drivers/staging/rtl8192e/rtl819x_HTProc.c

   1 /******************************************************************************
   2  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   3  *
   4  * This program is distributed in the hope that it will be useful, but WITHOUT
   5  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   6  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   7  * more details.
   8  *
   9  * The full GNU General Public License is included in this distribution in the
  10  * file called LICENSE.
  11  *
  12  * Contact Information:
  13  * wlanfae <wlanfae@realtek.com>
  14 ******************************************************************************/
  15 #include "rtllib.h"
  16 #include "rtl819x_HT.h"
  17 u8 MCS_FILTER_ALL[16] = {
  18         0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  19         0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
  20 };
  21
  22 u8 MCS_FILTER_1SS[16] = {
  23         0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
  24         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  25 ;
  26
  27 u16 MCS_DATA_RATE[2][2][77] = {
  28         {{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234,
  29          260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416,
  30          468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182,
  31          182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156,
  32          181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273,
  33          312, 351, 312, 351, 390, 390, 429},
  34         {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
  35          43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520,
  36          578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231,
  37          173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260,
  38          231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390,
  39          433, 433, 477} },
  40         {{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486,
  41          540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648,
  42          864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324,
  43          378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324,
  44          378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648,
  45          729, 648, 729, 810, 810, 891},
  46         {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540,
  47          600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720,
  48          960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360,
  49          420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360,
  50          420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720,
  51          810, 720, 810, 900, 900, 990} }
  52 };
  53
  54 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
  55
  56 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
  57
  58 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
  59
  60 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
  61
  62 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
  63
  64 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
  65
  66 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
  67
  68 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
  69
  70 static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
  71
  72 static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
  73
  74 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
  75
  76 static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
  77
  78 void HTUpdateDefaultSetting(struct rtllib_device *ieee)
  79 {
  80         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
  81
  82         pHTInfo->bAcceptAddbaReq = 1;
  83
  84         pHTInfo->bRegShortGI20MHz = 1;
  85         pHTInfo->bRegShortGI40MHz = 1;
  86
  87         pHTInfo->bRegBW40MHz = 1;
  88
  89         if (pHTInfo->bRegBW40MHz)
  90                 pHTInfo->bRegSuppCCK = 1;
  91         else
  92                 pHTInfo->bRegSuppCCK = true;
  93
  94         pHTInfo->nAMSDU_MaxSize = 7935UL;
  95         pHTInfo->bAMSDU_Support = 0;
  96
  97         pHTInfo->bAMPDUEnable = 1;
  98         pHTInfo->AMPDU_Factor = 2;
  99         pHTInfo->MPDU_Density = 0;
 100
 101         pHTInfo->SelfMimoPs = 3;
 102         if (pHTInfo->SelfMimoPs == 2)
 103                 pHTInfo->SelfMimoPs = 3;
 104         ieee->bTxDisableRateFallBack = 0;
 105         ieee->bTxUseDriverAssingedRate = 0;
 106
 107         ieee->bTxEnableFwCalcDur = 1;
 108
 109         pHTInfo->bRegRT2RTAggregation = 1;
 110
 111         pHTInfo->bRegRxReorderEnable = 1;
 112         pHTInfo->RxReorderWinSize = 64;
 113         pHTInfo->RxReorderPendingTime = 30;
 114 }
 115
 116 static u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
 117 {
 118         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 119
 120         u8      is40MHz = (pHTInfo->bCurBW40MHz) ? 1 : 0;
 121         u8      isShortGI = (pHTInfo->bCurBW40MHz) ?
