1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 ******************************************************************************/
15 #define _RTW_PWRCTRL_C_
16
17 #include <osdep_service.h>
18 #include <drv_types.h>
19 #include <osdep_intf.h>
20 #include <usb_ops_linux.h>
21 #include <linux/usb.h>
22
rtw_hw_suspend(struct adapter * padapter)23 static int rtw_hw_suspend(struct adapter *padapter)
24 {
25 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
26 struct net_device *pnetdev = padapter->pnetdev;
27
28
29 if ((!padapter->bup) || (padapter->bDriverStopped) ||
30 (padapter->bSurpriseRemoved)) {
31 DBG_88E("padapter->bup=%d bDriverStopped=%d bSurpriseRemoved = %d\n",
32 padapter->bup, padapter->bDriverStopped,
33 padapter->bSurpriseRemoved);
34 goto error_exit;
35 }
36
37 /* system suspend */
38 LeaveAllPowerSaveMode(padapter);
39
40 DBG_88E("==> rtw_hw_suspend\n");
41 mutex_lock(&pwrpriv->mutex_lock);
42 pwrpriv->bips_processing = true;
43 /* s1. */
44 if (pnetdev) {
45 netif_carrier_off(pnetdev);
46 netif_tx_stop_all_queues(pnetdev);
47 }
48
49 /* s2. */
50 rtw_disassoc_cmd(padapter, 500, false);
51
52 /* s2-2. indicate disconnect to os */
53 {
54 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
55
56 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
57 _clr_fwstate_(pmlmepriv, _FW_LINKED);
58
59 rtw_led_control(padapter, LED_CTL_NO_LINK);
60
61 rtw_os_indicate_disconnect(padapter);
62
63 /* donnot enqueue cmd */
64 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 0);
65 }
66 }
67 /* s2-3. */
68 rtw_free_assoc_resources(padapter);
69
70 /* s2-4. */
71 rtw_free_network_queue(padapter, true);
72 rtw_ips_dev_unload(padapter);
73 pwrpriv->rf_pwrstate = rf_off;
74 pwrpriv->bips_processing = false;
75
76 mutex_unlock(&pwrpriv->mutex_lock);
77
78 return 0;
79
80 error_exit:
81 DBG_88E("%s, failed\n", __func__);
82 return -1;
83 }
84
rtw_hw_resume(struct adapter * padapter)85 static int rtw_hw_resume(struct adapter *padapter)
86 {
87 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
88 struct net_device *pnetdev = padapter->pnetdev;
89
90
91 /* system resume */
92 DBG_88E("==> rtw_hw_resume\n");
93 mutex_lock(&pwrpriv->mutex_lock);
94 pwrpriv->bips_processing = true;
95 rtw_reset_drv_sw(padapter);
96
97 if (pm_netdev_open(pnetdev, false) != 0) {
98 mutex_unlock(&pwrpriv->mutex_lock);
99 goto error_exit;
100 }
101
102 netif_device_attach(pnetdev);
103 netif_carrier_on(pnetdev);
104
105 if (!netif_queue_stopped(pnetdev))
106 netif_start_queue(pnetdev);
107 else
108 netif_wake_queue(pnetdev);
109
110 pwrpriv->bkeepfwalive = false;
111 pwrpriv->brfoffbyhw = false;
112
113 pwrpriv->rf_pwrstate = rf_on;
114 pwrpriv->bips_processing = false;
115
116 mutex_unlock(&pwrpriv->mutex_lock);
117
118
119 return 0;
120 error_exit:
121 DBG_88E("%s, Open net dev failed\n", __func__);
122 return -1;
123 }
124
ips_enter(struct adapter * padapter)125 void ips_enter(struct adapter *padapter)
126 {
127 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
128 struct xmit_priv *pxmit_priv = &padapter->xmitpriv;
129
130 if (padapter->registrypriv.mp_mode == 1)
131 return;
132
133 if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
134 pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) {
135 DBG_88E_LEVEL(_drv_info_, "There are some pkts to transmit\n");
136 DBG_88E_LEVEL(_drv_info_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n",
137 pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt);
138 return;
139 }
140
141 mutex_lock(&pwrpriv->mutex_lock);
142
143 pwrpriv->bips_processing = true;
144
145 /* syn ips_mode with request */
146 pwrpriv->ips_mode = pwrpriv->ips_mode_req;
147
148 pwrpriv->ips_enter_cnts++;
149 DBG_88E("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts);
150 if (rf_off == pwrpriv->change_rfpwrstate) {
151 pwrpriv->bpower_saving = true;
152 DBG_88E_LEVEL(_drv_info_, "nolinked power save enter\n");
