rtl8192u/ieee80211/rtl819x_HTProc.c

//As this function is mainly ported from Windows driver, so leave the name little changed. If any confusion caused, tell me. Created by WB. 2008.05.08
#include "ieee80211.h"
#include "rtl819x_HT.h"
u8 MCS_FILTER_ALL[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

u16 MCS_DATA_RATE[2][2][77] =
	{	{	{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78 ,104, 156, 208, 234, 260,
			39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416, 468, 520,
			0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182, 182, 208, 156, 195,
			195, 234, 273, 273, 312, 130, 156, 181, 156, 181, 208, 234, 208, 234, 260, 260,
			286, 195, 234, 273, 234, 273, 312, 351, 312, 351, 390, 390, 429},			// Long GI, 20MHz
			{14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
			43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520, 578,
			0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231, 173, 217,
			217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260, 231, 260, 289, 289,
			318, 217, 260, 303, 260, 303, 347, 390, 347, 390, 433, 433, 477}	},		// Short GI, 20MHz
		{	{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486, 540,
			81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648, 864, 972, 1080,
			12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324, 378, 378, 432, 324, 405,
			405, 486, 567, 567, 648, 270, 324, 378, 324, 378, 432, 486, 432, 486, 540, 540,
			594, 405, 486, 567, 486, 567, 648, 729, 648, 729, 810, 810, 891}, 	// Long GI, 40MHz
			{30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540, 600,
			90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720, 960, 1080, 1200,
			13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360, 420, 420, 480, 360, 450,
			450, 540, 630, 630, 720, 300, 360, 420, 360, 420, 480, 540, 480, 540, 600, 600,
			660, 450, 540, 630, 540, 630, 720, 810, 720, 810, 900, 900, 990}	}	// Short GI, 40MHz
	};

static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f};
static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};	//cosa 03202008
static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
//static u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0};
static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};

// 2008/04/01 MH For Cisco G mode RX TP We need to change FW duration. Should we put the
// code in other place??
//static u8 WIFI_CISCO_G_AP[3] = {0x00, 0x40, 0x96};
/********************************************************************************************************************
 *function:  This function update default settings in pHTInfo structure
 *   input:  PRT_HIGH_THROUGHPUT	pHTInfo
 *  output:  none
 *  return:  none
 *  notice:  These value need be modified if any changes.
 * *****************************************************************************************************************/
void HTUpdateDefaultSetting(struct ieee80211_device* ieee)
{
	PRT_HIGH_THROUGHPUT	pHTInfo = ieee->pHTInfo;
	//const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo;

	//printk("pHTinfo:%p, &pHTinfo:%p, mptr:%p,  offsetof:%x\n", pHTInfo, &pHTInfo, __mptr, offsetof(struct ieee80211_device, pHTInfo));
	//printk("===>ieee:%p,\n", ieee);
	// ShortGI support
	pHTInfo->bRegShortGI20MHz= 1;
	pHTInfo->bRegShortGI40MHz= 1;

	// 40MHz channel support
	pHTInfo->bRegBW40MHz = 1;

	// CCK rate support in 40MHz channel
	if(pHTInfo->bRegBW40MHz)
		pHTInfo->bRegSuppCCK = 1;
	else
		pHTInfo->bRegSuppCCK = true;

	// AMSDU related
	pHTInfo->nAMSDU_MaxSize = 7935UL;
	pHTInfo->bAMSDU_Support = 0;

	// AMPDU related
	pHTInfo->bAMPDUEnable = 1;
	pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k)
	pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec

	// MIMO Power Save
	pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.)
	if(pHTInfo->SelfMimoPs == 2)
		pHTInfo->SelfMimoPs = 3;
	// 8190 only. Assign rate operation mode to firmware
	ieee->bTxDisableRateFallBack = 0;
	ieee->bTxUseDriverAssingedRate = 0;

#ifdef 	TO_DO_LIST
	// 8190 only. Assign duration operation mode to firmware
	pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur;
#endif
	// 8190 only, Realtek proprietary aggregation mode
	// Set MPDUDensity=2,   1: Set MPDUDensity=2(32k)  for Realtek AP and set MPDUDensity=0(8k) for others
	pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2,   1: Set MPDUDensity=2(32k)  for Realtek AP and set MPDUDensity=0(8k) for others

	// For Rx Reorder Control
	pHTInfo->bRegRxReorderEnable = 1;
	pHTInfo->RxReorderWinSize = 64;
	pHTInfo->RxReorderPendingTime = 30;

