drivers/staging/rtl8188eu/hal/odm_HWConfig.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /******************************************************************************
   3  *
   4  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   5  *
   6  ******************************************************************************/
   7
   8 /*  include files */
   9
  10 #include "odm_precomp.h"
  11
  12 #define READ_AND_CONFIG     READ_AND_CONFIG_MP
  13
  14 #define READ_AND_CONFIG_MP(ic, txt) (ODM_ReadAndConfig##txt##ic(dm_odm))
  15 #define READ_AND_CONFIG_TC(ic, txt) (ODM_ReadAndConfig_TC##txt##ic(dm_odm))
  16
  17 static u8 odm_QueryRxPwrPercentage(s8 AntPower)
  18 {
  19         if ((AntPower <= -100) || (AntPower >= 20))
  20                 return  0;
  21         else if (AntPower >= 0)
  22                 return  100;
  23         else
  24                 return 100+AntPower;
  25 }
  26
  27 /*  2012/01/12 MH MOve some signal strength smooth method to MP HAL layer. */
  28 /*  IF other SW team do not support the feature, remove this section.?? */
  29 static s32 odm_SignalScaleMapping_92CSeries(struct odm_dm_struct *dm_odm, s32 CurrSig)
  30 {
  31         s32 RetSig = 0;
  32
  33         if (CurrSig >= 51 && CurrSig <= 100)
  34                 RetSig = 100;
  35         else if (CurrSig >= 41 && CurrSig <= 50)
  36                 RetSig = 80 + ((CurrSig - 40)*2);
  37         else if (CurrSig >= 31 && CurrSig <= 40)
  38                 RetSig = 66 + (CurrSig - 30);
  39         else if (CurrSig >= 21 && CurrSig <= 30)
  40                 RetSig = 54 + (CurrSig - 20);
  41         else if (CurrSig >= 10 && CurrSig <= 20)
  42                 RetSig = 42 + (((CurrSig - 10) * 2) / 3);
  43         else if (CurrSig >= 5 && CurrSig <= 9)
  44                 RetSig = 22 + (((CurrSig - 5) * 3) / 2);
  45         else if (CurrSig >= 1 && CurrSig <= 4)
  46                 RetSig = 6 + (((CurrSig - 1) * 3) / 2);
  47         else
  48                 RetSig = CurrSig;
  49         return RetSig;
  50 }
  51
  52 static s32 odm_SignalScaleMapping(struct odm_dm_struct *dm_odm, s32 CurrSig)
  53 {
  54         return odm_SignalScaleMapping_92CSeries(dm_odm, CurrSig);
  55 }
  56
  57 static u8 odm_EVMdbToPercentage(s8 Value)
  58 {
  59         /*  -33dB~0dB to 0%~99% */
  60         s8 ret_val;
  61
  62         ret_val = Value;
  63
  64         if (ret_val >= 0)
  65                 ret_val = 0;
  66         if (ret_val <= -33)
  67                 ret_val = -33;
  68
  69         ret_val = 0 - ret_val;
  70         ret_val *= 3;
  71
  72         if (ret_val == 99)
  73                 ret_val = 100;
  74         return ret_val;
  75 }
  76
  77 static void odm_RxPhyStatus92CSeries_Parsing(struct odm_dm_struct *dm_odm,
  78                         struct odm_phy_status_info *pPhyInfo,
  79                         u8 *pPhyStatus,
  80                         struct odm_per_pkt_info *pPktinfo)
  81 {
  82         struct sw_ant_switch *pDM_SWAT_Table = &dm_odm->DM_SWAT_Table;
  83         u8 i, Max_spatial_stream;
  84         s8 rx_pwr[4], rx_pwr_all = 0;
  85         u8 EVM, PWDB_ALL = 0, PWDB_ALL_BT;
  86         u8 RSSI, total_rssi = 0;
  87         u8 isCCKrate = 0;
  88         u8 rf_rx_num = 0;
  89         u8 cck_highpwr = 0;
  90         u8 LNA_idx, VGA_idx;
  91
  92         struct phy_status_rpt *pPhyStaRpt = (struct phy_status_rpt *)pPhyStatus;
  93
  94         isCCKrate = ((pPktinfo->Rate >= DESC92C_RATE1M) && (pPktinfo->Rate <= DESC92C_RATE11M)) ? true : false;
  95
  96         pPhyInfo->RxMIMOSignalQuality[RF_PATH_A] = -1;
