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 u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf}; 33 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70}; 34 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e}; 35 static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f}; 36 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f}; //cosa 03202008 37 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf}; 38 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc}; 39 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e}; 40 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02}; 41 //static u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0}; 42 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94}; 43 44 // 2008/04/01 MH For Cisco G mode RX TP We need to change FW duration. Should we put the 45 // code in other place?? 46 //static u8 WIFI_CISCO_G_AP[3] = {0x00, 0x40, 0x96}; 47 /******************************************************************************************************************** 48 *function: This function update default settings in pHTInfo structure 49 * input: PRT_HIGH_THROUGHPUT pHTInfo 50 * output: none 51 * return: none 52 * notice: These value need be modified if any changes. 53 * *****************************************************************************************************************/ 54 void HTUpdateDefaultSetting(struct ieee80211_device *ieee) 55 { 56 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 57 //const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo; 58 59 //printk("pHTinfo:%p, &pHTinfo:%p, mptr:%p, offsetof:%x\n", pHTInfo, &pHTInfo, __mptr, offsetof(struct ieee80211_device, pHTInfo)); 60 //printk("===>ieee:%p,\n", ieee); 61 // ShortGI support 62 pHTInfo->bRegShortGI20MHz= 1; 63 pHTInfo->bRegShortGI40MHz= 1; 64 65 // 40MHz channel support 66 pHTInfo->bRegBW40MHz = 1; 67 68 // CCK rate support in 40MHz channel 69 if(pHTInfo->bRegBW40MHz) 70 pHTInfo->bRegSuppCCK = 1; 71 else 72 pHTInfo->bRegSuppCCK = true; 73 74 // AMSDU related 75 pHTInfo->nAMSDU_MaxSize = 7935UL; 76 pHTInfo->bAMSDU_Support = 0; 77 78 // AMPDU related 79 pHTInfo->bAMPDUEnable = 1; 80 pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k) 81 pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec 82 83 // MIMO Power Save 84 pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.) 85 if(pHTInfo->SelfMimoPs == 2) 86 pHTInfo->SelfMimoPs = 3; 87 // 8190 only. Assign rate operation mode to firmware 88 ieee->bTxDisableRateFallBack = 0; 89 ieee->bTxUseDriverAssingedRate = 0; 90 91 #ifdef TO_DO_LIST 92 // 8190 only. Assign duration operation mode to firmware 93 pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur; 94 #endif 95 // 8190 only, Realtek proprietary aggregation mode 96 // Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others 97 pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others 98 99 // For Rx Reorder Control 100 pHTInfo->bRegRxReorderEnable = 1; 101 pHTInfo->RxReorderWinSize = 64; 102 pHTInfo->RxReorderPendingTime = 30; 103 104 #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE 105 pHTInfo->UsbTxAggrNum = 4; 106 #endif 107 #ifdef USB_RX_AGGREGATION_SUPPORT 108 pHTInfo->UsbRxFwAggrEn = 1; 109 pHTInfo->UsbRxFwAggrPageNum = 24; 110 pHTInfo->UsbRxFwAggrPacketNum = 8; 111 pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us 112 #endif 113 114 115 } 116 /******************************************************************************************************************** 117 *function: This function print out each field on HT capability IE mainly from (Beacon/ProbeRsp/AssocReq) 118 * input: u8* CapIE //Capability IE to be printed out 119 * u8* TitleString //mainly print out caller function 120 * output: none 121 * return: none 122 * notice: Driver should not print out this message by default. 123 * *****************************************************************************************************************/ 124 void HTDebugHTCapability(u8 *CapIE, u8 *TitleString ) 125 { 126 127 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily 128 PHT_CAPABILITY_ELE pCapELE; 129 130 if(!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) 131 { 132 //EWC IE 133 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__); 134 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[4]); 135 }else 136 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[0]); 137 138 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Capability>. Called by %s\n", TitleString ); 139 140 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupported Channel Width = %s\n", (pCapELE->ChlWidth)?"20MHz": "20/40MHz"); 141 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 20M = %s\n", (pCapELE->ShortGI20Mhz)?"YES": "NO"); 142 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 40M = %s\n", (pCapELE->ShortGI40Mhz)?"YES": "NO"); 143 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport TX STBC = %s\n", (pCapELE->TxSTBC)?"YES": "NO"); 144 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMSDU Size = %s\n", (pCapELE->MaxAMSDUSize)?"3839": "7935"); 145 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport CCK in 20/40 mode = %s\n", (pCapELE->DssCCk)?"YES": "NO"); 146 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMPDU Factor = %d\n", pCapELE->MaxRxAMPDUFactor); 147 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMPDU Density = %d\n", pCapELE->MPDUDensity); 148 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n", pCapELE->MCS[0],\ 149 pCapELE->MCS[1], pCapELE->MCS[2], pCapELE->MCS[3], pCapELE->MCS[4]); 150 return; 151 152 } 153 /******************************************************************************************************************** 154 *function: This function print out each field on HT Information IE mainly from (Beacon/ProbeRsp) 155 * input: u8* InfoIE //Capability IE to be printed out 156 * u8* TitleString //mainly print out caller function 157 * output: none 158 * return: none 159 * notice: Driver should not print out this message by default. 