diff options
author | Eyal Shapira <eyal@wizery.com> | 2012-01-31 11:57:22 +0200 |
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committer | Luciano Coelho <coelho@ti.com> | 2012-02-15 08:38:31 +0200 |
commit | 1faff895df6a5213ee16a241951dc79c7ec5b5cb (patch) | |
tree | 1abd0438084cc7493f6a28f68491aa370193c86c /drivers/net/wireless/wl12xx/debugfs.c | |
parent | f1d63a59635feef3481ed1972a883a5d6be7f9bb (diff) | |
download | op-kernel-dev-1faff895df6a5213ee16a241951dc79c7ec5b5cb.zip op-kernel-dev-1faff895df6a5213ee16a241951dc79c7ec5b5cb.tar.gz |
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>
Diffstat (limited to 'drivers/net/wireless/wl12xx/debugfs.c')
-rw-r--r-- | drivers/net/wireless/wl12xx/debugfs.c | 67 |
1 files changed, 67 insertions, 0 deletions
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 @@ 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)) |