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 *ht_info = ieee->ht_info;
  73
  74         ht_info->bRegShortGI20MHz = 1;
  75         ht_info->bRegShortGI40MHz = 1;
  76
  77         ht_info->bRegBW40MHz = 1;
  78
  79         if (ht_info->bRegBW40MHz)
  80                 ht_info->bRegSuppCCK = 1;
  81         else
  82                 ht_info->bRegSuppCCK = true;
  83
  84         ht_info->nAMSDU_MaxSize = 7935UL;
  85         ht_info->bAMSDU_Support = 0;
  86
  87         ht_info->bAMPDUEnable = 1;
  88         ht_info->AMPDU_Factor = 2;
  89         ht_info->MPDU_Density = 0;
  90
  91         ht_info->self_mimo_ps = 3;
  92         if (ht_info->self_mimo_ps == 2)
  93                 ht_info->self_mimo_ps = 3;
  94         ieee->tx_dis_rate_fallback = 0;
  95         ieee->tx_use_drv_assinged_rate = 0;
  96
  97         ieee->bTxEnableFwCalcDur = 1;
  98
  99         ht_info->reg_rt2rt_aggregation = 1;
 100
 101         ht_info->reg_rx_reorder_enable = 1;
 102         ht_info->rx_reorder_win_size = 64;
 103         ht_info->rx_reorder_pending_time = 30;
 104 }
 105
 106 static u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
 107 {
 108         struct rt_hi_throughput *ht_info = ieee->ht_info;
 109
 110         u8      is40MHz = (ht_info->bCurBW40MHz) ? 1 : 0;
 111         u8      isShortGI = (ht_info->bCurBW40MHz) ?
 112                             ((ht_info->bCurShortGI40MHz) ? 1 : 0) :
 113                             ((ht_info->bCurShortGI20MHz) ? 1 : 0);
 114         return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
 115 }
 116
 117 u16  TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
 118 {
 119         u16     CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
 120                                    0x24, 0x30, 0x48, 0x60, 0x6c};
 121         u8      is40MHz = 0;
 122         u8      isShortGI = 0;
 123
 124         if (nDataRate < 12)
 125                 return CCKOFDMRate[nDataRate];
 126         if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
 127                 is40MHz = 0;
 128                 isShortGI = 0;
 129         } else if (nDataRate >= 0x20  && nDataRate <= 0x2f) {
 130                 is40MHz = 1;
 131                 isShortGI = 0;
 132         } else if (nDataRate >= 0x30  && nDataRate <= 0x3f) {
 133                 is40MHz = 0;
 134                 isShortGI = 1;
 135         } else if (nDataRate >= 0x40  && nDataRate <= 0x4f) {
 136                 is40MHz = 1;
 137                 isShortGI = 1;
 138         }
 139         return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate & 0xf];
 140 }
 141
 142 bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
 143 {
 144         bool                    retValue = false;
 145         struct rtllib_network *net = &ieee->current_network;
 146
 147         if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 148             (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 149             (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 150             (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 151             (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 152             (net->ralink_cap_exist))
 153                 retValue = true;
 154         else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 155                  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 156                  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
 157                 (net->broadcom_cap_exist))
 158                 retValue = true;
 159         else if (net->bssht.bd_rt2rt_aggregation)
 160                 retValue = true;
 161         else
 162                 retValue = false;
 163
 164         return retValue;
 165 }
 166
 167 static void HTIOTPeerDetermine(struct rtllib_device *ieee)
 168 {
 169         struct rt_hi_throughput *ht_info = ieee->ht_info;
 170         struct rtllib_network *net = &ieee->current_network;
 171
 172         if (net->bssht.bd_rt2rt_aggregation) {
 173                 ht_info->IOTPeer = HT_IOT_PEER_REALTEK;
 174                 if (net->bssht.rt2rt_ht_mode & RT_HT_CAP_USE_92SE)
 175                         ht_info->IOTPeer = HT_IOT_PEER_REALTEK_92SE;
 176                 if (net->bssht.rt2rt_ht_mode & RT_HT_CAP_USE_SOFTAP)
 177                         ht_info->IOTPeer = HT_IOT_PEER_92U_SOFTAP;
 178         } else if (net->broadcom_cap_exist) {
 179                 ht_info->IOTPeer = HT_IOT_PEER_BROADCOM;
 180         } else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
 181                  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
 182                  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)) {
 183                 ht_info->IOTPeer = HT_IOT_PEER_BROADCOM;
 184         } else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
