drivers/staging/rtl8192e/rtl819x_HTProc.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   4  *
   5  * Contact Information: wlanfae <[email protected]>
   6  */
   7 #include "rtllib.h"
   8 #include "rtl819x_HT.h"
   9 u8 MCS_FILTER_ALL[16] = {
  10         0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  11         0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  12 };
  13
  14 u8 MCS_FILTER_1SS[16] = {
  15         0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
  16         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  17 ;
  18
  19 u16 MCS_DATA_RATE[2][2][77] = {
  20         {{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234,
  21          260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416,
  22          468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182,
  23          182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156,
  24          181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273,
  25          312, 351, 312, 351, 390, 390, 429},
  26         {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
  27          43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520,
  28          578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231,
  29          173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260,
  30          231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390,
  31          433, 433, 477} },
  32         {{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486,
  33          540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648,
  34          864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324,
  35          378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324,
  36          378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648,
  37          729, 648, 729, 810, 810, 891},
  38         {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540,
  39          600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720,
  40          960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360,
  41          420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360,
  42          420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720,
  43          810, 720, 810, 900, 900, 990} }
  44 };
  45
  46 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
  47
  48 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
  49
  50 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
  51
  52 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
  53
  54 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
  55
  56 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
  57
  58 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
  59
  60 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
  61
  62 static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
  63
  64 static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
  65
  66 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
  67
  68 static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
  69
  70 void HTUpdateDefaultSetting(struct rtllib_device *ieee)
  71 {
  72         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
  73
  74         pHTInfo->bAcceptAddbaReq = 1;
  75
  76         pHTInfo->bRegShortGI20MHz = 1;
  77         pHTInfo->bRegShortGI40MHz = 1;
  78
  79         pHTInfo->bRegBW40MHz = 1;
  80
  81         if (pHTInfo->bRegBW40MHz)
  82                 pHTInfo->bRegSuppCCK = 1;
  83         else
  84                 pHTInfo->bRegSuppCCK = true;
  85
  86         pHTInfo->nAMSDU_MaxSize = 7935UL;
  87         pHTInfo->bAMSDU_Support = 0;
  88
  89         pHTInfo->bAMPDUEnable = 1;
  90         pHTInfo->AMPDU_Factor = 2;
  91         pHTInfo->MPDU_Density = 0;
  92
  93         pHTInfo->SelfMimoPs = 3;
  94         if (pHTInfo->SelfMimoPs == 2)
  95                 pHTInfo->SelfMimoPs = 3;
  96         ieee->bTxDisableRateFallBack = 0;
  97         ieee->bTxUseDriverAssingedRate = 0;
  98
  99         ieee->bTxEnableFwCalcDur = 1;
 100
 101         pHTInfo->bRegRT2RTAggregation = 1;
 102
 103         pHTInfo->bRegRxReorderEnable = 1;
 104         pHTInfo->RxReorderWinSize = 64;
 105         pHTInfo->RxReorderPendingTime = 30;
 106 }
 107
 108 static u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
 109 {
 110         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 111
 112         u8      is40MHz = (pHTInfo->bCurBW40MHz) ? 1 : 0;
 113         u8      isShortGI = (pHTInfo->bCurBW40MHz) ?
