/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *                                        
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 *
 ******************************************************************************/
#define _RTL8192C_REDESC_C_
#include <drv_conf.h>
#include <osdep_service.h>
#include <drv_types.h>
#include <rtl8192c_hal.h>

static u8 evm_db2percentage(s8 value)
{
	//
	// -33dB~0dB to 0%~99%
	//
	s8 ret_val;

	ret_val = value;
	//ret_val /= 2;

	RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("EVMdbToPercentage92S Value=%d / %x \n", ret_val, ret_val));

	if(ret_val >= 0)
		ret_val = 0;
	if(ret_val <= -33)
		ret_val = -33;

	ret_val = 0 - ret_val;
	ret_val*=3;

	if(ret_val == 99)
		ret_val = 100;

	return(ret_val);
}


static s32 signal_scale_mapping(_adapter *padapter, s32 cur_sig )
{
	s32 ret_sig;

#ifdef CONFIG_USB_HCI
	if(cur_sig >= 51 && cur_sig <= 100)
	{
		ret_sig = 100;
	}
	else if(cur_sig >= 41 && cur_sig <= 50)
	{
		ret_sig = 80 + ((cur_sig - 40)*2);
	}
	else if(cur_sig >= 31 && cur_sig <= 40)
	{
		ret_sig = 66 + (cur_sig - 30);
	}
	else if(cur_sig >= 21 && cur_sig <= 30)
	{
		ret_sig = 54 + (cur_sig - 20);
	}
	else if(cur_sig >= 10 && cur_sig <= 20)
	{
		ret_sig = 42 + (((cur_sig - 10) * 2) / 3);
	}
	else if(cur_sig >= 5 && cur_sig <= 9)
	{
		ret_sig = 22 + (((cur_sig - 5) * 3) / 2);
	}
	else if(cur_sig >= 1 && cur_sig <= 4)
	{
		ret_sig = 6 + (((cur_sig - 1) * 3) / 2);
	}
	else
	{
		ret_sig = cur_sig;
	}
#else
	HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(padapter);

	if(pHalData->CustomerID == RT_CID_819x_Lenovo)
	{
		// Step 1. Scale mapping.
		// 20100611 Joseph: Re-tunning RSSI presentation for Lenovo.
		// 20100426 Joseph: Modify Signal strength mapping.
		// This modification makes the RSSI indication similar to Intel solution.
		// 20100414 Joseph: Tunning RSSI for Lenovo according to RTL8191SE.
		if(cur_sig >= 54 && cur_sig <= 100)
		{
			ret_sig = 100;
		}
		else if(cur_sig>=42 && cur_sig <= 53 )
		{
			ret_sig = 95;
		}
		else if(cur_sig>=36 && cur_sig <= 41 )
		{
			ret_sig = 74 + ((cur_sig - 36) *20)/6;
		}
		else if(cur_sig>=33 && cur_sig <= 35 )
		{
			ret_sig = 65 + ((cur_sig - 33) *8)/2;
		}
		else if(cur_sig>=18 && cur_sig <= 32 )
		{
			ret_sig = 62 + ((cur_sig - 18) *2)/15;
		}
		else if(cur_sig>=15 && cur_sig <= 17 )
		{
			ret_sig = 33 + ((cur_sig - 15) *28)/2;
		}
		else if(cur_sig>=10 && cur_sig <= 14 )
		{
			ret_sig = 39;
		}
		else if(cur_sig>=8 && cur_sig <= 9 )
		{
			ret_sig = 33;
		}
		else if(cur_sig <= 8 )
		{
			ret_sig = 19;
		}
	}
	else
	{
		// Step 1. Scale mapping.
		if(cur_sig >= 61 && cur_sig <= 100)
		{
			ret_sig = 90 + ((cur_sig - 60) / 4);
		}
		else if(cur_sig >= 41 && cur_sig <= 60)
		{
			ret_sig = 78 + ((cur_sig - 40) / 2);
		}
		else if(cur_sig >= 31 && cur_sig <= 40)
		{
			ret_sig = 66 + (cur_sig - 30);
		}
		else if(cur_sig >= 21 && cur_sig <= 30)
		{
			ret_sig = 54 + (cur_sig - 20);
		}
		else if(cur_sig >= 5 && cur_sig <= 20)
		{
			ret_sig = 42 + (((cur_sig - 5) * 2) / 3);
		}
		else if(cur_sig == 4)
		{
			ret_sig = 36;
		}
		else if(cur_sig == 3)
		{
			ret_sig = 27;
		}
		else if(cur_sig == 2)
		{
			ret_sig = 18;
		}
		else if(cur_sig == 1)
		{
			ret_sig = 9;
		}
		else
		{
			ret_sig = cur_sig;
		}
	}
#endif

