// SPDX-License-Identifier: GPL-2.0 /****************************************************************************** * * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved. * ******************************************************************************/ #define _RTW_PWRCTRL_C_ #include #include #include #include void _ips_enter(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); pwrpriv->bips_processing = true; /* syn ips_mode with request */ pwrpriv->ips_mode = pwrpriv->ips_mode_req; pwrpriv->ips_enter_cnts++; DBG_871X("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts); if (rf_off == pwrpriv->change_rfpwrstate) { pwrpriv->bpower_saving = true; DBG_871X("nolinked power save enter\n"); if (pwrpriv->ips_mode == IPS_LEVEL_2) pwrpriv->bkeepfwalive = true; rtw_ips_pwr_down(padapter); pwrpriv->rf_pwrstate = rf_off; } pwrpriv->bips_processing = false; } void ips_enter(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); rtw_btcoex_IpsNotify(padapter, pwrpriv->ips_mode_req); down(&pwrpriv->lock); _ips_enter(padapter); up(&pwrpriv->lock); } int _ips_leave(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); int result = _SUCCESS; if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) { pwrpriv->bips_processing = true; pwrpriv->change_rfpwrstate = rf_on; pwrpriv->ips_leave_cnts++; DBG_871X("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts); result = rtw_ips_pwr_up(padapter); if (result == _SUCCESS) { pwrpriv->rf_pwrstate = rf_on; } DBG_871X("nolinked power save leave\n"); DBG_871X("==> ips_leave.....LED(0x%08x)...\n", rtw_read32(padapter, 0x4c)); pwrpriv->bips_processing = false; pwrpriv->bkeepfwalive = false; pwrpriv->bpower_saving = false; } return result; } int ips_leave(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); int ret; if (!is_primary_adapter(padapter)) return _SUCCESS; down(&pwrpriv->lock); ret = _ips_leave(padapter); up(&pwrpriv->lock); if (_SUCCESS == ret) rtw_btcoex_IpsNotify(padapter, IPS_NONE); return ret; } static bool rtw_pwr_unassociated_idle(struct adapter *adapter) { struct adapter *buddy = adapter->pbuddy_adapter; struct mlme_priv *pmlmepriv = &(adapter->mlmepriv); struct xmit_priv *pxmit_priv = &adapter->xmitpriv; bool ret = false; if (adapter_to_pwrctl(adapter)->bpower_saving == true) { /* DBG_871X("%s: already in LPS or IPS mode\n", __func__); */ goto exit; } if (time_before(jiffies, adapter_to_pwrctl(adapter)->ips_deny_time)) { /* DBG_871X("%s ips_deny_time\n", __func__); */ goto exit; } if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR) || check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) || check_fwstate(pmlmepriv, WIFI_AP_STATE) || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE) ) goto exit; /* consider buddy, if exist */ if (buddy) { struct mlme_priv *b_pmlmepriv = &(buddy->mlmepriv); if (check_fwstate(b_pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR) || check_fwstate(b_pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) || check_fwstate(b_pmlmepriv, WIFI_AP_STATE) || check_fwstate(b_pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE) ) goto exit; } if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF || pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) { DBG_871X_LEVEL(_drv_always_, "There are some pkts to transmit\n"); DBG_871X_LEVEL(_drv_always_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n", pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt); goto exit; } ret = true; exit: return ret; } /* * ATTENTION: *rtw_ps_processor() doesn't handle LPS. */ void rtw_ps_processor(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); struct dvobj_priv *psdpriv = padapter->dvobj; struct debug_priv *pdbgpriv = &psdpriv->drv_dbg; u32 ps_deny = 0; down(&adapter_to_pwrctl(padapter)->lock); ps_deny = rtw_ps_deny_get(padapter); up(&adapter_to_pwrctl(padapter)->lock); if (ps_deny != 0) { DBG_871X(FUNC_ADPT_FMT ": ps_deny = 0x%08X, skip power save!