drivers/staging/rtl8192e/ieee80211/rtl819x_HTProc.c

   1
   2 //As this function is mainly ported from Windows driver, so leave the name little changed. If any confusion caused, tell me. Created by WB. 2008.05.08
   3 #include "ieee80211.h"
   4 #include "rtl819x_HT.h"
   5 u8 MCS_FILTER_ALL[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
   6
   7 u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
   8
   9 u16 MCS_DATA_RATE[2][2][77] =
  10         {       {       {13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78 ,104, 156, 208, 234, 260,
  11                         39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416, 468, 520,
  12                         0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182, 182, 208, 156, 195,
  13                         195, 234, 273, 273, 312, 130, 156, 181, 156, 181, 208, 234, 208, 234, 260, 260,
  14                         286, 195, 234, 273, 234, 273, 312, 351, 312, 351, 390, 390, 429},                       // Long GI, 20MHz
  15                         {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
  16                         43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520, 578,
  17                         0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231, 173, 217,
  18                         217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260, 231, 260, 289, 289,
  19                         318, 217, 260, 303, 260, 303, 347, 390, 347, 390, 433, 433, 477}        },              // Short GI, 20MHz
  20                 {       {27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486, 540,
  21                         81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648, 864, 972, 1080,
  22                         12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324, 378, 378, 432, 324, 405,
  23                         405, 486, 567, 567, 648, 270, 324, 378, 324, 378, 432, 486, 432, 486, 540, 540,
  24                         594, 405, 486, 567, 486, 567, 648, 729, 648, 729, 810, 810, 891},       // Long GI, 40MHz
  25                         {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540, 600,
  26                         90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720, 960, 1080, 1200,
  27                         13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360, 420, 420, 480, 360, 450,
  28                         450, 540, 630, 630, 720, 300, 360, 420, 360, 420, 480, 540, 480, 540, 600, 600,
  29                         660, 450, 540, 630, 540, 630, 720, 810, 720, 810, 900, 900, 990}        }       // Short GI, 40MHz
  30         };
  31
  32 static const u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
  33 static const u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
  34 static const u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
  35 //static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f};
  36 static const u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
  37 static const u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
  38 static const u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
  39 static const u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
  40 static const u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
  41 static const u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0};
  42 static const u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
  43 static const u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
  44
  45 // 2008/04/01 MH For Cisco G mode RX TP We need to change FW duration. Should we put the
  46 // code in other place??
  47 //static u8 WIFI_CISCO_G_AP[3] = {0x00, 0x40, 0x96};
  48 /********************************************************************************************************************
  49  *function:  This function update default settings in pHTInfo structure
  50  *   input:  PRT_HIGH_THROUGHPUT        pHTInfo
  51  *  output:  none
  52  *  return:  none
  53  *  notice:  These value need be modified if any changes.
  54  * *****************************************************************************************************************/
  55 void HTUpdateDefaultSetting(struct ieee80211_device* ieee)
  56 {
  57         PRT_HIGH_THROUGHPUT     pHTInfo = ieee->pHTInfo;
  58
  59         // ShortGI support
  60         pHTInfo->bRegShortGI20MHz= 1;
  61         pHTInfo->bRegShortGI40MHz= 1;
  62
  63         // 40MHz channel support
  64         pHTInfo->bRegBW40MHz = 1;
  65
  66         // CCK rate support in 40MHz channel
  67         if(pHTInfo->bRegBW40MHz)
  68                 pHTInfo->bRegSuppCCK = 1;
  69         else
  70                 pHTInfo->bRegSuppCCK = true;
  71
  72         // AMSDU related
  73         pHTInfo->nAMSDU_MaxSize = 7935UL;
  74         pHTInfo->bAMSDU_Support = 0;
  75
  76         // AMPDU related
  77         pHTInfo->bAMPDUEnable = 1;
  78         pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k)
  79         pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec
  80
  81         // MIMO Power Save
  82         pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.)
  83         if(pHTInfo->SelfMimoPs == 2)
  84                 pHTInfo->SelfMimoPs = 3;
  85         // 8190 only. Assign rate operation mode to firmware
  86         ieee->bTxDisableRateFallBack = 0;
  87         ieee->bTxUseDriverAssingedRate = 0;
  88
  89 #ifdef  TO_DO_LIST
  90         // 8190 only. Assign duration operation mode to firmware
  91         pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur;
  92 #endif
  93         // 8190 only, Realtek proprietary aggregation mode
  94         // Set MPDUDensity=2,   1: Set MPDUDensity=2(32k)  for Realtek AP and set MPDUDensity=0(8k) for others
  95         pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2,   1: Set MPDUDensity=2(32k)  for Realtek AP and set MPDUDensity=0(8k) for others
  96
  97         // For Rx Reorder Control
  98         pHTInfo->bRegRxReorderEnable = 1;
  99         pHTInfo->RxReorderWinSize = 64;
 100         pHTInfo->RxReorderPendingTime = 30;
 101
 102 #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
 103         pHTInfo->UsbTxAggrNum = 4;
 104 #endif
 105 #ifdef USB_RX_AGGREGATION_SUPPORT
 106         pHTInfo->UsbRxFwAggrEn = 1;
 107         pHTInfo->UsbRxFwAggrPageNum = 24;
 108         pHTInfo->UsbRxFwAggrPacketNum = 8;
 109         pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us
 110 #endif
 111
 112
 113 }
 114 /********************************************************************************************************************
 115  *function:  This function print out each field on HT capability IE mainly from (Beacon/ProbeRsp/AssocReq)
 116  *   input:  u8*        CapIE       //Capability IE to be printed out
 117  *           u8*        TitleString //mainly print out caller function
 118  *  output:  none
 119  *  return:  none
 120  *  notice:  Driver should not print out this message by default.
 121  * *****************************************************************************************************************/
 122 void HTDebugHTCapability(u8* CapIE, u8* TitleString )
 123 {
 124
 125         static u8       EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};       // For 11n EWC definition, 2007.07.17, by Emily
 126         PHT_CAPABILITY_ELE              pCapELE;
 127
 128         if(!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap)))
 129         {
 130                 //EWC IE
 131                 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__);
 132                 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[4]);
 133         }else
 134                 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[0]);
 135
 136         IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Capability>. Called by %s\n", TitleString );
 137
 138         IEEE80211_DEBUG(IEEE80211_DL_HT,  "\tSupported Channel Width = %s\n", (pCapELE->ChlWidth)?"20MHz": "20/40MHz");
 139         IEEE80211_DEBUG(IEEE80211_DL_HT,  "\tSupport Short GI for 20M = %s\n", (pCapELE->ShortGI20Mhz)?"YES": "NO");
 140         IEEE80211_DEBUG(IEEE80211_DL_HT,  "\tSupport Short GI for 40M = %s\n", (pCapELE->ShortGI40Mhz)?"YES": "NO");
 141         IEEE80211_DEBUG(IEEE80211_DL_HT,  "\tSupport TX STBC = %s\n", (pCapELE->TxSTBC)?"YES": "NO");
 142         IEEE80211_DEBUG(IEEE80211_DL_HT,  "\tMax AMSDU Size = %s\n", (pCapELE->MaxAMSDUSize)?"3839": "7935");
 143         IEEE80211_DEBUG(IEEE80211_DL_HT,  "\tSupport CCK in 20/40 mode = %s\n", (pCapELE->DssCCk)?"YES": "NO");
 144         IEEE80211_DEBUG(IEEE80211_DL_HT,  "\tMax AMPDU Factor = %d\n", pCapELE->MaxRxAMPDUFactor);
 145         IEEE80211_DEBUG(IEEE80211_DL_HT,  "\tMPDU Density = %d\n", pCapELE->MPDUDensity);
 146         IEEE80211_DEBUG(IEEE80211_DL_HT,  "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n", pCapELE->MCS[0],\
 147                                 pCapELE->MCS[1], pCapELE->MCS[2], pCapELE->MCS[3], pCapELE->MCS[4]);
 148 }
 149 /********************************************************************************************************************
 150  *function:  This function print out each field on HT Information IE mainly from (Beacon/ProbeRsp)
 151  *   input:  u8*        InfoIE       //Capability IE to be printed out
 152  *           u8*        TitleString //mainly print out caller function
 153  *  output:  none
 154  *  return:  none
 155  *  notice:  Driver should not print out this message by default.
