1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
4 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
6 ******************************************************************************/
7 #define _RTW_PWRCTRL_C_
10 #include <rtw_debug.h>
12 #include <linux/jiffies.h>
15 void _ips_enter(struct adapter *padapter)
17 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
19 pwrpriv->bips_processing = true;
21 /* syn ips_mode with request */
22 pwrpriv->ips_mode = pwrpriv->ips_mode_req;
24 pwrpriv->ips_enter_cnts++;
25 DBG_871X("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts);
27 if (rf_off == pwrpriv->change_rfpwrstate) {
28 pwrpriv->bpower_saving = true;
29 DBG_871X("nolinked power save enter\n");
31 if (pwrpriv->ips_mode == IPS_LEVEL_2)
32 pwrpriv->bkeepfwalive = true;
34 rtw_ips_pwr_down(padapter);
35 pwrpriv->rf_pwrstate = rf_off;
37 pwrpriv->bips_processing = false;
41 void ips_enter(struct adapter *padapter)
43 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
46 hal_btcoex_IpsNotify(padapter, pwrpriv->ips_mode_req);
48 mutex_lock(&pwrpriv->lock);
50 mutex_unlock(&pwrpriv->lock);
53 int _ips_leave(struct adapter *padapter)
55 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
56 int result = _SUCCESS;
58 if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) {
59 pwrpriv->bips_processing = true;
60 pwrpriv->change_rfpwrstate = rf_on;
61 pwrpriv->ips_leave_cnts++;
62 DBG_871X("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts);
64 result = rtw_ips_pwr_up(padapter);
65 if (result == _SUCCESS) {
66 pwrpriv->rf_pwrstate = rf_on;
68 DBG_871X("nolinked power save leave\n");
70 DBG_871X("==> ips_leave.....LED(0x%08x)...\n", rtw_read32(padapter, 0x4c));
71 pwrpriv->bips_processing = false;
73 pwrpriv->bkeepfwalive = false;
74 pwrpriv->bpower_saving = false;
80 int ips_leave(struct adapter *padapter)
82 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
85 if (!is_primary_adapter(padapter))
88 mutex_lock(&pwrpriv->lock);
89 ret = _ips_leave(padapter);
90 mutex_unlock(&pwrpriv->lock);
93 hal_btcoex_IpsNotify(padapter, IPS_NONE);
98 static bool rtw_pwr_unassociated_idle(struct adapter *adapter)
100 struct adapter *buddy = adapter->pbuddy_adapter;
101 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
102 struct xmit_priv *pxmit_priv = &adapter->xmitpriv;
106 if (adapter_to_pwrctl(adapter)->bpower_saving == true) {
107 /* DBG_871X("%s: already in LPS or IPS mode\n", __func__); */
111 if (time_before(jiffies, adapter_to_pwrctl(adapter)->ips_deny_time)) {
112 /* DBG_871X("%s ips_deny_time\n", __func__); */
116 if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR)
117 || check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
118 || check_fwstate(pmlmepriv, WIFI_AP_STATE)
119 || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
123 /* consider buddy, if exist */
125 struct mlme_priv *b_pmlmepriv = &(buddy->mlmepriv);
127 if (check_fwstate(b_pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR)
128 || check_fwstate(b_pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
129 || check_fwstate(b_pmlmepriv, WIFI_AP_STATE)
130 || check_fwstate(b_pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
135 if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
136 pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) {
137 DBG_871X_LEVEL(_drv_always_, "There are some pkts to transmit\n");
138 DBG_871X_LEVEL(_drv_always_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n",
139 pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt);
152 *rtw_ps_processor() doesn't handle LPS.