#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
	pHTInfo->UsbTxAggrNum = 4;
#endif
#ifdef USB_RX_AGGREGATION_SUPPORT
	pHTInfo->UsbRxFwAggrEn = 1;
	pHTInfo->UsbRxFwAggrPageNum = 24;
	pHTInfo->UsbRxFwAggrPacketNum = 8;
	pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us
#endif


}
/********************************************************************************************************************
 *function:  This function print out each field on HT capability IE mainly from (Beacon/ProbeRsp/AssocReq)
 *   input:  u8*	CapIE       //Capability IE to be printed out
 *   	     u8* 	TitleString //mainly print out caller function
 *  output:  none
 *  return:  none
 *  notice:  Driver should not print out this message by default.
 * *****************************************************************************************************************/
void HTDebugHTCapability(u8* CapIE, u8* TitleString )
{

	static u8	EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};	// For 11n EWC definition, 2007.07.17, by Emily
	PHT_CAPABILITY_ELE 		pCapELE;

	if(!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap)))
	{
		//EWC IE
		IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__);
		pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[4]);
	}else
		pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[0]);

	IEEE80211_DEBUG(IEEE80211_DL_HT, "<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((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) ||
		     (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) ||
		     (memcmp(net->bssid, PCI_RALINK, 3)==0) ||
		     (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) ||
		     (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) ||
		     (net->ralink_cap_exist))
		retValue = true;
	else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) ||
		    (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
		    (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)||
		    (memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) ||
		    (net->broadcom_cap_exist))
		  retValue = true;
	else if(net->bssht.bdRT2RTAggregation)
		retValue = true;
	else
		retValue = false;

	return retValue;
}

/********************************************************************************************************************
 *function:  This function returns peer IOT.
 *   input:  struct ieee80211_device* 	ieee
 *  output:  none
 *  return:
 *  notice:
 * *****************************************************************************************************************/
void HTIOTPeerDetermine(struct ieee80211_device* ieee)
{
	PRT_HIGH_THROUGHPUT	pHTInfo = ieee->pHTInfo;
	struct ieee80211_network* net = &ieee->current_network;
	if(net->bssht.bdRT2RTAggregation)
		pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
	else if(net->broadcom_cap_exist)
		pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
	else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) ||
			(memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
			(memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)||
			(memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) )
		pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
	else if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) ||
			(memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) ||
			(memcmp(net->bssid, PCI_RALINK, 3)==0) ||
			(memcmp(net->bssid, EDIMAX_RALINK, 3)==0) ||
			(memcmp(net->bssid, AIRLINK_RALINK, 3)==0) ||
			 net->ralink_cap_exist)
		pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
	else if(net->atheros_cap_exist)
		pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
	else if(memcmp(net->bssid, CISCO_BROADCOM, 3)==0)
		pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
	else
		pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;

	IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer);
}
/********************************************************************************************************************
 *function:  Check whether driver should declare received rate up to MCS13 only since some chipset is not good
 *	     at receiving MCS14~15 frame from some AP.
 *   input:  struct ieee80211_device* 	ieee
 *   	     u8 *			PeerMacAddr
 *  output:  none
 *  return:  return 1 if driver should declare MCS13 only(otherwise return 0)
  * *****************************************************************************************************************/
u8 HTIOTActIsDisableMCS14(struct ieee80211_device* ieee, u8* PeerMacAddr)
{
	u8 ret = 0;
	return ret;
 }


/**
* Function:	HTIOTActIsDisableMCS15
*
* Overview:	Check whether driver should declare capability of receiving MCS15
*
* Input:
*			PADAPTER		Adapter,
*
* Output:		None
* Return:     	true if driver should disable MCS15
* 2008.04.15	Emily
*/
bool HTIOTActIsDisableMCS15(struct ieee80211_device* ieee)
{
	bool retValue = false;

#ifdef TODO
	// Apply for 819u only
#if (HAL_CODE_BASE==RTL8192)

#if (DEV_BUS_TYPE == USB_INTERFACE)
	// Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15
	retValue = true;
#elif (DEV_BUS_TYPE == PCI_INTERFACE)
	// Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12
//	if(pBssDesc->bCiscoCapExist)
//		retValue = false;
//	else
		retValue = false;
#endif
#endif
#endif
	// Jerry Chang suggest that 8190 1x2 does not need to disable MCS15

	return retValue;
}

/**
* Function:	HTIOTActIsDisableMCSTwoSpatialStream
*
* Overview:	Check whether driver should declare capability of receiving All 2 ss packets
*
* Input:
*			PADAPTER		Adapter,
*
* Output:		None
* Return:     	true if driver should disable all two spatial stream packet
* 2008.04.21	Emily
*/
bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device* ieee, u8 *PeerMacAddr)
{
	bool retValue = false;

