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path: root/drivers/net/wireless/b43/debugfs.c
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Diffstat (limited to 'drivers/net/wireless/b43/debugfs.c')
-rw-r--r--drivers/net/wireless/b43/debugfs.c131
1 files changed, 39 insertions, 92 deletions
diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c
index e04fc91f569..e807bd93064 100644
--- a/drivers/net/wireless/b43/debugfs.c
+++ b/drivers/net/wireless/b43/debugfs.c
@@ -4,7 +4,7 @@
debugfs driver debugging code
- Copyright (c) 2005-2007 Michael Buesch <mb@bu3sch.de>
+ Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
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
@@ -46,13 +46,11 @@ struct b43_debugfs_fops {
struct file_operations fops;
/* Offset of struct b43_dfs_file in struct b43_dfsentry */
size_t file_struct_offset;
- /* Take wl->irq_lock before calling read/write? */
- bool take_irqlock;
};
static inline
-struct b43_dfs_file * fops_to_dfs_file(struct b43_wldev *dev,
- const struct b43_debugfs_fops *dfops)
+struct b43_dfs_file *fops_to_dfs_file(struct b43_wldev *dev,
+ const struct b43_debugfs_fops *dfops)
{
void *p;
@@ -127,7 +125,6 @@ static int shm16write__write_file(struct b43_wldev *dev,
unsigned int routing, addr, mask, set;
u16 val;
int res;
- unsigned long flags;
res = sscanf(buf, "0x%X 0x%X 0x%X 0x%X",
&routing, &addr, &mask, &set);
@@ -144,15 +141,13 @@ static int shm16write__write_file(struct b43_wldev *dev,
if ((mask > 0xFFFF) || (set > 0xFFFF))
return -E2BIG;
- spin_lock_irqsave(&dev->wl->shm_lock, flags);
if (mask == 0)
val = 0;
else
- val = __b43_shm_read16(dev, routing, addr);
+ val = b43_shm_read16(dev, routing, addr);
val &= mask;
val |= set;
- __b43_shm_write16(dev, routing, addr, val);
- spin_unlock_irqrestore(&dev->wl->shm_lock, flags);
+ b43_shm_write16(dev, routing, addr, val);
return 0;
}
@@ -206,7 +201,6 @@ static int shm32write__write_file(struct b43_wldev *dev,
unsigned int routing, addr, mask, set;
u32 val;
int res;
- unsigned long flags;
res = sscanf(buf, "0x%X 0x%X 0x%X 0x%X",
&routing, &addr, &mask, &set);
@@ -223,15 +217,13 @@ static int shm32write__write_file(struct b43_wldev *dev,
if ((mask > 0xFFFFFFFF) || (set > 0xFFFFFFFF))
return -E2BIG;
- spin_lock_irqsave(&dev->wl->shm_lock, flags);
if (mask == 0)
val = 0;
else
- val = __b43_shm_read32(dev, routing, addr);
+ val = b43_shm_read32(dev, routing, addr);
val &= mask;
val |= set;
- __b43_shm_write32(dev, routing, addr, val);
- spin_unlock_irqrestore(&dev->wl->shm_lock, flags);
+ b43_shm_write32(dev, routing, addr, val);
return 0;
}
@@ -367,47 +359,17 @@ static int mmio32write__write_file(struct b43_wldev *dev,
return 0;
}
-/* wl->irq_lock is locked */
-static ssize_t tsf_read_file(struct b43_wldev *dev,
- char *buf, size_t bufsize)
-{
- ssize_t count = 0;
- u64 tsf;
-
- b43_tsf_read(dev, &tsf);
- fappend("0x%08x%08x\n",
- (unsigned int)((tsf & 0xFFFFFFFF00000000ULL) >> 32),
- (unsigned int)(tsf & 0xFFFFFFFFULL));
-
- return count;
-}
-
-/* wl->irq_lock is locked */
