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// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2007 - 2011 Realtek Corporation. */
#include "../include/drv_types.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(struct odm_dm_struct *dm_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 u8 odm_evm_db_to_percentage(s8 value)
{
/* -33dB~0dB to 0%~99% */
s8 ret_val = clamp(-value, 0, 33) * 3;
if (ret_val == 99)
ret_val = 100;
return ret_val;
}
static void odm_RxPhyStatus92CSeries_Parsing(struct odm_dm_struct *dm_odm,
struct phy_info *pPhyInfo,
u8 *pPhyStatus,
struct odm_per_pkt_info *pPktinfo,
struct adapter *adapt)
{
u8 i, Max_spatial_stream;
s8 rx_pwr[4], rx_pwr_all = 0;
u8 EVM, PWDB_ALL = 0;
u8 RSSI, total_rssi = 0;
u8 isCCKrate = 0;
u8 rf_rx_num = 0;
u8 cck_highpwr = 0;
u8 LNA_idx, VGA_idx;
struct phy_status_rpt *pPhyStaRpt = (struct phy_status_rpt *)pPhyStatus;
isCCKrate = pPktinfo->Rate >= DESC92C_RATE1M && pPktinfo->Rate <= DESC92C_RATE11M;
if (isCCKrate) {
u8 cck_agc_rpt;
/* (1)Hardware does not provide RSSI for CCK */
/* (2)PWDB, Average PWDB calculated by hardware (for rate adaptive) */
cck_highpwr = dm_odm->bCckHighPower;
cck_agc_rpt = pPhyStaRpt->cck_agc_rpt_ofdm_cfosho_a;
/* 2011.11.28 LukeLee: 88E use different LNA & VGA gain table */
/* The RSSI formula should be modified according to the gain table */
/* In 88E, cck_highpwr is always set to 1 */
LNA_idx = ((cck_agc_rpt & 0xE0) >> 5);
VGA_idx = (cck_agc_rpt & 0x1F);
switch (LNA_idx) {
case 7:
if (VGA_idx <= 27)
rx_pwr_all = -100 + 2 * (27 - VGA_idx); /* VGA_idx = 27~2 */
else
rx_pwr_all = -100;
break;
case 6:
rx_pwr_all = -48 + 2 * (2 - VGA_idx); /* VGA_idx = 2~0 */
break;
case 5:
rx_pwr_all = -42 + 2 * (7 - VGA_idx); /* VGA_idx = 7~5 */
break;
case 4:
rx_pwr_all = -36 + 2 * (7 - VGA_idx); /* VGA_idx = 7~4 */
break;
case 3:
rx_pwr_all = -24 + 2 * (7 - VGA_idx); /* VGA_idx = 7~0 */
break;
case 2:
if (cck_highpwr)
rx_pwr_all = -12 + 2 * (5 - VGA_idx); /* VGA_idx = 5~0 */
else
rx_pwr_all = -6 + 2 * (5 - VGA_idx);
break;
case 1:
rx_pwr_all = 8 - 2 * VGA_idx;
break;
case 0:
rx_pwr_all = 14 - 2 * VGA_idx;
break;
default:
break;
}
rx_pwr_all += 6;
PWDB_ALL = odm_QueryRxPwrPercentage(rx_pwr_all);
if (!cck_highpwr) {
if (PWDB_ALL >= 80)
PWDB_ALL = ((PWDB_ALL - 80) << 1) + ((PWDB_ALL - 80) >> 1) + 80;
else if ((PWDB_ALL <= 78) && (PWDB_ALL >= 20))
PWDB_ALL += 3;
if (PWDB_ALL > 100)
PWDB_ALL = 100;
}
pPhyInfo->RxPWDBAll = PWDB_ALL;
pPhyInfo->recvpower = rx_pwr_all;
/* (3) Get Signal Quality (EVM) */
if (pPktinfo->bPacketMatchBSSID) {
u8 SQ, SQ_rpt;
if (pPhyInfo->RxPWDBAll > 40) {
SQ = 100;
} else {
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;
}
} else { /* is OFDM rate */