153
154 if (pwrpriv->ips_mode == IPS_LEVEL_2)
155 pwrpriv->bkeepfwalive = true;
156
157 rtw_ips_pwr_down(padapter);
158 pwrpriv->rf_pwrstate = rf_off;
159 }
160 pwrpriv->bips_processing = false;
161
162 mutex_unlock(&pwrpriv->mutex_lock);
163 }
164
ips_leave(struct adapter * padapter)165 int ips_leave(struct adapter *padapter)
166 {
167 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
168 struct security_priv *psecuritypriv = &(padapter->securitypriv);
169 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
170 int result = _SUCCESS;
171 int keyid;
172
173
174 mutex_lock(&pwrpriv->mutex_lock);
175
176 if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) {
177 pwrpriv->bips_processing = true;
178 pwrpriv->change_rfpwrstate = rf_on;
179 pwrpriv->ips_leave_cnts++;
180 DBG_88E("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts);
181
182 result = rtw_ips_pwr_up(padapter);
183 if (result == _SUCCESS) {
184 pwrpriv->rf_pwrstate = rf_on;
185 }
186 DBG_88E_LEVEL(_drv_info_, "nolinked power save leave\n");
187
188 if ((_WEP40_ == psecuritypriv->dot11PrivacyAlgrthm) || (_WEP104_ == psecuritypriv->dot11PrivacyAlgrthm)) {
189 DBG_88E("==>%s, channel(%d), processing(%x)\n", __func__, padapter->mlmeextpriv.cur_channel, pwrpriv->bips_processing);
190 set_channel_bwmode(padapter, padapter->mlmeextpriv.cur_channel, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
191 for (keyid = 0; keyid < 4; keyid++) {
192 if (pmlmepriv->key_mask & BIT(keyid)) {
193 if (keyid == psecuritypriv->dot11PrivacyKeyIndex)
194 result = rtw_set_key(padapter, psecuritypriv, keyid, 1);
195 else
196 result = rtw_set_key(padapter, psecuritypriv, keyid, 0);
197 }
198 }
199 }
200
201 DBG_88E("==> ips_leave.....LED(0x%08x)...\n", usb_read32(padapter, 0x4c));
202 pwrpriv->bips_processing = false;
203
204 pwrpriv->bkeepfwalive = false;
205 pwrpriv->bpower_saving = false;
206 }
207
208 mutex_unlock(&pwrpriv->mutex_lock);
209
210 return result;
211 }
212
rtw_pwr_unassociated_idle(struct adapter * adapter)213 static bool rtw_pwr_unassociated_idle(struct adapter *adapter)
214 {
215 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
216 bool ret = false;
217
218 if (time_after_eq(adapter->pwrctrlpriv.ips_deny_time, jiffies))
219 goto exit;
220
221 if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR) ||
222 check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) ||
223 check_fwstate(pmlmepriv, WIFI_AP_STATE) ||
224 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE))
225 goto exit;
226
227 ret = true;
228
229 exit:
230 return ret;
231 }
232
rtw_ps_processor(struct adapter * padapter)233 void rtw_ps_processor(struct adapter *padapter)
234 {
235 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
236 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
237 enum rt_rf_power_state rfpwrstate;
238
239 pwrpriv->ps_processing = true;
240
241 if (pwrpriv->bips_processing)
242 goto exit;
243
244 if (padapter->pwrctrlpriv.bHWPwrPindetect) {
245 rfpwrstate = RfOnOffDetect(padapter);
246 DBG_88E("@@@@- #2 %s==> rfstate:%s\n", __func__, (rfpwrstate == rf_on) ? "rf_on" : "rf_off");
247
248 if (rfpwrstate != pwrpriv->rf_pwrstate) {
249 if (rfpwrstate == rf_off) {
250 pwrpriv->change_rfpwrstate = rf_off;
251 pwrpriv->brfoffbyhw = true;
252 rtw_hw_suspend(padapter);
253 } else {
254 pwrpriv->change_rfpwrstate = rf_on;
255 rtw_hw_resume(padapter);
256 }
257 DBG_88E("current rf_pwrstate(%s)\n", (pwrpriv->rf_pwrstate == rf_off) ? "rf_off" : "rf_on");
258 }
259 pwrpriv->pwr_state_check_cnts++;
260 }
261
262 if (pwrpriv->ips_mode_req == IPS_NONE)
263 goto exit;
264
265 if (!rtw_pwr_unassociated_idle(padapter))
266 goto exit;
267
268 if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0)) {
269 DBG_88E("==>%s .fw_state(%x)\n", __func__, get_fwstate(pmlmepriv));
270 pwrpriv->change_rfpwrstate = rf_off;
271
272 ips_enter(padapter);
273 }
274 exit:
