Release 4.7 drivers/net/wireless/ti/wl1251/ps.c
/*
* This file is part of wl1251
*
* Copyright (C) 2008 Nokia Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include "reg.h"
#include "ps.h"
#include "cmd.h"
#include "io.h"
/* in ms */
#define WL1251_WAKEUP_TIMEOUT 100
void wl1251_elp_work(struct work_struct *work)
{
struct delayed_work *dwork;
struct wl1251 *wl;
dwork = to_delayed_work(work);
wl = container_of(dwork, struct wl1251, elp_work);
wl1251_debug(DEBUG_PSM, "elp work");
mutex_lock(&wl->mutex);
if (wl->elp || wl->station_mode == STATION_ACTIVE_MODE)
goto out;
wl1251_debug(DEBUG_PSM, "chip to elp");
wl1251_write_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_SLEEP);
wl->elp = true;
out:
mutex_unlock(&wl->mutex);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| juuso oikarinen | juuso oikarinen | 60 | 59.41% | 1 | 16.67% |
| kalle valo | kalle valo | 36 | 35.64% | 2 | 33.33% |
| jarkko nikula | jarkko nikula | 3 | 2.97% | 1 | 16.67% |
| geliang tang | geliang tang | 1 | 0.99% | 1 | 16.67% |
| grazvydas ignotas | grazvydas ignotas | 1 | 0.99% | 1 | 16.67% |
| Total | 101 | 100.00% | 6 | 100.00% |
#define ELP_ENTRY_DELAY 5
/* Routines to toggle sleep mode while in ELP */
void wl1251_ps_elp_sleep(struct wl1251 *wl)
{
unsigned long delay;
if (wl->station_mode != STATION_ACTIVE_MODE) {
delay = msecs_to_jiffies(ELP_ENTRY_DELAY);
ieee80211_queue_delayed_work(wl->hw, &wl->elp_work, delay);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| juuso oikarinen | juuso oikarinen | 41 | 91.11% | 1 | 33.33% |
| jarkko nikula | jarkko nikula | 3 | 6.67% | 1 | 33.33% |
| kalle valo | kalle valo | 1 | 2.22% | 1 | 33.33% |
| Total | 45 | 100.00% | 3 | 100.00% |
int wl1251_ps_elp_wakeup(struct wl1251 *wl)
{
unsigned long timeout, start;
u32 elp_reg;
cancel_delayed_work(&wl->elp_work);
if (!wl->elp)
return 0;
wl1251_debug(DEBUG_PSM, "waking up chip from elp");
start = jiffies;
timeout = jiffies + msecs_to_jiffies(WL1251_WAKEUP_TIMEOUT);
wl1251_write_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_WAKE_UP);
elp_reg = wl1251_read_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR);
/*
* FIXME: we should wait for irq from chip but, as a temporary
* solution to simplify locking, let's poll instead
*/
while (!(elp_reg & ELPCTRL_WLAN_READY)) {
if (time_after(jiffies, timeout)) {
wl1251_error("elp wakeup timeout");
return -ETIMEDOUT;
}
msleep(1);
elp_reg = wl1251_read_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR);
}
wl1251_debug(DEBUG_PSM, "wakeup time: %u ms",
jiffies_to_msecs(jiffies - start));
wl->elp = false;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| kalle valo | kalle valo | 131 | 90.97% | 3 | 60.00% |
| grazvydas ignotas | grazvydas ignotas | 13 | 9.03% | 2 | 40.00% |
| Total | 144 | 100.00% | 5 | 100.00% |
int wl1251_ps_set_mode(struct wl1251 *wl, enum wl1251_station_mode mode)
{
int ret;
switch (mode) {
case STATION_POWER_SAVE_MODE:
wl1251_debug(DEBUG_PSM, "entering psm");
/* enable beacon filtering */
ret = wl1251_acx_beacon_filter_opt(wl, true);
if (ret < 0)
return ret;
ret = wl1251_acx_wake_up_conditions(wl,
WAKE_UP_EVENT_DTIM_BITMAP,
wl->listen_int);
if (ret < 0)
return ret;
ret = wl1251_acx_bet_enable(wl, WL1251_ACX_BET_ENABLE,
WL1251_DEFAULT_BET_CONSECUTIVE);
if (ret < 0)
return ret;
ret = wl1251_cmd_ps_mode(wl, CHIP_POWER_SAVE_MODE);
if (ret < 0)
return ret;
ret = wl1251_acx_sleep_auth(wl, WL1251_PSM_ELP);
if (ret < 0)
return ret;
break;
case STATION_IDLE:
wl1251_debug(DEBUG_PSM, "entering idle");
ret = wl1251_acx_sleep_auth(wl, WL1251_PSM_ELP);
if (ret < 0)
return ret;
ret = wl1251_cmd_template_set(wl, CMD_DISCONNECT, NULL, 0);
if (ret < 0)
return ret;
break;
case STATION_ACTIVE_MODE:
default:
wl1251_debug(DEBUG_PSM, "leaving psm");
ret = wl1251_acx_sleep_auth(wl, WL1251_PSM_CAM);
if (ret < 0)
return ret;
/* disable BET */
ret = wl1251_acx_bet_enable(wl, WL1251_ACX_BET_DISABLE,
WL1251_DEFAULT_BET_CONSECUTIVE);
if (ret < 0)
return ret;
/* disable beacon filtering */
ret = wl1251_acx_beacon_filter_opt(wl, false);
if (ret < 0)
return ret;
ret = wl1251_acx_wake_up_conditions(wl,
WAKE_UP_EVENT_DTIM_BITMAP,
wl->listen_int);
if (ret < 0)
return ret;
ret = wl1251_cmd_ps_mode(wl, CHIP_ACTIVE_MODE);
if (ret < 0)
return ret;
break;
}
wl->station_mode = mode;
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| kalle valo | kalle valo | 160 | 53.16% | 3 | 37.50% |
| jarkko nikula | jarkko nikula | 58 | 19.27% | 2 | 25.00% |
| david gnedt | david gnedt | 41 | 13.62% | 1 | 12.50% |
| juuso oikarinen | juuso oikarinen | 38 | 12.62% | 1 | 12.50% |
| grazvydas ignotas | grazvydas ignotas | 4 | 1.33% | 1 | 12.50% |
| Total | 301 | 100.00% | 8 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| kalle valo | kalle valo | 344 | 56.03% | 7 | 41.18% |
| juuso oikarinen | juuso oikarinen | 144 | 23.45% | 2 | 11.76% |
| jarkko nikula | jarkko nikula | 64 | 10.42% | 2 | 11.76% |
| david gnedt | david gnedt | 41 | 6.68% | 1 | 5.88% |
| grazvydas ignotas | grazvydas ignotas | 18 | 2.93% | 3 | 17.65% |
| bob copeland | bob copeland | 2 | 0.33% | 1 | 5.88% |
| geliang tang | geliang tang | 1 | 0.16% | 1 | 5.88% |
| Total | 614 | 100.00% | 17 | 100.00% |
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