154 void rtw_ps_processor(struct adapter *padapter)
156 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
157 struct dvobj_priv *psdpriv = padapter->dvobj;
158 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
161 mutex_lock(&adapter_to_pwrctl(padapter)->lock);
162 ps_deny = rtw_ps_deny_get(padapter);
163 mutex_unlock(&adapter_to_pwrctl(padapter)->lock);
165 DBG_871X(FUNC_ADPT_FMT ": ps_deny = 0x%08X, skip power save!\n",
166 FUNC_ADPT_ARG(padapter), ps_deny);
170 if (pwrpriv->bInSuspend == true) {/* system suspend or autosuspend */
171 pdbgpriv->dbg_ps_insuspend_cnt++;
172 DBG_871X("%s, pwrpriv->bInSuspend == true ignore this process\n", __func__);
176 pwrpriv->ps_processing = true;
178 if (pwrpriv->ips_mode_req == IPS_NONE)
181 if (!rtw_pwr_unassociated_idle(padapter))
184 if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0)) {
185 DBG_871X("==>%s\n", __func__);
186 pwrpriv->change_rfpwrstate = rf_off;
192 pwrpriv->ps_processing = false;
196 static void pwr_state_check_handler(struct timer_list *t)
198 struct pwrctrl_priv *pwrctrlpriv =
199 from_timer(pwrctrlpriv, t, pwr_state_check_timer);
200 struct adapter *padapter = pwrctrlpriv->adapter;
202 rtw_ps_cmd(padapter);
205 void traffic_check_for_leave_lps(struct adapter *padapter, u8 tx, u32 tx_packets)
207 static unsigned long start_time;
209 u8 bLeaveLPS = false;
210 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
214 if (tx) { /* from tx */
215 xmit_cnt += tx_packets;
218 start_time = jiffies;
220 if (jiffies_to_msecs(jiffies - start_time) > 2000) { /* 2 sec == watch dog timer */
222 if ((adapter_to_pwrctl(padapter)->bLeisurePs)
223 && (adapter_to_pwrctl(padapter)->pwr_mode != PS_MODE_ACTIVE)
224 && (hal_btcoex_IsBtControlLps(padapter) == false)
226 DBG_871X("leave lps via Tx = %d\n", xmit_cnt);
231 start_time = jiffies;
235 } else { /* from rx path */
236 if (pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod > 4/*2*/) {
237 if ((adapter_to_pwrctl(padapter)->bLeisurePs)
238 && (adapter_to_pwrctl(padapter)->pwr_mode != PS_MODE_ACTIVE)
239 && (hal_btcoex_IsBtControlLps(padapter) == false)
241 DBG_871X("leave lps via Rx = %d\n", pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod);
248 /* DBG_871X("leave lps via %s, Tx = %d, Rx = %d\n", tx?"Tx":"Rx", pmlmepriv->LinkDetectInfo.NumTxOkInPeriod, pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod); */
249 /* rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1); */
250 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, tx?0:1);
255 *This function MUST be called under power lock protect
259 *pslv power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
262 void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
265 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
268 pslv = PS_STATE(pslv);
270 if (pwrpriv->brpwmtimeout == true) {
271 DBG_871X("%s: RPWM timeout, force to set RPWM(0x%02X) again!\n", __func__, pslv);
273 if ((pwrpriv->rpwm == pslv)
274 || ((pwrpriv->rpwm >= PS_STATE_S2) && (pslv >= PS_STATE_S2))) {
275 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
276 ("%s: Already set rpwm[0x%02X], new = 0x%02X!\n", __func__, pwrpriv->rpwm, pslv));
281 if ((padapter->bSurpriseRemoved == true) ||
282 (padapter->hw_init_completed == false)) {
283 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
284 ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
285 __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed));
287 pwrpriv->cpwm = PS_STATE_S4;
292 if (padapter->bDriverStopped == true) {
293 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
294 ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv));
296 if (pslv < PS_STATE_S2) {
297 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
298 ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv));
303 rpwm = pslv | pwrpriv->tog;
304 /* only when from PS_STATE S0/S1 to S2 and higher needs ACK */
305 if ((pwrpriv->cpwm < PS_STATE_S2) && (pslv >= PS_STATE_S2))
307 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
308 ("rtw_set_rpwm: rpwm = 0x%02x cpwm = 0x%02x\n", rpwm, pwrpriv->cpwm));
310 pwrpriv->rpwm = pslv;
314 rtw_hal_get_hwreg(padapter, HW_VAR_CPWM, &cpwm_orig);
317 _set_timer(&pwrpriv->pwr_rpwm_timer, LPS_RPWM_WAIT_MS);
318 rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm));
320 pwrpriv->tog += 0x80;
322 /* No LPS 32K, No Ack */