 114                             ((pHTInfo->bCurShortGI40MHz) ? 1 : 0) :
 115                             ((pHTInfo->bCurShortGI20MHz) ? 1 : 0);
 116         return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
 117 }
 118
 119 u16  TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
 120 {
 121         u16     CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
 122                                    0x24, 0x30, 0x48, 0x60, 0x6c};
 123         u8      is40MHz = 0;
 124         u8      isShortGI = 0;
 125
 126         if (nDataRate < 12)
 127                 return CCKOFDMRate[nDataRate];
 128         if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
 129                 is40MHz = 0;
 130                 isShortGI = 0;
 131         } else if (nDataRate >= 0x20  && nDataRate <= 0x2f) {
 132                 is40MHz = 1;
 133                 isShortGI = 0;
 134         } else if (nDataRate >= 0x30  && nDataRate <= 0x3f) {
 135                 is40MHz = 0;
 136                 isShortGI = 1;
 137         } else if (nDataRate >= 0x40  && nDataRate <= 0x4f) {
 138                 is40MHz = 1;
 139                 isShortGI = 1;
 140         }
 141         return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
 142 }
 143
 144 bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
 145 {
 146         bool                    retValue = false;
 147         struct rtllib_network *net = &ieee->current_network;
 148
 149         if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 150             (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 151             (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 152             (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 153             (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 154             (net->ralink_cap_exist))
 155                 retValue = true;
 156         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 157                 !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 158                 !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
 159                 (net->broadcom_cap_exist))
 160                 retValue = true;
 161         else if (net->bssht.bdRT2RTAggregation)
 162                 retValue = true;
 163         else
 164                 retValue = false;
 165
 166         return retValue;
 167 }
 168
 169 static void HTIOTPeerDetermine(struct rtllib_device *ieee)
 170 {
 171         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 172         struct rtllib_network *net = &ieee->current_network;
 173
 174         if (net->bssht.bdRT2RTAggregation) {
 175                 pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
 176                 if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_92SE)
 177                         pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK_92SE;
 178                 if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_SOFTAP)
 179                         pHTInfo->IOTPeer = HT_IOT_PEER_92U_SOFTAP;
 180         } else if (net->broadcom_cap_exist)
 181                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 182         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 183                  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 184                  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3))
 185                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 186         else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 187                  (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 188                  (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 189                  (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 190                  (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 191                   net->ralink_cap_exist)
 192                 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
 193         else if ((net->atheros_cap_exist) ||
 194                 (memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
 195                 (memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0))
 196                 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
 197         else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
 198                   net->cisco_cap_exist)
 199                 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
 200         else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
 201                   net->marvell_cap_exist)
 202                 pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL;
 203         else if (net->airgo_cap_exist)
 204                 pHTInfo->IOTPeer = HT_IOT_PEER_AIRGO;
 205         else
 206                 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 207
 208         netdev_dbg(ieee->dev, "IOTPEER: %x\n", pHTInfo->IOTPeer);
 209 }
 210
 211 static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
 212 {
 213         return 0;
 214 }
 215
 216
 217 static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
 218 {
 219         return false;
 220 }
 221
 222 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
 223 {
 224         return false;
 225 }
 226
 227 static u8 HTIOTActIsDisableEDCATurbo(struct rtllib_device *ieee,
 228                                      u8 *PeerMacAddr)
 229 {
 230         return false;
 231 }
 232
 233 static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
 234                                  struct rtllib_network *network)
 235 {
 236         u8      retValue = 0;
 237
 238
 239         if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
 240                 retValue = 1;
 241
 242         return retValue;
 243 }
 244
 245 static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
 246 {
 247         u8      retValue = 0;
 248
 249         if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
 250                 retValue = 1;
 251         return retValue;
 252 }
 253
