1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #define _RTW_PWRCTRL_C_
8
9 #include <osdep_service.h>
10 #include <drv_types.h>
11 #include <osdep_intf.h>
12 #include <usb_ops_linux.h>
13 #include <linux/usb.h>
14
rtw_hw_suspend(struct adapter * padapter)15 static int rtw_hw_suspend(struct adapter *padapter)
16 {
17 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
18 struct net_device *pnetdev = padapter->pnetdev;
19
20 if ((!padapter->bup) || (padapter->bDriverStopped) ||
21 (padapter->bSurpriseRemoved)) {
22 DBG_88E("padapter->bup=%d bDriverStopped=%d bSurpriseRemoved = %d\n",
23 padapter->bup, padapter->bDriverStopped,
24 padapter->bSurpriseRemoved);
25 goto error_exit;
26 }
27
28 /* system suspend */
29 LeaveAllPowerSaveMode(padapter);
30
31 DBG_88E("==> %s\n", __func__);
32 mutex_lock(&pwrpriv->mutex_lock);
33 pwrpriv->bips_processing = true;
34 /* s1. */
35 if (pnetdev) {
36 netif_carrier_off(pnetdev);
37 netif_tx_stop_all_queues(pnetdev);
38 }
39
40 /* s2. */
41 rtw_disassoc_cmd(padapter, 500, false);
42
43 /* s2-2. indicate disconnect to os */
44 {
45 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
46
47 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
48 _clr_fwstate_(pmlmepriv, _FW_LINKED);
49
50 led_control_8188eu(padapter, LED_CTL_NO_LINK);
51
52 rtw_os_indicate_disconnect(padapter);
53
54 /* donnot enqueue cmd */
55 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 0);
56 }
57 }
58 /* s2-3. */
59 rtw_free_assoc_resources(padapter);
60
61 /* s2-4. */
62 rtw_free_network_queue(padapter, true);
63 rtw_ips_dev_unload(padapter);
64 pwrpriv->rf_pwrstate = rf_off;
65 pwrpriv->bips_processing = false;
66
67 mutex_unlock(&pwrpriv->mutex_lock);
68
69 return 0;
70
71 error_exit:
72 DBG_88E("%s, failed\n", __func__);
73 return -1;
74 }
75
rtw_hw_resume(struct adapter * padapter)76 static int rtw_hw_resume(struct adapter *padapter)
77 {
78 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
79 struct net_device *pnetdev = padapter->pnetdev;
80
81 /* system resume */
82 DBG_88E("==> %s\n", __func__);
83 mutex_lock(&pwrpriv->mutex_lock);
84 pwrpriv->bips_processing = true;
85 rtw_reset_drv_sw(padapter);
86
87 if (ips_netdrv_open(netdev_priv(pnetdev)) != _SUCCESS) {
88 mutex_unlock(&pwrpriv->mutex_lock);
89 goto error_exit;
90 }
91
92 netif_device_attach(pnetdev);
93 netif_carrier_on(pnetdev);
94
95 if (!netif_queue_stopped(pnetdev))
96 netif_start_queue(pnetdev);
97 else
98 netif_wake_queue(pnetdev);
99
100 pwrpriv->bkeepfwalive = false;
101 pwrpriv->brfoffbyhw = false;
102
103 pwrpriv->rf_pwrstate = rf_on;
104 pwrpriv->bips_processing = false;
105
106 mutex_unlock(&pwrpriv->mutex_lock);
107
108 return 0;
109 error_exit:
110 DBG_88E("%s, Open net dev failed\n", __func__);
111 return -1;
112 }
113
ips_enter(struct adapter * padapter)114 void ips_enter(struct adapter *padapter)
115 {
116 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
117 struct xmit_priv *pxmit_priv = &padapter->xmitpriv;
118
119 if (padapter->registrypriv.mp_mode == 1)
120 return;
121
122 if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
123 pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) {
124 DBG_88E_LEVEL(_drv_info_, "There are some pkts to transmit\n");
125 DBG_88E_LEVEL(_drv_info_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n",
126 pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt);
127 return;
128 }
129
130 mutex_lock(&pwrpriv->mutex_lock);
131
132 pwrpriv->bips_processing = true;
133
134 /* syn ips_mode with request */
135 pwrpriv->ips_mode = pwrpriv->ips_mode_req;
136
137 pwrpriv->ips_enter_cnts++;
138 DBG_88E("==>%s:%d\n", __func__, pwrpriv->ips_enter_cnts);
139 if (rf_off == pwrpriv->change_rfpwrstate) {
140 pwrpriv->bpower_saving = true;
141 DBG_88E_LEVEL(_drv_info_, "nolinked power save enter\n");
142
143 if (pwrpriv->ips_mode == IPS_LEVEL_2)
144 pwrpriv->bkeepfwalive = true;
