1 /******************************************************************************
3 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
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.
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
14 ******************************************************************************/
15 #define _RTW_PWRCTRL_C_
17 #include <drv_types.h>
18 #include <rtw_debug.h>
20 #include <linux/jiffies.h>
23 void _ips_enter(struct adapter *padapter)
25 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
27 pwrpriv->bips_processing = true;
29 /* syn ips_mode with request */
30 pwrpriv->ips_mode = pwrpriv->ips_mode_req;
32 pwrpriv->ips_enter_cnts++;
33 DBG_871X("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts);
35 if (rf_off == pwrpriv->change_rfpwrstate) {
36 pwrpriv->bpower_saving = true;
37 DBG_871X_LEVEL(_drv_always_, "nolinked power save enter\n");
39 if (pwrpriv->ips_mode == IPS_LEVEL_2)
40 pwrpriv->bkeepfwalive = true;
42 rtw_ips_pwr_down(padapter);
43 pwrpriv->rf_pwrstate = rf_off;
45 pwrpriv->bips_processing = false;
49 void ips_enter(struct adapter *padapter)
51 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
54 rtw_btcoex_IpsNotify(padapter, pwrpriv->ips_mode_req);
61 int _ips_leave(struct adapter *padapter)
63 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
64 int result = _SUCCESS;
66 if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) {
67 pwrpriv->bips_processing = true;
68 pwrpriv->change_rfpwrstate = rf_on;
69 pwrpriv->ips_leave_cnts++;
70 DBG_871X("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts);
72 result = rtw_ips_pwr_up(padapter);
73 if (result == _SUCCESS) {
74 pwrpriv->rf_pwrstate = rf_on;
76 DBG_871X_LEVEL(_drv_always_, "nolinked power save leave\n");
78 DBG_871X("==> ips_leave.....LED(0x%08x)...\n", rtw_read32(padapter, 0x4c));
79 pwrpriv->bips_processing = false;
81 pwrpriv->bkeepfwalive = false;
82 pwrpriv->bpower_saving = false;
88 int ips_leave(struct adapter *padapter)
90 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
93 if (!is_primary_adapter(padapter))
97 ret = _ips_leave(padapter);
101 rtw_btcoex_IpsNotify(padapter, IPS_NONE);
106 static bool rtw_pwr_unassociated_idle(struct adapter *adapter)
108 struct adapter *buddy = adapter->pbuddy_adapter;
109 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
110 struct xmit_priv *pxmit_priv = &adapter->xmitpriv;
114 if (adapter_to_pwrctl(adapter)->bpower_saving == true) {
115 /* DBG_871X("%s: already in LPS or IPS mode\n", __func__); */
119 if (time_before(jiffies, adapter_to_pwrctl(adapter)->ips_deny_time)) {
120 /* DBG_871X("%s ips_deny_time\n", __func__); */
124 if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR)
125 || check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
126 || check_fwstate(pmlmepriv, WIFI_AP_STATE)
127 || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
131 /* consider buddy, if exist */
133 struct mlme_priv *b_pmlmepriv = &(buddy->mlmepriv);
135 if (check_fwstate(b_pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR)
136 || check_fwstate(b_pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
137 || check_fwstate(b_pmlmepriv, WIFI_AP_STATE)
138 || check_fwstate(b_pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
143 if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
144 pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) {
145 DBG_871X_LEVEL(_drv_always_, "There are some pkts to transmit\n");
146 DBG_871X_LEVEL(_drv_always_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n",
147 pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt);
160 *rtw_ps_processor() doesn't handle LPS.