160 * *****************************************************************************************************************/ 161 void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString) 162 { 163 164 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily 165 PHT_INFORMATION_ELE pHTInfoEle; 166 167 if(!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo))) 168 { 169 // Not EWC IE 170 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__); 171 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]); 172 }else 173 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]); 174 175 176 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Information Element>. Called by %s\n", TitleString); 177 178 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl); 179 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSenondary channel ="); 180 switch (pHTInfoEle->ExtChlOffset) 181 { 182 case 0: 183 IEEE80211_DEBUG(IEEE80211_DL_HT, "Not Present\n"); 184 break; 185 case 1: 186 IEEE80211_DEBUG(IEEE80211_DL_HT, "Upper channel\n"); 187 break; 188 case 2: 189 IEEE80211_DEBUG(IEEE80211_DL_HT, "Reserved. Eooro!!!\n"); 190 break; 191 case 3: 192 IEEE80211_DEBUG(IEEE80211_DL_HT, "Lower Channel\n"); 193 break; 194 } 195 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tRecommended channel width = %s\n", (pHTInfoEle->RecommemdedTxWidth)?"20Mhz": "40Mhz"); 196 197 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tOperation mode for protection = "); 198 switch (pHTInfoEle->OptMode) 199 { 200 case 0: 201 IEEE80211_DEBUG(IEEE80211_DL_HT, "No Protection\n"); 202 break; 203 case 1: 204 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT non-member protection mode\n"); 205 break; 206 case 2: 207 IEEE80211_DEBUG(IEEE80211_DL_HT, "Suggest to open protection\n"); 208 break; 209 case 3: 210 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT mixed mode\n"); 211 break; 212 } 213 214 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x][%x]\n", pHTInfoEle->BasicMSC[0],\ 215 pHTInfoEle->BasicMSC[1], pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3], pHTInfoEle->BasicMSC[4]); 216 return; 217 } 218 219 /* 220 * Return: true if station in half n mode and AP supports 40 bw 221 */ 222 static bool IsHTHalfNmode40Bandwidth(struct ieee80211_device *ieee) 223 { 224 bool retValue = false; 225 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 226 227 if(!pHTInfo->bCurrentHTSupport) // wireless is n mode 228 retValue = false; 229 else if(!pHTInfo->bRegBW40MHz) // station supports 40 bw 230 retValue = false; 231 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode 232 retValue = false; 233 else if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ChlWidth) // ap support 40 bw 234 retValue = true; 235 else 236 retValue = false; 237 238 return retValue; 239 } 240 241 static bool IsHTHalfNmodeSGI(struct ieee80211_device *ieee, bool is40MHz) 242 { 243 bool retValue = false; 244 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 245 246 if(!pHTInfo->bCurrentHTSupport) // wireless is n mode 247 retValue = false; 248 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode 249 retValue = false; 250 else if(is40MHz) // ap support 40 bw 251 { 252 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI40Mhz) // ap support 40 bw short GI 253 retValue = true; 254 else 255 retValue = false; 256 } 257 else 258 { 259 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI20Mhz) // ap support 40 bw short GI 260 retValue = true; 261 else 262 retValue = false; 263 } 264 265 return retValue; 266 } 267 268 u16 HTHalfMcsToDataRate(struct ieee80211_device *ieee, u8 nMcsRate) 269 { 270 271 u8 is40MHz; 272 u8 isShortGI; 273 274 is40MHz = (IsHTHalfNmode40Bandwidth(ieee))?1:0; 275 isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz))? 1:0; 276 277 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)]; 278 } 279 280 281 u16 HTMcsToDataRate(struct ieee80211_device *ieee, u8 nMcsRate) 282 { 283 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 284 285 u8 is40MHz = (pHTInfo->bCurBW40MHz)?1:0; 286 u8 isShortGI = (pHTInfo->bCurBW40MHz)? 287 ((pHTInfo->bCurShortGI40MHz)?1:0): 288 ((pHTInfo->bCurShortGI20MHz)?1:0); 289 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)]; 290 } 291 292 /******************************************************************************************************************** 293 *function: This function returns current datarate. 294 * input: struct ieee80211_device* ieee 295 * u8 nDataRate 296 * output: none 297 * return: tx rate 298 * notice: quite unsure about how to use this function //wb 299 * *****************************************************************************************************************/ 300 u16 TxCountToDataRate(struct ieee80211_device *ieee, u8 nDataRate) 301 { 302 //PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 303 u16 CCKOFDMRate[12] = {0x02 , 0x04 , 0x0b , 0x16 , 0x0c , 0x12 , 0x18 , 0x24 , 0x30 , 0x48 , 0x60 , 0x6c}; 304 u8 is40MHz = 0; 305 u8 isShortGI = 0; 306 307 if(nDataRate < 12) 308 { 309 return CCKOFDMRate[nDataRate]; 310 } 311 else 312 { 313 if (nDataRate >= 0x10 && nDataRate <= 0x1f)//if(nDataRate > 11 && nDataRate < 28 ) 314 { 315 is40MHz = 0; 316 isShortGI = 0; 317 318 // nDataRate = nDataRate - 12; 319 } 320 else if(nDataRate >=0x20 && nDataRate <= 0x2f ) //(27, 44) 321 { 322 is40MHz = 1; 323 isShortGI = 0; 324 325 //nDataRate = nDataRate - 28; 326 } 327 else if(nDataRate >= 0x30 && nDataRate <= 0x3f ) //(43, 60) 328 { 329 is40MHz = 0; 330 isShortGI = 1; 331 332 //nDataRate = nDataRate - 44; 333 } 334 else if(nDataRate >= 0x40 && nDataRate <= 0x4f ) //(59, 76) 335 { 336 is40MHz = 1; 337 isShortGI = 1; 338 339 //nDataRate = nDataRate - 60; 340 } 341 return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf]; 