| /****************************************************************************** |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| |
| /* */ |
| /* include files */ |
| /* */ |
| |
| #include "odm_precomp.h" |
| |
| static u8 odm_QueryRxPwrPercentage(s8 AntPower) |
| { |
| if ((AntPower <= -100) || (AntPower >= 20)) |
| return 0; |
| else if (AntPower >= 0) |
| return 100; |
| else |
| return 100 + AntPower; |
| } |
| |
| static s32 odm_SignalScaleMapping_92CSeries(struct dm_odm_t *pDM_Odm, s32 CurrSig) |
| { |
| s32 RetSig = 0; |
| |
| if (CurrSig >= 51 && CurrSig <= 100) |
| RetSig = 100; |
| else if (CurrSig >= 41 && CurrSig <= 50) |
| RetSig = 80 + ((CurrSig - 40)*2); |
| else if (CurrSig >= 31 && CurrSig <= 40) |
| RetSig = 66 + (CurrSig - 30); |
| else if (CurrSig >= 21 && CurrSig <= 30) |
| RetSig = 54 + (CurrSig - 20); |
| else if (CurrSig >= 10 && CurrSig <= 20) |
| RetSig = 42 + (((CurrSig - 10) * 2) / 3); |
| else if (CurrSig >= 5 && CurrSig <= 9) |
| RetSig = 22 + (((CurrSig - 5) * 3) / 2); |
| else if (CurrSig >= 1 && CurrSig <= 4) |
| RetSig = 6 + (((CurrSig - 1) * 3) / 2); |
| else |
| RetSig = CurrSig; |
| |
| return RetSig; |
| } |
| |
| static s32 odm_SignalScaleMapping(struct dm_odm_t *pDM_Odm, s32 CurrSig) |
| { |
| return odm_SignalScaleMapping_92CSeries(pDM_Odm, CurrSig); |
| } |
| |
| static u8 |
| odm_EVMdbToPercentage( |
| s8 Value |
| ) |
| { |
| /* */ |
| /* -33dB~0dB to 0%~99% */ |
| /* */ |
| s8 ret_val; |
| |
| ret_val = Value; |
| |
| if (ret_val >= 0) |
| ret_val = 0; |
| if (ret_val <= -33) |
| ret_val = -33; |
| |
| ret_val = 0 - ret_val; |
| ret_val *= 3; |
| |
| if (ret_val == 99) |
| ret_val = 100; |
| |
| return ret_val; |
| } |
| |
| static void odm_RxPhyStatus92CSeries_Parsing(struct dm_odm_t *pDM_Odm, |
| struct phy_info *pPhyInfo, |
| u8 *pPhyStatus, |
| struct odm_packet_info *pPktinfo) |
| { |
| struct phy_status_rpt *pPhyStaRpt = (struct phy_status_rpt *)pPhyStatus; |
| u8 i, Max_spatial_stream; |
| s8 rx_pwr[4], rx_pwr_all = 0; |
| u8 EVM, PWDB_ALL = 0, PWDB_ALL_BT; |
| u8 RSSI, total_rssi = 0; |
| u8 isCCKrate = 0; |
| u8 rf_rx_num = 0; |
| u8 cck_highpwr = 0; |
| |
| isCCKrate = (pPktinfo->Rate <= DESC92C_RATE11M) ? true : false; |
| pPhyInfo->RxMIMOSignalQuality[RF_PATH_A] = -1; |
| pPhyInfo->RxMIMOSignalQuality[RF_PATH_B] = -1; |
| |
| if (isCCKrate) { |
| u8 report; |
| u8 cck_agc_rpt; |
| |
| pDM_Odm->PhyDbgInfo.NumQryPhyStatusCCK++; |
| /* (1)Hardware does not provide RSSI for CCK */ |
| /* (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive) */ |
| |
| cck_highpwr = pDM_Odm->bCckHighPower; |
| |
| cck_agc_rpt = pPhyStaRpt->cck_agc_rpt_ofdm_cfosho_a; |
| |
| /* The RSSI formula should be modified according to the gain table */ |
| if (!cck_highpwr) { |
| report = (cck_agc_rpt & 0xc0)>>6; |
| switch (report) { |
| /* Modify the RF RNA gain value to -40, -20, -2, 14 by Jenyu's suggestion */ |
| /* Note: different RF with the different RNA gain. */ |
| case 0x3: |
| rx_pwr_all = -46 - (cck_agc_rpt & 0x3e); |
