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wl12xx: add dynamic_ps_timeout debugfs file

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Enable read/write of dynamic_ps_timeout which controls the timeout
of the dynamic PS implemented in the FW.
dynamic_ps_timeout is the timeout (in msec) until going back to PS
when there's no Rx/Tx

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 2012-01-31 11:57:22 +02:00 committed by Luciano Coelho
parent f1d63a5963
commit 1faff895df
1 changed files with 67 additions and 0 deletions
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67
drivers/net/wireless/wl12xx/debugfs.c
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@ -312,6 +312,72 @@ static const struct file_operations start_recovery_ops = {
.llseek = default_llseek,
};
static ssize_t dynamic_ps_timeout_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.dynamic_ps_timeout);
}
static ssize_t dynamic_ps_timeout_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;
ret = kstrtoul_from_user(user_buf, count, 10, &value);
if (ret < 0) {
wl1271_warning("illegal value in dynamic_ps");
return -EINVAL;
}
if (value < 1 || value > 65535) {
wl1271_warning("dyanmic_ps_timeout is not in valid range");
return -ERANGE;
}
mutex_lock(&wl->mutex);
wl->conf.conn.dynamic_ps_timeout = 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 set new timeout
* immediately without waiting for re-association
*/
wl12xx_for_each_wlvif_sta(wl, wlvif) {
if (test_bit(WLVIF_FLAG_PSM, &wlvif->flags))
wl1271_ps_set_mode(wl, wlvif, STATION_AUTO_PS_MODE,
wlvif->basic_rate, true);
}
wl1271_ps_elp_sleep(wl);
out:
mutex_unlock(&wl->mutex);
return count;
}
static const struct file_operations dynamic_ps_timeout_ops = {
.read = dynamic_ps_timeout_read,
.write = dynamic_ps_timeout_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)
{
@ -887,6 +953,7 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl,
DEBUGFS_ADD(dtim_interval, rootdir);
DEBUGFS_ADD(beacon_interval, rootdir);
DEBUGFS_ADD(beacon_filtering, rootdir);
DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
streaming = debugfs_create_dir("rx_streaming", rootdir);
if (!streaming || IS_ERR(streaming))