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-rw-r--r--drivers/usb/early/ehci-dbgp.c120
-rw-r--r--drivers/usb/gadget/at91_udc.c9
-rw-r--r--drivers/usb/gadget/r8a66597-udc.c1
-rw-r--r--drivers/usb/host/sl811_cs.c28
-rw-r--r--drivers/usb/musb/musb_debugfs.c1
-rw-r--r--drivers/usb/wusbcore/wa-xfer.c2
6 files changed, 128 insertions, 33 deletions
diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index 6e98a3697844..94ecdbc758ce 100644
--- a/drivers/usb/early/ehci-dbgp.c
+++ b/drivers/usb/early/ehci-dbgp.c
@@ -19,6 +19,9 @@
#include <linux/usb/ch9.h>
#include <linux/usb/ehci_def.h>
#include <linux/delay.h>
+#include <linux/serial_core.h>
+#include <linux/kgdb.h>
+#include <linux/kthread.h>
#include <asm/io.h>
#include <asm/pci-direct.h>
#include <asm/fixmap.h>
@@ -55,6 +58,7 @@ static struct ehci_regs __iomem *ehci_regs;
static struct ehci_dbg_port __iomem *ehci_debug;
static int dbgp_not_safe; /* Cannot use debug device during ehci reset */
static unsigned int dbgp_endpoint_out;
+static unsigned int dbgp_endpoint_in;
struct ehci_dev {
u32 bus;
@@ -91,6 +95,13 @@ static inline u32 dbgp_len_update(u32 x, u32 len)
return (x & ~0x0f) | (len & 0x0f);
}
+#ifdef CONFIG_KGDB
+static struct kgdb_io kgdbdbgp_io_ops;
+#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops)
+#else
+#define dbgp_kgdb_mode (0)
+#endif
+
/*
* USB Packet IDs (PIDs)
*/
@@ -182,11 +193,10 @@ static void dbgp_breath(void)
/* Sleep to give the debug port a chance to breathe */
}
-static int dbgp_wait_until_done(unsigned ctrl)
+static int dbgp_wait_until_done(unsigned ctrl, int loop)
{
u32 pids, lpid;
int ret;
- int loop = DBGP_LOOPS;
retry:
writel(ctrl | DBGP_GO, &ehci_debug->control);
@@ -276,13 +286,13 @@ static int dbgp_bulk_write(unsigned devnum, unsigned endpoint,
dbgp_set_data(bytes, size);
writel(addr, &ehci_debug->address);
writel(pids, &ehci_debug->pids);
- ret = dbgp_wait_until_done(ctrl);
+ ret = dbgp_wait_until_done(ctrl, DBGP_LOOPS);
return ret;
}
static int dbgp_bulk_read(unsigned devnum, unsigned endpoint, void *data,
- int size)
+ int size, int loops)
{
u32 pids, addr, ctrl;
int ret;
@@ -302,7 +312,7 @@ static int dbgp_bulk_read(unsigned devnum, unsigned endpoint, void *data,
writel(addr, &ehci_debug->address);
writel(pids, &ehci_debug->pids);
- ret = dbgp_wait_until_done(ctrl);
+ ret = dbgp_wait_until_done(ctrl, loops);
if (ret < 0)
return ret;
@@ -343,12 +353,12 @@ static int dbgp_control_msg(unsigned devnum, int requesttype,
dbgp_set_data(&req, sizeof(req));
writel(addr, &ehci_debug->address);
writel(pids, &ehci_debug->pids);
- ret = dbgp_wait_until_done(ctrl);
+ ret = dbgp_wait_until_done(ctrl, DBGP_LOOPS);
if (ret < 0)
return ret;
/* Read the result */
- return dbgp_bulk_read(devnum, 0, data, size);
+ return dbgp_bulk_read(devnum, 0, data, size, DBGP_LOOPS);
}
/* Find a PCI capability */
@@ -559,6 +569,7 @@ try_again:
goto err;
}
dbgp_endpoint_out = dbgp_desc.bDebugOutEndpoint;
+ dbgp_endpoint_in = dbgp_desc.bDebugInEndpoint;
/* Move the device to 127 if it isn't already there */
if (devnum != USB_DEBUG_DEVNUM) {