 122                             ((pHTInfo->bCurShortGI40MHz) ? 1 : 0) :
 123                             ((pHTInfo->bCurShortGI20MHz) ? 1 : 0);
 124         return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
 125 }
 126
 127 u16  TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
 128 {
 129         u16     CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
 130                                    0x24, 0x30, 0x48, 0x60, 0x6c};
 131         u8      is40MHz = 0;
 132         u8      isShortGI = 0;
 133
 134         if (nDataRate < 12)
 135                 return CCKOFDMRate[nDataRate];
 136         if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
 137                 is40MHz = 0;
 138                 isShortGI = 0;
 139         } else if (nDataRate >= 0x20  && nDataRate <= 0x2f) {
 140                 is40MHz = 1;
 141                 isShortGI = 0;
 142         } else if (nDataRate >= 0x30  && nDataRate <= 0x3f) {
 143                 is40MHz = 0;
 144                 isShortGI = 1;
 145         } else if (nDataRate >= 0x40  && nDataRate <= 0x4f) {
 146                 is40MHz = 1;
 147                 isShortGI = 1;
 148         }
 149         return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
 150 }
 151
 152 bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
 153 {
 154         bool                    retValue = false;
 155         struct rtllib_network *net = &ieee->current_network;
 156
 157         if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 158             (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 159             (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 160             (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 161             (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 162             (net->ralink_cap_exist))
 163                 retValue = true;
 164         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 165                 !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 166                 !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
 167                 (net->broadcom_cap_exist))
 168                 retValue = true;
 169         else if (net->bssht.bdRT2RTAggregation)
 170                 retValue = true;
 171         else
 172                 retValue = false;
 173
 174         return retValue;
 175 }
 176
 177 static void HTIOTPeerDetermine(struct rtllib_device *ieee)
 178 {
 179         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 180         struct rtllib_network *net = &ieee->current_network;
 181
 182         if (net->bssht.bdRT2RTAggregation) {
 183                 pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
 184                 if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_92SE)
 185                         pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK_92SE;
 186                 if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_SOFTAP)
 187                         pHTInfo->IOTPeer = HT_IOT_PEER_92U_SOFTAP;
 188         } else if (net->broadcom_cap_exist)
 189                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 190         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 191                  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 192                  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3))
 193                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 194         else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 195                  (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 196                  (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 197                  (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 198                  (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 199                   net->ralink_cap_exist)
 200                 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
 201         else if ((net->atheros_cap_exist) ||
 202                 (memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
 203                 (memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0))
 204                 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
 205         else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
 206                   net->cisco_cap_exist)
 207                 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
 208         else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
 209                   net->marvell_cap_exist)
 210                 pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL;
 211         else if (net->airgo_cap_exist)
 212                 pHTInfo->IOTPeer = HT_IOT_PEER_AIRGO;
 213         else
 214                 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 215
 216         netdev_dbg(ieee->dev, "IOTPEER: %x\n", pHTInfo->IOTPeer);
 217 }
 218
 219 static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
 220 {
 221         return 0;
 222 }
 223
 224
 225 static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
 226 {
 227         return false;
 228 }
 229
 230 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
 231 {
 232         return false;
 233 }
 234
 235 static u8 HTIOTActIsDisableEDCATurbo(struct rtllib_device *ieee,
 236                                      u8 *PeerMacAddr)
 237 {
 238         return false;
 239 }
 240
 241 static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