  97         pPhyInfo->RxMIMOSignalQuality[RF_PATH_B] = -1;
  98
  99         if (isCCKrate) {
 100                 u8 cck_agc_rpt;
 101
 102                 dm_odm->PhyDbgInfo.NumQryPhyStatusCCK++;
 103                 /*  (1)Hardware does not provide RSSI for CCK */
 104                 /*  (2)PWDB, Average PWDB calculated by hardware (for rate adaptive) */
 105
 106                 cck_highpwr = dm_odm->bCckHighPower;
 107
 108                 cck_agc_rpt =  pPhyStaRpt->cck_agc_rpt_ofdm_cfosho_a;
 109
 110                 /* 2011.11.28 LukeLee: 88E use different LNA & VGA gain table */
 111                 /* The RSSI formula should be modified according to the gain table */
 112                 /* In 88E, cck_highpwr is always set to 1 */
 113                 LNA_idx = (cck_agc_rpt & 0xE0) >> 5;
 114                 VGA_idx = cck_agc_rpt & 0x1F;
 115                 switch (LNA_idx) {
 116                 case 7:
 117                         if (VGA_idx <= 27)
 118                                 rx_pwr_all = -100 + 2*(27-VGA_idx); /* VGA_idx = 27~2 */
 119                         else
 120                                 rx_pwr_all = -100;
 121                         break;
 122                 case 6:
 123                         rx_pwr_all = -48 + 2*(2-VGA_idx); /* VGA_idx = 2~0 */
 124                         break;
 125                 case 5:
 126                         rx_pwr_all = -42 + 2*(7-VGA_idx); /* VGA_idx = 7~5 */
 127                         break;
 128                 case 4:
 129                         rx_pwr_all = -36 + 2*(7-VGA_idx); /* VGA_idx = 7~4 */
 130                         break;
 131                 case 3:
 132                         rx_pwr_all = -24 + 2*(7-VGA_idx); /* VGA_idx = 7~0 */
 133                         break;
 134                 case 2:
 135                         if (cck_highpwr)
 136                                 rx_pwr_all = -12 + 2*(5-VGA_idx); /* VGA_idx = 5~0 */
 137                         else
 138                                 rx_pwr_all = -6 + 2*(5-VGA_idx);
 139                         break;
 140                 case 1:
 141                         rx_pwr_all = 8-2*VGA_idx;
 142                         break;
 143                 case 0:
 144                         rx_pwr_all = 14-2*VGA_idx;
 145                         break;
 146                 default:
 147                         break;
 148                 }
 149                 rx_pwr_all += 6;
 150                 PWDB_ALL = odm_QueryRxPwrPercentage(rx_pwr_all);
 151                 if (!cck_highpwr) {
 152                         if (PWDB_ALL >= 80)
 153                                 PWDB_ALL = ((PWDB_ALL-80)<<1)+((PWDB_ALL-80)>>1)+80;
 154                         else if ((PWDB_ALL <= 78) && (PWDB_ALL >= 20))
 155                                 PWDB_ALL += 3;
 156                         if (PWDB_ALL > 100)
 157                                 PWDB_ALL = 100;
 158                 }
 159
 160                 pPhyInfo->RxPWDBAll = PWDB_ALL;
 161                 pPhyInfo->BTRxRSSIPercentage = PWDB_ALL;
 162                 pPhyInfo->RecvSignalPower = rx_pwr_all;
 163                 /*  (3) Get Signal Quality (EVM) */
 164                 if (pPktinfo->bPacketMatchBSSID) {
 165                         u8 SQ, SQ_rpt;
 166
 167                         if (pPhyInfo->RxPWDBAll > 40 && !dm_odm->bInHctTest) {
 168                                 SQ = 100;
 169                         } else {
 170                                 SQ_rpt = pPhyStaRpt->cck_sig_qual_ofdm_pwdb_all;
 171
 172                                 if (SQ_rpt > 64)
