mirror of
https://github.com/Mange/rtl8192eu-linux-driver
synced 2024-11-01 11:15:31 +00:00
438 lines
11 KiB
C
438 lines
11 KiB
C
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/******************************************************************************
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*
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* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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//============================================================
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// include files
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//============================================================
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#include "../odm_precomp.h"
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#if (RTL8192E_SUPPORT == 1)
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VOID
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odm_Write_Dynamic_CCA(
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IN PDM_ODM_T pDM_Odm,
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IN u1Byte CurrentMFstate
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)
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{
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pPri_CCA_T PrimaryCCA = &(pDM_Odm->DM_PriCCA);
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if (PrimaryCCA->MF_state != CurrentMFstate){
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ODM_SetBBReg(pDM_Odm, ODM_REG_L1SBD_PD_CH_11N, BIT8|BIT7, CurrentMFstate);
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}
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PrimaryCCA->MF_state = CurrentMFstate;
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}
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VOID
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odm_PrimaryCCA_Check_Init(
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IN PDM_ODM_T pDM_Odm)
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{
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#if((DM_ODM_SUPPORT_TYPE==ODM_WIN) ||(DM_ODM_SUPPORT_TYPE==ODM_AP))
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PADAPTER pAdapter = pDM_Odm->Adapter;
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pPri_CCA_T PrimaryCCA = &(pDM_Odm->DM_PriCCA);
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HAL_DATA_TYPE *pHalData = GET_HAL_DATA(pAdapter);
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pHalData->RTSEN = 0;
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PrimaryCCA->DupRTS_flag = 0;
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PrimaryCCA->intf_flag = 0;
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PrimaryCCA->intf_type = 0;
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PrimaryCCA->Monitor_flag = 0;
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PrimaryCCA->PriCCA_flag = 0;
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PrimaryCCA->CH_offset = 0;
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PrimaryCCA->MF_state = 0;
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#endif
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}
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VOID
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odm_DynamicPrimaryCCA_Check(
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IN PDM_ODM_T pDM_Odm
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)
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{
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if(pDM_Odm->SupportICType != ODM_RTL8192E)
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return;
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switch (pDM_Odm->SupportPlatform)
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{
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case ODM_WIN:
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#if(DM_ODM_SUPPORT_TYPE==ODM_WIN)
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odm_DynamicPrimaryCCAMP(pDM_Odm);
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#endif
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break;
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case ODM_CE:
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#if(DM_ODM_SUPPORT_TYPE==ODM_CE)
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#endif
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break;
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case ODM_AP:
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#if (DM_ODM_SUPPORT_TYPE == ODM_AP)
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odm_DynamicPrimaryCCAAP(pDM_Odm);
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#endif
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break;
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}
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}
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#if(DM_ODM_SUPPORT_TYPE==ODM_WIN)
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VOID
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odm_DynamicPrimaryCCAMP(
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IN PDM_ODM_T pDM_Odm
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)
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{
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PADAPTER pAdapter = pDM_Odm->Adapter;
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HAL_DATA_TYPE *pHalData = GET_HAL_DATA(pAdapter);
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PFALSE_ALARM_STATISTICS FalseAlmCnt = &(pDM_Odm->FalseAlmCnt);
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pPri_CCA_T PrimaryCCA = &(pDM_Odm->DM_PriCCA);
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BOOLEAN Is40MHz = FALSE;
