diff options
Diffstat (limited to 'drivers')
65 files changed, 5404 insertions, 581 deletions
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index dcd49f1e96d0..ebd7237230e3 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -39,6 +39,7 @@ config USB_ARCH_HAS_OHCI default y if ARCH_AT91 default y if ARCH_PNX4008 && I2C default y if MFD_TC6393XB + default y if ARCH_W90X900 # PPC: default y if STB03xxx default y if PPC_MPC52xx @@ -58,6 +59,8 @@ config USB_ARCH_HAS_EHCI default y if PPC_83xx default y if SOC_AU1200 default y if ARCH_IXP4XX + default y if ARCH_W90X900 + default y if ARCH_AT91SAM9G45 default PCI # ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface. diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index 19cb7d5480d7..dbe4fb694ad2 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_USB_UHCI_HCD) += host/ obj-$(CONFIG_USB_FHCI_HCD) += host/ obj-$(CONFIG_USB_XHCI_HCD) += host/ obj-$(CONFIG_USB_SL811_HCD) += host/ +obj-$(CONFIG_USB_ISP1362_HCD) += host/ obj-$(CONFIG_USB_U132_HCD) += host/ obj-$(CONFIG_USB_R8A66597_HCD) += host/ obj-$(CONFIG_USB_HWA_HCD) += host/ diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index b09a527f7341..40ef4da786d8 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -86,6 +86,8 @@ struct usbtmc_device_data { bool TermCharEnabled; bool auto_abort; + bool zombie; /* fd of disconnected device */ + struct usbtmc_dev_capabilities capabilities; struct kref kref; struct mutex io_mutex; /* only one i/o function running at a time */ @@ -367,13 +369,13 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, { struct usbtmc_device_data *data; struct device *dev; - unsigned long int n_characters; + u32 n_characters; u8 *buffer; int actual; - int done; - int remaining; + size_t done; + size_t remaining; int retval; - int this_part; + size_t this_part; /* Get pointer to private data structure */ data = filp->private_data; @@ -384,6 +386,10 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, return -ENOMEM; mutex_lock(&data->io_mutex); + if (data->zombie) { + retval = -ENODEV; + goto exit; + } remaining = count; done = 0; @@ -455,6 +461,18 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, (buffer[6] << 16) + (buffer[7] << 24); + /* Ensure the instrument doesn't lie about it */ + if(n_characters > actual - 12) { + dev_err(dev, "Device lies about message size: %u > %d\n", n_characters, actual - 12); + n_characters = actual - 12; + } + + /* Ensure the instrument doesn't send more back than requested */ + if(n_characters > this_part) { + dev_err(dev, "Device returns more than requested: %zu > %zu\n", done + n_characters, done + this_part); + n_characters = this_part; + } + /* Copy buffer to user space */ if (copy_to_user(buf + done, &buffer[12], n_characters)) { /* There must have been an addressing problem */ @@ -465,6 +483,8 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, done += n_characters; if (n_characters < USBTMC_SIZE_IOBUFFER) remaining = 0; + else + remaining -= n_characters; } /* Update file position value */ @@ -496,6 +516,10 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf, return -ENOMEM; mutex_lock(&data->io_mutex); + if (data->zombie) { + retval = -ENODEV; + goto exit; + } remaining = count; done = 0; @@ -925,6 +949,10 @@ static long usbtmc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) data = file->private_data; mutex_lock(&data->io_mutex); + if (data->zombie) { + retval = -ENODEV; + goto skip_io_on_zombie; + } switch (cmd) { case USBTMC_IOCTL_CLEAR_OUT_HALT: @@ -952,6 +980,7 @@ static long usbtmc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) break; } +skip_io_on_zombie: mutex_unlock(&data->io_mutex); return retval; } @@ -995,6 +1024,7 @@ static int usbtmc_probe(struct usb_interface *intf, usb_set_intfdata(intf, data); kref_init(&data->kref); mutex_init(&data->io_mutex); + data->zombie = 0; /* Initialize USBTMC bTag and other fields */ data->bTag = 1; @@ -1065,14 +1095,30 @@ static void usbtmc_disconnect(struct usb_interface *intf) usb_deregister_dev(intf, &usbtmc_class); sysfs_remove_group(&intf->dev.kobj, &capability_attr_grp); sysfs_remove_group(&intf->dev.kobj, &data_attr_grp); + mutex_lock(&data->io_mutex); + data->zombie = 1; + mutex_unlock(&data->io_mutex); kref_put(&data->kref, usbtmc_delete); } +static int usbtmc_suspend (struct usb_interface *intf, pm_message_t message) +{ + /* this driver does not have pending URBs */ + return 0; +} + +static int usbtmc_resume (struct usb_interface *intf) +{ + return 0; +} + static struct usb_driver usbtmc_driver = { .name = "usbtmc", .id_table = usbtmc_devices, .probe = usbtmc_probe, - .disconnect = usbtmc_disconnect + .disconnect = usbtmc_disconnect, + .suspend = usbtmc_suspend, + .resume = usbtmc_resume, }; static int __init usbtmc_init(void) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 4247eccf858c..a1add776e89a 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -52,6 +52,7 @@ #include "hcd.h" /* for usbcore internals */ #include "usb.h" +#include "hub.h" #define USB_MAXBUS 64 #define USB_DEVICE_MAX USB_MAXBUS * 128 @@ -99,11 +100,15 @@ MODULE_PARM_DESC(usbfs_snoop, "true to log all usbfs traffic"); dev_info(dev , format , ## arg); \ } while (0) -#define USB_DEVICE_DEV MKDEV(USB_DEVICE_MAJOR, 0) +enum snoop_when { + SUBMIT, COMPLETE +}; +#define USB_DEVICE_DEV MKDEV(USB_DEVICE_MAJOR, 0) #define MAX_USBFS_BUFFER_SIZE 16384 + static int connected(struct dev_state *ps) { return (!list_empty(&ps->list) && @@ -300,24 +305,42 @@ static struct async *async_getpending(struct dev_state *ps, return NULL; } -static void snoop_urb(struct urb *urb, void __user *userurb) +static void snoop_urb(struct usb_device *udev, + void __user *userurb, int pipe, unsigned length, + int timeout_or_status, enum snoop_when when) { - unsigned j; - unsigned char *data = urb->transfer_buffer; + static const char *types[] = {"isoc", "int", "ctrl", "bulk"}; + static const char *dirs[] = {"out", "in"}; + int ep; + const char *t, *d; if (!usbfs_snoop) return; - dev_info(&urb->dev->dev, "direction=%s\n", - usb_urb_dir_in(urb) ? "IN" : "OUT"); - dev_info(&urb->dev->dev, "userurb=%p\n", userurb); - dev_info(&urb->dev->dev, "transfer_buffer_length=%u\n", - urb->transfer_buffer_length); - dev_info(&urb->dev->dev, "actual_length=%u\n", urb->actual_length); - dev_info(&urb->dev->dev, "data: "); - for (j = 0; j < urb->transfer_buffer_length; ++j) - printk("%02x ", data[j]); - printk("\n"); + ep = usb_pipeendpoint(pipe); + t = types[usb_pipetype(pipe)]; + d = dirs[!!usb_pipein(pipe)]; + + if (userurb) { /* Async */ + if (when == SUBMIT) + dev_info(&udev->dev, "userurb %p, ep%d %s-%s, " + "length %u\n", + userurb, ep, t, d, length); + else + dev_info(&udev->dev, "userurb %p, ep%d %s-%s, " + "actual_length %u status %d\n", + userurb, ep, t, d, length, + timeout_or_status); + } else { + if (when == SUBMIT) + dev_info(&udev->dev, "ep%d %s-%s, length %u, " + "timeout %d\n", + ep, t, d, length, timeout_or_status); + else + dev_info(&udev->dev, "ep%d %s-%s, actual_length %u, " + "status %d\n", + ep, t, d, length, timeout_or_status); + } } static void async_completed(struct urb *urb) @@ -346,7 +369,8 @@ static void async_completed(struct urb *urb) secid = as->secid; } snoop(&urb->dev->dev, "urb complete\n"); - snoop_urb(urb, as->userurb); + snoop_urb(urb->dev, as->userurb, urb->pipe, urb->actual_length, + as->status, COMPLETE); spin_unlock(&ps->lock); if (signr) @@ -655,6 +679,7 @@ static int usbdev_release(struct inode *inode, struct file *file) struct async *as; usb_lock_device(dev); + usb_hub_release_all_ports(dev, ps); /* Protect against simultaneous open */ mutex_lock(&usbfs_mutex); @@ -688,7 +713,7 @@ static int proc_control(struct dev_state *ps, void __user *arg) unsigned int tmo; unsigned char *tbuf; unsigned wLength; - int i, j, ret; + int i, pipe, ret; if (copy_from_user(&ctrl, arg, sizeof(ctrl))) return -EFAULT; @@ -708,24 +733,17 @@ static int proc_control(struct dev_state *ps, void __user *arg) free_page((unsigned long)tbuf); return -EINVAL; } - snoop(&dev->dev, "control read: bRequest=%02x " - "bRrequestType=%02x wValue=%04x " - "wIndex=%04x wLength=%04x\n", - ctrl.bRequest, ctrl.bRequestType, ctrl.wValue, - ctrl.wIndex, ctrl.wLength); + pipe = usb_rcvctrlpipe(dev, 0); + snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT); usb_unlock_device(dev); - i = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ctrl.bRequest, + i = usb_control_msg(dev, pipe, ctrl.bRequest, ctrl.bRequestType, ctrl.wValue, ctrl.wIndex, tbuf, ctrl.wLength, tmo); usb_lock_device(dev); + snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE); + if ((i > 0) && ctrl.wLength) { - if (usbfs_snoop) { - dev_info(&dev->dev, "control read: data "); - for (j = 0; j < i; ++j) - printk("%02x ", (u8)(tbuf)[j]); - printk("\n"); - } if (copy_to_user(ctrl.data, tbuf, i)) { free_page((unsigned long)tbuf); return -EFAULT; @@ -738,22 +756,15 @@ static int proc_control(struct dev_state *ps, void __user *arg) return -EFAULT; } } - snoop(&dev->dev, "control write: bRequest=%02x " - "bRrequestType=%02x wValue=%04x " - "wIndex=%04x wLength=%04x\n", - ctrl.bRequest, ctrl.bRequestType, ctrl.wValue, - ctrl.wIndex, ctrl.wLength); - if (usbfs_snoop) { - dev_info(&dev->dev, "control write: data: "); - for (j = 0; j < ctrl.wLength; ++j) - printk("%02x ", (unsigned char)(tbuf)[j]); - printk("\n"); - } + pipe = usb_sndctrlpipe(dev, 0); + snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT); + usb_unlock_device(dev); i = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ctrl.bRequest, ctrl.bRequestType, ctrl.wValue, ctrl.wIndex, tbuf, ctrl.wLength, tmo); usb_lock_device(dev); + snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE); } free_page((unsigned long)tbuf); if (i < 0 && i != -EPIPE) { @@ -772,7 +783,7 @@ static int proc_bulk(struct dev_state *ps, void __user *arg) unsigned int tmo, len1, pipe; int len2; unsigned char *tbuf; - int i, j, ret; + int i, ret; if (copy_from_user(&bulk, arg, sizeof(bulk))) return -EFAULT; @@ -799,18 +810,14 @@ static int proc_bulk(struct dev_state *ps, void __user *arg) kfree(tbuf); return -EINVAL; } - snoop(&dev->dev, "bulk read: len=0x%02x timeout=%04d\n", - bulk.len, bulk.timeout); + snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT); + usb_unlock_device(dev); i = usb_bulk_msg(dev, pipe, tbuf, len1, &len2, tmo); usb_lock_device(dev); + snoop_urb(dev, NULL, pipe, len2, i, COMPLETE); + if (!i && len2) { - if (usbfs_snoop) { - dev_info(&dev->dev, "bulk read: data "); - for (j = 0; j < len2; ++j) - printk("%02x ", (u8)(tbuf)[j]); - printk("\n"); - } if (copy_to_user(bulk.data, tbuf, len2)) { kfree(tbuf); return -EFAULT; @@ -823,17 +830,12 @@ static int proc_bulk(struct dev_state *ps, void __user *arg) return -EFAULT; } } - snoop(&dev->dev, "bulk write: len=0x%02x timeout=%04d\n", - bulk.len, bulk.timeout); - if (usbfs_snoop) { - dev_info(&dev->dev, "bulk write: data: "); - for (j = 0; j < len1; ++j) - printk("%02x ", (unsigned char)(tbuf)[j]); - printk("\n"); - } + snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT); + usb_unlock_device(dev); i = usb_bulk_msg(dev, pipe, tbuf, len1, &len2, tmo); usb_lock_device(dev); + snoop_urb(dev, NULL, pipe, len2, i, COMPLETE); } kfree(tbuf); if (i < 0) @@ -1051,13 +1053,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, is_in = 0; uurb->endpoint &= ~USB_DIR_IN; } - snoop(&ps->dev->dev, "control urb: bRequest=%02x " - "bRrequestType=%02x wValue=%04x " - "wIndex=%04x wLength=%04x\n", - dr->bRequest, dr->bRequestType, - __le16_to_cpup(&dr->wValue), - __le16_to_cpup(&dr->wIndex), - __le16_to_cpup(&dr->wLength)); break; case USBDEVFS_URB_TYPE_BULK: @@ -1070,7 +1065,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, uurb->number_of_packets = 0; if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE) return -EINVAL; - snoop(&ps->dev->dev, "bulk urb\n"); break; case USBDEVFS_URB_TYPE_ISO: @@ -1102,7 +1096,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, return -EINVAL; } uurb->buffer_length = totlen; - snoop(&ps->dev->dev, "iso urb\n"); break; case USBDEVFS_URB_TYPE_INTERRUPT: @@ -1111,7 +1104,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, return -EINVAL; if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE) return -EINVAL; - snoop(&ps->dev->dev, "interrupt urb\n"); break; default: @@ -1198,11 +1190,14 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, return -EFAULT; } } - snoop_urb(as->urb, as->userurb); + snoop_urb(ps->dev, as->userurb, as->urb->pipe, + as->urb->transfer_buffer_length, 0, SUBMIT); async_newpending(as); if ((ret = usb_submit_urb(as->urb, GFP_KERNEL))) { dev_printk(KERN_DEBUG, &ps->dev->dev, "usbfs: usb_submit_urb returned %d\n", ret); + snoop_urb(ps->dev, as->userurb, as->urb->pipe, + 0, ret, COMPLETE); async_removepending(as); free_async(as); return ret; @@ -1548,6 +1543,29 @@ static int proc_ioctl_compat(struct dev_state *ps, compat_uptr_t arg) } #endif +static int proc_claim_port(struct dev_state *ps, void __user *arg) +{ + unsigned portnum; + int rc; + + if (get_user(portnum, (unsigned __user *) arg)) + return -EFAULT; + rc = usb_hub_claim_port(ps->dev, portnum, ps); + if (rc == 0) + snoop(&ps->dev->dev, "port %d claimed by process %d: %s\n", + portnum, task_pid_nr(current), current->comm); + return rc; +} + +static int proc_release_port(struct dev_state *ps, void __user *arg) +{ + unsigned portnum; + + if (get_user(portnum, (unsigned __user *) arg)) + return -EFAULT; + return usb_hub_release_port(ps->dev, portnum, ps); +} + /* * NOTE: All requests here that have interface numbers as parameters * are assuming that somehow the configuration has been prevented from @@ -1645,7 +1663,7 @@ static int usbdev_ioctl(struct inode *inode, struct file *file, break; case USBDEVFS_REAPURBNDELAY32: - snoop(&dev->dev, "%s: REAPURBDELAY32\n", __func__); + snoop(&dev->dev, "%s: REAPURBNDELAY32\n", __func__); ret = proc_reapurbnonblock_compat(ps, p); break; @@ -1666,7 +1684,7 @@ static int usbdev_ioctl(struct inode *inode, struct file *file, break; case USBDEVFS_REAPURBNDELAY: - snoop(&dev->dev, "%s: REAPURBDELAY\n", __func__); + snoop(&dev->dev, "%s: REAPURBNDELAY\n", __func__); ret = proc_reapurbnonblock(ps, p); break; @@ -1689,6 +1707,16 @@ static int usbdev_ioctl(struct inode *inode, struct file *file, snoop(&dev->dev, "%s: IOCTL\n", __func__); ret = proc_ioctl_default(ps, p); break; + + case USBDEVFS_CLAIM_PORT: + snoop(&dev->dev, "%s: CLAIM_PORT\n", __func__); + ret = proc_claim_port(ps, p); + break; + + case USBDEVFS_RELEASE_PORT: + snoop(&dev->dev, "%s: RELEASE_PORT\n", __func__); + ret = proc_release_port(ps, p); + break; } usb_unlock_device(dev); if (ret >= 0) diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 69e5773abfce..1c976c141f33 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -207,6 +207,9 @@ static int usb_probe_interface(struct device *dev) intf->needs_binding = 0; + if (usb_device_is_owned(udev)) + return -ENODEV; + if (udev->authorized == 0) { dev_err(&intf->dev, "Device is not authorized for usage\n"); return -ENODEV; @@ -232,7 +235,7 @@ static int usb_probe_interface(struct device *dev) /* The interface should always appear to be in use * unless the driver suports autosuspend. */ - intf->pm_usage_cnt = !(driver->supports_autosuspend); + atomic_set(&intf->pm_usage_cnt, !driver->supports_autosuspend); /* Carry out a deferred switch to altsetting 0 */ if (intf->needs_altsetting0) { @@ -344,7 +347,7 @@ int usb_driver_claim_interface(struct usb_driver *driver, usb_pm_lock(udev); iface->condition = USB_INTERFACE_BOUND; mark_active(iface); - iface->pm_usage_cnt = !(driver->supports_autosuspend); + atomic_set(&iface->pm_usage_cnt, !driver->supports_autosuspend); usb_pm_unlock(udev); /* if interface was already added, bind now; else let @@ -1065,7 +1068,7 @@ static int autosuspend_check(struct usb_device *udev, int reschedule) intf = udev->actconfig->interface[i]; if (!is_active(intf)) continue; - if (intf->pm_usage_cnt > 0) + if (atomic_read(&intf->pm_usage_cnt) > 0) return -EBUSY; if (intf->needs_remote_wakeup && !udev->do_remote_wakeup) { @@ -1461,17 +1464,19 @@ static int usb_autopm_do_interface(struct usb_interface *intf, status = -ENODEV; else { udev->auto_pm = 1; - intf->pm_usage_cnt += inc_usage_cnt; + atomic_add(inc_usage_cnt, &intf->pm_usage_cnt); udev->last_busy = jiffies; - if (inc_usage_cnt >= 0 && intf->pm_usage_cnt > 0) { + if (inc_usage_cnt >= 0 && + atomic_read(&intf->pm_usage_cnt) > 0) { if (udev->state == USB_STATE_SUSPENDED) status = usb_resume_both(udev, PMSG_AUTO_RESUME); if (status != 0) - intf->pm_usage_cnt -= inc_usage_cnt; + atomic_sub(inc_usage_cnt, &intf->pm_usage_cnt); else udev->last_busy = jiffies; - } else if (inc_usage_cnt <= 0 && intf->pm_usage_cnt <= 0) { + } else if (inc_usage_cnt <= 0 && + atomic_read(&intf->pm_usage_cnt) <= 0) { status = usb_suspend_both(udev, PMSG_AUTO_SUSPEND); } } @@ -1516,7 +1521,7 @@ void usb_autopm_put_interface(struct usb_interface *intf) status = usb_autopm_do_interface(intf, -1); dev_vdbg(&intf->dev, "%s: status %d cnt %d\n", - __func__, status, intf->pm_usage_cnt); + __func__, status, atomic_read(&intf->pm_usage_cnt)); } EXPORT_SYMBOL_GPL(usb_autopm_put_interface); @@ -1544,10 +1549,10 @@ void usb_autopm_put_interface_async(struct usb_interface *intf) status = -ENODEV; } else { udev->last_busy = jiffies; - --intf->pm_usage_cnt; + atomic_dec(&intf->pm_usage_cnt); if (udev->autosuspend_disabled || udev->autosuspend_delay < 0) status = -EPERM; - else if (intf->pm_usage_cnt <= 0 && + else if (atomic_read(&intf->pm_usage_cnt) <= 0 && !timer_pending(&udev->autosuspend.timer)) { queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend, round_jiffies_up_relative( @@ -1555,7 +1560,7 @@ void usb_autopm_put_interface_async(struct usb_interface *intf) } } dev_vdbg(&intf->dev, "%s: status %d cnt %d\n", - __func__, status, intf->pm_usage_cnt); + __func__, status, atomic_read(&intf->pm_usage_cnt)); } EXPORT_SYMBOL_GPL(usb_autopm_put_interface_async); @@ -1599,7 +1604,7 @@ int usb_autopm_get_interface(struct usb_interface *intf) status = usb_autopm_do_interface(intf, 1); dev_vdbg(&intf->dev, "%s: status %d cnt %d\n", - __func__, status, intf->pm_usage_cnt); + __func__, status, atomic_read(&intf->pm_usage_cnt)); return status; } EXPORT_SYMBOL_GPL(usb_autopm_get_interface); @@ -1627,10 +1632,14 @@ int usb_autopm_get_interface_async(struct usb_interface *intf) status = -ENODEV; else if (udev->autoresume_disabled) status = -EPERM; - else if (++intf->pm_usage_cnt > 0 && udev->state == USB_STATE_SUSPENDED) - queue_work(ksuspend_usb_wq, &udev->autoresume); + else { + atomic_inc(&intf->pm_usage_cnt); + if (atomic_read(&intf->pm_usage_cnt) > 0 && + udev->state == USB_STATE_SUSPENDED) + queue_work(ksuspend_usb_wq, &udev->autoresume); + } dev_vdbg(&intf->dev, "%s: status %d cnt %d\n", - __func__, status, intf->pm_usage_cnt); + __func__, status, atomic_read(&intf->pm_usage_cnt)); return status; } EXPORT_SYMBOL_GPL(usb_autopm_get_interface_async); @@ -1652,7 +1661,7 @@ int usb_autopm_set_interface(struct usb_interface *intf) status = usb_autopm_do_interface(intf, 0); dev_vdbg(&intf->dev, "%s: status %d cnt %d\n", - __func__, status, intf->pm_usage_cnt); + __func__, status, atomic_read(&intf->pm_usage_cnt)); return status; } EXPORT_SYMBOL_GPL(usb_autopm_set_interface); diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c index 30ecac3af15a..05e6d313961e 100644 --- a/drivers/usb/core/generic.c +++ b/drivers/usb/core/generic.c @@ -158,7 +158,9 @@ static int generic_probe(struct usb_device *udev) /* Choose and set the configuration. This registers the interfaces * with the driver core and lets interface drivers bind to them. */ - if (udev->authorized == 0) + if (usb_device_is_owned(udev)) + ; /* Don't configure if the device is owned */ + else if (udev->authorized == 0) dev_err(&udev->dev, "Device is not authorized for usage\n"); else { c = usb_choose_configuration(udev); diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 71f86c60d83c..a880516020f3 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -78,6 +78,7 @@ struct usb_hub { u8 indicator[USB_MAXCHILDREN]; struct delayed_work leds; struct delayed_work init_work; + void **port_owners; }; @@ -162,8 +163,10 @@ static inline char *portspeed(int portstatus) } /* Note that hdev or one of its children must be locked! */ -static inline struct usb_hub *hdev_to_hub(struct usb_device *hdev) +static struct usb_hub *hdev_to_hub(struct usb_device *hdev) { + if (!hdev || !hdev->actconfig) + return NULL; return usb_get_intfdata(hdev->actconfig->interface[0]); } @@ -372,7 +375,7 @@ static void kick_khubd(struct usb_hub *hub) unsigned long flags; /* Suppress autosuspend until khubd runs */ - to_usb_interface(hub->intfdev)->pm_usage_cnt = 1; + atomic_set(&to_usb_interface(hub->intfdev)->pm_usage_cnt, 1); spin_lock_irqsave(&hub_event_lock, flags); if (!hub->disconnected && list_empty(&hub->event_list)) { @@ -384,8 +387,10 @@ static void kick_khubd(struct usb_hub *hub) void usb_kick_khubd(struct usb_device *hdev) { - /* FIXME: What if hdev isn't bound to the hub driver? */ - kick_khubd(hdev_to_hub(hdev)); + struct usb_hub *hub = hdev_to_hub(hdev); + + if (hub) + kick_khubd(hub); } @@ -677,7 +682,8 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) msecs_to_jiffies(delay)); /* Suppress autosuspend until init is done */ - to_usb_interface(hub->intfdev)->pm_usage_cnt = 1; + atomic_set(&to_usb_interface(hub->intfdev)-> + pm_usage_cnt, 1); return; /* Continues at init2: below */ } else { hub_power_on(hub, true); @@ -860,19 +866,17 @@ static int hub_configure(struct usb_hub *hub, u16 wHubCharacteristics; unsigned int pipe; int maxp, ret; - char *message; + char *message = "out of memory"; hub->buffer = usb_buffer_alloc(hdev, sizeof(*hub->buffer), GFP_KERNEL, &hub->buffer_dma); if (!hub->buffer) { - message = "can't allocate hub irq buffer"; ret = -ENOMEM; goto fail; } hub->status = kmalloc(sizeof(*hub->status), GFP_KERNEL); if (!hub->status) { - message = "can't kmalloc hub status buffer"; ret = -ENOMEM; goto fail; } @@ -880,7 +884,6 @@ static int hub_configure(struct usb_hub *hub, hub->descriptor = kmalloc(sizeof(*hub->descriptor), GFP_KERNEL); if (!hub->descriptor) { - message = "can't kmalloc hub descriptor"; ret = -ENOMEM; goto fail; } @@ -904,6 +907,12 @@ static int hub_configure(struct usb_hub *hub, dev_info (hub_dev, "%d port%s detected\n", hdev->maxchild, (hdev->maxchild == 1) ? "" : "s"); + hub->port_owners = kzalloc(hdev->maxchild * sizeof(void *), GFP_KERNEL); + if (!hub->port_owners) { + ret = -ENOMEM; + goto fail; + } + wHubCharacteristics = le16_to_cpu(hub->descriptor->wHubCharacteristics); if (wHubCharacteristics & HUB_CHAR_COMPOUND) { @@ -1082,7 +1091,6 @@ static int hub_configure(struct usb_hub *hub, hub->urb = usb_alloc_urb(0, GFP_KERNEL); if (!hub->urb) { - message = "couldn't allocate interrupt urb"; ret = -ENOMEM; goto fail; } @@ -1131,11 +1139,13 @@ static void hub_disconnect(struct usb_interface *intf) hub_quiesce(hub, HUB_DISCONNECT); usb_set_intfdata (intf, NULL); + hub->hdev->maxchild = 0; if (hub->hdev->speed == USB_SPEED_HIGH) highspeed_hubs--; usb_free_urb(hub->urb); + kfree(hub->port_owners); kfree(hub->descriptor); kfree(hub->status); usb_buffer_free(hub->hdev, sizeof(*hub->buffer), hub->buffer, @@ -1250,6 +1260,79 @@ hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data) } } +/* + * Allow user programs to claim ports on a hub. When a device is attached + * to one of these "claimed" ports, the program will "own" the device. + */ +static int find_port_owner(struct usb_device *hdev, unsigned port1, + void ***ppowner) +{ + if (hdev->state == USB_STATE_NOTATTACHED) + return -ENODEV; + if (port1 == 0 || port1 > hdev->maxchild) + return -EINVAL; + + /* This assumes that devices not managed by the hub driver + * will always have maxchild equal to 0. + */ + *ppowner = &(hdev_to_hub(hdev)->port_owners[port1 - 1]); + return 0; +} + +/* In the following three functions, the caller must hold hdev's lock */ +int usb_hub_claim_port(struct usb_device *hdev, unsigned port1, void *owner) +{ + int rc; + void **powner; + + rc = find_port_owner(hdev, port1, &powner); + if (rc) + return rc; + if (*powner) + return -EBUSY; + *powner = owner; + return rc; +} + +int usb_hub_release_port(struct usb_device *hdev, unsigned port1, void *owner) +{ + int rc; + void **powner; + + rc = find_port_owner(hdev, port1, &powner); + if (rc) + return rc; + if (*powner != owner) + return -ENOENT; + *powner = NULL; + return rc; +} + +void usb_hub_release_all_ports(struct usb_device *hdev, void *owner) +{ + int n; + void **powner; + + n = find_port_owner(hdev, 1, &powner); + if (n == 0) { + for (; n < hdev->maxchild; (++n, ++powner)) { + if (*powner == owner) + *powner = NULL; + } + } +} + +/* The caller must hold udev's lock */ +bool usb_device_is_owned(struct usb_device *udev) +{ + struct usb_hub *hub; + + if (udev->state == USB_STATE_NOTATTACHED || !udev->parent) + return false; + hub = hdev_to_hub(udev->parent); + return !!hub->port_owners[udev->portnum - 1]; +} + static void recursively_mark_NOTATTACHED(struct usb_device *udev) { @@ -2849,14 +2932,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, /* 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; + status = remote_wakeup(udev); #endif } else { diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 9720e699f472..da718e84d58d 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -459,35 +459,23 @@ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev, io->urbs[i]->context = io; /* - * Some systems need to revert to PIO when DMA is - * temporarily unavailable. For their sakes, both - * transfer_buffer and transfer_dma are set when - * possible. However this can only work on systems - * without: + * Some systems need to revert to PIO when DMA is temporarily + * unavailable. For their sakes, both transfer_buffer and + * transfer_dma are set when possible. * - * - HIGHMEM, since DMA buffers located in high memory - * are not directly addressable by the CPU for PIO; - * - * - IOMMU, since dma_map_sg() is allowed to use an - * IOMMU to make virtually discontiguous buffers be - * "dma-contiguous" so that PIO and DMA need diferent - * numbers of URBs. - * - * So when HIGHMEM or IOMMU are in use, transfer_buffer - * is NULL to prevent stale pointers and to help spot - * bugs. + * Note that if IOMMU coalescing occurred, we cannot + * trust sg_page anymore, so check if S/G list shrunk. */ + if (io->nents == io->entries && !PageHighMem(sg_page(sg))) + io->urbs[i]->transfer_buffer = sg_virt(sg); + else + io->urbs[i]->transfer_buffer = NULL; + if (dma) { 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); -#endif } else { /* hc may use _only_ transfer_buffer */ - io->urbs[i]->transfer_buffer = sg_virt(sg); len = sg->length; } diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index c0e0ae2bb8e7..9a8b15e6377a 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -37,6 +37,13 @@ extern int usb_match_device(struct usb_device *dev, extern void usb_forced_unbind_intf(struct usb_interface *intf); extern void usb_rebind_intf(struct usb_interface *intf); +extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port, + void *owner); +extern int usb_hub_release_port(struct usb_device *hdev, unsigned port, + void *owner); +extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner); +extern bool usb_device_is_owned(struct usb_device *udev); + extern int usb_hub_init(void); extern void usb_hub_cleanup(void); extern int usb_major_init(void); diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index b7f10bc25c2c..26cfd0c028c0 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -124,7 +124,7 @@ choice config USB_GADGET_AT91 boolean "Atmel AT91 USB Device Port" - depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 + depends on ARCH_AT91 && !ARCH_AT91SAM9RL && !ARCH_AT91CAP9 && !ARCH_AT91SAM9G45 select USB_GADGET_SELECTED help Many Atmel AT91 processors (such as the AT91RM2000) have a @@ -143,7 +143,7 @@ config USB_AT91 config USB_GADGET_ATMEL_USBA boolean "Atmel USBA" select USB_GADGET_DUALSPEED - depends on AVR32 || ARCH_AT91CAP9 || ARCH_AT91SAM9RL + depends on AVR32 || ARCH_AT91CAP9 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45 help USBA is the integrated high-speed USB Device controller on the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel. diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index 77352ccc245e..d5b65962dd36 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -2378,40 +2378,34 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix) if (!ep->cancel_transfer && !list_empty(&ep->queue)) { req = list_entry(ep->queue.next, struct udc_request, queue); - if (req) { - /* - * length bytes transfered - * check dma done of last desc. in PPBDU mode - */ - if (use_dma_ppb_du) { - td = udc_get_last_dma_desc(req); - if (td) { - dma_done = - AMD_GETBITS(td->status, - UDC_DMA_IN_STS_BS); - /* don't care DMA done */ - req->req.actual = - req->req.length; - } - } else { - /* assume all bytes transferred */ + /* + * length bytes transfered + * check dma done of last desc. in PPBDU mode + */ + if (use_dma_ppb_du) { + td = udc_get_last_dma_desc(req); + if (td) { + dma_done = + AMD_GETBITS(td->status, + UDC_DMA_IN_STS_BS); + /* don't care DMA done */ req->req.actual = req->req.length; } + } else { + /* assume all bytes transferred */ + req->req.actual = req->req.length; + } - if (req->req.actual == req->req.length) { - /* complete req */ - complete_req(ep, req, 0); - req->dma_going = 0; - /* further request available ? */ - if (list_empty(&ep->queue)) { - /* disable interrupt */ - tmp = readl( - &dev->regs->ep_irqmsk); - tmp |= AMD_BIT(ep->num); - writel(tmp, - &dev->regs->ep_irqmsk); - } - + if (req->req.actual == req->req.length) { + /* complete req */ + complete_req(ep, req, 0); + req->dma_going = 0; + /* further request available ? */ + if (list_empty(&ep->queue)) { + /* disable interrupt */ + tmp = readl(&dev->regs->ep_irqmsk); + tmp |= AMD_BIT(ep->num); + writel(tmp, &dev->regs->ep_irqmsk); } } } diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c index 9f80f4e970bd..a3a0f4a27ef0 100644 --- a/drivers/usb/gadget/audio.c +++ b/drivers/usb/gadget/audio.c @@ -106,20 +106,20 @@ static int audio_set_endpoint_req(struct usb_configuration *c, ctrl->bRequest, w_value, len, ep); switch (ctrl->bRequest) { - case SET_CUR: + case UAC_SET_CUR: value = 0; break; - case SET_MIN: + case UAC_SET_MIN: break; - case SET_MAX: + case UAC_SET_MAX: break; - case SET_RES: + case UAC_SET_RES: break; - case SET_MEM: + case UAC_SET_MEM: break; default: @@ -142,13 +142,13 @@ static int audio_get_endpoint_req(struct usb_configuration *c, ctrl->bRequest, w_value, len, ep); switch (ctrl->bRequest) { - case GET_CUR: - case GET_MIN: - case GET_MAX: - case GET_RES: + case UAC_GET_CUR: + case UAC_GET_MIN: + case UAC_GET_MAX: + case UAC_GET_RES: value = 3; break; - case GET_MEM: + case UAC_GET_MEM: break; default: break; @@ -171,11 +171,11 @@ audio_setup(struct usb_configuration *c, const struct usb_ctrlrequest *ctrl) * Audio class messages; interface activation uses set_alt(). */ switch (ctrl->bRequestType) { - case USB_AUDIO_SET_ENDPOINT: + case USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT: value = audio_set_endpoint_req(c, ctrl); break; - case USB_AUDIO_GET_ENDPOINT: + case USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_ENDPOINT: value = audio_get_endpoint_req(c, ctrl); break; diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index a56b24d305f8..5e0966485188 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -1306,11 +1306,6 @@ restart: setup = *(struct usb_ctrlrequest*) urb->setup_packet; w_index = le16_to_cpu(setup.wIndex); w_value = le16_to_cpu(setup.wValue); - if (le16_to_cpu(setup.wLength) != - urb->transfer_buffer_length) { - status = -EOVERFLOW; - goto return_urb; - } /* paranoia, in case of stale queued data */ list_for_each_entry (req, &ep->queue, queue) { diff --git a/drivers/usb/gadget/f_audio.c b/drivers/usb/gadget/f_audio.c index 66527ba2d2ea..98e9bb977291 100644 --- a/drivers/usb/gadget/f_audio.c +++ b/drivers/usb/gadget/f_audio.c @@ -28,6 +28,9 @@ static int audio_buf_size = 48000; module_param(audio_buf_size, int, S_IRUGO); MODULE_PARM_DESC(audio_buf_size, "Audio buffer size"); +static int generic_set_cmd(struct usb_audio_control *con, u8 cmd, int value); +static int generic_get_cmd(struct usb_audio_control *con, u8 cmd); + /* * DESCRIPTORS ... most are static, but strings and full * configuration descriptors are built on demand. @@ -50,16 +53,16 @@ static struct usb_interface_descriptor ac_interface_desc __initdata = { .