 254 static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
 255 {
 256         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 257
 258         pHTInfo->IOTRaFunc &= HT_IOT_RAFUNC_DISABLE_ALL;
 259
 260         if (pHTInfo->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
 261                 pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_PEER_1R;
 262
 263         if (pHTInfo->IOTAction & HT_IOT_ACT_AMSDU_ENABLE)
 264                 pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_TX_AMSDU;
 265
 266 }
 267
 268 void HTResetIOTSetting(struct rt_hi_throughput *pHTInfo)
 269 {
 270         pHTInfo->IOTAction = 0;
 271         pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 272         pHTInfo->IOTRaFunc = 0;
 273 }
 274
 275 void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
 276                                   u8 *len, u8 IsEncrypt, bool bAssoc)
 277 {
 278         struct rt_hi_throughput *pHT = ieee->pHTInfo;
 279         struct ht_capab_ele *pCapELE = NULL;
 280
 281         if ((posHTCap == NULL) || (pHT == NULL)) {
 282                 netdev_warn(ieee->dev,
 283                             "%s(): posHTCap and pHTInfo are null\n", __func__);
 284                 return;
 285         }
 286         memset(posHTCap, 0, *len);
 287
 288         if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
 289                 u8      EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
 290
 291                 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
 292                 pCapELE = (struct ht_capab_ele *)&(posHTCap[4]);
 293                 *len = 30 + 2;
 294         } else {
 295                 pCapELE = (struct ht_capab_ele *)posHTCap;
 296                 *len = 26 + 2;
 297         }
 298
 299         pCapELE->AdvCoding              = 0;
 300         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 301                 pCapELE->ChlWidth = 0;
 302         else
 303                 pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
 304
 305         pCapELE->MimoPwrSave            = pHT->SelfMimoPs;
 306         pCapELE->GreenField             = 0;
 307         pCapELE->ShortGI20Mhz           = 1;
 308         pCapELE->ShortGI40Mhz           = 1;
 309
 310         pCapELE->TxSTBC                 = 1;
 311         pCapELE->RxSTBC                 = 0;
 312         pCapELE->DelayBA                = 0;
 313         pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
 314         pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
 315         pCapELE->PSMP = 0;
 316         pCapELE->LSigTxopProtect = 0;
 317
 318
 319         netdev_dbg(ieee->dev,
 320                    "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n",
 321                    pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
 322
 323         if (IsEncrypt) {
 324                 pCapELE->MPDUDensity    = 7;
 325                 pCapELE->MaxRxAMPDUFactor       = 2;
 326         } else {
 327                 pCapELE->MaxRxAMPDUFactor       = 3;
 328                 pCapELE->MPDUDensity    = 0;
 329         }
 330
 331         memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
 332         memset(&pCapELE->ExtHTCapInfo, 0, 2);
 333         memset(pCapELE->TxBFCap, 0, 4);
 334
 335         pCapELE->ASCap = 0;
 336
 337         if (bAssoc) {
 338                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
 339                         pCapELE->MCS[1] &= 0x7f;
 340
 341                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
 342                         pCapELE->MCS[1] &= 0xbf;
 343
 344                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
 345                         pCapELE->MCS[1] &= 0x00;
 346
 347                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
 348                         pCapELE->ShortGI40Mhz           = 0;
 349
 350                 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
 351                         pCapELE->ChlWidth = 0;
 352                         pCapELE->MCS[1] = 0;
 353                 }
 354         }
 355 }
 356
 357 void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
 358                             u8 *len, u8 IsEncrypt)
 359 {
 360         struct rt_hi_throughput *pHT = ieee->pHTInfo;
 361         struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
 362
 363         if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) {
 364                 netdev_warn(ieee->dev,
 365                             "%s(): posHTInfo and pHTInfoEle are null\n",
 366                             __func__);
 367                 return;
 368         }
 369
 370         memset(posHTInfo, 0, *len);
 371         if ((ieee->iw_mode == IW_MODE_ADHOC) ||
 372             (ieee->iw_mode == IW_MODE_MASTER)) {
 373                 pHTInfoEle->ControlChl  = ieee->current_network.channel;
 374                 pHTInfoEle->ExtChlOffset = ((!pHT->bRegBW40MHz) ?
 375                                             HT_EXTCHNL_OFFSET_NO_EXT :
 376                                             (ieee->current_network.channel <= 6)
 377                                             ? HT_EXTCHNL_OFFSET_UPPER :
 378                                             HT_EXTCHNL_OFFSET_LOWER);
 379                 pHTInfoEle->RecommemdedTxWidth  = pHT->bRegBW40MHz;
 380                 pHTInfoEle->RIFS                        = 0;
 381                 pHTInfoEle->PSMPAccessOnly              = 0;
 382                 pHTInfoEle->SrvIntGranularity           = 0;
 383                 pHTInfoEle->OptMode                     = pHT->CurrentOpMode;
 384                 pHTInfoEle->NonGFDevPresent             = 0;
 385                 pHTInfoEle->DualBeacon                  = 0;
 386                 pHTInfoEle->SecondaryBeacon             = 0;
 387                 pHTInfoEle->LSigTxopProtectFull         = 0;
 388                 pHTInfoEle->PcoActive                   = 0;
 389                 pHTInfoEle->PcoPhase                    = 0;
 390
