3
* Copyright (c) 2004-2010 Atheros Communications Inc.
8
// Permission to use, copy, modify, and/or distribute this software for any
9
// purpose with or without fee is hereby granted, provided that the above
10
// copyright notice and this permission notice appear in all copies.
12
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25
* Implementation of system power management
28
#include "ar6000_drv.h"
29
#include <linux/inetdevice.h>
30
#include <linux/platform_device.h>
31
#include "wlan_config.h"
33
#ifdef CONFIG_HAS_WAKELOCK
34
#include <linux/wakelock.h>
37
#define WOW_ENABLE_MAX_INTERVAL 0
38
#define WOW_SET_SCAN_PARAMS 0
40
extern unsigned int wmitimeout;
41
extern wait_queue_head_t arEvent;
44
#ifdef CONFIG_HAS_WAKELOCK
45
struct wake_lock ar6k_suspend_wake_lock;
46
struct wake_lock ar6k_wow_wake_lock;
48
#endif /* CONFIG_PM */
51
extern void android_ar6k_check_wow_status(AR_SOFTC_T *ar, struct sk_buff *skb, A_BOOL isEvent);
53
#undef ATH_MODULE_NAME
54
#define ATH_MODULE_NAME pm
55
#define ATH_DEBUG_PM ATH_DEBUG_MAKE_MODULE_MASK(0)
58
static ATH_DEBUG_MASK_DESCRIPTION pm_debug_desc[] = {
59
{ ATH_DEBUG_PM , "System power management"},
62
ATH_DEBUG_INSTANTIATE_MODULE_VAR(pm,
64
"System Power Management",
65
ATH_DEBUG_MASK_DEFAULTS | ATH_DEBUG_PM,
66
ATH_DEBUG_DESCRIPTION_COUNT(pm_debug_desc),
71
A_STATUS ar6000_exit_cut_power_state(AR_SOFTC_T *ar);
74
static void ar6k_send_asleep_event_to_app(AR_SOFTC_T *ar, A_BOOL asleep)
77
union iwreq_data wrqu;
79
snprintf(buf, sizeof(buf), "HOST_ASLEEP=%s", asleep ? "asleep" : "awake");
80
A_MEMZERO(&wrqu, sizeof(wrqu));
81
wrqu.data.length = strlen(buf);
82
wireless_send_event(ar->arNetDev, IWEVCUSTOM, &wrqu, buf);
85
static void ar6000_wow_resume(AR_SOFTC_T *ar)
87
if (ar->arWowState!= WLAN_WOW_STATE_NONE) {
88
A_UINT16 fg_start_period = (ar->scParams.fg_start_period==0) ? 1 : ar->scParams.fg_start_period;
89
A_UINT16 bg_period = (ar->scParams.bg_period==0) ? 60 : ar->scParams.bg_period;
90
WMI_SET_HOST_SLEEP_MODE_CMD hostSleepMode = {TRUE, FALSE};
91
ar->arWowState = WLAN_WOW_STATE_NONE;
92
#ifdef CONFIG_HAS_WAKELOCK
93
wake_lock_timeout(&ar6k_wow_wake_lock, 3*HZ);
95
if (wmi_set_host_sleep_mode_cmd(ar->arWmi, &hostSleepMode)!=A_OK) {
96
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to setup restore host awake\n"));
98
#if WOW_SET_SCAN_PARAMS
99
wmi_scanparams_cmd(ar->arWmi, fg_start_period,
100
ar->scParams.fg_end_period,
102
ar->scParams.minact_chdwell_time,
103
ar->scParams.maxact_chdwell_time,
104
ar->scParams.pas_chdwell_time,
105
ar->scParams.shortScanRatio,
106
ar->scParams.scanCtrlFlags,
107
ar->scParams.max_dfsch_act_time,
108
ar->scParams.maxact_scan_per_ssid);
110
(void)fg_start_period;
115
#if WOW_ENABLE_MAX_INTERVAL /* we don't do it if the power consumption is already good enough. */
116
if (wmi_listeninterval_cmd(ar->arWmi, ar->arListenIntervalT, ar->arListenIntervalB) == A_OK) {