	return ret_sig;
}


static s32  translate2dbm(u8 signal_strength_idx)
{
	s32	signal_power; // in dBm.


	// Translate to dBm (x=0.5y-95).
	signal_power = (s32)((signal_strength_idx + 1) >> 1);
	signal_power -= 95;

	return signal_power;
}

static void query_rx_phy_status(union recv_frame *prframe, struct phy_stat *pphy_stat)
{
	PHY_STS_OFDM_8192CD_T	*pOfdm_buf;
	PHY_STS_CCK_8192CD_T	*pCck_buf;
	u8	i, max_spatial_stream, evm;
	s8	rx_pwr[4], rx_pwr_all = 0;
	u8	pwdb_all;
	u32	rssi,total_rssi=0;
	u8 	bcck_rate=0, rf_rx_num = 0, cck_highpwr = 0;
	_adapter				*padapter = prframe->u.hdr.adapter;
	struct rx_pkt_attrib	*pattrib = &prframe->u.hdr.attrib;
	HAL_DATA_TYPE		*pHalData = GET_HAL_DATA(padapter);
	struct dm_priv		*pdmpriv = &pHalData->dmpriv;
	u8	tmp_rxsnr;
	s8	rx_snrX;

#ifdef CONFIG_HW_ANTENNA_DIVERSITY
	PHY_RX_DRIVER_INFO_8192CD *pDrvInfo = ((PHY_RX_DRIVER_INFO_8192CD *)pphy_stat);
	u8 	bant1_sel = (pDrvInfo->ANTSEL == 1)?_TRUE:_FALSE;	
#endif

	// Record it for next packet processing
	bcck_rate=(pattrib->mcs_rate<=3? 1:0);

	if(bcck_rate) //CCK
	{
		u8 report;
#ifdef CONFIG_HW_ANTENNA_DIVERSITY		
		if(bant1_sel == _TRUE)
			pHalData->CCK_Ant1_Cnt++;
		else
			pHalData->CCK_Ant2_Cnt++;
#endif		

		// CCK Driver info Structure is not the same as OFDM packet.
		pCck_buf = (PHY_STS_CCK_8192CD_T *)pphy_stat;
		//Adapter->RxStats.NumQryPhyStatusCCK++;

		//
		// (1)Hardware does not provide RSSI for CCK
		// (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive)
		//

		if(padapter->pwrctrlpriv.rf_pwrstate == rf_on)
			cck_highpwr = (u8)pHalData->bCckHighPower;
		else
			cck_highpwr = _FALSE;