 156  * *****************************************************************************************************************/
 157 void HTDebugHTInfo(u8*  InfoIE, u8* TitleString)
 158 {
 159
 160         static u8       EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};      // For 11n EWC definition, 2007.07.17, by Emily
 161         PHT_INFORMATION_ELE             pHTInfoEle;
 162
 163         if(!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
 164         {
 165                 // Not EWC IE
 166                 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__);
 167                 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]);
 168         }else
 169                 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]);
 170
 171
 172         IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Information Element>. Called by %s\n", TitleString);
 173
 174         IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl);
 175         IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSenondary channel =");
 176         switch(pHTInfoEle->ExtChlOffset)
 177         {
 178                 case 0:
 179                         IEEE80211_DEBUG(IEEE80211_DL_HT, "Not Present\n");
 180                         break;
 181                 case 1:
 182                         IEEE80211_DEBUG(IEEE80211_DL_HT, "Upper channel\n");
 183                         break;
 184                 case 2:
 185                         IEEE80211_DEBUG(IEEE80211_DL_HT, "Reserved. Eooro!!!\n");
 186                         break;
 187                 case 3:
 188                         IEEE80211_DEBUG(IEEE80211_DL_HT, "Lower Channel\n");
 189                         break;
 190         }
 191         IEEE80211_DEBUG(IEEE80211_DL_HT, "\tRecommended channel width = %s\n", (pHTInfoEle->RecommemdedTxWidth)?"20Mhz": "40Mhz");
 192
 193         IEEE80211_DEBUG(IEEE80211_DL_HT, "\tOperation mode for protection = ");
 194         switch(pHTInfoEle->OptMode)
 195         {
 196                 case 0:
 197                         IEEE80211_DEBUG(IEEE80211_DL_HT, "No Protection\n");
 198                         break;
 199                 case 1:
 200                         IEEE80211_DEBUG(IEEE80211_DL_HT, "HT non-member protection mode\n");
 201                         break;
 202                 case 2:
 203                         IEEE80211_DEBUG(IEEE80211_DL_HT, "Suggest to open protection\n");
 204                         break;
 205                 case 3:
 206                         IEEE80211_DEBUG(IEEE80211_DL_HT, "HT mixed mode\n");
 207                         break;
 208         }
 209
 210         IEEE80211_DEBUG(IEEE80211_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x][%x]\n", pHTInfoEle->BasicMSC[0],\
 211                                 pHTInfoEle->BasicMSC[1], pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3], pHTInfoEle->BasicMSC[4]);
 212 }
 213
 214 /*
 215 *       Return:         true if station in half n mode and AP supports 40 bw
 216 */
 217 bool IsHTHalfNmode40Bandwidth(struct ieee80211_device* ieee)
 218 {
 219         bool                    retValue = false;
 220         PRT_HIGH_THROUGHPUT      pHTInfo = ieee->pHTInfo;
 221
 222         if(pHTInfo->bCurrentHTSupport == false )        // wireless is n mode
 223                 retValue = false;
 224         else if(pHTInfo->bRegBW40MHz == false)  // station supports 40 bw
 225                 retValue = false;
 226         else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee))  // station in half n mode
 227                 retValue = false;
 228         else if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ChlWidth) // ap support 40 bw
 229                 retValue = true;
 230         else
 231                 retValue = false;
 232
 233         return retValue;
 234 }
 235
 236 bool IsHTHalfNmodeSGI(struct ieee80211_device* ieee, bool is40MHz)
 237 {
 238         bool                    retValue = false;
 239         PRT_HIGH_THROUGHPUT      pHTInfo = ieee->pHTInfo;
 240
 241         if(pHTInfo->bCurrentHTSupport == false )        // wireless is n mode
 242                 retValue = false;
 243         else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee))  // station in half n mode
 244                 retValue = false;
 245         else if(is40MHz) // ap support 40 bw
 246         {
 247                 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI40Mhz) // ap support 40 bw short GI
 248                         retValue = true;
 249                 else
 250                         retValue = false;
 251         }
 252         else
 253         {
 254                 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI20Mhz) // ap support 40 bw short GI
 255                         retValue = true;
 256                 else
 257                         retValue = false;
 258         }
 259
 260         return retValue;
 261 }
 262
 263 u16 HTHalfMcsToDataRate(struct ieee80211_device* ieee,  u8      nMcsRate)
 264 {
 265
 266         u8      is40MHz;
 267         u8      isShortGI;
 268
 269         is40MHz  =  (IsHTHalfNmode40Bandwidth(ieee))?1:0;
 270         isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz))? 1:0;
 271
 272         return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)];
 273 }
 274
 275
 276 u16 HTMcsToDataRate( struct ieee80211_device* ieee, u8 nMcsRate)
 277 {
 278         PRT_HIGH_THROUGHPUT     pHTInfo = ieee->pHTInfo;
 279
 280         u8      is40MHz = (pHTInfo->bCurBW40MHz)?1:0;
 281         u8      isShortGI = (pHTInfo->bCurBW40MHz)?
 282                                                 ((pHTInfo->bCurShortGI40MHz)?1:0):
 283                                                 ((pHTInfo->bCurShortGI20MHz)?1:0);
 284         return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)];
 285 }
 286
 287 /********************************************************************************************************************
 288  *function:  This function returns current datarate.
 289  *   input:  struct ieee80211_device*   ieee
 290  *           u8                         nDataRate
 291  *  output:  none
 292  *  return:  tx rate
 293  *  notice:  quite unsure about how to use this function //wb
 294  * *****************************************************************************************************************/
 295 u16  TxCountToDataRate( struct ieee80211_device* ieee, u8 nDataRate)
 296 {
 297         //PRT_HIGH_THROUGHPUT   pHTInfo = ieee->pHTInfo;
 298         u16             CCKOFDMRate[12] = {0x02 , 0x04 , 0x0b , 0x16 , 0x0c , 0x12 , 0x18 , 0x24 , 0x30 , 0x48 , 0x60 , 0x6c};
 299         u8      is40MHz = 0;
 300         u8      isShortGI = 0;
 301
 302         if(nDataRate < 12)
 303         {
 304                 return CCKOFDMRate[nDataRate];
 305         }
 306         else
 307         {
 308                 if (nDataRate >= 0x10 && nDataRate <= 0x1f)//if(nDataRate > 11 && nDataRate < 28 )
 309                 {
 310                         is40MHz = 0;
 311                         isShortGI = 0;
 312
 313                       // nDataRate = nDataRate - 12;
 314                 }
 315                 else if(nDataRate >=0x20  && nDataRate <= 0x2f ) //(27, 44)
 316                 {
 317                         is40MHz = 1;
 318                         isShortGI = 0;
 319
 320                         //nDataRate = nDataRate - 28;
 321                 }
 322                 else if(nDataRate >= 0x30  && nDataRate <= 0x3f )  //(43, 60)
 323                 {
 324                         is40MHz = 0;
 325                         isShortGI = 1;
 326
 327                         //nDataRate = nDataRate - 44;
 328                 }
 329                 else if(nDataRate >= 0x40  && nDataRate <= 0x4f ) //(59, 76)
 330                 {
 331                         is40MHz = 1;
 332                         isShortGI = 1;
 333
 334                         //nDataRate = nDataRate - 60;
 335                 }
 336                 return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
 337         }
 338 }
 339
 340
 341
 342 bool IsHTHalfNmodeAPs(struct ieee80211_device* ieee)
 343 {
 344         bool                    retValue = false;
 345         struct ieee80211_network* net = &ieee->current_network;
 346 #if 0
 347         if(ieee->bHalfNMode == false)
 348                 retValue = false;
 349         else
 350 #endif
 351         if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) ||
 352                      (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) ||
 353                      (memcmp(net->bssid, PCI_RALINK, 3)==0) ||
 354                      (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) ||
 355                      (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) ||
 356                      (net->ralink_cap_exist))
 357                 retValue = true;
 358         else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) ||
 359                     (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
 360                     (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)||
 361                     //(memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) ||
 362                     (net->broadcom_cap_exist))
 363                   retValue = true;
 364         else if(net->bssht.bdRT2RTAggregation)
 365                 retValue = true;
 366         else
 367                 retValue = false;
 368
 369         return retValue;
 370 }
 371
 372 /********************************************************************************************************************
 373  *function:  This function returns peer IOT.