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL, }; -DECLARE_USB_AC_HEADER_DESCRIPTOR(2); +DECLARE_UAC_AC_HEADER_DESCRIPTOR(2); -#define USB_DT_AC_HEADER_LENGH USB_DT_AC_HEADER_SIZE(F_AUDIO_NUM_INTERFACES) +#define UAC_DT_AC_HEADER_LENGTH UAC_DT_AC_HEADER_SIZE(F_AUDIO_NUM_INTERFACES) /* B.3.2 Class-Specific AC Interface Descriptor */ -static struct usb_ac_header_descriptor_2 ac_header_desc = { - .bLength = USB_DT_AC_HEADER_LENGH, +static struct uac_ac_header_descriptor_2 ac_header_desc = { + .bLength = UAC_DT_AC_HEADER_LENGTH, .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubtype = HEADER, + .bDescriptorSubtype = UAC_HEADER, .bcdADC = __constant_cpu_to_le16(0x0100), - .wTotalLength = __constant_cpu_to_le16(USB_DT_AC_HEADER_LENGH), + .wTotalLength = __constant_cpu_to_le16(UAC_DT_AC_HEADER_LENGTH), .bInCollection = F_AUDIO_NUM_INTERFACES, .baInterfaceNr = { [0] = F_AUDIO_AC_INTERFACE, @@ -68,33 +71,33 @@ static struct usb_ac_header_descriptor_2 ac_header_desc = { }; #define INPUT_TERMINAL_ID 1 -static struct usb_input_terminal_descriptor input_terminal_desc = { - .bLength = USB_DT_AC_INPUT_TERMINAL_SIZE, +static struct uac_input_terminal_descriptor input_terminal_desc = { + .bLength = UAC_DT_INPUT_TERMINAL_SIZE, .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubtype = INPUT_TERMINAL, + .bDescriptorSubtype = UAC_INPUT_TERMINAL, .bTerminalID = INPUT_TERMINAL_ID, - .wTerminalType = USB_AC_TERMINAL_STREAMING, + .wTerminalType = UAC_TERMINAL_STREAMING, .bAssocTerminal = 0, .wChannelConfig = 0x3, }; -DECLARE_USB_AC_FEATURE_UNIT_DESCRIPTOR(0); +DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(0); #define FEATURE_UNIT_ID 2 -static struct usb_ac_feature_unit_descriptor_0 feature_unit_desc = { - .bLength = USB_DT_AC_FEATURE_UNIT_SIZE(0), +static struct uac_feature_unit_descriptor_0 feature_unit_desc = { + .bLength = UAC_DT_FEATURE_UNIT_SIZE(0), .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubtype = FEATURE_UNIT, + .bDescriptorSubtype = UAC_FEATURE_UNIT, .bUnitID = FEATURE_UNIT_ID, .bSourceID = INPUT_TERMINAL_ID, .bControlSize = 2, - .bmaControls[0] = (FU_MUTE | FU_VOLUME), + .bmaControls[0] = (UAC_FU_MUTE | UAC_FU_VOLUME), }; static struct usb_audio_control mute_control = { .list = LIST_HEAD_INIT(mute_control.list), .name = "Mute Control", - .type = MUTE_CONTROL, + .type = UAC_MUTE_CONTROL, /* Todo: add real Mute control code */ .set = generic_set_cmd, .get = generic_get_cmd, @@ -103,7 +106,7 @@ static struct usb_audio_control mute_control = { static struct usb_audio_control volume_control = { .list = LIST_HEAD_INIT(volume_control.list), .name = "Volume Control", - .type = VOLUME_CONTROL, + .type = UAC_VOLUME_CONTROL, /* Todo: add real Volume control code */ .set = generic_set_cmd, .get = generic_get_cmd, @@ -113,17 +116,17 @@ static struct usb_audio_control_selector feature_unit = { .list = LIST_HEAD_INIT(feature_unit.list), .id = FEATURE_UNIT_ID, .name = "Mute & Volume Control", - .type = FEATURE_UNIT, + .type = UAC_FEATURE_UNIT, .desc = (struct usb_descriptor_header *)&feature_unit_desc, }; #define OUTPUT_TERMINAL_ID 3 -static struct usb_output_terminal_descriptor output_terminal_desc = { - .bLength = USB_DT_AC_OUTPUT_TERMINAL_SIZE, +static struct uac_output_terminal_descriptor output_terminal_desc = { + .bLength = UAC_DT_OUTPUT_TERMINAL_SIZE, .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubtype = OUTPUT_TERMINAL, + .bDescriptorSubtype = UAC_OUTPUT_TERMINAL, .bTerminalID = OUTPUT_TERMINAL_ID, - .wTerminalType = USB_AC_OUTPUT_TERMINAL_SPEAKER, + .wTerminalType = UAC_OUTPUT_TERMINAL_SPEAKER, .bAssocTerminal = FEATURE_UNIT_ID, .bSourceID = FEATURE_UNIT_ID, }; @@ -148,22 +151,22 @@ static struct usb_interface_descriptor as_interface_alt_1_desc = { }; /* B.4.2 Class-Specific AS Interface Descriptor */ -static struct usb_as_header_descriptor as_header_desc = { - .bLength = USB_DT_AS_HEADER_SIZE, +static struct uac_as_header_descriptor as_header_desc = { + .bLength = UAC_DT_AS_HEADER_SIZE, .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubtype = AS_GENERAL, + .bDescriptorSubtype = UAC_AS_GENERAL, .bTerminalLink = INPUT_TERMINAL_ID, .bDelay = 1, - .wFormatTag = USB_AS_AUDIO_FORMAT_TYPE_I_PCM, + .wFormatTag = UAC_FORMAT_TYPE_I_PCM, }; -DECLARE_USB_AS_FORMAT_TYPE_I_DISCRETE_DESC(1); +DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(1); -static struct usb_as_formate_type_i_discrete_descriptor_1 as_type_i_desc = { - .bLength = USB_AS_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(1), +static struct uac_format_type_i_discrete_descriptor_1 as_type_i_desc = { + .bLength = UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(1), .bDescriptorType = USB_DT_CS_INTERFACE, - .bDescriptorSubtype = FORMAT_TYPE, - .bFormatType = USB_AS_FORMAT_TYPE_I, + .bDescriptorSubtype = UAC_FORMAT_TYPE, + .bFormatType = UAC_FORMAT_TYPE_I, .bSubframeSize = 2, .bBitResolution = 16, .bSamFreqType = 1, @@ -174,17 +177,17 @@ static struct usb_endpoint_descriptor as_out_ep_desc __initdata = { .bLength = USB_DT_ENDPOINT_AUDIO_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_OUT, - .bmAttributes = USB_AS_ENDPOINT_ADAPTIVE + .bmAttributes = USB_ENDPOINT_SYNC_ADAPTIVE | USB_ENDPOINT_XFER_ISOC, .wMaxPacketSize = __constant_cpu_to_le16(OUT_EP_MAX_PACKET_SIZE), .bInterval = 4, }; /* Class-specific AS ISO OUT Endpoint Descriptor */ -static struct usb_as_iso_endpoint_descriptor as_iso_out_desc __initdata = { - .bLength = USB_AS_ISO_ENDPOINT_DESC_SIZE, +static struct uac_iso_endpoint_descriptor as_iso_out_desc __initdata = { + .bLength = UAC_ISO_ENDPOINT_DESC_SIZE, .bDescriptorType = USB_DT_CS_ENDPOINT, - .bDescriptorSubtype = EP_GENERAL, + .bDescriptorSubtype = UAC_EP_GENERAL, .bmAttributes = 1, .bLockDelayUnits = 1, .wLockDelay = __constant_cpu_to_le16(1), @@ -456,11 +459,11 @@ f_audio_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) * Audio class messages; interface activation uses set_alt(). */ switch (ctrl->bRequestType) { - case USB_AUDIO_SET_INTF: + case USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE: value = audio_set_intf_req(f, ctrl); break; - case USB_AUDIO_GET_INTF: + case USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE: value = audio_get_intf_req(f, ctrl); break; @@ -632,6 +635,18 @@ f_audio_unbind(struct usb_configuration *c, struct usb_function *f) /*-------------------------------------------------------------------------*/ +static int generic_set_cmd(struct usb_audio_control *con, u8 cmd, int value) +{ + con->data[cmd] = value; + + return 0; +} + +static int generic_get_cmd(struct usb_audio_control *con, u8 cmd) +{ + return con->data[cmd]; +} + /* Todo: add more control selecotor dynamically */ int __init control_selector_init(struct f_audio *audio) { @@ -642,10 +657,10 @@ int __init control_selector_init(struct f_audio *audio) list_add(&mute_control.list, &feature_unit.control); list_add(&volume_control.list, &feature_unit.control); - volume_control.data[_CUR] = 0xffc0; - volume_control.data[_MIN] = 0xe3a0; - volume_control.data[_MAX] = 0xfff0; - volume_control.data[_RES] = 0x0030; + volume_control.data[UAC__CUR] = 0xffc0; + volume_control.data[UAC__MIN] = 0xe3a0; + volume_control.data[UAC__MAX] = 0xfff0; + volume_control.data[UAC__RES] = 0x0030; return 0; } diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c index b9312dc6e041..d0b1e836f0e0 100644 --- a/drivers/usb/gadget/gmidi.c +++ b/drivers/usb/gadget/gmidi.c @@ -191,7 +191,7 @@ module_param(qlen, uint, S_IRUGO); #define GMIDI_MS_INTERFACE 1 #define GMIDI_NUM_INTERFACES 2 -DECLARE_USB_AC_HEADER_DESCRIPTOR(1); +DECLARE_UAC_AC_HEADER_DESCRIPTOR(1); DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(1); DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(1); @@ -237,12 +237,12 @@ static const struct usb_interface_descriptor ac_interface_desc = { }; /* B.3.2 Class-Specific AC Interface Descriptor */ -static const struct usb_ac_header_descriptor_1 ac_header_desc = { - .bLength = USB_DT_AC_HEADER_SIZE(1), +static const struct uac_ac_header_descriptor_1 ac_header_desc = { + .bLength = UAC_DT_AC_HEADER_SIZE(1), .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubtype = USB_MS_HEADER, .bcdADC = cpu_to_le16(0x0100), - .wTotalLength = cpu_to_le16(USB_DT_AC_HEADER_SIZE(1)), + .wTotalLength = cpu_to_le16(UAC_DT_AC_HEADER_SIZE(1)), .bInCollection = 1, .baInterfaceNr = { [0] = GMIDI_MS_INTERFACE, diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index ed21e263f832..e6fedbd5a654 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -56,6 +56,7 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> +#include <linux/usb/otg.h> /* * This driver is PXA25x only. Grab the right register definitions. @@ -1008,15 +1009,27 @@ static int pxa25x_udc_pullup(struct usb_gadget *_gadget, int is_active) return 0; } +/* boards may consume current from VBUS, up to 100-500mA based on config. + * the 500uA suspend ceiling means that exclusively vbus-powered PXA designs + * violate USB specs. + */ +static int pxa25x_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA) +{ + struct pxa25x_udc *udc; + + udc = container_of(_gadget, struct pxa25x_udc, gadget); + + if (udc->transceiver) + return otg_set_power(udc->transceiver, mA); + return -EOPNOTSUPP; +} + static const struct usb_gadget_ops pxa25x_udc_ops = { .get_frame = pxa25x_udc_get_frame, .wakeup = pxa25x_udc_wakeup, .vbus_session = pxa25x_udc_vbus_session, .pullup = pxa25x_udc_pullup, - - // .vbus_draw ... boards may consume current from VBUS, up to - // 100-500mA based on config. the 500uA suspend ceiling means - // that exclusively vbus-powered PXA designs violate USB specs. + .vbus_draw = pxa25x_udc_vbus_draw, }; /*-------------------------------------------------------------------------*/ @@ -1303,9 +1316,23 @@ fail: * for set_configuration as well as eventual disconnect. */ DMSG("registered gadget driver '%s'\n", driver->driver.name); + + /* connect to bus through transceiver */ + if (dev->transceiver) { + retval = otg_set_peripheral(dev->transceiver, &dev->gadget); + if (retval) { + DMSG("can't bind to transceiver\n"); + if (driver->unbind) + driver->unbind(&dev->gadget); + goto bind_fail; + } + } + pullup(dev); dump_state(dev); return 0; +bind_fail: + return retval; } EXPORT_SYMBOL(usb_gadget_register_driver); @@ -1351,6 +1378,9 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) stop_activity(dev, driver); local_irq_enable(); + if (dev->transceiver) + (void) otg_set_peripheral(dev->transceiver, NULL); + driver->unbind(&dev->gadget); dev->gadget.dev.driver = NULL; dev->driver = NULL; @@ -2162,6 +2192,8 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev) dev->dev = &pdev->dev; dev->mach = pdev->dev.platform_data; + dev->transceiver = otg_get_transceiver(); + if (gpio_is_valid(dev->mach->gpio_vbus)) { if ((retval = gpio_request(dev->mach->gpio_vbus, "pxa25x_udc GPIO VBUS"))) { @@ -2264,6 +2296,10 @@ lubbock_fail0: if (gpio_is_valid(dev->mach->gpio_vbus)) gpio_free(dev->mach->gpio_vbus); err_gpio_vbus: + if (dev->transceiver) { + otg_put_transceiver(dev->transceiver); + dev->transceiver = NULL; + } clk_put(dev->clk); err_clk: return retval; @@ -2305,6 +2341,11 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev) clk_put(dev->clk); + if (dev->transceiver) { + otg_put_transceiver(dev->transceiver); + dev->transceiver = NULL; + } + platform_set_drvdata(pdev, NULL); the_controller = NULL; return 0; diff --git a/drivers/usb/gadget/pxa25x_udc.h b/drivers/usb/gadget/pxa25x_udc.h index 1d51aa21e6eb..f572c5617462 100644 --- a/drivers/usb/gadget/pxa25x_udc.h +++ b/drivers/usb/gadget/pxa25x_udc.h @@ -128,6 +128,7 @@ struct pxa25x_udc { struct device *dev; struct clk *clk; struct pxa2xx_udc_mach_info *mach; + struct otg_transceiver *transceiver; u64 dma_mask; struct pxa25x_ep ep [PXA_UDC_NUM_ENDPOINTS]; diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 50c71aae2cc2..4b5dbd0127f5 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2392,7 +2392,7 @@ static int s3c_hsotg_corereset(struct s3c_hsotg *hsotg) grstctl = readl(hsotg->regs + S3C_GRSTCTL); } while (!(grstctl & S3C_GRSTCTL_CSftRst) && timeout-- > 0); - if (!grstctl & S3C_GRSTCTL_CSftRst) { + if (!(grstctl & S3C_GRSTCTL_CSftRst)) { dev_err(hsotg->dev, "Failed to get CSftRst asserted\n"); return -EINVAL; } @@ -2514,8 +2514,8 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) * DMA mode we may need this. */ writel(S3C_DOEPMSK_SetupMsk | S3C_DOEPMSK_AHBErrMsk | S3C_DOEPMSK_EPDisbldMsk | - using_dma(hsotg) ? (S3C_DIEPMSK_XferComplMsk | - S3C_DIEPMSK_TimeOUTMsk) : 0, + (using_dma(hsotg) ? (S3C_DIEPMSK_XferComplMsk | + S3C_DIEPMSK_TimeOUTMsk) : 0), hsotg->regs + S3C_DOEPMSK); writel(0, hsotg->regs + S3C_DAINTMSK); diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index f21ca7d27a43..9b43b226817f 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -113,6 +113,12 @@ config USB_EHCI_HCD_PPC_OF Enables support for the USB controller present on the PowerPC OpenFirmware platform bus. +config USB_W90X900_EHCI + bool "W90X900(W90P910) EHCI support" + depends on USB_EHCI_HCD && ARCH_W90X900 + ---help--- + Enables support for the W90X900 USB controller + config USB_OXU210HP_HCD tristate "OXU210HP HCD support" depends on USB @@ -153,6 +159,18 @@ config USB_ISP1760_HCD To compile this driver as a module, choose M here: the module will be called isp1760. +config USB_ISP1362_HCD + tristate "ISP1362 HCD support" + depends on USB + default N + ---help--- + Supports the Philips ISP1362 chip as a host controller + + This driver does not support isochronous transfers. + + To compile this driver as a module, choose M here: the + module will be called isp1362-hcd. + config USB_OHCI_HCD tristate "OHCI HCD support" depends on USB && USB_ARCH_HAS_OHCI diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 289d748bb414..f58b2494c44a 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_PCI) += pci-quirks.o obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o +obj-$(CONFIG_USB_ISP1362_HCD) += isp1362-hcd.o obj-$(CONFIG_USB_OHCI_HCD) += ohci-hcd.o obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_FHCI_HCD) += fhci.o diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c new file mode 100644 index 000000000000..87c1b7c34c0e --- /dev/null +++ b/drivers/usb/host/ehci-atmel.c @@ -0,0 +1,230 @@ +/* + * Driver for EHCI UHP on Atmel chips + * + * Copyright (C) 2009 Atmel Corporation, + * Nicolas Ferre <nicolas.ferre@atmel.com> + * + * Based on various ehci-*.c drivers + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + */ + +#include <linux/clk.h> +#include <linux/platform_device.h> + +/* interface and function clocks */ +static struct clk *iclk, *fclk; +static int clocked; + +/*-------------------------------------------------------------------------*/ + +static void atmel_start_clock(void) +{ + clk_enable(iclk); + clk_enable(fclk); + clocked = 1; +} + +static void atmel_stop_clock(void) +{ + clk_disable(fclk); + clk_disable(iclk); + clocked = 0; +} + +static void atmel_start_ehci(struct platform_device *pdev) +{ + dev_dbg(&pdev->dev, "start\n"); + atmel_start_clock(); +} + +static void atmel_stop_ehci(struct platform_device *pdev) +{ + dev_dbg(&pdev->dev, "stop\n"); + atmel_stop_clock(); +} + +/*-------------------------------------------------------------------------*/ + +static int ehci_atmel_setup(struct usb_hcd *hcd) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + int retval = 0; + + /* registers start at offset 0x0 */ + ehci->caps = hcd->regs; + ehci->regs = hcd->regs + + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); + dbg_hcs_params(ehci, "reset"); + dbg_hcc_params(ehci, "reset"); + + /* cache this readonly data; minimize chip reads */ + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + + retval = ehci_halt(ehci); + if (retval) + return retval; + + /* data structure init */ + retval = ehci_init(hcd); + if (retval) + return retval; + + ehci->sbrn = 0x20; + + ehci_reset(ehci); + ehci_port_power(ehci, 0); + + return retval; +} + +static const struct hc_driver ehci_atmel_hc_driver = { + .description = hcd_name, + .product_desc = "Atmel EHCI UHP HS", + .hcd_priv_size = sizeof(struct ehci_hcd), + + /* generic hardware linkage */ + .irq = ehci_irq, + .flags = HCD_MEMORY | HCD_USB2, + + /* basic lifecycle operations */ + .reset = ehci_atmel_setup, + .start = ehci_run, + .stop = ehci_stop, + .shutdown = ehci_shutdown, + + /* managing i/o requests and associated device resources */ + .urb_enqueue = ehci_urb_enqueue, + .urb_dequeue = ehci_urb_dequeue, + .endpoint_disable = ehci_endpoint_disable, + + /* scheduling support */ + .get_frame_number = ehci_get_frame, + + /* root hub support */ + .hub_status_data = ehci_hub_status_data, + .hub_control = ehci_hub_control, + .bus_suspend = ehci_bus_suspend, + .bus_resume = ehci_bus_resume, + .relinquish_port = ehci_relinquish_port, + .port_handed_over = ehci_port_handed_over, +}; + +static int __init ehci_atmel_drv_probe(struct platform_device *pdev) +{ + struct usb_hcd *hcd; + const struct hc_driver *driver = &ehci_atmel_hc_driver; + struct resource *res; + int irq; + int retval; + + if (usb_disabled()) + return -ENODEV; + + pr_debug("Initializing Atmel-SoC USB Host Controller\n"); + + irq = platform_get_irq(pdev, 0); + if (irq <= 0) { + dev_err(&pdev->dev, + "Found HC with no IRQ. Check %s setup!\n", + dev_name(&pdev->dev)); + retval = -ENODEV; + goto fail_create_hcd; + } + + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); + if (!hcd) { + retval = -ENOMEM; + goto fail_create_hcd; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, + "Found HC with no register addr. Check %s setup!\n", + dev_name(&pdev->dev)); + retval = -ENODEV; + goto fail_request_resource; + } + hcd->rsrc_start = res->start; + hcd->rsrc_len = res->end - res->start + 1; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, + driver->description)) { + dev_dbg(&pdev->dev, "controller already in use\n"); + retval = -EBUSY; + goto fail_request_resource; + } + + hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); + if (hcd->regs == NULL) { + dev_dbg(&pdev->dev, "error mapping memory\n"); + retval = -EFAULT; + goto fail_ioremap; + } + + iclk = clk_get(&pdev->dev, "ehci_clk"); + if (IS_ERR(iclk)) { + dev_err(&pdev->dev, "Error getting interface clock\n"); + retval = -ENOENT; + goto fail_get_iclk; + } + fclk = clk_get(&pdev->dev, "uhpck"); + if (IS_ERR(fclk)) { + dev_err(&pdev->dev, "Error getting function clock\n"); + retval = -ENOENT; + goto fail_get_fclk; + } + + atmel_start_ehci(pdev); + + retval = usb_add_hcd(hcd, irq, IRQF_SHARED); + if (retval) + goto fail_add_hcd; + + return retval; + +fail_add_hcd: + atmel_stop_ehci(pdev); + clk_put(fclk); +fail_get_fclk: + clk_put(iclk); +fail_get_iclk: + iounmap(hcd->regs); +fail_ioremap: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); +fail_request_resource: + usb_put_hcd(hcd); +fail_create_hcd: + dev_err(&pdev->dev, "init %s fail, %d\n", + dev_name(&pdev->dev), retval); + + return retval; +} + +static int __exit ehci_atmel_drv_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + ehci_shutdown(hcd); + usb_remove_hcd(hcd); + iounmap(hcd->regs); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); + + atmel_stop_ehci(pdev); + clk_put(fclk); + clk_put(iclk); + fclk = iclk = NULL; + + return 0; +} + +static struct platform_driver ehci_atmel_driver = { + .probe = ehci_atmel_drv_probe, + .remove = __exit_p(ehci_atmel_drv_remove), + .shutdown = usb_hcd_platform_shutdown, + .driver.name = "atmel-ehci", +}; diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c index 59d208d94d4e..ed77be76d6bb 100644 --- a/drivers/usb/host/ehci-au1xxx.c +++ b/drivers/usb/host/ehci-au1xxx.c @@ -199,10 +199,9 @@ static int ehci_hcd_au1xxx_drv_remove(struct platform_device *pdev) } #ifdef CONFIG_PM -static int ehci_hcd_au1xxx_drv_suspend(struct platform_device *pdev, - pm_message_t message) +static int ehci_hcd_au1xxx_drv_suspend(struct device *dev) { - struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct usb_hcd *hcd = dev_get_drvdata(dev); struct ehci_hcd *ehci = hcd_to_ehci(hcd); unsigned long flags; int rc; @@ -229,12 +228,6 @@ static int ehci_hcd_au1xxx_drv_suspend(struct platform_device *pdev, ehci_writel(ehci, 0, &ehci->regs->intr_enable); (void)ehci_readl(ehci, &ehci->regs->intr_enable); - /* make sure snapshot being resumed re-enumerates everything */ - if (message.event == PM_EVENT_PRETHAW) { - ehci_halt(ehci); - ehci_reset(ehci); - } - clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); au1xxx_stop_ehc(); @@ -248,10 +241,9 @@ bail: return rc; } - -static int ehci_hcd_au1xxx_drv_resume(struct platform_device *pdev) +static int ehci_hcd_au1xxx_drv_resume(struct device *dev) { - struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct usb_hcd *hcd = dev_get_drvdata(dev); struct ehci_hcd *ehci = hcd_to_ehci(hcd); au1xxx_start_ehc(); @@ -305,20 +297,25 @@ static int ehci_hcd_au1xxx_drv_resume(struct platform_device *pdev) return 0; } +static struct dev_pm_ops au1xxx_ehci_pmops = { + .suspend = ehci_hcd_au1xxx_drv_suspend, + .resume = ehci_hcd_au1xxx_drv_resume, +}; + +#define AU1XXX_EHCI_PMOPS &au1xxx_ehci_pmops + #else -#define ehci_hcd_au1xxx_drv_suspend NULL -#define ehci_hcd_au1xxx_drv_resume NULL +#define AU1XXX_EHCI_PMOPS NULL #endif static struct platform_driver ehci_hcd_au1xxx_driver = { .probe = ehci_hcd_au1xxx_drv_probe, .remove = ehci_hcd_au1xxx_drv_remove, .shutdown = usb_hcd_platform_shutdown, - .suspend = ehci_hcd_au1xxx_drv_suspend, - .resume = ehci_hcd_au1xxx_drv_resume, .driver = { .name = "au1xxx-ehci", .owner = THIS_MODULE, + .pm = AU1XXX_EHCI_PMOPS, } }; diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 7f4ace73d44a..874d2000bf92 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -134,10 +134,11 @@ dbg_qtd (const char *label, struct ehci_hcd *ehci, struct ehci_qtd *qtd) static void __maybe_unused dbg_qh (const char *label, struct ehci_hcd *ehci, struct ehci_qh *qh) { + struct ehci_qh_hw *hw = qh->hw; + ehci_dbg (ehci, "%s qh %p n%08x info %x %x qtd %x\n", label, - qh, qh->hw_next, qh->hw_info1, qh->hw_info2, - qh->hw_current); - dbg_qtd ("overlay", ehci, (struct ehci_qtd *) &qh->hw_qtd_next); + qh, hw->hw_next, hw->hw_info1, hw->hw_info2, hw->hw_current); + dbg_qtd("overlay", ehci, (struct ehci_qtd *) &hw->hw_qtd_next); } static void __maybe_unused @@ -400,31 +401,32 @@ static void qh_lines ( char *next = *nextp; char mark; __le32 list_end = EHCI_LIST_END(ehci); + struct ehci_qh_hw *hw = qh->hw; - if (qh->hw_qtd_next == list_end) /* NEC does this */ + if (hw->hw_qtd_next == list_end) /* NEC does this */ mark = '@'; else - mark = token_mark(ehci, qh->hw_token); + mark = token_mark(ehci, hw->hw_token); if (mark == '/') { /* qh_alt_next controls qh advance? */ - if ((qh->hw_alt_next & QTD_MASK(ehci)) - == ehci->async->hw_alt_next) + if ((hw->hw_alt_next & QTD_MASK(ehci)) + == ehci->async->hw->hw_alt_next) mark = '#'; /* blocked */ - else if (qh->hw_alt_next == list_end) + else if (hw->hw_alt_next == list_end) mark = '.'; /* use hw_qtd_next */ /* else alt_next points to some other qtd */ } - scratch = hc32_to_cpup(ehci, &qh->hw_info1); - hw_curr = (mark == '*') ? hc32_to_cpup(ehci, &qh->hw_current) : 0; + scratch = hc32_to_cpup(ehci, &hw->hw_info1); + hw_curr = (mark == '*') ? hc32_to_cpup(ehci, &hw->hw_current) : 0; temp = scnprintf (next, size, "qh/%p dev%d %cs ep%d %08x %08x (%08x%c %s nak%d)", qh, scratch & 0x007f, speed_char (scratch), (scratch >> 8) & 0x000f, - scratch, hc32_to_cpup(ehci, &qh->hw_info2), - hc32_to_cpup(ehci, &qh->hw_token), mark, - (cpu_to_hc32(ehci, QTD_TOGGLE) & qh->hw_token) + scratch, hc32_to_cpup(ehci, &hw->hw_info2), + hc32_to_cpup(ehci, &hw->hw_token), mark, + (cpu_to_hc32(ehci, QTD_TOGGLE) & hw->hw_token) ? "data1" : "data0", - (hc32_to_cpup(ehci, &qh->hw_alt_next) >> 1) & 0x0f); + (hc32_to_cpup(ehci, &hw->hw_alt_next) >> 1) & 0x0f); size -= temp; next += temp; @@ -435,10 +437,10 @@ static void qh_lines ( mark = ' '; if (hw_curr == td->qtd_dma) mark = '*'; - else if (qh->hw_qtd_next == cpu_to_hc32(ehci, td->qtd_dma)) + else if (hw->hw_qtd_next == cpu_to_hc32(ehci, td->qtd_dma)) mark = '+'; else if (QTD_LENGTH (scratch)) { - if (td->hw_alt_next == ehci->async->hw_alt_next) + if (td->hw_alt_next == ehci->async->hw->hw_alt_next) mark = '#'; else if (td->hw_alt_next != list_end) mark = '/'; @@ -550,12 +552,15 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) next += temp; do { + struct ehci_qh_hw *hw; + switch (hc32_to_cpu(ehci, tag)) { case Q_TYPE_QH: + hw = p.qh->hw; temp = scnprintf (next, size, " qh%d-%04x/%p", p.qh->period, hc32_to_cpup(ehci, - &p.qh->hw_info2) + &hw->hw_info2) /* uframe masks */ & (QH_CMASK | QH_SMASK), p.qh); @@ -576,7 +581,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) /* show more info the first time around */ if (temp == seen_count) { u32 scratch = hc32_to_cpup(ehci, - &p.qh->hw_info1); + &hw->hw_info1); struct ehci_qtd *qtd; char *type = ""; @@ -609,7 +614,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) } else temp = 0; if (p.qh) { - tag = Q_NEXT_TYPE(ehci, p.qh->hw_next); + tag = Q_NEXT_TYPE(ehci, hw->hw_next); p = p.qh->qh_next; } break; @@ -879,8 +884,7 @@ static int debug_close(struct inode *inode, struct file *file) struct debug_buffer *buf = file->private_data; if (buf) { - if (buf->output_buf) - vfree(buf->output_buf); + vfree(buf->output_buf); kfree(buf); } diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 11c627ce6022..6887aac5e73d 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -30,7 +30,6 @@ #include <linux/timer.h> #include <linux/list.h> #include <linux/interrupt.h> -#include <linux/reboot.h> #include <linux/usb.h> #include <linux/moduleparam.h> #include <linux/dma-mapping.h> @@ -127,6 +126,8 @@ timer_action(struct ehci_hcd *ehci, enum ehci_timer_action action) switch (action) { case TIMER_IO_WATCHDOG: + if (!ehci->need_io_watchdog) + return; t = EHCI_IO_JIFFIES; break; case TIMER_ASYNC_OFF: @@ -247,6 +248,12 @@ static int ehci_reset (struct ehci_hcd *ehci) retval = handshake (ehci, &ehci->regs->command, CMD_RESET, 0, 250 * 1000); + if (ehci->has_hostpc) { + ehci_writel(ehci, USBMODE_EX_HC | USBMODE_EX_VBPS, + (u32 __iomem *)(((u8 *)ehci->regs) + USBMODE_EX)); + ehci_writel(ehci, TXFIFO_DEFAULT, + (u32 __iomem *)(((u8 *)ehci->regs) + TXFILLTUNING)); + } if (retval) return retval; @@ -505,9 +512,14 @@ static int ehci_init(struct usb_hcd *hcd) u32 temp; int retval; u32 hcc_params; + struct ehci_qh_hw *hw; spin_lock_init(&ehci->lock); + /* + * keep io watchdog by default, those good HCDs could turn off it later + */ + ehci->need_io_watchdog = 1; init_timer(&ehci->watchdog); ehci->watchdog.function = ehci_watchdog; ehci->watchdog.data = (unsigned long) ehci; @@ -544,12 +556,13 @@ static int ehci_init(struct usb_hcd *hcd) * from automatically advancing to the next td after short reads. */ ehci->async->qh_next.qh = NULL; - ehci->async->hw_next = QH_NEXT(ehci, ehci->async->qh_dma); - ehci->async->hw_info1 = cpu_to_hc32(ehci, QH_HEAD); - ehci->async->hw_token = cpu_to_hc32(ehci, QTD_STS_HALT); - ehci->async->hw_qtd_next = EHCI_LIST_END(ehci); + hw = ehci->async->hw; + hw->hw_next = QH_NEXT(ehci, ehci->async->qh_dma); + hw->hw_info1 = cpu_to_hc32(ehci, QH_HEAD); + hw->hw_token = cpu_to_hc32(ehci, QTD_STS_HALT); + hw->hw_qtd_next = EHCI_LIST_END(ehci); ehci->async->qh_state = QH_STATE_LINKED; - ehci->async->hw_alt_next = QTD_NEXT(ehci, ehci->async->dummy->qtd_dma); + hw->hw_alt_next = QTD_NEXT(ehci, ehci->async->dummy->qtd_dma); /* clear interrupt enables, set irq latency */ if (log2_irq_thresh < 0 || log2_irq_thresh > 6) @@ -979,7 +992,7 @@ rescan: /* endpoints can be iso streams. for now, we don't * accelerate iso completions ... so spin a while. */ - if (qh->hw_info1 == 0) { + if (qh->hw->hw_info1 == 0) { ehci_vdbg (ehci, "iso delay\n"); goto idle_timeout; } @@ -1117,6 +1130,16 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ixp4xx_ehci_driver #endif +#ifdef CONFIG_USB_W90X900_EHCI +#include "ehci-w90x900.c" +#define PLATFORM_DRIVER ehci_hcd_w90x900_driver +#endif + +#ifdef CONFIG_ARCH_AT91 +#include "ehci-atmel.c" +#define PLATFORM_DRIVER ehci_atmel_driver +#endif + #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) #error "missing bus glue for ehci-hcd" diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index f46ad27c9a90..6fef1ee7d101 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -111,6 +111,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) struct ehci_hcd *ehci = hcd_to_ehci (hcd); int port; int mask; + u32 __iomem *hostpc_reg = NULL; ehci_dbg(ehci, "suspend root hub\n"); @@ -142,6 +143,9 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) u32 t1 = ehci_readl(ehci, reg) & ~PORT_RWC_BITS; u32 t2 = t1; + if (ehci->has_hostpc) + hostpc_reg = (u32 __iomem *)((u8 *)ehci->regs + + HOSTPC0 + 4 * (port & 0xff)); /* keep track of which ports we suspend */ if (t1 & PORT_OWNER) set_bit(port, &ehci->owned_ports); @@ -151,15 +155,37 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) } /* enable remote wakeup on all ports */ - if (hcd->self.root_hub->do_remote_wakeup) - t2 |= PORT_WAKE_BITS; - else + if (hcd->self.root_hub->do_remote_wakeup) { + /* only enable appropriate wake bits, otherwise the + * hardware can not go phy low power mode. If a race + * condition happens here(connection change during bits + * set), the port change detection will finally fix it. + */ + if (t1 & PORT_CONNECT) { + t2 |= PORT_WKOC_E | PORT_WKDISC_E; + t2 &= ~PORT_WKCONN_E; + } else { + t2 |= PORT_WKOC_E | PORT_WKCONN_E; + t2 &= ~PORT_WKDISC_E; + } + } else t2 &= ~PORT_WAKE_BITS; if (t1 != t2) { ehci_vdbg (ehci, "port %d, %08x -> %08x\n", port + 1, t1, t2); ehci_writel(ehci, t2, reg); + if (hostpc_reg) { + u32 t3; + + msleep(5);/* 5ms for HCD enter low pwr mode */ + t3 = ehci_readl(ehci, hostpc_reg); + ehci_writel(ehci, t3 | HOSTPC_PHCD, hostpc_reg); + t3 = ehci_readl(ehci, hostpc_reg); + ehci_dbg(ehci, "Port%d phy low pwr mode %s\n", + port, (t3 & HOSTPC_PHCD) ? + "succeeded" : "failed"); + } } } @@ -563,7 +589,8 @@ static int ehci_hub_control ( int ports = HCS_N_PORTS (ehci->hcs_params); u32 __iomem *status_reg = &ehci->regs->port_status[ (wIndex & 0xff) - 1]; - u32 temp, status; + u32 __iomem *hostpc_reg = NULL; + u32 temp, temp1, status; unsigned long flags; int retval = 0; unsigned selector; @@ -575,6 +602,9 @@ static int ehci_hub_control ( * power, "this is the one", etc. EHCI spec supports this. */ + if (ehci->has_hostpc) + hostpc_reg = (u32 __iomem *)((u8 *)ehci->regs + + HOSTPC0 + 4 * ((wIndex & 0xff) - 1)); spin_lock_irqsave (&ehci->lock, flags); switch (typeReq) { case ClearHubFeature: @@ -773,7 +803,11 @@ static int ehci_hub_control ( if (temp & PORT_CONNECT) { status |= 1 << USB_PORT_FEAT_CONNECTION; // status may be from integrated TT - status |= ehci_port_speed(ehci, temp); + if (ehci->has_hostpc) { + temp1 = ehci_readl(ehci, hostpc_reg); + status |= ehci_port_speed(ehci, temp1); + } else + status |= ehci_port_speed(ehci, temp); } if (temp & PORT_PE) status |= 1 << USB_PORT_FEAT_ENABLE; @@ -832,6 +866,24 @@ static int ehci_hub_control ( || (temp & PORT_RESET) != 0) goto error; ehci_writel(ehci, temp | PORT_SUSPEND, status_reg); + /* After above check the port must be connected. + * Set appropriate bit thus could put phy into low power + * mode if we have hostpc feature + */ + if (hostpc_reg) { + temp &= ~PORT_WKCONN_E; + temp |= (PORT_WKDISC_E | PORT_WKOC_E); + ehci_writel(ehci, temp | PORT_SUSPEND, + status_reg); + msleep(5);/* 5ms for HCD enter low pwr mode */ + temp1 = ehci_readl(ehci, hostpc_reg); + ehci_writel(ehci, temp1 | HOSTPC_PHCD, + hostpc_reg); + temp1 = ehci_readl(ehci, hostpc_reg); + ehci_dbg(ehci, "Port%d phy low pwr mode %s\n", + wIndex, (temp1 & HOSTPC_PHCD) ? + "succeeded" : "failed"); + } set_bit(wIndex, &ehci->suspended_ports); break; case USB_PORT_FEAT_POWER: diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c index 10d52919abbb..aeda96e0af67 100644 --- a/drivers/usb/host/ehci-mem.c +++ b/drivers/usb/host/ehci-mem.c @@ -75,7 +75,8 @@ static void qh_destroy(struct ehci_qh *qh) } if (qh->dummy) ehci_qtd_free (ehci, qh->dummy); - dma_pool_free (ehci->qh_pool, qh, qh->qh_dma); + dma_pool_free(ehci->qh_pool, qh->hw, qh->qh_dma); + kfree(qh); } static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags) @@ -83,12 +84,14 @@ static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags) struct ehci_qh *qh; dma_addr_t dma; - qh = (struct ehci_qh *) - dma_pool_alloc (ehci->qh_pool, flags, &dma); + qh = kzalloc(sizeof *qh, GFP_ATOMIC); if (!qh) - return qh; - - memset (qh, 0, sizeof *qh); + goto done; + qh->hw = (struct ehci_qh_hw *) + dma_pool_alloc(ehci->qh_pool, flags, &dma); + if (!qh->hw) + goto fail; + memset(qh->hw, 0, sizeof *qh->hw); qh->refcount = 1; qh->ehci = ehci; qh->qh_dma = dma; @@ -99,10 +102,15 @@ static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags) qh->dummy = ehci_qtd_alloc (ehci, flags); if (qh->dummy == NULL) { ehci_dbg (ehci, "no dummy td\n"); - dma_pool_free (ehci->qh_pool, qh, qh->qh_dma); - qh = NULL; + goto fail1; } +done: return qh; +fail1: + dma_pool_free(ehci->qh_pool, qh->hw, qh->qh_dma); +fail: + kfree(qh); + return NULL; } /* to share a qh (cpu threads, or hc) */ @@ -180,7 +188,7 @@ static int ehci_mem_init (struct ehci_hcd *ehci, gfp_t flags) /* QHs for control/bulk/intr transfers */ ehci->qh_pool = dma_pool_create ("ehci_qh", ehci_to_hcd(ehci)->self.controller, - sizeof (struct ehci_qh), + sizeof(struct ehci_qh_hw), 32 /* byte alignment (for hw parts) */, 4096 /* can't cross 4K */); if (!ehci->qh_pool) { diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index b5b83c43898a..a88ad517ec5c 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -129,6 +129,9 @@ static int ehci_pci_setup(struct usb_hcd *hcd) return retval; switch (pdev->vendor) { + case PCI_VENDOR_ID_INTEL: + ehci->need_io_watchdog = 0; + break; case PCI_VENDOR_ID_TDI: if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) { hcd->has_tt = 1; diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 7673554fa64d..377ed530b920 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -87,31 +87,33 @@ qtd_fill(struct ehci_hcd *ehci, struct ehci_qtd *qtd, dma_addr_t buf, static inline void qh_update (struct ehci_hcd *ehci, struct ehci_qh *qh, struct ehci_qtd *qtd) { + struct ehci_qh_hw *hw = qh->hw; + /* writes to an active overlay are unsafe */ BUG_ON(qh->qh_state != QH_STATE_IDLE); - qh->hw_qtd_next = QTD_NEXT(ehci, qtd->qtd_dma); - qh->hw_alt_next = EHCI_LIST_END(ehci); + hw->hw_qtd_next = QTD_NEXT(ehci, qtd->qtd_dma); + hw->hw_alt_next = EHCI_LIST_END(ehci); /* Except for control endpoints, we make hardware maintain data * toggle (like OHCI) ... here (re)initialize the toggle in the QH, * and set the pseudo-toggle in udev. Only usb_clear_halt() will * ever clear it. */ - if (!(qh->hw_info1 & cpu_to_hc32(ehci, 1 << 14))) { + if (!(hw->hw_info1 & cpu_to_hc32(ehci, 1 << 14))) { unsigned is_out, epnum; is_out = !(qtd->hw_token & cpu_to_hc32(ehci, 1 << 8)); - epnum = (hc32_to_cpup(ehci, &qh->hw_info1) >> 8) & 0x0f; + epnum = (hc32_to_cpup(ehci, &hw->hw_info1) >> 8) & 0x0f; if (unlikely (!usb_gettoggle (qh->dev, epnum, is_out))) { - qh->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE); + hw->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE); usb_settoggle (qh->dev, epnum, is_out, 1); } } /* HC must see latest qtd and qh data before we clear ACTIVE+HALT */ wmb (); - qh->hw_token &= cpu_to_hc32(ehci, QTD_TOGGLE | QTD_STS_PING); + hw->hw_token &= cpu_to_hc32(ehci, QTD_TOGGLE | QTD_STS_PING); } /* if it weren't for a common silicon quirk (writing the dummy into the qh @@ -129,7 +131,7 @@ qh_refresh (struct ehci_hcd *ehci, struct ehci_qh *qh) qtd = list_entry (qh->qtd_list.next, struct ehci_qtd, qtd_list); /* first qtd may already be partially processed */ - if (cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw_current) + if (cpu_to_hc32(ehci, qtd->qtd_dma) == qh->hw->hw_current) qtd = NULL; } @@ -260,7 +262,7 @@ __acquires(ehci->lock) struct ehci_qh *qh = (struct ehci_qh *) urb->hcpriv; /* S-mask in a QH means it's an interrupt urb */ - if ((qh->hw_info2 & cpu_to_hc32(ehci, QH_SMASK)) != 0) { + if ((qh->hw->hw_info2 & cpu_to_hc32(ehci, QH_SMASK)) != 0) { /* ... update hc-wide periodic stats (for usbfs) */ ehci_to_hcd(ehci)->self.bandwidth_int_reqs--; @@ -315,6 +317,7 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) unsigned count = 0; u8 state; __le32 halt = HALT_BIT(ehci); + struct ehci_qh_hw *hw = qh->hw; if (unlikely (list_empty (&qh->qtd_list))) return count; @@ -392,7 +395,8 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) qtd->hw_token = cpu_to_hc32(ehci, token); wmb(); - qh->hw_token = cpu_to_hc32(ehci, token); + hw->hw_token = cpu_to_hc32(ehci, + token); goto retry_xacterr; } stopped = 1; @@ -435,8 +439,8 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) /* qh unlinked; token in overlay may be most current */ if (state == QH_STATE_IDLE && cpu_to_hc32(ehci, qtd->qtd_dma) - == qh->hw_current) { - token = hc32_to_cpu(ehci, qh->hw_token); + == hw->hw_current) { + token = hc32_to_cpu(ehci, hw->hw_token); /* An unlink may leave an incomplete * async transaction in the TT buffer. @@ -449,9 +453,9 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh) * patch the qh later and so that completions can't * activate it while we "know" it's stopped. */ - if ((halt & qh->hw_token) == 0) { + if ((halt & hw->hw_token) == 0) { halt: - qh->hw_token |= halt; + hw->hw_token |= halt; wmb (); } } @@ -510,7 +514,7 @@ halt: * it after fault cleanup, or recovering from silicon wrongly * overlaying the dummy qtd (which reduces DMA chatter). */ - if (stopped != 0 || qh->hw_qtd_next == EHCI_LIST_END(ehci)) { + if (stopped != 0 || hw->hw_qtd_next == EHCI_LIST_END(ehci)) { switch (state) { case QH_STATE_IDLE: qh_refresh(ehci, qh); @@ -528,7 +532,7 @@ halt: * except maybe high bandwidth ... */ if ((cpu_to_hc32(ehci, QH_SMASK) - & qh->hw_info2) != 0) { + & hw->hw_info2) != 0) { intr_deschedule (ehci, qh); (void) qh_schedule (ehci, qh); } else @@ -649,7 +653,7 @@ qh_urb_transaction ( * (this will usually be overridden later.) */ if (is_input) - qtd->hw_alt_next = ehci->async->hw_alt_next; + qtd->hw_alt_next = ehci->async->hw->hw_alt_next; /* qh makes control packets use qtd toggle; maybe switch it */ if ((maxpacket & (this_qtd_len + (maxpacket - 1))) == 0) @@ -744,6 +748,7 @@ qh_make ( int is_input, type; int maxp = 0; struct usb_tt *tt = urb->dev->tt; + struct ehci_qh_hw *hw; if (!qh) return qh; @@ -890,8 +895,9 @@ done: /* init as live, toggle clear, advance to dummy */ qh->qh_state = QH_STATE_IDLE; - qh->hw_info1 = cpu_to_hc32(ehci, info1); - qh->hw_info2 = cpu_to_hc32(ehci, info2); + hw = qh->hw; + hw->hw_info1 = cpu_to_hc32(ehci, info1); + hw->hw_info2 = cpu_to_hc32(ehci, info2); usb_settoggle (urb->dev, usb_pipeendpoint (urb->pipe), !is_input, 1); qh_refresh (ehci, qh); return qh; @@ -933,11 +939,11 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh) /* splice right after start */ qh->qh_next = head->qh_next; - qh->hw_next = head->hw_next; + qh->hw->hw_next = head->hw->hw_next; wmb (); head->qh_next.qh = qh; - head->hw_next = dma; + head->hw->hw_next = dma; qh_get(qh); qh->xacterrs = 0; @@ -984,7 +990,7 @@ static struct ehci_qh *qh_append_tds ( /* usb_reset_device() briefly reverts to address 0 */ if (usb_pipedevice (urb->pipe) == 0) - qh->hw_info1 &= ~qh_addr_mask; + qh->hw->hw_info1 &= ~qh_addr_mask; } /* just one way to queue requests: swap with the dummy qtd. @@ -1169,7 +1175,7 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh) while (prev->qh_next.qh != qh) prev = prev->qh_next.qh; - prev->hw_next = qh->hw_next; + prev->hw->hw_next = qh->hw->hw_next; prev->qh_next = qh->qh_next; wmb (); diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index edd61ee90323..327437af2122 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -60,6 +60,20 @@ periodic_next_shadow(struct ehci_hcd *ehci, union ehci_shadow *periodic, } } +static __hc32 * +shadow_next_periodic(struct ehci_hcd *ehci, union ehci_shadow *periodic, + __hc32 tag) +{ + switch (hc32_to_cpu(ehci, tag)) { + /* our ehci_shadow.qh is actually software part */ + case Q_TYPE_QH: + return &periodic->qh->hw->hw_next; + /* others are hw parts */ + default: + return periodic->hw_next; + } +} + /* caller must hold ehci->lock */ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr) { @@ -71,7 +85,8 @@ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr) while (here.ptr && here.ptr != ptr) { prev_p = periodic_next_shadow(ehci, prev_p, Q_NEXT_TYPE(ehci, *hw_p)); - hw_p = here.hw_next; + hw_p = shadow_next_periodic(ehci, &here, + Q_NEXT_TYPE(ehci, *hw_p)); here = *prev_p; } /* an interrupt entry (at list end) could have been shared */ @@ -83,7 +98,7 @@ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr) */ *prev_p = *periodic_next_shadow(ehci, &here, Q_NEXT_TYPE(ehci, *hw_p)); - *hw_p = *here.hw_next; + *hw_p = *shadow_next_periodic(ehci, &here, Q_NEXT_TYPE(ehci, *hw_p)); } /* how many of the uframe's 125 usecs are allocated? */ @@ -93,18 +108,20 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) __hc32 *hw_p = &ehci->periodic [frame]; union ehci_shadow *q = &ehci->pshadow [frame]; unsigned usecs = 0; + struct ehci_qh_hw *hw; while (q->ptr) { switch (hc32_to_cpu(ehci, Q_NEXT_TYPE(ehci, *hw_p))) { case Q_TYPE_QH: + hw = q->qh->hw; /* is it in the S-mask? */ - if (q->qh->hw_info2 & cpu_to_hc32(ehci, 1 << uframe)) + if (hw->hw_info2 & cpu_to_hc32(ehci, 1 << uframe)) usecs += q->qh->usecs; /* ... or C-mask? */ - if (q->qh->hw_info2 & cpu_to_hc32(ehci, + if (hw->hw_info2 & cpu_to_hc32(ehci, 1 << (8 + uframe))) usecs += q->qh->c_usecs; - hw_p = &q->qh->hw_next; + hw_p = &hw->hw_next; q = &q->qh->qh_next; break; // case Q_TYPE_FSTN: @@ -237,10 +254,10 @@ periodic_tt_usecs ( continue; case Q_TYPE_QH: if (same_tt(dev, q->qh->dev)) { - uf = tt_start_uframe(ehci, q->qh->hw_info2); + uf = tt_start_uframe(ehci, q->qh->hw->hw_info2); tt_usecs[uf] += q->qh->tt_usecs; } - hw_p = &q->qh->hw_next; + hw_p = &q->qh->hw->hw_next; q = &q->qh->qh_next; continue; case Q_TYPE_SITD: @@ -375,6 +392,7 @@ static int tt_no_collision ( for (; frame < ehci->periodic_size; frame += period) { union ehci_shadow here; __hc32 type; + struct ehci_qh_hw *hw; here = ehci->pshadow [frame]; type = Q_NEXT_TYPE(ehci, ehci->periodic [frame]); @@ -385,17 +403,18 @@ static int tt_no_collision ( here = here.itd->itd_next; continue; case Q_TYPE_QH: + hw = here.qh->hw; if (same_tt (dev, here.qh->dev)) { u32 mask; mask = hc32_to_cpu(ehci, - here.qh->hw_info2); + hw->hw_info2); /* "knows" no gap is needed */ mask |= mask >> 8; if (mask & uf_mask) break; } - type = Q_NEXT_TYPE(ehci, here.qh->hw_next); + type = Q_NEXT_TYPE(ehci, hw->hw_next); here = here.qh->qh_next; continue; case Q_TYPE_SITD: @@ -498,7 +517,8 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) dev_dbg (&qh->dev->dev, "link qh%d-%04x/%p start %d [%d/%d us]\n", - period, hc32_to_cpup(ehci, &qh->hw_info2) & (QH_CMASK | QH_SMASK), + period, hc32_to_cpup(ehci, &qh->hw->hw_info2) + & (QH_CMASK | QH_SMASK), qh, qh->start, qh->usecs, qh->c_usecs); /* high bandwidth, or otherwise every microframe */ @@ -517,7 +537,7 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) if (type == cpu_to_hc32(ehci, Q_TYPE_QH)) break; prev = periodic_next_shadow(ehci, prev, type); - hw_p = &here.qh->hw_next; + hw_p = shadow_next_periodic(ehci, &here, type); here = *prev; } @@ -528,14 +548,14 @@ static int qh_link_periodic (struct ehci_hcd *ehci, struct ehci_qh *qh) if (qh->period > here.qh->period) break; prev = &here.qh->qh_next; - hw_p = &here.qh->hw_next; + hw_p = &here.qh->hw->hw_next; here = *prev; } /* link in this qh, unless some earlier pass did that */ if (qh != here.qh) { qh->qh_next = here; if (here.qh) - qh->hw_next = *hw_p; + qh->hw->hw_next = *hw_p; wmb (); prev->qh = qh; *hw_p = QH_NEXT (ehci, qh->qh_dma); @@ -581,7 +601,7 @@ static int qh_unlink_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) dev_dbg (&qh->dev->dev, "unlink qh%d-%04x/%p start %d [%d/%d us]\n", qh->period, - hc32_to_cpup(ehci, &qh->hw_info2) & (QH_CMASK | QH_SMASK), + hc32_to_cpup(ehci, &qh->hw->hw_info2) & (QH_CMASK | QH_SMASK), qh, qh->start, qh->usecs, qh->c_usecs); /* qh->qh_next still "live" to HC */ @@ -596,6 +616,7 @@ static int qh_unlink_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) static void intr_deschedule (struct ehci_hcd *ehci, struct ehci_qh *qh) { unsigned wait; + struct ehci_qh_hw *hw = qh->hw; qh_unlink_periodic (ehci, qh); @@ -606,14 +627,14 @@ static void intr_deschedule (struct ehci_hcd *ehci, struct ehci_qh *qh) */ if (list_empty (&qh->qtd_list) || (cpu_to_hc32(ehci, QH_CMASK) - & qh->hw_info2) != 0) + & hw->hw_info2) != 0) wait = 2; else wait = 55; /* worst case: 3 * 1024 */ udelay (wait); qh->qh_state = QH_STATE_IDLE; - qh->hw_next = EHCI_LIST_END(ehci); + hw->hw_next = EHCI_LIST_END(ehci); wmb (); } @@ -739,14 +760,15 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh) unsigned uframe; __hc32 c_mask; unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */ + struct ehci_qh_hw *hw = qh->hw; qh_refresh(ehci, qh); - qh->hw_next = EHCI_LIST_END(ehci); + hw->hw_next = EHCI_LIST_END(ehci); frame = qh->start; /* reuse the previous schedule slots, if we can */ if (frame < qh->period) { - uframe = ffs(hc32_to_cpup(ehci, &qh->hw_info2) & QH_SMASK); + uframe = ffs(hc32_to_cpup(ehci, &hw->hw_info2) & QH_SMASK); status = check_intr_schedule (ehci, frame, --uframe, qh, &c_mask); } else { @@ -784,11 +806,11 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh) qh->start = frame; /* reset S-frame and (maybe) C-frame masks */ - qh->hw_info2 &= cpu_to_hc32(ehci, ~(QH_CMASK | QH_SMASK)); - qh->hw_info2 |= qh->period + hw->hw_info2 &= cpu_to_hc32(ehci, ~(QH_CMASK | QH_SMASK)); + hw->hw_info2 |= qh->period ? cpu_to_hc32(ehci, 1 << uframe) : cpu_to_hc32(ehci, QH_SMASK); - qh->hw_info2 |= c_mask; + hw->hw_info2 |= c_mask; } else ehci_dbg (ehci, "reused qh %p schedule\n", qh); @@ -2188,7 +2210,7 @@ restart: case Q_TYPE_QH: /* handle any completions */ temp.qh = qh_get (q.qh); - type = Q_NEXT_TYPE(ehci, q.qh->hw_next); + type = Q_NEXT_TYPE(ehci, q.qh->hw->hw_next); q = q.qh->qh_next; modified = qh_completions (ehci, temp.qh); if (unlikely (list_empty (&temp.qh->qtd_list))) diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c new file mode 100644 index 000000000000..cfa21ea20f82 --- /dev/null +++ b/drivers/usb/host/ehci-w90x900.c @@ -0,0 +1,181 @@ +/* + * linux/driver/usb/host/ehci-w90x900.c + * + * Copyright (c) 2008 Nuvoton technology corporation. + * + * Wan ZongShun <mcuos.com@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;version 2 of the License. + * + */ + +#include <linux/platform_device.h> + +/*ebable phy0 and phy1 for w90p910*/ +#define ENPHY (0x01<<8) +#define PHY0_CTR (0xA4) +#define PHY1_CTR (0xA8) + +static int __devinit usb_w90x900_probe(const struct hc_driver *driver, + struct platform_device *pdev) +{ + struct usb_hcd *hcd; + struct ehci_hcd *ehci; + struct resource *res; + int retval = 0, irq; + unsigned long val; + + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + retval = -ENXIO; + goto err1; + } + + hcd = usb_create_hcd(driver, &pdev->dev, "w90x900 EHCI"); + if (!hcd) { + retval = -ENOMEM; + goto err1; + } + + hcd->rsrc_start = res->start; + hcd->rsrc_len = res->end - res->start + 1; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { + retval = -EBUSY; + goto err2; + } + + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + if (hcd->regs == NULL) { + retval = -EFAULT; + goto err3; + } + + ehci = hcd_to_ehci(hcd); + ehci->caps = hcd->regs; + ehci->regs = hcd->regs + + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); + + /* enable PHY 0,1,the regs only apply to w90p910 + * 0xA4,0xA8 were offsets of PHY0 and PHY1 controller of + * w90p910 IC relative to ehci->regs. + */ + val = __raw_readl(ehci->regs+PHY0_CTR); + val |= ENPHY; + __raw_writel(val, ehci->regs+PHY0_CTR); + + val = __raw_readl(ehci->regs+PHY1_CTR); + val |= ENPHY; + __raw_writel(val, ehci->regs+PHY1_CTR); + + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + ehci->sbrn = 0x20; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + goto err4; + + retval = usb_add_hcd(hcd, irq, IRQF_SHARED); + if (retval != 0) + goto err4; + + ehci_writel(ehci, 1, &ehci->regs->configured_flag); + + return retval; +err4: + iounmap(hcd->regs); +err3: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); +err2: + usb_put_hcd(hcd); +err1: + return retval; +} + +static +void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev) +{ + usb_remove_hcd(hcd); + iounmap(hcd->regs); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); +} + +static const struct hc_driver ehci_w90x900_hc_driver = { + .description = hcd_name, + .product_desc = "Nuvoton w90x900 EHCI Host Controller", + .hcd_priv_size = sizeof(struct ehci_hcd), + + /* + * generic hardware linkage + */ + .irq = ehci_irq, + .flags = HCD_USB2|HCD_MEMORY, + + /* + * basic lifecycle operations + */ + .reset = ehci_init, + .start = ehci_run, + + .stop = ehci_stop, + .shutdown = ehci_shutdown, + + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = ehci_urb_enqueue, + .urb_dequeue = ehci_urb_dequeue, + .endpoint_disable = ehci_endpoint_disable, + + /* + * scheduling support + */ + .get_frame_number = ehci_get_frame, + + /* + * root hub support + */ + .hub_status_data = ehci_hub_status_data, + .hub_control = ehci_hub_control, +#ifdef CONFIG_PM + .bus_suspend = ehci_bus_suspend, + .bus_resume = ehci_bus_resume, +#endif + .relinquish_port = ehci_relinquish_port, + .port_handed_over = ehci_port_handed_over, +}; + +static int __devinit ehci_w90x900_probe(struct platform_device *pdev) +{ + if (usb_disabled()) + return -ENODEV; + + return usb_w90x900_probe(&ehci_w90x900_hc_driver, pdev); +} + +static int __devexit ehci_w90x900_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + usb_w90x900_remove(hcd, pdev); + + return 0; +} + +static struct platform_driver ehci_hcd_w90x900_driver = { + .probe = ehci_w90x900_probe, + .remove = __devexit_p(ehci_w90x900_remove), + .driver = { + .name = "w90x900-ehci", + .owner = THIS_MODULE, + }, +}; + +MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>"); +MODULE_DESCRIPTION("w90p910 usb ehci driver!"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:w90p910-ehci"); diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 48b9e889a18b..ec3dba6b8e48 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -126,6 +126,7 @@ struct ehci_hcd { /* one per controller */ unsigned big_endian_mmio:1; unsigned big_endian_desc:1; unsigned has_amcc_usb23:1; + unsigned need_io_watchdog:1; /* required for usb32 quirk */ #define OHCI_CTRL_HCFS (3 << 6) @@ -135,6 +136,7 @@ struct ehci_hcd { /* one per controller */ #define OHCI_HCCTRL_OFFSET 0x4 #define OHCI_HCCTRL_LEN 0x4 __hc32 *ohci_hcctrl_reg; + unsigned has_hostpc:1; u8 sbrn; /* packed release number */ @@ -298,8 +300,8 @@ union ehci_shadow { * These appear in both the async and (for interrupt) periodic schedules. */ -struct ehci_qh { - /* first part defined by EHCI spec */ +/* first part defined by EHCI spec */ +struct ehci_qh_hw { __hc32 hw_next; /* see EHCI 3.6.1 */ __hc32 hw_info1; /* see EHCI 3.6.2 */ #define QH_HEAD 0x00008000 @@ -317,7 +319,10 @@ struct ehci_qh { __hc32 hw_token; __hc32 hw_buf [5]; __hc32 hw_buf_hi [5]; +} __attribute__ ((aligned(32))); +struct ehci_qh { + struct ehci_qh_hw *hw; /* the rest is HCD-private */ dma_addr_t qh_dma; /* address of qh */ union ehci_shadow qh_next; /* ptr to qh; or periodic */ @@ -357,7 +362,7 @@ struct ehci_qh { struct usb_device *dev; /* access to TT */ unsigned clearing_tt:1; /* Clear-TT-Buf in progress */ -} __attribute__ ((aligned (32))); +}; /*-------------------------------------------------------------------------*/ @@ -544,7 +549,7 @@ static inline unsigned int ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc) { if (ehci_is_TDI(ehci)) { - switch ((portsc>>26)&3) { + switch ((portsc >> (ehci->has_hostpc ? 25 : 26)) & 3) { case 0: return 0; case 1: diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c new file mode 100644 index 000000000000..5819e10a146c --- /dev/null +++ b/drivers/usb/host/isp1362-hcd.c @@ -0,0 +1,2905 @@ +/* + * ISP1362 HCD (Host Controller Driver) for USB. + * + * Copyright (C) 2005 Lothar Wassmann <LW@KARO-electronics.de> + * + * Derived from the SL811 HCD, rewritten for ISP116x. + * Copyright (C) 2005 Olav Kongas <ok@artecdesign.ee> + * + * Portions: + * Copyright (C) 2004 Psion Teklogix (for NetBook PRO) + * Copyright (C) 2004 David Brownell + */ + +/* + * The ISP1362 chip requires a large delay (300ns and 462ns) between + * accesses to the address and data register. + * The following timing options exist: + * + * 1. Configure your memory controller to add such delays if it can (the best) + * 2. Implement platform-specific delay function possibly + * combined with configuring the memory controller; see + * include/linux/usb_isp1362.h for more info. + * 3. Use ndelay (easiest, poorest). + * + * Use the corresponding macros USE_PLATFORM_DELAY and USE_NDELAY in the + * platform specific section of isp1362.h to select the appropriate variant. + * + * Also note that according to the Philips "ISP1362 Errata" document + * Rev 1.00 from 27 May data corruption may occur when the #WR signal + * is reasserted (even with #CS deasserted) within 132ns after a + * write cycle to any controller register. If the hardware doesn't + * implement the recommended fix (gating the #WR with #CS) software + * must ensure that no further write cycle (not necessarily to the chip!) + * is issued by the CPU within this interval. + + * For PXA25x this can be ensured by using VLIO with the maximum + * recovery time (MSCx = 0x7f8c) with a memory clock of 99.53 MHz. + */ + +#ifdef CONFIG_USB_DEBUG +# define ISP1362_DEBUG +#else +# undef ISP1362_DEBUG +#endif + +/* + * The PXA255 UDC apparently doesn't handle GET_STATUS, GET_CONFIG and + * GET_INTERFACE requests correctly when the SETUP and DATA stages of the + * requests are carried out in separate frames. This will delay any SETUP + * packets until the start of the next frame so that this situation is + * unlikely to occur (and makes usbtest happy running with a PXA255 target + * device). + */ +#undef BUGGY_PXA2XX_UDC_USBTEST + +#undef PTD_TRACE +#undef URB_TRACE +#undef VERBOSE +#undef REGISTERS + +/* This enables a memory test on the ISP1362 chip memory to make sure the + * chip access timing is correct. + */ +#undef CHIP_BUFFER_TEST + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/ioport.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/smp_lock.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/usb.h> +#include <linux/usb/isp1362.h> +#include <linux/platform_device.h> +#include <linux/pm.h> +#include <linux/io.h> +#include <linux/bitops.h> + +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/byteorder.h> +#include <asm/unaligned.h> + +static int dbg_level; +#ifdef ISP1362_DEBUG +module_param(dbg_level, int, 0644); +#else +module_param(dbg_level, int, 0); +#define STUB_DEBUG_FILE +#endif + +#include "../core/hcd.h" +#include "../core/usb.h" +#include "isp1362.h" + + +#define DRIVER_VERSION "2005-04-04" +#define DRIVER_DESC "ISP1362 USB Host Controller Driver" + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +static const char hcd_name[] = "isp1362-hcd"; + +static void isp1362_hc_stop(struct usb_hcd *hcd); +static int isp1362_hc_start(struct usb_hcd *hcd); + +/*-------------------------------------------------------------------------*/ + +/* + * When called from the interrupthandler only isp1362_hcd->irqenb is modified, + * since the interrupt handler will write isp1362_hcd->irqenb to HCuPINT upon + * completion. + * We don't need a 'disable' counterpart, since interrupts will be disabled + * only by the interrupt handler. + */ +static inline void isp1362_enable_int(struct isp1362_hcd *isp1362_hcd, u16 mask) +{ + if ((isp1362_hcd->irqenb | mask) == isp1362_hcd->irqenb) + return; + if (mask & ~isp1362_hcd->irqenb) + isp1362_write_reg16(isp1362_hcd, HCuPINT, mask & ~isp1362_hcd->irqenb); + isp1362_hcd->irqenb |= mask; + if (isp1362_hcd->irq_active) + return; + isp1362_write_reg16(isp1362_hcd, HCuPINTENB, isp1362_hcd->irqenb); +} + +/*-------------------------------------------------------------------------*/ + +static inline struct isp1362_ep_queue *get_ptd_queue(struct isp1362_hcd *isp1362_hcd, + u16 offset) +{ + struct isp1362_ep_queue *epq = NULL; + + if (offset < isp1362_hcd->istl_queue[1].buf_start) + epq = &isp1362_hcd->istl_queue[0]; + else if (offset < isp1362_hcd->intl_queue.buf_start) + epq = &isp1362_hcd->istl_queue[1]; + else if (offset < isp1362_hcd->atl_queue.buf_start) + epq = &isp1362_hcd->intl_queue; + else if (offset < isp1362_hcd->atl_queue.buf_start + + isp1362_hcd->atl_queue.buf_size) + epq = &isp1362_hcd->atl_queue; + + if (epq) + DBG(1, "%s: PTD $%04x is on %s queue\n", __func__, offset, epq->name); + else + pr_warning("%s: invalid PTD $%04x\n", __func__, offset); + + return epq; +} + +static inline int get_ptd_offset(struct isp1362_ep_queue *epq, u8 index) +{ + int offset; + + if (index * epq->blk_size > epq->buf_size) { + pr_warning("%s: Bad %s index %d(%d)\n", __func__, epq->name, index, + epq->buf_size / epq->blk_size); + return -EINVAL; + } + offset = epq->buf_start + index * epq->blk_size; + DBG(3, "%s: %s PTD[%02x] # %04x\n", __func__, epq->name, index, offset); + + return offset; +} + +/*-------------------------------------------------------------------------*/ + +static inline u16 max_transfer_size(struct isp1362_ep_queue *epq, size_t size, + int mps) +{ + u16 xfer_size = min_t(size_t, MAX_XFER_SIZE, size); + + xfer_size = min_t(size_t, xfer_size, epq->buf_avail * epq->blk_size - PTD_HEADER_SIZE); + if (xfer_size < size && xfer_size % mps) + xfer_size -= xfer_size % mps; + + return xfer_size; +} + +static int claim_ptd_buffers(struct isp1362_ep_queue *epq, + struct isp1362_ep *ep, u16 len) +{ + int ptd_offset = -EINVAL; + int index; + int num_ptds = ((len + PTD_HEADER_SIZE - 1) / epq->blk_size) + 1; + int found = -1; + int last = -1; + + BUG_ON(len > epq->buf_size); + + if (!epq->buf_avail) + return -ENOMEM; + + if (ep->num_ptds) + pr_err("%s: %s len %d/%d num_ptds %d buf_map %08lx skip_map %08lx\n", __func__, + epq->name, len, epq->blk_size, num_ptds, epq->buf_map, epq->skip_map); + BUG_ON(ep->num_ptds != 0); + + for (index = 0; index <= epq->buf_count - num_ptds; index++) { + if (test_bit(index, &epq->buf_map)) + continue; + found = index; + for (last = index + 1; last < index + num_ptds; last++) { + if (test_bit(last, &epq->buf_map)) { + found = -1; + break; + } + } + if (found >= 0) + break; + } + if (found < 0) + return -EOVERFLOW; + + DBG(1, "%s: Found %d PTDs[%d] for %d/%d byte\n", __func__, + num_ptds, found, len, (int)(epq->blk_size - PTD_HEADER_SIZE)); + ptd_offset = get_ptd_offset(epq, found); + WARN_ON(ptd_offset < 0); + ep->ptd_offset = ptd_offset; + ep->num_ptds += num_ptds; + epq->buf_avail -= num_ptds; + BUG_ON(epq->buf_avail > epq->buf_count); + ep->ptd_index = found; + for (index = found; index < last; index++) + __set_bit(index, &epq->buf_map); + DBG(1, "%s: Done %s PTD[%d] $%04x, avail %d count %d claimed %d %08lx:%08lx\n", + __func__, epq->name, ep->ptd_index, ep->ptd_offset, + epq->buf_avail, epq->buf_count, num_ptds, epq->buf_map, epq->skip_map); + + return found; +} + +static inline void release_ptd_buffers(struct isp1362_ep_queue *epq, struct isp1362_ep *ep) +{ + int index = ep->ptd_index; + int last = ep->ptd_index + ep->num_ptds; + + if (last > epq->buf_count) + pr_err("%s: ep %p req %d len %d %s PTD[%d] $%04x num_ptds %d buf_count %d buf_avail %d buf_map %08lx skip_map %08lx\n", + __func__, ep, ep->num_req, ep->length, epq->name, ep->ptd_index, + ep->ptd_offset, ep->num_ptds, epq->buf_count, epq->buf_avail, + epq->buf_map, epq->skip_map); + BUG_ON(last > epq->buf_count); + + for (; index < last; index++) { + __clear_bit(index, &epq->buf_map); + __set_bit(index, &epq->skip_map); + } + epq->buf_avail += ep->num_ptds; + epq->ptd_count--; + + BUG_ON(epq->buf_avail > epq->buf_count); + BUG_ON(epq->ptd_count > epq->buf_count); + + DBG(1, "%s: Done %s PTDs $%04x released %d avail %d count %d\n", + __func__, epq->name, + ep->ptd_offset, ep->num_ptds, epq->buf_avail, epq->buf_count); + DBG(1, "%s: buf_map %08lx skip_map %08lx\n", __func__, + epq->buf_map, epq->skip_map); + + ep->num_ptds = 0; + ep->ptd_offset = -EINVAL; + ep->ptd_index = -EINVAL; +} + +/*-------------------------------------------------------------------------*/ + +/* + Set up PTD's. +*/ +static void prepare_ptd(struct isp1362_hcd *isp1362_hcd, struct urb *urb, + struct isp1362_ep *ep, struct isp1362_ep_queue *epq, + u16 fno) +{ + struct ptd *ptd; + int toggle; + int dir; + u16 len; + size_t buf_len = urb->transfer_buffer_length - urb->actual_length; + + DBG(3, "%s: %s ep %p\n", __func__, epq->name, ep); + + ptd = &ep->ptd; + + ep->data = (unsigned char *)urb->transfer_buffer + urb->actual_length; + + switch (ep->nextpid) { + case USB_PID_IN: + toggle = usb_gettoggle(urb->dev, ep->epnum, 0); + dir = PTD_DIR_IN; + if (usb_pipecontrol(urb->pipe)) { + len = min_t(size_t, ep->maxpacket, buf_len); + } else if (usb_pipeisoc(urb->pipe)) { + len = min_t(size_t, urb->iso_frame_desc[fno].length, MAX_XFER_SIZE); + ep->data = urb->transfer_buffer + urb->iso_frame_desc[fno].offset; + } else + len = max_transfer_size(epq, buf_len, ep->maxpacket); + DBG(1, "%s: IN len %d/%d/%d from URB\n", __func__, len, ep->maxpacket, + (int)buf_len); + break; + case USB_PID_OUT: + toggle = usb_gettoggle(urb->dev, ep->epnum, 1); + dir = PTD_DIR_OUT; + if (usb_pipecontrol(urb->pipe)) + len = min_t(size_t, ep->maxpacket, buf_len); + else if (usb_pipeisoc(urb->pipe)) + len = min_t(size_t, urb->iso_frame_desc[0].length, MAX_XFER_SIZE); + else + len = max_transfer_size(epq, buf_len, ep->maxpacket); + if (len == 0) + pr_info("%s: Sending ZERO packet: %d\n", __func__, + urb->transfer_flags & URB_ZERO_PACKET); + DBG(1, "%s: OUT len %d/%d/%d from URB\n", __func__, len, ep->maxpacket, + (int)buf_len); + break; + case USB_PID_SETUP: + toggle = 0; + dir = PTD_DIR_SETUP; + len = sizeof(struct usb_ctrlrequest); + DBG(1, "%s: SETUP len %d\n", __func__, len); + ep->data = urb->setup_packet; + break; + case USB_PID_ACK: + toggle = 1; + len = 0; + dir = (urb->transfer_buffer_length && usb_pipein(urb->pipe)) ? + PTD_DIR_OUT : PTD_DIR_IN; + DBG(1, "%s: ACK len %d\n", __func__, len); + break; + default: + toggle = dir = len = 0; + pr_err("%s@%d: ep->nextpid %02x\n", __func__, __LINE__, ep->nextpid); + BUG_ON(1); + } + + ep->length = len; + if (!len) + ep->data = NULL; + + ptd->count = PTD_CC_MSK | PTD_ACTIVE_MSK | PTD_TOGGLE(toggle); + ptd->mps = PTD_MPS(ep->maxpacket) | PTD_SPD(urb->dev->speed == USB_SPEED_LOW) | + PTD_EP(ep->epnum); + ptd->len = PTD_LEN(len) | PTD_DIR(dir); + ptd->faddr = PTD_FA(usb_pipedevice(urb->pipe)); + + if (usb_pipeint(urb->pipe)) { + ptd->faddr |= PTD_SF_INT(ep->branch); + ptd->faddr |= PTD_PR(ep->interval ? __ffs(ep->interval) : 0); + } + if (usb_pipeisoc(urb->pipe)) + ptd->faddr |= PTD_SF_ISO(fno); + + DBG(1, "%s: Finished\n", __func__); +} + +static void isp1362_write_ptd(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep *ep, + struct isp1362_ep_queue *epq) +{ + struct ptd *ptd = &ep->ptd; + int len = PTD_GET_DIR(ptd) == PTD_DIR_IN ? 