb_device_properties gl861_properties = { .caps = DVB_USB_IS_AN_I2C_ADAPTER, @@ -172,7 +165,6 @@ static struct dvb_usb_device_properties gl861_properties = { .size_of_priv = 0, - .identify_state = gl861_identify_state, .num_adapters = 1, .adapter = {{ @@ -189,18 +181,20 @@ static struct dvb_usb_device_properties gl861_properties = { } } }, - }}, + } }, .i2c_algo = &gl861_i2c_algo, .num_device_descs = 2, .devices = { - { "MSI Mega Sky 55801 DVB-T USB2.0", - { &gl861_table[0], NULL }, - { NULL }, + { + .name = "MSI Mega Sky 55801 DVB-T USB2.0", + .cold_ids = { NULL }, + .warm_ids = { &gl861_table[0], NULL }, }, - { "A-LINK DTU DVB-T USB2.0", - { &gl861_table[1], NULL }, - { NULL }, + { + .name = "A-LINK DTU DVB-T USB2.0", + .cold_ids = { NULL }, + .warm_ids = { &gl861_table[1], NULL }, }, } }; @@ -217,12 +211,11 @@ static int __init gl861_module_init(void) { int ret; - if ((ret = usb_register(&gl861_driver))) { + ret = usb_register(&gl861_driver); + if (ret) err("usb_register failed. Error number %d", ret); - return ret; - } - return 0; + return ret; } static void __exit gl861_module_exit(void) @@ -231,8 +224,8 @@ static void __exit gl861_module_exit(void) usb_deregister(&gl861_driver); } -module_init (gl861_module_init); -module_exit (gl861_module_exit); +module_init(gl861_module_init); +module_exit(gl861_module_exit); MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>"); MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861"); diff --git a/drivers/media/dvb/dvb-usb/gl861.h b/drivers/media/dvb/dvb-usb/gl861.h index 72a51afd5ee3..c54855e2c233 100644 --- a/drivers/media/dvb/dvb-usb/gl861.h +++ b/drivers/media/dvb/dvb-usb/gl861.h @@ -4,7 +4,7 @@ #define DVB_USB_LOG_PREFIX "gl861" #include "dvb-usb.h" -#define deb_rc(args...) dprintk(dvb_usb_gl861_debug,0x01,args) +#define deb_rc(args...) dprintk(dvb_usb_gl861_debug, 0x01, args) #define GL861_WRITE 0x40 #define GL861_READ 0xc0 diff --git a/drivers/media/dvb/dvb-usb/gp8psk.c b/drivers/media/dvb/dvb-usb/gp8psk.c index 2653120673b7..d965a923f391 100644 --- a/drivers/media/dvb/dvb-usb/gp8psk.c +++ b/drivers/media/dvb/dvb-usb/gp8psk.c @@ -86,7 +86,8 @@ static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d) { int ret; const struct firmware *fw = NULL; - u8 *ptr, *buf; + const u8 *ptr; + u8 *buf; if ((ret = request_firmware(&fw, bcm4500_firmware, &d->udev->dev)) != 0) { err("did not find the bcm4500 firmware file. (%s) " diff --git a/drivers/media/dvb/dvb-usb/umt-010.c b/drivers/media/dvb/dvb-usb/umt-010.c index 9e7653bb3b66..118aab1a3e54 100644 --- a/drivers/media/dvb/dvb-usb/umt-010.c +++ b/drivers/media/dvb/dvb-usb/umt-010.c @@ -107,7 +107,7 @@ static struct dvb_usb_device_properties umt_properties = { /* parameter for the MPEG2-data transfer */ .stream = { .type = USB_BULK, - .count = 20, + .count = MAX_NO_URBS_FOR_DATA_STREAM, .endpoint = 0x06, .u = { .bulk = { diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig index c20553c4da1f..fa7f0c563770 100644 --- a/drivers/media/dvb/frontends/Kconfig +++ b/drivers/media/dvb/frontends/Kconfig @@ -135,6 +135,20 @@ config DVB_CX22702 help A DVB-T tuner module. Say Y when you want to support this frontend. +config DVB_DRX397XD + tristate "Micronas DRX3975D/DRX3977D based" + depends on DVB_CORE && I2C && HOTPLUG + default m if DVB_FE_CUSTOMISE + select FW_LOADER + help + A DVB-T tuner module. Say Y when you want to support this frontend. + + TODO: + This driver needs external firmware. Please use the command + "<kerneldir>/Documentation/dvb/get_dvb_firmware drx397xD" to + download/extract them, and then copy them to /usr/lib/hotplug/firmware + or /lib/firmware (depending on configuration of firmware hotplug). + config DVB_L64781 tristate "LSI L64781" depends on DVB_CORE && I2C diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index a89dc0fc4c6f..028da55611c0 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_DVB_NXT6000) += nxt6000.o obj-$(CONFIG_DVB_MT352) += mt352.o obj-$(CONFIG_DVB_ZL10353) += zl10353.o obj-$(CONFIG_DVB_CX22702) += cx22702.o +obj-$(CONFIG_DVB_DRX397XD) += drx397xD.o obj-$(CONFIG_DVB_TDA10021) += tda10021.o obj-$(CONFIG_DVB_TDA10023) += tda10023.o obj-$(CONFIG_DVB_STV0297) += stv0297.o diff --git a/drivers/media/dvb/frontends/au8522.c b/drivers/media/dvb/frontends/au8522.c index 084a280c2d7f..f7b71657f0f6 100644 --- a/drivers/media/dvb/frontends/au8522.c +++ b/drivers/media/dvb/frontends/au8522.c @@ -26,7 +26,6 @@ #include <linux/slab.h> #include <linux/delay.h> #include "dvb_frontend.h" -#include "dvb-pll.h" #include "au8522.h" struct au8522_state { @@ -463,10 +462,13 @@ static int au8522_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p) { struct au8522_state *state = fe->demodulator_priv; + int ret = -EINVAL; dprintk("%s(frequency=%d)\n", __func__, p->frequency); - state->current_frequency = p->frequency; + if ((state->current_frequency == p->frequency) && + (state->current_modulation == p->u.vsb.modulation)) + return 0; au8522_enable_modulation(fe, p->u.vsb.modulation); @@ -476,11 +478,16 @@ static int au8522_set_frontend(struct dvb_frontend *fe, if (fe->ops.tuner_ops.set_params) { if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); - fe->ops.tuner_ops.set_params(fe, p); + ret = fe->ops.tuner_ops.set_params(fe, p); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); } + if (ret < 0) + return ret; + + state->current_frequency = p->frequency; + return 0; } @@ -498,6 +505,16 @@ static int au8522_init(struct dvb_frontend *fe) return 0; } +static int au8522_sleep(struct dvb_frontend *fe) +{ + struct au8522_state *state = fe->demodulator_priv; + dprintk("%s()\n", __func__); + + state->current_frequency = 0; + + return 0; +} + static int au8522_read_status(struct dvb_frontend *fe, fe_status_t *status) { struct au8522_state *state = fe->demodulator_priv; @@ -509,10 +526,8 @@ static int au8522_read_status(struct dvb_frontend *fe, fe_status_t *status) if (state->current_modulation == VSB_8) { dprintk("%s() Checking VSB_8\n", __func__); reg = au8522_readreg(state, 0x4088); - if (reg & 0x01) - *status |= FE_HAS_VITERBI; - if (reg & 0x02) - *status |= FE_HAS_LOCK | FE_HAS_SYNC; + if ((reg & 0x03) == 0x03) + *status |= FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI; } else { dprintk("%s() Checking QAM\n", __func__); reg = au8522_readreg(state, 0x4541); @@ -672,6 +687,7 @@ static struct dvb_frontend_ops au8522_ops = { }, .init = au8522_init, + .sleep = au8522_sleep, .i2c_gate_ctrl = au8522_i2c_gate_ctrl, .set_frontend = au8522_set_frontend, .get_frontend = au8522_get_frontend, diff --git a/drivers/media/dvb/frontends/bcm3510.c b/drivers/media/dvb/frontends/bcm3510.c index d268e65e777d..cf5e576dfdcf 100644 --- a/drivers/media/dvb/frontends/bcm3510.c +++ b/drivers/media/dvb/frontends/bcm3510.c @@ -590,7 +590,8 @@ static void bcm3510_release(struct dvb_frontend* fe) */ #define BCM3510_DEFAULT_FIRMWARE "dvb-fe-bcm3510-01.fw" -static int bcm3510_write_ram(struct bcm3510_state *st, u16 addr, u8 *b, u16 len) +static int bcm3510_write_ram(struct bcm3510_state *st, u16 addr, const u8 *b, + u16 len) { int ret = 0,i; bcm3510_register_value vH, vL,vD; @@ -614,7 +615,7 @@ static int bcm3510_download_firmware(struct dvb_frontend* fe) struct bcm3510_state* st = fe->demodulator_priv; const struct firmware *fw; u16 addr,len; - u8 *b; + const u8 *b; int ret,i; deb_info("requesting firmware\n"); diff --git a/drivers/media/dvb/frontends/drx397xD.c b/drivers/media/dvb/frontends/drx397xD.c new file mode 100644 index 000000000000..d71cce93d08e --- /dev/null +++ b/drivers/media/dvb/frontends/drx397xD.c @@ -0,0 +1,1504 @@ +/* + * Driver for Micronas drx397xD demodulator + * + * Copyright (C) 2007 Henk Vergonet <Henk.Vergonet@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; If not, see <http://www.gnu.org/licenses/>. + */ + +#define DEBUG /* uncomment if you want debugging output */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/string.h> +#include <linux/firmware.h> +#include <asm/div64.h> + +#include "dvb_frontend.h" +#include "drx397xD.h" + +static const char mod_name[] = "drx397xD"; + +#define MAX_CLOCK_DRIFT 200 /* maximal 200 PPM allowed */ + +#define F_SET_0D0h 1 +#define F_SET_0D4h 2 + +typedef enum fw_ix { +#define _FW_ENTRY(a, b) b +#include "drx397xD_fw.h" +} fw_ix_t; + +/* chip specifics */ +struct drx397xD_state { + struct i2c_adapter *i2c; + struct dvb_frontend frontend; + struct drx397xD_config config; + fw_ix_t chip_rev; + int flags; + u32 bandwidth_parm; /* internal bandwidth conversions */ + u32 f_osc; /* w90: actual osc frequency [Hz] */ +}; + +/******************************************************************************* + * Firmware + ******************************************************************************/ + +static const char *blob_name[] = { +#define _BLOB_ENTRY(a, b) a +#include "drx397xD_fw.h" +}; + +typedef enum blob_ix { +#define _BLOB_ENTRY(a, b) b +#include "drx397xD_fw.h" +} blob_ix_t; + +static struct { + const char *name; + const struct firmware *file; + rwlock_t lock; + int refcnt; + u8 *data[ARRAY_SIZE(blob_name)]; +} fw[] = { +#define _FW_ENTRY(a, b) { \ + .name = a, \ + .file = 0, \ + .lock = RW_LOCK_UNLOCKED, \ + .refcnt = 0, \ + .data = { } } +#include "drx397xD_fw.h" +}; + +/* use only with writer lock aquired */ +static void _drx_release_fw(struct drx397xD_state *s, fw_ix_t ix) +{ + memset(&fw[ix].data[0], 0, sizeof(fw[0].data)); + if (fw[ix].file) + release_firmware(fw[ix].file); +} + +static void drx_release_fw(struct drx397xD_state *s) +{ + fw_ix_t ix = s->chip_rev; + + pr_debug("%s\n", __FUNCTION__); + + write_lock(&fw[ix].lock); + if (fw[ix].refcnt) { + fw[ix].refcnt--; + if (fw[ix].refcnt == 0) + _drx_release_fw(s, ix); + } + write_unlock(&fw[ix].lock); +} + +static int drx_load_fw(struct drx397xD_state *s, fw_ix_t ix) +{ + u8 *data; + size_t size, len; + int i = 0, j, rc = -EINVAL; + + pr_debug("%s\n", __FUNCTION__); + + if (ix < 0 || ix >= ARRAY_SIZE(fw)) + return -EINVAL; + s->chip_rev = ix; + + write_lock(&fw[ix].lock); + if (fw[ix].file) { + rc = 0; + goto exit_ok; + } + memset(&fw[ix].data[0], 0, sizeof(fw[0].data)); + + if (request_firmware(&fw[ix].file, fw[ix].name, &s->i2c->dev) != 0) { + printk(KERN_ERR "%s: Firmware \"%s\" not available\n", + mod_name, fw[ix].name); + rc = -ENOENT; + goto exit_err; + } + + if (!fw[ix].file->data || fw[ix].file->size < 10) + goto exit_corrupt; + + data = fw[ix].file->data; + size = fw[ix].file->size; + + if (data[i++] != 2) /* check firmware version */ + goto exit_corrupt; + + do { + switch (data[i++]) { + case 0x00: /* bytecode */ + if (i >= size) + break; + i += data[i]; + case 0x01: /* reset */ + case 0x02: /* sleep */ + i++; + break; + case 0xfe: /* name */ + len = strnlen(&data[i], size - i); + if (i + len + 1 >= size) + goto exit_corrupt; + if (data[i + len + 1] != 0) + goto exit_corrupt; + for (j = 0; j < ARRAY_SIZE(blob_name); j++) { + if (strcmp(blob_name[j], &data[i]) == 0) { + fw[ix].data[j] = &data[i + len + 1]; + pr_debug("Loading %s\n", blob_name[j]); + } + } + i += len + 1; + break; + case 0xff: /* file terminator */ + if (i == size) { + rc = 0; + goto exit_ok; + } + default: + goto exit_corrupt; + } + } while (i < size); + exit_corrupt: + printk(KERN_ERR "%s: Firmware is corrupt\n", mod_name); + exit_err: + _drx_release_fw(s, ix); + fw[ix].refcnt--; + exit_ok: + fw[ix].refcnt++; + write_unlock(&fw[ix].lock); + return rc; +} + +/******************************************************************************* + * i2c bus IO + ******************************************************************************/ + +static int write_fw(struct drx397xD_state *s, blob_ix_t ix) +{ + struct i2c_msg msg = {.addr = s->config.demod_address,.flags = 0 }; + u8 *data; + int len, rc = 0, i = 0; + + if (ix < 0 || ix >= ARRAY_SIZE(blob_name)) { + pr_debug("%s drx_fw_ix_t out of range\n", __FUNCTION__); + return -EINVAL; + } + pr_debug("%s %s\n", __FUNCTION__, blob_name[ix]); + + read_lock(&fw[s->chip_rev].lock); + data = fw[s->chip_rev].data[ix]; + if (!data) { + rc = -EINVAL; + goto exit_rc; + } + + for (;;) { + switch (data[i++]) { + case 0: /* bytecode */ + len = data[i++]; + msg.len = len; + msg.buf = &data[i]; + if (i2c_transfer(s->i2c, &msg, 1) != 1) { + rc = -EIO; + goto exit_rc; + } + i += len; + break; + case 1: /* reset */ + case 2: /* sleep */ + i++; + break; + default: + goto exit_rc; + } + } + exit_rc: + read_unlock(&fw[s->chip_rev].lock); + return 0; +} + +/* Function is not endian safe, use the RD16 wrapper below */ +static int _read16(struct drx397xD_state *s, u32 i2c_adr) +{ + int rc; + u8 a[4]; + u16 v; + struct i2c_msg msg[2] = { + { + .addr = s->config.demod_address, + .flags = 0, + .buf = a, + .len = sizeof(a) + } + , { + .addr = s->config.demod_address, + .flags = I2C_M_RD, + .buf = (u8 *) & v, + .len = sizeof(v) + } + }; + + *(u32 *) a = i2c_adr; + + rc = i2c_transfer(s->i2c, msg, 2); + if (rc != 2) + return -EIO; + + return le16_to_cpu(v); +} + +/* Function is not endian safe, use the WR16.. wrappers below */ +static int _write16(struct drx397xD_state *s, u32 i2c_adr, u16 val) +{ + u8 a[6]; + int rc; + struct i2c_msg msg = { + .addr = s->config.demod_address, + .flags = 0, + .buf = a, + .len = sizeof(a) + }; + + *(u32 *) a = i2c_adr; + *(u16 *) & a[4] = val; + + rc = i2c_transfer(s->i2c, &msg, 1); + if (rc != 1) + return -EIO; + return 0; +} + +#define WR16(ss,adr, val) \ + _write16(ss, I2C_ADR_C0(adr), cpu_to_le16(val)) +#define WR16_E0(ss,adr, val) \ + _write16(ss, I2C_ADR_E0(adr), cpu_to_le16(val)) +#define RD16(ss,adr) \ + _read16(ss, I2C_ADR_C0(adr)) + +#define EXIT_RC( cmd ) if ( (rc = (cmd)) < 0) goto exit_rc + +/******************************************************************************* + * Tuner callback + ******************************************************************************/ + +static int PLL_Set(struct drx397xD_state *s, + struct dvb_frontend_parameters *fep, int *df_tuner) +{ + struct dvb_frontend *fe = &s->frontend; + u32 f_tuner, f = fep->frequency; + int rc; + + pr_debug("%s\n", __FUNCTION__); + + if ((f > s->frontend.ops.tuner_ops.info.frequency_max) || + (f < s->frontend.ops.tuner_ops.info.frequency_min)) + return -EINVAL; + + *df_tuner = 0; + if (!s->frontend.ops.tuner_ops.set_params || + !s->frontend.ops.tuner_ops.get_frequency) + return -ENOSYS; + + rc = s->frontend.ops.tuner_ops.set_params(fe, fep); + if (rc < 0) + return rc; + + rc = s->frontend.ops.tuner_ops.get_frequency(fe, &f_tuner); + if (rc < 0) + return rc; + + *df_tuner = f_tuner - f; + pr_debug("%s requested %d [Hz] tuner %d [Hz]\n", __FUNCTION__, f, + f_tuner); + + return 0; +} + +/******************************************************************************* + * Demodulator helper functions + ******************************************************************************/ + +static int SC_WaitForReady(struct drx397xD_state *s) +{ + int cnt = 1000; + int rc; + + pr_debug("%s\n", __FUNCTION__); + + while (cnt--) { + rc = RD16(s, 0x820043); + if (rc == 0) + return 0; + } + return -1; +} + +static int SC_SendCommand(struct drx397xD_state *s, int cmd) +{ + int rc; + + pr_debug("%s\n", __FUNCTION__); + + WR16(s, 0x820043, cmd); + SC_WaitForReady(s); + rc = RD16(s, 0x820042); + if ((rc & 0xffff) == 0xffff) + return -1; + return 0; +} + +static int HI_Command(struct drx397xD_state *s, u16 cmd) +{ + int rc, cnt = 1000; + + pr_debug("%s\n", __FUNCTION__); + + rc = WR16(s, 0x420032, cmd); + if (rc < 0) + return rc; + + do { + rc = RD16(s, 0x420032); + if (rc == 0) { + rc = RD16(s, 0x420031); + return rc; + } + if (rc < 0) + return rc; + } while (--cnt); + return rc; +} + +static int HI_CfgCommand(struct drx397xD_state *s) +{ + + pr_debug("%s\n", __FUNCTION__); + + WR16(s, 0x420033, 0x3973); + WR16(s, 0x420034, s->config.w50); // code 4, log 4 + WR16(s, 0x420035, s->config.w52); // code 15, log 9 + WR16(s, 0x420036, s->config.demod_address << 1); + WR16(s, 0x420037, s->config.w56); // code (set_i2c ?? initX 1 ), log 1 +// WR16(s, 0x420033, 0x3973); + if ((s->config.w56 & 8) == 0) + return HI_Command(s, 3); + return WR16(s, 0x420032, 0x3); +} + +static const u8 fastIncrDecLUT_15273[] = { + 0x0e, 0x0f, 0x0f, 0x10, 0x11, 0x12, 0x12, 0x13, 0x14, + 0x15, 0x16, 0x17, 0x18, 0x1a, 0x1b, 0x1c, 0x1d, 0x1f +}; + +static const u8 slowIncrDecLUT_15272[] = { + 3, 4, 4, 5, 6 +}; + +static int SetCfgIfAgc(struct drx397xD_state *s, struct drx397xD_CfgIfAgc *agc) +{ + u16 w06 = agc->w06; + u16 w08 = agc->w08; + u16 w0A = agc->w0A; + u16 w0C = agc->w0C; + int quot, rem, i, rc = -EINVAL; + + pr_debug("%s\n", __FUNCTION__); + + if (agc->w04 > 0x3ff) + goto exit_rc; + + if (agc->d00 == 1) { + EXIT_RC(RD16(s, 0x0c20010)); + rc &= ~0x10; + EXIT_RC(WR16(s, 0x0c20010, rc)); + return WR16(s, 0x0c20030, agc->w04 & 0x7ff); + } + + if (agc->d00 != 0) + goto exit_rc; + if (w0A < w08) + goto exit_rc; + if (w0A > 0x3ff) + goto exit_rc; + if (w0C > 0x3ff) + goto exit_rc; + if (w06 > 0x3ff) + goto exit_rc; + + EXIT_RC(RD16(s, 0x0c20010)); + rc |= 0x10; + EXIT_RC(WR16(s, 0x0c20010, rc)); + + EXIT_RC(WR16(s, 0x0c20025, (w06 >> 1) & 0x1ff)); + EXIT_RC(WR16(s, 0x0c20031, (w0A - w08) >> 1)); + EXIT_RC(WR16(s, 0x0c20032, ((w0A + w08) >> 1) - 0x1ff)); + + quot = w0C / 113; + rem = w0C % 113; + if (quot <= 8) { + quot = 8 - quot; + } else { + quot = 0; + rem += 113; + } + + EXIT_RC(WR16(s, 0x0c20024, quot)); + + i = fastIncrDecLUT_15273[rem / 8]; + EXIT_RC(WR16(s, 0x0c2002d, i)); + EXIT_RC(WR16(s, 0x0c2002e, i)); + + i = slowIncrDecLUT_15272[rem / 28]; + EXIT_RC(WR16(s, 0x0c2002b, i)); + rc = WR16(s, 0x0c2002c, i); + exit_rc: + return rc; +} + +static int SetCfgRfAgc(struct drx397xD_state *s, struct drx397xD_CfgRfAgc *agc) +{ + u16 w04 = agc->w04; + u16 w06 = agc->w06; + int rc = -1; + + pr_debug("%s %d 0x%x 0x%x\n", __FUNCTION__, agc->d00, w04, w06); + + if (w04 > 0x3ff) + goto exit_rc; + + switch (agc->d00) { + case 1: + if (w04 == 0x3ff) + w04 = 0x400; + + EXIT_RC(WR16(s, 0x0c20036, w04)); + s->config.w9C &= ~2; + EXIT_RC(WR16(s, 0x0c20015, s->config.w9C)); + EXIT_RC(RD16(s, 0x0c20010)); + rc &= 0xbfdf; + EXIT_RC(WR16(s, 0x0c20010, rc)); + EXIT_RC(RD16(s, 0x0c20013)); + rc &= ~2; + break; + case 0: + // loc_8000659 + s->config.w9C &= ~2; + EXIT_RC(WR16(s, 0x0c20015, s->config.w9C)); + EXIT_RC(RD16(s, 0x0c20010)); + rc &= 0xbfdf; + rc |= 0x4000; + EXIT_RC(WR16(s, 0x0c20010, rc)); + EXIT_RC(WR16(s, 0x0c20051, (w06 >> 4) & 0x3f)); + EXIT_RC(RD16(s, 0x0c20013)); + rc &= ~2; + break; + default: + s->config.w9C |= 2; + EXIT_RC(WR16(s, 0x0c20015, s->config.w9C)); + EXIT_RC(RD16(s, 0x0c20010)); + rc &= 0xbfdf; + EXIT_RC(WR16(s, 0x0c20010, rc)); + + EXIT_RC(WR16(s, 0x0c20036, 0)); + + EXIT_RC(RD16(s, 0x0c20013)); + rc |= 2; + } + rc = WR16(s, 0x0c20013, rc); + exit_rc: + return rc; +} + +static int GetLockStatus(struct drx397xD_state *s, int *lockstat) +{ + int rc; + + *lockstat = 0; + + rc = RD16(s, 0x082004b); + if (rc < 0) + return rc; + + if (s->config.d60 != 2) + return 0; + + if ((rc & 7) == 7) + *lockstat |= 1; + if ((rc & 3) == 3) + *lockstat |= 2; + if (rc & 1) + *lockstat |= 4; + return 0; +} + +static int CorrectSysClockDeviation(struct drx397xD_state *s) +{ + int rc = -EINVAL; + int lockstat; + u32 clk, clk_limit; + + pr_debug("%s\n", __FUNCTION__); + + if (s->config.d5C == 0) { + EXIT_RC(WR16(s, 0x08200e8, 0x010)); + EXIT_RC(WR16(s, 0x08200e9, 0x113)); + s->config.d5C = 1; + return rc; + } + if (s->config.d5C != 1) + goto exit_rc; + + rc = RD16(s, 0x0820048); + + rc = GetLockStatus(s, &lockstat); + if (rc < 0) + goto exit_rc; + if ((lockstat & 1) == 0) + goto exit_rc; + + EXIT_RC(WR16(s, 0x0420033, 0x200)); + EXIT_RC(WR16(s, 0x0420034, 0xc5)); + EXIT_RC(WR16(s, 0x0420035, 0x10)); + EXIT_RC(WR16(s, 0x0420036, 0x1)); + EXIT_RC(WR16(s, 0x0420037, 0xa)); + EXIT_RC(HI_Command(s, 6)); + EXIT_RC(RD16(s, 0x0420040)); + clk = rc; + EXIT_RC(RD16(s, 0x0420041)); + clk |= rc << 16; + + if (clk <= 0x26ffff) + goto exit_rc; + if (clk > 0x610000) + goto exit_rc; + + if (!s->bandwidth_parm) + return -EINVAL; + + /* round & convert to Hz */ + clk = ((u64) (clk + 0x800000) * s->bandwidth_parm + (1 << 20)) >> 21; + clk_limit = s->config.f_osc * MAX_CLOCK_DRIFT / 1000; + + if (clk - s->config.f_osc * 1000 + clk_limit <= 2 * clk_limit) { + s->f_osc = clk; + pr_debug("%s: osc %d %d [Hz]\n", __FUNCTION__, + s->config.f_osc * 1000, clk - s->config.f_osc * 1000); + } + rc = WR16(s, 0x08200e8, 0); + exit_rc: + return rc; +} + +static int ConfigureMPEGOutput(struct drx397xD_state *s, int type) +{ + int rc, si, bp; + + pr_debug("%s\n", __FUNCTION__); + + si = s->config.wA0; + if (s->config.w98 == 0) { + si |= 1; + bp = 0; + } else { + si &= ~1; + bp = 0x200; + } + if (s->config.w9A == 0) { + si |= 0x80; + } else { + si &= ~0x80; + } + + EXIT_RC(WR16(s, 0x2150045, 0)); + EXIT_RC(WR16(s, 0x2150010, si)); + EXIT_RC(WR16(s, 0x2150011, bp)); + rc = WR16(s, 0x2150012, (type == 0 ? 0xfff : 0)); + exit_rc: + return rc; +} + +static int drx_tune(struct drx397xD_state *s, + struct dvb_frontend_parameters *fep) +{ + u16 v22 = 0; + u16 v1C = 0; + u16 v1A = 0; + u16 v18 = 0; + u32 edi = 0, ebx = 0, ebp = 0, edx = 0; + u16 v20 = 0, v1E = 0, v16 = 0, v14 = 0, v12 = 0, v10 = 0, v0E = 0; + + int rc, df_tuner; + int a, b, c, d; + pr_debug("%s %d\n", __FUNCTION__, s->config.d60); + + if (s->config.d60 != 2) + goto set_tuner; + rc = CorrectSysClockDeviation(s); + if (rc < 0) + goto set_tuner; + + s->config.d60 = 1; + rc = ConfigureMPEGOutput(s, 0); + if (rc < 0) + goto set_tuner; + set_tuner: + + rc = PLL_Set(s, fep, &df_tuner); + if (rc < 0) { + printk(KERN_ERR "Error in pll_set\n"); + goto exit_rc; + } + msleep(200); + + a = rc = RD16(s, 0x2150016); + if (rc < 0) + goto exit_rc; + b = rc = RD16(s, 0x2150010); + if (rc < 0) + goto exit_rc; + c = rc = RD16(s, 0x2150034); + if (rc < 0) + goto exit_rc; + d = rc = RD16(s, 0x2150035); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x2150014, c); + rc = WR16(s, 0x2150015, d); + rc = WR16(s, 0x2150010, 0); + rc = WR16(s, 0x2150000, 2); + rc = WR16(s, 0x2150036, 0x0fff); + rc = WR16(s, 0x2150016, a); + + rc = WR16(s, 0x2150010, 2); + rc = WR16(s, 0x2150007, 0); + rc = WR16(s, 0x2150000, 1); + rc = WR16(s, 0x2110000, 0); + rc = WR16(s, 0x0800000, 0); + rc = WR16(s, 0x2800000, 0); + rc = WR16(s, 0x2110010, 0x664); + + rc = write_fw(s, DRXD_ResetECRAM); + rc = WR16(s, 0x2110000, 1); + + rc = write_fw(s, DRXD_InitSC); + if (rc < 0) + goto exit_rc; + + rc = SetCfgIfAgc(s, &s->config.ifagc); + if (rc < 0) + goto exit_rc; + + rc = SetCfgRfAgc(s, &s->config.rfagc); + if (rc < 0) + goto exit_rc; + + if (fep->u.ofdm.transmission_mode != TRANSMISSION_MODE_2K) + v22 = 1; + switch (fep->u.ofdm.transmission_mode) { + case TRANSMISSION_MODE_8K: + edi = 1; + if (s->chip_rev == DRXD_FW_B1) + break; + + rc = WR16(s, 0x2010010, 0); + if (rc < 0) + break; + v1C = 0x63; + v1A = 0x53; + v18 = 0x43; + break; + default: + edi = 0; + if (s->chip_rev == DRXD_FW_B1) + break; + + rc = WR16(s, 0x2010010, 1); + if (rc < 0) + break; + + v1C = 0x61; + v1A = 0x47; + v18 = 0x41; + } + + switch (fep->u.ofdm.guard_interval) { + case GUARD_INTERVAL_1_4: + edi |= 0x0c; + break; + case GUARD_INTERVAL_1_8: + edi |= 0x08; + break; + case GUARD_INTERVAL_1_16: + edi |= 0x04; + break; + case GUARD_INTERVAL_1_32: + break; + default: + v22 |= 2; + } + + ebx = 0; + ebp = 0; + v20 = 0; + v1E = 0; + v16 = 0; + v14 = 0; + v12 = 0; + v10 = 0; + v0E = 0; + + switch (fep->u.ofdm.hierarchy_information) { + case HIERARCHY_1: + edi |= 0x40; + if (s->chip_rev == DRXD_FW_B1) + break; + rc = WR16(s, 0x1c10047, 1); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x2010012, 1); + if (rc < 0) + goto exit_rc; + ebx = 0x19f; + ebp = 0x1fb; + v20 = 0x0c0; + v1E = 0x195; + v16 = 0x1d6; + v14 = 0x1ef; + v12 = 4; + v10 = 5; + v0E = 5; + break; + case HIERARCHY_2: + edi |= 0x80; + if (s->chip_rev == DRXD_FW_B1) + break; + rc = WR16(s, 0x1c10047, 2); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x2010012, 2); + if (rc < 0) + goto exit_rc; + ebx = 0x08f; + ebp = 0x12f; + v20 = 0x0c0; + v1E = 0x11e; + v16 = 0x1d6; + v14 = 0x15e; + v12 = 4; + v10 = 5; + v0E = 5; + break; + case HIERARCHY_4: + edi |= 0xc0; + if (s->chip_rev == DRXD_FW_B1) + break; + rc = WR16(s, 0x1c10047, 3); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x2010012, 3); + if (rc < 0) + goto exit_rc; + ebx = 0x14d; + ebp = 0x197; + v20 = 0x0c0; + v1E = 0x1ce; + v16 = 0x1d6; + v14 = 0x11a; + v12 = 4; + v10 = 6; + v0E = 5; + break; + default: + v22 |= 8; + if (s->chip_rev == DRXD_FW_B1) + break; + rc = WR16(s, 0x1c10047, 0); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x2010012, 0); + if (rc < 0) + goto exit_rc; + // QPSK QAM16 QAM64 + ebx = 0x19f; // 62 + ebp = 0x1fb; // 15 + v20 = 0x16a; // 62 + v1E = 0x195; // 62 + v16 = 0x1bb; // 15 + v14 = 0x1ef; // 15 + v12 = 5; // 16 + v10 = 5; // 16 + v0E = 5; // 16 + } + + switch (fep->u.ofdm.constellation) { + default: + v22 |= 4; + case QPSK: + if (s->chip_rev == DRXD_FW_B1) + break; + + rc = WR16(s, 0x1c10046, 0); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x2010011, 0); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x201001a, 0x10); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x201001b, 0); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x201001c, 0); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c10062, v20); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c1002a, v1C); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c10015, v16); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c10016, v12); + if (rc < 0) + goto exit_rc; + break; + case QAM_16: + edi |= 0x10; + if (s->chip_rev == DRXD_FW_B1) + break; + + rc = WR16(s, 0x1c10046, 1); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x2010011, 1); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x201001a, 0x10); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x201001b, 4); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x201001c, 0); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c10062, v1E); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c1002a, v1A); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c10015, v14); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c10016, v10); + if (rc < 0) + goto exit_rc; + break; + case QAM_64: + edi |= 0x20; + rc = WR16(s, 0x1c10046, 2); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x2010011, 2); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x201001a, 0x20); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x201001b, 8); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x201001c, 2); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c10062, ebx); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c1002a, v18); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c10015, ebp); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x1c10016, v0E); + if (rc < 0) + goto exit_rc; + break; + } + + if (s->config.s20d24 == 1) { + rc = WR16(s, 0x2010013, 0); + } else { + rc = WR16(s, 0x2010013, 1); + edi |= 0x1000; + } + + switch (fep->u.ofdm.code_rate_HP) { + default: + v22 |= 0x10; + case FEC_1_2: + if (s->chip_rev == DRXD_FW_B1) + break; + rc = WR16(s, 0x2090011, 0); + break; + case FEC_2_3: + edi |= 0x200; + if (s->chip_rev == DRXD_FW_B1) + break; + rc = WR16(s, 0x2090011, 1); + break; + case FEC_3_4: + edi |= 0x400; + if (s->chip_rev == DRXD_FW_B1) + break; + rc = WR16(s, 0x2090011, 2); + break; + case FEC_5_6: /* 5 */ + edi |= 0x600; + if (s->chip_rev == DRXD_FW_B1) + break; + rc = WR16(s, 0x2090011, 3); + break; + case FEC_7_8: /* 7 */ + edi |= 0x800; + if (s->chip_rev == DRXD_FW_B1) + break; + rc = WR16(s, 0x2090011, 4); + break; + }; + if (rc < 0) + goto exit_rc; + + switch (fep->u.ofdm.bandwidth) { + default: + rc = -EINVAL; + goto exit_rc; + case BANDWIDTH_8_MHZ: /* 0 */ + case BANDWIDTH_AUTO: + rc = WR16(s, 0x0c2003f, 0x32); + s->bandwidth_parm = ebx = 0x8b8249; // 9142857 + edx = 0; + break; + case BANDWIDTH_7_MHZ: + rc = WR16(s, 0x0c2003f, 0x3b); + s->bandwidth_parm = ebx = 0x7a1200; // 8000000 + edx = 0x4807; + break; + case BANDWIDTH_6_MHZ: + rc = WR16(s, 0x0c2003f, 0x47); + s->bandwidth_parm = ebx = 0x68a1b6; // 6857142 + edx = 0x0f07; + break; + }; + + if (rc < 0) + goto exit_rc; + + rc = WR16(s, 0x08200ec, edx); + if (rc < 0) + goto exit_rc; + + rc = RD16(s, 0x0820050); + if (rc < 0) + goto exit_rc; + rc = WR16(s, 0x0820050, rc); + + { + /* Configure bandwidth specific factor */ + ebx = div64_u64(((u64) (s->f_osc) << 21) + (ebx >> 1), + (u64)ebx) - 0x800000; + EXIT_RC(WR16(s, 0x0c50010, ebx & 0xffff)); + EXIT_RC(WR16(s, 0x0c50011, ebx >> 16)); + + /* drx397xD oscillator calibration */ + ebx = div64_u64(((u64) (s->config.f_if + df_tuner) << 28) + + (s->f_osc >> 1), (u64)s->f_osc); + } + ebx &= 0xfffffff; + if (fep->inversion == INVERSION_ON) + ebx = 0x10000000 - ebx; + + EXIT_RC(WR16(s, 0x0c30010, ebx & 0xffff)); + EXIT_RC(WR16(s, 0x0c30011, ebx >> 16)); + + EXIT_RC(WR16(s, 0x0800000, 1)); + EXIT_RC(RD16(s, 0x0800000)); + + + EXIT_RC(SC_WaitForReady(s)); + EXIT_RC(WR16(s, 0x0820042, 0)); + EXIT_RC(WR16(s, 0x0820041, v22)); + EXIT_RC(WR16(s, 0x0820040, edi)); + EXIT_RC(SC_SendCommand(s, 3)); + + rc = RD16(s, 0x0800000); + + SC_WaitForReady(s); + WR16(s, 0x0820042, 0); + WR16(s, 0x0820041, 1); + WR16(s, 0x0820040, 1); + SC_SendCommand(s, 1); + +// rc = WR16(s, 0x2150000, 1); +// if (rc < 0) goto exit_rc; + + rc = WR16(s, 0x2150000, 2); + rc = WR16(s, 0x2150016, a); + rc = WR16(s, 0x2150010, 4); + rc = WR16(s, 0x2150036, 0); + rc = WR16(s, 0x2150000, 1); + s->config.d60 = 2; + exit_rc: + return rc; +} + +/******************************************************************************* + * DVB interface + ******************************************************************************/ + +static int drx397x_init(struct dvb_frontend *fe) +{ + struct drx397xD_state *s = fe->demodulator_priv; + int rc; + + pr_debug("%s\n", __FUNCTION__); + + s->config.rfagc.d00 = 2; /* 0x7c */ + s->config.rfagc.w04 = 0; + s->config.rfagc.w06 = 0x3ff; + + s->config.ifagc.d00 = 0; /* 0x68 */ + s->config.ifagc.w04 = 0; + s->config.ifagc.w06 = 140; + s->config.ifagc.w08 = 0; + s->config.ifagc.w0A = 0x3ff; + s->config.ifagc.w0C = 0x388; + + /* for signal strenght calculations */ + s->config.ss76 = 820; + s->config.ss78 = 2200; + s->config.ss7A = 150; + + /* HI_CfgCommand */ + s->config.w50 = 4; + s->config.w52 = 9; // 0xf; + + s->config.f_if = 42800000; /* d14: intermediate frequency [Hz] */ + s->config.f_osc = 48000; /* s66 : oscillator frequency [kHz] */ + s->config.w92 = 12000; // 20000; + + s->config.w9C = 0x000e; + s->config.w9E = 0x0000; + + /* ConfigureMPEGOutput params */ + s->config.wA0 = 4; + s->config.w98 = 1; // 0; + s->config.w9A = 1; + + /* get chip revision */ + rc = RD16(s, 0x2410019); + if (rc < 0) + return -ENODEV; + + if (rc == 0) { + printk(KERN_INFO "%s: chip revision A2\n", mod_name); + rc = drx_load_fw(s, DRXD_FW_A2); + } else { + + rc = (rc >> 12) - 3; + switch (rc) { + case 1: + s->flags |= F_SET_0D4h; + case 0: + case 4: + s->flags |= F_SET_0D0h; + break; + case 2: + case 5: + break; + case 3: + s->flags |= F_SET_0D4h; + break; + default: + return -ENODEV; + }; + printk(KERN_INFO "%s: chip revision B1.%d\n", mod_name, rc); + rc = drx_load_fw(s, DRXD_FW_B1); + } + if (rc < 0) + goto error; + + rc = WR16(s, 0x0420033, 0x3973); + if (rc < 0) + goto error; + + rc = HI_Command(s, 2); + + msleep(1); + + if (s->chip_rev == DRXD_FW_A2) { + rc = WR16(s, 0x043012d, 0x47F); + if (rc < 0) + goto error; + } + rc = WR16_E0(s, 0x0400000, 0); + if (rc < 0) + goto error; + + if (s->config.w92 > 20000 || s->config.w92 % 4000) { + printk(KERN_ERR "%s: invalid osc frequency\n", mod_name); + rc = -1; + goto error; + } + + rc = WR16(s, 0x2410010, 1); + if (rc < 0) + goto error; + rc = WR16(s, 0x2410011, 0x15); + if (rc < 0) + goto error; + rc = WR16(s, 0x2410012, s->config.w92 / 4000); + if (rc < 0) + goto error; +#ifdef ORIG_FW + rc = WR16(s, 0x2410015, 2); + if (rc < 0) + goto error; +#endif + rc = WR16(s, 0x2410017, 0x3973); + if (rc < 0) + goto error; + + s->f_osc = s->config.f_osc * 1000; /* initial estimator */ + + s->config.w56 = 1; + + rc = HI_CfgCommand(s); + if (rc < 0) + goto error; + + rc = write_fw(s, DRXD_InitAtomicRead); + if (rc < 0) + goto error; + + if (s->chip_rev == DRXD_FW_A2) { + rc = WR16(s, 0x2150013, 0); + if (rc < 0) + goto error; + } + + rc = WR16_E0(s, 0x0400002, 0); + if (rc < 0) + goto error; + rc = WR16(s, 0x0400002, 0); + if (rc < 0) + goto error; + + if (s->chip_rev == DRXD_FW_A2) { + rc = write_fw(s, DRXD_ResetCEFR); + if (rc < 0) + goto error; + } + rc = write_fw(s, DRXD_microcode); + if (rc < 0) + goto error; + + s->config.w9C = 0x0e; + if (s->flags & F_SET_0D0h) { + s->config.w9C = 0; + rc = RD16(s, 0x0c20010); + if (rc < 0) + goto write_DRXD_InitFE_1; + + rc &= ~0x1000; + rc = WR16(s, 0x0c20010, rc); + if (rc < 0) + goto write_DRXD_InitFE_1; + + rc = RD16(s, 0x0c20011); + if (rc < 0) + goto write_DRXD_InitFE_1; + + rc &= ~0x8; + rc = WR16(s, 0x0c20011, rc); + if (rc < 0) + goto write_DRXD_InitFE_1; + + rc = WR16(s, 0x0c20012, 1); + } + + write_DRXD_InitFE_1: + + rc = write_fw(s, DRXD_InitFE_1); + if (rc < 0) + goto error; + + rc = 1; + if (s->chip_rev == DRXD_FW_B1) { + if (s->flags & F_SET_0D0h) + rc = 0; + } else { + if (s->flags & F_SET_0D0h) + rc = 4; + } + + rc = WR16(s, 0x0C20012, rc); + if (rc < 0) + goto error; + + rc = WR16(s, 0x0C20013, s->config.w9E); + if (rc < 0) + goto error; + rc = WR16(s, 0x0C20015, s->config.w9C); + if (rc < 0) + goto error; + + rc = write_fw(s, DRXD_InitFE_2); + if (rc < 0) + goto error; + rc = write_fw(s, DRXD_InitFT); + if (rc < 0) + goto error; + rc = write_fw(s, DRXD_InitCP); + if (rc < 0) + goto error; + rc = write_fw(s, DRXD_InitCE); + if (rc < 0) + goto error; + rc = write_fw(s, DRXD_InitEQ); + if (rc < 0) + goto error; + rc = write_fw(s, DRXD_InitEC); + if (rc < 0) + goto error; + rc = write_fw(s, DRXD_InitSC); + if (rc < 0) + goto error; + + rc = SetCfgIfAgc(s, &s->config.ifagc); + if (rc < 0) + goto error; + + rc = SetCfgRfAgc(s, &s->config.rfagc); + if (rc < 0) + goto error; + + rc = ConfigureMPEGOutput(s, 1); + rc = WR16(s, 0x08201fe, 0x0017); + rc = WR16(s, 0x08201ff, 0x0101); + + s->config.d5C = 0; + s->config.d60 = 1; + s->config.d48 = 1; + error: + return rc; +} + +static int drx397x_get_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + return 0; +} + +static int drx397x_set_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + struct drx397xD_state *s = fe->demodulator_priv; + + s->config.s20d24 = 1; // 0; + return drx_tune(s, params); +} + +static int drx397x_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings + *fe_tune_settings) +{ + fe_tune_settings->min_delay_ms = 10000; + fe_tune_settings->step_size = 0; + fe_tune_settings->max_drift = 0; + return 0; +} + +static int drx397x_read_status(struct dvb_frontend *fe, fe_status_t * status) +{ + struct drx397xD_state *s = fe->demodulator_priv; + int lockstat; + + GetLockStatus(s, &lockstat); + /* TODO */ +// if (lockstat & 1) +// CorrectSysClockDeviation(s); + + *status = 0; + if (lockstat & 2) { + CorrectSysClockDeviation(s); + ConfigureMPEGOutput(s, 1); + *status = FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI; + } + if (lockstat & 4) { + *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL; + } + + return 0; +} + +static int drx397x_read_ber(struct dvb_frontend *fe, unsigned int *ber) +{ + *ber = 0; + return 0; +} + +static int drx397x_read_snr(struct dvb_frontend *fe, u16 * snr) +{ + *snr = 0; + return 0; +} + +static int drx397x_read_signal_strength(struct dvb_frontend *fe, u16 * strength) +{ + struct drx397xD_state *s = fe->demodulator_priv; + int rc; + + if (s->config.ifagc.d00 == 2) { + *strength = 0xffff; + return 0; + } + rc = RD16(s, 0x0c20035); + if (rc < 0) { + *strength = 0; + return 0; + } + rc &= 0x3ff; + /* Signal strength is calculated using the following formula: + * + * a = 2200 * 150 / (2200 + 150); + * a = a * 3300 / (a + 820); + * b = 2200 * 3300 / (2200 + 820); + * c = (((b-a) * rc) >> 10 + a) << 4; + * strength = ~c & 0xffff; + * + * The following does the same but with less rounding errors: + */ + *strength = ~(7720 + (rc * 30744 >> 10)); + return 0; +} + +static int drx397x_read_ucblocks(struct dvb_frontend *fe, + unsigned int *ucblocks) +{ + *ucblocks = 0; + return 0; +} + +static int drx397x_sleep(struct dvb_frontend *fe) +{ + return 0; +} + +static void drx397x_release(struct dvb_frontend *fe) +{ + struct drx397xD_state *s = fe->demodulator_priv; + printk(KERN_INFO "%s: release demodulator\n", mod_name); + if (s) { + drx_release_fw(s); + kfree(s); + } + +} + +static struct dvb_frontend_ops drx397x_ops = { + + .info = { + .name = "Micronas DRX397xD DVB-T Frontend", + .type = FE_OFDM, + .frequency_min = 47125000, + .frequency_max = 855250000, + .frequency_stepsize = 166667, + .frequency_tolerance = 0, + .caps = /* 0x0C01B2EAE */ + FE_CAN_FEC_1_2 | // = 0x2, + FE_CAN_FEC_2_3 | // = 0x4, + FE_CAN_FEC_3_4 | // = 0x8, + FE_CAN_FEC_5_6 | // = 0x20, + FE_CAN_FEC_7_8 | // = 0x80, + FE_CAN_FEC_AUTO | // = 0x200, + FE_CAN_QPSK | // = 0x400, + FE_CAN_QAM_16 | // = 0x800, + FE_CAN_QAM_64 | // = 0x2000, + FE_CAN_QAM_AUTO | // = 0x10000, + FE_CAN_TRANSMISSION_MODE_AUTO | // = 0x20000, + FE_CAN_GUARD_INTERVAL_AUTO | // = 0x80000, + FE_CAN_HIERARCHY_AUTO | // = 0x100000, + FE_CAN_RECOVER | // = 0x40000000, + FE_CAN_MUTE_TS // = 0x80000000 + }, + + .release = drx397x_release, + .init = drx397x_init, + .sleep = drx397x_sleep, + + .set_frontend = drx397x_set_frontend, + .get_tune_settings = drx397x_get_tune_settings, + .get_frontend = drx397x_get_frontend, + + .read_status = drx397x_read_status, + .read_snr = drx397x_read_snr, + .read_signal_strength = drx397x_read_signal_strength, + .read_ber = drx397x_read_ber, + .read_ucblocks = drx397x_read_ucblocks, +}; + +struct dvb_frontend *drx397xD_attach(const struct drx397xD_config *config, + struct i2c_adapter *i2c) +{ + struct drx397xD_state *s = NULL; + + /* allocate memory for the internal state */ + s = kzalloc(sizeof(struct drx397xD_state), GFP_KERNEL); + if (s == NULL) + goto error; + + /* setup the state */ + s->i2c = i2c; + memcpy(&s->config, config, sizeof(struct drx397xD_config)); + + /* check if the demod is there */ + if (RD16(s, 0x2410019) < 0) + goto error; + + /* create dvb_frontend */ + memcpy(&s->frontend.ops, &drx397x_ops, sizeof(struct dvb_frontend_ops)); + s->frontend.demodulator_priv = s; + + return &s->frontend; + error: + kfree(s); + return NULL; +} + +MODULE_DESCRIPTION("Micronas DRX397xD DVB-T Frontend"); +MODULE_AUTHOR("Henk Vergonet"); +MODULE_LICENSE("GPL"); + +EXPORT_SYMBOL(drx397xD_attach); diff --git a/drivers/media/dvb/frontends/drx397xD.h b/drivers/media/dvb/frontends/drx397xD.h new file mode 100644 index 000000000000..ddc7a07971b7 --- /dev/null +++ b/drivers/media/dvb/frontends/drx397xD.h @@ -0,0 +1,130 @@ +/* + * Driver for Micronas DVB-T drx397xD demodulator + * + * Copyright (C) 2007 Henk vergonet <Henk.Vergonet@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.= + */ + +#ifndef _DRX397XD_H_INCLUDED +#define _DRX397XD_H_INCLUDED + +#include <linux/dvb/frontend.h> + +#define DRX_F_STEPSIZE 166667 +#define DRX_F_OFFSET 36000000 + +#define I2C_ADR_C0(x) \ +( (u32)cpu_to_le32( \ + (u32)( \ + (((u32)(x) & (u32)0x000000ffUL) ) | \ + (((u32)(x) & (u32)0x0000ff00UL) << 16) | \ + (((u32)(x) & (u32)0x0fff0000UL) >> 8) | \ + ( (u32)0x00c00000UL) \ + )) \ +) + +#define I2C_ADR_E0(x) \ +( (u32)cpu_to_le32( \ + (u32)( \ + (((u32)(x) & (u32)0x000000ffUL) ) | \ + (((u32)(x) & (u32)0x0000ff00UL) << 16) | \ + (((u32)(x) & (u32)0x0fff0000UL) >> 8) | \ + ( (u32)0x00e00000UL) \ + )) \ +) + +struct drx397xD_CfgRfAgc /* 0x7c */ +{ + int d00; /* 2 */ + u16 w04; + u16 w06; +}; + +struct drx397xD_CfgIfAgc /* 0x68 */ +{ + int d00; /* 0 */ + u16 w04; /* 0 */ + u16 w06; + u16 w08; + u16 w0A; + u16 w0C; +}; + +struct drx397xD_s20 { + int d04; + u32 d18; + u32 d1C; + u32 d20; + u32 d14; + u32 d24; + u32 d0C; + u32 d08; +}; + +struct drx397xD_config +{ + /* demodulator's I2C address */ + u8 demod_address; /* 0x0f */ + + struct drx397xD_CfgIfAgc ifagc; /* 0x68 */ + struct drx397xD_CfgRfAgc rfagc; /* 0x7c */ + u32 s20d24; + + /* HI_CfgCommand parameters */ + u16 w50, w52, /* w54, */ w56; + + int d5C; + int d60; + int d48; + int d28; + + u32 f_if; /* d14: intermediate frequency [Hz] */ + /* 36000000 on Cinergy 2400i DT */ + /* 42800000 on Pinnacle Hybrid PRO 330e */ + + u16 f_osc; /* s66: 48000 oscillator frequency [kHz] */ + + u16 w92; /* 20000 */ + + u16 wA0; + u16 w98; + u16 w9A; + + u16 w9C; /* 0xe0 */ + u16 w9E; /* 0x00 */ + + /* used for signal strength calculations in + drx397x_read_signal_strength + */ + u16 ss78; // 2200 + u16 ss7A; // 150 + u16 ss76; // 820 +}; + +#if defined(CONFIG_DVB_DRX397XD) || (defined(CONFIG_DVB_DRX397XD_MODULE) && defined(MODULE)) +extern struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config, + struct i2c_adapter *i2c); +#else +static inline struct dvb_frontend* drx397xD_attach(const struct drx397xD_config *config, + struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__); + return NULL; +} +#endif /* CONFIG_DVB_DRX397XD */ + +#endif /* _DRX397XD_H_INCLUDED */ diff --git a/drivers/media/dvb/frontends/drx397xD_fw.h b/drivers/media/dvb/frontends/drx397xD_fw.h new file mode 100644 index 000000000000..01de02a81cd4 --- /dev/null +++ b/drivers/media/dvb/frontends/drx397xD_fw.h @@ -0,0 +1,40 @@ +/* + * Firmware definitions for Micronas drx397xD + * + * Copyright (C) 2007 Henk Vergonet <Henk.Vergonet@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; If not, see <http://www.gnu.org/licenses/>. + */ + +#ifdef _FW_ENTRY + _FW_ENTRY("drx397xD.A2.fw", DRXD_FW_A2 = 0 ), + _FW_ENTRY("drx397xD.B1.fw", DRXD_FW_B1 ), +#undef _FW_ENTRY +#endif /* _FW_ENTRY */ + +#ifdef _BLOB_ENTRY + _BLOB_ENTRY("InitAtomicRead", DRXD_InitAtomicRead = 0 ), + _BLOB_ENTRY("InitCE", DRXD_InitCE ), + _BLOB_ENTRY("InitCP", DRXD_InitCP ), + _BLOB_ENTRY("InitEC", DRXD_InitEC ), + _BLOB_ENTRY("InitEQ", DRXD_InitEQ ), + _BLOB_ENTRY("InitFE_1", DRXD_InitFE_1 ), + _BLOB_ENTRY("InitFE_2", DRXD_InitFE_2 ), + _BLOB_ENTRY("InitFT", DRXD_InitFT ), + _BLOB_ENTRY("InitSC", DRXD_InitSC ), + _BLOB_ENTRY("ResetCEFR", DRXD_ResetCEFR ), + _BLOB_ENTRY("ResetECRAM", DRXD_ResetECRAM ), + _BLOB_ENTRY("microcode", DRXD_microcode ), +#undef _BLOB_ENTRY +#endif /* _BLOB_ENTRY */ diff --git a/drivers/media/dvb/frontends/dvb-pll.c b/drivers/media/dvb/frontends/dvb-pll.c index a054894ff481..ea058153ebfa 100644 --- a/drivers/media/dvb/frontends/dvb-pll.c +++ b/drivers/media/dvb/frontends/dvb-pll.c @@ -343,6 +343,52 @@ static struct dvb_pll_desc dvb_pll_opera1 = { } }; +static void samsung_dtos403ih102a_set(struct dvb_frontend *fe, u8 *buf, + const struct dvb_frontend_parameters *params) +{ + struct dvb_pll_priv *priv = fe->tuner_priv; + struct i2c_msg msg = { + .addr = priv->pll_i2c_address, + .flags = 0, + .buf = buf, + .len = 4 + }; + int result; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + result = i2c_transfer(priv->i2c, &msg, 1); + if (result != 1) + printk(KERN_ERR "%s: i2c_transfer failed:%d", + __func__, result); + + buf[2] = 0x9e; + buf[3] = 0x90; + + return; +} + +/* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */ +static struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = { + .name = "Samsung DTOS403IH102A", + .min = 44250000, + .max = 858000000, + .iffreq = 36125000, + .count = 8, + .set = samsung_dtos403ih102a_set, + .entries = { + { 135000000, 62500, 0xbe, 0x01 }, + { 177000000, 62500, 0xf6, 0x01 }, + { 370000000, 62500, 0xbe, 0x02 }, + { 450000000, 62500, 0xf6, 0x02 }, + { 466000000, 62500, 0xfe, 0x02 }, + { 538000000, 62500, 0xbe, 0x08 }, + { 826000000, 62500, 0xf6, 0x08 }, + { 999999999, 62500, 0xfe, 0x08 }, + } +}; + /* ----------------------------------------------------------- */ static struct dvb_pll_desc *pll_list[] = { @@ -360,6 +406,7 @@ static struct dvb_pll_desc *pll_list[] = { [DVB_PLL_SAMSUNG_TBMV] = &dvb_pll_samsung_tbmv, [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261, [DVB_PLL_OPERA1] = &dvb_pll_opera1, + [DVB_PLL_SAMSUNG_DTOS403IH102A] = &dvb_pll_samsung_dtos403ih102a, }; /* ----------------------------------------------------------- */ diff --git a/drivers/media/dvb/frontends/dvb-pll.h b/drivers/media/dvb/frontends/dvb-pll.h index 872ca29e7cf3..05239f579ccf 100644 --- a/drivers/media/dvb/frontends/dvb-pll.h +++ b/drivers/media/dvb/frontends/dvb-pll.h @@ -22,6 +22,7 @@ #define DVB_PLL_SAMSUNG_TBMV 11 #define DVB_PLL_PHILIPS_SD1878_TDA8261 12 #define DVB_PLL_OPERA1 13 +#define DVB_PLL_SAMSUNG_DTOS403IH102A 14 /** * Attach a dvb-pll to the supplied frontend structure. diff --git a/drivers/media/dvb/frontends/nxt200x.c b/drivers/media/dvb/frontends/nxt200x.c index 23d022852543..af298358e822 100644 --- a/drivers/media/dvb/frontends/nxt200x.c +++ b/drivers/media/dvb/frontends/nxt200x.c @@ -93,7 +93,8 @@ static u8 i2c_readbytes (struct nxt200x_state* state, u8 addr, u8* buf, u8 len) return 0; } -static int nxt200x_writebytes (struct nxt200x_state* state, u8 reg, u8 *buf, u8 len) +static int nxt200x_writebytes (struct nxt200x_state* state, u8 reg, + const u8 *buf, u8 len) { u8 buf2 [len+1]; int err; diff --git a/drivers/media/dvb/frontends/or51211.c b/drivers/media/dvb/frontends/or51211.c index 7eaa4765593f..6afe12aaca4e 100644 --- a/drivers/media/dvb/frontends/or51211.c +++ b/drivers/media/dvb/frontends/or51211.c @@ -69,7 +69,7 @@ struct or51211_state { u32 current_frequency; }; -static int i2c_writebytes (struct or51211_state* state, u8 reg, u8 *buf, +static int i2c_writebytes (struct or51211_state* state, u8 reg, const u8 *buf, int len) { int err; @@ -77,7 +77,7 @@ static int i2c_writebytes (struct or51211_state* state, u8 reg, u8 *buf, msg.addr = reg; msg.flags = 0; msg.len = len; - msg.buf = buf; + msg.buf = (u8 *)buf; if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) { printk(KERN_WARNING "or51211: i2c_writebytes error " diff --git a/drivers/media/dvb/frontends/s5h1409.c b/drivers/media/dvb/frontends/s5h1409.c index b999ec424ff7..5ddb2dca305c 100644 --- a/drivers/media/dvb/frontends/s5h1409.c +++ b/drivers/media/dvb/frontends/s5h1409.c @@ -26,7 +26,6 @@ #include <linux/slab.h> #include <linux/delay.h> #include "dvb_frontend.h" -#include "dvb-pll.h" #include "s5h1409.h" struct s5h1409_state { diff --git a/drivers/media/dvb/frontends/s5h1411.c b/drivers/media/dvb/frontends/s5h1411.c index eb5bfc99d4e9..cff360ce1ba3 100644 --- a/drivers/media/dvb/frontends/s5h1411.c +++ b/drivers/media/dvb/frontends/s5h1411.c @@ -26,7 +26,6 @@ #include <linux/slab.h> #include <linux/delay.h> #include "dvb_frontend.h" -#include "dvb-pll.h" #include "s5h1411.h" struct s5h1411_state { diff --git a/drivers/media/dvb/frontends/sp8870.c b/drivers/media/dvb/frontends/sp8870.c index aa78aa14aad9..1c9a9b4051b9 100644 --- a/drivers/media/dvb/frontends/sp8870.c +++ b/drivers/media/dvb/frontends/sp8870.c @@ -98,7 +98,7 @@ static int sp8870_readreg (struct sp8870_state* state, u16 reg) static int sp8870_firmware_upload (struct sp8870_state* state, const struct firmware *fw) { struct i2c_msg msg; - char *fw_buf = fw->data; + const char *fw_buf = fw->data; int fw_pos; u8 tx_buf[255]; int tx_len; diff --git a/drivers/media/dvb/frontends/sp887x.c b/drivers/media/dvb/frontends/sp887x.c index 49f55877f513..4543609e1816 100644 --- a/drivers/media/dvb/frontends/sp887x.c +++ b/drivers/media/dvb/frontends/sp887x.c @@ -140,7 +140,7 @@ static int sp887x_initial_setup (struct dvb_frontend* fe, const struct firmware u8 buf [BLOCKSIZE+2]; int i; int fw_size = fw->size; - unsigned char *mem = fw->data; + const unsigned char *mem = fw->data; dprintk("%s\n", __func__); diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c index 17556183e871..35435bef8e79 100644 --- a/drivers/media/dvb/frontends/stv0299.c +++ b/drivers/media/dvb/frontends/stv0299.c @@ -63,6 +63,7 @@ struct stv0299_state { u32 symbol_rate; fe_code_rate_t fec_inner; int errmode; + u32 ucblocks; }; #define STATUS_BER 0 @@ -501,8 +502,10 @@ static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber) { struct stv0299_state* state = fe->demodulator_priv; - if (state->errmode != STATUS_BER) return 0; - *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); + if (state->errmode != STATUS_BER) + return -ENOSYS; + + *ber = stv0299_readreg(state, 0x1e) | (stv0299_readreg(state, 0x1d) << 8); return 0; } @@ -540,8 +543,12 @@ static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) { struct stv0299_state* state = fe->demodulator_priv; - if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0; - else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); + if (state->errmode != STATUS_UCBLOCKS) + return -ENOSYS; + + state->ucblocks += stv0299_readreg(state, 0x1e); + state->ucblocks += (stv0299_readreg(state, 0x1d) << 8); + *ucblocks = state->ucblocks; return 0; } diff --git a/drivers/media/dvb/frontends/tda10023.c b/drivers/media/dvb/frontends/tda10023.c index 0727b80bc4d2..a3c34eecdee9 100644 --- a/drivers/media/dvb/frontends/tda10023.c +++ b/drivers/media/dvb/frontends/tda10023.c @@ -38,75 +38,29 @@ #include "dvb_frontend.h" #include "tda1002x.h" +#define REG0_INIT_VAL 0x23 struct tda10023_state { struct i2c_adapter* i2c; /* configuration settings */ - const struct tda1002x_config* config; + const struct tda10023_config *config; struct dvb_frontend frontend; u8 pwm; u8 reg0; -}; + /* clock settings */ + u32 xtal; + u8 pll_m; + u8 pll_p; + u8 pll_n; + u32 sysclk; +}; #define dprintk(x...) static int verbose; -#define XTAL 28920000UL -#define PLL_M 8UL -#define PLL_P 4UL -#define PLL_N 1UL -#define SYSCLK (XTAL*PLL_M/(PLL_N*PLL_P)) // -> 57840000 - -static u8 tda10023_inittab[]={ - // reg mask val - 0x2a,0xff,0x02, // PLL3, Bypass, Power Down - 0xff,0x64,0x00, // Sleep 100ms - 0x2a,0xff,0x03, // PLL3, Bypass, Power Down - 0xff,0x64,0x00, // Sleep 100ms - 0x28,0xff,PLL_M-1, // PLL1 M=8 - 0x29,0xff,((PLL_P-1)<<6)|(PLL_N-1), // PLL2 - 0x00,0xff,0x23, // GPR FSAMPLING=1 - 0x2a,0xff,0x08, // PLL3 PSACLK=1 - 0xff,0x64,0x00, // Sleep 100ms - 0x1f,0xff,0x00, // RESET - 0xff,0x64,0x00, // Sleep 100ms - 0xe6,0x0c,0x04, // RSCFG_IND - 0x10,0xc0,0x80, // DECDVBCFG1 PBER=1 - - 0x0e,0xff,0x82, // GAIN1 - 0x03,0x08,0x08, // CLKCONF DYN=1 - 0x2e,0xbf,0x30, // AGCCONF2 TRIAGC=0,POSAGC=ENAGCIF=1 PPWMTUN=0 PPWMIF=0 - 0x01,0xff,0x30, // AGCREF - 0x1e,0x84,0x84, // CONTROL SACLK_ON=1 - 0x1b,0xff,0xc8, // ADC TWOS=1 - 0x3b,0xff,0xff, // IFMAX - 0x3c,0xff,0x00, // IFMIN - 0x34,0xff,0x00, // PWMREF - 0x35,0xff,0xff, // TUNMAX - 0x36,0xff,0x00, // TUNMIN - 0x06,0xff,0x7f, // EQCONF1 POSI=7 ENADAPT=ENEQUAL=DFE=1 // 0x77 - 0x1c,0x30,0x30, // EQCONF2 STEPALGO=SGNALGO=1 - 0x37,0xff,0xf6, // DELTAF_LSB - 0x38,0xff,0xff, // DELTAF_MSB - 0x02,0xff,0x93, // AGCCONF1 IFS=1 KAGCIF=2 KAGCTUN=3 - 0x2d,0xff,0xf6, // SWEEP SWPOS=1 SWDYN=7 SWSTEP=1 SWLEN=2 - 0x04,0x10,0x00, // SWRAMP=1 - 0x12,0xff,0xa1, // INTP1 POCLKP=1 FEL=1 MFS=0 - 0x2b,0x01,0xa1, // INTS1 - 0x20,0xff,0x04, // INTP2 SWAPP=? MSBFIRSTP=? INTPSEL=? - 0x2c,0xff,0x0d, // INTP/S TRIP=0 TRIS=0 - 0xc4,0xff,0x00, - 0xc3,0x30,0x00, - 0xb5,0xff,0x19, // ERAGC_THD - 0x00,0x03,0x01, // GPR, CLBS soft reset - 0x00,0x03,0x03, // GPR, CLBS soft reset - 0xff,0x64,0x00, // Sleep 100ms - 0xff,0xff,0xff -}; - static u8 tda10023_readreg (struct tda10023_state* state, u8 reg) { u8 b0 [] = { reg }; @@ -116,9 +70,12 @@ static u8 tda10023_readreg (struct tda10023_state* state, u8 reg) int ret; ret = i2c_transfer (state->i2c, msg, 2); - if (ret != 2) - printk("DVB: TDA10023: %s: readreg error (ret == %i)\n", - __func__, ret); + if (ret != 2) { + int num = state->frontend.dvb ? state->frontend.dvb->num : -1; + printk(KERN_ERR "DVB: TDA10023(%d): %s: readreg error " + "(reg == 0x%02x, ret == %i)\n", + num, __func__, reg, ret); + } return b1[0]; } @@ -129,11 +86,12 @@ static int tda10023_writereg (struct tda10023_state* state, u8 reg, u8 data) int ret; ret = i2c_transfer (state->i2c, &msg, 1); - if (ret != 1) - printk("DVB: TDA10023(%d): %s, writereg error " + if (ret != 1) { + int num = state->frontend.dvb ? state->frontend.dvb->num : -1; + printk(KERN_ERR "DVB: TDA10023(%d): %s, writereg error " "(reg == 0x%02x, val == 0x%02x, ret == %i)\n", - state->frontend.dvb->num, __func__, reg, data, ret); - + num, __func__, reg, data, ret); + } return (ret != 1) ? -EREMOTEIO : 0; } @@ -215,30 +173,34 @@ static int tda10023_set_symbolrate (struct tda10023_state* state, u32 sr) s16 SFIL=0; u16 NDEC = 0; - if (sr < (u32)(SYSCLK/98.40)) { + /* avoid floating point operations multiplying syscloc and divider + by 10 */ + u32 sysclk_x_10 = state->sysclk * 10; + + if (sr < (u32)(sysclk_x_10/984)) { NDEC=3; SFIL=1; - } else if (sr<(u32)(SYSCLK/64.0)) { + } else if (sr < (u32)(sysclk_x_10/640)) { NDEC=3; SFIL=0; - } else if (sr<(u32)(SYSCLK/49.2)) { + } else if (sr < (u32)(sysclk_x_10/492)) { NDEC=2; SFIL=1; - } else if (sr<(u32)(SYSCLK/32.0)) { + } else if (sr < (u32)(sysclk_x_10/320)) { NDEC=2; SFIL=0; - } else if (sr<(u32)(SYSCLK/24.6)) { + } else if (sr < (u32)(sysclk_x_10/246)) { NDEC=1; SFIL=1; - } else if (sr<(u32)(SYSCLK/16.0)) { + } else if (sr < (u32)(sysclk_x_10/160)) { NDEC=1; SFIL=0; - } else if (sr<(u32)(SYSCLK/12.3)) { + } else if (sr < (u32)(sysclk_x_10/123)) { NDEC=0; SFIL=1; } - BDRI=SYSCLK*16; + BDRI = (state->sysclk)*16; BDRI>>=NDEC; BDRI +=sr/2; BDRI /=sr; @@ -251,11 +213,12 @@ static int tda10023_set_symbolrate (struct tda10023_state* state, u32 sr) BDRX=1<<(24+NDEC); BDRX*=sr; - do_div(BDRX,SYSCLK); // BDRX/=SYSCLK; + do_div(BDRX, state->sysclk); /* BDRX/=SYSCLK; */ BDR=(s32)BDRX; } -// printk("Symbolrate %i, BDR %i BDRI %i, NDEC %i\n",sr,BDR,BDRI,NDEC); + dprintk("Symbolrate %i, BDR %i BDRI %i, NDEC %i\n", + sr, BDR, BDRI, NDEC); tda10023_writebit (state, 0x03, 0xc0, NDEC<<6); tda10023_writereg (state, 0x0a, BDR&255); tda10023_writereg (state, 0x0b, (BDR>>8)&255); @@ -268,8 +231,67 @@ static int tda10023_set_symbolrate (struct tda10023_state* state, u32 sr) static int tda10023_init (struct dvb_frontend *fe) { struct tda10023_state* state = fe->demodulator_priv; + u8 tda10023_inittab[] = { +/* reg mask val */ +/* 000 */ 0x2a, 0xff, 0x02, /* PLL3, Bypass, Power Down */ +/* 003 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ +/* 006 */ 0x2a, 0xff, 0x03, /* PLL3, Bypass, Power Down */ +/* 009 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ + /* PLL1 */ +/* 012 */ 0x28, 0xff, (state->pll_m-1), + /* PLL2 */ +/* 015 */ 0x29, 0xff, ((state->pll_p-1)<<6)|(state->pll_n-1), + /* GPR FSAMPLING=1 */ +/* 018 */ 0x00, 0xff, REG0_INIT_VAL, +/* 021 */ 0x2a, 0xff, 0x08, /* PLL3 PSACLK=1 */ +/* 024 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ +/* 027 */ 0x1f, 0xff, 0x00, /* RESET */ +/* 030 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ +/* 033 */ 0xe6, 0x0c, 0x04, /* RSCFG_IND */ +/* 036 */ 0x10, 0xc0, 0x80, /* DECDVBCFG1 PBER=1 */ + +/* 039 */ 0x0e, 0xff, 0x82, /* GAIN1 */ +/* 042 */ 0x03, 0x08, 0x08, /* CLKCONF DYN=1 */ +/* 045 */ 0x2e, 0xbf, 0x30, /* AGCCONF2 TRIAGC=0,POSAGC=ENAGCIF=1 + PPWMTUN=0 PPWMIF=0 */ +/* 048 */ 0x01, 0xff, 0x30, /* AGCREF */ +/* 051 */ 0x1e, 0x84, 0x84, /* CONTROL SACLK_ON=1 */ +/* 054 */ 0x1b, 0xff, 0xc8, /* ADC TWOS=1 */ +/* 057 */ 0x3b, 0xff, 0xff, /* IFMAX */ +/* 060 */ 0x3c, 0xff, 0x00, /* IFMIN */ +/* 063 */ 0x34, 0xff, 0x00, /* PWMREF */ +/* 066 */ 0x35, 0xff, 0xff, /* TUNMAX */ +/* 069 */ 0x36, 0xff, 0x00, /* TUNMIN */ +/* 072 */ 0x06, 0xff, 0x7f, /* EQCONF1 POSI=7 ENADAPT=ENEQUAL=DFE=1 */ +/* 075 */ 0x1c, 0x30, 0x30, /* EQCONF2 STEPALGO=SGNALGO=1 */ +/* 078 */ 0x37, 0xff, 0xf6, /* DELTAF_LSB */ +/* 081 */ 0x38, 0xff, 0xff, /* DELTAF_MSB */ +/* 084 */ 0x02, 0xff, 0x93, /* AGCCONF1 IFS=1 KAGCIF=2 KAGCTUN=3 */ +/* 087 */ 0x2d, 0xff, 0xf6, /* SWEEP SWPOS=1 SWDYN=7 SWSTEP=1 SWLEN=2 */ +/* 090 */ 0x04, 0x10, 0x00, /* SWRAMP=1 */ +/* 093 */ 0x12, 0xff, TDA10023_OUTPUT_MODE_PARALLEL_B, /* + INTP1 POCLKP=1 FEL=1 MFS=0 */ +/* 096 */ 0x2b, 0x01, 0xa1, /* INTS1 */ +/* 099 */ 0x20, 0xff, 0x04, /* INTP2 SWAPP=? MSBFIRSTP=? INTPSEL=? */ +/* 102 */ 0x2c, 0xff, 0x0d, /* INTP/S TRIP=0 TRIS=0 */ +/* 105 */ 0xc4, 0xff, 0x00, +/* 108 */ 0xc3, 0x30, 0x00, +/* 111 */ 0xb5, 0xff, 0x19, /* ERAGC_THD */ +/* 114 */ 0x00, 0x03, 0x01, /* GPR, CLBS soft reset */ +/* 117 */ 0x00, 0x03, 0x03, /* GPR, CLBS soft reset */ +/* 120 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ +/* 123 */ 0xff, 0xff, 0xff +}; + dprintk("DVB: TDA10023(%d): init chip\n", fe->dvb->num); + + /* override default values if set in config */ + if (state->config->deltaf) { + tda10023_inittab[80] = (state->config->deltaf & 0xff); + tda10023_inittab[83] = (state->config->deltaf >> 8); + } - dprintk("DVB: TDA10023(%d): init chip\n", fe->adapter->num); + if (state->config->output_mode) + tda10023_inittab[95] = state->config->output_mode; tda10023_writetab(state, tda10023_inittab); @@ -456,36 +478,53 @@ static void tda10023_release(struct dvb_frontend* fe) static struct dvb_frontend_ops tda10023_ops; -struct dvb_frontend* tda10023_attach(const struct tda1002x_config* config, - struct i2c_adapter* i2c, +struct dvb_frontend *tda10023_attach(const struct tda10023_config *config, + struct i2c_adapter *i2c, u8 pwm) { struct tda10023_state* state = NULL; - int i; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct tda10023_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tda10023_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ state->config = config; state->i2c = i2c; - memcpy(&state->frontend.ops, &tda10023_ops, sizeof(struct dvb_frontend_ops)); - state->pwm = pwm; - for (i=0; i < ARRAY_SIZE(tda10023_inittab);i+=3) { - if (tda10023_inittab[i] == 0x00) { - state->reg0 = tda10023_inittab[i+2]; - break; - } - } - // Wakeup if in standby + /* wakeup if in standby */ tda10023_writereg (state, 0x00, 0x33); /* check if the demod is there */ if ((tda10023_readreg(state, 0x1a) & 0xf0) != 0x70) goto error; /* create dvb_frontend */ memcpy(&state->frontend.ops, &tda10023_ops, sizeof(struct dvb_frontend_ops)); + state->pwm = pwm; + state->reg0 = REG0_INIT_VAL; + if (state->config->xtal) { + state->xtal = state->config->xtal; + state->pll_m = state->config->pll_m; + state->pll_p = state->config->pll_p; + state->pll_n = state->config->pll_n; + } else { + /* set default values if not defined in config */ + state->xtal = 28920000; + state->pll_m = 8; + state->pll_p = 4; + state->pll_n = 1; + } + + /* calc sysclk */ + state->sysclk = (state->xtal * state->pll_m / \ + (state->pll_n * state->pll_p)); + + state->frontend.ops.info.symbol_rate_min = (state->sysclk/2)/64; + state->frontend.ops.info.symbol_rate_max = (state->sysclk/2)/4; + + dprintk("DVB: TDA10023 %s: xtal:%d pll_m:%d pll_p:%d pll_n:%d\n", + __func__, state->xtal, state->pll_m, state->pll_p, + state->pll_n); + state->frontend.demodulator_priv = state; return &state->frontend; @@ -500,10 +539,10 @@ static struct dvb_frontend_ops tda10023_ops = { .name = "Philips TDA10023 DVB-C", .type = FE_QAM, .frequency_stepsize = 62500, - .frequency_min = 47000000, + .frequency_min = 47000000, .frequency_max = 862000000, - .symbol_rate_min = (SYSCLK/2)/64, /* SACLK/64 == (SYSCLK/2)/64 */ - .symbol_rate_max = (SYSCLK/2)/4, /* SACLK/4 */ + .symbol_rate_min = 0, /* set in tda10023_attach */ + .symbol_rate_max = 0, /* set in tda10023_attach */ .caps = 0x400 | //FE_CAN_QAM_4 FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 | FE_CAN_QAM_128 | FE_CAN_QAM_256 | diff --git a/drivers/media/dvb/frontends/tda1002x.h b/drivers/media/dvb/frontends/tda1002x.h index 1bcc0d44b90b..afc0a32eaabd 100644 --- a/drivers/media/dvb/frontends/tda1002x.h +++ b/drivers/media/dvb/frontends/tda1002x.h @@ -26,13 +26,37 @@ #include <linux/dvb/frontend.h> -struct tda1002x_config -{ +struct tda1002x_config { /* the demodulator's i2c address */ u8 demod_address; u8 invert; }; +enum tda10023_output_mode { + TDA10023_OUTPUT_MODE_PARALLEL_A = 0xe0, + TDA10023_OUTPUT_MODE_PARALLEL_B = 0xa1, + TDA10023_OUTPUT_MODE_PARALLEL_C = 0xa0, + TDA10023_OUTPUT_MODE_SERIAL, /* TODO: not implemented */ +}; + +struct tda10023_config { + /* the demodulator's i2c address */ + u8 demod_address; + u8 invert; + + /* clock settings */ + u32 xtal; /* defaults: 28920000 */ + u8 pll_m; /* defaults: 8 */ + u8 pll_p; /* defaults: 4 */ + u8 pll_n; /* defaults: 1 */ + + /* MPEG2 TS output mode */ + u8 output_mode; + + /* input freq offset + baseband conversion type */ + u16 deltaf; +}; + #if defined(CONFIG_DVB_TDA10021) || (defined(CONFIG_DVB_TDA10021_MODULE) && defined(MODULE)) extern struct dvb_frontend* tda10021_attach(const struct tda1002x_config* config, struct i2c_adapter* i2c, u8 pwm); @@ -45,12 +69,15 @@ static inline struct dvb_frontend* tda10021_attach(const struct tda1002x_config* } #endif // CONFIG_DVB_TDA10021 -#if defined(CONFIG_DVB_TDA10023) || (defined(CONFIG_DVB_TDA10023_MODULE) && defined(MODULE)) -extern struct dvb_frontend* tda10023_attach(const struct tda1002x_config* config, - struct i2c_adapter* i2c, u8 pwm); +#if defined(CONFIG_DVB_TDA10023) || \ + (defined(CONFIG_DVB_TDA10023_MODULE) && defined(MODULE)) +extern struct dvb_frontend *tda10023_attach( + const struct tda10023_config *config, + struct i2c_adapter *i2c, u8 pwm); #else -static inline struct dvb_frontend* tda10023_attach(const struct tda1002x_config* config, - struct i2c_adapter* i2c, u8 pwm) +static inline struct dvb_frontend *tda10023_attach( + const struct tda1002x_config *config, + struct i2c_adapter *i2c, u8 pwm) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; diff --git a/drivers/media/dvb/frontends/tda10048.c b/drivers/media/dvb/frontends/tda10048.c index 090fb7dd93c6..0ab8d86b3ae3 100644 --- a/drivers/media/dvb/frontends/tda10048.c +++ b/drivers/media/dvb/frontends/tda10048.c @@ -233,7 +233,7 @@ static u8 tda10048_readreg(struct tda10048_state *state, u8 reg) } static int tda10048_writeregbulk(struct tda10048_state *state, u8 reg, - u8 *data, u16 len) + const u8 *data, u16 len) { int ret = -EREMOTEIO; struct i2c_msg msg; diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c index 49973846373e..1465ff77b0cb 100644 --- a/drivers/media/dvb/frontends/tda1004x.c +++ b/drivers/media/dvb/frontends/tda1004x.c @@ -317,7 +317,7 @@ static int tda10046h_set_bandwidth(struct tda1004x_state *state, } static int tda1004x_do_upload(struct tda1004x_state *state, - unsigned char *mem, unsigned int len, + const unsigned char *mem, unsigned int len, u8 dspCodeCounterReg, u8 dspCodeInReg) { u8 buf[65]; @@ -1248,11 +1248,14 @@ struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, struct i2c_adapter* i2c) { struct tda1004x_state *state; + int id; /* allocate memory for the internal state */ state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL); - if (!state) + if (!state) { + printk(KERN_ERR "Can't alocate memory for tda10045 state\n"); return NULL; + } /* setup the state */ state->config = config; @@ -1260,7 +1263,15 @@ struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, state->demod_type = TDA1004X_DEMOD_TDA10045; /* check if the demod is there */ - if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x25) { + id = tda1004x_read_byte(state, TDA1004X_CHIPID); + if (id < 0) { + printk(KERN_ERR "tda10045: chip is not answering. Giving up.\n"); + kfree(state); + return NULL; + } + + if (id != 0x25) { + printk(KERN_ERR "Invalid tda1004x ID = 0x%02x. Can't proceed\n", id); kfree(state); return NULL; } @@ -1307,11 +1318,14 @@ struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, struct i2c_adapter* i2c) { struct tda1004x_state *state; + int id; /* allocate memory for the internal state */ state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL); - if (!state) + if (!state) { + printk(KERN_ERR "Can't alocate memory for tda10046 state\n"); return NULL; + } /* setup the state */ state->config = config; @@ -1319,7 +1333,14 @@ struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, state->demod_type = TDA1004X_DEMOD_TDA10046; /* check if the demod is there */ - if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x46) { + id = tda1004x_read_byte(state, TDA1004X_CHIPID); + if (id < 0) { + printk(KERN_ERR "tda10046: chip is not answering. Giving up.\n"); + kfree(state); + return NULL; + } + if (id != 0x46) { + printk(KERN_ERR "Invalid tda1004x ID = 0x%02x. Can't proceed\n", id); kfree(state); return NULL; } diff --git a/drivers/media/dvb/ttpci/Kconfig b/drivers/media/dvb/ttpci/Kconfig index d4339b1b3b68..87c973ac668b 100644 --- a/drivers/media/dvb/ttpci/Kconfig +++ b/drivers/media/dvb/ttpci/Kconfig @@ -101,10 +101,13 @@ config DVB_BUDGET config DVB_BUDGET_CI tristate "Budget cards with onboard CI connector" depends on DVB_BUDGET_CORE && I2C + depends on INPUT # due to IR select DVB_STV0297 if !DVB_FE_CUSTOMISE select DVB_STV0299 if !DVB_FE_CUSTOMISE select DVB_TDA1004X if !DVB_FE_CUSTOMISE select DVB_LNBP21 if !DVB_FE_CUSTOMISE + select DVB_TDA10023 if !DVB_FE_CUSTOMISE + select MEDIA_TUNER_TDA827X if !DVB_FE_CUSTOMISE select VIDEO_IR help Support for simple SAA7146 based DVB cards diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c index f05d43d8b5cf..6d7b9f6a6c75 100644 --- a/drivers/media/dvb/ttpci/av7110.c +++ b/drivers/media/dvb/ttpci/av7110.c @@ -1198,7 +1198,6 @@ static int start_ts_capture(struct av7110 *budget) if (budget->feeding1) return ++budget->feeding1; memset(budget->grabbing, 0x00, TS_HEIGHT * TS_WIDTH); - budget->tsf = 0xff; budget->ttbp = 0; SAA7146_IER_ENABLE(budget->dev, MASK_10); /* VPE */ saa7146_write(budget->dev, MC1, (MASK_04 | MASK_20)); /* DMA3 on */ diff --git a/drivers/media/dvb/ttpci/av7110.h b/drivers/media/dvb/ttpci/av7110.h index e494e04eeee8..55f23ddcb994 100644 --- a/drivers/media/dvb/ttpci/av7110.h +++ b/drivers/media/dvb/ttpci/av7110.h @@ -188,7 +188,6 @@ struct av7110 { struct dvb_net dvb_net1; spinlock_t feedlock1; int feeding1; - u8 tsf; u32 ttbp; unsigned char *grabbing; struct saa7146_pgtable pt; diff --git a/drivers/media/dvb/ttpci/av7110_hw.c b/drivers/media/dvb/ttpci/av7110_hw.c index 9d81074b31df..3a3f5279e927 100644 --- a/drivers/media/dvb/ttpci/av7110_hw.c +++ b/drivers/media/dvb/ttpci/av7110_hw.c @@ -427,6 +427,7 @@ static int __av7110_send_fw_cmd(struct av7110 *av7110, u16* buf, int length) if (err) { printk(KERN_ERR "%s: timeout waiting on busy %s QUEUE\n", __func__, type); + av7110->arm_errors++; return -ETIMEDOUT; } msleep(1); @@ -853,10 +854,8 @@ static osd_raw_window_t bpp2bit[8] = { static inline int WaitUntilBmpLoaded(struct av7110 *av7110) { - int ret = wait_event_interruptible_timeout(av7110->bmpq, + int ret = wait_event_timeout(av7110->bmpq, av7110->bmp_state != BMP_LOADING, 10*HZ); - if (ret == -ERESTARTSYS) - return ret; if (ret == 0) { printk("dvb-ttpci: warning: timeout waiting in LoadBitmap: %d, %d\n", ret, av7110->bmp_state); diff --git a/drivers/media/dvb/ttpci/av7110_hw.h b/drivers/media/dvb/ttpci/av7110_hw.h index 74d940f75da6..ca99e5c1fc8a 100644 --- a/drivers/media/dvb/ttpci/av7110_hw.h +++ b/drivers/media/dvb/ttpci/av7110_hw.h @@ -305,7 +305,6 @@ enum av7110_command_type { #define IRQ_STATE (DPRAM_BASE + 0x0F4) #define IRQ_STATE_EXT (DPRAM_BASE + 0x0F6) #define MSGSTATE (DPRAM_BASE + 0x0F8) -#define FILT_STATE (DPRAM_BASE + 0x0FA) #define COMMAND (DPRAM_BASE + 0x0FC) #define COM_BUFF (DPRAM_BASE + 0x100) #define COM_BUFF_SIZE 0x20 @@ -332,8 +331,6 @@ enum av7110_command_type { /* firmware status area */ #define STATUS_BASE (DPRAM_BASE + 0x1FC0) -#define STATUS_SCR (STATUS_BASE + 0x00) -#define STATUS_MODES (STATUS_BASE + 0x04) #define STATUS_LOOPS (STATUS_BASE + 0x08) #define STATUS_MPEG_WIDTH (STATUS_BASE + 0x0C) diff --git a/drivers/media/dvb/ttpci/budget-av.c b/drivers/media/dvb/ttpci/budget-av.c index b30a5288e484..b7d1f2f18d3a 100644 --- a/drivers/media/dvb/ttpci/budget-av.c +++ b/drivers/media/dvb/ttpci/budget-av.c @@ -667,6 +667,11 @@ static struct tda1002x_config philips_cu1216_config_altaddress = { .invert = 0, }; +static struct tda10023_config philips_cu1216_tda10023_config = { + .demod_address = 0x0c, + .invert = 1, +}; + static int philips_tu1216_tuner_init(struct dvb_frontend *fe) { struct budget *budget = (struct budget *) fe->dvb->priv; @@ -1019,9 +1024,10 @@ static void frontend_init(struct budget_av *budget_av) case SUBID_DVBC_KNC1_PLUS_MK3: budget_av->reinitialise_demod = 1; budget_av->budget.dev->i2c_bitrate = SAA7146_I2C_BUS_BIT_RATE_240; - fe = dvb_attach(tda10023_attach, &philips_cu1216_config, - &budget_av->budget.i2c_adap, - read_pwm(budget_av)); + fe = dvb_attach(tda10023_attach, + &philips_cu1216_tda10023_config, + &budget_av->budget.i2c_adap, + read_pwm(budget_av)); if (fe) { fe->ops.tuner_ops.set_params = philips_cu1216_tuner_set_params; } diff --git a/drivers/media/dvb/ttpci/budget-ci.c b/drivers/media/dvb/ttpci/budget-ci.c index 6530323d5406..6dd779ef6eff 100644 --- a/drivers/media/dvb/ttpci/budget-ci.c +++ b/drivers/media/dvb/ttpci/budget-ci.c @@ -225,6 +225,7 @@ static int msp430_ir_init(struct budget_ci *budget_ci) break; case 0x1010: case 0x1017: + case 0x101a: /* for the Technotrend 1500 bundled remote */ ir_input_init(input_dev, &budget_ci->ir.state, IR_TYPE_RC5, ir_codes_tt_1500); diff --git a/drivers/media/dvb/ttusb-dec/ttusb_dec.c b/drivers/media/dvb/ttusb-dec/ttusb_dec.c index fefdc05e84ac..de5829b863fd 100644 --- a/drivers/media/dvb/ttusb-dec/ttusb_dec.c +++ b/drivers/media/dvb/ttusb-dec/ttusb_dec.c @@ -1275,7 +1275,7 @@ static int ttusb_dec_boot_dsp(struct ttusb_dec *dec) u8 b1[] = { 0x61 }; u8 *b; char idstring[21]; - u8 *firmware = NULL; + const u8 *firmware = NULL; size_t firmware_size = 0; u16 firmware_csum = 0; __be16 firmware_csum_ns; diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c index 77354ca6e8e9..dc93a882b385 100644 --- a/drivers/media/radio/radio-si470x.c +++ b/drivers/media/radio/radio-si470x.c @@ -24,6 +24,19 @@ /* + * User Notes: + * - USB Audio is provided by the alsa snd_usb_audio module. + * For listing you have to redirect the sound, for example using: + * arecord -D hw:1,0 -r96000 -c2 -f S16_LE | artsdsp aplay -B - + * - regarding module parameters in /sys/module/radio_si470x/parameters: + * the contents of read-only files (0444) are not updated, even if + * space, band and de are changed using private video controls + * - increase tune_timeout, if you often get -EIO errors + * - hw_freq_seek returns -EAGAIN, when timed out or band limit is reached + */ + + +/* * History: * 2008-01-12 Tobias Lorenz <tobias.lorenz@gmx.net> * Version 1.0.0 @@ -85,10 +98,14 @@ * Oliver Neukum <oliver@neukum.org> * Version 1.0.7 * - usb autosuspend support - * - unplugging fixed + * - unplugging fixed + * 2008-05-07 Tobias Lorenz <tobias.lorenz@gmx.net> + * Version 1.0.8 + * - hardware frequency seek support + * - afc indication + * - more safety checks, let si470x_get_freq return errno * * ToDo: - * - add seeking support * - add firmware download/update support * - RDS support: interrupt mode, instead of polling * - add LED status output (check if that's not already done in firmware) @@ -98,10 +115,10 @@ /* driver definitions */ #define DRIVER_AUTHOR "Tobias Lorenz <tobias.lorenz@gmx.net>" #define DRIVER_NAME "radio-si470x" -#define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 7) +#define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 8) #define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver" #define DRIVER_DESC "USB radio driver for Si470x FM Radio Receivers" -#define DRIVER_VERSION "1.0.7" +#define DRIVER_VERSION "1.0.8" /* kernel includes */ @@ -175,6 +192,11 @@ static unsigned int tune_timeout = 3000; module_param(tune_timeout, uint, 0); MODULE_PARM_DESC(tune_timeout, "Tune timeout: *3000*"); +/* Seek timeout */ +static unsigned int seek_timeout = 5000; +module_param(seek_timeout, uint, 0); +MODULE_PARM_DESC(seek_timeout, "Seek timeout: *5000*"); + /* RDS buffer blocks */ static unsigned int rds_buf = 100; module_param(rds_buf, uint, 0); @@ -425,7 +447,8 @@ struct si470x_device { /* driver management */ unsigned int users; - unsigned char disconnected; + unsigned char disconnected; + struct mutex disconnect_lock; /* Silabs internal registers (0..15) */ unsigned short registers[RADIO_REGISTER_NUM]; @@ -442,12 +465,6 @@ struct si470x_device { /* - * Lock to prevent kfree of data before all users have releases the device. - */ -static DEFINE_MUTEX(open_close_lock); - - -/* * The frequency is set in units of 62.5 Hz when using V4L2_TUNER_CAP_LOW, * 62.5 kHz otherwise. * The tuner is able to have a channel spacing of 50, 100 or 200 kHz. @@ -476,11 +493,11 @@ static int si470x_get_report(struct si470x_device *radio, void *buf, int size) USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, report[0], 2, buf, size, usb_timeout); + if (retval < 0) printk(KERN_WARNING DRIVER_NAME ": si470x_get_report: usb_control_msg returned %d\n", retval); - return retval; } @@ -499,11 +516,11 @@ static int si470x_set_report(struct si470x_device *radio, void *buf, int size) USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, report[0], 2, buf, size, usb_timeout); + if (retval < 0) printk(KERN_WARNING DRIVER_NAME ": si470x_set_report: usb_control_msg returned %d\n", retval); - return retval; } @@ -521,8 +538,7 @@ static int si470x_get_register(struct si470x_device *radio, int regnr) retval = si470x_get_report(radio, (void *) &buf, sizeof(buf)); if (retval >= 0) - radio->registers[regnr] = be16_to_cpu(get_unaligned( - (unsigned short *) &buf[1])); + radio->registers[regnr] = get_unaligned_be16(&buf[1]); return (retval < 0) ? -EINVAL : 0; } @@ -537,8 +553,7 @@ static int si470x_set_register(struct si470x_device *radio, int regnr) int retval; buf[0] = REGISTER_REPORT(regnr); - put_unaligned(cpu_to_be16(radio->registers[regnr]), - (unsigned short *) &buf[1]); + put_unaligned_be16(radio->registers[regnr], &buf[1]); retval = si470x_set_report(radio, (void *) &buf, sizeof(buf)); @@ -561,9 +576,8 @@ static int si470x_get_all_registers(struct si470x_device *radio) if (retval >= 0) for (regnr = 0; regnr < RADIO_REGISTER_NUM; regnr++) - radio->registers[regnr] = be16_to_cpu(get_unaligned( - (unsigned short *) - &buf[regnr * RADIO_REGISTER_SIZE + 1])); + radio->registers[regnr] = get_unaligned_be16( + &buf[regnr * RADIO_REGISTER_SIZE + 1]); return (retval < 0) ? -EINVAL : 0; } @@ -585,7 +599,7 @@ static int si470x_get_rds_registers(struct si470x_device *radio) usb_rcvintpipe(radio->usbdev, 1), (void *) &buf, sizeof(buf), &size, usb_timeout); if (size != sizeof(buf)) - printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: " + printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: " "return size differs: %d != %zu\n", size, sizeof(buf)); if (retval < 0) printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: " @@ -594,8 +608,8 @@ static int si470x_get_rds_registers(struct si470x_device *radio) if (retval >= 0) for (regnr = 0; regnr < RDS_REGISTER_NUM; regnr++) radio->registers[STATUSRSSI + regnr] = - be16_to_cpu(get_unaligned((unsigned short *) - &buf[regnr * RADIO_REGISTER_SIZE + 1])); + get_unaligned_be16( + &buf[regnr * RADIO_REGISTER_SIZE + 1]); return (retval < 0) ? -EINVAL : 0; } @@ -615,33 +629,39 @@ static int si470x_set_chan(struct si470x_device *radio, unsigned short chan) radio->registers[CHANNEL] |= CHANNEL_TUNE | chan; retval = si470x_set_register(radio, CHANNEL); if (retval < 0) - return retval; + goto done; - /* wait till seek operation has completed */ + /* wait till tune operation has completed */ timeout = jiffies + msecs_to_jiffies(tune_timeout); do { retval = si470x_get_register(radio, STATUSRSSI); if (retval < 0) - return retval; + goto stop; timed_out = time_after(jiffies, timeout); } while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) && (!timed_out)); + if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) + printk(KERN_WARNING DRIVER_NAME ": tune does not complete\n"); if (timed_out) printk(KERN_WARNING DRIVER_NAME - ": seek does not finish after %u ms\n", tune_timeout); + ": tune timed out after %u ms\n", tune_timeout); +stop: /* stop tuning */ radio->registers[CHANNEL] &= ~CHANNEL_TUNE; - return si470x_set_register(radio, CHANNEL); + retval = si470x_set_register(radio, CHANNEL); + +done: + return retval; } /* * si470x_get_freq - get the frequency */ -static unsigned int si470x_get_freq(struct si470x_device *radio) +static int si470x_get_freq(struct si470x_device *radio, unsigned int *freq) { - unsigned int spacing, band_bottom, freq; + unsigned int spacing, band_bottom; unsigned short chan; int retval; @@ -667,14 +687,12 @@ static unsigned int si470x_get_freq(struct si470x_device *radio) /* read channel */ retval = si470x_get_register(radio, READCHAN); - if (retval < 0) - return retval; chan = radio->registers[READCHAN] & READCHAN_READCHAN; /* Frequency (MHz) = Spacing (kHz) x Channel + Bottom of Band (MHz) */ - freq = chan * spacing + band_bottom; + *freq = chan * spacing + band_bottom; - return freq; + return retval; } @@ -714,6 +732,62 @@ static int si470x_set_freq(struct si470x_device *radio, unsigned int freq) /* + * si470x_set_seek - set seek + */ +static int si470x_set_seek(struct si470x_device *radio, + unsigned int wrap_around, unsigned int seek_upward) +{ + int retval = 0; + unsigned long timeout; + bool timed_out = 0; + + /* start seeking */ + radio->registers[POWERCFG] |= POWERCFG_SEEK; + if (wrap_around == 1) + radio->registers[POWERCFG] &= ~POWERCFG_SKMODE; + else + radio->registers[POWERCFG] |= POWERCFG_SKMODE; + if (seek_upward == 1) + radio->registers[POWERCFG] |= POWERCFG_SEEKUP; + else + radio->registers[POWERCFG] &= ~POWERCFG_SEEKUP; + retval = si470x_set_register(radio, POWERCFG); + if (retval < 0) + goto done; + + /* wait till seek operation has completed */ + timeout = jiffies + msecs_to_jiffies(seek_timeout); + do { + retval = si470x_get_register(radio, STATUSRSSI); + if (retval < 0) + goto stop; + timed_out = time_after(jiffies, timeout); + } while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) && + (!timed_out)); + if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) + printk(KERN_WARNING DRIVER_NAME ": seek does not complete\n"); + if (radio->registers[STATUSRSSI] & STATUSRSSI_SF) + printk(KERN_WARNING DRIVER_NAME + ": seek failed / band limit reached\n"); + if (timed_out) + printk(KERN_WARNING DRIVER_NAME + ": seek timed out after %u ms\n", seek_timeout); + +stop: + /* stop seeking */ + radio->registers[POWERCFG] &= ~POWERCFG_SEEK; + retval = si470x_set_register(radio, POWERCFG); + +done: + /* try again, if timed out */ + if ((retval == 0) && timed_out) + retval = -EAGAIN; + + return retval; +} + + +/* * si470x_start - switch on radio */ static int si470x_start(struct si470x_device *radio) @@ -725,27 +799,30 @@ static int si470x_start(struct si470x_device *radio) POWERCFG_DMUTE | POWERCFG_ENABLE | POWERCFG_RDSM; retval = si470x_set_register(radio, POWERCFG); if (retval < 0) - return retval; + goto done; /* sysconfig 1 */ radio->registers[SYSCONFIG1] = SYSCONFIG1_DE; retval = si470x_set_register(radio, SYSCONFIG1); if (retval < 0) - return retval; + goto done; /* sysconfig 2 */ radio->registers[SYSCONFIG2] = - (0x3f << 8) | /* SEEKTH */ - (band << 6) | /* BAND */ - (space << 4) | /* SPACE */ - 15; /* VOLUME (max) */ + (0x3f << 8) | /* SEEKTH */ + ((band << 6) & SYSCONFIG2_BAND) | /* BAND */ + ((space << 4) & SYSCONFIG2_SPACE) | /* SPACE */ + 15; /* VOLUME (max) */ retval = si470x_set_register(radio, SYSCONFIG2); if (retval < 0) - return retval; + goto done; /* reset last channel */ - return si470x_set_chan(radio, + retval = si470x_set_chan(radio, radio->registers[CHANNEL] & CHANNEL_CHAN); + +done: + return retval; } @@ -760,13 +837,16 @@ static int si470x_stop(struct si470x_device *radio) radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS; retval = si470x_set_register(radio, SYSCONFIG1); if (retval < 0) - return retval; + goto done; /* powercfg */ radio->registers[POWERCFG] &= ~POWERCFG_DMUTE; /* POWERCFG_ENABLE has to automatically go low */ radio->registers[POWERCFG] |= POWERCFG_ENABLE | POWERCFG_DISABLE; - return si470x_set_register(radio, POWERCFG); + retval = si470x_set_register(radio, POWERCFG); + +done: + return retval; } @@ -843,7 +923,7 @@ static void si470x_rds(struct si470x_device *radio) }; /* Fill the V4L2 RDS buffer */ - put_unaligned(cpu_to_le16(rds), (unsigned short *) &tmpbuf); + put_unaligned_le16(rds, &tmpbuf); tmpbuf[2] = blocknum; /* offset name */ tmpbuf[2] |= blocknum << 3; /* received offset */ if (bler > max_rds_errors) @@ -883,8 +963,9 @@ static void si470x_work(struct work_struct *work) struct si470x_device *radio = container_of(work, struct si470x_device, work.work); - if (radio->disconnected) - return; + /* safety checks */ + if (radio->disconnected) + return; if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0) return; @@ -917,11 +998,15 @@ static ssize_t si470x_fops_read(struct file *file, char __user *buf, /* block if no new data available */ while (radio->wr_index == radio->rd_index) { - if (file->f_flags & O_NONBLOCK) - return -EWOULDBLOCK; + if (file->f_flags & O_NONBLOCK) { + retval = -EWOULDBLOCK; + goto done; + } if (wait_event_interruptible(radio->read_queue, - radio->wr_index != radio->rd_index) < 0) - return -EINTR; + radio->wr_index != radio->rd_index) < 0) { + retval = -EINTR; + goto done; + } } /* calculate block count from byte count */ @@ -950,6 +1035,7 @@ static ssize_t si470x_fops_read(struct file *file, char __user *buf, } mutex_unlock(&radio->lock); +done: return retval; } @@ -961,6 +1047,7 @@ static unsigned int si470x_fops_poll(struct file *file, struct poll_table_struct *pts) { struct si470x_device *radio = video_get_drvdata(video_devdata(file)); + int retval = 0; /* switch on rds reception */ if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0) { @@ -972,9 +1059,9 @@ static unsigned int si470x_fops_poll(struct file *file, poll_wait(file, &radio->read_queue, pts); if (radio->rd_index != radio->wr_index) - return POLLIN | POLLRDNORM; + retval = POLLIN | POLLRDNORM; - return 0; + return retval; } @@ -991,17 +1078,18 @@ static int si470x_fops_open(struct inode *inode, struct file *file) retval = usb_autopm_get_interface(radio->intf); if (retval < 0) { radio->users--; - return -EIO; + retval = -EIO; + goto done; } if (radio->users == 1) { retval = si470x_start(radio); if (retval < 0) usb_autopm_put_interface(radio->intf); - return retval; } - return 0; +done: + return retval; } @@ -1011,20 +1099,23 @@ static int si470x_fops_open(struct inode *inode, struct file *file) static int si470x_fops_release(struct inode *inode, struct file *file) { struct si470x_device *radio = video_get_drvdata(video_devdata(file)); - int retval = 0; + int retval = 0; - if (!radio) - return -ENODEV; + /* safety check */ + if (!radio) { + retval = -ENODEV; + goto done; + } - mutex_lock(&open_close_lock); + mutex_lock(&radio->disconnect_lock); radio->users--; if (radio->users == 0) { - if (radio->disconnected) { - video_unregister_device(radio->videodev); - kfree(radio->buffer); - kfree(radio); - goto done; - } + if (radio->disconnected) { + video_unregister_device(radio->videodev); + kfree(radio->buffer); + kfree(radio); + goto unlock; + } /* stop rds reception */ cancel_delayed_work_sync(&radio->work); @@ -1036,9 +1127,11 @@ static int si470x_fops_release(struct inode *inode, struct file *file) usb_autopm_put_interface(radio->intf); } +unlock: + mutex_unlock(&radio->disconnect_lock); + done: - mutex_unlock(&open_close_lock); - return retval; + return retval; } @@ -1116,7 +1209,8 @@ static int si470x_vidioc_querycap(struct file *file, void *priv, strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card)); sprintf(capability->bus_info, "USB"); capability->version = DRIVER_KERNEL_VERSION; - capability->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO; + capability->capabilities = V4L2_CAP_HW_FREQ_SEEK | + V4L2_CAP_TUNER | V4L2_CAP_RADIO; return 0; } @@ -1125,7 +1219,7 @@ static int si470x_vidioc_querycap(struct file *file, void *priv, /* * si470x_vidioc_g_input - get input */ -static int si470x_vidioc_g_input(struct file *filp, void *priv, +static int si470x_vidioc_g_input(struct file *file, void *priv, unsigned int *i) { *i = 0; @@ -1137,12 +1231,18 @@ static int si470x_vidioc_g_input(struct file *filp, void *priv, /* * si470x_vidioc_s_input - set input */ -static int si470x_vidioc_s_input(struct file *filp, void *priv, unsigned int i) +static int si470x_vidioc_s_input(struct file *file, void *priv, unsigned int i) { + int retval = 0; + + /* safety checks */ if (i != 0) - return -EINVAL; + retval = -EINVAL; - return 0; + if (retval < 0) + printk(KERN_WARNING DRIVER_NAME + ": set input failed with %d\n", retval); + return retval; } @@ -1155,17 +1255,22 @@ static int si470x_vidioc_queryctrl(struct file *file, void *priv, unsigned char i; int retval = -EINVAL; + /* safety checks */ + if (!qc->id) + goto done; + for (i = 0; i < ARRAY_SIZE(si470x_v4l2_queryctrl); i++) { - if (qc->id && qc->id == si470x_v4l2_queryctrl[i].id) { + if (qc->id == si470x_v4l2_queryctrl[i].id) { memcpy(qc, &(si470x_v4l2_queryctrl[i]), sizeof(*qc)); retval = 0; break; } } + +done: if (retval < 0) printk(KERN_WARNING DRIVER_NAME - ": query control failed with %d\n", retval); - + ": query controls failed with %d\n", retval); return retval; } @@ -1177,9 +1282,13 @@ static int si470x_vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { struct si470x_device *radio = video_get_drvdata(video_devdata(file)); + int retval = 0; - if (radio->disconnected) - return -EIO; + /* safety checks */ + if (radio->disconnected) { + retval = -EIO; + goto done; + } switch (ctrl->id) { case V4L2_CID_AUDIO_VOLUME: @@ -1190,9 +1299,15 @@ static int si470x_vidioc_g_ctrl(struct file *file, void *priv, ctrl->value = ((radio->registers[POWERCFG] & POWERCFG_DMUTE) == 0) ? 1 : 0; break; + default: + retval = -EINVAL; } - return 0; +done: + if (retval < 0) + printk(KERN_WARNING DRIVER_NAME + ": get control failed with %d\n", retval); + return retval; } @@ -1203,10 +1318,13 @@ static int si470x_vidioc_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { struct si470x_device *radio = video_get_drvdata(video_devdata(file)); - int retval; + int retval = 0; - if (radio->disconnected) - return -EIO; + /* safety checks */ + if (radio->disconnected) { + retval = -EIO; + goto done; + } switch (ctrl->id) { case V4L2_CID_AUDIO_VOLUME: @@ -1224,10 +1342,11 @@ static int si470x_vidioc_s_ctrl(struct file *file, void *priv, default: retval = -EINVAL; } + +done: if (retval < 0) printk(KERN_WARNING DRIVER_NAME ": set control failed with %d\n", retval); - return retval; } @@ -1238,13 +1357,22 @@ static int si470x_vidioc_s_ctrl(struct file *file, void *priv, static int si470x_vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *audio) { - if (audio->index > 1) - return -EINVAL; + int retval = 0; + + /* safety checks */ + if (audio->index != 0) { + retval = -EINVAL; + goto done; + } strcpy(audio->name, "Radio"); audio->capability = V4L2_AUDCAP_STEREO; - return 0; +done: + if (retval < 0) + printk(KERN_WARNING DRIVER_NAME + ": get audio failed with %d\n", retval); + return retval; } @@ -1254,10 +1382,19 @@ static int si470x_vidioc_g_audio(struct file *file, void *priv, static int si470x_vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *audio) { - if (audio->index != 0) - return -EINVAL; + int retval = 0; - return 0; + /* safety checks */ + if (audio->index != 0) { + retval = -EINVAL; + goto done; + } + +done: + if (retval < 0) + printk(KERN_WARNING DRIVER_NAME + ": set audio failed with %d\n", retval); + return retval; } @@ -1268,20 +1405,23 @@ static int si470x_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *tuner) { struct si470x_device *radio = video_get_drvdata(video_devdata(file)); - int retval; + int retval = 0; - if (radio->disconnected) - return -EIO; - if (tuner->index > 0) - return -EINVAL; + /* safety checks */ + if (radio->disconnected) { + retval = -EIO; + goto done; + } + if ((tuner->index != 0) && (tuner->type != V4L2_TUNER_RADIO)) { + retval = -EINVAL; + goto done; + } - /* read status rssi */ retval = si470x_get_register(radio, STATUSRSSI); if (retval < 0) - return retval; + goto done; strcpy(tuner->name, "FM"); - tuner->type = V4L2_TUNER_RADIO; switch (band) { /* 0: 87.5 - 108 MHz (USA, Europe, default) */ default: @@ -1313,9 +1453,14 @@ static int si470x_vidioc_g_tuner(struct file *file, void *priv, * 0x0101; /* automatic frequency control: -1: freq to low, 1 freq to high */ - tuner->afc = 0; + /* AFCRL does only indicate that freq. differs, not if too low/high */ + tuner->afc = (radio->registers[STATUSRSSI] & STATUSRSSI_AFCRL) ? 1 : 0; - return 0; +done: + if (retval < 0) + printk(KERN_WARNING DRIVER_NAME + ": get tuner failed with %d\n", retval); + return retval; } @@ -1326,12 +1471,17 @@ static int si470x_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *tuner) { struct si470x_device *radio = video_get_drvdata(video_devdata(file)); - int retval; + int retval = 0; - if (radio->disconnected) - return -EIO; - if (tuner->index > 0) - return -EINVAL; + /* safety checks */ + if (radio->disconnected) { + retval = -EIO; + goto done; + } + if ((tuner->index != 0) && (tuner->type != V4L2_TUNER_RADIO)) { + retval = -EINVAL; + goto done; + } if (tuner->audmode == V4L2_TUNER_MODE_MONO) radio->registers[POWERCFG] |= POWERCFG_MONO; /* force mono */ @@ -1339,10 +1489,11 @@ static int si470x_vidioc_s_tuner(struct file *file, void *priv, radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */ retval = si470x_set_register(radio, POWERCFG); + +done: if (retval < 0) printk(KERN_WARNING DRIVER_NAME ": set tuner failed with %d\n", retval); - return retval; } @@ -1354,14 +1505,25 @@ static int si470x_vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *freq) { struct si470x_device *radio = video_get_drvdata(video_devdata(file)); + int retval = 0; - if (radio->disconnected) - return -EIO; + /* safety checks */ + if (radio->disconnected) { + retval = -EIO; + goto done; + } + if ((freq->tuner != 0) && (freq->type != V4L2_TUNER_RADIO)) { + retval = -EINVAL; + goto done; + } - freq->type = V4L2_TUNER_RADIO; - freq->frequency = si470x_get_freq(radio); + retval = si470x_get_freq(radio, &freq->frequency); - return 0; +done: + if (retval < 0) + printk(KERN_WARNING DRIVER_NAME + ": get frequency failed with %d\n", retval); + return retval; } @@ -1372,19 +1534,55 @@ static int si470x_vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *freq) { struct si470x_device *radio = video_get_drvdata(video_devdata(file)); - int retval; + int retval = 0; - if (radio->disconnected) - return -EIO; - if (freq->type != V4L2_TUNER_RADIO) - return -EINVAL; + /* safety checks */ + if (radio->disconnected) { + retval = -EIO; + goto done; + } + if ((freq->tuner != 0) && (freq->type != V4L2_TUNER_RADIO)) { + retval = -EINVAL; + goto done; + } retval = si470x_set_freq(radio, freq->frequency); + +done: if (retval < 0) printk(KERN_WARNING DRIVER_NAME ": set frequency failed with %d\n", retval); + return retval; +} - return 0; + +/* + * si470x_vidioc_s_hw_freq_seek - set hardware frequency seek + */ +static int si470x_vidioc_s_hw_freq_seek(struct file *file, void *priv, + struct v4l2_hw_freq_seek *seek) +{ + struct si470x_device *radio = video_get_drvdata(video_devdata(file)); + int retval = 0; + + /* safety checks */ + if (radio->disconnected) { + retval = -EIO; + goto done; + } + if ((seek->tuner != 0) && (seek->type != V4L2_TUNER_RADIO)) { + retval = -EINVAL; + goto done; + } + + retval = si470x_set_seek(radio, seek->wrap_around, seek->seek_upward); + +done: + if (retval < 0) + printk(KERN_WARNING DRIVER_NAME + ": set hardware frequency seek failed with %d\n", + retval); + return retval; } @@ -1408,6 +1606,7 @@ static struct video_device si470x_viddev_template = { .vidioc_s_tuner = si470x_vidioc_s_tuner, .vidioc_g_frequency = si470x_vidioc_g_frequency, .vidioc_s_frequency = si470x_vidioc_s_frequency, + .vidioc_s_hw_freq_seek = si470x_vidioc_s_hw_freq_seek, .owner = THIS_MODULE, }; @@ -1424,31 +1623,36 @@ static int si470x_usb_driver_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct si470x_device *radio; - int retval = -ENOMEM; + int retval = 0; - /* private data allocation */ + /* private data allocation and initialization */ radio = kzalloc(sizeof(struct si470x_device), GFP_KERNEL); - if (!radio) + if (!radio) { + retval = -ENOMEM; goto err_initial; + } + radio->users = 0; + radio->disconnected = 0; + radio->usbdev = interface_to_usbdev(intf); + radio->intf = intf; + mutex_init(&radio->disconnect_lock); + mutex_init(&radio->lock); - /* video device allocation */ + /* video device allocation and initialization */ radio->videodev = video_device_alloc(); - if (!radio->videodev) + if (!radio->videodev) { + retval = -ENOMEM; goto err_radio; - - /* initial configuration */ + } memcpy(radio->videodev, &si470x_viddev_template, sizeof(si470x_viddev_template)); - radio->users = 0; - radio->usbdev = interface_to_usbdev(intf); - radio->intf = intf; - mutex_init(&radio->lock); video_set_drvdata(radio->videodev, radio); /* show some infos about the specific device */ - retval = -EIO; - if (si470x_get_all_registers(radio) < 0) + if (si470x_get_all_registers(radio) < 0) { + retval = -EIO; goto err_all; + } printk(KERN_INFO DRIVER_NAME ": DeviceID=0x%4.4hx ChipID=0x%4.4hx\n", radio->registers[DEVICEID], radio->registers[CHIPID]); @@ -1474,8 +1678,10 @@ static int si470x_usb_driver_probe(struct usb_interface *intf, /* rds buffer allocation */ radio->buf_size = rds_buf * 3; radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL); - if (!radio->buffer) + if (!radio->buffer) { + retval = -EIO; goto err_all; + } /* rds buffer configuration */ radio->wr_index = 0; @@ -1487,6 +1693,7 @@ static int si470x_usb_driver_probe(struct usb_interface *intf, /* register video device */ if (video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr)) { + retval = -EIO; printk(KERN_WARNING DRIVER_NAME ": Could not register video device\n"); goto err_all; @@ -1546,16 +1753,16 @@ static void si470x_usb_driver_disconnect(struct usb_interface *intf) { struct si470x_device *radio = usb_get_intfdata(intf); - mutex_lock(&open_close_lock); - radio->disconnected = 1; + mutex_lock(&radio->disconnect_lock); + radio->disconnected = 1; cancel_delayed_work_sync(&radio->work); usb_set_intfdata(intf, NULL); - if (radio->users == 0) { - video_unregister_device(radio->videodev); - kfree(radio->buffer); - kfree(radio); - } - mutex_unlock(&open_close_lock); + if (radio->users == 0) { + video_unregister_device(radio->videodev); + kfree(radio->buffer); + kfree(radio); + } + mutex_unlock(&radio->disconnect_lock); } diff --git a/drivers/media/video/au0828/au0828-cards.c b/drivers/media/video/au0828/au0828-cards.c index a2a6983444fa..898e12395e7c 100644 --- a/drivers/media/video/au0828/au0828-cards.c +++ b/drivers/media/video/au0828/au0828-cards.c @@ -77,8 +77,14 @@ static void hauppauge_eeprom(struct au0828_dev *dev, u8 *eeprom_data) /* Make sure we support the board model */ switch (tv.model) { + case 72000: /* WinTV-HVR950q (Retail, IR, ATSC/QAM */ case 72001: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and basic analog video */ + case 72211: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and basic analog video */ + case 72221: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and basic analog video */ + case 72231: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and basic analog video */ + case 72241: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and basic analog video */ case 72301: /* WinTV-HVR850 (Retail, IR, ATSC and basic analog video */ + case 72500: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM */ break; default: printk(KERN_WARNING "%s: warning: " @@ -175,6 +181,18 @@ struct usb_device_id au0828_usb_id_table [] = { .driver_info = AU0828_BOARD_HAUPPAUGE_HVR850 }, { USB_DEVICE(0x0fe9, 0xd620), .driver_info = AU0828_BOARD_DVICO_FUSIONHDTV7 }, + { USB_DEVICE(0x2040, 0x7210), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x2040, 0x7217), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x2040, 0x721b), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x2040, 0x721f), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x2040, 0x7280), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x0fd9, 0x0008), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, { }, }; diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c index 8ef0424c26c4..1c56ae92ce74 100644 --- a/drivers/media/video/bt8xx/bttv-cards.c +++ b/drivers/media/video/bt8xx/bttv-cards.c @@ -3768,7 +3768,8 @@ static int terratec_active_radio_upgrade(struct bttv *btv) #define BTTV_ALT_DCLK 0x100000 #define BTTV_ALT_NCONFIG 0x800000 -static int __devinit pvr_altera_load(struct bttv *btv, u8 *micro, u32 microlen) +static int __devinit pvr_altera_load(struct bttv *btv, const u8 *micro, + u32 microlen) { u32 n; u8 bits; diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index 0165aac533bf..c4aa802494ff 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -2448,7 +2448,7 @@ pix_format_set_size (struct v4l2_pix_format * f, } } -static int bttv_g_fmt_cap(struct file *file, void *priv, +static int bttv_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct bttv_fh *fh = priv; @@ -2461,7 +2461,7 @@ static int bttv_g_fmt_cap(struct file *file, void *priv, return 0; } -static int bttv_g_fmt_overlay(struct file *file, void *priv, +static int bttv_g_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f) { struct bttv_fh *fh = priv; @@ -2472,7 +2472,7 @@ static int bttv_g_fmt_overlay(struct file *file, void *priv, return 0; } -static int bttv_try_fmt_cap(struct file *file, void *priv, +static int bttv_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { const struct bttv_format *fmt; @@ -2532,7 +2532,7 @@ static int bttv_try_fmt_cap(struct file *file, void *priv, return 0; } -static int bttv_try_fmt_overlay(struct file *file, void *priv, +static int bttv_try_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f) { struct bttv_fh *fh = priv; @@ -2542,7 +2542,7 @@ static int bttv_try_fmt_overlay(struct file *file, void *priv, /* adjust_crop */ 0); } -static int bttv_s_fmt_cap(struct file *file, void *priv, +static int bttv_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { int retval; @@ -2556,7 +2556,7 @@ static int bttv_s_fmt_cap(struct file *file, void *priv, if (0 != retval) return retval; - retval = bttv_try_fmt_cap(file, priv, f); + retval = bttv_try_fmt_vid_cap(file, priv, f); if (0 != retval) return retval; @@ -2591,7 +2591,7 @@ static int bttv_s_fmt_cap(struct file *file, void *priv, return 0; } -static int bttv_s_fmt_overlay(struct file *file, void *priv, +static int bttv_s_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f) { struct bttv_fh *fh = priv; @@ -2661,7 +2661,7 @@ static int bttv_querycap(struct file *file, void *priv, return 0; } -static int bttv_enum_fmt_vbi(struct file *file, void *priv, +static int bttv_enum_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (0 != f->index) @@ -2692,7 +2692,7 @@ static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f) return i; } -static int bttv_enum_fmt_cap(struct file *file, void *priv, +static int bttv_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { int rc = bttv_enum_fmt_cap_ovr(f); @@ -2703,7 +2703,7 @@ static int bttv_enum_fmt_cap(struct file *file, void *priv, return 0; } -static int bttv_enum_fmt_overlay(struct file *file, void *priv, +static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_fmtdesc *f) { int rc; @@ -3362,18 +3362,18 @@ static struct video_device bttv_video_template = .fops = &bttv_fops, .minor = -1, .vidioc_querycap = bttv_querycap, - .vidioc_enum_fmt_cap = bttv_enum_fmt_cap, - .vidioc_g_fmt_cap = bttv_g_fmt_cap, - .vidioc_try_fmt_cap = bttv_try_fmt_cap, - .vidioc_s_fmt_cap = bttv_s_fmt_cap, - .vidioc_enum_fmt_overlay = bttv_enum_fmt_overlay, - .vidioc_g_fmt_overlay = bttv_g_fmt_overlay, - .vidioc_try_fmt_overlay = bttv_try_fmt_overlay, - .vidioc_s_fmt_overlay = bttv_s_fmt_overlay, - .vidioc_enum_fmt_vbi = bttv_enum_fmt_vbi, - .vidioc_g_fmt_vbi = bttv_g_fmt_vbi, - .vidioc_try_fmt_vbi = bttv_try_fmt_vbi, - .vidioc_s_fmt_vbi = bttv_s_fmt_vbi, + .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap, + .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay, + .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay, + .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay, + .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay, + .vidioc_enum_fmt_vbi_cap = bttv_enum_fmt_vbi_cap, + .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap, + .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap, + .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap, .vidioc_g_audio = bttv_g_audio, .vidioc_s_audio = bttv_s_audio, .vidioc_cropcap = bttv_cropcap, diff --git a/drivers/media/video/bt8xx/bttv-i2c.c b/drivers/media/video/bt8xx/bttv-i2c.c index 4d5b8035e466..bcd2cd240a16 100644 --- a/drivers/media/video/bt8xx/bttv-i2c.c +++ b/drivers/media/video/bt8xx/bttv-i2c.c @@ -36,11 +36,6 @@ #include <linux/jiffies.h> #include <asm/io.h> -static struct i2c_algo_bit_data bttv_i2c_algo_bit_template; -static struct i2c_adapter bttv_i2c_adap_sw_template; -static struct i2c_adapter bttv_i2c_adap_hw_template; -static struct i2c_client bttv_i2c_client_template; - static int attach_inform(struct i2c_client *client); static int i2c_debug; @@ -104,7 +99,7 @@ static int bttv_bit_getsda(void *data) return state; } -static struct i2c_algo_bit_data bttv_i2c_algo_bit_template = { +static struct i2c_algo_bit_data __devinitdata bttv_i2c_algo_bit_template = { .setsda = bttv_bit_setsda, .setscl = bttv_bit_setscl, .getsda = bttv_bit_getsda, @@ -113,14 +108,6 @@ static struct i2c_algo_bit_data bttv_i2c_algo_bit_template = { .timeout = 200, }; -static struct i2c_adapter bttv_i2c_adap_sw_template = { - .owner = THIS_MODULE, - .class = I2C_CLASS_TV_ANALOG, - .name = "bttv", - .id = I2C_HW_B_BT848, - .client_register = attach_inform, -}; - /* ----------------------------------------------------------------------- */ /* I2C functions - hardware i2c */ @@ -270,20 +257,11 @@ static int bttv_i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int return retval; } -static struct i2c_algorithm bttv_algo = { +static const struct i2c_algorithm bttv_algo = { .master_xfer = bttv_i2c_xfer, .functionality = functionality, }; -static struct i2c_adapter bttv_i2c_adap_hw_template = { - .owner = THIS_MODULE, - .class = I2C_CLASS_TV_ANALOG, - .name = "bt878", - .id = I2C_HW_B_BT848 /* FIXME */, - .algo = &bttv_algo, - .client_register = attach_inform, -}; - /* ----------------------------------------------------------------------- */ /* I2C functions - common stuff */ @@ -332,10 +310,6 @@ void bttv_call_i2c_clients(struct bttv *btv, unsigned int cmd, void *arg) i2c_clients_command(&btv->c.i2c_adap, cmd, arg); } -static struct i2c_client bttv_i2c_client_template = { - .name = "bttv internal", -}; - /* read I2C */ int bttv_I2CRead(struct bttv *btv, unsigned char addr, char *probe_for) @@ -417,29 +391,34 @@ static void do_i2c_scan(char *name, struct i2c_client *c) /* init + register i2c algo-bit adapter */ int __devinit init_bttv_i2c(struct bttv *btv) { - memcpy(&btv->i2c_client, &bttv_i2c_client_template, - sizeof(bttv_i2c_client_template)); + strlcpy(btv->i2c_client.name, "bttv internal", I2C_NAME_SIZE); if (i2c_hw) btv->use_i2c_hw = 1; if (btv->use_i2c_hw) { /* bt878 */ - memcpy(&btv->c.i2c_adap, &bttv_i2c_adap_hw_template, - sizeof(bttv_i2c_adap_hw_template)); + strlcpy(btv->c.i2c_adap.name, "bt878", + sizeof(btv->c.i2c_adap.name)); + btv->c.i2c_adap.id = I2C_HW_B_BT848; /* FIXME */ + btv->c.i2c_adap.algo = &bttv_algo; } else { /* bt848 */ /* Prevents usage of invalid delay values */ if (i2c_udelay<5) i2c_udelay=5; - bttv_i2c_algo_bit_template.udelay=i2c_udelay; - memcpy(&btv->c.i2c_adap, &bttv_i2c_adap_sw_template, - sizeof(bttv_i2c_adap_sw_template)); + strlcpy(btv->c.i2c_adap.name, "bttv", + sizeof(btv->c.i2c_adap.name)); + btv->c.i2c_adap.id = I2C_HW_B_BT848; memcpy(&btv->i2c_algo, &bttv_i2c_algo_bit_template, sizeof(bttv_i2c_algo_bit_template)); + btv->i2c_algo.udelay = i2c_udelay; btv->i2c_algo.data = btv; btv->c.i2c_adap.algo_data = &btv->i2c_algo; } + btv->c.i2c_adap.owner = THIS_MODULE; + btv->c.i2c_adap.class = I2C_CLASS_TV_ANALOG; + btv->c.i2c_adap.client_register = attach_inform; btv->c.i2c_adap.dev.parent = &btv->c.pci->dev; snprintf(btv->c.i2c_adap.name, sizeof(btv->c.i2c_adap.name), diff --git a/drivers/media/video/bt8xx/bttv-vbi.c b/drivers/media/video/bt8xx/bttv-vbi.c index bfdbc469e30f..68f28e5fa040 100644 --- a/drivers/media/video/bt8xx/bttv-vbi.c +++ b/drivers/media/video/bt8xx/bttv-vbi.c @@ -303,7 +303,7 @@ static int try_fmt(struct v4l2_vbi_format *f, const struct bttv_tvnorm *tvnorm, return 0; } -int bttv_try_fmt_vbi(struct file *file, void *f, struct v4l2_format *frt) +int bttv_try_fmt_vbi_cap(struct file *file, void *f, struct v4l2_format *frt) { struct bttv_fh *fh = f; struct bttv *btv = fh->btv; @@ -321,7 +321,7 @@ int bttv_try_fmt_vbi(struct file *file, void *f, struct v4l2_format *frt) } -int bttv_s_fmt_vbi(struct file *file, void *f, struct v4l2_format *frt) +int bttv_s_fmt_vbi_cap(struct file *file, void *f, struct v4l2_format *frt) { struct bttv_fh *fh = f; struct bttv *btv = fh->btv; @@ -369,7 +369,7 @@ int bttv_s_fmt_vbi(struct file *file, void *f, struct v4l2_format *frt) } -int bttv_g_fmt_vbi(struct file *file, void *f, struct v4l2_format *frt) +int bttv_g_fmt_vbi_cap(struct file *file, void *f, struct v4l2_format *frt) { struct bttv_fh *fh = f; const struct bttv_tvnorm *tvnorm; diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h index 27da7b423275..955e6bcd8ae0 100644 --- a/drivers/media/video/bt8xx/bttvp.h +++ b/drivers/media/video/bt8xx/bttvp.h @@ -254,9 +254,9 @@ int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov, /* ---------------------------------------------------------- */ /* bttv-vbi.c */ -int bttv_try_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f); -int bttv_g_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f); -int bttv_s_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f); +int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f); +int bttv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f); +int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f); extern struct videobuf_queue_ops bttv_vbi_qops; diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c index 5195b1f3378a..d99453faaab7 100644 --- a/drivers/media/video/cafe_ccic.c +++ b/drivers/media/video/cafe_ccic.c @@ -1593,7 +1593,7 @@ static struct v4l2_pix_format cafe_def_pix_format = { .sizeimage = VGA_WIDTH*VGA_HEIGHT*2, }; -static int cafe_vidioc_enum_fmt_cap(struct file *filp, +static int cafe_vidioc_enum_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_fmtdesc *fmt) { struct cafe_camera *cam = priv; @@ -1608,7 +1608,7 @@ static int cafe_vidioc_enum_fmt_cap(struct file *filp, } -static int cafe_vidioc_try_fmt_cap (struct file *filp, void *priv, +static int cafe_vidioc_try_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_format *fmt) { struct cafe_camera *cam = priv; @@ -1620,7 +1620,7 @@ static int cafe_vidioc_try_fmt_cap (struct file *filp, void *priv, return ret; } -static int cafe_vidioc_s_fmt_cap(struct file *filp, void *priv, +static int cafe_vidioc_s_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_format *fmt) { struct cafe_camera *cam = priv; @@ -1635,7 +1635,7 @@ static int cafe_vidioc_s_fmt_cap(struct file *filp, void *priv, /* * See if the formatting works in principle. */ - ret = cafe_vidioc_try_fmt_cap(filp, priv, fmt); + ret = cafe_vidioc_try_fmt_vid_cap(filp, priv, fmt); if (ret) return ret; /* @@ -1670,7 +1670,7 @@ static int cafe_vidioc_s_fmt_cap(struct file *filp, void *priv, * The V4l2 spec wants us to be smarter, and actually get this from * the camera (and not mess with it at open time). Someday. */ -static int cafe_vidioc_g_fmt_cap(struct file *filp, void *priv, +static int cafe_vidioc_g_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_format *f) { struct cafe_camera *cam = priv; @@ -1780,10 +1780,10 @@ static struct video_device cafe_v4l_template = { .release = cafe_v4l_dev_release, .vidioc_querycap = cafe_vidioc_querycap, - .vidioc_enum_fmt_cap = cafe_vidioc_enum_fmt_cap, - .vidioc_try_fmt_cap = cafe_vidioc_try_fmt_cap, - .vidioc_s_fmt_cap = cafe_vidioc_s_fmt_cap, - .vidioc_g_fmt_cap = cafe_vidioc_g_fmt_cap, + .vidioc_enum_fmt_vid_cap = cafe_vidioc_enum_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = cafe_vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = cafe_vidioc_s_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = cafe_vidioc_g_fmt_vid_cap, .vidioc_enum_input = cafe_vidioc_enum_input, .vidioc_g_input = cafe_vidioc_g_input, .vidioc_s_input = cafe_vidioc_s_input, diff --git a/drivers/media/video/compat_ioctl32.c b/drivers/media/video/compat_ioctl32.c index cefd1381e8de..54de0cd482e9 100644 --- a/drivers/media/video/compat_ioctl32.c +++ b/drivers/media/video/compat_ioctl32.c @@ -884,6 +884,7 @@ long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) case VIDIOC_G_INPUT32: case VIDIOC_S_INPUT32: case VIDIOC_TRY_FMT32: + case VIDIOC_S_HW_FREQ_SEEK: ret = do_video_ioctl(file, cmd, arg); break; diff --git a/drivers/media/video/cx18/Kconfig b/drivers/media/video/cx18/Kconfig index 5f942690570c..9aefdc5ea79a 100644 --- a/drivers/media/video/cx18/Kconfig +++ b/drivers/media/video/cx18/Kconfig @@ -10,8 +10,8 @@ config VIDEO_CX18 select VIDEO_TVEEPROM select VIDEO_CX2341X select VIDEO_CS5345 - select DVB_S5H1409 - select MEDIA_TUNER_MXL5005S + select DVB_S5H1409 if !DVB_FE_CUSTOMISE + select MEDIA_TUNER_MXL5005S if !DVB_FE_CUSTOMISE ---help--- This is a video4linux driver for Conexant cx23418 based PCI combo video recorder devices. diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c index 9a26751615c6..faca43eb940f 100644 --- a/drivers/media/video/cx18/cx18-av-core.c +++ b/drivers/media/video/cx18/cx18-av-core.c @@ -69,6 +69,58 @@ int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 and_mask, or_value); } +int cx18_av_write_no_acfg(struct cx18 *cx, u16 addr, u8 value, int no_acfg_mask) +{ + int retval; + u32 saved_reg[8] = {0}; + + if (no_acfg_mask & CXADEC_NO_ACFG_AFE) { + saved_reg[0] = cx18_av_read4(cx, CXADEC_CHIP_CTRL); + saved_reg[1] = cx18_av_read4(cx, CXADEC_AFE_CTRL); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_PLL) { + saved_reg[2] = cx18_av_read4(cx, CXADEC_PLL_CTRL1); + saved_reg[3] = cx18_av_read4(cx, CXADEC_VID_PLL_FRAC); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_VID) { + saved_reg[4] = cx18_av_read4(cx, CXADEC_HORIZ_TIM_CTRL); + saved_reg[5] = cx18_av_read4(cx, CXADEC_VERT_TIM_CTRL); + saved_reg[6] = cx18_av_read4(cx, CXADEC_SRC_COMB_CFG); + saved_reg[7] = cx18_av_read4(cx, CXADEC_CHROMA_VBIOFF_CFG); + } + + retval = cx18_av_write(cx, addr, value); + + if (no_acfg_mask & CXADEC_NO_ACFG_AFE) { + cx18_av_write4(cx, CXADEC_CHIP_CTRL, saved_reg[0]); + cx18_av_write4(cx, CXADEC_AFE_CTRL, saved_reg[1]); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_PLL) { + cx18_av_write4(cx, CXADEC_PLL_CTRL1, saved_reg[2]); + cx18_av_write4(cx, CXADEC_VID_PLL_FRAC, saved_reg[3]); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_VID) { + cx18_av_write4(cx, CXADEC_HORIZ_TIM_CTRL, saved_reg[4]); + cx18_av_write4(cx, CXADEC_VERT_TIM_CTRL, saved_reg[5]); + cx18_av_write4(cx, CXADEC_SRC_COMB_CFG, saved_reg[6]); + cx18_av_write4(cx, CXADEC_CHROMA_VBIOFF_CFG, saved_reg[7]); + } + + return retval; +} + +int cx18_av_and_or_no_acfg(struct cx18 *cx, u16 addr, unsigned and_mask, + u8 or_value, int no_acfg_mask) +{ + return cx18_av_write_no_acfg(cx, addr, + (cx18_av_read(cx, addr) & and_mask) | + or_value, no_acfg_mask); +} + /* ----------------------------------------------------------------------- */ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, @@ -170,13 +222,15 @@ static void input_change(struct cx18 *cx) /* Follow step 8c and 8d of section 3.16 in the cx18_av datasheet */ if (std & V4L2_STD_SECAM) - cx18_av_write(cx, 0x402, 0); + cx18_av_write_no_acfg(cx, 0x402, 0, CXADEC_NO_ACFG_ALL); else { - cx18_av_write(cx, 0x402, 0x04); + cx18_av_write_no_acfg(cx, 0x402, 0x04, CXADEC_NO_ACFG_ALL); cx18_av_write(cx, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11); } - cx18_av_and_or(cx, 0x401, ~0x60, 0); - cx18_av_and_or(cx, 0x401, ~0x60, 0x60); + cx18_av_and_or_no_acfg(cx, 0x401, ~0x60, 0, + CXADEC_NO_ACFG_PLL | CXADEC_NO_ACFG_VID); + cx18_av_and_or_no_acfg(cx, 0x401, ~0x60, 0x60, + CXADEC_NO_ACFG_PLL | CXADEC_NO_ACFG_VID); if (std & V4L2_STD_525_60) { if (std == V4L2_STD_NTSC_M_JP) { @@ -228,7 +282,7 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, if ((vid_input & ~0xff0) || luma < CX18_AV_SVIDEO_LUMA1 || - luma > CX18_AV_SVIDEO_LUMA4 || + luma > CX18_AV_SVIDEO_LUMA8 || chroma < CX18_AV_SVIDEO_CHROMA4 || chroma > CX18_AV_SVIDEO_CHROMA8) { CX18_ERR("0x%04x is not a valid video input!\n", @@ -262,7 +316,8 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, cx18_av_write(cx, 0x103, reg); /* Set INPUT_MODE to Composite (0) or S-Video (1) */ - cx18_av_and_or(cx, 0x401, ~0x6, is_composite ? 0 : 0x02); + cx18_av_and_or_no_acfg(cx, 0x401, ~0x6, is_composite ? 0 : 0x02, + CXADEC_NO_ACFG_PLL | CXADEC_NO_ACFG_VID); /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */ cx18_av_and_or(cx, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0); /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */ @@ -318,12 +373,12 @@ static int set_v4lstd(struct cx18 *cx) This happens for example with the Yuan MPC622. */ if (fmt >= 4 && fmt < 8) { /* Set format to NTSC-M */ - cx18_av_and_or(cx, 0x400, ~0xf, 1); + cx18_av_and_or_no_acfg(cx, 0x400, ~0xf, 1, CXADEC_NO_ACFG_AFE); /* Turn off LCOMB */ cx18_av_and_or(cx, 0x47b, ~6, 0); } - cx18_av_and_or(cx, 0x400, ~0xf, fmt); - cx18_av_and_or(cx, 0x403, ~0x3, pal_m); + cx18_av_and_or_no_acfg(cx, 0x400, ~0xf, fmt, CXADEC_NO_ACFG_AFE); + cx18_av_and_or_no_acfg(cx, 0x403, ~0x3, pal_m, CXADEC_NO_ACFG_ALL); cx18_av_vbi_setup(cx); input_change(cx); return 0; diff --git a/drivers/media/video/cx18/cx18-av-core.h b/drivers/media/video/cx18/cx18-av-core.h index 786901d72e9a..c172823ce1d8 100644 --- a/drivers/media/video/cx18/cx18-av-core.h +++ b/drivers/media/video/cx18/cx18-av-core.h @@ -37,12 +37,16 @@ enum cx18_av_video_input { CX18_AV_COMPOSITE7, CX18_AV_COMPOSITE8, - /* S-Video inputs consist of one luma input (In1-In4) ORed with one + /* S-Video inputs consist of one luma input (In1-In8) ORed with one chroma input (In5-In8) */ CX18_AV_SVIDEO_LUMA1 = 0x10, CX18_AV_SVIDEO_LUMA2 = 0x20, CX18_AV_SVIDEO_LUMA3 = 0x30, CX18_AV_SVIDEO_LUMA4 = 0x40, + CX18_AV_SVIDEO_LUMA5 = 0x50, + CX18_AV_SVIDEO_LUMA6 = 0x60, + CX18_AV_SVIDEO_LUMA7 = 0x70, + CX18_AV_SVIDEO_LUMA8 = 0x80, CX18_AV_SVIDEO_CHROMA4 = 0x400, CX18_AV_SVIDEO_CHROMA5 = 0x500, CX18_AV_SVIDEO_CHROMA6 = 0x600, @@ -291,14 +295,24 @@ struct cx18_av_state { #define CXADEC_SELECT_AUDIO_STANDARD_FM 0xF9 /* FM radio */ #define CXADEC_SELECT_AUDIO_STANDARD_AUTO 0xFF /* Auto detect */ +/* Flags on what to preserve on write to 0x400-0x403 with cx18_av_.*_no_acfg()*/ +#define CXADEC_NO_ACFG_AFE 0x01 /* Preserve 0x100-0x107 */ +#define CXADEC_NO_ACFG_PLL 0x02 /* Preserve 0x108-0x10f */ +#define CXADEC_NO_ACFG_VID 0x04 /* Preserve 0x470-0x47f */ +#define CXADEC_NO_ACFG_ALL 0x07 + /* ----------------------------------------------------------------------- */ /* cx18_av-core.c */ int cx18_av_write(struct cx18 *cx, u16 addr, u8 value); int cx18_av_write4(struct cx18 *cx, u16 addr, u32 value); +int cx18_av_write_no_acfg(struct cx18 *cx, u16 addr, u8 value, + int no_acfg_mask); u8 cx18_av_read(struct cx18 *cx, u16 addr); u32 cx18_av_read4(struct cx18 *cx, u16 addr); int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned mask, u8 value); int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 mask, u32 value); +int cx18_av_and_or_no_acfg(struct cx18 *cx, u16 addr, unsigned mask, u8 value, + int no_acfg_mask); int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg); /* ----------------------------------------------------------------------- */ diff --git a/drivers/media/video/cx18/cx18-cards.c b/drivers/media/video/cx18/cx18-cards.c index baccd079243d..456fc924cf8c 100644 --- a/drivers/media/video/cx18/cx18-cards.c +++ b/drivers/media/video/cx18/cx18-cards.c @@ -23,9 +23,12 @@ #include "cx18-driver.h" #include "cx18-cards.h" +#include "cx18-av-core.h" #include "cx18-i2c.h" #include <media/cs5345.h> +#define V4L2_STD_PAL_SECAM (V4L2_STD_PAL|V4L2_STD_SECAM) + /********************** card configuration *******************************/ /* usual i2c tuner addresses to probe */ @@ -54,22 +57,22 @@ static const struct cx18_card cx18_card_hvr1600_esmt = { .hw_all = CX18_HW_TVEEPROM | CX18_HW_TUNER | CX18_HW_CS5345 | CX18_HW_DVB, .video_inputs = { - { CX18_CARD_INPUT_VID_TUNER, 0, CX23418_COMPOSITE7 }, - { CX18_CARD_INPUT_SVIDEO1, 1, CX23418_SVIDEO1 }, - { CX18_CARD_INPUT_COMPOSITE1, 1, CX23418_COMPOSITE3 }, - { CX18_CARD_INPUT_SVIDEO2, 2, CX23418_SVIDEO2 }, - { CX18_CARD_INPUT_COMPOSITE2, 2, CX23418_COMPOSITE4 }, + { CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE7 }, + { CX18_CARD_INPUT_SVIDEO1, 1, CX18_AV_SVIDEO1 }, + { CX18_CARD_INPUT_COMPOSITE1, 1, CX18_AV_COMPOSITE3 }, + { CX18_CARD_INPUT_SVIDEO2, 2, CX18_AV_SVIDEO2 }, + { CX18_CARD_INPUT_COMPOSITE2, 2, CX18_AV_COMPOSITE4 }, }, .audio_inputs = { { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO8, CS5345_IN_1 | CS5345_MCLK_1_5 }, + CX18_AV_AUDIO8, CS5345_IN_1 | CS5345_MCLK_1_5 }, { CX18_CARD_INPUT_LINE_IN1, - CX23418_AUDIO_SERIAL, CS5345_IN_2 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_2 }, { CX18_CARD_INPUT_LINE_IN2, - CX23418_AUDIO_SERIAL, CS5345_IN_2 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_3 }, }, .radio_input = { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO_SERIAL, 0 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_4 }, .ddr = { /* ESMT M13S128324A-5B memory */ .chip_config = 0x003, @@ -81,6 +84,11 @@ static const struct cx18_card cx18_card_hvr1600_esmt = { }, .gpio_init.initial_value = 0x3001, .gpio_init.direction = 0x3001, + .gpio_i2c_slave_reset = { + .active_lo_mask = 0x3001, + .msecs_asserted = 10, + .msecs_recovery = 40, + }, .i2c = &cx18_i2c_std, }; @@ -94,22 +102,22 @@ static const struct cx18_card cx18_card_hvr1600_samsung = { .hw_all = CX18_HW_TVEEPROM | CX18_HW_TUNER | CX18_HW_CS5345 | CX18_HW_DVB, .video_inputs = { - { CX18_CARD_INPUT_VID_TUNER, 0, CX23418_COMPOSITE7 }, - { CX18_CARD_INPUT_SVIDEO1, 1, CX23418_SVIDEO1 }, - { CX18_CARD_INPUT_COMPOSITE1, 1, CX23418_COMPOSITE3 }, - { CX18_CARD_INPUT_SVIDEO2, 2, CX23418_SVIDEO2 }, - { CX18_CARD_INPUT_COMPOSITE2, 2, CX23418_COMPOSITE4 }, + { CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE7 }, + { CX18_CARD_INPUT_SVIDEO1, 1, CX18_AV_SVIDEO1 }, + { CX18_CARD_INPUT_COMPOSITE1, 1, CX18_AV_COMPOSITE3 }, + { CX18_CARD_INPUT_SVIDEO2, 2, CX18_AV_SVIDEO2 }, + { CX18_CARD_INPUT_COMPOSITE2, 2, CX18_AV_COMPOSITE4 }, }, .audio_inputs = { { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO8, CS5345_IN_1 | CS5345_MCLK_1_5 }, + CX18_AV_AUDIO8, CS5345_IN_1 | CS5345_MCLK_1_5 }, { CX18_CARD_INPUT_LINE_IN1, - CX23418_AUDIO_SERIAL, CS5345_IN_2 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_2 }, { CX18_CARD_INPUT_LINE_IN2, - CX23418_AUDIO_SERIAL, CS5345_IN_2 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_3 }, }, .radio_input = { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO_SERIAL, 0 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_4 }, .ddr = { /* Samsung K4D263238G-VC33 memory */ .chip_config = 0x003, @@ -121,6 +129,11 @@ static const struct cx18_card cx18_card_hvr1600_samsung = { }, .gpio_init.initial_value = 0x3001, .gpio_init.direction = 0x3001, + .gpio_i2c_slave_reset = { + .active_lo_mask = 0x3001, + .msecs_asserted = 10, + .msecs_recovery = 40, + }, .i2c = &cx18_i2c_std, }; @@ -141,19 +154,19 @@ static const struct cx18_card cx18_card_h900 = { .hw_audio_ctrl = CX18_HW_CX23418, .hw_all = CX18_HW_TUNER, .video_inputs = { - { CX18_CARD_INPUT_VID_TUNER, 0, CX23418_COMPOSITE2 }, + { CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE2 }, { CX18_CARD_INPUT_SVIDEO1, 1, - CX23418_SVIDEO_LUMA3 | CX23418_SVIDEO_CHROMA4 }, - { CX18_CARD_INPUT_COMPOSITE1, 1, CX23418_COMPOSITE1 }, + CX18_AV_SVIDEO_LUMA3 | CX18_AV_SVIDEO_CHROMA4 }, + { CX18_CARD_INPUT_COMPOSITE1, 1, CX18_AV_COMPOSITE1 }, }, .audio_inputs = { { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO8, 0 }, + CX18_AV_AUDIO8, 0 }, { CX18_CARD_INPUT_LINE_IN1, - CX23418_AUDIO_SERIAL, 0 }, + CX18_AV_AUDIO_SERIAL, 0 }, }, .radio_input = { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO_SERIAL, 0 }, + CX18_AV_AUDIO_SERIAL, 0 }, .tuners = { { .std = V4L2_STD_ALL, .tuner = TUNER_XC2028 }, }, @@ -183,23 +196,26 @@ static const struct cx18_card_pci_info cx18_pci_mpc718[] = { static const struct cx18_card cx18_card_mpc718 = { .type = CX18_CARD_YUAN_MPC718, .name = "Yuan MPC718", - .comment = "Not yet supported!\n", - .v4l2_capabilities = 0, + .comment = "Some Composite and S-Video inputs are currently working.\n", + .v4l2_capabilities = CX18_CAP_ENCODER, .hw_audio_ctrl = CX18_HW_CX23418, .hw_all = CX18_HW_TUNER, .video_inputs = { - { CX18_CARD_INPUT_VID_TUNER, 0, CX23418_COMPOSITE7 }, - { CX18_CARD_INPUT_SVIDEO1, 1, CX23418_SVIDEO1 }, - { CX18_CARD_INPUT_COMPOSITE1, 1, CX23418_COMPOSITE3 }, + { CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE2 }, + { CX18_CARD_INPUT_SVIDEO1, 1, + CX18_AV_SVIDEO_LUMA3 | CX18_AV_SVIDEO_CHROMA4 }, + { CX18_CARD_INPUT_COMPOSITE1, 1, CX18_AV_COMPOSITE1 }, + { CX18_CARD_INPUT_SVIDEO2, 2, + CX18_AV_SVIDEO_LUMA7 | CX18_AV_SVIDEO_CHROMA8 }, + { CX18_CARD_INPUT_COMPOSITE2, 2, CX18_AV_COMPOSITE6 }, + { CX18_CARD_INPUT_COMPOSITE3, 2, CX18_AV_COMPOSITE3 }, }, .audio_inputs = { - { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO8, 0 }, - { CX18_CARD_INPUT_LINE_IN1, - CX23418_AUDIO_SERIAL, 0 }, + { CX18_CARD_INPUT_AUD_TUNER, CX18_AV_AUDIO5, 0 }, + { CX18_CARD_INPUT_LINE_IN1, CX18_AV_AUDIO_SERIAL, 0 }, + { CX18_CARD_INPUT_LINE_IN2, CX18_AV_AUDIO_SERIAL, 0 }, }, - .radio_input = { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO_SERIAL, 0 }, + .radio_input = { CX18_CARD_INPUT_AUD_TUNER, CX18_AV_AUDIO_SERIAL, 0 }, .tuners = { /* XC3028 tuner */ { .std = V4L2_STD_ALL, .tuner = TUNER_XC2028 }, @@ -218,11 +234,65 @@ static const struct cx18_card cx18_card_mpc718 = { .i2c = &cx18_i2c_std, }; +/* ------------------------------------------------------------------------- */ + +/* Conexant Raptor PAL/SECAM: note that this card is analog only! */ + +static const struct cx18_card_pci_info cx18_pci_cnxt_raptor_pal[] = { + { PCI_DEVICE_ID_CX23418, CX18_PCI_ID_CONEXANT, 0x0009 }, + { 0, 0, 0 } +}; + +static const struct cx18_card cx18_card_cnxt_raptor_pal = { + .type = CX18_CARD_CNXT_RAPTOR_PAL, + .name = "Conexant Raptor PAL/SECAM", + .comment = "VBI is not yet supported\n", + .v4l2_capabilities = CX18_CAP_ENCODER, + .hw_audio_ctrl = CX18_HW_CX23418, + .hw_muxer = CX18_HW_GPIO, + .hw_all = CX18_HW_TUNER | CX18_HW_GPIO, + .video_inputs = { + { CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE2 }, + { CX18_CARD_INPUT_SVIDEO1, 1, + CX18_AV_SVIDEO_LUMA3 | CX18_AV_SVIDEO_CHROMA4 }, + { CX18_CARD_INPUT_COMPOSITE1, 1, CX18_AV_COMPOSITE1 }, + { CX18_CARD_INPUT_SVIDEO2, 2, + CX18_AV_SVIDEO_LUMA7 | CX18_AV_SVIDEO_CHROMA8 }, + { CX18_CARD_INPUT_COMPOSITE2, 2, CX18_AV_COMPOSITE6 }, + }, + .audio_inputs = { + { CX18_CARD_INPUT_AUD_TUNER, CX18_AV_AUDIO_SERIAL, 1 }, + { CX18_CARD_INPUT_LINE_IN1, CX18_AV_AUDIO_SERIAL, 0 }, + { CX18_CARD_INPUT_LINE_IN2, CX18_AV_AUDIO_SERIAL, 0 }, + }, + .tuners = { + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, + }, + .radio_input = { CX18_CARD_INPUT_AUD_TUNER, CX18_AV_AUDIO_SERIAL, 0 }, + .ddr = { + /* MT 46V16M16 memory */ + .chip_config = 0x50306, + .refresh = 0x753, + .timing1 = 0x33220953, + .timing2 = 0x09, + .tune_lane = 0, + .initial_emrs = 0, + }, + .gpio_init.initial_value = 0x02, + .gpio_init.direction = 0x02, + .gpio_audio_input = { .mask = 0x02, .tuner = 0x02, .linein = 0x00 }, + .pci_list = cx18_pci_cnxt_raptor_pal, + .i2c = &cx18_i2c_std, +}; + +/* ------------------------------------------------------------------------- */ + static const struct cx18_card *cx18_card_list[] = { &cx18_card_hvr1600_esmt, &cx18_card_hvr1600_samsung, &cx18_card_h900, &cx18_card_mpc718, + &cx18_card_cnxt_raptor_pal, }; const struct cx18_card *cx18_get_card(u16 index) diff --git a/drivers/media/video/cx18/cx18-cards.h b/drivers/media/video/cx18/cx18-cards.h index bccb67f0db16..dc283d756907 100644 --- a/drivers/media/video/cx18/cx18-cards.h +++ b/drivers/media/video/cx18/cx18-cards.h @@ -36,36 +36,6 @@ #define CX18_CARD_INPUT_COMPOSITE2 5 #define CX18_CARD_INPUT_COMPOSITE3 6 -enum cx34180_video_input { - /* Composite video inputs In1-In8 */ - CX23418_COMPOSITE1 = 1, - CX23418_COMPOSITE2, - CX23418_COMPOSITE3, - CX23418_COMPOSITE4, - CX23418_COMPOSITE5, - CX23418_COMPOSITE6, - CX23418_COMPOSITE7, - CX23418_COMPOSITE8, - - /* S-Video inputs consist of one luma input (In1-In4) ORed with one - chroma input (In5-In8) */ - CX23418_SVIDEO_LUMA1 = 0x10, - CX23418_SVIDEO_LUMA2 = 0x20, - CX23418_SVIDEO_LUMA3 = 0x30, - CX23418_SVIDEO_LUMA4 = 0x40, - CX23418_SVIDEO_CHROMA4 = 0x400, - CX23418_SVIDEO_CHROMA5 = 0x500, - CX23418_SVIDEO_CHROMA6 = 0x600, - CX23418_SVIDEO_CHROMA7 = 0x700, - CX23418_SVIDEO_CHROMA8 = 0x800, - - /* S-Video aliases for common luma/chroma combinations */ - CX23418_SVIDEO1 = 0x510, - CX23418_SVIDEO2 = 0x620, - CX23418_SVIDEO3 = 0x730, - CX23418_SVIDEO4 = 0x840, -}; - /* audio inputs */ #define CX18_CARD_INPUT_AUD_TUNER 1 #define CX18_CARD_INPUT_LINE_IN1 2 @@ -75,16 +45,6 @@ enum cx34180_video_input { #define CX18_CARD_MAX_AUDIO_INPUTS 3 #define CX18_CARD_MAX_TUNERS 2 -enum cx23418_audio_input { - /* Audio inputs: serial or In4-In8 */ - CX23418_AUDIO_SERIAL, - CX23418_AUDIO4 = 4, - CX23418_AUDIO5, - CX23418_AUDIO6, - CX23418_AUDIO7, - CX23418_AUDIO8, -}; - /* V4L2 capability aliases */ #define CX18_CAP_ENCODER (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | \ V4L2_CAP_AUDIO | V4L2_CAP_READWRITE) @@ -118,6 +78,20 @@ struct cx18_gpio_init { /* set initial GPIO DIR and OUT values */ u32 initial_value; }; +struct cx18_gpio_i2c_slave_reset { + u32 active_lo_mask; /* GPIO outputs that reset i2c chips when low */ + u32 active_hi_mask; /* GPIO outputs that reset i2c chips when high */ + int msecs_asserted; /* time period reset must remain asserted */ + int msecs_recovery; /* time after deassert for chips to be ready */ +}; + +struct cx18_gpio_audio_input { /* select tuner/line in input */ + u32 mask; /* leave to 0 if not supported */ + u32 tuner; + u32 linein; + u32 radio; +}; + struct cx18_card_tuner { v4l2_std_id std; /* standard for which the tuner is suitable */ int tuner; /* tuner ID (from tuner.h) */ @@ -154,7 +128,9 @@ struct cx18_card { /* GPIO card-specific settings */ u8 xceive_pin; /* XCeive tuner GPIO reset pin */ - struct cx18_gpio_init gpio_init; + struct cx18_gpio_init gpio_init; + struct cx18_gpio_i2c_slave_reset gpio_i2c_slave_reset; + struct cx18_gpio_audio_input gpio_audio_input; struct cx18_card_tuner tuners[CX18_CARD_MAX_TUNERS]; struct cx18_card_tuner_i2c *i2c; diff --git a/drivers/media/video/cx18/cx18-controls.c b/drivers/media/video/cx18/cx18-controls.c index 87cf41021665..855313359370 100644 --- a/drivers/media/video/cx18/cx18-controls.c +++ b/drivers/media/video/cx18/cx18-controls.c @@ -51,12 +51,11 @@ static const u32 *ctrl_classes[] = { NULL }; -static int cx18_queryctrl(struct cx18 *cx, struct v4l2_queryctrl *qctrl) +int cx18_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl) { + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; const char *name; - CX18_DEBUG_IOCTL("VIDIOC_QUERYCTRL(%08x)\n", qctrl->id); - qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id); if (qctrl->id == 0) return -EINVAL; @@ -91,20 +90,26 @@ static int cx18_queryctrl(struct cx18 *cx, struct v4l2_queryctrl *qctrl) return 0; } -static int cx18_querymenu(struct cx18 *cx, struct v4l2_querymenu *qmenu) +int cx18_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu) { + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; struct v4l2_queryctrl qctrl; qctrl.id = qmenu->id; - cx18_queryctrl(cx, &qctrl); - return v4l2_ctrl_query_menu(qmenu, &qctrl, cx2341x_ctrl_get_menu(qmenu->id)); + cx18_queryctrl(file, fh, &qctrl); + return v4l2_ctrl_query_menu(qmenu, &qctrl, + cx2341x_ctrl_get_menu(&cx->params, qmenu->id)); } -static int cx18_s_ctrl(struct cx18 *cx, struct v4l2_control *vctrl) +int cx18_s_ctrl(struct file *file, void *fh, struct v4l2_control *vctrl) { - s32 v = vctrl->value; + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + int ret; - CX18_DEBUG_IOCTL("VIDIOC_S_CTRL(%08x, %x)\n", vctrl->id, v); + ret = v4l2_prio_check(&cx->prio, &id->prio); + if (ret) + return ret; switch (vctrl->id) { /* Standard V4L2 controls */ @@ -123,15 +128,15 @@ static int cx18_s_ctrl(struct cx18 *cx, struct v4l2_control *vctrl) return cx18_i2c_hw(cx, cx->card->hw_audio_ctrl, VIDIOC_S_CTRL, vctrl); default: - CX18_DEBUG_IOCTL("invalid control %x\n", vctrl->id); + CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id); return -EINVAL; } return 0; } -static int cx18_g_ctrl(struct cx18 *cx, struct v4l2_control *vctrl) +int cx18_g_ctrl(struct file *file, void *fh, struct v4l2_control *vctrl) { - CX18_DEBUG_IOCTL("VIDIOC_G_CTRL(%08x)\n", vctrl->id); + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; switch (vctrl->id) { /* Standard V4L2 controls */ @@ -149,7 +154,7 @@ static int cx18_g_ctrl(struct cx18 *cx, struct v4l2_control *vctrl) case V4L2_CID_AUDIO_LOUDNESS: return cx18_i2c_hw(cx, cx->card->hw_audio_ctrl, VIDIOC_G_CTRL, vctrl); default: - CX18_DEBUG_IOCTL("invalid control %x\n", vctrl->id); + CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id); return -EINVAL; } return 0; @@ -194,113 +199,97 @@ static int cx18_setup_vbi_fmt(struct cx18 *cx, enum v4l2_mpeg_stream_vbi_fmt fmt return 0; } -int cx18_control_ioctls(struct cx18 *cx, unsigned int cmd, void *arg) +int cx18_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) { + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; struct v4l2_control ctrl; - switch (cmd) { - case VIDIOC_QUERYMENU: - CX18_DEBUG_IOCTL("VIDIOC_QUERYMENU\n"); - return cx18_querymenu(cx, arg); - - case VIDIOC_QUERYCTRL: - return cx18_queryctrl(cx, arg); - - case VIDIOC_S_CTRL: - return cx18_s_ctrl(cx, arg); - - case VIDIOC_G_CTRL: - return cx18_g_ctrl(cx, arg); - - case VIDIOC_S_EXT_CTRLS: - { - struct v4l2_ext_controls *c = arg; - - if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { - int i; - int err = 0; - - for (i = 0; i < c->count; i++) { - ctrl.id = c->controls[i].id; - ctrl.value = c->controls[i].value; - err = cx18_s_ctrl(cx, &ctrl); - c->controls[i].value = ctrl.value; - if (err) { - c->error_idx = i; - break; - } + if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { + int i; + int err = 0; + + for (i = 0; i < c->count; i++) { + ctrl.id = c->controls[i].id; + ctrl.value = c->controls[i].value; + err = cx18_g_ctrl(file, fh, &ctrl); + c->controls[i].value = ctrl.value; + if (err) { + c->error_idx = i; + break; } - return err; } - CX18_DEBUG_IOCTL("VIDIOC_S_EXT_CTRLS\n"); - if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) { - struct cx2341x_mpeg_params p = cx->params; - int err = cx2341x_ext_ctrls(&p, atomic_read(&cx->ana_capturing), arg, cmd); + return err; + } + if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) + return cx2341x_ext_ctrls(&cx->params, 0, c, VIDIOC_G_EXT_CTRLS); + return -EINVAL; +} - if (err) - return err; +int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + int ret; + struct v4l2_control ctrl; - if (p.video_encoding != cx->params.video_encoding) { - int is_mpeg1 = p.video_encoding == - V4L2_MPEG_VIDEO_ENCODING_MPEG_1; - struct v4l2_format fmt; + ret = v4l2_prio_check(&cx->prio, &id->prio); + if (ret) + return ret; - /* fix videodecoder resolution */ - fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - fmt.fmt.pix.width = cx->params.width / (is_mpeg1 ? 2 : 1); - fmt.fmt.pix.height = cx->params.height; - cx18_av_cmd(cx, VIDIOC_S_FMT, &fmt); + if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { + int i; + int err = 0; + + for (i = 0; i < c->count; i++) { + ctrl.id = c->controls[i].id; + ctrl.value = c->controls[i].value; + err = cx18_s_ctrl(file, fh, &ctrl); + c->controls[i].value = ctrl.value; + if (err) { + c->error_idx = i; + break; } - err = cx2341x_update(cx, cx18_api_func, &cx->params, &p); - if (!err && cx->params.stream_vbi_fmt != p.stream_vbi_fmt) - err = cx18_setup_vbi_fmt(cx, p.stream_vbi_fmt); - cx->params = p; - cx->dualwatch_stereo_mode = p.audio_properties & 0x0300; - cx18_audio_set_audio_clock_freq(cx, p.audio_properties & 0x03); - return err; } - return -EINVAL; + return err; } + if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) { + struct cx2341x_mpeg_params p = cx->params; + int err = cx2341x_ext_ctrls(&p, atomic_read(&cx->ana_capturing), + c, VIDIOC_S_EXT_CTRLS); - case VIDIOC_G_EXT_CTRLS: - { - struct v4l2_ext_controls *c = arg; - - if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { - int i; - int err = 0; - - for (i = 0; i < c->count; i++) { - ctrl.id = c->controls[i].id; - ctrl.value = c->controls[i].value; - err = cx18_g_ctrl(cx, &ctrl); - c->controls[i].value = ctrl.value; - if (err) { - c->error_idx = i; - break; - } - } + if (err) return err; + + if (p.video_encoding != cx->params.video_encoding) { + int is_mpeg1 = p.video_encoding == + V4L2_MPEG_VIDEO_ENCODING_MPEG_1; + struct v4l2_format fmt; + + /* fix videodecoder resolution */ + fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + fmt.fmt.pix.width = cx->params.width + / (is_mpeg1 ? 2 : 1); + fmt.fmt.pix.height = cx->params.height; + cx18_av_cmd(cx, VIDIOC_S_FMT, &fmt); } - CX18_DEBUG_IOCTL("VIDIOC_G_EXT_CTRLS\n"); - if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) - return cx2341x_ext_ctrls(&cx->params, 0, arg, cmd); - return -EINVAL; + err = cx2341x_update(cx, cx18_api_func, &cx->params, &p); + if (!err && cx->params.stream_vbi_fmt != p.stream_vbi_fmt) + err = cx18_setup_vbi_fmt(cx, p.stream_vbi_fmt); + cx->params = p; + cx->dualwatch_stereo_mode = p.audio_properties & 0x0300; + cx18_audio_set_audio_clock_freq(cx, p.audio_properties & 0x03); + return err; } + return -EINVAL; +} - case VIDIOC_TRY_EXT_CTRLS: - { - struct v4l2_ext_controls *c = arg; - - CX18_DEBUG_IOCTL("VIDIOC_TRY_EXT_CTRLS\n"); - if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) - return cx2341x_ext_ctrls(&cx->params, - atomic_read(&cx->ana_capturing), arg, cmd); - return -EINVAL; - } +int cx18_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - default: - return -EINVAL; - } - return 0; + if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) + return cx2341x_ext_ctrls(&cx->params, + atomic_read(&cx->ana_capturing), + c, VIDIOC_TRY_EXT_CTRLS); + return -EINVAL; } diff --git a/drivers/media/video/cx18/cx18-controls.h b/drivers/media/video/cx18/cx18-controls.h index 6e985cf422a0..81b8996e5860 100644 --- a/drivers/media/video/cx18/cx18-controls.h +++ b/drivers/media/video/cx18/cx18-controls.h @@ -21,4 +21,11 @@ * 02111-1307 USA */ -int cx18_control_ioctls(struct cx18 *cx, unsigned int cmd, void *arg); +int cx18_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *a); +int cx18_g_ctrl(struct file *file, void *fh, struct v4l2_control *a); +int cx18_s_ctrl(struct file *file, void *fh, struct v4l2_control *a); +int cx18_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *a); +int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *a); +int cx18_try_ext_ctrls(struct file *file, void *fh, + struct v4l2_ext_controls *a); +int cx18_querymenu(struct file *file, void *fh, struct v4l2_querymenu *a); diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 2b810bb2a4c7..71bb04ab91d7 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -120,6 +120,7 @@ MODULE_PARM_DESC(cardtype, "\t\t\t 2 = Hauppauge HVR 1600 (Samsung memory)\n" "\t\t\t 3 = Compro VideoMate H900\n" "\t\t\t 4 = Yuan MPC718\n" + "\t\t\t 5 = Conexant Raptor PAL/SECAM\n" "\t\t\t 0 = Autodetect (default)\n" "\t\t\t-1 = Ignore this card\n\t\t"); MODULE_PARM_DESC(pal, "Set PAL standard: B, G, H, D, K, I, M, N, Nc, 60"); @@ -435,7 +436,7 @@ static int __devinit cx18_init_struct1(struct cx18 *cx) (cx->params.video_temporal_filter_mode << 1) | (cx->params.video_median_filter_type << 2); cx->params.port = CX2341X_PORT_MEMORY; - cx->params.capabilities = CX2341X_CAP_HAS_SLICED_VBI; + cx->params.capabilities = 0; init_waitqueue_head(&cx->cap_w); init_waitqueue_head(&cx->mb_apu_waitq); init_waitqueue_head(&cx->mb_cpu_waitq); @@ -614,7 +615,7 @@ static int __devinit cx18_probe(struct pci_dev *dev, cx18_cards[cx18_cards_active] = cx; cx->dev = dev; cx->num = cx18_cards_active++; - snprintf(cx->name, sizeof(cx->name) - 1, "cx18-%d", cx->num); + snprintf(cx->name, sizeof(cx->name), "cx18-%d", cx->num); CX18_INFO("Initializing card #%d\n", cx->num); spin_unlock(&cx18_cards_lock); @@ -818,6 +819,9 @@ int cx18_init_on_first_open(struct cx18 *cx) int video_input; int fw_retry_count = 3; struct v4l2_frequency vf; + struct cx18_open_id fh; + + fh.cx = cx; if (test_bit(CX18_F_I_FAILED, &cx->i_flags)) return -ENXIO; @@ -869,13 +873,13 @@ int cx18_init_on_first_open(struct cx18 *cx) video_input = cx->active_input; cx->active_input++; /* Force update of input */ - cx18_v4l2_ioctls(cx, NULL, VIDIOC_S_INPUT, &video_input); + cx18_s_input(NULL, &fh, video_input); /* Let the VIDIOC_S_STD ioctl do all the work, keeps the code in one place. */ cx->std++; /* Force full standard initialization */ - cx18_v4l2_ioctls(cx, NULL, VIDIOC_S_STD, &cx->tuner_std); - cx18_v4l2_ioctls(cx, NULL, VIDIOC_S_FREQUENCY, &vf); + cx18_s_std(NULL, &fh, &cx->tuner_std); + cx18_s_frequency(NULL, &fh, &vf); return 0; } diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index de14ab59a206..b421e0268b00 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -75,7 +75,8 @@ #define CX18_CARD_HVR_1600_SAMSUNG 1 /* Hauppauge HVR 1600 (Samsung memory) */ #define CX18_CARD_COMPRO_H900 2 /* Compro VideoMate H900 */ #define CX18_CARD_YUAN_MPC718 3 /* Yuan MPC718 */ -#define CX18_CARD_LAST 3 +#define CX18_CARD_CNXT_RAPTOR_PAL 4 /* Conexant Raptor PAL */ +#define CX18_CARD_LAST 4 #define CX18_ENC_STREAM_TYPE_MPG 0 #define CX18_ENC_STREAM_TYPE_TS 1 @@ -94,6 +95,7 @@ #define CX18_PCI_ID_HAUPPAUGE 0x0070 #define CX18_PCI_ID_COMPRO 0x185b #define CX18_PCI_ID_YUAN 0x12ab +#define CX18_PCI_ID_CONEXANT 0x14f1 /* ======================================================================== */ /* ========================== START USER SETTABLE DMA VARIABLES =========== */ diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c index c9744173f969..cae38985b131 100644 --- a/drivers/media/video/cx18/cx18-dvb.c +++ b/drivers/media/video/cx18/cx18-dvb.c @@ -69,11 +69,21 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed) struct dvb_demux *demux = feed->demux; struct cx18_stream *stream = (struct cx18_stream *) demux->priv; struct cx18 *cx = stream->cx; - int ret = -EINVAL; + int ret; u32 v; CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n", feed->pid, feed->index); + + mutex_lock(&cx->serialize_lock); + ret = cx18_init_on_first_open(cx); + mutex_unlock(&cx->serialize_lock); + if (ret) { + CX18_ERR("Failed to initialize firmware starting DVB feed\n"); + return ret; + } + ret = -EINVAL; + switch (cx->card->type) { case CX18_CARD_HVR_1600_ESMT: case CX18_CARD_HVR_1600_SAMSUNG: @@ -101,6 +111,11 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed) if (stream->dvb.feeding++ == 0) { CX18_DEBUG_INFO("Starting Transport DMA\n"); ret = cx18_start_v4l2_encode_stream(stream); + if (ret < 0) { + CX18_DEBUG_INFO( + "Failed to start Transport DMA\n"); + stream->dvb.feeding--; + } } else ret = 0; mutex_unlock(&stream->dvb.feedlock); diff --git a/drivers/media/video/cx18/cx18-firmware.c b/drivers/media/video/cx18/cx18-firmware.c index 2694ce350631..2c280728dd7e 100644 --- a/drivers/media/video/cx18/cx18-firmware.c +++ b/drivers/media/video/cx18/cx18-firmware.c @@ -345,6 +345,11 @@ int cx18_firmware_init(struct cx18 *cx) int sz = load_apu_fw_direct("v4l-cx23418-apu.fw", cx->enc_mem, cx, CX18_FW_APU_SIZE); + write_enc(0xE51FF004, 0); + write_enc(0xa00000, 4); /* todo: not hardcoded */ + write_reg(0x00010000, CX18_PROC_SOFT_RESET); /* Start APU */ + cx18_msleep_timeout(500, 0); + sz = sz <= 0 ? sz : load_cpu_fw_direct("v4l-cx23418-cpu.fw", cx->enc_mem, cx, CX18_FW_CPU_SIZE); diff --git a/drivers/media/video/cx18/cx18-gpio.c b/drivers/media/video/cx18/cx18-gpio.c index ceb63653c926..089bad6d85a0 100644 --- a/drivers/media/video/cx18/cx18-gpio.c +++ b/drivers/media/video/cx18/cx18-gpio.c @@ -53,10 +53,34 @@ static void gpio_write(struct cx18 *cx) write_reg(((dir & 0xffff) << 16) | (val & 0xffff), CX18_REG_GPIO_OUT1); write_reg(dir & 0xffff0000, CX18_REG_GPIO_DIR2); - write_reg((dir & 0xffff0000) | ((val & 0xffff0000) >> 16), + write_reg_sync((dir & 0xffff0000) | ((val & 0xffff0000) >> 16), CX18_REG_GPIO_OUT2); } +void cx18_reset_i2c_slaves_gpio(struct cx18 *cx) +{ + const struct cx18_gpio_i2c_slave_reset *p; + + p = &cx->card->gpio_i2c_slave_reset; + + if ((p->active_lo_mask | p->active_hi_mask) == 0) + return; + + /* Assuming that the masks are a subset of the bits in gpio_dir */ + + /* Assert */ + cx->gpio_val = + (cx->gpio_val | p->active_hi_mask) & ~(p->active_lo_mask); + gpio_write(cx); + schedule_timeout_uninterruptible(msecs_to_jiffies(p->msecs_asserted)); + + /* Deassert */ + cx->gpio_val = + (cx->gpio_val | p->active_lo_mask) & ~(p->active_hi_mask); + gpio_write(cx); + schedule_timeout_uninterruptible(msecs_to_jiffies(p->msecs_recovery)); +} + void cx18_gpio_init(struct cx18 *cx) { cx->gpio_dir = cx->card->gpio_init.direction; @@ -98,3 +122,37 @@ int cx18_reset_tuner_gpio(void *dev, int cmd, int value) schedule_timeout_interruptible(msecs_to_jiffies(1)); return 0; } + +int cx18_gpio(struct cx18 *cx, unsigned int command, void *arg) +{ + struct v4l2_routing *route = arg; + u32 mask, data; + + switch (command) { + case VIDIOC_INT_S_AUDIO_ROUTING: + if (route->input > 2) + return -EINVAL; + mask = cx->card->gpio_audio_input.mask; + switch (route->input) { + case 0: + data = cx->card->gpio_audio_input.tuner; + break; + case 1: + data = cx->card->gpio_audio_input.linein; + break; + case 2: + default: + data = cx->card->gpio_audio_input.radio; + break; + } + break; + + default: + return -EINVAL; + } + if (mask) { + cx->gpio_val = (cx->gpio_val & ~mask) | (data & mask); + gpio_write(cx); + } + return 0; +} diff --git a/drivers/media/video/cx18/cx18-gpio.h b/drivers/media/video/cx18/cx18-gpio.h index 41bac8856b50..7447fed35767 100644 --- a/drivers/media/video/cx18/cx18-gpio.h +++ b/drivers/media/video/cx18/cx18-gpio.h @@ -21,4 +21,6 @@ */ void cx18_gpio_init(struct cx18 *cx); +void cx18_reset_i2c_slaves_gpio(struct cx18 *cx); int cx18_reset_tuner_gpio(void *dev, int cmd, int value); +int cx18_gpio(struct cx18 *cx, unsigned int command, void *arg); diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c index 1d6c51a75313..bca905901d61 100644 --- a/drivers/media/video/cx18/cx18-i2c.c +++ b/drivers/media/video/cx18/cx18-i2c.c @@ -311,8 +311,12 @@ int cx18_i2c_hw(struct cx18 *cx, u32 hw, unsigned int cmd, void *arg) { int addr; - if (hw == CX18_HW_GPIO || hw == 0) + if (hw == 0) return 0; + + if (hw == CX18_HW_GPIO) + return cx18_gpio(cx, cmd, arg); + if (hw == CX18_HW_CX23418) return cx18_av_cmd(cx, cmd, arg); @@ -350,6 +354,8 @@ void cx18_call_i2c_clients(struct cx18 *cx, unsigned int cmd, void *arg) cx18_av_cmd(cx, cmd, arg); i2c_clients_command(&cx->i2c_adap[0], cmd, arg); i2c_clients_command(&cx->i2c_adap[1], cmd, arg); + if (cx->hw_flags & CX18_HW_GPIO) + cx18_gpio(cx, cmd, arg); } /* init + register i2c algo-bit adapter */ @@ -358,6 +364,18 @@ int init_cx18_i2c(struct cx18 *cx) int i; CX18_DEBUG_I2C("i2c init\n"); + /* Sanity checks for the I2C hardware arrays. They must be the + * same size and GPIO/CX23418 must be the last entries. + */ + if (ARRAY_SIZE(hw_driverids) != ARRAY_SIZE(hw_addrs) || + ARRAY_SIZE(hw_devicenames) != ARRAY_SIZE(hw_addrs) || + CX18_HW_GPIO != (1 << (ARRAY_SIZE(hw_addrs) - 2)) || + CX18_HW_CX23418 != (1 << (ARRAY_SIZE(hw_addrs) - 1)) || + hw_driverids[ARRAY_SIZE(hw_addrs) - 1]) { + CX18_ERR("Mismatched I2C hardware arrays\n"); + return -ENODEV; + } + for (i = 0; i < 2; i++) { memcpy(&cx->i2c_adap[i], &cx18_i2c_adap_template, sizeof(struct i2c_adapter)); @@ -405,6 +423,8 @@ int init_cx18_i2c(struct cx18 *cx) cx18_setscl(&cx->i2c_algo_cb_data[1], 1); cx18_setsda(&cx->i2c_algo_cb_data[1], 1); + cx18_reset_i2c_slaves_gpio(cx); + return i2c_bit_add_bus(&cx->i2c_adap[0]) || i2c_bit_add_bus(&cx->i2c_adap[1]); } diff --git a/drivers/media/video/cx18/cx18-ioctl.c b/drivers/media/video/cx18/cx18-ioctl.c index 4151f1e5493f..7231f60a180b 100644 --- a/drivers/media/video/cx18/cx18-ioctl.c +++ b/drivers/media/video/cx18/cx18-ioctl.c @@ -100,19 +100,6 @@ void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) } } -static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal) -{ - int f, l; - u16 set = 0; - - for (f = 0; f < 2; f++) { - for (l = 0; l < 24; l++) { - fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal); - set |= fmt->service_lines[f][l]; - } - } - return set != 0; -} u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt) { @@ -126,35 +113,6 @@ u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt) return set; } -static const struct { - v4l2_std_id std; - char *name; -} enum_stds[] = { - { V4L2_STD_PAL_BG | V4L2_STD_PAL_H, "PAL-BGH" }, - { V4L2_STD_PAL_DK, "PAL-DK" }, - { V4L2_STD_PAL_I, "PAL-I" }, - { V4L2_STD_PAL_M, "PAL-M" }, - { V4L2_STD_PAL_N, "PAL-N" }, - { V4L2_STD_PAL_Nc, "PAL-Nc" }, - { V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, "SECAM-BGH" }, - { V4L2_STD_SECAM_DK, "SECAM-DK" }, - { V4L2_STD_SECAM_L, "SECAM-L" }, - { V4L2_STD_SECAM_LC, "SECAM-L'" }, - { V4L2_STD_NTSC_M, "NTSC-M" }, - { V4L2_STD_NTSC_M_JP, "NTSC-J" }, - { V4L2_STD_NTSC_M_KR, "NTSC-K" }, -}; - -static const struct v4l2_standard cx18_std_60hz = { - .frameperiod = {.numerator = 1001, .denominator = 30000}, - .framelines = 525, -}; - -static const struct v4l2_standard cx18_std_50hz = { - .frameperiod = { .numerator = 1, .denominator = 25 }, - .framelines = 625, -}; - static int cx18_cxc(struct cx18 *cx, unsigned int cmd, void *arg) { struct v4l2_register *regs = arg; @@ -174,665 +132,626 @@ static int cx18_cxc(struct cx18 *cx, unsigned int cmd, void *arg) return 0; } -static int cx18_get_fmt(struct cx18 *cx, int streamtype, struct v4l2_format *fmt) -{ - switch (fmt->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - fmt->fmt.pix.width = cx->params.width; - fmt->fmt.pix.height = cx->params.height; - fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; - fmt->fmt.pix.field = V4L2_FIELD_INTERLACED; - if (streamtype == CX18_ENC_STREAM_TYPE_YUV) { - fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_HM12; - /* YUV size is (Y=(h*w) + UV=(h*(w/2))) */ - fmt->fmt.pix.sizeimage = - fmt->fmt.pix.height * fmt->fmt.pix.width + - fmt->fmt.pix.height * (fmt->fmt.pix.width / 2); - } else { - fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; - fmt->fmt.pix.sizeimage = 128 * 1024; - } - break; - - case V4L2_BUF_TYPE_VBI_CAPTURE: - fmt->fmt.vbi.sampling_rate = 27000000; - fmt->fmt.vbi.offset = 248; - fmt->fmt.vbi.samples_per_line = cx->vbi.raw_decoder_line_size - 4; - fmt->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; - fmt->fmt.vbi.start[0] = cx->vbi.start[0]; - fmt->fmt.vbi.start[1] = cx->vbi.start[1]; - fmt->fmt.vbi.count[0] = fmt->fmt.vbi.count[1] = cx->vbi.count; - break; - - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - { - struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; - - vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; - memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved)); - memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines)); - - cx18_av_cmd(cx, VIDIOC_G_FMT, fmt); - vbifmt->service_set = cx18_get_service_set(vbifmt); - break; - } - default: - return -EINVAL; +static int cx18_g_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; + + pixfmt->width = cx->params.width; + pixfmt->height = cx->params.height; + pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; + pixfmt->field = V4L2_FIELD_INTERLACED; + pixfmt->priv = 0; + if (id->type == CX18_ENC_STREAM_TYPE_YUV) { + pixfmt->pixelformat = V4L2_PIX_FMT_HM12; + /* YUV size is (Y=(h*w) + UV=(h*(w/2))) */ + pixfmt->sizeimage = + pixfmt->height * pixfmt->width + + pixfmt->height * (pixfmt->width / 2); + pixfmt->bytesperline = 720; + } else { + pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; + pixfmt->sizeimage = 128 * 1024; + pixfmt->bytesperline = 0; } return 0; } -static int cx18_try_or_set_fmt(struct cx18 *cx, int streamtype, - struct v4l2_format *fmt, int set_fmt) +static int cx18_g_fmt_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) { - struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; - u16 set; + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; + struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi; + + vbifmt->sampling_rate = 27000000; + vbifmt->offset = 248; + vbifmt->samples_per_line = cx->vbi.raw_decoder_line_size - 4; + vbifmt->sample_format = V4L2_PIX_FMT_GREY; + vbifmt->start[0] = cx->vbi.start[0]; + vbifmt->start[1] = cx->vbi.start[1]; + vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count; + vbifmt->flags = 0; + vbifmt->reserved[0] = 0; + vbifmt->reserved[1] = 0; + return 0; +} - /* set window size */ - if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { - int w = fmt->fmt.pix.width; - int h = fmt->fmt.pix.height; +static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + return -EINVAL; +} - if (w > 720) - w = 720; - else if (w < 1) - w = 1; - if (h > (cx->is_50hz ? 576 : 480)) - h = (cx->is_50hz ? 576 : 480); - else if (h < 2) - h = 2; - cx18_get_fmt(cx, streamtype, fmt); - fmt->fmt.pix.width = w; - fmt->fmt.pix.height = h; +static int cx18_try_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; - if (!set_fmt || (cx->params.width == w && cx->params.height == h)) - return 0; - if (atomic_read(&cx->ana_capturing) > 0) - return -EBUSY; - - cx->params.width = w; - cx->params.height = h; - if (w != 720 || h != (cx->is_50hz ? 576 : 480)) - cx->params.video_temporal_filter = 0; - else - cx->params.video_temporal_filter = 8; - cx18_av_cmd(cx, VIDIOC_S_FMT, fmt); - return cx18_get_fmt(cx, streamtype, fmt); - } + int w = fmt->fmt.pix.width; + int h = fmt->fmt.pix.height; - /* set raw VBI format */ - if (fmt->type == V4L2_BUF_TYPE_VBI_CAPTURE) { - if (set_fmt && streamtype == CX18_ENC_STREAM_TYPE_VBI && - cx->vbi.sliced_in->service_set && - atomic_read(&cx->ana_capturing) > 0) - return -EBUSY; - if (set_fmt) { - cx->vbi.sliced_in->service_set = 0; - cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in); - } - return cx18_get_fmt(cx, streamtype, fmt); - } + w = min(w, 720); + w = max(w, 1); + h = min(h, cx->is_50hz ? 576 : 480); + h = max(h, 2); + cx18_g_fmt_vid_cap(file, fh, fmt); + fmt->fmt.pix.width = w; + fmt->fmt.pix.height = h; + return 0; +} - /* any else but sliced VBI capture is an error */ - if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) - return -EINVAL; +static int cx18_try_fmt_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + return cx18_g_fmt_vbi_cap(file, fh, fmt); +} - /* TODO: implement sliced VBI, for now silently return 0 */ - return 0; +static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + return -EINVAL; +} + +static int cx18_s_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + int ret; + int w = fmt->fmt.pix.width; + int h = fmt->fmt.pix.height; - /* set sliced VBI capture format */ - vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; - memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved)); + ret = v4l2_prio_check(&cx->prio, &id->prio); + if (ret) + return ret; - if (vbifmt->service_set) - cx18_expand_service_set(vbifmt, cx->is_50hz); - set = check_service_set(vbifmt, cx->is_50hz); - vbifmt->service_set = cx18_get_service_set(vbifmt); + ret = cx18_try_fmt_vid_cap(file, fh, fmt); + if (ret) + return ret; - if (!set_fmt) + if (cx->params.width == w && cx->params.height == h) return 0; - if (set == 0) - return -EINVAL; - if (atomic_read(&cx->ana_capturing) > 0 && cx->vbi.sliced_in->service_set == 0) + + if (atomic_read(&cx->ana_capturing) > 0) return -EBUSY; + + cx->params.width = w; + cx->params.height = h; cx18_av_cmd(cx, VIDIOC_S_FMT, fmt); - memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in)); - return 0; + return cx18_g_fmt_vid_cap(file, fh, fmt); } -static int cx18_debug_ioctls(struct file *filp, unsigned int cmd, void *arg) +static int cx18_s_fmt_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) { - struct cx18_open_id *id = (struct cx18_open_id *)filp->private_data; + struct cx18_open_id *id = fh; struct cx18 *cx = id->cx; - struct v4l2_register *reg = arg; + int ret; - switch (cmd) { - /* ioctls to allow direct access to the encoder registers for testing */ - case VIDIOC_DBG_G_REGISTER: - if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) - return cx18_cxc(cx, cmd, arg); - if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) - return cx18_i2c_id(cx, reg->match_chip, cmd, arg); - return cx18_call_i2c_client(cx, reg->match_chip, cmd, arg); - - case VIDIOC_DBG_S_REGISTER: - if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) - return cx18_cxc(cx, cmd, arg); - if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) - return cx18_i2c_id(cx, reg->match_chip, cmd, arg); - return cx18_call_i2c_client(cx, reg->match_chip, cmd, arg); - - case VIDIOC_G_CHIP_IDENT: { - struct v4l2_chip_ident *chip = arg; - - chip->ident = V4L2_IDENT_NONE; - chip->revision = 0; - if (reg->match_type == V4L2_CHIP_MATCH_HOST) { - if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) { - struct v4l2_chip_ident *chip = arg; - - chip->ident = V4L2_IDENT_CX23418; - } - return 0; - } - if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) - return cx18_i2c_id(cx, reg->match_chip, cmd, arg); - if (reg->match_type == V4L2_CHIP_MATCH_I2C_ADDR) - return cx18_call_i2c_client(cx, reg->match_chip, cmd, arg); - return -EINVAL; - } + ret = v4l2_prio_check(&cx->prio, &id->prio); + if (ret) + return ret; - case VIDIOC_INT_S_AUDIO_ROUTING: { - struct v4l2_routing *route = arg; + if (id->type == CX18_ENC_STREAM_TYPE_VBI && + cx->vbi.sliced_in->service_set && + atomic_read(&cx->ana_capturing) > 0) + return -EBUSY; - cx18_audio_set_route(cx, route); - break; - } + cx->vbi.sliced_in->service_set = 0; + cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in); + return cx18_g_fmt_vbi_cap(file, fh, fmt); +} - default: - return -EINVAL; +static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh, + struct v4l2_format *fmt) +{ + return -EINVAL; +} + +static int cx18_g_chip_ident(struct file *file, void *fh, + struct v4l2_chip_ident *chip) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; + + chip->ident = V4L2_IDENT_NONE; + chip->revision = 0; + if (chip->match_type == V4L2_CHIP_MATCH_HOST) { + if (v4l2_chip_match_host(chip->match_type, chip->match_chip)) + chip->ident = V4L2_IDENT_CX23418; + return 0; } + if (chip->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) + return cx18_i2c_id(cx, chip->match_chip, VIDIOC_G_CHIP_IDENT, + chip); + if (chip->match_type == V4L2_CHIP_MATCH_I2C_ADDR) + return cx18_call_i2c_client(cx, chip->match_chip, + VIDIOC_G_CHIP_IDENT, chip); + return -EINVAL; +} + +static int cx18_g_register(struct file *file, void *fh, + struct v4l2_register *reg) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; + + if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return cx18_cxc(cx, VIDIOC_DBG_G_REGISTER, reg); + if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) + return cx18_i2c_id(cx, reg->match_chip, VIDIOC_DBG_G_REGISTER, + reg); + return cx18_call_i2c_client(cx, reg->match_chip, VIDIOC_DBG_G_REGISTER, + reg); +} + +static int cx18_s_register(struct file *file, void *fh, + struct v4l2_register *reg) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; + + if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return cx18_cxc(cx, VIDIOC_DBG_S_REGISTER, reg); + if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) + return cx18_i2c_id(cx, reg->match_chip, VIDIOC_DBG_S_REGISTER, + reg); + return cx18_call_i2c_client(cx, reg->match_chip, VIDIOC_DBG_S_REGISTER, + reg); +} + +static int cx18_g_priority(struct file *file, void *fh, enum v4l2_priority *p) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; + + *p = v4l2_prio_max(&cx->prio); return 0; } -int cx18_v4l2_ioctls(struct cx18 *cx, struct file *filp, unsigned cmd, void *arg) +static int cx18_s_priority(struct file *file, void *fh, enum v4l2_priority prio) { - struct cx18_open_id *id = NULL; + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; - if (filp) - id = (struct cx18_open_id *)filp->private_data; + return v4l2_prio_change(&cx->prio, &id->prio, prio); +} - switch (cmd) { - case VIDIOC_G_PRIORITY: - { - enum v4l2_priority *p = arg; +static int cx18_querycap(struct file *file, void *fh, + struct v4l2_capability *vcap) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - *p = v4l2_prio_max(&cx->prio); - break; - } + strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver)); + strlcpy(vcap->card, cx->card_name, sizeof(vcap->card)); + strlcpy(vcap->bus_info, pci_name(cx->dev), sizeof(vcap->bus_info)); + vcap->version = CX18_DRIVER_VERSION; /* version */ + vcap->capabilities = cx->v4l2_cap; /* capabilities */ + return 0; +} - case VIDIOC_S_PRIORITY: - { - enum v4l2_priority *prio = arg; +static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - return v4l2_prio_change(&cx->prio, &id->prio, *prio); - } + return cx18_get_audio_input(cx, vin->index, vin); +} - case VIDIOC_QUERYCAP:{ - struct v4l2_capability *vcap = arg; +static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - memset(vcap, 0, sizeof(*vcap)); - strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver)); - strlcpy(vcap->card, cx->card_name, sizeof(vcap->card)); - strlcpy(vcap->bus_info, pci_name(cx->dev), sizeof(vcap->bus_info)); - vcap->version = CX18_DRIVER_VERSION; /* version */ - vcap->capabilities = cx->v4l2_cap; /* capabilities */ + vin->index = cx->audio_input; + return cx18_get_audio_input(cx, vin->index, vin); +} - /* reserved.. must set to 0! */ - vcap->reserved[0] = vcap->reserved[1] = - vcap->reserved[2] = vcap->reserved[3] = 0; - break; - } +static int cx18_s_audio(struct file *file, void *fh, struct v4l2_audio *vout) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - case VIDIOC_ENUMAUDIO:{ - struct v4l2_audio *vin = arg; + if (vout->index >= cx->nof_audio_inputs) + return -EINVAL; + cx->audio_input = vout->index; + cx18_audio_set_io(cx); + return 0; +} - return cx18_get_audio_input(cx, vin->index, vin); - } +static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - case VIDIOC_G_AUDIO:{ - struct v4l2_audio *vin = arg; + /* set it to defaults from our table */ + return cx18_get_input(cx, vin->index, vin); +} - vin->index = cx->audio_input; - return cx18_get_audio_input(cx, vin->index, vin); - } +static int cx18_cropcap(struct file *file, void *fh, + struct v4l2_cropcap *cropcap) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - case VIDIOC_S_AUDIO:{ - struct v4l2_audio *vout = arg; + if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + cropcap->bounds.top = cropcap->bounds.left = 0; + cropcap->bounds.width = 720; + cropcap->bounds.height = cx->is_50hz ? 576 : 480; + cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10; + cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11; + cropcap->defrect = cropcap->bounds; + return 0; +} - if (vout->index >= cx->nof_audio_inputs) - return -EINVAL; - cx->audio_input = vout->index; - cx18_audio_set_io(cx); - break; - } +static int cx18_s_crop(struct file *file, void *fh, struct v4l2_crop *crop) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + int ret; - case VIDIOC_ENUMINPUT:{ - struct v4l2_input *vin = arg; + ret = v4l2_prio_check(&cx->prio, &id->prio); + if (ret) + return ret; - /* set it to defaults from our table */ - return cx18_get_input(cx, vin->index, vin); - } + if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + return cx18_av_cmd(cx, VIDIOC_S_CROP, crop); +} - case VIDIOC_TRY_FMT: - case VIDIOC_S_FMT: { - struct v4l2_format *fmt = arg; +static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - return cx18_try_or_set_fmt(cx, id->type, fmt, cmd == VIDIOC_S_FMT); - } + if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + return cx18_av_cmd(cx, VIDIOC_G_CROP, crop); +} - case VIDIOC_G_FMT: { - struct v4l2_format *fmt = arg; - int type = fmt->type; +static int cx18_enum_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_fmtdesc *fmt) +{ + static struct v4l2_fmtdesc formats[] = { + { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, + "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 } + }, + { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED, + "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 } + } + }; - memset(fmt, 0, sizeof(*fmt)); - fmt->type = type; - return cx18_get_fmt(cx, id->type, fmt); - } + if (fmt->index > 1) + return -EINVAL; + *fmt = formats[fmt->index]; + return 0; +} - case VIDIOC_CROPCAP: { - struct v4l2_cropcap *cropcap = arg; - - if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - cropcap->bounds.top = cropcap->bounds.left = 0; - cropcap->bounds.width = 720; - cropcap->bounds.height = cx->is_50hz ? 576 : 480; - cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10; - cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11; - cropcap->defrect = cropcap->bounds; - return 0; - } +static int cx18_g_input(struct file *file, void *fh, unsigned int *i) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - case VIDIOC_S_CROP: { - struct v4l2_crop *crop = arg; + *i = cx->active_input; + return 0; +} - if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - return cx18_av_cmd(cx, VIDIOC_S_CROP, arg); - } +int cx18_s_input(struct file *file, void *fh, unsigned int inp) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + int ret; - case VIDIOC_G_CROP: { - struct v4l2_crop *crop = arg; + ret = v4l2_prio_check(&cx->prio, &id->prio); + if (ret) + return ret; - if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - return cx18_av_cmd(cx, VIDIOC_G_CROP, arg); - } + if (inp < 0 || inp >= cx->nof_inputs) + return -EINVAL; - case VIDIOC_ENUM_FMT: { - static struct v4l2_fmtdesc formats[] = { - { 0, 0, 0, - "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, - { 0, 0, 0, 0 } - }, - { 1, 0, V4L2_FMT_FLAG_COMPRESSED, - "MPEG", V4L2_PIX_FMT_MPEG, - { 0, 0, 0, 0 } - } - }; - struct v4l2_fmtdesc *fmt = arg; - enum v4l2_buf_type type = fmt->type; - - switch (type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - break; - default: - return -EINVAL; - } - if (fmt->index > 1) - return -EINVAL; - *fmt = formats[fmt->index]; - fmt->type = type; + if (inp == cx->active_input) { + CX18_DEBUG_INFO("Input unchanged\n"); return 0; } - case VIDIOC_G_INPUT:{ - *(int *)arg = cx->active_input; - break; - } + CX18_DEBUG_INFO("Changing input from %d to %d\n", + cx->active_input, inp); - case VIDIOC_S_INPUT:{ - int inp = *(int *)arg; + cx->active_input = inp; + /* Set the audio input to whatever is appropriate for the input type. */ + cx->audio_input = cx->card->video_inputs[inp].audio_index; - if (inp < 0 || inp >= cx->nof_inputs) - return -EINVAL; + /* prevent others from messing with the streams until + we're finished changing inputs. */ + cx18_mute(cx); + cx18_video_set_io(cx); + cx18_audio_set_io(cx); + cx18_unmute(cx); + return 0; +} - if (inp == cx->active_input) { - CX18_DEBUG_INFO("Input unchanged\n"); - break; - } - CX18_DEBUG_INFO("Changing input from %d to %d\n", - cx->active_input, inp); +static int cx18_g_frequency(struct file *file, void *fh, + struct v4l2_frequency *vf) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - cx->active_input = inp; - /* Set the audio input to whatever is appropriate for the - input type. */ - cx->audio_input = cx->card->video_inputs[inp].audio_index; + if (vf->tuner != 0) + return -EINVAL; - /* prevent others from messing with the streams until - we're finished changing inputs. */ - cx18_mute(cx); - cx18_video_set_io(cx); - cx18_audio_set_io(cx); - cx18_unmute(cx); - break; - } + cx18_call_i2c_clients(cx, VIDIOC_G_FREQUENCY, vf); + return 0; +} - case VIDIOC_G_FREQUENCY:{ - struct v4l2_frequency *vf = arg; +int cx18_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + int ret; - if (vf->tuner != 0) - return -EINVAL; - cx18_call_i2c_clients(cx, cmd, arg); - break; - } + ret = v4l2_prio_check(&cx->prio, &id->prio); + if (ret) + return ret; - case VIDIOC_S_FREQUENCY:{ - struct v4l2_frequency vf = *(struct v4l2_frequency *)arg; + if (vf->tuner != 0) + return -EINVAL; - if (vf.tuner != 0) - return -EINVAL; + cx18_mute(cx); + CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); + cx18_call_i2c_clients(cx, VIDIOC_S_FREQUENCY, vf); + cx18_unmute(cx); + return 0; +} - cx18_mute(cx); - CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf.frequency); - cx18_call_i2c_clients(cx, cmd, &vf); - cx18_unmute(cx); - break; - } +static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - case VIDIOC_ENUMSTD:{ - struct v4l2_standard *vs = arg; - int idx = vs->index; + *std = cx->std; + return 0; +} - if (idx < 0 || idx >= ARRAY_SIZE(enum_stds)) - return -EINVAL; +int cx18_s_std(struct file *file, void *fh, v4l2_std_id *std) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + int ret; - *vs = (enum_stds[idx].std & V4L2_STD_525_60) ? - cx18_std_60hz : cx18_std_50hz; - vs->index = idx; - vs->id = enum_stds[idx].std; - strlcpy(vs->name, enum_stds[idx].name, sizeof(vs->name)); - break; - } + ret = v4l2_prio_check(&cx->prio, &id->prio); + if (ret) + return ret; - case VIDIOC_G_STD:{ - *(v4l2_std_id *) arg = cx->std; - break; + if ((*std & V4L2_STD_ALL) == 0) + return -EINVAL; + + if (*std == cx->std) + return 0; + + if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || + atomic_read(&cx->ana_capturing) > 0) { + /* Switching standard would turn off the radio or mess + with already running streams, prevent that by + returning EBUSY. */ + return -EBUSY; } - case VIDIOC_S_STD: { - v4l2_std_id std = *(v4l2_std_id *) arg; + cx->std = *std; + cx->is_60hz = (*std & V4L2_STD_525_60) ? 1 : 0; + cx->params.is_50hz = cx->is_50hz = !cx->is_60hz; + cx->params.width = 720; + cx->params.height = cx->is_50hz ? 576 : 480; + cx->vbi.count = cx->is_50hz ? 18 : 12; + cx->vbi.start[0] = cx->is_50hz ? 6 : 10; + cx->vbi.start[1] = cx->is_50hz ? 318 : 273; + cx->vbi.sliced_decoder_line_size = cx->is_60hz ? 272 : 284; + CX18_DEBUG_INFO("Switching standard to %llx.\n", + (unsigned long long) cx->std); + + /* Tuner */ + cx18_call_i2c_clients(cx, VIDIOC_S_STD, &cx->std); + return 0; +} - if ((std & V4L2_STD_ALL) == 0) - return -EINVAL; +static int cx18_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + int ret; - if (std == cx->std) - break; + ret = v4l2_prio_check(&cx->prio, &id->prio); + if (ret) + return ret; - if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) || - atomic_read(&cx->ana_capturing) > 0) { - /* Switching standard would turn off the radio or mess - with already running streams, prevent that by - returning EBUSY. */ - return -EBUSY; - } + if (vt->index != 0) + return -EINVAL; - cx->std = std; - cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; - cx->params.is_50hz = cx->is_50hz = !cx->is_60hz; - cx->params.width = 720; - cx->params.height = cx->is_50hz ? 576 : 480; - cx->vbi.count = cx->is_50hz ? 18 : 12; - cx->vbi.start[0] = cx->is_50hz ? 6 : 10; - cx->vbi.start[1] = cx->is_50hz ? 318 : 273; - cx->vbi.sliced_decoder_line_size = cx->is_60hz ? 272 : 284; - CX18_DEBUG_INFO("Switching standard to %llx.\n", (unsigned long long)cx->std); - - /* Tuner */ - cx18_call_i2c_clients(cx, VIDIOC_S_STD, &cx->std); - break; - } + /* Setting tuner can only set audio mode */ + cx18_call_i2c_clients(cx, VIDIOC_S_TUNER, vt); - case VIDIOC_S_TUNER: { /* Setting tuner can only set audio mode */ - struct v4l2_tuner *vt = arg; + return 0; +} - if (vt->index != 0) - return -EINVAL; +static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - cx18_call_i2c_clients(cx, VIDIOC_S_TUNER, vt); - break; + if (vt->index != 0) + return -EINVAL; + + cx18_call_i2c_clients(cx, VIDIOC_G_TUNER, vt); + + if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)) { + strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); + vt->type = V4L2_TUNER_RADIO; + } else { + strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); + vt->type = V4L2_TUNER_ANALOG_TV; } - case VIDIOC_G_TUNER: { - struct v4l2_tuner *vt = arg; + return 0; +} - if (vt->index != 0) - return -EINVAL; +static int cx18_g_sliced_vbi_cap(struct file *file, void *fh, + struct v4l2_sliced_vbi_cap *cap) +{ + return -EINVAL; +} - memset(vt, 0, sizeof(*vt)); - cx18_call_i2c_clients(cx, VIDIOC_G_TUNER, vt); +static int cx18_g_enc_index(struct file *file, void *fh, + struct v4l2_enc_idx *idx) +{ + return -EINVAL; +} - if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)) { - strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name)); - vt->type = V4L2_TUNER_RADIO; - } else { - strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name)); - vt->type = V4L2_TUNER_ANALOG_TV; - } +static int cx18_encoder_cmd(struct file *file, void *fh, + struct v4l2_encoder_cmd *enc) +{ + struct cx18_open_id *id = fh; + struct cx18 *cx = id->cx; + + switch (enc->cmd) { + case V4L2_ENC_CMD_START: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); + enc->flags = 0; + return cx18_start_capture(id); + + case V4L2_ENC_CMD_STOP: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); + enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; + cx18_stop_capture(id, + enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); break; - } - case VIDIOC_G_SLICED_VBI_CAP: { - struct v4l2_sliced_vbi_cap *cap = arg; - int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; - int f, l; - enum v4l2_buf_type type = cap->type; - - memset(cap, 0, sizeof(*cap)); - cap->type = type; - if (type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) { - for (f = 0; f < 2; f++) { - for (l = 0; l < 24; l++) { - if (valid_service_line(f, l, cx->is_50hz)) - cap->service_lines[f][l] = set; - } - } + case V4L2_ENC_CMD_PAUSE: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); + enc->flags = 0; + if (!atomic_read(&cx->ana_capturing)) + return -EPERM; + if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) return 0; - } + cx18_mute(cx); + cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, cx18_find_handle(cx)); + break; + + case V4L2_ENC_CMD_RESUME: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); + enc->flags = 0; + if (!atomic_read(&cx->ana_capturing)) + return -EPERM; + if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) + return 0; + cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, cx18_find_handle(cx)); + cx18_unmute(cx); + break; + + default: + CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); return -EINVAL; } + return 0; +} - case VIDIOC_ENCODER_CMD: - case VIDIOC_TRY_ENCODER_CMD: { - struct v4l2_encoder_cmd *enc = arg; - int try = cmd == VIDIOC_TRY_ENCODER_CMD; - - memset(&enc->raw, 0, sizeof(enc->raw)); - switch (enc->cmd) { - case V4L2_ENC_CMD_START: - enc->flags = 0; - if (try) - return 0; - return cx18_start_capture(id); - - case V4L2_ENC_CMD_STOP: - enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; - if (try) - return 0; - cx18_stop_capture(id, enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); - return 0; +static int cx18_try_encoder_cmd(struct file *file, void *fh, + struct v4l2_encoder_cmd *enc) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; - case V4L2_ENC_CMD_PAUSE: - enc->flags = 0; - if (try) - return 0; - if (!atomic_read(&cx->ana_capturing)) - return -EPERM; - if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) - return 0; - cx18_mute(cx); - cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, cx18_find_handle(cx)); - break; - - case V4L2_ENC_CMD_RESUME: - enc->flags = 0; - if (try) - return 0; - if (!atomic_read(&cx->ana_capturing)) - return -EPERM; - if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags)) - return 0; - cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, cx18_find_handle(cx)); - cx18_unmute(cx); - break; - default: - return -EINVAL; - } + switch (enc->cmd) { + case V4L2_ENC_CMD_START: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); + enc->flags = 0; break; - } - case VIDIOC_LOG_STATUS: - { - struct v4l2_input vidin; - struct v4l2_audio audin; - int i; + case V4L2_ENC_CMD_STOP: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); + enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; + break; - CX18_INFO("================= START STATUS CARD #%d =================\n", cx->num); - if (cx->hw_flags & CX18_HW_TVEEPROM) { - struct tveeprom tv; + case V4L2_ENC_CMD_PAUSE: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); + enc->flags = 0; + break; - cx18_read_eeprom(cx, &tv); - } - cx18_call_i2c_clients(cx, VIDIOC_LOG_STATUS, NULL); - cx18_get_input(cx, cx->active_input, &vidin); - cx18_get_audio_input(cx, cx->audio_input, &audin); - CX18_INFO("Video Input: %s\n", vidin.name); - CX18_INFO("Audio Input: %s\n", audin.name); - CX18_INFO("Tuner: %s\n", - test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? - "Radio" : "TV"); - cx2341x_log_status(&cx->params, cx->name); - CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); - for (i = 0; i < CX18_MAX_STREAMS; i++) { - struct cx18_stream *s = &cx->streams[i]; - - if (s->v4l2dev == NULL || s->buffers == 0) - continue; - CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", - s->name, s->s_flags, - (s->buffers - s->q_free.buffers) * 100 / s->buffers, - (s->buffers * s->buf_size) / 1024, s->buffers); - } - CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", - (long long)cx->mpg_data_received, - (long long)cx->vbi_data_inserted); - CX18_INFO("================== END STATUS CARD #%d ==================\n", cx->num); + case V4L2_ENC_CMD_RESUME: + CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); + enc->flags = 0; break; - } default: + CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); return -EINVAL; } return 0; } -static int cx18_v4l2_do_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, void *arg) +static int cx18_log_status(struct file *file, void *fh) { - struct cx18_open_id *id = (struct cx18_open_id *)filp->private_data; - struct cx18 *cx = id->cx; - int ret; + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; + struct v4l2_input vidin; + struct v4l2_audio audin; + int i; - /* check priority */ - switch (cmd) { - case VIDIOC_S_CTRL: - case VIDIOC_S_STD: - case VIDIOC_S_INPUT: - case VIDIOC_S_TUNER: - case VIDIOC_S_FREQUENCY: - case VIDIOC_S_FMT: - case VIDIOC_S_CROP: - case VIDIOC_S_EXT_CTRLS: - ret = v4l2_prio_check(&cx->prio, &id->prio); - if (ret) - return ret; - } + CX18_INFO("================= START STATUS CARD #%d =================\n", cx->num); + if (cx->hw_flags & CX18_HW_TVEEPROM) { + struct tveeprom tv; + + cx18_read_eeprom(cx, &tv); + } + cx18_call_i2c_clients(cx, VIDIOC_LOG_STATUS, NULL); + cx18_get_input(cx, cx->active_input, &vidin); + cx18_get_audio_input(cx, cx->audio_input, &audin); + CX18_INFO("Video Input: %s\n", vidin.name); + CX18_INFO("Audio Input: %s\n", audin.name); + CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n", + cx->gpio_dir, cx->gpio_val); + CX18_INFO("Tuner: %s\n", + test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV"); + cx2341x_log_status(&cx->params, cx->name); + CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags); + for (i = 0; i < CX18_MAX_STREAMS; i++) { + struct cx18_stream *s = &cx->streams[i]; + + if (s->v4l2dev == NULL || s->buffers == 0) + continue; + CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", + s->name, s->s_flags, + (s->buffers - s->q_free.buffers) * 100 / s->buffers, + (s->buffers * s->buf_size) / 1024, s->buffers); + } + CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n", + (long long)cx->mpg_data_received, + (long long)cx->vbi_data_inserted); + CX18_INFO("================== END STATUS CARD #%d ==================\n", cx->num); + return 0; +} + +static int cx18_default(struct file *file, void *fh, int cmd, void *arg) +{ + struct cx18 *cx = ((struct cx18_open_id *)fh)->cx; switch (cmd) { - case VIDIOC_DBG_G_REGISTER: - case VIDIOC_DBG_S_REGISTER: - case VIDIOC_G_CHIP_IDENT: - case VIDIOC_INT_S_AUDIO_ROUTING: - case VIDIOC_INT_RESET: - if (cx18_debug & CX18_DBGFLG_IOCTL) { - printk(KERN_INFO "cx18%d ioctl: ", cx->num); - v4l_printk_ioctl(cmd); - } - return cx18_debug_ioctls(filp, cmd, arg); - - case VIDIOC_G_PRIORITY: - case VIDIOC_S_PRIORITY: - case VIDIOC_QUERYCAP: - case VIDIOC_ENUMINPUT: - case VIDIOC_G_INPUT: - case VIDIOC_S_INPUT: - case VIDIOC_G_FMT: - case VIDIOC_S_FMT: - case VIDIOC_TRY_FMT: - case VIDIOC_ENUM_FMT: - case VIDIOC_CROPCAP: - case VIDIOC_G_CROP: - case VIDIOC_S_CROP: - case VIDIOC_G_FREQUENCY: - case VIDIOC_S_FREQUENCY: - case VIDIOC_ENUMSTD: - case VIDIOC_G_STD: - case VIDIOC_S_STD: - case VIDIOC_S_TUNER: - case VIDIOC_G_TUNER: - case VIDIOC_ENUMAUDIO: - case VIDIOC_S_AUDIO: - case VIDIOC_G_AUDIO: - case VIDIOC_G_SLICED_VBI_CAP: - case VIDIOC_LOG_STATUS: - case VIDIOC_G_ENC_INDEX: - case VIDIOC_ENCODER_CMD: - case VIDIOC_TRY_ENCODER_CMD: - if (cx18_debug & CX18_DBGFLG_IOCTL) { - printk(KERN_INFO "cx18%d ioctl: ", cx->num); - v4l_printk_ioctl(cmd); - } - return cx18_v4l2_ioctls(cx, filp, cmd, arg); - - case VIDIOC_QUERYMENU: - case VIDIOC_QUERYCTRL: - case VIDIOC_S_CTRL: - case VIDIOC_G_CTRL: - case VIDIOC_S_EXT_CTRLS: - case VIDIOC_G_EXT_CTRLS: - case VIDIOC_TRY_EXT_CTRLS: - if (cx18_debug & CX18_DBGFLG_IOCTL) { - printk(KERN_INFO "cx18%d ioctl: ", cx->num); - v4l_printk_ioctl(cmd); - } - return cx18_control_ioctls(cx, cmd, arg); + case VIDIOC_INT_S_AUDIO_ROUTING: { + struct v4l2_routing *route = arg; - case 0x00005401: /* Handle isatty() calls */ - return -EINVAL; + CX18_DEBUG_IOCTL("VIDIOC_INT_S_AUDIO_ROUTING(%d, %d)\n", + route->input, route->output); + cx18_audio_set_route(cx, route); + break; + } default: - return v4l_compat_translate_ioctl(inode, filp, cmd, arg, - cx18_v4l2_do_ioctl); + return -EINVAL; } return 0; } @@ -840,12 +759,65 @@ static int cx18_v4l2_do_ioctl(struct inode *inode, struct file *filp, int cx18_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { + struct video_device *vfd = video_devdata(filp); struct cx18_open_id *id = (struct cx18_open_id *)filp->private_data; struct cx18 *cx = id->cx; int res; mutex_lock(&cx->serialize_lock); - res = video_usercopy(inode, filp, cmd, arg, cx18_v4l2_do_ioctl); + + if (cx18_debug & CX18_DBGFLG_IOCTL) + vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG; + res = video_ioctl2(inode, filp, cmd, arg); + vfd->debug = 0; mutex_unlock(&cx->serialize_lock); return res; } + +void cx18_set_funcs(struct video_device *vdev) +{ + vdev->vidioc_querycap = cx18_querycap; + vdev->vidioc_g_priority = cx18_g_priority; + vdev->vidioc_s_priority = cx18_s_priority; + vdev->vidioc_s_audio = cx18_s_audio; + vdev->vidioc_g_audio = cx18_g_audio; + vdev->vidioc_enumaudio = cx18_enumaudio; + vdev->vidioc_enum_input = cx18_enum_input; + vdev->vidioc_cropcap = cx18_cropcap; + vdev->vidioc_s_crop = cx18_s_crop; + vdev->vidioc_g_crop = cx18_g_crop; + vdev->vidioc_g_input = cx18_g_input; + vdev->vidioc_s_input = cx18_s_input; + vdev->vidioc_g_frequency = cx18_g_frequency; + vdev->vidioc_s_frequency = cx18_s_frequency; + vdev->vidioc_s_tuner = cx18_s_tuner; + vdev->vidioc_g_tuner = cx18_g_tuner; + vdev->vidioc_g_enc_index = cx18_g_enc_index; + vdev->vidioc_g_std = cx18_g_std; + vdev->vidioc_s_std = cx18_s_std; + vdev->vidioc_log_status = cx18_log_status; + vdev->vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap; + vdev->vidioc_encoder_cmd = cx18_encoder_cmd; + vdev->vidioc_try_encoder_cmd = cx18_try_encoder_cmd; + vdev->vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap; + vdev->vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap; + vdev->vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap; + vdev->vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap; + vdev->vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap; + vdev->vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap; + vdev->vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap; + vdev->vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap; + vdev->vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap; + vdev->vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap; + vdev->vidioc_g_chip_ident = cx18_g_chip_ident; + vdev->vidioc_g_register = cx18_g_register; + vdev->vidioc_s_register = cx18_s_register; + vdev->vidioc_default = cx18_default; + vdev->vidioc_queryctrl = cx18_queryctrl; + vdev->vidioc_querymenu = cx18_querymenu; + vdev->vidioc_g_ctrl = cx18_g_ctrl; + vdev->vidioc_s_ctrl = cx18_s_ctrl; + vdev->vidioc_g_ext_ctrls = cx18_g_ext_ctrls; + vdev->vidioc_s_ext_ctrls = cx18_s_ext_ctrls; + vdev->vidioc_try_ext_ctrls = cx18_try_ext_ctrls; +} diff --git a/drivers/media/video/cx18/cx18-ioctl.h b/drivers/media/video/cx18/cx18-ioctl.h index 9f4c7eb2897f..2222f679d86d 100644 --- a/drivers/media/video/cx18/cx18-ioctl.h +++ b/drivers/media/video/cx18/cx18-ioctl.h @@ -24,7 +24,9 @@ u16 cx18_service2vbi(int type); void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal); u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt); +void cx18_set_funcs(struct video_device *vdev); +int cx18_s_std(struct file *file, void *fh, v4l2_std_id *std); +int cx18_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf); +int cx18_s_input(struct file *file, void *fh, unsigned int inp); int cx18_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); -int cx18_v4l2_ioctls(struct cx18 *cx, struct file *filp, unsigned cmd, - void *arg); diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c index 1b921a336092..f3d20509a8bd 100644 --- a/drivers/media/video/cx18/cx18-streams.c +++ b/drivers/media/video/cx18/cx18-streams.c @@ -39,6 +39,7 @@ static struct file_operations cx18_v4l2_enc_fops = { .owner = THIS_MODULE, .read = cx18_v4l2_read, .open = cx18_v4l2_open, + /* FIXME change to video_ioctl2 if serialization lock can be removed */ .ioctl = cx18_v4l2_ioctl, .compat_ioctl = v4l_compat_ioctl32, .release = cx18_v4l2_close, @@ -189,14 +190,15 @@ static int cx18_prep_dev(struct cx18 *cx, int type) s->v4l2dev->type = VID_TYPE_CAPTURE | VID_TYPE_TUNER | VID_TYPE_TELETEXT | VID_TYPE_CLIPPING | VID_TYPE_SCALES | VID_TYPE_MPEG_ENCODER; - snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "cx18%d %s", - cx->num, s->name); + snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "cx18-%d", + cx->num); s->v4l2dev->minor = minor; s->v4l2dev->dev = &cx->dev->dev; s->v4l2dev->fops = cx18_stream_info[type].fops; s->v4l2dev->release = video_device_release; - + s->v4l2dev->tvnorms = V4L2_STD_ALL; + cx18_set_funcs(s->v4l2dev); return 0; } diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c index c592899a2317..5e40c6bd69b6 100644 --- a/drivers/media/video/cx2341x.c +++ b/drivers/media/video/cx2341x.c @@ -80,7 +80,7 @@ EXPORT_SYMBOL(cx2341x_mpeg_ctrls); /* Map the control ID to the correct field in the cx2341x_mpeg_params struct. Return -EINVAL if the ID is unknown, else return 0. */ -static int cx2341x_get_ctrl(struct cx2341x_mpeg_params *params, +static int cx2341x_get_ctrl(const struct cx2341x_mpeg_params *params, struct v4l2_ext_control *ctrl) { switch (ctrl->id) { @@ -420,7 +420,7 @@ static int cx2341x_ctrl_query_fill(struct v4l2_queryctrl *qctrl, return 0; } -int cx2341x_ctrl_query(struct cx2341x_mpeg_params *params, +int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params, struct v4l2_queryctrl *qctrl) { int err; @@ -580,9 +580,9 @@ int cx2341x_ctrl_query(struct cx2341x_mpeg_params *params, } EXPORT_SYMBOL(cx2341x_ctrl_query); -const char **cx2341x_ctrl_get_menu(u32 id) +const char **cx2341x_ctrl_get_menu(const struct cx2341x_mpeg_params *p, u32 id) { - static const char *mpeg_stream_type[] = { + static const char *mpeg_stream_type_without_ts[] = { "MPEG-2 Program Stream", "", "MPEG-1 System Stream", @@ -592,6 +592,16 @@ const char **cx2341x_ctrl_get_menu(u32 id) NULL }; + static const char *mpeg_stream_type_with_ts[] = { + "MPEG-2 Program Stream", + "MPEG-2 Transport Stream", + "MPEG-1 System Stream", + "MPEG-2 DVD-compatible Stream", + "MPEG-1 VCD-compatible Stream", + "MPEG-2 SVCD-compatible Stream", + NULL + }; + static const char *cx2341x_video_spatial_filter_mode_menu[] = { "Manual", "Auto", @@ -630,7 +640,8 @@ const char **cx2341x_ctrl_get_menu(u32 id) switch (id) { case V4L2_CID_MPEG_STREAM_TYPE: - return mpeg_stream_type; + return (p->capabilities & CX2341X_CAP_HAS_TS) ? + mpeg_stream_type_with_ts : mpeg_stream_type_without_ts; case V4L2_CID_MPEG_AUDIO_L1_BITRATE: case V4L2_CID_MPEG_AUDIO_L3_BITRATE: return NULL; @@ -690,7 +701,7 @@ int cx2341x_ext_ctrls(struct cx2341x_mpeg_params *params, int busy, if (err) break; if (qctrl.type == V4L2_CTRL_TYPE_MENU) - menu_items = cx2341x_ctrl_get_menu(qctrl.id); + menu_items = cx2341x_ctrl_get_menu(params, qctrl.id); err = v4l2_ctrl_check(ctrl, &qctrl, menu_items); if (err) break; @@ -933,9 +944,9 @@ int cx2341x_update(void *priv, cx2341x_mbox_func func, } EXPORT_SYMBOL(cx2341x_update); -static const char *cx2341x_menu_item(struct cx2341x_mpeg_params *p, u32 id) +static const char *cx2341x_menu_item(const struct cx2341x_mpeg_params *p, u32 id) { - const char **menu = cx2341x_ctrl_get_menu(id); + const char **menu = cx2341x_ctrl_get_menu(p, id); struct v4l2_ext_control ctrl; if (menu == NULL) @@ -952,7 +963,7 @@ invalid: return "<invalid>"; } -void cx2341x_log_status(struct cx2341x_mpeg_params *p, const char *prefix) +void cx2341x_log_status(const struct cx2341x_mpeg_params *p, const char *prefix) { int is_mpeg1 = p->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1; int temporal = p->video_temporal_filter; diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c index acdd3b6b3e7c..0f50c377aa7c 100644 --- a/drivers/media/video/cx23885/cx23885-417.c +++ b/drivers/media/video/cx23885/cx23885-417.c @@ -1173,7 +1173,7 @@ static int cx23885_querymenu(struct cx23885_dev *dev, qctrl.id = qmenu->id; cx23885_queryctrl(dev, &qctrl); return v4l2_ctrl_query_menu(qmenu, &qctrl, - cx2341x_ctrl_get_menu(qmenu->id)); + cx2341x_ctrl_get_menu(&dev->mpeg_params, qmenu->id)); } int cx23885_do_ioctl(struct inode *inode, struct file *file, int radio, diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c index 20e05f230546..fd7112c11d35 100644 --- a/drivers/media/video/cx23885/cx23885-cards.c +++ b/drivers/media/video/cx23885/cx23885-cards.c @@ -143,6 +143,10 @@ struct cx23885_board cx23885_boards[] = { .name = "Hauppauge WinTV-HVR1400", .portc = CX23885_MPEG_DVB, }, + [CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP] = { + .name = "DViCO FusionHDTV7 Dual Express", + .portc = CX23885_MPEG_DVB, + }, }; const unsigned int cx23885_bcount = ARRAY_SIZE(cx23885_boards); @@ -210,6 +214,10 @@ struct cx23885_subid cx23885_subids[] = { .subvendor = 0x0070, .subdevice = 0x8010, .card = CX23885_BOARD_HAUPPAUGE_HVR1400, + },{ + .subvendor = 0x18ac, + .subdevice = 0xd618, + .card = CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP, }, }; const unsigned int cx23885_idcount = ARRAY_SIZE(cx23885_subids); @@ -477,6 +485,11 @@ void cx23885_card_setup(struct cx23885_dev *dev) } switch (dev->board) { + case CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP: + ts2->gen_ctrl_val = 0xc; /* Serial bus + punctured clock */ + ts2->ts_clk_en_val = 0x1; /* Enable TS_CLK */ + ts2->src_sel_val = CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO; + /* break omitted intentionally */ case CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP: ts1->gen_ctrl_val = 0xc; /* Serial bus + punctured clock */ ts1->ts_clk_en_val = 0x1; /* Enable TS_CLK */ diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c index 022aa391937a..51dedb182c99 100644 --- a/drivers/media/video/cx23885/cx23885-dvb.c +++ b/drivers/media/video/cx23885/cx23885-dvb.c @@ -164,12 +164,28 @@ static struct s5h1409_config hauppauge_hvr1500q_config = { .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK, }; +static struct s5h1409_config dvico_s5h1409_config = { + .demod_address = 0x32 >> 1, + .output_mode = S5H1409_SERIAL_OUTPUT, + .gpio = S5H1409_GPIO_ON, + .qam_if = 44000, + .inversion = S5H1409_INVERSION_OFF, + .status_mode = S5H1409_DEMODLOCKING, + .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK, +}; + static struct xc5000_config hauppauge_hvr1500q_tunerconfig = { .i2c_address = 0x61, .if_khz = 5380, .tuner_callback = cx23885_tuner_callback }; +static struct xc5000_config dvico_xc5000_tunerconfig = { + .i2c_address = 0x64, + .if_khz = 5380, + .tuner_callback = cx23885_tuner_callback +}; + static struct tda829x_config tda829x_no_probe = { .probe_tuner = TDA829X_DONT_PROBE, }; @@ -453,6 +469,17 @@ static int dvb_register(struct cx23885_tsport *port) fe->ops.tuner_ops.set_config(fe, &ctl); } break; + case CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP: + i2c_bus = &dev->i2c_bus[port->nr - 1]; + + port->dvb.frontend = dvb_attach(s5h1409_attach, + &dvico_s5h1409_config, + &i2c_bus->i2c_adap); + if (port->dvb.frontend != NULL) + dvb_attach(xc5000_attach, port->dvb.frontend, + &i2c_bus->i2c_adap, + &dvico_xc5000_tunerconfig, i2c_bus); + break; default: printk("%s: The frontend of your DVB/ATSC card isn't supported yet\n", dev->name); diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index 84652210a28c..043fc4e5c586 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -915,7 +915,7 @@ static void init_controls(struct cx23885_dev *dev) /* ------------------------------------------------------------------ */ /* VIDEO IOCTLS */ -static int vidioc_g_fmt_cap(struct file *file, void *priv, +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx23885_fh *fh = priv; @@ -932,7 +932,7 @@ static int vidioc_g_fmt_cap(struct file *file, void *priv, return 0; } -static int vidioc_try_fmt_cap(struct file *file, void *priv, +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev; @@ -983,7 +983,7 @@ static int vidioc_try_fmt_cap(struct file *file, void *priv, return 0; } -static int vidioc_s_fmt_cap(struct file *file, void *priv, +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx23885_fh *fh = priv; @@ -991,7 +991,7 @@ static int vidioc_s_fmt_cap(struct file *file, void *priv, int err; dprintk(2, "%s()\n", __func__); - err = vidioc_try_fmt_cap(file, priv, f); + err = vidioc_try_fmt_vid_cap(file, priv, f); if (0 != err) return err; @@ -1025,7 +1025,7 @@ static int vidioc_querycap(struct file *file, void *priv, return 0; } -static int vidioc_enum_fmt_cap(struct file *file, void *priv, +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (unlikely(f->index >= ARRAY_SIZE(formats))) @@ -1440,13 +1440,13 @@ static struct video_device cx23885_video_template = { .fops = &video_fops, .minor = -1, .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, - .vidioc_g_fmt_cap = vidioc_g_fmt_cap, - .vidioc_try_fmt_cap = vidioc_try_fmt_cap, - .vidioc_s_fmt_cap = vidioc_s_fmt_cap, - .vidioc_g_fmt_vbi = cx23885_vbi_fmt, - .vidioc_try_fmt_vbi = cx23885_vbi_fmt, - .vidioc_s_fmt_vbi = cx23885_vbi_fmt, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, + .vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt, + .vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt, + .vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, .vidioc_qbuf = vidioc_qbuf, diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h index 32af87f25e7b..00dfdc89d641 100644 --- a/drivers/media/video/cx23885/cx23885.h +++ b/drivers/media/video/cx23885/cx23885.h @@ -63,6 +63,7 @@ #define CX23885_BOARD_HAUPPAUGE_HVR1200 7 #define CX23885_BOARD_HAUPPAUGE_HVR1700 8 #define CX23885_BOARD_HAUPPAUGE_HVR1400 9 +#define CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP 10 /* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM B/G/H/LC */ #define CX23885_NORMS (\ diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index 607efdcd22f8..1da6f134888d 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -433,7 +433,7 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp int chroma = vid_input & 0xf00; if ((vid_input & ~0xff0) || - luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 || + luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA8 || chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) { v4l_err(client, "0x%04x is not a valid video input!\n", vid_input); diff --git a/drivers/media/video/cx25840/cx25840-firmware.c b/drivers/media/video/cx25840/cx25840-firmware.c index 620d295947ab..8d489a4b9570 100644 --- a/drivers/media/video/cx25840/cx25840-firmware.c +++ b/drivers/media/video/cx25840/cx25840-firmware.c @@ -79,7 +79,7 @@ static int check_fw_load(struct i2c_client *client, int size) return 0; } -static int fw_write(struct i2c_client *client, u8 *data, int size) +static int fw_write(struct i2c_client *client, const u8 *data, int size) { if (i2c_master_send(client, data, size) < size) { v4l_err(client, "firmware load i2c failure\n"); @@ -93,7 +93,8 @@ int cx25840_loadfw(struct i2c_client *client) { struct cx25840_state *state = i2c_get_clientdata(client); const struct firmware *fw = NULL; - u8 buffer[4], *ptr; + u8 buffer[FWSEND]; + const u8 *ptr; int size, retval; if (state->is_cx23885) @@ -108,29 +109,23 @@ int cx25840_loadfw(struct i2c_client *client) buffer[0] = 0x08; buffer[1] = 0x02; - buffer[2] = fw->data[0]; - buffer[3] = fw->data[1]; - retval = fw_write(client, buffer, 4); - if (retval < 0) { - release_firmware(fw); - return retval; - } - - size = fw->size - 2; + size = fw->size; ptr = fw->data; while (size > 0) { - ptr[0] = 0x08; - ptr[1] = 0x02; - retval = fw_write(client, ptr, min(FWSEND, size + 2)); + int len = min(FWSEND - 2, size); + + memcpy(buffer + 2, ptr, len); + + retval = fw_write(client, buffer, len + 2); if (retval < 0) { release_firmware(fw); return retval; } - size -= FWSEND - 2; - ptr += FWSEND - 2; + size -= len; + ptr += len; } end_fw_load(client); diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c index e976fc6bef7c..80c8883e54b5 100644 --- a/drivers/media/video/cx88/cx88-alsa.c +++ b/drivers/media/video/cx88/cx88-alsa.c @@ -332,6 +332,12 @@ static int snd_cx88_pcm_open(struct snd_pcm_substream *substream) struct snd_pcm_runtime *runtime = substream->runtime; int err; + if (!chip) { + printk(KERN_ERR "BUG: cx88 can't find device struct." + " Can't proceed with open\n"); + return -ENODEV; + } + err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS); if (err < 0) goto _error; diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c index 6c0c94c5ef91..bfdca5847764 100644 --- a/drivers/media/video/cx88/cx88-blackbird.c +++ b/drivers/media/video/cx88/cx88-blackbird.c @@ -715,7 +715,8 @@ static int vidioc_querymenu (struct file *file, void *priv, qctrl.id = qmenu->id; blackbird_queryctrl(dev, &qctrl); - return v4l2_ctrl_query_menu(qmenu, &qctrl, cx2341x_ctrl_get_menu(qmenu->id)); + return v4l2_ctrl_query_menu(qmenu, &qctrl, + cx2341x_ctrl_get_menu(&dev->params, qmenu->id)); } static int vidioc_querycap (struct file *file, void *priv, @@ -737,7 +738,7 @@ static int vidioc_querycap (struct file *file, void *priv, return 0; } -static int vidioc_enum_fmt_cap (struct file *file, void *priv, +static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (f->index != 0) @@ -749,7 +750,7 @@ static int vidioc_enum_fmt_cap (struct file *file, void *priv, return 0; } -static int vidioc_g_fmt_cap (struct file *file, void *priv, +static int vidioc_g_fmt_vid_cap (struct file *file, void *priv, struct v4l2_format *f) { struct cx8802_fh *fh = priv; @@ -768,7 +769,7 @@ static int vidioc_g_fmt_cap (struct file *file, void *priv, return 0; } -static int vidioc_try_fmt_cap (struct file *file, void *priv, +static int vidioc_try_fmt_vid_cap (struct file *file, void *priv, struct v4l2_format *f) { struct cx8802_fh *fh = priv; @@ -784,7 +785,7 @@ static int vidioc_try_fmt_cap (struct file *file, void *priv, return 0; } -static int vidioc_s_fmt_cap (struct file *file, void *priv, +static int vidioc_s_fmt_vid_cap (struct file *file, void *priv, struct v4l2_format *f) { struct cx8802_fh *fh = priv; @@ -1181,10 +1182,10 @@ static struct video_device cx8802_mpeg_template = .minor = -1, .vidioc_querymenu = vidioc_querymenu, .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, - .vidioc_g_fmt_cap = vidioc_g_fmt_cap, - .vidioc_try_fmt_cap = vidioc_try_fmt_cap, - .vidioc_s_fmt_cap = vidioc_s_fmt_cap, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, .vidioc_qbuf = vidioc_qbuf, diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index eea23f95edb7..0fed5cd2ccea 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -1045,7 +1045,7 @@ static void init_controls(struct cx88_core *core) /* ------------------------------------------------------------------ */ /* VIDEO IOCTLS */ -static int vidioc_g_fmt_cap (struct file *file, void *priv, +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx8800_fh *fh = priv; @@ -1061,7 +1061,7 @@ static int vidioc_g_fmt_cap (struct file *file, void *priv, return 0; } -static int vidioc_try_fmt_cap (struct file *file, void *priv, +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx88_core *core = ((struct cx8800_fh *)priv)->dev->core; @@ -1112,11 +1112,11 @@ static int vidioc_try_fmt_cap (struct file *file, void *priv, return 0; } -static int vidioc_s_fmt_cap (struct file *file, void *priv, +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx8800_fh *fh = priv; - int err = vidioc_try_fmt_cap (file,priv,f); + int err = vidioc_try_fmt_vid_cap (file,priv,f); if (0 != err) return err; @@ -1147,7 +1147,7 @@ static int vidioc_querycap (struct file *file, void *priv, return 0; } -static int vidioc_enum_fmt_cap (struct file *file, void *priv, +static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (unlikely(f->index >= ARRAY_SIZE(formats))) @@ -1690,13 +1690,13 @@ static struct video_device cx8800_video_template = .fops = &video_fops, .minor = -1, .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, - .vidioc_g_fmt_cap = vidioc_g_fmt_cap, - .vidioc_try_fmt_cap = vidioc_try_fmt_cap, - .vidioc_s_fmt_cap = vidioc_s_fmt_cap, - .vidioc_g_fmt_vbi = cx8800_vbi_fmt, - .vidioc_try_fmt_vbi = cx8800_vbi_fmt, - .vidioc_s_fmt_vbi = cx8800_vbi_fmt, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, + .vidioc_g_fmt_vbi_cap = cx8800_vbi_fmt, + .vidioc_try_fmt_vbi_cap = cx8800_vbi_fmt, + .vidioc_s_fmt_vbi_cap = cx8800_vbi_fmt, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, .vidioc_qbuf = vidioc_qbuf, diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c index 92b2a6db4fdc..3c006103c1eb 100644 --- a/drivers/media/video/em28xx/em28xx-audio.c +++ b/drivers/media/video/em28xx/em28xx-audio.c @@ -268,6 +268,12 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream) dprintk("opening device and trying to acquire exclusive lock\n"); + if (!dev) { + printk(KERN_ERR "BUG: em28xx can't find device struct." + " Can't proceed with open\n"); + return -ENODEV; + } + /* Sets volume, mute, etc */ dev->mute = 0; @@ -415,6 +421,12 @@ static int em28xx_audio_init(struct em28xx *dev) static int devnr; int ret, err; + if (dev->has_audio_class) { + /* This device does not support the extension (in this case + the device is expecting the snd-usb-audio module */ + return 0; + } + printk(KERN_INFO "em28xx-audio.c: probing for em28x1 " "non standard usbaudio\n"); printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus " @@ -458,6 +470,12 @@ static int em28xx_audio_fini(struct em28xx *dev) if (dev == NULL) return 0; + if (dev->has_audio_class) { + /* This device does not support the extension (in this case + the device is expecting the snd-usb-audio module */ + return 0; + } + if (dev->adev) { snd_card_free(dev->adev->sndcard); kfree(dev->adev); diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 3e4f3c7e92e7..c22c90301d85 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -157,6 +157,7 @@ struct em28xx_board em28xx_boards[] = { .tda9887_conf = TDA9887_PRESENT, .tuner_type = TUNER_XC2028, .mts_firmware = 1, + .has_dvb = 1, .decoder = EM28XX_TVP5150, .input = { { .type = EM28XX_VMUX_TELEVISION, @@ -195,6 +196,29 @@ struct em28xx_board em28xx_boards[] = { .amux = 1, } }, }, + [EM2880_BOARD_PINNACLE_PCTV_HD_PRO] = { + .name = "Pinnacle PCTV HD Pro Stick", + .vchannels = 3, + .tda9887_conf = TDA9887_PRESENT, + .tuner_type = TUNER_XC2028, + .mts_firmware = 1, + .has_12mhz_i2s = 1, + .has_dvb = 1, + .decoder = EM28XX_TVP5150, + .input = { { + .type = EM28XX_VMUX_TELEVISION, + .vmux = TVP5150_COMPOSITE0, + .amux = 0, + }, { + .type = EM28XX_VMUX_COMPOSITE1, + .vmux = TVP5150_COMPOSITE1, + .amux = 1, + }, { + .type = EM28XX_VMUX_SVIDEO, + .vmux = TVP5150_SVIDEO, + .amux = 1, + } }, + }, [EM2880_BOARD_TERRATEC_HYBRID_XS] = { .name = "Terratec Hybrid XS", .vchannels = 3, @@ -416,6 +440,8 @@ struct usb_device_id em28xx_id_table [] = { .driver_info = EM2820_BOARD_PINNACLE_DVC_90 }, { USB_DEVICE(0x2304, 0x021a), .driver_info = EM2820_BOARD_PINNACLE_DVC_90 }, + { USB_DEVICE(0x2304, 0x0227), + .driver_info = EM2880_BOARD_PINNACLE_PCTV_HD_PRO }, { USB_DEVICE(0x2040, 0x6500), .driver_info = EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 }, { USB_DEVICE(0x2040, 0x6502), @@ -524,6 +550,9 @@ void em28xx_pre_card_setup(struct em28xx *dev) rc = em28xx_read_reg(dev, EM28XX_R0A_CHIPID); if (rc > 0) { switch (rc) { + case CHIP_ID_EM2860: + em28xx_info("chip ID is em2860\n"); + break; case CHIP_ID_EM2883: em28xx_info("chip ID is em2882/em2883\n"); dev->wait_after_write = 0; @@ -540,6 +569,7 @@ void em28xx_pre_card_setup(struct em28xx *dev) case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900: case EM2880_BOARD_TERRATEC_HYBRID_XS: case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950: + case EM2880_BOARD_PINNACLE_PCTV_HD_PRO: em28xx_write_regs(dev, EM28XX_R0F_XCLK, "\x27", 1); em28xx_write_regs(dev, EM28XX_R06_I2C_CLK, "\x40", 1); msleep(50); @@ -573,6 +603,7 @@ static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl) ctl->demod = XC3028_FE_ZARLINK456; break; case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950: + case EM2880_BOARD_PINNACLE_PCTV_HD_PRO: /* FIXME: Better to specify the needed IF */ ctl->demod = XC3028_FE_DEFAULT; break; diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c index 8cf4983f0039..9327d78fcf43 100644 --- a/drivers/media/video/em28xx/em28xx-dvb.c +++ b/drivers/media/video/em28xx/em28xx-dvb.c @@ -5,6 +5,7 @@ (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com> - Fixes for the driver to properly work with HVR-950 + - Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick (c) 2008 Aidan Thornton <makosoft@googlemail.com> @@ -382,6 +383,11 @@ static int dvb_init(struct em28xx *dev) int result = 0; struct em28xx_dvb *dvb; + if (!dev->has_dvb) { + /* This device does not support the extension */ + return 0; + } + dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL); if (dvb == NULL) { @@ -394,6 +400,7 @@ static int dvb_init(struct em28xx *dev) /* init frontend */ switch (dev->model) { case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950: + case EM2880_BOARD_PINNACLE_PCTV_HD_PRO: dvb->frontend = dvb_attach(lgdt330x_attach, &em2880_lgdt3303_dev, &dev->i2c_adap); @@ -444,6 +451,11 @@ out_free: static int dvb_fini(struct em28xx *dev) { + if (!dev->has_dvb) { + /* This device does not support the extension */ + return 0; + } + if (dev->dvb) { unregister_dvb(dev->dvb); dev->dvb = NULL; diff --git a/drivers/media/video/em28xx/em28xx-reg.h b/drivers/media/video/em28xx/em28xx-reg.h index 9058bed07953..fac1ab23f621 100644 --- a/drivers/media/video/em28xx/em28xx-reg.h +++ b/drivers/media/video/em28xx/em28xx-reg.h @@ -84,5 +84,6 @@ /* FIXME: Need to be populated with the other chip ID's */ enum em28xx_chip_id { + CHIP_ID_EM2860 = 34, CHIP_ID_EM2883 = 36, }; diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index fb163ecd9216..1c3e8b6291ea 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -683,7 +683,7 @@ static void get_scale(struct em28xx *dev, IOCTL vidioc handling ------------------------------------------------------------------*/ -static int vidioc_g_fmt_cap(struct file *file, void *priv, +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct em28xx_fh *fh = priv; @@ -706,7 +706,7 @@ static int vidioc_g_fmt_cap(struct file *file, void *priv, return 0; } -static int vidioc_try_fmt_cap(struct file *file, void *priv, +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct em28xx_fh *fh = priv; @@ -766,7 +766,7 @@ static int vidioc_try_fmt_cap(struct file *file, void *priv, return 0; } -static int vidioc_s_fmt_cap(struct file *file, void *priv, +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct em28xx_fh *fh = priv; @@ -777,7 +777,7 @@ static int vidioc_s_fmt_cap(struct file *file, void *priv, if (rc < 0) return rc; - vidioc_try_fmt_cap(file, priv, f); + vidioc_try_fmt_vid_cap(file, priv, f); mutex_lock(&dev->lock); @@ -826,7 +826,7 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm) /* Adjusts width/height, if needed */ f.fmt.pix.width = dev->width; f.fmt.pix.height = dev->height; - vidioc_try_fmt_cap(file, priv, &f); + vidioc_try_fmt_vid_cap(file, priv, &f); mutex_lock(&dev->lock); @@ -1277,7 +1277,7 @@ static int vidioc_querycap(struct file *file, void *priv, return 0; } -static int vidioc_enum_fmt_cap(struct file *file, void *priv, +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *fmtd) { if (fmtd->index != 0) @@ -1292,7 +1292,7 @@ static int vidioc_enum_fmt_cap(struct file *file, void *priv, } /* Sliced VBI ioctls */ -static int vidioc_g_fmt_vbi_capture(struct file *file, void *priv, +static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_format *f) { struct em28xx_fh *fh = priv; @@ -1316,7 +1316,7 @@ static int vidioc_g_fmt_vbi_capture(struct file *file, void *priv, return rc; } -static int vidioc_try_set_vbi_capture(struct file *file, void *priv, +static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv, struct v4l2_format *f) { struct em28xx_fh *fh = priv; @@ -1776,17 +1776,17 @@ static const struct video_device em28xx_video_template = { .minor = -1, .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, - .vidioc_g_fmt_cap = vidioc_g_fmt_cap, - .vidioc_try_fmt_cap = vidioc_try_fmt_cap, - .vidioc_s_fmt_cap = vidioc_s_fmt_cap, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, .vidioc_g_audio = vidioc_g_audio, .vidioc_s_audio = vidioc_s_audio, .vidioc_cropcap = vidioc_cropcap, - .vidioc_g_fmt_vbi_capture = vidioc_g_fmt_vbi_capture, - .vidioc_try_fmt_vbi_capture = vidioc_try_set_vbi_capture, - .vidioc_s_fmt_vbi_capture = vidioc_try_set_vbi_capture, + .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap, + .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap, + .vidioc_s_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, @@ -1848,32 +1848,28 @@ static DEFINE_MUTEX(em28xx_extension_devlist_lock); int em28xx_register_extension(struct em28xx_ops *ops) { - struct em28xx *h, *dev = NULL; - - list_for_each_entry(h, &em28xx_devlist, devlist) - dev = h; + struct em28xx *dev = NULL; mutex_lock(&em28xx_extension_devlist_lock); list_add_tail(&ops->next, &em28xx_extension_devlist); - if (dev) - ops->init(dev); - + list_for_each_entry(dev, &em28xx_devlist, devlist) { + if (dev) + ops->init(dev); + } printk(KERN_INFO "Em28xx: Initialized (%s) extension\n", ops->name); mutex_unlock(&em28xx_extension_devlist_lock); - return 0; } EXPORT_SYMBOL(em28xx_register_extension); void em28xx_unregister_extension(struct em28xx_ops *ops) { - struct em28xx *h, *dev = NULL; - - list_for_each_entry(h, &em28xx_devlist, devlist) - dev = h; + struct em28xx *dev = NULL; - if (dev) - ops->fini(dev); + list_for_each_entry(dev, &em28xx_devlist, devlist) { + if (dev) + ops->fini(dev); + } mutex_lock(&em28xx_extension_devlist_lock); printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name); diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 002f170b211a..c3b5f460b211 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -55,6 +55,7 @@ #define EM2820_BOARD_PROLINK_PLAYTV_USB2 14 #define EM2800_BOARD_VGEAR_POCKETTV 15 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950 16 +#define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17 /* Limits minimum and default number of buffers */ #define EM28XX_MIN_BUF 4 diff --git a/drivers/media/video/ivtv/ivtv-cards.c b/drivers/media/video/ivtv/ivtv-cards.c index 4fb8faefe2ce..4e05f91a9100 100644 --- a/drivers/media/video/ivtv/ivtv-cards.c +++ b/drivers/media/video/ivtv/ivtv-cards.c @@ -40,7 +40,7 @@ #define MSP_MONO MSP_INPUT(MSP_IN_MONO, MSP_IN_TUNER1, \ MSP_DSP_IN_SCART, MSP_DSP_IN_SCART) -#define V4L2_STD_NOT_MN (V4L2_STD_PAL|V4L2_STD_SECAM) +#define V4L2_STD_PAL_SECAM (V4L2_STD_PAL|V4L2_STD_SECAM) /* usual i2c tuner addresses to probe */ static struct ivtv_card_tuner_i2c ivtv_i2c_std = { @@ -300,7 +300,7 @@ static const struct ivtv_card ivtv_card_mpg600 = { .gpio_audio_detect = { .mask = 0x0900, .stereo = 0x0100 }, .tuners = { /* The PAL tuner is confirmed */ - { .std = V4L2_STD_NOT_MN, .tuner = TUNER_PHILIPS_FQ1216ME }, + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FQ1216ME }, { .std = V4L2_STD_ALL, .tuner = TUNER_PHILIPS_FQ1286 }, }, .pci_list = ivtv_pci_mpg600, @@ -341,7 +341,7 @@ static const struct ivtv_card ivtv_card_mpg160 = { .lang1 = 0x0004, .lang2 = 0x0000, .both = 0x0008 }, .gpio_audio_detect = { .mask = 0x0900, .stereo = 0x0100 }, .tuners = { - { .std = V4L2_STD_NOT_MN, .tuner = TUNER_PHILIPS_FQ1216ME }, + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FQ1216ME }, { .std = V4L2_STD_ALL, .tuner = TUNER_PHILIPS_FQ1286 }, }, .pci_list = ivtv_pci_mpg160, @@ -377,7 +377,7 @@ static const struct ivtv_card ivtv_card_pg600 = { { IVTV_CARD_INPUT_LINE_IN1, CX25840_AUDIO_SERIAL }, }, .tuners = { - { .std = V4L2_STD_NOT_MN, .tuner = TUNER_PHILIPS_FQ1216ME }, + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FQ1216ME }, { .std = V4L2_STD_ALL, .tuner = TUNER_PHILIPS_FQ1286 }, }, .pci_list = ivtv_pci_pg600, @@ -418,7 +418,7 @@ static const struct ivtv_card ivtv_card_avc2410 = { on the country/region setting of the user to decide which tuner is available. */ .tuners = { - { .std = V4L2_STD_NOT_MN, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, { .std = V4L2_STD_ALL - V4L2_STD_NTSC_M_JP, .tuner = TUNER_PHILIPS_FM1236_MK3 }, { .std = V4L2_STD_NTSC_M_JP, .tuner = TUNER_PHILIPS_FQ1286 }, @@ -492,7 +492,7 @@ static const struct ivtv_card ivtv_card_tg5000tv = { .gpio_video_input = { .mask = 0x0030, .tuner = 0x0000, .composite = 0x0010, .svideo = 0x0020 }, .tuners = { - { .std = V4L2_STD_525_60|V4L2_STD_MN, .tuner = TUNER_PHILIPS_FQ1286 }, + { .std = V4L2_STD_MN, .tuner = TUNER_PHILIPS_FQ1286 }, }, .pci_list = ivtv_pci_tg5000tv, .i2c = &ivtv_i2c_std, @@ -523,7 +523,7 @@ static const struct ivtv_card ivtv_card_va2000 = { { IVTV_CARD_INPUT_AUD_TUNER, MSP_TUNER }, }, .tuners = { - { .std = V4L2_STD_525_60|V4L2_STD_MN, .tuner = TUNER_PHILIPS_FQ1286 }, + { .std = V4L2_STD_MN, .tuner = TUNER_PHILIPS_FQ1286 }, }, .pci_list = ivtv_pci_va2000, .i2c = &ivtv_i2c_std, @@ -567,7 +567,7 @@ static const struct ivtv_card ivtv_card_cx23416gyc = { .gpio_audio_freq = { .mask = 0xc000, .f32000 = 0x0000, .f44100 = 0x4000, .f48000 = 0x8000 }, .tuners = { - { .std = V4L2_STD_NOT_MN, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, { .std = V4L2_STD_ALL, .tuner = TUNER_PHILIPS_FM1236_MK3 }, }, .pci_list = ivtv_pci_cx23416gyc, @@ -599,7 +599,7 @@ static const struct ivtv_card ivtv_card_cx23416gyc_nogr = { .gpio_audio_freq = { .mask = 0xc000, .f32000 = 0x0000, .f44100 = 0x4000, .f48000 = 0x8000 }, .tuners = { - { .std = V4L2_STD_NOT_MN, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, { .std = V4L2_STD_ALL, .tuner = TUNER_PHILIPS_FM1236_MK3 }, }, .i2c = &ivtv_i2c_std, @@ -629,7 +629,7 @@ static const struct ivtv_card ivtv_card_cx23416gyc_nogrycs = { .gpio_audio_freq = { .mask = 0xc000, .f32000 = 0x0000, .f44100 = 0x4000, .f48000 = 0x8000 }, .tuners = { - { .std = V4L2_STD_NOT_MN, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, { .std = V4L2_STD_ALL, .tuner = TUNER_PHILIPS_FM1236_MK3 }, }, .i2c = &ivtv_i2c_std, @@ -669,7 +669,7 @@ static const struct ivtv_card ivtv_card_gv_mvprx = { .gpio_audio_input = { .mask = 0xffff, .tuner = 0x0200, .linein = 0x0300 }, .tuners = { /* This card has the Panasonic VP27 tuner */ - { .std = V4L2_STD_525_60|V4L2_STD_MN, .tuner = TUNER_PANASONIC_VP27 }, + { .std = V4L2_STD_MN, .tuner = TUNER_PANASONIC_VP27 }, }, .pci_list = ivtv_pci_gv_mvprx, .i2c = &ivtv_i2c_std, @@ -706,7 +706,7 @@ static const struct ivtv_card ivtv_card_gv_mvprx2e = { .gpio_audio_input = { .mask = 0xffff, .tuner = 0x0200, .linein = 0x0300 }, .tuners = { /* This card has the Panasonic VP27 tuner */ - { .std = V4L2_STD_525_60|V4L2_STD_MN, .tuner = TUNER_PANASONIC_VP27 }, + { .std = V4L2_STD_MN, .tuner = TUNER_PANASONIC_VP27 }, }, .pci_list = ivtv_pci_gv_mvprx2e, .i2c = &ivtv_i2c_std, @@ -741,7 +741,7 @@ static const struct ivtv_card ivtv_card_gotview_pci_dvd = { .gpio_init = { .direction = 0xf000, .initial_value = 0xA000 }, .tuners = { /* This card has a Philips FQ1216ME MK3 tuner */ - { .std = V4L2_STD_NOT_MN, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, }, .pci_list = ivtv_pci_gotview_pci_dvd, .i2c = &ivtv_i2c_std, @@ -780,7 +780,7 @@ static const struct ivtv_card ivtv_card_gotview_pci_dvd2 = { .gpio_audio_input = { .mask = 0x0800, .tuner = 0, .linein = 0, .radio = 0x0800 }, .tuners = { /* This card has a Philips FQ1216ME MK5 tuner */ - { .std = V4L2_STD_NOT_MN, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, + { .std = V4L2_STD_PAL_SECAM, .tuner = TUNER_PHILIPS_FM1216ME_MK3 }, }, .pci_list = ivtv_pci_gotview_pci_dvd2, .i2c = &ivtv_i2c_std, @@ -858,7 +858,7 @@ static const struct ivtv_card ivtv_card_dctmvtvp1 = { .gpio_video_input = { .mask = 0x0030, .tuner = 0x0000, .composite = 0x0010, .svideo = 0x0020}, .tuners = { - { .std = V4L2_STD_525_60|V4L2_STD_MN, .tuner = TUNER_PHILIPS_FQ1286 }, + { .std = V4L2_STD_MN, .tuner = TUNER_PHILIPS_FQ1286 }, }, .pci_list = ivtv_pci_dctmvtvp1, .i2c = &ivtv_i2c_std, @@ -923,7 +923,6 @@ static const struct ivtv_card ivtv_card_club3d = { { IVTV_CARD_INPUT_LINE_IN1, CX25840_AUDIO_SERIAL }, }, .radio_input = { IVTV_CARD_INPUT_AUD_TUNER, CX25840_AUDIO5 }, - .gpio_init = { .direction = 0x1000, .initial_value = 0x1000 }, /* tuner reset */ .xceive_pin = 12, .tuners = { { .std = V4L2_STD_ALL, .tuner = TUNER_XC2028 }, @@ -959,7 +958,7 @@ static const struct ivtv_card ivtv_card_avertv_mce116 = { { IVTV_CARD_INPUT_LINE_IN1, CX25840_AUDIO_SERIAL, 1 }, }, /* enable line-in */ - .gpio_init = { .direction = 0xe400, .initial_value = 0x4400 }, + .gpio_init = { .direction = 0xe000, .initial_value = 0x4000 }, .xceive_pin = 10, .tuners = { { .std = V4L2_STD_ALL, .tuner = TUNER_XC2028 }, @@ -1001,7 +1000,7 @@ static const struct ivtv_card ivtv_card_aver_pvr150 = { .gpio_audio_input = { .mask = 0x0800, .tuner = 0, .linein = 0, .radio = 0x0800 }, .tuners = { /* This card has a Partsnic PTI-5NF05 tuner */ - { .std = V4L2_STD_525_60|V4L2_STD_MN, .tuner = TUNER_TCL_2002N }, + { .std = V4L2_STD_MN, .tuner = TUNER_TCL_2002N }, }, .pci_list = ivtv_pci_aver_pvr150, .i2c = &ivtv_i2c_radio, @@ -1069,7 +1068,7 @@ static const struct ivtv_card ivtv_card_asus_falcon2 = { }, .radio_input = { IVTV_CARD_INPUT_AUD_TUNER, CX25840_AUDIO_SERIAL, M52790_IN_TUNER }, .tuners = { - { .std = V4L2_STD_525_60|V4L2_STD_MN, .tuner = TUNER_PHILIPS_FM1236_MK3 }, + { .std = V4L2_STD_MN, .tuner = TUNER_PHILIPS_FM1236_MK3 }, }, .pci_list = ivtv_pci_asus_falcon2, .i2c = &ivtv_i2c_std, @@ -1102,7 +1101,7 @@ static const struct ivtv_card ivtv_card_aver_m104 = { }, .radio_input = { IVTV_CARD_INPUT_AUD_TUNER, CX25840_AUDIO_SERIAL, 2 }, /* enable line-in + reset tuner */ - .gpio_init = { .direction = 0xe400, .initial_value = 0x4000 }, + .gpio_init = { .direction = 0xe000, .initial_value = 0x4000 }, .xceive_pin = 10, .tuners = { { .std = V4L2_STD_ALL, .tuner = TUNER_XC2028 }, @@ -1111,6 +1110,41 @@ static const struct ivtv_card ivtv_card_aver_m104 = { .i2c = &ivtv_i2c_std, }; +/* ------------------------------------------------------------------------- */ + +/* Buffalo PC-MV5L/PCI cards */ + +static const struct ivtv_card_pci_info ivtv_pci_buffalo[] = { + { PCI_DEVICE_ID_IVTV16, IVTV_PCI_ID_MELCO, 0x052b }, + { 0, 0, 0 } +}; + +static const struct ivtv_card ivtv_card_buffalo = { + .type = IVTV_CARD_BUFFALO_MV5L, + .name = "Buffalo PC-MV5L/PCI", + .v4l2_capabilities = IVTV_CAP_ENCODER, + .hw_video = IVTV_HW_CX25840, + .hw_audio = IVTV_HW_CX25840, + .hw_audio_ctrl = IVTV_HW_CX25840, + .hw_all = IVTV_HW_CX25840 | IVTV_HW_TUNER, + .video_inputs = { + { IVTV_CARD_INPUT_VID_TUNER, 0, CX25840_COMPOSITE2 }, + { IVTV_CARD_INPUT_SVIDEO1, 1, + CX25840_SVIDEO_LUMA3 | CX25840_SVIDEO_CHROMA4 }, + { IVTV_CARD_INPUT_COMPOSITE1, 1, CX25840_COMPOSITE1 }, + }, + .audio_inputs = { + { IVTV_CARD_INPUT_AUD_TUNER, CX25840_AUDIO5 }, + { IVTV_CARD_INPUT_LINE_IN1, CX25840_AUDIO_SERIAL }, + }, + .xceive_pin = 12, + .tuners = { + { .std = V4L2_STD_ALL, .tuner = TUNER_XC2028 }, + }, + .pci_list = ivtv_pci_buffalo, + .i2c = &ivtv_i2c_std, +}; + static const struct ivtv_card *ivtv_card_list[] = { &ivtv_card_pvr250, &ivtv_card_pvr350, @@ -1137,6 +1171,7 @@ static const struct ivtv_card *ivtv_card_list[] = { &ivtv_card_aver_pvr150, &ivtv_card_aver_ezmaker, &ivtv_card_aver_m104, + &ivtv_card_buffalo, /* Variations of standard cards but with the same PCI IDs. These cards must come last in this list. */ diff --git a/drivers/media/video/ivtv/ivtv-cards.h b/drivers/media/video/ivtv/ivtv-cards.h index 748485dcebbd..381af1bceef8 100644 --- a/drivers/media/video/ivtv/ivtv-cards.h +++ b/drivers/media/video/ivtv/ivtv-cards.h @@ -49,7 +49,8 @@ #define IVTV_CARD_AVER_PVR150PLUS 22 /* AVerMedia PVR-150 Plus */ #define IVTV_CARD_AVER_EZMAKER 23 /* AVerMedia EZMaker PCI Deluxe */ #define IVTV_CARD_AVER_M104 24 /* AverMedia M104 miniPCI card */ -#define IVTV_CARD_LAST 24 +#define IVTV_CARD_BUFFALO_MV5L 25 /* Buffalo PC-MV5L/PCI card */ +#define IVTV_CARD_LAST 25 /* Variants of existing cards but with the same PCI IDs. The driver detects these based on other device information. diff --git a/drivers/media/video/ivtv/ivtv-controls.c b/drivers/media/video/ivtv/ivtv-controls.c index c7e449f6397b..6a5b70912959 100644 --- a/drivers/media/video/ivtv/ivtv-controls.c +++ b/drivers/media/video/ivtv/ivtv-controls.c @@ -47,12 +47,12 @@ static const u32 *ctrl_classes[] = { NULL }; -static int ivtv_queryctrl(struct ivtv *itv, struct v4l2_queryctrl *qctrl) + +int ivtv_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl) { + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; const char *name; - IVTV_DEBUG_IOCTL("VIDIOC_QUERYCTRL(%08x)\n", qctrl->id); - qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id); if (qctrl->id == 0) return -EINVAL; @@ -87,20 +87,20 @@ static int ivtv_queryctrl(struct ivtv *itv, struct v4l2_queryctrl *qctrl) return 0; } -static int ivtv_querymenu(struct ivtv *itv, struct v4l2_querymenu *qmenu) +int ivtv_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu) { + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; struct v4l2_queryctrl qctrl; qctrl.id = qmenu->id; - ivtv_queryctrl(itv, &qctrl); - return v4l2_ctrl_query_menu(qmenu, &qctrl, cx2341x_ctrl_get_menu(qmenu->id)); + ivtv_queryctrl(file, fh, &qctrl); + return v4l2_ctrl_query_menu(qmenu, &qctrl, + cx2341x_ctrl_get_menu(&itv->params, qmenu->id)); } -static int ivtv_s_ctrl(struct ivtv *itv, struct v4l2_control *vctrl) +int ivtv_s_ctrl(struct file *file, void *fh, struct v4l2_control *vctrl) { - s32 v = vctrl->value; - - IVTV_DEBUG_IOCTL("VIDIOC_S_CTRL(%08x, %x)\n", vctrl->id, v); + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; switch (vctrl->id) { /* Standard V4L2 controls */ @@ -119,15 +119,15 @@ static int ivtv_s_ctrl(struct ivtv *itv, struct v4l2_control *vctrl) return ivtv_i2c_hw(itv, itv->card->hw_audio_ctrl, VIDIOC_S_CTRL, vctrl); default: - IVTV_DEBUG_IOCTL("invalid control %x\n", vctrl->id); + IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id); return -EINVAL; } return 0; } -static int ivtv_g_ctrl(struct ivtv *itv, struct v4l2_control *vctrl) +int ivtv_g_ctrl(struct file *file, void *fh, struct v4l2_control *vctrl) { - IVTV_DEBUG_IOCTL("VIDIOC_G_CTRL(%08x)\n", vctrl->id); + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; switch (vctrl->id) { /* Standard V4L2 controls */ @@ -145,7 +145,7 @@ static int ivtv_g_ctrl(struct ivtv *itv, struct v4l2_control *vctrl) case V4L2_CID_AUDIO_LOUDNESS: return ivtv_i2c_hw(itv, itv->card->hw_audio_ctrl, VIDIOC_G_CTRL, vctrl); default: - IVTV_DEBUG_IOCTL("invalid control %x\n", vctrl->id); + IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id); return -EINVAL; } return 0; @@ -191,119 +191,93 @@ static int ivtv_setup_vbi_fmt(struct ivtv *itv, enum v4l2_mpeg_stream_vbi_fmt fm return 0; } -int ivtv_control_ioctls(struct ivtv *itv, unsigned int cmd, void *arg) +int ivtv_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) { + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; struct v4l2_control ctrl; - switch (cmd) { - case VIDIOC_QUERYMENU: - IVTV_DEBUG_IOCTL("VIDIOC_QUERYMENU\n"); - return ivtv_querymenu(itv, arg); - - case VIDIOC_QUERYCTRL: - return ivtv_queryctrl(itv, arg); - - case VIDIOC_S_CTRL: - return ivtv_s_ctrl(itv, arg); - - case VIDIOC_G_CTRL: - return ivtv_g_ctrl(itv, arg); - - case VIDIOC_S_EXT_CTRLS: - { - struct v4l2_ext_controls *c = arg; - - if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { - int i; - int err = 0; - - for (i = 0; i < c->count; i++) { - ctrl.id = c->controls[i].id; - ctrl.value = c->controls[i].value; - err = ivtv_s_ctrl(itv, &ctrl); - c->controls[i].value = ctrl.value; - if (err) { - c->error_idx = i; - break; - } - } - return err; - } - IVTV_DEBUG_IOCTL("VIDIOC_S_EXT_CTRLS\n"); - if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) { - static u32 freqs[3] = { 44100, 48000, 32000 }; - struct cx2341x_mpeg_params p = itv->params; - int err = cx2341x_ext_ctrls(&p, atomic_read(&itv->capturing), arg, cmd); - unsigned idx; - - if (err) - return err; - - if (p.video_encoding != itv->params.video_encoding) { - int is_mpeg1 = p.video_encoding == - V4L2_MPEG_VIDEO_ENCODING_MPEG_1; - struct v4l2_format fmt; - - /* fix videodecoder resolution */ - fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - fmt.fmt.pix.width = itv->params.width / (is_mpeg1 ? 2 : 1); - fmt.fmt.pix.height = itv->params.height; - itv->video_dec_func(itv, VIDIOC_S_FMT, &fmt); - } - err = cx2341x_update(itv, ivtv_api_func, &itv->params, &p); - if (!err && itv->params.stream_vbi_fmt != p.stream_vbi_fmt) { - err = ivtv_setup_vbi_fmt(itv, p.stream_vbi_fmt); + if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { + int i; + int err = 0; + + for (i = 0; i < c->count; i++) { + ctrl.id = c->controls[i].id; + ctrl.value = c->controls[i].value; + err = ivtv_g_ctrl(file, fh, &ctrl); + c->controls[i].value = ctrl.value; + if (err) { + c->error_idx = i; + break; } - itv->params = p; - itv->dualwatch_stereo_mode = p.audio_properties & 0x0300; - idx = p.audio_properties & 0x03; - /* The audio clock of the digitizer must match the codec sample - rate otherwise you get some very strange effects. */ - if (idx < sizeof(freqs)) - ivtv_call_i2c_clients(itv, VIDIOC_INT_AUDIO_CLOCK_FREQ, &freqs[idx]); - return err; } - return -EINVAL; + return err; } + if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) + return cx2341x_ext_ctrls(&itv->params, 0, c, VIDIOC_G_EXT_CTRLS); + return -EINVAL; +} - case VIDIOC_G_EXT_CTRLS: - { - struct v4l2_ext_controls *c = arg; - - if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { - int i; - int err = 0; - - for (i = 0; i < c->count; i++) { - ctrl.id = c->controls[i].id; - ctrl.value = c->controls[i].value; - err = ivtv_g_ctrl(itv, &ctrl); - c->controls[i].value = ctrl.value; - if (err) { - c->error_idx = i; - break; - } +int ivtv_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + struct v4l2_control ctrl; + + if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { + int i; + int err = 0; + + for (i = 0; i < c->count; i++) { + ctrl.id = c->controls[i].id; + ctrl.value = c->controls[i].value; + err = ivtv_s_ctrl(file, fh, &ctrl); + c->controls[i].value = ctrl.value; + if (err) { + c->error_idx = i; + break; } - return err; } - IVTV_DEBUG_IOCTL("VIDIOC_G_EXT_CTRLS\n"); - if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) - return cx2341x_ext_ctrls(&itv->params, 0, arg, cmd); - return -EINVAL; + return err; } + if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) { + static u32 freqs[3] = { 44100, 48000, 32000 }; + struct cx2341x_mpeg_params p = itv->params; + int err = cx2341x_ext_ctrls(&p, atomic_read(&itv->capturing), c, VIDIOC_S_EXT_CTRLS); + unsigned idx; - case VIDIOC_TRY_EXT_CTRLS: - { - struct v4l2_ext_controls *c = arg; + if (err) + return err; - IVTV_DEBUG_IOCTL("VIDIOC_TRY_EXT_CTRLS\n"); - if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) - return cx2341x_ext_ctrls(&itv->params, atomic_read(&itv->capturing), arg, cmd); - return -EINVAL; - } + if (p.video_encoding != itv->params.video_encoding) { + int is_mpeg1 = p.video_encoding == + V4L2_MPEG_VIDEO_ENCODING_MPEG_1; + struct v4l2_format fmt; - default: - return -EINVAL; + /* fix videodecoder resolution */ + fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + fmt.fmt.pix.width = itv->params.width / (is_mpeg1 ? 2 : 1); + fmt.fmt.pix.height = itv->params.height; + itv->video_dec_func(itv, VIDIOC_S_FMT, &fmt); + } + err = cx2341x_update(itv, ivtv_api_func, &itv->params, &p); + if (!err && itv->params.stream_vbi_fmt != p.stream_vbi_fmt) + err = ivtv_setup_vbi_fmt(itv, p.stream_vbi_fmt); + itv->params = p; + itv->dualwatch_stereo_mode = p.audio_properties & 0x0300; + idx = p.audio_properties & 0x03; + /* The audio clock of the digitizer must match the codec sample + rate otherwise you get some very strange effects. */ + if (idx < sizeof(freqs)) + ivtv_call_i2c_clients(itv, VIDIOC_INT_AUDIO_CLOCK_FREQ, &freqs[idx]); + return err; } - return 0; + return -EINVAL; +} + +int ivtv_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + + if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) + return cx2341x_ext_ctrls(&itv->params, atomic_read(&itv->capturing), c, VIDIOC_TRY_EXT_CTRLS); + return -EINVAL; } diff --git a/drivers/media/video/ivtv/ivtv-controls.h b/drivers/media/video/ivtv/ivtv-controls.h index bb8a6a5ed2bc..304204be6b0d 100644 --- a/drivers/media/video/ivtv/ivtv-controls.h +++ b/drivers/media/video/ivtv/ivtv-controls.h @@ -21,6 +21,12 @@ #ifndef IVTV_CONTROLS_H #define IVTV_CONTROLS_H -int ivtv_control_ioctls(struct ivtv *itv, unsigned int cmd, void *arg); +int ivtv_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *a); +int ivtv_g_ctrl(struct file *file, void *fh, struct v4l2_control *a); +int ivtv_s_ctrl(struct file *file, void *fh, struct v4l2_control *a); +int ivtv_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *a); +int ivtv_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *a); +int ivtv_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *a); +int ivtv_querymenu(struct file *file, void *fh, struct v4l2_querymenu *a); #endif diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c index 797e636771da..9e6a64903875 100644 --- a/drivers/media/video/ivtv/ivtv-driver.c +++ b/drivers/media/video/ivtv/ivtv-driver.c @@ -191,6 +191,7 @@ MODULE_PARM_DESC(cardtype, "\t\t\t23 = AverMedia PVR-150 Plus\n" "\t\t\t24 = AverMedia EZMaker PCI Deluxe\n" "\t\t\t25 = AverMedia M104 (not yet working)\n" + "\t\t\t26 = Buffalo PC-MV5L/PCI\n" "\t\t\t 0 = Autodetect (default)\n" "\t\t\t-1 = Ignore this card\n\t\t"); MODULE_PARM_DESC(pal, "Set PAL standard: BGH, DK, I, M, N, Nc, 60"); @@ -1019,7 +1020,7 @@ static int __devinit ivtv_probe(struct pci_dev *dev, ivtv_cards[ivtv_cards_active] = itv; itv->dev = dev; itv->num = ivtv_cards_active++; - snprintf(itv->name, sizeof(itv->name) - 1, "ivtv%d", itv->num); + snprintf(itv->name, sizeof(itv->name), "ivtv%d", itv->num); IVTV_INFO("Initializing card #%d\n", itv->num); spin_unlock(&ivtv_cards_lock); @@ -1261,9 +1262,13 @@ err: int ivtv_init_on_first_open(struct ivtv *itv) { struct v4l2_frequency vf; + /* Needed to call ioctls later */ + struct ivtv_open_id fh; int fw_retry_count = 3; int video_input; + fh.itv = itv; + if (test_bit(IVTV_F_I_FAILED, &itv->i_flags)) return -ENXIO; @@ -1311,18 +1316,18 @@ int ivtv_init_on_first_open(struct ivtv *itv) video_input = itv->active_input; itv->active_input++; /* Force update of input */ - ivtv_v4l2_ioctls(itv, NULL, VIDIOC_S_INPUT, &video_input); + ivtv_s_input(NULL, &fh, video_input); /* Let the VIDIOC_S_STD ioctl do all the work, keeps the code in one place. */ itv->std++; /* Force full standard initialization */ itv->std_out = itv->std; - ivtv_v4l2_ioctls(itv, NULL, VIDIOC_S_FREQUENCY, &vf); + ivtv_s_frequency(NULL, &fh, &vf); if (itv->card->v4l2_capabilities & V4L2_CAP_VIDEO_OUTPUT) { ivtv_init_mpeg_decoder(itv); } - ivtv_v4l2_ioctls(itv, NULL, VIDIOC_S_STD, &itv->tuner_std); + ivtv_s_std(NULL, &fh, &itv->tuner_std); /* On a cx23416 this seems to be able to enable DMA to the chip? */ if (!itv->has_cx23415) diff --git a/drivers/media/video/ivtv/ivtv-fileops.c b/drivers/media/video/ivtv/ivtv-fileops.c index db813e071ce6..7ec5c99f9ad1 100644 --- a/drivers/media/video/ivtv/ivtv-fileops.c +++ b/drivers/media/video/ivtv/ivtv-fileops.c @@ -582,6 +582,19 @@ ssize_t ivtv_v4l2_write(struct file *filp, const char __user *user_buf, size_t c ivtv_queue_init(&q); set_bit(IVTV_F_S_APPL_IO, &s->s_flags); + /* Start decoder (returns 0 if already started) */ + mutex_lock(&itv->serialize_lock); + rc = ivtv_start_decoding(id, itv->speed); + mutex_unlock(&itv->serialize_lock); + if (rc) { + IVTV_DEBUG_WARN("Failed start decode stream %s\n", s->name); + + /* failure, clean up */ + clear_bit(IVTV_F_S_STREAMING, &s->s_flags); + clear_bit(IVTV_F_S_APPL_IO, &s->s_flags); + return rc; + } + retry: /* If possible, just DMA the entire frame - Check the data transfer size since we may get here before the stream has been fully set-up */ @@ -664,18 +677,6 @@ retry: ivtv_enqueue(s, buf, &s->q_full); } - /* Start decoder (returns 0 if already started) */ - mutex_lock(&itv->serialize_lock); - rc = ivtv_start_decoding(id, itv->speed); - mutex_unlock(&itv->serialize_lock); - if (rc) { - IVTV_DEBUG_WARN("Failed start decode stream %s\n", s->name); - - /* failure, clean up */ - clear_bit(IVTV_F_S_STREAMING, &s->s_flags); - clear_bit(IVTV_F_S_APPL_IO, &s->s_flags); - return rc; - } if (test_bit(IVTV_F_S_NEEDS_DATA, &s->s_flags)) { if (s->q_full.length >= itv->dma_data_req_size) { int got_sig; diff --git a/drivers/media/video/ivtv/ivtv-gpio.c b/drivers/media/video/ivtv/ivtv-gpio.c index d8ac09f3cce6..bc22905ea20f 100644 --- a/drivers/media/video/ivtv/ivtv-gpio.c +++ b/drivers/media/video/ivtv/ivtv-gpio.c @@ -146,15 +146,20 @@ int ivtv_reset_tuner_gpio(void *dev, int cmd, int value) void ivtv_gpio_init(struct ivtv *itv) { - if (itv->card->gpio_init.direction == 0) + u16 pin = 0; + + if (itv->card->xceive_pin) + pin = 1 << itv->card->xceive_pin; + + if ((itv->card->gpio_init.direction | pin) == 0) return; IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n", read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT)); /* init output data then direction */ - write_reg(itv->card->gpio_init.initial_value, IVTV_REG_GPIO_OUT); - write_reg(itv->card->gpio_init.direction, IVTV_REG_GPIO_DIR); + write_reg(itv->card->gpio_init.initial_value | pin, IVTV_REG_GPIO_OUT); + write_reg(itv->card->gpio_init.direction | pin, IVTV_REG_GPIO_DIR); } static struct v4l2_queryctrl gpio_ctrl_mute = { diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c index 26cc0f6699fd..8d602cb6ba68 100644 --- a/drivers/media/video/ivtv/ivtv-ioctl.c +++ b/drivers/media/video/ivtv/ivtv-ioctl.c @@ -128,37 +128,6 @@ u16 ivtv_get_service_set(struct v4l2_sliced_vbi_format *fmt) return set; } -static const struct { - v4l2_std_id std; - char *name; -} enum_stds[] = { - { V4L2_STD_PAL_BG | V4L2_STD_PAL_H, "PAL-BGH" }, - { V4L2_STD_PAL_DK, "PAL-DK" }, - { V4L2_STD_PAL_I, "PAL-I" }, - { V4L2_STD_PAL_M, "PAL-M" }, - { V4L2_STD_PAL_N, "PAL-N" }, - { V4L2_STD_PAL_Nc, "PAL-Nc" }, - { V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, "SECAM-BGH" }, - { V4L2_STD_SECAM_DK, "SECAM-DK" }, - { V4L2_STD_SECAM_L, "SECAM-L" }, - { V4L2_STD_SECAM_LC, "SECAM-L'" }, - { V4L2_STD_NTSC_M, "NTSC-M" }, - { V4L2_STD_NTSC_M_JP, "NTSC-J" }, - { V4L2_STD_NTSC_M_KR, "NTSC-K" }, -}; - -static const struct v4l2_standard ivtv_std_60hz = -{ - .frameperiod = {.numerator = 1001, .denominator = 30000}, - .framelines = 525, -}; - -static const struct v4l2_standard ivtv_std_50hz = -{ - .frameperiod = {.numerator = 1, .denominator = 25}, - .framelines = 625, -}; - void ivtv_set_osd_alpha(struct ivtv *itv) { ivtv_vapi(itv, CX2341X_OSD_SET_GLOBAL_ALPHA, 3, @@ -373,1045 +342,1190 @@ static int ivtv_itvc(struct ivtv *itv, unsigned int cmd, void *arg) return 0; } -static int ivtv_get_fmt(struct ivtv *itv, int streamtype, struct v4l2_format *fmt) +static int ivtv_g_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt) { - switch (fmt->type) { - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) - return -EINVAL; - fmt->fmt.pix.width = itv->main_rect.width; - fmt->fmt.pix.height = itv->main_rect.height; - fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; - fmt->fmt.pix.field = V4L2_FIELD_INTERLACED; - if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) { - switch (itv->yuv_info.lace_mode & IVTV_YUV_MODE_MASK) { - case IVTV_YUV_MODE_INTERLACED: - fmt->fmt.pix.field = (itv->yuv_info.lace_mode & IVTV_YUV_SYNC_MASK) ? - V4L2_FIELD_INTERLACED_BT : V4L2_FIELD_INTERLACED_TB; - break; - case IVTV_YUV_MODE_PROGRESSIVE: - fmt->fmt.pix.field = V4L2_FIELD_NONE; - break; - default: - fmt->fmt.pix.field = V4L2_FIELD_ANY; - break; - } - fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_HM12; - fmt->fmt.pix.bytesperline = 720; - fmt->fmt.pix.width = itv->yuv_info.v4l2_src_w; - fmt->fmt.pix.height = itv->yuv_info.v4l2_src_h; - /* YUV size is (Y=(h*w) + UV=(h*(w/2))) */ - fmt->fmt.pix.sizeimage = - 1080 * ((fmt->fmt.pix.height + 31) & ~31); - } else if (streamtype == IVTV_ENC_STREAM_TYPE_YUV) { - fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_HM12; - /* YUV size is (Y=(h*w) + UV=(h*(w/2))) */ - fmt->fmt.pix.sizeimage = - fmt->fmt.pix.height * fmt->fmt.pix.width + - fmt->fmt.pix.height * (fmt->fmt.pix.width / 2); - } else { - fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; - fmt->fmt.pix.sizeimage = 128 * 1024; - } - break; + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - fmt->fmt.pix.width = itv->params.width; - fmt->fmt.pix.height = itv->params.height; - fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; - fmt->fmt.pix.field = V4L2_FIELD_INTERLACED; - if (streamtype == IVTV_ENC_STREAM_TYPE_YUV || - streamtype == IVTV_DEC_STREAM_TYPE_YUV) { - fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_HM12; - /* YUV size is (Y=(h*w) + UV=(h*(w/2))) */ - fmt->fmt.pix.sizeimage = - fmt->fmt.pix.height * fmt->fmt.pix.width + - fmt->fmt.pix.height * (fmt->fmt.pix.width / 2); - } else { - fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG; - fmt->fmt.pix.sizeimage = 128 * 1024; - } - break; + vbifmt->reserved[0] = 0; + vbifmt->reserved[1] = 0; + if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT)) + return -EINVAL; + vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; + if (itv->is_60hz) { + vbifmt->service_lines[0][21] = V4L2_SLICED_CAPTION_525; + vbifmt->service_lines[1][21] = V4L2_SLICED_CAPTION_525; + } else { + vbifmt->service_lines[0][23] = V4L2_SLICED_WSS_625; + vbifmt->service_lines[0][16] = V4L2_SLICED_VPS; + } + vbifmt->service_set = ivtv_get_service_set(vbifmt); + return 0; +} - case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: - if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) - return -EINVAL; - fmt->fmt.win.chromakey = itv->osd_chroma_key; - fmt->fmt.win.global_alpha = itv->osd_global_alpha; - break; +static int ivtv_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; + struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; + + pixfmt->width = itv->params.width; + pixfmt->height = itv->params.height; + pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; + pixfmt->field = V4L2_FIELD_INTERLACED; + pixfmt->priv = 0; + if (id->type == IVTV_ENC_STREAM_TYPE_YUV) { + pixfmt->pixelformat = V4L2_PIX_FMT_HM12; + /* YUV size is (Y=(h*w) + UV=(h*(w/2))) */ + pixfmt->sizeimage = + pixfmt->height * pixfmt->width + + pixfmt->height * (pixfmt->width / 2); + pixfmt->bytesperline = 720; + } else { + pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; + pixfmt->sizeimage = 128 * 1024; + pixfmt->bytesperline = 0; + } + return 0; +} - case V4L2_BUF_TYPE_VBI_CAPTURE: - fmt->fmt.vbi.sampling_rate = 27000000; - fmt->fmt.vbi.offset = 248; - fmt->fmt.vbi.samples_per_line = itv->vbi.raw_decoder_line_size - 4; - fmt->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; - fmt->fmt.vbi.start[0] = itv->vbi.start[0]; - fmt->fmt.vbi.start[1] = itv->vbi.start[1]; - fmt->fmt.vbi.count[0] = fmt->fmt.vbi.count[1] = itv->vbi.count; - break; +static int ivtv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi; + + vbifmt->sampling_rate = 27000000; + vbifmt->offset = 248; + vbifmt->samples_per_line = itv->vbi.raw_decoder_line_size - 4; + vbifmt->sample_format = V4L2_PIX_FMT_GREY; + vbifmt->start[0] = itv->vbi.start[0]; + vbifmt->start[1] = itv->vbi.start[1]; + vbifmt->count[0] = vbifmt->count[1] = itv->vbi.count; + vbifmt->flags = 0; + vbifmt->reserved[0] = 0; + vbifmt->reserved[1] = 0; + return 0; +} - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - { - struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; +static int ivtv_g_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; - if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT)) - return -EINVAL; - vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; - memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved)); - memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines)); - if (itv->is_60hz) { - vbifmt->service_lines[0][21] = V4L2_SLICED_CAPTION_525; - vbifmt->service_lines[1][21] = V4L2_SLICED_CAPTION_525; - } else { - vbifmt->service_lines[0][23] = V4L2_SLICED_WSS_625; - vbifmt->service_lines[0][16] = V4L2_SLICED_VPS; - } - vbifmt->service_set = ivtv_get_service_set(vbifmt); - break; + vbifmt->reserved[0] = 0; + vbifmt->reserved[1] = 0; + vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; + + if (id->type == IVTV_DEC_STREAM_TYPE_VBI) { + vbifmt->service_set = itv->is_50hz ? V4L2_SLICED_VBI_625 : + V4L2_SLICED_VBI_525; + ivtv_expand_service_set(vbifmt, itv->is_50hz); + return 0; } - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - { - struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; + itv->video_dec_func(itv, VIDIOC_G_FMT, fmt); + vbifmt->service_set = ivtv_get_service_set(vbifmt); + return 0; +} - vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; - memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved)); - memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines)); +static int ivtv_g_fmt_vid_out(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; + struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; - if (streamtype == IVTV_DEC_STREAM_TYPE_VBI) { - vbifmt->service_set = itv->is_50hz ? V4L2_SLICED_VBI_625 : - V4L2_SLICED_VBI_525; - ivtv_expand_service_set(vbifmt, itv->is_50hz); + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) + return -EINVAL; + pixfmt->width = itv->main_rect.width; + pixfmt->height = itv->main_rect.height; + pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M; + pixfmt->field = V4L2_FIELD_INTERLACED; + pixfmt->priv = 0; + if (id->type == IVTV_DEC_STREAM_TYPE_YUV) { + switch (itv->yuv_info.lace_mode & IVTV_YUV_MODE_MASK) { + case IVTV_YUV_MODE_INTERLACED: + pixfmt->field = (itv->yuv_info.lace_mode & IVTV_YUV_SYNC_MASK) ? + V4L2_FIELD_INTERLACED_BT : V4L2_FIELD_INTERLACED_TB; + break; + case IVTV_YUV_MODE_PROGRESSIVE: + pixfmt->field = V4L2_FIELD_NONE; + break; + default: + pixfmt->field = V4L2_FIELD_ANY; break; } - - itv->video_dec_func(itv, VIDIOC_G_FMT, fmt); - vbifmt->service_set = ivtv_get_service_set(vbifmt); - break; - } - case V4L2_BUF_TYPE_VBI_OUTPUT: - case V4L2_BUF_TYPE_VIDEO_OVERLAY: - default: - return -EINVAL; + pixfmt->pixelformat = V4L2_PIX_FMT_HM12; + pixfmt->bytesperline = 720; + pixfmt->width = itv->yuv_info.v4l2_src_w; + pixfmt->height = itv->yuv_info.v4l2_src_h; + /* YUV size is (Y=(h*w) + UV=(h*(w/2))) */ + pixfmt->sizeimage = + 1080 * ((pixfmt->height + 31) & ~31); + } else { + pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; + pixfmt->sizeimage = 128 * 1024; + pixfmt->bytesperline = 0; } return 0; } -static int ivtv_try_or_set_fmt(struct ivtv *itv, int streamtype, - struct v4l2_format *fmt, int set_fmt) +static int ivtv_g_fmt_vid_out_overlay(struct file *file, void *fh, struct v4l2_format *fmt) { - struct yuv_playback_info *yi = &itv->yuv_info; - struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; - u16 set; + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + struct v4l2_window *winfmt = &fmt->fmt.win; - if (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { - struct v4l2_rect r; - int field; + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) + return -EINVAL; + winfmt->chromakey = itv->osd_chroma_key; + winfmt->global_alpha = itv->osd_global_alpha; + winfmt->field = V4L2_FIELD_INTERLACED; + winfmt->clips = NULL; + winfmt->clipcount = 0; + winfmt->bitmap = NULL; + winfmt->w.top = winfmt->w.left = 0; + winfmt->w.width = itv->osd_rect.width; + winfmt->w.height = itv->osd_rect.height; + return 0; +} - if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) - return -EINVAL; - field = fmt->fmt.pix.field; - r.top = 0; - r.left = 0; - r.width = fmt->fmt.pix.width; - r.height = fmt->fmt.pix.height; - ivtv_get_fmt(itv, streamtype, fmt); - fmt->fmt.pix.width = r.width; - fmt->fmt.pix.height = r.height; - if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) { - fmt->fmt.pix.field = field; - if (fmt->fmt.pix.width < 2) - fmt->fmt.pix.width = 2; - if (fmt->fmt.pix.width > 720) - fmt->fmt.pix.width = 720; - if (fmt->fmt.pix.height < 2) - fmt->fmt.pix.height = 2; - if (fmt->fmt.pix.height > 576) - fmt->fmt.pix.height = 576; - } - if (set_fmt && streamtype == IVTV_DEC_STREAM_TYPE_YUV) { - /* Return now if we already have some frame data */ - if (yi->stream_size) - return -EBUSY; +static int ivtv_try_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt) +{ + return ivtv_g_fmt_sliced_vbi_out(file, fh, fmt); +} - yi->v4l2_src_w = r.width; - yi->v4l2_src_h = r.height; +static int ivtv_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; + int w = fmt->fmt.pix.width; + int h = fmt->fmt.pix.height; + + w = min(w, 720); + w = max(w, 1); + h = min(h, itv->is_50hz ? 576 : 480); + h = max(h, 2); + ivtv_g_fmt_vid_cap(file, fh, fmt); + fmt->fmt.pix.width = w; + fmt->fmt.pix.height = h; + return 0; +} - switch (field) { - case V4L2_FIELD_NONE: - yi->lace_mode = IVTV_YUV_MODE_PROGRESSIVE; - break; - case V4L2_FIELD_ANY: - yi->lace_mode = IVTV_YUV_MODE_AUTO; - break; - case V4L2_FIELD_INTERLACED_BT: - yi->lace_mode = - IVTV_YUV_MODE_INTERLACED|IVTV_YUV_SYNC_ODD; - break; - case V4L2_FIELD_INTERLACED_TB: - default: - yi->lace_mode = IVTV_YUV_MODE_INTERLACED; - break; - } - yi->lace_sync_field = (yi->lace_mode & IVTV_YUV_SYNC_MASK) == IVTV_YUV_SYNC_EVEN ? 0 : 1; +static int ivtv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + return ivtv_g_fmt_vbi_cap(file, fh, fmt); +} - if (test_bit(IVTV_F_I_DEC_YUV, &itv->i_flags)) - itv->dma_data_req_size = - 1080 * ((yi->v4l2_src_h + 31) & ~31); +static int ivtv_try_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; - /* Force update of yuv registers */ - yi->yuv_forced_update = 1; - return 0; - } - return 0; - } + if (id->type == IVTV_DEC_STREAM_TYPE_VBI) + return ivtv_g_fmt_sliced_vbi_cap(file, fh, fmt); - if (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY) { - if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) - return -EINVAL; - if (set_fmt) { - itv->osd_chroma_key = fmt->fmt.win.chromakey; - itv->osd_global_alpha = fmt->fmt.win.global_alpha; - ivtv_set_osd_alpha(itv); - } - return 0; - } + /* set sliced VBI capture format */ + vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; + vbifmt->reserved[0] = 0; + vbifmt->reserved[1] = 0; - /* set window size */ - if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { - struct cx2341x_mpeg_params *p = &itv->params; - int w = fmt->fmt.pix.width; - int h = fmt->fmt.pix.height; - - if (w > 720) w = 720; - else if (w < 1) w = 1; - if (h > (itv->is_50hz ? 576 : 480)) h = (itv->is_50hz ? 576 : 480); - else if (h < 2) h = 2; - ivtv_get_fmt(itv, streamtype, fmt); - fmt->fmt.pix.width = w; - fmt->fmt.pix.height = h; - - if (!set_fmt || (p->width == w && p->height == h)) - return 0; - if (atomic_read(&itv->capturing) > 0) - return -EBUSY; + if (vbifmt->service_set) + ivtv_expand_service_set(vbifmt, itv->is_50hz); + check_service_set(vbifmt, itv->is_50hz); + vbifmt->service_set = ivtv_get_service_set(vbifmt); + return 0; +} - p->width = w; - p->height = h; - if (w != 720 || h != (itv->is_50hz ? 576 : 480)) - p->video_temporal_filter = 0; - else - p->video_temporal_filter = 8; - if (p->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1) - fmt->fmt.pix.width /= 2; - itv->video_dec_func(itv, VIDIOC_S_FMT, fmt); - return ivtv_get_fmt(itv, streamtype, fmt); - } +static int ivtv_try_fmt_vid_out(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct ivtv_open_id *id = fh; + s32 w, h; + int field; + int ret; - /* set raw VBI format */ - if (fmt->type == V4L2_BUF_TYPE_VBI_CAPTURE) { - if (set_fmt && atomic_read(&itv->capturing) > 0) { - return -EBUSY; - } - if (set_fmt) { - itv->vbi.sliced_in->service_set = 0; - itv->video_dec_func(itv, VIDIOC_S_FMT, &itv->vbi.in); - } - return ivtv_get_fmt(itv, streamtype, fmt); - } + w = fmt->fmt.pix.width; + h = fmt->fmt.pix.height; + field = fmt->fmt.pix.field; + ret = ivtv_g_fmt_vid_out(file, fh, fmt); + fmt->fmt.pix.width = w; + fmt->fmt.pix.height = h; + if (!ret && id->type == IVTV_DEC_STREAM_TYPE_YUV) { + fmt->fmt.pix.field = field; + if (fmt->fmt.pix.width < 2) + fmt->fmt.pix.width = 2; + if (fmt->fmt.pix.width > 720) + fmt->fmt.pix.width = 720; + if (fmt->fmt.pix.height < 2) + fmt->fmt.pix.height = 2; + if (fmt->fmt.pix.height > 576) + fmt->fmt.pix.height = 576; + } + return ret; +} - /* set sliced VBI output - In principle the user could request that only certain - VBI types are output and that the others are ignored. - I.e., suppress CC in the even fields or only output - WSS and no VPS. Currently though there is no choice. */ - if (fmt->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) - return ivtv_get_fmt(itv, streamtype, fmt); +static int ivtv_try_fmt_vid_out_overlay(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + u32 chromakey = fmt->fmt.win.chromakey; + u8 global_alpha = fmt->fmt.win.global_alpha; - /* any else but sliced VBI capture is an error */ - if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) return -EINVAL; + ivtv_g_fmt_vid_out_overlay(file, fh, fmt); + fmt->fmt.win.chromakey = chromakey; + fmt->fmt.win.global_alpha = global_alpha; + return 0; +} - if (streamtype == IVTV_DEC_STREAM_TYPE_VBI) - return ivtv_get_fmt(itv, streamtype, fmt); +static int ivtv_s_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt) +{ + return ivtv_g_fmt_sliced_vbi_out(file, fh, fmt); +} - /* set sliced VBI capture format */ - vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36; - memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved)); +static int ivtv_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; + struct cx2341x_mpeg_params *p = &itv->params; + int w = fmt->fmt.pix.width; + int h = fmt->fmt.pix.height; + int ret = ivtv_try_fmt_vid_cap(file, fh, fmt); - if (vbifmt->service_set) - ivtv_expand_service_set(vbifmt, itv->is_50hz); - set = check_service_set(vbifmt, itv->is_50hz); - vbifmt->service_set = ivtv_get_service_set(vbifmt); + if (ret) + return ret; - if (!set_fmt) + if (p->width == w && p->height == h) return 0; - if (set == 0) + + if (atomic_read(&itv->capturing) > 0) + return -EBUSY; + + p->width = w; + p->height = h; + if (p->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1) + fmt->fmt.pix.width /= 2; + itv->video_dec_func(itv, VIDIOC_S_FMT, fmt); + return ivtv_g_fmt_vid_cap(file, fh, fmt); +} + +static int ivtv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + + itv->vbi.sliced_in->service_set = 0; + itv->video_dec_func(itv, VIDIOC_S_FMT, &itv->vbi.in); + return ivtv_g_fmt_vbi_cap(file, fh, fmt); +} + +static int ivtv_s_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced; + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; + int ret = ivtv_try_fmt_sliced_vbi_cap(file, fh, fmt); + + if (ret || id->type == IVTV_DEC_STREAM_TYPE_VBI) + return ret; + + if (check_service_set(vbifmt, itv->is_50hz) == 0) return -EINVAL; - if (atomic_read(&itv->capturing) > 0) { + if (atomic_read(&itv->capturing) > 0) return -EBUSY; - } itv->video_dec_func(itv, VIDIOC_S_FMT, fmt); memcpy(itv->vbi.sliced_in, vbifmt, sizeof(*itv->vbi.sliced_in)); return 0; } -static int ivtv_debug_ioctls(struct file *filp, unsigned int cmd, void *arg) +static int ivtv_s_fmt_vid_out(struct file *file, void *fh, struct v4l2_format *fmt) { - struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data; + struct ivtv_open_id *id = fh; struct ivtv *itv = id->itv; - struct v4l2_register *reg = arg; + struct yuv_playback_info *yi = &itv->yuv_info; + int ret = ivtv_try_fmt_vid_out(file, fh, fmt); - switch (cmd) { - /* ioctls to allow direct access to the encoder registers for testing */ - case VIDIOC_DBG_G_REGISTER: - if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) - return ivtv_itvc(itv, cmd, arg); - if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) - return ivtv_i2c_id(itv, reg->match_chip, cmd, arg); - return ivtv_call_i2c_client(itv, reg->match_chip, cmd, arg); - - case VIDIOC_DBG_S_REGISTER: - if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) - return ivtv_itvc(itv, cmd, arg); - if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) - return ivtv_i2c_id(itv, reg->match_chip, cmd, arg); - return ivtv_call_i2c_client(itv, reg->match_chip, cmd, arg); - - case VIDIOC_G_CHIP_IDENT: { - struct v4l2_chip_ident *chip = arg; - - chip->ident = V4L2_IDENT_NONE; - chip->revision = 0; - if (reg->match_type == V4L2_CHIP_MATCH_HOST) { - if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) - chip->ident = itv->has_cx23415 ? V4L2_IDENT_CX23415 : V4L2_IDENT_CX23416; - return 0; - } - if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) - return ivtv_i2c_id(itv, reg->match_chip, cmd, arg); - if (reg->match_type == V4L2_CHIP_MATCH_I2C_ADDR) - return ivtv_call_i2c_client(itv, reg->match_chip, cmd, arg); - return -EINVAL; - } + if (ret) + return ret; - case VIDIOC_INT_S_AUDIO_ROUTING: { - struct v4l2_routing *route = arg; + if (id->type != IVTV_DEC_STREAM_TYPE_YUV) + return 0; - ivtv_i2c_hw(itv, itv->card->hw_audio, VIDIOC_INT_S_AUDIO_ROUTING, route); - break; - } + /* Return now if we already have some frame data */ + if (yi->stream_size) + return -EBUSY; - case VIDIOC_INT_RESET: { - u32 val = *(u32 *)arg; + yi->v4l2_src_w = fmt->fmt.pix.width; + yi->v4l2_src_h = fmt->fmt.pix.height; - if ((val == 0 && itv->options.newi2c) || (val & 0x01)) { - ivtv_reset_ir_gpio(itv); - } - if (val & 0x02) { - itv->video_dec_func(itv, cmd, NULL); - } + switch (fmt->fmt.pix.field) { + case V4L2_FIELD_NONE: + yi->lace_mode = IVTV_YUV_MODE_PROGRESSIVE; break; - } - + case V4L2_FIELD_ANY: + yi->lace_mode = IVTV_YUV_MODE_AUTO; + break; + case V4L2_FIELD_INTERLACED_BT: + yi->lace_mode = + IVTV_YUV_MODE_INTERLACED|IVTV_YUV_SYNC_ODD; + break; + case V4L2_FIELD_INTERLACED_TB: default: - return -EINVAL; + yi->lace_mode = IVTV_YUV_MODE_INTERLACED; + break; } + yi->lace_sync_field = (yi->lace_mode & IVTV_YUV_SYNC_MASK) == IVTV_YUV_SYNC_EVEN ? 0 : 1; + + if (test_bit(IVTV_F_I_DEC_YUV, &itv->i_flags)) + itv->dma_data_req_size = + 1080 * ((yi->v4l2_src_h + 31) & ~31); + + /* Force update of yuv registers */ + yi->yuv_forced_update = 1; return 0; } -int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void *arg) +static int ivtv_s_fmt_vid_out_overlay(struct file *file, void *fh, struct v4l2_format *fmt) { - struct ivtv_open_id *id = NULL; - struct yuv_playback_info *yi = &itv->yuv_info; - u32 data[CX2341X_MBOX_MAX_DATA]; - int streamtype = 0; + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + int ret = ivtv_try_fmt_vid_out_overlay(file, fh, fmt); - if (filp) { - id = (struct ivtv_open_id *)filp->private_data; - streamtype = id->type; + if (ret == 0) { + itv->osd_chroma_key = fmt->fmt.win.chromakey; + itv->osd_global_alpha = fmt->fmt.win.global_alpha; + ivtv_set_osd_alpha(itv); } + return ret; +} - switch (cmd) { - case VIDIOC_G_PRIORITY: - { - enum v4l2_priority *p = arg; +static int ivtv_g_chip_ident(struct file *file, void *fh, struct v4l2_chip_ident *chip) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - *p = v4l2_prio_max(&itv->prio); - break; + chip->ident = V4L2_IDENT_NONE; + chip->revision = 0; + if (chip->match_type == V4L2_CHIP_MATCH_HOST) { + if (v4l2_chip_match_host(chip->match_type, chip->match_chip)) + chip->ident = itv->has_cx23415 ? V4L2_IDENT_CX23415 : V4L2_IDENT_CX23416; + return 0; } + if (chip->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) + return ivtv_i2c_id(itv, chip->match_chip, VIDIOC_G_CHIP_IDENT, chip); + if (chip->match_type == V4L2_CHIP_MATCH_I2C_ADDR) + return ivtv_call_i2c_client(itv, chip->match_chip, VIDIOC_G_CHIP_IDENT, chip); + return -EINVAL; +} - case VIDIOC_S_PRIORITY: - { - enum v4l2_priority *prio = arg; +static int ivtv_g_register(struct file *file, void *fh, struct v4l2_register *reg) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - return v4l2_prio_change(&itv->prio, &id->prio, *prio); - } + if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return ivtv_itvc(itv, VIDIOC_DBG_G_REGISTER, reg); + if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) + return ivtv_i2c_id(itv, reg->match_chip, VIDIOC_DBG_G_REGISTER, reg); + return ivtv_call_i2c_client(itv, reg->match_chip, VIDIOC_DBG_G_REGISTER, reg); +} - case VIDIOC_QUERYCAP:{ - struct v4l2_capability *vcap = arg; +static int ivtv_s_register(struct file *file, void *fh, struct v4l2_register *reg) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - memset(vcap, 0, sizeof(*vcap)); - strlcpy(vcap->driver, IVTV_DRIVER_NAME, sizeof(vcap->driver)); - strlcpy(vcap->card, itv->card_name, sizeof(vcap->card)); - strlcpy(vcap->bus_info, pci_name(itv->dev), sizeof(vcap->bus_info)); - vcap->version = IVTV_DRIVER_VERSION; /* version */ - vcap->capabilities = itv->v4l2_cap; /* capabilities */ + if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return ivtv_itvc(itv, VIDIOC_DBG_S_REGISTER, reg); + if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER) + return ivtv_i2c_id(itv, reg->match_chip, VIDIOC_DBG_S_REGISTER, reg); + return ivtv_call_i2c_client(itv, reg->match_chip, VIDIOC_DBG_S_REGISTER, reg); +} - /* reserved.. must set to 0! */ - vcap->reserved[0] = vcap->reserved[1] = - vcap->reserved[2] = vcap->reserved[3] = 0; - break; - } +static int ivtv_g_priority(struct file *file, void *fh, enum v4l2_priority *p) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - case VIDIOC_ENUMAUDIO:{ - struct v4l2_audio *vin = arg; + *p = v4l2_prio_max(&itv->prio); - return ivtv_get_audio_input(itv, vin->index, vin); - } + return 0; +} - case VIDIOC_G_AUDIO:{ - struct v4l2_audio *vin = arg; +static int ivtv_s_priority(struct file *file, void *fh, enum v4l2_priority prio) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; - vin->index = itv->audio_input; - return ivtv_get_audio_input(itv, vin->index, vin); - } + return v4l2_prio_change(&itv->prio, &id->prio, prio); +} - case VIDIOC_S_AUDIO:{ - struct v4l2_audio *vout = arg; +static int ivtv_querycap(struct file *file, void *fh, struct v4l2_capability *vcap) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - if (vout->index >= itv->nof_audio_inputs) - return -EINVAL; - itv->audio_input = vout->index; - ivtv_audio_set_io(itv); - break; - } + strlcpy(vcap->driver, IVTV_DRIVER_NAME, sizeof(vcap->driver)); + strlcpy(vcap->card, itv->card_name, sizeof(vcap->card)); + strlcpy(vcap->bus_info, pci_name(itv->dev), sizeof(vcap->bus_info)); + vcap->version = IVTV_DRIVER_VERSION; /* version */ + vcap->capabilities = itv->v4l2_cap; /* capabilities */ + return 0; +} - case VIDIOC_ENUMAUDOUT:{ - struct v4l2_audioout *vin = arg; +static int ivtv_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - /* set it to defaults from our table */ - return ivtv_get_audio_output(itv, vin->index, vin); - } + return ivtv_get_audio_input(itv, vin->index, vin); +} - case VIDIOC_G_AUDOUT:{ - struct v4l2_audioout *vin = arg; +static int ivtv_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - vin->index = 0; - return ivtv_get_audio_output(itv, vin->index, vin); - } + vin->index = itv->audio_input; + return ivtv_get_audio_input(itv, vin->index, vin); +} - case VIDIOC_S_AUDOUT:{ - struct v4l2_audioout *vout = arg; +static int ivtv_s_audio(struct file *file, void *fh, struct v4l2_audio *vout) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - return ivtv_get_audio_output(itv, vout->index, vout); - } + if (vout->index >= itv->nof_audio_inputs) + return -EINVAL; - case VIDIOC_ENUMINPUT:{ - struct v4l2_input *vin = arg; + itv->audio_input = vout->index; + ivtv_audio_set_io(itv); - /* set it to defaults from our table */ - return ivtv_get_input(itv, vin->index, vin); - } + return 0; +} - case VIDIOC_ENUMOUTPUT:{ - struct v4l2_output *vout = arg; +static int ivtv_enumaudout(struct file *file, void *fh, struct v4l2_audioout *vin) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - return ivtv_get_output(itv, vout->index, vout); - } + /* set it to defaults from our table */ + return ivtv_get_audio_output(itv, vin->index, vin); +} - case VIDIOC_TRY_FMT: - case VIDIOC_S_FMT: { - struct v4l2_format *fmt = arg; +static int ivtv_g_audout(struct file *file, void *fh, struct v4l2_audioout *vin) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - return ivtv_try_or_set_fmt(itv, id->type, fmt, cmd == VIDIOC_S_FMT); - } + vin->index = 0; + return ivtv_get_audio_output(itv, vin->index, vin); +} - case VIDIOC_G_FMT: { - struct v4l2_format *fmt = arg; - int type = fmt->type; +static int ivtv_s_audout(struct file *file, void *fh, struct v4l2_audioout *vout) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - memset(fmt, 0, sizeof(*fmt)); - fmt->type = type; - return ivtv_get_fmt(itv, id->type, fmt); - } + return ivtv_get_audio_output(itv, vout->index, vout); +} - case VIDIOC_CROPCAP: { - struct v4l2_cropcap *cropcap = arg; +static int ivtv_enum_input(struct file *file, void *fh, struct v4l2_input *vin) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) - return -EINVAL; - cropcap->bounds.top = cropcap->bounds.left = 0; - cropcap->bounds.width = 720; - if (cropcap->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { - cropcap->bounds.height = itv->is_50hz ? 576 : 480; - cropcap->pixelaspect.numerator = itv->is_50hz ? 59 : 10; - cropcap->pixelaspect.denominator = itv->is_50hz ? 54 : 11; - } else if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) { - if (yi->track_osd) { - cropcap->bounds.width = yi->osd_full_w; - cropcap->bounds.height = yi->osd_full_h; - } else { - cropcap->bounds.width = 720; - cropcap->bounds.height = - itv->is_out_50hz ? 576 : 480; - } - cropcap->pixelaspect.numerator = itv->is_out_50hz ? 59 : 10; - cropcap->pixelaspect.denominator = itv->is_out_50hz ? 54 : 11; + /* set it to defaults from our table */ + return ivtv_get_input(itv, vin->index, vin); +} + +static int ivtv_enum_output(struct file *file, void *fh, struct v4l2_output *vout) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + + return ivtv_get_output(itv, vout->index, vout); +} + +static int ivtv_cropcap(struct file *file, void *fh, struct v4l2_cropcap *cropcap) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; + struct yuv_playback_info *yi = &itv->yuv_info; + int streamtype; + + streamtype = id->type; + + if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + cropcap->bounds.top = cropcap->bounds.left = 0; + cropcap->bounds.width = 720; + if (cropcap->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { + cropcap->bounds.height = itv->is_50hz ? 576 : 480; + cropcap->pixelaspect.numerator = itv->is_50hz ? 59 : 10; + cropcap->pixelaspect.denominator = itv->is_50hz ? 54 : 11; + } else if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) { + if (yi->track_osd) { + cropcap->bounds.width = yi->osd_full_w; + cropcap->bounds.height = yi->osd_full_h; } else { - cropcap->bounds.height = itv->is_out_50hz ? 576 : 480; - cropcap->pixelaspect.numerator = itv->is_out_50hz ? 59 : 10; - cropcap->pixelaspect.denominator = itv->is_out_50hz ? 54 : 11; + cropcap->bounds.width = 720; + cropcap->bounds.height = + itv->is_out_50hz ? 576 : 480; } - cropcap->defrect = cropcap->bounds; - return 0; + cropcap->pixelaspect.numerator = itv->is_out_50hz ? 59 : 10; + cropcap->pixelaspect.denominator = itv->is_out_50hz ? 54 : 11; + } else { + cropcap->bounds.height = itv->is_out_50hz ? 576 : 480; + cropcap->pixelaspect.numerator = itv->is_out_50hz ? 59 : 10; + cropcap->pixelaspect.denominator = itv->is_out_50hz ? 54 : 11; } + cropcap->defrect = cropcap->bounds; + return 0; +} + +static int ivtv_s_crop(struct file *file, void *fh, struct v4l2_crop *crop) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; + struct yuv_playback_info *yi = &itv->yuv_info; + int streamtype; - case VIDIOC_S_CROP: { - struct v4l2_crop *crop = arg; + streamtype = id->type; - if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && - (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) { - if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) { - yi->main_rect = crop->c; + if (ivtv_debug & IVTV_DBGFLG_IOCTL) { + printk(KERN_INFO "ivtv%d ioctl: ", itv->num); + /* Should be replaced */ + /* v4l_printk_ioctl(VIDIOC_S_CROP); */ + } + + if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && + (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) { + if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) { + yi->main_rect = crop->c; + return 0; + } else { + if (!ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4, + crop->c.width, crop->c.height, crop->c.left, crop->c.top)) { + itv->main_rect = crop->c; return 0; - } else { - if (!ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4, - crop->c.width, crop->c.height, crop->c.left, crop->c.top)) { - itv->main_rect = crop->c; - return 0; - } } - return -EINVAL; } return -EINVAL; } + return -EINVAL; +} - case VIDIOC_G_CROP: { - struct v4l2_crop *crop = arg; +static int ivtv_g_crop(struct file *file, void *fh, struct v4l2_crop *crop) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; + struct yuv_playback_info *yi = &itv->yuv_info; + int streamtype; - if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && - (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) { - if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) - crop->c = yi->main_rect; - else - crop->c = itv->main_rect; - return 0; + streamtype = id->type; + + if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && + (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) { + if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) + crop->c = yi->main_rect; + else + crop->c = itv->main_rect; + return 0; + } + return -EINVAL; +} + +static int ivtv_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt) +{ + static struct v4l2_fmtdesc formats[] = { + { 0, 0, 0, + "HM12 (YUV 4:2:0)", V4L2_PIX_FMT_HM12, + { 0, 0, 0, 0 } + }, + { 1, 0, V4L2_FMT_FLAG_COMPRESSED, + "MPEG", V4L2_PIX_FMT_MPEG, + { 0, 0, 0, 0 } } + }; + enum v4l2_buf_type type = fmt->type; + + if (fmt->index > 1) return -EINVAL; - } - case VIDIOC_ENUM_FMT: { - static struct v4l2_fmtdesc formats[] = { - { 0, 0, 0, - "HM12 (YUV 4:2:0)", V4L2_PIX_FMT_HM12, - { 0, 0, 0, 0 } - }, - { 1, 0, V4L2_FMT_FLAG_COMPRESSED, - "MPEG", V4L2_PIX_FMT_MPEG, - { 0, 0, 0, 0 } - } - }; - struct v4l2_fmtdesc *fmt = arg; - enum v4l2_buf_type type = fmt->type; + *fmt = formats[fmt->index]; + fmt->type = type; + return 0; +} - switch (type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) - return -EINVAL; - break; - default: - return -EINVAL; +static int ivtv_enum_fmt_vid_out(struct file *file, void *fh, struct v4l2_fmtdesc *fmt) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + + static struct v4l2_fmtdesc formats[] = { + { 0, 0, 0, + "HM12 (YUV 4:2:0)", V4L2_PIX_FMT_HM12, + { 0, 0, 0, 0 } + }, + { 1, 0, V4L2_FMT_FLAG_COMPRESSED, + "MPEG", V4L2_PIX_FMT_MPEG, + { 0, 0, 0, 0 } } - if (fmt->index > 1) - return -EINVAL; - *fmt = formats[fmt->index]; - fmt->type = type; + }; + enum v4l2_buf_type type = fmt->type; + + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) + return -EINVAL; + + if (fmt->index > 1) + return -EINVAL; + + *fmt = formats[fmt->index]; + fmt->type = type; + + return 0; +} + +static int ivtv_g_input(struct file *file, void *fh, unsigned int *i) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + + *i = itv->active_input; + + return 0; +} + +int ivtv_s_input(struct file *file, void *fh, unsigned int inp) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + + if (inp < 0 || inp >= itv->nof_inputs) + return -EINVAL; + + if (inp == itv->active_input) { + IVTV_DEBUG_INFO("Input unchanged\n"); return 0; } - case VIDIOC_G_INPUT:{ - *(int *)arg = itv->active_input; - break; + if (atomic_read(&itv->capturing) > 0) { + return -EBUSY; } - case VIDIOC_S_INPUT:{ - int inp = *(int *)arg; + IVTV_DEBUG_INFO("Changing input from %d to %d\n", + itv->active_input, inp); - if (inp < 0 || inp >= itv->nof_inputs) - return -EINVAL; + itv->active_input = inp; + /* Set the audio input to whatever is appropriate for the + input type. */ + itv->audio_input = itv->card->video_inputs[inp].audio_index; - if (inp == itv->active_input) { - IVTV_DEBUG_INFO("Input unchanged\n"); - break; - } - if (atomic_read(&itv->capturing) > 0) { - return -EBUSY; - } - IVTV_DEBUG_INFO("Changing input from %d to %d\n", - itv->active_input, inp); + /* prevent others from messing with the streams until + we're finished changing inputs. */ + ivtv_mute(itv); + ivtv_video_set_io(itv); + ivtv_audio_set_io(itv); + ivtv_unmute(itv); + + return 0; +} - itv->active_input = inp; - /* Set the audio input to whatever is appropriate for the - input type. */ - itv->audio_input = itv->card->video_inputs[inp].audio_index; +static int ivtv_g_output(struct file *file, void *fh, unsigned int *i) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - /* prevent others from messing with the streams until - we're finished changing inputs. */ - ivtv_mute(itv); - ivtv_video_set_io(itv); - ivtv_audio_set_io(itv); - ivtv_unmute(itv); - break; - } + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) + return -EINVAL; - case VIDIOC_G_OUTPUT:{ - if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) - return -EINVAL; - *(int *)arg = itv->active_output; - break; - } + *i = itv->active_output; - case VIDIOC_S_OUTPUT:{ - int outp = *(int *)arg; - struct v4l2_routing route; + return 0; +} - if (outp >= itv->card->nof_outputs) - return -EINVAL; +static int ivtv_s_output(struct file *file, void *fh, unsigned int outp) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + struct v4l2_routing route; - if (outp == itv->active_output) { - IVTV_DEBUG_INFO("Output unchanged\n"); - break; - } - IVTV_DEBUG_INFO("Changing output from %d to %d\n", - itv->active_output, outp); + if (outp >= itv->card->nof_outputs) + return -EINVAL; - itv->active_output = outp; - route.input = SAA7127_INPUT_TYPE_NORMAL; - route.output = itv->card->video_outputs[outp].video_output; - ivtv_saa7127(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); - break; + if (outp == itv->active_output) { + IVTV_DEBUG_INFO("Output unchanged\n"); + return 0; } + IVTV_DEBUG_INFO("Changing output from %d to %d\n", + itv->active_output, outp); - case VIDIOC_G_FREQUENCY:{ - struct v4l2_frequency *vf = arg; + itv->active_output = outp; + route.input = SAA7127_INPUT_TYPE_NORMAL; + route.output = itv->card->video_outputs[outp].video_output; + ivtv_saa7127(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); - if (vf->tuner != 0) - return -EINVAL; - ivtv_call_i2c_clients(itv, cmd, arg); - break; - } + return 0; +} - case VIDIOC_S_FREQUENCY:{ - struct v4l2_frequency vf = *(struct v4l2_frequency *)arg; +static int ivtv_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - if (vf.tuner != 0) - return -EINVAL; + if (vf->tuner != 0) + return -EINVAL; - ivtv_mute(itv); - IVTV_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf.frequency); - ivtv_call_i2c_clients(itv, cmd, &vf); - ivtv_unmute(itv); - break; - } + ivtv_call_i2c_clients(itv, VIDIOC_G_FREQUENCY, vf); + return 0; +} - case VIDIOC_ENUMSTD:{ - struct v4l2_standard *vs = arg; - int idx = vs->index; +int ivtv_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - if (idx < 0 || idx >= ARRAY_SIZE(enum_stds)) - return -EINVAL; + if (vf->tuner != 0) + return -EINVAL; - *vs = (enum_stds[idx].std & V4L2_STD_525_60) ? - ivtv_std_60hz : ivtv_std_50hz; - vs->index = idx; - vs->id = enum_stds[idx].std; - strlcpy(vs->name, enum_stds[idx].name, sizeof(vs->name)); - break; - } + ivtv_mute(itv); + IVTV_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency); + ivtv_call_i2c_clients(itv, VIDIOC_S_FREQUENCY, vf); + ivtv_unmute(itv); + return 0; +} - case VIDIOC_G_STD:{ - *(v4l2_std_id *) arg = itv->std; - break; - } +static int ivtv_g_std(struct file *file, void *fh, v4l2_std_id *std) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - case VIDIOC_S_STD: { - v4l2_std_id std = *(v4l2_std_id *) arg; + *std = itv->std; + return 0; +} - if ((std & V4L2_STD_ALL) == 0) - return -EINVAL; +int ivtv_s_std(struct file *file, void *fh, v4l2_std_id *std) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + struct yuv_playback_info *yi = &itv->yuv_info; - if (std == itv->std) - break; + if ((*std & V4L2_STD_ALL) == 0) + return -EINVAL; - if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags) || - atomic_read(&itv->capturing) > 0 || - atomic_read(&itv->decoding) > 0) { - /* Switching standard would turn off the radio or mess - with already running streams, prevent that by - returning EBUSY. */ - return -EBUSY; - } + if (*std == itv->std) + return 0; - itv->std = std; - itv->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0; - itv->params.is_50hz = itv->is_50hz = !itv->is_60hz; - itv->params.width = 720; - itv->params.height = itv->is_50hz ? 576 : 480; - itv->vbi.count = itv->is_50hz ? 18 : 12; - itv->vbi.start[0] = itv->is_50hz ? 6 : 10; - itv->vbi.start[1] = itv->is_50hz ? 318 : 273; - if (itv->hw_flags & IVTV_HW_CX25840) { - itv->vbi.sliced_decoder_line_size = itv->is_60hz ? 272 : 284; - } - IVTV_DEBUG_INFO("Switching standard to %llx.\n", (unsigned long long)itv->std); - - /* Tuner */ - ivtv_call_i2c_clients(itv, VIDIOC_S_STD, &itv->std); - - if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) { - /* set display standard */ - itv->std_out = std; - itv->is_out_60hz = itv->is_60hz; - itv->is_out_50hz = itv->is_50hz; - ivtv_call_i2c_clients(itv, VIDIOC_INT_S_STD_OUTPUT, &itv->std_out); - ivtv_vapi(itv, CX2341X_DEC_SET_STANDARD, 1, itv->is_out_50hz); - itv->main_rect.left = itv->main_rect.top = 0; - itv->main_rect.width = 720; - itv->main_rect.height = itv->params.height; - ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4, - 720, itv->main_rect.height, 0, 0); - yi->main_rect = itv->main_rect; - if (!itv->osd_info) { - yi->osd_full_w = 720; - yi->osd_full_h = itv->is_out_50hz ? 576 : 480; - } + if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags) || + atomic_read(&itv->capturing) > 0 || + atomic_read(&itv->decoding) > 0) { + /* Switching standard would turn off the radio or mess + with already running streams, prevent that by + returning EBUSY. */ + return -EBUSY; + } + + itv->std = *std; + itv->is_60hz = (*std & V4L2_STD_525_60) ? 1 : 0; + itv->params.is_50hz = itv->is_50hz = !itv->is_60hz; + itv->params.width = 720; + itv->params.height = itv->is_50hz ? 576 : 480; + itv->vbi.count = itv->is_50hz ? 18 : 12; + itv->vbi.start[0] = itv->is_50hz ? 6 : 10; + itv->vbi.start[1] = itv->is_50hz ? 318 : 273; + + if (itv->hw_flags & IVTV_HW_CX25840) + itv->vbi.sliced_decoder_line_size = itv->is_60hz ? 272 : 284; + + IVTV_DEBUG_INFO("Switching standard to %llx.\n", (unsigned long long)itv->std); + + /* Tuner */ + ivtv_call_i2c_clients(itv, VIDIOC_S_STD, &itv->std); + + if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) { + /* set display standard */ + itv->std_out = *std; + itv->is_out_60hz = itv->is_60hz; + itv->is_out_50hz = itv->is_50hz; + ivtv_call_i2c_clients(itv, VIDIOC_INT_S_STD_OUTPUT, &itv->std_out); + ivtv_vapi(itv, CX2341X_DEC_SET_STANDARD, 1, itv->is_out_50hz); + itv->main_rect.left = itv->main_rect.top = 0; + itv->main_rect.width = 720; + itv->main_rect.height = itv->params.height; + ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4, + 720, itv->main_rect.height, 0, 0); + yi->main_rect = itv->main_rect; + if (!itv->osd_info) { + yi->osd_full_w = 720; + yi->osd_full_h = itv->is_out_50hz ? 