/****************************************************************************** * * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * ******************************************************************************/ #define _RTW_PWRCTRL_C_ #include #include #include #include void ips_enter(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; struct xmit_priv *pxmit_priv = &padapter->xmitpriv; if (padapter->registrypriv.mp_mode == 1) return; if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF || pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) { DBG_88E_LEVEL(_drv_info_, "There are some pkts to transmit\n"); DBG_88E_LEVEL(_drv_info_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n", pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt); return; } _enter_pwrlock(&pwrpriv->lock); pwrpriv->bips_processing = true; /* syn ips_mode with request */ pwrpriv->ips_mode = pwrpriv->ips_mode_req; pwrpriv->ips_enter_cnts++; DBG_88E("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts); if (rf_off == pwrpriv->change_rfpwrstate) { pwrpriv->bpower_saving = true; DBG_88E_LEVEL(_drv_info_, "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; _exit_pwrlock(&pwrpriv->lock); } int ips_leave(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; struct security_priv *psecuritypriv = &(padapter->securitypriv); struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); int result = _SUCCESS; int keyid; _enter_pwrlock(&pwrpriv->lock); if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) { pwrpriv->bips_processing = true; pwrpriv->change_rfpwrstate = rf_on; pwrpriv->ips_leave_cnts++; DBG_88E("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts); result = rtw_ips_pwr_up(padapter); if (result == _SUCCESS) { pwrpriv->rf_pwrstate = rf_on; } DBG_88E_LEVEL(_drv_info_, "nolinked power save leave\n"); if ((_WEP40_ == psecuritypriv->dot11PrivacyAlgrthm) || (_WEP104_ == psecuritypriv->dot11PrivacyAlgrthm)) { DBG_88E("==>%s, channel(%d), processing(%x)\n", __func__, padapter->mlmeextpriv.cur_channel, pwrpriv->bips_processing); set_channel_bwmode(padapter, padapter->mlmeextpriv.cur_channel, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20); for (keyid = 0; keyid < 4; keyid++) { if (pmlmepriv->key_mask & BIT(keyid)) { if (keyid == psecuritypriv->dot11PrivacyKeyIndex) result = rtw_set_key(padapter, psecuritypriv, keyid, 1); else result = rtw_set_key(padapter, psecuritypriv, keyid, 0); } } } DBG_88E("==> ips_leave.....LED(0x%08x)...\n", rtw_read32(padapter, 0x4c)); pwrpriv->bips_processing = false; pwrpriv->bkeepfwalive = false; pwrpriv->bpower_saving = false; } _exit_pwrlock(&pwrpriv->lock); return result; } static bool rtw_pwr_unassociated_idle(struct adapter *adapter) { struct adapter *buddy = adapter->pbuddy_adapter; struct mlme_priv *pmlmepriv = &(adapter->mlmepriv); #ifdef CONFIG_88EU_P2P struct wifidirect_info *pwdinfo = &(adapter->wdinfo); #endif bool ret = false; if (adapter->pwrctrlpriv.ips_deny_time >= jiffies) 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_UNDER_WPS) || check_fwstate(pmlmepriv, WIFI_AP_STATE) || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE) || #if defined(CONFIG_88EU_P2P) !rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE)) #else 0) #endif goto exit; /* consider buddy, if exist */ if (buddy) { struct mlme_priv *b_pmlmepriv = &(buddy->mlmepriv); #ifdef CONFIG_88EU_P2P struct wifidirect_info *b_pwdinfo = &(buddy->wdinfo); #endif 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) || #if defined(CONFIG_88EU_P2P) !rtw_p2p_chk_state(b_pwdinfo, P2P_STATE_NONE)) #else 0) #endif goto exit; } ret = true; exit: return ret; } void rtw_ps_processor(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); enum rt_rf_power_state rfpwrstate; pwrpriv->ps_processing = true; if (pwrpriv->bips_processing) goto exit; if (padapter->pwrctrlpriv.bHWPwrPindetect) { rfpwrstate = RfOnOffDetect(padapter); DBG_88E("@@@@- #2 %s==> rfstate:%s\n", __func__, (rfpwrstate == rf_on) ? "rf_on" : "rf_off"); if (rfpwrstate != pwrpriv->rf_pwrstate) { if (rfpwrstate == rf_off) { pwrpriv->change_rfpwrstate = rf_off; pwrpriv->brfoffbyhw = true; padapter->bCardDisableWOHSM = true; rtw_hw_suspend(padapter); } else { pwrpriv->change_rfpwrstate = rf_on; rtw_hw_resume(padapter); } DBG_88E("current rf_pwrstate(%s)\n", (pwrpriv->rf_pwrstate == rf_off) ? "rf_off" : "rf_on"); } pwrpriv->pwr_state_check_cnts++; } if (pwrpriv->ips_mode_req == IPS_NONE) goto exit; if (!rtw_pwr_unassociated_idle(padapter)) goto exit; if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0)) { DBG_88E("==>%s .fw_state(%x)\n", __func__, get_fwstate(pmlmepriv)); pwrpriv->change_rfpwrstate = rf_off; ips_enter(padapter); } exit: rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv); pwrpriv->ps_processing = false; return; } static void pwr_state_check_handler(void *FunctionContext) { struct adapter *padapter = (struct adapter *)FunctionContext; rtw_ps_cmd(padapter); } /* * * 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 = &padapter->pwrctrlpriv; pslv = PS_STATE(pslv); if (pwrpriv->btcoex_rfon) { if (pslv < PS_STATE_S4) pslv = PS_STATE_S3; } if ((pwrpriv->rpwm == pslv)) { 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) || (!padapter->hw_init_completed)) { 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) { 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; RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, ("rtw_set_rpwm: rpwm=0x%02x cpwm=0x%02x\n", rpwm, pwrpriv->cpwm)); pwrpriv->rpwm = pslv; rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm)); pwrpriv->tog += 0x80; pwrpriv->cpwm = pslv; } static u8 PS_RDY_CHECK(struct adapter *padapter) { u32 curr_time, delta_time; struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); curr_time = jiffies; delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp; if (delta_time < LPS_DELAY_TIME) return false; if ((check_fwstate(pmlmepriv, _FW_LINKED) == false) || (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) || (check_fwstate(pmlmepriv, WIFI_AP_STATE)) || (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) || (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) return false; if (pwrpriv->bInSuspend) return false; if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) { DBG_88E("Group handshake still in progress !!!\n"); return false; } return true; } void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode) { struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; #ifdef CONFIG_88EU_P2P struct wifidirect_info *pwdinfo = &(padapter->wdinfo); #endif /* CONFIG_88EU_P2P */ 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; if ((pwrpriv->smart_ps == smart_ps) && (pwrpriv->bcn_ant_mode == bcn_ant_mode)) return; } /* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */ if (ps_mode == PS_MODE_ACTIVE) { #ifdef CONFIG_88EU_P2P if (pwdinfo->opp_ps == 0) { DBG_88E("rtw_set_ps_mode: Leave 802.11 power save\n"); pwrpriv->pwr_mode = ps_mode; rtw_set_rpwm(padapter, PS_STATE_S4); rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode)); pwrpriv->bFwCurrentInPSMode = false; } } else { #endif /* CONFIG_88EU_P2P */ if (PS_RDY_CHECK(padapter)) { DBG_88E("%s: Enter 802.11 power save\n", __func__); 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)); #ifdef CONFIG_88EU_P2P /* Set CTWindow after LPS */ if (pwdinfo->opp_ps == 1) p2p_ps_wk_cmd(padapter, P2P_PS_ENABLE, 0); #endif /* CONFIG_88EU_P2P */ rtw_set_rpwm(padapter, PS_STATE_S2); } } } /* * Return: * 0: Leave OK * -1: Timeout * -2: Other error */ s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms) { u32 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 (bAwake) break; if (padapter->bSurpriseRemoved) { err = -2; DBG_88E("%s: device surprise removed!!\n", __func__); break; } if (rtw_get_passing_time_ms(start_time) > delay_ms) { err = -1; DBG_88E("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms); break; } rtw_usleep_os(100); } return err; } /* */ /* Description: */ /* Enter the leisure power save mode. */ /* */ void LPS_Enter(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; if (PS_RDY_CHECK(padapter) == 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) { pwrpriv->bpower_saving = true; DBG_88E("%s smart_ps:%d\n", __func__, pwrpriv->smart_ps); /* For Tenda W311R IOT issue */ rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, pwrpriv->smart_ps, 0x40); } } else { pwrpriv->LpsIdleCount++; } } } #define LPS_LEAVE_TIMEOUT_MS 100 /* Description: */ /* Leave the leisure power save mode. */ void