324 unsigned long start_time;
328 start_time = jiffies;
334 rtw_hal_get_hwreg(padapter, HW_VAR_CPWM, &cpwm_now);
335 if ((cpwm_orig ^ cpwm_now) & 0x80) {
336 pwrpriv->cpwm = PS_STATE_S4;
337 pwrpriv->cpwm_tog = cpwm_now & PS_TOGGLE;
341 if (jiffies_to_msecs(jiffies - start_time) > LPS_RPWM_WAIT_MS) {
342 DBG_871X("%s: polling cpwm timeout! poll_cnt =%d, cpwm_orig =%02x, cpwm_now =%02x\n", __func__, poll_cnt, cpwm_orig, cpwm_now);
343 _set_timer(&pwrpriv->pwr_rpwm_timer, 1);
348 pwrpriv->cpwm = pslv;
351 static u8 PS_RDY_CHECK(struct adapter *padapter)
353 unsigned long curr_time, delta_time;
354 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
355 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
357 #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
358 if (true == pwrpriv->bInSuspend && pwrpriv->wowlan_mode)
360 else if (true == pwrpriv->bInSuspend && pwrpriv->wowlan_ap_mode)
362 else if (true == pwrpriv->bInSuspend)
365 if (true == pwrpriv->bInSuspend)
371 delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp;
373 if (delta_time < LPS_DELAY_TIME)
376 if (check_fwstate(pmlmepriv, WIFI_SITE_MONITOR)
377 || check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
378 || check_fwstate(pmlmepriv, WIFI_AP_STATE)
379 || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
380 || rtw_is_scan_deny(padapter)
384 if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) {
385 DBG_871X("Group handshake still in progress !!!\n");
389 if (!rtw_cfg80211_pwr_mgmt(padapter))
395 void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode, const char *msg)
397 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
398 #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
399 struct debug_priv *pdbgpriv = &padapter->dvobj->drv_dbg;
402 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
403 ("%s: PowerMode =%d Smart_PS =%d\n",
404 __func__, ps_mode, smart_ps));
406 if (ps_mode > PM_Card_Disable) {
407 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode));
411 if (pwrpriv->pwr_mode == ps_mode)
412 if (PS_MODE_ACTIVE == ps_mode)
416 mutex_lock(&pwrpriv->lock);
418 /* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */
419 if (ps_mode == PS_MODE_ACTIVE) {
421 && (((hal_btcoex_IsBtControlLps(padapter) == false)
423 || ((hal_btcoex_IsBtControlLps(padapter) == true)
424 && (hal_btcoex_IsLpsOn(padapter) == false))
427 DBG_871X(FUNC_ADPT_FMT" Leave 802.11 power save - %s\n",
428 FUNC_ADPT_ARG(padapter), msg);
430 pwrpriv->pwr_mode = ps_mode;
431 rtw_set_rpwm(padapter, PS_STATE_S4);
433 #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
434 if (pwrpriv->wowlan_mode == true ||
435 pwrpriv->wowlan_ap_mode == true) {
436 unsigned long start_time;
440 start_time = jiffies;
442 rtw_hal_get_hwreg(padapter, HW_VAR_SYS_CLKR, &val8);
443 if (!(val8 & BIT(4))) { /* 0x08 bit4 = 1 --> in 32k, bit4 = 0 --> leave 32k */
444 pwrpriv->cpwm = PS_STATE_S4;
447 if (jiffies_to_msecs(jiffies - start_time) > delay_ms) {
448 DBG_871X("%s: Wait for FW 32K leave more than %u ms!!!\n",
450 pdbgpriv->dbg_wow_leave_ps_fail_cnt++;
457 rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
458 pwrpriv->bFwCurrentInPSMode = false;
460 hal_btcoex_LpsNotify(padapter, ps_mode);
463 if ((PS_RDY_CHECK(padapter) && check_fwstate(&padapter->mlmepriv, WIFI_ASOC_STATE))
464 || ((hal_btcoex_IsBtControlLps(padapter) == true)
465 && (hal_btcoex_IsLpsOn(padapter) == true))
469 DBG_871X(FUNC_ADPT_FMT" Enter 802.11 power save - %s\n",
470 FUNC_ADPT_ARG(padapter), msg);
472 hal_btcoex_LpsNotify(padapter, ps_mode);
474 pwrpriv->bFwCurrentInPSMode = true;
475 pwrpriv->pwr_mode = ps_mode;
476 pwrpriv->smart_ps = smart_ps;
477 pwrpriv->bcn_ant_mode = bcn_ant_mode;
478 rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
481 if (pwrpriv->alives == 0)
484 if ((hal_btcoex_IsBtDisabled(padapter) == false)
485 && (hal_btcoex_IsBtControlLps(padapter) == true)) {
488 val8 = hal_btcoex_LpsVal(padapter);
493 rtw_set_rpwm(padapter, pslv);
497 mutex_unlock(&pwrpriv->lock);
506 s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
508 unsigned long start_time;
513 start_time = jiffies;
515 rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake);
519 if (true == padapter->bSurpriseRemoved) {
521 DBG_871X("%s: device surprise removed!!\n", __func__);
525 if (jiffies_to_msecs(jiffies - start_time) > delay_ms) {