576 : 480; } - break; } + return 0; +} - case VIDIOC_S_TUNER: { /* Setting tuner can only set audio mode */ - struct v4l2_tuner *vt = arg; +static int ivtv_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; - if (vt->index != 0) - return -EINVAL; + if (vt->index != 0) + return -EINVAL; - ivtv_call_i2c_clients(itv, VIDIOC_S_TUNER, vt); - break; - } + ivtv_call_i2c_clients(itv, VIDIOC_S_TUNER, vt); - case VIDIOC_G_TUNER: { - struct v4l2_tuner *vt = arg; + return 0; +} - if (vt->index != 0) - return -EINVAL; +static int ivtv_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; - memset(vt, 0, sizeof(*vt)); - ivtv_call_i2c_clients(itv, VIDIOC_G_TUNER, vt); + if (vt->index != 0) + return -EINVAL; - if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) { - strlcpy(vt->name, "ivtv Radio Tuner", sizeof(vt->name)); - vt->type = V4L2_TUNER_RADIO; - } else { - strlcpy(vt->name, "ivtv TV Tuner", sizeof(vt->name)); - vt->type = V4L2_TUNER_ANALOG_TV; - } - break; + ivtv_call_i2c_clients(itv, VIDIOC_G_TUNER, vt); + + if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) { + strlcpy(vt->name, "ivtv Radio Tuner", sizeof(vt->name)); + vt->type = V4L2_TUNER_RADIO; + } else { + strlcpy(vt->name, "ivtv TV Tuner", sizeof(vt->name)); + vt->type = V4L2_TUNER_ANALOG_TV; } - case VIDIOC_G_SLICED_VBI_CAP: { - struct v4l2_sliced_vbi_cap *cap = arg; - int set = itv->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; - int f, l; - enum v4l2_buf_type type = cap->type; - - memset(cap, 0, sizeof(*cap)); - cap->type = type; - if (type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) { - for (f = 0; f < 2; f++) { - for (l = 0; l < 24; l++) { - if (valid_service_line(f, l, itv->is_50hz)) { - cap->service_lines[f][l] = set; - } - } + return 0; +} + +static int ivtv_g_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_sliced_vbi_cap *cap) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + int set = itv->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525; + int f, l; + + if (cap->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) { + for (f = 0; f < 2; f++) { + for (l = 0; l < 24; l++) { + if (valid_service_line(f, l, itv->is_50hz)) + cap->service_lines[f][l] = set; } - return 0; } - if (type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) { - if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT)) - return -EINVAL; - if (itv->is_60hz) { - cap->service_lines[0][21] = V4L2_SLICED_CAPTION_525; - cap->service_lines[1][21] = V4L2_SLICED_CAPTION_525; - } else { - cap->service_lines[0][23] = V4L2_SLICED_WSS_625; - cap->service_lines[0][16] = V4L2_SLICED_VPS; - } - return 0; + return 0; + } + if (cap->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) { + if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT)) + return -EINVAL; + if (itv->is_60hz) { + cap->service_lines[0][21] = V4L2_SLICED_CAPTION_525; + cap->service_lines[1][21] = V4L2_SLICED_CAPTION_525; + } else { + cap->service_lines[0][23] = V4L2_SLICED_WSS_625; + cap->service_lines[0][16] = V4L2_SLICED_VPS; } - return -EINVAL; + return 0; } + return -EINVAL; +} - case VIDIOC_G_ENC_INDEX: { - struct v4l2_enc_idx *idx = arg; - struct v4l2_enc_idx_entry *e = idx->entry; - int entries; - int i; - - entries = (itv->pgm_info_write_idx + IVTV_MAX_PGM_INDEX - itv->pgm_info_read_idx) % - IVTV_MAX_PGM_INDEX; - if (entries > V4L2_ENC_IDX_ENTRIES) - entries = V4L2_ENC_IDX_ENTRIES; - idx->entries = 0; - for (i = 0; i < entries; i++) { - *e = itv->pgm_info[(itv->pgm_info_read_idx + i) % IVTV_MAX_PGM_INDEX]; - if ((e->flags & V4L2_ENC_IDX_FRAME_MASK) <= V4L2_ENC_IDX_FRAME_B) { - idx->entries++; - e++; - } +static int ivtv_g_enc_index(struct file *file, void *fh, struct v4l2_enc_idx *idx) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + struct v4l2_enc_idx_entry *e = idx->entry; + int entries; + int i; + + entries = (itv->pgm_info_write_idx + IVTV_MAX_PGM_INDEX - itv->pgm_info_read_idx) % + IVTV_MAX_PGM_INDEX; + if (entries > V4L2_ENC_IDX_ENTRIES) + entries = V4L2_ENC_IDX_ENTRIES; + idx->entries = 0; + for (i = 0; i < entries; i++) { + *e = itv->pgm_info[(itv->pgm_info_read_idx + i) % IVTV_MAX_PGM_INDEX]; + if ((e->flags & V4L2_ENC_IDX_FRAME_MASK) <= V4L2_ENC_IDX_FRAME_B) { + idx->entries++; + e++; } - itv->pgm_info_read_idx = (itv->pgm_info_read_idx + idx->entries) % IVTV_MAX_PGM_INDEX; - break; } + itv->pgm_info_read_idx = (itv->pgm_info_read_idx + idx->entries) % IVTV_MAX_PGM_INDEX; + return 0; +} - case VIDIOC_ENCODER_CMD: - case VIDIOC_TRY_ENCODER_CMD: { - struct v4l2_encoder_cmd *enc = arg; - int try = cmd == VIDIOC_TRY_ENCODER_CMD; - - memset(&enc->raw, 0, sizeof(enc->raw)); - switch (enc->cmd) { - case V4L2_ENC_CMD_START: - IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); - enc->flags = 0; - if (try) - return 0; - return ivtv_start_capture(id); +static int ivtv_encoder_cmd(struct file *file, void *fh, struct v4l2_encoder_cmd *enc) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; - case V4L2_ENC_CMD_STOP: - IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); - enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; - if (try) - return 0; - ivtv_stop_capture(id, enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); + + switch (enc->cmd) { + case V4L2_ENC_CMD_START: + IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); + enc->flags = 0; + return ivtv_start_capture(id); + + case V4L2_ENC_CMD_STOP: + IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); + enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; + ivtv_stop_capture(id, enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END); + return 0; + + case V4L2_ENC_CMD_PAUSE: + IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); + enc->flags = 0; + + if (!atomic_read(&itv->capturing)) + return -EPERM; + if (test_and_set_bit(IVTV_F_I_ENC_PAUSED, &itv->i_flags)) return 0; - case V4L2_ENC_CMD_PAUSE: - IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); - enc->flags = 0; - if (try) - return 0; - if (!atomic_read(&itv->capturing)) - return -EPERM; - if (test_and_set_bit(IVTV_F_I_ENC_PAUSED, &itv->i_flags)) - return 0; - ivtv_mute(itv); - ivtv_vapi(itv, CX2341X_ENC_PAUSE_ENCODER, 1, 0); - break; + ivtv_mute(itv); + ivtv_vapi(itv, CX2341X_ENC_PAUSE_ENCODER, 1, 0); + break; - case V4L2_ENC_CMD_RESUME: - IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); - enc->flags = 0; - if (try) - return 0; - if (!atomic_read(&itv->capturing)) - return -EPERM; - if (!test_and_clear_bit(IVTV_F_I_ENC_PAUSED, &itv->i_flags)) - return 0; - ivtv_vapi(itv, CX2341X_ENC_PAUSE_ENCODER, 1, 1); - ivtv_unmute(itv); - break; - default: - IVTV_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); - return -EINVAL; - } + case V4L2_ENC_CMD_RESUME: + IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); + enc->flags = 0; + + if (!atomic_read(&itv->capturing)) + return -EPERM; + + if (!test_and_clear_bit(IVTV_F_I_ENC_PAUSED, &itv->i_flags)) + return 0; + + ivtv_vapi(itv, CX2341X_ENC_PAUSE_ENCODER, 1, 1); + ivtv_unmute(itv); break; + default: + IVTV_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); + return -EINVAL; } - case VIDIOC_G_FBUF: { - struct v4l2_framebuffer *fb = arg; - int pixfmt; - static u32 pixel_format[16] = { - V4L2_PIX_FMT_PAL8, /* Uses a 256-entry RGB colormap */ - V4L2_PIX_FMT_RGB565, - V4L2_PIX_FMT_RGB555, - V4L2_PIX_FMT_RGB444, - V4L2_PIX_FMT_RGB32, - 0, - 0, - 0, - V4L2_PIX_FMT_PAL8, /* Uses a 256-entry YUV colormap */ - V4L2_PIX_FMT_YUV565, - V4L2_PIX_FMT_YUV555, - V4L2_PIX_FMT_YUV444, - V4L2_PIX_FMT_YUV32, - 0, - 0, - 0, - }; + return 0; +} - memset(fb, 0, sizeof(*fb)); - if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY)) - return -EINVAL; - fb->capability = V4L2_FBUF_CAP_EXTERNOVERLAY | V4L2_FBUF_CAP_CHROMAKEY | - V4L2_FBUF_CAP_GLOBAL_ALPHA; - ivtv_vapi_result(itv, data, CX2341X_OSD_GET_STATE, 0); - data[0] |= (read_reg(0x2a00) >> 7) & 0x40; - pixfmt = (data[0] >> 3) & 0xf; - fb->fmt.pixelformat = pixel_format[pixfmt]; - fb->fmt.width = itv->osd_rect.width; - fb->fmt.height = itv->osd_rect.height; - fb->base = (void *)itv->osd_video_pbase; - if (itv->osd_chroma_key_state) - fb->flags |= V4L2_FBUF_FLAG_CHROMAKEY; - if (itv->osd_global_alpha_state) - fb->flags |= V4L2_FBUF_FLAG_GLOBAL_ALPHA; - pixfmt &= 7; - /* no local alpha for RGB565 or unknown formats */ - if (pixfmt == 1 || pixfmt > 4) - break; +static int ivtv_try_encoder_cmd(struct file *file, void *fh, struct v4l2_encoder_cmd *enc) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + + switch (enc->cmd) { + case V4L2_ENC_CMD_START: + IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_START\n"); + enc->flags = 0; + return 0; + + case V4L2_ENC_CMD_STOP: + IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n"); + enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END; + return 0; + + case V4L2_ENC_CMD_PAUSE: + IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n"); + enc->flags = 0; + return 0; + + case V4L2_ENC_CMD_RESUME: + IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n"); + enc->flags = 0; + return 0; + default: + IVTV_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd); + return -EINVAL; + } +} + +static int ivtv_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + u32 data[CX2341X_MBOX_MAX_DATA]; + struct yuv_playback_info *yi = &itv->yuv_info; + + int pixfmt; + static u32 pixel_format[16] = { + V4L2_PIX_FMT_PAL8, /* Uses a 256-entry RGB colormap */ + V4L2_PIX_FMT_RGB565, + V4L2_PIX_FMT_RGB555, + V4L2_PIX_FMT_RGB444, + V4L2_PIX_FMT_RGB32, + 0, + 0, + 0, + V4L2_PIX_FMT_PAL8, /* Uses a 256-entry YUV colormap */ + V4L2_PIX_FMT_YUV565, + V4L2_PIX_FMT_YUV555, + V4L2_PIX_FMT_YUV444, + V4L2_PIX_FMT_YUV32, + 0, + 0, + 0, + }; + + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY)) + return -EINVAL; + if (!itv->osd_video_pbase) + return -EINVAL; + + fb->capability = V4L2_FBUF_CAP_EXTERNOVERLAY | V4L2_FBUF_CAP_CHROMAKEY | + V4L2_FBUF_CAP_GLOBAL_ALPHA; + + ivtv_vapi_result(itv, data, CX2341X_OSD_GET_STATE, 0); + data[0] |= (read_reg(0x2a00) >> 7) & 0x40; + pixfmt = (data[0] >> 3) & 0xf; + + fb->fmt.pixelformat = pixel_format[pixfmt]; + fb->fmt.width = itv->osd_rect.width; + fb->fmt.height = itv->osd_rect.height; + fb->fmt.field = V4L2_FIELD_INTERLACED; + fb->fmt.bytesperline = fb->fmt.width; + fb->fmt.colorspace = V4L2_COLORSPACE_SMPTE170M; + fb->fmt.field = V4L2_FIELD_INTERLACED; + fb->fmt.priv = 0; + if (fb->fmt.pixelformat != V4L2_PIX_FMT_PAL8) + fb->fmt.bytesperline *= 2; + if (fb->fmt.pixelformat == V4L2_PIX_FMT_RGB32 || + fb->fmt.pixelformat == V4L2_PIX_FMT_YUV32) + fb->fmt.bytesperline *= 2; + fb->fmt.sizeimage = fb->fmt.bytesperline * fb->fmt.height; + fb->base = (void *)itv->osd_video_pbase; + fb->flags = 0; + + if (itv->osd_chroma_key_state) + fb->flags |= V4L2_FBUF_FLAG_CHROMAKEY; + + if (itv->osd_global_alpha_state) + fb->flags |= V4L2_FBUF_FLAG_GLOBAL_ALPHA; + + pixfmt &= 7; + + /* no local alpha for RGB565 or unknown formats */ + if (pixfmt == 1 || pixfmt > 4) + return 0; + + /* 16-bit formats have inverted local alpha */ + if (pixfmt == 2 || pixfmt == 3) + fb->capability |= V4L2_FBUF_CAP_LOCAL_INV_ALPHA; + else + fb->capability |= V4L2_FBUF_CAP_LOCAL_ALPHA; + + if (itv->osd_local_alpha_state) { /* 16-bit formats have inverted local alpha */ if (pixfmt == 2 || pixfmt == 3) - fb->capability |= V4L2_FBUF_CAP_LOCAL_INV_ALPHA; + fb->flags |= V4L2_FBUF_FLAG_LOCAL_INV_ALPHA; else - fb->capability |= V4L2_FBUF_CAP_LOCAL_ALPHA; - if (itv->osd_local_alpha_state) { - /* 16-bit formats have inverted local alpha */ - if (pixfmt == 2 || pixfmt == 3) - fb->flags |= V4L2_FBUF_FLAG_LOCAL_INV_ALPHA; - else - fb->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA; - } - if (yi->track_osd) - fb->flags |= V4L2_FBUF_FLAG_OVERLAY; - break; + fb->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA; } + if (yi->track_osd) + fb->flags |= V4L2_FBUF_FLAG_OVERLAY; - case VIDIOC_S_FBUF: { - struct v4l2_framebuffer *fb = arg; + return 0; +} - if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY)) - return -EINVAL; - itv->osd_global_alpha_state = (fb->flags & V4L2_FBUF_FLAG_GLOBAL_ALPHA) != 0; - itv->osd_local_alpha_state = - (fb->flags & (V4L2_FBUF_FLAG_LOCAL_ALPHA|V4L2_FBUF_FLAG_LOCAL_INV_ALPHA)) != 0; - itv->osd_chroma_key_state = (fb->flags & V4L2_FBUF_FLAG_CHROMAKEY) != 0; - ivtv_set_osd_alpha(itv); - yi->track_osd = (fb->flags & V4L2_FBUF_FLAG_OVERLAY) != 0; - break; - } +static int ivtv_s_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; + struct yuv_playback_info *yi = &itv->yuv_info; - case VIDIOC_OVERLAY: { - int *on = arg; + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY)) + return -EINVAL; + if (!itv->osd_video_pbase) + return -EINVAL; - if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY)) - return -EINVAL; - ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, *on != 0); - break; - } + itv->osd_global_alpha_state = (fb->flags & V4L2_FBUF_FLAG_GLOBAL_ALPHA) != 0; + itv->osd_local_alpha_state = + (fb->flags & (V4L2_FBUF_FLAG_LOCAL_ALPHA|V4L2_FBUF_FLAG_LOCAL_INV_ALPHA)) != 0; + itv->osd_chroma_key_state = (fb->flags & V4L2_FBUF_FLAG_CHROMAKEY) != 0; + ivtv_set_osd_alpha(itv); + yi->track_osd = (fb->flags & V4L2_FBUF_FLAG_OVERLAY) != 0; + return ivtv_g_fbuf(file, fh, fb); +} - case VIDIOC_LOG_STATUS: - { - int has_output = itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT; - struct v4l2_input vidin; - struct v4l2_audio audin; - int i; +static int ivtv_overlay(struct file *file, void *fh, unsigned int on) +{ + struct ivtv_open_id *id = fh; + struct ivtv *itv = id->itv; - IVTV_INFO("================= START STATUS CARD #%d =================\n", itv->num); - IVTV_INFO("Version: %s Card: %s\n", IVTV_VERSION, itv->card_name); - if (itv->hw_flags & IVTV_HW_TVEEPROM) { - struct tveeprom tv; + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY)) + return -EINVAL; - ivtv_read_eeprom(itv, &tv); - } - ivtv_call_i2c_clients(itv, VIDIOC_LOG_STATUS, NULL); - ivtv_get_input(itv, itv->active_input, &vidin); - ivtv_get_audio_input(itv, itv->audio_input, &audin); - IVTV_INFO("Video Input: %s\n", vidin.name); - IVTV_INFO("Audio Input: %s%s\n", audin.name, - (itv->dualwatch_stereo_mode & ~0x300) == 0x200 ? " (Bilingual)" : ""); - if (has_output) { - struct v4l2_output vidout; - struct v4l2_audioout audout; - int mode = itv->output_mode; - static const char * const output_modes[5] = { - "None", - "MPEG Streaming", - "YUV Streaming", - "YUV Frames", - "Passthrough", - }; - static const char * const audio_modes[5] = { - "Stereo", - "Left", - "Right", - "Mono", - "Swapped" - }; - static const char * const alpha_mode[4] = { - "None", - "Global", - "Local", - "Global and Local" - }; - static const char * const pixel_format[16] = { - "ARGB Indexed", - "RGB 5:6:5", - "ARGB 1:5:5:5", - "ARGB 1:4:4:4", - "ARGB 8:8:8:8", - "5", - "6", - "7", - "AYUV Indexed", - "YUV 5:6:5", - "AYUV 1:5:5:5", - "AYUV 1:4:4:4", - "AYUV 8:8:8:8", - "13", - "14", - "15", - }; - - ivtv_get_output(itv, itv->active_output, &vidout); - ivtv_get_audio_output(itv, 0, &audout); - IVTV_INFO("Video Output: %s\n", vidout.name); - IVTV_INFO("Audio Output: %s (Stereo/Bilingual: %s/%s)\n", audout.name, - audio_modes[itv->audio_stereo_mode], - audio_modes[itv->audio_bilingual_mode]); - if (mode < 0 || mode > OUT_PASSTHROUGH) - mode = OUT_NONE; - IVTV_INFO("Output Mode: %s\n", output_modes[mode]); - ivtv_vapi_result(itv, data, CX2341X_OSD_GET_STATE, 0); - data[0] |= (read_reg(0x2a00) >> 7) & 0x40; - IVTV_INFO("Overlay: %s, Alpha: %s, Pixel Format: %s\n", - data[0] & 1 ? "On" : "Off", - alpha_mode[(data[0] >> 1) & 0x3], - pixel_format[(data[0] >> 3) & 0xf]); - } - IVTV_INFO("Tuner: %s\n", - test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags) ? "Radio" : "TV"); - cx2341x_log_status(&itv->params, itv->name); - IVTV_INFO("Status flags: 0x%08lx\n", itv->i_flags); - for (i = 0; i < IVTV_MAX_STREAMS; i++) { - struct ivtv_stream *s = &itv->streams[i]; - - if (s->v4l2dev == NULL || s->buffers == 0) - continue; - IVTV_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", s->name, s->s_flags, - (s->buffers - s->q_free.buffers) * 100 / s->buffers, - (s->buffers * s->buf_size) / 1024, s->buffers); - } - IVTV_INFO("Read MPG/VBI: %lld/%lld bytes\n", (long long)itv->mpg_data_received, (long long)itv->vbi_data_inserted); - IVTV_INFO("================== END STATUS CARD #%d ==================\n", itv->num); - break; + ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, on != 0); + + return 0; +} + +static int ivtv_log_status(struct file *file, void *fh) +{ + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; + u32 data[CX2341X_MBOX_MAX_DATA]; + + int has_output = itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT; + struct v4l2_input vidin; + struct v4l2_audio audin; + int i; + + IVTV_INFO("================= START STATUS CARD #%d =================\n", itv->num); + IVTV_INFO("Version: %s Card: %s\n", IVTV_VERSION, itv->card_name); + if (itv->hw_flags & IVTV_HW_TVEEPROM) { + struct tveeprom tv; + + ivtv_read_eeprom(itv, &tv); + } + ivtv_call_i2c_clients(itv, VIDIOC_LOG_STATUS, NULL); + ivtv_get_input(itv, itv->active_input, &vidin); + ivtv_get_audio_input(itv, itv->audio_input, &audin); + IVTV_INFO("Video Input: %s\n", vidin.name); + IVTV_INFO("Audio Input: %s%s\n", audin.name, + (itv->dualwatch_stereo_mode & ~0x300) == 0x200 ? " (Bilingual)" : ""); + if (has_output) { + struct v4l2_output vidout; + struct v4l2_audioout audout; + int mode = itv->output_mode; + static const char * const output_modes[5] = { + "None", + "MPEG Streaming", + "YUV Streaming", + "YUV Frames", + "Passthrough", + }; + static const char * const audio_modes[5] = { + "Stereo", + "Left", + "Right", + "Mono", + "Swapped" + }; + static const char * const alpha_mode[4] = { + "None", + "Global", + "Local", + "Global and Local" + }; + static const char * const pixel_format[16] = { + "ARGB Indexed", + "RGB 5:6:5", + "ARGB 1:5:5:5", + "ARGB 1:4:4:4", + "ARGB 8:8:8:8", + "5", + "6", + "7", + "AYUV Indexed", + "YUV 5:6:5", + "AYUV 1:5:5:5", + "AYUV 1:4:4:4", + "AYUV 8:8:8:8", + "13", + "14", + "15", + }; + + ivtv_get_output(itv, itv->active_output, &vidout); + ivtv_get_audio_output(itv, 0, &audout); + IVTV_INFO("Video Output: %s\n", vidout.name); + IVTV_INFO("Audio Output: %s (Stereo/Bilingual: %s/%s)\n", audout.name, + audio_modes[itv->audio_stereo_mode], + audio_modes[itv->audio_bilingual_mode]); + if (mode < 0 || mode > OUT_PASSTHROUGH) + mode = OUT_NONE; + IVTV_INFO("Output Mode: %s\n", output_modes[mode]); + ivtv_vapi_result(itv, data, CX2341X_OSD_GET_STATE, 0); + data[0] |= (read_reg(0x2a00) >> 7) & 0x40; + IVTV_INFO("Overlay: %s, Alpha: %s, Pixel Format: %s\n", + data[0] & 1 ? "On" : "Off", + alpha_mode[(data[0] >> 1) & 0x3], + pixel_format[(data[0] >> 3) & 0xf]); } + IVTV_INFO("Tuner: %s\n", + test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags) ? "Radio" : "TV"); + cx2341x_log_status(&itv->params, itv->name); + IVTV_INFO("Status flags: 0x%08lx\n", itv->i_flags); + for (i = 0; i < IVTV_MAX_STREAMS; i++) { + struct ivtv_stream *s = &itv->streams[i]; - default: - return -EINVAL; + if (s->v4l2dev == NULL || s->buffers == 0) + continue; + IVTV_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", s->name, s->s_flags, + (s->buffers - s->q_free.buffers) * 100 / s->buffers, + (s->buffers * s->buf_size) / 1024, s->buffers); } + + IVTV_INFO("Read MPG/VBI: %lld/%lld bytes\n", (long long)itv->mpg_data_received, (long long)itv->vbi_data_inserted); + IVTV_INFO("================== END STATUS CARD #%d ==================\n", itv->num); + return 0; } @@ -1433,7 +1547,7 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg) return -EINVAL; if (itv->output_mode == OUT_UDMA_YUV && args->y_source == NULL) return 0; - if (ivtv_claim_stream(id, id->type)) { + if (ivtv_start_decoding(id, id->type)) { return -EBUSY; } if (ivtv_set_output_mode(itv, OUT_UDMA_YUV) != OUT_UDMA_YUV) { @@ -1607,121 +1721,30 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg) return 0; } -static int ivtv_v4l2_do_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, void *arg) +static int ivtv_default(struct file *file, void *fh, int cmd, void *arg) { - struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data; - struct ivtv *itv = id->itv; - int ret; - - /* check priority */ - switch (cmd) { - case VIDIOC_S_CTRL: - case VIDIOC_S_STD: - case VIDIOC_S_INPUT: - case VIDIOC_S_OUTPUT: - case VIDIOC_S_TUNER: - case VIDIOC_S_FREQUENCY: - case VIDIOC_S_FMT: - case VIDIOC_S_CROP: - case VIDIOC_S_AUDIO: - case VIDIOC_S_AUDOUT: - case VIDIOC_S_EXT_CTRLS: - case VIDIOC_S_FBUF: - case VIDIOC_OVERLAY: - ret = v4l2_prio_check(&itv->prio, &id->prio); - if (ret) - return ret; - } + struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; switch (cmd) { - case VIDIOC_DBG_G_REGISTER: - case VIDIOC_DBG_S_REGISTER: - case VIDIOC_G_CHIP_IDENT: - case VIDIOC_INT_S_AUDIO_ROUTING: - case VIDIOC_INT_RESET: - if (ivtv_debug & IVTV_DBGFLG_IOCTL) { - printk(KERN_INFO "ivtv%d ioctl: ", itv->num); - v4l_printk_ioctl(cmd); - printk("\n"); - } - return ivtv_debug_ioctls(filp, cmd, arg); + case VIDIOC_INT_S_AUDIO_ROUTING: { + struct v4l2_routing *route = arg; - case VIDIOC_G_PRIORITY: - case VIDIOC_S_PRIORITY: - case VIDIOC_QUERYCAP: - case VIDIOC_ENUMINPUT: - case VIDIOC_G_INPUT: - case VIDIOC_S_INPUT: - case VIDIOC_ENUMOUTPUT: - case VIDIOC_G_OUTPUT: - case VIDIOC_S_OUTPUT: - case VIDIOC_G_FMT: - case VIDIOC_S_FMT: - case VIDIOC_TRY_FMT: - case VIDIOC_ENUM_FMT: - case VIDIOC_CROPCAP: - case VIDIOC_G_CROP: - case VIDIOC_S_CROP: - case VIDIOC_G_FREQUENCY: - case VIDIOC_S_FREQUENCY: - case VIDIOC_ENUMSTD: - case VIDIOC_G_STD: - case VIDIOC_S_STD: - case VIDIOC_S_TUNER: - case VIDIOC_G_TUNER: - case VIDIOC_ENUMAUDIO: - case VIDIOC_S_AUDIO: - case VIDIOC_G_AUDIO: - case VIDIOC_ENUMAUDOUT: - case VIDIOC_S_AUDOUT: - case VIDIOC_G_AUDOUT: - case VIDIOC_G_SLICED_VBI_CAP: - case VIDIOC_LOG_STATUS: - case VIDIOC_G_ENC_INDEX: - case VIDIOC_ENCODER_CMD: - case VIDIOC_TRY_ENCODER_CMD: - case VIDIOC_G_FBUF: - case VIDIOC_S_FBUF: - case VIDIOC_OVERLAY: - if (ivtv_debug & IVTV_DBGFLG_IOCTL) { - printk(KERN_INFO "ivtv%d ioctl: ", itv->num); - v4l_printk_ioctl(cmd); - printk("\n"); - } - return ivtv_v4l2_ioctls(itv, filp, cmd, arg); + ivtv_i2c_hw(itv, itv->card->hw_audio, VIDIOC_INT_S_AUDIO_ROUTING, route); + break; + } - case VIDIOC_QUERYMENU: - case VIDIOC_QUERYCTRL: - case VIDIOC_S_CTRL: - case VIDIOC_G_CTRL: - case VIDIOC_S_EXT_CTRLS: - case VIDIOC_G_EXT_CTRLS: - case VIDIOC_TRY_EXT_CTRLS: - if (ivtv_debug & IVTV_DBGFLG_IOCTL) { - printk(KERN_INFO "ivtv%d ioctl: ", itv->num); - v4l_printk_ioctl(cmd); - printk("\n"); - } - return ivtv_control_ioctls(itv, cmd, arg); + case VIDIOC_INT_RESET: { + u32 val = *(u32 *)arg; - case IVTV_IOC_DMA_FRAME: - case VIDEO_GET_PTS: - case VIDEO_GET_FRAME_COUNT: - case VIDEO_GET_EVENT: - case VIDEO_PLAY: - case VIDEO_STOP: - case VIDEO_FREEZE: - case VIDEO_CONTINUE: - case VIDEO_COMMAND: - case VIDEO_TRY_COMMAND: - return ivtv_decoder_ioctls(filp, cmd, arg); + if ((val == 0 && itv->options.newi2c) || (val & 0x01)) + ivtv_reset_ir_gpio(itv); + if (val & 0x02) + itv->video_dec_func(itv, cmd, NULL); + break; + } - case 0x00005401: /* Handle isatty() calls */ - return -EINVAL; default: - return v4l_compat_translate_ioctl(inode, filp, cmd, arg, - ivtv_v4l2_do_ioctl); + return -EINVAL; } return 0; } @@ -1729,7 +1752,11 @@ static int ivtv_v4l2_do_ioctl(struct inode *inode, struct file *filp, static int ivtv_serialized_ioctl(struct ivtv *itv, struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { - /* Filter dvb ioctls that cannot be handled by video_usercopy */ + struct video_device *vfd = video_devdata(filp); + struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data; + int ret; + + /* Filter dvb ioctls that cannot be handled by the v4l ioctl framework */ switch (cmd) { case VIDEO_SELECT_SOURCE: IVTV_DEBUG_IOCTL("VIDEO_SELECT_SOURCE\n"); @@ -1758,10 +1785,47 @@ static int ivtv_serialized_ioctl(struct ivtv *itv, struct inode *inode, struct f ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode); return 0; + case IVTV_IOC_DMA_FRAME: + case VIDEO_GET_PTS: + case VIDEO_GET_FRAME_COUNT: + case VIDEO_GET_EVENT: + case VIDEO_PLAY: + case VIDEO_STOP: + case VIDEO_FREEZE: + case VIDEO_CONTINUE: + case VIDEO_COMMAND: + case VIDEO_TRY_COMMAND: + return ivtv_decoder_ioctls(filp, cmd, (void *)arg); + default: break; } - return video_usercopy(inode, filp, cmd, arg, ivtv_v4l2_do_ioctl); + + /* check priority */ + switch (cmd) { + case VIDIOC_S_CTRL: + case VIDIOC_S_STD: + case VIDIOC_S_INPUT: + case VIDIOC_S_OUTPUT: + case VIDIOC_S_TUNER: + case VIDIOC_S_FREQUENCY: + case VIDIOC_S_FMT: + case VIDIOC_S_CROP: + case VIDIOC_S_AUDIO: + case VIDIOC_S_AUDOUT: + case VIDIOC_S_EXT_CTRLS: + case VIDIOC_S_FBUF: + case VIDIOC_OVERLAY: + ret = v4l2_prio_check(&itv->prio, &id->prio); + if (ret) + return ret; + } + + if (ivtv_debug & IVTV_DBGFLG_IOCTL) + vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG; + ret = video_ioctl2(inode, filp, cmd, arg); + vfd->debug = 0; + return ret; } int ivtv_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, @@ -1776,3 +1840,70 @@ int ivtv_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, mutex_unlock(&itv->serialize_lock); return res; } + +void ivtv_set_funcs(struct video_device *vdev) +{ + vdev->vidioc_querycap = ivtv_querycap; + vdev->vidioc_g_priority = ivtv_g_priority; + vdev->vidioc_s_priority = ivtv_s_priority; + vdev->vidioc_s_audio = ivtv_s_audio; + vdev->vidioc_g_audio = ivtv_g_audio; + vdev->vidioc_enumaudio = ivtv_enumaudio; + vdev->vidioc_s_audout = ivtv_s_audout; + vdev->vidioc_g_audout = ivtv_g_audout; + vdev->vidioc_enum_input = ivtv_enum_input; + vdev->vidioc_enum_output = ivtv_enum_output; + vdev->vidioc_enumaudout = ivtv_enumaudout; + vdev->vidioc_cropcap = ivtv_cropcap; + vdev->vidioc_s_crop = ivtv_s_crop; + vdev->vidioc_g_crop = ivtv_g_crop; + vdev->vidioc_g_input = ivtv_g_input; + vdev->vidioc_s_input = ivtv_s_input; + vdev->vidioc_g_output = ivtv_g_output; + vdev->vidioc_s_output = ivtv_s_output; + vdev->vidioc_g_frequency = ivtv_g_frequency; + vdev->vidioc_s_frequency = ivtv_s_frequency; + vdev->vidioc_s_tuner = ivtv_s_tuner; + vdev->vidioc_g_tuner = ivtv_g_tuner; + vdev->vidioc_g_enc_index = ivtv_g_enc_index; + vdev->vidioc_g_fbuf = ivtv_g_fbuf; + vdev->vidioc_s_fbuf = ivtv_s_fbuf; + vdev->vidioc_g_std = ivtv_g_std; + vdev->vidioc_s_std = ivtv_s_std; + vdev->vidioc_overlay = ivtv_overlay; + vdev->vidioc_log_status = ivtv_log_status; + vdev->vidioc_enum_fmt_vid_cap = ivtv_enum_fmt_vid_cap; + vdev->vidioc_encoder_cmd = ivtv_encoder_cmd; + vdev->vidioc_try_encoder_cmd = ivtv_try_encoder_cmd; + vdev->vidioc_enum_fmt_vid_out = ivtv_enum_fmt_vid_out; + vdev->vidioc_g_fmt_vid_cap = ivtv_g_fmt_vid_cap; + vdev->vidioc_g_fmt_vbi_cap = ivtv_g_fmt_vbi_cap; + vdev->vidioc_g_fmt_sliced_vbi_cap = ivtv_g_fmt_sliced_vbi_cap; + vdev->vidioc_g_fmt_vid_out = ivtv_g_fmt_vid_out; + vdev->vidioc_g_fmt_vid_out_overlay = ivtv_g_fmt_vid_out_overlay; + vdev->vidioc_g_fmt_sliced_vbi_out = ivtv_g_fmt_sliced_vbi_out; + vdev->vidioc_s_fmt_vid_cap = ivtv_s_fmt_vid_cap; + vdev->vidioc_s_fmt_vbi_cap = ivtv_s_fmt_vbi_cap; + vdev->vidioc_s_fmt_sliced_vbi_cap = ivtv_s_fmt_sliced_vbi_cap; + vdev->vidioc_s_fmt_vid_out = ivtv_s_fmt_vid_out; + vdev->vidioc_s_fmt_vid_out_overlay = ivtv_s_fmt_vid_out_overlay; + vdev->vidioc_s_fmt_sliced_vbi_out = ivtv_s_fmt_sliced_vbi_out; + vdev->vidioc_try_fmt_vid_cap = ivtv_try_fmt_vid_cap; + vdev->vidioc_try_fmt_vbi_cap = ivtv_try_fmt_vbi_cap; + vdev->vidioc_try_fmt_sliced_vbi_cap = ivtv_try_fmt_sliced_vbi_cap; + vdev->vidioc_try_fmt_vid_out = ivtv_try_fmt_vid_out; + vdev->vidioc_try_fmt_vid_out_overlay = ivtv_try_fmt_vid_out_overlay; + vdev->vidioc_try_fmt_sliced_vbi_out = ivtv_try_fmt_sliced_vbi_out; + vdev->vidioc_g_sliced_vbi_cap = ivtv_g_sliced_vbi_cap; + vdev->vidioc_g_chip_ident = ivtv_g_chip_ident; + vdev->vidioc_g_register = ivtv_g_register; + vdev->vidioc_s_register = ivtv_s_register; + vdev->vidioc_default = ivtv_default; + vdev->vidioc_queryctrl = ivtv_queryctrl; + vdev->vidioc_querymenu = ivtv_querymenu; + vdev->vidioc_g_ctrl = ivtv_g_ctrl; + vdev->vidioc_s_ctrl = ivtv_s_ctrl; + vdev->vidioc_g_ext_ctrls = ivtv_g_ext_ctrls; + vdev->vidioc_s_ext_ctrls = ivtv_s_ext_ctrls; + vdev->vidioc_try_ext_ctrls = ivtv_try_ext_ctrls; +} diff --git a/drivers/media/video/ivtv/ivtv-ioctl.h b/drivers/media/video/ivtv/ivtv-ioctl.h index 4e67f0ed1fc0..70188588b4f4 100644 --- a/drivers/media/video/ivtv/ivtv-ioctl.h +++ b/drivers/media/video/ivtv/ivtv-ioctl.h @@ -24,10 +24,13 @@ u16 ivtv_service2vbi(int type); void ivtv_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal); u16 ivtv_get_service_set(struct v4l2_sliced_vbi_format *fmt); -int ivtv_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg); -int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void *arg); void ivtv_set_osd_alpha(struct ivtv *itv); int ivtv_set_speed(struct ivtv *itv, int speed); +void ivtv_set_funcs(struct video_device *vdev); +int ivtv_s_std(struct file *file, void *fh, v4l2_std_id *std); +int ivtv_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf); +int ivtv_s_input(struct file *file, void *fh, unsigned int inp); +int ivtv_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, + unsigned long arg); #endif diff --git a/drivers/media/video/ivtv/ivtv-streams.c b/drivers/media/video/ivtv/ivtv-streams.c index c854285a4371..8e3addd45090 100644 --- a/drivers/media/video/ivtv/ivtv-streams.c +++ b/drivers/media/video/ivtv/ivtv-streams.c @@ -213,14 +213,15 @@ static int ivtv_prep_dev(struct ivtv *itv, int type) if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) { s->v4l2dev->type |= VID_TYPE_MPEG_DECODER; } - snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "ivtv%d %s", - itv->num, s->name); + snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "ivtv%d", + itv->num); s->v4l2dev->minor = minor; s->v4l2dev->dev = &itv->dev->dev; s->v4l2dev->fops = ivtv_stream_info[type].fops; s->v4l2dev->release = video_device_release; - + s->v4l2dev->tvnorms = V4L2_STD_ALL; + ivtv_set_funcs(s->v4l2dev); return 0; } diff --git a/drivers/media/video/ivtv/ivtvfb.c b/drivers/media/video/ivtv/ivtvfb.c index 73be154f7f05..14f93341f061 100644 --- a/drivers/media/video/ivtv/ivtvfb.c +++ b/drivers/media/video/ivtv/ivtvfb.c @@ -367,6 +367,87 @@ static int ivtvfb_prep_frame(struct ivtv *itv, int cmd, void __user *source, return ivtvfb_prep_dec_dma_to_device(itv, dest_offset, source, count); } +static ssize_t ivtvfb_write(struct fb_info *info, const char __user *buf, + size_t count, loff_t *ppos) +{ + unsigned long p = *ppos; + void *dst; + int err = 0; + unsigned long total_size; + struct ivtv *itv = (struct ivtv *) info->par; + unsigned long dma_offset = + IVTV_DECODER_OFFSET + itv->osd_info->video_rbase; + unsigned long dma_size; + u16 lead = 0, tail = 0; + + if (info->state != FBINFO_STATE_RUNNING) + return -EPERM; + + total_size = info->screen_size; + + if (total_size == 0) + total_size = info->fix.smem_len; + + if (p > total_size) + return -EFBIG; + + if (count > total_size) { + err = -EFBIG; + count = total_size; + } + + if (count + p > total_size) { + if (!err) + err = -ENOSPC; + + count = total_size - p; + } + + dst = (void __force *) (info->screen_base + p); + + if (info->fbops->fb_sync) + info->fbops->fb_sync(info); + + if (!access_ok(VERIFY_READ, buf, count)) { + IVTVFB_WARN("Invalid userspace pointer 0x%08lx\n", + (unsigned long)buf); + err = -EFAULT; + } + + if (!err) { + /* If transfer size > threshold and both src/dst + addresses are aligned, use DMA */ + if (count >= 4096 && ((u32)buf & 3) == ((u32)dst & 3)) { + /* Odd address = can't DMA. Align */ + if ((u32)dst & 3) { + lead = 4 - ((u32)dst & 3); + memcpy(dst, buf, lead); + buf += lead; + dst += lead; + } + /* DMA resolution is 32 bits */ + if ((count - lead) & 3) + tail = (count - lead) & 3; + /* DMA the data */ + dma_size = count - lead - tail; + err = ivtvfb_prep_dec_dma_to_device(itv, + p + lead + dma_offset, (void *)buf, dma_size); + dst += dma_size; + buf += dma_size; + /* Copy any leftover data */ + if (tail) + memcpy(dst, buf, tail); + } else { + memcpy(dst, buf, count); + } + } + + if (!err) + *ppos += count; + + return (err) ? err : count; +} + static int ivtvfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) { DEFINE_WAIT(wait); @@ -708,6 +789,9 @@ static int _ivtvfb_check_var(struct fb_var_screeninfo *var, struct ivtv *itv) else var->pixclock = pixclock; + itv->osd_rect.width = var->xres; + itv->osd_rect.height = var->yres; + IVTVFB_DEBUG_INFO("Display size: %dx%d (virtual %dx%d) @ %dbpp\n", var->xres, var->yres, var->xres_virtual, var->yres_virtual, @@ -824,6 +908,7 @@ static int ivtvfb_blank(int blank_mode, struct fb_info *info) static struct fb_ops ivtvfb_ops = { .owner = THIS_MODULE, + .fb_write = ivtvfb_write, .fb_check_var = ivtvfb_check_var, .fb_set_par = ivtvfb_set_par, .fb_setcolreg = ivtvfb_setcolreg, diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c index e7ccbc895d7a..2fb5854cf6f0 100644 --- a/drivers/media/video/meye.c +++ b/drivers/media/video/meye.c @@ -1253,7 +1253,7 @@ static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *c) return 0; } -static int vidioc_enum_fmt_cap(struct file *file, void *fh, +static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) { if (f->index > 1) @@ -1283,7 +1283,7 @@ static int vidioc_enum_fmt_cap(struct file *file, void *fh, return 0; } -static int vidioc_try_fmt_cap(struct file *file, void *fh, +static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) { if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) @@ -1316,7 +1316,8 @@ static int vidioc_try_fmt_cap(struct file *file, void *fh, return 0; } -static int vidioc_g_fmt_cap(struct file *file, void *fh, struct v4l2_format *f) +static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *f) { if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; @@ -1346,7 +1347,8 @@ static int vidioc_g_fmt_cap(struct file *file, void *fh, struct v4l2_format *f) return 0; } -static int vidioc_s_fmt_cap(struct file *file, void *fh, struct v4l2_format *f) +static int vidioc_s_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *f) { if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; @@ -1709,10 +1711,10 @@ static struct video_device meye_template = { .vidioc_queryctrl = vidioc_queryctrl, .vidioc_s_ctrl = vidioc_s_ctrl, .vidioc_g_ctrl = vidioc_g_ctrl, - .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, - .vidioc_try_fmt_cap = vidioc_try_fmt_cap, - .vidioc_g_fmt_cap = vidioc_g_fmt_cap, - .vidioc_s_fmt_cap = vidioc_s_fmt_cap, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, .vidioc_qbuf = vidioc_qbuf, diff --git a/drivers/media/video/pvrusb2/pvrusb2-audio.c b/drivers/media/video/pvrusb2/pvrusb2-audio.c index 8d859ccd48ec..cdedaa55f152 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-audio.c +++ b/drivers/media/video/pvrusb2/pvrusb2-audio.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-audio.h b/drivers/media/video/pvrusb2/pvrusb2-audio.h index 536339b68843..ac54eed3721b 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-audio.h +++ b/drivers/media/video/pvrusb2/pvrusb2-audio.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-context.c b/drivers/media/video/pvrusb2/pvrusb2-context.c index 73dcb1c57ae6..7c19ff72e6b3 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-context.c +++ b/drivers/media/video/pvrusb2/pvrusb2-context.c @@ -1,5 +1,4 @@ /* - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-context.h b/drivers/media/video/pvrusb2/pvrusb2-context.h index 745e270233c2..61801291c2af 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-context.h +++ b/drivers/media/video/pvrusb2/pvrusb2-context.h @@ -1,5 +1,4 @@ /* - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c index 91a42f2473a7..0764fbfffb73 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c +++ b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-ctrl.h b/drivers/media/video/pvrusb2/pvrusb2-ctrl.h index c1680053cd64..0371ae6e6e4e 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-ctrl.h +++ b/drivers/media/video/pvrusb2/pvrusb2-ctrl.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c index 29d50597c88a..895859ec495a 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c +++ b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.h b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.h index 54b2844e7a71..66abf77f51fd 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.h +++ b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-debug.h b/drivers/media/video/pvrusb2/pvrusb2-debug.h index 707d2d9635d7..be79249f8628 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-debug.h +++ b/drivers/media/video/pvrusb2/pvrusb2-debug.h @@ -1,5 +1,4 @@ /* - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-debugifc.c b/drivers/media/video/pvrusb2/pvrusb2-debugifc.c index b53121c78ff9..ca892fb78a5b 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-debugifc.c +++ b/drivers/media/video/pvrusb2/pvrusb2-debugifc.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-debugifc.h b/drivers/media/video/pvrusb2/pvrusb2-debugifc.h index 990b02d35d36..e24ff59f8605 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-debugifc.h +++ b/drivers/media/video/pvrusb2/pvrusb2-debugifc.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.c b/drivers/media/video/pvrusb2/pvrusb2-devattr.c index 5bf6d8fda1f9..5d036e7e3f07 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-devattr.c +++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2007 Mike Isely <isely@pobox.com> * @@ -182,7 +181,7 @@ static int pvr2_lgh06xf_attach(struct pvr2_dvb_adapter *adap) return 0; } -struct pvr2_dvb_props pvr2_onair_creator_fe_props = { +static struct pvr2_dvb_props pvr2_onair_creator_fe_props = { .frontend_attach = pvr2_lgdt3303_attach, .tuner_attach = pvr2_lgh06xf_attach, }; @@ -242,7 +241,7 @@ static int pvr2_fcv1236d_attach(struct pvr2_dvb_adapter *adap) return 0; } -struct pvr2_dvb_props pvr2_onair_usb2_fe_props = { +static struct pvr2_dvb_props pvr2_onair_usb2_fe_props = { .frontend_attach = pvr2_lgdt3302_attach, .tuner_attach = pvr2_fcv1236d_attach, }; @@ -315,7 +314,7 @@ static int pvr2_73xxx_tda18271_8295_attach(struct pvr2_dvb_adapter *adap) return 0; } -struct pvr2_dvb_props pvr2_73xxx_dvb_props = { +static struct pvr2_dvb_props pvr2_73xxx_dvb_props = { .frontend_attach = pvr2_tda10048_attach, .tuner_attach = pvr2_73xxx_tda18271_8295_attach, }; @@ -418,12 +417,12 @@ static int pvr2_tda18271_8295_attach(struct pvr2_dvb_adapter *adap) return 0; } -struct pvr2_dvb_props pvr2_750xx_dvb_props = { +static struct pvr2_dvb_props pvr2_750xx_dvb_props = { .frontend_attach = pvr2_s5h1409_attach, .tuner_attach = pvr2_tda18271_8295_attach, }; -struct pvr2_dvb_props pvr2_751xx_dvb_props = { +static struct pvr2_dvb_props pvr2_751xx_dvb_props = { .frontend_attach = pvr2_s5h1411_attach, .tuner_attach = pvr2_tda18271_8295_attach, }; diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.h b/drivers/media/video/pvrusb2/pvrusb2-devattr.h index d016f8b6c70b..e23ce1d2edd7 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-devattr.h +++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-eeprom.c b/drivers/media/video/pvrusb2/pvrusb2-eeprom.c index 5ef005947b04..299afa4fa969 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-eeprom.c +++ b/drivers/media/video/pvrusb2/pvrusb2-eeprom.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-eeprom.h b/drivers/media/video/pvrusb2/pvrusb2-eeprom.h index 84242975dea7..cca3216f94cc 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-eeprom.h +++ b/drivers/media/video/pvrusb2/pvrusb2-eeprom.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-encoder.c b/drivers/media/video/pvrusb2/pvrusb2-encoder.c index c46d367f7472..a1252d673b41 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-encoder.c +++ b/drivers/media/video/pvrusb2/pvrusb2-encoder.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-encoder.h b/drivers/media/video/pvrusb2/pvrusb2-encoder.h index 54caf2e3c428..232fefbcd1ac 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-encoder.h +++ b/drivers/media/video/pvrusb2/pvrusb2-encoder.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h b/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h index abaada31e66e..b58369e7f30b 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h +++ b/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2007 Michael Krufky <mkrufky@linuxtv.org> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h index a3fe251d6fd9..657f861593b3 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 0a868888f389..6517ba81bd4b 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * @@ -40,6 +39,23 @@ #define TV_MIN_FREQ 55250000L #define TV_MAX_FREQ 850000000L +/* This defines a minimum interval that the decoder must remain quiet + before we are allowed to start it running. */ +#define TIME_MSEC_DECODER_WAIT 50 + +/* This defines a minimum interval that the encoder must remain quiet + before we are allowed to configure it. I had this originally set to + 50msec, but Martin Dauskardt <martin.dauskardt@gmx.de> reports that + things work better when it's set to 100msec. */ +#define TIME_MSEC_ENCODER_WAIT 100 + +/* This defines the minimum interval that the encoder must successfully run + before we consider that the encoder has run at least once since its + firmware has been loaded. This measurement is in important for cases + where we can't do something until we know that the encoder has been run + at least once. */ +#define TIME_MSEC_ENCODER_OK 250 + static struct pvr2_hdw *unit_pointers[PVR_NUM] = {[ 0 ... PVR_NUM-1 ] = NULL}; static DEFINE_MUTEX(pvr2_unit_mtx); @@ -67,6 +83,16 @@ MODULE_PARM_DESC(video_std,"specify initial video standard"); module_param_array(tolerance, int, NULL, 0444); MODULE_PARM_DESC(tolerance,"specify stream error tolerance"); +/* US Broadcast channel 7 (175.25 MHz) */ +static int default_tv_freq = 175250000L; +/* 104.3 MHz, a usable FM station for my area */ +static int default_radio_freq = 104300000L; + +module_param_named(tv_freq, default_tv_freq, int, 0444); +MODULE_PARM_DESC(tv_freq, "specify initial television frequency"); +module_param_named(radio_freq, default_radio_freq, int, 0444); +MODULE_PARM_DESC(radio_freq, "specify initial radio frequency"); + #define PVR2_CTL_WRITE_ENDPOINT 0x01 #define PVR2_CTL_READ_ENDPOINT 0x81 @@ -1701,10 +1727,8 @@ static void pvr2_hdw_setup_low(struct pvr2_hdw *hdw) are, but I set them to something usable in the Chicago area just to make driver testing a little easier. */ - /* US Broadcast channel 7 (175.25 MHz) */ - hdw->freqValTelevision = 175250000L; - /* 104.3 MHz, a usable FM station for my area */ - hdw->freqValRadio = 104300000L; + hdw->freqValTelevision = default_tv_freq; + hdw->freqValRadio = default_radio_freq; // Do not use pvr2_reset_ctl_endpoints() here. It is not // thread-safe against the normal pvr2_send_request() mechanism. @@ -1989,7 +2013,8 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, case V4L2_CTRL_TYPE_MENU: ciptr->type = pvr2_ctl_enum; ciptr->def.type_enum.value_names = - cx2341x_ctrl_get_menu(ciptr->v4l_id); + cx2341x_ctrl_get_menu(&hdw->enc_ctl_state, + ciptr->v4l_id); for (cnt1 = 0; ciptr->def.type_enum.value_names[cnt1] != NULL; cnt1++) { } @@ -3421,7 +3446,7 @@ static void pvr2_hdw_cmd_modeswitch(struct pvr2_hdw *hdw,int digitalFl) } -void pvr2_led_ctrl_hauppauge(struct pvr2_hdw *hdw, int onoff) +static void pvr2_led_ctrl_hauppauge(struct pvr2_hdw *hdw, int onoff) { /* change some GPIO data * @@ -3601,7 +3626,9 @@ static int state_eval_encoder_config(struct pvr2_hdw *hdw) the encoder. */ if (!hdw->state_encoder_waitok) { hdw->encoder_wait_timer.expires = - jiffies + (HZ*50/1000); + jiffies + + (HZ * TIME_MSEC_ENCODER_WAIT + / 1000); add_timer(&hdw->encoder_wait_timer); } } @@ -3725,7 +3752,7 @@ static int state_eval_encoder_run(struct pvr2_hdw *hdw) hdw->state_encoder_run = !0; if (!hdw->state_encoder_runok) { hdw->encoder_run_timer.expires = - jiffies + (HZ*250/1000); + jiffies + (HZ * TIME_MSEC_ENCODER_OK / 1000); add_timer(&hdw->encoder_run_timer); } } @@ -3800,7 +3827,9 @@ static int state_eval_decoder_run(struct pvr2_hdw *hdw) but before we did the pending check. */ if (!hdw->state_decoder_quiescent) { hdw->quiescent_timer.expires = - jiffies + (HZ*50/1000); + jiffies + + (HZ * TIME_MSEC_DECODER_WAIT + / 1000); add_timer(&hdw->quiescent_timer); } } diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/drivers/media/video/pvrusb2/pvrusb2-hdw.h index 20295e0c1995..c04956d304a7 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.h +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c index 49773764383b..ccdb429fc7af 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c index c650e02ccd00..55f04a0b2047 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h index c838df6167f9..7fa38683b3b1 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c index 793c89a8d672..9d3c18b24744 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.h b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.h index bd0807b905bb..6ef7a1c0e935 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.h +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-io.c b/drivers/media/video/pvrusb2/pvrusb2-io.c index 7aff8b720064..20b6ae0bb40d 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-io.c +++ b/drivers/media/video/pvrusb2/pvrusb2-io.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-io.h b/drivers/media/video/pvrusb2/pvrusb2-io.h index 42fcf8281a87..afb7e87c0394 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-io.h +++ b/drivers/media/video/pvrusb2/pvrusb2-io.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-ioread.c b/drivers/media/video/pvrusb2/pvrusb2-ioread.c index c572212c9f15..05a1376405e7 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-ioread.c +++ b/drivers/media/video/pvrusb2/pvrusb2-ioread.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-ioread.h b/drivers/media/video/pvrusb2/pvrusb2-ioread.h index 1d362f833588..100e0780e1aa 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-ioread.h +++ b/drivers/media/video/pvrusb2/pvrusb2-ioread.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-main.c b/drivers/media/video/pvrusb2/pvrusb2-main.c index 332aced8a5a1..ad0d98c2ebb4 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-main.c +++ b/drivers/media/video/pvrusb2/pvrusb2-main.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-std.c b/drivers/media/video/pvrusb2/pvrusb2-std.c index fdc5a2b49ca8..ca9f83a85ca5 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-std.c +++ b/drivers/media/video/pvrusb2/pvrusb2-std.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-std.h b/drivers/media/video/pvrusb2/pvrusb2-std.h index 07c399375341..a35c53d0b320 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-std.h +++ b/drivers/media/video/pvrusb2/pvrusb2-std.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c index 0ff7a836a8a2..46a8c39ba030 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c +++ b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * @@ -71,6 +70,7 @@ struct pvr2_sysfs_ctl_item { struct device_attribute attr_val; struct device_attribute attr_custom; struct pvr2_ctrl *cptr; + int ctl_id; struct pvr2_sysfs *chptr; struct pvr2_sysfs_ctl_item *item_next; struct attribute *attr_gen[7]; @@ -83,38 +83,29 @@ struct pvr2_sysfs_class { struct class class; }; -static ssize_t show_name(int id,struct device *class_dev,char *buf) +static ssize_t show_name(struct device *class_dev, + struct device_attribute *attr, + char *buf) { - struct pvr2_ctrl *cptr; - struct pvr2_sysfs *sfp; + struct pvr2_sysfs_ctl_item *cip; const char *name; - - sfp = (struct pvr2_sysfs *)class_dev->driver_data; - if (!sfp) return -EINVAL; - cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id); - if (!cptr) return -EINVAL; - - name = pvr2_ctrl_get_desc(cptr); - pvr2_sysfs_trace("pvr2_sysfs(%p) show_name(cid=%d) is %s",sfp,id,name); - + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_name); + name = pvr2_ctrl_get_desc(cip->cptr); + pvr2_sysfs_trace("pvr2_sysfs(%p) show_name(cid=%d) is %s", + cip->chptr, cip->ctl_id, name); if (!name) return -EINVAL; - - return scnprintf(buf,PAGE_SIZE,"%s\n",name); + return scnprintf(buf, PAGE_SIZE, "%s\n", name); } -static ssize_t show_type(int id,struct device *class_dev,char *buf) +static ssize_t show_type(struct device *class_dev, + struct device_attribute *attr, + char *buf) { - struct pvr2_ctrl *cptr; - struct pvr2_sysfs *sfp; + struct pvr2_sysfs_ctl_item *cip; const char *name; enum pvr2_ctl_type tp; - - sfp = (struct pvr2_sysfs *)class_dev->driver_data; - if (!sfp) return -EINVAL; - cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id); - if (!cptr) return -EINVAL; - - tp = pvr2_ctrl_get_type(cptr); + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_type); + tp = pvr2_ctrl_get_type(cip->cptr); switch (tp) { case pvr2_ctl_int: name = "integer"; break; case pvr2_ctl_enum: name = "enum"; break; @@ -122,403 +113,178 @@ static ssize_t show_type(int id,struct device *class_dev,char *buf) case pvr2_ctl_bool: name = "boolean"; break; default: name = "?"; break; } - pvr2_sysfs_trace("pvr2_sysfs(%p) show_type(cid=%d) is %s",sfp,id,name); - + pvr2_sysfs_trace("pvr2_sysfs(%p) show_type(cid=%d) is %s", + cip->chptr, cip->ctl_id, name); if (!name) return -EINVAL; - - return scnprintf(buf,PAGE_SIZE,"%s\n",name); + return scnprintf(buf, PAGE_SIZE, "%s\n", name); } -static ssize_t show_min(int id,struct device *class_dev,char *buf) +static ssize_t show_min(struct device *class_dev, + struct device_attribute *attr, + char *buf) { - struct pvr2_ctrl *cptr; - struct pvr2_sysfs *sfp; + struct pvr2_sysfs_ctl_item *cip; long val; - - sfp = (struct pvr2_sysfs *)class_dev->driver_data; - if (!sfp) return -EINVAL; - cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id); - if (!cptr) return -EINVAL; - val = pvr2_ctrl_get_min(cptr); - - pvr2_sysfs_trace("pvr2_sysfs(%p) show_min(cid=%d) is %ld",sfp,id,val); - - return scnprintf(buf,PAGE_SIZE,"%ld\n",val); + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_min); + val = pvr2_ctrl_get_min(cip->cptr); + pvr2_sysfs_trace("pvr2_sysfs(%p) show_min(cid=%d) is %ld", + cip->chptr, cip->ctl_id, val); + return scnprintf(buf, PAGE_SIZE, "%ld\n", val); } -static ssize_t show_max(int id,struct device *class_dev,char *buf) +static ssize_t show_max(struct device *class_dev, + struct device_attribute *attr, + char *buf) { - struct pvr2_ctrl *cptr; - struct pvr2_sysfs *sfp; + struct pvr2_sysfs_ctl_item *cip; long val; - - sfp = (struct pvr2_sysfs *)class_dev->driver_data; - if (!sfp) return -EINVAL; - cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id); - if (!cptr) return -EINVAL; - val = pvr2_ctrl_get_max(cptr); - - pvr2_sysfs_trace("pvr2_sysfs(%p) show_max(cid=%d) is %ld",sfp,id,val); - - return scnprintf(buf,PAGE_SIZE,"%ld\n",val); + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_max); + val = pvr2_ctrl_get_max(cip->cptr); + pvr2_sysfs_trace("pvr2_sysfs(%p) show_max(cid=%d) is %ld", + cip->chptr, cip->ctl_id, val); + return scnprintf(buf, PAGE_SIZE, "%ld\n", val); } -static ssize_t show_val_norm(int id,struct device *class_dev,char *buf) +static ssize_t show_val_norm(struct device *class_dev, + struct device_attribute *attr, + char *buf) { - struct pvr2_ctrl *cptr; - struct pvr2_sysfs *sfp; - int val,ret; + struct pvr2_sysfs_ctl_item *cip; + int val; + int ret; unsigned int cnt = 0; - - sfp = (struct pvr2_sysfs *)class_dev->driver_data; - if (!sfp) return -EINVAL; - cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id); - if (!cptr) return -EINVAL; - - ret = pvr2_ctrl_get_value(cptr,&val); + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_val); + ret = pvr2_ctrl_get_value(cip->cptr, &val); if (ret < 0) return ret; - - ret = pvr2_ctrl_value_to_sym(cptr,~0,val, - buf,PAGE_SIZE-1,&cnt); - + ret = pvr2_ctrl_value_to_sym(cip->cptr, ~0, val, + buf, PAGE_SIZE - 1, &cnt); pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_norm(cid=%d) is %.*s (%d)", - sfp,id,cnt,buf,val); + cip->chptr, cip->ctl_id, cnt, buf, val); buf[cnt] = '\n'; return cnt+1; } -static ssize_t show_val_custom(int id,struct device *class_dev,char *buf) +static ssize_t show_val_custom(struct device *class_dev, + struct device_attribute *attr, + char *buf) { - struct pvr2_ctrl *cptr; - struct pvr2_sysfs *sfp; - int val,ret; + struct pvr2_sysfs_ctl_item *cip; + int val; + int ret; unsigned int cnt = 0; - - sfp = (struct pvr2_sysfs *)class_dev->driver_data; - if (!sfp) return -EINVAL; - cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id); - if (!cptr) return -EINVAL; - - ret = pvr2_ctrl_get_value(cptr,&val); + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_custom); + ret = pvr2_ctrl_get_value(cip->cptr, &val); if (ret < 0) return ret; - - ret = pvr2_ctrl_custom_value_to_sym(cptr,~0,val, - buf,PAGE_SIZE-1,&cnt); - + ret = pvr2_ctrl_custom_value_to_sym(cip->cptr, ~0, val, + buf, PAGE_SIZE - 1, &cnt); pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_custom(cid=%d) is %.*s (%d)", - sfp,id,cnt,buf,val); + cip->chptr, cip->ctl_id, cnt, buf, val); buf[cnt] = '\n'; return cnt+1; } -static ssize_t show_enum(int id,struct device *class_dev,char *buf) +static ssize_t show_enum(struct device *class_dev, + struct device_attribute *attr, + char *buf) { - struct pvr2_ctrl *cptr; - struct pvr2_sysfs *sfp; + struct pvr2_sysfs_ctl_item *cip; long val; - unsigned int bcnt,ccnt,ecnt; - - sfp = (struct pvr2_sysfs *)class_dev->driver_data; - if (!sfp) return -EINVAL; - cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id); - if (!cptr) return -EINVAL; - ecnt = pvr2_ctrl_get_cnt(cptr); + unsigned int bcnt, ccnt, ecnt; + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_enum); + ecnt = pvr2_ctrl_get_cnt(cip->cptr); bcnt = 0; for (val = 0; val < ecnt; val++) { - pvr2_ctrl_get_valname(cptr,val,buf+bcnt,PAGE_SIZE-bcnt,&ccnt); + pvr2_ctrl_get_valname(cip->cptr, val, buf + bcnt, + PAGE_SIZE - bcnt, &ccnt); if (!ccnt) continue; bcnt += ccnt; if (bcnt >= PAGE_SIZE) break; buf[bcnt] = '\n'; bcnt++; } - pvr2_sysfs_trace("pvr2_sysfs(%p) show_enum(cid=%d)",sfp,id); + pvr2_sysfs_trace("pvr2_sysfs(%p) show_enum(cid=%d)", + cip->chptr, cip->ctl_id); return bcnt; } -static ssize_t show_bits(int id,struct device *class_dev,char *buf) +static ssize_t show_bits(struct device *class_dev, + struct device_attribute *attr, + char *buf) { - struct pvr2_ctrl *cptr; - struct pvr2_sysfs *sfp; - int valid_bits,msk; - unsigned int bcnt,ccnt; - - sfp = (struct pvr2_sysfs *)class_dev->driver_data; - if (!sfp) return -EINVAL; - cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id); - if (!cptr) return -EINVAL; - valid_bits = pvr2_ctrl_get_mask(cptr); + struct pvr2_sysfs_ctl_item *cip; + int valid_bits, msk; + unsigned int bcnt, ccnt; + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_bits); + valid_bits = pvr2_ctrl_get_mask(cip->cptr); bcnt = 0; for (msk = 1; valid_bits; msk <<= 1) { if (!(msk & valid_bits)) continue; valid_bits &= ~msk; - pvr2_ctrl_get_valname(cptr,msk,buf+bcnt,PAGE_SIZE-bcnt,&ccnt); + pvr2_ctrl_get_valname(cip->cptr, msk, buf + bcnt, + PAGE_SIZE - bcnt, &ccnt); bcnt += ccnt; if (bcnt >= PAGE_SIZE) break; buf[bcnt] = '\n'; bcnt++; } - pvr2_sysfs_trace("pvr2_sysfs(%p) show_bits(cid=%d)",sfp,id); + pvr2_sysfs_trace("pvr2_sysfs(%p) show_bits(cid=%d)", + cip->chptr, cip->ctl_id); return bcnt; } -static int store_val_any(int id,int customfl,struct pvr2_sysfs *sfp, +static int store_val_any(struct pvr2_sysfs_ctl_item *cip, int customfl, const char *buf,unsigned int count) { - struct pvr2_ctrl *cptr; int ret; int mask,val; - - cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id); if (customfl) { - ret = pvr2_ctrl_custom_sym_to_value(cptr,buf,count,&mask,&val); + ret = pvr2_ctrl_custom_sym_to_value(cip->cptr, buf, count, + &mask, &val); } else { - ret = pvr2_ctrl_sym_to_value(cptr,buf,count,&mask,&val); + ret = pvr2_ctrl_sym_to_value(cip->cptr, buf, count, + &mask, &val); } if (ret < 0) return ret; - ret = pvr2_ctrl_set_mask_value(cptr,mask,val); - pvr2_hdw_commit_ctl(sfp->channel.hdw); + ret = pvr2_ctrl_set_mask_value(cip->cptr, mask, val); + pvr2_hdw_commit_ctl(cip->chptr->channel.hdw); return ret; } -static ssize_t store_val_norm(int id,struct device *class_dev, - const char *buf,size_t count) +static ssize_t store_val_norm(struct device *class_dev, + struct device_attribute *attr, + const char *buf, size_t count) { - struct pvr2_sysfs *sfp; + struct pvr2_sysfs_ctl_item *cip; int ret; - sfp = (struct pvr2_sysfs *)class_dev->driver_data; + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_val); pvr2_sysfs_trace("pvr2_sysfs(%p) store_val_norm(cid=%d) \"%.*s\"", - sfp,id,(int)count,buf); - ret = store_val_any(id,0,sfp,buf,count); + cip->chptr, cip->ctl_id, (int)count, buf); + ret = store_val_any(cip, 0, buf, count); if (!ret) ret = count; return ret; } -static ssize_t store_val_custom(int id,struct device *class_dev, - const char *buf,size_t count) +static ssize_t store_val_custom(struct device *class_dev, + struct device_attribute *attr, + const char *buf, size_t count) { - struct pvr2_sysfs *sfp; + struct pvr2_sysfs_ctl_item *cip; int ret; - sfp = (struct pvr2_sysfs *)class_dev->driver_data; + cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_custom); pvr2_sysfs_trace("pvr2_sysfs(%p) store_val_custom(cid=%d) \"%.*s\"", - sfp,id,(int)count,buf); - ret = store_val_any(id,1,sfp,buf,count); + cip->chptr, cip->ctl_id, (int)count, buf); + ret = store_val_any(cip, 1, buf, count); if (!ret) ret = count; return ret; } -/* - Mike Isely <isely@pobox.com> 30-April-2005 - - This next batch of horrible preprocessor hackery is needed because the - kernel's device_attribute mechanism fails to pass the actual - attribute through to the show / store functions, which means we have no - way to package up any attribute-specific parameters, like for example the - control id. So we work around this brain-damage by encoding the control - id into the show / store functions themselves and pick the function based - on the control id we're setting up. These macros try to ease the pain. - Yuck. -*/ - -#define CREATE_SHOW_INSTANCE(sf_name,ctl_id) \ -static ssize_t sf_name##_##ctl_id(struct device *class_dev, \ -struct device_attribute *attr, char *buf) \ -{ return sf_name(ctl_id,class_dev,buf); } - -#define CREATE_STORE_INSTANCE(sf_name,ctl_id) \ -static ssize_t sf_name##_##ctl_id(struct device *class_dev, \ -struct device_attribute *attr, const char *buf, size_t count) \ -{ return sf_name(ctl_id,class_dev,buf,count); } - -#define CREATE_BATCH(ctl_id) \ -CREATE_SHOW_INSTANCE(show_name,ctl_id) \ -CREATE_SHOW_INSTANCE(show_type,ctl_id) \ -CREATE_SHOW_INSTANCE(show_min,ctl_id) \ -CREATE_SHOW_INSTANCE(show_max,ctl_id) \ -CREATE_SHOW_INSTANCE(show_val_norm,ctl_id) \ -CREATE_SHOW_INSTANCE(show_val_custom,ctl_id) \ -CREATE_SHOW_INSTANCE(show_enum,ctl_id) \ -CREATE_SHOW_INSTANCE(show_bits,ctl_id) \ -CREATE_STORE_INSTANCE(store_val_norm,ctl_id) \ -CREATE_STORE_INSTANCE(store_val_custom,ctl_id) \ - -CREATE_BATCH(0) -CREATE_BATCH(1) -CREATE_BATCH(2) -CREATE_BATCH(3) -CREATE_BATCH(4) -CREATE_BATCH(5) -CREATE_BATCH(6) -CREATE_BATCH(7) -CREATE_BATCH(8) -CREATE_BATCH(9) -CREATE_BATCH(10) -CREATE_BATCH(11) -CREATE_BATCH(12) -CREATE_BATCH(13) -CREATE_BATCH(14) -CREATE_BATCH(15) -CREATE_BATCH(16) -CREATE_BATCH(17) -CREATE_BATCH(18) -CREATE_BATCH(19) -CREATE_BATCH(20) -CREATE_BATCH(21) -CREATE_BATCH(22) -CREATE_BATCH(23) -CREATE_BATCH(24) -CREATE_BATCH(25) -CREATE_BATCH(26) -CREATE_BATCH(27) -CREATE_BATCH(28) -CREATE_BATCH(29) -CREATE_BATCH(30) -CREATE_BATCH(31) -CREATE_BATCH(32) -CREATE_BATCH(33) -CREATE_BATCH(34) -CREATE_BATCH(35) -CREATE_BATCH(36) -CREATE_BATCH(37) -CREATE_BATCH(38) -CREATE_BATCH(39) -CREATE_BATCH(40) -CREATE_BATCH(41) -CREATE_BATCH(42) -CREATE_BATCH(43) -CREATE_BATCH(44) -CREATE_BATCH(45) -CREATE_BATCH(46) -CREATE_BATCH(47) -CREATE_BATCH(48) -CREATE_BATCH(49) -CREATE_BATCH(50) -CREATE_BATCH(51) -CREATE_BATCH(52) -CREATE_BATCH(53) -CREATE_BATCH(54) -CREATE_BATCH(55) -CREATE_BATCH(56) -CREATE_BATCH(57) -CREATE_BATCH(58) -CREATE_BATCH(59) - -struct pvr2_sysfs_func_set { - ssize_t (*show_name)(struct device *, - struct device_attribute *attr, char *); - ssize_t (*show_type)(struct device *, - struct device_attribute *attr, char *); - ssize_t (*show_min)(struct device *, - struct device_attribute *attr, char *); - ssize_t (*show_max)(struct device *, - struct device_attribute *attr, char *); - ssize_t (*show_enum)(struct device *, - struct device_attribute *attr, char *); - ssize_t (*show_bits)(struct device *, - struct device_attribute *attr, char *); - ssize_t (*show_val_norm)(struct device *, - struct device_attribute *attr, char *); - ssize_t (*store_val_norm)(struct device *, - struct device_attribute *attr, - const char *,size_t); - ssize_t (*show_val_custom)(struct device *, - struct device_attribute *attr, char *); - ssize_t (*store_val_custom)(struct device *, - struct device_attribute *attr, - const char *,size_t); -}; - -#define INIT_BATCH(ctl_id) \ -[ctl_id] = { \ - .show_name = show_name_##ctl_id, \ - .show_type = show_type_##ctl_id, \ - .show_min = show_min_##ctl_id, \ - .show_max = show_max_##ctl_id, \ - .show_enum = show_enum_##ctl_id, \ - .show_bits = show_bits_##ctl_id, \ - .show_val_norm = show_val_norm_##ctl_id, \ - .store_val_norm = store_val_norm_##ctl_id, \ - .show_val_custom = show_val_custom_##ctl_id, \ - .store_val_custom = store_val_custom_##ctl_id, \ -} \ - -static struct pvr2_sysfs_func_set funcs[] = { - INIT_BATCH(0), - INIT_BATCH(1), - INIT_BATCH(2), - INIT_BATCH(3), - INIT_BATCH(4), - INIT_BATCH(5), - INIT_BATCH(6), - INIT_BATCH(7), - INIT_BATCH(8), - INIT_BATCH(9), - INIT_BATCH(10), - INIT_BATCH(11), - INIT_BATCH(12), - INIT_BATCH(13), - INIT_BATCH(14), - INIT_BATCH(15), - INIT_BATCH(16), - INIT_BATCH(17), - INIT_BATCH(18), - INIT_BATCH(19), - INIT_BATCH(20), - INIT_BATCH(21), - INIT_BATCH(22), - INIT_BATCH(23), - INIT_BATCH(24), - INIT_BATCH(25), - INIT_BATCH(26), - INIT_BATCH(27), - INIT_BATCH(28), - INIT_BATCH(29), - INIT_BATCH(30), - INIT_BATCH(31), - INIT_BATCH(32), - INIT_BATCH(33), - INIT_BATCH(34), - INIT_BATCH(35), - INIT_BATCH(36), - INIT_BATCH(37), - INIT_BATCH(38), - INIT_BATCH(39), - INIT_BATCH(40), - INIT_BATCH(41), - INIT_BATCH(42), - INIT_BATCH(43), - INIT_BATCH(44), - INIT_BATCH(45), - INIT_BATCH(46), - INIT_BATCH(47), - INIT_BATCH(48), - INIT_BATCH(49), - INIT_BATCH(50), - INIT_BATCH(51), - INIT_BATCH(52), - INIT_BATCH(53), - INIT_BATCH(54), - INIT_BATCH(55), - INIT_BATCH(56), - INIT_BATCH(57), - INIT_BATCH(58), - INIT_BATCH(59), -}; - - static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id) { struct pvr2_sysfs_ctl_item *cip; - struct pvr2_sysfs_func_set *fp; struct pvr2_ctrl *cptr; unsigned int cnt,acnt; int ret; - if ((ctl_id < 0) || (ctl_id >= ARRAY_SIZE(funcs))) { - return; - } - - fp = funcs + ctl_id; cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,ctl_id); if (!cptr) return; @@ -527,6 +293,7 @@ static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id) pvr2_sysfs_trace("Creating pvr2_sysfs_ctl_item id=%p",cip); cip->cptr = cptr; + cip->ctl_id = ctl_id; cip->chptr = sfp; cip->item_next = NULL; @@ -539,19 +306,19 @@ static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id) cip->attr_name.attr.name = "name"; cip->attr_name.attr.mode = S_IRUGO; - cip->attr_name.show = fp->show_name; + cip->attr_name.show = show_name; cip->attr_type.attr.name = "type"; cip->attr_type.attr.mode = S_IRUGO; - cip->attr_type.show = fp->show_type; + cip->attr_type.show = show_type; cip->attr_min.attr.name = "min_val"; cip->attr_min.attr.mode = S_IRUGO; - cip->attr_min.show = fp->show_min; + cip->attr_min.show = show_min; cip->attr_max.attr.name = "max_val"; cip->attr_max.attr.mode = S_IRUGO; - cip->attr_max.show = fp->show_max; + cip->attr_max.show = show_max; cip->attr_val.attr.name = "cur_val"; cip->attr_val.attr.mode = S_IRUGO; @@ -561,11 +328,11 @@ static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id) cip->attr_enum.attr.name = "enum_val"; cip->attr_enum.attr.mode = S_IRUGO; - cip->attr_enum.show = fp->show_enum; + cip->attr_enum.show = show_enum; cip->attr_bits.attr.name = "bit_val"; cip->attr_bits.attr.mode = S_IRUGO; - cip->attr_bits.show = fp->show_bits; + cip->attr_bits.show = show_bits; if (pvr2_ctrl_is_writable(cptr)) { cip->attr_val.attr.mode |= S_IWUSR|S_IWGRP; @@ -576,12 +343,12 @@ static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id) cip->attr_gen[acnt++] = &cip->attr_name.attr; cip->attr_gen[acnt++] = &cip->attr_type.attr; cip->attr_gen[acnt++] = &cip->attr_val.attr; - cip->attr_val.show = fp->show_val_norm; - cip->attr_val.store = fp->store_val_norm; + cip->attr_val.show = show_val_norm; + cip->attr_val.store = store_val_norm; if (pvr2_ctrl_has_custom_symbols(cptr)) { cip->attr_gen[acnt++] = &cip->attr_custom.attr; - cip->attr_custom.show = fp->show_val_custom; - cip->attr_custom.store = fp->store_val_custom; + cip->attr_custom.show = show_val_custom; + cip->attr_custom.store = store_val_custom; } switch (pvr2_ctrl_get_type(cptr)) { case pvr2_ctl_enum: diff --git a/drivers/media/video/pvrusb2/pvrusb2-sysfs.h b/drivers/media/video/pvrusb2/pvrusb2-sysfs.h index ff9373b47f8f..6d875bfe7991 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-sysfs.h +++ b/drivers/media/video/pvrusb2/pvrusb2-sysfs.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-tuner.c b/drivers/media/video/pvrusb2/pvrusb2-tuner.c index 05e65ce2e3a9..07775d1aad4e 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-tuner.c +++ b/drivers/media/video/pvrusb2/pvrusb2-tuner.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-tuner.h b/drivers/media/video/pvrusb2/pvrusb2-tuner.h index 556f12aa9160..ef4afaf37b0a 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-tuner.h +++ b/drivers/media/video/pvrusb2/pvrusb2-tuner.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-util.h b/drivers/media/video/pvrusb2/pvrusb2-util.h index e53aee416f56..92b75544ee2e 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-util.h +++ b/drivers/media/video/pvrusb2/pvrusb2-util.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index e9b5d4e91327..0d72dc470fef 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.h b/drivers/media/video/pvrusb2/pvrusb2-v4l2.h index 9a995e2d2256..34c011a7b107 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.h +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * diff --git a/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c b/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c index 2433a3160041..4059648c7056 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c +++ b/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-video-v4l.h b/drivers/media/video/pvrusb2/pvrusb2-video-v4l.h index 2b917fda02e4..4ff5b892b303 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-video-v4l.h +++ b/drivers/media/video/pvrusb2/pvrusb2-video-v4l.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-wm8775.c b/drivers/media/video/pvrusb2/pvrusb2-wm8775.c index 66b4d36ef765..f6fcf0ac6118 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-wm8775.c +++ b/drivers/media/video/pvrusb2/pvrusb2-wm8775.c @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2-wm8775.h b/drivers/media/video/pvrusb2/pvrusb2-wm8775.h index 8aaeff4e1e20..807090961255 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-wm8775.h +++ b/drivers/media/video/pvrusb2/pvrusb2-wm8775.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pvrusb2/pvrusb2.h b/drivers/media/video/pvrusb2/pvrusb2.h index 1a9a4baf12b8..240de9b35661 100644 --- a/drivers/media/video/pvrusb2/pvrusb2.h +++ b/drivers/media/video/pvrusb2/pvrusb2.h @@ -1,6 +1,5 @@ /* * - * $Id$ * * Copyright (C) 2005 Mike Isely <isely@pobox.com> * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c index 7cc8e9b19fb7..5ec5bb9a94d2 100644 --- a/drivers/media/video/pxa_camera.c +++ b/drivers/media/video/pxa_camera.c @@ -1019,12 +1019,12 @@ static int pxa_camera_probe(struct platform_device *pdev) struct pxa_camera_dev *pcdev; struct resource *res; void __iomem *base; - unsigned int irq; + int irq; int err = 0; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); - if (!res || !irq) { + if (!res || irq < 0) { err = -ENODEV; goto exit; } diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c index ba3082422a01..f118de6e3672 100644 --- a/drivers/media/video/saa7134/saa7134-alsa.c +++ b/drivers/media/video/saa7134/saa7134-alsa.c @@ -613,9 +613,15 @@ static int snd_card_saa7134_capture_open(struct snd_pcm_substream * substream) struct snd_pcm_runtime *runtime = substream->runtime; snd_card_saa7134_pcm_t *pcm; snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); - struct saa7134_dev *dev = saa7134->dev; + struct saa7134_dev *dev; int amux, err; + if (!saa7134) { + printk(KERN_ERR "BUG: saa7134 can't find device struct." + " Can't proceed with open\n"); + return -ENODEV; + } + dev = saa7134->dev; mutex_lock(&dev->dmasound.lock); dev->dmasound.read_count = 0; diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c index b111903aa322..ac77826547a6 100644 --- a/drivers/media/video/saa7134/saa7134-cards.c +++ b/drivers/media/video/saa7134/saa7134-cards.c @@ -3940,32 +3940,111 @@ struct saa7134_board saa7134_boards[] = { [SAA7134_BOARD_BEHOLD_M6] = { /* Igor Kuznetsov <igk@igk.ru> */ /* Andrey Melnikoff <temnota@kmv.ru> */ - .name = "Beholder BeholdTV M6 / BeholdTV M6 Extra", + /* Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com> */ + .name = "Beholder BeholdTV M6", .audio_clock = 0x00187de7, .tuner_type = TUNER_PHILIPS_FM1216ME_MK3, .radio_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, .tda9887_conf = TDA9887_PRESENT, - .inputs = {{ + .inputs = { { .name = name_tv, .vmux = 3, .amux = TV, .tv = 1, - },{ + }, { .name = name_comp1, .vmux = 1, .amux = LINE1, - },{ + }, { .name = name_svideo, .vmux = 8, .amux = LINE1, - }}, + } }, .radio = { .name = name_radio, .amux = LINE2, }, .mpeg = SAA7134_MPEG_EMPRESS, + .video_out = CCIR656, + .vid_port_opts = (SET_T_CODE_POLARITY_NON_INVERTED | + SET_CLOCK_NOT_DELAYED | + SET_CLOCK_INVERTED | + SET_VSYNC_OFF), + }, + [SAA7134_BOARD_BEHOLD_M63] = { + /* Igor Kuznetsov <igk@igk.ru> */ + /* Andrey Melnikoff <temnota@kmv.ru> */ + /* Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com> */ + .name = "Beholder BeholdTV M63", + .audio_clock = 0x00187de7, + .tuner_type = TUNER_PHILIPS_FM1216ME_MK3, + .radio_type = UNSET, + .tuner_addr = ADDR_UNSET, + .radio_addr = ADDR_UNSET, + .tda9887_conf = TDA9887_PRESENT, + .inputs = { { + .name = name_tv, + .vmux = 3, + .amux = TV, + .tv = 1, + }, { + .name = name_comp1, + .vmux = 1, + .amux = LINE1, + }, { + .name = name_svideo, + .vmux = 8, + .amux = LINE1, + } }, + .radio = { + .name = name_radio, + .amux = LINE2, + }, + .mpeg = SAA7134_MPEG_EMPRESS, + .video_out = CCIR656, + .vid_port_opts = (SET_T_CODE_POLARITY_NON_INVERTED | + SET_CLOCK_NOT_DELAYED | + SET_CLOCK_INVERTED | + SET_VSYNC_OFF), + }, + [SAA7134_BOARD_BEHOLD_M6_EXTRA] = { + /* Igor Kuznetsov <igk@igk.ru> */ + /* Andrey Melnikoff <temnota@kmv.ru> */ + /* Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com> */ + .name = "Beholder BeholdTV M6 Extra", + .audio_clock = 0x00187de7, + /* FIXME: Must be PHILIPS_FM1216ME_MK5*/ + .tuner_type = TUNER_PHILIPS_FM1216ME_MK3, + .radio_type = UNSET, + .tuner_addr = ADDR_UNSET, + .radio_addr = ADDR_UNSET, + .tda9887_conf = TDA9887_PRESENT, + .inputs = { { + .name = name_tv, + .vmux = 3, + .amux = TV, + .tv = 1, + }, { + .name = name_comp1, + .vmux = 1, + .amux = LINE1, + }, { + .name = name_svideo, + .vmux = 8, + .amux = LINE1, + } }, + .radio = { + .name = name_radio, + .amux = LINE2, + }, + .mpeg = SAA7134_MPEG_EMPRESS, + .video_out = CCIR656, + .vid_port_opts = (SET_T_CODE_POLARITY_NON_INVERTED | + SET_CLOCK_NOT_DELAYED | + SET_CLOCK_INVERTED | + SET_VSYNC_OFF), }, [SAA7134_BOARD_TWINHAN_DTV_DVB_3056] = { .name = "Twinhan Hybrid DTV-DVB 3056 PCI", @@ -4114,11 +4193,7 @@ struct saa7134_board saa7134_boards[] = { .radio_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, - /* - TODO: .mpeg = SAA7134_MPEG_DVB, - */ - .inputs = {{ .name = name_tv, .vmux = 1, @@ -4145,6 +4220,7 @@ struct saa7134_board saa7134_boards[] = { .radio_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, + .mpeg = SAA7134_MPEG_DVB, .inputs = {{ .name = name_tv, .vmux = 1, @@ -4157,7 +4233,7 @@ struct saa7134_board saa7134_boards[] = { } }, .radio = { .name = name_radio, - .amux = LINE1, + .amux = TV, }, }, [SAA7134_BOARD_AVERMEDIA_M115] = { @@ -5229,13 +5305,13 @@ struct pci_device_id saa7134_pci_tbl[] = { .device = PCI_DEVICE_ID_PHILIPS_SAA7133, .subvendor = 0x5ace, .subdevice = 0x6193, - .driver_data = SAA7134_BOARD_BEHOLD_M6, + .driver_data = SAA7134_BOARD_BEHOLD_M6_EXTRA, }, { .vendor = PCI_VENDOR_ID_PHILIPS, .device = PCI_DEVICE_ID_PHILIPS_SAA7133, .subvendor = 0x5ace, .subdevice = 0x6191, - .driver_data = SAA7134_BOARD_BEHOLD_M6, + .driver_data = SAA7134_BOARD_BEHOLD_M63, },{ .vendor = PCI_VENDOR_ID_PHILIPS, .device = PCI_DEVICE_ID_PHILIPS_SAA7133, @@ -5351,22 +5427,21 @@ static int saa7134_xc2028_callback(struct saa7134_dev *dev, { switch (command) { case XC2028_TUNER_RESET: - saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x06e20000, 0x06e20000); - saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x06a20000, 0x06a20000); - mdelay(250); - saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x06e20000, 0); - saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x06a20000, 0); - mdelay(250); - saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x06e20000, 0x06e20000); - saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x06a20000, 0x06a20000); - mdelay(250); - saa_andorl(SAA7133_ANALOG_IO_SELECT >> 2, 0x02, 0x02); - saa_andorl(SAA7134_ANALOG_IN_CTRL1 >> 2, 0x81, 0x81); - saa_andorl(SAA7134_AUDIO_CLOCK0 >> 2, 0x03187de7, 0x03187de7); - saa_andorl(SAA7134_AUDIO_PLL_CTRL >> 2, 0x03, 0x03); - saa_andorl(SAA7134_AUDIO_CLOCKS_PER_FIELD0 >> 2, - 0x0001e000, 0x0001e000); - return 0; + saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x00008000, 0x00000000); + saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x00008000, 0x00008000); + switch (dev->board) { + case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: + saa7134_set_gpio(dev, 23, 0); + msleep(10); + saa7134_set_gpio(dev, 23, 1); + break; + case SAA7134_BOARD_AVERMEDIA_A16D: + saa7134_set_gpio(dev, 21, 0); + msleep(10); + saa7134_set_gpio(dev, 21, 1); + break; + } + return 0; } return -EINVAL; } @@ -5553,9 +5628,7 @@ int saa7134_board_init1(struct saa7134_dev *dev) saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x08000000, 0x00000000); break; case SAA7134_BOARD_AVERMEDIA_CARDBUS: - case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: case SAA7134_BOARD_AVERMEDIA_M115: - case SAA7134_BOARD_AVERMEDIA_A16D: /* power-down tuner chip */ saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0xffffffff, 0); saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0xffffffff, 0); @@ -5565,6 +5638,18 @@ int saa7134_board_init1(struct saa7134_dev *dev) saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0xffffffff, 0xffffffff); msleep(10); break; + case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: + saa7134_set_gpio(dev, 23, 0); + msleep(10); + saa7134_set_gpio(dev, 23, 1); + break; + case SAA7134_BOARD_AVERMEDIA_A16D: + saa7134_set_gpio(dev, 21, 0); + msleep(10); + saa7134_set_gpio(dev, 21, 1); + msleep(1); + dev->has_remote = SAA7134_REMOTE_GPIO; + break; case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM: /* power-down tuner chip */ saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x000A8004, 0x000A8004); @@ -5595,6 +5680,8 @@ int saa7134_board_init1(struct saa7134_dev *dev) case SAA7134_BOARD_HAUPPAUGE_HVR1110: case SAA7134_BOARD_BEHOLD_607_9FM: case SAA7134_BOARD_BEHOLD_M6: + case SAA7134_BOARD_BEHOLD_M63: + case SAA7134_BOARD_BEHOLD_M6_EXTRA: dev->has_remote = SAA7134_REMOTE_I2C; break; case SAA7134_BOARD_AVERMEDIA_A169_B: @@ -5615,7 +5702,8 @@ int saa7134_board_init1(struct saa7134_dev *dev) saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x80040100, 0x80040100); saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x80040100, 0x00040100); printk("%s: %s: hybrid analog/dvb card\n" - "%s: Sorry, only the analog inputs are supported for now.\n", + "%s: Sorry, only analog s-video and composite input " + "are supported for now.\n", dev->name, card(dev).name, dev->name); break; } @@ -5675,6 +5763,7 @@ static void saa7134_tuner_setup(struct saa7134_dev *dev) switch (dev->board) { case SAA7134_BOARD_AVERMEDIA_A16D: + case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: ctl.demod = XC3028_FE_ZARLINK456; break; default: diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c index 469f93aac008..341b101b0357 100644 --- a/drivers/media/video/saa7134/saa7134-dvb.c +++ b/drivers/media/video/saa7134/saa7134-dvb.c @@ -153,12 +153,12 @@ static int mt352_aver777_init(struct dvb_frontend* fe) return 0; } -static int mt352_aver_a16d_init(struct dvb_frontend *fe) +static int mt352_avermedia_xc3028_init(struct dvb_frontend *fe) { - static u8 clock_config [] = { CLOCK_CTL, 0x38, 0x2d }; - static u8 reset [] = { RESET, 0x80 }; - static u8 adc_ctl_1_cfg [] = { ADC_CTL_1, 0x40 }; - static u8 agc_cfg [] = { AGC_TARGET, 0x28, 0xa0 }; + static u8 clock_config [] = { CLOCK_CTL, 0x38, 0x2d }; + static u8 reset [] = { RESET, 0x80 }; + static u8 adc_ctl_1_cfg [] = { ADC_CTL_1, 0x40 }; + static u8 agc_cfg [] = { AGC_TARGET, 0xe }; static u8 capt_range_cfg[] = { CAPT_RANGE, 0x33 }; mt352_write(fe, clock_config, sizeof(clock_config)); @@ -167,12 +167,9 @@ static int mt352_aver_a16d_init(struct dvb_frontend *fe) mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg)); mt352_write(fe, agc_cfg, sizeof(agc_cfg)); mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg)); - return 0; } - - static int mt352_pinnacle_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters* params) { @@ -215,14 +212,10 @@ static struct mt352_config avermedia_777 = { .demod_init = mt352_aver777_init, }; -static struct mt352_config avermedia_16d = { - .demod_address = 0xf, - .demod_init = mt352_aver_a16d_init, -}; - -static struct mt352_config avermedia_e506r_mt352_dev = { +static struct mt352_config avermedia_xc3028_mt352_dev = { .demod_address = (0x1e >> 1), .no_tuner = 1, + .demod_init = mt352_avermedia_xc3028_init, }; /* ================================================================== @@ -975,9 +968,10 @@ static int dvb_init(struct saa7134_dev *dev) } break; case SAA7134_BOARD_AVERMEDIA_A16D: - dprintk("avertv A16D dvb setup\n"); - dev->dvb.frontend = dvb_attach(mt352_attach, &avermedia_16d, - &dev->i2c_adap); + dprintk("AverMedia A16D dvb setup\n"); + dev->dvb.frontend = dvb_attach(mt352_attach, + &avermedia_xc3028_mt352_dev, + &dev->i2c_adap); attach_xc3028 = 1; break; case SAA7134_BOARD_MD7134: @@ -1091,7 +1085,8 @@ static int dvb_init(struct saa7134_dev *dev) ads_tech_duo_config.tuner_address); goto dettach_frontend; } - } + } else + wprintk("failed to attach tda10046\n"); break; case SAA7134_BOARD_TEVION_DVBT_220RF: if (configure_tda827x_fe(dev, &tevion_dvbt220rf_config, @@ -1260,11 +1255,14 @@ static int dvb_init(struct saa7134_dev *dev) goto dettach_frontend; break; case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: + dprintk("AverMedia E506R dvb setup\n"); + saa7134_set_gpio(dev, 25, 0); + msleep(10); + saa7134_set_gpio(dev, 25, 1); dev->dvb.frontend = dvb_attach(mt352_attach, - &avermedia_e506r_mt352_dev, - &dev->i2c_adap); + &avermedia_xc3028_mt352_dev, + &dev->i2c_adap); attach_xc3028 = 1; - break; case SAA7134_BOARD_MD7134_BRIDGE_2: dev->dvb.frontend = dvb_attach(tda10086_attach, &sd1878_4m, &dev->i2c_adap); @@ -1338,7 +1336,8 @@ static int dvb_init(struct saa7134_dev *dev) return ret; dettach_frontend: - dvb_frontend_detach(dev->dvb.frontend); + if (dev->dvb.frontend) + dvb_frontend_detach(dev->dvb.frontend); dev->dvb.frontend = NULL; return -1; diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c index 81431ee41842..654b151fdb64 100644 --- a/drivers/media/video/saa7134/saa7134-empress.c +++ b/drivers/media/video/saa7134/saa7134-empress.c @@ -112,7 +112,6 @@ static int ts_release(struct inode *inode, struct file *file) videobuf_stop(&dev->empress_tsq); videobuf_mmap_free(&dev->empress_tsq); - dev->empress_users--; /* stop the encoder */ ts_reset_encoder(dev); @@ -121,6 +120,8 @@ static int ts_release(struct inode *inode, struct file *file) saa_writeb(SAA7134_AUDIO_MUTE_CTRL, saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6)); + dev->empress_users--; + return 0; } @@ -203,7 +204,7 @@ static int empress_s_input(struct file *file, void *priv, unsigned int i) return 0; } -static int empress_enum_fmt_cap(struct file *file, void *priv, +static int empress_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (f->index != 0) @@ -215,11 +216,10 @@ static int empress_enum_fmt_cap(struct file *file, void *priv, return 0; } -static int empress_g_fmt_cap(struct file *file, void *priv, +static int empress_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; saa7134_i2c_call_clients(dev, VIDIOC_G_FMT, f); @@ -229,11 +229,10 @@ static int empress_g_fmt_cap(struct file *file, void *priv, return 0; } -static int empress_s_fmt_cap(struct file *file, void *priv, +static int empress_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; saa7134_i2c_call_clients(dev, VIDIOC_S_FMT, f); @@ -247,8 +246,7 @@ static int empress_s_fmt_cap(struct file *file, void *priv, static int empress_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_reqbufs(&dev->empress_tsq, p); } @@ -256,24 +254,21 @@ static int empress_reqbufs(struct file *file, void *priv, static int empress_querybuf(struct file *file, void *priv, struct v4l2_buffer *b) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_querybuf(&dev->empress_tsq, b); } static int empress_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_qbuf(&dev->empress_tsq, b); } static int empress_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_dqbuf(&dev->empress_tsq, b, file->f_flags & O_NONBLOCK); @@ -282,8 +277,7 @@ static int empress_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) static int empress_streamon(struct file *file, void *priv, enum v4l2_buf_type type) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_streamon(&dev->empress_tsq); } @@ -291,8 +285,7 @@ static int empress_streamon(struct file *file, void *priv, static int empress_streamoff(struct file *file, void *priv, enum v4l2_buf_type type) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_streamoff(&dev->empress_tsq); } @@ -300,8 +293,7 @@ static int empress_streamoff(struct file *file, void *priv, static int empress_s_ext_ctrls(struct file *file, void *priv, struct v4l2_ext_controls *ctrls) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; /* count == 0 is abused in saa6752hs.c, so that special case is handled here explicitly. */ @@ -320,8 +312,7 @@ static int empress_s_ext_ctrls(struct file *file, void *priv, static int empress_g_ext_ctrls(struct file *file, void *priv, struct v4l2_ext_controls *ctrls) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG) return -EINVAL; @@ -353,9 +344,9 @@ static struct video_device saa7134_empress_template = .minor = -1, .vidioc_querycap = empress_querycap, - .vidioc_enum_fmt_cap = empress_enum_fmt_cap, - .vidioc_s_fmt_cap = empress_s_fmt_cap, - .vidioc_g_fmt_cap = empress_g_fmt_cap, + .vidioc_enum_fmt_vid_cap = empress_enum_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = empress_s_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = empress_g_fmt_vid_cap, .vidioc_reqbufs = empress_reqbufs, .vidioc_querybuf = empress_querybuf, .vidioc_qbuf = empress_qbuf, diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c index 919632b10aae..6edabc06e6d0 100644 --- a/drivers/media/video/saa7134/saa7134-input.c +++ b/drivers/media/video/saa7134/saa7134-input.c @@ -323,6 +323,15 @@ int saa7134_input_init1(struct saa7134_dev *dev) saa_setb(SAA7134_GPIO_GPMODE1, 0x1); saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1); break; + case SAA7134_BOARD_AVERMEDIA_A16D: + ir_codes = ir_codes_avermedia_a16d; + mask_keycode = 0x02F200; + mask_keydown = 0x000400; + polling = 50; /* ms */ + /* Without this we won't receive key up events */ + saa_setb(SAA7134_GPIO_GPMODE1, 0x1); + saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1); + break; case SAA7134_BOARD_KWORLD_TERMINATOR: ir_codes = ir_codes_pixelview; mask_keycode = 0x00001f; @@ -531,6 +540,8 @@ void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir) break; case SAA7134_BOARD_BEHOLD_607_9FM: case SAA7134_BOARD_BEHOLD_M6: + case SAA7134_BOARD_BEHOLD_M63: + case SAA7134_BOARD_BEHOLD_M6_EXTRA: case SAA7134_BOARD_BEHOLD_H6: snprintf(ir->c.name, sizeof(ir->c.name), "BeholdTV"); ir->get_key = get_key_beholdm6xx; diff --git a/drivers/media/video/saa7134/saa7134-reg.h b/drivers/media/video/saa7134/saa7134-reg.h index 86f5eefdb0f6..cf89d96d7295 100644 --- a/drivers/media/video/saa7134/saa7134-reg.h +++ b/drivers/media/video/saa7134/saa7134-reg.h @@ -368,6 +368,7 @@ #define SAA7135_DSP_RWCLEAR 0x586 #define SAA7135_DSP_RWCLEAR_RERR 1 +#define SAA7133_I2S_AUDIO_CONTROL 0x591 /* ------------------------------------------------------------------ */ /* * Local variables: diff --git a/drivers/media/video/saa7134/saa7134-tvaudio.c b/drivers/media/video/saa7134/saa7134-tvaudio.c index 232af598d947..4cc3741c5472 100644 --- a/drivers/media/video/saa7134/saa7134-tvaudio.c +++ b/drivers/media/video/saa7134/saa7134-tvaudio.c @@ -873,13 +873,34 @@ void saa7134_enable_i2s(struct saa7134_dev *dev) if (!card_is_empress(dev)) return; - i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01; - /* enable I2S audio output for the mpeg encoder */ - saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80); - saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format); - saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F); - saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01); + if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130) + return; + + /* configure GPIO for out */ + saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x0E000000, 0x00000000); + + switch (dev->pci->device) { + case PCI_DEVICE_ID_PHILIPS_SAA7133: + case PCI_DEVICE_ID_PHILIPS_SAA7135: + /* Set I2S format (SONY) Â */ + saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00); + /* Start I2S */ + saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11); + break; + + case PCI_DEVICE_ID_PHILIPS_SAA7134: + i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01; + + /* enable I2S audio output for the mpeg encoder */ + saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80); + saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format); + saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F); + saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01); + + default: + break; + } } int saa7134_tvaudio_rx2mode(u32 rx) diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index 48e1a01718ec..1a5137550e7a 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -1496,7 +1496,7 @@ static int video_mmap(struct file *file, struct vm_area_struct * vma) /* ------------------------------------------------------------------ */ -static int saa7134_try_get_set_fmt_vbi(struct file *file, void *priv, +static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_format *f) { struct saa7134_fh *fh = priv; @@ -1516,7 +1516,7 @@ static int saa7134_try_get_set_fmt_vbi(struct file *file, void *priv, return 0; } -static int saa7134_g_fmt_cap(struct file *file, void *priv, +static int saa7134_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct saa7134_fh *fh = priv; @@ -1532,7 +1532,7 @@ static int saa7134_g_fmt_cap(struct file *file, void *priv, return 0; } -static int saa7134_g_fmt_overlay(struct file *file, void *priv, +static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f) { struct saa7134_fh *fh = priv; @@ -1546,7 +1546,7 @@ static int saa7134_g_fmt_overlay(struct file *file, void *priv, return 0; } -static int saa7134_try_fmt_cap(struct file *file, void *priv, +static int saa7134_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct saa7134_fh *fh = priv; @@ -1597,7 +1597,7 @@ static int saa7134_try_fmt_cap(struct file *file, void *priv, return 0; } -static int saa7134_try_fmt_overlay(struct file *file, void *priv, +static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f) { struct saa7134_fh *fh = priv; @@ -1611,13 +1611,13 @@ static int saa7134_try_fmt_overlay(struct file *file, void *priv, return verify_preview(dev, &f->fmt.win); } -static int saa7134_s_fmt_cap(struct file *file, void *priv, +static int saa7134_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct saa7134_fh *fh = priv; int err; - err = saa7134_try_fmt_cap(file, priv, f); + err = saa7134_try_fmt_vid_cap(file, priv, f); if (0 != err) return err; @@ -1628,7 +1628,7 @@ static int saa7134_s_fmt_cap(struct file *file, void *priv, return 0; } -static int saa7134_s_fmt_overlay(struct file *file, void *priv, +static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f) { struct saa7134_fh *fh = priv; @@ -2028,7 +2028,7 @@ static int saa7134_s_priority(struct file *file, void *f, return v4l2_prio_change(&dev->prio, &fh->prio, prio); } -static int saa7134_enum_fmt_cap(struct file *file, void *priv, +static int saa7134_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (f->index >= FORMATS) @@ -2042,7 +2042,7 @@ static int saa7134_enum_fmt_cap(struct file *file, void *priv, return 0; } -static int saa7134_enum_fmt_overlay(struct file *file, void *priv, +static int saa7134_enum_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (saa7134_no_overlay > 0) { @@ -2061,7 +2061,7 @@ static int saa7134_enum_fmt_overlay(struct file *file, void *priv, return 0; } -static int saa7134_enum_fmt_vbi(struct file *file, void *priv, +static int saa7134_enum_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (0 != f->index) @@ -2208,6 +2208,32 @@ static int saa7134_g_parm(struct file *file, void *fh, return 0; } +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int vidioc_g_register (struct file *file, void *priv, + struct v4l2_register *reg) +{ + struct saa7134_fh *fh = priv; + struct saa7134_dev *dev = fh->dev; + + if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return -EINVAL; + reg->val = saa_readb(reg->reg); + return 0; +} + +static int vidioc_s_register (struct file *file, void *priv, + struct v4l2_register *reg) +{ + struct saa7134_fh *fh = priv; + struct saa7134_dev *dev = fh->dev; + + if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) + return -EINVAL; + saa_writeb(reg->reg&0xffffff, reg->val); + return 0; +} +#endif + static int radio_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { @@ -2348,18 +2374,18 @@ struct video_device saa7134_video_template = .fops = &video_fops, .minor = -1, .vidioc_querycap = saa7134_querycap, - .vidioc_enum_fmt_cap = saa7134_enum_fmt_cap, - .vidioc_g_fmt_cap = saa7134_g_fmt_cap, - .vidioc_try_fmt_cap = saa7134_try_fmt_cap, - .vidioc_s_fmt_cap = saa7134_s_fmt_cap, - .vidioc_enum_fmt_overlay = saa7134_enum_fmt_overlay, - .vidioc_g_fmt_overlay = saa7134_g_fmt_overlay, - .vidioc_try_fmt_overlay = saa7134_try_fmt_overlay, - .vidioc_s_fmt_overlay = saa7134_s_fmt_overlay, - .vidioc_enum_fmt_vbi = saa7134_enum_fmt_vbi, - .vidioc_g_fmt_vbi = saa7134_try_get_set_fmt_vbi, - .vidioc_try_fmt_vbi = saa7134_try_get_set_fmt_vbi, - .vidioc_s_fmt_vbi = saa7134_try_get_set_fmt_vbi, + .vidioc_enum_fmt_vid_cap = saa7134_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = saa7134_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = saa7134_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = saa7134_s_fmt_vid_cap, + .vidioc_enum_fmt_vid_overlay = saa7134_enum_fmt_vid_overlay, + .vidioc_g_fmt_vid_overlay = saa7134_g_fmt_vid_overlay, + .vidioc_try_fmt_vid_overlay = saa7134_try_fmt_vid_overlay, + .vidioc_s_fmt_vid_overlay = saa7134_s_fmt_vid_overlay, + .vidioc_enum_fmt_vbi_cap = saa7134_enum_fmt_vbi_cap, + .vidioc_g_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap, + .vidioc_try_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap, + .vidioc_s_fmt_vbi_cap = saa7134_try_get_set_fmt_vbi_cap, .vidioc_g_audio = saa7134_g_audio, .vidioc_s_audio = saa7134_s_audio, .vidioc_cropcap = saa7134_cropcap, @@ -2391,6 +2417,10 @@ struct video_device saa7134_video_template = .vidioc_g_parm = saa7134_g_parm, .vidioc_g_frequency = saa7134_g_frequency, .vidioc_s_frequency = saa7134_s_frequency, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .vidioc_g_register = vidioc_g_register, + .vidioc_s_register = vidioc_s_register, +#endif .tvnorms = SAA7134_NORMS, .current_norm = V4L2_STD_PAL, }; @@ -2458,13 +2488,14 @@ int saa7134_videoport_init(struct saa7134_dev *dev) int vo = saa7134_boards[dev->board].video_out; int video_reg; unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts; + + /* Configure videoport */ saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]); video_reg = video_out[vo][1]; if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED) video_reg &= ~VP_T_CODE_P_INVERTED; saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg); saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]); - saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]); saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]); video_reg = video_out[vo][5]; if (vid_port_opts & SET_CLOCK_NOT_DELAYED) @@ -2481,6 +2512,9 @@ int saa7134_videoport_init(struct saa7134_dev *dev) saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]); saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]); + /* Start videoport */ + saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]); + return 0; } diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index 34ff0d4998f3..0a94be7afc1e 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -264,7 +264,8 @@ struct saa7134_format { #define SAA7134_BOARD_AVERMEDIA_A700_PRO 140 #define SAA7134_BOARD_AVERMEDIA_A700_HYBRID 141 #define SAA7134_BOARD_BEHOLD_H6 142 - +#define SAA7134_BOARD_BEHOLD_M63 143 +#define SAA7134_BOARD_BEHOLD_M6_EXTRA 144 #define SAA7134_MAXBOARDS 8 #define SAA7134_INPUT_MAX 8 diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index a1b92446c8b4..8ae2d9916d9f 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -44,7 +44,7 @@ format_by_fourcc(struct soc_camera_device *icd, unsigned int fourcc) return NULL; } -static int soc_camera_try_fmt_cap(struct file *file, void *priv, +static int soc_camera_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct soc_camera_file *icf = file->private_data; @@ -342,7 +342,7 @@ static struct file_operations soc_camera_fops = { }; -static int soc_camera_s_fmt_cap(struct file *file, void *priv, +static int soc_camera_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct soc_camera_file *icf = file->private_data; @@ -362,7 +362,7 @@ static int soc_camera_s_fmt_cap(struct file *file, void *priv, /* buswidth may be further adjusted by the ici */ icd->buswidth = data_fmt->depth; - ret = soc_camera_try_fmt_cap(file, icf, f); + ret = soc_camera_try_fmt_vid_cap(file, icf, f); if (ret < 0) return ret; @@ -389,7 +389,7 @@ static int soc_camera_s_fmt_cap(struct file *file, void *priv, return ici->ops->set_bus_param(icd, f->fmt.pix.pixelformat); } -static int soc_camera_enum_fmt_cap(struct file *file, void *priv, +static int soc_camera_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { struct soc_camera_file *icf = file->private_data; @@ -408,7 +408,7 @@ static int soc_camera_enum_fmt_cap(struct file *file, void *priv, return 0; } -static int soc_camera_g_fmt_cap(struct file *file, void *priv, +static int soc_camera_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct soc_camera_file *icf = file->private_data; @@ -763,15 +763,6 @@ static struct device_driver ic_drv = { .owner = THIS_MODULE, }; -/* - * Image capture host - this is a host device, not a bus device, so, - * no bus reference, no probing. - */ -static struct class soc_camera_host_class = { - .owner = THIS_MODULE, - .name = "camera_host", -}; - static void dummy_release(struct device *dev) { } @@ -801,7 +792,6 @@ int soc_camera_host_register(struct soc_camera_host *ici) /* Number might be equal to the platform device ID */ sprintf(ici->dev.bus_id, "camera_host%d", ici->nr); - ici->dev.class = &soc_camera_host_class; mutex_lock(&list_lock); list_for_each_entry(ix, &hosts, list) { @@ -935,15 +925,15 @@ int soc_camera_video_start(struct soc_camera_device *icd) vdev->minor = -1; vdev->tvnorms = V4L2_STD_UNKNOWN, vdev->vidioc_querycap = soc_camera_querycap; - vdev->vidioc_g_fmt_cap = soc_camera_g_fmt_cap; - vdev->vidioc_enum_fmt_cap = soc_camera_enum_fmt_cap; - vdev->vidioc_s_fmt_cap = soc_camera_s_fmt_cap; + vdev->vidioc_g_fmt_vid_cap = soc_camera_g_fmt_vid_cap; + vdev->vidioc_enum_fmt_vid_cap = soc_camera_enum_fmt_vid_cap; + vdev->vidioc_s_fmt_vid_cap = soc_camera_s_fmt_vid_cap; vdev->vidioc_enum_input = soc_camera_enum_input; vdev->vidioc_g_input = soc_camera_g_input; vdev->vidioc_s_input = soc_camera_s_input; vdev->vidioc_s_std = soc_camera_s_std; vdev->vidioc_reqbufs = soc_camera_reqbufs; - vdev->vidioc_try_fmt_cap = soc_camera_try_fmt_cap; + vdev->vidioc_try_fmt_vid_cap = soc_camera_try_fmt_vid_cap; vdev->vidioc_querybuf = soc_camera_querybuf; vdev->vidioc_qbuf = soc_camera_qbuf; vdev->vidioc_dqbuf = soc_camera_dqbuf; @@ -1003,14 +993,9 @@ static int __init soc_camera_init(void) ret = driver_register(&ic_drv); if (ret) goto edrvr; - ret = class_register(&soc_camera_host_class); - if (ret) - goto eclr; return 0; -eclr: - driver_unregister(&ic_drv); edrvr: bus_unregister(&soc_camera_bus_type); return ret; @@ -1018,7 +1003,6 @@ edrvr: static void __exit soc_camera_exit(void) { - class_unregister(&soc_camera_host_class); driver_unregister(&ic_drv); bus_unregister(&soc_camera_bus_type); } diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c index b12c60cf5a09..f308c38d744f 100644 --- a/drivers/media/video/stk-webcam.c +++ b/drivers/media/video/stk-webcam.c @@ -981,7 +981,7 @@ static int stk_vidioc_s_ctrl(struct file *filp, } -static int stk_vidioc_enum_fmt_cap(struct file *filp, +static int stk_vidioc_enum_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_fmtdesc *fmtd) { fmtd->flags = 0; @@ -1025,7 +1025,7 @@ static struct stk_size { { .w = 176, .h = 144, .m = MODE_QCIF, }, }; -static int stk_vidioc_g_fmt_cap(struct file *filp, +static int stk_vidioc_g_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_format *f) { struct v4l2_pix_format *pix_format = &f->fmt.pix; @@ -1054,7 +1054,7 @@ static int stk_vidioc_g_fmt_cap(struct file *filp, return 0; } -static int stk_vidioc_try_fmt_cap(struct file *filp, +static int stk_vidioc_try_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_format *fmtd) { int i; @@ -1131,7 +1131,7 @@ static int stk_setup_format(struct stk_camera *dev) return stk_sensor_configure(dev); } -static int stk_vidioc_s_fmt_cap(struct file *filp, +static int stk_vidioc_s_fmt_vid_cap(struct file *filp, void *priv, struct v4l2_format *fmtd) { int ret; @@ -1145,7 +1145,7 @@ static int stk_vidioc_s_fmt_cap(struct file *filp, return -EBUSY; if (dev->owner && dev->owner != filp) return -EBUSY; - ret = stk_vidioc_try_fmt_cap(filp, priv, fmtd); + ret = stk_vidioc_try_fmt_vid_cap(filp, priv, fmtd); if (ret) return ret; dev->owner = filp; @@ -1342,10 +1342,10 @@ static struct video_device stk_v4l_data = { .release = stk_v4l_dev_release, .vidioc_querycap = stk_vidioc_querycap, - .vidioc_enum_fmt_cap = stk_vidioc_enum_fmt_cap, - .vidioc_try_fmt_cap = stk_vidioc_try_fmt_cap, - .vidioc_s_fmt_cap = stk_vidioc_s_fmt_cap, - .vidioc_g_fmt_cap = stk_vidioc_g_fmt_cap, + .vidioc_enum_fmt_vid_cap = stk_vidioc_enum_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = stk_vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = stk_vidioc_s_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = stk_vidioc_g_fmt_vid_cap, .vidioc_enum_input = stk_vidioc_enum_input, .vidioc_s_input = stk_vidioc_s_input, .vidioc_g_input = stk_vidioc_g_input, diff --git a/drivers/media/video/tcm825x.c b/drivers/media/video/tcm825x.c index 8f0100f67a91..29991d1cf13e 100644 --- a/drivers/media/video/tcm825x.c +++ b/drivers/media/video/tcm825x.c @@ -523,6 +523,9 @@ static int ioctl_g_ctrl(struct v4l2_int_device *s, if (val < 0) return val; + if (vc->id == V4L2_CID_HFLIP || vc->id == V4L2_CID_VFLIP) + val ^= sensor->platform_data->is_upside_down(); + vc->value = val; return 0; } @@ -556,6 +559,9 @@ static int ioctl_s_ctrl(struct v4l2_int_device *s, if (lvc == NULL) return -EINVAL; + if (vc->id == V4L2_CID_HFLIP || vc->id == V4L2_CID_VFLIP) + val ^= sensor->platform_data->is_upside_down(); + val = val << lvc->start_bit; if (tcm825x_write_reg_mask(client, lvc->reg, val)) return -EIO; diff --git a/drivers/media/video/tcm825x.h b/drivers/media/video/tcm825x.h index 966765b66b3a..770ebacfa344 100644 --- a/drivers/media/video/tcm825x.h +++ b/drivers/media/video/tcm825x.h @@ -182,6 +182,7 @@ struct tcm825x_platform_data { int (*needs_reset)(struct v4l2_int_device *s, void *buf, struct v4l2_pix_format *fmt); int (*ifparm)(struct v4l2_ifparm *p); + int (*is_upside_down)(void); }; /* Array of image sizes supported by TCM825X. These must be ordered from diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c index d97261ab430f..a9e5e08caec5 100644 --- a/drivers/media/video/usbvision/usbvision-video.c +++ b/drivers/media/video/usbvision/usbvision-video.c @@ -998,7 +998,7 @@ static int vidioc_streamoff(struct file *file, return 0; } -static int vidioc_enum_fmt_cap (struct file *file, void *priv, +static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv, struct v4l2_fmtdesc *vfd) { if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { @@ -1012,7 +1012,7 @@ static int vidioc_enum_fmt_cap (struct file *file, void *priv, return 0; } -static int vidioc_g_fmt_cap (struct file *file, void *priv, +static int vidioc_g_fmt_vid_cap (struct file *file, void *priv, struct v4l2_format *vf) { struct video_device *dev = video_devdata(file); @@ -1030,7 +1030,7 @@ static int vidioc_g_fmt_cap (struct file *file, void *priv, return 0; } -static int vidioc_try_fmt_cap (struct file *file, void *priv, +static int vidioc_try_fmt_vid_cap (struct file *file, void *priv, struct v4l2_format *vf) { struct video_device *dev = video_devdata(file); @@ -1060,7 +1060,7 @@ static int vidioc_try_fmt_cap (struct file *file, void *priv, return 0; } -static int vidioc_s_fmt_cap(struct file *file, void *priv, +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *vf) { struct video_device *dev = video_devdata(file); @@ -1068,7 +1068,7 @@ static int vidioc_s_fmt_cap(struct file *file, void *priv, (struct usb_usbvision *) video_get_drvdata(dev); int ret; - if( 0 != (ret=vidioc_try_fmt_cap (file, priv, vf)) ) { + if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) { return ret; } @@ -1407,10 +1407,10 @@ static struct video_device usbvision_video_template = { .release = video_device_release, .minor = -1, .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, - .vidioc_g_fmt_cap = vidioc_g_fmt_cap, - .vidioc_try_fmt_cap = vidioc_try_fmt_cap, - .vidioc_s_fmt_cap = vidioc_s_fmt_cap, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, .vidioc_qbuf = vidioc_qbuf, diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index 31e8af0ba278..d9130084de34 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c @@ -17,15 +17,19 @@ */ #define dbgarg(cmd, fmt, arg...) \ - if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ + do { \ + if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ printk(KERN_DEBUG "%s: ", vfd->name); \ v4l_printk_ioctl(cmd); \ printk(" " fmt, ## arg); \ - } + } \ + } while (0) #define dbgarg2(fmt, arg...) \ - if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ - printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg); + do { \ + if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ + printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ + } while (0) #include <linux/module.h> #include <linux/types.h> @@ -51,12 +55,51 @@ #define VIDEO_NUM_DEVICES 256 #define VIDEO_NAME "video4linux" +struct std_descr { + v4l2_std_id std; + const char *descr; +}; + +static const struct std_descr standards[] = { + { V4L2_STD_NTSC, "NTSC" }, + { V4L2_STD_NTSC_M, "NTSC-M" }, + { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, + { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, + { V4L2_STD_NTSC_443, "NTSC-443" }, + { V4L2_STD_PAL, "PAL" }, + { V4L2_STD_PAL_BG, "PAL-BG" }, + { V4L2_STD_PAL_B, "PAL-B" }, + { V4L2_STD_PAL_B1, "PAL-B1" }, + { V4L2_STD_PAL_G, "PAL-G" }, + { V4L2_STD_PAL_H, "PAL-H" }, + { V4L2_STD_PAL_I, "PAL-I" }, + { V4L2_STD_PAL_DK, "PAL-DK" }, + { V4L2_STD_PAL_D, "PAL-D" }, + { V4L2_STD_PAL_D1, "PAL-D1" }, + { V4L2_STD_PAL_K, "PAL-K" }, + { V4L2_STD_PAL_M, "PAL-M" }, + { V4L2_STD_PAL_N, "PAL-N" }, + { V4L2_STD_PAL_Nc, "PAL-Nc" }, + { V4L2_STD_PAL_60, "PAL-60" }, + { V4L2_STD_SECAM, "SECAM" }, + { V4L2_STD_SECAM_B, "SECAM-B" }, + { V4L2_STD_SECAM_G, "SECAM-G" }, + { V4L2_STD_SECAM_H, "SECAM-H" }, + { V4L2_STD_SECAM_DK, "SECAM-DK" }, + { V4L2_STD_SECAM_D, "SECAM-D" }, + { V4L2_STD_SECAM_K, "SECAM-K" }, + { V4L2_STD_SECAM_K1, "SECAM-K1" }, + { V4L2_STD_SECAM_L, "SECAM-L" }, + { V4L2_STD_SECAM_LC, "SECAM-Lc" }, + { 0, "Unknown" } +}; + /* video4linux standard ID conversion to standard name */ -char *v4l2_norm_to_name(v4l2_std_id id) +const char *v4l2_norm_to_name(v4l2_std_id id) { - char *name; u32 myid = id; + int i; /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle 64 bit comparations. So, on that architecture, with some gcc @@ -64,110 +107,17 @@ char *v4l2_norm_to_name(v4l2_std_id id) */ BUG_ON(myid != id); - switch (myid) { - case V4L2_STD_PAL: - name = "PAL"; - break; - case V4L2_STD_PAL_BG: - name = "PAL-BG"; - break; - case V4L2_STD_PAL_DK: - name = "PAL-DK"; - break; - case V4L2_STD_PAL_B: - name = "PAL-B"; - break; - case V4L2_STD_PAL_B1: - name = "PAL-B1"; - break; - case V4L2_STD_PAL_G: - name = "PAL-G"; - break; - case V4L2_STD_PAL_H: - name = "PAL-H"; - break; - case V4L2_STD_PAL_I: - name = "PAL-I"; - break; - case V4L2_STD_PAL_D: - name = "PAL-D"; - break; - case V4L2_STD_PAL_D1: - name = "PAL-D1"; - break; - case V4L2_STD_PAL_K: - name = "PAL-K"; - break; - case V4L2_STD_PAL_M: - name = "PAL-M"; - break; - case V4L2_STD_PAL_N: - name = "PAL-N"; - break; - case V4L2_STD_PAL_Nc: - name = "PAL-Nc"; - break; - case V4L2_STD_PAL_60: - name = "PAL-60"; - break; - case V4L2_STD_NTSC: - name = "NTSC"; - break; - case V4L2_STD_NTSC_M: - name = "NTSC-M"; - break; - case V4L2_STD_NTSC_M_JP: - name = "NTSC-M-JP"; - break; - case V4L2_STD_NTSC_443: - name = "NTSC-443"; - break; - case V4L2_STD_NTSC_M_KR: - name = "NTSC-M-KR"; - break; - case V4L2_STD_SECAM: - name = "SECAM"; - break; - case V4L2_STD_SECAM_DK: - name = "SECAM-DK"; - break; - case V4L2_STD_SECAM_B: - name = "SECAM-B"; - break; - case V4L2_STD_SECAM_D: - name = "SECAM-D"; - break; - case V4L2_STD_SECAM_G: - name = "SECAM-G"; - break; - case V4L2_STD_SECAM_H: - name = "SECAM-H"; - break; - case V4L2_STD_SECAM_K: - name = "SECAM-K"; - break; - case V4L2_STD_SECAM_K1: - name = "SECAM-K1"; - break; - case V4L2_STD_SECAM_L: - name = "SECAM-L"; - break; - case V4L2_STD_SECAM_LC: - name = "SECAM-LC"; - break; - default: - name = "Unknown"; - break; - } - - return name; + for (i = 0; standards[i].std; i++) + if (myid == standards[i].std) + break; + return standards[i].descr; } EXPORT_SYMBOL(v4l2_norm_to_name); /* Fill in the fields of a v4l2_standard structure according to the 'id' and 'transmission' parameters. Returns negative on error. */ int v4l2_video_std_construct(struct v4l2_standard *vs, - int id, char *name) + int id, const char *name) { u32 index = vs->index; @@ -191,7 +141,7 @@ EXPORT_SYMBOL(v4l2_video_std_construct); /* ----------------------------------------------------------------- */ /* some arrays for pretty-printing debug messages of enum types */ -char *v4l2_field_names[] = { +const char *v4l2_field_names[] = { [V4L2_FIELD_ANY] = "any", [V4L2_FIELD_NONE] = "none", [V4L2_FIELD_TOP] = "top", @@ -205,19 +155,19 @@ char *v4l2_field_names[] = { }; EXPORT_SYMBOL(v4l2_field_names); -char *v4l2_type_names[] = { - [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap", - [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over", - [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out", +const char *v4l2_type_names[] = { + [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", + [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", + [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", - [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "video-out-over", + [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", }; EXPORT_SYMBOL(v4l2_type_names); -static char *v4l2_memory_names[] = { +static const char *v4l2_memory_names[] = { [V4L2_MEMORY_MMAP] = "mmap", [V4L2_MEMORY_USERPTR] = "userptr", [V4L2_MEMORY_OVERLAY] = "overlay", @@ -331,6 +281,7 @@ static const char *v4l2_ioctls[] = { [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", [_IOC_NR(VIDIOC_G_CHIP_IDENT)] = "VIDIOC_G_CHIP_IDENT", + [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", #endif }; #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) @@ -424,6 +375,14 @@ EXPORT_SYMBOL(v4l_printk_ioctl); * sysfs stuff */ +static ssize_t show_index(struct device *cd, + struct device_attribute *attr, char *buf) +{ + struct video_device *vfd = container_of(cd, struct video_device, + class_dev); + return sprintf(buf, "%i\n", vfd->index); +} + static ssize_t show_name(struct device *cd, struct device_attribute *attr, char *buf) { @@ -462,6 +421,7 @@ static void video_release(struct device *cd) static struct device_attribute video_device_attrs[] = { __ATTR(name, S_IRUGO, show_name, NULL), + __ATTR(index, S_IRUGO, show_index, NULL), __ATTR_NULL }; @@ -700,7 +660,7 @@ static void dbgbuf(unsigned int cmd, struct video_device *vfd, p->field, p->sequence, prt_names(p->memory, v4l2_memory_names), p->m.userptr, p->length); - dbgarg2 ("timecode= %02d:%02d:%02d type=%d, " + dbgarg2("timecode=%02d:%02d:%02d type=%d, " "flags=0x%08d, frames=%d, userbits=0x%08x\n", tc->hours,tc->minutes,tc->seconds, tc->type, tc->flags, tc->frames, *(__u32 *) tc->userbits); @@ -709,7 +669,7 @@ static void dbgbuf(unsigned int cmd, struct video_device *vfd, static inline void dbgrect(struct video_device *vfd, char *s, struct v4l2_rect *r) { - dbgarg2 ("%sRect start at %dx%d, size= %dx%d\n", s, r->left, r->top, + dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, r->width, r->height); }; @@ -727,40 +687,59 @@ static inline void v4l_print_pix_fmt (struct video_device *vfd, fmt->bytesperline, fmt->sizeimage, fmt->colorspace); }; +static inline void v4l_print_ext_ctrls(unsigned int cmd, + struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) +{ + __u32 i; + + if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) + return; + dbgarg(cmd, ""); + printk(KERN_CONT "class=0x%x", c->ctrl_class); + for (i = 0; i < c->count; i++) { + if (show_vals) + printk(KERN_CONT " id/val=0x%x/0x%x", + c->controls[i].id, c->controls[i].value); + else + printk(KERN_CONT " id=0x%x", c->controls[i].id); + } + printk(KERN_CONT "\n"); +}; + static int check_fmt (struct video_device *vfd, enum v4l2_buf_type type) { switch (type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (vfd->vidioc_try_fmt_cap) + if (vfd->vidioc_try_fmt_vid_cap) return (0); break; case V4L2_BUF_TYPE_VIDEO_OVERLAY: - if (vfd->vidioc_try_fmt_overlay) + if (vfd->vidioc_try_fmt_vid_overlay) return (0); break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - if (vfd->vidioc_try_fmt_vbi) + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (vfd->vidioc_try_fmt_vid_out) return (0); break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - if (vfd->vidioc_try_fmt_vbi_output) + case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: + if (vfd->vidioc_try_fmt_vid_out_overlay) return (0); break; - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - if (vfd->vidioc_try_fmt_vbi_capture) + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_try_fmt_vbi_cap) return (0); break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (vfd->vidioc_try_fmt_video_output) + case V4L2_BUF_TYPE_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_vbi_out) return (0); break; - case V4L2_BUF_TYPE_VBI_OUTPUT: - if (vfd->vidioc_try_fmt_vbi_output) + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_try_fmt_sliced_vbi_cap) return (0); break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: - if (vfd->vidioc_try_fmt_output_overlay) + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_sliced_vbi_out) return (0); break; case V4L2_BUF_TYPE_PRIVATE: @@ -877,46 +856,37 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, switch (type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (vfd->vidioc_enum_fmt_cap) - ret=vfd->vidioc_enum_fmt_cap(file, fh, f); + if (vfd->vidioc_enum_fmt_vid_cap) + ret = vfd->vidioc_enum_fmt_vid_cap(file, fh, f); break; case V4L2_BUF_TYPE_VIDEO_OVERLAY: - if (vfd->vidioc_enum_fmt_overlay) - ret=vfd->vidioc_enum_fmt_overlay(file, fh, f); + if (vfd->vidioc_enum_fmt_vid_overlay) + ret = vfd->vidioc_enum_fmt_vid_overlay(file, + fh, f); break; +#if 1 + /* V4L2_BUF_TYPE_VBI_CAPTURE should not support VIDIOC_ENUM_FMT + * according to the spec. The bttv and saa7134 drivers support + * it though, so just warn that this is deprecated and will be + * removed in the near future. */ case V4L2_BUF_TYPE_VBI_CAPTURE: - if (vfd->vidioc_enum_fmt_vbi) - ret=vfd->vidioc_enum_fmt_vbi(file, fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - if (vfd->vidioc_enum_fmt_vbi_output) - ret=vfd->vidioc_enum_fmt_vbi_output(file, - fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - if (vfd->vidioc_enum_fmt_vbi_capture) - ret=vfd->vidioc_enum_fmt_vbi_capture(file, - fh, f); + if (vfd->vidioc_enum_fmt_vbi_cap) { + printk(KERN_WARNING "vidioc_enum_fmt_vbi_cap will be removed in 2.6.28!\n"); + ret = vfd->vidioc_enum_fmt_vbi_cap(file, fh, f); + } break; +#endif case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (vfd->vidioc_enum_fmt_video_output) - ret=vfd->vidioc_enum_fmt_video_output(file, - fh, f); - break; - case V4L2_BUF_TYPE_VBI_OUTPUT: - if (vfd->vidioc_enum_fmt_vbi_output) - ret=vfd->vidioc_enum_fmt_vbi_output(file, - fh, f); - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: - if (vfd->vidioc_enum_fmt_output_overlay) - ret=vfd->vidioc_enum_fmt_output_overlay(file, fh, f); + if (vfd->vidioc_enum_fmt_vid_out) + ret = vfd->vidioc_enum_fmt_vid_out(file, fh, f); break; case V4L2_BUF_TYPE_PRIVATE: if (vfd->vidioc_enum_fmt_type_private) - ret=vfd->vidioc_enum_fmt_type_private(file, + ret = vfd->vidioc_enum_fmt_type_private(file, fh, f); break; + default: + break; } if (!ret) dbgarg (cmd, "index=%d, type=%d, flags=%d, " @@ -932,54 +902,56 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_G_FMT: { struct v4l2_format *f = (struct v4l2_format *)arg; - enum v4l2_buf_type type=f->type; - memset(&f->fmt.pix,0,sizeof(f->fmt.pix)); - f->type=type; + memset(f->fmt.raw_data, 0, sizeof(f->fmt.raw_data)); /* FIXME: Should be one dump per type */ - dbgarg (cmd, "type=%s\n", prt_names(type, - v4l2_type_names)); + dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); - switch (type) { + switch (f->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (vfd->vidioc_g_fmt_cap) - ret=vfd->vidioc_g_fmt_cap(file, fh, f); + if (vfd->vidioc_g_fmt_vid_cap) + ret = vfd->vidioc_g_fmt_vid_cap(file, fh, f); if (!ret) - v4l_print_pix_fmt(vfd,&f->fmt.pix); + v4l_print_pix_fmt(vfd, &f->fmt.pix); break; case V4L2_BUF_TYPE_VIDEO_OVERLAY: - if (vfd->vidioc_g_fmt_overlay) - ret=vfd->vidioc_g_fmt_overlay(file, fh, f); - break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - if (vfd->vidioc_g_fmt_vbi) - ret=vfd->vidioc_g_fmt_vbi(file, fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - if (vfd->vidioc_g_fmt_vbi_output) - ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - if (vfd->vidioc_g_fmt_vbi_capture) - ret=vfd->vidioc_g_fmt_vbi_capture(file, fh, f); + if (vfd->vidioc_g_fmt_vid_overlay) + ret = vfd->vidioc_g_fmt_vid_overlay(file, + fh, f); break; case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (vfd->vidioc_g_fmt_video_output) - ret=vfd->vidioc_g_fmt_video_output(file, - fh, f); + if (vfd->vidioc_g_fmt_vid_out) + ret = vfd->vidioc_g_fmt_vid_out(file, fh, f); + if (!ret) + v4l_print_pix_fmt(vfd, &f->fmt.pix); break; case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: - if (vfd->vidioc_g_fmt_output_overlay) - ret=vfd->vidioc_g_fmt_output_overlay(file, fh, f); + if (vfd->vidioc_g_fmt_vid_out_overlay) + ret = vfd->vidioc_g_fmt_vid_out_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_g_fmt_vbi_cap) + ret = vfd->vidioc_g_fmt_vbi_cap(file, fh, f); break; case V4L2_BUF_TYPE_VBI_OUTPUT: - if (vfd->vidioc_g_fmt_vbi_output) - ret=vfd->vidioc_g_fmt_vbi_output(file, fh, f); + if (vfd->vidioc_g_fmt_vbi_out) + ret = vfd->vidioc_g_fmt_vbi_out(file, fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_g_fmt_sliced_vbi_cap) + ret = vfd->vidioc_g_fmt_sliced_vbi_cap(file, + fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_g_fmt_sliced_vbi_out) + ret = vfd->vidioc_g_fmt_sliced_vbi_out(file, + fh, f); break; case V4L2_BUF_TYPE_PRIVATE: if (vfd->vidioc_g_fmt_type_private) - ret=vfd->vidioc_g_fmt_type_private(file, + ret = vfd->vidioc_g_fmt_type_private(file, fh, f); break; } @@ -991,48 +963,50 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, struct v4l2_format *f = (struct v4l2_format *)arg; /* FIXME: Should be one dump per type */ - dbgarg (cmd, "type=%s\n", prt_names(f->type, - v4l2_type_names)); + dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); switch (f->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: - v4l_print_pix_fmt(vfd,&f->fmt.pix); - if (vfd->vidioc_s_fmt_cap) - ret=vfd->vidioc_s_fmt_cap(file, fh, f); + v4l_print_pix_fmt(vfd, &f->fmt.pix); + if (vfd->vidioc_s_fmt_vid_cap) + ret = vfd->vidioc_s_fmt_vid_cap(file, fh, f); break; case V4L2_BUF_TYPE_VIDEO_OVERLAY: - if (vfd->vidioc_s_fmt_overlay) - ret=vfd->vidioc_s_fmt_overlay(file, fh, f); - break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - if (vfd->vidioc_s_fmt_vbi) - ret=vfd->vidioc_s_fmt_vbi(file, fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - if (vfd->vidioc_s_fmt_vbi_output) - ret=vfd->vidioc_s_fmt_vbi_output(file, fh, f); - break; - case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - if (vfd->vidioc_s_fmt_vbi_capture) - ret=vfd->vidioc_s_fmt_vbi_capture(file, fh, f); + if (vfd->vidioc_s_fmt_vid_overlay) + ret = vfd->vidioc_s_fmt_vid_overlay(file, + fh, f); break; case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (vfd->vidioc_s_fmt_video_output) - ret=vfd->vidioc_s_fmt_video_output(file, - fh, f); + v4l_print_pix_fmt(vfd, &f->fmt.pix); + if (vfd->vidioc_s_fmt_vid_out) + ret = vfd->vidioc_s_fmt_vid_out(file, fh, f); break; case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: - if (vfd->vidioc_s_fmt_output_overlay) - ret=vfd->vidioc_s_fmt_output_overlay(file, fh, f); + if (vfd->vidioc_s_fmt_vid_out_overlay) + ret = vfd->vidioc_s_fmt_vid_out_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (vfd->vidioc_s_fmt_vbi_cap) + ret = vfd->vidioc_s_fmt_vbi_cap(file, fh, f); break; case V4L2_BUF_TYPE_VBI_OUTPUT: - if (vfd->vidioc_s_fmt_vbi_output) - ret=vfd->vidioc_s_fmt_vbi_output(file, - fh, f); + if (vfd->vidioc_s_fmt_vbi_out) + ret = vfd->vidioc_s_fmt_vbi_out(file, fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + if (vfd->vidioc_s_fmt_sliced_vbi_cap) + ret = vfd->vidioc_s_fmt_sliced_vbi_cap(file, + fh, f); + break; + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_s_fmt_sliced_vbi_out) + ret = vfd->vidioc_s_fmt_sliced_vbi_out(file, + fh, f); break; case V4L2_BUF_TYPE_PRIVATE: if (vfd->vidioc_s_fmt_type_private) - ret=vfd->vidioc_s_fmt_type_private(file, + ret = vfd->vidioc_s_fmt_type_private(file, fh, f); break; } @@ -1047,46 +1021,48 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, v4l2_type_names)); switch (f->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (vfd->vidioc_try_fmt_cap) - ret=vfd->vidioc_try_fmt_cap(file, fh, f); + if (vfd->vidioc_try_fmt_vid_cap) + ret = vfd->vidioc_try_fmt_vid_cap(file, fh, f); if (!ret) - v4l_print_pix_fmt(vfd,&f->fmt.pix); + v4l_print_pix_fmt(vfd, &f->fmt.pix); break; case V4L2_BUF_TYPE_VIDEO_OVERLAY: - if (vfd->vidioc_try_fmt_overlay) - ret=vfd->vidioc_try_fmt_overlay(file, fh, f); + if (vfd->vidioc_try_fmt_vid_overlay) + ret = vfd->vidioc_try_fmt_vid_overlay(file, + fh, f); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (vfd->vidioc_try_fmt_vid_out) + ret = vfd->vidioc_try_fmt_vid_out(file, fh, f); + if (!ret) + v4l_print_pix_fmt(vfd, &f->fmt.pix); + break; + case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: + if (vfd->vidioc_try_fmt_vid_out_overlay) + ret = vfd->vidioc_try_fmt_vid_out_overlay(file, + fh, f); break; case V4L2_BUF_TYPE_VBI_CAPTURE: - if (vfd->vidioc_try_fmt_vbi) - ret=vfd->vidioc_try_fmt_vbi(file, fh, f); + if (vfd->vidioc_try_fmt_vbi_cap) + ret = vfd->vidioc_try_fmt_vbi_cap(file, fh, f); break; - case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: - if (vfd->vidioc_try_fmt_vbi_output) - ret=vfd->vidioc_try_fmt_vbi_output(file, - fh, f); + case V4L2_BUF_TYPE_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_vbi_out) + ret = vfd->vidioc_try_fmt_vbi_out(file, fh, f); break; case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: - if (vfd->vidioc_try_fmt_vbi_capture) - ret=vfd->vidioc_try_fmt_vbi_capture(file, + if (vfd->vidioc_try_fmt_sliced_vbi_cap) + ret = vfd->vidioc_try_fmt_sliced_vbi_cap(file, fh, f); break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (vfd->vidioc_try_fmt_video_output) - ret=vfd->vidioc_try_fmt_video_output(file, - fh, f); - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: - if (vfd->vidioc_try_fmt_output_overlay) - ret=vfd->vidioc_try_fmt_output_overlay(file, fh, f); - break; - case V4L2_BUF_TYPE_VBI_OUTPUT: - if (vfd->vidioc_try_fmt_vbi_output) - ret=vfd->vidioc_try_fmt_vbi_output(file, + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + if (vfd->vidioc_try_fmt_sliced_vbi_out) + ret = vfd->vidioc_try_fmt_sliced_vbi_out(file, fh, f); break; case V4L2_BUF_TYPE_PRIVATE: if (vfd->vidioc_try_fmt_type_private) - ret=vfd->vidioc_try_fmt_type_private(file, + ret = vfd->vidioc_try_fmt_type_private(file, fh, f); break; } @@ -1170,29 +1146,29 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } case VIDIOC_G_FBUF: { - struct v4l2_framebuffer *p=arg; + struct v4l2_framebuffer *p = arg; + if (!vfd->vidioc_g_fbuf) break; - ret=vfd->vidioc_g_fbuf(file, fh, arg); + ret = vfd->vidioc_g_fbuf(file, fh, arg); if (!ret) { - dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n", - p->capability,p->flags, + dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", + p->capability, p->flags, (unsigned long)p->base); - v4l_print_pix_fmt (vfd, &p->fmt); + v4l_print_pix_fmt(vfd, &p->fmt); } break; } case VIDIOC_S_FBUF: { - struct v4l2_framebuffer *p=arg; + struct v4l2_framebuffer *p = arg; + if (!vfd->vidioc_s_fbuf) break; - - dbgarg (cmd, "capability=%d, flags=%d, base=0x%08lx\n", - p->capability,p->flags,(unsigned long)p->base); - v4l_print_pix_fmt (vfd, &p->fmt); - ret=vfd->vidioc_s_fbuf(file, fh, arg); - + dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", + p->capability, p->flags, (unsigned long)p->base); + v4l_print_pix_fmt(vfd, &p->fmt); + ret = vfd->vidioc_s_fbuf(file, fh, arg); break; } case VIDIOC_STREAMON: @@ -1218,113 +1194,62 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_ENUMSTD: { struct v4l2_standard *p = arg; - v4l2_std_id id = vfd->tvnorms,curr_id=0; - unsigned int index = p->index,i; - - if (index<0) { - ret=-EINVAL; - break; - } - - /* Return norm array on a canonical way */ - for (i=0;i<= index && id; i++) { - if ( (id & V4L2_STD_PAL) == V4L2_STD_PAL) { - curr_id = V4L2_STD_PAL; - } else if ( (id & V4L2_STD_PAL_BG) == V4L2_STD_PAL_BG) { - curr_id = V4L2_STD_PAL_BG; - } else if ( (id & V4L2_STD_PAL_DK) == V4L2_STD_PAL_DK) { - curr_id = V4L2_STD_PAL_DK; - } else if ( (id & V4L2_STD_PAL_B) == V4L2_STD_PAL_B) { - curr_id = V4L2_STD_PAL_B; - } else if ( (id & V4L2_STD_PAL_B1) == V4L2_STD_PAL_B1) { - curr_id = V4L2_STD_PAL_B1; - } else if ( (id & V4L2_STD_PAL_G) == V4L2_STD_PAL_G) { - curr_id = V4L2_STD_PAL_G; - } else if ( (id & V4L2_STD_PAL_H) == V4L2_STD_PAL_H) { - curr_id = V4L2_STD_PAL_H; - } else if ( (id & V4L2_STD_PAL_I) == V4L2_STD_PAL_I) { - curr_id = V4L2_STD_PAL_I; - } else if ( (id & V4L2_STD_PAL_D) == V4L2_STD_PAL_D) { - curr_id = V4L2_STD_PAL_D; - } else if ( (id & V4L2_STD_PAL_D1) == V4L2_STD_PAL_D1) { - curr_id = V4L2_STD_PAL_D1; - } else if ( (id & V4L2_STD_PAL_K) == V4L2_STD_PAL_K) { - curr_id = V4L2_STD_PAL_K; - } else if ( (id & V4L2_STD_PAL_M) == V4L2_STD_PAL_M) { - curr_id = V4L2_STD_PAL_M; - } else if ( (id & V4L2_STD_PAL_N) == V4L2_STD_PAL_N) { - curr_id = V4L2_STD_PAL_N; - } else if ( (id & V4L2_STD_PAL_Nc) == V4L2_STD_PAL_Nc) { - curr_id = V4L2_STD_PAL_Nc; - } else if ( (id & V4L2_STD_PAL_60) == V4L2_STD_PAL_60) { - curr_id = V4L2_STD_PAL_60; - } else if ( (id & V4L2_STD_NTSC) == V4L2_STD_NTSC) { - curr_id = V4L2_STD_NTSC; - } else if ( (id & V4L2_STD_NTSC_M) == V4L2_STD_NTSC_M) { - curr_id = V4L2_STD_NTSC_M; - } else if ( (id & V4L2_STD_NTSC_M_JP) == V4L2_STD_NTSC_M_JP) { - curr_id = V4L2_STD_NTSC_M_JP; - } else if ( (id & V4L2_STD_NTSC_443) == V4L2_STD_NTSC_443) { - curr_id = V4L2_STD_NTSC_443; - } else if ( (id & V4L2_STD_NTSC_M_KR) == V4L2_STD_NTSC_M_KR) { - curr_id = V4L2_STD_NTSC_M_KR; - } else if ( (id & V4L2_STD_SECAM) == V4L2_STD_SECAM) { - curr_id = V4L2_STD_SECAM; - } else if ( (id & V4L2_STD_SECAM_DK) == V4L2_STD_SECAM_DK) { - curr_id = V4L2_STD_SECAM_DK; - } else if ( (id & V4L2_STD_SECAM_B) == V4L2_STD_SECAM_B) { - curr_id = V4L2_STD_SECAM_B; - } else if ( (id & V4L2_STD_SECAM_D) == V4L2_STD_SECAM_D) { - curr_id = V4L2_STD_SECAM_D; - } else if ( (id & V4L2_STD_SECAM_G) == V4L2_STD_SECAM_G) { - curr_id = V4L2_STD_SECAM_G; - } else if ( (id & V4L2_STD_SECAM_H) == V4L2_STD_SECAM_H) { - curr_id = V4L2_STD_SECAM_H; - } else if ( (id & V4L2_STD_SECAM_K) == V4L2_STD_SECAM_K) { - curr_id = V4L2_STD_SECAM_K; - } else if ( (id & V4L2_STD_SECAM_K1) == V4L2_STD_SECAM_K1) { - curr_id = V4L2_STD_SECAM_K1; - } else if ( (id & V4L2_STD_SECAM_L) == V4L2_STD_SECAM_L) { - curr_id = V4L2_STD_SECAM_L; - } else if ( (id & V4L2_STD_SECAM_LC) == V4L2_STD_SECAM_LC) { - curr_id = V4L2_STD_SECAM_LC; - } else { + v4l2_std_id id = vfd->tvnorms, curr_id = 0; + unsigned int index = p->index, i, j = 0; + const char *descr = ""; + + /* Return norm array in a canonical way */ + for (i = 0; i <= index && id; i++) { + /* last std value in the standards array is 0, so this + while always ends there since (id & 0) == 0. */ + while ((id & standards[j].std) != standards[j].std) + j++; + curr_id = standards[j].std; + descr = standards[j].descr; + j++; + if (curr_id == 0) break; - } - id &= ~curr_id; + if (curr_id != V4L2_STD_PAL && + curr_id != V4L2_STD_SECAM && + curr_id != V4L2_STD_NTSC) + id &= ~curr_id; } - if (i<=index) + if (i <= index) return -EINVAL; - v4l2_video_std_construct(p, curr_id,v4l2_norm_to_name(curr_id)); + v4l2_video_std_construct(p, curr_id, descr); p->index = index; - dbgarg (cmd, "index=%d, id=%Ld, name=%s, fps=%d/%d, " + dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " "framelines=%d\n", p->index, (unsigned long long)p->id, p->name, p->frameperiod.numerator, p->frameperiod.denominator, p->framelines); - ret=0; + ret = 0; break; } case VIDIOC_G_STD: { v4l2_std_id *id = arg; - *id = vfd->current_norm; - - dbgarg (cmd, "value=%08Lx\n", (long long unsigned) *id); + ret = 0; + /* Calls the specific handler */ + if (vfd->vidioc_g_std) + ret = vfd->vidioc_g_std(file, fh, id); + else + *id = vfd->current_norm; - ret=0; + if (!ret) + dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); break; } case VIDIOC_S_STD: { v4l2_std_id *id = arg,norm; - dbgarg (cmd, "value=%08Lx\n", (long long unsigned) *id); + dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); norm = (*id) & vfd->tvnorms; if ( vfd->tvnorms && !norm) /* Check if std is supported */ @@ -1400,6 +1325,25 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } /* ------ output switching ---------- */ + case VIDIOC_ENUMOUTPUT: + { + struct v4l2_output *p = arg; + int i = p->index; + + if (!vfd->vidioc_enum_output) + break; + memset(p, 0, sizeof(*p)); + p->index = i; + + ret = vfd->vidioc_enum_output(file, fh, p); + if (!ret) + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "audioset=0x%x, " + "modulator=%d, std=0x%08Lx\n", + p->index, p->name, p->type, p->audioset, + p->modulator, (unsigned long long)p->std); + break; + } case VIDIOC_G_OUTPUT: { unsigned int *i = arg; @@ -1425,19 +1369,19 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, /* --- controls ---------------------------------------------- */ case VIDIOC_QUERYCTRL: { - struct v4l2_queryctrl *p=arg; + struct v4l2_queryctrl *p = arg; if (!vfd->vidioc_queryctrl) break; - ret=vfd->vidioc_queryctrl(file, fh, p); - + ret = vfd->vidioc_queryctrl(file, fh, p); if (!ret) - dbgarg (cmd, "id=%d, type=%d, name=%s, " - "min/max=%d/%d," - " step=%d, default=%d, flags=0x%08x\n", - p->id,p->type,p->name,p->minimum, - p->maximum,p->step,p->default_value, - p->flags); + dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " + "step=%d, default=%d, flags=0x%08x\n", + p->id, p->type, p->name, + p->minimum, p->maximum, + p->step, p->default_value, p->flags); + else + dbgarg(cmd, "id=0x%x\n", p->id); break; } case VIDIOC_G_CTRL: @@ -1446,11 +1390,12 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, if (!vfd->vidioc_g_ctrl) break; - dbgarg(cmd, "Enum for index=%d\n", p->id); - ret=vfd->vidioc_g_ctrl(file, fh, p); + ret = vfd->vidioc_g_ctrl(file, fh, p); if (!ret) - dbgarg2 ( "id=%d, value=%d\n", p->id, p->value); + dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); + else + dbgarg(cmd, "id=0x%x\n", p->id); break; } case VIDIOC_S_CTRL: @@ -1459,20 +1404,19 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, if (!vfd->vidioc_s_ctrl) break; - dbgarg (cmd, "id=%d, value=%d\n", p->id, p->value); + dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); - ret=vfd->vidioc_s_ctrl(file, fh, p); + ret = vfd->vidioc_s_ctrl(file, fh, p); break; } case VIDIOC_G_EXT_CTRLS: { struct v4l2_ext_controls *p = arg; - if (vfd->vidioc_g_ext_ctrls) { - dbgarg(cmd, "count=%d\n", p->count); - - ret=vfd->vidioc_g_ext_ctrls(file, fh, p); - } + if (!vfd->vidioc_g_ext_ctrls) + break; + ret = vfd->vidioc_g_ext_ctrls(file, fh, p); + v4l_print_ext_ctrls(cmd, vfd, p, !ret); break; } case VIDIOC_S_EXT_CTRLS: @@ -1480,9 +1424,9 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, struct v4l2_ext_controls *p = arg; if (vfd->vidioc_s_ext_ctrls) { - dbgarg(cmd, "count=%d\n", p->count); + v4l_print_ext_ctrls(cmd, vfd, p, 1); - ret=vfd->vidioc_s_ext_ctrls(file, fh, p); + ret = vfd->vidioc_s_ext_ctrls(file, fh, p); } break; } @@ -1491,66 +1435,72 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, struct v4l2_ext_controls *p = arg; if (vfd->vidioc_try_ext_ctrls) { - dbgarg(cmd, "count=%d\n", p->count); + v4l_print_ext_ctrls(cmd, vfd, p, 1); - ret=vfd->vidioc_try_ext_ctrls(file, fh, p); + ret = vfd->vidioc_try_ext_ctrls(file, fh, p); } break; } case VIDIOC_QUERYMENU: { - struct v4l2_querymenu *p=arg; + struct v4l2_querymenu *p = arg; + if (!vfd->vidioc_querymenu) break; - ret=vfd->vidioc_querymenu(file, fh, p); + ret = vfd->vidioc_querymenu(file, fh, p); if (!ret) - dbgarg (cmd, "id=%d, index=%d, name=%s\n", - p->id,p->index,p->name); + dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", + p->id, p->index, p->name); + else + dbgarg(cmd, "id=0x%x, index=%d\n", + p->id, p->index); break; } /* --- audio ---------------------------------------------- */ case VIDIOC_ENUMAUDIO: { - struct v4l2_audio *p=arg; + struct v4l2_audio *p = arg; if (!vfd->vidioc_enumaudio) break; - dbgarg(cmd, "Enum for index=%d\n", p->index); - ret=vfd->vidioc_enumaudio(file, fh, p); + ret = vfd->vidioc_enumaudio(file, fh, p); if (!ret) - dbgarg2("index=%d, name=%s, capability=%d, " - "mode=%d\n",p->index,p->name, + dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " + "mode=0x%x\n", p->index, p->name, p->capability, p->mode); + else + dbgarg(cmd, "index=%d\n", p->index); break; } case VIDIOC_G_AUDIO: { - struct v4l2_audio *p=arg; - __u32 index=p->index; + struct v4l2_audio *p = arg; + __u32 index = p->index; if (!vfd->vidioc_g_audio) break; - memset(p,0,sizeof(*p)); - p->index=index; - dbgarg(cmd, "Get for index=%d\n", p->index); - ret=vfd->vidioc_g_audio(file, fh, p); + memset(p, 0, sizeof(*p)); + p->index = index; + ret = vfd->vidioc_g_audio(file, fh, p); if (!ret) - dbgarg2("index=%d, name=%s, capability=%d, " - "mode=%d\n",p->index, - p->name,p->capability, p->mode); + dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " + "mode=0x%x\n", p->index, + p->name, p->capability, p->mode); + else + dbgarg(cmd, "index=%d\n", p->index); break; } case VIDIOC_S_AUDIO: { - struct v4l2_audio *p=arg; + struct v4l2_audio *p = arg; if (!vfd->vidioc_s_audio) break; - dbgarg(cmd, "index=%d, name=%s, capability=%d, " - "mode=%d\n", p->index, p->name, + dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " + "mode=0x%x\n", p->index, p->name, p->capability, p->mode); - ret=vfd->vidioc_s_audio(file, fh, p); + ret = vfd->vidioc_s_audio(file, fh, p); break; } case VIDIOC_ENUMAUDOUT: @@ -1626,9 +1576,9 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, struct v4l2_crop *p=arg; if (!vfd->vidioc_g_crop) break; + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); ret=vfd->vidioc_g_crop(file, fh, p); if (!ret) { - dbgarg(cmd, "type=%d\n", p->type); dbgrect(vfd, "", &p->c); } break; @@ -1638,21 +1588,24 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, struct v4l2_crop *p=arg; if (!vfd->vidioc_s_crop) break; - dbgarg(cmd, "type=%d\n", p->type); + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); dbgrect(vfd, "", &p->c); ret=vfd->vidioc_s_crop(file, fh, p); break; } case VIDIOC_CROPCAP: { - struct v4l2_cropcap *p=arg; + struct v4l2_cropcap *p = arg; + /*FIXME: Should also show v4l2_fract pixelaspect */ if (!vfd->vidioc_cropcap) break; - dbgarg(cmd, "type=%d\n", p->type); - dbgrect(vfd, "bounds ", &p->bounds); - dbgrect(vfd, "defrect ", &p->defrect); - ret=vfd->vidioc_cropcap(file, fh, p); + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); + ret = vfd->vidioc_cropcap(file, fh, p); + if (!ret) { + dbgrect(vfd, "bounds ", &p->bounds); + dbgrect(vfd, "defrect ", &p->defrect); + } break; } case VIDIOC_G_JPEGCOMP: @@ -1695,26 +1648,26 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } case VIDIOC_ENCODER_CMD: { - struct v4l2_encoder_cmd *p=arg; + struct v4l2_encoder_cmd *p = arg; if (!vfd->vidioc_encoder_cmd) break; - ret=vfd->vidioc_encoder_cmd(file, fh, p); + memset(&p->raw, 0, sizeof(p->raw)); + ret = vfd->vidioc_encoder_cmd(file, fh, p); if (!ret) - dbgarg (cmd, "cmd=%d, flags=%d\n", - p->cmd,p->flags); + dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); break; } case VIDIOC_TRY_ENCODER_CMD: { - struct v4l2_encoder_cmd *p=arg; + struct v4l2_encoder_cmd *p = arg; if (!vfd->vidioc_try_encoder_cmd) break; - ret=vfd->vidioc_try_encoder_cmd(file, fh, p); + memset(&p->raw, 0, sizeof(p->raw)); + ret = vfd->vidioc_try_encoder_cmd(file, fh, p); if (!ret) - dbgarg (cmd, "cmd=%d, flags=%d\n", - p->cmd,p->flags); + dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); break; } case VIDIOC_G_PARM: @@ -1754,54 +1707,57 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } case VIDIOC_G_TUNER: { - struct v4l2_tuner *p=arg; - __u32 index=p->index; + struct v4l2_tuner *p = arg; + __u32 index = p->index; if (!vfd->vidioc_g_tuner) break; - memset(p,0,sizeof(*p)); - p->index=index; + memset(p, 0, sizeof(*p)); + p->index = index; - ret=vfd->vidioc_g_tuner(file, fh, p); + ret = vfd->vidioc_g_tuner(file, fh, p); if (!ret) - dbgarg (cmd, "index=%d, name=%s, type=%d, " - "capability=%d, rangelow=%d, " + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "capability=0x%x, rangelow=%d, " "rangehigh=%d, signal=%d, afc=%d, " - "rxsubchans=%d, audmode=%d\n", + "rxsubchans=0x%x, audmode=%d\n", p->index, p->name, p->type, p->capability, p->rangelow, - p->rangehigh, p->rxsubchans, - p->audmode, p->signal, p->afc); + p->rangehigh, p->signal, p->afc, + p->rxsubchans, p->audmode); break; } case VIDIOC_S_TUNER: { - struct v4l2_tuner *p=arg; + struct v4l2_tuner *p = arg; + if (!vfd->vidioc_s_tuner) break; - dbgarg (cmd, "index=%d, name=%s, type=%d, " - "capability=%d, rangelow=%d, rangehigh=%d, " - "signal=%d, afc=%d, rxsubchans=%d, " - "audmode=%d\n",p->index, p->name, p->type, - p->capability, p->rangelow,p->rangehigh, - p->rxsubchans, p->audmode, p->signal, - p->afc); - ret=vfd->vidioc_s_tuner(file, fh, p); + dbgarg(cmd, "index=%d, name=%s, type=%d, " + "capability=0x%x, rangelow=%d, " + "rangehigh=%d, signal=%d, afc=%d, " + "rxsubchans=0x%x, audmode=%d\n", + p->index, p->name, p->type, + p->capability, p->rangelow, + p->rangehigh, p->signal, p->afc, + p->rxsubchans, p->audmode); + ret = vfd->vidioc_s_tuner(file, fh, p); break; } case VIDIOC_G_FREQUENCY: { - struct v4l2_frequency *p=arg; + struct v4l2_frequency *p = arg; + if (!vfd->vidioc_g_frequency) break; - memset(p,0,sizeof(*p)); + memset(p->reserved, 0, sizeof(p->reserved)); - ret=vfd->vidioc_g_frequency(file, fh, p); + ret = vfd->vidioc_g_frequency(file, fh, p); if (!ret) - dbgarg (cmd, "tuner=%d, type=%d, frequency=%d\n", - p->tuner,p->type,p->frequency); + dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", + p->tuner, p->type, p->frequency); break; } case VIDIOC_S_FREQUENCY: @@ -1816,12 +1772,17 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } case VIDIOC_G_SLICED_VBI_CAP: { - struct v4l2_sliced_vbi_cap *p=arg; + struct v4l2_sliced_vbi_cap *p = arg; + __u32 type = p->type; + if (!vfd->vidioc_g_sliced_vbi_cap) break; - ret=vfd->vidioc_g_sliced_vbi_cap(file, fh, p); + memset(p, 0, sizeof(*p)); + p->type = type; + dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); + ret = vfd->vidioc_g_sliced_vbi_cap(file, fh, p); if (!ret) - dbgarg (cmd, "service_set=%d\n", p->service_set); + dbgarg2("service_set=%d\n", p->service_set); break; } case VIDIOC_LOG_STATUS: @@ -1868,13 +1829,23 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, ret = vfd->vidioc_default(file, fh, cmd, arg); break; } + case VIDIOC_S_HW_FREQ_SEEK: + { + struct v4l2_hw_freq_seek *p = arg; + if (!vfd->vidioc_s_hw_freq_seek) + break; + dbgarg(cmd, + "tuner=%d, type=%d, seek_upward=%d, wrap_around=%d\n", + p->tuner, p->type, p->seek_upward, p->wrap_around); + ret = vfd->vidioc_s_hw_freq_seek(file, fh, p); + break; + } } /* switch */ if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { - if (ret<0) { - printk("%s: err: on ", vfd->name); + if (ret < 0) { v4l_print_ioctl(vfd->name, cmd); - printk("\n"); + printk(KERN_CONT " error %d\n", ret); } } @@ -1976,8 +1947,82 @@ out: } EXPORT_SYMBOL(video_ioctl2); +struct index_info { + struct device *dev; + unsigned int used[VIDEO_NUM_DEVICES]; +}; + +static int __fill_index_info(struct device *cd, void *data) +{ + struct index_info *info = data; + struct video_device *vfd = container_of(cd, struct video_device, + class_dev); + + if (info->dev == vfd->dev) + info->used[vfd->index] = 1; + + return 0; +} + +/** + * assign_index - assign stream number based on parent device + * @vdev: video_device to assign index number to, vdev->dev should be assigned + * @num: -1 if auto assign, requested number otherwise + * + * + * returns -ENFILE if num is already in use, a free index number if + * successful. + */ +static int get_index(struct video_device *vdev, int num) +{ + struct index_info *info; + int i; + int ret = 0; + + if (num >= VIDEO_NUM_DEVICES) + return -EINVAL; + + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + info->dev = vdev->dev; + + ret = class_for_each_device(&video_class, NULL, info, + __fill_index_info); + + if (ret < 0) + goto out; + + if (num >= 0) { + if (!info->used[num]) + ret = num; + else + ret = -ENFILE; + + goto out; + } + + for (i = 0; i < VIDEO_NUM_DEVICES; i++) { + if (info->used[i]) + continue; + ret = i; + goto out; + } + +out: + kfree(info); + return ret; +} + static const struct file_operations video_fops; +int video_register_device(struct video_device *vfd, int type, int nr) +{ + return video_register_device_index(vfd, type, nr, -1); +} +EXPORT_SYMBOL(video_register_device); + /** * video_register_device - register video4linux devices * @vfd: video device structure we want to register @@ -2003,7 +2048,8 @@ static const struct file_operations video_fops; * %VFL_TYPE_RADIO - A radio card */ -int video_register_device(struct video_device *vfd, int type, int nr) +int video_register_device_index(struct video_device *vfd, int type, int nr, + int index) { int i=0; int base; @@ -2060,6 +2106,16 @@ int video_register_device(struct video_device *vfd, int type, int nr) } video_device[i]=vfd; vfd->minor=i; + + ret = get_index(vfd, index); + if (ret < 0) { + printk(KERN_ERR "%s: get_index failed\n", + __func__); + goto fail_minor; + } + + vfd->index = ret; + mutex_unlock(&videodev_lock); mutex_init(&vfd->lock); @@ -2093,7 +2149,7 @@ fail_minor: mutex_unlock(&videodev_lock); return ret; } -EXPORT_SYMBOL(video_register_device); +EXPORT_SYMBOL(video_register_device_index); /** * video_unregister_device - unregister a video4linux device diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index 845be1864f68..059b01c11dc1 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -39,6 +39,8 @@ #include <linux/highmem.h> #include <linux/freezer.h> +#define VIVI_MODULE_NAME "vivi" + /* Wake up at about 30 fps */ #define WAKE_NUMERATOR 30 #define WAKE_DENOMINATOR 1001 @@ -47,7 +49,7 @@ #include "font.h" #define VIVI_MAJOR_VERSION 0 -#define VIVI_MINOR_VERSION 4 +#define VIVI_MINOR_VERSION 5 #define VIVI_RELEASE 0 #define VIVI_VERSION \ KERNEL_VERSION(VIVI_MAJOR_VERSION, VIVI_MINOR_VERSION, VIVI_RELEASE) @@ -327,13 +329,14 @@ static void vivi_fillbuff(struct vivi_dev *dev, struct vivi_buffer *buf) int hmax = buf->vb.height; int wmax = buf->vb.width; struct timeval ts; - char *tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC); + char *tmpbuf; void *vbuf = videobuf_to_vmalloc(&buf->vb); - if (!tmpbuf) + if (!vbuf) return; - if (!vbuf) + tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC); + if (!tmpbuf) return; for (h = 0; h < hmax; h++) { @@ -629,7 +632,7 @@ static int vidioc_querycap(struct file *file, void *priv, return 0; } -static int vidioc_enum_fmt_cap(struct file *file, void *priv, +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (f->index > 0) @@ -640,7 +643,7 @@ static int vidioc_enum_fmt_cap(struct file *file, void *priv, return 0; } -static int vidioc_g_fmt_cap(struct file *file, void *priv, +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct vivi_fh *fh = priv; @@ -657,7 +660,7 @@ static int vidioc_g_fmt_cap(struct file *file, void *priv, return (0); } -static int vidioc_try_fmt_cap(struct file *file, void *priv, +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct vivi_fh *fh = priv; @@ -705,13 +708,13 @@ static int vidioc_try_fmt_cap(struct file *file, void *priv, } /*FIXME: This seems to be generic enough to be at videodev2 */ -static int vidioc_s_fmt_cap(struct file *file, void *priv, +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct vivi_fh *fh = priv; struct videobuf_queue *q = &fh->vb_vidq; - int ret = vidioc_try_fmt_cap(file, fh, f); + int ret = vidioc_try_fmt_vid_cap(file, fh, f); if (ret < 0) return (ret); @@ -1016,10 +1019,15 @@ static int vivi_release(void) list_del(list); dev = list_entry(list, struct vivi_dev, vivi_devlist); - if (-1 != dev->vfd->minor) + if (-1 != dev->vfd->minor) { video_unregister_device(dev->vfd); - else + printk(KERN_INFO "%s: /dev/video%d unregistered.\n", + VIVI_MODULE_NAME, dev->vfd->minor); + } else { video_device_release(dev->vfd); + printk(KERN_INFO "%s: /dev/video%d released.\n", + VIVI_MODULE_NAME, dev->vfd->minor); + } kfree(dev); } @@ -1065,10 +1073,10 @@ static struct video_device vivi_template = { .release = video_device_release, .vidioc_querycap = vidioc_querycap, - .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, - .vidioc_g_fmt_cap = vidioc_g_fmt_cap, - .vidioc_try_fmt_cap = vidioc_try_fmt_cap, - .vidioc_s_fmt_cap = vidioc_s_fmt_cap, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, .vidioc_qbuf = vidioc_qbuf, @@ -1130,6 +1138,8 @@ static int __init vivi_init(void) video_nr++; dev->vfd = vfd; + printk(KERN_INFO "%s: V4L2 device registered as /dev/video%d\n", + VIVI_MODULE_NAME, vfd->minor); } if (ret < 0) { @@ -1137,7 +1147,9 @@ static int __init vivi_init(void) printk(KERN_INFO "Error %d while loading vivi driver\n", ret); } else printk(KERN_INFO "Video Technology Magazine Virtual Video " - "Capture Board successfully loaded.\n"); + "Capture Board ver %u.%u.%u successfully loaded.\n", + (VIVI_VERSION >> 16) & 0xFF, (VIVI_VERSION >> 8) & 0xFF, + VIVI_VERSION & 0xFF); return ret; } diff --git a/drivers/media/video/zoran_card.c b/drivers/media/video/zoran_card.c index 006d48847e24..24afe81a59de 100644 --- a/drivers/media/video/zoran_card.c +++ b/drivers/media/video/zoran_card.c @@ -59,8 +59,6 @@ #include "zoran_device.h" #include "zoran_procfs.h" -#define I2C_NAME(x) (x)->name - extern const struct zoran_format zoran_formats[]; static int card[BUZ_MAX] = { -1, -1, -1, -1 }; @@ -809,7 +807,7 @@ clientunreg_unlock_and_return: return res; } -static struct i2c_algo_bit_data zoran_i2c_bit_data_template = { +static const struct i2c_algo_bit_data zoran_i2c_bit_data_template = { .setsda = zoran_i2c_setsda, .setscl = zoran_i2c_setscl, .getsda = zoran_i2c_getsda, @@ -818,24 +816,17 @@ static struct i2c_algo_bit_data zoran_i2c_bit_data_template = { .timeout = 100, }; -static struct i2c_adapter zoran_i2c_adapter_template = { - .name = "zr36057", - .id = I2C_HW_B_ZR36067, - .algo = NULL, - .client_register = zoran_i2c_client_register, - .client_unregister = zoran_i2c_client_unregister, -}; - static int zoran_register_i2c (struct zoran *zr) { memcpy(&zr->i2c_algo, &zoran_i2c_bit_data_template, sizeof(struct i2c_algo_bit_data)); zr->i2c_algo.data = zr; - memcpy(&zr->i2c_adapter, &zoran_i2c_adapter_template, - sizeof(struct i2c_adapter)); - strncpy(I2C_NAME(&zr->i2c_adapter), ZR_DEVNAME(zr), - sizeof(I2C_NAME(&zr->i2c_adapter)) - 1); + zr->i2c_adapter.id = I2C_HW_B_ZR36067; + zr->i2c_adapter.client_register = zoran_i2c_client_register; + zr->i2c_adapter.client_unregister = zoran_i2c_client_unregister; + strlcpy(zr->i2c_adapter.name, ZR_DEVNAME(zr), + sizeof(zr->i2c_adapter.name)); i2c_set_adapdata(&zr->i2c_adapter, zr); zr->i2c_adapter.algo_data = &zr->i2c_algo; zr->i2c_adapter.dev.parent = &zr->pci_dev->dev; diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c index 5394d7a5cfee..8764c352061d 100644 --- a/drivers/media/video/zoran_driver.c +++ b/drivers/media/video/zoran_driver.c @@ -94,7 +94,6 @@ V4L2_CAP_VIDEO_OVERLAY \ ) -#include <asm/byteorder.h> #if defined(CONFIG_VIDEO_V4L1_COMPAT) #define ZFMT(pal, fcc, cs) \ diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c index a0e49dc66301..485df2e36132 100644 --- a/drivers/media/video/zr364xx.c +++ b/drivers/media/video/zr364xx.c @@ -521,7 +521,7 @@ static int zr364xx_vidioc_g_ctrl(struct file *file, void *priv, return 0; } -static int zr364xx_vidioc_enum_fmt_cap(struct file *file, +static int zr364xx_vidioc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (f->index > 0) @@ -537,7 +537,7 @@ static int zr364xx_vidioc_enum_fmt_cap(struct file *file, return 0; } -static int zr364xx_vidioc_try_fmt_cap(struct file *file, void *priv, +static int zr364xx_vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct video_device *vdev = video_devdata(file); @@ -564,7 +564,7 @@ static int zr364xx_vidioc_try_fmt_cap(struct file *file, void *priv, return 0; } -static int zr364xx_vidioc_g_fmt_cap(struct file *file, void *priv, +static int zr364xx_vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct video_device *vdev = video_devdata(file); @@ -589,7 +589,7 @@ static int zr364xx_vidioc_g_fmt_cap(struct file *file, void *priv, return 0; } -static int zr364xx_vidioc_s_fmt_cap(struct file *file, void *priv, +static int zr364xx_vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct video_device *vdev = video_devdata(file); @@ -770,10 +770,10 @@ static struct video_device zr364xx_template = { .minor = -1, .vidioc_querycap = zr364xx_vidioc_querycap, - .vidioc_enum_fmt_cap = zr364xx_vidioc_enum_fmt_cap, - .vidioc_try_fmt_cap = zr364xx_vidioc_try_fmt_cap, - .vidioc_s_fmt_cap = zr364xx_vidioc_s_fmt_cap, - .vidioc_g_fmt_cap = zr364xx_vidioc_g_fmt_cap, + .vidioc_enum_fmt_vid_cap = zr364xx_vidioc_enum_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = zr364xx_vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = zr364xx_vidioc_s_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = zr364xx_vidioc_g_fmt_vid_cap, .vidioc_enum_input = zr364xx_vidioc_enum_input, .vidioc_g_input = zr364xx_vidioc_g_input, .vidioc_s_input = zr364xx_vidioc_s_input, diff --git a/drivers/memstick/host/jmb38x_ms.c b/drivers/memstick/host/jmb38x_ms.c index a054668eda16..4e3bfbcdf155 100644 --- a/drivers/memstick/host/jmb38x_ms.c +++ b/drivers/memstick/host/jmb38x_ms.c @@ -51,7 +51,7 @@ struct jmb38x_ms_host { void __iomem *addr; spinlock_t lock; int id; - char host_id[DEVICE_ID_SIZE]; + char host_id[32]; int irq; unsigned int block_pos; unsigned long timeout_jiffies; @@ -781,7 +781,7 @@ static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt) spin_lock_init(&host->lock); host->id = cnt; - snprintf(host->host_id, DEVICE_ID_SIZE, DRIVER_NAME ":slot%d", + snprintf(host->host_id, sizeof(host->host_id), DRIVER_NAME ":slot%d", host->id); host->irq = jm->pdev->irq; host->timeout_jiffies = msecs_to_jiffies(1000); diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h index a8f617447d22..e92b01746bf7 100644 --- a/drivers/message/fusion/mptbase.h +++ b/drivers/message/fusion/mptbase.h @@ -705,7 +705,7 @@ typedef struct _MPT_ADAPTER u8 fc_link_speed[2]; spinlock_t fc_rescan_work_lock; struct work_struct fc_rescan_work; - char fc_rescan_work_q_name[KOBJ_NAME_LEN]; + char fc_rescan_work_q_name[20]; struct workqueue_struct *fc_rescan_work_q; struct scsi_cmnd **ScsiLookup; spinlock_t scsi_lookup_lock; diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index 1e24ab4ac38c..86c052869327 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -1326,8 +1326,8 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* initialize workqueue */ - snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d", - sh->host_no); + snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), + "mptfc_wq_%d", sh->host_no); ioc->fc_rescan_work_q = create_singlethread_workqueue(ioc->fc_rescan_work_q_name); if (!ioc->fc_rescan_work_q) diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c index 71d1c84e2fa8..024e8a989709 100644 --- a/drivers/misc/phantom.c +++ b/drivers/misc/phantom.c @@ -394,8 +394,9 @@ static int __devinit phantom_probe(struct pci_dev *pdev, goto err_irq; } - if (IS_ERR(device_create(phantom_class, &pdev->dev, MKDEV(phantom_major, - minor), "phantom%u", minor))) + if (IS_ERR(device_create_drvdata(phantom_class, &pdev->dev, + MKDEV(phantom_major, minor), + NULL, "phantom%u", minor))) dev_err(&pdev->dev, "can't create device\n"); pci_set_drvdata(pdev, pht); diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 5d3ac512ce16..8026bb0fde55 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -27,10 +27,13 @@ static void mtd_notify_add(struct mtd_info* mtd) if (!mtd) return; - device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2), "mtd%d", mtd->index); + device_create_drvdata(mtd_class, NULL, + MKDEV(MTD_CHAR_MAJOR, mtd->index*2), + NULL, "mtd%d", mtd->index); - device_create(mtd_class, NULL, - MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1), "mtd%dro", mtd->index); + device_create_drvdata(mtd_class, NULL, + MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1), + NULL, "mtd%dro", mtd->index); } static void mtd_notify_remove(struct mtd_info* mtd) diff --git a/drivers/net/arm/at91_ether.c b/drivers/net/arm/at91_ether.c index 1e39e78f1778..71f7cec30911 100644 --- a/drivers/net/arm/at91_ether.c +++ b/drivers/net/arm/at91_ether.c @@ -677,7 +677,7 @@ static void at91ether_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo { strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); strlcpy(info->version, DRV_VERSION, sizeof(info->version)); - strlcpy(info->bus_info, dev->dev.parent->bus_id, sizeof(info->bus_info)); + strlcpy(info->bus_info, dev_name(dev->dev.parent), sizeof(info->bus_info)); } static const struct ethtool_ops at91ether_ethtool_ops = { diff --git a/drivers/net/arm/ep93xx_eth.c b/drivers/net/arm/ep93xx_eth.c index ecd8fc6146e9..7a14980f3472 100644 --- a/drivers/net/arm/ep93xx_eth.c +++ b/drivers/net/arm/ep93xx_eth.c @@ -848,7 +848,7 @@ static int ep93xx_eth_probe(struct platform_device *pdev) ep->res = request_mem_region(pdev->resource[0].start, pdev->resource[0].end - pdev->resource[0].start + 1, - pdev->dev.bus_id); + dev_name(&pdev->dev)); if (ep->res == NULL) { dev_err(&pdev->dev, "Could not reserve memory region\n"); err = -ENOMEM; diff --git a/drivers/net/arm/etherh.c b/drivers/net/arm/etherh.c index 00081d2b9cd5..f6e6d505227c 100644 --- a/drivers/net/arm/etherh.c +++ b/drivers/net/arm/etherh.c @@ -535,7 +535,7 @@ static int __init etherh_addr(char *addr, struct expansion_card *ec) if (!ecard_readchunk(&cd, ec, 0xf5, 0)) { printk(KERN_ERR "%s: unable to read podule description string\n", - ec->dev.bus_id); + dev_name(&ec->dev)); goto no_addr; } @@ -554,7 +554,7 @@ static int __init etherh_addr(char *addr, struct expansion_card *ec) } printk(KERN_ERR "%s: unable to parse MAC address: %s\n", - ec->dev.bus_id, cd.d.string); + dev_name(&ec->dev), cd.d.string); no_addr: return -ENODEV; @@ -585,7 +585,7 @@ static void etherh_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *i { strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); strlcpy(info->version, DRV_VERSION, sizeof(info->version)); - strlcpy(info->bus_info, dev->dev.parent->bus_id, + strlcpy(info->bus_info, dev_name(dev->dev.parent), sizeof(info->bus_info)); } diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h index 579bee42a5cb..8e8ebd788537 100644 --- a/drivers/net/cxgb3/common.h +++ b/drivers/net/cxgb3/common.h @@ -686,8 +686,9 @@ int t3_seeprom_write(struct adapter *adapter, u32 addr, __le32 data); int t3_seeprom_wp(struct adapter *adapter, int enable); int t3_get_tp_version(struct adapter *adapter, u32 *vers); int t3_check_tpsram_version(struct adapter *adapter, int *must_load); -int t3_check_tpsram(struct adapter *adapter, u8 *tp_ram, unsigned int size); -int t3_set_proto_sram(struct adapter *adap, u8 *data); +int t3_check_tpsram(struct adapter *adapter, const u8 *tp_ram, + unsigned int size); +int t3_set_proto_sram(struct adapter *adap, const u8 *data); int t3_read_flash(struct adapter *adapter, unsigned int addr, unsigned int nwords, u32 *data, int byte_oriented); int t3_load_fw(struct adapter *adapter, const u8 * fw_data, unsigned int size); diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c index d405a932c73a..47d51788a462 100644 --- a/drivers/net/cxgb3/t3_hw.c +++ b/drivers/net/cxgb3/t3_hw.c @@ -923,7 +923,8 @@ int t3_check_tpsram_version(struct adapter *adapter, int *must_load) * Checks if an adapter's tp sram is compatible with the driver. * Returns 0 if the versions are compatible, a negative error otherwise. */ -int t3_check_tpsram(struct adapter *adapter, u8 *tp_sram, unsigned int size) +int t3_check_tpsram(struct adapter *adapter, const u8 *tp_sram, + unsigned int size) { u32 csum; unsigned int i; @@ -2875,10 +2876,10 @@ static void ulp_config(struct adapter *adap, const struct tp_params *p) * * Write the contents of the protocol SRAM. */ -int t3_set_proto_sram(struct adapter *adap, u8 *data) +int t3_set_proto_sram(struct adapter *adap, const u8 *data) { int i; - __be32 *buf = (__be32 *)data; + const __be32 *buf = (const __be32 *)data; for (i = 0; i < PROTO_SRAM_LINES; i++) { t3_write_reg(adap, A_TP_EMBED_OP_FIELD5, be32_to_cpu(*buf++)); diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c index 6f50ed7b183f..18b471cd1447 100644 --- a/drivers/net/irda/irda-usb.c +++ b/drivers/net/irda/irda-usb.c @@ -1024,7 +1024,7 @@ static int irda_usb_is_receiving(struct irda_usb_cb *self) * Upload firmware code to SigmaTel 421X IRDA-USB dongle */ static int stir421x_fw_upload(struct irda_usb_cb *self, - unsigned char *patch, + const unsigned char *patch, const unsigned int patch_len) { int ret = -ENOMEM; @@ -1073,11 +1073,11 @@ static int stir421x_fw_upload(struct irda_usb_cb *self, */ static int stir421x_patch_device(struct irda_usb_cb *self) { - unsigned int i; - int ret; - char stir421x_fw_name[11]; - const struct firmware *fw; - unsigned char *fw_version_ptr; /* pointer to version string */ + unsigned int i; + int ret; + char stir421x_fw_name[11]; + const struct firmware *fw; + const unsigned char *fw_version_ptr; /* pointer to version string */ unsigned long fw_version = 0; /* diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index c36a03ae9bfb..860d75d81f82 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -20,7 +20,7 @@ #include <linux/errno.h> #include <linux/slab.h> #include <linux/string.h> -#include <linux/list.h> +#include <linux/rculist.h> #include <linux/notifier.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c index e0d76c75aea0..823bb6d35334 100644 --- a/drivers/net/myri10ge/myri10ge.c +++ b/drivers/net/myri10ge/myri10ge.c @@ -529,6 +529,7 @@ static int myri10ge_load_hotplug_firmware(struct myri10ge_priv *mgp, u32 * size) unsigned crc, reread_crc; const struct firmware *fw; struct device *dev = &mgp->pdev->dev; + unsigned char *fw_readback; struct mcp_gen_header *hdr; size_t hdr_offset; int status; @@ -571,9 +572,15 @@ static int myri10ge_load_hotplug_firmware(struct myri10ge_priv *mgp, u32 * size) mb(); readb(mgp->sram); } + fw_readback = vmalloc(fw->size); + if (!fw_readback) { + status = -ENOMEM; + goto abort_with_fw; + } /* corruption checking is good for parity recovery and buggy chipset */ - memcpy_fromio(fw->data, mgp->sram + MYRI10GE_FW_OFFSET, fw->size); - reread_crc = crc32(~0, fw->data, fw->size); + memcpy_fromio(fw_readback, mgp->sram + MYRI10GE_FW_OFFSET, fw->size); + reread_crc = crc32(~0, fw_readback, fw->size); + vfree(fw_readback); if (crc != reread_crc) { dev_err(dev, "CRC failed(fw-len=%u), got 0x%x (expect 0x%x)\n", (unsigned)fw->size, reread_crc, crc); diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 16a0e7de5888..e831b7e39234 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -309,11 +309,6 @@ void phy_disconnect(struct phy_device *phydev) } EXPORT_SYMBOL(phy_disconnect); -static int phy_compare_id(struct device *dev, void *data) -{ - return strcmp((char *)data, dev->bus_id) ? 0 : 1; -} - /** * phy_attach - attach a network device to a particular PHY device * @dev: network device to attach @@ -337,8 +332,7 @@ struct phy_device *phy_attach(struct net_device *dev, /* Search the list of PHY devices on the mdio bus for the * PHY with the requested name */ - d = bus_find_device(bus, NULL, (void *)bus_id, phy_compare_id); - + d = bus_find_device_by_name(bus, NULL, bus_id); if (d) { phydev = to_phy_device(d); } else { diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 1f4ca2b54a73..d77493564188 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -856,7 +856,8 @@ static int __init ppp_init(void) err = PTR_ERR(ppp_class); goto out_chrdev; } - device_create(ppp_class, NULL, MKDEV(PPP_MAJOR, 0), "ppp"); + device_create_drvdata(ppp_class, NULL, MKDEV(PPP_MAJOR, 0), + NULL, "ppp"); } out: diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c index b0fce1387eaf..bbf168031411 100644 --- a/drivers/net/wan/cosa.c +++ b/drivers/net/wan/cosa.c @@ -396,9 +396,9 @@ static int __init cosa_init(void) err = PTR_ERR(cosa_class); goto out_chrdev; } - for (i=0; i<nr_cards; i++) { - device_create(cosa_class, NULL, MKDEV(cosa_major, i), "cosa%d", i); - } + for (i = 0; i < nr_cards; i++) + device_create_drvdata(cosa_class, NULL, MKDEV(cosa_major, i), + NULL, "cosa%d", i); err = 0; goto out; diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c index 438e63ecccf1..d1acef7e0b14 100644 --- a/drivers/net/wireless/atmel.c +++ b/drivers/net/wireless/atmel.c @@ -560,7 +560,7 @@ static const struct { static void build_wpa_mib(struct atmel_private *priv); static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static void atmel_copy_to_card(struct net_device *dev, u16 dest, - unsigned char *src, u16 len); + const unsigned char *src, u16 len); static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, u16 src, u16 len); static void atmel_set_gcr(struct net_device *dev, u16 mask); @@ -3853,7 +3853,7 @@ static int reset_atmel_card(struct net_device *dev) if (priv->card_type == CARD_TYPE_EEPROM) { /* copy in firmware if needed */ const struct firmware *fw_entry = NULL; - unsigned char *fw; + const unsigned char *fw; int len = priv->firmware_length; if (!(fw = priv->firmware)) { if (priv->firmware_type == ATMEL_FW_TYPE_NONE) { @@ -4120,7 +4120,7 @@ static void atmel_writeAR(struct net_device *dev, u16 data) } static void atmel_copy_to_card(struct net_device *dev, u16 dest, - unsigned char *src, u16 len) + const unsigned char *src, u16 len) { int i; atmel_writeAR(dev, dest); diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 54280e292ea5..d075b448da94 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -122,7 +122,7 @@ static inline void if_cs_write16(struct if_cs_card *card, uint reg, u16 val) static inline void if_cs_write16_rep( struct if_cs_card *card, uint reg, - void *buf, + const void *buf, unsigned long count) { if (debug_output) diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c index 51f664bbee9d..3dd537be87d8 100644 --- a/drivers/net/wireless/libertas/if_sdio.c +++ b/drivers/net/wireless/libertas/if_sdio.c @@ -392,7 +392,7 @@ static int if_sdio_prog_helper(struct if_sdio_card *card) unsigned long timeout; u8 *chunk_buffer; u32 chunk_size; - u8 *firmware; + const u8 *firmware; size_t size; lbs_deb_enter(LBS_DEB_SDIO); @@ -508,7 +508,7 @@ static int if_sdio_prog_real(struct if_sdio_card *card) unsigned long timeout; u8 *chunk_buffer; u32 chunk_size; - u8 *firmware; + const u8 *firmware; size_t size, req_size; lbs_deb_enter(LBS_DEB_SDIO); diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c index 8032df72aaab..a25b670e8339 100644 --- a/drivers/net/wireless/libertas/if_usb.c +++ b/drivers/net/wireless/libertas/if_usb.c @@ -293,7 +293,7 @@ static void if_usb_disconnect(struct usb_interface *intf) static int if_usb_send_fw_pkt(struct if_usb_card *cardp) { struct fwdata *fwdata = cardp->ep_out_buf; - uint8_t *firmware = cardp->fw->data; + const uint8_t *firmware = cardp->fw->data; /* If we got a CRC failure on the last block, back up and retry it */ @@ -746,7 +746,7 @@ static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue) * len image length * @return 0 or -1 */ -static int check_fwfile_format(uint8_t *data, uint32_t totlen) +static int check_fwfile_format(const uint8_t *data, uint32_t totlen) { uint32_t bincmd, exit; uint32_t blksize, offset, len; diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c index 1610a7308c1d..815c095ef797 100644 --- a/drivers/net/wireless/p54/p54usb.c +++ b/drivers/net/wireless/p54/p54usb.c @@ -376,7 +376,8 @@ static int p54u_upload_firmware_3887(struct ieee80211_hw *dev) const struct firmware *fw_entry = NULL; int err, alen; u8 carry = 0; - u8 *buf, *tmp, *data; + u8 *buf, *tmp; + const u8 *data; unsigned int left, remains, block_size; struct x2_header *hdr; unsigned long timeout; @@ -523,7 +524,7 @@ static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev) void *buf; __le32 reg; unsigned int remains, offset; - u8 *data; + const u8 *data; buf = kmalloc(512, GFP_KERNEL); if (!buf) { diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 611d98320593..20dea777ee45 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -511,8 +511,8 @@ struct rt2x00lib_ops { */ int (*probe_hw) (struct rt2x00_dev *rt2x00dev); char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev); - u16 (*get_firmware_crc) (void *data, const size_t len); - int (*load_firmware) (struct rt2x00_dev *rt2x00dev, void *data, + u16 (*get_firmware_crc) (const void *data, const size_t len); + int (*load_firmware) (struct rt2x00_dev *rt2x00dev, const void *data, const size_t len); /* diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.h b/drivers/net/wireless/rt2x00/rt2x00pci.h index 9d1cdb99431c..b41967ecbf6d 100644 --- a/drivers/net/wireless/rt2x00/rt2x00pci.h +++ b/drivers/net/wireless/rt2x00/rt2x00pci.h @@ -82,7 +82,7 @@ static inline void rt2x00pci_register_write(struct rt2x00_dev *rt2x00dev, static inline void rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev, const unsigned long offset, - void *value, const u16 length) + const void *value, const u16 length) { memcpy_toio(rt2x00dev->csr.base + offset, value, length); } diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 14bc7b281659..bb78de5290cd 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -915,7 +915,7 @@ static char *rt61pci_get_firmware_name(struct rt2x00_dev *rt2x00dev) return fw_name; } -static u16 rt61pci_get_firmware_crc(void *data, const size_t len) +static u16 rt61pci_get_firmware_crc(const void *data, const size_t len) { u16 crc; @@ -932,7 +932,7 @@ static u16 rt61pci_get_firmware_crc(void *data, const size_t len) return crc; } -static int rt61pci_load_firmware(struct rt2x00_dev *rt2x00dev, void *data, +static int rt61pci_load_firmware(struct rt2x00_dev *rt2x00dev, const void *data, const size_t len) { int i; diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index fff8386e816b..d0f924669a6d 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -850,7 +850,7 @@ static char *rt73usb_get_firmware_name(struct rt2x00_dev *rt2x00dev) return FIRMWARE_RT2571; } -static u16 rt73usb_get_firmware_crc(void *data, const size_t len) +static u16 rt73usb_get_firmware_crc(const void *data, const size_t len) { u16 crc; @@ -867,13 +867,13 @@ static u16 rt73usb_get_firmware_crc(void *data, const size_t len) return crc; } -static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, void *data, +static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, const void *data, const size_t len) { unsigned int i; int status; u32 reg; - char *ptr = data; + const char *ptr = data; char *cache; int buflen; int timeout; diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c index d5c0c66188ca..78baa0f7926d 100644 --- a/drivers/net/wireless/zd1201.c +++ b/drivers/net/wireless/zd1201.c @@ -49,7 +49,7 @@ MODULE_DEVICE_TABLE(usb, zd1201_table); static int zd1201_fw_upload(struct usb_device *dev, int apfw) { const struct firmware *fw_entry; - char *data; + const char *data; unsigned long len; int err; unsigned char ret; diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 4d1ce2e7361e..7d63f8ced24b 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -2,7 +2,7 @@ # Makefile for the PCI bus specific drivers. # -obj-y += access.o bus.o probe.o remove.o pci.o quirks.o \ +obj-y += access.o bus.o probe.o remove.o pci.o quirks.o slot.o \ pci-driver.o search.o pci-sysfs.o rom.o setup-res.o obj-$(CONFIG_PROC_FS) += proc.o diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c index f8c187a763bd..93e37f0666ab 100644 --- a/drivers/pci/hotplug/acpi_pcihp.c +++ b/drivers/pci/hotplug/acpi_pcihp.c @@ -30,6 +30,7 @@ #include <linux/types.h> #include <linux/pci.h> #include <linux/pci_hotplug.h> +#include <linux/pci-acpi.h> #include <acpi/acpi.h> #include <acpi/acpi_bus.h> #include <acpi/actypes.h> @@ -299,7 +300,7 @@ free_and_return: * * @handle - the handle of the hotplug controller. */ -acpi_status acpi_run_oshp(acpi_handle handle) +static acpi_status acpi_run_oshp(acpi_handle handle) { acpi_status status; struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -322,9 +323,6 @@ acpi_status acpi_run_oshp(acpi_handle handle) kfree(string.pointer); return status; } -EXPORT_SYMBOL_GPL(acpi_run_oshp); - - /* acpi_get_hp_params_from_firmware * @@ -374,6 +372,85 @@ acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus, } EXPORT_SYMBOL_GPL(acpi_get_hp_params_from_firmware); +/** + * acpi_get_hp_hw_control_from_firmware + * @dev: the pci_dev of the bridge that has a hotplug controller + * @flags: requested control bits for _OSC + * + * Attempt to take hotplug control from firmware. + */ +int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags) +{ + acpi_status status; + acpi_handle chandle, handle = DEVICE_ACPI_HANDLE(&(dev->dev)); + struct pci_dev *pdev = dev; + struct pci_bus *parent; + struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL }; + + flags &= (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | + OSC_SHPC_NATIVE_HP_CONTROL | + OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); + if (!flags) { + err("Invalid flags %u specified!\n", flags); + return -EINVAL; + } + + /* + * Per PCI firmware specification, we should run the ACPI _OSC + * method to get control of hotplug hardware before using it. If + * an _OSC is missing, we look for an OSHP to do the same thing. + * To handle different BIOS behavior, we look for _OSC and OSHP + * within the scope of the hotplug controller and its parents, + * upto the host bridge under which this controller exists. + */ + while (!handle) { + /* + * This hotplug controller was not listed in the ACPI name + * space at all. Try to get acpi handle of parent pci bus. + */ + if (!pdev || !pdev->bus->parent) + break; + parent = pdev->bus->parent; + dbg("Could not find %s in acpi namespace, trying parent\n", + pci_name(pdev)); + if (!parent->self) + /* Parent must be a host bridge */ + handle = acpi_get_pci_rootbridge_handle( + pci_domain_nr(parent), + parent->number); + else + handle = DEVICE_ACPI_HANDLE(&(parent->self->dev)); + pdev = parent->self; + } + + while (handle) { + acpi_get_name(handle, ACPI_FULL_PATHNAME, &string); + dbg("Trying to get hotplug control for %s \n", + (char *)string.pointer); + status = pci_osc_control_set(handle, flags); + if (status == AE_NOT_FOUND) + status = acpi_run_oshp(handle); + if (ACPI_SUCCESS(status)) { + dbg("Gained control for hotplug HW for pci %s (%s)\n", + pci_name(dev), (char *)string.pointer); + kfree(string.pointer); + return 0; + } + if (acpi_root_bridge(handle)) + break; + chandle = handle; + status = acpi_get_parent(chandle, &handle); + if (ACPI_FAILURE(status)) + break; + } + + dbg("Cannot get control of hotplug hardware for pci %s\n", + pci_name(dev)); + + kfree(string.pointer); + return -ENODEV; +} +EXPORT_SYMBOL(acpi_get_hp_hw_control_from_firmware); /* acpi_root_bridge - check to see if this acpi object is a root bridge * diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index 7a29164d4b32..5a58b075dd8d 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h @@ -36,7 +36,7 @@ #define _ACPIPHP_H #include <linux/acpi.h> -#include <linux/kobject.h> /* for KOBJ_NAME_LEN */ +#include <linux/kobject.h> #include <linux/mutex.h> #include <linux/pci_hotplug.h> @@ -51,7 +51,7 @@ #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) /* name size which is used for entries in pcihpfs */ -#define SLOT_NAME_SIZE KOBJ_NAME_LEN /* {_SUN} */ +#define SLOT_NAME_SIZE 20 /* {_SUN} */ struct acpiphp_bridge; struct acpiphp_slot; @@ -215,7 +215,6 @@ extern u8 acpiphp_get_power_status (struct acpiphp_slot *slot); extern u8 acpiphp_get_attention_status (struct acpiphp_slot *slot); extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot); extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot); -extern u32 acpiphp_get_address (struct acpiphp_slot *slot); /* variables */ extern int acpiphp_debug; diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c index 7af68ba27903..0e496e866a84 100644 --- a/drivers/pci/hotplug/acpiphp_core.c +++ b/drivers/pci/hotplug/acpiphp_core.c @@ -70,7 +70,6 @@ static int disable_slot (struct hotplug_slot *slot); static int set_attention_status (struct hotplug_slot *slot, u8 value); static int get_power_status (struct hotplug_slot *slot, u8 *value); static int get_attention_status (struct hotplug_slot *slot, u8 *value); -static int get_address (struct hotplug_slot *slot, u32 *value); static int get_latch_status (struct hotplug_slot *slot, u8 *value); static int get_adapter_status (struct hotplug_slot *slot, u8 *value); @@ -83,7 +82,6 @@ static struct hotplug_slot_ops acpi_hotplug_slot_ops = { .get_attention_status = get_attention_status, .get_latch_status = get_latch_status, .get_adapter_status = get_adapter_status, - .get_address = get_address, }; @@ -274,23 +272,6 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value) return 0; } - -/** - * get_address - get pci address of a slot - * @hotplug_slot: slot to get status - * @value: pointer to struct pci_busdev (seg, bus, dev) - */ -static int get_address(struct hotplug_slot *hotplug_slot, u32 *value) -{ - struct slot *slot = hotplug_slot->private; - - dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); - - *value = acpiphp_get_address(slot->acpi_slot); - - return 0; -} - static int __init init_acpi(void) { int retval; @@ -357,7 +338,11 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot) acpiphp_slot->slot = slot; snprintf(slot->name, sizeof(slot->name), "%u", slot->acpi_slot->sun); - retval = pci_hp_register(slot->hotplug_slot); + retval = pci_hp_register(slot->hotplug_slot, + acpiphp_slot->bridge->pci_bus, + acpiphp_slot->device); + if (retval == -EBUSY) + goto error_hpslot; if (retval) { err("pci_hp_register failed with error %d\n", retval); goto error_hpslot; diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 648596d469f6..9342c848db29 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -258,7 +258,12 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv) bridge->pci_bus->number, slot->device); retval = acpiphp_register_hotplug_slot(slot); if (retval) { - warn("acpiphp_register_hotplug_slot failed(err code = 0x%x)\n", retval); + if (retval == -EBUSY) + warn("Slot %d already registered by another " + "hotplug driver\n", slot->sun); + else + warn("acpiphp_register_hotplug_slot failed " + "(err code = 0x%x)\n", retval); goto err_exit; } } @@ -1867,19 +1872,3 @@ u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot) return (sta == 0) ? 0 : 1; } - - -/* - * pci address (seg/bus/dev) - */ -u32 acpiphp_get_address(struct acpiphp_slot *slot) -{ - u32 address; - struct pci_bus *pci_bus = slot->bridge->pci_bus; - - address = (pci_domain_nr(pci_bus) << 16) | - (pci_bus->number << 8) | - slot->device; - - return address; -} diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c index ede9051fdb5d..2b7c45e39370 100644 --- a/drivers/pci/hotplug/acpiphp_ibm.c +++ b/drivers/pci/hotplug/acpiphp_ibm.c @@ -33,8 +33,10 @@ #include <linux/kobject.h> #include <asm/uaccess.h> #include <linux/moduleparam.h> +#include <linux/pci.h> #include "acpiphp.h" +#include "../pci.h" #define DRIVER_VERSION "1.0.1" #define DRIVER_AUTHOR "Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>" @@ -430,7 +432,7 @@ static int __init ibm_acpiphp_init(void) int retval = 0; acpi_status status; struct acpi_device *device; - struct kobject *sysdir = &pci_hotplug_slots_kset->kobj; + struct kobject *sysdir = &pci_slots_kset->kobj; dbg("%s\n", __func__); @@ -477,7 +479,7 @@ init_return: static void __exit ibm_acpiphp_exit(void) { acpi_status status; - struct kobject *sysdir = &pci_hotplug_slots_kset->kobj; + struct kobject *sysdir = &pci_slots_kset->kobj; dbg("%s\n", __func__); diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c index d8a6b80ab42a..935947991dc9 100644 --- a/drivers/pci/hotplug/cpci_hotplug_core.c +++ b/drivers/pci/hotplug/cpci_hotplug_core.c @@ -285,7 +285,7 @@ cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last) info->attention_status = cpci_get_attention_status(slot); dbg("registering slot %s", slot->hotplug_slot->name); - status = pci_hp_register(slot->hotplug_slot); + status = pci_hp_register(slot->hotplug_slot, bus, i); if (status) { err("pci_hp_register failed with error %d", status); goto error_name; diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index 36b115b27b0b..54defec51d08 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -434,7 +434,9 @@ static int ctrl_slot_setup(struct controller *ctrl, slot->bus, slot->device, slot->number, ctrl->slot_device_offset, slot_number); - result = pci_hp_register(hotplug_slot); + result = pci_hp_register(hotplug_slot, + ctrl->pci_dev->subordinate, + slot->device); if (result) { err("pci_hp_register failed with error %d\n", result); goto error_name; diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c index 7e9a827c2687..40337a06c18a 100644 --- a/drivers/pci/hotplug/fakephp.c +++ b/drivers/pci/hotplug/fakephp.c @@ -66,6 +66,7 @@ struct dummy_slot { struct pci_dev *dev; struct work_struct remove_work; unsigned long removed; + char name[8]; }; static int debug; @@ -100,6 +101,7 @@ static int add_slot(struct pci_dev *dev) struct dummy_slot *dslot; struct hotplug_slot *slot; int retval = -ENOMEM; + static int count = 1; slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); if (!slot) @@ -113,18 +115,18 @@ static int add_slot(struct pci_dev *dev) slot->info->max_bus_speed = PCI_SPEED_UNKNOWN; slot->info->cur_bus_speed = PCI_SPEED_UNKNOWN; - slot->name = &dev->dev.bus_id[0]; - dbg("slot->name = %s\n", slot->name); - dslot = kzalloc(sizeof(struct dummy_slot), GFP_KERNEL); if (!dslot) goto error_info; + slot->name = dslot->name; + snprintf(slot->name, sizeof(dslot->name), "fake%d", count++); + dbg("slot->name = %s\n", slot->name); slot->ops = &dummy_hotplug_slot_ops; slot->release = &dummy_release; slot->private = dslot; - retval = pci_hp_register(slot); + retval = pci_hp_register(slot, dev->bus, PCI_SLOT(dev->devfn)); if (retval) { err("pci_hp_register failed with error %d\n", retval); goto error_dslot; @@ -148,17 +150,17 @@ error: static int __init pci_scan_buses(void) { struct pci_dev *dev = NULL; - int retval = 0; + int lastslot = 0; while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) { - retval = add_slot(dev); - if (retval) { - pci_dev_put(dev); - break; - } + if (PCI_FUNC(dev->devfn) > 0 && + lastslot == PCI_SLOT(dev->devfn)) + continue; + lastslot = PCI_SLOT(dev->devfn); + add_slot(dev); } - return retval; + return 0; } static void remove_slot(struct dummy_slot *dslot) @@ -296,23 +298,9 @@ static int enable_slot(struct hotplug_slot *hotplug_slot) return 0; } -/* find the hotplug_slot for the pci_dev */ -static struct hotplug_slot *get_slot_from_dev(struct pci_dev *dev) -{ - struct dummy_slot *dslot; - - list_for_each_entry(dslot, &slot_list, node) { - if (dslot->dev == dev) - return dslot->slot; - } - return NULL; -} - - static int disable_slot(struct hotplug_slot *slot) { struct dummy_slot *dslot; - struct hotplug_slot *hslot; struct pci_dev *dev; int func; @@ -322,41 +310,27 @@ static int disable_slot(struct hotplug_slot *slot) dbg("%s - physical_slot = %s\n", __func__, slot->name); - /* don't disable bridged devices just yet, we can't handle them easily... */ - if (dslot->dev->subordinate) { - err("Can't remove PCI devices with other PCI devices behind it yet.\n"); - return -ENODEV; - } - if (test_and_set_bit(0, &dslot->removed)) { - dbg("Slot already scheduled for removal\n"); - return -ENODEV; - } - /* search for subfunctions and disable them first */ - if (!(dslot->dev->devfn & 7)) { - for (func = 1; func < 8; func++) { - dev = pci_get_slot(dslot->dev->bus, - dslot->dev->devfn + func); - if (dev) { - hslot = get_slot_from_dev(dev); - if (hslot) - disable_slot(hslot); - else { - err("Hotplug slot not found for subfunction of PCI device\n"); - return -ENODEV; - } - pci_dev_put(dev); - } else - dbg("No device in slot found\n"); + for (func = 7; func >= 0; func--) { + dev = pci_get_slot(dslot->dev->bus, dslot->dev->devfn + func); + if (!dev) + continue; + + if (test_and_set_bit(0, &dslot->removed)) { + dbg("Slot already scheduled for removal\n"); + return -ENODEV; } - } - /* remove the device from the pci core */ - pci_remove_bus_device(dslot->dev); + /* queue work item to blow away this sysfs entry and other + * parts. + */ + INIT_WORK(&dslot->remove_work, remove_slot_worker); + queue_work(dummyphp_wq, &dslot->remove_work); - /* queue work item to blow away this sysfs entry and other parts. */ - INIT_WORK(&dslot->remove_work, remove_slot_worker); - queue_work(dummyphp_wq, &dslot->remove_work); + /* blow away this sysfs entry and other parts. */ + remove_slot(dslot); + pci_dev_put(dev); + } return 0; } diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c index dca7efc14be2..8467d0287325 100644 --- a/drivers/pci/hotplug/ibmphp_ebda.c +++ b/drivers/pci/hotplug/ibmphp_ebda.c @@ -1001,7 +1001,8 @@ static int __init ebda_rsrc_controller (void) tmp_slot = list_entry (list, struct slot, ibm_slot_list); snprintf (tmp_slot->hotplug_slot->name, 30, "%s", create_file_name (tmp_slot)); - pci_hp_register (tmp_slot->hotplug_slot); + pci_hp_register(tmp_slot->hotplug_slot, + pci_find_bus(0, tmp_slot->bus), tmp_slot->device); } print_ebda_hpc (); diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c index a11021e8ce37..b3b2d8cf4370 100644 --- a/drivers/pci/hotplug/pci_hotplug_core.c +++ b/drivers/pci/hotplug/pci_hotplug_core.c @@ -40,6 +40,7 @@ #include <linux/pci.h> #include <linux/pci_hotplug.h> #include <asm/uaccess.h> +#include "../pci.h" #define MY_NAME "pci_hotplug" @@ -60,41 +61,7 @@ static int debug; ////////////////////////////////////////////////////////////////// static LIST_HEAD(pci_hotplug_slot_list); - -struct kset *pci_hotplug_slots_kset; - -static ssize_t hotplug_slot_attr_show(struct kobject *kobj, - struct attribute *attr, char *buf) -{ - struct hotplug_slot *slot = to_hotplug_slot(kobj); - struct hotplug_slot_attribute *attribute = to_hotplug_attr(attr); - return attribute->show ? attribute->show(slot, buf) : -EIO; -} - -static ssize_t hotplug_slot_attr_store(struct kobject *kobj, - struct attribute *attr, const char *buf, size_t len) -{ - struct hotplug_slot *slot = to_hotplug_slot(kobj); - struct hotplug_slot_attribute *attribute = to_hotplug_attr(attr); - return attribute->store ? attribute->store(slot, buf, len) : -EIO; -} - -static struct sysfs_ops hotplug_slot_sysfs_ops = { - .show = hotplug_slot_attr_show, - .store = hotplug_slot_attr_store, -}; - -static void hotplug_slot_release(struct kobject *kobj) -{ - struct hotplug_slot *slot = to_hotplug_slot(kobj); - if (slot->release) - slot->release(slot); -} - -static struct kobj_type hotplug_slot_ktype = { - .sysfs_ops = &hotplug_slot_sysfs_ops, - .release = &hotplug_slot_release, -}; +static DEFINE_SPINLOCK(pci_hotplug_slot_list_lock); /* these strings match up with the values in pci_bus_speed */ static char *pci_bus_speed_strings[] = { @@ -149,16 +116,15 @@ GET_STATUS(power_status, u8) GET_STATUS(attention_status, u8) GET_STATUS(latch_status, u8) GET_STATUS(adapter_status, u8) -GET_STATUS(address, u32) GET_STATUS(max_bus_speed, enum pci_bus_speed) GET_STATUS(cur_bus_speed, enum pci_bus_speed) -static ssize_t power_read_file (struct hotplug_slot *slot, char *buf) +static ssize_t power_read_file(struct pci_slot *slot, char *buf) { int retval; u8 value; - retval = get_power_status (slot, &value); + retval = get_power_status(slot->hotplug, &value); if (retval) goto exit; retval = sprintf (buf, "%d\n", value); @@ -166,9 +132,10 @@ exit: return retval; } -static ssize_t power_write_file (struct hotplug_slot *slot, const char *buf, +static ssize_t power_write_file(struct pci_slot *pci_slot, const char *buf, size_t count) { + struct hotplug_slot *slot = pci_slot->hotplug; unsigned long lpower; u8 power; int retval = 0; @@ -204,29 +171,30 @@ exit: return count; } -static struct hotplug_slot_attribute hotplug_slot_attr_power = { +static struct pci_slot_attribute hotplug_slot_attr_power = { .attr = {.name = "power", .mode = S_IFREG | S_IRUGO | S_IWUSR}, .show = power_read_file, .store = power_write_file }; -static ssize_t attention_read_file (struct hotplug_slot *slot, char *buf) +static ssize_t attention_read_file(struct pci_slot *slot, char *buf) { int retval; u8 value; - retval = get_attention_status (slot, &value); + retval = get_attention_status(slot->hotplug, &value); if (retval) goto exit; - retval = sprintf (buf, "%d\n", value); + retval = sprintf(buf, "%d\n", value); exit: return retval; } -static ssize_t attention_write_file (struct hotplug_slot *slot, const char *buf, +static ssize_t attention_write_file(struct pci_slot *slot, const char *buf, size_t count) { + struct hotplug_slot_ops *ops = slot->hotplug->ops; unsigned long lattention; u8 attention; int retval = 0; @@ -235,13 +203,13 @@ static ssize_t attention_write_file (struct hotplug_slot *slot, const char *buf, attention = (u8)(lattention & 0xff); dbg (" - attention = %d\n", attention); - if (!try_module_get(slot->ops->owner)) { + if (!try_module_get(ops->owner)) { retval = -ENODEV; goto exit; } - if (slot->ops->set_attention_status) - retval = slot->ops->set_attention_status(slot, attention); - module_put(slot->ops->owner); + if (ops->set_attention_status) + retval = ops->set_attention_status(slot->hotplug, attention); + module_put(ops->owner); exit: if (retval) @@ -249,18 +217,18 @@ exit: return count; } -static struct hotplug_slot_attribute hotplug_slot_attr_attention = { +static struct pci_slot_attribute hotplug_slot_attr_attention = { .attr = {.name = "attention", .mode = S_IFREG | S_IRUGO | S_IWUSR}, .show = attention_read_file, .store = attention_write_file }; -static ssize_t latch_read_file (struct hotplug_slot *slot, char *buf) +static ssize_t latch_read_file(struct pci_slot *slot, char *buf) { int retval; u8 value; - retval = get_latch_status (slot, &value); + retval = get_latch_status(slot->hotplug, &value); if (retval) goto exit; retval = sprintf (buf, "%d\n", value); @@ -269,17 +237,17 @@ exit: return retval; } -static struct hotplug_slot_attribute hotplug_slot_attr_latch = { +static struct pci_slot_attribute hotplug_slot_attr_latch = { .attr = {.name = "latch", .mode = S_IFREG | S_IRUGO}, .show = latch_read_file, }; -static ssize_t presence_read_file (struct hotplug_slot *slot, char *buf) +static ssize_t presence_read_file(struct pci_slot *slot, char *buf) { int retval; u8 value; - retval = get_adapter_status (slot, &value); + retval = get_adapter_status(slot->hotplug, &value); if (retval) goto exit; retval = sprintf (buf, "%d\n", value); @@ -288,42 +256,20 @@ exit: return retval; } -static struct hotplug_slot_attribute hotplug_slot_attr_presence = { +static struct pci_slot_attribute hotplug_slot_attr_presence = { .attr = {.name = "adapter", .mode = S_IFREG | S_IRUGO}, .show = presence_read_file, }; -static ssize_t address_read_file (struct hotplug_slot *slot, char *buf) -{ - int retval; - u32 address; - - retval = get_address (slot, &address); - if (retval) - goto exit; - retval = sprintf (buf, "%04x:%02x:%02x\n", - (address >> 16) & 0xffff, - (address >> 8) & 0xff, - address & 0xff); - -exit: - return retval; -} - -static struct hotplug_slot_attribute hotplug_slot_attr_address = { - .attr = {.name = "address", .mode = S_IFREG | S_IRUGO}, - .show = address_read_file, -}; - static char *unknown_speed = "Unknown bus speed"; -static ssize_t max_bus_speed_read_file (struct hotplug_slot *slot, char *buf) +static ssize_t max_bus_speed_read_file(struct pci_slot *slot, char *buf) { char *speed_string; int retval; enum pci_bus_speed value; - retval = get_max_bus_speed (slot, &value); + retval = get_max_bus_speed(slot->hotplug, &value); if (retval) goto exit; @@ -338,18 +284,18 @@ exit: return retval; } -static struct hotplug_slot_attribute hotplug_slot_attr_max_bus_speed = { +static struct pci_slot_attribute hotplug_slot_attr_max_bus_speed = { .attr = {.name = "max_bus_speed", .mode = S_IFREG | S_IRUGO}, .show = max_bus_speed_read_file, }; -static ssize_t cur_bus_speed_read_file (struct hotplug_slot *slot, char *buf) +static ssize_t cur_bus_speed_read_file(struct pci_slot *slot, char *buf) { char *speed_string; int retval; enum pci_bus_speed value; - retval = get_cur_bus_speed (slot, &value); + retval = get_cur_bus_speed(slot->hotplug, &value); if (retval) goto exit; @@ -364,14 +310,15 @@ exit: return retval; } -static struct hotplug_slot_attribute hotplug_slot_attr_cur_bus_speed = { +static struct pci_slot_attribute hotplug_slot_attr_cur_bus_speed = { .attr = {.name = "cur_bus_speed", .mode = S_IFREG | S_IRUGO}, .show = cur_bus_speed_read_file, }; -static ssize_t test_write_file (struct hotplug_slot *slot, const char *buf, +static ssize_t test_write_file(struct pci_slot *pci_slot, const char *buf, size_t count) { + struct hotplug_slot *slot = pci_slot->hotplug; unsigned long ltest; u32 test; int retval = 0; @@ -394,13 +341,14 @@ exit: return count; } -static struct hotplug_slot_attribute hotplug_slot_attr_test = { +static struct pci_slot_attribute hotplug_slot_attr_test = { .attr = {.name = "test", .mode = S_IFREG | S_IRUGO | S_IWUSR}, .store = test_write_file }; -static int has_power_file (struct hotplug_slot *slot) +static int has_power_file(struct pci_slot *pci_slot) { + struct hotplug_slot *slot = pci_slot->hotplug; if ((!slot) || (!slot->ops)) return -ENODEV; if ((slot->ops->enable_slot) || @@ -410,8 +358,9 @@ static int has_power_file (struct hotplug_slot *slot) return -ENOENT; } -static int has_attention_file (struct hotplug_slot *slot) +static int has_attention_file(struct pci_slot *pci_slot) { + struct hotplug_slot *slot = pci_slot->hotplug; if ((!slot) || (!slot->ops)) return -ENODEV; if ((slot->ops->set_attention_status) || @@ -420,8 +369,9 @@ static int has_attention_file (struct hotplug_slot *slot) return -ENOENT; } -static int has_latch_file (struct hotplug_slot *slot) +static int has_latch_file(struct pci_slot *pci_slot) { + struct hotplug_slot *slot = pci_slot->hotplug; if ((!slot) || (!slot->ops)) return -ENODEV; if (slot->ops->get_latch_status) @@ -429,8 +379,9 @@ static int has_latch_file (struct hotplug_slot *slot) return -ENOENT; } -static int has_adapter_file (struct hotplug_slot *slot) +static int has_adapter_file(struct pci_slot *pci_slot) { + struct hotplug_slot *slot = pci_slot->hotplug; if ((!slot) || (!slot->ops)) return -ENODEV; if (slot->ops->get_adapter_status) @@ -438,17 +389,9 @@ static int has_adapter_file (struct hotplug_slot *slot) return -ENOENT; } -static int has_address_file (struct hotplug_slot *slot) -{ - if ((!slot) || (!slot->ops)) - return -ENODEV; - if (slot->ops->get_address) - return 0; - return -ENOENT; -} - -static int has_max_bus_speed_file (struct hotplug_slot *slot) +static int has_max_bus_speed_file(struct pci_slot *pci_slot) { + struct hotplug_slot *slot = pci_slot->hotplug; if ((!slot) || (!slot->ops)) return -ENODEV; if (slot->ops->get_max_bus_speed) @@ -456,8 +399,9 @@ static int has_max_bus_speed_file (struct hotplug_slot *slot) return -ENOENT; } -static int has_cur_bus_speed_file (struct hotplug_slot *slot) +static int has_cur_bus_speed_file(struct pci_slot *pci_slot) { + struct hotplug_slot *slot = pci_slot->hotplug; if ((!slot) || (!slot->ops)) return -ENODEV; if (slot->ops->get_cur_bus_speed) @@ -465,8 +409,9 @@ static int has_cur_bus_speed_file (struct hotplug_slot *slot) return -ENOENT; } -static int has_test_file (struct hotplug_slot *slot) +static int has_test_file(struct pci_slot *pci_slot) { + struct hotplug_slot *slot = pci_slot->hotplug; if ((!slot) || (!slot->ops)) return -ENODEV; if (slot->ops->hardware_test) @@ -474,7 +419,7 @@ static int has_test_file (struct hotplug_slot *slot) return -ENOENT; } -static int fs_add_slot (struct hotplug_slot *slot) +static int fs_add_slot(struct pci_slot *slot) { int retval = 0; @@ -505,13 +450,6 @@ static int fs_add_slot (struct hotplug_slot *slot) goto exit_adapter; } - if (has_address_file(slot) == 0) { - retval = sysfs_create_file(&slot->kobj, - &hotplug_slot_attr_address.attr); - if (retval) - goto exit_address; - } - if (has_max_bus_speed_file(slot) == 0) { retval = sysfs_create_file(&slot->kobj, &hotplug_slot_attr_max_bus_speed.attr); @@ -544,10 +482,6 @@ exit_cur_speed: sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_max_bus_speed.attr); exit_max_speed: - if (has_address_file(slot) == 0) - sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_address.attr); - -exit_address: if (has_adapter_file(slot) == 0) sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_presence.attr); @@ -567,7 +501,7 @@ exit: return retval; } -static void fs_remove_slot (struct hotplug_slot *slot) +static void fs_remove_slot(struct pci_slot *slot) { if (has_power_file(slot) == 0) sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_power.attr); @@ -581,9 +515,6 @@ static void fs_remove_slot (struct hotplug_slot *slot) if (has_adapter_file(slot) == 0) sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_presence.attr); - if (has_address_file(slot) == 0) - sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_address.attr); - if (has_max_bus_speed_file(slot) == 0) sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_max_bus_speed.attr); @@ -599,12 +530,16 @@ static struct hotplug_slot *get_slot_from_name (const char *name) struct hotplug_slot *slot; struct list_head *tmp; + spin_lock(&pci_hotplug_slot_list_lock); list_for_each (tmp, &pci_hotplug_slot_list) { slot = list_entry (tmp, struct hotplug_slot, slot_list); if (strcmp(slot->name, name) == 0) - return slot; + goto out; } - return NULL; + slot = NULL; +out: + spin_unlock(&pci_hotplug_slot_list_lock); + return slot; } /** @@ -616,9 +551,10 @@ static struct hotplug_slot *get_slot_from_name (const char *name) * * Returns 0 if successful, anything else for an error. */ -int pci_hp_register (struct hotplug_slot *slot) +int pci_hp_register(struct hotplug_slot *slot, struct pci_bus *bus, int slot_nr) { int result; + struct pci_slot *pci_slot; struct hotplug_slot *tmp; if (slot == NULL) @@ -636,19 +572,44 @@ int pci_hp_register (struct hotplug_slot *slot) if (tmp) return -EEXIST; - slot->kobj.kset = pci_hotplug_slots_kset; - result = kobject_init_and_add(&slot->kobj, &hotplug_slot_ktype, NULL, - "%s", slot->name); - if (result) { - err("Unable to register kobject '%s'", slot->name); - return -EINVAL; + /* + * No problems if we call this interface from both ACPI_PCI_SLOT + * driver and call it here again. If we've already created the + * pci_slot, the interface will simply bump the refcount. + */ + pci_slot = pci_create_slot(bus, slot_nr, slot->name); + if (IS_ERR(pci_slot)) + return PTR_ERR(pci_slot); + + if (pci_slot->hotplug) { + dbg("%s: already claimed\n", __func__); + pci_destroy_slot(pci_slot); + return -EBUSY; } - list_add (&slot->slot_list, &pci_hotplug_slot_list); + slot->pci_slot = pci_slot; + pci_slot->hotplug = slot; + + /* + * Allow pcihp drivers to override the ACPI_PCI_SLOT name. + */ + if (strcmp(kobject_name(&pci_slot->kobj), slot->name)) { + result = kobject_rename(&pci_slot->kobj, slot->name); + if (result) { + pci_destroy_slot(pci_slot); + return result; + } + } + + spin_lock(&pci_hotplug_slot_list_lock); + list_add(&slot->slot_list, &pci_hotplug_slot_list); + spin_unlock(&pci_hotplug_slot_list_lock); + + result = fs_add_slot(pci_slot); + kobject_uevent(&pci_slot->kobj, KOBJ_ADD); + dbg("Added slot %s to the list\n", slot->name); + - result = fs_add_slot (slot); - kobject_uevent(&slot->kobj, KOBJ_ADD); - dbg ("Added slot %s to the list\n", slot->name); return result; } @@ -661,22 +622,30 @@ int pci_hp_register (struct hotplug_slot *slot) * * Returns 0 if successful, anything else for an error. */ -int pci_hp_deregister (struct hotplug_slot *slot) +int pci_hp_deregister(struct hotplug_slot *hotplug) { struct hotplug_slot *temp; + struct pci_slot *slot; - if (slot == NULL) + if (!hotplug) return -ENODEV; - temp = get_slot_from_name (slot->name); - if (temp != slot) { + temp = get_slot_from_name(hotplug->name); + if (temp != hotplug) return -ENODEV; - } - list_del (&slot->slot_list); - fs_remove_slot (slot); - dbg ("Removed slot %s from the list\n", slot->name); - kobject_put(&slot->kobj); + spin_lock(&pci_hotplug_slot_list_lock); + list_del(&hotplug->slot_list); + spin_unlock(&pci_hotplug_slot_list_lock); + + slot = hotplug->pci_slot; + fs_remove_slot(slot); + dbg("Removed slot %s from the list\n", hotplug->name); + + hotplug->release(hotplug); + slot->hotplug = NULL; + pci_destroy_slot(slot); + return 0; } @@ -690,13 +659,15 @@ int pci_hp_deregister (struct hotplug_slot *slot) * * Returns 0 if successful, anything else for an error. */ -int __must_check pci_hp_change_slot_info(struct hotplug_slot *slot, +int __must_check pci_hp_change_slot_info(struct hotplug_slot *hotplug, struct hotplug_slot_info *info) { - if ((slot == NULL) || (info == NULL)) + struct pci_slot *slot; + if (!hotplug || !info) return -ENODEV; + slot = hotplug->pci_slot; - memcpy (slot->info, info, sizeof (struct hotplug_slot_info)); + memcpy(hotplug->info, info, sizeof(struct hotplug_slot_info)); return 0; } @@ -704,36 +675,22 @@ int __must_check pci_hp_change_slot_info(struct hotplug_slot *slot, static int __init pci_hotplug_init (void) { int result; - struct kset *pci_bus_kset; - pci_bus_kset = bus_get_kset(&pci_bus_type); - - pci_hotplug_slots_kset = kset_create_and_add("slots", NULL, - &pci_bus_kset->kobj); - if (!pci_hotplug_slots_kset) { - result = -ENOMEM; - err("Register subsys error\n"); - goto exit; - } result = cpci_hotplug_init(debug); if (result) { err ("cpci_hotplug_init with error %d\n", result); - goto err_subsys; + goto err_cpci; } info (DRIVER_DESC " version: " DRIVER_VERSION "\n"); - goto exit; -err_subsys: - kset_unregister(pci_hotplug_slots_kset); -exit: +err_cpci: return result; } static void __exit pci_hotplug_exit (void) { cpci_hotplug_exit(); - kset_unregister(pci_hotplug_slots_kset); } module_init(pci_hotplug_init); @@ -745,7 +702,6 @@ MODULE_LICENSE("GPL"); module_param(debug, bool, 0644); MODULE_PARM_DESC(debug, "Debugging mode enabled or not"); -EXPORT_SYMBOL_GPL(pci_hotplug_slots_kset); EXPORT_SYMBOL_GPL(pci_hp_register); EXPORT_SYMBOL_GPL(pci_hp_deregister); EXPORT_SYMBOL_GPL(pci_hp_change_slot_info); diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 79c9ddaad3fb..8492fab800cc 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -202,8 +202,13 @@ struct hpc_ops { #include <acpi/actypes.h> #include <linux/pci-acpi.h> -#define pciehp_get_hp_hw_control_from_firmware(dev) \ - pciehp_acpi_get_hp_hw_control_from_firmware(dev) +static inline int pciehp_get_hp_hw_control_from_firmware(struct pci_dev *dev) +{ + u32 flags = (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | + OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); + return acpi_get_hp_hw_control_from_firmware(dev, flags); +} + static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev, struct hotplug_params *hpp) { diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index 48a2ed378914..7b21c86e4bff 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -41,7 +41,7 @@ int pciehp_debug; int pciehp_poll_mode; int pciehp_poll_time; int pciehp_force; -int pciehp_slot_with_bus; +static int pciehp_slot_with_bus; struct workqueue_struct *pciehp_wq; #define DRIVER_VERSION "0.4" @@ -72,7 +72,6 @@ static int get_power_status (struct hotplug_slot *slot, u8 *value); static int get_attention_status (struct hotplug_slot *slot, u8 *value); static int get_latch_status (struct hotplug_slot *slot, u8 *value); static int get_adapter_status (struct hotplug_slot *slot, u8 *value); -static int get_address (struct hotplug_slot *slot, u32 *value); static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); @@ -85,7 +84,6 @@ static struct hotplug_slot_ops pciehp_hotplug_slot_ops = { .get_attention_status = get_attention_status, .get_latch_status = get_latch_status, .get_adapter_status = get_adapter_status, - .get_address = get_address, .get_max_bus_speed = get_max_bus_speed, .get_cur_bus_speed = get_cur_bus_speed, }; @@ -252,7 +250,9 @@ static int init_slots(struct controller *ctrl) dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x " "slot_device_offset=%x\n", slot->bus, slot->device, slot->hp_slot, slot->number, ctrl->slot_device_offset); - retval = pci_hp_register(hotplug_slot); + retval = pci_hp_register(hotplug_slot, + ctrl->pci_dev->subordinate, + slot->device); if (retval) { err("pci_hp_register failed with error %d\n", retval); if (retval == -EEXIST) @@ -263,7 +263,7 @@ static int init_slots(struct controller *ctrl) } /* create additional sysfs entries */ if (EMI(ctrl)) { - retval = sysfs_create_file(&hotplug_slot->kobj, + retval = sysfs_create_file(&hotplug_slot->pci_slot->kobj, &hotplug_slot_attr_lock.attr); if (retval) { pci_hp_deregister(hotplug_slot); @@ -296,7 +296,7 @@ static void cleanup_slots(struct controller *ctrl) slot = list_entry(tmp, struct slot, slot_list); list_del(&slot->slot_list); if (EMI(ctrl)) - sysfs_remove_file(&slot->hotplug_slot->kobj, + sysfs_remove_file(&slot->hotplug_slot->pci_slot->kobj, &hotplug_slot_attr_lock.attr); cancel_delayed_work(&slot->work); flush_scheduled_work(); @@ -398,19 +398,8 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value) return 0; } -static int get_address(struct hotplug_slot *hotplug_slot, u32 *value) -{ - struct slot *slot = hotplug_slot->private; - struct pci_bus *bus = slot->ctrl->pci_dev->subordinate; - - dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); - - *value = (pci_domain_nr(bus) << 16) | (slot->bus << 8) | slot->device; - - return 0; -} - -static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) +static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, + enum pci_bus_speed *value) { struct slot *slot = hotplug_slot->private; int retval; @@ -444,7 +433,13 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ struct controller *ctrl; struct slot *t_slot; u8 value; - struct pci_dev *pdev; + struct pci_dev *pdev = dev->port; + + if (pciehp_force) + dbg("Bypassing BIOS check for pciehp use on %s\n", + pci_name(pdev)); + else if (pciehp_get_hp_hw_control_from_firmware(pdev)) + goto err_out_none; ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL); if (!ctrl) { @@ -453,9 +448,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ } INIT_LIST_HEAD(&ctrl->slot_list); - pdev = dev->port; - ctrl->pci_dev = pdev; - rc = pcie_init(ctrl, dev); if (rc) { dbg("%s: controller initialization failed\n", PCIE_MODULE_NAME); @@ -471,7 +463,12 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ /* Setup the slot information structures */ rc = init_slots(ctrl); if (rc) { - err("%s: slot initialization failed\n", PCIE_MODULE_NAME); + if (rc == -EBUSY) + warn("%s: slot already registered by another " + "hotplug driver\n", PCIE_MODULE_NAME); + else + err("%s: slot initialization failed\n", + PCIE_MODULE_NAME); goto err_out_release_ctlr; } diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 79f104963166..0cfaedf2edca 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -268,9 +268,8 @@ completed: return timeout; } -static inline int pcie_wait_cmd(struct controller *ctrl, int poll) +static inline void pcie_wait_cmd(struct controller *ctrl, int poll) { - int retval = 0; unsigned int msecs = pciehp_poll_mode ? 2500 : 1000; unsigned long timeout = msecs_to_jiffies(msecs); int rc; @@ -278,16 +277,9 @@ static inline int pcie_wait_cmd(struct controller *ctrl, int poll) if (poll) rc = pcie_poll_cmd(ctrl); else - rc = wait_event_interruptible_timeout(ctrl->queue, - !ctrl->cmd_busy, timeout); + rc = wait_event_timeout(ctrl->queue, !ctrl->cmd_busy, timeout); if (!rc) dbg("Command not completed in 1000 msec\n"); - else if (rc < 0) { - retval = -EINTR; - info("Command was interrupted by a signal\n"); - } - - return retval; } /** @@ -365,7 +357,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask) if (!(slot_ctrl & HP_INTR_ENABLE) || !(slot_ctrl & CMD_CMPL_INTR_ENABLE)) poll = 1; - retval = pcie_wait_cmd(ctrl, poll); + pcie_wait_cmd(ctrl, poll); } out: mutex_unlock(&ctrl->ctrl_lock); @@ -785,7 +777,7 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) intr_loc |= detected; if (!intr_loc) return IRQ_NONE; - if (pciehp_writew(ctrl, SLOTSTATUS, detected)) { + if (detected && pciehp_writew(ctrl, SLOTSTATUS, detected)) { err("%s: Cannot write to SLOTSTATUS\n", __func__); return IRQ_NONE; } @@ -797,7 +789,7 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) if (intr_loc & CMD_COMPLETED) { ctrl->cmd_busy = 0; smp_mb(); - wake_up_interruptible(&ctrl->queue); + wake_up(&ctrl->queue); } if (!(intr_loc & ~CMD_COMPLETED)) @@ -1017,75 +1009,6 @@ static struct hpc_ops pciehp_hpc_ops = { .check_lnk_status = hpc_check_lnk_status, }; -#ifdef CONFIG_ACPI -static int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev) -{ - acpi_status status; - acpi_handle chandle, handle = DEVICE_ACPI_HANDLE(&(dev->dev)); - struct pci_dev *pdev = dev; - struct pci_bus *parent; - struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL }; - - /* - * Per PCI firmware specification, we should run the ACPI _OSC - * method to get control of hotplug hardware before using it. - * If an _OSC is missing, we look for an OSHP to do the same thing. - * To handle different BIOS behavior, we look for _OSC and OSHP - * within the scope of the hotplug controller and its parents, upto - * the host bridge under which this controller exists. - */ - while (!handle) { - /* - * This hotplug controller was not listed in the ACPI name - * space at all. Try to get acpi handle of parent pci bus. - */ - if (!pdev || !pdev->bus->parent) - break; - parent = pdev->bus->parent; - dbg("Could not find %s in acpi namespace, trying parent\n", - pci_name(pdev)); - if (!parent->self) - /* Parent must be a host bridge */ - handle = acpi_get_pci_rootbridge_handle( - pci_domain_nr(parent), - parent->number); - else - handle = DEVICE_ACPI_HANDLE( - &(parent->self->dev)); - pdev = parent->self; - } - - while (handle) { - acpi_get_name(handle, ACPI_FULL_PATHNAME, &string); - dbg("Trying to get hotplug control for %s \n", - (char *)string.pointer); - status = pci_osc_control_set(handle, - OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL | - OSC_PCI_EXPRESS_NATIVE_HP_CONTROL); - if (status == AE_NOT_FOUND) - status = acpi_run_oshp(handle); - if (ACPI_SUCCESS(status)) { - dbg("Gained control for hotplug HW for pci %s (%s)\n", - pci_name(dev), (char *)string.pointer); - kfree(string.pointer); - return 0; - } - if (acpi_root_bridge(handle)) - break; - chandle = handle; - status = acpi_get_parent(chandle, &handle); - if (ACPI_FAILURE(status)) - break; - } - - dbg("Cannot get control of hotplug hardware for pci %s\n", - pci_name(dev)); - - kfree(string.pointer); - return -1; -} -#endif - static int pcie_init_hardware_part1(struct controller *ctrl, struct pcie_device *dev) { @@ -1122,23 +1045,10 @@ int pcie_init_hardware_part2(struct controller *ctrl, struct pcie_device *dev) if (pcie_write_cmd(ctrl, cmd, mask)) { err("%s: Cannot enable software notification\n", __func__); - goto abort; + return -1; } - if (pciehp_force) - dbg("Bypassing BIOS check for pciehp use on %s\n", - pci_name(ctrl->pci_dev)); - else if (pciehp_get_hp_hw_control_from_firmware(ctrl->pci_dev)) - goto abort_disable_intr; - return 0; - - /* We end up here for the many possible ways to fail this API. */ -abort_disable_intr: - if (pcie_write_cmd(ctrl, 0, HP_INTR_ENABLE)) - err("%s : disabling interrupts failed\n", __func__); -abort: - return -1; } static inline void dbg_ctrl(struct controller *ctrl) @@ -1176,7 +1086,7 @@ static inline void dbg_ctrl(struct controller *ctrl) dbg(" Comamnd Completed : %3s\n", NO_CMD_CMPL(ctrl)? "no" : "yes"); pciehp_readw(ctrl, SLOTSTATUS, ®16); dbg("Slot Status : 0x%04x\n", reg16); - pciehp_readw(ctrl, SLOTSTATUS, ®16); + pciehp_readw(ctrl, SLOTCTRL, ®16); dbg("Slot Control : 0x%04x\n", reg16); } diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c index 779c5db71be4..a796301ea03f 100644 --- a/drivers/pci/hotplug/rpadlpar_sysfs.c +++ b/drivers/pci/hotplug/rpadlpar_sysfs.c @@ -14,8 +14,10 @@ */ #include <linux/kobject.h> #include <linux/string.h> +#include <linux/pci.h> #include <linux/pci_hotplug.h> #include "rpadlpar.h" +#include "../pci.h" #define DLPAR_KOBJ_NAME "control" @@ -27,7 +29,6 @@ #define MAX_DRC_NAME_LEN 64 - static ssize_t add_slot_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t nbytes) { @@ -112,7 +113,7 @@ int dlpar_sysfs_init(void) int error; dlpar_kobj = kobject_create_and_add(DLPAR_KOBJ_NAME, - &pci_hotplug_slots_kset->kobj); + &pci_slots_kset->kobj); if (!dlpar_kobj) return -EINVAL; diff --git a/drivers/pci/hotplug/rpaphp_slot.c b/drivers/pci/hotplug/rpaphp_slot.c index 56197b600d36..9b714ea93d20 100644 --- a/drivers/pci/hotplug/rpaphp_slot.c +++ b/drivers/pci/hotplug/rpaphp_slot.c @@ -33,33 +33,6 @@ #include <asm/rtas.h> #include "rpaphp.h" -static ssize_t address_read_file (struct hotplug_slot *php_slot, char *buf) -{ - int retval; - struct slot *slot = (struct slot *)php_slot->private; - struct pci_bus *bus; - - if (!slot) - return -ENOENT; - - bus = slot->bus; - if (!bus) - return -ENOENT; - - if (bus->self) - retval = sprintf(buf, pci_name(bus->self)); - else - retval = sprintf(buf, "%04x:%02x:00.0", - pci_domain_nr(bus), bus->number); - - return retval; -} - -static struct hotplug_slot_attribute php_attr_address = { - .attr = {.name = "address", .mode = S_IFREG | S_IRUGO}, - .show = address_read_file, -}; - /* free up the memory used by a slot */ static void rpaphp_release_slot(struct hotplug_slot *hotplug_slot) { @@ -135,9 +108,6 @@ int rpaphp_deregister_slot(struct slot *slot) list_del(&slot->rpaphp_slot_list); - /* remove "address" file */ - sysfs_remove_file(&php_slot->kobj, &php_attr_address.attr); - retval = pci_hp_deregister(php_slot); if (retval) err("Problem unregistering a slot %s\n", slot->name); @@ -151,6 +121,7 @@ int rpaphp_register_slot(struct slot *slot) { struct hotplug_slot *php_slot = slot->hotplug_slot; int retval; + int slotno; dbg("%s registering slot:path[%s] index[%x], name[%s] pdomain[%x] type[%d]\n", __func__, slot->dn->full_name, slot->index, slot->name, @@ -162,19 +133,16 @@ int rpaphp_register_slot(struct slot *slot) return -EAGAIN; } - retval = pci_hp_register(php_slot); + if (slot->dn->child) + slotno = PCI_SLOT(PCI_DN(slot->dn->child)->devfn); + else + slotno = -1; + retval = pci_hp_register(php_slot, slot->bus, slotno); if (retval) { err("pci_hp_register failed with error %d\n", retval); return retval; } - /* create "address" file */ - retval = sysfs_create_file(&php_slot->kobj, &php_attr_address.attr); - if (retval) { - err("sysfs_create_file failed with error %d\n", retval); - goto sysfs_fail; - } - /* add slot to our internal list */ list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head); info("Slot [%s] registered\n", slot->name); diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c index 2fe37cd85b69..410fe0394a8e 100644 --- a/drivers/pci/hotplug/sgi_hotplug.c +++ b/drivers/pci/hotplug/sgi_hotplug.c @@ -197,13 +197,15 @@ static int sn_hp_slot_private_alloc(struct hotplug_slot *bss_hotplug_slot, static struct hotplug_slot * sn_hp_destroy(void) { struct slot *slot; + struct pci_slot *pci_slot; struct hotplug_slot *bss_hotplug_slot = NULL; list_for_each_entry(slot, &sn_hp_list, hp_list) { bss_hotplug_slot = slot->hotplug_slot; + pci_slot = bss_hotplug_slot->pci_slot; list_del(&((struct slot *)bss_hotplug_slot->private)-> hp_list); - sysfs_remove_file(&bss_hotplug_slot->kobj, + sysfs_remove_file(&pci_slot->kobj, &sn_slot_path_attr.attr); break; } @@ -614,6 +616,7 @@ static void sn_release_slot(struct hotplug_slot *bss_hotplug_slot) static int sn_hotplug_slot_register(struct pci_bus *pci_bus) { int device; + struct pci_slot *pci_slot; struct hotplug_slot *bss_hotplug_slot; int rc = 0; @@ -650,11 +653,12 @@ static int sn_hotplug_slot_register(struct pci_bus *pci_bus) bss_hotplug_slot->ops = &sn_hotplug_slot_ops; bss_hotplug_slot->release = &sn_release_slot; - rc = pci_hp_register(bss_hotplug_slot); + rc = pci_hp_register(bss_hotplug_slot, pci_bus, device); if (rc) goto register_err; - rc = sysfs_create_file(&bss_hotplug_slot->kobj, + pci_slot = bss_hotplug_slot->pci_slot; + rc = sysfs_create_file(&pci_slot->kobj, &sn_slot_path_attr.attr); if (rc) goto register_err; @@ -664,7 +668,7 @@ static int sn_hotplug_slot_register(struct pci_bus *pci_bus) register_err: dev_dbg(&pci_bus->self->dev, "bus failed to register with err = %d\n", - rc); + rc); alloc_err: if (rc == -ENOMEM) diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h index f66e8d6315ab..8a026f750deb 100644 --- a/drivers/pci/hotplug/shpchp.h +++ b/drivers/pci/hotplug/shpchp.h @@ -170,6 +170,7 @@ extern void shpchp_queue_pushbutton_work(struct work_struct *work); extern int shpc_init( struct controller *ctrl, struct pci_dev *pdev); #ifdef CONFIG_ACPI +#include <linux/pci-acpi.h> static inline int get_hp_params_from_firmware(struct pci_dev *dev, struct hotplug_params *hpp) { @@ -177,14 +178,15 @@ static inline int get_hp_params_from_firmware(struct pci_dev *dev, return -ENODEV; return 0; } -#define get_hp_hw_control_from_firmware(pdev) \ - do { \ - if (DEVICE_ACPI_HANDLE(&(pdev->dev))) \ - acpi_run_oshp(DEVICE_ACPI_HANDLE(&(pdev->dev)));\ - } while (0) + +static inline int get_hp_hw_control_from_firmware(struct pci_dev *dev) +{ + u32 flags = OSC_SHPC_NATIVE_HP_CONTROL; + return acpi_get_hp_hw_control_from_firmware(dev, flags); +} #else #define get_hp_params_from_firmware(dev, hpp) (-ENODEV) -#define get_hp_hw_control_from_firmware(dev) do { } while (0) +#define get_hp_hw_control_from_firmware(dev) (0) #endif struct ctrl_reg { diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index 97848654652a..a8cbd039b85b 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c @@ -39,7 +39,7 @@ int shpchp_debug; int shpchp_poll_mode; int shpchp_poll_time; -int shpchp_slot_with_bus; +static int shpchp_slot_with_bus; struct workqueue_struct *shpchp_wq; #define DRIVER_VERSION "0.4" @@ -68,7 +68,6 @@ static int get_power_status (struct hotplug_slot *slot, u8 *value); static int get_attention_status (struct hotplug_slot *slot, u8 *value); static int get_latch_status (struct hotplug_slot *slot, u8 *value); static int get_adapter_status (struct hotplug_slot *slot, u8 *value); -static int get_address (struct hotplug_slot *slot, u32 *value); static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value); @@ -81,7 +80,6 @@ static struct hotplug_slot_ops shpchp_hotplug_slot_ops = { .get_attention_status = get_attention_status, .get_latch_status = get_latch_status, .get_adapter_status = get_adapter_status, - .get_address = get_address, .get_max_bus_speed = get_max_bus_speed, .get_cur_bus_speed = get_cur_bus_speed, }; @@ -159,7 +157,8 @@ static int init_slots(struct controller *ctrl) dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x " "slot_device_offset=%x\n", slot->bus, slot->device, slot->hp_slot, slot->number, ctrl->slot_device_offset); - retval = pci_hp_register(slot->hotplug_slot); + retval = pci_hp_register(slot->hotplug_slot, + ctrl->pci_dev->subordinate, slot->device); if (retval) { err("pci_hp_register failed with error %d\n", retval); if (retval == -EEXIST) @@ -288,19 +287,8 @@ static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value) return 0; } -static int get_address (struct hotplug_slot *hotplug_slot, u32 *value) -{ - struct slot *slot = get_slot(hotplug_slot); - struct pci_bus *bus = slot->ctrl->pci_dev->subordinate; - - dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name); - - *value = (pci_domain_nr(bus) << 16) | (slot->bus << 8) | slot->device; - - return 0; -} - -static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) +static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, + enum pci_bus_speed *value) { struct slot *slot = get_slot(hotplug_slot); int retval; @@ -330,13 +318,14 @@ static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_sp static int is_shpc_capable(struct pci_dev *dev) { - if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device == - PCI_DEVICE_ID_AMD_GOLAM_7450)) - return 1; - if (pci_find_capability(dev, PCI_CAP_ID_SHPC)) - return 1; - - return 0; + if ((dev->vendor == PCI_VENDOR_ID_AMD) || (dev->device == + PCI_DEVICE_ID_AMD_GOLAM_7450)) + return 1; + if (!pci_find_capability(dev, PCI_CAP_ID_SHPC)) + return 0; + if (get_hp_hw_control_from_firmware(dev)) + return 0; + return 1; } static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index 7d770b2cd889..7a0bff364cd4 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -1084,7 +1084,6 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) dbg("%s: HPC at b:d:f:irq=0x%x:%x:%x:%x\n", __func__, pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), pdev->irq); - get_hp_hw_control_from_firmware(pdev); /* * If this is the first controller to be initialized, diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 66c0fd21894b..3f7b81c065d2 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1637,12 +1637,43 @@ static inline int iommu_prepare_rmrr_dev(struct dmar_rmrr_unit *rmrr, } #ifdef CONFIG_DMAR_GFX_WA -extern int arch_get_ram_range(int slot, u64 *addr, u64 *size); +struct iommu_prepare_data { + struct pci_dev *pdev; + int ret; +}; + +static int __init iommu_prepare_work_fn(unsigned long start_pfn, + unsigned long end_pfn, void *datax) +{ + struct iommu_prepare_data *data; + + data = (struct iommu_prepare_data *)datax; + + data->ret = iommu_prepare_identity_map(data->pdev, + start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT); + return data->ret; + +} + +static int __init iommu_prepare_with_active_regions(struct pci_dev *pdev) +{ + int nid; + struct iommu_prepare_data data; + + data.pdev = pdev; + data.ret = 0; + + for_each_online_node(nid) { + work_with_active_regions(nid, iommu_prepare_work_fn, &data); + if (data.ret) + return data.ret; + } + return data.ret; +} + static void __init iommu_prepare_gfx_mapping(void) { struct pci_dev *pdev = NULL; - u64 base, size; - int slot; int ret; for_each_pci_dev(pdev) { @@ -1651,17 +1682,9 @@ static void __init iommu_prepare_gfx_mapping(void) continue; printk(KERN_INFO "IOMMU: gfx device %s 1-1 mapping\n", pci_name(pdev)); - slot = arch_get_ram_range(0, &base, &size); - while (slot >= 0) { - ret = iommu_prepare_identity_map(pdev, - base, base + size); - if (ret) - goto error; - slot = arch_get_ram_range(slot, &base, &size); - } - continue; -error: - printk(KERN_ERR "IOMMU: mapping reserved region failed\n"); + ret = iommu_prepare_with_active_regions(pdev); + if (ret) + printk(KERN_ERR "IOMMU: mapping reserved region failed\n"); } } #endif @@ -1725,7 +1748,6 @@ int __init init_dmars(void) deferred_flush = kzalloc(g_num_of_iommus * sizeof(struct deferred_flush_tables), GFP_KERNEL); if (!deferred_flush) { - kfree(g_iommus); ret = -ENOMEM; goto error; } diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 8c61304cbb37..ccb1974464fb 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -70,12 +70,10 @@ arch_teardown_msi_irqs(struct pci_dev *dev) } } -static void msi_set_enable(struct pci_dev *dev, int enable) +static void __msi_set_enable(struct pci_dev *dev, int pos, int enable) { - int pos; u16 control; - pos = pci_find_capability(dev, PCI_CAP_ID_MSI); if (pos) { pci_read_config_word(dev, pos + PCI_MSI_FLAGS, &control); control &= ~PCI_MSI_FLAGS_ENABLE; @@ -85,6 +83,11 @@ static void msi_set_enable(struct pci_dev *dev, int enable) } } +static void msi_set_enable(struct pci_dev *dev, int enable) +{ + __msi_set_enable(dev, pci_find_capability(dev, PCI_CAP_ID_MSI), enable); +} + static void msix_set_enable(struct pci_dev *dev, int enable) { int pos; @@ -141,7 +144,8 @@ static void msi_set_mask_bits(unsigned int irq, u32 mask, u32 flag) mask_bits |= flag & mask; pci_write_config_dword(entry->dev, pos, mask_bits); } else { - msi_set_enable(entry->dev, !flag); + __msi_set_enable(entry->dev, entry->msi_attrib.pos, + !flag); } break; case PCI_CAP_ID_MSIX: diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 9d6fc8e6285d..056ea80ee27a 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -21,12 +21,19 @@ struct acpi_osc_data { acpi_handle handle; - u32 ctrlset_buf[3]; - u32 global_ctrlsets; + u32 support_set; + u32 control_set; + int is_queried; + u32 query_result; struct list_head sibiling; }; static LIST_HEAD(acpi_osc_data_list); +struct acpi_osc_args { + u32 capbuf[3]; + u32 query_result; +}; + static struct acpi_osc_data *acpi_get_osc_data(acpi_handle handle) { struct acpi_osc_data *data; @@ -44,42 +51,18 @@ static struct acpi_osc_data *acpi_get_osc_data(acpi_handle handle) return data; } -static u8 OSC_UUID[16] = {0x5B, 0x4D, 0xDB, 0x33, 0xF7, 0x1F, 0x1C, 0x40, 0x96, 0x57, 0x74, 0x41, 0xC0, 0x3D, 0xD7, 0x66}; +static u8 OSC_UUID[16] = {0x5B, 0x4D, 0xDB, 0x33, 0xF7, 0x1F, 0x1C, 0x40, + 0x96, 0x57, 0x74, 0x41, 0xC0, 0x3D, 0xD7, 0x66}; -static acpi_status -acpi_query_osc ( - acpi_handle handle, - u32 level, - void *context, - void **retval ) +static acpi_status acpi_run_osc(acpi_handle handle, + struct acpi_osc_args *osc_args) { - acpi_status status; - struct acpi_object_list input; - union acpi_object in_params[4]; - struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; - union acpi_object *out_obj; - u32 osc_dw0; - acpi_status *ret_status = (acpi_status *)retval; - struct acpi_osc_data *osc_data; - u32 flags = (unsigned long)context, temp; - acpi_handle tmp; - - status = acpi_get_handle(handle, "_OSC", &tmp); - if (ACPI_FAILURE(status)) - return status; - - osc_data = acpi_get_osc_data(handle); - if (!osc_data) { - printk(KERN_ERR "acpi osc data array is full\n"); - return AE_ERROR; - } - - osc_data->ctrlset_buf[OSC_SUPPORT_TYPE] |= (flags & OSC_SUPPORT_MASKS); - - /* do _OSC query for all possible controls */ - temp = osc_data->ctrlset_buf[OSC_CONTROL_TYPE]; - osc_data->ctrlset_buf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE; - osc_data->ctrlset_buf[OSC_CONTROL_TYPE] = OSC_CONTROL_MASKS; + acpi_status status; + struct acpi_object_list input; + union acpi_object in_params[4]; + struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; + union acpi_object *out_obj; + u32 osc_dw0, flags = osc_args->capbuf[OSC_QUERY_TYPE]; /* Setting up input parameters */ input.count = 4; @@ -93,20 +76,19 @@ acpi_query_osc ( in_params[2].integer.value = 3; in_params[3].type = ACPI_TYPE_BUFFER; in_params[3].buffer.length = 12; - in_params[3].buffer.pointer = (u8 *)osc_data->ctrlset_buf; + in_params[3].buffer.pointer = (u8 *)osc_args->capbuf; status = acpi_evaluate_object(handle, "_OSC", &input, &output); if (ACPI_FAILURE(status)) - goto out_nofree; - out_obj = output.pointer; + return status; + out_obj = output.pointer; if (out_obj->type != ACPI_TYPE_BUFFER) { - printk(KERN_DEBUG - "Evaluate _OSC returns wrong type\n"); + printk(KERN_DEBUG "Evaluate _OSC returns wrong type\n"); status = AE_TYPE; - goto query_osc_out; + goto out_kfree; } - osc_dw0 = *((u32 *) out_obj->buffer.pointer); + osc_dw0 = *((u32 *)out_obj->buffer.pointer); if (osc_dw0) { if (osc_dw0 & OSC_REQUEST_ERROR) printk(KERN_DEBUG "_OSC request fails\n"); @@ -115,93 +97,58 @@ acpi_query_osc ( if (osc_dw0 & OSC_INVALID_REVISION_ERROR) printk(KERN_DEBUG "_OSC invalid revision\n"); if (osc_dw0 & OSC_CAPABILITIES_MASK_ERROR) { - /* Update Global Control Set */ - osc_data->global_ctrlsets = - *((u32 *)(out_obj->buffer.pointer + 8)); - status = AE_OK; - goto query_osc_out; + if (flags & OSC_QUERY_ENABLE) + goto out_success; + printk(KERN_DEBUG "_OSC FW not grant req. control\n"); + status = AE_SUPPORT; + goto out_kfree; } status = AE_ERROR; - goto query_osc_out; + goto out_kfree; } - - /* Update Global Control Set */ - osc_data->global_ctrlsets = *((u32 *)(out_obj->buffer.pointer + 8)); +out_success: + if (flags & OSC_QUERY_ENABLE) + osc_args->query_result = + *((u32 *)(out_obj->buffer.pointer + 8)); status = AE_OK; -query_osc_out: +out_kfree: kfree(output.pointer); -out_nofree: - *ret_status = status; - - osc_data->ctrlset_buf[OSC_QUERY_TYPE] = !OSC_QUERY_ENABLE; - osc_data->ctrlset_buf[OSC_CONTROL_TYPE] = temp; - if (ACPI_FAILURE(status)) { - /* no osc support at all */ - osc_data->ctrlset_buf[OSC_SUPPORT_TYPE] = 0; - } - return status; } - -static acpi_status -acpi_run_osc ( - acpi_handle handle, - void *context) +static acpi_status acpi_query_osc(acpi_handle handle, + u32 level, void *context, void **retval) { - acpi_status status; - struct acpi_object_list input; - union acpi_object in_params[4]; - struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; - union acpi_object *out_obj; - u32 osc_dw0; - - /* Setting up input parameters */ - input.count = 4; - input.pointer = in_params; - in_params[0].type = ACPI_TYPE_BUFFER; - in_params[0].buffer.length = 16; - in_params[0].buffer.pointer = OSC_UUID; - in_params[1].type = ACPI_TYPE_INTEGER; - in_params[1].integer.value = 1; - in_params[2].type = ACPI_TYPE_INTEGER; - in_params[2].integer.value = 3; - in_params[3].type = ACPI_TYPE_BUFFER; - in_params[3].buffer.length = 12; - in_params[3].buffer.pointer = (u8 *)context; + acpi_status status; + struct acpi_osc_data *osc_data; + u32 flags = (unsigned long)context, support_set; + acpi_handle tmp; + struct acpi_osc_args osc_args; - status = acpi_evaluate_object(handle, "_OSC", &input, &output); - if (ACPI_FAILURE (status)) + status = acpi_get_handle(handle, "_OSC", &tmp); + if (ACPI_FAILURE(status)) return status; - out_obj = output.pointer; - if (out_obj->type != ACPI_TYPE_BUFFER) { - printk(KERN_DEBUG - "Evaluate _OSC returns wrong type\n"); - status = AE_TYPE; - goto run_osc_out; + osc_data = acpi_get_osc_data(handle); + if (!osc_data) { + printk(KERN_ERR "acpi osc data array is full\n"); + return AE_ERROR; } - osc_dw0 = *((u32 *) out_obj->buffer.pointer); - if (osc_dw0) { - if (osc_dw0 & OSC_REQUEST_ERROR) - printk(KERN_DEBUG "_OSC request fails\n"); - if (osc_dw0 & OSC_INVALID_UUID_ERROR) - printk(KERN_DEBUG "_OSC invalid UUID\n"); - if (osc_dw0 & OSC_INVALID_REVISION_ERROR) - printk(KERN_DEBUG "_OSC invalid revision\n"); - if (osc_dw0 & OSC_CAPABILITIES_MASK_ERROR) { - printk(KERN_DEBUG "_OSC FW not grant req. control\n"); - status = AE_SUPPORT; - goto run_osc_out; - } - status = AE_ERROR; - goto run_osc_out; + + /* do _OSC query for all possible controls */ + support_set = osc_data->support_set | (flags & OSC_SUPPORT_MASKS); + osc_args.capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE; + osc_args.capbuf[OSC_SUPPORT_TYPE] = support_set; + osc_args.capbuf[OSC_CONTROL_TYPE] = OSC_CONTROL_MASKS; + + status = acpi_run_osc(handle, &osc_args); + if (ACPI_SUCCESS(status)) { + osc_data->support_set = support_set; + osc_data->query_result = osc_args.query_result; + osc_data->is_queried = 1; } - status = AE_OK; -run_osc_out: - kfree(output.pointer); return status; } @@ -215,15 +162,11 @@ run_osc_out: **/ acpi_status __pci_osc_support_set(u32 flags, const char *hid) { - acpi_status retval = AE_NOT_FOUND; - - if (!(flags & OSC_SUPPORT_MASKS)) { + if (!(flags & OSC_SUPPORT_MASKS)) return AE_TYPE; - } - acpi_get_devices(hid, - acpi_query_osc, - (void *)(unsigned long)flags, - (void **) &retval ); + + acpi_get_devices(hid, acpi_query_osc, + (void *)(unsigned long)flags, NULL); return AE_OK; } @@ -236,10 +179,11 @@ acpi_status __pci_osc_support_set(u32 flags, const char *hid) **/ acpi_status pci_osc_control_set(acpi_handle handle, u32 flags) { - acpi_status status; - u32 ctrlset; + acpi_status status; + u32 ctrlset, control_set; acpi_handle tmp; struct acpi_osc_data *osc_data; + struct acpi_osc_args osc_args; status = acpi_get_handle(handle, "_OSC", &tmp); if (ACPI_FAILURE(status)) @@ -252,19 +196,21 @@ acpi_status pci_osc_control_set(acpi_handle handle, u32 flags) } ctrlset = (flags & OSC_CONTROL_MASKS); - if (!ctrlset) { + if (!ctrlset) return AE_TYPE; - } - if (osc_data->ctrlset_buf[OSC_SUPPORT_TYPE] && - ((osc_data->global_ctrlsets & ctrlset) != ctrlset)) { + + if (osc_data->is_queried && + ((osc_data->query_result & ctrlset) != ctrlset)) return AE_SUPPORT; - } - osc_data->ctrlset_buf[OSC_CONTROL_TYPE] |= ctrlset; - status = acpi_run_osc(handle, osc_data->ctrlset_buf); - if (ACPI_FAILURE (status)) { - osc_data->ctrlset_buf[OSC_CONTROL_TYPE] &= ~ctrlset; - } - + + control_set = osc_data->control_set | ctrlset; + osc_args.capbuf[OSC_QUERY_TYPE] = 0; + osc_args.capbuf[OSC_SUPPORT_TYPE] = osc_data->support_set; + osc_args.capbuf[OSC_CONTROL_TYPE] = control_set; + status = acpi_run_osc(handle, &osc_args); + if (ACPI_SUCCESS(status)) + osc_data->control_set = control_set; + return status; } EXPORT_SYMBOL(pci_osc_control_set); @@ -293,13 +239,11 @@ EXPORT_SYMBOL(pci_osc_control_set); * choose highest power _SxD or any lower power */ -static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev, - pm_message_t state) +static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev) { int acpi_state; - acpi_state = acpi_pm_device_sleep_state(&pdev->dev, - device_may_wakeup(&pdev->dev), NULL); + acpi_state = acpi_pm_device_sleep_state(&pdev->dev, NULL); if (acpi_state < 0) return PCI_POWER_ERROR; diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index e1637bd82b8e..a13f53486114 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -274,7 +274,57 @@ static int pci_device_remove(struct device * dev) return 0; } -static int pci_device_suspend(struct device * dev, pm_message_t state) +static void pci_device_shutdown(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct pci_driver *drv = pci_dev->driver; + + if (drv && drv->shutdown) + drv->shutdown(pci_dev); + pci_msi_shutdown(pci_dev); + pci_msix_shutdown(pci_dev); +} + +#ifdef CONFIG_PM_SLEEP + +/* + * Default "suspend" method for devices that have no driver provided suspend, + * or not even a driver at all. + */ +static void pci_default_pm_suspend(struct pci_dev *pci_dev) +{ + pci_save_state(pci_dev); + /* + * mark its power state as "unknown", since we don't know if + * e.g. the BIOS will change its device state when we suspend. + */ + if (pci_dev->current_state == PCI_D0) + pci_dev->current_state = PCI_UNKNOWN; +} + +/* + * Default "resume" method for devices that have no driver provided resume, + * or not even a driver at all. + */ +static int pci_default_pm_resume(struct pci_dev *pci_dev) +{ + int retval = 0; + + /* restore the PCI config space */ + pci_restore_state(pci_dev); + /* if the device was enabled before suspend, reenable */ + retval = pci_reenable_device(pci_dev); + /* + * if the device was busmaster before the suspend, make it busmaster + * again + */ + if (pci_dev->is_busmaster) + pci_set_master(pci_dev); + + return retval; +} + +static int pci_legacy_suspend(struct device *dev, pm_message_t state) { struct pci_dev * pci_dev = to_pci_dev(dev); struct pci_driver * drv = pci_dev->driver; @@ -284,18 +334,12 @@ static int pci_device_suspend(struct device * dev, pm_message_t state) i = drv->suspend(pci_dev, state); suspend_report_result(drv->suspend, i); } else { - pci_save_state(pci_dev); - /* - * mark its power state as "unknown", since we don't know if - * e.g. the BIOS will change its device state when we suspend. - */ - if (pci_dev->current_state == PCI_D0) - pci_dev->current_state = PCI_UNKNOWN; + pci_default_pm_suspend(pci_dev); } return i; } -static int pci_device_suspend_late(struct device * dev, pm_message_t state) +static int pci_legacy_suspend_late(struct device *dev, pm_message_t state) { struct pci_dev * pci_dev = to_pci_dev(dev); struct pci_driver * drv = pci_dev->driver; @@ -308,26 +352,7 @@ static int pci_device_suspend_late(struct device * dev, pm_message_t state) return i; } -/* - * Default resume method for devices that have no driver provided resume, - * or not even a driver at all. - */ -static int pci_default_resume(struct pci_dev *pci_dev) -{ - int retval = 0; - - /* restore the PCI config space */ - pci_restore_state(pci_dev); - /* if the device was enabled before suspend, reenable */ - retval = pci_reenable_device(pci_dev); - /* if the device was busmaster before the suspend, make it busmaster again */ - if (pci_dev->is_busmaster) - pci_set_master(pci_dev); - - return retval; -} - -static int pci_device_resume(struct device * dev) +static int pci_legacy_resume(struct device *dev) { int error; struct pci_dev * pci_dev = to_pci_dev(dev); @@ -336,34 +361,313 @@ static int pci_device_resume(struct device * dev) if (drv && drv->resume) error = drv->resume(pci_dev); else - error = pci_default_resume(pci_dev); + error = pci_default_pm_resume(pci_dev); return error; } -static int pci_device_resume_early(struct device * dev) +static int pci_legacy_resume_early(struct device *dev) { int error = 0; struct pci_dev * pci_dev = to_pci_dev(dev); struct pci_driver * drv = pci_dev->driver; - pci_fixup_device(pci_fixup_resume, pci_dev); - if (drv && drv->resume_early) error = drv->resume_early(pci_dev); return error; } -static void pci_device_shutdown(struct device *dev) +static int pci_pm_prepare(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int error = 0; + + if (drv && drv->pm && drv->pm->prepare) + error = drv->pm->prepare(dev); + + return error; +} + +static void pci_pm_complete(struct device *dev) +{ + struct device_driver *drv = dev->driver; + + if (drv && drv->pm && drv->pm->complete) + drv->pm->complete(dev); +} + +#ifdef CONFIG_SUSPEND + +static int pci_pm_suspend(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct device_driver *drv = dev->driver; + int error = 0; + + if (drv && drv->pm) { + if (drv->pm->suspend) { + error = drv->pm->suspend(dev); + suspend_report_result(drv->pm->suspend, error); + } else { + pci_default_pm_suspend(pci_dev); + } + } else { + error = pci_legacy_suspend(dev, PMSG_SUSPEND); + } + pci_fixup_device(pci_fixup_suspend, pci_dev); + + return error; +} + +static int pci_pm_suspend_noirq(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); struct pci_driver *drv = pci_dev->driver; + int error = 0; - if (drv && drv->shutdown) - drv->shutdown(pci_dev); - pci_msi_shutdown(pci_dev); - pci_msix_shutdown(pci_dev); + if (drv && drv->pm) { + if (drv->pm->suspend_noirq) { + error = drv->pm->suspend_noirq(dev); + suspend_report_result(drv->pm->suspend_noirq, error); + } + } else { + error = pci_legacy_suspend_late(dev, PMSG_SUSPEND); + } + + return error; } +static int pci_pm_resume(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct device_driver *drv = dev->driver; + int error; + + pci_fixup_device(pci_fixup_resume, pci_dev); + + if (drv && drv->pm) { + error = drv->pm->resume ? drv->pm->resume(dev) : + pci_default_pm_resume(pci_dev); + } else { + error = pci_legacy_resume(dev); + } + + return error; +} + +static int pci_pm_resume_noirq(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct pci_driver *drv = pci_dev->driver; + int error = 0; + + pci_fixup_device(pci_fixup_resume_early, pci_dev); + + if (drv && drv->pm) { + if (drv->pm->resume_noirq) + error = drv->pm->resume_noirq(dev); + } else { + error = pci_legacy_resume_early(dev); + } + + return error; +} + +#else /* !CONFIG_SUSPEND */ + +#define pci_pm_suspend NULL +#define pci_pm_suspend_noirq NULL +#define pci_pm_resume NULL +#define pci_pm_resume_noirq NULL + +#endif /* !CONFIG_SUSPEND */ + +#ifdef CONFIG_HIBERNATION + +static int pci_pm_freeze(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct device_driver *drv = dev->driver; + int error = 0; + + if (drv && drv->pm) { + if (drv->pm->freeze) { + error = drv->pm->freeze(dev); + suspend_report_result(drv->pm->freeze, error); + } else { + pci_default_pm_suspend(pci_dev); + } + } else { + error = pci_legacy_suspend(dev, PMSG_FREEZE); + pci_fixup_device(pci_fixup_suspend, pci_dev); + } + + return error; +} + +static int pci_pm_freeze_noirq(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct pci_driver *drv = pci_dev->driver; + int error = 0; + + if (drv && drv->pm) { + if (drv->pm->freeze_noirq) { + error = drv->pm->freeze_noirq(dev); + suspend_report_result(drv->pm->freeze_noirq, error); + } + } else { + error = pci_legacy_suspend_late(dev, PMSG_FREEZE); + } + + return error; +} + +static int pci_pm_thaw(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int error = 0; + + if (drv && drv->pm) { + if (drv->pm->thaw) + error = drv->pm->thaw(dev); + } else { + pci_fixup_device(pci_fixup_resume, to_pci_dev(dev)); + error = pci_legacy_resume(dev); + } + + return error; +} + +static int pci_pm_thaw_noirq(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct pci_driver *drv = pci_dev->driver; + int error = 0; + + if (drv && drv->pm) { + if (drv->pm->thaw_noirq) + error = drv->pm->thaw_noirq(dev); + } else { + pci_fixup_device(pci_fixup_resume_early, pci_dev); + error = pci_legacy_resume_early(dev); + } + + return error; +} + +static int pci_pm_poweroff(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int error = 0; + + pci_fixup_device(pci_fixup_suspend, to_pci_dev(dev)); + + if (drv && drv->pm) { + if (drv->pm->poweroff) { + error = drv->pm->poweroff(dev); + suspend_report_result(drv->pm->poweroff, error); + } + } else { + error = pci_legacy_suspend(dev, PMSG_HIBERNATE); + } + + return error; +} + +static int pci_pm_poweroff_noirq(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct pci_driver *drv = pci_dev->driver; + int error = 0; + + if (drv && drv->pm) { + if (drv->pm->poweroff_noirq) { + error = drv->pm->poweroff_noirq(dev); + suspend_report_result(drv->pm->poweroff_noirq, error); + } + } else { + error = pci_legacy_suspend_late(dev, PMSG_HIBERNATE); + } + + return error; +} + +static int pci_pm_restore(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct device_driver *drv = dev->driver; + int error; + + if (drv && drv->pm) { + error = drv->pm->restore ? drv->pm->restore(dev) : + pci_default_pm_resume(pci_dev); + } else { + error = pci_legacy_resume(dev); + } + pci_fixup_device(pci_fixup_resume, pci_dev); + + return error; +} + +static int pci_pm_restore_noirq(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct pci_driver *drv = pci_dev->driver; + int error = 0; + + pci_fixup_device(pci_fixup_resume, pci_dev); + + if (drv && drv->pm) { + if (drv->pm->restore_noirq) + error = drv->pm->restore_noirq(dev); + } else { + error = pci_legacy_resume_early(dev); + } + pci_fixup_device(pci_fixup_resume_early, pci_dev); + + return error; +} + +#else /* !CONFIG_HIBERNATION */ + +#define pci_pm_freeze NULL +#define pci_pm_freeze_noirq NULL +#define pci_pm_thaw NULL +#define pci_pm_thaw_noirq NULL +#define pci_pm_poweroff NULL +#define pci_pm_poweroff_noirq NULL +#define pci_pm_restore NULL +#define pci_pm_restore_noirq NULL + +#endif /* !CONFIG_HIBERNATION */ + +struct pm_ext_ops pci_pm_ops = { + .base = { + .prepare = pci_pm_prepare, + .complete = pci_pm_complete, + .suspend = pci_pm_suspend, + .resume = pci_pm_resume, + .freeze = pci_pm_freeze, + .thaw = pci_pm_thaw, + .poweroff = pci_pm_poweroff, + .restore = pci_pm_restore, + }, + .suspend_noirq = pci_pm_suspend_noirq, + .resume_noirq = pci_pm_resume_noirq, + .freeze_noirq = pci_pm_freeze_noirq, + .thaw_noirq = pci_pm_thaw_noirq, + .poweroff_noirq = pci_pm_poweroff_noirq, + .restore_noirq = pci_pm_restore_noirq, +}; + +#define PCI_PM_OPS_PTR &pci_pm_ops + +#else /* !CONFIG_PM_SLEEP */ + +#define PCI_PM_OPS_PTR NULL + +#endif /* !CONFIG_PM_SLEEP */ + /** * __pci_register_driver - register a new pci driver * @drv: the driver structure to register @@ -386,6 +690,9 @@ int __pci_register_driver(struct pci_driver *drv, struct module *owner, drv->driver.owner = owner; drv->driver.mod_name = mod_name; + if (drv->pm) + drv->driver.pm = &drv->pm->base; + spin_lock_init(&drv->dynids.lock); INIT_LIST_HEAD(&drv->dynids.list); @@ -511,12 +818,9 @@ struct bus_type pci_bus_type = { .uevent = pci_uevent, .probe = pci_device_probe, .remove = pci_device_remove, - .suspend = pci_device_suspend, - .suspend_late = pci_device_suspend_late, - .resume_early = pci_device_resume_early, - .resume = pci_device_resume, .shutdown = pci_device_shutdown, .dev_attrs = pci_dev_attrs, + .pm = PCI_PM_OPS_PTR, }; static int __init pci_driver_init(void) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e4548ab2a93c..7869f8f75c9e 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1,6 +1,4 @@ /* - * $Id: pci.c,v 1.91 1999/01/21 13:34:01 davem Exp $ - * * PCI Bus Services, see include/linux/pci.h for further explanation. * * Copyright 1993 -- 1997 Drew Eckhardt, Frederic Potter, @@ -508,7 +506,7 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) return 0; } -pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state); +pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev); /** * pci_choose_state - Choose the power state of a PCI device @@ -528,7 +526,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) return PCI_D0; if (platform_pci_choose_state) { - ret = platform_pci_choose_state(dev, state); + ret = platform_pci_choose_state(dev); if (ret != PCI_POWER_ERROR) return ret; } diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 0a497c1b4227..e0eff35825a6 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -6,8 +6,7 @@ extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev); extern void pci_cleanup_rom(struct pci_dev *dev); /* Firmware callbacks */ -extern pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev, - pm_message_t state); +extern pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev); extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state); @@ -106,3 +105,16 @@ pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev) } struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev); + +/* PCI slot sysfs helper code */ +#define to_pci_slot(s) container_of(s, struct pci_slot, kobj) + +extern struct kset *pci_slots_kset; + +struct pci_slot_attribute { + struct attribute attr; + ssize_t (*show)(struct pci_slot *, char *); + ssize_t (*store)(struct pci_slot *, const char *, size_t); +}; +#define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr) + diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c index 07c3bdb6edc2..b7a3aa602d40 100644 --- a/drivers/pci/pcie/aer/aerdrv.c +++ b/drivers/pci/pcie/aer/aerdrv.c @@ -26,6 +26,7 @@ #include <linux/pcieport_if.h> #include "aerdrv.h" +#include "../../pci.h" /* * Version Information diff --git a/drivers/pci/pcie/portdrv_bus.c b/drivers/pci/pcie/portdrv_bus.c index 3f0976868eda..359fe5568df1 100644 --- a/drivers/pci/pcie/portdrv_bus.c +++ b/drivers/pci/pcie/portdrv_bus.c @@ -13,6 +13,7 @@ #include <linux/pm.h> #include <linux/pcieport_if.h> +#include "portdrv.h" static int pcie_port_bus_match(struct device *dev, struct device_driver *drv); static int pcie_port_bus_suspend(struct device *dev, pm_message_t state); diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 3706ce7972dd..4562827b7e22 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -414,6 +414,7 @@ static struct pci_bus * pci_alloc_bus(void) INIT_LIST_HEAD(&b->node); INIT_LIST_HEAD(&b->children); INIT_LIST_HEAD(&b->devices); + INIT_LIST_HEAD(&b->slots); } return b; } @@ -857,6 +858,49 @@ int pci_cfg_space_size_ext(struct pci_dev *dev) return PCI_CFG_SPACE_SIZE; } +/** + * pci_disable_pme - Disable the PME function of PCI device + * @dev: PCI device affected + * -EINVAL is returned if PCI device doesn't support PME. + * Zero is returned if the PME is supported and can be disabled. + */ +static int pci_disable_pme(struct pci_dev *dev) +{ + int pm; + u16 value; + + /* find PCI PM capability in list */ + pm = pci_find_capability(dev, PCI_CAP_ID_PM); + + /* If device doesn't support PM Capabilities, it means that PME is + * not supported. + */ + if (!pm) + return -EINVAL; + /* Check device's ability to generate PME# */ + pci_read_config_word(dev, pm + PCI_PM_PMC, &value); + + value &= PCI_PM_CAP_PME_MASK; + /* Check if it can generate PME# */ + if (!value) { + /* + * If it is zero, it means that PME is still unsupported + * although there exists the PM capability. + */ + return -EINVAL; + } + + pci_read_config_word(dev, pm + PCI_PM_CTRL, &value); + + /* Clear PME_Status by writing 1 to it */ + value |= PCI_PM_CTRL_PME_STATUS ; + /* Disable PME enable bit */ + value &= ~PCI_PM_CTRL_PME_ENABLE; + pci_write_config_word(dev, pm + PCI_PM_CTRL, value); + + return 0; +} + int pci_cfg_space_size(struct pci_dev *dev) { int pos; @@ -964,6 +1008,7 @@ static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn) } pci_vpd_pci22_init(dev); + pci_disable_pme(dev); return dev; } diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index 963a97642ae9..4400dffbd93a 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -1,6 +1,4 @@ /* - * $Id: proc.c,v 1.13 1998/05/12 07:36:07 mj Exp $ - * * Procfs interface for the PCI bus. * * Copyright (c) 1997--1999 Martin Mares <mj@ucw.cz> @@ -482,5 +480,5 @@ static int __init pci_proc_init(void) return 0; } -__initcall(pci_proc_init); +device_initcall(pci_proc_init); diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index dabb563f51d9..92b52ebd0eb6 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -556,7 +556,7 @@ static void quirk_via_ioapic(struct pci_dev *dev) pci_write_config_byte (dev, 0x58, tmp); } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); /* * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit. @@ -576,7 +576,7 @@ static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); /* * The AMD io apic can hang the box when an apic irq is masked. @@ -622,7 +622,7 @@ static void quirk_amd_8131_ioapic(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic); #endif /* CONFIG_X86_IO_APIC */ /* @@ -774,7 +774,7 @@ static void quirk_cardbus_legacy(struct pci_dev *dev) pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0); } DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy); -DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy); /* * Following the PCI ordering rules is optional on the AMD762. I'm not @@ -797,7 +797,7 @@ static void quirk_amd_ordering(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering); /* * DreamWorks provided workaround for Dunord I-3000 problem @@ -865,7 +865,7 @@ static void quirk_disable_pxb(struct pci_dev *pdev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb); static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev) { @@ -885,9 +885,9 @@ static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev) } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); /* * Serverworks CSB5 IDE does not fully support native mode @@ -1054,6 +1054,20 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev) * its on-board VGA controller */ asus_hides_smbus = 1; } + else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_IG) + switch(dev->subsystem_device) { + case 0x00b8: /* Compaq Evo D510 CMT */ + case 0x00b9: /* Compaq Evo D510 SFF */ + asus_hides_smbus = 1; + } + else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC) + switch (dev->subsystem_device) { + case 0x001A: /* Compaq Deskpro EN SSF P667 815E */ + /* Motherboard doesn't have host bridge + * subvendor/subdevice IDs, therefore checking + * its on-board VGA controller */ + asus_hides_smbus = 1; + } } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge); @@ -1068,6 +1082,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, as DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_IG, asus_hides_smbus_hostbridge); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge); static void asus_hides_smbus_lpc(struct pci_dev *dev) { @@ -1093,31 +1109,61 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asu DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc); -static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev) +/* It appears we just have one such device. If not, we have a warning */ +static void __iomem *asus_rcba_base; +static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev) { - u32 val, rcba; - void __iomem *base; + u32 rcba; if (likely(!asus_hides_smbus)) return; + WARN_ON(asus_rcba_base); + pci_read_config_dword(dev, 0xF0, &rcba); - base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); /* use bits 31:14, 16 kB aligned */ - if (base == NULL) return; - val=readl(base + 0x3418); /* read the Function Disable register, dword mode only */ - writel(val & 0xFFFFFFF7, base + 0x3418); /* enable the SMBus device */ - iounmap(base); + /* use bits 31:14, 16 kB aligned */ + asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); + if (asus_rcba_base == NULL) + return; +} + +static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev) +{ + u32 val; + + if (likely(!asus_hides_smbus || !asus_rcba_base)) + return; + /* read the Function Disable register, dword mode only */ + val = readl(asus_rcba_base + 0x3418); + writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */ +} + +static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev) +{ + if (likely(!asus_hides_smbus || !asus_rcba_base)) + return; + iounmap(asus_rcba_base); + asus_rcba_base = NULL; dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n"); } + +static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev) +{ + asus_hides_smbus_lpc_ich6_suspend(dev); + asus_hides_smbus_lpc_ich6_resume_early(dev); + asus_hides_smbus_lpc_ich6_resume(dev); +} DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6); +DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early); /* * SiS 96x south bridge: BIOS typically hides SMBus device... @@ -1135,10 +1181,10 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus); /* * ... This is further complicated by the fact that some SiS96x south @@ -1172,7 +1218,7 @@ static void quirk_sis_503(struct pci_dev *dev) quirk_sis_96x_smbus(dev); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503); /* @@ -1205,7 +1251,7 @@ static void asus_hides_ac97_lpc(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc); #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE) @@ -1270,12 +1316,12 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, qui DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); #endif @@ -1521,6 +1567,10 @@ extern struct pci_fixup __start_pci_fixups_enable[]; extern struct pci_fixup __end_pci_fixups_enable[]; extern struct pci_fixup __start_pci_fixups_resume[]; extern struct pci_fixup __end_pci_fixups_resume[]; +extern struct pci_fixup __start_pci_fixups_resume_early[]; +extern struct pci_fixup __end_pci_fixups_resume_early[]; +extern struct pci_fixup __start_pci_fixups_suspend[]; +extern struct pci_fixup __end_pci_fixups_suspend[]; void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) @@ -1553,6 +1603,16 @@ void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) end = __end_pci_fixups_resume; break; + case pci_fixup_resume_early: + start = __start_pci_fixups_resume_early; + end = __end_pci_fixups_resume_early; + break; + + case pci_fixup_suspend: + start = __start_pci_fixups_suspend; + end = __end_pci_fixups_suspend; + break; + default: /* stupid compiler warning, you would think with an enum... */ return; @@ -1629,7 +1689,7 @@ static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev) } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, quirk_nvidia_ck804_pcie_aer_ext_cap); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, quirk_nvidia_ck804_pcie_aer_ext_cap); static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev) diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c new file mode 100644 index 000000000000..7e5b85cbd948 --- /dev/null +++ b/drivers/pci/slot.c @@ -0,0 +1,233 @@ +/* + * drivers/pci/slot.c + * Copyright (C) 2006 Matthew Wilcox <matthew@wil.cx> + * Copyright (C) 2006-2008 Hewlett-Packard Development Company, L.P. + * Alex Chiang <achiang@hp.com> + */ + +#include <linux/kobject.h> +#include <linux/pci.h> +#include <linux/err.h> +#include "pci.h" + +struct kset *pci_slots_kset; +EXPORT_SYMBOL_GPL(pci_slots_kset); + +static ssize_t pci_slot_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + struct pci_slot *slot = to_pci_slot(kobj); + struct pci_slot_attribute *attribute = to_pci_slot_attr(attr); + return attribute->show ? attribute->show(slot, buf) : -EIO; +} + +static ssize_t pci_slot_attr_store(struct kobject *kobj, + struct attribute *attr, const char *buf, size_t len) +{ + struct pci_slot *slot = to_pci_slot(kobj); + struct pci_slot_attribute *attribute = to_pci_slot_attr(attr); + return attribute->store ? attribute->store(slot, buf, len) : -EIO; +} + +static struct sysfs_ops pci_slot_sysfs_ops = { + .show = pci_slot_attr_show, + .store = pci_slot_attr_store, +}; + +static ssize_t address_read_file(struct pci_slot *slot, char *buf) +{ + if (slot->number == 0xff) + return sprintf(buf, "%04x:%02x\n", + pci_domain_nr(slot->bus), + slot->bus->number); + else + return sprintf(buf, "%04x:%02x:%02x\n", + pci_domain_nr(slot->bus), + slot->bus->number, + slot->number); +} + +static void pci_slot_release(struct kobject *kobj) +{ + struct pci_slot *slot = to_pci_slot(kobj); + + pr_debug("%s: releasing pci_slot on %x:%d\n", __func__, + slot->bus->number, slot->number); + + list_del(&slot->list); + + kfree(slot); +} + +static struct pci_slot_attribute pci_slot_attr_address = + __ATTR(address, (S_IFREG | S_IRUGO), address_read_file, NULL); + +static struct attribute *pci_slot_default_attrs[] = { + &pci_slot_attr_address.attr, + NULL, +}; + +static struct kobj_type pci_slot_ktype = { + .sysfs_ops = &pci_slot_sysfs_ops, + .release = &pci_slot_release, + .default_attrs = pci_slot_default_attrs, +}; + +/** + * pci_create_slot - create or increment refcount for physical PCI slot + * @parent: struct pci_bus of parent bridge + * @slot_nr: PCI_SLOT(pci_dev->devfn) or -1 for placeholder + * @name: user visible string presented in /sys/bus/pci/slots/<name> + * + * PCI slots have first class attributes such as address, speed, width, + * and a &struct pci_slot is used to manage them. This interface will + * either return a new &struct pci_slot to the caller, or if the pci_slot + * already exists, its refcount will be incremented. + * + * Slots are uniquely identified by a @pci_bus, @slot_nr, @name tuple. + * + * Placeholder slots: + * In most cases, @pci_bus, @slot_nr will be sufficient to uniquely identify + * a slot. There is one notable exception - pSeries (rpaphp), where the + * @slot_nr cannot be determined until a device is actually inserted into + * the slot. In this scenario, the caller may pass -1 for @slot_nr. + * + * The following semantics are imposed when the caller passes @slot_nr == + * -1. First, the check for existing %struct pci_slot is skipped, as the + * caller may know about several unpopulated slots on a given %struct + * pci_bus, and each slot would have a @slot_nr of -1. Uniqueness for + * these slots is then determined by the @name parameter. We expect + * kobject_init_and_add() to warn us if the caller attempts to create + * multiple slots with the same name. The other change in semantics is + * user-visible, which is the 'address' parameter presented in sysfs will + * consist solely of a dddd:bb tuple, where dddd is the PCI domain of the + * %struct pci_bus and bb is the bus number. In other words, the devfn of + * the 'placeholder' slot will not be displayed. + */ + +struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr, + const char *name) +{ + struct pci_slot *slot; + int err; + + down_write(&pci_bus_sem); + + if (slot_nr == -1) + goto placeholder; + + /* If we've already created this slot, bump refcount and return. */ + list_for_each_entry(slot, &parent->slots, list) { + if (slot->number == slot_nr) { + kobject_get(&slot->kobj); + pr_debug("%s: inc refcount to %d on %04x:%02x:%02x\n", + __func__, + atomic_read(&slot->kobj.kref.refcount), + pci_domain_nr(parent), parent->number, + slot_nr); + goto out; + } + } + +placeholder: + slot = kzalloc(sizeof(*slot), GFP_KERNEL); + if (!slot) { + slot = ERR_PTR(-ENOMEM); + goto out; + } + + slot->bus = parent; + slot->number = slot_nr; + + slot->kobj.kset = pci_slots_kset; + err = kobject_init_and_add(&slot->kobj, &pci_slot_ktype, NULL, + "%s", name); + if (err) { + printk(KERN_ERR "Unable to register kobject %s\n", name); + goto err; + } + + INIT_LIST_HEAD(&slot->list); + list_add(&slot->list, &parent->slots); + + /* Don't care if debug printk has a -1 for slot_nr */ + pr_debug("%s: created pci_slot on %04x:%02x:%02x\n", + __func__, pci_domain_nr(parent), parent->number, slot_nr); + + out: + up_write(&pci_bus_sem); + return slot; + err: + kfree(slot); + slot = ERR_PTR(err); + goto out; +} +EXPORT_SYMBOL_GPL(pci_create_slot); + +/** + * pci_update_slot_number - update %struct pci_slot -> number + * @slot - %struct pci_slot to update + * @slot_nr - new number for slot + * + * The primary purpose of this interface is to allow callers who earlier + * created a placeholder slot in pci_create_slot() by passing a -1 as + * slot_nr, to update their %struct pci_slot with the correct @slot_nr. + */ + +void pci_update_slot_number(struct pci_slot *slot, int slot_nr) +{ + int name_count = 0; + struct pci_slot *tmp; + + down_write(&pci_bus_sem); + + list_for_each_entry(tmp, &slot->bus->slots, list) { + WARN_ON(tmp->number == slot_nr); + if (!strcmp(kobject_name(&tmp->kobj), kobject_name(&slot->kobj))) + name_count++; + } + + if (name_count > 1) + printk(KERN_WARNING "pci_update_slot_number found %d slots with the same name: %s\n", name_count, kobject_name(&slot->kobj)); + + slot->number = slot_nr; + up_write(&pci_bus_sem); +} +EXPORT_SYMBOL_GPL(pci_update_slot_number); + +/** + * pci_destroy_slot - decrement refcount for physical PCI slot + * @slot: struct pci_slot to decrement + * + * %struct pci_slot is refcounted, so destroying them is really easy; we + * just call kobject_put on its kobj and let our release methods do the + * rest. + */ + +void pci_destroy_slot(struct pci_slot *slot) +{ + pr_debug("%s: dec refcount to %d on %04x:%02x:%02x\n", __func__, + atomic_read(&slot->kobj.kref.refcount) - 1, + pci_domain_nr(slot->bus), slot->bus->number, slot->number); + + down_write(&pci_bus_sem); + kobject_put(&slot->kobj); + up_write(&pci_bus_sem); +} +EXPORT_SYMBOL_GPL(pci_destroy_slot); + +static int pci_slot_init(void) +{ + struct kset *pci_bus_kset; + + pci_bus_kset = bus_get_kset(&pci_bus_type); + pci_slots_kset = kset_create_and_add("slots", NULL, + &pci_bus_kset->kobj); + if (!pci_slots_kset) { + printk(KERN_ERR "PCI: Slot initialization failure\n"); + return -ENOMEM; + } + return 0; +} + +subsys_initcall(pci_slot_init); diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 50902773beaf..c1b9ea34977b 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -117,9 +117,7 @@ static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state) { int power_state; - power_state = acpi_pm_device_sleep_state(&dev->dev, - device_may_wakeup(&dev->dev), - NULL); + power_state = acpi_pm_device_sleep_state(&dev->dev, NULL); if (power_state < 0) power_state = (state.event == PM_EVENT_ON) ? ACPI_STATE_D0 : ACPI_STATE_D3; diff --git a/drivers/power/apm_power.c b/drivers/power/apm_power.c index a4892275659d..936bae560fa1 100644 --- a/drivers/power/apm_power.c +++ b/drivers/power/apm_power.c @@ -78,7 +78,7 @@ static void find_main_battery(void) main_battery = NULL; bp.main = main_battery; - error = class_for_each_device(power_supply_class, &bp, + error = class_for_each_device(power_supply_class, NULL, &bp, __find_main_battery); if (error) { main_battery = bp.main; diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index af1633eb3b70..cb1ccb472921 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -41,7 +41,7 @@ static void power_supply_changed_work(struct work_struct *work) dev_dbg(psy->dev, "%s\n", __func__); - class_for_each_device(power_supply_class, psy, + class_for_each_device(power_supply_class, NULL, psy, __power_supply_changed_work); power_supply_update_leds(psy); @@ -79,7 +79,7 @@ int power_supply_am_i_supplied(struct power_supply *psy) { int error; - error = class_for_each_device(power_supply_class, psy, + error = class_for_each_device(power_supply_class, NULL, psy, __power_supply_am_i_supplied); dev_dbg(psy->dev, "%s %d\n", __func__, error); diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 7e3ad4f3b343..75676b432d7b 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -265,7 +265,7 @@ struct rtc_device *rtc_class_open(char *name) struct device *dev; struct rtc_device *rtc = NULL; - dev = class_find_device(rtc_class, name, __rtc_match); + dev = class_find_device(rtc_class, NULL, name, __rtc_match); if (dev) rtc = to_rtc_device(dev); diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index 82f62d25f921..67421b0d3a7b 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -331,14 +331,14 @@ static int sa1100_rtc_probe(struct platform_device *pdev) RCNR = 0; } + device_init_wakeup(&pdev->dev, 1); + rtc = rtc_device_register(pdev->name, &pdev->dev, &sa1100_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) return PTR_ERR(rtc); - device_init_wakeup(&pdev->dev, 1); - platform_set_drvdata(pdev, rtc); return 0; diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 1a4025683362..c1d180cbb0c4 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -215,7 +215,7 @@ static int dasd_state_known_to_basic(struct dasd_device *device) return rc; } /* register 'device' debug area, used for all DBF_DEV_XXX calls */ - device->debug_area = debug_register(device->cdev->dev.bus_id, 1, 1, + device->debug_area = debug_register(dev_name(&device->cdev->dev), 1, 1, 8 * sizeof(long)); debug_register_view(device->debug_area, &debug_sprintf_view); debug_set_level(device->debug_area, DBF_WARNING); @@ -933,7 +933,7 @@ static void dasd_handle_killed_request(struct ccw_device *cdev, MESSAGE(KERN_DEBUG, "invalid status in handle_killed_request: " "bus_id %s, status %02x", - cdev->dev.bus_id, cqr->status); + dev_name(&cdev->dev), cqr->status); return; } @@ -942,7 +942,7 @@ static void dasd_handle_killed_request(struct ccw_device *cdev, device != dasd_device_from_cdev_locked(cdev) || strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) { MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s", - cdev->dev.bus_id); + dev_name(&cdev->dev)); return; } @@ -982,11 +982,11 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, break; case -ETIMEDOUT: printk(KERN_WARNING"%s(%s): request timed out\n", - __func__, cdev->dev.bus_id); + __func__, dev_name(&cdev->dev)); break; default: printk(KERN_WARNING"%s(%s): unknown error %ld\n", - __func__, cdev->dev.bus_id, PTR_ERR(irb)); + __func__, dev_name(&cdev->dev), PTR_ERR(irb)); } dasd_handle_killed_request(cdev, intparm); return; @@ -995,14 +995,14 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, now = get_clock(); DBF_EVENT(DBF_ERR, "Interrupt: bus_id %s CS/DS %04x ip %08x", - cdev->dev.bus_id, ((irb->scsw.cstat<<8)|irb->scsw.dstat), - (unsigned int) intparm); + dev_name(&cdev->dev), ((irb->scsw.cmd.cstat << 8) | + irb->scsw.cmd.dstat), (unsigned int) intparm); /* check for unsolicited interrupts */ cqr = (struct dasd_ccw_req *) intparm; - if (!cqr || ((irb->scsw.cc == 1) && - (irb->scsw.fctl & SCSW_FCTL_START_FUNC) && - (irb->scsw.stctl & SCSW_STCTL_STATUS_PEND)) ) { + if (!cqr || ((irb->scsw.cmd.cc == 1) && + (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC) && + (irb->scsw.cmd.stctl & SCSW_STCTL_STATUS_PEND))) { if (cqr && cqr->status == DASD_CQR_IN_IO) cqr->status = DASD_CQR_QUEUED; device = dasd_device_from_cdev_locked(cdev); @@ -1019,13 +1019,13 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, if (!device || strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) { MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s", - cdev->dev.bus_id); + dev_name(&cdev->dev)); return; } /* Check for clear pending */ if (cqr->status == DASD_CQR_CLEAR_PENDING && - irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC) { + irb->scsw.cmd.fctl & SCSW_FCTL_CLEAR_FUNC) { cqr->status = DASD_CQR_CLEARED; dasd_device_clear_timer(device); wake_up(&dasd_flush_wq); @@ -1037,15 +1037,15 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, if (cqr->status != DASD_CQR_IN_IO) { MESSAGE(KERN_DEBUG, "invalid status: bus_id %s, status %02x", - cdev->dev.bus_id, cqr->status); + dev_name(&cdev->dev), cqr->status); return; } DBF_DEV_EVENT(DBF_DEBUG, device, "Int: CS/DS 0x%04x for cqr %p", - ((irb->scsw.cstat << 8) | irb->scsw.dstat), cqr); + ((irb->scsw.cmd.cstat << 8) | irb->scsw.cmd.dstat), cqr); next = NULL; expires = 0; - if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) && - irb->scsw.cstat == 0 && !irb->esw.esw0.erw.cons) { + if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) && + irb->scsw.cmd.cstat == 0 && !irb->esw.esw0.erw.cons) { /* request was completed successfully */ cqr->status = DASD_CQR_SUCCESS; cqr->stopclk = now; @@ -2134,14 +2134,14 @@ int dasd_generic_probe(struct ccw_device *cdev, if (ret) { printk(KERN_WARNING "dasd_generic_probe: could not set ccw-device options " - "for %s\n", cdev->dev.bus_id); + "for %s\n", dev_name(&cdev->dev)); return ret; } ret = dasd_add_sysfs_files(cdev); if (ret) { printk(KERN_WARNING "dasd_generic_probe: could not add sysfs entries " - "for %s\n", cdev->dev.bus_id); + "for %s\n", dev_name(&cdev->dev)); return ret; } cdev->handler = &dasd_int_handler; @@ -2152,13 +2152,13 @@ int dasd_generic_probe(struct ccw_device *cdev, * initial probe. */ if ((dasd_get_feature(cdev, DASD_FEATURE_INITIAL_ONLINE) > 0 ) || - (dasd_autodetect && dasd_busid_known(cdev->dev.bus_id) != 0)) + (dasd_autodetect && dasd_busid_known(dev_name(&cdev->dev)) != 0)) ret = ccw_device_set_online(cdev); if (ret) printk(KERN_WARNING "dasd_generic_probe: could not initially " "online ccw-device %s; return code: %d\n", - cdev->dev.bus_id, ret); + dev_name(&cdev->dev), ret); return 0; } @@ -2224,7 +2224,7 @@ int dasd_generic_set_online(struct ccw_device *cdev, printk (KERN_WARNING "dasd_generic couldn't online device %s " "- discipline DIAG not available\n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); dasd_delete_device(device); return -ENODEV; } @@ -2248,7 +2248,7 @@ int dasd_generic_set_online(struct ccw_device *cdev, printk (KERN_WARNING "dasd_generic couldn't online device %s " "with discipline %s rc=%i\n", - cdev->dev.bus_id, discipline->name, rc); + dev_name(&cdev->dev), discipline->name, rc); module_put(discipline->owner); module_put(base_discipline->owner); dasd_delete_device(device); @@ -2259,7 +2259,7 @@ int dasd_generic_set_online(struct ccw_device *cdev, if (device->state <= DASD_STATE_KNOWN) { printk (KERN_WARNING "dasd_generic discipline not found for %s\n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); rc = -ENODEV; dasd_set_target_state(device, DASD_STATE_NEW); if (device->block) @@ -2267,7 +2267,7 @@ int dasd_generic_set_online(struct ccw_device *cdev, dasd_delete_device(device); } else pr_debug("dasd_generic device %s found\n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); /* FIXME: we have to wait for the root device but we don't want * to wait for each single device but for all at once. */ diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c index e6700df52df4..b8f9c00633f3 100644 --- a/drivers/s390/block/dasd_3990_erp.c +++ b/drivers/s390/block/dasd_3990_erp.c @@ -1397,7 +1397,7 @@ static struct dasd_ccw_req *dasd_3990_erp_inspect_alias( DEV_MESSAGE(KERN_ERR, cqr->startdev, "ERP on alias device for request %p," " recover on base device %s", cqr, - cqr->block->base->cdev->dev.bus_id); + dev_name(&cqr->block->base->cdev->dev)); } dasd_eckd_reset_ccw_to_base_io(cqr); erp->startdev = cqr->block->base; @@ -1572,7 +1572,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense) /* determine the address of the CCW to be restarted */ /* Imprecise ending is not set -> addr from IRB-SCSW */ - cpa = default_erp->refers->irb.scsw.cpa; + cpa = default_erp->refers->irb.scsw.cmd.cpa; if (cpa == 0) { @@ -1725,7 +1725,7 @@ dasd_3990_update_1B(struct dasd_ccw_req * previous_erp, char *sense) /* determine the address of the CCW to be restarted */ /* Imprecise ending is not set -> addr from IRB-SCSW */ - cpa = previous_erp->irb.scsw.cpa; + cpa = previous_erp->irb.scsw.cmd.cpa; if (cpa == 0) { @@ -2171,7 +2171,7 @@ dasd_3990_erp_control_check(struct dasd_ccw_req *erp) { struct dasd_device *device = erp->startdev; - if (erp->refers->irb.scsw.cstat & (SCHN_STAT_INTF_CTRL_CHK + if (erp->refers->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK | SCHN_STAT_CHN_CTRL_CHK)) { DEV_MESSAGE(KERN_DEBUG, device, "%s", "channel or interface control check"); @@ -2352,9 +2352,9 @@ dasd_3990_erp_error_match(struct dasd_ccw_req *cqr1, struct dasd_ccw_req *cqr2) if ((cqr1->irb.esw.esw0.erw.cons == 0) && (cqr2->irb.esw.esw0.erw.cons == 0)) { - if ((cqr1->irb.scsw.cstat & (SCHN_STAT_INTF_CTRL_CHK | + if ((cqr1->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK | SCHN_STAT_CHN_CTRL_CHK)) == - (cqr2->irb.scsw.cstat & (SCHN_STAT_INTF_CTRL_CHK | + (cqr2->irb.scsw.cmd.cstat & (SCHN_STAT_INTF_CTRL_CHK | SCHN_STAT_CHN_CTRL_CHK))) return 1; /* match with ifcc*/ } @@ -2622,8 +2622,9 @@ dasd_3990_erp_action(struct dasd_ccw_req * cqr) } /* double-check if current erp/cqr was successfull */ - if ((cqr->irb.scsw.cstat == 0x00) && - (cqr->irb.scsw.dstat == (DEV_STAT_CHN_END|DEV_STAT_DEV_END))) { + if ((cqr->irb.scsw.cmd.cstat == 0x00) && + (cqr->irb.scsw.cmd.dstat == + (DEV_STAT_CHN_END | DEV_STAT_DEV_END))) { DEV_MESSAGE(KERN_DEBUG, device, "ERP called for successful request %p" diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index d774e79476fe..794d1d472beb 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -515,9 +515,9 @@ dasd_devmap_from_cdev(struct ccw_device *cdev) { struct dasd_devmap *devmap; - devmap = dasd_find_busid(cdev->dev.bus_id); + devmap = dasd_find_busid(dev_name(&cdev->dev)); if (IS_ERR(devmap)) - devmap = dasd_add_busid(cdev->dev.bus_id, + devmap = dasd_add_busid(dev_name(&cdev->dev), DASD_FEATURE_DEFAULT); return devmap; } @@ -584,7 +584,7 @@ dasd_delete_device(struct dasd_device *device) unsigned long flags; /* First remove device pointer from devmap. */ - devmap = dasd_find_busid(device->cdev->dev.bus_id); + devmap = dasd_find_busid(dev_name(&device->cdev->dev)); BUG_ON(IS_ERR(devmap)); spin_lock(&dasd_devmap_lock); if (devmap->device != device) { @@ -674,7 +674,7 @@ dasd_ro_show(struct device *dev, struct device_attribute *attr, char *buf) struct dasd_devmap *devmap; int ro_flag; - devmap = dasd_find_busid(dev->bus_id); + devmap = dasd_find_busid(dev_name(dev)); if (!IS_ERR(devmap)) ro_flag = (devmap->features & DASD_FEATURE_READONLY) != 0; else @@ -723,7 +723,7 @@ dasd_erplog_show(struct device *dev, struct device_attribute *attr, char *buf) struct dasd_devmap *devmap; int erplog; - devmap = dasd_find_busid(dev->bus_id); + devmap = dasd_find_busid(dev_name(dev)); if (!IS_ERR(devmap)) erplog = (devmap->features & DASD_FEATURE_ERPLOG) != 0; else @@ -770,7 +770,7 @@ dasd_use_diag_show(struct device *dev, struct device_attribute *attr, char *buf) struct dasd_devmap *devmap; int use_diag; - devmap = dasd_find_busid(dev->bus_id); + devmap = dasd_find_busid(dev_name(dev)); if (!IS_ERR(devmap)) use_diag = (devmap->features & DASD_FEATURE_USEDIAG) != 0; else @@ -876,7 +876,7 @@ dasd_alias_show(struct device *dev, struct device_attribute *attr, char *buf) struct dasd_devmap *devmap; int alias; - devmap = dasd_find_busid(dev->bus_id); + devmap = dasd_find_busid(dev_name(dev)); spin_lock(&dasd_devmap_lock); if (IS_ERR(devmap) || strlen(devmap->uid.vendor) == 0) { spin_unlock(&dasd_devmap_lock); @@ -899,7 +899,7 @@ dasd_vendor_show(struct device *dev, struct device_attribute *attr, char *buf) struct dasd_devmap *devmap; char *vendor; - devmap = dasd_find_busid(dev->bus_id); + devmap = dasd_find_busid(dev_name(dev)); spin_lock(&dasd_devmap_lock); if (!IS_ERR(devmap) && strlen(devmap->uid.vendor) > 0) vendor = devmap->uid.vendor; @@ -923,7 +923,7 @@ dasd_uid_show(struct device *dev, struct device_attribute *attr, char *buf) char ua_string[3]; struct dasd_uid *uid; - devmap = dasd_find_busid(dev->bus_id); + devmap = dasd_find_busid(dev_name(dev)); spin_lock(&dasd_devmap_lock); if (IS_ERR(devmap) || strlen(devmap->uid.vendor) == 0) { spin_unlock(&dasd_devmap_lock); @@ -962,7 +962,7 @@ dasd_eer_show(struct device *dev, struct device_attribute *attr, char *buf) struct dasd_devmap *devmap; int eer_flag; - devmap = dasd_find_busid(dev->bus_id); + devmap = dasd_find_busid(dev_name(dev)); if (!IS_ERR(devmap) && devmap->device) eer_flag = dasd_eer_enabled(devmap->device); else @@ -1024,7 +1024,7 @@ dasd_get_uid(struct ccw_device *cdev, struct dasd_uid *uid) { struct dasd_devmap *devmap; - devmap = dasd_find_busid(cdev->dev.bus_id); + devmap = dasd_find_busid(dev_name(&cdev->dev)); if (IS_ERR(devmap)) return PTR_ERR(devmap); spin_lock(&dasd_devmap_lock); @@ -1047,7 +1047,7 @@ dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) { struct dasd_devmap *devmap; - devmap = dasd_find_busid(cdev->dev.bus_id); + devmap = dasd_find_busid(dev_name(&cdev->dev)); if (IS_ERR(devmap)) return PTR_ERR(devmap); @@ -1067,7 +1067,7 @@ dasd_get_feature(struct ccw_device *cdev, int feature) { struct dasd_devmap *devmap; - devmap = dasd_find_busid(cdev->dev.bus_id); + devmap = dasd_find_busid(dev_name(&cdev->dev)); if (IS_ERR(devmap)) return PTR_ERR(devmap); @@ -1083,7 +1083,7 @@ dasd_set_feature(struct ccw_device *cdev, int feature, int flag) { struct dasd_devmap *devmap; - devmap = dasd_find_busid(cdev->dev.bus_id); + devmap = dasd_find_busid(dev_name(&cdev->dev)); if (IS_ERR(devmap)) return PTR_ERR(devmap); diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index a0edae091b5e..9164ada7e717 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -84,7 +84,7 @@ dasd_eckd_probe (struct ccw_device *cdev) if (ret) { printk(KERN_WARNING "dasd_eckd_probe: could not set ccw-device options " - "for %s\n", cdev->dev.bus_id); + "for %s\n", dev_name(&cdev->dev)); return ret; } ret = dasd_generic_probe(cdev, &dasd_eckd_discipline); @@ -1404,13 +1404,14 @@ static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device, /* first of all check for state change pending interrupt */ mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; - if ((irb->scsw.dstat & mask) == mask) { + if ((irb->scsw.cmd.dstat & mask) == mask) { dasd_generic_handle_state_change(device); return; } /* summary unit check */ - if ((irb->scsw.dstat & DEV_STAT_UNIT_CHECK) && irb->ecw[7] == 0x0D) { + if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) && + (irb->ecw[7] == 0x0D)) { dasd_alias_handle_summary_unit_check(device, irb); return; } @@ -2065,14 +2066,14 @@ static void dasd_eckd_dump_sense(struct dasd_device *device, /* dump the sense data */ len = sprintf(page, KERN_ERR PRINTK_HEADER " I/O status report for device %s:\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); len += sprintf(page + len, KERN_ERR PRINTK_HEADER " in req: %p CS: 0x%02X DS: 0x%02X\n", req, - irb->scsw.cstat, irb->scsw.dstat); + irb->scsw.cmd.cstat, irb->scsw.cmd.dstat); len += sprintf(page + len, KERN_ERR PRINTK_HEADER " device %s: Failing CCW: %p\n", - device->cdev->dev.bus_id, - (void *) (addr_t) irb->scsw.cpa); + dev_name(&device->cdev->dev), + (void *) (addr_t) irb->scsw.cmd.cpa); if (irb->esw.esw0.erw.cons) { for (sl = 0; sl < 4; sl++) { len += sprintf(page + len, KERN_ERR PRINTK_HEADER @@ -2122,7 +2123,8 @@ static void dasd_eckd_dump_sense(struct dasd_device *device, /* scsw->cda is either valid or zero */ len = 0; from = ++to; - fail = (struct ccw1 *)(addr_t) irb->scsw.cpa; /* failing CCW */ + fail = (struct ccw1 *)(addr_t) + irb->scsw.cmd.cpa; /* failing CCW */ if (from < fail - 2) { from = fail - 2; /* there is a gap - print header */ len += sprintf(page, KERN_ERR PRINTK_HEADER "......\n"); diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c index 6e53ab606e97..11b57d12e5a6 100644 --- a/drivers/s390/block/dasd_eer.c +++ b/drivers/s390/block/dasd_eer.c @@ -307,7 +307,7 @@ static void dasd_eer_write_standard_trigger(struct dasd_device *device, do_gettimeofday(&tv); header.tv_sec = tv.tv_sec; header.tv_usec = tv.tv_usec; - strncpy(header.busid, device->cdev->dev.bus_id, DASD_EER_BUSID_SIZE); + strncpy(header.busid, dev_name(&device->cdev->dev), DASD_EER_BUSID_SIZE); spin_lock_irqsave(&bufferlock, flags); list_for_each_entry(eerb, &bufferlist, list) { @@ -347,7 +347,7 @@ static void dasd_eer_write_snss_trigger(struct dasd_device *device, do_gettimeofday(&tv); header.tv_sec = tv.tv_sec; header.tv_usec = tv.tv_usec; - strncpy(header.busid, device->cdev->dev.bus_id, DASD_EER_BUSID_SIZE); + strncpy(header.busid, dev_name(&device->cdev->dev), DASD_EER_BUSID_SIZE); spin_lock_irqsave(&bufferlock, flags); list_for_each_entry(eerb, &bufferlist, list) { diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index 116611583df8..08db1ad41c58 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -222,7 +222,7 @@ static void dasd_fba_handle_unsolicited_interrupt(struct dasd_device *device, /* first of all check for state change pending interrupt */ mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; - if ((irb->scsw.dstat & mask) == mask) { + if ((irb->scsw.cmd.dstat & mask) == mask) { dasd_generic_handle_state_change(device); return; } @@ -446,14 +446,14 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, } len = sprintf(page, KERN_ERR PRINTK_HEADER " I/O status report for device %s:\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); len += sprintf(page + len, KERN_ERR PRINTK_HEADER " in req: %p CS: 0x%02X DS: 0x%02X\n", req, - irb->scsw.cstat, irb->scsw.dstat); + irb->scsw.cmd.cstat, irb->scsw.cmd.dstat); len += sprintf(page + len, KERN_ERR PRINTK_HEADER " device %s: Failing CCW: %p\n", - device->cdev->dev.bus_id, - (void *) (addr_t) irb->scsw.cpa); + dev_name(&device->cdev->dev), + (void *) (addr_t) irb->scsw.cmd.cpa); if (irb->esw.esw0.erw.cons) { for (sl = 0; sl < 4; sl++) { len += sprintf(page + len, KERN_ERR PRINTK_HEADER @@ -498,11 +498,11 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, /* print failing CCW area */ len = 0; - if (act < ((struct ccw1 *)(addr_t) irb->scsw.cpa) - 2) { - act = ((struct ccw1 *)(addr_t) irb->scsw.cpa) - 2; + if (act < ((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa) - 2) { + act = ((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa) - 2; len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n"); } - end = min((struct ccw1 *)(addr_t) irb->scsw.cpa + 2, last); + end = min((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa + 2, last); while (act <= end) { len += sprintf(page + len, KERN_ERR PRINTK_HEADER " CCW %p: %08X %08X DAT:", diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index fb2f931cf844..035d69155d41 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -126,7 +126,7 @@ do { \ #define DEV_MESSAGE(d_loglevel,d_device,d_string,d_args...)\ do { \ printk(d_loglevel PRINTK_HEADER " %s: " d_string "\n", \ - d_device->cdev->dev.bus_id, d_args); \ + dev_name(&d_device->cdev->dev), d_args); \ DBF_DEV_EVENT(DBF_ALERT, d_device, d_string, d_args); \ } while(0) @@ -140,7 +140,7 @@ do { \ #define DEV_MESSAGE_LOG(d_loglevel,d_device,d_string,d_args...)\ do { \ printk(d_loglevel PRINTK_HEADER " %s: " d_string "\n", \ - d_device->cdev->dev.bus_id, d_args); \ + dev_name(&d_device->cdev->dev), d_args); \ } while(0) #define MESSAGE_LOG(d_loglevel,d_string,d_args...)\ diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c index 03c0e40a92ff..6ea60f3f72c0 100644 --- a/drivers/s390/block/dasd_proc.c +++ b/drivers/s390/block/dasd_proc.c @@ -67,7 +67,7 @@ dasd_devices_show(struct seq_file *m, void *v) return 0; } /* Print device number. */ - seq_printf(m, "%s", device->cdev->dev.bus_id); + seq_printf(m, "%s", dev_name(&device->cdev->dev)); /* Print discipline string. */ if (device != NULL && device->discipline != NULL) seq_printf(m, "(%s)", device->discipline->name); diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index bb52d2fbac18..9cf04ad5ef19 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -91,7 +91,7 @@ static struct rw_semaphore dcssblk_devices_sem; static void dcssblk_release_segment(struct device *dev) { - PRINT_DEBUG("segment release fn called for %s\n", dev->bus_id); + PRINT_DEBUG("segment release fn called for %s\n", dev_name(dev)); kfree(container_of(dev, struct dcssblk_dev_info, dev)); module_put(THIS_MODULE); } @@ -349,7 +349,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char } strcpy(dev_info->segment_name, local_buf); - strlcpy(dev_info->dev.bus_id, local_buf, BUS_ID_SIZE); + dev_set_name(&dev_info->dev, local_buf); dev_info->dev.release = dcssblk_release_segment; INIT_LIST_HEAD(&dev_info->lh); @@ -604,7 +604,8 @@ dcssblk_make_request(struct request_queue *q, struct bio *bio) case SEG_TYPE_SC: /* cannot write to these segments */ if (bio_data_dir(bio) == WRITE) { - PRINT_WARN("rejecting write to ro segment %s\n", dev_info->dev.bus_id); + PRINT_WARN("rejecting write to ro segment %s\n", + dev_name(&dev_info->dev)); goto fail; } } diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 3e5653c92f4b..310eda82cde2 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -385,8 +385,8 @@ raw3215_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) raw = cdev->dev.driver_data; req = (struct raw3215_req *) intparm; - cstat = irb->scsw.cstat; - dstat = irb->scsw.dstat; + cstat = irb->scsw.cmd.cstat; + dstat = irb->scsw.cmd.dstat; if (cstat != 0) { raw->message = KERN_WARNING "Got nonzero channel status in raw3215_irq " @@ -415,7 +415,7 @@ raw3215_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) return; /* That shouldn't happen ... */ if (req->type == RAW3215_READ) { /* store residual count, then wait for device end */ - req->residual = irb->scsw.count; + req->residual = irb->scsw.cmd.count; } if (dstat == 0x08) break; diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c index 0b040557db02..3c07974886ed 100644 --- a/drivers/s390/char/con3270.c +++ b/drivers/s390/char/con3270.c @@ -411,15 +411,15 @@ static int con3270_irq(struct con3270 *cp, struct raw3270_request *rq, struct irb *irb) { /* Handle ATTN. Schedule tasklet to read aid. */ - if (irb->scsw.dstat & DEV_STAT_ATTENTION) + if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) con3270_issue_read(cp); if (rq) { - if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) rq->rc = -EIO; else /* Normal end. Copy residual count. */ - rq->rescnt = irb->scsw.count; + rq->rescnt = irb->scsw.cmd.count; } return RAW3270_IO_DONE; } diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index ef36f2132aa4..f0d67af96402 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -216,17 +216,17 @@ static int fs3270_irq(struct fs3270 *fp, struct raw3270_request *rq, struct irb *irb) { /* Handle ATTN. Set indication and wake waiters for attention. */ - if (irb->scsw.dstat & DEV_STAT_ATTENTION) { + if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) { fp->attention = 1; wake_up(&fp->wait); } if (rq) { - if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) rq->rc = -EIO; else /* Normal end. Copy residual count. */ - rq->rescnt = irb->scsw.count; + rq->rescnt = irb->scsw.cmd.count; } return RAW3270_IO_DONE; } diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index 848ef7e8523f..bd3e2dcf6b33 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -372,17 +372,17 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) if (IS_ERR(irb)) rc = RAW3270_IO_RETRY; - else if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC) { + else if (irb->scsw.cmd.fctl & SCSW_FCTL_HALT_FUNC) { rq->rc = -EIO; rc = RAW3270_IO_DONE; - } else if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END | - DEV_STAT_UNIT_EXCEP)) { + } else if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END | + DEV_STAT_UNIT_EXCEP)) { /* Handle CE-DE-UE and subsequent UDE */ set_bit(RAW3270_FLAGS_BUSY, &rp->flags); rc = RAW3270_IO_BUSY; } else if (test_bit(RAW3270_FLAGS_BUSY, &rp->flags)) { /* Wait for UDE if busy flag is set. */ - if (irb->scsw.dstat & DEV_STAT_DEV_END) { + if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) { clear_bit(RAW3270_FLAGS_BUSY, &rp->flags); /* Got it, now retry. */ rc = RAW3270_IO_RETRY; @@ -497,7 +497,7 @@ raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq, * Unit-Check Processing: * Expect Command Reject or Intervention Required. */ - if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { /* Request finished abnormally. */ if (irb->ecw[0] & SNS0_INTERVENTION_REQ) { set_bit(RAW3270_FLAGS_BUSY, &view->dev->flags); @@ -505,16 +505,16 @@ raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq, } } if (rq) { - if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { if (irb->ecw[0] & SNS0_CMD_REJECT) rq->rc = -EOPNOTSUPP; else rq->rc = -EIO; } else /* Request finished normally. Copy residual count. */ - rq->rescnt = irb->scsw.count; + rq->rescnt = irb->scsw.cmd.count; } - if (irb->scsw.dstat & DEV_STAT_ATTENTION) { + if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) { set_bit(RAW3270_FLAGS_ATTN, &view->dev->flags); wake_up(&raw3270_wait_queue); } @@ -1178,17 +1178,19 @@ static int raw3270_create_attributes(struct raw3270 *rp) if (rc) goto out; - rp->clttydev = device_create(class3270, &rp->cdev->dev, - MKDEV(IBM_TTY3270_MAJOR, rp->minor), - "tty%s", rp->cdev->dev.bus_id); + rp->clttydev = device_create_drvdata(class3270, &rp->cdev->dev, + MKDEV(IBM_TTY3270_MAJOR, rp->minor), + NULL, + "tty%s", dev_name(&rp->cdev->dev)); if (IS_ERR(rp->clttydev)) { rc = PTR_ERR(rp->clttydev); goto out_ttydev; } - rp->cltubdev = device_create(class3270, &rp->cdev->dev, - MKDEV(IBM_FS3270_MAJOR, rp->minor), - "tub%s", rp->cdev->dev.bus_id); + rp->cltubdev = device_create_drvdata(class3270, &rp->cdev->dev, + MKDEV(IBM_FS3270_MAJOR, rp->minor), + NULL, + "tub%s", dev_name(&rp->cdev->dev)); if (!IS_ERR(rp->cltubdev)) goto out; diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c index 2c7a1ee6b041..277f9ccfbb7c 100644 --- a/drivers/s390/char/sclp.c +++ b/drivers/s390/char/sclp.c @@ -506,6 +506,8 @@ sclp_state_change_cb(struct evbuf_header *evbuf) if (scbuf->validity_sclp_send_mask) sclp_send_mask = scbuf->sclp_send_mask; spin_unlock_irqrestore(&sclp_lock, flags); + if (scbuf->validity_sclp_active_facility_mask) + sclp_facilities = scbuf->sclp_active_facility_mask; sclp_dispatch_state_change(); } diff --git a/drivers/s390/char/sclp_cpi_sys.c b/drivers/s390/char/sclp_cpi_sys.c index 9f37456222e9..005f330ed926 100644 --- a/drivers/s390/char/sclp_cpi_sys.c +++ b/drivers/s390/char/sclp_cpi_sys.c @@ -27,6 +27,8 @@ #define CPI_LENGTH_NAME 8 #define CPI_LENGTH_LEVEL 16 +static DEFINE_MUTEX(sclp_cpi_mutex); + struct cpi_evbuf { struct evbuf_header header; u8 id_format; @@ -223,7 +225,12 @@ static void set_string(char *attr, const char *value) static ssize_t system_name_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return snprintf(page, PAGE_SIZE, "%s\n", system_name); + int rc; + + mutex_lock(&sclp_cpi_mutex); + rc = snprintf(page, PAGE_SIZE, "%s\n", system_name); + mutex_unlock(&sclp_cpi_mutex); + return rc; } static ssize_t system_name_store(struct kobject *kobj, @@ -237,7 +244,9 @@ static ssize_t system_name_store(struct kobject *kobj, if (rc) return rc; + mutex_lock(&sclp_cpi_mutex); set_string(system_name, buf); + mutex_unlock(&sclp_cpi_mutex); return len; } @@ -248,7 +257,12 @@ static struct kobj_attribute system_name_attr = static ssize_t sysplex_name_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return snprintf(page, PAGE_SIZE, "%s\n", sysplex_name); + int rc; + + mutex_lock(&sclp_cpi_mutex); + rc = snprintf(page, PAGE_SIZE, "%s\n", sysplex_name); + mutex_unlock(&sclp_cpi_mutex); + return rc; } static ssize_t sysplex_name_store(struct kobject *kobj, @@ -262,7 +276,9 @@ static ssize_t sysplex_name_store(struct kobject *kobj, if (rc) return rc; + mutex_lock(&sclp_cpi_mutex); set_string(sysplex_name, buf); + mutex_unlock(&sclp_cpi_mutex); return len; } @@ -273,7 +289,12 @@ static struct kobj_attribute sysplex_name_attr = static ssize_t system_type_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - return snprintf(page, PAGE_SIZE, "%s\n", system_type); + int rc; + + mutex_lock(&sclp_cpi_mutex); + rc = snprintf(page, PAGE_SIZE, "%s\n", system_type); + mutex_unlock(&sclp_cpi_mutex); + return rc; } static ssize_t system_type_store(struct kobject *kobj, @@ -287,7 +308,9 @@ static ssize_t system_type_store(struct kobject *kobj, if (rc) return rc; + mutex_lock(&sclp_cpi_mutex); set_string(system_type, buf); + mutex_unlock(&sclp_cpi_mutex); return len; } @@ -298,8 +321,11 @@ static struct kobj_attribute system_type_attr = static ssize_t system_level_show(struct kobject *kobj, struct kobj_attribute *attr, char *page) { - unsigned long long level = system_level; + unsigned long long level; + mutex_lock(&sclp_cpi_mutex); + level = system_level; + mutex_unlock(&sclp_cpi_mutex); return snprintf(page, PAGE_SIZE, "%#018llx\n", level); } @@ -320,8 +346,9 @@ static ssize_t system_level_store(struct kobject *kobj, if (*endp) return -EINVAL; + mutex_lock(&sclp_cpi_mutex); system_level = level; - + mutex_unlock(&sclp_cpi_mutex); return len; } @@ -334,7 +361,9 @@ static ssize_t set_store(struct kobject *kobj, { int rc; + mutex_lock(&sclp_cpi_mutex); rc = cpi_req(); + mutex_unlock(&sclp_cpi_mutex); if (rc) return rc; @@ -373,12 +402,16 @@ int sclp_cpi_set_data(const char *system, const char *sysplex, const char *type, if (rc) return rc; + mutex_lock(&sclp_cpi_mutex); set_string(system_name, system); set_string(sysplex_name, sysplex); set_string(system_type, type); system_level = level; - return cpi_req(); + rc = cpi_req(); + mutex_unlock(&sclp_cpi_mutex); + + return rc; } EXPORT_SYMBOL(sclp_cpi_set_data); diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index 3e577f655b18..baea4d548523 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -82,8 +82,8 @@ static struct sclp_vt220_request *sclp_vt220_current_request; /* Number of characters in current request buffer */ static int sclp_vt220_buffered_chars; -/* Flag indicating whether this driver has already been initialized */ -static int sclp_vt220_initialized = 0; +/* Counter controlling core driver initialization. */ +static int __initdata sclp_vt220_init_count; /* Flag indicating that sclp_vt220_current_request should really * have been already queued but wasn't because the SCLP was processing @@ -609,10 +609,8 @@ sclp_vt220_flush_buffer(struct tty_struct *tty) sclp_vt220_emit_current(); } -/* - * Initialize all relevant components and register driver with system. - */ -static void __init __sclp_vt220_cleanup(void) +/* Release allocated pages. */ +static void __init __sclp_vt220_free_pages(void) { struct list_head *page, *p; @@ -623,21 +621,30 @@ static void __init __sclp_vt220_cleanup(void) else free_bootmem((unsigned long) page, PAGE_SIZE); } - if (!list_empty(&sclp_vt220_register.list)) - sclp_unregister(&sclp_vt220_register); - sclp_vt220_initialized = 0; } -static int __init __sclp_vt220_init(void) +/* Release memory and unregister from sclp core. Controlled by init counting - + * only the last invoker will actually perform these actions. */ +static void __init __sclp_vt220_cleanup(void) +{ + sclp_vt220_init_count--; + if (sclp_vt220_init_count != 0) + return; + sclp_unregister(&sclp_vt220_register); + __sclp_vt220_free_pages(); +} + +/* Allocate buffer pages and register with sclp core. Controlled by init + * counting - only the first invoker will actually perform these actions. */ +static int __init __sclp_vt220_init(int num_pages) { void *page; int i; - int num_pages; int rc; - if (sclp_vt220_initialized) + sclp_vt220_init_count++; + if (sclp_vt220_init_count != 1) return 0; - sclp_vt220_initialized = 1; spin_lock_init(&sclp_vt220_lock); INIT_LIST_HEAD(&sclp_vt220_empty); INIT_LIST_HEAD(&sclp_vt220_outqueue); @@ -649,24 +656,22 @@ static int __init __sclp_vt220_init(void) sclp_vt220_flush_later = 0; /* Allocate pages for output buffering */ - num_pages = slab_is_available() ? MAX_KMEM_PAGES : MAX_CONSOLE_PAGES; for (i = 0; i < num_pages; i++) { if (slab_is_available()) page = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA); else page = alloc_bootmem_low_pages(PAGE_SIZE); if (!page) { - __sclp_vt220_cleanup(); - return -ENOMEM; + rc = -ENOMEM; + goto out; } list_add_tail((struct list_head *) page, &sclp_vt220_empty); } rc = sclp_register(&sclp_vt220_register); +out: if (rc) { - printk(KERN_ERR SCLP_VT220_PRINT_HEADER - "could not register vt220 - " - "sclp_register returned %d\n", rc); - __sclp_vt220_cleanup(); + __sclp_vt220_free_pages(); + sclp_vt220_init_count--; } return rc; } @@ -689,15 +694,13 @@ static int __init sclp_vt220_tty_init(void) { struct tty_driver *driver; int rc; - int cleanup; /* Note: we're not testing for CONSOLE_IS_SCLP here to preserve * symmetry between VM and LPAR systems regarding ttyS1. */ driver = alloc_tty_driver(1); if (!driver) return -ENOMEM; - cleanup = !sclp_vt220_initialized; - rc = __sclp_vt220_init(); + rc = __sclp_vt220_init(MAX_KMEM_PAGES); if (rc) goto out_driver; @@ -723,8 +726,7 @@ static int __init sclp_vt220_tty_init(void) return 0; out_init: - if (cleanup) - __sclp_vt220_cleanup(); + __sclp_vt220_cleanup(); out_driver: put_tty_driver(driver); return rc; @@ -773,10 +775,9 @@ sclp_vt220_con_init(void) { int rc; - INIT_LIST_HEAD(&sclp_vt220_register.list); if (!CONSOLE_IS_SCLP) return 0; - rc = __sclp_vt220_init(); + rc = __sclp_vt220_init(MAX_CONSOLE_PAGES); if (rc) return rc; /* Attach linux console */ diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c index 874adf365e46..22ca34361ed7 100644 --- a/drivers/s390/char/tape_34xx.c +++ b/drivers/s390/char/tape_34xx.c @@ -196,7 +196,7 @@ tape_34xx_erp_retry(struct tape_request *request) static int tape_34xx_unsolicited_irq(struct tape_device *device, struct irb *irb) { - if (irb->scsw.dstat == 0x85 /* READY */) { + if (irb->scsw.cmd.dstat == 0x85) { /* READY */ /* A medium was inserted in the drive. */ DBF_EVENT(6, "xuud med\n"); tape_34xx_delete_sbid_from(device, 0); @@ -844,22 +844,22 @@ tape_34xx_irq(struct tape_device *device, struct tape_request *request, if (request == NULL) return tape_34xx_unsolicited_irq(device, irb); - if ((irb->scsw.dstat & DEV_STAT_UNIT_EXCEP) && - (irb->scsw.dstat & DEV_STAT_DEV_END) && + if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_EXCEP) && + (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) && (request->op == TO_WRI)) { /* Write at end of volume */ PRINT_INFO("End of volume\n"); /* XXX */ return tape_34xx_erp_failed(request, -ENOSPC); } - if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) return tape_34xx_unit_check(device, request, irb); - if (irb->scsw.dstat & DEV_STAT_DEV_END) { + if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) { /* * A unit exception occurs on skipping over a tapemark block. */ - if (irb->scsw.dstat & DEV_STAT_UNIT_EXCEP) { + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_EXCEP) { if (request->op == TO_BSB || request->op == TO_FSB) request->rescnt++; else diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index 42ce7915fc5d..c92debfec826 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -837,13 +837,13 @@ tape_3590_erp_retry(struct tape_device *device, struct tape_request *request, static int tape_3590_unsolicited_irq(struct tape_device *device, struct irb *irb) { - if (irb->scsw.dstat == DEV_STAT_CHN_END) + if (irb->scsw.cmd.dstat == DEV_STAT_CHN_END) /* Probably result of halt ssch */ return TAPE_IO_PENDING; - else if (irb->scsw.dstat == 0x85) + else if (irb->scsw.cmd.dstat == 0x85) /* Device Ready */ DBF_EVENT(3, "unsol.irq! tape ready: %08x\n", device->cdev_id); - else if (irb->scsw.dstat & DEV_STAT_ATTENTION) { + else if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) { tape_3590_schedule_work(device, TO_READ_ATTMSG); } else { DBF_EVENT(3, "unsol.irq! dev end: %08x\n", device->cdev_id); @@ -910,7 +910,7 @@ tape_3590_erp_swap(struct tape_device *device, struct tape_request *request, * should proceed with the new tape... this * should probably be done in user space! */ - PRINT_WARN("(%s): Swap Tape Device!\n", device->cdev->dev.bus_id); + PRINT_WARN("(%s): Swap Tape Device!