 185                  (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
 186                  (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
 187                  (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
 188                  (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
 189                   net->ralink_cap_exist) {
 190                 ht_info->IOTPeer = HT_IOT_PEER_RALINK;
 191         } else if ((net->atheros_cap_exist) ||
 192                 (memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
 193                 (memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0)) {
 194                 ht_info->IOTPeer = HT_IOT_PEER_ATHEROS;
 195         } else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
 196                   net->cisco_cap_exist) {
 197                 ht_info->IOTPeer = HT_IOT_PEER_CISCO;
 198         } else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
 199                   net->marvell_cap_exist) {
 200                 ht_info->IOTPeer = HT_IOT_PEER_MARVELL;
 201         } else if (net->airgo_cap_exist) {
 202                 ht_info->IOTPeer = HT_IOT_PEER_AIRGO;
 203         } else {
 204                 ht_info->IOTPeer = HT_IOT_PEER_UNKNOWN;
 205         }
 206
 207         netdev_dbg(ieee->dev, "IOTPEER: %x\n", ht_info->IOTPeer);
 208 }
 209
 210 static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
 211 {
 212         return 0;
 213 }
 214
 215 static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
 216 {
 217         return false;
 218 }
 219
 220 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
 221 {
 222         return false;
 223 }
 224
 225 static u8 HTIOTActIsDisableEDCATurbo(struct rtllib_device *ieee,
 226                                      u8 *PeerMacAddr)
 227 {
 228         return false;
 229 }
 230
 231 static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
 232                                  struct rtllib_network *network)
 233 {
 234         u8      retValue = 0;
 235
 236         if (ieee->ht_info->IOTPeer == HT_IOT_PEER_BROADCOM)
 237                 retValue = 1;
 238
 239         return retValue;
 240 }
 241
 242 static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
 243 {
 244         u8      retValue = 0;
 245
 246         if (ieee->ht_info->IOTPeer == HT_IOT_PEER_BROADCOM)
 247                 retValue = 1;
 248         return retValue;
 249 }
 250
 251 static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
 252 {
 253         struct rt_hi_throughput *ht_info = ieee->ht_info;
 254
 255         ht_info->iot_ra_func &= HT_IOT_RAFUNC_DISABLE_ALL;
 256
 257         if (ht_info->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
 258                 ht_info->iot_ra_func |= HT_IOT_RAFUNC_PEER_1R;
 259
 260         if (ht_info->iot_action & HT_IOT_ACT_AMSDU_ENABLE)
 261                 ht_info->iot_ra_func |= HT_IOT_RAFUNC_TX_AMSDU;
 262 }
 263
 264 void HTResetIOTSetting(struct rt_hi_throughput *ht_info)
 265 {
 266         ht_info->iot_action = 0;
 267         ht_info->IOTPeer = HT_IOT_PEER_UNKNOWN;
 268         ht_info->iot_ra_func = 0;
 269 }
 270
 271 void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
 272                                   u8 *len, u8 IsEncrypt, bool bAssoc)
 273 {
 274         struct rt_hi_throughput *pHT = ieee->ht_info;
 275         struct ht_capab_ele *pCapELE = NULL;
 276
 277         if (!posHTCap || !pHT) {
 278                 netdev_warn(ieee->dev,
 279                             "%s(): posHTCap and ht_info are null\n", __func__);
 280                 return;
 281         }
 282         memset(posHTCap, 0, *len);
 283
 284         if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
 285                 static const u8 EWC11NHTCap[] = { 0x00, 0x90, 0x4c, 0x33 };
 286
 287                 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
 288                 pCapELE = (struct ht_capab_ele *)&posHTCap[4];
 289                 *len = 30 + 2;
 290         } else {
 291                 pCapELE = (struct ht_capab_ele *)posHTCap;
 292                 *len = 26 + 2;
 293         }
 294
 295         pCapELE->AdvCoding              = 0;
 296         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 297                 pCapELE->ChlWidth = 0;
 298         else
 299                 pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
 300
 301         pCapELE->MimoPwrSave            = pHT->self_mimo_ps;
 302         pCapELE->GreenField             = 0;
 303         pCapELE->ShortGI20Mhz           = 1;
 304         pCapELE->ShortGI40Mhz           = 1;
 305
 306         pCapELE->TxSTBC                 = 1;
 307         pCapELE->RxSTBC                 = 0;
 308         pCapELE->DelayBA                = 0;
