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" 5u8 MCS_FILTER_ALL[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; 6 7u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; 8 9u16 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 32static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf}; 33static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70}; 34static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e}; 35//static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f}; 36static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f}; //cosa 03202008 37static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf}; 38static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc}; 39static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e}; 40static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02}; 41static u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0}; 42static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94}; 43static 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 * *****************************************************************************************************************/ 55void HTUpdateDefaultSetting(struct ieee80211_device* ieee) 56{ 57 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 58 //const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo; 59 60 //printk("pHTinfo:%p, &pHTinfo:%p, mptr:%p, offsetof:%x\n", pHTInfo, &pHTInfo, __mptr, offsetof(struct ieee80211_device, pHTInfo)); 61 //printk("===>ieee:%p,\n", ieee); 62 // ShortGI support 63 pHTInfo->bRegShortGI20MHz= 1; 64 pHTInfo->bRegShortGI40MHz= 1; 65 66 // 40MHz channel support 67 pHTInfo->bRegBW40MHz = 1; 68 69 // CCK rate support in 40MHz channel 70 if(pHTInfo->bRegBW40MHz) 71 pHTInfo->bRegSuppCCK = 1; 72 else 73 pHTInfo->bRegSuppCCK = true; 74 75 // AMSDU related 76 pHTInfo->nAMSDU_MaxSize = 7935UL; 77 pHTInfo->bAMSDU_Support = 0; 78 79 // AMPDU related 80 pHTInfo->bAMPDUEnable = 1; 81 pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k) 82 pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec 83 84 // MIMO Power Save 85 pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.) 86 if(pHTInfo->SelfMimoPs == 2) 87 pHTInfo->SelfMimoPs = 3; 88 // 8190 only. Assign rate operation mode to firmware 89 ieee->bTxDisableRateFallBack = 0; 90 ieee->bTxUseDriverAssingedRate = 0; 91 92#ifdef TO_DO_LIST 93 // 8190 only. Assign duration operation mode to firmware 94 pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur; 95#endif 96 // 8190 only, Realtek proprietary aggregation mode 97 // Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others 98 pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others 99 100 // For Rx Reorder Control 101 pHTInfo->bRegRxReorderEnable = 1; 102 pHTInfo->RxReorderWinSize = 64; 103 pHTInfo->RxReorderPendingTime = 30; 104 105#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE 106 pHTInfo->UsbTxAggrNum = 4; 107#endif 108#ifdef USB_RX_AGGREGATION_SUPPORT 109 pHTInfo->UsbRxFwAggrEn = 1; 110 pHTInfo->UsbRxFwAggrPageNum = 24; 111 pHTInfo->UsbRxFwAggrPacketNum = 8; 112 pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us 113#endif 114 115 116} 117/******************************************************************************************************************** 118 *function: This function print out each field on HT capability IE mainly from (Beacon/ProbeRsp/AssocReq) 119 * input: u8* CapIE //Capability IE to be printed out 120 * u8* TitleString //mainly print out caller function 121 * output: none 122 * return: none 123 * notice: Driver should not print out this message by default. 124 * *****************************************************************************************************************/ 125void HTDebugHTCapability(u8* CapIE, u8* TitleString ) 126{ 127 128 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily 129 PHT_CAPABILITY_ELE pCapELE; 130 131 if(!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) 132 { 133 //EWC IE 134 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__); 135 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[4]); 136 }else 137 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[0]); 138 139 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Capability>. Called by %s\n", TitleString ); 140 141 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupported Channel Width = %s\n", (pCapELE->ChlWidth)?"20MHz": "20/40MHz"); 142 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 20M = %s\n", (pCapELE->ShortGI20Mhz)?"YES": "NO"); 143 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 40M = %s\n", (pCapELE->ShortGI40Mhz)?"YES": "NO"); 144 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport TX STBC = %s\n", (pCapELE->TxSTBC)?"YES": "NO"); 145 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMSDU Size = %s\n", (pCapELE->MaxAMSDUSize)?"3839": "7935"); 146 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport CCK in 20/40 mode = %s\n", (pCapELE->DssCCk)?"YES": "NO"); 147 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMPDU Factor = %d\n", pCapELE->MaxRxAMPDUFactor); 148 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMPDU Density = %d\n", pCapELE->MPDUDensity); 149 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n", pCapELE->MCS[0],\ 150 pCapELE->MCS[1], pCapELE->MCS[2], pCapELE->MCS[3], pCapELE->MCS[4]); 151 return; 152 153} 154/******************************************************************************************************************** 155 *function: This function print out each field on HT Information IE mainly from (Beacon/ProbeRsp) 156 * input: u8* InfoIE //Capability IE to be printed out 157 * u8* TitleString //mainly print out caller function 158 * output: none 159 * return: none 160 * notice: Driver should not print out this message by default. 161 * *****************************************************************************************************************/ 162void HTDebugHTInfo(u8* InfoIE, u8* TitleString) 163{ 164 165 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily 166 PHT_INFORMATION_ELE pHTInfoEle; 167 168 if(!