\n", dev_name(&device->cdev->dev)); return tape_3590_erp_basic(device, request, irb, -EIO); } @@ -1003,40 +1003,40 @@ tape_3590_print_mim_msg_f0(struct tape_device *device, struct irb *irb) /* Exception Message */ switch (sense->fmt.f70.emc) { case 0x02: - PRINT_WARN("(%s): Data degraded\n", device->cdev->dev.bus_id); + PRINT_WARN("(%s): Data degraded\n", dev_name(&device->cdev->dev)); break; case 0x03: PRINT_WARN("(%s): Data degraded in partion %i\n", - device->cdev->dev.bus_id, sense->fmt.f70.mp); + dev_name(&device->cdev->dev), sense->fmt.f70.mp); break; case 0x04: - PRINT_WARN("(%s): Medium degraded\n", device->cdev->dev.bus_id); + PRINT_WARN("(%s): Medium degraded\n", dev_name(&device->cdev->dev)); break; case 0x05: PRINT_WARN("(%s): Medium degraded in partition %i\n", - device->cdev->dev.bus_id, sense->fmt.f70.mp); + dev_name(&device->cdev->dev), sense->fmt.f70.mp); break; case 0x06: - PRINT_WARN("(%s): Block 0 Error\n", device->cdev->dev.bus_id); + PRINT_WARN("(%s): Block 0 Error\n", dev_name(&device->cdev->dev)); break; case 0x07: PRINT_WARN("(%s): Medium Exception 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f70.md); + dev_name(&device->cdev->dev), sense->fmt.f70.md); break; default: PRINT_WARN("(%s): MIM ExMsg: 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f70.emc); + dev_name(&device->cdev->dev), sense->fmt.f70.emc); break; } /* Service Message */ switch (sense->fmt.f70.smc) { case 0x02: PRINT_WARN("(%s): Reference Media maintenance procedure %i\n", - device->cdev->dev.bus_id, sense->fmt.f70.md); + dev_name(&device->cdev->dev), sense->fmt.f70.md); break; default: PRINT_WARN("(%s): MIM ServiceMsg: 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f70.smc); + dev_name(&device->cdev->dev), sense->fmt.f70.smc); break; } } @@ -1054,101 +1054,101 @@ tape_3590_print_io_sim_msg_f1(struct tape_device *device, struct irb *irb) switch (sense->fmt.f71.emc) { case 0x01: PRINT_WARN("(%s): Effect of failure is unknown\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x02: PRINT_WARN("(%s): CU Exception - no performance impact\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x03: PRINT_WARN("(%s): CU Exception on channel interface 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.md[0]); + dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); break; case 0x04: PRINT_WARN("(%s): CU Exception on device path 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.md[0]); + dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); break; case 0x05: PRINT_WARN("(%s): CU Exception on library path 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.md[0]); + dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); break; case 0x06: PRINT_WARN("(%s): CU Exception on node 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.md[0]); + dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); break; case 0x07: PRINT_WARN("(%s): CU Exception on partition 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.md[0]); + dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); break; default: PRINT_WARN("(%s): SIM ExMsg: 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.emc); + dev_name(&device->cdev->dev), sense->fmt.f71.emc); } /* Service Message */ switch (sense->fmt.f71.smc) { case 0x01: PRINT_WARN("(%s): Repair impact is unknown\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x02: PRINT_WARN("(%s): Repair will not impact cu performance\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x03: if (sense->fmt.f71.mdf == 0) PRINT_WARN("(%s): Repair will disable node " "0x%x on CU\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1]); else PRINT_WARN("(%s): Repair will disable nodes " "(0x%x-0x%x) on CU\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x04: if (sense->fmt.f71.mdf == 0) PRINT_WARN("(%s): Repair will disable cannel path " "0x%x on CU\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1]); else PRINT_WARN("(%s): Repair will disable cannel paths " "(0x%x-0x%x) on CU\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x05: if (sense->fmt.f71.mdf == 0) PRINT_WARN("(%s): Repair will disable device path " "0x%x on CU\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1]); else PRINT_WARN("(%s): Repair will disable device paths " "(0x%x-0x%x) on CU\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x06: if (sense->fmt.f71.mdf == 0) PRINT_WARN("(%s): Repair will disable library path " "0x%x on CU\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1]); else PRINT_WARN("(%s): Repair will disable library paths " "(0x%x-0x%x) on CU\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x07: PRINT_WARN("(%s): Repair will disable access to CU\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; default: PRINT_WARN("(%s): SIM ServiceMsg: 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.smc); + dev_name(&device->cdev->dev), sense->fmt.f71.smc); } } @@ -1165,104 +1165,104 @@ tape_3590_print_dev_sim_msg_f2(struct tape_device *device, struct irb *irb) switch (sense->fmt.f71.emc) { case 0x01: PRINT_WARN("(%s): Effect of failure is unknown\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x02: PRINT_WARN("(%s): DV Exception - no performance impact\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x03: PRINT_WARN("(%s): DV Exception on channel interface 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.md[0]); + dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); break; case 0x04: PRINT_WARN("(%s): DV Exception on loader 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.md[0]); + dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); break; case 0x05: PRINT_WARN("(%s): DV Exception on message display 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.md[0]); + dev_name(&device->cdev->dev), sense->fmt.f71.md[0]); break; case 0x06: PRINT_WARN("(%s): DV Exception in tape path\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x07: PRINT_WARN("(%s): DV Exception in drive\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; default: PRINT_WARN("(%s): DSIM ExMsg: 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.emc); + dev_name(&device->cdev->dev), sense->fmt.f71.emc); } /* Service Message */ switch (sense->fmt.f71.smc) { case 0x01: PRINT_WARN("(%s): Repair impact is unknown\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x02: PRINT_WARN("(%s): Repair will not impact device performance\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x03: if (sense->fmt.f71.mdf == 0) PRINT_WARN("(%s): Repair will disable channel path " "0x%x on DV\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1]); else PRINT_WARN("(%s): Repair will disable channel path " "(0x%x-0x%x) on DV\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x04: if (sense->fmt.f71.mdf == 0) PRINT_WARN("(%s): Repair will disable interface 0x%x " "on DV\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1]); else PRINT_WARN("(%s): Repair will disable interfaces " "(0x%x-0x%x) on DV\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x05: if (sense->fmt.f71.mdf == 0) PRINT_WARN("(%s): Repair will disable loader 0x%x " "on DV\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1]); else PRINT_WARN("(%s): Repair will disable loader " "(0x%x-0x%x) on DV\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x07: PRINT_WARN("(%s): Repair will disable access to DV\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case 0x08: if (sense->fmt.f71.mdf == 0) PRINT_WARN("(%s): Repair will disable message " "display 0x%x on DV\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1]); else PRINT_WARN("(%s): Repair will disable message " "displays (0x%x-0x%x) on DV\n", - device->cdev->dev.bus_id, + dev_name(&device->cdev->dev), sense->fmt.f71.md[1], sense->fmt.f71.md[2]); break; case 0x09: - PRINT_WARN("(%s): Clean DV\n", device->cdev->dev.bus_id); + PRINT_WARN("(%s): Clean DV\n", dev_name(&device->cdev->dev)); break; default: PRINT_WARN("(%s): DSIM ServiceMsg: 0x%02x\n", - device->cdev->dev.bus_id, sense->fmt.f71.smc); + dev_name(&device->cdev->dev), sense->fmt.f71.smc); } } @@ -1279,18 +1279,18 @@ tape_3590_print_era_msg(struct tape_device *device, struct irb *irb) return; if ((sense->mc > 0) && (sense->mc < TAPE_3590_MAX_MSG)) { if (tape_3590_msg[sense->mc] != NULL) - PRINT_WARN("(%s): %s\n", device->cdev->dev.bus_id, + PRINT_WARN("(%s): %s\n", dev_name(&device->cdev->dev), tape_3590_msg[sense->mc]); else { PRINT_WARN("(%s): Message Code 0x%x\n", - device->cdev->dev.bus_id, sense->mc); + dev_name(&device->cdev->dev), sense->mc); } return; } if (sense->mc == 0xf0) { /* Standard Media Information Message */ PRINT_WARN("(%s): MIM SEV=%i, MC=%02x, ES=%x/%x, " - "RC=%02x-%04x-%02x\n", device->cdev->dev.bus_id, + "RC=%02x-%04x-%02x\n", dev_name(&device->cdev->dev), sense->fmt.f70.sev, sense->mc, sense->fmt.f70.emc, sense->fmt.f70.smc, sense->fmt.f70.refcode, sense->fmt.f70.mid, @@ -1302,7 +1302,7 @@ tape_3590_print_era_msg(struct tape_device *device, struct irb *irb) /* Standard I/O Subsystem Service Information Message */ PRINT_WARN("(%s): IOSIM SEV=%i, DEVTYPE=3590/%02x, " "MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n", - device->cdev->dev.bus_id, sense->fmt.f71.sev, + dev_name(&device->cdev->dev), sense->fmt.f71.sev, device->cdev->id.dev_model, sense->mc, sense->fmt.f71.emc, sense->fmt.f71.smc, sense->fmt.f71.refcode1, @@ -1314,7 +1314,7 @@ tape_3590_print_era_msg(struct tape_device *device, struct irb *irb) /* Standard Device Service Information Message */ PRINT_WARN("(%s): DEVSIM SEV=%i, DEVTYPE=3590/%02x, " "MC=%02x, ES=%x/%x, REF=0x%04x-0x%04x-0x%04x\n", - device->cdev->dev.bus_id, sense->fmt.f71.sev, + dev_name(&device->cdev->dev), sense->fmt.f71.sev, device->cdev->id.dev_model, sense->mc, sense->fmt.f71.emc, sense->fmt.f71.smc, sense->fmt.f71.refcode1, @@ -1327,7 +1327,7 @@ tape_3590_print_era_msg(struct tape_device *device, struct irb *irb) return; } PRINT_WARN("(%s): Device Message(%x)\n", - device->cdev->dev.bus_id, sense->mc); + dev_name(&device->cdev->dev), sense->mc); } static int tape_3590_crypt_error(struct tape_device *device, @@ -1336,10 +1336,11 @@ static int tape_3590_crypt_error(struct tape_device *device, u8 cu_rc, ekm_rc1; u16 ekm_rc2; u32 drv_rc; - char *bus_id, *sense; + const char *bus_id; + char *sense; sense = ((struct tape_3590_sense *) irb->ecw)->fmt.data; - bus_id = device->cdev->dev.bus_id; + bus_id = dev_name(&device->cdev->dev); cu_rc = sense[0]; drv_rc = *((u32*) &sense[5]) & 0xffffff; ekm_rc1 = sense[9]; @@ -1440,7 +1441,7 @@ tape_3590_unit_check(struct tape_device *device, struct tape_request *request, * "device intervention" is not very meaningfull */ PRINT_WARN("(%s): Tape operation when medium not loaded\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); tape_med_state_set(device, MS_UNLOADED); tape_3590_schedule_work(device, TO_CRYPT_OFF); return tape_3590_erp_basic(device, request, irb, -ENOMEDIUM); @@ -1487,18 +1488,18 @@ tape_3590_unit_check(struct tape_device *device, struct tape_request *request, case 0x6020: PRINT_WARN("(%s): Cartridge of wrong type ?\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); return tape_3590_erp_basic(device, request, irb, -EMEDIUMTYPE); case 0x8011: PRINT_WARN("(%s): Another host has reserved the tape device\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); return tape_3590_erp_basic(device, request, irb, -EPERM); case 0x8013: PRINT_WARN("(%s): Another host has privileged access to the " - "tape device\n", device->cdev->dev.bus_id); + "tape device\n", dev_name(&device->cdev->dev)); PRINT_WARN("(%s): To solve the problem unload the current " - "cartridge!\n", device->cdev->dev.bus_id); + "cartridge!\n", dev_name(&device->cdev->dev)); return tape_3590_erp_basic(device, request, irb, -EPERM); default: return tape_3590_erp_basic(device, request, irb, -EIO); @@ -1515,18 +1516,19 @@ tape_3590_irq(struct tape_device *device, struct tape_request *request, if (request == NULL) return tape_3590_unsolicited_irq(device, irb); - if ((irb->scsw.dstat & DEV_STAT_UNIT_EXCEP) && - (irb->scsw.dstat & DEV_STAT_DEV_END) && (request->op == TO_WRI)) { + if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_EXCEP) && + (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) && + (request->op == TO_WRI)) { /* Write at end of volume */ DBF_EVENT(2, "End of volume\n"); return tape_3590_erp_failed(device, request, irb, -ENOSPC); } - if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) return tape_3590_unit_check(device, request, irb); - if (irb->scsw.dstat & DEV_STAT_DEV_END) { - if (irb->scsw.dstat == DEV_STAT_UNIT_EXCEP) { + if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) { + if (irb->scsw.cmd.dstat == DEV_STAT_UNIT_EXCEP) { if (request->op == TO_FSB || request->op == TO_BSB) request->rescnt++; else @@ -1536,12 +1538,12 @@ tape_3590_irq(struct tape_device *device, struct tape_request *request, return tape_3590_done(device, request); } - if (irb->scsw.dstat & DEV_STAT_CHN_END) { + if (irb->scsw.cmd.dstat & DEV_STAT_CHN_END) { DBF_EVENT(2, "cannel end\n"); return TAPE_IO_PENDING; } - if (irb->scsw.dstat & DEV_STAT_ATTENTION) { + if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) { DBF_EVENT(2, "Unit Attention when busy..\n"); return TAPE_IO_PENDING; } diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c index 95da72bc17e8..a25b8bf54f41 100644 --- a/drivers/s390/char/tape_block.c +++ b/drivers/s390/char/tape_block.c @@ -278,7 +278,7 @@ tapeblock_cleanup_device(struct tape_device *device) if (!device->blk_data.disk) { PRINT_ERR("(%s): No gendisk to clean up!\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); goto cleanup_queue; } diff --git a/drivers/s390/char/tape_class.c b/drivers/s390/char/tape_class.c index 6dfdb7c17981..12c2a5aaf31b 100644 --- a/drivers/s390/char/tape_class.c +++ b/drivers/s390/char/tape_class.c @@ -69,10 +69,9 @@ struct tape_class_device *register_tape_dev( if (rc) goto fail_with_cdev; - tcd->class_device = device_create(tape_class, device, - tcd->char_device->dev, - "%s", tcd->device_name - ); + tcd->class_device = device_create_drvdata(tape_class, device, + tcd->char_device->dev, + NULL, "%s", tcd->device_name); rc = IS_ERR(tcd->class_device) ? PTR_ERR(tcd->class_device) : 0; if (rc) goto fail_with_cdev; diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c index c20e3c548343..9c1e5fcc505c 100644 --- a/drivers/s390/char/tape_core.c +++ b/drivers/s390/char/tape_core.c @@ -215,12 +215,12 @@ tape_med_state_set(struct tape_device *device, enum tape_medium_state newstate) case MS_UNLOADED: device->tape_generic_status |= GMT_DR_OPEN(~0); PRINT_INFO("(%s): Tape is unloaded\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; case MS_LOADED: device->tape_generic_status &= ~GMT_DR_OPEN(~0); PRINT_INFO("(%s): Tape has been mounted\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); break; default: // print nothing @@ -415,7 +415,7 @@ tape_generic_offline(struct tape_device *device) device->cdev_id); PRINT_WARN("(%s): Set offline failed " "- drive in use.\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); spin_unlock_irq(get_ccwdev_lock(device->cdev)); return -EBUSY; } @@ -538,7 +538,7 @@ tape_generic_probe(struct ccw_device *cdev) ret = sysfs_create_group(&cdev->dev.kobj, &tape_attr_group); if (ret) { tape_put_device(device); - PRINT_ERR("probe failed for tape device %s\n", cdev->dev.bus_id); + PRINT_ERR("probe failed for tape device %s\n", dev_name(&cdev->dev)); return ret; } cdev->dev.driver_data = device; @@ -546,7 +546,7 @@ tape_generic_probe(struct ccw_device *cdev) device->cdev = cdev; ccw_device_get_id(cdev, &dev_id); device->cdev_id = devid_to_int(&dev_id); - PRINT_INFO("tape device %s found\n", cdev->dev.bus_id); + PRINT_INFO("tape device %s found\n", dev_name(&cdev->dev)); return ret; } @@ -616,7 +616,7 @@ tape_generic_remove(struct ccw_device *cdev) device->cdev_id); PRINT_WARN("(%s): Drive in use vanished - " "expect trouble!\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); PRINT_WARN("State was %i\n", device->tape_state); tape_state_set(device, TS_NOT_OPER); __tape_discard_requests(device); @@ -839,8 +839,8 @@ tape_dump_sense(struct tape_device* device, struct tape_request *request, PRINT_INFO("-------------------------------------------------\n"); PRINT_INFO("DSTAT : %02x CSTAT: %02x CPA: %04x\n", - irb->scsw.dstat, irb->scsw.cstat, irb->scsw.cpa); - PRINT_INFO("DEVICE: %s\n", device->cdev->dev.bus_id); + irb->scsw.cmd.dstat, irb->scsw.cmd.cstat, irb->scsw.cmd.cpa); + PRINT_INFO("DEVICE: %s\n", dev_name(&device->cdev->dev)); if (request != NULL) PRINT_INFO("OP : %s\n", tape_op_verbose[request->op]); @@ -867,7 +867,7 @@ tape_dump_sense_dbf(struct tape_device *device, struct tape_request *request, else op = "---"; DBF_EVENT(3, "DSTAT : %02x CSTAT: %02x\n", - irb->scsw.dstat,irb->scsw.cstat); + irb->scsw.cmd.dstat, irb->scsw.cmd.cstat); DBF_EVENT(3, "DEVICE: %08x OP\t: %s\n", device->cdev_id, op); sptr = (unsigned int *) irb->ecw; DBF_EVENT(3, "%08x %08x\n", sptr[0], sptr[1]); @@ -1051,7 +1051,7 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) device = (struct tape_device *) cdev->dev.driver_data; if (device == NULL) { PRINT_ERR("could not get device structure for %s " - "in interrupt\n", cdev->dev.bus_id); + "in interrupt\n", dev_name(&cdev->dev)); return; } request = (struct tape_request *) intparm; @@ -1064,13 +1064,13 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) switch (PTR_ERR(irb)) { case -ETIMEDOUT: PRINT_WARN("(%s): Request timed out\n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); case -EIO: __tape_end_request(device, request, -EIO); break; default: PRINT_ERR("(%s): Unexpected i/o error %li\n", - cdev->dev.bus_id, + dev_name(&cdev->dev), PTR_ERR(irb)); } return; @@ -1083,10 +1083,11 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) * error might still apply. So we just schedule the request to be * started later. */ - if (irb->scsw.cc != 0 && (irb->scsw.fctl & SCSW_FCTL_START_FUNC) && + if (irb->scsw.cmd.cc != 0 && + (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC) && (request->status == TAPE_REQUEST_IN_IO)) { DBF_EVENT(3,"(%08x): deferred cc=%i, fctl=%i. restarting\n", - device->cdev_id, irb->scsw.cc, irb->scsw.fctl); + device->cdev_id, irb->scsw.cmd.cc, irb->scsw.cmd.fctl); request->status = TAPE_REQUEST_QUEUED; schedule_delayed_work(&device->tape_dnr, HZ); return; @@ -1094,8 +1095,8 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) /* May be an unsolicited irq */ if(request != NULL) - request->rescnt = irb->scsw.count; - else if ((irb->scsw.dstat == 0x85 || irb->scsw.dstat == 0x80) && + request->rescnt = irb->scsw.cmd.count; + else if ((irb->scsw.cmd.dstat == 0x85 || irb->scsw.cmd.dstat == 0x80) && !list_empty(&device->req_queue)) { /* Not Ready to Ready after long busy ? */ struct tape_request *req; @@ -1111,7 +1112,7 @@ __tape_do_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb) return; } } - if (irb->scsw.dstat != 0x0c) { + if (irb->scsw.cmd.dstat != 0x0c) { /* Set the 'ONLINE' flag depending on sense byte 1 */ if(*(((__u8 *) irb->ecw) + 1) & SENSE_DRIVE_ONLINE) device->tape_generic_status |= GMT_ONLINE(~0); diff --git a/drivers/s390/char/tape_proc.c b/drivers/s390/char/tape_proc.c index e7c888c14e71..8a376af926a7 100644 --- a/drivers/s390/char/tape_proc.c +++ b/drivers/s390/char/tape_proc.c @@ -52,7 +52,7 @@ static int tape_proc_show(struct seq_file *m, void *v) return 0; spin_lock_irq(get_ccwdev_lock(device->cdev)); seq_printf(m, "%d\t", (int) n); - seq_printf(m, "%-10.10s ", device->cdev->dev.bus_id); + seq_printf(m, "%-10.10s ", dev_name(&device->cdev->dev)); seq_printf(m, "%04X/", device->cdev->id.cu_type); seq_printf(m, "%02X\t", device->cdev->id.cu_model); seq_printf(m, "%04X/", device->cdev->id.dev_type); diff --git a/drivers/s390/char/tape_std.c b/drivers/s390/char/tape_std.c index 2a1af4e60be0..1abeeaa25d6f 100644 --- a/drivers/s390/char/tape_std.c +++ b/drivers/s390/char/tape_std.c @@ -47,7 +47,7 @@ tape_std_assign_timeout(unsigned long data) rc = tape_cancel_io(device, request); if(rc) PRINT_ERR("(%s): Assign timeout: Cancel failed with rc = %i\n", - device->cdev->dev.bus_id, rc); + dev_name(&device->cdev->dev), rc); } @@ -83,7 +83,7 @@ tape_std_assign(struct tape_device *device) if (rc != 0) { PRINT_WARN("%s: assign failed - device might be busy\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); DBF_EVENT(3, "%08x: assign failed - device might be busy\n", device->cdev_id); } else { @@ -106,7 +106,7 @@ tape_std_unassign (struct tape_device *device) DBF_EVENT(3, "(%08x): Can't unassign device\n", device->cdev_id); PRINT_WARN("(%s): Can't unassign device - device gone\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); return -EIO; } @@ -120,7 +120,7 @@ tape_std_unassign (struct tape_device *device) if ((rc = tape_do_io(device, request)) != 0) { DBF_EVENT(3, "%08x: Unassign failed\n", device->cdev_id); - PRINT_WARN("%s: Unassign failed\n", device->cdev->dev.bus_id); + PRINT_WARN("%s: Unassign failed\n", dev_name(&device->cdev->dev)); } else { DBF_EVENT(3, "%08x: Tape unassigned\n", device->cdev_id); } @@ -634,10 +634,10 @@ tape_std_mtcompression(struct tape_device *device, int mt_count) DBF_EXCEPTION(6, "xcom parm\n"); if (*device->modeset_byte & 0x08) PRINT_INFO("(%s) Compression is currently on\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); else PRINT_INFO("(%s) Compression is currently off\n", - device->cdev->dev.bus_id); + dev_name(&device->cdev->dev)); PRINT_INFO("Use 1 to switch compression on, 0 to " "switch it off\n"); return -EINVAL; diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index 5043150019ac..e4ba8bdce32e 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -663,7 +663,7 @@ static int tty3270_irq(struct tty3270 *tp, struct raw3270_request *rq, struct irb *irb) { /* Handle ATTN. Schedule tasklet to read aid. */ - if (irb->scsw.dstat & DEV_STAT_ATTENTION) { + if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) { if (!tp->throttle) tty3270_issue_read(tp, 0); else @@ -671,11 +671,11 @@ tty3270_irq(struct tty3270 *tp, struct raw3270_request *rq, struct irb *irb) } if (rq) { - if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) rq->rc = -EIO; else /* Normal end. Copy residual count. */ - rq->rescnt = irb->scsw.count; + rq->rescnt = irb->scsw.cmd.count; } return RAW3270_IO_DONE; } diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c index 2c2428cc05d8..7ace5859b5d8 100644 --- a/drivers/s390/char/vmlogrdr.c +++ b/drivers/s390/char/vmlogrdr.c @@ -738,8 +738,7 @@ static int vmlogrdr_register_device(struct vmlogrdr_priv_t *priv) dev = kzalloc(sizeof(struct device), GFP_KERNEL); if (dev) { - snprintf(dev->bus_id, BUS_ID_SIZE, "%s", - priv->internal_name); + dev_set_name(dev, priv->internal_name); dev->bus = &iucv_bus; dev->parent = iucv_root; dev->driver = &vmlogrdr_driver; @@ -765,7 +764,7 @@ static int vmlogrdr_register_device(struct vmlogrdr_priv_t *priv) priv->class_device = device_create_drvdata(vmlogrdr_class, dev, MKDEV(vmlogrdr_major, priv->minor_num), - priv, "%s", dev->bus_id); + priv, "%s", dev_name(dev)); if (IS_ERR(priv->class_device)) { ret = PTR_ERR(priv->class_device); priv->class_device=NULL; diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index 83ae9a852f00..22696a2e15dd 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -277,7 +277,8 @@ static void ur_int_handler(struct ccw_device *cdev, unsigned long intparm, struct urdev *urd; TRACE("ur_int_handler: intparm=0x%lx cstat=%02x dstat=%02x res=%u\n", - intparm, irb->scsw.cstat, irb->scsw.dstat, irb->scsw.count); + intparm, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat, + irb->scsw.cmd.count); if (!intparm) { TRACE("ur_int_handler: unsolicited interrupt\n"); @@ -288,7 +289,7 @@ static void ur_int_handler(struct ccw_device *cdev, unsigned long intparm, /* On special conditions irb is an error pointer */ if (IS_ERR(irb)) urd->io_request_rc = PTR_ERR(irb); - else if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) + else if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END)) urd->io_request_rc = 0; else urd->io_request_rc = -EIO; @@ -879,18 +880,19 @@ static int ur_set_online(struct ccw_device *cdev) goto fail_free_cdev; if (urd->cdev->id.cu_type == READER_PUNCH_DEVTYPE) { if (urd->class == DEV_CLASS_UR_I) - sprintf(node_id, "vmrdr-%s", cdev->dev.bus_id); + sprintf(node_id, "vmrdr-%s", dev_name(&cdev->dev)); if (urd->class == DEV_CLASS_UR_O) - sprintf(node_id, "vmpun-%s", cdev->dev.bus_id); + sprintf(node_id, "vmpun-%s", dev_name(&cdev->dev)); } else if (urd->cdev->id.cu_type == PRINTER_DEVTYPE) { - sprintf(node_id, "vmprt-%s", cdev->dev.bus_id); + sprintf(node_id, "vmprt-%s", dev_name(&cdev->dev)); } else { rc = -ENOTSUPP; goto fail_free_cdev; } - urd->device = device_create(vmur_class, NULL, urd->char_device->dev, - "%s", node_id); + urd->device = device_create_drvdata(vmur_class, NULL, + urd->char_device->dev, NULL, + "%s", node_id); if (IS_ERR(urd->device)) { rc = PTR_ERR(urd->device); TRACE("ur_set_online: device_create rc=%d\n", rc); diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile index cfaf77b320f5..91e9e3f3073a 100644 --- a/drivers/s390/cio/Makefile +++ b/drivers/s390/cio/Makefile @@ -2,9 +2,11 @@ # Makefile for the S/390 common i/o drivers # -obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o +obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o scsw.o \ + fcx.o itcw.o ccw_device-objs += device.o device_fsm.o device_ops.o ccw_device-objs += device_id.o device_pgid.o device_status.o obj-y += ccw_device.o cmf.o +obj-$(CONFIG_CHSC_SCH) += chsc_sch.o obj-$(CONFIG_CCWGROUP) += ccwgroup.o obj-$(CONFIG_QDIO) += qdio.o diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c index b7a07a866291..fe6cea15bbaf 100644 --- a/drivers/s390/cio/airq.c +++ b/drivers/s390/cio/airq.c @@ -15,6 +15,7 @@ #include <linux/rcupdate.h> #include <asm/airq.h> +#include <asm/isc.h> #include "cio.h" #include "cio_debug.h" @@ -33,15 +34,15 @@ struct airq_t { void *drv_data; }; -static union indicator_t indicators; -static struct airq_t *airqs[NR_AIRQS]; +static union indicator_t indicators[MAX_ISC]; +static struct airq_t *airqs[MAX_ISC][NR_AIRQS]; -static int register_airq(struct airq_t *airq) +static int register_airq(struct airq_t *airq, u8 isc) { int i; for (i = 0; i < NR_AIRQS; i++) - if (!cmpxchg(&airqs[i], NULL, airq)) + if (!cmpxchg(&airqs[isc][i], NULL, airq)) return i; return -ENOMEM; } @@ -50,18 +51,21 @@ static int register_airq(struct airq_t *airq) * s390_register_adapter_interrupt() - register adapter interrupt handler * @handler: adapter handler to be registered * @drv_data: driver data passed with each call to the handler + * @isc: isc for which the handler should be called * * Returns: * Pointer to the indicator to be used on success * ERR_PTR() if registration failed */ void *s390_register_adapter_interrupt(adapter_int_handler_t handler, - void *drv_data) + void *drv_data, u8 isc) { struct airq_t *airq; char dbf_txt[16]; int ret; + if (isc > MAX_ISC) + return ERR_PTR(-EINVAL); airq = kmalloc(sizeof(struct airq_t), GFP_KERNEL); if (!airq) { ret = -ENOMEM; @@ -69,34 +73,35 @@ void *s390_register_adapter_interrupt(adapter_int_handler_t handler, } airq->handler = handler; airq->drv_data = drv_data; - ret = register_airq(airq); - if (ret < 0) - kfree(airq); + + ret = register_airq(airq, isc); out: snprintf(dbf_txt, sizeof(dbf_txt), "rairq:%d", ret); CIO_TRACE_EVENT(4, dbf_txt); - if (ret < 0) + if (ret < 0) { + kfree(airq); return ERR_PTR(ret); - else - return &indicators.byte[ret]; + } else + return &indicators[isc].byte[ret]; } EXPORT_SYMBOL(s390_register_adapter_interrupt); /** * s390_unregister_adapter_interrupt - unregister adapter interrupt handler * @ind: indicator for which the handler is to be unregistered + * @isc: interruption subclass */ -void s390_unregister_adapter_interrupt(void *ind) +void s390_unregister_adapter_interrupt(void *ind, u8 isc) { struct airq_t *airq; char dbf_txt[16]; int i; - i = (int) ((addr_t) ind) - ((addr_t) &indicators.byte[0]); + i = (int) ((addr_t) ind) - ((addr_t) &indicators[isc].byte[0]); snprintf(dbf_txt, sizeof(dbf_txt), "urairq:%d", i); CIO_TRACE_EVENT(4, dbf_txt); - indicators.byte[i] = 0; - airq = xchg(&airqs[i], NULL); + indicators[isc].byte[i] = 0; + airq = xchg(&airqs[isc][i], NULL); /* * Allow interrupts to complete. This will ensure that the airq handle * is no longer referenced by any interrupt handler. @@ -108,7 +113,7 @@ EXPORT_SYMBOL(s390_unregister_adapter_interrupt); #define INDICATOR_MASK (0xffUL << ((NR_AIRQS_PER_WORD - 1) * 8)) -void do_adapter_IO(void) +void do_adapter_IO(u8 isc) { int w; int i; @@ -120,22 +125,22 @@ void do_adapter_IO(void) * fetch operations. */ for (w = 0; w < NR_AIRQ_WORDS; w++) { - word = indicators.word[w]; + word = indicators[isc].word[w]; i = w * NR_AIRQS_PER_WORD; /* * Check bytes within word for active indicators. */ while (word) { if (word & INDICATOR_MASK) { - airq = airqs[i]; + airq = airqs[isc][i]; if (likely(airq)) - airq->handler(&indicators.byte[i], + airq->handler(&indicators[isc].byte[i], airq->drv_data); else /* * Reset ill-behaved indicator. */ - indicators.byte[i] = 0; + indicators[isc].byte[i] = 0; } word <<= 8; i++; diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 26a930e832bd..859ea264801b 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -264,8 +264,7 @@ int ccwgroup_create_from_string(struct device *root, unsigned int creator_id, gdev->dev.parent = root; gdev->dev.release = ccwgroup_release; - snprintf (gdev->dev.bus_id, BUS_ID_SIZE, "%s", - gdev->cdev[0]->dev.bus_id); + dev_set_name(&gdev->dev, "%s", dev_name(&gdev->cdev[0]->dev)); rc = device_register(&gdev->dev); if (rc) diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c index 297cdceb0ca4..cd61a27f8963 100644 --- a/drivers/s390/cio/chp.c +++ b/drivers/s390/cio/chp.c @@ -18,6 +18,7 @@ #include <asm/chpid.h> #include <asm/sclp.h> +#include "../s390mach.h" #include "cio.h" #include "css.h" #include "ioasm.h" @@ -94,6 +95,7 @@ u8 chp_get_sch_opm(struct subchannel *sch) } return opm; } +EXPORT_SYMBOL_GPL(chp_get_sch_opm); /** * chp_is_registered - check if a channel-path is registered @@ -401,11 +403,10 @@ int chp_new(struct chp_id chpid) chp->state = 1; chp->dev.parent = &channel_subsystems[chpid.cssid]->device; chp->dev.release = chp_release; - snprintf(chp->dev.bus_id, BUS_ID_SIZE, "chp%x.%02x", chpid.cssid, - chpid.id); + dev_set_name(&chp->dev, "chp%x.%02x", chpid.cssid, chpid.id); /* Obtain channel path description and fill it in. */ - ret = chsc_determine_channel_path_description(chpid, &chp->desc); + ret = chsc_determine_base_channel_path_desc(chpid, &chp->desc); if (ret) goto out_free; if ((chp->desc.flags & 0x80) == 0) { @@ -413,8 +414,7 @@ int chp_new(struct chp_id chpid) goto out_free; } /* Get channel-measurement characteristics. */ - if (css_characteristics_avail && css_chsc_characteristics.scmc - && css_chsc_characteristics.secm) { + if (css_chsc_characteristics.scmc && css_chsc_characteristics.secm) { ret = chsc_get_channel_measurement_chars(chp); if (ret) goto out_free; @@ -476,25 +476,73 @@ void *chp_get_chp_desc(struct chp_id chpid) /** * chp_process_crw - process channel-path status change - * @id: channel-path ID number - * @status: non-zero if channel-path has become available, zero otherwise + * @crw0: channel report-word to handler + * @crw1: second channel-report word (always NULL) + * @overflow: crw overflow indication * * Handle channel-report-words indicating that the status of a channel-path * has changed. */ -void chp_process_crw(int id, int status) +static void chp_process_crw(struct crw *crw0, struct crw *crw1, + int overflow) { struct chp_id chpid; + if (overflow) { + css_schedule_eval_all(); + return; + } + CIO_CRW_EVENT(2, "CRW reports slct=%d, oflw=%d, " + "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", + crw0->slct, crw0->oflw, crw0->chn, crw0->rsc, crw0->anc, + crw0->erc, crw0->rsid); + /* + * Check for solicited machine checks. These are + * created by reset channel path and need not be + * handled here. + */ + if (crw0->slct) { + CIO_CRW_EVENT(2, "solicited machine check for " + "channel path %02X\n", crw0->rsid); + return; + } chp_id_init(&chpid); - chpid.id = id; - if (status) { + chpid.id = crw0->rsid; + switch (crw0->erc) { + case CRW_ERC_IPARM: /* Path has come. */ if (!chp_is_registered(chpid)) chp_new(chpid); chsc_chp_online(chpid); - } else + break; + case CRW_ERC_PERRI: /* Path has gone. */ + case CRW_ERC_PERRN: chsc_chp_offline(chpid); + break; + default: + CIO_CRW_EVENT(2, "Don't know how to handle erc=%x\n", + crw0->erc); + } +} + +int chp_ssd_get_mask(struct chsc_ssd_info *ssd, struct chp_link *link) +{ + int i; + int mask; + + for (i = 0; i < 8; i++) { + mask = 0x80 >> i; + if (!(ssd->path_mask & mask)) + continue; + if (!chp_id_is_equal(&ssd->chpid[i], &link->chpid)) + continue; + if ((ssd->fla_valid_mask & mask) && + ((ssd->fla[i] & link->fla_mask) != link->fla)) + continue; + return mask; + } + return 0; } +EXPORT_SYMBOL_GPL(chp_ssd_get_mask); static inline int info_bit_num(struct chp_id id) { @@ -575,6 +623,7 @@ static void cfg_func(struct work_struct *work) { struct chp_id chpid; enum cfg_task_t t; + int rc; mutex_lock(&cfg_lock); t = cfg_none; @@ -589,14 +638,24 @@ static void cfg_func(struct work_struct *work) switch (t) { case cfg_configure: - sclp_chp_configure(chpid); - info_expire(); - chsc_chp_online(chpid); + rc = sclp_chp_configure(chpid); + if (rc) + CIO_MSG_EVENT(2, "chp: sclp_chp_configure(%x.%02x)=" + "%d\n", chpid.cssid, chpid.id, rc); + else { + info_expire(); + chsc_chp_online(chpid); + } break; case cfg_deconfigure: - sclp_chp_deconfigure(chpid); - info_expire(); - chsc_chp_offline(chpid); + rc = sclp_chp_deconfigure(chpid); + if (rc) + CIO_MSG_EVENT(2, "chp: sclp_chp_deconfigure(%x.%02x)=" + "%d\n", chpid.cssid, chpid.id, rc); + else { + info_expire(); + chsc_chp_offline(chpid); + } break; case cfg_none: /* Get updated information after last change. */ @@ -654,10 +713,16 @@ static int cfg_wait_idle(void) static int __init chp_init(void) { struct chp_id chpid; + int ret; + ret = s390_register_crw_handler(CRW_RSC_CPATH, chp_process_crw); + if (ret) + return ret; chp_wq = create_singlethread_workqueue("cio_chp"); - if (!chp_wq) + if (!chp_wq) { + s390_unregister_crw_handler(CRW_RSC_CPATH); return -ENOMEM; + } INIT_WORK(&cfg_work, cfg_func); init_waitqueue_head(&cfg_wait_queue); if (info_update()) diff --git a/drivers/s390/cio/chp.h b/drivers/s390/cio/chp.h index 65286563c592..26c3d2246176 100644 --- a/drivers/s390/cio/chp.h +++ b/drivers/s390/cio/chp.h @@ -12,12 +12,24 @@ #include <linux/device.h> #include <asm/chpid.h> #include "chsc.h" +#include "css.h" #define CHP_STATUS_STANDBY 0 #define CHP_STATUS_CONFIGURED 1 #define CHP_STATUS_RESERVED 2 #define CHP_STATUS_NOT_RECOGNIZED 3 +#define CHP_ONLINE 0 +#define CHP_OFFLINE 1 +#define CHP_VARY_ON 2 +#define CHP_VARY_OFF 3 + +struct chp_link { + struct chp_id chpid; + u32 fla_mask; + u16 fla; +}; + static inline int chp_test_bit(u8 *bitmap, int num) { int byte = num >> 3; @@ -42,12 +54,11 @@ int chp_get_status(struct chp_id chpid); u8 chp_get_sch_opm(struct subchannel *sch); int chp_is_registered(struct chp_id chpid); void *chp_get_chp_desc(struct chp_id chpid); -void chp_process_crw(int id, int available); void chp_remove_cmg_attr(struct channel_path *chp); int chp_add_cmg_attr(struct channel_path *chp); int chp_new(struct chp_id chpid); void chp_cfg_schedule(struct chp_id chpid, int configure); void chp_cfg_cancel_deconfigure(struct chp_id chpid); int chp_info_get_status(struct chp_id chpid); - +int chp_ssd_get_mask(struct chsc_ssd_info *, struct chp_link *); #endif /* S390_CHP_H */ diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 5de86908b0d0..65264a38057d 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -2,8 +2,7 @@ * drivers/s390/cio/chsc.c * S/390 common I/O routines -- channel subsystem call * - * Copyright (C) 1999-2002 IBM Deutschland Entwicklung GmbH, - * IBM Corporation + * Copyright IBM Corp. 1999,2008 * Author(s): Ingo Adlung (adlung@de.ibm.com) * Cornelia Huck (cornelia.huck@de.ibm.com) * Arnd Bergmann (arndb@de.ibm.com) @@ -16,7 +15,9 @@ #include <asm/cio.h> #include <asm/chpid.h> +#include <asm/chsc.h> +#include "../s390mach.h" #include "css.h" #include "cio.h" #include "cio_debug.h" @@ -127,77 +128,12 @@ out_free: return ret; } -static int check_for_io_on_path(struct subchannel *sch, int mask) -{ - int cc; - - cc = stsch(sch->schid, &sch->schib); - if (cc) - return 0; - if (sch->schib.scsw.actl && sch->schib.pmcw.lpum == mask) - return 1; - return 0; -} - -static void terminate_internal_io(struct subchannel *sch) -{ - if (cio_clear(sch)) { - /* Recheck device in case clear failed. */ - sch->lpm = 0; - if (device_trigger_verify(sch) != 0) - css_schedule_eval(sch->schid); - return; - } - /* Request retry of internal operation. */ - device_set_intretry(sch); - /* Call handler. */ - if (sch->driver && sch->driver->termination) - sch->driver->termination(sch); -} - static int s390_subchannel_remove_chpid(struct subchannel *sch, void *data) { - int j; - int mask; - struct chp_id *chpid = data; - struct schib schib; - - for (j = 0; j < 8; j++) { - mask = 0x80 >> j; - if ((sch->schib.pmcw.pim & mask) && - (sch->schib.pmcw.chpid[j] == chpid->id)) - break; - } - if (j >= 8) - return 0; - spin_lock_irq(sch->lock); - - stsch(sch->schid, &schib); - if (!css_sch_is_valid(&schib)) - goto out_unreg; - memcpy(&sch->schib, &schib, sizeof(struct schib)); - /* Check for single path devices. */ - if (sch->schib.pmcw.pim == 0x80) - goto out_unreg; - - if (check_for_io_on_path(sch, mask)) { - if (device_is_online(sch)) - device_kill_io(sch); - else { - terminate_internal_io(sch); - /* Re-start path verification. */ - if (sch->driver && sch->driver->verify) - sch->driver->verify(sch); - } - } else { - /* trigger path verification. */ - if (sch->driver && sch->driver->verify) - sch->driver->verify(sch); - else if (sch->lpm == mask) + if (sch->driver && sch->driver->chp_event) + if (sch->driver->chp_event(sch, data, CHP_OFFLINE) != 0) goto out_unreg; - } - spin_unlock_irq(sch->lock); return 0; @@ -211,15 +147,18 @@ out_unreg: void chsc_chp_offline(struct chp_id chpid) { char dbf_txt[15]; + struct chp_link link; sprintf(dbf_txt, "chpr%x.%02x", chpid.cssid, chpid.id); CIO_TRACE_EVENT(2, dbf_txt); if (chp_get_status(chpid) <= 0) return; + memset(&link, 0, sizeof(struct chp_link)); + link.chpid = chpid; /* Wait until previous actions have settled. */ css_wait_for_slow_path(); - for_each_subchannel_staged(s390_subchannel_remove_chpid, NULL, &chpid); + for_each_subchannel_staged(s390_subchannel_remove_chpid, NULL, &link); } static int s390_process_res_acc_new_sch(struct subchannel_id schid, void *data) @@ -242,67 +181,25 @@ static int s390_process_res_acc_new_sch(struct subchannel_id schid, void *data) return 0; } -struct res_acc_data { - struct chp_id chpid; - u32 fla_mask; - u16 fla; -}; - -static int get_res_chpid_mask(struct chsc_ssd_info *ssd, - struct res_acc_data *data) -{ - int i; - int mask; - - for (i = 0; i < 8; i++) { - mask = 0x80 >> i; - if (!(ssd->path_mask & mask)) - continue; - if (!chp_id_is_equal(&ssd->chpid[i], &data->chpid)) - continue; - if ((ssd->fla_valid_mask & mask) && - ((ssd->fla[i] & data->fla_mask) != data->fla)) - continue; - return mask; - } - return 0; -} - static int __s390_process_res_acc(struct subchannel *sch, void *data) { - int chp_mask, old_lpm; - struct res_acc_data *res_data = data; - spin_lock_irq(sch->lock); - chp_mask = get_res_chpid_mask(&sch->ssd_info, res_data); - if (chp_mask == 0) - goto out; - if (stsch(sch->schid, &sch->schib)) - goto out; - old_lpm = sch->lpm; - sch->lpm = ((sch->schib.pmcw.pim & - sch->schib.pmcw.pam & - sch->schib.pmcw.pom) - | chp_mask) & sch->opm; - if (!old_lpm && sch->lpm) - device_trigger_reprobe(sch); - else if (sch->driver && sch->driver->verify) - sch->driver->verify(sch); -out: + if (sch->driver && sch->driver->chp_event) + sch->driver->chp_event(sch, data, CHP_ONLINE); spin_unlock_irq(sch->lock); return 0; } -static void s390_process_res_acc (struct res_acc_data *res_data) +static void s390_process_res_acc(struct chp_link *link) { char dbf_txt[15]; - sprintf(dbf_txt, "accpr%x.%02x", res_data->chpid.cssid, - res_data->chpid.id); + sprintf(dbf_txt, "accpr%x.%02x", link->chpid.cssid, + link->chpid.id); CIO_TRACE_EVENT( 2, dbf_txt); - if (res_data->fla != 0) { - sprintf(dbf_txt, "fla%x", res_data->fla); + if (link->fla != 0) { + sprintf(dbf_txt, "fla%x", link->fla); CIO_TRACE_EVENT( 2, dbf_txt); } /* Wait until previous actions have settled. */ @@ -315,7 +212,7 @@ static void s390_process_res_acc (struct res_acc_data *res_data) * will we have to do. */ for_each_subchannel_staged(__s390_process_res_acc, - s390_process_res_acc_new_sch, res_data); + s390_process_res_acc_new_sch, link); } static int @@ -388,7 +285,7 @@ static void chsc_process_sei_link_incident(struct chsc_sei_area *sei_area) static void chsc_process_sei_res_acc(struct chsc_sei_area *sei_area) { - struct res_acc_data res_data; + struct chp_link link; struct chp_id chpid; int status; @@ -404,18 +301,18 @@ static void chsc_process_sei_res_acc(struct chsc_sei_area *sei_area) chp_new(chpid); else if (!status) return; - memset(&res_data, 0, sizeof(struct res_acc_data)); - res_data.chpid = chpid; + memset(&link, 0, sizeof(struct chp_link)); + link.chpid = chpid; if ((sei_area->vf & 0xc0) != 0) { - res_data.fla = sei_area->fla; + link.fla = sei_area->fla; if ((sei_area->vf & 0xc0) == 0xc0) /* full link address */ - res_data.fla_mask = 0xffff; + link.fla_mask = 0xffff; else /* link address */ - res_data.fla_mask = 0xff00; + link.fla_mask = 0xff00; } - s390_process_res_acc(&res_data); + s390_process_res_acc(&link); } struct chp_config_data { @@ -480,17 +377,25 @@ static void chsc_process_sei(struct chsc_sei_area *sei_area) } } -void chsc_process_crw(void) +static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow) { struct chsc_sei_area *sei_area; + if (overflow) { + css_schedule_eval_all(); + return; + } + CIO_CRW_EVENT(2, "CRW reports slct=%d, oflw=%d, " + "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", + crw0->slct, crw0->oflw, crw0->chn, crw0->rsc, crw0->anc, + crw0->erc, crw0->rsid); if (!sei_page) return; /* Access to sei_page is serialized through machine check handler * thread, so no need for locking. */ sei_area = sei_page; - CIO_TRACE_EVENT( 2, "prcss"); + CIO_TRACE_EVENT(2, "prcss"); do { memset(sei_area, 0, sizeof(*sei_area)); sei_area->request.length = 0x0010; @@ -509,114 +414,36 @@ void chsc_process_crw(void) } while (sei_area->flags & 0x80); } -static int __chp_add_new_sch(struct subchannel_id schid, void *data) -{ - struct schib schib; - - if (stsch_err(schid, &schib)) - /* We're through */ - return -ENXIO; - - /* Put it on the slow path. */ - css_schedule_eval(schid); - return 0; -} - - -static int __chp_add(struct subchannel *sch, void *data) -{ - int i, mask; - struct chp_id *chpid = data; - - spin_lock_irq(sch->lock); - for (i=0; i<8; i++) { - mask = 0x80 >> i; - if ((sch->schib.pmcw.pim & mask) && - (sch->schib.pmcw.chpid[i] == chpid->id)) - break; - } - if (i==8) { - spin_unlock_irq(sch->lock); - return 0; - } - if (stsch(sch->schid, &sch->schib)) { - spin_unlock_irq(sch->lock); - css_schedule_eval(sch->schid); - return 0; - } - sch->lpm = ((sch->schib.pmcw.pim & - sch->schib.pmcw.pam & - sch->schib.pmcw.pom) - | mask) & sch->opm; - - if (sch->driver && sch->driver->verify) - sch->driver->verify(sch); - - spin_unlock_irq(sch->lock); - - return 0; -} - void chsc_chp_online(struct chp_id chpid) { char dbf_txt[15]; + struct chp_link link; sprintf(dbf_txt, "cadd%x.%02x", chpid.cssid, chpid.id); CIO_TRACE_EVENT(2, dbf_txt); if (chp_get_status(chpid) != 0) { + memset(&link, 0, sizeof(struct chp_link)); + link.chpid = chpid; /* Wait until previous actions have settled. */ css_wait_for_slow_path(); - for_each_subchannel_staged(__chp_add, __chp_add_new_sch, - &chpid); + for_each_subchannel_staged(__s390_process_res_acc, NULL, + &link); } } static void __s390_subchannel_vary_chpid(struct subchannel *sch, struct chp_id chpid, int on) { - int chp, old_lpm; - int mask; unsigned long flags; + struct chp_link link; + memset(&link, 0, sizeof(struct chp_link)); + link.chpid = chpid; spin_lock_irqsave(sch->lock, flags); - old_lpm = sch->lpm; - for (chp = 0; chp < 8; chp++) { - mask = 0x80 >> chp; - if (!(sch->ssd_info.path_mask & mask)) - continue; - if (!chp_id_is_equal(&sch->ssd_info.chpid[chp], &chpid)) - continue; - - if (on) { - sch->opm |= mask; - sch->lpm |= mask; - if (!old_lpm) - device_trigger_reprobe(sch); - else if (sch->driver && sch->driver->verify) - sch->driver->verify(sch); - break; - } - sch->opm &= ~mask; - sch->lpm &= ~mask; - if (check_for_io_on_path(sch, mask)) { - if (device_is_online(sch)) - /* Path verification is done after killing. */ - device_kill_io(sch); - else { - /* Kill and retry internal I/O. */ - terminate_internal_io(sch); - /* Re-start path verification. */ - if (sch->driver && sch->driver->verify) - sch->driver->verify(sch); - } - } else if (!sch->lpm) { - if (device_trigger_verify(sch) != 0) - css_schedule_eval(sch->schid); - } else if (sch->driver && sch->driver->verify) - sch->driver->verify(sch); - break; - } + if (sch->driver && sch->driver->chp_event) + sch->driver->chp_event(sch, &link, + on ? CHP_VARY_ON : CHP_VARY_OFF); spin_unlock_irqrestore(sch->lock, flags); } @@ -656,6 +483,10 @@ __s390_vary_chpid_on(struct subchannel_id schid, void *data) */ int chsc_chp_vary(struct chp_id chpid, int on) { + struct chp_link link; + + memset(&link, 0, sizeof(struct chp_link)); + link.chpid = chpid; /* Wait until previous actions have settled. */ css_wait_for_slow_path(); /* @@ -664,10 +495,10 @@ int chsc_chp_vary(struct chp_id chpid, int on) if (on) for_each_subchannel_staged(s390_subchannel_vary_chpid_on, - __s390_vary_chpid_on, &chpid); + __s390_vary_chpid_on, &link); else for_each_subchannel_staged(s390_subchannel_vary_chpid_off, - NULL, &chpid); + NULL, &link); return 0; } @@ -797,23 +628,33 @@ chsc_secm(struct channel_subsystem *css, int enable) return ret; } -int chsc_determine_channel_path_description(struct chp_id chpid, - struct channel_path_desc *desc) +int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt, + int c, int m, + struct chsc_response_struct *resp) { int ccode, ret; struct { struct chsc_header request; - u32 : 24; + u32 : 2; + u32 m : 1; + u32 c : 1; + u32 fmt : 4; + u32 cssid : 8; + u32 : 4; + u32 rfmt : 4; u32 first_chpid : 8; u32 : 24; u32 last_chpid : 8; u32 zeroes1; struct chsc_header response; - u32 zeroes2; - struct channel_path_desc desc; + u8 data[PAGE_SIZE - 20]; } __attribute__ ((packed)) *scpd_area; + if ((rfmt == 1) && !css_general_characteristics.fcs) + return -EINVAL; + if ((rfmt == 2) && !css_general_characteristics.cib) + return -EINVAL; scpd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); if (!scpd_area) return -ENOMEM; @@ -821,8 +662,13 @@ int chsc_determine_channel_path_description(struct chp_id chpid, scpd_area->request.length = 0x0010; scpd_area->request.code = 0x0002; + scpd_area->cssid = chpid.cssid; scpd_area->first_chpid = chpid.id; scpd_area->last_chpid = chpid.id; + scpd_area->m = m; + scpd_area->c = c; + scpd_area->fmt = fmt; + scpd_area->rfmt = rfmt; ccode = chsc(scpd_area); if (ccode > 0) { @@ -833,8 +679,7 @@ int chsc_determine_channel_path_description(struct chp_id chpid, ret = chsc_error_from_response(scpd_area->response.code); if (ret == 0) /* Success. */ - memcpy(desc, &scpd_area->desc, - sizeof(struct channel_path_desc)); + memcpy(resp, &scpd_area->response, scpd_area->response.length); else CIO_CRW_EVENT(2, "chsc: scpd failed (rc=%04x)\n", scpd_area->response.code); @@ -842,6 +687,25 @@ out: free_page((unsigned long)scpd_area); return ret; } +EXPORT_SYMBOL_GPL(chsc_determine_channel_path_desc); + +int chsc_determine_base_channel_path_desc(struct chp_id chpid, + struct channel_path_desc *desc) +{ + struct chsc_response_struct *chsc_resp; + int ret; + + chsc_resp = kzalloc(sizeof(*chsc_resp), GFP_KERNEL); + if (!chsc_resp) + return -ENOMEM; + ret = chsc_determine_channel_path_desc(chpid, 0, 0, 0, 0, chsc_resp); + if (ret) + goto out_free; + memcpy(desc, &chsc_resp->data, chsc_resp->length); +out_free: + kfree(chsc_resp); + return ret; +} static void chsc_initialize_cmg_chars(struct channel_path *chp, u8 cmcv, @@ -937,15 +801,23 @@ out: int __init chsc_alloc_sei_area(void) { + int ret; + sei_page = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); - if (!sei_page) + if (!sei_page) { CIO_MSG_EVENT(0, "Can't allocate page for processing of " "chsc machine checks!\n"); - return (sei_page ? 0 : -ENOMEM); + return -ENOMEM; + } + ret = s390_register_crw_handler(CRW_RSC_CSS, chsc_process_crw); + if (ret) + kfree(sei_page); + return ret; } void __init chsc_free_sei_area(void) { + s390_unregister_crw_handler(CRW_RSC_CSS); kfree(sei_page); } @@ -1043,3 +915,52 @@ exit: EXPORT_SYMBOL_GPL(css_general_characteristics); EXPORT_SYMBOL_GPL(css_chsc_characteristics); + +int chsc_sstpc(void *page, unsigned int op, u16 ctrl) +{ + struct { + struct chsc_header request; + unsigned int rsvd0; + unsigned int op : 8; + unsigned int rsvd1 : 8; + unsigned int ctrl : 16; + unsigned int rsvd2[5]; + struct chsc_header response; + unsigned int rsvd3[7]; + } __attribute__ ((packed)) *rr; + int rc; + + memset(page, 0, PAGE_SIZE); + rr = page; + rr->request.length = 0x0020; + rr->request.code = 0x0033; + rr->op = op; + rr->ctrl = ctrl; + rc = chsc(rr); + if (rc) + return -EIO; + rc = (rr->response.code == 0x0001) ? 0 : -EIO; + return rc; +} + +int chsc_sstpi(void *page, void *result, size_t size) +{ + struct { + struct chsc_header request; + unsigned int rsvd0[3]; + struct chsc_header response; + char data[size]; + } __attribute__ ((packed)) *rr; + int rc; + + memset(page, 0, PAGE_SIZE); + rr = page; + rr->request.length = 0x0010; + rr->request.code = 0x0038; + rc = chsc(rr); + if (rc) + return -EIO; + memcpy(result, &rr->data, size); + return (rr->response.code == 0x0001) ? 0 : -EIO; +} + diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h index d1f5db1e69b9..fb6c4d6c45b4 100644 --- a/drivers/s390/cio/chsc.h +++ b/drivers/s390/cio/chsc.h @@ -4,7 +4,8 @@ #include <linux/types.h> #include <linux/device.h> #include <asm/chpid.h> -#include "schid.h" +#include <asm/chsc.h> +#include <asm/schid.h> #define CHSC_SDA_OC_MSS 0x2 @@ -36,14 +37,15 @@ struct channel_path_desc { struct channel_path; -extern void chsc_process_crw(void); - struct css_general_char { - u64 : 41; + u64 : 12; + u32 dynio : 1; /* bit 12 */ + u32 : 28; u32 aif : 1; /* bit 41 */ u32 : 3; u32 mcss : 1; /* bit 45 */ - u32 : 2; + u32 fcs : 1; /* bit 46 */ + u32 : 1; u32 ext_mb : 1; /* bit 48 */ u32 : 7; u32 aif_tdd : 1; /* bit 56 */ @@ -51,7 +53,11 @@ struct css_general_char { u32 qebsm : 1; /* bit 58 */ u32 : 8; u32 aif_osa : 1; /* bit 67 */ - u32 : 28; + u32 : 14; + u32 cib : 1; /* bit 82 */ + u32 : 5; + u32 fcx : 1; /* bit 88 */ + u32 : 7; }__attribute__((packed)); struct css_chsc_char { @@ -78,7 +84,6 @@ struct chsc_ssd_info { extern int chsc_get_ssd_info(struct subchannel_id schid, struct chsc_ssd_info *ssd); extern int chsc_determine_css_characteristics(void); -extern int css_characteristics_avail; extern int chsc_alloc_sei_area(void); extern void chsc_free_sei_area(void); @@ -87,8 +92,11 @@ struct channel_subsystem; extern int chsc_secm(struct channel_subsystem *, int); int chsc_chp_vary(struct chp_id chpid, int on); -int chsc_determine_channel_path_description(struct chp_id chpid, - struct channel_path_desc *desc); +int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt, + int c, int m, + struct chsc_response_struct *resp); +int chsc_determine_base_channel_path_desc(struct chp_id chpid, + struct channel_path_desc *desc); void chsc_chp_online(struct chp_id chpid); void chsc_chp_offline(struct chp_id chpid); int chsc_get_channel_measurement_chars(struct channel_path *chp); diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c new file mode 100644 index 000000000000..91ca87aa9f97 --- /dev/null +++ b/drivers/s390/cio/chsc_sch.c @@ -0,0 +1,820 @@ +/* + * Driver for s390 chsc subchannels + * + * Copyright IBM Corp. 2008 + * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> + * + */ + +#include <linux/device.h> +#include <linux/module.h> +#include <linux/uaccess.h> +#include <linux/miscdevice.h> + +#include <asm/cio.h> +#include <asm/chsc.h> +#include <asm/isc.h> + +#include "cio.h" +#include "cio_debug.h" +#include "css.h" +#include "chsc_sch.h" +#include "ioasm.h" + +static debug_info_t *chsc_debug_msg_id; +static debug_info_t *chsc_debug_log_id; + +#define CHSC_MSG(imp, args...) do { \ + debug_sprintf_event(chsc_debug_msg_id, imp , ##args); \ + } while (0) + +#define CHSC_LOG(imp, txt) do { \ + debug_text_event(chsc_debug_log_id, imp , txt); \ + } while (0) + +static void CHSC_LOG_HEX(int level, void *data, int length) +{ + while (length > 0) { + debug_event(chsc_debug_log_id, level, data, length); + length -= chsc_debug_log_id->buf_size; + data += chsc_debug_log_id->buf_size; + } +} + +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("driver for s390 chsc subchannels"); +MODULE_LICENSE("GPL"); + +static void chsc_subchannel_irq(struct subchannel *sch) +{ + struct chsc_private *private = sch->private; + struct chsc_request *request = private->request; + struct irb *irb = (struct irb *)__LC_IRB; + + CHSC_LOG(4, "irb"); + CHSC_LOG_HEX(4, irb, sizeof(*irb)); + /* Copy irb to provided request and set done. */ + if (!request) { + CHSC_MSG(0, "Interrupt on sch 0.%x.%04x with no request\n", + sch->schid.ssid, sch->schid.sch_no); + return; + } + private->request = NULL; + memcpy(&request->irb, irb, sizeof(*irb)); + stsch(sch->schid, &sch->schib); + complete(&request->completion); + put_device(&sch->dev); +} + +static int chsc_subchannel_probe(struct subchannel *sch) +{ + struct chsc_private *private; + int ret; + + CHSC_MSG(6, "Detected chsc subchannel 0.%x.%04x\n", + sch->schid.ssid, sch->schid.sch_no); + sch->isc = CHSC_SCH_ISC; + private = kzalloc(sizeof(*private), GFP_KERNEL); + if (!private) + return -ENOMEM; + ret = cio_enable_subchannel(sch, (u32)(unsigned long)sch); + if (ret) { + CHSC_MSG(0, "Failed to enable 0.%x.%04x: %d\n", + sch->schid.ssid, sch->schid.sch_no, ret); + kfree(private); + } else { + sch->private = private; + if (sch->dev.uevent_suppress) { + sch->dev.uevent_suppress = 0; + kobject_uevent(&sch->dev.kobj, KOBJ_ADD); + } + } + return ret; +} + +static int chsc_subchannel_remove(struct subchannel *sch) +{ + struct chsc_private *private; + + cio_disable_subchannel(sch); + private = sch->private; + sch->private = NULL; + if (private->request) { + complete(&private->request->completion); + put_device(&sch->dev); + } + kfree(private); + return 0; +} + +static void chsc_subchannel_shutdown(struct subchannel *sch) +{ + cio_disable_subchannel(sch); +} + +static struct css_device_id chsc_subchannel_ids[] = { + { .match_flags = 0x1, .type =SUBCHANNEL_TYPE_CHSC, }, + { /* end of list */ }, +}; +MODULE_DEVICE_TABLE(css, chsc_subchannel_ids); + +static struct css_driver chsc_subchannel_driver = { + .owner = THIS_MODULE, + .subchannel_type = chsc_subchannel_ids, + .irq = chsc_subchannel_irq, + .probe = chsc_subchannel_probe, + .remove = chsc_subchannel_remove, + .shutdown = chsc_subchannel_shutdown, + .name = "chsc_subchannel", +}; + +static int __init chsc_init_dbfs(void) +{ + chsc_debug_msg_id = debug_register("chsc_msg", 16, 1, + 16 * sizeof(long)); + if (!chsc_debug_msg_id) + goto out; + debug_register_view(chsc_debug_msg_id, &debug_sprintf_view); + debug_set_level(chsc_debug_msg_id, 2); + chsc_debug_log_id = debug_register("chsc_log", 16, 1, 16); + if (!chsc_debug_log_id) + goto out; + debug_register_view(chsc_debug_log_id, &debug_hex_ascii_view); + debug_set_level(chsc_debug_log_id, 2); + return 0; +out: + if (chsc_debug_msg_id) + debug_unregister(chsc_debug_msg_id); + return -ENOMEM; +} + +static void chsc_remove_dbfs(void) +{ + debug_unregister(chsc_debug_log_id); + debug_unregister(chsc_debug_msg_id); +} + +static int __init chsc_init_sch_driver(void) +{ + return css_driver_register(&chsc_subchannel_driver); +} + +static void chsc_cleanup_sch_driver(void) +{ + css_driver_unregister(&chsc_subchannel_driver); +} + +static DEFINE_SPINLOCK(chsc_lock); + +static int chsc_subchannel_match_next_free(struct device *dev, void *data) +{ + struct subchannel *sch = to_subchannel(dev); + + return sch->schib.pmcw.ena && !scsw_fctl(&sch->schib.scsw); +} + +static struct subchannel *chsc_get_next_subchannel(struct subchannel *sch) +{ + struct device *dev; + + dev = driver_find_device(&chsc_subchannel_driver.drv, + sch ? &sch->dev : NULL, NULL, + chsc_subchannel_match_next_free); + return dev ? to_subchannel(dev) : NULL; +} + +/** + * chsc_async() - try to start a chsc request asynchronously + * @chsc_area: request to be started + * @request: request structure to associate + * + * Tries to start a chsc request on one of the existing chsc subchannels. + * Returns: + * %0 if the request was performed synchronously + * %-EINPROGRESS if the request was successfully started + * %-EBUSY if all chsc subchannels are busy + * %-ENODEV if no chsc subchannels are available + * Context: + * interrupts disabled, chsc_lock held + */ +static int chsc_async(struct chsc_async_area *chsc_area, + struct chsc_request *request) +{ + int cc; + struct chsc_private *private; + struct subchannel *sch = NULL; + int ret = -ENODEV; + char dbf[10]; + + chsc_area->header.key = PAGE_DEFAULT_KEY; + while ((sch = chsc_get_next_subchannel(sch))) { + spin_lock(sch->lock); + private = sch->private; + if (private->request) { + spin_unlock(sch->lock); + ret = -EBUSY; + continue; + } + chsc_area->header.sid = sch->schid; + CHSC_LOG(2, "schid"); + CHSC_LOG_HEX(2, &sch->schid, sizeof(sch->schid)); + cc = chsc(chsc_area); + sprintf(dbf, "cc:%d", cc); + CHSC_LOG(2, dbf); + switch (cc) { + case 0: + ret = 0; + break; + case 1: + sch->schib.scsw.cmd.fctl |= SCSW_FCTL_START_FUNC; + ret = -EINPROGRESS; + private->request = request; + break; + case 2: + ret = -EBUSY; + break; + default: + ret = -ENODEV; + } + spin_unlock(sch->lock); + CHSC_MSG(2, "chsc on 0.%x.%04x returned cc=%d\n", + sch->schid.ssid, sch->schid.sch_no, cc); + if (ret == -EINPROGRESS) + return -EINPROGRESS; + put_device(&sch->dev); + if (ret == 0) + return 0; + } + return ret; +} + +static void chsc_log_command(struct chsc_async_area *chsc_area) +{ + char dbf[10]; + + sprintf(dbf, "CHSC:%x", chsc_area->header.code); + CHSC_LOG(0, dbf); + CHSC_LOG_HEX(0, chsc_area, 32); +} + +static int chsc_examine_irb(struct chsc_request *request) +{ + int backed_up; + + if (!scsw_stctl(&request->irb.scsw) & SCSW_STCTL_STATUS_PEND) + return -EIO; + backed_up = scsw_cstat(&request->irb.scsw) & SCHN_STAT_CHAIN_CHECK; + request->irb.scsw.cmd.cstat &= ~SCHN_STAT_CHAIN_CHECK; + if (scsw_cstat(&request->irb.scsw) == 0) + return 0; + if (!backed_up) + return 0; + if (scsw_cstat(&request->irb.scsw) & SCHN_STAT_PROG_CHECK) + return -EIO; + if (scsw_cstat(&request->irb.scsw) & SCHN_STAT_PROT_CHECK) + return -EPERM; + if (scsw_cstat(&request->irb.scsw) & SCHN_STAT_CHN_DATA_CHK) + return -EAGAIN; + if (scsw_cstat(&request->irb.scsw) & SCHN_STAT_CHN_CTRL_CHK) + return -EAGAIN; + return -EIO; +} + +static int chsc_ioctl_start(void __user *user_area) +{ + struct chsc_request *request; + struct chsc_async_area *chsc_area; + int ret; + char dbf[10]; + + if (!css_general_characteristics.dynio) + /* It makes no sense to try. */ + return -EOPNOTSUPP; + chsc_area = (void *)get_zeroed_page(GFP_DMA | GFP_KERNEL); + if (!chsc_area) + return -ENOMEM; + request = kzalloc(sizeof(*request), GFP_KERNEL); + if (!request) { + ret = -ENOMEM; + goto out_free; + } + init_completion(&request->completion); + if (copy_from_user(chsc_area, user_area, PAGE_SIZE)) { + ret = -EFAULT; + goto out_free; + } + chsc_log_command(chsc_area); + spin_lock_irq(&chsc_lock); + ret = chsc_async(chsc_area, request); + spin_unlock_irq(&chsc_lock); + if (ret == -EINPROGRESS) { + wait_for_completion(&request->completion); + ret = chsc_examine_irb(request); + } + /* copy area back to user */ + if (!ret) + if (copy_to_user(user_area, chsc_area, PAGE_SIZE)) + ret = -EFAULT; +out_free: + sprintf(dbf, "ret:%d", ret); + CHSC_LOG(0, dbf); + kfree(request); + free_page((unsigned long)chsc_area); + return ret; +} + +static int chsc_ioctl_info_channel_path(void __user *user_cd) +{ + struct chsc_chp_cd *cd; + int ret, ccode; + struct { + struct chsc_header request; + u32 : 2; + u32 m : 1; + u32 : 1; + u32 fmt1 : 4; + u32 cssid : 8; + u32 : 8; + u32 first_chpid : 8; + u32 : 24; + u32 last_chpid : 8; + u32 : 32; + struct chsc_header response; + u8 data[PAGE_SIZE - 20]; + } __attribute__ ((packed)) *scpcd_area; + + scpcd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!scpcd_area) + return -ENOMEM; + cd = kzalloc(sizeof(*cd), GFP_KERNEL); + if (!cd) { + ret = -ENOMEM; + goto out_free; + } + if (copy_from_user(cd, user_cd, sizeof(*cd))) { + ret = -EFAULT; + goto out_free; + } + scpcd_area->request.length = 0x0010; + scpcd_area->request.code = 0x0028; + scpcd_area->m = cd->m; + scpcd_area->fmt1 = cd->fmt; + scpcd_area->cssid = cd->chpid.cssid; + scpcd_area->first_chpid = cd->chpid.id; + scpcd_area->last_chpid = cd->chpid.id; + + ccode = chsc(scpcd_area); + if (ccode != 0) { + ret = -EIO; + goto out_free; + } + if (scpcd_area->response.code != 0x0001) { + ret = -EIO; + CHSC_MSG(0, "scpcd: response code=%x\n", + scpcd_area->response.code); + goto out_free; + } + memcpy(&cd->cpcb, &scpcd_area->response, scpcd_area->response.length); + if (copy_to_user(user_cd, cd, sizeof(*cd))) + ret = -EFAULT; + else + ret = 0; +out_free: + kfree(cd); + free_page((unsigned long)scpcd_area); + return ret; +} + +static int chsc_ioctl_info_cu(void __user *user_cd) +{ + struct chsc_cu_cd *cd; + int ret, ccode; + struct { + struct chsc_header request; + u32 : 2; + u32 m : 1; + u32 : 1; + u32 fmt1 : 4; + u32 cssid : 8; + u32 : 8; + u32 first_cun : 8; + u32 : 24; + u32 last_cun : 8; + u32 : 32; + struct chsc_header response; + u8 data[PAGE_SIZE - 20]; + } __attribute__ ((packed)) *scucd_area; + + scucd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!scucd_area) + return -ENOMEM; + cd = kzalloc(sizeof(*cd), GFP_KERNEL); + if (!cd) { + ret = -ENOMEM; + goto out_free; + } + if (copy_from_user(cd, user_cd, sizeof(*cd))) { + ret = -EFAULT; + goto out_free; + } + scucd_area->request.length = 0x0010; + scucd_area->request.code = 0x0028; + scucd_area->m = cd->m; + scucd_area->fmt1 = cd->fmt; + scucd_area->cssid = cd->cssid; + scucd_area->first_cun = cd->cun; + scucd_area->last_cun = cd->cun; + + ccode = chsc(scucd_area); + if (ccode != 0) { + ret = -EIO; + goto out_free; + } + if (scucd_area->response.code != 0x0001) { + ret = -EIO; + CHSC_MSG(0, "scucd: response code=%x\n", + scucd_area->response.code); + goto out_free; + } + memcpy(&cd->cucb, &scucd_area->response, scucd_area->response.length); + if (copy_to_user(user_cd, cd, sizeof(*cd))) + ret = -EFAULT; + else + ret = 0; +out_free: + kfree(cd); + free_page((unsigned long)scucd_area); + return ret; +} + +static int chsc_ioctl_info_sch_cu(void __user *user_cud) +{ + struct chsc_sch_cud *cud; + int ret, ccode; + struct { + struct chsc_header request; + u32 : 2; + u32 m : 1; + u32 : 5; + u32 fmt1 : 4; + u32 : 2; + u32 ssid : 2; + u32 first_sch : 16; + u32 : 8; + u32 cssid : 8; + u32 last_sch : 16; + u32 : 32; + struct chsc_header response; + u8 data[PAGE_SIZE - 20]; + } __attribute__ ((packed)) *sscud_area; + + sscud_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!sscud_area) + return -ENOMEM; + cud = kzalloc(sizeof(*cud), GFP_KERNEL); + if (!cud) { + ret = -ENOMEM; + goto out_free; + } + if (copy_from_user(cud, user_cud, sizeof(*cud))) { + ret = -EFAULT; + goto out_free; + } + sscud_area->request.length = 0x0010; + sscud_area->request.code = 0x0006; + sscud_area->m = cud->schid.m; + sscud_area->fmt1 = cud->fmt; + sscud_area->ssid = cud->schid.ssid; + sscud_area->first_sch = cud->schid.sch_no; + sscud_area->cssid = cud->schid.cssid; + sscud_area->last_sch = cud->schid.sch_no; + + ccode = chsc(sscud_area); + if (ccode != 0) { + ret = -EIO; + goto out_free; + } + if (sscud_area->response.code != 0x0001) { + ret = -EIO; + CHSC_MSG(0, "sscud: response code=%x\n", + sscud_area->response.code); + goto out_free; + } + memcpy(&cud->scub, &sscud_area->response, sscud_area->response.length); + if (copy_to_user(user_cud, cud, sizeof(*cud))) + ret = -EFAULT; + else + ret = 0; +out_free: + kfree(cud); + free_page((unsigned long)sscud_area); + return ret; +} + +static int chsc_ioctl_conf_info(void __user *user_ci) +{ + struct chsc_conf_info *ci; + int ret, ccode; + struct { + struct chsc_header request; + u32 : 2; + u32 m : 1; + u32 : 1; + u32 fmt1 : 4; + u32 cssid : 8; + u32 : 6; + u32 ssid : 2; + u32 : 8; + u64 : 64; + struct chsc_header response; + u8 data[PAGE_SIZE - 20]; + } __attribute__ ((packed)) *sci_area; + + sci_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!sci_area) + return -ENOMEM; + ci = kzalloc(sizeof(*ci), GFP_KERNEL); + if (!ci) { + ret = -ENOMEM; + goto out_free; + } + if (copy_from_user(ci, user_ci, sizeof(*ci))) { + ret = -EFAULT; + goto out_free; + } + sci_area->request.length = 0x0010; + sci_area->request.code = 0x0012; + sci_area->m = ci->id.m; + sci_area->fmt1 = ci->fmt; + sci_area->cssid = ci->id.cssid; + sci_area->ssid = ci->id.ssid; + + ccode = chsc(sci_area); + if (ccode != 0) { + ret = -EIO; + goto out_free; + } + if (sci_area->response.code != 0x0001) { + ret = -EIO; + CHSC_MSG(0, "sci: response code=%x\n", + sci_area->response.code); + goto out_free; + } + memcpy(&ci->scid, &sci_area->response, sci_area->response.length); + if (copy_to_user(user_ci, ci, sizeof(*ci))) + ret = -EFAULT; + else + ret = 0; +out_free: + kfree(ci); + free_page((unsigned long)sci_area); + return ret; +} + +static int chsc_ioctl_conf_comp_list(void __user *user_ccl) +{ + struct chsc_comp_list *ccl; + int ret, ccode; + struct { + struct chsc_header request; + u32 ctype : 8; + u32 : 4; + u32 fmt : 4; + u32 : 16; + u64 : 64; + u32 list_parm[2]; + u64 : 64; + struct chsc_header response; + u8 data[PAGE_SIZE - 36]; + } __attribute__ ((packed)) *sccl_area; + struct { + u32 m : 1; + u32 : 31; + u32 cssid : 8; + u32 : 16; + u32 chpid : 8; + } __attribute__ ((packed)) *chpid_parm; + struct { + u32 f_cssid : 8; + u32 l_cssid : 8; + u32 : 16; + u32 res; + } __attribute__ ((packed)) *cssids_parm; + + sccl_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!sccl_area) + return -ENOMEM; + ccl = kzalloc(sizeof(*ccl), GFP_KERNEL); + if (!ccl) { + ret = -ENOMEM; + goto out_free; + } + if (copy_from_user(ccl, user_ccl, sizeof(*ccl))) { + ret = -EFAULT; + goto out_free; + } + sccl_area->request.length = 0x0020; + sccl_area->request.code = 0x0030; + sccl_area->fmt = ccl->req.fmt; + sccl_area->ctype = ccl->req.ctype; + switch (sccl_area->ctype) { + case CCL_CU_ON_CHP: + case CCL_IOP_CHP: + chpid_parm = (void *)&sccl_area->list_parm; + chpid_parm->m = ccl->req.chpid.m; + chpid_parm->cssid = ccl->req.chpid.chp.cssid; + chpid_parm->chpid = ccl->req.chpid.chp.id; + break; + case CCL_CSS_IMG: + case CCL_CSS_IMG_CONF_CHAR: + cssids_parm = (void *)&sccl_area->list_parm; + cssids_parm->f_cssid = ccl->req.cssids.f_cssid; + cssids_parm->l_cssid = ccl->req.cssids.l_cssid; + break; + } + ccode = chsc(sccl_area); + if (ccode != 0) { + ret = -EIO; + goto out_free; + } + if (sccl_area->response.code != 0x0001) { + ret = -EIO; + CHSC_MSG(0, "sccl: response code=%x\n", + sccl_area->response.code); + goto out_free; + } + memcpy(&ccl->sccl, &sccl_area->response, sccl_area->response.length); + if (copy_to_user(user_ccl, ccl, sizeof(*ccl))) + ret = -EFAULT; + else + ret = 0; +out_free: + kfree(ccl); + free_page((unsigned long)sccl_area); + return ret; +} + +static int chsc_ioctl_chpd(void __user *user_chpd) +{ + struct chsc_cpd_info *chpd; + int ret; + + chpd = kzalloc(sizeof(*chpd), GFP_KERNEL); + if (!chpd) + return -ENOMEM; + if (copy_from_user(chpd, user_chpd, sizeof(*chpd))) { + ret = -EFAULT; + goto out_free; + } + ret = chsc_determine_channel_path_desc(chpd->chpid, chpd->fmt, + chpd->rfmt, chpd->c, chpd->m, + &chpd->chpdb); + if (ret) + goto out_free; + if (copy_to_user(user_chpd, chpd, sizeof(*chpd))) + ret = -EFAULT; +out_free: + kfree(chpd); + return ret; +} + +static int chsc_ioctl_dcal(void __user *user_dcal) +{ + struct chsc_dcal *dcal; + int ret, ccode; + struct { + struct chsc_header request; + u32 atype : 8; + u32 : 4; + u32 fmt : 4; + u32 : 16; + u32 res0[2]; + u32 list_parm[2]; + u32 res1[2]; + struct chsc_header response; + u8 data[PAGE_SIZE - 36]; + } __attribute__ ((packed)) *sdcal_area; + + sdcal_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!sdcal_area) + return -ENOMEM; + dcal = kzalloc(sizeof(*dcal), GFP_KERNEL); + if (!dcal) { + ret = -ENOMEM; + goto out_free; + } + if (copy_from_user(dcal, user_dcal, sizeof(*dcal))) { + ret = -EFAULT; + goto out_free; + } + sdcal_area->request.length = 0x0020; + sdcal_area->request.code = 0x0034; + sdcal_area->atype = dcal->req.atype; + sdcal_area->fmt = dcal->req.fmt; + memcpy(&sdcal_area->list_parm, &dcal->req.list_parm, + sizeof(sdcal_area->list_parm)); + + ccode = chsc(sdcal_area); + if (ccode != 0) { + ret = -EIO; + goto out_free; + } + if (sdcal_area->response.code != 0x0001) { + ret = -EIO; + CHSC_MSG(0, "sdcal: response code=%x\n", + sdcal_area->response.code); + goto out_free; + } + memcpy(&dcal->sdcal, &sdcal_area->response, + sdcal_area->response.length); + if (copy_to_user(user_dcal, dcal, sizeof(*dcal))) + ret = -EFAULT; + else + ret = 0; +out_free: + kfree(dcal); + free_page((unsigned long)sdcal_area); + return ret; +} + +static long chsc_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) +{ + CHSC_MSG(2, "chsc_ioctl called, cmd=%x\n", cmd); + switch (cmd) { + case CHSC_START: + return chsc_ioctl_start((void __user *)arg); + case CHSC_INFO_CHANNEL_PATH: + return chsc_ioctl_info_channel_path((void __user *)arg); + case CHSC_INFO_CU: + return chsc_ioctl_info_cu((void __user *)arg); + case CHSC_INFO_SCH_CU: + return chsc_ioctl_info_sch_cu((void __user *)arg); + case CHSC_INFO_CI: + return chsc_ioctl_conf_info((void __user *)arg); + case CHSC_INFO_CCL: + return chsc_ioctl_conf_comp_list((void __user *)arg); + case CHSC_INFO_CPD: + return chsc_ioctl_chpd((void __user *)arg); + case CHSC_INFO_DCAL: + return chsc_ioctl_dcal((void __user *)arg); + default: /* unknown ioctl number */ + return -ENOIOCTLCMD; + } +} + +static const struct file_operations chsc_fops = { + .owner = THIS_MODULE, + .unlocked_ioctl = chsc_ioctl, + .compat_ioctl = chsc_ioctl, +}; + +static struct miscdevice chsc_misc_device = { + .minor = MISC_DYNAMIC_MINOR, + .name = "chsc", + .fops = &chsc_fops, +}; + +static int __init chsc_misc_init(void) +{ + return misc_register(&chsc_misc_device); +} + +static void chsc_misc_cleanup(void) +{ + misc_deregister(&chsc_misc_device); +} + +static int __init chsc_sch_init(void) +{ + int ret; + + ret = chsc_init_dbfs(); + if (ret) + return ret; + isc_register(CHSC_SCH_ISC); + ret = chsc_init_sch_driver(); + if (ret) + goto out_dbf; + ret = chsc_misc_init(); + if (ret) + goto out_driver; + return ret; +out_driver: + chsc_cleanup_sch_driver(); +out_dbf: + isc_unregister(CHSC_SCH_ISC); + chsc_remove_dbfs(); + return ret; +} + +static void __exit chsc_sch_exit(void) +{ + chsc_misc_cleanup(); + chsc_cleanup_sch_driver(); + isc_unregister(CHSC_SCH_ISC); + chsc_remove_dbfs(); +} + +module_init(chsc_sch_init); +module_exit(chsc_sch_exit); diff --git a/drivers/s390/cio/chsc_sch.h b/drivers/s390/cio/chsc_sch.h new file mode 100644 index 000000000000..589ebfad6aad --- /dev/null +++ b/drivers/s390/cio/chsc_sch.h @@ -0,0 +1,13 @@ +#ifndef _CHSC_SCH_H +#define _CHSC_SCH_H + +struct chsc_request { + struct completion completion; + struct irb irb; +}; + +struct chsc_private { + struct chsc_request *request; +}; + +#endif diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index b32d7eb3d81a..bc4f36bdc049 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -2,7 +2,7 @@ * drivers/s390/cio/cio.c * S/390 common I/O routines -- low level i/o calls * - * Copyright (C) IBM Corp. 1999,2006 + * Copyright IBM Corp. 1999,2008 * Author(s): Ingo Adlung (adlung@de.ibm.com) * Cornelia Huck (cornelia.huck@de.ibm.com) * Arnd Bergmann (arndb@de.ibm.com) @@ -24,7 +24,9 @@ #include <asm/ipl.h> #include <asm/chpid.h> #include <asm/airq.h> +#include <asm/isc.h> #include <asm/cpu.h> +#include <asm/fcx.h> #include "cio.h" #include "css.h" #include "chsc.h" @@ -128,7 +130,7 @@ cio_tpi(void) local_bh_disable(); irq_enter (); spin_lock(sch->lock); - memcpy (&sch->schib.scsw, &irb->scsw, sizeof (struct scsw)); + memcpy(&sch->schib.scsw, &irb->scsw, sizeof(union scsw)); if (sch->driver && sch->driver->irq) sch->driver->irq(sch); spin_unlock(sch->lock); @@ -152,7 +154,7 @@ cio_start_handle_notoper(struct subchannel *sch, __u8 lpm) CIO_MSG_EVENT(2, "cio_start: 'not oper' status for " "subchannel 0.%x.%04x!\n", sch->schid.ssid, sch->schid.sch_no); - sprintf(dbf_text, "no%s", sch->dev.bus_id); + sprintf(dbf_text, "no%s", dev_name(&sch->dev)); CIO_TRACE_EVENT(0, dbf_text); CIO_HEX_EVENT(0, &sch->schib, sizeof (struct schib)); @@ -167,30 +169,30 @@ cio_start_key (struct subchannel *sch, /* subchannel structure */ { char dbf_txt[15]; int ccode; - struct orb *orb; + union orb *orb; CIO_TRACE_EVENT(4, "stIO"); - CIO_TRACE_EVENT(4, sch->dev.bus_id); + CIO_TRACE_EVENT(4, dev_name(&sch->dev)); orb = &to_io_private(sch)->orb; /* sch is always under 2G. */ - orb->intparm = (u32)(addr_t)sch; - orb->fmt = 1; + orb->cmd.intparm = (u32)(addr_t)sch; + orb->cmd.fmt = 1; - orb->pfch = sch->options.prefetch == 0; - orb->spnd = sch->options.suspend; - orb->ssic = sch->options.suspend && sch->options.inter; - orb->lpm = (lpm != 0) ? lpm : sch->lpm; + orb->cmd.pfch = sch->options.prefetch == 0; + orb->cmd.spnd = sch->options.suspend; + orb->cmd.ssic = sch->options.suspend && sch->options.inter; + orb->cmd.lpm = (lpm != 0) ? lpm : sch->lpm; #ifdef CONFIG_64BIT /* * for 64 bit we always support 64 bit IDAWs with 4k page size only */ - orb->c64 = 1; - orb->i2k = 0; + orb->cmd.c64 = 1; + orb->cmd.i2k = 0; #endif - orb->key = key >> 4; + orb->cmd.key = key >> 4; /* issue "Start Subchannel" */ - orb->cpa = (__u32) __pa(cpa); + orb->cmd.cpa = (__u32) __pa(cpa); ccode = ssch(sch->schid, orb); /* process condition code */ @@ -202,7 +204,7 @@ cio_start_key (struct subchannel *sch, /* subchannel structure */ /* * initialize device status information */ - sch->schib.scsw.actl |= SCSW_ACTL_START_PEND; + sch->schib.scsw.cmd.actl |= SCSW_ACTL_START_PEND; return 0; case 1: /* status pending */ case 2: /* busy */ @@ -228,7 +230,7 @@ cio_resume (struct subchannel *sch) int ccode; CIO_TRACE_EVENT (4, "resIO"); - CIO_TRACE_EVENT (4, sch->dev.bus_id); + CIO_TRACE_EVENT (4, dev_name(&sch->dev)); ccode = rsch (sch->schid); @@ -237,7 +239,7 @@ cio_resume (struct subchannel *sch) switch (ccode) { case 0: - sch->schib.scsw.actl |= SCSW_ACTL_RESUME_PEND; + sch->schib.scsw.cmd.actl |= SCSW_ACTL_RESUME_PEND; return 0; case 1: return -EBUSY; @@ -265,7 +267,7 @@ cio_halt(struct subchannel *sch) return -ENODEV; CIO_TRACE_EVENT (2, "haltIO"); - CIO_TRACE_EVENT (2, sch->dev.bus_id); + CIO_TRACE_EVENT (2, dev_name(&sch->dev)); /* * Issue "Halt subchannel" and process condition code @@ -277,7 +279,7 @@ cio_halt(struct subchannel *sch) switch (ccode) { case 0: - sch->schib.scsw.actl |= SCSW_ACTL_HALT_PEND; + sch->schib.scsw.cmd.actl |= SCSW_ACTL_HALT_PEND; return 0; case 1: /* status pending */ case 2: /* busy */ @@ -300,7 +302,7 @@ cio_clear(struct subchannel *sch) return -ENODEV; CIO_TRACE_EVENT (2, "clearIO"); - CIO_TRACE_EVENT (2, sch->dev.bus_id); + CIO_TRACE_EVENT (2, dev_name(&sch->dev)); /* * Issue "Clear subchannel" and process condition code @@ -312,7 +314,7 @@ cio_clear(struct subchannel *sch) switch (ccode) { case 0: - sch->schib.scsw.actl |= SCSW_ACTL_CLEAR_PEND; + sch->schib.scsw.cmd.actl |= SCSW_ACTL_CLEAR_PEND; return 0; default: /* device not operational */ return -ENODEV; @@ -336,7 +338,7 @@ cio_cancel (struct subchannel *sch) return -ENODEV; CIO_TRACE_EVENT (2, "cancelIO"); - CIO_TRACE_EVENT (2, sch->dev.bus_id); + CIO_TRACE_EVENT (2, dev_name(&sch->dev)); ccode = xsch (sch->schid); @@ -387,8 +389,10 @@ cio_modify (struct subchannel *sch) return ret; } -/* - * Enable subchannel. +/** + * cio_enable_subchannel - enable a subchannel. + * @sch: subchannel to be enabled + * @intparm: interruption parameter to set */ int cio_enable_subchannel(struct subchannel *sch, u32 intparm) { @@ -398,7 +402,7 @@ int cio_enable_subchannel(struct subchannel *sch, u32 intparm) int ret; CIO_TRACE_EVENT (2, "ensch"); - CIO_TRACE_EVENT (2, sch->dev.bus_id); + CIO_TRACE_EVENT (2, dev_name(&sch->dev)); if (sch_is_pseudo_sch(sch)) return -EINVAL; @@ -434,12 +438,13 @@ int cio_enable_subchannel(struct subchannel *sch, u32 intparm) CIO_TRACE_EVENT (2, dbf_txt); return ret; } +EXPORT_SYMBOL_GPL(cio_enable_subchannel); -/* - * Disable subchannel. +/** + * cio_disable_subchannel - disable a subchannel. + * @sch: subchannel to disable */ -int -cio_disable_subchannel (struct subchannel *sch) +int cio_disable_subchannel(struct subchannel *sch) { char dbf_txt[15]; int ccode; @@ -447,7 +452,7 @@ cio_disable_subchannel (struct subchannel *sch) int ret; CIO_TRACE_EVENT (2, "dissch"); - CIO_TRACE_EVENT (2, sch->dev.bus_id); + CIO_TRACE_EVENT (2, dev_name(&sch->dev)); if (sch_is_pseudo_sch(sch)) return 0; @@ -455,7 +460,7 @@ cio_disable_subchannel (struct subchannel *sch) if (ccode == 3) /* Not operational. */ return -ENODEV; - if (sch->schib.scsw.actl != 0) + if (scsw_actl(&sch->schib.scsw) != 0) /* * the disable function must not be called while there are * requests pending for completion ! @@ -484,6 +489,7 @@ cio_disable_subchannel (struct subchannel *sch) CIO_TRACE_EVENT (2, dbf_txt); return ret; } +EXPORT_SYMBOL_GPL(cio_disable_subchannel); int cio_create_sch_lock(struct subchannel *sch) { @@ -494,27 +500,61 @@ int cio_create_sch_lock(struct subchannel *sch) return 0; } -/* - * cio_validate_subchannel() +static int cio_check_devno_blacklisted(struct subchannel *sch) +{ + if (is_blacklisted(sch->schid.ssid, sch->schib.pmcw.dev)) { + /* + * This device must not be known to Linux. So we simply + * say that there is no device and return ENODEV. + */ + CIO_MSG_EVENT(6, "Blacklisted device detected " + "at devno %04X, subchannel set %x\n", + sch->schib.pmcw.dev, sch->schid.ssid); + return -ENODEV; + } + return 0; +} + +static int cio_validate_io_subchannel(struct subchannel *sch) +{ + /* Initialization for io subchannels. */ + if (!css_sch_is_valid(&sch->schib)) + return -ENODEV; + + /* Devno is valid. */ + return cio_check_devno_blacklisted(sch); +} + +static int cio_validate_msg_subchannel(struct subchannel *sch) +{ + /* Initialization for message subchannels. */ + if (!css_sch_is_valid(&sch->schib)) + return -ENODEV; + + /* Devno is valid. */ + return cio_check_devno_blacklisted(sch); +} + +/** + * cio_validate_subchannel - basic validation of subchannel + * @sch: subchannel structure to be filled out + * @schid: subchannel id * * Find out subchannel type and initialize struct subchannel. * Return codes: - * SUBCHANNEL_TYPE_IO for a normal io subchannel - * SUBCHANNEL_TYPE_CHSC for a chsc subchannel - * SUBCHANNEL_TYPE_MESSAGE for a messaging subchannel - * SUBCHANNEL_TYPE_ADM for a adm(?) subchannel + * 0 on success * -ENXIO for non-defined subchannels - * -ENODEV for subchannels with invalid device number or blacklisted devices + * -ENODEV for invalid subchannels or blacklisted devices + * -EIO for subchannels in an invalid subchannel set */ -int -cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) +int cio_validate_subchannel(struct subchannel *sch, struct subchannel_id schid) { char dbf_txt[15]; int ccode; int err; - sprintf (dbf_txt, "valsch%x", schid.sch_no); - CIO_TRACE_EVENT (4, dbf_txt); + sprintf(dbf_txt, "valsch%x", schid.sch_no); + CIO_TRACE_EVENT(4, dbf_txt); /* Nuke all fields. */ memset(sch, 0, sizeof(struct subchannel)); @@ -529,7 +569,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) } mutex_init(&sch->reg_mutex); /* Set a name for the subchannel */ - snprintf (sch->dev.bus_id, BUS_ID_SIZE, "0.%x.%04x", schid.ssid, + snprintf (dev_name(&sch->dev), BUS_ID_SIZE, "0.%x.%04x", schid.ssid, schid.sch_no); /* @@ -546,67 +586,21 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) /* Copy subchannel type from path management control word. */ sch->st = sch->schib.pmcw.st; - /* - * ... just being curious we check for non I/O subchannels - */ - if (sch->st != 0) { - CIO_MSG_EVENT(4, "Subchannel 0.%x.%04x reports " - "non-I/O subchannel type %04X\n", - sch->schid.ssid, sch->schid.sch_no, sch->st); - /* We stop here for non-io subchannels. */ - err = sch->st; - goto out; - } - - /* Initialization for io subchannels. */ - if (!css_sch_is_valid(&sch->schib)) { - err = -ENODEV; - goto out; + switch (sch->st) { + case SUBCHANNEL_TYPE_IO: + err = cio_validate_io_subchannel(sch); + break; + case SUBCHANNEL_TYPE_MSG: + err = cio_validate_msg_subchannel(sch); + break; + default: + err = 0; } - - /* Devno is valid. */ - if (is_blacklisted (sch->schid.ssid, sch->schib.pmcw.dev)) { - /* - * This device must not be known to Linux. So we simply - * say that there is no device and return ENODEV. - */ - CIO_MSG_EVENT(6, "Blacklisted device detected " - "at devno %04X, subchannel set %x\n", - sch->schib.pmcw.dev, sch->schid.ssid); - err = -ENODEV; + if (err) goto out; - } - if (cio_is_console(sch->schid)) { - sch->opm = 0xff; - sch->isc = 1; - } else { - sch->opm = chp_get_sch_opm(sch); - sch->isc = 3; - } - sch->lpm = sch->schib.pmcw.pam & sch->opm; - - CIO_MSG_EVENT(6, "Detected device %04x on subchannel 0.%x.%04X " - "- PIM = %02X, PAM = %02X, POM = %02X\n", - sch->schib.pmcw.dev, sch->schid.ssid, - sch->schid.sch_no, sch->schib.pmcw.pim, - sch->schib.pmcw.pam, sch->schib.pmcw.pom); - /* - * We now have to initially ... - * ... enable "concurrent sense" - * ... enable "multipath mode" if more than one - * CHPID is available. This is done regardless - * whether multiple paths are available for us. - */ - sch->schib.pmcw.csense = 1; /* concurrent sense */ - sch->schib.pmcw.ena = 0; - if ((sch->lpm & (sch->lpm - 1)) != 0) - sch->schib.pmcw.mp = 1; /* multipath mode */ - /* clean up possible residual cmf stuff */ - sch->schib.pmcw.mme = 0; - sch->schib.pmcw.mbfc = 0; - sch->schib.pmcw.mbi = 0; - sch->schib.mba = 0; + CIO_MSG_EVENT(4, "Subchannel 0.%x.%04x reports subchannel type %04X\n", + sch->schid.ssid, sch->schid.sch_no, sch->st); return 0; out: if (!cio_is_console(schid)) @@ -647,7 +641,7 @@ do_IRQ (struct pt_regs *regs) */ if (tpi_info->adapter_IO == 1 && tpi_info->int_type == IO_INTERRUPT_TYPE) { - do_adapter_IO(); + do_adapter_IO(tpi_info->isc); continue; } sch = (struct subchannel *)(unsigned long)tpi_info->intparm; @@ -706,9 +700,9 @@ void wait_cons_dev(void) if (!console_subchannel_in_use) return; - /* disable all but isc 1 (console device) */ + /* disable all but the console isc */ __ctl_store (save_cr6, 6, 6); - cr6 = 0x40000000; + cr6 = 1UL << (31 - CONSOLE_ISC); __ctl_load (cr6, 6, 6); do { @@ -716,7 +710,7 @@ void wait_cons_dev(void) if (!cio_tpi()) cpu_relax(); spin_lock(console_subchannel.lock); - } while (console_subchannel.schib.scsw.actl != 0); + } while (console_subchannel.schib.scsw.cmd.actl != 0); /* * restore previous isc value */ @@ -790,15 +784,15 @@ cio_probe_console(void) } /* - * enable console I/O-interrupt subclass 1 + * enable console I/O-interrupt subclass */ - ctl_set_bit(6, 30); - console_subchannel.isc = 1; - console_subchannel.schib.pmcw.isc = 1; + isc_register(CONSOLE_ISC); + console_subchannel.schib.pmcw.isc = CONSOLE_ISC; console_subchannel.schib.pmcw.intparm = (u32)(addr_t)&console_subchannel; ret = cio_modify(&console_subchannel); if (ret) { + isc_unregister(CONSOLE_ISC); console_subchannel_in_use = 0; return ERR_PTR(ret); } @@ -810,7 +804,7 @@ cio_release_console(void) { console_subchannel.schib.pmcw.intparm = 0; cio_modify(&console_subchannel); - ctl_clear_bit(6, 24); + isc_unregister(CONSOLE_ISC); console_subchannel_in_use = 0; } @@ -864,7 +858,7 @@ static void udelay_reset(unsigned long usecs) } static int -__clear_subchannel_easy(struct subchannel_id schid) +__clear_io_subchannel_easy(struct subchannel_id schid) { int retry; @@ -883,6 +877,12 @@ __clear_subchannel_easy(struct subchannel_id schid) return -EBUSY; } +static void __clear_chsc_subchannel_easy(void) +{ + /* It seems we can only wait for a bit here :/ */ + udelay_reset(100); +} + static int pgm_check_occured; static void cio_reset_pgm_check_handler(void) @@ -921,11 +921,22 @@ static int __shutdown_subchannel_easy(struct subchannel_id schid, void *data) case -ENODEV: break; default: /* -EBUSY */ - if (__clear_subchannel_easy(schid)) - break; /* give up... */ + switch (schib.pmcw.st) { + case SUBCHANNEL_TYPE_IO: + if (__clear_io_subchannel_easy(schid)) + goto out; /* give up... */ + break; + case SUBCHANNEL_TYPE_CHSC: + __clear_chsc_subchannel_easy(); + break; + default: + /* No default clear strategy */ + break; + } stsch(schid, &schib); __disable_subchannel_easy(schid, &schib); } +out: return 0; } @@ -1068,3 +1079,61 @@ int __init cio_get_iplinfo(struct cio_iplinfo *iplinfo) iplinfo->is_qdio = schib.pmcw.qf; return 0; } + +/** + * cio_tm_start_key - perform start function + * @sch: subchannel on which to perform the start function + * @tcw: transport-command word to be started + * @lpm: mask of paths to use + * @key: storage key to use for storage access + * + * Start the tcw on the given subchannel. Return zero on success, non-zero + * otherwise. + */ +int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key) +{ + int cc; + union orb *orb = &to_io_private(sch)->orb; + + memset(orb, 0, sizeof(union orb)); + orb->tm.intparm = (u32) (addr_t) sch; + orb->tm.key = key >> 4; + orb->tm.b = 1; + orb->tm.lpm = lpm ? lpm : sch->lpm; + orb->tm.tcw = (u32) (addr_t) tcw; + cc = ssch(sch->schid, orb); + switch (cc) { + case 0: + return 0; + case 1: + case 2: + return -EBUSY; + default: + return cio_start_handle_notoper(sch, lpm); + } +} + +/** + * cio_tm_intrg - perform interrogate function + * @sch - subchannel on which to perform the interrogate function + * + * If the specified subchannel is running in transport-mode, perform the + * interrogate function. Return zero on success, non-zero otherwie. + */ +int cio_tm_intrg(struct subchannel *sch) +{ + int cc; + + if (!to_io_private(sch)->orb.tm.b) + return -EINVAL; + cc = xsch(sch->schid); + switch (cc) { + case 0: + case 2: + return 0; + case 1: + return -EBUSY; + default: + return -ENODEV; + } +} diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h index 6e933aebe013..3b236d20e835 100644 --- a/drivers/s390/cio/cio.h +++ b/drivers/s390/cio/cio.h @@ -3,9 +3,12 @@ #include <linux/mutex.h> #include <linux/device.h> +#include <linux/mod_devicetable.h> #include <asm/chpid.h> +#include <asm/cio.h> +#include <asm/fcx.h> +#include <asm/schid.h> #include "chsc.h" -#include "schid.h" /* * path management control word @@ -13,7 +16,7 @@ struct pmcw { u32 intparm; /* interruption parameter */ u32 qf : 1; /* qdio facility */ - u32 res0 : 1; /* reserved zeros */ + u32 w : 1; u32 isc : 3; /* interruption sublass */ u32 res5 : 3; /* reserved zeros */ u32 ena : 1; /* enabled */ @@ -47,7 +50,7 @@ struct pmcw { */ struct schib { struct pmcw pmcw; /* path management control word */ - struct scsw scsw; /* subchannel status word */ + union scsw scsw; /* subchannel status word */ __u64 mba; /* measurement block address */ __u8 mda[4]; /* model dependent area */ } __attribute__ ((packed,aligned(4))); @@ -99,8 +102,11 @@ extern int cio_set_options (struct subchannel *, int); extern int cio_get_options (struct subchannel *); extern int cio_modify (struct subchannel *); +int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key); +int cio_tm_intrg(struct subchannel *sch); + int cio_create_sch_lock(struct subchannel *); -void do_adapter_IO(void); +void do_adapter_IO(u8 isc); void do_IRQ(struct pt_regs *); /* Use with care. */ diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c index 2808b6833b9e..77523131a05e 100644 --- a/drivers/s390/cio/cmf.c +++ b/drivers/s390/cio/cmf.c @@ -341,12 +341,12 @@ static int cmf_copy_block(struct ccw_device *cdev) if (stsch(sch->schid, &sch->schib)) return -ENODEV; - if (sch->schib.scsw.fctl & SCSW_FCTL_START_FUNC) { + if (scsw_fctl(&sch->schib.scsw) & SCSW_FCTL_START_FUNC) { /* Don't copy if a start function is in progress. */ - if ((!(sch->schib.scsw.actl & SCSW_ACTL_SUSPENDED)) && - (sch->schib.scsw.actl & + if ((!(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_SUSPENDED)) && + (scsw_actl(&sch->schib.scsw) & (SCSW_ACTL_DEVACT | SCSW_ACTL_SCHACT)) && - (!(sch->schib.scsw.stctl & SCSW_STCTL_SEC_STATUS))) + (!(scsw_stctl(&sch->schib.scsw) & SCSW_STCTL_SEC_STATUS))) return -EBUSY; } cmb_data = cdev->private->cmb; @@ -1344,8 +1344,7 @@ static int __init init_cmf(void) * to basic mode. */ if (format == CMF_AUTODETECT) { - if (!css_characteristics_avail || - !css_general_characteristics.ext_mb) { + if (!css_general_characteristics.ext_mb) { format = CMF_BASIC; } else { format = CMF_EXTENDED; diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index a76956512b2d..b3b95e4ceba3 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -2,8 +2,7 @@ * drivers/s390/cio/css.c * driver for channel subsystem * - * Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, - * IBM Corporation + * Copyright IBM Corp. 2002,2008 * Author(s): Arnd Bergmann (arndb@de.ibm.com) * Cornelia Huck (cornelia.huck@de.ibm.com) */ @@ -14,7 +13,9 @@ #include <linux/errno.h> #include <linux/list.h> #include <linux/reboot.h> +#include <asm/isc.h> +#include "../s390mach.h" #include "css.h" #include "cio.h" #include "cio_debug.h" @@ -30,8 +31,6 @@ static int max_ssid = 0; struct channel_subsystem *channel_subsystems[__MAX_CSSID + 1]; -int css_characteristics_avail = 0; - int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *data) { @@ -121,25 +120,6 @@ css_alloc_subchannel(struct subchannel_id schid) kfree(sch); return ERR_PTR(ret); } - - if (sch->st != SUBCHANNEL_TYPE_IO) { - /* For now we ignore all non-io subchannels. */ - kfree(sch); - return ERR_PTR(-EINVAL); - } - - /* - * Set intparm to subchannel address. - * This is fine even on 64bit since the subchannel is always located - * under 2G. - */ - sch->schib.pmcw.intparm = (u32)(addr_t)sch; - ret = cio_modify(sch); - if (ret) { - kfree(sch->lock); - kfree(sch); - return ERR_PTR(ret); - } return sch; } @@ -177,12 +157,17 @@ static int css_sch_device_register(struct subchannel *sch) return ret; } +/** + * css_sch_device_unregister - unregister a subchannel + * @sch: subchannel to be unregistered + */ void css_sch_device_unregister(struct subchannel *sch) { mutex_lock(&sch->reg_mutex); device_unregister(&sch->dev); mutex_unlock(&sch->reg_mutex); } +EXPORT_SYMBOL_GPL(css_sch_device_unregister); static void ssd_from_pmcw(struct chsc_ssd_info *ssd, struct pmcw *pmcw) { @@ -229,6 +214,41 @@ void css_update_ssd_info(struct subchannel *sch) } } +static ssize_t type_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct subchannel *sch = to_subchannel(dev); + + return sprintf(buf, "%01x\n", sch->st); +} + +static DEVICE_ATTR(type, 0444, type_show, NULL); + +static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct subchannel *sch = to_subchannel(dev); + + return sprintf(buf, "css:t%01X\n", sch->st); +} + +static DEVICE_ATTR(modalias, 0444, modalias_show, NULL); + +static struct attribute *subch_attrs[] = { + &dev_attr_type.attr, + &dev_attr_modalias.attr, + NULL, +}; + +static struct attribute_group subch_attr_group = { + .attrs = subch_attrs, +}; + +static struct attribute_group *default_subch_attr_groups[] = { + &subch_attr_group, + NULL, +}; + static int css_register_subchannel(struct subchannel *sch) { int ret; @@ -237,16 +257,17 @@ static int css_register_subchannel(struct subchannel *sch) sch->dev.parent = &channel_subsystems[0]->device; sch->dev.bus = &css_bus_type; sch->dev.release = &css_subchannel_release; - sch->dev.groups = subch_attr_groups; + sch->dev.groups = default_subch_attr_groups; /* * We don't want to generate uevents for I/O subchannels that don't * have a working ccw device behind them since they will be * unregistered before they can be used anyway, so we delay the add * uevent until after device recognition was successful. + * Note that we suppress the uevent for all subchannel types; + * the subchannel driver can decide itself when it wants to inform + * userspace of its existence. */ - if (!cio_is_console(sch->schid)) - /* Console is special, no need to suppress. */ - sch->dev.uevent_suppress = 1; + sch->dev.uevent_suppress = 1; css_update_ssd_info(sch); /* make it known to the system */ ret = css_sch_device_register(sch); @@ -255,10 +276,19 @@ static int css_register_subchannel(struct subchannel *sch) sch->schid.ssid, sch->schid.sch_no, ret); return ret; } + if (!sch->driver) { + /* + * No driver matched. Generate the uevent now so that + * a fitting driver module may be loaded based on the + * modalias. + */ + sch->dev.uevent_suppress = 0; + kobject_uevent(&sch->dev.kobj, KOBJ_ADD); + } return ret; } -static int css_probe_device(struct subchannel_id schid) +int css_probe_device(struct subchannel_id schid) { int ret; struct subchannel *sch; @@ -301,116 +331,12 @@ int css_sch_is_valid(struct schib *schib) { if ((schib->pmcw.st == SUBCHANNEL_TYPE_IO) && !schib->pmcw.dnv) return 0; + if ((schib->pmcw.st == SUBCHANNEL_TYPE_MSG) && !schib->pmcw.w) + return 0; return 1; } EXPORT_SYMBOL_GPL(css_sch_is_valid); -static int css_get_subchannel_status(struct subchannel *sch) -{ - struct schib schib; - - if (stsch(sch->schid, &schib)) - return CIO_GONE; - if (!css_sch_is_valid(&schib)) - return CIO_GONE; - if (sch->schib.pmcw.dnv && (schib.pmcw.dev != sch->schib.pmcw.dev)) - return CIO_REVALIDATE; - if (!sch->lpm) - return CIO_NO_PATH; - return CIO_OPER; -} - -static int css_evaluate_known_subchannel(struct subchannel *sch, int slow) -{ - int event, ret, disc; - unsigned long flags; - enum { NONE, UNREGISTER, UNREGISTER_PROBE, REPROBE } action; - - spin_lock_irqsave(sch->lock, flags); - disc = device_is_disconnected(sch); - if (disc && slow) { - /* Disconnected devices are evaluated directly only.*/ - spin_unlock_irqrestore(sch->lock, flags); - return 0; - } - /* No interrupt after machine check - kill pending timers. */ - device_kill_pending_timer(sch); - if (!disc && !slow) { - /* Non-disconnected devices are evaluated on the slow path. */ - spin_unlock_irqrestore(sch->lock, flags); - return -EAGAIN; - } - event = css_get_subchannel_status(sch); - CIO_MSG_EVENT(4, "Evaluating schid 0.%x.%04x, event %d, %s, %s path.\n", - sch->schid.ssid, sch->schid.sch_no, event, - disc ? "disconnected" : "normal", - slow ? "slow" : "fast"); - /* Analyze subchannel status. */ - action = NONE; - switch (event) { - case CIO_NO_PATH: - if (disc) { - /* Check if paths have become available. */ - action = REPROBE; - break; - } - /* fall through */ - case CIO_GONE: - /* Prevent unwanted effects when opening lock. */ - cio_disable_subchannel(sch); - device_set_disconnected(sch); - /* Ask driver what to do with device. */ - action = UNREGISTER; - if (sch->driver && sch->driver->notify) { - spin_unlock_irqrestore(sch->lock, flags); - ret = sch->driver->notify(sch, event); - spin_lock_irqsave(sch->lock, flags); - if (ret) - action = NONE; - } - break; - case CIO_REVALIDATE: - /* Device will be removed, so no notify necessary. */ - if (disc) - /* Reprobe because immediate unregister might block. */ - action = REPROBE; - else - action = UNREGISTER_PROBE; - break; - case CIO_OPER: - if (disc) - /* Get device operational again. */ - action = REPROBE; - break; - } - /* Perform action. */ - ret = 0; - switch (action) { - case UNREGISTER: - case UNREGISTER_PROBE: - /* Unregister device (will use subchannel lock). */ - spin_unlock_irqrestore(sch->lock, flags); - css_sch_device_unregister(sch); - spin_lock_irqsave(sch->lock, flags); - - /* Reset intparm to zeroes. */ - sch->schib.pmcw.intparm = 0; - cio_modify(sch); - break; - case REPROBE: - device_trigger_reprobe(sch); - break; - default: - break; - } - spin_unlock_irqrestore(sch->lock, flags); - /* Probe if necessary. */ - if (action == UNREGISTER_PROBE) - ret = css_probe_device(sch->schid); - - return ret; -} - static int css_evaluate_new_subchannel(struct subchannel_id schid, int slow) { struct schib schib; @@ -429,6 +355,21 @@ static int css_evaluate_new_subchannel(struct subchannel_id schid, int slow) return css_probe_device(schid); } +static int css_evaluate_known_subchannel(struct subchannel *sch, int slow) +{ + int ret = 0; + + if (sch->driver) { + if (sch->driver->sch_event) + ret = sch->driver->sch_event(sch, slow); + else + dev_dbg(&sch->dev, + "Got subchannel machine check but " + "no sch_event handler provided.\n"); + } + return ret; +} + static void css_evaluate_subchannel(struct subchannel_id schid, int slow) { struct subchannel *sch; @@ -596,18 +537,29 @@ EXPORT_SYMBOL_GPL(css_schedule_reprobe); /* * Called from the machine check handler for subchannel report words. */ -void css_process_crw(int rsid1, int rsid2) +static void css_process_crw(struct crw *crw0, struct crw *crw1, int overflow) { struct subchannel_id mchk_schid; - CIO_CRW_EVENT(2, "source is subchannel %04X, subsystem id %x\n", - rsid1, rsid2); + if (overflow) { + css_schedule_eval_all(); + return; + } + CIO_CRW_EVENT(2, "CRW0 reports slct=%d, oflw=%d, " + "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", + crw0->slct, crw0->oflw, crw0->chn, crw0->rsc, crw0->anc, + crw0->erc, crw0->rsid); + if (crw1) + CIO_CRW_EVENT(2, "CRW1 reports slct=%d, oflw=%d, " + "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", + crw1->slct, crw1->oflw, crw1->chn, crw1->rsc, + crw1->anc, crw1->erc, crw1->rsid); init_subchannel_id(&mchk_schid); - mchk_schid.sch_no = rsid1; - if (rsid2 != 0) - mchk_schid.ssid = (rsid2 >> 8) & 3; + mchk_schid.sch_no = crw0->rsid; + if (crw1) + mchk_schid.ssid = (crw1->rsid >> 8) & 3; - /* + /* * Since we are always presented with IPI in the CRW, we have to * use stsch() to find out if the subchannel in question has come * or gone. @@ -658,7 +610,7 @@ __init_channel_subsystem(struct subchannel_id schid, void *data) static void __init css_generate_pgid(struct channel_subsystem *css, u32 tod_high) { - if (css_characteristics_avail && css_general_characteristics.mcss) { + if (css_general_characteristics.mcss) { css->global_pgid.pgid_high.ext_cssid.version = 0x80; css->global_pgid.pgid_high.ext_cssid.cssid = css->cssid; } else { @@ -741,7 +693,7 @@ static int __init setup_css(int nr) return -ENOMEM; css->pseudo_subchannel->dev.parent = &css->device; css->pseudo_subchannel->dev.release = css_subchannel_release; - sprintf(css->pseudo_subchannel->dev.bus_id, "defunct"); + dev_set_name(&css->pseudo_subchannel->dev, "defunct"); ret = cio_create_sch_lock(css->pseudo_subchannel); if (ret) { kfree(css->pseudo_subchannel); @@ -750,7 +702,7 @@ static int __init setup_css(int nr) mutex_init(&css->mutex); css->valid = 1; css->cssid = nr; - sprintf(css->device.bus_id, "css%x", nr); + dev_set_name(&css->device, "css%x", nr); css->device.release = channel_subsystem_release; tod_high = (u32) (get_clock() >> 32); css_generate_pgid(css, tod_high); @@ -795,8 +747,6 @@ init_channel_subsystem (void) ret = chsc_determine_css_characteristics(); if (ret == -ENOMEM) goto out; /* No need to continue. */ - if (ret == 0) - css_characteristics_avail = 1; ret = chsc_alloc_sei_area(); if (ret) @@ -806,6 +756,10 @@ init_channel_subsystem (void) if (ret) goto out; + ret = s390_register_crw_handler(CRW_RSC_SCH, css_process_crw); + if (ret) + goto out; + if ((ret = bus_register(&css_bus_type))) goto out; @@ -836,8 +790,7 @@ init_channel_subsystem (void) ret = device_register(&css->device); if (ret) goto out_free_all; - if (css_characteristics_avail && - css_chsc_characteristics.secm) { + if (css_chsc_characteristics.secm) { ret = device_create_file(&css->device, &dev_attr_cm_enable); if (ret) @@ -852,7 +805,8 @@ init_channel_subsystem (void) goto out_pseudo; css_init_done = 1; - ctl_set_bit(6, 28); + /* Enable default isc for I/O subchannels. */ + isc_register(IO_SCH_ISC); for_each_subchannel(__init_channel_subsystem, NULL); return 0; @@ -875,7 +829,7 @@ out_unregister: i--; css = channel_subsystems[i]; device_unregister(&css->pseudo_subchannel->dev); - if (css_characteristics_avail && css_chsc_characteristics.secm) + if (css_chsc_characteristics.secm) device_remove_file(&css->device, &dev_attr_cm_enable); device_unregister(&css->device); @@ -883,6 +837,7 @@ out_unregister: out_bus: bus_unregister(&css_bus_type); out: + s390_unregister_crw_handler(CRW_RSC_CSS); chsc_free_sei_area(); kfree(slow_subchannel_set); printk(KERN_WARNING"cio: failed to initialize css driver (%d)!\n", @@ -895,19 +850,16 @@ int sch_is_pseudo_sch(struct subchannel *sch) return sch == to_css(sch->dev.parent)->pseudo_subchannel; } -/* - * find a driver for a subchannel. They identify by the subchannel - * type with the exception that the console subchannel driver has its own - * subchannel type although the device is an i/o subchannel - */ -static int -css_bus_match (struct device *dev, struct device_driver *drv) +static int css_bus_match(struct device *dev, struct device_driver *drv) { struct subchannel *sch = to_subchannel(dev); struct css_driver *driver = to_cssdriver(drv); + struct css_device_id *id; - if (sch->st == driver->subchannel_type) - return 1; + for (id = driver->subchannel_type; id->match_flags; id++) { + if (sch->st == id->type) + return 1; + } return 0; } @@ -945,12 +897,25 @@ static void css_shutdown(struct device *dev) sch->driver->shutdown(sch); } +static int css_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct subchannel *sch = to_subchannel(dev); + int ret; + + ret = add_uevent_var(env, "ST=%01X", sch->st); + if (ret) + return ret; + ret = add_uevent_var(env, "MODALIAS=css:t%01X", sch->st); + return ret; +} + struct bus_type css_bus_type = { .name = "css", .match = css_bus_match, .probe = css_probe, .remove = css_remove, .shutdown = css_shutdown, + .uevent = css_uevent, }; /** @@ -985,4 +950,3 @@ subsys_initcall(init_channel_subsystem); MODULE_LICENSE("GPL"); EXPORT_SYMBOL(css_bus_type); -EXPORT_SYMBOL_GPL(css_characteristics_avail); diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index e1913518f354..57ebf120f825 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -9,8 +9,7 @@ #include <asm/cio.h> #include <asm/chpid.h> - -#include "schid.h" +#include <asm/schid.h> /* * path grouping stuff @@ -58,20 +57,28 @@ struct pgid { __u32 tod_high; /* high word TOD clock */ } __attribute__ ((packed)); -/* - * A css driver handles all subchannels of one type. - * Currently, we only care about I/O subchannels (type 0), these - * have a ccw_device connected to them. - */ struct subchannel; +struct chp_link; +/** + * struct css_driver - device driver for subchannels + * @owner: owning module + * @subchannel_type: subchannel type supported by this driver + * @drv: embedded device driver structure + * @irq: called on interrupts + * @chp_event: called for events affecting a channel path + * @sch_event: called for events affecting the subchannel + * @probe: function called on probe + * @remove: function called on remove + * @shutdown: called at device shutdown + * @name: name of the device driver + */ struct css_driver { struct module *owner; - unsigned int subchannel_type; + struct css_device_id *subchannel_type; struct device_driver drv; void (*irq)(struct subchannel *); - int (*notify)(struct subchannel *, int); - void (*verify)(struct subchannel *); - void (*termination)(struct subchannel *); + int (*chp_event)(struct subchannel *, struct chp_link *, int); + int (*sch_event)(struct subchannel *, int); int (*probe)(struct subchannel *); int (*remove)(struct subchannel *); void (*shutdown)(struct subchannel *); @@ -89,13 +96,13 @@ extern int css_driver_register(struct css_driver *); extern void css_driver_unregister(struct css_driver *); extern void css_sch_device_unregister(struct subchannel *); -extern struct subchannel * get_subchannel_by_schid(struct subchannel_id); +extern int css_probe_device(struct subchannel_id); +extern struct subchannel *get_subchannel_by_schid(struct subchannel_id); extern int css_init_done; int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *), int (*fn_unknown)(struct subchannel_id, void *), void *data); extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *); -extern void css_process_crw(int, int); extern void css_reiterate_subchannels(void); void css_update_ssd_info(struct subchannel *sch); @@ -121,20 +128,6 @@ struct channel_subsystem { extern struct bus_type css_bus_type; extern struct channel_subsystem *channel_subsystems[]; -/* Some helper functions for disconnected state. */ -int device_is_disconnected(struct subchannel *); -void device_set_disconnected(struct subchannel *); -void device_trigger_reprobe(struct subchannel *); - -/* Helper functions for vary on/off. */ -int device_is_online(struct subchannel *); -void device_kill_io(struct subchannel *); -void device_set_intretry(struct subchannel *sch); -int device_trigger_verify(struct subchannel *sch); - -/* Machine check helper function. */ -void device_kill_pending_timer(struct subchannel *); - /* Helper functions to build lists for the slow path. */ void css_schedule_eval(struct subchannel_id schid); void css_schedule_eval_all(void); @@ -145,6 +138,4 @@ int css_sch_is_valid(struct schib *); extern struct workqueue_struct *slow_path_wq; void css_wait_for_slow_path(void); - -extern struct attribute_group *subch_attr_groups[]; #endif diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index e22813db74a2..3743c32ff7dd 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -2,8 +2,7 @@ * drivers/s390/cio/device.c * bus driver for ccw devices * - * Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, - * IBM Corporation + * Copyright IBM Corp. 2002,2008 * Author(s): Arnd Bergmann (arndb@de.ibm.com) * Cornelia Huck (cornelia.huck@de.ibm.com) * Martin Schwidefsky (schwidefsky@de.ibm.com) @@ -23,7 +22,9 @@ #include <asm/cio.h> #include <asm/param.h> /* HZ */ #include <asm/cmb.h> +#include <asm/isc.h> +#include "chp.h" #include "cio.h" #include "cio_debug.h" #include "css.h" @@ -125,19 +126,24 @@ struct bus_type ccw_bus_type; static void io_subchannel_irq(struct subchannel *); static int io_subchannel_probe(struct subchannel *); static int io_subchannel_remove(struct subchannel *); -static int io_subchannel_notify(struct subchannel *, int); -static void io_subchannel_verify(struct subchannel *); -static void io_subchannel_ioterm(struct subchannel *); static void io_subchannel_shutdown(struct subchannel *); +static int io_subchannel_sch_event(struct subchannel *, int); +static int io_subchannel_chp_event(struct subchannel *, struct chp_link *, + int); + +static struct css_device_id io_subchannel_ids[] = { + { .match_flags = 0x1, .type = SUBCHANNEL_TYPE_IO, }, + { /* end of list */ }, +}; +MODULE_DEVICE_TABLE(css, io_subchannel_ids); static struct css_driver io_subchannel_driver = { .owner = THIS_MODULE, - .subchannel_type = SUBCHANNEL_TYPE_IO, + .subchannel_type = io_subchannel_ids, .name = "io_subchannel", .irq = io_subchannel_irq, - .notify = io_subchannel_notify, - .verify = io_subchannel_verify, - .termination = io_subchannel_ioterm, + .sch_event = io_subchannel_sch_event, + .chp_event = io_subchannel_chp_event, .probe = io_subchannel_probe, .remove = io_subchannel_remove, .shutdown = io_subchannel_shutdown, @@ -584,19 +590,14 @@ static DEVICE_ATTR(modalias, 0444, modalias_show, NULL); static DEVICE_ATTR(online, 0644, online_show, online_store); static DEVICE_ATTR(availability, 0444, available_show, NULL); -static struct attribute * subch_attrs[] = { +static struct attribute *io_subchannel_attrs[] = { &dev_attr_chpids.attr, &dev_attr_pimpampom.attr, NULL, }; -static struct attribute_group subch_attr_group = { - .attrs = subch_attrs, -}; - -struct attribute_group *subch_attr_groups[] = { - &subch_attr_group, - NULL, +static struct attribute_group io_subchannel_attr_group = { + .attrs = io_subchannel_attrs, }; static struct attribute * ccwdev_attrs[] = { @@ -790,7 +791,7 @@ static void sch_attach_device(struct subchannel *sch, sch_set_cdev(sch, cdev); cdev->private->schid = sch->schid; cdev->ccwlock = sch->lock; - device_trigger_reprobe(sch); + ccw_device_trigger_reprobe(cdev); spin_unlock_irq(sch->lock); } @@ -1037,7 +1038,6 @@ io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch) struct ccw_device_private *priv; sch_set_cdev(sch, cdev); - sch->driver = &io_subchannel_driver; cdev->ccwlock = sch->lock; /* Init private data. */ @@ -1117,13 +1117,38 @@ static void io_subchannel_irq(struct subchannel *sch) cdev = sch_get_cdev(sch); CIO_TRACE_EVENT(3, "IRQ"); - CIO_TRACE_EVENT(3, sch->dev.bus_id); + CIO_TRACE_EVENT(3, dev_name(&sch->dev)); if (cdev) dev_fsm_event(cdev, DEV_EVENT_INTERRUPT); } -static int -io_subchannel_probe (struct subchannel *sch) +static void io_subchannel_init_fields(struct subchannel *sch) +{ + if (cio_is_console(sch->schid)) + sch->opm = 0xff; + else + sch->opm = chp_get_sch_opm(sch); + sch->lpm = sch->schib.pmcw.pam & sch->opm; + sch->isc = cio_is_console(sch->schid) ? CONSOLE_ISC : IO_SCH_ISC; + + CIO_MSG_EVENT(6, "Detected device %04x on subchannel 0.%x.%04X" + " - PIM = %02X, PAM = %02X, POM = %02X\n", + sch->schib.pmcw.dev, sch->schid.ssid, + sch->schid.sch_no, sch->schib.pmcw.pim, + sch->schib.pmcw.pam, sch->schib.pmcw.pom); + /* Initially set up some fields in the pmcw. */ + sch->schib.pmcw.ena = 0; + sch->schib.pmcw.csense = 1; /* concurrent sense */ + if ((sch->lpm & (sch->lpm - 1)) != 0) + sch->schib.pmcw.mp = 1; /* multipath mode */ + /* clean up possible residual cmf stuff */ + sch->schib.pmcw.mme = 0; + sch->schib.pmcw.mbfc = 0; + sch->schib.pmcw.mbi = 0; + sch->schib.mba = 0; +} + +static int io_subchannel_probe(struct subchannel *sch) { struct ccw_device *cdev; int rc; @@ -1132,11 +1157,21 @@ io_subchannel_probe (struct subchannel *sch) cdev = sch_get_cdev(sch); if (cdev) { + rc = sysfs_create_group(&sch->dev.kobj, + &io_subchannel_attr_group); + if (rc) + CIO_MSG_EVENT(0, "Failed to create io subchannel " + "attributes for subchannel " + "0.%x.%04x (rc=%d)\n", + sch->schid.ssid, sch->schid.sch_no, rc); /* * This subchannel already has an associated ccw_device. - * Register it and exit. This happens for all early - * device, e.g. the console. + * Throw the delayed uevent for the subchannel, register + * the ccw_device and exit. This happens for all early + * devices, e.g. the console. */ + sch->dev.uevent_suppress = 0; + kobject_uevent(&sch->dev.kobj, KOBJ_ADD); cdev->dev.groups = ccwdev_attr_groups; device_initialize(&cdev->dev); ccw_device_register(cdev); @@ -1152,17 +1187,24 @@ io_subchannel_probe (struct subchannel *sch) get_device(&cdev->dev); return 0; } + io_subchannel_init_fields(sch); /* * First check if a fitting device may be found amongst the * disconnected devices or in the orphanage. */ dev_id.devno = sch->schib.pmcw.dev; dev_id.ssid = sch->schid.ssid; + rc = sysfs_create_group(&sch->dev.kobj, + &io_subchannel_attr_group); + if (rc) + return rc; /* Allocate I/O subchannel private data. */ sch->private = kzalloc(sizeof(struct io_subchannel_private), GFP_KERNEL | GFP_DMA); - if (!sch->private) - return -ENOMEM; + if (!sch->private) { + rc = -ENOMEM; + goto out_err; + } cdev = get_disc_ccwdev_by_dev_id(&dev_id, NULL); if (!cdev) cdev = get_orphaned_ccwdev_by_dev_id(to_css(sch->dev.parent), @@ -1181,8 +1223,8 @@ io_subchannel_probe (struct subchannel *sch) } cdev = io_subchannel_create_ccwdev(sch); if (IS_ERR(cdev)) { - kfree(sch->private); - return PTR_ERR(cdev); + rc = PTR_ERR(cdev); + goto out_err; } rc = io_subchannel_recog(cdev, sch); if (rc) { @@ -1191,9 +1233,12 @@ io_subchannel_probe (struct subchannel *sch) spin_unlock_irqrestore(sch->lock, flags); if (cdev->dev.release) cdev->dev.release(&cdev->dev); - kfree(sch->private); + goto out_err; } - + return 0; +out_err: + kfree(sch->private); + sysfs_remove_group(&sch->dev.kobj, &io_subchannel_attr_group); return rc; } @@ -1214,6 +1259,7 @@ io_subchannel_remove (struct subchannel *sch) ccw_device_unregister(cdev); put_device(&cdev->dev); kfree(sch->private); + sysfs_remove_group(&sch->dev.kobj, &io_subchannel_attr_group); return 0; } @@ -1224,11 +1270,7 @@ static int io_subchannel_notify(struct subchannel *sch, int event) cdev = sch_get_cdev(sch); if (!cdev) return 0; - if (!cdev->drv) - return 0; - if (!cdev->online) - return 0; - return cdev->drv->notify ? cdev->drv->notify(cdev, event) : 0; + return ccw_device_notify(cdev, event); } static void io_subchannel_verify(struct subchannel *sch) @@ -1240,22 +1282,96 @@ static void io_subchannel_verify(struct subchannel *sch) dev_fsm_event(cdev, DEV_EVENT_VERIFY); } -static void io_subchannel_ioterm(struct subchannel *sch) +static int check_for_io_on_path(struct subchannel *sch, int mask) { - struct ccw_device *cdev; + int cc; - cdev = sch_get_cdev(sch); - if (!cdev) - return; - /* Internal I/O will be retried by the interrupt handler. */ - if (cdev->private->flags.intretry) + cc = stsch(sch->schid, &sch->schib); + if (cc) + return 0; + if (scsw_actl(&sch->schib.scsw) && sch->schib.pmcw.lpum == mask) + return 1; + return 0; +} + +static void terminate_internal_io(struct subchannel *sch, + struct ccw_device *cdev) +{ + if (cio_clear(sch)) { + /* Recheck device in case clear failed. */ + sch->lpm = 0; + if (cdev->online) + dev_fsm_event(cdev, DEV_EVENT_VERIFY); + else + css_schedule_eval(sch->schid); return; + } cdev->private->state = DEV_STATE_CLEAR_VERIFY; + /* Request retry of internal operation. */ + cdev->private->flags.intretry = 1; + /* Call handler. */ if (cdev->handler) cdev->handler(cdev, cdev->private->intparm, ERR_PTR(-EIO)); } +static void io_subchannel_terminate_path(struct subchannel *sch, u8 mask) +{ + struct ccw_device *cdev; + + cdev = sch_get_cdev(sch); + if (!cdev) + return; + if (check_for_io_on_path(sch, mask)) { + if (cdev->private->state == DEV_STATE_ONLINE) + ccw_device_kill_io(cdev); + else { + terminate_internal_io(sch, cdev); + /* Re-start path verification. */ + dev_fsm_event(cdev, DEV_EVENT_VERIFY); + } + } else + /* trigger path verification. */ + dev_fsm_event(cdev, DEV_EVENT_VERIFY); + +} + +static int io_subchannel_chp_event(struct subchannel *sch, + struct chp_link *link, int event) +{ + int mask; + + mask = chp_ssd_get_mask(&sch->ssd_info, link); + if (!mask) + return 0; + switch (event) { + case CHP_VARY_OFF: + sch->opm &= ~mask; + sch->lpm &= ~mask; + io_subchannel_terminate_path(sch, mask); + break; + case CHP_VARY_ON: + sch->opm |= mask; + sch->lpm |= mask; + io_subchannel_verify(sch); + break; + case CHP_OFFLINE: + if (stsch(sch->schid, &sch->schib)) + return -ENXIO; + if (!css_sch_is_valid(&sch->schib)) + return -ENODEV; + io_subchannel_terminate_path(sch, mask); + break; + case CHP_ONLINE: + if (stsch(sch->schid, &sch->schib)) + return -ENXIO; + sch->lpm |= mask & sch->opm; + io_subchannel_verify(sch); + break; + } + return 0; +} + static void io_subchannel_shutdown(struct subchannel *sch) { @@ -1285,6 +1401,195 @@ io_subchannel_shutdown(struct subchannel *sch) cio_disable_subchannel(sch); } +static int io_subchannel_get_status(struct subchannel *sch) +{ + struct schib schib; + + if (stsch(sch->schid, &schib) || !schib.pmcw.dnv) + return CIO_GONE; + if (sch->schib.pmcw.dnv && (schib.pmcw.dev != sch->schib.pmcw.dev)) + return CIO_REVALIDATE; + if (!sch->lpm) + return CIO_NO_PATH; + return CIO_OPER; +} + +static int device_is_disconnected(struct ccw_device *cdev) +{ + if (!cdev) + return 0; + return (cdev->private->state == DEV_STATE_DISCONNECTED || + cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID); +} + +static int recovery_check(struct device *dev, void *data) +{ + struct ccw_device *cdev = to_ccwdev(dev); + int *redo = data; + + spin_lock_irq(cdev->ccwlock); + switch (cdev->private->state) { + case DEV_STATE_DISCONNECTED: + CIO_MSG_EVENT(3, "recovery: trigger 0.%x.%04x\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); + dev_fsm_event(cdev, DEV_EVENT_VERIFY); + *redo = 1; + break; + case DEV_STATE_DISCONNECTED_SENSE_ID: + *redo = 1; + break; + } + spin_unlock_irq(cdev->ccwlock); + + return 0; +} + +static void recovery_work_func(struct work_struct *unused) +{ + int redo = 0; + + bus_for_each_dev(&ccw_bus_type, NULL, &redo, recovery_check); + if (redo) { + spin_lock_irq(&recovery_lock); + if (!timer_pending(&recovery_timer)) { + if (recovery_phase < ARRAY_SIZE(recovery_delay) - 1) + recovery_phase++; + mod_timer(&recovery_timer, jiffies + + recovery_delay[recovery_phase] * HZ); + } + spin_unlock_irq(&recovery_lock); + } else + CIO_MSG_EVENT(4, "recovery: end\n"); +} + +static DECLARE_WORK(recovery_work, recovery_work_func); + +static void recovery_func(unsigned long data) +{ + /* + * We can't do our recovery in softirq context and it's not + * performance critical, so we schedule it. + */ + schedule_work(&recovery_work); +} + +static void ccw_device_schedule_recovery(void) +{ + unsigned long flags; + + CIO_MSG_EVENT(4, "recovery: schedule\n"); + spin_lock_irqsave(&recovery_lock, flags); + if (!timer_pending(&recovery_timer) || (recovery_phase != 0)) { + recovery_phase = 0; + mod_timer(&recovery_timer, jiffies + recovery_delay[0] * HZ); + } + spin_unlock_irqrestore(&recovery_lock, flags); +} + +static void device_set_disconnected(struct ccw_device *cdev) +{ + if (!cdev) + return; + ccw_device_set_timeout(cdev, 0); + cdev->private->flags.fake_irb = 0; + cdev->private->state = DEV_STATE_DISCONNECTED; + if (cdev->online) + ccw_device_schedule_recovery(); +} + +static int io_subchannel_sch_event(struct subchannel *sch, int slow) +{ + int event, ret, disc; + unsigned long flags; + enum { NONE, UNREGISTER, UNREGISTER_PROBE, REPROBE } action; + struct ccw_device *cdev; + + spin_lock_irqsave(sch->lock, flags); + cdev = sch_get_cdev(sch); + disc = device_is_disconnected(cdev); + if (disc && slow) { + /* Disconnected devices are evaluated directly only.*/ + spin_unlock_irqrestore(sch->lock, flags); + return 0; + } + /* No interrupt after machine check - kill pending timers. */ + if (cdev) + ccw_device_set_timeout(cdev, 0); + if (!disc && !slow) { + /* Non-disconnected devices are evaluated on the slow path. */ + spin_unlock_irqrestore(sch->lock, flags); + return -EAGAIN; + } + event = io_subchannel_get_status(sch); + CIO_MSG_EVENT(4, "Evaluating schid 0.%x.%04x, event %d, %s, %s path.\n", + sch->schid.ssid, sch->schid.sch_no, event, + disc ? "disconnected" : "normal", + slow ? "slow" : "fast"); + /* Analyze subchannel status. */ + action = NONE; + switch (event) { + case CIO_NO_PATH: + if (disc) { + /* Check if paths have become available. */ + action = REPROBE; + break; + } + /* fall through */ + case CIO_GONE: + /* Prevent unwanted effects when opening lock. */ + cio_disable_subchannel(sch); + device_set_disconnected(cdev); + /* Ask driver what to do with device. */ + action = UNREGISTER; + spin_unlock_irqrestore(sch->lock, flags); + ret = io_subchannel_notify(sch, event); + spin_lock_irqsave(sch->lock, flags); + if (ret) + action = NONE; + break; + case CIO_REVALIDATE: + /* Device will be removed, so no notify necessary. */ + if (disc) + /* Reprobe because immediate unregister might block. */ + action = REPROBE; + else + action = UNREGISTER_PROBE; + break; + case CIO_OPER: + if (disc) + /* Get device operational again. */ + action = REPROBE; + break; + } + /* Perform action. */ + ret = 0; + switch (action) { + case UNREGISTER: + case UNREGISTER_PROBE: + /* Unregister device (will use subchannel lock). */ + spin_unlock_irqrestore(sch->lock, flags); + css_sch_device_unregister(sch); + spin_lock_irqsave(sch->lock, flags); + + /* Reset intparm to zeroes. */ + sch->schib.pmcw.intparm = 0; + cio_modify(sch); + break; + case REPROBE: + ccw_device_trigger_reprobe(cdev); + break; + default: + break; + } + spin_unlock_irqrestore(sch->lock, flags); + /* Probe if necessary. */ + if (action == UNREGISTER_PROBE) + ret = css_probe_device(sch->schid); + + return ret; +} + #ifdef CONFIG_CCW_CONSOLE static struct ccw_device console_cdev; static struct ccw_device_private console_private; @@ -1297,14 +1602,16 @@ spinlock_t * cio_get_console_lock(void) return &ccw_console_lock; } -static int -ccw_device_console_enable (struct ccw_device *cdev, struct subchannel *sch) +static int ccw_device_console_enable(struct ccw_device *cdev, + struct subchannel *sch) { int rc; /* Attach subchannel private data. */ sch->private = cio_get_console_priv(); memset(sch->private, 0, sizeof(struct io_subchannel_private)); + io_subchannel_init_fields(sch); + sch->driver = &io_subchannel_driver; /* Initialize the ccw_device structure. */ cdev->dev.parent= &sch->dev; rc = io_subchannel_recog(cdev, sch); @@ -1367,7 +1674,7 @@ __ccwdev_check_busid(struct device *dev, void *id) bus_id = id; - return (strncmp(bus_id, dev->bus_id, BUS_ID_SIZE) == 0); + return (strncmp(bus_id, dev_name(dev), BUS_ID_SIZE) == 0); } @@ -1515,71 +1822,6 @@ ccw_device_get_subchannel_id(struct ccw_device *cdev) return sch->schid; } -static int recovery_check(struct device *dev, void *data) -{ - struct ccw_device *cdev = to_ccwdev(dev); - int *redo = data; - - spin_lock_irq(cdev->ccwlock); - switch (cdev->private->state) { - case DEV_STATE_DISCONNECTED: - CIO_MSG_EVENT(4, "recovery: trigger 0.%x.%04x\n", - cdev->private->dev_id.ssid, - cdev->private->dev_id.devno); - dev_fsm_event(cdev, DEV_EVENT_VERIFY); - *redo = 1; - break; - case DEV_STATE_DISCONNECTED_SENSE_ID: - *redo = 1; - break; - } - spin_unlock_irq(cdev->ccwlock); - - return 0; -} - -static void recovery_work_func(struct work_struct *unused) -{ - int redo = 0; - - bus_for_each_dev(&ccw_bus_type, NULL, &redo, recovery_check); - if (redo) { - spin_lock_irq(&recovery_lock); - if (!timer_pending(&recovery_timer)) { - if (recovery_phase < ARRAY_SIZE(recovery_delay) - 1) - recovery_phase++; - mod_timer(&recovery_timer, jiffies + - recovery_delay[recovery_phase] * HZ); - } - spin_unlock_irq(&recovery_lock); - } else - CIO_MSG_EVENT(4, "recovery: end\n"); -} - -static DECLARE_WORK(recovery_work, recovery_work_func); - -static void recovery_func(unsigned long data) -{ - /* - * We can't do our recovery in softirq context and it's not - * performance critical, so we schedule it. - */ - schedule_work(&recovery_work); -} - -void ccw_device_schedule_recovery(void) -{ - unsigned long flags; - - CIO_MSG_EVENT(4, "recovery: schedule\n"); - spin_lock_irqsave(&recovery_lock, flags); - if (!timer_pending(&recovery_timer) || (recovery_phase != 0)) { - recovery_phase = 0; - mod_timer(&recovery_timer, jiffies + recovery_delay[0] * HZ); - } - spin_unlock_irqrestore(&recovery_lock, flags); -} - MODULE_LICENSE("GPL"); EXPORT_SYMBOL(ccw_device_set_online); EXPORT_SYMBOL(ccw_device_set_offline); diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h index cb08092be39f..9800a8335a3f 100644 --- a/drivers/s390/cio/device.h +++ b/drivers/s390/cio/device.h @@ -88,8 +88,6 @@ int ccw_device_recognition(struct ccw_device *); int ccw_device_online(struct ccw_device *); int ccw_device_offline(struct ccw_device *); -void ccw_device_schedule_recovery(void); - /* Function prototypes for device status and basic sense stuff. */ void ccw_device_accumulate_irb(struct ccw_device *, struct irb *); void ccw_device_accumulate_basic_sense(struct ccw_device *, struct irb *); @@ -118,6 +116,11 @@ int ccw_device_call_handler(struct ccw_device *); int ccw_device_stlck(struct ccw_device *); +/* Helper function for machine check handling. */ +void ccw_device_trigger_reprobe(struct ccw_device *); +void ccw_device_kill_io(struct ccw_device *); +int ccw_device_notify(struct ccw_device *, int); + /* qdio needs this. */ void ccw_device_set_timeout(struct ccw_device *, int); extern struct subchannel_id ccw_device_get_subchannel_id(struct ccw_device *); diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index e268d5a77c12..30d27f5157df 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -2,8 +2,7 @@ * drivers/s390/cio/device_fsm.c * finite state machine for device handling * - * Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, - * IBM Corporation + * Copyright IBM Corp. 2002,2008 * Author(s): Cornelia Huck (cornelia.huck@de.ibm.com) * Martin Schwidefsky (schwidefsky@de.ibm.com) */ @@ -27,65 +26,6 @@ static int timeout_log_enabled; -int -device_is_online(struct subchannel *sch) -{ - struct ccw_device *cdev; - - cdev = sch_get_cdev(sch); - if (!cdev) - return 0; - return (cdev->private->state == DEV_STATE_ONLINE); -} - -int -device_is_disconnected(struct subchannel *sch) -{ - struct ccw_device *cdev; - - cdev = sch_get_cdev(sch); - if (!cdev) - return 0; - return (cdev->private->state == DEV_STATE_DISCONNECTED || - cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID); -} - -void -device_set_disconnected(struct subchannel *sch) -{ - struct ccw_device *cdev; - - cdev = sch_get_cdev(sch); - if (!cdev) - return; - ccw_device_set_timeout(cdev, 0); - cdev->private->flags.fake_irb = 0; - cdev->private->state = DEV_STATE_DISCONNECTED; - if (cdev->online) - ccw_device_schedule_recovery(); -} - -void device_set_intretry(struct subchannel *sch) -{ - struct ccw_device *cdev; - - cdev = sch_get_cdev(sch); - if (!cdev) - return; - cdev->private->flags.intretry = 1; -} - -int device_trigger_verify(struct subchannel *sch) -{ - struct ccw_device *cdev; - - cdev = sch_get_cdev(sch); - if (!cdev || !cdev->online) - return -EINVAL; - dev_fsm_event(cdev, DEV_EVENT_VERIFY); - return 0; -} - static int __init ccw_timeout_log_setup(char *unused) { timeout_log_enabled = 1; @@ -99,31 +39,45 @@ static void ccw_timeout_log(struct ccw_device *cdev) struct schib schib; struct subchannel *sch; struct io_subchannel_private *private; + union orb *orb; int cc; sch = to_subchannel(cdev->dev.parent); private = to_io_private(sch); + orb = &private->orb; cc = stsch(sch->schid, &schib); printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, " "device information:\n", get_clock()); printk(KERN_WARNING "cio: orb:\n"); print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1, - &private->orb, sizeof(private->orb), 0); - printk(KERN_WARNING "cio: ccw device bus id: %s\n", cdev->dev.bus_id); - printk(KERN_WARNING "cio: subchannel bus id: %s\n", sch->dev.bus_id); + orb, sizeof(*orb), 0); + printk(KERN_WARNING "cio: ccw device bus id: %s\n", + dev_name(&cdev->dev)); + printk(KERN_WARNING "cio: subchannel bus id: %s\n", + dev_name(&sch->dev)); printk(KERN_WARNING "cio: subchannel lpm: %02x, opm: %02x, " "vpm: %02x\n", sch->lpm, sch->opm, sch->vpm); - if ((void *)(addr_t)private->orb.cpa == &private->sense_ccw || - (void *)(addr_t)private->orb.cpa == cdev->private->iccws) - printk(KERN_WARNING "cio: last channel program (intern):\n"); - else - printk(KERN_WARNING "cio: last channel program:\n"); - - print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1, - (void *)(addr_t)private->orb.cpa, - sizeof(struct ccw1), 0); + if (orb->tm.b) { + printk(KERN_WARNING "cio: orb indicates transport mode\n"); + printk(KERN_WARNING "cio: last tcw:\n"); + print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1, + (void *)(addr_t)orb->tm.tcw, + sizeof(struct tcw), 0); + } else { + printk(KERN_WARNING "cio: orb indicates command mode\n"); + if ((void *)(addr_t)orb->cmd.cpa == &private->sense_ccw || + (void *)(addr_t)orb->cmd.cpa == cdev->private->iccws) + printk(KERN_WARNING "cio: last channel program " + "(intern):\n"); + else + printk(KERN_WARNING "cio: last channel program:\n"); + + print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1, + (void *)(addr_t)orb->cmd.cpa, + sizeof(struct ccw1), 0); + } printk(KERN_WARNING "cio: ccw device state: %d\n", cdev->private->state); printk(KERN_WARNING "cio: store subchannel returned: cc=%d\n", cc); @@ -171,18 +125,6 @@ ccw_device_set_timeout(struct ccw_device *cdev, int expires) add_timer(&cdev->private->timer); } -/* Kill any pending timers after machine check. */ -void -device_kill_pending_timer(struct subchannel *sch) -{ - struct ccw_device *cdev; - - cdev = sch_get_cdev(sch); - if (!cdev) - return; - ccw_device_set_timeout(cdev, 0); -} - /* * Cancel running i/o. This is called repeatedly since halt/clear are * asynchronous operations. We do one try with cio_cancel, two tries @@ -205,15 +147,18 @@ ccw_device_cancel_halt_clear(struct ccw_device *cdev) /* Not operational -> done. */ return 0; /* Stage 1: cancel io. */ - if (!(sch->schib.scsw.actl & SCSW_ACTL_HALT_PEND) && - !(sch->schib.scsw.actl & SCSW_ACTL_CLEAR_PEND)) { - ret = cio_cancel(sch); - if (ret != -EINVAL) - return ret; - /* cancel io unsuccessful. From now on it is asynchronous. */ + if (!(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_HALT_PEND) && + !(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_CLEAR_PEND)) { + if (!scsw_is_tm(&sch->schib.scsw)) { + ret = cio_cancel(sch); + if (ret != -EINVAL) + return ret; + } + /* cancel io unsuccessful or not applicable (transport mode). + * Continue with asynchronous instructions. */ cdev->private->iretry = 3; /* 3 halt retries. */ } - if (!(sch->schib.scsw.actl & SCSW_ACTL_CLEAR_PEND)) { + if (!(scsw_actl(&sch->schib.scsw) & SCSW_ACTL_CLEAR_PEND)) { /* Stage 2: halt io. */ if (cdev->private->iretry) { cdev->private->iretry--; @@ -388,34 +333,30 @@ ccw_device_sense_id_done(struct ccw_device *cdev, int err) } } +int ccw_device_notify(struct ccw_device *cdev, int event) +{ + if (!cdev->drv) + return 0; + if (!cdev->online) + return 0; + return cdev->drv->notify ? cdev->drv->notify(cdev, event) : 0; +} + static void ccw_device_oper_notify(struct work_struct *work) { struct ccw_device_private *priv; struct ccw_device *cdev; - struct subchannel *sch; int ret; - unsigned long flags; priv = container_of(work, struct ccw_device_private, kick_work); cdev = priv->cdev; - spin_lock_irqsave(cdev->ccwlock, flags); - sch = to_subchannel(cdev->dev.parent); - if (sch->driver && sch->driver->notify) { - spin_unlock_irqrestore(cdev->ccwlock, flags); - ret = sch->driver->notify(sch, CIO_OPER); - spin_lock_irqsave(cdev->ccwlock, flags); - } else - ret = 0; + ret = ccw_device_notify(cdev, CIO_OPER); if (ret) { /* Reenable channel measurements, if needed. */ - spin_unlock_irqrestore(cdev->ccwlock, flags); cmf_reenable(cdev); - spin_lock_irqsave(cdev->ccwlock, flags); wake_up(&cdev->private->wait_q); - } - spin_unlock_irqrestore(cdev->ccwlock, flags); - if (!ret) + } else /* Driver doesn't want device back. */ ccw_device_do_unreg_rereg(work); } @@ -621,10 +562,11 @@ ccw_device_verify_done(struct ccw_device *cdev, int err) /* Deliver fake irb to device driver, if needed. */ if (cdev->private->flags.fake_irb) { memset(&cdev->private->irb, 0, sizeof(struct irb)); - cdev->private->irb.scsw.cc = 1; - cdev->private->irb.scsw.fctl = SCSW_FCTL_START_FUNC; - cdev->private->irb.scsw.actl = SCSW_ACTL_START_PEND; - cdev->private->irb.scsw.stctl = SCSW_STCTL_STATUS_PEND; + cdev->private->irb.scsw.cmd.cc = 1; + cdev->private->irb.scsw.cmd.fctl = SCSW_FCTL_START_FUNC; + cdev->private->irb.scsw.cmd.actl = SCSW_ACTL_START_PEND; + cdev->private->irb.scsw.cmd.stctl = + SCSW_STCTL_STATUS_PEND; cdev->private->flags.fake_irb = 0; if (cdev->handler) cdev->handler(cdev, cdev->private->intparm, @@ -718,13 +660,10 @@ ccw_device_offline(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); if (stsch(sch->schid, &sch->schib) || !sch->schib.pmcw.dnv) return -ENODEV; - if (cdev->private->state != DEV_STATE_ONLINE) { - if (sch->schib.scsw.actl != 0) - return -EBUSY; - return -EINVAL; - } - if (sch->schib.scsw.actl != 0) + if (scsw_actl(&sch->schib.scsw) != 0) return -EBUSY; + if (cdev->private->state != DEV_STATE_ONLINE) + return -EINVAL; /* Are we doing path grouping? */ if (!cdev->private->options.pgroup) { /* No, set state offline immediately. */ @@ -799,9 +738,9 @@ ccw_device_online_verify(struct ccw_device *cdev, enum dev_event dev_event) */ stsch(sch->schid, &sch->schib); - if (sch->schib.scsw.actl != 0 || - (sch->schib.scsw.stctl & SCSW_STCTL_STATUS_PEND) || - (cdev->private->irb.scsw.stctl & SCSW_STCTL_STATUS_PEND)) { + if (scsw_actl(&sch->schib.scsw) != 0 || + (scsw_stctl(&sch->schib.scsw) & SCSW_STCTL_STATUS_PEND) || + (scsw_stctl(&cdev->private->irb.scsw) & SCSW_STCTL_STATUS_PEND)) { /* * No final status yet or final status not yet delivered * to the device driver. Can't do path verfication now, @@ -823,13 +762,13 @@ static void ccw_device_irq(struct ccw_device *cdev, enum dev_event dev_event) { struct irb *irb; + int is_cmd; irb = (struct irb *) __LC_IRB; + is_cmd = !scsw_is_tm(&irb->scsw); /* Check for unsolicited interrupt. */ - if ((irb->scsw.stctl == - (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) - && (!irb->scsw.cc)) { - if ((irb->scsw.dstat & DEV_STAT_UNIT_CHECK) && + if (!scsw_is_solicited(&irb->scsw)) { + if (is_cmd && (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) && !irb->esw.esw0.erw.cons) { /* Unit check but no sense data. Need basic sense. */ if (ccw_device_do_sense(cdev, irb) != 0) @@ -848,7 +787,7 @@ call_handler_unsol: } /* Accumulate status and find out if a basic sense is needed. */ ccw_device_accumulate_irb(cdev, irb); - if (cdev->private->flags.dosense) { + if (is_cmd && cdev->private->flags.dosense) { if (ccw_device_do_sense(cdev, irb) == 0) { cdev->private->state = DEV_STATE_W4SENSE; } @@ -892,9 +831,9 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event) irb = (struct irb *) __LC_IRB; /* Check for unsolicited interrupt. */ - if (irb->scsw.stctl == - (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { - if (irb->scsw.cc == 1) + if (scsw_stctl(&irb->scsw) == + (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { + if (scsw_cc(&irb->scsw) == 1) /* Basic sense hasn't started. Try again. */ ccw_device_do_sense(cdev, irb); else { @@ -912,7 +851,8 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event) * only deliver the halt/clear interrupt to the device driver as if it * had killed the original request. */ - if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC | SCSW_FCTL_HALT_FUNC)) { + if (scsw_fctl(&irb->scsw) & + (SCSW_FCTL_CLEAR_FUNC | SCSW_FCTL_HALT_FUNC)) { /* Retry Basic Sense if requested. */ if (cdev->private->flags.intretry) { cdev->private->flags.intretry = 0; @@ -986,12 +926,10 @@ ccw_device_killing_timeout(struct ccw_device *cdev, enum dev_event dev_event) ERR_PTR(-EIO)); } -void device_kill_io(struct subchannel *sch) +void ccw_device_kill_io(struct ccw_device *cdev) { int ret; - struct ccw_device *cdev; - cdev = sch_get_cdev(sch); ret = ccw_device_cancel_halt_clear(cdev); if (ret == -EBUSY) { ccw_device_set_timeout(cdev, 3*HZ); @@ -1021,9 +959,9 @@ ccw_device_stlck_done(struct ccw_device *cdev, enum dev_event dev_event) case DEV_EVENT_INTERRUPT: irb = (struct irb *) __LC_IRB; /* Check for unsolicited interrupt. */ - if ((irb->scsw.stctl == + if ((scsw_stctl(&irb->scsw) == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) && - (!irb->scsw.cc)) + (!scsw_cc(&irb->scsw))) /* FIXME: we should restart stlck here, but this * is extremely unlikely ... */ goto out_wakeup; @@ -1055,17 +993,14 @@ ccw_device_start_id(struct ccw_device *cdev, enum dev_event dev_event) ccw_device_sense_id_start(cdev); } -void -device_trigger_reprobe(struct subchannel *sch) +void ccw_device_trigger_reprobe(struct ccw_device *cdev) { - struct ccw_device *cdev; + struct subchannel *sch; - cdev = sch_get_cdev(sch); - if (!cdev) - return; if (cdev->private->state != DEV_STATE_DISCONNECTED) return; + sch = to_subchannel(cdev->dev.parent); /* Update some values. */ if (stsch(sch->schid, &sch->schib)) return; @@ -1081,7 +1016,6 @@ device_trigger_reprobe(struct subchannel *sch) sch->schib.pmcw.ena = 0; if ((sch->lpm & (sch->lpm - 1)) != 0) sch->schib.pmcw.mp = 1; - sch->schib.pmcw.intparm = (u32)(addr_t)sch; /* We should also udate ssd info, but this has to wait. */ /* Check if this is another device which appeared on the same sch. */ if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) { diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c index cba7020517ed..1bdaa614e34f 100644 --- a/drivers/s390/cio/device_id.c +++ b/drivers/s390/cio/device_id.c @@ -196,7 +196,7 @@ ccw_device_check_sense_id(struct ccw_device *cdev) irb = &cdev->private->irb; /* Check the error cases. */ - if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { + if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { /* Retry Sense ID if requested. */ if (cdev->private->flags.intretry) { cdev->private->flags.intretry = 0; @@ -234,10 +234,10 @@ ccw_device_check_sense_id(struct ccw_device *cdev) irb->ecw[6], irb->ecw[7]); return -EAGAIN; } - if (irb->scsw.cc == 3) { + if (irb->scsw.cmd.cc == 3) { u8 lpm; - lpm = to_io_private(sch)->orb.lpm; + lpm = to_io_private(sch)->orb.cmd.lpm; if ((lpm & sch->schib.pmcw.pim & sch->schib.pmcw.pam) != 0) CIO_MSG_EVENT(4, "SenseID : path %02X for device %04x " "on subchannel 0.%x.%04x is " @@ -248,9 +248,9 @@ ccw_device_check_sense_id(struct ccw_device *cdev) } /* Did we get a proper answer ? */ - if (irb->scsw.cc == 0 && cdev->private->senseid.cu_type != 0xFFFF && + if (irb->scsw.cmd.cc == 0 && cdev->private->senseid.cu_type != 0xFFFF && cdev->private->senseid.reserved == 0xFF) { - if (irb->scsw.count < sizeof(struct senseid) - 8) + if (irb->scsw.cmd.count < sizeof(struct senseid) - 8) cdev->private->flags.esid = 1; return 0; /* Success */ } @@ -260,7 +260,7 @@ ccw_device_check_sense_id(struct ccw_device *cdev) "subchannel 0.%x.%04x returns status %02X%02X\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no, - irb->scsw.dstat, irb->scsw.cstat); + irb->scsw.cmd.dstat, irb->scsw.cmd.cstat); return -EAGAIN; } @@ -277,9 +277,9 @@ ccw_device_sense_id_irq(struct ccw_device *cdev, enum dev_event dev_event) sch = to_subchannel(cdev->dev.parent); irb = (struct irb *) __LC_IRB; /* Retry sense id, if needed. */ - if (irb->scsw.stctl == + if (irb->scsw.cmd.stctl == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { - if ((irb->scsw.cc == 1) || !irb->scsw.actl) { + if ((irb->scsw.cmd.cc == 1) || !irb->scsw.cmd.actl) { ret = __ccw_device_sense_id_start(cdev); if (ret && ret != -EBUSY) ccw_device_sense_id_done(cdev, ret); diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index f308ad55a6d5..eabcc42d63df 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -17,6 +17,7 @@ #include <asm/ccwdev.h> #include <asm/idals.h> #include <asm/chpid.h> +#include <asm/fcx.h> #include "cio.h" #include "cio_debug.h" @@ -179,8 +180,8 @@ int ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa, return -EBUSY; } if (cdev->private->state != DEV_STATE_ONLINE || - ((sch->schib.scsw.stctl & SCSW_STCTL_PRIM_STATUS) && - !(sch->schib.scsw.stctl & SCSW_STCTL_SEC_STATUS)) || + ((sch->schib.scsw.cmd.stctl & SCSW_STCTL_PRIM_STATUS) && + !(sch->schib.scsw.cmd.stctl & SCSW_STCTL_SEC_STATUS)) || cdev->private->flags.doverify) return -EBUSY; ret = cio_set_options (sch, flags); @@ -379,7 +380,7 @@ int ccw_device_resume(struct ccw_device *cdev) if (cdev->private->state == DEV_STATE_NOT_OPER) return -ENODEV; if (cdev->private->state != DEV_STATE_ONLINE || - !(sch->schib.scsw.actl & SCSW_ACTL_SUSPENDED)) + !(sch->schib.scsw.cmd.actl & SCSW_ACTL_SUSPENDED)) return -EINVAL; return cio_resume(sch); } @@ -404,7 +405,7 @@ ccw_device_call_handler(struct ccw_device *cdev) * - fast notification was requested (primary status) * - unsolicited interrupts */ - stctl = cdev->private->irb.scsw.stctl; + stctl = scsw_stctl(&cdev->private->irb.scsw); ending_status = (stctl & SCSW_STCTL_SEC_STATUS) || (stctl == (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)) || (stctl == SCSW_STCTL_STATUS_PEND); @@ -497,7 +498,7 @@ ccw_device_stlck(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); CIO_TRACE_EVENT(2, "stl lock"); - CIO_TRACE_EVENT(2, cdev->dev.bus_id); + CIO_TRACE_EVENT(2, dev_name(&cdev->dev)); buf = kmalloc(32*sizeof(char), GFP_DMA|GFP_KERNEL); if (!buf) @@ -528,14 +529,15 @@ ccw_device_stlck(struct ccw_device *cdev) cio_disable_subchannel(sch); //FIXME: return code? goto out_unlock; } - cdev->private->irb.scsw.actl |= SCSW_ACTL_START_PEND; + cdev->private->irb.scsw.cmd.actl |= SCSW_ACTL_START_PEND; spin_unlock_irqrestore(sch->lock, flags); - wait_event(cdev->private->wait_q, cdev->private->irb.scsw.actl == 0); + wait_event(cdev->private->wait_q, + cdev->private->irb.scsw.cmd.actl == 0); spin_lock_irqsave(sch->lock, flags); cio_disable_subchannel(sch); //FIXME: return code? - if ((cdev->private->irb.scsw.dstat != + if ((cdev->private->irb.scsw.cmd.dstat != (DEV_STAT_CHN_END|DEV_STAT_DEV_END)) || - (cdev->private->irb.scsw.cstat != 0)) + (cdev->private->irb.scsw.cmd.cstat != 0)) ret = -EIO; /* Clear irb. */ memset(&cdev->private->irb, 0, sizeof(struct irb)); @@ -568,6 +570,122 @@ void ccw_device_get_id(struct ccw_device *cdev, struct ccw_dev_id *dev_id) } EXPORT_SYMBOL(ccw_device_get_id); +/** + * ccw_device_tm_start_key - perform start function + * @cdev: ccw device on which to perform the start function + * @tcw: transport-command word to be started + * @intparm: user defined parameter to be passed to the interrupt handler + * @lpm: mask of paths to use + * @key: storage key to use for storage access + * + * Start the tcw on the given ccw device. Return zero on success, non-zero + * otherwise. + */ +int ccw_device_tm_start_key(struct ccw_device *cdev, struct tcw *tcw, + unsigned long intparm, u8 lpm, u8 key) +{ + struct subchannel *sch; + int rc; + + sch = to_subchannel(cdev->dev.parent); + if (cdev->private->state != DEV_STATE_ONLINE) + return -EIO; + /* Adjust requested path mask to excluded varied off paths. */ + if (lpm) { + lpm &= sch->opm; + if (lpm == 0) + return -EACCES; + } + rc = cio_tm_start_key(sch, tcw, lpm, key); + if (rc == 0) + cdev->private->intparm = intparm; + return rc; +} +EXPORT_SYMBOL(ccw_device_tm_start_key); + +/** + * ccw_device_tm_start_timeout_key - perform start function + * @cdev: ccw device on which to perform the start function + * @tcw: transport-command word to be started + * @intparm: user defined parameter to be passed to the interrupt handler + * @lpm: mask of paths to use + * @key: storage key to use for storage access + * @expires: time span in jiffies after which to abort request + * + * Start the tcw on the given ccw device. Return zero on success, non-zero + * otherwise. + */ +int ccw_device_tm_start_timeout_key(struct ccw_device *cdev, struct tcw *tcw, + unsigned long intparm, u8 lpm, u8 key, + int expires) +{ + int ret; + + ccw_device_set_timeout(cdev, expires); + ret = ccw_device_tm_start_key(cdev, tcw, intparm, lpm, key); + if (ret != 0) + ccw_device_set_timeout(cdev, 0); + return ret; +} +EXPORT_SYMBOL(ccw_device_tm_start_timeout_key); + +/** + * ccw_device_tm_start - perform start function + * @cdev: ccw device on which to perform the start function + * @tcw: transport-command word to be started + * @intparm: user defined parameter to be passed to the interrupt handler + * @lpm: mask of paths to use + * + * Start the tcw on the given ccw device. Return zero on success, non-zero + * otherwise. + */ +int ccw_device_tm_start(struct ccw_device *cdev, struct tcw *tcw, + unsigned long intparm, u8 lpm) +{ + return ccw_device_tm_start_key(cdev, tcw, intparm, lpm, + PAGE_DEFAULT_KEY); +} +EXPORT_SYMBOL(ccw_device_tm_start); + +/** + * ccw_device_tm_start_timeout - perform start function + * @cdev: ccw device on which to perform the start function + * @tcw: transport-command word to be started + * @intparm: user defined parameter to be passed to the interrupt handler + * @lpm: mask of paths to use + * @expires: time span in jiffies after which to abort request + * + * Start the tcw on the given ccw device. Return zero on success, non-zero + * otherwise. + */ +int ccw_device_tm_start_timeout(struct ccw_device *cdev, struct tcw *tcw, + unsigned long intparm, u8 lpm, int expires) +{ + return ccw_device_tm_start_timeout_key(cdev, tcw, intparm, lpm, + PAGE_DEFAULT_KEY, expires); +} +EXPORT_SYMBOL(ccw_device_tm_start_timeout); + +/** + * ccw_device_tm_intrg - perform interrogate function + * @cdev: ccw device on which to perform the interrogate function + * + * Perform an interrogate function on the given ccw device. Return zero on + * success, non-zero otherwise. + */ +int ccw_device_tm_intrg(struct ccw_device *cdev) +{ + struct subchannel *sch = to_subchannel(cdev->dev.parent); + + if (cdev->private->state != DEV_STATE_ONLINE) + return -EIO; + if (!scsw_is_tm(&sch->schib.scsw) || + !(scsw_actl(&sch->schib.scsw) | SCSW_ACTL_START_PEND)) + return -EINVAL; + return cio_tm_intrg(sch); +} +EXPORT_SYMBOL(ccw_device_tm_intrg); + // FIXME: these have to go: int diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c index 5cf7be008e98..86bc94eb607f 100644 --- a/drivers/s390/cio/device_pgid.c +++ b/drivers/s390/cio/device_pgid.c @@ -28,13 +28,13 @@ * Helper function called from interrupt context to decide whether an * operation should be tried again. */ -static int __ccw_device_should_retry(struct scsw *scsw) +static int __ccw_device_should_retry(union scsw *scsw) { /* CC is only valid if start function bit is set. */ - if ((scsw->fctl & SCSW_FCTL_START_FUNC) && scsw->cc == 1) + if ((scsw->cmd.fctl & SCSW_FCTL_START_FUNC) && scsw->cmd.cc == 1) return 1; /* No more activity. For sense and set PGID we stubbornly try again. */ - if (!scsw->actl) + if (!scsw->cmd.actl) return 1; return 0; } @@ -125,7 +125,7 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); irb = &cdev->private->irb; - if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { + if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { /* Retry Sense PGID if requested. */ if (cdev->private->flags.intretry) { cdev->private->flags.intretry = 0; @@ -155,10 +155,10 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev) irb->ecw[6], irb->ecw[7]); return -EAGAIN; } - if (irb->scsw.cc == 3) { + if (irb->scsw.cmd.cc == 3) { u8 lpm; - lpm = to_io_private(sch)->orb.lpm; + lpm = to_io_private(sch)->orb.cmd.lpm; CIO_MSG_EVENT(3, "SNID - Device %04x on Subchannel 0.%x.%04x," " lpm %02X, became 'not operational'\n", cdev->private->dev_id.devno, sch->schid.ssid, @@ -188,7 +188,7 @@ ccw_device_sense_pgid_irq(struct ccw_device *cdev, enum dev_event dev_event) irb = (struct irb *) __LC_IRB; - if (irb->scsw.stctl == + if (irb->scsw.cmd.stctl == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { if (__ccw_device_should_retry(&irb->scsw)) { ret = __ccw_device_sense_pgid_start(cdev); @@ -331,7 +331,7 @@ __ccw_device_check_pgid(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); irb = &cdev->private->irb; - if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { + if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { /* Retry Set PGID if requested. */ if (cdev->private->flags.intretry) { cdev->private->flags.intretry = 0; @@ -355,7 +355,7 @@ __ccw_device_check_pgid(struct ccw_device *cdev) irb->ecw[6], irb->ecw[7]); return -EAGAIN; } - if (irb->scsw.cc == 3) { + if (irb->scsw.cmd.cc == 3) { CIO_MSG_EVENT(3, "SPID - Device %04x on Subchannel 0.%x.%04x," " lpm %02X, became 'not operational'\n", cdev->private->dev_id.devno, sch->schid.ssid, @@ -376,7 +376,7 @@ static int __ccw_device_check_nop(struct ccw_device *cdev) sch = to_subchannel(cdev->dev.parent); irb = &cdev->private->irb; - if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { + if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC)) { /* Retry NOP if requested. */ if (cdev->private->flags.intretry) { cdev->private->flags.intretry = 0; @@ -384,7 +384,7 @@ static int __ccw_device_check_nop(struct ccw_device *cdev) } return -ETIME; } - if (irb->scsw.cc == 3) { + if (irb->scsw.cmd.cc == 3) { CIO_MSG_EVENT(3, "NOP - Device %04x on Subchannel 0.%x.%04x," " lpm %02X, became 'not operational'\n", cdev->private->dev_id.devno, sch->schid.ssid, @@ -438,7 +438,7 @@ ccw_device_verify_irq(struct ccw_device *cdev, enum dev_event dev_event) irb = (struct irb *) __LC_IRB; - if (irb->scsw.stctl == + if (irb->scsw.cmd.stctl == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { if (__ccw_device_should_retry(&irb->scsw)) __ccw_device_verify_start(cdev); @@ -544,7 +544,7 @@ ccw_device_disband_irq(struct ccw_device *cdev, enum dev_event dev_event) irb = (struct irb *) __LC_IRB; - if (irb->scsw.stctl == + if (irb->scsw.cmd.stctl == (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) { if (__ccw_device_should_retry(&irb->scsw)) __ccw_device_disband_start(cdev); diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c index 4a38993000f2..1b03c5423be2 100644 --- a/drivers/s390/cio/device_status.c +++ b/drivers/s390/cio/device_status.c @@ -29,9 +29,11 @@ static void ccw_device_msg_control_check(struct ccw_device *cdev, struct irb *irb) { - if (!(irb->scsw.cstat & (SCHN_STAT_CHN_DATA_CHK | - SCHN_STAT_CHN_CTRL_CHK | - SCHN_STAT_INTF_CTRL_CHK))) + char dbf_text[15]; + + if (!scsw_is_valid_cstat(&irb->scsw) || + !(scsw_cstat(&irb->scsw) & (SCHN_STAT_CHN_DATA_CHK | + SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK))) return; CIO_MSG_EVENT(0, "Channel-Check or Interface-Control-Check " "received" @@ -39,15 +41,10 @@ ccw_device_msg_control_check(struct ccw_device *cdev, struct irb *irb) ": %02X sch_stat : %02X\n", cdev->private->dev_id.devno, cdev->private->schid.ssid, cdev->private->schid.sch_no, - irb->scsw.dstat, irb->scsw.cstat); - - if (irb->scsw.cc != 3) { - char dbf_text[15]; - - sprintf(dbf_text, "chk%x", cdev->private->schid.sch_no); - CIO_TRACE_EVENT(0, dbf_text); - CIO_HEX_EVENT(0, irb, sizeof (struct irb)); - } + scsw_dstat(&irb->scsw), scsw_cstat(&irb->scsw)); + sprintf(dbf_text, "chk%x", cdev->private->schid.sch_no); + CIO_TRACE_EVENT(0, dbf_text); + CIO_HEX_EVENT(0, irb, sizeof(struct irb)); } /* @@ -81,12 +78,12 @@ ccw_device_accumulate_ecw(struct ccw_device *cdev, struct irb *irb) * are condition that have to be met for the extended control * bit to have meaning. Sick. */ - cdev->private->irb.scsw.ectl = 0; - if ((irb->scsw.stctl & SCSW_STCTL_ALERT_STATUS) && - !(irb->scsw.stctl & SCSW_STCTL_INTER_STATUS)) - cdev->private->irb.scsw.ectl = irb->scsw.ectl; + cdev->private->irb.scsw.cmd.ectl = 0; + if ((irb->scsw.cmd.stctl & SCSW_STCTL_ALERT_STATUS) && + !(irb->scsw.cmd.stctl & SCSW_STCTL_INTER_STATUS)) + cdev->private->irb.scsw.cmd.ectl = irb->scsw.cmd.ectl; /* Check if extended control word is valid. */ - if (!cdev->private->irb.scsw.ectl) + if (!cdev->private->irb.scsw.cmd.ectl) return; /* Copy concurrent sense / model dependent information. */ memcpy (&cdev->private->irb.ecw, irb->ecw, sizeof (irb->ecw)); @@ -98,11 +95,12 @@ ccw_device_accumulate_ecw(struct ccw_device *cdev, struct irb *irb) static int ccw_device_accumulate_esw_valid(struct irb *irb) { - if (!irb->scsw.eswf && irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) + if (!irb->scsw.cmd.eswf && + (irb->scsw.cmd.stctl == SCSW_STCTL_STATUS_PEND)) return 0; - if (irb->scsw.stctl == - (SCSW_STCTL_INTER_STATUS|SCSW_STCTL_STATUS_PEND) && - !(irb->scsw.actl & SCSW_ACTL_SUSPENDED)) + if (irb->scsw.cmd.stctl == + (SCSW_STCTL_INTER_STATUS|SCSW_STCTL_STATUS_PEND) && + !(irb->scsw.cmd.actl & SCSW_ACTL_SUSPENDED)) return 0; return 1; } @@ -125,7 +123,7 @@ ccw_device_accumulate_esw(struct ccw_device *cdev, struct irb *irb) cdev_irb->esw.esw1.lpum = irb->esw.esw1.lpum; /* Copy subchannel logout information if esw is of format 0. */ - if (irb->scsw.eswf) { + if (irb->scsw.cmd.eswf) { cdev_sublog = &cdev_irb->esw.esw0.sublog; sublog = &irb->esw.esw0.sublog; /* Copy extended status flags. */ @@ -134,7 +132,7 @@ ccw_device_accumulate_esw(struct ccw_device *cdev, struct irb *irb) * Copy fields that have a meaning for channel data check * channel control check and interface control check. */ - if (irb->scsw.cstat & (SCHN_STAT_CHN_DATA_CHK | + if (irb->scsw.cmd.cstat & (SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK)) { /* Copy ancillary report bit. */ @@ -155,7 +153,7 @@ ccw_device_accumulate_esw(struct ccw_device *cdev, struct irb *irb) /* Copy i/o-error alert. */ cdev_sublog->ioerr = sublog->ioerr; /* Copy channel path timeout bit. */ - if (irb->scsw.cstat & SCHN_STAT_INTF_CTRL_CHK) + if (irb->scsw.cmd.cstat & SCHN_STAT_INTF_CTRL_CHK) cdev_irb->esw.esw0.erw.cpt = irb->esw.esw0.erw.cpt; /* Copy failing storage address validity flag. */ cdev_irb->esw.esw0.erw.fsavf = irb->esw.esw0.erw.fsavf; @@ -200,24 +198,24 @@ ccw_device_accumulate_irb(struct ccw_device *cdev, struct irb *irb) * If not, the remaining bit have no meaning and we must ignore them. * The esw is not meaningful as well... */ - if (!(irb->scsw.stctl & SCSW_STCTL_STATUS_PEND)) + if (!(scsw_stctl(&irb->scsw) & SCSW_STCTL_STATUS_PEND)) return; /* Check for channel checks and interface control checks. */ ccw_device_msg_control_check(cdev, irb); /* Check for path not operational. */ - if (irb->scsw.pno && irb->scsw.fctl != 0 && - (!(irb->scsw.stctl & SCSW_STCTL_INTER_STATUS) || - (irb->scsw.actl & SCSW_ACTL_SUSPENDED))) + if (scsw_is_valid_pno(&irb->scsw) && scsw_pno(&irb->scsw)) ccw_device_path_notoper(cdev); - + /* No irb accumulation for transport mode irbs. */ + if (scsw_is_tm(&irb->scsw)) { + memcpy(&cdev->private->irb, irb, sizeof(struct irb)); + return; + } /* * Don't accumulate unsolicited interrupts. */ - if ((irb->scsw.stctl == - (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)) && - (!irb->scsw.cc)) + if (!scsw_is_solicited(&irb->scsw)) return; cdev_irb = &cdev->private->irb; @@ -227,62 +225,63 @@ ccw_device_accumulate_irb(struct ccw_device *cdev, struct irb *irb) * status at the subchannel has been cleared and we must not pass * intermediate accumulated status to the device driver. */ - if (irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC) + if (irb->scsw.cmd.fctl & SCSW_FCTL_CLEAR_FUNC) memset(&cdev->private->irb, 0, sizeof(struct irb)); /* Copy bits which are valid only for the start function. */ - if (irb->scsw.fctl & SCSW_FCTL_START_FUNC) { + if (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC) { /* Copy key. */ - cdev_irb->scsw.key = irb->scsw.key; + cdev_irb->scsw.cmd.key = irb->scsw.cmd.key; /* Copy suspend control bit. */ - cdev_irb->scsw.sctl = irb->scsw.sctl; + cdev_irb->scsw.cmd.sctl = irb->scsw.cmd.sctl; /* Accumulate deferred condition code. */ - cdev_irb->scsw.cc |= irb->scsw.cc; + cdev_irb->scsw.cmd.cc |= irb->scsw.cmd.cc; /* Copy ccw format bit. */ - cdev_irb->scsw.fmt = irb->scsw.fmt; + cdev_irb->scsw.cmd.fmt = irb->scsw.cmd.fmt; /* Copy prefetch bit. */ - cdev_irb->scsw.pfch = irb->scsw.pfch; + cdev_irb->scsw.cmd.pfch = irb->scsw.cmd.pfch; /* Copy initial-status-interruption-control. */ - cdev_irb->scsw.isic = irb->scsw.isic; + cdev_irb->scsw.cmd.isic = irb->scsw.cmd.isic; /* Copy address limit checking control. */ - cdev_irb->scsw.alcc = irb->scsw.alcc; + cdev_irb->scsw.cmd.alcc = irb->scsw.cmd.alcc; /* Copy suppress suspend bit. */ - cdev_irb->scsw.ssi = irb->scsw.ssi; + cdev_irb->scsw.cmd.ssi = irb->scsw.cmd.ssi; } /* Take care of the extended control bit and extended control word. */ ccw_device_accumulate_ecw(cdev, irb); /* Accumulate function control. */ - cdev_irb->scsw.fctl |= irb->scsw.fctl; + cdev_irb->scsw.cmd.fctl |= irb->scsw.cmd.fctl; /* Copy activity control. */ - cdev_irb->scsw.actl= irb->scsw.actl; + cdev_irb->scsw.cmd.actl = irb->scsw.cmd.actl; /* Accumulate status control. */ - cdev_irb->scsw.stctl |= irb->scsw.stctl; + cdev_irb->scsw.cmd.stctl |= irb->scsw.cmd.stctl; /* * Copy ccw address if it is valid. This is a bit simplified * but should be close enough for all practical purposes. */ - if ((irb->scsw.stctl & SCSW_STCTL_PRIM_STATUS) || - ((irb->scsw.stctl == + if ((irb->scsw.cmd.stctl & SCSW_STCTL_PRIM_STATUS) || + ((irb->scsw.cmd.stctl == (SCSW_STCTL_INTER_STATUS|SCSW_STCTL_STATUS_PEND)) && - (irb->scsw.actl & SCSW_ACTL_DEVACT) && - (irb->scsw.actl & SCSW_ACTL_SCHACT)) || - (irb->scsw.actl & SCSW_ACTL_SUSPENDED)) - cdev_irb->scsw.cpa = irb->scsw.cpa; + (irb->scsw.cmd.actl & SCSW_ACTL_DEVACT) && + (irb->scsw.cmd.actl & SCSW_ACTL_SCHACT)) || + (irb->scsw.cmd.actl & SCSW_ACTL_SUSPENDED)) + cdev_irb->scsw.cmd.cpa = irb->scsw.cmd.cpa; /* Accumulate device status, but not the device busy flag. */ - cdev_irb->scsw.dstat &= ~DEV_STAT_BUSY; + cdev_irb->scsw.cmd.dstat &= ~DEV_STAT_BUSY; /* dstat is not always valid. */ - if (irb->scsw.stctl & + if (irb->scsw.cmd.stctl & (SCSW_STCTL_PRIM_STATUS | SCSW_STCTL_SEC_STATUS | SCSW_STCTL_INTER_STATUS | SCSW_STCTL_ALERT_STATUS)) - cdev_irb->scsw.dstat |= irb->scsw.dstat; + cdev_irb->scsw.cmd.dstat |= irb->scsw.cmd.dstat; /* Accumulate subchannel status. */ - cdev_irb->scsw.cstat |= irb->scsw.cstat; + cdev_irb->scsw.cmd.cstat |= irb->scsw.cmd.cstat; /* Copy residual count if it is valid. */ - if ((irb->scsw.stctl & SCSW_STCTL_PRIM_STATUS) && - (irb->scsw.cstat & ~(SCHN_STAT_PCI | SCHN_STAT_INCORR_LEN)) == 0) - cdev_irb->scsw.count = irb->scsw.count; + if ((irb->scsw.cmd.stctl & SCSW_STCTL_PRIM_STATUS) && + (irb->scsw.cmd.cstat & ~(SCHN_STAT_PCI | SCHN_STAT_INCORR_LEN)) + == 0) + cdev_irb->scsw.cmd.count = irb->scsw.cmd.count; /* Take care of bits in the extended status word. */ ccw_device_accumulate_esw(cdev, irb); @@ -299,7 +298,7 @@ ccw_device_accumulate_irb(struct ccw_device *cdev, struct irb *irb) * sense facility available/supported when enabling the * concurrent sense facility. */ - if ((cdev_irb->scsw.dstat & DEV_STAT_UNIT_CHECK) && + if ((cdev_irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) && !(cdev_irb->esw.esw0.erw.cons)) cdev->private->flags.dosense = 1; } @@ -317,7 +316,7 @@ ccw_device_do_sense(struct ccw_device *cdev, struct irb *irb) sch = to_subchannel(cdev->dev.parent); /* A sense is required, can we do it now ? */ - if ((irb->scsw.actl & (SCSW_ACTL_DEVACT | SCSW_ACTL_SCHACT)) != 0) + if (scsw_actl(&irb->scsw) & (SCSW_ACTL_DEVACT | SCSW_ACTL_SCHACT)) /* * we received an Unit Check but we have no final * status yet, therefore we must delay the SENSE @@ -355,20 +354,18 @@ ccw_device_accumulate_basic_sense(struct ccw_device *cdev, struct irb *irb) * If not, the remaining bit have no meaning and we must ignore them. * The esw is not meaningful as well... */ - if (!(irb->scsw.stctl & SCSW_STCTL_STATUS_PEND)) + if (!(scsw_stctl(&irb->scsw) & SCSW_STCTL_STATUS_PEND)) return; /* Check for channel checks and interface control checks. */ ccw_device_msg_control_check(cdev, irb); /* Check for path not operational. */ - if (irb->scsw.pno && irb->scsw.fctl != 0 && - (!(irb->scsw.stctl & SCSW_STCTL_INTER_STATUS) || - (irb->scsw.actl & SCSW_ACTL_SUSPENDED))) + if (scsw_is_valid_pno(&irb->scsw) && scsw_pno(&irb->scsw)) ccw_device_path_notoper(cdev); - if (!(irb->scsw.dstat & DEV_STAT_UNIT_CHECK) && - (irb->scsw.dstat & DEV_STAT_CHN_END)) { + if (!(irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) && + (irb->scsw.cmd.dstat & DEV_STAT_CHN_END)) { cdev->private->irb.esw.esw0.erw.cons = 1; cdev->private->flags.dosense = 0; } @@ -386,11 +383,11 @@ int ccw_device_accumulate_and_sense(struct ccw_device *cdev, struct irb *irb) { ccw_device_accumulate_irb(cdev, irb); - if ((irb->scsw.actl & (SCSW_ACTL_DEVACT | SCSW_ACTL_SCHACT)) != 0) + if ((irb->scsw.cmd.actl & (SCSW_ACTL_DEVACT | SCSW_ACTL_SCHACT)) != 0) return -EBUSY; /* Check for basic sense. */ if (cdev->private->flags.dosense && - !(irb->scsw.dstat & DEV_STAT_UNIT_CHECK)) { + !(irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK)) { cdev->private->irb.esw.esw0.erw.cons = 1; cdev->private->flags.dosense = 0; return 0; diff --git a/drivers/s390/cio/fcx.c b/drivers/s390/cio/fcx.c new file mode 100644 index 000000000000..61677dfbdc9b --- /dev/null +++ b/drivers/s390/cio/fcx.c @@ -0,0 +1,350 @@ +/* + * Functions for assembling fcx enabled I/O control blocks. + * + * Copyright IBM Corp. 2008 + * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/module.h> +#include <asm/fcx.h> +#include "cio.h" + +/** + * tcw_get_intrg - return pointer to associated interrogate tcw + * @tcw: pointer to the original tcw + * + * Return a pointer to the interrogate tcw associated with the specified tcw + * or %NULL if there is no associated interrogate tcw. + */ +struct tcw *tcw_get_intrg(struct tcw *tcw) +{ + return (struct tcw *) ((addr_t) tcw->intrg); +} +EXPORT_SYMBOL(tcw_get_intrg); + +/** + * tcw_get_data - return pointer to input/output data associated with tcw + * @tcw: pointer to the tcw + * + * Return the input or output data address specified in the tcw depending + * on whether the r-bit or the w-bit is set. If neither bit is set, return + * %NULL. + */ +void *tcw_get_data(struct tcw *tcw) +{ + if (tcw->r) + return (void *) ((addr_t) tcw->input); + if (tcw->w) + return (void *) ((addr_t) tcw->output); + return NULL; +} +EXPORT_SYMBOL(tcw_get_data); + +/** + * tcw_get_tccb - return pointer to tccb associated with tcw + * @tcw: pointer to the tcw + * + * Return pointer to the tccb associated with this tcw. + */ +struct tccb *tcw_get_tccb(struct tcw *tcw) +{ + return (struct tccb *) ((addr_t) tcw->tccb); +} +EXPORT_SYMBOL(tcw_get_tccb); + +/** + * tcw_get_tsb - return pointer to tsb associated with tcw + * @tcw: pointer to the tcw + * + * Return pointer to the tsb associated with this tcw. + */ +struct tsb *tcw_get_tsb(struct tcw *tcw) +{ + return (struct tsb *) ((addr_t) tcw->tsb); +} +EXPORT_SYMBOL(tcw_get_tsb); + +/** + * tcw_init - initialize tcw data structure + * @tcw: pointer to the tcw to be initialized + * @r: initial value of the r-bit + * @w: initial value of the w-bit + * + * Initialize all fields of the specified tcw data structure with zero and + * fill in the format, flags, r and w fields. + */ +void tcw_init(struct tcw *tcw, int r, int w) +{ + memset(tcw, 0, sizeof(struct tcw)); + tcw->format = TCW_FORMAT_DEFAULT; + tcw->flags = TCW_FLAGS_TIDAW_FORMAT(TCW_TIDAW_FORMAT_DEFAULT); + if (r) + tcw->r = 1; + if (w) + tcw->w = 1; +} +EXPORT_SYMBOL(tcw_init); + +static inline size_t tca_size(struct tccb *tccb) +{ + return tccb->tcah.tcal - 12; +} + +static u32 calc_dcw_count(struct tccb *tccb) +{ + int offset; + struct dcw *dcw; + u32 count = 0; + size_t size; + + size = tca_size(tccb); + for (offset = 0; offset < size;) { + dcw = (struct dcw *) &tccb->tca[offset]; + count += dcw->count; + if (!(dcw->flags & DCW_FLAGS_CC)) + break; + offset += sizeof(struct dcw) + ALIGN((int) dcw->cd_count, 4); + } + return count; +} + +static u32 calc_cbc_size(struct tidaw *tidaw, int num) +{ + int i; + u32 cbc_data; + u32 cbc_count = 0; + u64 data_count = 0; + + for (i = 0; i < num; i++) { + if (tidaw[i].flags & TIDAW_FLAGS_LAST) + break; + /* TODO: find out if padding applies to total of data + * transferred or data transferred by this tidaw. Assumption: + * applies to total. */ + data_count += tidaw[i].count; + if (tidaw[i].flags & TIDAW_FLAGS_INSERT_CBC) { + cbc_data = 4 + ALIGN(data_count, 4) - data_count; + cbc_count += cbc_data; + data_count += cbc_data; + } + } + return cbc_count; +} + +/** + * tcw_finalize - finalize tcw length fields and tidaw list + * @tcw: pointer to the tcw + * @num_tidaws: the number of tidaws used to address input/output data or zero + * if no tida is used + * + * Calculate the input-/output-count and tccbl field in the tcw, add a + * tcat the tccb and terminate the data tidaw list if used. + * + * Note: in case input- or output-tida is used, the tidaw-list must be stored + * in contiguous storage (no ttic). The tcal field in the tccb must be + * up-to-date. + */ +void tcw_finalize(struct tcw *tcw, int num_tidaws) +{ + struct tidaw *tidaw; + struct tccb *tccb; + struct tccb_tcat *tcat; + u32 count; + + /* Terminate tidaw list. */ + tidaw = tcw_get_data(tcw); + if (num_tidaws > 0) + tidaw[num_tidaws - 1].flags |= TIDAW_FLAGS_LAST; + /* Add tcat to tccb. */ + tccb = tcw_get_tccb(tcw); + tcat = (struct tccb_tcat *) &tccb->tca[tca_size(tccb)]; + memset(tcat, 0, sizeof(tcat)); + /* Calculate tcw input/output count and tcat transport count. */ + count = calc_dcw_count(tccb); + if (tcw->w && (tcw->flags & TCW_FLAGS_OUTPUT_TIDA)) + count += calc_cbc_size(tidaw, num_tidaws); + if (tcw->r) + tcw->input_count = count; + else if (tcw->w) + tcw->output_count = count; + tcat->count = ALIGN(count, 4) + 4; + /* Calculate tccbl. */ + tcw->tccbl = (sizeof(struct tccb) + tca_size(tccb) + + sizeof(struct tccb_tcat) - 20) >> 2; +} +EXPORT_SYMBOL(tcw_finalize); + +/** + * tcw_set_intrg - set the interrogate tcw address of a tcw + * @tcw: the tcw address + * @intrg_tcw: the address of the interrogate tcw + * + * Set the address of the interrogate tcw in the specified tcw. + */ +void tcw_set_intrg(struct tcw *tcw, struct tcw *intrg_tcw) +{ + tcw->intrg = (u32) ((addr_t) intrg_tcw); +} +EXPORT_SYMBOL(tcw_set_intrg); + +/** + * tcw_set_data - set data address and tida flag of a tcw + * @tcw: the tcw address + * @data: the data address + * @use_tidal: zero of the data address specifies a contiguous block of data, + * non-zero if it specifies a list if tidaws. + * + * Set the input/output data address of a tcw (depending on the value of the + * r-flag and w-flag). If @use_tidal is non-zero, the corresponding tida flag + * is set as well. + */ +void tcw_set_data(struct tcw *tcw, void *data, int use_tidal) +{ + if (tcw->r) { + tcw->input = (u64) ((addr_t) data); + if (use_tidal) + tcw->flags |= TCW_FLAGS_INPUT_TIDA; + } else if (tcw->w) { + tcw->output = (u64) ((addr_t) data); + if (use_tidal) + tcw->flags |= TCW_FLAGS_OUTPUT_TIDA; + } +} +EXPORT_SYMBOL(tcw_set_data); + +/** + * tcw_set_tccb - set tccb address of a tcw + * @tcw: the tcw address + * @tccb: the tccb address + * + * Set the address of the tccb in the specified tcw. + */ +void tcw_set_tccb(struct tcw *tcw, struct tccb *tccb) +{ + tcw->tccb = (u64) ((addr_t) tccb); +} +EXPORT_SYMBOL(tcw_set_tccb); + +/** + * tcw_set_tsb - set tsb address of a tcw + * @tcw: the tcw address + * @tsb: the tsb address + * + * Set the address of the tsb in the specified tcw. + */ +void tcw_set_tsb(struct tcw *tcw, struct tsb *tsb) +{ + tcw->tsb = (u64) ((addr_t) tsb); +} +EXPORT_SYMBOL(tcw_set_tsb); + +/** + * tccb_init - initialize tccb + * @tccb: the tccb address + * @size: the maximum size of the tccb + * @sac: the service-action-code to be user + * + * Initialize the header of the specified tccb by resetting all values to zero + * and filling in defaults for format, sac and initial tcal fields. + */ +void tccb_init(struct tccb *tccb, size_t size, u32 sac) +{ + memset(tccb, 0, size); + tccb->tcah.format = TCCB_FORMAT_DEFAULT; + tccb->tcah.sac = sac; + tccb->tcah.tcal = 12; +} +EXPORT_SYMBOL(tccb_init); + +/** + * tsb_init - initialize tsb + * @tsb: the tsb address + * + * Initialize the specified tsb by resetting all values to zero. + */ +void tsb_init(struct tsb *tsb) +{ + memset(tsb, 0, sizeof(tsb)); +} +EXPORT_SYMBOL(tsb_init); + +/** + * tccb_add_dcw - add a dcw to the tccb + * @tccb: the tccb address + * @tccb_size: the maximum tccb size + * @cmd: the dcw command + * @flags: flags for the dcw + * @cd: pointer to control data for this dcw or NULL if none is required + * @cd_count: number of control data bytes for this dcw + * @count: number of data bytes for this dcw + * + * Add a new dcw to the specified tccb by writing the dcw information specified + * by @cmd, @flags, @cd, @cd_count and @count to the tca of the tccb. Return + * a pointer to the newly added dcw on success or -%ENOSPC if the new dcw + * would exceed the available space as defined by @tccb_size. + * + * Note: the tcal field of the tccb header will be updates to reflect added + * content. + */ +struct dcw *tccb_add_dcw(struct tccb *tccb, size_t tccb_size, u8 cmd, u8 flags, + void *cd, u8 cd_count, u32 count) +{ + struct dcw *dcw; + int size; + int tca_offset; + + /* Check for space. */ + tca_offset = tca_size(tccb); + size = ALIGN(sizeof(struct dcw) + cd_count, 4); + if (sizeof(struct tccb_tcah) + tca_offset + size + + sizeof(struct tccb_tcat) > tccb_size) + return ERR_PTR(-ENOSPC); + /* Add dcw to tca. */ + dcw = (struct dcw *) &tccb->tca[tca_offset]; + memset(dcw, 0, size); + dcw->cmd = cmd; + dcw->flags = flags; + dcw->count = count; + dcw->cd_count = cd_count; + if (cd) + memcpy(&dcw->cd[0], cd, cd_count); + tccb->tcah.tcal += size; + return dcw; +} +EXPORT_SYMBOL(tccb_add_dcw); + +/** + * tcw_add_tidaw - add a tidaw to a tcw + * @tcw: the tcw address + * @num_tidaws: the current number of tidaws + * @flags: flags for the new tidaw + * @addr: address value for the new tidaw + * @count: count value for the new tidaw + * + * Add a new tidaw to the input/output data tidaw-list of the specified tcw + * (depending on the value of the r-flag and w-flag) and return a pointer to + * the new tidaw. + * + * Note: the tidaw-list is assumed to be contiguous with no ttics. The caller + * must ensure that there is enough space for the new tidaw. The last-tidaw + * flag for the last tidaw in the list will be set by tcw_finalize. + */ +struct tidaw *tcw_add_tidaw(struct tcw *tcw, int num_tidaws, u8 flags, + void *addr, u32 count) +{ + struct tidaw *tidaw; + + /* Add tidaw to tidaw-list. */ + tidaw = ((struct tidaw *) tcw_get_data(tcw)) + num_tidaws; + memset(tidaw, 0, sizeof(struct tidaw)); + tidaw->flags = flags; + tidaw->count = count; + tidaw->addr = (u64) ((addr_t) addr); + return tidaw; +} +EXPORT_SYMBOL(tcw_add_tidaw); diff --git a/drivers/s390/cio/idset.h b/drivers/s390/cio/idset.h index 144466ab8c15..528065cb5021 100644 --- a/drivers/s390/cio/idset.h +++ b/drivers/s390/cio/idset.h @@ -8,7 +8,7 @@ #ifndef S390_IDSET_H #define S390_IDSET_H S390_IDSET_H -#include "schid.h" +#include <asm/schid.h> struct idset; diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h index 8c613160bfce..3f8f1cf69c76 100644 --- a/drivers/s390/cio/io_sch.h +++ b/drivers/s390/cio/io_sch.h @@ -1,12 +1,12 @@ #ifndef S390_IO_SCH_H #define S390_IO_SCH_H -#include "schid.h" +#include <asm/schid.h> /* - * operation request block + * command-mode operation request block */ -struct orb { +struct cmd_orb { u32 intparm; /* interruption parameter */ u32 key : 4; /* flags, like key, suspend control, etc. */ u32 spnd : 1; /* suspend control */ @@ -28,8 +28,36 @@ struct orb { u32 cpa; /* channel program address */ } __attribute__ ((packed, aligned(4))); +/* + * transport-mode operation request block + */ +struct tm_orb { + u32 intparm; + u32 key:4; + u32 :9; + u32 b:1; + u32 :2; + u32 lpm:8; + u32 :7; + u32 x:1; + u32 tcw; + u32 prio:8; + u32 :8; + u32 rsvpgm:8; + u32 :8; + u32 :32; + u32 :32; + u32 :32; + u32 :32; +} __attribute__ ((packed, aligned(4))); + +union orb { + struct cmd_orb cmd; + struct tm_orb tm; +} __attribute__ ((packed, aligned(4))); + struct io_subchannel_private { - struct orb orb; /* operation request block */ + union orb orb; /* operation request block */ struct ccw1 sense_ccw; /* static ccw for sense command */ } __attribute__ ((aligned(8))); @@ -95,16 +123,18 @@ struct ccw_device_private { void *cmb_wait; /* deferred cmb enable/disable */ }; -static inline int ssch(struct subchannel_id schid, volatile struct orb *addr) +static inline int ssch(struct subchannel_id schid, volatile union orb *addr) { register struct subchannel_id reg1 asm("1") = schid; - int ccode; + int ccode = -EIO; asm volatile( " ssch 0(%2)\n" - " ipm %0\n" - " srl %0,28" - : "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc"); + "0: ipm %0\n" + " srl %0,28\n" + "1:\n" + EX_TABLE(0b, 1b) + : "+d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc"); return ccode; } diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h index 652ea3625f9d..9fa2ac13ac85 100644 --- a/drivers/s390/cio/ioasm.h +++ b/drivers/s390/cio/ioasm.h @@ -2,7 +2,7 @@ #define S390_CIO_IOASM_H #include <asm/chpid.h> -#include "schid.h" +#include <asm/schid.h> /* * TPI info structure diff --git a/drivers/s390/cio/isc.c b/drivers/s390/cio/isc.c new file mode 100644 index 000000000000..c592087be0f1 --- /dev/null +++ b/drivers/s390/cio/isc.c @@ -0,0 +1,68 @@ +/* + * Functions for registration of I/O interruption subclasses on s390. + * + * Copyright IBM Corp. 2008 + * Authors: Sebastian Ott <sebott@linux.vnet.ibm.com> + */ + +#include <linux/spinlock.h> +#include <linux/module.h> +#include <asm/isc.h> + +static unsigned int isc_refs[MAX_ISC + 1]; +static DEFINE_SPINLOCK(isc_ref_lock); + + +/** + * isc_register - register an I/O interruption subclass. + * @isc: I/O interruption subclass to register + * + * The number of users for @isc is increased. If this is the first user to + * register @isc, the corresponding I/O interruption subclass mask is enabled. + * + * Context: + * This function must not be called in interrupt context. + */ +void isc_register(unsigned int isc) +{ + if (isc > MAX_ISC) { + WARN_ON(1); + return; + } + + spin_lock(&isc_ref_lock); + if (isc_refs[isc] == 0) + ctl_set_bit(6, 31 - isc); + isc_refs[isc]++; + spin_unlock(&isc_ref_lock); +} +EXPORT_SYMBOL_GPL(isc_register); + +/** + * isc_unregister - unregister an I/O interruption subclass. + * @isc: I/O interruption subclass to unregister + * + * The number of users for @isc is decreased. If this is the last user to + * unregister @isc, the corresponding I/O interruption subclass mask is + * disabled. + * Note: This function must not be called if isc_register() hasn't been called + * before by the driver for @isc. + * + * Context: + * This function must not be called in interrupt context. + */ +void isc_unregister(unsigned int isc) +{ + spin_lock(&isc_ref_lock); + /* check for misuse */ + if (isc > MAX_ISC || isc_refs[isc] == 0) { + WARN_ON(1); + goto out_unlock; + } + if (isc_refs[isc] == 1) + ctl_clear_bit(6, 31 - isc); + isc_refs[isc]--; +out_unlock: + spin_unlock(&isc_ref_lock); +} +EXPORT_SYMBOL_GPL(isc_unregister); diff --git a/drivers/s390/cio/itcw.c b/drivers/s390/cio/itcw.c new file mode 100644 index 000000000000..17da9ab932ed --- /dev/null +++ b/drivers/s390/cio/itcw.c @@ -0,0 +1,327 @@ +/* + * Functions for incremental construction of fcx enabled I/O control blocks. + * + * Copyright IBM Corp. 2008 + * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/module.h> +#include <asm/fcx.h> +#include <asm/itcw.h> + +/** + * struct itcw - incremental tcw helper data type + * + * This structure serves as a handle for the incremental construction of a + * tcw and associated tccb, tsb, data tidaw-list plus an optional interrogate + * tcw and associated data. The data structures are contained inside a single + * contiguous buffer provided by the user. + * + * The itcw construction functions take care of overall data integrity: + * - reset unused fields to zero + * - fill in required pointers + * - ensure required alignment for data structures + * - prevent data structures to cross 4k-byte boundary where required + * - calculate tccb-related length fields + * - optionally provide ready-made interrogate tcw and associated structures + * + * Restrictions apply to the itcws created with these construction functions: + * - tida only supported for data address, not for tccb + * - only contiguous tidaw-lists (no ttic) + * - total number of bytes required per itcw may not exceed 4k bytes + * - either read or write operation (may not work with r=0 and w=0) + * + * Example: + * struct itcw *itcw; + * void *buffer; + * size_t size; + * + * size = itcw_calc_size(1, 2, 0); + * buffer = kmalloc(size, GFP_DMA); + * if (!buffer) + * return -ENOMEM; + * itcw = itcw_init(buffer, size, ITCW_OP_READ, 1, 2, 0); + * if (IS_ERR(itcw)) + * return PTR_ER(itcw); + * itcw_add_dcw(itcw, 0x2, 0, NULL, 0, 72); + * itcw_add_tidaw(itcw, 0, 0x30000, 20); + * itcw_add_tidaw(itcw, 0, 0x40000, 52); + * itcw_finalize(itcw); + * + */ +struct itcw { + struct tcw *tcw; + struct tcw *intrg_tcw; + int num_tidaws; + int max_tidaws; + int intrg_num_tidaws; + int intrg_max_tidaws; +}; + +/** + * itcw_get_tcw - return pointer to tcw associated with the itcw + * @itcw: address of the itcw + * + * Return pointer to the tcw associated with the itcw. + */ +struct tcw *itcw_get_tcw(struct itcw *itcw) +{ + return itcw->tcw; +} +EXPORT_SYMBOL(itcw_get_tcw); + +/** + * itcw_calc_size - return the size of an itcw with the given parameters + * @intrg: if non-zero, add an interrogate tcw + * @max_tidaws: maximum number of tidaws to be used for data addressing or zero + * if no tida is to be used. + * @intrg_max_tidaws: maximum number of tidaws to be used for data addressing + * by the interrogate tcw, if specified + * + * Calculate and return the number of bytes required to hold an itcw with the + * given parameters and assuming tccbs with maximum size. + * + * Note that the resulting size also contains bytes needed for alignment + * padding as well as padding to ensure that data structures don't cross a + * 4k-boundary where required. + */ +size_t itcw_calc_size(int intrg, int max_tidaws, int intrg_max_tidaws) +{ + size_t len; + + /* Main data. */ + len = sizeof(struct itcw); + len += /* TCW */ sizeof(struct tcw) + /* TCCB */ TCCB_MAX_SIZE + + /* TSB */ sizeof(struct tsb) + + /* TIDAL */ max_tidaws * sizeof(struct tidaw); + /* Interrogate data. */ + if (intrg) { + len += /* TCW */ sizeof(struct tcw) + /* TCCB */ TCCB_MAX_SIZE + + /* TSB */ sizeof(struct tsb) + + /* TIDAL */ intrg_max_tidaws * sizeof(struct tidaw); + } + /* Maximum required alignment padding. */ + len += /* Initial TCW */ 63 + /* Interrogate TCCB */ 7; + /* Maximum padding for structures that may not cross 4k boundary. */ + if ((max_tidaws > 0) || (intrg_max_tidaws > 0)) + len += max(max_tidaws, intrg_max_tidaws) * + sizeof(struct tidaw) - 1; + return len; +} +EXPORT_SYMBOL(itcw_calc_size); + +#define CROSS4K(x, l) (((x) & ~4095) != ((x + l) & ~4095)) + +static inline void *fit_chunk(addr_t *start, addr_t end, size_t len, + int align, int check_4k) +{ + addr_t addr; + + addr = ALIGN(*start, align); + if (check_4k && CROSS4K(addr, len)) { + addr = ALIGN(addr, 4096); + addr = ALIGN(addr, align); + } + if (addr + len > end) + return ERR_PTR(-ENOSPC); + *start = addr + len; + return (void *) addr; +} + +/** + * itcw_init - initialize incremental tcw data structure + * @buffer: address of buffer to use for data structures + * @size: number of bytes in buffer + * @op: %ITCW_OP_READ for a read operation tcw, %ITCW_OP_WRITE for a write + * operation tcw + * @intrg: if non-zero, add and initialize an interrogate tcw + * @max_tidaws: maximum number of tidaws to be used for data addressing or zero + * if no tida is to be used. + * @intrg_max_tidaws: maximum number of tidaws to be used for data addressing + * by the interrogate tcw, if specified + * + * Prepare the specified buffer to be used as an incremental tcw, i.e. a + * helper data structure that can be used to construct a valid tcw by + * successive calls to other helper functions. Note: the buffer needs to be + * located below the 2G address limit. The resulting tcw has the following + * restrictions: + * - no tccb tidal + * - input/output tidal is contiguous (no ttic) + * - total data should not exceed 4k + * - tcw specifies either read or write operation + * + * On success, return pointer to the resulting incremental tcw data structure, + * ERR_PTR otherwise. + */ +struct itcw *itcw_init(void *buffer, size_t size, int op, int intrg, + int max_tidaws, int intrg_max_tidaws) +{ + struct itcw *itcw; + void *chunk; + addr_t start; + addr_t end; + + /* Check for 2G limit. */ + start = (addr_t) buffer; + end = start + size; + if (end > (1 << 31)) + return ERR_PTR(-EINVAL); + memset(buffer, 0, size); + /* ITCW. */ + chunk = fit_chunk(&start, end, sizeof(struct itcw), 1, 0); + if (IS_ERR(chunk)) + return chunk; + itcw = chunk; + itcw->max_tidaws = max_tidaws; + itcw->intrg_max_tidaws = intrg_max_tidaws; + /* Main TCW. */ + chunk = fit_chunk(&start, end, sizeof(struct tcw), 64, 0); + if (IS_ERR(chunk)) + return chunk; + itcw->tcw = chunk; + tcw_init(itcw->tcw, (op == ITCW_OP_READ) ? 1 : 0, + (op == ITCW_OP_WRITE) ? 1 : 0); + /* Interrogate TCW. */ + if (intrg) { + chunk = fit_chunk(&start, end, sizeof(struct tcw), 64, 0); + if (IS_ERR(chunk)) + return chunk; + itcw->intrg_tcw = chunk; + tcw_init(itcw->intrg_tcw, 1, 0); + tcw_set_intrg(itcw->tcw, itcw->intrg_tcw); + } + /* Data TIDAL. */ + if (max_tidaws > 0) { + chunk = fit_chunk(&start, end, sizeof(struct tidaw) * + max_tidaws, 16, 1); + if (IS_ERR(chunk)) + return chunk; + tcw_set_data(itcw->tcw, chunk, 1); + } + /* Interrogate data TIDAL. */ + if (intrg && (intrg_max_tidaws > 0)) { + chunk = fit_chunk(&start, end, sizeof(struct tidaw) * + intrg_max_tidaws, 16, 1); + if (IS_ERR(chunk)) + return chunk; + tcw_set_data(itcw->intrg_tcw, chunk, 1); + } + /* TSB. */ + chunk = fit_chunk(&start, end, sizeof(struct tsb), 8, 0); + if (IS_ERR(chunk)) + return chunk; + tsb_init(chunk); + tcw_set_tsb(itcw->tcw, chunk); + /* Interrogate TSB. */ + if (intrg) { + chunk = fit_chunk(&start, end, sizeof(struct tsb), 8, 0); + if (IS_ERR(chunk)) + return chunk; + tsb_init(chunk); + tcw_set_tsb(itcw->intrg_tcw, chunk); + } + /* TCCB. */ + chunk = fit_chunk(&start, end, TCCB_MAX_SIZE, 8, 0); + if (IS_ERR(chunk)) + return chunk; + tccb_init(chunk, TCCB_MAX_SIZE, TCCB_SAC_DEFAULT); + tcw_set_tccb(itcw->tcw, chunk); + /* Interrogate TCCB. */ + if (intrg) { + chunk = fit_chunk(&start, end, TCCB_MAX_SIZE, 8, 0); + if (IS_ERR(chunk)) + return chunk; + tccb_init(chunk, TCCB_MAX_SIZE, TCCB_SAC_INTRG); + tcw_set_tccb(itcw->intrg_tcw, chunk); + tccb_add_dcw(chunk, TCCB_MAX_SIZE, DCW_CMD_INTRG, 0, NULL, + sizeof(struct dcw_intrg_data), 0); + tcw_finalize(itcw->intrg_tcw, 0); + } + return itcw; +} +EXPORT_SYMBOL(itcw_init); + +/** + * itcw_add_dcw - add a dcw to the itcw + * @itcw: address of the itcw + * @cmd: the dcw command + * @flags: flags for the dcw + * @cd: address of control data for this dcw or NULL if none is required + * @cd_count: number of control data bytes for this dcw + * @count: number of data bytes for this dcw + * + * Add a new dcw to the specified itcw by writing the dcw information specified + * by @cmd, @flags, @cd, @cd_count and @count to the tca of the tccb. Return + * a pointer to the newly added dcw on success or -%ENOSPC if the new dcw + * would exceed the available space. + * + * Note: the tcal field of the tccb header will be updated to reflect added + * content. + */ +struct dcw *itcw_add_dcw(struct itcw *itcw, u8 cmd, u8 flags, void *cd, + u8 cd_count, u32 count) +{ + return tccb_add_dcw(tcw_get_tccb(itcw->tcw), TCCB_MAX_SIZE, cmd, + flags, cd, cd_count, count); +} +EXPORT_SYMBOL(itcw_add_dcw); + +/** + * itcw_add_tidaw - add a tidaw to the itcw + * @itcw: address of the itcw + * @flags: flags for the new tidaw + * @addr: address value for the new tidaw + * @count: count value for the new tidaw + * + * Add a new tidaw to the input/output data tidaw-list of the specified itcw + * (depending on the value of the r-flag and w-flag). Return a pointer to + * the new tidaw on success or -%ENOSPC if the new tidaw would exceed the + * available space. + * + * Note: the tidaw-list is assumed to be contiguous with no ttics. The + * last-tidaw flag for the last tidaw in the list will be set by itcw_finalize. + */ +struct tidaw *itcw_add_tidaw(struct itcw *itcw, u8 flags, void *addr, u32 count) +{ + if (itcw->num_tidaws >= itcw->max_tidaws) + return ERR_PTR(-ENOSPC); + return tcw_add_tidaw(itcw->tcw, itcw->num_tidaws++, flags, addr, count); +} +EXPORT_SYMBOL(itcw_add_tidaw); + +/** + * itcw_set_data - set data address and tida flag of the itcw + * @itcw: address of the itcw + * @addr: the data address + * @use_tidal: zero of the data address specifies a contiguous block of data, + * non-zero if it specifies a list if tidaws. + * + * Set the input/output data address of the itcw (depending on the value of the + * r-flag and w-flag). If @use_tidal is non-zero, the corresponding tida flag + * is set as well. + */ +void itcw_set_data(struct itcw *itcw, void *addr, int use_tidal) +{ + tcw_set_data(itcw->tcw, addr, use_tidal); +} +EXPORT_SYMBOL(itcw_set_data); + +/** + * itcw_finalize - calculate length and count fields of the itcw + * @itcw: address of the itcw + * + * Calculate tcw input-/output-count and tccbl fields and add a tcat the tccb. + * In case input- or output-tida is used, the tidaw-list must be stored in + * continuous storage (no ttic). The tcal field in the tccb must be + * up-to-date. + */ +void itcw_finalize(struct itcw *itcw) +{ + tcw_finalize(itcw->tcw, itcw->num_tidaws); +} +EXPORT_SYMBOL(itcw_finalize); diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 445cf364e461..657940fcf87b 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -2001,21 +2001,21 @@ qdio_handle_activate_check(struct ccw_device *cdev, unsigned long intparm, irq_ptr = cdev->private->qdio_data; QDIO_DBF_TEXT2(1, trace, "ick2"); - sprintf(dbf_text,"%s", cdev->dev.bus_id); + sprintf(dbf_text,"%s", dev_name(&cdev->dev)); QDIO_DBF_TEXT2(1,trace,dbf_text); QDIO_DBF_HEX2(0,trace,&intparm,sizeof(int)); QDIO_DBF_HEX2(0,trace,&dstat,sizeof(int)); QDIO_DBF_HEX2(0,trace,&cstat,sizeof(int)); QDIO_PRINT_ERR("received check condition on activate " \ "queues on device %s (cs=x%x, ds=x%x).\n", - cdev->dev.bus_id, cstat, dstat); + dev_name(&cdev->dev), cstat, dstat); if (irq_ptr->no_input_qs) { q=irq_ptr->input_qs[0]; } else if (irq_ptr->no_output_qs) { q=irq_ptr->output_qs[0]; } else { QDIO_PRINT_ERR("oops... no queue registered for device %s!?\n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); goto omit_handler_call; } q->handler(q->cdev,QDIO_STATUS_ACTIVATE_CHECK_CONDITION| @@ -2045,7 +2045,7 @@ qdio_timeout_handler(struct ccw_device *cdev) char dbf_text[15]; QDIO_DBF_TEXT2(0, trace, "qtoh"); - sprintf(dbf_text, "%s", cdev->dev.bus_id); + sprintf(dbf_text, "%s", dev_name(&cdev->dev)); QDIO_DBF_TEXT2(0, trace, dbf_text); irq_ptr = cdev->private->qdio_data; @@ -2082,7 +2082,6 @@ qdio_timeout_handler(struct ccw_device *cdev) default: BUG(); } - ccw_device_set_timeout(cdev, 0); wake_up(&cdev->private->wait_q); } @@ -2095,23 +2094,23 @@ qdio_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) #ifdef CONFIG_QDIO_DEBUG QDIO_DBF_TEXT4(0, trace, "qint"); - sprintf(dbf_text, "%s", cdev->dev.bus_id); + sprintf(dbf_text, "%s", dev_name(&cdev->dev)); QDIO_DBF_TEXT4(0, trace, dbf_text); #endif /* CONFIG_QDIO_DEBUG */ if (!intparm) { QDIO_PRINT_ERR("got unsolicited interrupt in qdio " \ - "handler, device %s\n", cdev->dev.bus_id); + "handler, device %s\n", dev_name(&cdev->dev)); return; } irq_ptr = cdev->private->qdio_data; if (!irq_ptr) { QDIO_DBF_TEXT2(1, trace, "uint"); - sprintf(dbf_text,"%s", cdev->dev.bus_id); + sprintf(dbf_text,"%s", dev_name(&cdev->dev)); QDIO_DBF_TEXT2(1,trace,dbf_text); QDIO_PRINT_ERR("received interrupt on unused device %s!\n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); return; } @@ -2120,14 +2119,16 @@ qdio_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) switch (PTR_ERR(irb)) { case -EIO: QDIO_PRINT_ERR("i/o error on device %s\n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); + qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR); + wake_up(&cdev->private->wait_q); return; case -ETIMEDOUT: qdio_timeout_handler(cdev); return; default: QDIO_PRINT_ERR("unknown error state %ld on device %s\n", - PTR_ERR(irb), cdev->dev.bus_id); + PTR_ERR(irb), dev_name(&cdev->dev)); return; } } @@ -2139,8 +2140,8 @@ qdio_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) QDIO_DBF_TEXT4(0, trace, dbf_text); #endif /* CONFIG_QDIO_DEBUG */ - cstat = irb->scsw.cstat; - dstat = irb->scsw.dstat; + cstat = irb->scsw.cmd.cstat; + dstat = irb->scsw.cmd.dstat; switch (irq_ptr->state) { case QDIO_IRQ_STATE_INACTIVE: @@ -2165,7 +2166,7 @@ qdio_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) default: QDIO_PRINT_ERR("got interrupt for queues in state %d on " \ "device %s?!\n", - irq_ptr->state, cdev->dev.bus_id); + irq_ptr->state, dev_name(&cdev->dev)); } wake_up(&cdev->private->wait_q); @@ -2353,9 +2354,6 @@ tiqdio_check_chsc_availability(void) { char dbf_text[15]; - if (!css_characteristics_avail) - return -EIO; - /* Check for bit 41. */ if (!css_general_characteristics.aif) { QDIO_PRINT_WARN("Adapter interruption facility not " \ @@ -2667,15 +2665,15 @@ qdio_shutdown(struct ccw_device *cdev, int how) spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags); } else if (rc == 0) { qdio_set_state(irq_ptr, QDIO_IRQ_STATE_CLEANUP); - ccw_device_set_timeout(cdev, timeout); spin_unlock_irqrestore(get_ccwdev_lock(cdev),flags); - wait_event(cdev->private->wait_q, - irq_ptr->state == QDIO_IRQ_STATE_INACTIVE || - irq_ptr->state == QDIO_IRQ_STATE_ERR); + wait_event_interruptible_timeout(cdev->private->wait_q, + irq_ptr->state == QDIO_IRQ_STATE_INACTIVE || + irq_ptr->state == QDIO_IRQ_STATE_ERR, + timeout); } else { QDIO_PRINT_INFO("ccw_device_{halt,clear} returned %d for " - "device %s\n", result, cdev->dev.bus_id); + "device %s\n", result, dev_name(&cdev->dev)); spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags); result = rc; goto out; @@ -2692,7 +2690,6 @@ qdio_shutdown(struct ccw_device *cdev, int how) /* Ignore errors. */ qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE); - ccw_device_set_timeout(cdev, 0); out: up(&irq_ptr->setting_up_sema); return result; @@ -2907,13 +2904,10 @@ qdio_establish_handle_irq(struct ccw_device *cdev, int cstat, int dstat) QDIO_DBF_TEXT0(0,setup,dbf_text); QDIO_DBF_TEXT0(0,trace,dbf_text); - if (qdio_establish_irq_check_for_errors(cdev, cstat, dstat)) { - ccw_device_set_timeout(cdev, 0); + if (qdio_establish_irq_check_for_errors(cdev, cstat, dstat)) return; - } qdio_set_state(irq_ptr,QDIO_IRQ_STATE_ESTABLISHED); - ccw_device_set_timeout(cdev, 0); } int @@ -3196,8 +3190,6 @@ qdio_establish(struct qdio_initialize *init_data) irq_ptr->schid.ssid, irq_ptr->schid.sch_no, result, result2); result=result2; - if (result) - ccw_device_set_timeout(cdev, 0); } spin_unlock_irqrestore(get_ccwdev_lock(cdev),saveflags); @@ -3279,7 +3271,6 @@ qdio_activate(struct ccw_device *cdev, int flags) spin_lock_irqsave(get_ccwdev_lock(cdev),saveflags); - ccw_device_set_timeout(cdev, 0); ccw_device_set_options(cdev, CCWDEV_REPORT_ALL); result=ccw_device_start(cdev,&irq_ptr->ccw,QDIO_DOING_ACTIVATE, 0, DOIO_DENY_PREFETCH); @@ -3722,7 +3713,8 @@ tiqdio_register_thinints(void) char dbf_text[20]; tiqdio_ind = - s390_register_adapter_interrupt(&tiqdio_thinint_handler, NULL); + s390_register_adapter_interrupt(&tiqdio_thinint_handler, NULL, + TIQDIO_THININT_ISC); if (IS_ERR(tiqdio_ind)) { sprintf(dbf_text, "regthn%lx", PTR_ERR(tiqdio_ind)); QDIO_DBF_TEXT0(0,setup,dbf_text); @@ -3738,7 +3730,8 @@ static void tiqdio_unregister_thinints(void) { if (tiqdio_ind) - s390_unregister_adapter_interrupt(tiqdio_ind); + s390_unregister_adapter_interrupt(tiqdio_ind, + TIQDIO_THININT_ISC); } static int @@ -3899,6 +3892,7 @@ init_QDIO(void) qdio_mempool_alloc, qdio_mempool_free, NULL); + isc_register(QDIO_AIRQ_ISC); if (tiqdio_check_chsc_availability()) QDIO_PRINT_ERR("Not all CHSCs supported. Continuing.\n"); @@ -3911,6 +3905,7 @@ static void __exit cleanup_QDIO(void) { tiqdio_unregister_thinints(); + isc_unregister(QDIO_AIRQ_ISC); qdio_remove_procfs_entry(); qdio_release_qdio_memory(); qdio_unregister_dbf_views(); diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index c3df6b2c38b7..7656081a24d2 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -2,8 +2,8 @@ #define _CIO_QDIO_H #include <asm/page.h> - -#include "schid.h" +#include <asm/isc.h> +#include <asm/schid.h> #ifdef CONFIG_QDIO_DEBUG #define QDIO_VERBOSE_LEVEL 9 @@ -26,7 +26,7 @@ */ #define IQDIO_FILL_LEVEL_TO_POLL 4 -#define TIQDIO_THININT_ISC 3 +#define TIQDIO_THININT_ISC QDIO_AIRQ_ISC #define TIQDIO_DELAY_TARGET 0 #define QDIO_BUSY_BIT_PATIENCE 100 /* in microsecs */ #define QDIO_BUSY_BIT_GIVE_UP 10000000 /* 10 seconds */ diff --git a/drivers/s390/cio/schid.h b/drivers/s390/cio/schid.h deleted file mode 100644 index 54328fec5ade..000000000000 --- a/drivers/s390/cio/schid.h +++ /dev/null @@ -1,26 +0,0 @@ -#ifndef S390_SCHID_H -#define S390_SCHID_H - -struct subchannel_id { - __u32 reserved:13; - __u32 ssid:2; - __u32 one:1; - __u32 sch_no:16; -} __attribute__ ((packed,aligned(4))); - - -/* Helper function for sane state of pre-allocated subchannel_id. */ -static inline void -init_subchannel_id(struct subchannel_id *schid) -{ - memset(schid, 0, sizeof(struct subchannel_id)); - schid->one = 1; -} - -static inline int -schid_equal(struct subchannel_id *schid1, struct subchannel_id *schid2) -{ - return !memcmp(schid1, schid2, sizeof(struct subchannel_id)); -} - -#endif /* S390_SCHID_H */ diff --git a/drivers/s390/cio/scsw.c b/drivers/s390/cio/scsw.c new file mode 100644 index 000000000000..f8da25ab576d --- /dev/null +++ b/drivers/s390/cio/scsw.c @@ -0,0 +1,843 @@ +/* + * Helper functions for scsw access. + * + * Copyright IBM Corp. 2008 + * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <asm/cio.h> +#include "css.h" +#include "chsc.h" + +/** + * scsw_is_tm - check for transport mode scsw + * @scsw: pointer to scsw + * + * Return non-zero if the specified scsw is a transport mode scsw, zero + * otherwise. + */ +int scsw_is_tm(union scsw *scsw) +{ + return css_general_characteristics.fcx && (scsw->tm.x == 1); +} +EXPORT_SYMBOL(scsw_is_tm); + +/** + * scsw_key - return scsw key field + * @scsw: pointer to scsw + * + * Return the value of the key field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_key(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.key; + else + return scsw->cmd.key; +} +EXPORT_SYMBOL(scsw_key); + +/** + * scsw_eswf - return scsw eswf field + * @scsw: pointer to scsw + * + * Return the value of the eswf field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_eswf(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.eswf; + else + return scsw->cmd.eswf; +} +EXPORT_SYMBOL(scsw_eswf); + +/** + * scsw_cc - return scsw cc field + * @scsw: pointer to scsw + * + * Return the value of the cc field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_cc(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.cc; + else + return scsw->cmd.cc; +} +EXPORT_SYMBOL(scsw_cc); + +/** + * scsw_ectl - return scsw ectl field + * @scsw: pointer to scsw + * + * Return the value of the ectl field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_ectl(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.ectl; + else + return scsw->cmd.ectl; +} +EXPORT_SYMBOL(scsw_ectl); + +/** + * scsw_pno - return scsw pno field + * @scsw: pointer to scsw + * + * Return the value of the pno field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_pno(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.pno; + else + return scsw->cmd.pno; +} +EXPORT_SYMBOL(scsw_pno); + +/** + * scsw_fctl - return scsw fctl field + * @scsw: pointer to scsw + * + * Return the value of the fctl field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_fctl(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.fctl; + else + return scsw->cmd.fctl; +} +EXPORT_SYMBOL(scsw_fctl); + +/** + * scsw_actl - return scsw actl field + * @scsw: pointer to scsw + * + * Return the value of the actl field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_actl(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.actl; + else + return scsw->cmd.actl; +} +EXPORT_SYMBOL(scsw_actl); + +/** + * scsw_stctl - return scsw stctl field + * @scsw: pointer to scsw + * + * Return the value of the stctl field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_stctl(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.stctl; + else + return scsw->cmd.stctl; +} +EXPORT_SYMBOL(scsw_stctl); + +/** + * scsw_dstat - return scsw dstat field + * @scsw: pointer to scsw + * + * Return the value of the dstat field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_dstat(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.dstat; + else + return scsw->cmd.dstat; +} +EXPORT_SYMBOL(scsw_dstat); + +/** + * scsw_cstat - return scsw cstat field + * @scsw: pointer to scsw + * + * Return the value of the cstat field of the specified scsw, regardless of + * whether it is a transport mode or command mode scsw. + */ +u32 scsw_cstat(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw->tm.cstat; + else + return scsw->cmd.cstat; +} +EXPORT_SYMBOL(scsw_cstat); + +/** + * scsw_cmd_is_valid_key - check key field validity + * @scsw: pointer to scsw + * + * Return non-zero if the key field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_key(union scsw *scsw) +{ + return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_key); + +/** + * scsw_cmd_is_valid_sctl - check fctl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the fctl field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_sctl(union scsw *scsw) +{ + return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_sctl); + +/** + * scsw_cmd_is_valid_eswf - check eswf field validity + * @scsw: pointer to scsw + * + * Return non-zero if the eswf field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_eswf(union scsw *scsw) +{ + return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_eswf); + +/** + * scsw_cmd_is_valid_cc - check cc field validity + * @scsw: pointer to scsw + * + * Return non-zero if the cc field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_cc(union scsw *scsw) +{ + return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) && + (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_cc); + +/** + * scsw_cmd_is_valid_fmt - check fmt field validity + * @scsw: pointer to scsw + * + * Return non-zero if the fmt field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_fmt(union scsw *scsw) +{ + return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_fmt); + +/** + * scsw_cmd_is_valid_pfch - check pfch field validity + * @scsw: pointer to scsw + * + * Return non-zero if the pfch field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_pfch(union scsw *scsw) +{ + return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_pfch); + +/** + * scsw_cmd_is_valid_isic - check isic field validity + * @scsw: pointer to scsw + * + * Return non-zero if the isic field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_isic(union scsw *scsw) +{ + return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_isic); + +/** + * scsw_cmd_is_valid_alcc - check alcc field validity + * @scsw: pointer to scsw + * + * Return non-zero if the alcc field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_alcc(union scsw *scsw) +{ + return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_alcc); + +/** + * scsw_cmd_is_valid_ssi - check ssi field validity + * @scsw: pointer to scsw + * + * Return non-zero if the ssi field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_ssi(union scsw *scsw) +{ + return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_ssi); + +/** + * scsw_cmd_is_valid_zcc - check zcc field validity + * @scsw: pointer to scsw + * + * Return non-zero if the zcc field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_zcc(union scsw *scsw) +{ + return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) && + (scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_zcc); + +/** + * scsw_cmd_is_valid_ectl - check ectl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the ectl field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_ectl(union scsw *scsw) +{ + return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && + !(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) && + (scsw->cmd.stctl & SCSW_STCTL_ALERT_STATUS); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_ectl); + +/** + * scsw_cmd_is_valid_pno - check pno field validity + * @scsw: pointer to scsw + * + * Return non-zero if the pno field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_pno(union scsw *scsw) +{ + return (scsw->cmd.fctl != 0) && + (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && + (!(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) || + ((scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) && + (scsw->cmd.actl & SCSW_ACTL_SUSPENDED))); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_pno); + +/** + * scsw_cmd_is_valid_fctl - check fctl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the fctl field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_fctl(union scsw *scsw) +{ + /* Only valid if pmcw.dnv == 1*/ + return 1; +} +EXPORT_SYMBOL(scsw_cmd_is_valid_fctl); + +/** + * scsw_cmd_is_valid_actl - check actl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the actl field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_actl(union scsw *scsw) +{ + /* Only valid if pmcw.dnv == 1*/ + return 1; +} +EXPORT_SYMBOL(scsw_cmd_is_valid_actl); + +/** + * scsw_cmd_is_valid_stctl - check stctl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the stctl field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_stctl(union scsw *scsw) +{ + /* Only valid if pmcw.dnv == 1*/ + return 1; +} +EXPORT_SYMBOL(scsw_cmd_is_valid_stctl); + +/** + * scsw_cmd_is_valid_dstat - check dstat field validity + * @scsw: pointer to scsw + * + * Return non-zero if the dstat field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_dstat(union scsw *scsw) +{ + return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && + (scsw->cmd.cc != 3); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_dstat); + +/** + * scsw_cmd_is_valid_cstat - check cstat field validity + * @scsw: pointer to scsw + * + * Return non-zero if the cstat field of the specified command mode scsw is + * valid, zero otherwise. + */ +int scsw_cmd_is_valid_cstat(union scsw *scsw) +{ + return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) && + (scsw->cmd.cc != 3); +} +EXPORT_SYMBOL(scsw_cmd_is_valid_cstat); + +/** + * scsw_tm_is_valid_key - check key field validity + * @scsw: pointer to scsw + * + * Return non-zero if the key field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_key(union scsw *scsw) +{ + return (scsw->tm.fctl & SCSW_FCTL_START_FUNC); +} +EXPORT_SYMBOL(scsw_tm_is_valid_key); + +/** + * scsw_tm_is_valid_eswf - check eswf field validity + * @scsw: pointer to scsw + * + * Return non-zero if the eswf field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_eswf(union scsw *scsw) +{ + return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND); +} +EXPORT_SYMBOL(scsw_tm_is_valid_eswf); + +/** + * scsw_tm_is_valid_cc - check cc field validity + * @scsw: pointer to scsw + * + * Return non-zero if the cc field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_cc(union scsw *scsw) +{ + return (scsw->tm.fctl & SCSW_FCTL_START_FUNC) && + (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND); +} +EXPORT_SYMBOL(scsw_tm_is_valid_cc); + +/** + * scsw_tm_is_valid_fmt - check fmt field validity + * @scsw: pointer to scsw + * + * Return non-zero if the fmt field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_fmt(union scsw *scsw) +{ + return 1; +} +EXPORT_SYMBOL(scsw_tm_is_valid_fmt); + +/** + * scsw_tm_is_valid_x - check x field validity + * @scsw: pointer to scsw + * + * Return non-zero if the x field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_x(union scsw *scsw) +{ + return 1; +} +EXPORT_SYMBOL(scsw_tm_is_valid_x); + +/** + * scsw_tm_is_valid_q - check q field validity + * @scsw: pointer to scsw + * + * Return non-zero if the q field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_q(union scsw *scsw) +{ + return 1; +} +EXPORT_SYMBOL(scsw_tm_is_valid_q); + +/** + * scsw_tm_is_valid_ectl - check ectl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the ectl field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_ectl(union scsw *scsw) +{ + return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && + !(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) && + (scsw->tm.stctl & SCSW_STCTL_ALERT_STATUS); +} +EXPORT_SYMBOL(scsw_tm_is_valid_ectl); + +/** + * scsw_tm_is_valid_pno - check pno field validity + * @scsw: pointer to scsw + * + * Return non-zero if the pno field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_pno(union scsw *scsw) +{ + return (scsw->tm.fctl != 0) && + (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && + (!(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) || + ((scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) && + (scsw->tm.actl & SCSW_ACTL_SUSPENDED))); +} +EXPORT_SYMBOL(scsw_tm_is_valid_pno); + +/** + * scsw_tm_is_valid_fctl - check fctl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the fctl field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_fctl(union scsw *scsw) +{ + /* Only valid if pmcw.dnv == 1*/ + return 1; +} +EXPORT_SYMBOL(scsw_tm_is_valid_fctl); + +/** + * scsw_tm_is_valid_actl - check actl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the actl field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_actl(union scsw *scsw) +{ + /* Only valid if pmcw.dnv == 1*/ + return 1; +} +EXPORT_SYMBOL(scsw_tm_is_valid_actl); + +/** + * scsw_tm_is_valid_stctl - check stctl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the stctl field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_stctl(union scsw *scsw) +{ + /* Only valid if pmcw.dnv == 1*/ + return 1; +} +EXPORT_SYMBOL(scsw_tm_is_valid_stctl); + +/** + * scsw_tm_is_valid_dstat - check dstat field validity + * @scsw: pointer to scsw + * + * Return non-zero if the dstat field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_dstat(union scsw *scsw) +{ + return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && + (scsw->tm.cc != 3); +} +EXPORT_SYMBOL(scsw_tm_is_valid_dstat); + +/** + * scsw_tm_is_valid_cstat - check cstat field validity + * @scsw: pointer to scsw + * + * Return non-zero if the cstat field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_cstat(union scsw *scsw) +{ + return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) && + (scsw->tm.cc != 3); +} +EXPORT_SYMBOL(scsw_tm_is_valid_cstat); + +/** + * scsw_tm_is_valid_fcxs - check fcxs field validity + * @scsw: pointer to scsw + * + * Return non-zero if the fcxs field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_fcxs(union scsw *scsw) +{ + return 1; +} +EXPORT_SYMBOL(scsw_tm_is_valid_fcxs); + +/** + * scsw_tm_is_valid_schxs - check schxs field validity + * @scsw: pointer to scsw + * + * Return non-zero if the schxs field of the specified transport mode scsw is + * valid, zero otherwise. + */ +int scsw_tm_is_valid_schxs(union scsw *scsw) +{ + return (scsw->tm.cstat & (SCHN_STAT_PROG_CHECK | + SCHN_STAT_INTF_CTRL_CHK | + SCHN_STAT_PROT_CHECK | + SCHN_STAT_CHN_DATA_CHK)); +} +EXPORT_SYMBOL(scsw_tm_is_valid_schxs); + +/** + * scsw_is_valid_actl - check actl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the actl field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_actl(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_actl(scsw); + else + return scsw_cmd_is_valid_actl(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_actl); + +/** + * scsw_is_valid_cc - check cc field validity + * @scsw: pointer to scsw + * + * Return non-zero if the cc field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_cc(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_cc(scsw); + else + return scsw_cmd_is_valid_cc(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_cc); + +/** + * scsw_is_valid_cstat - check cstat field validity + * @scsw: pointer to scsw + * + * Return non-zero if the cstat field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_cstat(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_cstat(scsw); + else + return scsw_cmd_is_valid_cstat(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_cstat); + +/** + * scsw_is_valid_dstat - check dstat field validity + * @scsw: pointer to scsw + * + * Return non-zero if the dstat field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_dstat(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_dstat(scsw); + else + return scsw_cmd_is_valid_dstat(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_dstat); + +/** + * scsw_is_valid_ectl - check ectl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the ectl field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_ectl(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_ectl(scsw); + else + return scsw_cmd_is_valid_ectl(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_ectl); + +/** + * scsw_is_valid_eswf - check eswf field validity + * @scsw: pointer to scsw + * + * Return non-zero if the eswf field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_eswf(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_eswf(scsw); + else + return scsw_cmd_is_valid_eswf(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_eswf); + +/** + * scsw_is_valid_fctl - check fctl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the fctl field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_fctl(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_fctl(scsw); + else + return scsw_cmd_is_valid_fctl(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_fctl); + +/** + * scsw_is_valid_key - check key field validity + * @scsw: pointer to scsw + * + * Return non-zero if the key field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_key(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_key(scsw); + else + return scsw_cmd_is_valid_key(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_key); + +/** + * scsw_is_valid_pno - check pno field validity + * @scsw: pointer to scsw + * + * Return non-zero if the pno field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_pno(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_pno(scsw); + else + return scsw_cmd_is_valid_pno(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_pno); + +/** + * scsw_is_valid_stctl - check stctl field validity + * @scsw: pointer to scsw + * + * Return non-zero if the stctl field of the specified scsw is valid, + * regardless of whether it is a transport mode or command mode scsw. + * Return zero if the field does not contain a valid value. + */ +int scsw_is_valid_stctl(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_valid_stctl(scsw); + else + return scsw_cmd_is_valid_stctl(scsw); +} +EXPORT_SYMBOL(scsw_is_valid_stctl); + +/** + * scsw_cmd_is_solicited - check for solicited scsw + * @scsw: pointer to scsw + * + * Return non-zero if the command mode scsw indicates that the associated + * status condition is solicited, zero if it is unsolicited. + */ +int scsw_cmd_is_solicited(union scsw *scsw) +{ + return (scsw->cmd.cc != 0) || (scsw->cmd.stctl != + (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)); +} +EXPORT_SYMBOL(scsw_cmd_is_solicited); + +/** + * scsw_tm_is_solicited - check for solicited scsw + * @scsw: pointer to scsw + * + * Return non-zero if the transport mode scsw indicates that the associated + * status condition is solicited, zero if it is unsolicited. + */ +int scsw_tm_is_solicited(union scsw *scsw) +{ + return (scsw->tm.cc != 0) || (scsw->tm.stctl != + (SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS)); +} +EXPORT_SYMBOL(scsw_tm_is_solicited); + +/** + * scsw_is_solicited - check for solicited scsw + * @scsw: pointer to scsw + * + * Return non-zero if the transport or command mode scsw indicates that the + * associated status condition is solicited, zero if it is unsolicited. + */ +int scsw_is_solicited(union scsw *scsw) +{ + if (scsw_is_tm(scsw)) + return scsw_tm_is_solicited(scsw); + else + return scsw_cmd_is_solicited(scsw); +} +EXPORT_SYMBOL(scsw_is_solicited); diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index a1ab3e3efd11..326db1e827c4 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -34,13 +34,15 @@ #include <linux/mutex.h> #include <asm/s390_rdev.h> #include <asm/reset.h> +#include <linux/hrtimer.h> +#include <linux/ktime.h> #include "ap_bus.h" /* Some prototypes. */ static void ap_scan_bus(struct work_struct *); static void ap_poll_all(unsigned long); -static void ap_poll_timeout(unsigned long); +static enum hrtimer_restart ap_poll_timeout(struct hrtimer *); static int ap_poll_thread_start(void); static void ap_poll_thread_stop(void); static void ap_request_timeout(unsigned long); @@ -80,12 +82,15 @@ static DECLARE_WORK(ap_config_work, ap_scan_bus); /* * Tasklet & timer for AP request polling. */ -static struct timer_list ap_poll_timer = TIMER_INITIALIZER(ap_poll_timeout,0,0); static DECLARE_TASKLET(ap_tasklet, ap_poll_all, 0); static atomic_t ap_poll_requests = ATOMIC_INIT(0); static DECLARE_WAIT_QUEUE_HEAD(ap_poll_wait); static struct task_struct *ap_poll_kthread = NULL; static DEFINE_MUTEX(ap_poll_thread_mutex); +static struct hrtimer ap_poll_timer; +/* In LPAR poll with 4kHz frequency. Poll every 250000 nanoseconds. + * If z/VM change to 1500000 nanoseconds to adjust to z/VM polling.*/ +static unsigned long long poll_timeout = 250000; /** * ap_intructions_available() - Test if AP instructions are available. @@ -636,11 +641,39 @@ static ssize_t ap_poll_thread_store(struct bus_type *bus, static BUS_ATTR(poll_thread, 0644, ap_poll_thread_show, ap_poll_thread_store); +static ssize_t poll_timeout_show(struct bus_type *bus, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%llu\n", poll_timeout); +} + +static ssize_t poll_timeout_store(struct bus_type *bus, const char *buf, + size_t count) +{ + unsigned long long time; + ktime_t hr_time; + + /* 120 seconds = maximum poll interval */ + if (sscanf(buf, "%llu\n", &time) != 1 || time < 1 || time > 120000000000) + return -EINVAL; + poll_timeout = time; + hr_time = ktime_set(0, poll_timeout); + + if (!hrtimer_is_queued(&ap_poll_timer) || + !hrtimer_forward(&ap_poll_timer, ap_poll_timer.expires, hr_time)) { + ap_poll_timer.expires = hr_time; + hrtimer_start(&ap_poll_timer, hr_time, HRTIMER_MODE_ABS); + } + return count; +} + +static BUS_ATTR(poll_timeout, 0644, poll_timeout_show, poll_timeout_store); + static struct bus_attribute *const ap_bus_attrs[] = { &bus_attr_ap_domain, &bus_attr_config_time, &bus_attr_poll_thread, - NULL + &bus_attr_poll_timeout, + NULL, }; /** @@ -859,8 +892,8 @@ static void ap_scan_bus(struct work_struct *unused) ap_dev->device.bus = &ap_bus_type; ap_dev->device.parent = ap_root_device; - snprintf(ap_dev->device.bus_id, BUS_ID_SIZE, "card%02x", - AP_QID_DEVICE(ap_dev->qid)); + dev_set_name(&ap_dev->device, "card%02x", + AP_QID_DEVICE(ap_dev->qid)); ap_dev->device.release = ap_device_release; rc = device_register(&ap_dev->device); if (rc) { @@ -895,9 +928,10 @@ ap_config_timeout(unsigned long ptr) */ static inline void ap_schedule_poll_timer(void) { - if (timer_pending(&ap_poll_timer)) + if (hrtimer_is_queued(&ap_poll_timer)) return; - mod_timer(&ap_poll_timer, jiffies + AP_POLL_TIME); + hrtimer_start(&ap_poll_timer, ktime_set(0, poll_timeout), + HRTIMER_MODE_ABS); } /** @@ -1115,13 +1149,14 @@ EXPORT_SYMBOL(ap_cancel_message); /** * ap_poll_timeout(): AP receive polling for finished AP requests. - * @unused: Unused variable. + * @unused: Unused pointer. * - * Schedules the AP tasklet. + * Schedules the AP tasklet using a high resolution timer. */ -static void ap_poll_timeout(unsigned long unused) +static enum hrtimer_restart ap_poll_timeout(struct hrtimer *unused) { tasklet_schedule(&ap_tasklet); + return HRTIMER_NORESTART; } /** @@ -1344,6 +1379,14 @@ int __init ap_module_init(void) ap_config_timer.expires = jiffies + ap_config_time * HZ; add_timer(&ap_config_timer); + /* Setup the high resultion poll timer. + * If we are running under z/VM adjust polling to z/VM polling rate. + */ + if (MACHINE_IS_VM) + poll_timeout = 1500000; + hrtimer_init(&ap_poll_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); + ap_poll_timer.function = ap_poll_timeout; + /* Start the low priority AP bus poll thread. */ if (ap_thread_flag) { rc = ap_poll_thread_start(); @@ -1355,7 +1398,7 @@ int __init ap_module_init(void) out_work: del_timer_sync(&ap_config_timer); - del_timer_sync(&ap_poll_timer); + hrtimer_cancel(&ap_poll_timer); destroy_workqueue(ap_work_queue); out_root: s390_root_dev_unregister(ap_root_device); @@ -1386,7 +1429,7 @@ void ap_module_exit(void) ap_reset_domain(); ap_poll_thread_stop(); del_timer_sync(&ap_config_timer); - del_timer_sync(&ap_poll_timer); + hrtimer_cancel(&ap_poll_timer); destroy_workqueue(ap_work_queue); tasklet_kill(&ap_tasklet); s390_root_dev_unregister(ap_root_device); diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index 5ab34340919b..3d1160e9e5a4 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -23,6 +23,7 @@ #include <asm/kvm_virtio.h> #include <asm/setup.h> #include <asm/s390_ext.h> +#include <asm/s390_rdev.h> #define VIRTIO_SUBCODE_64 0x0D00 @@ -236,10 +237,7 @@ static struct virtio_config_ops kvm_vq_configspace_ops = { * The root device for the kvm virtio devices. * This makes them appear as /sys/devices/kvm_s390/0,1,2 not /sys/devices/0,1,2. */ -static struct device kvm_root = { - .parent = NULL, - .bus_id = "kvm_s390", -}; +static struct device *kvm_root; /* * adds a new device and register it with virtio @@ -256,7 +254,7 @@ static void add_kvm_device(struct kvm_device_desc *d, unsigned int offset) return; } - kdev->vdev.dev.parent = &kvm_root; + kdev->vdev.dev.parent = kvm_root; kdev->vdev.id.device = d->type; kdev->vdev.config = &kvm_vq_configspace_ops; kdev->desc = d; @@ -312,15 +310,16 @@ static int __init kvm_devices_init(void) if (!MACHINE_IS_KVM) return -ENODEV; - rc = device_register(&kvm_root); - if (rc) { + kvm_root = s390_root_dev_register("kvm_s390"); + if (IS_ERR(kvm_root)) { + rc = PTR_ERR(kvm_root); printk(KERN_ERR "Could not register kvm_s390 root device"); return rc; } rc = vmem_add_mapping(PFN_PHYS(max_pfn), PAGE_SIZE); if (rc) { - device_unregister(&kvm_root); + s390_root_dev_unregister(kvm_root); return rc; } diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c index 04a1d7bf678c..ff7bd263f33a 100644 --- a/drivers/s390/net/claw.c +++ b/drivers/s390/net/claw.c @@ -313,7 +313,7 @@ claw_probe(struct ccwgroup_device *cgdev) probe_error(cgdev); put_device(&cgdev->dev); printk(KERN_WARNING "Out of memory %s %s Exit Line %d \n", - cgdev->cdev[0]->dev.bus_id,__func__,__LINE__); + dev_name(&cgdev->cdev[0]->dev),__func__,__LINE__); CLAW_DBF_TEXT_(2,setup,"probex%d",-ENOMEM); return -ENOMEM; } @@ -323,7 +323,7 @@ claw_probe(struct ccwgroup_device *cgdev) probe_error(cgdev); put_device(&cgdev->dev); printk(KERN_WARNING "Out of memory %s %s Exit Line %d \n", - cgdev->cdev[0]->dev.bus_id,__func__,__LINE__); + dev_name(&cgdev->cdev[0]->dev),__func__,__LINE__); CLAW_DBF_TEXT_(2,setup,"probex%d",-ENOMEM); return -ENOMEM; } @@ -340,11 +340,12 @@ claw_probe(struct ccwgroup_device *cgdev) probe_error(cgdev); put_device(&cgdev->dev); printk(KERN_WARNING "add_files failed %s %s Exit Line %d \n", - cgdev->cdev[0]->dev.bus_id,__func__,__LINE__); + dev_name(&cgdev->cdev[0]->dev),__func__,__LINE__); CLAW_DBF_TEXT_(2,setup,"probex%d",rc); return rc; } - printk(KERN_INFO "claw: sysfs files added for %s\n",cgdev->cdev[0]->dev.bus_id); + printk(KERN_INFO "claw: sysfs files added for %s\n", + dev_name(&cgdev->cdev[0]->dev)); privptr->p_env->p_priv = privptr; cgdev->cdev[0]->handler = claw_irq_handler; cgdev->cdev[1]->handler = claw_irq_handler; @@ -703,7 +704,8 @@ claw_irq_handler(struct ccw_device *cdev, if (!cdev->dev.driver_data) { printk(KERN_WARNING "claw: unsolicited interrupt for device:" "%s received c-%02x d-%02x\n", - cdev->dev.bus_id,irb->scsw.cstat, irb->scsw.dstat); + dev_name(&cdev->dev), irb->scsw.cmd.cstat, + irb->scsw.cmd.dstat); #ifdef FUNCTRACE printk(KERN_INFO "claw: %s() " "exit on line %d\n",__func__,__LINE__); @@ -720,7 +722,7 @@ claw_irq_handler(struct ccw_device *cdev, p_ch = &privptr->channel[WRITE]; else { printk(KERN_WARNING "claw: Can't determine channel for " - "interrupt, device %s\n", cdev->dev.bus_id); + "interrupt, device %s\n", dev_name(&cdev->dev)); CLAW_DBF_TEXT(2,trace,"badchan"); return; } @@ -732,22 +734,23 @@ claw_irq_handler(struct ccw_device *cdev, #ifdef IOTRACE printk(KERN_INFO "%s: interrupt for device: %04x " "received c-%02x d-%02x state-%02x\n", - dev->name, p_ch->devno, irb->scsw.cstat, - irb->scsw.dstat, p_ch->claw_state); + dev->name, p_ch->devno, irb->scsw.cmd.cstat, + irb->scsw.cmd.dstat, p_ch->claw_state); #endif /* Copy interruption response block. */ memcpy(p_ch->irb, irb, sizeof(struct irb)); /* Check for good subchannel return code, otherwise error message */ - if (irb->scsw.cstat && !(irb->scsw.cstat & SCHN_STAT_PCI)) { + if (irb->scsw.cmd.cstat && !(irb->scsw.cmd.cstat & SCHN_STAT_PCI)) { printk(KERN_INFO "%s: subchannel check for device: %04x -" " Sch Stat %02x Dev Stat %02x CPA - %04x\n", dev->name, p_ch->devno, - irb->scsw.cstat, irb->scsw.dstat,irb->scsw.cpa); + irb->scsw.cmd.cstat, irb->scsw.cmd.dstat, + irb->scsw.cmd.cpa); #ifdef IOTRACE dumpit((char *)irb,sizeof(struct irb)); - dumpit((char *)(unsigned long)irb->scsw.cpa, + dumpit((char *)(unsigned long)irb->scsw.cmd.cpa, sizeof(struct ccw1)); #endif #ifdef FUNCTRACE @@ -759,22 +762,24 @@ claw_irq_handler(struct ccw_device *cdev, } /* Check the reason-code of a unit check */ - if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) ccw_check_unit_check(p_ch, irb->ecw[0]); - } /* State machine to bring the connection up, down and to restart */ - p_ch->last_dstat = irb->scsw.dstat; + p_ch->last_dstat = irb->scsw.cmd.dstat; switch (p_ch->claw_state) { case CLAW_STOP:/* HALT_IO by claw_release (halt sequence) */ #ifdef DEBUGMSG printk(KERN_INFO "%s: CLAW_STOP enter\n", dev->name); #endif - if (!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || - (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || - (p_ch->irb->scsw.stctl == - (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { + if (!((p_ch->irb->scsw.cmd.stctl & + SCSW_STCTL_SEC_STATUS) || + (p_ch->irb->scsw.cmd.stctl == + SCSW_STCTL_STATUS_PEND) || + (p_ch->irb->scsw.cmd.stctl == + (SCSW_STCTL_ALERT_STATUS | + SCSW_STCTL_STATUS_PEND)))) { #ifdef FUNCTRACE printk(KERN_INFO "%s:%s Exit on line %d\n", dev->name,__func__,__LINE__); @@ -798,10 +803,13 @@ claw_irq_handler(struct ccw_device *cdev, printk(KERN_INFO "%s: process CLAW_STAT_HALT_IO\n", dev->name); #endif - if (!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || - (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || - (p_ch->irb->scsw.stctl == - (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { + if (!((p_ch->irb->scsw.cmd.stctl & + SCSW_STCTL_SEC_STATUS) || + (p_ch->irb->scsw.cmd.stctl == + SCSW_STCTL_STATUS_PEND) || + (p_ch->irb->scsw.cmd.stctl == + (SCSW_STCTL_ALERT_STATUS | + SCSW_STCTL_STATUS_PEND)))) { #ifdef FUNCTRACE printk(KERN_INFO "%s:%s Exit on line %d\n", dev->name,__func__,__LINE__); @@ -827,9 +835,9 @@ claw_irq_handler(struct ccw_device *cdev, printk(KERN_WARNING "claw: unsolicited " "interrupt for device:" "%s received c-%02x d-%02x\n", - cdev->dev.bus_id, - irb->scsw.cstat, - irb->scsw.dstat); + dev_name(&cdev->dev), + irb->scsw.cmd.cstat, + irb->scsw.cmd.dstat); return; } #ifdef DEBUGMSG @@ -844,7 +852,7 @@ claw_irq_handler(struct ccw_device *cdev, return; case CLAW_START_READ: CLAW_DBF_TEXT(4,trace,"ReadIRQ"); - if (p_ch->irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { + if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { clear_bit(0, (void *)&p_ch->IO_active); if ((p_ch->irb->ecw[0] & 0x41) == 0x41 || (p_ch->irb->ecw[0] & 0x40) == 0x40 || @@ -863,8 +871,8 @@ claw_irq_handler(struct ccw_device *cdev, CLAW_DBF_TEXT(4,trace,"notrdy"); return; } - if ((p_ch->irb->scsw.cstat & SCHN_STAT_PCI) && - (p_ch->irb->scsw.dstat==0)) { + if ((p_ch->irb->scsw.cmd.cstat & SCHN_STAT_PCI) && + (p_ch->irb->scsw.cmd.dstat == 0)) { if (test_and_set_bit(CLAW_BH_ACTIVE, (void *)&p_ch->flag_a) == 0) { tasklet_schedule(&p_ch->tasklet); @@ -879,10 +887,13 @@ claw_irq_handler(struct ccw_device *cdev, CLAW_DBF_TEXT(4,trace,"PCI_read"); return; } - if(!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || - (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || - (p_ch->irb->scsw.stctl == - (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { + if (!((p_ch->irb->scsw.cmd.stctl & + SCSW_STCTL_SEC_STATUS) || + (p_ch->irb->scsw.cmd.stctl == + SCSW_STCTL_STATUS_PEND) || + (p_ch->irb->scsw.cmd.stctl == + (SCSW_STCTL_ALERT_STATUS | + SCSW_STCTL_STATUS_PEND)))) { #ifdef FUNCTRACE printk(KERN_INFO "%s:%s Exit on line %d\n", dev->name,__func__,__LINE__); @@ -911,7 +922,7 @@ claw_irq_handler(struct ccw_device *cdev, CLAW_DBF_TEXT(4,trace,"RdIRQXit"); return; case CLAW_START_WRITE: - if (p_ch->irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { + if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { printk(KERN_INFO "%s: Unit Check Occured in " "write channel\n",dev->name); clear_bit(0, (void *)&p_ch->IO_active); @@ -934,16 +945,19 @@ claw_irq_handler(struct ccw_device *cdev, CLAW_DBF_TEXT(4,trace,"rstrtwrt"); return; } - if (p_ch->irb->scsw.dstat & DEV_STAT_UNIT_EXCEP) { + if (p_ch->irb->scsw.cmd.dstat & DEV_STAT_UNIT_EXCEP) { clear_bit(0, (void *)&p_ch->IO_active); printk(KERN_INFO "%s: Unit Exception " "Occured in write channel\n", dev->name); } - if(!((p_ch->irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || - (p_ch->irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || - (p_ch->irb->scsw.stctl == - (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)))) { + if (!((p_ch->irb->scsw.cmd.stctl & + SCSW_STCTL_SEC_STATUS) || + (p_ch->irb->scsw.cmd.stctl == + SCSW_STCTL_STATUS_PEND) || + (p_ch->irb->scsw.cmd.stctl == + (SCSW_STCTL_ALERT_STATUS | + SCSW_STCTL_STATUS_PEND)))) { #ifdef FUNCTRACE printk(KERN_INFO "%s:%s Exit on line %d\n", dev->name,__func__,__LINE__); @@ -1483,7 +1497,7 @@ ccw_check_return_code(struct ccw_device *cdev, int return_code) { #ifdef FUNCTRACE printk(KERN_INFO "%s: %s() > enter \n", - cdev->dev.bus_id,__func__); + dev_name(&cdev->dev),__func__); #endif CLAW_DBF_TEXT(4,trace,"ccwret"); #ifdef DEBUGMSG @@ -1495,28 +1509,28 @@ ccw_check_return_code(struct ccw_device *cdev, int return_code) switch (return_code) { case -EBUSY: printk(KERN_INFO "%s: Busy !\n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); break; case -ENODEV: printk(KERN_EMERG "%s: Missing device called " - "for IO ENODEV\n", cdev->dev.bus_id); + "for IO ENODEV\n", dev_name(&cdev->dev)); break; case -EIO: printk(KERN_EMERG "%s: Status pending... EIO \n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); break; case -EINVAL: printk(KERN_EMERG "%s: Invalid Dev State EINVAL \n", - cdev->dev.bus_id); + dev_name(&cdev->dev)); break; default: printk(KERN_EMERG "%s: Unknown error in " - "Do_IO %d\n",cdev->dev.bus_id, return_code); + "Do_IO %d\n",dev_name(&cdev->dev), return_code); } } #ifdef FUNCTRACE printk(KERN_INFO "%s: %s() > exit on line %d\n", - cdev->dev.bus_id,__func__,__LINE__); + dev_name(&cdev->dev),__func__,__LINE__); #endif CLAW_DBF_TEXT(4,trace,"ccwret"); } /* end of ccw_check_return_code */ @@ -3909,13 +3923,13 @@ add_channel(struct ccw_device *cdev,int i,struct claw_privbk *privptr) struct ccw_dev_id dev_id; #ifdef FUNCTRACE - printk(KERN_INFO "%s:%s Enter\n",cdev->dev.bus_id,__func__); + printk(KERN_INFO "%s:%s Enter\n",dev_name(&cdev->dev),__func__); #endif - CLAW_DBF_TEXT_(2,setup,"%s",cdev->dev.bus_id); + CLAW_DBF_TEXT_(2,setup,"%s",dev_name(&cdev->dev)); privptr->channel[i].flag = i+1; /* Read is 1 Write is 2 */ p_ch = &privptr->channel[i]; p_ch->cdev = cdev; - snprintf(p_ch->id, CLAW_ID_SIZE, "cl-%s", cdev->dev.bus_id); + snprintf(p_ch->id, CLAW_ID_SIZE, "cl-%s", dev_name(&cdev->dev)); ccw_device_get_id(cdev, &dev_id); p_ch->devno = dev_id.devno; if ((p_ch->irb = kzalloc(sizeof (struct irb),GFP_KERNEL)) == NULL) { @@ -3929,7 +3943,7 @@ add_channel(struct ccw_device *cdev,int i,struct claw_privbk *privptr) } #ifdef FUNCTRACE printk(KERN_INFO "%s:%s Exit on line %d\n", - cdev->dev.bus_id,__func__,__LINE__); + dev_name(&cdev->dev),__func__,__LINE__); #endif return 0; } @@ -3953,7 +3967,8 @@ claw_new_device(struct ccwgroup_device *cgdev) struct ccw_dev_id dev_id; pr_debug("%s() called\n", __func__); - printk(KERN_INFO "claw: add for %s\n",cgdev->cdev[READ]->dev.bus_id); + printk(KERN_INFO "claw: add for %s\n", + dev_name(&cgdev->cdev[READ]->dev)); CLAW_DBF_TEXT(2,setup,"new_dev"); privptr = cgdev->dev.driver_data; cgdev->cdev[READ]->dev.driver_data = privptr; @@ -3978,14 +3993,14 @@ claw_new_device(struct ccwgroup_device *cgdev) if (ret != 0) { printk(KERN_WARNING "claw: ccw_device_set_online %s READ failed " - "with ret = %d\n",cgdev->cdev[READ]->dev.bus_id,ret); + "with ret = %d\n", dev_name(&cgdev->cdev[READ]->dev),ret); goto out; } ret = ccw_device_set_online(cgdev->cdev[WRITE]); if (ret != 0) { printk(KERN_WARNING "claw: ccw_device_set_online %s WRITE failed " - "with ret = %d\n",cgdev->cdev[WRITE]->dev.bus_id, ret); + "with ret = %d\n", dev_name(&cgdev->cdev[WRITE]->dev), ret); goto out; } dev = alloc_netdev(0,"claw%d",claw_init_netdevice); @@ -4066,7 +4081,7 @@ claw_shutdown_device(struct ccwgroup_device *cgdev) int ret; pr_debug("%s() called\n", __func__); - CLAW_DBF_TEXT_(2,setup,"%s",cgdev->dev.bus_id); + CLAW_DBF_TEXT_(2,setup,"%s", dev_name(&cgdev->dev)); priv = cgdev->dev.driver_data; if (!priv) return -ENODEV; @@ -4096,14 +4111,14 @@ claw_remove_device(struct ccwgroup_device *cgdev) struct claw_privbk *priv; pr_debug("%s() called\n", __func__); - CLAW_DBF_TEXT_(2,setup,"%s",cgdev->dev.bus_id); + CLAW_DBF_TEXT_(2,setup,"%s", dev_name(&cgdev->dev)); priv = cgdev->dev.driver_data; if (!priv) { printk(KERN_WARNING "claw: %s() no Priv exiting\n",__func__); return; } printk(KERN_INFO "claw: %s() called %s will be removed.\n", - __func__,cgdev->cdev[0]->dev.bus_id); + __func__, dev_name(&cgdev->cdev[0]->dev)); if (cgdev->state == CCWGROUP_ONLINE) claw_shutdown_device(cgdev); claw_remove_files(&cgdev->dev); diff --git a/drivers/s390/net/claw.h b/drivers/s390/net/claw.h index 1a89d989f348..71c967fbaca3 100644 --- a/drivers/s390/net/claw.h +++ b/drivers/s390/net/claw.h @@ -85,7 +85,7 @@ #define CLAW_MAX_DEV 256 /* max claw devices */ #define MAX_NAME_LEN 8 /* host name, adapter name length */ #define CLAW_FRAME_SIZE 4096 -#define CLAW_ID_SIZE BUS_ID_SIZE+3 +#define CLAW_ID_SIZE 20+3 /* state machine codes used in claw_irq_handler */ diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c index 2a106f3a076d..7e6bd387f4d8 100644 --- a/drivers/s390/net/ctcm_fsms.c +++ b/drivers/s390/net/ctcm_fsms.c @@ -257,9 +257,9 @@ static void chx_txdone(fsm_instance *fi, int event, void *arg) if (duration > ch->prof.tx_time) ch->prof.tx_time = duration; - if (ch->irb->scsw.count != 0) + if (ch->irb->scsw.cmd.count != 0) ctcm_pr_debug("%s: TX not complete, remaining %d bytes\n", - dev->name, ch->irb->scsw.count); + dev->name, ch->irb->scsw.cmd.count); fsm_deltimer(&ch->timer); while ((skb = skb_dequeue(&ch->io_queue))) { priv->stats.tx_packets++; @@ -353,7 +353,7 @@ static void chx_rx(fsm_instance *fi, int event, void *arg) struct channel *ch = arg; struct net_device *dev = ch->netdev; struct ctcm_priv *priv = dev->priv; - int len = ch->max_bufsize - ch->irb->scsw.count; + int len = ch->max_bufsize - ch->irb->scsw.cmd.count; struct sk_buff *skb = ch->trans_skb; __u16 block_len = *((__u16 *)skb->data); int check_len; @@ -1234,9 +1234,9 @@ static void ctcmpc_chx_txdone(fsm_instance *fi, int event, void *arg) if (duration > ch->prof.tx_time) ch->prof.tx_time = duration; - if (ch->irb->scsw.count != 0) + if (ch->irb->scsw.cmd.count != 0) ctcm_pr_debug("%s: TX not complete, remaining %d bytes\n", - dev->name, ch->irb->scsw.count); + dev->name, ch->irb->scsw.cmd.count); fsm_deltimer(&ch->timer); while ((skb = skb_dequeue(&ch->io_queue))) { priv->stats.tx_packets++; @@ -1394,7 +1394,7 @@ static void ctcmpc_chx_rx(fsm_instance *fi, int event, void *arg) struct sk_buff *skb = ch->trans_skb; struct sk_buff *new_skb; unsigned long saveflags = 0; /* avoids compiler warning */ - int len = ch->max_bufsize - ch->irb->scsw.count; + int len = ch->max_bufsize - ch->irb->scsw.cmd.count; if (do_debug_data) { CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, "mpc_ch_rx %s cp:%i %s\n", diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index d52843da4f55..30e525817e89 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -284,18 +284,18 @@ static long ctcm_check_irb_error(struct ccw_device *cdev, struct irb *irb) return 0; CTCM_DBF_TEXT_(ERROR, CTC_DBF_WARN, "irb error %ld on device %s\n", - PTR_ERR(irb), cdev->dev.bus_id); + PTR_ERR(irb), dev_name(&cdev->dev)); switch (PTR_ERR(irb)) { case -EIO: - ctcm_pr_warn("i/o-error on device %s\n", cdev->dev.bus_id); + ctcm_pr_warn("i/o-error on device %s\n", dev_name(&cdev->dev)); break; case -ETIMEDOUT: - ctcm_pr_warn("timeout on device %s\n", cdev->dev.bus_id); + ctcm_pr_warn("timeout on device %s\n", dev_name(&cdev->dev)); break; default: ctcm_pr_warn("unknown error %ld on device %s\n", - PTR_ERR(irb), cdev->dev.bus_id); + PTR_ERR(irb), dev_name(&cdev->dev)); } return PTR_ERR(irb); } @@ -1236,8 +1236,8 @@ static void ctcm_irq_handler(struct ccw_device *cdev, /* Check for unsolicited interrupts. */ if (cgdev == NULL) { ctcm_pr_warn("ctcm: Got unsolicited irq: %s c-%02x d-%02x\n", - cdev->dev.bus_id, irb->scsw.cstat, - irb->scsw.dstat); + dev_name(&cdev->dev), irb->scsw.cmd.cstat, + irb->scsw.cmd.dstat); return; } @@ -1250,14 +1250,14 @@ static void ctcm_irq_handler(struct ccw_device *cdev, ch = priv->channel[WRITE]; else { ctcm_pr_err("ctcm: Can't determine channel for interrupt, " - "device %s\n", cdev->dev.bus_id); + "device %s\n", dev_name(&cdev->dev)); return; } dev = (struct net_device *)(ch->netdev); if (dev == NULL) { ctcm_pr_crit("ctcm: %s dev=NULL bus_id=%s, ch=0x%p\n", - __FUNCTION__, cdev->dev.bus_id, ch); + __FUNCTION__, dev_name(&cdev->dev), ch); return; } @@ -1266,40 +1266,40 @@ static void ctcm_irq_handler(struct ccw_device *cdev, "received c-%02x d-%02x\n", dev->name, ch->id, - irb->scsw.cstat, - irb->scsw.dstat); + irb->scsw.cmd.cstat, + irb->scsw.cmd.dstat); /* Copy interruption response block. */ memcpy(ch->irb, irb, sizeof(struct irb)); /* Check for good subchannel return code, otherwise error message */ - if (irb->scsw.cstat) { + if (irb->scsw.cmd.cstat) { fsm_event(ch->fsm, CTC_EVENT_SC_UNKNOWN, ch); ctcm_pr_warn("%s: subchannel check for dev: %s - %02x %02x\n", - dev->name, ch->id, irb->scsw.cstat, - irb->scsw.dstat); + dev->name, ch->id, irb->scsw.cmd.cstat, + irb->scsw.cmd.dstat); return; } /* Check the reason-code of a unit check */ - if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) { + if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { ccw_unit_check(ch, irb->ecw[0]); return; } - if (irb->scsw.dstat & DEV_STAT_BUSY) { - if (irb->scsw.dstat & DEV_STAT_ATTENTION) + if (irb->scsw.cmd.dstat & DEV_STAT_BUSY) { + if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) fsm_event(ch->fsm, CTC_EVENT_ATTNBUSY, ch); else fsm_event(ch->fsm, CTC_EVENT_BUSY, ch); return; } - if (irb->scsw.dstat & DEV_STAT_ATTENTION) { + if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) { fsm_event(ch->fsm, CTC_EVENT_ATTN, ch); return; } - if ((irb->scsw.stctl & SCSW_STCTL_SEC_STATUS) || - (irb->scsw.stctl == SCSW_STCTL_STATUS_PEND) || - (irb->scsw.stctl == + if ((irb->scsw.cmd.stctl & SCSW_STCTL_SEC_STATUS) || + (irb->scsw.cmd.stctl == SCSW_STCTL_STATUS_PEND) || + (irb->scsw.cmd.stctl == (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND))) fsm_event(ch->fsm, CTC_EVENT_FINSTAT, ch); else @@ -1392,7 +1392,7 @@ static int add_channel(struct ccw_device *cdev, enum channel_types type, goto nomem_return; ch->cdev = cdev; - snprintf(ch->id, CTCM_ID_SIZE, "ch-%s", cdev->dev.bus_id); + snprintf(ch->id, CTCM_ID_SIZE, "ch-%s", dev_name(&cdev->dev)); ch->type = type; /** @@ -1550,8 +1550,10 @@ static int ctcm_new_device(struct ccwgroup_device *cgdev) type = get_channel_type(&cgdev->cdev[0]->id); - snprintf(read_id, CTCM_ID_SIZE, "ch-%s", cgdev->cdev[0]->dev.bus_id); - snprintf(write_id, CTCM_ID_SIZE, "ch-%s", cgdev->cdev[1]->dev.bus_id); + snprintf(read_id, CTCM_ID_SIZE, "ch-%s", + dev_name(&cgdev->cdev[0]->dev)); + snprintf(write_id, CTCM_ID_SIZE, "ch-%s", + dev_name(&cgdev->cdev[1]->dev)); ret = add_channel(cgdev->cdev[0], type, priv); if (ret) diff --git a/drivers/s390/net/ctcm_main.h b/drivers/s390/net/ctcm_main.h index 95b0c0b6ebc6..50d34f31573e 100644 --- a/drivers/s390/net/ctcm_main.h +++ b/drivers/s390/net/ctcm_main.h @@ -80,7 +80,7 @@ #define READ 0 #define WRITE 1 -#define CTCM_ID_SIZE BUS_ID_SIZE+3 +#define CTCM_ID_SIZE 20+3 struct ctcm_profile { unsigned long maxmulti; diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index dd22f4b37037..1c4a33d4e31a 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -492,7 +492,7 @@ lcs_start_channel(struct lcs_channel *channel) unsigned long flags; int rc; - LCS_DBF_TEXT_(4,trace,"ssch%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4,trace,"ssch%s", dev_name(&channel->ccwdev->dev)); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_start(channel->ccwdev, channel->ccws + channel->io_idx, 0, 0, @@ -501,7 +501,7 @@ lcs_start_channel(struct lcs_channel *channel) channel->state = LCS_CH_STATE_RUNNING; spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) { - LCS_DBF_TEXT_(4,trace,"essh%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4,trace,"essh%s", dev_name(&channel->ccwdev->dev)); PRINT_ERR("Error in starting channel, rc=%d!\n", rc); } return rc; @@ -514,12 +514,12 @@ lcs_clear_channel(struct lcs_channel *channel) int rc; LCS_DBF_TEXT(4,trace,"clearch"); - LCS_DBF_TEXT_(4,trace,"%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4,trace,"%s", dev_name(&channel->ccwdev->dev)); spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_clear(channel->ccwdev, (addr_t) channel); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) { - LCS_DBF_TEXT_(4,trace,"ecsc%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4,trace,"ecsc%s", dev_name(&channel->ccwdev->dev)); return rc; } wait_event(channel->wait_q, (channel->state == LCS_CH_STATE_CLEARED)); @@ -540,13 +540,13 @@ lcs_stop_channel(struct lcs_channel *channel) if (channel->state == LCS_CH_STATE_STOPPED) return 0; LCS_DBF_TEXT(4,trace,"haltsch"); - LCS_DBF_TEXT_(4,trace,"%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4,trace,"%s", dev_name(&channel->ccwdev->dev)); channel->state = LCS_CH_STATE_INIT; spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); rc = ccw_device_halt(channel->ccwdev, (addr_t) channel); spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); if (rc) { - LCS_DBF_TEXT_(4,trace,"ehsc%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4,trace,"ehsc%s", dev_name(&channel->ccwdev->dev)); return rc; } /* Asynchronous halt initialted. Wait for its completion. */ @@ -632,10 +632,10 @@ __lcs_resume_channel(struct lcs_channel *channel) return 0; if (channel->ccws[channel->io_idx].flags & CCW_FLAG_SUSPEND) return 0; - LCS_DBF_TEXT_(5, trace, "rsch%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(5, trace, "rsch%s", dev_name(&channel->ccwdev->dev)); rc = ccw_device_resume(channel->ccwdev); if (rc) { - LCS_DBF_TEXT_(4, trace, "ersc%s", channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(4, trace, "ersc%s", dev_name(&channel->ccwdev->dev)); PRINT_ERR("Error in lcs_resume_channel: rc=%d\n",rc); } else channel->state = LCS_CH_STATE_RUNNING; @@ -1302,18 +1302,18 @@ lcs_check_irb_error(struct ccw_device *cdev, struct irb *irb) switch (PTR_ERR(irb)) { case -EIO: - PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id); + PRINT_WARN("i/o-error on device %s\n", dev_name(&cdev->dev)); LCS_DBF_TEXT(2, trace, "ckirberr"); LCS_DBF_TEXT_(2, trace, " rc%d", -EIO); break; case -ETIMEDOUT: - PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id); + PRINT_WARN("timeout on device %s\n", dev_name(&cdev->dev)); LCS_DBF_TEXT(2, trace, "ckirberr"); LCS_DBF_TEXT_(2, trace, " rc%d", -ETIMEDOUT); break; default: PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb), - cdev->dev.bus_id); + dev_name(&cdev->dev)); LCS_DBF_TEXT(2, trace, "ckirberr"); LCS_DBF_TEXT(2, trace, " rc???"); } @@ -1327,8 +1327,8 @@ lcs_get_problem(struct ccw_device *cdev, struct irb *irb) char *sense; sense = (char *) irb->ecw; - cstat = irb->scsw.cstat; - dstat = irb->scsw.dstat; + cstat = irb->scsw.cmd.cstat; + dstat = irb->scsw.cmd.dstat; if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | @@ -1388,17 +1388,19 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) else channel = &card->write; - cstat = irb->scsw.cstat; - dstat = irb->scsw.dstat; - LCS_DBF_TEXT_(5, trace, "Rint%s",cdev->dev.bus_id); - LCS_DBF_TEXT_(5, trace, "%4x%4x",irb->scsw.cstat, irb->scsw.dstat); - LCS_DBF_TEXT_(5, trace, "%4x%4x",irb->scsw.fctl, irb->scsw.actl); + cstat = irb->scsw.cmd.cstat; + dstat = irb->scsw.cmd.dstat; + LCS_DBF_TEXT_(5, trace, "Rint%s",dev_name(&cdev->dev)); + LCS_DBF_TEXT_(5, trace, "%4x%4x", irb->scsw.cmd.cstat, + irb->scsw.cmd.dstat); + LCS_DBF_TEXT_(5, trace, "%4x%4x", irb->scsw.cmd.fctl, + irb->scsw.cmd.actl); /* Check for channel and device errors presented */ rc = lcs_get_problem(cdev, irb); if (rc || (dstat & DEV_STAT_UNIT_EXCEP)) { PRINT_WARN("check on device %s, dstat=0x%X, cstat=0x%X \n", - cdev->dev.bus_id, dstat, cstat); + dev_name(&cdev->dev), dstat, cstat); if (rc) { channel->state = LCS_CH_STATE_ERROR; } @@ -1410,11 +1412,11 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) } /* How far in the ccw chain have we processed? */ if ((channel->state != LCS_CH_STATE_INIT) && - (irb->scsw.fctl & SCSW_FCTL_START_FUNC)) { - index = (struct ccw1 *) __va((addr_t) irb->scsw.cpa) + (irb->scsw.cmd.fctl & SCSW_FCTL_START_FUNC)) { + index = (struct ccw1 *) __va((addr_t) irb->scsw.cmd.cpa) - channel->ccws; - if ((irb->scsw.actl & SCSW_ACTL_SUSPENDED) || - (irb->scsw.cstat & SCHN_STAT_PCI)) + if ((irb->scsw.cmd.actl & SCSW_ACTL_SUSPENDED) || + (irb->scsw.cmd.cstat & SCHN_STAT_PCI)) /* Bloody io subsystem tells us lies about cpa... */ index = (index - 1) & (LCS_NUM_BUFFS - 1); while (channel->io_idx != index) { @@ -1425,25 +1427,24 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) } } - if ((irb->scsw.dstat & DEV_STAT_DEV_END) || - (irb->scsw.dstat & DEV_STAT_CHN_END) || - (irb->scsw.dstat & DEV_STAT_UNIT_CHECK)) + if ((irb->scsw.cmd.dstat & DEV_STAT_DEV_END) || + (irb->scsw.cmd.dstat & DEV_STAT_CHN_END) || + (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK)) /* Mark channel as stopped. */ channel->state = LCS_CH_STATE_STOPPED; - else if (irb->scsw.actl & SCSW_ACTL_SUSPENDED) + else if (irb->scsw.cmd.actl & SCSW_ACTL_SUSPENDED) /* CCW execution stopped on a suspend bit. */ channel->state = LCS_CH_STATE_SUSPENDED; - if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC) { - if (irb->scsw.cc != 0) { + if (irb->scsw.cmd.fctl & SCSW_FCTL_HALT_FUNC) { + if (irb->scsw.cmd.cc != 0) { ccw_device_halt(channel->ccwdev, (addr_t) channel); return; } /* The channel has been stopped by halt_IO. */ channel->state = LCS_CH_STATE_HALTED; } - if (irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC) { + if (irb->scsw.cmd.fctl & SCSW_FCTL_CLEAR_FUNC) channel->state = LCS_CH_STATE_CLEARED; - } /* Do the rest in the tasklet. */ tasklet_schedule(&channel->irq_tasklet); } @@ -1461,7 +1462,7 @@ lcs_tasklet(unsigned long data) int rc; channel = (struct lcs_channel *) data; - LCS_DBF_TEXT_(5, trace, "tlet%s",channel->ccwdev->dev.bus_id); + LCS_DBF_TEXT_(5, trace, "tlet%s",dev_name(&channel->ccwdev->dev)); /* Check for processed buffers. */ iob = channel->iob; @@ -2244,7 +2245,7 @@ lcs_recovery(void *ptr) return 0; LCS_DBF_TEXT(4, trace, "recover2"); gdev = card->gdev; - PRINT_WARN("Recovery of device %s started...\n", gdev->dev.bus_id); + PRINT_WARN("Recovery of device %s started...\n", dev_name(&gdev->dev)); rc = __lcs_shutdown_device(gdev, 1); rc = lcs_new_device(gdev); if (!rc) diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c index e4ba6a0372ac..6dd816943d38 100644 --- a/drivers/s390/net/netiucv.c +++ b/drivers/s390/net/netiucv.c @@ -1422,7 +1422,7 @@ static ssize_t user_write(struct device *dev, struct device_attribute *attr, (ndev->flags & (IFF_UP | IFF_RUNNING))) { /* username changed while the interface is active. */ PRINT_WARN("netiucv: device %s active, connected to %s\n", - dev->bus_id, priv->conn->userid); + dev_name(dev), priv->conn->userid); PRINT_WARN("netiucv: user cannot be updated\n"); IUCV_DBF_TEXT(setup, 2, "user_write: device active\n"); return -EBUSY; @@ -1757,7 +1757,7 @@ static int netiucv_register_device(struct net_device *ndev) IUCV_DBF_TEXT(trace, 3, __func__); if (dev) { - snprintf(dev->bus_id, BUS_ID_SIZE, "net%s", ndev->name); + dev_set_name(dev, "net%s", ndev->name); dev->bus = &iucv_bus; dev->parent = iucv_root; /* diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 699ac11debd8..62ec963a0be0 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -90,11 +90,11 @@ struct qeth_dbf_info { #define CARD_RDEV(card) card->read.ccwdev #define CARD_WDEV(card) card->write.ccwdev #define CARD_DDEV(card) card->data.ccwdev -#define CARD_BUS_ID(card) card->gdev->dev.bus_id -#define CARD_RDEV_ID(card) card->read.ccwdev->dev.bus_id -#define CARD_WDEV_ID(card) card->write.ccwdev->dev.bus_id -#define CARD_DDEV_ID(card) card->data.ccwdev->dev.bus_id -#define CHANNEL_ID(channel) channel->ccwdev->dev.bus_id +#define CARD_BUS_ID(card) dev_name(&card->gdev->dev) +#define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev) +#define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev) +#define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev) +#define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev) /** * card stuff diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 9a71dae223e8..114c6f5ad7dd 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -735,15 +735,15 @@ static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) char *sense; sense = (char *) irb->ecw; - cstat = irb->scsw.cstat; - dstat = irb->scsw.dstat; + cstat = irb->scsw.cmd.cstat; + dstat = irb->scsw.cmd.dstat; if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { QETH_DBF_TEXT(TRACE, 2, "CGENCHK"); PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ", - cdev->dev.bus_id, dstat, cstat); + dev_name(&cdev->dev), dstat, cstat); print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 16, 1, irb, 64, 1); return 1; @@ -782,12 +782,12 @@ static long __qeth_check_irb_error(struct ccw_device *cdev, switch (PTR_ERR(irb)) { case -EIO: - PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id); + PRINT_WARN("i/o-error on device %s\n", dev_name(&cdev->dev)); QETH_DBF_TEXT(TRACE, 2, "ckirberr"); QETH_DBF_TEXT_(TRACE, 2, " rc%d", -EIO); break; case -ETIMEDOUT: - PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id); + PRINT_WARN("timeout on device %s\n", dev_name(&cdev->dev)); QETH_DBF_TEXT(TRACE, 2, "ckirberr"); QETH_DBF_TEXT_(TRACE, 2, " rc%d", -ETIMEDOUT); if (intparm == QETH_RCD_PARM) { @@ -801,7 +801,7 @@ static long __qeth_check_irb_error(struct ccw_device *cdev, break; default: PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb), - cdev->dev.bus_id); + dev_name(&cdev->dev)); QETH_DBF_TEXT(TRACE, 2, "ckirberr"); QETH_DBF_TEXT(TRACE, 2, " rc???"); } @@ -823,8 +823,8 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, if (__qeth_check_irb_error(cdev, intparm, irb)) return; - cstat = irb->scsw.cstat; - dstat = irb->scsw.dstat; + cstat = irb->scsw.cmd.cstat; + dstat = irb->scsw.cmd.dstat; card = CARD_FROM_CDEV(cdev); if (!card) @@ -842,10 +842,10 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, } atomic_set(&channel->irq_pending, 0); - if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC)) + if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) channel->state = CH_STATE_STOPPED; - if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC)) + if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) channel->state = CH_STATE_HALTED; /*let's wake up immediately on data channel*/ @@ -4073,7 +4073,7 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) if (!get_device(dev)) return -ENODEV; - QETH_DBF_TEXT_(SETUP, 2, "%s", gdev->dev.bus_id); + QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); card = qeth_alloc_card(); if (!card) { diff --git a/drivers/s390/s390_rdev.c b/drivers/s390/s390_rdev.c index 3c7145d9f9a1..64371c05a3b3 100644 --- a/drivers/s390/s390_rdev.c +++ b/drivers/s390/s390_rdev.c @@ -30,7 +30,7 @@ s390_root_dev_register(const char *name) dev = kzalloc(sizeof(struct device), GFP_KERNEL); if (!dev) return ERR_PTR(-ENOMEM); - strncpy(dev->bus_id, name, min(strlen(name), (size_t)BUS_ID_SIZE)); + dev_set_name(dev, name); dev->release = s390_root_dev_release; ret = device_register(dev); if (ret) { diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c index 5bfbe7659830..834e9ee7e934 100644 --- a/drivers/s390/s390mach.c +++ b/drivers/s390/s390mach.c @@ -2,10 +2,10 @@ * drivers/s390/s390mach.c * S/390 machine check handler * - * S390 version - * Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Copyright IBM Corp. 2000,2008 * Author(s): Ingo Adlung (adlung@de.ibm.com) * Martin Schwidefsky (schwidefsky@de.ibm.com) + * Cornelia Huck <cornelia.huck@de.ibm.com> */ #include <linux/init.h> @@ -18,10 +18,6 @@ #include <asm/etr.h> #include <asm/lowcore.h> #include <asm/cio.h> -#include "cio/cio.h" -#include "cio/chsc.h" -#include "cio/css.h" -#include "cio/chp.h" #include "s390mach.h" static struct semaphore m_sem; @@ -36,13 +32,40 @@ s390_handle_damage(char *msg) for(;;); } +static crw_handler_t crw_handlers[NR_RSCS]; + +/** + * s390_register_crw_handler() - register a channel report word handler + * @rsc: reporting source code to handle + * @handler: handler to be registered + * + * Returns %0 on success and a negative error value otherwise. + */ +int s390_register_crw_handler(int rsc, crw_handler_t handler) +{ + if ((rsc < 0) || (rsc >= NR_RSCS)) + return -EINVAL; + if (!cmpxchg(&crw_handlers[rsc], NULL, handler)) + return 0; + return -EBUSY; +} + +/** + * s390_unregister_crw_handler() - unregister a channel report word handler + * @rsc: reporting source code to handle + */ +void s390_unregister_crw_handler(int rsc) +{ + if ((rsc < 0) || (rsc >= NR_RSCS)) + return; + xchg(&crw_handlers[rsc], NULL); + synchronize_sched(); +} + /* * Retrieve CRWs and call function to handle event. - * - * Note : we currently process CRWs for io and chsc subchannels only */ -static int -s390_collect_crw_info(void *param) +static int s390_collect_crw_info(void *param) { struct crw crw[2]; int ccode; @@ -84,57 +107,24 @@ repeat: crw[chain].rsid); /* Check for overflows. */ if (crw[chain].oflw) { + int i; + pr_debug("%s: crw overflow detected!\n", __func__); - css_schedule_eval_all(); + for (i = 0; i < NR_RSCS; i++) { + if (crw_handlers[i]) + crw_handlers[i](NULL, NULL, 1); + } chain = 0; continue; } - switch (crw[chain].rsc) { - case CRW_RSC_SCH: - if (crw[0].chn && !chain) - break; - pr_debug("source is subchannel %04X\n", crw[0].rsid); - css_process_crw(crw[0].rsid, chain ? crw[1].rsid : 0); - break; - case CRW_RSC_MONITOR: - pr_debug("source is monitoring facility\n"); - break; - case CRW_RSC_CPATH: - pr_debug("source is channel path %02X\n", crw[0].rsid); - /* - * Check for solicited machine checks. These are - * created by reset channel path and need not be - * reported to the common I/O layer. - */ - if (crw[chain].slct) { - pr_debug("solicited machine check for " - "channel path %02X\n", crw[0].rsid); - break; - } - switch (crw[0].erc) { - case CRW_ERC_IPARM: /* Path has come. */ - chp_process_crw(crw[0].rsid, 1); - break; - case CRW_ERC_PERRI: /* Path has gone. */ - case CRW_ERC_PERRN: - chp_process_crw(crw[0].rsid, 0); - break; - default: - pr_debug("Don't know how to handle erc=%x\n", - crw[0].erc); - } - break; - case CRW_RSC_CONFIG: - pr_debug("source is configuration-alert facility\n"); - break; - case CRW_RSC_CSS: - pr_debug("source is channel subsystem\n"); - chsc_process_crw(); - break; - default: - pr_debug("unknown source\n"); - break; + if (crw[0].chn && !chain) { + chain++; + continue; } + if (crw_handlers[crw[chain].rsc]) + crw_handlers[crw[chain].rsc](&crw[0], + chain ? &crw[1] : NULL, + 0); /* chain is always 0 or 1 here. */ chain = crw[chain].chn ? chain + 1 : 0; } @@ -468,6 +458,10 @@ s390_do_machine_check(struct pt_regs *regs) etr_sync_check(); if (S390_lowcore.external_damage_code & (1U << ED_ETR_SWITCH)) etr_switch_to_local(); + if (S390_lowcore.external_damage_code & (1U << ED_STP_SYNC)) + stp_sync_check(); + if (S390_lowcore.external_damage_code & (1U << ED_STP_ISLAND)) + stp_island_check(); } if (mci->se) diff --git a/drivers/s390/s390mach.h b/drivers/s390/s390mach.h index ca681f9b67fc..d39f8b697d27 100644 --- a/drivers/s390/s390mach.h +++ b/drivers/s390/s390mach.h @@ -72,6 +72,13 @@ struct crw { __u32 rsid : 16; /* reporting-source ID */ } __attribute__ ((packed)); +typedef void (*crw_handler_t)(struct crw *, struct crw *, int); + +extern int s390_register_crw_handler(int rsc, crw_handler_t handler); +extern void s390_unregister_crw_handler(int rsc); + +#define NR_RSCS 16 + #define CRW_RSC_MONITOR 0x2 /* monitoring facility */ #define CRW_RSC_SCH 0x3 /* subchannel */ #define CRW_RSC_CPATH 0x4 /* channel path */ @@ -105,6 +112,9 @@ static inline int stcrw(struct crw *pcrw ) #define ED_ETR_SYNC 12 /* External damage ETR sync check */ #define ED_ETR_SWITCH 13 /* External damage ETR switch to local */ +#define ED_STP_SYNC 7 /* External damage STP sync check */ +#define ED_STP_ISLAND 6 /* External damage STP island check */ + struct pt_regs; void s390_handle_mcck(void); diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 8c7e2b778ef1..56021f49cf0e 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -839,7 +839,7 @@ zfcp_unit_enqueue(struct zfcp_port *port, fcp_lun_t fcp_lun) unit->fcp_lun = fcp_lun; /* setup for sysfs registration */ - snprintf(unit->sysfs_device.bus_id, BUS_ID_SIZE, "0x%016llx", fcp_lun); + dev_set_name(&unit->sysfs_device, "0x%016llx", fcp_lun); unit->sysfs_device.parent = &port->sysfs_device; unit->sysfs_device.release = zfcp_sysfs_unit_release; dev_set_drvdata(&unit->sysfs_device, unit); @@ -1066,8 +1066,7 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device) adapter->generic_services.parent = &adapter->ccw_device->dev; adapter->generic_services.release = zfcp_dummy_release; - snprintf(adapter->generic_services.bus_id, BUS_ID_SIZE, - "generic_services"); + dev_set_name(&adapter->generic_services, "generic_services"); if (device_register(&adapter->generic_services)) goto generic_services_failed; @@ -1218,24 +1217,19 @@ zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn, u32 status, if (status & ZFCP_STATUS_PORT_WKA) { switch (d_id) { case ZFCP_DID_DIRECTORY_SERVICE: - snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, - "directory"); + dev_set_name(&port->sysfs_device, "directory"); break; case ZFCP_DID_MANAGEMENT_SERVICE: - snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, - "management"); + dev_set_name(&port->sysfs_device, "management"); break; case ZFCP_DID_KEY_DISTRIBUTION_SERVICE: - snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, - "key_distribution"); + dev_set_name(&port->sysfs_device, "key_distribution"); break; case ZFCP_DID_ALIAS_SERVICE: - snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, - "alias"); + dev_set_name(&port->sysfs_device, "alias"); break; case ZFCP_DID_TIME_SERVICE: - snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, - "time"); + dev_set_name(&port->sysfs_device, "time"); break; default: kfree(port); @@ -1244,8 +1238,7 @@ zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn, u32 status, port->d_id = d_id; port->sysfs_device.parent = &adapter->generic_services; } else { - snprintf(port->sysfs_device.bus_id, - BUS_ID_SIZE, "0x%016llx", wwpn); + dev_set_name(&port->sysfs_device, "0x%016llx", wwpn); port->sysfs_device.parent = &adapter->ccw_device->dev; } port->sysfs_device.release = zfcp_sysfs_port_release; diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index bda8c77b22da..69bc7446f7b7 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -870,7 +870,7 @@ struct zfcp_data { struct semaphore config_sema; /* serialises configuration changes */ atomic_t loglevel; /* current loglevel */ - char init_busid[BUS_ID_SIZE]; + char init_busid[20]; wwn_t init_wwpn; fcp_lun_t init_fcp_lun; char *driver_version; @@ -922,7 +922,7 @@ extern void _zfcp_hex_dump(char *, int); _zfcp_hex_dump(addr, count); \ } -#define zfcp_get_busid_by_adapter(adapter) (adapter->ccw_device->dev.bus_id) +#define zfcp_get_busid_by_adapter(adapter) (dev_name(&adapter->ccw_device->dev)) #define zfcp_get_busid_by_port(port) (zfcp_get_busid_by_adapter(port->adapter)) #define zfcp_get_busid_by_unit(unit) (zfcp_get_busid_by_port(unit->port)) diff --git a/drivers/sbus/sbus.c b/drivers/sbus/sbus.c index c37d7c2587ff..73a86d09bba8 100644 --- a/drivers/sbus/sbus.c +++ b/drivers/sbus/sbus.c @@ -78,7 +78,7 @@ static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sde else sdev->ofdev.dev.parent = &sdev->bus->ofdev.dev; sdev->ofdev.dev.bus = &sbus_bus_type; - sprintf(sdev->ofdev.dev.bus_id, "sbus[%08x]", dp->node); + dev_set_name(&sdev->ofdev.dev, "sbus[%08x]", dp->node); if (of_device_register(&sdev->ofdev) != 0) printk(KERN_DEBUG "sbus: device registration error for %s!\n", @@ -257,11 +257,11 @@ static void __init build_one_sbus(struct device_node *dp, int num_sbus) sbus->ofdev.node = dp; sbus->ofdev.dev.parent = NULL; sbus->ofdev.dev.bus = &sbus_bus_type; - sprintf(sbus->ofdev.dev.bus_id, "sbus%d", num_sbus); + dev_set_name(&sbus->ofdev.dev, "sbus%d", num_sbus); if (of_device_register(&sbus->ofdev) != 0) printk(KERN_DEBUG "sbus: device registration error for %s!\n", - sbus->ofdev.dev.bus_id); + dev_name(&sbus->ofdev.dev)); dev_dp = dp->child; while (dev_dp) { diff --git a/drivers/scsi/aic94xx/aic94xx_sds.c b/drivers/scsi/aic94xx/aic94xx_sds.c index 4446e3d584dc..8630a75b2872 100644 --- a/drivers/scsi/aic94xx/aic94xx_sds.c +++ b/drivers/scsi/aic94xx/aic94xx_sds.c @@ -1093,9 +1093,9 @@ out: * @bytes_to_verify: total bytes to verify */ int asd_verify_flash_seg(struct asd_ha_struct *asd_ha, - void *src, u32 dest_offset, u32 bytes_to_verify) + const void *src, u32 dest_offset, u32 bytes_to_verify) { - u8 *src_buf; + const u8 *src_buf; u8 flash_char; int err; u32 nv_offset, reg, i; @@ -1105,7 +1105,7 @@ int asd_verify_flash_seg(struct asd_ha_struct *asd_ha, err = FLASH_OK; nv_offset = dest_offset; - src_buf = (u8 *)src; + src_buf = (const u8 *)src; for (i = 0; i < bytes_to_verify; i++) { flash_char = asd_read_reg_byte(asd_ha, reg + nv_offset + i); if (flash_char != src_buf[i]) { @@ -1124,9 +1124,9 @@ int asd_verify_flash_seg(struct asd_ha_struct *asd_ha, * @bytes_to_write: total bytes to write */ int asd_write_flash_seg(struct asd_ha_struct *asd_ha, - void *src, u32 dest_offset, u32 bytes_to_write) + const void *src, u32 dest_offset, u32 bytes_to_write) { - u8 *src_buf; + const u8 *src_buf; u32 nv_offset, reg, i; int err; @@ -1153,7 +1153,7 @@ int asd_write_flash_seg(struct asd_ha_struct *asd_ha, return err; } - src_buf = (u8 *)src; + src_buf = (const u8 *)src; for (i = 0; i < bytes_to_write; i++) { /* Setup program command sequence */ switch (asd_ha->hw_prof.flash.method) { diff --git a/drivers/scsi/aic94xx/aic94xx_sds.h b/drivers/scsi/aic94xx/aic94xx_sds.h index bb9795a04dc3..a06dc0114b8c 100644 --- a/drivers/scsi/aic94xx/aic94xx_sds.h +++ b/drivers/scsi/aic94xx/aic94xx_sds.h @@ -110,9 +110,9 @@ struct bios_file_header { }; int asd_verify_flash_seg(struct asd_ha_struct *asd_ha, - void *src, u32 dest_offset, u32 bytes_to_verify); + const void *src, u32 dest_offset, u32 bytes_to_verify); int asd_write_flash_seg(struct asd_ha_struct *asd_ha, - void *src, u32 dest_offset, u32 bytes_to_write); + const void *src, u32 dest_offset, u32 bytes_to_write); int asd_chk_write_status(struct asd_ha_struct *asd_ha, u32 sector_addr, u8 erase_flag); int asd_check_flash_type(struct asd_ha_struct *asd_ha); diff --git a/drivers/scsi/aic94xx/aic94xx_seq.c b/drivers/scsi/aic94xx/aic94xx_seq.c index f4272ac4c685..8f98e33155e9 100644 --- a/drivers/scsi/aic94xx/aic94xx_seq.c +++ b/drivers/scsi/aic94xx/aic94xx_seq.c @@ -46,7 +46,7 @@ static const struct firmware *sequencer_fw; static u16 cseq_vecs[CSEQ_NUM_VECS], lseq_vecs[LSEQ_NUM_VECS], mode2_task, cseq_idle_loop, lseq_idle_loop; -static u8 *cseq_code, *lseq_code; +static const u8 *cseq_code, *lseq_code; static u32 cseq_code_size, lseq_code_size; static u16 first_scb_site_no = 0xFFFF; @@ -1235,7 +1235,8 @@ int asd_release_firmware(void) static int asd_request_firmware(struct asd_ha_struct *asd_ha) { int err, i; - struct sequencer_file_header header, *hdr_ptr; + struct sequencer_file_header header; + const struct sequencer_file_header *hdr_ptr; u32 csum = 0; u16 *ptr_cseq_vecs, *ptr_lseq_vecs; @@ -1249,7 +1250,7 @@ static int asd_request_firmware(struct asd_ha_struct *asd_ha) if (err) return err; - hdr_ptr = (struct sequencer_file_header *)sequencer_fw->data; + hdr_ptr = (const struct sequencer_file_header *)sequencer_fw->data; header.csum = le32_to_cpu(hdr_ptr->csum); header.major = le32_to_cpu(hdr_ptr->major); diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 8508816f303d..d1944d5449f4 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -270,8 +270,8 @@ rebuild_sys_tab: pHba->initialized = TRUE; pHba->state &= ~DPTI_STATE_RESET; if (adpt_sysfs_class) { - struct device *dev = device_create(adpt_sysfs_class, - NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit), + struct device *dev = device_create_drvdata(adpt_sysfs_class, + NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit), NULL, "dpti%d", pHba->unit); if (IS_ERR(dev)) { printk(KERN_WARNING"dpti%d: unable to " diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index c6457bfc8a49..b4414ba60b02 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -232,8 +232,8 @@ int scsi_add_host(struct Scsi_Host *shost, struct device *dev) } if (shost->transportt->create_work_queue) { - snprintf(shost->work_q_name, KOBJ_NAME_LEN, "scsi_wq_%d", - shost->host_no); + snprintf(shost->work_q_name, sizeof(shost->work_q_name), + "scsi_wq_%d", shost->host_no); shost->work_q = create_singlethread_workqueue( shost->work_q_name); if (!shost->work_q) { @@ -466,7 +466,8 @@ struct Scsi_Host *scsi_host_lookup(unsigned short hostnum) struct device *cdev; struct Scsi_Host *shost = ERR_PTR(-ENXIO); - cdev = class_find_device(&shost_class, &hostnum, __scsi_host_match); + cdev = class_find_device(&shost_class, NULL, &hostnum, + __scsi_host_match); if (cdev) { shost = scsi_host_get(class_to_shost(cdev)); put_device(cdev); diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index 44d8d5163a1a..683bce375c74 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -60,6 +60,13 @@ #define IDESCSI_DEBUG_LOG 0 +#if IDESCSI_DEBUG_LOG +#define debug_log(fmt, args...) \ + printk(KERN_INFO "ide-scsi: " fmt, ## args) +#else +#define debug_log(fmt, args...) do {} while (0) +#endif + /* * SCSI command transformation layer */ @@ -129,14 +136,15 @@ static inline idescsi_scsi_t *drive_to_idescsi(ide_drive_t *ide_drive) #define IDESCSI_PC_RQ 90 /* - * PIO data transfer routines using the scatter gather table. + * PIO data transfer routine using the scatter gather table. */ -static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, - unsigned int bcount) +static void ide_scsi_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, + unsigned int bcount, int write) { ide_hwif_t *hwif = drive->hwif; - int count; + xfer_func_t *xf = write ? hwif->output_data : hwif->input_data; char *buf; + int count; while (bcount) { count = min(pc->sg->length - pc->b_count, bcount); @@ -145,13 +153,13 @@ static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, local_irq_save(flags); buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) + - pc->sg->offset; - hwif->input_data(drive, NULL, buf + pc->b_count, count); + pc->sg->offset; + xf(drive, NULL, buf + pc->b_count, count); kunmap_atomic(buf - pc->sg->offset, KM_IRQ0); local_irq_restore(flags); } else { buf = sg_virt(pc->sg); - hwif->input_data(drive, NULL, buf + pc->b_count, count); + xf(drive, NULL, buf + pc->b_count, count); } bcount -= count; pc->b_count += count; if (pc->b_count == pc->sg->length) { @@ -163,51 +171,34 @@ static void idescsi_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, } if (bcount) { - printk (KERN_ERR "ide-scsi: scatter gather table too small, discarding data\n"); - ide_pad_transfer(drive, 0, bcount); + printk(KERN_ERR "%s: scatter gather table too small, %s\n", + drive->name, write ? "padding with zeros" + : "discarding data"); + ide_pad_transfer(drive, write, bcount); } } -static void idescsi_output_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, - unsigned int bcount) +static void ide_scsi_hex_dump(u8 *data, int len) { - ide_hwif_t *hwif = drive->hwif; - int count; - char *buf; + print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, data, len, 0); +} - while (bcount) { - count = min(pc->sg->length - pc->b_count, bcount); - if (PageHighMem(sg_page(pc->sg))) { - unsigned long flags; +static int idescsi_end_request(ide_drive_t *, int, int); - local_irq_save(flags); - buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) + - pc->sg->offset; - hwif->output_data(drive, NULL, buf + pc->b_count, count); - kunmap_atomic(buf - pc->sg->offset, KM_IRQ0); - local_irq_restore(flags); - } else { - buf = sg_virt(pc->sg); - hwif->output_data(drive, NULL, buf + pc->b_count, count); - } - bcount -= count; pc->b_count += count; - if (pc->b_count == pc->sg->length) { - if (!--pc->sg_cnt) - break; - pc->sg = sg_next(pc->sg); - pc->b_count = 0; - } - } +static void ide_scsi_callback(ide_drive_t *drive) +{ + idescsi_scsi_t *scsi = drive_to_idescsi(drive); + struct ide_atapi_pc *pc = scsi->pc; - if (bcount) { - printk (KERN_ERR "ide-scsi: scatter gather table too small, padding with zeros\n"); - ide_pad_transfer(drive, 1, bcount); - } -} + if (pc->flags & PC_FLAG_TIMEDOUT) + debug_log("%s: got timed out packet %lu at %lu\n", __func__, + pc->scsi_cmd->serial_number, jiffies); + /* end this request now - scsi should retry it*/ + else if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) + printk(KERN_INFO "Packet command completed, %d bytes" + " transferred\n", pc->xferred); -static void ide_scsi_hex_dump(u8 *data, int len) -{ - print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, data, len, 0); + idescsi_end_request(drive, 1, 0); } static int idescsi_check_condition(ide_drive_t *drive, @@ -228,14 +219,16 @@ static int idescsi_check_condition(ide_drive_t *drive, kfree(pc); return -ENOMEM; } - ide_init_drive_cmd(rq); + blk_rq_init(NULL, rq); rq->special = (char *) pc; pc->rq = rq; pc->buf = buf; pc->c[0] = REQUEST_SENSE; pc->c[4] = pc->req_xfer = pc->buf_size = SCSI_SENSE_BUFFERSIZE; rq->cmd_type = REQ_TYPE_SENSE; + rq->cmd_flags |= REQ_PREEMPT; pc->timeout = jiffies + WAIT_READY; + pc->callback = ide_scsi_callback; /* NOTE! Save the failed packet command in "rq->buffer" */ rq->buffer = (void *) failed_cmd->special; pc->scsi_cmd = ((struct ide_atapi_pc *) failed_cmd->special)->scsi_cmd; @@ -244,11 +237,10 @@ static int idescsi_check_condition(ide_drive_t *drive, ide_scsi_hex_dump(pc->c, 6); } rq->rq_disk = scsi->disk; - return ide_do_drive_cmd(drive, rq, ide_preempt); + ide_do_drive_cmd(drive, rq); + return 0; } -static int idescsi_end_request(ide_drive_t *, int, int); - static ide_startstop_t idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) { @@ -256,7 +248,7 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT)) /* force an abort */ - hwif->OUTBSYNC(drive, WIN_IDLEIMMEDIATE, + hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE, hwif->io_ports.command_addr); rq->errors++; @@ -269,10 +261,9 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err) static ide_startstop_t idescsi_atapi_abort(ide_drive_t *drive, struct request *rq) { -#if IDESCSI_DEBUG_LOG - printk(KERN_WARNING "idescsi_atapi_abort called for %lu\n", + debug_log("%s called for %lu\n", __func__, ((struct ide_atapi_pc *) rq->special)->scsi_cmd->serial_number); -#endif + rq->errors |= ERROR_MAX; idescsi_end_request(drive, 0, 0); @@ -351,9 +342,9 @@ static int idescsi_expiry(ide_drive_t *drive) idescsi_scsi_t *scsi = drive_to_idescsi(drive); struct ide_atapi_pc *pc = scsi->pc; -#if IDESCSI_DEBUG_LOG - printk(KERN_WARNING "idescsi_expiry called for %lu at %lu\n", pc->scsi_cmd->serial_number, jiffies); -#endif + debug_log("%s called for %lu at %lu\n", __func__, + pc->scsi_cmd->serial_number, jiffies); + pc->flags |= PC_FLAG_TIMEDOUT; return 0; /* we do not want the ide subsystem to retry */ @@ -365,141 +356,19 @@ static int idescsi_expiry(ide_drive_t *drive) static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive) { idescsi_scsi_t *scsi = drive_to_idescsi(drive); - ide_hwif_t *hwif = drive->hwif; struct ide_atapi_pc *pc = scsi->pc; - struct request *rq = pc->rq; - unsigned int temp; - u16 bcount; - u8 stat, ireason; - -#if IDESCSI_DEBUG_LOG - printk (KERN_INFO "ide-scsi: Reached idescsi_pc_intr interrupt handler\n"); -#endif /* IDESCSI_DEBUG_LOG */ - - if (pc->flags & PC_FLAG_TIMEDOUT) { -#if IDESCSI_DEBUG_LOG - printk(KERN_WARNING "idescsi_pc_intr: got timed out packet %lu at %lu\n", - pc->scsi_cmd->serial_number, jiffies); -#endif - /* end this request now - scsi should retry it*/ - idescsi_end_request (drive, 1, 0); - return ide_stopped; - } - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; -#if IDESCSI_DEBUG_LOG - printk ("ide-scsi: %s: DMA complete\n", drive->name); -#endif /* IDESCSI_DEBUG_LOG */ - pc->xferred = pc->req_xfer; - (void)hwif->dma_ops->dma_end(drive); - } - - /* Clear the interrupt */ - stat = ide_read_status(drive); - - if ((stat & DRQ_STAT) == 0) { - /* No more interrupts */ - if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) - printk(KERN_INFO "Packet command completed, %d bytes" - " transferred\n", pc->xferred); - local_irq_enable_in_hardirq(); - if (stat & ERR_STAT) - rq->errors++; - idescsi_end_request (drive, 1, 0); - return ide_stopped; - } - bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | - hwif->INB(hwif->io_ports.lbam_addr); - ireason = hwif->INB(hwif->io_ports.nsect_addr); - - if (ireason & CD) { - printk(KERN_ERR "ide-scsi: CoD != 0 in idescsi_pc_intr\n"); - return ide_do_reset (drive); - } - if (ireason & IO) { - temp = pc->xferred + bcount; - if (temp > pc->req_xfer) { - if (temp > pc->buf_size) { - printk(KERN_ERR "ide-scsi: The scsi wants to " - "send us more data than expected " - "- discarding data\n"); - temp = pc->buf_size - pc->xferred; - if (temp) { - pc->flags &= ~PC_FLAG_WRITING; - if (pc->sg) - idescsi_input_buffers(drive, pc, - temp); - else - hwif->input_data(drive, NULL, - pc->cur_pos, temp); - printk(KERN_ERR "ide-scsi: transferred" - " %d of %d bytes\n", - temp, bcount); - } - pc->xferred += temp; - pc->cur_pos += temp; - ide_pad_transfer(drive, 0, bcount - temp); - ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry); - return ide_started; - } -#if IDESCSI_DEBUG_LOG - printk (KERN_NOTICE "ide-scsi: The scsi wants to send us more data than expected - allowing transfer\n"); -#endif /* IDESCSI_DEBUG_LOG */ - } - } - if (ireason & IO) { - pc->flags &= ~PC_FLAG_WRITING; - if (pc->sg) - idescsi_input_buffers(drive, pc, bcount); - else - hwif->input_data(drive, NULL, pc->cur_pos, bcount); - } else { - pc->flags |= PC_FLAG_WRITING; - if (pc->sg) - idescsi_output_buffers(drive, pc, bcount); - else - hwif->output_data(drive, NULL, pc->cur_pos, bcount); - } - /* Update the current position */ - pc->xferred += bcount; - pc->cur_pos += bcount; - /* And set the interrupt handler again */ - ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry); - return ide_started; + return ide_pc_intr(drive, pc, idescsi_pc_intr, get_timeout(pc), + idescsi_expiry, NULL, NULL, NULL, + ide_scsi_io_buffers); } static ide_startstop_t idescsi_transfer_pc(ide_drive_t *drive) { - ide_hwif_t *hwif = drive->hwif; idescsi_scsi_t *scsi = drive_to_idescsi(drive); - struct ide_atapi_pc *pc = scsi->pc; - ide_startstop_t startstop; - u8 ireason; - if (ide_wait_stat(&startstop,drive,DRQ_STAT,BUSY_STAT,WAIT_READY)) { - printk(KERN_ERR "ide-scsi: Strange, packet command " - "initiated yet DRQ isn't asserted\n"); - return startstop; - } - ireason = hwif->INB(hwif->io_ports.nsect_addr); - if ((ireason & CD) == 0 || (ireason & IO)) { - printk(KERN_ERR "ide-scsi: (IO,CoD) != (0,1) while " - "issuing a packet command\n"); - return ide_do_reset (drive); - } - BUG_ON(HWGROUP(drive)->handler != NULL); - /* Set the interrupt routine */ - ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry); - - /* Send the actual packet */ - hwif->output_data(drive, NULL, scsi->pc->c, 12); - - if (pc->flags & PC_FLAG_DMA_OK) { - pc->flags |= PC_FLAG_DMA_IN_PROGRESS; - hwif->dma_ops->dma_start(drive); - } - return ide_started; + return ide_transfer_pc(drive, scsi->pc, idescsi_pc_intr, + get_timeout(scsi->pc), idescsi_expiry); } static inline int idescsi_set_direction(struct ide_atapi_pc *pc) @@ -545,38 +414,12 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc) { idescsi_scsi_t *scsi = drive_to_idescsi(drive); - ide_hwif_t *hwif = drive->hwif; - u16 bcount; - u8 dma = 0; /* Set the current packet command */ scsi->pc = pc; - /* We haven't transferred any data yet */ - pc->xferred = 0; - pc->cur_pos = pc->buf; - /* Request to transfer the entire buffer at once */ - bcount = min(pc->req_xfer, 63 * 1024); - - if (drive->using_dma && !idescsi_map_sg(drive, pc)) { - hwif->sg_mapped = 1; - dma = !hwif->dma_ops->dma_setup(drive); - hwif->sg_mapped = 0; - } - - ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK, bcount, dma); - if (dma) - pc->flags |= PC_FLAG_DMA_OK; - - if (test_bit(IDESCSI_DRQ_INTERRUPT, &scsi->flags)) { - ide_execute_command(drive, WIN_PACKETCMD, &idescsi_transfer_pc, - get_timeout(pc), idescsi_expiry); - return ide_started; - } else { - /* Issue the packet command */ - ide_execute_pkt_cmd(drive); - return idescsi_transfer_pc(drive); - } + return ide_issue_pc(drive, pc, idescsi_transfer_pc, + get_timeout(pc), idescsi_expiry); } /* @@ -584,14 +427,22 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive, */ static ide_startstop_t idescsi_do_request (ide_drive_t *drive, struct request *rq, sector_t block) { -#if IDESCSI_DEBUG_LOG - printk (KERN_INFO "dev: %s, cmd: %x, errors: %d\n", rq->rq_disk->disk_name,rq->cmd[0],rq->errors); - printk (KERN_INFO "sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n",rq->sector,rq->nr_sectors,rq->current_nr_sectors); -#endif /* IDESCSI_DEBUG_LOG */ + debug_log("dev: %s, cmd: %x, errors: %d\n", rq->rq_disk->disk_name, + rq->cmd[0], rq->errors); + debug_log("sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n", + rq->sector, rq->nr_sectors, rq->current_nr_sectors); if (blk_sense_request(rq) || blk_special_request(rq)) { - return idescsi_issue_pc(drive, - (struct ide_atapi_pc *) rq->special); + struct ide_atapi_pc *pc = (struct ide_atapi_pc *)rq->special; + idescsi_scsi_t *scsi = drive_to_idescsi(drive); + + if (test_bit(IDESCSI_DRQ_INTERRUPT, &scsi->flags)) + pc->flags |= PC_FLAG_DRQ_INTERRUPT; + + if (drive->using_dma && !idescsi_map_sg(drive, pc)) + pc->flags |= PC_FLAG_DMA_OK; + + return idescsi_issue_pc(drive, pc); } blk_dump_rq_flags(rq, "ide-scsi: unsup command"); idescsi_end_request (drive, 0, 0); @@ -646,6 +497,8 @@ static void ide_scsi_remove(ide_drive_t *drive) put_disk(g); ide_scsi_put(scsi); + + drive->scsi = 0; } static int ide_scsi_probe(ide_drive_t *); @@ -765,6 +618,8 @@ static int idescsi_queue (struct scsi_cmnd *cmd, memset (pc->c, 0, 12); pc->flags = 0; + if (cmd->sc_data_direction == DMA_TO_DEVICE) + pc->flags |= PC_FLAG_WRITING; pc->rq = rq; memcpy (pc->c, cmd->cmnd, cmd->cmd_len); pc->buf = NULL; @@ -775,6 +630,7 @@ static int idescsi_queue (struct scsi_cmnd *cmd, pc->scsi_cmd = cmd; pc->done = done; pc->timeout = jiffies + cmd->timeout_per_command; + pc->callback = ide_scsi_callback; if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) { printk ("ide-scsi: %s: que %lu, cmd = ", drive->name, cmd->serial_number); @@ -785,12 +641,11 @@ static int idescsi_queue (struct scsi_cmnd *cmd, } } - ide_init_drive_cmd (rq); + blk_rq_init(NULL, rq); rq->special = (char *) pc; rq->cmd_type = REQ_TYPE_SPECIAL; spin_unlock_irq(host->host_lock); - rq->rq_disk = scsi->disk; - (void) ide_do_drive_cmd (drive, rq, ide_end); + blk_execute_rq_nowait(drive->queue, scsi->disk, rq, 0, NULL); spin_lock_irq(host->host_lock); return 0; abort: @@ -985,6 +840,8 @@ static int ide_scsi_probe(ide_drive_t *drive) !(host = scsi_host_alloc(&idescsi_template,sizeof(idescsi_scsi_t)))) return -ENODEV; + drive->scsi = 1; + g = alloc_disk(1 << PARTN_BITS); if (!g) goto out_host_put; @@ -993,10 +850,10 @@ static int ide_scsi_probe(ide_drive_t *drive) host->max_id = 1; -#if IDESCSI_DEBUG_LOG if (drive->id->last_lun) - printk(KERN_NOTICE "%s: id->last_lun=%u\n", drive->name, drive->id->last_lun); -#endif + debug_log("%s: id->last_lun=%u\n", drive->name, + drive->id->last_lun); + if ((drive->id->last_lun & 0x7) != 7) host->max_lun = (drive->id->last_lun & 0x7) + 1; else @@ -1025,6 +882,7 @@ static int ide_scsi_probe(ide_drive_t *drive) put_disk(g); out_host_put: + drive->scsi = 0; scsi_host_put(host); return err; } diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 5fd64e70029d..a272b9a2c869 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -417,15 +417,16 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev, fc_host->next_vport_number = 0; fc_host->npiv_vports_inuse = 0; - snprintf(fc_host->work_q_name, KOBJ_NAME_LEN, "fc_wq_%d", - shost->host_no); + snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name), + "fc_wq_%d", shost->host_no); fc_host->work_q = create_singlethread_workqueue( fc_host->work_q_name); if (!fc_host->work_q) return -ENOMEM; - snprintf(fc_host->devloss_work_q_name, KOBJ_NAME_LEN, "fc_dl_%d", - shost->host_no); + snprintf(fc_host->devloss_work_q_name, + sizeof(fc_host->devloss_work_q_name), + "fc_dl_%d", shost->host_no); fc_host->devloss_work_q = create_singlethread_workqueue( fc_host->devloss_work_q_name); if (!fc_host->devloss_work_q) { diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 65d1737eb664..43b824892640 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -131,8 +131,8 @@ static int iscsi_setup_host(struct transport_container *tc, struct device *dev, mutex_init(&ihost->mutex); atomic_set(&ihost->nr_scans, 0); - snprintf(ihost->scan_workq_name, KOBJ_NAME_LEN, "iscsi_scan_%d", - shost->host_no); + snprintf(ihost->scan_workq_name, sizeof(ihost->scan_workq_name), + "iscsi_scan_%d", shost->host_no); ihost->scan_workq = create_singlethread_workqueue( ihost->scan_workq_name); if (!ihost->scan_workq) diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 45df83b9d847..0fe031f003e7 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -61,7 +61,7 @@ static int ses_probe(struct device *dev) return err; } -#define SES_TIMEOUT 30 +#define SES_TIMEOUT (30 * HZ) #define SES_RETRIES 3 static int ses_recv_diag(struct scsi_device *sdev, int page_code, diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c index ce6ee92b3a1b..f3c3071a8bac 100644 --- a/drivers/serial/sh-sci.c +++ b/drivers/serial/sh-sci.c @@ -410,7 +410,6 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) #endif #if defined(CONFIG_CPU_SUBTYPE_SH7760) || \ - defined(CONFIG_CPU_SUBTYPE_SH7763) || \ defined(CONFIG_CPU_SUBTYPE_SH7780) || \ defined(CONFIG_CPU_SUBTYPE_SH7785) static inline int scif_txroom(struct uart_port *port) @@ -422,6 +421,22 @@ static inline int scif_rxroom(struct uart_port *port) { return sci_in(port, SCRFDR) & 0xff; } +#elif defined(CONFIG_CPU_SUBTYPE_SH7763) +static inline int scif_txroom(struct uart_port *port) +{ + if((port->mapbase == 0xffe00000) || (port->mapbase == 0xffe08000)) /* SCIF0/1*/ + return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0xff); + else /* SCIF2 */ + return SCIF2_TXROOM_MAX - (sci_in(port, SCFDR) >> 8); +} + +static inline int scif_rxroom(struct uart_port *port) +{ + if((port->mapbase == 0xffe00000) || (port->mapbase == 0xffe08000)) /* SCIF0/1*/ + return sci_in(port, SCRFDR) & 0xff; + else /* SCIF2 */ + return sci_in(port, SCFDR) & SCIF2_RFDC_MASK; +} #else static inline int scif_txroom(struct uart_port *port) { diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h index eb84833233fd..cd728df6a01a 100644 --- a/drivers/serial/sh-sci.h +++ b/drivers/serial/sh-sci.h @@ -123,8 +123,9 @@ #elif defined(CONFIG_CPU_SUBTYPE_SH7763) # define SCSPTR0 0xffe00024 /* 16 bit SCIF */ # define SCSPTR1 0xffe08024 /* 16 bit SCIF */ +# define SCSPTR2 0xffe10020 /* 16 bit SCIF/IRDA */ # define SCIF_ORER 0x0001 /* overrun error bit */ -# define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ +# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ # define SCIF_ONLY #elif defined(CONFIG_CPU_SUBTYPE_SH7770) # define SCSPTR0 0xff923020 /* 16 bit SCIF */ @@ -188,6 +189,7 @@ defined(CONFIG_CPU_SUBTYPE_SH7750S) || \ defined(CONFIG_CPU_SUBTYPE_SH7751) || \ defined(CONFIG_CPU_SUBTYPE_SH7751R) || \ + defined(CONFIG_CPU_SUBTYPE_SH7763) || \ defined(CONFIG_CPU_SUBTYPE_SH7780) || \ defined(CONFIG_CPU_SUBTYPE_SH7785) || \ defined(CONFIG_CPU_SUBTYPE_SHX3) @@ -225,14 +227,21 @@ #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \ defined(CONFIG_CPU_SUBTYPE_SH7720) || \ defined(CONFIG_CPU_SUBTYPE_SH7721) -#define SCIF_ORER 0x0200 -#define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER) -#define SCIF_RFDC_MASK 0x007f -#define SCIF_TXROOM_MAX 64 +# define SCIF_ORER 0x0200 +# define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK | SCIF_ORER) +# define SCIF_RFDC_MASK 0x007f +# define SCIF_TXROOM_MAX 64 +#elif defined(CONFIG_CPU_SUBTYPE_SH7763) +# define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK ) +# define SCIF_RFDC_MASK 0x007f +# define SCIF_TXROOM_MAX 64 +/* SH7763 SCIF2 support */ +# define SCIF2_RFDC_MASK 0x001f +# define SCIF2_TXROOM_MAX 16 #else -#define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) -#define SCIF_RFDC_MASK 0x001f -#define SCIF_TXROOM_MAX 16 +# define SCIF_ERRORS ( SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) +# define SCIF_RFDC_MASK 0x001f +# define SCIF_TXROOM_MAX 16 #endif #if defined(SCI_ONLY) @@ -445,11 +454,16 @@ SCIF_FNS(SCFCR, 0x0c, 8, 0x18, 16) defined(CONFIG_CPU_SUBTYPE_SH7763) || \ defined(CONFIG_CPU_SUBTYPE_SH7780) || \ defined(CONFIG_CPU_SUBTYPE_SH7785) -SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16) SCIF_FNS(SCTFDR, 0x0e, 16, 0x1C, 16) SCIF_FNS(SCRFDR, 0x0e, 16, 0x20, 16) SCIF_FNS(SCSPTR, 0, 0, 0x24, 16) SCIF_FNS(SCLSR, 0, 0, 0x28, 16) +#if defined(CONFIG_CPU_SUBTYPE_SH7763) +/* SH7763 SCIF2 */ +SCIF_FNS(SCFDR, 0, 0, 0x1C, 16) +SCIF_FNS(SCSPTR2, 0, 0, 0x20, 16) +SCIF_FNS(SCLSR2, 0, 0, 0x24, 16) +#endif /* CONFIG_CPU_SUBTYPE_SH7763 */ #else SCIF_FNS(SCFDR, 0x0e, 16, 0x1C, 16) #if defined(CONFIG_CPU_SUBTYPE_SH7722) @@ -652,6 +666,9 @@ static inline int sci_rxd_in(struct uart_port *port) return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */ if (port->mapbase == 0xffe08000) return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ + if (port->mapbase == 0xffe10000) + return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF/IRDA */ + return 1; } #elif defined(CONFIG_CPU_SUBTYPE_SH7770) @@ -764,8 +781,7 @@ static inline int sci_rxd_in(struct uart_port *port) * -- Mitch Davis - 15 Jul 2000 */ -#if defined(CONFIG_CPU_SUBTYPE_SH7763) || \ - defined(CONFIG_CPU_SUBTYPE_SH7780) || \ +#if defined(CONFIG_CPU_SUBTYPE_SH7780) || \ defined(CONFIG_CPU_SUBTYPE_SH7785) #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(16*bps)-1) #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \ diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 1ad12afc6ba0..1771b2456bfa 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -502,7 +502,7 @@ struct spi_master *spi_busnum_to_master(u16 bus_num) struct device *dev; struct spi_master *master = NULL; - dev = class_find_device(&spi_master_class, &bus_num, + dev = class_find_device(&spi_master_class, NULL, &bus_num, __spi_master_match); if (dev) master = container_of(dev, struct spi_master, dev); diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 799337f7fde1..55b58ea40273 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -575,7 +575,8 @@ static int spidev_probe(struct spi_device *spi) struct device *dev; spidev->devt = MKDEV(SPIDEV_MAJOR, minor); - dev = device_create(spidev_class, &spi->dev, spidev->devt, + dev = device_create_drvdata(spidev_class, &spi->dev, + spidev->devt, spidev, "spidev%d.%d", spi->master->bus_num, spi->chip_select); status = IS_ERR(dev) ? PTR_ERR(dev) : 0; @@ -585,7 +586,6 @@ static int spidev_probe(struct spi_device *spi) } if (status == 0) { set_bit(minor, minors); - spi_set_drvdata(spi, spidev); list_add(&spidev->device_entry, &device_list); } mutex_unlock(&device_list_lock); diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig index a4aaab9c7ddc..2e9079df26b3 100644 --- a/drivers/uio/Kconfig +++ b/drivers/uio/Kconfig @@ -15,7 +15,7 @@ if UIO config UIO_CIF tristate "generic Hilscher CIF Card driver" - depends on UIO && PCI + depends on PCI default n help Driver for Hilscher CIF DeviceNet and Profibus cards. This @@ -26,9 +26,15 @@ config UIO_CIF To compile this driver as a module, choose M here: the module will be called uio_cif. +config UIO_PDRV + tristate "Userspace I/O platform driver" + help + Generic platform driver for Userspace I/O devices. + + If you don't know what to do here, say N. + config UIO_SMX tristate "SMX cryptengine UIO interface" - depends on UIO default n help Userspace IO interface to the Cryptography engine found on the diff --git a/drivers/uio/Makefile b/drivers/uio/Makefile index 18c45662431e..e00ce0def1a0 100644 --- a/drivers/uio/Makefile +++ b/drivers/uio/Makefile @@ -1,3 +1,4 @@ obj-$(CONFIG_UIO) += uio.o obj-$(CONFIG_UIO_CIF) += uio_cif.o +obj-$(CONFIG_UIO_PDRV) += uio_pdrv.o obj-$(CONFIG_UIO_SMX) += uio_smx.o diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index 0a12e90ad416..626b58ebf188 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -420,6 +420,31 @@ static ssize_t uio_read(struct file *filep, char __user *buf, return retval; } +static ssize_t uio_write(struct file *filep, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + ssize_t retval; + s32 irq_on; + + if (idev->info->irq == UIO_IRQ_NONE) + return -EIO; + + if (count != sizeof(s32)) + return -EINVAL; + + if (!idev->info->irqcontrol) + return -ENOSYS; + + if (copy_from_user(&irq_on, buf, count)) + return -EFAULT; + + retval = idev->info->irqcontrol(idev->info, irq_on); + + return retval ? retval : sizeof(s32); +} + static int uio_find_mem_index(struct vm_area_struct *vma) { int mi; @@ -539,6 +564,7 @@ static const struct file_operations uio_fops = { .open = uio_open, .release = uio_release, .read = uio_read, + .write = uio_write, .mmap = uio_mmap, .poll = uio_poll, .fasync = uio_fasync, diff --git a/drivers/uio/uio_pdrv.c b/drivers/uio/uio_pdrv.c new file mode 100644 index 000000000000..5d0d2e85d982 --- /dev/null +++ b/drivers/uio/uio_pdrv.c @@ -0,0 +1,118 @@ +/* + * drivers/uio/uio_pdrv.c + * + * Copyright (C) 2008 by Digi International Inc. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ +#include <linux/platform_device.h> +#include <linux/uio_driver.h> +#include <linux/stringify.h> + +#define DRIVER_NAME "uio" + +struct uio_platdata { + struct uio_info *uioinfo; +}; + +static int uio_pdrv_probe(struct platform_device *pdev) +{ + struct uio_info *uioinfo = pdev->dev.platform_data; + struct uio_platdata *pdata; + struct uio_mem *uiomem; + int ret = -ENODEV; + int i; + + if (!uioinfo || !uioinfo->name || !uioinfo->version) { + dev_dbg(&pdev->dev, "%s: err_uioinfo\n", __func__); + goto err_uioinfo; + } + + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + ret = -ENOMEM; + dev_dbg(&pdev->dev, "%s: err_alloc_pdata\n", __func__); + goto err_alloc_pdata; + } + + pdata->uioinfo = uioinfo; + + uiomem = &uioinfo->mem[0]; + + for (i = 0; i < pdev->num_resources; ++i) { + struct resource *r = &pdev->resource[i]; + + if (r->flags != IORESOURCE_MEM) + continue; + + if (uiomem >= &uioinfo->mem[MAX_UIO_MAPS]) { + dev_warn(&pdev->dev, "device has more than " + __stringify(MAX_UIO_MAPS) + " I/O memory resources.