This adds a debugfs file to dump all microcode registers.
Note that the dumping is racy, as microcode continues to run
while we loop over each register to dump it.
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Cc: Larry Finger <larry.finger@xxxxxxxxxxxx>
Signed-off-by: Michael Buesch <mb@xxxxxxxxx>
Index: wireless-dev/drivers/net/wireless/b43/debugfs.c
===================================================================
--- wireless-dev.orig/drivers/net/wireless/b43/debugfs.c 2007-08-31 16:51:12.000000000 +0200
+++ wireless-dev/drivers/net/wireless/b43/debugfs.c 2007-08-31 17:39:23.000000000 +0200
@@ -148,6 +148,39 @@ static ssize_t tsf_write_file(struct fil
return res;
}
+static ssize_t ucode_regs_read_file(struct file *file, char __user * userbuf,
+ size_t count, loff_t * ppos)
+{
+ struct b43_wldev *dev = file->private_data;
+ const size_t len = ARRAY_SIZE(big_buffer);
+ char *buf = big_buffer;
+ size_t pos = 0;
+ ssize_t res;
+ unsigned long flags;
+ int i;
+
+ mutex_lock(&big_buffer_mutex);
+ mutex_lock(&dev->wl->mutex);
+ spin_lock_irqsave(&dev->wl->irq_lock, flags);
+ if (b43_status(dev) < B43_STAT_INITIALIZED) {
+ fappend("Board not initialized.\n");
+ goto out;
+ }
+
+ for (i = 0; i < 64; i++) {
+ fappend("r%d = 0x%04x\n", i,
+ b43_shm_read16(dev, B43_SHM_SCRATCH, i));
+ }
+
+out:
+ spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
+ mutex_unlock(&dev->wl->mutex);
+ res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+ mutex_unlock(&big_buffer_mutex);
+
+ return res;
+}
+
static ssize_t txstat_read_file(struct file *file, char __user * userbuf,
size_t count, loff_t * ppos)
{
@@ -470,6 +503,11 @@ static struct file_operations tsf_fops =
.open = open_file_generic,
};
+static struct file_operations ucode_regs_fops = {
+ .read = ucode_regs_read_file,
+ .open = open_file_generic,
+};
+
static struct file_operations txstat_fops = {
.read = txstat_read_file,
.write = write_file_dummy,
@@ -575,6 +613,10 @@ void b43_debugfs_add_device(struct b43_w
dev, &tsf_fops);
if (IS_ERR(e->dentry_tsf))
e->dentry_tsf = NULL;
+ e->dentry_ucode_regs = debugfs_create_file("ucode_regs", 0400, e->subdir,
+ dev, &ucode_regs_fops);
+ if (IS_ERR(e->dentry_ucode_regs))
+ e->dentry_ucode_regs = NULL;
e->dentry_txstat = debugfs_create_file("tx_status", 0400, e->subdir,
dev, &txstat_fops);
if (IS_ERR(e->dentry_txstat))
@@ -607,6 +649,7 @@ void b43_debugfs_remove_device(struct b4
b43_remove_dynamic_debug(dev);
debugfs_remove(e->dentry_loctls);
debugfs_remove(e->dentry_tsf);
+ debugfs_remove(e->dentry_ucode_regs);
debugfs_remove(e->dentry_txstat);
debugfs_remove(e->dentry_restart);
debugfs_remove(e->dentry_txpower_g);
Index: wireless-dev/drivers/net/wireless/b43/debugfs.h
===================================================================
--- wireless-dev.orig/drivers/net/wireless/b43/debugfs.h 2007-08-31 16:51:12.000000000 +0200
+++ wireless-dev/drivers/net/wireless/b43/debugfs.h 2007-08-31 17:39:23.000000000 +0200
@@ -31,6 +31,7 @@ struct b43_txstatus_log {
struct b43_dfsentry {
struct dentry *subdir;
struct dentry *dentry_tsf;
+ struct dentry *dentry_ucode_regs;
struct dentry *dentry_txstat;
struct dentry *dentry_txpower_g;
struct dentry *dentry_restart;
-
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
