//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 #include "ieee80211.h" #include "rtl819x_HT.h" u8 MCS_FILTER_ALL[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; u16 MCS_DATA_RATE[2][2][77] = { { {13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78 ,104, 156, 208, 234, 260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416, 468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182, 182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156, 181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273, 312, 351, 312, 351, 390, 390, 429}, // Long GI, 20MHz {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289, 43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520, 578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231, 173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260, 231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390, 433, 433, 477} }, // Short GI, 20MHz { {27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486, 540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648, 864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324, 378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324, 378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648, 729, 648, 729, 810, 810, 891}, // Long GI, 40MHz {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540, 600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720, 960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360, 420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360, 420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720, 810, 720, 810, 900, 900, 990} } // Short GI, 40MHz }; static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf}; static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70}; static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e}; static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f}; static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f}; //cosa 03202008 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf}; static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc}; static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e}; static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02}; //static u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0}; static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94}; // 2008/04/01 MH For Cisco G mode RX TP We need to change FW duration. Should we put the // code in other place?? //static u8 WIFI_CISCO_G_AP[3] = {0x00, 0x40, 0x96}; /******************************************************************************************************************** *function: This function update default settings in pHTInfo structure * input: PRT_HIGH_THROUGHPUT pHTInfo * output: none * return: none * notice: These value need be modified if any changes. * *****************************************************************************************************************/ void HTUpdateDefaultSetting(struct ieee80211_device* ieee) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; //const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo; //printk("pHTinfo:%p, &pHTinfo:%p, mptr:%p, offsetof:%x\n", pHTInfo, &pHTInfo, __mptr, offsetof(struct ieee80211_device, pHTInfo)); //printk("===>ieee:%p,\n", ieee); // ShortGI support pHTInfo->bRegShortGI20MHz= 1; pHTInfo->bRegShortGI40MHz= 1; // 40MHz channel support pHTInfo->bRegBW40MHz = 1; // CCK rate support in 40MHz channel if(pHTInfo->bRegBW40MHz) pHTInfo->bRegSuppCCK = 1; else pHTInfo->bRegSuppCCK = true; // AMSDU related pHTInfo->nAMSDU_MaxSize = 7935UL; pHTInfo->bAMSDU_Support = 0; // AMPDU related pHTInfo->bAMPDUEnable = 1; pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k) pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec // MIMO Power Save pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.) if(pHTInfo->SelfMimoPs == 2) pHTInfo->SelfMimoPs = 3; // 8190 only. Assign rate operation mode to firmware ieee->bTxDisableRateFallBack = 0; ieee->bTxUseDriverAssingedRate = 0; #ifdef TO_DO_LIST // 8190 only. Assign duration operation mode to firmware pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur; #endif // 8190 only, Realtek proprietary aggregation mode // Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others // For Rx Reorder Control pHTInfo->bRegRxReorderEnable = 1; pHTInfo->RxReorderWinSize = 64; pHTInfo->RxReorderPendingTime = 30; #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE pHTInfo->UsbTxAggrNum = 4; #endif #ifdef USB_RX_AGGREGATION_SUPPORT pHTInfo->UsbRxFwAggrEn = 1; pHTInfo->UsbRxFwAggrPageNum = 24; pHTInfo->UsbRxFwAggrPacketNum = 8; pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us #endif } /******************************************************************************************************************** *function: This function print out each field on HT capability IE mainly from (Beacon/ProbeRsp/AssocReq) * input: u8* CapIE //Capability IE to be printed out * u8* TitleString //mainly print out caller function * output: none * return: none * notice: Driver should not print out this message by default. * *****************************************************************************************************************/ void HTDebugHTCapability(u8* CapIE, u8* TitleString ) { static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily PHT_CAPABILITY_ELE pCapELE; if(!