145
146 rtw_ips_pwr_down(padapter);
147 pwrpriv->rf_pwrstate = rf_off;
148 }
149 pwrpriv->bips_processing = false;
150
151 mutex_unlock(&pwrpriv->mutex_lock);
152 }
153
ips_leave(struct adapter * padapter)154 int ips_leave(struct adapter *padapter)
155 {
156 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
157 struct security_priv *psecuritypriv = &padapter->securitypriv;
158 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
159 int result = _SUCCESS;
160 int keyid;
161
162 mutex_lock(&pwrpriv->mutex_lock);
163
164 if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) {
165 pwrpriv->bips_processing = true;
166 pwrpriv->change_rfpwrstate = rf_on;
167 pwrpriv->ips_leave_cnts++;
168 DBG_88E("==>%s:%d\n", __func__, pwrpriv->ips_leave_cnts);
169
170 result = rtw_ips_pwr_up(padapter);
171 if (result == _SUCCESS)
172 pwrpriv->rf_pwrstate = rf_on;
173
174 DBG_88E_LEVEL(_drv_info_, "nolinked power save leave\n");
175
176 if ((psecuritypriv->dot11PrivacyAlgrthm == _WEP40_) || (psecuritypriv->dot11PrivacyAlgrthm == _WEP104_)) {
177 DBG_88E("==>%s, channel(%d), processing(%x)\n", __func__, padapter->mlmeextpriv.cur_channel, pwrpriv->bips_processing);
178 set_channel_bwmode(padapter, padapter->mlmeextpriv.cur_channel, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
179 for (keyid = 0; keyid < 4; keyid++) {
180 if (pmlmepriv->key_mask & BIT(keyid)) {
181 if (keyid == psecuritypriv->dot11PrivacyKeyIndex)
182 result = rtw_set_key(padapter, psecuritypriv, keyid, 1);
183 else
184 result = rtw_set_key(padapter, psecuritypriv, keyid, 0);
185 }
186 }
187 }
188
189 DBG_88E("==> %s.....LED(0x%08x)...\n", __func__, usb_read32(padapter, 0x4c));
190 pwrpriv->bips_processing = false;
191
192 pwrpriv->bkeepfwalive = false;
193 pwrpriv->bpower_saving = false;
194 }
195
196 mutex_unlock(&pwrpriv->mutex_lock);
197
198 return result;
199 }
200
rtw_pwr_unassociated_idle(struct adapter * adapter)201 static bool rtw_pwr_unassociated_idle(struct adapter *adapter)
202 {
203 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
204
205 if (time_after_eq(adapter->pwrctrlpriv.ips_deny_time, jiffies))
206 return false;
207
208 if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE | WIFI_SITE_MONITOR) ||
209 check_fwstate(pmlmepriv, WIFI_UNDER_LINKING | WIFI_UNDER_WPS) ||
210 check_fwstate(pmlmepriv, WIFI_AP_STATE) ||
211 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE | WIFI_ADHOC_STATE))
212 return false;
213
214 return true;
215 }
216
rtw_ps_processor(struct adapter * padapter)217 void rtw_ps_processor(struct adapter *padapter)
218 {
219 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
220 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
221 enum rt_rf_power_state rfpwrstate;
222
223 pwrpriv->ps_processing = true;
224
225 if (pwrpriv->bips_processing)
226 goto exit;
227
228 if (padapter->pwrctrlpriv.bHWPwrPindetect) {
229 rfpwrstate = RfOnOffDetect(padapter);
230 DBG_88E("@@@@- #2 %s==> rfstate:%s\n", __func__, (rfpwrstate == rf_on) ? "rf_on" : "rf_off");
231
232 if (rfpwrstate != pwrpriv->rf_pwrstate) {
233 if (rfpwrstate == rf_off) {
234 pwrpriv->change_rfpwrstate = rf_off;
235 pwrpriv->brfoffbyhw = true;
236 rtw_hw_suspend(padapter);
237 } else {
238 pwrpriv->change_rfpwrstate = rf_on;
239 rtw_hw_resume(padapter);
240 }
241 DBG_88E("current rf_pwrstate(%s)\n", (pwrpriv->rf_pwrstate == rf_off) ? "rf_off" : "rf_on");
242 }
243 pwrpriv->pwr_state_check_cnts++;
244 }
245
246 if (pwrpriv->ips_mode_req == IPS_NONE)
247 goto exit;
248
249 if (!rtw_pwr_unassociated_idle(padapter))
250 goto exit;
251
252 if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts % 4) == 0)) {
253 DBG_88E("==>%s .fw_state(%x)\n", __func__, get_fwstate(pmlmepriv));
254 pwrpriv->change_rfpwrstate = rf_off;
255
256 ips_enter(padapter);
257 }
258 exit:
259 rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
260 pwrpriv->ps_processing = false;