342 } 343 } 344 345 346 347 bool IsHTHalfNmodeAPs(struct ieee80211_device *ieee) 348 { 349 bool retValue = false; 350 struct ieee80211_network *net = &ieee->current_network; 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 static 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 else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) || 388 (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)|| 389 (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)|| 390 (memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) ) 391 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM; 392 else if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) || 393 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) || 394 (memcmp(net->bssid, PCI_RALINK, 3)==0) || 395 (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) || 396 (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) || 397 net->ralink_cap_exist) 398 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK; 399 else if(net->atheros_cap_exist) 400 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS; 401 else if(memcmp(net->bssid, CISCO_BROADCOM, 3)==0) 402 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO; 403 else 404 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN; 405 406 IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer); 407 } 408 /******************************************************************************************************************** 409 *function: Check whether driver should declare received rate up to MCS13 only since some chipset is not good 410 * at receiving MCS14~15 frame from some AP. 411 * input: struct ieee80211_device* ieee 412 * u8 * PeerMacAddr 413 * output: none 414 * return: return 1 if driver should declare MCS13 only(otherwise return 0) 415 * *****************************************************************************************************************/ 416 static u8 HTIOTActIsDisableMCS14(struct ieee80211_device *ieee, u8 *PeerMacAddr) 417 { 418 return 0; 419 } 420 421 422 /** 423 * Function: HTIOTActIsDisableMCS15 424 * 425 * Overview: Check whether driver should declare capability of receiving MCS15 426 * 427 * Input: 428 * PADAPTER Adapter, 429 * 430 * Output: None 431 * Return: true if driver should disable MCS15 432 * 2008.04.15 Emily 433 */ 434 static bool HTIOTActIsDisableMCS15(struct ieee80211_device *ieee) 435 { 436 bool retValue = false; 437 438 #ifdef TODO 439 // Apply for 819u only 440 #if (HAL_CODE_BASE==RTL8192) 441 442 #if (DEV_BUS_TYPE == USB_INTERFACE) 443 // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15 444 retValue = true; 445 #elif (DEV_BUS_TYPE == PCI_INTERFACE) 446 // Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12 447 // if(pBssDesc->bCiscoCapExist) 448 // retValue = false; 449 // else 450 retValue = false; 451 #endif 452 #endif 453 #endif 454 // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15 455 456 return retValue; 457 } 458 459 /** 460 * Function: HTIOTActIsDisableMCSTwoSpatialStream 461 * 462 * Overview: Check whether driver should declare capability of receiving All 2 ss packets 463 * 464 * Input: 465 * PADAPTER Adapter, 466 * 467 * Output: None 468 * Return: true if driver should disable all two spatial stream packet 469 * 2008.04.21 Emily 470 */ 471 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee, 472 u8 *PeerMacAddr) 473 { 474 #ifdef TODO 475 // Apply for 819u only 476 #endif 477 return false; 478 } 479 480 /******************************************************************************************************************** 481 *function: Check whether driver should disable EDCA turbo mode 482 * input: struct ieee80211_device* ieee 483 * u8* PeerMacAddr 484 * output: none 485 * return: return 1 if driver should disable EDCA turbo mode(otherwise return 0) 486 * *****************************************************************************************************************/ 487 static u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device *ieee, 488 u8 *PeerMacAddr) 489 { /* default enable EDCA Turbo mode. */ 490 return false; 491 } 492 493 /******************************************************************************************************************** 494 *function: Check whether we need to use OFDM to sned MGNT frame for broadcom AP 495 * input: struct ieee80211_network *network //current network we live 496 * output: none 497 * return: return 1 if true 498 * *****************************************************************************************************************/ 499 static u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network) 500 { 501 u8 retValue = 0; 502 503 // 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP. 504 // 2008/01/28 MH We must prevent that we select null bssid to link. 505 506 if (network->broadcom_cap_exist) 507 { 508 retValue = 1; 509 } 510 511 return retValue; 512 } 513 514 static u8 HTIOTActIsCCDFsync(u8 *PeerMacAddr) 515 { 516 u8 retValue = 0; 517 if( (memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) || 518 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) || 519 (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0)) 520 { 521 retValue = 1; 522 } 523 524 return retValue; 525 } 526 527 void HTResetIOTSetting( 528 PRT_HIGH_THROUGHPUT pHTInfo 529 ) 530 { 531 pHTInfo->IOTAction = 0; 532 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN; 533 } 534 535 536 /******************************************************************************************************************** 537 *function: Construct Capablility Element in Beacon... if HTEnable is turned on 538 * input: struct ieee80211_device* ieee 539 * u8* posHTCap //pointer to store Capability Ele 540 * u8* len //store length of CE 541 * u8 IsEncrypt //whether encrypt, needed further 542 * output: none 543 * return: none 544 * notice: posHTCap can't be null and should be initialized before. 