//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. Shoud 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, "<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]);
        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, "<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, "\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 0
        if(pMgntInfo->bHalfNMode == false)
                retValue = false;
        else
#endif
        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 )|| (memcmp(net->bssid, DLINK_ATHEROS, 3) == 0))
                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;
#if 0
        // Apply for 819u only
#if (HAL_CODE_BASE==RTL8192 && DEV_BUS_TYPE==USB_INTERFACE)
        if((memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) ||
                (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)
            )
        {
                ret = 1;
        }


        if(pHTInfo->bCurrentRT2RTAggregation)
        {
                // The parameter of pHTInfo->bCurrentRT2RTAggregation must be decided previously
                ret = 1;
        }
#endif
#endif
        return ret;
 }


/**
* Function:     HTIOTActIsDisableMCS15
*
* Overview:     Check whether driver should declare capability of receving 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 receving 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
//#if (HAL_CODE_BASE==RTL8192)

        //This rule only apply to Belkin(Ralink) AP
        if(IS_UNDER_11N_AES_MODE(Adapter))
        {
                if((PlatformCompareMemory(PeerMacAddr, BELKINF5D8233V1_RALINK, 3)==0) ||
                                (PlatformCompareMemory(PeerMacAddr, PCI_RALINK, 3)==0) ||
                                (PlatformCompareMemory(PeerMacAddr, EDIMAX_RALINK, 3)==0))
                {
                        //Set True to disable this function. Disable by default, Emily, 2008.04.23
                        retValue = false;
                }
        }

//#endif
#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;
#if 0
        if((memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0)||
                (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
                (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)||
                (memcmp(PeerMacAddr, NETGEAR834Bv2_BROADCOM, 3)==0))

        {
                retValue = 1;   //Linksys disable EDCA turbo mode
        }

        return retValue;
#endif
}

/********************************************************************************************************************
 *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);
#if 0
//I need move this function to other places, such as rx?
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
void HTOnAssocRsp_wq(struct work_struct *work)
{
        struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, ht_onAssRsp);
#else
void HTOnAssocRsp_wq(struct ieee80211_device *ieee)
{
#endif

#endif
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 0
                osTmp= PacketGetElement( asocpdu, EID_Vendor, OUI_SUB_REALTEK_AGG, OUI_SUBTYPE_DONT_CARE);
                if(osTmp.Length >= 5)   //00:e0:4c:02:00
#endif
                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 1
        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
#else
        if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
                pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
        else
                pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
#endif
        // 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;
}
#if 0
//below function has merged into ieee80211_network_init() in ieee80211_rx.c
void
HTParsingHTCapElement(
        IN      PADAPTER                Adapter,
        IN      OCTET_STRING    HTCapIE,
        OUT     PRT_WLAN_BSS    pBssDesc
)
{
        PMGNT_INFO                              pMgntInfo = &Adapter->MgntInfo;

        if( HTCapIE.Length > sizeof(pBssDesc->BssHT.bdHTCapBuf) )
        {
                RT_TRACE( COMP_HT, DBG_LOUD, ("HTParsingHTCapElement(): HT Capability Element length is too long!\n") );
                return;
        }

        // TODO: Check the correctness of HT Cap
        //Print each field in detail. Driver should not print out this message by default
        if(!pMgntInfo->mActingAsAp && !pMgntInfo->mAssoc)
                HTDebugHTCapability(DBG_TRACE, Adapter, &HTCapIE, (pu8)"HTParsingHTCapElement()");

        HTCapIE.Length = HTCapIE.Length > sizeof(pBssDesc->BssHT.bdHTCapBuf)?\
                sizeof(pBssDesc->BssHT.bdHTCapBuf):HTCapIE.Length;      //prevent from overflow

        CopyMem(pBssDesc->BssHT.bdHTCapBuf, HTCapIE.Octet, HTCapIE.Length);
        pBssDesc->BssHT.bdHTCapLen = HTCapIE.Length;