\n"); + break; + } + + uiomem->memtype = UIO_MEM_PHYS; + uiomem->addr = r->start; + uiomem->size = r->end - r->start + 1; + ++uiomem; + } + + while (uiomem < &uioinfo->mem[MAX_UIO_MAPS]) { + uiomem->size = 0; + ++uiomem; + } + + pdata->uioinfo->priv = pdata; + + ret = uio_register_device(&pdev->dev, pdata->uioinfo); + + if (ret) { + kfree(pdata); +err_alloc_pdata: +err_uioinfo: + return ret; + } + + platform_set_drvdata(pdev, pdata); + + return 0; +} + +static int uio_pdrv_remove(struct platform_device *pdev) +{ + struct uio_platdata *pdata = platform_get_drvdata(pdev); + + uio_unregister_device(pdata->uioinfo); + + return 0; +} + +static struct platform_driver uio_pdrv = { + .probe = uio_pdrv_probe, + .remove = uio_pdrv_remove, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init uio_pdrv_init(void) +{ + return platform_driver_register(&uio_pdrv); +} + +static void __exit uio_pdrv_exit(void) +{ + platform_driver_unregister(&uio_pdrv); +} +module_init(uio_pdrv_init); +module_exit(uio_pdrv_exit); + +MODULE_AUTHOR("Uwe Kleine-Koenig"); +MODULE_DESCRIPTION("Userspace I/O platform driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 755823cdf62a..10e291892430 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -95,6 +95,8 @@ config USB source "drivers/usb/core/Kconfig" +source "drivers/usb/wusbcore/Kconfig" + source "drivers/usb/host/Kconfig" source "drivers/usb/class/Kconfig" diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index a419c42e880e..8b7c419b876e 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -16,9 +16,12 @@ obj-$(CONFIG_USB_UHCI_HCD) += host/ obj-$(CONFIG_USB_SL811_HCD) += host/ obj-$(CONFIG_USB_U132_HCD) += host/ obj-$(CONFIG_USB_R8A66597_HCD) += host/ +obj-$(CONFIG_USB_HWA_HCD) += host/ obj-$(CONFIG_USB_C67X00_HCD) += c67x00/ +obj-$(CONFIG_USB_WUSB) += wusbcore/ + obj-$(CONFIG_USB_ACM) += class/ obj-$(CONFIG_USB_PRINTER) += class/ diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index 5ea3093bc40f..507a9bd0d77c 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -820,7 +820,7 @@ reschedule: } static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw, - u8 code1, u8 code2, u32 addr, u8 *data, int size) + u8 code1, u8 code2, u32 addr, const u8 *data, int size) { int ret; u8 *buf; @@ -1052,7 +1052,6 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance, instance->usbatm = usbatm_instance; instance->modem_type = (struct cxacru_modem_type *) id->driver_info; - memset(instance->card_info, 0, sizeof(instance->card_info)); mutex_init(&instance->poll_state_serialize); instance->poll_state = CXPOLL_STOPPED; diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 7d27c9cf3c43..76fce44c2f9a 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -829,7 +829,6 @@ static int speedtch_bind(struct usbatm_data *usbatm, if (use_isoc) { const struct usb_host_interface *desc = data_intf->cur_altsetting; const __u8 target_address = USB_DIR_IN | usbatm->driver->isoc_in; - int i; use_isoc = 0; /* fall back to bulk if endpoint not found */ diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c index 5f71ff3aee35..cb01b5106efd 100644 --- a/drivers/usb/atm/ueagle-atm.c +++ b/drivers/usb/atm/ueagle-atm.c @@ -579,7 +579,7 @@ MODULE_PARM_DESC(annex, * uea_send_modem_cmd - Send a command for pre-firmware devices. */ static int uea_send_modem_cmd(struct usb_device *usb, - u16 addr, u16 size, u8 * buff) + u16 addr, u16 size, const u8 *buff) { int ret = -ENOMEM; u8 *xfer_buff; @@ -604,7 +604,8 @@ static int uea_send_modem_cmd(struct usb_device *usb, static void uea_upload_pre_firmware(const struct firmware *fw_entry, void *context) { struct usb_device *usb = context; - u8 *pfw, value; + const u8 *pfw; + u8 value; u32 crc = 0; int ret, size; @@ -720,7 +721,7 @@ static int uea_load_firmware(struct usb_device *usb, unsigned int ver) /* * Make sure that the DSP code provided is safe to use. */ -static int check_dsp_e1(u8 *dsp, unsigned int len) +static int check_dsp_e1(const u8 *dsp, unsigned int len) { u8 pagecount, blockcount; u16 blocksize; @@ -771,7 +772,7 @@ static int check_dsp_e1(u8 *dsp, unsigned int len) return 0; } -static int check_dsp_e4(u8 *dsp, int len) +static int check_dsp_e4(const u8 *dsp, int len) { int i; struct l1_code *p = (struct l1_code *) dsp; @@ -819,7 +820,7 @@ static int check_dsp_e4(u8 *dsp, int len) /* * send data to the idma pipe * */ -static int uea_idma_write(struct uea_softc *sc, void *data, u32 size) +static int uea_idma_write(struct uea_softc *sc, const void *data, u32 size) { int ret = -ENOMEM; u8 *xfer_buff; @@ -903,7 +904,7 @@ static void uea_load_page_e1(struct work_struct *work) u16 ovl = sc->ovl; struct block_info_e1 bi; - u8 *p; + const u8 *p; u8 pagecount, blockcount; u16 blockaddr, blocksize; u32 pageoffset; @@ -986,7 +987,7 @@ static void __uea_load_page_e4(struct uea_softc *sc, u8 pageno, int boot) bi.wReserved = cpu_to_be16(UEA_RESERVED); do { - u8 *blockoffset; + const u8 *blockoffset; unsigned int blocksize; blockidx = &p->page_header[blockno]; @@ -1095,7 +1096,7 @@ static inline int wait_cmv_ack(struct uea_softc *sc) #define UCDC_SEND_ENCAPSULATED_COMMAND 0x00 static int uea_request(struct uea_softc *sc, - u16 value, u16 index, u16 size, void *data) + u16 value, u16 index, u16 size, const void *data) { u8 *xfer_buff; int ret = -ENOMEM; @@ -1891,7 +1892,8 @@ static int load_XILINX_firmware(struct uea_softc *sc) { const struct firmware *fw_entry; int ret, size, u, ln; - u8 *pfw, value; + const u8 *pfw; + u8 value; char *fw_name = FW_DIR "930-fpga.bin"; uea_enters(INS_TO_USBDEV(sc)); diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 63c34043b4d9..c3201affa0b6 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1125,9 +1125,6 @@ static void stop_data_traffic(struct acm *acm) for (i = 0; i < acm->rx_buflimit; i++) usb_kill_urb(acm->ru[i].urb); - INIT_LIST_HEAD(&acm->filled_read_bufs); - INIT_LIST_HEAD(&acm->spare_read_bufs); - tasklet_enable(&acm->urb_task); cancel_work_sync(&acm->work); diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 731db051070a..3a656f8f9935 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -28,8 +28,9 @@ /* * Version Information */ -#define DRIVER_VERSION "v0.02" +#define DRIVER_VERSION "v0.03" #define DRIVER_AUTHOR "Oliver Neukum" +#define DRIVER_DESC "USB Abstract Control Model driver for USB WCM Device Management" static struct usb_device_id wdm_ids[] = { { @@ -205,7 +206,7 @@ static void wdm_int_callback(struct urb *urb) req->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE; req->wValue = 0; req->wIndex = desc->inum; - req->wLength = cpu_to_le16(desc->bMaxPacketSize0); + req->wLength = cpu_to_le16(desc->wMaxCommand); usb_fill_control_urb( desc->response, @@ -214,7 +215,7 @@ static void wdm_int_callback(struct urb *urb) usb_rcvctrlpipe(interface_to_usbdev(desc->intf), 0), (unsigned char *)req, desc->inbuf, - desc->bMaxPacketSize0, + desc->wMaxCommand, wdm_in_callback, desc ); @@ -266,7 +267,7 @@ static void cleanup(struct wdm_device *desc) desc->sbuf, desc->validity->transfer_dma); usb_buffer_free(interface_to_usbdev(desc->intf), - desc->wMaxPacketSize, + desc->wMaxCommand, desc->inbuf, desc->response->transfer_dma); kfree(desc->orq); @@ -347,6 +348,7 @@ static ssize_t wdm_write if (rv < 0) { kfree(buf); clear_bit(WDM_IN_USE, &desc->flags); + err("Tx URB error: %d", rv); } else { dev_dbg(&desc->intf->dev, "Tx URB has been submitted index=%d", req->wIndex); @@ -418,6 +420,9 @@ retry: desc->ubuf[i] = desc->ubuf[i + cntr]; desc->length -= cntr; + /* in case we had outstanding data */ + if (!desc->length) + clear_bit(WDM_READ, &desc->flags); rv = cntr; err: @@ -735,6 +740,5 @@ module_init(wdm_init); module_exit(wdm_exit); MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION("USB Abstract Control Model driver for " - "USB WCM Device Management"); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index 83d9dc379d96..6ec38175a817 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c @@ -46,8 +46,6 @@ * 2000-07-05: Ashley Montanaro <ashley@compsoc.man.ac.uk> * Converted file reading routine to dump to buffer once * per device, not per bus - * - * $Id: devices.c,v 1.5 2000/01/11 13:58:21 tom Exp $ */ #include <linux/fs.h> @@ -63,8 +61,6 @@ #include "usb.h" #include "hcd.h" -#define MAX_TOPO_LEVEL 6 - /* Define ALLOW_SERIAL_NUMBER if you want to see the serial number of devices */ #define ALLOW_SERIAL_NUMBER diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index de17738f3acb..cc712015c78e 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -19,8 +19,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * - * $Id: devio.c,v 1.7 2000/02/01 17:28:48 fliegl Exp $ - * * This file implements the usbfs/x/y files, where * x is the bus number and y the device number. * @@ -872,7 +870,7 @@ static int proc_connectinfo(struct dev_state *ps, void __user *arg) static int proc_resetdevice(struct dev_state *ps) { - return usb_reset_composite_device(ps->dev, NULL); + return usb_reset_device(ps->dev); } static int proc_setintf(struct dev_state *ps, void __user *arg) @@ -1687,9 +1685,13 @@ static int usb_classdev_add(struct usb_device *dev) { int minor = ((dev->bus->busnum-1) * 128) + (dev->devnum-1); - dev->usb_classdev = device_create(usb_classdev_class, &dev->dev, - MKDEV(USB_DEVICE_MAJOR, minor), - "usbdev%d.%d", dev->bus->busnum, dev->devnum); + dev->usb_classdev = device_create_drvdata(usb_classdev_class, + &dev->dev, + MKDEV(USB_DEVICE_MAJOR, + minor), NULL, + "usbdev%d.%d", + dev->bus->busnum, + dev->devnum); if (IS_ERR(dev->usb_classdev)) return PTR_ERR(dev->usb_classdev); @@ -1748,6 +1750,11 @@ int __init usb_devio_init(void) usb_classdev_class = NULL; goto out; } + /* devices of this class shadow the major:minor of their parent + * device, so clear ->dev_kobj to prevent adding duplicate entries + * to /sys/dev + */ + usb_classdev_class->dev_kobj = NULL; usb_register_notify(&usbdev_nb); #endif diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 1e56f1cfa6dc..8da1a56659be 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -257,15 +257,16 @@ static int usb_unbind_interface(struct device *dev) udev = interface_to_usbdev(intf); error = usb_autoresume_device(udev); - /* release all urbs for this interface */ - usb_disable_interface(interface_to_usbdev(intf), intf); + /* Terminate all URBs for this interface unless the driver + * supports "soft" unbinding. + */ + if (!driver->soft_unbind) + usb_disable_interface(udev, intf); driver->disconnect(intf); /* reset other interface state */ - usb_set_interface(interface_to_usbdev(intf), - intf->altsetting[0].desc.bInterfaceNumber, - 0); + usb_set_interface(udev, intf->altsetting[0].desc.bInterfaceNumber, 0); usb_set_intfdata(intf, NULL); intf->condition = USB_INTERFACE_UNBOUND; @@ -586,7 +587,7 @@ static int usb_uevent(struct device *dev, struct kobj_uevent_env *env) struct usb_device *usb_dev; /* driver is often null here; dev_dbg() would oops */ - pr_debug("usb %s: uevent\n", dev->bus_id); + pr_debug("usb %s: uevent\n", dev_name(dev)); if (is_usb_device(dev)) usb_dev = to_usb_device(dev); @@ -596,11 +597,11 @@ static int usb_uevent(struct device *dev, struct kobj_uevent_env *env) } if (usb_dev->devnum < 0) { - pr_debug("usb %s: already deleted?\n", dev->bus_id); + pr_debug("usb %s: already deleted?\n", dev_name(dev)); return -ENODEV; } if (!usb_dev->bus) { - pr_debug("usb %s: bus removed?\n", dev->bus_id); + pr_debug("usb %s: bus removed?\n", dev_name(dev)); return -ENODEV; } @@ -805,8 +806,6 @@ static int usb_resume_device(struct usb_device *udev) if (udev->state == USB_STATE_NOTATTACHED) goto done; - if (udev->state != USB_STATE_SUSPENDED && !udev->reset_resume) - goto done; /* Can't resume it if it doesn't have a driver. */ if (udev->dev.driver == NULL) { @@ -1173,11 +1172,8 @@ static int usb_resume_both(struct usb_device *udev) * then we're stuck. */ status = usb_resume_device(udev); } - } else { - - /* Needed for reset-resume */ + } else if (udev->reset_resume) status = usb_resume_device(udev); - } if (status == 0 && udev->actconfig) { for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { @@ -1542,14 +1538,11 @@ static int usb_resume(struct device *dev) udev = to_usb_device(dev); /* If udev->skip_sys_resume is set then udev was already suspended - * when the system suspend started, so we don't want to resume - * udev during this system wakeup. However a reset-resume counts - * as a wakeup event, so allow a reset-resume to occur if remote - * wakeup is enabled. */ - if (udev->skip_sys_resume) { - if (!(udev->reset_resume && udev->do_remote_wakeup)) - return -EHOSTUNREACH; - } + * when the system sleep started, so we don't want to resume it + * during this system wakeup. + */ + if (udev->skip_sys_resume) + return 0; return usb_external_resume_device(udev); } diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c index fae55a31e26d..22912136fc14 100644 --- a/drivers/usb/core/endpoint.c +++ b/drivers/usb/core/endpoint.c @@ -296,7 +296,7 @@ int usb_create_ep_files(struct device *parent, retval = endpoint_get_minor(ep_dev); if (retval) { dev_err(parent, "can not allocate minor number for %s\n", - ep_dev->dev.bus_id); + dev_name(&ep_dev->dev)); goto error_register; } @@ -307,7 +307,7 @@ int usb_create_ep_files(struct device *parent, ep_dev->dev.class = ep_class->class; ep_dev->dev.parent = parent; ep_dev->dev.release = ep_device_release; - snprintf(ep_dev->dev.bus_id, BUS_ID_SIZE, "usbdev%d.%d_ep%02x", + dev_set_name(&ep_dev->dev, "usbdev%d.%d_ep%02x", udev->bus->busnum, udev->devnum, endpoint->desc.bEndpointAddress); diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c index 8133c99c6c5c..b78c7fd99d4f 100644 --- a/drivers/usb/core/file.c +++ b/drivers/usb/core/file.c @@ -147,7 +147,7 @@ int usb_register_dev(struct usb_interface *intf, int retval = -EINVAL; int minor_base = class_driver->minor_base; int minor = 0; - char name[BUS_ID_SIZE]; + char name[20]; char *temp; #ifdef CONFIG_USB_DYNAMIC_MINORS @@ -187,14 +187,15 @@ int usb_register_dev(struct usb_interface *intf, intf->minor = minor; /* create a usb class device for this usb interface */ - snprintf(name, BUS_ID_SIZE, class_driver->name, minor - minor_base); + snprintf(name, sizeof(name), class_driver->name, minor - minor_base); temp = strrchr(name, '/'); - if (temp && (temp[1] != 0x00)) + if (temp && (temp[1] != '\0')) ++temp; else temp = name; - intf->usb_dev = device_create(usb_class->class, &intf->dev, - MKDEV(USB_MAJOR, minor), "%s", temp); + intf->usb_dev = device_create_drvdata(usb_class->class, &intf->dev, + MKDEV(USB_MAJOR, minor), NULL, + "%s", temp); if (IS_ERR(intf->usb_dev)) { down_write(&minor_rwsem); usb_minors[intf->minor] = NULL; @@ -224,7 +225,7 @@ void usb_deregister_dev(struct usb_interface *intf, struct usb_class_driver *class_driver) { int minor_base = class_driver->minor_base; - char name[BUS_ID_SIZE]; + char name[20]; #ifdef CONFIG_USB_DYNAMIC_MINORS minor_base = 0; @@ -239,7 +240,7 @@ void usb_deregister_dev(struct usb_interface *intf, usb_minors[intf->minor] = NULL; up_write(&minor_rwsem); - snprintf(name, BUS_ID_SIZE, class_driver->name, intf->minor - minor_base); + snprintf(name, sizeof(name), class_driver->name, intf->minor - minor_base); device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor)); intf->usb_dev = NULL; intf->minor = -1; diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 09a53e7f3327..d49cbc16e286 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -900,14 +900,14 @@ static int register_root_hub(struct usb_hcd *hcd) if (retval != sizeof usb_dev->descriptor) { mutex_unlock(&usb_bus_list_lock); dev_dbg (parent_dev, "can't read %s device descriptor %d\n", - usb_dev->dev.bus_id, retval); + dev_name(&usb_dev->dev), retval); return (retval < 0) ? retval : -EMSGSIZE; } retval = usb_new_device (usb_dev); if (retval) { dev_err (parent_dev, "can't register root hub for %s, %d\n", - usb_dev->dev.bus_id, retval); + dev_name(&usb_dev->dev), retval); } mutex_unlock(&usb_bus_list_lock); @@ -1744,7 +1744,7 @@ EXPORT_SYMBOL_GPL (usb_hc_died); * If memory is unavailable, returns NULL. */ struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, - struct device *dev, char *bus_name) + struct device *dev, const char *bus_name) { struct usb_hcd *hcd; diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index a0bf5df6cb6f..30ef62e07dce 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -21,6 +21,8 @@ #include <linux/rwsem.h> +#define MAX_TOPO_LEVEL 6 + /* This file contains declarations of usbcore internals that are mostly * used or exposed by Host Controller Drivers. */ @@ -233,7 +235,7 @@ extern void usb_hcd_disable_endpoint(struct usb_device *udev, extern int usb_hcd_get_frame_number(struct usb_device *udev); extern struct usb_hcd *usb_create_hcd(const struct hc_driver *driver, - struct device *dev, char *bus_name); + struct device *dev, const char *bus_name); extern struct usb_hcd *usb_get_hcd(struct usb_hcd *hcd); extern void usb_put_hcd(struct usb_hcd *hcd); extern int usb_add_hcd(struct usb_hcd *hcd, diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 94789be54ca3..d098dad62a49 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -72,7 +72,6 @@ struct usb_hub { unsigned limited_power:1; unsigned quiescing:1; - unsigned activating:1; unsigned disconnected:1; unsigned has_indicators:1; @@ -131,6 +130,12 @@ MODULE_PARM_DESC(use_both_schemes, DECLARE_RWSEM(ehci_cf_port_reset_rwsem); EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem); +#define HUB_DEBOUNCE_TIMEOUT 1500 +#define HUB_DEBOUNCE_STEP 25 +#define HUB_DEBOUNCE_STABLE 100 + + +static int usb_reset_and_verify_device(struct usb_device *udev); static inline char *portspeed(int portstatus) { @@ -535,37 +540,6 @@ static void hub_power_on(struct usb_hub *hub) msleep(max(pgood_delay, (unsigned) 100)); } -static void hub_quiesce(struct usb_hub *hub) -{ - /* (nonblocking) khubd and related activity won't re-trigger */ - hub->quiescing = 1; - hub->activating = 0; - - /* (blocking) stop khubd and related activity */ - usb_kill_urb(hub->urb); - if (hub->has_indicators) - cancel_delayed_work_sync(&hub->leds); - if (hub->tt.hub) - cancel_work_sync(&hub->tt.kevent); -} - -static void hub_activate(struct usb_hub *hub) -{ - int status; - - hub->quiescing = 0; - hub->activating = 1; - - status = usb_submit_urb(hub->urb, GFP_NOIO); - if (status < 0) - dev_err(hub->intfdev, "activate --> %d\n", status); - if (hub->has_indicators && blinkenlights) - schedule_delayed_work(&hub->leds, LED_CYCLE_PERIOD); - - /* scan all ports ASAP */ - kick_khubd(hub); -} - static int hub_hub_status(struct usb_hub *hub, u16 *status, u16 *change) { @@ -624,143 +598,149 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) kick_khubd(hub); } -/* caller has locked the hub device */ -static void hub_stop(struct usb_hub *hub) +enum hub_activation_type { + HUB_INIT, HUB_POST_RESET, HUB_RESUME, HUB_RESET_RESUME +}; + +static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) { struct usb_device *hdev = hub->hdev; - int i; + int port1; + int status; + bool need_debounce_delay = false; - /* Disconnect all the children */ - for (i = 0; i < hdev->maxchild; ++i) { - if (hdev->children[i]) - usb_disconnect(&hdev->children[i]); - } - hub_quiesce(hub); -} + /* After a resume, port power should still be on. + * For any other type of activation, turn it on. + */ + if (type != HUB_RESUME) + hub_power_on(hub); -#define HUB_RESET 1 -#define HUB_RESUME 2 -#define HUB_RESET_RESUME 3 + /* Check each port and set hub->change_bits to let khubd know + * which ports need attention. + */ + for (port1 = 1; port1 <= hdev->maxchild; ++port1) { + struct usb_device *udev = hdev->children[port1-1]; + u16 portstatus, portchange; -#ifdef CONFIG_PM + portstatus = portchange = 0; + status = hub_port_status(hub, port1, &portstatus, &portchange); + if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) + dev_dbg(hub->intfdev, + "port %d: status %04x change %04x\n", + port1, portstatus, portchange); -/* Try to identify which devices need USB-PERSIST handling */ -static int persistent_device(struct usb_device *udev) -{ - int i; - int retval; - struct usb_host_config *actconfig; + /* After anything other than HUB_RESUME (i.e., initialization + * or any sort of reset), every port should be disabled. + * Unconnected ports should likewise be disabled (paranoia), + * and so should ports for which we have no usb_device. + */ + if ((portstatus & USB_PORT_STAT_ENABLE) && ( + type != HUB_RESUME || + !(portstatus & USB_PORT_STAT_CONNECTION) || + !udev || + udev->state == USB_STATE_NOTATTACHED)) { + clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE); + portstatus &= ~USB_PORT_STAT_ENABLE; + } - /* Explicitly not marked persistent? */ - if (!udev->persist_enabled) - return 0; + /* Clear status-change flags; we'll debounce later */ + if (portchange & USB_PORT_STAT_C_CONNECTION) { + need_debounce_delay = true; + clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_CONNECTION); + } + if (portchange & USB_PORT_STAT_C_ENABLE) { + need_debounce_delay = true; + clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_ENABLE); + } - /* No active config? */ - actconfig = udev->actconfig; - if (!actconfig) - return 0; + if (!udev || udev->state == USB_STATE_NOTATTACHED) { + /* Tell khubd to disconnect the device or + * check for a new connection + */ + if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) + set_bit(port1, hub->change_bits); + + } else if (portstatus & USB_PORT_STAT_ENABLE) { + /* The power session apparently survived the resume. + * If there was an overcurrent or suspend change + * (i.e., remote wakeup request), have khubd + * take care of it. + */ + if (portchange) + set_bit(port1, hub->change_bits); + + } else if (udev->persist_enabled) { +#ifdef CONFIG_PM + udev->reset_resume = 1; +#endif + set_bit(port1, hub->change_bits); - /* FIXME! We should check whether it's open here or not! */ + } else { + /* The power session is gone; tell khubd */ + usb_set_device_state(udev, USB_STATE_NOTATTACHED); + set_bit(port1, hub->change_bits); + } + } - /* - * Check that all the interface drivers have a - * 'reset_resume' entrypoint + /* If no port-status-change flags were set, we don't need any + * debouncing. If flags were set we can try to debounce the + * ports all at once right now, instead of letting khubd do them + * one at a time later on. + * + * If any port-status changes do occur during this delay, khubd + * will see them later and handle them normally. */ - retval = 0; - for (i = 0; i < actconfig->desc.bNumInterfaces; i++) { - struct usb_interface *intf; - struct usb_driver *driver; + if (need_debounce_delay) + msleep(HUB_DEBOUNCE_STABLE); - intf = actconfig->interface[i]; - if (!intf->dev.driver) - continue; - driver = to_usb_driver(intf->dev.driver); - if (!driver->reset_resume) - return 0; - /* - * We have at least one driver, and that one - * has a reset_resume method. - */ - retval = 1; - } - return retval; -} + hub->quiescing = 0; -static void hub_restart(struct usb_hub *hub, int type) -{ - struct usb_device *hdev = hub->hdev; - int port1; + status = usb_submit_urb(hub->urb, GFP_NOIO); + if (status < 0) + dev_err(hub->intfdev, "activate --> %d\n", status); + if (hub->has_indicators && blinkenlights) + schedule_delayed_work(&hub->leds, LED_CYCLE_PERIOD); - /* Check each of the children to see if they require - * USB-PERSIST handling or disconnection. Also check - * each unoccupied port to make sure it is still disabled. - */ - for (port1 = 1; port1 <= hdev->maxchild; ++port1) { - struct usb_device *udev = hdev->children[port1-1]; - int status = 0; - u16 portstatus, portchange; + /* Scan all ports that need attention */ + kick_khubd(hub); +} - if (!udev || udev->state == USB_STATE_NOTATTACHED) { - if (type != HUB_RESET) { - status = hub_port_status(hub, port1, - &portstatus, &portchange); - if (status == 0 && (portstatus & - USB_PORT_STAT_ENABLE)) - clear_port_feature(hdev, port1, - USB_PORT_FEAT_ENABLE); - } - continue; - } +enum hub_quiescing_type { + HUB_DISCONNECT, HUB_PRE_RESET, HUB_SUSPEND +}; - /* Was the power session lost while we were suspended? */ - switch (type) { - case HUB_RESET_RESUME: - portstatus = 0; - portchange = USB_PORT_STAT_C_CONNECTION; - break; +static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type) +{ + struct usb_device *hdev = hub->hdev; + int i; - case HUB_RESET: - case HUB_RESUME: - status = hub_port_status(hub, port1, - &portstatus, &portchange); - break; - } + /* khubd and related activity won't re-trigger */ + hub->quiescing = 1; - /* For "USB_PERSIST"-enabled children we must - * mark the child device for reset-resume and - * turn off the various status changes to prevent - * khubd from disconnecting it later. - */ - if (status == 0 && !(portstatus & USB_PORT_STAT_ENABLE) && - persistent_device(udev)) { - if (portchange & USB_PORT_STAT_C_ENABLE) - clear_port_feature(hub->hdev, port1, - USB_PORT_FEAT_C_ENABLE); - if (portchange & USB_PORT_STAT_C_CONNECTION) - clear_port_feature(hub->hdev, port1, - USB_PORT_FEAT_C_CONNECTION); - udev->reset_resume = 1; + if (type != HUB_SUSPEND) { + /* Disconnect all the children */ + for (i = 0; i < hdev->maxchild; ++i) { + if (hdev->children[i]) + usb_disconnect(&hdev->children[i]); } - - /* Otherwise for a reset_resume we must disconnect the child, - * but as we may not lock the child device here - * we have to do a "logical" disconnect. - */ - else if (type == HUB_RESET_RESUME) - hub_port_logical_disconnect(hub, port1); } - hub_activate(hub); + /* Stop khubd and related activity */ + usb_kill_urb(hub->urb); + if (hub->has_indicators) + cancel_delayed_work_sync(&hub->leds); + if (hub->tt.hub) + cancel_work_sync(&hub->tt.kevent); } -#endif /* CONFIG_PM */ - /* caller has locked the hub device */ static int hub_pre_reset(struct usb_interface *intf) { struct usb_hub *hub = usb_get_intfdata(intf); - hub_stop(hub); + hub_quiesce(hub, HUB_PRE_RESET); return 0; } @@ -769,8 +749,7 @@ static int hub_post_reset(struct usb_interface *intf) { struct usb_hub *hub = usb_get_intfdata(intf); - hub_power_on(hub); - hub_activate(hub); + hub_activate(hub, HUB_POST_RESET); return 0; } @@ -1016,8 +995,7 @@ static int hub_configure(struct usb_hub *hub, if (hub->has_indicators && blinkenlights) hub->indicator [0] = INDICATOR_CYCLE; - hub_power_on(hub); - hub_activate(hub); + hub_activate(hub, HUB_INIT); return 0; fail: @@ -1049,7 +1027,7 @@ static void hub_disconnect(struct usb_interface *intf) /* Disconnect all children and quiesce the hub */ hub->error = 0; - hub_stop(hub); + hub_quiesce(hub, HUB_DISCONNECT); usb_set_intfdata (intf, NULL); @@ -1075,6 +1053,12 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) desc = intf->cur_altsetting; hdev = interface_to_usbdev(intf); + if (hdev->level == MAX_TOPO_LEVEL) { + dev_err(&intf->dev, "Unsupported bus topology: " + "hub nested too deep\n"); + return -E2BIG; + } + #ifdef CONFIG_USB_OTG_BLACKLIST_HUB if (hdev->parent) { dev_warn(&intf->dev, "ignoring external hub\n"); @@ -1821,6 +1805,45 @@ static int hub_port_reset(struct usb_hub *hub, int port1, #ifdef CONFIG_PM +#define MASK_BITS (USB_PORT_STAT_POWER | USB_PORT_STAT_CONNECTION | \ + USB_PORT_STAT_SUSPEND) +#define WANT_BITS (USB_PORT_STAT_POWER | USB_PORT_STAT_CONNECTION) + +/* Determine whether the device on a port is ready for a normal resume, + * is ready for a reset-resume, or should be disconnected. + */ +static int check_port_resume_type(struct usb_device *udev, + struct usb_hub *hub, int port1, + int status, unsigned portchange, unsigned portstatus) +{ + /* Is the device still present? */ + if (status || (portstatus & MASK_BITS) != WANT_BITS) { + if (status >= 0) + status = -ENODEV; + } + + /* Can't do a normal resume if the port isn't enabled */ + else if (!(portstatus & USB_PORT_STAT_ENABLE) && !udev->reset_resume) + status = -ENODEV; + + if (status) { + dev_dbg(hub->intfdev, + "port %d status %04x.%04x after resume, %d\n", + port1, portchange, portstatus, status); + } else if (udev->reset_resume) { + + /* Late port handoff can set status-change bits */ + if (portchange & USB_PORT_STAT_C_CONNECTION) + clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_CONNECTION); + if (portchange & USB_PORT_STAT_C_ENABLE) + clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_ENABLE); + } + + return status; +} + #ifdef CONFIG_USB_SUSPEND /* @@ -1950,7 +1973,7 @@ static int finish_port_resume(struct usb_device *udev) * resumed. */ if (udev->reset_resume) - status = usb_reset_device(udev); + status = usb_reset_and_verify_device(udev); /* 10.5.4.5 says be sure devices in the tree are still there. * For now let's assume the device didn't go crazy on resume, @@ -2009,7 +2032,7 @@ static int finish_port_resume(struct usb_device *udev) * to it will be lost. Using the USB_PERSIST facility, the device can be * made to appear as if it had not disconnected. * - * This facility can be dangerous. Although usb_reset_device() makes + * This facility can be dangerous. Although usb_reset_and_verify_device() makes * every effort to insure that the same device is present after the * reset as before, it cannot provide a 100% guarantee. Furthermore it's * quite possible for a device to remain unaltered but its media to be @@ -2025,7 +2048,6 @@ int usb_port_resume(struct usb_device *udev) int port1 = udev->portnum; int status; u16 portchange, portstatus; - unsigned mask_flags, want_flags; /* Skip the initial Clear-Suspend step for a remote wakeup */ status = hub_port_status(hub, port1, &portstatus, &portchange); @@ -2054,33 +2076,20 @@ int usb_port_resume(struct usb_device *udev) */ status = hub_port_status(hub, port1, &portstatus, &portchange); - SuspendCleared: - if (udev->reset_resume) - want_flags = USB_PORT_STAT_POWER - | USB_PORT_STAT_CONNECTION; - else - want_flags = USB_PORT_STAT_POWER - | USB_PORT_STAT_CONNECTION - | USB_PORT_STAT_ENABLE; - mask_flags = want_flags | USB_PORT_STAT_SUSPEND; - - if (status < 0 || (portstatus & mask_flags) != want_flags) { - dev_dbg(hub->intfdev, - "port %d status %04x.%04x after resume, %d\n", - port1, portchange, portstatus, status); - if (status >= 0) - status = -ENODEV; - } else { - if (portchange & USB_PORT_STAT_C_SUSPEND) - clear_port_feature(hub->hdev, port1, - USB_PORT_FEAT_C_SUSPEND); - /* TRSMRCY = 10 msec */ - msleep(10); - } + /* TRSMRCY = 10 msec */ + msleep(10); } + SuspendCleared: + if (status == 0) { + if (portchange & USB_PORT_STAT_C_SUSPEND) + clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_SUSPEND); + } clear_bit(port1, hub->busy_bits); + status = check_port_resume_type(udev, + hub, port1, status, portchange, portstatus); if (status == 0) status = finish_port_resume(udev); if (status < 0) { @@ -2090,17 +2099,16 @@ int usb_port_resume(struct usb_device *udev) return status; } +/* caller has locked udev */ static int remote_wakeup(struct usb_device *udev) { int status = 0; - usb_lock_device(udev); if (udev->state == USB_STATE_SUSPENDED) { dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); usb_mark_last_busy(udev); status = usb_external_resume_device(udev); } - usb_unlock_device(udev); return status; } @@ -2113,14 +2121,25 @@ int usb_port_suspend(struct usb_device *udev) return 0; } +/* However we may need to do a reset-resume */ + int usb_port_resume(struct usb_device *udev) { - int status = 0; + struct usb_hub *hub = hdev_to_hub(udev->parent); + int port1 = udev->portnum; + int status; + u16 portchange, portstatus; - /* However we may need to do a reset-resume */ - if (udev->reset_resume) { + status = hub_port_status(hub, port1, &portstatus, &portchange); + status = check_port_resume_type(udev, + hub, port1, status, portchange, portstatus); + + if (status) { + dev_dbg(&udev->dev, "can't resume, status %d\n", status); + hub_port_logical_disconnect(hub, port1); + } else if (udev->reset_resume) { dev_dbg(&udev->dev, "reset-resume\n"); - status = usb_reset_device(udev); + status = usb_reset_and_verify_device(udev); } return status; } @@ -2154,7 +2173,7 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) dev_dbg(&intf->dev, "%s\n", __func__); /* stop khubd and related activity */ - hub_quiesce(hub); + hub_quiesce(hub, HUB_SUSPEND); return 0; } @@ -2163,7 +2182,7 @@ static int hub_resume(struct usb_interface *intf) struct usb_hub *hub = usb_get_intfdata(intf); dev_dbg(&intf->dev, "%s\n", __func__); - hub_restart(hub, HUB_RESUME); + hub_activate(hub, HUB_RESUME); return 0; } @@ -2172,8 +2191,7 @@ static int hub_reset_resume(struct usb_interface *intf) struct usb_hub *hub = usb_get_intfdata(intf); dev_dbg(&intf->dev, "%s\n", __func__); - hub_power_on(hub); - hub_restart(hub, HUB_RESET_RESUME); + hub_activate(hub, HUB_RESET_RESUME); return 0; } @@ -2223,11 +2241,6 @@ static inline int remote_wakeup(struct usb_device *udev) * every 25ms for transient disconnects. When the port status has been * unchanged for 100ms it returns the port status. */ - -#define HUB_DEBOUNCE_TIMEOUT 1500 -#define HUB_DEBOUNCE_STEP 25 -#define HUB_DEBOUNCE_STABLE 100 - static int hub_port_debounce(struct usb_hub *hub, int port1) { int ret; @@ -2307,7 +2320,7 @@ static int hub_set_address(struct usb_device *udev, int devnum) * Returns device in USB_STATE_ADDRESS, except on error. * * If this is called for an already-existing device (as part of - * usb_reset_device), the caller must own the device lock. For a + * usb_reset_and_verify_device), the caller must own the device lock. For a * newly detected device that is not accessible through any global * pointers, it's not necessary to lock the device. */ @@ -2624,7 +2637,7 @@ hub_power_remaining (struct usb_hub *hub) * This routine is called when: * a port connection-change occurs; * a port enable-change occurs (often caused by EMI); - * usb_reset_device() encounters changed descriptors (as from + * usb_reset_and_verify_device() encounters changed descriptors (as from * a firmware download) * caller already locked the hub */ @@ -2634,9 +2647,11 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, struct usb_device *hdev = hub->hdev; struct device *hub_dev = hub->intfdev; struct usb_hcd *hcd = bus_to_hcd(hdev->bus); - u16 wHubCharacteristics = le16_to_cpu(hub->descriptor->wHubCharacteristics); + unsigned wHubCharacteristics = + le16_to_cpu(hub->descriptor->wHubCharacteristics); + struct usb_device *udev; int status, i; - + dev_dbg (hub_dev, "port %d, status %04x, change %04x, %s\n", port1, portstatus, portchange, portspeed (portstatus)); @@ -2645,30 +2660,73 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, set_port_led(hub, port1, HUB_LED_AUTO); hub->indicator[port1-1] = INDICATOR_AUTO; } - - /* Disconnect any existing devices under this port */ - if (hdev->children[port1-1]) - usb_disconnect(&hdev->children[port1-1]); - clear_bit(port1, hub->change_bits); #ifdef CONFIG_USB_OTG /* during HNP, don't repeat the debounce */ if (hdev->bus->is_b_host) - portchange &= ~USB_PORT_STAT_C_CONNECTION; + portchange &= ~(USB_PORT_STAT_C_CONNECTION | + USB_PORT_STAT_C_ENABLE); #endif - if (portchange & USB_PORT_STAT_C_CONNECTION) { + /* Try to use the debounce delay for protection against + * port-enable changes caused, for example, by EMI. + */ + if (portchange & (USB_PORT_STAT_C_CONNECTION | + USB_PORT_STAT_C_ENABLE)) { status = hub_port_debounce(hub, port1); if (status < 0) { if (printk_ratelimit()) dev_err (hub_dev, "connect-debounce failed, " "port %d disabled\n", port1); - goto done; + portstatus &= ~USB_PORT_STAT_CONNECTION; + } else { + portstatus = status; + } + } + + /* Try to resuscitate an existing device */ + udev = hdev->children[port1-1]; + if ((portstatus & USB_PORT_STAT_CONNECTION) && udev && + udev->state != USB_STATE_NOTATTACHED) { + + usb_lock_device(udev); + if (portstatus & USB_PORT_STAT_ENABLE) { + status = 0; /* Nothing to do */ + } else if (!udev->persist_enabled) { + status = -ENODEV; /* Mustn't resuscitate */ + +#ifdef CONFIG_USB_SUSPEND + } else if (udev->state == USB_STATE_SUSPENDED) { + /* For a suspended device, treat this as a + * remote wakeup event. + */ + if (udev->do_remote_wakeup) + status = remote_wakeup(udev); + + /* Otherwise leave it be; devices can't tell the + * difference between suspended and disabled. + */ + else + status = 0; +#endif + + } else { + status = usb_reset_device(udev); + } + usb_unlock_device(udev); + + if (status == 0) { + clear_bit(port1, hub->change_bits); + return; } - portstatus = status; } - /* Return now if nothing is connected */ + /* Disconnect any existing devices under this port */ + if (udev) + usb_disconnect(&hdev->children[port1-1]); + clear_bit(port1, hub->change_bits); + + /* Return now if debouncing failed or nothing is connected */ if (!(portstatus & USB_PORT_STAT_CONNECTION)) { /* maybe switch power back on (e.g. root hub was reset) */ @@ -2682,7 +2740,6 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, } for (i = 0; i < SET_CONFIG_TRIES; i++) { - struct usb_device *udev; /* reallocate for each attempt, since references * to the previous one can escape in various ways @@ -2863,7 +2920,7 @@ static void hub_events(void) /* If the hub has died, clean up after it */ if (hdev->state == USB_STATE_NOTATTACHED) { hub->error = -ENODEV; - hub_stop(hub); + hub_quiesce(hub, HUB_DISCONNECT); goto loop; } @@ -2882,7 +2939,7 @@ static void hub_events(void) dev_dbg (hub_dev, "resetting for error %d\n", hub->error); - ret = usb_reset_composite_device(hdev, intf); + ret = usb_reset_device(hdev); if (ret) { dev_dbg (hub_dev, "error resetting hub: %d\n", ret); @@ -2899,7 +2956,7 @@ static void hub_events(void) continue; connect_change = test_bit(i, hub->change_bits); if (!test_and_clear_bit(i, hub->event_bits) && - !connect_change && !hub->activating) + !connect_change) continue; ret = hub_port_status(hub, i, @@ -2907,11 +2964,6 @@ static void hub_events(void) if (ret < 0) continue; - if (hub->activating && !hdev->children[i-1] && - (portstatus & - USB_PORT_STAT_CONNECTION)) - connect_change = 1; - if (portchange & USB_PORT_STAT_C_CONNECTION) { clear_port_feature(hdev, i, USB_PORT_FEAT_C_CONNECTION); @@ -2946,11 +2998,16 @@ static void hub_events(void) } if (portchange & USB_PORT_STAT_C_SUSPEND) { + struct usb_device *udev; + clear_port_feature(hdev, i, USB_PORT_FEAT_C_SUSPEND); - if (hdev->children[i-1]) { + udev = hdev->children[i-1]; + if (udev) { + usb_lock_device(udev); ret = remote_wakeup(hdev-> children[i-1]); + usb_unlock_device(udev); if (ret < 0) connect_change = 1; } else { @@ -3007,8 +3064,6 @@ static void hub_events(void) } } - hub->activating = 0; - loop_autopm: /* Allow autosuspend if we're not going to run again */ if (list_empty(&hub->event_list)) @@ -3172,12 +3227,12 @@ static int descriptors_changed(struct usb_device *udev, } /** - * usb_reset_device - perform a USB port reset to reinitialize a device + * usb_reset_and_verify_device - perform a USB port reset to reinitialize a device * @udev: device to reset (not in SUSPENDED or NOTATTACHED state) * * WARNING - don't use this routine to reset a composite device * (one with multiple interfaces owned by separate drivers)! - * Use usb_reset_composite_device() instead. + * Use usb_reset_device() instead. * * Do a port reset, reassign the device's address, and establish its * former operating configuration. If the reset fails, or the device's @@ -3201,7 +3256,7 @@ static int descriptors_changed(struct usb_device *udev, * holding the device lock because these tasks should always call * usb_autopm_resume_device(), thereby preventing any unwanted autoresume. */ -int usb_reset_device(struct usb_device *udev) +static int usb_reset_and_verify_device(struct usb_device *udev) { struct usb_device *parent_hdev = udev->parent; struct usb_hub *parent_hub; @@ -3287,26 +3342,23 @@ re_enumerate: hub_port_logical_disconnect(parent_hub, port1); return -ENODEV; } -EXPORT_SYMBOL_GPL(usb_reset_device); /** - * usb_reset_composite_device - warn interface drivers and perform a USB port reset + * usb_reset_device - warn interface drivers and perform a USB port reset * @udev: device to reset (not in SUSPENDED or NOTATTACHED state) - * @iface: interface bound to the driver making the request (optional) * * Warns all drivers bound to registered interfaces (using their pre_reset * method), performs the port reset, and then lets the drivers know that * the reset is over (using their post_reset method). * - * Return value is the same as for usb_reset_device(). + * Return value is the same as for usb_reset_and_verify_device(). * * The caller must own the device lock. For example, it's safe to use * this from a driver probe() routine after downloading new firmware. * For calls that might not occur during probe(), drivers should lock * the device using usb_lock_device_for_reset(). */ -int usb_reset_composite_device(struct usb_device *udev, - struct usb_interface *iface) +int usb_reset_device(struct usb_device *udev) { int ret; int i; @@ -3322,9 +3374,6 @@ int usb_reset_composite_device(struct usb_device *udev, /* Prevent autosuspend during the reset */ usb_autoresume_device(udev); - if (iface && iface->condition != USB_INTERFACE_BINDING) - iface = NULL; - if (config) { for (i = 0; i < config->desc.bNumInterfaces; ++i) { struct usb_interface *cintf = config->interface[i]; @@ -3339,7 +3388,7 @@ int usb_reset_composite_device(struct usb_device *udev, } } - ret = usb_reset_device(udev); + ret = usb_reset_and_verify_device(udev); if (config) { for (i = config->desc.bNumInterfaces - 1; i >= 0; --i) { @@ -3358,4 +3407,87 @@ int usb_reset_composite_device(struct usb_device *udev, usb_autosuspend_device(udev); return ret; } -EXPORT_SYMBOL_GPL(usb_reset_composite_device); +EXPORT_SYMBOL_GPL(usb_reset_device); + +/* Support for delayed resets */ +struct usb_dev_reset_ctx { + struct work_struct ws; + struct usb_device *usb_dev; +}; + +/* + * We need to lock the device before resetting, but we may already have the + * lock. So we try to lock the device, if it fails (returns < 0) then we + * cannot proceed. If it returned 1 then we acquired the lock here and need + * to release the lock. If it returned 0 then we already have the lock and + * we leave it to the piece that acquired the lock to release it. + */ +static void usb_dev_reset_delayed_task(struct work_struct *ws) +{ + struct usb_dev_reset_ctx *reset_ctx = + container_of(ws, struct usb_dev_reset_ctx, ws); + struct usb_device *usb_dev = reset_ctx->usb_dev; + struct device *dev = &usb_dev->dev; + int had_to_lock; + int result = 0; + + had_to_lock = usb_lock_device_for_reset(usb_dev, NULL); + if (had_to_lock < 0) { + if (had_to_lock != -ENODEV) /* ignore dissapearance */ + dev_err(dev, "Cannot lock device for reset: %d\n", + had_to_lock); + } else { + result = usb_reset_device(usb_dev); + if (result < 0 && result != -ENODEV) + dev_err(dev, "Unable to reset device: %d\n", result); + if (had_to_lock) + usb_unlock_device(usb_dev); + } + usb_dev->delayed_reset = 0; + usb_put_dev(usb_dev); + module_put(THIS_MODULE); + kfree(reset_ctx); +} + +/** + * usb_dev_reset_delayed: Schedule a delayed USB device reset + * @usb_dev: USB device that needs to be reset. We assume you have a valid + * reference on it (so it won't dissapear) until we take another one that + * we'll own. + * + * Allocates a context structure containing a workqueue struct with + * all the pertinent info; gets a reference to @usb_dev and schedules + * the call that will be executed later on. + * + * NOTE: for use in atomic contexts + */ +void usb_dev_reset_delayed(struct usb_device *usb_dev) +{ + struct usb_dev_reset_ctx *reset_ctx; + struct device *dev = &usb_dev->dev; + reset_ctx = kmalloc(sizeof(*reset_ctx), GFP_ATOMIC); + if (reset_ctx == NULL) { + if (printk_ratelimit()) + dev_err(dev, "USB: cannot allocate memory for " + "delayed device reset\n"); + return; + } + if (try_module_get(THIS_MODULE) == 0) + goto error_module_get; + usb_get_dev(usb_dev); + if (usb_dev->delayed_reset) + goto error_pending; + usb_dev->delayed_reset = 1; + reset_ctx->usb_dev = usb_dev; + INIT_WORK(&reset_ctx->ws, usb_dev_reset_delayed_task); + schedule_work(&reset_ctx->ws); + return; + +error_pending: + usb_put_dev(usb_dev); + module_put(THIS_MODULE); +error_module_get: + kfree(reset_ctx); + return; +} +EXPORT_SYMBOL_GPL(usb_dev_reset_delayed); diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index fe47d145255a..2fcc06eb5e60 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -400,7 +400,7 @@ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev, if (usb_pipein(pipe)) urb_flags |= URB_SHORT_NOT_OK; - for (i = 0; i < io->entries; i++) { + for_each_sg(sg, sg, io->entries, i) { unsigned len; io->urbs[i] = usb_alloc_urb(0, mem_flags); @@ -434,17 +434,17 @@ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev, * to prevent stale pointers and to help spot bugs. */ if (dma) { - io->urbs[i]->transfer_dma = sg_dma_address(sg + i); - len = sg_dma_len(sg + i); + io->urbs[i]->transfer_dma = sg_dma_address(sg); + len = sg_dma_len(sg); #if defined(CONFIG_HIGHMEM) || defined(CONFIG_GART_IOMMU) io->urbs[i]->transfer_buffer = NULL; #else - io->urbs[i]->transfer_buffer = sg_virt(&sg[i]); + io->urbs[i]->transfer_buffer = sg_virt(sg); #endif } else { /* hc may use _only_ transfer_buffer */ - io->urbs[i]->transfer_buffer = sg_virt(&sg[i]); - len = sg[i].length; + io->urbs[i]->transfer_buffer = sg_virt(sg); + len = sg->length; } if (length) { @@ -1090,7 +1090,7 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) if (!device_is_registered(&interface->dev)) continue; dev_dbg(&dev->dev, "unregistering interface %s\n", - interface->dev.bus_id); + dev_name(&interface->dev)); device_del(&interface->dev); usb_remove_sysfs_intf_files(interface); } @@ -1476,7 +1476,7 @@ static struct usb_interface_assoc_descriptor *find_iad(struct usb_device *dev, * * This call is synchronous. The calling context must be able to sleep, * must own the device lock, and must not hold the driver model's USB - * bus mutex; usb device driver probe() methods cannot use this routine. + * bus mutex; usb interface driver probe() methods cannot use this routine. * * Returns zero on success, or else the status code returned by the * underlying call that failed. On successful completion, each interface @@ -1611,7 +1611,7 @@ free_interfaces: intf->dev.dma_mask = dev->dev.dma_mask; device_initialize(&intf->dev); mark_quiesced(intf); - sprintf(&intf->dev.bus_id[0], "%d-%s:%d.%d", + dev_set_name(&intf->dev, "%d-%s:%d.%d", dev->bus->busnum, dev->devpath, configuration, alt->desc.bInterfaceNumber); } @@ -1631,12 +1631,12 @@ free_interfaces: dev_dbg(&dev->dev, "adding %s (config #%d, interface %d)\n", - intf->dev.bus_id, configuration, + dev_name(&intf->dev), configuration, intf->cur_altsetting->desc.bInterfaceNumber); ret = device_add(&intf->dev); if (ret != 0) { dev_err(&dev->dev, "device_add(%s) --> %d\n", - intf->dev.bus_id, ret); + dev_name(&intf->dev), ret); continue; } usb_create_sysfs_intf_files(intf); diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 325774375837..84fcaa6a21ec 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -308,7 +308,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent, * by location for diagnostics, tools, driver model, etc. The * string is a path along hub ports, from the root. Each device's * dev->devpath will be stable until USB is re-cabled, and hubs - * are often labeled with these port numbers. The bus_id isn't + * are often labeled with these port numbers. The name isn't * as stable: bus->busnum changes easily from modprobe order, * cardbus or pci hotplugging, and so on. */ @@ -316,7 +316,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent, dev->devpath[0] = '0'; dev->dev.parent = bus->controller; - sprintf(&dev->dev.bus_id[0], "usb%d", bus->busnum); + dev_set_name(&dev->dev, "usb%d", bus->busnum); root_hub = 1; } else { /* match any labeling on the hubs; it's one-based */ @@ -328,8 +328,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent, "%s.%d", parent->devpath, port1); dev->dev.parent = &parent->dev; - sprintf(&dev->dev.bus_id[0], "%d-%s", - bus->busnum, dev->devpath); + dev_set_name(&dev->dev, "%d-%s", bus->busnum, dev->devpath); /* hub driver sets up TT records */ } diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 12357255d740..37008b8f2c72 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -22,9 +22,11 @@ obj-$(CONFIG_USB_M66592) += m66592-udc.o # # USB gadget drivers # -g_zero-objs := zero.o usbstring.o config.o epautoconf.o +C_UTILS = composite.o usbstring.o config.o epautoconf.o + +g_zero-objs := zero.o f_sourcesink.o f_loopback.o $(C_UTILS) g_ether-objs := ether.o usbstring.o config.o epautoconf.o -g_serial-objs := serial.o usbstring.o config.o epautoconf.o +g_serial-objs := serial.o u_serial.o f_acm.o f_serial.o $(C_UTILS) g_midi-objs := gmidi.o usbstring.o config.o epautoconf.o gadgetfs-objs := inode.o g_file_storage-objs := file_storage.o usbstring.o config.o \ diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index f261d2a9a5f0..1500e1b3c302 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -3342,7 +3342,7 @@ static int udc_probe(struct udc *dev) spin_lock_init(&dev->lock); dev->gadget.ops = &udc_ops; - strcpy(dev->gadget.dev.bus_id, "gadget"); + dev_set_name(&dev->gadget.dev, "gadget"); dev->gadget.dev.release = gadget_release; dev->gadget.name = name; dev->gadget.name = name; diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 274c60a970cd..856255f21b79 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1687,6 +1687,19 @@ static int __init at91udc_probe(struct platform_device *pdev) udc->board.pullup_active_low); } + /* newer chips have more FIFO memory than rm9200 */ + if (cpu_is_at91sam9260()) { + udc->ep[0].maxpacket = 64; + udc->ep[3].maxpacket = 64; + udc->ep[4].maxpacket = 512; + udc->ep[5].maxpacket = 512; + } else if (cpu_is_at91sam9261()) { + udc->ep[3].maxpacket = 64; + } else if (cpu_is_at91sam9263()) { + udc->ep[0].maxpacket = 64; + udc->ep[3].maxpacket = 64; + } + udc->udp_baseaddr = ioremap(res->start, res->end - res->start + 1); if (!udc->udp_baseaddr) { retval = -ENOMEM; diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c new file mode 100644 index 000000000000..09ba41e5f7f8 --- /dev/null +++ b/drivers/usb/gadget/composite.c @@ -0,0 +1,1041 @@ +/* + * composite.c - infrastructure for Composite USB Gadgets + * + * Copyright (C) 2006-2008 David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* #define VERBOSE_DEBUG */ + +#include <linux/kallsyms.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/device.h> + +#include <linux/usb/composite.h> + + +/* + * The code in this file is utility code, used to build a gadget driver + * from one or more "function" drivers, one or more "configuration" + * objects, and a "usb_composite_driver" by gluing them together along + * with the relevant device-wide data. + */ + +/* big enough to hold our biggest descriptor */ +#define USB_BUFSIZ 512 + +static struct usb_composite_driver *composite; + +/* Some systems will need runtime overrides for the product identifers + * published in the device descriptor, either numbers or strings or both. + * String parameters are in UTF-8 (superset of ASCII's 7 bit characters). + */ + +static ushort idVendor; +module_param(idVendor, ushort, 0); +MODULE_PARM_DESC(idVendor, "USB Vendor ID"); + +static ushort idProduct; +module_param(idProduct, ushort, 0); +MODULE_PARM_DESC(idProduct, "USB Product ID"); + +static ushort bcdDevice; +module_param(bcdDevice, ushort, 0); +MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)"); + +static char *iManufacturer; +module_param(iManufacturer, charp, 0); +MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string"); + +static char *iProduct; +module_param(iProduct, charp, 0); +MODULE_PARM_DESC(iProduct, "USB Product string"); + +static char *iSerialNumber; +module_param(iSerialNumber, charp, 0); +MODULE_PARM_DESC(iSerialNumber, "SerialNumber string"); + +/*-------------------------------------------------------------------------*/ + +/** + * usb_add_function() - add a function to a configuration + * @config: the configuration + * @function: the function being added + * Context: single threaded during gadget setup + * + * After initialization, each configuration must have one or more + * functions added to it. Adding a function involves calling its @bind() + * method to allocate resources such as interface and string identifiers + * and endpoints. + * + * This function returns the value of the function's bind(), which is + * zero for success else a negative errno value. + */ +int __init usb_add_function(struct usb_configuration *config, + struct usb_function *function) +{ + int value = -EINVAL; + + DBG(config->cdev, "adding '%s'/%p to config '%s'/%p\n", + function->name, function, + config->label, config); + + if (!function->set_alt || !function->disable) + goto done; + + function->config = config; + list_add_tail(&function->list, &config->functions); + + /* REVISIT *require* function->bind? */ + if (function->bind) { + value = function->bind(config, function); + if (value < 0) { + list_del(&function->list); + function->config = NULL; + } + } else + value = 0; + + /* We allow configurations that don't work at both speeds. + * If we run into a lowspeed Linux system, treat it the same + * as full speed ... it's the function drivers that will need + * to avoid bulk and ISO transfers. + */ + if (!config->fullspeed && function->descriptors) + config->fullspeed = true; + if (!config->highspeed && function->hs_descriptors) + config->highspeed = true; + +done: + if (value) + DBG(config->cdev, "adding '%s'/%p --> %d\n", + function->name, function, value); + return value; +} + +/** + * usb_interface_id() - allocate an unused interface ID + * @config: configuration associated with the interface + * @function: function handling the interface + * Context: single threaded during gadget setup + * + * usb_interface_id() is called from usb_function.bind() callbacks to + * allocate new interface IDs. The function driver will then store that + * ID in interface, association, CDC union, and other descriptors. It + * will also handle any control requests targetted at that interface, + * particularly changing its altsetting via set_alt(). There may + * also be class-specific or vendor-specific requests to handle. + * + * All interface identifier should be allocated using this routine, to + * ensure that for example different functions don't wrongly assign + * different meanings to the same identifier. Note that since interface + * identifers are configuration-specific, functions used in more than + * one configuration (or more than once in a given configuration) need + * multiple versions of the relevant descriptors. + * + * Returns the interface ID which was allocated; or -ENODEV if no + * more interface IDs can be allocated. + */ +int __init usb_interface_id(struct usb_configuration *config, + struct usb_function *function) +{ + unsigned id = config->next_interface_id; + + if (id < MAX_CONFIG_INTERFACES) { + config->interface[id] = function; + config->next_interface_id = id + 1; + return id; + } + return -ENODEV; +} + +static int config_buf(struct usb_configuration *config, + enum usb_device_speed speed, void *buf, u8 type) +{ + struct usb_config_descriptor *c = buf; + void *next = buf + USB_DT_CONFIG_SIZE; + int len = USB_BUFSIZ - USB_DT_CONFIG_SIZE; + struct usb_function *f; + int status; + + /* write the config descriptor */ + c = buf; + c->bLength = USB_DT_CONFIG_SIZE; + c->bDescriptorType = type; + /* wTotalLength is written later */ + c->bNumInterfaces = config->next_interface_id; + c->bConfigurationValue = config->bConfigurationValue; + c->iConfiguration = config->iConfiguration; + c->bmAttributes = USB_CONFIG_ATT_ONE | config->bmAttributes; + c->bMaxPower = config->bMaxPower; + + /* There may be e.g. OTG descriptors */ + if (config->descriptors) { + status = usb_descriptor_fillbuf(next, len, + config->descriptors); + if (status < 0) + return status; + len -= status; + next += status; + } + + /* add each function's descriptors */ + list_for_each_entry(f, &config->functions, list) { + struct usb_descriptor_header **descriptors; + + if (speed == USB_SPEED_HIGH) + descriptors = f->hs_descriptors; + else + descriptors = f->descriptors; + if (!descriptors) + continue; + status = usb_descriptor_fillbuf(next, len, + (const struct usb_descriptor_header **) descriptors); + if (status < 0) + return status; + len -= status; + next += status; + } + + len = next - buf; + c->wTotalLength = cpu_to_le16(len); + return len; +} + +static int config_desc(struct usb_composite_dev *cdev, unsigned w_value) +{ + struct usb_gadget *gadget = cdev->gadget; + struct usb_configuration *c; + u8 type = w_value >> 8; + enum usb_device_speed speed = USB_SPEED_UNKNOWN; + + if (gadget_is_dualspeed(gadget)) { + int hs = 0; + + if (gadget->speed == USB_SPEED_HIGH) + hs = 1; + if (type == USB_DT_OTHER_SPEED_CONFIG) + hs = !hs; + if (hs) + speed = USB_SPEED_HIGH; + + } + + /* This is a lookup by config *INDEX* */ + w_value &= 0xff; + list_for_each_entry(c, &cdev->configs, list) { + /* ignore configs that won't work at this speed */ + if (speed == USB_SPEED_HIGH) { + if (!c->highspeed) + continue; + } else { + if (!c->fullspeed) + continue; + } + if (w_value == 0) + return config_buf(c, speed, cdev->req->buf, type); + w_value--; + } + return -EINVAL; +} + +static int count_configs(struct usb_composite_dev *cdev, unsigned type) +{ + struct usb_gadget *gadget = cdev->gadget; + struct usb_configuration *c; + unsigned count = 0; + int hs = 0; + + if (gadget_is_dualspeed(gadget)) { + if (gadget->speed == USB_SPEED_HIGH) + hs = 1; + if (type == USB_DT_DEVICE_QUALIFIER) + hs = !hs; + } + list_for_each_entry(c, &cdev->configs, list) { + /* ignore configs that won't work at this speed */ + if (hs) { + if (!c->highspeed) + continue; + } else { + if (!c->fullspeed) + continue; + } + count++; + } + return count; +} + +static void device_qual(struct usb_composite_dev *cdev) +{ + struct usb_qualifier_descriptor *qual = cdev->req->buf; + + qual->bLength = sizeof(*qual); + qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; + /* POLICY: same bcdUSB and device type info at both speeds */ + qual->bcdUSB = cdev->desc.bcdUSB; + qual->bDeviceClass = cdev->desc.bDeviceClass; + qual->bDeviceSubClass = cdev->desc.bDeviceSubClass; + qual->bDeviceProtocol = cdev->desc.bDeviceProtocol; + /* ASSUME same EP0 fifo size at both speeds */ + qual->bMaxPacketSize0 = cdev->desc.bMaxPacketSize0; + qual->bNumConfigurations = count_configs(cdev, USB_DT_DEVICE_QUALIFIER); +} + +/*-------------------------------------------------------------------------*/ + +static void reset_config(struct usb_composite_dev *cdev) +{ + struct usb_function *f; + + DBG(cdev, "reset config\n"); + + list_for_each_entry(f, &cdev->config->functions, list) { + if (f->disable) + f->disable(f); + } + cdev->config = NULL; +} + +static int set_config(struct usb_composite_dev *cdev, + const struct usb_ctrlrequest *ctrl, unsigned number) +{ + struct usb_gadget *gadget = cdev->gadget; + struct usb_configuration *c = NULL; + int result = -EINVAL; + unsigned power = gadget_is_otg(gadget) ? 8 : 100; + int tmp; + + if (cdev->config) + reset_config(cdev); + + if (number) { + list_for_each_entry(c, &cdev->configs, list) { + if (c->bConfigurationValue == number) { + result = 0; + break; + } + } + if (result < 0) + goto done; + } else + result = 0; + + INFO(cdev, "%s speed config #%d: %s\n", + ({ char *speed; + switch (gadget->speed) { + case USB_SPEED_LOW: speed = "low"; break; + case USB_SPEED_FULL: speed = "full"; break; + case USB_SPEED_HIGH: speed = "high"; break; + default: speed = "?"; break; + } ; speed; }), number, c ? c->label : ""); + + if (!c) + goto done; + + cdev->config = c; + + /* Initialize all interfaces by setting them to altsetting zero. */ + for (tmp = 0; tmp < MAX_CONFIG_INTERFACES; tmp++) { + struct usb_function *f = c->interface[tmp]; + + if (!f) + break; + + result = f->set_alt(f, tmp, 0); + if (result < 0) { + DBG(cdev, "interface %d (%s/%p) alt 0 --> %d\n", + tmp, f->name, f, result); + + reset_config(cdev); + goto done; + } + } + + /* when we return, be sure our power usage is valid */ + power = 2 * c->bMaxPower; +done: + usb_gadget_vbus_draw(gadget, power); + return result; +} + +/** + * usb_add_config() - add a configuration to a device. + * @cdev: wraps the USB gadget + * @config: the configuration, with bConfigurationValue assigned + * Context: single threaded during gadget setup + * + * One of the main tasks of a composite driver's bind() routine is to + * add each of the configurations it supports, using this routine. + * + * This function returns the value of the configuration's bind(), which + * is zero for success else a negative errno value. Binding configurations + * assigns global resources including string IDs, and per-configuration + * resources such as interface IDs and endpoints. + */ +int __init usb_add_config(struct usb_composite_dev *cdev, + struct usb_configuration *config) +{ + int status = -EINVAL; + struct usb_configuration *c; + + DBG(cdev, "adding config #%u '%s'/%p\n", + config->bConfigurationValue, + config->label, config); + + if (!config->bConfigurationValue || !config->bind) + goto done; + + /* Prevent duplicate configuration identifiers */ + list_for_each_entry(c, &cdev->configs, list) { + if (c->bConfigurationValue == config->bConfigurationValue) { + status = -EBUSY; + goto done; + } + } + + config->cdev = cdev; + list_add_tail(&config->list, &cdev->configs); + + INIT_LIST_HEAD(&config->functions); + config->next_interface_id = 0; + + status = config->bind(config); + if (status < 0) { + list_del(&config->list); + config->cdev = NULL; + } else { + unsigned i; + + DBG(cdev, "cfg %d/%p speeds:%s%s\n", + config->bConfigurationValue, config, + config->highspeed ? " high" : "", + config->fullspeed + ? (gadget_is_dualspeed(cdev->gadget) + ? " full" + : " full/low") + : ""); + + for (i = 0; i < MAX_CONFIG_INTERFACES; i++) { + struct usb_function *f = config->interface[i]; + + if (!f) + continue; + DBG(cdev, " interface %d = %s/%p\n", + i, f->name, f); + } + } + + /* set_alt(), or next config->bind(), sets up + * ep->driver_data as needed. + */ + usb_ep_autoconfig_reset(cdev->gadget); + +done: + if (status) + DBG(cdev, "added config '%s'/%u --> %d\n", config->label, + config->bConfigurationValue, status); + return status; +} + +/*-------------------------------------------------------------------------*/ + +/* We support strings in multiple languages ... string descriptor zero + * says which languages are supported. The typical case will be that + * only one language (probably English) is used, with I18N handled on + * the host side. + */ + +static void collect_langs(struct usb_gadget_strings **sp, __le16 *buf) +{ + const struct usb_gadget_strings *s; + u16 language; + __le16 *tmp; + + while (*sp) { + s = *sp; + language = cpu_to_le16(s->language); + for (tmp = buf; *tmp && tmp < &buf[126]; tmp++) { + if (*tmp == language) + goto repeat; + } + *tmp++ = language; +repeat: + sp++; + } +} + +static int lookup_string( + struct usb_gadget_strings **sp, + void *buf, + u16 language, + int id +) +{ + struct usb_gadget_strings *s; + int value; + + while (*sp) { + s = *sp++; + if (s->language != language) + continue; + value = usb_gadget_get_string(s, id, buf); + if (value > 0) + return value; + } + return -EINVAL; +} + +static int get_string(struct usb_composite_dev *cdev, + void *buf, u16 language, int id) +{ + struct usb_configuration *c; + struct usb_function *f; + int len; + + /* Yes, not only is USB's I18N support probably more than most + * folk will ever care about ... also, it's all supported here. + * (Except for UTF8 support for Unicode's "Astral Planes".) + */ + + /* 0 == report all available language codes */ + if (id == 0) { + struct usb_string_descriptor *s = buf; + struct usb_gadget_strings **sp; + + memset(s, 0, 256); + s->bDescriptorType = USB_DT_STRING; + + sp = composite->strings; + if (sp) + collect_langs(sp, s->wData); + + list_for_each_entry(c, &cdev->configs, list) { + sp = c->strings; + if (sp) + collect_langs(sp, s->wData); + + list_for_each_entry(f, &c->functions, list) { + sp = f->strings; + if (sp) + collect_langs(sp, s->wData); + } + } + + for (len = 0; s->wData[len] && len <= 126; len++) + continue; + if (!len) + return -EINVAL; + + s->bLength = 2 * (len + 1); + return s->bLength; + } + + /* Otherwise, look up and return a specified string. String IDs + * are device-scoped, so we look up each string table we're told + * about. These lookups are infrequent; simpler-is-better here. + */ + if (composite->strings) { + len = lookup_string(composite->strings, buf, language, id); + if (len > 0) + return len; + } + list_for_each_entry(c, &cdev->configs, list) { + if (c->strings) { + len = lookup_string(c->strings, buf, language, id); + if (len > 0) + return len; + } + list_for_each_entry(f, &c->functions, list) { + if (!f->strings) + continue; + len = lookup_string(f->strings, buf, language, id); + if (len > 0) + return len; + } + } + return -EINVAL; +} + +/** + * usb_string_id() - allocate an unused string ID + * @cdev: the device whose string descriptor IDs are being allocated + * Context: single threaded during gadget setup + * + * @usb_string_id() is called from bind() callbacks to allocate + * string IDs. Drivers for functions, configurations, or gadgets will + * then store that ID in the appropriate descriptors and string table. + * + * All string identifier should be allocated using this routine, to + * ensure that for example different functions don't wrongly assign + * different meanings to the same identifier. + */ +int __init usb_string_id(struct usb_composite_dev *cdev) +{ + if (cdev->next_string_id < 254) { + /* string id 0 is reserved */ + cdev->next_string_id++; + return cdev->next_string_id; + } + return -ENODEV; +} + +/*-------------------------------------------------------------------------*/ + +static void composite_setup_complete(struct usb_ep *ep, struct usb_request *req) +{ + if (req->status || req->actual != req->length) + DBG((struct usb_composite_dev *) ep->driver_data, + "setup complete --> %d, %d/%d\n", + req->status, req->actual, req->length); +} + +/* + * The setup() callback implements all the ep0 functionality that's + * not handled lower down, in hardware or the hardware driver(like + * device and endpoint feature flags, and their status). It's all + * housekeeping for the gadget function we're implementing. Most of + * the work is in config and function specific setup. + */ +static int +composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + struct usb_request *req = cdev->req; + int value = -EOPNOTSUPP; + u16 w_index = le16_to_cpu(ctrl->wIndex); + u16 w_value = le16_to_cpu(ctrl->wValue); + u16 w_length = le16_to_cpu(ctrl->wLength); + struct usb_function *f = NULL; + + /* partial re-init of the response message; the function or the + * gadget might need to intercept e.g. a control-OUT completion + * when we delegate to it. + */ + req->zero = 0; + req->complete = composite_setup_complete; + req->length = USB_BUFSIZ; + gadget->ep0->driver_data = cdev; + + switch (ctrl->bRequest) { + + /* we handle all standard USB descriptors */ + case USB_REQ_GET_DESCRIPTOR: + if (ctrl->bRequestType != USB_DIR_IN) + goto unknown; + switch (w_value >> 8) { + + case USB_DT_DEVICE: + cdev->desc.bNumConfigurations = + count_configs(cdev, USB_DT_DEVICE); + value = min(w_length, (u16) sizeof cdev->desc); + memcpy(req->buf, &cdev->desc, value); + break; + case USB_DT_DEVICE_QUALIFIER: + if (!gadget_is_dualspeed(gadget)) + break; + device_qual(cdev); + value = min_t(int, w_length, + sizeof(struct usb_qualifier_descriptor)); + break; + case USB_DT_OTHER_SPEED_CONFIG: + if (!gadget_is_dualspeed(gadget)) + break; + /* FALLTHROUGH */ + case USB_DT_CONFIG: + value = config_desc(cdev, w_value); + if (value >= 0) + value = min(w_length, (u16) value); + break; + case USB_DT_STRING: + value = get_string(cdev, req->buf, + w_index, w_value & 0xff); + if (value >= 0) + value = min(w_length, (u16) value); + break; + } + break; + + /* any number of configs can work */ + case USB_REQ_SET_CONFIGURATION: + if (ctrl->bRequestType != 0) + goto unknown; + if (gadget_is_otg(gadget)) { + if (gadget->a_hnp_support) + DBG(cdev, "HNP available\n"); + else if (gadget->a_alt_hnp_support) + DBG(cdev, "HNP on another port\n"); + else + VDBG(cdev, "HNP inactive\n"); + } + spin_lock(&cdev->lock); + value = set_config(cdev, ctrl, w_value); + spin_unlock(&cdev->lock); + break; + case USB_REQ_GET_CONFIGURATION: + if (ctrl->bRequestType != USB_DIR_IN) + goto unknown; + if (cdev->config) + *(u8 *)req->buf = cdev->config->bConfigurationValue; + else + *(u8 *)req->buf = 0; + value = min(w_length, (u16) 1); + break; + + /* function drivers must handle get/set altsetting; if there's + * no get() method, we know only altsetting zero works. + */ + case USB_REQ_SET_INTERFACE: + if (ctrl->bRequestType != USB_RECIP_INTERFACE) + goto unknown; + if (!cdev->config || w_index >= MAX_CONFIG_INTERFACES) + break; + f = cdev->config->interface[w_index]; + if (!f) + break; + if (w_value && !f->get_alt) + break; + value = f->set_alt(f, w_index, w_value); + break; + case USB_REQ_GET_INTERFACE: + if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) + goto unknown; + if (!cdev->config || w_index >= MAX_CONFIG_INTERFACES) + break; + f = cdev->config->interface[w_index]; + if (!f) + break; + /* lots of interfaces only need altsetting zero... */ + value = f->get_alt ? f->get_alt(f, w_index) : 0; + if (value < 0) + break; + *((u8 *)req->buf) = value; + value = min(w_length, (u16) 1); + break; + default: +unknown: + VDBG(cdev, + "non-core control req%02x.%02x v%04x i%04x l%d\n", + ctrl->bRequestType, ctrl->bRequest, + w_value, w_index, w_length); + + /* functions always handle their interfaces ... punt other + * recipients (endpoint, other, WUSB, ...) to the current + * configuration code. + * + * REVISIT it could make sense to let the composite device + * take such requests too, if that's ever needed: to work + * in config 0, etc. + */ + if ((ctrl->bRequestType & USB_RECIP_MASK) + == USB_RECIP_INTERFACE) { + f = cdev->config->interface[w_index]; + if (f && f->setup) + value = f->setup(f, ctrl); + else + f = NULL; + } + if (value < 0 && !f) { + struct usb_configuration *c; + + c = cdev->config; + if (c && c->setup) + value = c->setup(c, ctrl); + } + + goto done; + } + + /* respond with data transfer before status phase? */ + if (value >= 0) { + req->length = value; + req->zero = value < w_length; + value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC); + if (value < 0) { + DBG(cdev, "ep_queue --> %d\n", value); + req->status = 0; + composite_setup_complete(gadget->ep0, req); + } + } + +done: + /* device either stalls (value < 0) or reports success */ + return value; +} + +static void composite_disconnect(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + unsigned long flags; + + /* REVISIT: should we have config and device level + * disconnect callbacks? + */ + spin_lock_irqsave(&cdev->lock, flags); + if (cdev->config) + reset_config(cdev); + spin_unlock_irqrestore(&cdev->lock, flags); +} + +/*-------------------------------------------------------------------------*/ + +static void /* __init_or_exit */ +composite_unbind(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + unsigned long flags; + + /* composite_disconnect() must already have been called + * by the underlying peripheral controller driver! + */ + WARN_ON(cdev->config); + + spin_lock_irqsave(&cdev->lock, flags); + while (!list_empty(&cdev->configs)) { + struct usb_configuration *c; + + c = list_first_entry(&cdev->configs, + struct usb_configuration, list); + while (!list_empty(&c->functions)) { + struct usb_function *f; + + f = list_first_entry(&c->functions, + struct usb_function, list); + list_del(&f->list); + if (f->unbind) { + DBG(cdev, "unbind function '%s'/%p\n", + f->name, f); + f->unbind(c, f); + /* may free memory for "f" */ + } + } + list_del(&c->list); + if (c->unbind) { + DBG(cdev, "unbind config '%s'/%p\n", c->label, c); + c->unbind(c); + /* may free memory for "c" */ + } + } + if (composite->unbind) + composite->unbind(cdev); + spin_unlock_irqrestore(&cdev->lock, flags); + + if (cdev->req) { + kfree(cdev->req->buf); + usb_ep_free_request(gadget->ep0, cdev->req); + } + kfree(cdev); + set_gadget_data(gadget, NULL); + composite = NULL; +} + +static void __init +string_override_one(struct usb_gadget_strings *tab, u8 id, const char *s) +{ + struct usb_string *str = tab->strings; + + for (str = tab->strings; str->s; str++) { + if (str->id == id) { + str->s = s; + return; + } + } +} + +static void __init +string_override(struct usb_gadget_strings **tab, u8 id, const char *s) +{ + while (*tab) { + string_override_one(*tab, id, s); + tab++; + } +} + +static int __init composite_bind(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev; + int status = -ENOMEM; + + cdev = kzalloc(sizeof *cdev, GFP_KERNEL); + if (!cdev) + return status; + + spin_lock_init(&cdev->lock); + cdev->gadget = gadget; + set_gadget_data(gadget, cdev); + INIT_LIST_HEAD(&cdev->configs); + + /* preallocate control response and buffer */ + cdev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL); + if (!cdev->req) + goto fail; + cdev->req->buf = kmalloc(USB_BUFSIZ, GFP_KERNEL); + if (!cdev->req->buf) + goto fail; + cdev->req->complete = composite_setup_complete; + gadget->ep0->driver_data = cdev; + + cdev->bufsiz = USB_BUFSIZ; + cdev->driver = composite; + + usb_gadget_set_selfpowered(gadget); + + /* interface and string IDs start at zero via kzalloc. + * we force endpoints to start unassigned; few controller + * drivers will zero ep->driver_data. + */ + usb_ep_autoconfig_reset(cdev->gadget); + + /* composite gadget needs to assign strings for whole device (like + * serial number), register function drivers, potentially update + * power state and consumption, etc + */ + status = composite->bind(cdev); + if (status < 0) + goto fail; + + cdev->desc = *composite->dev; + cdev->desc.bMaxPacketSize0 = gadget->ep0->maxpacket; + + /* standardized runtime overrides for device ID data */ + if (idVendor) + cdev->desc.idVendor = cpu_to_le16(idVendor); + if (idProduct) + cdev->desc.idProduct = cpu_to_le16(idProduct); + if (bcdDevice) + cdev->desc.bcdDevice = cpu_to_le16(bcdDevice); + + /* strings can't be assigned before bind() allocates the + * releavnt identifiers + */ + if (cdev->desc.iManufacturer && iManufacturer) + string_override(composite->strings, + cdev->desc.iManufacturer, iManufacturer); + if (cdev->desc.iProduct && iProduct) + string_override(composite->strings, + cdev->desc.iProduct, iProduct); + if (cdev->desc.iSerialNumber && iSerialNumber) + string_override(composite->strings, + cdev->desc.iSerialNumber, iSerialNumber); + + INFO(cdev, "%s ready\n", composite->name); + return 0; + +fail: + composite_unbind(gadget); + return status; +} + +/*-------------------------------------------------------------------------*/ + +static void +composite_suspend(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + struct usb_function *f; + + /* REVISIT: should we have config and device level + * suspend/resume callbacks? + */ + DBG(cdev, "suspend\n"); + if (cdev->config) { + list_for_each_entry(f, &cdev->config->functions, list) { + if (f->suspend) + f->suspend(f); + } + } +} + +static void +composite_resume(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev = get_gadget_data(gadget); + struct usb_function *f; + + /* REVISIT: should we have config and device level + * suspend/resume callbacks? + */ + DBG(cdev, "resume\n"); + if (cdev->config) { + list_for_each_entry(f, &cdev->config->functions, list) { + if (f->resume) + f->resume(f); + } + } +} + +/*-------------------------------------------------------------------------*/ + +static struct usb_gadget_driver composite_driver = { + .speed = USB_SPEED_HIGH, + + .bind = composite_bind, + .unbind = __exit_p(composite_unbind), + + .setup = composite_setup, + .disconnect = composite_disconnect, + + .suspend = composite_suspend, + .resume = composite_resume, + + .driver = { + .owner = THIS_MODULE, + }, +}; + +/** + * usb_composite_register() - register a composite driver + * @driver: the driver to register + * Context: single threaded during gadget setup + * + * This function is used to register drivers using the composite driver + * framework. The return value is zero, or a negative errno value. + * Those values normally come from the driver's @bind method, which does + * all the work of setting up the driver to match the hardware. + * + * On successful return, the gadget is ready to respond to requests from + * the host, unless one of its components invokes usb_gadget_disconnect() + * while it was binding. That would usually be done in order to wait for + * some userspace participation. + */ +int __init usb_composite_register(struct usb_composite_driver *driver) +{ + if (!driver || !driver->dev || !driver->bind || composite) + return -EINVAL; + + if (!driver->name) + driver->name = "composite"; + composite_driver.function = (char *) driver->name; + composite_driver.driver.name = driver->name; + composite = driver; + + return usb_gadget_register_driver(&composite_driver); +} + +/** + * usb_composite_unregister() - unregister a composite driver + * @driver: the driver to unregister + * + * This function is used to unregister drivers using the composite + * driver framework. + */ +void __exit usb_composite_unregister(struct usb_composite_driver *driver) +{ + if (composite != driver) + return; + usb_gadget_unregister_driver(&composite_driver); +} diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c index a4e54b2743f0..92a28f5cd31f 100644 --- a/drivers/usb/gadget/config.c +++ b/drivers/usb/gadget/config.c @@ -96,7 +96,7 @@ int usb_gadget_config_buf( /* config descriptor first */ if (length < USB_DT_CONFIG_SIZE || !desc) return -EINVAL; - *cp = *config; + *cp = *config; /* then interface/endpoint/class/vendor/... */ len = usb_descriptor_fillbuf(USB_DT_CONFIG_SIZE + (u8*)buf, @@ -115,3 +115,76 @@ int usb_gadget_config_buf( return len; } +/** + * usb_copy_descriptors - copy a vector of USB descriptors + * @src: null-terminated vector to copy + * Context: initialization code, which may sleep + * + * This makes a copy of a vector of USB descriptors. Its primary use + * is to support usb_function objects which can have multiple copies, + * each needing different descriptors. Functions may have static + * tables of descriptors, which are used as templates and customized + * with identifiers (for interfaces, strings, endpoints, and more) + * as needed by a given function instance. + */ +struct usb_descriptor_header **__init +usb_copy_descriptors(struct usb_descriptor_header **src) +{ + struct usb_descriptor_header **tmp; + unsigned bytes; + unsigned n_desc; + void *mem; + struct usb_descriptor_header **ret; + + /* count descriptors and their sizes; then add vector size */ + for (bytes = 0, n_desc = 0, tmp = src; *tmp; tmp++, n_desc++) + bytes += (*tmp)->bLength; + bytes += (n_desc + 1) * sizeof(*tmp); + + mem = kmalloc(bytes, GFP_KERNEL); + if (!mem) + return NULL; + + /* fill in pointers starting at "tmp", + * to descriptors copied starting at "mem"; + * and return "ret" + */ + ret = tmp = mem; + mem += (n_desc + 1) * sizeof(*tmp); + while (*src) { + memcpy(mem, *src, (*src)->bLength); + *tmp = mem; + tmp++; + mem += (*src)->bLength; + src++; + } + *tmp = NULL; + + return ret; +} + +/** + * usb_find_endpoint - find a copy of an endpoint descriptor + * @src: original vector of descriptors + * @copy: copy of @src + * @ep: endpoint descriptor found in @src + * + * This returns the copy of the @match descriptor made for @copy. Its + * intended use is to help remembering the endpoint descriptor to use + * when enabling a given endpoint. + */ +struct usb_endpoint_descriptor *__init +usb_find_endpoint( + struct usb_descriptor_header **src, + struct usb_descriptor_header **copy, + struct usb_endpoint_descriptor *match +) +{ + while (*src) { + if (*src == (void *) match) + return (void *)*copy; + src++; + copy++; + } + return NULL; +} diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 42036192a03c..21d1406af9ee 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -862,7 +862,7 @@ static int dummy_udc_probe (struct platform_device *pdev) /* maybe claim OTG support, though we won't complete HNP */ dum->gadget.is_otg = (dummy_to_hcd(dum)->self.otg_port != 0); - strcpy (dum->gadget.dev.bus_id, "gadget"); + dev_set_name(&dum->gadget.dev, "gadget"); dum->gadget.dev.parent = &pdev->dev; dum->gadget.dev.release = dummy_gadget_release; rc = device_register (&dum->gadget.dev); @@ -1865,7 +1865,7 @@ static int dummy_hcd_probe(struct platform_device *pdev) dev_info(&pdev->dev, "%s, driver " DRIVER_VERSION "\n", driver_desc); - hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) return -ENOMEM; the_controller = hcd_to_dummy (hcd); diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 8bdad221fa91..9462e30192d8 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -159,6 +159,7 @@ ep_matches ( /* MATCH!! */ /* report address */ + desc->bEndpointAddress &= USB_DIR_IN; if (isdigit (ep->name [2])) { u8 num = simple_strtol (&ep->name [2], NULL, 10); desc->bEndpointAddress |= num; diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 8d61ea67a817..5cbb39267f13 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -1642,7 +1642,7 @@ static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p) strlcpy(p->driver, shortname, sizeof p->driver); strlcpy(p->version, DRIVER_VERSION, sizeof p->version); strlcpy(p->fw_version, dev->gadget->name, sizeof p->fw_version); - strlcpy (p->bus_info, dev->gadget->dev.bus_id, sizeof p->bus_info); + strlcpy (p->bus_info, dev_name(&dev->gadget->dev), sizeof p->bus_info); } static u32 eth_get_link(struct net_device *net) diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c new file mode 100644 index 000000000000..96fbf7f53011 --- /dev/null +++ b/drivers/usb/gadget/f_acm.c @@ -0,0 +1,587 @@ +/* + * f_acm.c -- USB CDC ACM function driver + * + * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com) + * Copyright (C) 2008 by David Brownell + * + * This software is distributed under the terms of the GNU General + * Public License ("GPL") as published by the Free Software Foundation, + * either version 2 of that License or (at your option) any later version. + */ + +/* #define VERBOSE_DEBUG */ + +#include <linux/kernel.h> +#include <linux/utsname.h> +#include <linux/device.h> + +#include "u_serial.h" +#include "gadget_chips.h" + + +/* + * This CDC ACM function support just wraps control functions and + * notifications around the generic serial-over-usb code. + * + * Because CDC ACM is standardized by the USB-IF, many host operating + * systems have drivers for it. Accordingly, ACM is the preferred + * interop solution for serial-port type connections. The control + * models are often not necessary, and in any case don't do much in + * this bare-bones implementation. + */ + +struct acm_ep_descs { + struct usb_endpoint_descriptor *in; + struct usb_endpoint_descriptor *out; + struct usb_endpoint_descriptor *notify; +}; + +struct f_acm { + struct gserial port; + u8 ctrl_id, data_id; + u8 port_num; + + struct usb_descriptor_header **fs_function; + struct acm_ep_descs fs; + struct usb_descriptor_header **hs_function; + struct acm_ep_descs hs; + + struct usb_ep *notify; + struct usb_endpoint_descriptor *notify_desc; + + struct usb_cdc_line_coding port_line_coding; /* 8-N-1 etc */ + u16 port_handshake_bits; +#define RS232_RTS (1 << 1) /* unused with full duplex */ +#define RS232_DTR (1 << 0) /* host is ready for data r/w */ +}; + +static inline struct f_acm *func_to_acm(struct usb_function *f) +{ + return container_of(f, struct f_acm, port.func); +} + +/*-------------------------------------------------------------------------*/ + +/* notification endpoint uses smallish and infrequent fixed-size messages */ + +#define GS_LOG2_NOTIFY_INTERVAL 5 /* 1 << 5 == 32 msec */ +#define GS_NOTIFY_MAXPACKET 8 + +/* interface and class descriptors: */ + +static struct usb_interface_descriptor acm_control_interface_desc __initdata = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + /* .bInterfaceNumber = DYNAMIC */ + .bNumEndpoints = 1, + .bInterfaceClass = USB_CLASS_COMM, + .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM, + .bInterfaceProtocol = USB_CDC_ACM_PROTO_AT_V25TER, + /* .iInterface = DYNAMIC */ +}; + +static struct usb_interface_descriptor acm_data_interface_desc __initdata = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + /* .bInterfaceNumber = DYNAMIC */ + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_CDC_DATA, + .bInterfaceSubClass = 0, + .bInterfaceProtocol = 0, + /* .iInterface = DYNAMIC */ +}; + +static struct usb_cdc_header_desc acm_header_desc __initdata = { + .bLength = sizeof(acm_header_desc), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_HEADER_TYPE, + .bcdCDC = __constant_cpu_to_le16(0x0110), +}; + +static struct usb_cdc_call_mgmt_descriptor +acm_call_mgmt_descriptor __initdata = { + .bLength = sizeof(acm_call_mgmt_descriptor), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_CALL_MANAGEMENT_TYPE, + .bmCapabilities = 0, + /* .bDataInterface = DYNAMIC */ +}; + +static struct usb_cdc_acm_descriptor acm_descriptor __initdata = { + .bLength = sizeof(acm_descriptor), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_ACM_TYPE, + .bmCapabilities = (1 << 1), +}; + +static struct usb_cdc_union_desc acm_union_desc __initdata = { + .bLength = sizeof(acm_union_desc), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubType = USB_CDC_UNION_TYPE, + /* .bMasterInterface0 = DYNAMIC */ + /* .bSlaveInterface0 = DYNAMIC */ +}; + +/* full speed support: */ + +static struct usb_endpoint_descriptor acm_fs_notify_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_INT, + .wMaxPacketSize = __constant_cpu_to_le16(GS_NOTIFY_MAXPACKET), + .bInterval = 1 << GS_LOG2_NOTIFY_INTERVAL, +}; + +static struct usb_endpoint_descriptor acm_fs_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_endpoint_descriptor acm_fs_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_descriptor_header *acm_fs_function[] __initdata = { + (struct usb_descriptor_header *) &acm_control_interface_desc, + (struct usb_descriptor_header *) &acm_header_desc, + (struct usb_descriptor_header *) &acm_call_mgmt_descriptor, + (struct usb_descriptor_header *) &acm_descriptor, + (struct usb_descriptor_header *) &acm_union_desc, + (struct usb_descriptor_header *) &acm_fs_notify_desc, + (struct usb_descriptor_header *) &acm_data_interface_desc, + (struct usb_descriptor_header *) &acm_fs_in_desc, + (struct usb_descriptor_header *) &acm_fs_out_desc, + NULL, +}; + +/* high speed support: */ + +static struct usb_endpoint_descriptor acm_hs_notify_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_INT, + .wMaxPacketSize = __constant_cpu_to_le16(GS_NOTIFY_MAXPACKET), + .bInterval = GS_LOG2_NOTIFY_INTERVAL+4, +}; + +static struct usb_endpoint_descriptor acm_hs_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_endpoint_descriptor acm_hs_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_descriptor_header *acm_hs_function[] __initdata = { + (struct usb_descriptor_header *) &acm_control_interface_desc, + (struct usb_descriptor_header *) &acm_header_desc, + (struct usb_descriptor_header *) &acm_call_mgmt_descriptor, + (struct usb_descriptor_header *) &acm_descriptor, + (struct usb_descriptor_header *) &acm_union_desc, + (struct usb_descriptor_header *) &acm_hs_notify_desc, + (struct usb_descriptor_header *) &acm_data_interface_desc, + (struct usb_descriptor_header *) &acm_hs_in_desc, + (struct usb_descriptor_header *) &acm_hs_out_desc, + NULL, +}; + +/* string descriptors: */ + +#define ACM_CTRL_IDX 0 +#define ACM_DATA_IDX 1 + +/* static strings, in UTF-8 */ +static struct usb_string acm_string_defs[] = { + [ACM_CTRL_IDX].s = "CDC ACM Control", + [ACM_DATA_IDX].s = "CDC ACM Data", + { /* ZEROES END LIST */ }, +}; + +static struct usb_gadget_strings acm_string_table = { + .language = 0x0409, /* en-us */ + .strings = acm_string_defs, +}; + +static struct usb_gadget_strings *acm_strings[] = { + &acm_string_table, + NULL, +}; + +/*-------------------------------------------------------------------------*/ + +/* ACM control ... data handling is delegated to tty library code. + * The main task of this function is to activate and deactivate + * that code based on device state; track parameters like line + * speed, handshake state, and so on; and issue notifications. + */ + +static void acm_complete_set_line_coding(struct usb_ep *ep, + struct usb_request *req) +{ + struct f_acm *acm = ep->driver_data; + struct usb_composite_dev *cdev = acm->port.func.config->cdev; + + if (req->status != 0) { + DBG(cdev, "acm ttyGS%d completion, err %d\n", + acm->port_num, req->status); + return; + } + + /* normal completion */ + if (req->actual != sizeof(acm->port_line_coding)) { + DBG(cdev, "acm ttyGS%d short resp, len %d\n", + acm->port_num, req->actual); + usb_ep_set_halt(ep); + } else { + struct usb_cdc_line_coding *value = req->buf; + + /* REVISIT: we currently just remember this data. + * If we change that, (a) validate it first, then + * (b) update whatever hardware needs updating, + * (c) worry about locking. This is information on + * the order of 9600-8-N-1 ... most of which means + * nothing unless we control a real RS232 line. + */ + acm->port_line_coding = *value; + } +} + +static int acm_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) +{ + struct f_acm *acm = func_to_acm(f); + struct usb_composite_dev *cdev = f->config->cdev; + struct usb_request *req = cdev->req; + int value = -EOPNOTSUPP; + u16 w_index = le16_to_cpu(ctrl->wIndex); + u16 w_value = le16_to_cpu(ctrl->wValue); + u16 w_length = le16_to_cpu(ctrl->wLength); + + /* composite driver infrastructure handles everything except + * CDC class messages; interface activation uses set_alt(). + */ + switch ((ctrl->bRequestType << 8) | ctrl->bRequest) { + + /* SET_LINE_CODING ... just read and save what the host sends */ + case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8) + | USB_CDC_REQ_SET_LINE_CODING: + if (w_length != sizeof(struct usb_cdc_line_coding) + || w_index != acm->ctrl_id) + goto invalid; + + value = w_length; + cdev->gadget->ep0->driver_data = acm; + req->complete = acm_complete_set_line_coding; + break; + + /* GET_LINE_CODING ... return what host sent, or initial value */ + case ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8) + | USB_CDC_REQ_GET_LINE_CODING: + if (w_index != acm->ctrl_id) + goto invalid; + + value = min_t(unsigned, w_length, + sizeof(struct usb_cdc_line_coding)); + memcpy(req->buf, &acm->port_line_coding, value); + break; + + /* SET_CONTROL_LINE_STATE ... save what the host sent */ + case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8) + | USB_CDC_REQ_SET_CONTROL_LINE_STATE: + if (w_index != acm->ctrl_id) + goto invalid; + + value = 0; + + /* FIXME we should not allow data to flow until the + * host sets the RS232_DTR bit; and when it clears + * that bit, we should return to that no-flow state. + */ + acm->port_handshake_bits = w_value; + break; + + default: +invalid: + VDBG(cdev, "invalid control req%02x.%02x v%04x i%04x l%d\n", + ctrl->bRequestType, ctrl->bRequest, + w_value, w_index, w_length); + } + + /* respond with data transfer or status phase? */ + if (value >= 0) { + DBG(cdev, "acm ttyGS%d req%02x.%02x v%04x i%04x l%d\n", + acm->port_num, ctrl->bRequestType, ctrl->bRequest, + w_value, w_index, w_length); + req->zero = 0; + req->length = value; + value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC); + if (value < 0) + ERROR(cdev, "acm response on ttyGS%d, err %d\n", + acm->port_num, value); + } + + /* device either stalls (value < 0) or reports success */ + return value; +} + +static int acm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) +{ + struct f_acm *acm = func_to_acm(f); + struct usb_composite_dev *cdev = f->config->cdev; + + /* we know alt == 0, so this is an activation or a reset */ + + /* REVISIT hardware on PXA handles SET_INTERFACE; + * this is probably doing resets wrong ... + */ + + if (intf == acm->ctrl_id) { + /* REVISIT this may need more work when we start to + * send notifications ... + */ + if (acm->notify->driver_data) { + VDBG(cdev, "reset acm control interface %d\n", intf); + usb_ep_disable(acm->notify); + } else { + VDBG(cdev, "init acm ctrl interface %d\n", intf); + acm->notify_desc = ep_choose(cdev->gadget, + acm->hs.notify, + acm->fs.notify); + } + usb_ep_enable(acm->notify, acm->notify_desc); + acm->notify->driver_data = acm; + + } else if (intf == acm->data_id) { + if (acm->port.in->driver_data) { + DBG(cdev, "reset acm ttyGS%d\n", acm->port_num); + gserial_disconnect(&acm->port); + } else { + DBG(cdev, "activate acm ttyGS%d\n", acm->port_num); + acm->port.in_desc = ep_choose(cdev->gadget, + acm->hs.in, acm->fs.in); + acm->port.out_desc = ep_choose(cdev->gadget, + acm->hs.out, acm->fs.out); + } + gserial_connect(&acm->port, acm->port_num); + + } else + return -EINVAL; + + return 0; +} + +static void acm_disable(struct usb_function *f) +{ + struct f_acm *acm = func_to_acm(f); + struct usb_composite_dev *cdev = f->config->cdev; + + DBG(cdev, "acm ttyGS%d deactivated\n", acm->port_num); + gserial_disconnect(&acm->port); + usb_ep_disable(acm->notify); + acm->notify->driver_data = NULL; +} + +/*-------------------------------------------------------------------------*/ + +/* ACM function driver setup/binding */ +static int __init +acm_bind(struct usb_configuration *c, struct usb_function *f) +{ + struct usb_composite_dev *cdev = c->cdev; + struct f_acm *acm = func_to_acm(f); + int status; + struct usb_ep *ep; + + /* allocate instance-specific interface IDs, and patch descriptors */ + status = usb_interface_id(c, f); + if (status < 0) + goto fail; + acm->ctrl_id = status; + + acm_control_interface_desc.bInterfaceNumber = status; + acm_union_desc .bMasterInterface0 = status; + + status = usb_interface_id(c, f); + if (status < 0) + goto fail; + acm->data_id = status; + + acm_data_interface_desc.bInterfaceNumber = status; + acm_union_desc.bSlaveInterface0 = status; + acm_call_mgmt_descriptor.bDataInterface = status; + + status = -ENODEV; + + /* allocate instance-specific endpoints */ + ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_in_desc); + if (!ep) + goto fail; + acm->port.in = ep; + ep->driver_data = cdev; /* claim */ + + ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_out_desc); + if (!ep) + goto fail; + acm->port.out = ep; + ep->driver_data = cdev; /* claim */ + + ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_notify_desc); + if (!ep) + goto fail; + acm->notify = ep; + ep->driver_data = cdev; /* claim */ + + /* copy descriptors, and track endpoint copies */ + f->descriptors = usb_copy_descriptors(acm_fs_function); + + acm->fs.in = usb_find_endpoint(acm_fs_function, + f->descriptors, &acm_fs_in_desc); + acm->fs.out = usb_find_endpoint(acm_fs_function, + f->descriptors, &acm_fs_out_desc); + acm->fs.notify = usb_find_endpoint(acm_fs_function, + f->descriptors, &acm_fs_notify_desc); + + /* support all relevant hardware speeds... we expect that when + * hardware is dual speed, all bulk-capable endpoints work at + * both speeds + */ + if (gadget_is_dualspeed(c->cdev->gadget)) { + acm_hs_in_desc.bEndpointAddress = + acm_fs_in_desc.bEndpointAddress; + acm_hs_out_desc.bEndpointAddress = + acm_fs_out_desc.bEndpointAddress; + acm_hs_notify_desc.bEndpointAddress = + acm_fs_notify_desc.bEndpointAddress; + + /* copy descriptors, and track endpoint copies */ + f->hs_descriptors = usb_copy_descriptors(acm_hs_function); + + acm->hs.in = usb_find_endpoint(acm_hs_function, + f->hs_descriptors, &acm_hs_in_desc); + acm->hs.out = usb_find_endpoint(acm_hs_function, + f->hs_descriptors, &acm_hs_out_desc); + acm->hs.notify = usb_find_endpoint(acm_hs_function, + f->hs_descriptors, &acm_hs_notify_desc); + } + + /* FIXME provide a callback for triggering notifications */ + + DBG(cdev, "acm ttyGS%d: %s speed IN/%s OUT/%s NOTIFY/%s\n", + acm->port_num, + gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", + acm->port.in->name, acm->port.out->name, + acm->notify->name); + return 0; + +fail: + /* we might as well release our claims on endpoints */ + if (acm->notify) + acm->notify->driver_data = NULL; + if (acm->port.out) + acm->port.out->driver_data = NULL; + if (acm->port.in) + acm->port.in->driver_data = NULL; + + ERROR(cdev, "%s/%p: can't bind, err %d\n", f->name, f, status); + + return status; +} + +static void +acm_unbind(struct usb_configuration *c, struct usb_function *f) +{ + if (gadget_is_dualspeed(c->cdev->gadget)) + usb_free_descriptors(f->hs_descriptors); + usb_free_descriptors(f->descriptors); + kfree(func_to_acm(f)); +} + +/* Some controllers can't support CDC ACM ... */ +static inline bool can_support_cdc(struct usb_configuration *c) +{ + /* SH3 doesn't support multiple interfaces */ + if (gadget_is_sh(c->cdev->gadget)) + return false; + + /* sa1100 doesn't have a third interrupt endpoint */ + if (gadget_is_sa1100(c->cdev->gadget)) + return false; + + /* everything else is *probably* fine ... */ + return true; +} + +/** + * acm_bind_config - add a CDC ACM function to a configuration + * @c: the configuration to support the CDC ACM instance + * @port_num: /dev/ttyGS* port this interface will use + * Context: single threaded during gadget setup + * + * Returns zero on success, else negative errno. + * + * Caller must have called @gserial_setup() with enough ports to + * handle all the ones it binds. Caller is also responsible + * for calling @gserial_cleanup() before module unload. + */ +int __init acm_bind_config(struct usb_configuration *c, u8 port_num) +{ + struct f_acm *acm; + int status; + + if (!can_support_cdc(c)) + return -EINVAL; + + /* REVISIT might want instance-specific strings to help + * distinguish instances ... + */ + + /* maybe allocate device-global string IDs, and patch descriptors */ + if (acm_string_defs[ACM_CTRL_IDX].id == 0) { + status = usb_string_id(c->cdev); + if (status < 0) + return status; + acm_string_defs[ACM_CTRL_IDX].id = status; + + acm_control_interface_desc.iInterface = status; + + status = usb_string_id(c->cdev); + if (status < 0) + return status; + acm_string_defs[ACM_DATA_IDX].id = status; + + acm_data_interface_desc.iInterface = status; + } + + /* allocate and initialize one new instance */ + acm = kzalloc(sizeof *acm, GFP_KERNEL); + if (!acm) + return -ENOMEM; + + acm->port_num = port_num; + + acm->port.func.name = "acm"; + acm->port.func.strings = acm_strings; + /* descriptors are per-instance copies */ + acm->port.func.bind = acm_bind; + acm->port.func.unbind = acm_unbind; + acm->port.func.set_alt = acm_set_alt; + acm->port.func.setup = acm_setup; + acm->port.func.disable = acm_disable; + + status = usb_add_function(c, &acm->port.func); + if (status) + kfree(acm); + return status; +} diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c new file mode 100644 index 000000000000..53b618d30351 --- /dev/null +++ b/drivers/usb/gadget/f_loopback.c @@ -0,0 +1,383 @@ +/* + * f_loopback.c - USB peripheral loopback configuration driver + * + * Copyright (C) 2003-2008 David Brownell + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* #define VERBOSE_DEBUG */ + +#include <linux/kernel.h> +#include <linux/utsname.h> +#include <linux/device.h> + +#include "g_zero.h" +#include "gadget_chips.h" + + +/* + * LOOPBACK FUNCTION ... a testing vehicle for USB peripherals, + * + * This takes messages of various sizes written OUT to a device, and loops + * them back so they can be read IN from it. It has been used by certain + * test applications. It supports limited testing of data queueing logic. + * + * + * This is currently packaged as a configuration driver, which can't be + * combined with other functions to make composite devices. However, it + * can be combined with other independent configurations. + */ +struct f_loopback { + struct usb_function function; + + struct usb_ep *in_ep; + struct usb_ep *out_ep; +}; + +static inline struct f_loopback *func_to_loop(struct usb_function *f) +{ + return container_of(f, struct f_loopback, function); +} + +static unsigned qlen = 32; +module_param(qlen, uint, 0); +MODULE_PARM_DESC(qlenn, "depth of loopback queue"); + +/*-------------------------------------------------------------------------*/ + +static struct usb_interface_descriptor loopback_intf = { + .bLength = sizeof loopback_intf, + .bDescriptorType = USB_DT_INTERFACE, + + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + /* .iInterface = DYNAMIC */ +}; + +/* full speed support: */ + +static struct usb_endpoint_descriptor fs_source_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_endpoint_descriptor fs_sink_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_descriptor_header *fs_loopback_descs[] = { + (struct usb_descriptor_header *) &loopback_intf, + (struct usb_descriptor_header *) &fs_sink_desc, + (struct usb_descriptor_header *) &fs_source_desc, + NULL, +}; + +/* high speed support: */ + +static struct usb_endpoint_descriptor hs_source_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_endpoint_descriptor hs_sink_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_descriptor_header *hs_loopback_descs[] = { + (struct usb_descriptor_header *) &loopback_intf, + (struct usb_descriptor_header *) &hs_source_desc, + (struct usb_descriptor_header *) &hs_sink_desc, + NULL, +}; + +/* function-specific strings: */ + +static struct usb_string strings_loopback[] = { + [0].s = "loop input to output", + { } /* end of list */ +}; + +static struct usb_gadget_strings stringtab_loop = { + .language = 0x0409, /* en-us */ + .strings = strings_loopback, +}; + +static struct usb_gadget_strings *loopback_strings[] = { + &stringtab_loop, + NULL, +}; + +/*-------------------------------------------------------------------------*/ + +static int __init +loopback_bind(struct usb_configuration *c, struct usb_function *f) +{ + struct usb_composite_dev *cdev = c->cdev; + struct f_loopback *loop = func_to_loop(f); + int id; + + /* allocate interface ID(s) */ + id = usb_interface_id(c, f); + if (id < 0) + return id; + loopback_intf.bInterfaceNumber = id; + + /* allocate endpoints */ + + loop->in_ep = usb_ep_autoconfig(cdev->gadget, &fs_source_desc); + if (!loop->in_ep) { +autoconf_fail: + ERROR(cdev, "%s: can't autoconfigure on %s\n", + f->name, cdev->gadget->name); + return -ENODEV; + } + loop->in_ep->driver_data = cdev; /* claim */ + + loop->out_ep = usb_ep_autoconfig(cdev->gadget, &fs_sink_desc); + if (!loop->out_ep) + goto autoconf_fail; + loop->out_ep->driver_data = cdev; /* claim */ + + /* support high speed hardware */ + if (gadget_is_dualspeed(c->cdev->gadget)) { + hs_source_desc.bEndpointAddress = + fs_source_desc.bEndpointAddress; + hs_sink_desc.bEndpointAddress = + fs_sink_desc.bEndpointAddress; + f->hs_descriptors = hs_loopback_descs; + } + + DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n", + gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", + f->name, loop->in_ep->name, loop->out_ep->name); + return 0; +} + +static void +loopback_unbind(struct usb_configuration *c, struct usb_function *f) +{ + kfree(func_to_loop(f)); +} + +static void loopback_complete(struct usb_ep *ep, struct usb_request *req) +{ + struct f_loopback *loop = ep->driver_data; + struct usb_composite_dev *cdev = loop->function.config->cdev; + int status = req->status; + + switch (status) { + + case 0: /* normal completion? */ + if (ep == loop->out_ep) { + /* loop this OUT packet back IN to the host */ + req->zero = (req->actual < req->length); + req->length = req->actual; + status = usb_ep_queue(loop->in_ep, req, GFP_ATOMIC); + if (status == 0) + return; + + /* "should never get here" */ + ERROR(cdev, "can't loop %s to %s: %d\n", + ep->name, loop->in_ep->name, + status); + } + + /* queue the buffer for some later OUT packet */ + req->length = buflen; + status = usb_ep_queue(loop->out_ep, req, GFP_ATOMIC); + if (status == 0) + return; + + /* "should never get here" */ + /* FALLTHROUGH */ + + default: + ERROR(cdev, "%s loop complete --> %d, %d/%d\n", ep->name, + status, req->actual, req->length); + /* FALLTHROUGH */ + + /* NOTE: since this driver doesn't maintain an explicit record + * of requests it submitted (just maintains qlen count), we + * rely on the hardware driver to clean up on disconnect or + * endpoint disable. + */ + case -ECONNABORTED: /* hardware forced ep reset */ + case -ECONNRESET: /* request dequeued */ + case -ESHUTDOWN: /* disconnect from host */ + free_ep_req(ep, req); + return; + } +} + +static void disable_loopback(struct f_loopback *loop) +{ + struct usb_composite_dev *cdev; + + cdev = loop->function.config->cdev; + disable_endpoints(cdev, loop->in_ep, loop->out_ep); + VDBG(cdev, "%s disabled\n", loop->function.name); +} + +static int +enable_loopback(struct usb_composite_dev *cdev, struct f_loopback *loop) +{ + int result = 0; + const struct usb_endpoint_descriptor *src, *sink; + struct usb_ep *ep; + struct usb_request *req; + unsigned i; + + src = ep_choose(cdev->gadget, &hs_source_desc, &fs_source_desc); + sink = ep_choose(cdev->gadget, &hs_sink_desc, &fs_sink_desc); + + /* one endpoint writes data back IN to the host */ + ep = loop->in_ep; + result = usb_ep_enable(ep, src); + if (result < 0) + return result; + ep->driver_data = loop; + + /* one endpoint just reads OUT packets */ + ep = loop->out_ep; + result = usb_ep_enable(ep, sink); + if (result < 0) { +fail0: + ep = loop->in_ep; + usb_ep_disable(ep); + ep->driver_data = NULL; + return result; + } + ep->driver_data = loop; + + /* allocate a bunch of read buffers and queue them all at once. + * we buffer at most 'qlen' transfers; fewer if any need more + * than 'buflen' bytes each. + */ + for (i = 0; i < qlen && result == 0; i++) { + req = alloc_ep_req(ep); + if (req) { + req->complete = loopback_complete; + result = usb_ep_queue(ep, req, GFP_ATOMIC); + if (result) + ERROR(cdev, "%s queue req --> %d\n", + ep->name, result); + } else { + usb_ep_disable(ep); + ep->driver_data = NULL; + result = -ENOMEM; + goto fail0; + } + } + + DBG(cdev, "%s enabled\n", loop->function.name); + return result; +} + +static int loopback_set_alt(struct usb_function *f, + unsigned intf, unsigned alt) +{ + struct f_loopback *loop = func_to_loop(f); + struct usb_composite_dev *cdev = f->config->cdev; + + /* we know alt is zero */ + if (loop->in_ep->driver_data) + disable_loopback(loop); + return enable_loopback(cdev, loop); +} + +static void loopback_disable(struct usb_function *f) +{ + struct f_loopback *loop = func_to_loop(f); + + disable_loopback(loop); +} + +/*-------------------------------------------------------------------------*/ + +static int __init loopback_bind_config(struct usb_configuration *c) +{ + struct f_loopback *loop; + int status; + + loop = kzalloc(sizeof *loop, GFP_KERNEL); + if (!loop) + return -ENOMEM; + + loop->function.name = "loopback"; + loop->function.descriptors = fs_loopback_descs; + loop->function.bind = loopback_bind; + loop->function.unbind = loopback_unbind; + loop->function.set_alt = loopback_set_alt; + loop->function.disable = loopback_disable; + + status = usb_add_function(c, &loop->function); + if (status) + kfree(loop); + return status; +} + +static struct usb_configuration loopback_driver = { + .label = "loopback", + .strings = loopback_strings, + .bind = loopback_bind_config, + .bConfigurationValue = 2, + .bmAttributes = USB_CONFIG_ATT_SELFPOWER, + .bMaxPower = 1, /* 2 mA, minimal */ + /* .iConfiguration = DYNAMIC */ +}; + +/** + * loopback_add - add a loopback testing configuration to a device + * @cdev: the device to support the loopback configuration + */ +int __init loopback_add(struct usb_composite_dev *cdev) +{ + int id; + + /* allocate string ID(s) */ + id = usb_string_id(cdev); + if (id < 0) + return id; + strings_loopback[0].id = id; + + loopback_intf.iInterface = id; + loopback_driver.iConfiguration = id; + + /* FIXME pass in bConfigurationValue and OTG stuff */ + + /* support OTG systems */ + if (gadget_is_otg(cdev->gadget)) { + loopback_driver.descriptors = otg_desc; + loopback_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; + } + + return usb_add_config(cdev, &loopback_driver); +} diff --git a/drivers/usb/gadget/f_serial.c b/drivers/usb/gadget/f_serial.c new file mode 100644 index 000000000000..8360bd33a368 --- /dev/null +++ b/drivers/usb/gadget/f_serial.c @@ -0,0 +1,298 @@ +/* + * f_serial.c - generic USB serial function + * + * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com) + * Copyright (C) 2008 by David Brownell + * + * This software is distributed under the terms of the GNU General + * Public License ("GPL") as published by the Free Software Foundation, + * either version 2 of that License or (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/device.h> + +#include "u_serial.h" +#include "gadget_chips.h" + + +/* + * This function packages a simple "generic serial" port with no real + * control mechanisms, just raw data transfer over two bulk endpoints. + * + * Because it's not standardized, this isn't as interoperable as the + * CDC ACM driver. However, for many purposes it's just as functional + * if you can arrange appropriate host side drivers. + */ + +struct gser_descs { + struct usb_endpoint_descriptor *in; + struct usb_endpoint_descriptor *out; +}; + +struct f_gser { + struct gserial port; + u8 data_id; + u8 port_num; + + struct usb_descriptor_header **fs_function; + struct gser_descs fs; + struct usb_descriptor_header **hs_function; + struct gser_descs hs; +}; + +static inline struct f_gser *func_to_gser(struct usb_function *f) +{ + return container_of(f, struct f_gser, port.func); +} + +/*-------------------------------------------------------------------------*/ + +/* interface descriptor: */ + +static struct usb_interface_descriptor gser_interface_desc __initdata = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + /* .bInterfaceNumber = DYNAMIC */ + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .bInterfaceSubClass = 0, + .bInterfaceProtocol = 0, + /* .iInterface = DYNAMIC */ +}; + +/* full speed support: */ + +static struct usb_endpoint_descriptor gser_fs_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_endpoint_descriptor gser_fs_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_descriptor_header *gser_fs_function[] __initdata = { + (struct usb_descriptor_header *) &gser_interface_desc, + (struct usb_descriptor_header *) &gser_fs_in_desc, + (struct usb_descriptor_header *) &gser_fs_out_desc, + NULL, +}; + +/* high speed support: */ + +static struct usb_endpoint_descriptor gser_hs_in_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_endpoint_descriptor gser_hs_out_desc __initdata = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_descriptor_header *gser_hs_function[] __initdata = { + (struct usb_descriptor_header *) &gser_interface_desc, + (struct usb_descriptor_header *) &gser_hs_in_desc, + (struct usb_descriptor_header *) &gser_hs_out_desc, + NULL, +}; + +/* string descriptors: */ + +static struct usb_string gser_string_defs[] = { + [0].s = "Generic Serial", + { } /* end of list */ +}; + +static struct usb_gadget_strings gser_string_table = { + .language = 0x0409, /* en-us */ + .strings = gser_string_defs, +}; + +static struct usb_gadget_strings *gser_strings[] = { + &gser_string_table, + NULL, +}; + +/*-------------------------------------------------------------------------*/ + +static int gser_set_alt(struct usb_function *f, unsigned intf, unsigned alt) +{ + struct f_gser *gser = func_to_gser(f); + struct usb_composite_dev *cdev = f->config->cdev; + + /* we know alt == 0, so this is an activation or a reset */ + + /* REVISIT hardware on PXA handles SET_INTERFACE; + * this is probably doing resets wrong ... + */ + if (gser->port.in->driver_data) { + DBG(cdev, "reset generic ttyGS%d\n", gser->port_num); + gserial_disconnect(&gser->port); + } else { + DBG(cdev, "activate generic ttyGS%d\n", gser->port_num); + gser->port.in_desc = ep_choose(cdev->gadget, + gser->hs.in, gser->fs.in); + gser->port.out_desc = ep_choose(cdev->gadget, + gser->hs.out, gser->fs.out); + } + gserial_connect(&gser->port, gser->port_num); + return 0; +} + +static void gser_disable(struct usb_function *f) +{ + struct f_gser *gser = func_to_gser(f); + struct usb_composite_dev *cdev = f->config->cdev; + + DBG(cdev, "generic ttyGS%d deactivated\n", gser->port_num); + gserial_disconnect(&gser->port); +} + +/*-------------------------------------------------------------------------*/ + +/* serial function driver setup/binding */ + +static int __init +gser_bind(struct usb_configuration *c, struct usb_function *f) +{ + struct usb_composite_dev *cdev = c->cdev; + struct f_gser *gser = func_to_gser(f); + int status; + struct usb_ep *ep; + + /* allocate instance-specific interface IDs */ + status = usb_interface_id(c, f); + if (status < 0) + goto fail; + gser->data_id = status; + gser_interface_desc.bInterfaceNumber = status; + + status = -ENODEV; + + /* allocate instance-specific endpoints */ + ep = usb_ep_autoconfig(cdev->gadget, &gser_fs_in_desc); + if (!ep) + goto fail; + gser->port.in = ep; + ep->driver_data = cdev; /* claim */ + + ep = usb_ep_autoconfig(cdev->gadget, &gser_fs_out_desc); + if (!ep) + goto fail; + gser->port.out = ep; + ep->driver_data = cdev; /* claim */ + + /* copy descriptors, and track endpoint copies */ + f->descriptors = usb_copy_descriptors(gser_fs_function); + + gser->fs.in = usb_find_endpoint(gser_fs_function, + f->descriptors, &gser_fs_in_desc); + gser->fs.out = usb_find_endpoint(gser_fs_function, + f->descriptors, &gser_fs_out_desc); + + + /* support all relevant hardware speeds... we expect that when + * hardware is dual speed, all bulk-capable endpoints work at + * both speeds + */ + if (gadget_is_dualspeed(c->cdev->gadget)) { + gser_hs_in_desc.bEndpointAddress = + gser_fs_in_desc.bEndpointAddress; + gser_hs_out_desc.bEndpointAddress = + gser_fs_out_desc.bEndpointAddress; + + /* copy descriptors, and track endpoint copies */ + f->hs_descriptors = usb_copy_descriptors(gser_hs_function); + + gser->hs.in = usb_find_endpoint(gser_hs_function, + f->hs_descriptors, &gser_hs_in_desc); + gser->hs.out = usb_find_endpoint(gser_hs_function, + f->hs_descriptors, &gser_hs_out_desc); + } + + DBG(cdev, "generic ttyGS%d: %s speed IN/%s OUT/%s\n", + gser->port_num, + gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", + gser->port.in->name, gser->port.out->name); + return 0; + +fail: + /* we might as well release our claims on endpoints */ + if (gser->port.out) + gser->port.out->driver_data = NULL; + if (gser->port.in) + gser->port.in->driver_data = NULL; + + ERROR(cdev, "%s: can't bind, err %d\n", f->name, status); + + return status; +} + +static void +gser_unbind(struct usb_configuration *c, struct usb_function *f) +{ + if (gadget_is_dualspeed(c->cdev->gadget)) + usb_free_descriptors(f->hs_descriptors); + usb_free_descriptors(f->descriptors); + kfree(func_to_gser(f)); +} + +/** + * gser_bind_config - add a generic serial function to a configuration + * @c: the configuration to support the serial instance + * @port_num: /dev/ttyGS* port this interface will use + * Context: single threaded during gadget setup + * + * Returns zero on success, else negative errno. + * + * Caller must have called @gserial_setup() with enough ports to + * handle all the ones it binds. Caller is also responsible + * for calling @gserial_cleanup() before module unload. + */ +int __init gser_bind_config(struct usb_configuration *c, u8 port_num) +{ + struct f_gser *gser; + int status; + + /* REVISIT might want instance-specific strings to help + * distinguish instances ... + */ + + /* maybe allocate device-global string ID */ + if (gser_string_defs[0].id == 0) { + status = usb_string_id(c->cdev); + if (status < 0) + return status; + gser_string_defs[0].id = status; + } + + /* allocate and initialize one new instance */ + gser = kzalloc(sizeof *gser, GFP_KERNEL); + if (!gser) + return -ENOMEM; + + gser->port_num = port_num; + + gser->port.func.name = "gser"; + gser->port.func.strings = gser_strings; + gser->port.func.bind = gser_bind; + gser->port.func.unbind = gser_unbind; + gser->port.func.set_alt = gser_set_alt; + gser->port.func.disable = gser_disable; + + status = usb_add_function(c, &gser->port.func); + if (status) + kfree(gser); + return status; +} diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c new file mode 100644 index 000000000000..b3a1c3ee3ad5 --- /dev/null +++ b/drivers/usb/gadget/f_sourcesink.c @@ -0,0 +1,589 @@ +/* + * f_sourcesink.c - USB peripheral source/sink configuration driver + * + * Copyright (C) 2003-2008 David Brownell + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* #define VERBOSE_DEBUG */ + +#include <linux/kernel.h> +#include <linux/utsname.h> +#include <linux/device.h> + +#include "g_zero.h" +#include "gadget_chips.h" + + +/* + * SOURCE/SINK FUNCTION ... a primary testing vehicle for USB peripheral + * controller drivers. + * + * This just sinks bulk packets OUT to the peripheral and sources them IN + * to the host, optionally with specific data patterns for integrity tests. + * As such it supports basic functionality and load tests. + * + * In terms of control messaging, this supports all the standard requests + * plus two that support control-OUT tests. If the optional "autoresume" + * mode is enabled, it provides good functional coverage for the "USBCV" + * test harness from USB-IF. + * + * Note that because this doesn't queue more than one request at a time, + * some other function must be used to test queueing logic. The network + * link (g_ether) is the best overall option for that, since its TX and RX + * queues are relatively independent, will receive a range of packet sizes, + * and can often be made to run out completely. Those issues are important + * when stress testing peripheral controller drivers. + * + * + * This is currently packaged as a configuration driver, which can't be + * combined with other functions to make composite devices. However, it + * can be combined with other independent configurations. + */ +struct f_sourcesink { + struct usb_function function; + + struct usb_ep *in_ep; + struct usb_ep *out_ep; + struct timer_list resume; +}; + +static inline struct f_sourcesink *func_to_ss(struct usb_function *f) +{ + return container_of(f, struct f_sourcesink, function); +} + +static unsigned autoresume; +module_param(autoresume, uint, 0); +MODULE_PARM_DESC(autoresume, "zero, or seconds before remote wakeup"); + +static unsigned pattern; +module_param(pattern, uint, 0); +MODULE_PARM_DESC(pattern, "0 = all zeroes, 1 = mod63 "); + +/*-------------------------------------------------------------------------*/ + +static struct usb_interface_descriptor source_sink_intf = { + .bLength = sizeof source_sink_intf, + .bDescriptorType = USB_DT_INTERFACE, + + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + /* .iInterface = DYNAMIC */ +}; + +/* full speed support: */ + +static struct usb_endpoint_descriptor fs_source_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_endpoint_descriptor fs_sink_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +static struct usb_descriptor_header *fs_source_sink_descs[] = { + (struct usb_descriptor_header *) &source_sink_intf, + (struct usb_descriptor_header *) &fs_sink_desc, + (struct usb_descriptor_header *) &fs_source_desc, + NULL, +}; + +/* high speed support: */ + +static struct usb_endpoint_descriptor hs_source_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_endpoint_descriptor hs_sink_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = __constant_cpu_to_le16(512), +}; + +static struct usb_descriptor_header *hs_source_sink_descs[] = { + (struct usb_descriptor_header *) &source_sink_intf, + (struct usb_descriptor_header *) &hs_source_desc, + (struct usb_descriptor_header *) &hs_sink_desc, + NULL, +}; + +/* function-specific strings: */ + +static struct usb_string strings_sourcesink[] = { + [0].s = "source and sink data", + { } /* end of list */ +}; + +static struct usb_gadget_strings stringtab_sourcesink = { + .language = 0x0409, /* en-us */ + .strings = strings_sourcesink, +}; + +static struct usb_gadget_strings *sourcesink_strings[] = { + &stringtab_sourcesink, + NULL, +}; + +/*-------------------------------------------------------------------------*/ + +static void sourcesink_autoresume(unsigned long _c) +{ + struct usb_composite_dev *cdev = (void *)_c; + struct usb_gadget *g = cdev->gadget; + + /* Normally the host would be woken up for something + * more significant than just a timer firing; likely + * because of some direct user request. + */ + if (g->speed != USB_SPEED_UNKNOWN) { + int status = usb_gadget_wakeup(g); + DBG(cdev, "%s --> %d\n", __func__, status); + } +} + +static int __init +sourcesink_bind(struct usb_configuration *c, struct usb_function *f) +{ + struct usb_composite_dev *cdev = c->cdev; + struct f_sourcesink *ss = func_to_ss(f); + int id; + + /* allocate interface ID(s) */ + id = usb_interface_id(c, f); + if (id < 0) + return id; + source_sink_intf.bInterfaceNumber = id; + + /* allocate endpoints */ + ss->in_ep = usb_ep_autoconfig(cdev->gadget, &fs_source_desc); + if (!ss->in_ep) { +autoconf_fail: + ERROR(cdev, "%s: can't autoconfigure on %s\n", + f->name, cdev->gadget->name); + return -ENODEV; + } + ss->in_ep->driver_data = cdev; /* claim */ + + ss->out_ep = usb_ep_autoconfig(cdev->gadget, &fs_sink_desc); + if (!ss->out_ep) + goto autoconf_fail; + ss->out_ep->driver_data = cdev; /* claim */ + + setup_timer(&ss->resume, sourcesink_autoresume, + (unsigned long) c->cdev); + + /* support high speed hardware */ + if (gadget_is_dualspeed(c->cdev->gadget)) { + hs_source_desc.bEndpointAddress = + fs_source_desc.bEndpointAddress; + hs_sink_desc.bEndpointAddress = + fs_sink_desc.bEndpointAddress; + f->hs_descriptors = hs_source_sink_descs; + } + + DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n", + gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", + f->name, ss->in_ep->name, ss->out_ep->name); + return 0; +} + +static void +sourcesink_unbind(struct usb_configuration *c, struct usb_function *f) +{ + kfree(func_to_ss(f)); +} + +/* optionally require specific source/sink data patterns */ +static int check_read_data(struct f_sourcesink *ss, struct usb_request *req) +{ + unsigned i; + u8 *buf = req->buf; + struct usb_composite_dev *cdev = ss->function.config->cdev; + + for (i = 0; i < req->actual; i++, buf++) { + switch (pattern) { + + /* all-zeroes has no synchronization issues */ + case 0: + if (*buf == 0) + continue; + break; + + /* "mod63" stays in sync with short-terminated transfers, + * OR otherwise when host and gadget agree on how large + * each usb transfer request should be. Resync is done + * with set_interface or set_config. (We *WANT* it to + * get quickly out of sync if controllers or their drivers + * stutter for any reason, including buffer duplcation...) + */ + case 1: + if (*buf == (u8)(i % 63)) + continue; + break; + } + ERROR(cdev, "bad OUT byte, buf[%d] = %d\n", i, *buf); + usb_ep_set_halt(ss->out_ep); + return -EINVAL; + } + return 0; +} + +static void reinit_write_data(struct usb_ep *ep, struct usb_request *req) +{ + unsigned i; + u8 *buf = req->buf; + + switch (pattern) { + case 0: + memset(req->buf, 0, req->length); + break; + case 1: + for (i = 0; i < req->length; i++) + *buf++ = (u8) (i % 63); + break; + } +} + +static void source_sink_complete(struct usb_ep *ep, struct usb_request *req) +{ + struct f_sourcesink *ss = ep->driver_data; + struct usb_composite_dev *cdev = ss->function.config->cdev; + int status = req->status; + + switch (status) { + + case 0: /* normal completion? */ + if (ep == ss->out_ep) { + check_read_data(ss, req); + memset(req->buf, 0x55, req->length); + } else + reinit_write_data(ep, req); + break; + + /* this endpoint is normally active while we're configured */ + case -ECONNABORTED: /* hardware forced ep reset */ + case -ECONNRESET: /* request dequeued */ + case -ESHUTDOWN: /* disconnect from host */ + VDBG(cdev, "%s gone (%d), %d/%d\n", ep->name, status, + req->actual, req->length); + if (ep == ss->out_ep) + check_read_data(ss, req); + free_ep_req(ep, req); + return; + + case -EOVERFLOW: /* buffer overrun on read means that + * we didn't provide a big enough + * buffer. + */ + default: +#if 1 + DBG(cdev, "%s complete --> %d, %d/%d\n", ep->name, + status, req->actual, req->length); +#endif + case -EREMOTEIO: /* short read */ + break; + } + + status = usb_ep_queue(ep, req, GFP_ATOMIC); + if (status) { + ERROR(cdev, "kill %s: resubmit %d bytes --> %d\n", + ep->name, req->length, status); + usb_ep_set_halt(ep); + /* FIXME recover later ... somehow */ + } +} + +static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in) +{ + struct usb_ep *ep; + struct usb_request *req; + int status; + + ep = is_in ? ss->in_ep : ss->out_ep; + req = alloc_ep_req(ep); + if (!req) + return -ENOMEM; + + req->complete = source_sink_complete; + if (is_in) + reinit_write_data(ep, req); + else + memset(req->buf, 0x55, req->length); + + status = usb_ep_queue(ep, req, GFP_ATOMIC); + if (status) { + struct usb_composite_dev *cdev; + + cdev = ss->function.config->cdev; + ERROR(cdev, "start %s %s --> %d\n", + is_in ? "IN" : "OUT", + ep->name, status); + free_ep_req(ep, req); + } + + return status; +} + +static void disable_source_sink(struct f_sourcesink *ss) +{ + struct usb_composite_dev *cdev; + + cdev = ss->function.config->cdev; + disable_endpoints(cdev, ss->in_ep, ss->out_ep); + del_timer(&ss->resume); + VDBG(cdev, "%s disabled\n", ss->function.name); +} + +static int +enable_source_sink(struct usb_composite_dev *cdev, struct f_sourcesink *ss) +{ + int result = 0; + const struct usb_endpoint_descriptor *src, *sink; + struct usb_ep *ep; + + src = ep_choose(cdev->gadget, &hs_source_desc, &fs_source_desc); + sink = ep_choose(cdev->gadget, &hs_sink_desc, &fs_sink_desc); + + /* one endpoint writes (sources) zeroes IN (to the host) */ + ep = ss->in_ep; + result = usb_ep_enable(ep, src); + if (result < 0) + return result; + ep->driver_data = ss; + + result = source_sink_start_ep(ss, true); + if (result < 0) { +fail: + ep = ss->in_ep; + usb_ep_disable(ep); + ep->driver_data = NULL; + return result; + } + + /* one endpoint reads (sinks) anything OUT (from the host) */ + ep = ss->out_ep; + result = usb_ep_enable(ep, sink); + if (result < 0) + goto fail; + ep->driver_data = ss; + + result = source_sink_start_ep(ss, false); + if (result < 0) { + usb_ep_disable(ep); + ep->driver_data = NULL; + goto fail; + } + + DBG(cdev, "%s enabled\n", ss->function.name); + return result; +} + +static int sourcesink_set_alt(struct usb_function *f, + unsigned intf, unsigned alt) +{ + struct f_sourcesink *ss = func_to_ss(f); + struct usb_composite_dev *cdev = f->config->cdev; + + /* we know alt is zero */ + if (ss->in_ep->driver_data) + disable_source_sink(ss); + return enable_source_sink(cdev, ss); +} + +static void sourcesink_disable(struct usb_function *f) +{ + struct f_sourcesink *ss = func_to_ss(f); + + disable_source_sink(ss); +} + +static void sourcesink_suspend(struct usb_function *f) +{ + struct f_sourcesink *ss = func_to_ss(f); + struct usb_composite_dev *cdev = f->config->cdev; + + if (cdev->gadget->speed == USB_SPEED_UNKNOWN) + return; + + if (autoresume) { + mod_timer(&ss->resume, jiffies + (HZ * autoresume)); + DBG(cdev, "suspend, wakeup in %d seconds\n", autoresume); + } else + DBG(cdev, "%s\n", __func__); +} + +static void sourcesink_resume(struct usb_function *f) +{ + struct f_sourcesink *ss = func_to_ss(f); + struct usb_composite_dev *cdev = f->config->cdev; + + DBG(cdev, "%s\n", __func__); + del_timer(&ss->resume); +} + +/*-------------------------------------------------------------------------*/ + +static int __init sourcesink_bind_config(struct usb_configuration *c) +{ + struct f_sourcesink *ss; + int status; + + ss = kzalloc(sizeof *ss, GFP_KERNEL); + if (!ss) + return -ENOMEM; + + ss->function.name = "source/sink"; + ss->function.descriptors = fs_source_sink_descs; + ss->function.bind = sourcesink_bind; + ss->function.unbind = sourcesink_unbind; + ss->function.set_alt = sourcesink_set_alt; + ss->function.disable = sourcesink_disable; + ss->function.suspend = sourcesink_suspend; + ss->function.resume = sourcesink_resume; + + status = usb_add_function(c, &ss->function); + if (status) + kfree(ss); + return status; +} + +static int sourcesink_setup(struct usb_configuration *c, + const struct usb_ctrlrequest *ctrl) +{ + struct usb_request *req = c->cdev->req; + int value = -EOPNOTSUPP; + u16 w_index = le16_to_cpu(ctrl->wIndex); + u16 w_value = le16_to_cpu(ctrl->wValue); + u16 w_length = le16_to_cpu(ctrl->wLength); + + /* composite driver infrastructure handles everything except + * the two control test requests. + */ + switch (ctrl->bRequest) { + + /* + * These are the same vendor-specific requests supported by + * Intel's USB 2.0 compliance test devices. We exceed that + * device spec by allowing multiple-packet requests. + * + * NOTE: the Control-OUT data stays in req->buf ... better + * would be copying it into a scratch buffer, so that other + * requests may safely intervene. + */ + case 0x5b: /* control WRITE test -- fill the buffer */ + if (ctrl->bRequestType != (USB_DIR_OUT|USB_TYPE_VENDOR)) + goto unknown; + if (w_value || w_index) + break; + /* just read that many bytes into the buffer */ + if (w_length > req->length) + break; + value = w_length; + break; + case 0x5c: /* control READ test -- return the buffer */ + if (ctrl->bRequestType != (USB_DIR_IN|USB_TYPE_VENDOR)) + goto unknown; + if (w_value || w_index) + break; + /* expect those bytes are still in the buffer; send back */ + if (w_length > req->length) + break; + value = w_length; + break; + + default: +unknown: + VDBG(c->cdev, + "unknown control req%02x.%02x v%04x i%04x l%d\n", + ctrl->bRequestType, ctrl->bRequest, + w_value, w_index, w_length); + } + + /* respond with data transfer or status phase? */ + if (value >= 0) { + VDBG(c->cdev, "source/sink req%02x.%02x v%04x i%04x l%d\n", + ctrl->bRequestType, ctrl->bRequest, + w_value, w_index, w_length); + req->zero = 0; + req->length = value; + value = usb_ep_queue(c->cdev->gadget->ep0, req, GFP_ATOMIC); + if (value < 0) + ERROR(c->cdev, "source/sinkc response, err %d\n", + value); + } + + /* device either stalls (value < 0) or reports success */ + return value; +} + +static struct usb_configuration sourcesink_driver = { + .label = "source/sink", + .strings = sourcesink_strings, + .bind = sourcesink_bind_config, + .setup = sourcesink_setup, + .bConfigurationValue = 3, + .bmAttributes = USB_CONFIG_ATT_SELFPOWER, + .bMaxPower = 1, /* 2 mA, minimal */ + /* .iConfiguration = DYNAMIC */ +}; + +/** + * sourcesink_add - add a source/sink testing configuration to a device + * @cdev: the device to support the configuration + */ +int __init sourcesink_add(struct usb_composite_dev *cdev) +{ + int id; + + /* allocate string ID(s) */ + id = usb_string_id(cdev); + if (id < 0) + return id; + strings_sourcesink[0].id = id; + + source_sink_intf.iInterface = id; + sourcesink_driver.iConfiguration = id; + + /* FIXME pass in bConfigurationValue and OTG stuff */ + + /* support autoresume for remote wakeup testing */ + if (autoresume) + sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; + + /* support OTG systems */ + if (gadget_is_otg(cdev->gadget)) { + sourcesink_driver.descriptors = otg_desc; + sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; + } + + return usb_add_config(cdev, &sourcesink_driver); +} diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 47bb9f09a1aa..15c24edbb61a 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -3867,8 +3867,8 @@ static int __init fsg_bind(struct usb_gadget *gadget) curlun->dev.parent = &gadget->dev; curlun->dev.driver = &fsg_driver.driver; dev_set_drvdata(&curlun->dev, fsg); - snprintf(curlun->dev.bus_id, BUS_ID_SIZE, - "%s-lun%d", gadget->dev.bus_id, i); + dev_set_name(&curlun->dev,"%s-lun%d", + dev_name(&gadget->dev), i); if ((rc = device_register(&curlun->dev)) != 0) { INFO(fsg, "failed to register LUN%d: %d\n", i, rc); diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c index 18687543d7fa..1695382f30fe 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.c +++ b/drivers/usb/gadget/fsl_usb2_udc.c @@ -2331,7 +2331,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) udc_controller->gadget.name = driver_name; /* Setup gadget.dev and register with kernel */ - strcpy(udc_controller->gadget.dev.bus_id, "gadget"); + dev_set_name(&udc_controller->gadget.dev, "gadget"); udc_controller->gadget.dev.release = fsl_udc_release; udc_controller->gadget.dev.parent = &pdev->dev; ret = device_register(&udc_controller->gadget.dev); diff --git a/drivers/usb/gadget/g_zero.h b/drivers/usb/gadget/g_zero.h new file mode 100644 index 000000000000..8c28330501cb --- /dev/null +++ b/drivers/usb/gadget/g_zero.h @@ -0,0 +1,25 @@ +/* + * This header declares the utility functions used by "Gadget Zero", plus + * interfaces to its two single-configuration function drivers. + */ + +#ifndef __G_ZERO_H +#define __G_ZERO_H + +#include <linux/usb/composite.h> + +/* global state */ +extern unsigned buflen; +extern const struct usb_descriptor_header **otg_desc; + +/* common utilities */ +struct usb_request *alloc_ep_req(struct usb_ep *ep); +void free_ep_req(struct usb_ep *ep, struct usb_request *req); +void disable_endpoints(struct usb_composite_dev *cdev, + struct usb_ep *in, struct usb_ep *out); + +/* configuration-specific linkup */ +int sourcesink_add(struct usb_composite_dev *cdev); +int loopback_add(struct usb_composite_dev *cdev); + +#endif /* __G_ZERO_H */ diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index be6613afedbf..48f1c63b7013 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -1790,7 +1790,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) dev->gadget.ops = &goku_ops; /* the "gadget" abstracts/virtualizes the controller */ - strcpy(dev->gadget.dev.bus_id, "gadget"); + dev_set_name(&dev->gadget.dev, "gadget"); dev->gadget.dev.parent = &pdev->dev; dev->gadget.dev.dma_mask = pdev->dev.dma_mask; dev->gadget.dev.release = gadget_release; diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 69b0a2754f2a..dffb249c2a74 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -32,6 +32,7 @@ #include <asm/uaccess.h> #include <linux/slab.h> #include <linux/poll.h> +#include <linux/smp_lock.h> #include <linux/device.h> #include <linux/moduleparam.h> @@ -483,8 +484,7 @@ ep_release (struct inode *inode, struct file *fd) return 0; } -static int ep_ioctl (struct inode *inode, struct file *fd, - unsigned code, unsigned long value) +static long ep_ioctl(struct file *fd, unsigned code, unsigned long value) { struct ep_data *data = fd->private_data; int status; @@ -740,7 +740,7 @@ static const struct file_operations ep_io_operations = { .read = ep_read, .write = ep_write, - .ioctl = ep_ioctl, + .unlocked_ioctl = ep_ioctl, .release = ep_release, .aio_read = ep_aio_read, @@ -1294,15 +1294,18 @@ out: return mask; } -static int dev_ioctl (struct inode *inode, struct file *fd, - unsigned code, unsigned long value) +static long dev_ioctl (struct file *fd, unsigned code, unsigned long value) { struct dev_data *dev = fd->private_data; struct usb_gadget *gadget = dev->gadget; + long ret = -ENOTTY; - if (gadget->ops->ioctl) - return gadget->ops->ioctl (gadget, code, value); - return -ENOTTY; + if (gadget->ops->ioctl) { + lock_kernel(); + ret = gadget->ops->ioctl (gadget, code, value); + unlock_kernel(); + } + return ret; } /* used after device configuration */ @@ -1314,7 +1317,7 @@ static const struct file_operations ep0_io_operations = { .write = ep0_write, .fasync = ep0_fasync, .poll = ep0_poll, - .ioctl = dev_ioctl, + .unlocked_ioctl = dev_ioctl, .release = dev_release, }; @@ -1964,7 +1967,7 @@ static const struct file_operations dev_init_operations = { .open = dev_open, .write = dev_config, .fasync = ep0_fasync, - .ioctl = dev_ioctl, + .unlocked_ioctl = dev_ioctl, .release = dev_release, }; diff --git a/drivers/usb/gadget/lh7a40x_udc.c b/drivers/usb/gadget/lh7a40x_udc.c index 825abd2621b3..c6e7df04c69a 100644 --- a/drivers/usb/gadget/lh7a40x_udc.c +++ b/drivers/usb/gadget/lh7a40x_udc.c @@ -1970,7 +1970,7 @@ static const struct usb_gadget_ops lh7a40x_udc_ops = { static void nop_release(struct device *dev) { - DEBUG("%s %s\n", __func__, dev->bus_id); + DEBUG("%s %s\n", __func__, dev_name(dev)); } static struct lh7a40x_udc memory = { diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c index ee6b35fa870f..8da7535c0c70 100644 --- a/drivers/usb/gadget/m66592-udc.c +++ b/drivers/usb/gadget/m66592-udc.c @@ -1593,7 +1593,7 @@ static int __init m66592_probe(struct platform_device *pdev) m66592->gadget.ops = &m66592_gadget_ops; device_initialize(&m66592->gadget.dev); - strcpy(m66592->gadget.dev.bus_id, "gadget"); + dev_set_name(&m66592->gadget, "gadget"); m66592->gadget.is_dualspeed = 1; m66592->gadget.dev.parent = &pdev->dev; m66592->gadget.dev.dma_mask = pdev->dev.dma_mask; diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index e01862300169..b67ab677af72 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -2768,7 +2768,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) dev->gadget.is_dualspeed = 1; /* the "gadget" abstracts/virtualizes the controller */ - strcpy (dev->gadget.dev.bus_id, "gadget"); + dev_set_name(&dev->gadget.dev, "gadget"); dev->gadget.dev.parent = &pdev->dev; dev->gadget.dev.dma_mask = pdev->dev.dma_mask; dev->gadget.dev.release = gadget_release; diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index 881d74c3d964..8feacaec682e 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -2662,7 +2662,7 @@ omap_udc_setup(struct platform_device *odev, struct otg_transceiver *xceiv) udc->gadget.name = driver_name; device_initialize(&udc->gadget.dev); - strcpy (udc->gadget.dev.bus_id, "gadget"); + dev_set_name(&udc->gadget.dev, "gadget"); udc->gadget.dev.release = omap_udc_release; udc->gadget.dev.parent = &odev->dev; if (use_dma) diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 76be75e3ab8f..6a84a78321e1 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -827,9 +827,8 @@ printer_poll(struct file *fd, poll_table *wait) return status; } -static int -printer_ioctl(struct inode *inode, struct file *fd, unsigned int code, - unsigned long arg) +static long +printer_ioctl(struct file *fd, unsigned int code, unsigned long arg) { struct printer_dev *dev = fd->private_data; unsigned long flags; @@ -868,7 +867,7 @@ static struct file_operations printer_io_operations = { .write = printer_write, .fsync = printer_fsync, .poll = printer_poll, - .ioctl = printer_ioctl, + .unlocked_ioctl = printer_ioctl, .release = printer_close }; @@ -1360,8 +1359,8 @@ printer_bind(struct usb_gadget *gadget) /* Setup the sysfs files for the printer gadget. */ - dev->pdev = device_create(usb_gadget_class, NULL, g_printer_devno, - "g_printer"); + dev->pdev = device_create_drvdata(usb_gadget_class, NULL, + g_printer_devno, NULL, "g_printer"); if (IS_ERR(dev->pdev)) { ERROR(dev, "Failed to create device: g_printer\n"); goto fail; diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c index 08f699b1fc57..32c0f131886b 100644 --- a/drivers/usb/gadget/pxa2xx_udc.c +++ b/drivers/usb/gadget/pxa2xx_udc.c @@ -1813,7 +1813,7 @@ pxa2xx_udc_irq(int irq, void *_dev) static void nop_release (struct device *dev) { - DMSG("%s %s\n", __func__, dev->bus_id); + DMSG("%s %s\n", __func__, dev_name(dev)); } /* this uses load-time allocation and initialization (instead of diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index d0677f5d3cd5..d252015576fb 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -1,8 +1,6 @@ /* * RNDIS MSG parser * - * Version: $Id: rndis.c,v 1.19 2004/03/25 21:33:46 robert Exp $ - * * Authors: Benedikt Spranger, Pengutronix * Robert Schwebel, Pengutronix * @@ -30,6 +28,7 @@ #include <linux/init.h> #include <linux/list.h> #include <linux/proc_fs.h> +#include <linux/seq_file.h> #include <linux/netdevice.h> #include <asm/io.h> @@ -1296,14 +1295,11 @@ int rndis_rm_hdr(struct sk_buff *skb) #ifdef CONFIG_USB_GADGET_DEBUG_FILES -static int rndis_proc_read (char *page, char **start, off_t off, int count, int *eof, - void *data) +static int rndis_proc_show(struct seq_file *m, void *v) { - char *out = page; - int len; - rndis_params *param = (rndis_params *) data; + rndis_params *param = m->private; - out += snprintf (out, count, + seq_printf(m, "Config Nr. %d\n" "used : %s\n" "state : %s\n" @@ -1326,25 +1322,13 @@ static int rndis_proc_read (char *page, char **start, off_t off, int count, int (param->media_state) ? 0 : param->speed*100, (param->media_state) ? "disconnected" : "connected", param->vendorID, param->vendorDescr); - - len = out - page; - len -= off; - - if (len < count) { - *eof = 1; - if (len <= 0) - return 0; - } else - len = count; - - *start = page + off; - return len; + return 0; } -static int rndis_proc_write (struct file *file, const char __user *buffer, - unsigned long count, void *data) +static ssize_t rndis_proc_write(struct file *file, const char __user *buffer, + size_t count, loff_t *ppos) { - rndis_params *p = data; + rndis_params *p = PDE(file->f_path.dentry->d_inode)->data; u32 speed = 0; int i, fl_speed = 0; @@ -1386,6 +1370,20 @@ static int rndis_proc_write (struct file *file, const char __user *buffer, return count; } +static int rndis_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, rndis_proc_show, PDE(inode)->data); +} + +static const struct file_operations rndis_proc_fops = { + .owner = THIS_MODULE, + .open = rndis_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = rndis_proc_write, +}; + #define NAME_TEMPLATE "driver/rndis-%03d" static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS]; @@ -1403,7 +1401,9 @@ int __init rndis_init (void) sprintf (name, NAME_TEMPLATE, i); if (!(rndis_connect_state [i] - = create_proc_entry (name, 0660, NULL))) + = proc_create_data(name, 0660, NULL, + &rndis_proc_fops, + (void *)(rndis_per_dev_params + i)))) { DBG("%s :remove entries", __func__); while (i) { @@ -1413,11 +1413,6 @@ int __init rndis_init (void) DBG("\n"); return -EIO; } - - rndis_connect_state [i]->write_proc = rndis_proc_write; - rndis_connect_state [i]->read_proc = rndis_proc_read; - rndis_connect_state [i]->data = (void *) - (rndis_per_dev_params + i); #endif rndis_per_dev_params [i].confignr = i; rndis_per_dev_params [i].used = 0; diff --git a/drivers/usb/gadget/rndis.h b/drivers/usb/gadget/rndis.h index 397b149f3ca7..b917b4f34ea8 100644 --- a/drivers/usb/gadget/rndis.h +++ b/drivers/usb/gadget/rndis.h @@ -1,8 +1,6 @@ /* * RNDIS Definitions for Remote NDIS * - * Version: $Id: rndis.h,v 1.15 2004/03/25 21:33:46 robert Exp $ - * * Authors: Benedikt Spranger, Pengutronix * Robert Schwebel, Pengutronix * diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index fa019fa73334..c96fab8e970b 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -1,15 +1,8 @@ /* - * g_serial.c -- USB gadget serial driver + * serial.c -- USB gadget serial driver * - * Copyright 2003 (C) Al Borchers (alborchers@steinerpoint.com) - * - * This code is based in part on the Gadget Zero driver, which - * is Copyright (C) 2003 by David Brownell, all rights reserved. - * - * This code also borrows from usbserial.c, which is - * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com) - * Copyright (C) 2000 Peter Berger (pberger@brimson.com) - * Copyright (C) 2000 Al Borchers (alborchers@steinerpoint.com) + * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com) + * Copyright (C) 2008 by David Brownell * * This software is distributed under the terms of the GNU General * Public License ("GPL") as published by the Free Software Foundation, @@ -22,2254 +15,236 @@ #include <linux/tty.h> #include <linux/tty_flip.h> -#include <linux/usb/ch9.h> -#include <linux/usb/cdc.h> -#include <linux/usb/gadget.h> - +#include "u_serial.h" #include "gadget_chips.h" /* Defines */ -#define GS_VERSION_STR "v2.2" -#define GS_VERSION_NUM 0x2200 +#define GS_VERSION_STR "v2.4" +#define GS_VERSION_NUM 0x2400 #define GS_LONG_NAME "Gadget Serial" -#define GS_SHORT_NAME "g_serial" - -#define GS_MAJOR 127 -#define GS_MINOR_START 0 - -/* REVISIT only one port is supported for now; - * see gs_{send,recv}_packet() ... no multiplexing, - * and no support for multiple ACM devices. - */ -#define GS_NUM_PORTS 1 - -#define GS_NUM_CONFIGS 1 -#define GS_NO_CONFIG_ID 0 -#define GS_BULK_CONFIG_ID 1 -#define GS_ACM_CONFIG_ID 2 - -#define GS_MAX_NUM_INTERFACES 2 -#define GS_BULK_INTERFACE_ID 0 -#define GS_CONTROL_INTERFACE_ID 0 -#define GS_DATA_INTERFACE_ID 1 - -#define GS_MAX_DESC_LEN 256 - -#define GS_DEFAULT_READ_Q_SIZE 32 -#define GS_DEFAULT_WRITE_Q_SIZE 32 - -#define GS_DEFAULT_WRITE_BUF_SIZE 8192 -#define GS_TMP_BUF_SIZE 8192 - -#define GS_CLOSE_TIMEOUT 15 - -#define GS_DEFAULT_USE_ACM 0 - -/* 9600-8-N-1 ... matches init_termios.c_cflag and defaults - * expected by "usbser.sys" on MS-Windows. - */ -#define GS_DEFAULT_DTE_RATE 9600 -#define GS_DEFAULT_DATA_BITS 8 -#define GS_DEFAULT_PARITY USB_CDC_NO_PARITY -#define GS_DEFAULT_CHAR_FORMAT USB_CDC_1_STOP_BITS - -/* maxpacket and other transfer characteristics vary by speed. */ -static inline struct usb_endpoint_descriptor * -choose_ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *hs, - struct usb_endpoint_descriptor *fs) -{ - if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) - return hs; - return fs; -} - - -/* debug settings */ -#ifdef DEBUG -static int debug = 1; -#else -#define debug 0 -#endif - -#define gs_debug(format, arg...) \ - do { if (debug) pr_debug(format, ## arg); } while (0) -#define gs_debug_level(level, format, arg...) \ - do { if (debug >= level) pr_debug(format, ## arg); } while (0) +#define GS_VERSION_NAME GS_LONG_NAME " " GS_VERSION_STR +/*-------------------------------------------------------------------------*/ /* Thanks to NetChip Technologies for donating this product ID. - * - * DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!! - * Instead: allocate your own, using normal USB-IF procedures. - */ +* +* DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!! +* Instead: allocate your own, using normal USB-IF procedures. +*/ #define GS_VENDOR_ID 0x0525 /* NetChip */ #define GS_PRODUCT_ID 0xa4a6 /* Linux-USB Serial Gadget */ #define GS_CDC_PRODUCT_ID 0xa4a7 /* ... as CDC-ACM */ -#define GS_LOG2_NOTIFY_INTERVAL 5 /* 1 << 5 == 32 msec */ -#define GS_NOTIFY_MAXPACKET 8 +/* string IDs are assigned dynamically */ +#define STRING_MANUFACTURER_IDX 0 +#define STRING_PRODUCT_IDX 1 +#define STRING_DESCRIPTION_IDX 2 -/* circular buffer */ -struct gs_buf { - unsigned int buf_size; - char *buf_buf; - char *buf_get; - char *buf_put; -}; +static char manufacturer[50]; -/* the port structure holds info for each port, one for each minor number */ -struct gs_port { - struct gs_dev *port_dev; /* pointer to device struct */ - struct tty_struct *port_tty; /* pointer to tty struct */ - spinlock_t port_lock; - int port_num; - int port_open_count; - int port_in_use; /* open/close in progress */ - wait_queue_head_t port_write_wait;/* waiting to write */ - struct gs_buf *port_write_buf; - struct usb_cdc_line_coding port_line_coding; /* 8-N-1 etc */ - u16 port_handshake_bits; -#define RS232_RTS (1 << 1) -#define RS232_DTE (1 << 0) +static struct usb_string strings_dev[] = { + [STRING_MANUFACTURER_IDX].s = manufacturer, + [STRING_PRODUCT_IDX].s = GS_VERSION_NAME, + [STRING_DESCRIPTION_IDX].s = NULL /* updated; f(use_acm) */, + { } /* end of list */ }; -/* the device structure holds info for the USB device */ -struct gs_dev { - struct usb_gadget *dev_gadget; /* gadget device pointer */ - spinlock_t dev_lock; /* lock for set/reset config */ - int dev_config; /* configuration number */ - struct usb_ep *dev_notify_ep; /* address of notify endpoint */ - struct usb_ep *dev_in_ep; /* address of in endpoint */ - struct usb_ep *dev_out_ep; /* address of out endpoint */ - struct usb_endpoint_descriptor /* descriptor of notify ep */ - *dev_notify_ep_desc; - struct usb_endpoint_descriptor /* descriptor of in endpoint */ - *dev_in_ep_desc; - struct usb_endpoint_descriptor /* descriptor of out endpoint */ - *dev_out_ep_desc; - struct usb_request *dev_ctrl_req; /* control request */ - struct list_head dev_req_list; /* list of write requests */ - int dev_sched_port; /* round robin port scheduled */ - struct gs_port *dev_port[GS_NUM_PORTS]; /* the ports */ +static struct usb_gadget_strings stringtab_dev = { + .language = 0x0409, /* en-us */ + .strings = strings_dev, }; - -/* Functions */ - -/* tty driver internals */ -static int gs_send(struct gs_dev *dev); -static int gs_send_packet(struct gs_dev *dev, char *packet, - unsigned int size); -static int gs_recv_packet(struct gs_dev *dev, char *packet, - unsigned int size); -static void gs_read_complete(struct usb_ep *ep, struct usb_request *req); -static void gs_write_complete(struct usb_ep *ep, struct usb_request *req); - -/* gadget driver internals */ -static int gs_set_config(struct gs_dev *dev, unsigned config); -static void gs_reset_config(struct gs_dev *dev); -static int gs_build_config_buf(u8 *buf, struct usb_gadget *g, - u8 type, unsigned int index, int is_otg); - -static struct usb_request *gs_alloc_req(struct usb_ep *ep, unsigned int len, - gfp_t kmalloc_flags); -static void gs_free_req(struct usb_ep *ep, struct usb_request *req); - -static int gs_alloc_ports(struct gs_dev *dev, gfp_t kmalloc_flags); -static void gs_free_ports(struct gs_dev *dev); - -/* circular buffer */ -static struct gs_buf *gs_buf_alloc(unsigned int size, gfp_t kmalloc_flags); -static void gs_buf_free(struct gs_buf *gb); -static void gs_buf_clear(struct gs_buf *gb); -static unsigned int gs_buf_data_avail(struct gs_buf *gb); -static unsigned int gs_buf_space_avail(struct gs_buf *gb); -static unsigned int gs_buf_put(struct gs_buf *gb, const char *buf, - unsigned int count); -static unsigned int gs_buf_get(struct gs_buf *gb, char *buf, - unsigned int count); - - -/* Globals */ - -static struct gs_dev *gs_device; - -static struct mutex gs_open_close_lock[GS_NUM_PORTS]; - - -/*-------------------------------------------------------------------------*/ - -/* USB descriptors */ - -#define GS_MANUFACTURER_STR_ID 1 -#define GS_PRODUCT_STR_ID 2 -#define GS_SERIAL_STR_ID 3 -#define GS_BULK_CONFIG_STR_ID 4 -#define GS_ACM_CONFIG_STR_ID 5 -#define GS_CONTROL_STR_ID 6 -#define GS_DATA_STR_ID 7 - -/* static strings, in UTF-8 */ -static char manufacturer[50]; -static struct usb_string gs_strings[] = { - { GS_MANUFACTURER_STR_ID, manufacturer }, - { GS_PRODUCT_STR_ID, GS_LONG_NAME }, - { GS_BULK_CONFIG_STR_ID, "Gadget Serial Bulk" }, - { GS_ACM_CONFIG_STR_ID, "Gadget Serial CDC ACM" }, - { GS_CONTROL_STR_ID, "Gadget Serial Control" }, - { GS_DATA_STR_ID, "Gadget Serial Data" }, - { } /* end of list */ -}; - -static struct usb_gadget_strings gs_string_table = { - .language = 0x0409, /* en-us */ - .strings = gs_strings, +static struct usb_gadget_strings *dev_strings[] = { + &stringtab_dev, + NULL, }; -static struct usb_device_descriptor gs_device_desc = { +static struct usb_device_descriptor device_desc = { .bLength = USB_DT_DEVICE_SIZE, .bDescriptorType = USB_DT_DEVICE, .bcdUSB = __constant_cpu_to_le16(0x0200), + /* .bDeviceClass = f(use_acm) */ .bDeviceSubClass = 0, .bDeviceProtocol = 0, + /* .bMaxPacketSize0 = f(hardware) */ .idVendor = __constant_cpu_to_le16(GS_VENDOR_ID), - .idProduct = __constant_cpu_to_le16(GS_PRODUCT_ID), - .iManufacturer = GS_MANUFACTURER_STR_ID, - .iProduct = GS_PRODUCT_STR_ID, - .bNumConfigurations = GS_NUM_CONFIGS, + /* .idProduct = f(use_acm) */ + /* .iManufacturer = DYNAMIC */ + /* .iProduct = DYNAMIC */ + .bNumConfigurations = 1, }; -static struct usb_otg_descriptor gs_otg_descriptor = { - .bLength = sizeof(gs_otg_descriptor), +static struct usb_otg_descriptor otg_descriptor = { + .bLength = sizeof otg_descriptor, .bDescriptorType = USB_DT_OTG, - .bmAttributes = USB_OTG_SRP, -}; - -static struct usb_config_descriptor gs_bulk_config_desc = { - .bLength = USB_DT_CONFIG_SIZE, - .bDescriptorType = USB_DT_CONFIG, - /* .wTotalLength computed dynamically */ - .bNumInterfaces = 1, - .bConfigurationValue = GS_BULK_CONFIG_ID, - .iConfiguration = GS_BULK_CONFIG_STR_ID, - .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, -}; - -static struct usb_config_descriptor gs_acm_config_desc = { - .bLength = USB_DT_CONFIG_SIZE, - .bDescriptorType = USB_DT_CONFIG, - /* .wTotalLength computed dynamically */ - .bNumInterfaces = 2, - .bConfigurationValue = GS_ACM_CONFIG_ID, - .iConfiguration = GS_ACM_CONFIG_STR_ID, - .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, -}; - -static const struct usb_interface_descriptor gs_bulk_interface_desc = { - .bLength = USB_DT_INTERFACE_SIZE, - .bDescriptorType = USB_DT_INTERFACE, - .bInterfaceNumber = GS_BULK_INTERFACE_ID, - .bNumEndpoints = 2, - .bInterfaceClass = USB_CLASS_VENDOR_SPEC, - .bInterfaceSubClass = 0, - .bInterfaceProtocol = 0, - .iInterface = GS_DATA_STR_ID, -}; - -static const struct usb_interface_descriptor gs_control_interface_desc = { - .bLength = USB_DT_INTERFACE_SIZE, - .bDescriptorType = USB_DT_INTERFACE, - .bInterfaceNumber = GS_CONTROL_INTERFACE_ID, - .bNumEndpoints = 1, - .bInterfaceClass = USB_CLASS_COMM, - .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM, - .bInterfaceProtocol = USB_CDC_ACM_PROTO_AT_V25TER, - .iInterface = GS_CONTROL_STR_ID, -}; - -static const struct usb_interface_descriptor gs_data_interface_desc = { - .bLength = USB_DT_INTERFACE_SIZE, - .bDescriptorType = USB_DT_INTERFACE, - .bInterfaceNumber = GS_DATA_INTERFACE_ID, - .bNumEndpoints = 2, - .bInterfaceClass = USB_CLASS_CDC_DATA, - .bInterfaceSubClass = 0, - .bInterfaceProtocol = 0, - .iInterface = GS_DATA_STR_ID, -}; - -static const struct usb_cdc_header_desc gs_header_desc = { - .bLength = sizeof(gs_header_desc), - .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubType = USB_CDC_HEADER_TYPE, - .bcdCDC = __constant_cpu_to_le16(0x0110), -}; - -static const struct usb_cdc_call_mgmt_descriptor gs_call_mgmt_descriptor = { - .bLength = sizeof(gs_call_mgmt_descriptor), - .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubType = USB_CDC_CALL_MANAGEMENT_TYPE, - .bmCapabilities = 0, - .bDataInterface = 1, /* index of data interface */ -}; - -static struct usb_cdc_acm_descriptor gs_acm_descriptor = { - .bLength = sizeof(gs_acm_descriptor), - .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubType = USB_CDC_ACM_TYPE, - .bmCapabilities = (1 << 1), -}; - -static const struct usb_cdc_union_desc gs_union_desc = { - .bLength = sizeof(gs_union_desc), - .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubType = USB_CDC_UNION_TYPE, - .bMasterInterface0 = 0, /* index of control interface */ - .bSlaveInterface0 = 1, /* index of data interface */ -}; - -static struct usb_endpoint_descriptor gs_fullspeed_notify_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(GS_NOTIFY_MAXPACKET), - .bInterval = 1 << GS_LOG2_NOTIFY_INTERVAL, -}; - -static struct usb_endpoint_descriptor gs_fullspeed_in_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_BULK, -}; - -static struct usb_endpoint_descriptor gs_fullspeed_out_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - .bEndpointAddress = USB_DIR_OUT, - .bmAttributes = USB_ENDPOINT_XFER_BULK, -}; - -static const struct usb_descriptor_header *gs_bulk_fullspeed_function[] = { - (struct usb_descriptor_header *) &gs_otg_descriptor, - (struct usb_descriptor_header *) &gs_bulk_interface_desc, - (struct usb_descriptor_header *) &gs_fullspeed_in_desc, - (struct usb_descriptor_header *) &gs_fullspeed_out_desc, - NULL, -}; - -static const struct usb_descriptor_header *gs_acm_fullspeed_function[] = { - (struct usb_descriptor_header *) &gs_otg_descriptor, - (struct usb_descriptor_header *) &gs_control_interface_desc, - (struct usb_descriptor_header *) &gs_header_desc, - (struct usb_descriptor_header *) &gs_call_mgmt_descriptor, - (struct usb_descriptor_header *) &gs_acm_descriptor, - (struct usb_descriptor_header *) &gs_union_desc, - (struct usb_descriptor_header *) &gs_fullspeed_notify_desc, - (struct usb_descriptor_header *) &gs_data_interface_desc, - (struct usb_descriptor_header *) &gs_fullspeed_in_desc, - (struct usb_descriptor_header *) &gs_fullspeed_out_desc, - NULL, -}; -static struct usb_endpoint_descriptor gs_highspeed_notify_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(GS_NOTIFY_MAXPACKET), - .bInterval = GS_LOG2_NOTIFY_INTERVAL+4, -}; - -static struct usb_endpoint_descriptor gs_highspeed_in_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), -}; - -static struct usb_endpoint_descriptor gs_highspeed_out_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), -}; - -static struct usb_qualifier_descriptor gs_qualifier_desc = { - .bLength = sizeof(struct usb_qualifier_descriptor), - .bDescriptorType = USB_DT_DEVICE_QUALIFIER, - .bcdUSB = __constant_cpu_to_le16 (0x0200), - /* assumes ep0 uses the same value for both speeds ... */ - .bNumConfigurations = GS_NUM_CONFIGS, -}; - -static const struct usb_descriptor_header *gs_bulk_highspeed_function[] = { - (struct usb_descriptor_header *) &gs_otg_descriptor, - (struct usb_descriptor_header *) &gs_bulk_interface_desc, - (struct usb_descriptor_header *) &gs_highspeed_in_desc, - (struct usb_descriptor_header *) &gs_highspeed_out_desc, - NULL, + /* REVISIT SRP-only hardware is possible, although + * it would not be called "OTG" ... + */ + .bmAttributes = USB_OTG_SRP | USB_OTG_HNP, }; -static const struct usb_descriptor_header *gs_acm_highspeed_function[] = { - (struct usb_descriptor_header *) &gs_otg_descriptor, - (struct usb_descriptor_header *) &gs_control_interface_desc, - (struct usb_descriptor_header *) &gs_header_desc, - (struct usb_descriptor_header *) &gs_call_mgmt_descriptor, - (struct usb_descriptor_header *) &gs_acm_descriptor, - (struct usb_descriptor_header *) &gs_union_desc, - (struct usb_descriptor_header *) &gs_highspeed_notify_desc, - (struct usb_descriptor_header *) &gs_data_interface_desc, - (struct usb_descriptor_header *) &gs_highspeed_in_desc, - (struct usb_descriptor_header *) &gs_highspeed_out_desc, +static const struct usb_descriptor_header *otg_desc[] = { + (struct usb_descriptor_header *) &otg_descriptor, NULL, }; - /*-------------------------------------------------------------------------*/ /* Module */ -MODULE_DESCRIPTION(GS_LONG_NAME); +MODULE_DESCRIPTION(GS_VERSION_NAME); MODULE_AUTHOR("Al Borchers"); +MODULE_AUTHOR("David Brownell"); MODULE_LICENSE("GPL"); -#ifdef DEBUG -module_param(debug, int, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(debug, "Enable debugging, 0=off, 1=on"); -#endif - -static unsigned int read_q_size = GS_DEFAULT_READ_Q_SIZE; -module_param(read_q_size, uint, S_IRUGO); -MODULE_PARM_DESC(read_q_size, "Read request queue size, default=32"); - -static unsigned int write_q_size = GS_DEFAULT_WRITE_Q_SIZE; -module_param(write_q_size, uint, S_IRUGO); -MODULE_PARM_DESC(write_q_size, "Write request queue size, default=32"); +static int use_acm = true; +module_param(use_acm, bool, 0); +MODULE_PARM_DESC(use_acm, "Use CDC ACM, default=yes"); -static unsigned int write_buf_size = GS_DEFAULT_WRITE_BUF_SIZE; -module_param(write_buf_size, uint, S_IRUGO); -MODULE_PARM_DESC(write_buf_size, "Write buffer size, default=8192"); - -static unsigned int use_acm = GS_DEFAULT_USE_ACM; -module_param(use_acm, uint, S_IRUGO); -MODULE_PARM_DESC(use_acm, "Use CDC ACM, 0=no, 1=yes, default=no"); +static unsigned n_ports = 1; +module_param(n_ports, uint, 0); +MODULE_PARM_DESC(n_ports, "number of ports to create, default=1"); /*-------------------------------------------------------------------------*/ -/* TTY Driver */ - -/* - * gs_open - */ -static int gs_open(struct tty_struct *tty, struct file *file) -{ - int port_num; - unsigned long flags; - struct gs_port *port; - struct gs_dev *dev; - struct gs_buf *buf; - struct mutex *mtx; - int ret; - - port_num = tty->index; - - gs_debug("gs_open: (%d,%p,%p)\n", port_num, tty, file); - - if (port_num < 0 || port_num >= GS_NUM_PORTS) { - pr_err("gs_open: (%d,%p,%p) invalid port number\n", - port_num, tty, file); - return -ENODEV; - } - - dev = gs_device; - - if (dev == NULL) { - pr_err("gs_open: (%d,%p,%p) NULL device pointer\n", - port_num, tty, file); - return -ENODEV; - } - - mtx = &gs_open_close_lock[port_num]; - if (mutex_lock_interruptible(mtx)) { - pr_err("gs_open: (%d,%p,%p) interrupted waiting for mutex\n", - port_num, tty, file); - return -ERESTARTSYS; - } - - spin_lock_irqsave(&dev->dev_lock, flags); - - if (dev->dev_config == GS_NO_CONFIG_ID) { - pr_err("gs_open: (%d,%p,%p) device is not connected\n", - port_num, tty, file); - ret = -ENODEV; - goto exit_unlock_dev; - } - - port = dev->dev_port[port_num]; - - if (port == NULL) { - pr_err("gs_open: (%d,%p,%p) NULL port pointer\n", - port_num, tty, file); - ret = -ENODEV; - goto exit_unlock_dev; - } - - spin_lock(&port->port_lock); - spin_unlock(&dev->dev_lock); - - if (port->port_dev == NULL) { - pr_err("gs_open: (%d,%p,%p) port disconnected (1)\n", - port_num, tty, file); - ret = -EIO; - goto exit_unlock_port; - } - - if (port->port_open_count > 0) { - ++port->port_open_count; - gs_debug("gs_open: (%d,%p,%p) already open\n", - port_num, tty, file); - ret = 0; - goto exit_unlock_port; - } - - tty->driver_data = NULL; - - /* mark port as in use, we can drop port lock and sleep if necessary */ - port->port_in_use = 1; - - /* allocate write buffer on first open */ - if (port->port_write_buf == NULL) { - spin_unlock_irqrestore(&port->port_lock, flags); - buf = gs_buf_alloc(write_buf_size, GFP_KERNEL); - spin_lock_irqsave(&port->port_lock, flags); - - /* might have been disconnected while asleep, check */ - if (port->port_dev == NULL) { - pr_err("gs_open: (%d,%p,%p) port disconnected (2)\n", - port_num, tty, file); - port->port_in_use = 0; - ret = -EIO; - goto exit_unlock_port; - } - - if ((port->port_write_buf=buf) == NULL) { - pr_err("gs_open: (%d,%p,%p) cannot allocate " - "port write buffer\n", - port_num, tty, file); - port->port_in_use = 0; - ret = -ENOMEM; - goto exit_unlock_port; - } - - } - - /* wait for carrier detect (not implemented) */ - - /* might have been disconnected while asleep, check */ - if (port->port_dev == NULL) { - pr_err("gs_open: (%d,%p,%p) port disconnected (3)\n", - port_num, tty, file); - port->port_in_use = 0; - ret = -EIO; - goto exit_unlock_port; - } - - tty->driver_data = port; - port->port_tty = tty; - port->port_open_count = 1; - port->port_in_use = 0; - - gs_debug("gs_open: (%d,%p,%p) completed\n", port_num, tty, file); - - ret = 0; - -exit_unlock_port: - spin_unlock_irqrestore(&port->port_lock, flags); - mutex_unlock(mtx); - return ret; - -exit_unlock_dev: - spin_unlock_irqrestore(&dev->dev_lock, flags); - mutex_unlock(mtx); - return ret; - -} - -/* - * gs_close - */ - -static int gs_write_finished_event_safely(struct gs_port *p) -{ - int cond; - - spin_lock_irq(&(p)->port_lock); - cond = !(p)->port_dev || !gs_buf_data_avail((p)->port_write_buf); - spin_unlock_irq(&(p)->port_lock); - return cond; -} - -static void gs_close(struct tty_struct *tty, struct file *file) -{ - struct gs_port *port = tty->driver_data; - struct mutex *mtx; - - if (port == NULL) { - pr_err("gs_close: NULL port pointer\n"); - return; - } - - gs_debug("gs_close: (%d,%p,%p)\n", port->port_num, tty, file); - - mtx = &gs_open_close_lock[port->port_num]; - mutex_lock(mtx); - - spin_lock_irq(&port->port_lock); - - if (port->port_open_count == 0) { - pr_err("gs_close: (%d,%p,%p) port is already closed\n", - port->port_num, tty, file); - goto exit; - } - - if (port->port_open_count > 1) { - --port->port_open_count; - goto exit; - } - - /* free disconnected port on final close */ - if (port->port_dev == NULL) { - kfree(port); - goto exit; - } - - /* mark port as closed but in use, we can drop port lock */ - /* and sleep if necessary */ - port->port_in_use = 1; - port->port_open_count = 0; - - /* wait for write buffer to drain, or */ - /* at most GS_CLOSE_TIMEOUT seconds */ - if (gs_buf_data_avail(port->port_write_buf) > 0) { - spin_unlock_irq(&port->port_lock); - wait_event_interruptible_timeout(port->port_write_wait, - gs_write_finished_event_safely(port), - GS_CLOSE_TIMEOUT * HZ); - spin_lock_irq(&port->port_lock); - } - - /* free disconnected port on final close */ - /* (might have happened during the above sleep) */ - if (port->port_dev == NULL) { - kfree(port); - goto exit; - } - - gs_buf_clear(port->port_write_buf); - - tty->driver_data = NULL; - port->port_tty = NULL; - port->port_in_use = 0; - - gs_debug("gs_close: (%d,%p,%p) completed\n", - port->port_num, tty, file); - -exit: - spin_unlock_irq(&port->port_lock); - mutex_unlock(mtx); -} - -/* - * gs_write - */ -static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count) +static int __init serial_bind_config(struct usb_configuration *c) { - unsigned long flags; - struct gs_port *port = tty->driver_data; - int ret; - - if (port == NULL) { - pr_err("gs_write: NULL port pointer\n"); - return -EIO; - } - - gs_debug("gs_write: (%d,%p) writing %d bytes\n", port->port_num, tty, - count); - - if (count == 0) - return 0; - - spin_lock_irqsave(&port->port_lock, flags); - - if (port->port_dev == NULL) { - pr_err("gs_write: (%d,%p) port is not connected\n", - port->port_num, tty); - ret = -EIO; - goto exit; - } - - if (port->port_open_count == 0) { - pr_err("gs_write: (%d,%p) port is closed\n", - port->port_num, tty); - ret = -EBADF; - goto exit; - } - - count = gs_buf_put(port->port_write_buf, buf, count); - - spin_unlock_irqrestore(&port->port_lock, flags); - - gs_send(gs_device); - - gs_debug("gs_write: (%d,%p) wrote %d bytes\n", port->port_num, tty, - count); + unsigned i; + int status = 0; - return count; - -exit: - spin_unlock_irqrestore(&port->port_lock, flags); - return ret; -} - -/* - * gs_put_char - */ -static int gs_put_char(struct tty_struct *tty, unsigned char ch) -{ - unsigned long flags; - struct gs_port *port = tty->driver_data; - int ret = 0; - - if (port == NULL) { - pr_err("gs_put_char: NULL port pointer\n"); - return 0; - } - - gs_debug("gs_put_char: (%d,%p) char=0x%x, called from %p\n", - port->port_num, tty, ch, __builtin_return_address(0)); - - spin_lock_irqsave(&port->port_lock, flags); - - if (port->port_dev == NULL) { - pr_err("gs_put_char: (%d,%p) port is not connected\n", - port->port_num, tty); - goto exit; - } - - if (port->port_open_count == 0) { - pr_err("gs_put_char: (%d,%p) port is closed\n", - port->port_num, tty); - goto exit; - } - - ret = gs_buf_put(port->port_write_buf, &ch, 1); - -exit: - spin_unlock_irqrestore(&port->port_lock, flags); - return ret; -} - -/* - * gs_flush_chars - */ -static void gs_flush_chars(struct tty_struct *tty) -{ - unsigned long flags; - struct gs_port *port = tty->driver_data; - - if (port == NULL) { - pr_err("gs_flush_chars: NULL port pointer\n"); - return; - } - - gs_debug("gs_flush_chars: (%d,%p)\n", port->port_num, tty); - - spin_lock_irqsave(&port->port_lock, flags); - - if (port->port_dev == NULL) { - pr_err("gs_flush_chars: (%d,%p) port is not connected\n", - port->port_num, tty); - goto exit; - } - - if (port->port_open_count == 0) { - pr_err("gs_flush_chars: (%d,%p) port is closed\n", - port->port_num, tty); - goto exit; - } - - spin_unlock_irqrestore(&port->port_lock, flags); - - gs_send(gs_device); - - return; - -exit: - spin_unlock_irqrestore(&port->port_lock, flags); -} - -/* - * gs_write_room - */ -static int gs_write_room(struct tty_struct *tty) -{ - - int room = 0; - unsigned long flags; - struct gs_port *port = tty->driver_data; - - - if (port == NULL) - return 0; - - spin_lock_irqsave(&port->port_lock, flags); - - if (port->port_dev != NULL && port->port_open_count > 0 - && port->port_write_buf != NULL) - room = gs_buf_space_avail(port->port_write_buf); - - spin_unlock_irqrestore(&port->port_lock, flags); - - gs_debug("gs_write_room: (%d,%p) room=%d\n", - port->port_num, tty, room); - - return room; -} - -/* - * gs_chars_in_buffer - */ -static int gs_chars_in_buffer(struct tty_struct *tty) -{ - int chars = 0; - unsigned long flags; - struct gs_port *port = tty->driver_data; - - if (port == NULL) - return 0; - - spin_lock_irqsave(&port->port_lock, flags); - - if (port->port_dev != NULL && port->port_open_count > 0 - && port->port_write_buf != NULL) - chars = gs_buf_data_avail(port->port_write_buf); - - spin_unlock_irqrestore(&port->port_lock, flags); - - gs_debug("gs_chars_in_buffer: (%d,%p) chars=%d\n", - port->port_num, tty, chars); - - return chars; -} - -/* - * gs_throttle - */ -static void gs_throttle(struct tty_struct *tty) -{ -} - -/* - * gs_unthrottle - */ -static void gs_unthrottle(struct tty_struct *tty) -{ -} - -/* - * gs_break - */ -static void gs_break(struct tty_struct *tty, int break_state) -{ -} - -/* - * gs_ioctl - */ -static int gs_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) -{ - struct gs_port *port = tty->driver_data; - - if (port == NULL) { - pr_err("gs_ioctl: NULL port pointer\n"); - return -EIO; + for (i = 0; i < n_ports && status == 0; i++) { + if (use_acm) + status = acm_bind_config(c, i); + else + status = gser_bind_config(c, i); } - - gs_debug("gs_ioctl: (%d,%p,%p) cmd=0x%4.4x, arg=%lu\n", - port->port_num, tty, file, cmd, arg); - - /* handle ioctls */ - - /* could not handle ioctl */ - return -ENOIOCTLCMD; -} - -/* - * gs_set_termios - */ -static void gs_set_termios(struct tty_struct *tty, struct ktermios *old) -{ + return status; } -static const struct tty_operations gs_tty_ops = { - .open = gs_open, - .close = gs_close, - .write = gs_write, - .put_char = gs_put_char, - .flush_chars = gs_flush_chars, - .write_room = gs_write_room, - .ioctl = gs_ioctl, - .set_termios = gs_set_termios, - .throttle = gs_throttle, - .unthrottle = gs_unthrottle, - .break_ctl = gs_break, - .chars_in_buffer = gs_chars_in_buffer, +static struct usb_configuration serial_config_driver = { + /* .label = f(use_acm) */ + .bind = serial_bind_config, + /* .bConfigurationValue = f(use_acm) */ + /* .iConfiguration = DYNAMIC */ + .bmAttributes = USB_CONFIG_ATT_SELFPOWER, + .bMaxPower = 1, /* 2 mA, minimal */ }; -/*-------------------------------------------------------------------------*/ - -/* -* gs_send -* -* This function finds available write requests, calls -* gs_send_packet to fill these packets with data, and -* continues until either there are no more write requests -* available or no more data to send. This function is -* run whenever data arrives or write requests are available. -*/ -static int gs_send(struct gs_dev *dev) -{ - int ret,len; - unsigned long flags; - struct usb_ep *ep; - struct usb_request *req; - - if (dev == NULL) { - pr_err("gs_send: NULL device pointer\n"); - return -ENODEV; - } - - spin_lock_irqsave(&dev->dev_lock, flags); - - ep = dev->dev_in_ep; - - while(!list_empty(&dev->dev_req_list)) { - - req = list_entry(dev->dev_req_list.next, - struct usb_request, list); - - len = gs_send_packet(dev, req->buf, ep->maxpacket); - - if (len > 0) { - gs_debug_level(3, "gs_send: len=%d, 0x%2.2x " - "0x%2.2x 0x%2.2x ...\n", len, - *((unsigned char *)req->buf), - *((unsigned char *)req->buf+1), - *((unsigned char *)req->buf+2)); - list_del(&req->list); - req->length = len; - spin_unlock_irqrestore(&dev->dev_lock, flags); - if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) { - pr_err( - "gs_send: cannot queue read request, ret=%d\n", - ret); - spin_lock_irqsave(&dev->dev_lock, flags); - break; - } - spin_lock_irqsave(&dev->dev_lock, flags); - } else { - break; - } - - } - - spin_unlock_irqrestore(&dev->dev_lock, flags); - - return 0; -} - -/* - * gs_send_packet - * - * If there is data to send, a packet is built in the given - * buffer and the size is returned. If there is no data to - * send, 0 is returned. If there is any error a negative - * error number is returned. - * - * Called during USB completion routine, on interrupt time. - * - * We assume that disconnect will not happen until all completion - * routines have completed, so we can assume that the dev_port - * array does not change during the lifetime of this function. - */ -static int gs_send_packet(struct gs_dev *dev, char *packet, unsigned int size) -{ - unsigned int len; - struct gs_port *port; - - /* TEMPORARY -- only port 0 is supported right now */ - port = dev->dev_port[0]; - - if (port == NULL) { - pr_err("gs_send_packet: port=%d, NULL port pointer\n", 0); - return -EIO; - } - - spin_lock(&port->port_lock); - - len = gs_buf_data_avail(port->port_write_buf); - if (len < size) - size = len; - - if (size == 0) - goto exit; - - size = gs_buf_get(port->port_write_buf, packet, size); - - if (port->port_tty) - wake_up_interruptible(&port->port_tty->write_wait); - -exit: - spin_unlock(&port->port_lock); - return size; -} - -/* - * gs_recv_packet - * - * Called for each USB packet received. Reads the packet - * header and stuffs the data in the appropriate tty buffer. - * Returns 0 if successful, or a negative error number. - * - * Called during USB completion routine, on interrupt time. - * - * We assume that disconnect will not happen until all completion - * routines have completed, so we can assume that the dev_port - * array does not change during the lifetime of this function. - */ -static int gs_recv_packet(struct gs_dev *dev, char *packet, unsigned int size) -{ - unsigned int len; - struct gs_port *port; - int ret; - struct tty_struct *tty; - - /* TEMPORARY -- only port 0 is supported right now */ - port = dev->dev_port[0]; - - if (port == NULL) { - pr_err("gs_recv_packet: port=%d, NULL port pointer\n", - port->port_num); - return -EIO; - } - - spin_lock(&port->port_lock); - - if (port->port_open_count == 0) { - pr_err("gs_recv_packet: port=%d, port is closed\n", - port->port_num); - ret = -EIO; - goto exit; - } - - - tty = port->port_tty; - - if (tty == NULL) { - pr_err("gs_recv_packet: port=%d, NULL tty pointer\n", - port->port_num); - ret = -EIO; - goto exit; - } - - if (port->port_tty->magic != TTY_MAGIC) { - pr_err("gs_recv_packet: port=%d, bad tty magic\n", - port->port_num); - ret = -EIO; - goto exit; - } - - len = tty_buffer_request_room(tty, size); - if (len > 0) { - tty_insert_flip_string(tty, packet, len); - tty_flip_buffer_push(port->port_tty); - wake_up_interruptible(&port->port_tty->read_wait); - } - ret = 0; -exit: - spin_unlock(&port->port_lock); - return ret; -} - -/* -* gs_read_complete -*/ -static void gs_read_complete(struct usb_ep *ep, struct usb_request *req) +static int __init gs_bind(struct usb_composite_dev *cdev) { - int ret; - struct gs_dev *dev = ep->driver_data; - - if (dev == NULL) { - pr_err("gs_read_complete: NULL device pointer\n"); - return; - } + int gcnum; + struct usb_gadget *gadget = cdev->gadget; + int status; - switch(req->status) { - case 0: - /* normal completion */ - gs_recv_packet(dev, req->buf, req->actual); -requeue: - req->length = ep->maxpacket; - if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) { - pr_err( - "gs_read_complete: cannot queue read request, ret=%d\n", - ret); - } - break; - - case -ESHUTDOWN: - /* disconnect */ - gs_debug("gs_read_complete: shutdown\n"); - gs_free_req(ep, req); - break; - - default: - /* unexpected */ - pr_err( - "gs_read_complete: unexpected status error, status=%d\n", - req->status); - goto requeue; - break; - } -} - -/* -* gs_write_complete -*/ -static void gs_write_complete(struct usb_ep *ep, struct usb_request *req) -{ - struct gs_dev *dev = ep->driver_data; - - if (dev == NULL) { - pr_err("gs_write_complete: NULL device pointer\n"); - return; - } + status = gserial_setup(cdev->gadget, n_ports); + if (status < 0) + return status; - switch(req->status) { - case 0: - /* normal completion */ -requeue: - spin_lock(&dev->dev_lock); - list_add(&req->list, &dev->dev_req_list); - spin_unlock(&dev->dev_lock); - - gs_send(dev); - - break; - - case -ESHUTDOWN: - /* disconnect */ - gs_debug("gs_write_complete: shutdown\n"); - gs_free_req(ep, req); - break; - - default: - pr_err( - "gs_write_complete: unexpected status error, status=%d\n", - req->status); - goto requeue; - break; - } -} + /* Allocate string descriptor numbers ... note that string + * contents can be overridden by the composite_dev glue. + */ -/*-------------------------------------------------------------------------*/ + /* device description: manufacturer, product */ + snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", + init_utsname()->sysname, init_utsname()->release, + gadget->name); + status = usb_string_id(cdev); + if (status < 0) + goto fail; + strings_dev[STRING_MANUFACTURER_IDX].id = status; -/* Gadget Driver */ + device_desc.iManufacturer = status; -/* - * gs_unbind - * - * Called on module unload. Frees the control request and device - * structure. - */ -static void /* __init_or_exit */ gs_unbind(struct usb_gadget *gadget) -{ - struct gs_dev *dev = get_gadget_data(gadget); + status = usb_string_id(cdev); + if (status < 0) + goto fail; + strings_dev[STRING_PRODUCT_IDX].id = status; - gs_device = NULL; + device_desc.iProduct = status; - /* read/write requests already freed, only control request remains */ - if (dev != NULL) { - if (dev->dev_ctrl_req != NULL) { - gs_free_req(gadget->ep0, dev->dev_ctrl_req); - dev->dev_ctrl_req = NULL; - } - gs_reset_config(dev); - gs_free_ports(dev); - kfree(dev); - set_gadget_data(gadget, NULL); - } + /* config description */ + status = usb_string_id(cdev); + if (status < 0) + goto fail; + strings_dev[STRING_DESCRIPTION_IDX].id = status; - pr_info("gs_unbind: %s %s unbound\n", GS_LONG_NAME, - GS_VERSION_STR); -} - -/* - * gs_bind - * - * Called on module load. Allocates and initializes the device - * structure and a control request. - */ -static int __init gs_bind(struct usb_gadget *gadget) -{ - int ret; - struct usb_ep *ep; - struct gs_dev *dev; - int gcnum; - - /* Some controllers can't support CDC ACM: - * - sh doesn't support multiple interfaces or configs; - * - sa1100 doesn't have a third interrupt endpoint - */ - if (gadget_is_sh(gadget) || gadget_is_sa1100(gadget)) - use_acm = 0; + serial_config_driver.iConfiguration = status; + /* set up other descriptors */ gcnum = usb_gadget_controller_number(gadget); if (gcnum >= 0) - gs_device_desc.bcdDevice = - cpu_to_le16(GS_VERSION_NUM | gcnum); + device_desc.bcdDevice = cpu_to_le16(GS_VERSION_NUM | gcnum); else { + /* this is so simple (for now, no altsettings) that it + * SHOULD NOT have problems with bulk-capable hardware. + * so warn about unrcognized controllers -- don't panic. + * + * things like configuration and altsetting numbering + * can need hardware-specific attention though. + */ pr_warning("gs_bind: controller '%s' not recognized\n", gadget->name); - /* unrecognized, but safe unless bulk is REALLY quirky */ - gs_device_desc.bcdDevice = - __constant_cpu_to_le16(GS_VERSION_NUM|0x0099); - } - - dev = kzalloc(sizeof(struct gs_dev), GFP_KERNEL); - if (dev == NULL) - return -ENOMEM; - - usb_ep_autoconfig_reset(gadget); - - ep = usb_ep_autoconfig(gadget, &gs_fullspeed_in_desc); - if (!ep) - goto autoconf_fail; - dev->dev_in_ep = ep; - ep->driver_data = dev; /* claim the endpoint */ - - ep = usb_ep_autoconfig(gadget, &gs_fullspeed_out_desc); - if (!ep) - goto autoconf_fail; - dev->dev_out_ep = ep; - ep->driver_data = dev; /* claim the endpoint */ - - if (use_acm) { - ep = usb_ep_autoconfig(gadget, &gs_fullspeed_notify_desc); - if (!ep) { - pr_err("gs_bind: cannot run ACM on %s\n", gadget->name); - goto autoconf_fail; - } - gs_device_desc.idProduct = __constant_cpu_to_le16( - GS_CDC_PRODUCT_ID), - dev->dev_notify_ep = ep; - ep->driver_data = dev; /* claim the endpoint */ - } - - gs_device_desc.bDeviceClass = use_acm - ? USB_CLASS_COMM : USB_CLASS_VENDOR_SPEC; - gs_device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; - - if (gadget_is_dualspeed(gadget)) { - gs_qualifier_desc.bDeviceClass = use_acm - ? USB_CLASS_COMM : USB_CLASS_VENDOR_SPEC; - /* assume ep0 uses the same packet size for both speeds */ - gs_qualifier_desc.bMaxPacketSize0 = - gs_device_desc.bMaxPacketSize0; - /* assume endpoints are dual-speed */ - gs_highspeed_notify_desc.bEndpointAddress = - gs_fullspeed_notify_desc.bEndpointAddress; - gs_highspeed_in_desc.bEndpointAddress = - gs_fullspeed_in_desc.bEndpointAddress; - gs_highspeed_out_desc.bEndpointAddress = - gs_fullspeed_out_desc.bEndpointAddress; - } - - usb_gadget_set_selfpowered(gadget); - - if (gadget_is_otg(gadget)) { - gs_otg_descriptor.bmAttributes |= USB_OTG_HNP, - gs_bulk_config_desc.bmAttributes |= USB_CONFIG_ATT_WAKEUP; - gs_acm_config_desc.bmAttributes |= USB_CONFIG_ATT_WAKEUP; + device_desc.bcdDevice = + __constant_cpu_to_le16(GS_VERSION_NUM | 0x0099); } - gs_device = dev; - - snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s", - init_utsname()->sysname, init_utsname()->release, - gadget->name); - - dev->dev_gadget = gadget; - spin_lock_init(&dev->dev_lock); - INIT_LIST_HEAD(&dev->dev_req_list); - set_gadget_data(gadget, dev); - - if ((ret=gs_alloc_ports(dev, GFP_KERNEL)) != 0) { - pr_err("gs_bind: cannot allocate ports\n"); - gs_unbind(gadget); - return ret; + if (gadget_is_otg(cdev->gadget)) { + serial_config_driver.descriptors = otg_desc; + serial_config_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - /* preallocate control response and buffer */ - dev->dev_ctrl_req = gs_alloc_req(gadget->ep0, GS_MAX_DESC_LEN, - GFP_KERNEL); - if (dev->dev_ctrl_req == NULL) { - gs_unbind(gadget); - return -ENOMEM; - } - gadget->ep0->driver_data = dev; + /* register our configuration */ + status = usb_add_config(cdev, &serial_config_driver); + if (status < 0) + goto fail; - pr_info("gs_bind: %s %s bound\n", - GS_LONG_NAME, GS_VERSION_STR); + INFO(cdev, "%s\n", GS_VERSION_NAME); return 0; -autoconf_fail: - kfree(dev); - pr_err("gs_bind: cannot autoconfigure on %s\n", gadget->name); - return -ENODEV; -} - -static int gs_setup_standard(struct usb_gadget *gadget, - const struct usb_ctrlrequest *ctrl) -{ - int ret = -EOPNOTSUPP; - struct gs_dev *dev = get_gadget_data(gadget); - struct usb_request *req = dev->dev_ctrl_req; - u16 wIndex = le16_to_cpu(ctrl->wIndex); - u16 wValue = le16_to_cpu(ctrl->wValue); - u16 wLength = le16_to_cpu(ctrl->wLength); - - switch (ctrl->bRequest) { - case USB_REQ_GET_DESCRIPTOR: - if (ctrl->bRequestType != USB_DIR_IN) - break; - - switch (wValue >> 8) { - case USB_DT_DEVICE: - ret = min(wLength, - (u16)sizeof(struct usb_device_descriptor)); - memcpy(req->buf, &gs_device_desc, ret); - break; - - case USB_DT_DEVICE_QUALIFIER: - if (!gadget_is_dualspeed(gadget)) - break; - ret = min(wLength, - (u16)sizeof(struct usb_qualifier_descriptor)); - memcpy(req->buf, &gs_qualifier_desc, ret); - break; - - case USB_DT_OTHER_SPEED_CONFIG: - if (!gadget_is_dualspeed(gadget)) - break; - /* fall through */ - case USB_DT_CONFIG: - ret = gs_build_config_buf(req->buf, gadget, - wValue >> 8, wValue & 0xff, - gadget_is_otg(gadget)); - if (ret >= 0) - ret = min(wLength, (u16)ret); - break; - - case USB_DT_STRING: - /* wIndex == language code. */ - ret = usb_gadget_get_string(&gs_string_table, - wValue & 0xff, req->buf); - if (ret >= 0) - ret = min(wLength, (u16)ret); - break; - } - break; - - case USB_REQ_SET_CONFIGURATION: - if (ctrl->bRequestType != 0) - break; - spin_lock(&dev->dev_lock); - ret = gs_set_config(dev, wValue); - spin_unlock(&dev->dev_lock); - break; - - case USB_REQ_GET_CONFIGURATION: - if (ctrl->bRequestType != USB_DIR_IN) - break; - *(u8 *)req->buf = dev->dev_config; - ret = min(wLength, (u16)1); - break; - - case USB_REQ_SET_INTERFACE: - if (ctrl->bRequestType != USB_RECIP_INTERFACE - || !dev->dev_config - || wIndex >= GS_MAX_NUM_INTERFACES) - break; - if (dev->dev_config == GS_BULK_CONFIG_ID - && wIndex != GS_BULK_INTERFACE_ID) - break; - /* no alternate interface settings */ - if (wValue != 0) - break; - spin_lock(&dev->dev_lock); - /* PXA hardware partially handles SET_INTERFACE; - * we need to kluge around that interference. */ - if (gadget_is_pxa(gadget)) { - ret = gs_set_config(dev, use_acm ? - GS_ACM_CONFIG_ID : GS_BULK_CONFIG_ID); - goto set_interface_done; - } - if (dev->dev_config != GS_BULK_CONFIG_ID - && wIndex == GS_CONTROL_INTERFACE_ID) { - if (dev->dev_notify_ep) { - usb_ep_disable(dev->dev_notify_ep); - usb_ep_enable(dev->dev_notify_ep, dev->dev_notify_ep_desc); - } - } else { - usb_ep_disable(dev->dev_in_ep); - usb_ep_disable(dev->dev_out_ep); - usb_ep_enable(dev->dev_in_ep, dev->dev_in_ep_desc); - usb_ep_enable(dev->dev_out_ep, dev->dev_out_ep_desc); - } - ret = 0; -set_interface_done: - spin_unlock(&dev->dev_lock); - break; - - case USB_REQ_GET_INTERFACE: - if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE) - || dev->dev_config == GS_NO_CONFIG_ID) - break; - if (wIndex >= GS_MAX_NUM_INTERFACES - || (dev->dev_config == GS_BULK_CONFIG_ID - && wIndex != GS_BULK_INTERFACE_ID)) { - ret = -EDOM; - break; - } - /* no alternate interface settings */ - *(u8 *)req->buf = 0; - ret = min(wLength, (u16)1); - break; - - default: - pr_err("gs_setup: unknown standard request, type=%02x, " - "request=%02x, value=%04x, index=%04x, length=%d\n", - ctrl->bRequestType, ctrl->bRequest, - wValue, wIndex, wLength); - break; - } - - return ret; +fail: + gserial_cleanup(); + return status; } -static void gs_setup_complete_set_line_coding(struct usb_ep *ep, - struct usb_request *req) -{ - struct gs_dev *dev = ep->driver_data; - struct gs_port *port = dev->dev_port[0]; /* ACM only has one port */ - - switch (req->status) { - case 0: - /* normal completion */ - if (req->actual != sizeof(port->port_line_coding)) - usb_ep_set_halt(ep); - else if (port) { - struct usb_cdc_line_coding *value = req->buf; - - /* REVISIT: we currently just remember this data. - * If we change that, (a) validate it first, then - * (b) update whatever hardware needs updating. - */ - spin_lock(&port->port_lock); - port->port_line_coding = *value; - spin_unlock(&port->port_lock); - } - break; - - case -ESHUTDOWN: - /* disconnect */ - gs_free_req(ep, req); - break; - - default: - /* unexpected */ - break; - } - return; -} - -static int gs_setup_class(struct usb_gadget *gadget, - const struct usb_ctrlrequest *ctrl) -{ - int ret = -EOPNOTSUPP; - struct gs_dev *dev = get_gadget_data(gadget); - struct gs_port *port = dev->dev_port[0]; /* ACM only has one port */ - struct usb_request *req = dev->dev_ctrl_req; - u16 wIndex = le16_to_cpu(ctrl->wIndex); - u16 wValue = le16_to_cpu(ctrl->wValue); - u16 wLength = le16_to_cpu(ctrl->wLength); - - switch (ctrl->bRequest) { - case USB_CDC_REQ_SET_LINE_CODING: - if (wLength != sizeof(struct usb_cdc_line_coding)) - break; - ret = wLength; - req->complete = gs_setup_complete_set_line_coding; - break; - - case USB_CDC_REQ_GET_LINE_CODING: - ret = min_t(int, wLength, sizeof(struct usb_cdc_line_coding)); - if (port) { - spin_lock(&port->port_lock); - memcpy(req->buf, &port->port_line_coding, ret); - spin_unlock(&port->port_lock); - } - break; - - case USB_CDC_REQ_SET_CONTROL_LINE_STATE: - if (wLength != 0) - break; - ret = 0; - if (port) { - /* REVISIT: we currently just remember this data. - * If we change that, update whatever hardware needs - * updating. - */ - spin_lock(&port->port_lock); - port->port_handshake_bits = wValue; - spin_unlock(&port->port_lock); - } - break; - - default: - /* NOTE: strictly speaking, we should accept AT-commands - * using SEND_ENCPSULATED_COMMAND/GET_ENCAPSULATED_RESPONSE. - * But our call management descriptor says we don't handle - * call management, so we should be able to get by without - * handling those "required" commands (except by stalling). - */ - pr_err("gs_setup: unknown class request, " - "type=%02x, request=%02x, value=%04x, " - "index=%04x, length=%d\n", - ctrl->bRequestType, ctrl->bRequest, - wValue, wIndex, wLength); - break; - } - - return ret; -} - -/* - * gs_setup_complete - */ -static void gs_setup_complete(struct usb_ep *ep, struct usb_request *req) -{ - if (req->status || req->actual != req->length) { - pr_err("gs_setup_complete: status error, status=%d, " - "actual=%d, length=%d\n", - req->status, req->actual, req->length); - } -} - -/* - * gs_setup - * - * Implements all the control endpoint functionality that's not - * handled in hardware or the hardware driver. - * - * Returns the size of the data sent to the host, or a negative - * error number. - */ -static int gs_setup(struct usb_gadget *gadget, - const struct usb_ctrlrequest *ctrl) -{ - int ret = -EOPNOTSUPP; - struct gs_dev *dev = get_gadget_data(gadget); - struct usb_request *req = dev->dev_ctrl_req; - u16 wIndex = le16_to_cpu(ctrl->wIndex); - u16 wValue = le16_to_cpu(ctrl->wValue); - u16 wLength = le16_to_cpu(ctrl->wLength); - - req->complete = gs_setup_complete; - - switch (ctrl->bRequestType & USB_TYPE_MASK) { - case USB_TYPE_STANDARD: - ret = gs_setup_standard(gadget, ctrl); - break; - - case USB_TYPE_CLASS: - ret = gs_setup_class(gadget, ctrl); - break; - - default: - pr_err("gs_setup: unknown request, type=%02x, request=%02x, " - "value=%04x, index=%04x, length=%d\n", - ctrl->bRequestType, ctrl->bRequest, - wValue, wIndex, wLength); - break; - } - - /* respond with data transfer before status phase? */ - if (ret >= 0) { - req->length = ret; - req->zero = ret < wLength - && (ret % gadget->ep0->maxpacket) == 0; - ret = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC); - if (ret < 0) { - pr_err("gs_setup: cannot queue response, ret=%d\n", - ret); - req->status = 0; - gs_setup_complete(gadget->ep0, req); - } - } - - /* device either stalls (ret < 0) or reports success */ - return ret; -} - -/* - * gs_disconnect - * - * Called when the device is disconnected. Frees the closed - * ports and disconnects open ports. Open ports will be freed - * on close. Then reallocates the ports for the next connection. - */ -static void gs_disconnect(struct usb_gadget *gadget) -{ - unsigned long flags; - struct gs_dev *dev = get_gadget_data(gadget); - - spin_lock_irqsave(&dev->dev_lock, flags); - - gs_reset_config(dev); - - /* free closed ports and disconnect open ports */ - /* (open ports will be freed when closed) */ - gs_free_ports(dev); - - /* re-allocate ports for the next connection */ - if (gs_alloc_ports(dev, GFP_ATOMIC) != 0) - pr_err("gs_disconnect: cannot re-allocate ports\n"); - - spin_unlock_irqrestore(&dev->dev_lock, flags); - - pr_info("gs_disconnect: %s disconnected\n", GS_LONG_NAME); -} - -static struct usb_gadget_driver gs_gadget_driver = { -#ifdef CONFIG_USB_GADGET_DUALSPEED - .speed = USB_SPEED_HIGH, -#else - .speed = USB_SPEED_FULL, -#endif /* CONFIG_USB_GADGET_DUALSPEED */ - .function = GS_LONG_NAME, - .bind = gs_bind, - .unbind = gs_unbind, - .setup = gs_setup, - .disconnect = gs_disconnect, - .driver = { - .name = GS_SHORT_NAME, - .owner = THIS_MODULE, - }, +static struct usb_composite_driver gserial_driver = { + .name = "g_serial", + .dev = &device_desc, + .strings = dev_strings, + .bind = gs_bind, }; -/* - * gs_set_config - * - * Configures the device by enabling device specific - * optimizations, setting up the endpoints, allocating - * read and write requests and queuing read requests. - * - * The device lock must be held when calling this function. - */ -static int gs_set_config(struct gs_dev *dev, unsigned config) +static int __init init(void) { - int i; - int ret = 0; - struct usb_gadget *gadget = dev->dev_gadget; - struct usb_ep *ep; - struct usb_endpoint_descriptor *out, *in, *notify; - struct usb_request *req; - - if (dev == NULL) { - pr_err("gs_set_config: NULL device pointer\n"); - return 0; - } - - if (config == dev->dev_config) - return 0; - - gs_reset_config(dev); - - switch (config) { - case GS_NO_CONFIG_ID: - return 0; - case GS_BULK_CONFIG_ID: - if (use_acm) - return -EINVAL; - break; - case GS_ACM_CONFIG_ID: - if (!use_acm) - return -EINVAL; - break; - default: - return -EINVAL; - } - - in = choose_ep_desc(gadget, - &gs_highspeed_in_desc, - &gs_fullspeed_in_desc); - out = choose_ep_desc(gadget, - &gs_highspeed_out_desc, - &gs_fullspeed_out_desc); - notify = dev->dev_notify_ep - ? choose_ep_desc(gadget, - &gs_highspeed_notify_desc, - &gs_fullspeed_notify_desc) - : NULL; - - ret = usb_ep_enable(dev->dev_in_ep, in); - if (ret == 0) { - dev->dev_in_ep_desc = in; - } else { - pr_debug("%s: cannot enable %s %s, ret=%d\n", - __func__, "IN", dev->dev_in_ep->name, ret); - return ret; - } - - ret = usb_ep_enable(dev->dev_out_ep, out); - if (ret == 0) { - dev->dev_out_ep_desc = out; - } else { - pr_debug("%s: cannot enable %s %s, ret=%d\n", - __func__, "OUT", dev->dev_out_ep->name, ret); -fail0: - usb_ep_disable(dev->dev_in_ep); - return ret; - } - - if (notify) { - ret = usb_ep_enable(dev->dev_notify_ep, notify); - if (ret == 0) { - dev->dev_notify_ep_desc = notify; - } else { - pr_debug("%s: cannot enable %s %s, ret=%d\n", - __func__, "NOTIFY", - dev->dev_notify_ep->name, ret); - usb_ep_disable(dev->dev_out_ep); - goto fail0; - } - } - - dev->dev_config = config; - - /* allocate and queue read requests */ - ep = dev->dev_out_ep; - for (i=0; i<read_q_size && ret == 0; i++) { - if ((req=gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC))) { - req->complete = gs_read_complete; - if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) { - pr_err("gs_set_config: cannot queue read " - "request, ret=%d\n", ret); - } - } else { - pr_err("gs_set_config: cannot allocate " - "read requests\n"); - ret = -ENOMEM; - goto exit_reset_config; - } - } - - /* allocate write requests, and put on free list */ - ep = dev->dev_in_ep; - for (i=0; i<write_q_size; i++) { - req = gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC); - if (req) { - req->complete = gs_write_complete; - list_add(&req->list, &dev->dev_req_list); - } else { - pr_err("gs_set_config: cannot allocate " - "write requests\n"); - ret = -ENOMEM; - goto exit_reset_config; - } - } - - /* REVISIT the ACM mode should be able to actually *issue* some - * notifications, for at least serial state change events if - * not also for network connection; say so in bmCapabilities. + /* We *could* export two configs; that'd be much cleaner... + * but neither of these product IDs was defined that way. */ - - pr_info("gs_set_config: %s configured, %s speed %s config\n", - GS_LONG_NAME, - gadget->speed == USB_SPEED_HIGH ? "high" : "full", - config == GS_BULK_CONFIG_ID ? "BULK" : "CDC-ACM"); - - return 0; - -exit_reset_config: - gs_reset_config(dev); - return ret; -} - -/* - * gs_reset_config - * - * Mark the device as not configured, disable all endpoints, - * which forces completion of pending I/O and frees queued - * requests, and free the remaining write requests on the - * free list. - * - * The device lock must be held when calling this function. - */ -static void gs_reset_config(struct gs_dev *dev) -{ - struct usb_request *req; - - if (dev == NULL) { - pr_err("gs_reset_config: NULL device pointer\n"); - return; - } - - if (dev->dev_config == GS_NO_CONFIG_ID) - return; - - dev->dev_config = GS_NO_CONFIG_ID; - - /* free write requests on the free list */ - while(!list_empty(&dev->dev_req_list)) { - req = list_entry(dev->dev_req_list.next, - struct usb_request, list); - list_del(&req->list); - gs_free_req(dev->dev_in_ep, req); - } - - /* disable endpoints, forcing completion of pending i/o; */ - /* completion handlers free their requests in this case */ - if (dev->dev_notify_ep) - usb_ep_disable(dev->dev_notify_ep); - usb_ep_disable(dev->dev_in_ep); - usb_ep_disable(dev->dev_out_ep); -} - -/* - * gs_build_config_buf - * - * Builds the config descriptors in the given buffer and returns the - * length, or a negative error number. - */ -static int gs_build_config_buf(u8 *buf, struct usb_gadget *g, - u8 type, unsigned int index, int is_otg) -{ - int len; - int high_speed = 0; - const struct usb_config_descriptor *config_desc; - const struct usb_descriptor_header **function; - - if (index >= gs_device_desc.bNumConfigurations) - return -EINVAL; - - /* other speed switches high and full speed */ - if (gadget_is_dualspeed(g)) { - high_speed = (g->speed == USB_SPEED_HIGH); - if (type == USB_DT_OTHER_SPEED_CONFIG) - high_speed = !high_speed; - } - if (use_acm) { - config_desc = &gs_acm_config_desc; - function = high_speed - ? gs_acm_highspeed_function - : gs_acm_fullspeed_function; + serial_config_driver.label = "CDC ACM config"; + serial_config_driver.bConfigurationValue = 2; + device_desc.bDeviceClass = USB_CLASS_COMM; + device_desc.idProduct = + __constant_cpu_to_le16(GS_CDC_PRODUCT_ID); } else { - config_desc = &gs_bulk_config_desc; - function = high_speed - ? gs_bulk_highspeed_function - : gs_bulk_fullspeed_function; - } - - /* for now, don't advertise srp-only devices */ - if (!is_otg) - function++; - - len = usb_gadget_config_buf(config_desc, buf, GS_MAX_DESC_LEN, function); - if (len < 0) - return len; - - ((struct usb_config_descriptor *)buf)->bDescriptorType = type; - - return len; -} - -/* - * gs_alloc_req - * - * Allocate a usb_request and its buffer. Returns a pointer to the - * usb_request or NULL if there is an error. - */ -static struct usb_request * -gs_alloc_req(struct usb_ep *ep, unsigned int len, gfp_t kmalloc_flags) -{ - struct usb_request *req; - - if (ep == NULL) - return NULL; - - req = usb_ep_alloc_request(ep, kmalloc_flags); - - if (req != NULL) { - req->length = len; - req->buf = kmalloc(len, kmalloc_flags); - if (req->buf == NULL) { - usb_ep_free_request(ep, req); - return NULL; - } + serial_config_driver.label = "Generic Serial config"; + serial_config_driver.bConfigurationValue = 1; + device_desc.bDeviceClass = USB_CLASS_VENDOR_SPEC; + device_desc.idProduct = + __constant_cpu_to_le16(GS_PRODUCT_ID); } + strings_dev[STRING_DESCRIPTION_IDX].s = serial_config_driver.label; - return req; + return usb_composite_register(&gserial_driver); } +module_init(init); -/* - * gs_free_req - * - * Free a usb_request and its buffer. - */ -static void gs_free_req(struct usb_ep *ep, struct usb_request *req) +static void __exit cleanup(void) { - if (ep != NULL && req != NULL) { - kfree(req->buf); - usb_ep_free_request(ep, req); - } -} - -/* - * gs_alloc_ports - * - * Allocate all ports and set the gs_dev struct to point to them. - * Return 0 if successful, or a negative error number. - * - * The device lock is normally held when calling this function. - */ -static int gs_alloc_ports(struct gs_dev *dev, gfp_t kmalloc_flags) -{ - int i; - struct gs_port *port; - - if (dev == NULL) - return -EIO; - - for (i=0; i<GS_NUM_PORTS; i++) { - if ((port=kzalloc(sizeof(struct gs_port), kmalloc_flags)) == NULL) - return -ENOMEM; - - port->port_dev = dev; - port->port_num = i; - port->port_line_coding.dwDTERate = cpu_to_le32(GS_DEFAULT_DTE_RATE); - port->port_line_coding.bCharFormat = GS_DEFAULT_CHAR_FORMAT; - port->port_line_coding.bParityType = GS_DEFAULT_PARITY; - port->port_line_coding.bDataBits = GS_DEFAULT_DATA_BITS; - spin_lock_init(&port->port_lock); - init_waitqueue_head(&port->port_write_wait); - - dev->dev_port[i] = port; - } - - return 0; -} - -/* - * gs_free_ports - * - * Free all closed ports. Open ports are disconnected by - * freeing their write buffers, setting their device pointers - * and the pointers to them in the device to NULL. These - * ports will be freed when closed. - * - * The device lock is normally held when calling this function. - */ -static void gs_free_ports(struct gs_dev *dev) -{ - int i; - unsigned long flags; - struct gs_port *port; - - if (dev == NULL) - return; - - for (i=0; i<GS_NUM_PORTS; i++) { - if ((port=dev->dev_port[i]) != NULL) { - dev->dev_port[i] = NULL; - - spin_lock_irqsave(&port->port_lock, flags); - - if (port->port_write_buf != NULL) { - gs_buf_free(port->port_write_buf); - port->port_write_buf = NULL; - } - - if (port->port_open_count > 0 || port->port_in_use) { - port->port_dev = NULL; - wake_up_interruptible(&port->port_write_wait); - if (port->port_tty) { - tty_hangup(port->port_tty); - } - spin_unlock_irqrestore(&port->port_lock, flags); - } else { - spin_unlock_irqrestore(&port->port_lock, flags); - kfree(port); - } - - } - } -} - -/*-------------------------------------------------------------------------*/ - -/* Circular Buffer */ - -/* - * gs_buf_alloc - * - * Allocate a circular buffer and all associated memory. - */ -static struct gs_buf *gs_buf_alloc(unsigned int size, gfp_t kmalloc_flags) -{ - struct gs_buf *gb; - - if (size == 0) - return NULL; - - gb = kmalloc(sizeof(struct gs_buf), kmalloc_flags); - if (gb == NULL) - return NULL; - - gb->buf_buf = kmalloc(size, kmalloc_flags); - if (gb->buf_buf == NULL) { - kfree(gb); - return NULL; - } - - gb->buf_size = size; - gb->buf_get = gb->buf_put = gb->buf_buf; - - return gb; -} - -/* - * gs_buf_free - * - * Free the buffer and all associated memory. - */ -static void gs_buf_free(struct gs_buf *gb) -{ - if (gb) { - kfree(gb->buf_buf); - kfree(gb); - } -} - -/* - * gs_buf_clear - * - * Clear out all data in the circular buffer. - */ -static void gs_buf_clear(struct gs_buf *gb) -{ - if (gb != NULL) - gb->buf_get = gb->buf_put; - /* equivalent to a get of all data available */ -} - -/* - * gs_buf_data_avail - * - * Return the number of bytes of data available in the circular - * buffer. - */ -static unsigned int gs_buf_data_avail(struct gs_buf *gb) -{ - if (gb != NULL) - return (gb->buf_size + gb->buf_put - gb->buf_get) % gb->buf_size; - else - return 0; -} - -/* - * gs_buf_space_avail - * - * Return the number of bytes of space available in the circular - * buffer. - */ -static unsigned int gs_buf_space_avail(struct gs_buf *gb) -{ - if (gb != NULL) - return (gb->buf_size + gb->buf_get - gb->buf_put - 1) % gb->buf_size; - else - return 0; -} - -/* - * gs_buf_put - * - * Copy data data from a user buffer and put it into the circular buffer. - * Restrict to the amount of space available. - * - * Return the number of bytes copied. - */ -static unsigned int -gs_buf_put(struct gs_buf *gb, const char *buf, unsigned int count) -{ - unsigned int len; - - if (gb == NULL) - return 0; - - len = gs_buf_space_avail(gb); - if (count > len) - count = len; - - if (count == 0) - return 0; - - len = gb->buf_buf + gb->buf_size - gb->buf_put; - if (count > len) { - memcpy(gb->buf_put, buf, len); - memcpy(gb->buf_buf, buf+len, count - len); - gb->buf_put = gb->buf_buf + count - len; - } else { - memcpy(gb->buf_put, buf, count); - if (count < len) - gb->buf_put += count; - else /* count == len */ - gb->buf_put = gb->buf_buf; - } - - return count; -} - -/* - * gs_buf_get - * - * Get data from the circular buffer and copy to the given buffer. - * Restrict to the amount of data available. - * - * Return the number of bytes copied. - */ -static unsigned int -gs_buf_get(struct gs_buf *gb, char *buf, unsigned int count) -{ - unsigned int len; - - if (gb == NULL) - return 0; - - len = gs_buf_data_avail(gb); - if (count > len) - count = len; - - if (count == 0) - return 0; - - len = gb->buf_buf + gb->buf_size - gb->buf_get; - if (count > len) { - memcpy(buf, gb->buf_get, len); - memcpy(buf+len, gb->buf_buf, count - len); - gb->buf_get = gb->buf_buf + count - len; - } else { - memcpy(buf, gb->buf_get, count); - if (count < len) - gb->buf_get += count; - else /* count == len */ - gb->buf_get = gb->buf_buf; - } - - return count; -} - -/*-------------------------------------------------------------------------*/ - -static struct tty_driver *gs_tty_driver; - -/* - * gs_module_init - * - * Register as a USB gadget driver and a tty driver. - */ -static int __init gs_module_init(void) -{ - int i; - int retval; - - retval = usb_gadget_register_driver(&gs_gadget_driver); - if (retval) { - pr_err("gs_module_init: cannot register gadget driver, " - "ret=%d\n", retval); - return retval; - } - - gs_tty_driver = alloc_tty_driver(GS_NUM_PORTS); - if (!gs_tty_driver) - return -ENOMEM; - gs_tty_driver->owner = THIS_MODULE; - gs_tty_driver->driver_name = GS_SHORT_NAME; - gs_tty_driver->name = "ttygs"; - gs_tty_driver->major = GS_MAJOR; - gs_tty_driver->minor_start = GS_MINOR_START; - gs_tty_driver->type = TTY_DRIVER_TYPE_SERIAL; - gs_tty_driver->subtype = SERIAL_TYPE_NORMAL; - gs_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; - gs_tty_driver->init_termios = tty_std_termios; - /* must match GS_DEFAULT_DTE_RATE and friends */ - gs_tty_driver->init_termios.c_cflag = - B9600 | CS8 | CREAD | HUPCL | CLOCAL; - gs_tty_driver->init_termios.c_ispeed = GS_DEFAULT_DTE_RATE; - gs_tty_driver->init_termios.c_ospeed = GS_DEFAULT_DTE_RATE; - tty_set_operations(gs_tty_driver, &gs_tty_ops); - - for (i = 0; i < GS_NUM_PORTS; i++) - mutex_init(&gs_open_close_lock[i]); - - retval = tty_register_driver(gs_tty_driver); - if (retval) { - usb_gadget_unregister_driver(&gs_gadget_driver); - put_tty_driver(gs_tty_driver); - pr_err("gs_module_init: cannot register tty driver, " - "ret=%d\n", retval); - return retval; - } - - pr_info("gs_module_init: %s %s loaded\n", - GS_LONG_NAME, GS_VERSION_STR); - return 0; -} -module_init(gs_module_init); - -/* - * gs_module_exit - * - * Unregister as a tty driver and a USB gadget driver. - */ -static void __exit gs_module_exit(void) -{ - tty_unregister_driver(gs_tty_driver); - put_tty_driver(gs_tty_driver); - usb_gadget_unregister_driver(&gs_gadget_driver); - - pr_info("gs_module_exit: %s %s unloaded\n", - GS_LONG_NAME, GS_VERSION_STR); + usb_composite_unregister(&gserial_driver); + gserial_cleanup(); } -module_exit(gs_module_exit); +module_exit(cleanup); diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c new file mode 100644 index 000000000000..72d548de3807 --- /dev/null +++ b/drivers/usb/gadget/u_serial.c @@ -0,0 +1,1270 @@ +/* + * u_serial.c - utilities for USB gadget "serial port"/TTY support + * + * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com) + * Copyright (C) 2008 David Brownell + * + * This code also borrows from usbserial.c, which is + * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com) + * Copyright (C) 2000 Peter Berger (pberger@brimson.com) + * Copyright (C) 2000 Al Borchers (alborchers@steinerpoint.com) + * + * This software is distributed under the terms of the GNU General + * Public License ("GPL") as published by the Free Software Foundation, + * either version 2 of that License or (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/tty.h> +#include <linux/tty_flip.h> + +#include "u_serial.h" + + +/* + * This module encapsulates the TTY layer glue needed to provide basic + * "serial port" functionality through the USB gadget stack. Each such + * port is exposed through a /dev/ttyGS* node. + * + * After initialization (gserial_setup), these TTY port devices stay + * available until they are removed (gserial_cleanup). Each one may be + * connected to a USB function (gserial_connect), or disconnected (with + * gserial_disconnect) when the USB host issues a config change event. + * Data can only flow when the port is connected to the host. + * + * A given TTY port can be made available in multiple configurations. + * For example, each one might expose a ttyGS0 node which provides a + * login application. In one case that might use CDC ACM interface 0, + * while another configuration might use interface 3 for that. The + * work to handle that (including descriptor management) is not part + * of this module. + * + * Configurations may expose more than one TTY port. For example, if + * ttyGS0 provides login service, then ttyGS1 might provide dialer access + * for a telephone or fax link. And ttyGS2 might be something that just + * needs a simple byte stream interface for some messaging protocol that + * is managed in userspace ... OBEX, PTP, and MTP have been mentioned. + */ + +/* + * gserial is the lifecycle interface, used by USB functions + * gs_port is the I/O nexus, used by the tty driver + * tty_struct links to the tty/filesystem framework + * + * gserial <---> gs_port ... links will be null when the USB link is + * inactive; managed by gserial_{connect,disconnect}(). + * gserial->ioport == usb_ep->driver_data ... gs_port + * gs_port->port_usb ... gserial + * + * gs_port <---> tty_struct ... links will be null when the TTY file + * isn't opened; managed by gs_open()/gs_close() + * gserial->port_tty ... tty_struct + * tty_struct->driver_data ... gserial + */ + +/* RX and TX queues can buffer QUEUE_SIZE packets before they hit the + * next layer of buffering. For TX that's a circular buffer; for RX + * consider it a NOP. A third layer is provided by the TTY code. + */ +#define QUEUE_SIZE 16 +#define WRITE_BUF_SIZE 8192 /* TX only */ + +/* circular buffer */ +struct gs_buf { + unsigned buf_size; + char *buf_buf; + char *buf_get; + char *buf_put; +}; + +/* + * The port structure holds info for each port, one for each minor number + * (and thus for each /dev/ node). + */ +struct gs_port { + spinlock_t port_lock; + + struct gserial *port_usb; + struct tty_struct *port_tty; + + unsigned open_count; + bool openclose; /* open/close in progress */ + u8 port_num; + + wait_queue_head_t close_wait; /* wait for last close */ + + struct list_head read_pool; + struct tasklet_struct push; + + struct list_head write_pool; + struct gs_buf port_write_buf; + wait_queue_head_t drain_wait; /* wait while writes drain */ + + /* REVISIT this state ... */ + struct usb_cdc_line_coding port_line_coding; /* 8-N-1 etc */ +}; + +/* increase N_PORTS if you need more */ +#define N_PORTS 4 +static struct portmaster { + struct mutex lock; /* protect open/close */ + struct gs_port *port; +} ports[N_PORTS]; +static unsigned n_ports; + +#define GS_CLOSE_TIMEOUT 15 /* seconds */ + + + +#ifdef VERBOSE_DEBUG +#define pr_vdebug(fmt, arg...) \ + pr_debug(fmt, ##arg) +#else +#define pr_vdebug(fmt, arg...) \ + ({ if (0) pr_debug(fmt, ##arg); }) +#endif + +/*-------------------------------------------------------------------------*/ + +/* Circular Buffer */ + +/* + * gs_buf_alloc + * + * Allocate a circular buffer and all associated memory. + */ +static int gs_buf_alloc(struct gs_buf *gb, unsigned size) +{ + gb->buf_buf = kmalloc(size, GFP_KERNEL); + if (gb->buf_buf == NULL) + return -ENOMEM; + + gb->buf_size = size; + gb->buf_get = gb->buf_put = gb->buf_buf; + + return 0; +} + +/* + * gs_buf_free + * + * Free the buffer and all associated memory. + */ +static void gs_buf_free(struct gs_buf *gb) +{ + kfree(gb->buf_buf); + gb->buf_buf = NULL; +} + +/* + * gs_buf_clear + * + * Clear out all data in the circular buffer. + */ +static void gs_buf_clear(struct gs_buf *gb) +{ + gb->buf_get = gb->buf_put; + /* equivalent to a get of all data available */ +} + +/* + * gs_buf_data_avail + * + * Return the number of bytes of data available in the circular + * buffer. + */ +static unsigned gs_buf_data_avail(struct gs_buf *gb) +{ + return (gb->buf_size + gb->buf_put - gb->buf_get) % gb->buf_size; +} + +/* + * gs_buf_space_avail + * + * Return the number of bytes of space available in the circular + * buffer. + */ +static unsigned gs_buf_space_avail(struct gs_buf *gb) +{ + return (gb->buf_size + gb->buf_get - gb->buf_put - 1) % gb->buf_size; +} + +/* + * gs_buf_put + * + * Copy data data from a user buffer and put it into the circular buffer. + * Restrict to the amount of space available. + * + * Return the number of bytes copied. + */ +static unsigned +gs_buf_put(struct gs_buf *gb, const char *buf, unsigned count) +{ + unsigned len; + + len = gs_buf_space_avail(gb); + if (count > len) + count = len; + + if (count == 0) + return 0; + + len = gb->buf_buf + gb->buf_size - gb->buf_put; + if (count > len) { + memcpy(gb->buf_put, buf, len); + memcpy(gb->buf_buf, buf+len, count - len); + gb->buf_put = gb->buf_buf + count - len; + } else { + memcpy(gb->buf_put, buf, count); + if (count < len) + gb->buf_put += count; + else /* count == len */ + gb->buf_put = gb->buf_buf; + } + + return count; +} + +/* + * gs_buf_get + * + * Get data from the circular buffer and copy to the given buffer. + * Restrict to the amount of data available. + * + * Return the number of bytes copied. + */ +static unsigned +gs_buf_get(struct gs_buf *gb, char *buf, unsigned count) +{ + unsigned len; + + len = gs_buf_data_avail(gb); + if (count > len) + count = len; + + if (count == 0) + return 0; + + len = gb->buf_buf + gb->buf_size - gb->buf_get; + if (count > len) { + memcpy(buf, gb->buf_get, len); + memcpy(buf+len, gb->buf_buf, count - len); + gb->buf_get = gb->buf_buf + count - len; + } else { + memcpy(buf, gb->buf_get, count); + if (count < len) + gb->buf_get += count; + else /* count == len */ + gb->buf_get = gb->buf_buf; + } + + return count; +} + +/*-------------------------------------------------------------------------*/ + +/* I/O glue between TTY (upper) and USB function (lower) driver layers */ + +/* + * gs_alloc_req + * + * Allocate a usb_request and its buffer. Returns a pointer to the + * usb_request or NULL if there is an error. + */ +static struct usb_request * +gs_alloc_req(struct usb_ep *ep, unsigned len, gfp_t kmalloc_flags) +{ + struct usb_request *req; + + req = usb_ep_alloc_request(ep, kmalloc_flags); + + if (req != NULL) { + req->length = len; + req->buf = kmalloc(len, kmalloc_flags); + if (req->buf == NULL) { + usb_ep_free_request(ep, req); + return NULL; + } + } + + return req; +} + +/* + * gs_free_req + * + * Free a usb_request and its buffer. + */ +static void gs_free_req(struct usb_ep *ep, struct usb_request *req) +{ + kfree(req->buf); + usb_ep_free_request(ep, req); +} + +/* + * gs_send_packet + * + * If there is data to send, a packet is built in the given + * buffer and the size is returned. If there is no data to + * send, 0 is returned. + * + * Called with port_lock held. + */ +static unsigned +gs_send_packet(struct gs_port *port, char *packet, unsigned size) +{ + unsigned len; + + len = gs_buf_data_avail(&port->port_write_buf); + if (len < size) + size = len; + if (size != 0) + size = gs_buf_get(&port->port_write_buf, packet, size); + return size; +} + +/* + * gs_start_tx + * + * This function finds available write requests, calls + * gs_send_packet to fill these packets with data, and + * continues until either there are no more write requests + * available or no more data to send. This function is + * run whenever data arrives or write requests are available. + * + * Context: caller owns port_lock; port_usb is non-null. + */ +static int gs_start_tx(struct gs_port *port) +/* +__releases(&port->port_lock) +__acquires(&port->port_lock) +*/ +{ + struct list_head *pool = &port->write_pool; + struct usb_ep *in = port->port_usb->in; + int status = 0; + bool do_tty_wake = false; + + while (!list_empty(pool)) { + struct usb_request *req; + int len; + + req = list_entry(pool->next, struct usb_request, list); + len = gs_send_packet(port, req->buf, in->maxpacket); + if (len == 0) { + wake_up_interruptible(&port->drain_wait); + break; + } + do_tty_wake = true; + + req->length = len; + list_del(&req->list); + +#ifdef VERBOSE_DEBUG + pr_debug("%s: %s, len=%d, 0x%02x 0x%02x 0x%02x ...\n", + __func__, in->name, len, *((u8 *)req->buf), + *((u8 *)req->buf+1), *((u8 *)req->buf+2)); +#endif + + /* Drop lock while we call out of driver; completions + * could be issued while we do so. Disconnection may + * happen too; maybe immediately before we queue this! + * + * NOTE that we may keep sending data for a while after + * the TTY closed (dev->ioport->port_tty is NULL). + */ + spin_unlock(&port->port_lock); + status = usb_ep_queue(in, req, GFP_ATOMIC); + spin_lock(&port->port_lock); + + if (status) { + pr_debug("%s: %s %s err %d\n", + __func__, "queue", in->name, status); + list_add(&req->list, pool); + break; + } + + /* abort immediately after disconnect */ + if (!port->port_usb) + break; + } + + if (do_tty_wake && port->port_tty) + tty_wakeup(port->port_tty); + return status; +} + +static void gs_rx_push(unsigned long _port) +{ + struct gs_port *port = (void *)_port; + struct tty_struct *tty = port->port_tty; + + /* With low_latency, tty_flip_buffer_push() doesn't put its + * real work through a workqueue, so the ldisc has a better + * chance to keep up with peak USB data rates. + */ + if (tty) { + tty_flip_buffer_push(tty); + wake_up_interruptible(&tty->read_wait); + } +} + +/* + * gs_recv_packet + * + * Called for each USB packet received. Reads the packet + * header and stuffs the data in the appropriate tty buffer. + * Returns 0 if successful, or a negative error number. + * + * Called during USB completion routine, on interrupt time. + * With port_lock. + */ +static int gs_recv_packet(struct gs_port *port, char *packet, unsigned size) +{ + unsigned len; + struct tty_struct *tty; + + /* I/O completions can continue for a while after close(), until the + * request queue empties. Just discard any data we receive, until + * something reopens this TTY ... as if there were no HW flow control. + */ + tty = port->port_tty; + if (tty == NULL) { + pr_vdebug("%s: ttyGS%d, after close\n", + __func__, port->port_num); + return -EIO; + } + + len = tty_insert_flip_string(tty, packet, size); + if (len > 0) + tasklet_schedule(&port->push); + if (len < size) + pr_debug("%s: ttyGS%d, drop %d bytes\n", + __func__, port->port_num, size - len); + return 0; +} + +/* + * Context: caller owns port_lock, and port_usb is set + */ +static unsigned gs_start_rx(struct gs_port *port) +/* +__releases(&port->port_lock) +__acquires(&port->port_lock) +*/ +{ + struct list_head *pool = &port->read_pool; + struct usb_ep *out = port->port_usb->out; + unsigned started = 0; + + while (!list_empty(pool)) { + struct usb_request *req; + int status; + struct tty_struct *tty; + + /* no more rx if closed or throttled */ + tty = port->port_tty; + if (!tty || test_bit(TTY_THROTTLED, &tty->flags)) + break; + + req = list_entry(pool->next, struct usb_request, list); + list_del(&req->list); + req->length = out->maxpacket; + + /* drop lock while we call out; the controller driver + * may need to call us back (e.g. for disconnect) + */ + spin_unlock(&port->port_lock); + status = usb_ep_queue(out, req, GFP_ATOMIC); + spin_lock(&port->port_lock); + + if (status) { + pr_debug("%s: %s %s err %d\n", + __func__, "queue", out->name, status); + list_add(&req->list, pool); + break; + } + started++; + + /* abort immediately after disconnect */ + if (!port->port_usb) + break; + } + return started; +} + +static void gs_read_complete(struct usb_ep *ep, struct usb_request *req) +{ + int status; + struct gs_port *port = ep->driver_data; + + spin_lock(&port->port_lock); + list_add(&req->list, &port->read_pool); + + switch (req->status) { + case 0: + /* normal completion */ + status = gs_recv_packet(port, req->buf, req->actual); + if (status && status != -EIO) + pr_debug("%s: %s %s err %d\n", + __func__, "recv", ep->name, status); + gs_start_rx(port); + break; + + case -ESHUTDOWN: + /* disconnect */ + pr_vdebug("%s: %s shutdown\n", __func__, ep->name); + break; + + default: + /* presumably a transient fault */ + pr_warning("%s: unexpected %s status %d\n", + __func__, ep->name, req->status); + gs_start_rx(port); + break; + } + spin_unlock(&port->port_lock); +} + +static void gs_write_complete(struct usb_ep *ep, struct usb_request *req) +{ + struct gs_port *port = ep->driver_data; + + spin_lock(&port->port_lock); + list_add(&req->list, &port->write_pool); + + switch (req->status) { + default: + /* presumably a transient fault */ + pr_warning("%s: unexpected %s status %d\n", + __func__, ep->name, req->status); + /* FALL THROUGH */ + case 0: + /* normal completion */ + gs_start_tx(port); + break; + + case -ESHUTDOWN: + /* disconnect */ + pr_vdebug("%s: %s shutdown\n", __func__, ep->name); + break; + } + + spin_unlock(&port->port_lock); +} + +static void gs_free_requests(struct usb_ep *ep, struct list_head *head) +{ + struct usb_request *req; + + while (!list_empty(head)) { + req = list_entry(head->next, struct usb_request, list); + list_del(&req->list); + gs_free_req(ep, req); + } +} + +static int gs_alloc_requests(struct usb_ep *ep, struct list_head *head, + void (*fn)(struct usb_ep *, struct usb_request *)) +{ + int i; + struct usb_request *req; + + /* Pre-allocate up to QUEUE_SIZE transfers, but if we can't + * do quite that many this time, don't fail ... we just won't + * be as speedy as we might otherwise be. + */ + for (i = 0; i < QUEUE_SIZE; i++) { + req = gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC); + if (!req) + return list_empty(head) ? -ENOMEM : 0; + req->complete = fn; + list_add_tail(&req->list, head); + } + return 0; +} + +/** + * gs_start_io - start USB I/O streams + * @dev: encapsulates endpoints to use + * Context: holding port_lock; port_tty and port_usb are non-null + * + * We only start I/O when something is connected to both sides of + * this port. If nothing is listening on the host side, we may + * be pointlessly filling up our TX buffers and FIFO. + */ +static int gs_start_io(struct gs_port *port) +{ + struct list_head *head = &port->read_pool; + struct usb_ep *ep = port->port_usb->out; + int status; + unsigned started; + + /* Allocate RX and TX I/O buffers. We can't easily do this much + * earlier (with GFP_KERNEL) because the requests are coupled to + * endpoints, as are the packet sizes we'll be using. Different + * configurations may use different endpoints with a given port; + * and high speed vs full speed changes packet sizes too. + */ + status = gs_alloc_requests(ep, head, gs_read_complete); + if (status) + return status; + + status = gs_alloc_requests(port->port_usb->in, &port->write_pool, + gs_write_complete); + if (status) { + gs_free_requests(ep, head); + return status; + } + + /* queue read requests */ + started = gs_start_rx(port); + + /* unblock any pending writes into our circular buffer */ + if (started) { + tty_wakeup(port->port_tty); + } else { + gs_free_requests(ep, head); + gs_free_requests(port->port_usb->in, &port->write_pool); + } + + return started ? 0 : status; +} + +/*-------------------------------------------------------------------------*/ + +/* TTY Driver */ + +/* + * gs_open sets up the link between a gs_port and its associated TTY. + * That link is broken *only* by TTY close(), and all driver methods + * know that. + */ +static int gs_open(struct tty_struct *tty, struct file *file) +{ + int port_num = tty->index; + struct gs_port *port; + int status; + + if (port_num < 0 || port_num >= n_ports) + return -ENXIO; + + do { + mutex_lock(&ports[port_num].lock); + port = ports[port_num].port; + if (!port) + status = -ENODEV; + else { + spin_lock_irq(&port->port_lock); + + /* already open? Great. */ + if (port->open_count) { + status = 0; + port->open_count++; + + /* currently opening/closing? wait ... */ + } else if (port->openclose) { + status = -EBUSY; + + /* ... else we do the work */ + } else { + status = -EAGAIN; + port->openclose = true; + } + spin_unlock_irq(&port->port_lock); + } + mutex_unlock(&ports[port_num].lock); + + switch (status) { + default: + /* fully handled */ + return status; + case -EAGAIN: + /* must do the work */ + break; + case -EBUSY: + /* wait for EAGAIN task to finish */ + msleep(1); + /* REVISIT could have a waitchannel here, if + * concurrent open performance is important + */ + break; + } + } while (status != -EAGAIN); + + /* Do the "real open" */ + spin_lock_irq(&port->port_lock); + + /* allocate circular buffer on first open */ + if (port->port_write_buf.buf_buf == NULL) { + + spin_unlock_irq(&port->port_lock); + status = gs_buf_alloc(&port->port_write_buf, WRITE_BUF_SIZE); + spin_lock_irq(&port->port_lock); + + if (status) { + pr_debug("gs_open: ttyGS%d (%p,%p) no buffer\n", + port->port_num, tty, file); + port->openclose = false; + goto exit_unlock_port; + } + } + + /* REVISIT if REMOVED (ports[].port NULL), abort the open + * to let rmmod work faster (but this way isn't wrong). + */ + + /* REVISIT maybe wait for "carrier detect" */ + + tty->driver_data = port; + port->port_tty = tty; + + port->open_count = 1; + port->openclose = false; + + /* low_latency means ldiscs work in tasklet context, without + * needing a workqueue schedule ... easier to keep up. + */ + tty->low_latency = 1; + + /* if connected, start the I/O stream */ + if (port->port_usb) { + pr_debug("gs_open: start ttyGS%d\n", port->port_num); + gs_start_io(port); + + /* REVISIT for ACM, issue "network connected" event */ + } + + pr_debug("gs_open: ttyGS%d (%p,%p)\n", port->port_num, tty, file); + + status = 0; + +exit_unlock_port: + spin_unlock_irq(&port->port_lock); + return status; +} + +static int gs_writes_finished(struct gs_port *p) +{ + int cond; + + /* return true on disconnect or empty buffer */ + spin_lock_irq(&p->port_lock); + cond = (p->port_usb == NULL) || !gs_buf_data_avail(&p->port_write_buf); + spin_unlock_irq(&p->port_lock); + + return cond; +} + +static void gs_close(struct tty_struct *tty, struct file *file) +{ + struct gs_port *port = tty->driver_data; + + spin_lock_irq(&port->port_lock); + + if (port->open_count != 1) { + if (port->open_count == 0) + WARN_ON(1); + else + --port->open_count; + goto exit; + } + + pr_debug("gs_close: ttyGS%d (%p,%p) ...\n", port->port_num, tty, file); + + /* mark port as closing but in use; we can drop port lock + * and sleep if necessary + */ + port->openclose = true; + port->open_count = 0; + + if (port->port_usb) + /* REVISIT for ACM, issue "network disconnected" event */; + + /* wait for circular write buffer to drain, disconnect, or at + * most GS_CLOSE_TIMEOUT seconds; then discard the rest + */ + if (gs_buf_data_avail(&port->port_write_buf) > 0 + && port->port_usb) { + spin_unlock_irq(&port->port_lock); + wait_event_interruptible_timeout(port->drain_wait, + gs_writes_finished(port), + GS_CLOSE_TIMEOUT * HZ); + spin_lock_irq(&port->port_lock); + } + + /* Iff we're disconnected, there can be no I/O in flight so it's + * ok to free the circular buffer; else just scrub it. And don't + * let the push tasklet fire again until we're re-opened. + */ + if (port->port_usb == NULL) + gs_buf_free(&port->port_write_buf); + else + gs_buf_clear(&port->port_write_buf); + + tasklet_kill(&port->push); + + tty->driver_data = NULL; + port->port_tty = NULL; + + port->openclose = false; + + pr_debug("gs_close: ttyGS%d (%p,%p) done!\n", + port->port_num, tty, file); + + wake_up_interruptible(&port->close_wait); +exit: + spin_unlock_irq(&port->port_lock); +} + +static int gs_write(struct tty_struct *tty, const unsigned char *buf, int count) +{ + struct gs_port *port = tty->driver_data; + unsigned long flags; + int status; + + pr_vdebug("gs_write: ttyGS%d (%p) writing %d bytes\n", + port->port_num, tty, count); + + spin_lock_irqsave(&port->port_lock, flags); + if (count) + count = gs_buf_put(&port->port_write_buf, buf, count); + /* treat count == 0 as flush_chars() */ + if (port->port_usb) + status = gs_start_tx(port); + spin_unlock_irqrestore(&port->port_lock, flags); + + return count; +} + +static int gs_put_char(struct tty_struct *tty, unsigned char ch) +{ + struct gs_port *port = tty->driver_data; + unsigned long flags; + int status; + + pr_vdebug("gs_put_char: (%d,%p) char=0x%x, called from %p\n", + port->port_num, tty, ch, __builtin_return_address(0)); + + spin_lock_irqsave(&port->port_lock, flags); + status = gs_buf_put(&port->port_write_buf, &ch, 1); + spin_unlock_irqrestore(&port->port_lock, flags); + + return status; +} + +static void gs_flush_chars(struct tty_struct *tty) +{ + struct gs_port *port = tty->driver_data; + unsigned long flags; + + pr_vdebug("gs_flush_chars: (%d,%p)\n", port->port_num, tty); + + spin_lock_irqsave(&port->port_lock, flags); + if (port->port_usb) + gs_start_tx(port); + spin_unlock_irqrestore(&port->port_lock, flags); +} + +static int gs_write_room(struct tty_struct *tty) +{ + struct gs_port *port = tty->driver_data; + unsigned long flags; + int room = 0; + + spin_lock_irqsave(&port->port_lock, flags); + if (port->port_usb) + room = gs_buf_space_avail(&port->port_write_buf); + spin_unlock_irqrestore(&port->port_lock, flags); + + pr_vdebug("gs_write_room: (%d,%p) room=%d\n", + port->port_num, tty, room); + + return room; +} + +static int gs_chars_in_buffer(struct tty_struct *tty) +{ + struct gs_port *port = tty->driver_data; + unsigned long flags; + int chars = 0; + + spin_lock_irqsave(&port->port_lock, flags); + chars = gs_buf_data_avail(&port->port_write_buf); + spin_unlock_irqrestore(&port->port_lock, flags); + + pr_vdebug("gs_chars_in_buffer: (%d,%p) chars=%d\n", + port->port_num, tty, chars); + + return chars; +} + +/* undo side effects of setting TTY_THROTTLED */ +static void gs_unthrottle(struct tty_struct *tty) +{ + struct gs_port *port = tty->driver_data; + unsigned long flags; + unsigned started = 0; + + spin_lock_irqsave(&port->port_lock, flags); + if (port->port_usb) + started = gs_start_rx(port); + spin_unlock_irqrestore(&port->port_lock, flags); + + pr_vdebug("gs_unthrottle: ttyGS%d, %d packets\n", + port->port_num, started); +} + +#if 0 + +static void gs_break(struct tty_struct *tty, int break_state) +{ +} + +static int gs_ioctl(struct tty_struct *tty, struct file *file, + unsigned cmd, unsigned long arg) +{ + struct gs_port *port = tty->driver_data; + + pr_debug("gs_ioctl: (%d,%p,%p) cmd=0x%4.4x, arg=%lu\n", + port->port_num, tty, file, cmd, arg); + + /* handle ioctls */ + + /* could not handle ioctl */ + return -ENOIOCTLCMD; +} + +static void gs_set_termios(struct tty_struct *tty, struct ktermios *old) +{ +} + +#endif + +static const struct tty_operations gs_tty_ops = { + .open = gs_open, + .close = gs_close, + .write = gs_write, + .put_char = gs_put_char, + .flush_chars = gs_flush_chars, + .write_room = gs_write_room, + .chars_in_buffer = gs_chars_in_buffer, + .unthrottle = gs_unthrottle, +#if 0 + .break_ctl = gs_break, + .ioctl = gs_ioctl, + .set_termios = gs_set_termios, +#endif +}; + +/*-------------------------------------------------------------------------*/ + +static struct tty_driver *gs_tty_driver; + +static int __init +gs_port_alloc(unsigned port_num, struct usb_cdc_line_coding *coding) +{ + struct gs_port *port; + + port = kzalloc(sizeof(struct gs_port), GFP_KERNEL); + if (port == NULL) + return -ENOMEM; + + spin_lock_init(&port->port_lock); + init_waitqueue_head(&port->close_wait); + init_waitqueue_head(&port->drain_wait); + + tasklet_init(&port->push, gs_rx_push, (unsigned long) port); + + INIT_LIST_HEAD(&port->read_pool); + INIT_LIST_HEAD(&port->write_pool); + + port->port_num = port_num; + port->port_line_coding = *coding; + + ports[port_num].port = port; + + return 0; +} + +/** + * gserial_setup - initialize TTY driver for one or more ports + * @g: gadget to associate with these ports + * @count: how many ports to support + * Context: may sleep + * + * The TTY stack needs to know in advance how many devices it should + * plan to manage. Use this call to set up the ports you will be + * exporting through USB. Later, connect them to functions based + * on what configuration is activated by the USB host; and disconnect + * them as appropriate. + * + * An example would be a two-configuration device in which both + * configurations expose port 0, but through different functions. + * One configuration could even expose port 1 while the other + * one doesn't. + * + * Returns negative errno or zero. + */ +int __init gserial_setup(struct usb_gadget *g, unsigned count) +{ + unsigned i; + struct usb_cdc_line_coding coding; + int status; + + if (count == 0 || count > N_PORTS) + return -EINVAL; + + gs_tty_driver = alloc_tty_driver(count); + if (!gs_tty_driver) + return -ENOMEM; + + gs_tty_driver->owner = THIS_MODULE; + gs_tty_driver->driver_name = "g_serial"; + gs_tty_driver->name = "ttyGS"; + /* uses dynamically assigned dev_t values */ + + gs_tty_driver->type = TTY_DRIVER_TYPE_SERIAL; + gs_tty_driver->subtype = SERIAL_TYPE_NORMAL; + gs_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; + gs_tty_driver->init_termios = tty_std_termios; + + /* 9600-8-N-1 ... matches defaults expected by "usbser.sys" on + * MS-Windows. Otherwise, most of these flags shouldn't affect + * anything unless we were to actually hook up to a serial line. + */ + gs_tty_driver->init_termios.c_cflag = + B9600 | CS8 | CREAD | HUPCL | CLOCAL; + gs_tty_driver->init_termios.c_ispeed = 9600; + gs_tty_driver->init_termios.c_ospeed = 9600; + + coding.dwDTERate = __constant_cpu_to_le32(9600); + coding.bCharFormat = 8; + coding.bParityType = USB_CDC_NO_PARITY; + coding.bDataBits = USB_CDC_1_STOP_BITS; + + tty_set_operations(gs_tty_driver, &gs_tty_ops); + + /* make devices be openable */ + for (i = 0; i < count; i++) { + mutex_init(&ports[i].lock); + status = gs_port_alloc(i, &coding); + if (status) { + count = i; + goto fail; + } + } + n_ports = count; + + /* export the driver ... */ + status = tty_register_driver(gs_tty_driver); + if (status) { + put_tty_driver(gs_tty_driver); + pr_err("%s: cannot register, err %d\n", + __func__, status); + goto fail; + } + + /* ... and sysfs class devices, so mdev/udev make /dev/ttyGS* */ + for (i = 0; i < count; i++) { + struct device *tty_dev; + + tty_dev = tty_register_device(gs_tty_driver, i, &g->dev); + if (IS_ERR(tty_dev)) + pr_warning("%s: no classdev for port %d, err %ld\n", + __func__, i, PTR_ERR(tty_dev)); + } + + pr_debug("%s: registered %d ttyGS* device%s\n", __func__, + count, (count == 1) ? "" : "s"); + + return status; +fail: + while (count--) + kfree(ports[count].port); + put_tty_driver(gs_tty_driver); + gs_tty_driver = NULL; + return status; +} + +static int gs_closed(struct gs_port *port) +{ + int cond; + + spin_lock_irq(&port->port_lock); + cond = (port->open_count == 0) && !port->openclose; + spin_unlock_irq(&port->port_lock); + return cond; +} + +/** + * gserial_cleanup - remove TTY-over-USB driver and devices + * Context: may sleep + * + * This is called to free all resources allocated by @gserial_setup(). + * Accordingly, it may need to wait until some open /dev/ files have + * closed. + * + * The caller must have issued @gserial_disconnect() for any ports + * that had previously been connected, so that there is never any + * I/O pending when it's called. + */ +void gserial_cleanup(void) +{ + unsigned i; + struct gs_port *port; + + /* start sysfs and /dev/ttyGS* node removal */ + for (i = 0; i < n_ports; i++) + tty_unregister_device(gs_tty_driver, i); + + for (i = 0; i < n_ports; i++) { + /* prevent new opens */ + mutex_lock(&ports[i].lock); + port = ports[i].port; + ports[i].port = NULL; + mutex_unlock(&ports[i].lock); + + /* wait for old opens to finish */ + wait_event(port->close_wait, gs_closed(port)); + + WARN_ON(port->port_usb != NULL); + + kfree(port); + } + n_ports = 0; + + tty_unregister_driver(gs_tty_driver); + gs_tty_driver = NULL; + + pr_debug("%s: cleaned up ttyGS* support\n", __func__); +} + +/** + * gserial_connect - notify TTY I/O glue that USB link is active + * @gser: the function, set up with endpoints and descriptors + * @port_num: which port is active + * Context: any (usually from irq) + * + * This is called activate endpoints and let the TTY layer know that + * the connection is active ... not unlike "carrier detect". It won't + * necessarily start I/O queues; unless the TTY is held open by any + * task, there would be no point. However, the endpoints will be + * activated so the USB host can perform I/O, subject to basic USB + * hardware flow control. + * + * Caller needs to have set up the endpoints and USB function in @dev + * before calling this, as well as the appropriate (speed-specific) + * endpoint descriptors, and also have set up the TTY driver by calling + * @gserial_setup(). + * + * Returns negative errno or zero. + * On success, ep->driver_data will be overwritten. + */ +int gserial_connect(struct gserial *gser, u8 port_num) +{ + struct gs_port *port; + unsigned long flags; + int status; + + if (!gs_tty_driver || port_num >= n_ports) + return -ENXIO; + + /* we "know" gserial_cleanup() hasn't been called */ + port = ports[port_num].port; + + /* activate the endpoints */ + status = usb_ep_enable(gser->in, gser->in_desc); + if (status < 0) + return status; + gser->in->driver_data = port; + + status = usb_ep_enable(gser->out, gser->out_desc); + if (status < 0) + goto fail_out; + gser->out->driver_data = port; + + /* then tell the tty glue that I/O can work */ + spin_lock_irqsave(&port->port_lock, flags); + gser->ioport = port; + port->port_usb = gser; + + /* REVISIT unclear how best to handle this state... + * we don't really couple it with the Linux TTY. + */ + gser->port_line_coding = port->port_line_coding; + + /* REVISIT if waiting on "carrier detect", signal. */ + + /* REVISIT for ACM, issue "network connection" status notification: + * connected if open_count, else disconnected. + */ + + /* if it's already open, start I/O */ + if (port->open_count) { + pr_debug("gserial_connect: start ttyGS%d\n", port->port_num); + gs_start_io(port); + } + + spin_unlock_irqrestore(&port->port_lock, flags); + + return status; + +fail_out: + usb_ep_disable(gser->in); + gser->in->driver_data = NULL; + return status; +} + +/** + * gserial_disconnect - notify TTY I/O glue that USB link is inactive + * @gser: the function, on which gserial_connect() was called + * Context: any (usually from irq) + * + * This is called to deactivate endpoints and let the TTY layer know + * that the connection went inactive ... not unlike "hangup". + * + * On return, the state is as if gserial_connect() had never been called; + * there is no active USB I/O on these endpoints. + */ +void gserial_disconnect(struct gserial *gser) +{ + struct gs_port *port = gser->ioport; + unsigned long flags; + + if (!port) + return; + + /* tell the TTY glue not to do I/O here any more */ + spin_lock_irqsave(&port->port_lock, flags); + + /* REVISIT as above: how best to track this? */ + port->port_line_coding = gser->port_line_coding; + + port->port_usb = NULL; + gser->ioport = NULL; + if (port->open_count > 0 || port->openclose) { + wake_up_interruptible(&port->drain_wait); + if (port->port_tty) + tty_hangup(port->port_tty); + } + spin_unlock_irqrestore(&port->port_lock, flags); + + /* disable endpoints, aborting down any active I/O */ + usb_ep_disable(gser->out); + gser->out->driver_data = NULL; + + usb_ep_disable(gser->in); + gser->in->driver_data = NULL; + + /* finally, free any unused/unusable I/O buffers */ + spin_lock_irqsave(&port->port_lock, flags); + if (port->open_count == 0 && !port->openclose) + gs_buf_free(&port->port_write_buf); + gs_free_requests(gser->out, &port->read_pool); + gs_free_requests(gser->in, &port->write_pool); + spin_unlock_irqrestore(&port->port_lock, flags); +} diff --git a/drivers/usb/gadget/u_serial.h b/drivers/usb/gadget/u_serial.h new file mode 100644 index 000000000000..eef881b8a574 --- /dev/null +++ b/drivers/usb/gadget/u_serial.h @@ -0,0 +1,47 @@ +#ifndef __U_SERIAL_H +#define __U_SERIAL_H + +#include <linux/usb/composite.h> +#include <linux/usb/cdc.h> + +/* + * One non-multiplexed "serial" I/O port ... there can be several of these + * on any given USB peripheral device, if it provides enough endpoints. + * + * The "u_serial" utility module exists to do one thing: manage TTY style + * I/O using the USB peripheral endpoints listed here, including hookups + * to sysfs and /dev for each logical "tty" device. + * + * REVISIT need TTY --> USB event flow too, so ACM can report open/close + * as carrier detect events. There's other ACM state too... + * + * REVISIT someday, allow multiplexing several TTYs over these endpoints. + */ +struct gserial { + struct usb_function func; + + /* port is managed by gserial_{connect,disconnect} */ + struct gs_port *ioport; + + struct usb_ep *in; + struct usb_ep *out; + struct usb_endpoint_descriptor *in_desc; + struct usb_endpoint_descriptor *out_desc; + + /* REVISIT avoid this CDC-ACM support harder ... */ + struct usb_cdc_line_coding port_line_coding; /* 9600-8-N-1 etc */ +}; + +/* port setup/teardown is handled by gadget driver */ +int gserial_setup(struct usb_gadget *g, unsigned n_ports); +void gserial_cleanup(void); + +/* connect/disconnect is handled by individual functions */ +int gserial_connect(struct gserial *, u8 port_num); +void gserial_disconnect(struct gserial *); + +/* functions are bound to configurations by a config or gadget driver */ +int acm_bind_config(struct usb_configuration *c, u8 port_num); +int gser_bind_config(struct usb_configuration *c, u8 port_num); + +#endif /* __U_SERIAL_H */ diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index fce4924dbbe8..7a87d2c1ad03 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -30,12 +30,7 @@ * * It supports two similar configurations. One sinks whatever the usb host * writes, and in return sources zeroes. The other loops whatever the host - * writes back, so the host can read it. Module options include: - * - * buflen=N default N=4096, buffer size used - * qlen=N default N=32, how many buffers in the loopback queue - * loopdefault default false, list loopback config first - * autoresume=N default N=0, seconds before triggering remote wakeup + * writes back, so the host can read it. * * Many drivers will only have one configuration, letting them be much * simpler if they also don't support high speed operation (like this @@ -47,94 +42,35 @@ * work with low capability USB controllers without four bulk endpoints. */ +/* + * driver assumes self-powered hardware, and + * has no way for users to trigger remote wakeup. + */ + /* #define VERBOSE_DEBUG */ #include <linux/kernel.h> #include <linux/utsname.h> #include <linux/device.h> -#include <linux/usb/ch9.h> -#include <linux/usb/gadget.h> - +#include "g_zero.h" #include "gadget_chips.h" /*-------------------------------------------------------------------------*/ -#define DRIVER_VERSION "Earth Day 2008" +#define DRIVER_VERSION "Cinco de Mayo 2008" -static const char shortname[] = "zero"; static const char longname[] = "Gadget Zero"; -static const char source_sink[] = "source and sink data"; -static const char loopback[] = "loop input to output"; - -/*-------------------------------------------------------------------------*/ - -/* - * driver assumes self-powered hardware, and - * has no way for users to trigger remote wakeup. - * - * this version autoconfigures as much as possible, - * which is reasonable for most "bulk-only" drivers. - */ -static const char *EP_IN_NAME; /* source */ -static const char *EP_OUT_NAME; /* sink */ - -/*-------------------------------------------------------------------------*/ - -/* big enough to hold our biggest descriptor */ -#define USB_BUFSIZ 256 - -struct zero_dev { - spinlock_t lock; - struct usb_gadget *gadget; - struct usb_request *req; /* for control responses */ - - /* when configured, we have one of two configs: - * - source data (in to host) and sink it (out from host) - * - or loop it back (out from host back in to host) - */ - u8 config; - struct usb_ep *in_ep, *out_ep; - - /* autoresume timer */ - struct timer_list resume; -}; - -#define DBG(d, fmt, args...) \ - dev_dbg(&(d)->gadget->dev , fmt , ## args) -#define VDBG(d, fmt, args...) \ - dev_vdbg(&(d)->gadget->dev , fmt , ## args) -#define ERROR(d, fmt, args...) \ - dev_err(&(d)->gadget->dev , fmt , ## args) -#define WARN(d, fmt, args...) \ - dev_warn(&(d)->gadget->dev , fmt , ## args) -#define INFO(d, fmt, args...) \ - dev_info(&(d)->gadget->dev , fmt , ## args) - -/*-------------------------------------------------------------------------*/ - -static unsigned buflen = 4096; -static unsigned qlen = 32; -static unsigned pattern = 0; - -module_param(buflen, uint, S_IRUGO); -module_param(qlen, uint, S_IRUGO); -module_param(pattern, uint, S_IRUGO|S_IWUSR); - -/* - * if it's nonzero, autoresume says how many seconds to wait - * before trying to wake up the host after suspend. - */ -static unsigned autoresume = 0; -module_param(autoresume, uint, 0); +unsigned buflen = 4096; +module_param(buflen, uint, 0); /* * Normally the "loopback" configuration is second (index 1) so * it's not the default. Here's where to change that order, to - * work better with hosts where config changes are problematic. - * Or controllers (like superh) that only support one config. + * work better with hosts where config changes are problematic or + * controllers (like original superh) that only support one config. */ static int loopdefault = 0; module_param(loopdefault, bool, S_IRUGO|S_IWUSR); @@ -156,24 +92,6 @@ module_param(loopdefault, bool, S_IRUGO|S_IWUSR); /*-------------------------------------------------------------------------*/ -/* - * DESCRIPTORS ... most are static, but strings and (full) - * configuration descriptors are built on demand. - */ - -#define STRING_MANUFACTURER 25 -#define STRING_PRODUCT 42 -#define STRING_SERIAL 101 -#define STRING_SOURCE_SINK 250 -#define STRING_LOOPBACK 251 - -/* - * This device advertises two configurations; these numbers work - * on a pxa250 as well as more flexible hardware. - */ -#define CONFIG_SOURCE_SINK 3 -#define CONFIG_LOOPBACK 2 - static struct usb_device_descriptor device_desc = { .bLength = sizeof device_desc, .bDescriptorType = USB_DT_DEVICE, @@ -183,248 +101,64 @@ static struct usb_device_descriptor device_desc = { .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_NUM), .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_NUM), - .iManufacturer = STRING_MANUFACTURER, - .iProduct = STRING_PRODUCT, - .iSerialNumber = STRING_SERIAL, .bNumConfigurations = 2, }; -static struct usb_config_descriptor source_sink_config = { - .bLength = sizeof source_sink_config, - .bDescriptorType = USB_DT_CONFIG, - - /* compute wTotalLength on the fly */ - .bNumInterfaces = 1, - .bConfigurationValue = CONFIG_SOURCE_SINK, - .iConfiguration = STRING_SOURCE_SINK, - .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* self-powered */ -}; - -static struct usb_config_descriptor loopback_config = { - .bLength = sizeof loopback_config, - .bDescriptorType = USB_DT_CONFIG, - - /* compute wTotalLength on the fly */ - .bNumInterfaces = 1, - .bConfigurationValue = CONFIG_LOOPBACK, - .iConfiguration = STRING_LOOPBACK, - .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .bMaxPower = 1, /* self-powered */ -}; - +#ifdef CONFIG_USB_OTG static struct usb_otg_descriptor otg_descriptor = { .bLength = sizeof otg_descriptor, .bDescriptorType = USB_DT_OTG, - .bmAttributes = USB_OTG_SRP, -}; - -/* one interface in each configuration */ - -static const struct usb_interface_descriptor source_sink_intf = { - .bLength = sizeof source_sink_intf, - .bDescriptorType = USB_DT_INTERFACE, - - .bNumEndpoints = 2, - .bInterfaceClass = USB_CLASS_VENDOR_SPEC, - .iInterface = STRING_SOURCE_SINK, -}; - -static const struct usb_interface_descriptor loopback_intf = { - .bLength = sizeof loopback_intf, - .bDescriptorType = USB_DT_INTERFACE, - - .bNumEndpoints = 2, - .bInterfaceClass = USB_CLASS_VENDOR_SPEC, - .iInterface = STRING_LOOPBACK, -}; - -/* two full speed bulk endpoints; their use is config-dependent */ - -static struct usb_endpoint_descriptor fs_source_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_BULK, -}; - -static struct usb_endpoint_descriptor fs_sink_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bEndpointAddress = USB_DIR_OUT, - .bmAttributes = USB_ENDPOINT_XFER_BULK, -}; - -static const struct usb_descriptor_header *fs_source_sink_function[] = { - (struct usb_descriptor_header *) &otg_descriptor, - (struct usb_descriptor_header *) &source_sink_intf, - (struct usb_descriptor_header *) &fs_sink_desc, - (struct usb_descriptor_header *) &fs_source_desc, - NULL, -}; - -static const struct usb_descriptor_header *fs_loopback_function[] = { - (struct usb_descriptor_header *) &otg_descriptor, - (struct usb_descriptor_header *) &loopback_intf, - (struct usb_descriptor_header *) &fs_sink_desc, - (struct usb_descriptor_header *) &fs_source_desc, - NULL, -}; - -/* - * usb 2.0 devices need to expose both high speed and full speed - * descriptors, unless they only run at full speed. - * - * that means alternate endpoint descriptors (bigger packets) - * and a "device qualifier" ... plus more construction options - * for the config descriptor. - */ - -static struct usb_endpoint_descriptor hs_source_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), -}; - -static struct usb_endpoint_descriptor hs_sink_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), -}; - -static struct usb_qualifier_descriptor dev_qualifier = { - .bLength = sizeof dev_qualifier, - .bDescriptorType = USB_DT_DEVICE_QUALIFIER, - - .bcdUSB = __constant_cpu_to_le16(0x0200), - .bDeviceClass = USB_CLASS_VENDOR_SPEC, - - .bNumConfigurations = 2, + /* REVISIT SRP-only hardware is possible, although + * it would not be called "OTG" ... + */ + .bmAttributes = USB_OTG_SRP | USB_OTG_HNP, }; -static const struct usb_descriptor_header *hs_source_sink_function[] = { +const struct usb_descriptor_header **otg_desc = { (struct usb_descriptor_header *) &otg_descriptor, - (struct usb_descriptor_header *) &source_sink_intf, - (struct usb_descriptor_header *) &hs_source_desc, - (struct usb_descriptor_header *) &hs_sink_desc, NULL, }; +#endif -static const struct usb_descriptor_header *hs_loopback_function[] = { - (struct usb_descriptor_header *) &otg_descriptor, - (struct usb_descriptor_header *) &loopback_intf, - (struct usb_descriptor_header *) &hs_source_desc, - (struct usb_descriptor_header *) &hs_sink_desc, - NULL, -}; +/* string IDs are assigned dynamically */ -/* maxpacket and other transfer characteristics vary by speed. */ -static inline struct usb_endpoint_descriptor * -ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *hs, - struct usb_endpoint_descriptor *fs) -{ - if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) - return hs; - return fs; -} +#define STRING_MANUFACTURER_IDX 0 +#define STRING_PRODUCT_IDX 1 +#define STRING_SERIAL_IDX 2 static char manufacturer[50]; /* default serial number takes at least two packets */ static char serial[] = "0123456789.0123456789.0123456789"; - -/* static strings, in UTF-8 */ -static struct usb_string strings[] = { - { STRING_MANUFACTURER, manufacturer, }, - { STRING_PRODUCT, longname, }, - { STRING_SERIAL, serial, }, - { STRING_LOOPBACK, loopback, }, - { STRING_SOURCE_SINK, source_sink, }, +static struct usb_string strings_dev[] = { + [STRING_MANUFACTURER_IDX].s = manufacturer, + [STRING_PRODUCT_IDX].s = longname, + [STRING_SERIAL_IDX].s = serial, { } /* end of list */ }; -static struct usb_gadget_strings stringtab = { +static struct usb_gadget_strings stringtab_dev = { .language = 0x0409, /* en-us */ - .strings = strings, + .strings = strings_dev, }; -/* - * config descriptors are also handcrafted. these must agree with code - * that sets configurations, and with code managing interfaces and their - * altsettings. other complexity may come from: - * - * - high speed support, including "other speed config" rules - * - multiple configurations - * - interfaces with alternate settings - * - embedded class or vendor-specific descriptors - * - * this handles high speed, and has a second config that could as easily - * have been an alternate interface setting (on most hardware). - * - * NOTE: to demonstrate (and test) more USB capabilities, this driver - * should include an altsetting to test interrupt transfers, including - * high bandwidth modes at high speed. (Maybe work like Intel's test - * device?) - */ -static int config_buf(struct usb_gadget *gadget, - u8 *buf, u8 type, unsigned index) -{ - int is_source_sink; - int len; - const struct usb_descriptor_header **function; - int hs = 0; - - /* two configurations will always be index 0 and index 1 */ - if (index > 1) - return -EINVAL; - is_source_sink = loopdefault ? (index == 1) : (index == 0); - - if (gadget_is_dualspeed(gadget)) { - hs = (gadget->speed == USB_SPEED_HIGH); - if (type == USB_DT_OTHER_SPEED_CONFIG) - hs = !hs; - } - if (hs) - function = is_source_sink - ? hs_source_sink_function - : hs_loopback_function; - else - function = is_source_sink - ? fs_source_sink_function - : fs_loopback_function; - - /* for now, don't advertise srp-only devices */ - if (!gadget_is_otg(gadget)) - function++; - - len = usb_gadget_config_buf(is_source_sink - ? &source_sink_config - : &loopback_config, - buf, USB_BUFSIZ, function); - if (len < 0) - return len; - ((struct usb_config_descriptor *) buf)->bDescriptorType = type; - return len; -} +static struct usb_gadget_strings *dev_strings[] = { + &stringtab_dev, + NULL, +}; /*-------------------------------------------------------------------------*/ -static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length) +struct usb_request *alloc_ep_req(struct usb_ep *ep) { struct usb_request *req; req = usb_ep_alloc_request(ep, GFP_ATOMIC); if (req) { - req->length = length; - req->buf = kmalloc(length, GFP_ATOMIC); + req->length = buflen; + req->buf = kmalloc(buflen, GFP_ATOMIC); if (!req->buf) { usb_ep_free_request(ep, req); req = NULL; @@ -433,681 +167,73 @@ static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length) return req; } -static void free_ep_req(struct usb_ep *ep, struct usb_request *req) +void free_ep_req(struct usb_ep *ep, struct usb_request *req) { kfree(req->buf); usb_ep_free_request(ep, req); } -/*-------------------------------------------------------------------------*/ - -/* - * SOURCE/SINK FUNCTION ... a primary testing vehicle for USB peripherals, - * this just sinks bulk packets OUT to the peripheral and sources them IN - * to the host, optionally with specific data patterns. - * - * In terms of control messaging, this supports all the standard requests - * plus two that support control-OUT tests. - * - * Note that because this doesn't queue more than one request at a time, - * some other function must be used to test queueing logic. The network - * link (g_ether) is probably the best option for that. - */ - -/* optionally require specific source/sink data patterns */ - -static int -check_read_data( - struct zero_dev *dev, - struct usb_ep *ep, - struct usb_request *req -) +static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep) { - unsigned i; - u8 *buf = req->buf; - - for (i = 0; i < req->actual; i++, buf++) { - switch (pattern) { - /* all-zeroes has no synchronization issues */ - case 0: - if (*buf == 0) - continue; - break; - /* mod63 stays in sync with short-terminated transfers, - * or otherwise when host and gadget agree on how large - * each usb transfer request should be. resync is done - * with set_interface or set_config. - */ - case 1: - if (*buf == (u8)(i % 63)) - continue; - break; - } - ERROR(dev, "bad OUT byte, buf[%d] = %d\n", i, *buf); - usb_ep_set_halt(ep); - return -EINVAL; + int value; + + if (ep->driver_data) { + value = usb_ep_disable(ep); + if (value < 0) + DBG(cdev, "disable %s --> %d\n", + ep->name, value); + ep->driver_data = NULL; } - return 0; } -static void reinit_write_data(struct usb_ep *ep, struct usb_request *req) +void disable_endpoints(struct usb_composite_dev *cdev, + struct usb_ep *in, struct usb_ep *out) { - unsigned i; - u8 *buf = req->buf; - - switch (pattern) { - case 0: - memset(req->buf, 0, req->length); - break; - case 1: - for (i = 0; i < req->length; i++) - *buf++ = (u8) (i % 63); - break; - } -} - -/* if there is only one request in the queue, there'll always be an - * irq delay between end of one request and start of the next. - * that prevents using hardware dma queues. - */ -static void source_sink_complete(struct usb_ep *ep, struct usb_request *req) -{ - struct zero_dev *dev = ep->driver_data; - int status = req->status; - - switch (status) { - - case 0: /* normal completion? */ - if (ep == dev->out_ep) { - check_read_data(dev, ep, req); - memset(req->buf, 0x55, req->length); - } else - reinit_write_data(ep, req); - break; - - /* this endpoint is normally active while we're configured */ - case -ECONNABORTED: /* hardware forced ep reset */ - case -ECONNRESET: /* request dequeued */ - case -ESHUTDOWN: /* disconnect from host */ - VDBG(dev, "%s gone (%d), %d/%d\n", ep->name, status, - req->actual, req->length); - if (ep == dev->out_ep) - check_read_data(dev, ep, req); - free_ep_req(ep, req); - return; - - case -EOVERFLOW: /* buffer overrun on read means that - * we didn't provide a big enough - * buffer. - */ - default: -#if 1 - DBG(dev, "%s complete --> %d, %d/%d\n", ep->name, - status, req->actual, req->length); -#endif - case -EREMOTEIO: /* short read */ - break; - } - - status = usb_ep_queue(ep, req, GFP_ATOMIC); - if (status) { - ERROR(dev, "kill %s: resubmit %d bytes --> %d\n", - ep->name, req->length, status); - usb_ep_set_halt(ep); - /* FIXME recover later ... somehow */ - } -} - -static struct usb_request *source_sink_start_ep(struct usb_ep *ep) -{ - struct usb_request *req; - int status; - - req = alloc_ep_req(ep, buflen); - if (!req) - return NULL; - - memset(req->buf, 0, req->length); - req->complete = source_sink_complete; - - if (strcmp(ep->name, EP_IN_NAME) == 0) - reinit_write_data(ep, req); - else - memset(req->buf, 0x55, req->length); - - status = usb_ep_queue(ep, req, GFP_ATOMIC); - if (status) { - struct zero_dev *dev = ep->driver_data; - - ERROR(dev, "start %s --> %d\n", ep->name, status); - free_ep_req(ep, req); - req = NULL; - } - - return req; -} - -static int set_source_sink_config(struct zero_dev *dev) -{ - int result = 0; - struct usb_ep *ep; - struct usb_gadget *gadget = dev->gadget; - - gadget_for_each_ep(ep, gadget) { - const struct usb_endpoint_descriptor *d; - - /* one endpoint writes (sources) zeroes in (to the host) */ - if (strcmp(ep->name, EP_IN_NAME) == 0) { - d = ep_desc(gadget, &hs_source_desc, &fs_source_desc); - result = usb_ep_enable(ep, d); - if (result == 0) { - ep->driver_data = dev; - if (source_sink_start_ep(ep) != NULL) { - dev->in_ep = ep; - continue; - } - usb_ep_disable(ep); - result = -EIO; - } - - /* one endpoint reads (sinks) anything out (from the host) */ - } else if (strcmp(ep->name, EP_OUT_NAME) == 0) { - d = ep_desc(gadget, &hs_sink_desc, &fs_sink_desc); - result = usb_ep_enable(ep, d); - if (result == 0) { - ep->driver_data = dev; - if (source_sink_start_ep(ep) != NULL) { - dev->out_ep = ep; - continue; - } - usb_ep_disable(ep); - result = -EIO; - } - - /* ignore any other endpoints */ - } else - continue; - - /* stop on error */ - ERROR(dev, "can't start %s, result %d\n", ep->name, result); - break; - } - if (result == 0) - DBG(dev, "buflen %d\n", buflen); - - /* caller is responsible for cleanup on error */ - return result; -} - -/*-------------------------------------------------------------------------*/ - -static void loopback_complete(struct usb_ep *ep, struct usb_request *req) -{ - struct zero_dev *dev = ep->driver_data; - int status = req->status; - - switch (status) { - - case 0: /* normal completion? */ - if (ep == dev->out_ep) { - /* loop this OUT packet back IN to the host */ - req->zero = (req->actual < req->length); - req->length = req->actual; - status = usb_ep_queue(dev->in_ep, req, GFP_ATOMIC); - if (status == 0) - return; - - /* "should never get here" */ - ERROR(dev, "can't loop %s to %s: %d\n", - ep->name, dev->in_ep->name, - status); - } - - /* queue the buffer for some later OUT packet */ - req->length = buflen; - status = usb_ep_queue(dev->out_ep, req, GFP_ATOMIC); - if (status == 0) - return; - - /* "should never get here" */ - /* FALLTHROUGH */ - - default: - ERROR(dev, "%s loop complete --> %d, %d/%d\n", ep->name, - status, req->actual, req->length); - /* FALLTHROUGH */ - - /* NOTE: since this driver doesn't maintain an explicit record - * of requests it submitted (just maintains qlen count), we - * rely on the hardware driver to clean up on disconnect or - * endpoint disable. - */ - case -ECONNABORTED: /* hardware forced ep reset */ - case -ECONNRESET: /* request dequeued */ - case -ESHUTDOWN: /* disconnect from host */ - free_ep_req(ep, req); - return; - } -} - -static int set_loopback_config(struct zero_dev *dev) -{ - int result = 0; - struct usb_ep *ep; - struct usb_gadget *gadget = dev->gadget; - - gadget_for_each_ep(ep, gadget) { - const struct usb_endpoint_descriptor *d; - - /* one endpoint writes data back IN to the host */ - if (strcmp(ep->name, EP_IN_NAME) == 0) { - d = ep_desc(gadget, &hs_source_desc, &fs_source_desc); - result = usb_ep_enable(ep, d); - if (result == 0) { - ep->driver_data = dev; - dev->in_ep = ep; - continue; - } - - /* one endpoint just reads OUT packets */ - } else if (strcmp(ep->name, EP_OUT_NAME) == 0) { - d = ep_desc(gadget, &hs_sink_desc, &fs_sink_desc); - result = usb_ep_enable(ep, d); - if (result == 0) { - ep->driver_data = dev; - dev->out_ep = ep; - continue; - } - - /* ignore any other endpoints */ - } else - continue; - - /* stop on error */ - ERROR(dev, "can't enable %s, result %d\n", ep->name, result); - break; - } - - /* allocate a bunch of read buffers and queue them all at once. - * we buffer at most 'qlen' transfers; fewer if any need more - * than 'buflen' bytes each. - */ - if (result == 0) { - struct usb_request *req; - unsigned i; - - ep = dev->out_ep; - for (i = 0; i < qlen && result == 0; i++) { - req = alloc_ep_req(ep, buflen); - if (req) { - req->complete = loopback_complete; - result = usb_ep_queue(ep, req, GFP_ATOMIC); - if (result) - DBG(dev, "%s queue req --> %d\n", - ep->name, result); - } else - result = -ENOMEM; - } - } - if (result == 0) - DBG(dev, "qlen %d, buflen %d\n", qlen, buflen); - - /* caller is responsible for cleanup on error */ - return result; -} - -/*-------------------------------------------------------------------------*/ - -static void zero_reset_config(struct zero_dev *dev) -{ - if (dev->config == 0) - return; - - DBG(dev, "reset config\n"); - - /* just disable endpoints, forcing completion of pending i/o. - * all our completion handlers free their requests in this case. - */ - if (dev->in_ep) { - usb_ep_disable(dev->in_ep); - dev->in_ep = NULL; - } - if (dev->out_ep) { - usb_ep_disable(dev->out_ep); - dev->out_ep = NULL; - } - dev->config = 0; - del_timer(&dev->resume); -} - -/* change our operational config. this code must agree with the code - * that returns config descriptors, and altsetting code. - * - * it's also responsible for power management interactions. some - * configurations might not work with our current power sources. - * - * note that some device controller hardware will constrain what this - * code can do, perhaps by disallowing more than one configuration or - * by limiting configuration choices (like the pxa2xx). - */ -static int zero_set_config(struct zero_dev *dev, unsigned number) -{ - int result = 0; - struct usb_gadget *gadget = dev->gadget; - - if (number == dev->config) - return 0; - - if (gadget_is_sa1100(gadget) && dev->config) { - /* tx fifo is full, but we can't clear it...*/ - ERROR(dev, "can't change configurations\n"); - return -ESPIPE; - } - zero_reset_config(dev); - - switch (number) { - case CONFIG_SOURCE_SINK: - result = set_source_sink_config(dev); - break; - case CONFIG_LOOPBACK: - result = set_loopback_config(dev); - break; - default: - result = -EINVAL; - /* FALL THROUGH */ - case 0: - return result; - } - - if (!result && (!dev->in_ep || !dev->out_ep)) - result = -ENODEV; - if (result) - zero_reset_config(dev); - else { - char *speed; - - switch (gadget->speed) { - case USB_SPEED_LOW: speed = "low"; break; - case USB_SPEED_FULL: speed = "full"; break; - case USB_SPEED_HIGH: speed = "high"; break; - default: speed = "?"; break; - } - - dev->config = number; - INFO(dev, "%s speed config #%d: %s\n", speed, number, - (number == CONFIG_SOURCE_SINK) - ? source_sink : loopback); - } - return result; -} - -/*-------------------------------------------------------------------------*/ - -static void zero_setup_complete(struct usb_ep *ep, struct usb_request *req) -{ - if (req->status || req->actual != req->length) - DBG((struct zero_dev *) ep->driver_data, - "setup complete --> %d, %d/%d\n", - req->status, req->actual, req->length); -} - -/* - * The setup() callback implements all the ep0 functionality that's - * not handled lower down, in hardware or the hardware driver (like - * device and endpoint feature flags, and their status). It's all - * housekeeping for the gadget function we're implementing. Most of - * the work is in config-specific setup. - */ -static int -zero_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) -{ - struct zero_dev *dev = get_gadget_data(gadget); - struct usb_request *req = dev->req; - int value = -EOPNOTSUPP; - u16 w_index = le16_to_cpu(ctrl->wIndex); - u16 w_value = le16_to_cpu(ctrl->wValue); - u16 w_length = le16_to_cpu(ctrl->wLength); - - /* usually this stores reply data in the pre-allocated ep0 buffer, - * but config change events will reconfigure hardware. - */ - req->zero = 0; - switch (ctrl->bRequest) { - - case USB_REQ_GET_DESCRIPTOR: - if (ctrl->bRequestType != USB_DIR_IN) - goto unknown; - switch (w_value >> 8) { - - case USB_DT_DEVICE: - value = min(w_length, (u16) sizeof device_desc); - memcpy(req->buf, &device_desc, value); - break; - case USB_DT_DEVICE_QUALIFIER: - if (!gadget_is_dualspeed(gadget)) - break; - value = min(w_length, (u16) sizeof dev_qualifier); - memcpy(req->buf, &dev_qualifier, value); - break; - - case USB_DT_OTHER_SPEED_CONFIG: - if (!gadget_is_dualspeed(gadget)) - break; - // FALLTHROUGH - case USB_DT_CONFIG: - value = config_buf(gadget, req->buf, - w_value >> 8, - w_value & 0xff); - if (value >= 0) - value = min(w_length, (u16) value); - break; - - case USB_DT_STRING: - /* wIndex == language code. - * this driver only handles one language, you can - * add string tables for other languages, using - * any UTF-8 characters - */ - value = usb_gadget_get_string(&stringtab, - w_value & 0xff, req->buf); - if (value >= 0) - value = min(w_length, (u16) value); - break; - } - break; - - /* currently two configs, two speeds */ - case USB_REQ_SET_CONFIGURATION: - if (ctrl->bRequestType != 0) - goto unknown; - if (gadget->a_hnp_support) - DBG(dev, "HNP available\n"); - else if (gadget->a_alt_hnp_support) - DBG(dev, "HNP needs a different root port\n"); - else - VDBG(dev, "HNP inactive\n"); - spin_lock(&dev->lock); - value = zero_set_config(dev, w_value); - spin_unlock(&dev->lock); - break; - case USB_REQ_GET_CONFIGURATION: - if (ctrl->bRequestType != USB_DIR_IN) - goto unknown; - *(u8 *)req->buf = dev->config; - value = min(w_length, (u16) 1); - break; - - /* until we add altsetting support, or other interfaces, - * only 0/0 are possible. pxa2xx only supports 0/0 (poorly) - * and already killed pending endpoint I/O. - */ - case USB_REQ_SET_INTERFACE: - if (ctrl->bRequestType != USB_RECIP_INTERFACE) - goto unknown; - spin_lock(&dev->lock); - if (dev->config && w_index == 0 && w_value == 0) { - u8 config = dev->config; - - /* resets interface configuration, forgets about - * previous transaction state (queued bufs, etc) - * and re-inits endpoint state (toggle etc) - * no response queued, just zero status == success. - * if we had more than one interface we couldn't - * use this "reset the config" shortcut. - */ - zero_reset_config(dev); - zero_set_config(dev, config); - value = 0; - } - spin_unlock(&dev->lock); - break; - case USB_REQ_GET_INTERFACE: - if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) - goto unknown; - if (!dev->config) - break; - if (w_index != 0) { - value = -EDOM; - break; - } - *(u8 *)req->buf = 0; - value = min(w_length, (u16) 1); - break; - - /* - * These are the same vendor-specific requests supported by - * Intel's USB 2.0 compliance test devices. We exceed that - * device spec by allowing multiple-packet requests. - */ - case 0x5b: /* control WRITE test -- fill the buffer */ - if (ctrl->bRequestType != (USB_DIR_OUT|USB_TYPE_VENDOR)) - goto unknown; - if (w_value || w_index) - break; - /* just read that many bytes into the buffer */ - if (w_length > USB_BUFSIZ) - break; - value = w_length; - break; - case 0x5c: /* control READ test -- return the buffer */ - if (ctrl->bRequestType != (USB_DIR_IN|USB_TYPE_VENDOR)) - goto unknown; - if (w_value || w_index) - break; - /* expect those bytes are still in the buffer; send back */ - if (w_length > USB_BUFSIZ - || w_length != req->length) - break; - value = w_length; - break; - - default: -unknown: - VDBG(dev, - "unknown control req%02x.%02x v%04x i%04x l%d\n", - ctrl->bRequestType, ctrl->bRequest, - w_value, w_index, w_length); - } - - /* respond with data transfer before status phase? */ - if (value >= 0) { - req->length = value; - req->zero = value < w_length; - value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC); - if (value < 0) { - DBG(dev, "ep_queue --> %d\n", value); - req->status = 0; - zero_setup_complete(gadget->ep0, req); - } - } - - /* device either stalls (value < 0) or reports success */ - return value; -} - -static void zero_disconnect(struct usb_gadget *gadget) -{ - struct zero_dev *dev = get_gadget_data(gadget); - unsigned long flags; - - spin_lock_irqsave(&dev->lock, flags); - zero_reset_config(dev); - - /* a more significant application might have some non-usb - * activities to quiesce here, saving resources like power - * or pushing the notification up a network stack. - */ - spin_unlock_irqrestore(&dev->lock, flags); - - /* next we may get setup() calls to enumerate new connections; - * or an unbind() during shutdown (including removing module). - */ -} - -static void zero_autoresume(unsigned long _dev) -{ - struct zero_dev *dev = (struct zero_dev *) _dev; - int status; - - /* normally the host would be woken up for something - * more significant than just a timer firing... - */ - if (dev->gadget->speed != USB_SPEED_UNKNOWN) { - status = usb_gadget_wakeup(dev->gadget); - DBG(dev, "wakeup --> %d\n", status); - } + disable_ep(cdev, in); + disable_ep(cdev, out); } /*-------------------------------------------------------------------------*/ -static void zero_unbind(struct usb_gadget *gadget) +static int __init zero_bind(struct usb_composite_dev *cdev) { - struct zero_dev *dev = get_gadget_data(gadget); - - DBG(dev, "unbind\n"); - - /* we've already been disconnected ... no i/o is active */ - if (dev->req) { - dev->req->length = USB_BUFSIZ; - free_ep_req(gadget->ep0, dev->req); - } - del_timer_sync(&dev->resume); - kfree(dev); - set_gadget_data(gadget, NULL); -} - -static int __init zero_bind(struct usb_gadget *gadget) -{ - struct zero_dev *dev; - struct usb_ep *ep; int gcnum; + struct usb_gadget *gadget = cdev->gadget; + int id; - /* FIXME this can't yet work right with SH ... it has only - * one configuration, numbered one. + /* Allocate string descriptor numbers ... note that string + * contents can be overridden by the composite_dev glue. */ - if (gadget_is_sh(gadget)) - return -ENODEV; - - /* Bulk-only drivers like this one SHOULD be able to - * autoconfigure on any sane usb controller driver, - * but there may also be important quirks to address. + id = usb_string_id(cdev); + if (id < 0) + return id; + strings_dev[STRING_MANUFACTURER_IDX].id = id; + device_desc.iManufacturer = id; + + id = usb_string_id(cdev); + if (id < 0) + return id; + strings_dev[STRING_PRODUCT_IDX].id = id; + device_desc.iProduct = id; + + id = usb_string_id(cdev); + if (id < 0) + return id; + strings_dev[STRING_SERIAL_IDX].id = id; + device_desc.iSerialNumber = id; + + /* Register primary, then secondary configuration. Note that + * SH3 only allows one config... */ - usb_ep_autoconfig_reset(gadget); - ep = usb_ep_autoconfig(gadget, &fs_source_desc); - if (!ep) { -autoconf_fail: - pr_err("%s: can't autoconfigure on %s\n", - shortname, gadget->name); - return -ENODEV; + if (loopdefault) { + loopback_add(cdev); + if (!gadget_is_sh(gadget)) + sourcesink_add(cdev); + } else { + sourcesink_add(cdev); + if (!gadget_is_sh(gadget)) + loopback_add(cdev); } - EP_IN_NAME = ep->name; - ep->driver_data = ep; /* claim */ - - ep = usb_ep_autoconfig(gadget, &fs_sink_desc); - if (!ep) - goto autoconf_fail; - EP_OUT_NAME = ep->name; - ep->driver_data = ep; /* claim */ gcnum = usb_gadget_controller_number(gadget); if (gcnum >= 0) @@ -1115,144 +241,44 @@ autoconf_fail: else { /* gadget zero is so simple (for now, no altsettings) that * it SHOULD NOT have problems with bulk-capable hardware. - * so warn about unrcognized controllers, don't panic. + * so just warn about unrcognized controllers -- don't panic. * * things like configuration and altsetting numbering * can need hardware-specific attention though. */ pr_warning("%s: controller '%s' not recognized\n", - shortname, gadget->name); + longname, gadget->name); device_desc.bcdDevice = __constant_cpu_to_le16(0x9999); } - /* ok, we made sense of the hardware ... */ - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (!dev) - return -ENOMEM; - spin_lock_init(&dev->lock); - dev->gadget = gadget; - set_gadget_data(gadget, dev); - - init_timer(&dev->resume); - dev->resume.function = zero_autoresume; - dev->resume.data = (unsigned long) dev; - - /* preallocate control response and buffer */ - dev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL); - if (!dev->req) - goto enomem; - dev->req->buf = kmalloc(USB_BUFSIZ, GFP_KERNEL); - if (!dev->req->buf) - goto enomem; - - dev->req->complete = zero_setup_complete; - - device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; - - if (gadget_is_dualspeed(gadget)) { - /* assume ep0 uses the same value for both speeds ... */ - dev_qualifier.bMaxPacketSize0 = device_desc.bMaxPacketSize0; - - /* and that all endpoints are dual-speed */ - hs_source_desc.bEndpointAddress = - fs_source_desc.bEndpointAddress; - hs_sink_desc.bEndpointAddress = - fs_sink_desc.bEndpointAddress; - } - - if (gadget_is_otg(gadget)) { - otg_descriptor.bmAttributes |= USB_OTG_HNP, - source_sink_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; - loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; - } - - usb_gadget_set_selfpowered(gadget); - - if (autoresume) { - source_sink_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; - loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP; - } - - gadget->ep0->driver_data = dev; - - INFO(dev, "%s, version: " DRIVER_VERSION "\n", longname); - INFO(dev, "using %s, OUT %s IN %s\n", gadget->name, - EP_OUT_NAME, EP_IN_NAME); + INFO(cdev, "%s, version: " DRIVER_VERSION "\n", longname); snprintf(manufacturer, sizeof manufacturer, "%s %s with %s", init_utsname()->sysname, init_utsname()->release, gadget->name); return 0; - -enomem: - zero_unbind(gadget); - return -ENOMEM; } -/*-------------------------------------------------------------------------*/ - -static void zero_suspend(struct usb_gadget *gadget) -{ - struct zero_dev *dev = get_gadget_data(gadget); - - if (gadget->speed == USB_SPEED_UNKNOWN) - return; - - if (autoresume) { - mod_timer(&dev->resume, jiffies + (HZ * autoresume)); - DBG(dev, "suspend, wakeup in %d seconds\n", autoresume); - } else - DBG(dev, "suspend\n"); -} - -static void zero_resume(struct usb_gadget *gadget) -{ - struct zero_dev *dev = get_gadget_data(gadget); - - DBG(dev, "resume\n"); - del_timer(&dev->resume); -} - - -/*-------------------------------------------------------------------------*/ - -static struct usb_gadget_driver zero_driver = { -#ifdef CONFIG_USB_GADGET_DUALSPEED - .speed = USB_SPEED_HIGH, -#else - .speed = USB_SPEED_FULL, -#endif - .function = (char *) longname, +static struct usb_composite_driver zero_driver = { + .name = "zero", + .dev = &device_desc, + .strings = dev_strings, .bind = zero_bind, - .unbind = __exit_p(zero_unbind), - - .setup = zero_setup, - .disconnect = zero_disconnect, - - .suspend = zero_suspend, - .resume = zero_resume, - - .driver = { - .name = (char *) shortname, - .owner = THIS_MODULE, - }, }; MODULE_AUTHOR("David Brownell"); MODULE_LICENSE("GPL"); - static int __init init(void) { - return usb_gadget_register_driver(&zero_driver); + return usb_composite_register(&zero_driver); } module_init(init); static void __exit cleanup(void) { - usb_gadget_unregister_driver(&zero_driver); + usb_composite_unregister(&zero_driver); } module_exit(cleanup); - diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 228797e54f9c..515044129bb9 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -305,3 +305,29 @@ config SUPERH_ON_CHIP_R8A66597 help This driver enables support for the on-chip R8A66597 in the SH7366 and SH7723 processors. + +config USB_WHCI_HCD + tristate "Wireless USB Host Controller Interface (WHCI) driver" + depends on PCI && USB + select USB_WUSB + select UWB_WHCI + help + A driver for PCI-based Wireless USB Host Controllers that are + compliant with the WHCI specification. + + To compile this driver a module, choose M here: the module + will be called "whci-hcd". + +config USB_HWA_HCD + tristate "Host Wire Adapter (HWA) driver" + depends on USB + select USB_WUSB + select UWB_HWA + help + This driver enables you to connect Wireless USB devices to + your system using a Host Wire Adaptor USB dongle. This is an + UWB Radio Controller and WUSB Host Controller connected to + your machine via USB (specified in WUSB1.0). + + To compile this driver a module, choose M here: the module + will be called "hwa-hc". diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index f1edda2dcfde..23be22224044 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -8,6 +8,8 @@ endif isp1760-objs := isp1760-hcd.o isp1760-if.o +obj-$(CONFIG_USB_WHCI_HCD) += whci/ + obj-$(CONFIG_PCI) += pci-quirks.o obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o @@ -19,3 +21,4 @@ obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o obj-$(CONFIG_USB_ISP1760_HCD) += isp1760.o +obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 0f82fdcaef09..b0f8ed5a7fb9 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -676,7 +676,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) "%s\n" "SUSPENDED (no register access)\n", hcd->self.controller->bus->name, - hcd->self.controller->bus_id, + dev_name(hcd->self.controller), hcd->product_desc); goto done; } @@ -688,7 +688,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) "%s\n" "EHCI %x.%02x, hcd state %d\n", hcd->self.controller->bus->name, - hcd->self.controller->bus_id, + dev_name(hcd->self.controller), hcd->product_desc, i >> 8, i & 0x0ff, hcd->state); size -= temp; diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 7370d6187c64..f710a2d3423a 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -56,7 +56,7 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data; if (!pdata) { dev_err(&pdev->dev, - "No platform data for %s.\n", pdev->dev.bus_id); + "No platform data for %s.\n", dev_name(&pdev->dev)); return -ENODEV; } @@ -69,7 +69,7 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, (pdata->operating_mode == FSL_USB2_DR_OTG))) { dev_err(&pdev->dev, "Non Host Mode configured for %s. Wrong driver linked.\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); return -ENODEV; } @@ -77,12 +77,12 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, if (!res) { dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); return -ENODEV; } irq = res->start; - hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { retval = -ENOMEM; goto err1; @@ -92,7 +92,7 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, if (!res) { dev_err(&pdev->dev, "Found HC with no register addr. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); retval = -ENODEV; goto err2; } @@ -132,7 +132,7 @@ int usb_hcd_fsl_probe(const struct hc_driver *driver, err2: usb_put_hcd(hcd); err1: - dev_err(&pdev->dev, "init %s fail, %d\n", pdev->dev.bus_id, retval); + dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval); return retval; } diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 369a8a5ea7bb..d9d53f289caf 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -84,7 +84,7 @@ static const char hcd_name [] = "ehci_hcd"; #define EHCI_IAA_MSECS 10 /* arbitrary */ #define EHCI_IO_JIFFIES (HZ/10) /* io watchdog > irq_thresh */ #define EHCI_ASYNC_JIFFIES (HZ/20) /* async idle timeout */ -#define EHCI_SHRINK_JIFFIES (HZ/200) /* async qh unlink delay */ +#define EHCI_SHRINK_FRAMES 5 /* async qh unlink delay */ /* Initial IRQ latency: faster than hw default */ static int log2_irq_thresh = 0; // 0 to 6 diff --git a/drivers/usb/host/ehci-ixp4xx.c b/drivers/usb/host/ehci-ixp4xx.c index 9d042f220097..f9575c409124 100644 --- a/drivers/usb/host/ehci-ixp4xx.c +++ b/drivers/usb/host/ehci-ixp4xx.c @@ -77,12 +77,12 @@ static int ixp4xx_ehci_probe(struct platform_device *pdev) if (!res) { dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); return -ENODEV; } irq = res->start; - hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { retval = -ENOMEM; goto fail_create_hcd; @@ -92,7 +92,7 @@ static int ixp4xx_ehci_probe(struct platform_device *pdev) if (!res) { dev_err(&pdev->dev, "Found HC with no register addr. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); retval = -ENODEV; goto fail_request_resource; } @@ -126,7 +126,7 @@ fail_ioremap: fail_request_resource: usb_put_hcd(hcd); fail_create_hcd: - dev_err(&pdev->dev, "init %s fail, %d\n", pdev->dev.bus_id, retval); + dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval); return retval; } diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index ab625f0ba1d9..5fbdc14e63b3 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -204,7 +204,7 @@ static int __init ehci_orion_drv_probe(struct platform_device *pdev) if (irq <= 0) { dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); err = -ENODEV; goto err1; } @@ -213,7 +213,7 @@ static int __init ehci_orion_drv_probe(struct platform_device *pdev) if (!res) { dev_err(&pdev->dev, "Found HC with no register addr. Check %s setup!\n", - pdev->dev.bus_id); + dev_name(&pdev->dev)); err = -ENODEV; goto err1; } @@ -233,7 +233,7 @@ static int __init ehci_orion_drv_probe(struct platform_device *pdev) } hcd = usb_create_hcd(&ehci_orion_hc_driver, - &pdev->dev, pdev->dev.bus_id); + &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { err = -ENOMEM; goto err3; @@ -276,7 +276,7 @@ err2: release_mem_region(res->start, res->end - res->start + 1); err1: dev_err(&pdev->dev, "init %s fail, %d\n", - pdev->dev.bus_id, err); + dev_name(&pdev->dev), err); return err; } diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 37e6abeb794c..0eba894bcb01 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -128,7 +128,7 @@ static int ps3_ehci_probe(struct ps3_system_bus_device *dev) dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ - hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev->core.bus_id); + hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core)); if (!hcd) { dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index b85b54160cda..2622b6596d7c 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -1116,8 +1116,7 @@ static void scan_async (struct ehci_hcd *ehci) struct ehci_qh *qh; enum ehci_timer_action action = TIMER_IO_WATCHDOG; - if (!++(ehci->stamp)) - ehci->stamp++; + ehci->stamp = ehci_readl(ehci, &ehci->regs->frame_index); timer_action_done (ehci, TIMER_ASYNC_SHRINK); rescan: qh = ehci->async->qh_next.qh; @@ -1142,18 +1141,20 @@ rescan: } } - /* unlink idle entries, reducing HC PCI usage as well + /* unlink idle entries, reducing DMA usage as well * as HCD schedule-scanning costs. delay for any qh * we just scanned, there's a not-unusual case that it * doesn't stay idle for long. * (plus, avoids some kind of re-activation race.) */ - if (list_empty (&qh->qtd_list)) { - if (qh->stamp == ehci->stamp) + if (list_empty(&qh->qtd_list) + && qh->qh_state == QH_STATE_LINKED) { + if (!ehci->reclaim + && ((ehci->stamp - qh->stamp) & 0x1fff) + >= (EHCI_SHRINK_FRAMES * 8)) + start_unlink_async(ehci, qh); + else action = TIMER_ASYNC_SHRINK; - else if (!ehci->reclaim - && qh->qh_state == QH_STATE_LINKED) - start_unlink_async (ehci, qh); } qh = qh->qh_next.qh; diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 35a03095757e..5799298364fb 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -177,6 +177,15 @@ timer_action_done (struct ehci_hcd *ehci, enum ehci_timer_action action) static inline void timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) { + /* Don't override timeouts which shrink or (later) disable + * the async ring; just the I/O watchdog. Note that if a + * SHRINK were pending, OFF would never be requested. + */ + if (timer_pending(&ehci->watchdog) + && ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF)) + & ehci->actions)) + return; + if (!test_and_set_bit (action, &ehci->actions)) { unsigned long t; @@ -189,18 +198,13 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) break; // case TIMER_ASYNC_SHRINK: default: - t = EHCI_SHRINK_JIFFIES; + /* add a jiffie since we synch against the + * 8 KHz uframe counter. + */ + t = DIV_ROUND_UP(EHCI_SHRINK_FRAMES * HZ, 1000) + 1; break; } - t += jiffies; - // all timings except IAA watchdog can be overridden. - // async queue SHRINK often precedes IAA. while it's ready - // to go OFF neither can matter, and afterwards the IO - // watchdog stops unless there's still periodic traffic. - if (time_before_eq(t, ehci->watchdog.expires) - && timer_pending (&ehci->watchdog)) - return; - mod_timer (&ehci->watchdog, t); + mod_timer(&ehci->watchdog, t + jiffies); } } diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c new file mode 100644 index 000000000000..a811c482b949 --- /dev/null +++ b/drivers/usb/host/hwa-hc.c @@ -0,0 +1,935 @@ +/* + * Host Wire Adapter: + * Driver glue, HWA-specific functions, bridges to WAHC and WUSBHC + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * The HWA driver is a simple layer that forwards requests to the WAHC + * (Wire Adater Host Controller) or WUSBHC (Wireless USB Host + * Controller) layers. + * + * Host Wire Adapter is the 'WUSB 1.0 standard' name for Wireless-USB + * Host Controller that is connected to your system via USB (a USB + * dongle that implements a USB host...). There is also a Device Wired + * Adaptor, DWA (Wireless USB hub) that uses the same mechanism for + * transferring data (it is after all a USB host connected via + * Wireless USB), we have a common layer called Wire Adapter Host + * Controller that does all the hard work. The WUSBHC (Wireless USB + * Host Controller) is the part common to WUSB Host Controllers, the + * HWA and the PCI-based one, that is implemented following the WHCI + * spec. All these layers are implemented in ../wusbcore. + * + * The main functions are hwahc_op_urb_{en,de}queue(), that pass the + * job of converting a URB to a Wire Adapter + * + * Entry points: + * + * hwahc_driver_*() Driver initialization, registration and + * teardown. + * + * hwahc_probe() New device came up, create an instance for + * it [from device enumeration]. + * + * hwahc_disconnect() Remove device instance [from device + * enumeration]. + * + * [__]hwahc_op_*() Host-Wire-Adaptor specific functions for + * starting/stopping/etc (some might be made also + * DWA). + */ +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/workqueue.h> +#include <linux/wait.h> +#include <linux/completion.h> +#include "../wusbcore/wa-hc.h" +#include "../wusbcore/wusbhc.