 374  *   input:  struct ieee80211_device*   ieee
 375  *  output:  none
 376  *  return:
 377  *  notice:
 378  * *****************************************************************************************************************/
 379 void HTIOTPeerDetermine(struct ieee80211_device* ieee)
 380 {
 381         PRT_HIGH_THROUGHPUT     pHTInfo = ieee->pHTInfo;
 382         struct ieee80211_network* net = &ieee->current_network;
 383         if(net->bssht.bdRT2RTAggregation)
 384                 pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
 385         else if(net->broadcom_cap_exist){
 386                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 387         }
 388         else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) ||
 389                         (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
 390                         (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)){//||
 391                         //(memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) ){
 392                 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
 393         }
 394         else if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) ||
 395                         (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) ||
 396                         (memcmp(net->bssid, PCI_RALINK, 3)==0) ||
 397                         (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) ||
 398                         (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) ||
 399                          net->ralink_cap_exist)
 400                 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
 401         else if((net->atheros_cap_exist )|| (memcmp(net->bssid, DLINK_ATHEROS, 3) == 0))
 402                 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
 403         else if(memcmp(net->bssid, CISCO_BROADCOM, 3)==0)
 404                 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
 405         else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
 406                         net->marvell_cap_exist){
 407                 pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL;
 408         }
 409         else
 410                 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 411
 412         IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer);
 413 }
 414 /********************************************************************************************************************
 415  *function:  Check whether driver should declare received rate up to MCS13 only since some chipset is not good
 416  *           at receiving MCS14~15 frame from some AP.
 417  *   input:  struct ieee80211_device*   ieee
 418  *           u8 *                       PeerMacAddr
 419  *  output:  none
 420  *  return:  return 1 if driver should declare MCS13 only(otherwise return 0)
 421   * *****************************************************************************************************************/
 422 u8 HTIOTActIsDisableMCS14(struct ieee80211_device* ieee, u8* PeerMacAddr)
 423 {
 424         u8 ret = 0;
 425 #if 0
 426         // Apply for 819u only
 427 #if (HAL_CODE_BASE==RTL8192 && DEV_BUS_TYPE==USB_INTERFACE)
 428         if((memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) ||
 429                 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)
 430             )
 431         {
 432                 ret = 1;
 433         }
 434
 435
 436         if(pHTInfo->bCurrentRT2RTAggregation)
 437         {
 438                 // The parameter of pHTInfo->bCurrentRT2RTAggregation must be decided previously
 439                 ret = 1;
 440         }
 441 #endif
 442 #endif
 443         return ret;
 444  }
 445
 446 u8 HTIOTActIsForcedCTS2Self(struct ieee80211_device *ieee, struct ieee80211_network *network)
 447 {
 448         u8      retValue = 0;
 449         //if(network->marvell_cap_exist)
 450         if(ieee->pHTInfo->IOTPeer == HT_IOT_PEER_MARVELL)
 451         {
 452                 retValue = 1;
 453         }
 454
 455         return retValue;
 456 }
 457
 458
 459 /**
 460 * Function:     HTIOTActIsDisableMCS15
 461 *
 462 * Overview:     Check whether driver should declare capability of receiving MCS15
 463 *
 464 * Input:
 465 *                       PADAPTER                Adapter,
 466 *
 467 * Output:               None
 468 * Return:       true if driver should disable MCS15
 469 * 2008.04.15    Emily
 470 */
 471 bool HTIOTActIsDisableMCS15(struct ieee80211_device* ieee)
 472 {
 473         bool retValue = false;
 474
 475 #ifdef TODO
 476         // Apply for 819u only
 477 #if (HAL_CODE_BASE==RTL8192)
 478
 479 #if (DEV_BUS_TYPE == USB_INTERFACE)
 480         // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15
 481         retValue = true;
 482 #elif (DEV_BUS_TYPE == PCI_INTERFACE)
 483         // Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12
 484 //      if(pBssDesc->bCiscoCapExist)
 485 //              retValue = false;
 486 //      else
 487                 retValue = false;
 488 #endif
 489 #endif
 490 #endif
 491         // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15
 492
 493         return retValue;
 494 }
 495
 496 /**
 497 * Function:     HTIOTActIsDisableMCSTwoSpatialStream
 498 *
 499 * Overview:     Check whether driver should declare capability of receiving All 2 ss packets
 500 *
 501 * Input:
 502 *                       PADAPTER                Adapter,
 503 *
 504 * Output:               None
 505 * Return:       true if driver should disable all two spatial stream packet
 506 * 2008.04.21    Emily
 507 */
 508 bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device* ieee, u8 *PeerMacAddr)
 509 {
 510         bool retValue = false;
 511
 512 #ifdef TODO
 513         // Apply for 819u only
 514 //#if (HAL_CODE_BASE==RTL8192)
 515
 516         //This rule only apply to Belkin(Ralink) AP
 517         if(IS_UNDER_11N_AES_MODE(Adapter))
 518         {
 519                 if((PlatformCompareMemory(PeerMacAddr, BELKINF5D8233V1_RALINK, 3)==0) ||
 520                                 (PlatformCompareMemory(PeerMacAddr, PCI_RALINK, 3)==0) ||
 521                                 (PlatformCompareMemory(PeerMacAddr, EDIMAX_RALINK, 3)==0))
 522                 {
 523                         //Set True to disable this function. Disable by default, Emily, 2008.04.23
 524                         retValue = false;
 525                 }
 526         }
 527
 528 //#endif
 529 #endif
 530         return retValue;
 531 }
 532
 533 /********************************************************************************************************************
 534  *function:  Check whether driver should disable EDCA turbo mode
 535  *   input:  struct ieee80211_device*   ieee
 536  *           u8*                        PeerMacAddr
 537  *  output:  none
 538  *  return:  return 1 if driver should disable EDCA turbo mode(otherwise return 0)
 539   * *****************************************************************************************************************/
 540 u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device*  ieee, u8* PeerMacAddr)
 541 {
 542         u8      retValue = false;       // default enable EDCA Turbo mode.
 543         // Set specific EDCA parameter for different AP in DM handler.
 544
 545         return retValue;
 546 #if 0
 547         if((memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0)||
 548                 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
 549                 (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)||
 550                 (memcmp(PeerMacAddr, NETGEAR834Bv2_BROADCOM, 3)==0))
 551
 552         {
 553                 retValue = 1;   //Linksys disable EDCA turbo mode
 554         }
 555
 556         return retValue;
 557 #endif
 558 }
 559
 560 /********************************************************************************************************************
 561  *function:  Check whether we need to use OFDM to sned MGNT frame for broadcom AP
 562  *   input:  struct ieee80211_network *network   //current network we live
 563  *  output:  none
 564  *  return:  return 1 if true
 565   * *****************************************************************************************************************/
 566 u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network)
 567 {
 568         u8      retValue = 0;
 569
 570         // 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP.
 571         // 2008/01/28 MH We must prevent that we select null bssid to link.
 572
 573         if(network->broadcom_cap_exist)
 574         {
 575                 retValue = 1;
 576         }
 577
 578         return retValue;
 579 }
 580
 581 u8 HTIOTActIsCCDFsync(u8* PeerMacAddr)
 582 {
 583         u8      retValue = 0;
 584         if(     (memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) ||
 585                 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) ||
 586                 (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0))
 587         {
 588                 retValue = 1;
 589         }
 590
 591         return retValue;
 592 }
 593
 594 //
 595 //  Send null data for to tell AP that we are awake.
 596 //
 597 bool
 598 HTIOTActIsNullDataPowerSaving(struct ieee80211_device* ieee,struct ieee80211_network *network)
 599 {
 600         bool    retValue = false;
 601
 602         PRT_HIGH_THROUGHPUT     pHTInfo = ieee->pHTInfo;
 603         {
 604                 if(pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM) // ||(pBssDesc->Vender == HT_IOT_PEER_ATHEROS && pBssDesc->SubTypeOfVender == HT_IOT_PEER_ATHEROS_DIR635))
 605                         return true;
 606
 607         }
 608         return retValue;
 609 }
 610
 611 void HTResetIOTSetting(
 612         PRT_HIGH_THROUGHPUT             pHTInfo
 613 )
 614 {
 615         pHTInfo->IOTAction = 0;
 616         pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
 617 }
 618
 619
 620 /********************************************************************************************************************
 621  *function:  Construct Capablility Element in Beacon... if HTEnable is turned on
 622  *   input:  struct ieee80211_device*   ieee
 623  *           u8*                        posHTCap //pointer to store Capability Ele
 624  *           u8*                        len //store length of CE
 625  *           u8                         IsEncrypt //whether encrypt, needed further
 626  *  output:  none
 627  *  return:  none
 628  *  notice:  posHTCap can't be null and should be initialized before.