}


void
HTParsingHTInfoElement(
        PADAPTER                Adapter,
        OCTET_STRING    HTInfoIE,
        PRT_WLAN_BSS    pBssDesc
)
{
        PMGNT_INFO                              pMgntInfo = &Adapter->MgntInfo;

        if( HTInfoIE.Length > sizeof(pBssDesc->BssHT.bdHTInfoBuf))
        {
                RT_TRACE( COMP_HT, DBG_LOUD, ("HTParsingHTInfoElement(): HT Information Element length is too long!\n") );
                return;
        }

        // TODO: Check the correctness of HT Info
        //Print each field in detail. Driver should not print out this message by default
        if(!pMgntInfo->mActingAsAp && !pMgntInfo->mAssoc)
                HTDebugHTInfo(DBG_TRACE, Adapter, &HTInfoIE, (pu8)"HTParsingHTInfoElement()");

        HTInfoIE.Length = HTInfoIE.Length > sizeof(pBssDesc->BssHT.bdHTInfoBuf)?\
                sizeof(pBssDesc->BssHT.bdHTInfoBuf):HTInfoIE.Length;    //prevent from overflow

        CopyMem( pBssDesc->BssHT.bdHTInfoBuf, HTInfoIE.Octet, HTInfoIE.Length);
        pBssDesc->BssHT.bdHTInfoLen = HTInfoIE.Length;
}

/*
  * Get HT related information from beacon and save it in BssDesc
  *
  * (1) Parse HTCap, and HTInfo, and record whether it is 11n AP
  * (2) If peer is HT, but not WMM, call QosSetLegacyWMMParamWithHT()
  * (3) Check whether peer is Realtek AP (for Realtek proprietary aggregation mode).
  * Input:
  *             PADAPTER        Adapter
  *
  * Output:
  *             PRT_TCB         BssDesc
  *
*/
void HTGetValueFromBeaconOrProbeRsp(
        PADAPTER                        Adapter,
        POCTET_STRING           pSRCmmpdu,
        PRT_WLAN_BSS            bssDesc
)
{
        PMGNT_INFO                              pMgntInfo = &Adapter->MgntInfo;
        PRT_HIGH_THROUGHPUT             pHTInfo = GET_HT_INFO(pMgntInfo);
        OCTET_STRING                            HTCapIE, HTInfoIE, HTRealtekAgg, mmpdu;
        OCTET_STRING                            BroadcomElement, CiscoElement;

        mmpdu.Octet = pSRCmmpdu->Octet;
        mmpdu.Length = pSRCmmpdu->Length;

        //2Note:
        //   Mark for IOT testing using  Linksys WRT350N, This AP does not contain WMM IE  when
        //   it is configured at pure-N mode.
        //      if(bssDesc->BssQos.bdQoSMode & QOS_WMM)
        //

        HTInitializeBssDesc (&bssDesc->BssHT);

        //2<1> Parse HTCap, and HTInfo
        // Get HT Capability IE: (1) Get IEEE Draft N IE or (2) Get EWC IE
        HTCapIE = PacketGetElement(mmpdu, EID_HTCapability, OUI_SUB_DONT_CARE, OUI_SUBTYPE_DONT_CARE);
        if(HTCapIE.Length == 0)
        {
                HTCapIE = PacketGetElement(mmpdu, EID_Vendor, OUI_SUB_11N_EWC_HT_CAP, OUI_SUBTYPE_DONT_CARE);
                if(HTCapIE.Length != 0)
                        bssDesc->BssHT.bdHTSpecVer= HT_SPEC_VER_EWC;
        }
        if(HTCapIE.Length != 0)
                HTParsingHTCapElement(Adapter, HTCapIE, bssDesc);