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo))) 169 { 170 // Not EWC IE 171 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__); 172 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]); 173 }else 174 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]); 175 176 177 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Information Element>. Called by %s\n", TitleString); 178 179 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl); 180 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSenondary channel ="); 181 switch(pHTInfoEle->ExtChlOffset) 182 { 183 case 0: 184 IEEE80211_DEBUG(IEEE80211_DL_HT, "Not Present\n"); 185 break; 186 case 1: 187 IEEE80211_DEBUG(IEEE80211_DL_HT, "Upper channel\n"); 188 break; 189 case 2: 190 IEEE80211_DEBUG(IEEE80211_DL_HT, "Reserved. Eooro!!!\n"); 191 break; 192 case 3: 193 IEEE80211_DEBUG(IEEE80211_DL_HT, "Lower Channel\n"); 194 break; 195 } 196 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tRecommended channel width = %s\n", (pHTInfoEle->RecommemdedTxWidth)?"20Mhz": "40Mhz"); 197 198 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tOperation mode for protection = "); 199 switch(pHTInfoEle->OptMode) 200 { 201 case 0: 202 IEEE80211_DEBUG(IEEE80211_DL_HT, "No Protection\n"); 203 break; 204 case 1: 205 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT non-member protection mode\n"); 206 break; 207 case 2: 208 IEEE80211_DEBUG(IEEE80211_DL_HT, "Suggest to open protection\n"); 209 break; 210 case 3: 211 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT mixed mode\n"); 212 break; 213 } 214 215 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x][%x]\n", pHTInfoEle->BasicMSC[0],\ 216 pHTInfoEle->BasicMSC[1], pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3], pHTInfoEle->BasicMSC[4]); 217 return; 218} 219 220/* 221* Return: true if station in half n mode and AP supports 40 bw 222*/ 223bool IsHTHalfNmode40Bandwidth(struct ieee80211_device* ieee) 224{ 225 bool retValue = false; 226 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 227 228 if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode 229 retValue = false; 230 else if(pHTInfo->bRegBW40MHz == false) // station supports 40 bw 231 retValue = false; 232 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode 233 retValue = false; 234 else if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ChlWidth) // ap support 40 bw 235 retValue = true; 236 else 237 retValue = false; 238 239 return retValue; 240} 241 242bool IsHTHalfNmodeSGI(struct ieee80211_device* ieee, bool is40MHz) 243{ 244 bool retValue = false; 245 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 246 247 if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode 248 retValue = false; 249 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode 250 retValue = false; 251 else if(is40MHz) // ap support 40 bw 252 { 253 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI40Mhz) // ap support 40 bw short GI 254 retValue = true; 255 else 256 retValue = false; 257 } 258 else 259 { 260 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI20Mhz) // ap support 40 bw short GI 261 retValue = true; 262 else 263 retValue = false; 264 } 265 266 return retValue; 267} 268 269u16 HTHalfMcsToDataRate(struct ieee80211_device* ieee, u8 nMcsRate) 270{ 271 272 u8 is40MHz; 273 u8 isShortGI; 274 275 is40MHz = (IsHTHalfNmode40Bandwidth(ieee))?1:0; 276 isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz))? 1:0; 277 278 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)]; 279} 280 281 282u16 HTMcsToDataRate( struct ieee80211_device* ieee, u8 nMcsRate) 283{ 284 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 285 286 u8 is40MHz = (pHTInfo->bCurBW40MHz)?1:0; 287 u8 isShortGI = (pHTInfo->bCurBW40MHz)? 288 ((pHTInfo->bCurShortGI40MHz)?1:0): 289 ((pHTInfo->bCurShortGI20MHz)?1:0); 290 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)]; 291} 292 293/******************************************************************************************************************** 294 *function: This function returns current datarate. 295 * input: struct ieee80211_device* ieee 296 * u8 nDataRate 297 * output: none 298 * return: tx rate 299 * notice: quite unsure about how to use this function //wb 300 * *****************************************************************************************************************/ 301u16 TxCountToDataRate( struct ieee80211_device* ieee, u8 nDataRate) 302{ 303 //PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 304 u16 CCKOFDMRate[12] = {0x02 , 0x04 , 0x0b , 0x16 , 0x0c , 0x12 , 0x18 , 0x24 , 0x30 , 0x48 , 0x60 , 0x6c}; 305 u8 is40MHz = 0; 306 u8 isShortGI = 0; 307 308 if(nDataRate < 12) 309 { 310 return CCKOFDMRate[nDataRate]; 311 } 312 else 313 { 314 if (nDataRate >= 0x10 && nDataRate <= 0x1f)//if(nDataRate > 11 && nDataRate < 28 ) 315 { 316 is40MHz = 0; 317 isShortGI = 0; 318 319 // nDataRate = nDataRate - 12; 320 } 321 else if(nDataRate >=0x20 && nDataRate <= 0x2f ) //(27, 44) 322 { 323 is40MHz = 1; 324 isShortGI = 0; 325 326 //nDataRate = nDataRate - 28; 327 } 328 else if(nDataRate >= 0x30 && nDataRate <= 0x3f ) //(43, 60) 329 { 330 is40MHz = 0; 331 isShortGI = 1; 332 333 //nDataRate = nDataRate - 44; 334 } 335 else if(nDataRate >= 0x40 && nDataRate <= 0x4f ) //(59, 76) 336 { 337 is40MHz = 1; 338 isShortGI = 1; 339 340 //nDataRate = nDataRate - 60; 341 } 342 return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf]; 343 } 344} 345 346 347 348bool IsHTHalfNmodeAPs(struct ieee80211_device* ieee) 349{ 350 bool retValue = false; 351 struct ieee80211_network* net = &ieee->current_network; 352 if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) || 353 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) || 354 (memcmp(net->bssid, PCI_RALINK, 3)==0) || 355 (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) || 356 (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) || 357 (net->ralink_cap_exist)) 358 retValue = true; 359 else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) || 360 (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)|| 361 (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)|| 362 //(memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) || 363 (net->broadcom_cap_exist)) 364 retValue = true; 365 else if(net->bssht.bdRT2RTAggregation) 366 retValue = true; 367 else 368 retValue = false; 369 370 return retValue; 371} 372 373/******************************************************************************************************************** 374 *function: This function returns peer IOT. 375 * input: struct ieee80211_device* ieee 376 * output: none 377 * return: 378 * notice: 379 * *****************************************************************************************************************/ 380void HTIOTPeerDetermine(struct ieee80211_device* ieee) 