119
ar6k_send_asleep_event_to_app(ar, FALSE);
120
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Resume WoW successfully\n"));
122
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("WoW does not invoked. skip resume"));
124
ar->arWlanPowerState = WLAN_POWER_STATE_ON;
127
static void ar6000_wow_suspend(AR_SOFTC_T *ar)
129
#define WOW_LIST_ID 1
130
if (ar->arNetworkType != AP_NETWORK) {
131
/* Setup WoW for unicast & Arp request for our own IP
132
disable background scan. Set listen interval into 1000 TUs
133
Enable keepliave for 110 seconds
135
struct in_ifaddr **ifap = NULL;
136
struct in_ifaddr *ifa = NULL;
137
struct in_device *in_dev;
138
A_UINT8 macMask[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
140
WMI_ADD_WOW_PATTERN_CMD addWowCmd = { .filter = { 0 } };
141
WMI_DEL_WOW_PATTERN_CMD delWowCmd;
142
WMI_SET_HOST_SLEEP_MODE_CMD hostSleepMode = {FALSE, TRUE};
143
WMI_SET_WOW_MODE_CMD wowMode = { .enable_wow = TRUE,
144
.hostReqDelay = 500 };/*500 ms delay*/
146
if (ar->arWowState!= WLAN_WOW_STATE_NONE) {
147
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("System already go into wow mode!\n"));
151
ar6000_TxDataCleanup(ar); /* IMPORTANT, otherwise there will be 11mA after listen interval as 1000*/
153
#if WOW_ENABLE_MAX_INTERVAL /* we don't do it if the power consumption is already good enough. */
154
if (wmi_listeninterval_cmd(ar->arWmi, A_MAX_WOW_LISTEN_INTERVAL, 0) == A_OK) {
158
#if WOW_SET_SCAN_PARAMS
159
status = wmi_scanparams_cmd(ar->arWmi, 0xFFFF, 0, 0xFFFF, 0, 0, 0, 0, 0, 0, 0);
161
/* clear up our WoW pattern first */
162
delWowCmd.filter_list_id = WOW_LIST_ID;
163
delWowCmd.filter_id = 0;
164
wmi_del_wow_pattern_cmd(ar->arWmi, &delWowCmd);
166
/* setup unicast packet pattern for WoW */
167
if (ar->arNetDev->dev_addr[1]) {
168
addWowCmd.filter_list_id = WOW_LIST_ID;
169
addWowCmd.filter_size = 6; /* MAC address */
170
addWowCmd.filter_offset = 0;
171
status = wmi_add_wow_pattern_cmd(ar->arWmi, &addWowCmd, ar->arNetDev->dev_addr, macMask, addWowCmd.filter_size);
172
if (status != A_OK) {
173
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to add WoW pattern\n"));
176
/* setup ARP request for our own IP */
177
if ((in_dev = __in_dev_get_rtnl(ar->arNetDev)) != NULL) {
178
for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; ifap = &ifa->ifa_next) {
179
if (!strcmp(ar->arNetDev->name, ifa->ifa_label)) {
184
if (ifa && ifa->ifa_local) {
185
WMI_SET_IP_CMD ipCmd;
186
memset(&ipCmd, 0, sizeof(ipCmd));
187
ipCmd.ips[0] = ifa->ifa_local;
188
status = wmi_set_ip_cmd(ar->arWmi, &ipCmd);
189
if (status != A_OK) {
190
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to setup IP for ARP agent\n"));
194
#ifndef ATH6K_CONFIG_OTA_MODE
195
wmi_powermode_cmd(ar->arWmi, REC_POWER);
198
status = wmi_set_wow_mode_cmd(ar->arWmi, &wowMode);
199