 242                                  struct rtllib_network *network)
 243 {
 244         u8      retValue = 0;
 245
 246
 247         if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
 248                 retValue = 1;
 249
 250         return retValue;
 251 }
 252
 253 static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
 254 {
 255         u8      retValue = 0;
 256
 257         if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
 258                 retValue = 1;
 259         return retValue;
 260 }
 261
 262 static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
 263 {
 264         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 265
 266         pHTInfo->IOTRaFunc &= HT_IOT_RAFUNC_DISABLE_ALL;
 267
 268         if (pHTInfo->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
 269                 pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_PEER_1R;
 270
 271         if (pHTInfo->IOTAction & HT_IOT_ACT_AMSDU_ENABLE)
 272                 pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_TX_AMSDU;
 273
 274 }
 275
 276 void HTResetIOTSetting(struct rt_hi_throughput *pHTInfo)
 277 {
 278         pHTInfo->IOTAction = 0;
 279         pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 280         pHTInfo->IOTRaFunc = 0;
 281 }
 282
 283 void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
 284                                   u8 *len, u8 IsEncrypt, bool bAssoc)
 285 {
 286         struct rt_hi_throughput *pHT = ieee->pHTInfo;
 287         struct ht_capab_ele *pCapELE = NULL;
 288
 289         if ((posHTCap == NULL) || (pHT == NULL)) {
 290                 netdev_warn(ieee->dev,
 291                             "%s(): posHTCap and pHTInfo are null\n", __func__);
 292                 return;
 293         }
 294         memset(posHTCap, 0, *len);
 295
 296         if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
 297                 u8      EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
 298
 299                 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
 300                 pCapELE = (struct ht_capab_ele *)&(posHTCap[4]);
 301                 *len = 30 + 2;
 302         } else {
 303                 pCapELE = (struct ht_capab_ele *)posHTCap;
 304                 *len = 26 + 2;
 305         }
 306
 307         pCapELE->AdvCoding              = 0;
 308         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 309                 pCapELE->ChlWidth = 0;
 310         else
 311                 pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
 312
 313         pCapELE->MimoPwrSave            = pHT->SelfMimoPs;
 314         pCapELE->GreenField             = 0;
 315         pCapELE->ShortGI20Mhz           = 1;
 316         pCapELE->ShortGI40Mhz           = 1;
 317
 318         pCapELE->TxSTBC                 = 1;
 319         pCapELE->RxSTBC                 = 0;
 320         pCapELE->DelayBA                = 0;
 321         pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
 322         pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
 323         pCapELE->PSMP = 0;
 324         pCapELE->LSigTxopProtect = 0;
 325
 326
 327         netdev_dbg(ieee->dev,
 328                    "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n",
 329                    pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
 330
 331         if (IsEncrypt) {
 332                 pCapELE->MPDUDensity    = 7;
 333                 pCapELE->MaxRxAMPDUFactor       = 2;
 334         } else {
 335                 pCapELE->MaxRxAMPDUFactor       = 3;
 336                 pCapELE->MPDUDensity    = 0;
 337         }
 338
 339         memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
 340         memset(&pCapELE->ExtHTCapInfo, 0, 2);
 341         memset(pCapELE->TxBFCap, 0, 4);
 342
 343         pCapELE->ASCap = 0;
 344
 345         if (bAssoc) {
 346                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
 347                         pCapELE->MCS[1] &= 0x7f;
 348
 349                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
 350                         pCapELE->MCS[1] &= 0xbf;
 351
 352                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
 353                         pCapELE->MCS[1] &= 0x00;
 354
 355                 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
 356                         pCapELE->ShortGI40Mhz           = 0;
 357
 358                 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
 359                         pCapELE->ChlWidth = 0;
 360                         pCapELE->MCS[1] = 0;
 361                 }
 362         }
 363 }
 364
 365 void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
 366                             u8 *len, u8 IsEncrypt)
 367 {
 368         struct rt_hi_throughput *pHT = ieee->pHTInfo;
 369         struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
 370
 371         if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) {
 372                 netdev_warn(ieee->dev,
 373                             "%s(): posHTInfo and pHTInfoEle are null\n",
 374                             __func__);
 375                 return;
 376         }
 377
 378         memset(posHTInfo, 0, *len);
 379         if ((ieee->iw_mode == IW_MODE_ADHOC) ||
 380             (ieee->iw_mode == IW_MODE_MASTER)) {
 381                 pHTInfoEle->ControlChl  = ieee->current_network.channel;
 382                 pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false) ?