381{ 382 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 383 struct ieee80211_network* net = &ieee->current_network; 384 if(net->bssht.bdRT2RTAggregation) 385 pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK; 386 else if(net->broadcom_cap_exist){ 387 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM; 388 } 389 else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) || 390 (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)|| 391 (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)){//|| 392 //(memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) ){ 393 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM; 394 } 395 else if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) || 396 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) || 397 (memcmp(net->bssid, PCI_RALINK, 3)==0) || 398 (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) || 399 (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) || 400 net->ralink_cap_exist) 401 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK; 402 else if((net->atheros_cap_exist )|| (memcmp(net->bssid, DLINK_ATHEROS, 3) == 0)) 403 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS; 404 else if(memcmp(net->bssid, CISCO_BROADCOM, 3)==0) 405 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO; 406 else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) || 407 net->marvell_cap_exist){ 408 pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL; 409 } 410 else 411 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN; 412 413 IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer); 414} 415/******************************************************************************************************************** 416 *function: Check whether driver should declare received rate up to MCS13 only since some chipset is not good 417 * at receiving MCS14~15 frame from some AP. 418 * input: struct ieee80211_device* ieee 419 * u8 * PeerMacAddr 420 * output: none 421 * return: return 1 if driver should declare MCS13 only(otherwise return 0) 422 * *****************************************************************************************************************/ 423u8 HTIOTActIsDisableMCS14(struct ieee80211_device* ieee, u8* PeerMacAddr) 424{ 425 u8 ret = 0; 426 return ret; 427 } 428 429u8 HTIOTActIsForcedCTS2Self(struct ieee80211_device *ieee, struct ieee80211_network *network) 430{ 431 u8 retValue = 0; 432 //if(network->marvell_cap_exist) 433 if(ieee->pHTInfo->IOTPeer == HT_IOT_PEER_MARVELL) 434 { 435 retValue = 1; 436 } 437 438 return retValue; 439} 440 441 442/** 443* Function: HTIOTActIsDisableMCS15 444* 445* Overview: Check whether driver should declare capability of receving MCS15 446* 447* Input: 448* PADAPTER Adapter, 449* 450* Output: None 451* Return: true if driver should disable MCS15 452* 2008.04.15 Emily 453*/ 454bool HTIOTActIsDisableMCS15(struct ieee80211_device* ieee) 455{ 456 bool retValue = false; 457 458#ifdef TODO 459 // Apply for 819u only 460#if HAL_CODE_BASE==RTL8192 461 462#if (DEV_BUS_TYPE == USB_INTERFACE) 463 // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15 464 retValue = true; 465#elif (DEV_BUS_TYPE == PCI_INTERFACE) 466 // Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12 467// if(pBssDesc->bCiscoCapExist) 468// retValue = false; 469// else 470 retValue = false; 471#endif 472#endif 473#endif 474 // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15 475 476 return retValue; 477} 478 479/** 480* Function: HTIOTActIsDisableMCSTwoSpatialStream 481* 482* Overview: Check whether driver should declare capability of receving All 2 ss packets 483* 484* Input: 485* PADAPTER Adapter, 486* 487* Output: None 488* Return: true if driver should disable all two spatial stream packet 489* 2008.04.21 Emily 490*/ 491bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device* ieee, u8 *PeerMacAddr) 492{ 493 bool retValue = false; 494 495#ifdef TODO 496 // Apply for 819u only 497//#if (HAL_CODE_BASE==RTL8192) 498 499 //This rule only apply to Belkin(Ralink) AP 500 if(IS_UNDER_11N_AES_MODE(Adapter)) 501 { 502 if((PlatformCompareMemory(PeerMacAddr, BELKINF5D8233V1_RALINK, 3)==0) || 503 (PlatformCompareMemory(PeerMacAddr, PCI_RALINK, 3)==0) || 504 (PlatformCompareMemory(PeerMacAddr, EDIMAX_RALINK, 3)==0)) 505 { 506 //Set True to disable this function. Disable by default, Emily, 2008.04.23 507 retValue = false; 508 } 509 } 510 511//#endif 512#endif 513 return retValue; 514} 515 516/******************************************************************************************************************** 517 *function: Check whether driver should disable EDCA turbo mode 518 * input: struct ieee80211_device* ieee 519 * u8* PeerMacAddr 520 * output: none 521 * return: return 1 if driver should disable EDCA turbo mode(otherwise return 0) 522 * *****************************************************************************************************************/ 523u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device* ieee, u8* PeerMacAddr) 524{ 525 u8 retValue = false; // default enable EDCA Turbo mode. 526 // Set specific EDCA parameter for different AP in DM handler. 527 528 return retValue; 529} 530 531/******************************************************************************************************************** 532 *function: Check whether we need to use OFDM to sned MGNT frame for broadcom AP 533 * input: struct ieee80211_network *network //current network we live 534 * output: none 535 * return: return 1 if true 536 * *****************************************************************************************************************/ 537u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network) 538{ 539 u8 retValue = 0; 540 541 // 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP. 542 // 2008/01/28 MH We must prevent that we select null bssid to link. 543 544 if(network->broadcom_cap_exist) 545 { 546 retValue = 1; 547 } 548 549 return retValue; 550} 551 552u8 HTIOTActIsCCDFsync(u8* PeerMacAddr) 553{ 554 u8 retValue = 0; 555 if( (memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) || 556 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) || 557 (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0)) 558 { 559 retValue = 1; 560 } 561 562 return retValue; 563} 564 565// 566// Send null data for to tell AP that we are awake. 