if (status != A_OK) {
200
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to enable wow mode\n"));
202
ar6k_send_asleep_event_to_app(ar, TRUE);
204
status = wmi_set_host_sleep_mode_cmd(ar->arWmi, &hostSleepMode);
205
if (status != A_OK) {
206
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to set host asleep\n"));
209
ar->arWowState = WLAN_WOW_STATE_SUSPENDING;
210
if (ar->arTxPending[ar->arControlEp]) {
211
A_UINT32 timeleft = wait_event_interruptible_timeout(arEvent,
212
ar->arTxPending[ar->arControlEp] == 0, wmitimeout * HZ);
213
if (!timeleft || signal_pending(current)) {
214
/* what can I do? wow resume at once */
215
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to setup WoW. Pending wmi control data %d\n", ar->arTxPending[ar->arControlEp]));
219
status = hifWaitForPendingRecv(ar->arHifDevice);
221
ar->arWowState = WLAN_WOW_STATE_SUSPENDED;
222
ar->arWlanPowerState = WLAN_POWER_STATE_WOW;
224
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Not allowed to go to WOW at this moment.\n"));
228
A_STATUS ar6000_suspend_ev(void *context)
230
A_STATUS status = A_OK;
231
AR_SOFTC_T *ar = (AR_SOFTC_T *)context;
232
A_INT16 pmmode = ar->arSuspendConfig;
235
case WLAN_SUSPEND_WOW:
236
if (ar->arWmiReady && ar->arWlanState==WLAN_ENABLED && ar->arConnected) {
237
ar6000_wow_suspend(ar);
238
AR_DEBUG_PRINTF(ATH_DEBUG_PM,("%s:Suspend for wow mode %d\n", __func__, ar->arWlanPowerState));
240
pmmode = ar->arWow2Config;
241
goto wow_not_connected;
244
case WLAN_SUSPEND_CUT_PWR:
246
case WLAN_SUSPEND_CUT_PWR_IF_BT_OFF:
248
case WLAN_SUSPEND_DEEP_SLEEP:
251
status = ar6000_update_wlan_pwr_state(ar, WLAN_DISABLED, TRUE);
252
if (ar->arWlanPowerState==WLAN_POWER_STATE_ON ||
253
ar->arWlanPowerState==WLAN_POWER_STATE_WOW) {
254
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Strange suspend state for not wow mode %d", ar->arWlanPowerState));
256
AR_DEBUG_PRINTF(ATH_DEBUG_PM,("%s:Suspend for %d mode pwr %d status %d\n", __func__, pmmode, ar->arWlanPowerState, status));
257
status = (ar->arWlanPowerState == WLAN_POWER_STATE_CUT_PWR) ? A_OK : A_EBUSY;
261
ar->scan_triggered = 0;
265
A_STATUS ar6000_resume_ev(void *context)
267
AR_SOFTC_T *ar = (AR_SOFTC_T *)context;
268
A_UINT16 powerState = ar->arWlanPowerState;
270
#ifdef CONFIG_HAS_WAKELOCK
271
wake_lock(&ar6k_suspend_wake_lock);
273
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: enter previous state %d wowState %d\n", __func__, powerState, ar->arWowState));
274
switch (powerState) {
275
case WLAN_POWER_STATE_WOW:
276
ar6000_wow_resume(ar);
278
case WLAN_POWER_STATE_CUT_PWR:
280
case WLAN_POWER_STATE_DEEP_SLEEP:
281
ar6000_update_wlan_pwr_state(ar, WLAN_ENABLED, TRUE);
282
AR_DEBUG_PRINTF(ATH_DEBUG_PM,("%s:Resume for %d mode pwr %d\n", __func__, powerState, ar->arWlanPowerState));
284
case WLAN_POWER_STATE_ON:
287
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Strange SDIO bus power mode!!\n"));