\n", FUNC_ADPT_ARG(padapter), ps_deny); goto exit; } if (pwrpriv->bInSuspend == true) {/* system suspend or autosuspend */ pdbgpriv->dbg_ps_insuspend_cnt++; DBG_871X("%s, pwrpriv->bInSuspend == true ignore this process\n", __func__); return; } pwrpriv->ps_processing = true; if (pwrpriv->ips_mode_req == IPS_NONE) goto exit; if (rtw_pwr_unassociated_idle(padapter) == false) goto exit; if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0)) { DBG_871X("==>%s\n", __func__); pwrpriv->change_rfpwrstate = rf_off; { ips_enter(padapter); } } exit: pwrpriv->ps_processing = false; return; } static void pwr_state_check_handler(struct timer_list *t) { struct pwrctrl_priv *pwrctrlpriv = from_timer(pwrctrlpriv, t, pwr_state_check_timer); struct adapter *padapter = pwrctrlpriv->adapter; rtw_ps_cmd(padapter); } void traffic_check_for_leave_lps(struct adapter *padapter, u8 tx, u32 tx_packets) { static unsigned long start_time; static u32 xmit_cnt; u8 bLeaveLPS = false; struct mlme_priv *pmlmepriv = &padapter->mlmepriv; if (tx) { /* from tx */ xmit_cnt += tx_packets; if (start_time == 0) start_time = jiffies; if (jiffies_to_msecs(jiffies - start_time) > 2000) { /* 2 sec == watch dog timer */ if (xmit_cnt > 8) { if ((adapter_to_pwrctl(padapter)->bLeisurePs) && (adapter_to_pwrctl(padapter)->pwr_mode != PS_MODE_ACTIVE) && (rtw_btcoex_IsBtControlLps(padapter) == false) ) { DBG_871X("leave lps via Tx = %d\n", xmit_cnt); bLeaveLPS = true; } } start_time = jiffies; xmit_cnt = 0; } } else { /* from rx path */ if (pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod > 4/*2*/) { if ((adapter_to_pwrctl(padapter)->bLeisurePs) && (adapter_to_pwrctl(padapter)->pwr_mode != PS_MODE_ACTIVE) && (rtw_btcoex_IsBtControlLps(padapter) == false) ) { DBG_871X("leave lps via Rx = %d\n", pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod); bLeaveLPS = true; } } } if (bLeaveLPS) /* DBG_871X("leave lps via %s, Tx = %d, Rx = %d\n", tx?"Tx":"Rx", pmlmepriv->LinkDetectInfo.NumTxOkInPeriod, pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod); */ /* rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1); */ rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, tx?0:1); } /* * Description: *This function MUST be called under power lock protect * * Parameters *padapter *pslv power state level, only could be PS_STATE_S0 ~ PS_STATE_S4 * */ void rtw_set_rpwm(struct adapter *padapter, u8 pslv) { u8 rpwm; struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); u8 cpwm_orig; pslv = PS_STATE(pslv); if (pwrpriv->brpwmtimeout == true) { DBG_871X("%s: RPWM timeout, force to set RPWM(0x%02X) again!\n", __func__, pslv); } else{ if ((pwrpriv->rpwm == pslv) || ((pwrpriv->rpwm >= PS_STATE_S2) && (pslv >= PS_STATE_S2))) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("%s: Already set rpwm[0x%02X], new = 0x%02X!\n", __func__, pwrpriv->rpwm, pslv)); return; } } if ((padapter->bSurpriseRemoved == true) || (padapter->hw_init_completed == false)) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n", __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed)); pwrpriv->cpwm = PS_STATE_S4; return; } if (padapter->bDriverStopped == true) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv)); if (pslv < PS_STATE_S2) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv)); return; } } rpwm = pslv | pwrpriv->tog; /* only when from PS_STATE S0/S1 to S2 and higher needs ACK */ if ((pwrpriv->cpwm < PS_STATE_S2) && (pslv >= PS_STATE_S2)) rpwm |= PS_ACK; RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, ("rtw_set_rpwm: rpwm = 0x%02x cpwm = 0x%02x\n", rpwm, pwrpriv->cpwm)); pwrpriv->rpwm = pslv; cpwm_orig = 0; if (rpwm & PS_ACK) rtw_hal_get_hwreg(padapter, HW_VAR_CPWM, &cpwm_orig); if (rpwm & PS_ACK) _set_timer(&pwrpriv->pwr_rpwm_timer, LPS_RPWM_WAIT_MS); rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm)); pwrpriv->tog += 0x80; /* No LPS 32K, No Ack */ if (rpwm & PS_ACK) { unsigned long start_time; u8 cpwm_now; u8 poll_cnt = 0; start_time = jiffies; /* polling cpwm */ do { mdelay(1); poll_cnt++; rtw_hal_get_hwreg(padapter, HW_VAR_CPWM, &cpwm_now); if ((cpwm_orig ^ cpwm_now) & 0x80) { pwrpriv->cpwm = PS_STATE_S4; pwrpriv->cpwm_tog = cpwm_now & PS_TOGGLE; break; } if (jiffies_to_msecs(jiffies - start_time) > LPS_RPWM_WAIT_MS) { DBG_871X("%s: polling cpwm timeout! poll_cnt =%d, cpwm_orig =%02x, cpwm_now =%02x\n", __func__, poll_cnt, cpwm_orig, cpwm_now); _set_timer(&pwrpriv->pwr_rpwm_timer, 1); break; } } while (1); } else pwrpriv->cpwm = pslv; } static u8 PS_RDY_CHECK(struct adapter *padapter) { unsigned long curr_time, delta_time; struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN) if (true == pwrpriv->bInSuspend && pwrpriv->wowlan_mode) return true; else if (true == pwrpriv->bInSuspend && pwrpriv->wowlan_ap_mode) return true; else if (true == pwrpriv->bInSuspend) return false; #else if (true == pwrpriv->bInSuspend) return false; #endif curr_time = jiffies; delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp; if (delta_time < LPS_DELAY_TIME) return false; if (check_fwstate(pmlmepriv, WIFI_SITE_MONITOR) || check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) || check_fwstate(pmlmepriv, WIFI_AP_STATE) || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE) || rtw_is_scan_deny(padapter) ) return false; if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) { DBG_871X("Group handshake still in progress !!!\n"); return false; } if (!rtw_cfg80211_pwr_mgmt(padapter)) return false; return true; } void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode, const char *msg) { struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN) struct debug_priv *pdbgpriv = &padapter->dvobj->drv_dbg; #endif RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, ("%s: PowerMode =%d Smart_PS =%d\n", __func__, ps_mode, smart_ps)); if (ps_mode > PM_Card_Disable) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode)); return; } if (pwrpriv->pwr_mode == ps_mode) if (PS_MODE_ACTIVE == ps_mode) return; down(&pwrpriv->lock); /* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */ if (ps_mode == PS_MODE_ACTIVE) { if (1 && (((rtw_btcoex_IsBtControlLps(padapter) == false) ) || ((rtw_btcoex_IsBtControlLps(padapter) == true) && (rtw_btcoex_IsLpsOn(padapter) == false)) ) ) { DBG_871X(FUNC_ADPT_FMT" Leave 802.11 power save - %s\n", FUNC_ADPT_ARG(padapter), msg); pwrpriv->pwr_mode = ps_mode; rtw_set_rpwm(padapter, PS_STATE_S4); #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN) if (pwrpriv->wowlan_mode == true || pwrpriv->wowlan_ap_mode == true) { unsigned long start_time; u32 delay_ms; u8 val8; delay_ms = 20; start_time = jiffies; do { rtw_hal_get_hwreg(padapter, HW_VAR_SYS_CLKR, &val8); if (!(val8 & BIT(4))) { /* 0x08 bit4 = 1 --> in 32k, bit4 = 0 --> leave 32k */ pwrpriv->cpwm = PS_STATE_S4; break; } if (jiffies_to_msecs(jiffies - start_time) > delay_ms) { DBG_871X("%s: Wait for FW 32K leave more than %u ms!!!\n", __func__, delay_ms); pdbgpriv->dbg_wow_leave_ps_fail_cnt++; break; } msleep(1); } while (1); } #endif rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode)); pwrpriv->bFwCurrentInPSMode = false; rtw_btcoex_LpsNotify(padapter, ps_mode); } } else{ if ((PS_RDY_CHECK(padapter) && check_fwstate(&padapter->mlmepriv, WIFI_ASOC_STATE)) || ((rtw_btcoex_IsBtControlLps(padapter) == true) && (rtw_btcoex_IsLpsOn(padapter) == true)) ) { u8 pslv; DBG_871X(FUNC_ADPT_FMT" Enter 802.11 power save - %s\n", FUNC_ADPT_ARG(padapter), msg); rtw_btcoex_LpsNotify(padapter, ps_mode); pwrpriv->bFwCurrentInPSMode = true; pwrpriv->pwr_mode = ps_mode; pwrpriv->smart_ps = smart_ps; pwrpriv->bcn_ant_mode = bcn_ant_mode; rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode)); pslv = PS_STATE_S2; if (pwrpriv->alives == 0) pslv = PS_STATE_S0; if ((rtw_btcoex_IsBtDisabled(padapter) == false) && (rtw_btcoex_IsBtControlLps(padapter) == true)) { u8 val8; val8 = rtw_btcoex_LpsVal(padapter); if (val8 & BIT(4)) pslv = PS_STATE_S2; } rtw_set_rpwm(padapter, pslv); } } up(&pwrpriv->lock); } /* * Return: *0: Leave OK *-1: Timeout *-2: Other error */ s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms) { unsigned long start_time; u8 bAwake = false; s32 err = 0; start_time = jiffies; while (1) { rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake); if (true == bAwake) break; if (true == padapter->bSurpriseRemoved) { err = -2; DBG_871X("%s: device surprise removed!!