 391                 memset(pHTInfoEle->BasicMSC, 0, 16);
 392
 393
 394                 *len = 22 + 2;
 395
 396         } else {
 397                 *len = 0;
 398         }
 399 }
 400
 401 void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
 402                                 u8 *len)
 403 {
 404         if (posRT2RTAgg == NULL) {
 405                 netdev_warn(ieee->dev, "%s(): posRT2RTAgg is null\n", __func__);
 406                 return;
 407         }
 408         memset(posRT2RTAgg, 0, *len);
 409         *posRT2RTAgg++ = 0x00;
 410         *posRT2RTAgg++ = 0xe0;
 411         *posRT2RTAgg++ = 0x4c;
 412         *posRT2RTAgg++ = 0x02;
 413         *posRT2RTAgg++ = 0x01;
 414
 415         *posRT2RTAgg = 0x30;
 416
 417         if (ieee->bSupportRemoteWakeUp)
 418                 *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
 419
 420         *len = 6 + 2;
 421 }
 422
 423 static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
 424 {
 425         u8 i;
 426
 427         if (pOperateMCS == NULL) {
 428                 netdev_warn(ieee->dev, "%s(): pOperateMCS is null\n", __func__);
 429                 return false;
 430         }
 431
 432         switch (ieee->mode) {
 433         case IEEE_A:
 434         case IEEE_B:
 435         case IEEE_G:
 436                 for (i = 0; i <= 15; i++)
 437                         pOperateMCS[i] = 0;
 438                 break;
 439         case IEEE_N_24G:
 440         case IEEE_N_5G:
 441                 pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
 442                 pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
 443                 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
 444                 break;
 445         default:
 446                 break;
 447
 448         }
 449
 450         return true;
 451 }
 452
 453 u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 454                        u8 *pMCSFilter)
 455 {
 456         u8              i, j;
 457         u8              bitMap;
 458         u8              mcsRate = 0;
 459         u8              availableMcsRate[16];
 460
 461         if (pMCSRateSet == NULL || pMCSFilter == NULL) {
 462                 netdev_warn(ieee->dev,
 463                             "%s(): pMCSRateSet and pMCSFilter are null\n",
 464                             __func__);
 465                 return false;
 466         }
 467         for (i = 0; i < 16; i++)
 468                 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
 469
 470         for (i = 0; i < 16; i++) {
 471                 if (availableMcsRate[i] != 0)
 472                         break;
 473         }
 474         if (i == 16)
 475                 return false;
 476
 477         for (i = 0; i < 16; i++) {
 478                 if (availableMcsRate[i] != 0) {
 479                         bitMap = availableMcsRate[i];
 480                         for (j = 0; j < 8; j++) {
 481                                 if ((bitMap%2) != 0) {
 482                                         if (HTMcsToDataRate(ieee, (8*i+j)) >
 483                                             HTMcsToDataRate(ieee, mcsRate))
 484                                                 mcsRate = 8 * i + j;
 485                                 }
 486                                 bitMap >>= 1;
 487                         }
 488                 }
 489         }
 490         return mcsRate | 0x80;
 491 }
 492
 493 static u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS,
 494                           u8 *pOperateMCS)
 495 {
 496
 497         u8 i;
 498
 499         for (i = 0; i <= 15; i++)
 500                 pOperateMCS[i] = ieee->Regdot11TxHTOperationalRateSet[i] &
 501                                  pSupportMCS[i];
 502
 503         HT_PickMCSRate(ieee, pOperateMCS);
 504
 505         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 506                 pOperateMCS[1] = 0;
 507
 508         for (i = 2; i <= 15; i++)
 509                 pOperateMCS[i] = 0;
 510
 511         return true;
 512 }
 513
 514 void HTSetConnectBwMode(struct rtllib_device *ieee,
 515                         enum ht_channel_width Bandwidth,
 516                         enum ht_extchnl_offset Offset);
 517
 518 void HTOnAssocRsp(struct rtllib_device *ieee)
 519 {
 520         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 521         struct ht_capab_ele *pPeerHTCap = NULL;
 522         struct ht_info_ele *pPeerHTInfo = NULL;
 523         u16 nMaxAMSDUSize = 0;
 524         u8 *pMcsFilter = NULL;
 525
 526         static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
 527         static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
 528
 529         if (!pHTInfo->bCurrentHTSupport) {
 530                 netdev_warn(ieee->dev, "%s(): HT_DISABLE\n", __func__);
 531                 return;
 532         }
 533         netdev_dbg(ieee->dev, "%s(): HT_ENABLE\n", __func__);
 534
 535         if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
 536                 pPeerHTCap = (struct ht_capab_ele *)(&pHTInfo->PeerHTCapBuf[4]);
 537         else
 538                 pPeerHTCap = (struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf);
 539
 540         if (!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
 541                 pPeerHTInfo = (struct ht_info_ele *)
 542                              (&pHTInfo->PeerHTInfoBuf[4]);
 543         else
 544                 pPeerHTInfo = (struct ht_info_ele *)(pHTInfo->PeerHTInfoBuf);
 545
 546
 547 #ifdef VERBOSE_DEBUG
 548         print_hex_dump_bytes("%s: ", __func__, DUMP_PREFIX_NONE,
 549                              pPeerHTCap, sizeof(struct ht_capab_ele));
 550 #endif
 551         HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
 552                           (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
 553         pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
 554                                  true : false);
 555
 556         pHTInfo->bCurShortGI20MHz = ((pHTInfo->bRegShortGI20MHz) ?