290
#ifdef CONFIG_HAS_WAKELOCK
291
wake_unlock(&ar6k_suspend_wake_lock);
296
void ar6000_check_wow_status(AR_SOFTC_T *ar, struct sk_buff *skb, A_BOOL isEvent)
298
if (ar->arWowState!=WLAN_WOW_STATE_NONE) {
299
if (ar->arWowState==WLAN_WOW_STATE_SUSPENDING) {
300
AR_DEBUG_PRINTF(ATH_DEBUG_PM,("\n%s: Received IRQ while we are wow suspending!!!\n\n", __func__));
303
/* Wow resume from irq interrupt */
304
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: WoW resume from irq thread status %d\n", __func__, ar->arWlanPowerState));
305
ar6000_wow_resume(ar);
308
android_ar6k_check_wow_status(ar, skb, isEvent);
313
A_STATUS ar6000_power_change_ev(void *context, A_UINT32 config)
315
AR_SOFTC_T *ar = (AR_SOFTC_T *)context;
316
A_STATUS status = A_OK;
318
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: power change event callback %d \n", __func__, config));
320
case HIF_DEVICE_POWER_UP:
321
ar6000_restart_endpoint(ar->arNetDev);
324
case HIF_DEVICE_POWER_DOWN:
325
case HIF_DEVICE_POWER_CUT:
332
static int ar6000_pm_probe(struct platform_device *pdev)
334
plat_setup_power(1,1);
338
static int ar6000_pm_remove(struct platform_device *pdev)
340
plat_setup_power(0,1);
344
static int ar6000_pm_suspend(struct platform_device *pdev, pm_message_t state)
349
static int ar6000_pm_resume(struct platform_device *pdev)
354
static struct platform_driver ar6000_pm_device = {
355
.probe = ar6000_pm_probe,
356
.remove = ar6000_pm_remove,
357
.suspend = ar6000_pm_suspend,
358
.resume = ar6000_pm_resume,
360
.name = "wlan_ar6000_pm",
363
#endif /* CONFIG_PM */
366
ar6000_setup_cut_power_state(struct ar6_softc *ar, AR6000_WLAN_STATE state)
368
A_STATUS status = A_OK;
369
HIF_DEVICE_POWER_CHANGE_TYPE config;
371
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: Cut power %d %d \n", __func__,state, ar->arWlanPowerState));
373
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Wlan OFF %d BT OFf %d \n", ar->arWlanOff, ar->arBTOff));
376
if (state == WLAN_ENABLED) {
377
/* Not in cut power state.. exit */
378
if (ar->arWlanPowerState != WLAN_POWER_STATE_CUT_PWR) {
382
plat_setup_power(1,0);
384
/* Change the state to ON */
385
ar->arWlanPowerState = WLAN_POWER_STATE_ON;
388
/* Indicate POWER_UP to HIF */
389
config = HIF_DEVICE_POWER_UP;
390
status = HIFConfigureDevice(ar->arHifDevice,
391
HIF_DEVICE_POWER_STATE_CHANGE,
393
sizeof(HIF_DEVICE_POWER_CHANGE_TYPE));
395
if (status == A_PENDING) {
397
/* Wait for WMI ready event */
398
A_UINT32 timeleft = wait_event_interruptible_timeout(arEvent,
399
(ar->arWmiReady == TRUE), wmitimeout * HZ);
400
if (!timeleft || signal_pending(current)) {
401
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("ar6000 : Failed to get wmi ready \n"));
407
} else if (status == A_OK) {
408
ar6000_restart_endpoint(ar->arNetDev);
411
} else if (state == WLAN_DISABLED) {