 383                                             HT_EXTCHNL_OFFSET_NO_EXT :
 384                                             (ieee->current_network.channel <= 6)
 385                                             ? HT_EXTCHNL_OFFSET_UPPER :
 386                                             HT_EXTCHNL_OFFSET_LOWER);
 387                 pHTInfoEle->RecommemdedTxWidth  = pHT->bRegBW40MHz;
 388                 pHTInfoEle->RIFS                        = 0;
 389                 pHTInfoEle->PSMPAccessOnly              = 0;
 390                 pHTInfoEle->SrvIntGranularity           = 0;
 391                 pHTInfoEle->OptMode                     = pHT->CurrentOpMode;
 392                 pHTInfoEle->NonGFDevPresent             = 0;
 393                 pHTInfoEle->DualBeacon                  = 0;
 394                 pHTInfoEle->SecondaryBeacon             = 0;
 395                 pHTInfoEle->LSigTxopProtectFull         = 0;
 396                 pHTInfoEle->PcoActive                   = 0;
 397                 pHTInfoEle->PcoPhase                    = 0;
 398
 399                 memset(pHTInfoEle->BasicMSC, 0, 16);
 400
 401
 402                 *len = 22 + 2;
 403
 404         } else {
 405                 *len = 0;
 406         }
 407 }
 408
 409 void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
 410                                 u8 *len)
 411 {
 412         if (posRT2RTAgg == NULL) {
 413                 netdev_warn(ieee->dev, "%s(): posRT2RTAgg is null\n", __func__);
 414                 return;
 415         }
 416         memset(posRT2RTAgg, 0, *len);
 417         *posRT2RTAgg++ = 0x00;
 418         *posRT2RTAgg++ = 0xe0;
 419         *posRT2RTAgg++ = 0x4c;
 420         *posRT2RTAgg++ = 0x02;
 421         *posRT2RTAgg++ = 0x01;
 422
 423         *posRT2RTAgg = 0x30;
 424
 425         if (ieee->bSupportRemoteWakeUp)
 426                 *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
 427
 428         *len = 6 + 2;
 429 }
 430
 431 static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
 432 {
 433         u8 i;
 434
 435         if (pOperateMCS == NULL) {
 436                 netdev_warn(ieee->dev, "%s(): pOperateMCS is null\n", __func__);
 437                 return false;
 438         }
 439
 440         switch (ieee->mode) {
 441         case IEEE_A:
 442         case IEEE_B:
 443         case IEEE_G:
 444                 for (i = 0; i <= 15; i++)
 445                         pOperateMCS[i] = 0;
 446                 break;
 447         case IEEE_N_24G:
 448         case IEEE_N_5G:
 449                 pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
 450                 pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
 451                 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
 452                 break;
 453         default:
 454                 break;
 455
 456         }
 457
 458         return true;
 459 }
 460
 461 u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 462                        u8 *pMCSFilter)
 463 {
 464         u8              i, j;
 465         u8              bitMap;
 466         u8              mcsRate = 0;
 467         u8              availableMcsRate[16];
 468
 469         if (pMCSRateSet == NULL || pMCSFilter == NULL) {
 470                 netdev_warn(ieee->dev,
 471                             "%s(): pMCSRateSet and pMCSFilter are null\n",
 472                             __func__);
 473                 return false;
 474         }
 475         for (i = 0; i < 16; i++)
 476                 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
 477
 478         for (i = 0; i < 16; i++) {
 479                 if (availableMcsRate[i] != 0)
 480                         break;
 481         }
 482         if (i == 16)
 483                 return false;
