From 1cc18a22b96b33119f457cac3ce5fcbbcbab1bad Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Wed, 21 Aug 2013 22:33:47 -0500 Subject: [PATCH] staging: r8188eu: Add files for new driver - part 5 This commit adds core/rtw_pwrctrl.c, core/rtw_recv.c, and core/rtw_rf.c Signed-off-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/core/rtw_pwrctrl.c | 662 +++++ drivers/staging/rtl8188eu/core/rtw_recv.c | 2299 ++++++++++++++++++ drivers/staging/rtl8188eu/core/rtw_rf.c | 89 + 3 files changed, 3050 insertions(+) create mode 100644 drivers/staging/rtl8188eu/core/rtw_pwrctrl.c create mode 100644 drivers/staging/rtl8188eu/core/rtw_recv.c create mode 100644 drivers/staging/rtl8188eu/core/rtw_rf.c diff --git a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c new file mode 100644 index 000000000000..58a1661f5a84 --- /dev/null +++ b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c @@ -0,0 +1,662 @@ +/****************************************************************************** + * + * 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 >= rtw_get_current_time()) + 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) || +#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) == false) + 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; + +_func_enter_; + + 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; + +_func_exit_; +} + +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 = rtw_get_current_time(); + 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 */ + +_func_enter_; + + 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); + } + } + +_func_exit_; +} + +/* + * 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 = rtw_get_current_time(); + 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; + +_func_enter_; + + 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, 0); + } + } else { + pwrpriv->LpsIdleCount++; + } + } + +_func_exit_; +} + +#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; + +_func_enter_; + + if (pwrpriv->bLeisurePs) { + if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) { + rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0); + + if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) + LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS); + } + } + + pwrpriv->bpower_saving = false; + +_func_exit_; +} + +/* */ +/* 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; + +_func_enter_; + + 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); + } + +_func_exit_; +} + +void rtw_init_pwrctrl_priv(struct adapter *padapter) +{ + struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv; + +_func_enter_; + + _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); + +_func_exit_; +} + +void rtw_free_pwrctrl_priv(struct adapter *adapter) +{ + struct pwrctrl_priv *pwrctrlpriv = &adapter->pwrctrlpriv; + +_func_enter_; + + _free_pwrlock(&pwrctrlpriv->lock); + +_func_exit_; +} + +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 = rtw_get_current_time() + 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; + + if (pwrpriv->ips_deny_time < rtw_get_current_time() + rtw_ms_to_systime(ips_deffer_ms)) + pwrpriv->ips_deny_time = rtw_get_current_time() + rtw_ms_to_systime(ips_deffer_ms); + +{ + u32 start = rtw_get_current_time(); + 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)) { + ret = _FAIL; + goto exit; + } + + /* 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 < rtw_get_current_time() + rtw_ms_to_systime(ips_deffer_ms)) + pwrpriv->ips_deny_time = rtw_get_current_time() + 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; +} diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c new file mode 100644 index 000000000000..201165787362 --- /dev/null +++ b/drivers/staging/rtl8188eu/core/rtw_recv.c @@ -0,0 +1,2299 @@ +/****************************************************************************** + * + * 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_RECV_C_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37}; +static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3}; + +/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ +static u8 rtw_bridge_tunnel_header[] = { + 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 +}; + +static u8 rtw_rfc1042_header[] = { + 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 +}; + +void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS); + +void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv) +{ +_func_enter_; + + _rtw_memset((u8 *)psta_recvpriv, 0, sizeof (struct sta_recv_priv)); + + _rtw_spinlock_init(&psta_recvpriv->lock); + + _rtw_init_queue(&psta_recvpriv->defrag_q); + +_func_exit_; +} + +int _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter) +{ + int i; + + union recv_frame *precvframe; + + int res = _SUCCESS; + +_func_enter_; + _rtw_spinlock_init(&precvpriv->lock); + + _rtw_init_queue(&precvpriv->free_recv_queue); + _rtw_init_queue(&precvpriv->recv_pending_queue); + _rtw_init_queue(&precvpriv->uc_swdec_pending_queue); + + precvpriv->adapter = padapter; + + precvpriv->free_recvframe_cnt = NR_RECVFRAME; + + rtw_os_recv_resource_init(precvpriv, padapter); + + precvpriv->pallocated_frame_buf = rtw_zvmalloc(NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ); + + if (precvpriv->pallocated_frame_buf == NULL) { + res = _FAIL; + goto exit; + } + + precvpriv->precv_frame_buf = (u8 *)N_BYTE_ALIGMENT((size_t)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ); + + precvframe = (union recv_frame *)precvpriv->precv_frame_buf; + + for (i = 0; i < NR_RECVFRAME; i++) { + _rtw_init_listhead(&(precvframe->u.list)); + + rtw_list_insert_tail(&(precvframe->u.list), &(precvpriv->free_recv_queue.queue)); + + res = rtw_os_recv_resource_alloc(padapter, precvframe); + + precvframe->u.hdr.len = 0; + + precvframe->u.hdr.adapter = padapter; + precvframe++; + } + precvpriv->rx_pending_cnt = 1; + + _rtw_init_sema(&precvpriv->allrxreturnevt, 0); + + res = rtw_hal_init_recv_priv(padapter); + + _init_timer(&precvpriv->signal_stat_timer, padapter->pnetdev, RTW_TIMER_HDL_NAME(signal_stat), padapter); + + precvpriv->signal_stat_sampling_interval = 1000; /* ms */ + + rtw_set_signal_stat_timer(precvpriv); +exit: + +_func_exit_; + + return res; +} + +static void rtw_mfree_recv_priv_lock(struct recv_priv *precvpriv) +{ + _rtw_spinlock_free(&precvpriv->lock); + _rtw_spinlock_free(&precvpriv->free_recv_queue.lock); + _rtw_spinlock_free(&precvpriv->recv_pending_queue.lock); + + _rtw_spinlock_free(&precvpriv->free_recv_buf_queue.lock); +} + +void _rtw_free_recv_priv (struct recv_priv *precvpriv) +{ + struct adapter *padapter = precvpriv->adapter; + +_func_enter_; + + rtw_free_uc_swdec_pending_queue(padapter); + + rtw_mfree_recv_priv_lock(precvpriv); + + rtw_os_recv_resource_free(precvpriv); + + if (precvpriv->pallocated_frame_buf) { + rtw_vmfree(precvpriv->pallocated_frame_buf, NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ); + } + + rtw_hal_free_recv_priv(padapter); + +_func_exit_; +} + +union recv_frame *_rtw_alloc_recvframe (struct __queue *pfree_recv_queue) +{ + union recv_frame *precvframe; + struct list_head *plist, *phead; + struct adapter *padapter; + struct recv_priv *precvpriv; +_func_enter_; + + if (_rtw_queue_empty(pfree_recv_queue)) { + precvframe = NULL; + } else { + phead = get_list_head(pfree_recv_queue); + + plist = get_next(phead); + + precvframe = LIST_CONTAINOR(plist, union recv_frame, u); + + rtw_list_delete(&precvframe->u.hdr.list); + padapter = precvframe->u.hdr.adapter; + if (padapter != NULL) { + precvpriv = &padapter->recvpriv; + if (pfree_recv_queue == &precvpriv->free_recv_queue) + precvpriv->free_recvframe_cnt--; + } + } + +_func_exit_; + + return precvframe; +} + +union recv_frame *rtw_alloc_recvframe (struct __queue *pfree_recv_queue) +{ + unsigned long irqL; + union recv_frame *precvframe; + + _enter_critical_bh(&pfree_recv_queue->lock, &irqL); + + precvframe = _rtw_alloc_recvframe(pfree_recv_queue); + + _exit_critical_bh(&pfree_recv_queue->lock, &irqL); + + return precvframe; +} + +void rtw_init_recvframe(union recv_frame *precvframe, struct recv_priv *precvpriv) +{ + /* Perry: This can be removed */ + _rtw_init_listhead(&precvframe->u.hdr.list); + + precvframe->u.hdr.len = 0; +} + +int rtw_free_recvframe(union recv_frame *precvframe, struct __queue *pfree_recv_queue) +{ + unsigned long irqL; + struct adapter *padapter = precvframe->u.hdr.adapter; + struct recv_priv *precvpriv = &padapter->recvpriv; + +_func_enter_; + + if (precvframe->u.hdr.pkt) { + dev_kfree_skb_any(precvframe->u.hdr.pkt);/* free skb by driver */ + precvframe->u.hdr.pkt = NULL; + } + + _enter_critical_bh(&pfree_recv_queue->lock, &irqL); + + rtw_list_delete(&(precvframe->u.hdr.list)); + + precvframe->u.hdr.len = 0; + + rtw_list_insert_tail(&(precvframe->u.hdr.list), get_list_head(pfree_recv_queue)); + + if (padapter != NULL) { + if (pfree_recv_queue == &precvpriv->free_recv_queue) + precvpriv->free_recvframe_cnt++; + } + + _exit_critical_bh(&pfree_recv_queue->lock, &irqL); + +_func_exit_; + + return _SUCCESS; +} + +int _rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue) +{ + struct adapter *padapter = precvframe->u.hdr.adapter; + struct recv_priv *precvpriv = &padapter->recvpriv; + +_func_enter_; + + rtw_list_delete(&(precvframe->u.hdr.list)); + rtw_list_insert_tail(&(precvframe->u.hdr.list), get_list_head(queue)); + + if (padapter != NULL) { + if (queue == &precvpriv->free_recv_queue) + precvpriv->free_recvframe_cnt++; + } + +_func_exit_; + + return _SUCCESS; +} + +int rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue) +{ + int ret; + unsigned long irqL; + + _enter_critical_bh(&queue->lock, &irqL); + ret = _rtw_enqueue_recvframe(precvframe, queue); + _exit_critical_bh(&queue->lock, &irqL); + + return ret; +} + +/* +caller : defrag ; recvframe_chk_defrag in recv_thread (passive) +pframequeue: defrag_queue : will be accessed in recv_thread (passive) + +using spinlock to protect + +*/ + +void rtw_free_recvframe_queue(struct __queue *pframequeue, struct __queue *pfree_recv_queue) +{ + union recv_frame *precvframe; + struct list_head *plist, *phead; + +_func_enter_; + spin_lock(&pframequeue->lock); + + phead = get_list_head(pframequeue); + plist = get_next(phead); + + while (rtw_end_of_queue_search(phead, plist) == false) { + precvframe = LIST_CONTAINOR(plist, union recv_frame, u); + + plist = get_next(plist); + + rtw_free_recvframe(precvframe, pfree_recv_queue); + } + + spin_unlock(&pframequeue->lock); + +_func_exit_; +} + +u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter) +{ + u32 cnt = 0; + union recv_frame *pending_frame; + while ((pending_frame = rtw_alloc_recvframe(&adapter->recvpriv.uc_swdec_pending_queue))) { + rtw_free_recvframe(pending_frame, &adapter->recvpriv.free_recv_queue); + DBG_88E("%s: dequeue uc_swdec_pending_queue\n", __func__); + cnt++; + } + + return cnt; +} + +int rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, struct __queue *queue) +{ + unsigned long irqL; + + _enter_critical_bh(&queue->lock, &irqL); + + rtw_list_delete(&precvbuf->list); + rtw_list_insert_head(&precvbuf->list, get_list_head(queue)); + + _exit_critical_bh(&queue->lock, &irqL); + + return _SUCCESS; +} + +int rtw_enqueue_recvbuf(struct recv_buf *precvbuf, struct __queue *queue) +{ + unsigned long irqL; + _enter_critical_ex(&queue->lock, &irqL); + + rtw_list_delete(&precvbuf->list); + + rtw_list_insert_tail(&precvbuf->list, get_list_head(queue)); + _exit_critical_ex(&queue->lock, &irqL); + return _SUCCESS; +} + +struct recv_buf *rtw_dequeue_recvbuf (struct __queue *queue) +{ + unsigned long irqL; + struct recv_buf *precvbuf; + struct list_head *plist, *phead; + + _enter_critical_ex(&queue->lock, &irqL); + + if (_rtw_queue_empty(queue)) { + precvbuf = NULL; + } else { + phead = get_list_head(queue); + + plist = get_next(phead); + + precvbuf = LIST_CONTAINOR(plist, struct recv_buf, list); + + rtw_list_delete(&precvbuf->list); + } + + _exit_critical_ex(&queue->lock, &irqL); + + return precvbuf; +} + +static int recvframe_chkmic(struct adapter *adapter, union recv_frame *precvframe) +{ + int i, res = _SUCCESS; + u32 datalen; + u8 miccode[8]; + u8 bmic_err = false, brpt_micerror = true; + u8 *pframe, *payload, *pframemic; + u8 *mickey; + struct sta_info *stainfo; + struct rx_pkt_attrib *prxattrib = &precvframe->u.hdr.attrib; + struct security_priv *psecuritypriv = &adapter->securitypriv; + + struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; + struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); +_func_enter_; + + stainfo = rtw_get_stainfo(&adapter->stapriv, &prxattrib->ta[0]); + + if (prxattrib->encrypt == _TKIP_) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic:prxattrib->encrypt==_TKIP_\n")); + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic:da=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n", + prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2], prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5])); + + /* calculate mic code */ + if (stainfo != NULL) { + if (IS_MCAST(prxattrib->ra)) { + mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0]; + + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic: bcmc key\n")); + + if (!psecuritypriv) { + res = _FAIL; + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n")); + DBG_88E("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"); + goto exit; + } + } else { + mickey = &stainfo->dot11tkiprxmickey.skey[0]; + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic: unicast key\n")); + } + + datalen = precvframe->u.hdr.len-prxattrib->hdrlen-prxattrib->iv_len-prxattrib->icv_len-8;/* icv_len included the mic code */ + pframe = precvframe->u.hdr.rx_data; + payload = pframe+prxattrib->hdrlen+prxattrib->iv_len; + + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n prxattrib->iv_len=%d prxattrib->icv_len=%d\n", prxattrib->iv_len, prxattrib->icv_len)); + rtw_seccalctkipmic(mickey, pframe, payload, datalen, &miccode[0], + (unsigned char)prxattrib->priority); /* care the length of the data */ + + pframemic = payload+datalen; + + bmic_err = false; + + for (i = 0; i < 8; i++) { + if (miccode[i] != *(pframemic+i)) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, + ("recvframe_chkmic:miccode[%d](%02x)!=*(pframemic+%d)(%02x) ", + i, miccode[i], i, *(pframemic+i))); + bmic_err = true; + } + } + + if (bmic_err) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, + ("\n *(pframemic-8)-*(pframemic-1)=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n", + *(pframemic-8), *(pframemic-7), *(pframemic-6), + *(pframemic-5), *(pframemic-4), *(pframemic-3), + *(pframemic-2), *(pframemic-1))); + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, + ("\n *(pframemic-16)-*(pframemic-9)=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n", + *(pframemic-16), *(pframemic-15), *(pframemic-14), + *(pframemic-13), *(pframemic-12), *(pframemic-11), + *(pframemic-10), *(pframemic-9))); + { + uint i; + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n ======demp packet (len=%d)======\n", precvframe->u.hdr.len)); + for (i = 0; i < precvframe->u.hdr.len; i = i+8) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x", + *(precvframe->u.hdr.rx_data+i), *(precvframe->u.hdr.rx_data+i+1), + *(precvframe->u.hdr.rx_data+i+2), *(precvframe->u.hdr.rx_data+i+3), + *(precvframe->u.hdr.rx_data+i+4), *(precvframe->u.hdr.rx_data+i+5), + *(precvframe->u.hdr.rx_data+i+6), *(precvframe->u.hdr.rx_data+i+7))); + } + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n ====== demp packet end [len=%d]======\n", precvframe->u.hdr.len)); + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n hrdlen=%d,\n", prxattrib->hdrlen)); + } + + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, + ("ra=0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x psecuritypriv->binstallGrpkey=%d ", + prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2], + prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5], psecuritypriv->binstallGrpkey)); + + /* double check key_index for some timing issue , */ + /* cannot compare with psecuritypriv->dot118021XGrpKeyid also cause timing issue */ + if ((IS_MCAST(prxattrib->ra) == true) && (prxattrib->key_index != pmlmeinfo->key_index)) + brpt_micerror = false; + + if ((prxattrib->bdecrypted) && (brpt_micerror)) { + rtw_handle_tkip_mic_err(adapter, (u8)IS_MCAST(prxattrib->ra)); + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted=%d ", prxattrib->bdecrypted)); + DBG_88E(" mic error :prxattrib->bdecrypted=%d\n", prxattrib->bdecrypted); + } else { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted=%d ", prxattrib->bdecrypted)); + DBG_88E(" mic error :prxattrib->bdecrypted=%d\n", prxattrib->bdecrypted); + } + res = _FAIL; + } else { + /* mic checked ok */ + if ((!psecuritypriv->bcheck_grpkey) && (IS_MCAST(prxattrib->ra))) { + psecuritypriv->bcheck_grpkey = true; + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("psecuritypriv->bcheck_grpkey = true")); + } + } + } else { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic: rtw_get_stainfo==NULL!!!