275 rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
276 pwrpriv->ps_processing = false;
277 }
278
pwr_state_check_handler(unsigned long data)279 static void pwr_state_check_handler(unsigned long data)
280 {
281 struct adapter *padapter = (struct adapter *)data;
282 rtw_ps_cmd(padapter);
283 }
284
285 /*
286 *
287 * Parameters
288 * padapter
289 * pslv power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
290 *
291 */
rtw_set_rpwm(struct adapter * padapter,u8 pslv)292 void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
293 {
294 u8 rpwm;
295 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
296
297 pslv = PS_STATE(pslv);
298
299 if (pwrpriv->btcoex_rfon) {
300 if (pslv < PS_STATE_S4)
301 pslv = PS_STATE_S3;
302 }
303
304 if ((pwrpriv->rpwm == pslv)) {
305 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
306 ("%s: Already set rpwm[0x%02X], new=0x%02X!\n", __func__, pwrpriv->rpwm, pslv));
307 return;
308 }
309
310 if ((padapter->bSurpriseRemoved) ||
311 (!padapter->hw_init_completed)) {
312 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
313 ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
314 __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed));
315
316 pwrpriv->cpwm = PS_STATE_S4;
317
318 return;
319 }
320
321 if (padapter->bDriverStopped) {
322 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
323 ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv));
324
325 if (pslv < PS_STATE_S2) {
326 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
327 ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv));
328 return;
329 }
330 }
331
332 rpwm = pslv | pwrpriv->tog;
333 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
334 ("rtw_set_rpwm: rpwm=0x%02x cpwm=0x%02x\n", rpwm, pwrpriv->cpwm));
335
336 pwrpriv->rpwm = pslv;
337
338 rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm));
339
340 pwrpriv->tog += 0x80;
341 pwrpriv->cpwm = pslv;
342 }
343
PS_RDY_CHECK(struct adapter * padapter)344 static u8 PS_RDY_CHECK(struct adapter *padapter)
345 {
346 unsigned long curr_time, delta_time;
347 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
348 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
349
350
351 curr_time = jiffies;
352 delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp;
353
354 if (delta_time < LPS_DELAY_TIME)
355 return false;
356
357 if ((check_fwstate(pmlmepriv, _FW_LINKED) == false) ||
358 (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) ||
359 (check_fwstate(pmlmepriv, WIFI_AP_STATE)) ||
360 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
361 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
362 return false;
363 if (pwrpriv->bInSuspend)
364 return false;
365 if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) {
366 DBG_88E("Group handshake still in progress !!!\n");
367 return false;
368 }
369 return true;
370 }
371
rtw_set_ps_mode(struct adapter * padapter,u8 ps_mode,u8 smart_ps,u8 bcn_ant_mode)372 void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode)
373 {
374 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
375
376 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
377 ("%s: PowerMode=%d Smart_PS=%d\n",
378 __func__, ps_mode, smart_ps));
379
380 if (ps_mode > PM_Card_Disable) {
381 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode));
382 return;
383 }
384
385 if (pwrpriv->pwr_mode == ps_mode) {
386 if (PS_MODE_ACTIVE == ps_mode)
387 return;
388
389 if ((pwrpriv->smart_ps == smart_ps) &&
390 (pwrpriv->bcn_ant_mode == bcn_ant_mode))
391 return;
392 }
393
394 /* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */
395 if (ps_mode == PS_MODE_ACTIVE) {
396 if (PS_RDY_CHECK(padapter)) {
397 DBG_88E("%s: Enter 802.11 power save\n", __func__);
398 pwrpriv->bFwCurrentInPSMode = true;
399 pwrpriv->pwr_mode = ps_mode;
400 pwrpriv->smart_ps = smart_ps;
401 pwrpriv->bcn_ant_mode = bcn_ant_mode;
