X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fstaging%2Frtl8723au%2Fcore%2Frtw_pwrctrl.c;fp=kernel%2Fdrivers%2Fstaging%2Frtl8723au%2Fcore%2Frtw_pwrctrl.c;h=7488a104935b037427adbab657bbabb6607f9a3d;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git diff --git a/kernel/drivers/staging/rtl8723au/core/rtw_pwrctrl.c b/kernel/drivers/staging/rtl8723au/core/rtw_pwrctrl.c new file mode 100644 index 000000000..7488a1049 --- /dev/null +++ b/kernel/drivers/staging/rtl8723au/core/rtw_pwrctrl.c @@ -0,0 +1,606 @@ +/****************************************************************************** + * + * 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 +#include +#include +#include +#include + +#include +#include + +void ips_enter23a(struct rtw_adapter *padapter) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + + down(&pwrpriv->lock); + + pwrpriv->bips_processing = true; + + /* syn ips_mode with request */ + pwrpriv->ips_mode = pwrpriv->ips_mode_req; + + pwrpriv->ips_enter23a_cnts++; + DBG_8723A("==>ips_enter23a cnts:%d\n", pwrpriv->ips_enter23a_cnts); + rtl8723a_BT_disable_coexist(padapter); + + if (pwrpriv->change_rfpwrstate == rf_off) { + pwrpriv->bpower_saving = true; + DBG_8723A_LEVEL(_drv_always_, "nolinked power save enter\n"); + + if (pwrpriv->ips_mode == IPS_LEVEL_2) + pwrpriv->bkeepfwalive = true; + + rtw_ips_pwr_down23a(padapter); + pwrpriv->rf_pwrstate = rf_off; + } + pwrpriv->bips_processing = false; + + up(&pwrpriv->lock); +} + +int ips_leave23a(struct rtw_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; + + down(&pwrpriv->lock); + + if (pwrpriv->rf_pwrstate == rf_off && !pwrpriv->bips_processing) { + pwrpriv->bips_processing = true; + pwrpriv->change_rfpwrstate = rf_on; + pwrpriv->ips_leave23a_cnts++; + DBG_8723A("==>ips_leave23a cnts:%d\n", + pwrpriv->ips_leave23a_cnts); + + result = rtw_ips_pwr_up23a(padapter); + if (result == _SUCCESS) + pwrpriv->rf_pwrstate = rf_on; + + DBG_8723A_LEVEL(_drv_always_, "nolinked power save leave\n"); + + if (psecuritypriv->dot11PrivacyAlgrthm == + WLAN_CIPHER_SUITE_WEP40 || + psecuritypriv->dot11PrivacyAlgrthm == + WLAN_CIPHER_SUITE_WEP104) { + DBG_8723A("==>%s, channel(%d), processing(%x)\n", + __func__, padapter->mlmeextpriv.cur_channel, + pwrpriv->bips_processing); + set_channel_bwmode23a(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_key23a(padapter, psecuritypriv, keyid, 1); + else + result = rtw_set_key23a(padapter, psecuritypriv, keyid, 0); + } + } + } + + DBG_8723A("==> ips_leave23a.....LED(0x%08x)...\n", + rtl8723au_read32(padapter, 0x4c)); + pwrpriv->bips_processing = false; + + pwrpriv->bkeepfwalive = false; + pwrpriv->bpower_saving = false; + } + + up(&pwrpriv->lock); + + return result; +} + + +static bool rtw_pwr_unassociated_idle(struct rtw_adapter *adapter) +{ + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct xmit_priv *pxmit_priv = &adapter->xmitpriv; + + bool ret = false; + + if (time_after_eq(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_AP_STATE) || + check_fwstate(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_8723A_LEVEL(_drv_always_, + "There are some pkts to transmit\n"); + DBG_8723A_LEVEL(_drv_info_, "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; +} + +void rtw_ps_processor23a(struct rtw_adapter *padapter) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + + pwrpriv->ps_processing = true; + + if (pwrpriv->bips_processing == true) + goto exit; + + 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_8723A("==>%s .fw_state(%x)\n", __func__, + get_fwstate(pmlmepriv)); + pwrpriv->change_rfpwrstate = rf_off; + ips_enter23a(padapter); + } +exit: + rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv); + pwrpriv->ps_processing = false; +} + +static void pwr_state_check_handler(unsigned long data) +{ + struct rtw_adapter *padapter = (struct