\n")); + } + + recvframe_pull_tail(precvframe, 8); + } + +exit: + +_func_exit_; + + return res; +} + +/* decrypt and set the ivlen, icvlen of the recv_frame */ +static union recv_frame *decryptor(struct adapter *padapter, union recv_frame *precv_frame) +{ + struct rx_pkt_attrib *prxattrib = &precv_frame->u.hdr.attrib; + struct security_priv *psecuritypriv = &padapter->securitypriv; + union recv_frame *return_packet = precv_frame; + u32 res = _SUCCESS; +_func_enter_; + + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("prxstat->decrypted=%x prxattrib->encrypt=0x%03x\n", prxattrib->bdecrypted, prxattrib->encrypt)); + + if (prxattrib->encrypt > 0) { + u8 *iv = precv_frame->u.hdr.rx_data+prxattrib->hdrlen; + prxattrib->key_index = (((iv[3])>>6)&0x3); + + if (prxattrib->key_index > WEP_KEYS) { + DBG_88E("prxattrib->key_index(%d)>WEP_KEYS\n", prxattrib->key_index); + + switch (prxattrib->encrypt) { + case _WEP40_: + case _WEP104_: + prxattrib->key_index = psecuritypriv->dot11PrivacyKeyIndex; + break; + case _TKIP_: + case _AES_: + default: + prxattrib->key_index = psecuritypriv->dot118021XGrpKeyid; + break; + } + } + } + + if ((prxattrib->encrypt > 0) && ((prxattrib->bdecrypted == 0) || (psecuritypriv->sw_decrypt))) { + psecuritypriv->hw_decrypted = false; + + switch (prxattrib->encrypt) { + case _WEP40_: + case _WEP104_: + rtw_wep_decrypt(padapter, (u8 *)precv_frame); + break; + case _TKIP_: + res = rtw_tkip_decrypt(padapter, (u8 *)precv_frame); + break; + case _AES_: + res = rtw_aes_decrypt(padapter, (u8 *)precv_frame); + break; + default: + break; + } + } else if (prxattrib->bdecrypted == 1 && prxattrib->encrypt > 0 && + (psecuritypriv->busetkipkey == 1 || prxattrib->encrypt != _TKIP_)) + psecuritypriv->hw_decrypted = true; + + if (res == _FAIL) { + rtw_free_recvframe(return_packet, &padapter->recvpriv.free_recv_queue); + return_packet = NULL; + } + +_func_exit_; + + return return_packet; +} + +/* set the security information in the recv_frame */ +static union recv_frame *portctrl(struct adapter *adapter, union recv_frame *precv_frame) +{ + u8 *psta_addr = NULL, *ptr; + uint auth_alg; + struct recv_frame_hdr *pfhdr; + struct sta_info *psta; + struct sta_priv *pstapriv; + union recv_frame *prtnframe; + u16 ether_type = 0; + u16 eapol_type = 0x888e;/* for Funia BD's WPA issue */ + struct rx_pkt_attrib *pattrib; + __be16 be_tmp; + +_func_enter_; + + pstapriv = &adapter->stapriv; + psta = rtw_get_stainfo(pstapriv, psta_addr); + + auth_alg = adapter->securitypriv.dot11AuthAlgrthm; + + ptr = get_recvframe_data(precv_frame); + pfhdr = &precv_frame->u.hdr; + pattrib = &pfhdr->attrib; + psta_addr = pattrib->ta; + + prtnframe = NULL; + + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:adapter->securitypriv.dot11AuthAlgrthm=%d\n", adapter->securitypriv.dot11AuthAlgrthm)); + + if (auth_alg == 2) { + if ((psta != NULL) && (psta->ieee8021x_blocked)) { + /* blocked */ + /* only accept EAPOL frame */ + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:psta->ieee8021x_blocked==1\n")); + + prtnframe = precv_frame; + + /* get ether_type */ + ptr = ptr+pfhdr->attrib.hdrlen+pfhdr->attrib.iv_len+LLC_HEADER_SIZE; + memcpy(&be_tmp, ptr, 2); + ether_type = ntohs(be_tmp); + + if (ether_type == eapol_type) { + prtnframe = precv_frame; + } else { + /* free this frame */ + rtw_free_recvframe(precv_frame, &adapter->recvpriv.free_recv_queue); + prtnframe = NULL; + } + } else { + /* allowed */ + /* check decryption status, and decrypt the frame if needed */ + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:psta->ieee8021x_blocked==0\n")); + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("portctrl:precv_frame->hdr.attrib.privacy=%x\n", precv_frame->u.hdr.attrib.privacy)); + + if (pattrib->bdecrypted == 0) + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("portctrl:prxstat->decrypted=%x\n", pattrib->bdecrypted)); + + prtnframe = precv_frame; + /* check is the EAPOL frame or not (Rekey) */ + if (ether_type == eapol_type) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("########portctrl:ether_type==0x888e\n")); + /* check Rekey */ + + prtnframe = precv_frame; + } else { + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:ether_type=0x%04x\n", ether_type)); + } + } + } else { + prtnframe = precv_frame; + } + +_func_exit_; + + return prtnframe; +} + +static int recv_decache(union recv_frame *precv_frame, u8 bretry, struct stainfo_rxcache *prxcache) +{ + int tid = precv_frame->u.hdr.attrib.priority; + + u16 seq_ctrl = ((precv_frame->u.hdr.attrib.seq_num&0xffff) << 4) | + (precv_frame->u.hdr.attrib.frag_num & 0xf); + +_func_enter_; + + if (tid > 15) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_decache, (tid>15)! seq_ctrl=0x%x, tid=0x%x\n", seq_ctrl, tid)); + + return _FAIL; + } + + if (1) {/* if (bretry) */ + if (seq_ctrl == prxcache->tid_rxseq[tid]) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_decache, seq_ctrl=0x%x, tid=0x%x, tid_rxseq=0x%x\n", seq_ctrl, tid, prxcache->tid_rxseq[tid])); + + return _FAIL; + } + } + + prxcache->tid_rxseq[tid] = seq_ctrl; + +_func_exit_; + + return _SUCCESS; +} + +void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame); +void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame) +{ +#ifdef CONFIG_88EU_AP_MODE + unsigned char pwrbit; + u8 *ptr = precv_frame->u.hdr.rx_data; + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + struct sta_priv *pstapriv = &padapter->stapriv; + struct sta_info *psta = NULL; + + psta = rtw_get_stainfo(pstapriv, pattrib->src); + + pwrbit = GetPwrMgt(ptr); + + if (psta) { + if (pwrbit) { + if (!(psta->state & WIFI_SLEEP_STATE)) + stop_sta_xmit(padapter, psta); + } else { + if (psta->state & WIFI_SLEEP_STATE) + wakeup_sta_to_xmit(padapter, psta); + } + } + +#endif +} + +static void process_wmmps_data(struct adapter *padapter, union recv_frame *precv_frame) +{ +#ifdef CONFIG_88EU_AP_MODE + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + struct sta_priv *pstapriv = &padapter->stapriv; + struct sta_info *psta = NULL; + + psta = rtw_get_stainfo(pstapriv, pattrib->src); + + if (!psta) + return; + + if (!psta->qos_option) + return; + + if (!(psta->qos_info&0xf)) + return; + + if (psta->state&WIFI_SLEEP_STATE) { + u8 wmmps_ac = 0; + + switch (pattrib->priority) { + case 1: + case 2: + wmmps_ac = psta->uapsd_bk&BIT(1); + break; + case 4: + case 5: + wmmps_ac = psta->uapsd_vi&BIT(1); + break; + case 6: + case 7: + wmmps_ac = psta->uapsd_vo&BIT(1); + break; + case 0: + case 3: + default: + wmmps_ac = psta->uapsd_be&BIT(1); + break; + } + + if (wmmps_ac) { + if (psta->sleepq_ac_len > 0) { + /* process received triggered frame */ + xmit_delivery_enabled_frames(padapter, psta); + } else { + /* issue one qos null frame with More data bit = 0 and the EOSP bit set (= 1) */ + issue_qos_nulldata(padapter, psta->hwaddr, (u16)pattrib->priority, 0, 0); + } + } + } + +#endif +} + +static void count_rx_stats(struct adapter *padapter, union recv_frame *prframe, struct sta_info *sta) +{ + int sz; + struct sta_info *psta = NULL; + struct stainfo_stats *pstats = NULL; + struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; + struct recv_priv *precvpriv = &padapter->recvpriv; + + sz = get_recvframe_len(prframe); + precvpriv->rx_bytes += sz; + + padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++; + + if ((!MacAddr_isBcst(pattrib->dst)) && (!IS_MCAST(pattrib->dst))) + padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++; + + if (sta) + psta = sta; + else + psta = prframe->u.hdr.psta; + + if (psta) { + pstats = &psta->sta_stats; + + pstats->rx_data_pkts++; + pstats->rx_bytes += sz; + } +} + +int sta2sta_data_frame( + struct adapter *adapter, + union recv_frame *precv_frame, + struct sta_info **psta +); + +int sta2sta_data_frame(struct adapter *adapter, union recv_frame *precv_frame, struct sta_info **psta) +{ + u8 *ptr = precv_frame->u.hdr.rx_data; + int ret = _SUCCESS; + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + struct sta_priv *pstapriv = &adapter->stapriv; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + u8 *mybssid = get_bssid(pmlmepriv); + u8 *myhwaddr = myid(&adapter->eeprompriv); + u8 *sta_addr = NULL; + int bmcast = IS_MCAST(pattrib->dst); + +_func_enter_; + + if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) || + (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) { + /* filter packets that SA is myself or multicast or broadcast */ + if (_rtw_memcmp(myhwaddr, pattrib->src, ETH_ALEN)) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA==myself\n")); + ret = _FAIL; + goto exit; + } + + if ((!_rtw_memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast)) { + ret = _FAIL; + goto exit; + } + + if (_rtw_memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) || + _rtw_memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) || + !_rtw_memcmp(pattrib->bssid, mybssid, ETH_ALEN)) { + ret = _FAIL; + goto exit; + } + + sta_addr = pattrib->src; + } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) { + /* For Station mode, sa and bssid should always be BSSID, and DA is my mac-address */ + if (!_rtw_memcmp(pattrib->bssid, pattrib->src, ETH_ALEN)) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("bssid!=TA under STATION_MODE; drop pkt\n")); + ret = _FAIL; + goto exit; + } + sta_addr = pattrib->bssid; + } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { + if (bmcast) { + /* For AP mode, if DA == MCAST, then BSSID should be also MCAST */ + if (!IS_MCAST(pattrib->bssid)) { + ret = _FAIL; + goto exit; + } + } else { /* not mc-frame */ + /* For AP mode, if DA is non-MCAST, then it must be BSSID, and bssid == BSSID */ + if (!