261 }
262
pwr_state_check_handler(struct timer_list * t)263 static void pwr_state_check_handler(struct timer_list *t)
264 {
265 struct adapter *padapter =
266 from_timer(padapter, t,
267 pwrctrlpriv.pwr_state_check_timer);
268
269 rtw_ps_cmd(padapter);
270 }
271
272 /*
273 *
274 * Parameters
275 * padapter
276 * pslv power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
277 *
278 */
rtw_set_rpwm(struct adapter * padapter,u8 pslv)279 void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
280 {
281 u8 rpwm;
282 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
283
284 pslv = PS_STATE(pslv);
285
286 if (pwrpriv->btcoex_rfon) {
287 if (pslv < PS_STATE_S4)
288 pslv = PS_STATE_S3;
289 }
290
291 if (pwrpriv->rpwm == pslv) {
292 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
293 ("%s: Already set rpwm[0x%02X], new=0x%02X!\n", __func__, pwrpriv->rpwm, pslv));
294 return;
295 }
296
297 if ((padapter->bSurpriseRemoved) ||
298 (!padapter->hw_init_completed)) {
299 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
300 ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
301 __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed));
302
303 pwrpriv->cpwm = PS_STATE_S4;
304
305 return;
306 }
307
308 if (padapter->bDriverStopped) {
309 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
310 ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv));
311
312 if (pslv < PS_STATE_S2) {
313 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
314 ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv));
315 return;
316 }
317 }
318
319 rpwm = pslv | pwrpriv->tog;
320 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
321 ("%s: rpwm=0x%02x cpwm=0x%02x\n", __func__, rpwm, pwrpriv->cpwm));
322
323 pwrpriv->rpwm = pslv;
324
325 rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm));
326
327 pwrpriv->tog += 0x80;
328 pwrpriv->cpwm = pslv;
329 }
330
PS_RDY_CHECK(struct adapter * padapter)331 static u8 PS_RDY_CHECK(struct adapter *padapter)
332 {
333 unsigned long curr_time, delta_time;
334 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
335 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
336
337 curr_time = jiffies;
338 delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp;
339
340 if (delta_time < LPS_DELAY_TIME)
341 return false;
342
343 if ((!check_fwstate(pmlmepriv, _FW_LINKED)) ||
344 (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) ||
345 (check_fwstate(pmlmepriv, WIFI_AP_STATE)) ||
346 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
347 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
348 return false;
349 if (pwrpriv->bInSuspend)
350 return false;
351 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X &&
352 !padapter->securitypriv.binstallGrpkey) {
353 DBG_88E("Group handshake still in progress !!!\n");
354 return false;
355 }
356 return true;
357 }
358
rtw_set_ps_mode(struct adapter * padapter,u8 ps_mode,u8 smart_ps,u8 bcn_ant_mode)359 void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode)
360 {
361 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
362
363 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
364 ("%s: PowerMode=%d Smart_PS=%d\n",
365 __func__, ps_mode, smart_ps));
366
367 if (ps_mode > PM_Card_Disable) {
368 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode));
369 return;
370 }
371
372 if (pwrpriv->pwr_mode == ps_mode) {
373 if (ps_mode == PS_MODE_ACTIVE)
374 return;
375
376 if ((pwrpriv->smart_ps == smart_ps) &&
377 (pwrpriv->bcn_ant_mode == bcn_ant_mode))
378 return;
379 }
380
381 /* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */
382 if (ps_mode == PS_MODE_ACTIVE) {
383 if (PS_RDY_CHECK(padapter)) {
384 DBG_88E("%s: Enter 802.11 power save\n", __func__);
385 pwrpriv->bFwCurrentInPSMode = true;
386 pwrpriv->pwr_mode = ps_mode;
387 pwrpriv->smart_ps = smart_ps;
388 pwrpriv->bcn_ant_mode = bcn_ant_mode;