 173                                         SQ = 0;
 174                                 else if (SQ_rpt < 20)
 175                                         SQ = 100;
 176                                 else
 177                                         SQ = ((64-SQ_rpt) * 100) / 44;
 178                         }
 179                         pPhyInfo->SignalQuality = SQ;
 180                         pPhyInfo->RxMIMOSignalQuality[RF_PATH_A] = SQ;
 181                         pPhyInfo->RxMIMOSignalQuality[RF_PATH_B] = -1;
 182                 }
 183         } else { /* is OFDM rate */
 184                 dm_odm->PhyDbgInfo.NumQryPhyStatusOFDM++;
 185
 186                 /*  (1)Get RSSI for HT rate */
 187
 188                  for (i = RF_PATH_A; i < RF_PATH_MAX; i++) {
 189                         /*  2008/01/30 MH we will judge RF RX path now. */
 190                         if (dm_odm->RFPathRxEnable & BIT(i))
 191                                 rf_rx_num++;
 192
 193                         rx_pwr[i] = ((pPhyStaRpt->path_agc[i].gain & 0x3F)*2) - 110;
 194
 195                         pPhyInfo->RxPwr[i] = rx_pwr[i];
 196
 197                         /* Translate DBM to percentage. */
 198                         RSSI = odm_QueryRxPwrPercentage(rx_pwr[i]);
 199                         total_rssi += RSSI;
 200
 201                         /* Modification for ext-LNA board */
 202                         if (dm_odm->BoardType == ODM_BOARD_HIGHPWR) {
 203                                 if ((pPhyStaRpt->path_agc[i].trsw) == 1)
 204                                         RSSI = (RSSI > 94) ? 100 : (RSSI + 6);
 205                                 else
 206                                         RSSI = (RSSI <= 16) ? (RSSI >> 3) : (RSSI - 16);
 207
 208                                 if ((RSSI <= 34) && (RSSI >= 4))
 209                                         RSSI -= 4;
 210                         }
 211
 212                         pPhyInfo->RxMIMOSignalStrength[i] = (u8)RSSI;
 213
 214                         /* Get Rx snr value in DB */
 215                         pPhyInfo->RxSNR[i] = (s32)(pPhyStaRpt->path_rxsnr[i]/2);
 216                         dm_odm->PhyDbgInfo.RxSNRdB[i] = (s32)(pPhyStaRpt->path_rxsnr[i]/2);
 217                 }
 218                 /*  (2)PWDB, Average PWDB calculated by hardware (for rate adaptive) */
 219                 rx_pwr_all = (((pPhyStaRpt->cck_sig_qual_ofdm_pwdb_all) >> 1) & 0x7f) - 110;
 220
 221                 PWDB_ALL = odm_QueryRxPwrPercentage(rx_pwr_all);
 222                 PWDB_ALL_BT = PWDB_ALL;
 223
 224                 pPhyInfo->RxPWDBAll = PWDB_ALL;
 225                 pPhyInfo->BTRxRSSIPercentage = PWDB_ALL_BT;
 226                 pPhyInfo->RxPower = rx_pwr_all;
 227                 pPhyInfo->RecvSignalPower = rx_pwr_all;
 228
 229                 /*  (3)EVM of HT rate */
 230                 if (pPktinfo->Rate >= DESC92C_RATEMCS8 && pPktinfo->Rate <= DESC92C_RATEMCS15)
 231                         Max_spatial_stream = 2; /* both spatial stream make sense */
 232                 else
 233                         Max_spatial_stream = 1; /* only spatial stream 1 makes sense */
 234
 235                 for (i = 0; i < Max_spatial_stream; i++) {
 236                         /*  Do not use shift operation like "rx_evmX >>= 1" because the compilor of free build environment */
 237                         /*  fill most significant bit to "zero" when doing shifting operation which may change a negative */
 238                         /*  value to positive one, then the dbm value (which is supposed to be negative)  is not correct anymore. */
