From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/staging/r8188eu/core/rtw_pwrctrl.c | 448 +++++++++++++++++++++++++++++ 1 file changed, 448 insertions(+) create mode 100644 drivers/staging/r8188eu/core/rtw_pwrctrl.c (limited to 'drivers/staging/r8188eu/core/rtw_pwrctrl.c') diff --git a/drivers/staging/r8188eu/core/rtw_pwrctrl.c b/drivers/staging/r8188eu/core/rtw_pwrctrl.c new file mode 100644 index 000000000..5290ac36f --- /dev/null +++ b/drivers/staging/r8188eu/core/rtw_pwrctrl.c @@ -0,0 +1,448 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright(c) 2007 - 2012 Realtek Corporation. */ + +#define _RTW_PWRCTRL_C_ + +#include "../include/osdep_service.h" +#include "../include/drv_types.h" +#include "../include/osdep_intf.h" +#include "../include/linux/usb.h" + +void ips_enter(struct adapter *padapter) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + struct xmit_priv *pxmit_priv = &padapter->xmitpriv; + + if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF || + pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) + return; + + mutex_lock(&pwrpriv->lock); + + pwrpriv->bips_processing = true; + + /* syn ips_mode with request */ + pwrpriv->ips_mode = pwrpriv->ips_mode_req; + + pwrpriv->ips_enter_cnts++; + if (rf_off == pwrpriv->change_rfpwrstate) { + pwrpriv->bpower_saving = true; + + if (pwrpriv->ips_mode == IPS_LEVEL_2) + pwrpriv->bkeepfwalive = true; + + rtw_ips_pwr_down(padapter); + pwrpriv->rf_pwrstate = rf_off; + } + pwrpriv->bips_processing = false; + + mutex_unlock(&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; + + mutex_lock(&pwrpriv->lock); + + if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) { + pwrpriv->bips_processing = true; + pwrpriv->change_rfpwrstate = rf_on; + pwrpriv->ips_leave_cnts++; + + result = rtw_ips_pwr_up(padapter); + if (result == _SUCCESS) { + pwrpriv->rf_pwrstate = rf_on; + } + + if ((psecuritypriv->dot11PrivacyAlgrthm == _WEP40_) || (psecuritypriv->dot11PrivacyAlgrthm == _WEP104_)) { + 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); + } + } + } + + pwrpriv->bips_processing = false; + + pwrpriv->bkeepfwalive = false; + pwrpriv->bpower_saving = false; + } + + mutex_unlock(&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; + struct wifidirect_info *pwdinfo = &adapter->wdinfo; + 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_UNDER_WPS) || + check_fwstate(pmlmepriv, WIFI_AP_STATE) || + check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE | WIFI_ADHOC_STATE) || + !rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE)) + goto exit; + + /* consider buddy, if exist */ + if (buddy) { + struct mlme_priv *b_pmlmepriv = &buddy->mlmepriv; + struct wifidirect_info *b_pwdinfo = &buddy->wdinfo; + + 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) || + !rtw_p2p_chk_state(b_pwdinfo, P2P_STATE_NONE)) + goto exit; + } + ret = true; + +exit: + return ret; +} + +void rtw_ps_processor(struct adapter *padapter) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + + pwrpriv->ps_processing = true; + + if (pwrpriv->bips_processing) + 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->change_rfpwrstate = rf_off; + ips_enter(padapter); + } +exit: + rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv); + pwrpriv->ps_processing = false; +} + +static void pwr_state_check_handler(struct timer_list *t) +{ + struct adapter *padapter = + from_timer(padapter, t, + pwrctrlpriv.pwr_state_check_timer); + rtw_ps_cmd(padapter); +} + +static bool 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) || + 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) + return false; + return true; +} + +void rtw_set_firmware_ps_mode(struct adapter *adapter, u8 mode) +{ + struct hal_data_8188e *haldata = &adapter->haldata; + struct odm_dm_struct *odmpriv = &haldata->odmpriv; + + /* Force leave RF low power mode for 