		if(!cck_highpwr)
		{
			report = pCck_buf->cck_agc_rpt&0xc0;
			report = report>>6;
			switch(report)
			{
				// 03312009 modified by cosa
				// Modify the RF RNA gain value to -40, -20, -2, 14 by Jenyu's suggestion
				// Note: different RF with the different RNA gain.
				case 0x3:
					rx_pwr_all = (-46) - (pCck_buf->cck_agc_rpt & 0x3e);
					break;
				case 0x2:
					rx_pwr_all = (-26) - (pCck_buf->cck_agc_rpt & 0x3e);
					break;
				case 0x1:
					rx_pwr_all = (-12) - (pCck_buf->cck_agc_rpt & 0x3e);
					break;
				case 0x0:
					rx_pwr_all = (16) - (pCck_buf->cck_agc_rpt & 0x3e);
					break;
			}
		}
		else
		{
			report = pCck_buf->cck_agc_rpt & 0x60;
			report = report>>5;
			switch(report)
			{
				case 0x3:
					rx_pwr_all = (-46) - ((pCck_buf->cck_agc_rpt & 0x1f)<<1) ;
					break;
				case 0x2:
					rx_pwr_all = (-26)- ((pCck_buf->cck_agc_rpt & 0x1f)<<1);
					break;
				case 0x1:
					rx_pwr_all = (-12) - ((pCck_buf->cck_agc_rpt & 0x1f)<<1) ;
					break;
				case 0x0:
					rx_pwr_all = (16) - ((pCck_buf->cck_agc_rpt & 0x1f)<<1) ;
					break;
			}
		}

		pwdb_all= query_rx_pwr_percentage(rx_pwr_all);
		if(pHalData->CustomerID == RT_CID_819x_Lenovo)
		{
			// CCK gain is smaller than OFDM/MCS gain,
			// so we add gain diff by experiences, the val is 6
			pwdb_all+=6;
			if(pwdb_all > 100)
				pwdb_all = 100;
			// modify the offset to make the same gain index with OFDM.
			if(pwdb_all > 34 && pwdb_all <= 42)
				pwdb_all -= 2;
			else if(pwdb_all > 26 && pwdb_all <= 34)
				pwdb_all -= 6;
			else if(pwdb_all > 14 && pwdb_all <= 26)
				pwdb_all -= 8;
			else if(pwdb_all > 4 && pwdb_all <= 14)
				pwdb_all -= 4;
		}

		pattrib->RxPWDBAll = pwdb_all;	//for DIG/rate adaptive
		pattrib->RecvSignalPower = rx_pwr_all;	//dBM
		padapter->recvpriv.rxpwdb = rx_pwr_all;
		//
		// (3) Get Signal Quality (EVM)
		//
		//if(bPacketMatchBSSID)
		{
			u8	sq;

			if(pHalData->CustomerID == RT_CID_819x_Lenovo)
			{
				// mapping to 5 bars for vista signal strength
				// signal quality in driver will be displayed to signal strength
				// in vista.
				if(pwdb_all >= 50)
					sq = 100;
				else if(pwdb_all >= 35 && pwdb_all < 50)
					sq = 80;
				else if(pwdb_all >= 22 && pwdb_all < 35)
					sq = 60;
				else if(pwdb_all >= 18 && pwdb_all < 22)
					sq = 40;
				else
					sq = 20;
			}
			else
			{
				if(pwdb_all> 40)
				{
					sq = 100;
				}
				else
				{
					sq = pCck_buf->SQ_rpt;

					if(pCck_buf->SQ_rpt > 64)
						sq = 0;
					else if (pCck_buf->SQ_rpt < 20)
						sq= 100;
					else
						sq = ((64-sq) * 100) / 44;

				}
			}

			pattrib->signal_qual=sq;
			pattrib->rx_mimo_signal_qual[0]=sq;
			pattrib->rx_mimo_signal_qual[1]=(-1);
		}

	}
	else //OFDM/HT
	{
#ifdef CONFIG_HW_ANTENNA_DIVERSITY	
		if(bant1_sel == _TRUE)
			pHalData->OFDM_Ant1_Cnt++;
		else
			pHalData->OFDM_Ant2_Cnt++;
#endif
		pdmpriv->OFDM_Pkt_Cnt++;

		pOfdm_buf = (PHY_STS_OFDM_8192CD_T *)pphy_stat;
	
		//
		// (1)Get RSSI per-path
		//
		for(i=0; i<pHalData->NumTotalRFPath; i++)
		{
			// 2008/01/30 MH we will judge RF RX path now.
			if (pHalData->bRFPathRxEnable[i])
				rf_rx_num++;
			//else
				//continue;

			rx_pwr[i] =  ((pOfdm_buf->trsw_gain_X[i]&0x3F)*2) - 110;
			padapter->recvpriv.RxRssi[i] = rx_pwr[i];
			/* Translate DBM to percentage. */
			pattrib->rx_rssi[i] = rssi = query_rx_pwr_percentage(rx_pwr[i]);
			total_rssi += rssi;