\n", __func__); break; } if (jiffies_to_msecs(jiffies - start_time) > delay_ms) { err = -1; DBG_871X("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms); break; } msleep(1); } return err; } /* */ /* Description: */ /* Enter the leisure power save mode. */ /* */ void LPS_Enter(struct adapter *padapter, const char *msg) { struct dvobj_priv *dvobj = adapter_to_dvobj(padapter); struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj); int n_assoc_iface = 0; char buf[32] = {0}; if (rtw_btcoex_IsBtControlLps(padapter) == true) return; /* Skip lps enter request if number of assocated adapters is not 1 */ if (check_fwstate(&(dvobj->padapters->mlmepriv), WIFI_ASOC_STATE)) n_assoc_iface++; if (n_assoc_iface != 1) return; /* Skip lps enter request for adapter not port0 */ if (get_iface_type(padapter) != IFACE_PORT0) return; if (PS_RDY_CHECK(dvobj->padapters) == false) return; if (pwrpriv->bLeisurePs) { /* Idle for a while if we connect to AP a while ago. */ if (pwrpriv->LpsIdleCount >= 2) { /* 4 Sec */ if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) { sprintf(buf, "WIFI-%s", msg); pwrpriv->bpower_saving = true; rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, padapter->registrypriv.smart_ps, 0, buf); } } else pwrpriv->LpsIdleCount++; } /* DBG_871X("-LeisurePSEnter\n"); */ } /* */ /* Description: */ /* Leave the leisure power save mode. */ /* */ void LPS_Leave(struct adapter *padapter, const char *msg) { #define LPS_LEAVE_TIMEOUT_MS 100 struct dvobj_priv *dvobj = adapter_to_dvobj(padapter); struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj); char buf[32] = {0}; /* DBG_871X("+LeisurePSLeave\n"); */ if (rtw_btcoex_IsBtControlLps(padapter) == true) return; if (pwrpriv->bLeisurePs) { if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) { sprintf(buf, "WIFI-%s", msg); rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0, buf); if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS); } } pwrpriv->bpower_saving = false; /* DBG_871X("-LeisurePSLeave\n"); */ } void LeaveAllPowerSaveModeDirect(struct adapter *Adapter) { struct adapter *pri_padapter = GET_PRIMARY_ADAPTER(Adapter); struct mlme_priv *pmlmepriv = &(Adapter->mlmepriv); struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(Adapter); DBG_871X("%s.....\n", __func__); if (true == Adapter->bSurpriseRemoved) { DBG_871X(FUNC_ADPT_FMT ": bSurpriseRemoved =%d Skip!\n", FUNC_ADPT_ARG(Adapter), Adapter->bSurpriseRemoved); return; } if ((check_fwstate(pmlmepriv, _FW_LINKED) == true)) { /* connect */ if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) { DBG_871X("%s: Driver Already Leave LPS\n", __func__); return; } down(&pwrpriv->lock); rtw_set_rpwm(Adapter, PS_STATE_S4); up(&pwrpriv->lock); rtw_lps_ctrl_wk_cmd(pri_padapter, LPS_CTRL_LEAVE, 0); } else{ if (pwrpriv->rf_pwrstate == rf_off) if (false == ips_leave(pri_padapter)) DBG_871X("======> ips_leave fail.............\n"); } } /* */ /* Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */ /* Move code to function by tynli. 2010.03.26. */ /* */ void LeaveAllPowerSaveMode(struct adapter *Adapter) { struct dvobj_priv *dvobj = adapter_to_dvobj(Adapter); u8 enqueue = 0; int n_assoc_iface = 0; if (!Adapter->bup) { DBG_871X(FUNC_ADPT_FMT ": bup =%d Skip!\n", FUNC_ADPT_ARG(Adapter), Adapter->bup); return; } if (Adapter->bSurpriseRemoved) { DBG_871X(FUNC_ADPT_FMT ": bSurpriseRemoved =%d Skip!\n", FUNC_ADPT_ARG(Adapter), Adapter->bSurpriseRemoved); return; } if (check_fwstate(&(dvobj->padapters->mlmepriv), WIFI_ASOC_STATE)) n_assoc_iface++; if (n_assoc_iface) { /* connect */ enqueue = 1; rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue); LPS_Leave_check(Adapter); } else { if (adapter_to_pwrctl(Adapter)->rf_pwrstate == rf_off) { if (false == ips_leave(Adapter)) DBG_871X("======> ips_leave fail.............\n"); } } } void LPS_Leave_check( struct adapter *padapter) { struct pwrctrl_priv *pwrpriv; unsigned long start_time; u8 bReady; pwrpriv = adapter_to_pwrctl(padapter); bReady = false; start_time = jiffies; cond_resched(); while (1) { down(&pwrpriv->lock); if ((padapter->bSurpriseRemoved == true) || (padapter->hw_init_completed == false) || (pwrpriv->pwr_mode == PS_MODE_ACTIVE) ) bReady = true; up(&pwrpriv->lock); if (true == bReady) break; if (jiffies_to_msecs(jiffies - start_time) > 100) { DBG_871X("Wait for cpwm event than 100 ms!!!