1 // SPDX-License-Identifier: GPL-2.0 2 3 /* 4 * As this function is mainly ported from Windows driver, so leave the name 5 * little changed. If any confusion caused, tell me. Created by WB. 2008.05.08 6 */ 7 #include "ieee80211.h" 8 9 u8 MCS_FILTER_ALL[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; 10 11 u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; 12 13 u16 MCS_DATA_RATE[2][2][77] = { 14 { {13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234, 260, 15 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416, 468, 520, 16 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182, 182, 208, 156, 195, 17 195, 234, 273, 273, 312, 130, 156, 181, 156, 181, 208, 234, 208, 234, 260, 260, 18 286, 195, 234, 273, 234, 273, 312, 351, 312, 351, 390, 390, 429}, // Long GI, 20MHz 19 {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289, 20 43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520, 578, 21 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231, 173, 217, 22 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260, 231, 260, 289, 289, 23 318, 217, 260, 303, 260, 303, 347, 390, 347, 390, 433, 433, 477} }, // Short GI, 20MHz 24 { {27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486, 540, 25 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648, 864, 972, 1080, 26 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324, 378, 378, 432, 324, 405, 27 405, 486, 567, 567, 648, 270, 324, 378, 324, 378, 432, 486, 432, 486, 540, 540, 28 594, 405, 486, 567, 486, 567, 648, 729, 648, 729, 810, 810, 891}, // Long GI, 40MHz 29 {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540, 600, 30 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720, 960, 1080, 1200, 31 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360, 420, 420, 480, 360, 450, 32 450, 540, 630, 630, 720, 300, 360, 420, 360, 420, 480, 540, 480, 540, 600, 600, 33 660, 450, 540, 630, 540, 630, 720, 810, 720, 810, 900, 900, 990} } // Short GI, 40MHz 34 }; 35 36 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf}; 37 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70}; 38 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e}; 39 static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f}; 40 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f}; //cosa 03202008 41 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf}; 42 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc}; 43 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e}; 44 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02}; 45 //static u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0}; 46 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94}; 47 /* 48 * 2008/04/01 MH For Cisco G mode RX TP We need to change FW duration. Should we 49 * put the code in other place?? 50 * static u8 WIFI_CISCO_G_AP[3] = {0x00, 0x40, 0x96}; 51 */ 52 /* 53 *function: This function update default settings in pHTInfo structure 54 * input: PRT_HIGH_THROUGHPUT pHTInfo 55 * output: none 56 * return: none 57 * notice: These value need be modified if any changes. 58 */ 59 void HTUpdateDefaultSetting(struct ieee80211_device *ieee) 60 { 61 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 62 //const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo; 63 64 //printk("pHTinfo:%p, &pHTinfo:%p, mptr:%p, offsetof:%x\n", pHTInfo, &pHTInfo, __mptr, offsetof(struct ieee80211_device, pHTInfo)); 65 //printk("===>ieee:%p,\n", ieee); 66 // ShortGI support 67 pHTInfo->bRegShortGI20MHz = 1; 68 pHTInfo->bRegShortGI40MHz = 1; 69 70 // 40MHz channel support 71 pHTInfo->bRegBW40MHz = 1; 72 73 // CCK rate support in 40MHz channel 74 if (pHTInfo->bRegBW40MHz) 75 pHTInfo->bRegSuppCCK = 1; 76 else 77 pHTInfo->bRegSuppCCK = true; 78 79 // AMSDU related 80 pHTInfo->nAMSDU_MaxSize = 7935UL; 81 pHTInfo->bAMSDU_Support = 0; 82 83 // AMPDU related 84 pHTInfo->bAMPDUEnable = 1; 85 pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k) 86 pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec 87 88 // MIMO Power Save 89 pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.) 90 if (pHTInfo->SelfMimoPs == 2) 91 pHTInfo->SelfMimoPs = 3; 92 // 8190 only. Assign rate operation mode to firmware 93 ieee->bTxDisableRateFallBack = 0; 94 ieee->bTxUseDriverAssingedRate = 0; 95 96 /* 97 * 8190 only, Realtek proprietary aggregation mode 98 * Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others 99 */ 100 pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others 101 102 // For Rx Reorder Control 103 pHTInfo->bRegRxReorderEnable = 1; 104 pHTInfo->RxReorderWinSize = 64; 105 pHTInfo->RxReorderPendingTime = 30; 106 107 #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE 108 pHTInfo->UsbTxAggrNum = 4; 109 #endif 110 #ifdef USB_RX_AGGREGATION_SUPPORT 111 pHTInfo->UsbRxFwAggrEn = 1; 112 pHTInfo->UsbRxFwAggrPageNum = 24; 113 pHTInfo->UsbRxFwAggrPacketNum = 8; 114 pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us 115 #endif 116 } 117 118 /* 119 *function: This function print out each field on HT capability 120 * IE mainly from (Beacon/ProbeRsp/AssocReq) 121 * input: u8* CapIE //Capability IE to be printed out 122 * u8* TitleString //mainly print out caller function 123 * output: none 124 * return: none 125 * notice: Driver should not print out this message by default. 