			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("RF-%d RXPWR=%x RSSI=%d\n", i, rx_pwr[i], rssi));

			//Get Rx snr value in DB
			tmp_rxsnr =	pOfdm_buf->rxsnr_X[i];
			rx_snrX = (s8)(tmp_rxsnr);
			rx_snrX >>= 1;
			padapter->recvpriv.RxSNRdB[i] =  (int)rx_snrX;
			pattrib->rx_snr[i]=pOfdm_buf->rxsnr_X[i];
			/* Record Signal Strength for next packet */
			//if(bPacketMatchBSSID)
			{
				//pRfd->Status.RxMIMOSignalStrength[i] =(u1Byte) RSSI;

				//The following is for lenovo signal strength in vista
				if(pHalData->CustomerID == RT_CID_819x_Lenovo)
				{
					u8	sq;

					if(i == 0)
					{
						// mapping to 5 bars for vista signal strength
						// signal quality in driver will be displayed to signal strength
						// in vista.
						if(rssi >= 50)
							sq = 100;
						else if(rssi >= 35 && rssi < 50)
							sq = 80;
						else if(rssi >= 22 && rssi < 35)
							sq = 60;
						else if(rssi >= 18 && rssi < 22)
							sq = 40;
						else
							sq = 20;
						//DbgPrint("ofdm/mcs RSSI=%d\n", RSSI);
						//pRfd->Status.SignalQuality = SQ;
						//DbgPrint("ofdm/mcs SQ = %d\n", pRfd->Status.SignalQuality);
					}
				}
			}
		}


		//
		// (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive),average
		//
		rx_pwr_all = (((pOfdm_buf->pwdb_all ) >> 1 )& 0x7f) -110;//for OFDM Average RSSI
		pwdb_all = query_rx_pwr_percentage(rx_pwr_all);

		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("PWDB_ALL=%d\n",	pwdb_all));

		pattrib->RxPWDBAll = pwdb_all;	//for DIG/rate adaptive
		pattrib->RecvSignalPower = rx_pwr_all;//dBM
		padapter->recvpriv.rxpwdb = rx_pwr_all;
		//
		// (3)EVM of HT rate
		//
		if(pHalData->CustomerID != RT_CID_819x_Lenovo)
		{
			if(pattrib->rxht &&  pattrib->mcs_rate >=20 && pattrib->mcs_rate<=27)
				max_spatial_stream = 2; //both spatial stream make sense
			else
				max_spatial_stream = 1; //only spatial stream 1 makes sense

			for(i=0; i<max_spatial_stream; i++)
			{
				// Do not use shift operation like "rx_evmX >>= 1" because the compilor of free build environment
				// fill most significant bit to "zero" when doing shifting operation which may change a negative
				// value to positive one, then the dbm value (which is supposed to be negative)  is not correct anymore.
				evm = evm_db2percentage( (pOfdm_buf->rxevm_X[i]/*/ 2*/));//dbm

				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("RXRATE=%x RXEVM=%x EVM=%s%d\n",
					pattrib->mcs_rate, pOfdm_buf->rxevm_X[i], "%",evm));

				//if(bPacketMatchBSSID)
				{
					if(i==0) // Fill value in RFD, Get the first spatial stream only
					{
						pattrib->signal_qual = (u8)(evm & 0xff);
					}
					pattrib->rx_mimo_signal_qual[i] = (u8)(evm & 0xff);
				}
			}

		}

		//
		// 4. Record rx statistics for debug
		//

	}


	//UI BSS List signal strength(in percentage), make it good looking, from 0~100.
	//It is assigned to the BSS List in GetValueFromBeaconOrProbeRsp().
	if(bcck_rate)
	{
		pattrib->signal_strength=(u8)signal_scale_mapping(padapter, pwdb_all);
	}
	else
	{
		if (rf_rx_num != 0)
		{
			pattrib->signal_strength= (u8)(signal_scale_mapping(padapter, total_rssi/=rf_rx_num));
		}
	}
	//DBG_8192C("%s,rx_pwr_all(%d),RxPWDBAll(%d)\n",__FUNCTION__,rx_pwr_all,pattrib->RxPWDBAll);