-static int tsf_write_file(struct b43_wldev *dev,
- const char *buf, size_t count)
-{
- u64 tsf;
-
- if (sscanf(buf, "%llu", (unsigned long long *)(&tsf)) != 1)
- return -EINVAL;
- b43_tsf_write(dev, tsf);
-
- return 0;
-}
-
static ssize_t txstat_read_file(struct b43_wldev *dev,
char *buf, size_t bufsize)
{
struct b43_txstatus_log *log = &dev->dfsentry->txstatlog;
ssize_t count = 0;
- unsigned long flags;
int i, idx;
struct b43_txstatus *stat;
- spin_lock_irqsave(&log->lock, flags);
if (log->end < 0) {
fappend("Nothing transmitted, yet\n");
- goto out_unlock;
+ goto out;
}
fappend("b43 TX status reports:\n\n"
"index | cookie | seq | phy_stat | frame_count | "
@@ -437,13 +399,11 @@ static ssize_t txstat_read_file(struct b43_wldev *dev,
break;
i++;
}
-out_unlock:
- spin_unlock_irqrestore(&log->lock, flags);
+out:
return count;
}
-/* wl->irq_lock is locked */
static int restart_write_file(struct b43_wldev *dev,
const char *buf, size_t count)
{
@@ -540,12 +500,6 @@ out:
#undef fappend
-static int b43_debugfs_open(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
@@ -584,12 +538,7 @@ static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf,
goto out_unlock;
}
memset(buf, 0, bufsize);
- if (dfops->take_irqlock) {
- spin_lock_irq(&dev->wl->irq_lock);
- ret = dfops->read(dev, buf, bufsize);
- spin_unlock_irq(&dev->wl->irq_lock);
- } else
- ret = dfops->read(dev, buf, bufsize);
+ ret = dfops->read(dev, buf, bufsize);
if (ret <= 0) {
free_pages((unsigned long)buf, buforder);
err = ret;
@@ -651,12 +600,7 @@ static ssize_t b43_debugfs_write(struct file *file,
err = -EFAULT;
goto out_freepage;
}
- if (dfops->take_irqlock) {
- spin_lock_irq(&dev->wl->irq_lock);
- err = dfops->write(dev, buf, count);
- spin_unlock_irq(&dev->wl->irq_lock);
- } else
- err = dfops->write(dev, buf, count);
+ err = dfops->write(dev, buf, count);
if (err)
goto out_freepage;
@@ -669,37 +613,45 @@ out_unlock:
}
-#define B43_DEBUGFS_FOPS(name, _read, _write, _take_irqlock) \
+#define B43_DEBUGFS_FOPS(name, _read, _write) \
static struct b43_debugfs_fops fops_##name = { \
.read = _read, \
.write = _write, \
.fops = { \
- .open = b43_debugfs_open, \
+ .open = simple_open, \
.read = b43_debugfs_read, \
.write = b43_debugfs_write, \
+ .llseek = generic_file_llseek, \
}, \
.file_struct_offset = offsetof(struct b43_dfsentry, \
file_##name), \
- .take_irqlock = _take_irqlock, \
}
-B43_DEBUGFS_FOPS(shm16read, shm16read__read_file, shm16read__write_file, 1);
-B43_DEBUGFS_FOPS(shm16write, NULL, shm16write__write_file, 1);
-B43_DEBUGFS_FOPS(shm32read, shm32read__read_file, shm32read__write_file, 1);
-B43_DEBUGFS_FOPS(shm32write, NULL, shm32write__write_file, 1);
-B43_DEBUGFS_FOPS(mmio16read, mmio16read__read_file, mmio16read__write_file, 1);
-B43_DEBUGFS_FOPS(mmio16write, NULL, mmio16write__write_file, 1);
-B43_DEBUGFS_FOPS(mmio32read, mmio32read__read_file, mmio32read__write_file, 1);
-B43_DEBUGFS_FOPS(mmio32write, NULL, mmio32write__write_file, 1);
-B43_DEBUGFS_FOPS(tsf, tsf_read_file, tsf_write_file, 1);
-B43_DEBUGFS_FOPS(txstat, txstat_read_file, NULL, 0);