rtw_adapter *)data; + + rtw_ps_cmd23a(padapter); +} + +/* + * + * Parameters + * padapter + * pslv power state level, only could be PS_STATE_S0 ~ PS_STATE_S4 + * + */ +void rtw_set_rpwm23a(struct rtw_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 == 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; + RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, + "rtw_set_rpwm23a: rpwm = 0x%02x cpwm = 0x%02x\n", + rpwm, pwrpriv->cpwm); + + pwrpriv->rpwm = pslv; + + rtl8723a_set_rpwm(padapter, rpwm); + + pwrpriv->tog += 0x80; + pwrpriv->cpwm = pslv; +} + +static bool PS_RDY_CHECK(struct rtw_adapter *padapter) +{ + unsigned long delta_time; + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + + delta_time = jiffies - pwrpriv->DelayLPSLastTimeStamp; + + if (delta_time < LPS_DELAY_TIME) + return false; + + if (!check_fwstate(pmlmepriv, _FW_LINKED) || + 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) { + DBG_8723A("Group handshake still in progress !!!\n"); + return false; + } + if (!rtw_cfg80211_pwr_mgmt(padapter)) + return false; + + return true; +} + +void rtw_set_ps_mode23a(struct rtw_adapter *padapter, u8 ps_mode, + u8 smart_ps, u8 bcn_ant_mode) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + + 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 (ps_mode == PS_MODE_ACTIVE) { + DBG_8723A("rtw_set_ps_mode23a: Leave 802.11 power save\n"); + + pwrpriv->pwr_mode = ps_mode; + rtw_set_rpwm23a(padapter, PS_STATE_S4); + rtl8723a_set_FwPwrMode_cmd(padapter, ps_mode); + pwrpriv->bFwCurrentInPSMode = false; + } else { + if (PS_RDY_CHECK(padapter) || + rtl8723a_BT_using_antenna_1(padapter)) { + DBG_8723A("%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; + rtl8723a_set_FwPwrMode_cmd(padapter, ps_mode); + + rtw_set_rpwm23a(padapter, PS_STATE_S2); + } + } +} + +/* + * Return: + * 0: Leave OK + * -1: Timeout + * -2: Other error + */ +s32 LPS_RF_ON_check23a(struct rtw_adapter *padapter, u32 delay_ms) +{ + unsigned long start_time, end_time; + u8 bAwake = false; + s32 err = 0; + + start_time = jiffies; + end_time = start_time + msecs_to_jiffies(delay_ms); + + while (1) { + bAwake = rtl8723a_get_fwlps_rf_on(padapter); + if (bAwake == true) + break; + + if (padapter->bSurpriseRemoved == true) { + err = -2; + DBG_8723A("%s: device surprise removed!!\n", __func__); + break; + } + + if (time_after(jiffies, end_time)) { + err = -1; + DBG_8723A("%s: Wait for FW LPS leave more than %u " + "ms!\n", __func__, delay_ms); + break; + } + udelay(100); + } + + return err; +} + +/* Description: */ +/* Enter the leisure power save mode. */ +void LPS_Enter23a(struct rtw_adapter *padapter) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + + if (!PS_RDY_CHECK(padapter)) + 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_8723A("%s smart_ps:%d\n", __func__, + pwrpriv->smart_ps); + /* For Tenda W311R IOT issue */ + rtw_set_ps_mode23a(padapter, + pwrpriv->power_mgnt, + pwrpriv->smart_ps, 0); + } + } else + pwrpriv->LpsIdleCount++; + } +} + +/* Description: */ +/* Leave the leisure power save mode. */ +void LPS_Leave23a(struct rtw_adapter *padapter) +{ +#define LPS_LEAVE_TIMEOUT_MS 100 + + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + + if (pwrpriv->bLeisurePs) { + if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) { + rtw_set_ps_mode23a(padapter, PS_MODE_ACTIVE, 0, 0); + + if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) + LPS_RF_ON_check23a(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 LeaveAllPowerSaveMode23a(struct rtw_adapter *Adapter) +{ + struct mlme_priv *pmlmepriv = &Adapter->mlmepriv; + u8 enqueue = 0; + + /* DBG_8723A("%s.....