 629   * *****************************************************************************************************************/
 630 void HTConstructCapabilityElement(struct ieee80211_device* ieee, u8* posHTCap, u8* len, u8 IsEncrypt)
 631 {
 632         PRT_HIGH_THROUGHPUT     pHT = ieee->pHTInfo;
 633         PHT_CAPABILITY_ELE      pCapELE = NULL;
 634         //u8 bIsDeclareMCS13;
 635
 636         if ((posHTCap == NULL) || (pHT == NULL))
 637         {
 638                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n");
 639                 return;
 640         }
 641         memset(posHTCap, 0, *len);
 642         if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
 643         {
 644                 u8      EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};       // For 11n EWC definition, 2007.07.17, by Emily
 645                 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
 646                 pCapELE = (PHT_CAPABILITY_ELE)&(posHTCap[4]);
 647         }else
 648         {
 649                 pCapELE = (PHT_CAPABILITY_ELE)posHTCap;
 650         }
 651
 652
 653         //HT capability info
 654         pCapELE->AdvCoding              = 0; // This feature is not supported now!!
 655         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee))
 656         {
 657                 pCapELE->ChlWidth = 0;
 658         }
 659         else
 660         {
 661                 pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
 662         }
 663
 664 //      pCapELE->ChlWidth               = (pHT->bRegBW40MHz?1:0);
 665         pCapELE->MimoPwrSave            = pHT->SelfMimoPs;
 666         pCapELE->GreenField             = 0; // This feature is not supported now!!
 667         pCapELE->ShortGI20Mhz           = 1; // We can receive Short GI!!
 668         pCapELE->ShortGI40Mhz           = 1; // We can receive Short GI!!
 669         //DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r",
 670                 //pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz);
 671         pCapELE->TxSTBC                 = 1;
 672         pCapELE->RxSTBC                 = 0;
 673         pCapELE->DelayBA                = 0;    // Do not support now!!
 674         pCapELE->MaxAMSDUSize   = (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0;
 675         pCapELE->DssCCk                 = ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0);
 676         pCapELE->PSMP                   = 0; // Do not support now!!
 677         pCapELE->LSigTxopProtect        = 0; // Do not support now!!
 678
 679
 680         //MAC HT parameters info
 681         // TODO: Nedd to take care of this part
 682         IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
 683
 684         if( IsEncrypt)
 685         {
 686                 pCapELE->MPDUDensity    = 7; // 8us
 687                 pCapELE->MaxRxAMPDUFactor       = 2; // 2 is for 32 K and 3 is 64K
 688         }
 689         else
 690         {
 691                 pCapELE->MaxRxAMPDUFactor       = 3; // 2 is for 32 K and 3 is 64K
 692                 pCapELE->MPDUDensity    = 0; // no density
 693         }
 694
 695         //Supported MCS set
 696         memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
 697         if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
 698                 pCapELE->MCS[1] &= 0x7f;
 699
 700         if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
 701                 pCapELE->MCS[1] &= 0xbf;
 702
 703         if(pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
 704                 pCapELE->MCS[1] &= 0x00;
 705
 706         // 2008.06.12
 707         // For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7.
 708         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee))
 709         {
 710                 int i;
 711                 for(i = 1; i< 16; i++)
 712                         pCapELE->MCS[i] = 0;
 713         }
 714
 715         //Extended HT Capability Info
 716         memset(&pCapELE->ExtHTCapInfo, 0, 2);
 717
 718
 719         //TXBF Capabilities
 720         memset(pCapELE->TxBFCap, 0, 4);
 721
 722         //Antenna Selection Capabilities
 723         pCapELE->ASCap = 0;
 724 //add 2 to give space for element ID and len when construct frames
 725         if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
 726                 *len = 30 + 2;
 727         else
 728                 *len = 26 + 2;
 729 }
 730 /********************************************************************************************************************
 731  *function:  Construct  Information Element in Beacon... if HTEnable is turned on
 732  *   input:  struct ieee80211_device*   ieee
 733  *           u8*                        posHTCap //pointer to store Information Ele
 734  *           u8*                        len   //store len of
 735  *           u8                         IsEncrypt //whether encrypt, needed further
 736  *  output:  none
 737  *  return:  none
 738  *  notice:  posHTCap can't be null and be initialized before. only AP and IBSS sta should do this
 739   * *****************************************************************************************************************/
 740 void HTConstructInfoElement(struct ieee80211_device* ieee, u8* posHTInfo, u8* len, u8 IsEncrypt)
 741 {
 742         PRT_HIGH_THROUGHPUT     pHT = ieee->pHTInfo;
 743         PHT_INFORMATION_ELE             pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo;
 744         if ((posHTInfo == NULL) || (pHTInfoEle == NULL))
 745         {
 746                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n");
 747                 return;
 748         }
 749
 750         memset(posHTInfo, 0, *len);
 751         if ( (ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) //ap mode is not currently supported
 752         {
 753                 pHTInfoEle->ControlChl                  = ieee->current_network.channel;
 754                 pHTInfoEle->ExtChlOffset                        = ((pHT->bRegBW40MHz == false)?HT_EXTCHNL_OFFSET_NO_EXT:
 755                                                                                         (ieee->current_network.channel<=6)?
 756                                                                                                 HT_EXTCHNL_OFFSET_UPPER:HT_EXTCHNL_OFFSET_LOWER);
 757                 pHTInfoEle->RecommemdedTxWidth  = pHT->bRegBW40MHz;
 758                 pHTInfoEle->RIFS                                        = 0;
 759                 pHTInfoEle->PSMPAccessOnly              = 0;
 760                 pHTInfoEle->SrvIntGranularity           = 0;
 761                 pHTInfoEle->OptMode                             = pHT->CurrentOpMode;
 762                 pHTInfoEle->NonGFDevPresent             = 0;
 763                 pHTInfoEle->DualBeacon                  = 0;
 764                 pHTInfoEle->SecondaryBeacon             = 0;
 765                 pHTInfoEle->LSigTxopProtectFull         = 0;
 766                 pHTInfoEle->PcoActive                           = 0;
 767                 pHTInfoEle->PcoPhase                            = 0;
 768
 769                 memset(pHTInfoEle->BasicMSC, 0, 16);
 770
 771
 772                 *len = 22 + 2; //same above
 773
 774         }
 775         else
 776         {
 777                 //STA should not generate High Throughput Information Element
 778                 *len = 0;
 779         }
 780 }
 781
 782 /*
 783   *  According to experiment, Realtek AP to STA (based on rtl8190) may achieve best performance
 784   *  if both STA and AP set limitation of aggregation size to 32K, that is, set AMPDU density to 2
 785   *  (Ref: IEEE 11n specification). However, if Realtek STA associates to other AP, STA should set
 786   *  limitation of aggregation size to 8K, otherwise, performance of traffic stream from STA to AP
 787   *  will be much less than the traffic stream from AP to STA if both of the stream runs concurrently
 788   *  at the same time.
 789   *
 790   *  Frame Format
 791   *  Element ID         Length          OUI                     Type1           Reserved
 792   *  1 byte                     1 byte          3 bytes         1 byte          1 byte
 793   *
 794   *  OUI                = 0x00, 0xe0, 0x4c,
 795   *  Type       = 0x02
 796   *  Reserved   = 0x00
 797   *
 798   *  2007.8.21 by Emily
 799 */
 800 /********************************************************************************************************************
 801  *function:  Construct  Information Element in Beacon... in RT2RT condition
 802  *   input:  struct ieee80211_device*   ieee
 803  *           u8*                        posRT2RTAgg //pointer to store Information Ele
 804  *           u8*                        len   //store len
 805  *  output:  none
 806  *  return:  none
 807  *  notice:
 808   * *****************************************************************************************************************/
 809 void HTConstructRT2RTAggElement(struct ieee80211_device* ieee, u8* posRT2RTAgg, u8* len)
 810 {
 811         if (posRT2RTAgg == NULL) {
 812                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n");
 813                 return;
 814         }
 815         memset(posRT2RTAgg, 0, *len);
 816         *posRT2RTAgg++ = 0x00;
 817         *posRT2RTAgg++ = 0xe0;
 818         *posRT2RTAgg++ = 0x4c;
 819         *posRT2RTAgg++ = 0x02;
 820         *posRT2RTAgg++ = 0x01;
 821         *posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02;
 822
 823         if(ieee->bSupportRemoteWakeUp) {
 824                 *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW;
 825         }
 826
 827         *len = 6 + 2;
 828         return;
 829 #ifdef TODO
 830 #if(HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE)
 831         /*
 832         //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this
 833            section of code.