| break; |
| case 0x2: |
| rx_pwr_all = -26 - (cck_agc_rpt & 0x3e); |
| break; |
| case 0x1: |
| rx_pwr_all = -12 - (cck_agc_rpt & 0x3e); |
| break; |
| case 0x0: |
| rx_pwr_all = 16 - (cck_agc_rpt & 0x3e); |
| break; |
| } |
| } else { |
| report = (cck_agc_rpt & 0x60)>>5; |
| switch (report) { |
| case 0x3: |
| rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f)<<1); |
| break; |
| case 0x2: |
| rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f)<<1); |
| break; |
| case 0x1: |
| rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f)<<1); |
| break; |
| case 0x0: |
| rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f)<<1); |
| break; |
| } |
| } |
| |
| PWDB_ALL = odm_QueryRxPwrPercentage(rx_pwr_all); |
| |
| /* Modification for ext-LNA board */ |
| if (pDM_Odm->BoardType == ODM_BOARD_HIGHPWR) { |
| if ((cck_agc_rpt>>7) == 0) { |
| PWDB_ALL = (PWDB_ALL > 94) ? 100 : (PWDB_ALL+6); |
| } else { |
| if (PWDB_ALL > 38) |
| PWDB_ALL -= 16; |
| else |
| PWDB_ALL = (PWDB_ALL <= 16) ? (PWDB_ALL>>2) : (PWDB_ALL-12); |
| } |
| |
| /* CCK modification */ |
| if (PWDB_ALL > 25 && PWDB_ALL <= 60) |
| PWDB_ALL += 6; |
| } else { /* Modification for int-LNA board */ |
| if (PWDB_ALL > 99) |
| PWDB_ALL -= 8; |
| else if (PWDB_ALL > 50 && PWDB_ALL <= 68) |
| PWDB_ALL += 4; |
| } |
| pPhyInfo->RxPWDBAll = PWDB_ALL; |
| pPhyInfo->BTRxRSSIPercentage = PWDB_ALL; |
| pPhyInfo->RecvSignalPower = rx_pwr_all; |
| /* (3) Get Signal Quality (EVM) */ |
| if (pPktinfo->bPacketMatchBSSID) { |
| u8 SQ, SQ_rpt; |
| |
| SQ_rpt = pPhyStaRpt->cck_sig_qual_ofdm_pwdb_all; |
| |
| if (SQ_rpt > 64) |
| SQ = 0; |
| else if (SQ_rpt < 20) |
| SQ = 100; |
| else |
| SQ = ((64-SQ_rpt) * 100) / 44; |
| |
| pPhyInfo->SignalQuality = SQ; |
| pPhyInfo->RxMIMOSignalQuality[RF_PATH_A] = SQ; |
| pPhyInfo->RxMIMOSignalQuality[RF_PATH_B] = -1; |
| } |
| } else { /* is OFDM rate */ |
| pDM_Odm->PhyDbgInfo.NumQryPhyStatusOFDM++; |
| |
| /* (1)Get RSSI for HT rate */ |
| |
| for (i = RF_PATH_A; i < RF_PATH_MAX; i++) { |
| /* 2008/01/30 MH we will judge RF RX path now. */ |
| if (pDM_Odm->RFPathRxEnable & BIT(i)) |
| rf_rx_num++; |
| |
| rx_pwr[i] = ((pPhyStaRpt->path_agc[i].gain & 0x3F)*2) - 110; |
| |
| pPhyInfo->RxPwr[i] = rx_pwr[i]; |
| |
| /* Translate DBM to percentage. */ |
| RSSI = odm_QueryRxPwrPercentage(rx_pwr[i]); |
| total_rssi += RSSI; |
| |
| /* Modification for ext-LNA board */ |
| if (pDM_Odm->BoardType == ODM_BOARD_HIGHPWR) { |
| if ((pPhyStaRpt->path_agc[i].trsw) == 1) |
| RSSI = (RSSI > 94) ? 100 : (RSSI+6); |
| else |
| RSSI = (RSSI <= 16) ? (RSSI>>3) : (RSSI-16); |
| |
| if ((RSSI <= 34) && (RSSI >= 4)) |
| RSSI -= 4; |
| } |
| |
| pPhyInfo->RxMIMOSignalStrength[i] = (u8) RSSI; |
| |
| /* Get Rx snr value in DB */ |
| pPhyInfo->RxSNR[i] = pDM_Odm->PhyDbgInfo.RxSNRdB[i] = (s32)(pPhyStaRpt->path_rxsnr[i]/2); |
| } |
| |
| /* (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive) */ |
| rx_pwr_all = (((pPhyStaRpt->cck_sig_qual_ofdm_pwdb_all) >> 1) & 0x7f)-110; |
| |
| PWDB_ALL = odm_QueryRxPwrPercentage(rx_pwr_all); |