414
/* Already in cut power state.. exit */
415
if (ar->arWlanPowerState == WLAN_POWER_STATE_CUT_PWR) {
418
ar6000_stop_endpoint(ar->arNetDev, TRUE, FALSE);
420
config = HIF_DEVICE_POWER_CUT;
421
status = HIFConfigureDevice(ar->arHifDevice,
422
HIF_DEVICE_POWER_STATE_CHANGE,
424
sizeof(HIF_DEVICE_POWER_CHANGE_TYPE));
426
plat_setup_power(0,0);
428
ar->arWlanPowerState = WLAN_POWER_STATE_CUT_PWR;
436
ar6000_setup_deep_sleep_state(struct ar6_softc *ar, AR6000_WLAN_STATE state)
438
A_STATUS status = A_OK;
440
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("%s: Deep sleep %d %d \n", __func__,state, ar->arWlanPowerState));
442
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Wlan OFF %d BT OFf %d \n", ar->arWlanOff, ar->arBTOff));
445
WMI_SET_HOST_SLEEP_MODE_CMD hostSleepMode;
447
if (state == WLAN_ENABLED) {
448
A_UINT16 fg_start_period;
450
/* Not in deep sleep state.. exit */
451
if (ar->arWlanPowerState != WLAN_POWER_STATE_DEEP_SLEEP) {
452
if (ar->arWlanPowerState != WLAN_POWER_STATE_ON) {
453
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Strange state when we resume from deep sleep %d\n", ar->arWlanPowerState));
458
fg_start_period = (ar->scParams.fg_start_period==0) ? 1 : ar->scParams.fg_start_period;
459
hostSleepMode.awake = TRUE;
460
hostSleepMode.asleep = FALSE;
462
if ((status=wmi_set_host_sleep_mode_cmd(ar->arWmi, &hostSleepMode)) != A_OK) {
466
/* Change the state to ON */
467
ar->arWlanPowerState = WLAN_POWER_STATE_ON;
469
/* Enable foreground scanning */
470
if ((status=wmi_scanparams_cmd(ar->arWmi, fg_start_period,
471
ar->scParams.fg_end_period,
472
ar->scParams.bg_period,
473
ar->scParams.minact_chdwell_time,
474
ar->scParams.maxact_chdwell_time,
475
ar->scParams.pas_chdwell_time,
476
ar->scParams.shortScanRatio,
477
ar->scParams.scanCtrlFlags,
478
ar->scParams.max_dfsch_act_time,
479
ar->scParams.maxact_scan_per_ssid)) != A_OK)
484
if (ar->arNetworkType != AP_NETWORK)
487
if (ar6000_connect_to_ap(ar) != A_OK) {
488
/* no need to report error if connection failed */
493
} else if (state == WLAN_DISABLED){
494
WMI_SET_WOW_MODE_CMD wowMode = { .enable_wow = FALSE };
496
/* Already in deep sleep state.. exit */
497
if (ar->arWlanPowerState != WLAN_POWER_STATE_ON) {
498
if (ar->arWlanPowerState != WLAN_POWER_STATE_DEEP_SLEEP) {
499
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("Strange state when we suspend for deep sleep %d\n", ar->arWlanPowerState));
504
if (ar->arNetworkType != AP_NETWORK)
506
/* Disconnect from the AP and disable foreground scanning */
507
AR6000_SPIN_LOCK(&ar->arLock, 0);
508
if (ar->arConnected == TRUE || ar->arConnectPending == TRUE) {
509
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
510
wmi_disconnect_cmd(ar->arWmi);
512
AR6000_SPIN_UNLOCK(&ar->arLock, 0);
516
ar->scan_triggered = 0;
518
if ((status=wmi_scanparams_cmd(ar->arWmi, 0xFFFF, 0, 0, 0, 0, 0, 0, 0, 0, 0)) != A_OK) {