0 : ep->length; + + _BUG_ON(ep->ptd_offset < 0); + + prefetch(ptd); + isp1362_write_buffer(isp1362_hcd, ptd, ep->ptd_offset, PTD_HEADER_SIZE); + if (len) + isp1362_write_buffer(isp1362_hcd, ep->data, + ep->ptd_offset + PTD_HEADER_SIZE, len); + + dump_ptd(ptd); + dump_ptd_out_data(ptd, ep->data); +} + +static void isp1362_read_ptd(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep *ep, + struct isp1362_ep_queue *epq) +{ + struct ptd *ptd = &ep->ptd; + int act_len; + + WARN_ON(list_empty(&ep->active)); + BUG_ON(ep->ptd_offset < 0); + + list_del_init(&ep->active); + DBG(1, "%s: ep %p removed from active list %p\n", __func__, ep, &epq->active); + + prefetchw(ptd); + isp1362_read_buffer(isp1362_hcd, ptd, ep->ptd_offset, PTD_HEADER_SIZE); + dump_ptd(ptd); + act_len = PTD_GET_COUNT(ptd); + if (PTD_GET_DIR(ptd) != PTD_DIR_IN || act_len == 0) + return; + if (act_len > ep->length) + pr_err("%s: ep %p PTD $%04x act_len %d ep->length %d\n", __func__, ep, + ep->ptd_offset, act_len, ep->length); + BUG_ON(act_len > ep->length); + /* Only transfer the amount of data that has actually been overwritten + * in the chip buffer. We don't want any data that doesn't belong to the + * transfer to leak out of the chip to the callers transfer buffer! + */ + prefetchw(ep->data); + isp1362_read_buffer(isp1362_hcd, ep->data, + ep->ptd_offset + PTD_HEADER_SIZE, act_len); + dump_ptd_in_data(ptd, ep->data); +} + +/* + * INT PTDs will stay in the chip until data is available. + * This function will remove a PTD from the chip when the URB is dequeued. + * Must be called with the spinlock held and IRQs disabled + */ +static void remove_ptd(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep *ep) + +{ + int index; + struct isp1362_ep_queue *epq; + + DBG(1, "%s: ep %p PTD[%d] $%04x\n", __func__, ep, ep->ptd_index, ep->ptd_offset); + BUG_ON(ep->ptd_offset < 0); + + epq = get_ptd_queue(isp1362_hcd, ep->ptd_offset); + BUG_ON(!epq); + + /* put ep in remove_list for cleanup */ + WARN_ON(!list_empty(&ep->remove_list)); + list_add_tail(&ep->remove_list, &isp1362_hcd->remove_list); + /* let SOF interrupt handle the cleanup */ + isp1362_enable_int(isp1362_hcd, HCuPINT_SOF); + + index = ep->ptd_index; + if (index < 0) + /* ISO queues don't have SKIP registers */ + return; + + DBG(1, "%s: Disabling PTD[%02x] $%04x %08lx|%08x\n", __func__, + index, ep->ptd_offset, epq->skip_map, 1 << index); + + /* prevent further processing of PTD (will be effective after next SOF) */ + epq->skip_map |= 1 << index; + if (epq == &isp1362_hcd->atl_queue) { + DBG(2, "%s: ATLSKIP = %08x -> %08lx\n", __func__, + isp1362_read_reg32(isp1362_hcd, HCATLSKIP), epq->skip_map); + isp1362_write_reg32(isp1362_hcd, HCATLSKIP, epq->skip_map); + if (~epq->skip_map == 0) + isp1362_clr_mask16(isp1362_hcd, HCBUFSTAT, HCBUFSTAT_ATL_ACTIVE); + } else if (epq == &isp1362_hcd->intl_queue) { + DBG(2, "%s: INTLSKIP = %08x -> %08lx\n", __func__, + isp1362_read_reg32(isp1362_hcd, HCINTLSKIP), epq->skip_map); + isp1362_write_reg32(isp1362_hcd, HCINTLSKIP, epq->skip_map); + if (~epq->skip_map == 0) + isp1362_clr_mask16(isp1362_hcd, HCBUFSTAT, HCBUFSTAT_INTL_ACTIVE); + } +} + +/* + Take done or failed requests out of schedule. Give back + processed urbs. +*/ +static void finish_request(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep *ep, + struct urb *urb, int status) + __releases(isp1362_hcd->lock) + __acquires(isp1362_hcd->lock) +{ + urb->hcpriv = NULL; + ep->error_count = 0; + + if (usb_pipecontrol(urb->pipe)) + ep->nextpid = USB_PID_SETUP; + + URB_DBG("%s: req %d FA %d ep%d%s %s: len %d/%d %s stat %d\n", __func__, + ep->num_req, usb_pipedevice(urb->pipe), + usb_pipeendpoint(urb->pipe), + !usb_pipein(urb->pipe) ? "out" : "in", + usb_pipecontrol(urb->pipe) ? "ctrl" : + usb_pipeint(urb->pipe) ? "int" : + usb_pipebulk(urb->pipe) ? "bulk" : + "iso", + urb->actual_length, urb->transfer_buffer_length, + !(urb->transfer_flags & URB_SHORT_NOT_OK) ? + "short_ok" : "", urb->status); + + + usb_hcd_unlink_urb_from_ep(isp1362_hcd_to_hcd(isp1362_hcd), urb); + spin_unlock(&isp1362_hcd->lock); + usb_hcd_giveback_urb(isp1362_hcd_to_hcd(isp1362_hcd), urb, status); + spin_lock(&isp1362_hcd->lock); + + /* take idle endpoints out of the schedule right away */ + if (!list_empty(&ep->hep->urb_list)) + return; + + /* async deschedule */ + if (!list_empty(&ep->schedule)) { + list_del_init(&ep->schedule); + return; + } + + + if (ep->interval) { + /* periodic deschedule */ + DBG(1, "deschedule qh%d/%p branch %d load %d bandwidth %d -> %d\n", ep->interval, + ep, ep->branch, ep->load, + isp1362_hcd->load[ep->branch], + isp1362_hcd->load[ep->branch] - ep->load); + isp1362_hcd->load[ep->branch] -= ep->load; + ep->branch = PERIODIC_SIZE; + } +} + +/* + * Analyze transfer results, handle partial transfers and errors +*/ +static void postproc_ep(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep *ep) +{ + struct urb *urb = get_urb(ep); + struct usb_device *udev; + struct ptd *ptd; + int short_ok; + u16 len; + int urbstat = -EINPROGRESS; + u8 cc; + + DBG(2, "%s: ep %p req %d\n", __func__, ep, ep->num_req); + + udev = urb->dev; + ptd = &ep->ptd; + cc = PTD_GET_CC(ptd); + if (cc == PTD_NOTACCESSED) { + pr_err("%s: req %d PTD %p Untouched by ISP1362\n", __func__, + ep->num_req, ptd); + cc = PTD_DEVNOTRESP; + } + + short_ok = !(urb->transfer_flags & URB_SHORT_NOT_OK); + len = urb->transfer_buffer_length - urb->actual_length; + + /* Data underrun is special. For allowed underrun + we clear the error and continue as normal. For + forbidden underrun we finish the DATA stage + immediately while for control transfer, + we do a STATUS stage. + */ + if (cc == PTD_DATAUNDERRUN) { + if (short_ok) { + DBG(1, "%s: req %d Allowed data underrun short_%sok %d/%d/%d byte\n", + __func__, ep->num_req, short_ok ? "" : "not_", + PTD_GET_COUNT(ptd), ep->maxpacket, len); + cc = PTD_CC_NOERROR; + urbstat = 0; + } else { + DBG(1, "%s: req %d Data Underrun %s nextpid %02x short_%sok %d/%d/%d byte\n", + __func__, ep->num_req, + usb_pipein(urb->pipe) ? "IN" : "OUT", ep->nextpid, + short_ok ? "" : "not_", + PTD_GET_COUNT(ptd), ep->maxpacket, len); + if (usb_pipecontrol(urb->pipe)) { + ep->nextpid = USB_PID_ACK; + /* save the data underrun error code for later and + * procede with the status stage + */ + urb->actual_length += PTD_GET_COUNT(ptd); + BUG_ON(urb->actual_length > urb->transfer_buffer_length); + + if (urb->status == -EINPROGRESS) + urb->status = cc_to_error[PTD_DATAUNDERRUN]; + } else { + usb_settoggle(udev, ep->epnum, ep->nextpid == USB_PID_OUT, + PTD_GET_TOGGLE(ptd)); + urbstat = cc_to_error[PTD_DATAUNDERRUN]; + } + goto out; + } + } + + if (cc != PTD_CC_NOERROR) { + if (++ep->error_count >= 3 || cc == PTD_CC_STALL || cc == PTD_DATAOVERRUN) { + urbstat = cc_to_error[cc]; + DBG(1, "%s: req %d nextpid %02x, status %d, error %d, error_count %d\n", + __func__, ep->num_req, ep->nextpid, urbstat, cc, + ep->error_count); + } + goto out; + } + + switch (ep->nextpid) { + case USB_PID_OUT: + if (PTD_GET_COUNT(ptd) != ep->length) + pr_err("%s: count=%d len=%d\n", __func__, + PTD_GET_COUNT(ptd), ep->length); + BUG_ON(PTD_GET_COUNT(ptd) != ep->length); + urb->actual_length += ep->length; + BUG_ON(urb->actual_length > urb->transfer_buffer_length); + usb_settoggle(udev, ep->epnum, 1, PTD_GET_TOGGLE(ptd)); + if (urb->actual_length == urb->transfer_buffer_length) { + DBG(3, "%s: req %d xfer complete %d/%d status %d -> 0\n", __func__, + ep->num_req, len, ep->maxpacket, urbstat); + if (usb_pipecontrol(urb->pipe)) { + DBG(3, "%s: req %d %s Wait for ACK\n", __func__, + ep->num_req, + usb_pipein(urb->pipe) ? "IN" : "OUT"); + ep->nextpid = USB_PID_ACK; + } else { + if (len % ep->maxpacket || + !(urb->transfer_flags & URB_ZERO_PACKET)) { + urbstat = 0; + DBG(3, "%s: req %d URB %s status %d count %d/%d/%d\n", + __func__, ep->num_req, usb_pipein(urb->pipe) ? "IN" : "OUT", + urbstat, len, ep->maxpacket, urb->actual_length); + } + } + } + break; + case USB_PID_IN: + len = PTD_GET_COUNT(ptd); + BUG_ON(len > ep->length); + urb->actual_length += len; + BUG_ON(urb->actual_length > urb->transfer_buffer_length); + usb_settoggle(udev, ep->epnum, 0, PTD_GET_TOGGLE(ptd)); + /* if transfer completed or (allowed) data underrun */ + if ((urb->transfer_buffer_length == urb->actual_length) || + len % ep->maxpacket) { + DBG(3, "%s: req %d xfer complete %d/%d status %d -> 0\n", __func__, + ep->num_req, len, ep->maxpacket, urbstat); + if (usb_pipecontrol(urb->pipe)) { + DBG(3, "%s: req %d %s Wait for ACK\n", __func__, + ep->num_req, + usb_pipein(urb->pipe) ? "IN" : "OUT"); + ep->nextpid = USB_PID_ACK; + } else { + urbstat = 0; + DBG(3, "%s: req %d URB %s status %d count %d/%d/%d\n", + __func__, ep->num_req, usb_pipein(urb->pipe) ? "IN" : "OUT", + urbstat, len, ep->maxpacket, urb->actual_length); + } + } + break; + case USB_PID_SETUP: + if (urb->transfer_buffer_length == urb->actual_length) { + ep->nextpid = USB_PID_ACK; + } else if (usb_pipeout(urb->pipe)) { + usb_settoggle(udev, 0, 1, 1); + ep->nextpid = USB_PID_OUT; + } else { + usb_settoggle(udev, 0, 0, 1); + ep->nextpid = USB_PID_IN; + } + break; + case USB_PID_ACK: + DBG(3, "%s: req %d got ACK %d -> 0\n", __func__, ep->num_req, + urbstat); + WARN_ON(urbstat != -EINPROGRESS); + urbstat = 0; + ep->nextpid = 0; + break; + default: + BUG_ON(1); + } + + out: + if (urbstat != -EINPROGRESS) { + DBG(2, "%s: Finishing ep %p req %d urb %p status %d\n", __func__, + ep, ep->num_req, urb, urbstat); + finish_request(isp1362_hcd, ep, urb, urbstat); + } +} + +static void finish_unlinks(struct isp1362_hcd *isp1362_hcd) +{ + struct isp1362_ep *ep; + struct isp1362_ep *tmp; + + list_for_each_entry_safe(ep, tmp, &isp1362_hcd->remove_list, remove_list) { + struct isp1362_ep_queue *epq = + get_ptd_queue(isp1362_hcd, ep->ptd_offset); + int index = ep->ptd_index; + + BUG_ON(epq == NULL); + if (index >= 0) { + DBG(1, "%s: remove PTD[%d] $%04x\n", __func__, index, ep->ptd_offset); + BUG_ON(ep->num_ptds == 0); + release_ptd_buffers(epq, ep); + } + if (!list_empty(&ep->hep->urb_list)) { + struct urb *urb = get_urb(ep); + + DBG(1, "%s: Finishing req %d ep %p from remove_list\n", __func__, + ep->num_req, ep); + finish_request(isp1362_hcd, ep, urb, -ESHUTDOWN); + } + WARN_ON(list_empty(&ep->active)); + if (!list_empty(&ep->active)) { + list_del_init(&ep->active); + DBG(1, "%s: ep %p removed from active list\n", __func__, ep); + } + list_del_init(&ep->remove_list); + DBG(1, "%s: ep %p removed from remove_list\n", __func__, ep); + } + DBG(1, "%s: Done\n", __func__); +} + +static inline void enable_atl_transfers(struct isp1362_hcd *isp1362_hcd, int count) +{ + if (count > 0) { + if (count < isp1362_hcd->atl_queue.ptd_count) + isp1362_write_reg16(isp1362_hcd, HCATLDTC, count); + isp1362_enable_int(isp1362_hcd, HCuPINT_ATL); + isp1362_write_reg32(isp1362_hcd, HCATLSKIP, isp1362_hcd->atl_queue.skip_map); + isp1362_set_mask16(isp1362_hcd, HCBUFSTAT, HCBUFSTAT_ATL_ACTIVE); + } else + isp1362_enable_int(isp1362_hcd, HCuPINT_SOF); +} + +static inline void enable_intl_transfers(struct isp1362_hcd *isp1362_hcd) +{ + isp1362_enable_int(isp1362_hcd, HCuPINT_INTL); + isp1362_set_mask16(isp1362_hcd, HCBUFSTAT, HCBUFSTAT_INTL_ACTIVE); + isp1362_write_reg32(isp1362_hcd, HCINTLSKIP, isp1362_hcd->intl_queue.skip_map); +} + +static inline void enable_istl_transfers(struct isp1362_hcd *isp1362_hcd, int flip) +{ + isp1362_enable_int(isp1362_hcd, flip ? HCuPINT_ISTL1 : HCuPINT_ISTL0); + isp1362_set_mask16(isp1362_hcd, HCBUFSTAT, flip ? + HCBUFSTAT_ISTL1_FULL : HCBUFSTAT_ISTL0_FULL); +} + +static int submit_req(struct isp1362_hcd *isp1362_hcd, struct urb *urb, + struct isp1362_ep *ep, struct isp1362_ep_queue *epq) +{ + int index = epq->free_ptd; + + prepare_ptd(isp1362_hcd, urb, ep, epq, 0); + index = claim_ptd_buffers(epq, ep, ep->length); + if (index == -ENOMEM) { + DBG(1, "%s: req %d No free %s PTD available: %d, %08lx:%08lx\n", __func__, + ep->num_req, epq->name, ep->num_ptds, epq->buf_map, epq->skip_map); + return index; + } else if (index == -EOVERFLOW) { + DBG(1, "%s: req %d Not enough space for %d byte %s PTD %d %08lx:%08lx\n", + __func__, ep->num_req, ep->length, epq->name, ep->num_ptds, + epq->buf_map, epq->skip_map); + return index; + } else + BUG_ON(index < 0); + list_add_tail(&ep->active, &epq->active); + DBG(1, "%s: ep %p req %d len %d added to active list %p\n", __func__, + ep, ep->num_req, ep->length, &epq->active); + DBG(1, "%s: Submitting %s PTD $%04x for ep %p req %d\n", __func__, epq->name, + ep->ptd_offset, ep, ep->num_req); + isp1362_write_ptd(isp1362_hcd, ep, epq); + __clear_bit(ep->ptd_index, &epq->skip_map); + + return 0; +} + +static void start_atl_transfers(struct isp1362_hcd *isp1362_hcd) +{ + int ptd_count = 0; + struct isp1362_ep_queue *epq = &isp1362_hcd->atl_queue; + struct isp1362_ep *ep; + int defer = 0; + + if (atomic_read(&epq->finishing)) { + DBG(1, "%s: finish_transfers is active for %s\n", __func__, epq->name); + return; + } + + list_for_each_entry(ep, &isp1362_hcd->async, schedule) { + struct urb *urb = get_urb(ep); + int ret; + + if (!list_empty(&ep->active)) { + DBG(2, "%s: Skipping active %s ep %p\n", __func__, epq->name, ep); + continue; + } + + DBG(1, "%s: Processing %s ep %p req %d\n", __func__, epq->name, + ep, ep->num_req); + + ret = submit_req(isp1362_hcd, urb, ep, epq); + if (ret == -ENOMEM) { + defer = 1; + break; + } else if (ret == -EOVERFLOW) { + defer = 1; + continue; + } +#ifdef BUGGY_PXA2XX_UDC_USBTEST + defer = ep->nextpid == USB_PID_SETUP; +#endif + ptd_count++; + } + + /* Avoid starving of endpoints */ + if (isp1362_hcd->async.next != isp1362_hcd->async.prev) { + DBG(2, "%s: Cycling ASYNC schedule %d\n", __func__, ptd_count); + list_move(&isp1362_hcd->async, isp1362_hcd->async.next); + } + if (ptd_count || defer) + enable_atl_transfers(isp1362_hcd, defer ? 0 : ptd_count); + + epq->ptd_count += ptd_count; + if (epq->ptd_count > epq->stat_maxptds) { + epq->stat_maxptds = epq->ptd_count; + DBG(0, "%s: max_ptds: %d\n", __func__, epq->stat_maxptds); + } +} + +static void start_intl_transfers(struct isp1362_hcd *isp1362_hcd) +{ + int ptd_count = 0; + struct isp1362_ep_queue *epq = &isp1362_hcd->intl_queue; + struct isp1362_ep *ep; + + if (atomic_read(&epq->finishing)) { + DBG(1, "%s: finish_transfers is active for %s\n", __func__, epq->name); + return; + } + + list_for_each_entry(ep, &isp1362_hcd->periodic, schedule) { + struct urb *urb = get_urb(ep); + int ret; + + if (!list_empty(&ep->active)) { + DBG(1, "%s: Skipping active %s ep %p\n", __func__, + epq->name, ep); + continue; + } + + DBG(1, "%s: Processing %s ep %p req %d\n", __func__, + epq->name, ep, ep->num_req); + ret = submit_req(isp1362_hcd, urb, ep, epq); + if (ret == -ENOMEM) + break; + else if (ret == -EOVERFLOW) + continue; + ptd_count++; + } + + if (ptd_count) { + static int last_count; + + if (ptd_count != last_count) { + DBG(0, "%s: ptd_count: %d\n", __func__, ptd_count); + last_count = ptd_count; + } + enable_intl_transfers(isp1362_hcd); + } + + epq->ptd_count += ptd_count; + if (epq->ptd_count > epq->stat_maxptds) + epq->stat_maxptds = epq->ptd_count; +} + +static inline int next_ptd(struct isp1362_ep_queue *epq, struct isp1362_ep *ep) +{ + u16 ptd_offset = ep->ptd_offset; + int num_ptds = (ep->length + PTD_HEADER_SIZE + (epq->blk_size - 1)) / epq->blk_size; + + DBG(2, "%s: PTD offset $%04x + %04x => %d * %04x -> $%04x\n", __func__, ptd_offset, + ep->length, num_ptds, epq->blk_size, ptd_offset + num_ptds * epq->blk_size); + + ptd_offset += num_ptds * epq->blk_size; + if (ptd_offset < epq->buf_start + epq->buf_size) + return ptd_offset; + else + return -ENOMEM; +} + +static void start_iso_transfers(struct isp1362_hcd *isp1362_hcd) +{ + int ptd_count = 0; + int flip = isp1362_hcd->istl_flip; + struct isp1362_ep_queue *epq; + int ptd_offset; + struct isp1362_ep *ep; + struct isp1362_ep *tmp; + u16 fno = isp1362_read_reg32(isp1362_hcd, HCFMNUM); + + fill2: + epq = &isp1362_hcd->istl_queue[flip]; + if (atomic_read(&epq->finishing)) { + DBG(1, "%s: finish_transfers is active for %s\n", __func__, epq->name); + return; + } + + if (!list_empty(&epq->active)) + return; + + ptd_offset = epq->buf_start; + list_for_each_entry_safe(ep, tmp, &isp1362_hcd->isoc, schedule) { + struct urb *urb = get_urb(ep); + s16 diff = fno - (u16)urb->start_frame; + + DBG(1, "%s: Processing %s ep %p\n", __func__, epq->name, ep); + + if (diff > urb->number_of_packets) { + /* time frame for this URB has elapsed */ + finish_request(isp1362_hcd, ep, urb, -EOVERFLOW); + continue; + } else if (diff < -1) { + /* URB is not due in this frame or the next one. + * Comparing with '-1' instead of '0' accounts for double + * buffering in the ISP1362 which enables us to queue the PTD + * one frame ahead of time + */ + } else if (diff == -1) { + /* submit PTD's that are due in the next frame */ + prepare_ptd(isp1362_hcd, urb, ep, epq, fno); + if (ptd_offset + PTD_HEADER_SIZE + ep->length > + epq->buf_start + epq->buf_size) { + pr_err("%s: Not enough ISO buffer space for %d byte PTD\n", + __func__, ep->length); + continue; + } + ep->ptd_offset = ptd_offset; + list_add_tail(&ep->active, &epq->active); + + ptd_offset = next_ptd(epq, ep); + if (ptd_offset < 0) { + pr_warning("%s: req %d No more %s PTD buffers available\n", __func__, + ep->num_req, epq->name); + break; + } + } + } + list_for_each_entry(ep, &epq->active, active) { + if (epq->active.next == &ep->active) + ep->ptd.mps |= PTD_LAST_MSK; + isp1362_write_ptd(isp1362_hcd, ep, epq); + ptd_count++; + } + + if (ptd_count) + enable_istl_transfers(isp1362_hcd, flip); + + epq->ptd_count += ptd_count; + if (epq->ptd_count > epq->stat_maxptds) + epq->stat_maxptds = epq->ptd_count; + + /* check, whether the second ISTL buffer may also be filled */ + if (!(isp1362_read_reg16(isp1362_hcd, HCBUFSTAT) & + (flip ? HCBUFSTAT_ISTL0_FULL : HCBUFSTAT_ISTL1_FULL))) { + fno++; + ptd_count = 0; + flip = 1 - flip; + goto fill2; + } +} + +static void finish_transfers(struct isp1362_hcd *isp1362_hcd, unsigned long done_map, + struct isp1362_ep_queue *epq) +{ + struct isp1362_ep *ep; + struct isp1362_ep *tmp; + + if (list_empty(&epq->active)) { + DBG(1, "%s: Nothing to do for %s queue\n", __func__, epq->name); + return; + } + + DBG(1, "%s: Finishing %s transfers %08lx\n", __func__, epq->name, done_map); + + atomic_inc(&epq->finishing); + list_for_each_entry_safe(ep, tmp, &epq->active, active) { + int index = ep->ptd_index; + + DBG(1, "%s: Checking %s PTD[%02x] $%04x\n", __func__, epq->name, + index, ep->ptd_offset); + + BUG_ON(index < 0); + if (__test_and_clear_bit(index, &done_map)) { + isp1362_read_ptd(isp1362_hcd, ep, epq); + epq->free_ptd = index; + BUG_ON(ep->num_ptds == 0); + release_ptd_buffers(epq, ep); + + DBG(1, "%s: ep %p req %d removed from active list\n", __func__, + ep, ep->num_req); + if (!list_empty(&ep->remove_list)) { + list_del_init(&ep->remove_list); + DBG(1, "%s: ep %p removed from remove list\n", __func__, ep); + } + DBG(1, "%s: Postprocessing %s ep %p req %d\n", __func__, epq->name, + ep, ep->num_req); + postproc_ep(isp1362_hcd, ep); + } + if (!done_map) + break; + } + if (done_map) + pr_warning("%s: done_map not clear: %08lx:%08lx\n", __func__, done_map, + epq->skip_map); + atomic_dec(&epq->finishing); +} + +static void finish_iso_transfers(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep_queue *epq) +{ + struct isp1362_ep *ep; + struct isp1362_ep *tmp; + + if (list_empty(&epq->active)) { + DBG(1, "%s: Nothing to do for %s queue\n", __func__, epq->name); + return; + } + + DBG(1, "%s: Finishing %s transfers\n", __func__, epq->name); + + atomic_inc(&epq->finishing); + list_for_each_entry_safe(ep, tmp, &epq->active, active) { + DBG(1, "%s: Checking PTD $%04x\n", __func__, ep->ptd_offset); + + isp1362_read_ptd(isp1362_hcd, ep, epq); + DBG(1, "%s: Postprocessing %s ep %p\n", __func__, epq->name, ep); + postproc_ep(isp1362_hcd, ep); + } + WARN_ON(epq->blk_size != 0); + atomic_dec(&epq->finishing); +} + +static irqreturn_t isp1362_irq(struct usb_hcd *hcd) +{ + int handled = 0; + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + u16 irqstat; + u16 svc_mask; + + spin_lock(&isp1362_hcd->lock); + + BUG_ON(isp1362_hcd->irq_active++); + + isp1362_write_reg16(isp1362_hcd, HCuPINTENB, 0); + + irqstat = isp1362_read_reg16(isp1362_hcd, HCuPINT); + DBG(3, "%s: got IRQ %04x:%04x\n", __func__, irqstat, isp1362_hcd->irqenb); + + /* only handle interrupts that are currently enabled */ + irqstat &= isp1362_hcd->irqenb; + isp1362_write_reg16(isp1362_hcd, HCuPINT, irqstat); + svc_mask = irqstat; + + if (irqstat & HCuPINT_SOF) { + isp1362_hcd->irqenb &= ~HCuPINT_SOF; + isp1362_hcd->irq_stat[ISP1362_INT_SOF]++; + handled = 1; + svc_mask &= ~HCuPINT_SOF; + DBG(3, "%s: SOF\n", __func__); + isp1362_hcd->fmindex = isp1362_read_reg32(isp1362_hcd, HCFMNUM); + if (!list_empty(&isp1362_hcd->remove_list)) + finish_unlinks(isp1362_hcd); + if (!list_empty(&isp1362_hcd->async) && !(irqstat & HCuPINT_ATL)) { + if (list_empty(&isp1362_hcd->atl_queue.active)) { + start_atl_transfers(isp1362_hcd); + } else { + isp1362_enable_int(isp1362_hcd, HCuPINT_ATL); + isp1362_write_reg32(isp1362_hcd, HCATLSKIP, + isp1362_hcd->atl_queue.skip_map); + isp1362_set_mask16(isp1362_hcd, HCBUFSTAT, HCBUFSTAT_ATL_ACTIVE); + } + } + } + + if (irqstat & HCuPINT_ISTL0) { + isp1362_hcd->irq_stat[ISP1362_INT_ISTL0]++; + handled = 1; + svc_mask &= ~HCuPINT_ISTL0; + isp1362_clr_mask16(isp1362_hcd, HCBUFSTAT, HCBUFSTAT_ISTL0_FULL); + DBG(1, "%s: ISTL0\n", __func__); + WARN_ON((int)!!isp1362_hcd->istl_flip); + WARN_ON(isp1362_read_reg16(isp1362_hcd, HCBUFSTAT) & HCBUFSTAT_ISTL0_ACTIVE); + WARN_ON(!isp1362_read_reg16(isp1362_hcd, HCBUFSTAT) & HCBUFSTAT_ISTL0_DONE); + isp1362_hcd->irqenb &= ~HCuPINT_ISTL0; + } + + if (irqstat & HCuPINT_ISTL1) { + isp1362_hcd->irq_stat[ISP1362_INT_ISTL1]++; + handled = 1; + svc_mask &= ~HCuPINT_ISTL1; + isp1362_clr_mask16(isp1362_hcd, HCBUFSTAT, HCBUFSTAT_ISTL1_FULL); + DBG(1, "%s: ISTL1\n", __func__); + WARN_ON(!(int)isp1362_hcd->istl_flip); + WARN_ON(isp1362_read_reg16(isp1362_hcd, HCBUFSTAT) & HCBUFSTAT_ISTL1_ACTIVE); + WARN_ON(!isp1362_read_reg16(isp1362_hcd, HCBUFSTAT) & HCBUFSTAT_ISTL1_DONE); + isp1362_hcd->irqenb &= ~HCuPINT_ISTL1; + } + + if (irqstat & (HCuPINT_ISTL0 | HCuPINT_ISTL1)) { + WARN_ON((irqstat & (HCuPINT_ISTL0 | HCuPINT_ISTL1)) == + (HCuPINT_ISTL0 | HCuPINT_ISTL1)); + finish_iso_transfers(isp1362_hcd, + &isp1362_hcd->istl_queue[isp1362_hcd->istl_flip]); + start_iso_transfers(isp1362_hcd); + isp1362_hcd->istl_flip = 1 - isp1362_hcd->istl_flip; + } + + if (irqstat & HCuPINT_INTL) { + u32 done_map = isp1362_read_reg32(isp1362_hcd, HCINTLDONE); + u32 skip_map = isp1362_read_reg32(isp1362_hcd, HCINTLSKIP); + isp1362_hcd->irq_stat[ISP1362_INT_INTL]++; + + DBG(2, "%s: INTL\n", __func__); + + svc_mask &= ~HCuPINT_INTL; + + isp1362_write_reg32(isp1362_hcd, HCINTLSKIP, skip_map | done_map); + if (~(done_map | skip_map) == 0) + /* All PTDs are finished, disable INTL processing entirely */ + isp1362_clr_mask16(isp1362_hcd, HCBUFSTAT, HCBUFSTAT_INTL_ACTIVE); + + handled = 1; + WARN_ON(!done_map); + if (done_map) { + DBG(3, "%s: INTL done_map %08x\n", __func__, done_map); + finish_transfers(isp1362_hcd, done_map, &isp1362_hcd->intl_queue); + start_intl_transfers(isp1362_hcd); + } + } + + if (irqstat & HCuPINT_ATL) { + u32 done_map = isp1362_read_reg32(isp1362_hcd, HCATLDONE); + u32 skip_map = isp1362_read_reg32(isp1362_hcd, HCATLSKIP); + isp1362_hcd->irq_stat[ISP1362_INT_ATL]++; + + DBG(2, "%s: ATL\n", __func__); + + svc_mask &= ~HCuPINT_ATL; + + isp1362_write_reg32(isp1362_hcd, HCATLSKIP, skip_map | done_map); + if (~(done_map | skip_map) == 0) + isp1362_clr_mask16(isp1362_hcd, HCBUFSTAT, HCBUFSTAT_ATL_ACTIVE); + if (done_map) { + DBG(3, "%s: ATL done_map %08x\n", __func__, done_map); + finish_transfers(isp1362_hcd, done_map, &isp1362_hcd->atl_queue); + start_atl_transfers(isp1362_hcd); + } + handled = 1; + } + + if (irqstat & HCuPINT_OPR) { + u32 intstat = isp1362_read_reg32(isp1362_hcd, HCINTSTAT); + isp1362_hcd->irq_stat[ISP1362_INT_OPR]++; + + svc_mask &= ~HCuPINT_OPR; + DBG(2, "%s: OPR %08x:%08x\n", __func__, intstat, isp1362_hcd->intenb); + intstat &= isp1362_hcd->intenb; + if (intstat & OHCI_INTR_UE) { + pr_err("Unrecoverable error\n"); + /* FIXME: do here reset or cleanup or whatever */ + } + if (intstat & OHCI_INTR_RHSC) { + isp1362_hcd->rhstatus = isp1362_read_reg32(isp1362_hcd, HCRHSTATUS); + isp1362_hcd->rhport[0] = isp1362_read_reg32(isp1362_hcd, HCRHPORT1); + isp1362_hcd->rhport[1] = isp1362_read_reg32(isp1362_hcd, HCRHPORT2); + } + if (intstat & OHCI_INTR_RD) { + pr_info("%s: RESUME DETECTED\n", __func__); + isp1362_show_reg(isp1362_hcd, HCCONTROL); + usb_hcd_resume_root_hub(hcd); + } + isp1362_write_reg32(isp1362_hcd, HCINTSTAT, intstat); + irqstat &= ~HCuPINT_OPR; + handled = 1; + } + + if (irqstat & HCuPINT_SUSP) { + isp1362_hcd->irq_stat[ISP1362_INT_SUSP]++; + handled = 1; + svc_mask &= ~HCuPINT_SUSP; + + pr_info("%s: SUSPEND IRQ\n", __func__); + } + + if (irqstat & HCuPINT_CLKRDY) { + isp1362_hcd->irq_stat[ISP1362_INT_CLKRDY]++; + handled = 1; + isp1362_hcd->irqenb &= ~HCuPINT_CLKRDY; + svc_mask &= ~HCuPINT_CLKRDY; + pr_info("%s: CLKRDY IRQ\n", __func__); + } + + if (svc_mask) + pr_err("%s: Unserviced interrupt(s) %04x\n", __func__, svc_mask); + + isp1362_write_reg16(isp1362_hcd, HCuPINTENB, isp1362_hcd->irqenb); + isp1362_hcd->irq_active--; + spin_unlock(&isp1362_hcd->lock); + + return IRQ_RETVAL(handled); +} + +/*-------------------------------------------------------------------------*/ + +#define MAX_PERIODIC_LOAD 900 /* out of 1000 usec */ +static int balance(struct isp1362_hcd *isp1362_hcd, u16 interval, u16 load) +{ + int i, branch = -ENOSPC; + + /* search for the least loaded schedule branch of that interval + * which has enough bandwidth left unreserved. + */ + for (i = 0; i < interval; i++) { + if (branch < 0 || isp1362_hcd->load[branch] > isp1362_hcd->load[i]) { + int j; + + for (j = i; j < PERIODIC_SIZE; j += interval) { + if ((isp1362_hcd->load[j] + load) > MAX_PERIODIC_LOAD) { + pr_err("%s: new load %d load[%02x] %d max %d\n", __func__, + load, j, isp1362_hcd->load[j], MAX_PERIODIC_LOAD); + break; + } + } + if (j < PERIODIC_SIZE) + continue; + branch = i; + } + } + return branch; +} + +/* NB! ALL the code above this point runs with isp1362_hcd->lock + held, irqs off +*/ + +/*-------------------------------------------------------------------------*/ + +static int isp1362_urb_enqueue(struct usb_hcd *hcd, + struct urb *urb, + gfp_t mem_flags) +{ + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + struct usb_device *udev = urb->dev; + unsigned int pipe = urb->pipe; + int is_out = !usb_pipein(pipe); + int type = usb_pipetype(pipe); + int epnum = usb_pipeendpoint(pipe); + struct usb_host_endpoint *hep = urb->ep; + struct isp1362_ep *ep = NULL; + unsigned long flags; + int retval = 0; + + DBG(3, "%s: urb %p\n", __func__, urb); + + if (type == PIPE_ISOCHRONOUS) { + pr_err("Isochronous transfers not supported\n"); + return -ENOSPC; + } + + URB_DBG("%s: FA %d ep%d%s %s: len %d %s%s\n", __func__, + usb_pipedevice(pipe), epnum, + is_out ? "out" : "in", + usb_pipecontrol(pipe) ? "ctrl" : + usb_pipeint(pipe) ? "int" : + usb_pipebulk(pipe) ? "bulk" : + "iso", + urb->transfer_buffer_length, + (urb->transfer_flags & URB_ZERO_PACKET) ? "ZERO_PACKET " : "", + !(urb->transfer_flags & URB_SHORT_NOT_OK) ? + "short_ok" : ""); + + /* avoid all allocations within spinlocks: request or endpoint */ + if (!hep->hcpriv) { + ep = kcalloc(1, sizeof *ep, mem_flags); + if (!ep) + return -ENOMEM; + } + spin_lock_irqsave(&isp1362_hcd->lock, flags); + + /* don't submit to a dead or disabled port */ + if (!