/* (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 (dm_odm->RFPathRxEnable & BIT(i))
rf_rx_num++;
rx_pwr[i] = ((pPhyStaRpt->path_agc[i].gain & 0x3F) * 2) - 110;
if (i == RF_PATH_A)
adapt->signal_strength = rx_pwr[i];
pPhyInfo->RxPwr[i] = rx_pwr[i];
/* Translate DBM to percentage. */
RSSI = odm_QueryRxPwrPercentage(rx_pwr[i]);
total_rssi += RSSI;
pPhyInfo->RxMIMOSignalStrength[i] = (u8)RSSI;
/* Get Rx snr value in DB */
dm_odm->PhyDbgInfo.RxSNRdB[i] = (s32)(pPhyStaRpt->path_rxsnr[i] / 2);
}
/* (2)PWDB, Average PWDB calculated 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);
pPhyInfo->RxPWDBAll = PWDB_ALL;
pPhyInfo->RxPower = rx_pwr_all;
pPhyInfo->recvpower = 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_evm_db_to_percentage((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);
}
}
}
/* 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(dm_odm, PWDB_ALL));/* PWDB_ALL; */
} else {
if (rf_rx_num != 0)
pPhyInfo->SignalStrength = (u8)(odm_SignalScaleMapping(dm_odm, total_rssi /= rf_rx_num));
}
/* For 88E HW Antenna Diversity */
dm_odm->DM_FatTable.antsel_rx_keep_0 = pPhyStaRpt->ant_sel;
dm_odm->DM_FatTable.antsel_rx_keep_1 = pPhyStaRpt->ant_sel_b;
dm_odm->DM_FatTable.antsel_rx_keep_2 = pPhyStaRpt->antsel_rx_keep_2;
}
static void odm_Process_RSSIForDM(struct odm_dm_struct *dm_odm,
struct phy_info *pPhyInfo,
struct odm_per_pkt_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;
u8 antsel_tr_mux;
struct fast_ant_train *pDM_FatTable = &dm_odm->DM_FatTable;
if (pPktinfo->StationID == 0xFF)
return;
pEntry = dm_odm->pODM_StaInfo[pPktinfo->StationID];
if (!IS_STA_VALID(pEntry))
return;
if ((!pPktinfo->bPacketMatchBSSID))
return;
isCCKrate = pPktinfo->Rate >= DESC92C_RATE1M && pPktinfo->Rate <= DESC92C_RATE11M;
/* Smart Antenna Debug Message------------------ */
if ((dm_odm->AntDivType == CG_TRX_HW_ANTDIV) || (dm_odm->AntDivType == CGCS_RX_HW_ANTDIV)) {
if (pPktinfo->bPacketToSelf || pPktinfo->bPacketBeacon) {
antsel_tr_mux = (pDM_FatTable->antsel_rx_keep_2 << 2) |
(pDM_FatTable->antsel_rx_keep_1 << 1) | pDM_FatTable->antsel_rx_keep_0;
ODM_AntselStatistics_88E(dm_odm, antsel_tr_mux, pPktinfo->StationID, pPhyInfo->RxPWDBAll);
}
}
/* 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;
}
}
/* Endianness before calling this API */
void ODM_PhyStatusQuery(struct odm_dm_struct *dm_odm,
struct phy_info *pPhyInfo,
u8 *pPhyStatus,
struct odm_per_pkt_info *pPktinfo,
struct adapter *adapt)
{
odm_RxPhyStatus92CSeries_Parsing(dm_odm, pPhyInfo, pPhyStatus, pPktinfo, adapt);
odm_Process_RSSIForDM(dm_odm, pPhyInfo, pPktinfo);
}
enum HAL_STATUS ODM_ConfigRFWithHeaderFile(struct odm_dm_struct *dm_odm)
{
return ODM_ReadAndConfig_RadioA_1T_8188E(dm_odm);
}
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