 557                                     ((pPeerHTCap->ShortGI20Mhz == 1) ?
 558                                     true : false) : false);
 559         pHTInfo->bCurShortGI40MHz = ((pHTInfo->bRegShortGI40MHz) ?
 560                                      ((pPeerHTCap->ShortGI40Mhz == 1) ?
 561                                      true : false) : false);
 562
 563         pHTInfo->bCurSuppCCK = ((pHTInfo->bRegSuppCCK) ?
 564                                ((pPeerHTCap->DssCCk == 1) ? true :
 565                                false) : false);
 566
 567
 568         pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
 569
 570         nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
 571
 572         if (pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize)
 573                 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
 574         else
 575                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 576
 577         pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
 578         if (ieee->rtllib_ap_sec_type &&
 579            (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))) {
 580                 if ((pHTInfo->IOTPeer == HT_IOT_PEER_ATHEROS) ||
 581                                 (pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN))
 582                         pHTInfo->bCurrentAMPDUEnable = false;
 583         }
 584
 585         if (!pHTInfo->bRegRT2RTAggregation) {
 586                 if (pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
 587                         pHTInfo->CurrentAMPDUFactor =
 588                                                  pPeerHTCap->MaxRxAMPDUFactor;
 589                 else
 590                         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 591
 592         } else {
 593                 if (ieee->current_network.bssht.bdRT2RTAggregation) {
 594                         if (ieee->pairwise_key_type != KEY_TYPE_NA)
 595                                 pHTInfo->CurrentAMPDUFactor =
 596                                                  pPeerHTCap->MaxRxAMPDUFactor;
 597                         else
 598                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
 599                 } else {
 600                         if (pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
 601                                 pHTInfo->CurrentAMPDUFactor =
 602                                                  pPeerHTCap->MaxRxAMPDUFactor;
 603                         else
 604                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
 605                 }
 606         }
 607         if (pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
 608                 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
 609         else
 610                 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
 611         if (pHTInfo->IOTAction & HT_IOT_ACT_TX_USE_AMSDU_8K) {
 612                 pHTInfo->bCurrentAMPDUEnable = false;
 613                 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
 614                 pHTInfo->ForcedAMSDUMaxSize = 7935;
 615         }
 616         pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
 617
 618         if (pPeerHTCap->MCS[0] == 0)
 619                 pPeerHTCap->MCS[0] = 0xff;
 620
 621         HTIOTActDetermineRaFunc(ieee, ((pPeerHTCap->MCS[1]) != 0));
 622
 623         HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
 624
 625         pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
 626         if (pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
 627                 pMcsFilter = MCS_FILTER_1SS;
 628         else
 629                 pMcsFilter = MCS_FILTER_ALL;
 630         ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 631                                    ieee->dot11HTOperationalRateSet, pMcsFilter);
 632         ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 633
 634         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
 635 }
 636
 637 void HTInitializeHTInfo(struct rtllib_device *ieee)
 638 {
 639         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 640
 641         netdev_vdbg(ieee->dev, "%s()\n", __func__);
 642         pHTInfo->bCurrentHTSupport = false;
 643
 644         pHTInfo->bCurBW40MHz = false;
 645         pHTInfo->bCurTxBW40MHz = false;
 646
 647         pHTInfo->bCurShortGI20MHz = false;
 648         pHTInfo->bCurShortGI40MHz = false;
 649         pHTInfo->bForcedShortGI = false;
 650
 651         pHTInfo->bCurSuppCCK = true;
 652
 653         pHTInfo->bCurrent_AMSDU_Support = false;
 654         pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 655         pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
 656         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 657
 658         memset((void *)(&(pHTInfo->SelfHTCap)), 0,
 659                 sizeof(pHTInfo->SelfHTCap));
 660         memset((void *)(&(pHTInfo->SelfHTInfo)), 0,
 661                 sizeof(pHTInfo->SelfHTInfo));
 662         memset((void *)(&(pHTInfo->PeerHTCapBuf)), 0,
 663                 sizeof(pHTInfo->PeerHTCapBuf));
 664         memset((void *)(&(pHTInfo->PeerHTInfoBuf)), 0,
 665                 sizeof(pHTInfo->PeerHTInfoBuf));
 666
 667         pHTInfo->bSwBwInProgress = false;
 668