389 rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
390 rtw_set_rpwm(padapter, PS_STATE_S2);
391 }
392 }
393 }
394
395 /*
396 * Return:
397 * 0: Leave OK
398 * -1: Timeout
399 * -2: Other error
400 */
LPS_RF_ON_check(struct adapter * padapter,u32 delay_ms)401 s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
402 {
403 unsigned long start_time;
404 u8 bAwake = false;
405 s32 err = 0;
406
407 start_time = jiffies;
408 while (1) {
409 rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake);
410 if (bAwake)
411 break;
412
413 if (padapter->bSurpriseRemoved) {
414 err = -2;
415 DBG_88E("%s: device surprise removed!!\n", __func__);
416 break;
417 }
418
419 if (jiffies_to_msecs(jiffies - start_time) > delay_ms) {
420 err = -1;
421 DBG_88E("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
422 break;
423 }
424 msleep(1);
425 }
426
427 return err;
428 }
429
430 /* */
431 /* Description: */
432 /* Enter the leisure power save mode. */
433 /* */
LPS_Enter(struct adapter * padapter)434 void LPS_Enter(struct adapter *padapter)
435 {
436 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
437
438 if (!PS_RDY_CHECK(padapter))
439 return;
440
441 if (pwrpriv->bLeisurePs) {
442 /* Idle for a while if we connect to AP a while ago. */
443 if (pwrpriv->LpsIdleCount >= 2) { /* 4 Sec */
444 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
445 pwrpriv->bpower_saving = true;
446 DBG_88E("%s smart_ps:%d\n", __func__, pwrpriv->smart_ps);
447 /* For Tenda W311R IOT issue */
448 rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, pwrpriv->smart_ps, 0);
449 }
450 } else {
451 pwrpriv->LpsIdleCount++;
452 }
453 }
454 }
455
456 #define LPS_LEAVE_TIMEOUT_MS 100
457
458 /* Description: */
459 /* Leave the leisure power save mode. */
LPS_Leave(struct adapter * padapter)460 void LPS_Leave(struct adapter *padapter)
461 {
462 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
463
464 if (pwrpriv->bLeisurePs) {
465 if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
466 rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0);
467
468 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
469 LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS);
470 }
471 }
472
473 pwrpriv->bpower_saving = false;
474 }
475
476 /* */
477 /* Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
478 /* Move code to function by tynli. 2010.03.26. */
479 /* */
LeaveAllPowerSaveMode(struct adapter * Adapter)480 void LeaveAllPowerSaveMode(struct adapter *Adapter)
481 {
482 struct mlme_priv *pmlmepriv = &Adapter->mlmepriv;
483
484 if (check_fwstate(pmlmepriv, _FW_LINKED))
485 rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, 0);
486 }
487
rtw_init_pwrctrl_priv(struct adapter * padapter)488 void rtw_init_pwrctrl_priv(struct adapter *padapter)
489 {
490 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
491
492 mutex_init(&pwrctrlpriv->mutex_lock);
493 pwrctrlpriv->rf_pwrstate = rf_on;
494 pwrctrlpriv->ips_enter_cnts = 0;
495 pwrctrlpriv->ips_leave_cnts = 0;
496 pwrctrlpriv->bips_processing = false;
497
498 pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
499 pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
500
501 pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
502 pwrctrlpriv->pwr_state_check_cnts = 0;
503 pwrctrlpriv->bInternalAutoSuspend = false;
504 pwrctrlpriv->bInSuspend = false;
505 pwrctrlpriv->bkeepfwalive = false;
506
507 pwrctrlpriv->LpsIdleCount = 0;
508 if (padapter->registrypriv.mp_mode == 1)
509 pwrctrlpriv->power_mgnt = PS_MODE_ACTIVE;
510 else
511 pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/* PS_MODE_MIN; */
512 pwrctrlpriv->bLeisurePs = (pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE);
513
514 pwrctrlpriv->bFwCurrentInPSMode = false;
515
516 pwrctrlpriv->rpwm = 0;
517 pwrctrlpriv->cpwm = PS_STATE_S4;
518
519 pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
520 pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