}


static void process_rssi(_adapter *padapter,union recv_frame *prframe)
{
	u32	last_rssi, tmp_val;
	struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
	struct signal_stat * signal_stat = &padapter->recvpriv.signal_strength_data;
#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS

	//DBG_8192C("process_rssi=> pattrib->rssil(%d) signal_strength(%d)\n ",pattrib->RecvSignalPower,pattrib->signal_strength);
	//if(pRfd->Status.bPacketToSelf || pRfd->Status.bPacketBeacon)
	{
	
	#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
		if(signal_stat->update_req) {
			signal_stat->total_num = 0;
			signal_stat->total_val = 0;
			signal_stat->update_req = 0;
		}

		signal_stat->total_num++;
		signal_stat->total_val  += pattrib->signal_strength;
		signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;		
	#else //CONFIG_NEW_SIGNAL_STAT_PROCESS
	
		//Adapter->RxStats.RssiCalculateCnt++;	//For antenna Test
		if(padapter->recvpriv.signal_strength_data.total_num++ >= PHY_RSSI_SLID_WIN_MAX)
		{
			padapter->recvpriv.signal_strength_data.total_num = PHY_RSSI_SLID_WIN_MAX;
			last_rssi = padapter->recvpriv.signal_strength_data.elements[padapter->recvpriv.signal_strength_data.index];
			padapter->recvpriv.signal_strength_data.total_val -= last_rssi;
		}
		padapter->recvpriv.signal_strength_data.total_val  +=pattrib->signal_strength;

		padapter->recvpriv.signal_strength_data.elements[padapter->recvpriv.signal_strength_data.index++] = pattrib->signal_strength;
		if(padapter->recvpriv.signal_strength_data.index >= PHY_RSSI_SLID_WIN_MAX)
			padapter->recvpriv.signal_strength_data.index = 0;


		tmp_val = padapter->recvpriv.signal_strength_data.total_val/padapter->recvpriv.signal_strength_data.total_num;
		
		if(padapter->recvpriv.is_signal_dbg) {
			padapter->recvpriv.signal_strength= padapter->recvpriv.signal_strength_dbg;
			padapter->recvpriv.rssi=(s8)translate2dbm((u8)padapter->recvpriv.signal_strength_dbg);
		} else {
			padapter->recvpriv.signal_strength= tmp_val;
			padapter->recvpriv.rssi=(s8)translate2dbm((u8)tmp_val);
		}

		RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("UI RSSI = %d, ui_rssi.TotalVal = %d, ui_rssi.TotalNum = %d\n", tmp_val, padapter->recvpriv.signal_strength_data.total_val,padapter->recvpriv.signal_strength_data.total_num));
	#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS
	}

}// Process_UI_RSSI_8192C


static void process_PWDB(_adapter *padapter, union recv_frame *prframe)
{
	int	UndecoratedSmoothedPWDB;
	int	UndecoratedSmoothedCCK;
	HAL_DATA_TYPE		*pHalData = GET_HAL_DATA(padapter);
	struct dm_priv		*pdmpriv = &pHalData->dmpriv;
	struct rx_pkt_attrib	*pattrib= &prframe->u.hdr.attrib;
	struct sta_info		*psta = prframe->u.hdr.psta;
	u8 isCCKrate=(pattrib->mcs_rate<=3? 1:0);


	if(psta)
	{
		UndecoratedSmoothedPWDB = psta->rssi_stat.UndecoratedSmoothedPWDB;
		UndecoratedSmoothedCCK = psta->rssi_stat.UndecoratedSmoothedCCK;
	}
	else
	{
		UndecoratedSmoothedPWDB = pdmpriv->UndecoratedSmoothedPWDB;
		UndecoratedSmoothedCCK = pdmpriv->UndecoratedSmoothedCCK;
	}