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) { //EWC IE IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__); pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[4]); }else pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[0]); IEEE80211_DEBUG(IEEE80211_DL_HT, ". Called by %s\n", TitleString ); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupported Channel Width = %s\n", (pCapELE->ChlWidth)?"20MHz": "20/40MHz"); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 20M = %s\n", (pCapELE->ShortGI20Mhz)?"YES": "NO"); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 40M = %s\n", (pCapELE->ShortGI40Mhz)?"YES": "NO"); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport TX STBC = %s\n", (pCapELE->TxSTBC)?"YES": "NO"); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMSDU Size = %s\n", (pCapELE->MaxAMSDUSize)?"3839": "7935"); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport CCK in 20/40 mode = %s\n", (pCapELE->DssCCk)?"YES": "NO"); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMPDU Factor = %d\n", pCapELE->MaxRxAMPDUFactor); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMPDU Density = %d\n", pCapELE->MPDUDensity); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n", pCapELE->MCS[0],\ pCapELE->MCS[1], pCapELE->MCS[2], pCapELE->MCS[3], pCapELE->MCS[4]); return; } /******************************************************************************************************************** *function: This function print out each field on HT Information IE mainly from (Beacon/ProbeRsp) * input: u8* InfoIE //Capability IE to be printed out * u8* TitleString //mainly print out caller function * output: none * return: none * notice: Driver should not print out this message by default. * *****************************************************************************************************************/ void HTDebugHTInfo(u8* InfoIE, u8* TitleString) { static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily PHT_INFORMATION_ELE pHTInfoEle; if(!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo))) { // Not EWC IE IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__); pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]); }else pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]); IEEE80211_DEBUG(IEEE80211_DL_HT, ". Called by %s\n", TitleString); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSenondary channel ="); switch(pHTInfoEle->ExtChlOffset) { case 0: IEEE80211_DEBUG(IEEE80211_DL_HT, "Not Present\n"); break; case 1: IEEE80211_DEBUG(IEEE80211_DL_HT, "Upper channel\n"); break; case 2: IEEE80211_DEBUG(IEEE80211_DL_HT, "Reserved. Eooro!!!\n"); break; case 3: IEEE80211_DEBUG(IEEE80211_DL_HT, "Lower Channel\n"); break; } IEEE80211_DEBUG(IEEE80211_DL_HT, "\tRecommended channel width = %s\n", (pHTInfoEle->RecommemdedTxWidth)?"20Mhz": "40Mhz"); IEEE80211_DEBUG(IEEE80211_DL_HT, "\tOperation mode for protection = "); switch(pHTInfoEle->OptMode) { case 0: IEEE80211_DEBUG(IEEE80211_DL_HT, "No Protection\n"); break; case 1: IEEE80211_DEBUG(IEEE80211_DL_HT, "HT non-member protection mode\n"); break; case 2: IEEE80211_DEBUG(IEEE80211_DL_HT, "Suggest to open protection\n"); break; case 3: IEEE80211_DEBUG(IEEE80211_DL_HT, "HT mixed mode\n"); break; } IEEE80211_DEBUG(IEEE80211_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x][%x]\n", pHTInfoEle->BasicMSC[0],\ pHTInfoEle->BasicMSC[1], pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3], pHTInfoEle->BasicMSC[4]); return; } /* * Return: true if station in half n mode and AP supports 40 bw */ bool IsHTHalfNmode40Bandwidth(struct ieee80211_device* ieee) { bool retValue = false; PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode retValue = false; else if(pHTInfo->bRegBW40MHz == false) // station supports 40 bw retValue = false; else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode retValue = false; else if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ChlWidth) // ap support 40 bw retValue = true; else retValue = false; return retValue; } bool IsHTHalfNmodeSGI(struct ieee80211_device* ieee, bool is40MHz) { bool retValue = false; PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode retValue = false; else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode retValue = false; else if(is40MHz) // ap support 40 bw { if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI40Mhz) // ap support 40 bw short GI retValue = true; else retValue = false; } else { if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI20Mhz) // ap support 40 bw short GI retValue = true; else retValue = false; } return retValue; } u16 HTHalfMcsToDataRate(struct ieee80211_device* ieee, u8 nMcsRate) { u8 is40MHz; u8 isShortGI; is40MHz = (IsHTHalfNmode40Bandwidth(ieee))?1:0; isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz))? 1:0; return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)]; } u16 HTMcsToDataRate( struct ieee80211_device* ieee, u8 nMcsRate) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; u8 is40MHz = (pHTInfo->bCurBW40MHz)?1:0; u8 isShortGI = (pHTInfo->bCurBW40MHz)? ((pHTInfo->bCurShortGI40MHz)?1:0): ((pHTInfo->bCurShortGI20MHz)?1:0); return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)]; } /******************************************************************************************************************** *function: This function returns current datarate. * input: struct ieee80211_device* ieee * u8 nDataRate * output: none * return: tx rate * notice: quite unsure about how to use this function //wb * *****************************************************************************************************************/ u16 TxCountToDataRate( struct ieee80211_device* ieee, u8 nDataRate) { //PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; u16 CCKOFDMRate[12] = {0x02 , 0x04 , 0x0b , 0x16 , 0x0c , 0x12 , 0x18 , 0x24 , 0x30 , 0x48 , 0x60 , 0x6c}; u8 