567// 568bool 569HTIOTActIsNullDataPowerSaving(struct ieee80211_device* ieee,struct ieee80211_network *network) 570{ 571 bool retValue = false; 572 573 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 574 { 575 if(pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM) // ||(pBssDesc->Vender == HT_IOT_PEER_ATHEROS && pBssDesc->SubTypeOfVender == HT_IOT_PEER_ATHEROS_DIR635)) 576 return true; 577 578 } 579 return retValue; 580} 581 582void HTResetIOTSetting( 583 PRT_HIGH_THROUGHPUT pHTInfo 584) 585{ 586 pHTInfo->IOTAction = 0; 587 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN; 588} 589 590 591/******************************************************************************************************************** 592 *function: Construct Capablility Element in Beacon... if HTEnable is turned on 593 * input: struct ieee80211_device* ieee 594 * u8* posHTCap //pointer to store Capability Ele 595 * u8* len //store length of CE 596 * u8 IsEncrypt //whether encrypt, needed further 597 * output: none 598 * return: none 599 * notice: posHTCap can't be null and should be initialized before. 600 * *****************************************************************************************************************/ 601void HTConstructCapabilityElement(struct ieee80211_device* ieee, u8* posHTCap, u8* len, u8 IsEncrypt) 602{ 603 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo; 604 PHT_CAPABILITY_ELE pCapELE = NULL; 605 //u8 bIsDeclareMCS13; 606 607 if ((posHTCap == NULL) || (pHT == NULL)) 608 { 609 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n"); 610 return; 611 } 612 memset(posHTCap, 0, *len); 613 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) 614 { 615 u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily 616 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap)); 617 pCapELE = (PHT_CAPABILITY_ELE)&(posHTCap[4]); 618 }else 619 { 620 pCapELE = (PHT_CAPABILITY_ELE)posHTCap; 621 } 622 623 624 //HT capability info 625 pCapELE->AdvCoding = 0; // This feature is not supported now!! 626 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) 627 { 628 pCapELE->ChlWidth = 0; 629 } 630 else 631 { 632 pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0); 633 } 634 635// pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0); 636 pCapELE->MimoPwrSave = pHT->SelfMimoPs; 637 pCapELE->GreenField = 0; // This feature is not supported now!! 638 pCapELE->ShortGI20Mhz = 1; // We can receive Short GI!! 639 pCapELE->ShortGI40Mhz = 1; // We can receive Short GI!! 640 //DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r", 641 //pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz); 642 pCapELE->TxSTBC = 1; 643 pCapELE->RxSTBC = 0; 644 pCapELE->DelayBA = 0; // Do not support now!! 645 pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0; 646 pCapELE->DssCCk = ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0); 647 pCapELE->PSMP = 0; // Do not support now!! 648 pCapELE->LSigTxopProtect = 0; // Do not support now!! 649 650 651 //MAC HT parameters info 652 // TODO: Nedd to take care of this part 653 IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk); 654 655 if( IsEncrypt) 656 { 657 pCapELE->MPDUDensity = 7; // 8us 658 pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K 659 } 660 else 661 { 662 pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K 663 pCapELE->MPDUDensity = 0; // no density 664 } 665 666 //Supported MCS set 667 memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16); 668 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15) 669 pCapELE->MCS[1] &= 0x7f; 670 671 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14) 672 pCapELE->MCS[1] &= 0xbf; 673 674 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS) 675 pCapELE->MCS[1] &= 0x00; 676 677 // 2008.06.12 678 // For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7. 679 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) 680 { 681 int i; 682 for(i = 1; i< 16; i++) 683 pCapELE->MCS[i] = 0; 684 } 685 686 //Extended HT Capability Info 687 memset(&pCapELE->ExtHTCapInfo, 0, 2); 688 689 690 //TXBF Capabilities 691 memset(pCapELE->TxBFCap, 0, 4); 692 693 //Antenna Selection Capabilities 694 pCapELE->ASCap = 0; 695//add 2 to give space for element ID and len when construct frames 696 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) 697 *len = 30 + 2; 698 else 699 *len = 26 + 2; 700 701 702 703// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2); 704 705 //Print each field in detail. Driver should not print out this message by default 706// HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()"); 707 return; 708 709} 710/******************************************************************************************************************** 711 *function: Construct Information Element in Beacon... if HTEnable is turned on 712 * input: struct ieee80211_device* ieee 713 * u8* posHTCap //pointer to store Information Ele 714 * u8* len //store len of 715 * u8 IsEncrypt //whether encrypt, needed further 716 * output: none 717 * return: none 718 * notice: posHTCap can't be null and be initialized before. only AP and IBSS sta should do this 719 * *****************************************************************************************************************/ 720void HTConstructInfoElement(struct ieee80211_device* ieee, u8* posHTInfo, u8* len, u8 IsEncrypt) 721{ 722 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo; 723 PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo; 724 if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) 725 { 726 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n"); 727 return; 728 } 729 730 memset(posHTInfo, 0, *len); 731 if ( (ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) //ap mode is not currently supported 732 { 733 pHTInfoEle->ControlChl = ieee->current_network.channel; 734 pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false)?HT_EXTCHNL_OFFSET_NO_EXT: 735 (ieee->current_network.channel<=6)? 