	//if(pRfd->Status.bPacketToSelf || pRfd->Status.bPacketBeacon)

	if(!isCCKrate)
	{
		// Process OFDM RSSI
		if(UndecoratedSmoothedPWDB < 0) // initialize
		{
			UndecoratedSmoothedPWDB = pattrib->RxPWDBAll;
		}

		if(pattrib->RxPWDBAll > (u32)UndecoratedSmoothedPWDB)
		{
			UndecoratedSmoothedPWDB =
					( ((UndecoratedSmoothedPWDB)*(Rx_Smooth_Factor-1)) +
					(pattrib->RxPWDBAll)) /(Rx_Smooth_Factor);

			UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB + 1;
		}
		else
		{
			UndecoratedSmoothedPWDB =
					( ((UndecoratedSmoothedPWDB)*(Rx_Smooth_Factor-1)) +
					(pattrib->RxPWDBAll)) /(Rx_Smooth_Factor);
		}
	}
	else
	{
		// Process CCK RSSI
		if(UndecoratedSmoothedCCK < 0) // initialize
		{
			UndecoratedSmoothedCCK = pattrib->RxPWDBAll;
		}

		if(pattrib->RxPWDBAll > (u32)UndecoratedSmoothedCCK)
		{
			UndecoratedSmoothedCCK =
					( ((UndecoratedSmoothedCCK)*(Rx_Smooth_Factor-1)) +
					(pattrib->RxPWDBAll)) /(Rx_Smooth_Factor);

			UndecoratedSmoothedCCK = UndecoratedSmoothedCCK + 1;
		}
		else
		{
			UndecoratedSmoothedCCK =
					( ((UndecoratedSmoothedCCK)*(Rx_Smooth_Factor-1)) +
					(pattrib->RxPWDBAll)) /(Rx_Smooth_Factor);
		}
	}
	
	
	if(psta)
	{
		//psta->UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;//todo:
		pdmpriv->UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;

		if(pdmpriv->RSSI_Select == RSSI_OFDM){
			psta->rssi_stat.UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;
		}
		else if(pdmpriv->RSSI_Select == RSSI_CCK){
			psta->rssi_stat.UndecoratedSmoothedPWDB = UndecoratedSmoothedCCK;
		}
		else{
			if(UndecoratedSmoothedPWDB <0 ) 
				pdmpriv->UndecoratedSmoothedPWDB = UndecoratedSmoothedCCK;
			else
				pdmpriv->UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;
		}
		psta->rssi_stat.UndecoratedSmoothedCCK = UndecoratedSmoothedCCK;
	}
	else
	{
		//pdmpriv->UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;

		if(pdmpriv->RSSI_Select == RSSI_OFDM){
			pdmpriv->UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;
		}
		else if(pdmpriv->RSSI_Select == RSSI_CCK){
			pdmpriv->UndecoratedSmoothedPWDB = UndecoratedSmoothedCCK;
		}
		else	{
			if(UndecoratedSmoothedPWDB <0 ) 
				pdmpriv->UndecoratedSmoothedPWDB = UndecoratedSmoothedCCK;
			else
				pdmpriv->UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;
			
		}
		pdmpriv->UndecoratedSmoothedCCK = UndecoratedSmoothedCCK;
	}

	//UpdateRxSignalStatistics8192C(padapter, prframe);

}


static void process_link_qual(_adapter *padapter,union recv_frame *prframe)
{
	u32	last_evm=0, tmpVal;
 	struct rx_pkt_attrib *pattrib;
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
	struct signal_stat * signal_stat;
#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS

	if(prframe == NULL || padapter==NULL){
		return;
	}

	pattrib = &prframe->u.hdr.attrib;
#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
	signal_stat = &padapter->recvpriv.signal_qual_data;
#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS

	//DBG_8192C("process_link_qual=> pattrib->signal_qual(%d)\n ",pattrib->signal_qual);

#ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS
	if(signal_stat->update_req) {
		signal_stat->total_num = 0;
		signal_stat->total_val = 0;
		signal_stat->update_req = 0;
	}

	signal_stat->total_num++;
	signal_stat->total_val  += pattrib->signal_qual;
	signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
	
#else //CONFIG_NEW_SIGNAL_STAT_PROCESS
	if(pattrib->signal_qual != 0)
	{
			//
			// 1. Record the general EVM to the sliding window.
			//
			if(padapter->recvpriv.signal_qual_data.total_num++ >= PHY_LINKQUALITY_SLID_WIN_MAX)
			{
				padapter->recvpriv.signal_qual_data.total_num = PHY_LINKQUALITY_SLID_WIN_MAX;
				last_evm = padapter->recvpriv.signal_qual_data.elements[padapter->recvpriv.signal_qual_data.index];
				padapter->recvpriv.signal_qual_data.total_val -= last_evm;
			}
			padapter->recvpriv.signal_qual_data.total_val += pattrib->signal_qual;

			padapter->recvpriv.signal_qual_data.elements[padapter->recvpriv.signal_qual_data.index++] = pattrib->signal_qual;
			if(padapter->recvpriv.signal_qual_data.index >= PHY_LINKQUALITY_SLID_WIN_MAX)
				padapter->recvpriv.signal_qual_data.index = 0;

			RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("Total SQ=%d  pattrib->signal_qual= %d\n", padapter->recvpriv.signal_qual_data.total_val, pattrib->signal_qual));

			// <1> Showed on UI for user, in percentage.
			tmpVal = padapter->recvpriv.signal_qual_data.total_val/padapter->recvpriv.signal_qual_data.total_num;
			padapter->recvpriv.signal_qual=(u8)tmpVal;

	}
	else
	{
		RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" pattrib->signal_qual =%d\n", pattrib->signal_qual));
	}
#endif //CONFIG_NEW_SIGNAL_STAT_PROCESS

}// Process_UiLinkQuality8192S


static void process_phy_info(_adapter *padapter, union recv_frame *prframe)
{
	union recv_frame *precvframe = (union recv_frame *)prframe;

#ifdef CONFIG_SW_ANTENNA_DIVERSITY
	// If we switch to the antenna for testing, the signal strength 
	// of the packets in this time shall not be counted into total receiving power. 
	// This prevents error counting Rx signal strength and affecting other dynamic mechanism.

	// Select the packets to do RSSI checking for antenna switching.
	SwAntDivRSSICheck8192C(padapter, precvframe->u.hdr.attrib.RxPWDBAll);

	if(GET_HAL_DATA(padapter)->RSSI_test == _TRUE)
		return;
#endif
	//
	// Check RSSI
	//
	process_rssi(padapter, precvframe);
	//
	// Check PWDB.
	//
	process_PWDB(padapter, precvframe); 
	//
	// Check EVM
	//
	process_link_qual(padapter,  precvframe);

}


void rtl8192c_translate_rx_signal_stuff(union recv_frame *precvframe, struct phy_stat *pphy_info)
{
	struct rx_pkt_attrib	*pattrib = &precvframe->u.hdr.attrib;
	_adapter				*padapter = precvframe->u.hdr.adapter;
	u8	bPacketMatchBSSID =_FALSE;
	u8	bPacketToSelf = _FALSE;
	u8	bPacketBeacon = _FALSE;

	if((pattrib->physt) && (pphy_info != NULL))
	{
		bPacketMatchBSSID = ((!IsFrameTypeCtrl(precvframe->u.hdr.rx_data)) && !(pattrib->icv_err) && !(pattrib->crc_err) &&
			_rtw_memcmp(get_hdr_bssid(precvframe->u.hdr.rx_data), get_my_bssid(&padapter->mlmeextpriv.mlmext_info.network), ETH_ALEN));
			

		bPacketToSelf = bPacketMatchBSSID &&  (_rtw_memcmp(get_da(precvframe->u.hdr.rx_data), myid(&padapter->eeprompriv), ETH_ALEN));

