diff options
Diffstat (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c')
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c | 80 |
1 files changed, 68 insertions, 12 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c index ce2e40b29b4f..923275ea0789 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c @@ -77,7 +77,8 @@ static ssize_t devinfo_read_file(struct file *file, char __user *userbuf, down(&big_buffer_sem); - bcm43xx_lock_irqsafe(bcm, flags); + mutex_lock(&bcm->mutex); + spin_lock_irqsave(&bcm->irq_lock, flags); if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED) { fappend("Board not initialized.\n"); goto out; @@ -121,7 +122,8 @@ static ssize_t devinfo_read_file(struct file *file, char __user *userbuf, fappend("\n"); out: - bcm43xx_unlock_irqsafe(bcm, flags); + spin_unlock_irqrestore(&bcm->irq_lock, flags); + mutex_unlock(&bcm->mutex); res = simple_read_from_buffer(userbuf, count, ppos, buf, pos); up(&big_buffer_sem); return res; @@ -159,7 +161,8 @@ static ssize_t spromdump_read_file(struct file *file, char __user *userbuf, unsigned long flags; down(&big_buffer_sem); - bcm43xx_lock_irqsafe(bcm, flags); + mutex_lock(&bcm->mutex); + spin_lock_irqsave(&bcm->irq_lock, flags); if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED) { fappend("Board not initialized.\n"); goto out; @@ -169,7 +172,8 @@ static ssize_t spromdump_read_file(struct file *file, char __user *userbuf, fappend("boardflags: 0x%04x\n", bcm->sprom.boardflags); out: - bcm43xx_unlock_irqsafe(bcm, flags); + spin_unlock_irqrestore(&bcm->irq_lock, flags); + mutex_unlock(&bcm->mutex); res = simple_read_from_buffer(userbuf, count, ppos, buf, pos); up(&big_buffer_sem); return res; @@ -188,7 +192,8 @@ static ssize_t tsf_read_file(struct file *file, char __user *userbuf, u64 tsf; down(&big_buffer_sem); - bcm43xx_lock_irqsafe(bcm, flags); + mutex_lock(&bcm->mutex); + spin_lock_irqsave(&bcm->irq_lock, flags); if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED) { fappend("Board not initialized.\n"); goto out; @@ -199,7 +204,8 @@ static ssize_t tsf_read_file(struct file *file, char __user *userbuf, (unsigned int)(tsf & 0xFFFFFFFFULL)); out: - bcm43xx_unlock_irqsafe(bcm, flags); + spin_unlock_irqrestore(&bcm->irq_lock, flags); + mutex_unlock(&bcm->mutex); res = simple_read_from_buffer(userbuf, count, ppos, buf, pos); up(&big_buffer_sem); return res; @@ -221,7 +227,8 @@ static ssize_t tsf_write_file(struct file *file, const char __user *user_buf, res = -EFAULT; goto out_up; } - bcm43xx_lock_irqsafe(bcm, flags); + mutex_lock(&bcm->mutex); + spin_lock_irqsave(&bcm->irq_lock, flags); if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED) { printk(KERN_INFO PFX "debugfs: Board not initialized.\n"); res = -EFAULT; @@ -237,7 +244,8 @@ static ssize_t tsf_write_file(struct file *file, const char __user *user_buf, res = buf_size; out_unlock: - bcm43xx_unlock_irqsafe(bcm, flags); + spin_unlock_irqrestore(&bcm->irq_lock, flags); + mutex_unlock(&bcm->mutex); out_up: up(&big_buffer_sem); return res; @@ -258,7 +266,8 @@ static ssize_t txstat_read_file(struct file *file, char __user *userbuf, int i, cnt, j = 0; down(&big_buffer_sem); - bcm43xx_lock_irqsafe(bcm, flags); + mutex_lock(&bcm->mutex); + spin_lock_irqsave(&bcm->irq_lock, flags); fappend("Last %d logged xmitstatus blobs (Latest first):\n\n", BCM43xx_NR_LOGGED_XMITSTATUS); @@ -294,14 +303,51 @@ static ssize_t txstat_read_file(struct file *file, char __user *userbuf, i = BCM43xx_NR_LOGGED_XMITSTATUS - 1; } - bcm43xx_unlock_irqsafe(bcm, flags); + spin_unlock_irqrestore(&bcm->irq_lock, flags); res = simple_read_from_buffer(userbuf, count, ppos, buf, pos); - bcm43xx_lock_irqsafe(bcm, flags); + spin_lock_irqsave(&bcm->irq_lock, flags); if (*ppos == pos) { /* Done. Drop the copied data. */ e->xmitstatus_printing = 0; } - bcm43xx_unlock_irqsafe(bcm, flags); + spin_unlock_irqrestore(&bcm->irq_lock, flags); + mutex_unlock(&bcm->mutex); + up(&big_buffer_sem); + return res; +} + +static ssize_t restart_write_file(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct bcm43xx_private *bcm = file->private_data; + char *buf = really_big_buffer; + ssize_t buf_size; + ssize_t res; + unsigned long flags; + + buf_size = min(count, sizeof (really_big_buffer) - 1); + down(&big_buffer_sem); + if (copy_from_user(buf, user_buf, buf_size)) { + res = -EFAULT; + goto out_up; + } + mutex_lock(&(bcm)->mutex); + spin_lock_irqsave(&(bcm)->irq_lock, flags); + if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED) { + printk(KERN_INFO PFX "debugfs: Board not initialized.\n"); + res = -EFAULT; + goto out_unlock; + } + if (count > 0 && buf[0] == '1') { + bcm43xx_controller_restart(bcm, "manually restarted"); + res = count; + } else + res = -EINVAL; + +out_unlock: + spin_unlock_irqrestore(&(bcm)->irq_lock, flags); + mutex_unlock(&(bcm)->mutex); +out_up: up(&big_buffer_sem); return res; } @@ -339,6 +385,11 @@ static struct file_operations txstat_fops = { .open = open_file_generic, }; +static struct file_operations restart_fops = { + .write = restart_write_file, + .open = open_file_generic, +}; + void bcm43xx_debugfs_add_device(struct bcm43xx_private *bcm) { @@ -390,6 +441,10 @@ void bcm43xx_debugfs_add_device(struct bcm43xx_private *bcm) bcm, &txstat_fops); if (!e->dentry_txstat) printk(KERN_ERR PFX "debugfs: creating \"tx_status\" for \"%s\" failed!\n", devdir); + e->dentry_restart = debugfs_create_file("restart", 0222, e->subdir, + bcm, &restart_fops); + if (!e->dentry_restart) + printk(KERN_ERR PFX "debugfs: creating \"restart\" for \"%s\" failed!\n", devdir); } void bcm43xx_debugfs_remove_device(struct bcm43xx_private *bcm) @@ -405,6 +460,7 @@ void bcm43xx_debugfs_remove_device(struct bcm43xx_private *bcm) debugfs_remove(e->dentry_devinfo); debugfs_remove(e->dentry_tsf); debugfs_remove(e->dentry_txstat); + debugfs_remove(e->dentry_restart); debugfs_remove(e->subdir); kfree(e->xmitstatus_buffer); kfree(e->xmitstatus_print_buffer); |