522
/* make sure we disable wow for deep sleep */
523
if ((status=wmi_set_wow_mode_cmd(ar->arWmi, &wowMode))!=A_OK)
528
ar6000_TxDataCleanup(ar);
529
#ifndef ATH6K_CONFIG_OTA_MODE
530
wmi_powermode_cmd(ar->arWmi, REC_POWER);
533
hostSleepMode.awake = FALSE;
534
hostSleepMode.asleep = TRUE;
535
if ((status=wmi_set_host_sleep_mode_cmd(ar->arWmi, &hostSleepMode))!=A_OK) {
538
if (ar->arTxPending[ar->arControlEp]) {
539
A_UINT32 timeleft = wait_event_interruptible_timeout(arEvent,
540
ar->arTxPending[ar->arControlEp] == 0, wmitimeout * HZ);
541
if (!timeleft || signal_pending(current)) {
546
status = hifWaitForPendingRecv(ar->arHifDevice);
548
ar->arWlanPowerState = WLAN_POWER_STATE_DEEP_SLEEP;
553
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to enter/exit deep sleep %d\n", state));
560
ar6000_update_wlan_pwr_state(struct ar6_softc *ar, AR6000_WLAN_STATE state, A_BOOL pmEvent)
562
A_STATUS status = A_OK;
563
A_UINT16 powerState, oldPowerState;
564
AR6000_WLAN_STATE oldstate = ar->arWlanState;
565
A_BOOL wlanOff = ar->arWlanOff;
567
A_BOOL btOff = ar->arBTOff;
568
#endif /* CONFIG_PM */
570
if ((state!=WLAN_DISABLED && state!=WLAN_ENABLED)) {
574
if (ar->bIsDestroyProgress) {
578
if (down_interruptible(&ar->arSem)) {
582
if (ar->bIsDestroyProgress) {
587
ar->arWlanState = wlanOff ? WLAN_DISABLED : state;
588
oldPowerState = ar->arWlanPowerState;
589
if (state == WLAN_ENABLED) {
590
powerState = ar->arWlanPowerState;
591
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("WLAN PWR set to ENABLE^^\n"));
593
if (powerState == WLAN_POWER_STATE_DEEP_SLEEP) {
594
status = ar6000_setup_deep_sleep_state(ar, WLAN_ENABLED);
595
} else if (powerState == WLAN_POWER_STATE_CUT_PWR) {
596
status = ar6000_setup_cut_power_state(ar, WLAN_ENABLED);
600
else if (pmEvent && wlanOff) {
601
A_BOOL allowCutPwr = ((!ar->arBTSharing) || btOff);
602
if ((powerState==WLAN_POWER_STATE_CUT_PWR) && (!allowCutPwr)) {
603
/* Come out of cut power */
604
ar6000_setup_cut_power_state(ar, WLAN_ENABLED);
605
status = ar6000_setup_deep_sleep_state(ar, WLAN_DISABLED);
608
#endif /* CONFIG_PM */
609
} else if (state == WLAN_DISABLED) {
610
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("WLAN PWR set to DISABLED~\n"));
611
powerState = WLAN_POWER_STATE_DEEP_SLEEP;
613
if (pmEvent) { /* disable due to suspend */
614
A_BOOL suspendCutPwr = (ar->arSuspendConfig == WLAN_SUSPEND_CUT_PWR ||
615
(ar->arSuspendConfig == WLAN_SUSPEND_WOW &&
616
ar->arWow2Config==WLAN_SUSPEND_CUT_PWR));
617
A_BOOL suspendCutIfBtOff = ((ar->arSuspendConfig ==
618
WLAN_SUSPEND_CUT_PWR_IF_BT_OFF ||
619
(ar->arSuspendConfig == WLAN_SUSPEND_WOW &&
620
ar->arWow2Config==WLAN_SUSPEND_CUT_PWR_IF_BT_OFF)) &&
621
(!ar->arBTSharing || btOff));
622
if ((suspendCutPwr) ||
623
(suspendCutIfBtOff) ||
624
(ar->arWlanState==WLAN_POWER_STATE_CUT_PWR))
626