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u8Byte OFDM_CCA, OFDM_FA, BW_USC_Cnt, BW_LSC_Cnt;
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u1Byte SecCHOffset;
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u1Byte CurMFstate;
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static u1Byte CountDown = Monitor_TIME;
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OFDM_CCA = FalseAlmCnt->Cnt_OFDM_CCA;
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OFDM_FA = FalseAlmCnt->Cnt_Ofdm_fail;
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BW_USC_Cnt = FalseAlmCnt->Cnt_BW_USC;
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BW_LSC_Cnt = FalseAlmCnt->Cnt_BW_LSC;
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ODM_RT_TRACE(pDM_Odm,ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("92E: OFDM CCA=%d\n", OFDM_CCA));
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ODM_RT_TRACE(pDM_Odm,ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("92E: OFDM FA=%d\n", OFDM_FA));
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ODM_RT_TRACE(pDM_Odm,ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("92E: BW_USC=%d\n", BW_USC_Cnt));
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ODM_RT_TRACE(pDM_Odm,ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("92E: BW_LSC=%d\n", BW_LSC_Cnt));
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Is40MHz = *(pDM_Odm->pBandWidth);
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SecCHOffset = *(pDM_Odm->pSecChOffset); // NIC: 2: sec is below, 1: sec is above
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//DbgPrint("92E: SecCHOffset = %d\n", SecCHOffset);
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if(IsAPModeExist(pAdapter)){
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CurMFstate = MF_USC_LSC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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return;
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}
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if(!pDM_Odm->bLinked){
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return;
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}
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else{
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if(Is40MHz){
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ODM_RT_TRACE(pDM_Odm,ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("92E: Cont Down= %d\n", CountDown));
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ODM_RT_TRACE(pDM_Odm,ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("92E: Primary_CCA_flag=%d\n", PrimaryCCA->PriCCA_flag));
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ODM_RT_TRACE(pDM_Odm,ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("92E: Intf_Type=%d\n", PrimaryCCA->intf_type));
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ODM_RT_TRACE(pDM_Odm,ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("92E: Intf_flag=%d\n", PrimaryCCA->intf_flag ));
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ODM_RT_TRACE(pDM_Odm,ODM_COMP_DYNAMIC_PRICCA, ODM_DBG_LOUD, ("92E: Duplicate RTS Flag=%d\n", PrimaryCCA->DupRTS_flag));
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//DbgPrint("92E RTS_EN=%d\n", pHalData->RTSEN);
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if(PrimaryCCA->PriCCA_flag == 0){
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if(SecCHOffset == 2){ // Primary channel is above NOTE: duplicate CTS can remove this condition
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if((OFDM_CCA > OFDMCCA_TH) && (BW_LSC_Cnt>(BW_USC_Cnt + BW_Ind_Bias))
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&& (OFDM_FA>(OFDM_CCA>>1))){
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PrimaryCCA->intf_type = 1;
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PrimaryCCA->intf_flag = 1;
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CurMFstate = MF_USC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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PrimaryCCA->PriCCA_flag = 1;
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}
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else if((OFDM_CCA > OFDMCCA_TH) && (BW_LSC_Cnt>(BW_USC_Cnt + BW_Ind_Bias))
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&& (OFDM_FA < (OFDM_CCA>>1))){
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PrimaryCCA->intf_type = 2;
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PrimaryCCA->intf_flag = 1;
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CurMFstate = MF_USC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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PrimaryCCA->PriCCA_flag = 1;
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PrimaryCCA->DupRTS_flag = 1;
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pHalData->RTSEN = 1;
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}
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else{
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PrimaryCCA->intf_type = 0;
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PrimaryCCA->intf_flag = 0;
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CurMFstate = MF_USC_LSC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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pHalData->RTSEN = 0;
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PrimaryCCA->DupRTS_flag = 0;
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}
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}
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else if (SecCHOffset == 1){
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if((OFDM_CCA > OFDMCCA_TH) && (BW_USC_Cnt > (BW_LSC_Cnt + BW_Ind_Bias))
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&& (OFDM_FA > (OFDM_CCA>>1))){
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PrimaryCCA->intf_type = 1;
