--- /dev/null
+/******************************************************************************
+ *
+ * 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);
+}
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