521 pwrctrlpriv->bcn_ant_mode = 0;
522
523 pwrctrlpriv->tog = 0x80;
524
525 pwrctrlpriv->btcoex_rfon = false;
526
527 timer_setup(&pwrctrlpriv->pwr_state_check_timer,
528 pwr_state_check_handler, 0);
529 }
530
531 /*
532 * rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
533 * @adapter: pointer to struct adapter structure
534 * @ips_deffer_ms: the ms will prevent from falling into IPS after wakeup
535 * Return _SUCCESS or _FAIL
536 */
537
_rtw_pwr_wakeup(struct adapter * padapter,u32 ips_deffer_ms,const char * caller)538 int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *caller)
539 {
540 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
541 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
542 unsigned long expires;
543 unsigned long start;
544 int ret = _SUCCESS;
545
546 expires = jiffies + msecs_to_jiffies(ips_deffer_ms);
547 if (time_before(pwrpriv->ips_deny_time, expires))
548 pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
549
550 start = jiffies;
551 if (pwrpriv->ps_processing) {
552 DBG_88E("%s wait ps_processing...\n", __func__);
553 while (pwrpriv->ps_processing &&
554 jiffies_to_msecs(jiffies - start) <= 3000)
555 udelay(1500);
556 if (pwrpriv->ps_processing)
557 DBG_88E("%s wait ps_processing timeout\n", __func__);
558 else
559 DBG_88E("%s wait ps_processing done\n", __func__);
560 }
561
562 /* System suspend is not allowed to wakeup */
563 if ((!pwrpriv->bInternalAutoSuspend) && (pwrpriv->bInSuspend)) {
564 ret = _FAIL;
565 goto exit;
566 }
567
568 /* block??? */
569 if ((pwrpriv->bInternalAutoSuspend) && (padapter->net_closed)) {
570 ret = _FAIL;
571 goto exit;
572 }
573
574 /* I think this should be check in IPS, LPS, autosuspend functions... */
575 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
576 ret = _SUCCESS;
577 goto exit;
578 }
579 if (rf_off == pwrpriv->rf_pwrstate) {
580 DBG_88E("%s call ips_leave....\n", __func__);
581 if (ips_leave(padapter) == _FAIL) {
582 DBG_88E("======> ips_leave fail.............\n");
583 ret = _FAIL;
584 goto exit;
585 }
586 }
587
588 /* TODO: the following checking need to be merged... */
589 if (padapter->bDriverStopped || !padapter->bup ||
590 !padapter->hw_init_completed) {
591 DBG_88E("%s: bDriverStopped=%d, bup=%d, hw_init_completed =%u\n"
592 , caller
593 , padapter->bDriverStopped
594 , padapter->bup
595 , padapter->hw_init_completed);
596 ret = false;
597 goto exit;
598 }
599
600 exit:
601 expires = jiffies + msecs_to_jiffies(ips_deffer_ms);
602 if (time_before(pwrpriv->ips_deny_time, expires))
603 pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
604 return ret;
605 }
606
rtw_pm_set_lps(struct adapter * padapter,u8 mode)607 int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
608 {
609 int ret = 0;
610 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
611
612 if (mode < PS_MODE_NUM) {
613 if (pwrctrlpriv->power_mgnt != mode) {
614 if (mode == PS_MODE_ACTIVE)
615 LeaveAllPowerSaveMode(padapter);
616 else
617 pwrctrlpriv->LpsIdleCount = 2;
618 pwrctrlpriv->power_mgnt = mode;
619 pwrctrlpriv->bLeisurePs = (pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE);
620 }
621 } else {
622 ret = -EINVAL;
623 }
624
625 return ret;
626 }
627
rtw_pm_set_ips(struct adapter * padapter,u8 mode)628 int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
629 {
630 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
631
632 if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) {
633 rtw_ips_mode_req(pwrctrlpriv, mode);
634 DBG_88E("%s %s\n", __func__, mode == IPS_NORMAL ? "IPS_NORMAL" : "IPS_LEVEL_2");
635 return 0;
636 } else if (mode == IPS_NONE) {
637 rtw_ips_mode_req(pwrctrlpriv, mode);
638 DBG_88E("%s %s\n", __func__, "IPS_NONE");
639 if ((padapter->bSurpriseRemoved == 0) && (rtw_pwr_wakeup(padapter) == _FAIL))
640 return -EFAULT;
641 } else {
642 return -EINVAL;
643 }
644 return 0;
645 }
646