126 */ 127 void HTDebugHTCapability(u8 *CapIE, u8 *TitleString) 128 { 129 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily 130 struct ht_capability_ele *pCapELE; 131 132 if (!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) { 133 //EWC IE 134 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__); 135 pCapELE = (struct ht_capability_ele *)(&CapIE[4]); 136 } else { 137 pCapELE = (struct ht_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 } 152 153 /* 154 *function: This function print out each field on HT Information 155 * 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 */ 162 void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString) 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 // Not EWC IE 169 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__); 170 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]); 171 } else { 172 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]); 173 } 174 175 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Information Element>. Called by %s\n", TitleString); 176 177 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl); 178 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSecondary channel ="); 179 switch (pHTInfoEle->ExtChlOffset) { 180 case 0: 181 IEEE80211_DEBUG(IEEE80211_DL_HT, "Not Present\n"); 182 break; 183 case 1: 184 IEEE80211_DEBUG(IEEE80211_DL_HT, "Upper channel\n"); 185 break; 186 case 2: 187 IEEE80211_DEBUG(IEEE80211_DL_HT, "Reserved. Eooro!!!\n"); 188 break; 189 case 3: 190 IEEE80211_DEBUG(IEEE80211_DL_HT, "Lower Channel\n"); 191 break; 192 } 193 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tRecommended channel width = %s\n", (pHTInfoEle->RecommemdedTxWidth) ? "20Mhz" : "40Mhz"); 194 195 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tOperation mode for protection = "); 196 switch (pHTInfoEle->OptMode) { 197 case 0: 198 IEEE80211_DEBUG(IEEE80211_DL_HT, "No Protection\n"); 199 break; 200 case 1: 201 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT non-member protection mode\n"); 202 break; 203 case 2: 204 IEEE80211_DEBUG(IEEE80211_DL_HT, "Suggest to open protection\n"); 205 break; 206 case 3: 207 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT mixed mode\n"); 208 break; 209 } 210 211 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x][%x]\n", pHTInfoEle->BasicMSC[0],\ 212 pHTInfoEle->BasicMSC[1], pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3], pHTInfoEle->BasicMSC[4]); 213 } 214 215 static u16 HTMcsToDataRate(struct ieee80211_device *ieee, u8 nMcsRate) 216 { 217 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 218 219 u8 is40MHz = (pHTInfo->bCurBW40MHz) ? 1 : 0; 220 u8 isShortGI = (pHTInfo->bCurBW40MHz) ? 221 ((pHTInfo->bCurShortGI40MHz) ? 1 : 0) : 222 ((pHTInfo->bCurShortGI20MHz) ? 1 : 0); 223 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)]; 224 } 225 226 /* 227 *function: This function returns current datarate. 228 * input: struct ieee80211_device* ieee 229 * u8 nDataRate 230 * output: none 231 * return: tx rate 232 * notice: quite unsure about how to use this function //wb 233 */ 234 u16 TxCountToDataRate(struct ieee80211_device *ieee, u8 nDataRate) 235 { 236 //PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 237 u16 CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c}; 238 u8 is40MHz = 0; 239 u8 isShortGI = 0; 240 241 if (nDataRate < 12) { 242 return CCKOFDMRate[nDataRate]; 243 } else { 244 if (nDataRate >= 0x10 && nDataRate <= 0x1f) { //if(nDataRate > 11 && nDataRate < 28 ) 245 is40MHz = 0; 246 isShortGI = 0; 247 248 // nDataRate = nDataRate - 12; 249 } else if (nDataRate >= 0x20 && nDataRate <= 0x2f) { //(27, 44) 250 is40MHz = 1; 251 isShortGI = 0; 252 253 //nDataRate = nDataRate - 28; 254 } else if (nDataRate >= 0x30 && nDataRate <= 0x3f) { //(43, 60) 255 is40MHz = 0; 256 isShortGI = 1; 257 258 //nDataRate = nDataRate - 44; 259 } else if (nDataRate >= 0x40 && nDataRate <= 0x4f) { //(59, 76) 260 is40MHz = 1; 261 isShortGI = 1; 262 263 //nDataRate = nDataRate - 60; 264 } 265 return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate & 0xf]; 266 } 267 } 268 269 bool IsHTHalfNmodeAPs(struct ieee80211_device *ieee) 270 { 271 bool retValue = false; 272 struct ieee80211_network *net = &ieee->current_network; 273 274 if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) || 275 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) || 276 (memcmp(net->bssid, PCI_RALINK, 3) == 0) || 277 (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) || 278 (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) || 279 (net->ralink_cap_exist)) 280 retValue = true; 281 else if ((memcmp(net->bssid, UNKNOWN_BORADCOM, 3) == 0) || 282 (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) == 0) || 283 (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) == 0) || 284 (memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3) == 0) || 285 (net->broadcom_cap_exist)) 286 retValue = true; 287 else if (net->bssht.bdRT2RTAggregation) 288 retValue = true; 289 else 290 retValue = false; 291 292 return retValue; 293 } 294 295 /* 296 *function: This function returns peer IOT. 297 * input: struct ieee80211_device* ieee 298 * output: none 299 * return: 300 * notice: 301 */ 302 static void HTIOTPeerDetermine(struct ieee80211_device *ieee) 303 { 304 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 305 struct ieee80211_network *net = &ieee->current_network; 306 307 if (net->bssht.bdRT2RTAggregation) 308 pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK; 309 else if (net->broadcom_cap_exist) 310 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM; 311 else if ((memcmp(net->bssid, UNKNOWN_BORADCOM, 3) == 0) || 312 (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) == 0) || 313 (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) == 0) || 314 (memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3) == 0)) 315 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM; 316 else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) || 317 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) || 318 (memcmp(net->bssid, PCI_RALINK, 3) == 0) || 319 (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) || 320 (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) || 321 net->ralink_cap_exist) 322 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK; 323 else if (net->atheros_cap_exist) 324 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS; 325 else if (memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) 326 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO; 327 else 328 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN; 329 330 IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer); 331 } 332 333 /* 334 *function: Check whether driver should declare received rate up to MCS13 335 * only since some chipset is not good at receiving MCS14~15 frame 336 * from some AP. 337 * input: struct ieee80211_device* ieee 338 * u8 * PeerMacAddr 339 * output: none 340 * return: return 1 if driver should declare MCS13 only(otherwise return 0) 341 */ 342 static u8 HTIOTActIsDisableMCS14(struct ieee80211_device *ieee, u8 *PeerMacAddr) 343 { 344 return 0; 345 } 346 347 /* 348 * Function: HTIOTActIsDisableMCS15 349 * 350 * Overview: Check whether driver should declare capability of receiving 351 * MCS15 352 * 353 * Input: 354 * PADAPTER Adapter, 355 * 356 * Output: None 357 * Return: true if driver should disable MCS15 358 * 2008.04.15 Emily 359 */ 360 static bool HTIOTActIsDisableMCS15(struct ieee80211_device *ieee) 361 { 362 bool retValue = false; 363 364 #ifdef TODO 365 // Apply for 819u only 366 #if (HAL_CODE_BASE == RTL8192) 367 368 #if (DEV_BUS_TYPE == USB_INTERFACE) 369 // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15 370 retValue = true; 371 #elif (DEV_BUS_TYPE == PCI_INTERFACE) 372 // Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12 373 // if(pBssDesc->bCiscoCapExist) 374 // retValue = false; 375 // else 376 retValue = false; 377 #endif 378 #endif 379 #endif 380 // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15 381 382 return retValue; 383 } 384 385 /* 386 * Function: HTIOTActIsDisableMCSTwoSpatialStream 387 * 388 * Overview: Check whether driver should declare capability of receiving 389 * All 2 ss packets 390 * 391 * Input: 392 * PADAPTER Adapter, 393 * 394 * Output: None 395 * Return: true if driver should disable all two spatial stream packet 396 * 2008.04.21 Emily 397 */ 398 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee, 399 u8 *PeerMacAddr) 400 { 401 #ifdef TODO 402 // Apply for 819u only 403 #endif 404 return false; 405 } 406 407 /* 408 *function: Check whether driver should disable EDCA turbo mode 409 * input: struct ieee80211_device* ieee 410 * u8* PeerMacAddr 411 * output: none 412 * return: return 1 if driver should disable EDCA turbo mode 413 * (otherwise return 0) 414 */ 415 static u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device *ieee, 416 u8 *PeerMacAddr) 417 { /* default enable EDCA Turbo mode. */ 418 return false; 419 } 420 421 /* 422 *function: Check whether we need to use OFDM to sned MGNT frame for 423 * broadcom AP 424 * input: struct ieee80211_network *network //current network we live 425 * output: none 426 * return: return 1 if true 427 */ 428 static u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network) 429 { 430 u8 retValue = 0; 431 432 // 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP. 433 // 2008/01/28 MH We must prevent that we select null bssid to link. 434 435 if (network->broadcom_cap_exist) 436 retValue = 1; 437 438 return retValue; 439 } 440 441 static u8 HTIOTActIsCCDFsync(u8 *PeerMacAddr) 442 { 443 u8 retValue = 0; 444 445 if ((memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3) == 0) || 446 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) == 0) || 447 (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) == 0)) 448 retValue = 1; 449 450 return retValue; 451 } 452 453 void HTResetIOTSetting(PRT_HIGH_THROUGHPUT pHTInfo) 454 { 455 pHTInfo->IOTAction = 0; 456 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN; 457 } 458 459 /* 460 *function: Construct Capablility Element in Beacon... if HTEnable is turned on 461 * input: struct ieee80211_device* ieee 462 * u8* posHTCap //pointer to store Capability Ele 463 * u8* len //store length of CE 464 * u8 IsEncrypt //whether encrypt, needed further 465 * output: none 466 * return: none 467 * notice: posHTCap can't be null and should be initialized before. 