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wl12xx: add forced_ps debugfs file 

Added control over forced_ps option through debugfs.
This can be either 1 or 0.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Eyal Shapira 2012-02-02 12:03:42 +02:00 committed by Luciano Coelho
parent 5c0dc2fcfe
commit 20ae7e5e4b
1 changed files with 70 additions and 0 deletions
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70
drivers/net/wireless/wl12xx/debugfs.c
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@ -376,6 +376,75 @@ static const struct file_operations dynamic_ps_timeout_ops = {
.llseek = default_llseek,
};
static ssize_t forced_ps_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wl1271 *wl = file->private_data;
return wl1271_format_buffer(user_buf, count,
ppos, "%d\n",
wl->conf.conn.forced_ps);
}
static ssize_t forced_ps_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wl1271 *wl = file->private_data;
struct wl12xx_vif *wlvif;
unsigned long value;
int ret, ps_mode;
ret = kstrtoul_from_user(user_buf, count, 10, &value);
if (ret < 0) {
wl1271_warning("illegal value in forced_ps");
return -EINVAL;
}
if (value != 1 && value != 0) {
wl1271_warning("forced_ps should be either 0 or 1");
return -ERANGE;
}
mutex_lock(&wl->mutex);
if (wl->conf.conn.forced_ps == value)
goto out;
wl->conf.conn.forced_ps = value;
if (wl->state == WL1271_STATE_OFF)
goto out;
ret = wl1271_ps_elp_wakeup(wl);
if (ret < 0)
goto out;
/* In case we're already in PSM, trigger it again to switch mode
* immediately without waiting for re-association
*/
ps_mode = value ? STATION_POWER_SAVE_MODE : STATION_AUTO_PS_MODE;
wl12xx_for_each_wlvif_sta(wl, wlvif) {
if (test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags))
wl1271_ps_set_mode(wl, wlvif, ps_mode);
}
wl1271_ps_elp_sleep(wl);
out:
mutex_unlock(&wl->mutex);
return count;
}
static const struct file_operations forced_ps_ops = {
.read = forced_ps_read,
.write = forced_ps_write,
.open = wl1271_open_file_generic,
.llseek = default_llseek,
};
static ssize_t driver_state_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
@ -1011,6 +1080,7 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl,
DEBUGFS_ADD(beacon_interval, rootdir);
DEBUGFS_ADD(beacon_filtering, rootdir);
DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
DEBUGFS_ADD(forced_ps, rootdir);
streaming = debugfs_create_dir("rx_streaming", rootdir);
if (!streaming || IS_ERR(streaming))