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +struct hwahc { + struct wusbhc wusbhc; /* has to be 1st */ + struct wahc wa; + u8 buffer[16]; /* for misc usb transactions */ +}; + +/** + * FIXME should be wusbhc + * + * NOTE: we need to cache the Cluster ID because later...there is no + * way to get it :) + */ +static int __hwahc_set_cluster_id(struct hwahc *hwahc, u8 cluster_id) +{ + int result; + struct wusbhc *wusbhc = &hwahc->wusbhc; + struct wahc *wa = &hwahc->wa; + struct device *dev = &wa->usb_iface->dev; + + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_CLUSTER_ID, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + cluster_id, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "Cannot set WUSB Cluster ID to 0x%02x: %d\n", + cluster_id, result); + else + wusbhc->cluster_id = cluster_id; + dev_info(dev, "Wireless USB Cluster ID set to 0x%02x\n", cluster_id); + return result; +} + +static int __hwahc_op_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_NUM_DNTS, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + interval << 8 | slots, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); +} + +/* + * Reset a WUSB host controller and wait for it to complete doing it. + * + * @usb_hcd: Pointer to WUSB Host Controller instance. + * + */ +static int hwahc_op_reset(struct usb_hcd *usb_hcd) +{ + int result; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + mutex_lock(&wusbhc->mutex); + wa_nep_disarm(&hwahc->wa); + result = __wa_set_feature(&hwahc->wa, WA_RESET); + if (result < 0) { + dev_err(dev, "error commanding HC to reset: %d\n", result); + goto error_unlock; + } + d_printf(3, dev, "reset: waiting for device to change state\n"); + result = __wa_wait_status(&hwahc->wa, WA_STATUS_RESETTING, 0); + if (result < 0) { + dev_err(dev, "error waiting for HC to reset: %d\n", result); + goto error_unlock; + } +error_unlock: + mutex_unlock(&wusbhc->mutex); + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return result; +} + +/* + * FIXME: break this function up + */ +static int hwahc_op_start(struct usb_hcd *usb_hcd) +{ + u8 addr; + int result; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + /* Set up a Host Info WUSB Information Element */ + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + result = -ENOSPC; + mutex_lock(&wusbhc->mutex); + /* Start the numbering from the top so that the bottom + * range of the unauth addr space is used for devices, + * the top for HCs; use 0xfe - RC# */ + addr = wusb_cluster_id_get(); + if (addr == 0) + goto error_cluster_id_get; + result = __hwahc_set_cluster_id(hwahc, addr); + if (result < 0) + goto error_set_cluster_id; + + result = wa_nep_arm(&hwahc->wa, GFP_KERNEL); + if (result < 0) { + dev_err(dev, "cannot listen to notifications: %d\n", result); + goto error_stop; + } + usb_hcd->uses_new_polling = 1; + usb_hcd->poll_rh = 1; + usb_hcd->state = HC_STATE_RUNNING; + result = 0; +out: + mutex_unlock(&wusbhc->mutex); + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return result; + +error_stop: + __wa_stop(&hwahc->wa); +error_set_cluster_id: + wusb_cluster_id_put(wusbhc->cluster_id); +error_cluster_id_get: + goto out; + +} + +/* + * FIXME: break this function up + */ +static int __hwahc_op_wusbhc_start(struct wusbhc *wusbhc) +{ + int result; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + /* Set up a Host Info WUSB Information Element */ + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + result = -ENOSPC; + + result = __wa_set_feature(&hwahc->wa, WA_ENABLE); + if (result < 0) { + dev_err(dev, "error commanding HC to start: %d\n", result); + goto error_stop; + } + result = __wa_wait_status(&hwahc->wa, WA_ENABLE, WA_ENABLE); + if (result < 0) { + dev_err(dev, "error waiting for HC to start: %d\n", result); + goto error_stop; + } + result = 0; +out: + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return result; + +error_stop: + result = __wa_clear_feature(&hwahc->wa, WA_ENABLE); + goto out; +} + +static int hwahc_op_suspend(struct usb_hcd *usb_hcd, pm_message_t msg) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + dev_err(wusbhc->dev, "%s (%p [%p], 0x%lx) UNIMPLEMENTED\n", __func__, + usb_hcd, hwahc, *(unsigned long *) &msg); + return -ENOSYS; +} + +static int hwahc_op_resume(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, hwahc); + return -ENOSYS; +} + +static void __hwahc_op_wusbhc_stop(struct wusbhc *wusbhc) +{ + int result; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct device *dev = &hwahc->wa.usb_iface->dev; + + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + /* Nothing for now */ + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return; +} + +/* + * No need to abort pipes, as when this is called, all the children + * has been disconnected and that has done it [through + * usb_disable_interface() -> usb_disable_endpoint() -> + * hwahc_op_ep_disable() - >rpipe_ep_disable()]. + */ +static void hwahc_op_stop(struct usb_hcd *usb_hcd) +{ + int result; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + struct device *dev = &wa->usb_iface->dev; + + d_fnstart(4, dev, "(hwahc %p)\n", hwahc); + mutex_lock(&wusbhc->mutex); + wusbhc_stop(wusbhc); + wa_nep_disarm(&hwahc->wa); + result = __wa_stop(&hwahc->wa); + wusb_cluster_id_put(wusbhc->cluster_id); + mutex_unlock(&wusbhc->mutex); + d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result); + return; +} + +static int hwahc_op_get_frame_number(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, hwahc); + return -ENOSYS; +} + +static int hwahc_op_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, + gfp_t gfp) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + return wa_urb_enqueue(&hwahc->wa, urb->ep, urb, gfp); +} + +static int hwahc_op_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, + int status) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + return wa_urb_dequeue(&hwahc->wa, urb); +} + +/* + * Release resources allocated for an endpoint + * + * If there is an associated rpipe to this endpoint, go ahead and put it. + */ +static void hwahc_op_endpoint_disable(struct usb_hcd *usb_hcd, + struct usb_host_endpoint *ep) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + rpipe_ep_disable(&hwahc->wa, ep); +} + +/* + * Set the UWB MAS allocation for the WUSB cluster + * + * @stream_index: stream to use (-1 for cancelling the allocation) + * @mas: mas bitmap to use + */ +static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index, + const struct uwb_mas_bm *mas) +{ + int result; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + struct device *dev = &wa->usb_iface->dev; + u8 mas_le[UWB_NUM_MAS/8]; + + /* Set the stream index */ + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_STREAM_IDX, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + stream_index, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Cannot set WUSB stream index: %d\n", result); + goto out; + } + uwb_mas_bm_copy_le(mas_le, mas); + /* Set the MAS allocation */ + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_WUSB_MAS, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + mas_le, 32, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result); +out: + return result; +} + +/* + * Add an IE to the host's MMC + * + * @interval: See WUSB1.0[8.5.3.1] + * @repeat_cnt: See WUSB1.0[8.5.3.1] + * @handle: See WUSB1.0[8.5.3.1] + * @wuie: Pointer to the header of the WUSB IE data to add. + * MUST BE allocated in a kmalloc buffer (no stack or + * vmalloc). + * + * NOTE: the format of the WUSB IEs for MMCs are different to the + * normal MBOA MAC IEs (IE Id + Length in MBOA MAC vs. Length + + * Id in WUSB IEs). Standards...you gotta love'em. + */ +static int __hwahc_op_mmcie_add(struct wusbhc *wusbhc, u8 interval, + u8 repeat_cnt, u8 handle, + struct wuie_hdr *wuie) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_ADD_MMC_IE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + interval << 8 | repeat_cnt, + handle << 8 | iface_no, + wuie, wuie->bLength, 1000 /* FIXME: arbitrary */); +} + +/* + * Remove an IE to the host's MMC + * + * @handle: See WUSB1.0[8.5.3.1] + */ +static int __hwahc_op_mmcie_rm(struct wusbhc *wusbhc, u8 handle) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_REMOVE_MMC_IE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, handle << 8 | iface_no, + NULL, 0, 1000 /* FIXME: arbitrary */); +} + +/* + * Update device information for a given fake port + * + * @port_idx: Fake port to which device is connected (wusbhc index, not + * USB port number). + */ +static int __hwahc_op_dev_info_set(struct wusbhc *wusbhc, + struct wusb_dev *wusb_dev) +{ + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + struct hwa_dev_info *dev_info; + int ret; + + /* fill out the Device Info buffer and send it */ + dev_info = kzalloc(sizeof(struct hwa_dev_info), GFP_KERNEL); + if (!dev_info) + return -ENOMEM; + uwb_mas_bm_copy_le(dev_info->bmDeviceAvailability, + &wusb_dev->availability); + dev_info->bDeviceAddress = wusb_dev->addr; + + /* + * If the descriptors haven't been read yet, use a default PHY + * rate of 53.3 Mbit/s only. The correct value will be used + * when this will be called again as part of the + * authentication process (which occurs after the descriptors + * have been read). + */ + if (wusb_dev->wusb_cap_descr) + dev_info->wPHYRates = wusb_dev->wusb_cap_descr->wPHYRates; + else + dev_info->wPHYRates = cpu_to_le16(USB_WIRELESS_PHY_53); + + ret = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + WUSB_REQ_SET_DEV_INFO, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, wusb_dev->port_idx << 8 | iface_no, + dev_info, sizeof(struct hwa_dev_info), + 1000 /* FIXME: arbitrary */); + kfree(dev_info); + return ret; +} + +/* + * Set host's idea of which encryption (and key) method to use when + * talking to ad evice on a given port. + * + * If key is NULL, it means disable encryption for that "virtual port" + * (used when we disconnect). + */ +static int __hwahc_dev_set_key(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *key, size_t key_size, + union wusb_key_index key_idx) +{ + int result = -ENOMEM; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + struct usb_key_descriptor *keyd; + size_t keyd_len; + + keyd_len = sizeof(*keyd) + key_size; + keyd = kzalloc(keyd_len, GFP_KERNEL); + if (keyd == NULL) + return -ENOMEM; + + keyd->bLength = keyd_len; + keyd->bDescriptorType = USB_DT_KEY; + keyd->tTKID[0] = (tkid >> 0) & 0xff; + keyd->tTKID[1] = (tkid >> 8) & 0xff; + keyd->tTKID[2] = (tkid >> 16) & 0xff; + memcpy(keyd->bKeyData, key, key_size); + + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_SET_DESCRIPTOR, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + USB_DT_KEY << 8 | key_idx.value, + port_idx << 8 | iface_no, + keyd, keyd_len, 1000 /* FIXME: arbitrary */); + + memset(keyd, 0, sizeof(*keyd)); /* clear keys etc. */ + kfree(keyd); + return result; +} + +/* + * Set host's idea of which encryption (and key) method to use when + * talking to ad evice on a given port. + * + * If key is NULL, it means disable encryption for that "virtual port" + * (used when we disconnect). + */ +static int __hwahc_op_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *key, size_t key_size) +{ + int result = -ENOMEM; + struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; + u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber; + u8 encryption_value; + + /* Tell the host which key to use to talk to the device */ + if (key) { + union wusb_key_index key_idx = { .value = 0, }; + + key_idx.index = 0; + key_idx.type = WUSB_KEY_INDEX_TYPE_PTK; + key_idx.originator = WUSB_KEY_INDEX_ORIGINATOR_HOST; + + result = __hwahc_dev_set_key(wusbhc, port_idx, tkid, + key, key_size, key_idx); + if (result < 0) + goto error_set_key; + encryption_value = wusbhc->ccm1_etd->bEncryptionValue; + } else { + /* FIXME: this should come from wusbhc->etd[UNSECURE].value */ + encryption_value = 0; + } + + /* Set the encryption type for commmunicating with the device */ + result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_SET_ENCRYPTION, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + encryption_value, port_idx << 8 | iface_no, + NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(wusbhc->dev, "Can't set host's WUSB encryption for " + "port index %u to %s (value %d): %d\n", port_idx, + wusb_et_name(wusbhc->ccm1_etd->bEncryptionType), + wusbhc->ccm1_etd->bEncryptionValue, result); +error_set_key: + return result; +} + +/* + * Set host's GTK key + */ +static int __hwahc_op_set_gtk(struct wusbhc *wusbhc, u32 tkid, + const void *key, size_t key_size) +{ + union wusb_key_index key_idx = { .value = 0, }; + int result; + + key_idx.index = 0; + key_idx.type = WUSB_KEY_INDEX_TYPE_GTK; + key_idx.originator = WUSB_KEY_INDEX_ORIGINATOR_HOST; + + result = __hwahc_dev_set_key(wusbhc, 0, tkid, + key, key_size, key_idx); + + return result; +} + +/* + * Get the Wire Adapter class-specific descriptor + * + * NOTE: this descriptor comes with the big bundled configuration + * descriptor that includes the interfaces' and endpoints', so + * we just look for it in the cached copy kept by the USB stack. + * + * NOTE2: We convert LE fields to CPU order. + */ +static int wa_fill_descr(struct wahc *wa) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + char *itr; + struct usb_device *usb_dev = wa->usb_dev; + struct usb_descriptor_header *hdr; + struct usb_wa_descriptor *wa_descr; + size_t itr_size, actconfig_idx; + + actconfig_idx = (usb_dev->actconfig - usb_dev->config) / + sizeof(usb_dev->config[0]); + itr = usb_dev->rawdescriptors[actconfig_idx]; + itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength); + while (itr_size >= sizeof(*hdr)) { + hdr = (struct usb_descriptor_header *) itr; + d_printf(3, dev, "Extra device descriptor: " + "type %02x/%u bytes @ %zu (%zu left)\n", + hdr->bDescriptorType, hdr->bLength, + (itr - usb_dev->rawdescriptors[actconfig_idx]), + itr_size); + if (hdr->bDescriptorType == USB_DT_WIRE_ADAPTER) + goto found; + itr += hdr->bLength; + itr_size -= hdr->bLength; + } + dev_err(dev, "cannot find Wire Adapter Class descriptor\n"); + return -ENODEV; + +found: + result = -EINVAL; + if (hdr->bLength > itr_size) { /* is it available? */ + dev_err(dev, "incomplete Wire Adapter Class descriptor " + "(%zu bytes left, %u needed)\n", + itr_size, hdr->bLength); + goto error; + } + if (hdr->bLength < sizeof(*wa->wa_descr)) { + dev_err(dev, "short Wire Adapter Class descriptor\n"); + goto error; + } + wa->wa_descr = wa_descr = (struct usb_wa_descriptor *) hdr; + /* Make LE fields CPU order */ + wa_descr->bcdWAVersion = le16_to_cpu(wa_descr->bcdWAVersion); + wa_descr->wNumRPipes = le16_to_cpu(wa_descr->wNumRPipes); + wa_descr->wRPipeMaxBlock = le16_to_cpu(wa_descr->wRPipeMaxBlock); + if (wa_descr->bcdWAVersion > 0x0100) + dev_warn(dev, "Wire Adapter v%d.%d newer than groked v1.0\n", + wa_descr->bcdWAVersion & 0xff00 >> 8, + wa_descr->bcdWAVersion & 0x00ff); + result = 0; +error: + return result; +} + +static struct hc_driver hwahc_hc_driver = { + .description = "hwa-hcd", + .product_desc = "Wireless USB HWA host controller", + .hcd_priv_size = sizeof(struct hwahc) - sizeof(struct usb_hcd), + .irq = NULL, /* FIXME */ + .flags = HCD_USB2, /* FIXME */ + .reset = hwahc_op_reset, + .start = hwahc_op_start, + .pci_suspend = hwahc_op_suspend, + .pci_resume = hwahc_op_resume, + .stop = hwahc_op_stop, + .get_frame_number = hwahc_op_get_frame_number, + .urb_enqueue = hwahc_op_urb_enqueue, + .urb_dequeue = hwahc_op_urb_dequeue, + .endpoint_disable = hwahc_op_endpoint_disable, + + .hub_status_data = wusbhc_rh_status_data, + .hub_control = wusbhc_rh_control, + .bus_suspend = wusbhc_rh_suspend, + .bus_resume = wusbhc_rh_resume, + .start_port_reset = wusbhc_rh_start_port_reset, +}; + +static int hwahc_security_create(struct hwahc *hwahc) +{ + int result; + struct wusbhc *wusbhc = &hwahc->wusbhc; + struct usb_device *usb_dev = hwahc->wa.usb_dev; + struct device *dev = &usb_dev->dev; + struct usb_security_descriptor *secd; + struct usb_encryption_descriptor *etd; + void *itr, *top; + size_t itr_size, needed, bytes; + u8 index; + char buf[64]; + + /* Find the host's security descriptors in the config descr bundle */ + index = (usb_dev->actconfig - usb_dev->config) / + sizeof(usb_dev->config[0]); + itr = usb_dev->rawdescriptors[index]; + itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength); + top = itr + itr_size; + result = __usb_get_extra_descriptor(usb_dev->rawdescriptors[index], + le16_to_cpu(usb_dev->actconfig->desc.wTotalLength), + USB_DT_SECURITY, (void **) &secd); + if (result == -1) { + dev_warn(dev, "BUG? WUSB host has no security descriptors\n"); + return 0; + } + needed = sizeof(*secd); + if (top - (void *)secd < needed) { + dev_err(dev, "BUG? Not enough data to process security " + "descriptor header (%zu bytes left vs %zu needed)\n", + top - (void *) secd, needed); + return 0; + } + needed = le16_to_cpu(secd->wTotalLength); + if (top - (void *)secd < needed) { + dev_err(dev, "BUG? Not enough data to process security " + "descriptors (%zu bytes left vs %zu needed)\n", + top - (void *) secd, needed); + return 0; + } + /* Walk over the sec descriptors and store CCM1's on wusbhc */ + itr = (void *) secd + sizeof(*secd); + top = (void *) secd + le16_to_cpu(secd->wTotalLength); + index = 0; + bytes = 0; + while (itr < top) { + etd = itr; + if (top - itr < sizeof(*etd)) { + dev_err(dev, "BUG: bad host security descriptor; " + "not enough data (%zu vs %zu left)\n", + top - itr, sizeof(*etd)); + break; + } + if (etd->bLength < sizeof(*etd)) { + dev_err(dev, "BUG: bad host encryption descriptor; " + "descriptor is too short " + "(%zu vs %zu needed)\n", + (size_t)etd->bLength, sizeof(*etd)); + break; + } + itr += etd->bLength; + bytes += snprintf(buf + bytes, sizeof(buf) - bytes, + "%s (0x%02x) ", + wusb_et_name(etd->bEncryptionType), + etd->bEncryptionValue); + wusbhc->ccm1_etd = etd; + } + dev_info(dev, "supported encryption types: %s\n", buf); + if (wusbhc->ccm1_etd == NULL) { + dev_err(dev, "E: host doesn't support CCM-1 crypto\n"); + return 0; + } + /* Pretty print what we support */ + return 0; +} + +static void hwahc_security_release(struct hwahc *hwahc) +{ + /* nothing to do here so far... */ +} + +static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface) +{ + int result; + struct device *dev = &iface->dev; + struct wusbhc *wusbhc = &hwahc->wusbhc; + struct wahc *wa = &hwahc->wa; + struct usb_device *usb_dev = interface_to_usbdev(iface); + + wa->usb_dev = usb_get_dev(usb_dev); /* bind the USB device */ + wa->usb_iface = usb_get_intf(iface); + wusbhc->dev = dev; + wusbhc->uwb_rc = uwb_rc_get_by_grandpa(iface->dev.parent); + if (wusbhc->uwb_rc == NULL) { + result = -ENODEV; + dev_err(dev, "Cannot get associated UWB Host Controller\n"); + goto error_rc_get; + } + result = wa_fill_descr(wa); /* Get the device descriptor */ + if (result < 0) + goto error_fill_descriptor; + if (wa->wa_descr->bNumPorts > USB_MAXCHILDREN) { + dev_err(dev, "FIXME: USB_MAXCHILDREN too low for WUSB " + "adapter (%u ports)\n", wa->wa_descr->bNumPorts); + wusbhc->ports_max = USB_MAXCHILDREN; + } else { + wusbhc->ports_max = wa->wa_descr->bNumPorts; + } + wusbhc->mmcies_max = wa->wa_descr->bNumMMCIEs; + wusbhc->start = __hwahc_op_wusbhc_start; + wusbhc->stop = __hwahc_op_wusbhc_stop; + wusbhc->mmcie_add = __hwahc_op_mmcie_add; + wusbhc->mmcie_rm = __hwahc_op_mmcie_rm; + wusbhc->dev_info_set = __hwahc_op_dev_info_set; + wusbhc->bwa_set = __hwahc_op_bwa_set; + wusbhc->set_num_dnts = __hwahc_op_set_num_dnts; + wusbhc->set_ptk = __hwahc_op_set_ptk; + wusbhc->set_gtk = __hwahc_op_set_gtk; + result = hwahc_security_create(hwahc); + if (result < 0) { + dev_err(dev, "Can't initialize security: %d\n", result); + goto error_security_create; + } + wa->wusb = wusbhc; /* FIXME: ugly, need to fix */ + result = wusbhc_create(&hwahc->wusbhc); + if (result < 0) { + dev_err(dev, "Can't create WUSB HC structures: %d\n", result); + goto error_wusbhc_create; + } + result = wa_create(&hwahc->wa, iface); + if (result < 0) + goto error_wa_create; + return 0; + +error_wa_create: + wusbhc_destroy(&hwahc->wusbhc); +error_wusbhc_create: + /* WA Descr fill allocs no resources */ +error_security_create: +error_fill_descriptor: + uwb_rc_put(wusbhc->uwb_rc); +error_rc_get: + usb_put_intf(iface); + usb_put_dev(usb_dev); + return result; +} + +static void hwahc_destroy(struct hwahc *hwahc) +{ + struct wusbhc *wusbhc = &hwahc->wusbhc; + + d_fnstart(1, NULL, "(hwahc %p)\n", hwahc); + mutex_lock(&wusbhc->mutex); + __wa_destroy(&hwahc->wa); + wusbhc_destroy(&hwahc->wusbhc); + hwahc_security_release(hwahc); + hwahc->wusbhc.dev = NULL; + uwb_rc_put(wusbhc->uwb_rc); + usb_put_intf(hwahc->wa.usb_iface); + usb_put_dev(hwahc->wa.usb_dev); + mutex_unlock(&wusbhc->mutex); + d_fnend(1, NULL, "(hwahc %p) = void\n", hwahc); +} + +static void hwahc_init(struct hwahc *hwahc) +{ + wa_init(&hwahc->wa); +} + +static int hwahc_probe(struct usb_interface *usb_iface, + const struct usb_device_id *id) +{ + int result; + struct usb_hcd *usb_hcd; + struct wusbhc *wusbhc; + struct hwahc *hwahc; + struct device *dev = &usb_iface->dev; + + d_fnstart(4, dev, "(%p, %p)\n", usb_iface, id); + result = -ENOMEM; + usb_hcd = usb_create_hcd(&hwahc_hc_driver, &usb_iface->dev, "wusb-hwa"); + if (usb_hcd == NULL) { + dev_err(dev, "unable to allocate instance\n"); + goto error_alloc; + } + usb_hcd->wireless = 1; + usb_hcd->flags |= HCD_FLAG_SAW_IRQ; + wusbhc = usb_hcd_to_wusbhc(usb_hcd); + hwahc = container_of(wusbhc, struct hwahc, wusbhc); + hwahc_init(hwahc); + result = hwahc_create(hwahc, usb_iface); + if (result < 0) { + dev_err(dev, "Cannot initialize internals: %d\n", result); + goto error_hwahc_create; + } + result = usb_add_hcd(usb_hcd, 0, 0); + if (result < 0) { + dev_err(dev, "Cannot add HCD: %d\n", result); + goto error_add_hcd; + } + result = wusbhc_b_create(&hwahc->wusbhc); + if (result < 0) { + dev_err(dev, "Cannot setup phase B of WUSBHC: %d\n", result); + goto error_wusbhc_b_create; + } + d_fnend(4, dev, "(%p, %p) = 0\n", usb_iface, id); + return 0; + +error_wusbhc_b_create: + usb_remove_hcd(usb_hcd); +error_add_hcd: + hwahc_destroy(hwahc); +error_hwahc_create: + usb_put_hcd(usb_hcd); +error_alloc: + d_fnend(4, dev, "(%p, %p) = %d\n", usb_iface, id, result); + return result; +} + +static void hwahc_disconnect(struct usb_interface *usb_iface) +{ + struct usb_hcd *usb_hcd; + struct wusbhc *wusbhc; + struct hwahc *hwahc; + + usb_hcd = usb_get_intfdata(usb_iface); + wusbhc = usb_hcd_to_wusbhc(usb_hcd); + hwahc = container_of(wusbhc, struct hwahc, wusbhc); + + d_fnstart(1, NULL, "(hwahc %p [usb_iface %p])\n", hwahc, usb_iface); + wusbhc_b_destroy(&hwahc->wusbhc); + usb_remove_hcd(usb_hcd); + hwahc_destroy(hwahc); + usb_put_hcd(usb_hcd); + d_fnend(1, NULL, "(hwahc %p [usb_iface %p]) = void\n", hwahc, + usb_iface); +} + +/** USB device ID's that we handle */ +static struct usb_device_id hwahc_id_table[] = { + /* FIXME: use class labels for this */ + { USB_INTERFACE_INFO(0xe0, 0x02, 0x01), }, + {}, +}; +MODULE_DEVICE_TABLE(usb, hwahc_id_table); + +static struct usb_driver hwahc_driver = { + .name = "hwa-hc", + .probe = hwahc_probe, + .disconnect = hwahc_disconnect, + .id_table = hwahc_id_table, +}; + +static int __init hwahc_driver_init(void) +{ + int result; + result = usb_register(&hwahc_driver); + if (result < 0) { + printk(KERN_ERR "WA-CDS: Cannot register USB driver: %d\n", + result); + goto error_usb_register; + } + return 0; + +error_usb_register: + return result; + +} +module_init(hwahc_driver_init); + +static void __exit hwahc_driver_exit(void) +{ + usb_deregister(&hwahc_driver); +} +module_exit(hwahc_driver_exit); + + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Host Wired Adapter USB Host Control Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 20b9a0d07420..36fdb72f2288 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -68,6 +68,7 @@ #include <asm/io.h> #include <asm/irq.h> +#include <asm/unaligned.h> #include <asm/system.h> #include <asm/byteorder.h> @@ -1024,7 +1025,7 @@ static int isp116x_hub_control(struct usb_hcd *hcd, break; case GetHubStatus: DBG("GetHubStatus\n"); - *(__le32 *) buf = 0; + put_unaligned_le32(0, buf); break; case GetPortStatus: DBG("GetPortStatus\n"); @@ -1033,7 +1034,7 @@ static int isp116x_hub_control(struct usb_hcd *hcd, spin_lock_irqsave(&isp116x->lock, flags); tmp = isp116x_read_reg32(isp116x, (--wIndex) ? HCRHPORT2 : HCRHPORT1); spin_unlock_irqrestore(&isp116x->lock, flags); - *(__le32 *) buf = cpu_to_le32(tmp); + put_unaligned_le32(tmp, buf); DBG("GetPortStatus: port[%d] %08x\n", wIndex + 1, tmp); break; case ClearPortFeature: @@ -1592,7 +1593,7 @@ static int __devinit isp116x_probe(struct platform_device *pdev) } /* allocate and initialize hcd */ - hcd = usb_create_hcd(&isp116x_hc_driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(&isp116x_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { ret = -ENOMEM; goto err5; diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c index 65aa5ecf569a..c858f2adb929 100644 --- a/drivers/usb/host/isp1760-hcd.c +++ b/drivers/usb/host/isp1760-hcd.c @@ -38,6 +38,7 @@ struct isp1760_hcd { unsigned i_thresh; unsigned long reset_done; unsigned long next_statechange; + unsigned int devflags; }; static inline struct isp1760_hcd *hcd_to_priv(struct usb_hcd *hcd) @@ -378,9 +379,31 @@ static int isp1760_hc_setup(struct usb_hcd *hcd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); int result; - u32 scratch; + u32 scratch, hwmode; + + /* Setup HW Mode Control: This assumes a level active-low interrupt */ + hwmode = HW_DATA_BUS_32BIT; + + if (priv->devflags & ISP1760_FLAG_BUS_WIDTH_16) + hwmode &= ~HW_DATA_BUS_32BIT; + if (priv->devflags & ISP1760_FLAG_ANALOG_OC) + hwmode |= HW_ANA_DIGI_OC; + if (priv->devflags & ISP1760_FLAG_DACK_POL_HIGH) + hwmode |= HW_DACK_POL_HIGH; + if (priv->devflags & ISP1760_FLAG_DREQ_POL_HIGH) + hwmode |= HW_DREQ_POL_HIGH; + + /* + * We have to set this first in case we're in 16-bit mode. + * Write it twice to ensure correct upper bits if switching + * to 16-bit mode. + */ + isp1760_writel(hwmode, hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(hwmode, hcd->regs + HC_HW_MODE_CTRL); isp1760_writel(0xdeadbabe, hcd->regs + HC_SCRATCH_REG); + /* Change bus pattern */ + scratch = isp1760_readl(hcd->regs + HC_CHIP_ID_REG); scratch = isp1760_readl(hcd->regs + HC_SCRATCH_REG); if (scratch != 0xdeadbabe) { printk(KERN_ERR "ISP1760: Scratch test failed.\n"); @@ -403,17 +426,29 @@ static int isp1760_hc_setup(struct usb_hcd *hcd) /* Step 11 passed */ - isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_REG); - isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_ENABLE); + isp1760_info(priv, "bus width: %d, oc: %s\n", + (priv->devflags & ISP1760_FLAG_BUS_WIDTH_16) ? + 16 : 32, (priv->devflags & ISP1760_FLAG_ANALOG_OC) ? + "analog" : "digital"); /* ATL reset */ - scratch = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL); - isp1760_writel(scratch | ALL_ATX_RESET, hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(hwmode | ALL_ATX_RESET, hcd->regs + HC_HW_MODE_CTRL); mdelay(10); - isp1760_writel(scratch, hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(hwmode, hcd->regs + HC_HW_MODE_CTRL); - isp1760_writel(PORT1_POWER | PORT1_INIT2, hcd->regs + HC_PORT1_CTRL); - mdelay(10); + isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_REG); + isp1760_writel(INTERRUPT_ENABLE_MASK, hcd->regs + HC_INTERRUPT_ENABLE); + + /* + * PORT 1 Control register of the ISP1760 is the OTG control + * register on ISP1761. + */ + if (!(priv->devflags & ISP1760_FLAG_ISP1761) && + !(priv->devflags & ISP1760_FLAG_PORT1_DIS)) { + isp1760_writel(PORT1_POWER | PORT1_INIT2, + hcd->regs + HC_PORT1_CTRL); + mdelay(10); + } priv->hcs_params = isp1760_readl(hcd->regs + HC_HCSPARAMS); @@ -453,8 +488,7 @@ static int isp1760_run(struct usb_hcd *hcd) hcd->state = HC_STATE_RUNNING; isp1760_enable_interrupts(hcd); temp = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL); - temp |= FINAL_HW_CONFIG; - isp1760_writel(temp, hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(temp | HW_GLOBAL_INTR_EN, hcd->regs + HC_HW_MODE_CTRL); command = isp1760_readl(hcd->regs + HC_USBCMD); command &= ~(CMD_LRESET|CMD_RESET); @@ -782,8 +816,8 @@ static void enqueue_one_int_qtd(u32 int_regs, u32 payload, qtd->status |= slot << 16; } -void enqueue_an_ATL_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, - struct isp1760_qtd *qtd) +static void enqueue_an_ATL_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, + struct isp1760_qtd *qtd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); u32 skip_map, or_map; @@ -816,8 +850,8 @@ void enqueue_an_ATL_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, isp1760_writel(buffstatus, hcd->regs + HC_BUFFER_STATUS_REG); } -void enqueue_an_INT_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, - struct isp1760_qtd *qtd) +static void enqueue_an_INT_packet(struct usb_hcd *hcd, struct isp1760_qh *qh, + struct isp1760_qtd *qtd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); u32 skip_map, or_map; @@ -1592,7 +1626,7 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, struct inter_packet_info *ints; u32 i; u32 reg_base, or_reg, skip_reg; - int flags; + unsigned long flags; struct ptd ptd; switch (usb_pipetype(urb->pipe)) { @@ -2061,7 +2095,7 @@ static void isp1760_endpoint_disable(struct usb_hcd *usb_hcd, struct isp1760_hcd *priv = hcd_to_priv(usb_hcd); struct isp1760_qh *qh; struct isp1760_qtd *qtd; - u32 flags; + unsigned long flags; spin_lock_irqsave(&priv->lock, flags); qh = ep->hcpriv; @@ -2112,6 +2146,7 @@ static int isp1760_get_frame(struct usb_hcd *hcd) static void isp1760_stop(struct usb_hcd *hcd) { struct isp1760_hcd *priv = hcd_to_priv(hcd); + u32 temp; isp1760_hub_control(hcd, ClearPortFeature, USB_PORT_FEAT_POWER, 1, NULL, 0); @@ -2120,7 +2155,8 @@ static void isp1760_stop(struct usb_hcd *hcd) spin_lock_irq(&priv->lock); ehci_reset(priv); /* Disable IRQ */ - isp1760_writel(HW_DATA_BUS_32BIT, hcd->regs + HC_HW_MODE_CTRL); + temp = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(temp &= ~HW_GLOBAL_INTR_EN, hcd->regs + HC_HW_MODE_CTRL); spin_unlock_irq(&priv->lock); isp1760_writel(0, hcd->regs + HC_CONFIGFLAG); @@ -2128,10 +2164,11 @@ static void isp1760_stop(struct usb_hcd *hcd) static void isp1760_shutdown(struct usb_hcd *hcd) { - u32 command; + u32 command, temp; isp1760_stop(hcd); - isp1760_writel(HW_DATA_BUS_32BIT, hcd->regs + HC_HW_MODE_CTRL); + temp = isp1760_readl(hcd->regs + HC_HW_MODE_CTRL); + isp1760_writel(temp &= ~HW_GLOBAL_INTR_EN, hcd->regs + HC_HW_MODE_CTRL); command = isp1760_readl(hcd->regs + HC_USBCMD); command &= ~CMD_RUN; @@ -2183,7 +2220,8 @@ void deinit_kmem_cache(void) } struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq, - u64 irqflags, struct device *dev, const char *busname) + u64 irqflags, struct device *dev, const char *busname, + unsigned int devflags) { struct usb_hcd *hcd; struct isp1760_hcd *priv; @@ -2195,11 +2233,12 @@ struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq, /* prevent usb-core allocating DMA pages */ dev->dma_mask = NULL; - hcd = usb_create_hcd(&isp1760_hc_driver, dev, dev->bus_id); + hcd = usb_create_hcd(&isp1760_hc_driver, dev, dev_name(dev)); if (!hcd) return ERR_PTR(-ENOMEM); priv = hcd_to_priv(hcd); + priv->devflags = devflags; init_memory(priv); hcd->regs = ioremap(res_start, res_len); if (!hcd->regs) { diff --git a/drivers/usb/host/isp1760-hcd.h b/drivers/usb/host/isp1760-hcd.h index 3d86d0f6b147..6473dd86993c 100644 --- a/drivers/usb/host/isp1760-hcd.h +++ b/drivers/usb/host/isp1760-hcd.h @@ -3,7 +3,8 @@ /* exports for if */ struct usb_hcd *isp1760_register(u64 res_start, u64 res_len, int irq, - u64 irqflags, struct device *dev, const char *busname); + u64 irqflags, struct device *dev, const char *busname, + unsigned int devflags); int init_kmem_once(void); void deinit_kmem_cache(void); @@ -31,6 +32,7 @@ void deinit_kmem_cache(void); /* Configuration Register */ #define HC_HW_MODE_CTRL 0x300 #define ALL_ATX_RESET (1 << 31) +#define HW_ANA_DIGI_OC (1 << 15) #define HW_DATA_BUS_32BIT (1 << 8) #define HW_DACK_POL_HIGH (1 << 6) #define HW_DREQ_POL_HIGH (1 << 5) @@ -56,13 +58,14 @@ void deinit_kmem_cache(void); #define PORT1_POWER (3 << 3) #define PORT1_INIT1 (1 << 7) #define PORT1_INIT2 (1 << 23) +#define HW_OTG_CTRL_SET 0x374 +#define HW_OTG_CTRL_CLR 0x376 /* Interrupt Register */ #define HC_INTERRUPT_REG 0x310 #define HC_INTERRUPT_ENABLE 0x314 #define INTERRUPT_ENABLE_MASK (HC_INTL_INT | HC_ATL_INT | HC_EOT_INT) -#define FINAL_HW_CONFIG (HW_GLOBAL_INTR_EN | HW_DATA_BUS_32BIT) #define HC_ISO_INT (1 << 9) #define HC_ATL_INT (1 << 8) @@ -122,6 +125,19 @@ typedef void (packet_enqueue)(struct usb_hcd *hcd, struct isp1760_qh *qh, #define isp1760_err(priv, fmt, args...) \ dev_err(priv_to_hcd(priv)->self.controller, fmt, ##args) +/* + * Device flags that can vary from board to board. All of these + * indicate the most "atypical" case, so that a devflags of 0 is + * a sane default configuration. + */ +#define ISP1760_FLAG_PORT1_DIS 0x00000001 /* Port 1 disabled */ +#define ISP1760_FLAG_BUS_WIDTH_16 0x00000002 /* 16-bit data bus width */ +#define ISP1760_FLAG_OTG_EN 0x00000004 /* Port 1 supports OTG */ +#define ISP1760_FLAG_ANALOG_OC 0x00000008 /* Analog overcurrent */ +#define ISP1760_FLAG_DACK_POL_HIGH 0x00000010 /* DACK active high */ +#define ISP1760_FLAG_DREQ_POL_HIGH 0x00000020 /* DREQ active high */ +#define ISP1760_FLAG_ISP1761 0x00000040 /* Chip is ISP1761 */ + /* chip memory management */ struct memory_chunk { unsigned int start; diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index c9db3fe98726..051ef7b6bdc6 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -35,13 +35,15 @@ static int of_isp1760_probe(struct of_device *dev, int virq; u64 res_len; int ret; + const unsigned int *prop; + unsigned int devflags = 0; ret = of_address_to_resource(dp, 0, &memory); if (ret) return -ENXIO; res = request_mem_region(memory.start, memory.end - memory.start + 1, - dev->dev.bus_id); + dev_name(&dev->dev)); if (!res) return -EBUSY; @@ -55,8 +57,32 @@ static int of_isp1760_probe(struct of_device *dev, virq = irq_create_of_mapping(oirq.controller, oirq.specifier, oirq.size); + if (of_device_is_compatible(dp, "nxp,usb-isp1761")) + devflags |= ISP1760_FLAG_ISP1761; + + if (of_get_property(dp, "port1-disable", NULL) != NULL) + devflags |= ISP1760_FLAG_PORT1_DIS; + + /* Some systems wire up only 16 of the 32 data lines */ + prop = of_get_property(dp, "bus-width", NULL); + if (prop && *prop == 16) + devflags |= ISP1760_FLAG_BUS_WIDTH_16; + + if (of_get_property(dp, "port1-otg", NULL) != NULL) + devflags |= ISP1760_FLAG_OTG_EN; + + if (of_get_property(dp, "analog-oc", NULL) != NULL) + devflags |= ISP1760_FLAG_ANALOG_OC; + + if (of_get_property(dp, "dack-polarity", NULL) != NULL) + devflags |= ISP1760_FLAG_DACK_POL_HIGH; + + if (of_get_property(dp, "dreq-polarity", NULL) != NULL) + devflags |= ISP1760_FLAG_DREQ_POL_HIGH; + hcd = isp1760_register(memory.start, res_len, virq, - IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev->dev.bus_id); + IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev_name(&dev->dev), + devflags); if (IS_ERR(hcd)) { ret = PTR_ERR(hcd); goto release_reg; @@ -87,6 +113,9 @@ static struct of_device_id of_isp1760_match[] = { { .compatible = "nxp,usb-isp1760", }, + { + .compatible = "nxp,usb-isp1761", + }, { }, }; MODULE_DEVICE_TABLE(of, of_isp1760_match); @@ -116,6 +145,7 @@ static int __devinit isp1761_pci_probe(struct pci_dev *dev, int length; int status = 1; struct usb_hcd *hcd; + unsigned int devflags = 0; if (usb_disabled()) return -ENODEV; @@ -200,7 +230,8 @@ static int __devinit isp1761_pci_probe(struct pci_dev *dev, dev->dev.dma_mask = NULL; hcd = isp1760_register(pci_mem_phy0, length, dev->irq, - IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev->dev.bus_id); + IRQF_SHARED | IRQF_DISABLED, &dev->dev, dev_name(&dev->dev), + devflags); pci_set_drvdata(dev, hcd); if (!hcd) return 0; diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index c96db1153dcf..c411b93f239c 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -91,7 +91,7 @@ static void at91_stop_hc(struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static int usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); +static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); /* configure so an HC device and id are always provided */ /* always called with process context; sleeping is OK */ @@ -184,13 +184,14 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, * context, "rmmod" or something similar. * */ -static int usb_hcd_at91_remove(struct usb_hcd *hcd, +static void usb_hcd_at91_remove(struct usb_hcd *hcd, struct platform_device *pdev) { usb_remove_hcd(hcd); at91_stop_hc(pdev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); if (cpu_is_at91sam9261()) clk_put(hclk); @@ -199,7 +200,6 @@ static int usb_hcd_at91_remove(struct usb_hcd *hcd, fclk = iclk = hclk = NULL; dev_set_drvdata(&pdev->dev, NULL); - return 0; } /*-------------------------------------------------------------------------*/ @@ -308,7 +308,8 @@ static int ohci_hcd_at91_drv_remove(struct platform_device *pdev) } device_init_wakeup(&pdev->dev, 0); - return usb_hcd_at91_remove(platform_get_drvdata(pdev), pdev); + usb_hcd_at91_remove(platform_get_drvdata(pdev), pdev); + return 0; } #ifdef CONFIG_PM diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index e06bfaebec54..7cef1d2f7ccc 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -651,7 +651,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf) "%s\n" "%s version " DRIVER_VERSION "\n", hcd->self.controller->bus->name, - hcd->self.controller->bus_id, + dev_name(hcd->self.controller), hcd->product_desc, hcd_name); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 33f1c1c32edf..26bc47941d01 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -974,7 +974,7 @@ MODULE_LICENSE ("GPL"); #define PCI_DRIVER ohci_pci_driver #endif -#ifdef CONFIG_SA1111 +#if defined(CONFIG_ARCH_SA1100) && defined(CONFIG_SA1111) #include "ohci-sa1111.c" #define SA1111_DRIVER ohci_hcd_sa1111_driver #endif @@ -1054,7 +1054,7 @@ MODULE_LICENSE ("GPL"); #ifdef CONFIG_MFD_SM501 #include "ohci-sm501.c" -#define PLATFORM_DRIVER ohci_hcd_sm501_driver +#define SM501_OHCI_DRIVER ohci_hcd_sm501_driver #endif #if !defined(PCI_DRIVER) && \ @@ -1062,6 +1062,7 @@ MODULE_LICENSE ("GPL"); !defined(OF_PLATFORM_DRIVER) && \ !defined(SA1111_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && \ + !defined(SM501_OHCI_DRIVER) && \ !defined(SSB_OHCI_DRIVER) #error "missing bus glue for ohci-hcd" #endif @@ -1121,9 +1122,18 @@ static int __init ohci_hcd_mod_init(void) goto error_ssb; #endif +#ifdef SM501_OHCI_DRIVER + retval = platform_driver_register(&SM501_OHCI_DRIVER); + if (retval < 0) + goto error_sm501; +#endif + return retval; /* Error path */ +#ifdef SM501_OHCI_DRIVER + error_sm501: +#endif #ifdef SSB_OHCI_DRIVER error_ssb: #endif @@ -1159,6 +1169,9 @@ module_init(ohci_hcd_mod_init); static void __exit ohci_hcd_mod_exit(void) { +#ifdef SM501_OHCI_DRIVER + platform_driver_unregister(&SM501_OHCI_DRIVER); +#endif #ifdef SSB_OHCI_DRIVER ssb_driver_unregister(&SSB_OHCI_DRIVER); #endif diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 6859fb5f1d6f..1044eb18c790 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -326,7 +326,7 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, } - hcd = usb_create_hcd (driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd (driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { retval = -ENOMEM; goto err0; diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c index 664f07ee8732..c461b93a2207 100644 --- a/drivers/usb/host/ohci-pnx4008.c +++ b/drivers/usb/host/ohci-pnx4008.c @@ -388,7 +388,7 @@ static int __devinit usb_hcd_pnx4008_probe(struct platform_device *pdev) while ((__raw_readl(USB_OTG_CLK_STAT) & USB_CLOCK_MASK) != USB_CLOCK_MASK) ; - hcd = usb_create_hcd (driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd (driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { err("Failed to allocate HC buffer"); ret = -ENOMEM; diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index 50e55db13636..7ac53264ead3 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -14,8 +14,8 @@ */ #include <linux/signal.h> +#include <linux/of_platform.h> -#include <asm/of_platform.h> #include <asm/prom.h> diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c index bfdeb0d22d05..2089d8a46c4b 100644 --- a/drivers/usb/host/ohci-ps3.c +++ b/drivers/usb/host/ohci-ps3.c @@ -128,7 +128,7 @@ static int ps3_ohci_probe(struct ps3_system_bus_device *dev) dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ - hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev->core.bus_id); + hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev_name(&dev->core)); if (!hcd) { dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c index 9c9f3b59186f..6a9b4c557953 100644 --- a/drivers/usb/host/ohci-q.c +++ b/drivers/usb/host/ohci-q.c @@ -159,9 +159,6 @@ static int ed_schedule (struct ohci_hcd *ohci, struct ed *ed) { int branch; - if (ohci_to_hcd(ohci)->state == HC_STATE_QUIESCING) - return -EAGAIN; - ed->state = ED_OPER; ed->ed_prev = NULL; ed->ed_next = NULL; @@ -952,6 +949,7 @@ rescan_this: struct urb *urb; urb_priv_t *urb_priv; __hc32 savebits; + u32 tdINFO; td = list_entry (entry, struct td, td_list); urb = td->urb; @@ -966,6 +964,17 @@ rescan_this: savebits = *prev & ~cpu_to_hc32 (ohci, TD_MASK); *prev = td->hwNextTD | savebits; + /* If this was unlinked, the TD may not have been + * retired ... so manually save the data toggle. + * The controller ignores the value we save for + * control and ISO endpoints. + */ + tdINFO = hc32_to_cpup(ohci, &td->hwINFO); + if ((tdINFO & TD_T) == TD_T_DATA0) + ed->hwHeadP &= ~cpu_to_hc32(ohci, ED_C); + else if ((tdINFO & TD_T) == TD_T_DATA1) + ed->hwHeadP |= cpu_to_hc32(ohci, ED_C); + /* HC may have partly processed this TD */ td_done (ohci, urb, td); urb_priv->td_cnt++; diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c index e899a77dfb83..cff23637cfcc 100644 --- a/drivers/usb/host/ohci-sm501.c +++ b/drivers/usb/host/ohci-sm501.c @@ -142,7 +142,7 @@ static int ohci_hcd_sm501_drv_probe(struct platform_device *pdev) goto err2; } - hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { retval = -ENOMEM; goto err2; diff --git a/drivers/usb/host/ohci-ssb.c b/drivers/usb/host/ohci-ssb.c index c4265caec780..23fd6a886bdd 100644 --- a/drivers/usb/host/ohci-ssb.c +++ b/drivers/usb/host/ohci-ssb.c @@ -112,7 +112,7 @@ static int ssb_ohci_attach(struct ssb_device *dev) ssb_device_enable(dev, flags); hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev, - dev->dev->bus_id); + dev_name(dev->dev)); if (!hcd) goto err_dev_disable; ohcidev = hcd_to_ssb_ohci(hcd); diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 16667342b3c3..a93d80b56974 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -312,9 +312,9 @@ static void put_child_connect_map(struct r8a66597 *r8a66597, int address) static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch) { u16 pipenum = pipe->info.pipenum; - unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; - unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; - unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; + const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO}; + const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL}; + const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR}; if (dma_ch > R8A66597_PIPE_NO_DMA) /* dma fifo not use? */ dma_ch = R8A66597_PIPE_NO_DMA; diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 426575247b23..340d72da554a 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1674,7 +1674,7 @@ sl811h_probe(struct platform_device *dev) } /* allocate and initialize hcd */ - hcd = usb_create_hcd(&sl811h_hc_driver, &dev->dev, dev->dev.bus_id); + hcd = usb_create_hcd(&sl811h_hc_driver, &dev->dev, dev_name(&dev->dev)); if (!hcd) { retval = -ENOMEM; goto err5; diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index f29307405bb3..228f2b070f2b 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -3113,7 +3113,7 @@ static int __devinit u132_probe(struct platform_device *pdev) if (pdev->dev.dma_mask) return -EINVAL; - hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, pdev->dev.bus_id); + hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { printk(KERN_ERR "failed to create the usb hcd struct for U132\n" ); diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index 3a7bfe7a8874..d1d05d7eea16 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -42,6 +42,7 @@ #include <linux/dmi.h> #include <asm/uaccess.h> +#include <asm/unaligned.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/system.h> diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c index 8e4427aebb14..017dbc891b35 100644 --- a/drivers/usb/host/uhci-hub.c +++ b/drivers/usb/host/uhci-hub.c @@ -12,7 +12,7 @@ * (C) Copyright 2004 Alan Stern, stern@rowland.harvard.edu */ -static __u8 root_hub_hub_des[] = +static const __u8 root_hub_hub_des[] = { 0x09, /* __u8 bLength; */ 0x29, /* __u8 bDescriptorType; Hub-descriptor */ @@ -253,7 +253,7 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, switch (typeReq) { case GetHubStatus: - *(__le32 *)buf = cpu_to_le32(0); + put_unaligned_le32(0, buf); OK(4); /* hub power */ case GetPortStatus: if (port >= uhci->rh_numports) @@ -306,8 +306,8 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, dev_dbg(uhci_dev(uhci), "port %d portsc %04x,%02x\n", wIndex, status, lstatus); - *(__le16 *)buf = cpu_to_le16(wPortStatus); - *(__le16 *)(buf + 2) = cpu_to_le16(wPortChange); + put_unaligned_le16(wPortStatus, buf); + put_unaligned_le16(wPortChange, buf + 2); OK(4); case SetHubFeature: /* We don't implement these */ case ClearHubFeature: diff --git a/drivers/usb/host/whci/Kbuild b/drivers/usb/host/whci/Kbuild new file mode 100644 index 000000000000..26a3871ea0f9 --- /dev/null +++ b/drivers/usb/host/whci/Kbuild @@ -0,0 +1,11 @@ +obj-$(CONFIG_USB_WHCI_HCD) += whci-hcd.o + +whci-hcd-y := \ + asl.o \ + hcd.o \ + hw.o \ + init.o \ + int.o \ + pzl.o \ + qset.o \ + wusb.o diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c new file mode 100644 index 000000000000..5b62d1feb087 --- /dev/null +++ b/drivers/usb/host/whci/asl.c @@ -0,0 +1,366 @@ +/* + * Wireless Host Controller (WHC) asynchronous schedule management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> +#include <linux/usb.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +#if D_LOCAL >= 4 +static void dump_asl(struct whc *whc, const char *tag) +{ + struct device *dev = &whc->umc->dev; + struct whc_qset *qset; + + d_printf(4, dev, "ASL %s\n", tag); + + list_for_each_entry(qset, &whc->async_list, list_node) { + dump_qset(qset, dev); + } +} +#else +static inline void dump_asl(struct whc *whc, const char *tag) +{ +} +#endif + + +static void qset_get_next_prev(struct whc *whc, struct whc_qset *qset, + struct whc_qset **next, struct whc_qset **prev) +{ + struct list_head *n, *p; + + BUG_ON(list_empty(&whc->async_list)); + + n = qset->list_node.next; + if (n == &whc->async_list) + n = n->next; + p = qset->list_node.prev; + if (p == &whc->async_list) + p = p->prev; + + *next = container_of(n, struct whc_qset, list_node); + *prev = container_of(p, struct whc_qset, list_node); + +} + +static void asl_qset_insert_begin(struct whc *whc, struct whc_qset *qset) +{ + qset_clear(whc, qset); + list_move(&qset->list_node, &whc->async_list); + qset->in_sw_list = true; +} + +static void asl_qset_insert(struct whc *whc, struct whc_qset *qset) +{ + struct whc_qset *next, *prev; + + /* Link into ASL. */ + qset_get_next_prev(whc, qset, &next, &prev); + whc_qset_set_link_ptr(&qset->qh.link, next->qset_dma); + whc_qset_set_link_ptr(&prev->qh.link, qset->qset_dma); + qset->in_hw_list = true; +} + +static void asl_qset_remove(struct whc *whc, struct whc_qset *qset) +{ + struct whc_qset *prev, *next; + + qset_get_next_prev(whc, qset, &next, &prev); + + list_move(&qset->list_node, &whc->async_removed_list); + qset->in_sw_list = false; + + /* + * No more qsets in the ASL? The caller must stop the ASL as + * it's no longer valid. + */ + if (list_empty(&whc->async_list)) + return; + + /* Remove from ASL. */ + whc_qset_set_link_ptr(&prev->qh.link, next->qset_dma); + qset->in_hw_list = false; +} + +/** + * process_qset - process any recently inactivated or halted qTDs in a + * qset. + * + * After inactive qTDs are removed, new qTDs can be added if the + * urb queue still contains URBs. + * + * Returns any additional WUSBCMD bits for the ASL sync command (i.e., + * WUSBCMD_ASYNC_QSET_RM if a halted qset was removed). + */ +static uint32_t process_qset(struct whc *whc, struct whc_qset *qset) +{ + enum whc_update update = 0; + uint32_t status = 0; + + while (qset->ntds) { + struct whc_qtd *td; + int t; + + t = qset->td_start; + td = &qset->qtd[qset->td_start]; + status = le32_to_cpu(td->status); + + /* + * Nothing to do with a still active qTD. + */ + if (status & QTD_STS_ACTIVE) + break; + + if (status & QTD_STS_HALTED) { + /* Ug, an error. */ + process_halted_qtd(whc, qset, td); + goto done; + } + + /* Mmm, a completed qTD. */ + process_inactive_qtd(whc, qset, td); + } + + update |= qset_add_qtds(whc, qset); + +done: + /* + * Remove this qset from the ASL if requested, but only if has + * no qTDs. + */ + if (qset->remove && qset->ntds == 0) { + asl_qset_remove(whc, qset); + update |= WHC_UPDATE_REMOVED; + } + return update; +} + +void asl_start(struct whc *whc) +{ + struct whc_qset *qset; + + qset = list_first_entry(&whc->async_list, struct whc_qset, list_node); + + le_writeq(qset->qset_dma | QH_LINK_NTDS(8), whc->base + WUSBASYNCLISTADDR); + + whc_write_wusbcmd(whc, WUSBCMD_ASYNC_EN, WUSBCMD_ASYNC_EN); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_ASYNC_SCHED, WUSBSTS_ASYNC_SCHED, + 1000, "start ASL"); +} + +void asl_stop(struct whc *whc) +{ + whc_write_wusbcmd(whc, WUSBCMD_ASYNC_EN, 0); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_ASYNC_SCHED, 0, + 1000, "stop ASL"); +} + +void asl_update(struct whc *whc, uint32_t wusbcmd) +{ + whc_write_wusbcmd(whc, wusbcmd, wusbcmd); + wait_event(whc->async_list_wq, + (le_readl(whc->base + WUSBCMD) & WUSBCMD_ASYNC_UPDATED) == 0); +} + +/** + * scan_async_work - scan the ASL for qsets to process. + * + * Process each qset in the ASL in turn and then signal the WHC that + * the ASL has been updated. + * + * Then start, stop or update the asynchronous schedule as required. + */ +void scan_async_work(struct work_struct *work) +{ + struct whc *whc = container_of(work, struct whc, async_work); + struct whc_qset *qset, *t; + enum whc_update update = 0; + + spin_lock_irq(&whc->lock); + + dump_asl(whc, "before processing"); + + /* + * Transerve the software list backwards so new qsets can be + * safely inserted into the ASL without making it non-circular. + */ + list_for_each_entry_safe_reverse(qset, t, &whc->async_list, list_node) { + if (!qset->in_hw_list) { + asl_qset_insert(whc, qset); + update |= WHC_UPDATE_ADDED; + } + + update |= process_qset(whc, qset); + } + + dump_asl(whc, "after processing"); + + spin_unlock_irq(&whc->lock); + + if (update) { + uint32_t wusbcmd = WUSBCMD_ASYNC_UPDATED | WUSBCMD_ASYNC_SYNCED_DB; + if (update & WHC_UPDATE_REMOVED) + wusbcmd |= WUSBCMD_ASYNC_QSET_RM; + asl_update(whc, wusbcmd); + } + + /* + * Now that the ASL is updated, complete the removal of any + * removed qsets. + */ + spin_lock(&whc->lock); + + list_for_each_entry_safe(qset, t, &whc->async_removed_list, list_node) { + qset_remove_complete(whc, qset); + } + + spin_unlock(&whc->lock); +} + +/** + * asl_urb_enqueue - queue an URB onto the asynchronous list (ASL). + * @whc: the WHCI host controller + * @urb: the URB to enqueue + * @mem_flags: flags for any memory allocations + * + * The qset for the endpoint is obtained and the urb queued on to it. + * + * Work is scheduled to update the hardware's view of the ASL. + */ +int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) +{ + struct whc_qset *qset; + int err; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + qset = get_qset(whc, urb, GFP_ATOMIC); + if (qset == NULL) + err = -ENOMEM; + else + err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); + if (!err) { + usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb); + if (!qset->in_sw_list) + asl_qset_insert_begin(whc, qset); + } + + spin_unlock_irqrestore(&whc->lock, flags); + + if (!err) + queue_work(whc->workqueue, &whc->async_work); + + return 0; +} + +/** + * asl_urb_dequeue - remove an URB (qset) from the async list. + * @whc: the WHCI host controller + * @urb: the URB to dequeue + * @status: the current status of the URB + * + * URBs that do yet have qTDs can simply be removed from the software + * queue, otherwise the qset must be removed from the ASL so the qTDs + * can be removed. + */ +int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status) +{ + struct whc_urb *wurb = urb->hcpriv; + struct whc_qset *qset = wurb->qset; + struct whc_std *std, *t; + int ret; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + ret = usb_hcd_check_unlink_urb(&whc->wusbhc.usb_hcd, urb, status); + if (ret < 0) + goto out; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb == urb) + qset_free_std(whc, std); + else + std->qtd = NULL; /* so this std is re-added when the qset is */ + } + + asl_qset_remove(whc, qset); + wurb->status = status; + wurb->is_async = true; + queue_work(whc->workqueue, &wurb->dequeue_work); + +out: + spin_unlock_irqrestore(&whc->lock, flags); + + return ret; +} + +/** + * asl_qset_delete - delete a qset from the ASL + */ +void asl_qset_delete(struct whc *whc, struct whc_qset *qset) +{ + qset->remove = 1; + queue_work(whc->workqueue, &whc->async_work); + qset_delete(whc, qset); +} + +/** + * asl_init - initialize the asynchronous schedule list + * + * A dummy qset with no qTDs is added to the ASL to simplify removing + * qsets (no need to stop the ASL when the last qset is removed). + */ +int asl_init(struct whc *whc) +{ + struct whc_qset *qset; + + qset = qset_alloc(whc, GFP_KERNEL); + if (qset == NULL) + return -ENOMEM; + + asl_qset_insert_begin(whc, qset); + asl_qset_insert(whc, qset); + + return 0; +} + +/** + * asl_clean_up - free ASL resources + * + * The ASL is stopped and empty except for the dummy qset. + */ +void asl_clean_up(struct whc *whc) +{ + struct whc_qset *qset; + + if (!list_empty(&whc->async_list)) { + qset = list_first_entry(&whc->async_list, struct whc_qset, list_node); + list_del(&qset->list_node); + qset_free(whc, qset); + } +} diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c new file mode 100644 index 000000000000..e2017411de18 --- /dev/null +++ b/drivers/usb/host/whci/hcd.c @@ -0,0 +1,339 @@ +/* + * Wireless Host Controller (WHC) driver. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +/* + * One time initialization. + * + * Nothing to do here. + */ +static int whc_reset(struct usb_hcd *usb_hcd) +{ + return 0; +} + +/* + * Start the wireless host controller. + * + * Start device notification. + * + * Put hc into run state, set DNTS parameters. + */ +static int whc_start(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + u8 bcid; + int ret; + + mutex_lock(&wusbhc->mutex); + + le_writel(WUSBINTR_GEN_CMD_DONE + | WUSBINTR_HOST_ERR + | WUSBINTR_ASYNC_SCHED_SYNCED + | WUSBINTR_DNTS_INT + | WUSBINTR_ERR_INT + | WUSBINTR_INT, + whc->base + WUSBINTR); + + /* set cluster ID */ + bcid = wusb_cluster_id_get(); + ret = whc_set_cluster_id(whc, bcid); + if (ret < 0) + goto out; + wusbhc->cluster_id = bcid; + + /* start HC */ + whc_write_wusbcmd(whc, WUSBCMD_RUN, WUSBCMD_RUN); + + usb_hcd->uses_new_polling = 1; + usb_hcd->poll_rh = 1; + usb_hcd->state = HC_STATE_RUNNING; + +out: + mutex_unlock(&wusbhc->mutex); + return ret; +} + + +/* + * Stop the wireless host controller. + * + * Stop device notification. + * + * Wait for pending transfer to stop? Put hc into stop state? + */ +static void whc_stop(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + + mutex_lock(&wusbhc->mutex); + + wusbhc_stop(wusbhc); + + /* stop HC */ + le_writel(0, whc->base + WUSBINTR); + whc_write_wusbcmd(whc, WUSBCMD_RUN, 0); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_HCHALTED, WUSBSTS_HCHALTED, + 100, "HC to halt"); + + wusb_cluster_id_put(wusbhc->cluster_id); + + mutex_unlock(&wusbhc->mutex); +} + +static int whc_get_frame_number(struct usb_hcd *usb_hcd) +{ + /* Frame numbers are not applicable to WUSB. */ + return -ENOSYS; +} + + +/* + * Queue an URB to the ASL or PZL + */ +static int whc_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, + gfp_t mem_flags) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + int ret; + + switch (usb_pipetype(urb->pipe)) { + case PIPE_INTERRUPT: + ret = pzl_urb_enqueue(whc, urb, mem_flags); + break; + case PIPE_ISOCHRONOUS: + dev_err(&whc->umc->dev, "isochronous transfers unsupported\n"); + ret = -ENOTSUPP; + break; + case PIPE_CONTROL: + case PIPE_BULK: + default: + ret = asl_urb_enqueue(whc, urb, mem_flags); + break; + }; + + return ret; +} + +/* + * Remove a queued URB from the ASL or PZL. + */ +static int whc_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, int status) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + int ret; + + switch (usb_pipetype(urb->pipe)) { + case PIPE_INTERRUPT: + ret = pzl_urb_dequeue(whc, urb, status); + break; + case PIPE_ISOCHRONOUS: + ret = -ENOTSUPP; + break; + case PIPE_CONTROL: + case PIPE_BULK: + default: + ret = asl_urb_dequeue(whc, urb, status); + break; + }; + + return ret; +} + +/* + * Wait for all URBs to the endpoint to be completed, then delete the + * qset. + */ +static void whc_endpoint_disable(struct usb_hcd *usb_hcd, + struct usb_host_endpoint *ep) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + struct whc_qset *qset; + + qset = ep->hcpriv; + if (qset) { + ep->hcpriv = NULL; + if (usb_endpoint_xfer_bulk(&ep->desc) + || usb_endpoint_xfer_control(&ep->desc)) + asl_qset_delete(whc, qset); + else + pzl_qset_delete(whc, qset); + } +} + +static struct hc_driver whc_hc_driver = { + .description = "whci-hcd", + .product_desc = "Wireless host controller", + .hcd_priv_size = sizeof(struct whc) - sizeof(struct usb_hcd), + .irq = whc_int_handler, + .flags = HCD_USB2, + + .reset = whc_reset, + .start = whc_start, + .stop = whc_stop, + .get_frame_number = whc_get_frame_number, + .urb_enqueue = whc_urb_enqueue, + .urb_dequeue = whc_urb_dequeue, + .endpoint_disable = whc_endpoint_disable, + + .hub_status_data = wusbhc_rh_status_data, + .hub_control = wusbhc_rh_control, + .bus_suspend = wusbhc_rh_suspend, + .bus_resume = wusbhc_rh_resume, + .start_port_reset = wusbhc_rh_start_port_reset, +}; + +static int whc_probe(struct umc_dev *umc) +{ + int ret = -ENOMEM; + struct usb_hcd *usb_hcd; + struct wusbhc *wusbhc = NULL; + struct whc *whc = NULL; + struct device *dev = &umc->dev; + + usb_hcd = usb_create_hcd(&whc_hc_driver, dev, "whci"); + if (usb_hcd == NULL) { + dev_err(dev, "unable to create hcd\n"); + goto error; + } + + usb_hcd->wireless = 1; + + wusbhc = usb_hcd_to_wusbhc(usb_hcd); + whc = wusbhc_to_whc(wusbhc); + whc->umc = umc; + + ret = whc_init(whc); + if (ret) + goto error; + + wusbhc->dev = dev; + wusbhc->uwb_rc = uwb_rc_get_by_grandpa(umc->dev.parent); + if (!wusbhc->uwb_rc) { + ret = -ENODEV; + dev_err(dev, "cannot get radio controller\n"); + goto error; + } + + if (whc->n_devices > USB_MAXCHILDREN) { + dev_warn(dev, "USB_MAXCHILDREN too low for WUSB adapter (%u ports)\n", + whc->n_devices); + wusbhc->ports_max = USB_MAXCHILDREN; + } else + wusbhc->ports_max = whc->n_devices; + wusbhc->mmcies_max = whc->n_mmc_ies; + wusbhc->start = whc_wusbhc_start; + wusbhc->stop = whc_wusbhc_stop; + wusbhc->mmcie_add = whc_mmcie_add; + wusbhc->mmcie_rm = whc_mmcie_rm; + wusbhc->dev_info_set = whc_dev_info_set; + wusbhc->bwa_set = whc_bwa_set; + wusbhc->set_num_dnts = whc_set_num_dnts; + wusbhc->set_ptk = whc_set_ptk; + wusbhc->set_gtk = whc_set_gtk; + + ret = wusbhc_create(wusbhc); + if (ret) + goto error_wusbhc_create; + + ret = usb_add_hcd(usb_hcd, whc->umc->irq, IRQF_SHARED); + if (ret) { + dev_err(dev, "cannot add HCD: %d\n", ret); + goto error_usb_add_hcd; + } + + ret = wusbhc_b_create(wusbhc); + if (ret) { + dev_err(dev, "WUSBHC phase B setup failed: %d\n", ret); + goto error_wusbhc_b_create; + } + + return 0; + +error_wusbhc_b_create: + usb_remove_hcd(usb_hcd); +error_usb_add_hcd: + wusbhc_destroy(wusbhc); +error_wusbhc_create: + uwb_rc_put(wusbhc->uwb_rc); +error: + whc_clean_up(whc); + if (usb_hcd) + usb_put_hcd(usb_hcd); + return ret; +} + + +static void whc_remove(struct umc_dev *umc) +{ + struct usb_hcd *usb_hcd = dev_get_drvdata(&umc->dev); + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + + if (usb_hcd) { + wusbhc_b_destroy(wusbhc); + usb_remove_hcd(usb_hcd); + wusbhc_destroy(wusbhc); + uwb_rc_put(wusbhc->uwb_rc); + whc_clean_up(whc); + usb_put_hcd(usb_hcd); + } +} + +static struct umc_driver whci_hc_driver = { + .name = "whci-hcd", + .cap_id = UMC_CAP_ID_WHCI_WUSB_HC, + .probe = whc_probe, + .remove = whc_remove, +}; + +static int __init whci_hc_driver_init(void) +{ + return umc_driver_register(&whci_hc_driver); +} +module_init(whci_hc_driver_init); + +static void __exit whci_hc_driver_exit(void) +{ + umc_driver_unregister(&whci_hc_driver); +} +module_exit(whci_hc_driver_exit); + +/* PCI device ID's that we handle (so it gets loaded) */ +static struct pci_device_id whci_hcd_id_table[] = { + { PCI_DEVICE_CLASS(PCI_CLASS_WIRELESS_WHCI, ~0) }, + { /* empty last entry */ } +}; +MODULE_DEVICE_TABLE(pci, whci_hcd_id_table); + +MODULE_DESCRIPTION("WHCI Wireless USB host controller driver"); +MODULE_AUTHOR("Cambridge Silicon Radio Ltd."); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/whci/hw.c b/drivers/usb/host/whci/hw.c new file mode 100644 index 000000000000..22d38f23c3f0 --- /dev/null +++ b/drivers/usb/host/whci/hw.c @@ -0,0 +1,80 @@ +/* + * Wireless Host Controller (WHC) hardware access helpers. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val) +{ + unsigned long flags; + u32 cmd; + + spin_lock_irqsave(&whc->lock, flags); + + cmd = le_readl(whc->base + WUSBCMD); + cmd = (cmd & ~mask) | val; + le_writel(cmd, whc->base + WUSBCMD); + + spin_unlock_irqrestore(&whc->lock, flags); +} + +int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len) +{ + unsigned long flags; + dma_addr_t dma_addr; + int t, ret = 0; + + if (addr) + dma_addr = dma_map_single(&whc->umc->dev, addr, len, DMA_TO_DEVICE); + else + dma_addr = 0; + + mutex_lock(&whc->mutex); + + /* poke registers to start cmd */ + spin_lock_irqsave(&whc->lock, flags); + + le_writel(params, whc->base + WUSBGENCMDPARAMS); + le_writeq(dma_addr, whc->base + WUSBGENADDR); + + le_writel(WUSBGENCMDSTS_ACTIVE | WUSBGENCMDSTS_IOC | cmd, + whc->base + WUSBGENCMDSTS); + + spin_unlock_irqrestore(&whc->lock, flags); + + /* wait for command to complete */ + t = wait_event_timeout(whc->cmd_wq, + (le_readl(whc->base + WUSBGENCMDSTS) & WUSBGENCMDSTS_ACTIVE) == 0, + WHC_GENCMD_TIMEOUT_MS); + if (t == 0) { + ret = -ETIMEDOUT; + dev_err(&whc->umc->dev, "generic command timeout (%04x/%04x)\n", + cmd, params); + } + + mutex_unlock(&whc->mutex); + + if (addr) + dma_unmap_single(&whc->umc->dev, dma_addr, len, DMA_TO_DEVICE); + + return ret; +} diff --git a/drivers/usb/host/whci/init.c b/drivers/usb/host/whci/init.c new file mode 100644 index 000000000000..f1856450f841 --- /dev/null +++ b/drivers/usb/host/whci/init.c @@ -0,0 +1,181 @@ +/* + * Wireless Host Controller (WHC) initialization. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +/* + * Reset the host controller. + */ +static void whc_hw_reset(struct whc *whc) +{ + le_writel(WUSBCMD_WHCRESET, whc->base + WUSBCMD); + whci_wait_for(&whc->umc->dev, whc->base + WUSBCMD, WUSBCMD_WHCRESET, 0, + 100, "reset"); +} + +static void whc_hw_init_di_buf(struct whc *whc) +{ + int d; + + /* Disable all entries in the Device Information buffer. */ + for (d = 0; d < whc->n_devices; d++) + whc->di_buf[d].addr_sec_info = WHC_DI_DISABLE; + + le_writeq(whc->di_buf_dma, whc->base + WUSBDEVICEINFOADDR); +} + +static void whc_hw_init_dn_buf(struct whc *whc) +{ + /* Clear the Device Notification buffer to ensure the V (valid) + * bits are clear. */ + memset(whc->dn_buf, 0, 4096); + + le_writeq(whc->dn_buf_dma, whc->base + WUSBDNTSBUFADDR); +} + +int whc_init(struct whc *whc) +{ + u32 whcsparams; + int ret, i; + resource_size_t start, len; + + spin_lock_init(&whc->lock); + mutex_init(&whc->mutex); + init_waitqueue_head(&whc->cmd_wq); + init_waitqueue_head(&whc->async_list_wq); + init_waitqueue_head(&whc->periodic_list_wq); + whc->workqueue = create_singlethread_workqueue(dev_name(&whc->umc->dev)); + if (whc->workqueue == NULL) { + ret = -ENOMEM; + goto error; + } + INIT_WORK(&whc->dn_work, whc_dn_work); + + INIT_WORK(&whc->async_work, scan_async_work); + INIT_LIST_HEAD(&whc->async_list); + INIT_LIST_HEAD(&whc->async_removed_list); + + INIT_WORK(&whc->periodic_work, scan_periodic_work); + for (i = 0; i < 5; i++) + INIT_LIST_HEAD(&whc->periodic_list[i]); + INIT_LIST_HEAD(&whc->periodic_removed_list); + + /* + * Map HC registers. + */ + start = whc->umc->resource.start; + len = whc->umc->resource.end - start + 1; + if (!request_mem_region(start, len, "whci-hc")) { + dev_err(&whc->umc->dev, "can't request HC region\n"); + ret = -EBUSY; + goto error; + } + whc->base_phys = start; + whc->base = ioremap(start, len); + if (!whc->base) { + dev_err(&whc->umc->dev, "ioremap\n"); + ret = -ENOMEM; + goto error; + } + + whc_hw_reset(whc); + + /* Read maximum number of devices, keys and MMC IEs. */ + whcsparams = le_readl(whc->base + WHCSPARAMS); + whc->n_devices = WHCSPARAMS_TO_N_DEVICES(whcsparams); + whc->n_keys = WHCSPARAMS_TO_N_KEYS(whcsparams); + whc->n_mmc_ies = WHCSPARAMS_TO_N_MMC_IES(whcsparams); + + dev_dbg(&whc->umc->dev, "N_DEVICES = %d, N_KEYS = %d, N_MMC_IES = %d\n", + whc->n_devices, whc->n_keys, whc->n_mmc_ies); + + whc->qset_pool = dma_pool_create("qset", &whc->umc->dev, + sizeof(struct whc_qset), 64, 0); + if (whc->qset_pool == NULL) { + ret = -ENOMEM; + goto error; + } + + ret = asl_init(whc); + if (ret < 0) + goto error; + ret = pzl_init(whc); + if (ret < 0) + goto error; + + /* + * Allocate and initialize the Device Information buffer and + * the Device Notification buffer. + */ + + whc->dn_buf = dma_alloc_coherent(&whc->umc->dev, + sizeof(struct dn_buf_entry) * WHC_N_DN_ENTRIES, + &whc->dn_buf_dma, GFP_KERNEL); + if (!whc->dn_buf) { + ret = -ENOMEM; + goto error; + } + whc_hw_init_dn_buf(whc); + + whc->di_buf = dma_alloc_coherent(&whc->umc->dev, + sizeof(struct di_buf_entry) * whc->n_devices, + &whc->di_buf_dma, GFP_KERNEL); + if (!whc->di_buf) { + ret = -ENOMEM; + goto error; + } + whc_hw_init_di_buf(whc); + + return 0; + +error: + whc_clean_up(whc); + return ret; +} + +void whc_clean_up(struct whc *whc) +{ + resource_size_t len; + + if (whc->di_buf) + dma_free_coherent(&whc->umc->dev, sizeof(struct di_buf_entry) * whc->n_devices, + whc->di_buf, whc->di_buf_dma); + if (whc->dn_buf) + dma_free_coherent(&whc->umc->dev, sizeof(struct dn_buf_entry) * WHC_N_DN_ENTRIES, + whc->dn_buf, whc->dn_buf_dma); + + pzl_clean_up(whc); + asl_clean_up(whc); + + if (whc->qset_pool) + dma_pool_destroy(whc->qset_pool); + + len = whc->umc->resource.end - whc->umc->resource.start + 1; + if (whc->base) + iounmap(whc->base); + if (whc->base_phys) + release_mem_region(whc->base_phys, len); + + if (whc->workqueue) + destroy_workqueue(whc->workqueue); +} diff --git a/drivers/usb/host/whci/int.c b/drivers/usb/host/whci/int.c new file mode 100644 index 000000000000..fce01174aa9b --- /dev/null +++ b/drivers/usb/host/whci/int.c @@ -0,0 +1,95 @@ +/* + * Wireless Host Controller (WHC) interrupt handling. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/uwb/umc.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +static void transfer_done(struct whc *whc) +{ + queue_work(whc->workqueue, &whc->async_work); + queue_work(whc->workqueue, &whc->periodic_work); +} + +irqreturn_t whc_int_handler(struct usb_hcd *hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(hcd); + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 sts; + + sts = le_readl(whc->base + WUSBSTS); + if (!(sts & WUSBSTS_INT_MASK)) + return IRQ_NONE; + le_writel(sts & WUSBSTS_INT_MASK, whc->base + WUSBSTS); + + if (sts & WUSBSTS_GEN_CMD_DONE) + wake_up(&whc->cmd_wq); + + if (sts & WUSBSTS_HOST_ERR) + dev_err(&whc->umc->dev, "FIXME: host system error\n"); + + if (sts & WUSBSTS_ASYNC_SCHED_SYNCED) + wake_up(&whc->async_list_wq); + + if (sts & WUSBSTS_PERIODIC_SCHED_SYNCED) + wake_up(&whc->periodic_list_wq); + + if (sts & WUSBSTS_DNTS_INT) + queue_work(whc->workqueue, &whc->dn_work); + + /* + * A transfer completed (see [WHCI] section 4.7.1.2 for when + * this occurs). + */ + if (sts & (WUSBSTS_INT | WUSBSTS_ERR_INT)) + transfer_done(whc); + + return IRQ_HANDLED; +} + +static int process_dn_buf(struct whc *whc) +{ + struct wusbhc *wusbhc = &whc->wusbhc; + struct dn_buf_entry *dn; + int processed = 0; + + for (dn = whc->dn_buf; dn < whc->dn_buf + WHC_N_DN_ENTRIES; dn++) { + if (dn->status & WHC_DN_STATUS_VALID) { + wusbhc_handle_dn(wusbhc, dn->src_addr, + (struct wusb_dn_hdr *)dn->dn_data, + dn->msg_size); + dn->status &= ~WHC_DN_STATUS_VALID; + processed++; + } + } + return processed; +} + +void whc_dn_work(struct work_struct *work) +{ + struct whc *whc = container_of(work, struct whc, dn_work); + int processed; + + do { + processed = process_dn_buf(whc); + } while (processed); +} diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c new file mode 100644 index 000000000000..8d62df0c330b --- /dev/null +++ b/drivers/usb/host/whci/pzl.c @@ -0,0 +1,398 @@ +/* + * Wireless Host Controller (WHC) periodic schedule management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> +#include <linux/usb.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +#if D_LOCAL >= 4 +static void dump_pzl(struct whc *whc, const char *tag) +{ + struct device *dev = &whc->umc->dev; + struct whc_qset *qset; + int period = 0; + + d_printf(4, dev, "PZL %s\n", tag); + + for (period = 0; period < 5; period++) { + d_printf(4, dev, "Period %d\n", period); + list_for_each_entry(qset, &whc->periodic_list[period], list_node) { + dump_qset(qset, dev); + } + } +} +#else +static inline void dump_pzl(struct whc *whc, const char *tag) +{ +} +#endif + +static void update_pzl_pointers(struct whc *whc, int period, u64 addr) +{ + switch (period) { + case 0: + whc_qset_set_link_ptr(&whc->pz_list[0], addr); + whc_qset_set_link_ptr(&whc->pz_list[2], addr); + whc_qset_set_link_ptr(&whc->pz_list[4], addr); + whc_qset_set_link_ptr(&whc->pz_list[6], addr); + whc_qset_set_link_ptr(&whc->pz_list[8], addr); + whc_qset_set_link_ptr(&whc->pz_list[10], addr); + whc_qset_set_link_ptr(&whc->pz_list[12], addr); + whc_qset_set_link_ptr(&whc->pz_list[14], addr); + break; + case 1: + whc_qset_set_link_ptr(&whc->pz_list[1], addr); + whc_qset_set_link_ptr(&whc->pz_list[5], addr); + whc_qset_set_link_ptr(&whc->pz_list[9], addr); + whc_qset_set_link_ptr(&whc->pz_list[13], addr); + break; + case 2: + whc_qset_set_link_ptr(&whc->pz_list[3], addr); + whc_qset_set_link_ptr(&whc->pz_list[11], addr); + break; + case 3: + whc_qset_set_link_ptr(&whc->pz_list[7], addr); + break; + case 4: + whc_qset_set_link_ptr(&whc->pz_list[15], addr); + break; + } +} + +/* + * Return the 'period' to use for this qset. The minimum interval for + * the endpoint is used so whatever urbs are submitted the device is + * polled often enough. + */ +static int qset_get_period(struct whc *whc, struct whc_qset *qset) +{ + uint8_t bInterval = qset->ep->desc.bInterval; + + if (bInterval < 6) + bInterval = 6; + if (bInterval > 10) + bInterval = 10; + return bInterval - 6; +} + +static void qset_insert_in_sw_list(struct whc *whc, struct whc_qset *qset) +{ + int period; + + period = qset_get_period(whc, qset); + + qset_clear(whc, qset); + list_move(&qset->list_node, &whc->periodic_list[period]); + qset->in_sw_list = true; +} + +static void pzl_qset_remove(struct whc *whc, struct whc_qset *qset) +{ + list_move(&qset->list_node, &whc->periodic_removed_list); + qset->in_hw_list = false; + qset->in_sw_list = false; +} + +/** + * pzl_process_qset - process any recently inactivated or halted qTDs + * in a qset. + * + * After inactive qTDs are removed, new qTDs can be added if the + * urb queue still contains URBs. + * + * Returns the schedule updates required. + */ +static enum whc_update pzl_process_qset(struct whc *whc, struct whc_qset *qset) +{ + enum whc_update update = 0; + uint32_t status = 0; + + while (qset->ntds) { + struct whc_qtd *td; + int t; + + t = qset->td_start; + td = &qset->qtd[qset->td_start]; + status = le32_to_cpu(td->status); + + /* + * Nothing to do with a still active qTD. + */ + if (status & QTD_STS_ACTIVE) + break; + + if (status & QTD_STS_HALTED) { + /* Ug, an error. */ + process_halted_qtd(whc, qset, td); + goto done; + } + + /* Mmm, a completed qTD. */ + process_inactive_qtd(whc, qset, td); + } + + update |= qset_add_qtds(whc, qset); + +done: + /* + * If there are no qTDs in this qset, remove it from the PZL. + */ + if (qset->remove && qset->ntds == 0) { + pzl_qset_remove(whc, qset); + update |= WHC_UPDATE_REMOVED; + } + + return update; +} + +/** + * pzl_start - start the periodic schedule + * @whc: the WHCI host controller + * + * The PZL must be valid (e.g., all entries in the list should have + * the T bit set). + */ +void pzl_start(struct whc *whc) +{ + le_writeq(whc->pz_list_dma, whc->base + WUSBPERIODICLISTBASE); + + whc_write_wusbcmd(whc, WUSBCMD_PERIODIC_EN, WUSBCMD_PERIODIC_EN); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_PERIODIC_SCHED, WUSBSTS_PERIODIC_SCHED, + 1000, "start PZL"); +} + +/** + * pzl_stop - stop the periodic schedule + * @whc: the WHCI host controller + */ +void pzl_stop(struct whc *whc) +{ + whc_write_wusbcmd(whc, WUSBCMD_PERIODIC_EN, 0); + whci_wait_for(&whc->umc->dev, whc->base + WUSBSTS, + WUSBSTS_PERIODIC_SCHED, 0, + 1000, "stop PZL"); +} + +void pzl_update(struct whc *whc, uint32_t wusbcmd) +{ + whc_write_wusbcmd(whc, wusbcmd, wusbcmd); + wait_event(whc->periodic_list_wq, + (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0); +} + +static void update_pzl_hw_view(struct whc *whc) +{ + struct whc_qset *qset, *t; + int period; + u64 tmp_qh = 0; + + for (period = 0; period < 5; period++) { + list_for_each_entry_safe(qset, t, &whc->periodic_list[period], list_node) { + whc_qset_set_link_ptr(&qset->qh.link, tmp_qh); + tmp_qh = qset->qset_dma; + qset->in_hw_list = true; + } + update_pzl_pointers(whc, period, tmp_qh); + } +} + +/** + * scan_periodic_work - scan the PZL for qsets to process. + * + * Process each qset in the PZL in turn and then signal the WHC that + * the PZL has been updated. + * + * Then start, stop or update the periodic schedule as required. + */ +void scan_periodic_work(struct work_struct *work) +{ + struct whc *whc = container_of(work, struct whc, periodic_work); + struct whc_qset *qset, *t; + enum whc_update update = 0; + int period; + + spin_lock_irq(&whc->lock); + + dump_pzl(whc, "before processing"); + + for (period = 4; period >= 0; period--) { + list_for_each_entry_safe(qset, t, &whc->periodic_list[period], list_node) { + if (!qset->in_hw_list) + update |= WHC_UPDATE_ADDED; + update |= pzl_process_qset(whc, qset); + } + } + + if (update & (WHC_UPDATE_ADDED | WHC_UPDATE_REMOVED)) + update_pzl_hw_view(whc); + + dump_pzl(whc, "after processing"); + + spin_unlock_irq(&whc->lock); + + if (update) { + uint32_t wusbcmd = WUSBCMD_PERIODIC_UPDATED | WUSBCMD_PERIODIC_SYNCED_DB; + if (update & WHC_UPDATE_REMOVED) + wusbcmd |= WUSBCMD_PERIODIC_QSET_RM; + pzl_update(whc, wusbcmd); + } + + /* + * Now that the PZL is updated, complete the removal of any + * removed qsets. + */ + spin_lock(&whc->lock); + + list_for_each_entry_safe(qset, t, &whc->periodic_removed_list, list_node) { + qset_remove_complete(whc, qset); + } + + spin_unlock(&whc->lock); +} + +/** + * pzl_urb_enqueue - queue an URB onto the periodic list (PZL) + * @whc: the WHCI host controller + * @urb: the URB to enqueue + * @mem_flags: flags for any memory allocations + * + * The qset for the endpoint is obtained and the urb queued on to it. + * + * Work is scheduled to update the hardware's view of the PZL. + */ +int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) +{ + struct whc_qset *qset; + int err; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + qset = get_qset(whc, urb, GFP_ATOMIC); + if (qset == NULL) + err = -ENOMEM; + else + err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); + if (!err) { + usb_hcd_link_urb_to_ep(&whc->wusbhc.usb_hcd, urb); + if (!qset->in_sw_list) + qset_insert_in_sw_list(whc, qset); + } + + spin_unlock_irqrestore(&whc->lock, flags); + + if (!err) + queue_work(whc->workqueue, &whc->periodic_work); + + return 0; +} + +/** + * pzl_urb_dequeue - remove an URB (qset) from the periodic list + * @whc: the WHCI host controller + * @urb: the URB to dequeue + * @status: the current status of the URB + * + * URBs that do yet have qTDs can simply be removed from the software + * queue, otherwise the qset must be removed so the qTDs can be safely + * removed. + */ +int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status) +{ + struct whc_urb *wurb = urb->hcpriv; + struct whc_qset *qset = wurb->qset; + struct whc_std *std, *t; + int ret; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); + + ret = usb_hcd_check_unlink_urb(&whc->wusbhc.usb_hcd, urb, status); + if (ret < 0) + goto out; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb == urb) + qset_free_std(whc, std); + else + std->qtd = NULL; /* so this std is re-added when the qset is */ + } + + pzl_qset_remove(whc, qset); + wurb->status = status; + wurb->is_async = false; + queue_work(whc->workqueue, &wurb->dequeue_work); + +out: + spin_unlock_irqrestore(&whc->lock, flags); + + return ret; +} + +/** + * pzl_qset_delete - delete a qset from the PZL + */ +void pzl_qset_delete(struct whc *whc, struct whc_qset *qset) +{ + qset->remove = 1; + queue_work(whc->workqueue, &whc->periodic_work); + qset_delete(whc, qset); +} + + +/** + * pzl_init - initialize the periodic zone list + * @whc: the WHCI host controller + */ +int pzl_init(struct whc *whc) +{ + int i; + + whc->pz_list = dma_alloc_coherent(&whc->umc->dev, sizeof(u64) * 16, + &whc->pz_list_dma, GFP_KERNEL); + if (whc->pz_list == NULL) + return -ENOMEM; + + /* Set T bit on all elements in PZL. */ + for (i = 0; i < 16; i++) + whc->pz_list[i] = cpu_to_le64(QH_LINK_NTDS(8) | QH_LINK_T); + + le_writeq(whc->pz_list_dma, whc->base + WUSBPERIODICLISTBASE); + + return 0; +} + +/** + * pzl_clean_up - free PZL resources + * @whc: the WHCI host controller + * + * The PZL is stopped and empty. + */ +void pzl_clean_up(struct whc *whc) +{ + if (whc->pz_list) + dma_free_coherent(&whc->umc->dev, sizeof(u64) * 16, whc->pz_list, + whc->pz_list_dma); +} diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c new file mode 100644 index 000000000000..a20d00854104 --- /dev/null +++ b/drivers/usb/host/whci/qset.c @@ -0,0 +1,563 @@ +/* + * Wireless Host Controller (WHC) qset management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/umc.h> +#include <linux/usb.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +void dump_qset(struct whc_qset *qset, struct device *dev) +{ + struct whc_std *std; + struct urb *urb = NULL; + int i; + + dev_dbg(dev, "qset %08x\n", (u32)qset->qset_dma); + dev_dbg(dev, " -> %08x\n", (u32)qset->qh.link); + dev_dbg(dev, " info: %08x %08x %08x\n", + qset->qh.info1, qset->qh.info2, qset->qh.info3); + dev_dbg(dev, " sts: %04x errs: %d\n", qset->qh.status, qset->qh.err_count); + dev_dbg(dev, " TD: sts: %08x opts: %08x\n", + qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options); + + for (i = 0; i < WHCI_QSET_TD_MAX; i++) { + dev_dbg(dev, " %c%c TD[%d]: sts: %08x opts: %08x ptr: %08x\n", + i == qset->td_start ? 'S' : ' ', + i == qset->td_end ? 'E' : ' ', + i, qset->qtd[i].status, qset->qtd[i].options, + (u32)qset->qtd[i].page_list_ptr); + } + dev_dbg(dev, " ntds: %d\n", qset->ntds); + list_for_each_entry(std, &qset->stds, list_node) { + if (urb != std->urb) { + urb = std->urb; + dev_dbg(dev, " urb %p transferred: %d bytes\n", urb, + urb->actual_length); + } + if (std->qtd) + dev_dbg(dev, " sTD[%td]: %zu bytes @ %08x\n", + std->qtd - &qset->qtd[0], + std->len, std->num_pointers ? + (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); + else + dev_dbg(dev, " sTD[-]: %zd bytes @ %08x\n", + std->len, std->num_pointers ? + (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); + } +} + +struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags) +{ + struct whc_qset *qset; + dma_addr_t dma; + + qset = dma_pool_alloc(whc->qset_pool, mem_flags, &dma); + if (qset == NULL) + return NULL; + memset(qset, 0, sizeof(struct whc_qset)); + + qset->qset_dma = dma; + qset->whc = whc; + + INIT_LIST_HEAD(&qset->list_node); + INIT_LIST_HEAD(&qset->stds); + + return qset; +} + +/** + * qset_fill_qh - fill the static endpoint state in a qset's QHead + * @qset: the qset whose QH needs initializing with static endpoint + * state + * @urb: an urb for a transfer to this endpoint + */ +static void qset_fill_qh(struct whc_qset *qset, struct urb *urb) +{ + struct usb_device *usb_dev = urb->dev; + struct usb_wireless_ep_comp_descriptor *epcd; + bool is_out; + + is_out = usb_pipeout(urb->pipe); + + epcd = (struct usb_wireless_ep_comp_descriptor *)qset->ep->extra; + + if (epcd) { + qset->max_seq = epcd->bMaxSequence; + qset->max_burst = epcd->bMaxBurst; + } else { + qset->max_seq = 2; + qset->max_burst = 1; + } + + qset->qh.info1 = cpu_to_le32( + QH_INFO1_EP(usb_pipeendpoint(urb->pipe)) + | (is_out ? QH_INFO1_DIR_OUT : QH_INFO1_DIR_IN) + | usb_pipe_to_qh_type(urb->pipe) + | QH_INFO1_DEV_INFO_IDX(wusb_port_no_to_idx(usb_dev->portnum)) + | QH_INFO1_MAX_PKT_LEN(usb_maxpacket(urb->dev, urb->pipe, is_out)) + ); + qset->qh.info2 = cpu_to_le32( + QH_INFO2_BURST(qset->max_burst) + | QH_INFO2_DBP(0) + | QH_INFO2_MAX_COUNT(3) + | QH_INFO2_MAX_RETRY(3) + | QH_INFO2_MAX_SEQ(qset->max_seq - 1) + ); + /* FIXME: where can we obtain these Tx parameters from? Why + * doesn't the chip know what Tx power to use? It knows the Rx + * strength and can presumably guess the Tx power required + * from that? */ + qset->qh.info3 = cpu_to_le32( + QH_INFO3_TX_RATE_53_3 + | QH_INFO3_TX_PWR(0) /* 0 == max power */ + ); +} + +/** + * qset_clear - clear fields in a qset so it may be reinserted into a + * schedule + */ +void qset_clear(struct whc *whc, struct whc_qset *qset) +{ + qset->td_start = qset->td_end = qset->ntds = 0; + qset->remove = 0; + + qset->qh.link = cpu_to_le32(QH_LINK_NTDS(8) | QH_LINK_T); + qset->qh.status = cpu_to_le16(QH_STATUS_ICUR(qset->td_start)); + qset->qh.err_count = 0; + qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1); + qset->qh.scratch[0] = 0; + qset->qh.scratch[1] = 0; + qset->qh.scratch[2] = 0; + + memset(&qset->qh.overlay, 0, sizeof(qset->qh.overlay)); + + init_completion(&qset->remove_complete); +} + +/** + * get_qset - get the qset for an async endpoint + * + * A new qset is created if one does not already exist. + */ +struct whc_qset *get_qset(struct whc *whc, struct urb *urb, + gfp_t mem_flags) +{ + struct whc_qset *qset; + + qset = urb->ep->hcpriv; + if (qset == NULL) { + qset = qset_alloc(whc, mem_flags); + if (qset == NULL) + return NULL; + + qset->ep = urb->ep; + urb->ep->hcpriv = qset; + qset_fill_qh(qset, urb); + } + return qset; +} + +void qset_remove_complete(struct whc *whc, struct whc_qset *qset) +{ + list_del_init(&qset->list_node); + complete(&qset->remove_complete); +} + +/** + * qset_add_qtds - add qTDs for an URB to a qset + * + * Returns true if the list (ASL/PZL) must be updated because (for a + * WHCI 0.95 controller) an activated qTD was pointed to be iCur. + */ +enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset) +{ + struct whc_std *std; + enum whc_update update = 0; + + list_for_each_entry(std, &qset->stds, list_node) { + struct whc_qtd *qtd; + uint32_t status; + + if (qset->ntds >= WHCI_QSET_TD_MAX + || (qset->pause_after_urb && std->urb != qset->pause_after_urb)) + break; + + if (std->qtd) + continue; /* already has a qTD */ + + qtd = std->qtd = &qset->qtd[qset->td_end]; + + /* Fill in setup bytes for control transfers. */ + if (usb_pipecontrol(std->urb->pipe)) + memcpy(qtd->setup, std->urb->setup_packet, 8); + + status = QTD_STS_ACTIVE | QTD_STS_LEN(std->len); + + if (whc_std_last(std) && usb_pipeout(std->urb->pipe)) + status |= QTD_STS_LAST_PKT; + + /* + * For an IN transfer the iAlt field should be set so + * the h/w will automatically advance to the next + * transfer. However, if there are 8 or more TDs + * remaining in this transfer then iAlt cannot be set + * as it could point to somewhere in this transfer. + */ + if (std->ntds_remaining < WHCI_QSET_TD_MAX) { + int ialt; + ialt = (qset->td_end + std->ntds_remaining) % WHCI_QSET_TD_MAX; + status |= QTD_STS_IALT(ialt); + } else if (usb_pipein(std->urb->pipe)) + qset->pause_after_urb = std->urb; + + if (std->num_pointers) + qtd->options = cpu_to_le32(QTD_OPT_IOC); + else + qtd->options = cpu_to_le32(QTD_OPT_IOC | QTD_OPT_SMALL); + qtd->page_list_ptr = cpu_to_le64(std->dma_addr); + + qtd->status = cpu_to_le32(status); + + if (QH_STATUS_TO_ICUR(qset->qh.status) == qset->td_end) + update = WHC_UPDATE_UPDATED; + + if (++qset->td_end >= WHCI_QSET_TD_MAX) + qset->td_end = 0; + qset->ntds++; + } + + return update; +} + +/** + * qset_remove_qtd - remove the first qTD from a qset. + * + * The qTD might be still active (if it's part of a IN URB that + * resulted in a short read) so ensure it's deactivated. + */ +static void qset_remove_qtd(struct whc *whc, struct whc_qset *qset) +{ + qset->qtd[qset->td_start].status = 0; + + if (++qset->td_start >= WHCI_QSET_TD_MAX) + qset->td_start = 0; + qset->ntds--; +} + +/** + * qset_free_std - remove an sTD and free it. + * @whc: the WHCI host controller + * @std: the sTD to remove and free. + */ +void qset_free_std(struct whc *whc, struct whc_std *std) +{ + list_del(&std->list_node); + if (std->num_pointers) + dma_unmap_single(whc->wusbhc.dev, std->dma_addr, + std->num_pointers * sizeof(struct whc_page_list_entry), + DMA_TO_DEVICE); + kfree(std); +} + +/** + * qset_remove_qtds - remove an URB's qTDs (and sTDs). + */ +static void qset_remove_qtds(struct whc *whc, struct whc_qset *qset, + struct urb *urb) +{ + struct whc_std *std, *t; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb != urb) + break; + if (std->qtd != NULL) + qset_remove_qtd(whc, qset); + qset_free_std(whc, std); + } +} + +/** + * qset_free_stds - free any remaining sTDs for an URB. + */ +static void qset_free_stds(struct whc_qset *qset, struct urb *urb) +{ + struct whc_std *std, *t; + + list_for_each_entry_safe(std, t, &qset->stds, list_node) { + if (std->urb == urb) + qset_free_std(qset->whc, std); + } +} + +static int qset_fill_page_list(struct whc *whc, struct whc_std *std, gfp_t mem_flags) +{ + dma_addr_t dma_addr = std->dma_addr; + dma_addr_t sp, ep; + size_t std_len = std->len; + size_t pl_len; + int p; + + sp = ALIGN(dma_addr, WHCI_PAGE_SIZE); + ep = dma_addr + std_len; + std->num_pointers = DIV_ROUND_UP(ep - sp, WHCI_PAGE_SIZE); + + pl_len = std->num_pointers * sizeof(struct whc_page_list_entry); + std->pl_virt = kmalloc(pl_len, mem_flags); + if (std->pl_virt == NULL) + return -ENOMEM; + std->dma_addr = dma_map_single(whc->wusbhc.dev, std->pl_virt, pl_len, DMA_TO_DEVICE); + + for (p = 0; p < std->num_pointers; p++) { + std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr); + dma_addr = ALIGN(dma_addr + WHCI_PAGE_SIZE, WHCI_PAGE_SIZE); + } + + return 0; +} + +/** + * urb_dequeue_work - executes asl/pzl update and gives back the urb to the system. + */ +static void urb_dequeue_work(struct work_struct *work) +{ + struct whc_urb *wurb = container_of(work, struct whc_urb, dequeue_work); + struct whc_qset *qset = wurb->qset; + struct whc *whc = qset->whc; + unsigned long flags; + + if (wurb->is_async == true) + asl_update(whc, WUSBCMD_ASYNC_UPDATED + | WUSBCMD_ASYNC_SYNCED_DB + | WUSBCMD_ASYNC_QSET_RM); + else + pzl_update(whc, WUSBCMD_PERIODIC_UPDATED + | WUSBCMD_PERIODIC_SYNCED_DB + | WUSBCMD_PERIODIC_QSET_RM); + + spin_lock_irqsave(&whc->lock, flags); + qset_remove_urb(whc, qset, wurb->urb, wurb->status); + spin_unlock_irqrestore(&whc->lock, flags); +} + +/** + * qset_add_urb - add an urb to the qset's queue. + * + * The URB is chopped into sTDs, one for each qTD that will required. + * At least one qTD (and sTD) is required even if the transfer has no + * data (e.g., for some control transfers). + */ +int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb, + gfp_t mem_flags) +{ + struct whc_urb *wurb; + int remaining = urb->transfer_buffer_length; + u64 transfer_dma = urb->transfer_dma; + int ntds_remaining; + + ntds_remaining = DIV_ROUND_UP(remaining, QTD_MAX_XFER_SIZE); + if (ntds_remaining == 0) + ntds_remaining = 1; + + wurb = kzalloc(sizeof(struct whc_urb), mem_flags); + if (wurb == NULL) + goto err_no_mem; + urb->hcpriv = wurb; + wurb->qset = qset; + wurb->urb = urb; + INIT_WORK(&wurb->dequeue_work, urb_dequeue_work); + + while (ntds_remaining) { + struct whc_std *std; + size_t std_len; + + std = kmalloc(sizeof(struct whc_std), mem_flags); + if (std == NULL) + goto err_no_mem; + + std_len = remaining; + if (std_len > QTD_MAX_XFER_SIZE) + std_len = QTD_MAX_XFER_SIZE; + + std->urb = urb; + std->dma_addr = transfer_dma; + std->len = std_len; + std->ntds_remaining = ntds_remaining; + std->qtd = NULL; + + INIT_LIST_HEAD(&std->list_node); + list_add_tail(&std->list_node, &qset->stds); + + if (std_len > WHCI_PAGE_SIZE) { + if (qset_fill_page_list(whc, std, mem_flags) < 0) + goto err_no_mem; + } else + std->num_pointers = 0; + + ntds_remaining--; + remaining -= std_len; + transfer_dma += std_len; + } + + return 0; + +err_no_mem: + qset_free_stds(qset, urb); + return -ENOMEM; +} + +/** + * qset_remove_urb - remove an URB from the urb queue. + * + * The URB is returned to the USB subsystem. + */ +void qset_remove_urb(struct whc *whc, struct whc_qset *qset, + struct urb *urb, int status) +{ + struct wusbhc *wusbhc = &whc->wusbhc; + + usb_hcd_unlink_urb_from_ep(&wusbhc->usb_hcd, urb); + /* Drop the lock as urb->complete() may enqueue another urb. */ + spin_unlock(&whc->lock); + wusbhc_giveback_urb(wusbhc, urb, status); + spin_lock(&whc->lock); + + kfree(urb->hcpriv); +} + +/** + * get_urb_status_from_qtd - get the completed urb status from qTD status + * @urb: completed urb + * @status: qTD status + */ +static int get_urb_status_from_qtd(struct urb *urb, u32 status) +{ + if (status & QTD_STS_HALTED) { + if (status & QTD_STS_DBE) + return usb_pipein(urb->pipe) ? -ENOSR : -ECOMM; + else if (status & QTD_STS_BABBLE) + return -EOVERFLOW; + else if (status & QTD_STS_RCE) + return -ETIME; + return -EPIPE; + } + if (usb_pipein(urb->pipe) + && (urb->transfer_flags & URB_SHORT_NOT_OK) + && urb->actual_length < urb->transfer_buffer_length) + return -EREMOTEIO; + return 0; +} + +/** + * process_inactive_qtd - process an inactive (but not halted) qTD. + * + * Update the urb with the transfer bytes from the qTD, if the urb is + * completely transfered or (in the case of an IN only) the LPF is + * set, then the transfer is complete and the urb should be returned + * to the system. + */ +void process_inactive_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd) +{ + struct whc_std *std = list_first_entry(&qset->stds, struct whc_std, list_node); + struct urb *urb = std->urb; + uint32_t status; + bool complete; + + status = le32_to_cpu(qtd->status); + + urb->actual_length += std->len - QTD_STS_TO_LEN(status); + + if (usb_pipein(urb->pipe) && (status & QTD_STS_LAST_PKT)) + complete = true; + else + complete = whc_std_last(std); + + qset_remove_qtd(whc, qset); + qset_free_std(whc, std); + + /* + * Transfers for this URB are complete? Then return it to the + * USB subsystem. + */ + if (complete) { + qset_remove_qtds(whc, qset, urb); + qset_remove_urb(whc, qset, urb, get_urb_status_from_qtd(urb, status)); + + /* + * If iAlt isn't valid then the hardware didn't + * advance iCur. Adjust the start and end pointers to + * match iCur. + */ + if (!(status & QTD_STS_IALT_VALID)) + qset->td_start = qset->td_end + = QH_STATUS_TO_ICUR(le16_to_cpu(qset->qh.status)); + qset->pause_after_urb = NULL; + } +} + +/** + * process_halted_qtd - process a qset with a halted qtd + * + * Remove all the qTDs for the failed URB and return the failed URB to + * the USB subsystem. Then remove all other qTDs so the qset can be + * removed. + * + * FIXME: this is the point where rate adaptation can be done. If a + * transfer failed because it exceeded the maximum number of retries + * then it could be reactivated with a slower rate without having to + * remove the qset. + */ +void process_halted_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd) +{ + struct whc_std *std = list_first_entry(&qset->stds, struct whc_std, list_node); + struct urb *urb = std->urb; + int urb_status; + + urb_status = get_urb_status_from_qtd(urb, le32_to_cpu(qtd->status)); + + qset_remove_qtds(whc, qset, urb); + qset_remove_urb(whc, qset, urb, urb_status); + + list_for_each_entry(std, &qset->stds, list_node) { + if (qset->ntds == 0) + break; + qset_remove_qtd(whc, qset); + std->qtd = NULL; + } + + qset->remove = 1; +} + +void qset_free(struct whc *whc, struct whc_qset *qset) +{ + dma_pool_free(whc->qset_pool, qset, qset->qset_dma); +} + +/** + * qset_delete - wait for a qset to be unused, then free it. + */ +void qset_delete(struct whc *whc, struct whc_qset *qset) +{ + wait_for_completion(&qset->remove_complete); + qset_free(whc, qset); +} diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h new file mode 100644 index 000000000000..0ed0e7753249 --- /dev/null +++ b/drivers/usb/host/whci/whcd.h @@ -0,0 +1,195 @@ +/* + * Wireless Host Controller (WHC) private header. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ +#ifndef __WHCD_H +#define __WHCD_H + +#include <linux/uwb/whci.h> +#include <linux/workqueue.h> + +#include "whci-hc.h" + +/* Generic command timeout. */ +#define WHC_GENCMD_TIMEOUT_MS 100 + + +struct whc { + struct wusbhc wusbhc; + struct umc_dev *umc; + + resource_size_t base_phys; + void __iomem *base; + int irq; + + u8 n_devices; + u8 n_keys; + u8 n_mmc_ies; + + u64 *pz_list; + struct dn_buf_entry *dn_buf; + struct di_buf_entry *di_buf; + dma_addr_t pz_list_dma; + dma_addr_t dn_buf_dma; + dma_addr_t di_buf_dma; + + spinlock_t lock; + struct mutex mutex; + + wait_queue_head_t cmd_wq; + + struct workqueue_struct *workqueue; + struct work_struct dn_work; + + struct dma_pool *qset_pool; + + struct list_head async_list; + struct list_head async_removed_list; + wait_queue_head_t async_list_wq; + struct work_struct async_work; + + struct list_head periodic_list[5]; + struct list_head periodic_removed_list; + wait_queue_head_t periodic_list_wq; + struct work_struct periodic_work; +}; + +#define wusbhc_to_whc(w) (container_of((w), struct whc, wusbhc)) + +/** + * struct whc_std - a software TD. + * @urb: the URB this sTD is for. + * @offset: start of the URB's data for this TD. + * @len: the length of data in the associated TD. + * @ntds_remaining: number of TDs (starting from this one) in this transfer. + * + * Queued URBs may require more TDs than are available in a qset so we + * use a list of these "software TDs" (sTDs) to hold per-TD data. + */ +struct whc_std { + struct urb *urb; + size_t len; + int ntds_remaining; + struct whc_qtd *qtd; + + struct list_head list_node; + int num_pointers; + dma_addr_t dma_addr; + struct whc_page_list_entry *pl_virt; +}; + +/** + * struct whc_urb - per URB host controller structure. + * @urb: the URB this struct is for. + * @qset: the qset associated to the URB. + * @dequeue_work: the work to remove the URB when dequeued. + * @is_async: the URB belongs to async sheduler or not. + * @status: the status to be returned when calling wusbhc_giveback_urb. + */ +struct whc_urb { + struct urb *urb; + struct whc_qset *qset; + struct work_struct dequeue_work; + bool is_async; + int status; +}; + +/** + * whc_std_last - is this sTD the URB's last? + * @std: the sTD to check. + */ +static inline bool whc_std_last(struct whc_std *std) +{ + return std->ntds_remaining <= 1; +} + +enum whc_update { + WHC_UPDATE_ADDED = 0x01, + WHC_UPDATE_REMOVED = 0x02, + WHC_UPDATE_UPDATED = 0x04, +}; + +/* init.c */ +int whc_init(struct whc *whc); +void whc_clean_up(struct whc *whc); + +/* hw.c */ +void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val); +int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len); + +/* wusb.c */ +int whc_wusbhc_start(struct wusbhc *wusbhc); +void whc_wusbhc_stop(struct wusbhc *wusbhc); +int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + u8 handle, struct wuie_hdr *wuie); +int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle); +int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm); +int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev); +int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots); +int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *ptk, size_t key_size); +int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid, + const void *gtk, size_t key_size); +int whc_set_cluster_id(struct whc *whc, u8 bcid); + +/* int.c */ +irqreturn_t whc_int_handler(struct usb_hcd *hcd); +void whc_dn_work(struct work_struct *work); + +/* asl.c */ +void asl_start(struct whc *whc); +void asl_stop(struct whc *whc); +int asl_init(struct whc *whc); +void asl_clean_up(struct whc *whc); +int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags); +int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status); +void asl_qset_delete(struct whc *whc, struct whc_qset *qset); +void scan_async_work(struct work_struct *work); + +/* pzl.c */ +int pzl_init(struct whc *whc); +void pzl_clean_up(struct whc *whc); +void pzl_start(struct whc *whc); +void pzl_stop(struct whc *whc); +int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags); +int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status); +void pzl_qset_delete(struct whc *whc, struct whc_qset *qset); +void scan_periodic_work(struct work_struct *work); + +/* qset.c */ +struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags); +void qset_free(struct whc *whc, struct whc_qset *qset); +struct whc_qset *get_qset(struct whc *whc, struct urb *urb, gfp_t mem_flags); +void qset_delete(struct whc *whc, struct whc_qset *qset); +void qset_clear(struct whc *whc, struct whc_qset *qset); +int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb, + gfp_t mem_flags); +void qset_free_std(struct whc *whc, struct whc_std *std); +void qset_remove_urb(struct whc *whc, struct whc_qset *qset, + struct urb *urb, int status); +void process_halted_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd); +void process_inactive_qtd(struct whc *whc, struct whc_qset *qset, + struct whc_qtd *qtd); +enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset); +void qset_remove_complete(struct whc *whc, struct whc_qset *qset); +void dump_qset(struct whc_qset *qset, struct device *dev); +void pzl_update(struct whc *whc, uint32_t wusbcmd); +void asl_update(struct whc *whc, uint32_t wusbcmd); + +#endif /* #ifndef __WHCD_H */ diff --git a/drivers/usb/host/whci/whci-hc.h b/drivers/usb/host/whci/whci-hc.h new file mode 100644 index 000000000000..cb5fc94180d4 --- /dev/null +++ b/drivers/usb/host/whci/whci-hc.h @@ -0,0 +1,413 @@ +/* + * Wireless Host Controller (WHC) data structures. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ +#ifndef _WHCI_WHCI_HC_H +#define _WHCI_WHCI_HC_H + +#include <linux/list.h> + +/** + * WHCI_PAGE_SIZE - page size use by WHCI + * + * WHCI assumes that host system uses pages of 4096 octets. + */ +#define WHCI_PAGE_SIZE 4096 + + +/** + * QTD_MAX_TXFER_SIZE - max number of bytes to transfer with a single + * qtd. + * + * This is 2^20 - 1. + */ +#define QTD_MAX_XFER_SIZE 1048575 + + +/** + * struct whc_qtd - Queue Element Transfer Descriptors (qTD) + * + * This describes the data for a bulk, control or interrupt transfer. + * + * [WHCI] section 3.2.4 + */ +struct whc_qtd { + __le32 status; /*< remaining transfer len and transfer status */ + __le32 options; + __le64 page_list_ptr; /*< physical pointer to data buffer page list*/ + __u8 setup[8]; /*< setup data for control transfers */ +} __attribute__((packed)); + +#define QTD_STS_ACTIVE (1 << 31) /* enable execution of transaction */ +#define QTD_STS_HALTED (1 << 30) /* transfer halted */ +#define QTD_STS_DBE (1 << 29) /* data buffer error */ +#define QTD_STS_BABBLE (1 << 28) /* babble detected */ +#define QTD_STS_RCE (1 << 27) /* retry count exceeded */ +#define QTD_STS_LAST_PKT (1 << 26) /* set Last Packet Flag in WUSB header */ +#define QTD_STS_INACTIVE (1 << 25) /* queue set is marked inactive */ +#define QTD_STS_IALT_VALID (1 << 23) /* iAlt field is valid */ +#define QTD_STS_IALT(i) (QTD_STS_IALT_VALID | ((i) << 20)) /* iAlt field */ +#define QTD_STS_LEN(l) ((l) << 0) /* transfer length */ +#define QTD_STS_TO_LEN(s) ((s) & 0x000fffff) + +#define QTD_OPT_IOC (1 << 1) /* page_list_ptr points to buffer directly */ +#define QTD_OPT_SMALL (1 << 0) /* interrupt on complete */ + +/** + * struct whc_itd - Isochronous Queue Element Transfer Descriptors (iTD) + * + * This describes the data and other parameters for an isochronous + * transfer. + * + * [WHCI] section 3.2.5 + */ +struct whc_itd { + __le16 presentation_time; /*< presentation time for OUT transfers */ + __u8 num_segments; /*< number of data segments in segment list */ + __u8 status; /*< command execution status */ + __le32 options; /*< misc transfer options */ + __le64 page_list_ptr; /*< physical pointer to data buffer page list */ + __le64 seg_list_ptr; /*< physical pointer to segment list */ +} __attribute__((packed)); + +#define ITD_STS_ACTIVE (1 << 7) /* enable execution of transaction */ +#define ITD_STS_DBE (1 << 5) /* data buffer error */ +#define ITD_STS_BABBLE (1 << 4) /* babble detected */ +#define ITD_STS_INACTIVE (1 << 1) /* queue set is marked inactive */ + +#define ITD_OPT_IOC (1 << 1) /* interrupt on complete */ +#define ITD_OPT_SMALL (1 << 0) /* page_list_ptr points to buffer directly */ + +/** + * Page list entry. + * + * A TD's page list must contain sufficient page list entries for the + * total data length in the TD. + * + * [WHCI] section 3.2.4.3 + */ +struct whc_page_list_entry { + __le64 buf_ptr; /*< physical pointer to buffer */ +} __attribute__((packed)); + +/** + * struct whc_seg_list_entry - Segment list entry. + * + * Describes a portion of the data buffer described in the containing + * qTD's page list. + * + * seg_ptr = qtd->page_list_ptr[qtd->seg_list_ptr[seg].idx].buf_ptr + * + qtd->seg_list_ptr[seg].offset; + * + * Segments can't cross page boundries. + * + * [WHCI] section 3.2.5.5 + */ +struct whc_seg_list_entry { + __le16 len; /*< segment length */ + __u8 idx; /*< index into page list */ + __u8 status; /*< segment status */ + __le16 offset; /*< 12 bit offset into page */ +} __attribute__((packed)); + +/** + * struct whc_qhead - endpoint and status information for a qset. + * + * [WHCI] section 3.2.6 + */ +struct whc_qhead { + __le64 link; /*< next qset in list */ + __le32 info1; + __le32 info2; + __le32 info3; + __le16 status; + __le16 err_count; /*< transaction error count */ + __le32 cur_window; + __le32 scratch[3]; /*< h/w scratch area */ + union { + struct whc_qtd qtd; + struct whc_itd itd; + } overlay; +} __attribute__((packed)); + +#define QH_LINK_PTR_MASK (~0x03Full) +#define QH_LINK_PTR(ptr) ((ptr) & QH_LINK_PTR_MASK) +#define QH_LINK_IQS (1 << 4) /* isochronous queue set */ +#define QH_LINK_NTDS(n) (((n) - 1) << 1) /* number of TDs in queue set */ +#define QH_LINK_T (1 << 0) /* last queue set in periodic schedule list */ + +#define QH_INFO1_EP(e) ((e) << 0) /* endpoint number */ +#define QH_INFO1_DIR_IN (1 << 4) /* IN transfer */ +#define QH_INFO1_DIR_OUT (0 << 4) /* OUT transfer */ +#define QH_INFO1_TR_TYPE_CTRL (0x0 << 5) /* control transfer */ +#define QH_INFO1_TR_TYPE_ISOC (0x1 << 5) /* isochronous transfer */ +#define QH_INFO1_TR_TYPE_BULK (0x2 << 5) /* bulk transfer */ +#define QH_INFO1_TR_TYPE_INT (0x3 << 5) /* interrupt */ +#define QH_INFO1_TR_TYPE_LP_INT (0x7 << 5) /* low power interrupt */ +#define QH_INFO1_DEV_INFO_IDX(i) ((i) << 8) /* index into device info buffer */ +#define QH_INFO1_SET_INACTIVE (1 << 15) /* set inactive after transfer */ +#define QH_INFO1_MAX_PKT_LEN(l) ((l) << 16) /* maximum packet length */ + +#define QH_INFO2_BURST(b) ((b) << 0) /* maximum burst length */ +#define QH_INFO2_DBP(p) ((p) << 5) /* data burst policy (see [WUSB] table 5-7) */ +#define QH_INFO2_MAX_COUNT(c) ((c) << 8) /* max isoc/int pkts per zone */ +#define QH_INFO2_RQS (1 << 15) /* reactivate queue set */ +#define QH_INFO2_MAX_RETRY(r) ((r) << 16) /* maximum transaction retries */ +#define QH_INFO2_MAX_SEQ(s) ((s) << 20) /* maximum sequence number */ +#define QH_INFO3_MAX_DELAY(d) ((d) << 0) /* maximum stream delay in 125 us units (isoc only) */ +#define QH_INFO3_INTERVAL(i) ((i) << 16) /* segment interval in 125 us units (isoc only) */ + +#define QH_INFO3_TX_RATE_53_3 (0 << 24) +#define QH_INFO3_TX_RATE_80 (1 << 24) +#define QH_INFO3_TX_RATE_106_7 (2 << 24) +#define QH_INFO3_TX_RATE_160 (3 << 24) +#define QH_INFO3_TX_RATE_200 (4 << 24) +#define QH_INFO3_TX_RATE_320 (5 << 24) +#define QH_INFO3_TX_RATE_400 (6 << 24) +#define QH_INFO3_TX_RATE_480 (7 << 24) +#define QH_INFO3_TX_PWR(p) ((p) << 29) /* transmit power (see [WUSB] section 5.2.1.2) */ + +#define QH_STATUS_FLOW_CTRL (1 << 15) +#define QH_STATUS_ICUR(i) ((i) << 5) +#define QH_STATUS_TO_ICUR(s) (((s) >> 5) & 0x7) + +/** + * usb_pipe_to_qh_type - USB core pipe type to QH transfer type + * + * Returns the QH type field for a USB core pipe type. + */ +static inline unsigned usb_pipe_to_qh_type(unsigned pipe) +{ + static const unsigned type[] = { + [PIPE_ISOCHRONOUS] = QH_INFO1_TR_TYPE_ISOC, + [PIPE_INTERRUPT] = QH_INFO1_TR_TYPE_INT, + [PIPE_CONTROL] = QH_INFO1_TR_TYPE_CTRL, + [PIPE_BULK] = QH_INFO1_TR_TYPE_BULK, + }; + return type[usb_pipetype(pipe)]; +} + +/** + * Maxiumum number of TDs in a qset. + */ +#define WHCI_QSET_TD_MAX 8 + +/** + * struct whc_qset - WUSB data transfers to a specific endpoint + * @qh: the QHead of this qset + * @qtd: up to 8 qTDs (for qsets for control, bulk and interrupt + * transfers) + * @itd: up to 8 iTDs (for qsets for isochronous transfers) + * @qset_dma: DMA address for this qset + * @whc: WHCI HC this qset is for + * @ep: endpoint + * @stds: list of sTDs queued to this qset + * @ntds: number of qTDs queued (not necessarily the same as nTDs + * field in the QH) + * @td_start: index of the first qTD in the list + * @td_end: index of next free qTD in the list (provided + * ntds < WHCI_QSET_TD_MAX) + * + * Queue Sets (qsets) are added to the asynchronous schedule list + * (ASL) or the periodic zone list (PZL). + * + * qsets may contain up to 8 TDs (either qTDs or iTDs as appropriate). + * Each TD may refer to at most 1 MiB of data. If a single transfer + * has > 8MiB of data, TDs can be reused as they are completed since + * the TD list is used as a circular buffer. Similarly, several + * (smaller) transfers may be queued in a qset. + * + * WHCI controllers may cache portions of the qsets in the ASL and + * PZL, requiring the WHCD to inform the WHC that the lists have been + * updated (fields changed or qsets inserted or removed). For safe + * insertion and removal of qsets from the lists the schedule must be + * stopped to avoid races in updating the QH link pointers. + * + * Since the HC is free to execute qsets in any order, all transfers + * to an endpoint should use the same qset to ensure transfers are + * executed in the order they're submitted. + * + * [WHCI] section 3.2.3 + */ +struct whc_qset { + struct whc_qhead qh; + union { + struct whc_qtd qtd[WHCI_QSET_TD_MAX]; + struct whc_itd itd[WHCI_QSET_TD_MAX]; + }; + + /* private data for WHCD */ + dma_addr_t qset_dma; + struct whc *whc; + struct usb_host_endpoint *ep; + struct list_head stds; + int ntds; + int td_start; + int td_end; + struct list_head list_node; + unsigned in_sw_list:1; + unsigned in_hw_list:1; + unsigned remove:1; + struct urb *pause_after_urb; + struct completion remove_complete; + int max_burst; + int max_seq; +}; + +static inline void whc_qset_set_link_ptr(u64 *ptr, u64 target) +{ + if (target) + *ptr = (*ptr & ~(QH_LINK_PTR_MASK | QH_LINK_T)) | QH_LINK_PTR(target); + else + *ptr = QH_LINK_T; +} + +/** + * struct di_buf_entry - Device Information (DI) buffer entry. + * + * There's one of these per connected device. + */ +struct di_buf_entry { + __le32 availability_info[8]; /*< MAS availability information, one MAS per bit */ + __le32 addr_sec_info; /*< addressing and security info */ + __le32 reserved[7]; +} __attribute__((packed)); + +#define WHC_DI_SECURE (1 << 31) +#define WHC_DI_DISABLE (1 << 30) +#define WHC_DI_KEY_IDX(k) ((k) << 8) +#define WHC_DI_KEY_IDX_MASK 0x0000ff00 +#define WHC_DI_DEV_ADDR(a) ((a) << 0) +#define WHC_DI_DEV_ADDR_MASK 0x000000ff + +/** + * struct dn_buf_entry - Device Notification (DN) buffer entry. + * + * [WHCI] section 3.2.8 + */ +struct dn_buf_entry { + __u8 msg_size; /*< number of octets of valid DN data */ + __u8 reserved1; + __u8 src_addr; /*< source address */ + __u8 status; /*< buffer entry status */ + __le32 tkid; /*< TKID for source device, valid if secure bit is set */ + __u8 dn_data[56]; /*< up to 56 octets of DN data */ +} __attribute__((packed)); + +#define WHC_DN_STATUS_VALID (1 << 7) /* buffer entry is valid */ +#define WHC_DN_STATUS_SECURE (1 << 6) /* notification received using secure frame */ + +#define WHC_N_DN_ENTRIES (4096 / sizeof(struct dn_buf_entry)) + + +/* + * HC registers. + * + * [WHCI] section 2.4 + */ + +#define WHCIVERSION 0x00 + +#define WHCSPARAMS 0x04 +# define WHCSPARAMS_TO_N_MMC_IES(p) (((p) >> 16) & 0xff) +# define WHCSPARAMS_TO_N_KEYS(p) (((p) >> 8) & 0xff) +# define WHCSPARAMS_TO_N_DEVICES(p) (((p) >> 0) & 0x7f) + +#define WUSBCMD 0x08 +# define WUSBCMD_BCID(b) ((b) << 16) +# define WUSBCMD_BCID_MASK (0xff << 16) +# define WUSBCMD_ASYNC_QSET_RM (1 << 12) +# define WUSBCMD_PERIODIC_QSET_RM (1 << 11) +# define WUSBCMD_WUSBSI(s) ((s) << 8) +# define WUSBCMD_WUSBSI_MASK (0x7 << 8) +# define WUSBCMD_ASYNC_SYNCED_DB (1 << 7) +# define WUSBCMD_PERIODIC_SYNCED_DB (1 << 6) +# define WUSBCMD_ASYNC_UPDATED (1 << 5) +# define WUSBCMD_PERIODIC_UPDATED (1 << 4) +# define WUSBCMD_ASYNC_EN (1 << 3) +# define WUSBCMD_PERIODIC_EN (1 << 2) +# define WUSBCMD_WHCRESET (1 << 1) +# define WUSBCMD_RUN (1 << 0) + +#define WUSBSTS 0x0c +# define WUSBSTS_ASYNC_SCHED (1 << 15) +# define WUSBSTS_PERIODIC_SCHED (1 << 14) +# define WUSBSTS_DNTS_SCHED (1 << 13) +# define WUSBSTS_HCHALTED (1 << 12) +# define WUSBSTS_GEN_CMD_DONE (1 << 9) +# define WUSBSTS_CHAN_TIME_ROLLOVER (1 << 8) +# define WUSBSTS_DNTS_OVERFLOW (1 << 7) +# define WUSBSTS_BPST_ADJUSTMENT_CHANGED (1 << 6) +# define WUSBSTS_HOST_ERR (1 << 5) +# define WUSBSTS_ASYNC_SCHED_SYNCED (1 << 4) +# define WUSBSTS_PERIODIC_SCHED_SYNCED (1 << 3) +# define WUSBSTS_DNTS_INT (1 << 2) +# define WUSBSTS_ERR_INT (1 << 1) +# define WUSBSTS_INT (1 << 0) +# define WUSBSTS_INT_MASK 0x3ff + +#define WUSBINTR 0x10 +# define WUSBINTR_GEN_CMD_DONE (1 << 9) +# define WUSBINTR_CHAN_TIME_ROLLOVER (1 << 8) +# define WUSBINTR_DNTS_OVERFLOW (1 << 7) +# define WUSBINTR_BPST_ADJUSTMENT_CHANGED (1 << 6) +# define WUSBINTR_HOST_ERR (1 << 5) +# define WUSBINTR_ASYNC_SCHED_SYNCED (1 << 4) +# define WUSBINTR_PERIODIC_SCHED_SYNCED (1 << 3) +# define WUSBINTR_DNTS_INT (1 << 2) +# define WUSBINTR_ERR_INT (1 << 1) +# define WUSBINTR_INT (1 << 0) +# define WUSBINTR_ALL 0x3ff + +#define WUSBGENCMDSTS 0x14 +# define WUSBGENCMDSTS_ACTIVE (1 << 31) +# define WUSBGENCMDSTS_ERROR (1 << 24) +# define WUSBGENCMDSTS_IOC (1 << 23) +# define WUSBGENCMDSTS_MMCIE_ADD 0x01 +# define WUSBGENCMDSTS_MMCIE_RM 0x02 +# define WUSBGENCMDSTS_SET_MAS 0x03 +# define WUSBGENCMDSTS_CHAN_STOP 0x04 +# define WUSBGENCMDSTS_RWP_EN 0x05 + +#define WUSBGENCMDPARAMS 0x18 +#define WUSBGENADDR 0x20 +#define WUSBASYNCLISTADDR 0x28 +#define WUSBDNTSBUFADDR 0x30 +#define WUSBDEVICEINFOADDR 0x38 + +#define WUSBSETSECKEYCMD 0x40 +# define WUSBSETSECKEYCMD_SET (1 << 31) +# define WUSBSETSECKEYCMD_ERASE (1 << 30) +# define WUSBSETSECKEYCMD_GTK (1 << 8) +# define WUSBSETSECKEYCMD_IDX(i) ((i) << 0) + +#define WUSBTKID 0x44 +#define WUSBSECKEY 0x48 +#define WUSBPERIODICLISTBASE 0x58 +#define WUSBMASINDEX 0x60 + +#define WUSBDNTSCTRL 0x64 +# define WUSBDNTSCTRL_ACTIVE (1 << 31) +# define WUSBDNTSCTRL_INTERVAL(i) ((i) << 8) +# define WUSBDNTSCTRL_SLOTS(s) ((s) << 0) + +#define WUSBTIME 0x68 +#define WUSBBPST 0x6c +#define WUSBDIBUPDATED 0x70 + +#endif /* #ifndef _WHCI_WHCI_HC_H */ diff --git a/drivers/usb/host/whci/wusb.c b/drivers/usb/host/whci/wusb.c new file mode 100644 index 000000000000..66e4ddcd961d --- /dev/null +++ b/drivers/usb/host/whci/wusb.c @@ -0,0 +1,241 @@ +/* + * Wireless Host Controller (WHC) WUSB operations. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/uwb/umc.h> +#define D_LOCAL 1 +#include <linux/uwb/debug.h> + +#include "../../wusbcore/wusbhc.h" + +#include "whcd.h" + +#if D_LOCAL >= 1 +static void dump_di(struct whc *whc, int idx) +{ + struct di_buf_entry *di = &whc->di_buf[idx]; + struct device *dev = &whc->umc->dev; + char buf[128]; + + bitmap_scnprintf(buf, sizeof(buf), (unsigned long *)di->availability_info, UWB_NUM_MAS); + + d_printf(1, dev, "DI[%d]\n", idx); + d_printf(1, dev, " availability: %s\n", buf); + d_printf(1, dev, " %c%c key idx: %d dev addr: %d\n", + (di->addr_sec_info & WHC_DI_SECURE) ? 'S' : ' ', + (di->addr_sec_info & WHC_DI_DISABLE) ? 'D' : ' ', + (di->addr_sec_info & WHC_DI_KEY_IDX_MASK) >> 8, + (di->addr_sec_info & WHC_DI_DEV_ADDR_MASK)); +} +#else +static inline void dump_di(struct whc *whc, int idx) +{ +} +#endif + +static int whc_update_di(struct whc *whc, int idx) +{ + int offset = idx / 32; + u32 bit = 1 << (idx % 32); + + dump_di(whc, idx); + + le_writel(bit, whc->base + WUSBDIBUPDATED + offset); + + return whci_wait_for(&whc->umc->dev, + whc->base + WUSBDIBUPDATED + offset, bit, 0, + 100, "DI update"); +} + +/* + * WHCI starts and stops MMCs based on there being a valid GTK so + * these need only start/stop the asynchronous and periodic schedules. + */ + +int whc_wusbhc_start(struct wusbhc *wusbhc) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + + asl_start(whc); + pzl_start(whc); + + return 0; +} + +void whc_wusbhc_stop(struct wusbhc *wusbhc) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + + pzl_stop(whc); + asl_stop(whc); +} + +int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + u8 handle, struct wuie_hdr *wuie) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 params; + + params = (interval << 24) + | (repeat_cnt << 16) + | (wuie->bLength << 8) + | handle; + + return whc_do_gencmd(whc, WUSBGENCMDSTS_MMCIE_ADD, params, wuie, wuie->bLength); +} + +int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 params; + + params = handle; + + return whc_do_gencmd(whc, WUSBGENCMDSTS_MMCIE_RM, params, NULL, 0); +} + +int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + + if (stream_index >= 0) + whc_write_wusbcmd(whc, WUSBCMD_WUSBSI_MASK, WUSBCMD_WUSBSI(stream_index)); + + return whc_do_gencmd(whc, WUSBGENCMDSTS_SET_MAS, 0, (void *)mas_bm, sizeof(*mas_bm)); +} + +int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + int idx = wusb_dev->port_idx; + struct di_buf_entry *di = &whc->di_buf[idx]; + int ret; + + mutex_lock(&whc->mutex); + + uwb_mas_bm_copy_le(di->availability_info, &wusb_dev->availability); + di->addr_sec_info &= ~(WHC_DI_DISABLE | WHC_DI_DEV_ADDR_MASK); + di->addr_sec_info |= WHC_DI_DEV_ADDR(wusb_dev->addr); + + ret = whc_update_di(whc, idx); + + mutex_unlock(&whc->mutex); + + return ret; +} + +/* + * Set the number of Device Notification Time Slots (DNTS) and enable + * device notifications. + */ +int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + u32 dntsctrl; + + dntsctrl = WUSBDNTSCTRL_ACTIVE + | WUSBDNTSCTRL_INTERVAL(interval) + | WUSBDNTSCTRL_SLOTS(slots); + + le_writel(dntsctrl, whc->base + WUSBDNTSCTRL); + + return 0; +} + +static int whc_set_key(struct whc *whc, u8 key_index, uint32_t tkid, + const void *key, size_t key_size, bool is_gtk) +{ + uint32_t setkeycmd; + uint32_t seckey[4]; + int i; + int ret; + + memcpy(seckey, key, key_size); + setkeycmd = WUSBSETSECKEYCMD_SET | WUSBSETSECKEYCMD_IDX(key_index); + if (is_gtk) + setkeycmd |= WUSBSETSECKEYCMD_GTK; + + le_writel(tkid, whc->base + WUSBTKID); + for (i = 0; i < 4; i++) + le_writel(seckey[i], whc->base + WUSBSECKEY + 4*i); + le_writel(setkeycmd, whc->base + WUSBSETSECKEYCMD); + + ret = whci_wait_for(&whc->umc->dev, whc->base + WUSBSETSECKEYCMD, + WUSBSETSECKEYCMD_SET, 0, 100, "set key"); + + return ret; +} + +/** + * whc_set_ptk - set the PTK to use for a device. + * + * The index into the key table for this PTK is the same as the + * device's port index. + */ +int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid, + const void *ptk, size_t key_size) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + struct di_buf_entry *di = &whc->di_buf[port_idx]; + int ret; + + mutex_lock(&whc->mutex); + + if (ptk) { + ret = whc_set_key(whc, port_idx, tkid, ptk, key_size, false); + if (ret) + goto out; + + di->addr_sec_info &= ~WHC_DI_KEY_IDX_MASK; + di->addr_sec_info |= WHC_DI_SECURE | WHC_DI_KEY_IDX(port_idx); + } else + di->addr_sec_info &= ~WHC_DI_SECURE; + + ret = whc_update_di(whc, port_idx); +out: + mutex_unlock(&whc->mutex); + return ret; +} + +/** + * whc_set_gtk - set the GTK for subsequent broadcast packets + * + * The GTK is stored in the last entry in the key table (the previous + * N_DEVICES entries are for the per-device PTKs). + */ +int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid, + const void *gtk, size_t key_size) +{ + struct whc *whc = wusbhc_to_whc(wusbhc); + int ret; + + mutex_lock(&whc->mutex); + + ret = whc_set_key(whc, whc->n_devices, tkid, gtk, key_size, true); + + mutex_unlock(&whc->mutex); + + return ret; +} + +int whc_set_cluster_id(struct whc *whc, u8 bcid) +{ + whc_write_wusbcmd(whc, WUSBCMD_BCID_MASK, WUSBCMD_BCID(bcid)); + return 0; +} diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig index 001789c9a11a..ee79c619d89b 100644 --- a/drivers/usb/misc/Kconfig +++ b/drivers/usb/misc/Kconfig @@ -281,3 +281,13 @@ config USB_ISIGHTFW The firmware for this driver must be extracted from the MacOS driver beforehand. Tools for doing so are available at http://bersace03.free.fr + +config USB_GOTEMP + tristate "GoTemp USB thermometer driver support" + depends on USB + help + Say Y here if you want to connect a GoTemp USB thermometer + device to your computer's USB port. + + To compile this driver as a module, choose M here: the + module will be called gotemp. diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile index aba091cb5ec0..d783410ad562 100644 --- a/drivers/usb/misc/Makefile +++ b/drivers/usb/misc/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_USB_CYTHERM) += cytherm.o obj-$(CONFIG_USB_EMI26) += emi26.o obj-$(CONFIG_USB_EMI62) += emi62.o obj-$(CONFIG_USB_FTDI_ELAN) += ftdi-elan.o +obj-$(CONFIG_USB_GOTEMP) += gotemp.o obj-$(CONFIG_USB_IDMOUSE) += idmouse.o obj-$(CONFIG_USB_IOWARRIOR) += iowarrior.o obj-$(CONFIG_USB_ISIGHTFW) += isight_firmware.o diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c index 093938697426..d2f61d5510e7 100644 --- a/drivers/usb/misc/auerswald.c +++ b/drivers/usb/misc/auerswald.c @@ -1421,7 +1421,8 @@ ofail: mutex_unlock(&cp->mutex); /* IOCTL functions */ -static int auerchar_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long auerchar_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { pauerchar_t ccp = (pauerchar_t) file->private_data; int ret = 0; @@ -1452,7 +1453,7 @@ static int auerchar_ioctl (struct inode *inode, struct file *file, unsigned int mutex_unlock(&ccp->mutex); return -ENODEV; } - + lock_kernel(); switch (cmd) { /* return != 0 if Transmitt channel ready to send */ @@ -1547,9 +1548,10 @@ static int auerchar_ioctl (struct inode *inode, struct file *file, unsigned int default: dbg ("IOCTL_AU_UNKNOWN"); - ret = -ENOIOCTLCMD; + ret = -ENOTTY; break; } + unlock_kernel(); /* release the mutexes */ mutex_unlock(&cp->mutex); mutex_unlock(&ccp->mutex); @@ -1860,7 +1862,7 @@ static const struct file_operations auerswald_fops = .llseek = no_llseek, .read = auerchar_read, .write = auerchar_write, - .ioctl = auerchar_ioctl, + .unlocked_ioctl = auerchar_ioctl, .open = auerchar_open, .release = auerchar_release, }; diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c index 1a2b79ac5e10..0b1727d4308b 100644 --- a/drivers/usb/misc/emi62.c +++ b/drivers/usb/misc/emi62.c @@ -6,8 +6,6 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, as published by * the Free Software Foundation, version 2. - * - * $Id: emi62.c,v 1.15 2002/04/23 06:13:59 tapio Exp $ */ #include <linux/kernel.h> #include <linux/errno.h> diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c index ec88b3bfee46..97c280971532 100644 --- a/drivers/usb/misc/ftdi-elan.c +++ b/drivers/usb/misc/ftdi-elan.c @@ -656,29 +656,6 @@ static int ftdi_elan_release(struct inode *inode, struct file *file) } -#define FTDI_ELAN_IOC_MAGIC 0xA1 -#define FTDI_ELAN_IOCDEBUG _IOC(_IOC_WRITE, FTDI_ELAN_IOC_MAGIC, 1, 132) -static int ftdi_elan_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - switch (cmd) { - case FTDI_ELAN_IOCDEBUG:{ - char line[132]; - int size = strncpy_from_user(line, - (const char __user *)arg, sizeof(line)); - if (size < 0) { - return -EINVAL; - } else { - printk(KERN_ERR "TODO: ioctl %s\n", line); - return 0; - } - } - default: - return -EFAULT; - } -} - - /* * * blocking bulk reads are used to get data from the device @@ -1222,7 +1199,6 @@ error_1: static const struct file_operations ftdi_elan_fops = { .owner = THIS_MODULE, .llseek = no_llseek, - .ioctl = ftdi_elan_ioctl, .read = ftdi_elan_read, .write = ftdi_elan_write, .open = ftdi_elan_open, diff --git a/drivers/usb/misc/gotemp.c b/drivers/usb/misc/gotemp.c new file mode 100644 index 000000000000..0c04ef736edc --- /dev/null +++ b/drivers/usb/misc/gotemp.c @@ -0,0 +1,301 @@ +/* + * USB GoTemp driver + * + * Copyright (C) 2005 Greg Kroah-Hartman (greg@kroah.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2. + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/usb.h> + + +#define DRIVER_AUTHOR "Greg Kroah-Hartman, greg@kroah.com" +#define DRIVER_DESC "USB GoTemp driver" + +#define VENDOR_ID 0x08f7 +#define PRODUCT_ID 0x0002 + +/* table of devices that work with this driver */ +static struct usb_device_id id_table [] = { + { USB_DEVICE(VENDOR_ID, PRODUCT_ID) }, + { }, +}; +MODULE_DEVICE_TABLE(usb, id_table); + +struct gotemp { + struct usb_device *udev; + int temp; + unsigned char *int_in_buffer; + __u8 int_in_endpointAddr; + struct urb *int_in_urb; +}; + +#define CMD_ID_GET_STATUS 0x10 +#define CMD_ID_WRITE_LOCAL_NV_MEM_1BYTE 0x11 +#define CMD_ID_WRITE_LOCAL_NV_MEM_2BYTES 0x12 +#define CMD_ID_WRITE_LOCAL_NV_MEM_3BYTES 0x13 +#define CMD_ID_WRITE_LOCAL_NV_MEM_4BYTES 0x14 +#define CMD_ID_WRITE_LOCAL_NV_MEM_5BYTES 0x15 +#define CMD_ID_WRITE_LOCAL_NV_MEM_6BYTES 0x16 +#define CMD_ID_READ_LOCAL_NV_MEM 0x17 +#define CMD_ID_START_MEASUREMENTS 0x18 +#define CMD_ID_STOP_MEASUREMENTS 0x19 +#define CMD_ID_INIT 0x1A +#define CMD_ID_SET_MEASUREMENT_PERIOD 0x1B +#define CMD_ID_GET_MEASUREMENT_PERIOD 0x1C +#define CMD_ID_SET_LED_STATE 0x1D +#define CMD_ID_GET_LED_STATE 0x1E +#define CMD_ID_GET_SERIAL_NUMBER 0x20 + +struct output_packet { + u8 cmd; + u8 params[7]; +} __attribute__ ((packed)); + +struct measurement_packet { + u8 measurements_in_packet; + u8 rolling_counter; + __le16 measurement0; + __le16 measurement1; + __le16 measurement2; +} __attribute__ ((packed)); + +static int send_cmd(struct gotemp *gdev, u8 cmd) +{ + struct output_packet *pkt; + int retval; + + pkt = kzalloc(sizeof(*pkt), GFP_KERNEL); + if (!pkt) + return -ENOMEM; + pkt->cmd = cmd; + + retval = usb_control_msg(gdev->udev, + usb_sndctrlpipe(gdev->udev, 0), + 0x09, /* bRequest = SET_REPORT */ + 0x21, /* bRequestType = 00100001 */ + 0x0200, /* or is it 0x0002? */ + 0x0000, /* interface 0 */ + pkt, sizeof(*pkt), 10000); + dev_dbg(&gdev->udev->dev, "retval=%d\n", retval); + if (retval == sizeof(*pkt)) + retval = 0; + + kfree(pkt); + return retval; +} + +static void init_dev(struct gotemp *gdev) +{ + int retval; + + /* First send an init message */ + send_cmd(gdev, CMD_ID_INIT); + + /* hack hack hack */ + /* problem is, we want a usb_interrupt_msg() call to read the interrupt + * endpoint right now. only after it is flushed, can we properly start + * up the measurements. */ + msleep(1000); + + /* kick off interrupt urb */ + retval = usb_submit_urb(gdev->int_in_urb, GFP_KERNEL); + if (retval) + dev_err(&gdev->udev->dev, + "%s - Error %d submitting interrupt urb\n", + __func__, retval); + + msleep(3000); + send_cmd(gdev, CMD_ID_START_MEASUREMENTS); +} + +static ssize_t show_temp(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct gotemp *gdev = usb_get_intfdata(intf); + + return sprintf(buf, "%d\n", gdev->temp); +} + +static DEVICE_ATTR(temp, S_IRUGO, show_temp, NULL); + +static void read_int_callback(struct urb *urb) +{ + struct gotemp *gdev = urb->context; + unsigned char *data = urb->transfer_buffer; + struct measurement_packet *measurement = urb->transfer_buffer; + int retval; + int i; + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", + __func__, urb->status); + return; + default: + dbg("%s - nonzero urb status received: %d", + __func__, urb->status); + goto exit; + } + + dev_info(&urb->dev->dev, "int read data: "); + for (i = 0; i < urb->actual_length; ++i) + printk("%02x ", data[i]); + printk("\n"); + + dev_dbg(&urb->dev->dev, "counter %d, temp=%d\n", + measurement->rolling_counter, + measurement->measurement0); + gdev->temp = le16_to_cpu(measurement->measurement0); + +exit: + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) + dev_err(&urb->dev->dev, + "%s - Error %d submitting interrupt urb\n", + __func__, retval); +} + +static int gotemp_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(interface); + struct gotemp *gdev = NULL; + int retval = -ENOMEM; + int i; + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint = NULL; + size_t buffer_size = 0; + + gdev = kzalloc(sizeof(struct gotemp), GFP_KERNEL); + if (gdev == NULL) { + dev_err(&interface->dev, "Out of memory\n"); + goto error; + } + + gdev->udev = usb_get_dev(udev); + + /* find the one control endpoint of this device */ + iface_desc = interface->cur_altsetting; + for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { + endpoint = &iface_desc->endpoint[i].desc; + + if (usb_endpoint_is_int_in(endpoint)) { + buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); + gdev->int_in_endpointAddr = endpoint->bEndpointAddress; + gdev->int_in_buffer = kmalloc(buffer_size, GFP_KERNEL); + if (!gdev->int_in_buffer) { + dev_err(&interface->dev, + "Could not allocate buffer"); + goto error; + } + break; + } + } + if (!gdev->int_in_endpointAddr) { + dev_err(&interface->dev, "Could not find int-in endpoint"); + retval = -ENODEV; + goto error; + } + + gdev->int_in_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!gdev->int_in_urb) { + dev_err(&interface->dev, "No free urbs available\n"); + goto error; + } + usb_fill_int_urb(gdev->int_in_urb, udev, + usb_rcvintpipe(udev, + endpoint->bEndpointAddress), + gdev->int_in_buffer, buffer_size, + read_int_callback, gdev, + endpoint->bInterval); + + usb_set_intfdata(interface, gdev); + + init_dev(gdev); + + /* + * this must come last - after this call the device is active + * if we delayed any initialization until after this, the user + * would read garbage + */ + retval = device_create_file(&interface->dev, &dev_attr_temp); + if (retval) + goto error; + + dev_info(&interface->dev, "USB GoTemp device now attached\n"); + return 0; + +error: + usb_set_intfdata(interface, NULL); + if (gdev) { + usb_free_urb(gdev->int_in_urb); + kfree(gdev->int_in_buffer); + } + kfree(gdev); + return retval; +} + +static void gotemp_disconnect(struct usb_interface *interface) +{ + struct gotemp *gdev; + + gdev = usb_get_intfdata(interface); + + device_remove_file(&interface->dev, &dev_attr_temp); + /* intfdata must remain valid while reads are under way */ + usb_set_intfdata(interface, NULL); + + usb_put_dev(gdev->udev); + + usb_kill_urb(gdev->int_in_urb); + usb_free_urb(gdev->int_in_urb); + kfree(gdev->int_in_buffer); + kfree(gdev); + + dev_info(&interface->dev, "USB GoTemp now disconnected\n"); +} + +static struct usb_driver gotemp_driver = { + .name = "gotemp", + .probe = gotemp_probe, + .disconnect = gotemp_disconnect, + .id_table = id_table, +}; + +static int __init gotemp_init(void) +{ + int retval = 0; + + retval = usb_register(&gotemp_driver); + if (retval) + err("usb_register failed. Error number %d", retval); + return retval; +} + +static void __exit gotemp_exit(void) +{ + usb_deregister(&gotemp_driver); +} + +module_init(gotemp_init); +module_exit(gotemp_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index 1cb54a28347f..e6ca9979e3ae 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -474,8 +474,8 @@ exit: /** * iowarrior_ioctl */ -static int iowarrior_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long iowarrior_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { struct iowarrior *dev = NULL; __u8 *buffer; @@ -493,6 +493,7 @@ static int iowarrior_ioctl(struct inode *inode, struct file *file, return -ENOMEM; /* lock this object */ + lock_kernel(); mutex_lock(&dev->mutex); /* verify that the device wasn't unplugged */ @@ -584,6 +585,7 @@ static int iowarrior_ioctl(struct inode *inode, struct file *file, error_out: /* unlock the device */ mutex_unlock(&dev->mutex); + unlock_kernel(); kfree(buffer); return retval; } @@ -719,7 +721,7 @@ static const struct file_operations iowarrior_fops = { .owner = THIS_MODULE, .write = iowarrior_write, .read = iowarrior_read, - .ioctl = iowarrior_ioctl, + .unlocked_ioctl = iowarrior_ioctl, .open = iowarrior_open, .release = iowarrior_release, .poll = iowarrior_poll, diff --git a/drivers/usb/misc/isight_firmware.c b/drivers/usb/misc/isight_firmware.c index 9f30aa1f8a5d..d94aa7387608 100644 --- a/drivers/usb/misc/isight_firmware.c +++ b/drivers/usb/misc/isight_firmware.c @@ -41,7 +41,7 @@ static int isight_firmware_load(struct usb_interface *intf, const struct firmware *firmware; unsigned char *buf = kmalloc(50, GFP_KERNEL); unsigned char data[4]; - u8 *ptr; + const u8 *ptr; if (!buf) return -ENOMEM; diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c index 330c18e390b8..248a12aacef6 100644 --- a/drivers/usb/misc/rio500.c +++ b/drivers/usb/misc/rio500.c @@ -104,9 +104,7 @@ static int close_rio(struct inode *inode, struct file *file) return 0; } -static int -ioctl_rio(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) +static long ioctl_rio(struct file *file, unsigned int cmd, unsigned long arg) { struct RioCommand rio_cmd; struct rio_usb_data *rio = &rio_instance; @@ -116,6 +114,7 @@ ioctl_rio(struct inode *inode, struct file *file, unsigned int cmd, int retries; int retval=0; + lock_kernel(); mutex_lock(&(rio->lock)); /* Sanity check to make sure rio is connected, powered, etc */ if (rio->present == 0 || rio->rio_dev == NULL) { @@ -254,6 +253,7 @@ ioctl_rio(struct inode *inode, struct file *file, unsigned int cmd, err_out: mutex_unlock(&(rio->lock)); + unlock_kernel(); return retval; } @@ -433,7 +433,7 @@ file_operations usb_rio_fops = { .owner = THIS_MODULE, .read = read_rio, .write = write_rio, - .ioctl = ioctl_rio, + .unlocked_ioctl = ioctl_rio, .open = open_rio, .release = close_rio, }; diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index cb7fa0eaf3ae..8dca796475e8 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -2982,9 +2982,8 @@ sisusb_handle_command(struct sisusb_usb_data *sisusb, struct sisusb_command *y, return retval; } -static int -sisusb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) +static long +sisusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct sisusb_usb_data *sisusb; struct sisusb_info x; @@ -2995,6 +2994,7 @@ sisusb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) return -ENODEV; + lock_kernel(); mutex_lock(&sisusb->lock); /* Sanity check */ @@ -3053,6 +3053,7 @@ sisusb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, err_out: mutex_unlock(&sisusb->lock); + unlock_kernel(); return retval; } @@ -3066,9 +3067,7 @@ sisusb_compat_ioctl(struct file *f, unsigned int cmd, unsigned long arg) case SISUSB_GET_CONFIG_SIZE: case SISUSB_GET_CONFIG: case SISUSB_COMMAND: - lock_kernel(); - retval = sisusb_ioctl(f->f_path.dentry->d_inode, f, cmd, arg); - unlock_kernel(); + retval = sisusb_ioctl(f, cmd, arg); return retval; default: @@ -3087,7 +3086,7 @@ static const struct file_operations usb_sisusb_fops = { #ifdef SISUSB_NEW_CONFIG_COMPAT .compat_ioctl = sisusb_compat_ioctl, #endif - .ioctl = sisusb_ioctl + .unlocked_ioctl = sisusb_ioctl }; static struct usb_class_driver usb_sisusb_class = { diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index 7f7021ee4189..2db4228fbb01 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c @@ -146,7 +146,7 @@ static ssize_t lcd_read(struct file *file, char __user * buffer, size_t count, l return retval; } -static int lcd_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long lcd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct usb_lcd *dev; u16 bcdDevice; @@ -158,12 +158,14 @@ static int lcd_ioctl(struct inode *inode, struct file *file, unsigned int cmd, u switch (cmd) { case IOCTL_GET_HARD_VERSION: + lock_kernel(); bcdDevice = le16_to_cpu((dev->udev)->descriptor.bcdDevice); sprintf(buf,"%1d%1d.%1d%1d", (bcdDevice & 0xF000)>>12, (bcdDevice & 0xF00)>>8, (bcdDevice & 0xF0)>>4, (bcdDevice & 0xF)); + unlock_kernel(); if (copy_to_user((void __user *)arg,buf,strlen(buf))!=0) return -EFAULT; break; @@ -272,7 +274,7 @@ static const struct file_operations lcd_fops = { .read = lcd_read, .write = lcd_write, .open = lcd_open, - .ioctl = lcd_ioctl, + .unlocked_ioctl = lcd_ioctl, .release = lcd_release, }; diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index 49145534e06e..5f7d7e283fc1 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -1156,8 +1156,9 @@ int mon_bin_add(struct mon_bus *mbus, const struct usb_bus *ubus) if (minor >= MON_BIN_MAX_MINOR) return 0; - dev = device_create(mon_bin_class, ubus? ubus->controller: NULL, - MKDEV(MAJOR(mon_bin_dev0), minor), "usbmon%d", minor); + dev = device_create_drvdata(mon_bin_class, ubus? ubus->controller: NULL, + MKDEV(MAJOR(mon_bin_dev0), minor), NULL, + "usbmon%d", minor); if (IS_ERR(dev)) return 0; diff --git a/drivers/usb/mon/mon_stat.c b/drivers/usb/mon/mon_stat.c index c7a595cd648a..ac8b0d5ce7f8 100644 --- a/drivers/usb/mon/mon_stat.c +++ b/drivers/usb/mon/mon_stat.c @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/usb.h> +#include <linux/fs.h> #include <asm/uaccess.h> #include "usb_mon.h" @@ -42,19 +43,8 @@ static ssize_t mon_stat_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { struct snap *sp = file->private_data; - loff_t pos = *ppos; - int cnt; - if (pos < 0 || pos >= sp->slen) - return 0; - if (nbytes == 0) - return 0; - if ((cnt = sp->slen - pos) > nbytes) - cnt = nbytes; - if (copy_to_user(buf, sp->str + pos, cnt)) - return -EFAULT; - *ppos = pos + cnt; - return cnt; + return simple_read_from_buffer(buf, nbytes, ppos, sp->str, sp->slen); } static int mon_stat_release(struct inode *inode, struct file *file) diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index 9ba64ccc1359..1db069efeea6 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig @@ -64,14 +64,6 @@ config USB_SERIAL_AIRCABLE To compile this driver as a module, choose M here: the module will be called aircable. -config USB_SERIAL_AIRPRIME - tristate "USB AirPrime CDMA Wireless Driver" - help - Say Y here if you want to use a AirPrime CDMA Wireless PC card. - - To compile this driver as a module, choose M here: the - module will be called airprime. - config USB_SERIAL_ARK3116 tristate "USB ARK Micro 3116 USB Serial Driver" help @@ -523,6 +515,14 @@ config USB_SERIAL_TI To compile this driver as a module, choose M here: the module will be called ti_usb_3410_5052. +config USB_SERIAL_TI_FIRMWARE + bool "USB TI 3410/5052 Firmware" + depends on USB_SERIAL_TI + help + say Y to include the firmware into the kernel for compatibility + with older setups. Say N if you have the firmware files installed + in /etc/firmware. + config USB_SERIAL_CYBERJACK tristate "USB REINER SCT cyberJack pinpad/e-com chipcard reader" ---help--- diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile index 17a762ab6769..6047f818adfe 100644 --- a/drivers/usb/serial/Makefile +++ b/drivers/usb/serial/Makefile @@ -12,7 +12,6 @@ usbserial-obj-$(CONFIG_USB_EZUSB) += ezusb.o usbserial-objs := usb-serial.o generic.o bus.o $(usbserial-obj-y) obj-$(CONFIG_USB_SERIAL_AIRCABLE) += aircable.o -obj-$(CONFIG_USB_SERIAL_AIRPRIME) += airprime.o obj-$(CONFIG_USB_SERIAL_ARK3116) += ark3116.o obj-$(CONFIG_USB_SERIAL_BELKIN) += belkin_sa.o obj-$(CONFIG_USB_SERIAL_CH341) += ch341.o diff --git a/drivers/usb/serial/airprime.c b/drivers/usb/serial/airprime.c deleted file mode 100644 index 0798c14ce787..000000000000 --- a/drivers/usb/serial/airprime.c +++ /dev/null @@ -1,353 +0,0 @@ -/* - * AirPrime CDMA Wireless Serial USB driver - * - * Copyright (C) 2005-2006 Greg Kroah-Hartman <gregkh@suse.de> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <linux/tty_flip.h> -#include <linux/module.h> -#include <linux/usb.h> -#include <linux/usb/serial.h> - -static struct usb_device_id id_table [] = { - { USB_DEVICE(0x0c88, 0x17da) }, /* Kyocera Wireless KPC650/Passport */ - { }, -}; -MODULE_DEVICE_TABLE(usb, id_table); - -#define URB_TRANSFER_BUFFER_SIZE 4096 -#define NUM_READ_URBS 4 -#define NUM_WRITE_URBS 4 -#define NUM_BULK_EPS 3 -#define MAX_BULK_EPS 6 - -/* if overridden by the user, then use their value for the size of the - * read and write urbs, and the number of endpoints */ -static int buffer_size = URB_TRANSFER_BUFFER_SIZE; -static int endpoints = NUM_BULK_EPS; -static int debug; -struct airprime_private { - spinlock_t lock; - int outstanding_urbs; - int throttled; - struct urb *read_urbp[NUM_READ_URBS]; - - /* Settings for the port */ - int rts_state; /* Handshaking pins (outputs) */ - int dtr_state; - int cts_state; /* Handshaking pins (inputs) */ - int dsr_state; - int dcd_state; - int ri_state; -}; - -static int airprime_send_setup(struct usb_serial_port *port) -{ - struct usb_serial *serial = port->serial; - struct airprime_private *priv; - - dbg("%s", __func__); - - if (port->number != 0) - return 0; - - priv = usb_get_serial_port_data(port); - - if (port->tty) { - int val = 0; - if (priv->dtr_state) - val |= 0x01; - if (priv->rts_state) - val |= 0x02; - - return usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), - 0x22, 0x21, val, 0, NULL, 0, - USB_CTRL_SET_TIMEOUT); - } - - return 0; -} - -static void airprime_read_bulk_callback(struct urb *urb) -{ - struct usb_serial_port *port = urb->context; - unsigned char *data = urb->transfer_buffer; - struct tty_struct *tty; - int result; - int status = urb->status; - - dbg("%s - port %d", __func__, port->number); - - if (status) { - dbg("%s - nonzero read bulk status received: %d", - __func__, status); - return; - } - usb_serial_debug_data(debug, &port->dev, __func__, - urb->actual_length, data); - - tty = port->tty; - if (tty && urb->actual_length) { - tty_insert_flip_string(tty, data, urb->actual_length); - tty_flip_buffer_push(tty); - } - - result = usb_submit_urb(urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, - "%s - failed resubmitting read urb, error %d\n", - __func__, result); - return; -} - -static void airprime_write_bulk_callback(struct urb *urb) -{ - struct usb_serial_port *port = urb->context; - struct airprime_private *priv = usb_get_serial_port_data(port); - int status = urb->status; - unsigned long flags; - - dbg("%s - port %d", __func__, port->number); - - /* free up the transfer buffer, as usb_free_urb() does not do this */ - kfree(urb->transfer_buffer); - - if (status) - dbg("%s - nonzero write bulk status received: %d", - __func__, status); - spin_lock_irqsave(&priv->lock, flags); - --priv->outstanding_urbs; - spin_unlock_irqrestore(&priv->lock, flags); - - usb_serial_port_softint(port); -} - -static int airprime_open(struct usb_serial_port *port, struct file *filp) -{ - struct airprime_private *priv = usb_get_serial_port_data(port); - struct usb_serial *serial = port->serial; - struct urb *urb; - char *buffer = NULL; - int i; - int result = 0; - - dbg("%s - port %d", __func__, port->number); - - /* initialize our private data structure if it isn't already created */ - if (!priv) { - priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (!priv) { - result = -ENOMEM; - goto out; - } - spin_lock_init(&priv->lock); - usb_set_serial_port_data(port, priv); - } - - /* Set some sane defaults */ - priv->rts_state = 1; - priv->dtr_state = 1; - - for (i = 0; i < NUM_READ_URBS; ++i) { - buffer = kmalloc(buffer_size, GFP_KERNEL); - if (!buffer) { - dev_err(&port->dev, "%s - out of memory.\n", - __func__); - result = -ENOMEM; - goto errout; - } - urb = usb_alloc_urb(0, GFP_KERNEL); - if (!urb) { - kfree(buffer); - dev_err(&port->dev, "%s - no more urbs?\n", - __func__); - result = -ENOMEM; - goto errout; - } - usb_fill_bulk_urb(urb, serial->dev, - usb_rcvbulkpipe(serial->dev, - port->bulk_out_endpointAddress), - buffer, buffer_size, - airprime_read_bulk_callback, port); - result = usb_submit_urb(urb, GFP_KERNEL); - if (result) { - usb_free_urb(urb); - kfree(buffer); - dev_err(&port->dev, - "%s - failed submitting read urb %d for port %d, error %d\n", - __func__, i, port->number, result); - goto errout; - } - /* remember this urb so we can kill it when the - port is closed */ - priv->read_urbp[i] = urb; - } - - airprime_send_setup(port); - - goto out; - - errout: - /* some error happened, cancel any submitted urbs and clean up - anything that got allocated successfully */ - - while (i-- != 0) { - urb = priv->read_urbp[i]; - buffer = urb->transfer_buffer; - usb_kill_urb(urb); - usb_free_urb(urb); - kfree(buffer); - } - - out: - return result; -} - -static void airprime_close(struct usb_serial_port *port, struct file *filp) -{ - struct airprime_private *priv = usb_get_serial_port_data(port); - int i; - - dbg("%s - port %d", __func__, port->number); - - priv->rts_state = 0; - priv->dtr_state = 0; - - mutex_lock(&port->serial->disc_mutex); - if (!port->serial->disconnected) - airprime_send_setup(port); - mutex_unlock(&port->serial->disc_mutex); - - for (i = 0; i < NUM_READ_URBS; ++i) { - usb_kill_urb(priv->read_urbp[i]); - kfree(priv->read_urbp[i]->transfer_buffer); - usb_free_urb(priv->read_urbp[i]); - } - - /* free up private structure */ - kfree(priv); - usb_set_serial_port_data(port, NULL); -} - -static int airprime_write(struct usb_serial_port *port, - const unsigned char *buf, int count) -{ - struct airprime_private *priv = usb_get_serial_port_data(port); - struct usb_serial *serial = port->serial; - struct urb *urb; - unsigned char *buffer; - unsigned long flags; - int status; - dbg("%s - port %d", __func__, port->number); - - spin_lock_irqsave(&priv->lock, flags); - if (priv->outstanding_urbs > NUM_WRITE_URBS) { - spin_unlock_irqrestore(&priv->lock, flags); - dbg("%s - write limit hit\n", __func__); - return 0; - } - spin_unlock_irqrestore(&priv->lock, flags); - buffer = kmalloc(count, GFP_ATOMIC); - if (!buffer) { - dev_err(&port->dev, "out of memory\n"); - return -ENOMEM; - } - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - dev_err(&port->dev, "no more free urbs\n"); - kfree(buffer); - return -ENOMEM; - } - memcpy(buffer, buf, count); - - usb_serial_debug_data(debug, &port->dev, __func__, count, buffer); - - usb_fill_bulk_urb(urb, serial->dev, - usb_sndbulkpipe(serial->dev, - port->bulk_out_endpointAddress), - buffer, count, - airprime_write_bulk_callback, port); - - /* send it down the pipe */ - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status) { - dev_err(&port->dev, - "%s - usb_submit_urb(write bulk) failed with status = %d\n", - __func__, status); - count = status; - kfree(buffer); - } else { - spin_lock_irqsave(&priv->lock, flags); - ++priv->outstanding_urbs; - spin_unlock_irqrestore(&priv->lock, flags); - } - /* we are done with this urb, so let the host driver - * really free it when it is finished with it */ - usb_free_urb(urb); - return count; -} - -static struct usb_driver airprime_driver = { - .name = "airprime", - .probe = usb_serial_probe, - .disconnect = usb_serial_disconnect, - .id_table = id_table, - .no_dynamic_id = 1, -}; - -static struct usb_serial_driver airprime_device = { - .driver = { - .owner = THIS_MODULE, - .name = "airprime", - }, - .usb_driver = &airprime_driver, - .id_table = id_table, - .open = airprime_open, - .close = airprime_close, - .write = airprime_write, -}; - -static int __init airprime_init(void) -{ - int retval; - - airprime_device.num_ports = endpoints; - if (endpoints < 0 || endpoints >= MAX_BULK_EPS) - airprime_device.num_ports = NUM_BULK_EPS; - - retval = usb_serial_register(&airprime_device); - if (retval) - return retval; - retval = usb_register(&airprime_driver); - if (retval) - usb_serial_deregister(&airprime_device); - return retval; -} - -static void __exit airprime_exit(void) -{ - dbg("%s", __func__); - - usb_deregister(&airprime_driver); - usb_serial_deregister(&airprime_device); -} - -module_init(airprime_init); -module_exit(airprime_exit); -MODULE_LICENSE("GPL"); - -module_param(debug, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Debug enabled"); -module_param(buffer_size, int, 0); -MODULE_PARM_DESC(buffer_size, - "Size of the transfer buffers in bytes (default 4096)"); -module_param(endpoints, int, 0); -MODULE_PARM_DESC(endpoints, "Number of bulk EPs to configure (default 3)"); diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c index f5b57b196c5a..2bc5576c443a 100644 --- a/drivers/usb/serial/cp2101.c +++ b/drivers/usb/serial/cp2101.c @@ -365,8 +365,8 @@ static void cp2101_close (struct usb_serial_port *port, struct file * filp) static void cp2101_get_termios (struct usb_serial_port *port) { unsigned int cflag, modem_ctl[4]; - int baud; - int bits; + unsigned int baud; + unsigned int bits; dbg("%s - port %d", __func__, port->number); @@ -498,7 +498,7 @@ static void cp2101_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) { unsigned int cflag, old_cflag; - int baud=0, bits; + unsigned int baud = 0, bits; unsigned int modem_ctl[4]; dbg("%s - port %d", __func__, port->number); @@ -654,7 +654,7 @@ static void cp2101_set_termios (struct usb_serial_port *port, static int cp2101_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear) { - int control = 0; + unsigned int control = 0; dbg("%s - port %d", __func__, port->number); @@ -683,7 +683,8 @@ static int cp2101_tiocmset (struct usb_serial_port *port, struct file *file, static int cp2101_tiocmget (struct usb_serial_port *port, struct file *file) { - int control, result; + unsigned int control; + int result; dbg("%s - port %d", __func__, port->number); @@ -703,7 +704,7 @@ static int cp2101_tiocmget (struct usb_serial_port *port, struct file *file) static void cp2101_break_ctl (struct usb_serial_port *port, int break_state) { - int state; + unsigned int state; dbg("%s - port %d", __func__, port->number); if (break_state == 0) diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 04a56f300ea6..28bc6fcf44f0 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -229,8 +229,6 @@ * in case a wake up is lost. * - Following Documentation/DocBook/kernel-locking.pdf no spin locks * are held when calling copy_to/from_user or printk. -* -* $Id: digi_acceleport.c,v 1.80.1.2 2000/11/02 05:45:08 root Exp $ */ #include <linux/kernel.h> @@ -573,6 +571,7 @@ static struct usb_serial_driver digi_acceleport_4_device = { static long cond_wait_interruptible_timeout_irqrestore( wait_queue_head_t *q, long timeout, spinlock_t *lock, unsigned long flags) +__releases(lock) { DEFINE_WAIT(wait); diff --git a/drivers/usb/serial/io_fw_down3.h b/drivers/usb/serial/io_fw_down3.h index 4496b068c50f..9dcaf17d5053 100644 --- a/drivers/usb/serial/io_fw_down3.h +++ b/drivers/usb/serial/io_fw_down3.h @@ -5,22 +5,22 @@ //************************************************************** -static int IMAGE_SIZE = 12938; +static const int fw_size = 12938; -struct EDGE_FIRMWARE_VERSION_INFO +struct fw_revision { unsigned char MajorVersion; unsigned char MinorVersion; unsigned short BuildNumber; }; -static struct EDGE_FIRMWARE_VERSION_INFO IMAGE_VERSION_NAME = +static const struct fw_revision fw_version = { 4, 80, 0 // Major, Minor, Build }; -static unsigned char IMAGE_ARRAY_NAME[] = +static const unsigned char fw_image[] = { // struct ImageHdr // { @@ -841,7 +841,4 @@ static unsigned char IMAGE_ARRAY_NAME[] = 0x12, 0x1e, 0x14, 0x22, 0xc2, 0x08, 0x22, }; -#undef IMAGE_VERSION_NAME - -#undef IMAGE_ARRAY_NAME diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 05e4fa730730..2c50318ca114 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -18,8 +18,8 @@ * * Version history: * - * July 11, 2002 Removed 4 port device structure since all TI UMP - * chips have only 2 ports + * July 11, 2002 Removed 4 port device structure since all TI UMP + * chips have only 2 ports * David Iacovelli (davidi@ionetworks.com) * */ @@ -37,7 +37,7 @@ #include <linux/mutex.h> #include <linux/serial.h> #include <linux/ioctl.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> @@ -54,27 +54,25 @@ /* firmware image code */ -#define IMAGE_VERSION_NAME PagableOperationalCodeImageVersion -#define IMAGE_ARRAY_NAME PagableOperationalCodeImage -#define IMAGE_SIZE PagableOperationalCodeSize -#include "io_fw_down3.h" /* Define array OperationalCodeImage[] */ +#include "io_fw_down3.h" /* Define array fw_image[] */ #define EPROM_PAGE_SIZE 64 struct edgeport_uart_buf_desc { - __u32 count; // Number of bytes currently in buffer + __u32 count; /* Number of bytes currently in buffer */ }; /* different hardware types */ #define HARDWARE_TYPE_930 0 #define HARDWARE_TYPE_TIUMP 1 -// IOCTL_PRIVATE_TI_GET_MODE Definitions -#define TI_MODE_CONFIGURING 0 // Device has not entered start device -#define TI_MODE_BOOT 1 // Staying in boot mode -#define TI_MODE_DOWNLOAD 2 // Made it to download mode -#define TI_MODE_TRANSITIONING 3 // Currently in boot mode but transitioning to download mode +/* IOCTL_PRIVATE_TI_GET_MODE Definitions */ +#define TI_MODE_CONFIGURING 0 /* Device has not entered start device */ +#define TI_MODE_BOOT 1 /* Staying in boot mode */ +#define TI_MODE_DOWNLOAD 2 /* Made it to download mode */ +#define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but + transitioning to download mode */ /* read urb state */ #define EDGE_READ_URB_RUNNING 0 @@ -88,10 +86,9 @@ struct edgeport_uart_buf_desc { /* Product information read from the Edgeport */ -struct product_info -{ - int TiMode; // Current TI Mode - __u8 hardware_type; // Type of hardware +struct product_info { + int TiMode; /* Current TI Mode */ + __u8 hardware_type; /* Type of hardware */ } __attribute__((packed)); /* circular buffer */ @@ -122,7 +119,7 @@ struct edgeport_port { happen */ struct edgeport_serial *edge_serial; struct usb_serial_port *port; - __u8 bUartMode; /* Port type, 0: RS232, etc. */ + __u8 bUartMode; /* Port type, 0: RS232, etc. */ spinlock_t ep_lock; int ep_read_urb_state; int ep_write_urb_in_use; @@ -131,8 +128,9 @@ struct edgeport_port { struct edgeport_serial { struct product_info product_info; - u8 TI_I2C_Type; // Type of I2C in UMP - u8 TiReadI2C; // Set to TRUE if we have read the I2c in Boot Mode + u8 TI_I2C_Type; /* Type of I2C in UMP */ + u8 TiReadI2C; /* Set to TRUE if we have read the + I2c in Boot Mode */ struct mutex es_lock; int num_ports_open; struct usb_serial *serial; @@ -220,7 +218,7 @@ static struct usb_device_id id_table_combined [] = { { } }; -MODULE_DEVICE_TABLE (usb, id_table_combined); +MODULE_DEVICE_TABLE(usb, id_table_combined); static struct usb_driver io_driver = { .name = "io_ti", @@ -231,23 +229,24 @@ static struct usb_driver io_driver = { }; -static struct EDGE_FIRMWARE_VERSION_INFO OperationalCodeImageVersion; +static struct fw_revision op_fw_version; static int debug; -static int TIStayInBootMode = 0; static int low_latency = EDGE_LOW_LATENCY; static int closing_wait = EDGE_CLOSING_WAIT; -static int ignore_cpu_rev = 0; -static int default_uart_mode = 0; /* RS232 */ +static int ignore_cpu_rev; +static int default_uart_mode; /* RS232 */ -static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length); +static void edge_tty_recv(struct device *dev, struct tty_struct *tty, + unsigned char *data, int length); static void stop_read(struct edgeport_port *edge_port); static int restart_read(struct edgeport_port *edge_port); -static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); +static void edge_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios); static void edge_send(struct usb_serial_port *port); /* sysfs attributes */ @@ -266,87 +265,57 @@ static unsigned int edge_buf_get(struct edge_buf *eb, char *buf, unsigned int count); -static int TIReadVendorRequestSync (struct usb_device *dev, - __u8 request, - __u16 value, - __u16 index, - u8 *data, - int size) +static int ti_vread_sync(struct usb_device *dev, __u8 request, + __u16 value, __u16 index, u8 *data, int size) { int status; - status = usb_control_msg (dev, - usb_rcvctrlpipe(dev, 0), - request, - (USB_TYPE_VENDOR | - USB_RECIP_DEVICE | - USB_DIR_IN), - value, - index, - data, - size, - 1000); + status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, + (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), + value, index, data, size, 1000); if (status < 0) return status; if (status != size) { - dbg ("%s - wanted to write %d, but only wrote %d", - __func__, size, status); + dbg("%s - wanted to write %d, but only wrote %d", + __func__, size, status); return -ECOMM; } return 0; } -static int TISendVendorRequestSync (struct usb_device *dev, - __u8 request, - __u16 value, - __u16 index, - u8 *data, - int size) +static int ti_vsend_sync(struct usb_device *dev, __u8 request, + __u16 value, __u16 index, u8 *data, int size) { int status; - status = usb_control_msg (dev, - usb_sndctrlpipe(dev, 0), - request, - (USB_TYPE_VENDOR | - USB_RECIP_DEVICE | - USB_DIR_OUT), - value, - index, - data, - size, - 1000); + status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request, + (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), + value, index, data, size, 1000); if (status < 0) return status; if (status != size) { - dbg ("%s - wanted to write %d, but only wrote %d", + dbg("%s - wanted to write %d, but only wrote %d", __func__, size, status); return -ECOMM; } return 0; } -static int TIWriteCommandSync (struct usb_device *dev, __u8 command, +static int send_cmd(struct usb_device *dev, __u8 command, __u8 moduleid, __u16 value, u8 *data, int size) { - return TISendVendorRequestSync (dev, - command, // Request - value, // wValue - moduleid, // wIndex - data, // TransferBuffer - size); // TransferBufferLength - + return ti_vsend_sync(dev, command, value, moduleid, data, size); } /* clear tx/rx buffers and fifo in TI UMP */ -static int TIPurgeDataSync (struct usb_serial_port *port, __u16 mask) +static int purge_port(struct usb_serial_port *port, __u16 mask) { int port_number = port->number - port->serial->minor; - dbg ("%s - port %d, mask %x", __func__, port_number, mask); + dbg("%s - port %d, mask %x", __func__, port_number, mask); - return TIWriteCommandSync (port->serial->dev, + return send_cmd(port->serial->dev, UMPC_PURGE_PORT, (__u8)(UMPM_UART1_PORT + port_number), mask, @@ -355,92 +324,87 @@ static int TIPurgeDataSync (struct usb_serial_port *port, __u16 mask) } /** - * TIReadDownloadMemory - Read edgeport memory from TI chip + * read_download_mem - Read edgeport memory from TI chip * @dev: usb device pointer * @start_address: Device CPU address at which to read * @length: Length of above data * @address_type: Can read both XDATA and I2C * @buffer: pointer to input data buffer */ -static int TIReadDownloadMemory(struct usb_device *dev, int start_address, +static int read_download_mem(struct usb_device *dev, int start_address, int length, __u8 address_type, __u8 *buffer) { int status = 0; __u8 read_length; __be16 be_start_address; - - dbg ("%s - @ %x for %d", __func__, start_address, length); + + dbg("%s - @ %x for %d", __func__, start_address, length); /* Read in blocks of 64 bytes * (TI firmware can't handle more than 64 byte reads) */ while (length) { if (length > 64) - read_length= 64; + read_length = 64; else read_length = (__u8)length; if (read_length > 1) { - dbg ("%s - @ %x for %d", __func__, + dbg("%s - @ %x for %d", __func__, start_address, read_length); } - be_start_address = cpu_to_be16 (start_address); - status = TIReadVendorRequestSync (dev, - UMPC_MEMORY_READ, // Request - (__u16)address_type, // wValue (Address type) - (__force __u16)be_start_address, // wIndex (Address to read) - buffer, // TransferBuffer - read_length); // TransferBufferLength + be_start_address = cpu_to_be16(start_address); + status = ti_vread_sync(dev, UMPC_MEMORY_READ, + (__u16)address_type, + (__force __u16)be_start_address, + buffer, read_length); if (status) { - dbg ("%s - ERROR %x", __func__, status); + dbg("%s - ERROR %x", __func__, status); return status; } - if (read_length > 1) { + if (read_length > 1) usb_serial_debug_data(debug, &dev->dev, __func__, read_length, buffer); - } /* Update pointers/length */ start_address += read_length; buffer += read_length; length -= read_length; } - + return status; } -static int TIReadRam (struct usb_device *dev, int start_address, int length, __u8 *buffer) +static int read_ram(struct usb_device *dev, int start_address, + int length, __u8 *buffer) { - return TIReadDownloadMemory (dev, - start_address, - length, - DTK_ADDR_SPACE_XDATA, - buffer); + return read_download_mem(dev, start_address, length, + DTK_ADDR_SPACE_XDATA, buffer); } /* Read edgeport memory to a given block */ -static int TIReadBootMemory (struct edgeport_serial *serial, int start_address, int length, __u8 * buffer) +static int read_boot_mem(struct edgeport_serial *serial, + int start_address, int length, __u8 *buffer) { int status = 0; int i; - for (i=0; i< length; i++) { - status = TIReadVendorRequestSync (serial->serial->dev, - UMPC_MEMORY_READ, // Request - serial->TI_I2C_Type, // wValue (Address type) - (__u16)(start_address+i), // wIndex - &buffer[i], // TransferBuffer - 0x01); // TransferBufferLength + for (i = 0; i < length; i++) { + status = ti_vread_sync(serial->serial->dev, + UMPC_MEMORY_READ, serial->TI_I2C_Type, + (__u16)(start_address+i), &buffer[i], 0x01); if (status) { - dbg ("%s - ERROR %x", __func__, status); + dbg("%s - ERROR %x", __func__, status); return status; } } - dbg ("%s - start_address = %x, length = %d", __func__, start_address, length); - usb_serial_debug_data(debug, &serial->serial->dev->dev, __func__, length, buffer); + dbg("%s - start_address = %x, length = %d", + __func__, start_address, length); + usb_serial_debug_data(debug, &serial->serial->dev->dev, + __func__, length, buffer); serial->TiReadI2C = 1; @@ -448,7 +412,8 @@ static int TIReadBootMemory (struct edgeport_serial *serial, int start_address, } /* Write given block to TI EPROM memory */ -static int TIWriteBootMemory (struct edgeport_serial *serial, int start_address, int length, __u8 *buffer) +static int write_boot_mem(struct edgeport_serial *serial, + int start_address, int length, __u8 *buffer) { int status = 0; int i; @@ -456,57 +421,58 @@ static int TIWriteBootMemory (struct edgeport_serial *serial, int start_address, /* Must do a read before write */ if (!serial->TiReadI2C) { - status = TIReadBootMemory(serial, 0, 1, &temp); + status = read_boot_mem(serial, 0, 1, &temp); if (status) return status; } - for (i=0; i < length; ++i) { - status = TISendVendorRequestSync (serial->serial->dev, - UMPC_MEMORY_WRITE, // Request - buffer[i], // wValue - (__u16)(i+start_address), // wIndex - NULL, // TransferBuffer - 0); // TransferBufferLength + for (i = 0; i < length; ++i) { + status = ti_vsend_sync(serial->serial->dev, + UMPC_MEMORY_WRITE, buffer[i], + (__u16)(i + start_address), NULL, 0); if (status) return status; } - dbg ("%s - start_sddr = %x, length = %d", __func__, start_address, length); - usb_serial_debug_data(debug, &serial->serial->dev->dev, __func__, length, buffer); + dbg("%s - start_sddr = %x, length = %d", + __func__, start_address, length); + usb_serial_debug_data(debug, &serial->serial->dev->dev, + __func__, length, buffer); return status; } /* Write edgeport I2C memory to TI chip */ -static int TIWriteDownloadI2C (struct edgeport_serial *serial, int start_address, int length, __u8 address_type, __u8 *buffer) +static int write_i2c_mem(struct edgeport_serial *serial, + int start_address, int length, __u8 address_type, __u8 *buffer) { int status = 0; int write_length; __be16 be_start_address; /* We can only send a maximum of 1 aligned byte page at a time */ - + /* calulate the number of bytes left in the first page */ - write_length = EPROM_PAGE_SIZE - (start_address & (EPROM_PAGE_SIZE - 1)); + write_length = EPROM_PAGE_SIZE - + (start_address & (EPROM_PAGE_SIZE - 1)); if (write_length > length) write_length = length; - dbg ("%s - BytesInFirstPage Addr = %x, length = %d", __func__, start_address, write_length); - usb_serial_debug_data(debug, &serial->serial->dev->dev, __func__, write_length, buffer); + dbg("%s - BytesInFirstPage Addr = %x, length = %d", + __func__, start_address, write_length); + usb_serial_debug_data(debug, &serial->serial->dev->dev, + __func__, write_length, buffer); /* Write first page */ - be_start_address = cpu_to_be16 (start_address); - status = TISendVendorRequestSync (serial->serial->dev, - UMPC_MEMORY_WRITE, // Request - (__u16)address_type, // wValue - (__force __u16)be_start_address, // wIndex - buffer, // TransferBuffer - write_length); + be_start_address = cpu_to_be16(start_address); + status = ti_vsend_sync(serial->serial->dev, + UMPC_MEMORY_WRITE, (__u16)address_type, + (__force __u16)be_start_address, + buffer, write_length); if (status) { - dbg ("%s - ERROR %d", __func__, status); + dbg("%s - ERROR %d", __func__, status); return status; } @@ -514,29 +480,31 @@ static int TIWriteDownloadI2C (struct edgeport_serial *serial, int start_address start_address += write_length; buffer += write_length; - /* We should be aligned now -- can write max page size bytes at a time */ + /* We should be aligned now -- can write + max page size bytes at a time */ while (length) { if (length > EPROM_PAGE_SIZE) write_length = EPROM_PAGE_SIZE; else write_length = length; - dbg ("%s - Page Write Addr = %x, length = %d", __func__, start_address, write_length); - usb_serial_debug_data(debug, &serial->serial->dev->dev, __func__, write_length, buffer); + dbg("%s - Page Write Addr = %x, length = %d", + __func__, start_address, write_length); + usb_serial_debug_data(debug, &serial->serial->dev->dev, + __func__, write_length, buffer); /* Write next page */ - be_start_address = cpu_to_be16 (start_address); - status = TISendVendorRequestSync (serial->serial->dev, - UMPC_MEMORY_WRITE, // Request - (__u16)address_type, // wValue - (__force __u16)be_start_address, // wIndex - buffer, // TransferBuffer - write_length); // TransferBufferLength + be_start_address = cpu_to_be16(start_address); + status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, + (__u16)address_type, + (__force __u16)be_start_address, + buffer, write_length); if (status) { - dev_err (&serial->serial->dev->dev, "%s - ERROR %d\n", __func__, status); + dev_err(&serial->serial->dev->dev, "%s - ERROR %d\n", + __func__, status); return status; } - + length -= write_length; start_address += write_length; buffer += write_length; @@ -545,25 +513,25 @@ static int TIWriteDownloadI2C (struct edgeport_serial *serial, int start_address } /* Examine the UMP DMA registers and LSR - * + * * Check the MSBit of the X and Y DMA byte count registers. * A zero in this bit indicates that the TX DMA buffers are empty * then check the TX Empty bit in the UART. */ -static int TIIsTxActive (struct edgeport_port *port) +static int tx_active(struct edgeport_port *port) { int status; struct out_endpoint_desc_block *oedb; __u8 *lsr; int bytes_left = 0; - oedb = kmalloc (sizeof (* oedb), GFP_KERNEL); + oedb = kmalloc(sizeof(*oedb), GFP_KERNEL); if (!oedb) { - dev_err (&port->port->dev, "%s - out of memory\n", __func__); + dev_err(&port->port->dev, "%s - out of memory\n", __func__); return -ENOMEM; } - lsr = kmalloc (1, GFP_KERNEL); /* Sigh, that's right, just one byte, + lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte, as not all platforms can do DMA from stack */ if (!lsr) { @@ -571,43 +539,39 @@ static int TIIsTxActive (struct edgeport_port *port) return -ENOMEM; } /* Read the DMA Count Registers */ - status = TIReadRam (port->port->serial->dev, - port->dma_address, - sizeof( *oedb), - (void *)oedb); - + status = read_ram(port->port->serial->dev, port->dma_address, + sizeof(*oedb), (void *)oedb); if (status) goto exit_is_tx_active; - dbg ("%s - XByteCount 0x%X", __func__, oedb->XByteCount); + dbg("%s - XByteCount 0x%X", __func__, oedb->XByteCount); /* and the LSR */ - status = TIReadRam (port->port->serial->dev, - port->uart_base + UMPMEM_OFFS_UART_LSR, - 1, - lsr); + status = read_ram(port->port->serial->dev, + port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr); if (status) goto exit_is_tx_active; - dbg ("%s - LSR = 0x%X", __func__, *lsr); - + dbg("%s - LSR = 0x%X", __func__, *lsr); + /* If either buffer has data or we are transmitting then return TRUE */ - if ((oedb->XByteCount & 0x80 ) != 0 ) + if ((oedb->XByteCount & 0x80) != 0) bytes_left += 64; - if ((*lsr & UMP_UART_LSR_TX_MASK ) == 0 ) + if ((*lsr & UMP_UART_LSR_TX_MASK) == 0) bytes_left += 1; /* We return Not Active if we get any kind of error */ exit_is_tx_active: - dbg ("%s - return %d", __func__, bytes_left ); + dbg("%s - return %d", __func__, bytes_left); kfree(lsr); kfree(oedb); return bytes_left; } -static void TIChasePort(struct edgeport_port *port, unsigned long timeout, int flush) +static void chase_port(struct edgeport_port *port, unsigned long timeout, + int flush) { int baud_rate; struct tty_struct *tty = port->port->tty; @@ -615,7 +579,7 @@ static void TIChasePort(struct edgeport_port *port, unsigned long timeout, int f unsigned long flags; if (!timeout) - timeout = (HZ*EDGE_CLOSING_WAIT)/100; + timeout = (HZ * EDGE_CLOSING_WAIT)/100; /* wait for data to drain from the buffer */ spin_lock_irqsave(&port->ep_lock, flags); @@ -625,7 +589,8 @@ static void TIChasePort(struct edgeport_port *port, unsigned long timeout, int f set_current_state(TASK_INTERRUPTIBLE); if (edge_buf_data_avail(port->ep_out_buf) == 0 || timeout == 0 || signal_pending(current) - || !usb_get_intfdata(port->port->serial->interface)) /* disconnect */ + || !usb_get_intfdata(port->port->serial->interface)) + /* disconnect */ break; spin_unlock_irqrestore(&port->ep_lock, flags); timeout = schedule_timeout(timeout); @@ -640,8 +605,9 @@ static void TIChasePort(struct edgeport_port *port, unsigned long timeout, int f /* wait for data to drain from the device */ timeout += jiffies; while ((long)(jiffies - timeout) < 0 && !signal_pending(current) - && usb_get_intfdata(port->port->serial->interface)) { /* not disconnected */ - if (!TIIsTxActive(port)) + && usb_get_intfdata(port->port->serial->interface)) { + /* not disconnected */ + if (!tx_active(port)) break; msleep(10); } @@ -651,72 +617,72 @@ static void TIChasePort(struct edgeport_port *port, unsigned long timeout, int f return; /* wait one more character time, based on baud rate */ - /* (TIIsTxActive doesn't seem to wait for the last byte) */ - if ((baud_rate=port->baud_rate) == 0) + /* (tx_active doesn't seem to wait for the last byte) */ + baud_rate = port->baud_rate; + if (baud_rate == 0) baud_rate = 50; msleep(max(1, DIV_ROUND_UP(10000, baud_rate))); } -static int TIChooseConfiguration (struct usb_device *dev) +static int choose_config(struct usb_device *dev) { - // There may be multiple configurations on this device, in which case - // we would need to read and parse all of them to find out which one - // we want. However, we just support one config at this point, - // configuration # 1, which is Config Descriptor 0. + /* + * There may be multiple configurations on this device, in which case + * we would need to read and parse all of them to find out which one + * we want. However, we just support one config at this point, + * configuration # 1, which is Config Descriptor 0. + */ - dbg ("%s - Number of Interfaces = %d", __func__, dev->config->desc.bNumInterfaces); - dbg ("%s - MAX Power = %d", __func__, dev->config->desc.bMaxPower*2); + dbg("%s - Number of Interfaces = %d", + __func__, dev->config->desc.bNumInterfaces); + dbg("%s - MAX Power = %d", + __func__, dev->config->desc.bMaxPower * 2); if (dev->config->desc.bNumInterfaces != 1) { - dev_err (&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__); + dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", + __func__); return -ENODEV; } return 0; } -static int TIReadRom (struct edgeport_serial *serial, int start_address, int length, __u8 *buffer) +static int read_rom(struct edgeport_serial *serial, + int start_address, int length, __u8 *buffer) { int status; if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { - status = TIReadDownloadMemory (serial->serial->dev, + status = read_download_mem(serial->serial->dev, start_address, length, serial->TI_I2C_Type, buffer); } else { - status = TIReadBootMemory (serial, - start_address, - length, - buffer); + status = read_boot_mem(serial, start_address, length, + buffer); } - return status; } -static int TIWriteRom (struct edgeport_serial *serial, int start_address, int length, __u8 *buffer) +static int write_rom(struct edgeport_serial *serial, int start_address, + int length, __u8 *buffer) { if (serial->product_info.TiMode == TI_MODE_BOOT) - return TIWriteBootMemory (serial, - start_address, - length, - buffer); + return write_boot_mem(serial, start_address, length, + buffer); if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) - return TIWriteDownloadI2C (serial, - start_address, - length, - serial->TI_I2C_Type, - buffer); - + return write_i2c_mem(serial, start_address, length, + serial->TI_I2C_Type, buffer); return -EINVAL; } /* Read a descriptor header from I2C based on type */ -static int TIGetDescriptorAddress (struct edgeport_serial *serial, int desc_type, struct ti_i2c_desc *rom_desc) +static int get_descriptor_addr(struct edgeport_serial *serial, + int desc_type, struct ti_i2c_desc *rom_desc) { int start_address; int status; @@ -724,41 +690,42 @@ static int TIGetDescriptorAddress (struct edgeport_serial *serial, int desc_type /* Search for requested descriptor in I2C */ start_address = 2; do { - status = TIReadRom (serial, + status = read_rom(serial, start_address, sizeof(struct ti_i2c_desc), - (__u8 *)rom_desc ); + (__u8 *)rom_desc); if (status) return 0; if (rom_desc->Type == desc_type) return start_address; - start_address = start_address + sizeof(struct ti_i2c_desc) + rom_desc->Size; + start_address = start_address + sizeof(struct ti_i2c_desc) + + rom_desc->Size; } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); - + return 0; } /* Validate descriptor checksum */ -static int ValidChecksum(struct ti_i2c_desc *rom_desc, __u8 *buffer) +static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer) { __u16 i; __u8 cs = 0; - for (i=0; i < rom_desc->Size; i++) { + for (i = 0; i < rom_desc->Size; i++) cs = (__u8)(cs + buffer[i]); - } + if (cs != rom_desc->CheckSum) { - dbg ("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); + dbg("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); return -EINVAL; } return 0; } /* Make sure that the I2C image is good */ -static int TiValidateI2cImage (struct edgeport_serial *serial) +static int check_i2c_image(struct edgeport_serial *serial) { struct device *dev = &serial->serial->dev->dev; int status = 0; @@ -767,120 +734,124 @@ static int TiValidateI2cImage (struct edgeport_serial *serial) __u8 *buffer; __u16 ttype; - rom_desc = kmalloc (sizeof (*rom_desc), GFP_KERNEL); + rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); if (!rom_desc) { - dev_err (dev, "%s - out of memory\n", __func__); + dev_err(dev, "%s - out of memory\n", __func__); return -ENOMEM; } - buffer = kmalloc (TI_MAX_I2C_SIZE, GFP_KERNEL); + buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL); if (!buffer) { - dev_err (dev, "%s - out of memory when allocating buffer\n", __func__); - kfree (rom_desc); + dev_err(dev, "%s - out of memory when allocating buffer\n", + __func__); + kfree(rom_desc); return -ENOMEM; } - // Read the first byte (Signature0) must be 0x52 or 0x10 - status = TIReadRom (serial, 0, 1, buffer); + /* Read the first byte (Signature0) must be 0x52 or 0x10 */ + status = read_rom(serial, 0, 1, buffer); if (status) - goto ExitTiValidateI2cImage; + goto out; if (*buffer != UMP5152 && *buffer != UMP3410) { - dev_err (dev, "%s - invalid buffer signature\n", __func__); + dev_err(dev, "%s - invalid buffer signature\n", __func__); status = -ENODEV; - goto ExitTiValidateI2cImage; + goto out; } do { - // Validate the I2C - status = TIReadRom (serial, + /* Validate the I2C */ + status = read_rom(serial, start_address, sizeof(struct ti_i2c_desc), (__u8 *)rom_desc); if (status) break; - if ((start_address + sizeof(struct ti_i2c_desc) + rom_desc->Size) > TI_MAX_I2C_SIZE) { + if ((start_address + sizeof(struct ti_i2c_desc) + + rom_desc->Size) > TI_MAX_I2C_SIZE) { status = -ENODEV; - dbg ("%s - structure too big, erroring out.", __func__); + dbg("%s - structure too big, erroring out.", __func__); break; } - dbg ("%s Type = 0x%x", __func__, rom_desc->Type); + dbg("%s Type = 0x%x", __func__, rom_desc->Type); - // Skip type 2 record + /* Skip type 2 record */ ttype = rom_desc->Type & 0x0f; - if ( ttype != I2C_DESC_TYPE_FIRMWARE_BASIC - && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO ) { - // Read the descriptor data - status = TIReadRom(serial, - start_address+sizeof(struct ti_i2c_desc), - rom_desc->Size, - buffer); + if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC + && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) { + /* Read the descriptor data */ + status = read_rom(serial, start_address + + sizeof(struct ti_i2c_desc), + rom_desc->Size, buffer); if (status) break; - status = ValidChecksum(rom_desc, buffer); + status = valid_csum(rom_desc, buffer); if (status) break; } - start_address = start_address + sizeof(struct ti_i2c_desc) + rom_desc->Size; + start_address = start_address + sizeof(struct ti_i2c_desc) + + rom_desc->Size; - } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && (start_address < TI_MAX_I2C_SIZE)); + } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && + (start_address < TI_MAX_I2C_SIZE)); - if ((rom_desc->Type != I2C_DESC_TYPE_ION) || (start_address > TI_MAX_I2C_SIZE)) + if ((rom_desc->Type != I2C_DESC_TYPE_ION) || + (start_address > TI_MAX_I2C_SIZE)) status = -ENODEV; -ExitTiValidateI2cImage: - kfree (buffer); - kfree (rom_desc); +out: + kfree(buffer); + kfree(rom_desc); return status; } -static int TIReadManufDescriptor (struct edgeport_serial *serial, __u8 *buffer) +static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer) { int status; int start_address; struct ti_i2c_desc *rom_desc; struct edge_ti_manuf_descriptor *desc; - rom_desc = kmalloc (sizeof (*rom_desc), GFP_KERNEL); + rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); if (!rom_desc) { - dev_err (&serial->serial->dev->dev, "%s - out of memory\n", __func__); + dev_err(&serial->serial->dev->dev, "%s - out of memory\n", + __func__); return -ENOMEM; } - start_address = TIGetDescriptorAddress (serial, I2C_DESC_TYPE_ION, rom_desc); + start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION, + rom_desc); if (!start_address) { - dbg ("%s - Edge Descriptor not found in I2C", __func__); + dbg("%s - Edge Descriptor not found in I2C", __func__); status = -ENODEV; goto exit; } - // Read the descriptor data - status = TIReadRom (serial, - start_address+sizeof(struct ti_i2c_desc), - rom_desc->Size, - buffer); + /* Read the descriptor data */ + status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc), + rom_desc->Size, buffer); if (status) goto exit; - - status = ValidChecksum(rom_desc, buffer); - + + status = valid_csum(rom_desc, buffer); + desc = (struct edge_ti_manuf_descriptor *)buffer; - dbg ( "%s - IonConfig 0x%x", __func__, desc->IonConfig ); - dbg ( "%s - Version %d", __func__, desc->Version ); - dbg ( "%s - Cpu/Board 0x%x", __func__, desc->CpuRev_BoardRev ); - dbg ( "%s - NumPorts %d", __func__, desc->NumPorts ); - dbg ( "%s - NumVirtualPorts %d", __func__, desc->NumVirtualPorts ); - dbg ( "%s - TotalPorts %d", __func__, desc->TotalPorts ); + dbg("%s - IonConfig 0x%x", __func__, desc->IonConfig); + dbg("%s - Version %d", __func__, desc->Version); + dbg("%s - Cpu/Board 0x%x", __func__, desc->CpuRev_BoardRev); + dbg("%s - NumPorts %d", __func__, desc->NumPorts); + dbg("%s - NumVirtualPorts %d", __func__, desc->NumVirtualPorts); + dbg("%s - TotalPorts %d", __func__, desc->TotalPorts); exit: - kfree (rom_desc); + kfree(rom_desc); return status; } /* Build firmware header used for firmware update */ -static int BuildI2CFirmwareHeader (__u8 *header, struct device *dev) +static int build_i2c_fw_hdr(__u8 *header, struct device *dev) { __u8 *buffer; int buffer_size; @@ -890,155 +861,155 @@ static int BuildI2CFirmwareHeader (__u8 *header, struct device *dev) struct ti_i2c_image_header *img_header; struct ti_i2c_firmware_rec *firmware_rec; - // In order to update the I2C firmware we must change the type 2 record to type 0xF2. - // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver - // will download the latest firmware (padded to 15.5k) into the UMP ram. - // And finally when the device comes back up in download mode the driver will cause - // the new firmware to be copied from the UMP Ram to I2C and the firmware will update - // the record type from 0xf2 to 0x02. - - // Allocate a 15.5k buffer + 2 bytes for version number (Firmware Record) - buffer_size = (((1024 * 16) - 512 )+ sizeof(struct ti_i2c_firmware_rec)); - - buffer = kmalloc (buffer_size, GFP_KERNEL); + /* + * In order to update the I2C firmware we must change the type 2 + * record to type 0xF2. This will force the UMP to come up in Boot + * Mode. Then while in boot mode, the driver will download the latest + * firmware (padded to 15.5k) into the UMP ram. Finally when the device + * comes back up in download mode the driver will cause the new + * firmware to be copied from the UMP Ram to I2C and the firmware + * will update the record type from 0xf2 to 0x02. + */ + + /* Allocate a 15.5k buffer + 2 bytes for version number + (Firmware Record) */ + buffer_size = (((1024 * 16) - 512) + + sizeof(struct ti_i2c_firmware_rec)); + + buffer = kmalloc(buffer_size, GFP_KERNEL); if (!buffer) { - dev_err (dev, "%s - out of memory\n", __func__); + dev_err(dev, "%s - out of memory\n", __func__); return -ENOMEM; } - - // Set entire image of 0xffs - memset (buffer, 0xff, buffer_size); - // Copy version number into firmware record + /* Set entire image of 0xffs */ + memset(buffer, 0xff, buffer_size); + + /* Copy version number into firmware record */ firmware_rec = (struct ti_i2c_firmware_rec *)buffer; - firmware_rec->Ver_Major = OperationalCodeImageVersion.MajorVersion; - firmware_rec->Ver_Minor = OperationalCodeImageVersion.MinorVersion; + firmware_rec->Ver_Major = op_fw_version.MajorVersion; + firmware_rec->Ver_Minor = op_fw_version.MinorVersion; - // Pointer to fw_down memory image - img_header = (struct ti_i2c_image_header *)&PagableOperationalCodeImage[0]; + /* Pointer to fw_down memory image */ + img_header = (struct ti_i2c_image_header *)&fw_image[0]; - memcpy (buffer + sizeof(struct ti_i2c_firmware_rec), - &PagableOperationalCodeImage[sizeof(struct ti_i2c_image_header)], + memcpy(buffer + sizeof(struct ti_i2c_firmware_rec), + &fw_image[sizeof(struct ti_i2c_image_header)], le16_to_cpu(img_header->Length)); - for (i=0; i < buffer_size; i++) { + for (i = 0; i < buffer_size; i++) cs = (__u8)(cs + buffer[i]); - } - - kfree (buffer); + kfree(buffer); - // Build new header + /* Build new header */ i2c_header = (struct ti_i2c_desc *)header; - firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; - + firmware_rec = (struct ti_i2c_firmware_rec *)i2c_header->Data; + i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; i2c_header->Size = (__u16)buffer_size; i2c_header->CheckSum = cs; - firmware_rec->Ver_Major = OperationalCodeImageVersion.MajorVersion; - firmware_rec->Ver_Minor = OperationalCodeImageVersion.MinorVersion; + firmware_rec->Ver_Major = op_fw_version.MajorVersion; + firmware_rec->Ver_Minor = op_fw_version.MinorVersion; return 0; } /* Try to figure out what type of I2c we have */ -static int TIGetI2cTypeInBootMode (struct edgeport_serial *serial) +static int i2c_type_bootmode(struct edgeport_serial *serial) { int status; __u8 data; - - // Try to read type 2 - status = TIReadVendorRequestSync (serial->serial->dev, - UMPC_MEMORY_READ, // Request - DTK_ADDR_SPACE_I2C_TYPE_II, // wValue (Address type) - 0, // wIndex - &data, // TransferBuffer - 0x01); // TransferBufferLength + + /* Try to read type 2 */ + status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, + DTK_ADDR_SPACE_I2C_TYPE_II, 0, &data, 0x01); if (status) - dbg ("%s - read 2 status error = %d", __func__, status); + dbg("%s - read 2 status error = %d", __func__, status); else - dbg ("%s - read 2 data = 0x%x", __func__, data); + dbg("%s - read 2 data = 0x%x", __func__, data); if ((!status) && (data == UMP5152 || data == UMP3410)) { - dbg ("%s - ROM_TYPE_II", __func__); + dbg("%s - ROM_TYPE_II", __func__); serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; return 0; } - // Try to read type 3 - status = TIReadVendorRequestSync (serial->serial->dev, - UMPC_MEMORY_READ, // Request - DTK_ADDR_SPACE_I2C_TYPE_III, // wValue (Address type) - 0, // wIndex - &data, // TransferBuffer - 0x01); // TransferBufferLength + /* Try to read type 3 */ + status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, + DTK_ADDR_SPACE_I2C_TYPE_III, 0, &data, 0x01); if (status) - dbg ("%s - read 3 status error = %d", __func__, status); + dbg("%s - read 3 status error = %d", __func__, status); else - dbg ("%s - read 2 data = 0x%x", __func__, data); + dbg("%s - read 2 data = 0x%x", __func__, data); if ((!status) && (data == UMP5152 || data == UMP3410)) { - dbg ("%s - ROM_TYPE_III", __func__); + dbg("%s - ROM_TYPE_III", __func__); serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; return 0; } - dbg ("%s - Unknown", __func__); + dbg("%s - Unknown", __func__); serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; return -ENODEV; } -static int TISendBulkTransferSync (struct usb_serial *serial, void *buffer, int length, int *num_sent) +static int bulk_xfer(struct usb_serial *serial, void *buffer, + int length, int *num_sent) { int status; - status = usb_bulk_msg (serial->dev, - usb_sndbulkpipe(serial->dev, - serial->port[0]->bulk_out_endpointAddress), - buffer, - length, - num_sent, - 1000); + status = usb_bulk_msg(serial->dev, + usb_sndbulkpipe(serial->dev, + serial->port[0]->bulk_out_endpointAddress), + buffer, length, num_sent, 1000); return status; } /* Download given firmware image to the device (IN BOOT MODE) */ -static int TIDownloadCodeImage (struct edgeport_serial *serial, __u8 *image, int image_length) +static int download_code(struct edgeport_serial *serial, __u8 *image, + int image_length) { int status = 0; int pos; int transfer; int done; - // Transfer firmware image + /* Transfer firmware image */ for (pos = 0; pos < image_length; ) { - // Read the next buffer from file + /* Read the next buffer from file */ transfer = image_length - pos; if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; - // Transfer data - status = TISendBulkTransferSync (serial->serial, &image[pos], transfer, &done); + /* Transfer data */ + status = bulk_xfer(serial->serial, &image[pos], + transfer, &done); if (status) break; - // Advance buffer pointer + /* Advance buffer pointer */ pos += done; } return status; } -// FIXME!!! -static int TIConfigureBootDevice (struct usb_device *dev) +/* FIXME!!! */ +static int config_boot_dev(struct usb_device *dev) { return 0; } +static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc) +{ + return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev); +} + /** * DownloadTIFirmware - Download run-time operating firmware to the TI5052 - * + * * This routine downloads the main operating code into the TI5052, using the * boot code already burned into E2PROM or ROM. */ -static int TIDownloadFirmware (struct edgeport_serial *serial) +static int download_fw(struct edgeport_serial *serial) { struct device *dev = &serial->serial->dev->dev; int status = 0; @@ -1057,28 +1028,31 @@ static int TIDownloadFirmware (struct edgeport_serial *serial) /* Default to type 2 i2c */ serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; - status = TIChooseConfiguration (serial->serial->dev); + status = choose_config(serial->serial->dev); if (status) return status; interface = &serial->serial->interface->cur_altsetting->desc; if (!interface) { - dev_err (dev, "%s - no interface set, error!\n", __func__); + dev_err(dev, "%s - no interface set, error!\n", __func__); return -ENODEV; } - // Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING - // if we have more than one endpoint we are definitely in download mode + /* + * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING + * if we have more than one endpoint we are definitely in download + * mode + */ if (interface->bNumEndpoints > 1) serial->product_info.TiMode = TI_MODE_DOWNLOAD; else - // Otherwise we will remain in configuring mode + /* Otherwise we will remain in configuring mode */ serial->product_info.TiMode = TI_MODE_CONFIGURING; - // Save Download Version Number - OperationalCodeImageVersion.MajorVersion = PagableOperationalCodeImageVersion.MajorVersion; - OperationalCodeImageVersion.MinorVersion = PagableOperationalCodeImageVersion.MinorVersion; - OperationalCodeImageVersion.BuildNumber = PagableOperationalCodeImageVersion.BuildNumber; + /* Save Download Version Number */ + op_fw_version.MajorVersion = fw_version.MajorVersion; + op_fw_version.MinorVersion = fw_version.MinorVersion; + op_fw_version.BuildNumber = fw_version.BuildNumber; /********************************************************************/ /* Download Mode */ @@ -1088,256 +1062,276 @@ static int TIDownloadFirmware (struct edgeport_serial *serial) dbg("%s - RUNNING IN DOWNLOAD MODE", __func__); - status = TiValidateI2cImage (serial); + status = check_i2c_image(serial); if (status) { dbg("%s - DOWNLOAD MODE -- BAD I2C", __func__); return status; } - + /* Validate Hardware version number * Read Manufacturing Descriptor from TI Based Edgeport */ - ti_manuf_desc = kmalloc (sizeof (*ti_manuf_desc), GFP_KERNEL); + ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); if (!ti_manuf_desc) { - dev_err (dev, "%s - out of memory.\n", __func__); + dev_err(dev, "%s - out of memory.\n", __func__); return -ENOMEM; } - status = TIReadManufDescriptor (serial, (__u8 *)ti_manuf_desc); + status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); if (status) { - kfree (ti_manuf_desc); + kfree(ti_manuf_desc); return status; } - // Check version number of ION descriptor - if (!ignore_cpu_rev && TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev) < 2) { - dbg ( "%s - Wrong CPU Rev %d (Must be 2)", __func__, - TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev)); - kfree (ti_manuf_desc); - return -EINVAL; + /* Check version number of ION descriptor */ + if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { + dbg("%s - Wrong CPU Rev %d (Must be 2)", + __func__, ti_cpu_rev(ti_manuf_desc)); + kfree(ti_manuf_desc); + return -EINVAL; } - rom_desc = kmalloc (sizeof (*rom_desc), GFP_KERNEL); + rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); if (!rom_desc) { - dev_err (dev, "%s - out of memory.\n", __func__); - kfree (ti_manuf_desc); + dev_err(dev, "%s - out of memory.\n", __func__); + kfree(ti_manuf_desc); return -ENOMEM; } - // Search for type 2 record (firmware record) - if ((start_address = TIGetDescriptorAddress (serial, I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc)) != 0) { + /* Search for type 2 record (firmware record) */ + start_address = get_descriptor_addr(serial, + I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc); + if (start_address != 0) { struct ti_i2c_firmware_rec *firmware_version; __u8 record; - dbg ("%s - Found Type FIRMWARE (Type 2) record", __func__); + dbg("%s - Found Type FIRMWARE (Type 2) record", + __func__); - firmware_version = kmalloc (sizeof (*firmware_version), GFP_KERNEL); + firmware_version = kmalloc(sizeof(*firmware_version), + GFP_KERNEL); if (!firmware_version) { - dev_err (dev, "%s - out of memory.\n", __func__); - kfree (rom_desc); - kfree (ti_manuf_desc); + dev_err(dev, "%s - out of memory.\n", + __func__); + kfree(rom_desc); + kfree(ti_manuf_desc); return -ENOMEM; } - // Validate version number - // Read the descriptor data - status = TIReadRom (serial, - start_address+sizeof(struct ti_i2c_desc), + /* Validate version number + * Read the descriptor data + */ + status = read_rom(serial, start_address + + sizeof(struct ti_i2c_desc), sizeof(struct ti_i2c_firmware_rec), (__u8 *)firmware_version); if (status) { - kfree (firmware_version); - kfree (rom_desc); - kfree (ti_manuf_desc); + kfree(firmware_version); + kfree(rom_desc); + kfree(ti_manuf_desc); return status; } - // Check version number of download with current version in I2c - download_cur_ver = (firmware_version->Ver_Major << 8) + + /* Check version number of download with current + version in I2c */ + download_cur_ver = (firmware_version->Ver_Major << 8) + (firmware_version->Ver_Minor); - download_new_ver = (OperationalCodeImageVersion.MajorVersion << 8) + - (OperationalCodeImageVersion.MinorVersion); + download_new_ver = (op_fw_version.MajorVersion << 8) + + (op_fw_version.MinorVersion); - dbg ("%s - >>>Firmware Versions Device %d.%d Driver %d.%d", + dbg("%s - >>>FW Versions Device %d.%d Driver %d.%d", __func__, firmware_version->Ver_Major, firmware_version->Ver_Minor, - OperationalCodeImageVersion.MajorVersion, - OperationalCodeImageVersion.MinorVersion); + op_fw_version.MajorVersion, + op_fw_version.MinorVersion); - // Check if we have an old version in the I2C and update if necessary + /* Check if we have an old version in the I2C and + update if necessary */ if (download_cur_ver != download_new_ver) { - dbg ("%s - Update I2C Download from %d.%d to %d.%d", + dbg("%s - Update I2C dld from %d.%d to %d.%d", __func__, firmware_version->Ver_Major, firmware_version->Ver_Minor, - OperationalCodeImageVersion.MajorVersion, - OperationalCodeImageVersion.MinorVersion); - - // In order to update the I2C firmware we must change the type 2 record to type 0xF2. - // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver - // will download the latest firmware (padded to 15.5k) into the UMP ram. - // And finally when the device comes back up in download mode the driver will cause - // the new firmware to be copied from the UMP Ram to I2C and the firmware will update - // the record type from 0xf2 to 0x02. + op_fw_version.MajorVersion, + op_fw_version.MinorVersion); + + /* In order to update the I2C firmware we must + * change the type 2 record to type 0xF2. This + * will force the UMP to come up in Boot Mode. + * Then while in boot mode, the driver will + * download the latest firmware (padded to + * 15.5k) into the UMP ram. Finally when the + * device comes back up in download mode the + * driver will cause the new firmware to be + * copied from the UMP Ram to I2C and the + * firmware will update the record type from + * 0xf2 to 0x02. + */ record = I2C_DESC_TYPE_FIRMWARE_BLANK; - // Change the I2C Firmware record type to 0xf2 to trigger an update - status = TIWriteRom (serial, - start_address, - sizeof(record), - &record); + /* Change the I2C Firmware record type to + 0xf2 to trigger an update */ + status = write_rom(serial, start_address, + sizeof(record), &record); if (status) { - kfree (firmware_version); - kfree (rom_desc); - kfree (ti_manuf_desc); + kfree(firmware_version); + kfree(rom_desc); + kfree(ti_manuf_desc); return status; } - // verify the write -- must do this in order for write to - // complete before we do the hardware reset - status = TIReadRom (serial, + /* verify the write -- must do this in order + * for write to complete before we do the + * hardware reset + */ + status = read_rom(serial, start_address, sizeof(record), &record); if (status) { - kfree (firmware_version); - kfree (rom_desc); - kfree (ti_manuf_desc); + kfree(firmware_version); + kfree(rom_desc); + kfree(ti_manuf_desc); return status; } if (record != I2C_DESC_TYPE_FIRMWARE_BLANK) { - dev_err (dev, "%s - error resetting device\n", __func__); - kfree (firmware_version); - kfree (rom_desc); - kfree (ti_manuf_desc); + dev_err(dev, + "%s - error resetting device\n", + __func__); + kfree(firmware_version); + kfree(rom_desc); + kfree(ti_manuf_desc); return -ENODEV; } - dbg ("%s - HARDWARE RESET", __func__); + dbg("%s - HARDWARE RESET", __func__); - // Reset UMP -- Back to BOOT MODE - status = TISendVendorRequestSync (serial->serial->dev, - UMPC_HARDWARE_RESET, // Request - 0, // wValue - 0, // wIndex - NULL, // TransferBuffer - 0); // TransferBufferLength + /* Reset UMP -- Back to BOOT MODE */ + status = ti_vsend_sync(serial->serial->dev, + UMPC_HARDWARE_RESET, + 0, 0, NULL, 0); - dbg ( "%s - HARDWARE RESET return %d", __func__, status); + dbg("%s - HARDWARE RESET return %d", + __func__, status); /* return an error on purpose. */ - kfree (firmware_version); - kfree (rom_desc); - kfree (ti_manuf_desc); + kfree(firmware_version); + kfree(rom_desc); + kfree(ti_manuf_desc); return -ENODEV; } - kfree (firmware_version); + kfree(firmware_version); } - // Search for type 0xF2 record (firmware blank record) - else if ((start_address = TIGetDescriptorAddress (serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) { - #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + sizeof(struct ti_i2c_firmware_rec)) + /* Search for type 0xF2 record (firmware blank record) */ + else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) { +#define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \ + sizeof(struct ti_i2c_firmware_rec)) __u8 *header; __u8 *vheader; - header = kmalloc (HEADER_SIZE, GFP_KERNEL); + header = kmalloc(HEADER_SIZE, GFP_KERNEL); if (!header) { - dev_err (dev, "%s - out of memory.\n", __func__); - kfree (rom_desc); - kfree (ti_manuf_desc); + dev_err(dev, "%s - out of memory.\n", __func__); + kfree(rom_desc); + kfree(ti_manuf_desc); return -ENOMEM; } - - vheader = kmalloc (HEADER_SIZE, GFP_KERNEL); + + vheader = kmalloc(HEADER_SIZE, GFP_KERNEL); if (!vheader) { - dev_err (dev, "%s - out of memory.\n", __func__); - kfree (header); - kfree (rom_desc); - kfree (ti_manuf_desc); + dev_err(dev, "%s - out of memory.\n", __func__); + kfree(header); + kfree(rom_desc); + kfree(ti_manuf_desc); return -ENOMEM; } - - dbg ("%s - Found Type BLANK FIRMWARE (Type F2) record", __func__); - - // In order to update the I2C firmware we must change the type 2 record to type 0xF2. - // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver - // will download the latest firmware (padded to 15.5k) into the UMP ram. - // And finally when the device comes back up in download mode the driver will cause - // the new firmware to be copied from the UMP Ram to I2C and the firmware will update - // the record type from 0xf2 to 0x02. - status = BuildI2CFirmwareHeader(header, dev); + + dbg("%s - Found Type BLANK FIRMWARE (Type F2) record", + __func__); + + /* + * In order to update the I2C firmware we must change + * the type 2 record to type 0xF2. This will force the + * UMP to come up in Boot Mode. Then while in boot + * mode, the driver will download the latest firmware + * (padded to 15.5k) into the UMP ram. Finally when the + * device comes back up in download mode the driver + * will cause the new firmware to be copied from the + * UMP Ram to I2C and the firmware will update the + * record type from 0xf2 to 0x02. + */ + status = build_i2c_fw_hdr(header, dev); if (status) { - kfree (vheader); - kfree (header); - kfree (rom_desc); - kfree (ti_manuf_desc); + kfree(vheader); + kfree(header); + kfree(rom_desc); + kfree(ti_manuf_desc); return status; } - // Update I2C with type 0xf2 record with correct size and checksum - status = TIWriteRom (serial, + /* Update I2C with type 0xf2 record with correct + size and checksum */ + status = write_rom(serial, start_address, HEADER_SIZE, header); if (status) { - kfree (vheader); - kfree (header); - kfree (rom_desc); - kfree (ti_manuf_desc); + kfree(vheader); + kfree(header); + kfree(rom_desc); + kfree(ti_manuf_desc); return status; } - // verify the write -- must do this in order for write to - // complete before we do the hardware reset - status = TIReadRom (serial, - start_address, - HEADER_SIZE, - vheader); + /* verify the write -- must do this in order for + write to complete before we do the hardware reset */ + status = read_rom(serial, start_address, + HEADER_SIZE, vheader); if (status) { - dbg ("%s - can't read header back", __func__); - kfree (vheader); - kfree (header); - kfree (rom_desc); - kfree (ti_manuf_desc); + dbg("%s - can't read header back", __func__); + kfree(vheader); + kfree(header); + kfree(rom_desc); + kfree(ti_manuf_desc); return status; } if (memcmp(vheader, header, HEADER_SIZE)) { - dbg ("%s - write download record failed", __func__); - kfree (vheader); - kfree (header); - kfree (rom_desc); - kfree (ti_manuf_desc); + dbg("%s - write download record failed", + __func__); + kfree(vheader); + kfree(header); + kfree(rom_desc); + kfree(ti_manuf_desc); return status; } - kfree (vheader); - kfree (header); + kfree(vheader); + kfree(header); - dbg ("%s - Start firmware update", __func__); + dbg("%s - Start firmware update", __func__); - // Tell firmware to copy download image into I2C - status = TISendVendorRequestSync (serial->serial->dev, - UMPC_COPY_DNLD_TO_I2C, // Request - 0, // wValue - 0, // wIndex - NULL, // TransferBuffer - 0); // TransferBufferLength + /* Tell firmware to copy download image into I2C */ + status = ti_vsend_sync(serial->serial->dev, + UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0); - dbg ("%s - Update complete 0x%x", __func__, status); + dbg("%s - Update complete 0x%x", __func__, status); if (status) { - dev_err (dev, "%s - UMPC_COPY_DNLD_TO_I2C failed\n", __func__); - kfree (rom_desc); - kfree (ti_manuf_desc); + dev_err(dev, + "%s - UMPC_COPY_DNLD_TO_I2C failed\n", + __func__); + kfree(rom_desc); + kfree(ti_manuf_desc); return status; } } - // The device is running the download code - kfree (rom_desc); - kfree (ti_manuf_desc); + /* The device is running the download code */ + kfree(rom_desc); + kfree(ti_manuf_desc); return 0; } @@ -1346,32 +1340,26 @@ static int TIDownloadFirmware (struct edgeport_serial *serial) /********************************************************************/ dbg("%s - RUNNING IN BOOT MODE", __func__); - // Configure the TI device so we can use the BULK pipes for download - status = TIConfigureBootDevice (serial->serial->dev); + /* Configure the TI device so we can use the BULK pipes for download */ + status = config_boot_dev(serial->serial->dev); if (status) return status; - if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) != USB_VENDOR_ID_ION) { - dbg ("%s - VID = 0x%x", __func__, + if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) + != USB_VENDOR_ID_ION) { + dbg("%s - VID = 0x%x", __func__, le16_to_cpu(serial->serial->dev->descriptor.idVendor)); serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; - goto StayInBootMode; + goto stayinbootmode; } - // We have an ION device (I2c Must be programmed) - // Determine I2C image type - if (TIGetI2cTypeInBootMode(serial)) { - goto StayInBootMode; - } + /* We have an ION device (I2c Must be programmed) + Determine I2C image type */ + if (i2c_type_bootmode(serial)) + goto stayinbootmode; - // Registry variable set? - if (TIStayInBootMode) { - dbg ("%s - TIStayInBootMode", __func__); - goto StayInBootMode; - } - - // Check for ION Vendor ID and that the I2C is valid - if (!TiValidateI2cImage(serial)) { + /* Check for ION Vendor ID and that the I2C is valid */ + if (!check_i2c_image(serial)) { struct ti_i2c_image_header *header; int i; __u8 cs = 0; @@ -1381,241 +1369,124 @@ static int TIDownloadFirmware (struct edgeport_serial *serial) /* Validate Hardware version number * Read Manufacturing Descriptor from TI Based Edgeport */ - ti_manuf_desc = kmalloc (sizeof (*ti_manuf_desc), GFP_KERNEL); + ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); if (!ti_manuf_desc) { - dev_err (dev, "%s - out of memory.\n", __func__); + dev_err(dev, "%s - out of memory.\n", __func__); return -ENOMEM; } - status = TIReadManufDescriptor (serial, (__u8 *)ti_manuf_desc); + status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); if (status) { - kfree (ti_manuf_desc); - goto StayInBootMode; + kfree(ti_manuf_desc); + goto stayinbootmode; } - // Check for version 2 - if (!ignore_cpu_rev && TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev) < 2) { - dbg ("%s - Wrong CPU Rev %d (Must be 2)", __func__, - TI_GET_CPU_REVISION(ti_manuf_desc->CpuRev_BoardRev)); - kfree (ti_manuf_desc); - goto StayInBootMode; + /* Check for version 2 */ + if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { + dbg("%s - Wrong CPU Rev %d (Must be 2)", + __func__, ti_cpu_rev(ti_manuf_desc)); + kfree(ti_manuf_desc); + goto stayinbootmode; } - kfree (ti_manuf_desc); + kfree(ti_manuf_desc); - // In order to update the I2C firmware we must change the type 2 record to type 0xF2. - // This will force the UMP to come up in Boot Mode. Then while in boot mode, the driver - // will download the latest firmware (padded to 15.5k) into the UMP ram. - // And finally when the device comes back up in download mode the driver will cause - // the new firmware to be copied from the UMP Ram to I2C and the firmware will update - // the record type from 0xf2 to 0x02. - /* + * In order to update the I2C firmware we must change the type + * 2 record to type 0xF2. This will force the UMP to come up + * in Boot Mode. Then while in boot mode, the driver will + * download the latest firmware (padded to 15.5k) into the + * UMP ram. Finally when the device comes back up in download + * mode the driver will cause the new firmware to be copied + * from the UMP Ram to I2C and the firmware will update the + * record type from 0xf2 to 0x02. + * * Do we really have to copy the whole firmware image, * or could we do this in place! */ - // Allocate a 15.5k buffer + 3 byte header - buffer_size = (((1024 * 16) - 512) + sizeof(struct ti_i2c_image_header)); - buffer = kmalloc (buffer_size, GFP_KERNEL); + /* Allocate a 15.5k buffer + 3 byte header */ + buffer_size = (((1024 * 16) - 512) + + sizeof(struct ti_i2c_image_header)); + buffer = kmalloc(buffer_size, GFP_KERNEL); if (!buffer) { - dev_err (dev, "%s - out of memory\n", __func__); + dev_err(dev, "%s - out of memory\n", __func__); return -ENOMEM; } - - // Initialize the buffer to 0xff (pad the buffer) - memset (buffer, 0xff, buffer_size); - memcpy (buffer, &PagableOperationalCodeImage[0], PagableOperationalCodeSize); + /* Initialize the buffer to 0xff (pad the buffer) */ + memset(buffer, 0xff, buffer_size); + memcpy(buffer, &fw_image[0], fw_size); - for(i = sizeof(struct ti_i2c_image_header); i < buffer_size; i++) { + for (i = sizeof(struct ti_i2c_image_header); + i < buffer_size; i++) cs = (__u8)(cs + buffer[i]); - } - + header = (struct ti_i2c_image_header *)buffer; - - // update length and checksum after padding - header->Length = cpu_to_le16((__u16)(buffer_size - sizeof(struct ti_i2c_image_header))); + + /* update length and checksum after padding */ + header->Length = cpu_to_le16((__u16)(buffer_size - + sizeof(struct ti_i2c_image_header))); header->CheckSum = cs; - // Download the operational code - dbg ("%s - Downloading operational code image (TI UMP)", __func__); - status = TIDownloadCodeImage (serial, buffer, buffer_size); + /* Download the operational code */ + dbg("%s - Downloading operational code image (TI UMP)", + __func__); + status = download_code(serial, buffer, buffer_size); - kfree (buffer); + kfree(buffer); if (status) { - dbg ("%s - Error downloading operational code image", __func__); + dbg("%s - Error downloading operational code image", + __func__); return status; } - // Device will reboot + /* Device will reboot */ serial->product_info.TiMode = TI_MODE_TRANSITIONING; - dbg ("%s - Download successful -- Device rebooting...", __func__); + dbg("%s - Download successful -- Device rebooting...", + __func__); /* return an error on purpose */ return -ENODEV; } -StayInBootMode: - // Eprom is invalid or blank stay in boot mode +stayinbootmode: + /* Eprom is invalid or blank stay in boot mode */ dbg("%s - STAYING IN BOOT MODE", __func__); serial->product_info.TiMode = TI_MODE_BOOT; return 0; } - -static int TISetDtr (struct edgeport_port *port) -{ - int port_number = port->port->number - port->port->serial->minor; - - dbg ("%s", __func__); - port->shadow_mcr |= MCR_DTR; - - return TIWriteCommandSync (port->port->serial->dev, - UMPC_SET_CLR_DTR, - (__u8)(UMPM_UART1_PORT + port_number), - 1, /* set */ - NULL, - 0); -} - -static int TIClearDtr (struct edgeport_port *port) +static int ti_do_config(struct edgeport_port *port, int feature, int on) { int port_number = port->port->number - port->port->serial->minor; - - dbg ("%s", __func__); - port->shadow_mcr &= ~MCR_DTR; - - return TIWriteCommandSync (port->port->serial->dev, - UMPC_SET_CLR_DTR, - (__u8)(UMPM_UART1_PORT + port_number), - 0, /* clear */ - NULL, - 0); + on = !!on; /* 1 or 0 not bitmask */ + return send_cmd(port->port->serial->dev, + feature, (__u8)(UMPM_UART1_PORT + port_number), + on, NULL, 0); } -static int TISetRts (struct edgeport_port *port) -{ - int port_number = port->port->number - port->port->serial->minor; - - dbg ("%s", __func__); - port->shadow_mcr |= MCR_RTS; - - return TIWriteCommandSync (port->port->serial->dev, - UMPC_SET_CLR_RTS, - (__u8)(UMPM_UART1_PORT + port_number), - 1, /* set */ - NULL, - 0); -} - -static int TIClearRts (struct edgeport_port *port) -{ - int port_number = port->port->number - port->port->serial->minor; - - dbg ("%s", __func__); - port->shadow_mcr &= ~MCR_RTS; - - return TIWriteCommandSync (port->port->serial->dev, - UMPC_SET_CLR_RTS, - (__u8)(UMPM_UART1_PORT + port_number), - 0, /* clear */ - NULL, - 0); -} - -static int TISetLoopBack (struct edgeport_port *port) -{ - int port_number = port->port->number - port->port->serial->minor; - - dbg ("%s", __func__); - - return TIWriteCommandSync (port->port->serial->dev, - UMPC_SET_CLR_LOOPBACK, - (__u8)(UMPM_UART1_PORT + port_number), - 1, /* set */ - NULL, - 0); -} - -static int TIClearLoopBack (struct edgeport_port *port) -{ - int port_number = port->port->number - port->port->serial->minor; - - dbg ("%s", __func__); - - return TIWriteCommandSync (port->port->serial->dev, - UMPC_SET_CLR_LOOPBACK, - (__u8)(UMPM_UART1_PORT + port_number), - 0, /* clear */ - NULL, - 0); -} - -static int TISetBreak (struct edgeport_port *port) -{ - int port_number = port->port->number - port->port->serial->minor; - - dbg ("%s", __func__); - - return TIWriteCommandSync (port->port->serial->dev, - UMPC_SET_CLR_BREAK, - (__u8)(UMPM_UART1_PORT + port_number), - 1, /* set */ - NULL, - 0); -} - -static int TIClearBreak (struct edgeport_port *port) -{ - int port_number = port->port->number - port->port->serial->minor; - - dbg ("%s", __func__); - - return TIWriteCommandSync (port->port->serial->dev, - UMPC_SET_CLR_BREAK, - (__u8)(UMPM_UART1_PORT + port_number), - 0, /* clear */ - NULL, - 0); -} - -static int TIRestoreMCR (struct edgeport_port *port, __u8 mcr) +static int restore_mcr(struct edgeport_port *port, __u8 mcr) { int status = 0; - dbg ("%s - %x", __func__, mcr); - - if (mcr & MCR_DTR) - status = TISetDtr (port); - else - status = TIClearDtr (port); + dbg("%s - %x", __func__, mcr); + status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR); if (status) return status; - - if (mcr & MCR_RTS) - status = TISetRts (port); - else - status = TIClearRts (port); - + status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS); if (status) return status; - - if (mcr & MCR_LOOPBACK) - status = TISetLoopBack (port); - else - status = TIClearLoopBack (port); - - return status; + return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK); } /* Convert TI LSR to standard UART flags */ -static __u8 MapLineStatus (__u8 ti_lsr) +static __u8 map_line_status(__u8 ti_lsr) { __u8 lsr = 0; @@ -1627,22 +1498,23 @@ static __u8 MapLineStatus (__u8 ti_lsr) MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ - MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* receive data available */ - MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* transmit holding register empty */ + MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */ + MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* tx hold reg empty */ #undef MAP_FLAG return lsr; } -static void handle_new_msr (struct edgeport_port *edge_port, __u8 msr) +static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) { struct async_icount *icount; struct tty_struct *tty; - dbg ("%s - %02x", __func__, msr); + dbg("%s - %02x", __func__, msr); - if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { + if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | + EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { icount = &edge_port->icount; /* update input line counters */ @@ -1654,7 +1526,7 @@ static void handle_new_msr (struct edgeport_port *edge_port, __u8 msr) icount->dcd++; if (msr & EDGEPORT_MSR_DELTA_RI) icount->rng++; - wake_up_interruptible (&edge_port->delta_msr_wait); + wake_up_interruptible(&edge_port->delta_msr_wait); } /* Save the new modem status */ @@ -1674,26 +1546,28 @@ static void handle_new_msr (struct edgeport_port *edge_port, __u8 msr) return; } -static void handle_new_lsr (struct edgeport_port *edge_port, int lsr_data, __u8 lsr, __u8 data) +static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, + __u8 lsr, __u8 data) { struct async_icount *icount; - __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK)); + __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | + LSR_FRM_ERR | LSR_BREAK)); - dbg ("%s - %02x", __func__, new_lsr); + dbg("%s - %02x", __func__, new_lsr); edge_port->shadow_lsr = lsr; - if (new_lsr & LSR_BREAK) { + if (new_lsr & LSR_BREAK) /* * Parity and Framing errors only count if they * occur exclusive of a break being received. */ new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); - } /* Place LSR data byte into Rx buffer */ if (lsr_data && edge_port->port->tty) - edge_tty_recv(&edge_port->port->dev, edge_port->port->tty, &data, 1); + edge_tty_recv(&edge_port->port->dev, edge_port->port->tty, + &data, 1); /* update input line counters */ icount = &edge_port->icount; @@ -1708,7 +1582,7 @@ static void handle_new_lsr (struct edgeport_port *edge_port, int lsr_data, __u8 } -static void edge_interrupt_callback (struct urb *urb) +static void edge_interrupt_callback(struct urb *urb) { struct edgeport_serial *edge_serial = urb->context; struct usb_serial_port *port; @@ -1742,66 +1616,71 @@ static void edge_interrupt_callback (struct urb *urb) } if (!length) { - dbg ("%s - no data in urb", __func__); + dbg("%s - no data in urb", __func__); goto exit; } - - usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, __func__, length, data); - + + usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, + __func__, length, data); + if (length != 2) { - dbg ("%s - expecting packet of size 2, got %d", __func__, length); + dbg("%s - expecting packet of size 2, got %d", + __func__, length); goto exit; } - port_number = TIUMP_GET_PORT_FROM_CODE (data[0]); - function = TIUMP_GET_FUNC_FROM_CODE (data[0]); - dbg ("%s - port_number %d, function %d, info 0x%x", + port_number = TIUMP_GET_PORT_FROM_CODE(data[0]); + function = TIUMP_GET_FUNC_FROM_CODE(data[0]); + dbg("%s - port_number %d, function %d, info 0x%x", __func__, port_number, function, data[1]); port = edge_serial->serial->port[port_number]; edge_port = usb_get_serial_port_data(port); if (!edge_port) { - dbg ("%s - edge_port not found", __func__); + dbg("%s - edge_port not found", __func__); return; } switch (function) { case TIUMP_INTERRUPT_CODE_LSR: - lsr = MapLineStatus(data[1]); + lsr = map_line_status(data[1]); if (lsr & UMP_UART_LSR_DATA_MASK) { - /* Save the LSR event for bulk read completion routine */ - dbg ("%s - LSR Event Port %u LSR Status = %02x", + /* Save the LSR event for bulk read + completion routine */ + dbg("%s - LSR Event Port %u LSR Status = %02x", __func__, port_number, lsr); edge_port->lsr_event = 1; edge_port->lsr_mask = lsr; } else { - dbg ("%s - ===== Port %d LSR Status = %02x ======", + dbg("%s - ===== Port %d LSR Status = %02x ======", __func__, port_number, lsr); - handle_new_lsr (edge_port, 0, lsr, 0); + handle_new_lsr(edge_port, 0, lsr, 0); } break; - case TIUMP_INTERRUPT_CODE_MSR: // MSR + case TIUMP_INTERRUPT_CODE_MSR: /* MSR */ /* Copy MSR from UMP */ msr = data[1]; - dbg ("%s - ===== Port %u MSR Status = %02x ======\n", + dbg("%s - ===== Port %u MSR Status = %02x ======\n", __func__, port_number, msr); - handle_new_msr (edge_port, msr); + handle_new_msr(edge_port, msr); break; default: - dev_err (&urb->dev->dev, "%s - Unknown Interrupt code from UMP %x\n", - __func__, data[1]); + dev_err(&urb->dev->dev, + "%s - Unknown Interrupt code from UMP %x\n", + __func__, data[1]); break; - + } exit: - retval = usb_submit_urb (urb, GFP_ATOMIC); + retval = usb_submit_urb(urb, GFP_ATOMIC); if (retval) - dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", + dev_err(&urb->dev->dev, + "%s - usb_submit_urb failed with result %d\n", __func__, retval); } -static void edge_bulk_in_callback (struct urb *urb) +static void edge_bulk_in_callback(struct urb *urb) { struct edgeport_port *edge_port = urb->context; unsigned char *data = urb->transfer_buffer; @@ -1824,15 +1703,16 @@ static void edge_bulk_in_callback (struct urb *urb) __func__, status); return; default: - dev_err (&urb->dev->dev,"%s - nonzero read bulk status received: %d\n", - __func__, status); + dev_err(&urb->dev->dev, + "%s - nonzero read bulk status received: %d\n", + __func__, status); } if (status == -EPIPE) goto exit; if (status) { - dev_err(&urb->dev->dev,"%s - stopping read!\n", __func__); + dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__); return; } @@ -1840,9 +1720,9 @@ static void edge_bulk_in_callback (struct urb *urb) if (edge_port->lsr_event) { edge_port->lsr_event = 0; - dbg ("%s ===== Port %u LSR Status = %02x, Data = %02x ======", + dbg("%s ===== Port %u LSR Status = %02x, Data = %02x ======", __func__, port_number, edge_port->lsr_mask, *data); - handle_new_lsr (edge_port, 1, edge_port->lsr_mask, *data); + handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data); /* Adjust buffer length/pointer */ --urb->actual_length; ++data; @@ -1850,13 +1730,14 @@ static void edge_bulk_in_callback (struct urb *urb) tty = edge_port->port->tty; if (tty && urb->actual_length) { - usb_serial_debug_data(debug, &edge_port->port->dev, __func__, urb->actual_length, data); - - if (edge_port->close_pending) { - dbg ("%s - close is pending, dropping data on the floor.", __func__); - } else { - edge_tty_recv(&edge_port->port->dev, tty, data, urb->actual_length); - } + usb_serial_debug_data(debug, &edge_port->port->dev, + __func__, urb->actual_length, data); + if (edge_port->close_pending) + dbg("%s - close pending, dropping data on the floor", + __func__); + else + edge_tty_recv(&edge_port->port->dev, tty, data, + urb->actual_length); edge_port->icount.rx += urb->actual_length; } @@ -1871,37 +1752,31 @@ exit: } spin_unlock(&edge_port->ep_lock); if (retval) - dev_err (&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", + dev_err(&urb->dev->dev, + "%s - usb_submit_urb failed with result %d\n", __func__, retval); } -static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length) +static void edge_tty_recv(struct device *dev, struct tty_struct *tty, + unsigned char *data, int length) { - int cnt; - - do { - cnt = tty_buffer_request_room(tty, length); - if (cnt < length) { - dev_err(dev, "%s - dropping data, %d bytes lost\n", - __func__, length - cnt); - if(cnt == 0) - break; - } - tty_insert_flip_string(tty, data, cnt); - data += cnt; - length -= cnt; - } while (length > 0); + int queued; + tty_buffer_request_room(tty, length); + queued = tty_insert_flip_string(tty, data, length); + if (queued < length) + dev_err(dev, "%s - dropping data, %d bytes lost\n", + __func__, length - queued); tty_flip_buffer_push(tty); } -static void edge_bulk_out_callback (struct urb *urb) +static void edge_bulk_out_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct edgeport_port *edge_port = usb_get_serial_port_data(port); int status = urb->status; - dbg ("%s - port %d", __func__, port->number); + dbg("%s - port %d", __func__, port->number); edge_port->ep_write_urb_in_use = 0; @@ -1925,7 +1800,7 @@ static void edge_bulk_out_callback (struct urb *urb) edge_send(port); } -static int edge_open (struct usb_serial_port *port, struct file * filp) +static int edge_open(struct usb_serial_port *port, struct file *filp) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); struct edgeport_serial *edge_serial; @@ -1945,118 +1820,119 @@ static int edge_open (struct usb_serial_port *port, struct file * filp) port_number = port->number - port->serial->minor; switch (port_number) { - case 0: - edge_port->uart_base = UMPMEM_BASE_UART1; - edge_port->dma_address = UMPD_OEDB1_ADDRESS; - break; - case 1: - edge_port->uart_base = UMPMEM_BASE_UART2; - edge_port->dma_address = UMPD_OEDB2_ADDRESS; - break; - default: - dev_err (&port->dev, "Unknown port number!!!\n"); - return -ENODEV; + case 0: + edge_port->uart_base = UMPMEM_BASE_UART1; + edge_port->dma_address = UMPD_OEDB1_ADDRESS; + break; + case 1: + edge_port->uart_base = UMPMEM_BASE_UART2; + edge_port->dma_address = UMPD_OEDB2_ADDRESS; + break; + default: + dev_err(&port->dev, "Unknown port number!!!\n"); + return -ENODEV; } - dbg ("%s - port_number = %d, uart_base = %04x, dma_address = %04x", - __func__, port_number, edge_port->uart_base, edge_port->dma_address); + dbg("%s - port_number = %d, uart_base = %04x, dma_address = %04x", + __func__, port_number, edge_port->uart_base, + edge_port->dma_address); dev = port->serial->dev; - memset (&(edge_port->icount), 0x00, sizeof(edge_port->icount)); - init_waitqueue_head (&edge_port->delta_msr_wait); + memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount)); + init_waitqueue_head(&edge_port->delta_msr_wait); /* turn off loopback */ - status = TIClearLoopBack (edge_port); + status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); if (status) { - dev_err(&port->dev,"%s - cannot send clear loopback command, %d\n", + dev_err(&port->dev, + "%s - cannot send clear loopback command, %d\n", __func__, status); return status; } - + /* set up the port settings */ - edge_set_termios (port, port->tty->termios); + edge_set_termios(port, port->tty->termios); /* open up the port */ /* milliseconds to timeout for DMA transfer */ transaction_timeout = 2; - edge_port->ump_read_timeout = max (20, ((transaction_timeout * 3) / 2) ); + edge_port->ump_read_timeout = + max(20, ((transaction_timeout * 3) / 2)); - // milliseconds to timeout for DMA transfer - open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | - UMP_PIPE_TRANS_TIMEOUT_ENA | + /* milliseconds to timeout for DMA transfer */ + open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | + UMP_PIPE_TRANS_TIMEOUT_ENA | (transaction_timeout << 2)); - dbg ("%s - Sending UMPC_OPEN_PORT", __func__); + dbg("%s - Sending UMPC_OPEN_PORT", __func__); /* Tell TI to open and start the port */ - status = TIWriteCommandSync (dev, - UMPC_OPEN_PORT, - (u8)(UMPM_UART1_PORT + port_number), - open_settings, - NULL, - 0); + status = send_cmd(dev, UMPC_OPEN_PORT, + (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0); if (status) { - dev_err(&port->dev,"%s - cannot send open command, %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot send open command, %d\n", + __func__, status); return status; } /* Start the DMA? */ - status = TIWriteCommandSync (dev, - UMPC_START_PORT, - (u8)(UMPM_UART1_PORT + port_number), - 0, - NULL, - 0); + status = send_cmd(dev, UMPC_START_PORT, + (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); if (status) { - dev_err(&port->dev,"%s - cannot send start DMA command, %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot send start DMA command, %d\n", + __func__, status); return status; } /* Clear TX and RX buffers in UMP */ - status = TIPurgeDataSync (port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); + status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); if (status) { - dev_err(&port->dev,"%s - cannot send clear buffers command, %d\n", __func__, status); + dev_err(&port->dev, + "%s - cannot send clear buffers command, %d\n", + __func__, status); return status; } /* Read Initial MSR */ - status = TIReadVendorRequestSync (dev, - UMPC_READ_MSR, // Request - 0, // wValue - (__u16)(UMPM_UART1_PORT + port_number), // wIndex (Address) - &edge_port->shadow_msr, // TransferBuffer - 1); // TransferBufferLength + status = ti_vread_sync(dev, UMPC_READ_MSR, 0, + (__u16)(UMPM_UART1_PORT + port_number), + &edge_port->shadow_msr, 1); if (status) { - dev_err(&port->dev,"%s - cannot send read MSR command, %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot send read MSR command, %d\n", + __func__, status); return status; } - dbg ("ShadowMSR 0x%X", edge_port->shadow_msr); - + dbg("ShadowMSR 0x%X", edge_port->shadow_msr); + /* Set Initial MCR */ edge_port->shadow_mcr = MCR_RTS | MCR_DTR; - dbg ("ShadowMCR 0x%X", edge_port->shadow_mcr); + dbg("ShadowMCR 0x%X", edge_port->shadow_mcr); edge_serial = edge_port->edge_serial; if (mutex_lock_interruptible(&edge_serial->es_lock)) return -ERESTARTSYS; if (edge_serial->num_ports_open == 0) { - /* we are the first port to be opened, let's post the interrupt urb */ + /* we are the first port to open, post the interrupt urb */ urb = edge_serial->serial->port[0]->interrupt_in_urb; if (!urb) { - dev_err (&port->dev, "%s - no interrupt urb present, exiting\n", __func__); + dev_err(&port->dev, + "%s - no interrupt urb present, exiting\n", + __func__); status = -EINVAL; goto release_es_lock; } urb->complete = edge_interrupt_callback; urb->context = edge_serial; urb->dev = dev; - status = usb_submit_urb (urb, GFP_KERNEL); + status = usb_submit_urb(urb, GFP_KERNEL); if (status) { - dev_err (&port->dev, "%s - usb_submit_urb failed with value %d\n", __func__, status); + dev_err(&port->dev, + "%s - usb_submit_urb failed with value %d\n", + __func__, status); goto release_es_lock; } } @@ -2065,13 +1941,14 @@ static int edge_open (struct usb_serial_port *port, struct file * filp) * reset the data toggle on the bulk endpoints to work around bug in * host controllers where things get out of sync some times */ - usb_clear_halt (dev, port->write_urb->pipe); - usb_clear_halt (dev, port->read_urb->pipe); + usb_clear_halt(dev, port->write_urb->pipe); + usb_clear_halt(dev, port->read_urb->pipe); /* start up our bulk read urb */ urb = port->read_urb; if (!urb) { - dev_err (&port->dev, "%s - no read urb present, exiting\n", __func__); + dev_err(&port->dev, "%s - no read urb present, exiting\n", + __func__); status = -EINVAL; goto unlink_int_urb; } @@ -2079,9 +1956,11 @@ static int edge_open (struct usb_serial_port *port, struct file * filp) urb->complete = edge_bulk_in_callback; urb->context = edge_port; urb->dev = dev; - status = usb_submit_urb (urb, GFP_KERNEL); + status = usb_submit_urb(urb, GFP_KERNEL); if (status) { - dev_err (&port->dev, "%s - read bulk usb_submit_urb failed with value %d\n", __func__, status); + dev_err(&port->dev, + "%s - read bulk usb_submit_urb failed with value %d\n", + __func__, status); goto unlink_int_urb; } @@ -2099,7 +1978,7 @@ release_es_lock: return status; } -static void edge_close (struct usb_serial_port *port, struct file *filp) +static void edge_close(struct usb_serial_port *port, struct file *filp) { struct edgeport_serial *edge_serial; struct edgeport_port *edge_port; @@ -2107,18 +1986,18 @@ static void edge_close (struct usb_serial_port *port, struct file *filp) int status; dbg("%s - port %d", __func__, port->number); - + edge_serial = usb_get_serial_data(port->serial); edge_port = usb_get_serial_port_data(port); - if ((edge_serial == NULL) || (edge_port == NULL)) + if (edge_serial == NULL || edge_port == NULL) return; - - /* The bulkreadcompletion routine will check + + /* The bulkreadcompletion routine will check * this flag and dump add read data */ edge_port->close_pending = 1; /* chase the port close and flush */ - TIChasePort (edge_port, (HZ*closing_wait)/100, 1); + chase_port(edge_port, (HZ * closing_wait) / 100, 1); usb_kill_urb(port->read_urb); usb_kill_urb(port->write_urb); @@ -2128,7 +2007,7 @@ static void edge_close (struct usb_serial_port *port, struct file *filp) * send a close port command to it */ dbg("%s - send umpc_close_port", __func__); port_number = port->number - port->serial->minor; - status = TIWriteCommandSync (port->serial->dev, + status = send_cmd(port->serial->dev, UMPC_CLOSE_PORT, (__u8)(UMPM_UART1_PORT + port_number), 0, @@ -2147,7 +2026,8 @@ static void edge_close (struct usb_serial_port *port, struct file *filp) dbg("%s - exited", __func__); } -static int edge_write (struct usb_serial_port *port, const unsigned char *data, int count) +static int edge_write(struct usb_serial_port *port, const unsigned char *data, + int count) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); unsigned long flags; @@ -2203,11 +2083,12 @@ static void edge_send(struct usb_serial_port *port) spin_unlock_irqrestore(&edge_port->ep_lock, flags); - usb_serial_debug_data(debug, &port->dev, __func__, count, port->write_urb->transfer_buffer); + usb_serial_debug_data(debug, &port->dev, __func__, count, + port->write_urb->transfer_buffer); /* set up our urb */ - usb_fill_bulk_urb (port->write_urb, port->serial->dev, - usb_sndbulkpipe (port->serial->dev, + usb_fill_bulk_urb(port->write_urb, port->serial->dev, + usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, count, edge_bulk_out_callback, @@ -2216,22 +2097,21 @@ static void edge_send(struct usb_serial_port *port) /* send the data out the bulk port */ result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) { - dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); edge_port->ep_write_urb_in_use = 0; - // TODO: reschedule edge_send - } else { + /* TODO: reschedule edge_send */ + } else edge_port->icount.tx += count; - } /* wakeup any process waiting for writes to complete */ /* there is now more room in the buffer for new writes */ - if (tty) { - /* let the tty driver wakeup if it has a special write_wakeup function */ + if (tty) tty_wakeup(tty); - } } -static int edge_write_room (struct usb_serial_port *port) +static int edge_write_room(struct usb_serial_port *port) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); int room = 0; @@ -2240,9 +2120,9 @@ static int edge_write_room (struct usb_serial_port *port) dbg("%s - port %d", __func__, port->number); if (edge_port == NULL) - return -ENODEV; + return 0; if (edge_port->close_pending == 1) - return -ENODEV; + return 0; spin_lock_irqsave(&edge_port->ep_lock, flags); room = edge_buf_space_avail(edge_port->ep_out_buf); @@ -2252,7 +2132,7 @@ static int edge_write_room (struct usb_serial_port *port) return room; } -static int edge_chars_in_buffer (struct usb_serial_port *port) +static int edge_chars_in_buffer(struct usb_serial_port *port) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); int chars = 0; @@ -2261,22 +2141,22 @@ static int edge_chars_in_buffer (struct usb_serial_port *port) dbg("%s - port %d", __func__, port->number); if (edge_port == NULL) - return -ENODEV; + return 0; if (edge_port->close_pending == 1) - return -ENODEV; + return 0; spin_lock_irqsave(&edge_port->ep_lock, flags); chars = edge_buf_data_avail(edge_port->ep_out_buf); spin_unlock_irqrestore(&edge_port->ep_lock, flags); - dbg ("%s - returns %d", __func__, chars); + dbg("%s - returns %d", __func__, chars); return chars; } -static void edge_throttle (struct usb_serial_port *port) +static void edge_throttle(struct usb_serial_port *port) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct tty_struct *tty; + struct tty_struct *tty = port->tty; int status; dbg("%s - port %d", __func__, port->number); @@ -2284,19 +2164,14 @@ static void edge_throttle (struct usb_serial_port *port) if (edge_port == NULL) return; - tty = port->tty; - if (!tty) { - dbg ("%s - no tty available", __func__); - return; - } - /* if we are implementing XON/XOFF, send the stop character */ if (I_IXOFF(tty)) { unsigned char stop_char = STOP_CHAR(tty); - status = edge_write (port, &stop_char, 1); - if (status <= 0) { - dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); - } + status = edge_write(port, &stop_char, 1); + if (status <= 0) + dev_err(&port->dev, + "%s - failed to write stop character, %d\n", + __func__, status); } /* if we are implementing RTS/CTS, stop reads */ @@ -2306,10 +2181,10 @@ static void edge_throttle (struct usb_serial_port *port) } -static void edge_unthrottle (struct usb_serial_port *port) +static void edge_unthrottle(struct usb_serial_port *port) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); - struct tty_struct *tty; + struct tty_struct *tty = port->tty; int status; dbg("%s - port %d", __func__, port->number); @@ -2317,27 +2192,23 @@ static void edge_unthrottle (struct usb_serial_port *port) if (edge_port == NULL) return; - tty = port->tty; - if (!tty) { - dbg ("%s - no tty available", __func__); - return; - } - /* if we are implementing XON/XOFF, send the start character */ if (I_IXOFF(tty)) { unsigned char start_char = START_CHAR(tty); - status = edge_write (port, &start_char, 1); - if (status <= 0) { - dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); - } + status = edge_write(port, &start_char, 1); + if (status <= 0) + dev_err(&port->dev, + "%s - failed to write start character, %d\n", + __func__, status); } - /* if we are implementing RTS/CTS, restart reads */ /* are the Edgeport will assert the RTS line */ if (C_CRTSCTS(tty)) { status = restart_read(edge_port); if (status) - dev_err(&port->dev, "%s - read bulk usb_submit_urb failed with value %d\n", __func__, status); + dev_err(&port->dev, + "%s - read bulk usb_submit_urb failed: %d\n", + __func__, status); } } @@ -2378,22 +2249,26 @@ static int restart_read(struct edgeport_port *edge_port) return status; } -static void change_port_settings (struct edgeport_port *edge_port, struct ktermios *old_termios) +static void change_port_settings(struct edgeport_port *edge_port, + struct ktermios *old_termios) { struct ump_uart_config *config; struct tty_struct *tty; int baud; unsigned cflag; int status; - int port_number = edge_port->port->number - edge_port->port->serial->minor; + int port_number = edge_port->port->number - + edge_port->port->serial->minor; dbg("%s - port %d", __func__, edge_port->port->number); tty = edge_port->port->tty; - config = kmalloc (sizeof (*config), GFP_KERNEL); + config = kmalloc(sizeof(*config), GFP_KERNEL); if (!config) { - dev_err (&edge_port->port->dev, "%s - out of memory\n", __func__); + *tty->termios = *old_termios; + dev_err(&edge_port->port->dev, "%s - out of memory\n", + __func__); return; } @@ -2407,22 +2282,22 @@ static void change_port_settings (struct edgeport_port *edge_port, struct ktermi config->bUartMode = (__u8)(edge_port->bUartMode); switch (cflag & CSIZE) { - case CS5: - config->bDataBits = UMP_UART_CHAR5BITS; - dbg ("%s - data bits = 5", __func__); - break; - case CS6: - config->bDataBits = UMP_UART_CHAR6BITS; - dbg ("%s - data bits = 6", __func__); - break; - case CS7: - config->bDataBits = UMP_UART_CHAR7BITS; - dbg ("%s - data bits = 7", __func__); - break; - default: - case CS8: - config->bDataBits = UMP_UART_CHAR8BITS; - dbg ("%s - data bits = 8", __func__); + case CS5: + config->bDataBits = UMP_UART_CHAR5BITS; + dbg("%s - data bits = 5", __func__); + break; + case CS6: + config->bDataBits = UMP_UART_CHAR6BITS; + dbg("%s - data bits = 6", __func__); + break; + case CS7: + config->bDataBits = UMP_UART_CHAR7BITS; + dbg("%s - data bits = 7", __func__); + break; + default: + case CS8: + config->bDataBits = UMP_UART_CHAR8BITS; + dbg("%s - data bits = 8", __func__); break; } @@ -2437,7 +2312,7 @@ static void change_port_settings (struct edgeport_port *edge_port, struct ktermi dbg("%s - parity = even", __func__); } } else { - config->bParity = UMP_UART_NOPARITY; + config->bParity = UMP_UART_NOPARITY; dbg("%s - parity = none", __func__); } @@ -2460,29 +2335,26 @@ static void change_port_settings (struct edgeport_port *edge_port, struct ktermi restart_read(edge_port); } - /* if we are implementing XON/XOFF, set the start and stop character in the device */ - if (I_IXOFF(tty) || I_IXON(tty)) { - config->cXon = START_CHAR(tty); - config->cXoff = STOP_CHAR(tty); + /* if we are implementing XON/XOFF, set the start and stop + character in the device */ + config->cXon = START_CHAR(tty); + config->cXoff = STOP_CHAR(tty); - /* if we are implementing INBOUND XON/XOFF */ - if (I_IXOFF(tty)) { - config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; - dbg ("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", - __func__, config->cXon, config->cXoff); - } else { - dbg ("%s - INBOUND XON/XOFF is disabled", __func__); - } + /* if we are implementing INBOUND XON/XOFF */ + if (I_IXOFF(tty)) { + config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; + dbg("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", + __func__, config->cXon, config->cXoff); + } else + dbg("%s - INBOUND XON/XOFF is disabled", __func__); - /* if we are implementing OUTBOUND XON/XOFF */ - if (I_IXON(tty)) { - config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; - dbg ("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", - __func__, config->cXon, config->cXoff); - } else { - dbg ("%s - OUTBOUND XON/XOFF is disabled", __func__); - } - } + /* if we are implementing OUTBOUND XON/XOFF */ + if (I_IXON(tty)) { + config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; + dbg("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", + __func__, config->cXon, config->cXoff); + } else + dbg("%s - OUTBOUND XON/XOFF is disabled", __func__); tty->termios->c_cflag &= ~CMSPAR; @@ -2499,62 +2371,52 @@ static void change_port_settings (struct edgeport_port *edge_port, struct ktermi /* FIXME: Recompute actual baud from divisor here */ - dbg ("%s - baud rate = %d, wBaudRate = %d", __func__, baud, config->wBaudRate); + dbg("%s - baud rate = %d, wBaudRate = %d", __func__, baud, + config->wBaudRate); - dbg ("wBaudRate: %d", (int)(461550L / config->wBaudRate)); - dbg ("wFlags: 0x%x", config->wFlags); - dbg ("bDataBits: %d", config->bDataBits); - dbg ("bParity: %d", config->bParity); - dbg ("bStopBits: %d", config->bStopBits); - dbg ("cXon: %d", config->cXon); - dbg ("cXoff: %d", config->cXoff); - dbg ("bUartMode: %d", config->bUartMode); + dbg("wBaudRate: %d", (int)(461550L / config->wBaudRate)); + dbg("wFlags: 0x%x", config->wFlags); + dbg("bDataBits: %d", config->bDataBits); + dbg("bParity: %d", config->bParity); + dbg("bStopBits: %d", config->bStopBits); + dbg("cXon: %d", config->cXon); + dbg("cXoff: %d", config->cXoff); + dbg("bUartMode: %d", config->bUartMode); /* move the word values into big endian mode */ - cpu_to_be16s (&config->wFlags); - cpu_to_be16s (&config->wBaudRate); + cpu_to_be16s(&config->wFlags); + cpu_to_be16s(&config->wBaudRate); - status = TIWriteCommandSync (edge_port->port->serial->dev, - UMPC_SET_CONFIG, + status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG, (__u8)(UMPM_UART1_PORT + port_number), - 0, - (__u8 *)config, - sizeof(*config)); - if (status) { - dbg ("%s - error %d when trying to write config to device", + 0, (__u8 *)config, sizeof(*config)); + if (status) + dbg("%s - error %d when trying to write config to device", __func__, status); - } - - kfree (config); - + kfree(config); return; } -static void edge_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) +static void edge_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); struct tty_struct *tty = port->tty; - unsigned int cflag; - - cflag = tty->termios->c_cflag; dbg("%s - clfag %08x iflag %08x", __func__, tty->termios->c_cflag, tty->termios->c_iflag); dbg("%s - old clfag %08x old iflag %08x", __func__, old_termios->c_cflag, old_termios->c_iflag); - dbg("%s - port %d", __func__, port->number); if (edge_port == NULL) return; - /* change the port settings to the new ones specified */ - change_port_settings (edge_port, old_termios); - - return; + change_port_settings(edge_port, old_termios); } -static int edge_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear) +static int edge_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); unsigned int mcr; @@ -2581,8 +2443,7 @@ static int edge_tiocmset (struct usb_serial_port *port, struct file *file, unsig edge_port->shadow_mcr = mcr; spin_unlock_irqrestore(&edge_port->ep_lock, flags); - TIRestoreMCR (edge_port, mcr); - + restore_mcr(edge_port, mcr); return 0; } @@ -2614,7 +2475,8 @@ static int edge_tiocmget(struct usb_serial_port *port, struct file *file) return result; } -static int get_serial_info (struct edgeport_port *edge_port, struct serial_struct __user *retinfo) +static int get_serial_info(struct edgeport_port *edge_port, + struct serial_struct __user *retinfo) { struct serial_struct tmp; @@ -2632,17 +2494,14 @@ static int get_serial_info (struct edgeport_port *edge_port, struct serial_struc tmp.baud_base = 9600; tmp.close_delay = 5*HZ; tmp.closing_wait = closing_wait; -// tmp.custom_divisor = state->custom_divisor; -// tmp.hub6 = state->hub6; -// tmp.io_type = state->io_type; - if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) return -EFAULT; return 0; } -static int edge_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg) +static int edge_ioctl(struct usb_serial_port *port, struct file *file, + unsigned int cmd, unsigned long arg) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); struct async_icount cnow; @@ -2651,81 +2510,63 @@ static int edge_ioctl (struct usb_serial_port *port, struct file *file, unsigned dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd); switch (cmd) { - case TIOCINQ: - dbg("%s - (%d) TIOCINQ", __func__, port->number); -// return get_number_bytes_avail(edge_port, (unsigned int *) arg); - break; - - case TIOCSERGETLSR: - dbg("%s - (%d) TIOCSERGETLSR", __func__, port->number); -// return get_lsr_info(edge_port, (unsigned int *) arg); - break; - - case TIOCGSERIAL: - dbg("%s - (%d) TIOCGSERIAL", __func__, port->number); - return get_serial_info(edge_port, (struct serial_struct __user *) arg); - break; - - case TIOCSSERIAL: - dbg("%s - (%d) TIOCSSERIAL", __func__, port->number); - break; - - case TIOCMIWAIT: - dbg("%s - (%d) TIOCMIWAIT", __func__, port->number); - cprev = edge_port->icount; - while (1) { - interruptible_sleep_on(&edge_port->delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - cnow = edge_port->icount; - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ - if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) { - return 0; - } - cprev = cnow; + case TIOCGSERIAL: + dbg("%s - (%d) TIOCGSERIAL", __func__, port->number); + return get_serial_info(edge_port, + (struct serial_struct __user *) arg); + case TIOCMIWAIT: + dbg("%s - (%d) TIOCMIWAIT", __func__, port->number); + cprev = edge_port->icount; + while (1) { + interruptible_sleep_on(&edge_port->delta_msr_wait); + /* see if a signal did it */ + if (signal_pending(current)) + return -ERESTARTSYS; + cnow = edge_port->icount; + if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && + cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) + return -EIO; /* no change => error */ + if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || + ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || + ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || + ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { + return 0; } - /* not reached */ - break; - - case TIOCGICOUNT: - dbg ("%s - (%d) TIOCGICOUNT RX=%d, TX=%d", __func__, - port->number, edge_port->icount.rx, edge_port->icount.tx); - if (copy_to_user((void __user *)arg, &edge_port->icount, sizeof(edge_port->icount))) - return -EFAULT; - return 0; + cprev = cnow; + } + /* not reached */ + break; + case TIOCGICOUNT: + dbg("%s - (%d) TIOCGICOUNT RX=%d, TX=%d", __func__, + port->number, edge_port->icount.rx, edge_port->icount.tx); + if (copy_to_user((void __user *)arg, &edge_port->icount, + sizeof(edge_port->icount))) + return -EFAULT; + return 0; } - return -ENOIOCTLCMD; } -static void edge_break (struct usb_serial_port *port, int break_state) +static void edge_break(struct usb_serial_port *port, int on) { struct edgeport_port *edge_port = usb_get_serial_port_data(port); int status; + int bv = 0; /* Off */ - dbg ("%s - state = %d", __func__, break_state); + dbg("%s - state = %d", __func__, on); /* chase the port close */ - TIChasePort (edge_port, 0, 0); + chase_port(edge_port, 0, 0); - if (break_state == -1) { - status = TISetBreak (edge_port); - } else { - status = TIClearBreak (edge_port); - } - if (status) { - dbg ("%s - error %d sending break set/clear command.", + if (on == -1) + bv = 1; /* On */ + status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv); + if (status) + dbg("%s - error %d sending break set/clear command.", __func__, status); - } } -static int edge_startup (struct usb_serial *serial) +static int edge_startup(struct usb_serial *serial) { struct edgeport_serial *edge_serial; struct edgeport_port *edge_port; @@ -2745,9 +2586,9 @@ static int edge_startup (struct usb_serial *serial) edge_serial->serial = serial; usb_set_serial_data(serial, edge_serial); - status = TIDownloadFirmware (edge_serial); + status = download_fw(edge_serial); if (status) { - kfree (edge_serial); + kfree(edge_serial); return status; } @@ -2755,13 +2596,15 @@ static int edge_startup (struct usb_serial *serial) for (i = 0; i < serial->num_ports; ++i) { edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL); if (edge_port == NULL) { - dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); + dev_err(&serial->dev->dev, "%s - Out of memory\n", + __func__); goto cleanup; } spin_lock_init(&edge_port->ep_lock); edge_port->ep_out_buf = edge_buf_alloc(EDGE_OUT_BUF_SIZE); if (edge_port->ep_out_buf == NULL) { - dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); + dev_err(&serial->dev->dev, "%s - Out of memory\n", + __func__); kfree(edge_port); goto cleanup; } @@ -2770,27 +2613,27 @@ static int edge_startup (struct usb_serial *serial) usb_set_serial_port_data(serial->port[i], edge_port); edge_port->bUartMode = default_uart_mode; } - + return 0; cleanup: - for (--i; i>=0; --i) { + for (--i; i >= 0; --i) { edge_port = usb_get_serial_port_data(serial->port[i]); edge_buf_free(edge_port->ep_out_buf); kfree(edge_port); usb_set_serial_port_data(serial->port[i], NULL); } - kfree (edge_serial); + kfree(edge_serial); usb_set_serial_data(serial, NULL); return -ENOMEM; } -static void edge_shutdown (struct usb_serial *serial) +static void edge_shutdown(struct usb_serial *serial) { int i; struct edgeport_port *edge_port; - dbg ("%s", __func__); + dbg("%s", __func__); for (i = 0; i < serial->num_ports; ++i) { edge_port = usb_get_serial_port_data(serial->port[i]); @@ -2832,7 +2675,8 @@ static ssize_t store_uart_mode(struct device *dev, return count; } -static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, store_uart_mode); +static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, + store_uart_mode); static int edge_create_sysfs_attrs(struct usb_serial_port *port) { @@ -2902,9 +2746,9 @@ static void edge_buf_free(struct edge_buf *eb) static void edge_buf_clear(struct edge_buf *eb) { - if (eb != NULL) - eb->buf_get = eb->buf_put; - /* equivalent to a get of all data available */ + if (eb != NULL) + eb->buf_get = eb->buf_put; + /* equivalent to a get of all data available */ } @@ -2917,10 +2761,9 @@ static void edge_buf_clear(struct edge_buf *eb) static unsigned int edge_buf_data_avail(struct edge_buf *eb) { - if (eb != NULL) - return ((eb->buf_size + eb->buf_put - eb->buf_get) % eb->buf_size); - else + if (eb == NULL) return 0; + return ((eb->buf_size + eb->buf_put - eb->buf_get) % eb->buf_size); } @@ -2933,10 +2776,9 @@ static unsigned int edge_buf_data_avail(struct edge_buf *eb) static unsigned int edge_buf_space_avail(struct edge_buf *eb) { - if (eb != NULL) - return ((eb->buf_size + eb->buf_get - eb->buf_put - 1) % eb->buf_size); - else + if (eb == NULL) return 0; + return ((eb->buf_size + eb->buf_get - eb->buf_put - 1) % eb->buf_size); } @@ -3093,7 +2935,7 @@ static int __init edgeport_init(void) if (retval) goto failed_2port_device_register; retval = usb_register(&io_driver); - if (retval) + if (retval) goto failed_usb_register; info(DRIVER_DESC " " DRIVER_VERSION); return 0; @@ -3105,11 +2947,11 @@ failed_1port_device_register: return retval; } -static void __exit edgeport_exit (void) +static void __exit edgeport_exit(void) { - usb_deregister (&io_driver); - usb_serial_deregister (&edgeport_1port_device); - usb_serial_deregister (&edgeport_2port_device); + usb_deregister(&io_driver); + usb_serial_deregister(&edgeport_1port_device); + usb_serial_deregister(&edgeport_2port_device); } module_init(edgeport_init); @@ -3130,8 +2972,8 @@ module_param(closing_wait, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(ignore_cpu_rev, "Ignore the cpu revision when connecting to a device"); +MODULE_PARM_DESC(ignore_cpu_rev, + "Ignore the cpu revision when connecting to a device"); module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); - diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 004d57385a75..0063c11c8081 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -19,7 +19,12 @@ * was written by Roman Weissgaerber <weissg@vienna.at>, Dag Brattli * <dag@brattli.net>, and Jean Tourrilhes <jt@hpl.hp.com> * - * See Documentation/usb/usb-serial.txt for more information on using this driver + * See Documentation/usb/usb-serial.txt for more information on using this + * driver + * + * 2008_Jun_02 Felipe Balbi <me@felipebalbi.com> + * Introduced common header to be used also in USB Gadget Framework. + * Still needs some other style fixes. * * 2007_Jun_21 Alan Cox <alan@redhat.com> * Minimal cleanups for some of the driver problens and tty layer abuse. @@ -59,9 +64,10 @@ #include <linux/tty_flip.h> #include <linux/module.h> #include <linux/spinlock.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> +#include <linux/usb/irda.h> /* * Version Information @@ -70,100 +76,75 @@ #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>" #define DRIVER_DESC "USB IR Dongle driver" -/* USB IrDA class spec information */ -#define USB_CLASS_IRDA 0x02 -#define USB_DT_IRDA 0x21 -#define IU_REQ_GET_CLASS_DESC 0x06 -#define SPEED_2400 0x01 -#define SPEED_9600 0x02 -#define SPEED_19200 0x03 -#define SPEED_38400 0x04 -#define SPEED_57600 0x05 -#define SPEED_115200 0x06 -#define SPEED_576000 0x07 -#define SPEED_1152000 0x08 -#define SPEED_4000000 0x09 - -struct irda_class_desc { - u8 bLength; - u8 bDescriptorType; - u16 bcdSpecRevision; - u8 bmDataSize; - u8 bmWindowSize; - u8 bmMinTurnaroundTime; - u16 wBaudRate; - u8 bmAdditionalBOFs; - u8 bIrdaRateSniff; - u8 bMaxUnicastList; -} __attribute__ ((packed)); - static int debug; /* if overridden by the user, then use their value for the size of the read and * write urbs */ static int buffer_size; + /* if overridden by the user, then use the specified number of XBOFs */ static int xbof = -1; -static int ir_startup (struct usb_serial *serial); -static int ir_open (struct usb_serial_port *port, struct file *filep); -static void ir_close (struct usb_serial_port *port, struct file *filep); -static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int count); -static void ir_write_bulk_callback (struct urb *urb); -static void ir_read_bulk_callback (struct urb *urb); -static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_termios); +static int ir_startup(struct usb_serial *serial); +static int ir_open(struct usb_serial_port *port, struct file *filep); +static void ir_close(struct usb_serial_port *port, struct file *filep); +static int ir_write(struct usb_serial_port *port, + const unsigned char *buf, int count); +static void ir_write_bulk_callback(struct urb *urb); +static void ir_read_bulk_callback(struct urb *urb); +static void ir_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios); /* Not that this lot means you can only have one per system */ -static u8 ir_baud = 0; -static u8 ir_xbof = 0; -static u8 ir_add_bof = 0; +static u8 ir_baud; +static u8 ir_xbof; +static u8 ir_add_bof; -static struct usb_device_id id_table [] = { +static struct usb_device_id ir_id_table[] = { { USB_DEVICE(0x050f, 0x0180) }, /* KC Technology, KC-180 */ { USB_DEVICE(0x08e9, 0x0100) }, /* XTNDAccess */ { USB_DEVICE(0x09c4, 0x0011) }, /* ACTiSys ACT-IR2000U */ - { USB_INTERFACE_INFO (USB_CLASS_APP_SPEC, USB_CLASS_IRDA, 0) }, + { USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, USB_SUBCLASS_IRDA, 0) }, { } /* Terminating entry */ }; -MODULE_DEVICE_TABLE (usb, id_table); +MODULE_DEVICE_TABLE(usb, ir_id_table); static struct usb_driver ir_driver = { - .name = "ir-usb", - .probe = usb_serial_probe, - .disconnect = usb_serial_disconnect, - .id_table = id_table, - .no_dynamic_id = 1, + .name = "ir-usb", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = ir_id_table, + .no_dynamic_id = 1, }; - static struct usb_serial_driver ir_device = { - .driver = { - .owner = THIS_MODULE, - .name = "ir-usb", + .driver = { + .owner = THIS_MODULE, + .name = "ir-usb", }, - .description = "IR Dongle", - .usb_driver = &ir_driver, - .id_table = id_table, - .num_ports = 1, - .set_termios = ir_set_termios, - .attach = ir_startup, - .open = ir_open, - .close = ir_close, - .write = ir_write, - .write_bulk_callback = ir_write_bulk_callback, - .read_bulk_callback = ir_read_bulk_callback, + .description = "IR Dongle", + .usb_driver = &ir_driver, + .id_table = ir_id_table, + .num_ports = 1, + .set_termios = ir_set_termios, + .attach = ir_startup, + .open = ir_open, + .close = ir_close, + .write = ir_write, + .write_bulk_callback = ir_write_bulk_callback, + .read_bulk_callback = ir_read_bulk_callback, }; -static inline void irda_usb_dump_class_desc(struct irda_class_desc *desc) +static inline void irda_usb_dump_class_desc(struct usb_irda_cs_descriptor *desc) { dbg("bLength=%x", desc->bLength); dbg("bDescriptorType=%x", desc->bDescriptorType); - dbg("bcdSpecRevision=%x", desc->bcdSpecRevision); + dbg("bcdSpecRevision=%x", __le16_to_cpu(desc->bcdSpecRevision)); dbg("bmDataSize=%x", desc->bmDataSize); dbg("bmWindowSize=%x", desc->bmWindowSize); dbg("bmMinTurnaroundTime=%d", desc->bmMinTurnaroundTime); - dbg("wBaudRate=%x", desc->wBaudRate); + dbg("wBaudRate=%x", __le16_to_cpu(desc->wBaudRate)); dbg("bmAdditionalBOFs=%x", desc->bmAdditionalBOFs); dbg("bIrdaRateSniff=%x", desc->bIrdaRateSniff); dbg("bMaxUnicastList=%x", desc->bMaxUnicastList); @@ -181,35 +162,37 @@ static inline void irda_usb_dump_class_desc(struct irda_class_desc *desc) * * Based on the same function in drivers/net/irda/irda-usb.c */ -static struct irda_class_desc *irda_usb_find_class_desc(struct usb_device *dev, unsigned int ifnum) +static struct usb_irda_cs_descriptor * +irda_usb_find_class_desc(struct usb_device *dev, unsigned int ifnum) { - struct irda_class_desc *desc; + struct usb_irda_cs_descriptor *desc; int ret; - - desc = kzalloc(sizeof (struct irda_class_desc), GFP_KERNEL); - if (desc == NULL) + + desc = kzalloc(sizeof(*desc), GFP_KERNEL); + if (!desc) return NULL; - - ret = usb_control_msg(dev, usb_rcvctrlpipe(dev,0), - IU_REQ_GET_CLASS_DESC, + + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + USB_REQ_CS_IRDA_GET_CLASS_DESC, USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, ifnum, desc, sizeof(*desc), 1000); - + dbg("%s - ret=%d", __func__, ret); if (ret < sizeof(*desc)) { dbg("%s - class descriptor read %s (%d)", __func__, - (ret<0) ? "failed" : "too short", + (ret < 0) ? "failed" : "too short", ret); goto error; } - if (desc->bDescriptorType != USB_DT_IRDA) { + if (desc->bDescriptorType != USB_DT_CS_IRDA) { dbg("%s - bad class descriptor type", __func__); goto error; } - + irda_usb_dump_class_desc(desc); return desc; + error: kfree(desc); return NULL; @@ -219,64 +202,100 @@ error: static u8 ir_xbof_change(u8 xbof) { u8 result; + /* reference irda-usb.c */ - switch(xbof) { - case 48: result = 0x10; break; - case 28: - case 24: result = 0x20; break; - default: - case 12: result = 0x30; break; - case 5: - case 6: result = 0x40; break; - case 3: result = 0x50; break; - case 2: result = 0x60; break; - case 1: result = 0x70; break; - case 0: result = 0x80; break; + switch (xbof) { + case 48: + result = 0x10; + break; + case 28: + case 24: + result = 0x20; + break; + default: + case 12: + result = 0x30; + break; + case 5: + case 6: + result = 0x40; + break; + case 3: + result = 0x50; + break; + case 2: + result = 0x60; + break; + case 1: + result = 0x70; + break; + case 0: + result = 0x80; + break; } + return(result); } -static int ir_startup (struct usb_serial *serial) +static int ir_startup(struct usb_serial *serial) { - struct irda_class_desc *irda_desc; + struct usb_irda_cs_descriptor *irda_desc; - irda_desc = irda_usb_find_class_desc (serial->dev, 0); - if (irda_desc == NULL) { - dev_err (&serial->dev->dev, "IRDA class descriptor not found, device not bound\n"); + irda_desc = irda_usb_find_class_desc(serial->dev, 0); + if (!irda_desc) { + dev_err(&serial->dev->dev, + "IRDA class descriptor not found, device not bound\n"); return -ENODEV; } - dbg ("%s - Baud rates supported:%s%s%s%s%s%s%s%s%s", + dbg("%s - Baud rates supported:%s%s%s%s%s%s%s%s%s", __func__, - (irda_desc->wBaudRate & 0x0001) ? " 2400" : "", - (irda_desc->wBaudRate & 0x0002) ? " 9600" : "", - (irda_desc->wBaudRate & 0x0004) ? " 19200" : "", - (irda_desc->wBaudRate & 0x0008) ? " 38400" : "", - (irda_desc->wBaudRate & 0x0010) ? " 57600" : "", - (irda_desc->wBaudRate & 0x0020) ? " 115200" : "", - (irda_desc->wBaudRate & 0x0040) ? " 576000" : "", - (irda_desc->wBaudRate & 0x0080) ? " 1152000" : "", - (irda_desc->wBaudRate & 0x0100) ? " 4000000" : ""); - - switch( irda_desc->bmAdditionalBOFs ) { - case 0x01: ir_add_bof = 48; break; - case 0x02: ir_add_bof = 24; break; - case 0x04: ir_add_bof = 12; break; - case 0x08: ir_add_bof = 6; break; - case 0x10: ir_add_bof = 3; break; - case 0x20: ir_add_bof = 2; break; - case 0x40: ir_add_bof = 1; break; - case 0x80: ir_add_bof = 0; break; - default:; + (irda_desc->wBaudRate & USB_IRDA_BR_2400) ? " 2400" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_9600) ? " 9600" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_19200) ? " 19200" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_38400) ? " 38400" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_57600) ? " 57600" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_115200) ? " 115200" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_576000) ? " 576000" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_1152000) ? " 1152000" : "", + (irda_desc->wBaudRate & USB_IRDA_BR_4000000) ? " 4000000" : ""); + + switch (irda_desc->bmAdditionalBOFs) { + case USB_IRDA_AB_48: + ir_add_bof = 48; + break; + case USB_IRDA_AB_24: + ir_add_bof = 24; + break; + case USB_IRDA_AB_12: + ir_add_bof = 12; + break; + case USB_IRDA_AB_6: + ir_add_bof = 6; + break; + case USB_IRDA_AB_3: + ir_add_bof = 3; + break; + case USB_IRDA_AB_2: + ir_add_bof = 2; + break; + case USB_IRDA_AB_1: + ir_add_bof = 1; + break; + case USB_IRDA_AB_0: + ir_add_bof = 0; + break; + default: + break; } - kfree (irda_desc); + kfree(irda_desc); - return 0; + return 0; } -static int ir_open (struct usb_serial_port *port, struct file *filp) +static int ir_open(struct usb_serial_port *port, struct file *filp) { char *buffer; int result = 0; @@ -285,51 +304,55 @@ static int ir_open (struct usb_serial_port *port, struct file *filp) if (buffer_size) { /* override the default buffer sizes */ - buffer = kmalloc (buffer_size, GFP_KERNEL); + buffer = kmalloc(buffer_size, GFP_KERNEL); if (!buffer) { - dev_err (&port->dev, "%s - out of memory.\n", __func__); + dev_err(&port->dev, "%s - out of memory.\n", __func__); return -ENOMEM; } - kfree (port->read_urb->transfer_buffer); + kfree(port->read_urb->transfer_buffer); port->read_urb->transfer_buffer = buffer; port->read_urb->transfer_buffer_length = buffer_size; - buffer = kmalloc (buffer_size, GFP_KERNEL); + buffer = kmalloc(buffer_size, GFP_KERNEL); if (!buffer) { - dev_err (&port->dev, "%s - out of memory.\n", __func__); + dev_err(&port->dev, "%s - out of memory.\n", __func__); return -ENOMEM; } - kfree (port->write_urb->transfer_buffer); + kfree(port->write_urb->transfer_buffer); port->write_urb->transfer_buffer = buffer; port->write_urb->transfer_buffer_length = buffer_size; port->bulk_out_size = buffer_size; } /* Start reading from the device */ - usb_fill_bulk_urb ( + usb_fill_bulk_urb( port->read_urb, - port->serial->dev, - usb_rcvbulkpipe(port->serial->dev, port->bulk_in_endpointAddress), + port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, ir_read_bulk_callback, port); result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) - dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __func__, result); + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", + __func__, result); return result; } -static void ir_close (struct usb_serial_port *port, struct file * filp) +static void ir_close(struct usb_serial_port *port, struct file *filp) { dbg("%s - port %d", __func__, port->number); - + /* shutdown our bulk read */ usb_kill_urb(port->read_urb); } -static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int count) +static int ir_write(struct usb_serial_port *port, + const unsigned char *buf, int count) { unsigned char *transfer_buffer; int result; @@ -338,7 +361,7 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int dbg("%s - port = %d, count = %d", __func__, port->number, count); if (!port->tty) { - dev_err (&port->dev, "%s - no tty???\n", __func__); + dev_err(&port->dev, "%s - no tty???\n", __func__); return 0; } @@ -359,7 +382,7 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int /* * The first byte of the packet we send to the device contains an - * inband header which indicates an additional number of BOFs and + * inbound header which indicates an additional number of BOFs and * a baud rate change. * * See section 5.4.2.2 of the USB IrDA spec. @@ -367,9 +390,9 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int *transfer_buffer = ir_xbof | ir_baud; ++transfer_buffer; - memcpy (transfer_buffer, buf, transfer_size); + memcpy(transfer_buffer, buf, transfer_size); - usb_fill_bulk_urb ( + usb_fill_bulk_urb( port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, @@ -381,17 +404,19 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int port->write_urb->transfer_flags = URB_ZERO_PACKET; - result = usb_submit_urb (port->write_urb, GFP_ATOMIC); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) { port->write_urb_busy = 0; - dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); } else result = transfer_size; return result; } -static void ir_write_bulk_callback (struct urb *urb) +static void ir_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; int status = urb->status; @@ -405,7 +430,7 @@ static void ir_write_bulk_callback (struct urb *urb) return; } - usb_serial_debug_data ( + usb_serial_debug_data( debug, &port->dev, __func__, @@ -415,7 +440,7 @@ static void ir_write_bulk_callback (struct urb *urb) usb_serial_port_softint(port); } -static void ir_read_bulk_callback (struct urb *urb) +static void ir_read_bulk_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct tty_struct *tty; @@ -431,68 +456,69 @@ static void ir_read_bulk_callback (struct urb *urb) } switch (status) { - case 0: /* Successful */ - - /* - * The first byte of the packet we get from the device - * contains a busy indicator and baud rate change. - * See section 5.4.1.2 of the USB IrDA spec. - */ - if ((*data & 0x0f) > 0) - ir_baud = *data & 0x0f; - - usb_serial_debug_data ( - debug, - &port->dev, - __func__, - urb->actual_length, - data); - - tty = port->tty; - - if (tty_buffer_request_room(tty, urb->actual_length - 1)) { - tty_insert_flip_string(tty, data+1, urb->actual_length - 1); - tty_flip_buffer_push(tty); - } - - /* - * No break here. - * We want to resubmit the urb so we can read - * again. - */ - - case -EPROTO: /* taking inspiration from pl2303.c */ - - /* Continue trying to always read */ - usb_fill_bulk_urb ( - port->read_urb, - port->serial->dev, - usb_rcvbulkpipe(port->serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - ir_read_bulk_callback, - port); - - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", - __func__, result); - - break ; - - default: - dbg("%s - nonzero read bulk status received: %d", - __func__, - status); - break ; + case 0: /* Successful */ + + /* + * The first byte of the packet we get from the device + * contains a busy indicator and baud rate change. + * See section 5.4.1.2 of the USB IrDA spec. + */ + if ((*data & 0x0f) > 0) + ir_baud = *data & 0x0f; + + usb_serial_debug_data( + debug, + &port->dev, + __func__, + urb->actual_length, + data); + + tty = port->tty; + + if (tty_buffer_request_room(tty, urb->actual_length - 1)) { + tty_insert_flip_string(tty, data + 1, + urb->actual_length - 1); + tty_flip_buffer_push(tty); + } + /* + * No break here. + * We want to resubmit the urb so we can read + * again. + */ + + case -EPROTO: /* taking inspiration from pl2303.c */ + + /* Continue trying to always read */ + usb_fill_bulk_urb( + port->read_urb, + port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + ir_read_bulk_callback, + port); + + result = usb_submit_urb(port->read_urb, GFP_ATOMIC); + if (result) + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __func__, result); + break; + + default: + dbg("%s - nonzero read bulk status received: %d", + __func__, + status); + break; } return; } -static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_termios) +static void ir_set_termios(struct usb_serial_port *port, + struct ktermios *old_termios) { unsigned char *transfer_buffer; int result; @@ -510,19 +536,36 @@ static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_t */ switch (baud) { - case 2400: ir_baud = SPEED_2400; break; - case 9600: ir_baud = SPEED_9600; break; - case 19200: ir_baud = SPEED_19200; break; - case 38400: ir_baud = SPEED_38400; break; - case 57600: ir_baud = SPEED_57600; break; - case 115200: ir_baud = SPEED_115200; break; - case 576000: ir_baud = SPEED_576000; break; - case 1152000: ir_baud = SPEED_1152000; break; - case 4000000: ir_baud = SPEED_4000000; break; - break; - default: - ir_baud = SPEED_9600; - baud = 9600; + case 2400: + ir_baud = USB_IRDA_BR_2400; + break; + case 9600: + ir_baud = USB_IRDA_BR_9600; + break; + case 19200: + ir_baud = USB_IRDA_BR_19200; + break; + case 38400: + ir_baud = USB_IRDA_BR_38400; + break; + case 57600: + ir_baud = USB_IRDA_BR_57600; + break; + case 115200: + ir_baud = USB_IRDA_BR_115200; + break; + case 576000: + ir_baud = USB_IRDA_BR_576000; + break; + case 1152000: + ir_baud = USB_IRDA_BR_1152000; + break; + case 4000000: + ir_baud = USB_IRDA_BR_4000000; + break; + default: + ir_baud = USB_IRDA_BR_9600; + baud = 9600; } if (xbof == -1) @@ -538,10 +581,11 @@ static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_t transfer_buffer = port->write_urb->transfer_buffer; *transfer_buffer = ir_xbof | ir_baud; - usb_fill_bulk_urb ( + usb_fill_bulk_urb( port->write_urb, port->serial->dev, - usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress), + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), port->write_urb->transfer_buffer, 1, ir_write_bulk_callback, @@ -549,38 +593,44 @@ static void ir_set_termios (struct usb_serial_port *port, struct ktermios *old_t port->write_urb->transfer_flags = URB_ZERO_PACKET; - result = usb_submit_urb (port->write_urb, GFP_KERNEL); + result = usb_submit_urb(port->write_urb, GFP_KERNEL); if (result) - dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __func__, result); + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __func__, result); /* Only speed changes are supported */ tty_termios_copy_hw(port->tty->termios, old_termios); tty_encode_baud_rate(port->tty, baud, baud); } - -static int __init ir_init (void) +static int __init ir_init(void) { int retval; + retval = usb_serial_register(&ir_device); if (retval) goto failed_usb_serial_register; + retval = usb_register(&ir_driver); - if (retval) + if (retval) goto failed_usb_register; + info(DRIVER_DESC " " DRIVER_VERSION); + return 0; + failed_usb_register: usb_serial_deregister(&ir_device); + failed_usb_serial_register: return retval; } - -static void __exit ir_exit (void) +static void __exit ir_exit(void) { - usb_deregister (&ir_driver); - usb_serial_deregister (&ir_device); + usb_deregister(&ir_driver); + usb_serial_deregister(&ir_device); } diff --git a/drivers/usb/serial/keyspan_pda.S b/drivers/usb/serial/keyspan_pda.S index 418fe69aa5e0..006154b82eeb 100644 --- a/drivers/usb/serial/keyspan_pda.S +++ b/drivers/usb/serial/keyspan_pda.S @@ -1,4 +1,4 @@ -/* $Id: loop.s,v 1.23 2000/03/20 09:49:06 warner Exp $ +/* * * Firmware for the Keyspan PDA Serial Adapter, a USB serial port based on * the EzUSB microcontroller. diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index f328948d74e3..79787eda9524 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -236,7 +236,7 @@ static int klsi_105_get_line_state(struct usb_serial_port *port, if (rc < 0) err("Reading line status failed (error = %d)", rc); else { - status = le16_to_cpu(get_unaligned((__le16 *)status_buf)); + status = get_unaligned_le16(status_buf); info("%s - read status %x %x", __func__, status_buf[0], status_buf[1]); diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 43cfde83a93b..25cecf81c7a8 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -173,6 +173,7 @@ static int option_send_setup(struct usb_serial_port *port); #define DELL_VENDOR_ID 0x413C #define KYOCERA_VENDOR_ID 0x0c88 +#define KYOCERA_PRODUCT_KPC650 0x17da #define KYOCERA_PRODUCT_KPC680 0x180a #define ANYDATA_VENDOR_ID 0x16d5 @@ -305,6 +306,7 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(ONDA_VENDOR_ID, ONDA_PRODUCT_ET502HS) }, { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) }, { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) }, + { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) }, { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) }, { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */ diff --git a/drivers/usb/serial/ti_fw_3410.h b/drivers/usb/serial/ti_fw_3410.h index 71e88579dfe0..712e4df5d599 100644 --- a/drivers/usb/serial/ti_fw_3410.h +++ b/drivers/usb/serial/ti_fw_3410.h @@ -882,4 +882,8 @@ static unsigned char ti_fw_3410[] = { 0x00,0x00, }; +static struct firmware fw_3410 = { + sizeof(ti_fw_3410), + ti_fw_3410 +}; #endif /* ifndef _TI_FW_3410_H_ */ diff --git a/drivers/usb/serial/ti_fw_5052.h b/drivers/usb/serial/ti_fw_5052.h index 6ccf40a09798..2194121b69e4 100644 --- a/drivers/usb/serial/ti_fw_5052.h +++ b/drivers/usb/serial/ti_fw_5052.h @@ -882,4 +882,9 @@ static unsigned char ti_fw_5052[] = { 0x00, }; +static struct firmware fw_5052 = { + sizeof(ti_fw_5052), + ti_fw_5052 +}; + #endif /* ifndef _TI_FW_5052_H_ */ diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index a1c8aef01417..a63e21577008 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -70,6 +70,7 @@ #include <linux/kernel.h> #include <linux/errno.h> +#include <linux/firmware.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/tty.h> @@ -86,9 +87,14 @@ #include <linux/usb/serial.h> #include "ti_usb_3410_5052.h" + +#ifdef CONFIG_USB_SERIAL_TI_FIRMWARE +/* Keep compatibility option for a while so we don't break systems + as we kick the firmware out into user space. In time this will + go away */ #include "ti_fw_3410.h" /* firmware image for 3410 */ #include "ti_fw_5052.h" /* firmware image for 5052 */ - +#endif /* Defines */ @@ -194,8 +200,7 @@ static int ti_command_in_sync(struct ti_device *tdev, __u8 command, static int ti_write_byte(struct ti_device *tdev, unsigned long addr, __u8 mask, __u8 byte); -static int ti_download_firmware(struct ti_device *tdev, - unsigned char *firmware, unsigned int firmware_size); +static int ti_download_firmware(struct ti_device *tdev, int type); /* circular buffer */ static struct circ_buf *ti_buf_alloc(void); @@ -429,13 +434,10 @@ static int ti_startup(struct usb_serial *serial) /* if we have only 1 configuration, download firmware */ if (dev->descriptor.bNumConfigurations == 1) { - if (tdev->td_is_3410) - status = ti_download_firmware(tdev, ti_fw_3410, - sizeof(ti_fw_3410)); + status = ti_download_firmware(tdev, 3410); else - status = ti_download_firmware(tdev, ti_fw_5052, - sizeof(ti_fw_5052)); + status = ti_download_firmware(tdev, 5052); if (status) goto free_tdev; @@ -1656,50 +1658,82 @@ static int ti_write_byte(struct ti_device *tdev, unsigned long addr, return status; } - -static int ti_download_firmware(struct ti_device *tdev, - unsigned char *firmware, unsigned int firmware_size) +static int ti_do_download(struct usb_device *dev, int pipe, + u8 *buffer, int size) { - int status = 0; - int buffer_size; int pos; - int len; + u8 cs = 0; int done; - __u8 cs = 0; - __u8 *buffer; - struct usb_device *dev = tdev->td_serial->dev; struct ti_firmware_header *header; - unsigned int pipe = usb_sndbulkpipe(dev, - tdev->td_serial->port[0]->bulk_out_endpointAddress); - - - buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); - buffer = kmalloc(buffer_size, GFP_KERNEL); - if (!buffer) { - dev_err(&dev->dev, "%s - out of memory\n", __func__); - return -ENOMEM; - } - - memcpy(buffer, firmware, firmware_size); - memset(buffer+firmware_size, 0xff, buffer_size-firmware_size); + int status; + int len; - for(pos = sizeof(struct ti_firmware_header); pos < buffer_size; pos++) + for(pos = sizeof(struct ti_firmware_header); pos < size; pos++) cs = (__u8)(cs + buffer[pos]); header = (struct ti_firmware_header *)buffer; - header->wLength = cpu_to_le16((__u16)(buffer_size - sizeof(struct ti_firmware_header))); + header->wLength = cpu_to_le16((__u16)(size + - sizeof(struct ti_firmware_header))); header->bCheckSum = cs; dbg("%s - downloading firmware", __func__); - for (pos = 0; pos < buffer_size; pos += done) { - len = min(buffer_size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); - status = usb_bulk_msg(dev, pipe, buffer+pos, len, &done, 1000); + for (pos = 0; pos < size; pos += done) { + len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); + status = usb_bulk_msg(dev, pipe, buffer + pos, len, + &done, 1000); if (status) break; } + return status; +} + + +static int ti_download_firmware(struct ti_device *tdev, int type) +{ + int status = -ENOMEM; + int buffer_size; + __u8 *buffer; + struct usb_device *dev = tdev->td_serial->dev; + unsigned int pipe = usb_sndbulkpipe(dev, + tdev->td_serial->port[0]->bulk_out_endpointAddress); + const struct firmware *fw_p; - kfree(buffer); +#ifdef CONFIG_USB_SERIAL_TI_FIRMWARE + switch (type) { + case 3410: + fw_p = &fw_3410; + break; + case 5052: + fw_p = &fw_5052; + break; + default: + return -EINVAL; + } +#else + char buf[32]; + sprintf(buf, "ti_usb-%d.bin", type); + + if (request_firmware(&fw_p, buf, &dev->dev)) { + dev_err(&dev->dev, "%s - firmware not found\n", __func__); + return -ENOENT; + } + if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { + dev_err(&dev->dev, "%s - firmware too large\n", __func__); + return -ENOENT; + } +#endif + buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (buffer) { + memcpy(buffer, fw_p->data, fw_p->size); + memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); + ti_do_download(dev, pipe, buffer, fw_p->size); + kfree(buffer); + } +#ifdef CONFIG_USB_SERIAL_TI_FIRMWARE + release_firmware(fw_p); +#endif if (status) { dev_err(&dev->dev, "%s - error downloading firmware, %d\n", __func__, status); return status; diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 0cb0d77dc429..3bcf33466587 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -505,7 +505,7 @@ static void port_release(struct device *dev) { struct usb_serial_port *port = to_usb_serial_port(dev); - dbg ("%s - %s", __func__, dev->bus_id); + dbg ("%s - %s", __func__, dev_name(dev)); port_free(port); } @@ -625,7 +625,7 @@ int usb_serial_probe(struct usb_interface *interface, struct usb_endpoint_descriptor *bulk_out_endpoint[MAX_NUM_PORTS]; struct usb_serial_driver *type = NULL; int retval; - int minor; + unsigned int minor; int buffer_size; int i; int num_interrupt_in = 0; @@ -938,8 +938,8 @@ int usb_serial_probe(struct usb_interface *interface, port->dev.bus = &usb_serial_bus_type; port->dev.release = &port_release; - snprintf (&port->dev.bus_id[0], sizeof(port->dev.bus_id), "ttyUSB%d", port->number); - dbg ("%s - registering %s", __func__, port->dev.bus_id); + dev_set_name(&port->dev, "ttyUSB%d", port->number); + dbg ("%s - registering %s", __func__, dev_name(&port->dev)); retval = device_register(&port->dev); if (retval) dev_err(&port->dev, "Error registering port device, " diff --git a/drivers/usb/serial/xircom_pgs.S b/drivers/usb/serial/xircom_pgs.S index 05d99dd63776..fa7ccaa6b396 100644 --- a/drivers/usb/serial/xircom_pgs.S +++ b/drivers/usb/serial/xircom_pgs.S @@ -1,4 +1,4 @@ -/* $Id: loop.s,v 1.23 2000/03/20 09:49:06 warner Exp $ +/* * * Firmware for the Keyspan PDA Serial Adapter, a USB serial port based on * the EzUSB microcontroller. diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c index 579e9f52053a..17f1ae232919 100644 --- a/drivers/usb/storage/datafab.c +++ b/drivers/usb/storage/datafab.c @@ -1,7 +1,5 @@ /* Driver for Datafab USB Compact Flash reader * - * $Id: datafab.c,v 1.7 2002/02/25 00:40:13 mdharm Exp $ - * * datafab driver v0.1: * * First release diff --git a/drivers/usb/storage/debug.c b/drivers/usb/storage/debug.c index 01e430654a13..a2b5526c9fa0 100644 --- a/drivers/usb/storage/debug.c +++ b/drivers/usb/storage/debug.c @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Debugging Functions Source Code File * - * $Id: debug.c,v 1.9 2002/04/22 03:39:43 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/debug.h b/drivers/usb/storage/debug.h index 77e244a8c376..dbb985d52423 100644 --- a/drivers/usb/storage/debug.h +++ b/drivers/usb/storage/debug.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Debugging Functions Header File * - * $Id: debug.h,v 1.6 2001/01/12 23:51:04 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/dpcm.c b/drivers/usb/storage/dpcm.c index 9a410b5a6e5b..939923471af4 100644 --- a/drivers/usb/storage/dpcm.c +++ b/drivers/usb/storage/dpcm.c @@ -1,7 +1,5 @@ /* Driver for Microtech DPCM-USB CompactFlash/SmartMedia reader * - * $Id: dpcm.c,v 1.4 2001/06/11 02:54:25 mdharm Exp $ - * * DPCM driver v0.1: * * First release diff --git a/drivers/usb/storage/dpcm.h b/drivers/usb/storage/dpcm.h index 81b464cfcc1e..e7b7b0f120d7 100644 --- a/drivers/usb/storage/dpcm.h +++ b/drivers/usb/storage/dpcm.h @@ -1,7 +1,5 @@ /* Driver for Microtech DPCM-USB CompactFlash/SmartMedia reader * - * $Id: dpcm.h,v 1.2 2000/08/25 00:13:51 mdharm Exp $ - * * DPCM driver v0.1: * * First release diff --git a/drivers/usb/storage/freecom.c b/drivers/usb/storage/freecom.c index f5a4e8d6a3b1..7a4d45677227 100644 --- a/drivers/usb/storage/freecom.c +++ b/drivers/usb/storage/freecom.c @@ -1,7 +1,5 @@ /* Driver for Freecom USB/IDE adaptor * - * $Id: freecom.c,v 1.22 2002/04/22 03:39:43 mdharm Exp $ - * * Freecom v0.1: * * First release diff --git a/drivers/usb/storage/freecom.h b/drivers/usb/storage/freecom.h index 1b012d62d0a8..20d0fe6ba0c8 100644 --- a/drivers/usb/storage/freecom.h +++ b/drivers/usb/storage/freecom.h @@ -1,7 +1,5 @@ /* Driver for Freecom USB/IDE adaptor * - * $Id: freecom.h,v 1.4 2000/08/29 14:49:15 dlbrown Exp $ - * * Freecom v0.1: * * First release diff --git a/drivers/usb/storage/initializers.c b/drivers/usb/storage/initializers.c index 187dd1e01093..4995bb595aef 100644 --- a/drivers/usb/storage/initializers.c +++ b/drivers/usb/storage/initializers.c @@ -1,7 +1,5 @@ /* Special Initializers for certain USB Mass Storage devices * - * $Id: initializers.c,v 1.2 2000/09/06 22:35:57 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/initializers.h b/drivers/usb/storage/initializers.h index ad3ffd4236c2..529327fbb06b 100644 --- a/drivers/usb/storage/initializers.h +++ b/drivers/usb/storage/initializers.h @@ -1,7 +1,5 @@ /* Header file for Special Initializers for certain USB Mass Storage devices * - * $Id: initializers.h,v 1.1 2000/08/29 23:07:02 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c index 3addcd8f827b..383abf2516a5 100644 --- a/drivers/usb/storage/isd200.c +++ b/drivers/usb/storage/isd200.c @@ -1,7 +1,5 @@ /* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC * - * $Id: isd200.c,v 1.16 2002/04/22 03:39:43 mdharm Exp $ - * * Current development and maintenance: * (C) 2001-2002 Björn Stenberg (bjorn@haxx.se) * @@ -586,7 +584,7 @@ static void isd200_invoke_transport( struct us_data *us, /* if the command gets aborted by the higher layers, we need to * short-circuit all other processing */ - if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { + if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { US_DEBUGP("-- command was aborted\n"); goto Handle_Abort; } @@ -633,7 +631,7 @@ static void isd200_invoke_transport( struct us_data *us, if (need_auto_sense) { result = isd200_read_regs(us); - if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { + if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { US_DEBUGP("-- auto-sense aborted\n"); goto Handle_Abort; } @@ -663,7 +661,7 @@ static void isd200_invoke_transport( struct us_data *us, srb->result = DID_ABORT << 16; /* permit the reset transfer to take place */ - clear_bit(US_FLIDX_ABORTING, &us->flags); + clear_bit(US_FLIDX_ABORTING, &us->dflags); /* Need reset here */ } diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c index 61097cbb1585..df67f13c9e73 100644 --- a/drivers/usb/storage/jumpshot.c +++ b/drivers/usb/storage/jumpshot.c @@ -1,7 +1,5 @@ /* Driver for Lexar "Jumpshot" Compact Flash reader * - * $Id: jumpshot.c,v 1.7 2002/02/25 00:40:13 mdharm Exp $ - * * jumpshot driver v0.1: * * First release diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c index b9b8ede61fb3..3b3357e20ea7 100644 --- a/drivers/usb/storage/protocol.c +++ b/drivers/usb/storage/protocol.c @@ -1,7 +1,5 @@ /* Driver for USB Mass Storage compliant devices * - * $Id: protocol.c,v 1.14 2002/04/22 03:39:43 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/protocol.h b/drivers/usb/storage/protocol.h index 8737a36891ca..487056ffb516 100644 --- a/drivers/usb/storage/protocol.h +++ b/drivers/usb/storage/protocol.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Protocol Functions Header File * - * $Id: protocol.h,v 1.4 2001/02/13 07:10:03 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 3fcde9f0fa5f..b4c9e0f18a82 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * SCSI layer glue code * - * $Id: scsiglue.c,v 1.26 2002/04/22 03:39:43 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * @@ -116,10 +114,10 @@ static int slave_configure(struct scsi_device *sdev) * while others have trouble with more than 64K. At this time we * are limiting both to 32K (64 sectores). */ - if (us->flags & (US_FL_MAX_SECTORS_64 | US_FL_MAX_SECTORS_MIN)) { + if (us->fflags & (US_FL_MAX_SECTORS_64 | US_FL_MAX_SECTORS_MIN)) { unsigned int max_sectors = 64; - if (us->flags & US_FL_MAX_SECTORS_MIN) + if (us->fflags & US_FL_MAX_SECTORS_MIN) max_sectors = PAGE_CACHE_SIZE >> 9; if (sdev->request_queue->max_sectors > max_sectors) blk_queue_max_sectors(sdev->request_queue, @@ -148,7 +146,7 @@ static int slave_configure(struct scsi_device *sdev) * majority of devices work fine, but a few still can't * handle it. The sd driver will simply assume those * devices are write-enabled. */ - if (us->flags & US_FL_NO_WP_DETECT) + if (us->fflags & US_FL_NO_WP_DETECT) sdev->skip_ms_page_3f = 1; /* A number of devices have problems with MODE SENSE for @@ -158,13 +156,13 @@ static int slave_configure(struct scsi_device *sdev) /* Some disks return the total number of blocks in response * to READ CAPACITY rather than the highest block number. * If this device makes that mistake, tell the sd driver. */ - if (us->flags & US_FL_FIX_CAPACITY) + if (us->fflags & US_FL_FIX_CAPACITY) sdev->fix_capacity = 1; /* A few disks have two indistinguishable version, one of * which reports the correct capacity and the other does not. * The sd driver has to guess which is the case. */ - if (us->flags & US_FL_CAPACITY_HEURISTICS) + if (us->fflags & US_FL_CAPACITY_HEURISTICS) sdev->guess_capacity = 1; /* Some devices report a SCSI revision level above 2 but are @@ -213,7 +211,7 @@ static int slave_configure(struct scsi_device *sdev) /* Some devices choke when they receive a PREVENT-ALLOW MEDIUM * REMOVAL command, so suppress those commands. */ - if (us->flags & US_FL_NOT_LOCKABLE) + if (us->fflags & US_FL_NOT_LOCKABLE) sdev->lockable = 0; /* this is to satisfy the compiler, tho I don't think the @@ -238,7 +236,7 @@ static int queuecommand(struct scsi_cmnd *srb, } /* fail the command if we are disconnecting */ - if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) { + if (test_bit(US_FLIDX_DISCONNECTING, &us->dflags)) { US_DEBUGP("Fail command during disconnect\n"); srb->result = DID_NO_CONNECT << 16; done(srb); @@ -248,7 +246,7 @@ static int queuecommand(struct scsi_cmnd *srb, /* enqueue the command and wake up the control thread */ srb->scsi_done = done; us->srb = srb; - up(&(us->sema)); + complete(&us->cmnd_ready); return 0; } @@ -280,9 +278,9 @@ static int command_abort(struct scsi_cmnd *srb) * with the reset). Note that we must retain the host lock while * calling usb_stor_stop_transport(); otherwise it might interfere * with an auto-reset that begins as soon as we release the lock. */ - set_bit(US_FLIDX_TIMED_OUT, &us->flags); - if (!test_bit(US_FLIDX_RESETTING, &us->flags)) { - set_bit(US_FLIDX_ABORTING, &us->flags); + set_bit(US_FLIDX_TIMED_OUT, &us->dflags); + if (!test_bit(US_FLIDX_RESETTING, &us->dflags)) { + set_bit(US_FLIDX_ABORTING, &us->dflags); usb_stor_stop_transport(us); } scsi_unlock(us_to_host(us)); @@ -329,7 +327,7 @@ void usb_stor_report_device_reset(struct us_data *us) struct Scsi_Host *host = us_to_host(us); scsi_report_device_reset(host, 0, 0); - if (us->flags & US_FL_SCM_MULT_TARG) { + if (us->fflags & US_FL_SCM_MULT_TARG) { for (i = 1; i < host->max_id; ++i) scsi_report_device_reset(host, 0, i); } @@ -400,7 +398,7 @@ static int proc_info (struct Scsi_Host *host, char *buffer, pos += sprintf(pos, " Quirks:"); #define US_FLAG(name, value) \ - if (us->flags & value) pos += sprintf(pos, " " #name); + if (us->fflags & value) pos += sprintf(pos, " " #name); US_DO_ALL_FLAGS #undef US_FLAG diff --git a/drivers/usb/storage/scsiglue.h b/drivers/usb/storage/scsiglue.h index 737e4fa6045f..ffa1cca93d2c 100644 --- a/drivers/usb/storage/scsiglue.h +++ b/drivers/usb/storage/scsiglue.