1T1R to prevent + * conflicting setting in firmware power saving sequence. + */ + if (mode != PS_MODE_ACTIVE) + ODM_RF_Saving(odmpriv, true); + rtl8188e_set_FwPwrMode_cmd(adapter, mode); +} + +void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + struct wifidirect_info *pwdinfo = &padapter->wdinfo; + + if (ps_mode > PM_Card_Disable) + return; + + if (pwrpriv->pwr_mode == ps_mode) { + if (ps_mode == PS_MODE_ACTIVE) + return; + + if ((pwrpriv->smart_ps == smart_ps) && + (pwrpriv->bcn_ant_mode == bcn_ant_mode)) + return; + } + + if (ps_mode == PS_MODE_ACTIVE) { + if (pwdinfo->opp_ps == 0) { + pwrpriv->pwr_mode = ps_mode; + rtw_set_firmware_ps_mode(padapter, ps_mode); + pwrpriv->bFwCurrentInPSMode = false; + } + } else { + if (PS_RDY_CHECK(padapter)) { + pwrpriv->bFwCurrentInPSMode = true; + pwrpriv->pwr_mode = ps_mode; + pwrpriv->smart_ps = smart_ps; + pwrpriv->bcn_ant_mode = bcn_ant_mode; + rtw_set_firmware_ps_mode(padapter, ps_mode); + + /* Set CTWindow after LPS */ + if (pwdinfo->opp_ps == 1) + p2p_ps_wk_cmd(padapter, P2P_PS_ENABLE, 0); + } + } +} + +static bool lps_rf_on(struct adapter *adapter) +{ + int res; + u32 reg; + + /* When we halt NIC, we should check if FW LPS is leave. */ + if (adapter->pwrctrlpriv.rf_pwrstate == rf_off) { + /* If it is in HW/SW Radio OFF or IPS state, we do not check Fw LPS Leave, */ + /* because Fw is unload. */ + return true; + } + + res = rtw_read32(adapter, REG_RCR, ®); + if (res) + return false; + + if (reg & 0x00070000) + return false; + + return true; +} + +/* + * Return: + * 0: Leave OK + * -1: Timeout + * -2: Other error + */ +static s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(delay_ms); + s32 err = 0; + + while (1) { + if (lps_rf_on(padapter)) + break; + + if (padapter->bSurpriseRemoved) { + err = -2; + break; + } + + if (time_after(jiffies, timeout)) { + err = -1; + break; + } + mdelay(1); + } + + 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)) + 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; + /* 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; + + mutex_init(&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->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->pwr_mode = PS_MODE_ACTIVE; + pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps; + pwrctrlpriv->bcn_ant_mode = 0; + + timer_setup(&pwrctrlpriv->pwr_state_check_timer, pwr_state_check_handler, 0); +} + +/* Wake the NIC up from: 1)IPS 2)USB autosuspend */ +int rtw_pwr_wakeup(struct adapter *padapter) +{ + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + unsigned long timeout = jiffies + msecs_to_jiffies(3000); + unsigned long deny_time; + int ret; + + while (pwrpriv->ps_processing && time_before(jiffies, timeout)) + msleep(10); + + /* I think this should be check in IPS, LPS, autosuspend functions... */ + /* Below goto is a success path taken for already linked devices */ + ret = 0; + if (check_fwstate(pmlmepriv, _FW_LINKED)) + goto exit; + + if (pwrpriv->rf_pwrstate == rf_off && ips_leave(padapter) == _FAIL) { + ret = -ENOMEM; + goto exit; + } + + if (padapter->bDriverStopped || !padapter->bup || !padapter->hw_init_completed) { + ret = -EBUSY; + goto exit; + } + +exit: + deny_time = jiffies + msecs_to_jiffies(RTW_PWR_STATE_CHK_INTERVAL); + 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 = &padapter->pwrctrlpriv; + + if (mode < PS_MODE_NUM) { + if (pwrctrlpriv->power_mgnt != mode) { + if (mode == PS_MODE_ACTIVE) + 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 = &padapter->pwrctrlpriv; + + if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) { + rtw_ips_mode_req(pwrctrlpriv, mode); + return 0; + } else if (mode == IPS_NONE) { + rtw_ips_mode_req(pwrctrlpriv, mode); + if ((padapter->bSurpriseRemoved == 0) && rtw_pwr_wakeup(padapter)) + return -EFAULT; + } else { + return -EINVAL; + } + return 0; +} -- cgit v1.2.3