 239                         EVM = odm_EVMdbToPercentage((pPhyStaRpt->stream_rxevm[i]));     /* dbm */
 240
 241                         if (pPktinfo->bPacketMatchBSSID) {
 242                                 if (i == RF_PATH_A) /*  Fill value in RFD, Get the first spatial stream only */
 243                                         pPhyInfo->SignalQuality = (u8)(EVM & 0xff);
 244                                 pPhyInfo->RxMIMOSignalQuality[i] = (u8)(EVM & 0xff);
 245                         }
 246                 }
 247         }
 248         /* UI BSS List signal strength(in percentage), make it good looking, from 0~100. */
 249         /* It is assigned to the BSS List in GetValueFromBeaconOrProbeRsp(). */
 250         if (isCCKrate) {
 251                 pPhyInfo->SignalStrength = (u8)(odm_SignalScaleMapping(dm_odm, PWDB_ALL));/* PWDB_ALL; */
 252         } else {
 253                 if (rf_rx_num != 0)
 254                         pPhyInfo->SignalStrength = (u8)(odm_SignalScaleMapping(dm_odm, total_rssi /= rf_rx_num));
 255         }
 256
 257         /* For 92C/92D HW (Hybrid) Antenna Diversity */
 258         pDM_SWAT_Table->antsel = pPhyStaRpt->ant_sel;
 259         /* For 88E HW Antenna Diversity */
 260         dm_odm->DM_FatTable.antsel_rx_keep_0 = pPhyStaRpt->ant_sel;
 261         dm_odm->DM_FatTable.antsel_rx_keep_1 = pPhyStaRpt->ant_sel_b;
 262         dm_odm->DM_FatTable.antsel_rx_keep_2 = pPhyStaRpt->antsel_rx_keep_2;
 263 }
 264
 265 static void odm_Process_RSSIForDM(struct odm_dm_struct *dm_odm,
 266                                   struct odm_phy_status_info *pPhyInfo,
 267                                   struct odm_per_pkt_info *pPktinfo)
 268 {
 269         s32 UndecoratedSmoothedPWDB, UndecoratedSmoothedCCK;
 270         s32 UndecoratedSmoothedOFDM, RSSI_Ave;
 271         u8 isCCKrate = 0;
 272         u8 RSSI_max, RSSI_min, i;
 273         u32 OFDM_pkt = 0;
 274         u32 Weighting = 0;
 275         struct sta_info *pEntry;
 276         u8 antsel_tr_mux;
 277         struct fast_ant_train *pDM_FatTable = &dm_odm->DM_FatTable;
 278
 279         if (pPktinfo->StationID == 0xFF)
 280                 return;
 281         pEntry = dm_odm->pODM_StaInfo[pPktinfo->StationID];
 282         if (!IS_STA_VALID(pEntry))
 283                 return;
 284         if ((!pPktinfo->bPacketMatchBSSID))
 285                 return;
 286
 287         isCCKrate = ((pPktinfo->Rate >= DESC92C_RATE1M) && (pPktinfo->Rate <= DESC92C_RATE11M)) ? true : false;
 288
 289         /* Smart Antenna Debug Message------------------  */
 290
 291         if (dm_odm->AntDivType == CG_TRX_SMART_ANTDIV) {
 292                 if (pDM_FatTable->FAT_State == FAT_TRAINING_STATE) {
 293                         if (pPktinfo->bPacketToSelf) {
 294                                 antsel_tr_mux = (pDM_FatTable->antsel_rx_keep_2<<2) |
 295                                                 (pDM_FatTable->antsel_rx_keep_1<<1) |
 296                                                 pDM_FatTable->antsel_rx_keep_0;
 297                                 pDM_FatTable->antSumRSSI[antsel_tr_mux] += pPhyInfo->RxPWDBAll;
 298                                 pDM_FatTable->antRSSIcnt[antsel_tr_mux]++;
 299                         }
 300                 }
 301         } else if ((dm_odm->AntDivType == CG_TRX_HW_ANTDIV) || (dm_odm->AntDivType == CGCS_RX_HW_ANTDIV)) {
 302                 if (pPktinfo->bPacketToSelf || pPktinfo->bPacketBeacon) {
 303                         antsel_tr_mux = (pDM_FatTable->antsel_rx_keep_2<<2) |