\n"); break; } msleep(1); } } /* * Caller:ISR handler... * * This will be called when CPWM interrupt is up. * * using to update cpwn of drv; and drv willl make a decision to up or down pwr level */ void cpwm_int_hdl( struct adapter *padapter, struct reportpwrstate_parm *preportpwrstate) { struct pwrctrl_priv *pwrpriv; pwrpriv = adapter_to_pwrctl(padapter); down(&pwrpriv->lock); if (pwrpriv->rpwm < PS_STATE_S2) { DBG_871X("%s: Redundant CPWM Int. RPWM = 0x%02X CPWM = 0x%02x\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm); up(&pwrpriv->lock); goto exit; } pwrpriv->cpwm = PS_STATE(preportpwrstate->state); pwrpriv->cpwm_tog = preportpwrstate->state & PS_TOGGLE; if (pwrpriv->cpwm >= PS_STATE_S2) { if (pwrpriv->alives & CMD_ALIVE) up(&padapter->cmdpriv.cmd_queue_sema); if (pwrpriv->alives & XMIT_ALIVE) up(&padapter->xmitpriv.xmit_sema); } up(&pwrpriv->lock); exit: RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, ("cpwm_int_hdl: cpwm = 0x%02x\n", pwrpriv->cpwm)); } static void cpwm_event_callback(struct work_struct *work) { struct pwrctrl_priv *pwrpriv = container_of(work, struct pwrctrl_priv, cpwm_event); struct dvobj_priv *dvobj = pwrctl_to_dvobj(pwrpriv); struct adapter *adapter = dvobj->if1; struct reportpwrstate_parm report; /* DBG_871X("%s\n", __func__); */ report.state = PS_STATE_S2; cpwm_int_hdl(adapter, &report); } static void rpwmtimeout_workitem_callback(struct work_struct *work) { struct adapter *padapter; struct dvobj_priv *dvobj; struct pwrctrl_priv *pwrpriv; pwrpriv = container_of(work, struct pwrctrl_priv, rpwmtimeoutwi); dvobj = pwrctl_to_dvobj(pwrpriv); padapter = dvobj->if1; /* DBG_871X("+%s: rpwm = 0x%02X cpwm = 0x%02X\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm); */ down(&pwrpriv->lock); if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) { DBG_871X("%s: rpwm = 0x%02X cpwm = 0x%02X CPWM done!\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm); goto exit; } up(&pwrpriv->lock); if (rtw_read8(padapter, 0x100) != 0xEA) { struct reportpwrstate_parm report; report.state = PS_STATE_S2; DBG_871X("\n%s: FW already leave 32K!\n\n", __func__); cpwm_int_hdl(padapter, &report); return; } down(&pwrpriv->lock); if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) { DBG_871X("%s: cpwm =%d, nothing to do!\n", __func__, pwrpriv->cpwm); goto exit; } pwrpriv->brpwmtimeout = true; rtw_set_rpwm(padapter, pwrpriv->rpwm); pwrpriv->brpwmtimeout = false; exit: up(&pwrpriv->lock); } /* * This function is a timer handler, can't do any IO in it. */ static void pwr_rpwm_timeout_handler(struct timer_list *t) { struct pwrctrl_priv *pwrpriv = from_timer(pwrpriv, t, pwr_rpwm_timer); DBG_871X("+%s: rpwm = 0x%02X cpwm = 0x%02X\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm); if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) { DBG_871X("+%s: cpwm =%d, nothing to do!\n", __func__, pwrpriv->cpwm); return; } _set_workitem(&pwrpriv->rpwmtimeoutwi); } static __inline void register_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag) { pwrctrl->alives |= tag; } static __inline void unregister_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag) { pwrctrl->alives &= ~tag; } /* * Description: *Check if the fw_pwrstate is okay for I/O. *If not (cpwm is less than S2), then the sub-routine *will raise the cpwm to be greater than or equal to S2. * *Calling Context: Passive * *Constraint: * 1. this function will request pwrctrl->lock * * Return Value: *_SUCCESS hardware is ready for I/O *_FAIL can't I/O right now */ s32 rtw_register_task_alive(struct adapter *padapter, u32 task) { s32 res; struct pwrctrl_priv *pwrctrl; u8 pslv; res = _SUCCESS; pwrctrl = adapter_to_pwrctl(padapter); pslv = PS_STATE_S2; down(&pwrctrl->lock); register_task_alive(pwrctrl, task); if (pwrctrl->bFwCurrentInPSMode == true) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, ("%s: task = 0x%x cpwm = 0x%02x alives = 0x%08x\n", __func__, task, pwrctrl->cpwm, pwrctrl->alives)); if (pwrctrl->cpwm < pslv) { if (pwrctrl->cpwm < PS_STATE_S2) res = _FAIL; if (pwrctrl->rpwm < pslv) rtw_set_rpwm(padapter, pslv); } } up(&pwrctrl->lock); if (_FAIL == res) if (pwrctrl->cpwm >= PS_STATE_S2) res = _SUCCESS; return res; } /* * Description: *If task is done, call this func. to power down firmware again. * *Constraint: * 1. this function will request pwrctrl->lock * * Return Value: *none */ void rtw_unregister_task_alive(struct adapter *padapter, u32 task) { struct pwrctrl_priv *pwrctrl; u8 pslv; pwrctrl = adapter_to_pwrctl(padapter); pslv = PS_STATE_S0; if ((rtw_btcoex_IsBtDisabled(padapter) == false) && (rtw_btcoex_IsBtControlLps(padapter) == true)) { u8 val8; val8 = rtw_btcoex_LpsVal(padapter); if (val8 & BIT(4)) pslv = PS_STATE_S2; } down(&pwrctrl->lock); unregister_task_alive(pwrctrl, task); if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE) && (pwrctrl->bFwCurrentInPSMode == true)) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, ("%s: cpwm = 0x%02x alives = 0x%08x\n", __func__, pwrctrl->cpwm, pwrctrl->alives)); if (pwrctrl->cpwm > pslv) if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0)) rtw_set_rpwm(padapter, pslv); } up(&pwrctrl->lock); } /* * Caller: rtw_xmit_thread * * Check if the fw_pwrstate is okay for xmit. * If not (cpwm is less than S3), then the sub-routine * will raise the cpwm to be greater than or equal to S3. * * Calling Context: Passive * * Return Value: * _SUCCESS rtw_xmit_thread can write fifo/txcmd afterwards. * _FAIL rtw_xmit_thread can not do anything. */ s32 rtw_register_tx_alive(struct adapter *padapter) { s32 res; struct pwrctrl_priv *pwrctrl; u8 pslv; res = _SUCCESS; pwrctrl = adapter_to_pwrctl(padapter); pslv = PS_STATE_S2; down(&pwrctrl->lock); register_task_alive(pwrctrl, XMIT_ALIVE); if (pwrctrl->bFwCurrentInPSMode == true) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, ("rtw_register_tx_alive: cpwm = 0x%02x alives = 0x%08x\n", pwrctrl->cpwm, pwrctrl->alives)); if (pwrctrl->cpwm < pslv) { if (pwrctrl->cpwm < PS_STATE_S2) res = _FAIL; if (pwrctrl->rpwm < pslv) rtw_set_rpwm(padapter, pslv); } } up(&pwrctrl->lock); if (_FAIL == res) if (pwrctrl->cpwm >= PS_STATE_S2) res = _SUCCESS; return res; } /* * Caller: rtw_cmd_thread * * Check if the fw_pwrstate is okay for issuing cmd. * If not (cpwm should be is less than S2), then the sub-routine * will raise the cpwm to be greater than or equal to S2. * * Calling Context: Passive * * Return Value: *_SUCCESS rtw_cmd_thread can issue cmds to firmware afterwards. *_FAIL rtw_cmd_thread can not do anything. */ s32 rtw_register_cmd_alive(struct adapter *padapter) { s32 res; struct pwrctrl_priv *pwrctrl; u8 pslv; res = _SUCCESS; pwrctrl = adapter_to_pwrctl(padapter); pslv = PS_STATE_S2; down(&pwrctrl->lock); register_task_alive(pwrctrl, CMD_ALIVE); if (pwrctrl->bFwCurrentInPSMode == true) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_info_, ("rtw_register_cmd_alive: cpwm = 0x%02x alives = 0x%08x\n", pwrctrl->cpwm, pwrctrl->alives)); if (pwrctrl->cpwm < pslv) { if (pwrctrl->cpwm < PS_STATE_S2) res = _FAIL; if (pwrctrl->rpwm < pslv) rtw_set_rpwm(padapter, pslv); } } up(&pwrctrl->lock); if (_FAIL == res) if (pwrctrl->cpwm >= PS_STATE_S2) res = _SUCCESS; return res; } /* * Caller: ISR * * If ISR's txdone, * No more pkts for TX, * Then driver shall call this fun. to power down firmware again. */ void rtw_unregister_tx_alive(struct adapter *padapter) { struct pwrctrl_priv *pwrctrl; u8 pslv; pwrctrl = adapter_to_pwrctl(padapter); pslv = PS_STATE_S0; if ((rtw_btcoex_IsBtDisabled(padapter) == false) && (rtw_btcoex_IsBtControlLps(padapter) == true)) { u8 val8; val8 = rtw_btcoex_LpsVal(padapter); if (val8 & BIT(4)) pslv = PS_STATE_S2; } down(&pwrctrl->lock); unregister_task_alive(pwrctrl, XMIT_ALIVE); if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE) && (pwrctrl->bFwCurrentInPSMode == true)) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, ("%s: cpwm = 0x%02x alives = 0x%08x\n", __func__, pwrctrl->cpwm, pwrctrl->alives)); if (pwrctrl->cpwm > pslv) if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0)) rtw_set_rpwm(padapter, pslv); } up(&pwrctrl->lock); } /* * Caller: ISR * * If all commands have been done, * and no more command to do, * then driver shall call this fun. to power down firmware