diff options
Diffstat (limited to 'drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c')
| -rw-r--r-- | drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c | 1295 |
1 files changed, 1295 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c new file mode 100644 index 0000000000..a93f09033d --- /dev/null +++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c @@ -0,0 +1,1295 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * 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" + +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; + + /* + * 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 + struct ht_capability_ele *pCapELE; + + if (!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) { + //EWC IE + IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__); + pCapELE = (struct ht_capability_ele *)(&CapIE[4]); + } else { + pCapELE = (struct ht_capability_ele *)(&CapIE[0]); + } + IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Capability>. 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]); +} + +/* + *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", __func__); + pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]); + } else { + pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]); + } + + IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Information Element>. Called by %s\n", TitleString); + + IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl); + IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSecondary 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]); +} + +static 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: + */ +static 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) + */ +static u8 HTIOTActIsDisableMCS14(struct ieee80211_device *ieee, u8 *PeerMacAddr) +{ + return 0; +} + +/* + * 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 + */ +static 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 + */ +static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee, + u8 *PeerMacAddr) +{ +#ifdef TODO + // Apply for 819u only +#endif + return false; +} + +/* + *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) + */ +static u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device *ieee, + u8 *PeerMacAddr) +{ /* default enable EDCA Turbo mode. */ + return false; +} + +/* + *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 + */ +static 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; +} + +static 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; + struct ht_capability_ele *pCapELE = NULL; + //u8 bIsDeclareMCS13; + + if (!posHTCap || !pHT) { + IEEE80211_DEBUG(IEEE80211_DL_ERR, + "posHTCap or pHTInfo can't be null in %s\n", + __func__); + return; + } + memset(posHTCap, 0, *len); + if (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) { + static const u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; + + memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap)); + pCapELE = (struct ht_capability_ele *)&posHTCap[4]; + } else { + pCapELE = (struct ht_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()"); +} + +/* + *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 || !pHTInfoEle) { + IEEE80211_DEBUG(IEEE80211_DL_ERR, + "posHTInfo or pHTInfoEle can't be null in %s\n", + __func__); + 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) ? 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"); +} + +/* + * 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) { + IEEE80211_DEBUG(IEEE80211_DL_ERR, + "posRT2RTAgg can't be null in %s\n", + __func__); + 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: + */ +static u8 HT_PickMCSRate(struct ieee80211_device *ieee, u8 *pOperateMCS) +{ + if (!pOperateMCS) { + IEEE80211_DEBUG(IEEE80211_DL_ERR, + "pOperateMCS can't be null in %s\n", + __func__); + return false; + } + + switch (ieee->mode) { + case IEEE_A: + case IEEE_B: + case IEEE_G: + //legacy rate routine handled at selectedrate + + //no MCS rate + memset(pOperateMCS, 0, 16); + 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 || !pMCSFilter) { + IEEE80211_DEBUG(IEEE80211_DL_ERR, + "pMCSRateSet or pMCSFilter can't be null in %s\n", + __func__); + 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 >>= 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 + */ +static u8 HTFilterMCSRate(struct ieee80211_device *ieee, u8 *pSupportMCS, + u8 *pOperateMCS) +{ + u8 i = 0; + + // filter out operational rate set not supported by AP, the length 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 signal 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 HTOnAssocRsp(struct ieee80211_device *ieee) +{ + PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; + struct ht_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) { + IEEE80211_DEBUG(IEEE80211_DL_ERR, + "<=== %s: HT_DISABLE\n", + __func__); + return; + } + IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n"); +// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(struct 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 = (struct ht_capability_ele *)(&pHTInfo->PeerHTCapBuf[4]); + else + pPeerHTCap = (struct ht_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(struct ht_capability_ele)); +// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE)); + // Config Supported Channel Width setting + // + HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth), (enum ht_extension_chan_offset)(pPeerHTInfo->ExtChlOffset)); + + pHTInfo->bCurTxBW40MHz = (pPeerHTInfo->RecommemdedTxWidth == 1); + + /* + * Update short GI/ long GI setting + * + * TODO: + */ + pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz && + (pPeerHTCap->ShortGI20Mhz == 1); + pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz && + (pPeerHTCap->ShortGI40Mhz == 1); + + /* + * Config TX STBC setting + * + * TODO: + */ + + /* + * Config DSSS/CCK mode in 40MHz mode + * + * TODO: + */ + pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK && + (pPeerHTCap->DssCCk == 1); + + /* + * 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 { + pHTInfo->CurrentAMPDUFactor = min_t(u32, pPeerHTCap->MaxRxAMPDUFactor, + HT_AGG_SIZE_32K); + } + } + + /* + * <2> Set AMPDU Minimum MPDU Start Spacing + * 802.11n 3.0 section 9.7d.3 + */ + pHTInfo->CurrentMPDUDensity = max_t(u32, pHTInfo->MPDU_Density, + 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; +} + +/* + *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", __func__); + 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(&pHTInfo->SelfHTCap, 0, sizeof(pHTInfo->SelfHTCap)); + memset(&pHTInfo->SelfHTInfo, 0, sizeof(pHTInfo->SelfHTInfo)); + memset(&pHTInfo->PeerHTCapBuf, 0, sizeof(pHTInfo->PeerHTCapBuf)); + memset(&pHTInfo->PeerHTInfoBuf, 0, sizeof(pHTInfo->PeerHTInfoBuf)); + + pHTInfo->bSwBwInProgress = false; + + // 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; +// struct ht_capability_ele *pPeerHTCap = (struct ht_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", __func__); + /*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; +// struct ht_capability_ele *pPeerHTCap = (struct ht_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; + + /* + * <TODO: Config according to OBSS non-HT STA present!!> + */ + } +} +EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting); + +/* + *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; +} + +static void HTSetConnectBwModeCallback(struct ieee80211_device *ieee) +{ + PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; + + IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __func__); + + 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; +} + +/* + * This function set bandwidth mode in protocol layer. + */ +void HTSetConnectBwMode(struct ieee80211_device *ieee, enum ht_channel_width Bandwidth, enum ht_extension_chan_offset Offset) +{ + PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo; +// u32 flags = 0; + + if (!pHTInfo->bRegBW40MHz) + 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); +} |