@@ -968,8 +979,9 @@ int dbgp_reset_prep(void)
if (!ehci_debug)
return 0;
- if (early_dbgp_console.index != -1 &&
- !(early_dbgp_console.flags & CON_BOOT))
+ if ((early_dbgp_console.index != -1 &&
+ !(early_dbgp_console.flags & CON_BOOT)) ||
+ dbgp_kgdb_mode)
return 1;
/* This means the console is not initialized, or should get
* shutdown so as to allow for reuse of the usb device, which
@@ -982,3 +994,93 @@ int dbgp_reset_prep(void)
return 0;
}
EXPORT_SYMBOL_GPL(dbgp_reset_prep);
+
+#ifdef CONFIG_KGDB
+
+static char kgdbdbgp_buf[DBGP_MAX_PACKET];
+static int kgdbdbgp_buf_sz;
+static int kgdbdbgp_buf_idx;
+static int kgdbdbgp_loop_cnt = DBGP_LOOPS;
+
+static int kgdbdbgp_read_char(void)
+{
+ int ret;
+
+ if (kgdbdbgp_buf_idx < kgdbdbgp_buf_sz) {
+ char ch = kgdbdbgp_buf[kgdbdbgp_buf_idx++];
+ return ch;
+ }
+
+ ret = dbgp_bulk_read(USB_DEBUG_DEVNUM, dbgp_endpoint_in,
+ &kgdbdbgp_buf, DBGP_MAX_PACKET,
+ kgdbdbgp_loop_cnt);
+ if (ret <= 0)
+ return NO_POLL_CHAR;
+ kgdbdbgp_buf_sz = ret;
+ kgdbdbgp_buf_idx = 1;
+ return kgdbdbgp_buf[0];
+}
+
+static void kgdbdbgp_write_char(u8 chr)
+{
+ early_dbgp_write(NULL, &chr, 1);
+}
+
+static struct kgdb_io kgdbdbgp_io_ops = {
+ .name = "kgdbdbgp",
+ .read_char = kgdbdbgp_read_char,
+ .write_char = kgdbdbgp_write_char,
+};
+
+static int kgdbdbgp_wait_time;
+
+static int __init kgdbdbgp_parse_config(char *str)
+{
+ char *ptr;
+
+ if (!ehci_debug) {
+ if (early_dbgp_init(str))
+ return -1;
+ }
+ ptr = strchr(str, ',');
+ if (ptr) {
+ ptr++;
+ kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10);
+ }
+ kgdb_register_io_module(&kgdbdbgp_io_ops);
+ kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1;
+
+ return 0;
+}
+early_param("kgdbdbgp", kgdbdbgp_parse_config);
+
+static int kgdbdbgp_reader_thread(void *ptr)
+{
+ int ret;
+
+ while (readl(&ehci_debug->control) & DBGP_ENABLED) {
+ kgdbdbgp_loop_cnt = 1;
+ ret = kgdbdbgp_read_char();
+ kgdbdbgp_loop_cnt = DBGP_LOOPS;
+ if (ret != NO_POLL_CHAR) {
+ if (ret == 0x3 || ret == '$') {
+ if (ret == '$')
+ kgdbdbgp_buf_idx--;
+ kgdb_breakpoint();
+ }
+ continue;
+ }
+ schedule_timeout_interruptible(kgdbdbgp_wait_time * HZ);
+ }
+ return 0;
+}
+
+static int __init kgdbdbgp_start_thread(void)
+{
+ if (dbgp_kgdb_mode && kgdbdbgp_wait_time)
+ kthread_run(kgdbdbgp_reader_thread, NULL, "%s", "dbgp");
+
+ return 0;
+}
+module_init(kgdbdbgp_start_thread);
+#endif /* CONFIG_KGDB */
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 12ac9cd32a07..df1bae9b048e 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -1370,6 +1370,12 @@ static irqreturn_t at91_udc_irq (int irq, void *_udc)
{
struct at91_udc *udc = _udc;
u32 rescans = 5;
+ int disable_clock = 0;
+
+ if (!udc->clocked) {
+ clk_on(udc);
+ disable_clock = 1;
+ }
while (rescans--) {
u32 status;
@@ -1458,6 +1464,9 @@ static irqreturn_t at91_udc_irq (int irq, void *_udc)
}
}
+ if (disable_clock)
+ clk_off(udc);
+
return IRQ_HANDLED;
}
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 5e13d23b5f0c..8b45145b9136 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -23,7 +23,6 @@