 834         if(IS_UNDER_11N_AES_MODE(Adapter))
 835         {
 836                 posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU;
 837         }else
 838         {
 839                 posRT2RTAgg->Octet[5] &= 0xfb;
 840         }
 841         */
 842
 843 #else
 844         // Do Nothing
 845 #endif
 846
 847         posRT2RTAgg->Length = 6;
 848 #endif
 849
 850
 851
 852
 853 }
 854
 855
 856 /********************************************************************************************************************
 857  *function:  Pick the right Rate Adaptive table to use
 858  *   input:  struct ieee80211_device*   ieee
 859  *           u8*                        pOperateMCS //A pointer to MCS rate bitmap
 860  *  return:  always we return true
 861  *  notice:
 862   * *****************************************************************************************************************/
 863 u8 HT_PickMCSRate(struct ieee80211_device* ieee, u8* pOperateMCS)
 864 {
 865         u8                                      i;
 866         if (pOperateMCS == NULL)
 867         {
 868                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n");
 869                 return false;
 870         }
 871
 872         switch(ieee->mode)
 873         {
 874         case IEEE_A:
 875         case IEEE_B:
 876         case IEEE_G:
 877                         //legacy rate routine handled at selectedrate
 878
 879                         //no MCS rate
 880                         for(i=0;i<=15;i++){
 881                                 pOperateMCS[i] = 0;
 882                         }
 883                         break;
 884
 885         case IEEE_N_24G:        //assume CCK rate ok
 886         case IEEE_N_5G:
 887                         // Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G.
 888                         // Legacy part shall be handled at SelectRateSet().
 889
 890                         //HT part
 891                         // TODO: may be different if we have different number of antenna
 892                         pOperateMCS[0] &=RATE_ADPT_1SS_MASK;    //support MCS 0~7
 893                         pOperateMCS[1] &=RATE_ADPT_2SS_MASK;
 894                         pOperateMCS[3] &=RATE_ADPT_MCS32_MASK;
 895                         break;
 896
 897         //should never reach here
 898         default:
 899
 900                         break;
 901
 902         }
 903
 904         return true;
 905 }
 906
 907 /*
 908 *       Description:
 909 *               This function will get the highest speed rate in input MCS set.
 910 *
 911 *       /param  Adapter                 Pionter to Adapter entity
 912 *                       pMCSRateSet             Pointer to MCS rate bitmap
 913 *                       pMCSFilter              Pointer to MCS rate filter
 914 *
 915 *       /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter.
 916 *
 917 */
 918 /********************************************************************************************************************
 919  *function:  This function will get the highest speed rate in input MCS set.
 920  *   input:  struct ieee80211_device*   ieee
 921  *           u8*                        pMCSRateSet //Pointer to MCS rate bitmap
 922  *           u8*                        pMCSFilter //Pointer to MCS rate filter
 923  *  return:  Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter
 924  *  notice:
 925   * *****************************************************************************************************************/
 926 u8 HTGetHighestMCSRate(struct ieee80211_device* ieee, u8* pMCSRateSet, u8* pMCSFilter)
 927 {
 928         u8              i, j;
 929         u8              bitMap;
 930         u8              mcsRate = 0;
 931         u8              availableMcsRate[16];
 932         if (pMCSRateSet == NULL || pMCSFilter == NULL)
 933         {
 934                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n");
 935                 return false;
 936         }
 937         for(i=0; i<16; i++)
 938                 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
 939
 940         for(i = 0; i < 16; i++)
 941         {
 942                 if(availableMcsRate[i] != 0)
 943                         break;
 944         }
 945         if(i == 16)
 946                 return false;
 947
 948         for(i = 0; i < 16; i++)
 949         {
 950                 if(availableMcsRate[i] != 0)
 951                 {
 952                         bitMap = availableMcsRate[i];
 953                         for(j = 0; j < 8; j++)
 954                         {
 955                                 if((bitMap%2) != 0)
 956                                 {
 957                                         if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate))
 958                                                 mcsRate = (8*i+j);
 959                                 }
 960                                 bitMap = bitMap>>1;
 961                         }
 962                 }
 963         }
 964         return (mcsRate|0x80);
 965 }
 966
 967
 968
 969 /*
 970 **
 971 **1.Filter our operation rate set with AP's rate set
 972 **2.shall reference channel bandwidth, STBC, Antenna number
 973 **3.generate rate adative table for firmware
 974 **David 20060906
 975 **
 976 ** \pHTSupportedCap: the connected STA's supported rate Capability element
 977 */
 978 u8 HTFilterMCSRate( struct ieee80211_device* ieee, u8* pSupportMCS, u8* pOperateMCS)
 979 {
 980
 981         u8 i=0;
 982
 983         // filter out operational rate set not supported by AP, the lenth of it is 16
 984         for(i=0;i<=15;i++){
 985                 pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i];
 986         }
 987
 988
 989         // TODO: adjust our operational rate set  according to our channel bandwidth, STBC and Antenna number
 990
 991         // TODO: fill suggested rate adaptive rate index and give firmware info using Tx command packet
 992         // we also shall suggested the first start rate set according to our singal strength
 993         HT_PickMCSRate(ieee, pOperateMCS);
 994
 995         // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7.
 996         if (ieee->GetHalfNmodeSupportByAPsHandler(ieee))
 997                 pOperateMCS[1] = 0;
 998
 999         //
1000         // For RTL819X, we support only MCS0~15.
1001         // And also, we do not know how to use MCS32 now.
1002         //
1003         for(i=2; i<=15; i++)
1004                 pOperateMCS[i] = 0;
1005
1006         return true;
1007 }
1008 void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET    Offset);
1009 void HTOnAssocRsp(struct ieee80211_device *ieee)
1010 {
1011         PRT_HIGH_THROUGHPUT     pHTInfo = ieee->pHTInfo;
1012         PHT_CAPABILITY_ELE              pPeerHTCap = NULL;
1013         PHT_INFORMATION_ELE             pPeerHTInfo = NULL;
1014         u16     nMaxAMSDUSize = 0;
1015         u8*     pMcsFilter = NULL;
1016
1017         static u8                               EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};               // For 11n EWC definition, 2007.07.17, by Emily
1018         static u8                               EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};      // For 11n EWC definition, 2007.07.17, by Emily
1019
1020         if( pHTInfo->bCurrentHTSupport == false )
1021         {
1022                 IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n");
1023                 return;
1024         }
1025         IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
1026 //      IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE));
1027 //      IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE));
1028
1029 //      HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq");
1030 //      HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq");
1031         //
1032         if(!memcmp(pHTInfo->PeerHTCapBuf,EWC11NHTCap, sizeof(EWC11NHTCap)))
1033                 pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]);
1034         else
1035                 pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf);
1036
1037         if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
1038                 pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]);
1039         else
1040                 pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf);
1041
1042
1043         ////////////////////////////////////////////////////////
1044         // Configurations:
1045         ////////////////////////////////////////////////////////
1046         IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE));
1047 //      IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE));
1048         // Config Supported Channel Width setting
1049         //
1050         HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset));
1051
1052 //      if(pHTInfo->bCurBW40MHz == true)
1053                 pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false);
1054
1055         //
1056         // Update short GI/ long GI setting
1057         //
1058         // TODO:
1059         pHTInfo->bCurShortGI20MHz=
1060                 ((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false);
1061         pHTInfo->bCurShortGI40MHz=
1062                 ((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false);
1063
1064         //
1065         // Config TX STBC setting
1066         //
1067         // TODO:
1068
1069         //
1070         // Config DSSS/CCK  mode in 40MHz mode
1071         //
1072         // TODO:
1073         pHTInfo->bCurSuppCCK =
1074                 ((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false);
1075
1076
1077         //
1078         // Config and configure A-MSDU setting
1079         //
1080         pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
1081         if (ieee->rtllib_ap_sec_type &&
1082            (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))){
1083                 if( (pHTInfo->IOTPeer== HT_IOT_PEER_ATHEROS) ||
1084                                 (pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN) )
1085                         pHTInfo->bCurrentAMPDUEnable = false;
1086         }
1087
1088
1089         nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935;
1090
1091         if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize )
1092                 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
1093         else
1094                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1095
1096
1097         //
1098         // Config A-MPDU setting
1099         //
1100         pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
1101
1102         // <1> Decide AMPDU Factor
1103
1104         // By Emily
1105         if(!pHTInfo->bRegRT2RTAggregation)
1106         {
1107                 // Decide AMPDU Factor according to protocol handshake
1108                 if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
1109                         pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1110                 else
1111                         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1112
1113         }else
1114         {
1115                 // Set MPDU density to 2 to Realtek AP, and set it to 0 for others
1116                 // Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily
1117 #if 0
1118                 osTmp= PacketGetElement( asocpdu, EID_Vendor, OUI_SUB_REALTEK_AGG, OUI_SUBTYPE_DONT_CARE);
1119                 if(osTmp.Length >= 5)   //00:e0:4c:02:00
1120 #endif
1121                 if (ieee->current_network.bssht.bdRT2RTAggregation)
1122                 {
1123                         if( ieee->pairwise_key_type != KEY_TYPE_NA)
1124                                 // Realtek may set 32k in security mode and 64k for others
1125                                 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1126                         else
1127                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
1128                 }else
1129                 {
1130                         if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
1131                                 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1132                         else
1133                                 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
1134                 }
1135         }
1136
1137         // <2> Set AMPDU Minimum MPDU Start Spacing
1138         // 802.11n 3.0 section 9.7d.3
1139 #if 1
1140         if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
1141                 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1142         else
1143                 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
1144         if(ieee->pairwise_key_type != KEY_TYPE_NA )
1145                 pHTInfo->CurrentMPDUDensity     = 7; // 8us
1146 #else
1147         if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
1148                 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1149         else
1150                 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
1151 #endif
1152         // Force TX AMSDU
1153
1154         // Lanhsin: mark for tmp to avoid deauth by ap from  s3
1155         //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0)
1156         if(0)
1157                 {
1158
1159                         pHTInfo->bCurrentAMPDUEnable = false;
1160                         pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
1161                         pHTInfo->ForcedAMSDUMaxSize = 7935;
1162
1163                 pHTInfo->IOTAction |=  HT_IOT_ACT_TX_USE_AMSDU_8K;
1164         }
1165
1166         // Rx Reorder Setting
1167         pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
1168
1169         //
1170         // Filter out unsupported HT rate for this AP
1171         // Update RATR table
1172         // This is only for 8190 ,8192 or later product which using firmware to handle rate adaptive mechanism.