468 */ 469 void HTConstructCapabilityElement(struct ieee80211_device *ieee, u8 *posHTCap, u8 *len, u8 IsEncrypt) 470 { 471 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo; 472 struct ht_capability_ele *pCapELE = NULL; 473 //u8 bIsDeclareMCS13; 474 475 if (!posHTCap || !pHT) { 476 IEEE80211_DEBUG(IEEE80211_DL_ERR, 477 "posHTCap or pHTInfo can't be null in %s\n", 478 __func__); 479 return; 480 } 481 memset(posHTCap, 0, *len); 482 if (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) { 483 static const u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; 484 485 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap)); 486 pCapELE = (struct ht_capability_ele *)&posHTCap[4]; 487 } else { 488 pCapELE = (struct ht_capability_ele *)posHTCap; 489 } 490 491 //HT capability info 492 pCapELE->AdvCoding = 0; // This feature is not supported now!! 493 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) 494 pCapELE->ChlWidth = 0; 495 else 496 pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0); 497 498 // pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0); 499 pCapELE->MimoPwrSave = pHT->SelfMimoPs; 500 pCapELE->GreenField = 0; // This feature is not supported now!! 501 pCapELE->ShortGI20Mhz = 1; // We can receive Short GI!! 502 pCapELE->ShortGI40Mhz = 1; // We can receive Short GI!! 503 //DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r", 504 //pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz); 505 pCapELE->TxSTBC = 1; 506 pCapELE->RxSTBC = 0; 507 pCapELE->DelayBA = 0; // Do not support now!! 508 pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0; 509 pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0); 510 pCapELE->PSMP = 0; // Do not support now!! 511 pCapELE->LSigTxopProtect = 0; // Do not support now!! 512 513 /* 514 * MAC HT parameters info 515 * TODO: Nedd to take care of this part 516 */ 517 IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk); 518 519 if (IsEncrypt) { 520 pCapELE->MPDUDensity = 7; // 8us 521 pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K 522 } else { 523 pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K 524 pCapELE->MPDUDensity = 0; // no density 525 } 526 527 //Supported MCS set 528 memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16); 529 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15) 530 pCapELE->MCS[1] &= 0x7f; 531 532 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14) 533 pCapELE->MCS[1] &= 0xbf; 534 535 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS) 536 pCapELE->MCS[1] &= 0x00; 537 538 /* 539 * 2008.06.12 540 * For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7. 541 */ 542 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) { 543 int i; 544 545 for (i = 1; i < 16; i++) 546 pCapELE->MCS[i] = 0; 547 } 548 549 //Extended HT Capability Info 550 memset(&pCapELE->ExtHTCapInfo, 0, 2); 551 552 //TXBF Capabilities 553 memset(pCapELE->TxBFCap, 0, 4); 554 555 //Antenna Selection Capabilities 556 pCapELE->ASCap = 0; 557 //add 2 to give space for element ID and len when construct frames 558 if (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) 559 *len = 30 + 2; 560 else 561 *len = 26 + 2; 562 563 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2); 564 565 /* 566 * Print each field in detail. Driver should not print out this message 567 * by default 568 */ 569 // HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()"); 570 } 571 572 /* 573 *function: Construct Information Element in Beacon... if HTEnable is turned on 574 * input: struct ieee80211_device* ieee 575 * u8* posHTCap //pointer to store Information Ele 576 * u8* len //store len of 577 * u8 IsEncrypt //whether encrypt, needed further 578 * output: none 579 * return: none 580 * notice: posHTCap can't be null and be initialized before. 581 * Only AP and IBSS sta should do this 582 */ 583 void HTConstructInfoElement(struct ieee80211_device *ieee, u8 *posHTInfo, u8 *len, u8 IsEncrypt) 584 { 585 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo; 586 PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo; 587 588 if (!posHTInfo || !pHTInfoEle) { 589 IEEE80211_DEBUG(IEEE80211_DL_ERR, 590 "posHTInfo or pHTInfoEle can't be null in %s\n", 591 __func__); 592 return; 593 } 594 595 memset(posHTInfo, 0, *len); 596 if ((ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) { //ap mode is not currently supported 597 pHTInfoEle->ControlChl = ieee->current_network.channel; 598 pHTInfoEle->ExtChlOffset = ((!pHT->bRegBW40MHz) ? HT_EXTCHNL_OFFSET_NO_EXT : 599 (ieee->current_network.channel <= 6) ? 600 HT_EXTCHNL_OFFSET_UPPER : HT_EXTCHNL_OFFSET_LOWER); 601 pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz; 602 pHTInfoEle->RIFS = 0; 603 pHTInfoEle->PSMPAccessOnly = 0; 604 pHTInfoEle->SrvIntGranularity = 0; 605 pHTInfoEle->OptMode = pHT->CurrentOpMode; 606 pHTInfoEle->NonGFDevPresent = 0; 607 pHTInfoEle->DualBeacon = 0; 608 pHTInfoEle->SecondaryBeacon = 0; 609 pHTInfoEle->LSigTxopProtectFull = 0; 610 pHTInfoEle->PcoActive = 0; 611 pHTInfoEle->PcoPhase = 0; 612 613 memset(pHTInfoEle->BasicMSC, 0, 16); 614 615 *len = 22 + 2; //same above 616 } else { 617 //STA should not generate High Throughput Information Element 618 *len = 0; 619 } 620 //IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2); 621 //HTDebugHTInfo(posHTInfo, "HTConstructInforElement"); 622 } 623 624 /* 625 * According to experiment, Realtek AP to STA (based on rtl8190) may achieve 626 * best performance if both STA and AP set limitation of aggregation size to 627 * 32K, that is, set AMPDU density to 2 (Ref: IEEE 11n specification). 