#ifdef TODO
	// Apply for 819u only
#endif
	return retValue;
}

/********************************************************************************************************************
 *function:  Check whether driver should disable EDCA turbo mode
 *   input:  struct ieee80211_device* 	ieee
 *   	     u8* 			PeerMacAddr
 *  output:  none
 *  return:  return 1 if driver should disable EDCA turbo mode(otherwise return 0)
  * *****************************************************************************************************************/
u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device* 	ieee, u8* PeerMacAddr)
{
	u8	retValue = false;	// default enable EDCA Turbo mode.
	// Set specific EDCA parameter for different AP in DM handler.

	return retValue;
}

/********************************************************************************************************************
 *function:  Check whether we need to use OFDM to sned MGNT frame for broadcom AP
 *   input:  struct ieee80211_network *network   //current network we live
 *  output:  none
 *  return:  return 1 if true
  * *****************************************************************************************************************/
u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network)
{
	u8	retValue = 0;

	// 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP.
	// 2008/01/28 MH We must prevent that we select null bssid to link.

	if(network->broadcom_cap_exist)
	{
		retValue = 1;
	}

	return retValue;
}

u8 HTIOTActIsCCDFsync(u8* PeerMacAddr)
{
	u8	retValue = 0;
	if(	(memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) ||
		(memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) ||
		(memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0))
	{
		retValue = 1;
	}

	return retValue;
}

void HTResetIOTSetting(
	PRT_HIGH_THROUGHPUT		pHTInfo
)
{
	pHTInfo->IOTAction = 0;
	pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
}


/********************************************************************************************************************
 *function:  Construct Capablility Element in Beacon... if HTEnable is turned on
 *   input:  struct ieee80211_device* 	ieee
 *   	     u8* 			posHTCap //pointer to store Capability Ele
 *   	     u8*			len //store length of CE
 *   	     u8				IsEncrypt //whether encrypt, needed further
 *  output:  none
 *  return:  none
 *  notice:  posHTCap can't be null and should be initialized before.
  * *****************************************************************************************************************/
void HTConstructCapabilityElement(struct ieee80211_device* ieee, u8* posHTCap, u8* len, u8 IsEncrypt)
{
	PRT_HIGH_THROUGHPUT	pHT = ieee->pHTInfo;
	PHT_CAPABILITY_ELE 	pCapELE = NULL;
	//u8 bIsDeclareMCS13;

	if ((posHTCap == NULL) || (pHT == NULL))
	{
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n");
		return;
	}
	memset(posHTCap, 0, *len);
	if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
	{
		u8	EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};	// For 11n EWC definition, 2007.07.17, by Emily
		memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
		pCapELE = (PHT_CAPABILITY_ELE)&(posHTCap[4]);
	}else
	{
		pCapELE = (PHT_CAPABILITY_ELE)posHTCap;
	}


	//HT capability info
	pCapELE->AdvCoding 		= 0; // This feature is not supported now!!
	if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
	{
		pCapELE->ChlWidth = 0;
	}
	else
	{
		pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
	}

//	pCapELE->ChlWidth 		= (pHT->bRegBW40MHz?1:0);
	pCapELE->MimoPwrSave 		= pHT->SelfMimoPs;
	pCapELE->GreenField		= 0; // This feature is not supported now!!
	pCapELE->ShortGI20Mhz		= 1; // We can receive Short GI!!
	pCapELE->ShortGI40Mhz		= 1; // We can receive Short GI!!
	//DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r",
		//pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz);
	pCapELE->TxSTBC 		= 1;
	pCapELE->RxSTBC 		= 0;
	pCapELE->DelayBA		= 0;	// Do not support now!!
	pCapELE->MaxAMSDUSize	= (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0;
	pCapELE->DssCCk 		= ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0);
	pCapELE->PSMP			= 0; // Do not support now!!
	pCapELE->LSigTxopProtect	= 0; // Do not support now!!


	//MAC HT parameters info
	// TODO: Nedd to take care of this part
	IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);

	if( IsEncrypt)
	{
		pCapELE->MPDUDensity 	= 7; // 8us
		pCapELE->MaxRxAMPDUFactor 	= 2; // 2 is for 32 K and 3 is 64K
	}
	else
	{
		pCapELE->MaxRxAMPDUFactor 	= 3; // 2 is for 32 K and 3 is 64K
		pCapELE->MPDUDensity 	= 0; // no density
	}

	//Supported MCS set
	memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
	if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
		pCapELE->MCS[1] &= 0x7f;

	if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
		pCapELE->MCS[1] &= 0xbf;

	if(pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
		pCapELE->MCS[1] &= 0x00;