is40MHz = 0; u8 isShortGI = 0; if(nDataRate < 12) { return CCKOFDMRate[nDataRate]; } else { if (nDataRate >= 0x10 && nDataRate <= 0x1f)//if(nDataRate > 11 && nDataRate < 28 ) { is40MHz = 0; isShortGI = 0; // nDataRate = nDataRate - 12; } else if(nDataRate >=0x20 && nDataRate <= 0x2f ) //(27, 44) { is40MHz = 1; isShortGI = 0; //nDataRate = nDataRate - 28; } else if(nDataRate >= 0x30 && nDataRate <= 0x3f ) //(43, 60) { is40MHz = 0; isShortGI = 1; //nDataRate = nDataRate - 44; } else if(nDataRate >= 0x40 && nDataRate <= 0x4f ) //(59, 76) { is40MHz = 1; isShortGI = 1; //nDataRate = nDataRate - 60; } return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf]; } } bool IsHTHalfNmodeAPs(struct ieee80211_device* ieee) { bool retValue = false; struct ieee80211_network* net = &ieee->current_network; if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) || (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) || (memcmp(net->bssid, PCI_RALINK, 3)==0) || (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) || (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) || (net->ralink_cap_exist)) retValue = true; else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) || (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)|| (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)|| (memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) || (net->broadcom_cap_exist)) retValue = true; else if(net->bssht.bdRT2RTAggregation) retValue = true; else retValue = false; return retValue; } /******************************************************************************************************************** *function: This function returns peer IOT. * input: struct ieee80211_device* ieee * output: none * return: * notice: * *****************************************************************************************************************/ void HTIOTPeerDetermine(struct ieee80211_device* ieee) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; struct ieee80211_network* net = &ieee->current_network; if(net->bssht.bdRT2RTAggregation) pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK; else if(net->broadcom_cap_exist) pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM; else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) || (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)|| (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)|| (memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) ) pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM; else if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) || (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) || (memcmp(net->bssid, PCI_RALINK, 3)==0) || (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) || (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) || net->ralink_cap_exist) pHTInfo->IOTPeer = HT_IOT_PEER_RALINK; else if(net->atheros_cap_exist) pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS; else if(memcmp(net->bssid, CISCO_BROADCOM, 3)==0) pHTInfo->IOTPeer = HT_IOT_PEER_CISCO; else pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN; IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer); } /******************************************************************************************************************** *function: Check whether driver should declare received rate up to MCS13 only since some chipset is not good * at receiving MCS14~15 frame from some AP. * input: struct ieee80211_device* ieee * u8 * PeerMacAddr * output: none * return: return 1 if driver should declare MCS13 only(otherwise return 0) * *****************************************************************************************************************/ u8 HTIOTActIsDisableMCS14(struct ieee80211_device* ieee, u8* PeerMacAddr) { u8 ret = 0; return ret; } /** * Function: HTIOTActIsDisableMCS15 * * Overview: Check whether driver should declare capability of receiving MCS15 * * Input: * PADAPTER Adapter, * * Output: None * Return: true if driver should disable MCS15 * 2008.04.15 Emily */ bool HTIOTActIsDisableMCS15(struct ieee80211_device* ieee) { bool retValue = false; #ifdef TODO // Apply for 819u only #if (HAL_CODE_BASE==RTL8192) #if (DEV_BUS_TYPE == USB_INTERFACE) // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15 retValue = true; #elif (DEV_BUS_TYPE == PCI_INTERFACE) // Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12 // if(pBssDesc->bCiscoCapExist) // retValue = false; // else retValue = false; #endif #endif #endif // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15 return retValue; } /** * Function: HTIOTActIsDisableMCSTwoSpatialStream * * Overview: Check whether driver should declare capability of receiving All 2 ss packets * * Input: * PADAPTER Adapter, * * Output: None * Return: true if driver should disable all two spatial stream packet * 2008.04.21 Emily */ bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device* ieee, u8 *PeerMacAddr) { bool retValue = false; #ifdef TODO // Apply for 819u only #endif return retValue; } /******************************************************************************************************************** *function: Check whether driver should disable EDCA turbo mode * input: struct ieee80211_device* ieee * u8* PeerMacAddr * output: none * return: return 1 if driver should disable EDCA turbo mode(otherwise return 0) * *****************************************************************************************************************/ u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device* ieee, u8* PeerMacAddr) { u8 retValue = false; // default enable EDCA Turbo mode. // Set specific EDCA parameter