LPS_Leave(struct adapter *padapter) { struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; if (pwrpriv->bLeisurePs) { if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) { rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0x40); if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS); } } pwrpriv->bpower_saving = false; } /* */ /* 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 mlme_priv *pmlmepriv = &(Adapter->mlmepriv); u8 enqueue = 0; if (check_fwstate(pmlmepriv, _FW_LINKED)) { /* connect */ p2p_ps_wk_cmd(Adapter, P2P_PS_DISABLE, enqueue); rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue); } } void rtw_init_pwrctrl_priv(struct adapter *padapter) { struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv; _init_pwrlock(&pwrctrlpriv->lock); 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; if (padapter->registrypriv.mp_mode == 1) pwrctrlpriv->power_mgnt = PS_MODE_ACTIVE ; else pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/* PS_MODE_MIN; */ pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false; 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->tog = 0x80; pwrctrlpriv->btcoex_rfon = false; _init_timer(&(pwrctrlpriv->pwr_state_check_timer), padapter->pnetdev, pwr_state_check_handler, (u8 *)padapter); } void rtw_free_pwrctrl_priv(struct adapter *adapter) { struct pwrctrl_priv *pwrctrlpriv = &adapter->pwrctrlpriv; _free_pwrlock(&pwrctrlpriv->lock); } u8 rtw_interface_ps_func(struct adapter *padapter, enum hal_intf_ps_func efunc_id, u8 *val) { u8 bResult = true; rtw_hal_intf_ps_func(padapter, efunc_id, val); return bResult; } inline void rtw_set_ips_deny(struct adapter *padapter, u32 ms) { struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(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 pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; struct mlme_priv *pmlmepriv = &padapter->mlmepriv; int ret = _SUCCESS; u32 start = jiffies; if (pwrpriv->ips_deny_time < jiffies + rtw_ms_to_systime(ips_deffer_ms)) pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(ips_deffer_ms); if (pwrpriv->ps_processing) { DBG_88E("%s wait ps_processing...\n", __func__); while (pwrpriv->ps_processing && rtw_get_passing_time_ms(start) <= 3000) rtw_msleep_os(10); if (pwrpriv->ps_processing) DBG_88E("%s wait ps_processing timeout\n", __func__); else DBG_88E("%s wait ps_processing done\n", __func__); } /* System suspend is not allowed to wakeup */ if ((!pwrpriv->bInternalAutoSuspend) && pwrpriv->bInSuspend) { while (pwrpriv->bInSuspend && (rtw_get_passing_time_ms(start) <= 3000 || (rtw_get_passing_time_ms(start) <= 500))) rtw_msleep_os(10); if (pwrpriv->bInSuspend) DBG_88E("%s wait bInSuspend timeout\n", __func__); else DBG_88E("%s wait bInSuspend done\n", __func__); } /* block??? */ if ((pwrpriv->bInternalAutoSuspend) && (padapter->net_closed)) { ret = _FAIL; goto exit; } /* I think this should be check in IPS, LPS, autosuspend functions... */ if (check_fwstate(pmlmepriv, _FW_LINKED)) { ret = _SUCCESS; goto exit; } if (rf_off == pwrpriv->rf_pwrstate) { DBG_88E("%s call ips_leave....\n", __func__); if (_FAIL == ips_leave(padapter)) { DBG_88E("======> 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_88E("%s: bDriverStopped=%d, bup=%d, hw_init_completed =%u\n" , caller , padapter->bDriverStopped , padapter->bup , padapter->hw_init_completed); ret = false; goto exit; } exit: if (pwrpriv->ips_deny_time < jiffies + rtw_ms_to_systime(ips_deffer_ms)) pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(ips_deffer_ms); return ret; } int rtw_pm_set_lps(struct adapter *padapter, u8 mode) { int ret = 0; struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv; 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 = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false; } } else { ret = -EINVAL; } return ret; } int rtw_pm_set_ips(struct adapter *padapter, u8 mode) { struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv; if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) { rtw_ips_mode_req(pwrctrlpriv, mode); DBG_88E("%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_88E("%s %s\n", __func__, "IPS_NONE"); if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter))) return -EFAULT; } else { return -EINVAL; } return 0; }