 484
 485         for (i = 0; i < 16; i++) {
 486                 if (availableMcsRate[i] != 0) {
 487                         bitMap = availableMcsRate[i];
 488                         for (j = 0; j < 8; j++) {
 489                                 if ((bitMap%2) != 0) {
 490                                         if (HTMcsToDataRate(ieee, (8*i+j)) >
 491                                             HTMcsToDataRate(ieee, mcsRate))
 492                                                 mcsRate = (8*i+j);
 493                                 }
 494                                 bitMap >>= 1;
 495                         }
 496                 }
 497         }
 498         return mcsRate | 0x80;
 499 }
 500
 501 static u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS,
 502                           u8 *pOperateMCS)
 503 {
 504
 505         u8 i;
 506
 507         for (i = 0; i <= 15; i++)
 508                 pOperateMCS[i] = ieee->Regdot11TxHTOperationalRateSet[i] &
 509                                  pSupportMCS[i];
 510
 511         HT_PickMCSRate(ieee, pOperateMCS);
 512
 513         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 514                 pOperateMCS[1] = 0;
 515
 516         for (i = 2; i <= 15; i++)
 517                 pOperateMCS[i] = 0;
 518
 519         return true;
 520 }
 521
 522 void HTSetConnectBwMode(struct rtllib_device *ieee,
 523                         enum ht_channel_width Bandwidth,
 524                         enum ht_extchnl_offset Offset);
 525
 526 void HTOnAssocRsp(struct rtllib_device *ieee)
 527 {
 528         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 529         struct ht_capab_ele *pPeerHTCap = NULL;
 530         struct ht_info_ele *pPeerHTInfo = NULL;
 531         u16 nMaxAMSDUSize = 0;
 532         u8 *pMcsFilter = NULL;
 533
 534         static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
 535         static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
 536
 537         if (pHTInfo->bCurrentHTSupport == false) {
 538                 netdev_warn(ieee->dev, "%s(): HT_DISABLE\n", __func__);
 539                 return;
 540         }
 541         netdev_dbg(ieee->dev, "%s(): HT_ENABLE\n", __func__);
 542
 543         if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
 544                 pPeerHTCap = (struct ht_capab_ele *)(&pHTInfo->PeerHTCapBuf[4]);
 545         else
 546                 pPeerHTCap = (struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf);
 547
 548         if (!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
 549                 pPeerHTInfo = (struct ht_info_ele *)
 550                              (&pHTInfo->PeerHTInfoBuf[4]);
 551         else
 552                 pPeerHTInfo = (struct ht_info_ele *)(pHTInfo->PeerHTInfoBuf);
 553
 554
 555 #ifdef VERBOSE_DEBUG
 556         print_hex_dump_bytes("HTOnAssocRsp(): ", DUMP_PREFIX_NONE,
 557                              pPeerHTCap, sizeof(struct ht_capab_ele));
 558 #endif
 559         HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
 560                           (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
 561         pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
 562                                  true : false);
 563
 564         pHTInfo->bCurShortGI20MHz = ((pHTInfo->bRegShortGI20MHz) ?
 565                                     ((pPeerHTCap->ShortGI20Mhz == 1) ?
 566                                     true : false) : false);
 567         pHTInfo->bCurShortGI40MHz = ((pHTInfo->bRegShortGI40MHz) ?
 568                                      ((pPeerHTCap->ShortGI40Mhz == 1) ?
 569                                      true : false) : false);
 570
 571         pHTInfo->bCurSuppCCK = ((pHTInfo->bRegSuppCCK) ?