402 rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
403 rtw_set_rpwm(padapter, PS_STATE_S2);
404 }
405 }
406 }
407
408 /*
409 * Return:
410 * 0: Leave OK
411 * -1: Timeout
412 * -2: Other error
413 */
LPS_RF_ON_check(struct adapter * padapter,u32 delay_ms)414 s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
415 {
416 unsigned long start_time;
417 u8 bAwake = false;
418 s32 err = 0;
419
420
421 start_time = jiffies;
422 while (1) {
423 rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake);
424 if (bAwake)
425 break;
426
427 if (padapter->bSurpriseRemoved) {
428 err = -2;
429 DBG_88E("%s: device surprise removed!!\n", __func__);
430 break;
431 }
432
433 if (jiffies_to_msecs(jiffies - start_time) > delay_ms) {
434 err = -1;
435 DBG_88E("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
436 break;
437 }
438 msleep(1);
439 }
440
441 return err;
442 }
443
444 /* */
445 /* Description: */
446 /* Enter the leisure power save mode. */
447 /* */
LPS_Enter(struct adapter * padapter)448 void LPS_Enter(struct adapter *padapter)
449 {
450 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
451
452 if (PS_RDY_CHECK(padapter) == false)
453 return;
454
455 if (pwrpriv->bLeisurePs) {
456 /* Idle for a while if we connect to AP a while ago. */
457 if (pwrpriv->LpsIdleCount >= 2) { /* 4 Sec */
458 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
459 pwrpriv->bpower_saving = true;
460 DBG_88E("%s smart_ps:%d\n", __func__, pwrpriv->smart_ps);
461 /* For Tenda W311R IOT issue */
462 rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, pwrpriv->smart_ps, 0);
463 }
464 } else {
465 pwrpriv->LpsIdleCount++;
466 }
467 }
468 }
469
470 #define LPS_LEAVE_TIMEOUT_MS 100
471
472 /* Description: */
473 /* Leave the leisure power save mode. */
LPS_Leave(struct adapter * padapter)474 void LPS_Leave(struct adapter *padapter)
475 {
476 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
477
478 if (pwrpriv->bLeisurePs) {
479 if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
480 rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0);
481
482 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
483 LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS);
484 }
485 }
486
487 pwrpriv->bpower_saving = false;
488 }
489
490 /* */
491 /* Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
492 /* Move code to function by tynli. 2010.03.26. */
493 /* */
LeaveAllPowerSaveMode(struct adapter * Adapter)494 void LeaveAllPowerSaveMode(struct adapter *Adapter)
495 {
496 struct mlme_priv *pmlmepriv = &(Adapter->mlmepriv);
497 u8 enqueue = 0;
498
499 if (check_fwstate(pmlmepriv, _FW_LINKED))
500 rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue);
501 }
502
rtw_init_pwrctrl_priv(struct adapter * padapter)503 void rtw_init_pwrctrl_priv(struct adapter *padapter)
504 {
505 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
506
507 mutex_init(&pwrctrlpriv->mutex_lock);
508 pwrctrlpriv->rf_pwrstate = rf_on;
509 pwrctrlpriv->ips_enter_cnts = 0;
510 pwrctrlpriv->ips_leave_cnts = 0;
511 pwrctrlpriv->bips_processing = false;
512
513 pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
514 pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
515
516 pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
517 pwrctrlpriv->pwr_state_check_cnts = 0;
518 pwrctrlpriv->bInternalAutoSuspend = false;
519 pwrctrlpriv->bInSuspend = false;
520 pwrctrlpriv->bkeepfwalive = false;
521
522 pwrctrlpriv->LpsIdleCount = 0;
523 if (padapter->registrypriv.mp_mode == 1)
524 pwrctrlpriv->power_mgnt = PS_MODE_ACTIVE;
525 else
526 pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/* PS_MODE_MIN; */
527 pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;
528
529 pwrctrlpriv->bFwCurrentInPSMode = false;
530
531 pwrctrlpriv->rpwm = 0;
532 pwrctrlpriv->cpwm = PS_STATE_S4;
533
534 pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
