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- /******************************************************************************
- *
- * 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 <osdep_service.h>
- #include <drv_types.h>
- #include <osdep_intf.h>
- #include <rtl8723a_cmd.h>
- #include <rtw_sreset.h>
- #include <rtl8723a_bt_intf.h>
- #include <usb_ops_linux.h>
- 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;
- }
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