 309         pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
 310         pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
 311         pCapELE->PSMP = 0;
 312         pCapELE->LSigTxopProtect = 0;
 313
 314         netdev_dbg(ieee->dev,
 315                    "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n",
 316                    pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
 317
 318         if (IsEncrypt) {
 319                 pCapELE->MPDUDensity    = 7;
 320                 pCapELE->MaxRxAMPDUFactor       = 2;
 321         } else {
 322                 pCapELE->MaxRxAMPDUFactor       = 3;
 323                 pCapELE->MPDUDensity    = 0;
 324         }
 325
 326         memcpy(pCapELE->MCS, ieee->reg_dot11ht_oper_rate_set, 16);
 327         memset(&pCapELE->ExtHTCapInfo, 0, 2);
 328         memset(pCapELE->TxBFCap, 0, 4);
 329
 330         pCapELE->ASCap = 0;
 331
 332         if (bAssoc) {
 333                 if (pHT->iot_action & HT_IOT_ACT_DISABLE_MCS15)
 334                         pCapELE->MCS[1] &= 0x7f;
 335
 336                 if (pHT->iot_action & HT_IOT_ACT_DISABLE_MCS14)
 337                         pCapELE->MCS[1] &= 0xbf;
 338
 339                 if (pHT->iot_action & HT_IOT_ACT_DISABLE_ALL_2SS)
 340                         pCapELE->MCS[1] &= 0x00;
 341
 342                 if (pHT->iot_action & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
 343                         pCapELE->ShortGI40Mhz           = 0;
 344
 345                 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
 346                         pCapELE->ChlWidth = 0;
 347                         pCapELE->MCS[1] = 0;
 348                 }
 349         }
 350 }
 351
 352 void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
 353                             u8 *len, u8 IsEncrypt)
 354 {
 355         struct rt_hi_throughput *pHT = ieee->ht_info;
 356         struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
 357
 358         if (!posHTInfo || !pHTInfoEle) {
 359                 netdev_warn(ieee->dev,
 360                             "%s(): posHTInfo and pHTInfoEle are null\n",
 361                             __func__);
 362                 return;
 363         }
 364
 365         memset(posHTInfo, 0, *len);
 366         if ((ieee->iw_mode == IW_MODE_ADHOC) ||
 367             (ieee->iw_mode == IW_MODE_MASTER)) {
 368                 pHTInfoEle->ControlChl  = ieee->current_network.channel;
 369                 pHTInfoEle->ExtChlOffset = ((!pHT->bRegBW40MHz) ?
 370                                             HT_EXTCHNL_OFFSET_NO_EXT :
 371                                             (ieee->current_network.channel <= 6)
 372                                             ? HT_EXTCHNL_OFFSET_UPPER :
 373                                             HT_EXTCHNL_OFFSET_LOWER);
 374                 pHTInfoEle->RecommemdedTxWidth  = pHT->bRegBW40MHz;
 375                 pHTInfoEle->RIFS                        = 0;
 376                 pHTInfoEle->PSMPAccessOnly              = 0;
 377                 pHTInfoEle->SrvIntGranularity           = 0;
 378                 pHTInfoEle->OptMode                     = pHT->current_op_mode;
 379                 pHTInfoEle->NonGFDevPresent             = 0;
 380                 pHTInfoEle->DualBeacon                  = 0;
 381                 pHTInfoEle->SecondaryBeacon             = 0;
 382                 pHTInfoEle->LSigTxopProtectFull         = 0;
 383                 pHTInfoEle->PcoActive                   = 0;
 384                 pHTInfoEle->PcoPhase                    = 0;
 385
 386                 memset(pHTInfoEle->BasicMSC, 0, 16);
 387
 388                 *len = 22 + 2;
 389
 390         } else {
 391                 *len = 0;
 392         }
 393 }
 394
 395 void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
 396                                 u8 *len)
 397 {
 398         if (!posRT2RTAgg) {
 399                 netdev_warn(ieee->dev, "%s(): posRT2RTAgg is null\n", __func__);
 400                 return;
 401         }
 402         memset(posRT2RTAgg, 0, *len);
 403         *posRT2RTAgg++ = 0x00;
 404         *posRT2RTAgg++ = 0xe0;
 405         *posRT2RTAgg++ = 0x4c;
 406         *posRT2RTAgg++ = 0x02;
 407         *posRT2RTAgg++ = 0x01;
 408
 409         *posRT2RTAgg = 0x30;
 410
 411         if (ieee->bSupportRemoteWakeUp)
 412                 *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
 413
 414         *len = 6 + 2;
 415 }
 416
 417 static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
 418 {
 419         u8 i;
 420
 421         if (!pOperateMCS) {
 422                 netdev_warn(ieee->dev, "%s(): pOperateMCS is null\n", __func__);
 423                 return false;
 424         }
 425
 426         switch (ieee->mode) {
 427         case IEEE_A:
 428         case IEEE_B:
 429         case IEEE_G:
 430                 for (i = 0; i <= 15; i++)
 431                         pOperateMCS[i] = 0;
 432                 break;
 433         case IEEE_N_24G:
 434         case IEEE_N_5G:
 435                 pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
 436                 pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
 437                 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
 438                 break;
 439         default:
 440                 break;
 441         }
 442
 443         return true;
 444 }
 445
 446 u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 447                        u8 *pMCSFilter)
 448 {
 449         u8              i, j;
 450         u8              bitMap;
 451         u8              mcsRate = 0;
 452         u8              availableMcsRate[16];
 453
 454         if (!pMCSRateSet || !pMCSFilter) {
 455                 netdev_warn(ieee->dev,
 456                             "%s(): pMCSRateSet and pMCSFilter are null\n",
 457                             __func__);
 458                 return false;
 459         }
 460         for (i = 0; i < 16; i++)
 461                 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
 462
 463         for (i = 0; i < 16; i++) {
 464                 if (availableMcsRate[i] != 0)
 465                         break;
 466         }
 467         if (i == 16)
 468                 return false;
 469
 470         for (i = 0; i < 16; i++) {
 471                 if (availableMcsRate[i] != 0) {
 472                         bitMap = availableMcsRate[i];
 473                         for (j = 0; j < 8; j++) {
 474                                 if ((bitMap % 2) != 0) {
 475                                         if (HTMcsToDataRate(ieee, (8 * i + j)) >
 476                                             HTMcsToDataRate(ieee, mcsRate))
 477                                                 mcsRate = 8 * i + j;
 478                                 }
 479                                 bitMap >>= 1;
 480                         }
 481                 }
 482         }
 483         return mcsRate | 0x80;
 484 }
 485
 486 static u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS,
 487                           u8 *pOperateMCS)
 488 {
 489         u8 i;
 490
 491         for (i = 0; i <= 15; i++)
 492                 pOperateMCS[i] = ieee->reg_dot11tx_ht_oper_rate_set[i] &
 493                                  pSupportMCS[i];
 494
 495         HT_PickMCSRate(ieee, pOperateMCS);
 496
 497         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 498                 pOperateMCS[1] = 0;
 499
 500         for (i = 2; i <= 15; i++)
 501                 pOperateMCS[i] = 0;
 502
 503         return true;
 504 }
 505
 506 void HTSetConnectBwMode(struct rtllib_device *ieee,
 507                         enum ht_channel_width bandwidth,
 508                         enum ht_extchnl_offset Offset);
 509
 510 void HTOnAssocRsp(struct rtllib_device *ieee)
 511 {
 512         struct rt_hi_throughput *ht_info = ieee->ht_info;
 513         struct ht_capab_ele *pPeerHTCap = NULL;
 514         struct ht_info_ele *pPeerHTInfo = NULL;
 515         u16 nMaxAMSDUSize = 0;
 516         u8 *pMcsFilter = NULL;
 517
 518         static const u8 EWC11NHTCap[] = { 0x00, 0x90, 0x4c, 0x33 };
 519         static const u8 EWC11NHTInfo[] = { 0x00, 0x90, 0x4c, 0x34 };
 520
 521         if (!ht_info->bCurrentHTSupport) {
 522                 netdev_warn(ieee->dev, "%s(): HT_DISABLE\n", __func__);
 523                 return;
 524         }
 525         netdev_dbg(ieee->dev, "%s(): HT_ENABLE\n", __func__);
 526
 527         if (!memcmp(ht_info->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
 528                 pPeerHTCap = (struct ht_capab_ele *)(&ht_info->PeerHTCapBuf[4]);
 529         else
 530                 pPeerHTCap = (struct ht_capab_ele *)(ht_info->PeerHTCapBuf);
 531
 532         if (!memcmp(ht_info->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
 533                 pPeerHTInfo = (struct ht_info_ele *)
 534                              (&ht_info->PeerHTInfoBuf[4]);
 535         else
 536                 pPeerHTInfo = (struct ht_info_ele *)(ht_info->PeerHTInfoBuf);
 537
 538 #ifdef VERBOSE_DEBUG
 539         print_hex_dump_bytes("%s: ", __func__, DUMP_PREFIX_NONE,
 540                              pPeerHTCap, sizeof(struct ht_capab_ele));
 541 #endif
 542         HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
 543                            (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
 544         ht_info->cur_tx_bw40mhz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
 545                                  true : false);
 546
 547         ht_info->bCurShortGI20MHz = ((ht_info->bRegShortGI20MHz) ?