545 * *****************************************************************************************************************/ 546 void HTConstructCapabilityElement(struct ieee80211_device *ieee, u8 *posHTCap, u8 *len, u8 IsEncrypt) 547 { 548 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo; 549 PHT_CAPABILITY_ELE pCapELE = NULL; 550 //u8 bIsDeclareMCS13; 551 552 if ((posHTCap == NULL) || (pHT == NULL)) 553 { 554 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n"); 555 return; 556 } 557 memset(posHTCap, 0, *len); 558 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) 559 { 560 u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily 561 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap)); 562 pCapELE = (PHT_CAPABILITY_ELE)&(posHTCap[4]); 563 }else 564 { 565 pCapELE = (PHT_CAPABILITY_ELE)posHTCap; 566 } 567 568 569 //HT capability info 570 pCapELE->AdvCoding = 0; // This feature is not supported now!! 571 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) 572 { 573 pCapELE->ChlWidth = 0; 574 } 575 else 576 { 577 pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0); 578 } 579 580 // pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0); 581 pCapELE->MimoPwrSave = pHT->SelfMimoPs; 582 pCapELE->GreenField = 0; // This feature is not supported now!! 583 pCapELE->ShortGI20Mhz = 1; // We can receive Short GI!! 584 pCapELE->ShortGI40Mhz = 1; // We can receive Short GI!! 585 //DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r", 586 //pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz); 587 pCapELE->TxSTBC = 1; 588 pCapELE->RxSTBC = 0; 589 pCapELE->DelayBA = 0; // Do not support now!! 590 pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0; 591 pCapELE->DssCCk = ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0); 592 pCapELE->PSMP = 0; // Do not support now!! 593 pCapELE->LSigTxopProtect = 0; // Do not support now!! 594 595 596 //MAC HT parameters info 597 // TODO: Nedd to take care of this part 598 IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk); 599 600 if (IsEncrypt) { 601 pCapELE->MPDUDensity = 7; // 8us 602 pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K 603 } 604 else 605 { 606 pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K 607 pCapELE->MPDUDensity = 0; // no density 608 } 609 610 //Supported MCS set 611 memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16); 612 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15) 613 pCapELE->MCS[1] &= 0x7f; 614 615 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14) 616 pCapELE->MCS[1] &= 0xbf; 617 618 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS) 619 pCapELE->MCS[1] &= 0x00; 620 621 // 2008.06.12 622 // For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7. 623 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) 624 { 625 int i; 626 for(i = 1; i< 16; i++) 627 pCapELE->MCS[i] = 0; 628 } 629 630 //Extended HT Capability Info 631 memset(&pCapELE->ExtHTCapInfo, 0, 2); 632 633 634 //TXBF Capabilities 635 memset(pCapELE->TxBFCap, 0, 4); 636 637 //Antenna Selection Capabilities 638 pCapELE->ASCap = 0; 639 //add 2 to give space for element ID and len when construct frames 640 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) 641 *len = 30 + 2; 642 else 643 *len = 26 + 2; 644 645 646 647 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2); 648 649 //Print each field in detail. Driver should not print out this message by default 650 // HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()"); 651 return; 652 653 } 654 /******************************************************************************************************************** 655 *function: Construct Information Element in Beacon... if HTEnable is turned on 656 * input: struct ieee80211_device* ieee 657 * u8* posHTCap //pointer to store Information Ele 658 * u8* len //store len of 659 * u8 IsEncrypt //whether encrypt, needed further 660 * output: none 661 * return: none 662 * notice: posHTCap can't be null and be initialized before. only AP and IBSS sta should do this 663 * *****************************************************************************************************************/ 664 void HTConstructInfoElement(struct ieee80211_device *ieee, u8 *posHTInfo, u8 *len, u8 IsEncrypt) 665 { 666 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo; 667 PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo; 668 if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) 669 { 670 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n"); 671 return; 672 } 673 674 memset(posHTInfo, 0, *len); 675 if ( (ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) //ap mode is not currently supported 676 { 677 pHTInfoEle->ControlChl = ieee->current_network.channel; 678 pHTInfoEle->ExtChlOffset = ((!pHT->bRegBW40MHz)?HT_EXTCHNL_OFFSET_NO_EXT: 679 (ieee->current_network.channel<=6)? 680 HT_EXTCHNL_OFFSET_UPPER:HT_EXTCHNL_OFFSET_LOWER); 681 pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz; 682 pHTInfoEle->RIFS = 0; 683 pHTInfoEle->PSMPAccessOnly = 0; 684 pHTInfoEle->SrvIntGranularity = 0; 685 pHTInfoEle->OptMode = pHT->CurrentOpMode; 686 pHTInfoEle->NonGFDevPresent = 0; 687 pHTInfoEle->DualBeacon = 0; 688 pHTInfoEle->SecondaryBeacon = 0; 689 pHTInfoEle->LSigTxopProtectFull = 0; 690 pHTInfoEle->PcoActive = 0; 691 pHTInfoEle->PcoPhase = 0; 692 693 memset(pHTInfoEle->BasicMSC, 0, 16); 694 695 696 *len = 22 + 2; //same above 697 698 } 699 else 700 { 701 //STA should not generate High Throughput Information Element 702 *len = 0; 703 } 704 //IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2); 705 //HTDebugHTInfo(posHTInfo, "HTConstructInforElement"); 706 return; 707 } 708 709 /* 710 * According to experiment, Realtek AP to STA (based on rtl8190) may achieve best performance 711 * if both STA and AP set limitation of aggregation size to 32K, that is, set AMPDU density to 2 712 * (Ref: IEEE 11n specification). However, if Realtek STA associates to other AP, STA should set 713 * limitation of aggregation size to 8K, otherwise, performance of traffic stream from STA to AP 714 * will be much less than the traffic stream from AP to STA if both of the stream runs concurrently 715 * at the same time. 716 * 717 * Frame Format 718 * Element ID Length OUI Type1 Reserved 719 * 1 byte 1 byte 3 bytes 1 byte 1 byte 720 * 721 * OUI = 0x00, 0xe0, 0x4c, 722 * Type = 0x02 723 * Reserved = 0x00 724 * 725 * 2007.8.21 by Emily 726 */ 727 /******************************************************************************************************************** 728 *function: Construct Information Element in Beacon... in RT2RT condition 729 * input: struct ieee80211_device* ieee 730 * u8* posRT2RTAgg //pointer to store Information Ele 731 * u8* len //store len 732 * output: none 733 * return: none 734 * notice: 735 * *****************************************************************************************************************/ 736 void HTConstructRT2RTAggElement(struct ieee80211_device *ieee, u8 *posRT2RTAgg, u8 *len) 737 { 738 if (posRT2RTAgg == NULL) { 739 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n"); 740 return; 741 } 742 memset(posRT2RTAgg, 0, *len); 743 *posRT2RTAgg++ = 0x00; 744 *posRT2RTAgg++ = 0xe0; 745 *posRT2RTAgg++ = 0x4c; 746 *posRT2RTAgg++ = 0x02; 747 *posRT2RTAgg++ = 0x01; 748 *posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02; 749 750 if (ieee->bSupportRemoteWakeUp) { 751 *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW; 752 } 753 754 *len = 6 + 2; 755 return; 756 #ifdef TODO 757 #if (HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE) 758 /* 759 //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this 760 section of code. 761 if(IS_UNDER_11N_AES_MODE(Adapter)) 762 { 763 posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU; 764 }else 765 { 766 posRT2RTAgg->Octet[5] &= 0xfb; 767 } 768 */ 769 770 #else 771 // Do Nothing 772 #endif 773 774 posRT2RTAgg->Length = 6; 775 #endif 776 777 778 779 780 } 781 782 783 /******************************************************************************************************************** 784 *function: Pick the right Rate Adaptive table to use 785 * input: struct ieee80211_device* ieee 786 * u8* pOperateMCS //A pointer to MCS rate bitmap 787 * return: always we return true 788 * notice: 789 * *****************************************************************************************************************/ 790 static u8 HT_PickMCSRate(struct ieee80211_device *ieee, u8 *pOperateMCS) 791 { 792 u8 i; 793 if (pOperateMCS == NULL) 794 { 795 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n"); 796 return false; 797 } 798 799 switch (ieee->mode) 800 { 801 case IEEE_A: 802 case IEEE_B: 803 case IEEE_G: 804 //legacy rate routine handled at selectedrate 805 806 //no MCS rate 807 for(i=0;i<=15;i++){ 808 pOperateMCS[i] = 0; 809 } 810 break; 811 812 case IEEE_N_24G: //assume CCK rate ok 813 case IEEE_N_5G: 814 // Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G. 815 // Legacy part shall be handled at SelectRateSet(). 816 817 //HT part 818 // TODO: may be different if we have different number of antenna 819 pOperateMCS[0] &=RATE_ADPT_1SS_MASK; //support MCS 0~7 820 pOperateMCS[1] &=RATE_ADPT_2SS_MASK; 821 pOperateMCS[3] &=RATE_ADPT_MCS32_MASK; 822 break; 823 824 //should never reach here 825 default: 826 827 break; 828 829 } 830 831 return true; 832 } 833 834 /* 835 * Description: 836 * This function will get the highest speed rate in input MCS set. 837 * 838 * /param Adapter Pionter to Adapter entity 839 * pMCSRateSet Pointer to MCS rate bitmap 840 * pMCSFilter Pointer to MCS rate filter 841 * 842 * /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter. 843 * 844 */ 845 /******************************************************************************************************************** 846 *function: This function will get the highest speed rate in input MCS set. 847 * input: struct ieee80211_device* ieee 848 * u8* pMCSRateSet //Pointer to MCS rate bitmap 849 * u8* pMCSFilter //Pointer to MCS rate filter 850 * return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter 851 * notice: 852 * *****************************************************************************************************************/ 853 u8 HTGetHighestMCSRate(struct ieee80211_device *ieee, u8 *pMCSRateSet, u8 *pMCSFilter) 854 { 855 u8 i, j; 856 u8 bitMap; 857 u8 mcsRate = 0; 858 u8 availableMcsRate[16]; 859 if (pMCSRateSet == NULL || pMCSFilter == NULL) 860 { 861 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n"); 862 return false; 863 } 864 for(i=0; i<16; i++) 865 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i]; 866 867 for(i = 0; i < 16; i++) 868 { 869 if(availableMcsRate[i] != 0) 870 break; 871 } 872 if(i == 16) 873 return false; 874 875 for(i = 0; i < 16; i++) 876 { 877 if (availableMcsRate[i] != 0) 878 { 879 bitMap = availableMcsRate[i]; 880 for(j = 0; j < 8; j++) 881 { 882 if ((bitMap%2) != 0) 883 { 884 if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate)) 885 mcsRate = (8*i+j); 886 } 887 bitMap >>= 1; 888 } 889 } 890 } 891 return (mcsRate|0x80); 892 } 893 894 895 896 /* 897 ** 898 **1.Filter our operation rate set with AP's rate set 899 **2.shall reference channel bandwidth, STBC, Antenna number 900 **3.generate rate adative table for firmware 901 **David 20060906 902 ** 903 ** \pHTSupportedCap: the connected STA's supported rate Capability element 904 */ 905 static u8 HTFilterMCSRate(struct ieee80211_device *ieee, u8 *pSupportMCS, 906 u8 *pOperateMCS) 907 { 908 909 u8 i=0; 910 911 // filter out operational rate set not supported by AP, the length of it is 16 912 for(i=0;i<=15;i++){ 913 pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i]; 914 } 915 916 917 // TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number 918 919 // TODO: fill suggested rate adaptive rate index and give firmware info using Tx command packet 920 // we also shall suggested the first start rate set according to our singal strength 921 HT_PickMCSRate(ieee, pOperateMCS); 922 923 // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7. 