736 HT_EXTCHNL_OFFSET_UPPER:HT_EXTCHNL_OFFSET_LOWER); 737 pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz; 738 pHTInfoEle->RIFS = 0; 739 pHTInfoEle->PSMPAccessOnly = 0; 740 pHTInfoEle->SrvIntGranularity = 0; 741 pHTInfoEle->OptMode = pHT->CurrentOpMode; 742 pHTInfoEle->NonGFDevPresent = 0; 743 pHTInfoEle->DualBeacon = 0; 744 pHTInfoEle->SecondaryBeacon = 0; 745 pHTInfoEle->LSigTxopProtectFull = 0; 746 pHTInfoEle->PcoActive = 0; 747 pHTInfoEle->PcoPhase = 0; 748 749 memset(pHTInfoEle->BasicMSC, 0, 16); 750 751 752 *len = 22 + 2; //same above 753 754 } 755 else 756 { 757 //STA should not generate High Throughput Information Element 758 *len = 0; 759 } 760 //IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2); 761 //HTDebugHTInfo(posHTInfo, "HTConstructInforElement"); 762 return; 763} 764 765/* 766 * According to experiment, Realtek AP to STA (based on rtl8190) may achieve best performance 767 * if both STA and AP set limitation of aggregation size to 32K, that is, set AMPDU density to 2 768 * (Ref: IEEE 11n specification). However, if Realtek STA associates to other AP, STA should set 769 * limitation of aggregation size to 8K, otherwise, performance of traffic stream from STA to AP 770 * will be much less than the traffic stream from AP to STA if both of the stream runs concurrently 771 * at the same time. 772 * 773 * Frame Format 774 * Element ID Length OUI Type1 Reserved 775 * 1 byte 1 byte 3 bytes 1 byte 1 byte 776 * 777 * OUI = 0x00, 0xe0, 0x4c, 778 * Type = 0x02 779 * Reserved = 0x00 780 * 781 * 2007.8.21 by Emily 782*/ 783/******************************************************************************************************************** 784 *function: Construct Information Element in Beacon... in RT2RT condition 785 * input: struct ieee80211_device* ieee 786 * u8* posRT2RTAgg //pointer to store Information Ele 787 * u8* len //store len 788 * output: none 789 * return: none 790 * notice: 791 * *****************************************************************************************************************/ 792void HTConstructRT2RTAggElement(struct ieee80211_device* ieee, u8* posRT2RTAgg, u8* len) 793{ 794 if (posRT2RTAgg == NULL) { 795 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n"); 796 return; 797 } 798 memset(posRT2RTAgg, 0, *len); 799 *posRT2RTAgg++ = 0x00; 800 *posRT2RTAgg++ = 0xe0; 801 *posRT2RTAgg++ = 0x4c; 802 *posRT2RTAgg++ = 0x02; 803 *posRT2RTAgg++ = 0x01; 804 *posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02; 805 806 if(ieee->bSupportRemoteWakeUp) { 807 *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW; 808 } 809 810 *len = 6 + 2; 811 return; 812#ifdef TODO 813#if(HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE) 814 /* 815 //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this 816 section of code. 817 if(IS_UNDER_11N_AES_MODE(Adapter)) 818 { 819 posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU; 820 }else 821 { 822 posRT2RTAgg->Octet[5] &= 0xfb; 823 } 824 */ 825 826#else 827 // Do Nothing 828#endif 829 830 posRT2RTAgg->Length = 6; 831#endif 832 833 834 835 836} 837 838 839/******************************************************************************************************************** 840 *function: Pick the right Rate Adaptive table to use 841 * input: struct ieee80211_device* ieee 842 * u8* pOperateMCS //A pointer to MCS rate bitmap 843 * return: always we return true 844 * notice: 845 * *****************************************************************************************************************/ 846u8 HT_PickMCSRate(struct ieee80211_device* ieee, u8* pOperateMCS) 847{ 848 u8 i; 849 if (pOperateMCS == NULL) 850 { 851 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n"); 852 return false; 853 } 854 855 switch(ieee->mode) 856 { 857 case IEEE_A: 858 case IEEE_B: 859 case IEEE_G: 860 //legacy rate routine handled at selectedrate 861 862 //no MCS rate 863 for(i=0;i<=15;i++){ 864 pOperateMCS[i] = 0; 865 } 866 break; 867 868 case IEEE_N_24G: //assume CCK rate ok 869 case IEEE_N_5G: 870 // Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G. 871 // Legacy part shall be handled at SelectRateSet(). 872 873 //HT part 874 // TODO: may be different if we have different number of antenna 875 pOperateMCS[0] &=RATE_ADPT_1SS_MASK; //support MCS 0~7 876 pOperateMCS[1] &=RATE_ADPT_2SS_MASK; 877 pOperateMCS[3] &=RATE_ADPT_MCS32_MASK; 878 break; 879 880 //should never reach here 881 default: 882 883 break; 884 885 } 886 887 return true; 888} 889 890/* 891* Description: 892* This function will get the highest speed rate in input MCS set. 893* 894* /param Adapter Pionter to Adapter entity 895* pMCSRateSet Pointer to MCS rate bitmap 896* pMCSFilter Pointer to MCS rate filter 897* 898* /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter. 899* 900*/ 901/******************************************************************************************************************** 902 *function: This function will get the highest speed rate in input MCS set. 903 * input: struct ieee80211_device* ieee 904 * u8* pMCSRateSet //Pointer to MCS rate bitmap 905 * u8* pMCSFilter //Pointer to MCS rate filter 906 * return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter 907 * notice: 908 * *****************************************************************************************************************/ 909u8 HTGetHighestMCSRate(struct ieee80211_device* ieee, u8* pMCSRateSet, u8* pMCSFilter) 910{ 911 u8 i, j; 912 u8 bitMap; 913 u8 mcsRate = 0; 914 u8 availableMcsRate[16]; 915 if (pMCSRateSet == NULL || pMCSFilter == NULL) 916 { 917 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n"); 918 return false; 919 } 920 for(i=0; i<16; i++) 921 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i]; 922 923 for(i = 0; i < 16; i++) 924 { 925 if(availableMcsRate[i] != 0) 926 break; 927 } 928 if(i == 16) 929 return false; 930 931 for(i = 0; i < 16; i++) 932 { 933 if(availableMcsRate[i] != 0) 934 { 935 bitMap = availableMcsRate[i]; 936 for(j = 0; j < 8; j++) 937 { 938 if((bitMap%2) != 0) 939 { 940 if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate)) 941 mcsRate = (8*i+j); 942 } 943 bitMap = bitMap>>1; 944 } 945 } 946 } 947 return (mcsRate|0x80); 948} 949 950 951 952/* 953** 954**1.Filter our operation rate set with AP's rate set 955**2.shall reference channel bandwidth, STBC, Antenna number 956**3.generate rate adative table for firmware 957**David 20060906 958** 959** \pHTSupportedCap: the connected STA's supported rate Capability element 960*/ 961u8 HTFilterMCSRate( struct ieee80211_device* ieee, u8* pSupportMCS, u8* pOperateMCS) 962{ 963 964 u8 i=0; 965 966 // filter out operational rate set not supported by AP, the lenth of it is 16 967 for(i=0;i<=15;i++){ 968 pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i]; 969 } 970 971 972 // TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number 973 974 // TODO: fill suggested rate adaptive rate index and give firmware info using Tx command packet 975 // we also shall suggested the first start rate set according to our singal strength 976 HT_PickMCSRate(ieee, pOperateMCS); 977 978 // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7. 