((isp1362_hcd->rhport[0] | isp1362_hcd->rhport[1]) & + (1 << USB_PORT_FEAT_ENABLE)) || + !HC_IS_RUNNING(hcd->state)) { + kfree(ep); + retval = -ENODEV; + goto fail_not_linked; + } + + retval = usb_hcd_link_urb_to_ep(hcd, urb); + if (retval) { + kfree(ep); + goto fail_not_linked; + } + + if (hep->hcpriv) { + ep = hep->hcpriv; + } else { + INIT_LIST_HEAD(&ep->schedule); + INIT_LIST_HEAD(&ep->active); + INIT_LIST_HEAD(&ep->remove_list); + ep->udev = usb_get_dev(udev); + ep->hep = hep; + ep->epnum = epnum; + ep->maxpacket = usb_maxpacket(udev, urb->pipe, is_out); + ep->ptd_offset = -EINVAL; + ep->ptd_index = -EINVAL; + usb_settoggle(udev, epnum, is_out, 0); + + if (type == PIPE_CONTROL) + ep->nextpid = USB_PID_SETUP; + else if (is_out) + ep->nextpid = USB_PID_OUT; + else + ep->nextpid = USB_PID_IN; + + switch (type) { + case PIPE_ISOCHRONOUS: + case PIPE_INTERRUPT: + if (urb->interval > PERIODIC_SIZE) + urb->interval = PERIODIC_SIZE; + ep->interval = urb->interval; + ep->branch = PERIODIC_SIZE; + ep->load = usb_calc_bus_time(udev->speed, !is_out, + (type == PIPE_ISOCHRONOUS), + usb_maxpacket(udev, pipe, is_out)) / 1000; + break; + } + hep->hcpriv = ep; + } + ep->num_req = isp1362_hcd->req_serial++; + + /* maybe put endpoint into schedule */ + switch (type) { + case PIPE_CONTROL: + case PIPE_BULK: + if (list_empty(&ep->schedule)) { + DBG(1, "%s: Adding ep %p req %d to async schedule\n", + __func__, ep, ep->num_req); + list_add_tail(&ep->schedule, &isp1362_hcd->async); + } + break; + case PIPE_ISOCHRONOUS: + case PIPE_INTERRUPT: + urb->interval = ep->interval; + + /* urb submitted for already existing EP */ + if (ep->branch < PERIODIC_SIZE) + break; + + retval = balance(isp1362_hcd, ep->interval, ep->load); + if (retval < 0) { + pr_err("%s: balance returned %d\n", __func__, retval); + goto fail; + } + ep->branch = retval; + retval = 0; + isp1362_hcd->fmindex = isp1362_read_reg32(isp1362_hcd, HCFMNUM); + DBG(1, "%s: Current frame %04x branch %02x start_frame %04x(%04x)\n", + __func__, isp1362_hcd->fmindex, ep->branch, + ((isp1362_hcd->fmindex + PERIODIC_SIZE - 1) & + ~(PERIODIC_SIZE - 1)) + ep->branch, + (isp1362_hcd->fmindex & (PERIODIC_SIZE - 1)) + ep->branch); + + if (list_empty(&ep->schedule)) { + if (type == PIPE_ISOCHRONOUS) { + u16 frame = isp1362_hcd->fmindex; + + frame += max_t(u16, 8, ep->interval); + frame &= ~(ep->interval - 1); + frame |= ep->branch; + if (frame_before(frame, isp1362_hcd->fmindex)) + frame += ep->interval; + urb->start_frame = frame; + + DBG(1, "%s: Adding ep %p to isoc schedule\n", __func__, ep); + list_add_tail(&ep->schedule, &isp1362_hcd->isoc); + } else { + DBG(1, "%s: Adding ep %p to periodic schedule\n", __func__, ep); + list_add_tail(&ep->schedule, &isp1362_hcd->periodic); + } + } else + DBG(1, "%s: ep %p already scheduled\n", __func__, ep); + + DBG(2, "%s: load %d bandwidth %d -> %d\n", __func__, + ep->load / ep->interval, isp1362_hcd->load[ep->branch], + isp1362_hcd->load[ep->branch] + ep->load); + isp1362_hcd->load[ep->branch] += ep->load; + } + + urb->hcpriv = hep; + ALIGNSTAT(isp1362_hcd, urb->transfer_buffer); + + switch (type) { + case PIPE_CONTROL: + case PIPE_BULK: + start_atl_transfers(isp1362_hcd); + break; + case PIPE_INTERRUPT: + start_intl_transfers(isp1362_hcd); + break; + case PIPE_ISOCHRONOUS: + start_iso_transfers(isp1362_hcd); + break; + default: + BUG(); + } + fail: + if (retval) + usb_hcd_unlink_urb_from_ep(hcd, urb); + + + fail_not_linked: + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + if (retval) + DBG(0, "%s: urb %p failed with %d\n", __func__, urb, retval); + return retval; +} + +static int isp1362_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) +{ + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + struct usb_host_endpoint *hep; + unsigned long flags; + struct isp1362_ep *ep; + int retval = 0; + + DBG(3, "%s: urb %p\n", __func__, urb); + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + retval = usb_hcd_check_unlink_urb(hcd, urb, status); + if (retval) + goto done; + + hep = urb->hcpriv; + + if (!hep) { + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + return -EIDRM; + } + + ep = hep->hcpriv; + if (ep) { + /* In front of queue? */ + if (ep->hep->urb_list.next == &urb->urb_list) { + if (!list_empty(&ep->active)) { + DBG(1, "%s: urb %p ep %p req %d active PTD[%d] $%04x\n", __func__, + urb, ep, ep->num_req, ep->ptd_index, ep->ptd_offset); + /* disable processing and queue PTD for removal */ + remove_ptd(isp1362_hcd, ep); + urb = NULL; + } + } + if (urb) { + DBG(1, "%s: Finishing ep %p req %d\n", __func__, ep, + ep->num_req); + finish_request(isp1362_hcd, ep, urb, status); + } else + DBG(1, "%s: urb %p active; wait4irq\n", __func__, urb); + } else { + pr_warning("%s: No EP in URB %p\n", __func__, urb); + retval = -EINVAL; + } +done: + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + DBG(3, "%s: exit\n", __func__); + + return retval; +} + +static void isp1362_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep) +{ + struct isp1362_ep *ep = hep->hcpriv; + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + unsigned long flags; + + DBG(1, "%s: ep %p\n", __func__, ep); + if (!ep) + return; + spin_lock_irqsave(&isp1362_hcd->lock, flags); + if (!list_empty(&hep->urb_list)) { + if (!list_empty(&ep->active) && list_empty(&ep->remove_list)) { + DBG(1, "%s: Removing ep %p req %d PTD[%d] $%04x\n", __func__, + ep, ep->num_req, ep->ptd_index, ep->ptd_offset); + remove_ptd(isp1362_hcd, ep); + pr_info("%s: Waiting for Interrupt to clean up\n", __func__); + } + } + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + /* Wait for interrupt to clear out active list */ + while (!list_empty(&ep->active)) + msleep(1); + + DBG(1, "%s: Freeing EP %p\n", __func__, ep); + + usb_put_dev(ep->udev); + kfree(ep); + hep->hcpriv = NULL; +} + +static int isp1362_get_frame(struct usb_hcd *hcd) +{ + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + u32 fmnum; + unsigned long flags; + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + fmnum = isp1362_read_reg32(isp1362_hcd, HCFMNUM); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + return (int)fmnum; +} + +/*-------------------------------------------------------------------------*/ + +/* Adapted from ohci-hub.c */ +static int isp1362_hub_status_data(struct usb_hcd *hcd, char *buf) +{ + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + int ports, i, changed = 0; + unsigned long flags; + + if (!HC_IS_RUNNING(hcd->state)) + return -ESHUTDOWN; + + /* Report no status change now, if we are scheduled to be + called later */ + if (timer_pending(&hcd->rh_timer)) + return 0; + + ports = isp1362_hcd->rhdesca & RH_A_NDP; + BUG_ON(ports > 2); + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + /* init status */ + if (isp1362_hcd->rhstatus & (RH_HS_LPSC | RH_HS_OCIC)) + buf[0] = changed = 1; + else + buf[0] = 0; + + for (i = 0; i < ports; i++) { + u32 status = isp1362_hcd->rhport[i]; + + if (status & (RH_PS_CSC | RH_PS_PESC | RH_PS_PSSC | + RH_PS_OCIC | RH_PS_PRSC)) { + changed = 1; + buf[0] |= 1 << (i + 1); + continue; + } + + if (!(status & RH_PS_CCS)) + continue; + } + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + return changed; +} + +static void isp1362_hub_descriptor(struct isp1362_hcd *isp1362_hcd, + struct usb_hub_descriptor *desc) +{ + u32 reg = isp1362_hcd->rhdesca; + + DBG(3, "%s: enter\n", __func__); + + desc->bDescriptorType = 0x29; + desc->bDescLength = 9; + desc->bHubContrCurrent = 0; + desc->bNbrPorts = reg & 0x3; + /* Power switching, device type, overcurrent. */ + desc->wHubCharacteristics = cpu_to_le16((reg >> 8) & 0x1f); + DBG(0, "%s: hubcharacteristics = %02x\n", __func__, cpu_to_le16((reg >> 8) & 0x1f)); + desc->bPwrOn2PwrGood = (reg >> 24) & 0xff; + /* two bitmaps: ports removable, and legacy PortPwrCtrlMask */ + desc->bitmap[0] = desc->bNbrPorts == 1 ? 1 << 1 : 3 << 1; + desc->bitmap[1] = ~0; + + DBG(3, "%s: exit\n", __func__); +} + +/* Adapted from ohci-hub.c */ +static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, + u16 wIndex, char *buf, u16 wLength) +{ + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + int retval = 0; + unsigned long flags; + unsigned long t1; + int ports = isp1362_hcd->rhdesca & RH_A_NDP; + u32 tmp = 0; + + switch (typeReq) { + case ClearHubFeature: + DBG(0, "ClearHubFeature: "); + switch (wValue) { + case C_HUB_OVER_CURRENT: + _DBG(0, "C_HUB_OVER_CURRENT\n"); + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_reg32(isp1362_hcd, HCRHSTATUS, RH_HS_OCIC); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + case C_HUB_LOCAL_POWER: + _DBG(0, "C_HUB_LOCAL_POWER\n"); + break; + default: + goto error; + } + break; + case SetHubFeature: + DBG(0, "SetHubFeature: "); + switch (wValue) { + case C_HUB_OVER_CURRENT: + case C_HUB_LOCAL_POWER: + _DBG(0, "C_HUB_OVER_CURRENT or C_HUB_LOCAL_POWER\n"); + break; + default: + goto error; + } + break; + case GetHubDescriptor: + DBG(0, "GetHubDescriptor\n"); + isp1362_hub_descriptor(isp1362_hcd, (struct usb_hub_descriptor *)buf); + break; + case GetHubStatus: + DBG(0, "GetHubStatus\n"); + put_unaligned(cpu_to_le32(0), (__le32 *) buf); + break; + case GetPortStatus: +#ifndef VERBOSE + DBG(0, "GetPortStatus\n"); +#endif + if (!wIndex || wIndex > ports) + goto error; + tmp = isp1362_hcd->rhport[--wIndex]; + put_unaligned(cpu_to_le32(tmp), (__le32 *) buf); + break; + case ClearPortFeature: + DBG(0, "ClearPortFeature: "); + if (!wIndex || wIndex > ports) + goto error; + wIndex--; + + switch (wValue) { + case USB_PORT_FEAT_ENABLE: + _DBG(0, "USB_PORT_FEAT_ENABLE\n"); + tmp = RH_PS_CCS; + break; + case USB_PORT_FEAT_C_ENABLE: + _DBG(0, "USB_PORT_FEAT_C_ENABLE\n"); + tmp = RH_PS_PESC; + break; + case USB_PORT_FEAT_SUSPEND: + _DBG(0, "USB_PORT_FEAT_SUSPEND\n"); + tmp = RH_PS_POCI; + break; + case USB_PORT_FEAT_C_SUSPEND: + _DBG(0, "USB_PORT_FEAT_C_SUSPEND\n"); + tmp = RH_PS_PSSC; + break; + case USB_PORT_FEAT_POWER: + _DBG(0, "USB_PORT_FEAT_POWER\n"); + tmp = RH_PS_LSDA; + + break; + case USB_PORT_FEAT_C_CONNECTION: + _DBG(0, "USB_PORT_FEAT_C_CONNECTION\n"); + tmp = RH_PS_CSC; + break; + case USB_PORT_FEAT_C_OVER_CURRENT: + _DBG(0, "USB_PORT_FEAT_C_OVER_CURRENT\n"); + tmp = RH_PS_OCIC; + break; + case USB_PORT_FEAT_C_RESET: + _DBG(0, "USB_PORT_FEAT_C_RESET\n"); + tmp = RH_PS_PRSC; + break; + default: + goto error; + } + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_reg32(isp1362_hcd, HCRHPORT1 + wIndex, tmp); + isp1362_hcd->rhport[wIndex] = + isp1362_read_reg32(isp1362_hcd, HCRHPORT1 + wIndex); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + break; + case SetPortFeature: + DBG(0, "SetPortFeature: "); + if (!wIndex || wIndex > ports) + goto error; + wIndex--; + switch (wValue) { + case USB_PORT_FEAT_SUSPEND: + _DBG(0, "USB_PORT_FEAT_SUSPEND\n"); +#ifdef CONFIG_USB_OTG + if (ohci->hcd.self.otg_port == (wIndex + 1) && + ohci->hcd.self.b_hnp_enable) { + start_hnp(ohci); + break; + } +#endif + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_reg32(isp1362_hcd, HCRHPORT1 + wIndex, RH_PS_PSS); + isp1362_hcd->rhport[wIndex] = + isp1362_read_reg32(isp1362_hcd, HCRHPORT1 + wIndex); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + break; + case USB_PORT_FEAT_POWER: + _DBG(0, "USB_PORT_FEAT_POWER\n"); + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_reg32(isp1362_hcd, HCRHPORT1 + wIndex, RH_PS_PPS); + isp1362_hcd->rhport[wIndex] = + isp1362_read_reg32(isp1362_hcd, HCRHPORT1 + wIndex); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + break; + case USB_PORT_FEAT_RESET: + _DBG(0, "USB_PORT_FEAT_RESET\n"); + spin_lock_irqsave(&isp1362_hcd->lock, flags); + + t1 = jiffies + msecs_to_jiffies(USB_RESET_WIDTH); + while (time_before(jiffies, t1)) { + /* spin until any current reset finishes */ + for (;;) { + tmp = isp1362_read_reg32(isp1362_hcd, HCRHPORT1 + wIndex); + if (!(tmp & RH_PS_PRS)) + break; + udelay(500); + } + if (!(tmp & RH_PS_CCS)) + break; + /* Reset lasts 10ms (claims datasheet) */ + isp1362_write_reg32(isp1362_hcd, HCRHPORT1 + wIndex, (RH_PS_PRS)); + + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + msleep(10); + spin_lock_irqsave(&isp1362_hcd->lock, flags); + } + + isp1362_hcd->rhport[wIndex] = isp1362_read_reg32(isp1362_hcd, + HCRHPORT1 + wIndex); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + break; + default: + goto error; + } + break; + + default: + error: + /* "protocol stall" on error */ + _DBG(0, "PROTOCOL STALL\n"); + retval = -EPIPE; + } + + return retval; +} + +#ifdef CONFIG_PM +static int isp1362_bus_suspend(struct usb_hcd *hcd) +{ + int status = 0; + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + unsigned long flags; + + if (time_before(jiffies, isp1362_hcd->next_statechange)) + msleep(5); + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + + isp1362_hcd->hc_control = isp1362_read_reg32(isp1362_hcd, HCCONTROL); + switch (isp1362_hcd->hc_control & OHCI_CTRL_HCFS) { + case OHCI_USB_RESUME: + DBG(0, "%s: resume/suspend?\n", __func__); + isp1362_hcd->hc_control &= ~OHCI_CTRL_HCFS; + isp1362_hcd->hc_control |= OHCI_USB_RESET; + isp1362_write_reg32(isp1362_hcd, HCCONTROL, isp1362_hcd->hc_control); + /* FALL THROUGH */ + case OHCI_USB_RESET: + status = -EBUSY; + pr_warning("%s: needs reinit!\n", __func__); + goto done; + case OHCI_USB_SUSPEND: + pr_warning("%s: already suspended?\n", __func__); + goto done; + } + DBG(0, "%s: suspend root hub\n", __func__); + + /* First stop any processing */ + hcd->state = HC_STATE_QUIESCING; + if (!list_empty(&isp1362_hcd->atl_queue.active) || + !list_empty(&isp1362_hcd->intl_queue.active) || + !list_empty(&isp1362_hcd->istl_queue[0] .active) || + !list_empty(&isp1362_hcd->istl_queue[1] .active)) { + int limit; + + isp1362_write_reg32(isp1362_hcd, HCATLSKIP, ~0); + isp1362_write_reg32(isp1362_hcd, HCINTLSKIP, ~0); + isp1362_write_reg16(isp1362_hcd, HCBUFSTAT, 0); + isp1362_write_reg16(isp1362_hcd, HCuPINTENB, 0); + isp1362_write_reg32(isp1362_hcd, HCINTSTAT, OHCI_INTR_SF); + + DBG(0, "%s: stopping schedules ...\n", __func__); + limit = 2000; + while (limit > 0) { + udelay(250); + limit -= 250; + if (isp1362_read_reg32(isp1362_hcd, HCINTSTAT) & OHCI_INTR_SF) + break; + } + mdelay(7); + if (isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_ATL) { + u32 done_map = isp1362_read_reg32(isp1362_hcd, HCATLDONE); + finish_transfers(isp1362_hcd, done_map, &isp1362_hcd->atl_queue); + } + if (isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_INTL) { + u32 done_map = isp1362_read_reg32(isp1362_hcd, HCINTLDONE); + finish_transfers(isp1362_hcd, done_map, &isp1362_hcd->intl_queue); + } + if (isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_ISTL0) + finish_iso_transfers(isp1362_hcd, &isp1362_hcd->istl_queue[0]); + if (isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_ISTL1) + finish_iso_transfers(isp1362_hcd, &isp1362_hcd->istl_queue[1]); + } + DBG(0, "%s: HCINTSTAT: %08x\n", __func__, + isp1362_read_reg32(isp1362_hcd, HCINTSTAT)); + isp1362_write_reg32(isp1362_hcd, HCINTSTAT, + isp1362_read_reg32(isp1362_hcd, HCINTSTAT)); + + /* Suspend hub */ + isp1362_hcd->hc_control = OHCI_USB_SUSPEND; + isp1362_show_reg(isp1362_hcd, HCCONTROL); + isp1362_write_reg32(isp1362_hcd, HCCONTROL, isp1362_hcd->hc_control); + isp1362_show_reg(isp1362_hcd, HCCONTROL); + +#if 1 + isp1362_hcd->hc_control = isp1362_read_reg32(isp1362_hcd, HCCONTROL); + if ((isp1362_hcd->hc_control & OHCI_CTRL_HCFS) != OHCI_USB_SUSPEND) { + pr_err("%s: controller won't suspend %08x\n", __func__, + isp1362_hcd->hc_control); + status = -EBUSY; + } else +#endif + { + /* no resumes until devices finish suspending */ + isp1362_hcd->next_statechange = jiffies + msecs_to_jiffies(5); + } +done: + if (status == 0) { + hcd->state = HC_STATE_SUSPENDED; + DBG(0, "%s: HCD suspended: %08x\n", __func__, + isp1362_read_reg32(isp1362_hcd, HCCONTROL)); + } + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + return status; +} + +static int isp1362_bus_resume(struct usb_hcd *hcd) +{ + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + u32 port; + unsigned long flags; + int status = -EINPROGRESS; + + if (time_before(jiffies, isp1362_hcd->next_statechange)) + msleep(5); + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_hcd->hc_control = isp1362_read_reg32(isp1362_hcd, HCCONTROL); + pr_info("%s: HCCONTROL: %08x\n", __func__, isp1362_hcd->hc_control); + if (hcd->state == HC_STATE_RESUMING) { + pr_warning("%s: duplicate resume\n", __func__); + status = 0; + } else + switch (isp1362_hcd->hc_control & OHCI_CTRL_HCFS) { + case OHCI_USB_SUSPEND: + DBG(0, "%s: resume root hub\n", __func__); + isp1362_hcd->hc_control &= ~OHCI_CTRL_HCFS; + isp1362_hcd->hc_control |= OHCI_USB_RESUME; + isp1362_write_reg32(isp1362_hcd, HCCONTROL, isp1362_hcd->hc_control); + break; + case OHCI_USB_RESUME: + /* HCFS changes sometime after INTR_RD */ + DBG(0, "%s: remote wakeup\n", __func__); + break; + case OHCI_USB_OPER: + DBG(0, "%s: odd resume\n", __func__); + status = 0; + hcd->self.root_hub->dev.power.power_state = PMSG_ON; + break; + default: /* RESET, we lost power */ + DBG(0, "%s: root hub hardware reset\n", __func__); + status = -EBUSY; + } + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + if (status == -EBUSY) { + DBG(0, "%s: Restarting HC\n", __func__); + isp1362_hc_stop(hcd); + return isp1362_hc_start(hcd); + } + if (status != -EINPROGRESS) + return status; + spin_lock_irqsave(&isp1362_hcd->lock, flags); + port = isp1362_read_reg32(isp1362_hcd, HCRHDESCA) & RH_A_NDP; + while (port--) { + u32 stat = isp1362_read_reg32(isp1362_hcd, HCRHPORT1 + port); + + /* force global, not selective, resume */ + if (!(stat & RH_PS_PSS)) { + DBG(0, "%s: Not Resuming RH port %d\n", __func__, port); + continue; + } + DBG(0, "%s: Resuming RH port %d\n", __func__, port); + isp1362_write_reg32(isp1362_hcd, HCRHPORT1 + port, RH_PS_POCI); + } + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + /* Some controllers (lucent) need extra-long delays */ + hcd->state = HC_STATE_RESUMING; + mdelay(20 /* usb 11.5.1.10 */ + 15); + + isp1362_hcd->hc_control = OHCI_USB_OPER; + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_show_reg(isp1362_hcd, HCCONTROL); + isp1362_write_reg32(isp1362_hcd, HCCONTROL, isp1362_hcd->hc_control); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + /* TRSMRCY */ + msleep(10); + + /* keep it alive for ~5x suspend + resume costs */ + isp1362_hcd->next_statechange = jiffies + msecs_to_jiffies(250); + + hcd->self.root_hub->dev.power.power_state = PMSG_ON; + hcd->state = HC_STATE_RUNNING; + return 0; +} +#else +#define isp1362_bus_suspend NULL +#define isp1362_bus_resume NULL +#endif + +/*-------------------------------------------------------------------------*/ + +#ifdef STUB_DEBUG_FILE + +static inline void create_debug_file(struct isp1362_hcd *isp1362_hcd) +{ +} +static inline void remove_debug_file(struct isp1362_hcd *isp1362_hcd) +{ +} + +#else + +#include <linux/proc_fs.h> +#include <linux/seq_file.h> + +static void dump_irq(struct seq_file *s, char *label, u16 mask) +{ + seq_printf(s, "%-15s %04x%s%s%s%s%s%s\n", label, mask, + mask & HCuPINT_CLKRDY ? " clkrdy" : "", + mask & HCuPINT_SUSP ? " susp" : "", + mask & HCuPINT_OPR ? " opr" : "", + mask & HCuPINT_EOT ? " eot" : "", + mask & HCuPINT_ATL ? " atl" : "", + mask & HCuPINT_SOF ? " sof" : ""); +} + +static void dump_int(struct seq_file *s, char *label, u32 mask) +{ + seq_printf(s, "%-15s %08x%s%s%s%s%s%s%s\n", label, mask, + mask & OHCI_INTR_MIE ? " MIE" : "", + mask & OHCI_INTR_RHSC ? " rhsc" : "", + mask & OHCI_INTR_FNO ? " fno" : "", + mask & OHCI_INTR_UE ? " ue" : "", + mask & OHCI_INTR_RD ? " rd" : "", + mask & OHCI_INTR_SF ? " sof" : "", + mask & OHCI_INTR_SO ? " so" : ""); +} + +static void dump_ctrl(struct seq_file *s, char *label, u32 mask) +{ + seq_printf(s, "%-15s %08x%s%s%s\n", label, mask, + mask & OHCI_CTRL_RWC ? " rwc" : "", + mask & OHCI_CTRL_RWE ? " rwe" : "", + ({ + char *hcfs; + switch (mask & OHCI_CTRL_HCFS) { + case OHCI_USB_OPER: + hcfs = " oper"; + break; + case OHCI_USB_RESET: + hcfs = " reset"; + break; + case OHCI_USB_RESUME: + hcfs = " resume"; + break; + case OHCI_USB_SUSPEND: + hcfs = " suspend"; + break; + default: + hcfs = " ?"; + } + hcfs; + })); +} + +static void dump_regs(struct seq_file *s, struct isp1362_hcd *isp1362_hcd) +{ + seq_printf(s, "HCREVISION [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCREVISION), + isp1362_read_reg32(isp1362_hcd, HCREVISION)); + seq_printf(s, "HCCONTROL [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCCONTROL), + isp1362_read_reg32(isp1362_hcd, HCCONTROL)); + seq_printf(s, "HCCMDSTAT [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCCMDSTAT), + isp1362_read_reg32(isp1362_hcd, HCCMDSTAT)); + seq_printf(s, "HCINTSTAT [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCINTSTAT), + isp1362_read_reg32(isp1362_hcd, HCINTSTAT)); + seq_printf(s, "HCINTENB [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCINTENB), + isp1362_read_reg32(isp1362_hcd, HCINTENB)); + seq_printf(s, "HCFMINTVL [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCFMINTVL), + isp1362_read_reg32(isp1362_hcd, HCFMINTVL)); + seq_printf(s, "HCFMREM [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCFMREM), + isp1362_read_reg32(isp1362_hcd, HCFMREM)); + seq_printf(s, "HCFMNUM [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCFMNUM), + isp1362_read_reg32(isp1362_hcd, HCFMNUM)); + seq_printf(s, "HCLSTHRESH [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCLSTHRESH), + isp1362_read_reg32(isp1362_hcd, HCLSTHRESH)); + seq_printf(s, "HCRHDESCA [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCRHDESCA), + isp1362_read_reg32(isp1362_hcd, HCRHDESCA)); + seq_printf(s, "HCRHDESCB [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCRHDESCB), + isp1362_read_reg32(isp1362_hcd, HCRHDESCB)); + seq_printf(s, "HCRHSTATUS [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCRHSTATUS), + isp1362_read_reg32(isp1362_hcd, HCRHSTATUS)); + seq_printf(s, "HCRHPORT1 [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCRHPORT1), + isp1362_read_reg32(isp1362_hcd, HCRHPORT1)); + seq_printf(s, "HCRHPORT2 [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCRHPORT2), + isp1362_read_reg32(isp1362_hcd, HCRHPORT2)); + seq_printf(s, "\n"); + seq_printf(s, "HCHWCFG [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCHWCFG), + isp1362_read_reg16(isp1362_hcd, HCHWCFG)); + seq_printf(s, "HCDMACFG [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCDMACFG), + isp1362_read_reg16(isp1362_hcd, HCDMACFG)); + seq_printf(s, "HCXFERCTR [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCXFERCTR), + isp1362_read_reg16(isp1362_hcd, HCXFERCTR)); + seq_printf(s, "HCuPINT [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCuPINT), + isp1362_read_reg16(isp1362_hcd, HCuPINT)); + seq_printf(s, "HCuPINTENB [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCuPINTENB), + isp1362_read_reg16(isp1362_hcd, HCuPINTENB)); + seq_printf(s, "HCCHIPID [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCCHIPID), + isp1362_read_reg16(isp1362_hcd, HCCHIPID)); + seq_printf(s, "HCSCRATCH [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCSCRATCH), + isp1362_read_reg16(isp1362_hcd, HCSCRATCH)); + seq_printf(s, "HCBUFSTAT [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCBUFSTAT), + isp1362_read_reg16(isp1362_hcd, HCBUFSTAT)); + seq_printf(s, "HCDIRADDR [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCDIRADDR), + isp1362_read_reg32(isp1362_hcd, HCDIRADDR)); +#if 0 + seq_printf(s, "HCDIRDATA [%02x] %04x\n", ISP1362_REG_NO(HCDIRDATA), + isp1362_read_reg16(isp1362_hcd, HCDIRDATA)); +#endif + seq_printf(s, "HCISTLBUFSZ[%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCISTLBUFSZ), + isp1362_read_reg16(isp1362_hcd, HCISTLBUFSZ)); + seq_printf(s, "HCISTLRATE [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCISTLRATE), + isp1362_read_reg16(isp1362_hcd, HCISTLRATE)); + seq_printf(s, "\n"); + seq_printf(s, "HCINTLBUFSZ[%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCINTLBUFSZ), + isp1362_read_reg16(isp1362_hcd, HCINTLBUFSZ)); + seq_printf(s, "HCINTLBLKSZ[%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCINTLBLKSZ), + isp1362_read_reg16(isp1362_hcd, HCINTLBLKSZ)); + seq_printf(s, "HCINTLDONE [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCINTLDONE), + isp1362_read_reg32(isp1362_hcd, HCINTLDONE)); + seq_printf(s, "HCINTLSKIP [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCINTLSKIP), + isp1362_read_reg32(isp1362_hcd, HCINTLSKIP)); + seq_printf(s, "HCINTLLAST [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCINTLLAST), + isp1362_read_reg32(isp1362_hcd, HCINTLLAST)); + seq_printf(s, "HCINTLCURR [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCINTLCURR), + isp1362_read_reg16(isp1362_hcd, HCINTLCURR)); + seq_printf(s, "\n"); + seq_printf(s, "HCATLBUFSZ [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCATLBUFSZ), + isp1362_read_reg16(isp1362_hcd, HCATLBUFSZ)); + seq_printf(s, "HCATLBLKSZ [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCATLBLKSZ), + isp1362_read_reg16(isp1362_hcd, HCATLBLKSZ)); +#if 0 + seq_printf(s, "HCATLDONE [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCATLDONE), + isp1362_read_reg32(isp1362_hcd, HCATLDONE)); +#endif + seq_printf(s, "HCATLSKIP [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCATLSKIP), + isp1362_read_reg32(isp1362_hcd, HCATLSKIP)); + seq_printf(s, "HCATLLAST [%02x] %08x\n", ISP1362_REG_NO(ISP1362_REG_HCATLLAST), + isp1362_read_reg32(isp1362_hcd, HCATLLAST)); + seq_printf(s, "HCATLCURR [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCATLCURR), + isp1362_read_reg16(isp1362_hcd, HCATLCURR)); + seq_printf(s, "\n"); + seq_printf(s, "HCATLDTC [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCATLDTC), + isp1362_read_reg16(isp1362_hcd, HCATLDTC)); + seq_printf(s, "HCATLDTCTO [%02x] %04x\n", ISP1362_REG_NO(ISP1362_REG_HCATLDTCTO), + isp1362_read_reg16(isp1362_hcd, HCATLDTCTO)); +} + +static int proc_isp1362_show(struct seq_file *s, void *unused) +{ + struct isp1362_hcd *isp1362_hcd = s->private; + struct isp1362_ep *ep; + int i; + + seq_printf(s, "%s\n%s version %s\n", + isp1362_hcd_to_hcd(isp1362_hcd)->product_desc, hcd_name, DRIVER_VERSION); + + /* collect statistics to help estimate potential win for + * DMA engines that care about alignment (PXA) + */ + seq_printf(s, "alignment: 16b/%ld 8b/%ld 4b/%ld 2b/%ld 1b/%ld\n", + isp1362_hcd->stat16, isp1362_hcd->stat8, isp1362_hcd->stat4, + isp1362_hcd->stat2, isp1362_hcd->stat1); + seq_printf(s, "max # ptds in ATL fifo: %d\n", isp1362_hcd->atl_queue.stat_maxptds); + seq_printf(s, "max # ptds in INTL fifo: %d\n", isp1362_hcd->intl_queue.stat_maxptds); + seq_printf(s, "max # ptds in ISTL fifo: %d\n", + max(isp1362_hcd->istl_queue[0] .stat_maxptds, + isp1362_hcd->istl_queue[1] .stat_maxptds)); + + /* FIXME: don't show the following in suspended state */ + spin_lock_irq(&isp1362_hcd->lock); + + dump_irq(s, "hc_irq_enable", isp1362_read_reg16(isp1362_hcd, HCuPINTENB)); + dump_irq(s, "hc_irq_status", isp1362_read_reg16(isp1362_hcd, HCuPINT)); + dump_int(s, "ohci_int_enable", isp1362_read_reg32(isp1362_hcd, HCINTENB)); + dump_int(s, "ohci_int_status", isp1362_read_reg32(isp1362_hcd, HCINTSTAT)); + dump_ctrl(s, "ohci_control", isp1362_read_reg32(isp1362_hcd, HCCONTROL)); + + for (i = 0; i < NUM_ISP1362_IRQS; i++) + if (isp1362_hcd->irq_stat[i]) + seq_printf(s, "%-15s: %d\n", + ISP1362_INT_NAME(i), isp1362_hcd->irq_stat[i]); + + dump_regs(s, isp1362_hcd); + list_for_each_entry(ep, &isp1362_hcd->async, schedule) { + struct urb *urb; + + seq_printf(s, "%p, ep%d%s, maxpacket %d:\n", ep, ep->epnum, + ({ + char *s; + switch (ep->nextpid) { + case USB_PID_IN: + s = "in"; + break; + case USB_PID_OUT: + s = "out"; + break; + case USB_PID_SETUP: + s = "setup"; + break; + case USB_PID_ACK: + s = "status"; + break; + default: + s = "?"; + break; + }; + s;}), ep->maxpacket) ; + list_for_each_entry(urb, &ep->hep->urb_list, urb_list) { + seq_printf(s, " urb%p, %d/%d\n", urb, + urb->actual_length, + urb->transfer_buffer_length); + } + } + if (!list_empty(&isp1362_hcd->async)) + seq_printf(s, "\n"); + dump_ptd_queue(&isp1362_hcd->atl_queue); + + seq_printf(s, "periodic size= %d\n", PERIODIC_SIZE); + + list_for_each_entry(ep, &isp1362_hcd->periodic, schedule) { + seq_printf(s, "branch:%2d load:%3d PTD[%d] $%04x:\n", ep->branch, + isp1362_hcd->load[ep->branch], ep->ptd_index, ep->ptd_offset); + + seq_printf(s, " %d/%p (%sdev%d ep%d%s max %d)\n", + ep->interval, ep, + (ep->udev->speed == USB_SPEED_FULL) ? "" : "ls ", + ep->udev->devnum, ep->epnum, + (ep->epnum == 0) ? "" : + ((ep->nextpid == USB_PID_IN) ? + "in" : "out"), ep->maxpacket); + } + dump_ptd_queue(&isp1362_hcd->intl_queue); + + seq_printf(s, "ISO:\n"); + + list_for_each_entry(ep, &isp1362_hcd->isoc, schedule) { + seq_printf(s, " %d/%p (%sdev%d ep%d%s max %d)\n", + ep->interval, ep, + (ep->udev->speed == USB_SPEED_FULL) ? "" : "ls ", + ep->udev->devnum, ep->epnum, + (ep->epnum == 0) ? "" : + ((ep->nextpid == USB_PID_IN) ? + "in" : "out"), ep->maxpacket); + } + + spin_unlock_irq(&isp1362_hcd->lock); + seq_printf(s, "\n"); + + return 0; +} + +static int proc_isp1362_open(struct inode *inode, struct file *file) +{ + return single_open(file, proc_isp1362_show, PDE(inode)->data); +} + +static const struct file_operations proc_ops = { + .open = proc_isp1362_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +/* expect just one isp1362_hcd per system */ +static const char proc_filename[] = "driver/isp1362"; + +static void create_debug_file(struct isp1362_hcd *isp1362_hcd) +{ + struct proc_dir_entry *pde; + + pde = create_proc_entry(proc_filename, 0, NULL); + if (pde == NULL) { + pr_warning("%s: Failed to create debug file '%s'\n", __func__, proc_filename); + return; + } + + pde->proc_fops = &proc_ops; + pde->data = isp1362_hcd; + isp1362_hcd->pde = pde; +} + +static void remove_debug_file(struct isp1362_hcd *isp1362_hcd) +{ + if (isp1362_hcd->pde) + remove_proc_entry(proc_filename, 0); +} + +#endif + +/*-------------------------------------------------------------------------*/ + +static void isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd) +{ + int tmp = 20; + unsigned long flags; + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + + isp1362_write_reg16(isp1362_hcd, HCSWRES, HCSWRES_MAGIC); + isp1362_write_reg32(isp1362_hcd, HCCMDSTAT, OHCI_HCR); + while (--tmp) { + mdelay(1); + if (!