From: Eyal Shapira <eyal@xxxxxxxxxx>
Added control over forced_ps option through debugfs.
This can be either 1 or 0.
Signed-off-by: Eyal Shapira <eyal@xxxxxxxxxx>
Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
---
drivers/net/wireless/wl12xx/debugfs.c | 70 +++++++++++++++++++++++++++++++++
1 files changed, 70 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c
index 02da445..1c26238 100644
--- a/drivers/net/wireless/wl12xx/debugfs.c
+++ b/drivers/net/wireless/wl12xx/debugfs.c
@@ -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))
--
1.7.6.401.g6a319
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