		bPacketBeacon =bPacketMatchBSSID && (GetFrameSubType(precvframe->u.hdr.rx_data) ==  WIFI_BEACON);

		query_rx_phy_status(precvframe, pphy_info);

		precvframe->u.hdr.psta = NULL;
		if(bPacketMatchBSSID && check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) == _TRUE)
		{
			u8 *sa;
			struct sta_info *psta=NULL;
			struct sta_priv *pstapriv = &padapter->stapriv;
			
			sa = get_sa(precvframe->u.hdr.rx_data);

			psta = rtw_get_stainfo(pstapriv, sa);
			if(psta)
			{
				precvframe->u.hdr.psta = psta;
				process_phy_info(padapter, precvframe);
			}
		}
		else if(bPacketToSelf || bPacketBeacon)
		{
			if(check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE) == _TRUE)
			{
				u8 *sa;
				struct sta_info *psta=NULL;
				struct sta_priv *pstapriv = &padapter->stapriv;
			
				sa = get_sa(precvframe->u.hdr.rx_data);

				psta = rtw_get_stainfo(pstapriv, sa);
				if(psta)
				{
					precvframe->u.hdr.psta = psta;
				}				
			}
					
			process_phy_info(padapter, precvframe);
		}
	}
}

void rtl8192c_query_rx_desc_status(union recv_frame *precvframe, struct recv_stat *pdesc)
{
	struct rx_pkt_attrib	*pattrib = &precvframe->u.hdr.attrib;

	//Offset 0
	pattrib->physt = (u8)((le32_to_cpu(pdesc->rxdw0) >> 26) & 0x1);
	pattrib->pkt_len =  (u16)(le32_to_cpu(pdesc->rxdw0)&0x00003fff);
	pattrib->drvinfo_sz = (u8)((le32_to_cpu(pdesc->rxdw0) >> 16) & 0xf) * 8;//uint 2^3 = 8 bytes

	pattrib->shift_sz = (u8)((le32_to_cpu(pdesc->rxdw0) >> 24) & 0x3);

	pattrib->crc_err = (u8)((le32_to_cpu(pdesc->rxdw0) >> 14) & 0x1);
	pattrib->icv_err = (u8)((le32_to_cpu(pdesc->rxdw0) >> 15) & 0x1);
	pattrib->qos = (u8)(( le32_to_cpu( pdesc->rxdw0 ) >> 23) & 0x1);// Qos data, wireless lan header length is 26
	pattrib->bdecrypted = (le32_to_cpu(pdesc->rxdw0) & BIT(27))? 0:1;

	//Offset 4
	pattrib->mfrag = (u8)((le32_to_cpu(pdesc->rxdw1) >> 27) & 0x1);//more fragment bit

	//Offset 8
	pattrib->frag_num = (u8)((le32_to_cpu(pdesc->rxdw2) >> 12) & 0xf);//fragmentation number

	//Offset 12
#ifdef CONFIG_TCP_CSUM_OFFLOAD_RX
	if ( le32_to_cpu(pdesc->rxdw3) & BIT(13)){
		pattrib->tcpchk_valid = 1; // valid
		if ( le32_to_cpu(pdesc->rxdw3) & BIT(11) ) {
			pattrib->tcp_chkrpt = 1; // correct
			//DBG_8192C("tcp csum ok\n");
		}
		else
			pattrib->tcp_chkrpt = 0; // incorrect

		if ( le32_to_cpu(pdesc->rxdw3) & BIT(12) )
			pattrib->ip_chkrpt = 1; // correct
		else
			pattrib->ip_chkrpt = 0; // incorrect
	}
	else {
		pattrib->tcpchk_valid = 0; // invalid
	}
#endif

	pattrib->mcs_rate=(u8)((le32_to_cpu(pdesc->rxdw3))&0x3f);
	pattrib->rxht=(u8)((le32_to_cpu(pdesc->rxdw3) >>6)&0x1);
	pattrib->sgi=(u8)((le32_to_cpu(pdesc->rxdw3) >>8)&0x1);
	//Offset 16
	//Offset 20

}