 572                                ((pPeerHTCap->DssCCk == 1) ? true :
 573                                false) : false);
 574
 575
 576         pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
 577
 578         nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
 579
 580         if (pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize)
 581                 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
 582         else
 583                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 584
 585         pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
 586         if (ieee->rtllib_ap_sec_type &&
 587            (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))) {
 588                 if ((pHTInfo->IOTPeer == HT_IOT_PEER_ATHEROS) ||
 589                                 (pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN))
 590                         pHTInfo->bCurrentAMPDUEnable = false;
 591         }
 592
 593         if (!pHTInfo->bRegRT2RTAggregation) {
 594                 if (pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
 595                         pHTInfo->CurrentAMPDUFactor =
 596                                                  pPeerHTCap->MaxRxAMPDUFactor;
 597                 else
 598                         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 599
 600         } else {
 601                 if (ieee->current_network.bssht.bdRT2RTAggregation) {
 602                         if (ieee->pairwise_key_type != KEY_TYPE_NA)
 603                                 pHTInfo->CurrentAMPDUFactor =
 604                                                  pPeerHTCap->MaxRxAMPDUFactor;
 605                         else
 606                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
 607                 } else {
 608                         if (pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
 609                                 pHTInfo->CurrentAMPDUFactor =
 610                                                  pPeerHTCap->MaxRxAMPDUFactor;
 611                         else
 612                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
 613                 }
 614         }
 615         if (pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
 616                 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
 617         else
 618                 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
 619         if (pHTInfo->IOTAction & HT_IOT_ACT_TX_USE_AMSDU_8K) {
 620                 pHTInfo->bCurrentAMPDUEnable = false;
 621                 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
 622                 pHTInfo->ForcedAMSDUMaxSize = 7935;
 623         }
 624         pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
 625
 626         if (pPeerHTCap->MCS[0] == 0)
 627                 pPeerHTCap->MCS[0] = 0xff;
 628
 629         HTIOTActDetermineRaFunc(ieee, ((pPeerHTCap->MCS[1]) != 0));
 630
 631         HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
 632
 633         pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
 634         if (pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
 635                 pMcsFilter = MCS_FILTER_1SS;
 636         else
 637                 pMcsFilter = MCS_FILTER_ALL;
 638         ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 639                                    ieee->dot11HTOperationalRateSet, pMcsFilter);
 640         ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 641
 642         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
 643 }
 644
 645 void HTInitializeHTInfo(struct rtllib_device *ieee)
 646 {
 647         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 648
 649         netdev_vdbg(ieee->dev, "%s()\n", __func__);
 650         pHTInfo->bCurrentHTSupport = false;
 651
 652         pHTInfo->bCurBW40MHz = false;
 653         pHTInfo->bCurTxBW40MHz = false;
 654
 655         pHTInfo->bCurShortGI20MHz = false;
 656         pHTInfo->bCurShortGI40MHz = false;
 657         pHTInfo->bForcedShortGI = false;
 658
 659         pHTInfo->bCurSuppCCK = true;
 660
 661         pHTInfo->bCurrent_AMSDU_Support = false;
 662         pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 663         pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
 664         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 665
 666         memset((void *)(&(pHTInfo->SelfHTCap)), 0,
 667                 sizeof(pHTInfo->SelfHTCap));
 668         memset((void *)(&(pHTInfo->SelfHTInfo)), 0,
 669                 sizeof(pHTInfo->SelfHTInfo));
 670         memset((void *)(&(pHTInfo->PeerHTCapBuf)), 0,
 671                 sizeof(pHTInfo->PeerHTCapBuf));
 672         memset((void *)(&(pHTInfo->PeerHTInfoBuf)), 0,
 673                 sizeof(pHTInfo->PeerHTInfoBuf));
 674
 675         pHTInfo->bSwBwInProgress = false;
 676
 677         pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
 678
 679         pHTInfo->bCurrentRT2RTAggregation = false;
 680         pHTInfo->bCurrentRT2RTLongSlotTime = false;
 681         pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 682
 683         pHTInfo->IOTPeer = 0;