1173         //
1174
1175         // Handle Ralink AP bad MCS rate set condition. Joseph.
1176         // This fix the bug of Ralink AP. This may be removed in the future.
1177         if(pPeerHTCap->MCS[0] == 0)
1178                 pPeerHTCap->MCS[0] = 0xff;
1179
1180         HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
1181
1182         //
1183         // Config MIMO Power Save setting
1184         //
1185         pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
1186         if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
1187                 pMcsFilter = MCS_FILTER_1SS;
1188         else
1189                 pMcsFilter = MCS_FILTER_ALL;
1190         //WB add for MCS8 bug
1191 //      pMcsFilter = MCS_FILTER_1SS;
1192         ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter);
1193         ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
1194
1195         //
1196         // Config current operation mode.
1197         //
1198         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1199
1200
1201
1202 }
1203
1204 void HTSetConnectBwModeCallback(struct ieee80211_device* ieee);
1205 /********************************************************************************************************************
1206  *function:  initialize HT info(struct PRT_HIGH_THROUGHPUT)
1207  *   input:  struct ieee80211_device*   ieee
1208  *  output:  none
1209  *  return:  none
1210  *  notice: This function is called when *  (1) MPInitialization Phase *  (2) Receiving of Deauthentication from AP
1211 ********************************************************************************************************************/
1212 // TODO: Should this funciton be called when receiving of Disassociation?
1213 void HTInitializeHTInfo(struct ieee80211_device* ieee)
1214 {
1215         PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1216
1217         //
1218         // These parameters will be reset when receiving deauthentication packet
1219         //
1220         IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __FUNCTION__);
1221         pHTInfo->bCurrentHTSupport = false;
1222
1223         // 40MHz channel support
1224         pHTInfo->bCurBW40MHz = false;
1225         pHTInfo->bCurTxBW40MHz = false;
1226
1227         // Short GI support
1228         pHTInfo->bCurShortGI20MHz = false;
1229         pHTInfo->bCurShortGI40MHz = false;
1230         pHTInfo->bForcedShortGI = false;
1231
1232         // CCK rate support
1233         // This flag is set to true to support CCK rate by default.
1234         // It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities only when associate to
1235         // 11N BSS.
1236         pHTInfo->bCurSuppCCK = true;
1237
1238         // AMSDU related
1239         pHTInfo->bCurrent_AMSDU_Support = false;
1240         pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1241
1242         // AMPUD related
1243         pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1244         pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1245
1246
1247
1248         // Initialize all of the parameters related to 11n
1249         memset((void*)(&(pHTInfo->SelfHTCap)), 0, sizeof(pHTInfo->SelfHTCap));
1250         memset((void*)(&(pHTInfo->SelfHTInfo)), 0, sizeof(pHTInfo->SelfHTInfo));
1251         memset((void*)(&(pHTInfo->PeerHTCapBuf)), 0, sizeof(pHTInfo->PeerHTCapBuf));
1252         memset((void*)(&(pHTInfo->PeerHTInfoBuf)), 0, sizeof(pHTInfo->PeerHTInfoBuf));
1253
1254         pHTInfo->bSwBwInProgress = false;
1255         pHTInfo->ChnlOp = CHNLOP_NONE;
1256
1257         // Set default IEEE spec for Draft N
1258         pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
1259
1260         // Realtek proprietary aggregation mode
1261         pHTInfo->bCurrentRT2RTAggregation = false;
1262         pHTInfo->bCurrentRT2RTLongSlotTime = false;
1263         pHTInfo->IOTPeer = 0;
1264         pHTInfo->IOTAction = 0;
1265
1266         //MCS rate initialized here
1267         {
1268                 u8* RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
1269                 RegHTSuppRateSets[0] = 0xFF;    //support MCS 0~7
1270                 RegHTSuppRateSets[1] = 0xFF;    //support MCS 8~15
1271                 RegHTSuppRateSets[4] = 0x01;    //support MCS 32
1272         }
1273 }
1274 /********************************************************************************************************************
1275  *function:  initialize Bss HT structure(struct PBSS_HT)
1276  *   input:  PBSS_HT pBssHT //to be initialized
1277  *  output:  none
1278  *  return:  none
1279  *  notice: This function is called when initialize network structure
1280 ********************************************************************************************************************/
1281 void HTInitializeBssDesc(PBSS_HT pBssHT)
1282 {
1283
1284         pBssHT->bdSupportHT = false;
1285         memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
1286         pBssHT->bdHTCapLen = 0;
1287         memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
1288         pBssHT->bdHTInfoLen = 0;
1289
1290         pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE;
1291
1292         pBssHT->bdRT2RTAggregation = false;
1293         pBssHT->bdRT2RTLongSlotTime = false;
1294 }
1295 #if 0
1296 //below function has merged into ieee80211_network_init() in ieee80211_rx.c
1297 void
1298 HTParsingHTCapElement(
1299         IN      PADAPTER                Adapter,
1300         IN      OCTET_STRING    HTCapIE,
1301         OUT     PRT_WLAN_BSS    pBssDesc
1302 )
1303 {
1304         PMGNT_INFO                              pMgntInfo = &Adapter->MgntInfo;
1305
1306         if( HTCapIE.Length > sizeof(pBssDesc->BssHT.bdHTCapBuf) )
1307         {
1308                 RT_TRACE( COMP_HT, DBG_LOUD, ("HTParsingHTCapElement(): HT Capability Element length is too long!\n") );
1309                 return;
1310         }
1311
1312         // TODO: Check the correctness of HT Cap
1313         //Print each field in detail. Driver should not print out this message by default
1314         if(!pMgntInfo->mActingAsAp && !pMgntInfo->mAssoc)
1315                 HTDebugHTCapability(DBG_TRACE, Adapter, &HTCapIE, (pu8)"HTParsingHTCapElement()");
1316
1317         HTCapIE.Length = HTCapIE.Length > sizeof(pBssDesc->BssHT.bdHTCapBuf)?\
1318                 sizeof(pBssDesc->BssHT.bdHTCapBuf):HTCapIE.Length;      //prevent from overflow
1319
1320         CopyMem(pBssDesc->BssHT.bdHTCapBuf, HTCapIE.Octet, HTCapIE.Length);
1321         pBssDesc->BssHT.bdHTCapLen = HTCapIE.Length;
1322
1323 }
1324
1325
1326 void
1327 HTParsingHTInfoElement(
1328         PADAPTER                Adapter,
1329         OCTET_STRING    HTInfoIE,
1330         PRT_WLAN_BSS    pBssDesc
1331 )
1332 {
1333         PMGNT_INFO                              pMgntInfo = &Adapter->MgntInfo;
1334
1335         if( HTInfoIE.Length > sizeof(pBssDesc->BssHT.bdHTInfoBuf))
1336         {
1337                 RT_TRACE( COMP_HT, DBG_LOUD, ("HTParsingHTInfoElement(): HT Information Element length is too long!\n") );
1338                 return;
1339         }
1340
1341         // TODO: Check the correctness of HT Info
1342         //Print each field in detail. Driver should not print out this message by default
1343         if(!pMgntInfo->mActingAsAp && !pMgntInfo->mAssoc)
1344                 HTDebugHTInfo(DBG_TRACE, Adapter, &HTInfoIE, (pu8)"HTParsingHTInfoElement()");
1345
1346         HTInfoIE.Length = HTInfoIE.Length > sizeof(pBssDesc->BssHT.bdHTInfoBuf)?\
1347                 sizeof(pBssDesc->BssHT.bdHTInfoBuf):HTInfoIE.Length;    //prevent from overflow
1348
1349         CopyMem( pBssDesc->BssHT.bdHTInfoBuf, HTInfoIE.Octet, HTInfoIE.Length);
1350         pBssDesc->BssHT.bdHTInfoLen = HTInfoIE.Length;
1351 }
1352
1353 /*
1354   * Get HT related information from beacon and save it in BssDesc
1355   *
1356   * (1) Parse HTCap, and HTInfo, and record whether it is 11n AP
1357   * (2) If peer is HT, but not WMM, call QosSetLegacyWMMParamWithHT()
1358   * (3) Check whether peer is Realtek AP (for Realtek proprietary aggregation mode).