924 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) 925 pOperateMCS[1] = 0; 926 927 // 928 // For RTL819X, we support only MCS0~15. 929 // And also, we do not know how to use MCS32 now. 930 // 931 for(i=2; i<=15; i++) 932 pOperateMCS[i] = 0; 933 934 return true; 935 } 936 void HTSetConnectBwMode(struct ieee80211_device *ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset); 937 void HTOnAssocRsp(struct ieee80211_device *ieee) 938 { 939 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 940 PHT_CAPABILITY_ELE pPeerHTCap = NULL; 941 PHT_INFORMATION_ELE pPeerHTInfo = NULL; 942 u16 nMaxAMSDUSize = 0; 943 u8 *pMcsFilter = NULL; 944 945 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily 946 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily 947 948 if (!pHTInfo->bCurrentHTSupport) { 949 IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n"); 950 return; 951 } 952 IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n"); 953 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE)); 954 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE)); 955 956 // HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq"); 957 // HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq"); 958 // 959 if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap))) 960 pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]); 961 else 962 pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf); 963 964 if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo))) 965 pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]); 966 else 967 pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf); 968 969 970 //////////////////////////////////////////////////////// 971 // Configurations: 972 //////////////////////////////////////////////////////// 973 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE)); 974 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE)); 975 // Config Supported Channel Width setting 976 // 977 HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset)); 978 979 // if (pHTInfo->bCurBW40MHz) 980 pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false); 981 982 // 983 // Update short GI/ long GI setting 984 // 985 // TODO: 986 pHTInfo->bCurShortGI20MHz= 987 ((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false); 988 pHTInfo->bCurShortGI40MHz= 989 ((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false); 990 991 // 992 // Config TX STBC setting 993 // 994 // TODO: 995 996 // 997 // Config DSSS/CCK mode in 40MHz mode 998 // 999 // TODO: 1000 pHTInfo->bCurSuppCCK = 1001 ((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false); 1002 1003 1004 // 1005 // Config and configure A-MSDU setting 1006 // 1007 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support; 1008 1009 nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935; 1010 1011 if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize ) 1012 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize; 1013 else 1014 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; 1015 1016 1017 // 1018 // Config A-MPDU setting 1019 // 1020 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable; 1021 1022 // <1> Decide AMPDU Factor 1023 1024 // By Emily 1025 if(!pHTInfo->bRegRT2RTAggregation) 1026 { 1027 // Decide AMPDU Factor according to protocol handshake 1028 if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor) 1029 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; 1030 else 1031 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; 1032 1033 }else 1034 { 1035 // Set MPDU density to 2 to Realtek AP, and set it to 0 for others 1036 // Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily 1037 if (ieee->current_network.bssht.bdRT2RTAggregation) 1038 { 1039 if (ieee->pairwise_key_type != KEY_TYPE_NA) 1040 // Realtek may set 32k in security mode and 64k for others 1041 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; 1042 else 1043 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K; 1044 }else 1045 { 1046 if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K) 1047 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; 1048 else 1049 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K; 1050 } 1051 } 1052 1053 // <2> Set AMPDU Minimum MPDU Start Spacing 1054 // 802.11n 3.0 section 9.7d.3 1055 if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity) 1056 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density; 1057 else 1058 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity; 1059 if(ieee->pairwise_key_type != KEY_TYPE_NA ) 1060 pHTInfo->CurrentMPDUDensity = 7; // 8us 1061 // Force TX AMSDU 1062 1063 // Lanhsin: mark for tmp to avoid deauth by ap from s3 1064 //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0) 1065 if (0) 1066 { 1067 1068 pHTInfo->bCurrentAMPDUEnable = false; 1069 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE; 1070 pHTInfo->ForcedAMSDUMaxSize = 7935; 1071 1072 pHTInfo->IOTAction |= HT_IOT_ACT_TX_USE_AMSDU_8K; 1073 } 1074 1075 // Rx Reorder Setting 1076 pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable; 1077 1078 // 1079 // Filter out unsupported HT rate for this AP 1080 // Update RATR table 1081 // This is only for 8190 ,8192 or later product which using firmware to handle rate adaptive mechanism. 1082 // 1083 1084 // Handle Ralink AP bad MCS rate set condition. Joseph. 1085 // This fix the bug of Ralink AP. This may be removed in the future. 