for different AP in DM handler. return retValue; } /******************************************************************************************************************** *function: Check whether we need to use OFDM to sned MGNT frame for broadcom AP * input: struct ieee80211_network *network //current network we live * output: none * return: return 1 if true * *****************************************************************************************************************/ u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network) { u8 retValue = 0; // 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP. // 2008/01/28 MH We must prevent that we select null bssid to link. if(network->broadcom_cap_exist) { retValue = 1; } return retValue; } u8 HTIOTActIsCCDFsync(u8* PeerMacAddr) { u8 retValue = 0; if( (memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) || (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) || (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0)) { retValue = 1; } return retValue; } void HTResetIOTSetting( PRT_HIGH_THROUGHPUT pHTInfo ) { pHTInfo->IOTAction = 0; pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN; } /******************************************************************************************************************** *function: Construct Capablility Element in Beacon... if HTEnable is turned on * input: struct ieee80211_device* ieee * u8* posHTCap //pointer to store Capability Ele * u8* len //store length of CE * u8 IsEncrypt //whether encrypt, needed further * output: none * return: none * notice: posHTCap can't be null and should be initialized before. * *****************************************************************************************************************/ void HTConstructCapabilityElement(struct ieee80211_device* ieee, u8* posHTCap, u8* len, u8 IsEncrypt) { PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo; PHT_CAPABILITY_ELE pCapELE = NULL; //u8 bIsDeclareMCS13; if ((posHTCap == NULL) || (pHT == NULL)) { IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n"); return; } memset(posHTCap, 0, *len); if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) { u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap)); pCapELE = (PHT_CAPABILITY_ELE)&(posHTCap[4]); }else { pCapELE = (PHT_CAPABILITY_ELE)posHTCap; } //HT capability info pCapELE->AdvCoding = 0; // This feature is not supported now!! if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) { pCapELE->ChlWidth = 0; } else { pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0); } // pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0); pCapELE->MimoPwrSave = pHT->SelfMimoPs; pCapELE->GreenField = 0; // This feature is not supported now!! pCapELE->ShortGI20Mhz = 1; // We can receive Short GI!! pCapELE->ShortGI40Mhz = 1; // We can receive Short GI!! //DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r", //pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz); pCapELE->TxSTBC = 1; pCapELE->RxSTBC = 0; pCapELE->DelayBA = 0; // Do not support now!! pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0; pCapELE->DssCCk = ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0); pCapELE->PSMP = 0; // Do not support now!! pCapELE->LSigTxopProtect = 0; // Do not support now!! //MAC HT parameters info // TODO: Nedd to take care of this part IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk); if( IsEncrypt) { pCapELE->MPDUDensity = 7; // 8us pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K } else { pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K pCapELE->MPDUDensity = 0; // no density } //Supported MCS set memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16); if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15) pCapELE->MCS[1] &= 0x7f; if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14) pCapELE->MCS[1] &= 0xbf; if(pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS) pCapELE->MCS[1] &= 0x00; // 2008.06.12 // For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7. if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) { int i; for(i = 1; i< 16; i++) pCapELE->MCS[i] = 0; } //Extended HT Capability Info memset(&pCapELE->ExtHTCapInfo, 0, 2); //TXBF Capabilities memset(pCapELE->TxBFCap, 0, 4); //Antenna Selection Capabilities pCapELE->ASCap = 0; //add 2 to give space for element ID and len when construct frames if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) *len = 30 + 2; else *len = 26 + 2; // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2); //Print each field in detail. Driver should not print out this message by default // HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()"); return; } /******************************************************************************************************************** *function: Construct Information Element in Beacon... if HTEnable is turned on * input: struct ieee80211_device* ieee * u8* posHTCap //pointer to store Information Ele * u8* len //store len of * u8 IsEncrypt //whether encrypt, needed further * output: none * return: none * notice: posHTCap can't be null and be initialized before. only AP and IBSS sta should do this * *****************************************************************************************************************/ void HTConstructInfoElement(struct ieee80211_device* ieee, u8* posHTInfo, u8* len, u8 IsEncrypt) { PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo; PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo; if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) { IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n"); return; } memset(posHTInfo, 