 684         pHTInfo->IOTAction = 0;
 685         pHTInfo->IOTRaFunc = 0;
 686
 687         {
 688                 u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
 689
 690                 RegHTSuppRateSets[0] = 0xFF;
 691                 RegHTSuppRateSets[1] = 0xFF;
 692                 RegHTSuppRateSets[4] = 0x01;
 693         }
 694 }
 695
 696 void HTInitializeBssDesc(struct bss_ht *pBssHT)
 697 {
 698
 699         pBssHT->bdSupportHT = false;
 700         memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
 701         pBssHT->bdHTCapLen = 0;
 702         memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
 703         pBssHT->bdHTInfoLen = 0;
 704
 705         pBssHT->bdHTSpecVer = HT_SPEC_VER_IEEE;
 706
 707         pBssHT->bdRT2RTAggregation = false;
 708         pBssHT->bdRT2RTLongSlotTime = false;
 709         pBssHT->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 710 }
 711
 712 void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
 713                                    struct rtllib_network *pNetwork)
 714 {
 715         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 716         u8      bIOTAction = 0;
 717
 718         netdev_vdbg(ieee->dev, "%s()\n", __func__);
 719         /* unmark bEnableHT flag here is the same reason why unmarked in
 720          * function rtllib_softmac_new_net. WB 2008.09.10
 721          */
 722         if (pNetwork->bssht.bdSupportHT) {
 723                 pHTInfo->bCurrentHTSupport = true;
 724                 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
 725
 726                 if (pNetwork->bssht.bdHTCapLen > 0 &&
 727                     pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
 728                         memcpy(pHTInfo->PeerHTCapBuf,
 729                                pNetwork->bssht.bdHTCapBuf,
 730                                pNetwork->bssht.bdHTCapLen);
 731
 732                 if (pNetwork->bssht.bdHTInfoLen > 0 &&
 733                     pNetwork->bssht.bdHTInfoLen <=
 734                     sizeof(pHTInfo->PeerHTInfoBuf))
 735                         memcpy(pHTInfo->PeerHTInfoBuf,
 736                                pNetwork->bssht.bdHTInfoBuf,
 737                                pNetwork->bssht.bdHTInfoLen);
 738
 739                 if (pHTInfo->bRegRT2RTAggregation) {
 740                         pHTInfo->bCurrentRT2RTAggregation =
 741                                  pNetwork->bssht.bdRT2RTAggregation;
 742                         pHTInfo->bCurrentRT2RTLongSlotTime =
 743                                  pNetwork->bssht.bdRT2RTLongSlotTime;
 744                         pHTInfo->RT2RT_HT_Mode = pNetwork->bssht.RT2RT_HT_Mode;
 745                 } else {
 746                         pHTInfo->bCurrentRT2RTAggregation = false;
 747                         pHTInfo->bCurrentRT2RTLongSlotTime = false;
 748                         pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 749                 }
 750
 751                 HTIOTPeerDetermine(ieee);
 752
 753                 pHTInfo->IOTAction = 0;
 754                 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
 755                 if (bIOTAction)
 756                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
 757
 758                 bIOTAction = HTIOTActIsDisableMCS15(ieee);
 759                 if (bIOTAction)
 760                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
 761
 762                 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee);
 763                 if (bIOTAction)
 764                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
 765
 766
 767                 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
 768                 if (bIOTAction)
 769                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
 770
 771                 bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, pNetwork);
 772                 if (bIOTAction)
 773                         pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
 774                 bIOTAction = HTIOTActIsCCDFsync(ieee);
 775                 if (bIOTAction)
 776                         pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
 777         } else {
 778                 pHTInfo->bCurrentHTSupport = false;
 779                 pHTInfo->bCurrentRT2RTAggregation = false;
 780                 pHTInfo->bCurrentRT2RTLongSlotTime = false;
 781                 pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 782
 783                 pHTInfo->IOTAction = 0;
 784                 pHTInfo->IOTRaFunc = 0;
 785         }
 786 }
 787
 788 void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
 789                                      struct rtllib_network *pNetwork)
 790 {
 791         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 792         struct ht_info_ele *pPeerHTInfo =
 793                  (struct ht_info_ele *)pNetwork->bssht.bdHTInfoBuf;
 794
 795         if (pHTInfo->bCurrentHTSupport) {
 796                 if (pNetwork->bssht.bdHTInfoLen != 0)
 797                         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
 798         }
 799 }