979 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) 980 pOperateMCS[1] = 0; 981 982 // 983 // For RTL819X, we support only MCS0~15. 984 // And also, we do not know how to use MCS32 now. 985 // 986 for(i=2; i<=15; i++) 987 pOperateMCS[i] = 0; 988 989 return true; 990} 991void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset); 992void HTOnAssocRsp(struct ieee80211_device *ieee) 993{ 994 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 995 PHT_CAPABILITY_ELE pPeerHTCap = NULL; 996 PHT_INFORMATION_ELE pPeerHTInfo = NULL; 997 u16 nMaxAMSDUSize = 0; 998 u8* pMcsFilter = NULL; 999 1000 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily 1001 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily 1002 1003 if( pHTInfo->bCurrentHTSupport == false ) 1004 { 1005 IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n"); 1006 return; 1007 } 1008 IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n"); 1009// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE)); 1010// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE)); 1011 1012// HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq"); 1013// HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq"); 1014 // 1015 if(!memcmp(pHTInfo->PeerHTCapBuf,EWC11NHTCap, sizeof(EWC11NHTCap))) 1016 pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]); 1017 else 1018 pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf); 1019 1020 if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo))) 1021 pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]); 1022 else 1023 pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf); 1024 1025 1026 //////////////////////////////////////////////////////// 1027 // Configurations: 1028 //////////////////////////////////////////////////////// 1029 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE)); 1030// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE)); 1031 // Config Supported Channel Width setting 1032 // 1033 HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset)); 1034 1035// if(pHTInfo->bCurBW40MHz == true) 1036 pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false); 1037 1038 // 1039 // Update short GI/ long GI setting 1040 // 1041 // TODO: 1042 pHTInfo->bCurShortGI20MHz= 1043 ((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false); 1044 pHTInfo->bCurShortGI40MHz= 1045 ((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false); 1046 1047 // 1048 // Config TX STBC setting 1049 // 1050 // TODO: 1051 1052 // 1053 // Config DSSS/CCK mode in 40MHz mode 1054 // 1055 // TODO: 1056 pHTInfo->bCurSuppCCK = 1057 ((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false); 1058 1059 1060 // 1061 // Config and configure A-MSDU setting 1062 // 1063 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support; 1064 if (ieee->rtllib_ap_sec_type && 1065 (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))){ 1066 if( (pHTInfo->IOTPeer== HT_IOT_PEER_ATHEROS) || 1067 (pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN) ) 1068 pHTInfo->bCurrentAMPDUEnable = false; 1069 } 1070 1071 1072 nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935; 1073 1074 if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize ) 1075 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize; 1076 else 1077 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; 1078 1079 1080 // 1081 // Config A-MPDU setting 1082 // 1083 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable; 1084 1085 // <1> Decide AMPDU Factor 1086 1087 // By Emily 1088 if(!pHTInfo->bRegRT2RTAggregation) 1089 { 1090 // Decide AMPDU Factor according to protocol handshake 1091 if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor) 1092 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; 1093 else 1094 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; 1095 1096 }else 1097 { 1098 // Set MPDU density to 2 to Realtek AP, and set it to 0 for others 1099 // Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily 1100 if (ieee->current_network.bssht.bdRT2RTAggregation) 1101 { 1102 if( ieee->pairwise_key_type != KEY_TYPE_NA) 1103 // Realtek may set 32k in security mode and 64k for others 1104 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; 1105 else 1106 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K; 1107 }else 1108 { 1109 if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K) 1110 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; 1111 else 1112 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K; 1113 } 1114 } 1115 1116 // <2> Set AMPDU Minimum MPDU Start Spacing 1117 // 802.11n 3.0 section 9.7d.3 1118 if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity) 1119 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density; 1120 else 1121 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity; 1122 if(ieee->pairwise_key_type != KEY_TYPE_NA ) 1123 pHTInfo->CurrentMPDUDensity = 7; // 8us 1124 // Force TX AMSDU 1125 1126 // Lanhsin: mark for tmp to avoid deauth by ap from s3 1127 //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0) 1128 if(0) 1129 { 1130 1131 pHTInfo->bCurrentAMPDUEnable = false; 1132 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE; 1133 pHTInfo->ForcedAMSDUMaxSize = 7935; 1134 1135 pHTInfo->IOTAction |= HT_IOT_ACT_TX_USE_AMSDU_8K; 1136 } 1137 1138 // Rx Reorder Setting 1139 pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable; 1140 1141 // 1142 // Filter out unsupported HT rate for this AP 1143 // Update RATR table 1144 // This is only for 8190 ,8192 or later product which using firmware to handle rate adaptive mechanism. 1145 // 1146 1147 // Handle Ralink AP bad MCS rate set condition. Joseph. 1148 // This fix the bug of Ralink AP. This may be removed in the future. 