162 void rtw_ps_processor(struct adapter *padapter)
164 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
165 struct dvobj_priv *psdpriv = padapter->dvobj;
166 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
169 down(&adapter_to_pwrctl(padapter)->lock);
170 ps_deny = rtw_ps_deny_get(padapter);
171 up(&adapter_to_pwrctl(padapter)->lock);
173 DBG_871X(FUNC_ADPT_FMT ": ps_deny = 0x%08X, skip power save!\n",
174 FUNC_ADPT_ARG(padapter), ps_deny);
178 if (pwrpriv->bInSuspend == true) {/* system suspend or autosuspend */
179 pdbgpriv->dbg_ps_insuspend_cnt++;
180 DBG_871X("%s, pwrpriv->bInSuspend == true ignore this process\n", __func__);
184 pwrpriv->ps_processing = true;
186 if (pwrpriv->ips_mode_req == IPS_NONE)
189 if (rtw_pwr_unassociated_idle(padapter) == false)
192 if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0)) {
193 DBG_871X("==>%s\n", __func__);
194 pwrpriv->change_rfpwrstate = rf_off;
200 pwrpriv->ps_processing = false;
204 void pwr_state_check_handler(RTW_TIMER_HDL_ARGS);
205 void pwr_state_check_handler(RTW_TIMER_HDL_ARGS)
207 struct adapter *padapter = (struct adapter *)FunctionContext;
208 rtw_ps_cmd(padapter);
211 void traffic_check_for_leave_lps(struct adapter *padapter, u8 tx, u32 tx_packets)
213 static unsigned long start_time;
215 u8 bLeaveLPS = false;
216 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
220 if (tx) { /* from tx */
221 xmit_cnt += tx_packets;
224 start_time = jiffies;
226 if (jiffies_to_msecs(jiffies - start_time) > 2000) { /* 2 sec == watch dog timer */
228 if ((adapter_to_pwrctl(padapter)->bLeisurePs)
229 && (adapter_to_pwrctl(padapter)->pwr_mode != PS_MODE_ACTIVE)
230 && (rtw_btcoex_IsBtControlLps(padapter) == false)
232 DBG_871X("leave lps via Tx = %d\n", xmit_cnt);
237 start_time = jiffies;
241 } else { /* from rx path */
242 if (pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod > 4/*2*/) {
243 if ((adapter_to_pwrctl(padapter)->bLeisurePs)
244 && (adapter_to_pwrctl(padapter)->pwr_mode != PS_MODE_ACTIVE)
245 && (rtw_btcoex_IsBtControlLps(padapter) == false)
247 DBG_871X("leave lps via Rx = %d\n", pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod);
254 /* DBG_871X("leave lps via %s, Tx = %d, Rx = %d\n", tx?"Tx":"Rx", pmlmepriv->LinkDetectInfo.NumTxOkInPeriod, pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod); */
255 /* rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1); */
256 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, tx?0:1);
261 *This function MUST be called under power lock protect
265 *pslv power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
268 void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
271 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
274 pslv = PS_STATE(pslv);
276 if (pwrpriv->brpwmtimeout == true) {
277 DBG_871X("%s: RPWM timeout, force to set RPWM(0x%02X) again!\n", __func__, pslv);
279 if ((pwrpriv->rpwm == pslv)
280 || ((pwrpriv->rpwm >= PS_STATE_S2) && (pslv >= PS_STATE_S2))) {
281 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
282 ("%s: Already set rpwm[0x%02X], new = 0x%02X!\n", __func__, pwrpriv->rpwm, pslv));
287 if ((padapter->bSurpriseRemoved == true) ||
288 (padapter->hw_init_completed == false)) {
289 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
290 ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
291 __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed));
293 pwrpriv->cpwm = PS_STATE_S4;
298 if (padapter->bDriverStopped == true) {
299 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
300 ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv));
302 if (pslv < PS_STATE_S2) {
303 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
304 ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv));
309 rpwm = pslv | pwrpriv->tog;
310 /* only when from PS_STATE S0/S1 to S2 and higher needs ACK */
311 if ((pwrpriv->cpwm < PS_STATE_S2) && (pslv >= PS_STATE_S2))
313 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
314 ("rtw_set_rpwm: rpwm = 0x%02x cpwm = 0x%02x\n", rpwm, pwrpriv->cpwm));
316 pwrpriv->rpwm = pslv;
320 rtw_hal_get_hwreg(padapter, HW_VAR_CPWM, &cpwm_orig);
323 _set_timer(&pwrpriv->pwr_rpwm_timer, LPS_RPWM_WAIT_MS);
324 rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm));
326 pwrpriv->tog += 0x80;