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PrimaryCCA->intf_flag = 1;
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CurMFstate = MF_LSC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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PrimaryCCA->PriCCA_flag = 1;
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}
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else if((OFDM_CCA > OFDMCCA_TH) && (BW_USC_Cnt>(BW_LSC_Cnt + BW_Ind_Bias))
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&& (OFDM_FA < (OFDM_CCA>>1))){
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PrimaryCCA->intf_type = 2;
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PrimaryCCA->intf_flag = 1;
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CurMFstate = MF_LSC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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PrimaryCCA->PriCCA_flag = 1;
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PrimaryCCA->DupRTS_flag = 1;
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pHalData->RTSEN = 1;
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}
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else{
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PrimaryCCA->intf_type = 0;
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PrimaryCCA->intf_flag = 0;
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CurMFstate = MF_USC_LSC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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pHalData->RTSEN = 0;
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PrimaryCCA->DupRTS_flag = 0;
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}
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}
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}
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else{ // PrimaryCCA->PriCCA_flag==1
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CountDown--;
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if(CountDown == 0){
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CountDown = Monitor_TIME;
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PrimaryCCA->PriCCA_flag = 0;
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CurMFstate = MF_USC_LSC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate); // default
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pHalData->RTSEN = 0;
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PrimaryCCA->DupRTS_flag = 0;
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PrimaryCCA->intf_type = 0;
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PrimaryCCA->intf_flag = 0;
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}
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}
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}
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else{
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return;
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}
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}
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}
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#elif(DM_ODM_SUPPORT_TYPE == ODM_AP)
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VOID
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odm_DynamicPrimaryCCAAP(
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IN PDM_ODM_T pDM_Odm
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)
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{
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PADAPTER Adapter = pDM_Odm->Adapter;
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prtl8192cd_priv priv = pDM_Odm->priv;
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PFALSE_ALARM_STATISTICS FalseAlmCnt = &(pDM_Odm->FalseAlmCnt);
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pPri_CCA_T PrimaryCCA = &(pDM_Odm->DM_PriCCA);
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HAL_DATA_TYPE *pHalData = GET_HAL_DATA(Adapter);
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u1Byte i;
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static u4Byte Count_Down = Monitor_TIME;
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BOOLEAN STA_BW = FALSE, STA_BW_pre = FALSE, STA_BW_TMP = FALSE;
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BOOLEAN bConnected = FALSE;
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BOOLEAN Is40MHz = FALSE;
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u1Byte SecCHOffset;
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u1Byte CurMFstate;
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PSTA_INFO_T pstat;
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Is40MHz = *(pDM_Odm->pBandWidth);
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SecCHOffset = *(pDM_Odm->pSecChOffset); // AP: 1: sec is below, 2: sec is above
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for(i=0; i<ODM_ASSOCIATE_ENTRY_NUM; i++){
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pstat = pDM_Odm->pODM_StaInfo[i];
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if(IS_STA_VALID(pstat)){
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STA_BW_TMP = pstat->tx_bw;
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if(STA_BW_TMP > STA_BW){
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STA_BW = STA_BW_TMP;
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}
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bConnected = TRUE;
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}
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}
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if(Is40MHz){
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if(PrimaryCCA->PriCCA_flag == 0){
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if(bConnected){