 548                                     ((pPeerHTCap->ShortGI20Mhz == 1) ?
 549                                     true : false) : false);
 550         ht_info->bCurShortGI40MHz = ((ht_info->bRegShortGI40MHz) ?
 551                                      ((pPeerHTCap->ShortGI40Mhz == 1) ?
 552                                      true : false) : false);
 553
 554         ht_info->bCurSuppCCK = ((ht_info->bRegSuppCCK) ?
 555                                ((pPeerHTCap->DssCCk == 1) ? true :
 556                                false) : false);
 557
 558         ht_info->bCurrent_AMSDU_Support = ht_info->bAMSDU_Support;
 559
 560         nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
 561
 562         if (ht_info->nAMSDU_MaxSize > nMaxAMSDUSize)
 563                 ht_info->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
 564         else
 565                 ht_info->nCurrent_AMSDU_MaxSize = ht_info->nAMSDU_MaxSize;
 566
 567         ht_info->bCurrentAMPDUEnable = ht_info->bAMPDUEnable;
 568         if (ieee->rtllib_ap_sec_type &&
 569             (ieee->rtllib_ap_sec_type(ieee) & (SEC_ALG_WEP | SEC_ALG_TKIP))) {
 570                 if ((ht_info->IOTPeer == HT_IOT_PEER_ATHEROS) ||
 571                     (ht_info->IOTPeer == HT_IOT_PEER_UNKNOWN))
 572                         ht_info->bCurrentAMPDUEnable = false;
 573         }
 574
 575         if (!ht_info->reg_rt2rt_aggregation) {
 576                 if (ht_info->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
 577                         ht_info->CurrentAMPDUFactor =
 578                                                  pPeerHTCap->MaxRxAMPDUFactor;
 579                 else
 580                         ht_info->CurrentAMPDUFactor = ht_info->AMPDU_Factor;
 581
 582         } else {
 583                 if (ieee->current_network.bssht.bd_rt2rt_aggregation) {
 584                         if (ieee->pairwise_key_type != KEY_TYPE_NA)
 585                                 ht_info->CurrentAMPDUFactor =
 586                                                  pPeerHTCap->MaxRxAMPDUFactor;
 587                         else
 588                                 ht_info->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
 589                 } else {
 590                         ht_info->CurrentAMPDUFactor = min_t(u32, pPeerHTCap->MaxRxAMPDUFactor,
 591                                                             HT_AGG_SIZE_32K);
 592                 }
 593         }
 594         ht_info->current_mpdu_density = max_t(u8, ht_info->MPDU_Density,
 595                                               pPeerHTCap->MPDUDensity);
 596         if (ht_info->iot_action & HT_IOT_ACT_TX_USE_AMSDU_8K) {
 597                 ht_info->bCurrentAMPDUEnable = false;
 598                 ht_info->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
 599         }
 600         ht_info->cur_rx_reorder_enable = ht_info->reg_rx_reorder_enable;
 601
 602         if (pPeerHTCap->MCS[0] == 0)
 603                 pPeerHTCap->MCS[0] = 0xff;
 604
 605         HTIOTActDetermineRaFunc(ieee, ((pPeerHTCap->MCS[1]) != 0));
 606
 607         HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11ht_oper_rate_set);
 608
 609         ht_info->peer_mimo_ps = pPeerHTCap->MimoPwrSave;
 610         if (ht_info->peer_mimo_ps == MIMO_PS_STATIC)
 611                 pMcsFilter = MCS_FILTER_1SS;
 612         else
 613                 pMcsFilter = MCS_FILTER_ALL;
 614         ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 615                                                        ieee->dot11ht_oper_rate_set,
 616                                                        pMcsFilter);
 617         ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 618
 619         ht_info->current_op_mode = pPeerHTInfo->OptMode;
 620 }
 621
 622 void HTInitializeHTInfo(struct rtllib_device *ieee)
 623 {
 624         struct rt_hi_throughput *ht_info = ieee->ht_info;
 625