_rtw_memcmp(pattrib->bssid, pattrib->dst, ETH_ALEN)) { + ret = _FAIL; + goto exit; + } + + sta_addr = pattrib->src; + } + } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE)) { + memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN); + memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN); + memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN); + memcpy(pattrib->ra, pattrib->dst, ETH_ALEN); + memcpy(pattrib->ta, pattrib->src, ETH_ALEN); + + sta_addr = mybssid; + } else { + ret = _FAIL; + } + + if (bmcast) + *psta = rtw_get_bcmc_stainfo(adapter); + else + *psta = rtw_get_stainfo(pstapriv, sta_addr); /* get ap_info */ + + if (*psta == NULL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under sta2sta_data_frame ; drop pkt\n")); + if (adapter->registrypriv.mp_mode == 1) { + if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) + adapter->mppriv.rx_pktloss++; + } + ret = _FAIL; + goto exit; + } + +exit: +_func_exit_; + return ret; +} + +static int ap2sta_data_frame ( + struct adapter *adapter, + union recv_frame *precv_frame, + struct sta_info **psta) +{ + u8 *ptr = precv_frame->u.hdr.rx_data; + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + int ret = _SUCCESS; + struct sta_priv *pstapriv = &adapter->stapriv; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + u8 *mybssid = get_bssid(pmlmepriv); + u8 *myhwaddr = myid(&adapter->eeprompriv); + int bmcast = IS_MCAST(pattrib->dst); + +_func_enter_; + + if ((check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) && + (check_fwstate(pmlmepriv, _FW_LINKED) == true || + check_fwstate(pmlmepriv, _FW_UNDER_LINKING))) { + /* filter packets that SA is myself or multicast or broadcast */ + if (_rtw_memcmp(myhwaddr, pattrib->src, ETH_ALEN)) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA==myself\n")); + ret = _FAIL; + goto exit; + } + + /* da should be for me */ + if ((!_rtw_memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast)) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, + (" ap2sta_data_frame: compare DA fail; DA=%pM\n", (pattrib->dst))); + ret = _FAIL; + goto exit; + } + + /* check BSSID */ + if (_rtw_memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) || + _rtw_memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) || + (!_rtw_memcmp(pattrib->bssid, mybssid, ETH_ALEN))) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, + (" ap2sta_data_frame: compare BSSID fail ; BSSID=%pM\n", (pattrib->bssid))); + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("mybssid=%pM\n", (mybssid))); + + if (!bmcast) { + DBG_88E("issue_deauth to the nonassociated ap=%pM for the reason(7)\n", (pattrib->bssid)); + issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); + } + + ret = _FAIL; + goto exit; + } + + if (bmcast) + *psta = rtw_get_bcmc_stainfo(adapter); + else + *psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get ap_info */ + + if (*psta == NULL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("ap2sta: can't get psta under STATION_MODE ; drop pkt\n")); + ret = _FAIL; + goto exit; + } + + /* if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) { */ + /* */ + + if (GetFrameSubType(ptr) & BIT(6)) { + /* No data, will not indicate to upper layer, temporily count it here */ + count_rx_stats(adapter, precv_frame, *psta); + ret = RTW_RX_HANDLED; + goto exit; + } + } else if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) && + (check_fwstate(pmlmepriv, _FW_LINKED) == true)) { + memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN); + memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN); + memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN); + memcpy(pattrib->ra, pattrib->dst, ETH_ALEN); + memcpy(pattrib->ta, pattrib->src, ETH_ALEN); + + /* */ + memcpy(pattrib->bssid, mybssid, ETH_ALEN); + + *psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get sta_info */ + if (*psta == NULL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under MP_MODE ; drop pkt\n")); + ret = _FAIL; + goto exit; + } + } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { + /* Special case */ + ret = RTW_RX_HANDLED; + goto exit; + } else { + if (_rtw_memcmp(myhwaddr, pattrib->dst, ETH_ALEN) && (!bmcast)) { + *psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get sta_info */ + if (*psta == NULL) { + DBG_88E("issue_deauth to the ap =%pM for the reason(7)\n", (pattrib->bssid)); + + issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); + } + } + + ret = _FAIL; + } + +exit: + +_func_exit_; + + return ret; +} + +static int sta2ap_data_frame(struct adapter *adapter, + union recv_frame *precv_frame, + struct sta_info **psta) +{ + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + struct sta_priv *pstapriv = &adapter->stapriv; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + u8 *ptr = precv_frame->u.hdr.rx_data; + unsigned char *mybssid = get_bssid(pmlmepriv); + int ret = _SUCCESS; + +_func_enter_; + + if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) { + /* For AP mode, RA = BSSID, TX = STA(SRC_ADDR), A3 = DST_ADDR */ + if (!_rtw_memcmp(pattrib->bssid, mybssid, ETH_ALEN)) { + ret = _FAIL; + goto exit; + } + + *psta = rtw_get_stainfo(pstapriv, pattrib->src); + if (*psta == NULL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under AP_MODE; drop pkt\n")); + DBG_88E("issue_deauth to sta=%pM for the reason(7)\n", (pattrib->src)); + + issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); + + ret = RTW_RX_HANDLED; + goto exit; + } + + process_pwrbit_data(adapter, precv_frame); + + if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) { + process_wmmps_data(adapter, precv_frame); + } + + if (GetFrameSubType(ptr) & BIT(6)) { + /* No data, will not indicate to upper layer, temporily count it here */ + count_rx_stats(adapter, precv_frame, *psta); + ret = RTW_RX_HANDLED; + goto exit; + } + } else { + u8 *myhwaddr = myid(&adapter->eeprompriv); + if (!_rtw_memcmp(pattrib->ra, myhwaddr, ETH_ALEN)) { + ret = RTW_RX_HANDLED; + goto exit; + } + DBG_88E("issue_deauth to sta=%pM for the reason(7)\n", (pattrib->src)); + issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); + ret = RTW_RX_HANDLED; + goto exit; + } + +exit: + +_func_exit_; + + return ret; +} + +static int validate_recv_ctrl_frame(struct adapter *padapter, + union recv_frame *precv_frame) +{ +#ifdef CONFIG_88EU_AP_MODE + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + struct sta_priv *pstapriv = &padapter->stapriv; + u8 *pframe = precv_frame->u.hdr.rx_data; + /* uint len = precv_frame->u.hdr.len; */ + + if (GetFrameType(pframe) != WIFI_CTRL_TYPE) + return _FAIL; + + /* receive the frames that ra(a1) is my address */ + if (!_rtw_memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN)) + return _FAIL; + + /* only handle ps-poll */ + if (GetFrameSubType(pframe) == WIFI_PSPOLL) { + u16 aid; + u8 wmmps_ac = 0; + struct sta_info *psta = NULL; + + aid = GetAid(pframe); + psta = rtw_get_stainfo(pstapriv, GetAddr2Ptr(pframe)); + + if ((psta == NULL) || (psta->aid != aid)) + return _FAIL; + + /* for rx pkt statistics */ + psta->sta_stats.rx_ctrl_pkts++; + + switch (pattrib->priority) { + case 1: + case 2: + wmmps_ac = psta->uapsd_bk&BIT(0); + break; + case 4: + case 5: + wmmps_ac = psta->uapsd_vi&BIT(0); + break; + case 6: + case 7: + wmmps_ac = psta->uapsd_vo&BIT(0); + break; + case 0: + case 3: + default: + wmmps_ac = psta->uapsd_be&BIT(0); + break; + } + + if (wmmps_ac) + return _FAIL; + + if (psta->state & WIFI_STA_ALIVE_CHK_STATE) { + DBG_88E("%s alive check-rx ps-poll\n", __func__); + psta->expire_to = pstapriv->expire_to; + psta->state ^= WIFI_STA_ALIVE_CHK_STATE; + } + + if ((psta->state&WIFI_SLEEP_STATE) && (pstapriv->sta_dz_bitmap&BIT(psta->aid))) { + unsigned long irqL; + struct list_head *xmitframe_plist, *xmitframe_phead; + struct xmit_frame *pxmitframe = NULL; + + _enter_critical_bh(&psta->sleep_q.lock, &irqL); + + xmitframe_phead = get_list_head(&psta->sleep_q); + xmitframe_plist = get_next(xmitframe_phead); + + if ((rtw_end_of_queue_search(xmitframe_phead, xmitframe_plist)) == false) { + pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list); + + xmitframe_plist = get_next(xmitframe_plist); + + rtw_list_delete(&pxmitframe->list); + + psta->sleepq_len--; + + if (psta->sleepq_len > 0) + pxmitframe->attrib.mdata = 1; + else + pxmitframe->attrib.mdata = 0; + + pxmitframe->attrib.triggered = 1; + + _exit_critical_bh(&psta->sleep_q.lock, &irqL); + if (rtw_hal_xmit(padapter, pxmitframe) == true) + rtw_os_xmit_complete(padapter, pxmitframe); + _enter_critical_bh(&psta->sleep_q.lock, &irqL); + + if (psta->sleepq_len == 0) { + pstapriv->tim_bitmap &= ~BIT(psta->aid); + + /* upate BCN for TIM IE */ + /* update_BCNTIM(padapter); */ + update_beacon(padapter, _TIM_IE_, NULL, false); + } + } else { + if (pstapriv->tim_bitmap&BIT(psta->aid)) { + if (psta->sleepq_len == 0) { + DBG_88E("no buffered packets to xmit\n"); + + /* issue nulldata with More data bit = 0 to indicate we have no buffered packets */ + issue_nulldata(padapter, psta->hwaddr, 0, 0, 0); + } else { + DBG_88E("error!psta->sleepq_len=%d\n", psta->sleepq_len); + psta->sleepq_len = 0; + } + + pstapriv->tim_bitmap &= ~BIT(psta->aid); + + /* upate BCN for TIM IE */ + /* update_BCNTIM(padapter); */ + update_beacon(padapter, _TIM_IE_, NULL, false); + } + } + + _exit_critical_bh(&psta->sleep_q.lock, &irqL); + } + } + +#endif + + return _FAIL; +} + +union recv_frame *recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame); + +static int validate_recv_mgnt_frame(struct adapter *padapter, + union recv_frame *precv_frame) +{ + struct sta_info *psta; + + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("+validate_recv_mgnt_frame\n")); + + precv_frame = recvframe_chk_defrag(padapter, precv_frame); + if (precv_frame == NULL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("%s: fragment packet\n", __func__)); + return _SUCCESS; + } + + /* for rx pkt statistics */ + psta = rtw_get_stainfo(&padapter->stapriv, GetAddr2Ptr(precv_frame->u.hdr.rx_data)); + if (psta) { + psta->sta_stats.rx_mgnt_pkts++; + if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_BEACON) { + psta->sta_stats.rx_beacon_pkts++; + } else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBEREQ) { + psta->sta_stats.rx_probereq_pkts++; + } else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBERSP) { + if (_rtw_memcmp(padapter->eeprompriv.mac_addr, GetAddr1Ptr(precv_frame->u.hdr.rx_data), ETH_ALEN) == true) + psta->sta_stats.rx_probersp_pkts++; + else if (is_broadcast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data)) || + is_multicast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data))) + psta->sta_stats.rx_probersp_bm_pkts++; + else + psta->sta_stats.rx_probersp_uo_pkts++; + } + } + + mgt_dispatcher(padapter, precv_frame); + + return _SUCCESS; +} + +static int validate_recv_data_frame(struct adapter *adapter, + union recv_frame *precv_frame) +{ + u8 bretry; + u8 *psa, *pda, *pbssid; + struct sta_info *psta = NULL; + u8 *ptr = precv_frame->u.hdr.rx_data; + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + struct security_priv *psecuritypriv = &adapter->securitypriv; + int ret = _SUCCESS; + +_func_enter_; + + bretry = GetRetry(ptr); + pda = get_da(ptr); + psa = get_sa(ptr); + pbssid = get_hdr_bssid(ptr); + + if (pbssid == NULL) { + ret = _FAIL; + goto exit; + } + + memcpy(pattrib->dst, pda, ETH_ALEN); + memcpy(pattrib->src, psa, ETH_ALEN); + + memcpy(pattrib->bssid, pbssid, ETH_ALEN); + + switch (pattrib->to_fr_ds) { + case 0: + memcpy(pattrib->ra, pda, ETH_ALEN); + memcpy(pattrib->ta, psa, ETH_ALEN); + ret = sta2sta_data_frame(adapter, precv_frame, &psta); + break; + case 1: + memcpy(pattrib->ra, pda, ETH_ALEN); + memcpy(pattrib->ta, pbssid, ETH_ALEN); + ret = ap2sta_data_frame(adapter, precv_frame, &psta); + break; + case 2: + memcpy(pattrib->ra, pbssid, ETH_ALEN); + memcpy(pattrib->ta, psa, ETH_ALEN); + ret = sta2ap_data_frame(adapter, precv_frame, &psta); + break; + case 3: + memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN); + memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN); + ret = _FAIL; + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" case 3\n")); + break; + default: + ret = _FAIL; + break; + } + + if (ret == _FAIL) { + goto exit; + } else if (ret == RTW_RX_HANDLED) { + goto exit; + } + + if (psta == NULL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" after to_fr_ds_chk; psta==NULL\n")); + ret = _FAIL; + goto exit; + } + + /* psta->rssi = prxcmd->rssi; */ + /* psta->signal_quality = prxcmd->sq; */ + precv_frame->u.hdr.psta = psta; + + pattrib->amsdu = 0; + pattrib->ack_policy = 0; + /* parsing QC field */ + if (pattrib->qos == 1) { + pattrib->priority = GetPriority((ptr + 24)); + pattrib->ack_policy = GetAckpolicy((ptr + 24)); + pattrib->amsdu = GetAMsdu((ptr + 24)); + pattrib->hdrlen = pattrib->to_fr_ds == 3 ? 32 : 26; + + if (pattrib->priority != 0 && pattrib->priority != 3) + adapter->recvpriv.bIsAnyNonBEPkts = true; + } else { + pattrib->priority = 0; + pattrib->hdrlen = pattrib->to_fr_ds == 3 ? 30 : 24; + } + + if (pattrib->order)/* HT-CTRL 11n */ + pattrib->hdrlen += 4; + + precv_frame->u.hdr.preorder_ctrl = &psta->recvreorder_ctrl[pattrib->priority]; + + /* decache, drop duplicate recv packets */ + if (recv_decache(precv_frame, bretry, &psta->sta_recvpriv.rxcache) == _FAIL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("decache : drop pkt\n")); + ret = _FAIL; + goto exit; + } + + if (pattrib->privacy) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("validate_recv_data_frame:pattrib->privacy=%x\n", pattrib->privacy)); + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n ^^^^^^^^^^^IS_MCAST(pattrib->ra(0x%02x))=%d^^^^^^^^^^^^^^^6\n", pattrib->ra[0], IS_MCAST(pattrib->ra))); + + GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, IS_MCAST(pattrib->ra)); + + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n pattrib->encrypt=%d\n", pattrib->encrypt)); + + SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt); + } else { + pattrib->encrypt = 0; + pattrib->iv_len = 0; + pattrib->icv_len = 0; + } + +exit: + +_func_exit_; + + return ret; +} + +static int validate_recv_frame(struct adapter *adapter, union recv_frame *precv_frame) +{ + /* shall check frame subtype, to / from ds, da, bssid */ + + /* then call check if rx seq/frag. duplicated. */ + + u8 type; + u8 subtype; + int retval = _SUCCESS; + u8 bDumpRxPkt; + struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; + u8 *ptr = precv_frame->u.hdr.rx_data; + u8 ver = (unsigned char) (*ptr)&0x3; + struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; + +_func_enter_; + + if (pmlmeext->sitesurvey_res.state == SCAN_PROCESS) { + int ch_set_idx = rtw_ch_set_search_ch(pmlmeext->channel_set, rtw_get_oper_ch(adapter)); + if (ch_set_idx >= 0) + pmlmeext->channel_set[ch_set_idx].rx_count++; + } + + /* add version chk */ + if (ver != 0) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail! (ver!=0)\n")); + retval = _FAIL; + goto exit; + } + + type = GetFrameType(ptr); + subtype = GetFrameSubType(ptr); /* bit(7)~bit(2) */ + + pattrib->to_fr_ds = get_tofr_ds(ptr); + + pattrib->frag_num = GetFragNum(ptr); + pattrib->seq_num = GetSequence(ptr); + + pattrib->pw_save = GetPwrMgt(ptr); + pattrib->mfrag = GetMFrag(ptr); + pattrib->mdata = GetMData(ptr); + pattrib->privacy = GetPrivacy(ptr); + pattrib->order = GetOrder(ptr); + + /* Dump rx packets */ + rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt)); + if (bDumpRxPkt == 1) {/* dump all rx packets */ + int i; + DBG_88E("#############################\n"); + + for (i = 0; i < 64; i = i+8) + DBG_88E("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(ptr+i), + *(ptr+i+1), *(ptr+i+2), *(ptr+i+3), *(ptr+i+4), *(ptr+i+5), *(ptr+i+6), *(ptr+i+7)); + DBG_88E("#############################\n"); + } else if (bDumpRxPkt == 2) { + if (type == WIFI_MGT_TYPE) { + int i; + DBG_88E("#############################\n"); + + for (i = 0; i < 64; i = i+8) + DBG_88E("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(ptr+i), + *(ptr+i+1), *(ptr+i+2), *(ptr+i+3), *(ptr+i+4), *(ptr+i+5), *(ptr+i+6), *(ptr+i+7)); + DBG_88E("#############################\n"); + } + } else if (bDumpRxPkt == 3) { + if (type == WIFI_DATA_TYPE) { + int i; + DBG_88E("#############################\n"); + + for (i = 0; i < 64; i = i+8) + DBG_88E("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(ptr+i), + *(ptr+i+1), *(ptr+i+2), *(ptr+i+3), *(ptr+i+4), *(ptr+i+5), *(ptr+i+6), *(ptr+i+7)); + DBG_88E("#############################\n"); + } + } + switch (type) { + case WIFI_MGT_TYPE: /* mgnt */ + retval = validate_recv_mgnt_frame(adapter, precv_frame); + if (retval == _FAIL) + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_mgnt_frame fail\n")); + retval = _FAIL; /* only data frame return _SUCCESS */ + break; + case WIFI_CTRL_TYPE: /* ctrl */ + retval = validate_recv_ctrl_frame(adapter, precv_frame); + if (retval == _FAIL) + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_ctrl_frame fail\n")); + retval = _FAIL; /* only data frame return _SUCCESS */ + break; + case WIFI_DATA_TYPE: /* data */ + rtw_led_control(adapter, LED_CTL_RX); + pattrib->qos = (subtype & BIT(7)) ? 1 : 0; + retval = validate_recv_data_frame(adapter, precv_frame); + if (retval == _FAIL) { + struct recv_priv *precvpriv = &adapter->recvpriv; + precvpriv->rx_drop++; + } + break; + default: + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail! type= 0x%x\n", type)); + retval = _FAIL; + break; + } + +exit: + +_func_exit_; + + return retval; +} + +/* remove the wlanhdr and add the eth_hdr */ + +static int wlanhdr_to_ethhdr (union recv_frame *precvframe) +{ + int rmv_len; + u16 eth_type, len; + __be16 be_tmp; + u8 bsnaphdr; + u8 *psnap_type; + struct ieee80211_snap_hdr *psnap; + + int ret = _SUCCESS; + struct adapter *adapter = precvframe->u.hdr.adapter; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + + u8 *ptr = get_recvframe_data(precvframe); /* point to frame_ctrl field */ + struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib; + +_func_enter_; + + if (pattrib->encrypt) + recvframe_pull_tail(precvframe, pattrib->icv_len); + + psnap = (struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen + pattrib->iv_len); + psnap_type = ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE; + /* convert hdr + possible LLC headers into Ethernet header */ + if ((_rtw_memcmp(psnap, rtw_rfc1042_header, SNAP_SIZE) && + (_rtw_memcmp(psnap_type, SNAP_ETH_TYPE_IPX, 2) == false) && + (_rtw_memcmp(psnap_type, SNAP_ETH_TYPE_APPLETALK_AARP, 2) == false)) || + _rtw_memcmp(psnap, rtw_bridge_tunnel_header, SNAP_SIZE)) { + /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */ + bsnaphdr = true; + } else { + /* Leave Ethernet header part of hdr and full payload */ + bsnaphdr = false; + } + + rmv_len = pattrib->hdrlen + pattrib->iv_len + (bsnaphdr ? SNAP_SIZE : 0); + len = precvframe->u.hdr.len - rmv_len; + + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, + ("\n===pattrib->hdrlen: %x, pattrib->iv_len:%x===\n\n", pattrib->hdrlen, pattrib->iv_len)); + + memcpy(&be_tmp, ptr+rmv_len, 2); + eth_type = ntohs(be_tmp); /* pattrib->ether_type */ + pattrib->eth_type = eth_type; + + if ((check_fwstate(pmlmepriv, WIFI_MP_STATE))) { + ptr += rmv_len; + *ptr = 0x87; + *(ptr+1) = 0x12; + + eth_type = 0x8712; + /* append rx status for mp test packets */ + ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+2)-24); + memcpy(ptr, get_rxmem(precvframe), 24); + ptr += 24; + } else { + ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr) + (bsnaphdr ? 