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * SCSI Connecting Glue Header File * - * $Id: scsiglue.h,v 1.4 2000/08/25 00:13:51 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c index 8972b17da843..c5a54b872c24 100644 --- a/drivers/usb/storage/sddr09.c +++ b/drivers/usb/storage/sddr09.c @@ -1,6 +1,5 @@ /* Driver for SanDisk SDDR-09 SmartMedia reader * - * $Id: sddr09.c,v 1.24 2002/04/22 03:39:43 mdharm Exp $ * (c) 2000, 2001 Robert Baruch (autophile@starband.net) * (c) 2002 Andries Brouwer (aeb@cwi.nl) * Developed with the assistance of: diff --git a/drivers/usb/storage/sddr09.h b/drivers/usb/storage/sddr09.h index c03089a9ec38..e50033ad7b19 100644 --- a/drivers/usb/storage/sddr09.h +++ b/drivers/usb/storage/sddr09.h @@ -1,8 +1,6 @@ /* Driver for SanDisk SDDR-09 SmartMedia reader * Header File * - * $Id: sddr09.h,v 1.5 2000/08/25 00:13:51 mdharm Exp $ - * * Current development and maintenance by: * (c) 2000 Robert Baruch (autophile@dol.net) * (c) 2002 Andries Brouwer (aeb@cwi.nl) diff --git a/drivers/usb/storage/sddr55.c b/drivers/usb/storage/sddr55.c index 6d14327c921d..0d8df7577899 100644 --- a/drivers/usb/storage/sddr55.c +++ b/drivers/usb/storage/sddr55.c @@ -1,7 +1,5 @@ /* Driver for SanDisk SDDR-55 SmartMedia reader * - * $Id:$ - * * SDDR55 driver v0.1: * * First release diff --git a/drivers/usb/storage/sddr55.h b/drivers/usb/storage/sddr55.h index d6bd32f6c9f3..a815a0470c84 100644 --- a/drivers/usb/storage/sddr55.h +++ b/drivers/usb/storage/sddr55.h @@ -1,8 +1,6 @@ /* Driver for SanDisk SDDR-55 SmartMedia reader * Header File * - * $Id:$ - * * Current development and maintenance by: * (c) 2002 Simon Munton * diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c index 570c1250f6f3..ae6d64810d2a 100644 --- a/drivers/usb/storage/shuttle_usbat.c +++ b/drivers/usb/storage/shuttle_usbat.c @@ -1,7 +1,5 @@ /* Driver for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable * - * $Id: shuttle_usbat.c,v 1.17 2002/04/22 03:39:43 mdharm Exp $ - * * Current development and maintenance by: * (c) 2000, 2001 Robert Baruch (autophile@starband.net) * (c) 2004, 2005 Daniel Drake <dsd@gentoo.org> diff --git a/drivers/usb/storage/shuttle_usbat.h b/drivers/usb/storage/shuttle_usbat.h index 3ddf143a1dec..d8bfc43e9044 100644 --- a/drivers/usb/storage/shuttle_usbat.h +++ b/drivers/usb/storage/shuttle_usbat.h @@ -1,8 +1,6 @@ /* Driver for SCM Microsystems USB-ATAPI cable * Header File * - * $Id: shuttle_usbat.h,v 1.5 2000/09/17 14:44:52 groovyjava Exp $ - * * Current development and maintenance by: * (c) 2000 Robert Baruch (autophile@dol.net) * (c) 2004, 2005 Daniel Drake <dsd@gentoo.org> diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index 6610d2dd1e7f..fcbbfdb7b2b0 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -1,7 +1,5 @@ /* Driver for USB Mass Storage compliant devices * - * $Id: transport.c,v 1.47 2002/04/22 03:39:43 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * @@ -75,14 +73,14 @@ * by a separate code path.) * * The abort function (usb_storage_command_abort() in scsiglue.c) first - * sets the machine state and the ABORTING bit in us->flags to prevent + * sets the machine state and the ABORTING bit in us->dflags to prevent * new URBs from being submitted. It then calls usb_stor_stop_transport() - * below, which atomically tests-and-clears the URB_ACTIVE bit in us->flags + * below, which atomically tests-and-clears the URB_ACTIVE bit in us->dflags * to see if the current_urb needs to be stopped. Likewise, the SG_ACTIVE * bit is tested to see if the current_sg scatter-gather request needs to be * stopped. The timeout callback routine does much the same thing. * - * When a disconnect occurs, the DISCONNECTING bit in us->flags is set to + * When a disconnect occurs, the DISCONNECTING bit in us->dflags is set to * prevent new URBs from being submitted, and usb_stor_stop_transport() is * called to stop any ongoing requests. * @@ -127,8 +125,8 @@ static int usb_stor_msg_common(struct us_data *us, int timeout) long timeleft; int status; - /* don't submit URBs during abort/disconnect processing */ - if (us->flags & ABORTING_OR_DISCONNECTING) + /* don't submit URBs during abort processing */ + if (test_bit(US_FLIDX_ABORTING, &us->dflags)) return -EIO; /* set up data structures for the wakeup system */ @@ -159,13 +157,13 @@ static int usb_stor_msg_common(struct us_data *us, int timeout) /* since the URB has been submitted successfully, it's now okay * to cancel it */ - set_bit(US_FLIDX_URB_ACTIVE, &us->flags); + set_bit(US_FLIDX_URB_ACTIVE, &us->dflags); - /* did an abort/disconnect occur during the submission? */ - if (us->flags & ABORTING_OR_DISCONNECTING) { + /* did an abort occur during the submission? */ + if (test_bit(US_FLIDX_ABORTING, &us->dflags)) { /* cancel the URB, if it hasn't been cancelled already */ - if (test_and_clear_bit(US_FLIDX_URB_ACTIVE, &us->flags)) { + if (test_and_clear_bit(US_FLIDX_URB_ACTIVE, &us->dflags)) { US_DEBUGP("-- cancelling URB\n"); usb_unlink_urb(us->current_urb); } @@ -175,7 +173,7 @@ static int usb_stor_msg_common(struct us_data *us, int timeout) timeleft = wait_for_completion_interruptible_timeout( &urb_done, timeout ? : MAX_SCHEDULE_TIMEOUT); - clear_bit(US_FLIDX_URB_ACTIVE, &us->flags); + clear_bit(US_FLIDX_URB_ACTIVE, &us->dflags); if (timeleft <= 0) { US_DEBUGP("%s -- cancelling URB\n", @@ -419,8 +417,8 @@ static int usb_stor_bulk_transfer_sglist(struct us_data *us, unsigned int pipe, { int result; - /* don't submit s-g requests during abort/disconnect processing */ - if (us->flags & ABORTING_OR_DISCONNECTING) + /* don't submit s-g requests during abort processing */ + if (test_bit(US_FLIDX_ABORTING, &us->dflags)) return USB_STOR_XFER_ERROR; /* initialize the scatter-gather request block */ @@ -435,13 +433,13 @@ static int usb_stor_bulk_transfer_sglist(struct us_data *us, unsigned int pipe, /* since the block has been initialized successfully, it's now * okay to cancel it */ - set_bit(US_FLIDX_SG_ACTIVE, &us->flags); + set_bit(US_FLIDX_SG_ACTIVE, &us->dflags); - /* did an abort/disconnect occur during the submission? */ - if (us->flags & ABORTING_OR_DISCONNECTING) { + /* did an abort occur during the submission? */ + if (test_bit(US_FLIDX_ABORTING, &us->dflags)) { /* cancel the request, if it hasn't been cancelled already */ - if (test_and_clear_bit(US_FLIDX_SG_ACTIVE, &us->flags)) { + if (test_and_clear_bit(US_FLIDX_SG_ACTIVE, &us->dflags)) { US_DEBUGP("-- cancelling sg request\n"); usb_sg_cancel(&us->current_sg); } @@ -449,7 +447,7 @@ static int usb_stor_bulk_transfer_sglist(struct us_data *us, unsigned int pipe, /* wait for the completion of the transfer */ usb_sg_wait(&us->current_sg); - clear_bit(US_FLIDX_SG_ACTIVE, &us->flags); + clear_bit(US_FLIDX_SG_ACTIVE, &us->dflags); result = us->current_sg.status; if (act_len) @@ -530,7 +528,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) /* if the command gets aborted by the higher layers, we need to * short-circuit all other processing */ - if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { + if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { US_DEBUGP("-- command was aborted\n"); srb->result = DID_ABORT << 16; goto Handle_Errors; @@ -616,7 +614,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) /* let's clean up right away */ scsi_eh_restore_cmnd(srb, &ses); - if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { + if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { US_DEBUGP("-- auto-sense aborted\n"); srb->result = DID_ABORT << 16; goto Handle_Errors; @@ -629,7 +627,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) * auto-sense is perfectly valid */ srb->result = DID_ERROR << 16; - if (!(us->flags & US_FL_SCM_MULT_TARG)) + if (!(us->fflags & US_FL_SCM_MULT_TARG)) goto Handle_Errors; return; } @@ -679,8 +677,8 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) /* Set the RESETTING bit, and clear the ABORTING bit so that * the reset may proceed. */ scsi_lock(us_to_host(us)); - set_bit(US_FLIDX_RESETTING, &us->flags); - clear_bit(US_FLIDX_ABORTING, &us->flags); + set_bit(US_FLIDX_RESETTING, &us->dflags); + clear_bit(US_FLIDX_ABORTING, &us->dflags); scsi_unlock(us_to_host(us)); /* We must release the device lock because the pre_reset routine @@ -695,7 +693,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) scsi_unlock(us_to_host(us)); us->transport_reset(us); } - clear_bit(US_FLIDX_RESETTING, &us->flags); + clear_bit(US_FLIDX_RESETTING, &us->dflags); } /* Stop the current URB transfer */ @@ -707,13 +705,13 @@ void usb_stor_stop_transport(struct us_data *us) * let's wake it up. The test_and_clear_bit() call * guarantees that if a URB has just been submitted, * it won't be cancelled more than once. */ - if (test_and_clear_bit(US_FLIDX_URB_ACTIVE, &us->flags)) { + if (test_and_clear_bit(US_FLIDX_URB_ACTIVE, &us->dflags)) { US_DEBUGP("-- cancelling URB\n"); usb_unlink_urb(us->current_urb); } /* If we are waiting for a scatter-gather operation, cancel it. */ - if (test_and_clear_bit(US_FLIDX_SG_ACTIVE, &us->flags)) { + if (test_and_clear_bit(US_FLIDX_SG_ACTIVE, &us->dflags)) { US_DEBUGP("-- cancelling sg request\n"); usb_sg_cancel(&us->current_sg); } @@ -914,7 +912,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) unsigned int cbwlen = US_BULK_CB_WRAP_LEN; /* Take care of BULK32 devices; set extra byte to 0 */ - if ( unlikely(us->flags & US_FL_BULK32)) { + if (unlikely(us->fflags & US_FL_BULK32)) { cbwlen = 32; us->iobuf[31] = 0; } @@ -925,7 +923,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) bcb->Flags = srb->sc_data_direction == DMA_FROM_DEVICE ? 1 << 7 : 0; bcb->Tag = ++us->tag; bcb->Lun = srb->device->lun; - if (us->flags & US_FL_SCM_MULT_TARG) + if (us->fflags & US_FL_SCM_MULT_TARG) bcb->Lun |= srb->device->id << 4; bcb->Length = srb->cmd_len; @@ -951,7 +949,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) /* Some USB-IDE converter chips need a 100us delay between the * command phase and the data phase. Some devices need a little * more than that, probably because of clock rate inaccuracies. */ - if (unlikely(us->flags & US_FL_GO_SLOW)) + if (unlikely(us->fflags & US_FL_GO_SLOW)) udelay(125); if (transfer_length) { @@ -1010,7 +1008,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) US_DEBUGP("Bulk Status S 0x%x T 0x%x R %u Stat 0x%x\n", le32_to_cpu(bcs->Signature), bcs->Tag, residue, bcs->Status); - if (!(bcs->Tag == us->tag || (us->flags & US_FL_BULK_IGNORE_TAG)) || + if (!(bcs->Tag == us->tag || (us->fflags & US_FL_BULK_IGNORE_TAG)) || bcs->Status > US_BULK_STAT_PHASE) { US_DEBUGP("Bulk logical error\n"); return USB_STOR_TRANSPORT_ERROR; @@ -1035,7 +1033,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) /* try to compute the actual residue, based on how much data * was really transferred and what the device tells us */ if (residue) { - if (!(us->flags & US_FL_IGNORE_RESIDUE)) { + if (!(us->fflags & US_FL_IGNORE_RESIDUE)) { residue = min(residue, transfer_length); scsi_set_resid(srb, max(scsi_get_resid(srb), (int) residue)); @@ -1090,7 +1088,7 @@ static int usb_stor_reset_common(struct us_data *us, int result; int result2; - if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) { + if (test_bit(US_FLIDX_DISCONNECTING, &us->dflags)) { US_DEBUGP("No reset during disconnect\n"); return -EIO; } @@ -1103,12 +1101,12 @@ static int usb_stor_reset_common(struct us_data *us, return result; } - /* Give the device some time to recover from the reset, - * but don't delay disconnect processing. */ - wait_event_interruptible_timeout(us->delay_wait, - test_bit(US_FLIDX_DISCONNECTING, &us->flags), - HZ*6); - if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) { + /* Give the device some time to recover from the reset, + * but don't delay disconnect processing. */ + wait_event_interruptible_timeout(us->delay_wait, + test_bit(US_FLIDX_DISCONNECTING, &us->dflags), + HZ*6); + if (test_bit(US_FLIDX_DISCONNECTING, &us->dflags)) { US_DEBUGP("Reset interrupted by disconnect\n"); return -EIO; } @@ -1170,13 +1168,12 @@ int usb_stor_port_reset(struct us_data *us) US_DEBUGP("unable to lock device for reset: %d\n", result); else { /* Were we disconnected while waiting for the lock? */ - if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) { + if (test_bit(US_FLIDX_DISCONNECTING, &us->dflags)) { result = -EIO; US_DEBUGP("No reset during disconnect\n"); } else { - result = usb_reset_composite_device( - us->pusb_dev, us->pusb_intf); - US_DEBUGP("usb_reset_composite_device returns %d\n", + result = usb_reset_device(us->pusb_dev); + US_DEBUGP("usb_reset_device returns %d\n", result); } if (rc_lock) diff --git a/drivers/usb/storage/transport.h b/drivers/usb/storage/transport.h index ada7c2f43f84..e70b88182f0e 100644 --- a/drivers/usb/storage/transport.h +++ b/drivers/usb/storage/transport.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Transport Functions Header File * - * $Id: transport.h,v 1.18 2002/04/21 02:57:59 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 45fe3663fa7f..6b4435784113 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Unusual Devices File * - * $Id: unusual_devs.h,v 1.32 2002/02/25 02:41:24 mdharm Exp $ - * * Current development and maintenance by: * (c) 2000-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * @@ -402,11 +400,19 @@ UNUSUAL_DEV( 0x04a5, 0x3010, 0x0100, 0x0100, US_FL_IGNORE_RESIDUE ), #ifdef CONFIG_USB_STORAGE_CYPRESS_ATACB +/* CY7C68300 : support atacb */ UNUSUAL_DEV( 0x04b4, 0x6830, 0x0000, 0x9999, "Cypress", "Cypress AT2LP", US_SC_CYP_ATACB, US_PR_DEVICE, NULL, 0), + +/* CY7C68310 : support atacb and atacb2 */ +UNUSUAL_DEV( 0x04b4, 0x6831, 0x0000, 0x9999, + "Cypress", + "Cypress ISD-300LP", + US_SC_CYP_ATACB, US_PR_DEVICE, NULL, + 0), #endif /* Reported by Simon Levitt <simon@whattf.com> diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index e268aacb773a..bfea851be985 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -1,7 +1,5 @@ /* Driver for USB Mass Storage compliant devices * - * $Id: usb.c,v 1.75 2002/04/22 03:39:43 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2003 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * @@ -312,26 +310,27 @@ static int usb_stor_control_thread(void * __us) for(;;) { US_DEBUGP("*** thread sleeping.\n"); - if(down_interruptible(&us->sema)) + if (wait_for_completion_interruptible(&us->cmnd_ready)) break; - + US_DEBUGP("*** thread awakened.\n"); /* lock the device pointers */ mutex_lock(&(us->dev_mutex)); - /* if the device has disconnected, we are free to exit */ - if (test_bit(US_FLIDX_DISCONNECTING, &us->flags)) { - US_DEBUGP("-- exiting\n"); + /* lock access to the state */ + scsi_lock(host); + + /* When we are called with no command pending, we're done */ + if (us->srb == NULL) { + scsi_unlock(host); mutex_unlock(&us->dev_mutex); + US_DEBUGP("-- exiting\n"); break; } - /* lock access to the state */ - scsi_lock(host); - /* has the command timed out *already* ? */ - if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { + if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { us->srb->result = DID_ABORT << 16; goto SkipForAbort; } @@ -350,7 +349,7 @@ static int usb_stor_control_thread(void * __us) * the maximum known LUN */ else if (us->srb->device->id && - !(us->flags & US_FL_SCM_MULT_TARG)) { + !(us->fflags & US_FL_SCM_MULT_TARG)) { US_DEBUGP("Bad target number (%d:%d)\n", us->srb->device->id, us->srb->device->lun); us->srb->result = DID_BAD_TARGET << 16; @@ -365,7 +364,7 @@ static int usb_stor_control_thread(void * __us) /* Handle those devices which need us to fake * their inquiry data */ else if ((us->srb->cmnd[0] == INQUIRY) && - (us->flags & US_FL_FIX_INQUIRY)) { + (us->fflags & US_FL_FIX_INQUIRY)) { unsigned char data_ptr[36] = { 0x00, 0x80, 0x02, 0x02, 0x1F, 0x00, 0x00, 0x00}; @@ -384,12 +383,8 @@ static int usb_stor_control_thread(void * __us) /* lock access to the state */ scsi_lock(host); - /* did the command already complete because of a disconnect? */ - if (!us->srb) - ; /* nothing to do */ - /* indicate that the command is done */ - else if (us->srb->result != DID_ABORT << 16) { + if (us->srb->result != DID_ABORT << 16) { US_DEBUGP("scsi cmd done, result=0x%x\n", us->srb->result); us->srb->scsi_done(us->srb); @@ -403,12 +398,12 @@ SkipForAbort: * the TIMED_OUT flag, not srb->result == DID_ABORT, because * the timeout might have occurred after the command had * already completed with a different result code. */ - if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { + if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { complete(&(us->notify)); /* Allow USB transfers to resume */ - clear_bit(US_FLIDX_ABORTING, &us->flags); - clear_bit(US_FLIDX_TIMED_OUT, &us->flags); + clear_bit(US_FLIDX_ABORTING, &us->dflags); + clear_bit(US_FLIDX_TIMED_OUT, &us->dflags); } /* finished working on this command */ @@ -500,9 +495,9 @@ static int get_device_info(struct us_data *us, const struct usb_device_id *id) us->protocol = (unusual_dev->useTransport == US_PR_DEVICE) ? idesc->bInterfaceProtocol : unusual_dev->useTransport; - us->flags = USB_US_ORIG_FLAGS(id->driver_info); + us->fflags = USB_US_ORIG_FLAGS(id->driver_info); - if (us->flags & US_FL_IGNORE_DEVICE) { + if (us->fflags & US_FL_IGNORE_DEVICE) { printk(KERN_INFO USB_STORAGE "device ignored\n"); return -ENODEV; } @@ -512,7 +507,7 @@ static int get_device_info(struct us_data *us, const struct usb_device_id *id) * disable it if we're in full-speed */ if (dev->speed != USB_SPEED_HIGH) - us->flags &= ~US_FL_GO_SLOW; + us->fflags &= ~US_FL_GO_SLOW; /* Log a message if a non-generic unusual_dev entry contains an * unnecessary subclass or protocol override. This may stimulate @@ -533,7 +528,7 @@ static int get_device_info(struct us_data *us, const struct usb_device_id *id) if (unusual_dev->useTransport != US_PR_DEVICE && us->protocol == idesc->bInterfaceProtocol) msg += 2; - if (msg >= 0 && !(us->flags & US_FL_NEED_OVERRIDE)) + if (msg >= 0 && !(us->fflags & US_FL_NEED_OVERRIDE)) printk(KERN_NOTICE USB_STORAGE "This device " "(%04x,%04x,%04x S %02x P %02x)" " has %s in unusual_devs.h (kernel" @@ -663,7 +658,7 @@ static int get_transport(struct us_data *us) US_DEBUGP("Transport: %s\n", us->transport_name); /* fix for single-lun devices */ - if (us->flags & US_FL_SINGLE_LUN) + if (us->fflags & US_FL_SINGLE_LUN) us->max_lun = 0; return 0; } @@ -820,12 +815,11 @@ static void usb_stor_release_resources(struct us_data *us) US_DEBUGP("-- %s\n", __func__); /* Tell the control thread to exit. The SCSI host must - * already have been removed so it won't try to queue - * any more commands. + * already have been removed and the DISCONNECTING flag set + * so that we won't accept any more commands. */ US_DEBUGP("-- sending exit command to thread\n"); - set_bit(US_FLIDX_DISCONNECTING, &us->flags); - up(&us->sema); + complete(&us->cmnd_ready); if (us->ctl_thread) kthread_stop(us->ctl_thread); @@ -859,39 +853,36 @@ static void dissociate_dev(struct us_data *us) usb_set_intfdata(us->pusb_intf, NULL); } -/* First stage of disconnect processing: stop all commands and remove - * the host */ +/* First stage of disconnect processing: stop SCSI scanning, + * remove the host, and stop accepting new commands + */ static void quiesce_and_remove_host(struct us_data *us) { struct Scsi_Host *host = us_to_host(us); - /* Prevent new USB transfers, stop the current command, and - * interrupt a SCSI-scan or device-reset delay */ - scsi_lock(host); - set_bit(US_FLIDX_DISCONNECTING, &us->flags); - scsi_unlock(host); - usb_stor_stop_transport(us); - wake_up(&us->delay_wait); + /* If the device is really gone, cut short reset delays */ + if (us->pusb_dev->state == USB_STATE_NOTATTACHED) + set_bit(US_FLIDX_DISCONNECTING, &us->dflags); - /* queuecommand won't accept any new commands and the control - * thread won't execute a previously-queued command. If there - * is such a command pending, complete it with an error. */ - mutex_lock(&us->dev_mutex); - if (us->srb) { - us->srb->result = DID_NO_CONNECT << 16; - scsi_lock(host); - us->srb->scsi_done(us->srb); - us->srb = NULL; - complete(&us->notify); /* in case of an abort */ - scsi_unlock(host); - } - mutex_unlock(&us->dev_mutex); + /* Prevent SCSI-scanning (if it hasn't started yet) + * and wait for the SCSI-scanning thread to stop. + */ + set_bit(US_FLIDX_DONT_SCAN, &us->dflags); + wake_up(&us->delay_wait); + wait_for_completion(&us->scanning_done); - /* Now we own no commands so it's safe to remove the SCSI host */ + /* Removing the host will perform an orderly shutdown: caches + * synchronized, disks spun down, etc. + */ scsi_remove_host(host); - /* Wait for the SCSI-scanning thread to stop */ - wait_for_completion(&us->scanning_done); + /* Prevent any new commands from being accepted and cut short + * reset delays. + */ + scsi_lock(host); + set_bit(US_FLIDX_DISCONNECTING, &us->dflags); + scsi_unlock(host); + wake_up(&us->delay_wait); } /* Second stage of disconnect processing: deallocate all resources */ @@ -919,16 +910,16 @@ static int usb_stor_scan_thread(void * __us) printk(KERN_DEBUG "usb-storage: waiting for device " "to settle before scanning\n"); wait_event_freezable_timeout(us->delay_wait, - test_bit(US_FLIDX_DISCONNECTING, &us->flags), + test_bit(US_FLIDX_DONT_SCAN, &us->dflags), delay_use * HZ); } /* If the device is still connected, perform the scanning */ - if (!test_bit(US_FLIDX_DISCONNECTING, &us->flags)) { + if (!test_bit(US_FLIDX_DONT_SCAN, &us->dflags)) { /* For bulk-only devices, determine the max LUN value */ if (us->protocol == US_PR_BULK && - !(us->flags & US_FL_SINGLE_LUN)) { + !(us->fflags & US_FL_SINGLE_LUN)) { mutex_lock(&us->dev_mutex); us->max_lun = usb_stor_Bulk_max_lun(us); mutex_unlock(&us->dev_mutex); @@ -975,7 +966,7 @@ static int storage_probe(struct usb_interface *intf, us = host_to_us(host); memset(us, 0, sizeof(struct us_data)); mutex_init(&(us->dev_mutex)); - init_MUTEX_LOCKED(&(us->sema)); + init_completion(&us->cmnd_ready); init_completion(&(us->notify)); init_waitqueue_head(&us->delay_wait); init_completion(&us->scanning_done); @@ -1023,6 +1014,7 @@ static int storage_probe(struct usb_interface *intf, if (IS_ERR(th)) { printk(KERN_WARNING USB_STORAGE "Unable to start the device-scanning thread\n"); + complete(&us->scanning_done); quiesce_and_remove_host(us); result = PTR_ERR(th); goto BadDevice; @@ -1065,6 +1057,7 @@ static struct usb_driver usb_storage_driver = { .pre_reset = storage_pre_reset, .post_reset = storage_post_reset, .id_table = storage_usb_ids, + .soft_unbind = 1, }; static int __init usb_stor_init(void) diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h index 8d87503e2560..a4ad73bd832d 100644 --- a/drivers/usb/storage/usb.h +++ b/drivers/usb/storage/usb.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Main Header File * - * $Id: usb.h,v 1.21 2002/04/21 02:57:59 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * @@ -67,16 +65,14 @@ struct us_unusual_dev { }; -/* Dynamic flag definitions: used in set_bit() etc. */ -#define US_FLIDX_URB_ACTIVE 18 /* 0x00040000 current_urb is in use */ -#define US_FLIDX_SG_ACTIVE 19 /* 0x00080000 current_sg is in use */ -#define US_FLIDX_ABORTING 20 /* 0x00100000 abort is in progress */ -#define US_FLIDX_DISCONNECTING 21 /* 0x00200000 disconnect in progress */ -#define ABORTING_OR_DISCONNECTING ((1UL << US_FLIDX_ABORTING) | \ - (1UL << US_FLIDX_DISCONNECTING)) -#define US_FLIDX_RESETTING 22 /* 0x00400000 device reset in progress */ -#define US_FLIDX_TIMED_OUT 23 /* 0x00800000 SCSI midlayer timed out */ - +/* Dynamic bitflag definitions (us->dflags): used in set_bit() etc. */ +#define US_FLIDX_URB_ACTIVE 0 /* current_urb is in use */ +#define US_FLIDX_SG_ACTIVE 1 /* current_sg is in use */ +#define US_FLIDX_ABORTING 2 /* abort is in progress */ +#define US_FLIDX_DISCONNECTING 3 /* disconnect in progress */ +#define US_FLIDX_RESETTING 4 /* device reset in progress */ +#define US_FLIDX_TIMED_OUT 5 /* SCSI midlayer timed out */ +#define US_FLIDX_DONT_SCAN 6 /* don't scan (disconnect) */ #define USB_STOR_STRING_LEN 32 @@ -109,7 +105,8 @@ struct us_data { struct usb_device *pusb_dev; /* this usb_device */ struct usb_interface *pusb_intf; /* this interface */ struct us_unusual_dev *unusual_dev; /* device-filter entry */ - unsigned long flags; /* from filter initially */ + unsigned long fflags; /* fixed flags from filter */ + unsigned long dflags; /* dynamic atomic bitflags */ unsigned int send_bulk_pipe; /* cached pipe values */ unsigned int recv_bulk_pipe; unsigned int send_ctrl_pipe; @@ -147,7 +144,7 @@ struct us_data { struct task_struct *ctl_thread; /* the control thread */ /* mutual exclusion and synchronization structures */ - struct semaphore sema; /* to sleep thread on */ + struct completion cmnd_ready; /* to sleep thread on */ struct completion notify; /* thread begin/end */ wait_queue_head_t delay_wait; /* wait during scan, reset */ struct completion scanning_done; /* wait for scan thread */ diff --git a/drivers/usb/wusbcore/Kconfig b/drivers/usb/wusbcore/Kconfig new file mode 100644 index 000000000000..add077e5c5d0 --- /dev/null +++ b/drivers/usb/wusbcore/Kconfig @@ -0,0 +1,17 @@ +# +# Wireless USB Core configuration +# +config USB_WUSB + tristate "Enable Wireless USB extensions" + depends on USB + select UWB + select CRYPTO + select CRYPTO_BLKCIPHER + select CRYPTO_CBC + select CRYPTO_MANAGER + select CRYPTO_AES + help + Enable the host-side support for Wireless USB. + + To compile this support select Y (built in). It is safe to + select even if you don't have the hardware. diff --git a/drivers/usb/wusbcore/Makefile b/drivers/usb/wusbcore/Makefile new file mode 100644 index 000000000000..7a4d00724039 --- /dev/null +++ b/drivers/usb/wusbcore/Makefile @@ -0,0 +1,20 @@ +obj-$(CONFIG_USB_WUSB) += wusbcore.o wusb-cbaf.o +obj-$(CONFIG_USB_HWA_HCD) += wusb-wa.o + +wusbcore-objs := \ + crypto.o \ + devconnect.o \ + dev-sysfs.o \ + mmc.o \ + pal.o \ + rh.o \ + reservation.o \ + security.o \ + wusbhc.o + +wusb-cbaf-objs := cbaf.o + +wusb-wa-objs := wa-hc.o \ + wa-nep.o \ + wa-rpipe.o \ + wa-xfer.o diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c new file mode 100644 index 000000000000..1dab3936e7d2 --- /dev/null +++ b/drivers/usb/wusbcore/cbaf.c @@ -0,0 +1,620 @@ +/* + * Wireless USB - Cable Based Association + * + * + * Copyright (C) 2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * WUSB devices have to be paired (authenticated in WUSB lingo) so + * that they can connect to the system. + * + * One way of pairing is using CBA-Cable Based Authentication, devices + * that can connect via wired or wireless USB. First time you plug + * them with a cable, pairing is done between host and device and + * subsequent times, you can connect wirelessly without having to + * pair. That's the idea. + * + * This driver does nothing Earth shattering. It just provides an + * interface to chat with the wire-connected device so we can get a + * CDID (device ID) that might have been previously associated to a + * CHID (host ID) and to set up a new <CHID,CDID,CK> triplet + * (connection context), with the CK being the secret, or connection + * key. This is the pairing data. + * + * When a device with the CBA capability connects, the probe routine + * just creates a bunch of sysfs files that a user space enumeration + * manager uses to allow it to connect wirelessly to the system or not. + * + * The process goes like this: + * + * 1. device plugs, cbaf is loaded, notifications happen + * + * 2. the connection manager sees a device with CBAF capability (the + * wusb_{host_info,cdid,cc} files are in /sys/device/blah/OURDEVICE). + * + * 3. CM (connection manager) writes the CHID (host ID) and a host + * name into the wusb_host_info file. This gets sent to the device. + * + * 4. CM cats the wusb_cdid file; this asks the device if it has any + * CDID associated to the CHDI we just wrote before. If it does, it + * is printed, along with the device 'friendly name' and the band + * groups the device supports. + * + * 5. CM looks up its database + * + * 5.1 If it has a matching CHID,CDID entry, the device has been + * authorized before (paired). Now we can optionally ask the user + * if he wants to allow the device to connect. Then we generate a + * new CDID and CK, send it to the device and update the database + * (writing to the wusb_cc file so they are uploaded to the device). + * + * 5.2 If the CDID is zero (or we didn't find a matching CDID in our + * database), we assume the device is not known. We ask the user + * if s/he wants to allow the device to be connected wirelessly + * to the system. If nope, nothing else is done (FIXME: maybe + * send a zero CDID to clean up our CHID?). If yes, we generate + * random CDID and CKs (and write them to the wusb_cc file so + * they are uploaded to the device). + * + * 6. device is unplugged + * + * When the device tries to connect wirelessly, it will present it's + * CDID to the WUSB host controller with ID CHID, which will query the + * database. If found, the host will (with a 4way handshake) challenge + * the device to demonstrate it has the CK secret key (from our + * database) without actually exchanging it. Once satisfied, crypto + * keys are derived from the CK, the device is connected and all + * communication is crypted. + * + * + * NOTES ABOUT THE IMPLEMENTATION + * + * The descriptors sent back and forth use this horrible format from + * hell on which each field is actually a field ID, field length and + * then the field itself. How stupid can that get, taking into account + * the structures are defined by the spec?? oh well. + * + * + * FIXME: we don't provide a way to tell the device the pairing failed + * (ie: send a CC_DATA_FAIL). Should add some day. + */ +#include <linux/module.h> +#include <linux/ctype.h> +#include <linux/version.h> +#include <linux/usb.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/random.h> +#include <linux/mutex.h> +#include <linux/uwb.h> +#include <linux/usb/wusb.h> +#include <linux/usb/association.h> + +#undef D_LOCAL +#define D_LOCAL 6 +#include <linux/uwb/debug.h> + +/* An instance of a Cable-Based-Association-Framework device */ +struct cbaf { + struct usb_device *usb_dev; + struct usb_interface *usb_iface; + void *buffer; + size_t buffer_size; + + struct wusb_ckhdid chid;/* Host Information */ + char host_name[65]; /* max length: + Assoc Models Suplement 1.0[T4-7] */ + u16 host_band_groups; + + struct wusb_ckhdid cdid;/* Device Information */ + char device_name[65]; /* max length: + Assoc Models Suplement 1.0[T4-7] */ + u16 device_band_groups; + struct wusb_ckhdid ck; /* Connection Key */ +}; + +/* + * Verify that a CBAF USB-interface has what we need + * + * (like we care, we are going to fail the enumeration if not :) + * + * FIXME: ugly function, need to split + */ +static int cbaf_check(struct cbaf *cbaf) +{ + int result; + struct device *dev = &cbaf->usb_iface->dev; + struct wusb_cbaf_assoc_info *assoc_info; + struct wusb_cbaf_assoc_request *assoc_request; + size_t assoc_size; + void *itr, *top; + unsigned ar_index; + int ar_rhi_idx = -1, ar_assoc_idx = -1; + + result = usb_control_msg( + cbaf->usb_dev, usb_rcvctrlpipe(cbaf->usb_dev, 0), + CBAF_REQ_GET_ASSOCIATION_INFORMATION, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, + cbaf->buffer, cbaf->buffer_size, 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "cannot get available association types: %d\n", + result); + goto error_get_assoc_types; + } + assoc_info = cbaf->buffer; + if (result < sizeof(*assoc_info)) { + dev_err(dev, "not enough data to decode association info " + "header (%zu vs %zu bytes required)\n", + (size_t)result, sizeof(*assoc_info)); + goto error_bad_header; + } + assoc_size = le16_to_cpu(assoc_info->Length); + if (result < assoc_size) { + dev_err(dev, "not enough data to decode association info " + "(%zu vs %zu bytes required)\n", + (size_t)assoc_size, sizeof(*assoc_info)); + goto error_bad_data; + } + /* + * From now on, we just verify, but won't error out unless we + * don't find the AR_TYPE_WUSB_{RETRIEVE_HOST_INFO,ASSOCIATE} + * types. + */ + ar_index = 0; + itr = cbaf->buffer + sizeof(*assoc_info); + top = cbaf->buffer + assoc_size; + d_printf(1, dev, "Found %u association requests (%zu bytes)\n", + assoc_info->NumAssociationRequests, assoc_size); + while (itr < top) { + u16 ar_type, ar_subtype; + u32 ar_size; + const char *ar_name; + + assoc_request = itr; + if (top - itr < sizeof(*assoc_request)) { + dev_err(dev, "not enough data to decode associaton " + "request (%zu vs %zu bytes needed)\n", + top - itr, sizeof(*assoc_request)); + break; + } + ar_type = le16_to_cpu(assoc_request->AssociationTypeId); + ar_subtype = le16_to_cpu(assoc_request->AssociationSubTypeId); + ar_size = le32_to_cpu(assoc_request->AssociationTypeInfoSize); + switch (ar_type) { + case AR_TYPE_WUSB: + /* Verify we have what is mandated by AMS1.0 */ + switch (ar_subtype) { + case AR_TYPE_WUSB_RETRIEVE_HOST_INFO: + ar_name = "retrieve_host_info"; + ar_rhi_idx = ar_index; + break; + case AR_TYPE_WUSB_ASSOCIATE: + /* send assoc data */ + ar_name = "associate"; + ar_assoc_idx = ar_index; + break; + default: + ar_name = "unknown"; + }; + break; + default: + ar_name = "unknown"; + }; + d_printf(1, dev, "association request #%02u: 0x%04x/%04x " + "(%zu bytes): %s\n", + assoc_request->AssociationDataIndex, ar_type, + ar_subtype, (size_t)ar_size, ar_name); + + itr += sizeof(*assoc_request); + ar_index++; + } + if (ar_rhi_idx == -1) { + dev_err(dev, "Missing RETRIEVE_HOST_INFO association " + "request\n"); + goto error_bad_reqs; + } + if (ar_assoc_idx == -1) { + dev_err(dev, "Missing ASSOCIATE association request\n"); + goto error_bad_reqs; + } + return 0; + +error_bad_header: +error_bad_data: +error_bad_reqs: +error_get_assoc_types: + return -EINVAL; +} + +static const struct wusb_cbaf_host_info cbaf_host_info_defaults = { + .AssociationTypeId_hdr = WUSB_AR_AssociationTypeId, + .AssociationTypeId = cpu_to_le16(AR_TYPE_WUSB), + .AssociationSubTypeId_hdr = WUSB_AR_AssociationSubTypeId, + .AssociationSubTypeId = cpu_to_le16(AR_TYPE_WUSB_RETRIEVE_HOST_INFO), + .CHID_hdr = WUSB_AR_CHID, + .LangID_hdr = WUSB_AR_LangID, + .HostFriendlyName_hdr = WUSB_AR_HostFriendlyName, +}; + +/* Send WUSB host information (CHID and name) to a CBAF device */ +static int cbaf_send_host_info(struct cbaf *cbaf) +{ + struct wusb_cbaf_host_info *hi; + size_t hi_size; + + hi = cbaf->buffer; + memset(hi, 0, sizeof(*hi)); + *hi = cbaf_host_info_defaults; + hi->CHID = cbaf->chid; + hi->LangID = 0; /* FIXME: I guess... */ + strncpy(hi->HostFriendlyName, cbaf->host_name, + hi->HostFriendlyName_hdr.len); + hi->HostFriendlyName_hdr.len = + cpu_to_le16(strlen(hi->HostFriendlyName)); + hi_size = sizeof(*hi) + strlen(hi->HostFriendlyName); + return usb_control_msg(cbaf->usb_dev, usb_sndctrlpipe(cbaf->usb_dev, 0), + CBAF_REQ_SET_ASSOCIATION_RESPONSE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0x0101, + cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, + hi, hi_size, 1000 /* FIXME: arbitrary */); +} + +/* Show current CHID info we have set from user space */ +static ssize_t cbaf_wusb_host_info_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + char pr_chid[WUSB_CKHDID_STRSIZE]; + + ckhdid_printf(pr_chid, sizeof(pr_chid), &cbaf->chid); + return scnprintf(buf, PAGE_SIZE, "CHID: %s\nName: %s\n", + pr_chid, cbaf->host_name); +} + +/* + * Get a host info CHID from user space and send it to the device. + * + * The user can recover a CC from the device associated to that CHID + * by cat'ing wusb_connection_context. + */ +static ssize_t cbaf_wusb_host_info_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + ssize_t result; + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + + result = sscanf(buf, + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%04hx %64s\n", + &cbaf->chid.data[0] , &cbaf->chid.data[1], + &cbaf->chid.data[2] , &cbaf->chid.data[3], + &cbaf->chid.data[4] , &cbaf->chid.data[5], + &cbaf->chid.data[6] , &cbaf->chid.data[7], + &cbaf->chid.data[8] , &cbaf->chid.data[9], + &cbaf->chid.data[10], &cbaf->chid.data[11], + &cbaf->chid.data[12], &cbaf->chid.data[13], + &cbaf->chid.data[14], &cbaf->chid.data[15], + &cbaf->host_band_groups, cbaf->host_name); + if (result != 18) { + dev_err(dev, "Unrecognized CHID (need 16 8-bit hex digits, " + "a 16 bit hex band group mask " + "and a host name, got only %d)\n", (int)result); + return -EINVAL; + } + result = cbaf_send_host_info(cbaf); + if (result < 0) + dev_err(dev, "Couldn't send host information to device: %d\n", + (int)result); + else + d_printf(1, dev, "HI sent, wusb_cc can be read now\n"); + return result < 0? result : size; +} +static DEVICE_ATTR(wusb_host_info, 0600, cbaf_wusb_host_info_show, + cbaf_wusb_host_info_store); + +static const struct wusb_cbaf_device_info cbaf_device_info_defaults = { + .Length_hdr = WUSB_AR_Length, + .CDID_hdr = WUSB_AR_CDID, + .BandGroups_hdr = WUSB_AR_BandGroups, + .LangID_hdr = WUSB_AR_LangID, + .DeviceFriendlyName_hdr = WUSB_AR_DeviceFriendlyName, +}; + +/* + * Get device's information (CDID) associated to CHID + * + * The device will return it's information (CDID, name, bandgroups) + * associated to the CHID we have set before, or 0 CDID and default + * name and bandgroup if no CHID set or unknown. + */ +static int cbaf_cdid_get(struct cbaf *cbaf) +{ + int result; + struct device *dev = &cbaf->usb_iface->dev; + struct wusb_cbaf_device_info *di; + size_t needed, dev_name_size; + + di = cbaf->buffer; + result = usb_control_msg( + cbaf->usb_dev, usb_rcvctrlpipe(cbaf->usb_dev, 0), + CBAF_REQ_GET_ASSOCIATION_REQUEST, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0x0200, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, + di, cbaf->buffer_size, 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Cannot request device information: %d\n", result); + goto error_req_di; + } + needed = result < sizeof(*di)? sizeof(*di) : le32_to_cpu(di->Length); + if (result < needed) { + dev_err(dev, "Not enough data in DEVICE_INFO reply (%zu vs " + "%zu bytes needed)\n", (size_t)result, needed); + goto error_bad_di; + } + cbaf->cdid = di->CDID; + dev_name_size = le16_to_cpu(di->DeviceFriendlyName_hdr.len); + dev_name_size = dev_name_size > 65 - 1? 65 - 1 : dev_name_size; + memcpy(cbaf->device_name, di->DeviceFriendlyName, dev_name_size); + cbaf->device_name[dev_name_size] = 0; + cbaf->device_band_groups = le16_to_cpu(di->BandGroups); + result = 0; +error_req_di: +error_bad_di: + return result; +} + +/* + * Get device information and print it to sysfs + * + * See cbaf_cdid_get() + */ +static ssize_t cbaf_wusb_cdid_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + ssize_t result; + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + char pr_cdid[WUSB_CKHDID_STRSIZE]; + + result = cbaf_cdid_get(cbaf); + if (result < 0) { + dev_err(dev, "Cannot read device information: %d\n", + (int)result); + goto error_get_di; + } + ckhdid_printf(pr_cdid, sizeof(pr_cdid), &cbaf->cdid); + result = scnprintf(buf, PAGE_SIZE, + "CDID: %s\nName: %s\nBand_groups: 0x%04x\n", + pr_cdid, cbaf->device_name, + cbaf->device_band_groups); +error_get_di: + return result; +} +static DEVICE_ATTR(wusb_cdid, 0600, cbaf_wusb_cdid_show, NULL); + +static const struct wusb_cbaf_cc_data cbaf_cc_data_defaults = { + .AssociationTypeId_hdr = WUSB_AR_AssociationTypeId, + .AssociationTypeId = cpu_to_le16(AR_TYPE_WUSB), + .AssociationSubTypeId_hdr = WUSB_AR_AssociationSubTypeId, + .AssociationSubTypeId = cpu_to_le16(AR_TYPE_WUSB_ASSOCIATE), + .Length_hdr = WUSB_AR_Length, + .Length = cpu_to_le32(sizeof(struct wusb_cbaf_cc_data)), + .ConnectionContext_hdr = WUSB_AR_ConnectionContext, + .BandGroups_hdr = WUSB_AR_BandGroups, +}; + +static const struct wusb_cbaf_cc_data_fail cbaf_cc_data_fail_defaults = { + .AssociationTypeId_hdr = WUSB_AR_AssociationTypeId, + .AssociationSubTypeId_hdr = WUSB_AR_AssociationSubTypeId, + .Length_hdr = WUSB_AR_Length, + .AssociationStatus_hdr = WUSB_AR_AssociationStatus, +}; + +/* + * Send a new CC to the device + * + * So we update the CK and send the whole thing to the device + */ +static int cbaf_cc_upload(struct cbaf *cbaf) +{ + int result; + struct device *dev = &cbaf->usb_iface->dev; + struct wusb_cbaf_cc_data *ccd; + char pr_cdid[WUSB_CKHDID_STRSIZE]; + + ccd = cbaf->buffer; + *ccd = cbaf_cc_data_defaults; + ccd->CHID = cbaf->chid; + ccd->CDID = cbaf->cdid; + ccd->CK = cbaf->ck; + ccd->BandGroups = cpu_to_le16(cbaf->host_band_groups); + result = usb_control_msg( + cbaf->usb_dev, usb_sndctrlpipe(cbaf->usb_dev, 0), + CBAF_REQ_SET_ASSOCIATION_RESPONSE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0x0201, cbaf->usb_iface->cur_altsetting->desc.bInterfaceNumber, + ccd, sizeof(*ccd), 1000 /* FIXME: arbitrary */); + d_printf(1, dev, "Uploaded CC:\n"); + ckhdid_printf(pr_cdid, sizeof(pr_cdid), &ccd->CHID); + d_printf(1, dev, " CHID %s\n", pr_cdid); + ckhdid_printf(pr_cdid, sizeof(pr_cdid), &ccd->CDID); + d_printf(1, dev, " CDID %s\n", pr_cdid); + ckhdid_printf(pr_cdid, sizeof(pr_cdid), &ccd->CK); + d_printf(1, dev, " CK %s\n", pr_cdid); + d_printf(1, dev, " bandgroups 0x%04x\n", cbaf->host_band_groups); + return result; +} + +/* + * Send a new CC to the device + * + * We take the CDID and CK from user space, the rest from the info we + * set with host_info. + */ +static ssize_t cbaf_wusb_cc_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + ssize_t result; + struct usb_interface *iface = to_usb_interface(dev); + struct cbaf *cbaf = usb_get_intfdata(iface); + + result = sscanf(buf, + "CDID: %02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx\n" + "CK: %02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx\n", + &cbaf->cdid.data[0] , &cbaf->cdid.data[1], + &cbaf->cdid.data[2] , &cbaf->cdid.data[3], + &cbaf->cdid.data[4] , &cbaf->cdid.data[5], + &cbaf->cdid.data[6] , &cbaf->cdid.data[7], + &cbaf->cdid.data[8] , &cbaf->cdid.data[9], + &cbaf->cdid.data[10], &cbaf->cdid.data[11], + &cbaf->cdid.data[12], &cbaf->cdid.data[13], + &cbaf->cdid.data[14], &cbaf->cdid.data[15], + + &cbaf->ck.data[0] , &cbaf->ck.data[1], + &cbaf->ck.data[2] , &cbaf->ck.data[3], + &cbaf->ck.data[4] , &cbaf->ck.data[5], + &cbaf->ck.data[6] , &cbaf->ck.data[7], + &cbaf->ck.data[8] , &cbaf->ck.data[9], + &cbaf->ck.data[10], &cbaf->ck.data[11], + &cbaf->ck.data[12], &cbaf->ck.data[13], + &cbaf->ck.data[14], &cbaf->ck.data[15]); + if (result != 32) { + dev_err(dev, "Unrecognized CHID/CK (need 32 8-bit " + "hex digits, got only %d)\n", (int)result); + return -EINVAL; + } + result = cbaf_cc_upload(cbaf); + if (result < 0) + dev_err(dev, "Couldn't upload connection context: %d\n", + (int)result); + else + d_printf(1, dev, "Connection context uploaded\n"); + return result < 0? result : size; +} +static DEVICE_ATTR(wusb_cc, 0600, NULL, cbaf_wusb_cc_store); + +static struct attribute *cbaf_dev_attrs[] = { + &dev_attr_wusb_host_info.attr, + &dev_attr_wusb_cdid.attr, + &dev_attr_wusb_cc.attr, + NULL, +}; + +static struct attribute_group cbaf_dev_attr_group = { + .name = NULL, /* we want them in the same directory */ + .attrs = cbaf_dev_attrs, +}; + +static int cbaf_probe(struct usb_interface *iface, + const struct usb_device_id *id) +{ + int result; + struct cbaf *cbaf; + struct device *dev = &iface->dev; + + result = -ENOMEM; + cbaf = kzalloc(sizeof(*cbaf), GFP_KERNEL); + if (cbaf == NULL) { + dev_err(dev, "Unable to allocate instance\n"); + goto error_kzalloc; + } + cbaf->buffer = kmalloc(512, GFP_KERNEL); + if (cbaf->buffer == NULL) + goto error_kmalloc_buffer; + cbaf->buffer_size = 512; + cbaf->usb_dev = usb_get_dev(interface_to_usbdev(iface)); + cbaf->usb_iface = usb_get_intf(iface); + result = cbaf_check(cbaf); + if (result < 0) + goto error_check; + result = sysfs_create_group(&dev->kobj, &cbaf_dev_attr_group); + if (result < 0) { + dev_err(dev, "Can't register sysfs attr group: %d\n", result); + goto error_create_group; + } + usb_set_intfdata(iface, cbaf); + d_printf(2, dev, "CBA attached\n"); + return 0; + +error_create_group: +error_check: + kfree(cbaf->buffer); +error_kmalloc_buffer: + kfree(cbaf); +error_kzalloc: + return result; +} + +static void cbaf_disconnect(struct usb_interface *iface) +{ + struct cbaf *cbaf = usb_get_intfdata(iface); + struct device *dev = &iface->dev; + sysfs_remove_group(&dev->kobj, &cbaf_dev_attr_group); + usb_set_intfdata(iface, NULL); + usb_put_intf(iface); + kfree(cbaf->buffer); + /* paranoia: clean up crypto keys */ + memset(cbaf, 0, sizeof(*cbaf)); + kfree(cbaf); + d_printf(1, dev, "CBA detached\n"); +} + +static struct usb_device_id cbaf_id_table[] = { + { USB_INTERFACE_INFO(0xef, 0x03, 0x01), }, + { }, +}; +MODULE_DEVICE_TABLE(usb, cbaf_id_table); + +static struct usb_driver cbaf_driver = { + .name = "wusb-cbaf", + .id_table = cbaf_id_table, + .probe = cbaf_probe, + .disconnect = cbaf_disconnect, +}; + +static int __init cbaf_driver_init(void) +{ + return usb_register(&cbaf_driver); +} +module_init(cbaf_driver_init); + +static void __exit cbaf_driver_exit(void) +{ + usb_deregister(&cbaf_driver); +} +module_exit(cbaf_driver_exit); + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Wireless USB Cable Based Association"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/wusbcore/crypto.c b/drivers/usb/wusbcore/crypto.c new file mode 100644 index 000000000000..c36c4389baae --- /dev/null +++ b/drivers/usb/wusbcore/crypto.c @@ -0,0 +1,538 @@ +/* + * Ultra Wide Band + * AES-128 CCM Encryption + * + * Copyright (C) 2007 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * We don't do any encryption here; we use the Linux Kernel's AES-128 + * crypto modules to construct keys and payload blocks in a way + * defined by WUSB1.0[6]. Check the erratas, as typos are are patched + * there. + * + * Thanks a zillion to John Keys for his help and clarifications over + * the designed-by-a-committee text. + * + * So the idea is that there is this basic Pseudo-Random-Function + * defined in WUSB1.0[6.5] which is the core of everything. It works + * by tweaking some blocks, AES crypting them and then xoring + * something else with them (this seems to be called CBC(AES) -- can + * you tell I know jack about crypto?). So we just funnel it into the + * Linux Crypto API. + * + * We leave a crypto test module so we can verify that vectors match, + * every now and then. + * + * Block size: 16 bytes -- AES seems to do things in 'block sizes'. I + * am learning a lot... + * + * Conveniently, some data structures that need to be + * funneled through AES are...16 bytes in size! + */ + +#include <linux/crypto.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/uwb.h> +#include <linux/usb/wusb.h> +#include <linux/scatterlist.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + + +/* + * Block of data, as understood by AES-CCM + * + * The code assumes this structure is nothing but a 16 byte array + * (packed in a struct to avoid common mess ups that I usually do with + * arrays and enforcing type checking). + */ +struct aes_ccm_block { + u8 data[16]; +} __attribute__((packed)); + +/* + * Counter-mode Blocks (WUSB1.0[6.4]) + * + * According to CCM (or so it seems), for the purpose of calculating + * the MIC, the message is broken in N counter-mode blocks, B0, B1, + * ... BN. + * + * B0 contains flags, the CCM nonce and l(m). + * + * B1 contains l(a), the MAC header, the encryption offset and padding. + * + * If EO is nonzero, additional blocks are built from payload bytes + * until EO is exahusted (FIXME: padding to 16 bytes, I guess). The + * padding is not xmitted. + */ + +/* WUSB1.0[T6.4] */ +struct aes_ccm_b0 { + u8 flags; /* 0x59, per CCM spec */ + struct aes_ccm_nonce ccm_nonce; + __be16 lm; +} __attribute__((packed)); + +/* WUSB1.0[T6.5] */ +struct aes_ccm_b1 { + __be16 la; + u8 mac_header[10]; + __le16 eo; + u8 security_reserved; /* This is always zero */ + u8 padding; /* 0 */ +} __attribute__((packed)); + +/* + * Encryption Blocks (WUSB1.0[6.4.4]) + * + * CCM uses Ax blocks to generate a keystream with which the MIC and + * the message's payload are encoded. A0 always encrypts/decrypts the + * MIC. Ax (x>0) are used for the sucesive payload blocks. + * + * The x is the counter, and is increased for each block. + */ +struct aes_ccm_a { + u8 flags; /* 0x01, per CCM spec */ + struct aes_ccm_nonce ccm_nonce; + __be16 counter; /* Value of x */ +} __attribute__((packed)); + +static void bytewise_xor(void *_bo, const void *_bi1, const void *_bi2, + size_t size) +{ + u8 *bo = _bo; + const u8 *bi1 = _bi1, *bi2 = _bi2; + size_t itr; + for (itr = 0; itr < size; itr++) + bo[itr] = bi1[itr] ^ bi2[itr]; +} + +/* + * CC-MAC function WUSB1.0[6.5] + * + * Take a data string and produce the encrypted CBC Counter-mode MIC + * + * Note the names for most function arguments are made to (more or + * less) match those used in the pseudo-function definition given in + * WUSB1.0[6.5]. + * + * @tfm_cbc: CBC(AES) blkcipher handle (initialized) + * + * @tfm_aes: AES cipher handle (initialized) + * + * @mic: buffer for placing the computed MIC (Message Integrity + * Code). This is exactly 8 bytes, and we expect the buffer to + * be at least eight bytes in length. + * + * @key: 128 bit symmetric key + * + * @n: CCM nonce + * + * @a: ASCII string, 14 bytes long (I guess zero padded if needed; + * we use exactly 14 bytes). + * + * @b: data stream to be processed; cannot be a global or const local + * (will confuse the scatterlists) + * + * @blen: size of b... + * + * Still not very clear how this is done, but looks like this: we + * create block B0 (as WUSB1.0[6.5] says), then we AES-crypt it with + * @key. We bytewise xor B0 with B1 (1) and AES-crypt that. Then we + * take the payload and divide it in blocks (16 bytes), xor them with + * the previous crypto result (16 bytes) and crypt it, repeat the next + * block with the output of the previous one, rinse wash (I guess this + * is what AES CBC mode means...but I truly have no idea). So we use + * the CBC(AES) blkcipher, that does precisely that. The IV (Initial + * Vector) is 16 bytes and is set to zero, so + * + * See rfc3610. Linux crypto has a CBC implementation, but the + * documentation is scarce, to say the least, and the example code is + * so intricated that is difficult to understand how things work. Most + * of this is guess work -- bite me. + * + * (1) Created as 6.5 says, again, using as l(a) 'Blen + 14', and + * using the 14 bytes of @a to fill up + * b1.{mac_header,e0,security_reserved,padding}. + * + * NOTE: The definiton of l(a) in WUSB1.0[6.5] vs the definition of + * l(m) is orthogonal, they bear no relationship, so it is not + * in conflict with the parameter's relation that + * WUSB1.0[6.4.2]) defines. + * + * NOTE: WUSB1.0[A.1]: Host Nonce is missing a nibble? (1e); fixed in + * first errata released on 2005/07. + * + * NOTE: we need to clean IV to zero at each invocation to make sure + * we start with a fresh empty Initial Vector, so that the CBC + * works ok. + * + * NOTE: blen is not aligned to a block size, we'll pad zeros, that's + * what sg[4] is for. Maybe there is a smarter way to do this. + */ +static int wusb_ccm_mac(struct crypto_blkcipher *tfm_cbc, + struct crypto_cipher *tfm_aes, void *mic, + const struct aes_ccm_nonce *n, + const struct aes_ccm_label *a, const void *b, + size_t blen) +{ + int result = 0; + struct blkcipher_desc desc; + struct aes_ccm_b0 b0; + struct aes_ccm_b1 b1; + struct aes_ccm_a ax; + struct scatterlist sg[4], sg_dst; + void *iv, *dst_buf; + size_t ivsize, dst_size; + const u8 bzero[16] = { 0 }; + size_t zero_padding; + + d_fnstart(3, NULL, "(tfm_cbc %p, tfm_aes %p, mic %p, " + "n %p, a %p, b %p, blen %zu)\n", + tfm_cbc, tfm_aes, mic, n, a, b, blen); + /* + * These checks should be compile time optimized out + * ensure @a fills b1's mac_header and following fields + */ + WARN_ON(sizeof(*a) != sizeof(b1) - sizeof(b1.la)); + WARN_ON(sizeof(b0) != sizeof(struct aes_ccm_block)); + WARN_ON(sizeof(b1) != sizeof(struct aes_ccm_block)); + WARN_ON(sizeof(ax) != sizeof(struct aes_ccm_block)); + + result = -ENOMEM; + zero_padding = sizeof(struct aes_ccm_block) + - blen % sizeof(struct aes_ccm_block); + zero_padding = blen % sizeof(struct aes_ccm_block); + if (zero_padding) + zero_padding = sizeof(struct aes_ccm_block) - zero_padding; + dst_size = blen + sizeof(b0) + sizeof(b1) + zero_padding; + dst_buf = kzalloc(dst_size, GFP_KERNEL); + if (dst_buf == NULL) { + printk(KERN_ERR "E: can't alloc destination buffer\n"); + goto error_dst_buf; + } + + iv = crypto_blkcipher_crt(tfm_cbc)->iv; + ivsize = crypto_blkcipher_ivsize(tfm_cbc); + memset(iv, 0, ivsize); + + /* Setup B0 */ + b0.flags = 0x59; /* Format B0 */ + b0.ccm_nonce = *n; + b0.lm = cpu_to_be16(0); /* WUSB1.0[6.5] sez l(m) is 0 */ + + /* Setup B1 + * + * The WUSB spec is anything but clear! WUSB1.0[6.5] + * says that to initialize B1 from A with 'l(a) = blen + + * 14'--after clarification, it means to use A's contents + * for MAC Header, EO, sec reserved and padding. + */ + b1.la = cpu_to_be16(blen + 14); + memcpy(&b1.mac_header, a, sizeof(*a)); + + d_printf(4, NULL, "I: B0 (%zu bytes)\n", sizeof(b0)); + d_dump(4, NULL, &b0, sizeof(b0)); + d_printf(4, NULL, "I: B1 (%zu bytes)\n", sizeof(b1)); + d_dump(4, NULL, &b1, sizeof(b1)); + d_printf(4, NULL, "I: B (%zu bytes)\n", blen); + d_dump(4, NULL, b, blen); + d_printf(4, NULL, "I: B 0-padding (%zu bytes)\n", zero_padding); + d_printf(4, NULL, "D: IV before crypto (%zu)\n", ivsize); + d_dump(4, NULL, iv, ivsize); + + sg_init_table(sg, ARRAY_SIZE(sg)); + sg_set_buf(&sg[0], &b0, sizeof(b0)); + sg_set_buf(&sg[1], &b1, sizeof(b1)); + sg_set_buf(&sg[2], b, blen); + /* 0 if well behaved :) */ + sg_set_buf(&sg[3], bzero, zero_padding); + sg_init_one(&sg_dst, dst_buf, dst_size); + + desc.tfm = tfm_cbc; + desc.flags = 0; + result = crypto_blkcipher_encrypt(&desc, &sg_dst, sg, dst_size); + if (result < 0) { + printk(KERN_ERR "E: can't compute CBC-MAC tag (MIC): %d\n", + result); + goto error_cbc_crypt; + } + d_printf(4, NULL, "D: MIC tag\n"); + d_dump(4, NULL, iv, ivsize); + + /* Now we crypt the MIC Tag (*iv) with Ax -- values per WUSB1.0[6.5] + * The procedure is to AES crypt the A0 block and XOR the MIC + * Tag agains it; we only do the first 8 bytes and place it + * directly in the destination buffer. + * + * POS Crypto API: size is assumed to be AES's block size. + * Thanks for documenting it -- tip taken from airo.c + */ + ax.flags = 0x01; /* as per WUSB 1.0 spec */ + ax.ccm_nonce = *n; + ax.counter = 0; + crypto_cipher_encrypt_one(tfm_aes, (void *)&ax, (void *)&ax); + bytewise_xor(mic, &ax, iv, 8); + d_printf(4, NULL, "D: CTR[MIC]\n"); + d_dump(4, NULL, &ax, 8); + d_printf(4, NULL, "D: CCM-MIC tag\n"); + d_dump(4, NULL, mic, 8); + result = 8; +error_cbc_crypt: + kfree(dst_buf); +error_dst_buf: + d_fnend(3, NULL, "(tfm_cbc %p, tfm_aes %p, mic %p, " + "n %p, a %p, b %p, blen %zu)\n", + tfm_cbc, tfm_aes, mic, n, a, b, blen); + return result; +} + +/* + * WUSB Pseudo Random Function (WUSB1.0[6.5]) + * + * @b: buffer to the source data; cannot be a global or const local + * (will confuse the scatterlists) + */ +ssize_t wusb_prf(void *out, size_t out_size, + const u8 key[16], const struct aes_ccm_nonce *_n, + const struct aes_ccm_label *a, + const void *b, size_t blen, size_t len) +{ + ssize_t result, bytes = 0, bitr; + struct aes_ccm_nonce n = *_n; + struct crypto_blkcipher *tfm_cbc; + struct crypto_cipher *tfm_aes; + u64 sfn = 0; + __le64 sfn_le; + + d_fnstart(3, NULL, "(out %p, out_size %zu, key %p, _n %p, " + "a %p, b %p, blen %zu, len %zu)\n", out, out_size, + key, _n, a, b, blen, len); + + tfm_cbc = crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm_cbc)) { + result = PTR_ERR(tfm_cbc); + printk(KERN_ERR "E: can't load CBC(AES): %d\n", (int)result); + goto error_alloc_cbc; + } + result = crypto_blkcipher_setkey(tfm_cbc, key, 16); + if (result < 0) { + printk(KERN_ERR "E: can't set CBC key: %d\n", (int)result); + goto error_setkey_cbc; + } + + tfm_aes = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm_aes)) { + result = PTR_ERR(tfm_aes); + printk(KERN_ERR "E: can't load AES: %d\n", (int)result); + goto error_alloc_aes; + } + result = crypto_cipher_setkey(tfm_aes, key, 16); + if (result < 0) { + printk(KERN_ERR "E: can't set AES key: %d\n", (int)result); + goto error_setkey_aes; + } + + for (bitr = 0; bitr < (len + 63) / 64; bitr++) { + sfn_le = cpu_to_le64(sfn++); + memcpy(&n.sfn, &sfn_le, sizeof(n.sfn)); /* n.sfn++... */ + result = wusb_ccm_mac(tfm_cbc, tfm_aes, out + bytes, + &n, a, b, blen); + if (result < 0) + goto error_ccm_mac; + bytes += result; + } + result = bytes; +error_ccm_mac: +error_setkey_aes: + crypto_free_cipher(tfm_aes); +error_alloc_aes: +error_setkey_cbc: + crypto_free_blkcipher(tfm_cbc); +error_alloc_cbc: + d_fnend(3, NULL, "(out %p, out_size %zu, key %p, _n %p, " + "a %p, b %p, blen %zu, len %zu) = %d\n", out, out_size, + key, _n, a, b, blen, len, (int)bytes); + return result; +} + +/* WUSB1.0[A.2] test vectors */ +static const u8 stv_hsmic_key[16] = { + 0x4b, 0x79, 0xa3, 0xcf, 0xe5, 0x53, 0x23, 0x9d, + 0xd7, 0xc1, 0x6d, 0x1c, 0x2d, 0xab, 0x6d, 0x3f +}; + +static const struct aes_ccm_nonce stv_hsmic_n = { + .sfn = { 0 }, + .tkid = { 0x76, 0x98, 0x01, }, + .dest_addr = { .data = { 0xbe, 0x00 } }, + .src_addr = { .data = { 0x76, 0x98 } }, +}; + +/* + * Out-of-band MIC Generation verification code + * + */ +static int wusb_oob_mic_verify(void) +{ + int result; + u8 mic[8]; + /* WUSB1.0[A.2] test vectors + * + * Need to keep it in the local stack as GCC 4.1.3something + * messes up and generates noise. + */ + struct usb_handshake stv_hsmic_hs = { + .bMessageNumber = 2, + .bStatus = 00, + .tTKID = { 0x76, 0x98, 0x01 }, + .bReserved = 00, + .CDID = { 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, + 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, + 0x3c, 0x3d, 0x3e, 0x3f }, + .nonce = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, + 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, + 0x2c, 0x2d, 0x2e, 0x2f }, + .MIC = { 0x75, 0x6a, 0x97, 0x51, 0x0c, 0x8c, + 0x14, 0x7b } , + }; + size_t hs_size; + + result = wusb_oob_mic(mic, stv_hsmic_key, &stv_hsmic_n, &stv_hsmic_hs); + if (result < 0) + printk(KERN_ERR "E: WUSB OOB MIC test: failed: %d\n", result); + else if (memcmp(stv_hsmic_hs.MIC, mic, sizeof(mic))) { + printk(KERN_ERR "E: OOB MIC test: " + "mismatch between MIC result and WUSB1.0[A2]\n"); + hs_size = sizeof(stv_hsmic_hs) - sizeof(stv_hsmic_hs.MIC); + printk(KERN_ERR "E: Handshake2 in: (%zu bytes)\n", hs_size); + dump_bytes(NULL, &stv_hsmic_hs, hs_size); + printk(KERN_ERR "E: CCM Nonce in: (%zu bytes)\n", + sizeof(stv_hsmic_n)); + dump_bytes(NULL, &stv_hsmic_n, sizeof(stv_hsmic_n)); + printk(KERN_ERR "E: MIC out:\n"); + dump_bytes(NULL, mic, sizeof(mic)); + printk(KERN_ERR "E: MIC out (from WUSB1.0[A.2]):\n"); + dump_bytes(NULL, stv_hsmic_hs.MIC, sizeof(stv_hsmic_hs.MIC)); + result = -EINVAL; + } else + result = 0; + return result; +} + +/* + * Test vectors for Key derivation + * + * These come from WUSB1.0[6.5.1], the vectors in WUSB1.0[A.1] + * (errata corrected in 2005/07). + */ +static const u8 stv_key_a1[16] __attribute__ ((__aligned__(4))) = { + 0xf0, 0xe1, 0xd2, 0xc3, 0xb4, 0xa5, 0x96, 0x87, + 0x78, 0x69, 0x5a, 0x4b, 0x3c, 0x2d, 0x1e, 0x0f +}; + +static const struct aes_ccm_nonce stv_keydvt_n_a1 = { + .sfn = { 0 }, + .tkid = { 0x76, 0x98, 0x01, }, + .dest_addr = { .data = { 0xbe, 0x00 } }, + .src_addr = { .data = { 0x76, 0x98 } }, +}; + +static const struct wusb_keydvt_out stv_keydvt_out_a1 = { + .kck = { + 0x4b, 0x79, 0xa3, 0xcf, 0xe5, 0x53, 0x23, 0x9d, + 0xd7, 0xc1, 0x6d, 0x1c, 0x2d, 0xab, 0x6d, 0x3f + }, + .ptk = { + 0xc8, 0x70, 0x62, 0x82, 0xb6, 0x7c, 0xe9, 0x06, + 0x7b, 0xc5, 0x25, 0x69, 0xf2, 0x36, 0x61, 0x2d + } +}; + +/* + * Performa a test to make sure we match the vectors defined in + * WUSB1.0[A.1](Errata2006/12) + */ +static int wusb_key_derive_verify(void) +{ + int result = 0; + struct wusb_keydvt_out keydvt_out; + /* These come from WUSB1.0[A.1] + 2006/12 errata + * NOTE: can't make this const or global -- somehow it seems + * the scatterlists for crypto get confused and we get + * bad data. There is no doc on this... */ + struct wusb_keydvt_in stv_keydvt_in_a1 = { + .hnonce = { + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f + }, + .dnonce = { + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, + 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f + } + }; + + result = wusb_key_derive(&keydvt_out, stv_key_a1, &stv_keydvt_n_a1, + &stv_keydvt_in_a1); + if (result < 0) + printk(KERN_ERR "E: WUSB key derivation test: " + "derivation failed: %d\n", result); + if (memcmp(&stv_keydvt_out_a1, &keydvt_out, sizeof(keydvt_out))) { + printk(KERN_ERR "E: WUSB key derivation test: " + "mismatch between key derivation result " + "and WUSB1.0[A1] Errata 2006/12\n"); + printk(KERN_ERR "E: keydvt in: key (%zu bytes)\n", + sizeof(stv_key_a1)); + dump_bytes(NULL, stv_key_a1, sizeof(stv_key_a1)); + printk(KERN_ERR "E: keydvt in: nonce (%zu bytes)\n", + sizeof(stv_keydvt_n_a1)); + dump_bytes(NULL, &stv_keydvt_n_a1, sizeof(stv_keydvt_n_a1)); + printk(KERN_ERR "E: keydvt in: hnonce & dnonce (%zu bytes)\n", + sizeof(stv_keydvt_in_a1)); + dump_bytes(NULL, &stv_keydvt_in_a1, sizeof(stv_keydvt_in_a1)); + printk(KERN_ERR "E: keydvt out: KCK\n"); + dump_bytes(NULL, &keydvt_out.kck, sizeof(keydvt_out.kck)); + printk(KERN_ERR "E: keydvt out: PTK\n"); + dump_bytes(NULL, &keydvt_out.ptk, sizeof(keydvt_out.ptk)); + result = -EINVAL; + } else + result = 0; + return result; +} + +/* + * Initialize crypto system + * + * FIXME: we do nothing now, other than verifying. Later on we'll + * cache the encryption stuff, so that's why we have a separate init. + */ +int wusb_crypto_init(void) +{ + int result; + + result = wusb_key_derive_verify(); + if (result < 0) + return result; + return wusb_oob_mic_verify(); +} + +void wusb_crypto_exit(void) +{ + /* FIXME: free cached crypto transforms */ +} diff --git a/drivers/usb/wusbcore/dev-sysfs.c b/drivers/usb/wusbcore/dev-sysfs.c new file mode 100644 index 000000000000..7d6a614df914 --- /dev/null +++ b/drivers/usb/wusbcore/dev-sysfs.c @@ -0,0 +1,199 @@ +/* + * WUSB devices + * sysfs bindings + * + * Copyright (C) 2007 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Get them out of the way... + */ + +#include <linux/jiffies.h> +#include <linux/ctype.h> +#include <linux/workqueue.h> +#include "wusbhc.h" + +#undef D_LOCAL +#define D_LOCAL 4 +#include <linux/uwb/debug.h> + +static ssize_t wusb_dev_disconnect_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return scnprintf(buf, PAGE_SIZE, + "write a non zero value to this file to " + "force disconnect\n"); +} + +static ssize_t wusb_dev_disconnect_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct usb_device *usb_dev; + struct wusbhc *wusbhc; + unsigned command; + u8 port_idx; + + if (sscanf(buf, "%u\n", &command) != 1) + return -EINVAL; + if (command == 0) + return size; + usb_dev = to_usb_device(dev); + wusbhc = wusbhc_get_by_usb_dev(usb_dev); + if (wusbhc == NULL) + return -ENODEV; + + mutex_lock(&wusbhc->mutex); + port_idx = wusb_port_no_to_idx(usb_dev->portnum); + __wusbhc_dev_disable(wusbhc, port_idx); + mutex_unlock(&wusbhc->mutex); + wusbhc_put(wusbhc); + return size; +} +static DEVICE_ATTR(wusb_dev_disconnect, 0644, wusb_dev_disconnect_show, + wusb_dev_disconnect_store); + +static ssize_t wusb_cdid_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + ssize_t result; + struct wusb_dev *wusb_dev; + + wusb_dev = wusb_dev_get_by_usb_dev(to_usb_device(dev)); + if (wusb_dev == NULL) + return -ENODEV; + result = ckhdid_printf(buf, PAGE_SIZE, &wusb_dev->cdid); + wusb_dev_put(wusb_dev); + return result; +} +static DEVICE_ATTR(wusb_cdid, 0444, wusb_cdid_show, NULL); + +static ssize_t wusb_dev_cc_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return scnprintf(buf, PAGE_SIZE, + "Write\n" + "\n" + "CHID: [16 hex digits]\n" + "CDID: [16 hex digits]\n" + "CK: [16 hex digits]\n" + "\n" + "to this file to force a 4way handshake negotiation\n" + "[will renew pair wise and group wise key if " + "succesful].\n"); +} + +static ssize_t wusb_dev_cc_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + int result; + struct usb_device *usb_dev; + struct wusbhc *wusbhc; + struct wusb_ckhdid chid, cdid, ck; + + result = sscanf(buf, + "CHID: %02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx\n" + "CDID: %02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx\n" + "CK: %02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx\n", + &chid.data[0] , &chid.data[1], + &chid.data[2] , &chid.data[3], + &chid.data[4] , &chid.data[5], + &chid.data[6] , &chid.data[7], + &chid.data[8] , &chid.data[9], + &chid.data[10], &chid.data[11], + &chid.data[12], &chid.data[13], + &chid.data[14], &chid.data[15], + + &cdid.data[0] , &cdid.data[1], + &cdid.data[2] , &cdid.data[3], + &cdid.data[4] , &cdid.data[5], + &cdid.data[6] , &cdid.data[7], + &cdid.data[8] , &cdid.data[9], + &cdid.data[10], &cdid.data[11], + &cdid.data[12], &cdid.data[13], + &cdid.data[14], &cdid.data[15], + + &ck.data[0] , &ck.data[1], + &ck.data[2] , &ck.data[3], + &ck.data[4] , &ck.data[5], + &ck.data[6] , &ck.data[7], + &ck.data[8] , &ck.data[9], + &ck.data[10], &ck.data[11], + &ck.data[12], &ck.data[13], + &ck.data[14], &ck.data[15]); + if (result != 48) { + dev_err(dev, "Unrecognized CHID/CDID/CK (need 48 8-bit " + "hex digits, got only %d)\n", result); + return -EINVAL; + } + + usb_dev = to_usb_device(dev); + wusbhc = wusbhc_get_by_usb_dev(usb_dev); + if (wusbhc == NULL) + return -ENODEV; + result = wusb_dev_4way_handshake(wusbhc, usb_dev->wusb_dev, + &chid, &cdid, &ck); + memset(&chid, 0, sizeof(chid)); + memset(&cdid, 0, sizeof(cdid)); + memset(&ck, 0, sizeof(ck)); + wusbhc_put(wusbhc); + return result < 0? result : size; +} +static DEVICE_ATTR(wusb_dev_cc, 0644, wusb_dev_cc_show, wusb_dev_cc_store); + +static struct attribute *wusb_dev_attrs[] = { + &dev_attr_wusb_dev_disconnect.attr, + &dev_attr_wusb_cdid.attr, + &dev_attr_wusb_dev_cc.attr, + NULL, +}; + +static struct attribute_group wusb_dev_attr_group = { + .name = NULL, /* we want them in the same directory */ + .attrs = wusb_dev_attrs, +}; + +int wusb_dev_sysfs_add(struct wusbhc *wusbhc, struct usb_device *usb_dev, + struct wusb_dev *wusb_dev) +{ + int result = sysfs_create_group(&usb_dev->dev.kobj, + &wusb_dev_attr_group); + struct device *dev = &usb_dev->dev; + if (result < 0) + dev_err(dev, "Cannot register WUSB-dev attributes: %d\n", + result); + return result; +} + +void wusb_dev_sysfs_rm(struct wusb_dev *wusb_dev) +{ + struct usb_device *usb_dev = wusb_dev->usb_dev; + if (usb_dev) + sysfs_remove_group(&usb_dev->dev.kobj, &wusb_dev_attr_group); +} diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c new file mode 100644 index 000000000000..386db5adcafa --- /dev/null +++ b/drivers/usb/wusbcore/devconnect.c @@ -0,0 +1,1319 @@ +/* + * WUSB Wire Adapter: Control/Data Streaming Interface (WUSB[8]) + * Device Connect handling + * + * Copyright (C) 2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * FIXME: this file needs to be broken up, it's grown too big + * + * + * WUSB1.0[7.1, 7.5.1, ] + * + * WUSB device connection is kind of messy. Some background: + * + * When a device wants to connect it scans the UWB radio channels + * looking for a WUSB Channel; a WUSB channel is defined by MMCs + * (Micro Managed Commands or something like that) [see + * Design-overview for more on this] . + * + * So, device scans the radio, finds MMCs and thus a host and checks + * when the next DNTS is. It sends a Device Notification Connect + * (DN_Connect); the host picks it up (through nep.c and notif.c, ends + * up in wusb_devconnect_ack(), which creates a wusb_dev structure in + * wusbhc->port[port_number].wusb_dev), assigns an unauth address + * to the device (this means from 0x80 to 0xfe) and sends, in the MMC + * a Connect Ack Information Element (ConnAck IE). + * + * So now the device now has a WUSB address. From now on, we use + * that to talk to it in the RPipes. + * + * ASSUMPTIONS: + * + * - We use the the as device address the port number where it is + * connected (port 0 doesn't exist). For unauth, it is 128 + that. + * + * ROADMAP: + * + * This file contains the logic for doing that--entry points: + * + * wusb_devconnect_ack() Ack a device until _acked() called. + * Called by notif.c:wusb_handle_dn_connect() + * when a DN_Connect is received. + * + * wusbhc_devconnect_auth() Called by rh.c:wusbhc_rh_port_reset() when + * doing the device connect sequence. + * + * wusb_devconnect_acked() Ack done, release resources. + * + * wusb_handle_dn_alive() Called by notif.c:wusb_handle_dn() + * for processing a DN_Alive pong from a device. + * + * wusb_handle_dn_disconnect()Called by notif.c:wusb_handle_dn() to + * process a disconenct request from a + * device. + * + * wusb_dev_reset() Called by rh.c:wusbhc_rh_port_reset() when + * resetting a device. + * + * __wusb_dev_disable() Called by rh.c:wusbhc_rh_clear_port_feat() when + * disabling a port. + * + * wusb_devconnect_create() Called when creating the host by + * lc.c:wusbhc_create(). + * + * wusb_devconnect_destroy() Cleanup called removing the host. Called + * by lc.c:wusbhc_destroy(). + * + * Each Wireless USB host maintains a list of DN_Connect requests + * (actually we maintain a list of pending Connect Acks, the + * wusbhc->ca_list). + * + * LIFE CYCLE OF port->wusb_dev + * + * Before the @wusbhc structure put()s the reference it owns for + * port->wusb_dev [and clean the wusb_dev pointer], it needs to + * lock @wusbhc->mutex. + */ + +#include <linux/jiffies.h> +#include <linux/ctype.h> +#include <linux/workqueue.h> +#include "wusbhc.h" + +#undef D_LOCAL +#define D_LOCAL 1 +#include <linux/uwb/debug.h> + +static void wusbhc_devconnect_acked_work(struct work_struct *work); + +static void wusb_dev_free(struct wusb_dev *wusb_dev) +{ + if (wusb_dev) { + kfree(wusb_dev->set_gtk_req); + usb_free_urb(wusb_dev->set_gtk_urb); + kfree(wusb_dev); + } +} + +static struct wusb_dev *wusb_dev_alloc(struct wusbhc *wusbhc) +{ + struct wusb_dev *wusb_dev; + struct urb *urb; + struct usb_ctrlrequest *req; + + wusb_dev = kzalloc(sizeof(*wusb_dev), GFP_KERNEL); + if (wusb_dev == NULL) + goto err; + + wusb_dev->wusbhc = wusbhc; + + INIT_WORK(&wusb_dev->devconnect_acked_work, wusbhc_devconnect_acked_work); + + urb = usb_alloc_urb(0, GFP_KERNEL); + if (urb == NULL) + goto err; + + req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL); + if (req == NULL) + goto err; + + req->bRequestType = USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE; + req->bRequest = USB_REQ_SET_DESCRIPTOR; + req->wValue = cpu_to_le16(USB_DT_KEY << 8 | wusbhc->gtk_index.value); + req->wIndex = 0; + req->wLength = cpu_to_le16(wusbhc->gtk.descr.bLength); + + wusb_dev->set_gtk_urb = urb; + wusb_dev->set_gtk_req = req; + + return wusb_dev; +err: + wusb_dev_free(wusb_dev); + return NULL; +} + + +/* + * Using the Connect-Ack list, fill out the @wusbhc Connect-Ack WUSB IE + * properly so that it can be added to the MMC. + * + * We just get the @wusbhc->ca_list and fill out the first four ones or + * less (per-spec WUSB1.0[7.5, before T7-38). If the ConnectAck WUSB + * IE is not allocated, we alloc it. + * + * @wusbhc->mutex must be taken + */ +static void wusbhc_fill_cack_ie(struct wusbhc *wusbhc) +{ + unsigned cnt; + struct wusb_dev *dev_itr; + struct wuie_connect_ack *cack_ie; + + cack_ie = &wusbhc->cack_ie; + cnt = 0; + list_for_each_entry(dev_itr, &wusbhc->cack_list, cack_node) { + cack_ie->blk[cnt].CDID = dev_itr->cdid; + cack_ie->blk[cnt].bDeviceAddress = dev_itr->addr; + if (++cnt >= WUIE_ELT_MAX) + break; + } + cack_ie->hdr.bLength = sizeof(cack_ie->hdr) + + cnt * sizeof(cack_ie->blk[0]); +} + +/* + * Register a new device that wants to connect + * + * A new device wants to connect, so we add it to the Connect-Ack + * list. We give it an address in the unauthorized range (bit 8 set); + * user space will have to drive authorization further on. + * + * @dev_addr: address to use for the device (which is also the port + * number). + * + * @wusbhc->mutex must be taken + */ +static struct wusb_dev *wusbhc_cack_add(struct wusbhc *wusbhc, + struct wusb_dn_connect *dnc, + const char *pr_cdid, u8 port_idx) +{ + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + int new_connection = dnc->new_connection; + u8 dev_addr; + int result; + + d_fnstart(3, dev, "(wusbhc %p port_idx %d)\n", wusbhc, port_idx); + /* Is it registered already? */ + list_for_each_entry(wusb_dev, &wusbhc->cack_list, cack_node) + if (!memcmp(&wusb_dev->cdid, &dnc->CDID, + sizeof(wusb_dev->cdid))) + return wusb_dev; + /* We don't have it, create an entry, register it */ + wusb_dev = wusb_dev_alloc(wusbhc); + if (wusb_dev == NULL) { + if (printk_ratelimit()) + dev_err(dev, "DN CONNECT: no memory to process %s's %s " + "request\n", pr_cdid, + new_connection? "connect" : "reconnect"); + return NULL; + } + wusb_dev_init(wusb_dev); + wusb_dev->cdid = dnc->CDID; + wusb_dev->port_idx = port_idx; + + /* + * Devices are always available within the cluster reservation + * and since the hardware will take the intersection of the + * per-device availability and the cluster reservation, the + * per-device availability can simply be set to always + * available. + */ + bitmap_fill(wusb_dev->availability.bm, UWB_NUM_MAS); + + /* FIXME: handle reconnects instead of assuming connects are + always new. */ + if (1 && new_connection == 0) + new_connection = 1; + if (new_connection) { + dev_addr = (port_idx + 2) | WUSB_DEV_ADDR_UNAUTH; + + dev_info(dev, "Connecting new WUSB device to address %u, " + "port %u\n", dev_addr, port_idx); + + result = wusb_set_dev_addr(wusbhc, wusb_dev, dev_addr); + if (result < 0) + return NULL; + } + wusb_dev->entry_ts = jiffies; + list_add_tail(&wusb_dev->cack_node, &wusbhc->cack_list); + wusbhc->cack_count++; + wusbhc_fill_cack_ie(wusbhc); + d_fnend(3, dev, "(wusbhc %p port_idx %d)\n", wusbhc, port_idx); + return wusb_dev; +} + +/* + * Remove a Connect-Ack context entry from the HCs view + * + * @wusbhc->mutex must be taken + */ +static void wusbhc_cack_rm(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct device *dev = wusbhc->dev; + d_fnstart(3, dev, "(wusbhc %p wusb_dev %p)\n", wusbhc, wusb_dev); + list_del_init(&wusb_dev->cack_node); + wusbhc->cack_count--; + wusbhc_fill_cack_ie(wusbhc); + d_fnend(3, dev, "(wusbhc %p wusb_dev %p) = void\n", wusbhc, wusb_dev); +} + +/* + * @wusbhc->mutex must be taken */ +static +void wusbhc_devconnect_acked(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct device *dev = wusbhc->dev; + d_fnstart(3, dev, "(wusbhc %p wusb_dev %p)\n", wusbhc, wusb_dev); + wusbhc_cack_rm(wusbhc, wusb_dev); + if (wusbhc->cack_count) + wusbhc_mmcie_set(wusbhc, 0, 0, &wusbhc->cack_ie.hdr); + else + wusbhc_mmcie_rm(wusbhc, &wusbhc->cack_ie.hdr); + d_fnend(3, dev, "(wusbhc %p wusb_dev %p) = void\n", wusbhc, wusb_dev); +} + +static void wusbhc_devconnect_acked_work(struct work_struct *work) +{ + struct wusb_dev *wusb_dev = container_of(work, struct wusb_dev, + devconnect_acked_work); + struct wusbhc *wusbhc = wusb_dev->wusbhc; + + mutex_lock(&wusbhc->mutex); + wusbhc_devconnect_acked(wusbhc, wusb_dev); + mutex_unlock(&wusbhc->mutex); +} + +/* + * Ack a device for connection + * + * FIXME: docs + * + * @pr_cdid: Printable CDID...hex Use @dnc->cdid for the real deal. + * + * So we get the connect ack IE (may have been allocated already), + * find an empty connect block, an empty virtual port, create an + * address with it (see below), make it an unauth addr [bit 7 set] and + * set the MMC. + * + * Addresses: because WUSB hosts have no downstream hubs, we can do a + * 1:1 mapping between 'port number' and device + * address. This simplifies many things, as during this + * initial connect phase the USB stack has no knoledge of + * the device and hasn't assigned an address yet--we know + * USB's choose_address() will use the same euristics we + * use here, so we can assume which address will be assigned. + * + * USB stack always assigns address 1 to the root hub, so + * to the port number we add 2 (thus virtual port #0 is + * addr #2). + * + * @wusbhc shall be referenced + */ +static +void wusbhc_devconnect_ack(struct wusbhc *wusbhc, struct wusb_dn_connect *dnc, + const char *pr_cdid) +{ + int result; + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + struct wusb_port *port; + unsigned idx, devnum; + + d_fnstart(3, dev, "(%p, %p, %s)\n", wusbhc, dnc, pr_cdid); + mutex_lock(&wusbhc->mutex); + + /* Check we are not handling it already */ + for (idx = 0; idx < wusbhc->ports_max; idx++) { + port = wusb_port_by_idx(wusbhc, idx); + if (port->wusb_dev + && !memcmp(&dnc->CDID, &port->wusb_dev->cdid, + sizeof(dnc->CDID))) { + if (printk_ratelimit()) + dev_err(dev, "Already handling dev %s " + " (it might be slow)\n", pr_cdid); + goto error_unlock; + } + } + /* Look up those fake ports we have for a free one */ + for (idx = 0; idx < wusbhc->ports_max; idx++) { + port = wusb_port_by_idx(wusbhc, idx); + if (port->power && port->connection == 0) + break; + } + if (idx >= wusbhc->ports_max) { + dev_err(dev, "Host controller can't connect more devices " + "(%u already connected); device %s rejected\n", + wusbhc->ports_max, pr_cdid); + /* NOTE: we could send a WUIE_Disconnect here, but we haven't + * event acked, so the device will eventually timeout the + * connection, right? */ + goto error_unlock; + } + + devnum = idx + 2; + + /* Make sure we are using no crypto on that "virtual port" */ + wusbhc->set_ptk(wusbhc, idx, 0, NULL, 0); + + /* Grab a filled in Connect-Ack context, fill out the + * Connect-Ack Wireless USB IE, set the MMC */ + wusb_dev = wusbhc_cack_add(wusbhc, dnc, pr_cdid, idx); + if (wusb_dev == NULL) + goto error_unlock; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &wusbhc->cack_ie.hdr); + if (result < 0) + goto error_unlock; + /* Give the device at least 2ms (WUSB1.0[7.5.1p3]), let's do + * three for a good measure */ + msleep(3); + port->wusb_dev = wusb_dev; + port->connection = 1; + port->c_connection = 1; + port->reset_count = 0; + /* Now the port status changed to connected; khubd will + * pick the change up and try to reset the port to bring it to + * the enabled state--so this process returns up to the stack + * and it calls back into wusbhc_rh_port_reset() who will call + * devconnect_auth(). + */ +error_unlock: + mutex_unlock(&wusbhc->mutex); + d_fnend(3, dev, "(%p, %p, %s) = void\n", wusbhc, dnc, pr_cdid); + return; + +} + +/* + * Disconnect a Wireless USB device from its fake port + * + * Marks the port as disconnected so that khubd can pick up the change + * and drops our knowledge about the device. + * + * Assumes there is a device connected + * + * @port_index: zero based port number + * + * NOTE: @wusbhc->mutex is locked + * + * WARNING: From here it is not very safe to access anything hanging off + * wusb_dev + */ +static void __wusbhc_dev_disconnect(struct wusbhc *wusbhc, + struct wusb_port *port) +{ + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev = port->wusb_dev; + + d_fnstart(3, dev, "(wusbhc %p, port %p)\n", wusbhc, port); + port->connection = 0; + port->enable = 0; + port->suspend = 0; + port->reset = 0; + port->low_speed = 0; + port->high_speed = 0; + port->c_connection = 1; + port->c_enable = 1; + if (wusb_dev) { + if (!list_empty(&wusb_dev->cack_node)) + list_del_init(&wusb_dev->cack_node); + /* For the one in cack_add() */ + wusb_dev_put(wusb_dev); + } + port->wusb_dev = NULL; + /* don't reset the reset_count to zero or wusbhc_rh_port_reset will get + * confused! We only reset to zero when we connect a new device. + */ + + /* After a device disconnects, change the GTK (see [WUSB] + * section 6.2.11.2). */ + wusbhc_gtk_rekey(wusbhc); + + d_fnend(3, dev, "(wusbhc %p, port %p) = void\n", wusbhc, port); + /* The Wireless USB part has forgotten about the device already; now + * khubd's timer will pick up the disconnection and remove the USB + * device from the system + */ +} + +/* + * Authenticate a device into the WUSB Cluster + * + * Called from the Root Hub code (rh.c:wusbhc_rh_port_reset()) when + * asking for a reset on a port that is not enabled (ie: first connect + * on the port). + * + * Performs the 4way handshake to allow the device to comunicate w/ the + * WUSB Cluster securely; once done, issue a request to the device for + * it to change to address 0. + * + * This mimics the reset step of Wired USB that once resetting a + * device, leaves the port in enabled state and the dev with the + * default address (0). + * + * WUSB1.0[7.1.2] + * + * @port_idx: port where the change happened--This is the index into + * the wusbhc port array, not the USB port number. + */ +int wusbhc_devconnect_auth(struct wusbhc *wusbhc, u8 port_idx) +{ + struct device *dev = wusbhc->dev; + struct wusb_port *port = wusb_port_by_idx(wusbhc, port_idx); + + d_fnstart(3, dev, "(%p, %u)\n", wusbhc, port_idx); + port->reset = 0; + port->c_reset = 1; + port->enable = 1; + port->c_enable = 1; + d_fnend(3, dev, "(%p, %u) = 0\n", wusbhc, port_idx); + return 0; +} + +/* + * Refresh the list of keep alives to emit in the MMC + * + * Some devices don't respond to keep alives unless they've been + * authenticated, so skip unauthenticated devices. + * + * We only publish the first four devices that have a coming timeout + * condition. Then when we are done processing those, we go for the + * next ones. We ignore the ones that have timed out already (they'll + * be purged). + * + * This might cause the first devices to timeout the last devices in + * the port array...FIXME: come up with a better algorithm? + * + * Note we can't do much about MMC's ops errors; we hope next refresh + * will kind of handle it. + * + * NOTE: @wusbhc->mutex is locked + */ +static void __wusbhc_keep_alive(struct wusbhc *wusbhc) +{ + int result; + struct device *dev = wusbhc->dev; + unsigned cnt; + struct wusb_dev *wusb_dev; + struct wusb_port *wusb_port; + struct wuie_keep_alive *ie = &wusbhc->keep_alive_ie; + unsigned keep_alives, old_keep_alives; + + d_fnstart(5, dev, "(wusbhc %p)\n", wusbhc); + old_keep_alives = ie->hdr.bLength - sizeof(ie->hdr); + keep_alives = 0; + for (cnt = 0; + keep_alives <= WUIE_ELT_MAX && cnt < wusbhc->ports_max; + cnt++) { + unsigned tt = msecs_to_jiffies(wusbhc->trust_timeout); + + wusb_port = wusb_port_by_idx(wusbhc, cnt); + wusb_dev = wusb_port->wusb_dev; + + if (wusb_dev == NULL) + continue; + if (wusb_dev->usb_dev == NULL || !wusb_dev->usb_dev->authenticated) + continue; + + if (time_after(jiffies, wusb_dev->entry_ts + tt)) { + dev_err(dev, "KEEPALIVE: device %u timed out\n", + wusb_dev->addr); + __wusbhc_dev_disconnect(wusbhc, wusb_port); + } else if (time_after(jiffies, wusb_dev->entry_ts + tt/2)) { + /* Approaching timeout cut out, need to refresh */ + ie->bDeviceAddress[keep_alives++] = wusb_dev->addr; + } + } + if (keep_alives & 0x1) /* pad to even number ([WUSB] section 7.5.9) */ + ie->bDeviceAddress[keep_alives++] = 0x7f; + ie->hdr.bLength = sizeof(ie->hdr) + + keep_alives*sizeof(ie->bDeviceAddress[0]); + if (keep_alives > 0) { + result = wusbhc_mmcie_set(wusbhc, 10, 5, &ie->hdr); + if (result < 0 && printk_ratelimit()) + dev_err(dev, "KEEPALIVE: can't set MMC: %d\n", result); + } else if (old_keep_alives != 0) + wusbhc_mmcie_rm(wusbhc, &ie->hdr); + d_fnend(5, dev, "(wusbhc %p) = void\n", wusbhc); +} + +/* + * Do a run through all devices checking for timeouts + */ +static void wusbhc_keep_alive_run(struct work_struct *ws) +{ + struct delayed_work *dw = + container_of(ws, struct delayed_work, work); + struct wusbhc *wusbhc = + container_of(dw, struct wusbhc, keep_alive_timer); + + d_fnstart(5, wusbhc->dev, "(wusbhc %p)\n", wusbhc); + if (wusbhc->active) { + mutex_lock(&wusbhc->mutex); + __wusbhc_keep_alive(wusbhc); + mutex_unlock(&wusbhc->mutex); + queue_delayed_work(wusbd, &wusbhc->keep_alive_timer, + (wusbhc->trust_timeout * CONFIG_HZ)/1000/2); + } + d_fnend(5, wusbhc->dev, "(wusbhc %p) = void\n", wusbhc); + return; +} + +/* + * Find the wusb_dev from its device address. + * + * The device can be found directly from the address (see + * wusb_cack_add() for where the device address is set to port_idx + * +2), except when the address is zero. + */ +static struct wusb_dev *wusbhc_find_dev_by_addr(struct wusbhc *wusbhc, u8 addr) +{ + int p; + + if (addr == 0xff) /* unconnected */ + return NULL; + + if (addr > 0) { + int port = (addr & ~0x80) - 2; + if (port < 0 || port >= wusbhc->ports_max) + return NULL; + return wusb_port_by_idx(wusbhc, port)->wusb_dev; + } + + /* Look for the device with address 0. */ + for (p = 0; p < wusbhc->ports_max; p++) { + struct wusb_dev *wusb_dev = wusb_port_by_idx(wusbhc, p)->wusb_dev; + if (wusb_dev && wusb_dev->addr == addr) + return wusb_dev; + } + return NULL; +} + +/* + * Handle a DN_Alive notification (WUSB1.0[7.6.1]) + * + * This just updates the device activity timestamp and then refreshes + * the keep alive IE. + * + * @wusbhc shall be referenced and unlocked + */ +static void wusbhc_handle_dn_alive(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct device *dev = wusbhc->dev; + + d_printf(2, dev, "DN ALIVE: device 0x%02x pong\n", wusb_dev->addr); + + mutex_lock(&wusbhc->mutex); + wusb_dev->entry_ts = jiffies; + __wusbhc_keep_alive(wusbhc); + mutex_unlock(&wusbhc->mutex); +} + +/* + * Handle a DN_Connect notification (WUSB1.0[7.6.1]) + * + * @wusbhc + * @pkt_hdr + * @size: Size of the buffer where the notification resides; if the + * notification data suggests there should be more data than + * available, an error will be signaled and the whole buffer + * consumed. + * + * @wusbhc->mutex shall be held + */ +static void wusbhc_handle_dn_connect(struct wusbhc *wusbhc, + struct wusb_dn_hdr *dn_hdr, + size_t size) +{ + struct device *dev = wusbhc->dev; + struct wusb_dn_connect *dnc; + char pr_cdid[WUSB_CKHDID_STRSIZE]; + static const char *beacon_behaviour[] = { + "reserved", + "self-beacon", + "directed-beacon", + "no-beacon" + }; + + d_fnstart(3, dev, "(%p, %p, %zu)\n", wusbhc, dn_hdr, size); + if (size < sizeof(*dnc)) { + dev_err(dev, "DN CONNECT: short notification (%zu < %zu)\n", + size, sizeof(*dnc)); + goto out; + } + + dnc = container_of(dn_hdr, struct wusb_dn_connect, hdr); + dnc->bmAttributes = le16_to_cpu(dnc->bmAttributes_le); + ckhdid_printf(pr_cdid, sizeof(pr_cdid), &dnc->CDID); + dev_info(dev, "DN CONNECT: device %s @ %x (%s) wants to %s\n", + pr_cdid, + dnc->prev_dev_addr, beacon_behaviour[dnc->beacon_behaviour], + dnc->new_connection? "connect" : "reconnect"); + /* ACK the connect */ + wusbhc_devconnect_ack(wusbhc, dnc, pr_cdid); +out: + d_fnend(3, dev, "(%p, %p, %zu) = void\n", + wusbhc, dn_hdr, size); + return; +} + +/* + * Handle a DN_Disconnect notification (WUSB1.0[7.6.1]) + * + * Device is going down -- do the disconnect. + * + * @wusbhc shall be referenced and unlocked + */ +static void wusbhc_handle_dn_disconnect(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct device *dev = wusbhc->dev; + + dev_info(dev, "DN DISCONNECT: device 0x%02x going down\n", wusb_dev->addr); + + mutex_lock(&wusbhc->mutex); + __wusbhc_dev_disconnect(wusbhc, wusb_port_by_idx(wusbhc, wusb_dev->port_idx)); + mutex_unlock(&wusbhc->mutex); +} + +/* + * Reset a WUSB device on a HWA + * + * @wusbhc + * @port_idx Index of the port where the device is + * + * In Wireless USB, a reset is more or less equivalent to a full + * disconnect; so we just do a full disconnect and send the device a + * Device Reset IE (WUSB1.0[7.5.11]) giving it a few millisecs (6 MMCs). + * + * @wusbhc should be refcounted and unlocked + */ +int wusbhc_dev_reset(struct wusbhc *wusbhc, u8 port_idx) +{ + int result; + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + struct wuie_reset *ie; + + d_fnstart(3, dev, "(%p, %u)\n", wusbhc, port_idx); + mutex_lock(&wusbhc->mutex); + result = 0; + wusb_dev = wusb_port_by_idx(wusbhc, port_idx)->wusb_dev; + if (wusb_dev == NULL) { + /* reset no device? ignore */ + dev_dbg(dev, "RESET: no device at port %u, ignoring\n", + port_idx); + goto error_unlock; + } + result = -ENOMEM; + ie = kzalloc(sizeof(*ie), GFP_KERNEL); + if (ie == NULL) + goto error_unlock; + ie->hdr.bLength = sizeof(ie->hdr) + sizeof(ie->CDID); + ie->hdr.bIEIdentifier = WUIE_ID_RESET_DEVICE; + ie->CDID = wusb_dev->cdid; + result = wusbhc_mmcie_set(wusbhc, 0xff, 6, &ie->hdr); + if (result < 0) { + dev_err(dev, "RESET: cant's set MMC: %d\n", result); + goto error_kfree; + } + __wusbhc_dev_disconnect(wusbhc, wusb_port_by_idx(wusbhc, port_idx)); + + /* 120ms, hopefully 6 MMCs (FIXME) */ + msleep(120); + wusbhc_mmcie_rm(wusbhc, &ie->hdr); +error_kfree: + kfree(ie); +error_unlock: + mutex_unlock(&wusbhc->mutex); + d_fnend(3, dev, "(%p, %u) = %d\n", wusbhc, port_idx, result); + return result; +} + +/* + * Handle a Device Notification coming a host + * + * The Device Notification comes from a host (HWA, DWA or WHCI) + * wrapped in a set of headers. Somebody else has peeled off those + * headers for us and we just get one Device Notifications. + * + * Invalid DNs (e.g., too short) are discarded. + * + * @wusbhc shall be referenced + * + * FIXMES: + * - implement priorities as in WUSB1.0[Table 7-55]? + */ +void wusbhc_handle_dn(struct wusbhc *wusbhc, u8 srcaddr, + struct wusb_dn_hdr *dn_hdr, size_t size) +{ + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + + d_fnstart(3, dev, "(%p, %p)\n", wusbhc, dn_hdr); + + if (size < sizeof(struct wusb_dn_hdr)) { + dev_err(dev, "DN data shorter than DN header (%d < %d)\n", + (int)size, (int)sizeof(struct wusb_dn_hdr)); + goto out; + } + + wusb_dev = wusbhc_find_dev_by_addr(wusbhc, srcaddr); + if (wusb_dev == NULL && dn_hdr->bType != WUSB_DN_CONNECT) { + dev_dbg(dev, "ignoring DN %d from unconnected device %02x\n", + dn_hdr->bType, srcaddr); + goto out; + } + + switch (dn_hdr->bType) { + case WUSB_DN_CONNECT: + wusbhc_handle_dn_connect(wusbhc, dn_hdr, size); + break; + case WUSB_DN_ALIVE: + wusbhc_handle_dn_alive(wusbhc, wusb_dev); + break; + case WUSB_DN_DISCONNECT: + wusbhc_handle_dn_disconnect(wusbhc, wusb_dev); + break; + case WUSB_DN_EPRDY: + case WUSB_DN_MASAVAILCHANGED: + case WUSB_DN_RWAKE: + case WUSB_DN_SLEEP: + dev_warn(dev, "ignoring DN %u from %u\n", + dn_hdr->bType, srcaddr); + break; + default: + dev_warn(dev, "unknown DN %u (%d octets) from %u\n", + dn_hdr->bType, (int)size, srcaddr); + } +out: + d_fnend(3, dev, "(%p, %p) = void\n", wusbhc, dn_hdr); + return; +} +EXPORT_SYMBOL_GPL(wusbhc_handle_dn); + +/* + * Disconnect a WUSB device from a the cluster + * + * @wusbhc + * @port Fake port where the device is (wusbhc index, not USB port number). + * + * In Wireless USB, a disconnect is basically telling the device he is + * being disconnected and forgetting about him. + * + * We send the device a Device Disconnect IE (WUSB1.0[7.5.11]) for 100 + * ms and then keep going. + * + * We don't do much in case of error; we always pretend we disabled + * the port and disconnected the device. If physically the request + * didn't get there (many things can fail in the way there), the stack + * will reject the device's communication attempts. + * + * @wusbhc should be refcounted and locked + */ +void __wusbhc_dev_disable(struct wusbhc *wusbhc, u8 port_idx) +{ + int result; + struct device *dev = wusbhc->dev; + struct wusb_dev *wusb_dev; + struct wuie_disconnect *ie; + + d_fnstart(3, dev, "(%p, %u)\n", wusbhc, port_idx); + result = 0; + wusb_dev = wusb_port_by_idx(wusbhc, port_idx)->wusb_dev; + if (wusb_dev == NULL) { + /* reset no device? ignore */ + dev_dbg(dev, "DISCONNECT: no device at port %u, ignoring\n", + port_idx); + goto error; + } + __wusbhc_dev_disconnect(wusbhc, wusb_port_by_idx(wusbhc, port_idx)); + + result = -ENOMEM; + ie = kzalloc(sizeof(*ie), GFP_KERNEL); + if (ie == NULL) + goto error; + ie->hdr.bLength = sizeof(*ie); + ie->hdr.bIEIdentifier = WUIE_ID_DEVICE_DISCONNECT; + ie->bDeviceAddress = wusb_dev->addr; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &ie->hdr); + if (result < 0) { + dev_err(dev, "DISCONNECT: can't set MMC: %d\n", result); + goto error_kfree; + } + + /* 120ms, hopefully 6 MMCs */ + msleep(100); + wusbhc_mmcie_rm(wusbhc, &ie->hdr); +error_kfree: + kfree(ie); +error: + d_fnend(3, dev, "(%p, %u) = %d\n", wusbhc, port_idx, result); + return; +} + +static void wusb_cap_descr_printf(const unsigned level, struct device *dev, + const struct usb_wireless_cap_descriptor *wcd) +{ + d_printf(level, dev, + "WUSB Capability Descriptor\n" + " bDevCapabilityType 0x%02x\n" + " bmAttributes 0x%02x\n" + " wPhyRates 0x%04x\n" + " bmTFITXPowerInfo 0x%02x\n" + " bmFFITXPowerInfo 0x%02x\n" + " bmBandGroup 0x%04x\n" + " bReserved 0x%02x\n", + wcd->bDevCapabilityType, + wcd->bmAttributes, + le16_to_cpu(wcd->wPHYRates), + wcd->bmTFITXPowerInfo, + wcd->bmFFITXPowerInfo, + wcd->bmBandGroup, + wcd->bReserved); +} + +/* + * Walk over the BOS descriptor, verify and grok it + * + * @usb_dev: referenced + * @wusb_dev: referenced and unlocked + * + * The BOS descriptor is defined at WUSB1.0[7.4.1], and it defines a + * "flexible" way to wrap all kinds of descriptors inside an standard + * descriptor (wonder why they didn't use normal descriptors, + * btw). Not like they lack code. + * + * At the end we go to look for the WUSB Device Capabilities + * (WUSB1.0[7.4.1.1]) that is wrapped in a device capability descriptor + * that is part of the BOS descriptor set. That tells us what does the + * device support (dual role, beacon type, UWB PHY rates). + */ +static int wusb_dev_bos_grok(struct usb_device *usb_dev, + struct wusb_dev *wusb_dev, + struct usb_bos_descriptor *bos, size_t desc_size) +{ + ssize_t result; + struct device *dev = &usb_dev->dev; + void *itr, *top; + + /* Walk over BOS capabilities, verify them */ + itr = (void *)bos + sizeof(*bos); + top = itr + desc_size - sizeof(*bos); + while (itr < top) { + struct usb_dev_cap_header *cap_hdr = itr; + size_t cap_size; + u8 cap_type; + if (top - itr < sizeof(*cap_hdr)) { + dev_err(dev, "Device BUG? premature end of BOS header " + "data [offset 0x%02x]: only %zu bytes left\n", + (int)(itr - (void *)bos), top - itr); + result = -ENOSPC; + goto error_bad_cap; + } + cap_size = cap_hdr->bLength; + cap_type = cap_hdr->bDevCapabilityType; + d_printf(4, dev, "BOS Capability: 0x%02x (%zu bytes)\n", + cap_type, cap_size); + if (cap_size == 0) + break; + if (cap_size > top - itr) { + dev_err(dev, "Device BUG? premature end of BOS data " + "[offset 0x%02x cap %02x %zu bytes]: " + "only %zu bytes left\n", + (int)(itr - (void *)bos), + cap_type, cap_size, top - itr); + result = -EBADF; + goto error_bad_cap; + } + d_dump(3, dev, itr, cap_size); + switch (cap_type) { + case USB_CAP_TYPE_WIRELESS_USB: + if (cap_size != sizeof(*wusb_dev->wusb_cap_descr)) + dev_err(dev, "Device BUG? WUSB Capability " + "descriptor is %zu bytes vs %zu " + "needed\n", cap_size, + sizeof(*wusb_dev->wusb_cap_descr)); + else { + wusb_dev->wusb_cap_descr = itr; + wusb_cap_descr_printf(3, dev, itr); + } + break; + default: + dev_err(dev, "BUG? Unknown BOS capability 0x%02x " + "(%zu bytes) at offset 0x%02x\n", cap_type, + cap_size, (int)(itr - (void *)bos)); + } + itr += cap_size; + } + result = 0; +error_bad_cap: + return result; +} + +/* + * Add information from the BOS descriptors to the device + * + * @usb_dev: referenced + * @wusb_dev: referenced and unlocked + * + * So what we do is we alloc a space for the BOS descriptor of 64 + * bytes; read the first four bytes which include the wTotalLength + * field (WUSB1.0[T7-26]) and if it fits in those 64 bytes, read the + * whole thing. If not we realloc to that size. + * + * Then we call the groking function, that will fill up + * wusb_dev->wusb_cap_descr, which is what we'll need later on. + */ +static int wusb_dev_bos_add(struct usb_device *usb_dev, + struct wusb_dev *wusb_dev) +{ + ssize_t result; + struct device *dev = &usb_dev->dev; + struct usb_bos_descriptor *bos; + size_t alloc_size = 32, desc_size = 4; + + bos = kmalloc(alloc_size, GFP_KERNEL); + if (bos == NULL) + return -ENOMEM; + result = usb_get_descriptor(usb_dev, USB_DT_BOS, 0, bos, desc_size); + if (result < 4) { + dev_err(dev, "Can't get BOS descriptor or too short: %zd\n", + result); + goto error_get_descriptor; + } + desc_size = le16_to_cpu(bos->wTotalLength); + if (desc_size >= alloc_size) { + kfree(bos); + alloc_size = desc_size; + bos = kmalloc(alloc_size, GFP_KERNEL); + if (bos == NULL) + return -ENOMEM; + } + result = usb_get_descriptor(usb_dev, USB_DT_BOS, 0, bos, desc_size); + if (result < 0 || result != desc_size) { + dev_err(dev, "Can't get BOS descriptor or too short (need " + "%zu bytes): %zd\n", desc_size, result); + goto error_get_descriptor; + } + if (result < sizeof(*bos) + || le16_to_cpu(bos->wTotalLength) != desc_size) { + dev_err(dev, "Can't get BOS descriptor or too short (need " + "%zu bytes): %zd\n", desc_size, result); + goto error_get_descriptor; + } + d_printf(2, dev, "Got BOS descriptor %zd bytes, %u capabilities\n", + result, bos->bNumDeviceCaps); + d_dump(2, dev, bos, result); + result = wusb_dev_bos_grok(usb_dev, wusb_dev, bos, result); + if (result < 0) + goto error_bad_bos; + wusb_dev->bos = bos; + return 0; + +error_bad_bos: +error_get_descriptor: + kfree(bos); + wusb_dev->wusb_cap_descr = NULL; + return result; +} + +static void wusb_dev_bos_rm(struct wusb_dev *wusb_dev) +{ + kfree(wusb_dev->bos); + wusb_dev->wusb_cap_descr = NULL; +}; + +static struct usb_wireless_cap_descriptor wusb_cap_descr_default = { + .bLength = sizeof(wusb_cap_descr_default), + .bDescriptorType = USB_DT_DEVICE_CAPABILITY, + .bDevCapabilityType = USB_CAP_TYPE_WIRELESS_USB, + + .bmAttributes = USB_WIRELESS_BEACON_NONE, + .wPHYRates = cpu_to_le16(USB_WIRELESS_PHY_53), + .bmTFITXPowerInfo = 0, + .bmFFITXPowerInfo = 0, + .bmBandGroup = cpu_to_le16(0x0001), /* WUSB1.0[7.4.1] bottom */ + .bReserved = 0 +}; + +/* + * USB stack's device addition Notifier Callback + * + * Called from drivers/usb/core/hub.c when a new device is added; we + * use this hook to perform certain WUSB specific setup work on the + * new device. As well, it is the first time we can connect the + * wusb_dev and the usb_dev. So we note it down in wusb_dev and take a + * reference that we'll drop. + * + * First we need to determine if the device is a WUSB device (else we + * ignore it). For that we use the speed setting (USB_SPEED_VARIABLE) + * [FIXME: maybe we'd need something more definitive]. If so, we track + * it's usb_busd and from there, the WUSB HC. + * + * Because all WUSB HCs are contained in a 'struct wusbhc', voila, we + * get the wusbhc for the device. + * + * We have a reference on @usb_dev (as we are called at the end of its + * enumeration). + * + * NOTE: @usb_dev locked + */ +static void wusb_dev_add_ncb(struct usb_device *usb_dev) +{ + int result = 0; + struct wusb_dev *wusb_dev; + struct wusbhc *wusbhc; + struct device *dev = &usb_dev->dev; + u8 port_idx; + + if (usb_dev->wusb == 0 || usb_dev->devnum == 1) + return; /* skip non wusb and wusb RHs */ + + d_fnstart(3, dev, "(usb_dev %p)\n", usb_dev); + + wusbhc = wusbhc_get_by_usb_dev(usb_dev); + if (wusbhc == NULL) + goto error_nodev; + mutex_lock(&wusbhc->mutex); + wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, usb_dev); + port_idx = wusb_port_no_to_idx(usb_dev->portnum); + mutex_unlock(&wusbhc->mutex); + if (wusb_dev == NULL) + goto error_nodev; + wusb_dev->usb_dev = usb_get_dev(usb_dev); + usb_dev->wusb_dev = wusb_dev_get(wusb_dev); + result = wusb_dev_sec_add(wusbhc, usb_dev, wusb_dev); + if (result < 0) { + dev_err(dev, "Cannot enable security: %d\n", result); + goto error_sec_add; + } + /* Now query the device for it's BOS and attach it to wusb_dev */ + result = wusb_dev_bos_add(usb_dev, wusb_dev); + if (result < 0) { + dev_err(dev, "Cannot get BOS descriptors: %d\n", result); + goto error_bos_add; + } + result = wusb_dev_sysfs_add(wusbhc, usb_dev, wusb_dev); + if (result < 0) + goto error_add_sysfs; +out: + wusb_dev_put(wusb_dev); + wusbhc_put(wusbhc); +error_nodev: + d_fnend(3, dev, "(usb_dev %p) = void\n", usb_dev); + return; + + wusb_dev_sysfs_rm(wusb_dev); +error_add_sysfs: + wusb_dev_bos_rm(wusb_dev); +error_bos_add: + wusb_dev_sec_rm(wusb_dev); +error_sec_add: + mutex_lock(&wusbhc->mutex); + __wusbhc_dev_disconnect(wusbhc, wusb_port_by_idx(wusbhc, port_idx)); + mutex_unlock(&wusbhc->mutex); + goto out; +} + +/* + * Undo all the steps done at connection by the notifier callback + * + * NOTE: @usb_dev locked + */ +static void wusb_dev_rm_ncb(struct usb_device *usb_dev) +{ + struct wusb_dev *wusb_dev = usb_dev->wusb_dev; + + if (usb_dev->wusb == 0 || usb_dev->devnum == 1) + return; /* skip non wusb and wusb RHs */ + + wusb_dev_sysfs_rm(wusb_dev); + wusb_dev_bos_rm(wusb_dev); + wusb_dev_sec_rm(wusb_dev); + wusb_dev->usb_dev = NULL; + usb_dev->wusb_dev = NULL; + wusb_dev_put(wusb_dev); + usb_put_dev(usb_dev); +} + +/* + * Handle notifications from the USB stack (notifier call back) + * + * This is called when the USB stack does a + * usb_{bus,device}_{add,remove}() so we can do WUSB specific + * handling. It is called with [for the case of + * USB_DEVICE_{ADD,REMOVE} with the usb_dev locked. + */ +int wusb_usb_ncb(struct notifier_block *nb, unsigned long val, + void *priv) +{ + int result = NOTIFY_OK; + + switch (val) { + case USB_DEVICE_ADD: + wusb_dev_add_ncb(priv); + break; + case USB_DEVICE_REMOVE: + wusb_dev_rm_ncb(priv); + break; + case USB_BUS_ADD: + /* ignore (for now) */ + case USB_BUS_REMOVE: + break; + default: + WARN_ON(1); + result = NOTIFY_BAD; + }; + return result; +} + +/* + * Return a referenced wusb_dev given a @wusbhc and @usb_dev + */ +struct wusb_dev *__wusb_dev_get_by_usb_dev(struct wusbhc *wusbhc, + struct usb_device *usb_dev) +{ + struct wusb_dev *wusb_dev; + u8 port_idx; + + port_idx = wusb_port_no_to_idx(usb_dev->portnum); + BUG_ON(port_idx > wusbhc->ports_max); + wusb_dev = wusb_port_by_idx(wusbhc, port_idx)->wusb_dev; + if (wusb_dev != NULL) /* ops, device is gone */ + wusb_dev_get(wusb_dev); + return wusb_dev; +} +EXPORT_SYMBOL_GPL(__wusb_dev_get_by_usb_dev); + +void wusb_dev_destroy(struct kref *_wusb_dev) +{ + struct wusb_dev *wusb_dev + = container_of(_wusb_dev, struct wusb_dev, refcnt); + list_del_init(&wusb_dev->cack_node); + wusb_dev_free(wusb_dev); + d_fnend(1, NULL, "%s (wusb_dev %p) = void\n", __func__, wusb_dev); +} +EXPORT_SYMBOL_GPL(wusb_dev_destroy); + +/* + * Create all the device connect handling infrastructure + * + * This is basically the device info array, Connect Acknowledgement + * (cack) lists, keep-alive timers (and delayed work thread). + */ +int wusbhc_devconnect_create(struct wusbhc *wusbhc) +{ + d_fnstart(3, wusbhc->dev, "(wusbhc %p)\n", wusbhc); + + wusbhc->keep_alive_ie.hdr.bIEIdentifier = WUIE_ID_KEEP_ALIVE; + wusbhc->keep_alive_ie.hdr.bLength = sizeof(wusbhc->keep_alive_ie.hdr); + INIT_DELAYED_WORK(&wusbhc->keep_alive_timer, wusbhc_keep_alive_run); + + wusbhc->cack_ie.hdr.bIEIdentifier = WUIE_ID_CONNECTACK; + wusbhc->cack_ie.hdr.bLength = sizeof(wusbhc->cack_ie.hdr); + INIT_LIST_HEAD(&wusbhc->cack_list); + + d_fnend(3, wusbhc->dev, "(wusbhc %p) = void\n", wusbhc); + return 0; +} + +/* + * Release all resources taken by the devconnect stuff + */ +void wusbhc_devconnect_destroy(struct wusbhc *wusbhc) +{ + d_fnstart(3, wusbhc->dev, "(wusbhc %p)\n", wusbhc); + d_fnend(3, wusbhc->dev, "(wusbhc %p) = void\n", wusbhc); +} + +/* + * wusbhc_devconnect_start - start accepting device connections + * @wusbhc: the WUSB HC + * + * Sets the Host Info IE to accept all new connections. + * + * FIXME: This also enables the keep alives but this is not necessary + * until there are connected and authenticated devices. + */ +int wusbhc_devconnect_start(struct wusbhc *wusbhc, + const struct wusb_ckhdid *chid) +{ + struct device *dev = wusbhc->dev; + struct wuie_host_info *hi; + int result; + + hi = kzalloc(sizeof(*hi), GFP_KERNEL); + if (hi == NULL) + return -ENOMEM; + + hi->hdr.bLength = sizeof(*hi); + hi->hdr.bIEIdentifier = WUIE_ID_HOST_INFO; + hi->connect_avail = WUIE_HI_CAP_ALL; + hi->p2p_drd = 0; + hi->stream_index = wusbhc->rsv->stream; + hi->CHID = *chid; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &hi->hdr); + if (result < 0) { + dev_err(dev, "Cannot add Host Info MMCIE: %d\n", result); + goto error_mmcie_set; + } + wusbhc->wuie_host_info = hi; + + queue_delayed_work(wusbd, &wusbhc->keep_alive_timer, + (wusbhc->trust_timeout*CONFIG_HZ)/1000/2); + + return 0; + +error_mmcie_set: + kfree(hi); + return result; +} + +/* + * wusbhc_devconnect_stop - stop managing connected devices + * @wusbhc: the WUSB HC + * + * Removes the Host Info IE and stops the keep alives. + * + * FIXME: should this disconnect all devices? + */ +void wusbhc_devconnect_stop(struct wusbhc *wusbhc) +{ + cancel_delayed_work_sync(&wusbhc->keep_alive_timer); + WARN_ON(!list_empty(&wusbhc->cack_list)); + + wusbhc_mmcie_rm(wusbhc, &wusbhc->wuie_host_info->hdr); + kfree(wusbhc->wuie_host_info); + wusbhc->wuie_host_info = NULL; +} + +/* + * wusb_set_dev_addr - set the WUSB device address used by the host + * @wusbhc: the WUSB HC the device is connect to + * @wusb_dev: the WUSB device + * @addr: new device address + */ +int wusb_set_dev_addr(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, u8 addr) +{ + int result; + + wusb_dev->addr = addr; + result = wusbhc->dev_info_set(wusbhc, wusb_dev); + if (result < 0) + dev_err(wusbhc->dev, "device %d: failed to set device " + "address\n", wusb_dev->port_idx); + else + dev_info(wusbhc->dev, "device %d: %s addr %u\n", + wusb_dev->port_idx, + (addr & WUSB_DEV_ADDR_UNAUTH) ? "unauth" : "auth", + wusb_dev->addr); + + return result; +} diff --git a/drivers/usb/wusbcore/mmc.c b/drivers/usb/wusbcore/mmc.c new file mode 100644 index 000000000000..e5390b77aaaa --- /dev/null +++ b/drivers/usb/wusbcore/mmc.c @@ -0,0 +1,329 @@ +/* + * WUSB Wire Adapter: Control/Data Streaming Interface (WUSB[8]) + * MMC (Microscheduled Management Command) handling + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * WUIEs and MMC IEs...well, they are almost the same at the end. MMC + * IEs are Wireless USB IEs that go into the MMC period...[what is + * that? look in Design-overview.txt]. + * + * + * This is a simple subsystem to keep track of which IEs are being + * sent by the host in the MMC period. + * + * For each WUIE we ask to send, we keep it in an array, so we can + * request its removal later, or replace the content. They are tracked + * by pointer, so be sure to use the same pointer if you want to + * remove it or update the contents. + * + * FIXME: + * - add timers that autoremove intervalled IEs? + */ +#include <linux/usb/wusb.h> +#include "wusbhc.h" + +/* Initialize the MMCIEs handling mechanism */ +int wusbhc_mmcie_create(struct wusbhc *wusbhc) +{ + u8 mmcies = wusbhc->mmcies_max; + wusbhc->mmcie = kzalloc(mmcies * sizeof(wusbhc->mmcie[0]), GFP_KERNEL); + if (wusbhc->mmcie == NULL) + return -ENOMEM; + mutex_init(&wusbhc->mmcie_mutex); + return 0; +} + +/* Release resources used by the MMCIEs handling mechanism */ +void wusbhc_mmcie_destroy(struct wusbhc *wusbhc) +{ + kfree(wusbhc->mmcie); +} + +/* + * Add or replace an MMC Wireless USB IE. + * + * @interval: See WUSB1.0[8.5.3.1] + * @repeat_cnt: See WUSB1.0[8.5.3.1] + * @handle: See WUSB1.0[8.5.3.1] + * @wuie: Pointer to the header of the WUSB IE data to add. + * MUST BE allocated in a kmalloc buffer (no stack or + * vmalloc). + * THE CALLER ALWAYS OWNS THE POINTER (we don't free it + * on remove, we just forget about it). + * @returns: 0 if ok, < 0 errno code on error. + * + * Goes over the *whole* @wusbhc->mmcie array looking for (a) the + * first free spot and (b) if @wuie is already in the array (aka: + * transmitted in the MMCs) the spot were it is. + * + * If present, we "overwrite it" (update). + * + * + * NOTE: Need special ordering rules -- see below WUSB1.0 Table 7-38. + * The host uses the handle as the 'sort' index. We + * allocate the last one always for the WUIE_ID_HOST_INFO, and + * the rest, first come first serve in inverse order. + * + * Host software must make sure that it adds the other IEs in + * the right order... the host hardware is responsible for + * placing the WCTA IEs in the right place with the other IEs + * set by host software. + * + * NOTE: we can access wusbhc->wa_descr without locking because it is + * read only. + */ +int wusbhc_mmcie_set(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + struct wuie_hdr *wuie) +{ + int result = -ENOBUFS; + struct device *dev = wusbhc->dev; + unsigned handle, itr; + + /* Search a handle, taking into account the ordering */ + mutex_lock(&wusbhc->mmcie_mutex); + switch (wuie->bIEIdentifier) { + case WUIE_ID_HOST_INFO: + /* Always last */ + handle = wusbhc->mmcies_max - 1; + break; + case WUIE_ID_ISOCH_DISCARD: + dev_err(wusbhc->dev, "Special ordering case for WUIE ID 0x%x " + "unimplemented\n", wuie->bIEIdentifier); + result = -ENOSYS; + goto error_unlock; + default: + /* search for it or find the last empty slot */ + handle = ~0; + for (itr = 0; itr < wusbhc->mmcies_max - 1; itr++) { + if (wusbhc->mmcie[itr] == wuie) { + handle = itr; + break; + } + if (wusbhc->mmcie[itr] == NULL) + handle = itr; + } + if (handle == ~0) { + if (printk_ratelimit()) + dev_err(dev, "MMC handle space exhausted\n"); + goto error_unlock; + } + } + result = (wusbhc->mmcie_add)(wusbhc, interval, repeat_cnt, handle, + wuie); + if (result >= 0) + wusbhc->mmcie[handle] = wuie; +error_unlock: + mutex_unlock(&wusbhc->mmcie_mutex); + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_mmcie_set); + +/* + * Remove an MMC IE previously added with wusbhc_mmcie_set() + * + * @wuie Pointer used to add the WUIE + */ +void wusbhc_mmcie_rm(struct wusbhc *wusbhc, struct wuie_hdr *wuie) +{ + int result; + struct device *dev = wusbhc->dev; + unsigned handle, itr; + + mutex_lock(&wusbhc->mmcie_mutex); + for (itr = 0; itr < wusbhc->mmcies_max; itr++) + if (wusbhc->mmcie[itr] == wuie) { + handle = itr; + goto found; + } + mutex_unlock(&wusbhc->mmcie_mutex); + return; + +found: + result = (wusbhc->mmcie_rm)(wusbhc, handle); + if (result == 0) + wusbhc->mmcie[itr] = NULL; + else if (printk_ratelimit()) + dev_err(dev, "MMC: Failed to remove IE %p (0x%02x)\n", + wuie, wuie->bIEIdentifier); + mutex_unlock(&wusbhc->mmcie_mutex); + return; +} +EXPORT_SYMBOL_GPL(wusbhc_mmcie_rm); + +/* + * wusbhc_start - start transmitting MMCs and accepting connections + * @wusbhc: the HC to start + * @chid: the CHID to use for this host + * + * Establishes a cluster reservation, enables device connections, and + * starts MMCs with appropriate DNTS parameters. + */ +int wusbhc_start(struct wusbhc *wusbhc, const struct wusb_ckhdid *chid) +{ + int result; + struct device *dev = wusbhc->dev; + + WARN_ON(wusbhc->wuie_host_info != NULL); + + result = wusbhc_rsv_establish(wusbhc); + if (result < 0) { + dev_err(dev, "cannot establish cluster reservation: %d\n", + result); + goto error_rsv_establish; + } + + result = wusbhc_devconnect_start(wusbhc, chid); + if (result < 0) { + dev_err(dev, "error enabling device connections: %d\n", result); + goto error_devconnect_start; + } + + result = wusbhc_sec_start(wusbhc); + if (result < 0) { + dev_err(dev, "error starting security in the HC: %d\n", result); + goto error_sec_start; + } + /* FIXME: the choice of the DNTS parameters is somewhat + * arbitrary */ + result = wusbhc->set_num_dnts(wusbhc, 0, 15); + if (result < 0) { + dev_err(dev, "Cannot set DNTS parameters: %d\n", result); + goto error_set_num_dnts; + } + result = wusbhc->start(wusbhc); + if (result < 0) { + dev_err(dev, "error starting wusbch: %d\n", result); + goto error_wusbhc_start; + } + wusbhc->active = 1; + return 0; + +error_wusbhc_start: + wusbhc_sec_stop(wusbhc); +error_set_num_dnts: +error_sec_start: + wusbhc_devconnect_stop(wusbhc); +error_devconnect_start: + wusbhc_rsv_terminate(wusbhc); +error_rsv_establish: + return result; +} + +/* + * Disconnect all from the WUSB Channel + * + * Send a Host Disconnect IE in the MMC, wait, don't send it any more + */ +static int __wusbhc_host_disconnect_ie(struct wusbhc *wusbhc) +{ + int result = -ENOMEM; + struct wuie_host_disconnect *host_disconnect_ie; + might_sleep(); + host_disconnect_ie = kmalloc(sizeof(*host_disconnect_ie), GFP_KERNEL); + if (host_disconnect_ie == NULL) + goto error_alloc; + host_disconnect_ie->hdr.bLength = sizeof(*host_disconnect_ie); + host_disconnect_ie->hdr.bIEIdentifier = WUIE_ID_HOST_DISCONNECT; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &host_disconnect_ie->hdr); + if (result < 0) + goto error_mmcie_set; + + /* WUSB1.0[8.5.3.1 & 7.5.2] */ + msleep(100); + wusbhc_mmcie_rm(wusbhc, &host_disconnect_ie->hdr); +error_mmcie_set: + kfree(host_disconnect_ie); +error_alloc: + return result; +} + +/* + * wusbhc_stop - stop transmitting MMCs + * @wusbhc: the HC to stop + * + * Send a Host Disconnect IE, wait, remove all the MMCs (stop sending MMCs). + * + * If we can't allocate a Host Stop IE, screw it, we don't notify the + * devices we are disconnecting... + */ +void wusbhc_stop(struct wusbhc *wusbhc) +{ + if (wusbhc->active) { + wusbhc->active = 0; + wusbhc->stop(wusbhc); + wusbhc_sec_stop(wusbhc); + __wusbhc_host_disconnect_ie(wusbhc); + wusbhc_devconnect_stop(wusbhc); + wusbhc_rsv_terminate(wusbhc); + } +} +EXPORT_SYMBOL_GPL(wusbhc_stop); + +/* + * Change the CHID in a WUSB Channel + * + * If it is just a new CHID, send a Host Disconnect IE and then change + * the CHID IE. + */ +static int __wusbhc_chid_change(struct wusbhc *wusbhc, + const struct wusb_ckhdid *chid) +{ + int result = -ENOSYS; + struct device *dev = wusbhc->dev; + dev_err(dev, "%s() not implemented yet\n", __func__); + return result; + + BUG_ON(wusbhc->wuie_host_info == NULL); + __wusbhc_host_disconnect_ie(wusbhc); + wusbhc->wuie_host_info->CHID = *chid; + result = wusbhc_mmcie_set(wusbhc, 0, 0, &wusbhc->wuie_host_info->hdr); + if (result < 0) + dev_err(dev, "Can't update Host Info WUSB IE: %d\n", result); + return result; +} + +/* + * Set/reset/update a new CHID + * + * Depending on the previous state of the MMCs, start, stop or change + * the sent MMC. This effectively switches the host controller on and + * off (radio wise). + */ +int wusbhc_chid_set(struct wusbhc *wusbhc, const struct wusb_ckhdid *chid) +{ + int result = 0; + + if (memcmp(chid, &wusb_ckhdid_zero, sizeof(chid)) == 0) + chid = NULL; + + mutex_lock(&wusbhc->mutex); + if (wusbhc->active) { + if (chid) + result = __wusbhc_chid_change(wusbhc, chid); + else + wusbhc_stop(wusbhc); + } else { + if (chid) + wusbhc_start(wusbhc, chid); + } + mutex_unlock(&wusbhc->mutex); + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_chid_set); diff --git a/drivers/usb/wusbcore/pal.c b/drivers/usb/wusbcore/pal.c new file mode 100644 index 000000000000..cc126b444734 --- /dev/null +++ b/drivers/usb/wusbcore/pal.c @@ -0,0 +1,39 @@ +/* + * Wireless USB Host Controller + * UWB Protocol Adaptation Layer (PAL) glue. + * + * Copyright (C) 2008 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include "wusbhc.h" + +/** + * wusbhc_pal_register - register the WUSB HC as a UWB PAL + * @wusbhc: the WUSB HC + */ +int wusbhc_pal_register(struct wusbhc *wusbhc) +{ + uwb_pal_init(&wusbhc->pal); + + return uwb_pal_register(wusbhc->uwb_rc, &wusbhc->pal); +} + +/** + * wusbhc_pal_register - unregister the WUSB HC as a UWB PAL + * @wusbhc: the WUSB HC + */ +void wusbhc_pal_unregister(struct wusbhc *wusbhc) +{ + uwb_pal_unregister(wusbhc->uwb_rc, &wusbhc->pal); +} diff --git a/drivers/usb/wusbcore/reservation.c b/drivers/usb/wusbcore/reservation.c new file mode 100644 index 000000000000..fc63e77ded2d --- /dev/null +++ b/drivers/usb/wusbcore/reservation.c @@ -0,0 +1,115 @@ +/* + * WUSB cluster reservation management + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/uwb.h> + +#include "wusbhc.h" + +/* + * WUSB cluster reservations are multicast reservations with the + * broadcast cluster ID (BCID) as the target DevAddr. + * + * FIXME: consider adjusting the reservation depending on what devices + * are attached. + */ + +static int wusbhc_bwa_set(struct wusbhc *wusbhc, u8 stream, + const struct uwb_mas_bm *mas) +{ + if (mas == NULL) + mas = &uwb_mas_bm_zero; + return wusbhc->bwa_set(wusbhc, stream, mas); +} + +/** + * wusbhc_rsv_complete_cb - WUSB HC reservation complete callback + * @rsv: the reservation + * + * Either set or clear the HC's view of the reservation. + * + * FIXME: when a reservation is denied the HC should be stopped. + */ +static void wusbhc_rsv_complete_cb(struct uwb_rsv *rsv) +{ + struct wusbhc *wusbhc = rsv->pal_priv; + struct device *dev = wusbhc->dev; + char buf[72]; + + switch (rsv->state) { + case UWB_RSV_STATE_O_ESTABLISHED: + bitmap_scnprintf(buf, sizeof(buf), rsv->mas.bm, UWB_NUM_MAS); + dev_dbg(dev, "established reservation: %s\n", buf); + wusbhc_bwa_set(wusbhc, rsv->stream, &rsv->mas); + break; + case UWB_RSV_STATE_NONE: + dev_dbg(dev, "removed reservation\n"); + wusbhc_bwa_set(wusbhc, 0, NULL); + wusbhc->rsv = NULL; + break; + default: + dev_dbg(dev, "unexpected reservation state: %d\n", rsv->state); + break; + } +} + + +/** + * wusbhc_rsv_establish - establish a reservation for the cluster + * @wusbhc: the WUSB HC requesting a bandwith reservation + */ +int wusbhc_rsv_establish(struct wusbhc *wusbhc) +{ + struct uwb_rc *rc = wusbhc->uwb_rc; + struct uwb_rsv *rsv; + struct uwb_dev_addr bcid; + int ret; + + rsv = uwb_rsv_create(rc, wusbhc_rsv_complete_cb, wusbhc); + if (rsv == NULL) + return -ENOMEM; + + bcid.data[0] = wusbhc->cluster_id; + bcid.data[1] = 0; + + rsv->owner = &rc->uwb_dev; + rsv->target.type = UWB_RSV_TARGET_DEVADDR; + rsv->target.devaddr = bcid; + rsv->type = UWB_DRP_TYPE_PRIVATE; + rsv->max_mas = 256; + rsv->min_mas = 16; /* one MAS per zone? */ + rsv->sparsity = 16; /* at least one MAS in each zone? */ + rsv->is_multicast = true; + + ret = uwb_rsv_establish(rsv); + if (ret == 0) + wusbhc->rsv = rsv; + else + uwb_rsv_destroy(rsv); + return ret; +} + + +/** + * wusbhc_rsv_terminate - terminate any cluster reservation + * @wusbhc: the WUSB host whose reservation is to be terminated + */ +void wusbhc_rsv_terminate(struct wusbhc *wusbhc) +{ + if (wusbhc->rsv) + uwb_rsv_terminate(wusbhc->rsv); +} diff --git a/drivers/usb/wusbcore/rh.c b/drivers/usb/wusbcore/rh.c new file mode 100644 index 000000000000..9ae36dfb0750 --- /dev/null +++ b/drivers/usb/wusbcore/rh.c @@ -0,0 +1,477 @@ +/* + * Wireless USB Host Controller + * Root Hub operations + * + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * We fake a root hub that has fake ports (as many as simultaneous + * devices the Wireless USB Host Controller can deal with). For each + * port we keep an state in @wusbhc->port[index] identical to the one + * specified in the USB2.0[ch11] spec and some extra device + * information that complements the one in 'struct usb_device' (as + * this lacs a hcpriv pointer). + * + * Note this is common to WHCI and HWA host controllers. + * + * Through here we enable most of the state changes that the USB stack + * will use to connect or disconnect devices. We need to do some + * forced adaptation of Wireless USB device states vs. wired: + * + * USB: WUSB: + * + * Port Powered-off port slot n/a + * Powered-on port slot available + * Disconnected port slot available + * Connected port slot assigned device + * device sent DN_Connect + * device was authenticated + * Enabled device is authenticated, transitioned + * from unauth -> auth -> default address + * -> enabled + * Reset disconnect + * Disable disconnect + * + * This maps the standard USB port states with the WUSB device states + * so we can fake ports without having to modify the USB stack. + * + * FIXME: this process will change in the future + * + * + * ENTRY POINTS + * + * Our entry points into here are, as in hcd.c, the USB stack root hub + * ops defined in the usb_hcd struct: + * + * wusbhc_rh_status_data() Provide hub and port status data bitmap + * + * wusbhc_rh_control() Execution of all the major requests + * you can do to a hub (Set|Clear + * features, get descriptors, status, etc). + * + * wusbhc_rh_[suspend|resume]() That + * + * wusbhc_rh_start_port_reset() ??? unimplemented + */ +#include "wusbhc.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +/* + * Reset a fake port + * + * This can be called to reset a port from any other state or to reset + * it when connecting. In Wireless USB they are different; when doing + * a new connect that involves going over the authentication. When + * just reseting, its a different story. + * + * The Linux USB stack resets a port twice before it considers it + * enabled, so we have to detect and ignore that. + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + * + * Supposedly we are the only thread accesing @wusbhc->port; in any + * case, maybe we should move the mutex locking from + * wusbhc_devconnect_auth() to here. + * + * @port_idx refers to the wusbhc's port index, not the USB port number + */ +static int wusbhc_rh_port_reset(struct wusbhc *wusbhc, u8 port_idx) +{ + int result = 0; + struct wusb_port *port = wusb_port_by_idx(wusbhc, port_idx); + + d_fnstart(3, wusbhc->dev, "(wusbhc %p port_idx %u)\n", + wusbhc, port_idx); + if (port->reset_count == 0) { + wusbhc_devconnect_auth(wusbhc, port_idx); + port->reset_count++; + } else if (port->reset_count == 1) + /* see header */ + d_printf(2, wusbhc->dev, "Ignoring second reset on port_idx " + "%u\n", port_idx); + else + result = wusbhc_dev_reset(wusbhc, port_idx); + d_fnend(3, wusbhc->dev, "(wusbhc %p port_idx %u) = %d\n", + wusbhc, port_idx, result); + return result; +} + +/* + * Return the hub change status bitmap + * + * The bits in the change status bitmap are cleared when a + * ClearPortFeature request is issued (USB2.0[11.12.3,11.12.4]. + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + * + * WARNING!! This gets called from atomic context; we cannot get the + * mutex--the only race condition we can find is some bit + * changing just after we copy it, which shouldn't be too + * big of a problem [and we can't make it an spinlock + * because other parts need to take it and sleep] . + * + * @usb_hcd is refcounted, so it won't dissapear under us + * and before killing a host, the polling of the root hub + * would be stopped anyway. + */ +int wusbhc_rh_status_data(struct usb_hcd *usb_hcd, char *_buf) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + size_t cnt, size; + unsigned long *buf = (unsigned long *) _buf; + + d_fnstart(1, wusbhc->dev, "(wusbhc %p)\n", wusbhc); + /* WE DON'T LOCK, see comment */ + size = wusbhc->ports_max + 1 /* hub bit */; + size = (size + 8 - 1) / 8; /* round to bytes */ + for (cnt = 0; cnt < wusbhc->ports_max; cnt++) + if (wusb_port_by_idx(wusbhc, cnt)->change) + set_bit(cnt + 1, buf); + else + clear_bit(cnt + 1, buf); + d_fnend(1, wusbhc->dev, "(wusbhc %p) %u, buffer:\n", wusbhc, (int)size); + d_dump(1, wusbhc->dev, _buf, size); + return size; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_status_data); + +/* + * Return the hub's desciptor + * + * NOTE: almost cut and paste from ehci-hub.c + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked + */ +static int wusbhc_rh_get_hub_descr(struct wusbhc *wusbhc, u16 wValue, + u16 wIndex, + struct usb_hub_descriptor *descr, + u16 wLength) +{ + u16 temp = 1 + (wusbhc->ports_max / 8); + u8 length = 7 + 2 * temp; + + if (wLength < length) + return -ENOSPC; + descr->bDescLength = 7 + 2 * temp; + descr->bDescriptorType = 0x29; /* HUB type */ + descr->bNbrPorts = wusbhc->ports_max; + descr->wHubCharacteristics = cpu_to_le16( + 0x00 /* All ports power at once */ + | 0x00 /* not part of compound device */ + | 0x10 /* No overcurrent protection */ + | 0x00 /* 8 FS think time FIXME ?? */ + | 0x00); /* No port indicators */ + descr->bPwrOn2PwrGood = 0; + descr->bHubContrCurrent = 0; + /* two bitmaps: ports removable, and usb 1.0 legacy PortPwrCtrlMask */ + memset(&descr->bitmap [0], 0, temp); + memset(&descr->bitmap [temp], 0xff, temp); + return 0; +} + +/* + * Clear a hub feature + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + * + * Nothing to do, so no locking needed ;) + */ +static int wusbhc_rh_clear_hub_feat(struct wusbhc *wusbhc, u16 feature) +{ + int result; + struct device *dev = wusbhc->dev; + + d_fnstart(4, dev, "(%p, feature 0x%04u)\n", wusbhc, feature); + switch (feature) { + case C_HUB_LOCAL_POWER: + /* FIXME: maybe plug bit 0 to the power input status, + * if any? + * see wusbhc_rh_get_hub_status() */ + case C_HUB_OVER_CURRENT: + result = 0; + break; + default: + result = -EPIPE; + } + d_fnend(4, dev, "(%p, feature 0x%04u), %d\n", wusbhc, feature, result); + return result; +} + +/* + * Return hub status (it is always zero...) + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + * + * Nothing to do, so no locking needed ;) + */ +static int wusbhc_rh_get_hub_status(struct wusbhc *wusbhc, u32 *buf, + u16 wLength) +{ + /* FIXME: maybe plug bit 0 to the power input status (if any)? */ + *buf = 0; + return 0; +} + +/* + * Set a port feature + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + */ +static int wusbhc_rh_set_port_feat(struct wusbhc *wusbhc, u16 feature, + u8 selector, u8 port_idx) +{ + int result = -EINVAL; + struct device *dev = wusbhc->dev; + + d_fnstart(4, dev, "(feat 0x%04u, selector 0x%u, port_idx %d)\n", + feature, selector, port_idx); + + if (port_idx > wusbhc->ports_max) + goto error; + + switch (feature) { + /* According to USB2.0[11.24.2.13]p2, these features + * are not required to be implemented. */ + case USB_PORT_FEAT_C_OVER_CURRENT: + case USB_PORT_FEAT_C_ENABLE: + case USB_PORT_FEAT_C_SUSPEND: + case USB_PORT_FEAT_C_CONNECTION: + case USB_PORT_FEAT_C_RESET: + result = 0; + break; + + case USB_PORT_FEAT_POWER: + /* No such thing, but we fake it works */ + mutex_lock(&wusbhc->mutex); + wusb_port_by_idx(wusbhc, port_idx)->power = 1; + mutex_unlock(&wusbhc->mutex); + result = 0; + break; + case USB_PORT_FEAT_RESET: + result = wusbhc_rh_port_reset(wusbhc, port_idx); + break; + case USB_PORT_FEAT_ENABLE: + case USB_PORT_FEAT_SUSPEND: + dev_err(dev, "(port_idx %d) set feat %d/%d UNIMPLEMENTED\n", + port_idx, feature, selector); + result = -ENOSYS; + break; + default: + dev_err(dev, "(port_idx %d) set feat %d/%d UNKNOWN\n", + port_idx, feature, selector); + result = -EPIPE; + break; + } +error: + d_fnend(4, dev, "(feat 0x%04u, selector 0x%u, port_idx %d) = %d\n", + feature, selector, port_idx, result); + return result; +} + +/* + * Clear a port feature... + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + */ +static int wusbhc_rh_clear_port_feat(struct wusbhc *wusbhc, u16 feature, + u8 selector, u8 port_idx) +{ + int result = -EINVAL; + struct device *dev = wusbhc->dev; + + d_fnstart(4, dev, "(wusbhc %p feat 0x%04x selector %d port_idx %d)\n", + wusbhc, feature, selector, port_idx); + + if (port_idx > wusbhc->ports_max) + goto error; + + mutex_lock(&wusbhc->mutex); + result = 0; + switch (feature) { + case USB_PORT_FEAT_POWER: /* fake port always on */ + /* According to USB2.0[11.24.2.7.1.4], no need to implement? */ + case USB_PORT_FEAT_C_OVER_CURRENT: + break; + case USB_PORT_FEAT_C_RESET: + wusb_port_by_idx(wusbhc, port_idx)->c_reset = 0; + break; + case USB_PORT_FEAT_C_CONNECTION: + wusb_port_by_idx(wusbhc, port_idx)->c_connection = 0; + break; + case USB_PORT_FEAT_ENABLE: + __wusbhc_dev_disable(wusbhc, port_idx); + break; + case USB_PORT_FEAT_C_ENABLE: + wusb_port_by_idx(wusbhc, port_idx)->c_enable = 0; + break; + case USB_PORT_FEAT_SUSPEND: + case USB_PORT_FEAT_C_SUSPEND: + case 0xffff: /* ??? FIXME */ + dev_err(dev, "(port_idx %d) Clear feat %d/%d UNIMPLEMENTED\n", + port_idx, feature, selector); + /* dump_stack(); */ + result = -ENOSYS; + break; + default: + dev_err(dev, "(port_idx %d) Clear feat %d/%d UNKNOWN\n", + port_idx, feature, selector); + result = -EPIPE; + break; + } + mutex_unlock(&wusbhc->mutex); +error: + d_fnend(4, dev, "(wusbhc %p feat 0x%04x selector %d port_idx %d) = " + "%d\n", wusbhc, feature, selector, port_idx, result); + return result; +} + +/* + * Return the port's status + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + */ +static int wusbhc_rh_get_port_status(struct wusbhc *wusbhc, u16 port_idx, + u32 *_buf, u16 wLength) +{ + int result = -EINVAL; + u16 *buf = (u16 *) _buf; + + d_fnstart(1, wusbhc->dev, "(wusbhc %p port_idx %u wLength %u)\n", + wusbhc, port_idx, wLength); + if (port_idx > wusbhc->ports_max) + goto error; + mutex_lock(&wusbhc->mutex); + buf[0] = cpu_to_le16(wusb_port_by_idx(wusbhc, port_idx)->status); + buf[1] = cpu_to_le16(wusb_port_by_idx(wusbhc, port_idx)->change); + result = 0; + mutex_unlock(&wusbhc->mutex); +error: + d_fnend(1, wusbhc->dev, "(wusbhc %p) = %d, buffer:\n", wusbhc, result); + d_dump(1, wusbhc->dev, _buf, wLength); + return result; +} + +/* + * Entry point for Root Hub operations + * + * @wusbhc is assumed referenced and @wusbhc->mutex unlocked. + */ +int wusbhc_rh_control(struct usb_hcd *usb_hcd, u16 reqntype, u16 wValue, + u16 wIndex, char *buf, u16 wLength) +{ + int result = -ENOSYS; + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + + switch (reqntype) { + case GetHubDescriptor: + result = wusbhc_rh_get_hub_descr( + wusbhc, wValue, wIndex, + (struct usb_hub_descriptor *) buf, wLength); + break; + case ClearHubFeature: + result = wusbhc_rh_clear_hub_feat(wusbhc, wValue); + break; + case GetHubStatus: + result = wusbhc_rh_get_hub_status(wusbhc, (u32 *)buf, wLength); + break; + + case SetPortFeature: + result = wusbhc_rh_set_port_feat(wusbhc, wValue, wIndex >> 8, + (wIndex & 0xff) - 1); + break; + case ClearPortFeature: + result = wusbhc_rh_clear_port_feat(wusbhc, wValue, wIndex >> 8, + (wIndex & 0xff) - 1); + break; + case GetPortStatus: + result = wusbhc_rh_get_port_status(wusbhc, wIndex - 1, + (u32 *)buf, wLength); + break; + + case SetHubFeature: + default: + dev_err(wusbhc->dev, "%s (%p [%p], %x, %x, %x, %p, %x) " + "UNIMPLEMENTED\n", __func__, usb_hcd, wusbhc, reqntype, + wValue, wIndex, buf, wLength); + /* dump_stack(); */ + result = -ENOSYS; + } + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_control); + +int wusbhc_rh_suspend(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, wusbhc); + /* dump_stack(); */ + return -ENOSYS; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_suspend); + +int wusbhc_rh_resume(struct usb_hcd *usb_hcd) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, + usb_hcd, wusbhc); + /* dump_stack(); */ + return -ENOSYS; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_resume); + +int wusbhc_rh_start_port_reset(struct usb_hcd *usb_hcd, unsigned port_idx) +{ + struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); + dev_err(wusbhc->dev, "%s (%p [%p], port_idx %u) UNIMPLEMENTED\n", + __func__, usb_hcd, wusbhc, port_idx); + WARN_ON(1); + return -ENOSYS; +} +EXPORT_SYMBOL_GPL(wusbhc_rh_start_port_reset); + +static void wusb_port_init(struct wusb_port *port) +{ + port->high_speed = 1; +} + +/* + * Alloc fake port specific fields and status. + */ +int wusbhc_rh_create(struct wusbhc *wusbhc) +{ + int result = -ENOMEM; + size_t port_size, itr; + port_size = wusbhc->ports_max * sizeof(wusbhc->port[0]); + wusbhc->port = kzalloc(port_size, GFP_KERNEL); + if (wusbhc->port == NULL) + goto error_port_alloc; + for (itr = 0; itr < wusbhc->ports_max; itr++) + wusb_port_init(&wusbhc->port[itr]); + result = 0; +error_port_alloc: + return result; +} + +void wusbhc_rh_destroy(struct wusbhc *wusbhc) +{ + kfree(wusbhc->port); +} diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c new file mode 100644 index 000000000000..0c88fd3ce0c2 --- /dev/null +++ b/drivers/usb/wusbcore/security.c @@ -0,0 +1,644 @@ +/* + * Wireless USB Host Controller + * Security support: encryption enablement, etc + * + * Copyright (C) 2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ +#include <linux/types.h> +#include <linux/usb/ch9.h> +#include <linux/random.h> +#include "wusbhc.h" + +/* + * DEBUG & SECURITY WARNING!!!! + * + * If you enable this past 1, the debug code will weaken the + * cryptographic safety of the system (on purpose, for debugging). + * + * Weaken means: + * we print secret keys and intermediate values all the way, + */ +#undef D_LOCAL +#define D_LOCAL 2 +#include <linux/uwb/debug.h> + +static void wusbhc_set_gtk_callback(struct urb *urb); +static void wusbhc_gtk_rekey_done_work(struct work_struct *work); + +int wusbhc_sec_create(struct wusbhc *wusbhc) +{ + wusbhc->gtk.descr.bLength = sizeof(wusbhc->gtk.descr) + sizeof(wusbhc->gtk.data); + wusbhc->gtk.descr.bDescriptorType = USB_DT_KEY; + wusbhc->gtk.descr.bReserved = 0; + + wusbhc->gtk_index.index = 0; + wusbhc->gtk_index.type = WUSB_KEY_INDEX_TYPE_GTK; + wusbhc->gtk_index.originator = WUSB_KEY_INDEX_ORIGINATOR_HOST; + + INIT_WORK(&wusbhc->gtk_rekey_done_work, wusbhc_gtk_rekey_done_work); + + return 0; +} + + +/* Called when the HC is destroyed */ +void wusbhc_sec_destroy(struct wusbhc *wusbhc) +{ +} + + +/** + * wusbhc_next_tkid - generate a new, currently unused, TKID + * @wusbhc: the WUSB host controller + * @wusb_dev: the device whose PTK the TKID is for + * (or NULL for a TKID for a GTK) + * + * The generated TKID consist of two parts: the device's authenicated + * address (or 0 or a GTK); and an incrementing number. This ensures + * that TKIDs cannot be shared between devices and by the time the + * incrementing number wraps around the older TKIDs will no longer be + * in use (a maximum of two keys may be active at any one time). + */ +static u32 wusbhc_next_tkid(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + u32 *tkid; + u32 addr; + + if (wusb_dev == NULL) { + tkid = &wusbhc->gtk_tkid; + addr = 0; + } else { + tkid = &wusb_port_by_idx(wusbhc, wusb_dev->port_idx)->ptk_tkid; + addr = wusb_dev->addr & 0x7f; + } + + *tkid = (addr << 8) | ((*tkid + 1) & 0xff); + + return *tkid; +} + +static void wusbhc_generate_gtk(struct wusbhc *wusbhc) +{ + const size_t key_size = sizeof(wusbhc->gtk.data); + u32 tkid; + + tkid = wusbhc_next_tkid(wusbhc, NULL); + + wusbhc->gtk.descr.tTKID[0] = (tkid >> 0) & 0xff; + wusbhc->gtk.descr.tTKID[1] = (tkid >> 8) & 0xff; + wusbhc->gtk.descr.tTKID[2] = (tkid >> 16) & 0xff; + + get_random_bytes(wusbhc->gtk.descr.bKeyData, key_size); +} + +/** + * wusbhc_sec_start - start the security management process + * @wusbhc: the WUSB host controller + * + * Generate and set an initial GTK on the host controller. + * + * Called when the HC is started. + */ +int wusbhc_sec_start(struct wusbhc *wusbhc) +{ + const size_t key_size = sizeof(wusbhc->gtk.data); + int result; + + wusbhc_generate_gtk(wusbhc); + + result = wusbhc->set_gtk(wusbhc, wusbhc->gtk_tkid, + &wusbhc->gtk.descr.bKeyData, key_size); + if (result < 0) + dev_err(wusbhc->dev, "cannot set GTK for the host: %d\n", + result); + + return result; +} + +/** + * wusbhc_sec_stop - stop the security management process + * @wusbhc: the WUSB host controller + * + * Wait for any pending GTK rekeys to stop. + */ +void wusbhc_sec_stop(struct wusbhc *wusbhc) +{ + cancel_work_sync(&wusbhc->gtk_rekey_done_work); +} + + +/** @returns encryption type name */ +const char *wusb_et_name(u8 x) +{ + switch (x) { + case USB_ENC_TYPE_UNSECURE: return "unsecure"; + case USB_ENC_TYPE_WIRED: return "wired"; + case USB_ENC_TYPE_CCM_1: return "CCM-1"; + case USB_ENC_TYPE_RSA_1: return "RSA-1"; + default: return "unknown"; + } +} +EXPORT_SYMBOL_GPL(wusb_et_name); + +/* + * Set the device encryption method + * + * We tell the device which encryption method to use; we do this when + * setting up the device's security. + */ +static int wusb_dev_set_encryption(struct usb_device *usb_dev, int value) +{ + int result; + struct device *dev = &usb_dev->dev; + struct wusb_dev *wusb_dev = usb_dev->wusb_dev; + + if (value) { + value = wusb_dev->ccm1_etd.bEncryptionValue; + } else { + /* FIXME: should be wusb_dev->etd[UNSECURE].bEncryptionValue */ + value = 0; + } + /* Set device's */ + result = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_ENCRYPTION, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + value, 0, NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "Can't set device's WUSB encryption to " + "%s (value %d): %d\n", + wusb_et_name(wusb_dev->ccm1_etd.bEncryptionType), + wusb_dev->ccm1_etd.bEncryptionValue, result); + return result; +} + +/* + * Set the GTK to be used by a device. + * + * The device must be authenticated. + */ +static int wusb_dev_set_gtk(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev) +{ + struct usb_device *usb_dev = wusb_dev->usb_dev; + + return usb_control_msg( + usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_DESCRIPTOR, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + USB_DT_KEY << 8 | wusbhc->gtk_index.value, 0, + &wusbhc->gtk.descr, wusbhc->gtk.descr.bLength, + 1000); +} + + +/* FIXME: prototype for adding security */ +int wusb_dev_sec_add(struct wusbhc *wusbhc, + struct usb_device *usb_dev, struct wusb_dev *wusb_dev) +{ + int result, bytes, secd_size; + struct device *dev = &usb_dev->dev; + struct usb_security_descriptor secd; + const struct usb_encryption_descriptor *etd, *ccm1_etd = NULL; + void *secd_buf; + const void *itr, *top; + char buf[64]; + + d_fnstart(3, dev, "(usb_dev %p, wusb_dev %p)\n", usb_dev, wusb_dev); + result = usb_get_descriptor(usb_dev, USB_DT_SECURITY, + 0, &secd, sizeof(secd)); + if (result < sizeof(secd)) { + dev_err(dev, "Can't read security descriptor or " + "not enough data: %d\n", result); + goto error_secd; + } + secd_size = le16_to_cpu(secd.wTotalLength); + d_printf(5, dev, "got %d bytes of sec descriptor, total is %d\n", + result, secd_size); + secd_buf = kmalloc(secd_size, GFP_KERNEL); + if (secd_buf == NULL) { + dev_err(dev, "Can't allocate space for security descriptors\n"); + goto error_secd_alloc; + } + result = usb_get_descriptor(usb_dev, USB_DT_SECURITY, + 0, secd_buf, secd_size); + if (result < secd_size) { + dev_err(dev, "Can't read security descriptor or " + "not enough data: %d\n", result); + goto error_secd_all; + } + d_printf(5, dev, "got %d bytes of sec descriptors\n", result); + bytes = 0; + itr = secd_buf + sizeof(secd); + top = secd_buf + result; + while (itr < top) { + etd = itr; + if (top - itr < sizeof(*etd)) { + dev_err(dev, "BUG: bad device security descriptor; " + "not enough data (%zu vs %zu bytes left)\n", + top - itr, sizeof(*etd)); + break; + } + if (etd->bLength < sizeof(*etd)) { + dev_err(dev, "BUG: bad device encryption descriptor; " + "descriptor is too short " + "(%u vs %zu needed)\n", + etd->bLength, sizeof(*etd)); + break; + } + itr += etd->bLength; + bytes += snprintf(buf + bytes, sizeof(buf) - bytes, + "%s (0x%02x/%02x) ", + wusb_et_name(etd->bEncryptionType), + etd->bEncryptionValue, etd->bAuthKeyIndex); + if (etd->bEncryptionType == USB_ENC_TYPE_CCM_1) + ccm1_etd = etd; + } + /* This code only supports CCM1 as of now. */ + /* FIXME: user has to choose which sec mode to use? + * In theory we want CCM */ + if (ccm1_etd == NULL) { + dev_err(dev, "WUSB device doesn't support CCM1 encryption, " + "can't use!\n"); + result = -EINVAL; + goto error_no_ccm1; + } + wusb_dev->ccm1_etd = *ccm1_etd; + dev_info(dev, "supported encryption: %s; using %s (0x%02x/%02x)\n", + buf, wusb_et_name(ccm1_etd->bEncryptionType), + ccm1_etd->bEncryptionValue, ccm1_etd->bAuthKeyIndex); + result = 0; + kfree(secd_buf); +out: + d_fnend(3, dev, "(usb_dev %p, wusb_dev %p) = %d\n", + usb_dev, wusb_dev, result); + return result; + + +error_no_ccm1: +error_secd_all: + kfree(secd_buf); +error_secd_alloc: +error_secd: + goto out; +} + +void wusb_dev_sec_rm(struct wusb_dev *wusb_dev) +{ + /* Nothing so far */ +} + +static void hs_printk(unsigned level, struct device *dev, + struct usb_handshake *hs) +{ + d_printf(level, dev, + " bMessageNumber: %u\n" + " bStatus: %u\n" + " tTKID: %02x %02x %02x\n" + " CDID: %02x %02x %02x %02x %02x %02x %02x %02x\n" + " %02x %02x %02x %02x %02x %02x %02x %02x\n" + " nonce: %02x %02x %02x %02x %02x %02x %02x %02x\n" + " %02x %02x %02x %02x %02x %02x %02x %02x\n" + " MIC: %02x %02x %02x %02x %02x %02x %02x %02x\n", + hs->bMessageNumber, hs->bStatus, + hs->tTKID[2], hs->tTKID[1], hs->tTKID[0], + hs->CDID[0], hs->CDID[1], hs->CDID[2], hs->CDID[3], + hs->CDID[4], hs->CDID[5], hs->CDID[6], hs->CDID[7], + hs->CDID[8], hs->CDID[9], hs->CDID[10], hs->CDID[11], + hs->CDID[12], hs->CDID[13], hs->CDID[14], hs->CDID[15], + hs->nonce[0], hs->nonce[1], hs->nonce[2], hs->nonce[3], + hs->nonce[4], hs->nonce[5], hs->nonce[6], hs->nonce[7], + hs->nonce[8], hs->nonce[9], hs->nonce[10], hs->nonce[11], + hs->nonce[12], hs->nonce[13], hs->nonce[14], hs->nonce[15], + hs->MIC[0], hs->MIC[1], hs->MIC[2], hs->MIC[3], + hs->MIC[4], hs->MIC[5], hs->MIC[6], hs->MIC[7]); +} + +/** + * Update the address of an unauthenticated WUSB device + * + * Once we have successfully authenticated, we take it to addr0 state + * and then to a normal address. + * + * Before the device's address (as known by it) was usb_dev->devnum | + * 0x80 (unauthenticated address). With this we update it to usb_dev->devnum. + */ +static int wusb_dev_update_address(struct wusbhc *wusbhc, + struct wusb_dev *wusb_dev) +{ + int result = -ENOMEM; + struct usb_device *usb_dev = wusb_dev->usb_dev; + struct device *dev = &usb_dev->dev; + u8 new_address = wusb_dev->addr & 0x7F; + + /* Set address 0 */ + result = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_ADDRESS, 0, + 0, 0, NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "auth failed: can't set address 0: %d\n", + result); + goto error_addr0; + } + result = wusb_set_dev_addr(wusbhc, wusb_dev, 0); + if (result < 0) + goto error_addr0; + usb_ep0_reinit(usb_dev); + + /* Set new (authenticated) address. */ + result = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_ADDRESS, 0, + new_address, 0, NULL, 0, + 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "auth failed: can't set address %u: %d\n", + new_address, result); + goto error_addr; + } + result = wusb_set_dev_addr(wusbhc, wusb_dev, new_address); + if (result < 0) + goto error_addr; + usb_ep0_reinit(usb_dev); + usb_dev->authenticated = 1; +error_addr: +error_addr0: + return result; +} + +/* + * + * + */ +/* FIXME: split and cleanup */ +int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, + struct wusb_ckhdid *chid, struct wusb_ckhdid *cdid, + struct wusb_ckhdid *ck) +{ + int result = -ENOMEM; + struct usb_device *usb_dev = wusb_dev->usb_dev; + struct device *dev = &usb_dev->dev; + u32 tkid; + __le32 tkid_le; + struct usb_handshake *hs; + struct aes_ccm_nonce ccm_n; + u8 mic[8]; + struct wusb_keydvt_in keydvt_in; + struct wusb_keydvt_out keydvt_out; + + hs = kzalloc(3*sizeof(hs[0]), GFP_KERNEL); + if (hs == NULL) { + dev_err(dev, "can't allocate handshake data\n"); + goto error_kzalloc; + } + + /* We need to turn encryption before beginning the 4way + * hshake (WUSB1.0[.3.2.2]) */ + result = wusb_dev_set_encryption(usb_dev, 1); + if (result < 0) + goto error_dev_set_encryption; + + tkid = wusbhc_next_tkid(wusbhc, wusb_dev); + tkid_le = cpu_to_le32(tkid); + + hs[0].bMessageNumber = 1; + hs[0].bStatus = 0; + memcpy(hs[0].tTKID, &tkid_le, sizeof(hs[0].tTKID)); + hs[0].bReserved = 0; + memcpy(hs[0].CDID, cdid, sizeof(hs[0].CDID)); + get_random_bytes(&hs[0].nonce, sizeof(hs[0].nonce)); + memset(hs[0].MIC, 0, sizeof(hs[0].MIC)); /* Per WUSB1.0[T7-22] */ + + d_printf(1, dev, "I: sending hs1:\n"); + hs_printk(2, dev, &hs[0]); + + result = usb_control_msg( + usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_HANDSHAKE, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + 1, 0, &hs[0], sizeof(hs[0]), 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Handshake1: request failed: %d\n", result); + goto error_hs1; + } + + /* Handshake 2, from the device -- need to verify fields */ + result = usb_control_msg( + usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_GET_HANDSHAKE, + USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + 2, 0, &hs[1], sizeof(hs[1]), 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Handshake2: request failed: %d\n", result); + goto error_hs2; + } + d_printf(1, dev, "got HS2:\n"); + hs_printk(2, dev, &hs[1]); + + result = -EINVAL; + if (hs[1].bMessageNumber != 2) { + dev_err(dev, "Handshake2 failed: bad message number %u\n", + hs[1].bMessageNumber); + goto error_hs2; + } + if (hs[1].bStatus != 0) { + dev_err(dev, "Handshake2 failed: bad status %u\n", + hs[1].bStatus); + goto error_hs2; + } + if (memcmp(hs[0].tTKID, hs[1].tTKID, sizeof(hs[0].tTKID))) { + dev_err(dev, "Handshake2 failed: TKID mismatch " + "(#1 0x%02x%02x%02x vs #2 0x%02x%02x%02x)\n", + hs[0].tTKID[0], hs[0].tTKID[1], hs[0].tTKID[2], + hs[1].tTKID[0], hs[1].tTKID[1], hs[1].tTKID[2]); + goto error_hs2; + } + if (memcmp(hs[0].CDID, hs[1].CDID, sizeof(hs[0].CDID))) { + dev_err(dev, "Handshake2 failed: CDID mismatch\n"); + goto error_hs2; + } + + /* Setup the CCM nonce */ + memset(&ccm_n.sfn, 0, sizeof(ccm_n.sfn)); /* Per WUSB1.0[6.5.2] */ + memcpy(ccm_n.tkid, &tkid_le, sizeof(ccm_n.tkid)); + ccm_n.src_addr = wusbhc->uwb_rc->uwb_dev.dev_addr; + ccm_n.dest_addr.data[0] = wusb_dev->addr; + ccm_n.dest_addr.data[1] = 0; + + /* Derive the KCK and PTK from CK, the CCM, H and D nonces */ + memcpy(keydvt_in.hnonce, hs[0].nonce, sizeof(keydvt_in.hnonce)); + memcpy(keydvt_in.dnonce, hs[1].nonce, sizeof(keydvt_in.dnonce)); + result = wusb_key_derive(&keydvt_out, ck->data, &ccm_n, &keydvt_in); + if (result < 0) { + dev_err(dev, "Handshake2 failed: cannot derive keys: %d\n", + result); + goto error_hs2; + } + d_printf(2, dev, "KCK:\n"); + d_dump(2, dev, keydvt_out.kck, sizeof(keydvt_out.kck)); + d_printf(2, dev, "PTK:\n"); + d_dump(2, dev, keydvt_out.ptk, sizeof(keydvt_out.ptk)); + + /* Compute MIC and verify it */ + result = wusb_oob_mic(mic, keydvt_out.kck, &ccm_n, &hs[1]); + if (result < 0) { + dev_err(dev, "Handshake2 failed: cannot compute MIC: %d\n", + result); + goto error_hs2; + } + + d_printf(2, dev, "MIC:\n"); + d_dump(2, dev, mic, sizeof(mic)); + if (memcmp(hs[1].MIC, mic, sizeof(hs[1].MIC))) { + dev_err(dev, "Handshake2 failed: MIC mismatch\n"); + goto error_hs2; + } + + /* Send Handshake3 */ + hs[2].bMessageNumber = 3; + hs[2].bStatus = 0; + memcpy(hs[2].tTKID, &tkid_le, sizeof(hs[2].tTKID)); + hs[2].bReserved = 0; + memcpy(hs[2].CDID, cdid, sizeof(hs[2].CDID)); + memcpy(hs[2].nonce, hs[0].nonce, sizeof(hs[2].nonce)); + result = wusb_oob_mic(hs[2].MIC, keydvt_out.kck, &ccm_n, &hs[2]); + if (result < 0) { + dev_err(dev, "Handshake3 failed: cannot compute MIC: %d\n", + result); + goto error_hs2; + } + + d_printf(1, dev, "I: sending hs3:\n"); + hs_printk(2, dev, &hs[2]); + + result = usb_control_msg( + usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_HANDSHAKE, + USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, + 3, 0, &hs[2], sizeof(hs[2]), 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "Handshake3: request failed: %d\n", result); + goto error_hs3; + } + + d_printf(1, dev, "I: turning on encryption on host for device\n"); + d_dump(2, dev, keydvt_out.ptk, sizeof(keydvt_out.ptk)); + result = wusbhc->set_ptk(wusbhc, wusb_dev->port_idx, tkid, + keydvt_out.ptk, sizeof(keydvt_out.ptk)); + if (result < 0) + goto error_wusbhc_set_ptk; + + d_printf(1, dev, "I: setting a GTK\n"); + result = wusb_dev_set_gtk(wusbhc, wusb_dev); + if (result < 0) { + dev_err(dev, "Set GTK for device: request failed: %d\n", + result); + goto error_wusbhc_set_gtk; + } + + /* Update the device's address from unauth to auth */ + if (usb_dev->authenticated == 0) { + d_printf(1, dev, "I: updating addres to auth from non-auth\n"); + result = wusb_dev_update_address(wusbhc, wusb_dev); + if (result < 0) + goto error_dev_update_address; + } + result = 0; + d_printf(1, dev, "I: 4way handshke done, device authenticated\n"); + +error_dev_update_address: +error_wusbhc_set_gtk: +error_wusbhc_set_ptk: +error_hs3: +error_hs2: +error_hs1: + memset(hs, 0, 3*sizeof(hs[0])); + memset(&keydvt_out, 0, sizeof(keydvt_out)); + memset(&keydvt_in, 0, sizeof(keydvt_in)); + memset(&ccm_n, 0, sizeof(ccm_n)); + memset(mic, 0, sizeof(mic)); + if (result < 0) { + /* error path */ + wusb_dev_set_encryption(usb_dev, 0); + } +error_dev_set_encryption: + kfree(hs); +error_kzalloc: + return result; +} + +/* + * Once all connected and authenticated devices have received the new + * GTK, switch the host to using it. + */ +static void wusbhc_gtk_rekey_done_work(struct work_struct *work) +{ + struct wusbhc *wusbhc = container_of(work, struct wusbhc, gtk_rekey_done_work); + size_t key_size = sizeof(wusbhc->gtk.data); + + mutex_lock(&wusbhc->mutex); + + if (--wusbhc->pending_set_gtks == 0) + wusbhc->set_gtk(wusbhc, wusbhc->gtk_tkid, &wusbhc->gtk.descr.bKeyData, key_size); + + mutex_unlock(&wusbhc->mutex); +} + +static void wusbhc_set_gtk_callback(struct urb *urb) +{ + struct wusbhc *wusbhc = urb->context; + + queue_work(wusbd, &wusbhc->gtk_rekey_done_work); +} + +/** + * wusbhc_gtk_rekey - generate and distribute a new GTK + * @wusbhc: the WUSB host controller + * + * Generate a new GTK and distribute it to all connected and + * authenticated devices. When all devices have the new GTK, the host + * starts using it. + * + * This must be called after every device disconnect (see [WUSB] + * section 6.2.11.2). + */ +void wusbhc_gtk_rekey(struct wusbhc *wusbhc) +{ + static const size_t key_size = sizeof(wusbhc->gtk.data); + int p; + + wusbhc_generate_gtk(wusbhc); + + for (p = 0; p < wusbhc->ports_max; p++) { + struct wusb_dev *wusb_dev; + + wusb_dev = wusbhc->port[p].wusb_dev; + if (!wusb_dev || !wusb_dev->usb_dev | !wusb_dev->usb_dev->authenticated) + continue; + + usb_fill_control_urb(wusb_dev->set_gtk_urb, wusb_dev->usb_dev, + usb_sndctrlpipe(wusb_dev->usb_dev, 0), + (void *)wusb_dev->set_gtk_req, + &wusbhc->gtk.descr, wusbhc->gtk.descr.bLength, + wusbhc_set_gtk_callback, wusbhc); + if (usb_submit_urb(wusb_dev->set_gtk_urb, GFP_KERNEL) == 0) + wusbhc->pending_set_gtks++; + } + if (wusbhc->pending_set_gtks == 0) + wusbhc->set_gtk(wusbhc, wusbhc->gtk_tkid, &wusbhc->gtk.descr.bKeyData, key_size); +} diff --git a/drivers/usb/wusbcore/wa-hc.c b/drivers/usb/wusbcore/wa-hc.c new file mode 100644 index 000000000000..c0b167f915ad --- /dev/null +++ b/drivers/usb/wusbcore/wa-hc.c @@ -0,0 +1,83 @@ +/* + * Wire Adapter Host Controller Driver + * Common items to HWA and DWA based HCDs + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ +#include "wa-hc.h" + +/** + * Assumes + * + * wa->usb_dev and wa->usb_iface initialized and refcounted, + * wa->wa_descr initialized. + */ +int wa_create(struct wahc *wa, struct usb_interface *iface) +{ + int result; + struct device *dev = &iface->dev; + + result = wa_rpipes_create(wa); + if (result < 0) + goto error_rpipes_create; + /* Fill up Data Transfer EP pointers */ + wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc; + wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc; + wa->xfer_result_size = le16_to_cpu(wa->dti_epd->wMaxPacketSize); + wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL); + if (wa->xfer_result == NULL) + goto error_xfer_result_alloc; + result = wa_nep_create(wa, iface); + if (result < 0) { + dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n", + result); + goto error_nep_create; + } + return 0; + +error_nep_create: + kfree(wa->xfer_result); +error_xfer_result_alloc: + wa_rpipes_destroy(wa); +error_rpipes_create: + return result; +} +EXPORT_SYMBOL_GPL(wa_create); + + +void __wa_destroy(struct wahc *wa) +{ + if (wa->dti_urb) { + usb_kill_urb(wa->dti_urb); + usb_put_urb(wa->dti_urb); + usb_kill_urb(wa->buf_in_urb); + usb_put_urb(wa->buf_in_urb); + } + kfree(wa->xfer_result); + wa_nep_destroy(wa); + wa_rpipes_destroy(wa); +} +EXPORT_SYMBOL_GPL(__wa_destroy); + + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Wireless USB Wire Adapter core"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h new file mode 100644 index 000000000000..d0b6022fbb4a --- /dev/null +++ b/drivers/usb/wusbcore/wa-hc.h @@ -0,0 +1,416 @@ +/* + * HWA Host Controller Driver + * Wire Adapter Control/Data Streaming Iface (WUSB1.0[8]) + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This driver implements a USB Host Controller (struct usb_hcd) for a + * Wireless USB Host Controller based on the Wireless USB 1.0 + * Host-Wire-Adapter specification (in layman terms, a USB-dongle that + * implements a Wireless USB host). + * + * Check out the Design-overview.txt file in the source documentation + * for other details on the implementation. + * + * Main blocks: + * + * driver glue with the driver API, workqueue daemon + * + * lc RC instance life cycle management (create, destroy...) + * + * hcd glue with the USB API Host Controller Interface API. + * + * nep Notification EndPoint managent: collect notifications + * and queue them with the workqueue daemon. + * + * Handle notifications as coming from the NEP. Sends them + * off others to their respective modules (eg: connect, + * disconnect and reset go to devconnect). + * + * rpipe Remote Pipe management; rpipe is what we use to write + * to an endpoint on a WUSB device that is connected to a + * HWA RC. + * + * xfer Transfer managment -- this is all the code that gets a + * buffer and pushes it to a device (or viceversa). * + * + * Some day a lot of this code will be shared between this driver and + * the drivers for DWA (xfer, rpipe). + * + * All starts at driver.c:hwahc_probe(), when one of this guys is + * connected. hwahc_disconnect() stops it. + * + * During operation, the main driver is devices connecting or + * disconnecting. They cause the HWA RC to send notifications into + * nep.c:hwahc_nep_cb() that will dispatch them to + * notif.c:wa_notif_dispatch(). From there they will fan to cause + * device connects, disconnects, etc. + * + * Note much of the activity is difficult to follow. For example a + * device connect goes to devconnect, which will cause the "fake" root + * hub port to show a connect and stop there. Then khubd will notice + * and call into the rh.c:hwahc_rc_port_reset() code to authenticate + * the device (and this might require user intervention) and enable + * the port. + * + * We also have a timer workqueue going from devconnect.c that + * schedules in hwahc_devconnect_create(). + * + * The rest of the traffic is in the usual entry points of a USB HCD, + * which are hooked up in driver.c:hwahc_rc_driver, and defined in + * hcd.c. + */ + +#ifndef __HWAHC_INTERNAL_H__ +#define __HWAHC_INTERNAL_H__ + +#include <linux/completion.h> +#include <linux/usb.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> +#include <linux/uwb.h> +#include <linux/usb/wusb.h> +#include <linux/usb/wusb-wa.h> + +struct wusbhc; +struct wahc; +extern void wa_urb_enqueue_run(struct work_struct *ws); + +/** + * RPipe instance + * + * @descr's fields are kept in LE, as we need to send it back and + * forth. + * + * @wa is referenced when set + * + * @segs_available is the number of requests segments that still can + * be submitted to the controller without overloading + * it. It is initialized to descr->wRequests when + * aiming. + * + * A rpipe supports a max of descr->wRequests at the same time; before + * submitting seg_lock has to be taken. If segs_avail > 0, then we can + * submit; if not, we have to queue them. + */ +struct wa_rpipe { + struct kref refcnt; + struct usb_rpipe_descriptor descr; + struct usb_host_endpoint *ep; + struct wahc *wa; + spinlock_t seg_lock; + struct list_head seg_list; + atomic_t segs_available; + u8 buffer[1]; /* For reads/writes on USB */ +}; + + +/** + * Instance of a HWA Host Controller + * + * Except where a more specific lock/mutex applies or atomic, all + * fields protected by @mutex. + * + * @wa_descr Can be accessed without locking because it is in + * the same area where the device descriptors were + * read, so it is guaranteed to exist umodified while + * the device exists. + * + * Endianess has been converted to CPU's. + * + * @nep_* can be accessed without locking as its processing is + * serialized; we submit a NEP URB and it comes to + * hwahc_nep_cb(), which won't issue another URB until it is + * done processing it. + * + * @xfer_list: + * + * List of active transfers to verify existence from a xfer id + * gotten from the xfer result message. Can't use urb->list because + * it goes by endpoint, and we don't know the endpoint at the time + * when we get the xfer result message. We can't really rely on the + * pointer (will have to change for 64 bits) as the xfer id is 32 bits. + * + * @xfer_delayed_list: List of transfers that need to be started + * (with a workqueue, because they were + * submitted from an atomic context). + * + * FIXME: this needs to be layered up: a wusbhc layer (for sharing + * comonalities with WHCI), a wa layer (for sharing + * comonalities with DWA-RC). + */ +struct wahc { + struct usb_device *usb_dev; + struct usb_interface *usb_iface; + + /* HC to deliver notifications */ + union { + struct wusbhc *wusb; + struct dwahc *dwa; + }; + + const struct usb_endpoint_descriptor *dto_epd, *dti_epd; + const struct usb_wa_descriptor *wa_descr; + + struct urb *nep_urb; /* Notification EndPoint [lockless] */ + struct edc nep_edc; + void *nep_buffer; + size_t nep_buffer_size; + + atomic_t notifs_queued; + + u16 rpipes; + unsigned long *rpipe_bm; /* rpipe usage bitmap */ + spinlock_t rpipe_bm_lock; /* protect rpipe_bm */ + struct mutex rpipe_mutex; /* assigning resources to endpoints */ + + struct urb *dti_urb; /* URB for reading xfer results */ + struct urb *buf_in_urb; /* URB for reading data in */ + struct edc dti_edc; /* DTI error density counter */ + struct wa_xfer_result *xfer_result; /* real size = dti_ep maxpktsize */ + size_t xfer_result_size; + + s32 status; /* For reading status */ + + struct list_head xfer_list; + struct list_head xfer_delayed_list; + spinlock_t xfer_list_lock; + struct work_struct xfer_work; + atomic_t xfer_id_count; +}; + + +extern int wa_create(struct wahc *wa, struct usb_interface *iface); +extern void __wa_destroy(struct wahc *wa); + + +/* Miscellaneous constants */ +enum { + /** Max number of EPROTO errors we tolerate on the NEP in a + * period of time */ + HWAHC_EPROTO_MAX = 16, + /** Period of time for EPROTO errors (in jiffies) */ + HWAHC_EPROTO_PERIOD = 4 * HZ, +}; + + +/* Notification endpoint handling */ +extern int wa_nep_create(struct wahc *, struct usb_interface *); +extern void wa_nep_destroy(struct wahc *); + +static inline int wa_nep_arm(struct wahc *wa, gfp_t gfp_mask) +{ + struct urb *urb = wa->nep_urb; + urb->transfer_buffer = wa->nep_buffer; + urb->transfer_buffer_length = wa->nep_buffer_size; + return usb_submit_urb(urb, gfp_mask); +} + +static inline void wa_nep_disarm(struct wahc *wa) +{ + usb_kill_urb(wa->nep_urb); +} + + +/* RPipes */ +static inline void wa_rpipe_init(struct wahc *wa) +{ + spin_lock_init(&wa->rpipe_bm_lock); + mutex_init(&wa->rpipe_mutex); +} + +static inline void wa_init(struct wahc *wa) +{ + edc_init(&wa->nep_edc); + atomic_set(&wa->notifs_queued, 0); + wa_rpipe_init(wa); + edc_init(&wa->dti_edc); + INIT_LIST_HEAD(&wa->xfer_list); + INIT_LIST_HEAD(&wa->xfer_delayed_list); + spin_lock_init(&wa->xfer_list_lock); + INIT_WORK(&wa->xfer_work, wa_urb_enqueue_run); + atomic_set(&wa->xfer_id_count, 1); +} + +/** + * Destroy a pipe (when refcount drops to zero) + * + * Assumes it has been moved to the "QUIESCING" state. + */ +struct wa_xfer; +extern void rpipe_destroy(struct kref *_rpipe); +static inline +void __rpipe_get(struct wa_rpipe *rpipe) +{ + kref_get(&rpipe->refcnt); +} +extern int rpipe_get_by_ep(struct wahc *, struct usb_host_endpoint *, + struct urb *, gfp_t); +static inline void rpipe_put(struct wa_rpipe *rpipe) +{ + kref_put(&rpipe->refcnt, rpipe_destroy); + +} +extern void rpipe_ep_disable(struct wahc *, struct usb_host_endpoint *); +extern int wa_rpipes_create(struct wahc *); +extern void wa_rpipes_destroy(struct wahc *); +static inline void rpipe_avail_dec(struct wa_rpipe *rpipe) +{ + atomic_dec(&rpipe->segs_available); +} + +/** + * Returns true if the rpipe is ready to submit more segments. + */ +static inline int rpipe_avail_inc(struct wa_rpipe *rpipe) +{ + return atomic_inc_return(&rpipe->segs_available) > 0 + && !list_empty(&rpipe->seg_list); +} + + +/* Transferring data */ +extern int wa_urb_enqueue(struct wahc *, struct usb_host_endpoint *, + struct urb *, gfp_t); +extern int wa_urb_dequeue(struct wahc *, struct urb *); +extern void wa_handle_notif_xfer(struct wahc *, struct wa_notif_hdr *); + + +/* Misc + * + * FIXME: Refcounting for the actual @hwahc object is not correct; I + * mean, this should be refcounting on the HCD underneath, but + * it is not. In any case, the semantics for HCD refcounting + * are *weird*...on refcount reaching zero it just frees + * it...no RC specific function is called...unless I miss + * something. + * + * FIXME: has to go away in favour of an 'struct' hcd based sollution + */ +static inline struct wahc *wa_get(struct wahc *wa) +{ + usb_get_intf(wa->usb_iface); + return wa; +} + +static inline void wa_put(struct wahc *wa) +{ + usb_put_intf(wa->usb_iface); +} + + +static inline int __wa_feature(struct wahc *wa, unsigned op, u16 feature) +{ + return usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + op ? USB_REQ_SET_FEATURE : USB_REQ_CLEAR_FEATURE, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + feature, + wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + NULL, 0, 1000 /* FIXME: arbitrary */); +} + + +static inline int __wa_set_feature(struct wahc *wa, u16 feature) +{ + return __wa_feature(wa, 1, feature); +} + + +static inline int __wa_clear_feature(struct wahc *wa, u16 feature) +{ + return __wa_feature(wa, 0, feature); +} + + +/** + * Return the status of a Wire Adapter + * + * @wa: Wire Adapter instance + * @returns < 0 errno code on error, or status bitmap as described + * in WUSB1.0[8.3.1.6]. + * + * NOTE: need malloc, some arches don't take USB from the stack + */ +static inline +s32 __wa_get_status(struct wahc *wa) +{ + s32 result; + result = usb_control_msg( + wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0), + USB_REQ_GET_STATUS, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber, + &wa->status, sizeof(wa->status), + 1000 /* FIXME: arbitrary */); + if (result >= 0) + result = wa->status; + return result; +} + + +/** + * Waits until the Wire Adapter's status matches @mask/@value + * + * @wa: Wire Adapter instance. + * @returns < 0 errno code on error, otherwise status. + * + * Loop until the WAs status matches the mask and value (status & mask + * == value). Timeout if it doesn't happen. + * + * FIXME: is there an official specification on how long status + * changes can take? + */ +static inline s32 __wa_wait_status(struct wahc *wa, u32 mask, u32 value) +{ + s32 result; + unsigned loops = 10; + do { + msleep(50); + result = __wa_get_status(wa); + if ((result & mask) == value) + break; + if (loops-- == 0) { + result = -ETIMEDOUT; + break; + } + } while (result >= 0); + return result; +} + + +/** Command @hwahc to stop, @returns 0 if ok, < 0 errno code on error */ +static inline int __wa_stop(struct wahc *wa) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + + result = __wa_clear_feature(wa, WA_ENABLE); + if (result < 0 && result != -ENODEV) { + dev_err(dev, "error commanding HC to stop: %d\n", result); + goto out; + } + result = __wa_wait_status(wa, WA_ENABLE, 0); + if (result < 0 && result != -ENODEV) + dev_err(dev, "error waiting for HC to stop: %d\n", result); +out: + return 0; +} + + +#endif /* #ifndef __HWAHC_INTERNAL_H__ */ diff --git a/drivers/usb/wusbcore/wa-nep.c b/drivers/usb/wusbcore/wa-nep.c new file mode 100644 index 000000000000..b0f3d65f2746 --- /dev/null +++ b/drivers/usb/wusbcore/wa-nep.c @@ -0,0 +1,313 @@ +/* + * WUSB Wire Adapter: Control/Data Streaming Interface (WUSB[8]) + * Notification EndPoint support + * + * Copyright (C) 2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This part takes care of getting the notification from the hw + * only and dispatching through wusbwad into + * wa_notif_dispatch. Handling is done there. + * + * WA notifications are limited in size; most of them are three or + * four bytes long, and the longest is the HWA Device Notification, + * which would not exceed 38 bytes (DNs are limited in payload to 32 + * bytes plus 3 bytes header (WUSB1.0[7.6p2]), plus 3 bytes HWA + * header (WUSB1.0[8.5.4.2]). + * + * It is not clear if more than one Device Notification can be packed + * in a HWA Notification, I assume no because of the wording in + * WUSB1.0[8.5.4.2]. In any case, the bigger any notification could + * get is 256 bytes (as the bLength field is a byte). + * + * So what we do is we have this buffer and read into it; when a + * notification arrives we schedule work to a specific, single thread + * workqueue (so notifications are serialized) and copy the + * notification data. After scheduling the work, we rearm the read from + * the notification endpoint. + * + * Entry points here are: + * + * wa_nep_[create|destroy]() To initialize/release this subsystem + * + * wa_nep_cb() Callback for the notification + * endpoint; when data is ready, this + * does the dispatching. + */ +#include <linux/workqueue.h> +#include <linux/ctype.h> +#include <linux/uwb/debug.h> +#include "wa-hc.h" +#include "wusbhc.h" + +/* Structure for queueing notifications to the workqueue */ +struct wa_notif_work { + struct work_struct work; + struct wahc *wa; + size_t size; + u8 data[]; +}; + +/* + * Process incoming notifications from the WA's Notification EndPoint + * [the wuswad daemon, basically] + * + * @_nw: Pointer to a descriptor which has the pointer to the + * @wa, the size of the buffer and the work queue + * structure (so we can free all when done). + * @returns 0 if ok, < 0 errno code on error. + * + * All notifications follow the same format; they need to start with a + * 'struct wa_notif_hdr' header, so it is easy to parse through + * them. We just break the buffer in individual notifications (the + * standard doesn't say if it can be done or is forbidden, so we are + * cautious) and dispatch each. + * + * So the handling layers are is: + * + * WA specific notification (from NEP) + * Device Notification Received -> wa_handle_notif_dn() + * WUSB Device notification generic handling + * BPST Adjustment -> wa_handle_notif_bpst_adj() + * ... -> ... + * + * @wa has to be referenced + */ +static void wa_notif_dispatch(struct work_struct *ws) +{ + void *itr; + u8 missing = 0; + struct wa_notif_work *nw = container_of(ws, struct wa_notif_work, work); + struct wahc *wa = nw->wa; + struct wa_notif_hdr *notif_hdr; + size_t size; + + struct device *dev = &wa->usb_iface->dev; + +#if 0 + /* FIXME: need to check for this??? */ + if (usb_hcd->state == HC_STATE_QUIESCING) /* Going down? */ + goto out; /* screw it */ +#endif + atomic_dec(&wa->notifs_queued); /* Throttling ctl */ + dev = &wa->usb_iface->dev; + size = nw->size; + itr = nw->data; + + while (size) { + if (size < sizeof(*notif_hdr)) { + missing = sizeof(*notif_hdr) - size; + goto exhausted_buffer; + } + notif_hdr = itr; + if (size < notif_hdr->bLength) + goto exhausted_buffer; + itr += notif_hdr->bLength; + size -= notif_hdr->bLength; + /* Dispatch the notification [don't use itr or size!] */ + switch (notif_hdr->bNotifyType) { + case HWA_NOTIF_DN: { + struct hwa_notif_dn *hwa_dn; + hwa_dn = container_of(notif_hdr, struct hwa_notif_dn, + hdr); + if (hwa_dn->secure) + dev_info(dev, "HWA DN: secure = %u\n", + hwa_dn->secure); + wusbhc_handle_dn(wa->wusb, hwa_dn->bSourceDeviceAddr, + hwa_dn->dndata, + notif_hdr->bLength - sizeof(*hwa_dn)); + break; + } + case WA_NOTIF_TRANSFER: + wa_handle_notif_xfer(wa, notif_hdr); + break; + case DWA_NOTIF_RWAKE: + case DWA_NOTIF_PORTSTATUS: + case HWA_NOTIF_BPST_ADJ: + /* FIXME: unimplemented WA NOTIFs */ + /* fallthru */ + default: + if (printk_ratelimit()) { + dev_err(dev, "HWA: unknown notification 0x%x, " + "%zu bytes; discarding\n", + notif_hdr->bNotifyType, + (size_t)notif_hdr->bLength); + dump_bytes(dev, notif_hdr, 16); + } + break; + } + } +out: + wa_put(wa); + kfree(nw); + return; + + /* THIS SHOULD NOT HAPPEN + * + * Buffer exahusted with partial data remaining; just warn and + * discard the data, as this should not happen. + */ +exhausted_buffer: + if (!printk_ratelimit()) + goto out; + dev_warn(dev, "HWA: device sent short notification, " + "%d bytes missing; discarding %d bytes.\n", + missing, (int)size); + dump_bytes(dev, itr, size); + goto out; +} + +/* + * Deliver incoming WA notifications to the wusbwa workqueue + * + * @wa: Pointer the Wire Adapter Controller Data Streaming + * instance (part of an 'struct usb_hcd'). + * @size: Size of the received buffer + * @returns 0 if ok, < 0 errno code on error. + * + * The input buffer is @wa->nep_buffer, with @size bytes + * (guaranteed to fit in the allocated space, + * @wa->nep_buffer_size). + */ +static int wa_nep_queue(struct wahc *wa, size_t size) +{ + int result = 0; + struct device *dev = &wa->usb_iface->dev; + struct wa_notif_work *nw; + + /* dev_fnstart(dev, "(wa %p, size %zu)\n", wa, size); */ + BUG_ON(size > wa->nep_buffer_size); + if (size == 0) + goto out; + if (atomic_read(&wa->notifs_queued) > 200) { + if (printk_ratelimit()) + dev_err(dev, "Too many notifications queued, " + "throttling back\n"); + goto out; + } + nw = kzalloc(sizeof(*nw) + size, GFP_ATOMIC); + if (nw == NULL) { + if (printk_ratelimit()) + dev_err(dev, "No memory to queue notification\n"); + goto out; + } + INIT_WORK(&nw->work, wa_notif_dispatch); + nw->wa = wa_get(wa); + nw->size = size; + memcpy(nw->data, wa->nep_buffer, size); + atomic_inc(&wa->notifs_queued); /* Throttling ctl */ + queue_work(wusbd, &nw->work); +out: + /* dev_fnend(dev, "(wa %p, size %zu) = result\n", wa, size, result); */ + return result; +} + +/* + * Callback for the notification event endpoint + * + * Check's that everything is fine and then passes the data to be + * queued to the workqueue. + */ +static void wa_nep_cb(struct urb *urb) +{ + int result; + struct wahc *wa = urb->context; + struct device *dev = &wa->usb_iface->dev; + + switch (result = urb->status) { + case 0: + result = wa_nep_queue(wa, urb->actual_length); + if (result < 0) + dev_err(dev, "NEP: unable to process notification(s): " + "%d\n", result); + break; + case -ECONNRESET: /* Not an error, but a controlled situation; */ + case -ENOENT: /* (we killed the URB)...so, no broadcast */ + case -ESHUTDOWN: + dev_dbg(dev, "NEP: going down %d\n", urb->status); + goto out; + default: /* On general errors, we retry unless it gets ugly */ + if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "NEP: URB max acceptable errors " + "exceeded, resetting device\n"); + usb_dev_reset_delayed(wa->usb_dev); + goto out; + } + dev_err(dev, "NEP: URB error %d\n", urb->status); + } + result = wa_nep_arm(wa, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "NEP: cannot submit URB: %d\n", result); + usb_dev_reset_delayed(wa->usb_dev); + } +out: + return; +} + +/* + * Initialize @wa's notification and event's endpoint stuff + * + * This includes the allocating the read buffer, the context ID + * allocation bitmap, the URB and submitting the URB. + */ +int wa_nep_create(struct wahc *wa, struct usb_interface *iface) +{ + int result; + struct usb_endpoint_descriptor *epd; + struct usb_device *usb_dev = interface_to_usbdev(iface); + struct device *dev = &iface->dev; + + edc_init(&wa->nep_edc); + epd = &iface->cur_altsetting->endpoint[0].desc; + wa->nep_buffer_size = 1024; + wa->nep_buffer = kmalloc(wa->nep_buffer_size, GFP_KERNEL); + if (wa->nep_buffer == NULL) { + dev_err(dev, "Unable to allocate notification's read buffer\n"); + goto error_nep_buffer; + } + wa->nep_urb = usb_alloc_urb(0, GFP_KERNEL); + if (wa->nep_urb == NULL) { + dev_err(dev, "Unable to allocate notification URB\n"); + goto error_urb_alloc; + } + usb_fill_int_urb(wa->nep_urb, usb_dev, + usb_rcvintpipe(usb_dev, epd->bEndpointAddress), + wa->nep_buffer, wa->nep_buffer_size, + wa_nep_cb, wa, epd->bInterval); + result = wa_nep_arm(wa, GFP_KERNEL); + if (result < 0) { + dev_err(dev, "Cannot submit notification URB: %d\n", result); + goto error_nep_arm; + } + return 0; + +error_nep_arm: + usb_free_urb(wa->nep_urb); +error_urb_alloc: + kfree(wa->nep_buffer); +error_nep_buffer: + return -ENOMEM; +} + +void wa_nep_destroy(struct wahc *wa) +{ + wa_nep_disarm(wa); + usb_free_urb(wa->nep_urb); + kfree(wa->nep_buffer); +} diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c new file mode 100644 index 000000000000..eb78b9d0b268 --- /dev/null +++ b/drivers/usb/wusbcore/wa-rpipe.c @@ -0,0 +1,562 @@ +/* + * WUSB Wire Adapter + * rpipe management + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * + * RPIPE + * + * Targetted at different downstream endpoints + * + * Descriptor: use to config the remote pipe. + * + * The number of blocks could be dynamic (wBlocks in descriptor is + * 0)--need to schedule them then. + * + * Each bit in wa->rpipe_bm represents if an rpipe is being used or + * not. Rpipes are represented with a 'struct wa_rpipe' that is + * attached to the hcpriv member of a 'struct usb_host_endpoint'. + * + * When you need to xfer data to an endpoint, you get an rpipe for it + * with wa_ep_rpipe_get(), which gives you a reference to the rpipe + * and keeps a single one (the first one) with the endpoint. When you + * are done transferring, you drop that reference. At the end the + * rpipe is always allocated and bound to the endpoint. There it might + * be recycled when not used. + * + * Addresses: + * + * We use a 1:1 mapping mechanism between port address (0 based + * index, actually) and the address. The USB stack knows about this. + * + * USB Stack port number 4 (1 based) + * WUSB code port index 3 (0 based) + * USB Addresss 5 (2 based -- 0 is for default, 1 for root hub) + * + * Now, because we don't use the concept as default address exactly + * like the (wired) USB code does, we need to kind of skip it. So we + * never take addresses from the urb->pipe, but from the + * urb->dev->devnum, to make sure that we always have the right + * destination address. + */ +#include <linux/init.h> +#include <asm/atomic.h> +#include <linux/bitmap.h> +#include "wusbhc.h" +#include "wa-hc.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + + +static int __rpipe_get_descr(struct wahc *wa, + struct usb_rpipe_descriptor *descr, u16 index) +{ + ssize_t result; + struct device *dev = &wa->usb_iface->dev; + + /* Get the RPIPE descriptor -- we cannot use the usb_get_descriptor() + * function because the arguments are different. + */ + d_printf(1, dev, "rpipe %u: get descr\n", index); + result = usb_control_msg( + wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0), + USB_REQ_GET_DESCRIPTOR, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_RPIPE, + USB_DT_RPIPE<<8, index, descr, sizeof(*descr), + 1000 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(dev, "rpipe %u: get descriptor failed: %d\n", + index, (int)result); + goto error; + } + if (result < sizeof(*descr)) { + dev_err(dev, "rpipe %u: got short descriptor " + "(%zd vs %zd bytes needed)\n", + index, result, sizeof(*descr)); + result = -EINVAL; + goto error; + } + result = 0; + +error: + return result; +} + +/* + * + * The descriptor is assumed to be properly initialized (ie: you got + * it through __rpipe_get_descr()). + */ +static int __rpipe_set_descr(struct wahc *wa, + struct usb_rpipe_descriptor *descr, u16 index) +{ + ssize_t result; + struct device *dev = &wa->usb_iface->dev; + + /* we cannot use the usb_get_descriptor() function because the + * arguments are different. + */ + d_printf(1, dev, "rpipe %u: set descr\n", index); + result = usb_control_msg( + wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_SET_DESCRIPTOR, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, + USB_DT_RPIPE<<8, index, descr, sizeof(*descr), + HZ / 10); + if (result < 0) { + dev_err(dev, "rpipe %u: set descriptor failed: %d\n", + index, (int)result); + goto error; + } + if (result < sizeof(*descr)) { + dev_err(dev, "rpipe %u: sent short descriptor " + "(%zd vs %zd bytes required)\n", + index, result, sizeof(*descr)); + result = -EINVAL; + goto error; + } + result = 0; + +error: + return result; + +} + +static void rpipe_init(struct wa_rpipe *rpipe) +{ + kref_init(&rpipe->refcnt); + spin_lock_init(&rpipe->seg_lock); + INIT_LIST_HEAD(&rpipe->seg_list); +} + +static unsigned rpipe_get_idx(struct wahc *wa, unsigned rpipe_idx) +{ + unsigned long flags; + + spin_lock_irqsave(&wa->rpipe_bm_lock, flags); + rpipe_idx = find_next_zero_bit(wa->rpipe_bm, wa->rpipes, rpipe_idx); + if (rpipe_idx < wa->rpipes) + set_bit(rpipe_idx, wa->rpipe_bm); + spin_unlock_irqrestore(&wa->rpipe_bm_lock, flags); + + return rpipe_idx; +} + +static void rpipe_put_idx(struct wahc *wa, unsigned rpipe_idx) +{ + unsigned long flags; + + spin_lock_irqsave(&wa->rpipe_bm_lock, flags); + clear_bit(rpipe_idx, wa->rpipe_bm); + spin_unlock_irqrestore(&wa->rpipe_bm_lock, flags); +} + +void rpipe_destroy(struct kref *_rpipe) +{ + struct wa_rpipe *rpipe = container_of(_rpipe, struct wa_rpipe, refcnt); + u8 index = le16_to_cpu(rpipe->descr.wRPipeIndex); + d_fnstart(1, NULL, "(rpipe %p %u)\n", rpipe, index); + if (rpipe->ep) + rpipe->ep->hcpriv = NULL; + rpipe_put_idx(rpipe->wa, index); + wa_put(rpipe->wa); + kfree(rpipe); + d_fnend(1, NULL, "(rpipe %p %u)\n", rpipe, index); +} +EXPORT_SYMBOL_GPL(rpipe_destroy); + +/* + * Locate an idle rpipe, create an structure for it and return it + * + * @wa is referenced and unlocked + * @crs enum rpipe_attr, required endpoint characteristics + * + * The rpipe can be used only sequentially (not in parallel). + * + * The rpipe is moved into the "ready" state. + */ +static int rpipe_get_idle(struct wa_rpipe **prpipe, struct wahc *wa, u8 crs, + gfp_t gfp) +{ + int result; + unsigned rpipe_idx; + struct wa_rpipe *rpipe; + struct device *dev = &wa->usb_iface->dev; + + d_fnstart(3, dev, "(wa %p crs 0x%02x)\n", wa, crs); + rpipe = kzalloc(sizeof(*rpipe), gfp); + if (rpipe == NULL) + return -ENOMEM; + rpipe_init(rpipe); + + /* Look for an idle pipe */ + for (rpipe_idx = 0; rpipe_idx < wa->rpipes; rpipe_idx++) { + rpipe_idx = rpipe_get_idx(wa, rpipe_idx); + if (rpipe_idx >= wa->rpipes) /* no more pipes :( */ + break; + result = __rpipe_get_descr(wa, &rpipe->descr, rpipe_idx); + if (result < 0) + dev_err(dev, "Can't get descriptor for rpipe %u: %d\n", + rpipe_idx, result); + else if ((rpipe->descr.bmCharacteristics & crs) != 0) + goto found; + rpipe_put_idx(wa, rpipe_idx); + } + *prpipe = NULL; + kfree(rpipe); + d_fnend(3, dev, "(wa %p crs 0x%02x) = -ENXIO\n", wa, crs); + return -ENXIO; + +found: + set_bit(rpipe_idx, wa->rpipe_bm); + rpipe->wa = wa_get(wa); + *prpipe = rpipe; + d_fnstart(3, dev, "(wa %p crs 0x%02x) = 0\n", wa, crs); + return 0; +} + +static int __rpipe_reset(struct wahc *wa, unsigned index) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + + d_printf(1, dev, "rpipe %u: reset\n", index); + result = usb_control_msg( + wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0), + USB_REQ_RPIPE_RESET, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_RPIPE, + 0, index, NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0) + dev_err(dev, "rpipe %u: reset failed: %d\n", + index, result); + return result; +} + +/* + * Fake companion descriptor for ep0 + * + * See WUSB1.0[7.4.4], most of this is zero for bulk/int/ctl + */ +static struct usb_wireless_ep_comp_descriptor epc0 = { + .bLength = sizeof(epc0), + .bDescriptorType = USB_DT_WIRELESS_ENDPOINT_COMP, +/* .bMaxBurst = 1, */ + .bMaxSequence = 31, +}; + +/* + * Look for EP companion descriptor + * + * Get there, look for Inara in the endpoint's extra descriptors + */ +static struct usb_wireless_ep_comp_descriptor *rpipe_epc_find( + struct device *dev, struct usb_host_endpoint *ep) +{ + void *itr; + size_t itr_size; + struct usb_descriptor_header *hdr; + struct usb_wireless_ep_comp_descriptor *epcd; + + d_fnstart(3, dev, "(ep %p)\n", ep); + if (ep->desc.bEndpointAddress == 0) { + epcd = &epc0; + goto out; + } + itr = ep->extra; + itr_size = ep->extralen; + epcd = NULL; + while (itr_size > 0) { + if (itr_size < sizeof(*hdr)) { + dev_err(dev, "HW Bug? ep 0x%02x: extra descriptors " + "at offset %zu: only %zu bytes left\n", + ep->desc.bEndpointAddress, + itr - (void *) ep->extra, itr_size); + break; + } + hdr = itr; + if (hdr->bDescriptorType == USB_DT_WIRELESS_ENDPOINT_COMP) { + epcd = itr; + break; + } + if (hdr->bLength > itr_size) { + dev_err(dev, "HW Bug? ep 0x%02x: extra descriptor " + "at offset %zu (type 0x%02x) " + "length %d but only %zu bytes left\n", + ep->desc.bEndpointAddress, + itr - (void *) ep->extra, hdr->bDescriptorType, + hdr->bLength, itr_size); + break; + } + itr += hdr->bLength; + itr_size -= hdr->bDescriptorType; + } +out: + d_fnend(3, dev, "(ep %p) = %p\n", ep, epcd); + return epcd; +} + +/* + * Aim an rpipe to its device & endpoint destination + * + * Make sure we change the address to unauthenticathed if the device + * is WUSB and it is not authenticated. + */ +static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa, + struct usb_host_endpoint *ep, struct urb *urb, gfp_t gfp) +{ + int result = -ENOMSG; /* better code for lack of companion? */ + struct device *dev = &wa->usb_iface->dev; + struct usb_device *usb_dev = urb->dev; + struct usb_wireless_ep_comp_descriptor *epcd; + u8 unauth; + + d_fnstart(3, dev, "(rpipe %p wa %p ep %p, urb %p)\n", + rpipe, wa, ep, urb); + epcd = rpipe_epc_find(dev, ep); + if (epcd == NULL) { + dev_err(dev, "ep 0x%02x: can't find companion descriptor\n", + ep->desc.bEndpointAddress); + goto error; + } + unauth = usb_dev->wusb && !usb_dev->authenticated? 0x80 : 0; + __rpipe_reset(wa, le16_to_cpu(rpipe->descr.wRPipeIndex)); + atomic_set(&rpipe->segs_available, le16_to_cpu(rpipe->descr.wRequests)); + /* FIXME: block allocation system; request with queuing and timeout */ + /* FIXME: compute so seg_size > ep->maxpktsize */ + rpipe->descr.wBlocks = cpu_to_le16(16); /* given */ + /* ep0 maxpktsize is 0x200 (WUSB1.0[4.8.1]) */ + rpipe->descr.wMaxPacketSize = cpu_to_le16(ep->desc.wMaxPacketSize); + rpipe->descr.bHSHubAddress = 0; /* reserved: zero */ + rpipe->descr.bHSHubPort = wusb_port_no_to_idx(urb->dev->portnum); + /* FIXME: use maximum speed as supported or recommended by device */ + rpipe->descr.bSpeed = usb_pipeendpoint(urb->pipe) == 0? + UWB_PHY_RATE_53 : UWB_PHY_RATE_200; + d_printf(2, dev, "addr %u (0x%02x) rpipe #%u ep# %u speed %d\n", + urb->dev->devnum, urb->dev->devnum | unauth, + le16_to_cpu(rpipe->descr.wRPipeIndex), + usb_pipeendpoint(urb->pipe), rpipe->descr.bSpeed); + /* see security.c:wusb_update_address() */ + if (unlikely(urb->dev->devnum == 0x80)) + rpipe->descr.bDeviceAddress = 0; + else + rpipe->descr.bDeviceAddress = urb->dev->devnum | unauth; + rpipe->descr.bEndpointAddress = ep->desc.bEndpointAddress; + /* FIXME: bDataSequence */ + rpipe->descr.bDataSequence = 0; + /* FIXME: dwCurrentWindow */ + rpipe->descr.dwCurrentWindow = cpu_to_le32(1); + /* FIXME: bMaxDataSequence */ + rpipe->descr.bMaxDataSequence = epcd->bMaxSequence - 1; + rpipe->descr.bInterval = ep->desc.bInterval; + /* FIXME: bOverTheAirInterval */ + rpipe->descr.bOverTheAirInterval = 0; /* 0 if not isoc */ + /* FIXME: xmit power & preamble blah blah */ + rpipe->descr.bmAttribute = ep->desc.bmAttributes & 0x03; + /* rpipe->descr.bmCharacteristics RO */ + /* FIXME: bmRetryOptions */ + rpipe->descr.bmRetryOptions = 15; + /* FIXME: use for assessing link quality? */ + rpipe->descr.wNumTransactionErrors = 0; + result = __rpipe_set_descr(wa, &rpipe->descr, + le16_to_cpu(rpipe->descr.wRPipeIndex)); + if (result < 0) { + dev_err(dev, "Cannot aim rpipe: %d\n", result); + goto error; + } + result = 0; +error: + d_fnend(3, dev, "(rpipe %p wa %p ep %p urb %p) = %d\n", + rpipe, wa, ep, urb, result); + return result; +} + +/* + * Check an aimed rpipe to make sure it points to where we want + * + * We use bit 19 of the Linux USB pipe bitmap for unauth vs auth + * space; when it is like that, we or 0x80 to make an unauth address. + */ +static int rpipe_check_aim(const struct wa_rpipe *rpipe, const struct wahc *wa, + const struct usb_host_endpoint *ep, + const struct urb *urb, gfp_t gfp) +{ + int result = 0; /* better code for lack of companion? */ + struct device *dev = &wa->usb_iface->dev; + struct usb_device *usb_dev = urb->dev; + u8 unauth = (usb_dev->wusb && !usb_dev->authenticated)? 0x80 : 0; + u8 portnum = wusb_port_no_to_idx(urb->dev->portnum); + + d_fnstart(3, dev, "(rpipe %p wa %p ep %p, urb %p)\n", + rpipe, wa, ep, urb); +#define AIM_CHECK(rdf, val, text) \ + do { \ + if (rpipe->descr.rdf != (val)) { \ + dev_err(dev, \ + "rpipe aim discrepancy: " #rdf " " text "\n", \ + rpipe->descr.rdf, (val)); \ + result = -EINVAL; \ + WARN_ON(1); \ + } \ + } while (0) + AIM_CHECK(wMaxPacketSize, cpu_to_le16(ep->desc.wMaxPacketSize), + "(%u vs %u)"); + AIM_CHECK(bHSHubPort, portnum, "(%u vs %u)"); + AIM_CHECK(bSpeed, usb_pipeendpoint(urb->pipe) == 0 ? + UWB_PHY_RATE_53 : UWB_PHY_RATE_200, + "(%u vs %u)"); + AIM_CHECK(bDeviceAddress, urb->dev->devnum | unauth, "(%u vs %u)"); + AIM_CHECK(bEndpointAddress, ep->desc.bEndpointAddress, "(%u vs %u)"); + AIM_CHECK(bInterval, ep->desc.bInterval, "(%u vs %u)"); + AIM_CHECK(bmAttribute, ep->desc.bmAttributes & 0x03, "(%u vs %u)"); +#undef AIM_CHECK + return result; +} + +#ifndef CONFIG_BUG +#define CONFIG_BUG 0 +#endif + +/* + * Make sure there is an rpipe allocated for an endpoint + * + * If already allocated, we just refcount it; if not, we get an + * idle one, aim it to the right location and take it. + * + * Attaches to ep->hcpriv and rpipe->ep to ep. + */ +int rpipe_get_by_ep(struct wahc *wa, struct usb_host_endpoint *ep, + struct urb *urb, gfp_t gfp) +{ + int result = 0; + struct device *dev = &wa->usb_iface->dev; + struct wa_rpipe *rpipe; + u8 eptype; + + d_fnstart(3, dev, "(wa %p ep %p urb %p gfp 0x%08x)\n", wa, ep, urb, + gfp); + mutex_lock(&wa->rpipe_mutex); + rpipe = ep->hcpriv; + if (rpipe != NULL) { + if (CONFIG_BUG == 1) { + result = rpipe_check_aim(rpipe, wa, ep, urb, gfp); + if (result < 0) + goto error; + } + __rpipe_get(rpipe); + d_printf(2, dev, "ep 0x%02x: reusing rpipe %u\n", + ep->desc.bEndpointAddress, + le16_to_cpu(rpipe->descr.wRPipeIndex)); + } else { + /* hmm, assign idle rpipe, aim it */ + result = -ENOBUFS; + eptype = ep->desc.bmAttributes & 0x03; + result = rpipe_get_idle(&rpipe, wa, 1 << eptype, gfp); + if (result < 0) + goto error; + result = rpipe_aim(rpipe, wa, ep, urb, gfp); + if (result < 0) { + rpipe_put(rpipe); + goto error; + } + ep->hcpriv = rpipe; + rpipe->ep = ep; + __rpipe_get(rpipe); /* for caching into ep->hcpriv */ + d_printf(2, dev, "ep 0x%02x: using rpipe %u\n", + ep->desc.bEndpointAddress, + le16_to_cpu(rpipe->descr.wRPipeIndex)); + } + d_dump(4, dev, &rpipe->descr, sizeof(rpipe->descr)); +error: + mutex_unlock(&wa->rpipe_mutex); + d_fnend(3, dev, "(wa %p ep %p urb %p gfp 0x%08x)\n", wa, ep, urb, gfp); + return result; +} + +/* + * Allocate the bitmap for each rpipe. + */ +int wa_rpipes_create(struct wahc *wa) +{ + wa->rpipes = wa->wa_descr->wNumRPipes; + wa->rpipe_bm = kzalloc(BITS_TO_LONGS(wa->rpipes)*sizeof(unsigned long), + GFP_KERNEL); + if (wa->rpipe_bm == NULL) + return -ENOMEM; + return 0; +} + +void wa_rpipes_destroy(struct wahc *wa) +{ + struct device *dev = &wa->usb_iface->dev; + d_fnstart(3, dev, "(wa %p)\n", wa); + if (!bitmap_empty(wa->rpipe_bm, wa->rpipes)) { + char buf[256]; + WARN_ON(1); + bitmap_scnprintf(buf, sizeof(buf), wa->rpipe_bm, wa->rpipes); + dev_err(dev, "BUG: pipes not released on exit: %s\n", buf); + } + kfree(wa->rpipe_bm); + d_fnend(3, dev, "(wa %p)\n", wa); +} + +/* + * Release resources allocated for an endpoint + * + * If there is an associated rpipe to this endpoint, Abort any pending + * transfers and put it. If the rpipe ends up being destroyed, + * __rpipe_destroy() will cleanup ep->hcpriv. + * + * This is called before calling hcd->stop(), so you don't need to do + * anything else in there. + */ +void rpipe_ep_disable(struct wahc *wa, struct usb_host_endpoint *ep) +{ + struct device *dev = &wa->usb_iface->dev; + struct wa_rpipe *rpipe; + d_fnstart(2, dev, "(wa %p ep %p)\n", wa, ep); + mutex_lock(&wa->rpipe_mutex); + rpipe = ep->hcpriv; + if (rpipe != NULL) { + unsigned rc = atomic_read(&rpipe->refcnt.refcount); + int result; + u16 index = le16_to_cpu(rpipe->descr.wRPipeIndex); + + if (rc != 1) + d_printf(1, dev, "(wa %p ep %p) rpipe %p refcnt %u\n", + wa, ep, rpipe, rc); + + d_printf(1, dev, "rpipe %u: abort\n", index); + result = usb_control_msg( + wa->usb_dev, usb_rcvctrlpipe(wa->usb_dev, 0), + USB_REQ_RPIPE_ABORT, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_RPIPE, + 0, index, NULL, 0, 1000 /* FIXME: arbitrary */); + if (result < 0 && result != -ENODEV /* dev is gone */) + d_printf(1, dev, "(wa %p rpipe %u): abort failed: %d\n", + wa, index, result); + rpipe_put(rpipe); + } + mutex_unlock(&wa->rpipe_mutex); + d_fnend(2, dev, "(wa %p ep %p)\n", wa, ep); + return; +} +EXPORT_SYMBOL_GPL(rpipe_ep_disable); diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c new file mode 100644 index 000000000000..e344f749ae4f --- /dev/null +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -0,0 +1,1709 @@ +/* + * WUSB Wire Adapter + * Data transfer and URB enqueing + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * How transfers work: get a buffer, break it up in segments (segment + * size is a multiple of the maxpacket size). For each segment issue a + * segment request (struct wa_xfer_*), then send the data buffer if + * out or nothing if in (all over the DTO endpoint). + * + * For each submitted segment request, a notification will come over + * the NEP endpoint and a transfer result (struct xfer_result) will + * arrive in the DTI URB. Read it, get the xfer ID, see if there is + * data coming (inbound transfer), schedule a read and handle it. + * + * Sounds simple, it is a pain to implement. + * + * + * ENTRY POINTS + * + * FIXME + * + * LIFE CYCLE / STATE DIAGRAM + * + * FIXME + * + * THIS CODE IS DISGUSTING + * + * Warned you are; it's my second try and still not happy with it. + * + * NOTES: + * + * - No iso + * + * - Supports DMA xfers, control, bulk and maybe interrupt + * + * - Does not recycle unused rpipes + * + * An rpipe is assigned to an endpoint the first time it is used, + * and then it's there, assigned, until the endpoint is disabled + * (destroyed [{h,d}wahc_op_ep_disable()]. The assignment of the + * rpipe to the endpoint is done under the wa->rpipe_sem semaphore + * (should be a mutex). + * + * Two methods it could be done: + * + * (a) set up a timer everytime an rpipe's use count drops to 1 + * (which means unused) or when a transfer ends. Reset the + * timer when a xfer is queued. If the timer expires, release + * the rpipe [see rpipe_ep_disable()]. + * + * (b) when looking for free rpipes to attach [rpipe_get_by_ep()], + * when none are found go over the list, check their endpoint + * and their activity record (if no last-xfer-done-ts in the + * last x seconds) take it + * + * However, due to the fact that we have a set of limited + * resources (max-segments-at-the-same-time per xfer, + * xfers-per-ripe, blocks-per-rpipe, rpipes-per-host), at the end + * we are going to have to rebuild all this based on an scheduler, + * to where we have a list of transactions to do and based on the + * availability of the different requried components (blocks, + * rpipes, segment slots, etc), we go scheduling them. Painful. + */ +#include <linux/init.h> +#include <linux/spinlock.h> +#include <linux/hash.h> +#include "wa-hc.h" +#include "wusbhc.h" + +#undef D_LOCAL +#define D_LOCAL 0 /* 0 disabled, > 0 different levels... */ +#include <linux/uwb/debug.h> + +enum { + WA_SEGS_MAX = 255, +}; + +enum wa_seg_status { + WA_SEG_NOTREADY, + WA_SEG_READY, + WA_SEG_DELAYED, + WA_SEG_SUBMITTED, + WA_SEG_PENDING, + WA_SEG_DTI_PENDING, + WA_SEG_DONE, + WA_SEG_ERROR, + WA_SEG_ABORTED, +}; + +static void wa_xfer_delayed_run(struct wa_rpipe *); + +/* + * Life cycle governed by 'struct urb' (the refcount of the struct is + * that of the 'struct urb' and usb_free_urb() would free the whole + * struct). + */ +struct wa_seg { + struct urb urb; + struct urb *dto_urb; /* for data output? */ + struct list_head list_node; /* for rpipe->req_list */ + struct wa_xfer *xfer; /* out xfer */ + u8 index; /* which segment we are */ + enum wa_seg_status status; + ssize_t result; /* bytes xfered or error */ + struct wa_xfer_hdr xfer_hdr; + u8 xfer_extra[]; /* xtra space for xfer_hdr_ctl */ +}; + +static void wa_seg_init(struct wa_seg *seg) +{ + /* usb_init_urb() repeats a lot of work, so we do it here */ + kref_init(&seg->urb.kref); +} + +/* + * Protected by xfer->lock + * + */ +struct wa_xfer { + struct kref refcnt; + struct list_head list_node; + spinlock_t lock; + u32 id; + + struct wahc *wa; /* Wire adapter we are plugged to */ + struct usb_host_endpoint *ep; + struct urb *urb; /* URB we are transfering for */ + struct wa_seg **seg; /* transfer segments */ + u8 segs, segs_submitted, segs_done; + unsigned is_inbound:1; + unsigned is_dma:1; + size_t seg_size; + int result; + + gfp_t gfp; /* allocation mask */ + + struct wusb_dev *wusb_dev; /* for activity timestamps */ +}; + +static inline void wa_xfer_init(struct wa_xfer *xfer) +{ + kref_init(&xfer->refcnt); + INIT_LIST_HEAD(&xfer->list_node); + spin_lock_init(&xfer->lock); +} + +/* + * Destory a transfer structure + * + * Note that the xfer->seg[index] thingies follow the URB life cycle, + * so we need to put them, not free them. + */ +static void wa_xfer_destroy(struct kref *_xfer) +{ + struct wa_xfer *xfer = container_of(_xfer, struct wa_xfer, refcnt); + if (xfer->seg) { + unsigned cnt; + for (cnt = 0; cnt < xfer->segs; cnt++) { + if (xfer->is_inbound) + usb_put_urb(xfer->seg[cnt]->dto_urb); + usb_put_urb(&xfer->seg[cnt]->urb); + } + } + kfree(xfer); + d_printf(2, NULL, "xfer %p destroyed\n", xfer); +} + +static void wa_xfer_get(struct wa_xfer *xfer) +{ + kref_get(&xfer->refcnt); +} + +static void wa_xfer_put(struct wa_xfer *xfer) +{ + d_fnstart(3, NULL, "(xfer %p) -- ref count bef put %d\n", + xfer, atomic_read(&xfer->refcnt.refcount)); + kref_put(&xfer->refcnt, wa_xfer_destroy); + d_fnend(3, NULL, "(xfer %p) = void\n", xfer); +} + +/* + * xfer is referenced + * + * xfer->lock has to be unlocked + * + * We take xfer->lock for setting the result; this is a barrier + * against drivers/usb/core/hcd.c:unlink1() being called after we call + * usb_hcd_giveback_urb() and wa_urb_dequeue() trying to get a + * reference to the transfer. + */ +static void wa_xfer_giveback(struct wa_xfer *xfer) +{ + unsigned long flags; + d_fnstart(3, NULL, "(xfer %p)\n", xfer); + spin_lock_irqsave(&xfer->wa->xfer_list_lock, flags); + list_del_init(&xfer->list_node); + spin_unlock_irqrestore(&xfer->wa->xfer_list_lock, flags); + /* FIXME: segmentation broken -- kills DWA */ + wusbhc_giveback_urb(xfer->wa->wusb, xfer->urb, xfer->result); + wa_put(xfer->wa); + wa_xfer_put(xfer); + d_fnend(3, NULL, "(xfer %p) = void\n", xfer); +} + +/* + * xfer is referenced + * + * xfer->lock has to be unlocked + */ +static void wa_xfer_completion(struct wa_xfer *xfer) +{ + d_fnstart(3, NULL, "(xfer %p)\n", xfer); + if (xfer->wusb_dev) + wusb_dev_put(xfer->wusb_dev); + rpipe_put(xfer->ep->hcpriv); + wa_xfer_giveback(xfer); + d_fnend(3, NULL, "(xfer %p) = void\n", xfer); + return; +} + +/* + * If transfer is done, wrap it up and return true + * + * xfer->lock has to be locked + */ +static unsigned __wa_xfer_is_done(struct wa_xfer *xfer) +{ + unsigned result, cnt; + struct wa_seg *seg; + struct urb *urb = xfer->urb; + unsigned found_short = 0; + + d_fnstart(3, NULL, "(xfer %p)\n", xfer); + result = xfer->segs_done == xfer->segs_submitted; + if (result == 0) + goto out; + urb->actual_length = 0; + for (cnt = 0; cnt < xfer->segs; cnt++) { + seg = xfer->seg[cnt]; + switch (seg->status) { + case WA_SEG_DONE: + if (found_short && seg->result > 0) { + if (printk_ratelimit()) + printk(KERN_ERR "xfer %p#%u: bad short " + "segments (%zu)\n", xfer, cnt, + seg->result); + urb->status = -EINVAL; + goto out; + } + urb->actual_length += seg->result; + if (seg->result < xfer->seg_size + && cnt != xfer->segs-1) + found_short = 1; + d_printf(2, NULL, "xfer %p#%u: DONE short %d " + "result %zu urb->actual_length %d\n", + xfer, seg->index, found_short, seg->result, + urb->actual_length); + break; + case WA_SEG_ERROR: + xfer->result = seg->result; + d_printf(2, NULL, "xfer %p#%u: ERROR result %zu\n", + xfer, seg->index, seg->result); + goto out; + case WA_SEG_ABORTED: + WARN_ON(urb->status != -ECONNRESET + && urb->status != -ENOENT); + d_printf(2, NULL, "xfer %p#%u ABORTED: result %d\n", + xfer, seg->index, urb->status); + xfer->result = urb->status; + goto out; + default: + /* if (printk_ratelimit()) */ + printk(KERN_ERR "xfer %p#%u: " + "is_done bad state %d\n", + xfer, cnt, seg->status); + xfer->result = -EINVAL; + WARN_ON(1); + goto out; + } + } + xfer->result = 0; +out: + d_fnend(3, NULL, "(xfer %p) = void\n", xfer); + return result; +} + +/* + * Initialize a transfer's ID + * + * We need to use a sequential number; if we use the pointer or the + * hash of the pointer, it can repeat over sequential transfers and + * then it will confuse the HWA....wonder why in hell they put a 32 + * bit handle in there then. + */ +static void wa_xfer_id_init(struct wa_xfer *xfer) +{ + xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count); +} + +/* + * Return the xfer's ID associated with xfer + * + * Need to generate a + */ +static u32 wa_xfer_id(struct wa_xfer *xfer) +{ + return xfer->id; +} + +/* + * Search for a transfer list ID on the HCD's URB list + * + * For 32 bit architectures, we use the pointer itself; for 64 bits, a + * 32-bit hash of the pointer. + * + * @returns NULL if not found. + */ +static struct wa_xfer *wa_xfer_get_by_id(struct wahc *wa, u32 id) +{ + unsigned long flags; + struct wa_xfer *xfer_itr; + spin_lock_irqsave(&wa->xfer_list_lock, flags); + list_for_each_entry(xfer_itr, &wa->xfer_list, list_node) { + if (id == xfer_itr->id) { + wa_xfer_get(xfer_itr); + goto out; + } + } + xfer_itr = NULL; +out: + spin_unlock_irqrestore(&wa->xfer_list_lock, flags); + return xfer_itr; +} + +struct wa_xfer_abort_buffer { + struct urb urb; + struct wa_xfer_abort cmd; +}; + +static void __wa_xfer_abort_cb(struct urb *urb) +{ + struct wa_xfer_abort_buffer *b = urb->context; + usb_put_urb(&b->urb); +} + +/* + * Aborts an ongoing transaction + * + * Assumes the transfer is referenced and locked and in a submitted + * state (mainly that there is an endpoint/rpipe assigned). + * + * The callback (see above) does nothing but freeing up the data by + * putting the URB. Because the URB is allocated at the head of the + * struct, the whole space we allocated is kfreed. + * + * We'll get an 'aborted transaction' xfer result on DTI, that'll + * politely ignore because at this point the transaction has been + * marked as aborted already. + */ +static void __wa_xfer_abort(struct wa_xfer *xfer) +{ + int result; + struct device *dev = &xfer->wa->usb_iface->dev; + struct wa_xfer_abort_buffer *b; + struct wa_rpipe *rpipe = xfer->ep->hcpriv; + + b = kmalloc(sizeof(*b), GFP_ATOMIC); + if (b == NULL) + goto error_kmalloc; + b->cmd.bLength = sizeof(b->cmd); + b->cmd.bRequestType = WA_XFER_ABORT; + b->cmd.wRPipe = rpipe->descr.wRPipeIndex; + b->cmd.dwTransferID = wa_xfer_id(xfer); + + usb_init_urb(&b->urb); + usb_fill_bulk_urb(&b->urb, xfer->wa->usb_dev, + usb_sndbulkpipe(xfer->wa->usb_dev, + xfer->wa->dto_epd->bEndpointAddress), + &b->cmd, sizeof(b->cmd), __wa_xfer_abort_cb, b); + result = usb_submit_urb(&b->urb, GFP_ATOMIC); + if (result < 0) + goto error_submit; + return; /* callback frees! */ + + +error_submit: + if (printk_ratelimit()) + dev_err(dev, "xfer %p: Can't submit abort request: %d\n", + xfer, result); + kfree(b); +error_kmalloc: + return; + +} + +/* + * + * @returns < 0 on error, transfer segment request size if ok + */ +static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer, + enum wa_xfer_type *pxfer_type) +{ + ssize_t result; + struct device *dev = &xfer->wa->usb_iface->dev; + size_t maxpktsize; + struct urb *urb = xfer->urb; + struct wa_rpipe *rpipe = xfer->ep->hcpriv; + + d_fnstart(3, dev, "(xfer %p [rpipe %p] urb %p)\n", + xfer, rpipe, urb); + switch (rpipe->descr.bmAttribute & 0x3) { + case USB_ENDPOINT_XFER_CONTROL: + *pxfer_type = WA_XFER_TYPE_CTL; + result = sizeof(struct wa_xfer_ctl); + break; + case USB_ENDPOINT_XFER_INT: + case USB_ENDPOINT_XFER_BULK: + *pxfer_type = WA_XFER_TYPE_BI; + result = sizeof(struct wa_xfer_bi); + break; + case USB_ENDPOINT_XFER_ISOC: + dev_err(dev, "FIXME: ISOC not implemented\n"); + result = -ENOSYS; + goto error; + default: + /* never happens */ + BUG(); + result = -EINVAL; /* shut gcc up */ + }; + xfer->is_inbound = urb->pipe & USB_DIR_IN? 1 : 0; + xfer->is_dma = urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP? 1 : 0; + xfer->seg_size = le16_to_cpu(rpipe->descr.wBlocks) + * 1 << (xfer->wa->wa_descr->bRPipeBlockSize - 1); + /* Compute the segment size and make sure it is a multiple of + * the maxpktsize (WUSB1.0[8.3.3.1])...not really too much of + * a check (FIXME) */ + maxpktsize = le16_to_cpu(rpipe->descr.wMaxPacketSize); + if (xfer->seg_size < maxpktsize) { + dev_err(dev, "HW BUG? seg_size %zu smaller than maxpktsize " + "%zu\n", xfer->seg_size, maxpktsize); + result = -EINVAL; + goto error; + } + xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize; + xfer->segs = (urb->transfer_buffer_length + xfer->seg_size - 1) + / xfer->seg_size; + if (xfer->segs >= WA_SEGS_MAX) { + dev_err(dev, "BUG? ops, number of segments %d bigger than %d\n", + (int)(urb->transfer_buffer_length / xfer->seg_size), + WA_SEGS_MAX); + result = -EINVAL; + goto error; + } + if (xfer->segs == 0 && *pxfer_type == WA_XFER_TYPE_CTL) + xfer->segs = 1; +error: + d_fnend(3, dev, "(xfer %p [rpipe %p] urb %p) = %d\n", + xfer, rpipe, urb, (int)result); + return result; +} + +/** Fill in the common request header and xfer-type specific data. */ +static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer, + struct wa_xfer_hdr *xfer_hdr0, + enum wa_xfer_type xfer_type, + size_t xfer_hdr_size) +{ + struct wa_rpipe *rpipe = xfer->ep->hcpriv; + + xfer_hdr0 = &xfer->seg[0]->xfer_hdr; + xfer_hdr0->bLength = xfer_hdr_size; + xfer_hdr0->bRequestType = xfer_type; + xfer_hdr0->wRPipe = rpipe->descr.wRPipeIndex; + xfer_hdr0->dwTransferID = wa_xfer_id(xfer); + xfer_hdr0->bTransferSegment = 0; + switch (xfer_type) { + case WA_XFER_TYPE_CTL: { + struct wa_xfer_ctl *xfer_ctl = + container_of(xfer_hdr0, struct wa_xfer_ctl, hdr); + xfer_ctl->bmAttribute = xfer->is_inbound? 1 : 0; + BUG_ON(xfer->urb->transfer_flags & URB_NO_SETUP_DMA_MAP + && xfer->urb->setup_packet == NULL); + memcpy(&xfer_ctl->baSetupData, xfer->urb->setup_packet, + sizeof(xfer_ctl->baSetupData)); + break; + } + case WA_XFER_TYPE_BI: + break; + case WA_XFER_TYPE_ISO: + printk(KERN_ERR "FIXME: ISOC not implemented\n"); + default: + BUG(); + }; +} + +/* + * Callback for the OUT data phase of the segment request + * + * Check wa_seg_cb(); most comments also apply here because this + * function does almost the same thing and they work closely + * together. + * + * If the seg request has failed but this DTO phase has suceeded, + * wa_seg_cb() has already failed the segment and moved the + * status to WA_SEG_ERROR, so this will go through 'case 0' and + * effectively do nothing. + */ +static void wa_seg_dto_cb(struct urb *urb) +{ + struct wa_seg *seg = urb->context; + struct wa_xfer *xfer = seg->xfer; + struct wahc *wa; + struct device *dev; + struct wa_rpipe *rpipe; + unsigned long flags; + unsigned rpipe_ready = 0; + u8 done = 0; + + d_fnstart(3, NULL, "(urb %p [%d])\n", urb, urb->status); + switch (urb->status) { + case 0: + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + d_printf(2, dev, "xfer %p#%u: data out done (%d bytes)\n", + xfer, seg->index, urb->actual_length); + if (seg->status < WA_SEG_PENDING) + seg->status = WA_SEG_PENDING; + seg->result = urb->actual_length; + spin_unlock_irqrestore(&xfer->lock, flags); + break; + case -ECONNRESET: /* URB unlinked; no need to do anything */ + case -ENOENT: /* as it was done by the who unlinked us */ + break; + default: /* Other errors ... */ + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + rpipe = xfer->ep->hcpriv; + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: data out error %d\n", + xfer, seg->index, urb->status); + if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)){ + dev_err(dev, "DTO: URB max acceptable errors " + "exceeded, resetting device\n"); + usb_dev_reset_delayed(wa->usb_dev); + } + if (seg->status != WA_SEG_ERROR) { + seg->status = WA_SEG_ERROR; + seg->result = urb->status; + xfer->segs_done++; + __wa_xfer_abort(xfer); + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + } + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + } + d_fnend(3, NULL, "(urb %p [%d]) = void\n", urb, urb->status); +} + +/* + * Callback for the segment request + * + * If succesful transition state (unless already transitioned or + * outbound transfer); otherwise, take a note of the error, mark this + * segment done and try completion. + * + * Note we don't access until we are sure that the transfer hasn't + * been cancelled (ECONNRESET, ENOENT), which could mean that + * seg->xfer could be already gone. + * + * We have to check before setting the status to WA_SEG_PENDING + * because sometimes the xfer result callback arrives before this + * callback (geeeeeeze), so it might happen that we are already in + * another state. As well, we don't set it if the transfer is inbound, + * as in that case, wa_seg_dto_cb will do it when the OUT data phase + * finishes. + */ +static void wa_seg_cb(struct urb *urb) +{ + struct wa_seg *seg = urb->context; + struct wa_xfer *xfer = seg->xfer; + struct wahc *wa; + struct device *dev; + struct wa_rpipe *rpipe; + unsigned long flags; + unsigned rpipe_ready; + u8 done = 0; + + d_fnstart(3, NULL, "(urb %p [%d])\n", urb, urb->status); + switch (urb->status) { + case 0: + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + d_printf(2, dev, "xfer %p#%u: request done\n", + xfer, seg->index); + if (xfer->is_inbound && seg->status < WA_SEG_PENDING) + seg->status = WA_SEG_PENDING; + spin_unlock_irqrestore(&xfer->lock, flags); + break; + case -ECONNRESET: /* URB unlinked; no need to do anything */ + case -ENOENT: /* as it was done by the who unlinked us */ + break; + default: /* Other errors ... */ + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + rpipe = xfer->ep->hcpriv; + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: request error %d\n", + xfer, seg->index, urb->status); + if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)){ + dev_err(dev, "DTO: URB max acceptable errors " + "exceeded, resetting device\n"); + usb_dev_reset_delayed(wa->usb_dev); + } + usb_unlink_urb(seg->dto_urb); + seg->status = WA_SEG_ERROR; + seg->result = urb->status; + xfer->segs_done++; + __wa_xfer_abort(xfer); + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + } + d_fnend(3, NULL, "(urb %p [%d]) = void\n", urb, urb->status); +} + +/* + * Allocate the segs array and initialize each of them + * + * The segments are freed by wa_xfer_destroy() when the xfer use count + * drops to zero; however, because each segment is given the same life + * cycle as the USB URB it contains, it is actually freed by + * usb_put_urb() on the contained USB URB (twisted, eh?). + */ +static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) +{ + int result, cnt; + size_t alloc_size = sizeof(*xfer->seg[0]) + - sizeof(xfer->seg[0]->xfer_hdr) + xfer_hdr_size; + struct usb_device *usb_dev = xfer->wa->usb_dev; + const struct usb_endpoint_descriptor *dto_epd = xfer->wa->dto_epd; + struct wa_seg *seg; + size_t buf_itr, buf_size, buf_itr_size; + + result = -ENOMEM; + xfer->seg = kzalloc(xfer->segs * sizeof(xfer->seg[0]), GFP_ATOMIC); + if (xfer->seg == NULL) + goto error_segs_kzalloc; + buf_itr = 0; + buf_size = xfer->urb->transfer_buffer_length; + for (cnt = 0; cnt < xfer->segs; cnt++) { + seg = xfer->seg[cnt] = kzalloc(alloc_size, GFP_ATOMIC); + if (seg == NULL) + goto error_seg_kzalloc; + wa_seg_init(seg); + seg->xfer = xfer; + seg->index = cnt; + usb_fill_bulk_urb(&seg->urb, usb_dev, + usb_sndbulkpipe(usb_dev, + dto_epd->bEndpointAddress), + &seg->xfer_hdr, xfer_hdr_size, + wa_seg_cb, seg); + buf_itr_size = buf_size > xfer->seg_size? + xfer->seg_size : buf_size; + if (xfer->is_inbound == 0 && buf_size > 0) { + seg->dto_urb = usb_alloc_urb(0, GFP_ATOMIC); + if (seg->dto_urb == NULL) + goto error_dto_alloc; + usb_fill_bulk_urb( + seg->dto_urb, usb_dev, + usb_sndbulkpipe(usb_dev, + dto_epd->bEndpointAddress), + NULL, 0, wa_seg_dto_cb, seg); + if (xfer->is_dma) { + seg->dto_urb->transfer_dma = + xfer->urb->transfer_dma + buf_itr; + seg->dto_urb->transfer_flags |= + URB_NO_TRANSFER_DMA_MAP; + } else + seg->dto_urb->transfer_buffer = + xfer->urb->transfer_buffer + buf_itr; + seg->dto_urb->transfer_buffer_length = buf_itr_size; + } + seg->status = WA_SEG_READY; + buf_itr += buf_itr_size; + buf_size -= buf_itr_size; + } + return 0; + +error_dto_alloc: + kfree(xfer->seg[cnt]); + cnt--; +error_seg_kzalloc: + /* use the fact that cnt is left at were it failed */ + for (; cnt > 0; cnt--) { + if (xfer->is_inbound == 0) + kfree(xfer->seg[cnt]->dto_urb); + kfree(xfer->seg[cnt]); + } +error_segs_kzalloc: + return result; +} + +/* + * Allocates all the stuff needed to submit a transfer + * + * Breaks the whole data buffer in a list of segments, each one has a + * structure allocated to it and linked in xfer->seg[index] + * + * FIXME: merge setup_segs() and the last part of this function, no + * need to do two for loops when we could run everything in a + * single one + */ +static int __wa_xfer_setup(struct wa_xfer *xfer, struct urb *urb) +{ + int result; + struct device *dev = &xfer->wa->usb_iface->dev; + enum wa_xfer_type xfer_type = 0; /* shut up GCC */ + size_t xfer_hdr_size, cnt, transfer_size; + struct wa_xfer_hdr *xfer_hdr0, *xfer_hdr; + + d_fnstart(3, dev, "(xfer %p [rpipe %p] urb %p)\n", + xfer, xfer->ep->hcpriv, urb); + + result = __wa_xfer_setup_sizes(xfer, &xfer_type); + if (result < 0) + goto error_setup_sizes; + xfer_hdr_size = result; + result = __wa_xfer_setup_segs(xfer, xfer_hdr_size); + if (result < 0) { + dev_err(dev, "xfer %p: Failed to allocate %d segments: %d\n", + xfer, xfer->segs, result); + goto error_setup_segs; + } + /* Fill the first header */ + xfer_hdr0 = &xfer->seg[0]->xfer_hdr; + wa_xfer_id_init(xfer); + __wa_xfer_setup_hdr0(xfer, xfer_hdr0, xfer_type, xfer_hdr_size); + + /* Fill remainig headers */ + xfer_hdr = xfer_hdr0; + transfer_size = urb->transfer_buffer_length; + xfer_hdr0->dwTransferLength = transfer_size > xfer->seg_size? + xfer->seg_size : transfer_size; + transfer_size -= xfer->seg_size; + for (cnt = 1; cnt < xfer->segs; cnt++) { + xfer_hdr = &xfer->seg[cnt]->xfer_hdr; + memcpy(xfer_hdr, xfer_hdr0, xfer_hdr_size); + xfer_hdr->bTransferSegment = cnt; + xfer_hdr->dwTransferLength = transfer_size > xfer->seg_size? + cpu_to_le32(xfer->seg_size) + : cpu_to_le32(transfer_size); + xfer->seg[cnt]->status = WA_SEG_READY; + transfer_size -= xfer->seg_size; + } + xfer_hdr->bTransferSegment |= 0x80; /* this is the last segment */ + result = 0; +error_setup_segs: +error_setup_sizes: + d_fnend(3, dev, "(xfer %p [rpipe %p] urb %p) = %d\n", + xfer, xfer->ep->hcpriv, urb, result); + return result; +} + +/* + * + * + * rpipe->seg_lock is held! + */ +static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer, + struct wa_seg *seg) +{ + int result; + result = usb_submit_urb(&seg->urb, GFP_ATOMIC); + if (result < 0) { + printk(KERN_ERR "xfer %p#%u: REQ submit failed: %d\n", + xfer, seg->index, result); + goto error_seg_submit; + } + if (seg->dto_urb) { + result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC); + if (result < 0) { + printk(KERN_ERR "xfer %p#%u: DTO submit failed: %d\n", + xfer, seg->index, result); + goto error_dto_submit; + } + } + seg->status = WA_SEG_SUBMITTED; + rpipe_avail_dec(rpipe); + return 0; + +error_dto_submit: + usb_unlink_urb(&seg->urb); +error_seg_submit: + seg->status = WA_SEG_ERROR; + seg->result = result; + return result; +} + +/* + * Execute more queued request segments until the maximum concurrent allowed + * + * The ugly unlock/lock sequence on the error path is needed as the + * xfer->lock normally nests the seg_lock and not viceversa. + * + */ +static void wa_xfer_delayed_run(struct wa_rpipe *rpipe) +{ + int result; + struct device *dev = &rpipe->wa->usb_iface->dev; + struct wa_seg *seg; + struct wa_xfer *xfer; + unsigned long flags; + + d_fnstart(1, dev, "(rpipe #%d) %d segments available\n", + le16_to_cpu(rpipe->descr.wRPipeIndex), + atomic_read(&rpipe->segs_available)); + spin_lock_irqsave(&rpipe->seg_lock, flags); + while (atomic_read(&rpipe->segs_available) > 0 + && !list_empty(&rpipe->seg_list)) { + seg = list_entry(rpipe->seg_list.next, struct wa_seg, + list_node); + list_del(&seg->list_node); + xfer = seg->xfer; + result = __wa_seg_submit(rpipe, xfer, seg); + d_printf(1, dev, "xfer %p#%u submitted from delayed " + "[%d segments available] %d\n", + xfer, seg->index, + atomic_read(&rpipe->segs_available), result); + if (unlikely(result < 0)) { + spin_unlock_irqrestore(&rpipe->seg_lock, flags); + spin_lock_irqsave(&xfer->lock, flags); + __wa_xfer_abort(xfer); + xfer->segs_done++; + spin_unlock_irqrestore(&xfer->lock, flags); + spin_lock_irqsave(&rpipe->seg_lock, flags); + } + } + spin_unlock_irqrestore(&rpipe->seg_lock, flags); + d_fnend(1, dev, "(rpipe #%d) = void, %d segments available\n", + le16_to_cpu(rpipe->descr.wRPipeIndex), + atomic_read(&rpipe->segs_available)); + +} + +/* + * + * xfer->lock is taken + * + * On failure submitting we just stop submitting and return error; + * wa_urb_enqueue_b() will execute the completion path + */ +static int __wa_xfer_submit(struct wa_xfer *xfer) +{ + int result; + struct wahc *wa = xfer->wa; + struct device *dev = &wa->usb_iface->dev; + unsigned cnt; + struct wa_seg *seg; + unsigned long flags; + struct wa_rpipe *rpipe = xfer->ep->hcpriv; + size_t maxrequests = le16_to_cpu(rpipe->descr.wRequests); + u8 available; + u8 empty; + + d_fnstart(3, dev, "(xfer %p [rpipe %p])\n", + xfer, xfer->ep->hcpriv); + + spin_lock_irqsave(&wa->xfer_list_lock, flags); + list_add_tail(&xfer->list_node, &wa->xfer_list); + spin_unlock_irqrestore(&wa->xfer_list_lock, flags); + + BUG_ON(atomic_read(&rpipe->segs_available) > maxrequests); + result = 0; + spin_lock_irqsave(&rpipe->seg_lock, flags); + for (cnt = 0; cnt < xfer->segs; cnt++) { + available = atomic_read(&rpipe->segs_available); + empty = list_empty(&rpipe->seg_list); + seg = xfer->seg[cnt]; + d_printf(2, dev, "xfer %p#%u: available %u empty %u (%s)\n", + xfer, cnt, available, empty, + available == 0 || !empty? "delayed" : "submitted"); + if (available == 0 || !empty) { + d_printf(1, dev, "xfer %p#%u: delayed\n", xfer, cnt); + seg->status = WA_SEG_DELAYED; + list_add_tail(&seg->list_node, &rpipe->seg_list); + } else { + result = __wa_seg_submit(rpipe, xfer, seg); + if (result < 0) + goto error_seg_submit; + } + xfer->segs_submitted++; + } + spin_unlock_irqrestore(&rpipe->seg_lock, flags); + d_fnend(3, dev, "(xfer %p [rpipe %p]) = void\n", xfer, + xfer->ep->hcpriv); + return result; + +error_seg_submit: + __wa_xfer_abort(xfer); + spin_unlock_irqrestore(&rpipe->seg_lock, flags); + d_fnend(3, dev, "(xfer %p [rpipe %p]) = void\n", xfer, + xfer->ep->hcpriv); + return result; +} + +/* + * Second part of a URB/transfer enqueuement + * + * Assumes this comes from wa_urb_enqueue() [maybe through + * wa_urb_enqueue_run()]. At this point: + * + * xfer->wa filled and refcounted + * xfer->ep filled with rpipe refcounted if + * delayed == 0 + * xfer->urb filled and refcounted (this is the case when called + * from wa_urb_enqueue() as we come from usb_submit_urb() + * and when called by wa_urb_enqueue_run(), as we took an + * extra ref dropped by _run() after we return). + * xfer->gfp filled + * + * If we fail at __wa_xfer_submit(), then we just check if we are done + * and if so, we run the completion procedure. However, if we are not + * yet done, we do nothing and wait for the completion handlers from + * the submitted URBs or from the xfer-result path to kick in. If xfer + * result never kicks in, the xfer will timeout from the USB code and + * dequeue() will be called. + */ +static void wa_urb_enqueue_b(struct wa_xfer *xfer) +{ + int result; + unsigned long flags; + struct urb *urb = xfer->urb; + struct wahc *wa = xfer->wa; + struct wusbhc *wusbhc = wa->wusb; + struct device *dev = &wa->usb_iface->dev; + struct wusb_dev *wusb_dev; + unsigned done; + + d_fnstart(3, dev, "(wa %p urb %p)\n", wa, urb); + result = rpipe_get_by_ep(wa, xfer->ep, urb, xfer->gfp); + if (result < 0) + goto error_rpipe_get; + result = -ENODEV; + /* FIXME: segmentation broken -- kills DWA */ + mutex_lock(&wusbhc->mutex); /* get a WUSB dev */ + if (urb->dev == NULL) + goto error_dev_gone; + wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev); + if (wusb_dev == NULL) { + mutex_unlock(&wusbhc->mutex); + goto error_dev_gone; + } + mutex_unlock(&wusbhc->mutex); + + spin_lock_irqsave(&xfer->lock, flags); + xfer->wusb_dev = wusb_dev; + result = urb->status; + if (urb->status != -EINPROGRESS) + goto error_dequeued; + + result = __wa_xfer_setup(xfer, urb); + if (result < 0) + goto error_xfer_setup; + result = __wa_xfer_submit(xfer); + if (result < 0) + goto error_xfer_submit; + spin_unlock_irqrestore(&xfer->lock, flags); + d_fnend(3, dev, "(wa %p urb %p) = void\n", wa, urb); + return; + + /* this is basically wa_xfer_completion() broken up wa_xfer_giveback() + * does a wa_xfer_put() that will call wa_xfer_destroy() and clean + * upundo setup(). + */ +error_xfer_setup: +error_dequeued: + spin_unlock_irqrestore(&xfer->lock, flags); + /* FIXME: segmentation broken, kills DWA */ + if (wusb_dev) + wusb_dev_put(wusb_dev); +error_dev_gone: + rpipe_put(xfer->ep->hcpriv); +error_rpipe_get: + xfer->result = result; + wa_xfer_giveback(xfer); + d_fnend(3, dev, "(wa %p urb %p) = (void) %d\n", wa, urb, result); + return; + +error_xfer_submit: + done = __wa_xfer_is_done(xfer); + xfer->result = result; + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + d_fnend(3, dev, "(wa %p urb %p) = (void) %d\n", wa, urb, result); + return; +} + +/* + * Execute the delayed transfers in the Wire Adapter @wa + * + * We need to be careful here, as dequeue() could be called in the + * middle. That's why we do the whole thing under the + * wa->xfer_list_lock. If dequeue() jumps in, it first locks urb->lock + * and then checks the list -- so as we would be acquiring in inverse + * order, we just drop the lock once we have the xfer and reacquire it + * later. + */ +void wa_urb_enqueue_run(struct work_struct *ws) +{ + struct wahc *wa = container_of(ws, struct wahc, xfer_work); + struct device *dev = &wa->usb_iface->dev; + struct wa_xfer *xfer, *next; + struct urb *urb; + + d_fnstart(3, dev, "(wa %p)\n", wa); + spin_lock_irq(&wa->xfer_list_lock); + list_for_each_entry_safe(xfer, next, &wa->xfer_delayed_list, + list_node) { + list_del_init(&xfer->list_node); + spin_unlock_irq(&wa->xfer_list_lock); + + urb = xfer->urb; + wa_urb_enqueue_b(xfer); + usb_put_urb(urb); /* taken when queuing */ + + spin_lock_irq(&wa->xfer_list_lock); + } + spin_unlock_irq(&wa->xfer_list_lock); + d_fnend(3, dev, "(wa %p) = void\n", wa); +} +EXPORT_SYMBOL_GPL(wa_urb_enqueue_run); + +/* + * Submit a transfer to the Wire Adapter in a delayed way + * + * The process of enqueuing involves possible sleeps() [see + * enqueue_b(), for the rpipe_get() and the mutex_lock()]. If we are + * in an atomic section, we defer the enqueue_b() call--else we call direct. + * + * @urb: We own a reference to it done by the HCI Linux USB stack that + * will be given up by calling usb_hcd_giveback_urb() or by + * returning error from this function -> ergo we don't have to + * refcount it. + */ +int wa_urb_enqueue(struct wahc *wa, struct usb_host_endpoint *ep, + struct urb *urb, gfp_t gfp) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + struct wa_xfer *xfer; + unsigned long my_flags; + unsigned cant_sleep = irqs_disabled() | in_atomic(); + + d_fnstart(3, dev, "(wa %p ep %p urb %p [%d] gfp 0x%x)\n", + wa, ep, urb, urb->transfer_buffer_length, gfp); + + if (urb->transfer_buffer == NULL + && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) + && urb->transfer_buffer_length != 0) { + dev_err(dev, "BUG? urb %p: NULL xfer buffer & NODMA\n", urb); + dump_stack(); + } + + result = -ENOMEM; + xfer = kzalloc(sizeof(*xfer), gfp); + if (xfer == NULL) + goto error_kmalloc; + + result = -ENOENT; + if (urb->status != -EINPROGRESS) /* cancelled */ + goto error_dequeued; /* before starting? */ + wa_xfer_init(xfer); + xfer->wa = wa_get(wa); + xfer->urb = urb; + xfer->gfp = gfp; + xfer->ep = ep; + urb->hcpriv = xfer; + d_printf(2, dev, "xfer %p urb %p pipe 0x%02x [%d bytes] %s %s %s\n", + xfer, urb, urb->pipe, urb->transfer_buffer_length, + urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP? "dma" : "nodma", + urb->pipe & USB_DIR_IN? "inbound" : "outbound", + cant_sleep? "deferred" : "inline"); + if (cant_sleep) { + usb_get_urb(urb); + spin_lock_irqsave(&wa->xfer_list_lock, my_flags); + list_add_tail(&xfer->list_node, &wa->xfer_delayed_list); + spin_unlock_irqrestore(&wa->xfer_list_lock, my_flags); + queue_work(wusbd, &wa->xfer_work); + } else { + wa_urb_enqueue_b(xfer); + } + d_fnend(3, dev, "(wa %p ep %p urb %p [%d] gfp 0x%x) = 0\n", + wa, ep, urb, urb->transfer_buffer_length, gfp); + return 0; + +error_dequeued: + kfree(xfer); +error_kmalloc: + d_fnend(3, dev, "(wa %p ep %p urb %p [%d] gfp 0x%x) = %d\n", + wa, ep, urb, urb->transfer_buffer_length, gfp, result); + return result; +} +EXPORT_SYMBOL_GPL(wa_urb_enqueue); + +/* + * Dequeue a URB and make sure uwb_hcd_giveback_urb() [completion + * handler] is called. + * + * Until a transfer goes successfully through wa_urb_enqueue() it + * needs to be dequeued with completion calling; when stuck in delayed + * or before wa_xfer_setup() is called, we need to do completion. + * + * not setup If there is no hcpriv yet, that means that that enqueue + * still had no time to set the xfer up. Because + * urb->status should be other than -EINPROGRESS, + * enqueue() will catch that and bail out. + * + * If the transfer has gone through setup, we just need to clean it + * up. If it has gone through submit(), we have to abort it [with an + * asynch request] and then make sure we cancel each segment. + * + */ +int wa_urb_dequeue(struct wahc *wa, struct urb *urb) +{ + struct device *dev = &wa->usb_iface->dev; + unsigned long flags, flags2; + struct wa_xfer *xfer; + struct wa_seg *seg; + struct wa_rpipe *rpipe; + unsigned cnt; + unsigned rpipe_ready = 0; + + d_fnstart(3, dev, "(wa %p, urb %p)\n", wa, urb); + + d_printf(1, dev, "xfer %p urb %p: aborting\n", urb->hcpriv, urb); + xfer = urb->hcpriv; + if (xfer == NULL) { + /* NOthing setup yet enqueue will see urb->status != + * -EINPROGRESS (by hcd layer) and bail out with + * error, no need to do completion + */ + BUG_ON(urb->status == -EINPROGRESS); + goto out; + } + spin_lock_irqsave(&xfer->lock, flags); + rpipe = xfer->ep->hcpriv; + /* Check the delayed list -> if there, release and complete */ + spin_lock_irqsave(&wa->xfer_list_lock, flags2); + if (!list_empty(&xfer->list_node) && xfer->seg == NULL) + goto dequeue_delayed; + spin_unlock_irqrestore(&wa->xfer_list_lock, flags2); + if (xfer->seg == NULL) /* still hasn't reached */ + goto out_unlock; /* setup(), enqueue_b() completes */ + /* Ok, the xfer is in flight already, it's been setup and submitted.*/ + __wa_xfer_abort(xfer); + for (cnt = 0; cnt < xfer->segs; cnt++) { + seg = xfer->seg[cnt]; + switch (seg->status) { + case WA_SEG_NOTREADY: + case WA_SEG_READY: + printk(KERN_ERR "xfer %p#%u: dequeue bad state %u\n", + xfer, cnt, seg->status); + WARN_ON(1); + break; + case WA_SEG_DELAYED: + seg->status = WA_SEG_ABORTED; + spin_lock_irqsave(&rpipe->seg_lock, flags2); + list_del(&seg->list_node); + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + spin_unlock_irqrestore(&rpipe->seg_lock, flags2); + break; + case WA_SEG_SUBMITTED: + seg->status = WA_SEG_ABORTED; + usb_unlink_urb(&seg->urb); + if (xfer->is_inbound == 0) + usb_unlink_urb(seg->dto_urb); + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + break; + case WA_SEG_PENDING: + seg->status = WA_SEG_ABORTED; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + break; + case WA_SEG_DTI_PENDING: + usb_unlink_urb(wa->dti_urb); + seg->status = WA_SEG_ABORTED; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + break; + case WA_SEG_DONE: + case WA_SEG_ERROR: + case WA_SEG_ABORTED: + break; + } + } + xfer->result = urb->status; /* -ENOENT or -ECONNRESET */ + __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + d_fnend(3, dev, "(wa %p, urb %p) = 0\n", wa, urb); + return 0; + +out_unlock: + spin_unlock_irqrestore(&xfer->lock, flags); +out: + d_fnend(3, dev, "(wa %p, urb %p) = 0\n", wa, urb); + return 0; + +dequeue_delayed: + list_del_init(&xfer->list_node); + spin_unlock_irqrestore(&wa->xfer_list_lock, flags2); + xfer->result = urb->status; + spin_unlock_irqrestore(&xfer->lock, flags); + wa_xfer_giveback(xfer); + usb_put_urb(urb); /* we got a ref in enqueue() */ + d_fnend(3, dev, "(wa %p, urb %p) = 0\n", wa, urb); + return 0; +} +EXPORT_SYMBOL_GPL(wa_urb_dequeue); + +/* + * Translation from WA status codes (WUSB1.0 Table 8.15) to errno + * codes + * + * Positive errno values are internal inconsistencies and should be + * flagged louder. Negative are to be passed up to the user in the + * normal way. + * + * @status: USB WA status code -- high two bits are stripped. + */ +static int wa_xfer_status_to_errno(u8 status) +{ + int errno; + u8 real_status = status; + static int xlat[] = { + [WA_XFER_STATUS_SUCCESS] = 0, + [WA_XFER_STATUS_HALTED] = -EPIPE, + [WA_XFER_STATUS_DATA_BUFFER_ERROR] = -ENOBUFS, + [WA_XFER_STATUS_BABBLE] = -EOVERFLOW, + [WA_XFER_RESERVED] = EINVAL, + [WA_XFER_STATUS_NOT_FOUND] = 0, + [WA_XFER_STATUS_INSUFFICIENT_RESOURCE] = -ENOMEM, + [WA_XFER_STATUS_TRANSACTION_ERROR] = -EILSEQ, + [WA_XFER_STATUS_ABORTED] = -EINTR, + [WA_XFER_STATUS_RPIPE_NOT_READY] = EINVAL, + [WA_XFER_INVALID_FORMAT] = EINVAL, + [WA_XFER_UNEXPECTED_SEGMENT_NUMBER] = EINVAL, + [WA_XFER_STATUS_RPIPE_TYPE_MISMATCH] = EINVAL, + }; + status &= 0x3f; + + if (status == 0) + return 0; + if (status >= ARRAY_SIZE(xlat)) { + if (printk_ratelimit()) + printk(KERN_ERR "%s(): BUG? " + "Unknown WA transfer status 0x%02x\n", + __func__, real_status); + return -EINVAL; + } + errno = xlat[status]; + if (unlikely(errno > 0)) { + if (printk_ratelimit()) + printk(KERN_ERR "%s(): BUG? " + "Inconsistent WA status: 0x%02x\n", + __func__, real_status); + errno = -errno; + } + return errno; +} + +/* + * Process a xfer result completion message + * + * inbound transfers: need to schedule a DTI read + * + * FIXME: this functio needs to be broken up in parts + */ +static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + unsigned long flags; + u8 seg_idx; + struct wa_seg *seg; + struct wa_rpipe *rpipe; + struct wa_xfer_result *xfer_result = wa->xfer_result; + u8 done = 0; + u8 usb_status; + unsigned rpipe_ready = 0; + + d_fnstart(3, dev, "(wa %p xfer %p)\n", wa, xfer); + spin_lock_irqsave(&xfer->lock, flags); + seg_idx = xfer_result->bTransferSegment & 0x7f; + if (unlikely(seg_idx >= xfer->segs)) + goto error_bad_seg; + seg = xfer->seg[seg_idx]; + rpipe = xfer->ep->hcpriv; + usb_status = xfer_result->bTransferStatus; + d_printf(2, dev, "xfer %p#%u: bTransferStatus 0x%02x (seg %u)\n", + xfer, seg_idx, usb_status, seg->status); + if (seg->status == WA_SEG_ABORTED + || seg->status == WA_SEG_ERROR) /* already handled */ + goto segment_aborted; + if (seg->status == WA_SEG_SUBMITTED) /* ops, got here */ + seg->status = WA_SEG_PENDING; /* before wa_seg{_dto}_cb() */ + if (seg->status != WA_SEG_PENDING) { + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: Bad segment state %u\n", + xfer, seg_idx, seg->status); + seg->status = WA_SEG_PENDING; /* workaround/"fix" it */ + } + if (usb_status & 0x80) { + seg->result = wa_xfer_status_to_errno(usb_status); + dev_err(dev, "DTI: xfer %p#%u failed (0x%02x)\n", + xfer, seg->index, usb_status); + goto error_complete; + } + /* FIXME: we ignore warnings, tally them for stats */ + if (usb_status & 0x40) /* Warning?... */ + usb_status = 0; /* ... pass */ + if (xfer->is_inbound) { /* IN data phase: read to buffer */ + seg->status = WA_SEG_DTI_PENDING; + BUG_ON(wa->buf_in_urb->status == -EINPROGRESS); + if (xfer->is_dma) { + wa->buf_in_urb->transfer_dma = + xfer->urb->transfer_dma + + seg_idx * xfer->seg_size; + wa->buf_in_urb->transfer_flags + |= URB_NO_TRANSFER_DMA_MAP; + } else { + wa->buf_in_urb->transfer_buffer = + xfer->urb->transfer_buffer + + seg_idx * xfer->seg_size; + wa->buf_in_urb->transfer_flags + &= ~URB_NO_TRANSFER_DMA_MAP; + } + wa->buf_in_urb->transfer_buffer_length = + le32_to_cpu(xfer_result->dwTransferLength); + wa->buf_in_urb->context = seg; + result = usb_submit_urb(wa->buf_in_urb, GFP_ATOMIC); + if (result < 0) + goto error_submit_buf_in; + } else { + /* OUT data phase, complete it -- */ + seg->status = WA_SEG_DONE; + seg->result = le32_to_cpu(xfer_result->dwTransferLength); + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + } + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + d_fnend(3, dev, "(wa %p xfer %p) = void\n", wa, xfer); + return; + + +error_submit_buf_in: + if (edc_inc(&wa->dti_edc, EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "DTI: URB max acceptable errors " + "exceeded, resetting device\n"); + usb_dev_reset_delayed(wa->usb_dev); + } + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: can't submit DTI data phase: %d\n", + xfer, seg_idx, result); + seg->result = result; +error_complete: + seg->status = WA_SEG_ERROR; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + __wa_xfer_abort(xfer); + done = __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + d_fnend(3, dev, "(wa %p xfer %p) = void [segment/DTI-submit error]\n", + wa, xfer); + return; + + +error_bad_seg: + spin_unlock_irqrestore(&xfer->lock, flags); + wa_urb_dequeue(wa, xfer->urb); + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: bad segment\n", xfer, seg_idx); + if (edc_inc(&wa->dti_edc, EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "DTI: URB max acceptable errors " + "exceeded, resetting device\n"); + usb_dev_reset_delayed(wa->usb_dev); + } + d_fnend(3, dev, "(wa %p xfer %p) = void [bad seg]\n", wa, xfer); + return; + + +segment_aborted: + /* nothing to do, as the aborter did the completion */ + spin_unlock_irqrestore(&xfer->lock, flags); + d_fnend(3, dev, "(wa %p xfer %p) = void [segment aborted]\n", + wa, xfer); + return; + +} + +/* + * Callback for the IN data phase + * + * If succesful transition state; otherwise, take a note of the + * error, mark this segment done and try completion. + * + * Note we don't access until we are sure that the transfer hasn't + * been cancelled (ECONNRESET, ENOENT), which could mean that + * seg->xfer could be already gone. + */ +static void wa_buf_in_cb(struct urb *urb) +{ + struct wa_seg *seg = urb->context; + struct wa_xfer *xfer = seg->xfer; + struct wahc *wa; + struct device *dev; + struct wa_rpipe *rpipe; + unsigned rpipe_ready; + unsigned long flags; + u8 done = 0; + + d_fnstart(3, NULL, "(urb %p [%d])\n", urb, urb->status); + switch (urb->status) { + case 0: + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + rpipe = xfer->ep->hcpriv; + d_printf(2, dev, "xfer %p#%u: data in done (%zu bytes)\n", + xfer, seg->index, (size_t)urb->actual_length); + seg->status = WA_SEG_DONE; + seg->result = urb->actual_length; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + break; + case -ECONNRESET: /* URB unlinked; no need to do anything */ + case -ENOENT: /* as it was done by the who unlinked us */ + break; + default: /* Other errors ... */ + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + rpipe = xfer->ep->hcpriv; + if (printk_ratelimit()) + dev_err(dev, "xfer %p#%u: data in error %d\n", + xfer, seg->index, urb->status); + if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)){ + dev_err(dev, "DTO: URB max acceptable errors " + "exceeded, resetting device\n"); + usb_dev_reset_delayed(wa->usb_dev); + } + seg->status = WA_SEG_ERROR; + seg->result = urb->status; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + __wa_xfer_abort(xfer); + done = __wa_xfer_is_done(xfer); + spin_unlock_irqrestore(&xfer->lock, flags); + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + } + d_fnend(3, NULL, "(urb %p [%d]) = void\n", urb, urb->status); +} + +/* + * Handle an incoming transfer result buffer + * + * Given a transfer result buffer, it completes the transfer (possibly + * scheduling and buffer in read) and then resubmits the DTI URB for a + * new transfer result read. + * + * + * The xfer_result DTI URB state machine + * + * States: OFF | RXR (Read-Xfer-Result) | RBI (Read-Buffer-In) + * + * We start in OFF mode, the first xfer_result notification [through + * wa_handle_notif_xfer()] moves us to RXR by posting the DTI-URB to + * read. + * + * We receive a buffer -- if it is not a xfer_result, we complain and + * repost the DTI-URB. If it is a xfer_result then do the xfer seg + * request accounting. If it is an IN segment, we move to RBI and post + * a BUF-IN-URB to the right buffer. The BUF-IN-URB callback will + * repost the DTI-URB and move to RXR state. if there was no IN + * segment, it will repost the DTI-URB. + * + * We go back to OFF when we detect a ENOENT or ESHUTDOWN (or too many + * errors) in the URBs. + */ +static void wa_xfer_result_cb(struct urb *urb) +{ + int result; + struct wahc *wa = urb->context; + struct device *dev = &wa->usb_iface->dev; + struct wa_xfer_result *xfer_result; + u32 xfer_id; + struct wa_xfer *xfer; + u8 usb_status; + + d_fnstart(3, dev, "(%p)\n", wa); + BUG_ON(wa->dti_urb != urb); + switch (wa->dti_urb->status) { + case 0: + /* We have a xfer result buffer; check it */ + d_printf(2, dev, "DTI: xfer result %d bytes at %p\n", + urb->actual_length, urb->transfer_buffer); + d_dump(3, dev, urb->transfer_buffer, urb->actual_length); + if (wa->dti_urb->actual_length != sizeof(*xfer_result)) { + dev_err(dev, "DTI Error: xfer result--bad size " + "xfer result (%d bytes vs %zu needed)\n", + urb->actual_length, sizeof(*xfer_result)); + break; + } + xfer_result = wa->xfer_result; + if (xfer_result->hdr.bLength != sizeof(*xfer_result)) { + dev_err(dev, "DTI Error: xfer result--" + "bad header length %u\n", + xfer_result->hdr.bLength); + break; + } + if (xfer_result->hdr.bNotifyType != WA_XFER_RESULT) { + dev_err(dev, "DTI Error: xfer result--" + "bad header type 0x%02x\n", + xfer_result->hdr.bNotifyType); + break; + } + usb_status = xfer_result->bTransferStatus & 0x3f; + if (usb_status == WA_XFER_STATUS_ABORTED + || usb_status == WA_XFER_STATUS_NOT_FOUND) + /* taken care of already */ + break; + xfer_id = xfer_result->dwTransferID; + xfer = wa_xfer_get_by_id(wa, xfer_id); + if (xfer == NULL) { + /* FIXME: transaction might have been cancelled */ + dev_err(dev, "DTI Error: xfer result--" + "unknown xfer 0x%08x (status 0x%02x)\n", + xfer_id, usb_status); + break; + } + wa_xfer_result_chew(wa, xfer); + wa_xfer_put(xfer); + break; + case -ENOENT: /* (we killed the URB)...so, no broadcast */ + case -ESHUTDOWN: /* going away! */ + dev_dbg(dev, "DTI: going down! %d\n", urb->status); + goto out; + default: + /* Unknown error */ + if (edc_inc(&wa->dti_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "DTI: URB max acceptable errors " + "exceeded, resetting device\n"); + usb_dev_reset_delayed(wa->usb_dev); + goto out; + } + if (printk_ratelimit()) + dev_err(dev, "DTI: URB error %d\n", urb->status); + break; + } + /* Resubmit the DTI URB */ + result = usb_submit_urb(wa->dti_urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "DTI Error: Could not submit DTI URB (%d), " + "resetting\n", result); + usb_dev_reset_delayed(wa->usb_dev); + } +out: + d_fnend(3, dev, "(%p) = void\n", wa); + return; +} + +/* + * Transfer complete notification + * + * Called from the notif.c code. We get a notification on EP2 saying + * that some endpoint has some transfer result data available. We are + * about to read it. + * + * To speed up things, we always have a URB reading the DTI URB; we + * don't really set it up and start it until the first xfer complete + * notification arrives, which is what we do here. + * + * Follow up in wa_xfer_result_cb(), as that's where the whole state + * machine starts. + * + * So here we just initialize the DTI URB for reading transfer result + * notifications and also the buffer-in URB, for reading buffers. Then + * we just submit the DTI URB. + * + * @wa shall be referenced + */ +void wa_handle_notif_xfer(struct wahc *wa, struct wa_notif_hdr *notif_hdr) +{ + int result; + struct device *dev = &wa->usb_iface->dev; + struct wa_notif_xfer *notif_xfer; + const struct usb_endpoint_descriptor *dti_epd = wa->dti_epd; + + d_fnstart(4, dev, "(%p, %p)\n", wa, notif_hdr); + notif_xfer = container_of(notif_hdr, struct wa_notif_xfer, hdr); + BUG_ON(notif_hdr->bNotifyType != WA_NOTIF_TRANSFER); + + if ((0x80 | notif_xfer->bEndpoint) != dti_epd->bEndpointAddress) { + /* FIXME: hardcoded limitation, adapt */ + dev_err(dev, "BUG: DTI ep is %u, not %u (hack me)\n", + notif_xfer->bEndpoint, dti_epd->bEndpointAddress); + goto error; + } + if (wa->dti_urb != NULL) /* DTI URB already started */ + goto out; + + wa->dti_urb = usb_alloc_urb(0, GFP_KERNEL); + if (wa->dti_urb == NULL) { + dev_err(dev, "Can't allocate DTI URB\n"); + goto error_dti_urb_alloc; + } + usb_fill_bulk_urb( + wa->dti_urb, wa->usb_dev, + usb_rcvbulkpipe(wa->usb_dev, 0x80 | notif_xfer->bEndpoint), + wa->xfer_result, wa->xfer_result_size, + wa_xfer_result_cb, wa); + + wa->buf_in_urb = usb_alloc_urb(0, GFP_KERNEL); + if (wa->buf_in_urb == NULL) { + dev_err(dev, "Can't allocate BUF-IN URB\n"); + goto error_buf_in_urb_alloc; + } + usb_fill_bulk_urb( + wa->buf_in_urb, wa->usb_dev, + usb_rcvbulkpipe(wa->usb_dev, 0x80 | notif_xfer->bEndpoint), + NULL, 0, wa_buf_in_cb, wa); + result = usb_submit_urb(wa->dti_urb, GFP_KERNEL); + if (result < 0) { + dev_err(dev, "DTI Error: Could not submit DTI URB (%d), " + "resetting\n", result); + goto error_dti_urb_submit; + } +out: + d_fnend(4, dev, "(%p, %p) = void\n", wa, notif_hdr); + return; + +error_dti_urb_submit: + usb_put_urb(wa->buf_in_urb); +error_buf_in_urb_alloc: + usb_put_urb(wa->dti_urb); + wa->dti_urb = NULL; +error_dti_urb_alloc: +error: + usb_dev_reset_delayed(wa->usb_dev); + d_fnend(4, dev, "(%p, %p) = void\n", wa, notif_hdr); + return; +} diff --git a/drivers/usb/wusbcore/wusbhc.c b/drivers/usb/wusbcore/wusbhc.c new file mode 100644 index 000000000000..135b541bf3e3 --- /dev/null +++ b/drivers/usb/wusbcore/wusbhc.c @@ -0,0 +1,392 @@ +/* + * Wireless USB Host Controller + * sysfs glue, wusbcore module support and life cycle management + * + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Creation/destruction of wusbhc is split in two parts; that that + * doesn't require the HCD to be added (wusbhc_{create,destroy}) and + * the one that requires (phase B, wusbhc_b_{create,destroy}). + * + * This is so because usb_add_hcd() will start the HC, and thus, all + * the HC specific stuff has to be already initialiazed (like sysfs + * thingies). + */ +#include <linux/device.h> +#include <linux/module.h> +#include "wusbhc.h" + +/** + * Extract the wusbhc that corresponds to a USB Host Controller class device + * + * WARNING! Apply only if @dev is that of a + * wusbhc.usb_hcd.self->class_dev; otherwise, you loose. + */ +static struct wusbhc *usbhc_dev_to_wusbhc(struct device *dev) +{ + struct usb_bus *usb_bus = dev_get_drvdata(dev); + struct usb_hcd *usb_hcd = bus_to_hcd(usb_bus); + return usb_hcd_to_wusbhc(usb_hcd); +} + +/* + * Show & store the current WUSB trust timeout + * + * We don't do locking--it is an 'atomic' value. + * + * The units that we store/show are always MILLISECONDS. However, the + * value of trust_timeout is jiffies. + */ +static ssize_t wusb_trust_timeout_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); + + return scnprintf(buf, PAGE_SIZE, "%u ms\n", wusbhc->trust_timeout); +} + +static ssize_t wusb_trust_timeout_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); + ssize_t result = -ENOSYS; + unsigned trust_timeout; + + result = sscanf(buf, "%u", &trust_timeout); + if (result != 1) { + result = -EINVAL; + goto out; + } + /* FIXME: maybe we should check for range validity? */ + wusbhc->trust_timeout = trust_timeout; + cancel_delayed_work(&wusbhc->keep_alive_timer); + flush_workqueue(wusbd); + queue_delayed_work(wusbd, &wusbhc->keep_alive_timer, + (trust_timeout * CONFIG_HZ)/1000/2); +out: + return result < 0? result : size; +} +static DEVICE_ATTR(wusb_trust_timeout, 0644, wusb_trust_timeout_show, + wusb_trust_timeout_store); + +/* + * Show & store the current WUSB CHID + */ +static ssize_t wusb_chid_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); + ssize_t result = 0; + + if (wusbhc->wuie_host_info != NULL) + result += ckhdid_printf(buf, PAGE_SIZE, + &wusbhc->wuie_host_info->CHID); + return result; +} + +/* + * Store a new CHID + * + * This will (FIXME) trigger many changes. + * + * - Send an all zeros CHID and it will stop the controller + * - Send a non-zero CHID and it will start it + * (unless it was started, it will just change the CHID, + * diconnecting all devices first). + * + * So first we scan the MMC we are sent and then we act on it. We + * read it in the same format as we print it, an ASCII string of 16 + * hex bytes. + * + * See wusbhc_chid_set() for more info. + */ +static ssize_t wusb_chid_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct wusbhc *wusbhc = usbhc_dev_to_wusbhc(dev); + struct wusb_ckhdid chid; + ssize_t result; + + result = sscanf(buf, + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx\n", + &chid.data[0] , &chid.data[1] , + &chid.data[2] , &chid.data[3] , + &chid.data[4] , &chid.data[5] , + &chid.data[6] , &chid.data[7] , + &chid.data[8] , &chid.data[9] , + &chid.data[10], &chid.data[11], + &chid.data[12], &chid.data[13], + &chid.data[14], &chid.data[15]); + if (result != 16) { + dev_err(dev, "Unrecognized CHID (need 16 8-bit hex digits): " + "%d\n", (int)result); + return -EINVAL; + } + result = wusbhc_chid_set(wusbhc, &chid); + return result < 0? result : size; +} +static DEVICE_ATTR(wusb_chid, 0644, wusb_chid_show, wusb_chid_store); + +/* Group all the WUSBHC attributes */ +static struct attribute *wusbhc_attrs[] = { + &dev_attr_wusb_trust_timeout.attr, + &dev_attr_wusb_chid.attr, + NULL, +}; + +static struct attribute_group wusbhc_attr_group = { + .name = NULL, /* we want them in the same directory */ + .attrs = wusbhc_attrs, +}; + +/* + * Create a wusbhc instance + * + * NOTEs: + * + * - assumes *wusbhc has been zeroed and wusbhc->usb_hcd has been + * initialized but not added. + * + * - fill out ports_max, mmcies_max and mmcie_{add,rm} before calling. + * + * - fill out wusbhc->uwb_rc and refcount it before calling + * - fill out the wusbhc->sec_modes array + */ +int wusbhc_create(struct wusbhc *wusbhc) +{ + int result = 0; + + wusbhc->trust_timeout = WUSB_TRUST_TIMEOUT_MS; + mutex_init(&wusbhc->mutex); + result = wusbhc_mmcie_create(wusbhc); + if (result < 0) + goto error_mmcie_create; + result = wusbhc_devconnect_create(wusbhc); + if (result < 0) + goto error_devconnect_create; + result = wusbhc_rh_create(wusbhc); + if (result < 0) + goto error_rh_create; + result = wusbhc_sec_create(wusbhc); + if (result < 0) + goto error_sec_create; + result = wusbhc_pal_register(wusbhc); + if (result < 0) + goto error_pal_register; + return 0; + +error_pal_register: + wusbhc_sec_destroy(wusbhc); +error_sec_create: + wusbhc_rh_destroy(wusbhc); +error_rh_create: + wusbhc_devconnect_destroy(wusbhc); +error_devconnect_create: + wusbhc_mmcie_destroy(wusbhc); +error_mmcie_create: + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_create); + +static inline struct kobject *wusbhc_kobj(struct wusbhc *wusbhc) +{ + return &wusbhc->usb_hcd.self.controller->kobj; +} + +/* + * Phase B of a wusbhc instance creation + * + * Creates fields that depend on wusbhc->usb_hcd having been + * added. This is where we create the sysfs files in + * /sys/class/usb_host/usb_hostX/. + * + * NOTE: Assumes wusbhc->usb_hcd has been already added by the upper + * layer (hwahc or whci) + */ +int wusbhc_b_create(struct wusbhc *wusbhc) +{ + int result = 0; + struct device *dev = wusbhc->usb_hcd.self.controller; + + result = sysfs_create_group(wusbhc_kobj(wusbhc), &wusbhc_attr_group); + if (result < 0) { + dev_err(dev, "Cannot register WUSBHC attributes: %d\n", result); + goto error_create_attr_group; + } + /* Yep, I plan to add stuff here... */ +error_create_attr_group: + return result; +} +EXPORT_SYMBOL_GPL(wusbhc_b_create); + +void wusbhc_b_destroy(struct wusbhc *wusbhc) +{ + sysfs_remove_group(wusbhc_kobj(wusbhc), &wusbhc_attr_group); +} +EXPORT_SYMBOL_GPL(wusbhc_b_destroy); + +void wusbhc_destroy(struct wusbhc *wusbhc) +{ + wusbhc_pal_unregister(wusbhc); + wusbhc_sec_destroy(wusbhc); + wusbhc_rh_destroy(wusbhc); + wusbhc_devconnect_destroy(wusbhc); + wusbhc_mmcie_destroy(wusbhc); +} +EXPORT_SYMBOL_GPL(wusbhc_destroy); + +struct workqueue_struct *wusbd; +EXPORT_SYMBOL_GPL(wusbd); + +/* + * WUSB Cluster ID allocation map + * + * Each WUSB bus in a channel is identified with a Cluster Id in the + * unauth address pace (WUSB1.0[4.3]). We take the range 0xe0 to 0xff + * (that's space for 31 WUSB controllers, as 0xff can't be taken). We + * start taking from 0xff, 0xfe, 0xfd... (hence the += or -= 0xff). + * + * For each one we taken, we pin it in the bitap + */ +#define CLUSTER_IDS 32 +static DECLARE_BITMAP(wusb_cluster_id_table, CLUSTER_IDS); +static DEFINE_SPINLOCK(wusb_cluster_ids_lock); + +/* + * Get a WUSB Cluster ID + * + * Need to release with wusb_cluster_id_put() when done w/ it. + */ +/* FIXME: coordinate with the choose_addres() from the USB stack */ +/* we want to leave the top of the 128 range for cluster addresses and + * the bottom for device addresses (as we map them one on one with + * ports). */ +u8 wusb_cluster_id_get(void) +{ + u8 id; + spin_lock(&wusb_cluster_ids_lock); + id = find_first_zero_bit(wusb_cluster_id_table, CLUSTER_IDS); + if (id > CLUSTER_IDS) { + id = 0; + goto out; + } + set_bit(id, wusb_cluster_id_table); + id = (u8) 0xff - id; +out: + spin_unlock(&wusb_cluster_ids_lock); + return id; + +} +EXPORT_SYMBOL_GPL(wusb_cluster_id_get); + +/* + * Release a WUSB Cluster ID + * + * Obtained it with wusb_cluster_id_get() + */ +void wusb_cluster_id_put(u8 id) +{ + id = 0xff - id; + BUG_ON(id >= CLUSTER_IDS); + spin_lock(&wusb_cluster_ids_lock); + WARN_ON(!test_bit(id, wusb_cluster_id_table)); + clear_bit(id, wusb_cluster_id_table); + spin_unlock(&wusb_cluster_ids_lock); +} +EXPORT_SYMBOL_GPL(wusb_cluster_id_put); + +/* + * wusbhc_giveback_urb - return an URB to the USB core + * + * [WUSB] sections 4.13 and 7.5.1 specifies the stop retrasmittion + * condition for the WCONNECTACK_IE is that the host has observed the + * associated device responding to control transfer. + */ +void wusbhc_giveback_urb(struct wusbhc *wusbhc, struct urb *urb, int status) +{ + struct wusb_dev *wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev); + + if (status == 0) { + wusb_dev->entry_ts = jiffies; + + if (!list_empty(&wusb_dev->cack_node)) + queue_work(wusbd, &wusb_dev->devconnect_acked_work); + } + + usb_hcd_giveback_urb(&wusbhc->usb_hcd, urb, status); +} +EXPORT_SYMBOL_GPL(wusbhc_giveback_urb); + +static struct notifier_block wusb_usb_notifier = { + .notifier_call = wusb_usb_ncb, + .priority = INT_MAX /* Need to be called first of all */ +}; + +static int __init wusbcore_init(void) +{ + int result; + result = wusb_crypto_init(); + if (result < 0) + goto error_crypto_init; + /* WQ is singlethread because we need to serialize notifications */ + wusbd = create_singlethread_workqueue("wusbd"); + if (wusbd == NULL) { + result = -ENOMEM; + printk(KERN_ERR "WUSB-core: Cannot create wusbd workqueue\n"); + goto error_wusbd_create; + } + usb_register_notify(&wusb_usb_notifier); + bitmap_zero(wusb_cluster_id_table, CLUSTER_IDS); + set_bit(0, wusb_cluster_id_table); /* reserve Cluster ID 0xff */ + return 0; + +error_wusbd_create: + wusb_crypto_exit(); +error_crypto_init: + return result; + +} +module_init(wusbcore_init); + +static void __exit wusbcore_exit(void) +{ + clear_bit(0, wusb_cluster_id_table); + if (!bitmap_empty(wusb_cluster_id_table, CLUSTER_IDS)) { + char buf[256]; + bitmap_scnprintf(buf, sizeof(buf), wusb_cluster_id_table, + CLUSTER_IDS); + printk(KERN_ERR "BUG: WUSB Cluster IDs not released " + "on exit: %s\n", buf); + WARN_ON(1); + } + usb_unregister_notify(&wusb_usb_notifier); + destroy_workqueue(wusbd); + wusb_crypto_exit(); +} +module_exit(wusbcore_exit); + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Wireless USB core"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/wusbcore/wusbhc.h b/drivers/usb/wusbcore/wusbhc.h new file mode 100644 index 000000000000..7a7719b664f7 --- /dev/null +++ b/drivers/usb/wusbcore/wusbhc.h @@ -0,0 +1,525 @@ +/* + * Wireless USB Host Controller + * Common infrastructure for WHCI and HWA WUSB-HC drivers + * + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This driver implements parts common to all Wireless USB Host + * Controllers (struct wusbhc, embedding a struct usb_hcd) and is used + * by: + * + * - hwahc: HWA, USB-dongle that implements a Wireless USB host + * controller, (Wireless USB 1.0 Host-Wire-Adapter specification). + * + * - whci: WHCI, a PCI card with a wireless host controller + * (Wireless Host Controller Interface 1.0 specification). + * + * Check out the Design-overview.txt file in the source documentation + * for other details on the implementation. + * + * Main blocks: + * + * rh Root Hub emulation (part of the HCD glue) + * + * devconnect Handle all the issues related to device connection, + * authentication, disconnection, timeout, reseting, + * keepalives, etc. + * + * mmc MMC IE broadcasting handling + * + * A host controller driver just initializes its stuff and as part of + * that, creates a 'struct wusbhc' instance that handles all the + * common WUSB mechanisms. Links in the function ops that are specific + * to it and then registers the host controller. Ready to run. + */ + +#ifndef __WUSBHC_H__ +#define __WUSBHC_H__ + +#include <linux/usb.h> +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/kref.h> +#include <linux/workqueue.h> +#include <linux/byteorder/bitfields.h> +/* FIXME: Yes, I know: BAD--it's not my fault the USB HC iface is not + * public */ +#include <linux/../../drivers/usb/core/hcd.h> +#include <linux/uwb.h> +#include <linux/usb/wusb.h> + + +/** + * Wireless USB device + * + * Describe a WUSB device connected to the cluster. This struct + * belongs to the 'struct wusb_port' it is attached to and it is + * responsible for putting and clearing the pointer to it. + * + * Note this "complements" the 'struct usb_device' that the usb_hcd + * keeps for each connected USB device. However, it extends some + * information that is not available (there is no hcpriv ptr in it!) + * *and* most importantly, it's life cycle is different. It is created + * as soon as we get a DN_Connect (connect request notification) from + * the device through the WUSB host controller; the USB stack doesn't + * create the device until we authenticate it. FIXME: this will + * change. + * + * @bos: This is allocated when the BOS descriptors are read from + * the device and freed upon the wusb_dev struct dying. + * @wusb_cap_descr: points into @bos, and has been verified to be size + * safe. + */ +struct wusb_dev { + struct kref refcnt; + struct wusbhc *wusbhc; + struct list_head cack_node; /* Connect-Ack list */ + u8 port_idx; + u8 addr; + u8 beacon_type:4; + struct usb_encryption_descriptor ccm1_etd; + struct wusb_ckhdid cdid; + unsigned long entry_ts; + struct usb_bos_descriptor *bos; + struct usb_wireless_cap_descriptor *wusb_cap_descr; + struct uwb_mas_bm availability; + struct work_struct devconnect_acked_work; + struct urb *set_gtk_urb; + struct usb_ctrlrequest *set_gtk_req; + struct usb_device *usb_dev; +}; + +#define WUSB_DEV_ADDR_UNAUTH 0x80 + +static inline void wusb_dev_init(struct wusb_dev *wusb_dev) +{ + kref_init(&wusb_dev->refcnt); + /* no need to init the cack_node */ +} + +extern void wusb_dev_destroy(struct kref *_wusb_dev); + +static inline struct wusb_dev *wusb_dev_get(struct wusb_dev *wusb_dev) +{ + kref_get(&wusb_dev->refcnt); + return wusb_dev; +} + +static inline void wusb_dev_put(struct wusb_dev *wusb_dev) +{ + kref_put(&wusb_dev->refcnt, wusb_dev_destroy); +} + +/** + * Wireless USB Host Controlller root hub "fake" ports + * (state and device information) + * + * Wireless USB is wireless, so there are no ports; but we + * fake'em. Each RC can connect a max of devices at the same time + * (given in the Wireless Adapter descriptor, bNumPorts or WHCI's + * caps), referred to in wusbhc->ports_max. + * + * See rh.c for more information. + * + * The @status and @change are packed and made to layout exactly like + * USB2.0[11.24.2.7], so we don't have to do much when getting the + * port's status [other than fake endianess changes]. + * + * WUSB1.0[7.1], USB2.0[11.24.2.7.1,fig 11-10], + * include/linux/usb_ch9.h (#define USB_PORT_STAT_*) + */ +struct wusb_port { + union { + __le16 status; + DECL_BF_LE12( + u16 connection:1, + u16 enable:1, + u16 suspend:1, + u16 over_current:1, + u16 reset:1, + u16 reserved:3, + u16 power:1, + u16 low_speed:1, + u16 high_speed:1, + u16 test:1, + u16 indicator:1, + u16 reserved2:3 + ) __attribute__((packed)); + }; + union { + __le16 change; + DECL_BF_LE7( + u16 c_connection:1, + u16 c_enable:1, + u16 c_suspend:1, + u16 c_over_current:1, + u16 c_reset:1, + u16 reserved1:3, + u16 reserved2:8 + ) __attribute__((packed)); + }; + struct wusb_dev *wusb_dev; /* connected device's info */ + unsigned reset_count; + u32 ptk_tkid; +}; + +/** + * WUSB Host Controller specifics + * + * All fields that are common to all Wireless USB controller types + * (HWA and WHCI) are grouped here. Host Controller + * functions/operations that only deal with general Wireless USB HC + * issues use this data type to refer to the host. + * + * @usb_hcd Instantiation of a USB host controller + * (initialized by upper layer [HWA=HC or WHCI]. + * + * @dev Device that implements this; initialized by the + * upper layer (HWA-HC, WHCI...); this device should + * have a refcount. + * + * @trust_timeout After this time without hearing for device + * activity, we consider the device gone and we have to + * re-authenticate. + * + * Can be accessed w/o locking--however, read to a + * local variable then use. + * + * @chid WUSB Cluster Host ID: this is supposed to be a + * unique value that doesn't change across reboots (so + * that your devices do not require re-association). + * + * Read/Write protected by @mutex + * + * @dev_info This array has ports_max elements. It is used to + * give the HC information about the WUSB devices (see + * 'struct wusb_dev_info'). + * + * For HWA we need to allocate it in heap; for WHCI it + * needs to be permanently mapped, so we keep it for + * both and make it easy. Call wusbhc->dev_info_set() + * to update an entry. + * + * @ports_max Number of simultaneous device connections (fake + * ports) this HC will take. Read-only. + * + * @port Array of port status for each fake root port. Guaranteed to + * always be the same lenght during device existence + * [this allows for some unlocked but referenced reading]. + * + * @mmcies_max Max number of Information Elements this HC can send + * in its MMC. Read-only. + * + * @mmcie_add HC specific operation (WHCI or HWA) for adding an + * MMCIE. + * + * @mmcie_rm HC specific operation (WHCI or HWA) for removing an + * MMCIE. + * + * @enc_types Array which describes the encryptions methods + * supported by the host as described in WUSB1.0 -- + * one entry per supported method. As of WUSB1.0 there + * is only four methods, we make space for eight just in + * case they decide to add some more (and pray they do + * it in sequential order). if 'enc_types[enc_method] + * != 0', then it is supported by the host. enc_method + * is USB_ENC_TYPE*. + * + * @set_ptk: Set the PTK and enable encryption for a device. Or, if + * the supplied key is NULL, disable encryption for that + * device. + * + * @set_gtk: Set the GTK to be used for all future broadcast packets + * (i.e., MMCs). With some hardware, setting the GTK may start + * MMC transmission. + * + * NOTE: + * + * - If wusb_dev->usb_dev is not NULL, then usb_dev is valid + * (wusb_dev has a refcount on it). Likewise, if usb_dev->wusb_dev + * is not NULL, usb_dev->wusb_dev is valid (usb_dev keeps a + * refcount on it). + * + * Most of the times when you need to use it, it will be non-NULL, + * so there is no real need to check for it (wusb_dev will + * dissapear before usb_dev). + * + * - The following fields need to be filled out before calling + * wusbhc_create(): ports_max, mmcies_max, mmcie_{add,rm}. + * + * - there is no wusbhc_init() method, we do everything in + * wusbhc_create(). + * + * - Creation is done in two phases, wusbhc_create() and + * wusbhc_create_b(); b are the parts that need to be called after + * calling usb_hcd_add(&wusbhc->usb_hcd). + */ +struct wusbhc { + struct usb_hcd usb_hcd; /* HAS TO BE 1st */ + struct device *dev; + struct uwb_rc *uwb_rc; + struct uwb_pal pal; + + unsigned trust_timeout; /* in jiffies */ + struct wuie_host_info *wuie_host_info; /* Includes CHID */ + + struct mutex mutex; /* locks everything else */ + u16 cluster_id; /* Wireless USB Cluster ID */ + struct wusb_port *port; /* Fake port status handling */ + struct wusb_dev_info *dev_info; /* for Set Device Info mgmt */ + u8 ports_max; + unsigned active:1; /* currently xmit'ing MMCs */ + struct wuie_keep_alive keep_alive_ie; /* protected by mutex */ + struct delayed_work keep_alive_timer; + struct list_head cack_list; /* Connect acknowledging */ + size_t cack_count; /* protected by 'mutex' */ + struct wuie_connect_ack cack_ie; + struct uwb_rsv *rsv; /* cluster bandwidth reservation */ + + struct mutex mmcie_mutex; /* MMC WUIE handling */ + struct wuie_hdr **mmcie; /* WUIE array */ + u8 mmcies_max; + /* FIXME: make wusbhc_ops? */ + int (*start)(struct wusbhc *wusbhc); + void (*stop)(struct wusbhc *wusbhc); + int (*mmcie_add)(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt, + u8 handle, struct wuie_hdr *wuie); + int (*mmcie_rm)(struct wusbhc *wusbhc, u8 handle); + int (*dev_info_set)(struct wusbhc *, struct wusb_dev *wusb_dev); + int (*bwa_set)(struct wusbhc *wusbhc, s8 stream_index, + const struct uwb_mas_bm *); + int (*set_ptk)(struct wusbhc *wusbhc, u8 port_idx, + u32 tkid, const void *key, size_t key_size); + int (*set_gtk)(struct wusbhc *wusbhc, + u32 tkid, const void *key, size_t key_size); + int (*set_num_dnts)(struct wusbhc *wusbhc, u8 interval, u8 slots); + + struct { + struct usb_key_descriptor descr; + u8 data[16]; /* GTK key data */ + } __attribute__((packed)) gtk; + union wusb_key_index gtk_index; + u32 gtk_tkid; + struct work_struct gtk_rekey_done_work; + int pending_set_gtks; + + struct usb_encryption_descriptor *ccm1_etd; +}; + +#define usb_hcd_to_wusbhc(u) container_of((u), struct wusbhc, usb_hcd) + + +extern int wusbhc_create(struct wusbhc *); +extern int wusbhc_b_create(struct wusbhc *); +extern void wusbhc_b_destroy(struct wusbhc *); +extern void wusbhc_destroy(struct wusbhc *); +extern int wusb_dev_sysfs_add(struct wusbhc *, struct usb_device *, + struct wusb_dev *); +extern void wusb_dev_sysfs_rm(struct wusb_dev *); +extern int wusbhc_sec_create(struct wusbhc *); +extern int wusbhc_sec_start(struct wusbhc *); +extern void wusbhc_sec_stop(struct wusbhc *); +extern void wusbhc_sec_destroy(struct wusbhc *); +extern void wusbhc_giveback_urb(struct wusbhc *wusbhc, struct urb *urb, + int status); + +int wusbhc_pal_register(struct wusbhc *wusbhc); +void wusbhc_pal_unregister(struct wusbhc *wusbhc); + +/* + * Return @usb_dev's @usb_hcd (properly referenced) or NULL if gone + * + * @usb_dev: USB device, UNLOCKED and referenced (or otherwise, safe ptr) + * + * This is a safe assumption as @usb_dev->bus is referenced all the + * time during the @usb_dev life cycle. + */ +static inline struct usb_hcd *usb_hcd_get_by_usb_dev(struct usb_device *usb_dev) +{ + struct usb_hcd *usb_hcd; + usb_hcd = container_of(usb_dev->bus, struct usb_hcd, self); + return usb_get_hcd(usb_hcd); +} + +/* + * Increment the reference count on a wusbhc. + * + * @wusbhc's life cycle is identical to that of the underlying usb_hcd. + */ +static inline struct wusbhc *wusbhc_get(struct wusbhc *wusbhc) +{ + return usb_get_hcd(&wusbhc->usb_hcd)? wusbhc : NULL; +} + +/* + * Return the wusbhc associated to a @usb_dev + * + * @usb_dev: USB device, UNLOCKED and referenced (or otherwise, safe ptr) + * + * @returns: wusbhc for @usb_dev; NULL if the @usb_dev is being torn down. + * WARNING: referenced at the usb_hcd level, unlocked + * + * FIXME: move offline + */ +static inline struct wusbhc *wusbhc_get_by_usb_dev(struct usb_device *usb_dev) +{ + struct wusbhc *wusbhc = NULL; + struct usb_hcd *usb_hcd; + if (usb_dev->devnum > 1 && !usb_dev->wusb) { + /* but root hubs */ + dev_err(&usb_dev->dev, "devnum %d wusb %d\n", usb_dev->devnum, + usb_dev->wusb); + BUG_ON(usb_dev->devnum > 1 && !usb_dev->wusb); + } + usb_hcd = usb_hcd_get_by_usb_dev(usb_dev); + if (usb_hcd == NULL) + return NULL; + BUG_ON(usb_hcd->wireless == 0); + return wusbhc = usb_hcd_to_wusbhc(usb_hcd); +} + + +static inline void wusbhc_put(struct wusbhc *wusbhc) +{ + usb_put_hcd(&wusbhc->usb_hcd); +} + +int wusbhc_start(struct wusbhc *wusbhc, const struct wusb_ckhdid *chid); +void wusbhc_stop(struct wusbhc *wusbhc); +extern int wusbhc_chid_set(struct wusbhc *, const struct wusb_ckhdid *); + +/* Device connect handling */ +extern int wusbhc_devconnect_create(struct wusbhc *); +extern void wusbhc_devconnect_destroy(struct wusbhc *); +extern int wusbhc_devconnect_start(struct wusbhc *wusbhc, + const struct wusb_ckhdid *chid); +extern void wusbhc_devconnect_stop(struct wusbhc *wusbhc); +extern int wusbhc_devconnect_auth(struct wusbhc *, u8); +extern void wusbhc_handle_dn(struct wusbhc *, u8 srcaddr, + struct wusb_dn_hdr *dn_hdr, size_t size); +extern int wusbhc_dev_reset(struct wusbhc *wusbhc, u8 port); +extern void __wusbhc_dev_disable(struct wusbhc *wusbhc, u8 port); +extern int wusb_usb_ncb(struct notifier_block *nb, unsigned long val, + void *priv); +extern int wusb_set_dev_addr(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev, + u8 addr); + +/* Wireless USB fake Root Hub methods */ +extern int wusbhc_rh_create(struct wusbhc *); +extern void wusbhc_rh_destroy(struct wusbhc *); + +extern int wusbhc_rh_status_data(struct usb_hcd *, char *); +extern int wusbhc_rh_control(struct usb_hcd *, u16, u16, u16, char *, u16); +extern int wusbhc_rh_suspend(struct usb_hcd *); +extern int wusbhc_rh_resume(struct usb_hcd *); +extern int wusbhc_rh_start_port_reset(struct usb_hcd *, unsigned); + +/* MMC handling */ +extern int wusbhc_mmcie_create(struct wusbhc *); +extern void wusbhc_mmcie_destroy(struct wusbhc *); +extern int wusbhc_mmcie_set(struct wusbhc *, u8 interval, u8 repeat_cnt, + struct wuie_hdr *); +extern void wusbhc_mmcie_rm(struct wusbhc *, struct wuie_hdr *); + +/* Bandwidth reservation */ +int wusbhc_rsv_establish(struct wusbhc *wusbhc); +void wusbhc_rsv_terminate(struct wusbhc *wusbhc); + +/* + * I've always said + * I wanted a wedding in a church... + * + * but lately I've been thinking about + * the Botanical Gardens. + * + * We could do it by the tulips. + * It'll be beautiful + * + * --Security! + */ +extern int wusb_dev_sec_add(struct wusbhc *, struct usb_device *, + struct wusb_dev *); +extern void wusb_dev_sec_rm(struct wusb_dev *) ; +extern int wusb_dev_4way_handshake(struct wusbhc *, struct wusb_dev *, + struct wusb_ckhdid *chid, + struct wusb_ckhdid *cdid, + struct wusb_ckhdid *ck); +void wusbhc_gtk_rekey(struct wusbhc *wusbhc); + + +/* WUSB Cluster ID handling */ +extern u8 wusb_cluster_id_get(void); +extern void wusb_cluster_id_put(u8); + +/* + * wusb_port_by_idx - return the port associated to a zero-based port index + * + * NOTE: valid without locking as long as wusbhc is referenced (as the + * number of ports doesn't change). The data pointed to has to + * be verified though :) + */ +static inline struct wusb_port *wusb_port_by_idx(struct wusbhc *wusbhc, + u8 port_idx) +{ + return &wusbhc->port[port_idx]; +} + +/* + * wusb_port_no_to_idx - Convert port number (per usb_dev->portnum) to + * a port_idx. + * + * USB stack USB ports are 1 based!! + * + * NOTE: only valid for WUSB devices!!! + */ +static inline u8 wusb_port_no_to_idx(u8 port_no) +{ + return port_no - 1; +} + +extern struct wusb_dev *__wusb_dev_get_by_usb_dev(struct wusbhc *, + struct usb_device *); + +/* + * Return a referenced wusb_dev given a @usb_dev + * + * Returns NULL if the usb_dev is being torn down. + * + * FIXME: move offline + */ +static inline +struct wusb_dev *wusb_dev_get_by_usb_dev(struct usb_device *usb_dev) +{ + struct wusbhc *wusbhc; + struct wusb_dev *wusb_dev; + wusbhc = wusbhc_get_by_usb_dev(usb_dev); + if (wusbhc == NULL) + return NULL; + mutex_lock(&wusbhc->mutex); + wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, usb_dev); + mutex_unlock(&wusbhc->mutex); + wusbhc_put(wusbhc); + return wusb_dev; +} + +/* Misc */ + +extern struct workqueue_struct *wusbd; +#endif /* #ifndef __WUSBHC_H__ */ diff --git a/drivers/uwb/Kconfig b/drivers/uwb/Kconfig new file mode 100644 index 000000000000..03f27f4c4aa9 --- /dev/null +++ b/drivers/uwb/Kconfig @@ -0,0 +1,90 @@ +# +# UWB device configuration +# + +menuconfig UWB + tristate "Ultra Wide Band devices" + depends on PCI + default n + help + UWB is a high-bandwidth, low-power, point-to-point radio + technology using a wide spectrum (3.1-10.6GHz). It is + optimized for in-room use (480Mbps at 2 meters, 110Mbps at + 10m). It serves as the transport layer for other protocols, + such as Wireless USB (WUSB), IP (WLP) and upcoming + Bluetooth and 1394 + + The topology is peer to peer; however, higher level + protocols (such as WUSB) might impose a master/slave + relationship. + + Say Y here if your computer has UWB radio controllers (USB or PCI) + based. You will need to enable the radio controllers + below. It is ok to select all of them, no harm done. + + For more help check the UWB and WUSB related files in + <file:Documentation/usb/>. + + To compile the UWB stack as a module, choose M here. + +if UWB + +config UWB_HWA + tristate "UWB Radio Control driver for WUSB-compliant USB dongles (HWA)" + depends on USB + help + This driver enables the radio controller for HWA USB + devices. HWA stands for Host Wire Adapter, and it is a UWB + Radio Controller connected to your system via USB. Most of + them come with a Wireless USB host controller also. + + To compile this driver select Y (built in) or M (module). It + is safe to select any even if you do not have the hardware. + +config UWB_WHCI + tristate "UWB Radio Control driver for WHCI-compliant cards" + depends on PCI + depends on UWB_HWA + help + This driver enables the radio controller for WHCI cards. + + WHCI is an specification developed by Intel + (http://www.intel.com/technology/comms/wusb/whci.htm) much + in the spirit of USB's EHCI, but for UWB and Wireless USB + radio/host controllers connected via memmory mapping (eg: + PCI). Most of these cards come also with a Wireless USB host + controller. + + To compile this driver select Y (built in) or M (module). It + is safe to select any even if you do not have the hardware. + +config UWB_WLP + tristate "Support WiMedia Link Protocol (Ethernet/IP over UWB)" + depends on UWB && NET + help + This is a common library for drivers that implement + networking over UWB. + +config UWB_I1480U + tristate "Support for Intel Wireless UWB Link 1480 HWA" + depends on UWB_HWA + select FW_LOADER + help + This driver enables support for the i1480 when connected via + USB. It consists of a firmware uploader that will enable it + to behave as an HWA device. + + To compile this driver select Y (built in) or M (module). It + is safe to select any even if you do not have the hardware. + +config UWB_I1480U_WLP + tristate "Support for Intel Wireless UWB Link 1480 HWA's WLP interface" + depends on UWB_I1480U && UWB_WLP && NET + help + This driver enables WLP support for the i1480 when connected via + USB. WLP is the WiMedia Link Protocol, or IP over UWB. + + To compile this driver select Y (built in) or M (module). It + is safe to select any even if you don't have the hardware. + +endif # UWB diff --git a/drivers/uwb/Makefile b/drivers/uwb/Makefile new file mode 100644 index 000000000000..257e6908304c --- /dev/null +++ b/drivers/uwb/Makefile @@ -0,0 +1,29 @@ +obj-$(CONFIG_UWB) += uwb.o +obj-$(CONFIG_UWB_WLP) += wlp/ +obj-$(CONFIG_UWB_WHCI) += umc.o whci.o whc-rc.o +obj-$(CONFIG_UWB_HWA) += hwa-rc.o +obj-$(CONFIG_UWB_I1480U) += i1480/ + +uwb-objs := \ + address.o \ + beacon.o \ + driver.o \ + drp.o \ + drp-avail.o \ + drp-ie.o \ + est.o \ + ie.o \ + lc-dev.o \ + lc-rc.o \ + neh.o \ + pal.o \ + reset.o \ + rsv.o \ + scan.o \ + uwb-debug.o \ + uwbd.o + +umc-objs := \ + umc-bus.o \ + umc-dev.o \ + umc-drv.o diff --git a/drivers/uwb/address.c b/drivers/uwb/address.c new file mode 100644 index 000000000000..760758147a64 --- /dev/null +++ b/drivers/uwb/address.c @@ -0,0 +1,374 @@ +/* + * Ultra Wide Band + * Address management + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ + +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/random.h> +#include <linux/etherdevice.h> +#include <linux/uwb/debug.h> +#include "uwb-internal.h" + + +/** Device Address Management command */ +struct uwb_rc_cmd_dev_addr_mgmt { + struct uwb_rccb rccb; + u8 bmOperationType; + u8 baAddr[6]; +} __attribute__((packed)); + + +/** + * Low level command for setting/getting UWB radio's addresses + * + * @hwarc: HWA Radio Control interface instance + * @bmOperationType: + * Set/get, MAC/DEV (see WUSB1.0[8.6.2.2]) + * @baAddr: address buffer--assumed to have enough data to hold + * the address type requested. + * @reply: Pointer to reply buffer (can be stack allocated) + * @returns: 0 if ok, < 0 errno code on error. + * + * @cmd has to be allocated because USB cannot grok USB or vmalloc + * buffers depending on your combination of host architecture. + */ +static +int uwb_rc_dev_addr_mgmt(struct uwb_rc *rc, + u8 bmOperationType, const u8 *baAddr, + struct uwb_rc_evt_dev_addr_mgmt *reply) +{ + int result; + struct uwb_rc_cmd_dev_addr_mgmt *cmd; + + result = -ENOMEM; + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + goto error_kzalloc; + cmd->rccb.bCommandType = UWB_RC_CET_GENERAL; + cmd->rccb.wCommand = cpu_to_le16(UWB_RC_CMD_DEV_ADDR_MGMT); + cmd->bmOperationType = bmOperationType; + if (baAddr) { + size_t size = 0; + switch (bmOperationType >> 1) { + case 0: size = 2; break; + case 1: size = 6; break; + default: BUG(); + } + memcpy(cmd->baAddr, baAddr, size); + } + reply->rceb.bEventType = UWB_RC_CET_GENERAL; + reply->rceb.wEvent = UWB_RC_CMD_DEV_ADDR_MGMT; + result = uwb_rc_cmd(rc, "DEV-ADDR-MGMT", + &cmd->rccb, sizeof(*cmd), + &reply->rceb, sizeof(*reply)); + if (result < 0) + goto error_cmd; + if (result < sizeof(*reply)) { + dev_err(&rc->uwb_dev.dev, + "DEV-ADDR-MGMT: not enough data replied: " + "%d vs %zu bytes needed\n", result, sizeof(*reply)); + result = -ENOMSG; + } else if (reply->bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(&rc->uwb_dev.dev, + "DEV-ADDR-MGMT: command execution failed: %s (%d)\n", + uwb_rc_strerror(reply->bResultCode), + reply->bResultCode); + result = -EIO; + } else + result = 0; +error_cmd: + kfree(cmd); +error_kzalloc: + return result; +} + + +/** + * Set the UWB RC MAC or device address. + * + * @rc: UWB Radio Controller + * @_addr: Pointer to address to write [assumed to be either a + * 'struct uwb_mac_addr *' or a 'struct uwb_dev_addr *']. + * @type: Type of address to set (UWB_ADDR_DEV or UWB_ADDR_MAC). + * @returns: 0 if ok, < 0 errno code on error. + * + * Some anal retentivity here: even if both 'struct + * uwb_{dev,mac}_addr' have the actual byte array in the same offset + * and I could just pass _addr to hwarc_cmd_dev_addr_mgmt(), I prefer + * to use some syntatic sugar in case someday we decide to change the + * format of the structs. The compiler will optimize it out anyway. + */ +static int uwb_rc_addr_set(struct uwb_rc *rc, + const void *_addr, enum uwb_addr_type type) +{ + int result; + u8 bmOperationType = 0x1; /* Set address */ + const struct uwb_dev_addr *dev_addr = _addr; + const struct uwb_mac_addr *mac_addr = _addr; + struct uwb_rc_evt_dev_addr_mgmt reply; + const u8 *baAddr; + + result = -EINVAL; + switch (type) { + case UWB_ADDR_DEV: + baAddr = dev_addr->data; + break; + case UWB_ADDR_MAC: + baAddr = mac_addr->data; + bmOperationType |= 0x2; + break; + default: + return result; + } + return uwb_rc_dev_addr_mgmt(rc, bmOperationType, baAddr, &reply); +} + + +/** + * Get the UWB radio's MAC or device address. + * + * @rc: UWB Radio Controller + * @_addr: Where to write the address data [assumed to be either a + * 'struct uwb_mac_addr *' or a 'struct uwb_dev_addr *']. + * @type: Type of address to get (UWB_ADDR_DEV or UWB_ADDR_MAC). + * @returns: 0 if ok (and *_addr set), < 0 errno code on error. + * + * See comment in uwb_rc_addr_set() about anal retentivity in the + * type handling of the address variables. + */ +static int uwb_rc_addr_get(struct uwb_rc *rc, + void *_addr, enum uwb_addr_type type) +{ + int result; + u8 bmOperationType = 0x0; /* Get address */ + struct uwb_rc_evt_dev_addr_mgmt evt; + struct uwb_dev_addr *dev_addr = _addr; + struct uwb_mac_addr *mac_addr = _addr; + u8 *baAddr; + + result = -EINVAL; + switch (type) { + case UWB_ADDR_DEV: + baAddr = dev_addr->data; + break; + case UWB_ADDR_MAC: + bmOperationType |= 0x2; + baAddr = mac_addr->data; + break; + default: + return result; + } + result = uwb_rc_dev_addr_mgmt(rc, bmOperationType, baAddr, &evt); + if (result == 0) + switch (type) { + case UWB_ADDR_DEV: + memcpy(&dev_addr->data, evt.baAddr, + sizeof(dev_addr->data)); + break; + case UWB_ADDR_MAC: + memcpy(&mac_addr->data, evt.baAddr, + sizeof(mac_addr->data)); + break; + default: /* shut gcc up */ + BUG(); + } + return result; +} + + +/** Get @rc's MAC address to @addr */ +int uwb_rc_mac_addr_get(struct uwb_rc *rc, + struct uwb_mac_addr *addr) { + return uwb_rc_addr_get(rc, addr, UWB_ADDR_MAC); +} +EXPORT_SYMBOL_GPL(uwb_rc_mac_addr_get); + + +/** Get @rc's device address to @addr */ +int uwb_rc_dev_addr_get(struct uwb_rc *rc, + struct uwb_dev_addr *addr) { + return uwb_rc_addr_get(rc, addr, UWB_ADDR_DEV); +} +EXPORT_SYMBOL_GPL(uwb_rc_dev_addr_get); + + +/** Set @rc's address to @addr */ +int uwb_rc_mac_addr_set(struct uwb_rc *rc, + const struct uwb_mac_addr *addr) +{ + int result = -EINVAL; + mutex_lock(&rc->uwb_dev.mutex); + result = uwb_rc_addr_set(rc, addr, UWB_ADDR_MAC); + mutex_unlock(&rc->uwb_dev.mutex); + return result; +} + + +/** Set @rc's address to @addr */ +int uwb_rc_dev_addr_set(struct uwb_rc *rc, + const struct uwb_dev_addr *addr) +{ + int result = -EINVAL; + mutex_lock(&rc->uwb_dev.mutex); + result = uwb_rc_addr_set(rc, addr, UWB_ADDR_DEV); + rc->uwb_dev.dev_addr = *addr; + mutex_unlock(&rc->uwb_dev.mutex); + return result; +} + +/* Returns !0 if given address is already assigned to device. */ +int __uwb_mac_addr_assigned_check(struct device *dev, void *_addr) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_mac_addr *addr = _addr; + + if (!uwb_mac_addr_cmp(addr, &uwb_dev->mac_addr)) + return !0; + return 0; +} + +/* Returns !0 if given address is already assigned to device. */ +int __uwb_dev_addr_assigned_check(struct device *dev, void *_addr) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_dev_addr *addr = _addr; + if (!uwb_dev_addr_cmp(addr, &uwb_dev->dev_addr)) + return !0; + return 0; +} + +/** + * uwb_dev_addr_assign - assigned a generated DevAddr to a radio controller + * @rc: the (local) radio controller device requiring a new DevAddr + * + * A new DevAddr is required when: + * - first setting up a radio controller + * - if the hardware reports a DevAddr conflict + * + * The DevAddr is randomly generated in the generated DevAddr range + * [0x100, 0xfeff]. The number of devices in a beacon group is limited + * by mMaxBPLength (96) so this address space will never be exhausted. + * + * [ECMA-368] 17.1.1, 17.16. + */ +int uwb_rc_dev_addr_assign(struct uwb_rc *rc) +{ + struct uwb_dev_addr new_addr; + + do { + get_random_bytes(new_addr.data, sizeof(new_addr.data)); + } while (new_addr.data[0] == 0x00 || new_addr.data[0] == 0xff + || __uwb_dev_addr_assigned(rc, &new_addr)); + + return uwb_rc_dev_addr_set(rc, &new_addr); +} + +/** + * uwbd_evt_handle_rc_dev_addr_conflict - handle a DEV_ADDR_CONFLICT event + * @evt: the DEV_ADDR_CONFLICT notification from the radio controller + * + * A new (non-conflicting) DevAddr is assigned to the radio controller. + * + * [ECMA-368] 17.1.1.1. + */ +int uwbd_evt_handle_rc_dev_addr_conflict(struct uwb_event *evt) +{ + struct uwb_rc *rc = evt->rc; + + return uwb_rc_dev_addr_assign(rc); +} + +/* + * Print the 48-bit EUI MAC address of the radio controller when + * reading /sys/class/uwb_rc/XX/mac_address + */ +static ssize_t uwb_rc_mac_addr_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_rc *rc = uwb_dev->rc; + struct uwb_mac_addr addr; + ssize_t result; + + mutex_lock(&rc->uwb_dev.mutex); + result = uwb_rc_addr_get(rc, &addr, UWB_ADDR_MAC); + mutex_unlock(&rc->uwb_dev.mutex); + if (result >= 0) { + result = uwb_mac_addr_print(buf, UWB_ADDR_STRSIZE, &addr); + buf[result++] = '\n'; + } + return result; +} + +/* + * Parse a 48 bit address written to /sys/class/uwb_rc/XX/mac_address + * and if correct, set it. + */ +static ssize_t uwb_rc_mac_addr_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_rc *rc = uwb_dev->rc; + struct uwb_mac_addr addr; + ssize_t result; + + result = sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx\n", + &addr.data[0], &addr.data[1], &addr.data[2], + &addr.data[3], &addr.data[4], &addr.data[5]); + if (result != 6) { + result = -EINVAL; + goto out; + } + if (is_multicast_ether_addr(addr.data)) { + dev_err(&rc->uwb_dev.dev, "refusing to set multicast " + "MAC address %s\n", buf); + result = -EINVAL; + goto out; + } + result = uwb_rc_mac_addr_set(rc, &addr); + if (result == 0) + rc->uwb_dev.mac_addr = addr; +out: + return result < 0? result : size; +} +DEVICE_ATTR(mac_address, S_IRUGO | S_IWUSR, uwb_rc_mac_addr_show, uwb_rc_mac_addr_store); + +/** Print @addr to @buf, @return bytes written */ +size_t __uwb_addr_print(char *buf, size_t buf_size, const unsigned char *addr, + int type) +{ + size_t result; + if (type) + result = scnprintf(buf, buf_size, + "%02x:%02x:%02x:%02x:%02x:%02x", + addr[0], addr[1], addr[2], + addr[3], addr[4], addr[5]); + else + result = scnprintf(buf, buf_size, "%02x:%02x", + addr[1], addr[0]); + return result; +} +EXPORT_SYMBOL_GPL(__uwb_addr_print); diff --git a/drivers/uwb/beacon.c b/drivers/uwb/beacon.c new file mode 100644 index 000000000000..0b2bc581dc96 --- /dev/null +++ b/drivers/uwb/beacon.c @@ -0,0 +1,707 @@ +/* + * Ultra Wide Band + * Beacon management + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/kdev_t.h> +#include "uwb-internal.