628 * However, if Realtek STA associates to other AP, STA should set limitation of 629 * aggregation size to 8K, otherwise, performance of traffic stream from STA to 630 * AP will be much less than the traffic stream from AP to STA if both of the 631 * stream runs concurrently at the same time. 632 * 633 * Frame Format 634 * Element ID Length OUI Type1 Reserved 635 * 1 byte 1 byte 3 bytes 1 byte 1 byte 636 * 637 * OUI = 0x00, 0xe0, 0x4c, 638 * Type = 0x02 639 * Reserved = 0x00 640 * 641 * 2007.8.21 by Emily 642 */ 643 /* 644 *function: Construct Information Element in Beacon... in RT2RT condition 645 * input: struct ieee80211_device* ieee 646 * u8* posRT2RTAgg //pointer to store Information Ele 647 * u8* len //store len 648 * output: none 649 * return: none 650 * notice: 651 */ 652 void HTConstructRT2RTAggElement(struct ieee80211_device *ieee, u8 *posRT2RTAgg, u8 *len) 653 { 654 if (!posRT2RTAgg) { 655 IEEE80211_DEBUG(IEEE80211_DL_ERR, 656 "posRT2RTAgg can't be null in %s\n", 657 __func__); 658 return; 659 } 660 memset(posRT2RTAgg, 0, *len); 661 *posRT2RTAgg++ = 0x00; 662 *posRT2RTAgg++ = 0xe0; 663 *posRT2RTAgg++ = 0x4c; 664 *posRT2RTAgg++ = 0x02; 665 *posRT2RTAgg++ = 0x01; 666 *posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02; 667 668 if (ieee->bSupportRemoteWakeUp) 669 *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW; 670 671 *len = 6 + 2; 672 return; 673 #ifdef TODO 674 #if (HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE) 675 /* 676 //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this 677 section of code. 678 if(IS_UNDER_11N_AES_MODE(Adapter)) 679 { 680 posRT2RTAgg->octet[5] |= RT_HT_CAP_USE_AMPDU; 681 }else 682 { 683 posRT2RTAgg->octet[5] &= 0xfb; 684 } 685 */ 686 #else 687 // Do Nothing 688 #endif 689 690 posRT2RTAgg->Length = 6; 691 #endif 692 } 693 694 /* 695 *function: Pick the right Rate Adaptive table to use 696 * input: struct ieee80211_device* ieee 697 * u8* pOperateMCS //A pointer to MCS rate bitmap 698 * return: always we return true 699 * notice: 700 */ 701 static u8 HT_PickMCSRate(struct ieee80211_device *ieee, u8 *pOperateMCS) 702 { 703 if (!pOperateMCS) { 704 IEEE80211_DEBUG(IEEE80211_DL_ERR, 705 "pOperateMCS can't be null in %s\n", 706 __func__); 707 return false; 708 } 709 710 switch (ieee->mode) { 711 case IEEE_A: 712 case IEEE_B: 713 case IEEE_G: 714 //legacy rate routine handled at selectedrate 715 716 //no MCS rate 717 memset(pOperateMCS, 0, 16); 718 break; 719 720 case IEEE_N_24G: //assume CCK rate ok 721 case IEEE_N_5G: 722 // Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G. 723 // Legacy part shall be handled at SelectRateSet(). 724 725 //HT part 726 // TODO: may be different if we have different number of antenna 727 pOperateMCS[0] &= RATE_ADPT_1SS_MASK; //support MCS 0~7 728 pOperateMCS[1] &= RATE_ADPT_2SS_MASK; 729 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK; 730 break; 731 732 //should never reach here 733 default: 734 break; 735 } 736 737 return true; 738 } 739 740 /* 741 * Description: 742 * This function will get the highest speed rate in input MCS set. 743 * 744 * /param Adapter Pionter to Adapter entity 745 * pMCSRateSet Pointer to MCS rate bitmap 746 * pMCSFilter Pointer to MCS rate filter 747 * 748 * /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter. 749 * 750 */ 751 /* 752 *function: This function will get the highest speed rate in input MCS set. 753 * input: struct ieee80211_device* ieee 754 * u8* pMCSRateSet //Pointer to MCS rate bitmap 755 * u8* pMCSFilter //Pointer to MCS rate filter 756 * return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter 757 * notice: 758 */ 759 u8 HTGetHighestMCSRate(struct ieee80211_device *ieee, u8 *pMCSRateSet, u8 *pMCSFilter) 760 { 761 u8 i, j; 762 u8 bitMap; 763 u8 mcsRate = 0; 764 u8 availableMcsRate[16]; 765 766 if (!pMCSRateSet || !pMCSFilter) { 767 IEEE80211_DEBUG(IEEE80211_DL_ERR, 768 "pMCSRateSet or pMCSFilter can't be null in %s\n", 769 __func__); 770 return false; 771 } 772 for (i = 0; i < 16; i++) 773 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i]; 774 775 for (i = 0; i < 16; i++) { 776 if (availableMcsRate[i] != 0) 777 break; 778 } 779 if (i == 16) 780 return false; 781 782 for (i = 0; i < 16; i++) { 783 if (availableMcsRate[i] != 0) { 784 bitMap = availableMcsRate[i]; 785 for (j = 0; j < 8; j++) { 786 if ((bitMap % 2) != 0) { 787 if (HTMcsToDataRate(ieee, (8 * i + j)) > HTMcsToDataRate(ieee, mcsRate)) 788 mcsRate = (8 * i + j); 789 } 790 bitMap >>= 1; 791 } 792 } 793 } 794 return (mcsRate | 0x80); 795 } 796 797 /* 798 * 1.Filter our operation rate set with AP's rate set 799 * 2.shall reference channel bandwidth, STBC, Antenna number 800 * 3.generate rate adative table for firmware 801 * David 20060906 802 * 803 * \pHTSupportedCap: the connected STA's supported rate Capability element 804 */ 805 static u8 HTFilterMCSRate(struct ieee80211_device *ieee, u8 *pSupportMCS, 806 u8 *pOperateMCS) 807 { 808 u8 i = 0; 809 810 // filter out operational rate set not supported by AP, the length of it is 16 811 for (i = 0; i <= 15; i++) 812 pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i] & pSupportMCS[i]; 813 814 // TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number 815 /* 816 * TODO: fill suggested rate adaptive rate index and give firmware info 817 * using Tx command packet we also shall suggested the first start rate 818 * set according to our signal strength 819 */ 820 HT_PickMCSRate(ieee, pOperateMCS); 821 822 // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7. 