 669         pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
 670
 671         pHTInfo->bCurrentRT2RTAggregation = false;
 672         pHTInfo->bCurrentRT2RTLongSlotTime = false;
 673         pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 674
 675         pHTInfo->IOTPeer = 0;
 676         pHTInfo->IOTAction = 0;
 677         pHTInfo->IOTRaFunc = 0;
 678
 679         {
 680                 u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
 681
 682                 RegHTSuppRateSets[0] = 0xFF;
 683                 RegHTSuppRateSets[1] = 0xFF;
 684                 RegHTSuppRateSets[4] = 0x01;
 685         }
 686 }
 687
 688 void HTInitializeBssDesc(struct bss_ht *pBssHT)
 689 {
 690
 691         pBssHT->bdSupportHT = false;
 692         memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
 693         pBssHT->bdHTCapLen = 0;
 694         memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
 695         pBssHT->bdHTInfoLen = 0;
 696
 697         pBssHT->bdHTSpecVer = HT_SPEC_VER_IEEE;
 698
 699         pBssHT->bdRT2RTAggregation = false;
 700         pBssHT->bdRT2RTLongSlotTime = false;
 701         pBssHT->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 702 }
 703
 704 void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
 705                                    struct rtllib_network *pNetwork)
 706 {
 707         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 708         u8      bIOTAction = 0;
 709
 710         netdev_vdbg(ieee->dev, "%s()\n", __func__);
 711         /* unmark bEnableHT flag here is the same reason why unmarked in
 712          * function rtllib_softmac_new_net. WB 2008.09.10
 713          */
 714         if (pNetwork->bssht.bdSupportHT) {
 715                 pHTInfo->bCurrentHTSupport = true;
 716                 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
 717
 718                 if (pNetwork->bssht.bdHTCapLen > 0 &&
 719                     pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
 720                         memcpy(pHTInfo->PeerHTCapBuf,
 721                                pNetwork->bssht.bdHTCapBuf,
 722                                pNetwork->bssht.bdHTCapLen);
 723
 724                 if (pNetwork->bssht.bdHTInfoLen > 0 &&
 725                     pNetwork->bssht.bdHTInfoLen <=
 726                     sizeof(pHTInfo->PeerHTInfoBuf))
 727                         memcpy(pHTInfo->PeerHTInfoBuf,
 728                                pNetwork->bssht.bdHTInfoBuf,
 729                                pNetwork->bssht.bdHTInfoLen);
 730
 731                 if (pHTInfo->bRegRT2RTAggregation) {
 732                         pHTInfo->bCurrentRT2RTAggregation =
 733                                  pNetwork->bssht.bdRT2RTAggregation;
 734                         pHTInfo->bCurrentRT2RTLongSlotTime =
 735                                  pNetwork->bssht.bdRT2RTLongSlotTime;
 736                         pHTInfo->RT2RT_HT_Mode = pNetwork->bssht.RT2RT_HT_Mode;
 737                 } else {
 738                         pHTInfo->bCurrentRT2RTAggregation = false;
 739                         pHTInfo->bCurrentRT2RTLongSlotTime = false;
 740                         pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 741                 }
 742
 743                 HTIOTPeerDetermine(ieee);
 744
 745                 pHTInfo->IOTAction = 0;
 746                 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
 747                 if (bIOTAction)
 748                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
 749
 750                 bIOTAction = HTIOTActIsDisableMCS15(ieee);
 751                 if (bIOTAction)
 752                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
 753
 754                 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee);
 755                 if (bIOTAction)
 756                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
 757
 758
 759                 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
 760                 if (bIOTAction)
 761                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
 762
 763                 bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, pNetwork);
 764                 if (bIOTAction)
 765                         pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
 766                 bIOTAction = HTIOTActIsCCDFsync(ieee);
 767                 if (bIOTAction)
 768                         pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
 769         } else {
 770                 pHTInfo->bCurrentHTSupport = false;
 771                 pHTInfo->bCurrentRT2RTAggregation = false;
 772                 pHTInfo->bCurrentRT2RTLongSlotTime = false;
 773                 pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 774
 775                 pHTInfo->IOTAction = 0;
 776                 pHTInfo->IOTRaFunc = 0;
 777         }
 778 }
 779
 780 void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
 781                                      struct rtllib_network *pNetwork)
 782 {
 783         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 784         struct ht_info_ele *pPeerHTInfo =
 785                  (struct ht_info_ele *)pNetwork->bssht.bdHTInfoBuf;
 786
 787         if (pHTInfo->bCurrentHTSupport) {
 788                 if (pNetwork->bssht.bdHTInfoLen != 0)
