Commit 1faff895 authored by Eyal Shapira's avatar Eyal Shapira Committed by Luciano Coelho
Browse files

wl12xx: add dynamic_ps_timeout debugfs file 



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: default avatarEyal Shapira <eyal@wizery.com>
Signed-off-by: default avatarEliad Peller <eliad@wizery.com>
Signed-off-by: default avatarLuciano Coelho <coelho@ti.com>
parent f1d63a59

drivers/net/wireless/wl12xx/debugfs.c

+67 −0
Original line number Diff line number Diff line
@@ -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))

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