| PWDB_ALL_BT = PWDB_ALL; |
| |
| pPhyInfo->RxPWDBAll = PWDB_ALL; |
| pPhyInfo->BTRxRSSIPercentage = PWDB_ALL_BT; |
| pPhyInfo->RxPower = rx_pwr_all; |
| pPhyInfo->RecvSignalPower = rx_pwr_all; |
| |
| /* (3)EVM of HT rate */ |
| if (pPktinfo->Rate >= DESC92C_RATEMCS8 && pPktinfo->Rate <= DESC92C_RATEMCS15) |
| Max_spatial_stream = 2; /* both spatial stream make sense */ |
| else |
| Max_spatial_stream = 1; /* only spatial stream 1 makes sense */ |
| |
| for (i = 0; i < Max_spatial_stream; i++) { |
| /* Do not use shift operation like "rx_evmX >>= 1" because the compilor of free build environment */ |
| /* fill most significant bit to "zero" when doing shifting operation which may change a negative */ |
| /* value to positive one, then the dbm value (which is supposed to be negative) is not correct anymore. */ |
| EVM = odm_EVMdbToPercentage((pPhyStaRpt->stream_rxevm[i])); /* dbm */ |
| |
| if (pPktinfo->bPacketMatchBSSID) { |
| if (i == RF_PATH_A) { |
| /* Fill value in RFD, Get the first spatial stream only */ |
| pPhyInfo->SignalQuality = (u8)(EVM & 0xff); |
| } |
| pPhyInfo->RxMIMOSignalQuality[i] = (u8)(EVM & 0xff); |
| } |
| } |
| } |
| /* UI BSS List signal strength(in percentage), make it good looking, from 0~100. */ |
| /* It is assigned to the BSS List in GetValueFromBeaconOrProbeRsp(). */ |
| if (isCCKrate) { |
| pPhyInfo->SignalStrength = (u8)(odm_SignalScaleMapping(pDM_Odm, PWDB_ALL));/* PWDB_ALL; */ |
| } else { |
| if (rf_rx_num != 0) |
| pPhyInfo->SignalStrength = (u8)(odm_SignalScaleMapping(pDM_Odm, total_rssi /= rf_rx_num)); |
| } |
| } |
| |
| void odm_Init_RSSIForDM23a(struct dm_odm_t *pDM_Odm) |
| { |
| } |
| |
| static void odm_Process_RSSIForDM(struct dm_odm_t *pDM_Odm, |
| struct phy_info *pPhyInfo, |
| struct odm_packet_info *pPktinfo) |
| { |
| s32 UndecoratedSmoothedPWDB, UndecoratedSmoothedCCK; |
| s32 UndecoratedSmoothedOFDM, RSSI_Ave; |
| u8 isCCKrate = 0; |
| u8 RSSI_max, RSSI_min, i; |
| u32 OFDM_pkt = 0; |
| u32 Weighting = 0; |
| struct sta_info *pEntry; |
| |
| if (pPktinfo->StationID == 0xFF) |
| return; |
| |
| pEntry = pDM_Odm->pODM_StaInfo[pPktinfo->StationID]; |
| if (!pEntry) |
| return; |
| if ((!pPktinfo->bPacketMatchBSSID)) |
| return; |
| |
| isCCKrate = (pPktinfo->Rate <= DESC92C_RATE11M) ? true : false; |
| |
| /* Smart Antenna Debug Message------------------*/ |
| |
| UndecoratedSmoothedCCK = pEntry->rssi_stat.UndecoratedSmoothedCCK; |
| UndecoratedSmoothedOFDM = pEntry->rssi_stat.UndecoratedSmoothedOFDM; |
| UndecoratedSmoothedPWDB = pEntry->rssi_stat.UndecoratedSmoothedPWDB; |
| |
| if (pPktinfo->bPacketToSelf || pPktinfo->bPacketBeacon) { |
| if (!isCCKrate) { /* ofdm rate */ |
| if (pPhyInfo->RxMIMOSignalStrength[RF_PATH_B] == 0) { |
| RSSI_Ave = pPhyInfo->RxMIMOSignalStrength[RF_PATH_A]; |
| } else { |
| if (pPhyInfo->RxMIMOSignalStrength[RF_PATH_A] > pPhyInfo->RxMIMOSignalStrength[RF_PATH_B]) { |
| RSSI_max = pPhyInfo->RxMIMOSignalStrength[RF_PATH_A]; |
| RSSI_min = pPhyInfo->RxMIMOSignalStrength[RF_PATH_B]; |