527 DBG_871X("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
538 /* Enter the leisure power save mode. */
540 void LPS_Enter(struct adapter *padapter, const char *msg)
542 struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
543 struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj);
544 int n_assoc_iface = 0;
547 if (hal_btcoex_IsBtControlLps(padapter) == true)
550 /* Skip lps enter request if number of assocated adapters is not 1 */
551 if (check_fwstate(&(dvobj->padapters->mlmepriv), WIFI_ASOC_STATE))
553 if (n_assoc_iface != 1)
556 /* Skip lps enter request for adapter not port0 */
557 if (get_iface_type(padapter) != IFACE_PORT0)
560 if (PS_RDY_CHECK(dvobj->padapters) == false)
563 if (pwrpriv->bLeisurePs) {
564 /* Idle for a while if we connect to AP a while ago. */
565 if (pwrpriv->LpsIdleCount >= 2) { /* 4 Sec */
566 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
567 sprintf(buf, "WIFI-%s", msg);
568 pwrpriv->bpower_saving = true;
569 rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, padapter->registrypriv.smart_ps, 0, buf);
572 pwrpriv->LpsIdleCount++;
575 /* DBG_871X("-LeisurePSEnter\n"); */
580 /* Leave the leisure power save mode. */
582 void LPS_Leave(struct adapter *padapter, const char *msg)
584 #define LPS_LEAVE_TIMEOUT_MS 100
586 struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
587 struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj);
590 /* DBG_871X("+LeisurePSLeave\n"); */
592 if (hal_btcoex_IsBtControlLps(padapter) == true)
595 if (pwrpriv->bLeisurePs) {
596 if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
597 sprintf(buf, "WIFI-%s", msg);
598 rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0, buf);
600 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
601 LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS);
605 pwrpriv->bpower_saving = false;
606 /* DBG_871X("-LeisurePSLeave\n"); */
610 void LeaveAllPowerSaveModeDirect(struct adapter *Adapter)
612 struct adapter *pri_padapter = GET_PRIMARY_ADAPTER(Adapter);
613 struct mlme_priv *pmlmepriv = &(Adapter->mlmepriv);
614 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(Adapter);
616 DBG_871X("%s.....\n", __func__);
618 if (true == Adapter->bSurpriseRemoved) {
619 DBG_871X(FUNC_ADPT_FMT ": bSurpriseRemoved =%d Skip!\n",
620 FUNC_ADPT_ARG(Adapter), Adapter->bSurpriseRemoved);
624 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true)) { /* connect */
626 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
627 DBG_871X("%s: Driver Already Leave LPS\n", __func__);
631 mutex_lock(&pwrpriv->lock);
633 rtw_set_rpwm(Adapter, PS_STATE_S4);
635 mutex_unlock(&pwrpriv->lock);
637 rtw_lps_ctrl_wk_cmd(pri_padapter, LPS_CTRL_LEAVE, 0);
639 if (pwrpriv->rf_pwrstate == rf_off)
640 if (false == ips_leave(pri_padapter))
641 DBG_871X("======> ips_leave fail.............\n");
646 /* Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
647 /* Move code to function by tynli. 2010.03.26. */
649 void LeaveAllPowerSaveMode(struct adapter *Adapter)
651 struct dvobj_priv *dvobj = adapter_to_dvobj(Adapter);
653 int n_assoc_iface = 0;
656 DBG_871X(FUNC_ADPT_FMT ": bup =%d Skip!\n",
657 FUNC_ADPT_ARG(Adapter), Adapter->bup);
661 if (Adapter->bSurpriseRemoved) {
662 DBG_871X(FUNC_ADPT_FMT ": bSurpriseRemoved =%d Skip!\n",
663 FUNC_ADPT_ARG(Adapter), Adapter->bSurpriseRemoved);
667 if (check_fwstate(&(dvobj->padapters->mlmepriv), WIFI_ASOC_STATE))
670 if (n_assoc_iface) { /* connect */
673 rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue);
675 LPS_Leave_check(Adapter);
677 if (adapter_to_pwrctl(Adapter)->rf_pwrstate == rf_off) {
678 if (false == ips_leave(Adapter))
679 DBG_871X("======> ips_leave fail.............\n");
684 void LPS_Leave_check(
685 struct adapter *padapter)
687 struct pwrctrl_priv *pwrpriv;
688 unsigned long start_time;
691 pwrpriv = adapter_to_pwrctl(padapter);
694 start_time = jiffies;
699 mutex_lock(&pwrpriv->lock);
701 if ((padapter->bSurpriseRemoved == true)
702 || (padapter->hw_init_completed == false)
703 || (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
707 mutex_unlock(&pwrpriv->lock);
712 if (jiffies_to_msecs(jiffies - start_time) > 100) {
713 DBG_871X("Wait for cpwm event than 100 ms!!!\n");
721 * Caller:ISR handler...
723 * This will be called when CPWM interrupt is up.