 800 EXPORT_SYMBOL(HT_update_self_and_peer_setting);
 801
 802 void HTUseDefaultSetting(struct rtllib_device *ieee)
 803 {
 804         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 805
 806         if (pHTInfo->bEnableHT) {
 807                 pHTInfo->bCurrentHTSupport = true;
 808                 pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
 809
 810                 pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
 811                 pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz;
 812
 813                 pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz;
 814
 815                 if (ieee->iw_mode == IW_MODE_ADHOC)
 816                         ieee->current_network.qos_data.active =
 817                                  ieee->current_network.qos_data.supported;
 818                 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
 819                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
 820
 821                 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
 822                 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
 823
 824                 pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
 825
 826                 HTFilterMCSRate(ieee, ieee->Regdot11TxHTOperationalRateSet,
 827                                 ieee->dot11HTOperationalRateSet);
 828                 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 829                                            ieee->dot11HTOperationalRateSet,
 830                                            MCS_FILTER_ALL);
 831                 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 832
 833         } else {
 834                 pHTInfo->bCurrentHTSupport = false;
 835         }
 836 }
 837
 838 u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
 839 {
 840         if (ieee->pHTInfo->bCurrentHTSupport) {
 841                 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
 842                         netdev_dbg(ieee->dev, "HT CONTROL FILED EXIST!!\n");
 843                         return true;
 844                 }
 845         }
 846         return false;
 847 }
 848
 849 static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
 850 {
 851         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 852
 853         netdev_vdbg(ieee->dev, "%s()\n", __func__);
 854
 855         if (pHTInfo->bCurBW40MHz) {
 856                 if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
 857                         ieee->set_chan(ieee->dev,
 858                                        ieee->current_network.channel + 2);
 859                 else if (pHTInfo->CurSTAExtChnlOffset ==
 860                          HT_EXTCHNL_OFFSET_LOWER)
 861                         ieee->set_chan(ieee->dev,
 862                                        ieee->current_network.channel - 2);
 863                 else
 864                         ieee->set_chan(ieee->dev,
 865                                        ieee->current_network.channel);
 866
 867                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
 868                                        pHTInfo->CurSTAExtChnlOffset);
 869         } else {
 870                 ieee->set_chan(ieee->dev, ieee->current_network.channel);
 871                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20,
 872                                        HT_EXTCHNL_OFFSET_NO_EXT);
 873         }
 874
 875         pHTInfo->bSwBwInProgress = false;
 876 }
 877
 878 void HTSetConnectBwMode(struct rtllib_device *ieee,
 879                         enum ht_channel_width Bandwidth,
 880                         enum ht_extchnl_offset Offset)
 881 {
 882         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 883
 884         if (pHTInfo->bRegBW40MHz == false)
 885                 return;
 886
 887         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 888                 Bandwidth = HT_CHANNEL_WIDTH_20;
 889
 890         if (pHTInfo->bSwBwInProgress) {
 891                 pr_info("%s: bSwBwInProgress!!\n", __func__);
 892                 return;
 893         }
 894         if (Bandwidth == HT_CHANNEL_WIDTH_20_40) {
 895                 if (ieee->current_network.channel < 2 &&
 896                     Offset == HT_EXTCHNL_OFFSET_LOWER)
 897                         Offset = HT_EXTCHNL_OFFSET_NO_EXT;
 898                 if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
 899                     Offset == HT_EXTCHNL_OFFSET_LOWER) {
 900                         pHTInfo->bCurBW40MHz = true;
 901                         pHTInfo->CurSTAExtChnlOffset = Offset;
 902                 } else {
 903                         pHTInfo->bCurBW40MHz = false;
 904                         pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 905                 }
 906         } else {
 907                 pHTInfo->bCurBW40MHz = false;
 908                 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 909         }
 910
 911         pr_info("%s():pHTInfo->bCurBW40MHz:%x\n", __func__,
 912                pHTInfo->bCurBW40MHz);
 913
 914         pHTInfo->bSwBwInProgress = true;
 915
 916         HTSetConnectBwModeCallback(ieee);
 917 }