328 /* No LPS 32K, No Ack */
330 unsigned long start_time;
334 start_time = jiffies;
340 rtw_hal_get_hwreg(padapter, HW_VAR_CPWM, &cpwm_now);
341 if ((cpwm_orig ^ cpwm_now) & 0x80) {
342 pwrpriv->cpwm = PS_STATE_S4;
343 pwrpriv->cpwm_tog = cpwm_now & PS_TOGGLE;
347 if (jiffies_to_msecs(jiffies - start_time) > LPS_RPWM_WAIT_MS) {
348 DBG_871X("%s: polling cpwm timeout! poll_cnt =%d, cpwm_orig =%02x, cpwm_now =%02x\n", __func__, poll_cnt, cpwm_orig, cpwm_now);
349 _set_timer(&pwrpriv->pwr_rpwm_timer, 1);
354 pwrpriv->cpwm = pslv;
357 static u8 PS_RDY_CHECK(struct adapter *padapter)
359 unsigned long curr_time, delta_time;
360 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
361 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
363 #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
364 if (true == pwrpriv->bInSuspend && pwrpriv->wowlan_mode)
366 else if (true == pwrpriv->bInSuspend && pwrpriv->wowlan_ap_mode)
368 else if (true == pwrpriv->bInSuspend)
371 if (true == pwrpriv->bInSuspend)
377 delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp;
379 if (delta_time < LPS_DELAY_TIME)
382 if (check_fwstate(pmlmepriv, WIFI_SITE_MONITOR)
383 || check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
384 || check_fwstate(pmlmepriv, WIFI_AP_STATE)
385 || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
386 || rtw_is_scan_deny(padapter)
390 if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) {
391 DBG_871X("Group handshake still in progress !!!\n");
395 if (!rtw_cfg80211_pwr_mgmt(padapter))
401 void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode, const char *msg)
403 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
404 #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
405 struct debug_priv *pdbgpriv = &padapter->dvobj->drv_dbg;
408 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
409 ("%s: PowerMode =%d Smart_PS =%d\n",
410 __func__, ps_mode, smart_ps));
412 if (ps_mode > PM_Card_Disable) {
413 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode));
417 if (pwrpriv->pwr_mode == ps_mode)
418 if (PS_MODE_ACTIVE == ps_mode)
422 down(&pwrpriv->lock);
424 /* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */
425 if (ps_mode == PS_MODE_ACTIVE) {
427 && (((rtw_btcoex_IsBtControlLps(padapter) == false)
429 || ((rtw_btcoex_IsBtControlLps(padapter) == true)
430 && (rtw_btcoex_IsLpsOn(padapter) == false))
433 DBG_871X(FUNC_ADPT_FMT" Leave 802.11 power save - %s\n",
434 FUNC_ADPT_ARG(padapter), msg);
436 pwrpriv->pwr_mode = ps_mode;
437 rtw_set_rpwm(padapter, PS_STATE_S4);
439 #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
440 if (pwrpriv->wowlan_mode == true ||
441 pwrpriv->wowlan_ap_mode == true) {
442 unsigned long start_time;
446 start_time = jiffies;
448 rtw_hal_get_hwreg(padapter, HW_VAR_SYS_CLKR, &val8);
449 if (!(val8 & BIT(4))) { /* 0x08 bit4 = 1 --> in 32k, bit4 = 0 --> leave 32k */
450 pwrpriv->cpwm = PS_STATE_S4;
453 if (jiffies_to_msecs(jiffies - start_time) > delay_ms) {
454 DBG_871X("%s: Wait for FW 32K leave more than %u ms!!!\n",
456 pdbgpriv->dbg_wow_leave_ps_fail_cnt++;
463 rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
464 pwrpriv->bFwCurrentInPSMode = false;
466 rtw_btcoex_LpsNotify(padapter, ps_mode);
469 if ((PS_RDY_CHECK(padapter) && check_fwstate(&padapter->mlmepriv, WIFI_ASOC_STATE))
470 || ((rtw_btcoex_IsBtControlLps(padapter) == true)
471 && (rtw_btcoex_IsLpsOn(padapter) == true))
475 DBG_871X(FUNC_ADPT_FMT" Enter 802.11 power save - %s\n",
476 FUNC_ADPT_ARG(padapter), msg);
478 rtw_btcoex_LpsNotify(padapter, ps_mode);
480 pwrpriv->bFwCurrentInPSMode = true;
481 pwrpriv->pwr_mode = ps_mode;
482 pwrpriv->smart_ps = smart_ps;
483 pwrpriv->bcn_ant_mode = bcn_ant_mode;
484 rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
487 if (pwrpriv->alives == 0)
490 if ((rtw_btcoex_IsBtDisabled(padapter) == false)
491 && (rtw_btcoex_IsBtControlLps(padapter) == true)) {
494 val8 = rtw_btcoex_LpsVal(padapter);
499 rtw_set_rpwm(padapter, pslv);
512 s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
514 unsigned long start_time;
519 start_time = jiffies;
521 rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake);
525 if (true == padapter->bSurpriseRemoved) {
527 DBG_871X("%s: device surprise removed!!\n", __func__);