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
-#include <linux/err.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 39d253e841f6..58cb73c8420a 100644
--- a/drivers/usb/host/sl811_cs.c
+++ b/drivers/usb/host/sl811_cs.c
@@ -47,7 +47,6 @@ static const char driver_name[DEV_NAME_LEN] = "sl811_cs";
typedef struct local_info_t {
struct pcmcia_device *p_dev;
- dev_node_t node;
} local_info_t;
static void sl811_cs_release(struct pcmcia_device * link);
@@ -163,8 +162,7 @@ static int sl811_cs_config_check(struct pcmcia_device *p_dev,
dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
/* we need an interrupt */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -186,7 +184,6 @@ static int sl811_cs_config_check(struct pcmcia_device *p_dev,
static int sl811_cs_config(struct pcmcia_device *link)
{
struct device *parent = &link->dev;
- local_info_t *dev = link->priv;
int ret;
dev_dbg(&link->dev, "sl811_cs_config\n");
@@ -197,31 +194,24 @@ static int sl811_cs_config(struct pcmcia_device *link)
/* require an IRQ and two registers */
if (!link->io.NumPorts1 || link->io.NumPorts1 < 2)
goto failed;
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- } else
+
+ if (!link->irq)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
goto failed;
- sprintf(dev->node.dev_name, driver_name);
- dev->node.major = dev->node.minor = 0;
- link->dev_node = &dev->node;
-
- printk(KERN_INFO "%s: index 0x%02x: ",
- dev->node.dev_name, link->conf.ConfigIndex);
+ dev_info(&link->dev, "index 0x%02x: ",
+ link->conf.ConfigIndex);
if (link->conf.Vpp)
printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1+link->io.NumPorts1-1);
printk("\n");
- if (sl811_hc_init(parent, link->io.BasePort1, link->irq.AssignedIRQ)
+ if (sl811_hc_init(parent, link->io.BasePort1, link->irq)
< 0) {
failed:
printk(KERN_WARNING "sl811_cs_config failed\n");
@@ -241,10 +231,6 @@ static int sl811_cs_probe(struct pcmcia_device *link)
local->p_dev = link;
link->priv = local;
- /* Initialize */
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- link->irq.Handler = NULL;
-
link->conf.Attributes = 0;
link->conf.IntType = INT_MEMORY_AND_IO;
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index b6a27bab223a..3310b52f4356 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -34,7 +34,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
-#include <linux/slab.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/kobject.h>
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 0f1595187ddb..de1648317875 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -76,7 +76,7 @@
* xfers-per-ripe, blocks-per-rpipe, rpipes-per-host), at the end
* we are going to have to rebuild all this based on an scheduler,
* to where we have a list of transactions to do and based on the
- * availability of the different requried components (blocks,
+ * availability of the different required components (blocks,
* rpipes, segment slots, etc), we go scheduling them. Painful.
*/
#include <linux/init.h>
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-12 09:33:07 +0000