823 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) 824 pOperateMCS[1] = 0; 825 826 /* 827 * For RTL819X, we support only MCS0~15. 828 * And also, we do not know how to use MCS32 now. 829 */ 830 for (i = 2; i <= 15; i++) 831 pOperateMCS[i] = 0; 832 833 return true; 834 } 835 836 void HTOnAssocRsp(struct ieee80211_device *ieee) 837 { 838 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 839 struct ht_capability_ele *pPeerHTCap = NULL; 840 PHT_INFORMATION_ELE pPeerHTInfo = NULL; 841 u16 nMaxAMSDUSize = 0; 842 u8 *pMcsFilter = NULL; 843 844 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily 845 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily 846 847 if (!pHTInfo->bCurrentHTSupport) { 848 IEEE80211_DEBUG(IEEE80211_DL_ERR, 849 "<=== %s: HT_DISABLE\n", 850 __func__); 851 return; 852 } 853 IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n"); 854 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(struct ht_capability_ele)); 855 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE)); 856 857 // HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq"); 858 // HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq"); 859 // 860 if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap))) 861 pPeerHTCap = (struct ht_capability_ele *)(&pHTInfo->PeerHTCapBuf[4]); 862 else 863 pPeerHTCap = (struct ht_capability_ele *)(pHTInfo->PeerHTCapBuf); 864 865 if (!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo))) 866 pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]); 867 else 868 pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf); 869 870 //////////////////////////////////////////////////////// 871 // Configurations: 872 //////////////////////////////////////////////////////// 873 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, pPeerHTCap, sizeof(struct ht_capability_ele)); 874 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE)); 875 // Config Supported Channel Width setting 876 // 877 HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth), (enum ht_extension_chan_offset)(pPeerHTInfo->ExtChlOffset)); 878 879 pHTInfo->bCurTxBW40MHz = (pPeerHTInfo->RecommemdedTxWidth == 1); 880 881 /* 882 * Update short GI/ long GI setting 883 * 884 * TODO: 885 */ 886 pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz && 887 (pPeerHTCap->ShortGI20Mhz == 1); 888 pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz && 889 (pPeerHTCap->ShortGI40Mhz == 1); 890 891 /* 892 * Config TX STBC setting 893 * 894 * TODO: 895 */ 896 897 /* 898 * Config DSSS/CCK mode in 40MHz mode 899 * 900 * TODO: 901 */ 902 pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK && 903 (pPeerHTCap->DssCCk == 1); 904 905 /* 906 * Config and configure A-MSDU setting 907 */ 908 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support; 909 910 nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935; 911 912 if (pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize) 913 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize; 914 else 915 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; 916 /* 917 * Config A-MPDU setting 918 */ 919 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable; 920 921 /* 922 * <1> Decide AMPDU Factor 923 * By Emily 924 */ 925 if (!pHTInfo->bRegRT2RTAggregation) { 926 // Decide AMPDU Factor according to protocol handshake 927 if (pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor) 928 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; 929 else 930 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; 931 } else { 932 /* 933 * Set MPDU density to 2 to Realtek AP, and set it to 0 for others 934 * Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily 935 */ 936 if (ieee->current_network.bssht.bdRT2RTAggregation) { 937 if (ieee->pairwise_key_type != KEY_TYPE_NA) 938 // Realtek may set 32k in security mode and 64k for others 939 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; 940 else 941 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K; 942 } else { 943 pHTInfo->CurrentAMPDUFactor = min_t(u32, pPeerHTCap->MaxRxAMPDUFactor, 944 HT_AGG_SIZE_32K); 945 } 946 } 947 948 /* 949 * <2> Set AMPDU Minimum MPDU Start Spacing 950 * 802.11n 3.0 section 9.7d.3 951 */ 952 pHTInfo->CurrentMPDUDensity = max_t(u32, pHTInfo->MPDU_Density, 953 pPeerHTCap->MPDUDensity); 954 955 if (ieee->pairwise_key_type != KEY_TYPE_NA) 956 pHTInfo->CurrentMPDUDensity = 7; // 8us 957 // Force TX AMSDU 958 959 // Lanhsin: mark for tmp to avoid deauth by ap from s3 960 //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0) 961 if (0) { 962 pHTInfo->bCurrentAMPDUEnable = false; 963 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE; 964 pHTInfo->ForcedAMSDUMaxSize = 7935; 965 966 pHTInfo->IOTAction |= HT_IOT_ACT_TX_USE_AMSDU_8K; 967 } 968 969 // Rx Reorder Setting 970 pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable; 971 972 /* 973 * Filter out unsupported HT rate for this AP 974 * Update RATR table 975 * This is only for 8190 ,8192 or later product which using firmware to 976 * handle rate adaptive mechanism. 977 */ 978 979 /* 980 * Handle Ralink AP bad MCS rate set condition. Joseph. 981 * This fix the bug of Ralink AP. This may be removed in the future. 