1149 if(pPeerHTCap->MCS[0] == 0) 1150 pPeerHTCap->MCS[0] = 0xff; 1151 1152 HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet); 1153 1154 // 1155 // Config MIMO Power Save setting 1156 // 1157 pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave; 1158 if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC) 1159 pMcsFilter = MCS_FILTER_1SS; 1160 else 1161 pMcsFilter = MCS_FILTER_ALL; 1162 //WB add for MCS8 bug 1163// pMcsFilter = MCS_FILTER_1SS; 1164 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter); 1165 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate; 1166 1167 // 1168 // Config current operation mode. 1169 // 1170 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode; 1171 1172 1173 1174} 1175 1176void HTSetConnectBwModeCallback(struct ieee80211_device* ieee); 1177/******************************************************************************************************************** 1178 *function: initialize HT info(struct PRT_HIGH_THROUGHPUT) 1179 * input: struct ieee80211_device* ieee 1180 * output: none 1181 * return: none 1182 * notice: This function is called when * (1) MPInitialization Phase * (2) Receiving of Deauthentication from AP 1183********************************************************************************************************************/ 1184// TODO: Should this funciton be called when receiving of Disassociation? 1185void HTInitializeHTInfo(struct ieee80211_device* ieee) 1186{ 1187 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1188 1189 // 1190 // These parameters will be reset when receiving deauthentication packet 1191 // 1192 IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __FUNCTION__); 1193 pHTInfo->bCurrentHTSupport = false; 1194 1195 // 40MHz channel support 1196 pHTInfo->bCurBW40MHz = false; 1197 pHTInfo->bCurTxBW40MHz = false; 1198 1199 // Short GI support 1200 pHTInfo->bCurShortGI20MHz = false; 1201 pHTInfo->bCurShortGI40MHz = false; 1202 pHTInfo->bForcedShortGI = false; 1203 1204 // CCK rate support 1205 // This flag is set to true to support CCK rate by default. 1206 // It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities only when associate to 1207 // 11N BSS. 1208 pHTInfo->bCurSuppCCK = true; 1209 1210 // AMSDU related 1211 pHTInfo->bCurrent_AMSDU_Support = false; 1212 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; 1213 1214 // AMPUD related 1215 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density; 1216 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; 1217 1218 1219 1220 // Initialize all of the parameters related to 11n 1221 memset((void*)(&(pHTInfo->SelfHTCap)), 0, sizeof(pHTInfo->SelfHTCap)); 1222 memset((void*)(&(pHTInfo->SelfHTInfo)), 0, sizeof(pHTInfo->SelfHTInfo)); 1223 memset((void*)(&(pHTInfo->PeerHTCapBuf)), 0, sizeof(pHTInfo->PeerHTCapBuf)); 1224 memset((void*)(&(pHTInfo->PeerHTInfoBuf)), 0, sizeof(pHTInfo->PeerHTInfoBuf)); 1225 1226 pHTInfo->bSwBwInProgress = false; 1227 pHTInfo->ChnlOp = CHNLOP_NONE; 1228 1229 // Set default IEEE spec for Draft N 1230 pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE; 1231 1232 // Realtek proprietary aggregation mode 1233 pHTInfo->bCurrentRT2RTAggregation = false; 1234 pHTInfo->bCurrentRT2RTLongSlotTime = false; 1235 pHTInfo->IOTPeer = 0; 1236 pHTInfo->IOTAction = 0; 1237 1238 //MCS rate initialized here 1239 { 1240 u8* RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]); 1241 RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7 1242 RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15 1243 RegHTSuppRateSets[4] = 0x01; //support MCS 32 1244 } 1245} 1246/******************************************************************************************************************** 1247 *function: initialize Bss HT structure(struct PBSS_HT) 1248 * input: PBSS_HT pBssHT //to be initialized 1249 * output: none 1250 * return: none 1251 * notice: This function is called when initialize network structure 1252********************************************************************************************************************/ 1253void HTInitializeBssDesc(PBSS_HT pBssHT) 1254{ 1255 1256 pBssHT->bdSupportHT = false; 1257 memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf)); 1258 pBssHT->bdHTCapLen = 0; 1259 memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf)); 1260 pBssHT->bdHTInfoLen = 0; 1261 1262 pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE; 1263 1264 pBssHT->bdRT2RTAggregation = false; 1265 pBssHT->bdRT2RTLongSlotTime = false; 1266} 1267/******************************************************************************************************************** 1268 *function: initialize Bss HT structure(struct PBSS_HT) 1269 * input: struct ieee80211_device *ieee 1270 * struct ieee80211_network *pNetwork //usually current network we are live in 1271 * output: none 1272 * return: none 1273 * notice: This function should ONLY be called before association 1274********************************************************************************************************************/ 1275void HTResetSelfAndSavePeerSetting(struct ieee80211_device* ieee, struct ieee80211_network * pNetwork) 1276{ 1277 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1278// u16 nMaxAMSDUSize; 1279// PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf; 1280// PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf; 1281// u8* pMcsFilter; 1282 u8 bIOTAction = 0; 1283 1284 // 1285 // Save Peer Setting before Association 1286 // 1287 IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __FUNCTION__); 1288 /*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/ 1289// if( pHTInfo->bEnableHT && pNetwork->bssht.bdSupportHT) 1290 if (pNetwork->bssht.bdSupportHT) 1291 { 1292 pHTInfo->bCurrentHTSupport = true; 1293 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer; 1294 1295 // Save HTCap and HTInfo information Element 1296 if(pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf)) 1297 memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen); 1298 1299 if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf)) 1300 memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen); 1301 1302 // Check whether RT to RT aggregation mode is enabled 1303 if(pHTInfo->bRegRT2RTAggregation) 1304 { 1305 pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation; 1306 pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime; 1307 } 1308 else 1309 { 1310 pHTInfo->bCurrentRT2RTAggregation = false; 1311 pHTInfo->bCurrentRT2RTLongSlotTime = false; 1312 } 1313 1314 // Determine the IOT Peer Vendor. 