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +/** Start Beaconing command structure */ +struct uwb_rc_cmd_start_beacon { + struct uwb_rccb rccb; + __le16 wBPSTOffset; + u8 bChannelNumber; +} __attribute__((packed)); + + +static int uwb_rc_start_beacon(struct uwb_rc *rc, u16 bpst_offset, u8 channel) +{ + int result; + struct uwb_rc_cmd_start_beacon *cmd; + struct uwb_rc_evt_confirm reply; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + cmd->rccb.bCommandType = UWB_RC_CET_GENERAL; + cmd->rccb.wCommand = cpu_to_le16(UWB_RC_CMD_START_BEACON); + cmd->wBPSTOffset = cpu_to_le16(bpst_offset); + cmd->bChannelNumber = channel; + reply.rceb.bEventType = UWB_RC_CET_GENERAL; + reply.rceb.wEvent = UWB_RC_CMD_START_BEACON; + result = uwb_rc_cmd(rc, "START-BEACON", &cmd->rccb, sizeof(*cmd), + &reply.rceb, sizeof(reply)); + if (result < 0) + goto error_cmd; + if (reply.bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(&rc->uwb_dev.dev, + "START-BEACON: command execution failed: %s (%d)\n", + uwb_rc_strerror(reply.bResultCode), reply.bResultCode); + result = -EIO; + } +error_cmd: + kfree(cmd); + return result; +} + +static int uwb_rc_stop_beacon(struct uwb_rc *rc) +{ + int result; + struct uwb_rccb *cmd; + struct uwb_rc_evt_confirm reply; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + cmd->bCommandType = UWB_RC_CET_GENERAL; + cmd->wCommand = cpu_to_le16(UWB_RC_CMD_STOP_BEACON); + reply.rceb.bEventType = UWB_RC_CET_GENERAL; + reply.rceb.wEvent = UWB_RC_CMD_STOP_BEACON; + result = uwb_rc_cmd(rc, "STOP-BEACON", cmd, sizeof(*cmd), + &reply.rceb, sizeof(reply)); + if (result < 0) + goto error_cmd; + if (reply.bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(&rc->uwb_dev.dev, + "STOP-BEACON: command execution failed: %s (%d)\n", + uwb_rc_strerror(reply.bResultCode), reply.bResultCode); + result = -EIO; + } +error_cmd: + kfree(cmd); + return result; +} + +/* + * Start/stop beacons + * + * @rc: UWB Radio Controller to operate on + * @channel: UWB channel on which to beacon (WUSB[table + * 5-12]). If -1, stop beaconing. + * @bpst_offset: Beacon Period Start Time offset; FIXME-do zero + * + * According to WHCI 0.95 [4.13.6] the driver will only receive the RCEB + * of a SET IE command after the device sent the first beacon that includes + * the IEs specified in the SET IE command. So, after we start beaconing we + * check if there is anything in the IE cache and call the SET IE command + * if needed. + */ +int uwb_rc_beacon(struct uwb_rc *rc, int channel, unsigned bpst_offset) +{ + int result; + struct device *dev = &rc->uwb_dev.dev; + + mutex_lock(&rc->uwb_dev.mutex); + if (channel < 0) + channel = -1; + if (channel == -1) + result = uwb_rc_stop_beacon(rc); + else { + /* channel >= 0...dah */ + result = uwb_rc_start_beacon(rc, bpst_offset, channel); + if (result < 0) + goto out_up; + if (le16_to_cpu(rc->ies->wIELength) > 0) { + result = uwb_rc_set_ie(rc, rc->ies); + if (result < 0) { + dev_err(dev, "Cannot set new IE on device: " + "%d\n", result); + result = uwb_rc_stop_beacon(rc); + channel = -1; + bpst_offset = 0; + } else + result = 0; + } + } + + if (result < 0) + goto out_up; + rc->beaconing = channel; + + uwb_notify(rc, NULL, uwb_bg_joined(rc) ? UWB_NOTIF_BG_JOIN : UWB_NOTIF_BG_LEAVE); + +out_up: + mutex_unlock(&rc->uwb_dev.mutex); + return result; +} + +/* + * Beacon cache + * + * The purpose of this is to speed up the lookup of becon information + * when a new beacon arrives. The UWB Daemon uses it also to keep a + * tab of which devices are in radio distance and which not. When a + * device's beacon stays present for more than a certain amount of + * time, it is considered a new, usable device. When a beacon ceases + * to be received for a certain amount of time, it is considered that + * the device is gone. + * + * FIXME: use an allocator for the entries + * FIXME: use something faster for search than a list + */ + +struct uwb_beca uwb_beca = { + .list = LIST_HEAD_INIT(uwb_beca.list), + .mutex = __MUTEX_INITIALIZER(uwb_beca.mutex) +}; + + +void uwb_bce_kfree(struct kref *_bce) +{ + struct uwb_beca_e *bce = container_of(_bce, struct uwb_beca_e, refcnt); + + kfree(bce->be); + kfree(bce); +} + + +/* Find a beacon by dev addr in the cache */ +static +struct uwb_beca_e *__uwb_beca_find_bydev(const struct uwb_dev_addr *dev_addr) +{ + struct uwb_beca_e *bce, *next; + list_for_each_entry_safe(bce, next, &uwb_beca.list, node) { + d_printf(6, NULL, "looking for addr %02x:%02x in %02x:%02x\n", + dev_addr->data[0], dev_addr->data[1], + bce->dev_addr.data[0], bce->dev_addr.data[1]); + if (!memcmp(&bce->dev_addr, dev_addr, sizeof(bce->dev_addr))) + goto out; + } + bce = NULL; +out: + return bce; +} + +/* Find a beacon by dev addr in the cache */ +static +struct uwb_beca_e *__uwb_beca_find_bymac(const struct uwb_mac_addr *mac_addr) +{ + struct uwb_beca_e *bce, *next; + list_for_each_entry_safe(bce, next, &uwb_beca.list, node) { + if (!memcmp(bce->mac_addr, mac_addr->data, + sizeof(bce->mac_addr))) + goto out; + } + bce = NULL; +out: + return bce; +} + +/** + * uwb_dev_get_by_devaddr - get a UWB device with a specific DevAddr + * @rc: the radio controller that saw the device + * @devaddr: DevAddr of the UWB device to find + * + * There may be more than one matching device (in the case of a + * DevAddr conflict), but only the first one is returned. + */ +struct uwb_dev *uwb_dev_get_by_devaddr(struct uwb_rc *rc, + const struct uwb_dev_addr *devaddr) +{ + struct uwb_dev *found = NULL; + struct uwb_beca_e *bce; + + mutex_lock(&uwb_beca.mutex); + bce = __uwb_beca_find_bydev(devaddr); + if (bce) + found = uwb_dev_try_get(rc, bce->uwb_dev); + mutex_unlock(&uwb_beca.mutex); + + return found; +} + +/** + * uwb_dev_get_by_macaddr - get a UWB device with a specific EUI-48 + * @rc: the radio controller that saw the device + * @devaddr: EUI-48 of the UWB device to find + */ +struct uwb_dev *uwb_dev_get_by_macaddr(struct uwb_rc *rc, + const struct uwb_mac_addr *macaddr) +{ + struct uwb_dev *found = NULL; + struct uwb_beca_e *bce; + + mutex_lock(&uwb_beca.mutex); + bce = __uwb_beca_find_bymac(macaddr); + if (bce) + found = uwb_dev_try_get(rc, bce->uwb_dev); + mutex_unlock(&uwb_beca.mutex); + + return found; +} + +/* Initialize a beacon cache entry */ +static void uwb_beca_e_init(struct uwb_beca_e *bce) +{ + mutex_init(&bce->mutex); + kref_init(&bce->refcnt); + stats_init(&bce->lqe_stats); + stats_init(&bce->rssi_stats); +} + +/* + * Add a beacon to the cache + * + * @be: Beacon event information + * @bf: Beacon frame (part of b, really) + * @ts_jiffies: Timestamp (in jiffies) when the beacon was received + */ +struct uwb_beca_e *__uwb_beca_add(struct uwb_rc_evt_beacon *be, + struct uwb_beacon_frame *bf, + unsigned long ts_jiffies) +{ + struct uwb_beca_e *bce; + + bce = kzalloc(sizeof(*bce), GFP_KERNEL); + if (bce == NULL) + return NULL; + uwb_beca_e_init(bce); + bce->ts_jiffies = ts_jiffies; + bce->uwb_dev = NULL; + list_add(&bce->node, &uwb_beca.list); + return bce; +} + +/* + * Wipe out beacon entries that became stale + * + * Remove associated devicest too. + */ +void uwb_beca_purge(void) +{ + struct uwb_beca_e *bce, *next; + unsigned long now = jiffies; + mutex_lock(&uwb_beca.mutex); + list_for_each_entry_safe(bce, next, &uwb_beca.list, node) { + if (now - bce->ts_jiffies + > msecs_to_jiffies(beacon_timeout_ms)) { + uwbd_dev_offair(bce); + list_del(&bce->node); + uwb_bce_put(bce); + } + } + mutex_unlock(&uwb_beca.mutex); +} + +/* Clean up the whole beacon cache. Called on shutdown */ +void uwb_beca_release(void) +{ + struct uwb_beca_e *bce, *next; + mutex_lock(&uwb_beca.mutex); + list_for_each_entry_safe(bce, next, &uwb_beca.list, node) { + list_del(&bce->node); + uwb_bce_put(bce); + } + mutex_unlock(&uwb_beca.mutex); +} + +static void uwb_beacon_print(struct uwb_rc *rc, struct uwb_rc_evt_beacon *be, + struct uwb_beacon_frame *bf) +{ + char macbuf[UWB_ADDR_STRSIZE]; + char devbuf[UWB_ADDR_STRSIZE]; + char dstbuf[UWB_ADDR_STRSIZE]; + + uwb_mac_addr_print(macbuf, sizeof(macbuf), &bf->Device_Identifier); + uwb_dev_addr_print(devbuf, sizeof(devbuf), &bf->hdr.SrcAddr); + uwb_dev_addr_print(dstbuf, sizeof(dstbuf), &bf->hdr.DestAddr); + dev_info(&rc->uwb_dev.dev, + "BEACON from %s to %s (ch%u offset %u slot %u MAC %s)\n", + devbuf, dstbuf, be->bChannelNumber, be->wBPSTOffset, + bf->Beacon_Slot_Number, macbuf); +} + +/* + * @bce: beacon cache entry, referenced + */ +ssize_t uwb_bce_print_IEs(struct uwb_dev *uwb_dev, struct uwb_beca_e *bce, + char *buf, size_t size) +{ + ssize_t result = 0; + struct uwb_rc_evt_beacon *be; + struct uwb_beacon_frame *bf; + struct uwb_buf_ctx ctx = { + .buf = buf, + .bytes = 0, + .size = size + }; + + mutex_lock(&bce->mutex); + be = bce->be; + if (be == NULL) + goto out; + bf = (void *) be->BeaconInfo; + uwb_ie_for_each(uwb_dev, uwb_ie_dump_hex, &ctx, + bf->IEData, be->wBeaconInfoLength - sizeof(*bf)); + result = ctx.bytes; +out: + mutex_unlock(&bce->mutex); + return result; +} + +/* + * Verify that the beacon event, frame and IEs are ok + */ +static int uwb_verify_beacon(struct uwb_rc *rc, struct uwb_event *evt, + struct uwb_rc_evt_beacon *be) +{ + int result = -EINVAL; + struct uwb_beacon_frame *bf; + struct device *dev = &rc->uwb_dev.dev; + + /* Is there enough data to decode a beacon frame? */ + if (evt->size < sizeof(*be) + sizeof(*bf)) { + dev_err(dev, "BEACON event: Not enough data to decode " + "(%zu vs %zu bytes needed)\n", evt->size, + sizeof(*be) + sizeof(*bf)); + goto error; + } + /* FIXME: make sure beacon frame IEs are fine and that the whole thing + * is consistent */ + result = 0; +error: + return result; +} + +/* + * Handle UWB_RC_EVT_BEACON events + * + * We check the beacon cache to see how the received beacon fares. If + * is there already we refresh the timestamp. If not we create a new + * entry. + * + * According to the WHCI and WUSB specs, only one beacon frame is + * allowed per notification block, so we don't bother about scanning + * for more. + */ +int uwbd_evt_handle_rc_beacon(struct uwb_event *evt) +{ + int result = -EINVAL; + struct uwb_rc *rc; + struct uwb_rc_evt_beacon *be; + struct uwb_beacon_frame *bf; + struct uwb_beca_e *bce; + struct device *dev = &evt->rc->uwb_dev.dev; + unsigned long last_ts; + + rc = evt->rc; + be = container_of(evt->rceb, struct uwb_rc_evt_beacon, rceb); + result = uwb_verify_beacon(rc, evt, be); + if (result < 0) + return result; + + /* Ignore beacon if it is from an alien. */ + if (be->bBeaconType == UWB_RC_BEACON_TYPE_OL_ALIEN || + be->bBeaconType == UWB_RC_BEACON_TYPE_NOL_ALIEN) { + if (printk_ratelimit()) + dev_err(dev, "BEACON received from ALIEN. Action? \n"); + result = -ENOSYS; + return 0; + } + bf = (struct uwb_beacon_frame *) be->BeaconInfo; + + /* + * Drop beacons from devices with a NULL EUI-48 -- they cannot + * be uniquely identified. + * + * It's expected that these will all be WUSB devices and they + * have a WUSB specific connection method so ignoring them + * here shouldn't be a problem. + */ + if (uwb_mac_addr_bcast(&bf->Device_Identifier)) + return 0; + + mutex_lock(&uwb_beca.mutex); + bce = __uwb_beca_find_bymac(&bf->Device_Identifier); + if (bce == NULL) { + /* Not in there, a new device is pinging */ + uwb_beacon_print(evt->rc, be, bf); + bce = __uwb_beca_add(be, bf, evt->ts_jiffies); + if (bce == NULL) { + mutex_unlock(&uwb_beca.mutex); + return -ENOMEM; + } + } + mutex_unlock(&uwb_beca.mutex); + + mutex_lock(&bce->mutex); + /* purge old beacon data */ + kfree(bce->be); + + last_ts = bce->ts_jiffies; + + /* Update commonly used fields */ + bce->ts_jiffies = evt->ts_jiffies; + bce->be = be; + bce->dev_addr = bf->hdr.SrcAddr; + bce->mac_addr = &bf->Device_Identifier; + be->wBPSTOffset = le16_to_cpu(be->wBPSTOffset); + be->wBeaconInfoLength = le16_to_cpu(be->wBeaconInfoLength); + stats_add_sample(&bce->lqe_stats, be->bLQI - 7); + stats_add_sample(&bce->rssi_stats, be->bRSSI + 18); + + /* + * Wait until at least mMaxLostBeacons beacons have been + * received before considering a new device as present. + */ + bce->hits++; + if (bce->uwb_dev == NULL && bce->hits > UWB_MAX_LOST_BEACONS) { + if (time_before(bce->ts_jiffies, + last_ts + msecs_to_jiffies(beacon_timeout_ms))) + uwbd_dev_onair(evt->rc, bce); + else + bce->hits = 0; + } + mutex_unlock(&bce->mutex); + + return 1; /* we keep the event data */ +} + +/* + * Handle UWB_RC_EVT_BEACON_SIZE events + * + * XXXXX + */ +int uwbd_evt_handle_rc_beacon_size(struct uwb_event *evt) +{ + int result = -EINVAL; + struct device *dev = &evt->rc->uwb_dev.dev; + struct uwb_rc_evt_beacon_size *bs; + + /* Is there enough data to decode the event? */ + if (evt->size < sizeof(*bs)) { + dev_err(dev, "BEACON SIZE notification: Not enough data to " + "decode (%zu vs %zu bytes needed)\n", + evt->size, sizeof(*bs)); + goto error; + } + bs = container_of(evt->rceb, struct uwb_rc_evt_beacon_size, rceb); + if (0) + dev_info(dev, "Beacon size changed to %u bytes " + "(FIXME: action?)\n", le16_to_cpu(bs->wNewBeaconSize)); + else { + /* temporary hack until we do something with this message... */ + static unsigned count; + if (++count % 1000 == 0) + dev_info(dev, "Beacon size changed %u times " + "(FIXME: action?)\n", count); + } + result = 0; +error: + return result; +} + +/* + * Handle UWB_RC_EVT_BP_SLOT_CHANGE events + * + * XXXXX + */ +int uwbd_evt_handle_rc_bp_slot_change(struct uwb_event *evt) +{ + int result = -EINVAL; + struct device *dev = &evt->rc->uwb_dev.dev; + struct uwb_rc_evt_bp_slot_change *bpsc; + + /* Is there enough data to decode a beacon frame? */ + if (evt->size < sizeof(*bpsc)) { + printk(KERN_ERR "BP SLOT CHANGE event: Not enough data\n"); + goto error; + } + bpsc = container_of(evt->rceb, struct uwb_rc_evt_bp_slot_change, rceb); + dev_info(dev, "BP slot changed to #%u (FIXME: action?)\n", + bpsc->bSlotNumber); + result = 0; +error: + return result; +} + +/** + * Handle UWB_RC_EVT_BP_SLOT_CHANGE events + * + * XXXXX + */ +struct uwb_ie_bpo { + struct uwb_ie_hdr hdr; + u8 bp_length; + u8 data[]; +} __attribute__((packed)); + +int uwbd_evt_handle_rc_bpoie_change(struct uwb_event *evt) +{ + int result = -EINVAL; + struct device *dev = &evt->rc->uwb_dev.dev; + struct uwb_rc_evt_bpoie_change *bpoiec; + struct uwb_ie_bpo *bpoie; + static unsigned count; /* FIXME: this is a temp hack */ + size_t iesize; + + /* Is there enough data to decode it? */ + if (evt->size < sizeof(*bpoiec)) { + dev_err(dev, "BPOIEC notification: Not enough data to " + "decode (%zu vs %zu bytes needed)\n", + evt->size, sizeof(*bpoiec)); + goto error; + } + bpoiec = container_of(evt->rceb, struct uwb_rc_evt_bpoie_change, rceb); + iesize = le16_to_cpu(bpoiec->wBPOIELength); + if (iesize < sizeof(*bpoie)) { + dev_err(dev, "BPOIEC notification: Not enough IE data to " + "decode (%zu vs %zu bytes needed)\n", + iesize, sizeof(*bpoie)); + goto error; + } + if (++count % 1000 == 0) /* Lame placeholder */ + dev_info(dev, "BPOIE: %u changes received\n", count); + /* + * FIXME: At this point we should go over all the IEs in the + * bpoiec->BPOIE array and act on each. + */ + result = 0; +error: + return result; +} + +/** + * uwb_bg_joined - is the RC in a beacon group? + * @rc: the radio controller + * + * Returns true if the radio controller is in a beacon group (even if + * it's the sole member). + */ +int uwb_bg_joined(struct uwb_rc *rc) +{ + return rc->beaconing != -1; +} +EXPORT_SYMBOL_GPL(uwb_bg_joined); + +/* + * Print beaconing state. + */ +static ssize_t uwb_rc_beacon_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_rc *rc = uwb_dev->rc; + ssize_t result; + + mutex_lock(&rc->uwb_dev.mutex); + result = sprintf(buf, + "state: %s\n" + "channel: %d\n" + "\n" + "# CHANNEL [BPST-OFFSET]\n" + "# start beaconing on CHANNEL " + "(or stop if CHANNEL is -1)\n" + "# AA:BB:CC:DD:EE:FF\n" + "# XX:YY\n" + "# try joining the beacon group containing a " + "specific device\n" + "# (EUI-48 or DevAddr)\n", + rc->beaconing == -1? "disabled" : "enabled", + rc->beaconing); + mutex_unlock(&rc->uwb_dev.mutex); + return result; +} + +/* + * Start beaconing on the specified channel, or stop beaconing. + * + * The BPST offset of when to start searching for a beacon group to + * join may be specified. + */ +static ssize_t uwb_rc_beacon_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_rc *rc = uwb_dev->rc; + struct uwb_dev_addr devaddr; + struct uwb_mac_addr macaddr; + unsigned bpst_offset = 0; + ssize_t result; + int channel; + + result = sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx\n", + &macaddr.data[0], &macaddr.data[1], &macaddr.data[2], + &macaddr.data[3], &macaddr.data[4], &macaddr.data[5]); + if (result == 6) { + /* given a device, extract params */ + struct uwb_beca_e *beca; + result = -ENODEV; + mutex_lock(&uwb_beca.mutex); + beca = __uwb_beca_find_bymac(&macaddr); + if (beca != NULL) { + mutex_lock(&beca->mutex); + channel = beca->be->bChannelNumber; + bpst_offset = beca->be->wBPSTOffset; + mutex_unlock(&beca->mutex); + result = 0; + } + mutex_unlock(&uwb_beca.mutex); + if (result < 0) + goto error; + if (rc->scan_type != UWB_SCAN_DISABLED) + uwb_rc_scan(rc, channel, UWB_SCAN_DISABLED, 0); + goto out_beacon; + } + result = sscanf(buf, "%hhx:%hhx\n", &devaddr.data[1], &devaddr.data[0]); + if (result == 2) { + /* given a device, extract params */ + struct uwb_beca_e *beca; + result = -ENODEV; + mutex_lock(&uwb_beca.mutex); + beca = __uwb_beca_find_bydev(&devaddr); + if (beca != NULL) { + mutex_lock(&beca->mutex); + channel = beca->be->bChannelNumber; + bpst_offset = beca->be->wBPSTOffset; + mutex_unlock(&beca->mutex); + result = 0; + } + mutex_unlock(&uwb_beca.mutex); + if (result < 0) + goto error; + if (rc->scan_type != UWB_SCAN_DISABLED) + uwb_rc_scan(rc, channel, UWB_SCAN_DISABLED, 0); + goto out_beacon; + } + result = sscanf(buf, "%d %u\n", &channel, &bpst_offset); + if (result >= 1) + goto out_beacon; + result = -EINVAL; + goto error; + +out_beacon: + result = uwb_rc_beacon(rc, channel, bpst_offset); +error: + return result < 0 ? result : size; +} +DEVICE_ATTR(beacon, S_IRUGO | S_IWUSR, uwb_rc_beacon_show, uwb_rc_beacon_store); diff --git a/drivers/uwb/driver.c b/drivers/uwb/driver.c new file mode 100644 index 000000000000..7eee8e408308 --- /dev/null +++ b/drivers/uwb/driver.c @@ -0,0 +1,142 @@ +/* + * Ultra Wide Band + * Driver initialization, etc + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * + * Life cycle: FIXME: explain + * + * UWB radio controller: + * + * 1. alloc a uwb_rc, zero it + * 2. call uwb_rc_init() on it to set it up + ops (won't do any + * kind of allocation) + * 3. register (now it is owned by the UWB stack--deregister before + * freeing/destroying). + * 4. It lives on it's own now (UWB stack handles)--when it + * disconnects, call unregister() + * 5. free it. + * + * Make sure you have a reference to the uwb_rc before calling + * any of the UWB API functions. + * + * TODO: + * + * 1. Locking and life cycle management is crappy still. All entry + * points to the UWB HCD API assume you have a reference on the + * uwb_rc structure and that it won't go away. They mutex lock it + * before doing anything. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/kdev_t.h> +#include <linux/random.h> +#include <linux/uwb/debug.h> +#include "uwb-internal.h" + + +/* UWB stack attributes (or 'global' constants) */ + + +/** + * If a beacon dissapears for longer than this, then we consider the + * device who was represented by that beacon to be gone. + * + * ECMA-368[17.2.3, last para] establishes that a device must not + * consider a device to be its neighbour if he doesn't receive a beacon + * for more than mMaxLostBeacons. mMaxLostBeacons is defined in + * ECMA-368[17.16] as 3; because we can get only one beacon per + * superframe, that'd be 3 * 65ms = 195 ~ 200 ms. Let's give it time + * for jitter and stuff and make it 500 ms. + */ +unsigned long beacon_timeout_ms = 500; + +static +ssize_t beacon_timeout_ms_show(struct class *class, char *buf) +{ + return scnprintf(buf, PAGE_SIZE, "%lu\n", beacon_timeout_ms); +} + +static +ssize_t beacon_timeout_ms_store(struct class *class, + const char *buf, size_t size) +{ + unsigned long bt; + ssize_t result; + result = sscanf(buf, "%lu", &bt); + if (result != 1) + return -EINVAL; + beacon_timeout_ms = bt; + return size; +} + +static struct class_attribute uwb_class_attrs[] = { + __ATTR(beacon_timeout_ms, S_IWUSR | S_IRUGO, + beacon_timeout_ms_show, beacon_timeout_ms_store), + __ATTR_NULL, +}; + +/** Device model classes */ +struct class uwb_rc_class = { + .name = "uwb_rc", + .class_attrs = uwb_class_attrs, +}; + + +static int __init uwb_subsys_init(void) +{ + int result = 0; + + result = uwb_est_create(); + if (result < 0) { + printk(KERN_ERR "uwb: Can't initialize EST subsystem\n"); + goto error_est_init; + } + + result = class_register(&uwb_rc_class); + if (result < 0) + goto error_uwb_rc_class_register; + uwbd_start(); + return 0; + +error_uwb_rc_class_register: + uwb_est_destroy(); +error_est_init: + return result; +} +module_init(uwb_subsys_init); + +static void __exit uwb_subsys_exit(void) +{ + uwbd_stop(); + class_unregister(&uwb_rc_class); + uwb_est_destroy(); + return; +} +module_exit(uwb_subsys_exit); + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Ultra Wide Band core"); +MODULE_LICENSE("GPL"); diff --git a/drivers/uwb/drp-avail.c b/drivers/uwb/drp-avail.c new file mode 100644 index 000000000000..4cc781e09fc8 --- /dev/null +++ b/drivers/uwb/drp-avail.c @@ -0,0 +1,288 @@ +/* + * Ultra Wide Band + * DRP availability management + * + * Copyright (C) 2005-2006 Intel Corporation + * Reinette Chatre <reinette.chatre@intel.com> + * Copyright (C) 2008 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * + * Manage DRP Availability (the MAS available for DRP + * reservations). Thus: + * + * - Handle DRP Availability Change notifications + * + * - Allow the reservation manager to indicate MAS reserved/released + * by local (owned by/targeted at the radio controller) + * reservations. + * + * - Based on the two sources above, generate a DRP Availability IE to + * be included in the beacon. + * + * See also the documentation for struct uwb_drp_avail. + */ + +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/bitmap.h> +#include "uwb-internal.h" + +/** + * uwb_drp_avail_init - initialize an RC's MAS availability + * + * All MAS are available initially. The RC will inform use which + * slots are used for the BP (it may change in size). + */ +void uwb_drp_avail_init(struct uwb_rc *rc) +{ + bitmap_fill(rc->drp_avail.global, UWB_NUM_MAS); + bitmap_fill(rc->drp_avail.local, UWB_NUM_MAS); + bitmap_fill(rc->drp_avail.pending, UWB_NUM_MAS); +} + +/* + * Determine MAS available for new local reservations. + * + * avail = global & local & pending + */ +static void uwb_drp_available(struct uwb_rc *rc, struct uwb_mas_bm *avail) +{ + bitmap_and(avail->bm, rc->drp_avail.global, rc->drp_avail.local, UWB_NUM_MAS); + bitmap_and(avail->bm, avail->bm, rc->drp_avail.pending, UWB_NUM_MAS); +} + +/** + * uwb_drp_avail_reserve_pending - reserve MAS for a new reservation + * @rc: the radio controller + * @mas: the MAS to reserve + * + * Returns 0 on success, or -EBUSY if the MAS requested aren't available. + */ +int uwb_drp_avail_reserve_pending(struct uwb_rc *rc, struct uwb_mas_bm *mas) +{ + struct uwb_mas_bm avail; + + uwb_drp_available(rc, &avail); + if (!bitmap_subset(mas->bm, avail.bm, UWB_NUM_MAS)) + return -EBUSY; + + bitmap_andnot(rc->drp_avail.pending, rc->drp_avail.pending, mas->bm, UWB_NUM_MAS); + return 0; +} + +/** + * uwb_drp_avail_reserve - reserve MAS for an established reservation + * @rc: the radio controller + * @mas: the MAS to reserve + */ +void uwb_drp_avail_reserve(struct uwb_rc *rc, struct uwb_mas_bm *mas) +{ + bitmap_or(rc->drp_avail.pending, rc->drp_avail.pending, mas->bm, UWB_NUM_MAS); + bitmap_andnot(rc->drp_avail.local, rc->drp_avail.local, mas->bm, UWB_NUM_MAS); + rc->drp_avail.ie_valid = false; +} + +/** + * uwb_drp_avail_release - release MAS from a pending or established reservation + * @rc: the radio controller + * @mas: the MAS to release + */ +void uwb_drp_avail_release(struct uwb_rc *rc, struct uwb_mas_bm *mas) +{ + bitmap_or(rc->drp_avail.local, rc->drp_avail.local, mas->bm, UWB_NUM_MAS); + bitmap_or(rc->drp_avail.pending, rc->drp_avail.pending, mas->bm, UWB_NUM_MAS); + rc->drp_avail.ie_valid = false; +} + +/** + * uwb_drp_avail_ie_update - update the DRP Availability IE + * @rc: the radio controller + * + * avail = global & local + */ +void uwb_drp_avail_ie_update(struct uwb_rc *rc) +{ + struct uwb_mas_bm avail; + + bitmap_and(avail.bm, rc->drp_avail.global, rc->drp_avail.local, UWB_NUM_MAS); + + rc->drp_avail.ie.hdr.element_id = UWB_IE_DRP_AVAILABILITY; + rc->drp_avail.ie.hdr.length = UWB_NUM_MAS / 8; + uwb_mas_bm_copy_le(rc->drp_avail.ie.bmp, &avail); + rc->drp_avail.ie_valid = true; +} + +/** + * Create an unsigned long from a buffer containing a byte stream. + * + * @array: pointer to buffer + * @itr: index of buffer from where we start + * @len: the buffer's remaining size may not be exact multiple of + * sizeof(unsigned long), @len is the length of buffer that needs + * to be converted. This will be sizeof(unsigned long) or smaller + * (BUG if not). If it is smaller then we will pad the remaining + * space of the result with zeroes. + */ +static +unsigned long get_val(u8 *array, size_t itr, size_t len) +{ + unsigned long val = 0; + size_t top = itr + len; + + BUG_ON(len > sizeof(val)); + + while (itr < top) { + val <<= 8; + val |= array[top - 1]; + top--; + } + val <<= 8 * (sizeof(val) - len); /* padding */ + return val; +} + +/** + * Initialize bitmap from data buffer. + * + * The bitmap to be converted could come from a IE, for example a + * DRP Availability IE. + * From ECMA-368 1.0 [16.8.7]: " + * octets: 1 1 N * (0 to 32) + * Element ID Length (=N) DRP Availability Bitmap + * + * The DRP Availability Bitmap field is up to 256 bits long, one + * bit for each MAS in the superframe, where the least-significant + * bit of the field corresponds to the first MAS in the superframe + * and successive bits correspond to successive MASs." + * + * The DRP Availability bitmap is in octets from 0 to 32, so octet + * 32 contains bits for MAS 1-8, etc. If the bitmap is smaller than 32 + * octets, the bits in octets not included at the end of the bitmap are + * treated as zero. In this case (when the bitmap is smaller than 32 + * octets) the MAS represented range from MAS 1 to MAS (size of bitmap) + * with the last octet still containing bits for MAS 1-8, etc. + * + * For example: + * F00F0102 03040506 0708090A 0B0C0D0E 0F010203 + * ^^^^ + * |||| + * |||| + * |||\LSB of byte is MAS 9 + * ||\MSB of byte is MAS 16 + * |\LSB of first byte is MAS 1 + * \ MSB of byte is MAS 8 + * + * An example of this encoding can be found in ECMA-368 Annex-D [Table D.11] + * + * The resulting bitmap will have the following mapping: + * bit position 0 == MAS 1 + * bit position 1 == MAS 2 + * ... + * bit position (UWB_NUM_MAS - 1) == MAS UWB_NUM_MAS + * + * @bmp_itr: pointer to bitmap (can be declared with DECLARE_BITMAP) + * @buffer: pointer to buffer containing bitmap data in big endian + * format (MSB first) + * @buffer_size:number of bytes with which bitmap should be initialized + */ +static +void buffer_to_bmp(unsigned long *bmp_itr, void *_buffer, + size_t buffer_size) +{ + u8 *buffer = _buffer; + size_t itr, len; + unsigned long val; + + itr = 0; + while (itr < buffer_size) { + len = buffer_size - itr >= sizeof(val) ? + sizeof(val) : buffer_size - itr; + val = get_val(buffer, itr, len); + bmp_itr[itr / sizeof(val)] = val; + itr += sizeof(val); + } +} + + +/** + * Extract DRP Availability bitmap from the notification. + * + * The notification that comes in contains a bitmap of (UWB_NUM_MAS / 8) bytes + * We convert that to our internal representation. + */ +static +int uwbd_evt_get_drp_avail(struct uwb_event *evt, unsigned long *bmp) +{ + struct device *dev = &evt->rc->uwb_dev.dev; + struct uwb_rc_evt_drp_avail *drp_evt; + int result = -EINVAL; + + /* Is there enough data to decode the event? */ + if (evt->size < sizeof(*drp_evt)) { + dev_err(dev, "DRP Availability Change: Not enough " + "data to decode event [%zu bytes, %zu " + "needed]\n", evt->size, sizeof(*drp_evt)); + goto error; + } + drp_evt = container_of(evt->rceb, struct uwb_rc_evt_drp_avail, rceb); + buffer_to_bmp(bmp, drp_evt->bmp, UWB_NUM_MAS/8); + result = 0; +error: + return result; +} + + +/** + * Process an incoming DRP Availability notification. + * + * @evt: Event information (packs the actual event data, which + * radio controller it came to, etc). + * + * @returns: 0 on success (so uwbd() frees the event buffer), < 0 + * on error. + * + * According to ECMA-368 1.0 [16.8.7], bits set to ONE indicate that + * the MAS slot is available, bits set to ZERO indicate that the slot + * is busy. + * + * So we clear available slots, we set used slots :) + * + * The notification only marks non-availability based on the BP and + * received DRP IEs that are not for this radio controller. A copy of + * this bitmap is needed to generate the real availability (which + * includes local and pending reservations). + * + * The DRP Availability IE that this radio controller emits will need + * to be updated. + */ +int uwbd_evt_handle_rc_drp_avail(struct uwb_event *evt) +{ + int result; + struct uwb_rc *rc = evt->rc; + DECLARE_BITMAP(bmp, UWB_NUM_MAS); + + result = uwbd_evt_get_drp_avail(evt, bmp); + if (result < 0) + return result; + + mutex_lock(&rc->rsvs_mutex); + bitmap_copy(rc->drp_avail.global, bmp, UWB_NUM_MAS); + rc->drp_avail.ie_valid = false; + mutex_unlock(&rc->rsvs_mutex); + + uwb_rsv_sched_update(rc); + + return 0; +} diff --git a/drivers/uwb/drp-ie.c b/drivers/uwb/drp-ie.c new file mode 100644 index 000000000000..ed51e28a87f6 --- /dev/null +++ b/drivers/uwb/drp-ie.c @@ -0,0 +1,233 @@ +/* + * UWB DRP IE management. + * + * Copyright (C) 2005-2006 Intel Corporation + * Copyright (C) 2008 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/random.h> +#include <linux/uwb.h> + +#include "uwb-internal.h" + +/* + * Allocate a DRP IE. + * + * To save having to free/allocate a DRP IE when its MAS changes, + * enough memory is allocated for the maxiumum number of DRP + * allocation fields. This gives an overhead per reservation of up to + * (UWB_NUM_ZONES - 1) * 4 = 60 octets. + */ +static struct uwb_ie_drp *uwb_drp_ie_alloc(void) +{ + struct uwb_ie_drp *drp_ie; + unsigned tiebreaker; + + drp_ie = kzalloc(sizeof(struct uwb_ie_drp) + + UWB_NUM_ZONES * sizeof(struct uwb_drp_alloc), + GFP_KERNEL); + if (drp_ie) { + drp_ie->hdr.element_id = UWB_IE_DRP; + + get_random_bytes(&tiebreaker, sizeof(unsigned)); + drp_ie->tiebreaker = tiebreaker & 1; + } + return drp_ie; +} + + +/* + * Fill a DRP IE's allocation fields from a MAS bitmap. + */ +static void uwb_drp_ie_from_bm(struct uwb_ie_drp *drp_ie, + struct uwb_mas_bm *mas) +{ + int z, i, num_fields = 0, next = 0; + struct uwb_drp_alloc *zones; + __le16 current_bmp; + DECLARE_BITMAP(tmp_bmp, UWB_NUM_MAS); + DECLARE_BITMAP(tmp_mas_bm, UWB_MAS_PER_ZONE); + + zones = drp_ie->allocs; + + bitmap_copy(tmp_bmp, mas->bm, UWB_NUM_MAS); + + /* Determine unique MAS bitmaps in zones from bitmap. */ + for (z = 0; z < UWB_NUM_ZONES; z++) { + bitmap_copy(tmp_mas_bm, tmp_bmp, UWB_MAS_PER_ZONE); + if (bitmap_weight(tmp_mas_bm, UWB_MAS_PER_ZONE) > 0) { + bool found = false; + current_bmp = (__le16) *tmp_mas_bm; + for (i = 0; i < next; i++) { + if (current_bmp == zones[i].mas_bm) { + zones[i].zone_bm |= 1 << z; + found = true; + break; + } + } + if (!found) { + num_fields++; + zones[next].zone_bm = 1 << z; + zones[next].mas_bm = current_bmp; + next++; + } + } + bitmap_shift_right(tmp_bmp, tmp_bmp, UWB_MAS_PER_ZONE, UWB_NUM_MAS); + } + + /* Store in format ready for transmission (le16). */ + for (i = 0; i < num_fields; i++) { + drp_ie->allocs[i].zone_bm = cpu_to_le16(zones[i].zone_bm); + drp_ie->allocs[i].mas_bm = cpu_to_le16(zones[i].mas_bm); + } + + drp_ie->hdr.length = sizeof(struct uwb_ie_drp) - sizeof(struct uwb_ie_hdr) + + num_fields * sizeof(struct uwb_drp_alloc); +} + +/** + * uwb_drp_ie_update - update a reservation's DRP IE + * @rsv: the reservation + */ +int uwb_drp_ie_update(struct uwb_rsv *rsv) +{ + struct device *dev = &rsv->rc->uwb_dev.dev; + struct uwb_ie_drp *drp_ie; + int reason_code, status; + + switch (rsv->state) { + case UWB_RSV_STATE_NONE: + kfree(rsv->drp_ie); + rsv->drp_ie = NULL; + return 0; + case UWB_RSV_STATE_O_INITIATED: + reason_code = UWB_DRP_REASON_ACCEPTED; + status = 0; + break; + case UWB_RSV_STATE_O_PENDING: + reason_code = UWB_DRP_REASON_ACCEPTED; + status = 0; + break; + case UWB_RSV_STATE_O_MODIFIED: + reason_code = UWB_DRP_REASON_MODIFIED; + status = 1; + break; + case UWB_RSV_STATE_O_ESTABLISHED: + reason_code = UWB_DRP_REASON_ACCEPTED; + status = 1; + break; + case UWB_RSV_STATE_T_ACCEPTED: + reason_code = UWB_DRP_REASON_ACCEPTED; + status = 1; + break; + case UWB_RSV_STATE_T_DENIED: + reason_code = UWB_DRP_REASON_DENIED; + status = 0; + break; + default: + dev_dbg(dev, "rsv with unhandled state (%d)\n", rsv->state); + return -EINVAL; + } + + if (rsv->drp_ie == NULL) { + rsv->drp_ie = uwb_drp_ie_alloc(); + if (rsv->drp_ie == NULL) + return -ENOMEM; + } + drp_ie = rsv->drp_ie; + + drp_ie->owner = uwb_rsv_is_owner(rsv); + drp_ie->status = status; + drp_ie->reason_code = reason_code; + drp_ie->stream_index = rsv->stream; + drp_ie->type = rsv->type; + drp_ie->DRP_Control = cpu_to_le16(drp_ie->DRP_Control); + + if (uwb_rsv_is_owner(rsv)) { + switch (rsv->target.type) { + case UWB_RSV_TARGET_DEV: + drp_ie->dev_addr = rsv->target.dev->dev_addr; + break; + case UWB_RSV_TARGET_DEVADDR: + drp_ie->dev_addr = rsv->target.devaddr; + break; + } + } else + drp_ie->dev_addr = rsv->owner->dev_addr; + + uwb_drp_ie_from_bm(drp_ie, &rsv->mas); + + rsv->ie_valid = true; + return 0; +} + +/* + * Set MAS bits from given MAS bitmap in a single zone of large bitmap. + * + * We are given a zone id and the MAS bitmap of bits that need to be set in + * this zone. Note that this zone may already have bits set and this only + * adds settings - we cannot simply assign the MAS bitmap contents to the + * zone contents. We iterate over the the bits (MAS) in the zone and set the + * bits that are set in the given MAS bitmap. + */ +static +void uwb_drp_ie_single_zone_to_bm(struct uwb_mas_bm *bm, u8 zone, u16 mas_bm) +{ + int mas; + u16 mas_mask; + + for (mas = 0; mas < UWB_MAS_PER_ZONE; mas++) { + mas_mask = 1 << mas; + if (mas_bm & mas_mask) + set_bit(zone * UWB_NUM_ZONES + mas, bm->bm); + } +} + +/** + * uwb_drp_ie_zones_to_bm - convert DRP allocation fields to a bitmap + * @mas: MAS bitmap that will be populated to correspond to the + * allocation fields in the DRP IE + * @drp_ie: the DRP IE that contains the allocation fields. + * + * The input format is an array of MAS allocation fields (16 bit Zone + * bitmap, 16 bit MAS bitmap) as described in [ECMA-368] section + * 16.8.6. The output is a full 256 bit MAS bitmap. + * + * We go over all the allocation fields, for each allocation field we + * know which zones are impacted. We iterate over all the zones + * impacted and call a function that will set the correct MAS bits in + * each zone. + */ +void uwb_drp_ie_to_bm(struct uwb_mas_bm *bm, const struct uwb_ie_drp *drp_ie) +{ + int numallocs = (drp_ie->hdr.length - 4) / 4; + const struct uwb_drp_alloc *alloc; + int cnt; + u16 zone_bm, mas_bm; + u8 zone; + u16 zone_mask; + + for (cnt = 0; cnt < numallocs; cnt++) { + alloc = &drp_ie->allocs[cnt]; + zone_bm = le16_to_cpu(alloc->zone_bm); + mas_bm = le16_to_cpu(alloc->mas_bm); + for (zone = 0; zone < UWB_NUM_ZONES; zone++) { + zone_mask = 1 << zone; + if (zone_bm & zone_mask) + uwb_drp_ie_single_zone_to_bm(bm, zone, mas_bm); + } + } +} diff --git a/drivers/uwb/drp.c b/drivers/uwb/drp.c new file mode 100644 index 000000000000..b0dcef578b32 --- /dev/null +++ b/drivers/uwb/drp.c @@ -0,0 +1,451 @@ +/* + * Ultra Wide Band + * Dynamic Reservation Protocol handling + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * Copyright (C) 2008 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kthread.h> +#include <linux/freezer.h> +#include <linux/delay.h> +#include "uwb-internal.h" + +/** + * Construct and send the SET DRP IE + * + * @rc: UWB Host controller + * @returns: >= 0 number of bytes still available in the beacon + * < 0 errno code on error. + * + * See WUSB[8.6.2.7]: The host must set all the DRP IEs that it wants the + * device to include in its beacon at the same time. We thus have to + * traverse all reservations and include the DRP IEs of all PENDING + * and NEGOTIATED reservations in a SET DRP command for transmission. + * + * A DRP Availability IE is appended. + * + * rc->uwb_dev.mutex is held + * + * FIXME We currently ignore the returned value indicating the remaining space + * in beacon. This could be used to deny reservation requests earlier if + * determined that they would cause the beacon space to be exceeded. + */ +static +int uwb_rc_gen_send_drp_ie(struct uwb_rc *rc) +{ + int result; + struct device *dev = &rc->uwb_dev.dev; + struct uwb_rc_cmd_set_drp_ie *cmd; + struct uwb_rc_evt_set_drp_ie reply; + struct uwb_rsv *rsv; + int num_bytes = 0; + u8 *IEDataptr; + + result = -ENOMEM; + /* First traverse all reservations to determine memory needed. */ + list_for_each_entry(rsv, &rc->reservations, rc_node) { + if (rsv->drp_ie != NULL) + num_bytes += rsv->drp_ie->hdr.length + 2; + } + num_bytes += sizeof(rc->drp_avail.ie); + cmd = kzalloc(sizeof(*cmd) + num_bytes, GFP_KERNEL); + if (cmd == NULL) + goto error; + cmd->rccb.bCommandType = UWB_RC_CET_GENERAL; + cmd->rccb.wCommand = cpu_to_le16(UWB_RC_CMD_SET_DRP_IE); + cmd->wIELength = num_bytes; + IEDataptr = (u8 *)&cmd->IEData[0]; + + /* Next traverse all reservations to place IEs in allocated memory. */ + list_for_each_entry(rsv, &rc->reservations, rc_node) { + if (rsv->drp_ie != NULL) { + memcpy(IEDataptr, rsv->drp_ie, + rsv->drp_ie->hdr.length + 2); + IEDataptr += rsv->drp_ie->hdr.length + 2; + } + } + memcpy(IEDataptr, &rc->drp_avail.ie, sizeof(rc->drp_avail.ie)); + + reply.rceb.bEventType = UWB_RC_CET_GENERAL; + reply.rceb.wEvent = UWB_RC_CMD_SET_DRP_IE; + result = uwb_rc_cmd(rc, "SET-DRP-IE", &cmd->rccb, + sizeof(*cmd) + num_bytes, &reply.rceb, + sizeof(reply)); + if (result < 0) + goto error_cmd; + result = le16_to_cpu(reply.wRemainingSpace); + if (reply.bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(&rc->uwb_dev.dev, "SET-DRP-IE: command execution " + "failed: %s (%d). RemainingSpace in beacon " + "= %d\n", uwb_rc_strerror(reply.bResultCode), + reply.bResultCode, result); + result = -EIO; + } else { + dev_dbg(dev, "SET-DRP-IE sent. RemainingSpace in beacon " + "= %d.\n", result); + result = 0; + } +error_cmd: + kfree(cmd); +error: + return result; + +} +/** + * Send all DRP IEs associated with this host + * + * @returns: >= 0 number of bytes still available in the beacon + * < 0 errno code on error. + * + * As per the protocol we obtain the host controller device lock to access + * bandwidth structures. + */ +int uwb_rc_send_all_drp_ie(struct uwb_rc *rc) +{ + int result; + + mutex_lock(&rc->uwb_dev.mutex); + result = uwb_rc_gen_send_drp_ie(rc); + mutex_unlock(&rc->uwb_dev.mutex); + return result; +} + +void uwb_drp_handle_timeout(struct uwb_rsv *rsv) +{ + struct device *dev = &rsv->rc->uwb_dev.dev; + + dev_dbg(dev, "reservation timeout in state %s (%d)\n", + uwb_rsv_state_str(rsv->state), rsv->state); + + switch (rsv->state) { + case UWB_RSV_STATE_O_INITIATED: + if (rsv->is_multicast) { + uwb_rsv_set_state(rsv, UWB_RSV_STATE_O_ESTABLISHED); + return; + } + break; + case UWB_RSV_STATE_O_ESTABLISHED: + if (rsv->is_multicast) + return; + break; + default: + break; + } + uwb_rsv_remove(rsv); +} + +/* + * Based on the DRP IE, transition a target reservation to a new + * state. + */ +static void uwb_drp_process_target(struct uwb_rc *rc, struct uwb_rsv *rsv, + struct uwb_ie_drp *drp_ie) +{ + struct device *dev = &rc->uwb_dev.dev; + + if (drp_ie->status) { + switch (drp_ie->reason_code) { + case UWB_DRP_REASON_ACCEPTED: + uwb_rsv_set_state(rsv, UWB_RSV_STATE_T_ACCEPTED); + break; + case UWB_DRP_REASON_MODIFIED: + dev_err(dev, "FIXME: unhandled reason code (%d/%d)\n", + drp_ie->reason_code, drp_ie->status); + break; + default: + dev_warn(dev, "ignoring invalid DRP IE state (%d/%d)\n", + drp_ie->reason_code, drp_ie->status); + } + } else { + switch (drp_ie->reason_code) { + case UWB_DRP_REASON_ACCEPTED: + /* New reservations are handled in uwb_rsv_find(). */ + break; + case UWB_DRP_REASON_DENIED: + uwb_rsv_set_state(rsv, UWB_RSV_STATE_NONE); + break; + case UWB_DRP_REASON_CONFLICT: + case UWB_DRP_REASON_MODIFIED: + dev_err(dev, "FIXME: unhandled reason code (%d/%d)\n", + drp_ie->reason_code, drp_ie->status); + break; + default: + dev_warn(dev, "ignoring invalid DRP IE state (%d/%d)\n", + drp_ie->reason_code, drp_ie->status); + } + } +} + +/* + * Based on the DRP IE, transition an owner reservation to a new + * state. + */ +static void uwb_drp_process_owner(struct uwb_rc *rc, struct uwb_rsv *rsv, + struct uwb_ie_drp *drp_ie) +{ + struct device *dev = &rc->uwb_dev.dev; + + if (drp_ie->status) { + switch (drp_ie->reason_code) { + case UWB_DRP_REASON_ACCEPTED: + uwb_rsv_set_state(rsv, UWB_RSV_STATE_O_ESTABLISHED); + break; + case UWB_DRP_REASON_MODIFIED: + dev_err(dev, "FIXME: unhandled reason code (%d/%d)\n", + drp_ie->reason_code, drp_ie->status); + break; + default: + dev_warn(dev, "ignoring invalid DRP IE state (%d/%d)\n", + drp_ie->reason_code, drp_ie->status); + } + } else { + switch (drp_ie->reason_code) { + case UWB_DRP_REASON_PENDING: + uwb_rsv_set_state(rsv, UWB_RSV_STATE_O_PENDING); + break; + case UWB_DRP_REASON_DENIED: + uwb_rsv_set_state(rsv, UWB_RSV_STATE_NONE); + break; + case UWB_DRP_REASON_CONFLICT: + case UWB_DRP_REASON_MODIFIED: + dev_err(dev, "FIXME: unhandled reason code (%d/%d)\n", + drp_ie->reason_code, drp_ie->status); + break; + default: + dev_warn(dev, "ignoring invalid DRP IE state (%d/%d)\n", + drp_ie->reason_code, drp_ie->status); + } + } +} + +/* + * Process a received DRP IE, it's either for a reservation owned by + * the RC or targeted at it (or it's for a WUSB cluster reservation). + */ +static void uwb_drp_process(struct uwb_rc *rc, struct uwb_dev *src, + struct uwb_ie_drp *drp_ie) +{ + struct uwb_rsv *rsv; + + rsv = uwb_rsv_find(rc, src, drp_ie); + if (!rsv) { + /* + * No reservation? It's either for a recently + * terminated reservation; or the DRP IE couldn't be + * processed (e.g., an invalid IE or out of memory). + */ + return; + } + + /* + * Do nothing with DRP IEs for reservations that have been + * terminated. + */ + if (rsv->state == UWB_RSV_STATE_NONE) { + uwb_rsv_set_state(rsv, UWB_RSV_STATE_NONE); + return; + } + + if (drp_ie->owner) + uwb_drp_process_target(rc, rsv, drp_ie); + else + uwb_drp_process_owner(rc, rsv, drp_ie); +} + + +/* + * Process all the DRP IEs (both DRP IEs and the DRP Availability IE) + * from a device. + */ +static +void uwb_drp_process_all(struct uwb_rc *rc, struct uwb_rc_evt_drp *drp_evt, + size_t ielen, struct uwb_dev *src_dev) +{ + struct device *dev = &rc->uwb_dev.dev; + struct uwb_ie_hdr *ie_hdr; + void *ptr; + + ptr = drp_evt->IEData; + for (;;) { + ie_hdr = uwb_ie_next(&ptr, &ielen); + if (!ie_hdr) + break; + + switch (ie_hdr->element_id) { + case UWB_IE_DRP_AVAILABILITY: + /* FIXME: does something need to be done with this? */ + break; + case UWB_IE_DRP: + uwb_drp_process(rc, src_dev, (struct uwb_ie_drp *)ie_hdr); + break; + default: + dev_warn(dev, "unexpected IE in DRP notification\n"); + break; + } + } + + if (ielen > 0) + dev_warn(dev, "%d octets remaining in DRP notification\n", + (int)ielen); +} + + +/* + * Go through all the DRP IEs and find the ones that conflict with our + * reservations. + * + * FIXME: must resolve the conflict according the the rules in + * [ECMA-368]. + */ +static +void uwb_drp_process_conflict_all(struct uwb_rc *rc, struct uwb_rc_evt_drp *drp_evt, + size_t ielen, struct uwb_dev *src_dev) +{ + struct device *dev = &rc->uwb_dev.dev; + struct uwb_ie_hdr *ie_hdr; + struct uwb_ie_drp *drp_ie; + void *ptr; + + ptr = drp_evt->IEData; + for (;;) { + ie_hdr = uwb_ie_next(&ptr, &ielen); + if (!ie_hdr) + break; + + drp_ie = container_of(ie_hdr, struct uwb_ie_drp, hdr); + + /* FIXME: check if this DRP IE conflicts. */ + } + + if (ielen > 0) + dev_warn(dev, "%d octets remaining in DRP notification\n", + (int)ielen); +} + + +/* + * Terminate all reservations owned by, or targeted at, 'uwb_dev'. + */ +static void uwb_drp_terminate_all(struct uwb_rc *rc, struct uwb_dev *uwb_dev) +{ + struct uwb_rsv *rsv; + + list_for_each_entry(rsv, &rc->reservations, rc_node) { + if (rsv->owner == uwb_dev + || (rsv->target.type == UWB_RSV_TARGET_DEV && rsv->target.dev == uwb_dev)) + uwb_rsv_remove(rsv); + } +} + + +/** + * uwbd_evt_handle_rc_drp - handle a DRP_IE event + * @evt: the DRP_IE event from the radio controller + * + * This processes DRP notifications from the radio controller, either + * initiating a new reservation or transitioning an existing + * reservation into a different state. + * + * DRP notifications can occur for three different reasons: + * + * - UWB_DRP_NOTIF_DRP_IE_RECVD: one or more DRP IEs with the RC as + * the target or source have been recieved. + * + * These DRP IEs could be new or for an existing reservation. + * + * If the DRP IE for an existing reservation ceases to be to + * recieved for at least mMaxLostBeacons, the reservation should be + * considered to be terminated. Note that the TERMINATE reason (see + * below) may not always be signalled (e.g., the remote device has + * two or more reservations established with the RC). + * + * - UWB_DRP_NOTIF_CONFLICT: DRP IEs from any device in the beacon + * group conflict with the RC's reservations. + * + * - UWB_DRP_NOTIF_TERMINATE: DRP IEs are no longer being received + * from a device (i.e., it's terminated all reservations). + * + * Only the software state of the reservations is changed; the setting + * of the radio controller's DRP IEs is done after all the events in + * an event buffer are processed. This saves waiting multiple times + * for the SET_DRP_IE command to complete. + */ +int uwbd_evt_handle_rc_drp(struct uwb_event *evt) +{ + struct device *dev = &evt->rc->uwb_dev.dev; + struct uwb_rc *rc = evt->rc; + struct uwb_rc_evt_drp *drp_evt; + size_t ielength, bytes_left; + struct uwb_dev_addr src_addr; + struct uwb_dev *src_dev; + int reason; + + /* Is there enough data to decode the event (and any IEs in + its payload)? */ + if (evt->size < sizeof(*drp_evt)) { + dev_err(dev, "DRP event: Not enough data to decode event " + "[%zu bytes left, %zu needed]\n", + evt->size, sizeof(*drp_evt)); + return 0; + } + bytes_left = evt->size - sizeof(*drp_evt); + drp_evt = container_of(evt->rceb, struct uwb_rc_evt_drp, rceb); + ielength = le16_to_cpu(drp_evt->wIELength); + if (bytes_left != ielength) { + dev_err(dev, "DRP event: Not enough data in payload [%zu" + "bytes left, %zu declared in the event]\n", + bytes_left, ielength); + return 0; + } + + memcpy(src_addr.data, &drp_evt->wSrcAddr, sizeof(src_addr)); + src_dev = uwb_dev_get_by_devaddr(rc, &src_addr); + if (!src_dev) { + /* + * A DRP notification from an unrecognized device. + * + * This is probably from a WUSB device that doesn't + * have an EUI-48 and therefore doesn't show up in the + * UWB device database. It's safe to simply ignore + * these. + */ + return 0; + } + + mutex_lock(&rc->rsvs_mutex); + + reason = drp_evt->Reason & 0x0f; + + switch (reason) { + case UWB_DRP_NOTIF_DRP_IE_RCVD: + uwb_drp_process_all(rc, drp_evt, ielength, src_dev); + break; + case UWB_DRP_NOTIF_CONFLICT: + uwb_drp_process_conflict_all(rc, drp_evt, ielength, src_dev); + break; + case UWB_DRP_NOTIF_TERMINATE: + uwb_drp_terminate_all(rc, src_dev); + break; + default: + dev_warn(dev, "ignored DRP event with reason code: %d\n", reason); + break; + } + + mutex_unlock(&rc->rsvs_mutex); + + uwb_dev_put(src_dev); + return 0; +} diff --git a/drivers/uwb/est.c b/drivers/uwb/est.c new file mode 100644 index 000000000000..bdb009a6ce89 --- /dev/null +++ b/drivers/uwb/est.c @@ -0,0 +1,414 @@ +/* + * Ultra Wide Band Radio Control + * Event Size Tables management + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * + * Infrastructure, code and data tables for guessing the size of + * events received on the notification endpoints of UWB radio + * controllers. + * + * You define a table of events and for each, its size and how to get + * the extra size. + * + * ENTRY POINTS: + * + * uwb_est_{init/destroy}(): To initialize/release the EST subsystem. + * + * uwb_est_[u]register(): To un/register event size tables + * uwb_est_grow() + * + * uwb_est_find_size(): Get the size of an event + * uwb_est_get_size() + */ +#include <linux/spinlock.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> +#include "uwb-internal.h" + + +struct uwb_est { + u16 type_event_high; + u16 vendor, product; + u8 entries; + const struct uwb_est_entry *entry; +}; + + +static struct uwb_est *uwb_est; +static u8 uwb_est_size; +static u8 uwb_est_used; +static DEFINE_RWLOCK(uwb_est_lock); + +/** + * WUSB Standard Event Size Table, HWA-RC interface + * + * Sizes for events and notifications type 0 (general), high nibble 0. + */ +static +struct uwb_est_entry uwb_est_00_00xx[] = { + [UWB_RC_EVT_BEACON] = { + .size = sizeof(struct uwb_rc_evt_beacon), + .offset = 1 + offsetof(struct uwb_rc_evt_beacon, + wBeaconInfoLength), + }, + [UWB_RC_EVT_BEACON_SIZE] = { + .size = sizeof(struct uwb_rc_evt_beacon_size), + }, + [UWB_RC_EVT_BPOIE_CHANGE] = { + .size = sizeof(struct uwb_rc_evt_bpoie_change), + .offset = 1 + offsetof(struct uwb_rc_evt_bpoie_change, + wBPOIELength), + }, + [UWB_RC_EVT_DRP_AVAIL] = { + .size = sizeof(struct uwb_rc_evt_drp_avail) + }, + [UWB_RC_EVT_DRP] = { + .size = sizeof(struct uwb_rc_evt_drp), + .offset = 1 + offsetof(struct uwb_rc_evt_drp, wIELength), + }, + [UWB_RC_EVT_BP_SLOT_CHANGE] = { + .size = sizeof(struct uwb_rc_evt_bp_slot_change), + }, + [UWB_RC_CMD_CHANNEL_CHANGE] = { .size = 5 }, + [UWB_RC_CMD_DEV_ADDR_MGMT] = { + .size = sizeof(struct uwb_rc_evt_dev_addr_mgmt) }, + [UWB_RC_CMD_GET_IE] = { + .size = sizeof(struct uwb_rc_evt_get_ie), + .offset = 1 + offsetof(struct uwb_rc_evt_get_ie, wIELength), + }, + [UWB_RC_CMD_RESET] = { .size = 5 }, + [UWB_RC_CMD_SCAN] = { .size = 5 }, + [UWB_RC_CMD_SET_BEACON_FILTER] = { .size = 5 }, + [UWB_RC_CMD_SET_DRP_IE] = { .size = 7 }, + [UWB_RC_CMD_SET_IE] = { .size = 7 }, + [UWB_RC_CMD_START_BEACON] = { .size = 5 }, + [UWB_RC_CMD_STOP_BEACON] = { .size = 5 }, +}; + + +/** + * Initialize the EST subsystem + * + * Register the standard tables also. + * + * FIXME: tag init + */ +int uwb_est_create(void) +{ + int result; + + uwb_est_size = 2; + uwb_est_used = 0; + uwb_est = kmalloc(uwb_est_size * sizeof(uwb_est[0]), GFP_KERNEL); + if (uwb_est == NULL) + return -ENOMEM; + memset(uwb_est, 0, uwb_est_size * sizeof(uwb_est[0])); + result = uwb_est_register( + UWB_RC_CET_GENERAL, 0, 0xffff, 0xffff, uwb_est_00_00xx, + sizeof(uwb_est_00_00xx) / sizeof(uwb_est_00_00xx[0])); + return result; +} + + +/** Clean it up */ +void uwb_est_destroy(void) +{ + kfree(uwb_est); + uwb_est = NULL; + uwb_est_size = uwb_est_used = 0; +} + + +/** + * Double the capacity of the EST table + * + * @returns 0 if ok, < 0 errno no error. + */ +static +int uwb_est_grow(void) +{ + size_t actual_size = uwb_est_size * sizeof(uwb_est[0]); + void *new = kmalloc(2 * actual_size, GFP_ATOMIC); + if (new == NULL) + return -ENOMEM; + memcpy(new, uwb_est, actual_size); + memset(new + actual_size, 0, actual_size); + kfree(uwb_est); + uwb_est = new; + uwb_est_size *= 2; + return 0; +} + + +/** + * Register an event size table + * + * Makes room for it if the table is full, and then inserts it in the + * right position (entries are sorted by type, event_high, vendor and + * then product). + * + * @vendor: vendor code for matching against the device (0x0000 and + * 0xffff mean any); use 0x0000 to force all to match without + * checking possible vendor specific ones, 0xfffff to match + * after checking vendor specific ones. + * + * @product: product code from that vendor; same matching rules, use + * 0x0000 for not allowing vendor specific matches, 0xffff + * for allowing. + * + * This arragement just makes the tables sort differenty. Because the + * table is sorted by growing type-event_high-vendor-product, a zero + * vendor will match before than a 0x456a vendor, that will match + * before a 0xfffff vendor. + * + * @returns 0 if ok, < 0 errno on error (-ENOENT if not found). + */ +/* FIXME: add bus type to vendor/product code */ +int uwb_est_register(u8 type, u8 event_high, u16 vendor, u16 product, + const struct uwb_est_entry *entry, size_t entries) +{ + unsigned long flags; + unsigned itr; + u16 type_event_high; + int result = 0; + + write_lock_irqsave(&uwb_est_lock, flags); + if (uwb_est_used == uwb_est_size) { + result = uwb_est_grow(); + if (result < 0) + goto out; + } + /* Find the right spot to insert it in */ + type_event_high = type << 8 | event_high; + for (itr = 0; itr < uwb_est_used; itr++) + if (uwb_est[itr].type_event_high < type + && uwb_est[itr].vendor < vendor + && uwb_est[itr].product < product) + break; + + /* Shift others to make room for the new one? */ + if (itr < uwb_est_used) + memmove(&uwb_est[itr+1], &uwb_est[itr], uwb_est_used - itr); + uwb_est[itr].type_event_high = type << 8 | event_high; + uwb_est[itr].vendor = vendor; + uwb_est[itr].product = product; + uwb_est[itr].entry = entry; + uwb_est[itr].entries = entries; + uwb_est_used++; +out: + write_unlock_irqrestore(&uwb_est_lock, flags); + return result; +} +EXPORT_SYMBOL_GPL(uwb_est_register); + + +/** + * Unregister an event size table + * + * This just removes the specified entry and moves the ones after it + * to fill in the gap. This is needed to keep the list sorted; no + * reallocation is done to reduce the size of the table. + * + * We unregister by all the data we used to register instead of by + * pointer to the @entry array because we might have used the same + * table for a bunch of IDs (for example). + * + * @returns 0 if ok, < 0 errno on error (-ENOENT if not found). + */ +int uwb_est_unregister(u8 type, u8 event_high, u16 vendor, u16 product, + const struct uwb_est_entry *entry, size_t entries) +{ + unsigned long flags; + unsigned itr; + struct uwb_est est_cmp = { + .type_event_high = type << 8 | event_high, + .vendor = vendor, + .product = product, + .entry = entry, + .entries = entries + }; + write_lock_irqsave(&uwb_est_lock, flags); + for (itr = 0; itr < uwb_est_used; itr++) + if (!memcmp(&uwb_est[itr], &est_cmp, sizeof(est_cmp))) + goto found; + write_unlock_irqrestore(&uwb_est_lock, flags); + return -ENOENT; + +found: + if (itr < uwb_est_used - 1) /* Not last one? move ones above */ + memmove(&uwb_est[itr], &uwb_est[itr+1], uwb_est_used - itr - 1); + uwb_est_used--; + write_unlock_irqrestore(&uwb_est_lock, flags); + return 0; +} +EXPORT_SYMBOL_GPL(uwb_est_unregister); + + +/** + * Get the size of an event from a table + * + * @rceb: pointer to the buffer with the event + * @rceb_size: size of the area pointed to by @rceb in bytes. + * @returns: > 0 Size of the event + * -ENOSPC An area big enough was not provided to look + * ahead into the event's guts and guess the size. + * -EINVAL Unknown event code (wEvent). + * + * This will look at the received RCEB and guess what is the total + * size. For variable sized events, it will look further ahead into + * their length field to see how much data should be read. + * + * Note this size is *not* final--the neh (Notification/Event Handle) + * might specificy an extra size to add. + */ +static +ssize_t uwb_est_get_size(struct uwb_rc *uwb_rc, struct uwb_est *est, + u8 event_low, const struct uwb_rceb *rceb, + size_t rceb_size) +{ + unsigned offset; + ssize_t size; + struct device *dev = &uwb_rc->uwb_dev.dev; + const struct uwb_est_entry *entry; + + size = -ENOENT; + if (event_low >= est->entries) { /* in range? */ + if (printk_ratelimit()) + dev_err(dev, "EST %p 0x%04x/%04x/%04x[%u]: " + "event %u out of range\n", + est, est->type_event_high, est->vendor, + est->product, est->entries, + event_low); + goto out; + } + size = -ENOENT; + entry = &est->entry[event_low]; + if (entry->size == 0 && entry->offset == 0) { /* unknown? */ + if (printk_ratelimit()) + dev_err(dev, "EST %p 0x%04x/%04x/%04x[%u]: " + "event %u unknown\n", + est, est->type_event_high, est->vendor, + est->product, est->entries, event_low); + goto out; + } + offset = entry->offset; /* extra fries with that? */ + if (offset == 0) + size = entry->size; + else { + /* Ops, got an extra size field at 'offset'--read it */ + const void *ptr = rceb; + size_t type_size = 0; + offset--; + size = -ENOSPC; /* enough data for more? */ + switch (entry->type) { + case UWB_EST_16: type_size = sizeof(__le16); break; + case UWB_EST_8: type_size = sizeof(u8); break; + default: BUG(); + } + if (offset + type_size >= rceb_size) { + if (printk_ratelimit()) + dev_err(dev, "EST %p 0x%04x/%04x/%04x[%u]: " + "not enough data to read extra size\n", + est, est->type_event_high, est->vendor, + est->product, est->entries); + goto out; + } + size = entry->size; + ptr += offset; + switch (entry->type) { + case UWB_EST_16: size += le16_to_cpu(*(__le16 *)ptr); break; + case UWB_EST_8: size += *(u8 *)ptr; break; + default: BUG(); + } + } +out: + return size; +} + + +/** + * Guesses the size of a WA event + * + * @rceb: pointer to the buffer with the event + * @rceb_size: size of the area pointed to by @rceb in bytes. + * @returns: > 0 Size of the event + * -ENOSPC An area big enough was not provided to look + * ahead into the event's guts and guess the size. + * -EINVAL Unknown event code (wEvent). + * + * This will look at the received RCEB and guess what is the total + * size by checking all the tables registered with + * uwb_est_register(). For variable sized events, it will look further + * ahead into their length field to see how much data should be read. + * + * Note this size is *not* final--the neh (Notification/Event Handle) + * might specificy an extra size to add or replace. + */ +ssize_t uwb_est_find_size(struct uwb_rc *rc, const struct uwb_rceb *rceb, + size_t rceb_size) +{ + /* FIXME: add vendor/product data */ + ssize_t size; + struct device *dev = &rc->uwb_dev.dev; + unsigned long flags; + unsigned itr; + u16 type_event_high, event; + u8 *ptr = (u8 *) rceb; + + read_lock_irqsave(&uwb_est_lock, flags); + d_printf(2, dev, "Size query for event 0x%02x/%04x/%02x," + " buffer size %ld\n", + (unsigned) rceb->bEventType, + (unsigned) le16_to_cpu(rceb->wEvent), + (unsigned) rceb->bEventContext, + (long) rceb_size); + size = -ENOSPC; + if (rceb_size < sizeof(*rceb)) + goto out; + event = le16_to_cpu(rceb->wEvent); + type_event_high = rceb->bEventType << 8 | (event & 0xff00) >> 8; + for (itr = 0; itr < uwb_est_used; itr++) { + d_printf(3, dev, "Checking EST 0x%04x/%04x/%04x\n", + uwb_est[itr].type_event_high, uwb_est[itr].vendor, + uwb_est[itr].product); + if (uwb_est[itr].type_event_high != type_event_high) + continue; + size = uwb_est_get_size(rc, &uwb_est[itr], + event & 0x00ff, rceb, rceb_size); + /* try more tables that might handle the same type */ + if (size != -ENOENT) + goto out; + } + /* FIXME: downgrade to _dbg() */ + if (printk_ratelimit()) + dev_err(dev, "event 0x%02x/%04x/%02x: no handlers available; " + "RCEB %02x %02x %02x %02x\n", + (unsigned) rceb->bEventType, + (unsigned) le16_to_cpu(rceb->wEvent), + (unsigned) rceb->bEventContext, + ptr[0], ptr[1], ptr[2], ptr[3]); + size = -ENOENT; +out: + read_unlock_irqrestore(&uwb_est_lock, flags); + return size; +} +EXPORT_SYMBOL_GPL(uwb_est_find_size); diff --git a/drivers/uwb/hwa-rc.c b/drivers/uwb/hwa-rc.c new file mode 100644 index 000000000000..8fee71080128 --- /dev/null +++ b/drivers/uwb/hwa-rc.c @@ -0,0 +1,915 @@ +/* + * WUSB Host Wire Adapter: Radio Control Interface (WUSB[8.6]) + * Radio Control command/event transport + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Initialize the Radio Control interface Driver. + * + * For each device probed, creates an 'struct hwarc' which contains + * just the representation of the UWB Radio Controller, and the logic + * for reading notifications and passing them to the UWB Core. + * + * So we initialize all of those, register the UWB Radio Controller + * and setup the notification/event handle to pipe the notifications + * to the UWB management Daemon. + * + * Command and event filtering. + * + * This is the driver for the Radio Control Interface described in WUSB + * 1.0. The core UWB module assumes that all drivers are compliant to the + * WHCI 0.95 specification. We thus create a filter that parses all + * incoming messages from the (WUSB 1.0) device and manipulate them to + * conform to the WHCI 0.95 specification. Similarly, outgoing messages + * are parsed and manipulated to conform to the WUSB 1.0 compliant messages + * that the device expects. Only a few messages are affected: + * Affected events: + * UWB_RC_EVT_BEACON + * UWB_RC_EVT_BP_SLOT_CHANGE + * UWB_RC_EVT_DRP_AVAIL + * UWB_RC_EVT_DRP + * Affected commands: + * UWB_RC_CMD_SCAN + * UWB_RC_CMD_SET_DRP_IE + * + * + * + */ +#include <linux/version.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/usb/wusb.h> +#include <linux/usb/wusb-wa.h> +#include <linux/uwb.h> +#include "uwb-internal.h" +#define D_LOCAL 1 +#include <linux/uwb/debug.h> + +/* The device uses commands and events from the WHCI specification, although + * reporting itself as WUSB compliant. */ +#define WUSB_QUIRK_WHCI_CMD_EVT 0x01 + +/** + * Descriptor for an instance of the UWB Radio Control Driver that + * attaches to the RCI interface of the Host Wired Adapter. + * + * Unless there is a lock specific to the 'data members', all access + * is protected by uwb_rc->mutex. + * + * The NEEP (Notification/Event EndPoint) URB (@neep_urb) writes to + * @rd_buffer. Note there is no locking because it is perfectly (heh!) + * serialized--probe() submits an URB, callback is called, processes + * the data (synchronously), submits another URB, and so on. There is + * no concurrent access to the buffer. + */ +struct hwarc { + struct usb_device *usb_dev; + struct usb_interface *usb_iface; + struct uwb_rc *uwb_rc; /* UWB host controller */ + struct urb *neep_urb; /* Notification endpoint handling */ + struct edc neep_edc; + void *rd_buffer; /* NEEP read buffer */ +}; + + +/* Beacon received notification (WUSB 1.0 [8.6.3.2]) */ +struct uwb_rc_evt_beacon_WUSB_0100 { + struct uwb_rceb rceb; + u8 bChannelNumber; + __le16 wBPSTOffset; + u8 bLQI; + u8 bRSSI; + __le16 wBeaconInfoLength; + u8 BeaconInfo[]; +} __attribute__((packed)); + +/** + * Filter WUSB 1.0 BEACON RCV notification to be WHCI 0.95 + * + * @header: the incoming event + * @buf_size: size of buffer containing incoming event + * @new_size: size of event after filtering completed + * + * The WHCI 0.95 spec has a "Beacon Type" field. This value is unknown at + * the time we receive the beacon from WUSB so we just set it to + * UWB_RC_BEACON_TYPE_NEIGHBOR as a default. + * The solution below allocates memory upon receipt of every beacon from a + * WUSB device. This will deteriorate performance. What is the right way to + * do this? + */ +static +int hwarc_filter_evt_beacon_WUSB_0100(struct uwb_rc *rc, + struct uwb_rceb **header, + const size_t buf_size, + size_t *new_size) +{ + struct uwb_rc_evt_beacon_WUSB_0100 *be; + struct uwb_rc_evt_beacon *newbe; + size_t bytes_left, ielength; + struct device *dev = &rc->uwb_dev.dev; + + be = container_of(*header, struct uwb_rc_evt_beacon_WUSB_0100, rceb); + bytes_left = buf_size; + if (bytes_left < sizeof(*be)) { + dev_err(dev, "Beacon Received Notification: Not enough data " + "to decode for filtering (%zu vs %zu bytes needed)\n", + bytes_left, sizeof(*be)); + return -EINVAL; + } + bytes_left -= sizeof(*be); + ielength = le16_to_cpu(be->wBeaconInfoLength); + if (bytes_left < ielength) { + dev_err(dev, "Beacon Received Notification: Not enough data " + "to decode IEs (%zu vs %zu bytes needed)\n", + bytes_left, ielength); + return -EINVAL; + } + newbe = kzalloc(sizeof(*newbe) + ielength, GFP_ATOMIC); + if (newbe == NULL) + return -ENOMEM; + newbe->rceb = be->rceb; + newbe->bChannelNumber = be->bChannelNumber; + newbe->bBeaconType = UWB_RC_BEACON_TYPE_NEIGHBOR; + newbe->wBPSTOffset = be->wBPSTOffset; + newbe->bLQI = be->bLQI; + newbe->bRSSI = be->bRSSI; + newbe->wBeaconInfoLength = be->wBeaconInfoLength; + memcpy(newbe->BeaconInfo, be->BeaconInfo, ielength); + *header = &newbe->rceb; + *new_size = sizeof(*newbe) + ielength; + return 1; /* calling function will free memory */ +} + + +/* DRP Availability change notification (WUSB 1.0 [8.6.3.8]) */ +struct uwb_rc_evt_drp_avail_WUSB_0100 { + struct uwb_rceb rceb; + __le16 wIELength; + u8 IEData[]; +} __attribute__((packed)); + +/** + * Filter WUSB 1.0 DRP AVAILABILITY CHANGE notification to be WHCI 0.95 + * + * @header: the incoming event + * @buf_size: size of buffer containing incoming event + * @new_size: size of event after filtering completed + */ +static +int hwarc_filter_evt_drp_avail_WUSB_0100(struct uwb_rc *rc, + struct uwb_rceb **header, + const size_t buf_size, + size_t *new_size) +{ + struct uwb_rc_evt_drp_avail_WUSB_0100 *da; + struct uwb_rc_evt_drp_avail *newda; + struct uwb_ie_hdr *ie_hdr; + size_t bytes_left, ielength; + struct device *dev = &rc->uwb_dev.dev; + + + da = container_of(*header, struct uwb_rc_evt_drp_avail_WUSB_0100, rceb); + bytes_left = buf_size; + if (bytes_left < sizeof(*da)) { + dev_err(dev, "Not enough data to decode DRP Avail " + "Notification for filtering. Expected %zu, " + "received %zu.\n", (size_t)sizeof(*da), bytes_left); + return -EINVAL; + } + bytes_left -= sizeof(*da); + ielength = le16_to_cpu(da->wIELength); + if (bytes_left < ielength) { + dev_err(dev, "DRP Avail Notification filter: IE length " + "[%zu bytes] does not match actual length " + "[%zu bytes].\n", ielength, bytes_left); + return -EINVAL; + } + if (ielength < sizeof(*ie_hdr)) { + dev_err(dev, "DRP Avail Notification filter: Not enough " + "data to decode IE [%zu bytes, %zu needed]\n", + ielength, sizeof(*ie_hdr)); + return -EINVAL; + } + ie_hdr = (void *) da->IEData; + if (ie_hdr->length > 32) { + dev_err(dev, "DRP Availability Change event has unexpected " + "length for filtering. Expected < 32 bytes, " + "got %zu bytes.\n", (size_t)ie_hdr->length); + return -EINVAL; + } + newda = kzalloc(sizeof(*newda), GFP_ATOMIC); + if (newda == NULL) + return -ENOMEM; + newda->rceb = da->rceb; + memcpy(newda->bmp, (u8 *) ie_hdr + sizeof(*ie_hdr), ie_hdr->length); + *header = &newda->rceb; + *new_size = sizeof(*newda); + return 1; /* calling function will free memory */ +} + + +/* DRP notification (WUSB 1.0 [8.6.3.9]) */ +struct uwb_rc_evt_drp_WUSB_0100 { + struct uwb_rceb rceb; + struct uwb_dev_addr wSrcAddr; + u8 bExplicit; + __le16 wIELength; + u8 IEData[]; +} __attribute__((packed)); + +/** + * Filter WUSB 1.0 DRP Notification to be WHCI 0.95 + * + * @header: the incoming event + * @buf_size: size of buffer containing incoming event + * @new_size: size of event after filtering completed + * + * It is hard to manage DRP reservations without having a Reason code. + * Unfortunately there is none in the WUSB spec. We just set the default to + * DRP IE RECEIVED. + * We do not currently use the bBeaconSlotNumber value, so we set this to + * zero for now. + */ +static +int hwarc_filter_evt_drp_WUSB_0100(struct uwb_rc *rc, + struct uwb_rceb **header, + const size_t buf_size, + size_t *new_size) +{ + struct uwb_rc_evt_drp_WUSB_0100 *drpev; + struct uwb_rc_evt_drp *newdrpev; + size_t bytes_left, ielength; + struct device *dev = &rc->uwb_dev.dev; + + drpev = container_of(*header, struct uwb_rc_evt_drp_WUSB_0100, rceb); + bytes_left = buf_size; + if (bytes_left < sizeof(*drpev)) { + dev_err(dev, "Not enough data to decode DRP Notification " + "for filtering. Expected %zu, received %zu.\n", + (size_t)sizeof(*drpev), bytes_left); + return -EINVAL; + } + ielength = le16_to_cpu(drpev->wIELength); + bytes_left -= sizeof(*drpev); + if (bytes_left < ielength) { + dev_err(dev, "DRP Notification filter: header length [%zu " + "bytes] does not match actual length [%zu " + "bytes].\n", ielength, bytes_left); + return -EINVAL; + } + newdrpev = kzalloc(sizeof(*newdrpev) + ielength, GFP_ATOMIC); + if (newdrpev == NULL) + return -ENOMEM; + newdrpev->rceb = drpev->rceb; + newdrpev->wSrcAddr = drpev->wSrcAddr; + newdrpev->Reason = UWB_DRP_NOTIF_DRP_IE_RCVD; + newdrpev->bBeaconSlotNumber = 0; + newdrpev->wIELength = drpev->wIELength; + memcpy(newdrpev->IEData, drpev->IEData, ielength); + *header = &newdrpev->rceb; + *new_size = sizeof(*newdrpev) + ielength; + return 1; /* calling function will free memory */ +} + + +/* Scan Command (WUSB 1.0 [8.6.2.5]) */ +struct uwb_rc_cmd_scan_WUSB_0100 { + struct uwb_rccb rccb; + u8 bChannelNumber; + u8 bScanState; +} __attribute__((packed)); + +/** + * Filter WHCI 0.95 SCAN command to be WUSB 1.0 SCAN command + * + * @header: command sent to device (compliant to WHCI 0.95) + * @size: size of command sent to device + * + * We only reduce the size by two bytes because the WUSB 1.0 scan command + * does not have the last field (wStarttime). Also, make sure we don't send + * the device an unexpected scan type. + */ +static +int hwarc_filter_cmd_scan_WUSB_0100(struct uwb_rc *rc, + struct uwb_rccb **header, + size_t *size) +{ + struct uwb_rc_cmd_scan *sc; + + sc = container_of(*header, struct uwb_rc_cmd_scan, rccb); + + if (sc->bScanState == UWB_SCAN_ONLY_STARTTIME) + sc->bScanState = UWB_SCAN_ONLY; + /* Don't send the last two bytes. */ + *size -= 2; + return 0; +} + + +/* SET DRP IE command (WUSB 1.0 [8.6.2.7]) */ +struct uwb_rc_cmd_set_drp_ie_WUSB_0100 { + struct uwb_rccb rccb; + u8 bExplicit; + __le16 wIELength; + struct uwb_ie_drp IEData[]; +} __attribute__((packed)); + +/** + * Filter WHCI 0.95 SET DRP IE command to be WUSB 1.0 SET DRP IE command + * + * @header: command sent to device (compliant to WHCI 0.95) + * @size: size of command sent to device + * + * WUSB has an extra bExplicit field - we assume always explicit + * negotiation so this field is set. The command expected by the device is + * thus larger than the one prepared by the driver so we need to + * reallocate memory to accommodate this. + * We trust the driver to send us the correct data so no checking is done + * on incoming data - evn though it is variable length. + */ +static +int hwarc_filter_cmd_set_drp_ie_WUSB_0100(struct uwb_rc *rc, + struct uwb_rccb **header, + size_t *size) +{ + struct uwb_rc_cmd_set_drp_ie *orgcmd; + struct uwb_rc_cmd_set_drp_ie_WUSB_0100 *cmd; + size_t ielength; + + orgcmd = container_of(*header, struct uwb_rc_cmd_set_drp_ie, rccb); + ielength = le16_to_cpu(orgcmd->wIELength); + cmd = kzalloc(sizeof(*cmd) + ielength, GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + cmd->rccb = orgcmd->rccb; + cmd->bExplicit = 0; + cmd->wIELength = orgcmd->wIELength; + memcpy(cmd->IEData, orgcmd->IEData, ielength); + *header = &cmd->rccb; + *size = sizeof(*cmd) + ielength; + return 1; /* calling function will free memory */ +} + + +/** + * Filter data from WHCI driver to WUSB device + * + * @header: WHCI 0.95 compliant command from driver + * @size: length of command + * + * The routine managing commands to the device (uwb_rc_cmd()) will call the + * filtering function pointer (if it exists) before it passes any data to + * the device. At this time the command has been formatted according to + * WHCI 0.95 and is ready to be sent to the device. + * + * The filter function will be provided with the current command and its + * length. The function will manipulate the command if necessary and + * potentially reallocate memory for a command that needed more memory that + * the given command. If new memory was created the function will return 1 + * to indicate to the calling function that the memory need to be freed + * when not needed any more. The size will contain the new length of the + * command. + * If memory has not been allocated we rely on the original mechanisms to + * free the memory of the command - even when we reduce the value of size. + */ +static +int hwarc_filter_cmd_WUSB_0100(struct uwb_rc *rc, struct uwb_rccb **header, + size_t *size) +{ + int result; + struct uwb_rccb *rccb = *header; + int cmd = le16_to_cpu(rccb->wCommand); + switch (cmd) { + case UWB_RC_CMD_SCAN: + result = hwarc_filter_cmd_scan_WUSB_0100(rc, header, size); + break; + case UWB_RC_CMD_SET_DRP_IE: + result = hwarc_filter_cmd_set_drp_ie_WUSB_0100(rc, header, size); + break; + default: + result = -ENOANO; + break; + } + return result; +} + + +/** + * Filter data from WHCI driver to WUSB device + * + * @header: WHCI 0.95 compliant command from driver + * @size: length of command + * + * Filter commands based on which protocol the device supports. The WUSB + * errata should be the same as WHCI 0.95 so we do not filter that here - + * only WUSB 1.0. + */ +static +int hwarc_filter_cmd(struct uwb_rc *rc, struct uwb_rccb **header, + size_t *size) +{ + int result = -ENOANO; + if (rc->version == 0x0100) + result = hwarc_filter_cmd_WUSB_0100(rc, header, size); + return result; +} + + +/** + * Compute return value as sum of incoming value and value at given offset + * + * @rceb: event for which we compute the size, it contains a variable + * length field. + * @core_size: size of the "non variable" part of the event + * @offset: place in event where the length of the variable part is stored + * @buf_size: total length of buffer in which event arrived - we need to make + * sure we read the offset in memory that is still part of the event + */ +static +ssize_t hwarc_get_event_size(struct uwb_rc *rc, const struct uwb_rceb *rceb, + size_t core_size, size_t offset, + const size_t buf_size) +{ + ssize_t size = -ENOSPC; + const void *ptr = rceb; + size_t type_size = sizeof(__le16); + struct device *dev = &rc->uwb_dev.dev; + + if (offset + type_size >= buf_size) { + dev_err(dev, "Not enough data to read extra size of event " + "0x%02x/%04x/%02x, only got %zu bytes.\n", + rceb->bEventType, le16_to_cpu(rceb->wEvent), + rceb->bEventContext, buf_size); + goto out; + } + ptr += offset; + size = core_size + le16_to_cpu(*(__le16 *)ptr); +out: + return size; +} + + +/* Beacon slot change notification (WUSB 1.0 [8.6.3.5]) */ +struct uwb_rc_evt_bp_slot_change_WUSB_0100 { + struct uwb_rceb rceb; + u8 bSlotNumber; +} __attribute__((packed)); + + +/** + * Filter data from WUSB device to WHCI driver + * + * @header: incoming event + * @buf_size: size of buffer in which event arrived + * @_event_size: actual size of event in the buffer + * @new_size: size of event after filtered + * + * We don't know how the buffer is constructed - there may be more than one + * event in it so buffer length does not determine event length. We first + * determine the expected size of the incoming event. This value is passed + * back only if the actual filtering succeeded (so we know the computed + * expected size is correct). This value will be zero if + * the event did not need any filtering. + * + * WHCI interprets the BP Slot Change event's data differently than + * WUSB. The event sizes are exactly the same. The data field + * indicates the new beacon slot in which a RC is transmitting its + * beacon. The maximum value of this is 96 (wMacBPLength ECMA-368 + * 17.16 (Table 117)). We thus know that the WUSB value will not set + * the bit bNoSlot, so we don't really do anything (placeholder). + */ +static +int hwarc_filter_event_WUSB_0100(struct uwb_rc *rc, struct uwb_rceb **header, + const size_t buf_size, size_t *_real_size, + size_t *_new_size) +{ + int result = -ENOANO; + struct uwb_rceb *rceb = *header; + int event = le16_to_cpu(rceb->wEvent); + size_t event_size; + size_t core_size, offset; + + if (rceb->bEventType != UWB_RC_CET_GENERAL) + goto out; + switch (event) { + case UWB_RC_EVT_BEACON: + core_size = sizeof(struct uwb_rc_evt_beacon_WUSB_0100); + offset = offsetof(struct uwb_rc_evt_beacon_WUSB_0100, + wBeaconInfoLength); + event_size = hwarc_get_event_size(rc, rceb, core_size, + offset, buf_size); + if (event_size < 0) + goto out; + *_real_size = event_size; + result = hwarc_filter_evt_beacon_WUSB_0100(rc, header, + buf_size, _new_size); + break; + case UWB_RC_EVT_BP_SLOT_CHANGE: + *_new_size = *_real_size = + sizeof(struct uwb_rc_evt_bp_slot_change_WUSB_0100); + result = 0; + break; + + case UWB_RC_EVT_DRP_AVAIL: + core_size = sizeof(struct uwb_rc_evt_drp_avail_WUSB_0100); + offset = offsetof(struct uwb_rc_evt_drp_avail_WUSB_0100, + wIELength); + event_size = hwarc_get_event_size(rc, rceb, core_size, + offset, buf_size); + if (event_size < 0) + goto out; + *_real_size = event_size; + result = hwarc_filter_evt_drp_avail_WUSB_0100( + rc, header, buf_size, _new_size); + break; + + case UWB_RC_EVT_DRP: + core_size = sizeof(struct uwb_rc_evt_drp_WUSB_0100); + offset = offsetof(struct uwb_rc_evt_drp_WUSB_0100, wIELength); + event_size = hwarc_get_event_size(rc, rceb, core_size, + offset, buf_size); + if (event_size < 0) + goto out; + *_real_size = event_size; + result = hwarc_filter_evt_drp_WUSB_0100(rc, header, + buf_size, _new_size); + break; + + default: + break; + } +out: + return result; +} + +/** + * Filter data from WUSB device to WHCI driver + * + * @header: incoming event + * @buf_size: size of buffer in which event arrived + * @_event_size: actual size of event in the buffer + * @_new_size: size of event after filtered + * + * Filter events based on which protocol the device supports. The WUSB + * errata should be the same as WHCI 0.95 so we do not filter that here - + * only WUSB 1.0. + * + * If we don't handle it, we return -ENOANO (why the weird error code? + * well, so if I get it, I can pinpoint in the code that raised + * it...after all, not too many places use the higher error codes). + */ +static +int hwarc_filter_event(struct uwb_rc *rc, struct uwb_rceb **header, + const size_t buf_size, size_t *_real_size, + size_t *_new_size) +{ + int result = -ENOANO; + if (rc->version == 0x0100) + result = hwarc_filter_event_WUSB_0100( + rc, header, buf_size, _real_size, _new_size); + return result; +} + + +/** + * Execute an UWB RC command on HWA + * + * @rc: Instance of a Radio Controller that is a HWA + * @cmd: Buffer containing the RCCB and payload to execute + * @cmd_size: Size of the command buffer. + * + * NOTE: rc's mutex has to be locked + */ +static +int hwarc_cmd(struct uwb_rc *uwb_rc, const struct uwb_rccb *cmd, size_t cmd_size) +{ + struct hwarc *hwarc = uwb_rc->priv; + return usb_control_msg( + hwarc->usb_dev, usb_sndctrlpipe(hwarc->usb_dev, 0), + WA_EXEC_RC_CMD, USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, hwarc->usb_iface->cur_altsetting->desc.bInterfaceNumber, + (void *) cmd, cmd_size, 100 /* FIXME: this is totally arbitrary */); +} + +/** + * Callback for the notification and event endpoint + * + * Check's that everything is fine and then passes the read data to + * the notification/event handling mechanism (neh). + */ +static +void hwarc_neep_cb(struct urb *urb) +{ + struct hwarc *hwarc = urb->context; + struct usb_interface *usb_iface = hwarc->usb_iface; + struct device *dev = &usb_iface->dev; + int result; + + switch (result = urb->status) { + case 0: + d_printf(3, dev, "NEEP: receive stat %d, %zu bytes\n", + urb->status, (size_t)urb->actual_length); + uwb_rc_neh_grok(hwarc->uwb_rc, urb->transfer_buffer, + urb->actual_length); + break; + case -ECONNRESET: /* Not an error, but a controlled situation; */ + case -ENOENT: /* (we killed the URB)...so, no broadcast */ + d_printf(2, dev, "NEEP: URB reset/noent %d\n", urb->status); + goto out; + case -ESHUTDOWN: /* going away! */ + d_printf(2, dev, "NEEP: URB down %d\n", urb->status); + goto out; + default: /* On general errors, retry unless it gets ugly */ + if (edc_inc(&hwarc->neep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)) + goto error_exceeded; + dev_err(dev, "NEEP: URB error %d\n", urb->status); + } + result = usb_submit_urb(urb, GFP_ATOMIC); + d_printf(3, dev, "NEEP: submit %d\n", result); + if (result < 0) { + dev_err(dev, "NEEP: Can't resubmit URB (%d) resetting device\n", + result); + goto error; + } +out: + return; + +error_exceeded: + dev_err(dev, "NEEP: URB max acceptable errors " + "exceeded, resetting device\n"); +error: + usb_dev_reset_delayed(hwarc->usb_dev); + uwb_rc_neh_error(hwarc->uwb_rc, result); + return; +} + +static void hwarc_init(struct hwarc *hwarc) +{ + edc_init(&hwarc->neep_edc); +} + +/** + * Initialize the notification/event endpoint stuff + * + * Note this is effectively a parallel thread; it knows that + * hwarc->uwb_rc always exists because the existence of a 'hwarc' + * means that there is a reverence on the hwarc->uwb_rc (see + * _probe()), and thus _neep_cb() can execute safely. + */ +static int hwarc_neep_init(struct hwarc *hwarc, struct usb_interface *iface) +{ + int result; + struct usb_endpoint_descriptor *epd; + struct usb_device *usb_dev = interface_to_usbdev(iface); + struct device *dev = &iface->dev; + + epd = &iface->cur_altsetting->endpoint[0].desc; + hwarc->rd_buffer = (void *) __get_free_page(GFP_KERNEL); + if (hwarc->rd_buffer == NULL) { + dev_err(dev, "Unable to allocate notification's read buffer\n"); + goto error_rd_buffer; + } + hwarc->neep_urb = usb_alloc_urb(0, GFP_KERNEL); + if (hwarc->neep_urb == NULL) { + dev_err(dev, "Unable to allocate notification URB\n"); + goto error_urb_alloc; + } + usb_fill_int_urb(hwarc->neep_urb, usb_dev, + usb_rcvintpipe(usb_dev, epd->bEndpointAddress), + hwarc->rd_buffer, PAGE_SIZE, + hwarc_neep_cb, hwarc, epd->bInterval); + result = usb_submit_urb(hwarc->neep_urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "Cannot submit notification URB: %d\n", result); + goto error_neep_submit; + } + return 0; + +error_neep_submit: + usb_free_urb(hwarc->neep_urb); +error_urb_alloc: + free_page((unsigned long)hwarc->rd_buffer); +error_rd_buffer: + return -ENOMEM; +} + + +/** Clean up all the notification endpoint resources */ +static void hwarc_neep_release(struct hwarc *hwarc) +{ + usb_kill_urb(hwarc->neep_urb); + usb_free_urb(hwarc->neep_urb); + free_page((unsigned long)hwarc->rd_buffer); +} + +/** + * Get the version from class-specific descriptor + * + * NOTE: this descriptor comes with the big bundled configuration + * descriptor that includes the interfaces' and endpoints', so + * we just look for it in the cached copy kept by the USB stack. + * + * NOTE2: We convert LE fields to CPU order. + */ +static int hwarc_get_version(struct uwb_rc *rc) +{ + int result; + + struct hwarc *hwarc = rc->priv; + struct uwb_rc_control_intf_class_desc *descr; + struct device *dev = &rc->uwb_dev.dev; + struct usb_device *usb_dev = hwarc->usb_dev; + char *itr; + struct usb_descriptor_header *hdr; + size_t itr_size, actconfig_idx; + u16 version; + + actconfig_idx = (usb_dev->actconfig - usb_dev->config) / + sizeof(usb_dev->config[0]); + itr = usb_dev->rawdescriptors[actconfig_idx]; + itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength); + while (itr_size >= sizeof(*hdr)) { + hdr = (struct usb_descriptor_header *) itr; + d_printf(3, dev, "Extra device descriptor: " + "type %02x/%u bytes @ %zu (%zu left)\n", + hdr->bDescriptorType, hdr->bLength, + (itr - usb_dev->rawdescriptors[actconfig_idx]), + itr_size); + if (hdr->bDescriptorType == USB_DT_CS_RADIO_CONTROL) + goto found; + itr += hdr->bLength; + itr_size -= hdr->bLength; + } + dev_err(dev, "cannot find Radio Control Interface Class descriptor\n"); + return -ENODEV; + +found: + result = -EINVAL; + if (hdr->bLength > itr_size) { /* is it available? */ + dev_err(dev, "incomplete Radio Control Interface Class " + "descriptor (%zu bytes left, %u needed)\n", + itr_size, hdr->bLength); + goto error; + } + if (hdr->bLength < sizeof(*descr)) { + dev_err(dev, "short Radio Control Interface Class " + "descriptor\n"); + goto error; + } + descr = (struct uwb_rc_control_intf_class_desc *) hdr; + /* Make LE fields CPU order */ + version = __le16_to_cpu(descr->bcdRCIVersion); + if (version != 0x0100) { + dev_err(dev, "Device reports protocol version 0x%04x. We " + "do not support that. \n", version); + result = -EINVAL; + goto error; + } + rc->version = version; + d_printf(3, dev, "Device supports WUSB protocol version 0x%04x \n", + rc->version); + result = 0; +error: + return result; +} + +/* + * By creating a 'uwb_rc', we have a reference on it -- that reference + * is the one we drop when we disconnect. + * + * No need to switch altsettings; according to WUSB1.0[8.6.1.1], there + * is only one altsetting allowed. + */ +static int hwarc_probe(struct usb_interface *iface, + const struct usb_device_id *id) +{ + int result; + struct uwb_rc *uwb_rc; + struct hwarc *hwarc; + struct device *dev = &iface->dev; + + result = -ENOMEM; + uwb_rc = uwb_rc_alloc(); + if (uwb_rc == NULL) { + dev_err(dev, "unable to allocate RC instance\n"); + goto error_rc_alloc; + } + hwarc = kzalloc(sizeof(*hwarc), GFP_KERNEL); + if (hwarc == NULL) { + dev_err(dev, "unable to allocate HWA RC instance\n"); + goto error_alloc; + } + hwarc_init(hwarc); + hwarc->usb_dev = usb_get_dev(interface_to_usbdev(iface)); + hwarc->usb_iface = usb_get_intf(iface); + result = hwarc_neep_init(hwarc, iface); + if (result < 0) { + dev_err(dev, "Cannot initialize notif/event endpoint: %d\n", + result); + goto error_neep_init; + } + hwarc->uwb_rc = uwb_rc; + if (id->driver_info & WUSB_QUIRK_WHCI_CMD_EVT) + result = uwb_rc_add(uwb_rc, dev, hwarc, hwarc_cmd, + NULL, NULL); + else + result = uwb_rc_add(uwb_rc, dev, hwarc, hwarc_cmd, + hwarc_filter_cmd, hwarc_filter_event); + if (result < 0) + goto error_rc_add; + result = hwarc_get_version(uwb_rc); + if (result < 0) { + dev_err(dev, "cannot retrieve version of RC \n"); + goto error_get_version; + } + usb_set_intfdata(iface, hwarc); + return 0; + + uwb_rc_rm(uwb_rc); +error_rc_add: +error_get_version: + hwarc_neep_release(hwarc); +error_neep_init: + usb_put_intf(iface); + usb_put_dev(hwarc->usb_dev); +error_alloc: + uwb_rc_put(uwb_rc); +error_rc_alloc: + return result; +} + +static void hwarc_disconnect(struct usb_interface *iface) +{ + struct hwarc *hwarc = usb_get_intfdata(iface); + struct uwb_rc *uwb_rc = hwarc->uwb_rc; + + usb_set_intfdata(hwarc->usb_iface, NULL); + uwb_rc_rm(uwb_rc); + hwarc_neep_release(hwarc); + usb_put_intf(hwarc->usb_iface); + usb_put_dev(hwarc->usb_dev); + d_printf(1, &hwarc->usb_iface->dev, "freed hwarc %p\n", hwarc); + kfree(hwarc); + uwb_rc_put(uwb_rc); /* when creating the device, refcount = 1 */ +} + +/** USB device ID's that we handle */ +static struct usb_device_id hwarc_id_table[] = { + /* D-Link DUB-1210 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3d02, 0xe0, 0x01, 0x02), + .driver_info = WUSB_QUIRK_WHCI_CMD_EVT }, + /* Intel i1480 (using firmware 1.3PA2-20070828) */ + { USB_DEVICE_AND_INTERFACE_INFO(0x8086, 0x0c3b, 0xe0, 0x01, 0x02), + .driver_info = WUSB_QUIRK_WHCI_CMD_EVT }, + /* Generic match for the Radio Control interface */ + { USB_INTERFACE_INFO(0xe0, 0x01, 0x02), }, + { }, +}; +MODULE_DEVICE_TABLE(usb, hwarc_id_table); + +static struct usb_driver hwarc_driver = { + .name = "hwa-rc", + .probe = hwarc_probe, + .disconnect = hwarc_disconnect, + .id_table = hwarc_id_table, +}; + +static int __init hwarc_driver_init(void) +{ + int result; + result = usb_register(&hwarc_driver); + if (result < 0) + printk(KERN_ERR "HWA-RC: Cannot register USB driver: %d\n", + result); + return result; + +} +module_init(hwarc_driver_init); + +static void __exit hwarc_driver_exit(void) +{ + usb_deregister(&hwarc_driver); +} +module_exit(hwarc_driver_exit); + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Host Wireless Adapter Radio Control Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/uwb/i1480/Makefile b/drivers/uwb/i1480/Makefile new file mode 100644 index 000000000000..212bbc7d4c32 --- /dev/null +++ b/drivers/uwb/i1480/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_UWB_I1480U) += dfu/ i1480-est.o +obj-$(CONFIG_UWB_I1480U_WLP) += i1480u-wlp/ diff --git a/drivers/uwb/i1480/dfu/Makefile b/drivers/uwb/i1480/dfu/Makefile new file mode 100644 index 000000000000..bd1b9f25424c --- /dev/null +++ b/drivers/uwb/i1480/dfu/Makefile @@ -0,0 +1,9 @@ +obj-$(CONFIG_UWB_I1480U) += i1480-dfu-usb.o + +i1480-dfu-usb-objs := \ + dfu.o \ + mac.o \ + phy.o \ + usb.o + + diff --git a/drivers/uwb/i1480/dfu/dfu.c b/drivers/uwb/i1480/dfu/dfu.c new file mode 100644 index 000000000000..ebffaf542153 --- /dev/null +++ b/drivers/uwb/i1480/dfu/dfu.c @@ -0,0 +1,281 @@ +/* + * Intel Wireless UWB Link 1480 + * Main driver + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Common code for firmware upload used by the USB and PCI version; + * i1480_fw_upload() takes a device descriptor and uses the function + * pointers it provides to upload firmware and prepare the PHY. + * + * As well, provides common functions used by the rest of the code. + */ +#include "i1480-dfu.h" +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/pci.h> +#include <linux/device.h> +#include <linux/uwb.h> +#include <linux/random.h> + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +/** @return 0 if If @evt is a valid reply event; otherwise complain */ +int i1480_rceb_check(const struct i1480 *i1480, const struct uwb_rceb *rceb, + const char *cmd, u8 context, + unsigned expected_type, unsigned expected_event) +{ + int result = 0; + struct device *dev = i1480->dev; + if (rceb->bEventContext != context) { + dev_err(dev, "%s: " + "unexpected context id 0x%02x (expected 0x%02x)\n", + cmd, rceb->bEventContext, context); + result = -EINVAL; + } + if (rceb->bEventType != expected_type) { + dev_err(dev, "%s: " + "unexpected event type 0x%02x (expected 0x%02x)\n", + cmd, rceb->bEventType, expected_type); + result = -EINVAL; + } + if (le16_to_cpu(rceb->wEvent) != expected_event) { + dev_err(dev, "%s: " + "unexpected event 0x%04x (expected 0x%04x)\n", + cmd, le16_to_cpu(rceb->wEvent), expected_event); + result = -EINVAL; + } + return result; +} +EXPORT_SYMBOL_GPL(i1480_rceb_check); + + +/** + * Execute a Radio Control Command + * + * Command data has to be in i1480->cmd_buf. + * + * @returns size of the reply data filled in i1480->evt_buf or < 0 errno + * code on error. + */ +ssize_t i1480_cmd(struct i1480 *i1480, const char *cmd_name, size_t cmd_size, + size_t reply_size) +{ + ssize_t result; + struct uwb_rceb *reply = i1480->evt_buf; + struct uwb_rccb *cmd = i1480->cmd_buf; + u16 expected_event = reply->wEvent; + u8 expected_type = reply->bEventType; + u8 context; + + d_fnstart(3, i1480->dev, "(%p, %s, %zu)\n", i1480, cmd_name, cmd_size); + init_completion(&i1480->evt_complete); + i1480->evt_result = -EINPROGRESS; + do { + get_random_bytes(&context, 1); + } while (context == 0x00 || context == 0xff); + cmd->bCommandContext = context; + result = i1480->cmd(i1480, cmd_name, cmd_size); + if (result < 0) + goto error; + /* wait for the callback to report a event was received */ + result = wait_for_completion_interruptible_timeout( + &i1480->evt_complete, HZ); + if (result == 0) { + result = -ETIMEDOUT; + goto error; + } + if (result < 0) + goto error; + result = i1480->evt_result; + if (result < 0) { + dev_err(i1480->dev, "%s: command reply reception failed: %zd\n", + cmd_name, result); + goto error; + } + if (result != reply_size) { + dev_err(i1480->dev, "%s returned only %zu bytes, %zu expected\n", + cmd_name, result, reply_size); + result = -EINVAL; + goto error; + } + /* Verify we got the right event in response */ + result = i1480_rceb_check(i1480, i1480->evt_buf, cmd_name, context, + expected_type, expected_event); +error: + d_fnend(3, i1480->dev, "(%p, %s, %zu) = %zd\n", + i1480, cmd_name, cmd_size, result); + return result; +} +EXPORT_SYMBOL_GPL(i1480_cmd); + + +/** + * Get information about the MAC and PHY + * + * @wa: Wired adaptor + * @neh: Notification/event handler + * @reply: Pointer to the reply event buffer + * @returns: 0 if ok, < 0 errno code on error. + */ +static +int i1480_cmd_get_mac_phy_info(struct i1480 *i1480) +{ + int result; + struct uwb_rccb *cmd = i1480->cmd_buf; + struct i1480_evt_confirm_GMPI *reply = i1480->evt_buf; + + cmd->bCommandType = i1480_CET_VS1; + cmd->wCommand = cpu_to_le16(i1480_CMD_GET_MAC_PHY_INFO); + reply->rceb.bEventType = i1480_CET_VS1; + reply->rceb.wEvent = i1480_EVT_GET_MAC_PHY_INFO; + result = i1480_cmd(i1480, "GET_MAC_PHY_INFO", sizeof(*cmd), + sizeof(*reply)); + if (result < 0) + goto out; + if (le16_to_cpu(reply->status) != 0x00) { + dev_err(i1480->dev, + "GET_MAC_PHY_INFO: command execution failed: %d\n", + reply->status); + result = -EIO; + } +out: + return result; +} + + +/** + * Get i1480's info and print it + * + * @wa: Wire Adapter + * @neh: Notification/event handler + * @returns: 0 if ok, < 0 errno code on error. + */ +static +int i1480_check_info(struct i1480 *i1480) +{ + struct i1480_evt_confirm_GMPI *reply = i1480->evt_buf; + int result; + unsigned mac_fw_rev; +#if i1480_FW <= 0x00000302 + unsigned phy_fw_rev; +#endif + if (i1480->quirk_no_check_info) { + dev_err(i1480->dev, "firmware info check disabled\n"); + return 0; + } + + result = i1480_cmd_get_mac_phy_info(i1480); + if (result < 0) { + dev_err(i1480->dev, "Cannot get MAC & PHY information: %d\n", + result); + goto out; + } + mac_fw_rev = le16_to_cpu(reply->mac_fw_rev); +#if i1480_FW > 0x00000302 + dev_info(i1480->dev, + "HW v%02hx " + "MAC FW v%02hx.%02hx caps %04hx " + "PHY type %02hx v%02hx caps %02hx %02hx %02hx\n", + reply->hw_rev, mac_fw_rev >> 8, mac_fw_rev & 0xff, + le16_to_cpu(reply->mac_caps), + reply->phy_vendor, reply->phy_rev, + reply->phy_caps[0], reply->phy_caps[1], reply->phy_caps[2]); +#else + phy_fw_rev = le16_to_cpu(reply->phy_fw_rev); + dev_info(i1480->dev, "MAC FW v%02hx.%02hx caps %04hx " + " PHY FW v%02hx.%02hx caps %04hx\n", + mac_fw_rev >> 8, mac_fw_rev & 0xff, + le16_to_cpu(reply->mac_caps), + phy_fw_rev >> 8, phy_fw_rev & 0xff, + le16_to_cpu(reply->phy_caps)); +#endif + dev_dbg(i1480->dev, + "key-stores:%hu mcast-addr-stores:%hu sec-modes:%hu\n", + (unsigned short) reply->key_stores, + le16_to_cpu(reply->mcast_addr_stores), + (unsigned short) reply->sec_mode_supported); + /* FIXME: complain if fw version too low -- pending for + * numbering to stabilize */ +out: + return result; +} + + +static +int i1480_print_state(struct i1480 *i1480) +{ + int result; + u32 *buf = (u32 *) i1480->cmd_buf; + + result = i1480->read(i1480, 0x80080000, 2 * sizeof(*buf)); + if (result < 0) { + dev_err(i1480->dev, "cannot read U & L states: %d\n", result); + goto error; + } + dev_info(i1480->dev, "state U 0x%08x, L 0x%08x\n", buf[0], buf[1]); +error: + return result; +} + + +/* + * PCI probe, firmware uploader + * + * _mac_fw_upload() will call rc_setup(), which needs an rc_release(). + */ +int i1480_fw_upload(struct i1480 *i1480) +{ + int result; + + result = i1480_pre_fw_upload(i1480); /* PHY pre fw */ + if (result < 0 && result != -ENOENT) { + i1480_print_state(i1480); + goto error; + } + result = i1480_mac_fw_upload(i1480); /* MAC fw */ + if (result < 0) { + if (result == -ENOENT) + dev_err(i1480->dev, "Cannot locate MAC FW file '%s'\n", + i1480->mac_fw_name); + else + i1480_print_state(i1480); + goto error; + } + result = i1480_phy_fw_upload(i1480); /* PHY fw */ + if (result < 0 && result != -ENOENT) { + i1480_print_state(i1480); + goto error_rc_release; + } + result = i1480_check_info(i1480); + if (result < 0) { + dev_warn(i1480->dev, "Warning! Cannot check firmware info: %d\n", + result); + result = 0; + } + dev_info(i1480->dev, "firmware uploaded successfully\n"); +error_rc_release: + if (i1480->rc_release) + i1480->rc_release(i1480); + result = 0; +error: + return result; +} +EXPORT_SYMBOL_GPL(i1480_fw_upload); diff --git a/drivers/uwb/i1480/dfu/i1480-dfu.h b/drivers/uwb/i1480/dfu/i1480-dfu.h new file mode 100644 index 000000000000..4103b287ac71 --- /dev/null +++ b/drivers/uwb/i1480/dfu/i1480-dfu.h @@ -0,0 +1,263 @@ +/* + * i1480 Device Firmware Upload + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This driver is the firmware uploader for the Intel Wireless UWB + * Link 1480 device (both in the USB and PCI incarnations). + * + * The process is quite simple: we stop the device, write the firmware + * to its memory and then restart it. Wait for the device to let us + * know it is done booting firmware. Ready. + * + * We might have to upload before or after a phy firmware (which might + * be done in two methods, using a normal firmware image or through + * the MPI port). + * + * Because USB and PCI use common methods, we just make ops out of the + * common operations (read, write, wait_init_done and cmd) and + * implement them in usb.c and pci.c. + * + * The flow is (some parts omitted): + * + * i1480_{usb,pci}_probe() On enumerate/discovery + * i1480_fw_upload() + * i1480_pre_fw_upload() + * __mac_fw_upload() + * fw_hdrs_load() + * mac_fw_hdrs_push() + * i1480->write() [i1480_{usb,pci}_write()] + * i1480_fw_cmp() + * i1480->read() [i1480_{usb,pci}_read()] + * i1480_mac_fw_upload() + * __mac_fw_upload() + * i1480->setup(() + * i1480->wait_init_done() + * i1480_cmd_reset() + * i1480->cmd() [i1480_{usb,pci}_cmd()] + * ... + * i1480_phy_fw_upload() + * request_firmware() + * i1480_mpi_write() + * i1480->cmd() [i1480_{usb,pci}_cmd()] + * i1480_check_info() + * + * Once the probe function enumerates the device and uploads the + * firmware, we just exit with -ENODEV, as we don't really want to + * attach to the device. + */ +#ifndef __i1480_DFU_H__ +#define __i1480_DFU_H__ + +#include <linux/uwb/spec.h> +#include <linux/types.h> +#include <linux/completion.h> + +#define i1480_FW_UPLOAD_MODE_MASK (cpu_to_le32(0x00000018)) + +#if i1480_FW > 0x00000302 +#define i1480_RCEB_EXTENDED +#endif + +struct uwb_rccb; +struct uwb_rceb; + +/* + * Common firmware upload handlers + * + * Normally you embed this struct in another one specific to your hw. + * + * @write Write to device's memory from buffer. + * @read Read from device's memory to i1480->evt_buf. + * @setup Setup device after basic firmware is uploaded + * @wait_init_done + * Wait for the device to send a notification saying init + * is done. + * @cmd FOP for issuing the command to the hardware. The + * command data is contained in i1480->cmd_buf and the size + * is supplied as an argument. The command replied is put + * in i1480->evt_buf and the size in i1480->evt_result (or if + * an error, a < 0 errno code). + * + * @cmd_buf Memory buffer used to send commands to the device. + * Allocated by the upper layers i1480_fw_upload(). + * Size has to be @buf_size. + * @evt_buf Memory buffer used to place the async notifications + * received by the hw. Allocated by the upper layers + * i1480_fw_upload(). + * Size has to be @buf_size. + * @cmd_complete + * Low level driver uses this to notify code waiting afor + * an event that the event has arrived and data is in + * i1480->evt_buf (and size/result in i1480->evt_result). + * @hw_rev + * Use this value to activate dfu code to support new revisions + * of hardware. i1480_init() sets this to a default value. + * It should be updated by the USB and PCI code. + */ +struct i1480 { + struct device *dev; + + int (*write)(struct i1480 *, u32 addr, const void *, size_t); + int (*read)(struct i1480 *, u32 addr, size_t); + int (*rc_setup)(struct i1480 *); + void (*rc_release)(struct i1480 *); + int (*wait_init_done)(struct i1480 *); + int (*cmd)(struct i1480 *, const char *cmd_name, size_t cmd_size); + const char *pre_fw_name; + const char *mac_fw_name; + const char *mac_fw_name_deprecate; /* FIXME: Will go away */ + const char *phy_fw_name; + u8 hw_rev; + + size_t buf_size; /* size of both evt_buf and cmd_buf */ + void *evt_buf, *cmd_buf; + ssize_t evt_result; + struct completion evt_complete; + + u8 quirk_no_check_info:1; +}; + +static inline +void i1480_init(struct i1480 *i1480) +{ + i1480->hw_rev = 1; + init_completion(&i1480->evt_complete); +} + +extern int i1480_fw_upload(struct i1480 *); +extern int i1480_pre_fw_upload(struct i1480 *); +extern int i1480_mac_fw_upload(struct i1480 *); +extern int i1480_phy_fw_upload(struct i1480 *); +extern ssize_t i1480_cmd(struct i1480 *, const char *, size_t, size_t); +extern int i1480_rceb_check(const struct i1480 *, + const struct uwb_rceb *, const char *, u8, + unsigned, unsigned); + +enum { + /* Vendor specific command type */ + i1480_CET_VS1 = 0xfd, + /* i1480 commands */ + i1480_CMD_SET_IP_MAS = 0x000e, + i1480_CMD_GET_MAC_PHY_INFO = 0x0003, + i1480_CMD_MPI_WRITE = 0x000f, + i1480_CMD_MPI_READ = 0x0010, + /* i1480 events */ +#if i1480_FW > 0x00000302 + i1480_EVT_CONFIRM = 0x0002, + i1480_EVT_RM_INIT_DONE = 0x0101, + i1480_EVT_DEV_ADD = 0x0103, + i1480_EVT_DEV_RM = 0x0104, + i1480_EVT_DEV_ID_CHANGE = 0x0105, + i1480_EVT_GET_MAC_PHY_INFO = i1480_CMD_GET_MAC_PHY_INFO, +#else + i1480_EVT_CONFIRM = 0x0002, + i1480_EVT_RM_INIT_DONE = 0x0101, + i1480_EVT_DEV_ADD = 0x0103, + i1480_EVT_DEV_RM = 0x0104, + i1480_EVT_DEV_ID_CHANGE = 0x0105, + i1480_EVT_GET_MAC_PHY_INFO = i1480_EVT_CONFIRM, +#endif +}; + + +struct i1480_evt_confirm { + struct uwb_rceb rceb; +#ifdef i1480_RCEB_EXTENDED + __le16 wParamLength; +#endif + u8 bResultCode; +} __attribute__((packed)); + + +struct i1480_rceb { + struct uwb_rceb rceb; +#ifdef i1480_RCEB_EXTENDED + __le16 wParamLength; +#endif +} __attribute__((packed)); + + +/** + * Get MAC & PHY Information confirm event structure + * + * Confirm event returned by the command. + */ +struct i1480_evt_confirm_GMPI { +#if i1480_FW > 0x00000302 + struct uwb_rceb rceb; + __le16 wParamLength; + __le16 status; + u8 mac_addr[6]; /* EUI-64 bit IEEE address [still 8 bytes?] */ + u8 dev_addr[2]; + __le16 mac_fw_rev; /* major = v >> 8; minor = v & 0xff */ + u8 hw_rev; + u8 phy_vendor; + u8 phy_rev; /* major v = >> 8; minor = v & 0xff */ + __le16 mac_caps; + u8 phy_caps[3]; + u8 key_stores; + __le16 mcast_addr_stores; + u8 sec_mode_supported; +#else + struct uwb_rceb rceb; + u8 status; + u8 mac_addr[8]; /* EUI-64 bit IEEE address [still 8 bytes?] */ + u8 dev_addr[2]; + __le16 mac_fw_rev; /* major = v >> 8; minor = v & 0xff */ + __le16 phy_fw_rev; /* major v = >> 8; minor = v & 0xff */ + __le16 mac_caps; + u8 phy_caps; + u8 key_stores; + __le16 mcast_addr_stores; + u8 sec_mode_supported; +#endif +} __attribute__((packed)); + + +struct i1480_cmd_mpi_write { + struct uwb_rccb rccb; + __le16 size; + u8 data[]; +}; + + +struct i1480_cmd_mpi_read { + struct uwb_rccb rccb; + __le16 size; + struct { + u8 page, offset; + } __attribute__((packed)) data[]; +} __attribute__((packed)); + + +struct i1480_evt_mpi_read { + struct uwb_rceb rceb; +#ifdef i1480_RCEB_EXTENDED + __le16 wParamLength; +#endif + u8 bResultCode; + __le16 size; + struct { + u8 page, offset, value; + } __attribute__((packed)) data[]; +} __attribute__((packed)); + + +#endif /* #ifndef __i1480_DFU_H__ */ diff --git a/drivers/uwb/i1480/dfu/mac.c b/drivers/uwb/i1480/dfu/mac.c new file mode 100644 index 000000000000..22f22279413a --- /dev/null +++ b/drivers/uwb/i1480/dfu/mac.c @@ -0,0 +1,529 @@ +/* + * Intel Wireless UWB Link 1480 + * MAC Firmware upload implementation + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Implementation of the code for parsing the firmware file (extract + * the headers and binary code chunks) in the fw_*() functions. The + * code to upload pre and mac firmwares is the same, so it uses a + * common entry point in __mac_fw_upload(), which uses the i1480 + * function pointers to push the firmware to the device. + */ +#include <linux/delay.h> +#include <linux/firmware.h> +#include <linux/uwb.h> +#include "i1480-dfu.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +/* + * Descriptor for a continuous segment of MAC fw data + */ +struct fw_hdr { + unsigned long address; + size_t length; + const u32 *bin; + struct fw_hdr *next; +}; + + +/* Free a chain of firmware headers */ +static +void fw_hdrs_free(struct fw_hdr *hdr) +{ + struct fw_hdr *next; + + while (hdr) { + next = hdr->next; + kfree(hdr); + hdr = next; + } +} + + +/* Fill a firmware header descriptor from a memory buffer */ +static +int fw_hdr_load(struct i1480 *i1480, struct fw_hdr *hdr, unsigned hdr_cnt, + const char *_data, const u32 *data_itr, const u32 *data_top) +{ + size_t hdr_offset = (const char *) data_itr - _data; + size_t remaining_size = (void *) data_top - (void *) data_itr; + if (data_itr + 2 > data_top) { + dev_err(i1480->dev, "fw hdr #%u/%zu: EOF reached in header at " + "offset %zu, limit %zu\n", + hdr_cnt, hdr_offset, + (const char *) data_itr + 2 - _data, + (const char *) data_top - _data); + return -EINVAL; + } + hdr->next = NULL; + hdr->address = le32_to_cpu(*data_itr++); + hdr->length = le32_to_cpu(*data_itr++); + hdr->bin = data_itr; + if (hdr->length > remaining_size) { + dev_err(i1480->dev, "fw hdr #%u/%zu: EOF reached in data; " + "chunk too long (%zu bytes), only %zu left\n", + hdr_cnt, hdr_offset, hdr->length, remaining_size); + return -EINVAL; + } + return 0; +} + + +/** + * Get a buffer where the firmware is supposed to be and create a + * chain of headers linking them together. + * + * @phdr: where to place the pointer to the first header (headers link + * to the next via the @hdr->next ptr); need to free the whole + * chain when done. + * + * @_data: Pointer to the data buffer. + * + * @_data_size: Size of the data buffer (bytes); data size has to be a + * multiple of 4. Function will fail if not. + * + * Goes over the whole binary blob; reads the first chunk and creates + * a fw hdr from it (which points to where the data is in @_data and + * the length of the chunk); then goes on to the next chunk until + * done. Each header is linked to the next. + */ +static +int fw_hdrs_load(struct i1480 *i1480, struct fw_hdr **phdr, + const char *_data, size_t data_size) +{ + int result; + unsigned hdr_cnt = 0; + u32 *data = (u32 *) _data, *data_itr, *data_top; + struct fw_hdr *hdr, **prev_hdr = phdr; + + result = -EINVAL; + /* Check size is ok and pointer is aligned */ + if (data_size % sizeof(u32) != 0) + goto error; + if ((unsigned long) _data % sizeof(u16) != 0) + goto error; + *phdr = NULL; + data_itr = data; + data_top = (u32 *) (_data + data_size); + while (data_itr < data_top) { + result = -ENOMEM; + hdr = kmalloc(sizeof(*hdr), GFP_KERNEL); + if (hdr == NULL) { + dev_err(i1480->dev, "Cannot allocate fw header " + "for chunk #%u\n", hdr_cnt); + goto error_alloc; + } + result = fw_hdr_load(i1480, hdr, hdr_cnt, + _data, data_itr, data_top); + if (result < 0) + goto error_load; + data_itr += 2 + hdr->length; + *prev_hdr = hdr; + prev_hdr = &hdr->next; + hdr_cnt++; + }; + *prev_hdr = NULL; + return 0; + +error_load: + kfree(hdr); +error_alloc: + fw_hdrs_free(*phdr); +error: + return result; +} + + +/** + * Compares a chunk of fw with one in the devices's memory + * + * @i1480: Device instance + * @hdr: Pointer to the firmware chunk + * @returns: 0 if equal, < 0 errno on error. If > 0, it is the offset + * where the difference was found (plus one). + * + * Kind of dirty and simplistic, but does the trick in both the PCI + * and USB version. We do a quick[er] memcmp(), and if it fails, we do + * a byte-by-byte to find the offset. + */ +static +ssize_t i1480_fw_cmp(struct i1480 *i1480, struct fw_hdr *hdr) +{ + ssize_t result = 0; + u32 src_itr = 0, cnt; + size_t size = hdr->length*sizeof(hdr->bin[0]); + size_t chunk_size; + u8 *bin = (u8 *) hdr->bin; + + while (size > 0) { + chunk_size = size < i1480->buf_size? size : i1480->buf_size; + result = i1480->read(i1480, hdr->address + src_itr, chunk_size); + if (result < 0) { + dev_err(i1480->dev, "error reading for verification: " + "%zd\n", result); + goto error; + } + if (memcmp(i1480->cmd_buf, bin + src_itr, result)) { + u8 *buf = i1480->cmd_buf; + d_printf(2, i1480->dev, + "original data @ %p + %u, %zu bytes\n", + bin, src_itr, result); + d_dump(4, i1480->dev, bin + src_itr, result); + for (cnt = 0; cnt < result; cnt++) + if (bin[src_itr + cnt] != buf[cnt]) { + dev_err(i1480->dev, "byte failed at " + "src_itr %u cnt %u [0x%02x " + "vs 0x%02x]\n", src_itr, cnt, + bin[src_itr + cnt], buf[cnt]); + result = src_itr + cnt + 1; + goto cmp_failed; + } + } + src_itr += result; + size -= result; + } + result = 0; +error: +cmp_failed: + return result; +} + + +/** + * Writes firmware headers to the device. + * + * @prd: PRD instance + * @hdr: Processed firmware + * @returns: 0 if ok, < 0 errno on error. + */ +static +int mac_fw_hdrs_push(struct i1480 *i1480, struct fw_hdr *hdr, + const char *fw_name, const char *fw_tag) +{ + struct device *dev = i1480->dev; + ssize_t result = 0; + struct fw_hdr *hdr_itr; + int verif_retry_count; + + d_fnstart(3, dev, "(%p, %p)\n", i1480, hdr); + /* Now, header by header, push them to the hw */ + for (hdr_itr = hdr; hdr_itr != NULL; hdr_itr = hdr_itr->next) { + verif_retry_count = 0; +retry: + dev_dbg(dev, "fw chunk (%zu @ 0x%08lx)\n", + hdr_itr->length * sizeof(hdr_itr->bin[0]), + hdr_itr->address); + result = i1480->write(i1480, hdr_itr->address, hdr_itr->bin, + hdr_itr->length*sizeof(hdr_itr->bin[0])); + if (result < 0) { + dev_err(dev, "%s fw '%s': write failed (%zuB @ 0x%lx):" + " %zd\n", fw_tag, fw_name, + hdr_itr->length * sizeof(hdr_itr->bin[0]), + hdr_itr->address, result); + break; + } + result = i1480_fw_cmp(i1480, hdr_itr); + if (result < 0) { + dev_err(dev, "%s fw '%s': verification read " + "failed (%zuB @ 0x%lx): %zd\n", + fw_tag, fw_name, + hdr_itr->length * sizeof(hdr_itr->bin[0]), + hdr_itr->address, result); + break; + } + if (result > 0) { /* Offset where it failed + 1 */ + result--; + dev_err(dev, "%s fw '%s': WARNING: verification " + "failed at 0x%lx: retrying\n", + fw_tag, fw_name, hdr_itr->address + result); + if (++verif_retry_count < 3) + goto retry; /* write this block again! */ + dev_err(dev, "%s fw '%s': verification failed at 0x%lx: " + "tried %d times\n", fw_tag, fw_name, + hdr_itr->address + result, verif_retry_count); + result = -EINVAL; + break; + } + } + d_fnend(3, dev, "(%zd)\n", result); + return result; +} + + +/** Puts the device in firmware upload mode.*/ +static +int mac_fw_upload_enable(struct i1480 *i1480) +{ + int result; + u32 reg = 0x800000c0; + u32 *buffer = (u32 *)i1480->cmd_buf; + + if (i1480->hw_rev > 1) + reg = 0x8000d0d4; + result = i1480->read(i1480, reg, sizeof(u32)); + if (result < 0) + goto error_cmd; + *buffer &= ~i1480_FW_UPLOAD_MODE_MASK; + result = i1480->write(i1480, reg, buffer, sizeof(u32)); + if (result < 0) + goto error_cmd; + return 0; +error_cmd: + dev_err(i1480->dev, "can't enable fw upload mode: %d\n", result); + return result; +} + + +/** Gets the device out of firmware upload mode. */ +static +int mac_fw_upload_disable(struct i1480 *i1480) +{ + int result; + u32 reg = 0x800000c0; + u32 *buffer = (u32 *)i1480->cmd_buf; + + if (i1480->hw_rev > 1) + reg = 0x8000d0d4; + result = i1480->read(i1480, reg, sizeof(u32)); + if (result < 0) + goto error_cmd; + *buffer |= i1480_FW_UPLOAD_MODE_MASK; + result = i1480->write(i1480, reg, buffer, sizeof(u32)); + if (result < 0) + goto error_cmd; + return 0; +error_cmd: + dev_err(i1480->dev, "can't disable fw upload mode: %d\n", result); + return result; +} + + + +/** + * Generic function for uploading a MAC firmware. + * + * @i1480: Device instance + * @fw_name: Name of firmware file to upload. + * @fw_tag: Name of the firmware type (for messages) + * [eg: MAC, PRE] + * @do_wait: Wait for device to emit initialization done message (0 + * for PRE fws, 1 for MAC fws). + * @returns: 0 if ok, < 0 errno on error. + */ +static +int __mac_fw_upload(struct i1480 *i1480, const char *fw_name, + const char *fw_tag) +{ + int result; + const struct firmware *fw; + struct fw_hdr *fw_hdrs; + + d_fnstart(3, i1480->dev, "(%p, %s, %s)\n", i1480, fw_name, fw_tag); + result = request_firmware(&fw, fw_name, i1480->dev); + if (result < 0) /* Up to caller to complain on -ENOENT */ + goto out; + d_printf(3, i1480->dev, "%s fw '%s': uploading\n", fw_tag, fw_name); + result = fw_hdrs_load(i1480, &fw_hdrs, fw->data, fw->size); + if (result < 0) { + dev_err(i1480->dev, "%s fw '%s': failed to parse firmware " + "file: %d\n", fw_tag, fw_name, result); + goto out_release; + } + result = mac_fw_upload_enable(i1480); + if (result < 0) + goto out_hdrs_release; + result = mac_fw_hdrs_push(i1480, fw_hdrs, fw_name, fw_tag); + mac_fw_upload_disable(i1480); +out_hdrs_release: + if (result >= 0) + dev_info(i1480->dev, "%s fw '%s': uploaded\n", fw_tag, fw_name); + else + dev_err(i1480->dev, "%s fw '%s': failed to upload (%d), " + "power cycle device\n", fw_tag, fw_name, result); + fw_hdrs_free(fw_hdrs); +out_release: + release_firmware(fw); +out: + d_fnend(3, i1480->dev, "(%p, %s, %s) = %d\n", i1480, fw_name, fw_tag, + result); + return result; +} + + +/** + * Upload a pre-PHY firmware + * + */ +int i1480_pre_fw_upload(struct i1480 *i1480) +{ + int result; + result = __mac_fw_upload(i1480, i1480->pre_fw_name, "PRE"); + if (result == 0) + msleep(400); + return result; +} + + +/** + * Reset a the MAC and PHY + * + * @i1480: Device's instance + * @returns: 0 if ok, < 0 errno code on error + * + * We put the command on kmalloc'ed memory as some arches cannot do + * USB from the stack. The reply event is copied from an stage buffer, + * so it can be in the stack. See WUSB1.0[8.6.2.4] for more details. + * + * We issue the reset to make sure the UWB controller reinits the PHY; + * this way we can now if the PHY init went ok. + */ +static +int i1480_cmd_reset(struct i1480 *i1480) +{ + int result; + struct uwb_rccb *cmd = (void *) i1480->cmd_buf; + struct i1480_evt_reset { + struct uwb_rceb rceb; + u8 bResultCode; + } __attribute__((packed)) *reply = (void *) i1480->evt_buf; + + result = -ENOMEM; + cmd->bCommandType = UWB_RC_CET_GENERAL; + cmd->wCommand = cpu_to_le16(UWB_RC_CMD_RESET); + reply->rceb.bEventType = UWB_RC_CET_GENERAL; + reply->rceb.wEvent = UWB_RC_CMD_RESET; + result = i1480_cmd(i1480, "RESET", sizeof(*cmd), sizeof(*reply)); + if (result < 0) + goto out; + if (reply->bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(i1480->dev, "RESET: command execution failed: %u\n", + reply->bResultCode); + result = -EIO; + } +out: + return result; + +} + + +/** Wait for the MAC FW to start running */ +static +int i1480_fw_is_running_q(struct i1480 *i1480) +{ + int cnt = 0; + int result; + u32 *val = (u32 *) i1480->cmd_buf; + + d_fnstart(3, i1480->dev, "(i1480 %p)\n", i1480); + for (cnt = 0; cnt < 10; cnt++) { + msleep(100); + result = i1480->read(i1480, 0x80080000, 4); + if (result < 0) { + dev_err(i1480->dev, "Can't read 0x8008000: %d\n", result); + goto out; + } + if (*val == 0x55555555UL) /* fw running? cool */ + goto out; + if (printk_ratelimit()) + d_printf(5, i1480->dev, "read #%d: 0x%08x\n", cnt, *val); + } + dev_err(i1480->dev, "Timed out waiting for fw to start\n"); + result = -ETIMEDOUT; +out: + d_fnend(3, i1480->dev, "(i1480 %p) = %d\n", i1480, result); + return result; + +} + + +/** + * Upload MAC firmware, wait for it to start + * + * @i1480: Device instance + * @fw_name: Name of the file that contains the firmware + * + * This has to be called after the pre fw has been uploaded (if + * there is any). + */ +int i1480_mac_fw_upload(struct i1480 *i1480) +{ + int result = 0, deprecated_name = 0; + struct i1480_rceb *rcebe = (void *) i1480->evt_buf; + + d_fnstart(3, i1480->dev, "(%p)\n", i1480); + result = __mac_fw_upload(i1480, i1480->mac_fw_name, "MAC"); + if (result == -ENOENT) { + result = __mac_fw_upload(i1480, i1480->mac_fw_name_deprecate, + "MAC"); + deprecated_name = 1; + } + if (result < 0) + return result; + if (deprecated_name == 1) + dev_warn(i1480->dev, + "WARNING: firmware file name %s is deprecated, " + "please rename to %s\n", + i1480->mac_fw_name_deprecate, i1480->mac_fw_name); + result = i1480_fw_is_running_q(i1480); + if (result < 0) + goto error_fw_not_running; + result = i1480->rc_setup? i1480->rc_setup(i1480) : 0; + if (result < 0) { + dev_err(i1480->dev, "Cannot setup after MAC fw upload: %d\n", + result); + goto error_setup; + } + result = i1480->wait_init_done(i1480); /* wait init'on */ + if (result < 0) { + dev_err(i1480->dev, "MAC fw '%s': Initialization timed out " + "(%d)\n", i1480->mac_fw_name, result); + goto error_init_timeout; + } + /* verify we got the right initialization done event */ + if (i1480->evt_result != sizeof(*rcebe)) { + dev_err(i1480->dev, "MAC fw '%s': initialization event returns " + "wrong size (%zu bytes vs %zu needed)\n", + i1480->mac_fw_name, i1480->evt_result, sizeof(*rcebe)); + dump_bytes(i1480->dev, rcebe, min(i1480->evt_result, (ssize_t)32)); + goto error_size; + } + result = -EIO; + if (rcebe->rceb.bEventType != i1480_CET_VS1 + || le16_to_cpu(rcebe->rceb.wEvent) != i1480_EVT_RM_INIT_DONE) { + dev_err(i1480->dev, "wrong initialization event 0x%02x/%04x/%02x " + "received; expected 0x%02x/%04x/00\n", + rcebe->rceb.bEventType, le16_to_cpu(rcebe->rceb.wEvent), + rcebe->rceb.bEventContext, i1480_CET_VS1, + i1480_EVT_RM_INIT_DONE); + goto error_init_timeout; + } + result = i1480_cmd_reset(i1480); + if (result < 0) + dev_err(i1480->dev, "MAC fw '%s': MBOA reset failed (%d)\n", + i1480->mac_fw_name, result); +error_fw_not_running: +error_init_timeout: +error_size: +error_setup: + d_fnend(3, i1480->dev, "(i1480 %p) = %d\n", i1480, result); + return result; +} diff --git a/drivers/uwb/i1480/dfu/phy.c b/drivers/uwb/i1480/dfu/phy.c new file mode 100644 index 000000000000..3b1a87de8e63 --- /dev/null +++ b/drivers/uwb/i1480/dfu/phy.c @@ -0,0 +1,203 @@ +/* + * Intel Wireless UWB Link 1480 + * PHY parameters upload + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Code for uploading the PHY parameters to the PHY through the UWB + * Radio Control interface. + * + * We just send the data through the MPI interface using HWA-like + * commands and then reset the PHY to make sure it is ok. + */ +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/firmware.h> +#include <linux/usb/wusb.h> +#include "i1480-dfu.h" + + +/** + * Write a value array to an address of the MPI interface + * + * @i1480: Device descriptor + * @data: Data array to write + * @size: Size of the data array + * @returns: 0 if ok, < 0 errno code on error. + * + * The data array is organized into pairs: + * + * ADDRESS VALUE + * + * ADDRESS is BE 16 bit unsigned, VALUE 8 bit unsigned. Size thus has + * to be a multiple of three. + */ +static +int i1480_mpi_write(struct i1480 *i1480, const void *data, size_t size) +{ + int result; + struct i1480_cmd_mpi_write *cmd = i1480->cmd_buf; + struct i1480_evt_confirm *reply = i1480->evt_buf; + + BUG_ON(size > 480); + result = -ENOMEM; + cmd->rccb.bCommandType = i1480_CET_VS1; + cmd->rccb.wCommand = cpu_to_le16(i1480_CMD_MPI_WRITE); + cmd->size = cpu_to_le16(size); + memcpy(cmd->data, data, size); + reply->rceb.bEventType = i1480_CET_VS1; + reply->rceb.wEvent = i1480_CMD_MPI_WRITE; + result = i1480_cmd(i1480, "MPI-WRITE", sizeof(*cmd) + size, sizeof(*reply)); + if (result < 0) + goto out; + if (reply->bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(i1480->dev, "MPI-WRITE: command execution failed: %d\n", + reply->bResultCode); + result = -EIO; + } +out: + return result; +} + + +/** + * Read a value array to from an address of the MPI interface + * + * @i1480: Device descriptor + * @data: where to place the read array + * @srcaddr: Where to read from + * @size: Size of the data read array + * @returns: 0 if ok, < 0 errno code on error. + * + * The command data array is organized into pairs ADDR0 ADDR1..., and + * the returned data in ADDR0 VALUE0 ADDR1 VALUE1... + * + * We generate the command array to be a sequential read and then + * rearrange the result. + * + * We use the i1480->cmd_buf for the command, i1480->evt_buf for the reply. + * + * As the reply has to fit in 512 bytes (i1480->evt_buffer), the max amount + * of values we can read is (512 - sizeof(*reply)) / 3 + */ +static +int i1480_mpi_read(struct i1480 *i1480, u8 *data, u16 srcaddr, size_t size) +{ + int result; + struct i1480_cmd_mpi_read *cmd = i1480->cmd_buf; + struct i1480_evt_mpi_read *reply = i1480->evt_buf; + unsigned cnt; + + memset(i1480->cmd_buf, 0x69, 512); + memset(i1480->evt_buf, 0x69, 512); + + BUG_ON(size > (i1480->buf_size - sizeof(*reply)) / 3); + result = -ENOMEM; + cmd->rccb.bCommandType = i1480_CET_VS1; + cmd->rccb.wCommand = cpu_to_le16(i1480_CMD_MPI_READ); + cmd->size = cpu_to_le16(3*size); + for (cnt = 0; cnt < size; cnt++) { + cmd->data[cnt].page = (srcaddr + cnt) >> 8; + cmd->data[cnt].offset = (srcaddr + cnt) & 0xff; + } + reply->rceb.bEventType = i1480_CET_VS1; + reply->rceb.wEvent = i1480_CMD_MPI_READ; + result = i1480_cmd(i1480, "MPI-READ", sizeof(*cmd) + 2*size, + sizeof(*reply) + 3*size); + if (result < 0) + goto out; + if (reply->bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(i1480->dev, "MPI-READ: command execution failed: %d\n", + reply->bResultCode); + result = -EIO; + } + for (cnt = 0; cnt < size; cnt++) { + if (reply->data[cnt].page != (srcaddr + cnt) >> 8) + dev_err(i1480->dev, "MPI-READ: page inconsistency at " + "index %u: expected 0x%02x, got 0x%02x\n", cnt, + (srcaddr + cnt) >> 8, reply->data[cnt].page); + if (reply->data[cnt].offset != ((srcaddr + cnt) & 0x00ff)) + dev_err(i1480->dev, "MPI-READ: offset inconsistency at " + "index %u: expected 0x%02x, got 0x%02x\n", cnt, + (srcaddr + cnt) & 0x00ff, + reply->data[cnt].offset); + data[cnt] = reply->data[cnt].value; + } + result = 0; +out: + return result; +} + + +/** + * Upload a PHY firmware, wait for it to start + * + * @i1480: Device instance + * @fw_name: Name of the file that contains the firmware + * + * We assume the MAC fw is up and running. This means we can use the + * MPI interface to write the PHY firmware. Once done, we issue an + * MBOA Reset, which will force the MAC to reset and reinitialize the + * PHY. If that works, we are ready to go. + * + * Max packet size for the MPI write is 512, so the max buffer is 480 + * (which gives us 160 byte triads of MSB, LSB and VAL for the data). + */ +int i1480_phy_fw_upload(struct i1480 *i1480) +{ + int result; + const struct firmware *fw; + const char *data_itr, *data_top; + const size_t MAX_BLK_SIZE = 480; /* 160 triads */ + size_t data_size; + u8 phy_stat; + + result = request_firmware(&fw, i1480->phy_fw_name, i1480->dev); + if (result < 0) + goto out; + /* Loop writing data in chunks as big as possible until done. */ + for (data_itr = fw->data, data_top = data_itr + fw->size; + data_itr < data_top; data_itr += MAX_BLK_SIZE) { + data_size = min(MAX_BLK_SIZE, (size_t) (data_top - data_itr)); + result = i1480_mpi_write(i1480, data_itr, data_size); + if (result < 0) + goto error_mpi_write; + } + /* Read MPI page 0, offset 6; if 0, PHY was initialized correctly. */ + result = i1480_mpi_read(i1480, &phy_stat, 0x0006, 1); + if (result < 0) { + dev_err(i1480->dev, "PHY: can't get status: %d\n", result); + goto error_mpi_status; + } + if (phy_stat != 0) { + result = -ENODEV; + dev_info(i1480->dev, "error, PHY not ready: %u\n", phy_stat); + goto error_phy_status; + } + dev_info(i1480->dev, "PHY fw '%s': uploaded\n", i1480->phy_fw_name); +error_phy_status: +error_mpi_status: +error_mpi_write: + release_firmware(fw); + if (result < 0) + dev_err(i1480->dev, "PHY fw '%s': failed to upload (%d), " + "power cycle device\n", i1480->phy_fw_name, result); +out: + return result; +} diff --git a/drivers/uwb/i1480/dfu/usb.c b/drivers/uwb/i1480/dfu/usb.c new file mode 100644 index 000000000000..3be642b719b6 --- /dev/null +++ b/drivers/uwb/i1480/dfu/usb.c @@ -0,0 +1,501 @@ +/* + * Intel Wireless UWB Link 1480 + * USB SKU firmware upload implementation + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This driver will prepare the i1480 device to behave as a real + * Wireless USB HWA adaptor by uploading the firmware. + * + * When the device is connected or driver is loaded, i1480_usb_probe() + * is called--this will allocate and initialize the device structure, + * fill in the pointers to the common functions (read, write, + * wait_init_done and cmd for HWA command execution) and once that is + * done, call the common firmware uploading routine. Then clean up and + * return -ENODEV, as we don't attach to the device. + * + * The rest are the basic ops we implement that the fw upload code + * uses to do its job. All the ops in the common code are i1480->NAME, + * the functions are i1480_usb_NAME(). + */ +#include <linux/module.h> +#include <linux/version.h> +#include <linux/usb.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/uwb.h> +#include <linux/usb/wusb.h> +#include <linux/usb/wusb-wa.h> +#include "i1480-dfu.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + + +struct i1480_usb { + struct i1480 i1480; + struct usb_device *usb_dev; + struct usb_interface *usb_iface; + struct urb *neep_urb; /* URB for reading from EP1 */ +}; + + +static +void i1480_usb_init(struct i1480_usb *i1480_usb) +{ + i1480_init(&i1480_usb->i1480); +} + + +static +int i1480_usb_create(struct i1480_usb *i1480_usb, struct usb_interface *iface) +{ + struct usb_device *usb_dev = interface_to_usbdev(iface); + int result = -ENOMEM; + + i1480_usb->usb_dev = usb_get_dev(usb_dev); /* bind the USB device */ + i1480_usb->usb_iface = usb_get_intf(iface); + usb_set_intfdata(iface, i1480_usb); /* Bind the driver to iface0 */ + i1480_usb->neep_urb = usb_alloc_urb(0, GFP_KERNEL); + if (i1480_usb->neep_urb == NULL) + goto error; + return 0; + +error: + usb_set_intfdata(iface, NULL); + usb_put_intf(iface); + usb_put_dev(usb_dev); + return result; +} + + +static +void i1480_usb_destroy(struct i1480_usb *i1480_usb) +{ + usb_kill_urb(i1480_usb->neep_urb); + usb_free_urb(i1480_usb->neep_urb); + usb_set_intfdata(i1480_usb->usb_iface, NULL); + usb_put_intf(i1480_usb->usb_iface); + usb_put_dev(i1480_usb->usb_dev); +} + + +/** + * Write a buffer to a memory address in the i1480 device + * + * @i1480: i1480 instance + * @memory_address: + * Address where to write the data buffer to. + * @buffer: Buffer to the data + * @size: Size of the buffer [has to be < 512]. + * @returns: 0 if ok, < 0 errno code on error. + * + * Data buffers to USB cannot be on the stack or in vmalloc'ed areas, + * so we copy it to the local i1480 buffer before proceeding. In any + * case, we have a max size we can send, soooo. + */ +static +int i1480_usb_write(struct i1480 *i1480, u32 memory_address, + const void *buffer, size_t size) +{ + int result = 0; + struct i1480_usb *i1480_usb = container_of(i1480, struct i1480_usb, i1480); + size_t buffer_size, itr = 0; + + d_fnstart(3, i1480->dev, "(%p, 0x%08x, %p, %zu)\n", + i1480, memory_address, buffer, size); + BUG_ON(size & 0x3); /* Needs to be a multiple of 4 */ + while (size > 0) { + buffer_size = size < i1480->buf_size? + size : i1480->buf_size; + memcpy(i1480->cmd_buf, buffer + itr, buffer_size); + result = usb_control_msg( + i1480_usb->usb_dev, usb_sndctrlpipe(i1480_usb->usb_dev, 0), + 0xf0, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + cpu_to_le16(memory_address & 0xffff), + cpu_to_le16((memory_address >> 16) & 0xffff), + i1480->cmd_buf, buffer_size, 100 /* FIXME: arbitrary */); + if (result < 0) + break; + d_printf(3, i1480->dev, + "wrote @ 0x%08x %u bytes (of %zu bytes requested)\n", + memory_address, result, buffer_size); + d_dump(4, i1480->dev, i1480->cmd_buf, result); + itr += result; + memory_address += result; + size -= result; + } + d_fnend(3, i1480->dev, "(%p, 0x%08x, %p, %zu) = %d\n", + i1480, memory_address, buffer, size, result); + return result; +} + + +/** + * Read a block [max size 512] of the device's memory to @i1480's buffer. + * + * @i1480: i1480 instance + * @memory_address: + * Address where to read from. + * @size: Size to read. Smaller than or equal to 512. + * @returns: >= 0 number of bytes written if ok, < 0 errno code on error. + * + * NOTE: if the memory address or block is incorrect, you might get a + * stall or a different memory read. Caller has to verify the + * memory address and size passed back in the @neh structure. + */ +static +int i1480_usb_read(struct i1480 *i1480, u32 addr, size_t size) +{ + ssize_t result = 0, bytes = 0; + size_t itr, read_size = i1480->buf_size; + struct i1480_usb *i1480_usb = container_of(i1480, struct i1480_usb, i1480); + + d_fnstart(3, i1480->dev, "(%p, 0x%08x, %zu)\n", + i1480, addr, size); + BUG_ON(size > i1480->buf_size); + BUG_ON(size & 0x3); /* Needs to be a multiple of 4 */ + BUG_ON(read_size > 512); + + if (addr >= 0x8000d200 && addr < 0x8000d400) /* Yeah, HW quirk */ + read_size = 4; + + for (itr = 0; itr < size; itr += read_size) { + size_t itr_addr = addr + itr; + size_t itr_size = min(read_size, size - itr); + result = usb_control_msg( + i1480_usb->usb_dev, usb_rcvctrlpipe(i1480_usb->usb_dev, 0), + 0xf0, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + cpu_to_le16(itr_addr & 0xffff), + cpu_to_le16((itr_addr >> 16) & 0xffff), + i1480->cmd_buf + itr, itr_size, + 100 /* FIXME: arbitrary */); + if (result < 0) { + dev_err(i1480->dev, "%s: USB read error: %zd\n", + __func__, result); + goto out; + } + if (result != itr_size) { + result = -EIO; + dev_err(i1480->dev, + "%s: partial read got only %zu bytes vs %zu expected\n", + __func__, result, itr_size); + goto out; + } + bytes += result; + } + result = bytes; +out: + d_fnend(3, i1480->dev, "(%p, 0x%08x, %zu) = %zd\n", + i1480, addr, size, result); + if (result > 0) + d_dump(4, i1480->dev, i1480->cmd_buf, result); + return result; +} + + +/** + * Callback for reads on the notification/event endpoint + * + * Just enables the completion read handler. + */ +static +void i1480_usb_neep_cb(struct urb *urb) +{ + struct i1480 *i1480 = urb->context; + struct device *dev = i1480->dev; + + switch (urb->status) { + case 0: + break; + case -ECONNRESET: /* Not an error, but a controlled situation; */ + case -ENOENT: /* (we killed the URB)...so, no broadcast */ + dev_dbg(dev, "NEEP: reset/noent %d\n", urb->status); + break; + case -ESHUTDOWN: /* going away! */ + dev_dbg(dev, "NEEP: down %d\n", urb->status); + break; + default: + dev_err(dev, "NEEP: unknown status %d\n", urb->status); + break; + } + i1480->evt_result = urb->actual_length; + complete(&i1480->evt_complete); + return; +} + + +/** + * Wait for the MAC FW to initialize + * + * MAC FW sends a 0xfd/0101/00 notification to EP1 when done + * initializing. Get that notification into i1480->evt_buf; upper layer + * will verify it. + * + * Set i1480->evt_result with the result of getting the event or its + * size (if succesful). + * + * Delivers the data directly to i1480->evt_buf + */ +static +int i1480_usb_wait_init_done(struct i1480 *i1480) +{ + int result; + struct device *dev = i1480->dev; + struct i1480_usb *i1480_usb = container_of(i1480, struct i1480_usb, i1480); + struct usb_endpoint_descriptor *epd; + + d_fnstart(3, dev, "(%p)\n", i1480); + init_completion(&i1480->evt_complete); + i1480->evt_result = -EINPROGRESS; + epd = &i1480_usb->usb_iface->cur_altsetting->endpoint[0].desc; + usb_fill_int_urb(i1480_usb->neep_urb, i1480_usb->usb_dev, + usb_rcvintpipe(i1480_usb->usb_dev, epd->bEndpointAddress), + i1480->evt_buf, i1480->buf_size, + i1480_usb_neep_cb, i1480, epd->bInterval); + result = usb_submit_urb(i1480_usb->neep_urb, GFP_KERNEL); + if (result < 0) { + dev_err(dev, "init done: cannot submit NEEP read: %d\n", + result); + goto error_submit; + } + /* Wait for the USB callback to get the data */ + result = wait_for_completion_interruptible_timeout( + &i1480->evt_complete, HZ); + if (result <= 0) { + result = result == 0? -ETIMEDOUT : result; + goto error_wait; + } + usb_kill_urb(i1480_usb->neep_urb); + d_fnend(3, dev, "(%p) = 0\n", i1480); + return 0; + +error_wait: + usb_kill_urb(i1480_usb->neep_urb); +error_submit: + i1480->evt_result = result; + d_fnend(3, dev, "(%p) = %d\n", i1480, result); + return result; +} + + +/** + * Generic function for issuing commands to the i1480 + * + * @i1480: i1480 instance + * @cmd_name: Name of the command (for error messages) + * @cmd: Pointer to command buffer + * @cmd_size: Size of the command buffer + * @reply: Buffer for the reply event + * @reply_size: Expected size back (including RCEB); the reply buffer + * is assumed to be as big as this. + * @returns: >= 0 size of the returned event data if ok, + * < 0 errno code on error. + * + * Arms the NE handle, issues the command to the device and checks the + * basics of the reply event. + */ +static +int i1480_usb_cmd(struct i1480 *i1480, const char *cmd_name, size_t cmd_size) +{ + int result; + struct device *dev = i1480->dev; + struct i1480_usb *i1480_usb = container_of(i1480, struct i1480_usb, i1480); + struct usb_endpoint_descriptor *epd; + struct uwb_rccb *cmd = i1480->cmd_buf; + u8 iface_no; + + d_fnstart(3, dev, "(%p, %s, %zu)\n", i1480, cmd_name, cmd_size); + /* Post a read on the notification & event endpoint */ + iface_no = i1480_usb->usb_iface->cur_altsetting->desc.bInterfaceNumber; + epd = &i1480_usb->usb_iface->cur_altsetting->endpoint[0].desc; + usb_fill_int_urb( + i1480_usb->neep_urb, i1480_usb->usb_dev, + usb_rcvintpipe(i1480_usb->usb_dev, epd->bEndpointAddress), + i1480->evt_buf, i1480->buf_size, + i1480_usb_neep_cb, i1480, epd->bInterval); + result = usb_submit_urb(i1480_usb->neep_urb, GFP_KERNEL); + if (result < 0) { + dev_err(dev, "%s: cannot submit NEEP read: %d\n", + cmd_name, result); + goto error_submit_ep1; + } + /* Now post the command on EP0 */ + result = usb_control_msg( + i1480_usb->usb_dev, usb_sndctrlpipe(i1480_usb->usb_dev, 0), + WA_EXEC_RC_CMD, + USB_DIR_OUT | USB_RECIP_INTERFACE | USB_TYPE_CLASS, + 0, iface_no, + cmd, cmd_size, + 100 /* FIXME: this is totally arbitrary */); + if (result < 0) { + dev_err(dev, "%s: control request failed: %d\n", + cmd_name, result); + goto error_submit_ep0; + } + d_fnend(3, dev, "(%p, %s, %zu) = %d\n", + i1480, cmd_name, cmd_size, result); + return result; + +error_submit_ep0: + usb_kill_urb(i1480_usb->neep_urb); +error_submit_ep1: + d_fnend(3, dev, "(%p, %s, %zu) = %d\n", + i1480, cmd_name, cmd_size, result); + return result; +} + + +/* + * Probe a i1480 device for uploading firmware. + * + * We attach only to interface #0, which is the radio control interface. + */ +static +int i1480_usb_probe(struct usb_interface *iface, const struct usb_device_id *id) +{ + struct i1480_usb *i1480_usb; + struct i1480 *i1480; + struct device *dev = &iface->dev; + int result; + + result = -ENODEV; + if (iface->cur_altsetting->desc.bInterfaceNumber != 0) { + dev_dbg(dev, "not attaching to iface %d\n", + iface->cur_altsetting->desc.bInterfaceNumber); + goto error; + } + if (iface->num_altsetting > 1 + && interface_to_usbdev(iface)->descriptor.idProduct == 0xbabe) { + /* Need altsetting #1 [HW QUIRK] or EP1 won't work */ + result = usb_set_interface(interface_to_usbdev(iface), 0, 1); + if (result < 0) + dev_warn(dev, + "can't set altsetting 1 on iface 0: %d\n", + result); + } + + result = -ENOMEM; + i1480_usb = kzalloc(sizeof(*i1480_usb), GFP_KERNEL); + if (i1480_usb == NULL) { + dev_err(dev, "Unable to allocate instance\n"); + goto error; + } + i1480_usb_init(i1480_usb); + + i1480 = &i1480_usb->i1480; + i1480->buf_size = 512; + i1480->cmd_buf = kmalloc(2 * i1480->buf_size, GFP_KERNEL); + if (i1480->cmd_buf == NULL) { + dev_err(dev, "Cannot allocate transfer buffers\n"); + result = -ENOMEM; + goto error_buf_alloc; + } + i1480->evt_buf = i1480->cmd_buf + i1480->buf_size; + + result = i1480_usb_create(i1480_usb, iface); + if (result < 0) { + dev_err(dev, "Cannot create instance: %d\n", result); + goto error_create; + } + + /* setup the fops and upload the firmare */ + i1480->pre_fw_name = "i1480-pre-phy-0.0.bin"; + i1480->mac_fw_name = "i1480-usb-0.0.bin"; + i1480->mac_fw_name_deprecate = "ptc-0.0.bin"; + i1480->phy_fw_name = "i1480-phy-0.0.bin"; + i1480->dev = &iface->dev; + i1480->write = i1480_usb_write; + i1480->read = i1480_usb_read; + i1480->rc_setup = NULL; + i1480->wait_init_done = i1480_usb_wait_init_done; + i1480->cmd = i1480_usb_cmd; + + result = i1480_fw_upload(&i1480_usb->i1480); /* the real thing */ + if (result >= 0) { + usb_reset_device(i1480_usb->usb_dev); + result = -ENODEV; /* we don't want to bind to the iface */ + } + i1480_usb_destroy(i1480_usb); +error_create: + kfree(i1480->cmd_buf); +error_buf_alloc: + kfree(i1480_usb); +error: + return result; +} + +#define i1480_USB_DEV(v, p) \ +{ \ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE \ + | USB_DEVICE_ID_MATCH_DEV_INFO \ + | USB_DEVICE_ID_MATCH_INT_INFO, \ + .idVendor = (v), \ + .idProduct = (p), \ + .bDeviceClass = 0xff, \ + .bDeviceSubClass = 0xff, \ + .bDeviceProtocol = 0xff, \ + .bInterfaceClass = 0xff, \ + .bInterfaceSubClass = 0xff, \ + .bInterfaceProtocol = 0xff, \ +} + + +/** USB device ID's that we handle */ +static struct usb_device_id i1480_usb_id_table[] = { + i1480_USB_DEV(0x8086, 0xdf3b), + i1480_USB_DEV(0x15a9, 0x0005), + i1480_USB_DEV(0x07d1, 0x3802), + i1480_USB_DEV(0x050d, 0x305a), + i1480_USB_DEV(0x3495, 0x3007), + {}, +}; +MODULE_DEVICE_TABLE(usb, i1480_usb_id_table); + + +static struct usb_driver i1480_dfu_driver = { + .name = "i1480-dfu-usb", + .id_table = i1480_usb_id_table, + .probe = i1480_usb_probe, + .disconnect = NULL, +}; + + +/* + * Initialize the i1480 DFU driver. + * + * We also need to register our function for guessing event sizes. + */ +static int __init i1480_dfu_driver_init(void) +{ + return usb_register(&i1480_dfu_driver); +} +module_init(i1480_dfu_driver_init); + + +static void __exit i1480_dfu_driver_exit(void) +{ + usb_deregister(&i1480_dfu_driver); +} +module_exit(i1480_dfu_driver_exit); + + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Intel Wireless UWB Link 1480 firmware uploader for USB"); +MODULE_LICENSE("GPL"); diff --git a/drivers/uwb/i1480/i1480-est.c b/drivers/uwb/i1480/i1480-est.c new file mode 100644 index 000000000000..7bf8c6febae7 --- /dev/null +++ b/drivers/uwb/i1480/i1480-est.c @@ -0,0 +1,99 @@ +/* + * Intel Wireless UWB Link 1480 + * Event Size tables for Wired Adaptors + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/uwb.h> +#include "dfu/i1480-dfu.h" + + +/** Event size table for wEvents 0x00XX */ +static struct uwb_est_entry i1480_est_fd00[] = { + /* Anybody expecting this response has to use + * neh->extra_size to specify the real size that will + * come back. */ + [i1480_EVT_CONFIRM] = { .size = sizeof(struct i1480_evt_confirm) }, + [i1480_CMD_SET_IP_MAS] = { .size = sizeof(struct i1480_evt_confirm) }, +#ifdef i1480_RCEB_EXTENDED + [0x09] = { + .size = sizeof(struct i1480_rceb), + .offset = 1 + offsetof(struct i1480_rceb, wParamLength), + }, +#endif +}; + +/** Event size table for wEvents 0x01XX */ +static struct uwb_est_entry i1480_est_fd01[] = { + [0xff & i1480_EVT_RM_INIT_DONE] = { .size = sizeof(struct i1480_rceb) }, + [0xff & i1480_EVT_DEV_ADD] = { .size = sizeof(struct i1480_rceb) + 9 }, + [0xff & i1480_EVT_DEV_RM] = { .size = sizeof(struct i1480_rceb) + 9 }, + [0xff & i1480_EVT_DEV_ID_CHANGE] = { + .size = sizeof(struct i1480_rceb) + 2 }, +}; + +static int i1480_est_init(void) +{ + int result = uwb_est_register(i1480_CET_VS1, 0x00, 0x8086, 0x0c3b, + i1480_est_fd00, + ARRAY_SIZE(i1480_est_fd00)); + if (result < 0) { + printk(KERN_ERR "Can't register EST table fd00: %d\n", result); + return result; + } + result = uwb_est_register(i1480_CET_VS1, 0x01, 0x8086, 0x0c3b, + i1480_est_fd01, ARRAY_SIZE(i1480_est_fd01)); + if (result < 0) { + printk(KERN_ERR "Can't register EST table fd01: %d\n", result); + return result; + } + return 0; +} +module_init(i1480_est_init); + +static void i1480_est_exit(void) +{ + uwb_est_unregister(i1480_CET_VS1, 0x00, 0x8086, 0x0c3b, + i1480_est_fd00, ARRAY_SIZE(i1480_est_fd00)); + uwb_est_unregister(i1480_CET_VS1, 0x01, 0x8086, 0x0c3b, + i1480_est_fd01, ARRAY_SIZE(i1480_est_fd01)); +} +module_exit(i1480_est_exit); + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("i1480's Vendor Specific Event Size Tables"); +MODULE_LICENSE("GPL"); + +/** + * USB device ID's that we handle + * + * [so we are loaded when this kind device is connected] + */ +static struct usb_device_id i1480_est_id_table[] = { + { USB_DEVICE(0x8086, 0xdf3b), }, + { USB_DEVICE(0x8086, 0x0c3b), }, + { }, +}; +MODULE_DEVICE_TABLE(usb, i1480_est_id_table); diff --git a/drivers/uwb/i1480/i1480-wlp.h b/drivers/uwb/i1480/i1480-wlp.h new file mode 100644 index 000000000000..37b67e1a6c32 --- /dev/null +++ b/drivers/uwb/i1480/i1480-wlp.h @@ -0,0 +1,155 @@ +/* + * Intel 1480 Wireless UWB Link + * WLP specific definitions + * + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ + +#ifndef __i1480_wlp_h__ +#define __i1480_wlp_h__ + +#include <linux/spinlock.h> +#include <linux/list.h> +#include <linux/uwb.h> +#include <linux/if_ether.h> + +/* New simplified header format? */ +#undef WLP_HDR_FMT_2 /* FIXME: rename */ + +/** + * Values of the Delivery ID & Type field when PCA or DRP + * + * The Delivery ID & Type field in the WLP TX header indicates whether + * the frame is PCA or DRP. This is done based on the high level bit of + * this field. + * We use this constant to test if the traffic is PCA or DRP as follows: + * if (wlp_tx_hdr->delivery_id_type & WLP_DRP) + * this is DRP traffic + * else + * this is PCA traffic + */ +enum deliver_id_type_bit { + WLP_DRP = 8, +}; + +/** + * WLP TX header + * + * Indicates UWB/WLP-specific transmission parameters for a network + * packet. + */ +struct wlp_tx_hdr { + /* dword 0 */ + struct uwb_dev_addr dstaddr; + u8 key_index; + DECL_BF_LE3( + u8 delivery_id_type:4, + enum uwb_ack_pol ack_pol:3, + u8 rts_cts:1 + ) __attribute__((packed)); + /* dword 1 */ + DECL_BF_LE2( + enum uwb_phy_rate phy_rate:4, + s8 tx_power_ctl:4 + ) __attribute__((packed)); +#ifndef WLP_HDR_FMT_2 + u8 reserved; + __le16 oui01; /* FIXME: not so sure if __le16 or u8[2] */ + /* dword 2 */ + u8 oui2; /* if all LE, it could be merged */ + __le16 prid; +#endif +} __attribute__((packed)); + + +/** + * WLP RX header + * + * Provides UWB/WLP-specific transmission data for a received + * network packet. + */ +struct wlp_rx_hdr { + /* dword 0 */ + struct uwb_dev_addr dstaddr; + struct uwb_dev_addr srcaddr; + /* dword 1 */ + u8 LQI; + s8 RSSI; + u8 reserved3; +#ifndef WLP_HDR_FMT_2 + u8 oui0; + /* dword 2 */ + __le16 oui12; + __le16 prid; +#endif +} __attribute__((packed)); + + +/** User configurable options for WLP */ +struct wlp_options { + struct mutex mutex; /* access to user configurable options*/ + struct wlp_tx_hdr def_tx_hdr; /* default tx hdr */ + u8 pca_base_priority; + u8 bw_alloc; /*index into bw_allocs[] for PCA/DRP reservations*/ +}; + + +static inline +void wlp_options_init(struct wlp_options *options) +{ + mutex_init(&options->mutex); + options->def_tx_hdr.ack_pol = UWB_ACK_INM; + options->def_tx_hdr.rts_cts = 1; + /* FIXME: default to phy caps */ + options->def_tx_hdr.phy_rate = UWB_PHY_RATE_480; +#ifndef WLP_HDR_FMT_2 + options->def_tx_hdr.prid = cpu_to_le16(0x0000); +#endif +} + + +/* sysfs helpers */ + +extern ssize_t uwb_pca_base_priority_store(struct wlp_options *, + const char *, size_t); +extern ssize_t uwb_pca_base_priority_show(const struct wlp_options *, char *); +extern ssize_t uwb_bw_alloc_store(struct wlp_options *, const char *, size_t); +extern ssize_t uwb_bw_alloc_show(const struct wlp_options *, char *); +extern ssize_t uwb_ack_policy_store(struct wlp_options *, + const char *, size_t); +extern ssize_t uwb_ack_policy_show(const struct wlp_options *, char *); +extern ssize_t uwb_rts_cts_store(struct wlp_options *, const char *, size_t); +extern ssize_t uwb_rts_cts_show(const struct wlp_options *, char *); +extern ssize_t uwb_phy_rate_store(struct wlp_options *, const char *, size_t); +extern ssize_t uwb_phy_rate_show(const struct wlp_options *, char *); + + +/** Simple bandwidth allocation (temporary and too simple) */ +struct wlp_bw_allocs { + const char *name; + struct { + u8 mask, stream; + } tx, rx; +}; + + +#endif /* #ifndef __i1480_wlp_h__ */ diff --git a/drivers/uwb/i1480/i1480u-wlp/Makefile b/drivers/uwb/i1480/i1480u-wlp/Makefile new file mode 100644 index 000000000000..fe6709b8e68b --- /dev/null +++ b/drivers/uwb/i1480/i1480u-wlp/Makefile @@ -0,0 +1,8 @@ +obj-$(CONFIG_UWB_I1480U_WLP) += i1480u-wlp.o + +i1480u-wlp-objs := \ + lc.o \ + netdev.o \ + rx.o \ + sysfs.o \ + tx.o diff --git a/drivers/uwb/i1480/i1480u-wlp/i1480u-wlp.h b/drivers/uwb/i1480/i1480u-wlp/i1480u-wlp.h new file mode 100644 index 000000000000..d51cb9364c92 --- /dev/null +++ b/drivers/uwb/i1480/i1480u-wlp/i1480u-wlp.h @@ -0,0 +1,269 @@ +/* + * Intel 1480 Wireless UWB Link USB + * Header formats, constants, general internal interfaces + * + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This is not an standard interface. + * + * FIXME: docs + * + * i1480u-wlp is pretty simple: two endpoints, one for tx, one for + * rx. rx is polled. Network packets (ethernet, whatever) are wrapped + * in i1480 TX or RX headers (for sending over the air), and these + * packets are wrapped in UNTD headers (for sending to the WLP UWB + * controller). + * + * UNTD packets (UNTD hdr + i1480 hdr + network packet) packets + * cannot be bigger than i1480u_MAX_FRG_SIZE. When this happens, the + * i1480 packet is broken in chunks/packets: + * + * UNTD-1st.hdr + i1480.hdr + payload + * UNTD-next.hdr + payload + * ... + * UNTD-last.hdr + payload + * + * so that each packet is smaller or equal than i1480u_MAX_FRG_SIZE. + * + * All HW structures and bitmaps are little endian, so we need to play + * ugly tricks when defining bitfields. Hoping for the day GCC + * implements __attribute__((endian(1234))). + * + * FIXME: ROADMAP to the whole implementation + */ + +#ifndef __i1480u_wlp_h__ +#define __i1480u_wlp_h__ + +#include <linux/usb.h> +#include <linux/netdevice.h> +#include <linux/uwb.h> /* struct uwb_rc, struct uwb_notifs_handler */ +#include <linux/wlp.h> +#include "../i1480-wlp.h" + +#undef i1480u_FLOW_CONTROL /* Enable flow control code */ + +/** + * Basic flow control + */ +enum { + i1480u_TX_INFLIGHT_MAX = 1000, + i1480u_TX_INFLIGHT_THRESHOLD = 100, +}; + +/** Maximum size of a transaction that we can tx/rx */ +enum { + /* Maximum packet size computed as follows: max UNTD header (8) + + * i1480 RX header (8) + max Ethernet header and payload (4096) + + * Padding added by skb_reserve (2) to make post Ethernet payload + * start on 16 byte boundary*/ + i1480u_MAX_RX_PKT_SIZE = 4114, + i1480u_MAX_FRG_SIZE = 512, + i1480u_RX_BUFS = 9, +}; + + +/** + * UNTD packet type + * + * We need to fragment any payload whose UNTD packet is going to be + * bigger than i1480u_MAX_FRG_SIZE. + */ +enum i1480u_pkt_type { + i1480u_PKT_FRAG_1ST = 0x1, + i1480u_PKT_FRAG_NXT = 0x0, + i1480u_PKT_FRAG_LST = 0x2, + i1480u_PKT_FRAG_CMP = 0x3 +}; +enum { + i1480u_PKT_NONE = 0x4, +}; + +/** USB Network Transfer Descriptor - common */ +struct untd_hdr { + DECL_BF_LE4( + enum i1480u_pkt_type type:2, + u8 rx_tx:1, /* !0 == rx */ + u8 reserved1:2, + u8 reserved2:3 + ) __attribute__((packed)); + __le16 len; +} __attribute__((packed)); + + +/** + * USB Network Transfer Descriptor - Complete Packet + * + * This is for a packet that is smaller (header + payload) than + * i1480u_MAX_FRG_SIZE. + * + * @hdr.total_len is the size of the payload; the payload doesn't + * count this header nor the padding, but includes the size of i1480 + * header. + */ +struct untd_hdr_cmp { + struct untd_hdr hdr; + u8 padding; +} __attribute__((packed)); + + +/** + * USB Network Transfer Descriptor - First fragment + * + * @hdr.len is the size of the *whole packet* (excluding UNTD + * headers); @fragment_len is the size of the payload (excluding UNTD + * headers, but including i1480 headers). + */ +struct untd_hdr_1st { + struct untd_hdr hdr; + __le16 fragment_len; + u8 padding[3]; +} __attribute__((packed)); + + +/** + * USB Network Transfer Descriptor - Next / Last [Rest] + * + * @hdr.len is the size of the payload, not including headrs. + */ +struct untd_hdr_rst { + struct untd_hdr hdr; + u8 padding; +} __attribute__((packed)); + + +/** + * Transmission context + * + * Wraps all the stuff needed to track a pending/active tx + * operation. + */ +struct i1480u_tx { + struct list_head list_node; + struct i1480u *i1480u; + struct urb *urb; + + struct sk_buff *skb; + struct wlp_tx_hdr *wlp_tx_hdr; + + void *buf; /* if NULL, no new buf was used */ + size_t buf_size; +}; + +/** + * Basic flow control + * + * We maintain a basic flow control counter. "count" how many TX URBs are + * outstanding. Only allow "max" + * TX URBs to be outstanding. If this value is reached the queue will be + * stopped. The queue will be restarted when there are + * "threshold" URBs outstanding. + * Maintain a counter of how many time the TX queue needed to be restarted + * due to the "max" being exceeded and the "threshold" reached again. The + * timestamp "restart_ts" is to keep track from when the counter was last + * queried (see sysfs handling of file wlp_tx_inflight). + */ +struct i1480u_tx_inflight { + atomic_t count; + unsigned long max; + unsigned long threshold; + unsigned long restart_ts; + atomic_t restart_count; +}; + +/** + * Instance of a i1480u WLP interface + * + * Keeps references to the USB device that wraps it, as well as it's + * interface and associated UWB host controller. As well, it also + * keeps a link to the netdevice for integration into the networking + * stack. + * We maintian separate error history for the tx and rx endpoints because + * the implementation does not rely on locking - having one shared + * structure between endpoints may cause problems. Adding locking to the + * implementation will have higher cost than adding a separate structure. + */ +struct i1480u { + struct usb_device *usb_dev; + struct usb_interface *usb_iface; + struct net_device *net_dev; + + spinlock_t lock; + struct net_device_stats stats; + + /* RX context handling */ + struct sk_buff *rx_skb; + struct uwb_dev_addr rx_srcaddr; + size_t rx_untd_pkt_size; + struct i1480u_rx_buf { + struct i1480u *i1480u; /* back pointer */ + struct urb *urb; + struct sk_buff *data; /* i1480u_MAX_RX_PKT_SIZE each */ + } rx_buf[i1480u_RX_BUFS]; /* N bufs */ + + spinlock_t tx_list_lock; /* TX context */ + struct list_head tx_list; + u8 tx_stream; + + struct stats lqe_stats, rssi_stats; /* radio statistics */ + + /* Options we can set from sysfs */ + struct wlp_options options; + struct uwb_notifs_handler uwb_notifs_handler; + struct edc tx_errors; + struct edc rx_errors; + struct wlp wlp; +#ifdef i1480u_FLOW_CONTROL + struct urb *notif_urb; + struct edc notif_edc; /* error density counter */ + u8 notif_buffer[1]; +#endif + struct i1480u_tx_inflight tx_inflight; +}; + +/* Internal interfaces */ +extern void i1480u_rx_cb(struct urb *urb); +extern int i1480u_rx_setup(struct i1480u *); +extern void i1480u_rx_release(struct i1480u *); +extern void i1480u_tx_release(struct i1480u *); +extern int i1480u_xmit_frame(struct wlp *, struct sk_buff *, + struct uwb_dev_addr *); +extern void i1480u_stop_queue(struct wlp *); +extern void i1480u_start_queue(struct wlp *); +extern int i1480u_sysfs_setup(struct i1480u *); +extern void i1480u_sysfs_release(struct i1480u *); + +/* netdev interface */ +extern int i1480u_open(struct net_device *); +extern int i1480u_stop(struct net_device *); +extern int i1480u_hard_start_xmit(struct sk_buff *, struct net_device *); +extern void i1480u_tx_timeout(struct net_device *); +extern int i1480u_set_config(struct net_device *, struct ifmap *); +extern struct net_device_stats *i1480u_get_stats(struct net_device *); +extern int i1480u_change_mtu(struct net_device *, int); +extern void i1480u_uwb_notifs_cb(void *, struct uwb_dev *, enum uwb_notifs); + +/* bandwidth allocation callback */ +extern void i1480u_bw_alloc_cb(struct uwb_rsv *); + +/* Sys FS */ +extern struct attribute_group i1480u_wlp_attr_group; + +#endif /* #ifndef __i1480u_wlp_h__ */ diff --git a/drivers/uwb/i1480/i1480u-wlp/lc.c b/drivers/uwb/i1480/i1480u-wlp/lc.c new file mode 100644 index 000000000000..8341d877407b --- /dev/null +++ b/drivers/uwb/i1480/i1480u-wlp/lc.c @@ -0,0 +1,421 @@ +/* + * WUSB Wire Adapter: WLP interface + * Driver for the Linux Network stack. + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * + * This implements a very simple network driver for the WLP USB + * device that is associated to a UWB (Ultra Wide Band) host. + * + * This is seen as an interface of a composite device. Once the UWB + * host has an association to another WLP capable device, the + * networking interface (aka WLP) can start to send packets back and + * forth. + * + * Limitations: + * + * - Hand cranked; can't ifup the interface until there is an association + * + * - BW allocation very simplistic [see i1480u_mas_set() and callees]. + * + * + * ROADMAP: + * + * ENTRY POINTS (driver model): + * + * i1480u_driver_{exit,init}(): initialization of the driver. + * + * i1480u_probe(): called by the driver code when a device + * matching 'i1480u_id_table' is connected. + * + * This allocs a netdev instance, inits with + * i1480u_add(), then registers_netdev(). + * i1480u_init() + * i1480u_add() + * + * i1480u_disconnect(): device has been disconnected/module + * is being removed. + * i1480u_rm() + */ +#include <linux/version.h> +#include <linux/if_arp.h> +#include <linux/etherdevice.h> +#include <linux/uwb/debug.h> +#include "i1480u-wlp.h" + + + +static inline +void i1480u_init(struct i1480u *i1480u) +{ + /* nothing so far... doesn't it suck? */ + spin_lock_init(&i1480u->lock); + INIT_LIST_HEAD(&i1480u->tx_list); + spin_lock_init(&i1480u->tx_list_lock); + wlp_options_init(&i1480u->options); + edc_init(&i1480u->tx_errors); + edc_init(&i1480u->rx_errors); +#ifdef i1480u_FLOW_CONTROL + edc_init(&i1480u->notif_edc); +#endif + stats_init(&i1480u->lqe_stats); + stats_init(&i1480u->rssi_stats); + wlp_init(&i1480u->wlp); +} + +/** + * Fill WLP device information structure + * + * The structure will contain a few character arrays, each ending with a + * null terminated string. Each string has to fit (excluding terminating + * character) into a specified range obtained from the WLP substack. + * + * It is still not clear exactly how this device information should be + * obtained. Until we find out we use the USB device descriptor as backup, some + * information elements have intuitive mappings, other not. + */ +static +void i1480u_fill_device_info(struct wlp *wlp, struct wlp_device_info *dev_info) +{ + struct i1480u *i1480u = container_of(wlp, struct i1480u, wlp); + struct usb_device *usb_dev = i1480u->usb_dev; + /* Treat device name and model name the same */ + if (usb_dev->descriptor.iProduct) { + usb_string(usb_dev, usb_dev->descriptor.iProduct, + dev_info->name, sizeof(dev_info->name)); + usb_string(usb_dev, usb_dev->descriptor.iProduct, + dev_info->model_name, sizeof(dev_info->model_name)); + } + if (usb_dev->descriptor.iManufacturer) + usb_string(usb_dev, usb_dev->descriptor.iManufacturer, + dev_info->manufacturer, + sizeof(dev_info->manufacturer)); + scnprintf(dev_info->model_nr, sizeof(dev_info->model_nr), "%04x", + __le16_to_cpu(usb_dev->descriptor.bcdDevice)); + if (usb_dev->descriptor.iSerialNumber) + usb_string(usb_dev, usb_dev->descriptor.iSerialNumber, + dev_info->serial, sizeof(dev_info->serial)); + /* FIXME: where should we obtain category? */ + dev_info->prim_dev_type.category = cpu_to_le16(WLP_DEV_CAT_OTHER); + /* FIXME: Complete OUI and OUIsubdiv attributes */ +} + +#ifdef i1480u_FLOW_CONTROL +/** + * Callback for the notification endpoint + * + * This mostly controls the xon/xoff protocol. In case of hard error, + * we stop the queue. If not, we always retry. + */ +static +void i1480u_notif_cb(struct urb *urb, struct pt_regs *regs) +{ + struct i1480u *i1480u = urb->context; + struct usb_interface *usb_iface = i1480u->usb_iface; + struct device *dev = &usb_iface->dev; + int result; + + switch (urb->status) { + case 0: /* Got valid data, do xon/xoff */ + switch (i1480u->notif_buffer[0]) { + case 'N': + dev_err(dev, "XOFF STOPPING queue at %lu\n", jiffies); + netif_stop_queue(i1480u->net_dev); + break; + case 'A': + dev_err(dev, "XON STARTING queue at %lu\n", jiffies); + netif_start_queue(i1480u->net_dev); + break; + default: + dev_err(dev, "NEP: unknown data 0x%02hhx\n", + i1480u->notif_buffer[0]); + } + break; + case -ECONNRESET: /* Controlled situation ... */ + case -ENOENT: /* we killed the URB... */ + dev_err(dev, "NEP: URB reset/noent %d\n", urb->status); + goto error; + case -ESHUTDOWN: /* going away! */ + dev_err(dev, "NEP: URB down %d\n", urb->status); + goto error; + default: /* Retry unless it gets ugly */ + if (edc_inc(&i1480u->notif_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "NEP: URB max acceptable errors " + "exceeded; resetting device\n"); + goto error_reset; + } + dev_err(dev, "NEP: URB error %d\n", urb->status); + break; + } + result = usb_submit_urb(urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "NEP: Can't resubmit URB: %d; resetting device\n", + result); + goto error_reset; + } + return; + +error_reset: + usb_dev_reset_delayed(i1480u->usb_dev); +error: + netif_stop_queue(i1480u->net_dev); + return; +} +#endif + +static +int i1480u_add(struct i1480u *i1480u, struct usb_interface *iface) +{ + int result = -ENODEV; + struct wlp *wlp = &i1480u->wlp; + struct usb_device *usb_dev = interface_to_usbdev(iface); + struct net_device *net_dev = i1480u->net_dev; + struct uwb_rc *rc; + struct uwb_dev *uwb_dev; +#ifdef i1480u_FLOW_CONTROL + struct usb_endpoint_descriptor *epd; +#endif + + i1480u->usb_dev = usb_get_dev(usb_dev); + i1480u->usb_iface = iface; + rc = uwb_rc_get_by_grandpa(&i1480u->usb_dev->dev); + if (rc == NULL) { + dev_err(&iface->dev, "Cannot get associated UWB Radio " + "Controller\n"); + goto out; + } + wlp->xmit_frame = i1480u_xmit_frame; + wlp->fill_device_info = i1480u_fill_device_info; + wlp->stop_queue = i1480u_stop_queue; + wlp->start_queue = i1480u_start_queue; + result = wlp_setup(wlp, rc); + if (result < 0) { + dev_err(&iface->dev, "Cannot setup WLP\n"); + goto error_wlp_setup; + } + result = 0; + ether_setup(net_dev); /* make it an etherdevice */ + uwb_dev = &rc->uwb_dev; + /* FIXME: hookup address change notifications? */ + + memcpy(net_dev->dev_addr, uwb_dev->mac_addr.data, + sizeof(net_dev->dev_addr)); + + net_dev->hard_header_len = sizeof(struct untd_hdr_cmp) + + sizeof(struct wlp_tx_hdr) + + WLP_DATA_HLEN + + ETH_HLEN; + net_dev->mtu = 3500; + net_dev->tx_queue_len = 20; /* FIXME: maybe use 1000? */ + +/* net_dev->flags &= ~IFF_BROADCAST; FIXME: BUG in firmware */ + /* FIXME: multicast disabled */ + net_dev->flags &= ~IFF_MULTICAST; + net_dev->features &= ~NETIF_F_SG; + net_dev->features &= ~NETIF_F_FRAGLIST; + /* All NETIF_F_*_CSUM disabled */ + net_dev->features |= NETIF_F_HIGHDMA; + net_dev->watchdog_timeo = 5*HZ; /* FIXME: a better default? */ + + net_dev->open = i1480u_open; + net_dev->stop = i1480u_stop; + net_dev->hard_start_xmit = i1480u_hard_start_xmit; + net_dev->tx_timeout = i1480u_tx_timeout; + net_dev->get_stats = i1480u_get_stats; + net_dev->set_config = i1480u_set_config; + net_dev->change_mtu = i1480u_change_mtu; + +#ifdef i1480u_FLOW_CONTROL + /* Notification endpoint setup (submitted when we open the device) */ + i1480u->notif_urb = usb_alloc_urb(0, GFP_KERNEL); + if (i1480u->notif_urb == NULL) { + dev_err(&iface->dev, "Unable to allocate notification URB\n"); + result = -ENOMEM; + goto error_urb_alloc; + } + epd = &iface->cur_altsetting->endpoint[0].desc; + usb_fill_int_urb(i1480u->notif_urb, usb_dev, + usb_rcvintpipe(usb_dev, epd->bEndpointAddress), + i1480u->notif_buffer, sizeof(i1480u->notif_buffer), + i1480u_notif_cb, i1480u, epd->bInterval); + +#endif + + i1480u->tx_inflight.max = i1480u_TX_INFLIGHT_MAX; + i1480u->tx_inflight.threshold = i1480u_TX_INFLIGHT_THRESHOLD; + i1480u->tx_inflight.restart_ts = jiffies; + usb_set_intfdata(iface, i1480u); + return result; + +#ifdef i1480u_FLOW_CONTROL +error_urb_alloc: +#endif + wlp_remove(wlp); +error_wlp_setup: + uwb_rc_put(rc); +out: + usb_put_dev(i1480u->usb_dev); + return result; +} + +static void i1480u_rm(struct i1480u *i1480u) +{ + struct uwb_rc *rc = i1480u->wlp.rc; + usb_set_intfdata(i1480u->usb_iface, NULL); +#ifdef i1480u_FLOW_CONTROL + usb_kill_urb(i1480u->notif_urb); + usb_free_urb(i1480u->notif_urb); +#endif + wlp_remove(&i1480u->wlp); + uwb_rc_put(rc); + usb_put_dev(i1480u->usb_dev); +} + +/** Just setup @net_dev's i1480u private data */ +static void i1480u_netdev_setup(struct net_device *net_dev) +{ + struct i1480u *i1480u = netdev_priv(net_dev); + /* Initialize @i1480u */ + memset(i1480u, 0, sizeof(*i1480u)); + i1480u_init(i1480u); +} + +/** + * Probe a i1480u interface and register it + * + * @iface: USB interface to link to + * @id: USB class/subclass/protocol id + * @returns: 0 if ok, < 0 errno code on error. + * + * Does basic housekeeping stuff and then allocs a netdev with space + * for the i1480u data. Initializes, registers in i1480u, registers in + * netdev, ready to go. + */ +static int i1480u_probe(struct usb_interface *iface, + const struct usb_device_id *id) +{ + int result; + struct net_device *net_dev; + struct device *dev = &iface->dev; + struct i1480u *i1480u; + + /* Allocate instance [calls i1480u_netdev_setup() on it] */ + result = -ENOMEM; + net_dev = alloc_netdev(sizeof(*i1480u), "wlp%d", i1480u_netdev_setup); + if (net_dev == NULL) { + dev_err(dev, "no memory for network device instance\n"); + goto error_alloc_netdev; + } + SET_NETDEV_DEV(net_dev, dev); + i1480u = netdev_priv(net_dev); + i1480u->net_dev = net_dev; + result = i1480u_add(i1480u, iface); /* Now setup all the wlp stuff */ + if (result < 0) { + dev_err(dev, "cannot add i1480u device: %d\n", result); + goto error_i1480u_add; + } + result = register_netdev(net_dev); /* Okey dokey, bring it up */ + if (result < 0) { + dev_err(dev, "cannot register network device: %d\n", result); + goto error_register_netdev; + } + i1480u_sysfs_setup(i1480u); + if (result < 0) + goto error_sysfs_init; + return 0; + +error_sysfs_init: + unregister_netdev(net_dev); +error_register_netdev: + i1480u_rm(i1480u); +error_i1480u_add: + free_netdev(net_dev); +error_alloc_netdev: + return result; +} + + +/** + * Disconect a i1480u from the system. + * + * i1480u_stop() has been called before, so al the rx and tx contexts + * have been taken down already. Make sure the queue is stopped, + * unregister netdev and i1480u, free and kill. + */ +static void i1480u_disconnect(struct usb_interface *iface) +{ + struct i1480u *i1480u; + struct net_device *net_dev; + + i1480u = usb_get_intfdata(iface); + net_dev = i1480u->net_dev; + netif_stop_queue(net_dev); +#ifdef i1480u_FLOW_CONTROL + usb_kill_urb(i1480u->notif_urb); +#endif + i1480u_sysfs_release(i1480u); + unregister_netdev(net_dev); + i1480u_rm(i1480u); + free_netdev(net_dev); +} + +static struct usb_device_id i1480u_id_table[] = { + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE \ + | USB_DEVICE_ID_MATCH_DEV_INFO \ + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x8086, + .idProduct = 0x0c3b, + .bDeviceClass = 0xef, + .bDeviceSubClass = 0x02, + .bDeviceProtocol = 0x02, + .bInterfaceClass = 0xff, + .bInterfaceSubClass = 0xff, + .bInterfaceProtocol = 0xff, + }, + {}, +}; +MODULE_DEVICE_TABLE(usb, i1480u_id_table); + +static struct usb_driver i1480u_driver = { + .name = KBUILD_MODNAME, + .probe = i1480u_probe, + .disconnect = i1480u_disconnect, + .id_table = i1480u_id_table, +}; + +static int __init i1480u_driver_init(void) +{ + return usb_register(&i1480u_driver); +} +module_init(i1480u_driver_init); + + +static void __exit i1480u_driver_exit(void) +{ + usb_deregister(&i1480u_driver); +} +module_exit(i1480u_driver_exit); + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("i1480 Wireless UWB Link WLP networking for USB"); +MODULE_LICENSE("GPL"); diff --git a/drivers/uwb/i1480/i1480u-wlp/netdev.c b/drivers/uwb/i1480/i1480u-wlp/netdev.c new file mode 100644 index 000000000000..66fe07a69c1b --- /dev/null +++ b/drivers/uwb/i1480/i1480u-wlp/netdev.c @@ -0,0 +1,367 @@ +/* + * WUSB Wire Adapter: WLP interface + * Driver for the Linux Network stack. + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * + * Implementation of the netdevice linkage (except tx and rx related stuff). + * + * ROADMAP: + * + * ENTRY POINTS (Net device): + * + * i1480u_open(): Called when we ifconfig up the interface; + * associates to a UWB host controller, reserves + * bandwidth (MAS), sets up RX USB URB and starts + * the queue. + * + * i1480u_stop(): Called when we ifconfig down a interface; + * reverses _open(). + * + * i1480u_set_config(): + */ + +#include <linux/if_arp.h> +#include <linux/etherdevice.h> +#include <linux/uwb/debug.h> +#include "i1480u-wlp.h" + +struct i1480u_cmd_set_ip_mas { + struct uwb_rccb rccb; + struct uwb_dev_addr addr; + u8 stream; + u8 owner; + u8 type; /* enum uwb_drp_type */ + u8 baMAS[32]; +} __attribute__((packed)); + + +static +int i1480u_set_ip_mas( + struct uwb_rc *rc, + const struct uwb_dev_addr *dstaddr, + u8 stream, u8 owner, u8 type, unsigned long *mas) +{ + + int result; + struct i1480u_cmd_set_ip_mas *cmd; + struct uwb_rc_evt_confirm reply; + + result = -ENOMEM; + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + goto error_kzalloc; + cmd->rccb.bCommandType = 0xfd; + cmd->rccb.wCommand = cpu_to_le16(0x000e); + cmd->addr = *dstaddr; + cmd->stream = stream; + cmd->owner = owner; + cmd->type = type; + if (mas == NULL) + memset(cmd->baMAS, 0x00, sizeof(cmd->baMAS)); + else + memcpy(cmd->baMAS, mas, sizeof(cmd->baMAS)); + reply.rceb.bEventType = 0xfd; + reply.rceb.wEvent = cpu_to_le16(0x000e); + result = uwb_rc_cmd(rc, "SET-IP-MAS", &cmd->rccb, sizeof(*cmd), + &reply.rceb, sizeof(reply)); + if (result < 0) + goto error_cmd; + if (reply.bResultCode != UWB_RC_RES_FAIL) { + dev_err(&rc->uwb_dev.dev, + "SET-IP-MAS: command execution failed: %d\n", + reply.bResultCode); + result = -EIO; + } +error_cmd: + kfree(cmd); +error_kzalloc: + return result; +} + +/* + * Inform a WLP interface of a MAS reservation + * + * @rc is assumed refcnted. + */ +/* FIXME: detect if remote device is WLP capable? */ +static int i1480u_mas_set_dev(struct uwb_dev *uwb_dev, struct uwb_rc *rc, + u8 stream, u8 owner, u8 type, unsigned long *mas) +{ + int result = 0; + struct device *dev = &rc->uwb_dev.dev; + + result = i1480u_set_ip_mas(rc, &uwb_dev->dev_addr, stream, owner, + type, mas); + if (result < 0) { + char rcaddrbuf[UWB_ADDR_STRSIZE], devaddrbuf[UWB_ADDR_STRSIZE]; + uwb_dev_addr_print(rcaddrbuf, sizeof(rcaddrbuf), + &rc->uwb_dev.dev_addr); + uwb_dev_addr_print(devaddrbuf, sizeof(devaddrbuf), + &uwb_dev->dev_addr); + dev_err(dev, "Set IP MAS (%s to %s) failed: %d\n", + rcaddrbuf, devaddrbuf, result); + } + return result; +} + +/** + * Called by bandwidth allocator when change occurs in reservation. + * + * @rsv: The reservation that is being established, modified, or + * terminated. + * + * When a reservation is established, modified, or terminated the upper layer + * (WLP here) needs set/update the currently available Media Access Slots + * that can be use for IP traffic. + * + * Our action taken during failure depends on how the reservation is being + * changed: + * - if reservation is being established we do nothing if we cannot set the + * new MAS to be used + * - if reservation is being terminated we revert back to PCA whether the + * SET IP MAS command succeeds or not. + */ +void i1480u_bw_alloc_cb(struct uwb_rsv *rsv) +{ + int result = 0; + struct i1480u *i1480u = rsv->pal_priv; + struct device *dev = &i1480u->usb_iface->dev; + struct uwb_dev *target_dev = rsv->target.dev; + struct uwb_rc *rc = i1480u->wlp.rc; + u8 stream = rsv->stream; + int type = rsv->type; + int is_owner = rsv->owner == &rc->uwb_dev; + unsigned long *bmp = rsv->mas.bm; + + dev_err(dev, "WLP callback called - sending set ip mas\n"); + /*user cannot change options while setting configuration*/ + mutex_lock(&i1480u->options.mutex); + switch (rsv->state) { + case UWB_RSV_STATE_T_ACCEPTED: + case UWB_RSV_STATE_O_ESTABLISHED: + result = i1480u_mas_set_dev(target_dev, rc, stream, is_owner, + type, bmp); + if (result < 0) { + dev_err(dev, "MAS reservation failed: %d\n", result); + goto out; + } + if (is_owner) { + i1480u->options.def_tx_hdr.delivery_id_type = 8 | stream; + i1480u->options.def_tx_hdr.rts_cts = 0; + } + break; + case UWB_RSV_STATE_NONE: + /* revert back to PCA */ + result = i1480u_mas_set_dev(target_dev, rc, stream, is_owner, + type, bmp); + if (result < 0) + dev_err(dev, "MAS reservation failed: %d\n", result); + /* Revert to PCA even though SET IP MAS failed. */ + i1480u->options.def_tx_hdr.delivery_id_type = + i1480u->options.pca_base_priority; + i1480u->options.def_tx_hdr.rts_cts = 1; + break; + default: + dev_err(dev, "unexpected WLP reservation state: %s (%d).\n", + uwb_rsv_state_str(rsv->state), rsv->state); + break; + } +out: + mutex_unlock(&i1480u->options.mutex); + return; +} + +/** + * + * Called on 'ifconfig up' + */ +int i1480u_open(struct net_device *net_dev) +{ + int result; + struct i1480u *i1480u = netdev_priv(net_dev); + struct wlp *wlp = &i1480u->wlp; + struct uwb_rc *rc; + struct device *dev = &i1480u->usb_iface->dev; + + rc = wlp->rc; + result = i1480u_rx_setup(i1480u); /* Alloc RX stuff */ + if (result < 0) + goto error_rx_setup; + netif_wake_queue(net_dev); +#ifdef i1480u_FLOW_CONTROL + result = usb_submit_urb(i1480u->notif_urb, GFP_KERNEL);; + if (result < 0) { + dev_err(dev, "Can't submit notification URB: %d\n", result); + goto error_notif_urb_submit; + } +#endif + i1480u->uwb_notifs_handler.cb = i1480u_uwb_notifs_cb; + i1480u->uwb_notifs_handler.data = i1480u; + if (uwb_bg_joined(rc)) + netif_carrier_on(net_dev); + else + netif_carrier_off(net_dev); + uwb_notifs_register(rc, &i1480u->uwb_notifs_handler); + /* Interface is up with an address, now we can create WSS */ + result = wlp_wss_setup(net_dev, &wlp->wss); + if (result < 0) { + dev_err(dev, "Can't create WSS: %d. \n", result); + goto error_notif_deregister; + } + return 0; +error_notif_deregister: + uwb_notifs_deregister(rc, &i1480u->uwb_notifs_handler); +#ifdef i1480u_FLOW_CONTROL +error_notif_urb_submit: +#endif + netif_stop_queue(net_dev); + i1480u_rx_release(i1480u); +error_rx_setup: + return result; +} + + +/** + * Called on 'ifconfig down' + */ +int i1480u_stop(struct net_device *net_dev) +{ + struct i1480u *i1480u = netdev_priv(net_dev); + struct wlp *wlp = &i1480u->wlp; + struct uwb_rc *rc = wlp->rc; + + BUG_ON(wlp->rc == NULL); + wlp_wss_remove(&wlp->wss); + uwb_notifs_deregister(rc, &i1480u->uwb_notifs_handler); + netif_carrier_off(net_dev); +#ifdef i1480u_FLOW_CONTROL + usb_kill_urb(i1480u->notif_urb); +#endif + netif_stop_queue(net_dev); + i1480u_rx_release(i1480u); + i1480u_tx_release(i1480u); + return 0; +} + + +/** Report statistics */ +struct net_device_stats *i1480u_get_stats(struct net_device *net_dev) +{ + struct i1480u *i1480u = netdev_priv(net_dev); + return &i1480u->stats; +} + + +/** + * + * Change the interface config--we probably don't have to do anything. + */ +int i1480u_set_config(struct net_device *net_dev, struct ifmap *map) +{ + int result; + struct i1480u *i1480u = netdev_priv(net_dev); + BUG_ON(i1480u->wlp.rc == NULL); + result = 0; + return result; +} + +/** + * Change the MTU of the interface + */ +int i1480u_change_mtu(struct net_device *net_dev, int mtu) +{ + static union { + struct wlp_tx_hdr tx; + struct wlp_rx_hdr rx; + } i1480u_all_hdrs; + + if (mtu < ETH_HLEN) /* We encap eth frames */ + return -ERANGE; + if (mtu > 4000 - sizeof(i1480u_all_hdrs)) + return -ERANGE; + net_dev->mtu = mtu; + return 0; +} + + +/** + * Callback function to handle events from UWB + * When we see other devices we know the carrier is ok, + * if we are the only device in the beacon group we set the carrier + * state to off. + * */ +void i1480u_uwb_notifs_cb(void *data, struct uwb_dev *uwb_dev, + enum uwb_notifs event) +{ + struct i1480u *i1480u = data; + struct net_device *net_dev = i1480u->net_dev; + struct device *dev = &i1480u->usb_iface->dev; + switch (event) { + case UWB_NOTIF_BG_JOIN: + netif_carrier_on(net_dev); + dev_info(dev, "Link is up\n"); + break; + case UWB_NOTIF_BG_LEAVE: + netif_carrier_off(net_dev); + dev_info(dev, "Link is down\n"); + break; + default: + dev_err(dev, "don't know how to handle event %d from uwb\n", + event); + } +} + +/** + * Stop the network queue + * + * Enable WLP substack to stop network queue. We also set the flow control + * threshold at this time to prevent the flow control from restarting the + * queue. + * + * we are loosing the current threshold value here ... FIXME? + */ +void i1480u_stop_queue(struct wlp *wlp) +{ + struct i1480u *i1480u = container_of(wlp, struct i1480u, wlp); + struct net_device *net_dev = i1480u->net_dev; + i1480u->tx_inflight.threshold = 0; + netif_stop_queue(net_dev); +} + +/** + * Start the network queue + * + * Enable WLP substack to start network queue. Also re-enable the flow + * control to manage the queue again. + * + * We re-enable the flow control by storing the default threshold in the + * flow control threshold. This means that if the user modified the + * threshold before the queue was stopped and restarted that information + * will be lost. FIXME? + */ +void i1480u_start_queue(struct wlp *wlp) +{ + struct i1480u *i1480u = container_of(wlp, struct i1480u, wlp); + struct net_device *net_dev = i1480u->net_dev; + i1480u->tx_inflight.threshold = i1480u_TX_INFLIGHT_THRESHOLD; + netif_start_queue(net_dev); +} diff --git a/drivers/uwb/i1480/i1480u-wlp/rx.c b/drivers/uwb/i1480/i1480u-wlp/rx.c new file mode 100644 index 000000000000..6161772e9f76 --- /dev/null +++ b/drivers/uwb/i1480/i1480u-wlp/rx.c @@ -0,0 +1,491 @@ +/* + * WUSB Wire Adapter: WLP interface + * Driver for the Linux Network stack. + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * i1480u's RX handling is simple. i1480u will send the received + * network packets broken up in fragments; 1 to N fragments make a + * packet, we assemble them together and deliver the packet with netif_rx(). + * + * Beacuse each USB transfer is a *single* fragment (except when the + * transfer contains a first fragment), each URB called thus + * back contains one or two fragments. So we queue N URBs, each with its own + * fragment buffer. When a URB is done, we process it (adding to the + * current skb from the fragment buffer until complete). Once + * processed, we requeue the URB. There is always a bunch of URBs + * ready to take data, so the intergap should be minimal. + * + * An URB's transfer buffer is the data field of a socket buffer. This + * reduces copying as data can be passed directly to network layer. If a + * complete packet or 1st fragment is received the URB's transfer buffer is + * taken away from it and used to send data to the network layer. In this + * case a new transfer buffer is allocated to the URB before being requeued. + * If a "NEXT" or "LAST" fragment is received, the fragment contents is + * appended to the RX packet under construction and the transfer buffer + * is reused. To be able to use this buffer to assemble complete packets + * we set each buffer's size to that of the MAX ethernet packet that can + * be received. There is thus room for improvement in memory usage. + * + * When the max tx fragment size increases, we should be able to read + * data into the skbs directly with very simple code. + * + * ROADMAP: + * + * ENTRY POINTS: + * + * i1480u_rx_setup(): setup RX context [from i1480u_open()] + * + * i1480u_rx_release(): release RX context [from i1480u_stop()] + * + * i1480u_rx_cb(): called when the RX USB URB receives a + * packet. It removes the header and pushes it up + * the Linux netdev stack with netif_rx(). + * + * i1480u_rx_buffer() + * i1480u_drop() and i1480u_fix() + * i1480u_skb_deliver + * + */ + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include "i1480u-wlp.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + + +/** + * Setup the RX context + * + * Each URB is provided with a transfer_buffer that is the data field + * of a new socket buffer. + */ +int i1480u_rx_setup(struct i1480u *i1480u) +{ + int result, cnt; + struct device *dev = &i1480u->usb_iface->dev; + struct net_device *net_dev = i1480u->net_dev; + struct usb_endpoint_descriptor *epd; + struct sk_buff *skb; + + /* Alloc RX stuff */ + i1480u->rx_skb = NULL; /* not in process of receiving packet */ + result = -ENOMEM; + epd = &i1480u->usb_iface->cur_altsetting->endpoint[1].desc; + for (cnt = 0; cnt < i1480u_RX_BUFS; cnt++) { + struct i1480u_rx_buf *rx_buf = &i1480u->rx_buf[cnt]; + rx_buf->i1480u = i1480u; + skb = dev_alloc_skb(i1480u_MAX_RX_PKT_SIZE); + if (!skb) { + dev_err(dev, + "RX: cannot allocate RX buffer %d\n", cnt); + result = -ENOMEM; + goto error; + } + skb->dev = net_dev; + skb->ip_summed = CHECKSUM_NONE; + skb_reserve(skb, 2); + rx_buf->data = skb; + rx_buf->urb = usb_alloc_urb(0, GFP_KERNEL); + if (unlikely(rx_buf->urb == NULL)) { + dev_err(dev, "RX: cannot allocate URB %d\n", cnt); + result = -ENOMEM; + goto error; + } + usb_fill_bulk_urb(rx_buf->urb, i1480u->usb_dev, + usb_rcvbulkpipe(i1480u->usb_dev, epd->bEndpointAddress), + rx_buf->data->data, i1480u_MAX_RX_PKT_SIZE - 2, + i1480u_rx_cb, rx_buf); + result = usb_submit_urb(rx_buf->urb, GFP_NOIO); + if (unlikely(result < 0)) { + dev_err(dev, "RX: cannot submit URB %d: %d\n", + cnt, result); + goto error; + } + } + return 0; + +error: + i1480u_rx_release(i1480u); + return result; +} + + +/** Release resources associated to the rx context */ +void i1480u_rx_release(struct i1480u *i1480u) +{ + int cnt; + for (cnt = 0; cnt < i1480u_RX_BUFS; cnt++) { + if (i1480u->rx_buf[cnt].data) + dev_kfree_skb(i1480u->rx_buf[cnt].data); + if (i1480u->rx_buf[cnt].urb) { + usb_kill_urb(i1480u->rx_buf[cnt].urb); + usb_free_urb(i1480u->rx_buf[cnt].urb); + } + } + if (i1480u->rx_skb != NULL) + dev_kfree_skb(i1480u->rx_skb); +} + +static +void i1480u_rx_unlink_urbs(struct i1480u *i1480u) +{ + int cnt; + for (cnt = 0; cnt < i1480u_RX_BUFS; cnt++) { + if (i1480u->rx_buf[cnt].urb) + usb_unlink_urb(i1480u->rx_buf[cnt].urb); + } +} + +/** Fix an out-of-sequence packet */ +#define i1480u_fix(i1480u, msg...) \ +do { \ + if (printk_ratelimit()) \ + dev_err(&i1480u->usb_iface->dev, msg); \ + dev_kfree_skb_irq(i1480u->rx_skb); \ + i1480u->rx_skb = NULL; \ + i1480u->rx_untd_pkt_size = 0; \ +} while (0) + + +/** Drop an out-of-sequence packet */ +#define i1480u_drop(i1480u, msg...) \ +do { \ + if (printk_ratelimit()) \ + dev_err(&i1480u->usb_iface->dev, msg); \ + i1480u->stats.rx_dropped++; \ +} while (0) + + + + +/** Finalizes setting up the SKB and delivers it + * + * We first pass the incoming frame to WLP substack for verification. It + * may also be a WLP association frame in which case WLP will take over the + * processing. If WLP does not take it over it will still verify it, if the + * frame is invalid the skb will be freed by WLP and we will not continue + * parsing. + * */ +static +void i1480u_skb_deliver(struct i1480u *i1480u) +{ + int should_parse; + struct net_device *net_dev = i1480u->net_dev; + struct device *dev = &i1480u->usb_iface->dev; + + d_printf(6, dev, "RX delivered pre skb(%p), %u bytes\n", + i1480u->rx_skb, i1480u->rx_skb->len); + d_dump(7, dev, i1480u->rx_skb->data, i1480u->rx_skb->len); + should_parse = wlp_receive_frame(dev, &i1480u->wlp, i1480u->rx_skb, + &i1480u->rx_srcaddr); + if (!should_parse) + goto out; + i1480u->rx_skb->protocol = eth_type_trans(i1480u->rx_skb, net_dev); + d_printf(5, dev, "RX delivered skb(%p), %u bytes\n", + i1480u->rx_skb, i1480u->rx_skb->len); + d_dump(7, dev, i1480u->rx_skb->data, + i1480u->rx_skb->len > 72? 72 : i1480u->rx_skb->len); + i1480u->stats.rx_packets++; + i1480u->stats.rx_bytes += i1480u->rx_untd_pkt_size; + net_dev->last_rx = jiffies; + /* FIXME: flow control: check netif_rx() retval */ + + netif_rx(i1480u->rx_skb); /* deliver */ +out: + i1480u->rx_skb = NULL; + i1480u->rx_untd_pkt_size = 0; +} + + +/** + * Process a buffer of data received from the USB RX endpoint + * + * First fragment arrives with next or last fragment. All other fragments + * arrive alone. + * + * /me hates long functions. + */ +static +void i1480u_rx_buffer(struct i1480u_rx_buf *rx_buf) +{ + unsigned pkt_completed = 0; /* !0 when we got all pkt fragments */ + size_t untd_hdr_size, untd_frg_size; + size_t i1480u_hdr_size; + struct wlp_rx_hdr *i1480u_hdr = NULL; + + struct i1480u *i1480u = rx_buf->i1480u; + struct sk_buff *skb = rx_buf->data; + int size_left = rx_buf->urb->actual_length; + void *ptr = rx_buf->urb->transfer_buffer; /* also rx_buf->data->data */ + struct untd_hdr *untd_hdr; + + struct net_device *net_dev = i1480u->net_dev; + struct device *dev = &i1480u->usb_iface->dev; + struct sk_buff *new_skb; + +#if 0 + dev_fnstart(dev, + "(i1480u %p ptr %p size_left %zu)\n", i1480u, ptr, size_left); + dev_err(dev, "RX packet, %zu bytes\n", size_left); + dump_bytes(dev, ptr, size_left); +#endif + i1480u_hdr_size = sizeof(struct wlp_rx_hdr); + + while (size_left > 0) { + if (pkt_completed) { + i1480u_drop(i1480u, "RX: fragment follows completed" + "packet in same buffer. Dropping\n"); + break; + } + untd_hdr = ptr; + if (size_left < sizeof(*untd_hdr)) { /* Check the UNTD header */ + i1480u_drop(i1480u, "RX: short UNTD header! Dropping\n"); + goto out; + } + if (unlikely(untd_hdr->rx_tx == 0)) { /* Paranoia: TX set? */ + i1480u_drop(i1480u, "RX: TX bit set! Dropping\n"); + goto out; + } + if (untd_hdr->reserved1) { + i1480u_drop(i1480u, "RX: reserved1 is not 0 (but %u)! " + "Dropping\n", untd_hdr->reserved1); + goto out; + } + switch (untd_hdr->type) { /* Check the UNTD header type */ + case i1480u_PKT_FRAG_1ST: { + struct untd_hdr_1st *untd_hdr_1st = (void *) untd_hdr; + dev_dbg(dev, "1st fragment\n"); + untd_hdr_size = sizeof(struct untd_hdr_1st); + if (i1480u->rx_skb != NULL) + i1480u_fix(i1480u, "RX: 1st fragment out of " + "sequence! Fixing\n"); + if (size_left < untd_hdr_size + i1480u_hdr_size) { + i1480u_drop(i1480u, "RX: short 1st fragment! " + "Dropping\n"); + goto out; + } + i1480u->rx_untd_pkt_size = le16_to_cpu(untd_hdr->len) + - i1480u_hdr_size; + untd_frg_size = le16_to_cpu(untd_hdr_1st->fragment_len); + if (size_left < untd_hdr_size + untd_frg_size) { + i1480u_drop(i1480u, + "RX: short payload! Dropping\n"); + goto out; + } + i1480u->rx_skb = skb; + i1480u_hdr = (void *) untd_hdr_1st + untd_hdr_size; + i1480u->rx_srcaddr = i1480u_hdr->srcaddr; + skb_put(i1480u->rx_skb, untd_hdr_size + untd_frg_size); + skb_pull(i1480u->rx_skb, untd_hdr_size + i1480u_hdr_size); + stats_add_sample(&i1480u->lqe_stats, (s8) i1480u_hdr->LQI - 7); + stats_add_sample(&i1480u->rssi_stats, i1480u_hdr->RSSI + 18); + rx_buf->data = NULL; /* need to create new buffer */ + break; + } + case i1480u_PKT_FRAG_NXT: { + dev_dbg(dev, "nxt fragment\n"); + untd_hdr_size = sizeof(struct untd_hdr_rst); + if (i1480u->rx_skb == NULL) { + i1480u_drop(i1480u, "RX: next fragment out of " + "sequence! Dropping\n"); + goto out; + } + if (size_left < untd_hdr_size) { + i1480u_drop(i1480u, "RX: short NXT fragment! " + "Dropping\n"); + goto out; + } + untd_frg_size = le16_to_cpu(untd_hdr->len); + if (size_left < untd_hdr_size + untd_frg_size) { + i1480u_drop(i1480u, + "RX: short payload! Dropping\n"); + goto out; + } + memmove(skb_put(i1480u->rx_skb, untd_frg_size), + ptr + untd_hdr_size, untd_frg_size); + break; + } + case i1480u_PKT_FRAG_LST: { + dev_dbg(dev, "Lst fragment\n"); + untd_hdr_size = sizeof(struct untd_hdr_rst); + if (i1480u->rx_skb == NULL) { + i1480u_drop(i1480u, "RX: last fragment out of " + "sequence! Dropping\n"); + goto out; + } + if (size_left < untd_hdr_size) { + i1480u_drop(i1480u, "RX: short LST fragment! " + "Dropping\n"); + goto out; + } + untd_frg_size = le16_to_cpu(untd_hdr->len); + if (size_left < untd_frg_size + untd_hdr_size) { + i1480u_drop(i1480u, + "RX: short payload! Dropping\n"); + goto out; + } + memmove(skb_put(i1480u->rx_skb, untd_frg_size), + ptr + untd_hdr_size, untd_frg_size); + pkt_completed = 1; + break; + } + case i1480u_PKT_FRAG_CMP: { + dev_dbg(dev, "cmp fragment\n"); + untd_hdr_size = sizeof(struct untd_hdr_cmp); + if (i1480u->rx_skb != NULL) + i1480u_fix(i1480u, "RX: fix out-of-sequence CMP" + " fragment!\n"); + if (size_left < untd_hdr_size + i1480u_hdr_size) { + i1480u_drop(i1480u, "RX: short CMP fragment! " + "Dropping\n"); + goto out; + } + i1480u->rx_untd_pkt_size = le16_to_cpu(untd_hdr->len); + untd_frg_size = i1480u->rx_untd_pkt_size; + if (size_left < i1480u->rx_untd_pkt_size + untd_hdr_size) { + i1480u_drop(i1480u, + "RX: short payload! Dropping\n"); + goto out; + } + i1480u->rx_skb = skb; + i1480u_hdr = (void *) untd_hdr + untd_hdr_size; + i1480u->rx_srcaddr = i1480u_hdr->srcaddr; + stats_add_sample(&i1480u->lqe_stats, (s8) i1480u_hdr->LQI - 7); + stats_add_sample(&i1480u->rssi_stats, i1480u_hdr->RSSI + 18); + skb_put(i1480u->rx_skb, untd_hdr_size + i1480u->rx_untd_pkt_size); + skb_pull(i1480u->rx_skb, untd_hdr_size + i1480u_hdr_size); + rx_buf->data = NULL; /* for hand off skb to network stack */ + pkt_completed = 1; + i1480u->rx_untd_pkt_size -= i1480u_hdr_size; /* accurate stat */ + break; + } + default: + i1480u_drop(i1480u, "RX: unknown packet type %u! " + "Dropping\n", untd_hdr->type); + goto out; + } + size_left -= untd_hdr_size + untd_frg_size; + if (size_left > 0) + ptr += untd_hdr_size + untd_frg_size; + } + if (pkt_completed) + i1480u_skb_deliver(i1480u); +out: + /* recreate needed RX buffers*/ + if (rx_buf->data == NULL) { + /* buffer is being used to receive packet, create new */ + new_skb = dev_alloc_skb(i1480u_MAX_RX_PKT_SIZE); + if (!new_skb) { + if (printk_ratelimit()) + dev_err(dev, + "RX: cannot allocate RX buffer\n"); + } else { + new_skb->dev = net_dev; + new_skb->ip_summed = CHECKSUM_NONE; + skb_reserve(new_skb, 2); + rx_buf->data = new_skb; + } + } + return; +} + + +/** + * Called when an RX URB has finished receiving or has found some kind + * of error condition. + * + * LIMITATIONS: + * + * - We read USB-transfers, each transfer contains a SINGLE fragment + * (can contain a complete packet, or a 1st, next, or last fragment + * of a packet). + * Looks like a transfer can contain more than one fragment (07/18/06) + * + * - Each transfer buffer is the size of the maximum packet size (minus + * headroom), i1480u_MAX_PKT_SIZE - 2 + * + * - We always read the full USB-transfer, no partials. + * + * - Each transfer is read directly into a skb. This skb will be used to + * send data to the upper layers if it is the first fragment or a complete + * packet. In the other cases the data will be copied from the skb to + * another skb that is being prepared for the upper layers from a prev + * first fragment. + * + * It is simply too much of a pain. Gosh, there should be a unified + * SG infrastructure for *everything* [so that I could declare a SG + * buffer, pass it to USB for receiving, append some space to it if + * I wish, receive more until I have the whole chunk, adapt + * pointers on each fragment to remove hardware headers and then + * attach that to an skbuff and netif_rx()]. + */ +void i1480u_rx_cb(struct urb *urb) +{ + int result; + int do_parse_buffer = 1; + struct i1480u_rx_buf *rx_buf = urb->context; + struct i1480u *i1480u = rx_buf->i1480u; + struct device *dev = &i1480u->usb_iface->dev; + unsigned long flags; + u8 rx_buf_idx = rx_buf - i1480u->rx_buf; + + switch (urb->status) { + case 0: + break; + case -ECONNRESET: /* Not an error, but a controlled situation; */ + case -ENOENT: /* (we killed the URB)...so, no broadcast */ + case -ESHUTDOWN: /* going away! */ + dev_err(dev, "RX URB[%u]: goind down %d\n", + rx_buf_idx, urb->status); + goto error; + default: + dev_err(dev, "RX URB[%u]: unknown status %d\n", + rx_buf_idx, urb->status); + if (edc_inc(&i1480u->rx_errors, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "RX: max acceptable errors exceeded," + " resetting device.\n"); + i1480u_rx_unlink_urbs(i1480u); + usb_dev_reset_delayed(i1480u->usb_dev); + goto error; + } + do_parse_buffer = 0; + break; + } + spin_lock_irqsave(&i1480u->lock, flags); + /* chew the data fragments, extract network packets */ + if (do_parse_buffer) { + i1480u_rx_buffer(rx_buf); + if (rx_buf->data) { + rx_buf->urb->transfer_buffer = rx_buf->data->data; + result = usb_submit_urb(rx_buf->urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "RX URB[%u]: cannot submit %d\n", + rx_buf_idx, result); + } + } + } + spin_unlock_irqrestore(&i1480u->lock, flags); +error: + return; +} + diff --git a/drivers/uwb/i1480/i1480u-wlp/sysfs.c b/drivers/uwb/i1480/i1480u-wlp/sysfs.c new file mode 100644 index 000000000000..f0b8079d5ba0 --- /dev/null +++ b/drivers/uwb/i1480/i1480u-wlp/sysfs.c @@ -0,0 +1,446 @@ +/* + * WUSB Wire Adapter: WLP interface + * Sysfs interfaces + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/uwb/debug.h> +#include <linux/device.h> +#include "i1480u-wlp.h" + + +/** + * + * @dev: Class device from the net_device; assumed refcnted. + * + * Yes, I don't lock--we assume it is refcounted and I am getting a + * single byte value that is kind of atomic to read. + */ +ssize_t uwb_phy_rate_show(const struct wlp_options *options, char *buf) +{ + return sprintf(buf, + "%u\n" + "\n" + "# echo UWB-PHY-RATE\n" + "#\n" + "# 0 - 53.3 Mbps\n" + "# 1 - 80 Mbps\n" + "# 2 - 106 Mbps\n" + "# 3 - 160 Mbps\n" + "# 4 - 200 Mbps\n" + "# 5 - 320 Mbps\n" + "# 6 - 400 Mbps\n" + "# 7 - 480 Mbps\n", + options->def_tx_hdr.phy_rate); +} +EXPORT_SYMBOL_GPL(uwb_phy_rate_show); + + +ssize_t uwb_phy_rate_store(struct wlp_options *options, + const char *buf, size_t size) +{ + ssize_t result; + unsigned rate; + + result = sscanf(buf, "%u\n", &rate); + if (result != 1) { + result = -EINVAL; + goto out; + } + result = -EINVAL; + if (rate >= UWB_PHY_RATE_INVALID) + goto out; + options->def_tx_hdr.phy_rate = rate; + result = 0; +out: + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(uwb_phy_rate_store); + + +ssize_t uwb_rts_cts_show(const struct wlp_options *options, char *buf) +{ + return sprintf(buf, + "%u\n" + "\n" + "# echo UWB-RTS-CTS\n" + "#\n" + "# 0 - RTS/CTS disabled\n" + "# 1 - RTS/CTS enabled\n", + options->def_tx_hdr.rts_cts); +} +EXPORT_SYMBOL_GPL(uwb_rts_cts_show); + + +ssize_t uwb_rts_cts_store(struct wlp_options *options, + const char *buf, size_t size) +{ + ssize_t result; + unsigned value; + + result = sscanf(buf, "%u\n", &value); + if (result != 1) { + result = -EINVAL; + goto out; + } + result = -EINVAL; + options->def_tx_hdr.rts_cts = value? 1 : 0; + result = 0; +out: + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(uwb_rts_cts_store); + + +ssize_t uwb_ack_policy_show(const struct wlp_options *options, char *buf) +{ + return sprintf(buf, + "%u\n" + "\n" + "# echo ACK-POLICY\n" + "#\n" + "# 0 - No Ack\n" + "# 1 - Immediate Ack\n" + "# 2 - B Ack\n" + "# 2 - B Req Ack\n", + options->def_tx_hdr.ack_pol); +} +EXPORT_SYMBOL_GPL(uwb_ack_policy_show); + + +ssize_t uwb_ack_policy_store(struct wlp_options *options, + const char *buf, size_t size) +{ + ssize_t result; + unsigned value; + + result = sscanf(buf, "%u\n", &value); + if (result != 1 || value > UWB_ACK_B_REQ) { + result = -EINVAL; + goto out; + } + options->def_tx_hdr.ack_pol = value; + result = 0; +out: + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(uwb_ack_policy_store); + + +/** + * Show the PCA base priority. + * + * We can access without locking, as the value is (for now) orthogonal + * to other values. + */ +ssize_t uwb_pca_base_priority_show(const struct wlp_options *options, + char *buf) +{ + return scnprintf(buf, PAGE_SIZE, + "%u\n" + "\n" + "# echo PCA BASE PRIORITY\n" + "#\n" + "# 0 - AC_BE (Best effort)\n" + "# 1 - AC_BK (Background)\n" + "# 2 - AC_BK (Background)\n" + "# 3 - AC_BE (Best Effort)\n" + "# 4 - AC_VI (Video)\n" + "# 5 - AC_VI (Video)\n" + "# 6 - AC_VO (Voice)\n" + "# 7 - AC_VO (Voice)\n", + options->pca_base_priority); +} +EXPORT_SYMBOL_GPL(uwb_pca_base_priority_show); + + +/** + * Set the PCA base priority. + * + * We can access without locking, as the value is (for now) orthogonal + * to other values. + */ +ssize_t uwb_pca_base_priority_store(struct wlp_options *options, + const char *buf, size_t size) +{ + ssize_t result = -EINVAL; + u8 pca_base_priority; + + result = sscanf(buf, "%hhu\n", &pca_base_priority); + if (result != 1) { + result = -EINVAL; + goto out; + } + result = -EINVAL; + if (pca_base_priority >= 8) + goto out; + options->pca_base_priority = pca_base_priority; + /* Update TX header if we are currently using PCA. */ + if (result >= 0 && (options->def_tx_hdr.delivery_id_type & 8) == 0) + options->def_tx_hdr.delivery_id_type = options->pca_base_priority; + result = 0; +out: + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(uwb_pca_base_priority_store); + +/** + * Show current inflight values + * + * Will print the current MAX and THRESHOLD values for the basic flow + * control. In addition it will report how many times the TX queue needed + * to be restarted since the last time this query was made. + */ +static ssize_t wlp_tx_inflight_show(struct i1480u_tx_inflight *inflight, + char *buf) +{ + ssize_t result; + unsigned long sec_elapsed = (jiffies - inflight->restart_ts)/HZ; + unsigned long restart_count = atomic_read(&inflight->restart_count); + + result = scnprintf(buf, PAGE_SIZE, "%lu %lu %d %lu %lu %lu\n" + "#read: threshold max inflight_count restarts " + "seconds restarts/sec\n" + "#write: threshold max\n", + inflight->threshold, inflight->max, + atomic_read(&inflight->count), + restart_count, sec_elapsed, + sec_elapsed == 0 ? 0 : restart_count/sec_elapsed); + inflight->restart_ts = jiffies; + atomic_set(&inflight->restart_count, 0); + return result; +} + +static +ssize_t wlp_tx_inflight_store(struct i1480u_tx_inflight *inflight, + const char *buf, size_t size) +{ + unsigned long in_threshold, in_max; + ssize_t result; + result = sscanf(buf, "%lu %lu", &in_threshold, &in_max); + if (result != 2) + return -EINVAL; + if (in_max <= in_threshold) + return -EINVAL; + inflight->max = in_max; + inflight->threshold = in_threshold; + return size; +} +/* + * Glue (or function adaptors) for accesing info on sysfs + * + * [we need this indirection because the PCI driver does almost the + * same] + * + * Linux 2.6.21 changed how 'struct netdevice' does attributes (from + * having a 'struct class_dev' to having a 'struct device'). That is + * quite of a pain. + * + * So we try to abstract that here. i1480u_SHOW() and i1480u_STORE() + * create adaptors for extracting the 'struct i1480u' from a 'struct + * dev' and calling a function for doing a sysfs operation (as we have + * them factorized already). i1480u_ATTR creates the attribute file + * (CLASS_DEVICE_ATTR or DEVICE_ATTR) and i1480u_ATTR_NAME produces a + * class_device_attr_NAME or device_attr_NAME (for group registration). + */ +#include <linux/version.h> + +#define i1480u_SHOW(name, fn, param) \ +static ssize_t i1480u_show_##name(struct device *dev, \ + struct device_attribute *attr,\ + char *buf) \ +{ \ + struct i1480u *i1480u = netdev_priv(to_net_dev(dev)); \ + return fn(&i1480u->param, buf); \ +} + +#define i1480u_STORE(name, fn, param) \ +static ssize_t i1480u_store_##name(struct device *dev, \ + struct device_attribute *attr,\ + const char *buf, size_t size)\ +{ \ + struct i1480u *i1480u = netdev_priv(to_net_dev(dev)); \ + return fn(&i1480u->param, buf, size); \ +} + +#define i1480u_ATTR(name, perm) static DEVICE_ATTR(name, perm, \ + i1480u_show_##name,\ + i1480u_store_##name) + +#define i1480u_ATTR_SHOW(name) static DEVICE_ATTR(name, \ + S_IRUGO, \ + i1480u_show_##name, NULL) + +#define i1480u_ATTR_NAME(a) (dev_attr_##a) + + +/* + * Sysfs adaptors + */ +i1480u_SHOW(uwb_phy_rate, uwb_phy_rate_show, options); +i1480u_STORE(uwb_phy_rate, uwb_phy_rate_store, options); +i1480u_ATTR(uwb_phy_rate, S_IRUGO | S_IWUSR); + +i1480u_SHOW(uwb_rts_cts, uwb_rts_cts_show, options); +i1480u_STORE(uwb_rts_cts, uwb_rts_cts_store, options); +i1480u_ATTR(uwb_rts_cts, S_IRUGO | S_IWUSR); + +i1480u_SHOW(uwb_ack_policy, uwb_ack_policy_show, options); +i1480u_STORE(uwb_ack_policy, uwb_ack_policy_store, options); +i1480u_ATTR(uwb_ack_policy, S_IRUGO | S_IWUSR); + +i1480u_SHOW(uwb_pca_base_priority, uwb_pca_base_priority_show, options); +i1480u_STORE(uwb_pca_base_priority, uwb_pca_base_priority_store, options); +i1480u_ATTR(uwb_pca_base_priority, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_eda, wlp_eda_show, wlp); +i1480u_STORE(wlp_eda, wlp_eda_store, wlp); +i1480u_ATTR(wlp_eda, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_uuid, wlp_uuid_show, wlp); +i1480u_STORE(wlp_uuid, wlp_uuid_store, wlp); +i1480u_ATTR(wlp_uuid, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_dev_name, wlp_dev_name_show, wlp); +i1480u_STORE(wlp_dev_name, wlp_dev_name_store, wlp); +i1480u_ATTR(wlp_dev_name, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_dev_manufacturer, wlp_dev_manufacturer_show, wlp); +i1480u_STORE(wlp_dev_manufacturer, wlp_dev_manufacturer_store, wlp); +i1480u_ATTR(wlp_dev_manufacturer, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_dev_model_name, wlp_dev_model_name_show, wlp); +i1480u_STORE(wlp_dev_model_name, wlp_dev_model_name_store, wlp); +i1480u_ATTR(wlp_dev_model_name, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_dev_model_nr, wlp_dev_model_nr_show, wlp); +i1480u_STORE(wlp_dev_model_nr, wlp_dev_model_nr_store, wlp); +i1480u_ATTR(wlp_dev_model_nr, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_dev_serial, wlp_dev_serial_show, wlp); +i1480u_STORE(wlp_dev_serial, wlp_dev_serial_store, wlp); +i1480u_ATTR(wlp_dev_serial, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_dev_prim_category, wlp_dev_prim_category_show, wlp); +i1480u_STORE(wlp_dev_prim_category, wlp_dev_prim_category_store, wlp); +i1480u_ATTR(wlp_dev_prim_category, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_dev_prim_OUI, wlp_dev_prim_OUI_show, wlp); +i1480u_STORE(wlp_dev_prim_OUI, wlp_dev_prim_OUI_store, wlp); +i1480u_ATTR(wlp_dev_prim_OUI, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_dev_prim_OUI_sub, wlp_dev_prim_OUI_sub_show, wlp); +i1480u_STORE(wlp_dev_prim_OUI_sub, wlp_dev_prim_OUI_sub_store, wlp); +i1480u_ATTR(wlp_dev_prim_OUI_sub, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_dev_prim_subcat, wlp_dev_prim_subcat_show, wlp); +i1480u_STORE(wlp_dev_prim_subcat, wlp_dev_prim_subcat_store, wlp); +i1480u_ATTR(wlp_dev_prim_subcat, S_IRUGO | S_IWUSR); + +i1480u_SHOW(wlp_neighborhood, wlp_neighborhood_show, wlp); +i1480u_ATTR_SHOW(wlp_neighborhood); + +i1480u_SHOW(wss_activate, wlp_wss_activate_show, wlp.wss); +i1480u_STORE(wss_activate, wlp_wss_activate_store, wlp.wss); +i1480u_ATTR(wss_activate, S_IRUGO | S_IWUSR); + +/* + * Show the (min, max, avg) Line Quality Estimate (LQE, in dB) as over + * the last 256 received WLP frames (ECMA-368 13.3). + * + * [the -7dB that have to be substracted from the LQI to make the LQE + * are already taken into account]. + */ +i1480u_SHOW(wlp_lqe, stats_show, lqe_stats); +i1480u_STORE(wlp_lqe, stats_store, lqe_stats); +i1480u_ATTR(wlp_lqe, S_IRUGO | S_IWUSR); + +/* + * Show the Receive Signal Strength Indicator averaged over all the + * received WLP frames (ECMA-368 13.3). Still is not clear what + * this value is, but is kind of a percentage of the signal strength + * at the antenna. + */ +i1480u_SHOW(wlp_rssi, stats_show, rssi_stats); +i1480u_STORE(wlp_rssi, stats_store, rssi_stats); +i1480u_ATTR(wlp_rssi, S_IRUGO | S_IWUSR); + +/** + * We maintain a basic flow control counter. "count" how many TX URBs are + * outstanding. Only allow "max" + * TX URBs to be outstanding. If this value is reached the queue will be + * stopped. The queue will be restarted when there are + * "threshold" URBs outstanding. + */ +i1480u_SHOW(wlp_tx_inflight, wlp_tx_inflight_show, tx_inflight); +i1480u_STORE(wlp_tx_inflight, wlp_tx_inflight_store, tx_inflight); +i1480u_ATTR(wlp_tx_inflight, S_IRUGO | S_IWUSR); + +static struct attribute *i1480u_attrs[] = { + &i1480u_ATTR_NAME(uwb_phy_rate).attr, + &i1480u_ATTR_NAME(uwb_rts_cts).attr, + &i1480u_ATTR_NAME(uwb_ack_policy).attr, + &i1480u_ATTR_NAME(uwb_pca_base_priority).attr, + &i1480u_ATTR_NAME(wlp_lqe).attr, + &i1480u_ATTR_NAME(wlp_rssi).attr, + &i1480u_ATTR_NAME(wlp_eda).attr, + &i1480u_ATTR_NAME(wlp_uuid).attr, + &i1480u_ATTR_NAME(wlp_dev_name).attr, + &i1480u_ATTR_NAME(wlp_dev_manufacturer).attr, + &i1480u_ATTR_NAME(wlp_dev_model_name).attr, + &i1480u_ATTR_NAME(wlp_dev_model_nr).attr, + &i1480u_ATTR_NAME(wlp_dev_serial).attr, + &i1480u_ATTR_NAME(wlp_dev_prim_category).attr, + &i1480u_ATTR_NAME(wlp_dev_prim_OUI).attr, + &i1480u_ATTR_NAME(wlp_dev_prim_OUI_sub).attr, + &i1480u_ATTR_NAME(wlp_dev_prim_subcat).attr, + &i1480u_ATTR_NAME(wlp_neighborhood).attr, + &i1480u_ATTR_NAME(wss_activate).attr, + &i1480u_ATTR_NAME(wlp_tx_inflight).attr, + NULL, +}; + +static struct attribute_group i1480u_attr_group = { + .name = NULL, /* we want them in the same directory */ + .attrs = i1480u_attrs, +}; + +int i1480u_sysfs_setup(struct i1480u *i1480u) +{ + int result; + struct device *dev = &i1480u->usb_iface->dev; + result = sysfs_create_group(&i1480u->net_dev->dev.kobj, + &i1480u_attr_group); + if (result < 0) + dev_err(dev, "cannot initialize sysfs attributes: %d\n", + result); + return result; +} + + +void i1480u_sysfs_release(struct i1480u *i1480u) +{ + sysfs_remove_group(&i1480u->net_dev->dev.kobj, + &i1480u_attr_group); +} diff --git a/drivers/uwb/i1480/i1480u-wlp/tx.c b/drivers/uwb/i1480/i1480u-wlp/tx.c new file mode 100644 index 000000000000..cf8056738149 --- /dev/null +++ b/drivers/uwb/i1480/i1480u-wlp/tx.c @@ -0,0 +1,638 @@ +/* + * WUSB Wire Adapter: WLP interface + * Deal with TX (massaging data to transmit, handling it) + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Transmission engine. Get an skb, create from that a WLP transmit + * context, add a WLP TX header (which we keep prefilled in the + * device's instance), fill out the target-specific fields and + * fire it. + * + * ROADMAP: + * + * Entry points: + * + * i1480u_tx_release(): called by i1480u_disconnect() to release + * pending tx contexts. + * + * i1480u_tx_cb(): callback for TX contexts (USB URBs) + * i1480u_tx_destroy(): + * + * i1480u_tx_timeout(): called for timeout handling from the + * network stack. + * + * i1480u_hard_start_xmit(): called for transmitting an skb from + * the network stack. Will interact with WLP + * substack to verify and prepare frame. + * i1480u_xmit_frame(): actual transmission on hardware + * + * i1480u_tx_create() Creates TX context + * i1480u_tx_create_1() For packets in 1 fragment + * i1480u_tx_create_n() For packets in >1 fragments + * + * TODO: + * + * - FIXME: rewrite using usb_sg_*(), add asynch support to + * usb_sg_*(). It might not make too much sense as most of + * the times the MTU will be smaller than one page... + */ + +#include "i1480u-wlp.h" +#define D_LOCAL 5 +#include <linux/uwb/debug.h> + +enum { + /* This is only for Next and Last TX packets */ + i1480u_MAX_PL_SIZE = i1480u_MAX_FRG_SIZE + - sizeof(struct untd_hdr_rst), +}; + +/** Free resources allocated to a i1480u tx context. */ +static +void i1480u_tx_free(struct i1480u_tx *wtx) +{ + kfree(wtx->buf); + if (wtx->skb) + dev_kfree_skb_irq(wtx->skb); + usb_free_urb(wtx->urb); + kfree(wtx); +} + +static +void i1480u_tx_destroy(struct i1480u *i1480u, struct i1480u_tx *wtx) +{ + unsigned long flags; + spin_lock_irqsave(&i1480u->tx_list_lock, flags); /* not active any more */ + list_del(&wtx->list_node); + i1480u_tx_free(wtx); + spin_unlock_irqrestore(&i1480u->tx_list_lock, flags); +} + +static +void i1480u_tx_unlink_urbs(struct i1480u *i1480u) +{ + unsigned long flags; + struct i1480u_tx *wtx, *next; + + spin_lock_irqsave(&i1480u->tx_list_lock, flags); + list_for_each_entry_safe(wtx, next, &i1480u->tx_list, list_node) { + usb_unlink_urb(wtx->urb); + } + spin_unlock_irqrestore(&i1480u->tx_list_lock, flags); +} + + +/** + * Callback for a completed tx USB URB. + * + * TODO: + * + * - FIXME: recover errors more gracefully + * - FIXME: handle NAKs (I dont think they come here) for flow ctl + */ +static +void i1480u_tx_cb(struct urb *urb) +{ + struct i1480u_tx *wtx = urb->context; + struct i1480u *i1480u = wtx->i1480u; + struct net_device *net_dev = i1480u->net_dev; + struct device *dev = &i1480u->usb_iface->dev; + unsigned long flags; + + switch (urb->status) { + case 0: + spin_lock_irqsave(&i1480u->lock, flags); + i1480u->stats.tx_packets++; + i1480u->stats.tx_bytes += urb->actual_length; + spin_unlock_irqrestore(&i1480u->lock, flags); + break; + case -ECONNRESET: /* Not an error, but a controlled situation; */ + case -ENOENT: /* (we killed the URB)...so, no broadcast */ + dev_dbg(dev, "notif endp: reset/noent %d\n", urb->status); + netif_stop_queue(net_dev); + break; + case -ESHUTDOWN: /* going away! */ + dev_dbg(dev, "notif endp: down %d\n", urb->status); + netif_stop_queue(net_dev); + break; + default: + dev_err(dev, "TX: unknown URB status %d\n", urb->status); + if (edc_inc(&i1480u->tx_errors, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)) { + dev_err(dev, "TX: max acceptable errors exceeded." + "Reset device.\n"); + netif_stop_queue(net_dev); + i1480u_tx_unlink_urbs(i1480u); + usb_dev_reset_delayed(i1480u->usb_dev); + } + break; + } + i1480u_tx_destroy(i1480u, wtx); + if (atomic_dec_return(&i1480u->tx_inflight.count) + <= i1480u->tx_inflight.threshold + && netif_queue_stopped(net_dev) + && i1480u->tx_inflight.threshold != 0) { + if (d_test(2) && printk_ratelimit()) + d_printf(2, dev, "Restart queue. \n"); + netif_start_queue(net_dev); + atomic_inc(&i1480u->tx_inflight.restart_count); + } + return; +} + + +/** + * Given a buffer that doesn't fit in a single fragment, create an + * scatter/gather structure for delivery to the USB pipe. + * + * Implements functionality of i1480u_tx_create(). + * + * @wtx: tx descriptor + * @skb: skb to send + * @gfp_mask: gfp allocation mask + * @returns: Pointer to @wtx if ok, NULL on error. + * + * Sorry, TOO LONG a function, but breaking it up is kind of hard + * + * This will break the buffer in chunks smaller than + * i1480u_MAX_FRG_SIZE (including the header) and add proper headers + * to each: + * + * 1st header \ + * i1480 tx header | fragment 1 + * fragment data / + * nxt header \ fragment 2 + * fragment data / + * .. + * .. + * last header \ fragment 3 + * last fragment data / + * + * This does not fill the i1480 TX header, it is left up to the + * caller to do that; you can get it from @wtx->wlp_tx_hdr. + * + * This function consumes the skb unless there is an error. + */ +static +int i1480u_tx_create_n(struct i1480u_tx *wtx, struct sk_buff *skb, + gfp_t gfp_mask) +{ + int result; + void *pl; + size_t pl_size; + + void *pl_itr, *buf_itr; + size_t pl_size_left, frgs, pl_size_1st, frg_pl_size = 0; + struct untd_hdr_1st *untd_hdr_1st; + struct wlp_tx_hdr *wlp_tx_hdr; + struct untd_hdr_rst *untd_hdr_rst; + + wtx->skb = NULL; + pl = skb->data; + pl_itr = pl; + pl_size = skb->len; + pl_size_left = pl_size; /* payload size */ + /* First fragment; fits as much as i1480u_MAX_FRG_SIZE minus + * the headers */ + pl_size_1st = i1480u_MAX_FRG_SIZE + - sizeof(struct untd_hdr_1st) - sizeof(struct wlp_tx_hdr); + BUG_ON(pl_size_1st > pl_size); + pl_size_left -= pl_size_1st; + /* The rest have an smaller header (no i1480 TX header). We + * need to break up the payload in blocks smaller than + * i1480u_MAX_PL_SIZE (payload excluding header). */ + frgs = (pl_size_left + i1480u_MAX_PL_SIZE - 1) / i1480u_MAX_PL_SIZE; + /* Allocate space for the new buffer. In this new buffer we'll + * place the headers followed by the data fragment, headers, + * data fragments, etc.. + */ + result = -ENOMEM; + wtx->buf_size = sizeof(*untd_hdr_1st) + + sizeof(*wlp_tx_hdr) + + frgs * sizeof(*untd_hdr_rst) + + pl_size; + wtx->buf = kmalloc(wtx->buf_size, gfp_mask); + if (wtx->buf == NULL) + goto error_buf_alloc; + + buf_itr = wtx->buf; /* We got the space, let's fill it up */ + /* Fill 1st fragment */ + untd_hdr_1st = buf_itr; + buf_itr += sizeof(*untd_hdr_1st); + untd_hdr_1st->hdr.type = i1480u_PKT_FRAG_1ST; + untd_hdr_1st->hdr.rx_tx = 0; + untd_hdr_1st->hdr.reserved1 = 0; + untd_hdr_1st->hdr.reserved2 = 0; + untd_hdr_1st->hdr.len = cpu_to_le16(pl_size + sizeof(*wlp_tx_hdr)); + untd_hdr_1st->fragment_len = + cpu_to_le16(pl_size_1st + sizeof(*wlp_tx_hdr)); + memset(untd_hdr_1st->padding, 0, sizeof(untd_hdr_1st->padding)); + /* Set up i1480 header info */ + wlp_tx_hdr = wtx->wlp_tx_hdr = buf_itr; + buf_itr += sizeof(*wlp_tx_hdr); + /* Copy the first fragment */ + memcpy(buf_itr, pl_itr, pl_size_1st); + pl_itr += pl_size_1st; + buf_itr += pl_size_1st; + + /* Now do each remaining fragment */ + result = -EINVAL; + while (pl_size_left > 0) { + d_printf(5, NULL, "ITR HDR: pl_size_left %zu buf_itr %zu\n", + pl_size_left, buf_itr - wtx->buf); + if (buf_itr + sizeof(*untd_hdr_rst) - wtx->buf + > wtx->buf_size) { + printk(KERN_ERR "BUG: no space for header\n"); + goto error_bug; + } + d_printf(5, NULL, "ITR HDR 2: pl_size_left %zu buf_itr %zu\n", + pl_size_left, buf_itr - wtx->buf); + untd_hdr_rst = buf_itr; + buf_itr += sizeof(*untd_hdr_rst); + if (pl_size_left > i1480u_MAX_PL_SIZE) { + frg_pl_size = i1480u_MAX_PL_SIZE; + untd_hdr_rst->hdr.type = i1480u_PKT_FRAG_NXT; + } else { + frg_pl_size = pl_size_left; + untd_hdr_rst->hdr.type = i1480u_PKT_FRAG_LST; + } + d_printf(5, NULL, + "ITR PL: pl_size_left %zu buf_itr %zu frg_pl_size %zu\n", + pl_size_left, buf_itr - wtx->buf, frg_pl_size); + untd_hdr_rst->hdr.rx_tx = 0; + untd_hdr_rst->hdr.reserved1 = 0; + untd_hdr_rst->hdr.reserved2 = 0; + untd_hdr_rst->hdr.len = cpu_to_le16(frg_pl_size); + untd_hdr_rst->padding = 0; + if (buf_itr + frg_pl_size - wtx->buf + > wtx->buf_size) { + printk(KERN_ERR "BUG: no space for payload\n"); + goto error_bug; + } + memcpy(buf_itr, pl_itr, frg_pl_size); + buf_itr += frg_pl_size; + pl_itr += frg_pl_size; + pl_size_left -= frg_pl_size; + d_printf(5, NULL, + "ITR PL 2: pl_size_left %zu buf_itr %zu frg_pl_size %zu\n", + pl_size_left, buf_itr - wtx->buf, frg_pl_size); + } + dev_kfree_skb_irq(skb); + return 0; + +error_bug: + printk(KERN_ERR + "BUG: skb %u bytes\n" + "BUG: frg_pl_size %zd i1480u_MAX_FRG_SIZE %u\n" + "BUG: buf_itr %zu buf_size %zu pl_size_left %zu\n", + skb->len, + frg_pl_size, i1480u_MAX_FRG_SIZE, + buf_itr - wtx->buf, wtx->buf_size, pl_size_left); + + kfree(wtx->buf); +error_buf_alloc: + return result; +} + + +/** + * Given a buffer that fits in a single fragment, fill out a @wtx + * struct for transmitting it down the USB pipe. + * + * Uses the fact that we have space reserved in front of the skbuff + * for hardware headers :] + * + * This does not fill the i1480 TX header, it is left up to the + * caller to do that; you can get it from @wtx->wlp_tx_hdr. + * + * @pl: pointer to payload data + * @pl_size: size of the payuload + * + * This function does not consume the @skb. + */ +static +int i1480u_tx_create_1(struct i1480u_tx *wtx, struct sk_buff *skb, + gfp_t gfp_mask) +{ + struct untd_hdr_cmp *untd_hdr_cmp; + struct wlp_tx_hdr *wlp_tx_hdr; + + wtx->buf = NULL; + wtx->skb = skb; + BUG_ON(skb_headroom(skb) < sizeof(*wlp_tx_hdr)); + wlp_tx_hdr = (void *) __skb_push(skb, sizeof(*wlp_tx_hdr)); + wtx->wlp_tx_hdr = wlp_tx_hdr; + BUG_ON(skb_headroom(skb) < sizeof(*untd_hdr_cmp)); + untd_hdr_cmp = (void *) __skb_push(skb, sizeof(*untd_hdr_cmp)); + + untd_hdr_cmp->hdr.type = i1480u_PKT_FRAG_CMP; + untd_hdr_cmp->hdr.rx_tx = 0; + untd_hdr_cmp->hdr.reserved1 = 0; + untd_hdr_cmp->hdr.len = cpu_to_le16(skb->len - sizeof(*untd_hdr_cmp)); + untd_hdr_cmp->hdr.reserved2 = 0; + untd_hdr_cmp->padding = 0; + return 0; +} + + +/** + * Given a skb to transmit, massage it to become palatable for the TX pipe + * + * This will break the buffer in chunks smaller than + * i1480u_MAX_FRG_SIZE and add proper headers to each. + * + * 1st header \ + * i1480 tx header | fragment 1 + * fragment data / + * nxt header \ fragment 2 + * fragment data / + * .. + * .. + * last header \ fragment 3 + * last fragment data / + * + * Each fragment will be always smaller or equal to i1480u_MAX_FRG_SIZE. + * + * If the first fragment is smaller than i1480u_MAX_FRG_SIZE, then the + * following is composed: + * + * complete header \ + * i1480 tx header | single fragment + * packet data / + * + * We were going to use s/g support, but because the interface is + * synch and at the end there is plenty of overhead to do it, it + * didn't seem that worth for data that is going to be smaller than + * one page. + */ +static +struct i1480u_tx *i1480u_tx_create(struct i1480u *i1480u, + struct sk_buff *skb, gfp_t gfp_mask) +{ + int result; + struct usb_endpoint_descriptor *epd; + int usb_pipe; + unsigned long flags; + + struct i1480u_tx *wtx; + const size_t pl_max_size = + i1480u_MAX_FRG_SIZE - sizeof(struct untd_hdr_cmp) + - sizeof(struct wlp_tx_hdr); + + wtx = kmalloc(sizeof(*wtx), gfp_mask); + if (wtx == NULL) + goto error_wtx_alloc; + wtx->urb = usb_alloc_urb(0, gfp_mask); + if (wtx->urb == NULL) + goto error_urb_alloc; + epd = &i1480u->usb_iface->cur_altsetting->endpoint[2].desc; + usb_pipe = usb_sndbulkpipe(i1480u->usb_dev, epd->bEndpointAddress); + /* Fits in a single complete packet or need to split? */ + if (skb->len > pl_max_size) { + result = i1480u_tx_create_n(wtx, skb, gfp_mask); + if (result < 0) + goto error_create; + usb_fill_bulk_urb(wtx->urb, i1480u->usb_dev, usb_pipe, + wtx->buf, wtx->buf_size, i1480u_tx_cb, wtx); + } else { + result = i1480u_tx_create_1(wtx, skb, gfp_mask); + if (result < 0) + goto error_create; + usb_fill_bulk_urb(wtx->urb, i1480u->usb_dev, usb_pipe, + skb->data, skb->len, i1480u_tx_cb, wtx); + } + spin_lock_irqsave(&i1480u->tx_list_lock, flags); + list_add(&wtx->list_node, &i1480u->tx_list); + spin_unlock_irqrestore(&i1480u->tx_list_lock, flags); + return wtx; + +error_create: + kfree(wtx->urb); +error_urb_alloc: + kfree(wtx); +error_wtx_alloc: + return NULL; +} + +/** + * Actual fragmentation and transmission of frame + * + * @wlp: WLP substack data structure + * @skb: To be transmitted + * @dst: Device address of destination + * @returns: 0 on success, <0 on failure + * + * This function can also be called directly (not just from + * hard_start_xmit), so we also check here if the interface is up before + * taking sending anything. + */ +int i1480u_xmit_frame(struct wlp *wlp, struct sk_buff *skb, + struct uwb_dev_addr *dst) +{ + int result = -ENXIO; + struct i1480u *i1480u = container_of(wlp, struct i1480u, wlp); + struct device *dev = &i1480u->usb_iface->dev; + struct net_device *net_dev = i1480u->net_dev; + struct i1480u_tx *wtx; + struct wlp_tx_hdr *wlp_tx_hdr; + static unsigned char dev_bcast[2] = { 0xff, 0xff }; +#if 0 + int lockup = 50; +#endif + + d_fnstart(6, dev, "(skb %p (%u), net_dev %p)\n", skb, skb->len, + net_dev); + BUG_ON(i1480u->wlp.rc == NULL); + if ((net_dev->flags & IFF_UP) == 0) + goto out; + result = -EBUSY; + if (atomic_read(&i1480u->tx_inflight.count) >= i1480u->tx_inflight.max) { + if (d_test(2) && printk_ratelimit()) + d_printf(2, dev, "Max frames in flight " + "stopping queue.\n"); + netif_stop_queue(net_dev); + goto error_max_inflight; + } + result = -ENOMEM; + wtx = i1480u_tx_create(i1480u, skb, GFP_ATOMIC); + if (unlikely(wtx == NULL)) { + if (printk_ratelimit()) + dev_err(dev, "TX: no memory for WLP TX URB," + "dropping packet (in flight %d)\n", + atomic_read(&i1480u->tx_inflight.count)); + netif_stop_queue(net_dev); + goto error_wtx_alloc; + } + wtx->i1480u = i1480u; + /* Fill out the i1480 header; @i1480u->def_tx_hdr read without + * locking. We do so because they are kind of orthogonal to + * each other (and thus not changed in an atomic batch). + * The ETH header is right after the WLP TX header. */ + wlp_tx_hdr = wtx->wlp_tx_hdr; + *wlp_tx_hdr = i1480u->options.def_tx_hdr; + wlp_tx_hdr->dstaddr = *dst; + if (!memcmp(&wlp_tx_hdr->dstaddr, dev_bcast, sizeof(dev_bcast)) && + (wlp_tx_hdr->delivery_id_type & WLP_DRP)) { + /*Broadcast message directed to DRP host. Send as best effort + * on PCA. */ + wlp_tx_hdr->delivery_id_type = i1480u->options.pca_base_priority; + } + +#if 0 + dev_info(dev, "TX delivering skb -> USB, %zu bytes\n", skb->len); + dump_bytes(dev, skb->data, skb->len > 72? 72 : skb->len); +#endif +#if 0 + /* simulates a device lockup after every lockup# packets */ + if (lockup && ((i1480u->stats.tx_packets + 1) % lockup) == 0) { + /* Simulate a dropped transmit interrupt */ + net_dev->trans_start = jiffies; + netif_stop_queue(net_dev); + dev_err(dev, "Simulate lockup at %ld\n", jiffies); + return result; + } +#endif + + result = usb_submit_urb(wtx->urb, GFP_ATOMIC); /* Go baby */ + if (result < 0) { + dev_err(dev, "TX: cannot submit URB: %d\n", result); + /* We leave the freeing of skb to calling function */ + wtx->skb = NULL; + goto error_tx_urb_submit; + } + atomic_inc(&i1480u->tx_inflight.count); + net_dev->trans_start = jiffies; + d_fnend(6, dev, "(skb %p (%u), net_dev %p) = %d\n", skb, skb->len, + net_dev, result); + return result; + +error_tx_urb_submit: + i1480u_tx_destroy(i1480u, wtx); +error_wtx_alloc: +error_max_inflight: +out: + d_fnend(6, dev, "(skb %p (%u), net_dev %p) = %d\n", skb, skb->len, + net_dev, result); + return result; +} + + +/** + * Transmit an skb Called when an skbuf has to be transmitted + * + * The skb is first passed to WLP substack to ensure this is a valid + * frame. If valid the device address of destination will be filled and + * the WLP header prepended to the skb. If this step fails we fake sending + * the frame, if we return an error the network stack will just keep trying. + * + * Broadcast frames inside a WSS needs to be treated special as multicast is + * not supported. A broadcast frame is sent as unicast to each member of the + * WSS - this is done by the WLP substack when it finds a broadcast frame. + * So, we test if the WLP substack took over the skb and only transmit it + * if it has not (been taken over). + * + * @net_dev->xmit_lock is held + */ +int i1480u_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev) +{ + int result; + struct i1480u *i1480u = netdev_priv(net_dev); + struct device *dev = &i1480u->usb_iface->dev; + struct uwb_dev_addr dst; + + d_fnstart(6, dev, "(skb %p (%u), net_dev %p)\n", skb, skb->len, + net_dev); + BUG_ON(i1480u->wlp.rc == NULL); + if ((net_dev->flags & IFF_UP) == 0) + goto error; + result = wlp_prepare_tx_frame(dev, &i1480u->wlp, skb, &dst); + if (result < 0) { + dev_err(dev, "WLP verification of TX frame failed (%d). " + "Dropping packet.\n", result); + goto error; + } else if (result == 1) { + d_printf(6, dev, "WLP will transmit frame. \n"); + /* trans_start time will be set when WLP actually transmits + * the frame */ + goto out; + } + d_printf(6, dev, "Transmitting frame. \n"); + result = i1480u_xmit_frame(&i1480u->wlp, skb, &dst); + if (result < 0) { + dev_err(dev, "Frame TX failed (%d).\n", result); + goto error; + } + d_fnend(6, dev, "(skb %p (%u), net_dev %p) = %d\n", skb, skb->len, + net_dev, result); + return NETDEV_TX_OK; +error: + dev_kfree_skb_any(skb); + i1480u->stats.tx_dropped++; +out: + d_fnend(6, dev, "(skb %p (%u), net_dev %p) = %d\n", skb, skb->len, + net_dev, result); + return NETDEV_TX_OK; +} + + +/** + * Called when a pkt transmission doesn't complete in a reasonable period + * Device reset may sleep - do it outside of interrupt context (delayed) + */ +void i1480u_tx_timeout(struct net_device *net_dev) +{ + struct i1480u *i1480u = netdev_priv(net_dev); + + usb_dev_reset_delayed(i1480u->usb_dev); +} + + +void i1480u_tx_release(struct i1480u *i1480u) +{ + unsigned long flags; + struct i1480u_tx *wtx, *next; + int count = 0, empty; + + spin_lock_irqsave(&i1480u->tx_list_lock, flags); + list_for_each_entry_safe(wtx, next, &i1480u->tx_list, list_node) { + count++; + usb_unlink_urb(wtx->urb); + } + spin_unlock_irqrestore(&i1480u->tx_list_lock, flags); + count = count*10; /* i1480ut 200ms per unlinked urb (intervals of 20ms) */ + /* + * We don't like this sollution too much (dirty as it is), but + * it is cheaper than putting a refcount on each i1480u_tx and + * i1480uting for all of them to go away... + * + * Called when no more packets can be added to tx_list + * so can i1480ut for it to be empty. + */ + while (1) { + spin_lock_irqsave(&i1480u->tx_list_lock, flags); + empty = list_empty(&i1480u->tx_list); + spin_unlock_irqrestore(&i1480u->tx_list_lock, flags); + if (empty) + break; + count--; + BUG_ON(count == 0); + msleep(20); + } +} diff --git a/drivers/uwb/ie.c b/drivers/uwb/ie.c new file mode 100644 index 000000000000..d54fe09a986d --- /dev/null +++ b/drivers/uwb/ie.c @@ -0,0 +1,570 @@ +/* + * Ultra Wide Band + * Information Element Handling + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * Reinette Chatre <reinette.chatre@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ + +#include "uwb-internal.h" +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +/** + * uwb_ie_next - get the next IE in a buffer + * @ptr: start of the buffer containing the IE data + * @len: length of the buffer + * + * Both @ptr and @len are updated so subsequent calls to uwb_ie_next() + * will get the next IE. + * + * NULL is returned (and @ptr and @len will not be updated) if there + * are no more IEs in the buffer or the buffer is too short. + */ +struct uwb_ie_hdr *uwb_ie_next(void **ptr, size_t *len) +{ + struct uwb_ie_hdr *hdr; + size_t ie_len; + + if (*len < sizeof(struct uwb_ie_hdr)) + return NULL; + + hdr = *ptr; + ie_len = sizeof(struct uwb_ie_hdr) + hdr->length; + + if (*len < ie_len) + return NULL; + + *ptr += ie_len; + *len -= ie_len; + + return hdr; +} +EXPORT_SYMBOL_GPL(uwb_ie_next); + +/** + * Get the IEs that a radio controller is sending in its beacon + * + * @uwb_rc: UWB Radio Controller + * @returns: Size read from the system + * + * We don't need to lock the uwb_rc's mutex because we don't modify + * anything. Once done with the iedata buffer, call + * uwb_rc_ie_release(iedata). Don't call kfree on it. + */ +ssize_t uwb_rc_get_ie(struct uwb_rc *uwb_rc, struct uwb_rc_evt_get_ie **pget_ie) +{ + ssize_t result; + struct device *dev = &uwb_rc->uwb_dev.dev; + struct uwb_rccb *cmd = NULL; + struct uwb_rceb *reply = NULL; + struct uwb_rc_evt_get_ie *get_ie; + + d_fnstart(3, dev, "(%p, %p)\n", uwb_rc, pget_ie); + result = -ENOMEM; + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + goto error_kzalloc; + cmd->bCommandType = UWB_RC_CET_GENERAL; + cmd->wCommand = cpu_to_le16(UWB_RC_CMD_GET_IE); + result = uwb_rc_vcmd(uwb_rc, "GET_IE", cmd, sizeof(*cmd), + UWB_RC_CET_GENERAL, UWB_RC_CMD_GET_IE, + &reply); + if (result < 0) + goto error_cmd; + get_ie = container_of(reply, struct uwb_rc_evt_get_ie, rceb); + if (result < sizeof(*get_ie)) { + dev_err(dev, "not enough data returned for decoding GET IE " + "(%zu bytes received vs %zu needed)\n", + result, sizeof(*get_ie)); + result = -EINVAL; + } else if (result < sizeof(*get_ie) + le16_to_cpu(get_ie->wIELength)) { + dev_err(dev, "not enough data returned for decoding GET IE " + "payload (%zu bytes received vs %zu needed)\n", result, + sizeof(*get_ie) + le16_to_cpu(get_ie->wIELength)); + result = -EINVAL; + } else + *pget_ie = get_ie; +error_cmd: + kfree(cmd); +error_kzalloc: + d_fnend(3, dev, "(%p, %p) = %d\n", uwb_rc, pget_ie, (int)result); + return result; +} +EXPORT_SYMBOL_GPL(uwb_rc_get_ie); + + +/* + * Given a pointer to an IE, print it in ASCII/hex followed by a new line + * + * @ie_hdr: pointer to the IE header. Length is in there, and it is + * guaranteed that the ie_hdr->length bytes following it are + * safely accesible. + * + * @_data: context data passed from uwb_ie_for_each(), an struct output_ctx + */ +int uwb_ie_dump_hex(struct uwb_dev *uwb_dev, const struct uwb_ie_hdr *ie_hdr, + size_t offset, void *_ctx) +{ + struct uwb_buf_ctx *ctx = _ctx; + const u8 *pl = (void *)(ie_hdr + 1); + u8 pl_itr; + + ctx->bytes += scnprintf(ctx->buf + ctx->bytes, ctx->size - ctx->bytes, + "%02x %02x ", (unsigned) ie_hdr->element_id, + (unsigned) ie_hdr->length); + pl_itr = 0; + while (pl_itr < ie_hdr->length && ctx->bytes < ctx->size) + ctx->bytes += scnprintf(ctx->buf + ctx->bytes, + ctx->size - ctx->bytes, + "%02x ", (unsigned) pl[pl_itr++]); + if (ctx->bytes < ctx->size) + ctx->buf[ctx->bytes++] = '\n'; + return 0; +} +EXPORT_SYMBOL_GPL(uwb_ie_dump_hex); + + +/** + * Verify that a pointer in a buffer points to valid IE + * + * @start: pointer to start of buffer in which IE appears + * @itr: pointer to IE inside buffer that will be verified + * @top: pointer to end of buffer + * + * @returns: 0 if IE is valid, <0 otherwise + * + * Verification involves checking that the buffer can contain a + * header and the amount of data reported in the IE header can be found in + * the buffer. + */ +static +int uwb_rc_ie_verify(struct uwb_dev *uwb_dev, const void *start, + const void *itr, const void *top) +{ + struct device *dev = &uwb_dev->dev; + const struct uwb_ie_hdr *ie_hdr; + + if (top - itr < sizeof(*ie_hdr)) { + dev_err(dev, "Bad IE: no data to decode header " + "(%zu bytes left vs %zu needed) at offset %zu\n", + top - itr, sizeof(*ie_hdr), itr - start); + return -EINVAL; + } + ie_hdr = itr; + itr += sizeof(*ie_hdr); + if (top - itr < ie_hdr->length) { + dev_err(dev, "Bad IE: not enough data for payload " + "(%zu bytes left vs %zu needed) at offset %zu\n", + top - itr, (size_t)ie_hdr->length, + (void *)ie_hdr - start); + return -EINVAL; + } + return 0; +} + + +/** + * Walk a buffer filled with consecutive IE's a buffer + * + * @uwb_dev: UWB device this IEs belong to (for err messages mainly) + * + * @fn: function to call with each IE; if it returns 0, we keep + * traversing the buffer. If it returns !0, we'll stop and return + * that value. + * + * @data: pointer passed to @fn + * + * @buf: buffer where the consecutive IEs are located + * + * @size: size of @buf + * + * Each IE is checked for basic correctness (there is space left for + * the header and the payload). If that test is failed, we stop + * processing. For every good IE, @fn is called. + */ +ssize_t uwb_ie_for_each(struct uwb_dev *uwb_dev, uwb_ie_f fn, void *data, + const void *buf, size_t size) +{ + ssize_t result = 0; + const struct uwb_ie_hdr *ie_hdr; + const void *itr = buf, *top = itr + size; + + while (itr < top) { + if (uwb_rc_ie_verify(uwb_dev, buf, itr, top) != 0) + break; + ie_hdr = itr; + itr += sizeof(*ie_hdr) + ie_hdr->length; + result = fn(uwb_dev, ie_hdr, itr - buf, data); + if (result != 0) + break; + } + return result; +} +EXPORT_SYMBOL_GPL(uwb_ie_for_each); + + +/** + * Replace all IEs currently being transmitted by a device + * + * @cmd: pointer to the SET-IE command with the IEs to set + * @size: size of @buf + */ +int uwb_rc_set_ie(struct uwb_rc *rc, struct uwb_rc_cmd_set_ie *cmd) +{ + int result; + struct device *dev = &rc->uwb_dev.dev; + struct uwb_rc_evt_set_ie reply; + + reply.rceb.bEventType = UWB_RC_CET_GENERAL; + reply.rceb.wEvent = UWB_RC_CMD_SET_IE; + result = uwb_rc_cmd(rc, "SET-IE", &cmd->rccb, + sizeof(*cmd) + le16_to_cpu(cmd->wIELength), + &reply.rceb, sizeof(reply)); + if (result < 0) + goto error_cmd; + else if (result != sizeof(reply)) { + dev_err(dev, "SET-IE: not enough data to decode reply " + "(%d bytes received vs %zu needed)\n", + result, sizeof(reply)); + result = -EIO; + } else if (reply.bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(dev, "SET-IE: command execution failed: %s (%d)\n", + uwb_rc_strerror(reply.bResultCode), reply.bResultCode); + result = -EIO; + } else + result = 0; +error_cmd: + return result; +} + +/** + * Determine by IE id if IE is host settable + * WUSB 1.0 [8.6.2.8 Table 8.85] + * + * EXCEPTION: + * All but UWB_IE_WLP appears in Table 8.85 from WUSB 1.0. Setting this IE + * is required for the WLP substack to perform association with its WSS so + * we hope that the WUSB spec will be changed to reflect this. + */ +static +int uwb_rc_ie_is_host_settable(enum uwb_ie element_id) +{ + if (element_id == UWB_PCA_AVAILABILITY || + element_id == UWB_BP_SWITCH_IE || + element_id == UWB_MAC_CAPABILITIES_IE || + element_id == UWB_PHY_CAPABILITIES_IE || + element_id == UWB_APP_SPEC_PROBE_IE || + element_id == UWB_IDENTIFICATION_IE || + element_id == UWB_MASTER_KEY_ID_IE || + element_id == UWB_IE_WLP || + element_id == UWB_APP_SPEC_IE) + return 1; + return 0; +} + + +/** + * Extract Host Settable IEs from IE + * + * @ie_data: pointer to buffer containing all IEs + * @size: size of buffer + * + * @returns: length of buffer that only includes host settable IEs + * + * Given a buffer of IEs we move all Host Settable IEs to front of buffer + * by overwriting the IEs that are not Host Settable. + * Buffer length is adjusted accordingly. + */ +static +ssize_t uwb_rc_parse_host_settable_ie(struct uwb_dev *uwb_dev, + void *ie_data, size_t size) +{ + size_t new_len = size; + struct uwb_ie_hdr *ie_hdr; + size_t ie_length; + void *itr = ie_data, *top = itr + size; + + while (itr < top) { + if (uwb_rc_ie_verify(uwb_dev, ie_data, itr, top) != 0) + break; + ie_hdr = itr; + ie_length = sizeof(*ie_hdr) + ie_hdr->length; + if (uwb_rc_ie_is_host_settable(ie_hdr->element_id)) { + itr += ie_length; + } else { + memmove(itr, itr + ie_length, top - (itr + ie_length)); + new_len -= ie_length; + top -= ie_length; + } + } + return new_len; +} + + +/* Cleanup the whole IE management subsystem */ +void uwb_rc_ie_init(struct uwb_rc *uwb_rc) +{ + mutex_init(&uwb_rc->ies_mutex); +} + + +/** + * Set up cache for host settable IEs currently being transmitted + * + * First we just call GET-IE to get the current IEs being transmitted + * (or we workaround and pretend we did) and (because the format is + * the same) reuse that as the IE cache (with the command prefix, as + * explained in 'struct uwb_rc'). + * + * @returns: size of cache created + */ +ssize_t uwb_rc_ie_setup(struct uwb_rc *uwb_rc) +{ + struct device *dev = &uwb_rc->uwb_dev.dev; + ssize_t result; + size_t capacity; + struct uwb_rc_evt_get_ie *ie_info; + + d_fnstart(3, dev, "(%p)\n", uwb_rc); + mutex_lock(&uwb_rc->ies_mutex); + result = uwb_rc_get_ie(uwb_rc, &ie_info); + if (result < 0) + goto error_get_ie; + capacity = result; + d_printf(5, dev, "Got IEs %zu bytes (%zu long at %p)\n", result, + (size_t)le16_to_cpu(ie_info->wIELength), ie_info); + + /* Remove IEs that host should not set. */ + result = uwb_rc_parse_host_settable_ie(&uwb_rc->uwb_dev, + ie_info->IEData, le16_to_cpu(ie_info->wIELength)); + if (result < 0) + goto error_parse; + d_printf(5, dev, "purged non-settable IEs to %zu bytes\n", result); + uwb_rc->ies = (void *) ie_info; + uwb_rc->ies->rccb.bCommandType = UWB_RC_CET_GENERAL; + uwb_rc->ies->rccb.wCommand = cpu_to_le16(UWB_RC_CMD_SET_IE); + uwb_rc->ies_capacity = capacity; + d_printf(5, dev, "IE cache at %p %zu bytes, %zu capacity\n", + ie_info, result, capacity); + result = 0; +error_parse: +error_get_ie: + mutex_unlock(&uwb_rc->ies_mutex); + d_fnend(3, dev, "(%p) = %zu\n", uwb_rc, result); + return result; +} + + +/* Cleanup the whole IE management subsystem */ +void uwb_rc_ie_release(struct uwb_rc *uwb_rc) +{ + kfree(uwb_rc->ies); + uwb_rc->ies = NULL; + uwb_rc->ies_capacity = 0; +} + + +static +int __acc_size(struct uwb_dev *uwb_dev, const struct uwb_ie_hdr *ie_hdr, + size_t offset, void *_ctx) +{ + size_t *acc_size = _ctx; + *acc_size += sizeof(*ie_hdr) + ie_hdr->length; + d_printf(6, &uwb_dev->dev, "new acc size %zu\n", *acc_size); + return 0; +} + + +/** + * Add a new IE to IEs currently being transmitted by device + * + * @ies: the buffer containing the new IE or IEs to be added to + * the device's beacon. The buffer will be verified for + * consistence (meaning the headers should be right) and + * consistent with the buffer size. + * @size: size of @ies (in bytes, total buffer size) + * @returns: 0 if ok, <0 errno code on error + * + * According to WHCI 0.95 [4.13.6] the driver will only receive the RCEB + * after the device sent the first beacon that includes the IEs specified + * in the SET IE command. We thus cannot send this command if the device is + * not beaconing. Instead, a SET IE command will be sent later right after + * we start beaconing. + * + * Setting an IE on the device will overwrite all current IEs in device. So + * we take the current IEs being transmitted by the device, append the + * new one, and call SET IE with all the IEs needed. + * + * The local IE cache will only be updated with the new IE if SET IE + * completed successfully. + */ +int uwb_rc_ie_add(struct uwb_rc *uwb_rc, + const struct uwb_ie_hdr *ies, size_t size) +{ + int result = 0; + struct device *dev = &uwb_rc->uwb_dev.dev; + struct uwb_rc_cmd_set_ie *new_ies; + size_t ies_size, total_size, acc_size = 0; + + if (uwb_rc->ies == NULL) + return -ESHUTDOWN; + uwb_ie_for_each(&uwb_rc->uwb_dev, __acc_size, &acc_size, ies, size); + if (acc_size != size) { + dev_err(dev, "BUG: bad IEs, misconstructed headers " + "[%zu bytes reported vs %zu calculated]\n", + size, acc_size); + WARN_ON(1); + return -EINVAL; + } + mutex_lock(&uwb_rc->ies_mutex); + ies_size = le16_to_cpu(uwb_rc->ies->wIELength); + total_size = sizeof(*uwb_rc->ies) + ies_size; + if (total_size + size > uwb_rc->ies_capacity) { + d_printf(4, dev, "Reallocating IE cache from %p capacity %zu " + "to capacity %zu\n", uwb_rc->ies, uwb_rc->ies_capacity, + total_size + size); + new_ies = kzalloc(total_size + size, GFP_KERNEL); + if (new_ies == NULL) { + dev_err(dev, "No memory for adding new IE\n"); + result = -ENOMEM; + goto error_alloc; + } + memcpy(new_ies, uwb_rc->ies, total_size); + uwb_rc->ies_capacity = total_size + size; + kfree(uwb_rc->ies); + uwb_rc->ies = new_ies; + d_printf(4, dev, "New IE cache at %p capacity %zu\n", + uwb_rc->ies, uwb_rc->ies_capacity); + } + memcpy((void *)uwb_rc->ies + total_size, ies, size); + uwb_rc->ies->wIELength = cpu_to_le16(ies_size + size); + if (uwb_rc->beaconing != -1) { + result = uwb_rc_set_ie(uwb_rc, uwb_rc->ies); + if (result < 0) { + dev_err(dev, "Cannot set new IE on device: %d\n", + result); + uwb_rc->ies->wIELength = cpu_to_le16(ies_size); + } else + result = 0; + } + d_printf(4, dev, "IEs now occupy %hu bytes of %zu capacity at %p\n", + le16_to_cpu(uwb_rc->ies->wIELength), uwb_rc->ies_capacity, + uwb_rc->ies); +error_alloc: + mutex_unlock(&uwb_rc->ies_mutex); + return result; +} +EXPORT_SYMBOL_GPL(uwb_rc_ie_add); + + +/* + * Remove an IE from internal cache + * + * We are dealing with our internal IE cache so no need to verify that the + * IEs are valid (it has been done already). + * + * Should be called with ies_mutex held + * + * We do not break out once an IE is found in the cache. It is currently + * possible to have more than one IE with the same ID included in the + * beacon. We don't reallocate, we just mark the size smaller. + */ +static +int uwb_rc_ie_cache_rm(struct uwb_rc *uwb_rc, enum uwb_ie to_remove) +{ + struct uwb_ie_hdr *ie_hdr; + size_t new_len = le16_to_cpu(uwb_rc->ies->wIELength); + void *itr = uwb_rc->ies->IEData; + void *top = itr + new_len; + + while (itr < top) { + ie_hdr = itr; + if (ie_hdr->element_id != to_remove) { + itr += sizeof(*ie_hdr) + ie_hdr->length; + } else { + int ie_length; + ie_length = sizeof(*ie_hdr) + ie_hdr->length; + if (top - itr != ie_length) + memmove(itr, itr + ie_length, top - itr + ie_length); + top -= ie_length; + new_len -= ie_length; + } + } + uwb_rc->ies->wIELength = cpu_to_le16(new_len); + return 0; +} + + +/** + * Remove an IE currently being transmitted by device + * + * @element_id: id of IE to be removed from device's beacon + */ +int uwb_rc_ie_rm(struct uwb_rc *uwb_rc, enum uwb_ie element_id) +{ + struct device *dev = &uwb_rc->uwb_dev.dev; + int result; + + if (uwb_rc->ies == NULL) + return -ESHUTDOWN; + mutex_lock(&uwb_rc->ies_mutex); + result = uwb_rc_ie_cache_rm(uwb_rc, element_id); + if (result < 0) + dev_err(dev, "Cannot remove IE from cache.\n"); + if (uwb_rc->beaconing != -1) { + result = uwb_rc_set_ie(uwb_rc, uwb_rc->ies); + if (result < 0) + dev_err(dev, "Cannot set new IE on device.\n"); + } + mutex_unlock(&uwb_rc->ies_mutex); + return result; +} +EXPORT_SYMBOL_GPL(uwb_rc_ie_rm); + + +/** + * Create and set new Identification IE + * + * Currently only sets the Vendor ID. The Vendor ID is set from the OUI, + * which is obtained from the first three bytes from the MAC address. + */ +int uwb_rc_set_identification_ie(struct uwb_rc *uwb_rc) +{ + struct { + struct uwb_identification_ie id_ie; + struct uwb_dev_info dev_info; + struct uwb_vendor_id vendor_id; + } ie_data; + + ie_data.id_ie.hdr.element_id = UWB_IDENTIFICATION_IE; + ie_data.id_ie.hdr.length = sizeof(struct uwb_dev_info) + + sizeof(struct uwb_vendor_id); + + ie_data.dev_info.type = UWB_DEV_INFO_VENDOR_ID; + ie_data.dev_info.length = sizeof(struct uwb_vendor_id); + + ie_data.vendor_id.data[0] = uwb_rc->uwb_dev.mac_addr.data[0]; + ie_data.vendor_id.data[1] = uwb_rc->uwb_dev.mac_addr.data[1]; + ie_data.vendor_id.data[2] = uwb_rc->uwb_dev.mac_addr.data[2]; + + return uwb_rc_ie_add(uwb_rc, &ie_data.id_ie.hdr, sizeof(ie_data)); +} diff --git a/drivers/uwb/lc-dev.c b/drivers/uwb/lc-dev.c new file mode 100644 index 000000000000..5b0a31d53e43 --- /dev/null +++ b/drivers/uwb/lc-dev.c @@ -0,0 +1,512 @@ +/* + * Ultra Wide Band + * Life cycle of devices + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ + +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/kdev_t.h> +#include <linux/random.h> +#include "uwb-internal.h" + +#define D_LOCAL 1 +#include <linux/uwb/debug.h> + + +/* We initialize addresses to 0xff (invalid, as it is bcast) */ +static inline void uwb_dev_addr_init(struct uwb_dev_addr *addr) +{ + memset(&addr->data, 0xff, sizeof(addr->data)); +} + +static inline void uwb_mac_addr_init(struct uwb_mac_addr *addr) +{ + memset(&addr->data, 0xff, sizeof(addr->data)); +} + +/* @returns !0 if a device @addr is a broadcast address */ +static inline int uwb_dev_addr_bcast(const struct uwb_dev_addr *addr) +{ + static const struct uwb_dev_addr bcast = { .data = { 0xff, 0xff } }; + return !uwb_dev_addr_cmp(addr, &bcast); +} + +/* + * Add callback @new to be called when an event occurs in @rc. + */ +int uwb_notifs_register(struct uwb_rc *rc, struct uwb_notifs_handler *new) +{ + if (mutex_lock_interruptible(&rc->notifs_chain.mutex)) + return -ERESTARTSYS; + list_add(&new->list_node, &rc->notifs_chain.list); + mutex_unlock(&rc->notifs_chain.mutex); + return 0; +} +EXPORT_SYMBOL_GPL(uwb_notifs_register); + +/* + * Remove event handler (callback) + */ +int uwb_notifs_deregister(struct uwb_rc *rc, struct uwb_notifs_handler *entry) +{ + if (mutex_lock_interruptible(&rc->notifs_chain.mutex)) + return -ERESTARTSYS; + list_del(&entry->list_node); + mutex_unlock(&rc->notifs_chain.mutex); + return 0; +} +EXPORT_SYMBOL_GPL(uwb_notifs_deregister); + +/* + * Notify all event handlers of a given event on @rc + * + * We are called with a valid reference to the device. + */ +void uwb_notify(struct uwb_rc *rc, struct uwb_dev *uwb_dev, enum uwb_notifs event) +{ + struct uwb_notifs_handler *handler; + if (mutex_lock_interruptible(&rc->notifs_chain.mutex)) + return; + if (!list_empty(&rc->notifs_chain.list)) { + list_for_each_entry(handler, &rc->notifs_chain.list, list_node) { + handler->cb(handler->data, uwb_dev, event); + } + } + mutex_unlock(&rc->notifs_chain.mutex); +} + +/* + * Release the backing device of a uwb_dev that has been dynamically allocated. + */ +static void uwb_dev_sys_release(struct device *dev) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + + d_fnstart(4, NULL, "(dev %p uwb_dev %p)\n", dev, uwb_dev); + uwb_bce_put(uwb_dev->bce); + d_printf(0, &uwb_dev->dev, "uwb_dev %p freed\n", uwb_dev); + memset(uwb_dev, 0x69, sizeof(*uwb_dev)); + kfree(uwb_dev); + d_fnend(4, NULL, "(dev %p uwb_dev %p) = void\n", dev, uwb_dev); +} + +/* + * Initialize a UWB device instance + * + * Alloc, zero and call this function. + */ +void uwb_dev_init(struct uwb_dev *uwb_dev) +{ + mutex_init(&uwb_dev->mutex); + device_initialize(&uwb_dev->dev); + uwb_dev->dev.release = uwb_dev_sys_release; + uwb_dev_addr_init(&uwb_dev->dev_addr); + uwb_mac_addr_init(&uwb_dev->mac_addr); + bitmap_fill(uwb_dev->streams, UWB_NUM_GLOBAL_STREAMS); +} + +static ssize_t uwb_dev_EUI_48_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + char addr[UWB_ADDR_STRSIZE]; + + uwb_mac_addr_print(addr, sizeof(addr), &uwb_dev->mac_addr); + return sprintf(buf, "%s\n", addr); +} +static DEVICE_ATTR(EUI_48, S_IRUGO, uwb_dev_EUI_48_show, NULL); + +static ssize_t uwb_dev_DevAddr_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + char addr[UWB_ADDR_STRSIZE]; + + uwb_dev_addr_print(addr, sizeof(addr), &uwb_dev->dev_addr); + return sprintf(buf, "%s\n", addr); +} +static DEVICE_ATTR(DevAddr, S_IRUGO, uwb_dev_DevAddr_show, NULL); + +/* + * Show the BPST of this device. + * + * Calculated from the receive time of the device's beacon and it's + * slot number. + */ +static ssize_t uwb_dev_BPST_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_beca_e *bce; + struct uwb_beacon_frame *bf; + u16 bpst; + + if (&uwb_dev->rc->uwb_dev == uwb_dev) /* local radio controller */ + return 0; + + bce = uwb_dev->bce; + mutex_lock(&bce->mutex); + bf = (struct uwb_beacon_frame *)bce->be->BeaconInfo; + bpst = bce->be->wBPSTOffset + - (u16)(bf->Beacon_Slot_Number * UWB_BEACON_SLOT_LENGTH_US); + mutex_unlock(&bce->mutex); + + return sprintf(buf, "%d\n", bpst); +} +static DEVICE_ATTR(BPST, S_IRUGO, uwb_dev_BPST_show, NULL); + +/* + * Show the IEs a device is beaconing + * + * We need to access the beacon cache, so we just lock it really + * quick, print the IEs and unlock. + * + * We have a reference on the cache entry, so that should be + * quite safe. + */ +static ssize_t uwb_dev_IEs_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + ssize_t result; + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + + if (&uwb_dev->rc->uwb_dev == uwb_dev) /* This is a local radio controller */ + result = uwb_rc_print_IEs(uwb_dev->rc, buf, PAGE_SIZE); + else + result = uwb_bce_print_IEs(uwb_dev, uwb_dev->bce, + buf, PAGE_SIZE); + return result; +} +static DEVICE_ATTR(IEs, S_IRUGO | S_IWUSR, uwb_dev_IEs_show, NULL); + +static ssize_t uwb_dev_LQE_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_beca_e *bce = uwb_dev->bce; + size_t result; + + /* is this a local device? */ + if (bce == NULL) + return 0; + mutex_lock(&bce->mutex); + result = stats_show(&uwb_dev->bce->lqe_stats, buf); + mutex_unlock(&bce->mutex); + return result; +} + +static ssize_t uwb_dev_LQE_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_beca_e *bce = uwb_dev->bce; + ssize_t result; + + /* is this a local device? */ + if (bce == NULL) + return 0; + mutex_lock(&bce->mutex); + result = stats_store(&uwb_dev->bce->lqe_stats, buf, size); + mutex_unlock(&bce->mutex); + return result; +} +static DEVICE_ATTR(LQE, S_IRUGO | S_IWUSR, uwb_dev_LQE_show, uwb_dev_LQE_store); + +static ssize_t uwb_dev_RSSI_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_beca_e *bce = uwb_dev->bce; + size_t result; + + /* is this a local device? */ + if (bce == NULL) + return 0; + mutex_lock(&bce->mutex); + result = stats_show(&uwb_dev->bce->rssi_stats, buf); + mutex_unlock(&bce->mutex); + return result; +} + +static ssize_t uwb_dev_RSSI_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_beca_e *bce = uwb_dev->bce; + ssize_t result; + + /* is this a local device? */ + if (bce == NULL) + return 0; + mutex_lock(&bce->mutex); + result = stats_store(&uwb_dev->bce->rssi_stats, buf, size); + mutex_unlock(&bce->mutex); + return result; +} +static DEVICE_ATTR(RSSI, S_IRUGO | S_IWUSR, uwb_dev_RSSI_show, uwb_dev_RSSI_store); + + +static struct attribute *dev_attrs[] = { + &dev_attr_EUI_48.attr, + &dev_attr_DevAddr.attr, + &dev_attr_BPST.attr, + &dev_attr_IEs.attr, + &dev_attr_LQE.attr, + &dev_attr_RSSI.attr, + NULL, +}; + +static struct attribute_group dev_attr_group = { + .name = "uwb", + .attrs = dev_attrs, +}; + +static struct attribute_group *groups[] = { + &dev_attr_group, + NULL, +}; + +/** + * Device SYSFS registration + * + * + */ +static int __uwb_dev_sys_add(struct uwb_dev *uwb_dev, struct device *parent_dev) +{ + int result; + struct device *dev; + + d_fnstart(4, NULL, "(uwb_dev %p parent_dev %p)\n", uwb_dev, parent_dev); + BUG_ON(parent_dev == NULL); + + dev = &uwb_dev->dev; + dev->groups = groups; + dev->parent = parent_dev; + dev_set_drvdata(dev, uwb_dev); + + result = device_add(dev); + d_fnend(4, NULL, "(uwb_dev %p parent_dev %p) = %d\n", uwb_dev, parent_dev, result); + return result; +} + + +static void __uwb_dev_sys_rm(struct uwb_dev *uwb_dev) +{ + d_fnstart(4, NULL, "(uwb_dev %p)\n", uwb_dev); + dev_set_drvdata(&uwb_dev->dev, NULL); + device_del(&uwb_dev->dev); + d_fnend(4, NULL, "(uwb_dev %p) = void\n", uwb_dev); +} + + +/** + * Register and initialize a new UWB device + * + * Did you call uwb_dev_init() on it? + * + * @parent_rc: is the parent radio controller who has the link to the + * device. When registering the UWB device that is a UWB + * Radio Controller, we point back to it. + * + * If registering the device that is part of a radio, caller has set + * rc->uwb_dev->dev. Otherwise it is to be left NULL--a new one will + * be allocated. + */ +int uwb_dev_add(struct uwb_dev *uwb_dev, struct device *parent_dev, + struct uwb_rc *parent_rc) +{ + int result; + struct device *dev; + + BUG_ON(uwb_dev == NULL); + BUG_ON(parent_dev == NULL); + BUG_ON(parent_rc == NULL); + + mutex_lock(&uwb_dev->mutex); + dev = &uwb_dev->dev; + uwb_dev->rc = parent_rc; + if (strlen(dev_name(dev)) == 0) /* radios print their own! */ + uwb_mac_addr_print((char *)dev_name(dev), strlen(dev_name(dev)), + &uwb_dev->mac_addr); + result = __uwb_dev_sys_add(uwb_dev, parent_dev); + if (result < 0) + printk(KERN_ERR "UWB: unable to register dev %s with sysfs: %d\n", + dev_name(dev), result); + mutex_unlock(&uwb_dev->mutex); + return result; +} + + +void uwb_dev_rm(struct uwb_dev *uwb_dev) +{ + mutex_lock(&uwb_dev->mutex); + __uwb_dev_sys_rm(uwb_dev); + mutex_unlock(&uwb_dev->mutex); +} + + +static +int __uwb_dev_try_get(struct device *dev, void *__target_uwb_dev) +{ + struct uwb_dev *target_uwb_dev = __target_uwb_dev; + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + if (uwb_dev == target_uwb_dev) { + uwb_dev_get(uwb_dev); + return 1; + } else + return 0; +} + + +/** + * Given a UWB device descriptor, validate and refcount it + * + * @returns NULL if the device does not exist or is quiescing; the ptr to + * it otherwise. + */ +struct uwb_dev *uwb_dev_try_get(struct uwb_rc *rc, struct uwb_dev *uwb_dev) +{ + if (uwb_dev_for_each(rc, __uwb_dev_try_get, uwb_dev)) + return uwb_dev; + else + return NULL; +} +EXPORT_SYMBOL_GPL(uwb_dev_try_get); + + +/** + * Remove a device from the system [grunt for other functions] + */ +int __uwb_dev_offair(struct uwb_dev *uwb_dev, struct uwb_rc *rc) +{ + struct device *dev = &uwb_dev->dev; + char macbuf[UWB_ADDR_STRSIZE], devbuf[UWB_ADDR_STRSIZE]; + + d_fnstart(3, NULL, "(dev %p [uwb_dev %p], uwb_rc %p)\n", dev, uwb_dev, rc); + uwb_mac_addr_print(macbuf, sizeof(macbuf), &uwb_dev->mac_addr); + uwb_dev_addr_print(devbuf, sizeof(devbuf), &uwb_dev->dev_addr); + dev_info(dev, "uwb device (mac %s dev %s) disconnected from %s %s\n", + macbuf, devbuf, + rc? rc->uwb_dev.dev.parent->bus->name : "n/a", + rc? dev_name(rc->uwb_dev.dev.parent) : ""); + uwb_dev_rm(uwb_dev); + uwb_dev_put(uwb_dev); /* for the creation in _onair() */ + d_fnend(3, NULL, "(dev %p [uwb_dev %p], uwb_rc %p) = 0\n", dev, uwb_dev, rc); + return 0; +} + + +/** + * A device went off the air, clean up after it! + * + * This is called by the UWB Daemon (through the beacon purge function + * uwb_bcn_cache_purge) when it is detected that a device has been in + * radio silence for a while. + * + * If this device is actually a local radio controller we don't need + * to go through the offair process, as it is not registered as that. + * + * NOTE: uwb_bcn_cache.mutex is held! + */ +void uwbd_dev_offair(struct uwb_beca_e *bce) +{ + struct uwb_dev *uwb_dev; + + uwb_dev = bce->uwb_dev; + if (uwb_dev) { + uwb_notify(uwb_dev->rc, uwb_dev, UWB_NOTIF_OFFAIR); + __uwb_dev_offair(uwb_dev, uwb_dev->rc); + } +} + + +/** + * A device went on the air, start it up! + * + * This is called by the UWB Daemon when it is detected that a device + * has popped up in the radio range of the radio controller. + * + * It will just create the freaking device, register the beacon and + * stuff and yatla, done. + * + * + * NOTE: uwb_beca.mutex is held, bce->mutex is held + */ +void uwbd_dev_onair(struct uwb_rc *rc, struct uwb_beca_e *bce) +{ + int result; + struct device *dev = &rc->uwb_dev.dev; + struct uwb_dev *uwb_dev; + char macbuf[UWB_ADDR_STRSIZE], devbuf[UWB_ADDR_STRSIZE]; + + uwb_mac_addr_print(macbuf, sizeof(macbuf), bce->mac_addr); + uwb_dev_addr_print(devbuf, sizeof(devbuf), &bce->dev_addr); + uwb_dev = kcalloc(1, sizeof(*uwb_dev), GFP_KERNEL); + if (uwb_dev == NULL) { + dev_err(dev, "new device %s: Cannot allocate memory\n", + macbuf); + return; + } + uwb_dev_init(uwb_dev); /* This sets refcnt to one, we own it */ + uwb_dev->mac_addr = *bce->mac_addr; + uwb_dev->dev_addr = bce->dev_addr; + result = uwb_dev_add(uwb_dev, &rc->uwb_dev.dev, rc); + if (result < 0) { + dev_err(dev, "new device %s: cannot instantiate device\n", + macbuf); + goto error_dev_add; + } + /* plug the beacon cache */ + bce->uwb_dev = uwb_dev; + uwb_dev->bce = bce; + uwb_bce_get(bce); /* released in uwb_dev_sys_release() */ + dev_info(dev, "uwb device (mac %s dev %s) connected to %s %s\n", + macbuf, devbuf, rc->uwb_dev.dev.parent->bus->name, + dev_name(rc->uwb_dev.dev.parent)); + uwb_notify(rc, uwb_dev, UWB_NOTIF_ONAIR); + return; + +error_dev_add: + kfree(uwb_dev); + return; +} + +/** + * Iterate over the list of UWB devices, calling a @function on each + * + * See docs for bus_for_each().... + * + * @rc: radio controller for the devices. + * @function: function to call. + * @priv: data to pass to @function. + * @returns: 0 if no invocation of function() returned a value + * different to zero. That value otherwise. + */ +int uwb_dev_for_each(struct uwb_rc *rc, uwb_dev_for_each_f function, void *priv) +{ + return device_for_each_child(&rc->uwb_dev.dev, priv, function); +} +EXPORT_SYMBOL_GPL(uwb_dev_for_each); diff --git a/drivers/uwb/lc-rc.c b/drivers/uwb/lc-rc.c new file mode 100644 index 000000000000..f314b98eab61 --- /dev/null +++ b/drivers/uwb/lc-rc.c @@ -0,0 +1,485 @@ +/* + * Ultra Wide Band + * Life cycle of radio controllers + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * + * A UWB radio controller is also a UWB device, so it embeds one... + * + * List of RCs comes from the 'struct class uwb_rc_class'. + */ + +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/random.h> +#include <linux/kdev_t.h> +#include <linux/etherdevice.h> +#include <linux/usb.h> + +#define D_LOCAL 1 +#include <linux/uwb/debug.h> +#include "uwb-internal.h" + + +struct uwb_rcs { + size_t count; + struct mutex mutex; +}; + +/** List of UWB RCs we keep around. */ +static +struct uwb_rcs uwb_rcs = { + .count = 0, + .mutex = __MUTEX_INITIALIZER(uwb_rcs.mutex), +}; + + +/** + * Release the backing device of a uwb_rc that has been dynamically allocated. + */ +static void uwb_rc_sys_release(struct device *dev) +{ + struct uwb_dev *uwb_dev = container_of(dev, struct uwb_dev, dev); + struct uwb_rc *rc = container_of(uwb_dev, struct uwb_rc, uwb_dev); + + uwb_rc_neh_destroy(rc); + uwb_rc_ie_release(rc); + d_printf(1, dev, "freed uwb_rc %p\n", rc); + kfree(rc); +} + + +void uwb_rc_init(struct uwb_rc *rc) +{ + struct uwb_dev *uwb_dev = &rc->uwb_dev; + + uwb_dev_init(uwb_dev); + rc->uwb_dev.dev.class = &uwb_rc_class; + rc->uwb_dev.dev.release = uwb_rc_sys_release; + uwb_rc_neh_create(rc); + rc->beaconing = -1; + rc->scan_type = UWB_SCAN_DISABLED; + INIT_LIST_HEAD(&rc->notifs_chain.list); + mutex_init(&rc->notifs_chain.mutex); + uwb_drp_avail_init(rc); + uwb_rc_ie_init(rc); + uwb_rsv_init(rc); + uwb_rc_pal_init(rc); +} +EXPORT_SYMBOL_GPL(uwb_rc_init); + + +struct uwb_rc *uwb_rc_alloc(void) +{ + struct uwb_rc *rc; + rc = kzalloc(sizeof(*rc), GFP_KERNEL); + if (rc == NULL) + return NULL; + uwb_rc_init(rc); + return rc; +} +EXPORT_SYMBOL_GPL(uwb_rc_alloc); + +static struct attribute *rc_attrs[] = { + &dev_attr_mac_address.attr, + &dev_attr_scan.attr, + &dev_attr_beacon.attr, + &dev_attr_event_stats.attr, + NULL, +}; + +static struct attribute_group rc_attr_group = { + .name = "uwb_rc", + .attrs = rc_attrs, +}; + +/* + * Registration of sysfs specific stuff + */ +static int uwb_rc_sys_add(struct uwb_rc *rc) +{ + return sysfs_create_group(&rc->uwb_dev.dev.kobj, &rc_attr_group); +} + + +static void __uwb_rc_sys_rm(struct uwb_rc *rc) +{ + sysfs_remove_group(&rc->uwb_dev.dev.kobj, &rc_attr_group); +} + +/** + * uwb_rc_mac_addr_setup - get an RC's EUI-48 address or set it + * @rc: the radio controller. + * + * If the EUI-48 address is 00:00:00:00:00:00 or FF:FF:FF:FF:FF:FF + * then a random locally administered EUI-48 is generated and set on + * the device. The probability of address collisions is sufficiently + * unlikely (1/2^40 = 9.1e-13) that they're not checked for. + */ +static +int uwb_rc_mac_addr_setup(struct uwb_rc *rc) +{ + int result; + struct device *dev = &rc->uwb_dev.dev; + struct uwb_dev *uwb_dev = &rc->uwb_dev; + char devname[UWB_ADDR_STRSIZE]; + struct uwb_mac_addr addr; + + result = uwb_rc_mac_addr_get(rc, &addr); + if (result < 0) { + dev_err(dev, "cannot retrieve UWB EUI-48 address: %d\n", result); + return result; + } + + if (uwb_mac_addr_unset(&addr) || uwb_mac_addr_bcast(&addr)) { + addr.data[0] = 0x02; /* locally adminstered and unicast */ + get_random_bytes(&addr.data[1], sizeof(addr.data)-1); + + result = uwb_rc_mac_addr_set(rc, &addr); + if (result < 0) { + uwb_mac_addr_print(devname, sizeof(devname), &addr); + dev_err(dev, "cannot set EUI-48 address %s: %d\n", + devname, result); + return result; + } + } + uwb_dev->mac_addr = addr; + return 0; +} + + + +static int uwb_rc_setup(struct uwb_rc *rc) +{ + int result; + struct device *dev = &rc->uwb_dev.dev; + + result = uwb_rc_reset(rc); + if (result < 0) { + dev_err(dev, "cannot reset UWB radio: %d\n", result); + goto error; + } + result = uwb_rc_mac_addr_setup(rc); + if (result < 0) { + dev_err(dev, "cannot setup UWB MAC address: %d\n", result); + goto error; + } + result = uwb_rc_dev_addr_assign(rc); + if (result < 0) { + dev_err(dev, "cannot assign UWB DevAddr: %d\n", result); + goto error; + } + result = uwb_rc_ie_setup(rc); + if (result < 0) { + dev_err(dev, "cannot setup IE subsystem: %d\n", result); + goto error_ie_setup; + } + result = uwb_rc_set_identification_ie(rc); + if (result < 0) { + dev_err(dev, "cannot set Identification IE: %d\n", + result); + goto error_set_id_ie; + } + result = uwb_rsv_setup(rc); + if (result < 0) { + dev_err(dev, "cannot setup reservation subsystem: %d\n", result); + goto error_rsv_setup; + } + uwb_dbg_add_rc(rc); + return 0; + +error_rsv_setup: +error_set_id_ie: + uwb_rc_ie_release(rc); +error_ie_setup: +error: + return result; +} + + +/** + * Register a new UWB radio controller + * + * Did you call uwb_rc_init() on your rc? + * + * We assume that this is being called with a > 0 refcount on + * it [through ops->{get|put}_device(). We'll take our own, though. + * + * @parent_dev is our real device, the one that provides the actual UWB device + */ +int uwb_rc_add(struct uwb_rc *rc, struct device *parent_dev, void *priv, + int (*cmd)(struct uwb_rc *, const struct uwb_rccb *, size_t), + int (*filter_cmd)(struct uwb_rc *, struct uwb_rccb **, size_t *), + int (*filter_event)(struct uwb_rc *, struct uwb_rceb **, + const size_t, size_t *, size_t *)) +{ + int result; + size_t rc_count; + struct device *dev; + char macbuf[UWB_ADDR_STRSIZE], devbuf[UWB_ADDR_STRSIZE]; + + mutex_lock(&uwb_rcs.mutex); + rc_count = uwb_rcs.count++; + mutex_unlock(&uwb_rcs.mutex); + + dev = &rc->uwb_dev.dev; + dev_set_name(dev, "uwb%d", (int)rc_count); + + rc->priv = priv; + rc->cmd = cmd; + rc->filter_cmd = filter_cmd; + rc->filter_event = filter_event; + + result = uwb_rc_setup(rc); + if (result < 0) { + dev_err(dev, "cannot setup UWB radio controller: %d\n", result); + goto error_rc_setup; + } + + result = uwb_dev_add(&rc->uwb_dev, parent_dev, rc); + if (result < 0 && result != -EADDRNOTAVAIL) + goto error_dev_add; + + result = uwb_rc_sys_add(rc); + if (result < 0) { + dev_err(parent_dev, "cannot register UWB radio controller " + "dev attributes: %d\n", result); + goto error_sys_add; + } + + uwb_mac_addr_print(macbuf, sizeof(macbuf), &rc->uwb_dev.mac_addr); + uwb_dev_addr_print(devbuf, sizeof(devbuf), &rc->uwb_dev.dev_addr); + dev_info(dev, + "new uwb radio controller (mac %s dev %s) on %s %s\n", + macbuf, devbuf, parent_dev->bus->name, dev_name(parent_dev)); + rc->ready = 1; + return 0; + +error_sys_add: + uwb_dev_rm(&rc->uwb_dev); +error_dev_add: +error_rc_setup: + return result; +} +EXPORT_SYMBOL_GPL(uwb_rc_add); + + +static int uwb_dev_offair_helper(struct device *dev, void *priv) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + + return __uwb_dev_offair(uwb_dev, uwb_dev->rc); +} + +/* + * Remove a Radio Controller; stop beaconing/scanning, disconnect all children + */ +void uwb_rc_rm(struct uwb_rc *rc) +{ + rc->ready = 0; + + uwb_dbg_del_rc(rc); + uwb_rsv_cleanup(rc); + uwb_rc_ie_rm(rc, UWB_IDENTIFICATION_IE); + if (rc->beaconing >= 0) + uwb_rc_beacon(rc, -1, 0); + if (rc->scan_type != UWB_SCAN_DISABLED) + uwb_rc_scan(rc, rc->scanning, UWB_SCAN_DISABLED, 0); + uwb_rc_reset(rc); + + uwb_dev_lock(&rc->uwb_dev); + rc->priv = NULL; + rc->cmd = NULL; + uwb_dev_unlock(&rc->uwb_dev); + mutex_lock(&uwb_beca.mutex); + uwb_dev_for_each(rc, uwb_dev_offair_helper, NULL); + __uwb_rc_sys_rm(rc); + mutex_unlock(&uwb_beca.mutex); + uwb_dev_rm(&rc->uwb_dev); +} +EXPORT_SYMBOL_GPL(uwb_rc_rm); + +static int find_rc_try_get(struct device *dev, void *data) +{ + struct uwb_rc *target_rc = data; + struct uwb_rc *rc = dev_get_drvdata(dev); + + if (rc == NULL) { + WARN_ON(1); + return 0; + } + if (rc == target_rc) { + if (rc->ready == 0) + return 0; + else + return 1; + } + return 0; +} + +/** + * Given a radio controller descriptor, validate and refcount it + * + * @returns NULL if the rc does not exist or is quiescing; the ptr to + * it otherwise. + */ +struct uwb_rc *__uwb_rc_try_get(struct uwb_rc *target_rc) +{ + struct device *dev; + struct uwb_rc *rc = NULL; + + dev = class_find_device(&uwb_rc_class, NULL, target_rc, + find_rc_try_get); + if (dev) { + rc = dev_get_drvdata(dev); + __uwb_rc_get(rc); + } + return rc; +} +EXPORT_SYMBOL_GPL(__uwb_rc_try_get); + +/* + * RC get for external refcount acquirers... + * + * Increments the refcount of the device and it's backend modules + */ +static inline struct uwb_rc *uwb_rc_get(struct uwb_rc *rc) +{ + if (rc->ready == 0) + return NULL; + uwb_dev_get(&rc->uwb_dev); + return rc; +} + +static int find_rc_grandpa(struct device *dev, void *data) +{ + struct device *grandpa_dev = data; + struct uwb_rc *rc = dev_get_drvdata(dev); + + if (rc->uwb_dev.dev.parent->parent == grandpa_dev) { + rc = uwb_rc_get(rc); + return 1; + } + return 0; +} + +/** + * Locate and refcount a radio controller given a common grand-parent + * + * @grandpa_dev Pointer to the 'grandparent' device structure. + * @returns NULL If the rc does not exist or is quiescing; the ptr to + * it otherwise, properly referenced. + * + * The Radio Control interface (or the UWB Radio Controller) is always + * an interface of a device. The parent is the interface, the + * grandparent is the device that encapsulates the interface. + * + * There is no need to lock around as the "grandpa" would be + * refcounted by the target, and to remove the referemes, the + * uwb_rc_class->sem would have to be taken--we hold it, ergo we + * should be safe. + */ +struct uwb_rc *uwb_rc_get_by_grandpa(const struct device *grandpa_dev) +{ + struct device *dev; + struct uwb_rc *rc = NULL; + + dev = class_find_device(&uwb_rc_class, NULL, (void *)grandpa_dev, + find_rc_grandpa); + if (dev) + rc = dev_get_drvdata(dev); + return rc; +} +EXPORT_SYMBOL_GPL(uwb_rc_get_by_grandpa); + +/** + * Find a radio controller by device address + * + * @returns the pointer to the radio controller, properly referenced + */ +static int find_rc_dev(struct device *dev, void *data) +{ + struct uwb_dev_addr *addr = data; + struct uwb_rc *rc = dev_get_drvdata(dev); + + if (rc == NULL) { + WARN_ON(1); + return 0; + } + if (!uwb_dev_addr_cmp(&rc->uwb_dev.dev_addr, addr)) { + rc = uwb_rc_get(rc); + return 1; + } + return 0; +} + +struct uwb_rc *uwb_rc_get_by_dev(const struct uwb_dev_addr *addr) +{ + struct device *dev; + struct uwb_rc *rc = NULL; + + dev = class_find_device(&uwb_rc_class, NULL, (void *)addr, + find_rc_dev); + if (dev) + rc = dev_get_drvdata(dev); + + return rc; +} +EXPORT_SYMBOL_GPL(uwb_rc_get_by_dev); + +/** + * Drop a reference on a radio controller + * + * This is the version that should be done by entities external to the + * UWB Radio Control stack (ie: clients of the API). + */ +void uwb_rc_put(struct uwb_rc *rc) +{ + __uwb_rc_put(rc); +} +EXPORT_SYMBOL_GPL(uwb_rc_put); + +/* + * + * + */ +ssize_t uwb_rc_print_IEs(struct uwb_rc *uwb_rc, char *buf, size_t size) +{ + ssize_t result; + struct uwb_rc_evt_get_ie *ie_info; + struct uwb_buf_ctx ctx; + + result = uwb_rc_get_ie(uwb_rc, &ie_info); + if (result < 0) + goto error_get_ie; + ctx.buf = buf; + ctx.size = size; + ctx.bytes = 0; + uwb_ie_for_each(&uwb_rc->uwb_dev, uwb_ie_dump_hex, &ctx, + ie_info->IEData, result - sizeof(*ie_info)); + result = ctx.bytes; + kfree(ie_info); +error_get_ie: + return result; +} + diff --git a/drivers/uwb/neh.c b/drivers/uwb/neh.c new file mode 100644 index 000000000000..655734cf1d47 --- /dev/null +++ b/drivers/uwb/neh.c @@ -0,0 +1,615 @@ +/* + * WUSB Wire Adapter: Radio Control Interface (WUSB[8]) + * Notification and Event Handling + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * The RC interface of the Host Wire Adapter (USB dongle) or WHCI PCI + * card delivers a stream of notifications and events to the + * notification end event endpoint or area. This code takes care of + * getting a buffer with that data, breaking it up in separate + * notifications and events and then deliver those. + * + * Events are answers to commands and they carry a context ID that + * associates them to the command. Notifications are that, + * notifications, they come out of the blue and have a context ID of + * zero. Think of the context ID kind of like a handler. The + * uwb_rc_neh_* code deals with managing context IDs. + * + * This is why you require a handle to operate on a UWB host. When you + * open a handle a context ID is assigned to you. + * + * So, as it is done is: + * + * 1. Add an event handler [uwb_rc_neh_add()] (assigns a ctx id) + * 2. Issue command [rc->cmd(rc, ...)] + * 3. Arm the timeout timer [uwb_rc_neh_arm()] + * 4, Release the reference to the neh [uwb_rc_neh_put()] + * 5. Wait for the callback + * 6. Command result (RCEB) is passed to the callback + * + * If (2) fails, you should remove the handle [uwb_rc_neh_rm()] + * instead of arming the timer. + * + * Handles are for using in *serialized* code, single thread. + * + * When the notification/event comes, the IRQ handler/endpoint + * callback passes the data read to uwb_rc_neh_grok() which will break + * it up in a discrete series of events, look up who is listening for + * them and execute the pertinent callbacks. + * + * If the reader detects an error while reading the data stream, call + * uwb_rc_neh_error(). + * + * CONSTRAINTS/ASSUMPTIONS: + * + * - Most notifications/events are small (less thank .5k), copying + * around is ok. + * + * - Notifications/events are ALWAYS smaller than PAGE_SIZE + * + * - Notifications/events always come in a single piece (ie: a buffer + * will always contain entire notifications/events). + * + * - we cannot know in advance how long each event is (because they + * lack a length field in their header--smart move by the standards + * body, btw). So we need a facility to get the event size given the + * header. This is what the EST code does (notif/Event Size + * Tables), check nest.c--as well, you can associate the size to + * the handle [w/ neh->extra_size()]. + * + * - Most notifications/events are fixed size; only a few are variable + * size (NEST takes care of that). + * + * - Listeners of events expect them, so they usually provide a + * buffer, as they know the size. Listeners to notifications don't, + * so we allocate their buffers dynamically. + */ +#include <linux/kernel.h> +#include <linux/timer.h> +#include <linux/err.h> + +#include "uwb-internal.h" +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +/* + * UWB Radio Controller Notification/Event Handle + * + * Represents an entity waiting for an event coming from the UWB Radio + * Controller with a given context id (context) and type (evt_type and + * evt). On reception of the notification/event, the callback (cb) is + * called with the event. + * + * If the timer expires before the event is received, the callback is + * called with -ETIMEDOUT as the event size. + */ +struct uwb_rc_neh { + struct kref kref; + + struct uwb_rc *rc; + u8 evt_type; + __le16 evt; + u8 context; + uwb_rc_neh_cb_f cb; + void *arg; + + struct timer_list timer; + struct list_head list_node; +}; + +static void uwb_rc_neh_timer(unsigned long arg); + +static void uwb_rc_neh_release(struct kref *kref) +{ + struct uwb_rc_neh *neh = container_of(kref, struct uwb_rc_neh, kref); + + kfree(neh); +} + +static void uwb_rc_neh_get(struct uwb_rc_neh *neh) +{ + kref_get(&neh->kref); +} + +/** + * uwb_rc_neh_put - release reference to a neh + * @neh: the neh + */ +void uwb_rc_neh_put(struct uwb_rc_neh *neh) +{ + kref_put(&neh->kref, uwb_rc_neh_release); +} + + +/** + * Assigns @neh a context id from @rc's pool + * + * @rc: UWB Radio Controller descriptor; @rc->neh_lock taken + * @neh: Notification/Event Handle + * @returns 0 if context id was assigned ok; < 0 errno on error (if + * all the context IDs are taken). + * + * (assumes @wa is locked). + * + * NOTE: WUSB spec reserves context ids 0x00 for notifications and + * 0xff is invalid, so they must not be used. Initialization + * fills up those two in the bitmap so they are not allocated. + * + * We spread the allocation around to reduce the posiblity of two + * consecutive opened @neh's getting the same context ID assigned (to + * avoid surprises with late events that timed out long time ago). So + * first we search from where @rc->ctx_roll is, if not found, we + * search from zero. + */ +static +int __uwb_rc_ctx_get(struct uwb_rc *rc, struct uwb_rc_neh *neh) +{ + int result; + result = find_next_zero_bit(rc->ctx_bm, UWB_RC_CTX_MAX, + rc->ctx_roll++); + if (result < UWB_RC_CTX_MAX) + goto found; + result = find_first_zero_bit(rc->ctx_bm, UWB_RC_CTX_MAX); + if (result < UWB_RC_CTX_MAX) + goto found; + return -ENFILE; +found: + set_bit(result, rc->ctx_bm); + neh->context = result; + return 0; +} + + +/** Releases @neh's context ID back to @rc (@rc->neh_lock is locked). */ +static +void __uwb_rc_ctx_put(struct uwb_rc *rc, struct uwb_rc_neh *neh) +{ + struct device *dev = &rc->uwb_dev.dev; + if (neh->context == 0) + return; + if (test_bit(neh->context, rc->ctx_bm) == 0) { + dev_err(dev, "context %u not set in bitmap\n", + neh->context); + WARN_ON(1); + } + clear_bit(neh->context, rc->ctx_bm); + neh->context = 0; +} + +/** + * uwb_rc_neh_add - add a neh for a radio controller command + * @rc: the radio controller + * @cmd: the radio controller command + * @expected_type: the type of the expected response event + * @expected_event: the expected event ID + * @cb: callback for when the event is received + * @arg: argument for the callback + * + * Creates a neh and adds it to the list of those waiting for an + * event. A context ID will be assigned to the command. + */ +struct uwb_rc_neh *uwb_rc_neh_add(struct uwb_rc *rc, struct uwb_rccb *cmd, + u8 expected_type, u16 expected_event, + uwb_rc_neh_cb_f cb, void *arg) +{ + int result; + unsigned long flags; + struct device *dev = &rc->uwb_dev.dev; + struct uwb_rc_neh *neh; + + neh = kzalloc(sizeof(*neh), GFP_KERNEL); + if (neh == NULL) { + result = -ENOMEM; + goto error_kzalloc; + } + + kref_init(&neh->kref); + INIT_LIST_HEAD(&neh->list_node); + init_timer(&neh->timer); + neh->timer.function = uwb_rc_neh_timer; + neh->timer.data = (unsigned long)neh; + + neh->rc = rc; + neh->evt_type = expected_type; + neh->evt = cpu_to_le16(expected_event); + neh->cb = cb; + neh->arg = arg; + + spin_lock_irqsave(&rc->neh_lock, flags); + result = __uwb_rc_ctx_get(rc, neh); + if (result >= 0) { + cmd->bCommandContext = neh->context; + list_add_tail(&neh->list_node, &rc->neh_list); + uwb_rc_neh_get(neh); + } + spin_unlock_irqrestore(&rc->neh_lock, flags); + if (result < 0) + goto error_ctx_get; + + return neh; + +error_ctx_get: + kfree(neh); +error_kzalloc: + dev_err(dev, "cannot open handle to radio controller: %d\n", result); + return ERR_PTR(result); +} + +static void __uwb_rc_neh_rm(struct uwb_rc *rc, struct uwb_rc_neh *neh) +{ + del_timer(&neh->timer); + __uwb_rc_ctx_put(rc, neh); + list_del(&neh->list_node); +} + +/** + * uwb_rc_neh_rm - remove a neh. + * @rc: the radio controller + * @neh: the neh to remove + * + * Remove an active neh immediately instead of waiting for the event + * (or a time out). + */ +void uwb_rc_neh_rm(struct uwb_rc *rc, struct uwb_rc_neh *neh) +{ + unsigned long flags; + + spin_lock_irqsave(&rc->neh_lock, flags); + __uwb_rc_neh_rm(rc, neh); + spin_unlock_irqrestore(&rc->neh_lock, flags); + + uwb_rc_neh_put(neh); +} + +/** + * uwb_rc_neh_arm - arm an event handler timeout timer + * + * @rc: UWB Radio Controller + * @neh: Notification/event handler for @rc + * + * The timer is only armed if the neh is active. + */ +void uwb_rc_neh_arm(struct uwb_rc *rc, struct uwb_rc_neh *neh) +{ + unsigned long flags; + + spin_lock_irqsave(&rc->neh_lock, flags); + if (neh->context) + mod_timer(&neh->timer, + jiffies + msecs_to_jiffies(UWB_RC_CMD_TIMEOUT_MS)); + spin_unlock_irqrestore(&rc->neh_lock, flags); +} + +static void uwb_rc_neh_cb(struct uwb_rc_neh *neh, struct uwb_rceb *rceb, size_t size) +{ + (*neh->cb)(neh->rc, neh->arg, rceb, size); + uwb_rc_neh_put(neh); +} + +static bool uwb_rc_neh_match(struct uwb_rc_neh *neh, const struct uwb_rceb *rceb) +{ + return neh->evt_type == rceb->bEventType + && neh->evt == rceb->wEvent + && neh->context == rceb->bEventContext; +} + +/** + * Find the handle waiting for a RC Radio Control Event + * + * @rc: UWB Radio Controller + * @rceb: Pointer to the RCEB buffer + * @event_size: Pointer to the size of the RCEB buffer. Might be + * adjusted to take into account the @neh->extra_size + * settings. + * + * If the listener has no buffer (NULL buffer), one is allocated for + * the right size (the amount of data received). @neh->ptr will point + * to the event payload, which always starts with a 'struct + * uwb_rceb'. kfree() it when done. + */ +static +struct uwb_rc_neh *uwb_rc_neh_lookup(struct uwb_rc *rc, + const struct uwb_rceb *rceb) +{ + struct uwb_rc_neh *neh = NULL, *h; + unsigned long flags; + + spin_lock_irqsave(&rc->neh_lock, flags); + + list_for_each_entry(h, &rc->neh_list, list_node) { + if (uwb_rc_neh_match(h, rceb)) { + neh = h; + break; + } + } + + if (neh) + __uwb_rc_neh_rm(rc, neh); + + spin_unlock_irqrestore(&rc->neh_lock, flags); + + return neh; +} + + +/** + * Process notifications coming from the radio control interface + * + * @rc: UWB Radio Control Interface descriptor + * @neh: Notification/Event Handler @neh->ptr points to + * @uwb_evt->buffer. + * + * This function is called by the event/notif handling subsystem when + * notifications arrive (hwarc_probe() arms a notification/event handle + * that calls back this function for every received notification; this + * function then will rearm itself). + * + * Notification data buffers are dynamically allocated by the NEH + * handling code in neh.c [uwb_rc_neh_lookup()]. What is actually + * allocated is space to contain the notification data. + * + * Buffers are prefixed with a Radio Control Event Block (RCEB) as + * defined by the WUSB Wired-Adapter Radio Control interface. We + * just use it for the notification code. + * + * On each case statement we just transcode endianess of the different + * fields. We declare a pointer to a RCI definition of an event, and + * then to a UWB definition of the same event (which are the same, + * remember). Event if we use different pointers + */ +static +void uwb_rc_notif(struct uwb_rc *rc, struct uwb_rceb *rceb, ssize_t size) +{ + struct device *dev = &rc->uwb_dev.dev; + struct uwb_event *uwb_evt; + + if (size == -ESHUTDOWN) + return; + if (size < 0) { + dev_err(dev, "ignoring event with error code %zu\n", + size); + return; + } + + uwb_evt = kzalloc(sizeof(*uwb_evt), GFP_ATOMIC); + if (unlikely(uwb_evt == NULL)) { + dev_err(dev, "no memory to queue event 0x%02x/%04x/%02x\n", + rceb->bEventType, le16_to_cpu(rceb->wEvent), + rceb->bEventContext); + return; + } + uwb_evt->rc = __uwb_rc_get(rc); /* will be put by uwbd's uwbd_event_handle() */ + uwb_evt->rceb = rceb; + uwb_evt->size = size; + uwb_evt->ts_jiffies = jiffies; + + switch (le16_to_cpu(rceb->wEvent)) { + /* Trap some vendor specific events + * + * FIXME: move this to handling in ptc-est, where we + * register a NULL event handler for these two guys + * using the Intel IDs. + */ + case 0x0103: + dev_info(dev, "FIXME: DEVICE ADD\n"); + return; + case 0x0104: + dev_info(dev, "FIXME: DEVICE RM\n"); + return; + default: + break; + } + + uwbd_event_queue(uwb_evt); +} + +static void uwb_rc_neh_grok_event(struct uwb_rc *rc, struct uwb_rceb *rceb, size_t size) +{ + struct device *dev = &rc->uwb_dev.dev; + struct uwb_rc_neh *neh; + struct uwb_rceb *notif; + + if (rceb->bEventContext == 0) { + notif = kmalloc(size, GFP_ATOMIC); + if (notif) { + memcpy(notif, rceb, size); + uwb_rc_notif(rc, notif, size); + } else + dev_err(dev, "event 0x%02x/%04x/%02x (%zu bytes): no memory\n", + rceb->bEventType, le16_to_cpu(rceb->wEvent), + rceb->bEventContext, size); + } else { + neh = uwb_rc_neh_lookup(rc, rceb); + if (neh) + uwb_rc_neh_cb(neh, rceb, size); + else if (printk_ratelimit()) + dev_warn(dev, "event 0x%02x/%04x/%02x (%zu bytes): nobody cared\n", + rceb->bEventType, le16_to_cpu(rceb->wEvent), + rceb->bEventContext, size); + } +} + +/** + * Given a buffer with one or more UWB RC events/notifications, break + * them up and dispatch them. + * + * @rc: UWB Radio Controller + * @buf: Buffer with the stream of notifications/events + * @buf_size: Amount of data in the buffer + * + * Note each notification/event starts always with a 'struct + * uwb_rceb', so the minimum size if 4 bytes. + * + * The device may pass us events formatted differently than expected. + * These are first filtered, potentially creating a new event in a new + * memory location. If a new event is created by the filter it is also + * freed here. + * + * For each notif/event, tries to guess the size looking at the EST + * tables, then looks for a neh that is waiting for that event and if + * found, copies the payload to the neh's buffer and calls it back. If + * not, the data is ignored. + * + * Note that if we can't find a size description in the EST tables, we + * still might find a size in the 'neh' handle in uwb_rc_neh_lookup(). + * + * Assumptions: + * + * @rc->neh_lock is NOT taken + * + * We keep track of various sizes here: + * size: contains the size of the buffer that is processed for the + * incoming event. this buffer may contain events that are not + * formatted as WHCI. + * real_size: the actual space taken by this event in the buffer. + * We need to keep track of the real size of an event to be able to + * advance the buffer correctly. + * event_size: the size of the event as expected by the core layer + * [OR] the size of the event after filtering. if the filtering + * created a new event in a new memory location then this is + * effectively the size of a new event buffer + */ +void uwb_rc_neh_grok(struct uwb_rc *rc, void *buf, size_t buf_size) +{ + struct device *dev = &rc->uwb_dev.dev; + void *itr; + struct uwb_rceb *rceb; + size_t size, real_size, event_size; + int needtofree; + + d_fnstart(3, dev, "(rc %p buf %p %zu buf_size)\n", rc, buf, buf_size); + d_printf(2, dev, "groking event block: %zu bytes\n", buf_size); + itr = buf; + size = buf_size; + while (size > 0) { + if (size < sizeof(*rceb)) { + dev_err(dev, "not enough data in event buffer to " + "process incoming events (%zu left, minimum is " + "%zu)\n", size, sizeof(*rceb)); + break; + } + + rceb = itr; + if (rc->filter_event) { + needtofree = rc->filter_event(rc, &rceb, size, + &real_size, &event_size); + if (needtofree < 0 && needtofree != -ENOANO) { + dev_err(dev, "BUG: Unable to filter event " + "(0x%02x/%04x/%02x) from " + "device. \n", rceb->bEventType, + le16_to_cpu(rceb->wEvent), + rceb->bEventContext); + break; + } + } else + needtofree = -ENOANO; + /* do real processing if there was no filtering or the + * filtering didn't act */ + if (needtofree == -ENOANO) { + ssize_t ret = uwb_est_find_size(rc, rceb, size); + if (ret < 0) + break; + if (ret > size) { + dev_err(dev, "BUG: hw sent incomplete event " + "0x%02x/%04x/%02x (%zd bytes), only got " + "%zu bytes. We don't handle that.