531 if (jiffies_to_msecs(jiffies - start_time) > delay_ms) {
533 DBG_871X("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
544 /* Enter the leisure power save mode. */
546 void LPS_Enter(struct adapter *padapter, const char *msg)
548 struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
549 struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj);
550 int n_assoc_iface = 0;
553 if (rtw_btcoex_IsBtControlLps(padapter) == true)
556 /* Skip lps enter request if number of assocated adapters is not 1 */
557 if (check_fwstate(&(dvobj->padapters->mlmepriv), WIFI_ASOC_STATE))
559 if (n_assoc_iface != 1)
562 /* Skip lps enter request for adapter not port0 */
563 if (get_iface_type(padapter) != IFACE_PORT0)
566 if (PS_RDY_CHECK(dvobj->padapters) == false)
569 if (pwrpriv->bLeisurePs) {
570 /* Idle for a while if we connect to AP a while ago. */
571 if (pwrpriv->LpsIdleCount >= 2) { /* 4 Sec */
572 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
573 sprintf(buf, "WIFI-%s", msg);
574 pwrpriv->bpower_saving = true;
575 rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, padapter->registrypriv.smart_ps, 0, buf);
578 pwrpriv->LpsIdleCount++;
581 /* DBG_871X("-LeisurePSEnter\n"); */
586 /* Leave the leisure power save mode. */
588 void LPS_Leave(struct adapter *padapter, const char *msg)
590 #define LPS_LEAVE_TIMEOUT_MS 100
592 struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
593 struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj);
596 /* DBG_871X("+LeisurePSLeave\n"); */
598 if (rtw_btcoex_IsBtControlLps(padapter) == true)
601 if (pwrpriv->bLeisurePs) {
602 if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
603 sprintf(buf, "WIFI-%s", msg);
604 rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0, buf);
606 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
607 LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS);
611 pwrpriv->bpower_saving = false;
612 /* DBG_871X("-LeisurePSLeave\n"); */
616 void LeaveAllPowerSaveModeDirect(struct adapter *Adapter)
618 struct adapter *pri_padapter = GET_PRIMARY_ADAPTER(Adapter);
619 struct mlme_priv *pmlmepriv = &(Adapter->mlmepriv);
620 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(Adapter);
622 DBG_871X("%s.....\n", __func__);
624 if (true == Adapter->bSurpriseRemoved) {
625 DBG_871X(FUNC_ADPT_FMT ": bSurpriseRemoved =%d Skip!\n",
626 FUNC_ADPT_ARG(Adapter), Adapter->bSurpriseRemoved);
630 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true)) { /* connect */
632 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
633 DBG_871X("%s: Driver Already Leave LPS\n", __func__);
637 down(&pwrpriv->lock);
639 rtw_set_rpwm(Adapter, PS_STATE_S4);
643 rtw_lps_ctrl_wk_cmd(pri_padapter, LPS_CTRL_LEAVE, 0);
645 if (pwrpriv->rf_pwrstate == rf_off)
646 if (false == ips_leave(pri_padapter))
647 DBG_871X("======> ips_leave fail.............\n");
652 /* Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
653 /* Move code to function by tynli. 2010.03.26. */
655 void LeaveAllPowerSaveMode(struct adapter *Adapter)
657 struct dvobj_priv *dvobj = adapter_to_dvobj(Adapter);
659 int n_assoc_iface = 0;
662 DBG_871X(FUNC_ADPT_FMT ": bup =%d Skip!\n",
663 FUNC_ADPT_ARG(Adapter), Adapter->bup);
667 if (Adapter->bSurpriseRemoved) {
668 DBG_871X(FUNC_ADPT_FMT ": bSurpriseRemoved =%d Skip!\n",
669 FUNC_ADPT_ARG(Adapter), Adapter->bSurpriseRemoved);
673 if (check_fwstate(&(dvobj->padapters->mlmepriv), WIFI_ASOC_STATE))
676 if (n_assoc_iface) { /* connect */
679 rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue);
681 LPS_Leave_check(Adapter);
683 if (adapter_to_pwrctl(Adapter)->rf_pwrstate == rf_off) {
684 if (false == ips_leave(Adapter))
685 DBG_871X("======> ips_leave fail.............\n");
690 void LPS_Leave_check(
691 struct adapter *padapter)
693 struct pwrctrl_priv *pwrpriv;
694 unsigned long start_time;
697 pwrpriv = adapter_to_pwrctl(padapter);
700 start_time = jiffies;
705 down(&pwrpriv->lock);
707 if ((padapter->bSurpriseRemoved == true)
708 || (padapter->hw_init_completed == false)
709 || (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
718 if (jiffies_to_msecs(jiffies - start_time) > 100) {
719 DBG_871X("Wait for cpwm event than 100 ms!!!\n");
727 * Caller:ISR handler...
729 * This will be called when CPWM interrupt is up.