 304                                         (pDM_FatTable->antsel_rx_keep_1<<1) | pDM_FatTable->antsel_rx_keep_0;
 305                         rtl88eu_dm_ant_sel_statistics(dm_odm, antsel_tr_mux, pPktinfo->StationID, pPhyInfo->RxPWDBAll);
 306                 }
 307         }
 308         /* Smart Antenna Debug Message------------------ */
 309
 310         UndecoratedSmoothedCCK =  pEntry->rssi_stat.UndecoratedSmoothedCCK;
 311         UndecoratedSmoothedOFDM = pEntry->rssi_stat.UndecoratedSmoothedOFDM;
 312         UndecoratedSmoothedPWDB = pEntry->rssi_stat.UndecoratedSmoothedPWDB;
 313
 314         if (pPktinfo->bPacketToSelf || pPktinfo->bPacketBeacon) {
 315                 if (!isCCKrate) { /* ofdm rate */
 316                         if (pPhyInfo->RxMIMOSignalStrength[RF_PATH_B] == 0) {
 317                                 RSSI_Ave = pPhyInfo->RxMIMOSignalStrength[RF_PATH_A];
 318                         } else {
 319                                 if (pPhyInfo->RxMIMOSignalStrength[RF_PATH_A] > pPhyInfo->RxMIMOSignalStrength[RF_PATH_B]) {
 320                                         RSSI_max = pPhyInfo->RxMIMOSignalStrength[RF_PATH_A];
 321                                         RSSI_min = pPhyInfo->RxMIMOSignalStrength[RF_PATH_B];
 322                                 } else {
 323                                         RSSI_max = pPhyInfo->RxMIMOSignalStrength[RF_PATH_B];
 324                                         RSSI_min = pPhyInfo->RxMIMOSignalStrength[RF_PATH_A];
 325                                 }
 326                                 if ((RSSI_max - RSSI_min) < 3)
 327                                         RSSI_Ave = RSSI_max;
 328                                 else if ((RSSI_max - RSSI_min) < 6)
 329                                         RSSI_Ave = RSSI_max - 1;
 330                                 else if ((RSSI_max - RSSI_min) < 10)
 331                                         RSSI_Ave = RSSI_max - 2;
 332                                 else
 333                                         RSSI_Ave = RSSI_max - 3;
 334                         }
 335
 336                         /* 1 Process OFDM RSSI */
 337                         if (UndecoratedSmoothedOFDM <= 0) {     /*  initialize */
 338                                 UndecoratedSmoothedOFDM = pPhyInfo->RxPWDBAll;
 339                         } else {
 340                                 if (pPhyInfo->RxPWDBAll > (u32)UndecoratedSmoothedOFDM) {
 341                                         UndecoratedSmoothedOFDM =
 342                                                         (((UndecoratedSmoothedOFDM)*(Rx_Smooth_Factor-1)) +
 343                                                         (RSSI_Ave)) / (Rx_Smooth_Factor);
 344                                         UndecoratedSmoothedOFDM = UndecoratedSmoothedOFDM + 1;
 345                                 } else {
 346                                         UndecoratedSmoothedOFDM =
 347                                                         (((UndecoratedSmoothedOFDM)*(Rx_Smooth_Factor-1)) +
 348                                                         (RSSI_Ave)) / (Rx_Smooth_Factor);
 349                                 }
 350                         }
 351
 352                         pEntry->rssi_stat.PacketMap = (pEntry->rssi_stat.PacketMap<<1) | BIT(0);
 353
 354                 } else {
 355                         RSSI_Ave = pPhyInfo->RxPWDBAll;
 356
 357                         /* 1 Process CCK RSSI */
 358                         if (UndecoratedSmoothedCCK <= 0) {      /*  initialize */
 359                                 UndecoratedSmoothedCCK = pPhyInfo->RxPWDBAll;