2 : 0))); + } + + memcpy(ptr, pattrib->dst, ETH_ALEN); + memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN); + + if (!bsnaphdr) { + be_tmp = htons(len); + memcpy(ptr+12, &be_tmp, 2); + } + +_func_exit_; + return ret; +} + +/* perform defrag */ +static union recv_frame *recvframe_defrag(struct adapter *adapter, struct __queue *defrag_q) +{ + struct list_head *plist, *phead; + u8 wlanhdr_offset; + u8 curfragnum; + struct recv_frame_hdr *pfhdr, *pnfhdr; + union recv_frame *prframe, *pnextrframe; + struct __queue *pfree_recv_queue; + +_func_enter_; + + curfragnum = 0; + pfree_recv_queue = &adapter->recvpriv.free_recv_queue; + + phead = get_list_head(defrag_q); + plist = get_next(phead); + prframe = LIST_CONTAINOR(plist, union recv_frame, u); + pfhdr = &prframe->u.hdr; + rtw_list_delete(&(prframe->u.list)); + + if (curfragnum != pfhdr->attrib.frag_num) { + /* the first fragment number must be 0 */ + /* free the whole queue */ + rtw_free_recvframe(prframe, pfree_recv_queue); + rtw_free_recvframe_queue(defrag_q, pfree_recv_queue); + + return NULL; + } + + curfragnum++; + + plist = get_list_head(defrag_q); + + plist = get_next(plist); + + while (rtw_end_of_queue_search(phead, plist) == false) { + pnextrframe = LIST_CONTAINOR(plist, union recv_frame , u); + pnfhdr = &pnextrframe->u.hdr; + + /* check the fragment sequence (2nd ~n fragment frame) */ + + if (curfragnum != pnfhdr->attrib.frag_num) { + /* the fragment number must be increasing (after decache) */ + /* release the defrag_q & prframe */ + rtw_free_recvframe(prframe, pfree_recv_queue); + rtw_free_recvframe_queue(defrag_q, pfree_recv_queue); + return NULL; + } + + curfragnum++; + + /* copy the 2nd~n fragment frame's payload to the first fragment */ + /* get the 2nd~last fragment frame's payload */ + + wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len; + + recvframe_pull(pnextrframe, wlanhdr_offset); + + /* append to first fragment frame's tail (if privacy frame, pull the ICV) */ + recvframe_pull_tail(prframe, pfhdr->attrib.icv_len); + + /* memcpy */ + memcpy(pfhdr->rx_tail, pnfhdr->rx_data, pnfhdr->len); + + recvframe_put(prframe, pnfhdr->len); + + pfhdr->attrib.icv_len = pnfhdr->attrib.icv_len; + plist = get_next(plist); + }; + + /* free the defrag_q queue and return the prframe */ + rtw_free_recvframe_queue(defrag_q, pfree_recv_queue); + + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("Performance defrag!!!!!\n")); + +_func_exit_; + + return prframe; +} + +/* check if need to defrag, if needed queue the frame to defrag_q */ +union recv_frame *recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame) +{ + u8 ismfrag; + u8 fragnum; + u8 *psta_addr; + struct recv_frame_hdr *pfhdr; + struct sta_info *psta; + struct sta_priv *pstapriv; + struct list_head *phead; + union recv_frame *prtnframe = NULL; + struct __queue *pfree_recv_queue, *pdefrag_q; + +_func_enter_; + + pstapriv = &padapter->stapriv; + + pfhdr = &precv_frame->u.hdr; + + pfree_recv_queue = &padapter->recvpriv.free_recv_queue; + + /* need to define struct of wlan header frame ctrl */ + ismfrag = pfhdr->attrib.mfrag; + fragnum = pfhdr->attrib.frag_num; + + psta_addr = pfhdr->attrib.ta; + psta = rtw_get_stainfo(pstapriv, psta_addr); + if (psta == NULL) { + u8 type = GetFrameType(pfhdr->rx_data); + if (type != WIFI_DATA_TYPE) { + psta = rtw_get_bcmc_stainfo(padapter); + pdefrag_q = &psta->sta_recvpriv.defrag_q; + } else { + pdefrag_q = NULL; + } + } else { + pdefrag_q = &psta->sta_recvpriv.defrag_q; + } + + if ((ismfrag == 0) && (fragnum == 0)) + prtnframe = precv_frame;/* isn't a fragment frame */ + + if (ismfrag == 1) { + /* 0~(n-1) fragment frame */ + /* enqueue to defraf_g */ + if (pdefrag_q != NULL) { + if (fragnum == 0) { + /* the first fragment */ + if (_rtw_queue_empty(pdefrag_q) == false) { + /* free current defrag_q */ + rtw_free_recvframe_queue(pdefrag_q, pfree_recv_queue); + } + } + + /* Then enqueue the 0~(n-1) fragment into the defrag_q */ + + phead = get_list_head(pdefrag_q); + rtw_list_insert_tail(&pfhdr->list, phead); + + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("Enqueuq: ismfrag=%d, fragnum=%d\n", ismfrag, fragnum)); + + prtnframe = NULL; + } else { + /* can't find this ta's defrag_queue, so free this recv_frame */ + rtw_free_recvframe(precv_frame, pfree_recv_queue); + prtnframe = NULL; + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("Free because pdefrag_q==NULL: ismfrag=%d, fragnum=%d\n", ismfrag, fragnum)); + } + } + + if ((ismfrag == 0) && (fragnum != 0)) { + /* the last fragment frame */ + /* enqueue the last fragment */ + if (pdefrag_q != NULL) { + phead = get_list_head(pdefrag_q); + rtw_list_insert_tail(&pfhdr->list, phead); + + /* call recvframe_defrag to defrag */ + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("defrag: ismfrag=%d, fragnum=%d\n", ismfrag, fragnum)); + precv_frame = recvframe_defrag(padapter, pdefrag_q); + prtnframe = precv_frame; + } else { + /* can't find this ta's defrag_queue, so free this recv_frame */ + rtw_free_recvframe(precv_frame, pfree_recv_queue); + prtnframe = NULL; + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("Free because pdefrag_q==NULL: ismfrag=%d, fragnum=%d\n", ismfrag, fragnum)); + } + } + + if ((prtnframe != NULL) && (prtnframe->u.hdr.attrib.privacy)) { + /* after defrag we must check tkip mic code */ + if (recvframe_chkmic(padapter, prtnframe) == _FAIL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic(padapter, prtnframe)==_FAIL\n")); + rtw_free_recvframe(prtnframe, pfree_recv_queue); + prtnframe = NULL; + } + } + +_func_exit_; + + return prtnframe; +} + +static int amsdu_to_msdu(struct adapter *padapter, union recv_frame *prframe) +{ + int a_len, padding_len; + u16 eth_type, nSubframe_Length; + u8 nr_subframes, i; + unsigned char *pdata; + struct rx_pkt_attrib *pattrib; + unsigned char *data_ptr; + struct sk_buff *sub_skb, *subframes[MAX_SUBFRAME_COUNT]; + struct recv_priv *precvpriv = &padapter->recvpriv; + struct __queue *pfree_recv_queue = &(precvpriv->free_recv_queue); + int ret = _SUCCESS; + nr_subframes = 0; + + pattrib = &prframe->u.hdr.attrib; + + recvframe_pull(prframe, prframe->u.hdr.attrib.hdrlen); + + if (prframe->u.hdr.attrib.iv_len > 0) + recvframe_pull(prframe, prframe->u.hdr.attrib.iv_len); + + a_len = prframe->u.hdr.len; + + pdata = prframe->u.hdr.rx_data; + + while (a_len > ETH_HLEN) { + /* Offset 12 denote 2 mac address */ + nSubframe_Length = RTW_GET_BE16(pdata + 12); + + if (a_len < (ETHERNET_HEADER_SIZE + nSubframe_Length)) { + DBG_88E("nRemain_Length is %d and nSubframe_Length is : %d\n", a_len, nSubframe_Length); + goto exit; + } + + /* move the data point to data content */ + pdata += ETH_HLEN; + a_len -= ETH_HLEN; + + /* Allocate new skb for releasing to upper layer */ + sub_skb = dev_alloc_skb(nSubframe_Length + 12); + if (sub_skb) { + skb_reserve(sub_skb, 12); + data_ptr = (u8 *)skb_put(sub_skb, nSubframe_Length); + memcpy(data_ptr, pdata, nSubframe_Length); + } else { + sub_skb = skb_clone(prframe->u.hdr.pkt, GFP_ATOMIC); + if (sub_skb) { + sub_skb->data = pdata; + sub_skb->len = nSubframe_Length; + skb_set_tail_pointer(sub_skb, nSubframe_Length); + } else { + DBG_88E("skb_clone() Fail!!! , nr_subframes=%d\n", nr_subframes); + break; + } + } + + subframes[nr_subframes++] = sub_skb; + + if (nr_subframes >= MAX_SUBFRAME_COUNT) { + DBG_88E("ParseSubframe(): Too many Subframes! Packets dropped!