731 * using to update cpwn of drv; and drv willl make a decision to up or down pwr level
734 struct adapter *padapter,
735 struct reportpwrstate_parm *preportpwrstate)
737 struct pwrctrl_priv *pwrpriv;
739 pwrpriv = adapter_to_pwrctl(padapter);
741 down(&pwrpriv->lock);
743 if (pwrpriv->rpwm < PS_STATE_S2) {
744 DBG_871X("%s: Redundant CPWM Int. RPWM = 0x%02X CPWM = 0x%02x\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
749 pwrpriv->cpwm = PS_STATE(preportpwrstate->state);
750 pwrpriv->cpwm_tog = preportpwrstate->state & PS_TOGGLE;
752 if (pwrpriv->cpwm >= PS_STATE_S2) {
753 if (pwrpriv->alives & CMD_ALIVE)
754 up(&padapter->cmdpriv.cmd_queue_sema);
756 if (pwrpriv->alives & XMIT_ALIVE)
757 up(&padapter->xmitpriv.xmit_sema);
763 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
764 ("cpwm_int_hdl: cpwm = 0x%02x\n", pwrpriv->cpwm));
767 static void cpwm_event_callback(struct work_struct *work)
769 struct pwrctrl_priv *pwrpriv = container_of(work, struct pwrctrl_priv, cpwm_event);
770 struct dvobj_priv *dvobj = pwrctl_to_dvobj(pwrpriv);
771 struct adapter *adapter = dvobj->if1;
772 struct reportpwrstate_parm report;
774 /* DBG_871X("%s\n", __func__); */
776 report.state = PS_STATE_S2;
777 cpwm_int_hdl(adapter, &report);
780 static void rpwmtimeout_workitem_callback(struct work_struct *work)
782 struct adapter *padapter;
783 struct dvobj_priv *dvobj;
784 struct pwrctrl_priv *pwrpriv;
787 pwrpriv = container_of(work, struct pwrctrl_priv, rpwmtimeoutwi);
788 dvobj = pwrctl_to_dvobj(pwrpriv);
789 padapter = dvobj->if1;
790 /* DBG_871X("+%s: rpwm = 0x%02X cpwm = 0x%02X\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm); */
792 down(&pwrpriv->lock);
793 if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
794 DBG_871X("%s: rpwm = 0x%02X cpwm = 0x%02X CPWM done!\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
799 if (rtw_read8(padapter, 0x100) != 0xEA) {
800 struct reportpwrstate_parm report;
802 report.state = PS_STATE_S2;
803 DBG_871X("\n%s: FW already leave 32K!\n\n", __func__);
804 cpwm_int_hdl(padapter, &report);
809 down(&pwrpriv->lock);
811 if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
812 DBG_871X("%s: cpwm =%d, nothing to do!\n", __func__, pwrpriv->cpwm);
815 pwrpriv->brpwmtimeout = true;
816 rtw_set_rpwm(padapter, pwrpriv->rpwm);
817 pwrpriv->brpwmtimeout = false;
824 * This function is a timer handler, can't do any IO in it.
826 static void pwr_rpwm_timeout_handler(void *FunctionContext)
828 struct adapter *padapter;
829 struct pwrctrl_priv *pwrpriv;
832 padapter = FunctionContext;
833 pwrpriv = adapter_to_pwrctl(padapter);
834 DBG_871X("+%s: rpwm = 0x%02X cpwm = 0x%02X\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
836 if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
837 DBG_871X("+%s: cpwm =%d, nothing to do!\n", __func__, pwrpriv->cpwm);
841 _set_workitem(&pwrpriv->rpwmtimeoutwi);
844 static __inline void register_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag)
846 pwrctrl->alives |= tag;
849 static __inline void unregister_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag)
851 pwrctrl->alives &= ~tag;
857 *Check if the fw_pwrstate is okay for I/O.
858 *If not (cpwm is less than S2), then the sub-routine
859 *will raise the cpwm to be greater than or equal to S2.
861 *Calling Context: Passive
864 * 1. this function will request pwrctrl->lock
867 *_SUCCESS hardware is ready for I/O
868 *_FAIL can't I/O right now
870 s32 rtw_register_task_alive(struct adapter *padapter, u32 task)
873 struct pwrctrl_priv *pwrctrl;
877 pwrctrl = adapter_to_pwrctl(padapter);
880 down(&pwrctrl->lock);
882 register_task_alive(pwrctrl, task);
884 if (pwrctrl->bFwCurrentInPSMode == true) {
885 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
886 ("%s: task = 0x%x cpwm = 0x%02x alives = 0x%08x\n",
887 __func__, task, pwrctrl->cpwm, pwrctrl->alives));
889 if (pwrctrl->cpwm < pslv) {
890 if (pwrctrl->cpwm < PS_STATE_S2)
892 if (pwrctrl->rpwm < pslv)
893 rtw_set_rpwm(padapter, pslv);
900 if (pwrctrl->cpwm >= PS_STATE_S2)
908 *If task is done, call this func. to power down firmware again.
911 * 1. this function will request pwrctrl->lock
916 void rtw_unregister_task_alive(struct adapter *padapter, u32 task)
918 struct pwrctrl_priv *pwrctrl;
921 pwrctrl = adapter_to_pwrctl(padapter);
924 if ((rtw_btcoex_IsBtDisabled(padapter) == false)
925 && (rtw_btcoex_IsBtControlLps(padapter) == true)) {
928 val8 = rtw_btcoex_LpsVal(padapter);
933 down(&pwrctrl->lock);
935 unregister_task_alive(pwrctrl, task);
937 if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE)
938 && (pwrctrl->bFwCurrentInPSMode == true)) {
939 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
940 ("%s: cpwm = 0x%02x alives = 0x%08x\n",
941 __func__, pwrctrl->cpwm, pwrctrl->alives));
943 if (pwrctrl->cpwm > pslv)
944 if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0))
945 rtw_set_rpwm(padapter, pslv);
953 * Caller: rtw_xmit_thread
955 * Check if the fw_pwrstate is okay for xmit.