1086 if(pPeerHTCap->MCS[0] == 0) 1087 pPeerHTCap->MCS[0] = 0xff; 1088 1089 HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet); 1090 1091 // 1092 // Config MIMO Power Save setting 1093 // 1094 pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave; 1095 if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC) 1096 pMcsFilter = MCS_FILTER_1SS; 1097 else 1098 pMcsFilter = MCS_FILTER_ALL; 1099 //WB add for MCS8 bug 1100 // pMcsFilter = MCS_FILTER_1SS; 1101 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter); 1102 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate; 1103 1104 // 1105 // Config current operation mode. 1106 // 1107 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode; 1108 1109 1110 1111 } 1112 1113 void HTSetConnectBwModeCallback(struct ieee80211_device *ieee); 1114 /******************************************************************************************************************** 1115 *function: initialize HT info(struct PRT_HIGH_THROUGHPUT) 1116 * input: struct ieee80211_device* ieee 1117 * output: none 1118 * return: none 1119 * notice: This function is called when * (1) MPInitialization Phase * (2) Receiving of Deauthentication from AP 1120 ********************************************************************************************************************/ 1121 // TODO: Should this funciton be called when receiving of Disassociation? 1122 void HTInitializeHTInfo(struct ieee80211_device *ieee) 1123 { 1124 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1125 1126 // 1127 // These parameters will be reset when receiving deauthentication packet 1128 // 1129 IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __func__); 1130 pHTInfo->bCurrentHTSupport = false; 1131 1132 // 40MHz channel support 1133 pHTInfo->bCurBW40MHz = false; 1134 pHTInfo->bCurTxBW40MHz = false; 1135 1136 // Short GI support 1137 pHTInfo->bCurShortGI20MHz = false; 1138 pHTInfo->bCurShortGI40MHz = false; 1139 pHTInfo->bForcedShortGI = false; 1140 1141 // CCK rate support 1142 // This flag is set to true to support CCK rate by default. 1143 // It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities only when associate to 1144 // 11N BSS. 1145 pHTInfo->bCurSuppCCK = true; 1146 1147 // AMSDU related 1148 pHTInfo->bCurrent_AMSDU_Support = false; 1149 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; 1150 1151 // AMPUD related 1152 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density; 1153 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; 1154 1155 1156 1157 // Initialize all of the parameters related to 11n 1158 memset((void *)(&(pHTInfo->SelfHTCap)), 0, sizeof(pHTInfo->SelfHTCap)); 1159 memset((void *)(&(pHTInfo->SelfHTInfo)), 0, sizeof(pHTInfo->SelfHTInfo)); 1160 memset((void *)(&(pHTInfo->PeerHTCapBuf)), 0, sizeof(pHTInfo->PeerHTCapBuf)); 1161 memset((void *)(&(pHTInfo->PeerHTInfoBuf)), 0, sizeof(pHTInfo->PeerHTInfoBuf)); 1162 1163 pHTInfo->bSwBwInProgress = false; 1164 pHTInfo->ChnlOp = CHNLOP_NONE; 1165 1166 // Set default IEEE spec for Draft N 1167 pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE; 1168 1169 // Realtek proprietary aggregation mode 1170 pHTInfo->bCurrentRT2RTAggregation = false; 1171 pHTInfo->bCurrentRT2RTLongSlotTime = false; 1172 pHTInfo->IOTPeer = 0; 1173 pHTInfo->IOTAction = 0; 1174 1175 //MCS rate initialized here 1176 { 1177 u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]); 1178 RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7 1179 RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15 1180 RegHTSuppRateSets[4] = 0x01; //support MCS 32 1181 } 1182 } 1183 /******************************************************************************************************************** 1184 *function: initialize Bss HT structure(struct PBSS_HT) 1185 * input: PBSS_HT pBssHT //to be initialized 1186 * output: none 1187 * return: none 1188 * notice: This function is called when initialize network structure 1189 ********************************************************************************************************************/ 1190 void HTInitializeBssDesc(PBSS_HT pBssHT) 1191 { 1192 1193 pBssHT->bdSupportHT = false; 1194 memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf)); 1195 pBssHT->bdHTCapLen = 0; 1196 memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf)); 1197 pBssHT->bdHTInfoLen = 0; 1198 1199 pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE; 1200 1201 pBssHT->bdRT2RTAggregation = false; 1202 pBssHT->bdRT2RTLongSlotTime = false; 1203 } 1204 /******************************************************************************************************************** 1205 *function: initialize Bss HT structure(struct PBSS_HT) 1206 * input: struct ieee80211_device *ieee 1207 * struct ieee80211_network *pNetwork //usually current network we are live in 1208 * output: none 1209 * return: none 1210 * notice: This function should ONLY be called before association 1211 ********************************************************************************************************************/ 1212 void HTResetSelfAndSavePeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork) 1213 { 1214 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1215 // u16 nMaxAMSDUSize; 1216 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf; 1217 // PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf; 1218 // u8* pMcsFilter; 1219 u8 bIOTAction = 0; 1220 1221 // 1222 // Save Peer Setting before Association 1223 // 1224 IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __func__); 1225 /*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/ 1226 // if( pHTInfo->bEnableHT && pNetwork->bssht.bdSupportHT) 1227 if (pNetwork->bssht.bdSupportHT) 1228 { 1229 pHTInfo->bCurrentHTSupport = true; 1230 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer; 1231 1232 // Save HTCap and HTInfo information Element 1233 if(pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf)) 1234 memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen); 1235 1236 if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf)) 1237 memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen); 1238 1239 // Check whether RT to RT aggregation mode is enabled 1240 if(pHTInfo->bRegRT2RTAggregation) 1241 { 1242 pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation; 1243 pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime; 1244 } 1245 else 1246 { 1247 pHTInfo->bCurrentRT2RTAggregation = false; 1248 pHTInfo->bCurrentRT2RTLongSlotTime = false; 1249 } 1250 1251 // Determine the IOT Peer Vendor. 