725 * using to update cpwn of drv; and drv willl make a decision to up or down pwr level
728 struct adapter *padapter,
729 struct reportpwrstate_parm *preportpwrstate)
731 struct pwrctrl_priv *pwrpriv;
733 pwrpriv = adapter_to_pwrctl(padapter);
735 mutex_lock(&pwrpriv->lock);
737 if (pwrpriv->rpwm < PS_STATE_S2) {
738 DBG_871X("%s: Redundant CPWM Int. RPWM = 0x%02X CPWM = 0x%02x\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
742 pwrpriv->cpwm = PS_STATE(preportpwrstate->state);
743 pwrpriv->cpwm_tog = preportpwrstate->state & PS_TOGGLE;
745 if (pwrpriv->cpwm >= PS_STATE_S2) {
746 if (pwrpriv->alives & CMD_ALIVE)
747 complete(&padapter->cmdpriv.cmd_queue_comp);
749 if (pwrpriv->alives & XMIT_ALIVE)
750 complete(&padapter->xmitpriv.xmit_comp);
754 mutex_unlock(&pwrpriv->lock);
756 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
757 ("cpwm_int_hdl: cpwm = 0x%02x\n", pwrpriv->cpwm));
760 static void cpwm_event_callback(struct work_struct *work)
762 struct pwrctrl_priv *pwrpriv = container_of(work, struct pwrctrl_priv, cpwm_event);
763 struct dvobj_priv *dvobj = pwrctl_to_dvobj(pwrpriv);
764 struct adapter *adapter = dvobj->if1;
765 struct reportpwrstate_parm report;
767 /* DBG_871X("%s\n", __func__); */
769 report.state = PS_STATE_S2;
770 cpwm_int_hdl(adapter, &report);
773 static void rpwmtimeout_workitem_callback(struct work_struct *work)
775 struct adapter *padapter;
776 struct dvobj_priv *dvobj;
777 struct pwrctrl_priv *pwrpriv;
780 pwrpriv = container_of(work, struct pwrctrl_priv, rpwmtimeoutwi);
781 dvobj = pwrctl_to_dvobj(pwrpriv);
782 padapter = dvobj->if1;
783 /* DBG_871X("+%s: rpwm = 0x%02X cpwm = 0x%02X\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm); */
785 mutex_lock(&pwrpriv->lock);
786 if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
787 DBG_871X("%s: rpwm = 0x%02X cpwm = 0x%02X CPWM done!\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
790 mutex_unlock(&pwrpriv->lock);
792 if (rtw_read8(padapter, 0x100) != 0xEA) {
793 struct reportpwrstate_parm report;
795 report.state = PS_STATE_S2;
796 DBG_871X("\n%s: FW already leave 32K!\n\n", __func__);
797 cpwm_int_hdl(padapter, &report);
802 mutex_lock(&pwrpriv->lock);
804 if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
805 DBG_871X("%s: cpwm =%d, nothing to do!\n", __func__, pwrpriv->cpwm);
808 pwrpriv->brpwmtimeout = true;
809 rtw_set_rpwm(padapter, pwrpriv->rpwm);
810 pwrpriv->brpwmtimeout = false;
813 mutex_unlock(&pwrpriv->lock);
817 * This function is a timer handler, can't do any IO in it.
819 static void pwr_rpwm_timeout_handler(struct timer_list *t)
821 struct pwrctrl_priv *pwrpriv = from_timer(pwrpriv, t, pwr_rpwm_timer);
823 DBG_871X("+%s: rpwm = 0x%02X cpwm = 0x%02X\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
825 if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
826 DBG_871X("+%s: cpwm =%d, nothing to do!\n", __func__, pwrpriv->cpwm);
830 _set_workitem(&pwrpriv->rpwmtimeoutwi);
833 static inline void register_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag)
835 pwrctrl->alives |= tag;
838 static inline void unregister_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag)
840 pwrctrl->alives &= ~tag;
846 *Check if the fw_pwrstate is okay for I/O.
847 *If not (cpwm is less than S2), then the sub-routine
848 *will raise the cpwm to be greater than or equal to S2.
850 *Calling Context: Passive
853 * 1. this function will request pwrctrl->lock
856 *_SUCCESS hardware is ready for I/O
857 *_FAIL can't I/O right now
859 s32 rtw_register_task_alive(struct adapter *padapter, u32 task)
862 struct pwrctrl_priv *pwrctrl;
866 pwrctrl = adapter_to_pwrctl(padapter);
869 mutex_lock(&pwrctrl->lock);
871 register_task_alive(pwrctrl, task);
873 if (pwrctrl->bFwCurrentInPSMode == true) {
874 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
875 ("%s: task = 0x%x cpwm = 0x%02x alives = 0x%08x\n",
876 __func__, task, pwrctrl->cpwm, pwrctrl->alives));
878 if (pwrctrl->cpwm < pslv) {
879 if (pwrctrl->cpwm < PS_STATE_S2)
881 if (pwrctrl->rpwm < pslv)
882 rtw_set_rpwm(padapter, pslv);
886 mutex_unlock(&pwrctrl->lock);
889 if (pwrctrl->cpwm >= PS_STATE_S2)
897 *If task is done, call this func. to power down firmware again.
900 * 1. this function will request pwrctrl->lock
905 void rtw_unregister_task_alive(struct adapter *padapter, u32 task)
907 struct pwrctrl_priv *pwrctrl;
910 pwrctrl = adapter_to_pwrctl(padapter);
913 if ((hal_btcoex_IsBtDisabled(padapter) == false)
914 && (hal_btcoex_IsBtControlLps(padapter) == true)) {
917 val8 = hal_btcoex_LpsVal(padapter);
922 mutex_lock(&pwrctrl->lock);
924 unregister_task_alive(pwrctrl, task);
926 if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE)
927 && (pwrctrl->bFwCurrentInPSMode == true)) {
928 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
929 ("%s: cpwm = 0x%02x alives = 0x%08x\n",
930 __func__, pwrctrl->cpwm, pwrctrl->alives));
932 if (pwrctrl->cpwm > pslv)
933 if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0))
934 rtw_set_rpwm(padapter, pslv);
938 mutex_unlock(&pwrctrl->lock);
942 * Caller: rtw_xmit_thread
944 * Check if the fw_pwrstate is okay for xmit.