956 * If not (cpwm is less than S3), then the sub-routine
957 * will raise the cpwm to be greater than or equal to S3.
959 * Calling Context: Passive
962 * _SUCCESS rtw_xmit_thread can write fifo/txcmd afterwards.
963 * _FAIL rtw_xmit_thread can not do anything.
965 s32 rtw_register_tx_alive(struct adapter *padapter)
968 struct pwrctrl_priv *pwrctrl;
972 pwrctrl = adapter_to_pwrctl(padapter);
975 down(&pwrctrl->lock);
977 register_task_alive(pwrctrl, XMIT_ALIVE);
979 if (pwrctrl->bFwCurrentInPSMode == true) {
980 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
981 ("rtw_register_tx_alive: cpwm = 0x%02x alives = 0x%08x\n",
982 pwrctrl->cpwm, pwrctrl->alives));
984 if (pwrctrl->cpwm < pslv) {
985 if (pwrctrl->cpwm < PS_STATE_S2)
987 if (pwrctrl->rpwm < pslv)
988 rtw_set_rpwm(padapter, pslv);
995 if (pwrctrl->cpwm >= PS_STATE_S2)
1002 * Caller: rtw_cmd_thread
1004 * Check if the fw_pwrstate is okay for issuing cmd.
1005 * If not (cpwm should be is less than S2), then the sub-routine
1006 * will raise the cpwm to be greater than or equal to S2.
1008 * Calling Context: Passive
1011 *_SUCCESS rtw_cmd_thread can issue cmds to firmware afterwards.
1012 *_FAIL rtw_cmd_thread can not do anything.
1014 s32 rtw_register_cmd_alive(struct adapter *padapter)
1017 struct pwrctrl_priv *pwrctrl;
1021 pwrctrl = adapter_to_pwrctl(padapter);
1024 down(&pwrctrl->lock);
1026 register_task_alive(pwrctrl, CMD_ALIVE);
1028 if (pwrctrl->bFwCurrentInPSMode == true) {
1029 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_info_,
1030 ("rtw_register_cmd_alive: cpwm = 0x%02x alives = 0x%08x\n",
1031 pwrctrl->cpwm, pwrctrl->alives));
1033 if (pwrctrl->cpwm < pslv) {
1034 if (pwrctrl->cpwm < PS_STATE_S2)
1036 if (pwrctrl->rpwm < pslv)
1037 rtw_set_rpwm(padapter, pslv);
1044 if (pwrctrl->cpwm >= PS_STATE_S2)
1054 * No more pkts for TX,
1055 * Then driver shall call this fun. to power down firmware again.
1057 void rtw_unregister_tx_alive(struct adapter *padapter)
1059 struct pwrctrl_priv *pwrctrl;
1062 pwrctrl = adapter_to_pwrctl(padapter);
1065 if ((rtw_btcoex_IsBtDisabled(padapter) == false)
1066 && (rtw_btcoex_IsBtControlLps(padapter) == true)) {
1069 val8 = rtw_btcoex_LpsVal(padapter);
1074 down(&pwrctrl->lock);
1076 unregister_task_alive(pwrctrl, XMIT_ALIVE);
1078 if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE)
1079 && (pwrctrl->bFwCurrentInPSMode == true)) {
1080 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
1081 ("%s: cpwm = 0x%02x alives = 0x%08x\n",
1082 __func__, pwrctrl->cpwm, pwrctrl->alives));
1084 if (pwrctrl->cpwm > pslv)
1085 if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0))
1086 rtw_set_rpwm(padapter, pslv);
1095 * If all commands have been done,
1096 * and no more command to do,
1097 * then driver shall call this fun. to power down firmware again.