 626         ht_info->bCurrentHTSupport = false;
 627
 628         ht_info->bCurBW40MHz = false;
 629         ht_info->cur_tx_bw40mhz = false;
 630
 631         ht_info->bCurShortGI20MHz = false;
 632         ht_info->bCurShortGI40MHz = false;
 633         ht_info->forced_short_gi = false;
 634
 635         ht_info->bCurSuppCCK = true;
 636
 637         ht_info->bCurrent_AMSDU_Support = false;
 638         ht_info->nCurrent_AMSDU_MaxSize = ht_info->nAMSDU_MaxSize;
 639         ht_info->current_mpdu_density = ht_info->MPDU_Density;
 640         ht_info->CurrentAMPDUFactor = ht_info->AMPDU_Factor;
 641
 642         memset((void *)(&ht_info->SelfHTCap), 0,
 643                sizeof(ht_info->SelfHTCap));
 644         memset((void *)(&ht_info->SelfHTInfo), 0,
 645                sizeof(ht_info->SelfHTInfo));
 646         memset((void *)(&ht_info->PeerHTCapBuf), 0,
 647                sizeof(ht_info->PeerHTCapBuf));
 648         memset((void *)(&ht_info->PeerHTInfoBuf), 0,
 649                sizeof(ht_info->PeerHTInfoBuf));
 650
 651         ht_info->sw_bw_in_progress = false;
 652
 653         ht_info->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
 654
 655         ht_info->current_rt2rt_aggregation = false;
 656         ht_info->current_rt2rt_long_slot_time = false;
 657         ht_info->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 658
 659         ht_info->IOTPeer = 0;
 660         ht_info->iot_action = 0;
 661         ht_info->iot_ra_func = 0;
 662
 663         {
 664                 u8 *RegHTSuppRateSets = &ieee->reg_ht_supp_rate_set[0];
 665
 666                 RegHTSuppRateSets[0] = 0xFF;
 667                 RegHTSuppRateSets[1] = 0xFF;
 668                 RegHTSuppRateSets[4] = 0x01;
 669         }
 670 }
 671
 672 void HTInitializeBssDesc(struct bss_ht *pBssHT)
 673 {
 674         pBssHT->bd_support_ht = false;
 675         memset(pBssHT->bd_ht_cap_buf, 0, sizeof(pBssHT->bd_ht_cap_buf));
 676         pBssHT->bd_ht_cap_len = 0;
 677         memset(pBssHT->bd_ht_info_buf, 0, sizeof(pBssHT->bd_ht_info_buf));
 678         pBssHT->bd_ht_info_len = 0;
 679
 680         pBssHT->bd_ht_spec_ver = HT_SPEC_VER_IEEE;
 681
 682         pBssHT->bd_rt2rt_aggregation = false;
 683         pBssHT->bd_rt2rt_long_slot_time = false;
 684         pBssHT->rt2rt_ht_mode = (enum rt_ht_capability)0;
 685 }
 686
 687 void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
 688                                    struct rtllib_network *pNetwork)
 689 {
 690         struct rt_hi_throughput *ht_info = ieee->ht_info;
 691         u8      bIOTAction = 0;
 692
 693         /* unmark enable_ht flag here is the same reason why unmarked in
 694          * function rtllib_softmac_new_net. WB 2008.09.10
 695          */
 696         if (pNetwork->bssht.bd_support_ht) {
 697                 ht_info->bCurrentHTSupport = true;
 698                 ht_info->ePeerHTSpecVer = pNetwork->bssht.bd_ht_spec_ver;
 699
 700                 if (pNetwork->bssht.bd_ht_cap_len > 0 &&
 701                     pNetwork->bssht.bd_ht_cap_len <= sizeof(ht_info->PeerHTCapBuf))
 702                         memcpy(ht_info->PeerHTCapBuf,
 703                                pNetwork->bssht.bd_ht_cap_buf,
 704                                pNetwork->bssht.bd_ht_cap_len);
 705
 706                 if (pNetwork->bssht.bd_ht_info_len > 0 &&
 707                     pNetwork->bssht.bd_ht_info_len <=
 708                     sizeof(ht_info->PeerHTInfoBuf))
 709                         memcpy(ht_info->PeerHTInfoBuf,
 710                                pNetwork->bssht.bd_ht_info_buf,
 711                                pNetwork->bssht.bd_ht_info_len);
 712
 713                 if (ht_info->reg_rt2rt_aggregation) {
 714                         ht_info->current_rt2rt_aggregation =
 715                                  pNetwork->bssht.bd_rt2rt_aggregation;
 716                         ht_info->current_rt2rt_long_slot_time =