1252 HTIOTPeerDetermine(ieee); 1253 1254 // Decide IOT Action 1255 // Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided 1256 pHTInfo->IOTAction = 0; 1257 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid); 1258 if(bIOTAction) 1259 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14; 1260 1261 bIOTAction = HTIOTActIsDisableMCS15(ieee); 1262 if(bIOTAction) 1263 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15; 1264 1265 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid); 1266 if(bIOTAction) 1267 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS; 1268 1269 1270 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid); 1271 if(bIOTAction) 1272 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO; 1273 1274 bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork); 1275 if(bIOTAction) 1276 pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M; 1277 1278 bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid); 1279 if(bIOTAction) 1280 pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC; 1281 1282 1283 } 1284 else 1285 { 1286 pHTInfo->bCurrentHTSupport = false; 1287 pHTInfo->bCurrentRT2RTAggregation = false; 1288 pHTInfo->bCurrentRT2RTLongSlotTime = false; 1289 1290 pHTInfo->IOTAction = 0; 1291 } 1292 1293 } 1294 1295 void HTUpdateSelfAndPeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork) 1296 { 1297 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1298 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf; 1299 PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf; 1300 1301 if (pHTInfo->bCurrentHTSupport) 1302 { 1303 // 1304 // Config current operation mode. 1305 // 1306 if(pNetwork->bssht.bdHTInfoLen != 0) 1307 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode; 1308 1309 // 1310 // <TODO: Config according to OBSS non-HT STA present!!> 1311 // 1312 } 1313 } 1314 EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting); 1315 1316 /******************************************************************************************************************** 1317 *function: check whether HT control field exists 1318 * input: struct ieee80211_device *ieee 1319 * u8* pFrame //coming skb->data 1320 * output: none 1321 * return: return true if HT control field exists(false otherwise) 1322 * notice: 1323 ********************************************************************************************************************/ 1324 u8 HTCCheck(struct ieee80211_device *ieee, u8 *pFrame) 1325 { 1326 if (ieee->pHTInfo->bCurrentHTSupport) 1327 { 1328 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) { 1329 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n"); 1330 return true; 1331 } 1332 } 1333 return false; 1334 } 1335 1336 // 1337 // This function set bandwidth mode in protocol layer. 1338 // 1339 void HTSetConnectBwMode(struct ieee80211_device *ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset) 1340 { 1341 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1342 // u32 flags = 0; 1343 1344 if(!pHTInfo->bRegBW40MHz) 1345 return; 1346 1347 1348 1349 // To reduce dummy operation 1350 // if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) || 1351 // (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset)) 1352 // return; 1353 1354 // spin_lock_irqsave(&(ieee->bw_spinlock), flags); 1355 if (pHTInfo->bSwBwInProgress) { 1356 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags); 1357 return; 1358 } 1359 //if in half N mode, set to 20M bandwidth please 09.08.2008 WB. 1360 if(Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))) 1361 { 1362 // Handle Illegal extension channel offset!! 1363 if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER) 1364 Offset = HT_EXTCHNL_OFFSET_NO_EXT; 1365 if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) { 1366 pHTInfo->bCurBW40MHz = true; 1367 pHTInfo->CurSTAExtChnlOffset = Offset; 1368 } else { 1369 pHTInfo->bCurBW40MHz = false; 1370 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT; 1371 } 1372 } else { 1373 pHTInfo->bCurBW40MHz = false; 1374 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT; 1375 } 1376 1377 pHTInfo->bSwBwInProgress = true; 1378 1379 // TODO: 2007.7.13 by Emily Wait 2000ms in order to guarantee that switching 1380 // bandwidth is executed after scan is finished. It is a temporal solution 1381 // because software should ganrantee the last operation of switching bandwidth 1382 // is executed properlly. 1383 HTSetConnectBwModeCallback(ieee); 1384 1385 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags); 1386 } 1387 1388 void HTSetConnectBwModeCallback(struct ieee80211_device *ieee) 1389 { 1390 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1391 1392 IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __func__); 1393 1394 if(pHTInfo->bCurBW40MHz) 1395 { 1396 if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_UPPER) 1397 ieee->set_chan(ieee->dev, ieee->current_network.channel+2); 1398 else if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_LOWER) 1399 ieee->set_chan(ieee->dev, ieee->current_network.channel-2); 1400 else 1401 ieee->set_chan(ieee->dev, ieee->current_network.channel); 1402 1403 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset); 1404 } else { 1405 ieee->set_chan(ieee->dev, ieee->current_network.channel); 1406 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT); 1407 } 1408 1409 pHTInfo->bSwBwInProgress = false; 1410 } 1411