\n", + rceb->bEventType, le16_to_cpu(rceb->wEvent), + rceb->bEventContext, ret, size); + break; + } + real_size = event_size = ret; + } + uwb_rc_neh_grok_event(rc, rceb, event_size); + + if (needtofree == 1) + kfree(rceb); + + itr += real_size; + size -= real_size; + d_printf(2, dev, "consumed %zd bytes, %zu left\n", + event_size, size); + } + d_fnend(3, dev, "(rc %p buf %p %zu buf_size) = void\n", rc, buf, buf_size); +} +EXPORT_SYMBOL_GPL(uwb_rc_neh_grok); + + +/** + * The entity that reads from the device notification/event channel has + * detected an error. + * + * @rc: UWB Radio Controller + * @error: Errno error code + * + */ +void uwb_rc_neh_error(struct uwb_rc *rc, int error) +{ + struct uwb_rc_neh *neh, *next; + unsigned long flags; + + BUG_ON(error >= 0); + spin_lock_irqsave(&rc->neh_lock, flags); + list_for_each_entry_safe(neh, next, &rc->neh_list, list_node) { + __uwb_rc_neh_rm(rc, neh); + uwb_rc_neh_cb(neh, NULL, error); + } + spin_unlock_irqrestore(&rc->neh_lock, flags); +} +EXPORT_SYMBOL_GPL(uwb_rc_neh_error); + + +static void uwb_rc_neh_timer(unsigned long arg) +{ + struct uwb_rc_neh *neh = (struct uwb_rc_neh *)arg; + struct uwb_rc *rc = neh->rc; + unsigned long flags; + + spin_lock_irqsave(&rc->neh_lock, flags); + __uwb_rc_neh_rm(rc, neh); + spin_unlock_irqrestore(&rc->neh_lock, flags); + + uwb_rc_neh_cb(neh, NULL, -ETIMEDOUT); +} + +/** Initializes the @rc's neh subsystem + */ +void uwb_rc_neh_create(struct uwb_rc *rc) +{ + spin_lock_init(&rc->neh_lock); + INIT_LIST_HEAD(&rc->neh_list); + set_bit(0, rc->ctx_bm); /* 0 is reserved (see [WUSB] table 8-65) */ + set_bit(0xff, rc->ctx_bm); /* and 0xff is invalid */ + rc->ctx_roll = 1; +} + + +/** Release's the @rc's neh subsystem */ +void uwb_rc_neh_destroy(struct uwb_rc *rc) +{ + unsigned long flags; + struct uwb_rc_neh *neh, *next; + + spin_lock_irqsave(&rc->neh_lock, flags); + list_for_each_entry_safe(neh, next, &rc->neh_list, list_node) { + __uwb_rc_neh_rm(rc, neh); + uwb_rc_neh_put(neh); + } + spin_unlock_irqrestore(&rc->neh_lock, flags); +} diff --git a/drivers/uwb/pal.c b/drivers/uwb/pal.c new file mode 100644 index 000000000000..5508993a820e --- /dev/null +++ b/drivers/uwb/pal.c @@ -0,0 +1,71 @@ +/* + * UWB PAL support. + * + * Copyright (C) 2008 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/uwb.h> + +#include "uwb-internal.h" + +/** + * uwb_pal_init - initialize a UWB PAL + * @pal: the PAL to initialize + */ +void uwb_pal_init(struct uwb_pal *pal) +{ + INIT_LIST_HEAD(&pal->node); +} +EXPORT_SYMBOL_GPL(uwb_pal_init); + +/** + * uwb_pal_register - register a UWB PAL + * @rc: the radio controller the PAL will be using + * @pal: the PAL + * + * The PAL must be initialized with uwb_pal_init(). + */ +int uwb_pal_register(struct uwb_rc *rc, struct uwb_pal *pal) +{ + spin_lock(&rc->pal_lock); + list_add(&pal->node, &rc->pals); + spin_unlock(&rc->pal_lock); + + return 0; +} +EXPORT_SYMBOL_GPL(uwb_pal_register); + +/** + * uwb_pal_register - unregister a UWB PAL + * @rc: the radio controller the PAL was using + * @pal: the PAL + */ +void uwb_pal_unregister(struct uwb_rc *rc, struct uwb_pal *pal) +{ + spin_lock(&rc->pal_lock); + list_del(&pal->node); + spin_unlock(&rc->pal_lock); +} +EXPORT_SYMBOL_GPL(uwb_pal_unregister); + +/** + * uwb_rc_pal_init - initialize the PAL related parts of a radio controller + * @rc: the radio controller + */ +void uwb_rc_pal_init(struct uwb_rc *rc) +{ + spin_lock_init(&rc->pal_lock); + INIT_LIST_HEAD(&rc->pals); +} diff --git a/drivers/uwb/reset.c b/drivers/uwb/reset.c new file mode 100644 index 000000000000..70a95c9c2dee --- /dev/null +++ b/drivers/uwb/reset.c @@ -0,0 +1,319 @@ +/* + * Ultra Wide Band + * UWB basic command support and radio reset + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: + * + * - docs + * + * - Now we are serializing (using the uwb_dev->mutex) the command + * execution; it should be parallelized as much as possible some + * day. + */ +#include <linux/kernel.h> +#include <linux/err.h> + +#include "uwb-internal.h" +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +/** + * Command result codes (WUSB1.0[T8-69]) + */ +static +const char *__strerror[] = { + "success", + "failure", + "hardware failure", + "no more slots", + "beacon is too large", + "invalid parameter", + "unsupported power level", + "time out (wa) or invalid ie data (whci)", + "beacon size exceeded", + "cancelled", + "invalid state", + "invalid size", + "ack not recieved", + "no more asie notification", +}; + + +/** Return a string matching the given error code */ +const char *uwb_rc_strerror(unsigned code) +{ + if (code == 255) + return "time out"; + if (code >= ARRAY_SIZE(__strerror)) + return "unknown error"; + return __strerror[code]; +} + +static +int uwb_rc_cmd_async(struct uwb_rc *rc, const char *cmd_name, + struct uwb_rccb *cmd, size_t cmd_size, + u8 expected_type, u16 expected_event, + uwb_rc_neh_cb_f cb, void *arg) +{ + struct device *dev = &rc->uwb_dev.dev; + struct uwb_rc_neh *neh; + int needtofree = 0; + int result; + + uwb_dev_lock(&rc->uwb_dev); /* Protect against rc->priv being removed */ + if (rc->priv == NULL) { + uwb_dev_unlock(&rc->uwb_dev); + return -ESHUTDOWN; + } + + if (rc->filter_cmd) { + needtofree = rc->filter_cmd(rc, &cmd, &cmd_size); + if (needtofree < 0 && needtofree != -ENOANO) { + dev_err(dev, "%s: filter error: %d\n", + cmd_name, needtofree); + uwb_dev_unlock(&rc->uwb_dev); + return needtofree; + } + } + + neh = uwb_rc_neh_add(rc, cmd, expected_type, expected_event, cb, arg); + if (IS_ERR(neh)) { + result = PTR_ERR(neh); + goto out; + } + + result = rc->cmd(rc, cmd, cmd_size); + uwb_dev_unlock(&rc->uwb_dev); + if (result < 0) + uwb_rc_neh_rm(rc, neh); + else + uwb_rc_neh_arm(rc, neh); + uwb_rc_neh_put(neh); +out: + if (needtofree == 1) + kfree(cmd); + return result < 0 ? result : 0; +} + +struct uwb_rc_cmd_done_params { + struct completion completion; + struct uwb_rceb *reply; + ssize_t reply_size; +}; + +static void uwb_rc_cmd_done(struct uwb_rc *rc, void *arg, + struct uwb_rceb *reply, ssize_t reply_size) +{ + struct uwb_rc_cmd_done_params *p = (struct uwb_rc_cmd_done_params *)arg; + + if (reply_size > 0) { + if (p->reply) + reply_size = min(p->reply_size, reply_size); + else + p->reply = kmalloc(reply_size, GFP_ATOMIC); + + if (p->reply) + memcpy(p->reply, reply, reply_size); + else + reply_size = -ENOMEM; + } + p->reply_size = reply_size; + complete(&p->completion); +} + + +/** + * Generic function for issuing commands to the Radio Control Interface + * + * @rc: UWB Radio Control descriptor + * @cmd_name: Name of the command being issued (for error messages) + * @cmd: Pointer to rccb structure containing the command; + * normally you embed this structure as the first member of + * the full command structure. + * @cmd_size: Size of the whole command buffer pointed to by @cmd. + * @reply: Pointer to where to store the reply + * @reply_size: @reply's size + * @expected_type: Expected type in the return event + * @expected_event: Expected event code in the return event + * @preply: Here a pointer to where the event data is received will + * be stored. Once done with the data, free with kfree(). + * + * This function is generic; it works for commands that return a fixed + * and known size or for commands that return a variable amount of data. + * + * If a buffer is provided, that is used, although it could be chopped + * to the maximum size of the buffer. If the buffer is NULL, then one + * be allocated in *preply with the whole contents of the reply. + * + * @rc needs to be referenced + */ +static +ssize_t __uwb_rc_cmd(struct uwb_rc *rc, const char *cmd_name, + struct uwb_rccb *cmd, size_t cmd_size, + struct uwb_rceb *reply, size_t reply_size, + u8 expected_type, u16 expected_event, + struct uwb_rceb **preply) +{ + ssize_t result = 0; + struct device *dev = &rc->uwb_dev.dev; + struct uwb_rc_cmd_done_params params; + + init_completion(¶ms.completion); + params.reply = reply; + params.reply_size = reply_size; + + result = uwb_rc_cmd_async(rc, cmd_name, cmd, cmd_size, + expected_type, expected_event, + uwb_rc_cmd_done, ¶ms); + if (result) + return result; + + wait_for_completion(¶ms.completion); + + if (preply) + *preply = params.reply; + + if (params.reply_size < 0) + dev_err(dev, "%s: confirmation event 0x%02x/%04x/%02x " + "reception failed: %d\n", cmd_name, + expected_type, expected_event, cmd->bCommandContext, + (int)params.reply_size); + return params.reply_size; +} + + +/** + * Generic function for issuing commands to the Radio Control Interface + * + * @rc: UWB Radio Control descriptor + * @cmd_name: Name of the command being issued (for error messages) + * @cmd: Pointer to rccb structure containing the command; + * normally you embed this structure as the first member of + * the full command structure. + * @cmd_size: Size of the whole command buffer pointed to by @cmd. + * @reply: Pointer to the beginning of the confirmation event + * buffer. Normally bigger than an 'struct hwarc_rceb'. + * You need to fill out reply->bEventType and reply->wEvent (in + * cpu order) as the function will use them to verify the + * confirmation event. + * @reply_size: Size of the reply buffer + * + * The function checks that the length returned in the reply is at + * least as big as @reply_size; if not, it will be deemed an error and + * -EIO returned. + * + * @rc needs to be referenced + */ +ssize_t uwb_rc_cmd(struct uwb_rc *rc, const char *cmd_name, + struct uwb_rccb *cmd, size_t cmd_size, + struct uwb_rceb *reply, size_t reply_size) +{ + struct device *dev = &rc->uwb_dev.dev; + ssize_t result; + + result = __uwb_rc_cmd(rc, cmd_name, + cmd, cmd_size, reply, reply_size, + reply->bEventType, reply->wEvent, NULL); + + if (result > 0 && result < reply_size) { + dev_err(dev, "%s: not enough data returned for decoding reply " + "(%zu bytes received vs at least %zu needed)\n", + cmd_name, result, reply_size); + result = -EIO; + } + return result; +} +EXPORT_SYMBOL_GPL(uwb_rc_cmd); + + +/** + * Generic function for issuing commands to the Radio Control + * Interface that return an unknown amount of data + * + * @rc: UWB Radio Control descriptor + * @cmd_name: Name of the command being issued (for error messages) + * @cmd: Pointer to rccb structure containing the command; + * normally you embed this structure as the first member of + * the full command structure. + * @cmd_size: Size of the whole command buffer pointed to by @cmd. + * @expected_type: Expected type in the return event + * @expected_event: Expected event code in the return event + * @preply: Here a pointer to where the event data is received will + * be stored. Once done with the data, free with kfree(). + * + * The function checks that the length returned in the reply is at + * least as big as a 'struct uwb_rceb *'; if not, it will be deemed an + * error and -EIO returned. + * + * @rc needs to be referenced + */ +ssize_t uwb_rc_vcmd(struct uwb_rc *rc, const char *cmd_name, + struct uwb_rccb *cmd, size_t cmd_size, + u8 expected_type, u16 expected_event, + struct uwb_rceb **preply) +{ + return __uwb_rc_cmd(rc, cmd_name, cmd, cmd_size, NULL, 0, + expected_type, expected_event, preply); +} +EXPORT_SYMBOL_GPL(uwb_rc_vcmd); + + +/** + * Reset a UWB Host Controller (and all radio settings) + * + * @rc: Host Controller descriptor + * @returns: 0 if ok, < 0 errno code on error + * + * We put the command on kmalloc'ed memory as some arches cannot do + * USB from the stack. The reply event is copied from an stage buffer, + * so it can be in the stack. See WUSB1.0[8.6.2.4] for more details. + */ +int uwb_rc_reset(struct uwb_rc *rc) +{ + int result = -ENOMEM; + struct uwb_rc_evt_confirm reply; + struct uwb_rccb *cmd; + size_t cmd_size = sizeof(*cmd); + + mutex_lock(&rc->uwb_dev.mutex); + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + goto error_kzalloc; + cmd->bCommandType = UWB_RC_CET_GENERAL; + cmd->wCommand = cpu_to_le16(UWB_RC_CMD_RESET); + reply.rceb.bEventType = UWB_RC_CET_GENERAL; + reply.rceb.wEvent = UWB_RC_CMD_RESET; + result = uwb_rc_cmd(rc, "RESET", cmd, cmd_size, + &reply.rceb, sizeof(reply)); + if (result < 0) + goto error_cmd; + if (reply.bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(&rc->uwb_dev.dev, + "RESET: command execution failed: %s (%d)\n", + uwb_rc_strerror(reply.bResultCode), reply.bResultCode); + result = -EIO; + } +error_cmd: + kfree(cmd); +error_kzalloc: + mutex_unlock(&rc->uwb_dev.mutex); + return result; +} diff --git a/drivers/uwb/rsv.c b/drivers/uwb/rsv.c new file mode 100644 index 000000000000..03efa27c88ad --- /dev/null +++ b/drivers/uwb/rsv.c @@ -0,0 +1,677 @@ +/* + * UWB reservation management. + * + * Copyright (C) 2008 Cambridge Silicon Radio Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/uwb.h> + +#include "uwb-internal.h" + +static void uwb_rsv_timer(unsigned long arg); + +static const char *rsv_states[] = { + [UWB_RSV_STATE_NONE] = "none", + [UWB_RSV_STATE_O_INITIATED] = "initiated", + [UWB_RSV_STATE_O_PENDING] = "pending", + [UWB_RSV_STATE_O_MODIFIED] = "modified", + [UWB_RSV_STATE_O_ESTABLISHED] = "established", + [UWB_RSV_STATE_T_ACCEPTED] = "accepted", + [UWB_RSV_STATE_T_DENIED] = "denied", + [UWB_RSV_STATE_T_PENDING] = "pending", +}; + +static const char *rsv_types[] = { + [UWB_DRP_TYPE_ALIEN_BP] = "alien-bp", + [UWB_DRP_TYPE_HARD] = "hard", + [UWB_DRP_TYPE_SOFT] = "soft", + [UWB_DRP_TYPE_PRIVATE] = "private", + [UWB_DRP_TYPE_PCA] = "pca", +}; + +/** + * uwb_rsv_state_str - return a string for a reservation state + * @state: the reservation state. + */ +const char *uwb_rsv_state_str(enum uwb_rsv_state state) +{ + if (state < UWB_RSV_STATE_NONE || state >= UWB_RSV_STATE_LAST) + return "unknown"; + return rsv_states[state]; +} +EXPORT_SYMBOL_GPL(uwb_rsv_state_str); + +/** + * uwb_rsv_type_str - return a string for a reservation type + * @type: the reservation type + */ +const char *uwb_rsv_type_str(enum uwb_drp_type type) +{ + if (type < UWB_DRP_TYPE_ALIEN_BP || type > UWB_DRP_TYPE_PCA) + return "invalid"; + return rsv_types[type]; +} +EXPORT_SYMBOL_GPL(uwb_rsv_type_str); + +static void uwb_rsv_dump(struct uwb_rsv *rsv) +{ + struct device *dev = &rsv->rc->uwb_dev.dev; + struct uwb_dev_addr devaddr; + char owner[UWB_ADDR_STRSIZE], target[UWB_ADDR_STRSIZE]; + + uwb_dev_addr_print(owner, sizeof(owner), &rsv->owner->dev_addr); + if (rsv->target.type == UWB_RSV_TARGET_DEV) + devaddr = rsv->target.dev->dev_addr; + else + devaddr = rsv->target.devaddr; + uwb_dev_addr_print(target, sizeof(target), &devaddr); + + dev_dbg(dev, "rsv %s -> %s: %s\n", owner, target, uwb_rsv_state_str(rsv->state)); +} + +/* + * Get a free stream index for a reservation. + * + * If the target is a DevAddr (e.g., a WUSB cluster reservation) then + * the stream is allocated from a pool of per-RC stream indexes, + * otherwise a unique stream index for the target is selected. + */ +static int uwb_rsv_get_stream(struct uwb_rsv *rsv) +{ + struct uwb_rc *rc = rsv->rc; + unsigned long *streams_bm; + int stream; + + switch (rsv->target.type) { + case UWB_RSV_TARGET_DEV: + streams_bm = rsv->target.dev->streams; + break; + case UWB_RSV_TARGET_DEVADDR: + streams_bm = rc->uwb_dev.streams; + break; + default: + return -EINVAL; + } + + stream = find_first_zero_bit(streams_bm, UWB_NUM_STREAMS); + if (stream >= UWB_NUM_STREAMS) + return -EBUSY; + + rsv->stream = stream; + set_bit(stream, streams_bm); + + return 0; +} + +static void uwb_rsv_put_stream(struct uwb_rsv *rsv) +{ + struct uwb_rc *rc = rsv->rc; + unsigned long *streams_bm; + + switch (rsv->target.type) { + case UWB_RSV_TARGET_DEV: + streams_bm = rsv->target.dev->streams; + break; + case UWB_RSV_TARGET_DEVADDR: + streams_bm = rc->uwb_dev.streams; + break; + default: + return; + } + + clear_bit(rsv->stream, streams_bm); +} + +/* + * Generate a MAS allocation with a single row component. + */ +static void uwb_rsv_gen_alloc_row(struct uwb_mas_bm *mas, + int first_mas, int mas_per_zone, + int zs, int ze) +{ + struct uwb_mas_bm col; + int z; + + bitmap_zero(mas->bm, UWB_NUM_MAS); + bitmap_zero(col.bm, UWB_NUM_MAS); + bitmap_fill(col.bm, mas_per_zone); + bitmap_shift_left(col.bm, col.bm, first_mas + zs * UWB_MAS_PER_ZONE, UWB_NUM_MAS); + + for (z = zs; z <= ze; z++) { + bitmap_or(mas->bm, mas->bm, col.bm, UWB_NUM_MAS); + bitmap_shift_left(col.bm, col.bm, UWB_MAS_PER_ZONE, UWB_NUM_MAS); + } +} + +/* + * Allocate some MAS for this reservation based on current local + * availability, the reservation parameters (max_mas, min_mas, + * sparsity), and the WiMedia rules for MAS allocations. + * + * Returns -EBUSY is insufficient free MAS are available. + * + * FIXME: to simplify this, only safe reservations with a single row + * component in zones 1 to 15 are tried (zone 0 is skipped to avoid + * problems with the MAS reserved for the BP). + * + * [ECMA-368] section B.2. + */ +static int uwb_rsv_alloc_mas(struct uwb_rsv *rsv) +{ + static const int safe_mas_in_row[UWB_NUM_ZONES] = { + 8, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, + }; + int n, r; + struct uwb_mas_bm mas; + bool found = false; + + /* + * Search all valid safe allocations until either: too few MAS + * are available; or the smallest allocation with sufficient + * MAS is found. + * + * The top of the zones are preferred, so space for larger + * allocations is available in the bottom of the zone (e.g., a + * 15 MAS allocation should start in row 14 leaving space for + * a 120 MAS allocation at row 0). + */ + for (n = safe_mas_in_row[0]; n >= 1; n--) { + int num_mas; + + num_mas = n * (UWB_NUM_ZONES - 1); + if (num_mas < rsv->min_mas) + break; + if (found && num_mas < rsv->max_mas) + break; + + for (r = UWB_MAS_PER_ZONE-1; r >= 0; r--) { + if (safe_mas_in_row[r] < n) + continue; + uwb_rsv_gen_alloc_row(&mas, r, n, 1, UWB_NUM_ZONES); + if (uwb_drp_avail_reserve_pending(rsv->rc, &mas) == 0) { + found = true; + break; + } + } + } + + if (!found) + return -EBUSY; + + bitmap_copy(rsv->mas.bm, mas.bm, UWB_NUM_MAS); + return 0; +} + +static void uwb_rsv_stroke_timer(struct uwb_rsv *rsv) +{ + int sframes = UWB_MAX_LOST_BEACONS; + + /* + * Multicast reservations can become established within 1 + * super frame and should not be terminated if no response is + * received. + */ + if (rsv->is_multicast) { + if (rsv->state == UWB_RSV_STATE_O_INITIATED) + sframes = 1; + if (rsv->state == UWB_RSV_STATE_O_ESTABLISHED) + sframes = 0; + } + + rsv->expired = false; + if (sframes > 0) { + /* + * Add an additional 2 superframes to account for the + * time to send the SET DRP IE command. + */ + unsigned timeout_us = (sframes + 2) * UWB_SUPERFRAME_LENGTH_US; + mod_timer(&rsv->timer, jiffies + usecs_to_jiffies(timeout_us)); + } else + del_timer(&rsv->timer); +} + +/* + * Update a reservations state, and schedule an update of the + * transmitted DRP IEs. + */ +static void uwb_rsv_state_update(struct uwb_rsv *rsv, + enum uwb_rsv_state new_state) +{ + rsv->state = new_state; + rsv->ie_valid = false; + + uwb_rsv_dump(rsv); + + uwb_rsv_stroke_timer(rsv); + uwb_rsv_sched_update(rsv->rc); +} + +static void uwb_rsv_callback(struct uwb_rsv *rsv) +{ + if (rsv->callback) + rsv->callback(rsv); +} + +void uwb_rsv_set_state(struct uwb_rsv *rsv, enum uwb_rsv_state new_state) +{ + if (rsv->state == new_state) { + switch (rsv->state) { + case UWB_RSV_STATE_O_ESTABLISHED: + case UWB_RSV_STATE_T_ACCEPTED: + case UWB_RSV_STATE_NONE: + uwb_rsv_stroke_timer(rsv); + break; + default: + /* Expecting a state transition so leave timer + as-is. */ + break; + } + return; + } + + switch (new_state) { + case UWB_RSV_STATE_NONE: + uwb_drp_avail_release(rsv->rc, &rsv->mas); + uwb_rsv_put_stream(rsv); + uwb_rsv_state_update(rsv, UWB_RSV_STATE_NONE); + uwb_rsv_callback(rsv); + break; + case UWB_RSV_STATE_O_INITIATED: + uwb_rsv_state_update(rsv, UWB_RSV_STATE_O_INITIATED); + break; + case UWB_RSV_STATE_O_PENDING: + uwb_rsv_state_update(rsv, UWB_RSV_STATE_O_PENDING); + break; + case UWB_RSV_STATE_O_ESTABLISHED: + uwb_drp_avail_reserve(rsv->rc, &rsv->mas); + uwb_rsv_state_update(rsv, UWB_RSV_STATE_O_ESTABLISHED); + uwb_rsv_callback(rsv); + break; + case UWB_RSV_STATE_T_ACCEPTED: + uwb_drp_avail_reserve(rsv->rc, &rsv->mas); + uwb_rsv_state_update(rsv, UWB_RSV_STATE_T_ACCEPTED); + uwb_rsv_callback(rsv); + break; + case UWB_RSV_STATE_T_DENIED: + uwb_rsv_state_update(rsv, UWB_RSV_STATE_T_DENIED); + break; + default: + dev_err(&rsv->rc->uwb_dev.dev, "unhandled state: %s (%d)\n", + uwb_rsv_state_str(new_state), new_state); + } +} + +static struct uwb_rsv *uwb_rsv_alloc(struct uwb_rc *rc) +{ + struct uwb_rsv *rsv; + + rsv = kzalloc(sizeof(struct uwb_rsv), GFP_KERNEL); + if (!rsv) + return NULL; + + INIT_LIST_HEAD(&rsv->rc_node); + INIT_LIST_HEAD(&rsv->pal_node); + init_timer(&rsv->timer); + rsv->timer.function = uwb_rsv_timer; + rsv->timer.data = (unsigned long)rsv; + + rsv->rc = rc; + + return rsv; +} + +static void uwb_rsv_free(struct uwb_rsv *rsv) +{ + uwb_dev_put(rsv->owner); + if (rsv->target.type == UWB_RSV_TARGET_DEV) + uwb_dev_put(rsv->target.dev); + kfree(rsv); +} + +/** + * uwb_rsv_create - allocate and initialize a UWB reservation structure + * @rc: the radio controller + * @cb: callback to use when the reservation completes or terminates + * @pal_priv: data private to the PAL to be passed in the callback + * + * The callback is called when the state of the reservation changes from: + * + * - pending to accepted + * - pending to denined + * - accepted to terminated + * - pending to terminated + */ +struct uwb_rsv *uwb_rsv_create(struct uwb_rc *rc, uwb_rsv_cb_f cb, void *pal_priv) +{ + struct uwb_rsv *rsv; + + rsv = uwb_rsv_alloc(rc); + if (!rsv) + return NULL; + + rsv->callback = cb; + rsv->pal_priv = pal_priv; + + return rsv; +} +EXPORT_SYMBOL_GPL(uwb_rsv_create); + +void uwb_rsv_remove(struct uwb_rsv *rsv) +{ + if (rsv->state != UWB_RSV_STATE_NONE) + uwb_rsv_set_state(rsv, UWB_RSV_STATE_NONE); + del_timer_sync(&rsv->timer); + list_del(&rsv->rc_node); + uwb_rsv_free(rsv); +} + +/** + * uwb_rsv_destroy - free a UWB reservation structure + * @rsv: the reservation to free + * + * The reservation will be terminated if it is pending or established. + */ +void uwb_rsv_destroy(struct uwb_rsv *rsv) +{ + struct uwb_rc *rc = rsv->rc; + + mutex_lock(&rc->rsvs_mutex); + uwb_rsv_remove(rsv); + mutex_unlock(&rc->rsvs_mutex); +} +EXPORT_SYMBOL_GPL(uwb_rsv_destroy); + +/** + * usb_rsv_establish - start a reservation establishment + * @rsv: the reservation + * + * The PAL should fill in @rsv's owner, target, type, max_mas, + * min_mas, sparsity and is_multicast fields. If the target is a + * uwb_dev it must be referenced. + * + * The reservation's callback will be called when the reservation is + * accepted, denied or times out. + */ +int uwb_rsv_establish(struct uwb_rsv *rsv) +{ + struct uwb_rc *rc = rsv->rc; + int ret; + + mutex_lock(&rc->rsvs_mutex); + + ret = uwb_rsv_get_stream(rsv); + if (ret) + goto out; + + ret = uwb_rsv_alloc_mas(rsv); + if (ret) { + uwb_rsv_put_stream(rsv); + goto out; + } + + list_add_tail(&rsv->rc_node, &rc->reservations); + rsv->owner = &rc->uwb_dev; + uwb_dev_get(rsv->owner); + uwb_rsv_set_state(rsv, UWB_RSV_STATE_O_INITIATED); +out: + mutex_unlock(&rc->rsvs_mutex); + return ret; +} +EXPORT_SYMBOL_GPL(uwb_rsv_establish); + +/** + * uwb_rsv_modify - modify an already established reservation + * @rsv: the reservation to modify + * @max_mas: new maximum MAS to reserve + * @min_mas: new minimum MAS to reserve + * @sparsity: new sparsity to use + * + * FIXME: implement this once there are PALs that use it. + */ +int uwb_rsv_modify(struct uwb_rsv *rsv, int max_mas, int min_mas, int sparsity) +{ + return -ENOSYS; +} +EXPORT_SYMBOL_GPL(uwb_rsv_modify); + +/** + * uwb_rsv_terminate - terminate an established reservation + * @rsv: the reservation to terminate + * + * A reservation is terminated by removing the DRP IE from the beacon, + * the other end will consider the reservation to be terminated when + * it does not see the DRP IE for at least mMaxLostBeacons. + * + * If applicable, the reference to the target uwb_dev will be released. + */ +void uwb_rsv_terminate(struct uwb_rsv *rsv) +{ + struct uwb_rc *rc = rsv->rc; + + mutex_lock(&rc->rsvs_mutex); + + uwb_rsv_set_state(rsv, UWB_RSV_STATE_NONE); + + mutex_unlock(&rc->rsvs_mutex); +} +EXPORT_SYMBOL_GPL(uwb_rsv_terminate); + +/** + * uwb_rsv_accept - accept a new reservation from a peer + * @rsv: the reservation + * @cb: call back for reservation changes + * @pal_priv: data to be passed in the above call back + * + * Reservation requests from peers are denied unless a PAL accepts it + * by calling this function. + */ +void uwb_rsv_accept(struct uwb_rsv *rsv, uwb_rsv_cb_f cb, void *pal_priv) +{ + rsv->callback = cb; + rsv->pal_priv = pal_priv; + rsv->state = UWB_RSV_STATE_T_ACCEPTED; +} +EXPORT_SYMBOL_GPL(uwb_rsv_accept); + +/* + * Is a received DRP IE for this reservation? + */ +static bool uwb_rsv_match(struct uwb_rsv *rsv, struct uwb_dev *src, + struct uwb_ie_drp *drp_ie) +{ + struct uwb_dev_addr *rsv_src; + + if (rsv->stream != drp_ie->stream_index) + return false; + + switch (rsv->target.type) { + case UWB_RSV_TARGET_DEVADDR: + return rsv->stream == drp_ie->stream_index; + case UWB_RSV_TARGET_DEV: + if (drp_ie->owner) + rsv_src = &rsv->owner->dev_addr; + else + rsv_src = &rsv->target.dev->dev_addr; + return uwb_dev_addr_cmp(&src->dev_addr, rsv_src) == 0; + } + return false; +} + +static struct uwb_rsv *uwb_rsv_new_target(struct uwb_rc *rc, + struct uwb_dev *src, + struct uwb_ie_drp *drp_ie) +{ + struct uwb_rsv *rsv; + struct uwb_pal *pal; + enum uwb_rsv_state state; + + rsv = uwb_rsv_alloc(rc); + if (!rsv) + return NULL; + + rsv->rc = rc; + rsv->owner = src; + uwb_dev_get(rsv->owner); + rsv->target.type = UWB_RSV_TARGET_DEV; + rsv->target.dev = &rc->uwb_dev; + rsv->type = drp_ie->type; + rsv->stream = drp_ie->stream_index; + set_bit(rsv->stream, rsv->owner->streams); + uwb_drp_ie_to_bm(&rsv->mas, drp_ie); + + /* + * See if any PALs are interested in this reservation. If not, + * deny the request. + */ + rsv->state = UWB_RSV_STATE_T_DENIED; + spin_lock(&rc->pal_lock); + list_for_each_entry(pal, &rc->pals, node) { + if (pal->new_rsv) + pal->new_rsv(rsv); + if (rsv->state == UWB_RSV_STATE_T_ACCEPTED) + break; + } + spin_unlock(&rc->pal_lock); + + list_add_tail(&rsv->rc_node, &rc->reservations); + state = rsv->state; + rsv->state = UWB_RSV_STATE_NONE; + uwb_rsv_set_state(rsv, state); + + return rsv; +} + +/** + * uwb_rsv_find - find a reservation for a received DRP IE. + * @rc: the radio controller + * @src: source of the DRP IE + * @drp_ie: the DRP IE + * + * If the reservation cannot be found and the DRP IE is from a peer + * attempting to establish a new reservation, create a new reservation + * and add it to the list. + */ +struct uwb_rsv *uwb_rsv_find(struct uwb_rc *rc, struct uwb_dev *src, + struct uwb_ie_drp *drp_ie) +{ + struct uwb_rsv *rsv; + + list_for_each_entry(rsv, &rc->reservations, rc_node) { + if (uwb_rsv_match(rsv, src, drp_ie)) + return rsv; + } + + if (drp_ie->owner) + return uwb_rsv_new_target(rc, src, drp_ie); + + return NULL; +} + +/* + * Go through all the reservations and check for timeouts and (if + * necessary) update their DRP IEs. + * + * FIXME: look at building the SET_DRP_IE command here rather than + * having to rescan the list in uwb_rc_send_all_drp_ie(). + */ +static bool uwb_rsv_update_all(struct uwb_rc *rc) +{ + struct uwb_rsv *rsv, *t; + bool ie_updated = false; + + list_for_each_entry_safe(rsv, t, &rc->reservations, rc_node) { + if (rsv->expired) + uwb_drp_handle_timeout(rsv); + if (!rsv->ie_valid) { + uwb_drp_ie_update(rsv); + ie_updated = true; + } + } + + return ie_updated; +} + +void uwb_rsv_sched_update(struct uwb_rc *rc) +{ + queue_work(rc->rsv_workq, &rc->rsv_update_work); +} + +/* + * Update DRP IEs and, if necessary, the DRP Availability IE and send + * the updated IEs to the radio controller. + */ +static void uwb_rsv_update_work(struct work_struct *work) +{ + struct uwb_rc *rc = container_of(work, struct uwb_rc, rsv_update_work); + bool ie_updated; + + mutex_lock(&rc->rsvs_mutex); + + ie_updated = uwb_rsv_update_all(rc); + + if (!rc->drp_avail.ie_valid) { + uwb_drp_avail_ie_update(rc); + ie_updated = true; + } + + if (ie_updated) + uwb_rc_send_all_drp_ie(rc); + + mutex_unlock(&rc->rsvs_mutex); +} + +static void uwb_rsv_timer(unsigned long arg) +{ + struct uwb_rsv *rsv = (struct uwb_rsv *)arg; + + rsv->expired = true; + uwb_rsv_sched_update(rsv->rc); +} + +void uwb_rsv_init(struct uwb_rc *rc) +{ + INIT_LIST_HEAD(&rc->reservations); + mutex_init(&rc->rsvs_mutex); + INIT_WORK(&rc->rsv_update_work, uwb_rsv_update_work); + + bitmap_complement(rc->uwb_dev.streams, rc->uwb_dev.streams, UWB_NUM_STREAMS); +} + +int uwb_rsv_setup(struct uwb_rc *rc) +{ + char name[16]; + + snprintf(name, sizeof(name), "%s_rsvd", dev_name(&rc->uwb_dev.dev)); + rc->rsv_workq = create_singlethread_workqueue(name); + if (rc->rsv_workq == NULL) + return -ENOMEM; + + return 0; +} + +void uwb_rsv_cleanup(struct uwb_rc *rc) +{ + struct uwb_rsv *rsv, *t; + + mutex_lock(&rc->rsvs_mutex); + list_for_each_entry_safe(rsv, t, &rc->reservations, rc_node) { + uwb_rsv_remove(rsv); + } + mutex_unlock(&rc->rsvs_mutex); + + cancel_work_sync(&rc->rsv_update_work); + destroy_workqueue(rc->rsv_workq); +} diff --git a/drivers/uwb/scan.c b/drivers/uwb/scan.c new file mode 100644 index 000000000000..e8e62359c6ce --- /dev/null +++ b/drivers/uwb/scan.c @@ -0,0 +1,159 @@ +/* + * Ultra Wide Band + * Scanning management + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * + * FIXME: docs + * FIXME: there are issues here on how BEACON and SCAN on USB RCI deal + * with each other. Currently seems that START_BEACON while + * SCAN_ONLY will cancel the scan, so we need to update the + * state here. Clarification request sent by email on + * 10/05/2005. + * 10/28/2005 No clear answer heard--maybe we'll hack the API + * so that when we start beaconing, if the HC is + * scanning in a mode not compatible with beaconing + * we just fail. + */ + +#include <linux/device.h> +#include <linux/err.h> +#include "uwb-internal.h" + + +/** + * Start/stop scanning in a radio controller + * + * @rc: UWB Radio Controlller + * @channel: Channel to scan; encodings in WUSB1.0[Table 5.12] + * @type: Type of scanning to do. + * @bpst_offset: value at which to start scanning (if type == + * UWB_SCAN_ONLY_STARTTIME) + * @returns: 0 if ok, < 0 errno code on error + * + * We put the command on kmalloc'ed memory as some arches cannot do + * USB from the stack. The reply event is copied from an stage buffer, + * so it can be in the stack. See WUSB1.0[8.6.2.4] for more details. + */ +int uwb_rc_scan(struct uwb_rc *rc, + unsigned channel, enum uwb_scan_type type, + unsigned bpst_offset) +{ + int result; + struct uwb_rc_cmd_scan *cmd; + struct uwb_rc_evt_confirm reply; + + result = -ENOMEM; + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + goto error_kzalloc; + mutex_lock(&rc->uwb_dev.mutex); + cmd->rccb.bCommandType = UWB_RC_CET_GENERAL; + cmd->rccb.wCommand = cpu_to_le16(UWB_RC_CMD_SCAN); + cmd->bChannelNumber = channel; + cmd->bScanState = type; + cmd->wStartTime = cpu_to_le16(bpst_offset); + reply.rceb.bEventType = UWB_RC_CET_GENERAL; + reply.rceb.wEvent = UWB_RC_CMD_SCAN; + result = uwb_rc_cmd(rc, "SCAN", &cmd->rccb, sizeof(*cmd), + &reply.rceb, sizeof(reply)); + if (result < 0) + goto error_cmd; + if (reply.bResultCode != UWB_RC_RES_SUCCESS) { + dev_err(&rc->uwb_dev.dev, + "SCAN: command execution failed: %s (%d)\n", + uwb_rc_strerror(reply.bResultCode), reply.bResultCode); + result = -EIO; + goto error_cmd; + } + rc->scanning = channel; + rc->scan_type = type; +error_cmd: + mutex_unlock(&rc->uwb_dev.mutex); + kfree(cmd); +error_kzalloc: + return result; +} + +static const char *scan_type_name[] = { + "scanning-only", + "scanning-outside beacon period", + "scanning-while inactive", + "scanning-disabled", + "scanning-only starttime" +}; + +/* + * Print scanning state + */ +static ssize_t uwb_rc_scan_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_rc *rc = uwb_dev->rc; + enum uwb_scan_type type; + ssize_t result; + unsigned cnt; + + mutex_lock(&rc->uwb_dev.mutex); + type = rc->scan_type; + BUG_ON(type > UWB_SCAN_ONLY_STARTTIME || type < UWB_SCAN_ONLY); + result = sprintf(buf, + "state: %s\n" + "channel: %d\n" + "\n" + "# CHANNEL TYPE [BPST-OFFSET]\n" + "# start/stop scanning on CHANNEL\n" + "#\n" + "# Types:\n", + scan_type_name[type], rc->scanning); + mutex_unlock(&rc->uwb_dev.mutex); + for (cnt = 0; cnt <= UWB_SCAN_ONLY_STARTTIME; cnt++) + result += sprintf(buf + result, "# %d - %s\n", + cnt, scan_type_name[cnt]); + return result; +} + +/* + * + */ +static ssize_t uwb_rc_scan_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + struct uwb_rc *rc = uwb_dev->rc; + ssize_t result; + unsigned channel; + unsigned type; + unsigned bpst_offset = 0; + + result = sscanf(buf, "%u %u %u\n", &channel, &type, &bpst_offset); + if (result < 2 || type >= UWB_SCAN_TOP) { + result = -EINVAL; + goto error; + } + result = uwb_rc_scan(rc, channel, type, bpst_offset); +error: + return result < 0 ? result : size; +} + +/** Radio Control sysfs interface (declaration) */ +DEVICE_ATTR(scan, S_IRUGO | S_IWUSR, uwb_rc_scan_show, uwb_rc_scan_store); diff --git a/drivers/uwb/umc-bus.c b/drivers/uwb/umc-bus.c new file mode 100644 index 000000000000..b165c83fad0f --- /dev/null +++ b/drivers/uwb/umc-bus.c @@ -0,0 +1,185 @@ +/* + * Bus for UWB Multi-interface Controller capabilities. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This file is released under the GNU GPL v2. + */ +#include <linux/kernel.h> +#include <linux/sysfs.h> +#include <linux/workqueue.h> +#include <linux/uwb/umc.h> +#include <linux/pci.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + + +/** + * umc_match_pci_id - match a UMC driver to a UMC device's parent PCI device. + * @umc_drv: umc driver with match_data pointing to a zero-terminated + * table of pci_device_id's. + * @umc: umc device whose parent is to be matched. + */ +int umc_match_pci_id(struct umc_driver *umc_drv, struct umc_dev *umc) +{ + const struct pci_device_id *id_table = umc_drv->match_data; + struct pci_dev *pci; + + if (umc->dev.parent->bus != &pci_bus_type) + return 0; + + pci = to_pci_dev(umc->dev.parent); + return pci_match_id(id_table, pci) != NULL; +} +EXPORT_SYMBOL_GPL(umc_match_pci_id); + +static int umc_bus_rescan_helper(struct device *dev, void *data) +{ + int ret = 0; + + if (!dev->driver) + ret = device_attach(dev); + + return ret < 0 ? ret : 0; +} + +static void umc_bus_rescan(void) +{ + int err; + + /* + * We can't use bus_rescan_devices() here as it deadlocks when + * it tries to retake the dev->parent semaphore. + */ + err = bus_for_each_dev(&umc_bus_type, NULL, NULL, umc_bus_rescan_helper); + if (err < 0) + printk(KERN_WARNING "%s: rescan of bus failed: %d\n", + KBUILD_MODNAME, err); +} + +static int umc_bus_match(struct device *dev, struct device_driver *drv) +{ + struct umc_dev *umc = to_umc_dev(dev); + struct umc_driver *umc_driver = to_umc_driver(drv); + + if (umc->cap_id == umc_driver->cap_id) { + if (umc_driver->match) + return umc_driver->match(umc_driver, umc); + else + return 1; + } + return 0; +} + +static int umc_device_probe(struct device *dev) +{ + struct umc_dev *umc; + struct umc_driver *umc_driver; + int err; + + umc_driver = to_umc_driver(dev->driver); + umc = to_umc_dev(dev); + + get_device(dev); + err = umc_driver->probe(umc); + if (err) + put_device(dev); + else + umc_bus_rescan(); + + return err; +} + +static int umc_device_remove(struct device *dev) +{ + struct umc_dev *umc; + struct umc_driver *umc_driver; + + umc_driver = to_umc_driver(dev->driver); + umc = to_umc_dev(dev); + + umc_driver->remove(umc); + put_device(dev); + return 0; +} + +static int umc_device_suspend(struct device *dev, pm_message_t state) +{ + struct umc_dev *umc; + struct umc_driver *umc_driver; + int err = 0; + + umc = to_umc_dev(dev); + + if (dev->driver) { + umc_driver = to_umc_driver(dev->driver); + if (umc_driver->suspend) + err = umc_driver->suspend(umc, state); + } + return err; +} + +static int umc_device_resume(struct device *dev) +{ + struct umc_dev *umc; + struct umc_driver *umc_driver; + int err = 0; + + umc = to_umc_dev(dev); + + if (dev->driver) { + umc_driver = to_umc_driver(dev->driver); + if (umc_driver->resume) + err = umc_driver->resume(umc); + } + return err; +} + +static ssize_t capability_id_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct umc_dev *umc = to_umc_dev(dev); + + return sprintf(buf, "0x%02x\n", umc->cap_id); +} + +static ssize_t version_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct umc_dev *umc = to_umc_dev(dev); + + return sprintf(buf, "0x%04x\n", umc->version); +} + +static struct device_attribute umc_dev_attrs[] = { + __ATTR_RO(capability_id), + __ATTR_RO(version), + __ATTR_NULL, +}; + +struct bus_type umc_bus_type = { + .name = "umc", + .match = umc_bus_match, + .probe = umc_device_probe, + .remove = umc_device_remove, + .suspend = umc_device_suspend, + .resume = umc_device_resume, + .dev_attrs = umc_dev_attrs, +}; +EXPORT_SYMBOL_GPL(umc_bus_type); + +static int __init umc_bus_init(void) +{ + return bus_register(&umc_bus_type); +} +module_init(umc_bus_init); + +static void __exit umc_bus_exit(void) +{ + d_fnstart(4, NULL, "()\n"); + bus_unregister(&umc_bus_type); + d_fnend(4, NULL, "() = void\n"); +} +module_exit(umc_bus_exit); + +MODULE_DESCRIPTION("UWB Multi-interface Controller capability bus"); +MODULE_AUTHOR("Cambridge Silicon Radio Ltd."); +MODULE_LICENSE("GPL"); diff --git a/drivers/uwb/umc-dev.c b/drivers/uwb/umc-dev.c new file mode 100644 index 000000000000..53207e14cd8f --- /dev/null +++ b/drivers/uwb/umc-dev.c @@ -0,0 +1,103 @@ +/* + * UWB Multi-interface Controller device management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This file is released under the GNU GPL v2. + */ +#include <linux/kernel.h> +#include <linux/uwb/umc.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +static void umc_device_release(struct device *dev) +{ + struct umc_dev *umc = to_umc_dev(dev); + + kfree(umc); +} + +/** + * umc_device_create - allocate a child UMC device + * @parent: parent of the new UMC device. + * @n: index of the new device. + * + * The new UMC device will have a bus ID of the parent with '-n' + * appended. + */ +struct umc_dev *umc_device_create(struct device *parent, int n) +{ + struct umc_dev *umc; + + umc = kzalloc(sizeof(struct umc_dev), GFP_KERNEL); + if (umc) { + dev_set_name(&umc->dev, "%s-%d", dev_name(parent), n); + umc->dev.parent = parent; + umc->dev.bus = &umc_bus_type; + umc->dev.release = umc_device_release; + + umc->dev.dma_mask = parent->dma_mask; + } + return umc; +} +EXPORT_SYMBOL_GPL(umc_device_create); + +/** + * umc_device_register - register a UMC device + * @umc: pointer to the UMC device + * + * The memory resource for the UMC device is acquired and the device + * registered with the system. + */ +int umc_device_register(struct umc_dev *umc) +{ + int err; + + d_fnstart(3, &umc->dev, "(umc_dev %p)\n", umc); + + err = request_resource(umc->resource.parent, &umc->resource); + if (err < 0) { + dev_err(&umc->dev, "can't allocate resource range " + "%016Lx to %016Lx: %d\n", + (unsigned long long)umc->resource.start, + (unsigned long long)umc->resource.end, + err); + goto error_request_resource; + } + + err = device_register(&umc->dev); + if (err < 0) + goto error_device_register; + d_fnend(3, &umc->dev, "(umc_dev %p) = 0\n", umc); + return 0; + +error_device_register: + release_resource(&umc->resource); +error_request_resource: + d_fnend(3, &umc->dev, "(umc_dev %p) = %d\n", umc, err); + return err; +} +EXPORT_SYMBOL_GPL(umc_device_register); + +/** + * umc_device_unregister - unregister a UMC device + * @umc: pointer to the UMC device + * + * First we unregister the device, make sure the driver can do it's + * resource release thing and then we try to release any left over + * resources. We take a ref to the device, to make sure it doesn't + * dissapear under our feet. + */ +void umc_device_unregister(struct umc_dev *umc) +{ + struct device *dev; + if (!umc) + return; + dev = get_device(&umc->dev); + d_fnstart(3, dev, "(umc_dev %p)\n", umc); + device_unregister(&umc->dev); + release_resource(&umc->resource); + d_fnend(3, dev, "(umc_dev %p) = void\n", umc); + put_device(dev); +} +EXPORT_SYMBOL_GPL(umc_device_unregister); diff --git a/drivers/uwb/umc-drv.c b/drivers/uwb/umc-drv.c new file mode 100644 index 000000000000..367b5eb85d60 --- /dev/null +++ b/drivers/uwb/umc-drv.c @@ -0,0 +1,31 @@ +/* + * UWB Multi-interface Controller driver management. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This file is released under the GNU GPL v2. + */ +#include <linux/kernel.h> +#include <linux/uwb/umc.h> + +int __umc_driver_register(struct umc_driver *umc_drv, struct module *module, + const char *mod_name) +{ + umc_drv->driver.name = umc_drv->name; + umc_drv->driver.owner = module; + umc_drv->driver.mod_name = mod_name; + umc_drv->driver.bus = &umc_bus_type; + + return driver_register(&umc_drv->driver); +} +EXPORT_SYMBOL_GPL(__umc_driver_register); + +/** + * umc_driver_register - unregister a UMC capabiltity driver. + * @umc_drv: pointer to the driver. + */ +void umc_driver_unregister(struct umc_driver *umc_drv) +{ + driver_unregister(&umc_drv->driver); +} +EXPORT_SYMBOL_GPL(umc_driver_unregister); diff --git a/drivers/uwb/uwb-debug.c b/drivers/uwb/uwb-debug.c new file mode 100644 index 000000000000..5828cbc4a292 --- /dev/null +++ b/drivers/uwb/uwb-debug.c @@ -0,0 +1,367 @@ +/* + * Ultra Wide Band + * Debug support + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: doc + */ + +#include <linux/spinlock.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/notifier.h> +#include <linux/device.h> +#include <linux/debugfs.h> +#include <linux/uaccess.h> +#include <linux/seq_file.h> + +#include <linux/uwb/debug-cmd.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +#include "uwb-internal.h" + +void dump_bytes(struct device *dev, const void *_buf, size_t rsize) +{ + const char *buf = _buf; + char line[32]; + size_t offset = 0; + int cnt, cnt2; + for (cnt = 0; cnt < rsize; cnt += 8) { + size_t rtop = rsize - cnt < 8? rsize - cnt : 8; + for (offset = cnt2 = 0; cnt2 < rtop; cnt2++) { + offset += scnprintf(line + offset, sizeof(line) - offset, + "%02x ", buf[cnt + cnt2] & 0xff); + } + if (dev) + dev_info(dev, "%s\n", line); + else + printk(KERN_INFO "%s\n", line); + } +} +EXPORT_SYMBOL_GPL(dump_bytes); + +/* + * Debug interface + * + * Per radio controller debugfs files (in uwb/uwbN/): + * + * command: Flexible command interface (see <linux/uwb/debug-cmd.h>). + * + * reservations: information on reservations. + * + * accept: Set to true (Y or 1) to accept reservation requests from + * peers. + * + * drp_avail: DRP availability information. + */ + +struct uwb_dbg { + struct uwb_pal pal; + + u32 accept; + struct list_head rsvs; + + struct dentry *root_d; + struct dentry *command_f; + struct dentry *reservations_f; + struct dentry *accept_f; + struct dentry *drp_avail_f; +}; + +static struct dentry *root_dir; + +static void uwb_dbg_rsv_cb(struct uwb_rsv *rsv) +{ + struct uwb_rc *rc = rsv->rc; + struct device *dev = &rc->uwb_dev.dev; + struct uwb_dev_addr devaddr; + char owner[UWB_ADDR_STRSIZE], target[UWB_ADDR_STRSIZE]; + + uwb_dev_addr_print(owner, sizeof(owner), &rsv->owner->dev_addr); + if (rsv->target.type == UWB_RSV_TARGET_DEV) + devaddr = rsv->target.dev->dev_addr; + else + devaddr = rsv->target.devaddr; + uwb_dev_addr_print(target, sizeof(target), &devaddr); + + dev_dbg(dev, "debug: rsv %s -> %s: %s\n", + owner, target, uwb_rsv_state_str(rsv->state)); +} + +static int cmd_rsv_establish(struct uwb_rc *rc, + struct uwb_dbg_cmd_rsv_establish *cmd) +{ + struct uwb_mac_addr macaddr; + struct uwb_rsv *rsv; + struct uwb_dev *target; + int ret; + + memcpy(&macaddr, cmd->target, sizeof(macaddr)); + target = uwb_dev_get_by_macaddr(rc, &macaddr); + if (target == NULL) + return -ENODEV; + + rsv = uwb_rsv_create(rc, uwb_dbg_rsv_cb, NULL); + if (rsv == NULL) { + uwb_dev_put(target); + return -ENOMEM; + } + + rsv->owner = &rc->uwb_dev; + rsv->target.type = UWB_RSV_TARGET_DEV; + rsv->target.dev = target; + rsv->type = cmd->type; + rsv->max_mas = cmd->max_mas; + rsv->min_mas = cmd->min_mas; + rsv->sparsity = cmd->sparsity; + + ret = uwb_rsv_establish(rsv); + if (ret) + uwb_rsv_destroy(rsv); + else + list_add_tail(&rsv->pal_node, &rc->dbg->rsvs); + + return ret; +} + +static int cmd_rsv_terminate(struct uwb_rc *rc, + struct uwb_dbg_cmd_rsv_terminate *cmd) +{ + struct uwb_rsv *rsv, *found = NULL; + int i = 0; + + list_for_each_entry(rsv, &rc->dbg->rsvs, pal_node) { + if (i == cmd->index) { + found = rsv; + break; + } + } + if (!found) + return -EINVAL; + + list_del(&found->pal_node); + uwb_rsv_terminate(found); + + return 0; +} + +static int command_open(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + + return 0; +} + +static ssize_t command_write(struct file *file, const char __user *buf, + size_t len, loff_t *off) +{ + struct uwb_rc *rc = file->private_data; + struct uwb_dbg_cmd cmd; + int ret; + + if (len != sizeof(struct uwb_dbg_cmd)) + return -EINVAL; + + if (copy_from_user(&cmd, buf, len) != 0) + return -EFAULT; + + switch (cmd.type) { + case UWB_DBG_CMD_RSV_ESTABLISH: + ret = cmd_rsv_establish(rc, &cmd.rsv_establish); + break; + case UWB_DBG_CMD_RSV_TERMINATE: + ret = cmd_rsv_terminate(rc, &cmd.rsv_terminate); + break; + default: + return -EINVAL; + } + + return ret < 0 ? ret : len; +} + +static struct file_operations command_fops = { + .open = command_open, + .write = command_write, + .read = NULL, + .llseek = no_llseek, + .owner = THIS_MODULE, +}; + +static int reservations_print(struct seq_file *s, void *p) +{ + struct uwb_rc *rc = s->private; + struct uwb_rsv *rsv; + + mutex_lock(&rc->rsvs_mutex); + + list_for_each_entry(rsv, &rc->reservations, rc_node) { + struct uwb_dev_addr devaddr; + char owner[UWB_ADDR_STRSIZE], target[UWB_ADDR_STRSIZE]; + bool is_owner; + char buf[72]; + + uwb_dev_addr_print(owner, sizeof(owner), &rsv->owner->dev_addr); + if (rsv->target.type == UWB_RSV_TARGET_DEV) { + devaddr = rsv->target.dev->dev_addr; + is_owner = &rc->uwb_dev == rsv->owner; + } else { + devaddr = rsv->target.devaddr; + is_owner = true; + } + uwb_dev_addr_print(target, sizeof(target), &devaddr); + + seq_printf(s, "%c %s -> %s: %s\n", + is_owner ? 'O' : 'T', + owner, target, uwb_rsv_state_str(rsv->state)); + seq_printf(s, " stream: %d type: %s\n", + rsv->stream, uwb_rsv_type_str(rsv->type)); + bitmap_scnprintf(buf, sizeof(buf), rsv->mas.bm, UWB_NUM_MAS); + seq_printf(s, " %s\n", buf); + } + + mutex_unlock(&rc->rsvs_mutex); + + return 0; +} + +static int reservations_open(struct inode *inode, struct file *file) +{ + return single_open(file, reservations_print, inode->i_private); +} + +static struct file_operations reservations_fops = { + .open = reservations_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static int drp_avail_print(struct seq_file *s, void *p) +{ + struct uwb_rc *rc = s->private; + char buf[72]; + + bitmap_scnprintf(buf, sizeof(buf), rc->drp_avail.global, UWB_NUM_MAS); + seq_printf(s, "global: %s\n", buf); + bitmap_scnprintf(buf, sizeof(buf), rc->drp_avail.local, UWB_NUM_MAS); + seq_printf(s, "local: %s\n", buf); + bitmap_scnprintf(buf, sizeof(buf), rc->drp_avail.pending, UWB_NUM_MAS); + seq_printf(s, "pending: %s\n", buf); + + return 0; +} + +static int drp_avail_open(struct inode *inode, struct file *file) +{ + return single_open(file, drp_avail_print, inode->i_private); +} + +static struct file_operations drp_avail_fops = { + .open = drp_avail_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + +static void uwb_dbg_new_rsv(struct uwb_rsv *rsv) +{ + struct uwb_rc *rc = rsv->rc; + + if (rc->dbg->accept) + uwb_rsv_accept(rsv, uwb_dbg_rsv_cb, NULL); +} + +/** + * uwb_dbg_add_rc - add a debug interface for a radio controller + * @rc: the radio controller + */ +void uwb_dbg_add_rc(struct uwb_rc *rc) +{ + rc->dbg = kzalloc(sizeof(struct uwb_dbg), GFP_KERNEL); + if (rc->dbg == NULL) + return; + + INIT_LIST_HEAD(&rc->dbg->rsvs); + + uwb_pal_init(&rc->dbg->pal); + rc->dbg->pal.new_rsv = uwb_dbg_new_rsv; + uwb_pal_register(rc, &rc->dbg->pal); + if (root_dir) { + rc->dbg->root_d = debugfs_create_dir(dev_name(&rc->uwb_dev.dev), + root_dir); + rc->dbg->command_f = debugfs_create_file("command", 0200, + rc->dbg->root_d, rc, + &command_fops); + rc->dbg->reservations_f = debugfs_create_file("reservations", 0444, + rc->dbg->root_d, rc, + &reservations_fops); + rc->dbg->accept_f = debugfs_create_bool("accept", 0644, + rc->dbg->root_d, + &rc->dbg->accept); + rc->dbg->drp_avail_f = debugfs_create_file("drp_avail", 0444, + rc->dbg->root_d, rc, + &drp_avail_fops); + } +} + +/** + * uwb_dbg_add_rc - remove a radio controller's debug interface + * @rc: the radio controller + */ +void uwb_dbg_del_rc(struct uwb_rc *rc) +{ + struct uwb_rsv *rsv, *t; + + if (rc->dbg == NULL) + return; + + list_for_each_entry_safe(rsv, t, &rc->dbg->rsvs, pal_node) { + uwb_rsv_destroy(rsv); + } + + uwb_pal_unregister(rc, &rc->dbg->pal); + + if (root_dir) { + debugfs_remove(rc->dbg->drp_avail_f); + debugfs_remove(rc->dbg->accept_f); + debugfs_remove(rc->dbg->reservations_f); + debugfs_remove(rc->dbg->command_f); + debugfs_remove(rc->dbg->root_d); + } +} + +/** + * uwb_dbg_exit - initialize the debug interface sub-module + */ +void uwb_dbg_init(void) +{ + root_dir = debugfs_create_dir("uwb", NULL); +} + +/** + * uwb_dbg_exit - clean-up the debug interface sub-module + */ +void uwb_dbg_exit(void) +{ + debugfs_remove(root_dir); +} diff --git a/drivers/uwb/uwb-internal.h b/drivers/uwb/uwb-internal.h new file mode 100644 index 000000000000..e0dc4aac1151 --- /dev/null +++ b/drivers/uwb/uwb-internal.h @@ -0,0 +1,283 @@ +/* + * Ultra Wide Band + * UWB internal API + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * This contains most of the internal API for UWB. This is stuff used + * across the stack that of course, is of no interest to the rest. + * + * Some parts might end up going public (like uwb_rc_*())... + */ + +#ifndef __UWB_INTERNAL_H__ +#define __UWB_INTERNAL_H__ + +#include <linux/version.h> +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/uwb.h> +#include <linux/mutex.h> + +struct uwb_beca_e; + +/* General device API */ +extern void uwb_dev_init(struct uwb_dev *uwb_dev); +extern int __uwb_dev_offair(struct uwb_dev *, struct uwb_rc *); +extern int uwb_dev_add(struct uwb_dev *uwb_dev, struct device *parent_dev, + struct uwb_rc *parent_rc); +extern void uwb_dev_rm(struct uwb_dev *uwb_dev); +extern void uwbd_dev_onair(struct uwb_rc *, struct uwb_beca_e *); +extern void uwbd_dev_offair(struct uwb_beca_e *); +void uwb_notify(struct uwb_rc *rc, struct uwb_dev *uwb_dev, enum uwb_notifs event); + +/* General UWB Radio Controller Internal API */ +extern struct uwb_rc *__uwb_rc_try_get(struct uwb_rc *); +static inline struct uwb_rc *__uwb_rc_get(struct uwb_rc *rc) +{ + uwb_dev_get(&rc->uwb_dev); + return rc; +} + +static inline void __uwb_rc_put(struct uwb_rc *rc) +{ + uwb_dev_put(&rc->uwb_dev); +} + +extern int uwb_rc_reset(struct uwb_rc *rc); +extern int uwb_rc_beacon(struct uwb_rc *rc, + int channel, unsigned bpst_offset); +extern int uwb_rc_scan(struct uwb_rc *rc, + unsigned channel, enum uwb_scan_type type, + unsigned bpst_offset); +extern int uwb_rc_send_all_drp_ie(struct uwb_rc *rc); +extern ssize_t uwb_rc_print_IEs(struct uwb_rc *rc, char *, size_t); +extern void uwb_rc_ie_init(struct uwb_rc *); +extern void uwb_rc_ie_init(struct uwb_rc *); +extern ssize_t uwb_rc_ie_setup(struct uwb_rc *); +extern void uwb_rc_ie_release(struct uwb_rc *); +extern int uwb_rc_ie_add(struct uwb_rc *, + const struct uwb_ie_hdr *, size_t); +extern int uwb_rc_ie_rm(struct uwb_rc *, enum uwb_ie); +extern int uwb_rc_set_identification_ie(struct uwb_rc *); + +extern const char *uwb_rc_strerror(unsigned code); + +/* + * Time to wait for a response to an RC command. + * + * Some commands can take a long time to response. e.g., START_BEACON + * may scan for several superframes before joining an existing beacon + * group and this can take around 600 ms. + */ +#define UWB_RC_CMD_TIMEOUT_MS 1000 /* ms */ + +/* + * Notification/Event Handlers + */ + +struct uwb_rc_neh; + +typedef void (*uwb_rc_neh_cb_f)(struct uwb_rc *rc, void *arg, + struct uwb_rceb *reply, ssize_t reply_size); + +void uwb_rc_neh_create(struct uwb_rc *rc); +void uwb_rc_neh_destroy(struct uwb_rc *rc); + +struct uwb_rc_neh *uwb_rc_neh_add(struct uwb_rc *rc, struct uwb_rccb *cmd, + u8 expected_type, u16 expected_event, + uwb_rc_neh_cb_f cb, void *arg); +void uwb_rc_neh_rm(struct uwb_rc *rc, struct uwb_rc_neh *neh); +void uwb_rc_neh_arm(struct uwb_rc *rc, struct uwb_rc_neh *neh); +void uwb_rc_neh_put(struct uwb_rc_neh *neh); + +/* Event size tables */ +extern int uwb_est_create(void); +extern void uwb_est_destroy(void); + + +/* + * UWB Events & management daemon + * + * The UWBD daemon receives events following the RCI interface for + * notifications (with an RCEB header)...basically it acts on the + * notifications from that the radio controllers pipe to him. + * + * FIXME: rename events to notifications (as that's what they + * are)...however, that'll mess with uwb_notifs. + */ + +/** + * UWB Event + * + * @rc: Radio controller that emitted the event (referenced) + * @size: Size of the buffer (ie: Guaranteed to contain at least + * a full 'struct uwb_rceb') + * @ts_jiffies: Timestamp, when was it received + * @rceb: Pointer to a kmalloced() event payload + */ +/* FIXME: rename to uwb_evt for consistency */ +struct uwb_event { + struct list_head list_node; + struct uwb_rc *rc; + size_t size; + unsigned long ts_jiffies; + struct uwb_rceb *rceb; +}; +extern void uwbd_start(void); +extern void uwbd_stop(void); +extern struct uwb_event *uwb_event_alloc(size_t, gfp_t gfp_mask); +extern void uwbd_event_queue(struct uwb_event *); + +/* UWB event handlers */ +extern int uwbd_evt_handle_rc_beacon(struct uwb_event *); +extern int uwbd_evt_handle_rc_beacon_size(struct uwb_event *); +extern int uwbd_evt_handle_rc_bpoie_change(struct uwb_event *); +extern int uwbd_evt_handle_rc_bp_slot_change(struct uwb_event *); +extern int uwbd_evt_handle_rc_drp(struct uwb_event *); +extern int uwbd_evt_handle_rc_drp_avail(struct uwb_event *); + + +/* + * Address management + */ +int uwb_rc_dev_addr_assign(struct uwb_rc *rc); +int uwbd_evt_handle_rc_dev_addr_conflict(struct uwb_event *evt); + +/* + * UWB Beacon Cache + * + * Each beacon we received is kept in a cache--when we receive that + * beacon consistently, that means there is a new device that we have + * to add to the system. + */ + +extern unsigned long beacon_timeout_ms; + +/** Beacon cache list */ +struct uwb_beca { + struct list_head list; + size_t entries; + struct mutex mutex; +}; + +extern struct uwb_beca uwb_beca; + +/** + * Beacon cache entry + * + * @jiffies_refresh: last time a beacon was received that refreshed + * this cache entry. + * @uwb_dev: device connected to this beacon. This pointer is not + * safe, you need to get it with uwb_dev_try_get() + * + * @hits: how many time we have seen this beacon since last time we + * cleared it + */ +struct uwb_beca_e { + struct mutex mutex; + struct kref refcnt; + struct list_head node; + struct uwb_mac_addr *mac_addr; + struct uwb_dev_addr dev_addr; + u8 hits; + unsigned long ts_jiffies; + struct uwb_dev *uwb_dev; + struct uwb_rc_evt_beacon *be; + struct stats lqe_stats, rssi_stats; /* radio statistics */ +}; +struct uwb_beacon_frame; +extern ssize_t uwb_bce_print_IEs(struct uwb_dev *, struct uwb_beca_e *, + char *, size_t); +extern struct uwb_beca_e *__uwb_beca_add(struct uwb_rc_evt_beacon *, + struct uwb_beacon_frame *, + unsigned long); + +extern void uwb_bce_kfree(struct kref *_bce); +static inline void uwb_bce_get(struct uwb_beca_e *bce) +{ + kref_get(&bce->refcnt); +} +static inline void uwb_bce_put(struct uwb_beca_e *bce) +{ + kref_put(&bce->refcnt, uwb_bce_kfree); +} +extern void uwb_beca_purge(void); +extern void uwb_beca_release(void); + +struct uwb_dev *uwb_dev_get_by_devaddr(struct uwb_rc *rc, + const struct uwb_dev_addr *devaddr); +struct uwb_dev *uwb_dev_get_by_macaddr(struct uwb_rc *rc, + const struct uwb_mac_addr *macaddr); + +/* -- UWB Sysfs representation */ +extern struct class uwb_rc_class; +extern struct device_attribute dev_attr_mac_address; +extern struct device_attribute dev_attr_dev_address; +extern struct device_attribute dev_attr_beacon; +extern struct device_attribute dev_attr_scan; +extern struct device_attribute dev_attr_event_stats; + +/* -- DRP Bandwidth allocator: bandwidth allocations, reservations, DRP */ +void uwb_rsv_init(struct uwb_rc *rc); +int uwb_rsv_setup(struct uwb_rc *rc); +void uwb_rsv_cleanup(struct uwb_rc *rc); + +void uwb_rsv_set_state(struct uwb_rsv *rsv, enum uwb_rsv_state new_state); +void uwb_rsv_remove(struct uwb_rsv *rsv); +struct uwb_rsv *uwb_rsv_find(struct uwb_rc *rc, struct uwb_dev *src, + struct uwb_ie_drp *drp_ie); +void uwb_rsv_sched_update(struct uwb_rc *rc); + +void uwb_drp_handle_timeout(struct uwb_rsv *rsv); +int uwb_drp_ie_update(struct uwb_rsv *rsv); +void uwb_drp_ie_to_bm(struct uwb_mas_bm *bm, const struct uwb_ie_drp *drp_ie); + +void uwb_drp_avail_init(struct uwb_rc *rc); +int uwb_drp_avail_reserve_pending(struct uwb_rc *rc, struct uwb_mas_bm *mas); +void uwb_drp_avail_reserve(struct uwb_rc *rc, struct uwb_mas_bm *mas); +void uwb_drp_avail_release(struct uwb_rc *rc, struct uwb_mas_bm *mas); +void uwb_drp_avail_ie_update(struct uwb_rc *rc); + +/* -- PAL support */ +void uwb_rc_pal_init(struct uwb_rc *rc); + +/* -- Misc */ + +extern ssize_t uwb_mac_frame_hdr_print(char *, size_t, + const struct uwb_mac_frame_hdr *); + +/* -- Debug interface */ +void uwb_dbg_init(void); +void uwb_dbg_exit(void); +void uwb_dbg_add_rc(struct uwb_rc *rc); +void uwb_dbg_del_rc(struct uwb_rc *rc); + +/* Workarounds for version specific stuff */ + +static inline void uwb_dev_lock(struct uwb_dev *uwb_dev) +{ + down(&uwb_dev->dev.sem); +} + +static inline void uwb_dev_unlock(struct uwb_dev *uwb_dev) +{ + up(&uwb_dev->dev.sem); +} + +#endif /* #ifndef __UWB_INTERNAL_H__ */ diff --git a/drivers/uwb/uwbd.c b/drivers/uwb/uwbd.c new file mode 100644 index 000000000000..89a8975b34d6 --- /dev/null +++ b/drivers/uwb/uwbd.c @@ -0,0 +1,425 @@ +/* + * Ultra Wide Band + * Neighborhood Management Daemon + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * This daemon takes care of maintaing information that describes the + * UWB neighborhood that the radios in this machine can see. It also + * keeps a tab of which devices are visible, makes sure each HC sits + * on a different channel to avoid interfering, etc. + * + * Different drivers (radio controller, device, any API in general) + * communicate with this daemon through an event queue. Daemon wakes + * up, takes a list of events and handles them one by one; handling + * function is extracted from a table based on the event's type and + * subtype. Events are freed only if the handling function says so. + * + * . Lock protecting the event list has to be an spinlock and locked + * with IRQSAVE because it might be called from an interrupt + * context (ie: when events arrive and the notification drops + * down from the ISR). + * + * . UWB radio controller drivers queue events to the daemon using + * uwbd_event_queue(). They just get the event, chew it to make it + * look like UWBD likes it and pass it in a buffer allocated with + * uwb_event_alloc(). + * + * EVENTS + * + * Events have a type, a subtype, a lenght, some other stuff and the + * data blob, which depends on the event. The header is 'struct + * uwb_event'; for payloads, see 'struct uwbd_evt_*'. + * + * EVENT HANDLER TABLES + * + * To find a handling function for an event, the type is used to index + * a subtype-table in the type-table. The subtype-table is indexed + * with the subtype to get the function that handles the event. Start + * with the main type-table 'uwbd_evt_type_handler'. + * + * DEVICES + * + * Devices are created when a bunch of beacons have been received and + * it is stablished that the device has stable radio presence. CREATED + * only, not configured. Devices are ONLY configured when an + * Application-Specific IE Probe is receieved, in which the device + * declares which Protocol ID it groks. Then the device is CONFIGURED + * (and the driver->probe() stuff of the device model is invoked). + * + * Devices are considered disconnected when a certain number of + * beacons are not received in an amount of time. + * + * Handler functions are called normally uwbd_evt_handle_*(). + */ + +#include <linux/kthread.h> +#include <linux/module.h> +#include <linux/freezer.h> +#include "uwb-internal.h" + +#define D_LOCAL 1 +#include <linux/uwb/debug.h> + + +/** + * UWBD Event handler function signature + * + * Return !0 if the event needs not to be freed (ie the handler + * takes/took care of it). 0 means the daemon code will free the + * event. + * + * @evt->rc is already referenced and guaranteed to exist. See + * uwb_evt_handle(). + */ +typedef int (*uwbd_evt_handler_f)(struct uwb_event *); + +/** + * Properties of a UWBD event + * + * @handler: the function that will handle this event + * @count: number of instances since startup that this event has been + * seen + * @name: text name of event + */ +struct uwbd_event { + uwbd_evt_handler_f handler; + unsigned long count; + const char *name; +}; + +/** Table of handlers for and properties of the UWBD Radio Control Events */ +static +struct uwbd_event uwbd_events[] = { + [UWB_RC_EVT_BEACON] = { + .handler = uwbd_evt_handle_rc_beacon, + .count = 0, + .name = "BEACON_RECEIVED" + }, + [UWB_RC_EVT_BEACON_SIZE] = { + .handler = uwbd_evt_handle_rc_beacon_size, + .count = 0, + .name = "BEACON_SIZE_CHANGE" + }, + [UWB_RC_EVT_BPOIE_CHANGE] = { + .handler = uwbd_evt_handle_rc_bpoie_change, + .count = 0, + .name = "BPOIE_CHANGE" + }, + [UWB_RC_EVT_BP_SLOT_CHANGE] = { + .handler = uwbd_evt_handle_rc_bp_slot_change, + .count = 0, + .name = "BP_SLOT_CHANGE" + }, + [UWB_RC_EVT_DRP_AVAIL] = { + .handler = uwbd_evt_handle_rc_drp_avail, + .count = 0, + .name = "DRP_AVAILABILITY_CHANGE" + }, + [UWB_RC_EVT_DRP] = { + .handler = uwbd_evt_handle_rc_drp, + .count = 0, + .name = "DRP" + }, + [UWB_RC_EVT_DEV_ADDR_CONFLICT] = { + .handler = uwbd_evt_handle_rc_dev_addr_conflict, + .count = 0, + .name = "DEV_ADDR_CONFLICT", + }, +}; + + + +struct uwbd_evt_type_handler { + const char *name; + struct uwbd_event *uwbd_events; + size_t size; +}; + +#define UWBD_EVT_TYPE_HANDLER(n,a) { \ + .name = (n), \ + .uwbd_events = (a), \ + .size = sizeof(a)/sizeof((a)[0]) \ +} + + +/** Table of handlers for each UWBD Event type. */ +static +struct uwbd_evt_type_handler uwbd_evt_type_handlers[] = { + [UWB_RC_CET_GENERAL] = UWBD_EVT_TYPE_HANDLER("RC", uwbd_events) +}; + +static const +size_t uwbd_evt_type_handlers_len = + sizeof(uwbd_evt_type_handlers) / sizeof(uwbd_evt_type_handlers[0]); + + +/** + * Handle an event passed to the UWB Daemon + * + * @evt: the event to handle + * @returns: 0 if the event can be kfreed, !0 on the contrary + * (somebody else took ownership) [coincidentally, returning + * a <0 errno code will free it :)]. + * + * Looks up the two indirection tables (one for the type, one for the + * subtype) to decide which function handles it and then calls the + * handler. + * + * The event structure passed to the event handler has the radio + * controller in @evt->rc referenced. The reference will be dropped + * once the handler returns, so if it needs it for longer (async), + * it'll need to take another one. + */ +static +int uwbd_event_handle(struct uwb_event *evt) +{ + int result; + struct uwbd_evt_type_handler *type_table; + uwbd_evt_handler_f handler; + struct uwb_rc *rc; + u8 type, context; + u16 event; + + rc = evt->rc; + if (rc == NULL) { + if (printk_ratelimit()) + printk(KERN_ERR "UWBD: BUG: received event " + "with NULL rc\n"); + return -EINVAL; + } + result = 0; + if (!rc->ready) /* Not ready to process stuff, drop it */ + goto out_put; + type = evt->rceb->bEventType; + event = le16_to_cpu(evt->rceb->wEvent); + context = evt->rceb->bEventContext; + result = -EINVAL; + if (type > uwbd_evt_type_handlers_len) { + if (printk_ratelimit()) + printk(KERN_ERR "UWBD: event type %u: unknown " + "(too high)\n", type); + goto out_put; + } + type_table = &uwbd_evt_type_handlers[type]; + if (type_table->uwbd_events == NULL) { + if (printk_ratelimit()) + printk(KERN_ERR "UWBD: event type %u: unknown\n", type); + goto out_put; + } + if (event > type_table->size) { + if (printk_ratelimit()) + printk(KERN_ERR "UWBD: event %s[%u]: " + "unknown (too high)\n", type_table->name, event); + goto out_put; + } + handler = type_table->uwbd_events[event].handler; + if (handler == NULL) { + if (printk_ratelimit()) + printk(KERN_ERR "UWBD: event %s[%u]: unknown\n", + type_table->name, event); + goto out_put; + } + d_printf(3, NULL, "processing 0x%02x/%04x/%02x, %zu bytes\n", + type, event, context, evt->size); + type_table->uwbd_events[event].count++; + result = (*handler)(evt); + if (result < 0) { + if (printk_ratelimit()) + printk(KERN_ERR "UWBD: event 0x%02x/%04x/%02x, " + "table %s[%u]: handling failed: %d\n", + type, event, context, type_table->name, + event, result); + result = 0; /* make sure uwbd() frees the evt buffer */ + } +out_put: + __uwb_rc_put(rc); /* for the __uwb_rc_get() in uwb_rc_notif_cb() */ + return result; +} + + +/* The UWB Daemon */ + + +/** Daemon's PID: used to decide if we can queue or not */ +static int uwbd_pid; +/** Daemon's task struct for managing the kthread */ +static struct task_struct *uwbd_task; +/** Daemon's waitqueue for waiting for new events */ +static DECLARE_WAIT_QUEUE_HEAD(uwbd_wq); +/** Daemon's list of events; we queue/dequeue here */ +static struct list_head uwbd_event_list = LIST_HEAD_INIT(uwbd_event_list); +/** Daemon's list lock to protect concurent access */ +static DEFINE_SPINLOCK(uwbd_event_list_lock); + + +/** + * UWB Daemon + * + * Listens to all UWB notifications and takes care to track the state + * of the UWB neighboorhood for the kernel. When we do a run, we + * spinlock, move the list to a private copy and release the + * lock. Hold it as little as possible. Not a conflict: it is + * guaranteed we own the events in the private list. + * + * FIXME: should change so we don't have a 1HZ timer all the time, but + * only if there are devices. + */ +static int uwbd(void *unused) +{ + unsigned long flags; + struct list_head list = LIST_HEAD_INIT(list); + struct uwb_event *evt, *nxt; + int should_stop = 0, should_keep; + while (1) { + wait_event_interruptible_timeout( + uwbd_wq, + !list_empty(&uwbd_event_list) + || (should_stop = kthread_should_stop()), + HZ); + if (should_stop) + break; + try_to_freeze(); + spin_lock_irqsave(&uwbd_event_list_lock, flags); + list_splice_init(&uwbd_event_list, &list); + spin_unlock_irqrestore(&uwbd_event_list_lock, flags); + list_for_each_entry_safe(evt, nxt, &list, list_node) { + list_del(&evt->list_node); + should_keep = uwbd_event_handle(evt); + if (!should_keep) + kfree(evt->rceb); + kfree(evt); + } + uwb_beca_purge(); /* Purge devices that left */ + } + return 0; +} + + +/** Start the UWB daemon */ +void uwbd_start(void) +{ + uwbd_task = kthread_run(uwbd, NULL, "uwbd"); + if (uwbd_task == NULL) + printk(KERN_ERR "UWB: Cannot start management daemon; " + "UWB won't work\n"); + else + uwbd_pid = uwbd_task->pid; +} + +/* Stop the UWB daemon and free any unprocessed events */ +void uwbd_stop(void) +{ + unsigned long flags; + struct uwb_event *evt, *nxt; + kthread_stop(uwbd_task); + spin_lock_irqsave(&uwbd_event_list_lock, flags); + uwbd_pid = 0; + list_for_each_entry_safe(evt, nxt, &uwbd_event_list, list_node) { + kfree(evt->rceb); + kfree(evt); + } + spin_unlock_irqrestore(&uwbd_event_list_lock, flags); + uwb_beca_release(); +} + +/* + * Queue an event for the management daemon + * + * When some lower layer receives an event, it uses this function to + * push it forward to the UWB daemon. + * + * Once you pass the event, you don't own it any more, but the daemon + * does. It will uwb_event_free() it when done, so make sure you + * uwb_event_alloc()ed it or bad things will happen. + * + * If the daemon is not running, we just free the event. + */ +void uwbd_event_queue(struct uwb_event *evt) +{ + unsigned long flags; + spin_lock_irqsave(&uwbd_event_list_lock, flags); + if (uwbd_pid != 0) { + list_add(&evt->list_node, &uwbd_event_list); + wake_up_all(&uwbd_wq); + } else { + kfree(evt->rceb); + kfree(evt); + } + spin_unlock_irqrestore(&uwbd_event_list_lock, flags); + return; +} + +/** + * Print the statistics for all events in a table + * + * @returns: the number of characters printed to buffer, 0 if buffer is + * full + */ +static size_t uwbd_print_evt_stats(struct uwbd_evt_type_handler *type_table, + char *buf, size_t buf_size) +{ + struct uwbd_event *events; + size_t evtmax; + unsigned cnt; + ssize_t result; + ssize_t org_buf_size = buf_size; + + events = type_table->uwbd_events; + evtmax = type_table->size; + for (cnt = 0; cnt < evtmax; cnt++) { + if (events[cnt].handler != NULL) { + result = scnprintf(buf, buf_size, + "%-5s \t %-25s\t %lu \n", + type_table->name, + events[cnt].name, + events[cnt].count); + buf_size = result >= buf_size ? 0 : + buf_size - result; + if (buf_size > 0) + buf += result; + } + } + return org_buf_size - buf_size; +} + +/** + * Print the statistics of all notifications from the device. + * + * The tables of all event types are traversed to get statistics of every + * notification handled by the driver. + */ +static ssize_t uwbd_evt_stats_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + unsigned cnt; + struct uwbd_evt_type_handler *type_table; + size_t consumed; + + consumed = sprintf(buf, "#EVENT_TYPE EVENT NUM_RECEIVED\n\n"); + for (cnt = 0; cnt < uwbd_evt_type_handlers_len; cnt++) { + type_table = &uwbd_evt_type_handlers[cnt]; + if (type_table->uwbd_events != NULL && consumed < PAGE_SIZE) + consumed += uwbd_print_evt_stats(type_table, + buf + consumed, + PAGE_SIZE - consumed); + } + return consumed; +} +DEVICE_ATTR(event_stats, S_IRUGO, uwbd_evt_stats_show, NULL); diff --git a/drivers/uwb/whc-rc.c b/drivers/uwb/whc-rc.c new file mode 100644 index 000000000000..f889e4ac44ec --- /dev/null +++ b/drivers/uwb/whc-rc.c @@ -0,0 +1,511 @@ +/* + * Wireless Host Controller: Radio Control Interface (WHCI v0.95[2.3]) + * Radio Control command/event transport to the UWB stack + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Initialize and hook up the Radio Control interface. + * + * For each device probed, creates an 'struct whcrc' which contains + * just the representation of the UWB Radio Controller, and the logic + * for reading notifications and passing them to the UWB Core. + * + * So we initialize all of those, register the UWB Radio Controller + * and setup the notification/event handle to pipe the notifications + * to the UWB management Daemon. + * + * Once uwb_rc_add() is called, the UWB stack takes control, resets + * the radio and readies the device to take commands the UWB + * API/user-space. + * + * Note this driver is just a transport driver; the commands are + * formed at the UWB stack and given to this driver who will deliver + * them to the hw and transfer the replies/notifications back to the + * UWB stack through the UWB daemon (UWBD). + */ +#include <linux/version.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/interrupt.h> +#include <linux/workqueue.h> +#include <linux/uwb.h> +#include <linux/uwb/whci.h> +#include <linux/uwb/umc.h> +#include "uwb-internal.h" + +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + +/** + * Descriptor for an instance of the UWB Radio Control Driver that + * attaches to the URC interface of the WHCI PCI card. + * + * Unless there is a lock specific to the 'data members', all access + * is protected by uwb_rc->mutex. + */ +struct whcrc { + struct umc_dev *umc_dev; + struct uwb_rc *uwb_rc; /* UWB host controller */ + + unsigned long area; + void __iomem *rc_base; + size_t rc_len; + spinlock_t irq_lock; + + void *evt_buf, *cmd_buf; + dma_addr_t evt_dma_buf, cmd_dma_buf; + wait_queue_head_t cmd_wq; + struct work_struct event_work; +}; + + +/** + * Execute an UWB RC command on WHCI/RC + * + * @rc: Instance of a Radio Controller that is a whcrc + * @cmd: Buffer containing the RCCB and payload to execute + * @cmd_size: Size of the command buffer. + * + * We copy the command into whcrc->cmd_buf (as it is pretty and + * aligned`and physically contiguous) and then press the right keys in + * the controller's URCCMD register to get it to read it. We might + * have to wait for the cmd_sem to be open to us. + * + * NOTE: rc's mutex has to be locked + */ +static int whcrc_cmd(struct uwb_rc *uwb_rc, + const struct uwb_rccb *cmd, size_t cmd_size) +{ + int result = 0; + struct whcrc *whcrc = uwb_rc->priv; + struct device *dev = &whcrc->umc_dev->dev; + u32 urccmd; + + d_fnstart(3, dev, "(%p, %p, %zu)\n", uwb_rc, cmd, cmd_size); + might_sleep(); + + if (cmd_size >= 4096) { + result = -E2BIG; + goto error; + } + + result = wait_event_timeout(whcrc->cmd_wq, + !(le_readl(whcrc->rc_base + URCCMD) & URCCMD_ACTIVE), HZ/2); + if (result == 0) { + dev_err(dev, "device is not ready to execute commands\n"); + result = -ETIMEDOUT; + goto error; + } + + memmove(whcrc->cmd_buf, cmd, cmd_size); + le_writeq(whcrc->cmd_dma_buf, whcrc->rc_base + URCCMDADDR); + + spin_lock(&whcrc->irq_lock); + urccmd = le_readl(whcrc->rc_base + URCCMD); + urccmd &= ~(URCCMD_EARV | URCCMD_SIZE_MASK); + le_writel(urccmd | URCCMD_ACTIVE | URCCMD_IWR | cmd_size, + whcrc->rc_base + URCCMD); + spin_unlock(&whcrc->irq_lock); + +error: + d_fnend(3, dev, "(%p, %p, %zu) = %d\n", + uwb_rc, cmd, cmd_size, result); + return result; + + + +} + +/** + * Reset event reception mechanism and tell hw we are ready to get more + * + * We have read all the events in the event buffer, so we are ready to + * reset it to the beginning. + * + * This is only called during initialization or after an event buffer + * has been retired. This means we can be sure that event processing + * is disabled and it's safe to update the URCEVTADDR register. + * + * There's no need to wait for the event processing to start as the + * URC will not clear URCCMD_ACTIVE until (internal) event buffer + * space is available. + */ +static +void whcrc_enable_events(struct whcrc *whcrc) +{ + struct device *dev = &whcrc->umc_dev->dev; + u32 urccmd; + + d_fnstart(4, dev, "(whcrc %p)\n", whcrc); + + le_writeq(whcrc->evt_dma_buf, whcrc->rc_base + URCEVTADDR); + + spin_lock(&whcrc->irq_lock); + urccmd = le_readl(whcrc->rc_base + URCCMD) & ~URCCMD_ACTIVE; + le_writel(urccmd | URCCMD_EARV, whcrc->rc_base + URCCMD); + spin_unlock(&whcrc->irq_lock); + + d_fnend(4, dev, "(whcrc %p) = void\n", whcrc); +} + +static void whcrc_event_work(struct work_struct *work) +{ + struct whcrc *whcrc = container_of(work, struct whcrc, event_work); + struct device *dev = &whcrc->umc_dev->dev; + size_t size; + u64 urcevtaddr; + + urcevtaddr = le_readq(whcrc->rc_base + URCEVTADDR); + size = urcevtaddr & URCEVTADDR_OFFSET_MASK; + + d_printf(3, dev, "received %zu octet event\n", size); + d_dump(4, dev, whcrc->evt_buf, size > 32? 32 : size); + + uwb_rc_neh_grok(whcrc->uwb_rc, whcrc->evt_buf, size); + whcrc_enable_events(whcrc); +} + +/** + * Catch interrupts? + * + * We ack inmediately (and expect the hw to do the right thing and + * raise another IRQ if things have changed :) + */ +static +irqreturn_t whcrc_irq_cb(int irq, void *_whcrc) +{ + struct whcrc *whcrc = _whcrc; + struct device *dev = &whcrc->umc_dev->dev; + u32 urcsts; + + d_fnstart(4, dev, "irq %d _whcrc %p)\n", irq, _whcrc); + urcsts = le_readl(whcrc->rc_base + URCSTS); + if (!(urcsts & URCSTS_INT_MASK)) + return IRQ_NONE; + le_writel(urcsts & URCSTS_INT_MASK, whcrc->rc_base + URCSTS); + + d_printf(4, dev, "acked 0x%08x, urcsts 0x%08x\n", + le_readl(whcrc->rc_base + URCSTS), urcsts); + + if (whcrc->uwb_rc == NULL) { + if (printk_ratelimit()) + dev_dbg(dev, "Received interrupt when not yet " + "ready!\n"); + goto out; + } + + if (urcsts & URCSTS_HSE) { + dev_err(dev, "host system error -- hardware halted\n"); + /* FIXME: do something sensible here */ + goto out; + } + if (urcsts & URCSTS_ER) { + d_printf(3, dev, "ER: event ready\n"); + schedule_work(&whcrc->event_work); + } + if (urcsts & URCSTS_RCI) { + d_printf(3, dev, "RCI: ready to execute another command\n"); + wake_up_all(&whcrc->cmd_wq); + } +out: + return IRQ_HANDLED; +} + + +/** + * Initialize a UMC RC interface: map regions, get (shared) IRQ + */ +static +int whcrc_setup_rc_umc(struct whcrc *whcrc) +{ + int result = 0; + struct device *dev = &whcrc->umc_dev->dev; + struct umc_dev *umc_dev = whcrc->umc_dev; + + whcrc->area = umc_dev->resource.start; + whcrc->rc_len = umc_dev->resource.end - umc_dev->resource.start + 1; + result = -EBUSY; + if (request_mem_region(whcrc->area, whcrc->rc_len, KBUILD_MODNAME) + == NULL) { + dev_err(dev, "can't request URC region (%zu bytes @ 0x%lx): %d\n", + whcrc->rc_len, whcrc->area, result); + goto error_request_region; + } + + whcrc->rc_base = ioremap_nocache(whcrc->area, whcrc->rc_len); + if (whcrc->rc_base == NULL) { + dev_err(dev, "can't ioremap registers (%zu bytes @ 0x%lx): %d\n", + whcrc->rc_len, whcrc->area, result); + goto error_ioremap_nocache; + } + + result = request_irq(umc_dev->irq, whcrc_irq_cb, IRQF_SHARED, + KBUILD_MODNAME, whcrc); + if (result < 0) { + dev_err(dev, "can't allocate IRQ %d: %d\n", + umc_dev->irq, result); + goto error_request_irq; + } + + result = -ENOMEM; + whcrc->cmd_buf = dma_alloc_coherent(&umc_dev->dev, PAGE_SIZE, + &whcrc->cmd_dma_buf, GFP_KERNEL); + if (whcrc->cmd_buf == NULL) { + dev_err(dev, "Can't allocate cmd transfer buffer\n"); + goto error_cmd_buffer; + } + + whcrc->evt_buf = dma_alloc_coherent(&umc_dev->dev, PAGE_SIZE, + &whcrc->evt_dma_buf, GFP_KERNEL); + if (whcrc->evt_buf == NULL) { + dev_err(dev, "Can't allocate evt transfer buffer\n"); + goto error_evt_buffer; + } + d_printf(3, dev, "UWB RC Interface: %zu bytes at 0x%p, irq %u\n", + whcrc->rc_len, whcrc->rc_base, umc_dev->irq); + return 0; + +error_evt_buffer: + dma_free_coherent(&umc_dev->dev, PAGE_SIZE, whcrc->cmd_buf, + whcrc->cmd_dma_buf); +error_cmd_buffer: + free_irq(umc_dev->irq, whcrc); +error_request_irq: + iounmap(whcrc->rc_base); +error_ioremap_nocache: + release_mem_region(whcrc->area, whcrc->rc_len); +error_request_region: + return result; +} + + +/** + * Release RC's UMC resources + */ +static +void whcrc_release_rc_umc(struct whcrc *whcrc) +{ + struct umc_dev *umc_dev = whcrc->umc_dev; + + dma_free_coherent(&umc_dev->dev, PAGE_SIZE, whcrc->evt_buf, + whcrc->evt_dma_buf); + dma_free_coherent(&umc_dev->dev, PAGE_SIZE, whcrc->cmd_buf, + whcrc->cmd_dma_buf); + free_irq(umc_dev->irq, whcrc); + iounmap(whcrc->rc_base); + release_mem_region(whcrc->area, whcrc->rc_len); +} + + +/** + * whcrc_start_rc - start a WHCI radio controller + * @whcrc: the radio controller to start + * + * Reset the UMC device, start the radio controller, enable events and + * finally enable interrupts. + */ +static int whcrc_start_rc(struct whcrc *whcrc) +{ + int result = 0; + struct device *dev = &whcrc->umc_dev->dev; + unsigned long start, duration; + + /* Reset the thing */ + le_writel(URCCMD_RESET, whcrc->rc_base + URCCMD); + if (d_test(3)) + start = jiffies; + if (whci_wait_for(dev, whcrc->rc_base + URCCMD, URCCMD_RESET, 0, + 5000, "device to reset at init") < 0) { + result = -EBUSY; + goto error; + } else if (d_test(3)) { + duration = jiffies - start; + if (duration > msecs_to_jiffies(40)) + dev_err(dev, "Device took %ums to " + "reset. MAX expected: 40ms\n", + jiffies_to_msecs(duration)); + } + + /* Set the event buffer, start the controller (enable IRQs later) */ + le_writel(0, whcrc->rc_base + URCINTR); + le_writel(URCCMD_RS, whcrc->rc_base + URCCMD); + result = -ETIMEDOUT; + if (d_test(3)) + start = jiffies; + if (whci_wait_for(dev, whcrc->rc_base + URCSTS, URCSTS_HALTED, 0, + 5000, "device to start") < 0) + goto error; + if (d_test(3)) { + duration = jiffies - start; + if (duration > msecs_to_jiffies(40)) + dev_err(dev, "Device took %ums to start. " + "MAX expected: 40ms\n", + jiffies_to_msecs(duration)); + } + whcrc_enable_events(whcrc); + result = 0; + le_writel(URCINTR_EN_ALL, whcrc->rc_base + URCINTR); +error: + return result; +} + + +/** + * whcrc_stop_rc - stop a WHCI radio controller + * @whcrc: the radio controller to stop + * + * Disable interrupts and cancel any pending event processing work + * before clearing the Run/Stop bit. + */ +static +void whcrc_stop_rc(struct whcrc *whcrc) +{ + struct umc_dev *umc_dev = whcrc->umc_dev; + + le_writel(0, whcrc->rc_base + URCINTR); + cancel_work_sync(&whcrc->event_work); + + le_writel(0, whcrc->rc_base + URCCMD); + whci_wait_for(&umc_dev->dev, whcrc->rc_base + URCSTS, + URCSTS_HALTED, 0, 40, "URCSTS.HALTED"); +} + +static void whcrc_init(struct whcrc *whcrc) +{ + spin_lock_init(&whcrc->irq_lock); + init_waitqueue_head(&whcrc->cmd_wq); + INIT_WORK(&whcrc->event_work, whcrc_event_work); +} + +/** + * Initialize the radio controller. + * + * NOTE: we setup whcrc->uwb_rc before calling uwb_rc_add(); in the + * IRQ handler we use that to determine if the hw is ready to + * handle events. Looks like a race condition, but it really is + * not. + */ +static +int whcrc_probe(struct umc_dev *umc_dev) +{ + int result; + struct uwb_rc *uwb_rc; + struct whcrc *whcrc; + struct device *dev = &umc_dev->dev; + + d_fnstart(3, dev, "(umc_dev %p)\n", umc_dev); + result = -ENOMEM; + uwb_rc = uwb_rc_alloc(); + if (uwb_rc == NULL) { + dev_err(dev, "unable to allocate RC instance\n"); + goto error_rc_alloc; + } + whcrc = kzalloc(sizeof(*whcrc), GFP_KERNEL); + if (whcrc == NULL) { + dev_err(dev, "unable to allocate WHC-RC instance\n"); + goto error_alloc; + } + whcrc_init(whcrc); + whcrc->umc_dev = umc_dev; + + result = whcrc_setup_rc_umc(whcrc); + if (result < 0) { + dev_err(dev, "Can't setup RC UMC interface: %d\n", result); + goto error_setup_rc_umc; + } + result = whcrc_start_rc(whcrc); + if (result < 0) { + dev_err(dev, "Can't setup RC interface: %d\n", result); + goto error_start_rc; + } + whcrc->uwb_rc = uwb_rc; + result = uwb_rc_add(uwb_rc, dev, whcrc, whcrc_cmd, NULL, NULL); + if (result < 0) + goto error_rc_add; + umc_set_drvdata(umc_dev, whcrc); + d_fnend(3, dev, "(umc_dev %p) = 0\n", umc_dev); + return 0; + +error_rc_add: + whcrc_stop_rc(whcrc); +error_start_rc: + whcrc_release_rc_umc(whcrc); +error_setup_rc_umc: + kfree(whcrc); +error_alloc: + uwb_rc_put(uwb_rc); +error_rc_alloc: + d_fnend(3, dev, "(umc_dev %p) = %d\n", umc_dev, result); + return result; +} + +/** + * Clean up the radio control resources + * + * When we up the command semaphore, everybody possibly held trying to + * execute a command should be granted entry and then they'll see the + * host is quiescing and up it (so it will chain to the next waiter). + * This should not happen (in any case), as we can only remove when + * there are no handles open... + */ +static void whcrc_remove(struct umc_dev *umc_dev) +{ + struct whcrc *whcrc = umc_get_drvdata(umc_dev); + struct uwb_rc *uwb_rc = whcrc->uwb_rc; + + umc_set_drvdata(umc_dev, NULL); + uwb_rc_rm(uwb_rc); + whcrc_stop_rc(whcrc); + whcrc_release_rc_umc(whcrc); + kfree(whcrc); + uwb_rc_put(uwb_rc); + d_printf(1, &umc_dev->dev, "freed whcrc %p\n", whcrc); +} + +/* PCI device ID's that we handle [so it gets loaded] */ +static struct pci_device_id whcrc_id_table[] = { + { PCI_DEVICE_CLASS(PCI_CLASS_WIRELESS_WHCI, ~0) }, + { /* empty last entry */ } +}; +MODULE_DEVICE_TABLE(pci, whcrc_id_table); + +static struct umc_driver whcrc_driver = { + .name = "whc-rc", + .cap_id = UMC_CAP_ID_WHCI_RC, + .probe = whcrc_probe, + .remove = whcrc_remove, +}; + +static int __init whcrc_driver_init(void) +{ + return umc_driver_register(&whcrc_driver); +} +module_init(whcrc_driver_init); + +static void __exit whcrc_driver_exit(void) +{ + umc_driver_unregister(&whcrc_driver); +} +module_exit(whcrc_driver_exit); + +MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>"); +MODULE_DESCRIPTION("Wireless Host Controller Radio Control Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/uwb/whci.c b/drivers/uwb/whci.c new file mode 100644 index 000000000000..d22c2cac8e4b --- /dev/null +++ b/drivers/uwb/whci.c @@ -0,0 +1,274 @@ +/* + * WHCI UWB Multi-interface Controller enumerator. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This file is released under the GNU GPL v2. + */ +#include <linux/delay.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/uwb/whci.h> +#include <linux/uwb/umc.h> +#define D_LOCAL 0 +#include <linux/uwb/debug.h> + + +struct whci_card { + struct pci_dev *pci; + void __iomem *uwbbase; + u8 n_caps; + struct umc_dev *devs[0]; +}; + + +/* Fix faulty HW :( */ +static +u64 whci_capdata_quirks(struct whci_card *card, u64 capdata) +{ + u64 capdata_orig = capdata; + struct pci_dev *pci_dev = card->pci; + if (pci_dev->vendor == PCI_VENDOR_ID_INTEL + && (pci_dev->device == 0x0c3b || pci_dev->device == 0004) + && pci_dev->class == 0x0d1010) { + switch (UWBCAPDATA_TO_CAP_ID(capdata)) { + /* NIC capability has 0x100 bytes of aperture */ + case 0x80: capdata |= 0x40 << 8; break; + /* WUSB capability has 0x80 bytes of aperture + * and ID is 1 */ + case 0x02: + capdata &= ~0xffff; + capdata |= 0x2001; + break; + } + } + if (capdata_orig != capdata) + dev_warn(&pci_dev->dev, + "PCI v%04x d%04x c%06x#%02x: " + "corrected capdata from %016Lx to %016Lx\n", + pci_dev->vendor, pci_dev->device, pci_dev->class, + (unsigned)UWBCAPDATA_TO_CAP_ID(capdata), + (unsigned long long)capdata_orig, + (unsigned long long)capdata); + return capdata; +} + + +/** + * whci_wait_for - wait for a WHCI register to be set + * + * Polls (for at most @max_ms ms) until '*@reg & @mask == @result'. + */ +int whci_wait_for(struct device *dev, u32 __iomem *reg, u32 mask, u32 result, + unsigned long max_ms, const char *tag) +{ + unsigned t = 0; + u32 val; + for (;;) { + val = le_readl(reg); + if ((val & mask) == result) + break; + msleep(10); + if (t >= max_ms) { + dev_err(dev, "timed out waiting for %s ", tag); + return -ETIMEDOUT; + } + t += 10; + } + return 0; +} +EXPORT_SYMBOL_GPL(whci_wait_for); + + +/* + * NOTE: the capinfo and capdata registers are slightly different + * (size and cap-id fields). So for cap #0, we need to fill + * in. Size comes from the size of the register block + * (statically calculated); cap_id comes from nowhere, we use + * zero, that is reserved, for the radio controller, because + * none was defined at the spec level. + */ +static int whci_add_cap(struct whci_card *card, int n) +{ + struct umc_dev *umc; + u64 capdata; + int bar, err; + + umc = umc_device_create(&card->pci->dev, n); + if (umc == NULL) + return -ENOMEM; + + capdata = le_readq(card->uwbbase + UWBCAPDATA(n)); + + bar = UWBCAPDATA_TO_BAR(capdata) << 1; + + capdata = whci_capdata_quirks(card, capdata); + /* Capability 0 is the radio controller. It's size is 32 + * bytes (WHCI0.95[2.3, T2-9]). */ + umc->version = UWBCAPDATA_TO_VERSION(capdata); + umc->cap_id = n == 0? 0 : UWBCAPDATA_TO_CAP_ID(capdata); + umc->bar = bar; + umc->resource.start = pci_resource_start(card->pci, bar) + + UWBCAPDATA_TO_OFFSET(capdata); + umc->resource.end = umc->resource.start + + (n == 0? 0x20 : UWBCAPDATA_TO_SIZE(capdata)) - 1; + umc->resource.name = dev_name(&umc->dev); + umc->resource.flags = card->pci->resource[bar].flags; + umc->resource.parent = &card->pci->resource[bar]; + umc->irq = card->pci->irq; + + err = umc_device_register(umc); + if (err < 0) + goto error; + card->devs[n] = umc; + return 0; + +error: + kfree(umc); + return err; +} + +static void whci_del_cap(struct whci_card *card, int n) +{ + struct umc_dev *umc = card->devs[n]; + + d_fnstart(3, &card->pci->dev, "(card %p, n %d)\n", card, n); + if (umc != NULL) + umc_device_unregister(umc); + d_fnend(3, &card->pci->dev, "(card %p, n %d)\n", card, n); +} + +static int whci_n_caps(struct pci_dev *pci) +{ + void __iomem *uwbbase; + u64 capinfo; + + uwbbase = pci_iomap(pci, 0, 8); + if (!uwbbase) + return -ENOMEM; + capinfo = le_readq(uwbbase + UWBCAPINFO); + pci_iounmap(pci, uwbbase); + + return UWBCAPINFO_TO_N_CAPS(capinfo); +} + +static int whci_probe(struct pci_dev *pci, const struct pci_device_id *id) +{ + struct whci_card *card; + int err, n_caps, n; + + err = pci_enable_device(pci); + if (err < 0) + goto error; + pci_enable_msi(pci); + pci_set_master(pci); + err = -ENXIO; + if (!pci_set_dma_mask(pci, DMA_64BIT_MASK)) + pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK); + else if (!pci_set_dma_mask(pci, DMA_32BIT_MASK)) + pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK); + else + goto error_dma; + + err = n_caps = whci_n_caps(pci); + if (n_caps < 0) + goto error_ncaps; + + err = -ENOMEM; + card = kzalloc(sizeof(struct whci_card) + + sizeof(struct whci_dev *) * (n_caps + 1), + GFP_KERNEL); + if (card == NULL) + goto error_kzalloc; + card->pci = pci; + card->n_caps = n_caps; + + err = -EBUSY; + if (!request_mem_region(pci_resource_start(pci, 0), + UWBCAPDATA_SIZE(card->n_caps), + "whci (capability data)")) + goto error_request_memregion; + err = -ENOMEM; + card->uwbbase = pci_iomap(pci, 0, UWBCAPDATA_SIZE(card->n_caps)); + if (!card->uwbbase) + goto error_iomap; + + /* Add each capability. */ + for (n = 0; n <= card->n_caps; n++) { + err = whci_add_cap(card, n); + if (err < 0 && n == 0) { + dev_err(&pci->dev, "cannot bind UWB radio controller:" + " %d\n", err); + goto error_bind; + } + if (err < 0) + dev_warn(&pci->dev, "warning: cannot bind capability " + "#%u: %d\n", n, err); + } + pci_set_drvdata(pci, card); + return 0; + +error_bind: + pci_iounmap(pci, card->uwbbase); +error_iomap: + release_mem_region(pci_resource_start(pci, 0), UWBCAPDATA_SIZE(card->n_caps)); +error_request_memregion: + kfree(card); +error_kzalloc: +error_ncaps: +error_dma: + pci_disable_device(pci); +error: + return err; +} + +static void whci_remove(struct pci_dev *pci) +{ + struct whci_card *card = pci_get_drvdata(pci); + int n; + + d_fnstart(3, &pci->dev, "(pci %p)\n", pci); + pci_set_drvdata(pci, NULL); + /* Unregister each capability in reverse (so the master device + * is unregistered last). */ + for (n = card->n_caps; n >= 0 ; n--) + whci_del_cap(card, n); + pci_iounmap(pci, card->uwbbase); + release_mem_region(pci_resource_start(pci, 0), UWBCAPDATA_SIZE(card->n_caps)); + kfree(card); + pci_disable_msi(pci); + pci_disable_device(pci); + d_fnend(3, &pci->dev, "(pci %p)\n", pci); +} + +static struct pci_device_id whci_id_table[] = { + { PCI_DEVICE_CLASS(PCI_CLASS_WIRELESS_WHCI, ~0) }, + { 0 }, +}; +MODULE_DEVICE_TABLE(pci, whci_id_table); + + +static struct pci_driver whci_driver = { + .name = "whci", + .id_table = whci_id_table, + .probe = whci_probe, + .remove = whci_remove, +}; + +static int __init whci_init(void) +{ + return pci_register_driver(&whci_driver); +} + +static void __exit whci_exit(void) +{ + pci_unregister_driver(&whci_driver); +} + +module_init(whci_init); +module_exit(whci_exit); + +MODULE_DESCRIPTION("WHCI UWB Multi-interface Controller enumerator"); +MODULE_AUTHOR("Cambridge Silicon Radio Ltd."); +MODULE_LICENSE("GPL"); diff --git a/drivers/uwb/wlp/Makefile b/drivers/uwb/wlp/Makefile new file mode 100644 index 000000000000..c72c11db5b1b --- /dev/null +++ b/drivers/uwb/wlp/Makefile @@ -0,0 +1,10 @@ +obj-$(CONFIG_UWB_WLP) := wlp.o + +wlp-objs := \ + driver.o \ + eda.o \ + messages.o \ + sysfs.o \ + txrx.o \ + wlp-lc.o \ + wss-lc.o diff --git a/drivers/uwb/wlp/driver.c b/drivers/uwb/wlp/driver.c new file mode 100644 index 000000000000..cb8d699b6a67 --- /dev/null +++ b/drivers/uwb/wlp/driver.c @@ -0,0 +1,43 @@ +/* + * WiMedia Logical Link Control Protocol (WLP) + * + * Copyright (C) 2007 Intel Corporation + * Reinette Chatre <reinette.chatre@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Life cycle of WLP substack + * + * FIXME: Docs + */ + +#include <linux/module.h> + +static int __init wlp_subsys_init(void) +{ + return 0; +} +module_init(wlp_subsys_init); + +static void __exit wlp_subsys_exit(void) +{ + return; +} +module_exit(wlp_subsys_exit); + +MODULE_AUTHOR("Reinette Chatre <reinette.chatre@intel.com>"); +MODULE_DESCRIPTION("WiMedia Logical Link Control Protocol (WLP)"); +MODULE_LICENSE("GPL"); diff --git a/drivers/uwb/wlp/eda.c b/drivers/uwb/wlp/eda.c new file mode 100644 index 000000000000..b5bef564d57c --- /dev/null +++ b/drivers/uwb/wlp/eda.c @@ -0,0 +1,449 @@ +/* + * WUSB Wire Adapter: WLP interface + * Ethernet to device address cache + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * We need to be able to map ethernet addresses to device addresses + * and back because there is not explicit relationship between the eth + * addresses used in the ETH frames and the device addresses (no, it + * would not have been simpler to force as ETH address the MBOA MAC + * address...no, not at all :). + * + * A device has one MBOA MAC address and one device address. It is possible + * for a device to have more than one virtual MAC address (although a + * virtual address can be the same as the MBOA MAC address). The device + * address is guaranteed to be unique among the devices in the extended + * beacon group (see ECMA 17.1.1). We thus use the device address as index + * to this cache. We do allow searching based on virtual address as this + * is how Ethernet frames will be addressed. + * + * We need to support virtual EUI-48. Although, right now the virtual + * EUI-48 will always be the same as the MAC SAP address. The EDA cache + * entry thus contains a MAC SAP address as well as the virtual address + * (used to map the network stack address to a neighbor). When we move + * to support more than one virtual MAC on a host then this organization + * will have to change. Perhaps a neighbor has a list of WSSs, each with a + * tag and virtual EUI-48. + * + * On data transmission + * it is used to determine if the neighbor is connected and what WSS it + * belongs to. With this we know what tag to add to the WLP frame. Storing + * the WSS in the EDA cache may be overkill because we only support one + * WSS. Hopefully we will support more than one WSS at some point. + * On data reception it is used to determine the WSS based on + * the tag and address of the transmitting neighbor. + */ + +#define D_LOCAL 5 +#include <linux/netdevice.h> +#include <linux/uwb/debug.h> +#include <linux/etherdevice.h> +#include <linux/wlp.h> +#include "wlp-internal.h" + + +/* FIXME: cache is not purged, only on device close */ + +/* FIXME: does not scale, change to dynamic array */ + +/* + * Initialize the EDA cache + * + * @returns 0 if ok, < 0 errno code on error + * + * Call when the interface is being brought up + * + * NOTE: Keep it as a separate function as the implementation will + * change and be more complex. + */ +void wlp_eda_init(struct wlp_eda *eda) +{ + INIT_LIST_HEAD(&eda->cache); + spin_lock_init(&eda->lock); +} + +/* + * Release the EDA cache + * + * @returns 0 if ok, < 0 errno code on error + * + * Called when the interface is brought down + */ +void wlp_eda_release(struct wlp_eda *eda) +{ + unsigned long flags; + struct wlp_eda_node *itr, *next; + + spin_lock_irqsave(&eda->lock, flags); + list_for_each_entry_safe(itr, next, &eda->cache, list_node) { + list_del(&itr->list_node); + kfree(itr); + } + spin_unlock_irqrestore(&eda->lock, flags); +} + +/* + * Add an address mapping + * + * @returns 0 if ok, < 0 errno code on error + * + * An address mapping is initially created when the neighbor device is seen + * for the first time (it is "onair"). At this time the neighbor is not + * connected or associated with a WSS so we only populate the Ethernet and + * Device address fields. + * + */ +int wlp_eda_create_node(struct wlp_eda *eda, + const unsigned char eth_addr[ETH_ALEN], + const struct uwb_dev_addr *dev_addr) +{ + int result = 0; + struct wlp_eda_node *itr; + unsigned long flags; + + BUG_ON(dev_addr == NULL || eth_addr == NULL); + spin_lock_irqsave(&eda->lock, flags); + list_for_each_entry(itr, &eda->cache, list_node) { + if (!memcmp(&itr->dev_addr, dev_addr, sizeof(itr->dev_addr))) { + printk(KERN_ERR "EDA cache already contains entry " + "for neighbor %02x:%02x\n", + dev_addr->data[1], dev_addr->data[0]); + result = -EEXIST; + goto out_unlock; + } + } + itr = kzalloc(sizeof(*itr), GFP_ATOMIC); + if (itr != NULL) { + memcpy(itr->eth_addr, eth_addr, sizeof(itr->eth_addr)); + itr->dev_addr = *dev_addr; + list_add(&itr->list_node, &eda->cache); + } else + result = -ENOMEM; +out_unlock: + spin_unlock_irqrestore(&eda->lock, flags); + return result; +} + +/* + * Remove entry from EDA cache + * + * This is done when the device goes off air. + */ +void wlp_eda_rm_node(struct wlp_eda *eda, const struct uwb_dev_addr *dev_addr) +{ + struct wlp_eda_node *itr, *next; + unsigned long flags; + + spin_lock_irqsave(&eda->lock, flags); + list_for_each_entry_safe(itr, next, &eda->cache, list_node) { + if (!memcmp(&itr->dev_addr, dev_addr, sizeof(itr->dev_addr))) { + list_del(&itr->list_node); + kfree(itr); + break; + } + } + spin_unlock_irqrestore(&eda->lock, flags); +} + +/* + * Update an address mapping + * + * @returns 0 if ok, < 0 errno code on error + */ +int wlp_eda_update_node(struct wlp_eda *eda, + const struct uwb_dev_addr *dev_addr, + struct wlp_wss *wss, + const unsigned char virt_addr[ETH_ALEN], + const u8 tag, const enum wlp_wss_connect state) +{ + int result = -ENOENT; + struct wlp_eda_node *itr; + unsigned long flags; + + spin_lock_irqsave(&eda->lock, flags); + list_for_each_entry(itr, &eda->cache, list_node) { + if (!memcmp(&itr->dev_addr, dev_addr, sizeof(itr->dev_addr))) { + /* Found it, update it */ + itr->wss = wss; + memcpy(itr->virt_addr, virt_addr, + sizeof(itr->virt_addr)); + itr->tag = tag; + itr->state = state; + result = 0; + goto out_unlock; + } + } + /* Not found */ +out_unlock: + spin_unlock_irqrestore(&eda->lock, flags); + return result; +} + +/* + * Update only state field of an address mapping + * + * @returns 0 if ok, < 0 errno code on error + */ +int wlp_eda_update_node_state(struct wlp_eda *eda, + const struct uwb_dev_addr *dev_addr, + const enum wlp_wss_connect state) +{ + int result = -ENOENT; + struct wlp_eda_node *itr; + unsigned long flags; + + spin_lock_irqsave(&eda->lock, flags); + list_for_each_entry(itr, &eda->cache, list_node) { + if (!memcmp(&itr->dev_addr, dev_addr, sizeof(itr->dev_addr))) { + /* Found it, update it */ + itr->state = state; + result = 0; + goto out_unlock; + } + } + /* Not found */ +out_unlock: + spin_unlock_irqrestore(&eda->lock, flags); + return result; +} + +/* + * Return contents of EDA cache entry + * + * @dev_addr: index to EDA cache + * @eda_entry: pointer to where contents of EDA cache will be copied + */ +int wlp_copy_eda_node(struct wlp_eda *eda, struct uwb_dev_addr *dev_addr, + struct wlp_eda_node *eda_entry) +{ + int result = -ENOENT; + struct wlp_eda_node *itr; + unsigned long flags; + + spin_lock_irqsave(&eda->lock, flags); + list_for_each_entry(itr, &eda->cache, list_node) { + if (!memcmp(&itr->dev_addr, dev_addr, sizeof(itr->dev_addr))) { + *eda_entry = *itr; + result = 0; + goto out_unlock; + } + } + /* Not found */ +out_unlock: + spin_unlock_irqrestore(&eda->lock, flags); + return result; +} + +/* + * Execute function for every element in the cache + * + * @function: function to execute on element of cache (must be atomic) + * @priv: private data of function + * @returns: result of first function that failed, or last function + * executed if no function failed. + * + * Stop executing when function returns error for any element in cache. + * + * IMPORTANT: We are using a spinlock here: the function executed on each + * element has to be atomic. + */ +int wlp_eda_for_each(struct wlp_eda *eda, wlp_eda_for_each_f function, + void *priv) +{ + int result = 0; + struct wlp *wlp = container_of(eda, struct wlp, eda); + struct wlp_eda_node *entry; + unsigned long flags; + + spin_lock_irqsave(&eda->lock, flags); + list_for_each_entry(entry, &eda->cache, list_node) { + result = (*function)(wlp, entry, priv); + if (result < 0) + break; + } + spin_unlock_irqrestore(&eda->lock, flags); + return result; +} + +/* + * Execute function for single element in the cache (return dev addr) + * + * @virt_addr: index into EDA cache used to determine which element to + * execute the function on + * @dev_addr: device address of element in cache will be returned using + * @dev_addr + * @function: function to execute on element of cache (must be atomic) + * @priv: private data of function + * @returns: result of function + * + * IMPORTANT: We are using a spinlock here: the function executed on the + * element has to be atomic. + */ +int wlp_eda_for_virtual(struct wlp_eda *eda, + const unsigned char virt_addr[ETH_ALEN], + struct uwb_dev_addr *dev_addr, + wlp_eda_for_each_f function, + void *priv) +{ + int result = 0; + struct wlp *wlp = container_of(eda, struct wlp, eda); + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_eda_node *itr; + unsigned long flags; + int found = 0; + + spin_lock_irqsave(&eda->lock, flags); + list_for_each_entry(itr, &eda->cache, list_node) { + if (!memcmp(itr->virt_addr, virt_addr, + sizeof(itr->virt_addr))) { + d_printf(6, dev, "EDA: looking for " + "%02x:%02x:%02x:%02x:%02x:%02x hit %02x:%02x " + "wss %p tag 0x%02x state %u\n", + virt_addr[0], virt_addr[1], + virt_addr[2], virt_addr[3], + virt_addr[4], virt_addr[5], + itr->dev_addr.data[1], + itr->dev_addr.data[0], itr->wss, + itr->tag, itr->state); + result = (*function)(wlp, itr, priv); + *dev_addr = itr->dev_addr; + found = 1; + break; + } else + d_printf(6, dev, "EDA: looking for " + "%02x:%02x:%02x:%02x:%02x:%02x " + "against " + "%02x:%02x:%02x:%02x:%02x:%02x miss\n", + virt_addr[0], virt_addr[1], + virt_addr[2], virt_addr[3], + virt_addr[4], virt_addr[5], + itr->virt_addr[0], itr->virt_addr[1], + itr->virt_addr[2], itr->virt_addr[3], + itr->virt_addr[4], itr->virt_addr[5]); + } + if (!found) { + if (printk_ratelimit()) + dev_err(dev, "EDA: Eth addr %02x:%02x:%02x" + ":%02x:%02x:%02x not found.\n", + virt_addr[0], virt_addr[1], + virt_addr[2], virt_addr[3], + virt_addr[4], virt_addr[5]); + result = -ENODEV; + } + spin_unlock_irqrestore(&eda->lock, flags); + return result; +} + +static const char *__wlp_wss_connect_state[] = { "WLP_WSS_UNCONNECTED", + "WLP_WSS_CONNECTED", + "WLP_WSS_CONNECT_FAILED", +}; + +static const char *wlp_wss_connect_state_str(unsigned id) +{ + if (id >= ARRAY_SIZE(__wlp_wss_connect_state)) + return "unknown WSS connection state"; + return __wlp_wss_connect_state[id]; +} + +/* + * View EDA cache from user space + * + * A debugging feature to give user visibility into the EDA cache. Also + * used to display members of WSS to user (called from wlp_wss_members_show()) + */ +ssize_t wlp_eda_show(struct wlp *wlp, char *buf) +{ + ssize_t result = 0; + struct wlp_eda_node *entry; + unsigned long flags; + struct wlp_eda *eda = &wlp->eda; + spin_lock_irqsave(&eda->lock, flags); + result = scnprintf(buf, PAGE_SIZE, "#eth_addr dev_addr wss_ptr " + "tag state virt_addr\n"); + list_for_each_entry(entry, &eda->cache, list_node) { + result += scnprintf(buf + result, PAGE_SIZE - result, + "%02x:%02x:%02x:%02x:%02x:%02x %02x:%02x " + "%p 0x%02x %s " + "%02x:%02x:%02x:%02x:%02x:%02x\n", + entry->eth_addr[0], entry->eth_addr[1], + entry->eth_addr[2], entry->eth_addr[3], + entry->eth_addr[4], entry->eth_addr[5], + entry->dev_addr.data[1], + entry->dev_addr.data[0], entry->wss, + entry->tag, + wlp_wss_connect_state_str(entry->state), + entry->virt_addr[0], entry->virt_addr[1], + entry->virt_addr[2], entry->virt_addr[3], + entry->virt_addr[4], entry->virt_addr[5]); + if (result >= PAGE_SIZE) + break; + } + spin_unlock_irqrestore(&eda->lock, flags); + return result; +} +EXPORT_SYMBOL_GPL(wlp_eda_show); + +/* + * Add new EDA cache entry based on user input in sysfs + * + * Should only be used for debugging. + * + * The WSS is assumed to be the only WSS supported. This needs to be + * redesigned when we support more than one WSS. + */ +ssize_t wlp_eda_store(struct wlp *wlp, const char *buf, size_t size) +{ + ssize_t result; + struct wlp_eda *eda = &wlp->eda; + u8 eth_addr[6]; + struct uwb_dev_addr dev_addr; + u8 tag; + unsigned state; + + result = sscanf(buf, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx " + "%02hhx:%02hhx %02hhx %u\n", + ð_addr[0], ð_addr[1], + ð_addr[2], ð_addr[3], + ð_addr[4], ð_addr[5], + &dev_addr.data[1], &dev_addr.data[0], &tag, &state); + switch (result) { + case 6: /* no dev addr specified -- remove entry NOT IMPLEMENTED */ + /*result = wlp_eda_rm(eda, eth_addr, &dev_addr);*/ + result = -ENOSYS; + break; + case 10: + state = state >= 1 ? 1 : 0; + result = wlp_eda_create_node(eda, eth_addr, &dev_addr); + if (result < 0 && result != -EEXIST) + goto error; + /* Set virtual addr to be same as MAC */ + result = wlp_eda_update_node(eda, &dev_addr, &wlp->wss, + eth_addr, tag, state); + if (result < 0) + goto error; + break; + default: /* bad format */ + result = -EINVAL; + } +error: + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(wlp_eda_store); diff --git a/drivers/uwb/wlp/messages.c b/drivers/uwb/wlp/messages.c new file mode 100644 index 000000000000..a64cb8241713 --- /dev/null +++ b/drivers/uwb/wlp/messages.c @@ -0,0 +1,1946 @@ +/* + * WiMedia Logical Link Control Protocol (WLP) + * Message construction and parsing + * + * Copyright (C) 2007 Intel Corporation + * Reinette Chatre <reinette.chatre@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ + +#include <linux/wlp.h> +#define D_LOCAL 6 +#include <linux/uwb/debug.h> +#include "wlp-internal.h" + +static +const char *__wlp_assoc_frame[] = { + [WLP_ASSOC_D1] = "WLP_ASSOC_D1", + [WLP_ASSOC_D2] = "WLP_ASSOC_D2", + [WLP_ASSOC_M1] = "WLP_ASSOC_M1", + [WLP_ASSOC_M2] = "WLP_ASSOC_M2", + [WLP_ASSOC_M3] = "WLP_ASSOC_M3", + [WLP_ASSOC_M4] = "WLP_ASSOC_M4", + [WLP_ASSOC_M5] = "WLP_ASSOC_M5", + [WLP_ASSOC_M6] = "WLP_ASSOC_M6", + [WLP_ASSOC_M7] = "WLP_ASSOC_M7", + [WLP_ASSOC_M8] = "WLP_ASSOC_M8", + [WLP_ASSOC_F0] = "WLP_ASSOC_F0", + [WLP_ASSOC_E1] = "WLP_ASSOC_E1", + [WLP_ASSOC_E2] = "WLP_ASSOC_E2", + [WLP_ASSOC_C1] = "WLP_ASSOC_C1", + [WLP_ASSOC_C2] = "WLP_ASSOC_C2", + [WLP_ASSOC_C3] = "WLP_ASSOC_C3", + [WLP_ASSOC_C4] = "WLP_ASSOC_C4", +}; + +static const char *wlp_assoc_frame_str(unsigned id) +{ + if (id >= ARRAY_SIZE(__wlp_assoc_frame)) + return "unknown association frame"; + return __wlp_assoc_frame[id]; +} + +static const char *__wlp_assc_error[] = { + "none", + "Authenticator Failure", + "Rogue activity suspected", + "Device busy", + "Setup Locked", + "Registrar not ready", + "Invalid WSS selection", + "Message timeout", + "Enrollment session timeout", + "Device password invalid", + "Unsupported version", + "Internal error", + "Undefined error", + "Numeric comparison failure", + "Waiting for user input", +}; + +static const char *wlp_assc_error_str(unsigned id) +{ + if (id >= ARRAY_SIZE(__wlp_assc_error)) + return "unknown WLP association error"; + return __wlp_assc_error[id]; +} + +static inline void wlp_set_attr_hdr(struct wlp_attr_hdr *hdr, unsigned type, + size_t len) +{ + hdr->type = cpu_to_le16(type); + hdr->length = cpu_to_le16(len); +} + +/* + * Populate fields of a constant sized attribute + * + * @returns: total size of attribute including size of new value + * + * We have two instances of this function (wlp_pset and wlp_set): one takes + * the value as a parameter, the other takes a pointer to the value as + * parameter. They thus only differ in how the value is assigned to the + * attribute. + * + * We use sizeof(*attr) - sizeof(struct wlp_attr_hdr) instead of + * sizeof(type) to be able to use this same code for the structures that + * contain 8bit enum values and be able to deal with pointer types. + */ +#define wlp_set(type, type_code, name) \ +static size_t wlp_set_##name(struct wlp_attr_##name *attr, type value) \ +{ \ + d_fnstart(6, NULL, "(attribute %p)\n", attr); \ + wlp_set_attr_hdr(&attr->hdr, type_code, \ + sizeof(*attr) - sizeof(struct wlp_attr_hdr)); \ + attr->name = value; \ + d_dump(6, NULL, attr, sizeof(*attr)); \ + d_fnend(6, NULL, "(attribute %p)\n", attr); \ + return sizeof(*attr); \ +} + +#define wlp_pset(type, type_code, name) \ +static size_t wlp_set_##name(struct wlp_attr_##name *attr, type value) \ +{ \ + d_fnstart(6, NULL, "(attribute %p)\n", attr); \ + wlp_set_attr_hdr(&attr->hdr, type_code, \ + sizeof(*attr) - sizeof(struct wlp_attr_hdr)); \ + attr->name = *value; \ + d_dump(6, NULL, attr, sizeof(*attr)); \ + d_fnend(6, NULL, "(attribute %p)\n", attr); \ + return sizeof(*attr); \ +} + +/** + * Populate fields of a variable attribute + * + * @returns: total size of attribute including size of new value + * + * Provided with a pointer to the memory area reserved for the + * attribute structure, the field is populated with the value. The + * reserved memory has to contain enough space for the value. + */ +#define wlp_vset(type, type_code, name) \ +static size_t wlp_set_##name(struct wlp_attr_##name *attr, type value, \ + size_t len) \ +{ \ + d_fnstart(6, NULL, "(attribute %p)\n", attr); \ + wlp_set_attr_hdr(&attr->hdr, type_code, len); \ + memcpy(attr->name, value, len); \ + d_dump(6, NULL, attr, sizeof(*attr) + len); \ + d_fnend(6, NULL, "(attribute %p)\n", attr); \ + return sizeof(*attr) + len; \ +} + +wlp_vset(char *, WLP_ATTR_DEV_NAME, dev_name) +wlp_vset(char *, WLP_ATTR_MANUF, manufacturer) +wlp_set(enum wlp_assoc_type, WLP_ATTR_MSG_TYPE, msg_type) +wlp_vset(char *, WLP_ATTR_MODEL_NAME, model_name) +wlp_vset(char *, WLP_ATTR_MODEL_NR, model_nr) +wlp_vset(char *, WLP_ATTR_SERIAL, serial) +wlp_vset(char *, WLP_ATTR_WSS_NAME, wss_name) +wlp_pset(struct wlp_uuid *, WLP_ATTR_UUID_E, uuid_e) +wlp_pset(struct wlp_uuid *, WLP_ATTR_UUID_R, uuid_r) +wlp_pset(struct wlp_uuid *, WLP_ATTR_WSSID, wssid) +wlp_pset(struct wlp_dev_type *, WLP_ATTR_PRI_DEV_TYPE, prim_dev_type) +/*wlp_pset(struct wlp_dev_type *, WLP_ATTR_SEC_DEV_TYPE, sec_dev_type)*/ +wlp_set(u8, WLP_ATTR_WLP_VER, version) +wlp_set(enum wlp_assc_error, WLP_ATTR_WLP_ASSC_ERR, wlp_assc_err) +wlp_set(enum wlp_wss_sel_mthd, WLP_ATTR_WSS_SEL_MTHD, wss_sel_mthd) +wlp_set(u8, WLP_ATTR_ACC_ENRL, accept_enrl) +wlp_set(u8, WLP_ATTR_WSS_SEC_STAT, wss_sec_status) +wlp_pset(struct uwb_mac_addr *, WLP_ATTR_WSS_BCAST, wss_bcast) +wlp_pset(struct wlp_nonce *, WLP_ATTR_ENRL_NONCE, enonce) +wlp_pset(struct wlp_nonce *, WLP_ATTR_REG_NONCE, rnonce) +wlp_set(u8, WLP_ATTR_WSS_TAG, wss_tag) +wlp_pset(struct uwb_mac_addr *, WLP_ATTR_WSS_VIRT, wss_virt) + +/** + * Fill in the WSS information attributes + * + * We currently only support one WSS, and this is assumed in this function + * that can populate only one WSS information attribute. + */ +static size_t wlp_set_wss_info(struct wlp_attr_wss_info *attr, + struct wlp_wss *wss) +{ + size_t datalen; + void *ptr = attr->wss_info; + size_t used = sizeof(*attr); + d_fnstart(6, NULL, "(attribute %p)\n", attr); + datalen = sizeof(struct wlp_wss_info) + strlen(wss->name); + wlp_set_attr_hdr(&attr->hdr, WLP_ATTR_WSS_INFO, datalen); + used = wlp_set_wssid(ptr, &wss->wssid); + used += wlp_set_wss_name(ptr + used, wss->name, strlen(wss->name)); + used += wlp_set_accept_enrl(ptr + used, wss->accept_enroll); + used += wlp_set_wss_sec_status(ptr + used, wss->secure_status); + used += wlp_set_wss_bcast(ptr + used, &wss->bcast); + d_dump(6, NULL, attr, sizeof(*attr) + datalen); + d_fnend(6, NULL, "(attribute %p, used %d)\n", + attr, (int)(sizeof(*attr) + used)); + return sizeof(*attr) + used; +} + +/** + * Verify attribute header + * + * @hdr: Pointer to attribute header that will be verified. + * @type: Expected attribute type. + * @len: Expected length of attribute value (excluding header). + * + * Most attribute values have a known length even when they do have a + * length field. This knowledge can be used via this function to verify + * that the length field matches the expected value. + */ +static int wlp_check_attr_hdr(struct wlp *wlp, struct wlp_attr_hdr *hdr, + enum wlp_attr_type type, unsigned len) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + + if (le16_to_cpu(hdr->type) != type) { + dev_err(dev, "WLP: unexpected header type. Expected " + "%u, got %u.\n", type, le16_to_cpu(hdr->type)); + return -EINVAL; + } + if (le16_to_cpu(hdr->length) != len) { + dev_err(dev, "WLP: unexpected length in header. Expected " + "%u, got %u.\n", len, le16_to_cpu(hdr->length)); + return -EINVAL; + } + return 0; +} + +/** + * Check if header of WSS information attribute valid + * + * @returns: length of WSS attributes (value of length attribute field) if + * valid WSS information attribute found + * -ENODATA if no WSS information attribute found + * -EIO other error occured + * + * The WSS information attribute is optional. The function will be provided + * with a pointer to data that could _potentially_ be a WSS information + * attribute. If a valid WSS information attribute is found it will return + * 0, if no WSS information attribute is found it will return -ENODATA, and + * another error will be returned if it is a WSS information attribute, but + * some parsing failure occured. + */ +static int wlp_check_wss_info_attr_hdr(struct wlp *wlp, + struct wlp_attr_hdr *hdr, size_t buflen) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + size_t len; + int result = 0; + + if (buflen < sizeof(*hdr)) { + dev_err(dev, "WLP: Not enough space in buffer to parse" + " WSS information attribute header.\n"); + result = -EIO; + goto out; + } + if (le16_to_cpu(hdr->type) != WLP_ATTR_WSS_INFO) { + /* WSS information is optional */ + result = -ENODATA; + goto out; + } + len = le16_to_cpu(hdr->length); + if (buflen < sizeof(*hdr) + len) { + dev_err(dev, "WLP: Not enough space in buffer to parse " + "variable data. Got %d, expected %d.\n", + (int)buflen, (int)(sizeof(*hdr) + len)); + result = -EIO; + goto out; + } + result = len; +out: + return result; +} + + +/** + * Get value of attribute from fixed size attribute field. + * + * @attr: Pointer to attribute field. + * @value: Pointer to variable in which attribute value will be placed. + * @buflen: Size of buffer in which attribute field (including header) + * can be found. + * @returns: Amount of given buffer consumed by parsing for this attribute. + * + * The size and type of the value is known by the type of the attribute. + */ +#define wlp_get(type, type_code, name) \ +ssize_t wlp_get_##name(struct wlp *wlp, struct wlp_attr_##name *attr, \ + type *value, ssize_t buflen) \ +{ \ + struct device *dev = &wlp->rc->uwb_dev.dev; \ + if (buflen < 0) \ + return -EINVAL; \ + if (buflen < sizeof(*attr)) { \ + dev_err(dev, "WLP: Not enough space in buffer to parse" \ + " attribute field. Need %d, received %zu\n", \ + (int)sizeof(*attr), buflen); \ + return -EIO; \ + } \ + if (wlp_check_attr_hdr(wlp, &attr->hdr, type_code, \ + sizeof(attr->name)) < 0) { \ + dev_err(dev, "WLP: Header verification failed. \n"); \ + return -EINVAL; \ + } \ + *value = attr->name; \ + return sizeof(*attr); \ +} + +#define wlp_get_sparse(type, type_code, name) \ + static wlp_get(type, type_code, name) + +/** + * Get value of attribute from variable sized attribute field. + * + * @max: The maximum size of this attribute. This value is dictated by + * the maximum value from the WLP specification. + * + * @attr: Pointer to attribute field. + * @value: Pointer to variable that will contain the value. The memory + * must already have been allocated for this value. + * @buflen: Size of buffer in which attribute field (including header) + * can be found. + * @returns: Amount of given bufferconsumed by parsing for this attribute. + */ +#define wlp_vget(type_val, type_code, name, max) \ +static ssize_t wlp_get_##name(struct wlp *wlp, \ + struct wlp_attr_##name *attr, \ + type_val *value, ssize_t buflen) \ +{ \ + struct device *dev = &wlp->rc->uwb_dev.dev; \ + size_t len; \ + if (buflen < 0) \ + return -EINVAL; \ + if (buflen < sizeof(*attr)) { \ + dev_err(dev, "WLP: Not enough space in buffer to parse" \ + " header.\n"); \ + return -EIO; \ + } \ + if (le16_to_cpu(attr->hdr.type) != type_code) { \ + dev_err(dev, "WLP: Unexpected attribute type. Got %u, " \ + "expected %u.\n", le16_to_cpu(attr->hdr.type), \ + type_code); \ + return -EINVAL; \ + } \ + len = le16_to_cpu(attr->hdr.length); \ + if (len > max) { \ + dev_err(dev, "WLP: Attribute larger than maximum " \ + "allowed. Received %zu, max is %d.\n", len, \ + (int)max); \ + return -EFBIG; \ + } \ + if (buflen < sizeof(*attr) + len) { \ + dev_err(dev, "WLP: Not enough space in buffer to parse "\ + "variable data.\n"); \ + return -EIO; \ + } \ + memcpy(value, (void *) attr + sizeof(*attr), len); \ + return sizeof(*attr) + len; \ +} + +wlp_get(u8, WLP_ATTR_WLP_VER, version) +wlp_get_sparse(enum wlp_wss_sel_mthd, WLP_ATTR_WSS_SEL_MTHD, wss_sel_mthd) +wlp_get_sparse(struct wlp_dev_type, WLP_ATTR_PRI_DEV_TYPE, prim_dev_type) +wlp_get_sparse(enum wlp_assc_error, WLP_ATTR_WLP_ASSC_ERR, wlp_assc_err) +wlp_get_sparse(struct wlp_uuid, WLP_ATTR_UUID_E, uuid_e) +wlp_get_sparse(struct wlp_uuid, WLP_ATTR_UUID_R, uuid_r) +wlp_get(struct wlp_uuid, WLP_ATTR_WSSID, wssid) +wlp_get_sparse(u8, WLP_ATTR_ACC_ENRL, accept_enrl) +wlp_get_sparse(u8, WLP_ATTR_WSS_SEC_STAT, wss_sec_status) +wlp_get_sparse(struct uwb_mac_addr, WLP_ATTR_WSS_BCAST, wss_bcast) +wlp_get_sparse(u8, WLP_ATTR_WSS_TAG, wss_tag) +wlp_get_sparse(struct uwb_mac_addr, WLP_ATTR_WSS_VIRT, wss_virt) +wlp_get_sparse(struct wlp_nonce, WLP_ATTR_ENRL_NONCE, enonce) +wlp_get_sparse(struct wlp_nonce, WLP_ATTR_REG_NONCE, rnonce) + +/* The buffers for the device info attributes can be found in the + * wlp_device_info struct. These buffers contain one byte more than the + * max allowed by the spec - this is done to be able to add the + * terminating \0 for user display. This terminating byte is not required + * in the actual attribute field (because it has a length field) so the + * maximum allowed for this value is one less than its size in the + * structure. + */ +wlp_vget(char, WLP_ATTR_WSS_NAME, wss_name, + FIELD_SIZEOF(struct wlp_wss, name) - 1) +wlp_vget(char, WLP_ATTR_DEV_NAME, dev_name, + FIELD_SIZEOF(struct wlp_device_info, name) - 1) +wlp_vget(char, WLP_ATTR_MANUF, manufacturer, + FIELD_SIZEOF(struct wlp_device_info, manufacturer) - 1) +wlp_vget(char, WLP_ATTR_MODEL_NAME, model_name, + FIELD_SIZEOF(struct wlp_device_info, model_name) - 1) +wlp_vget(char, WLP_ATTR_MODEL_NR, model_nr, + FIELD_SIZEOF(struct wlp_device_info, model_nr) - 1) +wlp_vget(char, WLP_ATTR_SERIAL, serial, + FIELD_SIZEOF(struct wlp_device_info, serial) - 1) + +/** + * Retrieve WSS Name, Accept enroll, Secure status, Broadcast from WSS info + * + * @attr: pointer to WSS name attribute in WSS information attribute field + * @info: structure that will be populated with data from WSS information + * field (WSS name, Accept enroll, secure status, broadcast address) + * @buflen: size of buffer + * + * Although the WSSID attribute forms part of the WSS info attribute it is + * retrieved separately and stored in a different location. + */ +static ssize_t wlp_get_wss_info_attrs(struct wlp *wlp, + struct wlp_attr_hdr *attr, + struct wlp_wss_tmp_info *info, + ssize_t buflen) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + void *ptr = attr; + size_t used = 0; + ssize_t result = -EINVAL; + + d_printf(6, dev, "WLP: WSS info: Retrieving WSS name\n"); + result = wlp_get_wss_name(wlp, ptr, info->name, buflen); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSS name from " + "WSS info in D2 message.\n"); + goto error_parse; + } + used += result; + d_printf(6, dev, "WLP: WSS info: Retrieving accept enroll\n"); + result = wlp_get_accept_enrl(wlp, ptr + used, &info->accept_enroll, + buflen - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain accepting " + "enrollment from WSS info in D2 message.\n"); + goto error_parse; + } + if (info->accept_enroll != 0 && info->accept_enroll != 1) { + dev_err(dev, "WLP: invalid value for accepting " + "enrollment in D2 message.\n"); + result = -EINVAL; + goto error_parse; + } + used += result; + d_printf(6, dev, "WLP: WSS info: Retrieving secure status\n"); + result = wlp_get_wss_sec_status(wlp, ptr + used, &info->sec_status, + buflen - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain secure " + "status from WSS info in D2 message.\n"); + goto error_parse; + } + if (info->sec_status != 0 && info->sec_status != 1) { + dev_err(dev, "WLP: invalid value for secure " + "status in D2 message.\n"); + result = -EINVAL; + goto error_parse; + } + used += result; + d_printf(6, dev, "WLP: WSS info: Retrieving broadcast\n"); + result = wlp_get_wss_bcast(wlp, ptr + used, &info->bcast, + buflen - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain broadcast " + "address from WSS info in D2 message.\n"); + goto error_parse; + } + used += result; + result = used; +error_parse: + return result; +} + +/** + * Create a new WSSID entry for the neighbor, allocate temporary storage + * + * Each neighbor can have many WSS active. We maintain a list of WSSIDs + * advertised by neighbor. During discovery we also cache information about + * these WSS in temporary storage. + * + * The temporary storage will be removed after it has been used (eg. + * displayed to user), the wssid element will be removed from the list when + * the neighbor is rediscovered or when it disappears. + */ +static struct wlp_wssid_e *wlp_create_wssid_e(struct wlp *wlp, + struct wlp_neighbor_e *neighbor) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_wssid_e *wssid_e; + + wssid_e = kzalloc(sizeof(*wssid_e), GFP_KERNEL); + if (wssid_e == NULL) { + dev_err(dev, "WLP: unable to allocate memory " + "for WSS information.\n"); + goto error_alloc; + } + wssid_e->info = kzalloc(sizeof(struct wlp_wss_tmp_info), GFP_KERNEL); + if (wssid_e->info == NULL) { + dev_err(dev, "WLP: unable to allocate memory " + "for temporary WSS information.\n"); + kfree(wssid_e); + wssid_e = NULL; + goto error_alloc; + } + list_add(&wssid_e->node, &neighbor->wssid); +error_alloc: + return wssid_e; +} + +/** + * Parse WSS information attribute + * + * @attr: pointer to WSS information attribute header + * @buflen: size of buffer in which WSS information attribute appears + * @wssid: will place wssid from WSS info attribute in this location + * @wss_info: will place other information from WSS information attribute + * in this location + * + * memory for @wssid and @wss_info must be allocated when calling this + */ +static ssize_t wlp_get_wss_info(struct wlp *wlp, struct wlp_attr_wss_info *attr, + size_t buflen, struct wlp_uuid *wssid, + struct wlp_wss_tmp_info *wss_info) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + ssize_t result; + size_t len; + size_t used = 0; + void *ptr; + + result = wlp_check_wss_info_attr_hdr(wlp, (struct wlp_attr_hdr *)attr, + buflen); + if (result < 0) + goto out; + len = result; + used = sizeof(*attr); + ptr = attr; + d_printf(6, dev, "WLP: WSS info: Retrieving WSSID\n"); + result = wlp_get_wssid(wlp, ptr + used, wssid, buflen - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSSID from WSS info.\n"); + goto out; + } + used += result; + result = wlp_get_wss_info_attrs(wlp, ptr + used, wss_info, + buflen - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSS information " + "from WSS information attributes. \n"); + goto out; + } + used += result; + if (len + sizeof(*attr) != used) { + dev_err(dev, "WLP: Amount of data parsed does not " + "match length field. Parsed %zu, length " + "field %zu. \n", used, len); + result = -EINVAL; + goto out; + } + result = used; + d_printf(6, dev, "WLP: Successfully parsed WLP information " + "attribute. used %zu bytes\n", used); +out: + return result; +} + +/** + * Retrieve WSS info from association frame + * + * @attr: pointer to WSS information attribute + * @neighbor: ptr to neighbor being discovered, NULL if enrollment in + * progress + * @wss: ptr to WSS being enrolled in, NULL if discovery in progress + * @buflen: size of buffer in which WSS information appears + * + * The WSS information attribute appears in the D2 association message. + * This message is used in two ways: to discover all neighbors or to enroll + * into a WSS activated by a neighbor. During discovery we only want to + * store the WSS info in a cache, to be deleted right after it has been + * used (eg. displayed to the user). During enrollment we store the WSS + * information for the lifetime of enrollment. + * + * During discovery we are interested in all WSS information, during + * enrollment we are only interested in the WSS being enrolled in. Even so, + * when in enrollment we keep parsing the message after finding the WSS of + * interest, this simplifies the calling routine in that it can be sure + * that all WSS information attributes have been parsed out of the message. + * + * Association frame is process with nbmutex held. The list access is safe. + */ +static ssize_t wlp_get_all_wss_info(struct wlp *wlp, + struct wlp_attr_wss_info *attr, + struct wlp_neighbor_e *neighbor, + struct wlp_wss *wss, ssize_t buflen) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + size_t used = 0; + ssize_t result = -EINVAL; + struct wlp_attr_wss_info *cur; + struct wlp_uuid wssid; + struct wlp_wss_tmp_info wss_info; + unsigned enroll; /* 0 - discovery to cache, 1 - enrollment */ + struct wlp_wssid_e *wssid_e; + char buf[WLP_WSS_UUID_STRSIZE]; + + d_fnstart(6, dev, "wlp %p, attr %p, neighbor %p, wss %p, buflen %d \n", + wlp, attr, neighbor, wss, (int)buflen); + if (buflen < 0) + goto out; + + if (neighbor != NULL && wss == NULL) + enroll = 0; /* discovery */ + else if (wss != NULL && neighbor == NULL) + enroll = 1; /* enrollment */ + else + goto out; + + cur = attr; + while (buflen - used > 0) { + memset(&wss_info, 0, sizeof(wss_info)); + cur = (void *)cur + used; + result = wlp_get_wss_info(wlp, cur, buflen - used, &wssid, + &wss_info); + if (result == -ENODATA) { + result = used; + goto out; + } else if (result < 0) { + dev_err(dev, "WLP: Unable to parse WSS information " + "from WSS information attribute. \n"); + result = -EINVAL; + goto error_parse; + } + if (enroll && !memcmp(&wssid, &wss->wssid, sizeof(wssid))) { + if (wss_info.accept_enroll != 1) { + dev_err(dev, "WLP: Requested WSS does " + "not accept enrollment.\n"); + result = -EINVAL; + goto out; + } + memcpy(wss->name, wss_info.name, sizeof(wss->name)); + wss->bcast = wss_info.bcast; + wss->secure_status = wss_info.sec_status; + wss->accept_enroll = wss_info.accept_enroll; + wss->state = WLP_WSS_STATE_PART_ENROLLED; + wlp_wss_uuid_print(buf, sizeof(buf), &wssid); + d_printf(2, dev, "WLP: Found WSS %s. Enrolling.\n", + buf); + } else { + wssid_e = wlp_create_wssid_e(wlp, neighbor); + if (wssid_e == NULL) { + dev_err(dev, "WLP: Cannot create new WSSID " + "entry for neighbor %02x:%02x.\n", + neighbor->uwb_dev->dev_addr.data[1], + neighbor->uwb_dev->dev_addr.data[0]); + result = -ENOMEM; + goto out; + } + wssid_e->wssid = wssid; + *wssid_e->info = wss_info; + } + used += result; + } + result = used; +error_parse: + if (result < 0 && !enroll) /* this was a discovery */ + wlp_remove_neighbor_tmp_info(neighbor); +out: + d_fnend(6, dev, "wlp %p, attr %p, neighbor %p, wss %p, buflen %d, " + "result %d \n", wlp, attr, neighbor, wss, (int)buflen, + (int)result); + return result; + +} + +/** + * Parse WSS information attributes into cache for discovery + * + * @attr: the first WSS information attribute in message + * @neighbor: the neighbor whose cache will be populated + * @buflen: size of the input buffer + */ +static ssize_t wlp_get_wss_info_to_cache(struct wlp *wlp, + struct wlp_attr_wss_info *attr, + struct wlp_neighbor_e *neighbor, + ssize_t buflen) +{ + return wlp_get_all_wss_info(wlp, attr, neighbor, NULL, buflen); +} + +/** + * Parse WSS information attributes into WSS struct for enrollment + * + * @attr: the first WSS information attribute in message + * @wss: the WSS that will be enrolled + * @buflen: size of the input buffer + */ +static ssize_t wlp_get_wss_info_to_enroll(struct wlp *wlp, + struct wlp_attr_wss_info *attr, + struct wlp_wss *wss, ssize_t buflen) +{ + return wlp_get_all_wss_info(wlp, attr, NULL, wss, buflen); +} + +/** + * Construct a D1 association frame + * + * We use the radio control functions to determine the values of the device + * properties. These are of variable length and the total space needed is + * tallied first before we start constructing the message. The radio + * control functions return strings that are terminated with \0. This + * character should not be included in the message (there is a length field + * accompanying it in the attribute). + */ +static int wlp_build_assoc_d1(struct wlp *wlp, struct wlp_wss *wss, + struct sk_buff **skb) +{ + + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = 0; + struct wlp_device_info *info; + size_t used = 0; + struct wlp_frame_assoc *_d1; + struct sk_buff *_skb; + void *d1_itr; + + d_fnstart(6, dev, "wlp %p\n", wlp); + if (wlp->dev_info == NULL) { + result = __wlp_setup_device_info(wlp); + if (result < 0) { + dev_err(dev, "WLP: Unable to setup device " + "information for D1 message.\n"); + goto error; + } + } + info = wlp->dev_info; + d_printf(6, dev, "Local properties:\n" + "Device name (%d bytes): %s\n" + "Model name (%d bytes): %s\n" + "Manufacturer (%d bytes): %s\n" + "Model number (%d bytes): %s\n" + "Serial number (%d bytes): %s\n" + "Primary device type: \n" + " Category: %d \n" + " OUI: %02x:%02x:%02x \n" + " OUI Subdivision: %u \n", + (int)strlen(info->name), info->name, + (int)strlen(info->model_name), info->model_name, + (int)strlen(info->manufacturer), info->manufacturer, + (int)strlen(info->model_nr), info->model_nr, + (int)strlen(info->serial), info->serial, + info->prim_dev_type.category, + info->prim_dev_type.OUI[0], info->prim_dev_type.OUI[1], + info->prim_dev_type.OUI[2], info->prim_dev_type.OUIsubdiv); + _skb = dev_alloc_skb(sizeof(*_d1) + + sizeof(struct wlp_attr_uuid_e) + + sizeof(struct wlp_attr_wss_sel_mthd) + + sizeof(struct wlp_attr_dev_name) + + strlen(info->name) + + sizeof(struct wlp_attr_manufacturer) + + strlen(info->manufacturer) + + sizeof(struct wlp_attr_model_name) + + strlen(info->model_name) + + sizeof(struct wlp_attr_model_nr) + + strlen(info->model_nr) + + sizeof(struct wlp_attr_serial) + + strlen(info->serial) + + sizeof(struct wlp_attr_prim_dev_type) + + sizeof(struct wlp_attr_wlp_assc_err)); + if (_skb == NULL) { + dev_err(dev, "WLP: Cannot allocate memory for association " + "message.\n"); + result = -ENOMEM; + goto error; + } + _d1 = (void *) _skb->data; + d_printf(6, dev, "D1 starts at %p \n", _d1); + _d1->hdr.mux_hdr = cpu_to_le16(WLP_PROTOCOL_ID); + _d1->hdr.type = WLP_FRAME_ASSOCIATION; + _d1->type = WLP_ASSOC_D1; + + wlp_set_version(&_d1->version, WLP_VERSION); + wlp_set_msg_type(&_d1->msg_type, WLP_ASSOC_D1); + d1_itr = _d1->attr; + used = wlp_set_uuid_e(d1_itr, &wlp->uuid); + used += wlp_set_wss_sel_mthd(d1_itr + used, WLP_WSS_REG_SELECT); + used += wlp_set_dev_name(d1_itr + used, info->name, + strlen(info->name)); + used += wlp_set_manufacturer(d1_itr + used, info->manufacturer, + strlen(info->manufacturer)); + used += wlp_set_model_name(d1_itr + used, info->model_name, + strlen(info->model_name)); + used += wlp_set_model_nr(d1_itr + used, info->model_nr, + strlen(info->model_nr)); + used += wlp_set_serial(d1_itr + used, info->serial, + strlen(info->serial)); + used += wlp_set_prim_dev_type(d1_itr + used, &info->prim_dev_type); + used += wlp_set_wlp_assc_err(d1_itr + used, WLP_ASSOC_ERROR_NONE); + skb_put(_skb, sizeof(*_d1) + used); + d_printf(6, dev, "D1 message:\n"); + d_dump(6, dev, _d1, sizeof(*_d1) + + sizeof(struct wlp_attr_uuid_e) + + sizeof(struct wlp_attr_wss_sel_mthd) + + sizeof(struct wlp_attr_dev_name) + + strlen(info->name) + + sizeof(struct wlp_attr_manufacturer) + + strlen(info->manufacturer) + + sizeof(struct wlp_attr_model_name) + + strlen(info->model_name) + + sizeof(struct wlp_attr_model_nr) + + strlen(info->model_nr) + + sizeof(struct wlp_attr_serial) + + strlen(info->serial) + + sizeof(struct wlp_attr_prim_dev_type) + + sizeof(struct wlp_attr_wlp_assc_err)); + *skb = _skb; +error: + d_fnend(6, dev, "wlp %p, result = %d\n", wlp, result); + return result; +} + +/** + * Construct a D2 association frame + * + * We use the radio control functions to determine the values of the device + * properties. These are of variable length and the total space needed is + * tallied first before we start constructing the message. The radio + * control functions return strings that are terminated with \0. This + * character should not be included in the message (there is a length field + * accompanying it in the attribute). + */ +static +int wlp_build_assoc_d2(struct wlp *wlp, struct wlp_wss *wss, + struct sk_buff **skb, struct wlp_uuid *uuid_e) +{ + + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = 0; + struct wlp_device_info *info; + size_t used = 0; + struct wlp_frame_assoc *_d2; + struct sk_buff *_skb; + void *d2_itr; + size_t mem_needed; + + d_fnstart(6, dev, "wlp %p\n", wlp); + if (wlp->dev_info == NULL) { + result = __wlp_setup_device_info(wlp); + if (result < 0) { + dev_err(dev, "WLP: Unable to setup device " + "information for D2 message.\n"); + goto error; + } + } + info = wlp->dev_info; + d_printf(6, dev, "Local properties:\n" + "Device name (%d bytes): %s\n" + "Model name (%d bytes): %s\n" + "Manufacturer (%d bytes): %s\n" + "Model number (%d bytes): %s\n" + "Serial number (%d bytes): %s\n" + "Primary device type: \n" + " Category: %d \n" + " OUI: %02x:%02x:%02x \n" + " OUI Subdivision: %u \n", + (int)strlen(info->name), info->name, + (int)strlen(info->model_name), info->model_name, + (int)strlen(info->manufacturer), info->manufacturer, + (int)strlen(info->model_nr), info->model_nr, + (int)strlen(info->serial), info->serial, + info->prim_dev_type.category, + info->prim_dev_type.OUI[0], info->prim_dev_type.OUI[1], + info->prim_dev_type.OUI[2], info->prim_dev_type.OUIsubdiv); + mem_needed = sizeof(*_d2) + + sizeof(struct wlp_attr_uuid_e) + + sizeof(struct wlp_attr_uuid_r) + + sizeof(struct wlp_attr_dev_name) + + strlen(info->name) + + sizeof(struct wlp_attr_manufacturer) + + strlen(info->manufacturer) + + sizeof(struct wlp_attr_model_name) + + strlen(info->model_name) + + sizeof(struct wlp_attr_model_nr) + + strlen(info->model_nr) + + sizeof(struct wlp_attr_serial) + + strlen(info->serial) + + sizeof(struct wlp_attr_prim_dev_type) + + sizeof(struct wlp_attr_wlp_assc_err); + if (wlp->wss.state >= WLP_WSS_STATE_ACTIVE) + mem_needed += sizeof(struct wlp_attr_wss_info) + + sizeof(struct wlp_wss_info) + + strlen(wlp->wss.name); + _skb = dev_alloc_skb(mem_needed); + if (_skb == NULL) { + dev_err(dev, "WLP: Cannot allocate memory for association " + "message.\n"); + result = -ENOMEM; + goto error; + } + _d2 = (void *) _skb->data; + d_printf(6, dev, "D2 starts at %p \n", _d2); + _d2->hdr.mux_hdr = cpu_to_le16(WLP_PROTOCOL_ID); + _d2->hdr.type = WLP_FRAME_ASSOCIATION; + _d2->type = WLP_ASSOC_D2; + + wlp_set_version(&_d2->version, WLP_VERSION); + wlp_set_msg_type(&_d2->msg_type, WLP_ASSOC_D2); + d2_itr = _d2->attr; + used = wlp_set_uuid_e(d2_itr, uuid_e); + used += wlp_set_uuid_r(d2_itr + used, &wlp->uuid); + if (wlp->wss.state >= WLP_WSS_STATE_ACTIVE) + used += wlp_set_wss_info(d2_itr + used, &wlp->wss); + used += wlp_set_dev_name(d2_itr + used, info->name, + strlen(info->name)); + used += wlp_set_manufacturer(d2_itr + used, info->manufacturer, + strlen(info->manufacturer)); + used += wlp_set_model_name(d2_itr + used, info->model_name, + strlen(info->model_name)); + used += wlp_set_model_nr(d2_itr + used, info->model_nr, + strlen(info->model_nr)); + used += wlp_set_serial(d2_itr + used, info->serial, + strlen(info->serial)); + used += wlp_set_prim_dev_type(d2_itr + used, &info->prim_dev_type); + used += wlp_set_wlp_assc_err(d2_itr + used, WLP_ASSOC_ERROR_NONE); + skb_put(_skb, sizeof(*_d2) + used); + d_printf(6, dev, "D2 message:\n"); + d_dump(6, dev, _d2, mem_needed); + *skb = _skb; +error: + d_fnend(6, dev, "wlp %p, result = %d\n", wlp, result); + return result; +} + +/** + * Allocate memory for and populate fields of F0 association frame + * + * Currently (while focusing on unsecure enrollment) we ignore the + * nonce's that could be placed in the message. Only the error field is + * populated by the value provided by the caller. + */ +static +int wlp_build_assoc_f0(struct wlp *wlp, struct sk_buff **skb, + enum wlp_assc_error error) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = -ENOMEM; + struct { + struct wlp_frame_assoc f0_hdr; + struct wlp_attr_enonce enonce; + struct wlp_attr_rnonce rnonce; + struct wlp_attr_wlp_assc_err assc_err; + } *f0; + struct sk_buff *_skb; + struct wlp_nonce tmp; + + d_fnstart(6, dev, "wlp %p\n", wlp); + _skb = dev_alloc_skb(sizeof(*f0)); + if (_skb == NULL) { + dev_err(dev, "WLP: Unable to allocate memory for F0 " + "association frame. \n"); + goto error_alloc; + } + f0 = (void *) _skb->data; + d_printf(6, dev, "F0 starts at %p \n", f0); + f0->f0_hdr.hdr.mux_hdr = cpu_to_le16(WLP_PROTOCOL_ID); + f0->f0_hdr.hdr.type = WLP_FRAME_ASSOCIATION; + f0->f0_hdr.type = WLP_ASSOC_F0; + wlp_set_version(&f0->f0_hdr.version, WLP_VERSION); + wlp_set_msg_type(&f0->f0_hdr.msg_type, WLP_ASSOC_F0); + memset(&tmp, 0, sizeof(tmp)); + wlp_set_enonce(&f0->enonce, &tmp); + wlp_set_rnonce(&f0->rnonce, &tmp); + wlp_set_wlp_assc_err(&f0->assc_err, error); + skb_put(_skb, sizeof(*f0)); + *skb = _skb; + result = 0; +error_alloc: + d_fnend(6, dev, "wlp %p, result %d \n", wlp, result); + return result; +} + +/** + * Parse F0 frame + * + * We just retrieve the values and print it as an error to the user. + * Calling function already knows an error occured (F0 indicates error), so + * we just parse the content as debug for higher layers. + */ +int wlp_parse_f0(struct wlp *wlp, struct sk_buff *skb) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_frame_assoc *f0 = (void *) skb->data; + void *ptr = skb->data; + size_t len = skb->len; + size_t used; + ssize_t result; + struct wlp_nonce enonce, rnonce; + enum wlp_assc_error assc_err; + char enonce_buf[WLP_WSS_NONCE_STRSIZE]; + char rnonce_buf[WLP_WSS_NONCE_STRSIZE]; + + used = sizeof(*f0); + result = wlp_get_enonce(wlp, ptr + used, &enonce, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain Enrollee nonce " + "attribute from F0 message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_rnonce(wlp, ptr + used, &rnonce, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain Registrar nonce " + "attribute from F0 message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_wlp_assc_err(wlp, ptr + used, &assc_err, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WLP Association error " + "attribute from F0 message.\n"); + goto error_parse; + } + wlp_wss_nonce_print(enonce_buf, sizeof(enonce_buf), &enonce); + wlp_wss_nonce_print(rnonce_buf, sizeof(rnonce_buf), &rnonce); + dev_err(dev, "WLP: Received F0 error frame from neighbor. Enrollee " + "nonce: %s, Registrar nonce: %s, WLP Association error: %s.\n", + enonce_buf, rnonce_buf, wlp_assc_error_str(assc_err)); + result = 0; +error_parse: + return result; +} + +/** + * Retrieve variable device information from association message + * + * The device information parsed is not required in any message. This + * routine will thus not fail if an attribute is not present. + * The attributes are expected in a certain order, even if all are not + * present. The "attribute type" value is used to ensure the attributes + * are parsed in the correct order. + * + * If an error is encountered during parsing the function will return an + * error code, when this happens the given device_info structure may be + * partially filled. + */ +static +int wlp_get_variable_info(struct wlp *wlp, void *data, + struct wlp_device_info *dev_info, ssize_t len) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + size_t used = 0; + struct wlp_attr_hdr *hdr; + ssize_t result = 0; + unsigned last = 0; + + while (len - used > 0) { + if (len - used < sizeof(*hdr)) { + dev_err(dev, "WLP: Partial data in frame, cannot " + "parse. \n"); + goto error_parse; + } + hdr = data + used; + switch (le16_to_cpu(hdr->type)) { + case WLP_ATTR_MANUF: + if (last >= WLP_ATTR_MANUF) { + dev_err(dev, "WLP: Incorrect order of " + "attribute values in D1 msg.\n"); + goto error_parse; + } + result = wlp_get_manufacturer(wlp, data + used, + dev_info->manufacturer, + len - used); + if (result < 0) { + dev_err(dev, "WLP: Unable to obtain " + "Manufacturer attribute from D1 " + "message.\n"); + goto error_parse; + } + last = WLP_ATTR_MANUF; + used += result; + break; + case WLP_ATTR_MODEL_NAME: + if (last >= WLP_ATTR_MODEL_NAME) { + dev_err(dev, "WLP: Incorrect order of " + "attribute values in D1 msg.\n"); + goto error_parse; + } + result = wlp_get_model_name(wlp, data + used, + dev_info->model_name, + len - used); + if (result < 0) { + dev_err(dev, "WLP: Unable to obtain Model " + "name attribute from D1 message.\n"); + goto error_parse; + } + last = WLP_ATTR_MODEL_NAME; + used += result; + break; + case WLP_ATTR_MODEL_NR: + if (last >= WLP_ATTR_MODEL_NR) { + dev_err(dev, "WLP: Incorrect order of " + "attribute values in D1 msg.\n"); + goto error_parse; + } + result = wlp_get_model_nr(wlp, data + used, + dev_info->model_nr, + len - used); + if (result < 0) { + dev_err(dev, "WLP: Unable to obtain Model " + "number attribute from D1 message.\n"); + goto error_parse; + } + last = WLP_ATTR_MODEL_NR; + used += result; + break; + case WLP_ATTR_SERIAL: + if (last >= WLP_ATTR_SERIAL) { + dev_err(dev, "WLP: Incorrect order of " + "attribute values in D1 msg.\n"); + goto error_parse; + } + result = wlp_get_serial(wlp, data + used, + dev_info->serial, len - used); + if (result < 0) { + dev_err(dev, "WLP: Unable to obtain Serial " + "number attribute from D1 message.\n"); + goto error_parse; + } + last = WLP_ATTR_SERIAL; + used += result; + break; + case WLP_ATTR_PRI_DEV_TYPE: + if (last >= WLP_ATTR_PRI_DEV_TYPE) { + dev_err(dev, "WLP: Incorrect order of " + "attribute values in D1 msg.\n"); + goto error_parse; + } + result = wlp_get_prim_dev_type(wlp, data + used, + &dev_info->prim_dev_type, + len - used); + if (result < 0) { + dev_err(dev, "WLP: Unable to obtain Primary " + "device type attribute from D1 " + "message.\n"); + goto error_parse; + } + dev_info->prim_dev_type.category = + le16_to_cpu(dev_info->prim_dev_type.category); + dev_info->prim_dev_type.subID = + le16_to_cpu(dev_info->prim_dev_type.subID); + last = WLP_ATTR_PRI_DEV_TYPE; + used += result; + break; + default: + /* This is not variable device information. */ + goto out; + break; + } + } +out: + return used; +error_parse: + return -EINVAL; +} + +/** + * Parse incoming D1 frame, populate attribute values + * + * Caller provides pointers to memory already allocated for attributes + * expected in the D1 frame. These variables will be populated. + */ +static +int wlp_parse_d1_frame(struct wlp *wlp, struct sk_buff *skb, + struct wlp_uuid *uuid_e, + enum wlp_wss_sel_mthd *sel_mthd, + struct wlp_device_info *dev_info, + enum wlp_assc_error *assc_err) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_frame_assoc *d1 = (void *) skb->data; + void *ptr = skb->data; + size_t len = skb->len; + size_t used; + ssize_t result; + + used = sizeof(*d1); + result = wlp_get_uuid_e(wlp, ptr + used, uuid_e, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain UUID-E attribute from D1 " + "message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_wss_sel_mthd(wlp, ptr + used, sel_mthd, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSS selection method " + "from D1 message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_dev_name(wlp, ptr + used, dev_info->name, + len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain Device Name from D1 " + "message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_variable_info(wlp, ptr + used, dev_info, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain Device Information from " + "D1 message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_wlp_assc_err(wlp, ptr + used, assc_err, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WLP Association Error " + "Information from D1 message.\n"); + goto error_parse; + } + result = 0; +error_parse: + return result; +} +/** + * Handle incoming D1 frame + * + * The frame has already been verified to contain an Association header with + * the correct version number. Parse the incoming frame, construct and send + * a D2 frame in response. + * + * It is not clear what to do with most fields in the incoming D1 frame. We + * retrieve and discard the information here for now. + */ +void wlp_handle_d1_frame(struct work_struct *ws) +{ + struct wlp_assoc_frame_ctx *frame_ctx = container_of(ws, + struct wlp_assoc_frame_ctx, + ws); + struct wlp *wlp = frame_ctx->wlp; + struct wlp_wss *wss = &wlp->wss; + struct sk_buff *skb = frame_ctx->skb; + struct uwb_dev_addr *src = &frame_ctx->src; + int result; + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_uuid uuid_e; + enum wlp_wss_sel_mthd sel_mthd = 0; + struct wlp_device_info dev_info; + enum wlp_assc_error assc_err; + char uuid[WLP_WSS_UUID_STRSIZE]; + struct sk_buff *resp = NULL; + + /* Parse D1 frame */ + d_fnstart(6, dev, "WLP: handle D1 frame. wlp = %p, skb = %p\n", + wlp, skb); + mutex_lock(&wss->mutex); + mutex_lock(&wlp->mutex); /* to access wlp->uuid */ + memset(&dev_info, 0, sizeof(dev_info)); + result = wlp_parse_d1_frame(wlp, skb, &uuid_e, &sel_mthd, &dev_info, + &assc_err); + if (result < 0) { + dev_err(dev, "WLP: Unable to parse incoming D1 frame.\n"); + kfree_skb(skb); + goto out; + } + wlp_wss_uuid_print(uuid, sizeof(uuid), &uuid_e); + d_printf(6, dev, "From D1 frame:\n" + "UUID-E: %s\n" + "Selection method: %d\n" + "Device name (%d bytes): %s\n" + "Model name (%d bytes): %s\n" + "Manufacturer (%d bytes): %s\n" + "Model number (%d bytes): %s\n" + "Serial number (%d bytes): %s\n" + "Primary device type: \n" + " Category: %d \n" + " OUI: %02x:%02x:%02x \n" + " OUI Subdivision: %u \n", + uuid, sel_mthd, + (int)strlen(dev_info.name), dev_info.name, + (int)strlen(dev_info.model_name), dev_info.model_name, + (int)strlen(dev_info.manufacturer), dev_info.manufacturer, + (int)strlen(dev_info.model_nr), dev_info.model_nr, + (int)strlen(dev_info.serial), dev_info.serial, + dev_info.prim_dev_type.category, + dev_info.prim_dev_type.OUI[0], + dev_info.prim_dev_type.OUI[1], + dev_info.prim_dev_type.OUI[2], + dev_info.prim_dev_type.OUIsubdiv); + + kfree_skb(skb); + if (!wlp_uuid_is_set(&wlp->uuid)) { + dev_err(dev, "WLP: UUID is not set. Set via sysfs to " + "proceed. Respong to D1 message with error F0.\n"); + result = wlp_build_assoc_f0(wlp, &resp, + WLP_ASSOC_ERROR_NOT_READY); + if (result < 0) { + dev_err(dev, "WLP: Unable to construct F0 message.\n"); + goto out; + } + } else { + /* Construct D2 frame */ + result = wlp_build_assoc_d2(wlp, wss, &resp, &uuid_e); + if (result < 0) { + dev_err(dev, "WLP: Unable to construct D2 message.\n"); + goto out; + } + } + /* Send D2 frame */ + BUG_ON(wlp->xmit_frame == NULL); + result = wlp->xmit_frame(wlp, resp, src); + if (result < 0) { + dev_err(dev, "WLP: Unable to transmit D2 association " + "message: %d\n", result); + if (result == -ENXIO) + dev_err(dev, "WLP: Is network interface up? \n"); + /* We could try again ... */ + dev_kfree_skb_any(resp); /* we need to free if tx fails */ + } +out: + kfree(frame_ctx); + mutex_unlock(&wlp->mutex); + mutex_unlock(&wss->mutex); + d_fnend(6, dev, "WLP: handle D1 frame. wlp = %p\n", wlp); +} + +/** + * Parse incoming D2 frame, create and populate temporary cache + * + * @skb: socket buffer in which D2 frame can be found + * @neighbor: the neighbor that sent the D2 frame + * + * Will allocate memory for temporary storage of information learned during + * discovery. + */ +int wlp_parse_d2_frame_to_cache(struct wlp *wlp, struct sk_buff *skb, + struct wlp_neighbor_e *neighbor) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_frame_assoc *d2 = (void *) skb->data; + void *ptr = skb->data; + size_t len = skb->len; + size_t used; + ssize_t result; + struct wlp_uuid uuid_e; + struct wlp_device_info *nb_info; + enum wlp_assc_error assc_err; + + used = sizeof(*d2); + result = wlp_get_uuid_e(wlp, ptr + used, &uuid_e, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain UUID-E attribute from D2 " + "message.\n"); + goto error_parse; + } + if (memcmp(&uuid_e, &wlp->uuid, sizeof(uuid_e))) { + dev_err(dev, "WLP: UUID-E in incoming D2 does not match " + "local UUID sent in D1. \n"); + goto error_parse; + } + used += result; + result = wlp_get_uuid_r(wlp, ptr + used, &neighbor->uuid, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain UUID-R attribute from D2 " + "message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_wss_info_to_cache(wlp, ptr + used, neighbor, + len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSS information " + "from D2 message.\n"); + goto error_parse; + } + used += result; + neighbor->info = kzalloc(sizeof(struct wlp_device_info), GFP_KERNEL); + if (neighbor->info == NULL) { + dev_err(dev, "WLP: cannot allocate memory to store device " + "info.\n"); + result = -ENOMEM; + goto error_parse; + } + nb_info = neighbor->info; + result = wlp_get_dev_name(wlp, ptr + used, nb_info->name, + len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain Device Name from D2 " + "message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_variable_info(wlp, ptr + used, nb_info, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain Device Information from " + "D2 message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_wlp_assc_err(wlp, ptr + used, &assc_err, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WLP Association Error " + "Information from D2 message.\n"); + goto error_parse; + } + if (assc_err != WLP_ASSOC_ERROR_NONE) { + dev_err(dev, "WLP: neighbor device returned association " + "error %d\n", assc_err); + result = -EINVAL; + goto error_parse; + } + result = 0; +error_parse: + if (result < 0) + wlp_remove_neighbor_tmp_info(neighbor); + return result; +} + +/** + * Parse incoming D2 frame, populate attribute values of WSS bein enrolled in + * + * @wss: our WSS that will be enrolled + * @skb: socket buffer in which D2 frame can be found + * @neighbor: the neighbor that sent the D2 frame + * @wssid: the wssid of the WSS in which we want to enroll + * + * Forms part of enrollment sequence. We are trying to enroll in WSS with + * @wssid by using @neighbor as registrar. A D1 message was sent to + * @neighbor and now we need to parse the D2 response. The neighbor's + * response is searched for the requested WSS and if found (and it accepts + * enrollment), we store the information. + */ +int wlp_parse_d2_frame_to_enroll(struct wlp_wss *wss, struct sk_buff *skb, + struct wlp_neighbor_e *neighbor, + struct wlp_uuid *wssid) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + void *ptr = skb->data; + size_t len = skb->len; + size_t used; + ssize_t result; + struct wlp_uuid uuid_e; + struct wlp_uuid uuid_r; + struct wlp_device_info nb_info; + enum wlp_assc_error assc_err; + char uuid_bufA[WLP_WSS_UUID_STRSIZE]; + char uuid_bufB[WLP_WSS_UUID_STRSIZE]; + + used = sizeof(struct wlp_frame_assoc); + result = wlp_get_uuid_e(wlp, ptr + used, &uuid_e, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain UUID-E attribute from D2 " + "message.\n"); + goto error_parse; + } + if (memcmp(&uuid_e, &wlp->uuid, sizeof(uuid_e))) { + dev_err(dev, "WLP: UUID-E in incoming D2 does not match " + "local UUID sent in D1. \n"); + goto error_parse; + } + used += result; + result = wlp_get_uuid_r(wlp, ptr + used, &uuid_r, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain UUID-R attribute from D2 " + "message.\n"); + goto error_parse; + } + if (memcmp(&uuid_r, &neighbor->uuid, sizeof(uuid_r))) { + wlp_wss_uuid_print(uuid_bufA, sizeof(uuid_bufA), + &neighbor->uuid); + wlp_wss_uuid_print(uuid_bufB, sizeof(uuid_bufB), &uuid_r); + dev_err(dev, "WLP: UUID of neighbor does not match UUID " + "learned during discovery. Originally discovered: %s, " + "now from D2 message: %s\n", uuid_bufA, uuid_bufB); + result = -EINVAL; + goto error_parse; + } + used += result; + wss->wssid = *wssid; + result = wlp_get_wss_info_to_enroll(wlp, ptr + used, wss, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSS information " + "from D2 message.\n"); + goto error_parse; + } + if (wss->state != WLP_WSS_STATE_PART_ENROLLED) { + dev_err(dev, "WLP: D2 message did not contain information " + "for successful enrollment. \n"); + result = -EINVAL; + goto error_parse; + } + used += result; + /* Place device information on stack to continue parsing of message */ + result = wlp_get_dev_name(wlp, ptr + used, nb_info.name, + len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain Device Name from D2 " + "message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_variable_info(wlp, ptr + used, &nb_info, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain Device Information from " + "D2 message.\n"); + goto error_parse; + } + used += result; + result = wlp_get_wlp_assc_err(wlp, ptr + used, &assc_err, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WLP Association Error " + "Information from D2 message.\n"); + goto error_parse; + } + if (assc_err != WLP_ASSOC_ERROR_NONE) { + dev_err(dev, "WLP: neighbor device returned association " + "error %d\n", assc_err); + if (wss->state == WLP_WSS_STATE_PART_ENROLLED) { + dev_err(dev, "WLP: Enrolled in WSS (should not " + "happen according to spec). Undoing. \n"); + wlp_wss_reset(wss); + } + result = -EINVAL; + goto error_parse; + } + result = 0; +error_parse: + return result; +} + +/** + * Parse C3/C4 frame into provided variables + * + * @wssid: will point to copy of wssid retrieved from C3/C4 frame + * @tag: will point to copy of tag retrieved from C3/C4 frame + * @virt_addr: will point to copy of virtual address retrieved from C3/C4 + * frame. + * + * Calling function has to allocate memory for these values. + * + * skb contains a valid C3/C4 frame, return the individual fields of this + * frame in the provided variables. + */ +int wlp_parse_c3c4_frame(struct wlp *wlp, struct sk_buff *skb, + struct wlp_uuid *wssid, u8 *tag, + struct uwb_mac_addr *virt_addr) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + int result; + void *ptr = skb->data; + size_t len = skb->len; + size_t used; + char buf[WLP_WSS_UUID_STRSIZE]; + struct wlp_frame_assoc *assoc = ptr; + + d_fnstart(6, dev, "wlp %p, skb %p \n", wlp, skb); + used = sizeof(*assoc); + result = wlp_get_wssid(wlp, ptr + used, wssid, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSSID attribute from " + "%s message.\n", wlp_assoc_frame_str(assoc->type)); + goto error_parse; + } + used += result; + result = wlp_get_wss_tag(wlp, ptr + used, tag, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSS tag attribute from " + "%s message.\n", wlp_assoc_frame_str(assoc->type)); + goto error_parse; + } + used += result; + result = wlp_get_wss_virt(wlp, ptr + used, virt_addr, len - used); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSS virtual address " + "attribute from %s message.\n", + wlp_assoc_frame_str(assoc->type)); + goto error_parse; + } + wlp_wss_uuid_print(buf, sizeof(buf), wssid); + d_printf(6, dev, "WLP: parsed: WSSID %s, tag 0x%02x, virt " + "%02x:%02x:%02x:%02x:%02x:%02x \n", buf, *tag, + virt_addr->data[0], virt_addr->data[1], virt_addr->data[2], + virt_addr->data[3], virt_addr->data[4], virt_addr->data[5]); + +error_parse: + d_fnend(6, dev, "wlp %p, skb %p, result = %d \n", wlp, skb, result); + return result; +} + +/** + * Allocate memory for and populate fields of C1 or C2 association frame + * + * The C1 and C2 association frames appear identical - except for the type. + */ +static +int wlp_build_assoc_c1c2(struct wlp *wlp, struct wlp_wss *wss, + struct sk_buff **skb, enum wlp_assoc_type type) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = -ENOMEM; + struct { + struct wlp_frame_assoc c_hdr; + struct wlp_attr_wssid wssid; + } *c; + struct sk_buff *_skb; + + d_fnstart(6, dev, "wlp %p, wss %p \n", wlp, wss); + _skb = dev_alloc_skb(sizeof(*c)); + if (_skb == NULL) { + dev_err(dev, "WLP: Unable to allocate memory for C1/C2 " + "association frame. \n"); + goto error_alloc; + } + c = (void *) _skb->data; + d_printf(6, dev, "C1/C2 starts at %p \n", c); + c->c_hdr.hdr.mux_hdr = cpu_to_le16(WLP_PROTOCOL_ID); + c->c_hdr.hdr.type = WLP_FRAME_ASSOCIATION; + c->c_hdr.type = type; + wlp_set_version(&c->c_hdr.version, WLP_VERSION); + wlp_set_msg_type(&c->c_hdr.msg_type, type); + wlp_set_wssid(&c->wssid, &wss->wssid); + skb_put(_skb, sizeof(*c)); + d_printf(6, dev, "C1/C2 message:\n"); + d_dump(6, dev, c, sizeof(*c)); + *skb = _skb; + result = 0; +error_alloc: + d_fnend(6, dev, "wlp %p, wss %p, result %d \n", wlp, wss, result); + return result; +} + + +static +int wlp_build_assoc_c1(struct wlp *wlp, struct wlp_wss *wss, + struct sk_buff **skb) +{ + return wlp_build_assoc_c1c2(wlp, wss, skb, WLP_ASSOC_C1); +} + +static +int wlp_build_assoc_c2(struct wlp *wlp, struct wlp_wss *wss, + struct sk_buff **skb) +{ + return wlp_build_assoc_c1c2(wlp, wss, skb, WLP_ASSOC_C2); +} + + +/** + * Allocate memory for and populate fields of C3 or C4 association frame + * + * The C3 and C4 association frames appear identical - except for the type. + */ +static +int wlp_build_assoc_c3c4(struct wlp *wlp, struct wlp_wss *wss, + struct sk_buff **skb, enum wlp_assoc_type type) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = -ENOMEM; + struct { + struct wlp_frame_assoc c_hdr; + struct wlp_attr_wssid wssid; + struct wlp_attr_wss_tag wss_tag; + struct wlp_attr_wss_virt wss_virt; + } *c; + struct sk_buff *_skb; + + d_fnstart(6, dev, "wlp %p, wss %p \n", wlp, wss); + _skb = dev_alloc_skb(sizeof(*c)); + if (_skb == NULL) { + dev_err(dev, "WLP: Unable to allocate memory for C3/C4 " + "association frame. \n"); + goto error_alloc; + } + c = (void *) _skb->data; + d_printf(6, dev, "C3/C4 starts at %p \n", c); + c->c_hdr.hdr.mux_hdr = cpu_to_le16(WLP_PROTOCOL_ID); + c->c_hdr.hdr.type = WLP_FRAME_ASSOCIATION; + c->c_hdr.type = type; + wlp_set_version(&c->c_hdr.version, WLP_VERSION); + wlp_set_msg_type(&c->c_hdr.msg_type, type); + wlp_set_wssid(&c->wssid, &wss->wssid); + wlp_set_wss_tag(&c->wss_tag, wss->tag); + wlp_set_wss_virt(&c->wss_virt, &wss->virtual_addr); + skb_put(_skb, sizeof(*c)); + d_printf(6, dev, "C3/C4 message:\n"); + d_dump(6, dev, c, sizeof(*c)); + *skb = _skb; + result = 0; +error_alloc: + d_fnend(6, dev, "wlp %p, wss %p, result %d \n", wlp, wss, result); + return result; +} + +static +int wlp_build_assoc_c3(struct wlp *wlp, struct wlp_wss *wss, + struct sk_buff **skb) +{ + return wlp_build_assoc_c3c4(wlp, wss, skb, WLP_ASSOC_C3); +} + +static +int wlp_build_assoc_c4(struct wlp *wlp, struct wlp_wss *wss, + struct sk_buff **skb) +{ + return wlp_build_assoc_c3c4(wlp, wss, skb, WLP_ASSOC_C4); +} + + +#define wlp_send_assoc(type, id) \ +static int wlp_send_assoc_##type(struct wlp *wlp, struct wlp_wss *wss, \ + struct uwb_dev_addr *dev_addr) \ +{ \ + struct device *dev = &wlp->rc->uwb_dev.dev; \ + int result; \ + struct sk_buff *skb = NULL; \ + d_fnstart(6, dev, "wlp %p, wss %p, neighbor: %02x:%02x\n", \ + wlp, wss, dev_addr->data[1], dev_addr->data[0]); \ + d_printf(6, dev, "WLP: Constructing %s frame. \n", \ + wlp_assoc_frame_str(id)); \ + /* Build the frame */ \ + result = wlp_build_assoc_##type(wlp, wss, &skb); \ + if (result < 0) { \ + dev_err(dev, "WLP: Unable to construct %s association " \ + "frame: %d\n", wlp_assoc_frame_str(id), result);\ + goto error_build_assoc; \ + } \ + /* Send the frame */ \ + d_printf(6, dev, "Transmitting %s frame to %02x:%02x \n", \ + wlp_assoc_frame_str(id), \ + dev_addr->data[1], dev_addr->data[0]); \ + BUG_ON(wlp->xmit_frame == NULL); \ + result = wlp->xmit_frame(wlp, skb, dev_addr); \ + if (result < 0) { \ + dev_err(dev, "WLP: Unable to transmit %s association " \ + "message: %d\n", wlp_assoc_frame_str(id), \ + result); \ + if (result == -ENXIO) \ + dev_err(dev, "WLP: Is network interface " \ + "up? \n"); \ + goto error_xmit; \ + } \ + return 0; \ +error_xmit: \ + /* We could try again ... */ \ + dev_kfree_skb_any(skb);/*we need to free if tx fails*/ \ +error_build_assoc: \ + d_fnend(6, dev, "wlp %p, wss %p, neighbor: %02x:%02x\n", \ + wlp, wss, dev_addr->data[1], dev_addr->data[0]); \ + return result; \ +} + +wlp_send_assoc(d1, WLP_ASSOC_D1) +wlp_send_assoc(c1, WLP_ASSOC_C1) +wlp_send_assoc(c3, WLP_ASSOC_C3) + +int wlp_send_assoc_frame(struct wlp *wlp, struct wlp_wss *wss, + struct uwb_dev_addr *dev_addr, + enum wlp_assoc_type type) +{ + int result = 0; + struct device *dev = &wlp->rc->uwb_dev.dev; + switch (type) { + case WLP_ASSOC_D1: + result = wlp_send_assoc_d1(wlp, wss, dev_addr); + break; + case WLP_ASSOC_C1: + result = wlp_send_assoc_c1(wlp, wss, dev_addr); + break; + case WLP_ASSOC_C3: + result = wlp_send_assoc_c3(wlp, wss, dev_addr); + break; + default: + dev_err(dev, "WLP: Received request to send unknown " + "association message.\n"); + result = -EINVAL; + break; + } + return result; +} + +/** + * Handle incoming C1 frame + * + * The frame has already been verified to contain an Association header with + * the correct version number. Parse the incoming frame, construct and send + * a C2 frame in response. + */ +void wlp_handle_c1_frame(struct work_struct *ws) +{ + struct wlp_assoc_frame_ctx *frame_ctx = container_of(ws, + struct wlp_assoc_frame_ctx, + ws); + struct wlp *wlp = frame_ctx->wlp; + struct wlp_wss *wss = &wlp->wss; + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_frame_assoc *c1 = (void *) frame_ctx->skb->data; + unsigned int len = frame_ctx->skb->len; + struct uwb_dev_addr *src = &frame_ctx->src; + int result; + struct wlp_uuid wssid; + char buf[WLP_WSS_UUID_STRSIZE]; + struct sk_buff *resp = NULL; + + /* Parse C1 frame */ + d_fnstart(6, dev, "WLP: handle C1 frame. wlp = %p, c1 = %p\n", + wlp, c1); + mutex_lock(&wss->mutex); + result = wlp_get_wssid(wlp, (void *)c1 + sizeof(*c1), &wssid, + len - sizeof(*c1)); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSSID from C1 frame.\n"); + goto out; + } + wlp_wss_uuid_print(buf, sizeof(buf), &wssid); + d_printf(6, dev, "Received C1 frame with WSSID %s \n", buf); + if (!memcmp(&wssid, &wss->wssid, sizeof(wssid)) + && wss->state == WLP_WSS_STATE_ACTIVE) { + d_printf(6, dev, "WSSID from C1 frame is known locally " + "and is active\n"); + /* Construct C2 frame */ + result = wlp_build_assoc_c2(wlp, wss, &resp); + if (result < 0) { + dev_err(dev, "WLP: Unable to construct C2 message.\n"); + goto out; + } + } else { + d_printf(6, dev, "WSSID from C1 frame is not known locally " + "or is not active\n"); + /* Construct F0 frame */ + result = wlp_build_assoc_f0(wlp, &resp, WLP_ASSOC_ERROR_INV); + if (result < 0) { + dev_err(dev, "WLP: Unable to construct F0 message.\n"); + goto out; + } + } + /* Send C2 frame */ + d_printf(6, dev, "Transmitting response (C2/F0) frame to %02x:%02x \n", + src->data[1], src->data[0]); + BUG_ON(wlp->xmit_frame == NULL); + result = wlp->xmit_frame(wlp, resp, src); + if (result < 0) { + dev_err(dev, "WLP: Unable to transmit response association " + "message: %d\n", result); + if (result == -ENXIO) + dev_err(dev, "WLP: Is network interface up? \n"); + /* We could try again ... */ + dev_kfree_skb_any(resp); /* we need to free if tx fails */ + } +out: + kfree_skb(frame_ctx->skb); + kfree(frame_ctx); + mutex_unlock(&wss->mutex); + d_fnend(6, dev, "WLP: handle C1 frame. wlp = %p\n", wlp); +} + +/** + * Handle incoming C3 frame + * + * The frame has already been verified to contain an Association header with + * the correct version number. Parse the incoming frame, construct and send + * a C4 frame in response. If the C3 frame identifies a WSS that is locally + * active then we connect to this neighbor (add it to our EDA cache). + */ +void wlp_handle_c3_frame(struct work_struct *ws) +{ + struct wlp_assoc_frame_ctx *frame_ctx = container_of(ws, + struct wlp_assoc_frame_ctx, + ws); + struct wlp *wlp = frame_ctx->wlp; + struct wlp_wss *wss = &wlp->wss; + struct device *dev = &wlp->rc->uwb_dev.dev; + struct sk_buff *skb = frame_ctx->skb; + struct uwb_dev_addr *src = &frame_ctx->src; + int result; + char buf[WLP_WSS_UUID_STRSIZE]; + struct sk_buff *resp = NULL; + struct wlp_uuid wssid; + u8 tag; + struct uwb_mac_addr virt_addr; + + /* Parse C3 frame */ + d_fnstart(6, dev, "WLP: handle C3 frame. wlp = %p, skb = %p\n", + wlp, skb); + mutex_lock(&wss->mutex); + result = wlp_parse_c3c4_frame(wlp, skb, &wssid, &tag, &virt_addr); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain values from C3 frame.\n"); + goto out; + } + wlp_wss_uuid_print(buf, sizeof(buf), &wssid); + d_printf(6, dev, "Received C3 frame with WSSID %s \n", buf); + if (!memcmp(&wssid, &wss->wssid, sizeof(wssid)) + && wss->state >= WLP_WSS_STATE_ACTIVE) { + d_printf(6, dev, "WSSID from C3 frame is known locally " + "and is active\n"); + result = wlp_eda_update_node(&wlp->eda, src, wss, + (void *) virt_addr.data, tag, + WLP_WSS_CONNECTED); + if (result < 0) { + dev_err(dev, "WLP: Unable to update EDA cache " + "with new connected neighbor information.\n"); + result = wlp_build_assoc_f0(wlp, &resp, + WLP_ASSOC_ERROR_INT); + if (result < 0) { + dev_err(dev, "WLP: Unable to construct F0 " + "message.\n"); + goto out; + } + } else { + wss->state = WLP_WSS_STATE_CONNECTED; + /* Construct C4 frame */ + result = wlp_build_assoc_c4(wlp, wss, &resp); + if (result < 0) { + dev_err(dev, "WLP: Unable to construct C4 " + "message.\n"); + goto out; + } + } + } else { + d_printf(6, dev, "WSSID from C3 frame is not known locally " + "or is not active\n"); + /* Construct F0 frame */ + result = wlp_build_assoc_f0(wlp, &resp, WLP_ASSOC_ERROR_INV); + if (result < 0) { + dev_err(dev, "WLP: Unable to construct F0 message.\n"); + goto out; + } + } + /* Send C4 frame */ + d_printf(6, dev, "Transmitting response (C4/F0) frame to %02x:%02x \n", + src->data[1], src->data[0]); + BUG_ON(wlp->xmit_frame == NULL); + result = wlp->xmit_frame(wlp, resp, src); + if (result < 0) { + dev_err(dev, "WLP: Unable to transmit response association " + "message: %d\n", result); + if (result == -ENXIO) + dev_err(dev, "WLP: Is network interface up? \n"); + /* We could try again ... */ + dev_kfree_skb_any(resp); /* we need to free if tx fails */ + } +out: + kfree_skb(frame_ctx->skb); + kfree(frame_ctx); + mutex_unlock(&wss->mutex); + d_fnend(6, dev, "WLP: handle C3 frame. wlp = %p, skb = %p\n", + wlp, skb); +} + + diff --git a/drivers/uwb/wlp/sysfs.c b/drivers/uwb/wlp/sysfs.c new file mode 100644 index 000000000000..cfbdfdddb74a --- /dev/null +++ b/drivers/uwb/wlp/sysfs.c @@ -0,0 +1,715 @@ +/* + * WiMedia Logical Link Control Protocol (WLP) + * sysfs functions + * + * Copyright (C) 2007 Intel Corporation + * Reinette Chatre <reinette.chatre@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: Docs + * + */ + +#include <linux/wlp.h> +#define D_LOCAL 6 +#include <linux/uwb/debug.h> +#include "wlp-internal.h" + +static +size_t wlp_wss_wssid_e_print(char *buf, size_t bufsize, + struct wlp_wssid_e *wssid_e) +{ + size_t used = 0; + used += scnprintf(buf, bufsize, " WSS: "); + used += wlp_wss_uuid_print(buf + used, bufsize - used, + &wssid_e->wssid); + + if (wssid_e->info != NULL) { + used += scnprintf(buf + used, bufsize - used, " "); + used += uwb_mac_addr_print(buf + used, bufsize - used, + &wssid_e->info->bcast); + used += scnprintf(buf + used, bufsize - used, " %u %u %s\n", + wssid_e->info->accept_enroll, + wssid_e->info->sec_status, + wssid_e->info->name); + } + return used; +} + +/** + * Print out information learned from neighbor discovery + * + * Some fields being printed may not be included in the device discovery + * information (it is not mandatory). We are thus careful how the + * information is printed to ensure it is clear to the user what field is + * being referenced. + * The information being printed is for one time use - temporary storage is + * cleaned after it is printed. + * + * Ideally sysfs output should be on one line. The information printed here + * contain a few strings so it will be hard to parse if they are all + * printed on the same line - without agreeing on a standard field + * separator. + */ +static +ssize_t wlp_wss_neighborhood_print_remove(struct wlp *wlp, char *buf, + size_t bufsize) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + size_t used = 0; + struct wlp_neighbor_e *neighb; + struct wlp_wssid_e *wssid_e; + d_fnstart(6, dev, "wlp %p\n", wlp); + mutex_lock(&wlp->nbmutex); + used = scnprintf(buf, bufsize, "#Neighbor information\n" + "#uuid dev_addr\n" + "# Device Name:\n# Model Name:\n# Manufacturer:\n" + "# Model Nr:\n# Serial:\n" + "# Pri Dev type: CategoryID OUI OUISubdiv " + "SubcategoryID\n" + "# WSS: WSSID WSS_name accept_enroll sec_status " + "bcast\n" + "# WSS: WSSID WSS_name accept_enroll sec_status " + "bcast\n\n"); + list_for_each_entry(neighb, &wlp->neighbors, node) { + if (bufsize - used <= 0) + goto out; + used += wlp_wss_uuid_print(buf + used, bufsize - used, + &neighb->uuid); + buf[used++] = ' '; + used += uwb_dev_addr_print(buf + used, bufsize - used, + &neighb->uwb_dev->dev_addr); + if (neighb->info != NULL) + used += scnprintf(buf + used, bufsize - used, + "\n Device Name: %s\n" + " Model Name: %s\n" + " Manufacturer:%s \n" + " Model Nr: %s\n" + " Serial: %s\n" + " Pri Dev type: " + "%u %02x:%02x:%02x %u %u\n", + neighb->info->name, + neighb->info->model_name, + neighb->info->manufacturer, + neighb->info->model_nr, + neighb->info->serial, + neighb->info->prim_dev_type.category, + neighb->info->prim_dev_type.OUI[0], + neighb->info->prim_dev_type.OUI[1], + neighb->info->prim_dev_type.OUI[2], + neighb->info->prim_dev_type.OUIsubdiv, + neighb->info->prim_dev_type.subID); + list_for_each_entry(wssid_e, &neighb->wssid, node) { + used += wlp_wss_wssid_e_print(buf + used, + bufsize - used, + wssid_e); + } + buf[used++] = '\n'; + wlp_remove_neighbor_tmp_info(neighb); + } + + +out: + mutex_unlock(&wlp->nbmutex); + d_fnend(6, dev, "wlp %p\n", wlp); + return used; +} + + +/** + * Show properties of all WSS in neighborhood. + * + * Will trigger a complete discovery of WSS activated by this device and + * its neighbors. + */ +ssize_t wlp_neighborhood_show(struct wlp *wlp, char *buf) +{ + wlp_discover(wlp); + return wlp_wss_neighborhood_print_remove(wlp, buf, PAGE_SIZE); +} +EXPORT_SYMBOL_GPL(wlp_neighborhood_show); + +static +ssize_t __wlp_wss_properties_show(struct wlp_wss *wss, char *buf, + size_t bufsize) +{ + ssize_t result; + + result = wlp_wss_uuid_print(buf, bufsize, &wss->wssid); + result += scnprintf(buf + result, bufsize - result, " "); + result += uwb_mac_addr_print(buf + result, bufsize - result, + &wss->bcast); + result += scnprintf(buf + result, bufsize - result, + " 0x%02x %u ", wss->hash, wss->secure_status); + result += wlp_wss_key_print(buf + result, bufsize - result, + wss->master_key); + result += scnprintf(buf + result, bufsize - result, " 0x%02x ", + wss->tag); + result += uwb_mac_addr_print(buf + result, bufsize - result, + &wss->virtual_addr); + result += scnprintf(buf + result, bufsize - result, " %s", wss->name); + result += scnprintf(buf + result, bufsize - result, + "\n\n#WSSID\n#WSS broadcast address\n" + "#WSS hash\n#WSS secure status\n" + "#WSS master key\n#WSS local tag\n" + "#WSS local virtual EUI-48\n#WSS name\n"); + return result; +} + +/** + * Show which WSS is activated. + */ +ssize_t wlp_wss_activate_show(struct wlp_wss *wss, char *buf) +{ + int result = 0; + + if (mutex_lock_interruptible(&wss->mutex)) + goto out; + if (wss->state >= WLP_WSS_STATE_ACTIVE) + result = __wlp_wss_properties_show(wss, buf, PAGE_SIZE); + else + result = scnprintf(buf, PAGE_SIZE, "No local WSS active.\n"); + result += scnprintf(buf + result, PAGE_SIZE - result, + "\n\n" + "# echo WSSID SECURE_STATUS ACCEPT_ENROLLMENT " + "NAME #create new WSS\n" + "# echo WSSID [DEV ADDR] #enroll in and activate " + "existing WSS, can request registrar\n" + "#\n" + "# WSSID is a 16 byte hex array. Eg. 12 A3 3B ... \n" + "# SECURE_STATUS 0 - unsecure, 1 - secure (default)\n" + "# ACCEPT_ENROLLMENT 0 - no, 1 - yes (default)\n" + "# NAME is the text string identifying the WSS\n" + "# DEV ADDR is the device address of neighbor " + "that should be registrar. Eg. 32:AB\n"); + + mutex_unlock(&wss->mutex); +out: + return result; + +} +EXPORT_SYMBOL_GPL(wlp_wss_activate_show); + +/** + * Create/activate a new WSS or enroll/activate in neighboring WSS + * + * The user can provide the WSSID of a WSS in which it wants to enroll. + * Only the WSSID is necessary if the WSS have been discovered before. If + * the WSS has not been discovered before, or the user wants to use a + * particular neighbor as its registrar, then the user can also provide a + * device address or the neighbor that will be used as registrar. + * + * A new WSS is created when the user provides a WSSID, secure status, and + * WSS name. + */ +ssize_t wlp_wss_activate_store(struct wlp_wss *wss, + const char *buf, size_t size) +{ + ssize_t result = -EINVAL; + struct wlp_uuid wssid; + struct uwb_dev_addr dev; + struct uwb_dev_addr bcast = {.data = {0xff, 0xff} }; + char name[65]; + unsigned sec_status, accept; + memset(name, 0, sizeof(name)); + result = sscanf(buf, "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx:%02hhx", + &wssid.data[0] , &wssid.data[1], + &wssid.data[2] , &wssid.data[3], + &wssid.data[4] , &wssid.data[5], + &wssid.data[6] , &wssid.data[7], + &wssid.data[8] , &wssid.data[9], + &wssid.data[10], &wssid.data[11], + &wssid.data[12], &wssid.data[13], + &wssid.data[14], &wssid.data[15], + &dev.data[1], &dev.data[0]); + if (result == 16 || result == 17) { + result = sscanf(buf, "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%u %u %64c", + &wssid.data[0] , &wssid.data[1], + &wssid.data[2] , &wssid.data[3], + &wssid.data[4] , &wssid.data[5], + &wssid.data[6] , &wssid.data[7], + &wssid.data[8] , &wssid.data[9], + &wssid.data[10], &wssid.data[11], + &wssid.data[12], &wssid.data[13], + &wssid.data[14], &wssid.data[15], + &sec_status, &accept, name); + if (result == 16) + result = wlp_wss_enroll_activate(wss, &wssid, &bcast); + else if (result == 19) { + sec_status = sec_status == 0 ? 0 : 1; + accept = accept == 0 ? 0 : 1; + /* We read name using %c, so the newline needs to be + * removed */ + if (strlen(name) != sizeof(name) - 1) + name[strlen(name) - 1] = '\0'; + result = wlp_wss_create_activate(wss, &wssid, name, + sec_status, accept); + } else + result = -EINVAL; + } else if (result == 18) + result = wlp_wss_enroll_activate(wss, &wssid, &dev); + else + result = -EINVAL; + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(wlp_wss_activate_store); + +/** + * Show the UUID of this host + */ +ssize_t wlp_uuid_show(struct wlp *wlp, char *buf) +{ + ssize_t result = 0; + + mutex_lock(&wlp->mutex); + result = wlp_wss_uuid_print(buf, PAGE_SIZE, &wlp->uuid); + buf[result++] = '\n'; + mutex_unlock(&wlp->mutex); + return result; +} +EXPORT_SYMBOL_GPL(wlp_uuid_show); + +/** + * Store a new UUID for this host + * + * According to the spec this should be encoded as an octet string in the + * order the octets are shown in string representation in RFC 4122 (WLP + * 0.99 [Table 6]) + * + * We do not check value provided by user. + */ +ssize_t wlp_uuid_store(struct wlp *wlp, const char *buf, size_t size) +{ + ssize_t result; + struct wlp_uuid uuid; + + mutex_lock(&wlp->mutex); + result = sscanf(buf, "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx " + "%02hhx %02hhx %02hhx %02hhx ", + &uuid.data[0] , &uuid.data[1], + &uuid.data[2] , &uuid.data[3], + &uuid.data[4] , &uuid.data[5], + &uuid.data[6] , &uuid.data[7], + &uuid.data[8] , &uuid.data[9], + &uuid.data[10], &uuid.data[11], + &uuid.data[12], &uuid.data[13], + &uuid.data[14], &uuid.data[15]); + if (result != 16) { + result = -EINVAL; + goto error; + } + wlp->uuid = uuid; +error: + mutex_unlock(&wlp->mutex); + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(wlp_uuid_store); + +/** + * Show contents of members of device information structure + */ +#define wlp_dev_info_show(type) \ +ssize_t wlp_dev_##type##_show(struct wlp *wlp, char *buf) \ +{ \ + ssize_t result = 0; \ + mutex_lock(&wlp->mutex); \ + if (wlp->dev_info == NULL) { \ + result = __wlp_setup_device_info(wlp); \ + if (result < 0) \ + goto out; \ + } \ + result = scnprintf(buf, PAGE_SIZE, "%s\n", wlp->dev_info->type);\ +out: \ + mutex_unlock(&wlp->mutex); \ + return result; \ +} \ +EXPORT_SYMBOL_GPL(wlp_dev_##type##_show); + +wlp_dev_info_show(name) +wlp_dev_info_show(model_name) +wlp_dev_info_show(model_nr) +wlp_dev_info_show(manufacturer) +wlp_dev_info_show(serial) + +/** + * Store contents of members of device information structure + */ +#define wlp_dev_info_store(type, len) \ +ssize_t wlp_dev_##type##_store(struct wlp *wlp, const char *buf, size_t size)\ +{ \ + ssize_t result; \ + char format[10]; \ + mutex_lock(&wlp->mutex); \ + if (wlp->dev_info == NULL) { \ + result = __wlp_alloc_device_info(wlp); \ + if (result < 0) \ + goto out; \ + } \ + memset(wlp->dev_info->type, 0, sizeof(wlp->dev_info->type)); \ + sprintf(format, "%%%uc", len); \ + result = sscanf(buf, format, wlp->dev_info->type); \ +out: \ + mutex_unlock(&wlp->mutex); \ + return result < 0? result : size; \ +} \ +EXPORT_SYMBOL_GPL(wlp_dev_##type##_store); + +wlp_dev_info_store(name, 32) +wlp_dev_info_store(manufacturer, 64) +wlp_dev_info_store(model_name, 32) +wlp_dev_info_store(model_nr, 32) +wlp_dev_info_store(serial, 32) + +static +const char *__wlp_dev_category[] = { + [WLP_DEV_CAT_COMPUTER] = "Computer", + [WLP_DEV_CAT_INPUT] = "Input device", + [WLP_DEV_CAT_PRINT_SCAN_FAX_COPIER] = "Printer, scanner, FAX, or " + "Copier", + [WLP_DEV_CAT_CAMERA] = "Camera", + [WLP_DEV_CAT_STORAGE] = "Storage Network", + [WLP_DEV_CAT_INFRASTRUCTURE] = "Infrastructure", + [WLP_DEV_CAT_DISPLAY] = "Display", + [WLP_DEV_CAT_MULTIM] = "Multimedia device", + [WLP_DEV_CAT_GAMING] = "Gaming device", + [WLP_DEV_CAT_TELEPHONE] = "Telephone", + [WLP_DEV_CAT_OTHER] = "Other", +}; + +static +const char *wlp_dev_category_str(unsigned cat) +{ + if ((cat >= WLP_DEV_CAT_COMPUTER && cat <= WLP_DEV_CAT_TELEPHONE) + || cat == WLP_DEV_CAT_OTHER) + return __wlp_dev_category[cat]; + return "unknown category"; +} + +ssize_t wlp_dev_prim_category_show(struct wlp *wlp, char *buf) +{ + ssize_t result = 0; + mutex_lock(&wlp->mutex); + if (wlp->dev_info == NULL) { + result = __wlp_setup_device_info(wlp); + if (result < 0) + goto out; + } + result = scnprintf(buf, PAGE_SIZE, "%s\n", + wlp_dev_category_str(wlp->dev_info->prim_dev_type.category)); +out: + mutex_unlock(&wlp->mutex); + return result; +} +EXPORT_SYMBOL_GPL(wlp_dev_prim_category_show); + +ssize_t wlp_dev_prim_category_store(struct wlp *wlp, const char *buf, + size_t size) +{ + ssize_t result; + u16 cat; + mutex_lock(&wlp->mutex); + if (wlp->dev_info == NULL) { + result = __wlp_alloc_device_info(wlp); + if (result < 0) + goto out; + } + result = sscanf(buf, "%hu", &cat); + if ((cat >= WLP_DEV_CAT_COMPUTER && cat <= WLP_DEV_CAT_TELEPHONE) + || cat == WLP_DEV_CAT_OTHER) + wlp->dev_info->prim_dev_type.category = cat; + else + result = -EINVAL; +out: + mutex_unlock(&wlp->mutex); + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(wlp_dev_prim_category_store); + +ssize_t wlp_dev_prim_OUI_show(struct wlp *wlp, char *buf) +{ + ssize_t result = 0; + mutex_lock(&wlp->mutex); + if (wlp->dev_info == NULL) { + result = __wlp_setup_device_info(wlp); + if (result < 0) + goto out; + } + result = scnprintf(buf, PAGE_SIZE, "%02x:%02x:%02x\n", + wlp->dev_info->prim_dev_type.OUI[0], + wlp->dev_info->prim_dev_type.OUI[1], + wlp->dev_info->prim_dev_type.OUI[2]); +out: + mutex_unlock(&wlp->mutex); + return result; +} +EXPORT_SYMBOL_GPL(wlp_dev_prim_OUI_show); + +ssize_t wlp_dev_prim_OUI_store(struct wlp *wlp, const char *buf, size_t size) +{ + ssize_t result; + u8 OUI[3]; + mutex_lock(&wlp->mutex); + if (wlp->dev_info == NULL) { + result = __wlp_alloc_device_info(wlp); + if (result < 0) + goto out; + } + result = sscanf(buf, "%hhx:%hhx:%hhx", + &OUI[0], &OUI[1], &OUI[2]); + if (result != 3) { + result = -EINVAL; + goto out; + } else + memcpy(wlp->dev_info->prim_dev_type.OUI, OUI, sizeof(OUI)); +out: + mutex_unlock(&wlp->mutex); + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(wlp_dev_prim_OUI_store); + + +ssize_t wlp_dev_prim_OUI_sub_show(struct wlp *wlp, char *buf) +{ + ssize_t result = 0; + mutex_lock(&wlp->mutex); + if (wlp->dev_info == NULL) { + result = __wlp_setup_device_info(wlp); + if (result < 0) + goto out; + } + result = scnprintf(buf, PAGE_SIZE, "%u\n", + wlp->dev_info->prim_dev_type.OUIsubdiv); +out: + mutex_unlock(&wlp->mutex); + return result; +} +EXPORT_SYMBOL_GPL(wlp_dev_prim_OUI_sub_show); + +ssize_t wlp_dev_prim_OUI_sub_store(struct wlp *wlp, const char *buf, + size_t size) +{ + ssize_t result; + unsigned sub; + u8 max_sub = ~0; + mutex_lock(&wlp->mutex); + if (wlp->dev_info == NULL) { + result = __wlp_alloc_device_info(wlp); + if (result < 0) + goto out; + } + result = sscanf(buf, "%u", &sub); + if (sub <= max_sub) + /* unsigned to u8 */ + wlp->dev_info->prim_dev_type.OUIsubdiv = sub; + else + result = -EINVAL; +out: + mutex_unlock(&wlp->mutex); + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(wlp_dev_prim_OUI_sub_store); + +ssize_t wlp_dev_prim_subcat_show(struct wlp *wlp, char *buf) +{ + ssize_t result = 0; + mutex_lock(&wlp->mutex); + if (wlp->dev_info == NULL) { + result = __wlp_setup_device_info(wlp); + if (result < 0) + goto out; + } + result = scnprintf(buf, PAGE_SIZE, "%u\n", + wlp->dev_info->prim_dev_type.subID); +out: + mutex_unlock(&wlp->mutex); + return result; +} +EXPORT_SYMBOL_GPL(wlp_dev_prim_subcat_show); + +ssize_t wlp_dev_prim_subcat_store(struct wlp *wlp, const char *buf, + size_t size) +{ + ssize_t result; + unsigned sub; + __le16 max_sub = ~0; + mutex_lock(&wlp->mutex); + if (wlp->dev_info == NULL) { + result = __wlp_alloc_device_info(wlp); + if (result < 0) + goto out; + } + result = sscanf(buf, "%u", &sub); + if (sub <= max_sub) + /* unsigned to _le16 */ + wlp->dev_info->prim_dev_type.subID = sub; + else + result = -EINVAL; +out: + mutex_unlock(&wlp->mutex); + return result < 0? result : size; +} +EXPORT_SYMBOL_GPL(wlp_dev_prim_subcat_store); + +/** + * Subsystem implementation for interaction with individual WSS via sysfs + * + * Followed instructions for subsystem in Documentation/filesystems/sysfs.txt + */ + +#define kobj_to_wlp_wss(obj) container_of(obj, struct wlp_wss, kobj) +#define attr_to_wlp_wss_attr(_attr) \ + container_of(_attr, struct wlp_wss_attribute, attr) + +/** + * Sysfs subsystem: forward read calls + * + * Sysfs operation for forwarding read call to the show method of the + * attribute owner + */ +static +ssize_t wlp_wss_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct wlp_wss_attribute *wss_attr = attr_to_wlp_wss_attr(attr); + struct wlp_wss *wss = kobj_to_wlp_wss(kobj); + ssize_t ret = -EIO; + + if (wss_attr->show) + ret = wss_attr->show(wss, buf); + return ret; +} +/** + * Sysfs subsystem: forward write calls + * + * Sysfs operation for forwarding write call to the store method of the + * attribute owner + */ +static +ssize_t wlp_wss_attr_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t count) +{ + struct wlp_wss_attribute *wss_attr = attr_to_wlp_wss_attr(attr); + struct wlp_wss *wss = kobj_to_wlp_wss(kobj); + ssize_t ret = -EIO; + + if (wss_attr->store) + ret = wss_attr->store(wss, buf, count); + return ret; +} + +static +struct sysfs_ops wss_sysfs_ops = { + .show = wlp_wss_attr_show, + .store = wlp_wss_attr_store, +}; + +struct kobj_type wss_ktype = { + .release = wlp_wss_release, + .sysfs_ops = &wss_sysfs_ops, +}; + + +/** + * Sysfs files for individual WSS + */ + +/** + * Print static properties of this WSS + * + * The name of a WSS may not be null teminated. It's max size is 64 bytes + * so we copy it to a larger array just to make sure we print sane data. + */ +static ssize_t wlp_wss_properties_show(struct wlp_wss *wss, char *buf) +{ + int result = 0; + + if (mutex_lock_interruptible(&wss->mutex)) + goto out; + result = __wlp_wss_properties_show(wss, buf, PAGE_SIZE); + mutex_unlock(&wss->mutex); +out: + return result; +} +WSS_ATTR(properties, S_IRUGO, wlp_wss_properties_show, NULL); + +/** + * Print all connected members of this WSS + * The EDA cache contains all members of WSS neighborhood. + */ +static ssize_t wlp_wss_members_show(struct wlp_wss *wss, char *buf) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + return wlp_eda_show(wlp, buf); +} +WSS_ATTR(members, S_IRUGO, wlp_wss_members_show, NULL); + +static +const char *__wlp_strstate[] = { + "none", + "partially enrolled", + "enrolled", + "active", + "connected", +}; + +static const char *wlp_wss_strstate(unsigned state) +{ + if (state >= ARRAY_SIZE(__wlp_strstate)) + return "unknown state"; + return __wlp_strstate[state]; +} + +/* + * Print current state of this WSS + */ +static ssize_t wlp_wss_state_show(struct wlp_wss *wss, char *buf) +{ + int result = 0; + + if (mutex_lock_interruptible(&wss->mutex)) + goto out; + result = scnprintf(buf, PAGE_SIZE, "%s\n", + wlp_wss_strstate(wss->state)); + mutex_unlock(&wss->mutex); +out: + return result; +} +WSS_ATTR(state, S_IRUGO, wlp_wss_state_show, NULL); + + +static +struct attribute *wss_attrs[] = { + &wss_attr_properties.attr, + &wss_attr_members.attr, + &wss_attr_state.attr, + NULL, +}; + +struct attribute_group wss_attr_group = { + .name = NULL, /* we want them in the same directory */ + .attrs = wss_attrs, +}; diff --git a/drivers/uwb/wlp/txrx.c b/drivers/uwb/wlp/txrx.c new file mode 100644 index 000000000000..c701bd1a2887 --- /dev/null +++ b/drivers/uwb/wlp/txrx.c @@ -0,0 +1,374 @@ +/* + * WiMedia Logical Link Control Protocol (WLP) + * Message exchange infrastructure + * + * Copyright (C) 2007 Intel Corporation + * Reinette Chatre <reinette.chatre@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: Docs + * + */ + +#include <linux/etherdevice.h> +#include <linux/wlp.h> +#define D_LOCAL 5 +#include <linux/uwb/debug.h> +#include "wlp-internal.h" + + +/** + * Direct incoming association msg to correct parsing routine + * + * We only expect D1, E1, C1, C3 messages as new. All other incoming + * association messages should form part of an established session that is + * handled elsewhere. + * The handling of these messages often require calling sleeping functions + * - this cannot be done in interrupt context. We use the kernel's + * workqueue to handle these messages. + */ +static +void wlp_direct_assoc_frame(struct wlp *wlp, struct sk_buff *skb, + struct uwb_dev_addr *src) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_frame_assoc *assoc = (void *) skb->data; + struct wlp_assoc_frame_ctx *frame_ctx; + d_fnstart(5, dev, "wlp %p, skb %p\n", wlp, skb); + frame_ctx = kmalloc(sizeof(*frame_ctx), GFP_ATOMIC); + if (frame_ctx == NULL) { + dev_err(dev, "WLP: Unable to allocate memory for association " + "frame handling.\n"); + kfree_skb(skb); + goto out; + } + frame_ctx->wlp = wlp; + frame_ctx->skb = skb; + frame_ctx->src = *src; + switch (assoc->type) { + case WLP_ASSOC_D1: + d_printf(5, dev, "Received a D1 frame.\n"); + INIT_WORK(&frame_ctx->ws, wlp_handle_d1_frame); + schedule_work(&frame_ctx->ws); + break; + case WLP_ASSOC_E1: + d_printf(5, dev, "Received a E1 frame. FIXME?\n"); + kfree_skb(skb); /* Temporary until we handle it */ + kfree(frame_ctx); /* Temporary until we handle it */ + break; + case WLP_ASSOC_C1: + d_printf(5, dev, "Received a C1 frame.\n"); + INIT_WORK(&frame_ctx->ws, wlp_handle_c1_frame); + schedule_work(&frame_ctx->ws); + break; + case WLP_ASSOC_C3: + d_printf(5, dev, "Received a C3 frame.\n"); + INIT_WORK(&frame_ctx->ws, wlp_handle_c3_frame); + schedule_work(&frame_ctx->ws); + break; + default: + dev_err(dev, "Received unexpected association frame. " + "Type = %d \n", assoc->type); + kfree_skb(skb); + kfree(frame_ctx); + break; + } +out: + d_fnend(5, dev, "wlp %p\n", wlp); +} + +/** + * Process incoming association frame + * + * Although it could be possible to deal with some incoming association + * messages without creating a new session we are keeping things simple. We + * do not accept new association messages if there is a session in progress + * and the messages do not belong to that session. + * + * If an association message arrives that causes the creation of a session + * (WLP_ASSOC_E1) while we are in the process of creating a session then we + * rely on the neighbor mutex to protect the data. That is, the new session + * will not be started until the previous is completed. + */ +static +void wlp_receive_assoc_frame(struct wlp *wlp, struct sk_buff *skb, + struct uwb_dev_addr *src) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_frame_assoc *assoc = (void *) skb->data; + struct wlp_session *session = wlp->session; + u8 version; + d_fnstart(5, dev, "wlp %p, skb %p\n", wlp, skb); + + if (wlp_get_version(wlp, &assoc->version, &version, + sizeof(assoc->version)) < 0) + goto error; + if (version != WLP_VERSION) { + dev_err(dev, "Unsupported WLP version in association " + "message.\n"); + goto error; + } + if (session != NULL) { + /* Function that created this session is still holding the + * &wlp->mutex to protect this session. */ + if (assoc->type == session->exp_message || + assoc->type == WLP_ASSOC_F0) { + if (!memcmp(&session->neighbor_addr, src, + sizeof(*src))) { + session->data = skb; + (session->cb)(wlp); + } else { + dev_err(dev, "Received expected message from " + "unexpected source. Expected message " + "%d or F0 from %02x:%02x, but received " + "it from %02x:%02x. Dropping.\n", + session->exp_message, + session->neighbor_addr.data[1], + session->neighbor_addr.data[0], + src->data[1], src->data[0]); + goto error; + } + } else { + dev_err(dev, "Association already in progress. " + "Dropping.\n"); + goto error; + } + } else { + wlp_direct_assoc_frame(wlp, skb, src); + } + d_fnend(5, dev, "wlp %p\n", wlp); + return; +error: + kfree_skb(skb); + d_fnend(5, dev, "wlp %p\n", wlp); +} + +/** + * Verify incoming frame is from connected neighbor, prep to pass to WLP client + * + * Verification proceeds according to WLP 0.99 [7.3.1]. The source address + * is used to determine which neighbor is sending the frame and the WSS tag + * is used to know to which WSS the frame belongs (we only support one WSS + * so this test is straight forward). + * With the WSS found we need to ensure that we are connected before + * allowing the exchange of data frames. + */ +static +int wlp_verify_prep_rx_frame(struct wlp *wlp, struct sk_buff *skb, + struct uwb_dev_addr *src) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = -EINVAL; + struct wlp_eda_node eda_entry; + struct wlp_frame_std_abbrv_hdr *hdr = (void *) skb->data; + + d_fnstart(6, dev, "wlp %p, skb %p \n", wlp, skb); + /*verify*/ + result = wlp_copy_eda_node(&wlp->eda, src, &eda_entry); + if (result < 0) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Incoming frame is from unknown " + "neighbor %02x:%02x.\n", src->data[1], + src->data[0]); + goto out; + } + if (hdr->tag != eda_entry.tag) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Tag of incoming frame from " + "%02x:%02x does not match expected tag. " + "Received 0x%02x, expected 0x%02x. \n", + src->data[1], src->data[0], hdr->tag, + eda_entry.tag); + result = -EINVAL; + goto out; + } + if (eda_entry.state != WLP_WSS_CONNECTED) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Incoming frame from " + "%02x:%02x does is not from connected WSS.\n", + src->data[1], src->data[0]); + result = -EINVAL; + goto out; + } + /*prep*/ + skb_pull(skb, sizeof(*hdr)); +out: + d_fnend(6, dev, "wlp %p, skb %p, result = %d \n", wlp, skb, result); + return result; +} + +/** + * Receive a WLP frame from device + * + * @returns: 1 if calling function should free the skb + * 0 if it successfully handled skb and freed it + * 0 if error occured, will free skb in this case + */ +int wlp_receive_frame(struct device *dev, struct wlp *wlp, struct sk_buff *skb, + struct uwb_dev_addr *src) +{ + unsigned len = skb->len; + void *ptr = skb->data; + struct wlp_frame_hdr *hdr; + int result = 0; + + d_fnstart(6, dev, "skb (%p), len (%u)\n", skb, len); + if (len < sizeof(*hdr)) { + dev_err(dev, "Not enough data to parse WLP header.\n"); + result = -EINVAL; + goto out; + } + hdr = ptr; + d_dump(6, dev, hdr, sizeof(*hdr)); + if (le16_to_cpu(hdr->mux_hdr) != WLP_PROTOCOL_ID) { + dev_err(dev, "Not a WLP frame type.\n"); + result = -EINVAL; + goto out; + } + switch (hdr->type) { + case WLP_FRAME_STANDARD: + if (len < sizeof(struct wlp_frame_std_abbrv_hdr)) { + dev_err(dev, "Not enough data to parse Standard " + "WLP header.\n"); + goto out; + } + result = wlp_verify_prep_rx_frame(wlp, skb, src); + if (result < 0) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Verification of frame " + "from neighbor %02x:%02x failed.\n", + src->data[1], src->data[0]); + goto out; + } + result = 1; + break; + case WLP_FRAME_ABBREVIATED: + dev_err(dev, "Abbreviated frame received. FIXME?\n"); + kfree_skb(skb); + break; + case WLP_FRAME_CONTROL: + dev_err(dev, "Control frame received. FIXME?\n"); + kfree_skb(skb); + break; + case WLP_FRAME_ASSOCIATION: + if (len < sizeof(struct wlp_frame_assoc)) { + dev_err(dev, "Not enough data to parse Association " + "WLP header.\n"); + goto out; + } + d_printf(5, dev, "Association frame received.\n"); + wlp_receive_assoc_frame(wlp, skb, src); + break; + default: + dev_err(dev, "Invalid frame received.\n"); + result = -EINVAL; + break; + } +out: + if (result < 0) { + kfree_skb(skb); + result = 0; + } + d_fnend(6, dev, "skb (%p)\n", skb); + return result; +} +EXPORT_SYMBOL_GPL(wlp_receive_frame); + + +/** + * Verify frame from network stack, prepare for further transmission + * + * @skb: the socket buffer that needs to be prepared for transmission (it + * is in need of a WLP header). If this is a broadcast frame we take + * over the entire transmission. + * If it is a unicast the WSS connection should already be established + * and transmission will be done by the calling function. + * @dst: On return this will contain the device address to which the + * frame is destined. + * @returns: 0 on success no tx : WLP header sucessfully applied to skb buffer, + * calling function can proceed with tx + * 1 on success with tx : WLP will take over transmission of this + * frame + * <0 on error + * + * The network stack (WLP client) is attempting to transmit a frame. We can + * only transmit data if a local WSS is at least active (connection will be + * done here if this is a broadcast frame and neighbor also has the WSS + * active). + * + * The frame can be either broadcast or unicast. Broadcast in a WSS is + * supported via multicast, but we don't support multicast yet (until + * devices start to support MAB IEs). If a broadcast frame needs to be + * transmitted it is treated as a unicast frame to each neighbor. In this + * case the WLP takes over transmission of the skb and returns 1 + * to the caller to indicate so. Also, in this case, if a neighbor has the + * same WSS activated but is not connected then the WSS connection will be + * done at this time. The neighbor's virtual address will be learned at + * this time. + * + * The destination address in a unicast frame is the virtual address of the + * neighbor. This address only becomes known when a WSS connection is + * established. We thus rely on a broadcast frame to trigger the setup of + * WSS connections to all neighbors before we are able to send unicast + * frames to them. This seems reasonable as IP would usually use ARP first + * before any unicast frames are sent. + * + * If we are already connected to the neighbor (neighbor's virtual address + * is known) we just prepare the WLP header and the caller will continue to + * send the frame. + * + * A failure in this function usually indicates something that cannot be + * fixed automatically. So, if this function fails (@return < 0) the calling + * function should not retry to send the frame as it will very likely keep + * failing. + * + */ +int wlp_prepare_tx_frame(struct device *dev, struct wlp *wlp, + struct sk_buff *skb, struct uwb_dev_addr *dst) +{ + int result = -EINVAL; + struct ethhdr *eth_hdr = (void *) skb->data; + + d_fnstart(6, dev, "wlp (%p), skb (%p) \n", wlp, skb); + if (is_broadcast_ether_addr(eth_hdr->h_dest)) { + d_printf(6, dev, "WLP: handling broadcast frame. \n"); + result = wlp_eda_for_each(&wlp->eda, wlp_wss_send_copy, skb); + if (result < 0) { + if (printk_ratelimit()) + dev_err(dev, "Unable to handle broadcast " + "frame from WLP client.\n"); + goto out; + } + dev_kfree_skb_irq(skb); + result = 1; + /* Frame will be transmitted by WLP. */ + } else { + d_printf(6, dev, "WLP: handling unicast frame. \n"); + result = wlp_eda_for_virtual(&wlp->eda, eth_hdr->h_dest, dst, + wlp_wss_prep_hdr, skb); + if (unlikely(result < 0)) { + if (printk_ratelimit()) + dev_err(dev, "Unable to prepare " + "skb for transmission. \n"); + goto out; + } + } +out: + d_fnend(6, dev, "wlp (%p), skb (%p). result = %d \n", wlp, skb, result); + return result; +} +EXPORT_SYMBOL_GPL(wlp_prepare_tx_frame); diff --git a/drivers/uwb/wlp/wlp-internal.h b/drivers/uwb/wlp/wlp-internal.h new file mode 100644 index 000000000000..1c94fabfb1a7 --- /dev/null +++ b/drivers/uwb/wlp/wlp-internal.h @@ -0,0 +1,228 @@ +/* + * WiMedia Logical Link Control Protocol (WLP) + * Internal API + * + * Copyright (C) 2007 Intel Corporation + * Reinette Chatre <reinette.chatre@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + */ + +#ifndef __WLP_INTERNAL_H__ +#define __WLP_INTERNAL_H__ + +/** + * State of WSS connection + * + * A device needs to connect to a neighbor in an activated WSS before data + * can be transmitted. The spec also distinguishes between a new connection + * attempt and a connection attempt after previous connection attempts. The + * state WLP_WSS_CONNECT_FAILED is used for this scenario. See WLP 0.99 + * [7.2.6] + */ +enum wlp_wss_connect { + WLP_WSS_UNCONNECTED = 0, + WLP_WSS_CONNECTED, + WLP_WSS_CONNECT_FAILED, +}; + +extern struct kobj_type wss_ktype; +extern struct attribute_group wss_attr_group; + +extern int uwb_rc_ie_add(struct uwb_rc *, const struct uwb_ie_hdr *, size_t); +extern int uwb_rc_ie_rm(struct uwb_rc *, enum uwb_ie); + + +/* This should be changed to a dynamic array where entries are sorted + * by eth_addr and search is done in a binary form + * + * Although thinking twice about it: this technologie's maximum reach + * is 10 meters...unless you want to pack too much stuff in around + * your radio controller/WLP device, the list will probably not be + * too big. + * + * In any case, there is probably some data structure in the kernel + * than we could reused for that already. + * + * The below structure is really just good while we support one WSS per + * host. + */ +struct wlp_eda_node { + struct list_head list_node; + unsigned char eth_addr[ETH_ALEN]; + struct uwb_dev_addr dev_addr; + struct wlp_wss *wss; + unsigned char virt_addr[ETH_ALEN]; + u8 tag; + enum wlp_wss_connect state; +}; + +typedef int (*wlp_eda_for_each_f)(struct wlp *, struct wlp_eda_node *, void *); + +extern void wlp_eda_init(struct wlp_eda *); +extern void wlp_eda_release(struct wlp_eda *); +extern int wlp_eda_create_node(struct wlp_eda *, + const unsigned char eth_addr[ETH_ALEN], + const struct uwb_dev_addr *); +extern void wlp_eda_rm_node(struct wlp_eda *, const struct uwb_dev_addr *); +extern int wlp_eda_update_node(struct wlp_eda *, + const struct uwb_dev_addr *, + struct wlp_wss *, + const unsigned char virt_addr[ETH_ALEN], + const u8, const enum wlp_wss_connect); +extern int wlp_eda_update_node_state(struct wlp_eda *, + const struct uwb_dev_addr *, + const enum wlp_wss_connect); + +extern int wlp_copy_eda_node(struct wlp_eda *, struct uwb_dev_addr *, + struct wlp_eda_node *); +extern int wlp_eda_for_each(struct wlp_eda *, wlp_eda_for_each_f , void *); +extern int wlp_eda_for_virtual(struct wlp_eda *, + const unsigned char eth_addr[ETH_ALEN], + struct uwb_dev_addr *, + wlp_eda_for_each_f , void *); + + +extern void wlp_remove_neighbor_tmp_info(struct wlp_neighbor_e *); + +extern size_t wlp_wss_key_print(char *, size_t, u8 *); + +/* Function called when no more references to WSS exists */ +extern void wlp_wss_release(struct kobject *); + +extern void wlp_wss_reset(struct wlp_wss *); +extern int wlp_wss_create_activate(struct wlp_wss *, struct wlp_uuid *, + char *, unsigned, unsigned); +extern int wlp_wss_enroll_activate(struct wlp_wss *, struct wlp_uuid *, + struct uwb_dev_addr *); +extern ssize_t wlp_discover(struct wlp *); + +extern int wlp_enroll_neighbor(struct wlp *, struct wlp_neighbor_e *, + struct wlp_wss *, struct wlp_uuid *); +extern int wlp_wss_is_active(struct wlp *, struct wlp_wss *, + struct uwb_dev_addr *); + +struct wlp_assoc_conn_ctx { + struct work_struct ws; + struct wlp *wlp; + struct sk_buff *skb; + struct wlp_eda_node eda_entry; +}; + + +extern int wlp_wss_connect_prep(struct wlp *, struct wlp_eda_node *, void *); +extern int wlp_wss_send_copy(struct wlp *, struct wlp_eda_node *, void *); + + +/* Message handling */ +struct wlp_assoc_frame_ctx { + struct work_struct ws; + struct wlp *wlp; + struct sk_buff *skb; + struct uwb_dev_addr src; +}; + +extern int wlp_wss_prep_hdr(struct wlp *, struct wlp_eda_node *, void *); +extern void wlp_handle_d1_frame(struct work_struct *); +extern int wlp_parse_d2_frame_to_cache(struct wlp *, struct sk_buff *, + struct wlp_neighbor_e *); +extern int wlp_parse_d2_frame_to_enroll(struct wlp_wss *, struct sk_buff *, + struct wlp_neighbor_e *, + struct wlp_uuid *); +extern void wlp_handle_c1_frame(struct work_struct *); +extern void wlp_handle_c3_frame(struct work_struct *); +extern int wlp_parse_c3c4_frame(struct wlp *, struct sk_buff *, + struct wlp_uuid *, u8 *, + struct uwb_mac_addr *); +extern int wlp_parse_f0(struct wlp *, struct sk_buff *); +extern int wlp_send_assoc_frame(struct wlp *, struct wlp_wss *, + struct uwb_dev_addr *, enum wlp_assoc_type); +extern ssize_t wlp_get_version(struct wlp *, struct wlp_attr_version *, + u8 *, ssize_t); +extern ssize_t wlp_get_wssid(struct wlp *, struct wlp_attr_wssid *, + struct wlp_uuid *, ssize_t); +extern int __wlp_alloc_device_info(struct wlp *); +extern int __wlp_setup_device_info(struct wlp *); + +extern struct wlp_wss_attribute wss_attribute_properties; +extern struct wlp_wss_attribute wss_attribute_members; +extern struct wlp_wss_attribute wss_attribute_state; + +static inline +size_t wlp_wss_uuid_print(char *buf, size_t bufsize, struct wlp_uuid *uuid) +{ + size_t result; + + result = scnprintf(buf, bufsize, + "%02x:%02x:%02x:%02x:%02x:%02x:" + "%02x:%02x:%02x:%02x:%02x:%02x:" + "%02x:%02x:%02x:%02x", + uuid->data[0], uuid->data[1], + uuid->data[2], uuid->data[3], + uuid->data[4], uuid->data[5], + uuid->data[6], uuid->data[7], + uuid->data[8], uuid->data[9], + uuid->data[10], uuid->data[11], + uuid->data[12], uuid->data[13], + uuid->data[14], uuid->data[15]); + return result; +} + +/** + * FIXME: How should a nonce be displayed? + */ +static inline +size_t wlp_wss_nonce_print(char *buf, size_t bufsize, struct wlp_nonce *nonce) +{ + size_t result; + + result = scnprintf(buf, bufsize, + "%02x %02x %02x %02x %02x %02x " + "%02x %02x %02x %02x %02x %02x " + "%02x %02x %02x %02x", + nonce->data[0], nonce->data[1], + nonce->data[2], nonce->data[3], + nonce->data[4], nonce->data[5], + nonce->data[6], nonce->data[7], + nonce->data[8], nonce->data[9], + nonce->data[10], nonce->data[11], + nonce->data[12], nonce->data[13], + nonce->data[14], nonce->data[15]); + return result; +} + + +static inline +void wlp_session_cb(struct wlp *wlp) +{ + struct completion *completion = wlp->session->cb_priv; + complete(completion); +} + +static inline +int wlp_uuid_is_set(struct wlp_uuid *uuid) +{ + struct wlp_uuid zero_uuid = { .data = { 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00} }; + + if (!memcmp(uuid, &zero_uuid, sizeof(*uuid))) + return 0; + return 1; +} + +#endif /* __WLP_INTERNAL_H__ */ diff --git a/drivers/uwb/wlp/wlp-lc.c b/drivers/uwb/wlp/wlp-lc.c new file mode 100644 index 000000000000..0bc636c021f4 --- /dev/null +++ b/drivers/uwb/wlp/wlp-lc.c @@ -0,0 +1,572 @@ +/* + * WiMedia Logical Link Control Protocol (WLP) + * + * Copyright (C) 2005-2006 Intel Corporation + * Reinette Chatre <reinette.chatre@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + */ + +#include <linux/wlp.h> +#define D_LOCAL 6 +#include <linux/uwb/debug.h> +#include "wlp-internal.h" + + +static +void wlp_neighbor_init(struct wlp_neighbor_e *neighbor) +{ + INIT_LIST_HEAD(&neighbor->wssid); +} + +/** + * Create area for device information storage + * + * wlp->mutex must be held + */ +int __wlp_alloc_device_info(struct wlp *wlp) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + BUG_ON(wlp->dev_info != NULL); + wlp->dev_info = kzalloc(sizeof(struct wlp_device_info), GFP_KERNEL); + if (wlp->dev_info == NULL) { + dev_err(dev, "WLP: Unable to allocate memory for " + "device information.\n"); + return -ENOMEM; + } + return 0; +} + + +/** + * Fill in device information using function provided by driver + * + * wlp->mutex must be held + */ +static +void __wlp_fill_device_info(struct wlp *wlp) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + + BUG_ON(wlp->fill_device_info == NULL); + d_printf(6, dev, "Retrieving device information " + "from device driver.\n"); + wlp->fill_device_info(wlp, wlp->dev_info); +} + +/** + * Setup device information + * + * Allocate area for device information and populate it. + * + * wlp->mutex must be held + */ +int __wlp_setup_device_info(struct wlp *wlp) +{ + int result; + struct device *dev = &wlp->rc->uwb_dev.dev; + + result = __wlp_alloc_device_info(wlp); + if (result < 0) { + dev_err(dev, "WLP: Unable to allocate area for " + "device information.\n"); + return result; + } + __wlp_fill_device_info(wlp); + return 0; +} + +/** + * Remove information about neighbor stored temporarily + * + * Information learned during discovey should only be stored when the + * device enrolls in the neighbor's WSS. We do need to store this + * information temporarily in order to present it to the user. + * + * We are only interested in keeping neighbor WSS information if that + * neighbor is accepting enrollment. + * + * should be called with wlp->nbmutex held + */ +void wlp_remove_neighbor_tmp_info(struct wlp_neighbor_e *neighbor) +{ + struct wlp_wssid_e *wssid_e, *next; + u8 keep; + if (!list_empty(&neighbor->wssid)) { + list_for_each_entry_safe(wssid_e, next, &neighbor->wssid, + node) { + if (wssid_e->info != NULL) { + keep = wssid_e->info->accept_enroll; + kfree(wssid_e->info); + wssid_e->info = NULL; + if (!keep) { + list_del(&wssid_e->node); + kfree(wssid_e); + } + } + } + } + if (neighbor->info != NULL) { + kfree(neighbor->info); + neighbor->info = NULL; + } +} + +/** + * Populate WLP neighborhood cache with neighbor information + * + * A new neighbor is found. If it is discoverable then we add it to the + * neighborhood cache. + * + */ +static +int wlp_add_neighbor(struct wlp *wlp, struct uwb_dev *dev) +{ + int result = 0; + int discoverable; + struct wlp_neighbor_e *neighbor; + + d_fnstart(6, &dev->dev, "uwb %p \n", dev); + d_printf(6, &dev->dev, "Found neighbor device %02x:%02x \n", + dev->dev_addr.data[1], dev->dev_addr.data[0]); + /** + * FIXME: + * Use contents of WLP IE found in beacon cache to determine if + * neighbor is discoverable. + * The device does not support WLP IE yet so this still needs to be + * done. Until then we assume all devices are discoverable. + */ + discoverable = 1; /* will be changed when FIXME disappears */ + if (discoverable) { + /* Add neighbor to cache for discovery */ + neighbor = kzalloc(sizeof(*neighbor), GFP_KERNEL); + if (neighbor == NULL) { + dev_err(&dev->dev, "Unable to create memory for " + "new neighbor. \n"); + result = -ENOMEM; + goto error_no_mem; + } + wlp_neighbor_init(neighbor); + uwb_dev_get(dev); + neighbor->uwb_dev = dev; + list_add(&neighbor->node, &wlp->neighbors); + } +error_no_mem: + d_fnend(6, &dev->dev, "uwb %p, result = %d \n", dev, result); + return result; +} + +/** + * Remove one neighbor from cache + */ +static +void __wlp_neighbor_release(struct wlp_neighbor_e *neighbor) +{ + struct wlp_wssid_e *wssid_e, *next_wssid_e; + + list_for_each_entry_safe(wssid_e, next_wssid_e, + &neighbor->wssid, node) { + list_del(&wssid_e->node); + kfree(wssid_e); + } + uwb_dev_put(neighbor->uwb_dev); + list_del(&neighbor->node); + kfree(neighbor); +} + +/** + * Clear entire neighborhood cache. + */ +static +void __wlp_neighbors_release(struct wlp *wlp) +{ + struct wlp_neighbor_e *neighbor, *next; + if (list_empty(&wlp->neighbors)) + return; + list_for_each_entry_safe(neighbor, next, &wlp->neighbors, node) { + __wlp_neighbor_release(neighbor); + } +} + +static +void wlp_neighbors_release(struct wlp *wlp) +{ + mutex_lock(&wlp->nbmutex); + __wlp_neighbors_release(wlp); + mutex_unlock(&wlp->nbmutex); +} + + + +/** + * Send D1 message to neighbor, receive D2 message + * + * @neighbor: neighbor to which D1 message will be sent + * @wss: if not NULL, it is an enrollment request for this WSS + * @wssid: if wss not NULL, this is the wssid of the WSS in which we + * want to enroll + * + * A D1/D2 exchange is done for one of two reasons: discovery or + * enrollment. If done for discovery the D1 message is sent to the neighbor + * and the contents of the D2 response is stored in a temporary cache. + * If done for enrollment the @wss and @wssid are provided also. In this + * case the D1 message is sent to the neighbor, the D2 response is parsed + * for enrollment of the WSS with wssid. + * + * &wss->mutex is held + */ +static +int wlp_d1d2_exchange(struct wlp *wlp, struct wlp_neighbor_e *neighbor, + struct wlp_wss *wss, struct wlp_uuid *wssid) +{ + int result; + struct device *dev = &wlp->rc->uwb_dev.dev; + DECLARE_COMPLETION_ONSTACK(completion); + struct wlp_session session; + struct sk_buff *skb; + struct wlp_frame_assoc *resp; + struct uwb_dev_addr *dev_addr = &neighbor->uwb_dev->dev_addr; + + mutex_lock(&wlp->mutex); + if (!wlp_uuid_is_set(&wlp->uuid)) { + dev_err(dev, "WLP: UUID is not set. Set via sysfs to " + "proceed.\n"); + result = -ENXIO; + goto out; + } + /* Send D1 association frame */ + result = wlp_send_assoc_frame(wlp, wss, dev_addr, WLP_ASSOC_D1); + if (result < 0) { + dev_err(dev, "Unable to send D1 frame to neighbor " + "%02x:%02x (%d)\n", dev_addr->data[1], + dev_addr->data[0], result); + d_printf(6, dev, "Add placeholders into buffer next to " + "neighbor information we have (dev address).\n"); + goto out; + } + /* Create session, wait for response */ + session.exp_message = WLP_ASSOC_D2; + session.cb = wlp_session_cb; + session.cb_priv = &completion; + session.neighbor_addr = *dev_addr; + BUG_ON(wlp->session != NULL); + wlp->session = &session; + /* Wait for D2/F0 frame */ + result = wait_for_completion_interruptible_timeout(&completion, + WLP_PER_MSG_TIMEOUT * HZ); + if (result == 0) { + result = -ETIMEDOUT; + dev_err(dev, "Timeout while sending D1 to neighbor " + "%02x:%02x.\n", dev_addr->data[1], + dev_addr->data[0]); + goto error_session; + } + if (result < 0) { + dev_err(dev, "Unable to discover/enroll neighbor %02x:%02x.\n", + dev_addr->data[1], dev_addr->data[0]); + goto error_session; + } + /* Parse message in session->data: it will be either D2 or F0 */ + skb = session.data; + resp = (void *) skb->data; + d_printf(6, dev, "Received response to D1 frame. \n"); + d_dump(6, dev, skb->data, skb->len > 72 ? 72 : skb->len); + + if (resp->type == WLP_ASSOC_F0) { + result = wlp_parse_f0(wlp, skb); + if (result < 0) + dev_err(dev, "WLP: Unable to parse F0 from neighbor " + "%02x:%02x.\n", dev_addr->data[1], + dev_addr->data[0]); + result = -EINVAL; + goto error_resp_parse; + } + if (wss == NULL) { + /* Discovery */ + result = wlp_parse_d2_frame_to_cache(wlp, skb, neighbor); + if (result < 0) { + dev_err(dev, "WLP: Unable to parse D2 message from " + "neighbor %02x:%02x for discovery.\n", + dev_addr->data[1], dev_addr->data[0]); + goto error_resp_parse; + } + } else { + /* Enrollment */ + result = wlp_parse_d2_frame_to_enroll(wss, skb, neighbor, + wssid); + if (result < 0) { + dev_err(dev, "WLP: Unable to parse D2 message from " + "neighbor %02x:%02x for enrollment.\n", + dev_addr->data[1], dev_addr->data[0]); + goto error_resp_parse; + } + } +error_resp_parse: + kfree_skb(skb); +error_session: + wlp->session = NULL; +out: + mutex_unlock(&wlp->mutex); + return result; +} + +/** + * Enroll into WSS of provided WSSID by using neighbor as registrar + * + * &wss->mutex is held + */ +int wlp_enroll_neighbor(struct wlp *wlp, struct wlp_neighbor_e *neighbor, + struct wlp_wss *wss, struct wlp_uuid *wssid) +{ + int result = 0; + struct device *dev = &wlp->rc->uwb_dev.dev; + char buf[WLP_WSS_UUID_STRSIZE]; + struct uwb_dev_addr *dev_addr = &neighbor->uwb_dev->dev_addr; + wlp_wss_uuid_print(buf, sizeof(buf), wssid); + d_fnstart(6, dev, "wlp %p, neighbor %p, wss %p, wssid %p (%s)\n", + wlp, neighbor, wss, wssid, buf); + d_printf(6, dev, "Complete me.\n"); + result = wlp_d1d2_exchange(wlp, neighbor, wss, wssid); + if (result < 0) { + dev_err(dev, "WLP: D1/D2 message exchange for enrollment " + "failed. result = %d \n", result); + goto out; + } + if (wss->state != WLP_WSS_STATE_PART_ENROLLED) { + dev_err(dev, "WLP: Unable to enroll into WSS %s using " + "neighbor %02x:%02x. \n", buf, + dev_addr->data[1], dev_addr->data[0]); + result = -EINVAL; + goto out; + } + if (wss->secure_status == WLP_WSS_SECURE) { + dev_err(dev, "FIXME: need to complete secure enrollment.\n"); + result = -EINVAL; + goto error; + } else { + wss->state = WLP_WSS_STATE_ENROLLED; + d_printf(2, dev, "WLP: Success Enrollment into unsecure WSS " + "%s using neighbor %02x:%02x. \n", buf, + dev_addr->data[1], dev_addr->data[0]); + } + + d_fnend(6, dev, "wlp %p, neighbor %p, wss %p, wssid %p (%s)\n", + wlp, neighbor, wss, wssid, buf); +out: + return result; +error: + wlp_wss_reset(wss); + return result; +} + +/** + * Discover WSS information of neighbor's active WSS + */ +static +int wlp_discover_neighbor(struct wlp *wlp, + struct wlp_neighbor_e *neighbor) +{ + return wlp_d1d2_exchange(wlp, neighbor, NULL, NULL); +} + + +/** + * Each neighbor in the neighborhood cache is discoverable. Discover it. + * + * Discovery is done through sending of D1 association frame and parsing + * the D2 association frame response. Only wssid from D2 will be included + * in neighbor cache, rest is just displayed to user and forgotten. + * + * The discovery is not done in parallel. This is simple and enables us to + * maintain only one association context. + * + * The discovery of one neighbor does not affect the other, but if the + * discovery of a neighbor fails it is removed from the neighborhood cache. + */ +static +int wlp_discover_all_neighbors(struct wlp *wlp) +{ + int result = 0; + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_neighbor_e *neighbor, *next; + + list_for_each_entry_safe(neighbor, next, &wlp->neighbors, node) { + result = wlp_discover_neighbor(wlp, neighbor); + if (result < 0) { + dev_err(dev, "WLP: Unable to discover neighbor " + "%02x:%02x, removing from neighborhood. \n", + neighbor->uwb_dev->dev_addr.data[1], + neighbor->uwb_dev->dev_addr.data[0]); + __wlp_neighbor_release(neighbor); + } + } + return result; +} + +static int wlp_add_neighbor_helper(struct device *dev, void *priv) +{ + struct wlp *wlp = priv; + struct uwb_dev *uwb_dev = to_uwb_dev(dev); + + return wlp_add_neighbor(wlp, uwb_dev); +} + +/** + * Discover WLP neighborhood + * + * Will send D1 association frame to all devices in beacon group that have + * discoverable bit set in WLP IE. D2 frames will be received, information + * displayed to user in @buf. Partial information (from D2 association + * frame) will be cached to assist with future association + * requests. + * + * The discovery of the WLP neighborhood is triggered by the user. This + * should occur infrequently and we thus free current cache and re-allocate + * memory if needed. + * + * If one neighbor fails during initial discovery (determining if it is a + * neighbor or not), we fail all - note that interaction with neighbor has + * not occured at this point so if a failure occurs we know something went wrong + * locally. We thus undo everything. + */ +ssize_t wlp_discover(struct wlp *wlp) +{ + int result = 0; + struct device *dev = &wlp->rc->uwb_dev.dev; + + d_fnstart(6, dev, "wlp %p \n", wlp); + mutex_lock(&wlp->nbmutex); + /* Clear current neighborhood cache. */ + __wlp_neighbors_release(wlp); + /* Determine which devices in neighborhood. Repopulate cache. */ + result = uwb_dev_for_each(wlp->rc, wlp_add_neighbor_helper, wlp); + if (result < 0) { + /* May have partial neighbor information, release all. */ + __wlp_neighbors_release(wlp); + goto error_dev_for_each; + } + /* Discover the properties of devices in neighborhood. */ + result = wlp_discover_all_neighbors(wlp); + /* In case of failure we still print our partial results. */ + if (result < 0) { + dev_err(dev, "Unable to fully discover neighborhood. \n"); + result = 0; + } +error_dev_for_each: + mutex_unlock(&wlp->nbmutex); + d_fnend(6, dev, "wlp %p \n", wlp); + return result; +} + +/** + * Handle events from UWB stack + * + * We handle events conservatively. If a neighbor goes off the air we + * remove it from the neighborhood. If an association process is in + * progress this function will block waiting for the nbmutex to become + * free. The association process will thus be allowed to complete before it + * is removed. + */ +static +void wlp_uwb_notifs_cb(void *_wlp, struct uwb_dev *uwb_dev, + enum uwb_notifs event) +{ + struct wlp *wlp = _wlp; + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_neighbor_e *neighbor, *next; + int result; + switch (event) { + case UWB_NOTIF_ONAIR: + d_printf(6, dev, "UWB device %02x:%02x is onair\n", + uwb_dev->dev_addr.data[1], + uwb_dev->dev_addr.data[0]); + result = wlp_eda_create_node(&wlp->eda, + uwb_dev->mac_addr.data, + &uwb_dev->dev_addr); + if (result < 0) + dev_err(dev, "WLP: Unable to add new neighbor " + "%02x:%02x to EDA cache.\n", + uwb_dev->dev_addr.data[1], + uwb_dev->dev_addr.data[0]); + break; + case UWB_NOTIF_OFFAIR: + d_printf(6, dev, "UWB device %02x:%02x is offair\n", + uwb_dev->dev_addr.data[1], + uwb_dev->dev_addr.data[0]); + wlp_eda_rm_node(&wlp->eda, &uwb_dev->dev_addr); + mutex_lock(&wlp->nbmutex); + list_for_each_entry_safe(neighbor, next, &wlp->neighbors, + node) { + if (neighbor->uwb_dev == uwb_dev) { + d_printf(6, dev, "Removing device from " + "neighborhood.\n"); + __wlp_neighbor_release(neighbor); + } + } + mutex_unlock(&wlp->nbmutex); + break; + default: + dev_err(dev, "don't know how to handle event %d from uwb\n", + event); + } +} + +int wlp_setup(struct wlp *wlp, struct uwb_rc *rc) +{ + struct device *dev = &rc->uwb_dev.dev; + int result; + + d_fnstart(6, dev, "wlp %p\n", wlp); + BUG_ON(wlp->fill_device_info == NULL); + BUG_ON(wlp->xmit_frame == NULL); + BUG_ON(wlp->stop_queue == NULL); + BUG_ON(wlp->start_queue == NULL); + wlp->rc = rc; + wlp_eda_init(&wlp->eda);/* Set up address cache */ + wlp->uwb_notifs_handler.cb = wlp_uwb_notifs_cb; + wlp->uwb_notifs_handler.data = wlp; + uwb_notifs_register(rc, &wlp->uwb_notifs_handler); + + uwb_pal_init(&wlp->pal); + result = uwb_pal_register(rc, &wlp->pal); + if (result < 0) + uwb_notifs_deregister(wlp->rc, &wlp->uwb_notifs_handler); + + d_fnend(6, dev, "wlp %p, result = %d\n", wlp, result); + return result; +} +EXPORT_SYMBOL_GPL(wlp_setup); + +void wlp_remove(struct wlp *wlp) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + d_fnstart(6, dev, "wlp %p\n", wlp); + wlp_neighbors_release(wlp); + uwb_pal_unregister(wlp->rc, &wlp->pal); + uwb_notifs_deregister(wlp->rc, &wlp->uwb_notifs_handler); + wlp_eda_release(&wlp->eda); + mutex_lock(&wlp->mutex); + if (wlp->dev_info != NULL) + kfree(wlp->dev_info); + mutex_unlock(&wlp->mutex); + wlp->rc = NULL; + /* We have to use NULL here because this function can be called + * when the device disappeared. */ + d_fnend(6, NULL, "wlp %p\n", wlp); +} +EXPORT_SYMBOL_GPL(wlp_remove); diff --git a/drivers/uwb/wlp/wss-lc.c b/drivers/uwb/wlp/wss-lc.c new file mode 100644 index 000000000000..5ac1a38fdd43 --- /dev/null +++ b/drivers/uwb/wlp/wss-lc.c @@ -0,0 +1,1056 @@ +/* + * WiMedia Logical Link Control Protocol (WLP) + * + * Copyright (C) 2007 Intel Corporation + * Reinette Chatre <reinette.chatre@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * Implementation of the WLP association protocol. + * + * FIXME: Docs + * + * A UWB network interface will configure a WSS through wlp_wss_setup() after + * the interface has been assigned a MAC address, typically after + * "ifconfig" has been called. When the interface goes down it should call + * wlp_wss_remove(). + * + * When the WSS is ready for use the user interacts via sysfs to create, + * discover, and activate WSS. + * + * wlp_wss_enroll_activate() + * + * wlp_wss_create_activate() + * wlp_wss_set_wssid_hash() + * wlp_wss_comp_wssid_hash() + * wlp_wss_sel_bcast_addr() + * wlp_wss_sysfs_add() + * + * Called when no more references to WSS exist: + * wlp_wss_release() + * wlp_wss_reset() + */ + +#include <linux/etherdevice.h> /* for is_valid_ether_addr */ +#include <linux/skbuff.h> +#include <linux/wlp.h> +#define D_LOCAL 5 +#include <linux/uwb/debug.h> +#include "wlp-internal.h" + + +size_t wlp_wss_key_print(char *buf, size_t bufsize, u8 *key) +{ + size_t result; + + result = scnprintf(buf, bufsize, + "%02x %02x %02x %02x %02x %02x " + "%02x %02x %02x %02x %02x %02x " + "%02x %02x %02x %02x", + key[0], key[1], key[2], key[3], + key[4], key[5], key[6], key[7], + key[8], key[9], key[10], key[11], + key[12], key[13], key[14], key[15]); + return result; +} + +/** + * Compute WSSID hash + * WLP Draft 0.99 [7.2.1] + * + * The WSSID hash for a WSSID is the result of an octet-wise exclusive-OR + * of all octets in the WSSID. + */ +static +u8 wlp_wss_comp_wssid_hash(struct wlp_uuid *wssid) +{ + return wssid->data[0] ^ wssid->data[1] ^ wssid->data[2] + ^ wssid->data[3] ^ wssid->data[4] ^ wssid->data[5] + ^ wssid->data[6] ^ wssid->data[7] ^ wssid->data[8] + ^ wssid->data[9] ^ wssid->data[10] ^ wssid->data[11] + ^ wssid->data[12] ^ wssid->data[13] ^ wssid->data[14] + ^ wssid->data[15]; +} + +/** + * Select a multicast EUI-48 for the WSS broadcast address. + * WLP Draft 0.99 [7.2.1] + * + * Selected based on the WiMedia Alliance OUI, 00-13-88, within the WLP + * range, [01-13-88-00-01-00, 01-13-88-00-01-FF] inclusive. + * + * This address is currently hardcoded. + * FIXME? + */ +static +struct uwb_mac_addr wlp_wss_sel_bcast_addr(struct wlp_wss *wss) +{ + struct uwb_mac_addr bcast = { + .data = { 0x01, 0x13, 0x88, 0x00, 0x01, 0x00 } + }; + return bcast; +} + +/** + * Clear the contents of the WSS structure - all except kobj, mutex, virtual + * + * We do not want to reinitialize - the internal kobj should not change as + * it still points to the parent received during setup. The mutex should + * remain also. We thus just reset values individually. + * The virutal address assigned to WSS will remain the same for the + * lifetime of the WSS. We only reset the fields that can change during its + * lifetime. + */ +void wlp_wss_reset(struct wlp_wss *wss) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + d_fnstart(5, dev, "wss (%p) \n", wss); + memset(&wss->wssid, 0, sizeof(wss->wssid)); + wss->hash = 0; + memset(&wss->name[0], 0, sizeof(wss->name)); + memset(&wss->bcast, 0, sizeof(wss->bcast)); + wss->secure_status = WLP_WSS_UNSECURE; + memset(&wss->master_key[0], 0, sizeof(wss->master_key)); + wss->tag = 0; + wss->state = WLP_WSS_STATE_NONE; + d_fnend(5, dev, "wss (%p) \n", wss); +} + +/** + * Create sysfs infrastructure for WSS + * + * The WSS is configured to have the interface as parent (see wlp_wss_setup()) + * a new sysfs directory that includes wssid as its name is created in the + * interface's sysfs directory. The group of files interacting with WSS are + * created also. + */ +static +int wlp_wss_sysfs_add(struct wlp_wss *wss, char *wssid_str) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + int result; + + d_fnstart(5, dev, "wss (%p), wssid: %s\n", wss, wssid_str); + result = kobject_set_name(&wss->kobj, "wss-%s", wssid_str); + if (result < 0) + return result; + wss->kobj.ktype = &wss_ktype; + result = kobject_init_and_add(&wss->kobj, + &wss_ktype, wss->kobj.parent, "wlp"); + if (result < 0) { + dev_err(dev, "WLP: Cannot register WSS kobject.\n"); + goto error_kobject_register; + } + result = sysfs_create_group(&wss->kobj, &wss_attr_group); + if (result < 0) { + dev_err(dev, "WLP: Cannot register WSS attributes: %d\n", + result); + goto error_sysfs_create_group; + } + d_fnend(5, dev, "Completed. result = %d \n", result); + return 0; +error_sysfs_create_group: + + kobject_put(&wss->kobj); /* will free name if needed */ + return result; +error_kobject_register: + kfree(wss->kobj.name); + wss->kobj.name = NULL; + wss->kobj.ktype = NULL; + return result; +} + + +/** + * Release WSS + * + * No more references exist to this WSS. We should undo everything that was + * done in wlp_wss_create_activate() except removing the group. The group + * is not removed because an object can be unregistered before the group is + * created. We also undo any additional operations on the WSS after this + * (addition of members). + * + * If memory was allocated for the kobject's name then it will + * be freed by the kobject system during this time. + * + * The EDA cache is removed and reinitilized when the WSS is removed. We + * thus loose knowledge of members of this WSS at that time and need not do + * it here. + */ +void wlp_wss_release(struct kobject *kobj) +{ + struct wlp_wss *wss = container_of(kobj, struct wlp_wss, kobj); + + wlp_wss_reset(wss); +} + +/** + * Enroll into a WSS using provided neighbor as registrar + * + * First search the neighborhood information to learn which neighbor is + * referred to, next proceed with enrollment. + * + * &wss->mutex is held + */ +static +int wlp_wss_enroll_target(struct wlp_wss *wss, struct wlp_uuid *wssid, + struct uwb_dev_addr *dest) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_neighbor_e *neighbor; + char buf[WLP_WSS_UUID_STRSIZE]; + int result = -ENXIO; + struct uwb_dev_addr *dev_addr; + + wlp_wss_uuid_print(buf, sizeof(buf), wssid); + d_fnstart(5, dev, "wss %p, wssid %s, registrar %02x:%02x \n", + wss, buf, dest->data[1], dest->data[0]); + mutex_lock(&wlp->nbmutex); + list_for_each_entry(neighbor, &wlp->neighbors, node) { + dev_addr = &neighbor->uwb_dev->dev_addr; + if (!memcmp(dest, dev_addr, sizeof(*dest))) { + d_printf(5, dev, "Neighbor %02x:%02x is valid, " + "enrolling. \n", + dev_addr->data[1], dev_addr->data[0]); + result = wlp_enroll_neighbor(wlp, neighbor, wss, + wssid); + break; + } + } + if (result == -ENXIO) + dev_err(dev, "WLP: Cannot find neighbor %02x:%02x. \n", + dest->data[1], dest->data[0]); + mutex_unlock(&wlp->nbmutex); + d_fnend(5, dev, "wss %p, wssid %s, registrar %02x:%02x, result %d \n", + wss, buf, dest->data[1], dest->data[0], result); + return result; +} + +/** + * Enroll into a WSS previously discovered + * + * User provides WSSID of WSS, search for neighbor that has this WSS + * activated and attempt to enroll. + * + * &wss->mutex is held + */ +static +int wlp_wss_enroll_discovered(struct wlp_wss *wss, struct wlp_uuid *wssid) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + struct wlp_neighbor_e *neighbor; + struct wlp_wssid_e *wssid_e; + char buf[WLP_WSS_UUID_STRSIZE]; + int result = -ENXIO; + + wlp_wss_uuid_print(buf, sizeof(buf), wssid); + d_fnstart(5, dev, "wss %p, wssid %s \n", wss, buf); + mutex_lock(&wlp->nbmutex); + list_for_each_entry(neighbor, &wlp->neighbors, node) { + list_for_each_entry(wssid_e, &neighbor->wssid, node) { + if (!memcmp(wssid, &wssid_e->wssid, sizeof(*wssid))) { + d_printf(5, dev, "Found WSSID %s in neighbor " + "%02x:%02x cache. \n", buf, + neighbor->uwb_dev->dev_addr.data[1], + neighbor->uwb_dev->dev_addr.data[0]); + result = wlp_enroll_neighbor(wlp, neighbor, + wss, wssid); + if (result == 0) /* enrollment success */ + goto out; + break; + } + } + } +out: + if (result == -ENXIO) + dev_err(dev, "WLP: Cannot find WSSID %s in cache. \n", buf); + mutex_unlock(&wlp->nbmutex); + d_fnend(5, dev, "wss %p, wssid %s, result %d \n", wss, buf, result); + return result; +} + +/** + * Enroll into WSS with provided WSSID, registrar may be provided + * + * @wss: out WSS that will be enrolled + * @wssid: wssid of neighboring WSS that we want to enroll in + * @devaddr: registrar can be specified, will be broadcast (ff:ff) if any + * neighbor can be used as registrar. + * + * &wss->mutex is held + */ +static +int wlp_wss_enroll(struct wlp_wss *wss, struct wlp_uuid *wssid, + struct uwb_dev_addr *devaddr) +{ + int result; + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + char buf[WLP_WSS_UUID_STRSIZE]; + struct uwb_dev_addr bcast = {.data = {0xff, 0xff} }; + + wlp_wss_uuid_print(buf, sizeof(buf), wssid); + if (wss->state != WLP_WSS_STATE_NONE) { + dev_err(dev, "WLP: Already enrolled in WSS %s.\n", buf); + result = -EEXIST; + goto error; + } + if (!memcmp(&bcast, devaddr, sizeof(bcast))) { + d_printf(5, dev, "Request to enroll in discovered WSS " + "with WSSID %s \n", buf); + result = wlp_wss_enroll_discovered(wss, wssid); + } else { + d_printf(5, dev, "Request to enroll in WSSID %s with " + "registrar %02x:%02x\n", buf, devaddr->data[1], + devaddr->data[0]); + result = wlp_wss_enroll_target(wss, wssid, devaddr); + } + if (result < 0) { + dev_err(dev, "WLP: Unable to enroll into WSS %s, result %d \n", + buf, result); + goto error; + } + d_printf(2, dev, "Successfully enrolled into WSS %s \n", buf); + result = wlp_wss_sysfs_add(wss, buf); + if (result < 0) { + dev_err(dev, "WLP: Unable to set up sysfs for WSS kobject.\n"); + wlp_wss_reset(wss); + } +error: + return result; + +} + +/** + * Activate given WSS + * + * Prior to activation a WSS must be enrolled. To activate a WSS a device + * includes the WSS hash in the WLP IE in its beacon in each superframe. + * WLP 0.99 [7.2.5]. + * + * The WSS tag is also computed at this time. We only support one activated + * WSS so we can use the hash as a tag - there will never be a conflict. + * + * We currently only support one activated WSS so only one WSS hash is + * included in the WLP IE. + */ +static +int wlp_wss_activate(struct wlp_wss *wss) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + struct uwb_rc *uwb_rc = wlp->rc; + int result; + struct { + struct wlp_ie wlp_ie; + u8 hash; /* only include one hash */ + } ie_data; + + d_fnstart(5, dev, "Activating WSS %p. \n", wss); + BUG_ON(wss->state != WLP_WSS_STATE_ENROLLED); + wss->hash = wlp_wss_comp_wssid_hash(&wss->wssid); + wss->tag = wss->hash; + memset(&ie_data, 0, sizeof(ie_data)); + ie_data.wlp_ie.hdr.element_id = UWB_IE_WLP; + ie_data.wlp_ie.hdr.length = sizeof(ie_data) - sizeof(struct uwb_ie_hdr); + ie_data.wlp_ie.hash_length = sizeof(ie_data.hash); + ie_data.hash = wss->hash; + ie_data.wlp_ie.capabilities = cpu_to_le16(ie_data.wlp_ie.capabilities); + result = uwb_rc_ie_add(uwb_rc, &ie_data.wlp_ie.hdr, + sizeof(ie_data)); + if (result < 0) { + dev_err(dev, "WLP: Unable to add WLP IE to beacon. " + "result = %d.\n", result); + goto error_wlp_ie; + } + wss->state = WLP_WSS_STATE_ACTIVE; + result = 0; +error_wlp_ie: + d_fnend(5, dev, "Activating WSS %p, result = %d \n", wss, result); + return result; +} + +/** + * Enroll in and activate WSS identified by provided WSSID + * + * The neighborhood cache should contain a list of all neighbors and the + * WSS they have activated. Based on that cache we search which neighbor we + * can perform the association process with. The user also has option to + * specify which neighbor it prefers as registrar. + * Successful enrollment is followed by activation. + * Successful activation will create the sysfs directory containing + * specific information regarding this WSS. + */ +int wlp_wss_enroll_activate(struct wlp_wss *wss, struct wlp_uuid *wssid, + struct uwb_dev_addr *devaddr) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = 0; + char buf[WLP_WSS_UUID_STRSIZE]; + + d_fnstart(5, dev, "Enrollment and activation requested. \n"); + mutex_lock(&wss->mutex); + result = wlp_wss_enroll(wss, wssid, devaddr); + if (result < 0) { + wlp_wss_uuid_print(buf, sizeof(buf), &wss->wssid); + dev_err(dev, "WLP: Enrollment into WSS %s failed.\n", buf); + goto error_enroll; + } + result = wlp_wss_activate(wss); + if (result < 0) { + dev_err(dev, "WLP: Unable to activate WSS. Undoing enrollment " + "result = %d \n", result); + /* Undo enrollment */ + wlp_wss_reset(wss); + goto error_activate; + } +error_activate: +error_enroll: + mutex_unlock(&wss->mutex); + d_fnend(5, dev, "Completed. result = %d \n", result); + return result; +} + +/** + * Create, enroll, and activate a new WSS + * + * @wssid: new wssid provided by user + * @name: WSS name requested by used. + * @sec_status: security status requested by user + * + * A user requested the creation of a new WSS. All operations are done + * locally. The new WSS will be stored locally, the hash will be included + * in the WLP IE, and the sysfs infrastructure for this WSS will be + * created. + */ +int wlp_wss_create_activate(struct wlp_wss *wss, struct wlp_uuid *wssid, + char *name, unsigned sec_status, unsigned accept) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = 0; + char buf[WLP_WSS_UUID_STRSIZE]; + d_fnstart(5, dev, "Request to create new WSS.\n"); + result = wlp_wss_uuid_print(buf, sizeof(buf), wssid); + d_printf(5, dev, "Request to create WSS: WSSID=%s, name=%s, " + "sec_status=%u, accepting enrollment=%u \n", + buf, name, sec_status, accept); + if (!mutex_trylock(&wss->mutex)) { + dev_err(dev, "WLP: WLP association session in progress.\n"); + return -EBUSY; + } + if (wss->state != WLP_WSS_STATE_NONE) { + dev_err(dev, "WLP: WSS already exists. Not creating new.\n"); + result = -EEXIST; + goto out; + } + if (wss->kobj.parent == NULL) { + dev_err(dev, "WLP: WSS parent not ready. Is network interface " + "up?\n"); + result = -ENXIO; + goto out; + } + if (sec_status == WLP_WSS_SECURE) { + dev_err(dev, "WLP: FIXME Creation of secure WSS not " + "supported yet.\n"); + result = -EINVAL; + goto out; + } + wss->wssid = *wssid; + memcpy(wss->name, name, sizeof(wss->name)); + wss->bcast = wlp_wss_sel_bcast_addr(wss); + wss->secure_status = sec_status; + wss->accept_enroll = accept; + /*wss->virtual_addr is initialized in call to wlp_wss_setup*/ + /* sysfs infrastructure */ + result = wlp_wss_sysfs_add(wss, buf); + if (result < 0) { + dev_err(dev, "Cannot set up sysfs for WSS kobject.\n"); + wlp_wss_reset(wss); + goto out; + } else + result = 0; + wss->state = WLP_WSS_STATE_ENROLLED; + result = wlp_wss_activate(wss); + if (result < 0) { + dev_err(dev, "WLP: Unable to activate WSS. Undoing " + "enrollment\n"); + wlp_wss_reset(wss); + goto out; + } + result = 0; +out: + mutex_unlock(&wss->mutex); + d_fnend(5, dev, "Completed. result = %d \n", result); + return result; +} + +/** + * Determine if neighbor has WSS activated + * + * @returns: 1 if neighbor has WSS activated, zero otherwise + * + * This can be done in two ways: + * - send a C1 frame, parse C2/F0 response + * - examine the WLP IE sent by the neighbor + * + * The WLP IE is not fully supported in hardware so we use the C1/C2 frame + * exchange to determine if a WSS is activated. Using the WLP IE should be + * faster and should be used when it becomes possible. + */ +int wlp_wss_is_active(struct wlp *wlp, struct wlp_wss *wss, + struct uwb_dev_addr *dev_addr) +{ + int result = 0; + struct device *dev = &wlp->rc->uwb_dev.dev; + char buf[WLP_WSS_UUID_STRSIZE]; + DECLARE_COMPLETION_ONSTACK(completion); + struct wlp_session session; + struct sk_buff *skb; + struct wlp_frame_assoc *resp; + struct wlp_uuid wssid; + + wlp_wss_uuid_print(buf, sizeof(buf), &wss->wssid); + d_fnstart(5, dev, "wlp %p, wss %p (wssid %s), neighbor %02x:%02x \n", + wlp, wss, buf, dev_addr->data[1], dev_addr->data[0]); + mutex_lock(&wlp->mutex); + /* Send C1 association frame */ + result = wlp_send_assoc_frame(wlp, wss, dev_addr, WLP_ASSOC_C1); + if (result < 0) { + dev_err(dev, "Unable to send C1 frame to neighbor " + "%02x:%02x (%d)\n", dev_addr->data[1], + dev_addr->data[0], result); + result = 0; + goto out; + } + /* Create session, wait for response */ + session.exp_message = WLP_ASSOC_C2; + session.cb = wlp_session_cb; + session.cb_priv = &completion; + session.neighbor_addr = *dev_addr; + BUG_ON(wlp->session != NULL); + wlp->session = &session; + /* Wait for C2/F0 frame */ + result = wait_for_completion_interruptible_timeout(&completion, + WLP_PER_MSG_TIMEOUT * HZ); + if (result == 0) { + dev_err(dev, "Timeout while sending C1 to neighbor " + "%02x:%02x.\n", dev_addr->data[1], + dev_addr->data[0]); + goto out; + } + if (result < 0) { + dev_err(dev, "Unable to send C1 to neighbor %02x:%02x.\n", + dev_addr->data[1], dev_addr->data[0]); + result = 0; + goto out; + } + /* Parse message in session->data: it will be either C2 or F0 */ + skb = session.data; + resp = (void *) skb->data; + d_printf(5, dev, "Received response to C1 frame. \n"); + d_dump(5, dev, skb->data, skb->len > 72 ? 72 : skb->len); + if (resp->type == WLP_ASSOC_F0) { + result = wlp_parse_f0(wlp, skb); + if (result < 0) + dev_err(dev, "WLP: unable to parse incoming F0 " + "frame from neighbor %02x:%02x.\n", + dev_addr->data[1], dev_addr->data[0]); + result = 0; + goto error_resp_parse; + } + /* WLP version and message type fields have already been parsed */ + result = wlp_get_wssid(wlp, (void *)resp + sizeof(*resp), &wssid, + skb->len - sizeof(*resp)); + if (result < 0) { + dev_err(dev, "WLP: unable to obtain WSSID from C2 frame.\n"); + result = 0; + goto error_resp_parse; + } + if (!memcmp(&wssid, &wss->wssid, sizeof(wssid))) { + d_printf(5, dev, "WSSID in C2 frame matches local " + "active WSS.\n"); + result = 1; + } else { + dev_err(dev, "WLP: Received a C2 frame without matching " + "WSSID.\n"); + result = 0; + } +error_resp_parse: + kfree_skb(skb); +out: + wlp->session = NULL; + mutex_unlock(&wlp->mutex); + d_fnend(5, dev, "wlp %p, wss %p (wssid %s), neighbor %02x:%02x \n", + wlp, wss, buf, dev_addr->data[1], dev_addr->data[0]); + return result; +} + +/** + * Activate connection with neighbor by updating EDA cache + * + * @wss: local WSS to which neighbor wants to connect + * @dev_addr: neighbor's address + * @wssid: neighbor's WSSID - must be same as our WSS's WSSID + * @tag: neighbor's WSS tag used to identify frames transmitted by it + * @virt_addr: neighbor's virtual EUI-48 + */ +static +int wlp_wss_activate_connection(struct wlp *wlp, struct wlp_wss *wss, + struct uwb_dev_addr *dev_addr, + struct wlp_uuid *wssid, u8 *tag, + struct uwb_mac_addr *virt_addr) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = 0; + char buf[WLP_WSS_UUID_STRSIZE]; + wlp_wss_uuid_print(buf, sizeof(buf), wssid); + d_fnstart(5, dev, "wlp %p, wss %p, wssid %s, tag %u, virtual " + "%02x:%02x:%02x:%02x:%02x:%02x \n", wlp, wss, buf, *tag, + virt_addr->data[0], virt_addr->data[1], virt_addr->data[2], + virt_addr->data[3], virt_addr->data[4], virt_addr->data[5]); + + if (!memcmp(wssid, &wss->wssid, sizeof(*wssid))) { + d_printf(5, dev, "WSSID from neighbor frame matches local " + "active WSS.\n"); + /* Update EDA cache */ + result = wlp_eda_update_node(&wlp->eda, dev_addr, wss, + (void *) virt_addr->data, *tag, + WLP_WSS_CONNECTED); + if (result < 0) + dev_err(dev, "WLP: Unable to update EDA cache " + "with new connected neighbor information.\n"); + } else { + dev_err(dev, "WLP: Neighbor does not have matching " + "WSSID.\n"); + result = -EINVAL; + } + + d_fnend(5, dev, "wlp %p, wss %p, wssid %s, tag %u, virtual " + "%02x:%02x:%02x:%02x:%02x:%02x, result = %d \n", + wlp, wss, buf, *tag, + virt_addr->data[0], virt_addr->data[1], virt_addr->data[2], + virt_addr->data[3], virt_addr->data[4], virt_addr->data[5], + result); + + return result; +} + +/** + * Connect to WSS neighbor + * + * Use C3/C4 exchange to determine if neighbor has WSS activated and + * retrieve the WSS tag and virtual EUI-48 of the neighbor. + */ +static +int wlp_wss_connect_neighbor(struct wlp *wlp, struct wlp_wss *wss, + struct uwb_dev_addr *dev_addr) +{ + int result; + struct device *dev = &wlp->rc->uwb_dev.dev; + char buf[WLP_WSS_UUID_STRSIZE]; + struct wlp_uuid wssid; + u8 tag; + struct uwb_mac_addr virt_addr; + DECLARE_COMPLETION_ONSTACK(completion); + struct wlp_session session; + struct wlp_frame_assoc *resp; + struct sk_buff *skb; + + wlp_wss_uuid_print(buf, sizeof(buf), &wss->wssid); + d_fnstart(5, dev, "wlp %p, wss %p (wssid %s), neighbor %02x:%02x \n", + wlp, wss, buf, dev_addr->data[1], dev_addr->data[0]); + mutex_lock(&wlp->mutex); + /* Send C3 association frame */ + result = wlp_send_assoc_frame(wlp, wss, dev_addr, WLP_ASSOC_C3); + if (result < 0) { + dev_err(dev, "Unable to send C3 frame to neighbor " + "%02x:%02x (%d)\n", dev_addr->data[1], + dev_addr->data[0], result); + goto out; + } + /* Create session, wait for response */ + session.exp_message = WLP_ASSOC_C4; + session.cb = wlp_session_cb; + session.cb_priv = &completion; + session.neighbor_addr = *dev_addr; + BUG_ON(wlp->session != NULL); + wlp->session = &session; + /* Wait for C4/F0 frame */ + result = wait_for_completion_interruptible_timeout(&completion, + WLP_PER_MSG_TIMEOUT * HZ); + if (result == 0) { + dev_err(dev, "Timeout while sending C3 to neighbor " + "%02x:%02x.\n", dev_addr->data[1], + dev_addr->data[0]); + result = -ETIMEDOUT; + goto out; + } + if (result < 0) { + dev_err(dev, "Unable to send C3 to neighbor %02x:%02x.\n", + dev_addr->data[1], dev_addr->data[0]); + goto out; + } + /* Parse message in session->data: it will be either C4 or F0 */ + skb = session.data; + resp = (void *) skb->data; + d_printf(5, dev, "Received response to C3 frame. \n"); + d_dump(5, dev, skb->data, skb->len > 72 ? 72 : skb->len); + if (resp->type == WLP_ASSOC_F0) { + result = wlp_parse_f0(wlp, skb); + if (result < 0) + dev_err(dev, "WLP: unable to parse incoming F0 " + "frame from neighbor %02x:%02x.\n", + dev_addr->data[1], dev_addr->data[0]); + result = -EINVAL; + goto error_resp_parse; + } + result = wlp_parse_c3c4_frame(wlp, skb, &wssid, &tag, &virt_addr); + if (result < 0) { + dev_err(dev, "WLP: Unable to parse C4 frame from neighbor.\n"); + goto error_resp_parse; + } + result = wlp_wss_activate_connection(wlp, wss, dev_addr, &wssid, &tag, + &virt_addr); + if (result < 0) { + dev_err(dev, "WLP: Unable to activate connection to " + "neighbor %02x:%02x.\n", dev_addr->data[1], + dev_addr->data[0]); + goto error_resp_parse; + } +error_resp_parse: + kfree_skb(skb); +out: + /* Record that we unsuccessfully tried to connect to this neighbor */ + if (result < 0) + wlp_eda_update_node_state(&wlp->eda, dev_addr, + WLP_WSS_CONNECT_FAILED); + wlp->session = NULL; + mutex_unlock(&wlp->mutex); + d_fnend(5, dev, "wlp %p, wss %p (wssid %s), neighbor %02x:%02x \n", + wlp, wss, buf, dev_addr->data[1], dev_addr->data[0]); + return result; +} + +/** + * Connect to neighbor with common WSS, send pending frame + * + * This function is scheduled when a frame is destined to a neighbor with + * which we do not have a connection. A copy of the EDA cache entry is + * provided - not the actual cache entry (because it is protected by a + * spinlock). + * + * First determine if neighbor has the same WSS activated, connect if it + * does. The C3/C4 exchange is dual purpose to determine if neighbor has + * WSS activated and proceed with the connection. + * + * The frame that triggered the connection setup is sent after connection + * setup. + * + * network queue is stopped - we need to restart when done + * + */ +static +void wlp_wss_connect_send(struct work_struct *ws) +{ + struct wlp_assoc_conn_ctx *conn_ctx = container_of(ws, + struct wlp_assoc_conn_ctx, + ws); + struct wlp *wlp = conn_ctx->wlp; + struct sk_buff *skb = conn_ctx->skb; + struct wlp_eda_node *eda_entry = &conn_ctx->eda_entry; + struct uwb_dev_addr *dev_addr = &eda_entry->dev_addr; + struct wlp_wss *wss = &wlp->wss; + int result; + struct device *dev = &wlp->rc->uwb_dev.dev; + char buf[WLP_WSS_UUID_STRSIZE]; + + mutex_lock(&wss->mutex); + wlp_wss_uuid_print(buf, sizeof(buf), &wss->wssid); + d_fnstart(5, dev, "wlp %p, wss %p (wssid %s), neighbor %02x:%02x \n", + wlp, wss, buf, dev_addr->data[1], dev_addr->data[0]); + if (wss->state < WLP_WSS_STATE_ACTIVE) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Attempting to connect with " + "WSS that is not active or connected.\n"); + dev_kfree_skb(skb); + goto out; + } + /* Establish connection - send C3 rcv C4 */ + result = wlp_wss_connect_neighbor(wlp, wss, dev_addr); + if (result < 0) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Unable to establish connection " + "with neighbor %02x:%02x.\n", + dev_addr->data[1], dev_addr->data[0]); + dev_kfree_skb(skb); + goto out; + } + /* EDA entry changed, update the local copy being used */ + result = wlp_copy_eda_node(&wlp->eda, dev_addr, eda_entry); + if (result < 0) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Cannot find EDA entry for " + "neighbor %02x:%02x \n", + dev_addr->data[1], dev_addr->data[0]); + } + result = wlp_wss_prep_hdr(wlp, eda_entry, skb); + if (result < 0) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Unable to prepare frame header for " + "transmission (neighbor %02x:%02x). \n", + dev_addr->data[1], dev_addr->data[0]); + dev_kfree_skb(skb); + goto out; + } + BUG_ON(wlp->xmit_frame == NULL); + result = wlp->xmit_frame(wlp, skb, dev_addr); + if (result < 0) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Unable to transmit frame: %d\n", + result); + if (result == -ENXIO) + dev_err(dev, "WLP: Is network interface up? \n"); + /* We could try again ... */ + dev_kfree_skb(skb);/*we need to free if tx fails */ + } +out: + kfree(conn_ctx); + BUG_ON(wlp->start_queue == NULL); + wlp->start_queue(wlp); + mutex_unlock(&wss->mutex); + d_fnend(5, dev, "wlp %p, wss %p (wssid %s)\n", wlp, wss, buf); +} + +/** + * Add WLP header to outgoing skb + * + * @eda_entry: pointer to neighbor's entry in the EDA cache + * @_skb: skb containing data destined to the neighbor + */ +int wlp_wss_prep_hdr(struct wlp *wlp, struct wlp_eda_node *eda_entry, + void *_skb) +{ + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = 0; + unsigned char *eth_addr = eda_entry->eth_addr; + struct uwb_dev_addr *dev_addr = &eda_entry->dev_addr; + struct sk_buff *skb = _skb; + struct wlp_frame_std_abbrv_hdr *std_hdr; + + d_fnstart(6, dev, "wlp %p \n", wlp); + if (eda_entry->state == WLP_WSS_CONNECTED) { + /* Add WLP header */ + BUG_ON(skb_headroom(skb) < sizeof(*std_hdr)); + std_hdr = (void *) __skb_push(skb, sizeof(*std_hdr)); + std_hdr->hdr.mux_hdr = cpu_to_le16(WLP_PROTOCOL_ID); + std_hdr->hdr.type = WLP_FRAME_STANDARD; + std_hdr->tag = eda_entry->wss->tag; + } else { + if (printk_ratelimit()) + dev_err(dev, "WLP: Destination neighbor (Ethernet: " + "%02x:%02x:%02x:%02x:%02x:%02x, Dev: " + "%02x:%02x) is not connected. \n", eth_addr[0], + eth_addr[1], eth_addr[2], eth_addr[3], + eth_addr[4], eth_addr[5], dev_addr->data[1], + dev_addr->data[0]); + result = -EINVAL; + } + d_fnend(6, dev, "wlp %p \n", wlp); + return result; +} + + +/** + * Prepare skb for neighbor: connect if not already and prep WLP header + * + * This function is called in interrupt context, but it needs to sleep. We + * temporarily stop the net queue to establish the WLP connection. + * Setup of the WLP connection and restart of queue is scheduled + * on the default work queue. + * + * run with eda->lock held (spinlock) + */ +int wlp_wss_connect_prep(struct wlp *wlp, struct wlp_eda_node *eda_entry, + void *_skb) +{ + int result = 0; + struct device *dev = &wlp->rc->uwb_dev.dev; + struct uwb_dev_addr *dev_addr = &eda_entry->dev_addr; + unsigned char *eth_addr = eda_entry->eth_addr; + struct sk_buff *skb = _skb; + struct wlp_assoc_conn_ctx *conn_ctx; + + d_fnstart(5, dev, "wlp %p\n", wlp); + d_printf(5, dev, "To neighbor %02x:%02x with eth " + "%02x:%02x:%02x:%02x:%02x:%02x\n", dev_addr->data[1], + dev_addr->data[0], eth_addr[0], eth_addr[1], eth_addr[2], + eth_addr[3], eth_addr[4], eth_addr[5]); + if (eda_entry->state == WLP_WSS_UNCONNECTED) { + /* We don't want any more packets while we set up connection */ + BUG_ON(wlp->stop_queue == NULL); + wlp->stop_queue(wlp); + conn_ctx = kmalloc(sizeof(*conn_ctx), GFP_ATOMIC); + if (conn_ctx == NULL) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Unable to allocate memory " + "for connection handling.\n"); + result = -ENOMEM; + goto out; + } + conn_ctx->wlp = wlp; + conn_ctx->skb = skb; + conn_ctx->eda_entry = *eda_entry; + INIT_WORK(&conn_ctx->ws, wlp_wss_connect_send); + schedule_work(&conn_ctx->ws); + result = 1; + } else if (eda_entry->state == WLP_WSS_CONNECT_FAILED) { + /* Previous connection attempts failed, don't retry - see + * conditions for connection in WLP 0.99 [7.6.2] */ + if (printk_ratelimit()) + dev_err(dev, "Could not connect to neighbor " + "previously. Not retrying. \n"); + result = -ENONET; + goto out; + } else { /* eda_entry->state == WLP_WSS_CONNECTED */ + d_printf(5, dev, "Neighbor is connected, preparing frame.\n"); + result = wlp_wss_prep_hdr(wlp, eda_entry, skb); + } +out: + d_fnend(5, dev, "wlp %p, result = %d \n", wlp, result); + return result; +} + +/** + * Emulate broadcast: copy skb, send copy to neighbor (connect if not already) + * + * We need to copy skbs in the case where we emulate broadcast through + * unicast. We copy instead of clone because we are modifying the data of + * the frame after copying ... clones share data so we cannot emulate + * broadcast using clones. + * + * run with eda->lock held (spinlock) + */ +int wlp_wss_send_copy(struct wlp *wlp, struct wlp_eda_node *eda_entry, + void *_skb) +{ + int result = -ENOMEM; + struct device *dev = &wlp->rc->uwb_dev.dev; + struct sk_buff *skb = _skb; + struct sk_buff *copy; + struct uwb_dev_addr *dev_addr = &eda_entry->dev_addr; + + d_fnstart(5, dev, "to neighbor %02x:%02x, skb (%p) \n", + dev_addr->data[1], dev_addr->data[0], skb); + copy = skb_copy(skb, GFP_ATOMIC); + if (copy == NULL) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Unable to copy skb for " + "transmission.\n"); + goto out; + } + result = wlp_wss_connect_prep(wlp, eda_entry, copy); + if (result < 0) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Unable to connect/send skb " + "to neighbor.\n"); + dev_kfree_skb_irq(copy); + goto out; + } else if (result == 1) + /* Frame will be transmitted separately */ + goto out; + BUG_ON(wlp->xmit_frame == NULL); + result = wlp->xmit_frame(wlp, copy, dev_addr); + if (result < 0) { + if (printk_ratelimit()) + dev_err(dev, "WLP: Unable to transmit frame: %d\n", + result); + if ((result == -ENXIO) && printk_ratelimit()) + dev_err(dev, "WLP: Is network interface up? \n"); + /* We could try again ... */ + dev_kfree_skb_irq(copy);/*we need to free if tx fails */ + } +out: + d_fnend(5, dev, "to neighbor %02x:%02x \n", dev_addr->data[1], + dev_addr->data[0]); + return result; +} + + +/** + * Setup WSS + * + * Should be called by network driver after the interface has been given a + * MAC address. + */ +int wlp_wss_setup(struct net_device *net_dev, struct wlp_wss *wss) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + int result = 0; + d_fnstart(5, dev, "wss (%p) \n", wss); + mutex_lock(&wss->mutex); + wss->kobj.parent = &net_dev->dev.kobj; + if (!is_valid_ether_addr(net_dev->dev_addr)) { + dev_err(dev, "WLP: Invalid MAC address. Cannot use for" + "virtual.\n"); + result = -EINVAL; + goto out; + } + memcpy(wss->virtual_addr.data, net_dev->dev_addr, + sizeof(wss->virtual_addr.data)); +out: + mutex_unlock(&wss->mutex); + d_fnend(5, dev, "wss (%p) \n", wss); + return result; +} +EXPORT_SYMBOL_GPL(wlp_wss_setup); + +/** + * Remove WSS + * + * Called by client that configured WSS through wlp_wss_setup(). This + * function is called when client no longer needs WSS, eg. client shuts + * down. + * + * We remove the WLP IE from the beacon before initiating local cleanup. + */ +void wlp_wss_remove(struct wlp_wss *wss) +{ + struct wlp *wlp = container_of(wss, struct wlp, wss); + struct device *dev = &wlp->rc->uwb_dev.dev; + d_fnstart(5, dev, "wss (%p) \n", wss); + mutex_lock(&wss->mutex); + if (wss->state == WLP_WSS_STATE_ACTIVE) + uwb_rc_ie_rm(wlp->rc, UWB_IE_WLP); + if (wss->state != WLP_WSS_STATE_NONE) { + sysfs_remove_group(&wss->kobj, &wss_attr_group); + kobject_put(&wss->kobj); + } + wss->kobj.parent = NULL; + memset(&wss->virtual_addr, 0, sizeof(wss->virtual_addr)); + /* Cleanup EDA cache */ + wlp_eda_release(&wlp->eda); + wlp_eda_init(&wlp->eda); + mutex_unlock(&wss->mutex); + d_fnend(5, dev, "wss (%p) \n", wss); +} +EXPORT_SYMBOL_GPL(wlp_wss_remove); diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 24ee96c4e9e9..07b6addbb3c1 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -1872,7 +1872,7 @@ static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_i struct fb_info *info = pci_get_drvdata(pdev); struct aty128fb_par *par = info->par; struct fb_var_screeninfo var; - char video_card[DEVICE_NAME_SIZE]; + char video_card[50]; u8 chip_rev; u32 dac; diff --git a/drivers/video/aty/radeonfb.h b/drivers/video/aty/radeonfb.h index c347e38cd0b0..ccbfffd12805 100644 --- a/drivers/video/aty/radeonfb.h +++ b/drivers/video/aty/radeonfb.h @@ -289,7 +289,7 @@ struct radeonfb_info { struct radeon_regs state; struct radeon_regs init_state; - char name[DEVICE_NAME_SIZE]; + char name[50]; unsigned long mmio_base_phys; unsigned long fb_base_phys; diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 97aff8db10bf..4be3b46c069b 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -3586,7 +3586,8 @@ static int __init fb_console_init(void) acquire_console_sem(); fb_register_client(&fbcon_event_notifier); - fbcon_device = device_create(fb_class, NULL, MKDEV(0, 0), "fbcon"); + fbcon_device = device_create_drvdata(fb_class, NULL, MKDEV(0, 0), + NULL, "fbcon"); if (IS_ERR(fbcon_device)) { printk(KERN_WARNING "Unable to create device " diff --git a/drivers/video/fb_ddc.c b/drivers/video/fb_ddc.c index a0df63289b5f..0cf96eb8a60f 100644 --- a/drivers/video/fb_ddc.c +++ b/drivers/video/fb_ddc.c @@ -106,6 +106,7 @@ unsigned char *fb_ddc_read(struct i2c_adapter *adapter) algo_data->setsda(algo_data->data, 1); algo_data->setscl(algo_data->data, 1); + adapter->class |= I2C_CLASS_DDC; return edid; } diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 776f7fcd2fbf..971ef551cfcd 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1432,8 +1432,9 @@ register_framebuffer(struct fb_info *fb_info) break; fb_info->node = i; - fb_info->dev = device_create(fb_class, fb_info->device, - MKDEV(FB_MAJOR, i), "fb%d", i); + fb_info->dev = device_create_drvdata(fb_class, fb_info->device, + MKDEV(FB_MAJOR, i), NULL, + "fb%d", i); if (IS_ERR(fb_info->dev)) { /* Not fatal */ printk(KERN_WARNING "Unable to create device for framebuffer %d; errno = %ld\n", i, PTR_ERR(fb_info->dev)); diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c index ca95f09d8b43..fcf9fadbf572 100644 --- a/drivers/video/intelfb/intelfb_i2c.c +++ b/drivers/video/intelfb/intelfb_i2c.c @@ -100,7 +100,8 @@ static int intelfb_gpio_getsda(void *data) static int intelfb_setup_i2c_bus(struct intelfb_info *dinfo, struct intelfb_i2c_chan *chan, - const u32 reg, const char *name) + const u32 reg, const char *name, + int class) { int rc; @@ -108,6 +109,7 @@ static int intelfb_setup_i2c_bus(struct intelfb_info *dinfo, chan->reg = reg; snprintf(chan->adapter.name, sizeof(chan->adapter.name), "intelfb %s", name); + chan->adapter.class = class; chan->adapter.owner = THIS_MODULE; chan->adapter.id = I2C_HW_B_INTELFB; chan->adapter.algo_data = &chan->algo; @@ -145,7 +147,7 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo) /* setup the DDC bus for analog output */ intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus, GPIOA, - "CRTDDC_A"); + "CRTDDC_A", I2C_CLASS_DDC); i++; /* need to add the output busses for each device @@ -159,9 +161,9 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo) case INTEL_865G: dinfo->output[i].type = INTELFB_OUTPUT_DVO; intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus, - GPIOD, "DVODDC_D"); + GPIOD, "DVODDC_D", I2C_CLASS_DDC); intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus, - GPIOE, "DVOI2C_E"); + GPIOE, "DVOI2C_E", 0); i++; break; case INTEL_915G: @@ -174,7 +176,7 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo) /* SDVO ports have a single control bus - 2 devices */ dinfo->output[i].type = INTELFB_OUTPUT_SDVO; intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus, - GPIOE, "SDVOCTRL_E"); + GPIOE, "SDVOCTRL_E", 0); /* TODO: initialize the SDVO */ /* I830SDVOInit(pScrn, i, DVOB); */ i++; diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c index 4baab7be58de..c14e3e2212b3 100644 --- a/drivers/video/matrox/i2c-matroxfb.c +++ b/drivers/video/matrox/i2c-matroxfb.c @@ -87,13 +87,7 @@ static int matroxfb_gpio_getscl(void* data) { return (matroxfb_read_gpio(b->minfo) & b->mask.clock) ? 1 : 0; } -static struct i2c_adapter matrox_i2c_adapter_template = -{ - .owner = THIS_MODULE, - .id = I2C_HW_B_G400, -}; - -static struct i2c_algo_bit_data matrox_i2c_algo_template = +static const struct i2c_algo_bit_data matrox_i2c_algo_template = { .setsda = matroxfb_gpio_setsda, .setscl = matroxfb_gpio_setscl, @@ -104,16 +98,19 @@ static struct i2c_algo_bit_data matrox_i2c_algo_template = }; static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo, - unsigned int data, unsigned int clock, const char* name) { + unsigned int data, unsigned int clock, const char *name, + int class) +{ int err; b->minfo = minfo; b->mask.data = data; b->mask.clock = clock; - b->adapter = matrox_i2c_adapter_template; + b->adapter.owner = THIS_MODULE; snprintf(b->adapter.name, sizeof(b->adapter.name), name, minfo->fbcon.node); i2c_set_adapdata(&b->adapter, b); + b->adapter.class = class; b->adapter.algo_data = &b->bac; b->adapter.dev.parent = &ACCESS_FBINFO(pcidev)->dev; b->bac = matrox_i2c_algo_template; @@ -159,24 +156,42 @@ static void* i2c_matroxfb_probe(struct matrox_fb_info* minfo) { switch (ACCESS_FBINFO(chip)) { case MGA_2064: case MGA_2164: - err = i2c_bus_reg(&m2info->ddc1, minfo, DDC1B_DATA, DDC1B_CLK, "DDC:fb%u #0"); + err = i2c_bus_reg(&m2info->ddc1, minfo, + DDC1B_DATA, DDC1B_CLK, + "DDC:fb%u #0", I2C_CLASS_DDC); break; default: - err = i2c_bus_reg(&m2info->ddc1, minfo, DDC1_DATA, DDC1_CLK, "DDC:fb%u #0"); + err = i2c_bus_reg(&m2info->ddc1, minfo, + DDC1_DATA, DDC1_CLK, + "DDC:fb%u #0", I2C_CLASS_DDC); break; } if (err) goto fail_ddc1; if (ACCESS_FBINFO(devflags.dualhead)) { - err = i2c_bus_reg(&m2info->ddc2, minfo, DDC2_DATA, DDC2_CLK, "DDC:fb%u #1"); + err = i2c_bus_reg(&m2info->ddc2, minfo, + DDC2_DATA, DDC2_CLK, + "DDC:fb%u #1", I2C_CLASS_DDC); if (err == -ENODEV) { printk(KERN_INFO "i2c-matroxfb: VGA->TV plug detected, DDC unavailable.\n"); } else if (err) printk(KERN_INFO "i2c-matroxfb: Could not register secondary output i2c bus. Continuing anyway.\n"); /* Register maven bus even on G450/G550 */ - err = i2c_bus_reg(&m2info->maven, minfo, MAT_DATA, MAT_CLK, "MAVEN:fb%u"); + err = i2c_bus_reg(&m2info->maven, minfo, + MAT_DATA, MAT_CLK, "MAVEN:fb%u", 0); if (err) printk(KERN_INFO "i2c-matroxfb: Could not register Maven i2c bus. Continuing anyway.\n"); + else { + struct i2c_board_info maven_info = { + I2C_BOARD_INFO("maven", 0x1b), + }; + unsigned short const addr_list[2] = { + 0x1b, I2C_CLIENT_END + }; + + i2c_new_probed_device(&m2info->maven.adapter, + &maven_info, addr_list); + } } return m2info; fail_ddc1:; diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c index 89da27bd5c49..6d31eb4b674e 100644 --- a/drivers/video/matrox/matroxfb_maven.c +++ b/drivers/video/matrox/matroxfb_maven.c @@ -19,8 +19,6 @@ #include <linux/matroxfb.h> #include <asm/div64.h> -#define MAVEN_I2CID (0x1B) - #define MGATVO_B 1 #define MGATVO_C 2 @@ -128,7 +126,7 @@ static int get_ctrl_id(__u32 v4l2_id) { struct maven_data { struct matrox_fb_info* primary_head; - struct i2c_client client; + struct i2c_client *client; int version; }; @@ -974,7 +972,7 @@ static inline int maven_compute_timming(struct maven_data* md, static int maven_program_timming(struct maven_data* md, const struct mavenregs* m) { - struct i2c_client* c = &md->client; + struct i2c_client *c = md->client; if (m->mode == MATROXFB_OUTPUT_MODE_MONITOR) { LR(0x80); @@ -1011,7 +1009,7 @@ static int maven_program_timming(struct maven_data* md, } static inline int maven_resync(struct maven_data* md) { - struct i2c_client* c = &md->client; + struct i2c_client *c = md->client; maven_set_reg(c, 0x95, 0x20); /* start whole thing */ return 0; } @@ -1069,48 +1067,48 @@ static int maven_set_control (struct maven_data* md, maven_compute_bwlevel(md, &blacklevel, &whitelevel); blacklevel = (blacklevel >> 2) | ((blacklevel & 3) << 8); whitelevel = (whitelevel >> 2) | ((whitelevel & 3) << 8); - maven_set_reg_pair(&md->client, 0x0e, blacklevel); - maven_set_reg_pair(&md->client, 0x1e, whitelevel); + maven_set_reg_pair(md->client, 0x0e, blacklevel); + maven_set_reg_pair(md->client, 0x1e, whitelevel); } break; case V4L2_CID_SATURATION: { - maven_set_reg(&md->client, 0x20, p->value); - maven_set_reg(&md->client, 0x22, p->value); + maven_set_reg(md->client, 0x20, p->value); + maven_set_reg(md->client, 0x22, p->value); } break; case V4L2_CID_HUE: { - maven_set_reg(&md->client, 0x25, p->value); + maven_set_reg(md->client, 0x25, p->value); } break; case V4L2_CID_GAMMA: { const struct maven_gamma* g; g = maven_compute_gamma(md); - maven_set_reg(&md->client, 0x83, g->reg83); - maven_set_reg(&md->client, 0x84, g->reg84); - maven_set_reg(&md->client, 0x85, g->reg85); - maven_set_reg(&md->client, 0x86, g->reg86); - maven_set_reg(&md->client, 0x87, g->reg87); - maven_set_reg(&md->client, 0x88, g->reg88); - maven_set_reg(&md->client, 0x89, g->reg89); - maven_set_reg(&md->client, 0x8a, g->reg8a); - maven_set_reg(&md->client, 0x8b, g->reg8b); + maven_set_reg(md->client, 0x83, g->reg83); + maven_set_reg(md->client, 0x84, g->reg84); + maven_set_reg(md->client, 0x85, g->reg85); + maven_set_reg(md->client, 0x86, g->reg86); + maven_set_reg(md->client, 0x87, g->reg87); + maven_set_reg(md->client, 0x88, g->reg88); + maven_set_reg(md->client, 0x89, g->reg89); + maven_set_reg(md->client, 0x8a, g->reg8a); + maven_set_reg(md->client, 0x8b, g->reg8b); } break; case MATROXFB_CID_TESTOUT: { unsigned char val - = maven_get_reg(&md->client,0x8d); + = maven_get_reg(md->client, 0x8d); if (p->value) val |= 0x10; else val &= ~0x10; - maven_set_reg(&md->client, 0x8d, val); + maven_set_reg(md->client, 0x8d, val); } break; case MATROXFB_CID_DEFLICKER: { - maven_set_reg(&md->client, 0x93, maven_compute_deflicker(md)); + maven_set_reg(md->client, 0x93, maven_compute_deflicker(md)); } break; } @@ -1189,6 +1187,7 @@ static int maven_init_client(struct i2c_client* clnt) { MINFO_FROM(container_of(clnt->adapter, struct i2c_bit_adapter, adapter)->minfo); md->primary_head = MINFO; + md->client = clnt; down_write(&ACCESS_FBINFO(altout.lock)); ACCESS_FBINFO(outputs[1]).output = &maven_altout; ACCESS_FBINFO(outputs[1]).src = ACCESS_FBINFO(outputs[1]).default_src; @@ -1232,14 +1231,11 @@ static int maven_shutdown_client(struct i2c_client* clnt) { return 0; } -static const unsigned short normal_i2c[] = { MAVEN_I2CID, I2C_CLIENT_END }; -I2C_CLIENT_INSMOD; - -static struct i2c_driver maven_driver; - -static int maven_detect_client(struct i2c_adapter* adapter, int address, int kind) { - int err = 0; - struct i2c_client* new_client; +static int maven_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct i2c_adapter *adapter = client->adapter; + int err = -ENODEV; struct maven_data* data; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_WORD_DATA | @@ -1250,50 +1246,37 @@ static int maven_detect_client(struct i2c_adapter* adapter, int address, int kin err = -ENOMEM; goto ERROR0; } - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = &maven_driver; - new_client->flags = 0; - strlcpy(new_client->name, "maven", I2C_NAME_SIZE); - if ((err = i2c_attach_client(new_client))) - goto ERROR3; - err = maven_init_client(new_client); + i2c_set_clientdata(client, data); + err = maven_init_client(client); if (err) goto ERROR4; return 0; ERROR4:; - i2c_detach_client(new_client); -ERROR3:; - kfree(new_client); + kfree(data); ERROR0:; return err; } -static int maven_attach_adapter(struct i2c_adapter* adapter) { - if (adapter->id == I2C_HW_B_G400) - return i2c_probe(adapter, &addr_data, &maven_detect_client); - return 0; -} - -static int maven_detach_client(struct i2c_client* client) { - int err; - - if ((err = i2c_detach_client(client))) - return err; +static int maven_remove(struct i2c_client *client) +{ maven_shutdown_client(client); kfree(i2c_get_clientdata(client)); return 0; } +static struct i2c_device_id maven_id[] = { + { "maven", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, maven_id); + static struct i2c_driver maven_driver={ .driver = { .name = "maven", }, - .id = I2C_DRIVERID_MGATVO, - .attach_adapter = maven_attach_adapter, - .detach_client = maven_detach_client, + .probe = maven_probe, + .remove = maven_remove, + .id_table = maven_id, }; static int __init matroxfb_maven_init(void) diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 7dcda187d9ba..796e0d1d5b19 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -1588,7 +1588,7 @@ static int __init pxafb_parse_options(struct device *dev, char *options) static char g_options[256] __devinitdata = ""; -#ifndef CONFIG_MODULES +#ifndef MODULE static int __devinit pxafb_setup_options(void) { char *options = NULL; @@ -1685,14 +1685,14 @@ static int __init pxafb_probe(struct platform_device *dev) if (r == NULL) { dev_err(&dev->dev, "no I/O memory resource defined\n"); ret = -ENODEV; - goto failed; + goto failed_fbi; } r = request_mem_region(r->start, r->end - r->start + 1, dev->name); if (r == NULL) { dev_err(&dev->dev, "failed to request I/O memory\n"); ret = -EBUSY; - goto failed; + goto failed_fbi; } fbi->mmio_base = ioremap(r->start, r->end - r->start + 1); @@ -1735,8 +1735,17 @@ static int __init pxafb_probe(struct platform_device *dev) * This makes sure that our colour bitfield * descriptors are correctly initialised. */ - pxafb_check_var(&fbi->fb.var, &fbi->fb); - pxafb_set_par(&fbi->fb); + ret = pxafb_check_var(&fbi->fb.var, &fbi->fb); + if (ret) { + dev_err(&dev->dev, "failed to get suitable mode\n"); + goto failed_free_irq; + } + + ret = pxafb_set_par(&fbi->fb); + if (ret) { + dev_err(&dev->dev, "Failed to set parameters\n"); + goto failed_free_irq; + } platform_set_drvdata(dev, fbi); @@ -1744,7 +1753,7 @@ static int __init pxafb_probe(struct platform_device *dev) if (ret < 0) { dev_err(&dev->dev, "Failed to register framebuffer device: %d\n", ret); - goto failed_free_irq; + goto failed_free_cmap; } #ifdef CONFIG_CPU_FREQ @@ -1763,18 +1772,23 @@ static int __init pxafb_probe(struct platform_device *dev) return 0; +failed_free_cmap: + if (fbi->fb.cmap.len) + fb_dealloc_cmap(&fbi->fb.cmap); failed_free_irq: free_irq(irq, fbi); -failed_free_res: - release_mem_region(r->start, r->end - r->start + 1); -failed_free_io: - iounmap(fbi->mmio_base); failed_free_mem: dma_free_writecombine(&dev->dev, fbi->map_size, fbi->map_cpu, fbi->map_dma); -failed: +failed_free_io: + iounmap(fbi->mmio_base); +failed_free_res: + release_mem_region(r->start, r->end - r->start + 1); +failed_fbi: + clk_put(fbi->clk); platform_set_drvdata(dev, NULL); kfree(fbi); +failed: return ret; } diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index 619a6f8d65a2..47ed39b52f9c 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -18,6 +18,7 @@ * frame buffer. */ +#include <linux/console.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/fb.h> @@ -42,37 +43,68 @@ struct xenfb_info { struct xenfb_page *page; unsigned long *mfns; int update_wanted; /* XENFB_TYPE_UPDATE wanted */ + int feature_resize; /* XENFB_TYPE_RESIZE ok */ + struct xenfb_resize resize; /* protected by resize_lock */ + int resize_dpy; /* ditto */ + spinlock_t resize_lock; struct xenbus_device *xbdev; }; -static u32 xenfb_mem_len = XENFB_WIDTH * XENFB_HEIGHT * XENFB_DEPTH / 8; +#define XENFB_DEFAULT_FB_LEN (XENFB_WIDTH * XENFB_HEIGHT * XENFB_DEPTH / 8) +enum { KPARAM_MEM, KPARAM_WIDTH, KPARAM_HEIGHT, KPARAM_CNT }; +static int video[KPARAM_CNT] = { 2, XENFB_WIDTH, XENFB_HEIGHT }; +module_param_array(video, int, NULL, 0); +MODULE_PARM_DESC(video, + "Video memory size in MB, width, height in pixels (default 2,800,600)"); + +static void xenfb_make_preferred_console(void); static int xenfb_remove(struct xenbus_device *); -static void xenfb_init_shared_page(struct xenfb_info *); +static void xenfb_init_shared_page(struct xenfb_info *, struct fb_info *); static int xenfb_connect_backend(struct xenbus_device *, struct xenfb_info *); static void xenfb_disconnect_backend(struct xenfb_info *); +static void xenfb_send_event(struct xenfb_info *info, + union xenfb_out_event *event) +{ + u32 prod; + + prod = info->page->out_prod; + /* caller ensures !xenfb_queue_full() */ + mb(); /* ensure ring space available */ + XENFB_OUT_RING_REF(info->page, prod) = *event; + wmb(); /* ensure ring contents visible */ + info->page->out_prod = prod + 1; + + notify_remote_via_irq(info->irq); +} + static void xenfb_do_update(struct xenfb_info *info, int x, int y, int w, int h) { union xenfb_out_event event; - u32 prod; + memset(&event, 0, sizeof(event)); event.type = XENFB_TYPE_UPDATE; event.update.x = x; event.update.y = y; event.update.width = w; event.update.height = h; - prod = info->page->out_prod; /* caller ensures !xenfb_queue_full() */ - mb(); /* ensure ring space available */ - XENFB_OUT_RING_REF(info->page, prod) = event; - wmb(); /* ensure ring contents visible */ - info->page->out_prod = prod + 1; + xenfb_send_event(info, &event); +} - notify_remote_via_irq(info->irq); +static void xenfb_do_resize(struct xenfb_info *info) +{ + union xenfb_out_event event; + + memset(&event, 0, sizeof(event)); + event.resize = info->resize; + + /* caller ensures !xenfb_queue_full() */ + xenfb_send_event(info, &event); } static int xenfb_queue_full(struct xenfb_info *info) @@ -84,12 +116,28 @@ static int xenfb_queue_full(struct xenfb_info *info) return prod - cons == XENFB_OUT_RING_LEN; } +static void xenfb_handle_resize_dpy(struct xenfb_info *info) +{ + unsigned long flags; + + spin_lock_irqsave(&info->resize_lock, flags); + if (info->resize_dpy) { + if (!xenfb_queue_full(info)) { + info->resize_dpy = 0; + xenfb_do_resize(info); + } + } + spin_unlock_irqrestore(&info->resize_lock, flags); +} + static void xenfb_refresh(struct xenfb_info *info, int x1, int y1, int w, int h) { unsigned long flags; - int y2 = y1 + h - 1; int x2 = x1 + w - 1; + int y2 = y1 + h - 1; + + xenfb_handle_resize_dpy(info); if (!info->update_wanted) return; @@ -222,6 +270,57 @@ static ssize_t xenfb_write(struct fb_info *p, const char __user *buf, return res; } +static int +xenfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) +{ + struct xenfb_info *xenfb_info; + int required_mem_len; + + xenfb_info = info->par; + + if (!xenfb_info->feature_resize) { + if (var->xres == video[KPARAM_WIDTH] && + var->yres == video[KPARAM_HEIGHT] && + var->bits_per_pixel == xenfb_info->page->depth) { + return 0; + } + return -EINVAL; + } + + /* Can't resize past initial width and height */ + if (var->xres > video[KPARAM_WIDTH] || var->yres > video[KPARAM_HEIGHT]) + return -EINVAL; + + required_mem_len = var->xres * var->yres * xenfb_info->page->depth / 8; + if (var->bits_per_pixel == xenfb_info->page->depth && + var->xres <= info->fix.line_length / (XENFB_DEPTH / 8) && + required_mem_len <= info->fix.smem_len) { + var->xres_virtual = var->xres; + var->yres_virtual = var->yres; + return 0; + } + return -EINVAL; +} + +static int xenfb_set_par(struct fb_info *info) +{ + struct xenfb_info *xenfb_info; + unsigned long flags; + + xenfb_info = info->par; + + spin_lock_irqsave(&xenfb_info->resize_lock, flags); + xenfb_info->resize.type = XENFB_TYPE_RESIZE; + xenfb_info->resize.width = info->var.xres; + xenfb_info->resize.height = info->var.yres; + xenfb_info->resize.stride = info->fix.line_length; + xenfb_info->resize.depth = info->var.bits_per_pixel; + xenfb_info->resize.offset = 0; + xenfb_info->resize_dpy = 1; + spin_unlock_irqrestore(&xenfb_info->resize_lock, flags); + return 0; +} + static struct fb_ops xenfb_fb_ops = { .owner = THIS_MODULE, .fb_read = fb_sys_read, @@ -230,6 +329,8 @@ static struct fb_ops xenfb_fb_ops = { .fb_fillrect = xenfb_fillrect, .fb_copyarea = xenfb_copyarea, .fb_imageblit = xenfb_imageblit, + .fb_check_var = xenfb_check_var, + .fb_set_par = xenfb_set_par, }; static irqreturn_t xenfb_event_handler(int rq, void *dev_id) @@ -258,6 +359,8 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, { struct xenfb_info *info; struct fb_info *fb_info; + int fb_size; + int val; int ret; info = kzalloc(sizeof(*info), GFP_KERNEL); @@ -265,18 +368,35 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, xenbus_dev_fatal(dev, -ENOMEM, "allocating info structure"); return -ENOMEM; } + + /* Limit kernel param videoram amount to what is in xenstore */ + if (xenbus_scanf(XBT_NIL, dev->otherend, "videoram", "%d", &val) == 1) { + if (val < video[KPARAM_MEM]) + video[KPARAM_MEM] = val; + } + + /* If requested res does not fit in available memory, use default */ + fb_size = video[KPARAM_MEM] * 1024 * 1024; + if (video[KPARAM_WIDTH] * video[KPARAM_HEIGHT] * XENFB_DEPTH / 8 + > fb_size) { + video[KPARAM_WIDTH] = XENFB_WIDTH; + video[KPARAM_HEIGHT] = XENFB_HEIGHT; + fb_size = XENFB_DEFAULT_FB_LEN; + } + dev->dev.driver_data = info; info->xbdev = dev; info->irq = -1; info->x1 = info->y1 = INT_MAX; spin_lock_init(&info->dirty_lock); + spin_lock_init(&info->resize_lock); - info->fb = vmalloc(xenfb_mem_len); + info->fb = vmalloc(fb_size); if (info->fb == NULL) goto error_nomem; - memset(info->fb, 0, xenfb_mem_len); + memset(info->fb, 0, fb_size); - info->nr_pages = (xenfb_mem_len + PAGE_SIZE - 1) >> PAGE_SHIFT; + info->nr_pages = (fb_size + PAGE_SIZE - 1) >> PAGE_SHIFT; info->mfns = vmalloc(sizeof(unsigned long) * info->nr_pages); if (!info->mfns) @@ -287,8 +407,6 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, if (!info->page) goto error_nomem; - xenfb_init_shared_page(info); - /* abusing framebuffer_alloc() to allocate pseudo_palette */ fb_info = framebuffer_alloc(sizeof(u32) * 256, NULL); if (fb_info == NULL) @@ -301,9 +419,9 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, fb_info->screen_base = info->fb; fb_info->fbops = &xenfb_fb_ops; - fb_info->var.xres_virtual = fb_info->var.xres = info->page->width; - fb_info->var.yres_virtual = fb_info->var.yres = info->page->height; - fb_info->var.bits_per_pixel = info->page->depth; + fb_info->var.xres_virtual = fb_info->var.xres = video[KPARAM_WIDTH]; + fb_info->var.yres_virtual = fb_info->var.yres = video[KPARAM_HEIGHT]; + fb_info->var.bits_per_pixel = XENFB_DEPTH; fb_info->var.red = (struct fb_bitfield){16, 8, 0}; fb_info->var.green = (struct fb_bitfield){8, 8, 0}; @@ -315,9 +433,9 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, fb_info->var.vmode = FB_VMODE_NONINTERLACED; fb_info->fix.visual = FB_VISUAL_TRUECOLOR; - fb_info->fix.line_length = info->page->line_length; + fb_info->fix.line_length = fb_info->var.xres * XENFB_DEPTH / 8; fb_info->fix.smem_start = 0; - fb_info->fix.smem_len = xenfb_mem_len; + fb_info->fix.smem_len = fb_size; strcpy(fb_info->fix.id, "xen"); fb_info->fix.type = FB_TYPE_PACKED_PIXELS; fb_info->fix.accel = FB_ACCEL_NONE; @@ -334,6 +452,8 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, fb_info->fbdefio = &xenfb_defio; fb_deferred_io_init(fb_info); + xenfb_init_shared_page(info, fb_info); + ret = register_framebuffer(fb_info); if (ret) { fb_deferred_io_cleanup(fb_info); @@ -348,6 +468,7 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, if (ret < 0) goto error; + xenfb_make_preferred_console(); return 0; error_nomem: @@ -358,12 +479,34 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, return ret; } +static __devinit void +xenfb_make_preferred_console(void) +{ + struct console *c; + + if (console_set_on_cmdline) + return; + + acquire_console_sem(); + for (c = console_drivers; c; c = c->next) { + if (!strcmp(c->name, "tty") && c->index == 0) + break; + } + release_console_sem(); + if (c) { + unregister_console(c); + c->flags |= CON_CONSDEV; + c->flags &= ~CON_PRINTBUFFER; /* don't print again */ + register_console(c); + } +} + static int xenfb_resume(struct xenbus_device *dev) { struct xenfb_info *info = dev->dev.driver_data; xenfb_disconnect_backend(info); - xenfb_init_shared_page(info); + xenfb_init_shared_page(info, info->fb_info); return xenfb_connect_backend(dev, info); } @@ -391,20 +534,23 @@ static unsigned long vmalloc_to_mfn(void *address) return pfn_to_mfn(vmalloc_to_pfn(address)); } -static void xenfb_init_shared_page(struct xenfb_info *info) +static void xenfb_init_shared_page(struct xenfb_info *info, + struct fb_info *fb_info) { int i; + int epd = PAGE_SIZE / sizeof(info->mfns[0]); for (i = 0; i < info->nr_pages; i++) info->mfns[i] = vmalloc_to_mfn(info->fb + i * PAGE_SIZE); - info->page->pd[0] = vmalloc_to_mfn(info->mfns); - info->page->pd[1] = 0; - info->page->width = XENFB_WIDTH; - info->page->height = XENFB_HEIGHT; - info->page->depth = XENFB_DEPTH; - info->page->line_length = (info->page->depth / 8) * info->page->width; - info->page->mem_length = xenfb_mem_len; + for (i = 0; i * epd < info->nr_pages; i++) + info->page->pd[i] = vmalloc_to_mfn(&info->mfns[i * epd]); + + info->page->width = fb_info->var.xres; + info->page->height = fb_info->var.yres; + info->page->depth = fb_info->var.bits_per_pixel; + info->page->line_length = fb_info->fix.line_length; + info->page->mem_length = fb_info->fix.smem_len; info->page->in_cons = info->page->in_prod = 0; info->page->out_cons = info->page->out_prod = 0; } @@ -504,6 +650,11 @@ InitWait: val = 0; if (val) info->update_wanted = 1; + + if (xenbus_scanf(XBT_NIL, dev->otherend, + "feature-resize", "%d", &val) < 0) + val = 0; + info->feature_resize = val; break; case XenbusStateClosing: @@ -547,4 +698,6 @@ static void __exit xenfb_cleanup(void) module_init(xenfb_init); module_exit(xenfb_cleanup); +MODULE_DESCRIPTION("Xen virtual framebuffer device frontend"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("xen:vfb"); diff --git a/drivers/w1/masters/ds2482.c b/drivers/w1/masters/ds2482.c index 0fd5820d5c61..74c199dd41ec 100644 --- a/drivers/w1/masters/ds2482.c +++ b/drivers/w1/masters/ds2482.c @@ -94,21 +94,31 @@ static const u8 ds2482_chan_rd[8] = #define DS2482_REG_STS_1WB 0x01 -static int ds2482_attach_adapter(struct i2c_adapter *adapter); -static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind); -static int ds2482_detach_client(struct i2c_client *client); +static int ds2482_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int ds2482_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info); +static int ds2482_remove(struct i2c_client *client); /** * Driver data (common to all clients) */ +static struct i2c_device_id ds2482_id[] = { + { "ds2482", 0 }, + { } +}; + static struct i2c_driver ds2482_driver = { .driver = { .owner = THIS_MODULE, .name = "ds2482", }, - .attach_adapter = ds2482_attach_adapter, - .detach_client = ds2482_detach_client, + .probe = ds2482_probe, + .remove = ds2482_remove, + .id_table = ds2482_id, + .detect = ds2482_detect, + .address_data = &addr_data, }; /* @@ -124,7 +134,7 @@ struct ds2482_w1_chan { }; struct ds2482_data { - struct i2c_client client; + struct i2c_client *client; struct mutex access_lock; /* 1-wire interface(s) */ @@ -147,7 +157,7 @@ struct ds2482_data { static inline int ds2482_select_register(struct ds2482_data *pdev, u8 read_ptr) { if (pdev->read_prt != read_ptr) { - if (i2c_smbus_write_byte_data(&pdev->client, + if (i2c_smbus_write_byte_data(pdev->client, DS2482_CMD_SET_READ_PTR, read_ptr) < 0) return -1; @@ -167,7 +177,7 @@ static inline int ds2482_select_register(struct ds2482_data *pdev, u8 read_ptr) */ static inline int ds2482_send_cmd(struct ds2482_data *pdev, u8 cmd) { - if (i2c_smbus_write_byte(&pdev->client, cmd) < 0) + if (i2c_smbus_write_byte(pdev->client, cmd) < 0) return -1; pdev->read_prt = DS2482_PTR_CODE_STATUS; @@ -187,7 +197,7 @@ static inline int ds2482_send_cmd(struct ds2482_data *pdev, u8 cmd) static inline int ds2482_send_cmd_data(struct ds2482_data *pdev, u8 cmd, u8 byte) { - if (i2c_smbus_write_byte_data(&pdev->client, cmd, byte) < 0) + if (i2c_smbus_write_byte_data(pdev->client, cmd, byte) < 0) return -1; /* all cmds leave in STATUS, except CONFIG */ @@ -216,7 +226,7 @@ static int ds2482_wait_1wire_idle(struct ds2482_data *pdev) if (!ds2482_select_register(pdev, DS2482_PTR_CODE_STATUS)) { do { - temp = i2c_smbus_read_byte(&pdev->client); + temp = i2c_smbus_read_byte(pdev->client); } while ((temp >= 0) && (temp & DS2482_REG_STS_1WB) && (++retries < DS2482_WAIT_IDLE_TIMEOUT)); } @@ -238,13 +248,13 @@ static int ds2482_wait_1wire_idle(struct ds2482_data *pdev) */ static int ds2482_set_channel(struct ds2482_data *pdev, u8 channel) { - if (i2c_smbus_write_byte_data(&pdev->client, DS2482_CMD_CHANNEL_SELECT, + if (i2c_smbus_write_byte_data(pdev->client, DS2482_CMD_CHANNEL_SELECT, ds2482_chan_wr[channel]) < 0) return -1; pdev->read_prt = DS2482_PTR_CODE_CHANNEL; pdev->channel = -1; - if (i2c_smbus_read_byte(&pdev->client) == ds2482_chan_rd[channel]) { + if (i2c_smbus_read_byte(pdev->client) == ds2482_chan_rd[channel]) { pdev->channel = channel; return 0; } @@ -368,7 +378,7 @@ static u8 ds2482_w1_read_byte(void *data) ds2482_select_register(pdev, DS2482_PTR_CODE_DATA); /* Read the data byte */ - result = i2c_smbus_read_byte(&pdev->client); + result = i2c_smbus_read_byte(pdev->client); mutex_unlock(&pdev->access_lock); @@ -415,47 +425,38 @@ static u8 ds2482_w1_reset_bus(void *data) } -/** - * Called to see if the device exists on an i2c bus. - */ -static int ds2482_attach_adapter(struct i2c_adapter *adapter) +static int ds2482_detect(struct i2c_client *client, int kind, + struct i2c_board_info *info) { - return i2c_probe(adapter, &addr_data, ds2482_detect); -} + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_WRITE_BYTE_DATA | + I2C_FUNC_SMBUS_BYTE)) + return -ENODEV; + strlcpy(info->type, "ds2482", I2C_NAME_SIZE); -/* - * The following function does more than just detection. If detection - * succeeds, it also registers the new chip. - */ -static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind) + return 0; +} + +static int ds2482_probe(struct i2c_client *client, + const struct i2c_device_id *id) { struct ds2482_data *data; - struct i2c_client *new_client; - int err = 0; + int err = -ENODEV; int temp1; int idx; - if (!i2c_check_functionality(adapter, - I2C_FUNC_SMBUS_WRITE_BYTE_DATA | - I2C_FUNC_SMBUS_BYTE)) - goto exit; - if (!(data = kzalloc(sizeof(struct ds2482_data), GFP_KERNEL))) { err = -ENOMEM; goto exit; } - new_client = &data->client; - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->driver = &ds2482_driver; - new_client->adapter = adapter; + data->client = client; + i2c_set_clientdata(client, data); /* Reset the device (sets the read_ptr to status) */ if (ds2482_send_cmd(data, DS2482_CMD_RESET) < 0) { - dev_dbg(&adapter->dev, "DS2482 reset failed at 0x%02x.\n", - address); + dev_warn(&client->dev, "DS2482 reset failed.\n"); goto exit_free; } @@ -463,10 +464,10 @@ static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind) ndelay(525); /* Read the status byte - only reset bit and line should be set */ - temp1 = i2c_smbus_read_byte(new_client); + temp1 = i2c_smbus_read_byte(client); if (temp1 != (DS2482_REG_STS_LL | DS2482_REG_STS_RST)) { - dev_dbg(&adapter->dev, "DS2482 (0x%02x) reset status " - "0x%02X - not a DS2482\n", address, temp1); + dev_warn(&client->dev, "DS2482 reset status " + "0x%02X - not a DS2482\n", temp1); goto exit_free; } @@ -478,16 +479,8 @@ static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind) /* Set all config items to 0 (off) */ ds2482_send_cmd_data(data, DS2482_CMD_WRITE_CONFIG, 0xF0); - /* We can fill in the remaining client fields */ - snprintf(new_client->name, sizeof(new_client->name), "ds2482-%d00", - data->w1_count); - mutex_init(&data->access_lock); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; - /* Register 1-wire interface(s) */ for (idx = 0; idx < data->w1_count; idx++) { data->w1_ch[idx].pdev = data; @@ -511,8 +504,6 @@ static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind) return 0; exit_w1_remove: - i2c_detach_client(new_client); - for (idx = 0; idx < data->w1_count; idx++) { if (data->w1_ch[idx].pdev != NULL) w1_remove_master_device(&data->w1_ch[idx].w1_bm); @@ -523,10 +514,10 @@ exit: return err; } -static int ds2482_detach_client(struct i2c_client *client) +static int ds2482_remove(struct i2c_client *client) { struct ds2482_data *data = i2c_get_clientdata(client); - int err, idx; + int idx; /* Unregister the 1-wire bridge(s) */ for (idx = 0; idx < data->w1_count; idx++) { @@ -534,13 +525,6 @@ static int ds2482_detach_client(struct i2c_client *client) w1_remove_master_device(&data->w1_ch[idx].w1_bm); } - /* Detach the i2c device */ - if ((err = i2c_detach_client(client))) { - dev_err(&client->dev, - "Deregistration failed, client not detached.\n"); - return err; - } - /* Free the memory */ kfree(data); return 0; diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 8662a6b7a30b..25b352b664d9 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -68,7 +68,6 @@ obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o obj-$(CONFIG_ITCO_WDT) += iTCO_wdt.o iTCO_vendor_support.o obj-$(CONFIG_IT8712F_WDT) += it8712f_wdt.o -CFLAGS_hpwdt.o += -O obj-$(CONFIG_HP_WATCHDOG) += hpwdt.o obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index 37af04f1ffd9..363286c54290 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile @@ -1,4 +1,4 @@ -obj-y += grant-table.o features.o events.o +obj-y += grant-table.o features.o events.o manage.o obj-y += xenbus/ obj-$(CONFIG_XEN_XENCOMM) += xencomm.o obj-$(CONFIG_XEN_BALLOON) += balloon.o diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index ab25ba6cbbb9..591bc29b55f5 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -225,7 +225,7 @@ static int increase_reservation(unsigned long nr_pages) page = balloon_next_page(page); } - reservation.extent_start = (unsigned long)frame_list; + set_xen_guest_handle(reservation.extent_start, frame_list); reservation.nr_extents = nr_pages; rc = HYPERVISOR_memory_op( XENMEM_populate_physmap, &reservation); @@ -321,7 +321,7 @@ static int decrease_reservation(unsigned long nr_pages) balloon_append(pfn_to_page(pfn)); } - reservation.extent_start = (unsigned long)frame_list; + set_xen_guest_handle(reservation.extent_start, frame_list); reservation.nr_extents = nr_pages; ret = HYPERVISOR_memory_op(XENMEM_decrease_reservation, &reservation); BUG_ON(ret != nr_pages); @@ -368,7 +368,7 @@ static void balloon_process(struct work_struct *work) } /* Resets the Xen limit, sets new target, and kicks off processing. */ -void balloon_set_new_target(unsigned long target) +static void balloon_set_new_target(unsigned long target) { /* No need for lock. Not read-modify-write updates. */ balloon_stats.hard_limit = ~0UL; @@ -483,7 +483,7 @@ static int dealloc_pte_fn( .extent_order = 0, .domid = DOMID_SELF }; - reservation.extent_start = (unsigned long)&mfn; + set_xen_guest_handle(reservation.extent_start, &mfn); set_pte_at(&init_mm, addr, pte, __pte_ma(0ull)); set_phys_to_machine(__pa(addr) >> PAGE_SHIFT, INVALID_P2M_ENTRY); ret = HYPERVISOR_memory_op(XENMEM_decrease_reservation, &reservation); @@ -519,7 +519,7 @@ static struct page **alloc_empty_pages_and_pagevec(int nr_pages) .extent_order = 0, .domid = DOMID_SELF }; - reservation.extent_start = (unsigned long)&gmfn; + set_xen_guest_handle(reservation.extent_start, &gmfn); ret = HYPERVISOR_memory_op(XENMEM_decrease_reservation, &reservation); if (ret == 1) diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 76e5b7386af9..332dd63750a0 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -355,7 +355,7 @@ static void unbind_from_irq(unsigned int irq) spin_lock(&irq_mapping_update_lock); - if (VALID_EVTCHN(evtchn) && (--irq_bindcount[irq] == 0)) { + if ((--irq_bindcount[irq] == 0) && VALID_EVTCHN(evtchn)) { close.port = evtchn; if (HYPERVISOR_event_channel_op(EVTCHNOP_close, &close) != 0) BUG(); @@ -375,7 +375,7 @@ static void unbind_from_irq(unsigned int irq) evtchn_to_irq[evtchn] = -1; irq_info[irq] = IRQ_UNBOUND; - dynamic_irq_init(irq); + dynamic_irq_cleanup(irq); } spin_unlock(&irq_mapping_update_lock); @@ -557,6 +557,33 @@ out: put_cpu(); } +/* Rebind a new event channel to an existing irq. */ +void rebind_evtchn_irq(int evtchn, int irq) +{ + /* Make sure the irq is masked, since the new event channel + will also be masked. */ + disable_irq(irq); + + spin_lock(&irq_mapping_update_lock); + + /* After resume the irq<->evtchn mappings are all cleared out */ + BUG_ON(evtchn_to_irq[evtchn] != -1); + /* Expect irq to have been bound before, + so the bindcount should be non-0 */ + BUG_ON(irq_bindcount[irq] == 0); + + evtchn_to_irq[evtchn] = irq; + irq_info[irq] = mk_irq_info(IRQT_EVTCHN, 0, evtchn); + + spin_unlock(&irq_mapping_update_lock); + + /* new event channels are always bound to cpu 0 */ + irq_set_affinity(irq, cpumask_of_cpu(0)); + + /* Unmask the event channel. */ + enable_irq(irq); +} + /* Rebind an evtchn so that it gets delivered to a specific cpu */ static void rebind_irq_to_cpu(unsigned irq, unsigned tcpu) { @@ -647,6 +674,89 @@ static int retrigger_dynirq(unsigned int irq) return ret; } +static void restore_cpu_virqs(unsigned int cpu) +{ + struct evtchn_bind_virq bind_virq; + int virq, irq, evtchn; + + for (virq = 0; virq < NR_VIRQS; virq++) { + if ((irq = per_cpu(virq_to_irq, cpu)[virq]) == -1) + continue; + + BUG_ON(irq_info[irq].type != IRQT_VIRQ); + BUG_ON(irq_info[irq].index != virq); + + /* Get a new binding from Xen. */ + bind_virq.virq = virq; + bind_virq.vcpu = cpu; + if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_virq, + &bind_virq) != 0) + BUG(); + evtchn = bind_virq.port; + + /* Record the new mapping. */ + evtchn_to_irq[evtchn] = irq; + irq_info[irq] = mk_irq_info(IRQT_VIRQ, virq, evtchn); + bind_evtchn_to_cpu(evtchn, cpu); + + /* Ready for use. */ + unmask_evtchn(evtchn); + } +} + +static void restore_cpu_ipis(unsigned int cpu) +{ + struct evtchn_bind_ipi bind_ipi; + int ipi, irq, evtchn; + + for (ipi = 0; ipi < XEN_NR_IPIS; ipi++) { + if ((irq = per_cpu(ipi_to_irq, cpu)[ipi]) == -1) + continue; + + BUG_ON(irq_info[irq].type != IRQT_IPI); + BUG_ON(irq_info[irq].index != ipi); + + /* Get a new binding from Xen. */ + bind_ipi.vcpu = cpu; + if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_ipi, + &bind_ipi) != 0) + BUG(); + evtchn = bind_ipi.port; + + /* Record the new mapping. */ + evtchn_to_irq[evtchn] = irq; + irq_info[irq] = mk_irq_info(IRQT_IPI, ipi, evtchn); + bind_evtchn_to_cpu(evtchn, cpu); + + /* Ready for use. */ + unmask_evtchn(evtchn); + + } +} + +void xen_irq_resume(void) +{ + unsigned int cpu, irq, evtchn; + + init_evtchn_cpu_bindings(); + + /* New event-channel space is not 'live' yet. */ + for (evtchn = 0; evtchn < NR_EVENT_CHANNELS; evtchn++) + mask_evtchn(evtchn); + + /* No IRQ <-> event-channel mappings. */ + for (irq = 0; irq < NR_IRQS; irq++) + irq_info[irq].evtchn = 0; /* zap event-channel binding */ + + for (evtchn = 0; evtchn < NR_EVENT_CHANNELS; evtchn++) + evtchn_to_irq[evtchn] = -1; + + for_each_possible_cpu(cpu) { + restore_cpu_virqs(cpu); + restore_cpu_ipis(cpu); + } +} + static struct irq_chip xen_dynamic_chip __read_mostly = { .name = "xen-dyn", .mask = disable_dynirq, diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 52b6b41b909d..e9e11168616a 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -471,14 +471,14 @@ static int gnttab_map(unsigned int start_idx, unsigned int end_idx) return 0; } -static int gnttab_resume(void) +int gnttab_resume(void) { if (max_nr_grant_frames() < nr_grant_frames) return -ENOSYS; return gnttab_map(0, nr_grant_frames - 1); } -static int gnttab_suspend(void) +int gnttab_suspend(void) { arch_gnttab_unmap_shared(shared, nr_grant_frames); return 0; diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c new file mode 100644 index 000000000000..5b546e365f00 --- /dev/null +++ b/drivers/xen/manage.c @@ -0,0 +1,252 @@ +/* + * Handle extern requests for shutdown, reboot and sysrq + */ +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/reboot.h> +#include <linux/sysrq.h> +#include <linux/stop_machine.h> +#include <linux/freezer.h> + +#include <xen/xenbus.h> +#include <xen/grant_table.h> +#include <xen/events.h> +#include <xen/hvc-console.h> +#include <xen/xen-ops.h> + +#include <asm/xen/hypercall.h> +#include <asm/xen/page.h> + +enum shutdown_state { + SHUTDOWN_INVALID = -1, + SHUTDOWN_POWEROFF = 0, + SHUTDOWN_SUSPEND = 2, + /* Code 3 is SHUTDOWN_CRASH, which we don't use because the domain can only + report a crash, not be instructed to crash! + HALT is the same as POWEROFF, as far as we're concerned. The tools use + the distinction when we return the reason code to them. */ + SHUTDOWN_HALT = 4, +}; + +/* Ignore multiple shutdown requests. */ +static enum shutdown_state shutting_down = SHUTDOWN_INVALID; + +#ifdef CONFIG_PM_SLEEP +static int xen_suspend(void *data) +{ + int *cancelled = data; + int err; + + BUG_ON(!irqs_disabled()); + + load_cr3(swapper_pg_dir); + + err = device_power_down(PMSG_SUSPEND); + if (err) { + printk(KERN_ERR "xen_suspend: device_power_down failed: %d\n", + err); + return err; + } + + xen_mm_pin_all(); + gnttab_suspend(); + xen_pre_suspend(); + + /* + * This hypercall returns 1 if suspend was cancelled + * or the domain was merely checkpointed, and 0 if it + * is resuming in a new domain. + */ + *cancelled = HYPERVISOR_suspend(virt_to_mfn(xen_start_info)); + + xen_post_suspend(*cancelled); + gnttab_resume(); + xen_mm_unpin_all(); + + device_power_up(); + + if (!*cancelled) { + xen_irq_resume(); + xen_console_resume(); + } + + return 0; +} + +static void do_suspend(void) +{ + int err; + int cancelled = 1; + + shutting_down = SHUTDOWN_SUSPEND; + +#ifdef CONFIG_PREEMPT + /* If the kernel is preemptible, we need to freeze all the processes + to prevent them from being in the middle of a pagetable update + during suspend. */ + err = freeze_processes(); + if (err) { + printk(KERN_ERR "xen suspend: freeze failed %d\n", err); + return; + } +#endif + + err = device_suspend(PMSG_SUSPEND); + if (err) { + printk(KERN_ERR "xen suspend: device_suspend %d\n", err); + goto out; + } + + printk("suspending xenbus...\n"); + /* XXX use normal device tree? */ + xenbus_suspend(); + + err = stop_machine_run(xen_suspend, &cancelled, 0); + if (err) { + printk(KERN_ERR "failed to start xen_suspend: %d\n", err); + goto out; + } + + if (!cancelled) + xenbus_resume(); + else + xenbus_suspend_cancel(); + + device_resume(); + + /* Make sure timer events get retriggered on all CPUs */ + clock_was_set(); +out: +#ifdef CONFIG_PREEMPT + thaw_processes(); +#endif + shutting_down = SHUTDOWN_INVALID; +} +#endif /* CONFIG_PM_SLEEP */ + +static void shutdown_handler(struct xenbus_watch *watch, + const char **vec, unsigned int len) +{ + char *str; + struct xenbus_transaction xbt; + int err; + + if (shutting_down != SHUTDOWN_INVALID) + return; + + again: + err = xenbus_transaction_start(&xbt); + if (err) + return; + + str = (char *)xenbus_read(xbt, "control", "shutdown", NULL); + /* Ignore read errors and empty reads. */ + if (XENBUS_IS_ERR_READ(str)) { + xenbus_transaction_end(xbt, 1); + return; + } + + xenbus_write(xbt, "control", "shutdown", ""); + + err = xenbus_transaction_end(xbt, 0); + if (err == -EAGAIN) { + kfree(str); + goto again; + } + + if (strcmp(str, "poweroff") == 0 || + strcmp(str, "halt") == 0) { + shutting_down = SHUTDOWN_POWEROFF; + orderly_poweroff(false); + } else if (strcmp(str, "reboot") == 0) { + shutting_down = SHUTDOWN_POWEROFF; /* ? */ + ctrl_alt_del(); +#ifdef CONFIG_PM_SLEEP + } else if (strcmp(str, "suspend") == 0) { + do_suspend(); +#endif + } else { + printk(KERN_INFO "Ignoring shutdown request: %s\n", str); + shutting_down = SHUTDOWN_INVALID; + } + + kfree(str); +} + +static void sysrq_handler(struct xenbus_watch *watch, const char **vec, + unsigned int len) +{ + char sysrq_key = '\0'; + struct xenbus_transaction xbt; + int err; + + again: + err = xenbus_transaction_start(&xbt); + if (err) + return; + if (!xenbus_scanf(xbt, "control", "sysrq", "%c", &sysrq_key)) { + printk(KERN_ERR "Unable to read sysrq code in " + "control/sysrq\n"); + xenbus_transaction_end(xbt, 1); + return; + } + + if (sysrq_key != '\0') + xenbus_printf(xbt, "control", "sysrq", "%c", '\0'); + + err = xenbus_transaction_end(xbt, 0); + if (err == -EAGAIN) + goto again; + + if (sysrq_key != '\0') + handle_sysrq(sysrq_key, NULL); +} + +static struct xenbus_watch shutdown_watch = { + .node = "control/shutdown", + .callback = shutdown_handler +}; + +static struct xenbus_watch sysrq_watch = { + .node = "control/sysrq", + .callback = sysrq_handler +}; + +static int setup_shutdown_watcher(void) +{ + int err; + + err = register_xenbus_watch(&shutdown_watch); + if (err) { + printk(KERN_ERR "Failed to set shutdown watcher\n"); + return err; + } + + err = register_xenbus_watch(&sysrq_watch); + if (err) { + printk(KERN_ERR "Failed to set sysrq watcher\n"); + return err; + } + + return 0; +} + +static int shutdown_event(struct notifier_block *notifier, + unsigned long event, + void *data) +{ + setup_shutdown_watcher(); + return NOTIFY_DONE; +} + +static int __init setup_shutdown_event(void) +{ + static struct notifier_block xenstore_notifier = { + .notifier_call = shutdown_event + }; + register_xenstore_notifier(&xenstore_notifier); + + return 0; +} + +subsys_initcall(setup_shutdown_event); diff --git a/drivers/xen/xenbus/xenbus_comms.c b/drivers/xen/xenbus/xenbus_comms.c index 6efbe3f29ca5..090c61ee8fd0 100644 --- a/drivers/xen/xenbus/xenbus_comms.c +++ b/drivers/xen/xenbus/xenbus_comms.c @@ -203,7 +203,6 @@ int xb_read(void *data, unsigned len) int xb_init_comms(void) { struct xenstore_domain_interface *intf = xen_store_interface; - int err; if (intf->req_prod != intf->req_cons) printk(KERN_ERR "XENBUS request ring is not quiescent " @@ -216,18 +215,20 @@ int xb_init_comms(void) intf->rsp_cons = intf->rsp_prod; } - if (xenbus_irq) - unbind_from_irqhandler(xenbus_irq, &xb_waitq); + if (xenbus_irq) { + /* Already have an irq; assume we're resuming */ + rebind_evtchn_irq(xen_store_evtchn, xenbus_irq); + } else { + int err; + err = bind_evtchn_to_irqhandler(xen_store_evtchn, wake_waiting, + 0, "xenbus", &xb_waitq); + if (err <= 0) { + printk(KERN_ERR "XENBUS request irq failed %i\n", err); + return err; + } - err = bind_evtchn_to_irqhandler( - xen_store_evtchn, wake_waiting, - 0, "xenbus", &xb_waitq); - if (err <= 0) { - printk(KERN_ERR "XENBUS request irq failed %i\n", err); - return err; + xenbus_irq = err; } - xenbus_irq = err; - return 0; } |