1359   * Input:
1360   *             PADAPTER        Adapter
1361   *
1362   * Output:
1363   *             PRT_TCB         BssDesc
1364   *
1365 */
1366 void HTGetValueFromBeaconOrProbeRsp(
1367         PADAPTER                        Adapter,
1368         POCTET_STRING           pSRCmmpdu,
1369         PRT_WLAN_BSS            bssDesc
1370 )
1371 {
1372         PMGNT_INFO                              pMgntInfo = &Adapter->MgntInfo;
1373         PRT_HIGH_THROUGHPUT             pHTInfo = GET_HT_INFO(pMgntInfo);
1374         OCTET_STRING                            HTCapIE, HTInfoIE, HTRealtekAgg, mmpdu;
1375         OCTET_STRING                            BroadcomElement, CiscoElement;
1376
1377         mmpdu.Octet = pSRCmmpdu->Octet;
1378         mmpdu.Length = pSRCmmpdu->Length;
1379
1380         //2Note:
1381         //   Mark for IOT testing using  Linksys WRT350N, This AP does not contain WMM IE  when
1382         //   it is configured at pure-N mode.
1383         //      if(bssDesc->BssQos.bdQoSMode & QOS_WMM)
1384         //
1385
1386         HTInitializeBssDesc (&bssDesc->BssHT);
1387
1388         //2<1> Parse HTCap, and HTInfo
1389         // Get HT Capability IE: (1) Get IEEE Draft N IE or (2) Get EWC IE
1390         HTCapIE = PacketGetElement(mmpdu, EID_HTCapability, OUI_SUB_DONT_CARE, OUI_SUBTYPE_DONT_CARE);
1391         if(HTCapIE.Length == 0)
1392         {
1393                 HTCapIE = PacketGetElement(mmpdu, EID_Vendor, OUI_SUB_11N_EWC_HT_CAP, OUI_SUBTYPE_DONT_CARE);
1394                 if(HTCapIE.Length != 0)
1395                         bssDesc->BssHT.bdHTSpecVer= HT_SPEC_VER_EWC;
1396         }
1397         if(HTCapIE.Length != 0)
1398                 HTParsingHTCapElement(Adapter, HTCapIE, bssDesc);
1399
1400         // Get HT Information IE: (1) Get IEEE Draft N IE or (2) Get EWC IE
1401         HTInfoIE = PacketGetElement(mmpdu, EID_HTInfo, OUI_SUB_DONT_CARE, OUI_SUBTYPE_DONT_CARE);
1402         if(HTInfoIE.Length == 0)
1403         {
1404                 HTInfoIE = PacketGetElement(mmpdu, EID_Vendor, OUI_SUB_11N_EWC_HT_INFO, OUI_SUBTYPE_DONT_CARE);
1405                 if(HTInfoIE.Length != 0)
1406                                 bssDesc->BssHT.bdHTSpecVer  = HT_SPEC_VER_EWC;
1407         }
1408         if(HTInfoIE.Length != 0)
1409                 HTParsingHTInfoElement(Adapter, HTInfoIE, bssDesc);
1410
1411         //2<2>If peer is HT, but not WMM, call QosSetLegacyWMMParamWithHT()
1412         if(HTCapIE.Length != 0)
1413         {
1414                 bssDesc->BssHT.bdSupportHT = true;
1415                 if(bssDesc->BssQos.bdQoSMode == QOS_DISABLE)
1416                         QosSetLegacyWMMParamWithHT(Adapter, bssDesc);
1417         }
1418         else
1419         {
1420                 bssDesc->BssHT.bdSupportHT = false;
1421         }
1422
1423         //2<3>Check whether the peer is Realtek AP/STA
1424         if(pHTInfo->bRegRT2RTAggregation)
1425         {
1426                 if(bssDesc->BssHT.bdSupportHT)
1427                 {
1428                         HTRealtekAgg = PacketGetElement(mmpdu, EID_Vendor, OUI_SUB_REALTEK_AGG, OUI_SUBTYPE_DONT_CARE);
1429                         if(HTRealtekAgg.Length >=5 )
1430                         {
1431                                 bssDesc->BssHT.bdRT2RTAggregation = true;
1432
1433                                 if((HTRealtekAgg.Octet[4]==1) && (HTRealtekAgg.Octet[5] & 0x02))
1434                                         bssDesc->BssHT.bdRT2RTLongSlotTime = true;
1435                         }
1436                 }
1437         }
1438
1439         //
1440         // 2008/01/25 MH Get Broadcom AP IE for manamgent frame CCK rate problem.
1441         // AP can not receive CCK managemtn from from 92E.
1442         //
1443
1444         // Initialize every new bss broadcom cap exist as false..
1445         bssDesc->bBroadcomCapExist= false;
1446
1447         if(HTCapIE.Length != 0 || HTInfoIE.Length != 0)
1448         {
1449                 u4Byte  Length = 0;
1450
1451                 FillOctetString(BroadcomElement, NULL, 0);
1452
1453                 BroadcomElement = PacketGetElement( mmpdu, EID_Vendor, OUI_SUB_BROADCOM_IE_1, OUI_SUBTYPE_DONT_CARE);
1454                 Length += BroadcomElement.Length;
1455                 BroadcomElement = PacketGetElement( mmpdu, EID_Vendor, OUI_SUB_BROADCOM_IE_2, OUI_SUBTYPE_DONT_CARE);
1456                 Length += BroadcomElement.Length;
1457                 BroadcomElement = PacketGetElement( mmpdu, EID_Vendor, OUI_SUB_BROADCOM_IE_3, OUI_SUBTYPE_DONT_CARE);
1458                 Length += BroadcomElement.Length;
1459
1460                 if(Length > 0)
1461                         bssDesc->bBroadcomCapExist = true;
1462         }
1463
1464
1465         // For Cisco IOT issue
1466         CiscoElement = PacketGetElement( mmpdu, EID_Vendor, OUI_SUB_CISCO_IE, OUI_SUBTYPE_DONT_CARE);
1467         if(CiscoElement.Length != 0){ // 3: 0x00, 0x40, 0x96 ....