982 */ 983 if (pPeerHTCap->MCS[0] == 0) 984 pPeerHTCap->MCS[0] = 0xff; 985 986 HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet); 987 988 /* 989 * Config MIMO Power Save setting 990 */ 991 pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave; 992 if (pHTInfo->PeerMimoPs == MIMO_PS_STATIC) 993 pMcsFilter = MCS_FILTER_1SS; 994 else 995 pMcsFilter = MCS_FILTER_ALL; 996 //WB add for MCS8 bug 997 // pMcsFilter = MCS_FILTER_1SS; 998 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter); 999 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate; 1000 1001 /* 1002 * Config current operation mode. 1003 */ 1004 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode; 1005 } 1006 1007 /* 1008 *function: initialize HT info(struct PRT_HIGH_THROUGHPUT) 1009 * input: struct ieee80211_device* ieee 1010 * output: none 1011 * return: none 1012 * notice: This function is called when 1013 * * (1) MPInitialization Phase 1014 * * (2) Receiving of Deauthentication from AP 1015 */ 1016 // TODO: Should this funciton be called when receiving of Disassociation? 1017 void HTInitializeHTInfo(struct ieee80211_device *ieee) 1018 { 1019 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1020 1021 /* 1022 * These parameters will be reset when receiving deauthentication packet 1023 */ 1024 IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __func__); 1025 pHTInfo->bCurrentHTSupport = false; 1026 1027 // 40MHz channel support 1028 pHTInfo->bCurBW40MHz = false; 1029 pHTInfo->bCurTxBW40MHz = false; 1030 1031 // Short GI support 1032 pHTInfo->bCurShortGI20MHz = false; 1033 pHTInfo->bCurShortGI40MHz = false; 1034 pHTInfo->bForcedShortGI = false; 1035 1036 /* 1037 * CCK rate support 1038 * This flag is set to true to support CCK rate by default. 1039 * It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities 1040 * only when associate to 11N BSS. 1041 */ 1042 pHTInfo->bCurSuppCCK = true; 1043 1044 // AMSDU related 1045 pHTInfo->bCurrent_AMSDU_Support = false; 1046 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; 1047 1048 // AMPUD related 1049 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density; 1050 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; 1051 1052 // Initialize all of the parameters related to 11n 1053 memset(&pHTInfo->SelfHTCap, 0, sizeof(pHTInfo->SelfHTCap)); 1054 memset(&pHTInfo->SelfHTInfo, 0, sizeof(pHTInfo->SelfHTInfo)); 1055 memset(&pHTInfo->PeerHTCapBuf, 0, sizeof(pHTInfo->PeerHTCapBuf)); 1056 memset(&pHTInfo->PeerHTInfoBuf, 0, sizeof(pHTInfo->PeerHTInfoBuf)); 1057 1058 pHTInfo->bSwBwInProgress = false; 1059 1060 // Set default IEEE spec for Draft N 1061 pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE; 1062 1063 // Realtek proprietary aggregation mode 1064 pHTInfo->bCurrentRT2RTAggregation = false; 1065 pHTInfo->bCurrentRT2RTLongSlotTime = false; 1066 pHTInfo->IOTPeer = 0; 1067 pHTInfo->IOTAction = 0; 1068 1069 //MCS rate initialized here 1070 { 1071 u8 *RegHTSuppRateSets = &ieee->RegHTSuppRateSet[0]; 1072 1073 RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7 1074 RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15 1075 RegHTSuppRateSets[4] = 0x01; //support MCS 32 1076 } 1077 } 1078 1079 /* 1080 *function: initialize Bss HT structure(struct PBSS_HT) 1081 * input: PBSS_HT pBssHT //to be initialized 1082 * output: none 1083 * return: none 1084 * notice: This function is called when initialize network structure 1085 */ 1086 void HTInitializeBssDesc(PBSS_HT pBssHT) 1087 { 1088 pBssHT->bdSupportHT = false; 1089 memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf)); 1090 pBssHT->bdHTCapLen = 0; 1091 memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf)); 1092 pBssHT->bdHTInfoLen = 0; 1093 1094 pBssHT->bdHTSpecVer = HT_SPEC_VER_IEEE; 1095 1096 pBssHT->bdRT2RTAggregation = false; 1097 pBssHT->bdRT2RTLongSlotTime = false; 1098 } 1099 1100 /* 1101 *function: initialize Bss HT structure(struct PBSS_HT) 1102 * input: struct ieee80211_device *ieee 1103 * struct ieee80211_network *pNetwork //usually current network 1104 * we are live in 1105 * output: none 1106 * return: none 1107 * notice: This function should ONLY be called before association 1108 */ 1109 void HTResetSelfAndSavePeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork) 1110 { 1111 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1112 // u16 nMaxAMSDUSize; 1113 // struct ht_capability_ele *pPeerHTCap = (struct ht_capability_ele *)pNetwork->bssht.bdHTCapBuf; 1114 // PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf; 1115 // u8* pMcsFilter; 1116 u8 bIOTAction = 0; 1117 1118 // 1119 // Save Peer Setting before Association 1120 // 1121 IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __func__); 1122 /*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/ 1123 // if( pHTInfo->bEnableHT && pNetwork->bssht.bdSupportHT) 1124 if (pNetwork->bssht.bdSupportHT) { 1125 pHTInfo->bCurrentHTSupport = true; 1126 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer; 1127 1128 // Save HTCap and HTInfo information Element 1129 if (pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf)) 1130 memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen); 1131 1132 if (pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf)) 1133 memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen); 1134 1135 // Check whether RT to RT aggregation mode is enabled 1136 if (pHTInfo->bRegRT2RTAggregation) { 1137 pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation; 1138 pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime; 1139 } else { 1140 pHTInfo->bCurrentRT2RTAggregation = false; 1141 pHTInfo->bCurrentRT2RTLongSlotTime = false; 1142 } 1143 1144 // Determine the IOT Peer Vendor. 