\n"); + break; + } + + pdata += nSubframe_Length; + a_len -= nSubframe_Length; + if (a_len != 0) { + padding_len = 4 - ((nSubframe_Length + ETH_HLEN) & (4-1)); + if (padding_len == 4) { + padding_len = 0; + } + + if (a_len < padding_len) { + goto exit; + } + pdata += padding_len; + a_len -= padding_len; + } + } + + for (i = 0; i < nr_subframes; i++) { + sub_skb = subframes[i]; + /* convert hdr + possible LLC headers into Ethernet header */ + eth_type = RTW_GET_BE16(&sub_skb->data[6]); + if (sub_skb->len >= 8 && + ((_rtw_memcmp(sub_skb->data, rtw_rfc1042_header, SNAP_SIZE) && + eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || + _rtw_memcmp(sub_skb->data, rtw_bridge_tunnel_header, SNAP_SIZE))) { + /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */ + skb_pull(sub_skb, SNAP_SIZE); + memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN); + memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN); + } else { + __be16 len; + /* Leave Ethernet header part of hdr and full payload */ + len = htons(sub_skb->len); + memcpy(skb_push(sub_skb, 2), &len, 2); + memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN); + memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN); + } + + /* Indicat the packets to upper layer */ + if (sub_skb) { + /* Insert NAT2.5 RX here! */ + sub_skb->protocol = eth_type_trans(sub_skb, padapter->pnetdev); + sub_skb->dev = padapter->pnetdev; + + sub_skb->ip_summed = CHECKSUM_NONE; + + netif_rx(sub_skb); + } + } + +exit: + + prframe->u.hdr.len = 0; + rtw_free_recvframe(prframe, pfree_recv_queue);/* free this recv_frame */ + + return ret; +} + +static int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num) +{ + u8 wsize = preorder_ctrl->wsize_b; + u16 wend = (preorder_ctrl->indicate_seq + wsize - 1) & 0xFFF;/* 4096; */ + + /* Rx Reorder initialize condition. */ + if (preorder_ctrl->indicate_seq == 0xFFFF) + preorder_ctrl->indicate_seq = seq_num; + + /* Drop out the packet which SeqNum is smaller than WinStart */ + if (SN_LESS(seq_num, preorder_ctrl->indicate_seq)) + return false; + + /* */ + /* Sliding window manipulation. Conditions includes: */ + /* 1. Incoming SeqNum is equal to WinStart =>Window shift 1 */ + /* 2. Incoming SeqNum is larger than the WinEnd => Window shift N */ + /* */ + if (SN_EQUAL(seq_num, preorder_ctrl->indicate_seq)) { + preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF; + } else if (SN_LESS(wend, seq_num)) { + if (seq_num >= (wsize - 1)) + preorder_ctrl->indicate_seq = seq_num + 1 - wsize; + else + preorder_ctrl->indicate_seq = 0xFFF - (wsize - (seq_num + 1)) + 1; + } + + return true; +} + +int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe); +int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe) +{ + struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; + struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; + struct list_head *phead, *plist; + union recv_frame *pnextrframe; + struct rx_pkt_attrib *pnextattrib; + + phead = get_list_head(ppending_recvframe_queue); + plist = get_next(phead); + + while (rtw_end_of_queue_search(phead, plist) == false) { + pnextrframe = LIST_CONTAINOR(plist, union recv_frame, u); + pnextattrib = &pnextrframe->u.hdr.attrib; + + if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num)) + plist = get_next(plist); + else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num)) + return false; + else + break; + } + + rtw_list_delete(&(prframe->u.hdr.list)); + + rtw_list_insert_tail(&(prframe->u.hdr.list), plist); + return true; +} + +static int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced) +{ + struct list_head *phead, *plist; + union recv_frame *prframe; + struct rx_pkt_attrib *pattrib; + int bPktInBuf = false; + struct recv_priv *precvpriv = &padapter->recvpriv; + struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; + + phead = get_list_head(ppending_recvframe_queue); + plist = get_next(phead); + + /* Handling some condition for forced indicate case. */ + if (bforced) { + if (rtw_is_list_empty(phead)) + return true; + + prframe = LIST_CONTAINOR(plist, union recv_frame, u); + pattrib = &prframe->u.hdr.attrib; + preorder_ctrl->indicate_seq = pattrib->seq_num; + } + + /* Prepare indication list and indication. */ + /* Check if there is any packet need indicate. */ + while (!rtw_is_list_empty(phead)) { + prframe = LIST_CONTAINOR(plist, union recv_frame, u); + pattrib = &prframe->u.hdr.attrib; + + if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, + ("recv_indicatepkts_in_order: indicate=%d seq=%d amsdu=%d\n", + preorder_ctrl->indicate_seq, pattrib->seq_num, pattrib->amsdu)); + plist = get_next(plist); + rtw_list_delete(&(prframe->u.hdr.list)); + + if (SN_EQUAL(preorder_ctrl->indicate_seq, pattrib->seq_num)) + preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF; + + /* Set this as a lock to make sure that only one thread is indicating packet. */ + + /* indicate this recv_frame */ + if (!pattrib->amsdu) { + if ((!padapter->bDriverStopped) && + (!padapter->bSurpriseRemoved)) + rtw_recv_indicatepkt(padapter, prframe);/* indicate this recv_frame */ + } else if (pattrib->amsdu == 1) { + if (amsdu_to_msdu(padapter, prframe) != _SUCCESS) + rtw_free_recvframe(prframe, &precvpriv->free_recv_queue); + } else { + /* error condition; */ + } + + /* Update local variables. */ + bPktInBuf = false; + } else { + bPktInBuf = true; + break; + } + } + return bPktInBuf; +} + +static int recv_indicatepkt_reorder(struct adapter *padapter, union recv_frame *prframe) +{ + unsigned long irql; + int retval = _SUCCESS; + struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; + struct recv_reorder_ctrl *preorder_ctrl = prframe->u.hdr.preorder_ctrl; + struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; + + if (!pattrib->amsdu) { + /* s1. */ + wlanhdr_to_ethhdr(prframe); + + if ((pattrib->qos != 1) || (pattrib->eth_type == 0x0806) || + (pattrib->ack_policy != 0)) { + if ((!padapter->bDriverStopped) && + (!padapter->bSurpriseRemoved)) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ recv_indicatepkt_reorder -recv_func recv_indicatepkt\n")); + + rtw_recv_indicatepkt(padapter, prframe); + return _SUCCESS; + } + + return _FAIL; + } + + if (!preorder_ctrl->enable) { + /* indicate this recv_frame */ + preorder_ctrl->indicate_seq = pattrib->seq_num; + rtw_recv_indicatepkt(padapter, prframe); + + preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096; + return _SUCCESS; + } + } else if (pattrib->amsdu == 1) { /* temp filter -> means didn't support A-MSDUs in a A-MPDU */ + if (!preorder_ctrl->enable) { + preorder_ctrl->indicate_seq = pattrib->seq_num; + retval = amsdu_to_msdu(padapter, prframe); + + preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096; + return retval; + } + } + + _enter_critical_bh(&ppending_recvframe_queue->lock, &irql); + + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, + ("recv_indicatepkt_reorder: indicate=%d seq=%d\n", + preorder_ctrl->indicate_seq, pattrib->seq_num)); + + /* s2. check if winstart_b(indicate_seq) needs to been updated */ + if (!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) { + rtw_recv_indicatepkt(padapter, prframe); + + _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); + + goto _success_exit; + } + + /* s3. Insert all packet into Reorder Queue to maintain its ordering. */ + if (!enqueue_reorder_recvframe(preorder_ctrl, prframe)) + goto _err_exit; + + /* s4. */ + /* Indication process. */ + /* After Packet dropping and Sliding Window shifting as above, we can now just indicate the packets */ + /* with the SeqNum smaller than latest WinStart and buffer other packets. */ + /* */ + /* For Rx Reorder condition: */ + /* 1. All packets with SeqNum smaller than WinStart => Indicate */ + /* 2. All packets with SeqNum larger than or equal to WinStart => Buffer it. */ + /* */ + + /* recv_indicatepkts_in_order(padapter, preorder_ctrl, true); */ + if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false)) { + _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME); + _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); + } else { + _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); + _cancel_timer_ex(&preorder_ctrl->reordering_ctrl_timer); + } + +_success_exit: + + return _SUCCESS; + +_err_exit: + + _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); + + return _FAIL; +} + +void rtw_reordering_ctrl_timeout_handler(void *pcontext) +{ + unsigned long irql; + struct recv_reorder_ctrl *preorder_ctrl = (struct recv_reorder_ctrl *)pcontext; + struct adapter *padapter = preorder_ctrl->padapter; + struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; + + if (padapter->bDriverStopped || padapter->bSurpriseRemoved) + return; + + _enter_critical_bh(&ppending_recvframe_queue->lock, &irql); + + if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true) + _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME); + + _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); +} + +static int process_recv_indicatepkts(struct adapter *padapter, union recv_frame *prframe) +{ + int retval = _SUCCESS; + /* struct recv_priv *precvpriv = &padapter->recvpriv; */ + /* struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; */ + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + struct ht_priv *phtpriv = &pmlmepriv->htpriv; + + if (phtpriv->ht_option) { /* B/G/N Mode */ + /* prframe->u.hdr.preorder_ctrl = &precvpriv->recvreorder_ctrl[pattrib->priority]; */ + + if (recv_indicatepkt_reorder(padapter, prframe) != _SUCCESS) { + /* including