0, *len); if ( (ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) //ap mode is not currently supported { pHTInfoEle->ControlChl = ieee->current_network.channel; pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false)?HT_EXTCHNL_OFFSET_NO_EXT: (ieee->current_network.channel<=6)? HT_EXTCHNL_OFFSET_UPPER:HT_EXTCHNL_OFFSET_LOWER); pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz; pHTInfoEle->RIFS = 0; pHTInfoEle->PSMPAccessOnly = 0; pHTInfoEle->SrvIntGranularity = 0; pHTInfoEle->OptMode = pHT->CurrentOpMode; pHTInfoEle->NonGFDevPresent = 0; pHTInfoEle->DualBeacon = 0; pHTInfoEle->SecondaryBeacon = 0; pHTInfoEle->LSigTxopProtectFull = 0; pHTInfoEle->PcoActive = 0; pHTInfoEle->PcoPhase = 0; memset(pHTInfoEle->BasicMSC, 0, 16); *len = 22 + 2; //same above } else { //STA should not generate High Throughput Information Element *len = 0; } //IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2); //HTDebugHTInfo(posHTInfo, "HTConstructInforElement"); return; } /* * According to experiment, Realtek AP to STA (based on rtl8190) may achieve best performance * if both STA and AP set limitation of aggregation size to 32K, that is, set AMPDU density to 2 * (Ref: IEEE 11n specification). However, if Realtek STA associates to other AP, STA should set * limitation of aggregation size to 8K, otherwise, performance of traffic stream from STA to AP * will be much less than the traffic stream from AP to STA if both of the stream runs concurrently * at the same time. * * Frame Format * Element ID Length OUI Type1 Reserved * 1 byte 1 byte 3 bytes 1 byte 1 byte * * OUI = 0x00, 0xe0, 0x4c, * Type = 0x02 * Reserved = 0x00 * * 2007.8.21 by Emily */ /******************************************************************************************************************** *function: Construct Information Element in Beacon... in RT2RT condition * input: struct ieee80211_device* ieee * u8* posRT2RTAgg //pointer to store Information Ele * u8* len //store len * output: none * return: none * notice: * *****************************************************************************************************************/ void HTConstructRT2RTAggElement(struct ieee80211_device* ieee, u8* posRT2RTAgg, u8* len) { if (posRT2RTAgg == NULL) { IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n"); return; } memset(posRT2RTAgg, 0, *len); *posRT2RTAgg++ = 0x00; *posRT2RTAgg++ = 0xe0; *posRT2RTAgg++ = 0x4c; *posRT2RTAgg++ = 0x02; *posRT2RTAgg++ = 0x01; *posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02; if(ieee->bSupportRemoteWakeUp) { *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW; } *len = 6 + 2; return; #ifdef TODO #if (HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE) /* //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this section of code. if(IS_UNDER_11N_AES_MODE(Adapter)) { posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU; }else { posRT2RTAgg->Octet[5] &= 0xfb; } */ #else // Do Nothing #endif posRT2RTAgg->Length = 6; #endif } /******************************************************************************************************************** *function: Pick the right Rate Adaptive table to use * input: struct ieee80211_device* ieee * u8* pOperateMCS //A pointer to MCS rate bitmap * return: always we return true * notice: * *****************************************************************************************************************/ u8 HT_PickMCSRate(struct ieee80211_device* ieee, u8* pOperateMCS) { u8 i; if (pOperateMCS == NULL) { IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n"); return false; } switch(ieee->mode) { case IEEE_A: case IEEE_B: case IEEE_G: //legacy rate routine handled at selectedrate //no MCS rate for(i=0;i<=15;i++){ pOperateMCS[i] = 0; } break; case IEEE_N_24G: //assume CCK rate ok case IEEE_N_5G: // Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G. // Legacy part shall be handled at SelectRateSet(). //HT part // TODO: may be different if we have different number of antenna pOperateMCS[0] &=RATE_ADPT_1SS_MASK; //support MCS 0~7 pOperateMCS[1] &=RATE_ADPT_2SS_MASK; pOperateMCS[3] &=RATE_ADPT_MCS32_MASK; break; //should never reach here default: break; } return true; } /* * Description: * This function will get the highest speed rate in input MCS set. * * /param Adapter Pionter to Adapter entity * pMCSRateSet Pointer to MCS rate bitmap * pMCSFilter Pointer to MCS rate filter * * /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter. * */ /******************************************************************************************************************** *function: This function will get the highest speed rate in input MCS set. * input: struct ieee80211_device* ieee * u8* pMCSRateSet //Pointer to MCS rate bitmap * u8* pMCSFilter //Pointer to MCS rate filter * return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter * notice: * *****************************************************************************************************************/ u8 HTGetHighestMCSRate(struct ieee80211_device* ieee, u8* pMCSRateSet, u8* pMCSFilter) { u8 i, j; u8 bitMap; u8 mcsRate = 0; u8 availableMcsRate[16]; if (pMCSRateSet == NULL || pMCSFilter == NULL) { IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n"); return false; } for(i=0; i<16; i++) availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i]; for(i = 0; i < 16; i++) { if(availableMcsRate[i] != 0) break; } if(i == 16) return false; for(i = 0; i < 16; i++) { if(availableMcsRate[i] != 0) { bitMap = availableMcsRate[i]; for(j = 0; j < 8; j++) { if((bitMap%2) != 0) { if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate)) mcsRate = (8*i+j); } bitMap = bitMap>>1; } } } return (mcsRate|0x80); } /* ** **1.Filter our operation rate set with AP's rate set **2.shall reference channel bandwidth, STBC, Antenna number **3.generate rate adative table for firmware **David 20060906 ** ** \pHTSupportedCap: the connected STA's supported rate Capability element */ u8 HTFilterMCSRate( struct ieee80211_device* ieee, u8* pSupportMCS, u8* pOperateMCS) { u8 i=0; // filter out operational rate set not supported by AP, the lenth of it is 16 for(i=0;i<=15;i++){ pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i]; } // TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number // TODO: fill suggested rate adaptive rate index and give firmware info using Tx command packet // we also shall suggested the first start rate set according to our singal strength HT_PickMCSRate(ieee, pOperateMCS); // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7. if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) pOperateMCS[1] = 0; // // For RTL819X, we support only MCS0~15. // And also, we do not know how to use MCS32 now. // for(i=2; i<=15; i++) pOperateMCS[i] = 0; return true; } void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset); void HTOnAssocRsp(struct ieee80211_device *ieee) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; PHT_CAPABILITY_ELE pPeerHTCap = NULL; PHT_INFORMATION_ELE pPeerHTInfo = NULL; u16 nMaxAMSDUSize = 0; u8* pMcsFilter = NULL; static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily if( pHTInfo->bCurrentHTSupport == false ) { IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n"); return; } IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n"); // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE)); // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE)); // HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq"); // HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq"); // if(!memcmp(pHTInfo->PeerHTCapBuf,EWC11NHTCap, sizeof(EWC11NHTCap))) pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]); else pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf); if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo))) pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]); else pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf); //////////////////////////////////////////////////////// // Configurations: //////////////////////////////////////////////////////// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE)); // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE)); // Config Supported Channel Width setting // HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset)); // if(pHTInfo->bCurBW40MHz == true) pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false); // // Update short GI/ long GI setting // // TODO: pHTInfo->bCurShortGI20MHz= ((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false); pHTInfo->bCurShortGI40MHz= ((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false); // // Config TX STBC setting // // TODO: // // Config DSSS/CCK mode in 40MHz mode // // TODO: pHTInfo->bCurSuppCCK = ((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false); // // Config and configure A-MSDU setting // pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support; nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935; if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize ) pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize; else pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; // // Config A-MPDU setting // pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable; // <1> Decide AMPDU Factor // By Emily if(!pHTInfo->bRegRT2RTAggregation) { // Decide AMPDU Factor according to protocol handshake if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor) pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; else pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; }else { // Set MPDU density to 2 to Realtek AP, and set it to 0 for others // Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily if (ieee->current_network.bssht.bdRT2RTAggregation) { if( ieee->pairwise_key_type != KEY_TYPE_NA) // Realtek may set 32k in security mode and 64k for others pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; else pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K; }else { if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K) pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor; else pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K; } } // <2> Set AMPDU Minimum MPDU Start Spacing // 802.11n 3.0 section 9.7d.3 if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity) pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density; else pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity; if(ieee->pairwise_key_type != KEY_TYPE_NA ) pHTInfo->CurrentMPDUDensity = 7; // 8us // Force TX AMSDU // Lanhsin: mark for tmp to avoid deauth by ap from s3 //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0) if(0) { pHTInfo->bCurrentAMPDUEnable = false; pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE; pHTInfo->ForcedAMSDUMaxSize = 7935; pHTInfo->IOTAction |= HT_IOT_ACT_TX_USE_AMSDU_8K; } // Rx Reorder Setting pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable; // // Filter out unsupported HT rate for this AP // Update RATR table // This is only for 8190 ,8192 or later product which using firmware to handle rate adaptive mechanism. // // Handle Ralink AP bad MCS rate set condition. Joseph. // This fix the bug of Ralink AP. This may be removed in the future. if(pPeerHTCap->MCS[0] == 0) pPeerHTCap->MCS[0] = 0xff; HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet); // // Config