	// 2008.06.12
	// For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7.
	if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
	{
		int i;
		for(i = 1; i< 16; i++)
			pCapELE->MCS[i] = 0;
	}

	//Extended HT Capability Info
	memset(&pCapELE->ExtHTCapInfo, 0, 2);


	//TXBF Capabilities
	memset(pCapELE->TxBFCap, 0, 4);

	//Antenna Selection Capabilities
	pCapELE->ASCap = 0;
//add 2 to give space for element ID and len when construct frames
	if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
		*len = 30 + 2;
	else
		*len = 26 + 2;


//	IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2);

	//Print each field in detail. Driver should not print out this message by default
//	HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()");
	return;

}
/********************************************************************************************************************
 *function:  Construct  Information Element in Beacon... if HTEnable is turned on
 *   input:  struct ieee80211_device* 	ieee
 *   	     u8* 			posHTCap //pointer to store Information Ele
 *   	     u8*			len   //store len of
 *   	     u8				IsEncrypt //whether encrypt, needed further
 *  output:  none
 *  return:  none
 *  notice:  posHTCap can't be null and be initialized before. only AP and IBSS sta should do this
  * *****************************************************************************************************************/
void HTConstructInfoElement(struct ieee80211_device* ieee, u8* posHTInfo, u8* len, u8 IsEncrypt)
{
	PRT_HIGH_THROUGHPUT	pHT = ieee->pHTInfo;
	PHT_INFORMATION_ELE		pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo;
	if ((posHTInfo == NULL) || (pHTInfoEle == NULL))
	{
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n");
		return;
	}

	memset(posHTInfo, 0, *len);
	if ( (ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) //ap mode is not currently supported
	{
		pHTInfoEle->ControlChl 			= ieee->current_network.channel;
		pHTInfoEle->ExtChlOffset 			= ((pHT->bRegBW40MHz == false)?HT_EXTCHNL_OFFSET_NO_EXT:
											(ieee->current_network.channel<=6)?
												HT_EXTCHNL_OFFSET_UPPER:HT_EXTCHNL_OFFSET_LOWER);
		pHTInfoEle->RecommemdedTxWidth	= pHT->bRegBW40MHz;
		pHTInfoEle->RIFS 					= 0;
		pHTInfoEle->PSMPAccessOnly		= 0;
		pHTInfoEle->SrvIntGranularity		= 0;
		pHTInfoEle->OptMode				= pHT->CurrentOpMode;
		pHTInfoEle->NonGFDevPresent		= 0;
		pHTInfoEle->DualBeacon			= 0;
		pHTInfoEle->SecondaryBeacon		= 0;
		pHTInfoEle->LSigTxopProtectFull		= 0;
		pHTInfoEle->PcoActive				= 0;
		pHTInfoEle->PcoPhase				= 0;

		memset(pHTInfoEle->BasicMSC, 0, 16);


		*len = 22 + 2; //same above

	}
	else
	{
		//STA should not generate High Throughput Information Element
		*len = 0;
	}
	//IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2);
	//HTDebugHTInfo(posHTInfo, "HTConstructInforElement");
	return;
}

/*
  *  According to experiment, Realtek AP to STA (based on rtl8190) may achieve best performance
  *  if both STA and AP set limitation of aggregation size to 32K, that is, set AMPDU density to 2
  *  (Ref: IEEE 11n specification). However, if Realtek STA associates to other AP, STA should set
  *  limitation of aggregation size to 8K, otherwise, performance of traffic stream from STA to AP
  *  will be much less than the traffic stream from AP to STA if both of the stream runs concurrently
  *  at the same time.
  *
  *  Frame Format
  *  Element ID		Length		OUI			Type1		Reserved
  *  1 byte			1 byte		3 bytes		1 byte		1 byte
  *
  *  OUI 		= 0x00, 0xe0, 0x4c,
  *  Type 	= 0x02
  *  Reserved 	= 0x00
  *
  *  2007.8.21 by Emily
*/
/********************************************************************************************************************
 *function:  Construct  Information Element in Beacon... in RT2RT condition
 *   input:  struct ieee80211_device* 	ieee
 *   	     u8* 			posRT2RTAgg //pointer to store Information Ele
 *   	     u8*			len   //store len
 *  output:  none
 *  return:  none
 *  notice:
  * *****************************************************************************************************************/
void HTConstructRT2RTAggElement(struct ieee80211_device* ieee, u8* posRT2RTAgg, u8* len)
{
	if (posRT2RTAgg == NULL) {
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n");
		return;
	}
	memset(posRT2RTAgg, 0, *len);
	*posRT2RTAgg++ = 0x00;
	*posRT2RTAgg++ = 0xe0;
	*posRT2RTAgg++ = 0x4c;
	*posRT2RTAgg++ = 0x02;
	*posRT2RTAgg++ = 0x01;
	*posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02;

	if(ieee->bSupportRemoteWakeUp) {
		*posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW;
	}