535 pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
536 pwrctrlpriv->bcn_ant_mode = 0;
537
538 pwrctrlpriv->tog = 0x80;
539
540 pwrctrlpriv->btcoex_rfon = false;
541
542 setup_timer(&pwrctrlpriv->pwr_state_check_timer,
543 pwr_state_check_handler,
544 (unsigned long)padapter);
545 }
546
547 /*
548 * rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
549 * @adapter: pointer to struct adapter structure
550 * @ips_deffer_ms: the ms will prevent from falling into IPS after wakeup
551 * Return _SUCCESS or _FAIL
552 */
553
_rtw_pwr_wakeup(struct adapter * padapter,u32 ips_deffer_ms,const char * caller)554 int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *caller)
555 {
556 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
557 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
558 unsigned long expires;
559 unsigned long start;
560 int ret = _SUCCESS;
561
562 expires = jiffies + msecs_to_jiffies(ips_deffer_ms);
563 if (time_before(pwrpriv->ips_deny_time, expires))
564 pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
565
566 start = jiffies;
567 if (pwrpriv->ps_processing) {
568 DBG_88E("%s wait ps_processing...\n", __func__);
569 while (pwrpriv->ps_processing &&
570 jiffies_to_msecs(jiffies - start) <= 3000)
571 usleep_range(1000, 3000);
572 if (pwrpriv->ps_processing)
573 DBG_88E("%s wait ps_processing timeout\n", __func__);
574 else
575 DBG_88E("%s wait ps_processing done\n", __func__);
576 }
577
578 /* System suspend is not allowed to wakeup */
579 if ((!pwrpriv->bInternalAutoSuspend) && (pwrpriv->bInSuspend)) {
580 ret = _FAIL;
581 goto exit;
582 }
583
584 /* block??? */
585 if ((pwrpriv->bInternalAutoSuspend) && (padapter->net_closed)) {
586 ret = _FAIL;
587 goto exit;
588 }
589
590 /* I think this should be check in IPS, LPS, autosuspend functions... */
591 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
592 ret = _SUCCESS;
593 goto exit;
594 }
595 if (rf_off == pwrpriv->rf_pwrstate) {
596 DBG_88E("%s call ips_leave....\n", __func__);
597 if (_FAIL == ips_leave(padapter)) {
598 DBG_88E("======> ips_leave fail.............\n");
599 ret = _FAIL;
600 goto exit;
601 }
602 }
603
604 /* TODO: the following checking need to be merged... */
605 if (padapter->bDriverStopped || !padapter->bup ||
606 !padapter->hw_init_completed) {
607 DBG_88E("%s: bDriverStopped=%d, bup=%d, hw_init_completed =%u\n"
608 , caller
609 , padapter->bDriverStopped
610 , padapter->bup
611 , padapter->hw_init_completed);
612 ret = false;
613 goto exit;
614 }
615
616 exit:
617 expires = jiffies + msecs_to_jiffies(ips_deffer_ms);
618 if (time_before(pwrpriv->ips_deny_time, expires))
619 pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
620 return ret;
621 }
622
rtw_pm_set_lps(struct adapter * padapter,u8 mode)623 int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
624 {
625 int ret = 0;
626 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
627
628 if (mode < PS_MODE_NUM) {
629 if (pwrctrlpriv->power_mgnt != mode) {
630 if (PS_MODE_ACTIVE == mode)
631 LeaveAllPowerSaveMode(padapter);
632 else
633 pwrctrlpriv->LpsIdleCount = 2;
634 pwrctrlpriv->power_mgnt = mode;
635 pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;
636 }
637 } else {
638 ret = -EINVAL;
639 }
640
641 return ret;
642 }
643
rtw_pm_set_ips(struct adapter * padapter,u8 mode)644 int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
645 {
646 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
647
648 if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) {
649 rtw_ips_mode_req(pwrctrlpriv, mode);
650 DBG_88E("%s %s\n", __func__, mode == IPS_NORMAL ? "IPS_NORMAL" : "IPS_LEVEL_2");
651 return 0;
652 } else if (mode == IPS_NONE) {
653 rtw_ips_mode_req(pwrctrlpriv, mode);
654 DBG_88E("%s %s\n", __func__, "IPS_NONE");
655 if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter)))
656 return -EFAULT;
657 } else {
658 return -EINVAL;
659 }
660 return 0;
661 }
662