MIMO Power Save setting // pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave; if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC) pMcsFilter = MCS_FILTER_1SS; else pMcsFilter = MCS_FILTER_ALL; //WB add for MCS8 bug // pMcsFilter = MCS_FILTER_1SS; ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter); ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate; // // Config current operation mode. // pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode; } void HTSetConnectBwModeCallback(struct ieee80211_device* ieee); /******************************************************************************************************************** *function: initialize HT info(struct PRT_HIGH_THROUGHPUT) * input: struct ieee80211_device* ieee * output: none * return: none * notice: This function is called when * (1) MPInitialization Phase * (2) Receiving of Deauthentication from AP ********************************************************************************************************************/ // TODO: Should this funciton be called when receiving of Disassociation? void HTInitializeHTInfo(struct ieee80211_device* ieee) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; // // These parameters will be reset when receiving deauthentication packet // IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __FUNCTION__); pHTInfo->bCurrentHTSupport = false; // 40MHz channel support pHTInfo->bCurBW40MHz = false; pHTInfo->bCurTxBW40MHz = false; // Short GI support pHTInfo->bCurShortGI20MHz = false; pHTInfo->bCurShortGI40MHz = false; pHTInfo->bForcedShortGI = false; // CCK rate support // This flag is set to true to support CCK rate by default. // It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities only when associate to // 11N BSS. pHTInfo->bCurSuppCCK = true; // AMSDU related pHTInfo->bCurrent_AMSDU_Support = false; pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; // AMPUD related pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density; pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; // Initialize all of the parameters related to 11n memset((void*)(&(pHTInfo->SelfHTCap)), 0, sizeof(pHTInfo->SelfHTCap)); memset((void*)(&(pHTInfo->SelfHTInfo)), 0, sizeof(pHTInfo->SelfHTInfo)); memset((void*)(&(pHTInfo->PeerHTCapBuf)), 0, sizeof(pHTInfo->PeerHTCapBuf)); memset((void*)(&(pHTInfo->PeerHTInfoBuf)), 0, sizeof(pHTInfo->PeerHTInfoBuf)); pHTInfo->bSwBwInProgress = false; pHTInfo->ChnlOp = CHNLOP_NONE; // Set default IEEE spec for Draft N pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE; // Realtek proprietary aggregation mode pHTInfo->bCurrentRT2RTAggregation = false; pHTInfo->bCurrentRT2RTLongSlotTime = false; pHTInfo->IOTPeer = 0; pHTInfo->IOTAction = 0; //MCS rate initialized here { u8* RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]); RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7 RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15 RegHTSuppRateSets[4] = 0x01; //support MCS 32 } } /******************************************************************************************************************** *function: initialize Bss HT structure(struct PBSS_HT) * input: PBSS_HT pBssHT //to be initialized * output: none * return: none * notice: This function is called when initialize network structure ********************************************************************************************************************/ void HTInitializeBssDesc(PBSS_HT pBssHT) { pBssHT->bdSupportHT = false; memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf)); pBssHT->bdHTCapLen = 0; memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf)); pBssHT->bdHTInfoLen = 0; pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE; pBssHT->bdRT2RTAggregation = false; pBssHT->bdRT2RTLongSlotTime = false; } /******************************************************************************************************************** *function: initialize Bss HT structure(struct PBSS_HT) * input: struct ieee80211_device *ieee * struct ieee80211_network *pNetwork //usually current network we are live in * output: none * return: none * notice: This function should ONLY be called before association ********************************************************************************************************************/ void HTResetSelfAndSavePeerSetting(struct ieee80211_device* ieee, struct ieee80211_network * pNetwork) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; // u16 nMaxAMSDUSize; // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf; // PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf; // u8* pMcsFilter; u8 bIOTAction = 0; // // Save Peer Setting before Association // IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __FUNCTION__); /*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/ // if( pHTInfo->bEnableHT && pNetwork->bssht.bdSupportHT) if (pNetwork->bssht.bdSupportHT) { pHTInfo->bCurrentHTSupport = true; pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer; // Save HTCap and HTInfo information Element if(pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf)) memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen); if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf)) memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen); // Check whether RT to RT aggregation mode is enabled if(pHTInfo->bRegRT2RTAggregation) { pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation; pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime; } else { pHTInfo->bCurrentRT2RTAggregation = false; pHTInfo->bCurrentRT2RTLongSlotTime = false; } // Determine