(isp1362_read_reg32(isp1362_hcd, HCCMDSTAT) & OHCI_HCR)) + break; + } + if (!tmp) + pr_err("Software reset timeout\n"); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); +} + +static int isp1362_mem_config(struct usb_hcd *hcd) +{ + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + unsigned long flags; + u32 total; + u16 istl_size = ISP1362_ISTL_BUFSIZE; + u16 intl_blksize = ISP1362_INTL_BLKSIZE + PTD_HEADER_SIZE; + u16 intl_size = ISP1362_INTL_BUFFERS * intl_blksize; + u16 atl_blksize = ISP1362_ATL_BLKSIZE + PTD_HEADER_SIZE; + u16 atl_buffers = (ISP1362_BUF_SIZE - (istl_size + intl_size)) / atl_blksize; + u16 atl_size; + int i; + + WARN_ON(istl_size & 3); + WARN_ON(atl_blksize & 3); + WARN_ON(intl_blksize & 3); + WARN_ON(atl_blksize < PTD_HEADER_SIZE); + WARN_ON(intl_blksize < PTD_HEADER_SIZE); + + BUG_ON((unsigned)ISP1362_INTL_BUFFERS > 32); + if (atl_buffers > 32) + atl_buffers = 32; + atl_size = atl_buffers * atl_blksize; + total = atl_size + intl_size + istl_size; + dev_info(hcd->self.controller, "ISP1362 Memory usage:\n"); + dev_info(hcd->self.controller, " ISTL: 2 * %4d: %4d @ $%04x:$%04x\n", + istl_size / 2, istl_size, 0, istl_size / 2); + dev_info(hcd->self.controller, " INTL: %4d * (%3u+8): %4d @ $%04x\n", + ISP1362_INTL_BUFFERS, intl_blksize - PTD_HEADER_SIZE, + intl_size, istl_size); + dev_info(hcd->self.controller, " ATL : %4d * (%3u+8): %4d @ $%04x\n", + atl_buffers, atl_blksize - PTD_HEADER_SIZE, + atl_size, istl_size + intl_size); + dev_info(hcd->self.controller, " USED/FREE: %4d %4d\n", total, + ISP1362_BUF_SIZE - total); + + if (total > ISP1362_BUF_SIZE) { + dev_err(hcd->self.controller, "%s: Memory requested: %d, available %d\n", + __func__, total, ISP1362_BUF_SIZE); + return -ENOMEM; + } + + total = istl_size + intl_size + atl_size; + spin_lock_irqsave(&isp1362_hcd->lock, flags); + + for (i = 0; i < 2; i++) { + isp1362_hcd->istl_queue[i].buf_start = i * istl_size / 2, + isp1362_hcd->istl_queue[i].buf_size = istl_size / 2; + isp1362_hcd->istl_queue[i].blk_size = 4; + INIT_LIST_HEAD(&isp1362_hcd->istl_queue[i].active); + snprintf(isp1362_hcd->istl_queue[i].name, + sizeof(isp1362_hcd->istl_queue[i].name), "ISTL%d", i); + DBG(3, "%s: %5s buf $%04x %d\n", __func__, + isp1362_hcd->istl_queue[i].name, + isp1362_hcd->istl_queue[i].buf_start, + isp1362_hcd->istl_queue[i].buf_size); + } + isp1362_write_reg16(isp1362_hcd, HCISTLBUFSZ, istl_size / 2); + + isp1362_hcd->intl_queue.buf_start = istl_size; + isp1362_hcd->intl_queue.buf_size = intl_size; + isp1362_hcd->intl_queue.buf_count = ISP1362_INTL_BUFFERS; + isp1362_hcd->intl_queue.blk_size = intl_blksize; + isp1362_hcd->intl_queue.buf_avail = isp1362_hcd->intl_queue.buf_count; + isp1362_hcd->intl_queue.skip_map = ~0; + INIT_LIST_HEAD(&isp1362_hcd->intl_queue.active); + + isp1362_write_reg16(isp1362_hcd, HCINTLBUFSZ, + isp1362_hcd->intl_queue.buf_size); + isp1362_write_reg16(isp1362_hcd, HCINTLBLKSZ, + isp1362_hcd->intl_queue.blk_size - PTD_HEADER_SIZE); + isp1362_write_reg32(isp1362_hcd, HCINTLSKIP, ~0); + isp1362_write_reg32(isp1362_hcd, HCINTLLAST, + 1 << (ISP1362_INTL_BUFFERS - 1)); + + isp1362_hcd->atl_queue.buf_start = istl_size + intl_size; + isp1362_hcd->atl_queue.buf_size = atl_size; + isp1362_hcd->atl_queue.buf_count = atl_buffers; + isp1362_hcd->atl_queue.blk_size = atl_blksize; + isp1362_hcd->atl_queue.buf_avail = isp1362_hcd->atl_queue.buf_count; + isp1362_hcd->atl_queue.skip_map = ~0; + INIT_LIST_HEAD(&isp1362_hcd->atl_queue.active); + + isp1362_write_reg16(isp1362_hcd, HCATLBUFSZ, + isp1362_hcd->atl_queue.buf_size); + isp1362_write_reg16(isp1362_hcd, HCATLBLKSZ, + isp1362_hcd->atl_queue.blk_size - PTD_HEADER_SIZE); + isp1362_write_reg32(isp1362_hcd, HCATLSKIP, ~0); + isp1362_write_reg32(isp1362_hcd, HCATLLAST, + 1 << (atl_buffers - 1)); + + snprintf(isp1362_hcd->atl_queue.name, + sizeof(isp1362_hcd->atl_queue.name), "ATL"); + snprintf(isp1362_hcd->intl_queue.name, + sizeof(isp1362_hcd->intl_queue.name), "INTL"); + DBG(3, "%s: %5s buf $%04x %2d * %4d = %4d\n", __func__, + isp1362_hcd->intl_queue.name, + isp1362_hcd->intl_queue.buf_start, + ISP1362_INTL_BUFFERS, isp1362_hcd->intl_queue.blk_size, + isp1362_hcd->intl_queue.buf_size); + DBG(3, "%s: %5s buf $%04x %2d * %4d = %4d\n", __func__, + isp1362_hcd->atl_queue.name, + isp1362_hcd->atl_queue.buf_start, + atl_buffers, isp1362_hcd->atl_queue.blk_size, + isp1362_hcd->atl_queue.buf_size); + + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + return 0; +} + +static int isp1362_hc_reset(struct usb_hcd *hcd) +{ + int ret = 0; + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + unsigned long t; + unsigned long timeout = 100; + unsigned long flags; + int clkrdy = 0; + + pr_info("%s:\n", __func__); + + if (isp1362_hcd->board && isp1362_hcd->board->reset) { + isp1362_hcd->board->reset(hcd->self.controller, 1); + msleep(20); + if (isp1362_hcd->board->clock) + isp1362_hcd->board->clock(hcd->self.controller, 1); + isp1362_hcd->board->reset(hcd->self.controller, 0); + } else + isp1362_sw_reset(isp1362_hcd); + + /* chip has been reset. First we need to see a clock */ + t = jiffies + msecs_to_jiffies(timeout); + while (!clkrdy && time_before_eq(jiffies, t)) { + spin_lock_irqsave(&isp1362_hcd->lock, flags); + clkrdy = isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_CLKRDY; + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + if (!clkrdy) + msleep(4); + } + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_CLKRDY); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + if (!clkrdy) { + pr_err("Clock not ready after %lums\n", timeout); + ret = -ENODEV; + } + return ret; +} + +static void isp1362_hc_stop(struct usb_hcd *hcd) +{ + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + unsigned long flags; + u32 tmp; + + pr_info("%s:\n", __func__); + + del_timer_sync(&hcd->rh_timer); + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + + isp1362_write_reg16(isp1362_hcd, HCuPINTENB, 0); + + /* Switch off power for all ports */ + tmp = isp1362_read_reg32(isp1362_hcd, HCRHDESCA); + tmp &= ~(RH_A_NPS | RH_A_PSM); + isp1362_write_reg32(isp1362_hcd, HCRHDESCA, tmp); + isp1362_write_reg32(isp1362_hcd, HCRHSTATUS, RH_HS_LPS); + + /* Reset the chip */ + if (isp1362_hcd->board && isp1362_hcd->board->reset) + isp1362_hcd->board->reset(hcd->self.controller, 1); + else + isp1362_sw_reset(isp1362_hcd); + + if (isp1362_hcd->board && isp1362_hcd->board->clock) + isp1362_hcd->board->clock(hcd->self.controller, 0); + + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); +} + +#ifdef CHIP_BUFFER_TEST +static int isp1362_chip_test(struct isp1362_hcd *isp1362_hcd) +{ + int ret = 0; + u16 *ref; + unsigned long flags; + + ref = kmalloc(2 * ISP1362_BUF_SIZE, GFP_KERNEL); + if (ref) { + int offset; + u16 *tst = &ref[ISP1362_BUF_SIZE / 2]; + + for (offset = 0; offset < ISP1362_BUF_SIZE / 2; offset++) { + ref[offset] = ~offset; + tst[offset] = offset; + } + + for (offset = 0; offset < 4; offset++) { + int j; + + for (j = 0; j < 8; j++) { + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_buffer(isp1362_hcd, (u8 *)ref + offset, 0, j); + isp1362_read_buffer(isp1362_hcd, (u8 *)tst + offset, 0, j); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + if (memcmp(ref, tst, j)) { + ret = -ENODEV; + pr_err("%s: memory check with %d byte offset %d failed\n", + __func__, j, offset); + dump_data((u8 *)ref + offset, j); + dump_data((u8 *)tst + offset, j); + } + } + } + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_buffer(isp1362_hcd, ref, 0, ISP1362_BUF_SIZE); + isp1362_read_buffer(isp1362_hcd, tst, 0, ISP1362_BUF_SIZE); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + if (memcmp(ref, tst, ISP1362_BUF_SIZE)) { + ret = -ENODEV; + pr_err("%s: memory check failed\n", __func__); + dump_data((u8 *)tst, ISP1362_BUF_SIZE / 2); + } + + for (offset = 0; offset < 256; offset++) { + int test_size = 0; + + yield(); + + memset(tst, 0, ISP1362_BUF_SIZE); + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_buffer(isp1362_hcd, tst, 0, ISP1362_BUF_SIZE); + isp1362_read_buffer(isp1362_hcd, tst, 0, ISP1362_BUF_SIZE); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + if (memcmp(tst, tst + (ISP1362_BUF_SIZE / (2 * sizeof(*tst))), + ISP1362_BUF_SIZE / 2)) { + pr_err("%s: Failed to clear buffer\n", __func__); + dump_data((u8 *)tst, ISP1362_BUF_SIZE); + break; + } + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_buffer(isp1362_hcd, ref, offset * 2, PTD_HEADER_SIZE); + isp1362_write_buffer(isp1362_hcd, ref + PTD_HEADER_SIZE / sizeof(*ref), + offset * 2 + PTD_HEADER_SIZE, test_size); + isp1362_read_buffer(isp1362_hcd, tst, offset * 2, + PTD_HEADER_SIZE + test_size); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + if (memcmp(ref, tst, PTD_HEADER_SIZE + test_size)) { + dump_data(((u8 *)ref) + offset, PTD_HEADER_SIZE + test_size); + dump_data((u8 *)tst, PTD_HEADER_SIZE + test_size); + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_read_buffer(isp1362_hcd, tst, offset * 2, + PTD_HEADER_SIZE + test_size); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + if (memcmp(ref, tst, PTD_HEADER_SIZE + test_size)) { + ret = -ENODEV; + pr_err("%s: memory check with offset %02x failed\n", + __func__, offset); + break; + } + pr_warning("%s: memory check with offset %02x ok after second read\n", + __func__, offset); + } + } + kfree(ref); + } + return ret; +} +#endif + +static int isp1362_hc_start(struct usb_hcd *hcd) +{ + int ret; + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + struct isp1362_platform_data *board = isp1362_hcd->board; + u16 hwcfg; + u16 chipid; + unsigned long flags; + + pr_info("%s:\n", __func__); + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + chipid = isp1362_read_reg16(isp1362_hcd, HCCHIPID); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + if ((chipid & HCCHIPID_MASK) != HCCHIPID_MAGIC) { + pr_err("%s: Invalid chip ID %04x\n", __func__, chipid); + return -ENODEV; + } + +#ifdef CHIP_BUFFER_TEST + ret = isp1362_chip_test(isp1362_hcd); + if (ret) + return -ENODEV; +#endif + spin_lock_irqsave(&isp1362_hcd->lock, flags); + /* clear interrupt status and disable all interrupt sources */ + isp1362_write_reg16(isp1362_hcd, HCuPINT, 0xff); + isp1362_write_reg16(isp1362_hcd, HCuPINTENB, 0); + + /* HW conf */ + hwcfg = HCHWCFG_INT_ENABLE | HCHWCFG_DBWIDTH(1); + if (board->sel15Kres) + hwcfg |= HCHWCFG_PULLDOWN_DS2 | + (MAX_ROOT_PORTS > 1) ? HCHWCFG_PULLDOWN_DS1 : 0; + if (board->clknotstop) + hwcfg |= HCHWCFG_CLKNOTSTOP; + if (board->oc_enable) + hwcfg |= HCHWCFG_ANALOG_OC; + if (board->int_act_high) + hwcfg |= HCHWCFG_INT_POL; + if (board->int_edge_triggered) + hwcfg |= HCHWCFG_INT_TRIGGER; + if (board->dreq_act_high) + hwcfg |= HCHWCFG_DREQ_POL; + if (board->dack_act_high) + hwcfg |= HCHWCFG_DACK_POL; + isp1362_write_reg16(isp1362_hcd, HCHWCFG, hwcfg); + isp1362_show_reg(isp1362_hcd, HCHWCFG); + isp1362_write_reg16(isp1362_hcd, HCDMACFG, 0); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + ret = isp1362_mem_config(hcd); + if (ret) + return ret; + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + + /* Root hub conf */ + isp1362_hcd->rhdesca = 0; + if (board->no_power_switching) + isp1362_hcd->rhdesca |= RH_A_NPS; + if (board->power_switching_mode) + isp1362_hcd->rhdesca |= RH_A_PSM; + if (board->potpg) + isp1362_hcd->rhdesca |= (board->potpg << 24) & RH_A_POTPGT; + else + isp1362_hcd->rhdesca |= (25 << 24) & RH_A_POTPGT; + + isp1362_write_reg32(isp1362_hcd, HCRHDESCA, isp1362_hcd->rhdesca & ~RH_A_OCPM); + isp1362_write_reg32(isp1362_hcd, HCRHDESCA, isp1362_hcd->rhdesca | RH_A_OCPM); + isp1362_hcd->rhdesca = isp1362_read_reg32(isp1362_hcd, HCRHDESCA); + + isp1362_hcd->rhdescb = RH_B_PPCM; + isp1362_write_reg32(isp1362_hcd, HCRHDESCB, isp1362_hcd->rhdescb); + isp1362_hcd->rhdescb = isp1362_read_reg32(isp1362_hcd, HCRHDESCB); + + isp1362_read_reg32(isp1362_hcd, HCFMINTVL); + isp1362_write_reg32(isp1362_hcd, HCFMINTVL, (FSMP(FI) << 16) | FI); + isp1362_write_reg32(isp1362_hcd, HCLSTHRESH, LSTHRESH); + + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + isp1362_hcd->hc_control = OHCI_USB_OPER; + hcd->state = HC_STATE_RUNNING; + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + /* Set up interrupts */ + isp1362_hcd->intenb = OHCI_INTR_MIE | OHCI_INTR_RHSC | OHCI_INTR_UE; + isp1362_hcd->intenb |= OHCI_INTR_RD; + isp1362_hcd->irqenb = HCuPINT_OPR | HCuPINT_SUSP; + isp1362_write_reg32(isp1362_hcd, HCINTENB, isp1362_hcd->intenb); + isp1362_write_reg16(isp1362_hcd, HCuPINTENB, isp1362_hcd->irqenb); + + /* Go operational */ + isp1362_write_reg32(isp1362_hcd, HCCONTROL, isp1362_hcd->hc_control); + /* enable global power */ + isp1362_write_reg32(isp1362_hcd, HCRHSTATUS, RH_HS_LPSC | RH_HS_DRWE); + + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +static struct hc_driver isp1362_hc_driver = { + .description = hcd_name, + .product_desc = "ISP1362 Host Controller", + .hcd_priv_size = sizeof(struct isp1362_hcd), + + .irq = isp1362_irq, + .flags = HCD_USB11 | HCD_MEMORY, + + .reset = isp1362_hc_reset, + .start = isp1362_hc_start, + .stop = isp1362_hc_stop, + + .urb_enqueue = isp1362_urb_enqueue, + .urb_dequeue = isp1362_urb_dequeue, + .endpoint_disable = isp1362_endpoint_disable, + + .get_frame_number = isp1362_get_frame, + + .hub_status_data = isp1362_hub_status_data, + .hub_control = isp1362_hub_control, + .bus_suspend = isp1362_bus_suspend, + .bus_resume = isp1362_bus_resume, +}; + +/*-------------------------------------------------------------------------*/ + +#define resource_len(r) (((r)->end - (r)->start) + 1) + +static int __devexit isp1362_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + struct resource *res; + + remove_debug_file(isp1362_hcd); + DBG(0, "%s: Removing HCD\n", __func__); + usb_remove_hcd(hcd); + + DBG(0, "%s: Unmapping data_reg @ %08x\n", __func__, + (u32)isp1362_hcd->data_reg); + iounmap(isp1362_hcd->data_reg); + + DBG(0, "%s: Unmapping addr_reg @ %08x\n", __func__, + (u32)isp1362_hcd->addr_reg); + iounmap(isp1362_hcd->addr_reg); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + DBG(0, "%s: release mem_region: %08lx\n", __func__, (long unsigned int)res->start); + if (res) + release_mem_region(res->start, resource_len(res)); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + DBG(0, "%s: release mem_region: %08lx\n", __func__, (long unsigned int)res->start); + if (res) + release_mem_region(res->start, resource_len(res)); + + DBG(0, "%s: put_hcd\n", __func__); + usb_put_hcd(hcd); + DBG(0, "%s: Done\n", __func__); + + return 0; +} + +static int __init isp1362_probe(struct platform_device *pdev) +{ + struct usb_hcd *hcd; + struct isp1362_hcd *isp1362_hcd; + struct resource *addr, *data; + void __iomem *addr_reg; + void __iomem *data_reg; + int irq; + int retval = 0; + + /* basic sanity checks first. board-specific init logic should + * have initialized this the three resources and probably board + * specific platform_data. we don't probe for IRQs, and do only + * minimal sanity checking. + */ + if (pdev->num_resources < 3) { + retval = -ENODEV; + goto err1; + } + + data = platform_get_resource(pdev, IORESOURCE_MEM, 0); + addr = platform_get_resource(pdev, IORESOURCE_MEM, 1); + irq = platform_get_irq(pdev, 0); + if (!addr || !data || irq < 0) { + retval = -ENODEV; + goto err1; + } + +#ifdef CONFIG_USB_HCD_DMA + if (pdev->dev.dma_mask) { + struct resource *dma_res = platform_get_resource(pdev, IORESOURCE_MEM, 2); + + if (!dma_res) { + retval = -ENODEV; + goto err1; + } + isp1362_hcd->data_dma = dma_res->start; + isp1362_hcd->max_dma_size = resource_len(dma_res); + } +#else + if (pdev->dev.dma_mask) { + DBG(1, "won't do DMA"); + retval = -ENODEV; + goto err1; + } +#endif + + if (!request_mem_region(addr->start, resource_len(addr), hcd_name)) { + retval = -EBUSY; + goto err1; + } + addr_reg = ioremap(addr->start, resource_len(addr)); + if (addr_reg == NULL) { + retval = -ENOMEM; + goto err2; + } + + if (!request_mem_region(data->start, resource_len(data), hcd_name)) { + retval = -EBUSY; + goto err3; + } + data_reg = ioremap(data->start, resource_len(data)); + if (data_reg == NULL) { + retval = -ENOMEM; + goto err4; + } + + /* allocate and initialize hcd */ + hcd = usb_create_hcd(&isp1362_hc_driver, &pdev->dev, dev_name(&pdev->dev)); + if (!hcd) { + retval = -ENOMEM; + goto err5; + } + hcd->rsrc_start = data->start; + isp1362_hcd = hcd_to_isp1362_hcd(hcd); + isp1362_hcd->data_reg = data_reg; + isp1362_hcd->addr_reg = addr_reg; + + isp1362_hcd->next_statechange = jiffies; + spin_lock_init(&isp1362_hcd->lock); + INIT_LIST_HEAD(&isp1362_hcd->async); + INIT_LIST_HEAD(&isp1362_hcd->periodic); + INIT_LIST_HEAD(&isp1362_hcd->isoc); + INIT_LIST_HEAD(&isp1362_hcd->remove_list); + isp1362_hcd->board = pdev->dev.platform_data; +#if USE_PLATFORM_DELAY + if (!isp1362_hcd->board->delay) { + dev_err(hcd->self.controller, "No platform delay function given\n"); + retval = -ENODEV; + goto err6; + } +#endif + +#ifdef CONFIG_ARM + if (isp1362_hcd->board) + set_irq_type(irq, isp1362_hcd->board->int_act_high ? IRQT_RISING : IRQT_FALLING); +#endif + + retval = usb_add_hcd(hcd, irq, IRQF_TRIGGER_LOW | IRQF_DISABLED | IRQF_SHARED); + if (retval != 0) + goto err6; + pr_info("%s, irq %d\n", hcd->product_desc, irq); + + create_debug_file(isp1362_hcd); + + return 0; + + err6: + DBG(0, "%s: Freeing dev %08x\n", __func__, (u32)isp1362_hcd); + usb_put_hcd(hcd); + err5: + DBG(0, "%s: Unmapping data_reg @ %08x\n", __func__, (u32)data_reg); + iounmap(data_reg); + err4: + DBG(0, "%s: Releasing mem region %08lx\n", __func__, (long unsigned int)data->start); + release_mem_region(data->start, resource_len(data)); + err3: + DBG(0, "%s: Unmapping addr_reg @ %08x\n", __func__, (u32)addr_reg); + iounmap(addr_reg); + err2: + DBG(0, "%s: Releasing mem region %08lx\n", __func__, (long unsigned int)addr->start); + release_mem_region(addr->start, resource_len(addr)); + err1: + pr_err("%s: init error, %d\n", __func__, retval); + + return retval; +} + +#ifdef CONFIG_PM +static int isp1362_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + unsigned long flags; + int retval = 0; + + DBG(0, "%s: Suspending device\n", __func__); + + if (state.event == PM_EVENT_FREEZE) { + DBG(0, "%s: Suspending root hub\n", __func__); + retval = isp1362_bus_suspend(hcd); + } else { + DBG(0, "%s: Suspending RH ports\n", __func__); + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_reg32(isp1362_hcd, HCRHSTATUS, RH_HS_LPS); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + } + if (retval == 0) + pdev->dev.power.power_state = state; + return retval; +} + +static int isp1362_resume(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct isp1362_hcd *isp1362_hcd = hcd_to_isp1362_hcd(hcd); + unsigned long flags; + + DBG(0, "%s: Resuming\n", __func__); + + if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) { + DBG(0, "%s: Resume RH ports\n", __func__); + spin_lock_irqsave(&isp1362_hcd->lock, flags); + isp1362_write_reg32(isp1362_hcd, HCRHSTATUS, RH_HS_LPSC); + spin_unlock_irqrestore(&isp1362_hcd->lock, flags); + return 0; + } + + pdev->dev.power.power_state = PMSG_ON; + + return isp1362_bus_resume(isp1362_hcd_to_hcd(isp1362_hcd)); +} +#else +#define isp1362_suspend NULL +#define isp1362_resume NULL +#endif + +static struct platform_driver isp1362_driver = { + .probe = isp1362_probe, + .remove = __devexit_p(isp1362_remove), + + .suspend = isp1362_suspend, + .resume = isp1362_resume, + .driver = { + .name = (char *)hcd_name, + .owner = THIS_MODULE, + }, +}; + +/*-------------------------------------------------------------------------*/ + +static int __init isp1362_init(void) +{ + if (usb_disabled()) + return -ENODEV; + pr_info("driver %s, %s\n", hcd_name, DRIVER_VERSION); + return platform_driver_register(&isp1362_driver); +} +module_init(isp1362_init); + +static void __exit isp1362_cleanup(void) +{ + platform_driver_unregister(&isp1362_driver); +} +module_exit(isp1362_cleanup); diff --git a/drivers/usb/host/isp1362.h b/drivers/usb/host/isp1362.h new file mode 100644 index 000000000000..26e44fc8776f --- /dev/null +++ b/drivers/usb/host/isp1362.h @@ -0,0 +1,1079 @@ +/* + * ISP1362 HCD (Host Controller Driver) for USB. + * + * COPYRIGHT (C) by L. Wassmann <LW@KARO-electronics.de> + */ + +/* ------------------------------------------------------------------------- */ +/* + * Platform specific compile time options + */ +#if defined(CONFIG_ARCH_KARO) +#include <asm/arch/hardware.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/karo.h> + +#define USE_32BIT 1 + + +/* These options are mutually eclusive */ +#define USE_PLATFORM_DELAY 1 +#define USE_NDELAY 0 +/* + * MAX_ROOT_PORTS: Number of downstream ports + * + * The chip has two USB ports, one of which can be configured as + * an USB device port, so the value of this constant is implementation + * specific. + */ +#define MAX_ROOT_PORTS 2 +#define DUMMY_DELAY_ACCESS do {} while (0) + +/* insert platform specific definitions for other machines here */ +#elif defined(CONFIG_BLACKFIN) + +#include <linux/io.h> +#define USE_32BIT 0 +#define MAX_ROOT_PORTS 2 +#define USE_PLATFORM_DELAY 0 +#define USE_NDELAY 1 + +#define DUMMY_DELAY_ACCESS \ + do { \ + bfin_read16(ASYNC_BANK0_BASE); \ + bfin_read16(ASYNC_BANK0_BASE); \ + bfin_read16(ASYNC_BANK0_BASE); \ + } while (0) + +#undef insw +#undef outsw + +#define insw delayed_insw +#define outsw delayed_outsw + +static inline void delayed_outsw(unsigned int addr, void *buf, int len) +{ + unsigned short *bp = (unsigned short *)buf; + while (len--) { + DUMMY_DELAY_ACCESS; + outw(*bp++, addr); + } +} + +static inline void delayed_insw(unsigned int addr, void *buf, int len) +{ + unsigned short *bp = (unsigned short *)buf; + while (len--) { + DUMMY_DELAY_ACCESS; + *bp++ = inw((void *)addr); + } +} + +#else + +#define MAX_ROOT_PORTS 2 + +#define USE_32BIT 0 + +/* These options are mutually eclusive */ +#define USE_PLATFORM_DELAY 0 +#define USE_NDELAY 0 + +#define DUMMY_DELAY_ACCESS do {} while (0) + +#endif + + +/* ------------------------------------------------------------------------- */ + +#define USB_RESET_WIDTH 50 +#define MAX_XFER_SIZE 1023 + +/* Buffer sizes */ +#define ISP1362_BUF_SIZE 4096 +#define ISP1362_ISTL_BUFSIZE 512 +#define ISP1362_INTL_BLKSIZE 64 +#define ISP1362_INTL_BUFFERS 16 +#define ISP1362_ATL_BLKSIZE 64 + +#define ISP1362_REG_WRITE_OFFSET 0x80 + +#ifdef ISP1362_DEBUG +typedef const unsigned int isp1362_reg_t; + +#define REG_WIDTH_16 0x000 +#define REG_WIDTH_32 0x100 +#define REG_WIDTH_MASK 0x100 +#define REG_NO_MASK 0x0ff + +#define REG_ACCESS_R 0x200 +#define REG_ACCESS_W 0x400 +#define REG_ACCESS_RW 0x600 +#define REG_ACCESS_MASK 0x600 + +#define ISP1362_REG_NO(r) ((r) & REG_NO_MASK) + +#define _BUG_ON(x) BUG_ON(x) +#define _WARN_ON(x) WARN_ON(x) + +#define ISP1362_REG(name, addr, width, rw) \ +static isp1362_reg_t ISP1362_REG_##name = ((addr) | (width) | (rw)) + +#define REG_ACCESS_TEST(r) BUG_ON(((r) & ISP1362_REG_WRITE_OFFSET) && !((r) & REG_ACCESS_W)) +#define REG_WIDTH_TEST(r, w) BUG_ON(((r) & REG_WIDTH_MASK) != (w)) +#else +typedef const unsigned char isp1362_reg_t; +#define ISP1362_REG_NO(r) (r) +#define _BUG_ON(x) do {} while (0) +#define _WARN_ON(x) do {} while (0) + +#define ISP1362_REG(name, addr, width, rw) \ +static isp1362_reg_t ISP1362_REG_##name = addr + +#define REG_ACCESS_TEST(r) do {} while (0) +#define REG_WIDTH_TEST(r, w) do {} while (0) +#endif + +/* OHCI compatible registers */ +/* + * Note: Some of the ISP1362 'OHCI' registers implement only + * a subset of the bits defined in the OHCI spec. + * + * Bitmasks for the individual bits of these registers are defined in "ohci.h" + */ +ISP1362_REG(HCREVISION, 0x00, REG_WIDTH_32, REG_ACCESS_R); +ISP1362_REG(HCCONTROL, 0x01, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCCMDSTAT, 0x02, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCINTSTAT, 0x03, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCINTENB, 0x04, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCINTDIS, 0x05, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCFMINTVL, 0x0d, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCFMREM, 0x0e, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCFMNUM, 0x0f, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCLSTHRESH, 0x11, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCRHDESCA, 0x12, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCRHDESCB, 0x13, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCRHSTATUS, 0x14, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCRHPORT1, 0x15, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCRHPORT2, 0x16, REG_WIDTH_32, REG_ACCESS_RW); + +/* Philips ISP1362 specific registers */ +ISP1362_REG(HCHWCFG, 0x20, REG_WIDTH_16, REG_ACCESS_RW); +#define HCHWCFG_DISABLE_SUSPEND (1 << 15) +#define HCHWCFG_GLOBAL_PWRDOWN (1 << 14) +#define HCHWCFG_PULLDOWN_DS1 (1 << 13) +#define HCHWCFG_PULLDOWN_DS2 (1 << 12) +#define HCHWCFG_CLKNOTSTOP (1 << 11) +#define HCHWCFG_ANALOG_OC (1 << 10) +#define HCHWCFG_ONEINT (1 << 9) +#define HCHWCFG_DACK_MODE (1 << 8) +#define HCHWCFG_ONEDMA (1 << 7) +#define HCHWCFG_DACK_POL (1 << 6) +#define HCHWCFG_DREQ_POL (1 << 5) +#define HCHWCFG_DBWIDTH_MASK (0x03 << 3) +#define HCHWCFG_DBWIDTH(n) (((n) << 3) & HCHWCFG_DBWIDTH_MASK) +#define HCHWCFG_INT_POL (1 << 2) +#define HCHWCFG_INT_TRIGGER (1 << 1) +#define HCHWCFG_INT_ENABLE (1 << 0) + +ISP1362_REG(HCDMACFG, 0x21, REG_WIDTH_16, REG_ACCESS_RW); +#define HCDMACFG_CTR_ENABLE (1 << 7) +#define HCDMACFG_BURST_LEN_MASK (0x03 << 5) +#define HCDMACFG_BURST_LEN(n) (((n) << 5) & HCDMACFG_BURST_LEN_MASK) +#define HCDMACFG_BURST_LEN_1 HCDMACFG_BURST_LEN(0) +#define HCDMACFG_BURST_LEN_4 HCDMACFG_BURST_LEN(1) +#define HCDMACFG_BURST_LEN_8 HCDMACFG_BURST_LEN(2) +#define HCDMACFG_DMA_ENABLE (1 << 4) +#define HCDMACFG_BUF_TYPE_MASK (0x07 << 1) +#define HCDMACFG_BUF_TYPE(n) (((n) << 1) & HCDMACFG_BUF_TYPE_MASK) +#define HCDMACFG_BUF_ISTL0 HCDMACFG_BUF_TYPE(0) +#define HCDMACFG_BUF_ISTL1 HCDMACFG_BUF_TYPE(1) +#define HCDMACFG_BUF_INTL HCDMACFG_BUF_TYPE(2) +#define HCDMACFG_BUF_ATL HCDMACFG_BUF_TYPE(3) +#define HCDMACFG_BUF_DIRECT HCDMACFG_BUF_TYPE(4) +#define HCDMACFG_DMA_RW_SELECT (1 << 0) + +ISP1362_REG(HCXFERCTR, 0x22, REG_WIDTH_16, REG_ACCESS_RW); + +ISP1362_REG(HCuPINT, 0x24, REG_WIDTH_16, REG_ACCESS_RW); +#define HCuPINT_SOF (1 << 0) +#define HCuPINT_ISTL0 (1 << 1) +#define HCuPINT_ISTL1 (1 << 2) +#define HCuPINT_EOT (1 << 3) +#define HCuPINT_OPR (1 << 4) +#define HCuPINT_SUSP (1 << 5) +#define HCuPINT_CLKRDY (1 << 6) +#define HCuPINT_INTL (1 << 7) +#define HCuPINT_ATL (1 << 8) +#define HCuPINT_OTG (1 << 9) + +ISP1362_REG(HCuPINTENB, 0x25, REG_WIDTH_16, REG_ACCESS_RW); +/* same bit definitions apply as for HCuPINT */ + +ISP1362_REG(HCCHIPID, 0x27, REG_WIDTH_16, REG_ACCESS_R); +#define HCCHIPID_MASK 0xff00 +#define HCCHIPID_MAGIC 0x3600 + +ISP1362_REG(HCSCRATCH, 0x28, REG_WIDTH_16, REG_ACCESS_RW); + +ISP1362_REG(HCSWRES, 0x29, REG_WIDTH_16, REG_ACCESS_W); +#define HCSWRES_MAGIC 0x00f6 + +ISP1362_REG(HCBUFSTAT, 0x2c, REG_WIDTH_16, REG_ACCESS_RW); +#define HCBUFSTAT_ISTL0_FULL (1 << 0) +#define HCBUFSTAT_ISTL1_FULL (1 << 1) +#define HCBUFSTAT_INTL_ACTIVE (1 << 2) +#define HCBUFSTAT_ATL_ACTIVE (1 << 3) +#define HCBUFSTAT_RESET_HWPP (1 << 4) +#define HCBUFSTAT_ISTL0_ACTIVE (1 << 5) +#define HCBUFSTAT_ISTL1_ACTIVE (1 << 6) +#define HCBUFSTAT_ISTL0_DONE (1 << 8) +#define HCBUFSTAT_ISTL1_DONE (1 << 9) +#define HCBUFSTAT_PAIRED_PTDPP (1 << 10) + +ISP1362_REG(HCDIRADDR, 0x32, REG_WIDTH_32, REG_ACCESS_RW); +#define HCDIRADDR_ADDR_MASK 0x0000ffff +#define HCDIRADDR_ADDR(n) (((n) << 0) & HCDIRADDR_ADDR_MASK) +#define HCDIRADDR_COUNT_MASK 0xffff0000 +#define HCDIRADDR_COUNT(n) (((n) << 16) & HCDIRADDR_COUNT_MASK) +ISP1362_REG(HCDIRDATA, 0x45, REG_WIDTH_16, REG_ACCESS_RW); + +ISP1362_REG(HCISTLBUFSZ, 0x30, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCISTL0PORT, 0x40, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCISTL1PORT, 0x42, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCISTLRATE, 0x47, REG_WIDTH_16, REG_ACCESS_RW); + +ISP1362_REG(HCINTLBUFSZ, 0x33, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCINTLPORT, 0x43, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCINTLBLKSZ, 0x53, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCINTLDONE, 0x17, REG_WIDTH_32, REG_ACCESS_R); +ISP1362_REG(HCINTLSKIP, 0x18, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCINTLLAST, 0x19, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCINTLCURR, 0x1a, REG_WIDTH_16, REG_ACCESS_R); + +ISP1362_REG(HCATLBUFSZ, 0x34, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCATLPORT, 0x44, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCATLBLKSZ, 0x54, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCATLDONE, 0x1b, REG_WIDTH_32, REG_ACCESS_R); +ISP1362_REG(HCATLSKIP, 0x1c, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCATLLAST, 0x1d, REG_WIDTH_32, REG_ACCESS_RW); +ISP1362_REG(HCATLCURR, 0x1e, REG_WIDTH_16, REG_ACCESS_R); + +ISP1362_REG(HCATLDTC, 0x51, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(HCATLDTCTO, 0x52, REG_WIDTH_16, REG_ACCESS_RW); + + +ISP1362_REG(OTGCONTROL, 0x62, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(OTGSTATUS, 0x67, REG_WIDTH_16, REG_ACCESS_R); +ISP1362_REG(OTGINT, 0x68, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(OTGINTENB, 0x69, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(OTGTIMER, 0x6A, REG_WIDTH_16, REG_ACCESS_RW); +ISP1362_REG(OTGALTTMR, 0x6C, REG_WIDTH_16, REG_ACCESS_RW); + +/* Philips transfer descriptor, cpu-endian */ +struct ptd { + u16 count; +#define PTD_COUNT_MSK (0x3ff << 0) +#define PTD_TOGGLE_MSK (1 << 10) +#define PTD_ACTIVE_MSK (1 << 11) +#define PTD_CC_MSK (0xf << 12) + u16 mps; +#define PTD_MPS_MSK (0x3ff << 0) +#define PTD_SPD_MSK (1 << 10) +#define PTD_LAST_MSK (1 << 11) +#define PTD_EP_MSK (0xf << 12) + u16 len; +#define PTD_LEN_MSK (0x3ff << 0) +#define PTD_DIR_MSK (3 << 10) +#define PTD_DIR_SETUP (0) +#define PTD_DIR_OUT (1) +#define PTD_DIR_IN (2) + u16 faddr; +#define PTD_FA_MSK (0x7f << 0) +/* PTD Byte 7: [StartingFrame (if ISO PTD) | StartingFrame[0..4], PollingRate[0..2] (if INT PTD)] */ +#define PTD_SF_ISO_MSK (0xff << 8) +#define PTD_SF_INT_MSK (0x1f << 8) +#define PTD_PR_MSK (0x07 << 13) +} __attribute__ ((packed, aligned(2))); +#define PTD_HEADER_SIZE sizeof(struct ptd) + +/* ------------------------------------------------------------------------- */ +/* Copied from ohci.h: */ +/* + * Hardware transfer status codes -- CC from PTD + */ +#define PTD_CC_NOERROR 0x00 +#define PTD_CC_CRC 0x01 +#define PTD_CC_BITSTUFFING 0x02 +#define PTD_CC_DATATOGGLEM 0x03 +#define PTD_CC_STALL 0x04 +#define PTD_DEVNOTRESP 0x05 +#define PTD_PIDCHECKFAIL 0x06 +#define PTD_UNEXPECTEDPID 0x07 +#define PTD_DATAOVERRUN 0x08 +#define PTD_DATAUNDERRUN 0x09 + /* 0x0A, 0x0B reserved for hardware */ +#define PTD_BUFFEROVERRUN 0x0C +#define PTD_BUFFERUNDERRUN 0x0D + /* 0x0E, 0x0F reserved for HCD */ +#define PTD_NOTACCESSED 0x0F + + +/* map OHCI TD status codes (CC) to errno values */ +static const int cc_to_error[16] = { + /* No Error */ 0, + /* CRC Error */ -EILSEQ, + /* Bit Stuff */ -EPROTO, + /* Data Togg */ -EILSEQ, + /* Stall */ -EPIPE, + /* DevNotResp */ -ETIMEDOUT, + /* PIDCheck */ -EPROTO, + /* UnExpPID */ -EPROTO, + /* DataOver */ -EOVERFLOW, + /* DataUnder */ -EREMOTEIO, + /* (for hw) */ -EIO, + /* (for hw) */ -EIO, + /* BufferOver */ -ECOMM, + /* BuffUnder */ -ENOSR, + /* (for HCD) */ -EALREADY, + /* (for HCD) */ -EALREADY +}; + + +/* + * HcControl (control) register masks + */ +#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */ +#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */ +#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */ + +/* pre-shifted values for HCFS */ +# define OHCI_USB_RESET (0 << 6) +# define OHCI_USB_RESUME (1 << 6) +# define OHCI_USB_OPER (2 << 6) +# define OHCI_USB_SUSPEND (3 << 6) + +/* + * HcCommandStatus (cmdstatus) register masks + */ +#define OHCI_HCR (1 << 0) /* host controller reset */ +#define OHCI_SOC (3 << 16) /* scheduling overrun count */ + +/* + * masks used with interrupt registers: + * HcInterruptStatus (intrstatus) + * HcInterruptEnable (intrenable) + * HcInterruptDisable (intrdisable) + */ +#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */ +#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */ +#define OHCI_INTR_SF (1 << 2) /* start frame */ +#define OHCI_INTR_RD (1 << 3) /* resume detect */ +#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */ +#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */ +#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */ +#define OHCI_INTR_OC (1 << 30) /* ownership change */ +#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */ + +/* roothub.portstatus [i] bits */ +#define RH_PS_CCS 0x00000001 /* current connect status */ +#define RH_PS_PES 0x00000002 /* port enable status*/ +#define RH_PS_PSS 0x00000004 /* port suspend status */ +#define RH_PS_POCI 0x00000008 /* port over current indicator */ +#define RH_PS_PRS 0x00000010 /* port reset status */ +#define RH_PS_PPS 0x00000100 /* port power status */ +#define RH_PS_LSDA 0x00000200 /* low speed device attached */ +#define RH_PS_CSC 0x00010000 /* connect status change */ +#define RH_PS_PESC 0x00020000 /* port enable status change */ +#define RH_PS_PSSC 0x00040000 /* port suspend status change */ +#define RH_PS_OCIC 0x00080000 /* over current indicator change */ +#define RH_PS_PRSC 0x00100000 /* port reset status change */ + +/* roothub.status bits */ +#define RH_HS_LPS 0x00000001 /* local power status */ +#define RH_HS_OCI 0x00000002 /* over current indicator */ +#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */ +#define RH_HS_LPSC 0x00010000 /* local power status change */ +#define RH_HS_OCIC 0x00020000 /* over current indicator change */ +#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */ + +/* roothub.b masks */ +#define RH_B_DR 0x0000ffff /* device removable flags */ +#define RH_B_PPCM 0xffff0000 /* port power control mask */ + +/* roothub.a masks */ +#define RH_A_NDP (0xff << 0) /* number of downstream ports */ +#define RH_A_PSM (1 << 8) /* power switching mode */ +#define RH_A_NPS (1 << 9) /* no power switching */ +#define RH_A_DT (1 << 10) /* device type (mbz) */ +#define RH_A_OCPM (1 << 11) /* over current protection mode */ +#define RH_A_NOCP (1 << 12) /* no over current protection */ +#define RH_A_POTPGT (0xff << 24) /* power on to power good time */ + +#define FI 0x2edf /* 12000 bits per frame (-1) */ +#define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7)) +#define LSTHRESH 0x628 /* lowspeed bit threshold */ + +/* ------------------------------------------------------------------------- */ + +/* PTD accessor macros. */ +#define PTD_GET_COUNT(p) (((p)->count & PTD_COUNT_MSK) >> 0) +#define PTD_COUNT(v) (((v) << 0) & PTD_COUNT_MSK) +#define PTD_GET_TOGGLE(p) (((p)->count & PTD_TOGGLE_MSK) >> 10) +#define PTD_TOGGLE(v) (((v) << 10) & PTD_TOGGLE_MSK) +#define PTD_GET_ACTIVE(p) (((p)->count & PTD_ACTIVE_MSK) >> 11) +#define PTD_ACTIVE(v) (((v) << 11) & PTD_ACTIVE_MSK) +#define PTD_GET_CC(p) (((p)->count & PTD_CC_MSK) >> 12) +#define PTD_CC(v) (((v) << 12) & PTD_CC_MSK) +#define PTD_GET_MPS(p) (((p)->mps & PTD_MPS_MSK) >> 0) +#define PTD_MPS(v) (((v) << 0) & PTD_MPS_MSK) +#define PTD_GET_SPD(p) (((p)->mps & PTD_SPD_MSK) >> 10) +#define PTD_SPD(v) (((v) << 10) & PTD_SPD_MSK) +#define PTD_GET_LAST(p) (((p)->mps & PTD_LAST_MSK) >> 11) +#define PTD_LAST(v) (((v) << 11) & PTD_LAST_MSK) +#define PTD_GET_EP(p) (((p)->mps & PTD_EP_MSK) >> 12) +#define PTD_EP(v) (((v) << 12) & PTD_EP_MSK) +#define PTD_GET_LEN(p) (((p)->len & PTD_LEN_MSK) >> 0) +#define PTD_LEN(v) (((v) << 0) & PTD_LEN_MSK) +#define PTD_GET_DIR(p) (((p)->len & PTD_DIR_MSK) >> 10) +#define PTD_DIR(v) (((v) << 10) & PTD_DIR_MSK) +#define PTD_GET_FA(p) (((p)->faddr & PTD_FA_MSK) >> 0) +#define PTD_FA(v) (((v) << 0) & PTD_FA_MSK) +#define PTD_GET_SF_INT(p) (((p)->faddr & PTD_SF_INT_MSK) >> 8) +#define PTD_SF_INT(v) (((v) << 8) & PTD_SF_INT_MSK) +#define PTD_GET_SF_ISO(p) (((p)->faddr & PTD_SF_ISO_MSK) >> 8) +#define PTD_SF_ISO(v) (((v) << 8) & PTD_SF_ISO_MSK) +#define PTD_GET_PR(p) (((p)->faddr & PTD_PR_MSK) >> 13) +#define PTD_PR(v) (((v) << 13) & PTD_PR_MSK) + +#define LOG2_PERIODIC_SIZE 5 /* arbitrary; this matches OHCI */ +#define PERIODIC_SIZE (1 << LOG2_PERIODIC_SIZE) + +struct isp1362_ep { + struct usb_host_endpoint *hep; + struct usb_device *udev; + + /* philips transfer descriptor */ + struct ptd ptd; + + u8 maxpacket; + u8 epnum; + u8 nextpid; + u16 error_count; + u16 length; /* of current packet */ + s16 ptd_offset; /* buffer offset in ISP1362 where + PTD has been stored + (for access thru HCDIRDATA) */ + int ptd_index; + int num_ptds; + void *data; /* to databuf */ + /* queue of active EPs (the ones transmitted to the chip) */ + struct list_head active; + + /* periodic schedule */ + u8 branch; + u16 interval; + u16 load; + u16 last_iso; + + /* async schedule */ + struct list_head schedule; /* list of all EPs that need processing */ + struct list_head remove_list; + int num_req; +}; + +struct isp1362_ep_queue { + struct list_head active; /* list of PTDs currently processed by HC */ + atomic_t finishing; + unsigned long buf_map; + unsigned long skip_map; + int free_ptd; + u16 buf_start; + u16 buf_size; + u16 blk_size; /* PTD buffer block size for ATL and INTL */ + u8 buf_count; + u8 buf_avail; + char name[16]; + + /* for statistical tracking */ + u8 stat_maxptds; /* Max # of ptds seen simultaneously in fifo */ + u8 ptd_count; /* number of ptds submitted to this queue */ +}; + +struct isp1362_hcd { + spinlock_t lock; + void __iomem *addr_reg; + void __iomem *data_reg; + + struct isp1362_platform_data *board; + + struct proc_dir_entry *pde; + unsigned long stat1, stat2, stat4, stat8, stat16; + + /* HC registers */ + u32 intenb; /* "OHCI" interrupts */ + u16 irqenb; /* uP interrupts */ + + /* Root hub registers */ + u32 rhdesca; + u32 rhdescb; + u32 rhstatus; + u32 rhport[MAX_ROOT_PORTS]; + unsigned long next_statechange; + + /* HC control reg shadow copy */ + u32 hc_control; + + /* async schedule: control, bulk */ + struct list_head async; + + /* periodic schedule: int */ + u16 load[PERIODIC_SIZE]; + struct list_head periodic; + u16 fmindex; + + /* periodic schedule: isochronous */ + struct list_head isoc; + int istl_flip:1; + int irq_active:1; + + /* Schedules for the current frame */ + struct isp1362_ep_queue atl_queue; + struct isp1362_ep_queue intl_queue; + struct isp1362_ep_queue istl_queue[2]; + + /* list of PTDs retrieved from HC */ + struct list_head remove_list; + enum { + ISP1362_INT_SOF, + ISP1362_INT_ISTL0, + ISP1362_INT_ISTL1, + ISP1362_INT_EOT, + ISP1362_INT_OPR, + ISP1362_INT_SUSP, + ISP1362_INT_CLKRDY, + ISP1362_INT_INTL, + ISP1362_INT_ATL, + ISP1362_INT_OTG, + NUM_ISP1362_IRQS + } IRQ_NAMES; + unsigned int irq_stat[NUM_ISP1362_IRQS]; + int req_serial; +}; + +static inline const char *ISP1362_INT_NAME(int n) +{ + switch (n) { + case ISP1362_INT_SOF: return "SOF"; + case ISP1362_INT_ISTL0: return "ISTL0"; + case ISP1362_INT_ISTL1: return "ISTL1"; + case ISP1362_INT_EOT: return "EOT"; + case ISP1362_INT_OPR: return "OPR"; + case ISP1362_INT_SUSP: return "SUSP"; + case ISP1362_INT_CLKRDY: return "CLKRDY"; + case ISP1362_INT_INTL: return "INTL"; + case ISP1362_INT_ATL: return "ATL"; + case ISP1362_INT_OTG: return "OTG"; + default: return "unknown"; + } +} + +static inline void ALIGNSTAT(struct isp1362_hcd *isp1362_hcd, void *ptr) +{ + unsigned p = (unsigned)ptr; + if (!(p & 0xf)) + isp1362_hcd->stat16++; + else if (!(p & 0x7)) + isp1362_hcd->stat8++; + else if (!(p & 0x3)) + isp1362_hcd->stat4++; + else if (!(p & 0x1)) + isp1362_hcd->stat2++; + else + isp1362_hcd->stat1++; +} + +static inline struct isp1362_hcd *hcd_to_isp1362_hcd(struct usb_hcd *hcd) +{ + return (struct isp1362_hcd *) (hcd->hcd_priv); +} + +static inline struct usb_hcd *isp1362_hcd_to_hcd(struct isp1362_hcd *isp1362_hcd) +{ + return container_of((void *)isp1362_hcd, struct usb_hcd, hcd_priv); +} + +#define frame_before(f1, f2) ((s16)((u16)f1 - (u16)f2) < 0) + +/* + * ISP1362 HW Interface + */ + +#ifdef ISP1362_DEBUG +#define DBG(level, fmt...) \ + do { \ + if (dbg_level > level) \ + pr_debug(fmt); \ + } while (0) +#define _DBG(level, fmt...) \ + do { \ + if (dbg_level > level) \ + printk(fmt); \ + } while (0) +#else +#define DBG(fmt...) do {} while (0) +#define _DBG DBG +#endif + +#ifdef VERBOSE +# define VDBG(fmt...) DBG(3, fmt) +#else +# define VDBG(fmt...) do {} while (0) +#endif + +#ifdef REGISTERS +# define RDBG(fmt...) DBG(1, fmt) +#else +# define RDBG(fmt...) do {} while (0) +#endif + +#ifdef URB_TRACE +#define URB_DBG(fmt...) DBG(0, fmt) +#else +#define URB_DBG(fmt...) do {} while (0) +#endif + + +#if USE_PLATFORM_DELAY +#if USE_NDELAY +#error USE_PLATFORM_DELAY and USE_NDELAY defined simultaneously. +#endif +#define isp1362_delay(h, d) (h)->board->delay(isp1362_hcd_to_hcd(h)->self.controller, d) +#elif USE_NDELAY +#define isp1362_delay(h, d) ndelay(d) +#else +#define isp1362_delay(h, d) do {} while (0) +#endif + +#define get_urb(ep) ({ \ + BUG_ON(list_empty(&ep->hep->urb_list)); \ + container_of(ep->hep->urb_list.next, struct urb, urb_list); \ +}) + +/* basic access functions for ISP1362 chip registers */ +/* NOTE: The contents of the address pointer register cannot be read back! The driver must ensure, + * that all register accesses are performed with interrupts disabled, since the interrupt + * handler has no way of restoring the previous state. + */ +static void isp1362_write_addr(struct isp1362_hcd *isp1362_hcd, isp1362_reg_t reg) +{ + /*_BUG_ON((reg & ISP1362_REG_WRITE_OFFSET) && !(reg & REG_ACCESS_W));*/ + REG_ACCESS_TEST(reg); + _BUG_ON(!irqs_disabled()); + DUMMY_DELAY_ACCESS; + writew(ISP1362_REG_NO(reg), isp1362_hcd->addr_reg); + DUMMY_DELAY_ACCESS; + isp1362_delay(isp1362_hcd, 1); +} + +static void isp1362_write_data16(struct isp1362_hcd *isp1362_hcd, u16 val) +{ + _BUG_ON(!irqs_disabled()); + DUMMY_DELAY_ACCESS; + writew(val, isp1362_hcd->data_reg); +} + +static u16 isp1362_read_data16(struct isp1362_hcd *isp1362_hcd) +{ + u16 val; + + _BUG_ON(!irqs_disabled()); + DUMMY_DELAY_ACCESS; + val = readw(isp1362_hcd->data_reg); + + return val; +} + +static void isp1362_write_data32(struct isp1362_hcd *isp1362_hcd, u32 val) +{ + _BUG_ON(!irqs_disabled()); +#if USE_32BIT + DUMMY_DELAY_ACCESS; + writel(val, isp1362_hcd->data_reg); +#else + DUMMY_DELAY_ACCESS; + writew((u16)val, isp1362_hcd->data_reg); + DUMMY_DELAY_ACCESS; + writew(val >> 16, isp1362_hcd->data_reg); +#endif +} + +static u32 isp1362_read_data32(struct isp1362_hcd *isp1362_hcd) +{ + u32 val; + + _BUG_ON(!irqs_disabled()); +#if USE_32BIT + DUMMY_DELAY_ACCESS; + val = readl(isp1362_hcd->data_reg); +#else + DUMMY_DELAY_ACCESS; + val = (u32)readw(isp1362_hcd->data_reg); + DUMMY_DELAY_ACCESS; + val |= (u32)readw(isp1362_hcd->data_reg) << 16; +#endif + return val; +} + +/* use readsw/writesw to access the fifo whenever possible */ +/* assume HCDIRDATA or XFERCTR & addr_reg have been set up */ +static void isp1362_read_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 len) +{ + u8 *dp = buf; + u16 data; + + if (!len) + return; + + _BUG_ON(!irqs_disabled()); + + RDBG("%s: Reading %d byte from fifo to mem @ %p\n", __func__, len, buf); +#if USE_32BIT + if (len >= 4) { + RDBG("%s: Using readsl for %d dwords\n", __func__, len >> 2); + readsl(isp1362_hcd->data_reg, dp, len >> 2); + dp += len & ~3; + len &= 3; + } +#endif + if (len >= 2) { + RDBG("%s: Using readsw for %d words\n", __func__, len >> 1); + insw((unsigned long)isp1362_hcd->data_reg, dp, len >> 1); + dp += len & ~1; + len &= 1; + } + + BUG_ON(len & ~1); + if (len > 0) { + data = isp1362_read_data16(isp1362_hcd); + RDBG("%s: Reading trailing byte %02x to mem @ %08x\n", __func__, + (u8)data, (u32)dp); + *dp = (u8)data; + } +} + +static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 len) +{ + u8 *dp = buf; + u16 data; + + if (!len) + return; + + if ((unsigned)dp & 0x1) { + /* not aligned */ + for (; len > 1; len -= 2) { + data = *dp++; + data |= *dp++ << 8; + isp1362_write_data16(isp1362_hcd, data); + } + if (len) + isp1362_write_data16(isp1362_hcd, *dp); + return; + } + + _BUG_ON(!irqs_disabled()); + + RDBG("%s: Writing %d byte to fifo from memory @%p\n", __func__, len, buf); +#if USE_32BIT + if (len >= 4) { + RDBG("%s: Using writesl for %d dwords\n", __func__, len >> 2); + writesl(isp1362_hcd->data_reg, dp, len >> 2); + dp += len & ~3; + len &= 3; + } +#endif + if (len >= 2) { + RDBG("%s: Using writesw for %d words\n", __func__, len >> 1); + outsw((unsigned long)isp1362_hcd->data_reg, dp, len >> 1); + dp += len & ~1; + len &= 1; + } + + BUG_ON(len & ~1); + if (len > 0) { + /* finally write any trailing byte; we don't need to care + * about the high byte of the last word written + */ + data = (u16)*dp; + RDBG("%s: Sending trailing byte %02x from mem @ %08x\n", __func__, + data, (u32)dp); + isp1362_write_data16(isp1362_hcd, data); + } +} + +#define isp1362_read_reg16(d, r) ({ \ + u16 __v; \ + REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_16); \ + isp1362_write_addr(d, ISP1362_REG_##r); \ + __v = isp1362_read_data16(d); \ + RDBG("%s: Read %04x from %s[%02x]\n", __func__, __v, #r, \ + ISP1362_REG_NO(ISP1362_REG_##r)); \ + __v; \ +}) + +#define isp1362_read_reg32(d, r) ({ \ + u32 __v; \ + REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_32); \ + isp1362_write_addr(d, ISP1362_REG_##r); \ + __v = isp1362_read_data32(d); \ + RDBG("%s: Read %08x from %s[%02x]\n", __func__, __v, #r, \ + ISP1362_REG_NO(ISP1362_REG_##r)); \ + __v; \ +}) + +#define isp1362_write_reg16(d, r, v) { \ + REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_16); \ + isp1362_write_addr(d, (ISP1362_REG_##r) | ISP1362_REG_WRITE_OFFSET); \ + isp1362_write_data16(d, (u16)(v)); \ + RDBG("%s: Wrote %04x to %s[%02x]\n", __func__, (u16)(v), #r, \ + ISP1362_REG_NO(ISP1362_REG_##r)); \ +} + +#define isp1362_write_reg32(d, r, v) { \ + REG_WIDTH_TEST(ISP1362_REG_##r, REG_WIDTH_32); \ + isp1362_write_addr(d, (ISP1362_REG_##r) | ISP1362_REG_WRITE_OFFSET); \ + isp1362_write_data32(d, (u32)(v)); \ + RDBG("%s: Wrote %08x to %s[%02x]\n", __func__, (u32)(v), #r, \ + ISP1362_REG_NO(ISP1362_REG_##r)); \ +} + +#define isp1362_set_mask16(d, r, m) { \ + u16 __v; \ + __v = isp1362_read_reg16(d, r); \ + if ((__v | m) != __v) \ + isp1362_write_reg16(d, r, __v | m); \ +} + +#define isp1362_clr_mask16(d, r, m) { \ + u16 __v; \ + __v = isp1362_read_reg16(d, r); \ + if ((__v & ~m) != __v) \ + isp1362_write_reg16(d, r, __v & ~m); \ +} + +#define isp1362_set_mask32(d, r, m) { \ + u32 __v; \ + __v = isp1362_read_reg32(d, r); \ + if ((__v | m) != __v) \ + isp1362_write_reg32(d, r, __v | m); \ +} + +#define isp1362_clr_mask32(d, r, m) { \ + u32 __v; \ + __v = isp1362_read_reg32(d, r); \ + if ((__v & ~m) != __v) \ + isp1362_write_reg32(d, r, __v & ~m); \ +} + +#ifdef ISP1362_DEBUG +#define isp1362_show_reg(d, r) { \ + if ((ISP1362_REG_##r & REG_WIDTH_MASK) == REG_WIDTH_32) \ + DBG(0, "%-12s[%02x]: %08x\n", #r, \ + ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg32(d, r)); \ + else \ + DBG(0, "%-12s[%02x]: %04x\n", #r, \ + ISP1362_REG_NO(ISP1362_REG_##r), isp1362_read_reg16(d, r)); \ +} +#else +#define isp1362_show_reg(d, r) do {} while (0) +#endif + +static void __attribute__((__unused__)) isp1362_show_regs(struct isp1362_hcd *isp1362_hcd) +{ + isp1362_show_reg(isp1362_hcd, HCREVISION); + isp1362_show_reg(isp1362_hcd, HCCONTROL); + isp1362_show_reg(isp1362_hcd, HCCMDSTAT); + isp1362_show_reg(isp1362_hcd, HCINTSTAT); + isp1362_show_reg(isp1362_hcd, HCINTENB); + isp1362_show_reg(isp1362_hcd, HCFMINTVL); + isp1362_show_reg(isp1362_hcd, HCFMREM); + isp1362_show_reg(isp1362_hcd, HCFMNUM); + isp1362_show_reg(isp1362_hcd, HCLSTHRESH); + isp1362_show_reg(isp1362_hcd, HCRHDESCA); + isp1362_show_reg(isp1362_hcd, HCRHDESCB); + isp1362_show_reg(isp1362_hcd, HCRHSTATUS); + isp1362_show_reg(isp1362_hcd, HCRHPORT1); + isp1362_show_reg(isp1362_hcd, HCRHPORT2); + + isp1362_show_reg(isp1362_hcd, HCHWCFG); + isp1362_show_reg(isp1362_hcd, HCDMACFG); + isp1362_show_reg(isp1362_hcd, HCXFERCTR); + isp1362_show_reg(isp1362_hcd, HCuPINT); + + if (in_interrupt()) + DBG(0, "%-12s[%02x]: %04x\n", "HCuPINTENB", + ISP1362_REG_NO(ISP1362_REG_HCuPINTENB), isp1362_hcd->irqenb); + else + isp1362_show_reg(isp1362_hcd, HCuPINTENB); + isp1362_show_reg(isp1362_hcd, HCCHIPID); + isp1362_show_reg(isp1362_hcd, HCSCRATCH); + isp1362_show_reg(isp1362_hcd, HCBUFSTAT); + isp1362_show_reg(isp1362_hcd, HCDIRADDR); + /* Access would advance fifo + * isp1362_show_reg(isp1362_hcd, HCDIRDATA); + */ + isp1362_show_reg(isp1362_hcd, HCISTLBUFSZ); + isp1362_show_reg(isp1362_hcd, HCISTLRATE); + isp1362_show_reg(isp1362_hcd, HCINTLBUFSZ); + isp1362_show_reg(isp1362_hcd, HCINTLBLKSZ); + isp1362_show_reg(isp1362_hcd, HCINTLDONE); + isp1362_show_reg(isp1362_hcd, HCINTLSKIP); + isp1362_show_reg(isp1362_hcd, HCINTLLAST); + isp1362_show_reg(isp1362_hcd, HCINTLCURR); + isp1362_show_reg(isp1362_hcd, HCATLBUFSZ); + isp1362_show_reg(isp1362_hcd, HCATLBLKSZ); + /* only valid after ATL_DONE interrupt + * isp1362_show_reg(isp1362_hcd, HCATLDONE); + */ + isp1362_show_reg(isp1362_hcd, HCATLSKIP); + isp1362_show_reg(isp1362_hcd, HCATLLAST); + isp1362_show_reg(isp1362_hcd, HCATLCURR); + isp1362_show_reg(isp1362_hcd, HCATLDTC); + isp1362_show_reg(isp1362_hcd, HCATLDTCTO); +} + +static void isp1362_write_diraddr(struct isp1362_hcd *isp1362_hcd, u16 offset, u16 len) +{ + _BUG_ON(offset & 1); + _BUG_ON(offset >= ISP1362_BUF_SIZE); + _BUG_ON(len > ISP1362_BUF_SIZE); + _BUG_ON(offset + len > ISP1362_BUF_SIZE); + len = (len + 1) & ~1; + + isp1362_clr_mask16(isp1362_hcd, HCDMACFG, HCDMACFG_CTR_ENABLE); + isp1362_write_reg32(isp1362_hcd, HCDIRADDR, + HCDIRADDR_ADDR(offset) | HCDIRADDR_COUNT(len)); +} + +static void isp1362_read_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len) +{ + _BUG_ON(offset & 1); + + isp1362_write_diraddr(isp1362_hcd, offset, len); + + DBG(3, "%s: Reading %d byte from buffer @%04x to memory @ %08x\n", __func__, + len, offset, (u32)buf); + + isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); + _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); + + isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA); + + isp1362_read_fifo(isp1362_hcd, buf, len); + _WARN_ON(!(isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); + isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); + _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); +} + +static void isp1362_write_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 offset, int len) +{ + _BUG_ON(offset & 1); + + isp1362_write_diraddr(isp1362_hcd, offset, len); + + DBG(3, "%s: Writing %d byte to buffer @%04x from memory @ %08x\n", __func__, + len, offset, (u32)buf); + + isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); + _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); + + isp1362_write_addr(isp1362_hcd, ISP1362_REG_HCDIRDATA | ISP1362_REG_WRITE_OFFSET); + isp1362_write_fifo(isp1362_hcd, buf, len); + + _WARN_ON(!(isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); + isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); + _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); +} + +static void __attribute__((unused)) dump_data(char *buf, int len) +{ + if (dbg_level > 0) { + int k; + int lf = 0; + + for (k = 0; k < len; ++k) { + if (!lf) + DBG(0, "%04x:", k); + printk(" %02x", ((u8 *) buf)[k]); + lf = 1; + if (!k) + continue; + if (k % 16 == 15) { + printk("\n"); + lf = 0; + continue; + } + if (k % 8 == 7) + printk(" "); + if (k % 4 == 3) + printk(" "); + } + if (lf) + printk("\n"); + } +} + +#if defined(ISP1362_DEBUG) && defined(PTD_TRACE) + +static void dump_ptd(struct ptd *ptd) +{ + DBG(0, "EP %p: CC=%x EP=%d DIR=%x CNT=%d LEN=%d MPS=%d TGL=%x ACT=%x FA=%d SPD=%x SF=%x PR=%x LST=%x\n", + container_of(ptd, struct isp1362_ep, ptd), + PTD_GET_CC(ptd), PTD_GET_EP(ptd), PTD_GET_DIR(ptd), + PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd), + PTD_GET_TOGGLE(ptd), PTD_GET_ACTIVE(ptd), PTD_GET_FA(ptd), + PTD_GET_SPD(ptd), PTD_GET_SF_INT(ptd), PTD_GET_PR(ptd), PTD_GET_LAST(ptd)); + DBG(0, " %04x %04x %04x %04x\n", ptd->count, ptd->mps, ptd->len, ptd->faddr); +} + +static void dump_ptd_out_data(struct ptd *ptd, u8 *buf) +{ + if (dbg_level > 0) { + if (PTD_GET_DIR(ptd) != PTD_DIR_IN && PTD_GET_LEN(ptd)) { + DBG(0, "--out->\n"); + dump_data(buf, PTD_GET_LEN(ptd)); + } + } +} + +static void dump_ptd_in_data(struct ptd *ptd, u8 *buf) +{ + if (dbg_level > 0) { + if (PTD_GET_DIR(ptd) == PTD_DIR_IN && PTD_GET_COUNT(ptd)) { + DBG(0, "<--in--\n"); + dump_data(buf, PTD_GET_COUNT(ptd)); + } + DBG(0, "-----\n"); + } +} + +static void dump_ptd_queue(struct isp1362_ep_queue *epq) +{ + struct isp1362_ep *ep; + int dbg = dbg_level; + + dbg_level = 1; + list_for_each_entry(ep, &epq->active, active) { + dump_ptd(&ep->ptd); + dump_data(ep->data, ep->length); + } + dbg_level = dbg; +} +#else +#define dump_ptd(ptd) do {} while (0) +#define dump_ptd_in_data(ptd, buf) do {} while (0) +#define dump_ptd_out_data(ptd, buf) do {} while (0) +#define dump_ptd_data(ptd, buf) do {} while (0) +#define dump_ptd_queue(epq) do {} while (0) +#endif diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c index 15438469f21a..9600a58299db 100644 --- a/drivers/usb/host/isp1760-hcd.c +++ b/drivers/usb/host/isp1760-hcd.c @@ -386,6 +386,10 @@ static int isp1760_hc_setup(struct usb_hcd *hcd) hwmode |= HW_DACK_POL_HIGH; if (priv->devflags & ISP1760_FLAG_DREQ_POL_HIGH) hwmode |= HW_DREQ_POL_HIGH; + if (priv->devflags & ISP1760_FLAG_INTR_POL_HIGH) + hwmode |= HW_INTR_HIGH_ACT; + if (priv->devflags & ISP1760_FLAG_INTR_EDGE_TRIG) + hwmode |= HW_INTR_EDGE_TRIG; /* * We have to set this first in case we're in 16-bit mode. diff --git a/drivers/usb/host/isp1760-hcd.h b/drivers/usb/host/isp1760-hcd.h index 462f4943cb1b..6931ef5c9650 100644 --- a/drivers/usb/host/isp1760-hcd.h +++ b/drivers/usb/host/isp1760-hcd.h @@ -142,6 +142,8 @@ typedef void (packet_enqueue)(struct usb_hcd *hcd, struct isp1760_qh *qh, #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 */ +#define ISP1760_FLAG_INTR_POL_HIGH 0x00000080 /* Interrupt polarity active high */ +#define ISP1760_FLAG_INTR_EDGE_TRIG 0x00000100 /* Interrupt edge triggered */ /* chip memory management */ struct memory_chunk { diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index d4feebfc63bd..1c9f977a5c9c 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -3,6 +3,7 @@ * Currently there is support for * - OpenFirmware * - PCI + * - PDEV (generic platform device centralized driver model) * * (c) 2007 Sebastian Siewior <bigeasy@linutronix.de> * @@ -11,6 +12,7 @@ #include <linux/usb.h> #include <linux/io.h> #include <linux/platform_device.h> +#include <linux/usb/isp1760.h> #include "../core/hcd.h" #include "isp1760-hcd.h" @@ -308,6 +310,8 @@ static int __devinit isp1760_plat_probe(struct platform_device *pdev) struct resource *mem_res; struct resource *irq_res; resource_size_t mem_size; + struct isp1760_platform_data *priv = pdev->dev.platform_data; + unsigned int devflags = 0; unsigned long irqflags = IRQF_SHARED | IRQF_DISABLED; mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -330,8 +334,23 @@ static int __devinit isp1760_plat_probe(struct platform_device *pdev) } irqflags |= irq_res->flags & IRQF_TRIGGER_MASK; + if (priv) { + if (priv->is_isp1761) + devflags |= ISP1760_FLAG_ISP1761; + if (priv->bus_width_16) + devflags |= ISP1760_FLAG_BUS_WIDTH_16; + if (priv->port1_otg) + devflags |= ISP1760_FLAG_OTG_EN; + if (priv->analog_oc) + devflags |= ISP1760_FLAG_ANALOG_OC; + if (priv->dack_polarity_high) + devflags |= ISP1760_FLAG_DACK_POL_HIGH; + if (priv->dreq_polarity_high) + devflags |= ISP1760_FLAG_DREQ_POL_HIGH; + } + hcd = isp1760_register(mem_res->start, mem_size, irq_res->start, - irqflags, &pdev->dev, dev_name(&pdev->dev), 0); + irqflags, &pdev->dev, dev_name(&pdev->dev), devflags); if (IS_ERR(hcd)) { pr_warning("isp1760: Failed to register the HCD device\n"); ret = -ENODEV; diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index bb5e6f671578..7ccffcbe7b6f 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -148,7 +148,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, at91_start_hc(pdev); ohci_hcd_init(hcd_to_ohci(hcd)); - retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED); + retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED); if (retval == 0) return retval; diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c index 2ac4e022a13f..e4380082ebb1 100644 --- a/drivers/usb/host/ohci-au1xxx.c +++ b/drivers/usb/host/ohci-au1xxx.c @@ -248,10 +248,9 @@ static int ohci_hcd_au1xxx_drv_remove(struct platform_device *pdev) } #ifdef CONFIG_PM -static int ohci_hcd_au1xxx_drv_suspend(struct platform_device *pdev, - pm_message_t message) +static int ohci_hcd_au1xxx_drv_suspend(struct device *dev) { - struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct usb_hcd *hcd = dev_get_drvdata(dev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); unsigned long flags; int rc; @@ -274,10 +273,6 @@ static int ohci_hcd_au1xxx_drv_suspend(struct platform_device *pdev, ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); (void)ohci_readl(ohci, &ohci->regs->intrdisable); - /* make sure snapshot being resumed re-enumerates everything */ - if (message.event == PM_EVENT_PRETHAW) - ohci_usb_reset(ohci); - clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); au1xxx_stop_ohc(); @@ -287,9 +282,9 @@ bail: return rc; } -static int ohci_hcd_au1xxx_drv_resume(struct platform_device *pdev) +static int ohci_hcd_au1xxx_drv_resume(struct device *dev) { - struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct usb_hcd *hcd = dev_get_drvdata(dev); au1xxx_start_ohc(); @@ -298,20 +293,26 @@ static int ohci_hcd_au1xxx_drv_resume(struct platform_device *pdev) return 0; } + +static struct dev_pm_ops au1xxx_ohci_pmops = { + .suspend = ohci_hcd_au1xxx_drv_suspend, + .resume = ohci_hcd_au1xxx_drv_resume, +}; + +#define AU1XXX_OHCI_PMOPS &au1xxx_ohci_pmops + #else -#define ohci_hcd_au1xxx_drv_suspend NULL -#define ohci_hcd_au1xxx_drv_resume NULL +#define AU1XXX_OHCI_PMOPS NULL #endif static struct platform_driver ohci_hcd_au1xxx_driver = { .probe = ohci_hcd_au1xxx_drv_probe, .remove = ohci_hcd_au1xxx_drv_remove, .shutdown = usb_hcd_platform_shutdown, - .suspend = ohci_hcd_au1xxx_drv_suspend, - .resume = ohci_hcd_au1xxx_drv_resume, .driver = { .name = "au1xxx-ohci", .owner = THIS_MODULE, + .pm = AU1XXX_OHCI_PMOPS, }, }; diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 58151687d351..78bb7710f36d 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -34,7 +34,6 @@ #include <linux/usb/otg.h> #include <linux/dma-mapping.h> #include <linux/dmapool.h> -#include <linux/reboot.h> #include <linux/workqueue.h> #include <linux/debugfs.h> diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 61800742fc07..fd318bebc365 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -177,9 +177,13 @@ static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, if (inf->flags & NO_OC_PROTECTION) uhcrhda |= UHCRHDA_NOCP; + else + uhcrhda &= ~UHCRHDA_NOCP; if (inf->flags & OC_MODE_PERPORT) uhcrhda |= UHCRHDA_OCPM; + else + uhcrhda &= ~UHCRHDA_OCPM; if (inf->power_on_delay) { uhcrhda &= ~UHCRHDA_POTPGT(0xff); @@ -498,6 +502,9 @@ static int ohci_hcd_pxa27x_drv_resume(struct device *dev) struct usb_hcd *hcd = dev_get_drvdata(dev); struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); int status; + struct pxaohci_platform_data *inf; + + inf = pdev->dev.platform_data; if (time_before(jiffies, ohci->ohci.next_statechange)) msleep(5); @@ -506,6 +513,13 @@ static int ohci_hcd_pxa27x_drv_resume(struct device *dev) if ((status = pxa27x_start_hc(ohci, dev)) < 0) return status; + if (inf) { + /* Select Power Management Mode */ + pxa27x_ohci_select_pmm(ohci, inf->port_mode); + } else { + pr_err("No platform info on resume"); + } + ohci_finish_controller_resume(hcd); return 0; } diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index 5ac489ee3dab..50f57f468836 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -33,7 +33,6 @@ #include <linux/timer.h> #include <linux/list.h> #include <linux/interrupt.h> -#include <linux/reboot.h> #include <linux/usb.h> #include <linux/moduleparam.h> #include <linux/dma-mapping.h> diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 64e57bfe236b..acd582c02802 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -1422,7 +1422,6 @@ static int uhci_urb_enqueue(struct usb_hcd *hcd, goto err_submit_failed; /* Add this URB to the QH */ - urbp->qh = qh; list_add_tail(&urbp->node, &qh->queue); /* If the new URB is the first and only one on this QH then either diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c index c2050785a819..c632437c7649 100644 --- a/drivers/usb/host/whci/asl.c +++ b/drivers/usb/host/whci/asl.c @@ -227,11 +227,21 @@ void scan_async_work(struct work_struct *work) /* * Now that the ASL is updated, complete the removal of any * removed qsets. + * + * If the qset was to be reset, do so and reinsert it into the + * ASL if it has pending transfers. */ spin_lock_irq(&whc->lock); list_for_each_entry_safe(qset, t, &whc->async_removed_list, list_node) { qset_remove_complete(whc, qset); + if (qset->reset) { + qset_reset(whc, qset); + if (!list_empty(&qset->stds)) { + asl_qset_insert_begin(whc, qset); + queue_work(whc->workqueue, &whc->async_work); + } + } } spin_unlock_irq(&whc->lock); @@ -267,7 +277,7 @@ int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) else err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); if (!err) { - if (!qset->in_sw_list) + if (!qset->in_sw_list && !qset->remove) asl_qset_insert_begin(whc, qset); } else usb_hcd_unlink_urb_from_ep(&whc->wusbhc.usb_hcd, urb); diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c index e019a5058ab8..687b622a1612 100644 --- a/drivers/usb/host/whci/hcd.c +++ b/drivers/usb/host/whci/hcd.c @@ -192,19 +192,23 @@ static void whc_endpoint_reset(struct usb_hcd *usb_hcd, struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); struct whc *whc = wusbhc_to_whc(wusbhc); struct whc_qset *qset; + unsigned long flags; + + spin_lock_irqsave(&whc->lock, flags); qset = ep->hcpriv; if (qset) { qset->remove = 1; + qset->reset = 1; if (usb_endpoint_xfer_bulk(&ep->desc) || usb_endpoint_xfer_control(&ep->desc)) queue_work(whc->workqueue, &whc->async_work); else queue_work(whc->workqueue, &whc->periodic_work); - - qset_reset(whc, qset); } + + spin_unlock_irqrestore(&whc->lock, flags); } diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c index ff4ef9e910d9..a9e05bac6646 100644 --- a/drivers/usb/host/whci/pzl.c +++ b/drivers/usb/host/whci/pzl.c @@ -255,11 +255,21 @@ void scan_periodic_work(struct work_struct *work) /* * Now that the PZL is updated, complete the removal of any * removed qsets. + * + * If the qset was to be reset, do so and reinsert it into the + * PZL if it has pending transfers. */ spin_lock_irq(&whc->lock); list_for_each_entry_safe(qset, t, &whc->periodic_removed_list, list_node) { qset_remove_complete(whc, qset); + if (qset->reset) { + qset_reset(whc, qset); + if (!list_empty(&qset->stds)) { + qset_insert_in_sw_list(whc, qset); + queue_work(whc->workqueue, &whc->periodic_work); + } + } } spin_unlock_irq(&whc->lock); @@ -295,7 +305,7 @@ int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags) else err = qset_add_urb(whc, qset, urb, GFP_ATOMIC); if (!err) { - if (!qset->in_sw_list) + if (!qset->in_sw_list && !qset->remove) qset_insert_in_sw_list(whc, qset); } else usb_hcd_unlink_urb_from_ep(&whc->wusbhc.usb_hcd, urb); diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c index 640b38fbd051..1b9dc1571570 100644 --- a/drivers/usb/host/whci/qset.c +++ b/drivers/usb/host/whci/qset.c @@ -103,7 +103,6 @@ static void qset_fill_qh(struct whc_qset *qset, struct urb *urb) 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 = qset->qh.status & QH_STATUS_SEQ_MASK; @@ -125,7 +124,7 @@ void qset_clear(struct whc *whc, struct whc_qset *qset) */ void qset_reset(struct whc *whc, struct whc_qset *qset) { - wait_for_completion(&qset->remove_complete); + qset->reset = 0; qset->qh.status &= ~QH_STATUS_SEQ_MASK; qset->qh.cur_window = cpu_to_le32((1 << qset->max_burst) - 1); @@ -156,6 +155,7 @@ struct whc_qset *get_qset(struct whc *whc, struct urb *urb, void qset_remove_complete(struct whc *whc, struct whc_qset *qset) { + qset->remove = 0; list_del_init(&qset->list_node); complete(&qset->remove_complete); } diff --git a/drivers/usb/host/whci/whci-hc.h b/drivers/usb/host/whci/whci-hc.h index 794dba0d0f0a..e8d0001605be 100644 --- a/drivers/usb/host/whci/whci-hc.h +++ b/drivers/usb/host/whci/whci-hc.h @@ -264,6 +264,7 @@ struct whc_qset { unsigned in_sw_list:1; unsigned in_hw_list:1; unsigned remove:1; + unsigned reset:1; struct urb *pause_after_urb; struct completion remove_complete; int max_burst; diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c index 6da8887538c7..1337a9ce80b9 100644 --- a/drivers/usb/misc/idmouse.c +++ b/drivers/usb/misc/idmouse.c @@ -96,6 +96,8 @@ static int idmouse_probe(struct usb_interface *interface, const struct usb_device_id *id); static void idmouse_disconnect(struct usb_interface *interface); +static int idmouse_suspend(struct usb_interface *intf, pm_message_t message); +static int idmouse_resume(struct usb_interface *intf); /* file operation pointers */ static const struct file_operations idmouse_fops = { @@ -117,7 +119,11 @@ static struct usb_driver idmouse_driver = { .name = DRIVER_SHORT, .probe = idmouse_probe, .disconnect = idmouse_disconnect, + .suspend = idmouse_suspend, + .resume = idmouse_resume, + .reset_resume = idmouse_resume, .id_table = idmouse_table, + .supports_autosuspend = 1, }; static int idmouse_create_image(struct usb_idmouse *dev) @@ -197,6 +203,17 @@ reset: return result; } +/* PM operations are nops as this driver does IO only during open() */ +static int idmouse_suspend(struct usb_interface *intf, pm_message_t message) +{ + return 0; +} + +static int idmouse_resume(struct usb_interface *intf) +{ + return 0; +} + static inline void idmouse_delete(struct usb_idmouse *dev) { kfree(dev->bulk_in_buffer); @@ -235,9 +252,13 @@ static int idmouse_open(struct inode *inode, struct file *file) } else { /* create a new image and check for success */ + result = usb_autopm_get_interface(interface); + if (result) + goto error; result = idmouse_create_image (dev); if (result) goto error; + usb_autopm_put_interface(interface); /* increment our usage count for the driver */ ++dev->open; diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index ad4fb15b5dcb..90f130126c10 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -412,6 +412,9 @@ static unsigned int ld_usb_poll(struct file *file, poll_table *wait) dev = file->private_data; + if (!dev->intf) + return POLLERR | POLLHUP; + poll_wait(file, &dev->read_wait, wait); poll_wait(file, &dev->write_wait, wait); @@ -767,6 +770,9 @@ static void ld_usb_disconnect(struct usb_interface *intf) ld_usb_delete(dev); } else { dev->intf = NULL; + /* wake up pollers */ + wake_up_interruptible_all(&dev->read_wait); + wake_up_interruptible_all(&dev->write_wait); mutex_unlock(&dev->mutex); } diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index c1e2433f640d..046b8633864c 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -552,6 +552,9 @@ static unsigned int tower_poll (struct file *file, poll_table *wait) dev = file->private_data; + if (!dev->udev) + return POLLERR | POLLHUP; + poll_wait(file, &dev->read_wait, wait); poll_wait(file, &dev->write_wait, wait); @@ -1025,6 +1028,9 @@ static void tower_disconnect (struct usb_interface *interface) tower_delete (dev); } else { dev->udev = NULL; + /* wake up pollers */ + wake_up_interruptible_all(&dev->read_wait); + wake_up_interruptible_all(&dev->write_wait); mutex_unlock(&dev->lock); } diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index b4ec716de7da..0025847743f3 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -79,14 +79,12 @@ sisusb_free_buffers(struct sisusb_usb_data *sisusb) for (i = 0; i < NUMOBUFS; i++) { if (sisusb->obuf[i]) { - usb_buffer_free(sisusb->sisusb_dev, sisusb->obufsize, - sisusb->obuf[i], sisusb->transfer_dma_out[i]); + kfree(sisusb->obuf[i]); sisusb->obuf[i] = NULL; } } if (sisusb->ibuf) { - usb_buffer_free(sisusb->sisusb_dev, sisusb->ibufsize, - sisusb->ibuf, sisusb->transfer_dma_in); + kfree(sisusb->ibuf); sisusb->ibuf = NULL; } } @@ -230,8 +228,7 @@ sisusb_bulk_completeout(struct urb *urb) static int sisusb_bulkout_msg(struct sisusb_usb_data *sisusb, int index, unsigned int pipe, void *data, - int len, int *actual_length, int timeout, unsigned int tflags, - dma_addr_t transfer_dma) + int len, int *actual_length, int timeout, unsigned int tflags) { struct urb *urb = sisusb->sisurbout[index]; int retval, byteswritten = 0; @@ -245,9 +242,6 @@ sisusb_bulkout_msg(struct sisusb_usb_data *sisusb, int index, unsigned int pipe, urb->transfer_flags |= tflags; urb->actual_length = 0; - if ((urb->transfer_dma = transfer_dma)) - urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - /* Set up context */ sisusb->urbout_context[index].actual_length = (timeout) ? NULL : actual_length; @@ -297,8 +291,8 @@ sisusb_bulk_completein(struct urb *urb) } static int -sisusb_bulkin_msg(struct sisusb_usb_data *sisusb, unsigned int pipe, void *data, int len, - int *actual_length, int timeout, unsigned int tflags, dma_addr_t transfer_dma) +sisusb_bulkin_msg(struct sisusb_usb_data *sisusb, unsigned int pipe, void *data, + int len, int *actual_length, int timeout, unsigned int tflags) { struct urb *urb = sisusb->sisurbin; int retval, readbytes = 0; @@ -311,9 +305,6 @@ sisusb_bulkin_msg(struct sisusb_usb_data *sisusb, unsigned int pipe, void *data, urb->transfer_flags |= tflags; urb->actual_length = 0; - if ((urb->transfer_dma = transfer_dma)) - urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - sisusb->completein = 0; retval = usb_submit_urb(urb, GFP_ATOMIC); if (retval == 0) { @@ -422,8 +413,7 @@ static int sisusb_send_bulk_msg(struct sisusb_usb_data *sisusb, int ep, int len, thispass, &transferred_len, async ? 0 : 5 * HZ, - tflags, - sisusb->transfer_dma_out[index]); + tflags); if (result == -ETIMEDOUT) { @@ -432,29 +422,16 @@ static int sisusb_send_bulk_msg(struct sisusb_usb_data *sisusb, int ep, int len, return -ETIME; continue; + } - } else if ((result == 0) && !async && transferred_len) { + if ((result == 0) && !async && transferred_len) { thispass -= transferred_len; - if (thispass) { - if (sisusb->transfer_dma_out) { - /* If DMA, copy remaining - * to beginning of buffer - */ - memcpy(buffer, - buffer + transferred_len, - thispass); - } else { - /* If not DMA, simply increase - * the pointer - */ - buffer += transferred_len; - } - } + buffer += transferred_len; } else break; - }; + } if (result) return result; @@ -530,8 +507,7 @@ static int sisusb_recv_bulk_msg(struct sisusb_usb_data *sisusb, int ep, int len, thispass, &transferred_len, 5 * HZ, - tflags, - sisusb->transfer_dma_in); + tflags); if (transferred_len) thispass = transferred_len; @@ -3132,8 +3108,7 @@ static int sisusb_probe(struct usb_interface *intf, /* Allocate buffers */ sisusb->ibufsize = SISUSB_IBUF_SIZE; - if (!(sisusb->ibuf = usb_buffer_alloc(dev, SISUSB_IBUF_SIZE, - GFP_KERNEL, &sisusb->transfer_dma_in))) { + if (!(sisusb->ibuf = kmalloc(SISUSB_IBUF_SIZE, GFP_KERNEL))) { dev_err(&sisusb->sisusb_dev->dev, "Failed to allocate memory for input buffer"); retval = -ENOMEM; goto error_2; @@ -3142,9 +3117,7 @@ static int sisusb_probe(struct usb_interface *intf, sisusb->numobufs = 0; sisusb->obufsize = SISUSB_OBUF_SIZE; for (i = 0; i < NUMOBUFS; i++) { - if (!(sisusb->obuf[i] = usb_buffer_alloc(dev, SISUSB_OBUF_SIZE, - GFP_KERNEL, - &sisusb->transfer_dma_out[i]))) { + if (!(sisusb->obuf[i] = kmalloc(SISUSB_OBUF_SIZE, GFP_KERNEL))) { if (i == 0) { dev_err(&sisusb->sisusb_dev->dev, "Failed to allocate memory for output buffer\n"); retval = -ENOMEM; diff --git a/drivers/usb/misc/sisusbvga/sisusb.h b/drivers/usb/misc/sisusbvga/sisusb.h index cf0b4a5883f6..55492a5930bd 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.h +++ b/drivers/usb/misc/sisusbvga/sisusb.h @@ -123,8 +123,6 @@ struct sisusb_usb_data { int numobufs; /* number of obufs = number of out urbs */ char *obuf[NUMOBUFS], *ibuf; /* transfer buffers */ int obufsize, ibufsize; - dma_addr_t transfer_dma_out[NUMOBUFS]; - dma_addr_t transfer_dma_in; struct urb *sisurbout[NUMOBUFS]; struct urb *sisurbin; unsigned char urbstatus[NUMOBUFS]; diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c index 28a6a3a09538..3db255537e79 100644 --- a/drivers/usb/misc/usbsevseg.c +++ b/drivers/usb/misc/usbsevseg.c @@ -38,6 +38,7 @@ static char *display_textmodes[] = {"raw", "hex", "ascii", NULL}; struct usb_sevsegdev { struct usb_device *udev; + struct usb_interface *intf; u8 powered; u8 mode_msb; @@ -46,6 +47,8 @@ struct usb_sevsegdev { u8 textmode; u8 text[MAXLEN]; u16 textlength; + + u8 shadow_power; /* for PM */ }; /* sysfs_streq can't replace this completely @@ -65,6 +68,12 @@ static void update_display_powered(struct usb_sevsegdev *mydev) { int rc; + if (!mydev->shadow_power && mydev->powered) { + rc = usb_autopm_get_interface(mydev->intf); + if (rc < 0) + return; + } + rc = usb_control_msg(mydev->udev, usb_sndctrlpipe(mydev->udev, 0), 0x12, @@ -76,12 +85,18 @@ static void update_display_powered(struct usb_sevsegdev *mydev) 2000); if (rc < 0) dev_dbg(&mydev->udev->dev, "power retval = %d\n", rc); + + if (mydev->shadow_power && !mydev->powered) + usb_autopm_put_interface(mydev->intf); } static void update_display_mode(struct usb_sevsegdev *mydev) { int rc; + if(mydev->shadow_power != 1) + return; + rc = usb_control_msg(mydev->udev, usb_sndctrlpipe(mydev->udev, 0), 0x12, @@ -96,14 +111,17 @@ static void update_display_mode(struct usb_sevsegdev *mydev) dev_dbg(&mydev->udev->dev, "mode retval = %d\n", rc); } -static void update_display_visual(struct usb_sevsegdev *mydev) +static void update_display_visual(struct usb_sevsegdev *mydev, gfp_t mf) { int rc; int i; unsigned char *buffer; u8 decimals = 0; - buffer = kzalloc(MAXLEN, GFP_KERNEL); + if(mydev->shadow_power != 1) + return; + + buffer = kzalloc(MAXLEN, mf); if (!buffer) { dev_err(&mydev->udev->dev, "out of memory\n"); return; @@ -163,7 +181,7 @@ static ssize_t set_attr_##name(struct device *dev, \ struct usb_sevsegdev *mydev = usb_get_intfdata(intf); \ \ mydev->name = simple_strtoul(buf, NULL, 10); \ - update_fcn(mydev); \ + update_fcn(mydev); \ \ return count; \ } \ @@ -194,7 +212,7 @@ static ssize_t set_attr_text(struct device *dev, if (end > 0) memcpy(mydev->text, buf, end); - update_display_visual(mydev); + update_display_visual(mydev, GFP_KERNEL); return count; } @@ -242,7 +260,7 @@ static ssize_t set_attr_decimals(struct device *dev, if (buf[i] == '1') mydev->decimals[end-1-i] = 1; - update_display_visual(mydev); + update_display_visual(mydev, GFP_KERNEL); return count; } @@ -286,7 +304,7 @@ static ssize_t set_attr_textmode(struct device *dev, for (i = 0; display_textmodes[i]; i++) { if (sysfs_streq(display_textmodes[i], buf)) { mydev->textmode = i; - update_display_visual(mydev); + update_display_visual(mydev, GFP_KERNEL); return count; } } @@ -330,6 +348,7 @@ static int sevseg_probe(struct usb_interface *interface, } mydev->udev = usb_get_dev(udev); + mydev->intf = interface; usb_set_intfdata(interface, mydev); /*set defaults */ @@ -364,11 +383,49 @@ static void sevseg_disconnect(struct usb_interface *interface) dev_info(&interface->dev, "USB 7 Segment now disconnected\n"); } +static int sevseg_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct usb_sevsegdev *mydev; + + mydev = usb_get_intfdata(intf); + mydev->shadow_power = 0; + + return 0; +} + +static int sevseg_resume(struct usb_interface *intf) +{ + struct usb_sevsegdev *mydev; + + mydev = usb_get_intfdata(intf); + mydev->shadow_power = 1; + update_display_mode(mydev); + update_display_visual(mydev, GFP_NOIO); + + return 0; +} + +static int sevseg_reset_resume(struct usb_interface *intf) +{ + struct usb_sevsegdev *mydev; + + mydev = usb_get_intfdata(intf); + mydev->shadow_power = 1; + update_display_mode(mydev); + update_display_visual(mydev, GFP_NOIO); + + return 0; +} + static struct usb_driver sevseg_driver = { .name = "usbsevseg", .probe = sevseg_probe, .disconnect = sevseg_disconnect, + .suspend = sevseg_suspend, + .resume = sevseg_resume, + .reset_resume = sevseg_reset_resume, .id_table = id_table, + .supports_autosuspend = 1, }; static int __init usb_sevseg_init(void) diff --git a/drivers/usb/mon/Kconfig b/drivers/usb/mon/Kconfig index f28f350cd96a..635745f57fbd 100644 --- a/drivers/usb/mon/Kconfig +++ b/drivers/usb/mon/Kconfig @@ -5,11 +5,9 @@ config USB_MON tristate "USB Monitor" depends on USB - default y if USB=y - default m if USB=m help If you select this option, a component which captures the USB traffic between peripheral-specific drivers and HC drivers will be built. For more information, see <file:Documentation/usb/usbmon.txt>. - If unsure, say Y (if allowed), otherwise M. + If unsure, say Y, if allowed, otherwise M. diff --git a/drivers/usb/mon/Makefile b/drivers/usb/mon/Makefile index c6516b566731..384b198faa7c 100644 --- a/drivers/usb/mon/Makefile +++ b/drivers/usb/mon/Makefile @@ -2,6 +2,6 @@ # Makefile for USB monitor # -usbmon-objs := mon_main.o mon_stat.o mon_text.o mon_bin.o mon_dma.o +usbmon-objs := mon_main.o mon_stat.o mon_text.o mon_bin.o obj-$(CONFIG_USB_MON) += usbmon.o diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index 0f7a30b7d2d1..dfdc43e2e00d 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -220,9 +220,8 @@ static void mon_free_buff(struct mon_pgmap *map, int npages); /* * This is a "chunked memcpy". It does not manipulate any counters. - * But it returns the new offset for repeated application. */ -unsigned int mon_copy_to_buff(const struct mon_reader_bin *this, +static void mon_copy_to_buff(const struct mon_reader_bin *this, unsigned int off, const unsigned char *from, unsigned int length) { unsigned int step_len; @@ -247,7 +246,6 @@ unsigned int mon_copy_to_buff(const struct mon_reader_bin *this, from += step_len; length -= step_len; } - return off; } /* @@ -400,15 +398,8 @@ static char mon_bin_get_data(const struct mon_reader_bin *rp, unsigned int offset, struct urb *urb, unsigned int length) { - if (urb->dev->bus->uses_dma && - (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) { - mon_dmapeek_vec(rp, offset, urb->transfer_dma, length); - return 0; - } - if (urb->transfer_buffer == NULL) return 'Z'; - mon_copy_to_buff(rp, offset, urb->transfer_buffer, length); return 0; } @@ -635,7 +626,6 @@ static int mon_bin_open(struct inode *inode, struct file *file) spin_lock_init(&rp->b_lock); init_waitqueue_head(&rp->b_wait); mutex_init(&rp->fetch_lock); - rp->b_size = BUFF_DFL; size = sizeof(struct mon_pgmap) * (rp->b_size/CHUNK_SIZE); diff --git a/drivers/usb/mon/mon_dma.c b/drivers/usb/mon/mon_dma.c deleted file mode 100644 index 140cc80bd2b1..000000000000 --- a/drivers/usb/mon/mon_dma.c +++ /dev/null @@ -1,95 +0,0 @@ -/* - * The USB Monitor, inspired by Dave Harding's USBMon. - * - * mon_dma.c: Library which snoops on DMA areas. - * - * Copyright (C) 2005 Pete Zaitcev (zaitcev@redhat.com) - */ -#include <linux/kernel.h> -#include <linux/list.h> -#include <linux/highmem.h> -#include <asm/page.h> - -#include <linux/usb.h> /* Only needed for declarations in usb_mon.h */ -#include "usb_mon.h" - -/* - * PC-compatibles, are, fortunately, sufficiently cache-coherent for this. - */ -#if defined(__i386__) || defined(__x86_64__) /* CONFIG_ARCH_I386 doesn't exit */ -#define MON_HAS_UNMAP 1 - -#define phys_to_page(phys) pfn_to_page((phys) >> PAGE_SHIFT) - -char mon_dmapeek(unsigned char *dst, dma_addr_t dma_addr, int len) -{ - struct page *pg; - unsigned long flags; - unsigned char *map; - unsigned char *ptr; - - /* - * On i386, a DMA handle is the "physical" address of a page. - * In other words, the bus address is equal to physical address. - * There is no IOMMU. - */ - pg = phys_to_page(dma_addr); - - /* - * We are called from hardware IRQs in case of callbacks. - * But we can be called from softirq or process context in case - * of submissions. In such case, we need to protect KM_IRQ0. - */ - local_irq_save(flags); - map = kmap_atomic(pg, KM_IRQ0); - ptr = map + (dma_addr & (PAGE_SIZE-1)); - memcpy(dst, ptr, len); - kunmap_atomic(map, KM_IRQ0); - local_irq_restore(flags); - return 0; -} - -void mon_dmapeek_vec(const struct mon_reader_bin *rp, - unsigned int offset, dma_addr_t dma_addr, unsigned int length) -{ - unsigned long flags; - unsigned int step_len; - struct page *pg; - unsigned char *map; - unsigned long page_off, page_len; - - local_irq_save(flags); - while (length) { - /* compute number of bytes we are going to copy in this page */ - step_len = length; - page_off = dma_addr & (PAGE_SIZE-1); - page_len = PAGE_SIZE - page_off; - if (page_len < step_len) - step_len = page_len; - - /* copy data and advance pointers */ - pg = phys_to_page(dma_addr); - map = kmap_atomic(pg, KM_IRQ0); - offset = mon_copy_to_buff(rp, offset, map + page_off, step_len); - kunmap_atomic(map, KM_IRQ0); - dma_addr += step_len; - length -= step_len; - } - local_irq_restore(flags); -} - -#endif /* __i386__ */ - -#ifndef MON_HAS_UNMAP -char mon_dmapeek(unsigned char *dst, dma_addr_t dma_addr, int len) -{ - return 'D'; -} - -void mon_dmapeek_vec(const struct mon_reader_bin *rp, - unsigned int offset, dma_addr_t dma_addr, unsigned int length) -{ - ; -} - -#endif /* MON_HAS_UNMAP */ diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c index 5e0ab4201c00..e0c2db3b767b 100644 --- a/drivers/usb/mon/mon_main.c +++ b/drivers/usb/mon/mon_main.c @@ -361,7 +361,6 @@ static int __init mon_init(void) } // MOD_INC_USE_COUNT(which_module?); - mutex_lock(&usb_bus_list_lock); list_for_each_entry (ubus, &usb_bus_list, bus_list) { mon_bus_init(ubus); diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index a7eb4c99342c..9f1a9227ebe6 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -150,20 +150,6 @@ static inline char mon_text_get_data(struct mon_event_text *ep, struct urb *urb, return '>'; } - /* - * The check to see if it's safe to poke at data has an enormous - * number of corner cases, but it seems that the following is - * more or less safe. - * - * We do not even try to look at transfer_buffer, because it can - * contain non-NULL garbage in case the upper level promised to - * set DMA for the HCD. - */ - if (urb->dev->bus->uses_dma && - (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) { - return mon_dmapeek(ep->data, urb->transfer_dma, len); - } - if (urb->transfer_buffer == NULL) return 'Z'; /* '0' would be not as pretty. */ diff --git a/drivers/usb/mon/usb_mon.h b/drivers/usb/mon/usb_mon.h index f5d84ff8c101..df9a4df342c7 100644 --- a/drivers/usb/mon/usb_mon.h +++ b/drivers/usb/mon/usb_mon.h @@ -65,20 +65,6 @@ int __init mon_bin_init(void); void mon_bin_exit(void); /* - * DMA interface. - * - * XXX The vectored side needs a serious re-thinking. Abstracting vectors, - * like in Paolo's original patch, produces a double pkmap. We need an idea. -*/ -extern char mon_dmapeek(unsigned char *dst, dma_addr_t dma_addr, int len); - -struct mon_reader_bin; -extern void mon_dmapeek_vec(const struct mon_reader_bin *rp, - unsigned int offset, dma_addr_t dma_addr, unsigned int len); -extern unsigned int mon_copy_to_buff(const struct mon_reader_bin *rp, - unsigned int offset, const unsigned char *from, unsigned int len); - -/* */ extern struct mutex mon_lock; diff --git a/drivers/usb/serial/moto_modem.c b/drivers/usb/serial/moto_modem.c index b66b71ccd12b..99bd00f5188a 100644 --- a/drivers/usb/serial/moto_modem.c +++ b/drivers/usb/serial/moto_modem.c @@ -8,7 +8,7 @@ * published by the Free Software Foundation. * * {sigh} - * Mororola should be using the CDC ACM USB spec, but instead + * Motorola should be using the CDC ACM USB spec, but instead * they try to just "do their own thing"... This driver should handle a * few phones in which a basic "dumb serial connection" is needed to be * able to get a connection through to them. diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index fe47051dbef2..0ce86e665edd 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -592,6 +592,7 @@ static struct usb_driver option_driver = { #ifdef CONFIG_PM .suspend = usb_serial_suspend, .resume = usb_serial_resume, + .supports_autosuspend = 1, #endif .id_table = option_ids, .no_dynamic_id = 1, @@ -639,6 +640,12 @@ static int debug; #define IN_BUFLEN 4096 #define OUT_BUFLEN 4096 +struct option_intf_private { + spinlock_t susp_lock; + unsigned int suspended:1; + int in_flight; +}; + struct option_port_private { /* Input endpoints and buffer for this port */ struct urb *in_urbs[N_IN_URB]; @@ -647,6 +654,8 @@ struct option_port_private { struct urb *out_urbs[N_OUT_URB]; u8 *out_buffer[N_OUT_URB]; unsigned long out_busy; /* Bit vector of URBs in use */ + int opened; + struct usb_anchor delayed; /* Settings for the port */ int rts_state; /* Handshaking pins (outputs) */ @@ -693,12 +702,17 @@ module_exit(option_exit); static int option_probe(struct usb_serial *serial, const struct usb_device_id *id) { + struct option_intf_private *data; /* D-Link DWM 652 still exposes CD-Rom emulation interface in modem mode */ if (serial->dev->descriptor.idVendor == DLINK_VENDOR_ID && serial->dev->descriptor.idProduct == DLINK_PRODUCT_DWM_652 && serial->interface->cur_altsetting->desc.bInterfaceClass == 0x8) return -ENODEV; + data = serial->private = kzalloc(sizeof(struct option_intf_private), GFP_KERNEL); + if (!data) + return -ENOMEM; + spin_lock_init(&data->susp_lock); return 0; } @@ -755,12 +769,15 @@ static int option_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { struct option_port_private *portdata; + struct option_intf_private *intfdata; int i; int left, todo; struct urb *this_urb = NULL; /* spurious */ int err; + unsigned long flags; portdata = usb_get_serial_port_data(port); + intfdata = port->serial->private; dbg("%s: write (%d chars)", __func__, count); @@ -782,17 +799,33 @@ static int option_write(struct tty_struct *tty, struct usb_serial_port *port, dbg("%s: endpoint %d buf %d", __func__, usb_pipeendpoint(this_urb->pipe), i); + err = usb_autopm_get_interface_async(port->serial->interface); + if (err < 0) + break; + /* send the data */ memcpy(this_urb->transfer_buffer, buf, todo); this_urb->transfer_buffer_length = todo; - err = usb_submit_urb(this_urb, GFP_ATOMIC); - if (err) { - dbg("usb_submit_urb %p (write bulk) failed " - "(%d)", this_urb, err); - clear_bit(i, &portdata->out_busy); - continue; + spin_lock_irqsave(&intfdata->susp_lock, flags); + if (intfdata->suspended) { + usb_anchor_urb(this_urb, &portdata->delayed); + spin_unlock_irqrestore(&intfdata->susp_lock, flags); + } else { + intfdata->in_flight++; + spin_unlock_irqrestore(&intfdata->susp_lock, flags); + err = usb_submit_urb(this_urb, GFP_ATOMIC); + if (err) { + dbg("usb_submit_urb %p (write bulk) failed " + "(%d)", this_urb, err); + clear_bit(i, &portdata->out_busy); + spin_lock_irqsave(&intfdata->susp_lock, flags); + intfdata->in_flight--; + spin_unlock_irqrestore(&intfdata->susp_lock, flags); + continue; + } } + portdata->tx_start_time[i] = jiffies; buf += todo; left -= todo; @@ -836,7 +869,10 @@ static void option_indat_callback(struct urb *urb) if (err) printk(KERN_ERR "%s: resubmit read urb failed. " "(%d)", __func__, err); + else + usb_mark_last_busy(port->serial->dev); } + } return; } @@ -845,15 +881,21 @@ static void option_outdat_callback(struct urb *urb) { struct usb_serial_port *port; struct option_port_private *portdata; + struct option_intf_private *intfdata; int i; dbg("%s", __func__); port = urb->context; + intfdata = port->serial->private; usb_serial_port_softint(port); - + usb_autopm_put_interface_async(port->serial->interface); portdata = usb_get_serial_port_data(port); + spin_lock(&intfdata->susp_lock); + intfdata->in_flight--; + spin_unlock(&intfdata->susp_lock); + for (i = 0; i < N_OUT_URB; ++i) { if (portdata->out_urbs[i] == urb) { smp_mb__before_clear_bit(); @@ -963,10 +1005,13 @@ static int option_chars_in_buffer(struct tty_struct *tty) static int option_open(struct tty_struct *tty, struct usb_serial_port *port) { struct option_port_private *portdata; + struct option_intf_private *intfdata; + struct usb_serial *serial = port->serial; int i, err; struct urb *urb; portdata = usb_get_serial_port_data(port); + intfdata = serial->private; dbg("%s", __func__); @@ -985,6 +1030,12 @@ static int option_open(struct tty_struct *tty, struct usb_serial_port *port) option_send_setup(port); + serial->interface->needs_remote_wakeup = 1; + spin_lock_irq(&intfdata->susp_lock); + portdata->opened = 1; + spin_unlock_irq(&intfdata->susp_lock); + usb_autopm_put_interface(serial->interface); + return 0; } @@ -1009,16 +1060,23 @@ static void option_close(struct usb_serial_port *port) int i; struct usb_serial *serial = port->serial; struct option_port_private *portdata; + struct option_intf_private *intfdata = port->serial->private; dbg("%s", __func__); portdata = usb_get_serial_port_data(port); if (serial->dev) { /* Stop reading/writing urbs */ + spin_lock_irq(&intfdata->susp_lock); + portdata->opened = 0; + spin_unlock_irq(&intfdata->susp_lock); + for (i = 0; i < N_IN_URB; i++) usb_kill_urb(portdata->in_urbs[i]); for (i = 0; i < N_OUT_URB; i++) usb_kill_urb(portdata->out_urbs[i]); + usb_autopm_get_interface(serial->interface); + serial->interface->needs_remote_wakeup = 0; } } @@ -1123,6 +1181,7 @@ static int option_startup(struct usb_serial *serial) __func__, i); return 1; } + init_usb_anchor(&portdata->delayed); for (j = 0; j < N_IN_URB; j++) { buffer = (u8 *)__get_free_page(GFP_KERNEL); @@ -1225,18 +1284,52 @@ static void option_release(struct usb_serial *serial) #ifdef CONFIG_PM static int option_suspend(struct usb_serial *serial, pm_message_t message) { + struct option_intf_private *intfdata = serial->private; + int b; + dbg("%s entered", __func__); + + if (serial->dev->auto_pm) { + spin_lock_irq(&intfdata->susp_lock); + b = intfdata->in_flight; + spin_unlock_irq(&intfdata->susp_lock); + + if (b) + return -EBUSY; + } + + spin_lock_irq(&intfdata->susp_lock); + intfdata->suspended = 1; + spin_unlock_irq(&intfdata->susp_lock); stop_read_write_urbs(serial); return 0; } +static void play_delayed(struct usb_serial_port *port) +{ + struct option_intf_private *data; + struct option_port_private *portdata; + struct urb *urb; + int err; + + portdata = usb_get_serial_port_data(port); + data = port->serial->private; + while ((urb = usb_get_from_anchor(&portdata->delayed))) { + err = usb_submit_urb(urb, GFP_ATOMIC); + if (!err) + data->in_flight++; + } +} + static int option_resume(struct usb_serial *serial) { - int err, i, j; + int i, j; struct usb_serial_port *port; - struct urb *urb; + struct option_intf_private *intfdata = serial->private; struct option_port_private *portdata; + struct urb *urb; + int err = 0; dbg("%s entered", __func__); /* get the interrupt URBs resubmitted unconditionally */ @@ -1251,7 +1344,7 @@ static int option_resume(struct usb_serial *serial) if (err < 0) { err("%s: Error %d for interrupt URB of port%d", __func__, err, i); - return err; + goto err_out; } } @@ -1259,27 +1352,32 @@ static int option_resume(struct usb_serial *serial) /* walk all ports */ port = serial->port[i]; portdata = usb_get_serial_port_data(port); - mutex_lock(&port->mutex); /* skip closed ports */ - if (!port->port.count) { - mutex_unlock(&port->mutex); + spin_lock_irq(&intfdata->susp_lock); + if (!portdata->opened) { + spin_unlock_irq(&intfdata->susp_lock); continue; } for (j = 0; j < N_IN_URB; j++) { urb = portdata->in_urbs[j]; - err = usb_submit_urb(urb, GFP_NOIO); + err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) { - mutex_unlock(&port->mutex); err("%s: Error %d for bulk URB %d", __func__, err, i); - return err; + spin_unlock_irq(&intfdata->susp_lock); + goto err_out; } } - mutex_unlock(&port->mutex); + play_delayed(port); + spin_unlock_irq(&intfdata->susp_lock); } - return 0; + spin_lock_irq(&intfdata->susp_lock); + intfdata->suspended = 0; + spin_unlock_irq(&intfdata->susp_lock); +err_out: + return err; } #endif diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 80c1f4d8e910..192710352638 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -292,8 +292,6 @@ bailout_serial_put: static void serial_do_down(struct usb_serial_port *port) { struct usb_serial_driver *drv = port->serial->type; - struct usb_serial *serial; - struct module *owner; /* The console is magical, do not hang up the console hardware or there will be tears */ @@ -301,12 +299,8 @@ static void serial_do_down(struct usb_serial_port *port) return; mutex_lock(&port->mutex); - serial = port->serial; - owner = serial->type->driver.owner; - if (drv->close) drv->close(port); - mutex_unlock(&port->mutex); } @@ -1221,15 +1215,19 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message) serial->suspending = 1; + if (serial->type->suspend) { + r = serial->type->suspend(serial, message); + if (r < 0) + goto err_out; + } + for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; if (port) kill_traffic(port); } - if (serial->type->suspend) - r = serial->type->suspend(serial, message); - +err_out: return r; } EXPORT_SYMBOL(usb_serial_suspend); diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c index 2b6e565262c2..ded836b02d7b 100644 --- a/drivers/usb/storage/datafab.c +++ b/drivers/usb/storage/datafab.c @@ -334,7 +334,7 @@ static int datafab_determine_lun(struct us_data *us, unsigned char *buf; int count = 0, rc; - if (!us || !info) + if (!info) return USB_STOR_TRANSPORT_ERROR; memcpy(command, scommand, 8); @@ -399,7 +399,7 @@ static int datafab_id_device(struct us_data *us, unsigned char *reply; int rc; - if (!us || !info) + if (!info) return USB_STOR_TRANSPORT_ERROR; if (info->lun == -1) { diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c index 1c69420e3acf..6168596c5ac6 100644 --- a/drivers/usb/storage/jumpshot.c +++ b/drivers/usb/storage/jumpshot.c @@ -335,7 +335,7 @@ static int jumpshot_id_device(struct us_data *us, unsigned char *reply; int rc; - if (!us || !info) + if (!info) return USB_STOR_TRANSPORT_ERROR; command[0] = 0xE0; |