 789                         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
 790         }
 791 }
 792 EXPORT_SYMBOL(HT_update_self_and_peer_setting);
 793
 794 void HTUseDefaultSetting(struct rtllib_device *ieee)
 795 {
 796         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 797
 798         if (pHTInfo->bEnableHT) {
 799                 pHTInfo->bCurrentHTSupport = true;
 800                 pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
 801
 802                 pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
 803                 pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz;
 804
 805                 pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz;
 806
 807                 if (ieee->iw_mode == IW_MODE_ADHOC)
 808                         ieee->current_network.qos_data.active =
 809                                  ieee->current_network.qos_data.supported;
 810                 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
 811                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 812
 813                 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
 814                 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 815
 816                 pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
 817
 818                 HTFilterMCSRate(ieee, ieee->Regdot11TxHTOperationalRateSet,
 819                                 ieee->dot11HTOperationalRateSet);
 820                 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 821                                            ieee->dot11HTOperationalRateSet,
 822                                            MCS_FILTER_ALL);
 823                 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 824
 825         } else {
 826                 pHTInfo->bCurrentHTSupport = false;
 827         }
 828 }
 829
 830 u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
 831 {
 832         if (ieee->pHTInfo->bCurrentHTSupport) {
 833                 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
 834                         netdev_dbg(ieee->dev, "HT CONTROL FILED EXIST!!\n");
 835                         return true;
 836                 }
 837         }
 838         return false;
 839 }
 840
 841 static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
 842 {
 843         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 844
 845         netdev_vdbg(ieee->dev, "%s()\n", __func__);
 846
 847         if (pHTInfo->bCurBW40MHz) {
 848                 if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
 849                         ieee->set_chan(ieee->dev,
 850                                        ieee->current_network.channel + 2);
 851                 else if (pHTInfo->CurSTAExtChnlOffset ==
 852                          HT_EXTCHNL_OFFSET_LOWER)
 853                         ieee->set_chan(ieee->dev,
 854                                        ieee->current_network.channel - 2);
 855                 else
 856                         ieee->set_chan(ieee->dev,
 857                                        ieee->current_network.channel);
 858
 859                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
 860                                        pHTInfo->CurSTAExtChnlOffset);
 861         } else {
 862                 ieee->set_chan(ieee->dev, ieee->current_network.channel);
 863                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20,
 864                                        HT_EXTCHNL_OFFSET_NO_EXT);
 865         }
 866
 867         pHTInfo->bSwBwInProgress = false;
 868 }
 869
 870 void HTSetConnectBwMode(struct rtllib_device *ieee,
 871                         enum ht_channel_width Bandwidth,
 872                         enum ht_extchnl_offset Offset)
 873 {
 874         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 875
 876         if (!pHTInfo->bRegBW40MHz)
 877                 return;
 878
 879         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 880                 Bandwidth = HT_CHANNEL_WIDTH_20;
 881
 882         if (pHTInfo->bSwBwInProgress) {
 883                 pr_info("%s: bSwBwInProgress!!\n", __func__);
 884                 return;
 885         }
 886         if (Bandwidth == HT_CHANNEL_WIDTH_20_40) {
 887                 if (ieee->current_network.channel < 2 &&
 888                     Offset == HT_EXTCHNL_OFFSET_LOWER)
 889                         Offset = HT_EXTCHNL_OFFSET_NO_EXT;
 890                 if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
 891                     Offset == HT_EXTCHNL_OFFSET_LOWER) {
 892                         pHTInfo->bCurBW40MHz = true;
 893                         pHTInfo->CurSTAExtChnlOffset = Offset;
 894                 } else {
 895                         pHTInfo->bCurBW40MHz = false;
 896                         pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 897                 }
 898         } else {
 899                 pHTInfo->bCurBW40MHz = false;
 900                 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 901         }
 902
 903         netdev_dbg(ieee->dev, "%s():pHTInfo->bCurBW40MHz:%x\n", __func__,
 904                    pHTInfo->bCurBW40MHz);
 905
 906         pHTInfo->bSwBwInProgress = true;
 907
 908         HTSetConnectBwModeCallback(ieee);
 909 }