1145 HTIOTPeerDetermine(ieee); 1146 1147 /* 1148 * Decide IOT Action 1149 * Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided 1150 */ 1151 pHTInfo->IOTAction = 0; 1152 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid); 1153 if (bIOTAction) 1154 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14; 1155 1156 bIOTAction = HTIOTActIsDisableMCS15(ieee); 1157 if (bIOTAction) 1158 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15; 1159 1160 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid); 1161 if (bIOTAction) 1162 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS; 1163 1164 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid); 1165 if (bIOTAction) 1166 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO; 1167 1168 bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork); 1169 if (bIOTAction) 1170 pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M; 1171 1172 bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid); 1173 if (bIOTAction) 1174 pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC; 1175 } else { 1176 pHTInfo->bCurrentHTSupport = false; 1177 pHTInfo->bCurrentRT2RTAggregation = false; 1178 pHTInfo->bCurrentRT2RTLongSlotTime = false; 1179 1180 pHTInfo->IOTAction = 0; 1181 } 1182 } 1183 1184 void HTUpdateSelfAndPeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork) 1185 { 1186 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1187 // struct ht_capability_ele *pPeerHTCap = (struct ht_capability_ele *)pNetwork->bssht.bdHTCapBuf; 1188 PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf; 1189 1190 if (pHTInfo->bCurrentHTSupport) { 1191 /* 1192 * Config current operation mode. 1193 */ 1194 if (pNetwork->bssht.bdHTInfoLen != 0) 1195 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode; 1196 1197 /* 1198 * <TODO: Config according to OBSS non-HT STA present!!> 1199 */ 1200 } 1201 } 1202 EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting); 1203 1204 /* 1205 *function: check whether HT control field exists 1206 * input: struct ieee80211_device *ieee 1207 * u8* pFrame //coming skb->data 1208 * output: none 1209 * return: return true if HT control field exists(false otherwise) 1210 * notice: 1211 */ 1212 u8 HTCCheck(struct ieee80211_device *ieee, u8 *pFrame) 1213 { 1214 if (ieee->pHTInfo->bCurrentHTSupport) { 1215 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) { 1216 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n"); 1217 return true; 1218 } 1219 } 1220 return false; 1221 } 1222 1223 static void HTSetConnectBwModeCallback(struct ieee80211_device *ieee) 1224 { 1225 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1226 1227 IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __func__); 1228 1229 if (pHTInfo->bCurBW40MHz) { 1230 if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER) 1231 ieee->set_chan(ieee->dev, ieee->current_network.channel + 2); 1232 else if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_LOWER) 1233 ieee->set_chan(ieee->dev, ieee->current_network.channel - 2); 1234 else 1235 ieee->set_chan(ieee->dev, ieee->current_network.channel); 1236 1237 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset); 1238 } else { 1239 ieee->set_chan(ieee->dev, ieee->current_network.channel); 1240 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT); 1241 } 1242 1243 pHTInfo->bSwBwInProgress = false; 1244 } 1245 1246 /* 1247 * This function set bandwidth mode in protocol layer. 1248 */ 1249 void HTSetConnectBwMode(struct ieee80211_device *ieee, enum ht_channel_width Bandwidth, enum ht_extension_chan_offset Offset) 1250 { 1251 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; 1252 // u32 flags = 0; 1253 1254 if (!pHTInfo->bRegBW40MHz) 1255 return; 1256 1257 // To reduce dummy operation 1258 // if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) || 1259 // (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset)) 1260 // return; 1261 1262 // spin_lock_irqsave(&(ieee->bw_spinlock), flags); 1263 if (pHTInfo->bSwBwInProgress) { 1264 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags); 1265 return; 1266 } 1267 //if in half N mode, set to 20M bandwidth please 09.08.2008 WB. 1268 if (Bandwidth == HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))) { 1269 // Handle Illegal extension channel offset!! 1270 if (ieee->current_network.channel < 2 && Offset == HT_EXTCHNL_OFFSET_LOWER) 1271 Offset = HT_EXTCHNL_OFFSET_NO_EXT; 1272 if (Offset == HT_EXTCHNL_OFFSET_UPPER || Offset == HT_EXTCHNL_OFFSET_LOWER) { 1273 pHTInfo->bCurBW40MHz = true; 1274 pHTInfo->CurSTAExtChnlOffset = Offset; 1275 } else { 1276 pHTInfo->bCurBW40MHz = false; 1277 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT; 1278 } 1279 } else { 1280 pHTInfo->bCurBW40MHz = false; 1281 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT; 1282 } 1283 1284 pHTInfo->bSwBwInProgress = true; 1285 1286 /* 1287 * TODO: 2007.7.13 by Emily Wait 2000ms in order to guarantee that 1288 * switching bandwidth is executed after scan is finished. It is a 1289 * temporal solution because software should ganrantee the last 1290 * operation of switching bandwidth is executed properlly. 1291 */ 1292 HTSetConnectBwModeCallback(ieee); 1293 1294 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags); 1295 } 1296