staging: r8188eu: Add files for new driver - part 5
authorLarry Finger <Larry.Finger@lwfinger.net>
Thu, 22 Aug 2013 03:33:47 +0000 (22:33 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 22 Aug 2013 17:20:00 +0000 (10:20 -0700)
This commit adds core/rtw_pwrctrl.c, core/rtw_recv.c, and core/rtw_rf.c

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/rtl8188eu/core/rtw_pwrctrl.c [new file with mode: 0644]
drivers/staging/rtl8188eu/core/rtw_recv.c [new file with mode: 0644]
drivers/staging/rtl8188eu/core/rtw_rf.c [new file with mode: 0644]

diff --git a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
new file mode 100644 (file)
index 0000000..58a1661
--- /dev/null
@@ -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 <osdep_service.h>
+#include <drv_types.h>
+#include <osdep_intf.h>
+#include <linux/usb.h>
+
+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 (file)
index 0000000..2011657
--- /dev/null
@@ -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 <osdep_service.h>
+#include <drv_types.h>
+#include <recv_osdep.h>
+#include <mlme_osdep.h>
+#include <ip.h>
+#include <if_ether.h>
+#include <ethernet.h>
+#include <usb_ops.h>
+#include <wifi.h>
+
+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 (file)
index 0000000..1170dd0
--- /dev/null
@@ -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 <osdep_service.h>
+#include <drv_types.h>
+#include <recv_osdep.h>
+#include <xmit_osdep.h>
+
+
+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;
+}