again. */ void rtw_unregister_cmd_alive(struct adapter *padapter) { struct pwrctrl_priv *pwrctrl; u8 pslv; pwrctrl = adapter_to_pwrctl(padapter); pslv = PS_STATE_S0; if ((rtw_btcoex_IsBtDisabled(padapter) == false) && (rtw_btcoex_IsBtControlLps(padapter) == true)) { u8 val8; val8 = rtw_btcoex_LpsVal(padapter); if (val8 & BIT(4)) pslv = PS_STATE_S2; } down(&pwrctrl->lock); unregister_task_alive(pwrctrl, CMD_ALIVE); if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE) && (pwrctrl->bFwCurrentInPSMode == true)) { RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_info_, ("%s: cpwm = 0x%02x alives = 0x%08x\n", __func__, pwrctrl->cpwm, pwrctrl->alives)); if (pwrctrl->cpwm > pslv) { if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0)) rtw_set_rpwm(padapter, pslv); } } up(&pwrctrl->lock); } void rtw_init_pwrctrl_priv(struct adapter *padapter) { struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter); sema_init(&pwrctrlpriv->lock, 1); sema_init(&pwrctrlpriv->check_32k_lock, 1); pwrctrlpriv->rf_pwrstate = rf_on; pwrctrlpriv->ips_enter_cnts = 0; pwrctrlpriv->ips_leave_cnts = 0; pwrctrlpriv->bips_processing = false; pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode; pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode; pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL; pwrctrlpriv->pwr_state_check_cnts = 0; pwrctrlpriv->bInternalAutoSuspend = false; pwrctrlpriv->bInSuspend = false; pwrctrlpriv->bkeepfwalive = false; pwrctrlpriv->LpsIdleCount = 0; pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/* PS_MODE_MIN; */ pwrctrlpriv->bLeisurePs = pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE; pwrctrlpriv->bFwCurrentInPSMode = false; pwrctrlpriv->rpwm = 0; pwrctrlpriv->cpwm = PS_STATE_S4; pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE; pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps; pwrctrlpriv->bcn_ant_mode = 0; pwrctrlpriv->dtim = 0; pwrctrlpriv->tog = 0x80; rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&pwrctrlpriv->rpwm)); _init_workitem(&pwrctrlpriv->cpwm_event, cpwm_event_callback, NULL); pwrctrlpriv->brpwmtimeout = false; pwrctrlpriv->adapter = padapter; _init_workitem(&pwrctrlpriv->rpwmtimeoutwi, rpwmtimeout_workitem_callback, NULL); timer_setup(&pwrctrlpriv->pwr_rpwm_timer, pwr_rpwm_timeout_handler, 0); timer_setup(&pwrctrlpriv->pwr_state_check_timer, pwr_state_check_handler, 0); pwrctrlpriv->wowlan_mode = false; pwrctrlpriv->wowlan_ap_mode = false; #ifdef CONFIG_PNO_SUPPORT pwrctrlpriv->pno_inited = false; pwrctrlpriv->pnlo_info = NULL; pwrctrlpriv->pscan_info = NULL; pwrctrlpriv->pno_ssid_list = NULL; pwrctrlpriv->pno_in_resume = true; #endif } void rtw_free_pwrctrl_priv(struct adapter *adapter) { #ifdef CONFIG_PNO_SUPPORT if (pwrctrlpriv->pnlo_info != NULL) printk("****** pnlo_info memory leak********\n"); if (pwrctrlpriv->pscan_info != NULL) printk("****** pscan_info memory leak********\n"); if (pwrctrlpriv->pno_ssid_list != NULL) printk("****** pno_ssid_list memory leak********\n"); #endif } inline void rtw_set_ips_deny(struct adapter *padapter, u32 ms) { struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ms); } /* * rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend * @adapter: pointer to struct adapter structure * @ips_deffer_ms: the ms wiil prevent from falling into IPS after wakeup * Return _SUCCESS or _FAIL */ int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *caller) { struct dvobj_priv *dvobj = adapter_to_dvobj(padapter); struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj); struct mlme_priv *pmlmepriv; int ret = _SUCCESS; unsigned long start = jiffies; unsigned long deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms); /* for LPS */ LeaveAllPowerSaveMode(padapter); /* IPS still bound with primary adapter */ padapter = GET_PRIMARY_ADAPTER(padapter); pmlmepriv = &padapter->mlmepriv; if (time_before(pwrpriv->ips_deny_time, deny_time)) pwrpriv->ips_deny_time = deny_time; if (pwrpriv->ps_processing) { DBG_871X("%s wait ps_processing...