1099 void rtw_unregister_cmd_alive(struct adapter *padapter)
1101 struct pwrctrl_priv *pwrctrl;
1104 pwrctrl = adapter_to_pwrctl(padapter);
1107 if ((rtw_btcoex_IsBtDisabled(padapter) == false)
1108 && (rtw_btcoex_IsBtControlLps(padapter) == true)) {
1111 val8 = rtw_btcoex_LpsVal(padapter);
1116 down(&pwrctrl->lock);
1118 unregister_task_alive(pwrctrl, CMD_ALIVE);
1120 if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE)
1121 && (pwrctrl->bFwCurrentInPSMode == true)) {
1122 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_info_,
1123 ("%s: cpwm = 0x%02x alives = 0x%08x\n",
1124 __func__, pwrctrl->cpwm, pwrctrl->alives));
1126 if (pwrctrl->cpwm > pslv) {
1127 if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0))
1128 rtw_set_rpwm(padapter, pslv);
1135 void rtw_init_pwrctrl_priv(struct adapter *padapter)
1137 struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
1139 sema_init(&pwrctrlpriv->lock, 1);
1140 sema_init(&pwrctrlpriv->check_32k_lock, 1);
1141 pwrctrlpriv->rf_pwrstate = rf_on;
1142 pwrctrlpriv->ips_enter_cnts = 0;
1143 pwrctrlpriv->ips_leave_cnts = 0;
1144 pwrctrlpriv->bips_processing = false;
1146 pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
1147 pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
1149 pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
1150 pwrctrlpriv->pwr_state_check_cnts = 0;
1151 pwrctrlpriv->bInternalAutoSuspend = false;
1152 pwrctrlpriv->bInSuspend = false;
1153 pwrctrlpriv->bkeepfwalive = false;
1155 pwrctrlpriv->LpsIdleCount = 0;
1156 pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/* PS_MODE_MIN; */
1157 pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt)?true:false;
1159 pwrctrlpriv->bFwCurrentInPSMode = false;
1161 pwrctrlpriv->rpwm = 0;
1162 pwrctrlpriv->cpwm = PS_STATE_S4;
1164 pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
1165 pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
1166 pwrctrlpriv->bcn_ant_mode = 0;
1167 pwrctrlpriv->dtim = 0;
1169 pwrctrlpriv->tog = 0x80;
1171 rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&pwrctrlpriv->rpwm));
1173 _init_workitem(&pwrctrlpriv->cpwm_event, cpwm_event_callback, NULL);
1175 pwrctrlpriv->brpwmtimeout = false;
1176 _init_workitem(&pwrctrlpriv->rpwmtimeoutwi, rpwmtimeout_workitem_callback, NULL);
1177 _init_timer(&pwrctrlpriv->pwr_rpwm_timer, padapter->pnetdev, pwr_rpwm_timeout_handler, padapter);
1179 rtw_init_timer(&pwrctrlpriv->pwr_state_check_timer, padapter, pwr_state_check_handler);
1181 pwrctrlpriv->wowlan_mode = false;
1182 pwrctrlpriv->wowlan_ap_mode = false;
1184 #ifdef CONFIG_PNO_SUPPORT
1185 pwrctrlpriv->pno_inited = false;
1186 pwrctrlpriv->pnlo_info = NULL;
1187 pwrctrlpriv->pscan_info = NULL;
1188 pwrctrlpriv->pno_ssid_list = NULL;
1189 pwrctrlpriv->pno_in_resume = true;
1194 void rtw_free_pwrctrl_priv(struct adapter *adapter)
1196 /* memset((unsigned char *)pwrctrlpriv, 0, sizeof(struct pwrctrl_priv)); */
1198 #ifdef CONFIG_PNO_SUPPORT
1199 if (pwrctrlpriv->pnlo_info != NULL)
1200 printk("****** pnlo_info memory leak********\n");
1202 if (pwrctrlpriv->pscan_info != NULL)
1203 printk("****** pscan_info memory leak********\n");
1205 if (pwrctrlpriv->pno_ssid_list != NULL)
1206 printk("****** pno_ssid_list memory leak********\n");
1210 inline void rtw_set_ips_deny(struct adapter *padapter, u32 ms)
1212 struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
1213 pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ms);
1217 * rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
1218 * @adapter: pointer to struct adapter structure
1219 * @ips_deffer_ms: the ms wiil prevent from falling into IPS after wakeup
1220 * Return _SUCCESS or _FAIL
1223 int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *caller)
1225 struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
1226 struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj);
1227 struct mlme_priv *pmlmepriv;
1229 unsigned long start = jiffies;
1230 unsigned long deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
1233 LeaveAllPowerSaveMode(padapter);
1235 /* IPS still bound with primary adapter */
1236 padapter = GET_PRIMARY_ADAPTER(padapter);
1237 pmlmepriv = &padapter->mlmepriv;
1239 if (time_before(pwrpriv->ips_deny_time, deny_time))