| } else { |
| RSSI_max = pPhyInfo->RxMIMOSignalStrength[RF_PATH_B]; |
| RSSI_min = pPhyInfo->RxMIMOSignalStrength[RF_PATH_A]; |
| } |
| if ((RSSI_max - RSSI_min) < 3) |
| RSSI_Ave = RSSI_max; |
| else if ((RSSI_max - RSSI_min) < 6) |
| RSSI_Ave = RSSI_max - 1; |
| else if ((RSSI_max - RSSI_min) < 10) |
| RSSI_Ave = RSSI_max - 2; |
| else |
| RSSI_Ave = RSSI_max - 3; |
| } |
| |
| /* 1 Process OFDM RSSI */ |
| if (UndecoratedSmoothedOFDM <= 0) { |
| /* initialize */ |
| UndecoratedSmoothedOFDM = pPhyInfo->RxPWDBAll; |
| } else { |
| if (pPhyInfo->RxPWDBAll > (u32)UndecoratedSmoothedOFDM) { |
| UndecoratedSmoothedOFDM = |
| (((UndecoratedSmoothedOFDM)*(Rx_Smooth_Factor-1)) + |
| (RSSI_Ave)) / (Rx_Smooth_Factor); |
| UndecoratedSmoothedOFDM = UndecoratedSmoothedOFDM + 1; |
| } else { |
| UndecoratedSmoothedOFDM = |
| (((UndecoratedSmoothedOFDM)*(Rx_Smooth_Factor-1)) + |
| (RSSI_Ave)) / (Rx_Smooth_Factor); |
| } |
| } |
| pEntry->rssi_stat.PacketMap = |
| (pEntry->rssi_stat.PacketMap<<1) | BIT(0); |
| } else { |
| RSSI_Ave = pPhyInfo->RxPWDBAll; |
| |
| /* 1 Process CCK RSSI */ |
| if (UndecoratedSmoothedCCK <= 0) { |
| /* initialize */ |
| UndecoratedSmoothedCCK = pPhyInfo->RxPWDBAll; |
| } else { |
| if (pPhyInfo->RxPWDBAll > (u32)UndecoratedSmoothedCCK) { |
| UndecoratedSmoothedCCK = |
| (((UndecoratedSmoothedCCK)*(Rx_Smooth_Factor-1)) + |
| (pPhyInfo->RxPWDBAll)) / (Rx_Smooth_Factor); |
| UndecoratedSmoothedCCK = UndecoratedSmoothedCCK + 1; |
| } else { |
| UndecoratedSmoothedCCK = |
| (((UndecoratedSmoothedCCK)*(Rx_Smooth_Factor-1)) + |
| (pPhyInfo->RxPWDBAll)) / (Rx_Smooth_Factor); |
| } |
| } |
| pEntry->rssi_stat.PacketMap = pEntry->rssi_stat.PacketMap<<1; |
| } |
| |
| /* 2011.07.28 LukeLee: modified to prevent unstable CCK RSSI */ |
| if (pEntry->rssi_stat.ValidBit >= 64) |
| pEntry->rssi_stat.ValidBit = 64; |
| else |
| pEntry->rssi_stat.ValidBit++; |
| |
| for (i = 0; i < pEntry->rssi_stat.ValidBit; i++) |
| OFDM_pkt += |
| (u8)(pEntry->rssi_stat.PacketMap>>i) & BIT(0); |
| |
| if (pEntry->rssi_stat.ValidBit == 64) { |
| Weighting = ((OFDM_pkt<<4) > 64)?64:(OFDM_pkt<<4); |
| UndecoratedSmoothedPWDB = (Weighting*UndecoratedSmoothedOFDM+(64-Weighting)*UndecoratedSmoothedCCK)>>6; |
| } else { |
| if (pEntry->rssi_stat.ValidBit != 0) |
| UndecoratedSmoothedPWDB = (OFDM_pkt*UndecoratedSmoothedOFDM+(pEntry->rssi_stat.ValidBit-OFDM_pkt)*UndecoratedSmoothedCCK)/pEntry->rssi_stat.ValidBit; |
| else |
| UndecoratedSmoothedPWDB = 0; |
| } |
| pEntry->rssi_stat.UndecoratedSmoothedCCK = UndecoratedSmoothedCCK; |
| pEntry->rssi_stat.UndecoratedSmoothedOFDM = UndecoratedSmoothedOFDM; |
| pEntry->rssi_stat.UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB; |
| } |
| } |
| |
| void ODM_PhyStatusQuery23a(struct dm_odm_t *pDM_Odm, struct phy_info *pPhyInfo, |
| u8 *pPhyStatus, struct odm_packet_info *pPktinfo) |
| { |
| odm_RxPhyStatus92CSeries_Parsing(pDM_Odm, pPhyInfo, |
| pPhyStatus, pPktinfo); |
| |
| odm_Process_RSSIForDM(pDM_Odm, pPhyInfo, pPktinfo); |
| } |