	*len = 6 + 2;
	return;
#ifdef TODO
#if (HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE)
	/*
	//Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this
	   section of code.
	if(IS_UNDER_11N_AES_MODE(Adapter))
	{
		posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU;
	}else
	{
		posRT2RTAgg->Octet[5] &= 0xfb;
	}
	*/

#else
	// Do Nothing
#endif

	posRT2RTAgg->Length = 6;
#endif


}


/********************************************************************************************************************
 *function:  Pick the right Rate Adaptive table to use
 *   input:  struct ieee80211_device* 	ieee
 *   	     u8* 			pOperateMCS //A pointer to MCS rate bitmap
 *  return:  always we return true
 *  notice:
  * *****************************************************************************************************************/
u8 HT_PickMCSRate(struct ieee80211_device* ieee, u8* pOperateMCS)
{
	u8					i;
	if (pOperateMCS == NULL)
	{
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n");
		return false;
	}

	switch(ieee->mode)
	{
	case IEEE_A:
	case IEEE_B:
	case IEEE_G:
			//legacy rate routine handled at selectedrate

			//no MCS rate
			for(i=0;i<=15;i++){
				pOperateMCS[i] = 0;
			}
			break;

	case IEEE_N_24G:	//assume CCK rate ok
	case IEEE_N_5G:
			// Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G.
			// Legacy part shall be handled at SelectRateSet().

			//HT part
			// TODO: may be different if we have different number of antenna
			pOperateMCS[0] &=RATE_ADPT_1SS_MASK;	//support MCS 0~7
			pOperateMCS[1] &=RATE_ADPT_2SS_MASK;
			pOperateMCS[3] &=RATE_ADPT_MCS32_MASK;
			break;

	//should never reach here
	default:

			break;

	}

	return true;
}

/*
*	Description:
*		This function will get the highest speed rate in input MCS set.
*
*	/param 	Adapter			Pionter to Adapter entity
*			pMCSRateSet		Pointer to MCS rate bitmap
*			pMCSFilter		Pointer to MCS rate filter
*
*	/return	Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter.
*
*/
/********************************************************************************************************************
 *function:  This function will get the highest speed rate in input MCS set.
 *   input:  struct ieee80211_device* 	ieee
 *   	     u8* 			pMCSRateSet //Pointer to MCS rate bitmap
 *   	     u8*			pMCSFilter //Pointer to MCS rate filter
 *  return:  Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter
 *  notice:
  * *****************************************************************************************************************/
u8 HTGetHighestMCSRate(struct ieee80211_device* ieee, u8* pMCSRateSet, u8* pMCSFilter)
{
	u8		i, j;
	u8		bitMap;
	u8		mcsRate = 0;
	u8		availableMcsRate[16];
	if (pMCSRateSet == NULL || pMCSFilter == NULL)
	{
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n");
		return false;
	}
	for(i=0; i<16; i++)
		availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];

	for(i = 0; i < 16; i++)
	{
		if(availableMcsRate[i] != 0)
			break;
	}
	if(i == 16)
		return false;

	for(i = 0; i < 16; i++)
	{
		if(availableMcsRate[i] != 0)
		{
			bitMap = availableMcsRate[i];
			for(j = 0; j < 8; j++)
			{
				if((bitMap%2) != 0)
				{
					if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate))
						mcsRate = (8*i+j);
				}
				bitMap = bitMap>>1;
			}
		}
	}
	return (mcsRate|0x80);
}


/*
**
**1.Filter our operation rate set with AP's rate set
**2.shall reference channel bandwidth, STBC, Antenna number
**3.generate rate adative table for firmware
**David 20060906
**
** \pHTSupportedCap: the connected STA's supported rate Capability element
*/
u8 HTFilterMCSRate( struct ieee80211_device* ieee, u8* pSupportMCS, u8* pOperateMCS)
{

	u8 i=0;

	// filter out operational rate set not supported by AP, the lenth of it is 16
	for(i=0;i<=15;i++){
		pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i];
	}


	// TODO: adjust our operational rate set  according to our channel bandwidth, STBC and Antenna number

	// TODO: fill suggested rate adaptive rate index and give firmware info using Tx command packet
	// we also shall suggested the first start rate set according to our singal strength
	HT_PickMCSRate(ieee, pOperateMCS);

	// For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7.
	if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
		pOperateMCS[1] = 0;

