diff options
Diffstat (limited to 'drivers/staging/rtl8723bs/core/rtw_pwrctrl.c')
| -rw-r--r-- | drivers/staging/rtl8723bs/core/rtw_pwrctrl.c | 1421 |
1 files changed, 1421 insertions, 0 deletions
diff --git a/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c b/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c new file mode 100644 index 0000000..f708dbf --- /dev/null +++ b/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c @@ -0,0 +1,1421 @@ +/****************************************************************************** + * + * 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. + * + ******************************************************************************/ +#define _RTW_PWRCTRL_C_ + +#include <drv_types.h> +#include <rtw_debug.h> +#include <hal_data.h> +#include <linux/jiffies.h> + + +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_LEVEL(_drv_always_, "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_LEVEL(_drv_always_, "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; +} + +void pwr_state_check_handler(RTW_TIMER_HDL_ARGS); +void pwr_state_check_handler(RTW_TIMER_HDL_ARGS) +{ + struct adapter *padapter = (struct adapter *)FunctionContext; + rtw_ps_cmd(padapter); +} + +void traffic_check_for_leave_lps(struct adapter *padapter, u8 tx, u32 tx_packets) +{ + static unsigned long start_time = 0; + static u32 xmit_cnt = 0; + 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; + + yield(); + + 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(void *FunctionContext) +{ + struct adapter *padapter; + struct pwrctrl_priv *pwrpriv; + + + padapter = (struct adapter *)FunctionContext; + pwrpriv = adapter_to_pwrctl(padapter); + 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 = (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->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; + _init_workitem(&pwrctrlpriv->rpwmtimeoutwi, rpwmtimeout_workitem_callback, NULL); + _init_timer(&pwrctrlpriv->pwr_rpwm_timer, padapter->pnetdev, pwr_rpwm_timeout_handler, padapter); + + rtw_init_timer(&pwrctrlpriv->pwr_state_check_timer, padapter, pwr_state_check_handler); + + 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) +{ + /* memset((unsigned char *)pwrctrlpriv, 0, sizeof(struct pwrctrl_priv)); */ + +#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 = (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 = 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; +} |