\n", __func__); */ + if (check_fwstate(pmlmepriv, _FW_LINKED)) + rtw_lps_ctrl_wk_cmd23a(Adapter, LPS_CTRL_LEAVE, enqueue); +} + +void rtw_init_pwrctrl_priv23a(struct rtw_adapter *padapter) +{ + struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv; + + sema_init(&pwrctrlpriv->lock, 1); + pwrctrlpriv->rf_pwrstate = rf_on; + pwrctrlpriv->ips_enter23a_cnts = 0; + pwrctrlpriv->ips_leave23a_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->bInSuspend = false; + pwrctrlpriv->bkeepfwalive = false; + + pwrctrlpriv->LpsIdleCount = 0; + + /* PS_MODE_MIN; */ + pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt; + 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; + + setup_timer(&pwrctrlpriv->pwr_state_check_timer, + pwr_state_check_handler, (unsigned long)padapter); +} + +void rtw_free_pwrctrl_priv(struct rtw_adapter *adapter) +{ +} + +inline void rtw_set_ips_deny23a(struct rtw_adapter *padapter, u32 ms) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + + 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 _adapter structure +* @ips_deffer_ms: the ms will prevent from falling into IPS after wakeup +* Return _SUCCESS or _FAIL +*/ + +int _rtw_pwr_wakeup23a(struct rtw_adapter *padapter, u32 ips_deffer_ms, const char *caller) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + int ret = _SUCCESS; + unsigned long start = jiffies; + unsigned long new_deny_time; + + new_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms); + + if (time_before(pwrpriv->ips_deny_time, new_deny_time)) + pwrpriv->ips_deny_time = new_deny_time; + + if (pwrpriv->ps_processing) { + DBG_8723A("%s wait ps_processing...\n", __func__); + while (pwrpriv->ps_processing && + jiffies_to_msecs(jiffies - start) <= 3000) + msleep(10); + if (pwrpriv->ps_processing) + DBG_8723A("%s wait ps_processing timeout\n", __func__); + else + DBG_8723A("%s wait ps_processing done\n", __func__); + } + + if (rtw_sreset_inprogress(padapter)) { + DBG_8723A("%s wait sreset_inprogress...\n", __func__); + while (rtw_sreset_inprogress(padapter) && + jiffies_to_msecs(jiffies - start) <= 4000) + msleep(10); + if (rtw_sreset_inprogress(padapter)) + DBG_8723A("%s wait sreset_inprogress timeout\n", + __func__); + else + DBG_8723A("%s wait sreset_inprogress done\n", __func__); + } + + if (pwrpriv->bInSuspend) { + DBG_8723A("%s wait bInSuspend...\n", __func__); + while (pwrpriv->bInSuspend && + (jiffies_to_msecs(jiffies - start) <= 3000)) { + msleep(10); + } + if (pwrpriv->bInSuspend) + DBG_8723A("%s wait bInSuspend timeout\n", __func__); + else + DBG_8723A("%s wait bInSuspend done\n", __func__); + } + + /* System suspend is not allowed to wakeup */ + if (pwrpriv->bInSuspend) { + 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_8723A("%s call ips_leave23a....\n", __func__); + if (ips_leave23a(padapter)== _FAIL) { + DBG_8723A("======> ips_leave23a fail.............\n"); + ret = _FAIL; + goto exit; + } + } + + /* TODO: the following checking need to be merged... */ + if (padapter->bDriverStopped || !padapter->bup || + !padapter->hw_init_completed) { + DBG_8723A("%s: bDriverStopped =%d, bup =%d, hw_init_completed " + "=%u\n", caller, padapter->bDriverStopped, + padapter->bup, padapter->hw_init_completed); + ret = _FAIL; + goto exit; + } + +exit: + new_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms); + if (time_before(pwrpriv->ips_deny_time, new_deny_time)) + pwrpriv->ips_deny_time = new_deny_time; + return ret; +} + +int rtw_pm_set_lps23a(struct rtw_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) + LeaveAllPowerSaveMode23a(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_ips23a(struct rtw_adapter *padapter, u8 mode) +{ + struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv; + + if (mode != IPS_NORMAL && mode != IPS_LEVEL_2 && mode != IPS_NONE) + return -EINVAL; + + pwrctrlpriv->ips_mode_req = mode; + if (mode == IPS_NONE) { + DBG_8723A("%s %s\n", __func__, "IPS_NONE"); + if (padapter->bSurpriseRemoved == 0 && + rtw_pwr_wakeup(padapter) == _FAIL) + return -EFAULT; + } + + return 0; +}