1240 pwrpriv->ips_deny_time = deny_time;
1243 if (pwrpriv->ps_processing) {
1244 DBG_871X("%s wait ps_processing...\n", __func__);
1245 while (pwrpriv->ps_processing && jiffies_to_msecs(jiffies - start) <= 3000)
1247 if (pwrpriv->ps_processing)
1248 DBG_871X("%s wait ps_processing timeout\n", __func__);
1250 DBG_871X("%s wait ps_processing done\n", __func__);
1253 if (pwrpriv->bInternalAutoSuspend == false && pwrpriv->bInSuspend) {
1254 DBG_871X("%s wait bInSuspend...\n", __func__);
1255 while (pwrpriv->bInSuspend
1256 && jiffies_to_msecs(jiffies - start) <= 3000
1260 if (pwrpriv->bInSuspend)
1261 DBG_871X("%s wait bInSuspend timeout\n", __func__);
1263 DBG_871X("%s wait bInSuspend done\n", __func__);
1266 /* System suspend is not allowed to wakeup */
1267 if ((pwrpriv->bInternalAutoSuspend == false) && (true == pwrpriv->bInSuspend)) {
1273 if ((pwrpriv->bInternalAutoSuspend == true) && (padapter->net_closed == true)) {
1278 /* I think this should be check in IPS, LPS, autosuspend functions... */
1279 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1284 if (rf_off == pwrpriv->rf_pwrstate) {
1286 DBG_8192C("%s call ips_leave....\n", __func__);
1287 if (_FAIL == ips_leave(padapter)) {
1288 DBG_8192C("======> ips_leave fail.............\n");
1295 /* TODO: the following checking need to be merged... */
1296 if (padapter->bDriverStopped
1298 || !padapter->hw_init_completed
1300 DBG_8192C("%s: bDriverStopped =%d, bup =%d, hw_init_completed =%u\n"
1302 , padapter->bDriverStopped
1304 , padapter->hw_init_completed);
1310 deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
1311 if (time_before(pwrpriv->ips_deny_time, deny_time))
1312 pwrpriv->ips_deny_time = deny_time;
1317 int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
1320 struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
1322 if (mode < PS_MODE_NUM) {
1323 if (pwrctrlpriv->power_mgnt != mode) {
1324 if (PS_MODE_ACTIVE == mode)
1325 LeaveAllPowerSaveMode(padapter);
1327 pwrctrlpriv->LpsIdleCount = 2;
1329 pwrctrlpriv->power_mgnt = mode;
1330 pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt)?true:false;
1338 int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
1340 struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
1342 if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) {
1343 rtw_ips_mode_req(pwrctrlpriv, mode);
1344 DBG_871X("%s %s\n", __func__, mode == IPS_NORMAL?"IPS_NORMAL":"IPS_LEVEL_2");
1346 } else if (mode == IPS_NONE) {
1347 rtw_ips_mode_req(pwrctrlpriv, mode);
1348 DBG_871X("%s %s\n", __func__, "IPS_NONE");
1349 if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter)))
1359 *This function will request pwrctrl LOCK!
1361 void rtw_ps_deny(struct adapter *padapter, enum PS_DENY_REASON reason)
1363 struct pwrctrl_priv *pwrpriv;
1365 /* DBG_871X("+" FUNC_ADPT_FMT ": Request PS deny for %d (0x%08X)\n", */
1366 /* FUNC_ADPT_ARG(padapter), reason, BIT(reason)); */
1368 pwrpriv = adapter_to_pwrctl(padapter);
1370 down(&pwrpriv->lock);
1371 if (pwrpriv->ps_deny & BIT(reason)) {
1372 DBG_871X(FUNC_ADPT_FMT ": [WARNING] Reason %d had been set before!!\n",
1373 FUNC_ADPT_ARG(padapter), reason);
1375 pwrpriv->ps_deny |= BIT(reason);
1378 /* DBG_871X("-" FUNC_ADPT_FMT ": Now PS deny for 0x%08X\n", */
1379 /* FUNC_ADPT_ARG(padapter), pwrpriv->ps_deny); */
1384 *This function will request pwrctrl LOCK!
1386 void rtw_ps_deny_cancel(struct adapter *padapter, enum PS_DENY_REASON reason)
1388 struct pwrctrl_priv *pwrpriv;
1391 /* DBG_871X("+" FUNC_ADPT_FMT ": Cancel PS deny for %d(0x%08X)\n", */
1392 /* FUNC_ADPT_ARG(padapter), reason, BIT(reason)); */
1394 pwrpriv = adapter_to_pwrctl(padapter);
1396 down(&pwrpriv->lock);
1397 if ((pwrpriv->ps_deny & BIT(reason)) == 0) {
1398 DBG_871X(FUNC_ADPT_FMT ": [ERROR] Reason %d had been canceled before!!\n",
1399 FUNC_ADPT_ARG(padapter), reason);
1401 pwrpriv->ps_deny &= ~BIT(reason);
1404 /* DBG_871X("-" FUNC_ADPT_FMT ": Now PS deny for 0x%08X\n", */
1405 /* FUNC_ADPT_ARG(padapter), pwrpriv->ps_deny); */
1410 *Before calling this function pwrctrl lock should be occupied already,
1411 *otherwise it may return incorrect value.
1413 u32 rtw_ps_deny_get(struct adapter *padapter)
1418 deny = adapter_to_pwrctl(padapter)->ps_deny;