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if(STA_BW == 0){ //2 STA BW=20M
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PrimaryCCA->PriCCA_flag = 1;
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if(SecCHOffset==1){
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CurMFstate = MF_USC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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}
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else if(SecCHOffset==2){
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CurMFstate = MF_USC;
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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}
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}
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else{ //2 STA BW=40M
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if(PrimaryCCA->intf_flag == 0){
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odm_Intf_Detection(pDM_Odm);
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}
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else{ // intf_flag = 1
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if(PrimaryCCA->intf_type == 1){
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if(PrimaryCCA->CH_offset == 1){
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CurMFstate = MF_USC;
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if(SecCHOffset == 1){ // AP, 1: primary is above 2: primary is below
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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}
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}
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else if(PrimaryCCA->CH_offset == 2){
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CurMFstate = MF_LSC;
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if(SecCHOffset == 2){
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odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
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}
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}
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}
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else if(PrimaryCCA->intf_type==2){
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if(PrimaryCCA->CH_offset==1){
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//ODM_SetBBReg(pDM_Odm, ODM_REG_L1SBD_PD_CH_11N, BIT8|BIT7, MF_USC);
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pHalData->RTSEN = 1;
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}
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else if(PrimaryCCA->CH_offset==2){
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//ODM_SetBBReg(pDM_Odm, ODM_REG_L1SBD_PD_CH_11N, BIT8|BIT7, MF_LSC);
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pHalData->RTSEN = 1;
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}
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}
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}
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}
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}
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else{ // disconnected interference detection
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odm_Intf_Detection(pDM_Odm);
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}// end of disconnected
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}
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else{ // PrimaryCCA->PriCCA_flag == 1
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if(STA_BW==0){
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STA_BW_pre = STA_BW;
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return;
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}
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|
Count_Down--;
|
||
|
|
if((Count_Down == 0) || ((STA_BW & STA_BW_pre) != 1)){
|
||
|
|
|
||
|
|
Count_Down = Monitor_TIME;
|
||
|
|
PrimaryCCA->PriCCA_flag = 0;
|
||
|
|
PrimaryCCA->intf_type = 0;
|
||
|
|
PrimaryCCA->intf_flag = 0;
|
||
|
|
CurMFstate = MF_USC_LSC;
|
||
|
|
odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate); // default
|
||
|
|
pHalData->RTSEN = 0;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
STA_BW_pre = STA_BW;
|
||
|
|
|
||
|
|
}
|
||
|
|
else{
|
||
|
|
//2 Reset
|
||
|
|
odm_PrimaryCCA_Check_Init(pDM_Odm);
|
||
|
|
CurMFstate = MF_USC_LSC;
|
||
|
|
odm_Write_Dynamic_CCA(pDM_Odm, CurMFstate);
|
||
|
|
Count_Down = Monitor_TIME;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
VOID
|
||
|
|
odm_Intf_Detection(
|
||
|
|
IN PDM_ODM_T pDM_Odm
|
||
|
|
)
|
||
|
|
{
|
||
|
|
PFALSE_ALARM_STATISTICS FalseAlmCnt = &(pDM_Odm->FalseAlmCnt);
|
||
|
|
pPri_CCA_T PrimaryCCA = &(pDM_Odm->DM_PriCCA);
|
||
|
|
|
||
|
|
if((FalseAlmCnt->Cnt_OFDM_CCA>OFDMCCA_TH)
|
||
|
|
&&(FalseAlmCnt->Cnt_BW_LSC>(FalseAlmCnt->Cnt_BW_USC+BW_Ind_Bias))){
|
||
|
|
|
||
|
|
PrimaryCCA->intf_flag = 1;
|
||
|
|
PrimaryCCA->CH_offset = 1; // 1:LSC, 2:USC
|
||
|
|
if(FalseAlmCnt->Cnt_Ofdm_fail>(FalseAlmCnt->Cnt_OFDM_CCA>>1)){
|
||
|
|
PrimaryCCA->intf_type = 1;
|
||
|
|
}
|
||
|
|
else{
|
||
|
|
PrimaryCCA->intf_type = 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if((FalseAlmCnt->Cnt_OFDM_CCA>OFDMCCA_TH)
|
||
|
|
&&(FalseAlmCnt->Cnt_BW_USC>(FalseAlmCnt->Cnt_BW_LSC+BW_Ind_Bias))){
|
||
|
|
|
||
|
|
PrimaryCCA->intf_flag = 1;
|
||
|
|
PrimaryCCA->CH_offset = 2; // 1:LSC, 2:USC
|
||
|
|
if(FalseAlmCnt->Cnt_Ofdm_fail>(FalseAlmCnt->Cnt_OFDM_CCA>>1)){
|
||
|
|
PrimaryCCA->intf_type = 1;
|
||
|
|
}
|
||
|
|
else{
|
||
|
|
PrimaryCCA->intf_type = 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else{
|
||
|
|
PrimaryCCA->intf_flag = 0;
|
||
|
|
PrimaryCCA->intf_type = 0;
|
||
|
|
PrimaryCCA->CH_offset = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#endif // RTL8192E_SUPPORT == 1
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|