-B43_DEBUGFS_FOPS(restart, NULL, restart_write_file, 1);
-B43_DEBUGFS_FOPS(loctls, loctls_read_file, NULL, 0);
-
-
-int b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature)
+B43_DEBUGFS_FOPS(shm16read, shm16read__read_file, shm16read__write_file);
+B43_DEBUGFS_FOPS(shm16write, NULL, shm16write__write_file);
+B43_DEBUGFS_FOPS(shm32read, shm32read__read_file, shm32read__write_file);
+B43_DEBUGFS_FOPS(shm32write, NULL, shm32write__write_file);
+B43_DEBUGFS_FOPS(mmio16read, mmio16read__read_file, mmio16read__write_file);
+B43_DEBUGFS_FOPS(mmio16write, NULL, mmio16write__write_file);
+B43_DEBUGFS_FOPS(mmio32read, mmio32read__read_file, mmio32read__write_file);
+B43_DEBUGFS_FOPS(mmio32write, NULL, mmio32write__write_file);
+B43_DEBUGFS_FOPS(txstat, txstat_read_file, NULL);
+B43_DEBUGFS_FOPS(restart, NULL, restart_write_file);
+B43_DEBUGFS_FOPS(loctls, loctls_read_file, NULL);
+
+
+bool b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature)
{
- return !!(dev->dfsentry && dev->dfsentry->dyn_debug[feature]);
+ bool enabled;
+
+ enabled = (dev->dfsentry && dev->dfsentry->dyn_debug[feature]);
+ if (unlikely(enabled)) {
+ /* Force full debugging messages, if the user enabled
+ * some dynamic debugging feature. */
+ b43_modparam_verbose = B43_VERBOSITY_MAX;
+ }
+
+ return enabled;
}
static void b43_remove_dynamic_debug(struct b43_wldev *dev)
@@ -732,6 +684,7 @@ static void b43_add_dynamic_debug(struct b43_wldev *dev)
add_dyn_dbg("debug_lo", B43_DBG_LO, 0);
add_dyn_dbg("debug_firmware", B43_DBG_FIRMWARE, 0);
add_dyn_dbg("debug_keys", B43_DBG_KEYS, 0);
+ add_dyn_dbg("debug_verbose_stats", B43_DBG_VERBOSESTATS, 0);
#undef add_dyn_dbg
}
@@ -758,7 +711,6 @@ void b43_debugfs_add_device(struct b43_wldev *dev)
return;
}
log->end = -1;
- spin_lock_init(&log->lock);
dev->dfsentry = e;
@@ -805,7 +757,6 @@ void b43_debugfs_add_device(struct b43_wldev *dev)
ADD_FILE(mmio16write, 0200);
ADD_FILE(mmio32read, 0600);
ADD_FILE(mmio32write, 0200);
- ADD_FILE(tsf, 0600);
ADD_FILE(txstat, 0400);
ADD_FILE(restart, 0200);
ADD_FILE(loctls, 0400);
@@ -834,7 +785,6 @@ void b43_debugfs_remove_device(struct b43_wldev *dev)
debugfs_remove(e->file_mmio16write.dentry);
debugfs_remove(e->file_mmio32read.dentry);
debugfs_remove(e->file_mmio32write.dentry);
- debugfs_remove(e->file_tsf.dentry);
debugfs_remove(e->file_txstat.dentry);
debugfs_remove(e->file_restart.dentry);
debugfs_remove(e->file_loctls.dentry);
@@ -844,7 +794,6 @@ void b43_debugfs_remove_device(struct b43_wldev *dev)
kfree(e);
}
-/* Called with IRQs disabled. */
void b43_debugfs_log_txstat(struct b43_wldev *dev,
const struct b43_txstatus *status)
{
@@ -856,14 +805,12 @@ void b43_debugfs_log_txstat(struct b43_wldev *dev,
if (!e)
return;
log = &e->txstatlog;
- spin_lock(&log->lock); /* IRQs are already disabled. */
i = log->end + 1;
if (i == B43_NR_LOGGED_TXSTATUS)
i = 0;
log->end = i;
cur = &(log->log[i]);
memcpy(cur, status, sizeof(*cur));
- spin_unlock(&log->lock);
}
void b43_debugfs_init(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 13:15:01 +0000