1315 HTIOTPeerDetermine(ieee); 1316 1317 // Decide IOT Action 1318 // Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided 1319 pHTInfo->IOTAction = 0; 1320 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid); 1321 if(bIOTAction) 1322 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14; 1323 bIOTAction = HTIOTActIsForcedCTS2Self(ieee, pNetwork); 1324 if(bIOTAction) 1325 pHTInfo->IOTAction |= HT_IOT_ACT_FORCED_CTS2SELF; 1326 1327 bIOTAction = HTIOTActIsDisableMCS15(ieee); 1328 if(bIOTAction) 1329 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15; 1330 1331 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid); 1332 if(bIOTAction) 1333 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS; 1334 1335 1336 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid); 1337 if(bIOTAction) 1338 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO; 1339 1340 bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork); 1341 if(bIOTAction) 1342 pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M; 1343 1344 bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid); 1345 if(bIOTAction) 1346 pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC; 1347 1348 bIOTAction = HTIOTActIsNullDataPowerSaving(ieee, pNetwork); 1349 if(bIOTAction) 1350 pHTInfo->IOTAction |= HT_IOT_ACT_NULL_DATA_POWER_SAVING; 1351 1352 } 1353 else 1354 { 1355 pHTInfo->bCurrentHTSupport = false; 1356 pHTInfo->bCurrentRT2RTAggregation = false; 1357 pHTInfo->bCurrentRT2RTLongSlotTime = false; 1358 1359 pHTInfo->IOTAction = 0; 1360 } 1361 1362} 1363 1364void HTUpdateSelfAndPeerSetting(struct ieee80211_device* ieee, struct ieee80211_network * pNetwork) 1365{ 1366 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1367// PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf; 1368 PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf; 1369 1370 if(pHTInfo->bCurrentHTSupport) 1371 { 1372 // 1373 // Config current operation mode. 1374 // 1375 if(pNetwork->bssht.bdHTInfoLen != 0) 1376 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode; 1377 1378 // 1379 // <TODO: Config according to OBSS non-HT STA present!!> 1380 // 1381 } 1382} 1383 1384void HTUseDefaultSetting(struct ieee80211_device* ieee) 1385{ 1386 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1387// u8 regBwOpMode; 1388 1389 if(pHTInfo->bEnableHT) 1390 { 1391 pHTInfo->bCurrentHTSupport = true; 1392 1393 pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK; 1394 1395 pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz; 1396 1397 pHTInfo->bCurShortGI20MHz= pHTInfo->bRegShortGI20MHz; 1398 1399 pHTInfo->bCurShortGI40MHz= pHTInfo->bRegShortGI40MHz; 1400 1401 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support; 1402 1403 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; 1404 1405 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable; 1406 1407 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; 1408 1409 pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity; 1410 1411 // Set BWOpMode register 1412 1413 //update RATR index0 1414 HTFilterMCSRate(ieee, ieee->Regdot11HTOperationalRateSet, ieee->dot11HTOperationalRateSet); 1415 //function below is not implemented at all. WB 1416#ifdef TODO 1417 Adapter->HalFunc.InitHalRATRTableHandler( Adapter, &pMgntInfo->dot11OperationalRateSet, pMgntInfo->dot11HTOperationalRateSet); 1418#endif 1419 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, MCS_FILTER_ALL); 1420 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate; 1421 1422 } 1423 else 1424 { 1425 pHTInfo->bCurrentHTSupport = false; 1426 } 1427 return; 1428} 1429/******************************************************************************************************************** 1430 *function: check whether HT control field exists 1431 * input: struct ieee80211_device *ieee 1432 * u8* pFrame //coming skb->data 1433 * output: none 1434 * return: return true if HT control field exists(false otherwise) 1435 * notice: 1436********************************************************************************************************************/ 1437u8 HTCCheck(struct ieee80211_device* ieee, u8* pFrame) 1438{ 1439 if(ieee->pHTInfo->bCurrentHTSupport) 1440 { 1441 if( (IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) 1442 { 1443 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n"); 1444 return true; 1445 } 1446 } 1447 return false; 1448} 1449 1450// 1451// This function set bandwidth mode in protocol layer. 1452// 1453void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset) 1454{ 1455 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1456// u32 flags = 0; 1457 1458 if(pHTInfo->bRegBW40MHz == false) 1459 return; 1460 1461 1462 1463 // To reduce dummy operation 1464// if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) || 1465// (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset)) 1466// return; 1467 1468// spin_lock_irqsave(&(ieee->bw_spinlock), flags); 1469 if(pHTInfo->bSwBwInProgress) { 1470// spin_unlock_irqrestore(&(ieee->bw_spinlock), flags); 1471 return; 1472 } 1473 //if in half N mode, set to 20M bandwidth please 09.08.2008 WB. 1474 if(Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))) 1475 { 1476 // Handle Illegal extention channel offset!! 1477 if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER) 1478 Offset = HT_EXTCHNL_OFFSET_NO_EXT; 1479 if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) { 1480 pHTInfo->bCurBW40MHz = true; 1481 pHTInfo->CurSTAExtChnlOffset = Offset; 1482 } else { 1483 pHTInfo->bCurBW40MHz = false; 1484 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT; 1485 } 1486 } else { 1487 pHTInfo->bCurBW40MHz = false; 1488 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT; 1489 } 1490 1491 pHTInfo->bSwBwInProgress = true; 1492 1493 // TODO: 2007.7.13 by Emily Wait 2000ms in order to garantee that switching 1494 // bandwidth is executed after scan is finished. It is a temporal solution 1495 // because software should ganrantee the last operation of switching bandwidth 1496 // is executed properlly. 1497 HTSetConnectBwModeCallback(ieee); 1498 1499// spin_unlock_irqrestore(&(ieee->bw_spinlock), flags); 1500} 1501 1502void HTSetConnectBwModeCallback(struct ieee80211_device* ieee) 1503{ 1504 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1505 1506 IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __FUNCTION__); 1507 1508 if(pHTInfo->bCurBW40MHz) 1509 { 1510 if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_UPPER) 1511 ieee->set_chan(ieee->dev, ieee->current_network.channel+2); 1512 else if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_LOWER) 1513 ieee->set_chan(ieee->dev, ieee->current_network.channel-2); 1514 else 1515 ieee->set_chan(ieee->dev, ieee->current_network.channel); 1516 1517 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset); 1518 } else { 1519 ieee->set_chan(ieee->dev, ieee->current_network.channel); 1520 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT); 1521 } 1522 1523 pHTInfo->bSwBwInProgress = false; 1524} 1525