1468                 bssDesc->bCiscoCapExist = true;
1469         }else{
1470                 bssDesc->bCiscoCapExist = false;
1471         }
1472 }
1473
1474
1475 #endif
1476 /********************************************************************************************************************
1477  *function:  initialize Bss HT structure(struct PBSS_HT)
1478  *   input:  struct ieee80211_device    *ieee
1479  *           struct ieee80211_network   *pNetwork //usually current network we are live in
1480  *  output:  none
1481  *  return:  none
1482  *  notice: This function should ONLY be called before association
1483 ********************************************************************************************************************/
1484 void HTResetSelfAndSavePeerSetting(struct ieee80211_device* ieee,       struct ieee80211_network * pNetwork)
1485 {
1486         PRT_HIGH_THROUGHPUT             pHTInfo = ieee->pHTInfo;
1487 //      u16                                             nMaxAMSDUSize;
1488 //      PHT_CAPABILITY_ELE              pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1489 //      PHT_INFORMATION_ELE             pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1490 //      u8*     pMcsFilter;
1491         u8      bIOTAction = 0;
1492
1493         //
1494         //  Save Peer Setting before Association
1495         //
1496         IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __FUNCTION__);
1497         /*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/
1498 //      if( pHTInfo->bEnableHT &&  pNetwork->bssht.bdSupportHT)
1499         if (pNetwork->bssht.bdSupportHT)
1500         {
1501                 pHTInfo->bCurrentHTSupport = true;
1502                 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
1503
1504                 // Save HTCap and HTInfo information Element
1505                 if(pNetwork->bssht.bdHTCapLen > 0 &&    pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
1506                         memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen);
1507
1508                 if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf))
1509                         memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen);
1510
1511                 // Check whether RT to RT aggregation mode is enabled
1512                 if(pHTInfo->bRegRT2RTAggregation)
1513                 {
1514                         pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation;
1515                         pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime;
1516                 }
1517                 else
1518                 {
1519                         pHTInfo->bCurrentRT2RTAggregation = false;
1520                         pHTInfo->bCurrentRT2RTLongSlotTime = false;
1521                 }
1522
1523                 // Determine the IOT Peer Vendor.
1524                 HTIOTPeerDetermine(ieee);
1525
1526                 // Decide IOT Action
1527                 // Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided
1528                 pHTInfo->IOTAction = 0;
1529                 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
1530                 if(bIOTAction)
1531                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
1532                 bIOTAction = HTIOTActIsForcedCTS2Self(ieee, pNetwork);
1533                 if(bIOTAction)
1534                         pHTInfo->IOTAction |= HT_IOT_ACT_FORCED_CTS2SELF;
1535
1536                 bIOTAction = HTIOTActIsDisableMCS15(ieee);
1537                 if(bIOTAction)
1538                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
1539
1540                 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid);
1541                 if(bIOTAction)
1542                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
1543
1544
1545                 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
1546                 if(bIOTAction)
1547                         pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
1548
1549                 bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork);
1550                 if(bIOTAction)
1551                         pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
1552
1553                 bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid);
1554                 if(bIOTAction)
1555                         pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
1556
1557                 bIOTAction = HTIOTActIsNullDataPowerSaving(ieee, pNetwork);
1558                 if(bIOTAction)
1559                         pHTInfo->IOTAction |= HT_IOT_ACT_NULL_DATA_POWER_SAVING;
1560
1561         }
1562         else
1563         {
1564                 pHTInfo->bCurrentHTSupport = false;
1565                 pHTInfo->bCurrentRT2RTAggregation = false;
1566                 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1567
1568                 pHTInfo->IOTAction = 0;
1569         }
1570
1571 }
1572
1573 void HTUpdateSelfAndPeerSetting(struct ieee80211_device* ieee,  struct ieee80211_network * pNetwork)
1574 {
1575         PRT_HIGH_THROUGHPUT     pHTInfo = ieee->pHTInfo;
1576 //      PHT_CAPABILITY_ELE              pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1577         PHT_INFORMATION_ELE             pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1578
1579         if(pHTInfo->bCurrentHTSupport)
1580         {
1581                 //
1582                 // Config current operation mode.
1583                 //
1584                 if(pNetwork->bssht.bdHTInfoLen != 0)
1585                         pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1586
1587                 //
1588                 // <TODO: Config according to OBSS non-HT STA present!!>
1589                 //
1590         }
1591 }
1592
1593 void HTUseDefaultSetting(struct ieee80211_device* ieee)
1594 {
1595         PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1596 //      u8      regBwOpMode;
1597
1598         if(pHTInfo->bEnableHT)
1599         {
1600                 pHTInfo->bCurrentHTSupport = true;
1601
1602                 pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
1603
1604                 pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
1605
1606                 pHTInfo->bCurShortGI20MHz= pHTInfo->bRegShortGI20MHz;
1607
1608                 pHTInfo->bCurShortGI40MHz= pHTInfo->bRegShortGI40MHz;
1609
1610                 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
1611
1612                 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1613
1614                 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
1615
1616                 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1617
1618                 pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
1619
1620                 // Set BWOpMode register
1621
1622                 //update RATR index0
1623                 HTFilterMCSRate(ieee, ieee->Regdot11HTOperationalRateSet, ieee->dot11HTOperationalRateSet);
1624         //function below is not implemented at all. WB
1625 #ifdef TODO
1626                 Adapter->HalFunc.InitHalRATRTableHandler( Adapter, &pMgntInfo->dot11OperationalRateSet, pMgntInfo->dot11HTOperationalRateSet);
1627 #endif
1628                 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, MCS_FILTER_ALL);
1629                 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
1630
1631         }
1632         else
1633         {
1634                 pHTInfo->bCurrentHTSupport = false;
1635         }
1636 }
1637 /********************************************************************************************************************
1638  *function:  check whether HT control field exists
1639  *   input:  struct ieee80211_device    *ieee
1640  *           u8*                        pFrame //coming skb->data
1641  *  output:  none
1642  *  return:  return true if HT control field exists(false otherwise)
1643  *  notice:
1644 ********************************************************************************************************************/
1645 u8 HTCCheck(struct ieee80211_device* ieee, u8*  pFrame)
1646 {
1647         if(ieee->pHTInfo->bCurrentHTSupport)
1648         {
1649                 if( (IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1)
1650                 {
1651                         IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n");
1652                         return true;
1653                 }
1654         }
1655         return false;
1656 }
1657
1658 //
1659 // This function set bandwidth mode in protocol layer.
1660 //
1661 void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET    Offset)
1662 {
1663         PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1664 //      u32 flags = 0;
1665
1666         if(pHTInfo->bRegBW40MHz == false)
1667                 return;
1668
1669
1670
1671         // To reduce dummy operation
1672 //      if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) ||
1673 //         (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset))
1674 //              return;
1675
1676 //      spin_lock_irqsave(&(ieee->bw_spinlock), flags);
1677         if(pHTInfo->bSwBwInProgress) {
1678 //              spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1679                 return;
1680         }
1681         //if in half N mode, set to 20M bandwidth please 09.08.2008 WB.
1682         if (Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee)))
1683          {
1684                         // Handle Illegal extension channel offset!!
1685                 if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER)
1686                         Offset = HT_EXTCHNL_OFFSET_NO_EXT;
1687                 if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) {
1688                         pHTInfo->bCurBW40MHz = true;
1689                         pHTInfo->CurSTAExtChnlOffset = Offset;
1690                 } else {
1691                         pHTInfo->bCurBW40MHz = false;
1692                         pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1693                 }
1694         } else {
1695                 pHTInfo->bCurBW40MHz = false;
1696                 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1697         }
1698
1699         pHTInfo->bSwBwInProgress = true;
1700
1701         // TODO: 2007.7.13 by Emily Wait 2000ms  in order to guarantee that switching
1702         //   bandwidth is executed after scan is finished. It is a temporal solution
1703         //   because software should ganrantee the last operation of switching bandwidth
1704         //   is executed properlly.
1705         HTSetConnectBwModeCallback(ieee);
1706
1707 //      spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1708 }
1709
1710 void HTSetConnectBwModeCallback(struct ieee80211_device* ieee)
1711 {
1712         PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1713
1714         IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __FUNCTION__);
1715
1716         if(pHTInfo->bCurBW40MHz)
1717         {
1718                 if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_UPPER)
1719                         ieee->set_chan(ieee, ieee->current_network.channel+2);
1720                 else if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_LOWER)
1721                         ieee->set_chan(ieee, ieee->current_network.channel-2);
1722                 else
1723                         ieee->set_chan(ieee, ieee->current_network.channel);
1724
1725                 ieee->SetBWModeHandler(ieee, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset);
1726         } else {
1727                 ieee->set_chan(ieee, ieee->current_network.channel);
1728                 ieee->SetBWModeHandler(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1729         }
1730
1731         pHTInfo->bSwBwInProgress = false;
1732 }