Return-path: Received: from mail-wi0-f174.google.com ([209.85.212.174]:47536 "EHLO mail-wi0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752694Ab2A3L5x (ORCPT ); Mon, 30 Jan 2012 06:57:53 -0500 Received: by mail-wi0-f174.google.com with SMTP id s10so3321396wic.19 for ; Mon, 30 Jan 2012 03:57:52 -0800 (PST) From: Eliad Peller To: Luciano Coelho Cc: Subject: [PATCH 09/12] wl12xx: add dynamic_ps_timeout debugfs file Date: Mon, 30 Jan 2012 14:00:54 +0200 Message-Id: <1327924857-1250-10-git-send-email-eliad@wizery.com> (sfid-20120130_125757_619492_D807CB9D) In-Reply-To: <1327924857-1250-1-git-send-email-eliad@wizery.com> References: <1327924857-1250-1-git-send-email-eliad@wizery.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Eyal Shapira 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 Signed-off-by: Eliad Peller --- 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 5e96e05..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)) -- 1.7.6.401.g6a319