        // Get HT Information IE: (1) Get IEEE Draft N IE or (2) Get EWC IE
        HTInfoIE = PacketGetElement(mmpdu, EID_HTInfo, OUI_SUB_DONT_CARE, OUI_SUBTYPE_DONT_CARE);
        if(HTInfoIE.Length == 0)
        {
                HTInfoIE = PacketGetElement(mmpdu, EID_Vendor, OUI_SUB_11N_EWC_HT_INFO, OUI_SUBTYPE_DONT_CARE);
                if(HTInfoIE.Length != 0)
                                bssDesc->BssHT.bdHTSpecVer  = HT_SPEC_VER_EWC;
        }
        if(HTInfoIE.Length != 0)
                HTParsingHTInfoElement(Adapter, HTInfoIE, bssDesc);

        //2<2>If peer is HT, but not WMM, call QosSetLegacyWMMParamWithHT()
        if(HTCapIE.Length != 0)
        {
                bssDesc->BssHT.bdSupportHT = true;
                if(bssDesc->BssQos.bdQoSMode == QOS_DISABLE)
                        QosSetLegacyWMMParamWithHT(Adapter, bssDesc);
        }
        else
        {
                bssDesc->BssHT.bdSupportHT = false;
        }

        //2<3>Check whether the peer is Realtek AP/STA
        if(pHTInfo->bRegRT2RTAggregation)
        {
                if(bssDesc->BssHT.bdSupportHT)
                {
                        HTRealtekAgg = PacketGetElement(mmpdu, EID_Vendor, OUI_SUB_REALTEK_AGG, OUI_SUBTYPE_DONT_CARE);
                        if(HTRealtekAgg.Length >=5 )
                        {
                                bssDesc->BssHT.bdRT2RTAggregation = true;

                                if((HTRealtekAgg.Octet[4]==1) && (HTRealtekAgg.Octet[5] & 0x02))
                                        bssDesc->BssHT.bdRT2RTLongSlotTime = true;
                        }
                }
        }

        //
        // 2008/01/25 MH Get Broadcom AP IE for manamgent frame CCK rate problem.
        // AP can not receive CCK managemtn from from 92E.
        //

        // Initialize every new bss broadcom cap exist as false..
        bssDesc->bBroadcomCapExist= false;

        if(HTCapIE.Length != 0 || HTInfoIE.Length != 0)
        {
                u4Byte  Length = 0;

                FillOctetString(BroadcomElement, NULL, 0);

                BroadcomElement = PacketGetElement( mmpdu, EID_Vendor, OUI_SUB_BROADCOM_IE_1, OUI_SUBTYPE_DONT_CARE);
                Length += BroadcomElement.Length;
                BroadcomElement = PacketGetElement( mmpdu, EID_Vendor, OUI_SUB_BROADCOM_IE_2, OUI_SUBTYPE_DONT_CARE);
                Length += BroadcomElement.Length;
                BroadcomElement = PacketGetElement( mmpdu, EID_Vendor, OUI_SUB_BROADCOM_IE_3, OUI_SUBTYPE_DONT_CARE);
                Length += BroadcomElement.Length;

                if(Length > 0)
                        bssDesc->bBroadcomCapExist = true;
        }


        // For Cisco IOT issue
        CiscoElement = PacketGetElement( mmpdu, EID_Vendor, OUI_SUB_CISCO_IE, OUI_SUBTYPE_DONT_CARE);
        if(CiscoElement.Length != 0){ // 3: 0x00, 0x40, 0x96 ....
                bssDesc->bCiscoCapExist = true;
        }else{
                bssDesc->bCiscoCapExist = false;
        }
}


#endif
/********************************************************************************************************************
 *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;

                //
                // <TODO: Config according to OBSS non-HT STA present!!>
                //
        }
}

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->CurrentMPDUDensity;

                // 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 extention 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 garantee 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;
}

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
//EXPORT_SYMBOL_NOVERS(HTUpdateSelfAndPeerSetting);
#else
//EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);
#endif