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: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c
index 5e96e059..156a774 100644
--- a/drivers/net/wireless/wl12xx/debugfs.c
+++ b/drivers/net/wireless/wl12xx/debugfs.c
@@ -312,6 +312,72 @@
.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 @@
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))