945 * If not (cpwm is less than S3), then the sub-routine
946 * will raise the cpwm to be greater than or equal to S3.
948 * Calling Context: Passive
951 * _SUCCESS rtw_xmit_thread can write fifo/txcmd afterwards.
952 * _FAIL rtw_xmit_thread can not do anything.
954 s32 rtw_register_tx_alive(struct adapter *padapter)
957 struct pwrctrl_priv *pwrctrl;
961 pwrctrl = adapter_to_pwrctl(padapter);
964 mutex_lock(&pwrctrl->lock);
966 register_task_alive(pwrctrl, XMIT_ALIVE);
968 if (pwrctrl->bFwCurrentInPSMode == true) {
969 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
970 ("rtw_register_tx_alive: cpwm = 0x%02x alives = 0x%08x\n",
971 pwrctrl->cpwm, pwrctrl->alives));
973 if (pwrctrl->cpwm < pslv) {
974 if (pwrctrl->cpwm < PS_STATE_S2)
976 if (pwrctrl->rpwm < pslv)
977 rtw_set_rpwm(padapter, pslv);
981 mutex_unlock(&pwrctrl->lock);
984 if (pwrctrl->cpwm >= PS_STATE_S2)
991 * Caller: rtw_cmd_thread
993 * Check if the fw_pwrstate is okay for issuing cmd.
994 * If not (cpwm should be is less than S2), then the sub-routine
995 * will raise the cpwm to be greater than or equal to S2.
997 * Calling Context: Passive
1000 *_SUCCESS rtw_cmd_thread can issue cmds to firmware afterwards.
1001 *_FAIL rtw_cmd_thread can not do anything.
1003 s32 rtw_register_cmd_alive(struct adapter *padapter)
1006 struct pwrctrl_priv *pwrctrl;
1010 pwrctrl = adapter_to_pwrctl(padapter);
1013 mutex_lock(&pwrctrl->lock);
1015 register_task_alive(pwrctrl, CMD_ALIVE);
1017 if (pwrctrl->bFwCurrentInPSMode == true) {
1018 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_info_,
1019 ("rtw_register_cmd_alive: cpwm = 0x%02x alives = 0x%08x\n",
1020 pwrctrl->cpwm, pwrctrl->alives));
1022 if (pwrctrl->cpwm < pslv) {
1023 if (pwrctrl->cpwm < PS_STATE_S2)
1025 if (pwrctrl->rpwm < pslv)
1026 rtw_set_rpwm(padapter, pslv);
1030 mutex_unlock(&pwrctrl->lock);
1033 if (pwrctrl->cpwm >= PS_STATE_S2)
1043 * No more pkts for TX,
1044 * Then driver shall call this fun. to power down firmware again.
1046 void rtw_unregister_tx_alive(struct adapter *padapter)
1048 struct pwrctrl_priv *pwrctrl;
1051 pwrctrl = adapter_to_pwrctl(padapter);
1054 if ((hal_btcoex_IsBtDisabled(padapter) == false)
1055 && (hal_btcoex_IsBtControlLps(padapter) == true)) {
1058 val8 = hal_btcoex_LpsVal(padapter);
1063 mutex_lock(&pwrctrl->lock);
1065 unregister_task_alive(pwrctrl, XMIT_ALIVE);
1067 if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE)
1068 && (pwrctrl->bFwCurrentInPSMode == true)) {
1069 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
1070 ("%s: cpwm = 0x%02x alives = 0x%08x\n",
1071 __func__, pwrctrl->cpwm, pwrctrl->alives));
1073 if (pwrctrl->cpwm > pslv)
1074 if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0))
1075 rtw_set_rpwm(padapter, pslv);
1078 mutex_unlock(&pwrctrl->lock);
1084 * If all commands have been done,
1085 * and no more command to do,
1086 * then driver shall call this fun. to power down firmware again.