	//
	// For RTL819X, we support only MCS0~15.
	// And also, we do not know how to use MCS32 now.
	//
	for(i=2; i<=15; i++)
		pOperateMCS[i] = 0;

	return true;
}
void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH	Bandwidth, HT_EXTCHNL_OFFSET	Offset);
void HTOnAssocRsp(struct ieee80211_device *ieee)
{
	PRT_HIGH_THROUGHPUT	pHTInfo = ieee->pHTInfo;
	PHT_CAPABILITY_ELE		pPeerHTCap = NULL;
	PHT_INFORMATION_ELE		pPeerHTInfo = NULL;
	u16	nMaxAMSDUSize = 0;
	u8*	pMcsFilter = NULL;

	static u8				EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};		// For 11n EWC definition, 2007.07.17, by Emily
	static u8				EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};	// For 11n EWC definition, 2007.07.17, by Emily

	if( pHTInfo->bCurrentHTSupport == false )
	{
		IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n");
		return;
	}
	IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
//	IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE));
//	IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE));

//	HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq");
//	HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq");
	//
	if(!memcmp(pHTInfo->PeerHTCapBuf,EWC11NHTCap, sizeof(EWC11NHTCap)))
		pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]);
	else
		pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf);

	if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
		pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]);
	else
		pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf);


	////////////////////////////////////////////////////////
	// Configurations:
	////////////////////////////////////////////////////////
	IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE));
//	IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE));
	// Config Supported Channel Width setting
	//
	HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset));

//	if(pHTInfo->bCurBW40MHz == true)
		pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false);

	//
	// Update short GI/ long GI setting
	//
	// TODO:
	pHTInfo->bCurShortGI20MHz=
		((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false);
	pHTInfo->bCurShortGI40MHz=
		((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false);

	//
	// Config TX STBC setting
	//
	// TODO:

	//
	// Config DSSS/CCK  mode in 40MHz mode
	//
	// TODO:
	pHTInfo->bCurSuppCCK =
		((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false);


	//
	// Config and configure A-MSDU setting
	//
	pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;

	nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935;

	if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize )
		pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
	else
		pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;


	//
	// Config A-MPDU setting
	//
	pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;

	// <1> Decide AMPDU Factor

	// By Emily
	if(!pHTInfo->bRegRT2RTAggregation)
	{
		// Decide AMPDU Factor according to protocol handshake
		if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
			pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
		else
			pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;

	}else
	{
		// Set MPDU density to 2 to Realtek AP, and set it to 0 for others
		// Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily
		if (ieee->current_network.bssht.bdRT2RTAggregation)
		{
			if( ieee->pairwise_key_type != KEY_TYPE_NA)
				// Realtek may set 32k in security mode and 64k for others
				pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
			else
				pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
		}else
		{
			if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
				pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
			else
				pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
		}
	}

	// <2> Set AMPDU Minimum MPDU Start Spacing
	// 802.11n 3.0 section 9.7d.3
	if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
		pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
	else
		pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
	if(ieee->pairwise_key_type != KEY_TYPE_NA )
		pHTInfo->CurrentMPDUDensity 	= 7; // 8us
	// Force TX AMSDU

	// Lanhsin: mark for tmp to avoid deauth by ap from  s3
	//if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0)
	if(0)
		{

			pHTInfo->bCurrentAMPDUEnable = false;
			pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
			pHTInfo->ForcedAMSDUMaxSize = 7935;

		pHTInfo->IOTAction |=  HT_IOT_ACT_TX_USE_AMSDU_8K;
	}

	// Rx Reorder Setting
	pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;

	//
	// Filter out unsupported HT rate for this AP
	// Update RATR table
	// This is only for 8190 ,8192 or later product which using firmware to handle rate adaptive mechanism.
	//

	// Handle Ralink AP bad MCS rate set condition. Joseph.
	// This fix the bug of Ralink AP. This may be removed in the future.
	if(pPeerHTCap->MCS[0] == 0)
		pPeerHTCap->MCS[0] = 0xff;

	HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);

	//
	// Config MIMO Power Save setting
	//
	pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
	if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
		pMcsFilter = MCS_FILTER_1SS;
	else
		pMcsFilter = MCS_FILTER_ALL;
	//WB add for MCS8 bug
//	pMcsFilter = MCS_FILTER_1SS;
	ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter);
	ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;

	//
	// Config current operation mode.
	//
	pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;


}

void HTSetConnectBwModeCallback(struct ieee80211_device* ieee);
/********************************************************************************************************************
 *function:  initialize HT info(struct PRT_HIGH_THROUGHPUT)
 *   input:  struct ieee80211_device* 	ieee
 *  output:  none
 *  return:  none
 *  notice: This function is called when *  (1) MPInitialization Phase *  (2) Receiving of Deauthentication from AP
********************************************************************************************************************/
// TODO: Should this funciton be called when receiving of Disassociation?
void HTInitializeHTInfo(struct ieee80211_device* ieee)
{
	PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;