 717                                  pNetwork->bssht.bd_rt2rt_long_slot_time;
 718                         ht_info->RT2RT_HT_Mode = pNetwork->bssht.rt2rt_ht_mode;
 719                 } else {
 720                         ht_info->current_rt2rt_aggregation = false;
 721                         ht_info->current_rt2rt_long_slot_time = false;
 722                         ht_info->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 723                 }
 724
 725                 HTIOTPeerDetermine(ieee);
 726
 727                 ht_info->iot_action = 0;
 728                 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
 729                 if (bIOTAction)
 730                         ht_info->iot_action |= HT_IOT_ACT_DISABLE_MCS14;
 731
 732                 bIOTAction = HTIOTActIsDisableMCS15(ieee);
 733                 if (bIOTAction)
 734                         ht_info->iot_action |= HT_IOT_ACT_DISABLE_MCS15;
 735
 736                 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee);
 737                 if (bIOTAction)
 738                         ht_info->iot_action |= HT_IOT_ACT_DISABLE_ALL_2SS;
 739
 740                 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
 741                 if (bIOTAction)
 742                         ht_info->iot_action |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
 743
 744                 bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, pNetwork);
 745                 if (bIOTAction)
 746                         ht_info->iot_action |= HT_IOT_ACT_MGNT_USE_CCK_6M;
 747                 bIOTAction = HTIOTActIsCCDFsync(ieee);
 748                 if (bIOTAction)
 749                         ht_info->iot_action |= HT_IOT_ACT_CDD_FSYNC;
 750         } else {
 751                 ht_info->bCurrentHTSupport = false;
 752                 ht_info->current_rt2rt_aggregation = false;
 753                 ht_info->current_rt2rt_long_slot_time = false;
 754                 ht_info->RT2RT_HT_Mode = (enum rt_ht_capability)0;
 755
 756                 ht_info->iot_action = 0;
 757                 ht_info->iot_ra_func = 0;
 758         }
 759 }
 760
 761 void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
 762                                      struct rtllib_network *pNetwork)
 763 {
 764         struct rt_hi_throughput *ht_info = ieee->ht_info;
 765         struct ht_info_ele *pPeerHTInfo =
 766                  (struct ht_info_ele *)pNetwork->bssht.bd_ht_info_buf;
 767
 768         if (ht_info->bCurrentHTSupport) {
 769                 if (pNetwork->bssht.bd_ht_info_len != 0)
 770                         ht_info->current_op_mode = pPeerHTInfo->OptMode;
 771         }
 772 }
 773 EXPORT_SYMBOL(HT_update_self_and_peer_setting);
 774
 775 void HTUseDefaultSetting(struct rtllib_device *ieee)
 776 {
 777         struct rt_hi_throughput *ht_info = ieee->ht_info;
 778
 779         if (ht_info->enable_ht) {
 780                 ht_info->bCurrentHTSupport = true;
 781                 ht_info->bCurSuppCCK = ht_info->bRegSuppCCK;
 782
 783                 ht_info->bCurBW40MHz = ht_info->bRegBW40MHz;
 784                 ht_info->bCurShortGI20MHz = ht_info->bRegShortGI20MHz;
 785
 786                 ht_info->bCurShortGI40MHz = ht_info->bRegShortGI40MHz;
 787
 788                 if (ieee->iw_mode == IW_MODE_ADHOC)
 789                         ieee->current_network.qos_data.active =
 790                                  ieee->current_network.qos_data.supported;
 791                 ht_info->bCurrent_AMSDU_Support = ht_info->bAMSDU_Support;
 792                 ht_info->nCurrent_AMSDU_MaxSize = ht_info->nAMSDU_MaxSize;
 793
 794                 ht_info->bCurrentAMPDUEnable = ht_info->bAMPDUEnable;
 795                 ht_info->CurrentAMPDUFactor = ht_info->AMPDU_Factor;
 796
 797                 ht_info->current_mpdu_density = ht_info->current_mpdu_density;
 798
 799                 HTFilterMCSRate(ieee, ieee->reg_dot11tx_ht_oper_rate_set,