1088 void rtw_unregister_cmd_alive(struct adapter *padapter)
1090 struct pwrctrl_priv *pwrctrl;
1093 pwrctrl = adapter_to_pwrctl(padapter);
1096 if ((hal_btcoex_IsBtDisabled(padapter) == false)
1097 && (hal_btcoex_IsBtControlLps(padapter) == true)) {
1100 val8 = hal_btcoex_LpsVal(padapter);
1105 mutex_lock(&pwrctrl->lock);
1107 unregister_task_alive(pwrctrl, CMD_ALIVE);
1109 if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE)
1110 && (pwrctrl->bFwCurrentInPSMode == true)) {
1111 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_info_,
1112 ("%s: cpwm = 0x%02x alives = 0x%08x\n",
1113 __func__, pwrctrl->cpwm, pwrctrl->alives));
1115 if (pwrctrl->cpwm > pslv) {
1116 if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0))
1117 rtw_set_rpwm(padapter, pslv);
1121 mutex_unlock(&pwrctrl->lock);
1124 void rtw_init_pwrctrl_priv(struct adapter *padapter)
1126 struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
1128 mutex_init(&pwrctrlpriv->lock);
1129 pwrctrlpriv->rf_pwrstate = rf_on;
1130 pwrctrlpriv->ips_enter_cnts = 0;
1131 pwrctrlpriv->ips_leave_cnts = 0;
1132 pwrctrlpriv->bips_processing = false;
1134 pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
1135 pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
1137 pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
1138 pwrctrlpriv->pwr_state_check_cnts = 0;
1139 pwrctrlpriv->bInternalAutoSuspend = false;
1140 pwrctrlpriv->bInSuspend = false;
1141 pwrctrlpriv->bkeepfwalive = false;
1143 pwrctrlpriv->LpsIdleCount = 0;
1144 pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/* PS_MODE_MIN; */
1145 pwrctrlpriv->bLeisurePs = pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE;
1147 pwrctrlpriv->bFwCurrentInPSMode = false;
1149 pwrctrlpriv->rpwm = 0;
1150 pwrctrlpriv->cpwm = PS_STATE_S4;
1152 pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
1153 pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
1154 pwrctrlpriv->bcn_ant_mode = 0;
1155 pwrctrlpriv->dtim = 0;
1157 pwrctrlpriv->tog = 0x80;
1159 rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&pwrctrlpriv->rpwm));
1161 _init_workitem(&pwrctrlpriv->cpwm_event, cpwm_event_callback, NULL);
1163 pwrctrlpriv->brpwmtimeout = false;
1164 pwrctrlpriv->adapter = padapter;
1165 _init_workitem(&pwrctrlpriv->rpwmtimeoutwi, rpwmtimeout_workitem_callback, NULL);
1166 timer_setup(&pwrctrlpriv->pwr_rpwm_timer, pwr_rpwm_timeout_handler, 0);
1167 timer_setup(&pwrctrlpriv->pwr_state_check_timer,
1168 pwr_state_check_handler, 0);
1170 pwrctrlpriv->wowlan_mode = false;
1171 pwrctrlpriv->wowlan_ap_mode = false;
1173 #ifdef CONFIG_PNO_SUPPORT
1174 pwrctrlpriv->pno_inited = false;
1175 pwrctrlpriv->pnlo_info = NULL;
1176 pwrctrlpriv->pscan_info = NULL;
1177 pwrctrlpriv->pno_ssid_list = NULL;
1178 pwrctrlpriv->pno_in_resume = true;
1183 void rtw_free_pwrctrl_priv(struct adapter *adapter)
1185 #ifdef CONFIG_PNO_SUPPORT
1186 if (pwrctrlpriv->pnlo_info != NULL)
1187 printk("****** pnlo_info memory leak********\n");
1189 if (pwrctrlpriv->pscan_info != NULL)
1190 printk("****** pscan_info memory leak********\n");
1192 if (pwrctrlpriv->pno_ssid_list != NULL)
1193 printk("****** pno_ssid_list memory leak********\n");
1197 inline void rtw_set_ips_deny(struct adapter *padapter, u32 ms)
1199 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
1200 pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ms);
1204 * rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
1205 * @adapter: pointer to struct adapter structure
1206 * @ips_deffer_ms: the ms wiil prevent from falling into IPS after wakeup
1207 * Return _SUCCESS or _FAIL
1210 int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *caller)
1212 struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
1213 struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj);
1214 struct mlme_priv *pmlmepriv;
1216 unsigned long start = jiffies;
1217 unsigned long deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
1220 LeaveAllPowerSaveMode(padapter);
1222 /* IPS still bound with primary adapter */
1223 padapter = GET_PRIMARY_ADAPTER(padapter);
1224 pmlmepriv = &padapter->mlmepriv;
1226 if (time_before(pwrpriv->ips_deny_time, deny_time))
1227 pwrpriv->ips_deny_time = deny_time;
1230 if (pwrpriv->ps_processing) {