	//
	// These parameters will be reset when receiving deauthentication packet
	//
	IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __FUNCTION__);
	pHTInfo->bCurrentHTSupport = false;

	// 40MHz channel support
	pHTInfo->bCurBW40MHz = false;
	pHTInfo->bCurTxBW40MHz = false;

	// Short GI support
	pHTInfo->bCurShortGI20MHz = false;
	pHTInfo->bCurShortGI40MHz = false;
	pHTInfo->bForcedShortGI = false;

	// CCK rate support
	// This flag is set to true to support CCK rate by default.
	// It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities only when associate to
	// 11N BSS.
	pHTInfo->bCurSuppCCK = true;

	// AMSDU related
	pHTInfo->bCurrent_AMSDU_Support = false;
	pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;

	// AMPUD related
	pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
	pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;


	// Initialize all of the parameters related to 11n
	memset((void*)(&(pHTInfo->SelfHTCap)), 0, sizeof(pHTInfo->SelfHTCap));
	memset((void*)(&(pHTInfo->SelfHTInfo)), 0, sizeof(pHTInfo->SelfHTInfo));
	memset((void*)(&(pHTInfo->PeerHTCapBuf)), 0, sizeof(pHTInfo->PeerHTCapBuf));
	memset((void*)(&(pHTInfo->PeerHTInfoBuf)), 0, sizeof(pHTInfo->PeerHTInfoBuf));

	pHTInfo->bSwBwInProgress = false;
	pHTInfo->ChnlOp = CHNLOP_NONE;

	// Set default IEEE spec for Draft N
	pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;

	// Realtek proprietary aggregation mode
	pHTInfo->bCurrentRT2RTAggregation = false;
	pHTInfo->bCurrentRT2RTLongSlotTime = false;
	pHTInfo->IOTPeer = 0;
	pHTInfo->IOTAction = 0;

	//MCS rate initialized here
	{
		u8* RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
		RegHTSuppRateSets[0] = 0xFF;	//support MCS 0~7
		RegHTSuppRateSets[1] = 0xFF;	//support MCS 8~15
		RegHTSuppRateSets[4] = 0x01;	//support MCS 32
	}
}
/********************************************************************************************************************
 *function:  initialize Bss HT structure(struct PBSS_HT)
 *   input:  PBSS_HT pBssHT //to be initialized
 *  output:  none
 *  return:  none
 *  notice: This function is called when initialize network structure
********************************************************************************************************************/
void HTInitializeBssDesc(PBSS_HT pBssHT)
{

	pBssHT->bdSupportHT = false;
	memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
	pBssHT->bdHTCapLen = 0;
	memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
	pBssHT->bdHTInfoLen = 0;

	pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE;

	pBssHT->bdRT2RTAggregation = false;
	pBssHT->bdRT2RTLongSlotTime = false;
}
/********************************************************************************************************************
 *function:  initialize Bss HT structure(struct PBSS_HT)
 *   input:  struct ieee80211_device 	*ieee
 *   	     struct ieee80211_network 	*pNetwork //usually current network we are live in
 *  output:  none
 *  return:  none
 *  notice: This function should ONLY be called before association
********************************************************************************************************************/
void HTResetSelfAndSavePeerSetting(struct ieee80211_device* ieee, 	struct ieee80211_network * pNetwork)
{
	PRT_HIGH_THROUGHPUT		pHTInfo = ieee->pHTInfo;
//	u16						nMaxAMSDUSize;
//	PHT_CAPABILITY_ELE		pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
//	PHT_INFORMATION_ELE		pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
//	u8*	pMcsFilter;
	u8	bIOTAction = 0;

	//
	//  Save Peer Setting before Association
	//
	IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __FUNCTION__);
	/*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/
//	if( pHTInfo->bEnableHT &&  pNetwork->bssht.bdSupportHT)
	if (pNetwork->bssht.bdSupportHT)
	{
		pHTInfo->bCurrentHTSupport = true;
		pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;

		// Save HTCap and HTInfo information Element
		if(pNetwork->bssht.bdHTCapLen > 0 && 	pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
			memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen);

		if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf))
			memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen);

		// Check whether RT to RT aggregation mode is enabled
		if(pHTInfo->bRegRT2RTAggregation)
		{
			pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation;
			pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime;
		}
		else
		{
			pHTInfo->bCurrentRT2RTAggregation = false;
			pHTInfo->bCurrentRT2RTLongSlotTime = false;
		}