perform A-MPDU Rx Ordering Buffer Control */ + if ((!padapter->bDriverStopped) && + (!padapter->bSurpriseRemoved)) { + retval = _FAIL; + return retval; + } + } + } else { /* B/G mode */ + retval = wlanhdr_to_ethhdr (prframe); + if (retval != _SUCCESS) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("wlanhdr_to_ethhdr: drop pkt\n")); + return retval; + } + + if ((!padapter->bDriverStopped) && + (!padapter->bSurpriseRemoved)) { + /* indicate this recv_frame */ + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n")); + rtw_recv_indicatepkt(padapter, prframe); + } else { + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n")); + + RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved)); + retval = _FAIL; + return retval; + } + } + + return retval; +} + +static int recv_func_prehandle(struct adapter *padapter, union recv_frame *rframe) +{ + int ret = _SUCCESS; + struct rx_pkt_attrib *pattrib = &rframe->u.hdr.attrib; + struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + + if (padapter->registrypriv.mp_mode == 1) { + if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true)) { /* padapter->mppriv.check_mp_pkt == 0)) */ + if (pattrib->crc_err == 1) + padapter->mppriv.rx_crcerrpktcount++; + else + padapter->mppriv.rx_pktcount++; + + if (check_fwstate(pmlmepriv, WIFI_MP_LPBK_STATE) == false) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_alert_, ("MP - Not in loopback mode , drop pkt\n")); + ret = _FAIL; + rtw_free_recvframe(rframe, pfree_recv_queue);/* free this recv_frame */ + goto exit; + } + } + } + + /* check the frame crtl field and decache */ + ret = validate_recv_frame(padapter, rframe); + if (ret != _SUCCESS) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recv_func: validate_recv_frame fail! drop pkt\n")); + rtw_free_recvframe(rframe, pfree_recv_queue);/* free this recv_frame */ + goto exit; + } + +exit: + return ret; +} + +static int recv_func_posthandle(struct adapter *padapter, union recv_frame *prframe) +{ + int ret = _SUCCESS; + union recv_frame *orig_prframe = prframe; + struct recv_priv *precvpriv = &padapter->recvpriv; + struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue; + + /* DATA FRAME */ + rtw_led_control(padapter, LED_CTL_RX); + + prframe = decryptor(padapter, prframe); + if (prframe == NULL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("decryptor: drop pkt\n")); + ret = _FAIL; + goto _recv_data_drop; + } + + prframe = recvframe_chk_defrag(padapter, prframe); + if (prframe == NULL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chk_defrag: drop pkt\n")); + goto _recv_data_drop; + } + + prframe = portctrl(padapter, prframe); + if (prframe == NULL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("portctrl: drop pkt\n")); + ret = _FAIL; + goto _recv_data_drop; + } + + count_rx_stats(padapter, prframe, NULL); + + ret = process_recv_indicatepkts(padapter, prframe); + if (ret != _SUCCESS) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recv_func: process_recv_indicatepkts fail!\n")); + rtw_free_recvframe(orig_prframe, pfree_recv_queue);/* free this recv_frame */ + goto _recv_data_drop; + } + return ret; + +_recv_data_drop: + precvpriv->rx_drop++; + return ret; +} + +static int recv_func(struct adapter *padapter, union recv_frame *rframe) +{ + int ret; + struct rx_pkt_attrib *prxattrib = &rframe->u.hdr.attrib; + struct security_priv *psecuritypriv = &padapter->securitypriv; + struct mlme_priv *mlmepriv = &padapter->mlmepriv; + + /* check if need to handle uc_swdec_pending_queue*/ + if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && psecuritypriv->busetkipkey) { + union recv_frame *pending_frame; + + while ((pending_frame = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue))) { + if (recv_func_posthandle(padapter, pending_frame) == _SUCCESS) + DBG_88E("%s: dequeue uc_swdec_pending_queue\n", __func__); + } + } + + ret = recv_func_prehandle(padapter, rframe); + + if (ret == _SUCCESS) { + /* check if need to enqueue into uc_swdec_pending_queue*/ + if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && + !IS_MCAST(prxattrib->ra) && prxattrib->encrypt > 0 && + (prxattrib->bdecrypted == 0 || psecuritypriv->sw_decrypt) && + !is_wep_enc(psecuritypriv->dot11PrivacyAlgrthm) && + !psecuritypriv->busetkipkey) { + rtw_enqueue_recvframe(rframe, &padapter->recvpriv.uc_swdec_pending_queue); + DBG_88E("%s: no key, enqueue uc_swdec_pending_queue\n", __func__); + goto exit; + } + + ret = recv_func_posthandle(padapter, rframe); + } + +exit: + return ret; +} + +s32 rtw_recv_entry(union recv_frame *precvframe) +{ + struct adapter *padapter; + struct recv_priv *precvpriv; + s32 ret = _SUCCESS; + +_func_enter_; + + padapter = precvframe->u.hdr.adapter; + + precvpriv = &padapter->recvpriv; + + ret = recv_func(padapter, precvframe); + if (ret == _FAIL) { + RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("rtw_recv_entry: recv_func return fail!!!\n")); + goto _recv_entry_drop; + } + + precvpriv->rx_pkts++; + +_func_exit_; + + return ret; + +_recv_entry_drop: + + if (padapter->registrypriv.mp_mode == 1) + padapter->mppriv.rx_pktloss = precvpriv->rx_drop; + +_func_exit_; + + return ret; +} + +void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS) +{ + struct adapter *adapter = (struct adapter *)FunctionContext; + struct recv_priv *recvpriv = &adapter->recvpriv; + + u32 tmp_s, tmp_q; + u8 avg_signal_strength = 0; + u8 avg_signal_qual = 0; + u8 _alpha = 3; /* this value is based on converging_constant = 5000 and sampling_interval = 1000 */ + + if (adapter->recvpriv.is_signal_dbg) { + /* update the user specific value, signal_strength_dbg, to signal_strength, rssi */ + adapter->recvpriv.signal_strength = adapter->recvpriv.signal_strength_dbg; + adapter->recvpriv.rssi = (s8)translate_percentage_to_dbm((u8)adapter->recvpriv.signal_strength_dbg); + } else { + if (recvpriv->signal_strength_data.update_req == 0) {/* update_req is clear, means we got rx */ + avg_signal_strength = recvpriv->signal_strength_data.avg_val; + /* after avg_vals are accquired, we can re-stat the signal values */ + recvpriv->signal_strength_data.update_req = 1; + } + + if (recvpriv->signal_qual_data.update_req == 0) {/* update_req is clear, means we got rx */ + avg_signal_qual = recvpriv->signal_qual_data.avg_val; + /* after avg_vals are accquired, we can re-stat the signal values */ + recvpriv->signal_qual_data.update_req = 1; + } + + /* update value of signal_strength, rssi, signal_qual */ + if (check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY) == false) { + tmp_s = (avg_signal_strength+(_alpha-1)*recvpriv->signal_strength); + if (tmp_s % _alpha) + tmp_s = tmp_s/_alpha + 1; + else + tmp_s = tmp_s/_alpha; + if (tmp_s > 100) + tmp_s = 100; + + tmp_q = (avg_signal_qual+(_alpha-1)*recvpriv->signal_qual); + if (tmp_q % _alpha) + tmp_q = tmp_q/_alpha + 1; + else + tmp_q = tmp_q/_alpha; + if (tmp_q > 100) + tmp_q = 100; + + recvpriv->signal_strength = tmp_s; + recvpriv->rssi = (s8)translate_percentage_to_dbm(tmp_s); + recvpriv->signal_qual = tmp_q; + } + } + rtw_set_signal_stat_timer(recvpriv); +} diff --git a/drivers/staging/rtl8188eu/core/rtw_rf.c b/drivers/staging/rtl8188eu/core/rtw_rf.c new file mode 100644 index 000000000000..1170dd001c1f --- /dev/null +++ b/drivers/staging/rtl8188eu/core/rtw_rf.c @@ -0,0 +1,89 @@ +/****************************************************************************** + * + * Copyright(c) 2007 - 2011 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_RF_C_ + +#include +#include +#include +#include + + +struct ch_freq { + u32 channel; + u32 frequency; +}; + +static struct ch_freq ch_freq_map[] = { + {1, 2412}, {2, 2417}, {3, 2422}, {4, 2427}, {5, 2432}, + {6, 2437}, {7, 2442}, {8, 2447}, {9, 2452}, {10, 2457}, + {11, 2462}, {12, 2467}, {13, 2472}, {14, 2484}, + /* UNII */ + {36, 5180}, {40, 5200}, {44, 5220}, {48, 5240}, {52, 5260}, + {56, 5280}, {60, 5300}, {64, 5320}, {149, 5745}, {153, 5765}, + {157, 5785}, {161, 5805}, {165, 5825}, {167, 5835}, {169, 5845}, + {171, 5855}, {173, 5865}, + /* HiperLAN2 */ + {100, 5500}, {104, 5520}, {108, 5540}, {112, 5560}, {116, 5580}, + {120, 5600}, {124, 5620}, {128, 5640}, {132, 5660}, {136, 5680}, + {140, 5700}, + /* Japan MMAC */ + {34, 5170}, {38, 5190}, {42, 5210}, {46, 5230}, + /* Japan */ + {184, 4920}, {188, 4940}, {192, 4960}, {196, 4980}, + {208, 5040},/* Japan, means J08 */ + {212, 5060},/* Japan, means J12 */ + {216, 5080},/* Japan, means J16 */ +}; + +static int ch_freq_map_num = (sizeof(ch_freq_map) / sizeof(struct ch_freq)); + +u32 rtw_ch2freq(u32 channel) +{ + u8 i; + u32 freq = 0; + + for (i = 0; i < ch_freq_map_num; i++) { + if (channel == ch_freq_map[i].channel) { + freq = ch_freq_map[i].frequency; + break; + } + } + if (i == ch_freq_map_num) + freq = 2412; + + return freq; +} + +u32 rtw_freq2ch(u32 freq) +{ + u8 i; + u32 ch = 0; + + for (i = 0; i < ch_freq_map_num; i++) { + if (freq == ch_freq_map[i].frequency) { + ch = ch_freq_map[i].channel; + break; + } + } + if (i == ch_freq_map_num) + ch = 1; + + return ch; +}