the IOT Peer Vendor. HTIOTPeerDetermine(ieee); // Decide IOT Action // Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided pHTInfo->IOTAction = 0; bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid); if(bIOTAction) pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14; bIOTAction = HTIOTActIsDisableMCS15(ieee); if(bIOTAction) pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15; bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid); if(bIOTAction) pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS; bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid); if(bIOTAction) pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO; bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork); if(bIOTAction) pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M; bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid); if(bIOTAction) pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC; } else { pHTInfo->bCurrentHTSupport = false; pHTInfo->bCurrentRT2RTAggregation = false; pHTInfo->bCurrentRT2RTLongSlotTime = false; pHTInfo->IOTAction = 0; } } void HTUpdateSelfAndPeerSetting(struct ieee80211_device* ieee, struct ieee80211_network * pNetwork) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf; PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf; if(pHTInfo->bCurrentHTSupport) { // // Config current operation mode. // if(pNetwork->bssht.bdHTInfoLen != 0) pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode; // // // } } void HTUseDefaultSetting(struct ieee80211_device* ieee) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; // u8 regBwOpMode; if(pHTInfo->bEnableHT) { pHTInfo->bCurrentHTSupport = true; pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK; pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz; pHTInfo->bCurShortGI20MHz= pHTInfo->bRegShortGI20MHz; pHTInfo->bCurShortGI40MHz= pHTInfo->bRegShortGI40MHz; pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support; pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize; pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable; pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor; pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density; // Set BWOpMode register //update RATR index0 HTFilterMCSRate(ieee, ieee->Regdot11HTOperationalRateSet, ieee->dot11HTOperationalRateSet); //function below is not implemented at all. WB #ifdef TODO Adapter->HalFunc.InitHalRATRTableHandler( Adapter, &pMgntInfo->dot11OperationalRateSet, pMgntInfo->dot11HTOperationalRateSet); #endif ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, MCS_FILTER_ALL); ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate; } else { pHTInfo->bCurrentHTSupport = false; } return; } /******************************************************************************************************************** *function: check whether HT control field exists * input: struct ieee80211_device *ieee * u8* pFrame //coming skb->data * output: none * return: return true if HT control field exists(false otherwise) * notice: ********************************************************************************************************************/ u8 HTCCheck(struct ieee80211_device* ieee, u8* pFrame) { if(ieee->pHTInfo->bCurrentHTSupport) { if( (IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) { IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n"); return true; } } return false; } // // This function set bandwidth mode in protocol layer. // void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; // u32 flags = 0; if(pHTInfo->bRegBW40MHz == false) return; // To reduce dummy operation // if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) || // (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset)) // return; // spin_lock_irqsave(&(ieee->bw_spinlock), flags); if(pHTInfo->bSwBwInProgress) { // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags); return; } //if in half N mode, set to 20M bandwidth please 09.08.2008 WB. if(Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))) { // Handle Illegal extension channel offset!! if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER) Offset = HT_EXTCHNL_OFFSET_NO_EXT; if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) { pHTInfo->bCurBW40MHz = true; pHTInfo->CurSTAExtChnlOffset = Offset; } else { pHTInfo->bCurBW40MHz = false; pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT; } } else { pHTInfo->bCurBW40MHz = false; pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT; } pHTInfo->bSwBwInProgress = true; // TODO: 2007.7.13 by Emily Wait 2000ms in order to guarantee that switching // bandwidth is executed after scan is finished. It is a temporal solution // because software should ganrantee the last operation of switching bandwidth // is executed properlly. HTSetConnectBwModeCallback(ieee); // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags); } void HTSetConnectBwModeCallback(struct ieee80211_device* ieee) { PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __FUNCTION__); if(pHTInfo->bCurBW40MHz) { if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_UPPER) ieee->set_chan(ieee->dev, ieee->current_network.channel+2); else if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_LOWER) ieee->set_chan(ieee->dev, ieee->current_network.channel-2); else ieee->set_chan(ieee->dev, ieee->current_network.channel); ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset); } else { ieee->set_chan(ieee->dev, ieee->current_network.channel); ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT); } pHTInfo->bSwBwInProgress = false; } EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);