		// Determine the IOT Peer Vendor.
		HTIOTPeerDetermine(ieee);

		// Decide IOT Action
		// Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided
		pHTInfo->IOTAction = 0;
		bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
		if(bIOTAction)
			pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;

		bIOTAction = HTIOTActIsDisableMCS15(ieee);
		if(bIOTAction)
			pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;

		bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid);
		if(bIOTAction)
			pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;


		bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
		if(bIOTAction)
			pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;

		bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork);
		if(bIOTAction)
			pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;

		bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid);
		if(bIOTAction)
			pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;


	}
	else
	{
		pHTInfo->bCurrentHTSupport = false;
		pHTInfo->bCurrentRT2RTAggregation = false;
		pHTInfo->bCurrentRT2RTLongSlotTime = false;

		pHTInfo->IOTAction = 0;
	}

}

void HTUpdateSelfAndPeerSetting(struct ieee80211_device* ieee, 	struct ieee80211_network * pNetwork)
{
	PRT_HIGH_THROUGHPUT	pHTInfo = ieee->pHTInfo;
//	PHT_CAPABILITY_ELE		pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
	PHT_INFORMATION_ELE		pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;

	if(pHTInfo->bCurrentHTSupport)
	{
		//
		// Config current operation mode.
		//
		if(pNetwork->bssht.bdHTInfoLen != 0)
			pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;

		//
		// <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->MPDU_Density;

		// Set BWOpMode register

		//update RATR index0
		HTFilterMCSRate(ieee, ieee->Regdot11HTOperationalRateSet, ieee->dot11HTOperationalRateSet);
	//function below is not implemented at all. WB
#ifdef TODO
		Adapter->HalFunc.InitHalRATRTableHandler( Adapter, &pMgntInfo->dot11OperationalRateSet, pMgntInfo->dot11HTOperationalRateSet);
#endif
		ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, MCS_FILTER_ALL);
		ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;

	}
	else
	{
		pHTInfo->bCurrentHTSupport = false;
	}
	return;
}
/********************************************************************************************************************
 *function:  check whether HT control field exists
 *   input:  struct ieee80211_device 	*ieee
 *   	     u8*			pFrame //coming skb->data
 *  output:  none
 *  return:  return true if HT control field exists(false otherwise)
 *  notice:
********************************************************************************************************************/
u8 HTCCheck(struct ieee80211_device* ieee, u8*	pFrame)
{
	if(ieee->pHTInfo->bCurrentHTSupport)
	{
		if( (IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1)
		{
			IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n");
			return true;
		}
	}
	return false;
}

//
// This function set bandwidth mode in protocol layer.
//
void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH	Bandwidth, HT_EXTCHNL_OFFSET	Offset)
{
	PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
//	u32 flags = 0;

	if(pHTInfo->bRegBW40MHz == false)
		return;


	// To reduce dummy operation
//	if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) ||
//	   (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset))
//		return;

//	spin_lock_irqsave(&(ieee->bw_spinlock), flags);
	if(pHTInfo->bSwBwInProgress) {
//		spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
		return;
	}
	//if in half N mode, set to 20M bandwidth please 09.08.2008 WB.
	if(Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)))
	 {
			// Handle Illegal extension channel offset!!
		if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER)
			Offset = HT_EXTCHNL_OFFSET_NO_EXT;
		if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) {
			pHTInfo->bCurBW40MHz = true;
			pHTInfo->CurSTAExtChnlOffset = Offset;
		} else {
			pHTInfo->bCurBW40MHz = false;
			pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
		}
	} else {
		pHTInfo->bCurBW40MHz = false;
		pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
	}

	pHTInfo->bSwBwInProgress = true;

	// TODO: 2007.7.13 by Emily Wait 2000ms  in order to guarantee that switching
	//   bandwidth is executed after scan is finished. It is a temporal solution
	//   because software should ganrantee the last operation of switching bandwidth
	//   is executed properlly.
	HTSetConnectBwModeCallback(ieee);

//	spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
}

void HTSetConnectBwModeCallback(struct ieee80211_device* ieee)
{
	PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;

	IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __FUNCTION__);

	if(pHTInfo->bCurBW40MHz)
	{
		if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_UPPER)
			ieee->set_chan(ieee->dev, ieee->current_network.channel+2);
		else if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_LOWER)
			ieee->set_chan(ieee->dev, ieee->current_network.channel-2);
		else
			ieee->set_chan(ieee->dev, ieee->current_network.channel);

		ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset);
	} else {
		ieee->set_chan(ieee->dev, ieee->current_network.channel);
		ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
	}

	pHTInfo->bSwBwInProgress = false;
}

EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);