1231 DBG_871X("%s wait ps_processing...\n", __func__);
1232 while (pwrpriv->ps_processing && jiffies_to_msecs(jiffies - start) <= 3000)
1234 if (pwrpriv->ps_processing)
1235 DBG_871X("%s wait ps_processing timeout\n", __func__);
1237 DBG_871X("%s wait ps_processing done\n", __func__);
1240 if (pwrpriv->bInternalAutoSuspend == false && pwrpriv->bInSuspend) {
1241 DBG_871X("%s wait bInSuspend...\n", __func__);
1242 while (pwrpriv->bInSuspend
1243 && jiffies_to_msecs(jiffies - start) <= 3000
1247 if (pwrpriv->bInSuspend)
1248 DBG_871X("%s wait bInSuspend timeout\n", __func__);
1250 DBG_871X("%s wait bInSuspend done\n", __func__);
1253 /* System suspend is not allowed to wakeup */
1254 if ((pwrpriv->bInternalAutoSuspend == false) && (true == pwrpriv->bInSuspend)) {
1260 if ((pwrpriv->bInternalAutoSuspend == true) && (padapter->net_closed == true)) {
1265 /* I think this should be check in IPS, LPS, autosuspend functions... */
1266 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1271 if (rf_off == pwrpriv->rf_pwrstate) {
1273 DBG_8192C("%s call ips_leave....\n", __func__);
1274 if (_FAIL == ips_leave(padapter)) {
1275 DBG_8192C("======> ips_leave fail.............\n");
1282 /* TODO: the following checking need to be merged... */
1283 if (padapter->bDriverStopped
1285 || !padapter->hw_init_completed
1287 DBG_8192C("%s: bDriverStopped =%d, bup =%d, hw_init_completed =%u\n"
1289 , padapter->bDriverStopped
1291 , padapter->hw_init_completed);
1297 deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
1298 if (time_before(pwrpriv->ips_deny_time, deny_time))
1299 pwrpriv->ips_deny_time = deny_time;
1304 int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
1307 struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
1309 if (mode < PS_MODE_NUM) {
1310 if (pwrctrlpriv->power_mgnt != mode) {
1311 if (PS_MODE_ACTIVE == mode)
1312 LeaveAllPowerSaveMode(padapter);
1314 pwrctrlpriv->LpsIdleCount = 2;
1316 pwrctrlpriv->power_mgnt = mode;
1317 pwrctrlpriv->bLeisurePs =
1318 pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE;
1326 int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
1328 struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
1330 if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) {
1331 rtw_ips_mode_req(pwrctrlpriv, mode);
1332 DBG_871X("%s %s\n", __func__, mode == IPS_NORMAL?"IPS_NORMAL":"IPS_LEVEL_2");
1334 } else if (mode == IPS_NONE) {
1335 rtw_ips_mode_req(pwrctrlpriv, mode);
1336 DBG_871X("%s %s\n", __func__, "IPS_NONE");
1337 if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter)))
1347 *This function will request pwrctrl LOCK!
1349 void rtw_ps_deny(struct adapter *padapter, enum PS_DENY_REASON reason)
1351 struct pwrctrl_priv *pwrpriv;
1353 /* DBG_871X("+" FUNC_ADPT_FMT ": Request PS deny for %d (0x%08X)\n", */
1354 /* FUNC_ADPT_ARG(padapter), reason, BIT(reason)); */
1356 pwrpriv = adapter_to_pwrctl(padapter);
1358 mutex_lock(&pwrpriv->lock);
1359 if (pwrpriv->ps_deny & BIT(reason)) {
1360 DBG_871X(FUNC_ADPT_FMT ": [WARNING] Reason %d had been set before!!\n",
1361 FUNC_ADPT_ARG(padapter), reason);
1363 pwrpriv->ps_deny |= BIT(reason);
1364 mutex_unlock(&pwrpriv->lock);
1366 /* DBG_871X("-" FUNC_ADPT_FMT ": Now PS deny for 0x%08X\n", */
1367 /* FUNC_ADPT_ARG(padapter), pwrpriv->ps_deny); */
1372 *This function will request pwrctrl LOCK!
1374 void rtw_ps_deny_cancel(struct adapter *padapter, enum PS_DENY_REASON reason)
1376 struct pwrctrl_priv *pwrpriv;
1379 /* DBG_871X("+" FUNC_ADPT_FMT ": Cancel PS deny for %d(0x%08X)\n", */
1380 /* FUNC_ADPT_ARG(padapter), reason, BIT(reason)); */
1382 pwrpriv = adapter_to_pwrctl(padapter);
1384 mutex_lock(&pwrpriv->lock);
1385 if ((pwrpriv->ps_deny & BIT(reason)) == 0) {
1386 DBG_871X(FUNC_ADPT_FMT ": [ERROR] Reason %d had been canceled before!!\n",
1387 FUNC_ADPT_ARG(padapter), reason);
1389 pwrpriv->ps_deny &= ~BIT(reason);
1390 mutex_unlock(&pwrpriv->lock);
1392 /* DBG_871X("-" FUNC_ADPT_FMT ": Now PS deny for 0x%08X\n", */
1393 /* FUNC_ADPT_ARG(padapter), pwrpriv->ps_deny); */
1398 *Before calling this function pwrctrl lock should be occupied already,
1399 *otherwise it may return incorrect value.
1401 u32 rtw_ps_deny_get(struct adapter *padapter)
1406 deny = adapter_to_pwrctl(padapter)->ps_deny;