powerState = WLAN_POWER_STATE_CUT_PWR;
630
(ar->arWlanOffConfig == WLAN_OFF_CUT_PWR) &&
631
(!ar->arBTSharing || btOff))
633
/* For BT clock sharing designs, CUT_POWER depend on BT state */
634
powerState = WLAN_POWER_STATE_CUT_PWR;
637
#endif /* CONFIG_PM */
639
if (powerState == WLAN_POWER_STATE_DEEP_SLEEP) {
640
if (ar->arWlanPowerState == WLAN_POWER_STATE_CUT_PWR) {
641
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("Load firmware before set to deep sleep\n"));
642
ar6000_setup_cut_power_state(ar, WLAN_ENABLED);
644
status = ar6000_setup_deep_sleep_state(ar, WLAN_DISABLED);
645
} else if (powerState == WLAN_POWER_STATE_CUT_PWR) {
646
status = ar6000_setup_cut_power_state(ar, WLAN_DISABLED);
652
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("Fail to setup WLAN state %d\n", ar->arWlanState));
653
ar->arWlanState = oldstate;
654
} else if (status == A_OK) {
655
WMI_REPORT_SLEEP_STATE_EVENT wmiSleepEvent, *pSleepEvent = NULL;
656
if ((ar->arWlanPowerState == WLAN_POWER_STATE_ON) && (oldPowerState != WLAN_POWER_STATE_ON)) {
657
wmiSleepEvent.sleepState = WMI_REPORT_SLEEP_STATUS_IS_AWAKE;
658
pSleepEvent = &wmiSleepEvent;
659
} else if ((ar->arWlanPowerState != WLAN_POWER_STATE_ON) && (oldPowerState == WLAN_POWER_STATE_ON)) {
660
wmiSleepEvent.sleepState = WMI_REPORT_SLEEP_STATUS_IS_DEEP_SLEEP;
661
pSleepEvent = &wmiSleepEvent;
664
AR_DEBUG_PRINTF(ATH_DEBUG_PM, ("SENT WLAN Sleep Event %d\n", wmiSleepEvent.sleepState));
665
ar6000_send_event_to_app(ar, WMI_REPORT_SLEEP_STATE_EVENTID, (A_UINT8*)pSleepEvent,
666
sizeof(WMI_REPORT_SLEEP_STATE_EVENTID));
674
ar6000_set_bt_hw_state(struct ar6_softc *ar, A_UINT32 enable)
677
A_BOOL off = (enable == 0);
679
if (ar->arBTOff == off) {
683
status = ar6000_update_wlan_pwr_state(ar, ar->arWlanOff ? WLAN_DISABLED : WLAN_ENABLED, FALSE);
691
ar6000_set_wlan_state(struct ar6_softc *ar, AR6000_WLAN_STATE state)
694
A_BOOL off = (state == WLAN_DISABLED);
695
if (ar->arWlanOff == off) {
699
status = ar6000_update_wlan_pwr_state(ar, state, FALSE);
703
void ar6000_pm_init()
705
A_REGISTER_MODULE_DEBUG_INFO(pm);
707
#ifdef CONFIG_HAS_WAKELOCK
708
wake_lock_init(&ar6k_suspend_wake_lock, WAKE_LOCK_SUSPEND, "ar6k_suspend");
709
wake_lock_init(&ar6k_wow_wake_lock, WAKE_LOCK_SUSPEND, "ar6k_wow");
712
* Register ar6000_pm_device into system.
713
* We should also add platform_device into the first item of array
714
* of devices[] in file arch/xxx/mach-xxx/board-xxxx.c
716
if (platform_driver_register(&ar6000_pm_device)) {
717
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("ar6000: fail to register the power control driver.\n"));
719
#endif /* CONFIG_PM */
722
void ar6000_pm_exit()
725
platform_driver_unregister(&ar6000_pm_device);
726
#ifdef CONFIG_HAS_WAKELOCK
727
wake_lock_destroy(&ar6k_suspend_wake_lock);
728
wake_lock_destroy(&ar6k_wow_wake_lock);
730
#endif /* CONFIG_PM */