 800                                 ieee->dot11ht_oper_rate_set);
 801                 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
 802                                                                ieee->dot11ht_oper_rate_set,
 803                                                                MCS_FILTER_ALL);
 804                 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
 805
 806         } else {
 807                 ht_info->bCurrentHTSupport = false;
 808         }
 809 }
 810
 811 u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
 812 {
 813         if (ieee->ht_info->bCurrentHTSupport) {
 814                 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
 815                         netdev_dbg(ieee->dev, "HT CONTROL FILED EXIST!!\n");
 816                         return true;
 817                 }
 818         }
 819         return false;
 820 }
 821
 822 static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
 823 {
 824         struct rt_hi_throughput *ht_info = ieee->ht_info;
 825
 826         if (ht_info->bCurBW40MHz) {
 827                 if (ht_info->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
 828                         ieee->set_chan(ieee->dev,
 829                                        ieee->current_network.channel + 2);
 830                 else if (ht_info->CurSTAExtChnlOffset ==
 831                          HT_EXTCHNL_OFFSET_LOWER)
 832                         ieee->set_chan(ieee->dev,
 833                                        ieee->current_network.channel - 2);
 834                 else
 835                         ieee->set_chan(ieee->dev,
 836                                        ieee->current_network.channel);
 837
 838                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
 839                                        ht_info->CurSTAExtChnlOffset);
 840         } else {
 841                 ieee->set_chan(ieee->dev, ieee->current_network.channel);
 842                 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20,
 843                                        HT_EXTCHNL_OFFSET_NO_EXT);
 844         }
 845
 846         ht_info->sw_bw_in_progress = false;
 847 }
 848
 849 void HTSetConnectBwMode(struct rtllib_device *ieee,
 850                         enum ht_channel_width bandwidth,
 851                         enum ht_extchnl_offset Offset)
 852 {
 853         struct rt_hi_throughput *ht_info = ieee->ht_info;
 854
 855         if (!ht_info->bRegBW40MHz)
 856                 return;
 857
 858         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
 859                 bandwidth = HT_CHANNEL_WIDTH_20;
 860
 861         if (ht_info->sw_bw_in_progress) {
 862                 pr_info("%s: sw_bw_in_progress!!\n", __func__);
 863                 return;
 864         }
 865         if (bandwidth == HT_CHANNEL_WIDTH_20_40) {
 866                 if (ieee->current_network.channel < 2 &&
 867                     Offset == HT_EXTCHNL_OFFSET_LOWER)
 868                         Offset = HT_EXTCHNL_OFFSET_NO_EXT;
 869                 if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
 870                     Offset == HT_EXTCHNL_OFFSET_LOWER) {
 871                         ht_info->bCurBW40MHz = true;
 872                         ht_info->CurSTAExtChnlOffset = Offset;
 873                 } else {
 874                         ht_info->bCurBW40MHz = false;
 875                         ht_info->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 876                 }
 877         } else {
 878                 ht_info->bCurBW40MHz = false;
 879                 ht_info->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
 880         }
 881
 882         netdev_dbg(ieee->dev, "%s():ht_info->bCurBW40MHz:%x\n", __func__,
 883                    ht_info->bCurBW40MHz);
 884
 885         ht_info->sw_bw_in_progress = true;
 886
 887         HTSetConnectBwModeCallback(ieee);
 888 }