 360                         } else {
 361                                 if (pPhyInfo->RxPWDBAll > (u32)UndecoratedSmoothedCCK) {
 362                                         UndecoratedSmoothedCCK =
 363                                                         ((UndecoratedSmoothedCCK * (Rx_Smooth_Factor-1)) +
 364                                                         pPhyInfo->RxPWDBAll) / Rx_Smooth_Factor;
 365                                         UndecoratedSmoothedCCK = UndecoratedSmoothedCCK + 1;
 366                                 } else {
 367                                         UndecoratedSmoothedCCK =
 368                                                         ((UndecoratedSmoothedCCK * (Rx_Smooth_Factor-1)) +
 369                                                         pPhyInfo->RxPWDBAll) / Rx_Smooth_Factor;
 370                                 }
 371                         }
 372                         pEntry->rssi_stat.PacketMap = pEntry->rssi_stat.PacketMap<<1;
 373                 }
 374                 /* 2011.07.28 LukeLee: modified to prevent unstable CCK RSSI */
 375                 if (pEntry->rssi_stat.ValidBit >= 64)
 376                         pEntry->rssi_stat.ValidBit = 64;
 377                 else
 378                         pEntry->rssi_stat.ValidBit++;
 379
 380                 for (i = 0; i < pEntry->rssi_stat.ValidBit; i++)
 381                         OFDM_pkt += (u8)(pEntry->rssi_stat.PacketMap>>i) & BIT(0);
 382
 383                 if (pEntry->rssi_stat.ValidBit == 64) {
 384                         Weighting = min_t(u32, OFDM_pkt << 4, 64);
 385                         UndecoratedSmoothedPWDB = (Weighting*UndecoratedSmoothedOFDM+(64-Weighting)*UndecoratedSmoothedCCK)>>6;
 386                 } else {
 387                         if (pEntry->rssi_stat.ValidBit != 0)
 388                                 UndecoratedSmoothedPWDB = (OFDM_pkt * UndecoratedSmoothedOFDM +
 389                                                           (pEntry->rssi_stat.ValidBit-OFDM_pkt) *
 390                                                           UndecoratedSmoothedCCK)/pEntry->rssi_stat.ValidBit;
 391                         else
 392                                 UndecoratedSmoothedPWDB = 0;
 393                 }
 394                 pEntry->rssi_stat.UndecoratedSmoothedCCK = UndecoratedSmoothedCCK;
 395                 pEntry->rssi_stat.UndecoratedSmoothedOFDM = UndecoratedSmoothedOFDM;
 396                 pEntry->rssi_stat.UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;
 397         }
 398 }
 399
 400 /*  Endianness before calling this API */
 401 static void ODM_PhyStatusQuery_92CSeries(struct odm_dm_struct *dm_odm,
 402                                          struct odm_phy_status_info *pPhyInfo,
 403                                          u8 *pPhyStatus,
 404                                          struct odm_per_pkt_info *pPktinfo)
 405 {
 406         odm_RxPhyStatus92CSeries_Parsing(dm_odm, pPhyInfo, pPhyStatus,
 407                                          pPktinfo);
 408         if (dm_odm->RSSI_test) {
 409                 ;/*  Select the packets to do RSSI checking for antenna switching. */
 410         } else {
 411                 odm_Process_RSSIForDM(dm_odm, pPhyInfo, pPktinfo);
 412         }
 413 }
 414
 415 void ODM_PhyStatusQuery(struct odm_dm_struct *dm_odm,
 416                         struct odm_phy_status_info *pPhyInfo,
 417                         u8 *pPhyStatus, struct odm_per_pkt_info *pPktinfo)
 418 {
 419         ODM_PhyStatusQuery_92CSeries(dm_odm, pPhyInfo, pPhyStatus, pPktinfo);
 420 }