\n", __func__); while (pwrpriv->ps_processing && jiffies_to_msecs(jiffies - start) <= 3000) msleep(10); if (pwrpriv->ps_processing) DBG_871X("%s wait ps_processing timeout\n", __func__); else DBG_871X("%s wait ps_processing done\n", __func__); } if (pwrpriv->bInternalAutoSuspend == false && pwrpriv->bInSuspend) { DBG_871X("%s wait bInSuspend...\n", __func__); while (pwrpriv->bInSuspend && jiffies_to_msecs(jiffies - start) <= 3000 ) { msleep(10); } if (pwrpriv->bInSuspend) DBG_871X("%s wait bInSuspend timeout\n", __func__); else DBG_871X("%s wait bInSuspend done\n", __func__); } /* System suspend is not allowed to wakeup */ if ((pwrpriv->bInternalAutoSuspend == false) && (true == pwrpriv->bInSuspend)) { ret = _FAIL; goto exit; } /* block??? */ if ((pwrpriv->bInternalAutoSuspend == true) && (padapter->net_closed == true)) { ret = _FAIL; goto exit; } /* I think this should be check in IPS, LPS, autosuspend functions... */ if (check_fwstate(pmlmepriv, _FW_LINKED) == true) { ret = _SUCCESS; goto exit; } if (rf_off == pwrpriv->rf_pwrstate) { { DBG_8192C("%s call ips_leave....\n", __func__); if (_FAIL == ips_leave(padapter)) { DBG_8192C("======> ips_leave fail.............\n"); ret = _FAIL; goto exit; } } } /* TODO: the following checking need to be merged... */ if (padapter->bDriverStopped || !padapter->bup || !padapter->hw_init_completed ) { DBG_8192C("%s: bDriverStopped =%d, bup =%d, hw_init_completed =%u\n" , caller , padapter->bDriverStopped , padapter->bup , padapter->hw_init_completed); ret = false; goto exit; } exit: deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms); if (time_before(pwrpriv->ips_deny_time, deny_time)) pwrpriv->ips_deny_time = deny_time; return ret; } int rtw_pm_set_lps(struct adapter *padapter, u8 mode) { int ret = 0; struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter); if (mode < PS_MODE_NUM) { if (pwrctrlpriv->power_mgnt != mode) { if (PS_MODE_ACTIVE == mode) LeaveAllPowerSaveMode(padapter); else pwrctrlpriv->LpsIdleCount = 2; pwrctrlpriv->power_mgnt = mode; pwrctrlpriv->bLeisurePs = pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE; } } else ret = -EINVAL; return ret; } int rtw_pm_set_ips(struct adapter *padapter, u8 mode) { struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter); if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) { rtw_ips_mode_req(pwrctrlpriv, mode); DBG_871X("%s %s\n", __func__, mode == IPS_NORMAL?"IPS_NORMAL":"IPS_LEVEL_2"); return 0; } else if (mode == IPS_NONE) { rtw_ips_mode_req(pwrctrlpriv, mode); DBG_871X("%s %s\n", __func__, "IPS_NONE"); if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter))) return -EFAULT; } else return -EINVAL; return 0; } /* * ATTENTION: *This function will request pwrctrl LOCK! */ void rtw_ps_deny(struct adapter *padapter, enum PS_DENY_REASON reason) { struct pwrctrl_priv *pwrpriv; /* DBG_871X("+" FUNC_ADPT_FMT ": Request PS deny for %d (0x%08X)\n", */ /* FUNC_ADPT_ARG(padapter), reason, BIT(reason)); */ pwrpriv = adapter_to_pwrctl(padapter); down(&pwrpriv->lock); if (pwrpriv->ps_deny & BIT(reason)) { DBG_871X(FUNC_ADPT_FMT ": [WARNING] Reason %d had been set before!!\n", FUNC_ADPT_ARG(padapter), reason); } pwrpriv->ps_deny |= BIT(reason); up(&pwrpriv->lock); /* DBG_871X("-" FUNC_ADPT_FMT ": Now PS deny for 0x%08X\n", */ /* FUNC_ADPT_ARG(padapter), pwrpriv->ps_deny); */ } /* * ATTENTION: *This function will request pwrctrl LOCK! */ void rtw_ps_deny_cancel(struct adapter *padapter, enum PS_DENY_REASON reason) { struct pwrctrl_priv *pwrpriv; /* DBG_871X("+" FUNC_ADPT_FMT ": Cancel PS deny for %d(0x%08X)\n", */ /* FUNC_ADPT_ARG(padapter), reason, BIT(reason)); */ pwrpriv = adapter_to_pwrctl(padapter); down(&pwrpriv->lock); if ((pwrpriv->ps_deny & BIT(reason)) == 0) { DBG_871X(FUNC_ADPT_FMT ": [ERROR] Reason %d had been canceled before!!\n", FUNC_ADPT_ARG(padapter), reason); } pwrpriv->ps_deny &= ~BIT(reason); up(&pwrpriv->lock); /* DBG_871X("-" FUNC_ADPT_FMT ": Now PS deny for 0x%08X\n", */ /* FUNC_ADPT_ARG(padapter), pwrpriv->ps_deny); */ } /* * ATTENTION: *Before calling this function pwrctrl lock should be occupied already, *otherwise it may return incorrect value. */ u32 rtw_ps_deny_get(struct adapter *padapter) { u32 deny; deny = adapter_to_pwrctl(padapter)->ps_deny; return deny; }