/*
 *************************************************************************
 * Ralink Tech Inc.
 * 5F., No.36, Taiyuan St., Jhubei City,
 * Hsinchu County 302,
 * Taiwan, R.O.C.
 *
 * (c) Copyright 2002-2010, Ralink Technology, Inc.
 *
 * This program is free software; you can redistribute it and/or modify  *
 * it under the terms of the GNU General Public License as published by  *
 * the Free Software Foundation; either version 2 of the License, or     *
 * (at your option) any later version.                                   *
 *                                                                       *
 * 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.,                                       *
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 *                                                                       *
 *************************************************************************/


#include "rt_config.h"


//#ifdef RTMP_MAC
#if defined(RTMP_MAC) || defined(MT7601)

/* BBP register initialization set*/
REG_PAIR   BBPRegTable[] = {
	{BBP_R65,		0x2C},		/* fix rssi issue*/
	{BBP_R66,		0x38},	/* Also set this default value to pAd->BbpTuning.R66CurrentValue at initial*/
	{BBP_R68,		0x0B},  /* improve Rx sensitivity. */
	{BBP_R69,		0x12},
	{BBP_R70,		0xa},	/* BBP_R70 will change to 0x8 in ApStartUp and LinkUp for rt2860C, otherwise value is 0xa*/
	{BBP_R73,		0x10},
	{BBP_R81,		0x37},
	{BBP_R82,		0x62},
	{BBP_R83,		0x6A},
	{BBP_R84,		0x99},	/* 0x19 is for rt2860E and after. This is for extension channel overlapping IOT. 0x99 is for rt2860D and before*/
	{BBP_R86,		0x00},	/* middle range issue, Rory @2008-01-28 	*/
	{BBP_R91,		0x04},	/* middle range issue, Rory @2008-01-28*/
	{BBP_R92,		0x00},	/* middle range issue, Rory @2008-01-28*/
	{BBP_R103,		0x00}, 	/* near range high-power issue, requested from Gary @2008-0528*/
	{BBP_R105,		0x05},	/* 0x05 is for rt2860E to turn on FEQ control. It is safe for rt2860D and before, because Bit 7:2 are reserved in rt2860D and before.*/
#ifdef DOT11_N_SUPPORT
	{BBP_R106,		0x35},	/* Optimizing the Short GI sampling request from Gray @2009-0409*/
#endif /* DOT11_N_SUPPORT */
};
#define	NUM_BBP_REG_PARMS	(sizeof(BBPRegTable) / sizeof(REG_PAIR))


NDIS_STATUS NICInitBBP(RTMP_ADAPTER *pAd)
{
	INT Index = 0;
	UCHAR R0 = 0xff;
	
	/* Read BBP register, make sure BBP is up and running before write new data*/
	if (rtmp_bbp_is_ready(pAd)== FALSE)
		return NDIS_STATUS_FAILURE;

	Index = 0;

	/* Initialize BBP register to default value*/
	for (Index = 0; Index < NUM_BBP_REG_PARMS; Index++)
	{

#ifdef MICROWAVE_OVEN_SUPPORT
#ifdef MT7601
		if (	BBPRegTable[Index].Register == BBP_R65)
		{
			/* Backup BBP_R65 and B5.R6 and B5.R7 */	
			pAd->CommonCfg.MO_Cfg.Stored_BBP_R65 = BBPRegTable[Index].Value;
			DBGPRINT(RT_DEBUG_TRACE, ("Stored_BBP_R65=%x @%s \n", pAd->CommonCfg.MO_Cfg.Stored_BBP_R65, __FUNCTION__));
		}
#endif /* MT7601 */
#endif /* MICROWAVE_OVEN_SUPPORT */

		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd,
				BBPRegTable[Index].Register,
				BBPRegTable[Index].Value);
	}

	/* re-config specific BBP registers for individual chip */
	if (pAd->chipCap.pBBPRegTable)
	{
		REG_PAIR *pbbpRegTb = pAd->chipCap.pBBPRegTable;
		
		for (Index = 0; Index < pAd->chipCap.bbpRegTbSize; Index++)
		{
			RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd,
					pbbpRegTb[Index].Register,
					pbbpRegTb[Index].Value);
			DBGPRINT(RT_DEBUG_TRACE, ("BBP_R%d=0x%x\n", 
					pbbpRegTb[Index].Register, 
					pbbpRegTb[Index].Value));
		}
	}

	if (pAd->chipOps.AsicBbpInit != NULL)
		pAd->chipOps.AsicBbpInit(pAd);

	/*
		For rt2860E and after, init BBP_R84 with 0x19. This is for extension channel overlapping IOT.
		RT3090 should not program BBP R84 to 0x19, otherwise TX will block.
		3070/71/72,3090,3090A( are included in RT30xx),3572,3390
	*/
	if (((pAd->MACVersion & 0xffff) != 0x0101) &&
		!(IS_RT30xx(pAd)|| IS_RT3572(pAd) || IS_RT5390(pAd) || IS_RT5392(pAd) || IS_RT3290(pAd) || IS_MT7601(pAd)))
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R84, 0x19);


	if (pAd->MACVersion == 0x28600100)
	{
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R69, 0x16);
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R73, 0x12);
	}

	return NDIS_STATUS_SUCCESS;
	
}


INT rtmp_bbp_set_txdac(struct _RTMP_ADAPTER *pAd, INT tx_dac)
{
	UCHAR val, old_val = 0;

	
	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R1, &old_val);
	val = old_val & (~0x18);
	switch (tx_dac)
	{
		case 2:
			val |= 0x10;
			break;
		case 1:
			val |= 0x08;
			break;
		case 0:
		default:
			break;
	}

	if (val != old_val) {
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R1, val);
	}

	return TRUE;
}


INT rtmp_bbp_set_rxpath(struct _RTMP_ADAPTER *pAd, INT rxpath)
{
	UCHAR val = 0;

	
	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R3, &val);
	val &= (~0x18);
	if(rxpath == 3)
		val |= (0x10);
	else if(rxpath == 2)
		val |= (0x8);
	else if(rxpath == 1)
		val |= (0x0);
	RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R3, val);

#ifdef CONFIG_STA_SUPPORT
#endif /* CONFIG_STA_SUPPORT */
	return TRUE;
}


INT rtmp_bbp_set_ctrlch(struct _RTMP_ADAPTER *pAd, INT ext_ch)
{
	UCHAR val, old_val = 0;

	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R3, &old_val);
	val = old_val;
	switch (ext_ch)
	{
		case EXTCHA_BELOW:
			val |= (0x20);
			break;
		case EXTCHA_ABOVE:
		case EXTCHA_NONE:
			val &= (~0x20);
			break;
	}

	if (val != old_val)
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R3, val);

#ifdef CONFIG_STA_SUPPORT
#endif /* CONFIG_STA_SUPPORT */

	return TRUE;
}


INT rtmp_bbp_set_bw(struct _RTMP_ADAPTER *pAd, INT bw)
{
	UCHAR val, old_val = 0;
	BOOLEAN bstop = FALSE;
	UINT32 Data, MTxCycle, macStatus;


	if (bw != pAd->CommonCfg.BBPCurrentBW)
		bstop = TRUE;

	if (bstop)
	{
		/* Disable MAC Tx/Rx */
		RTMP_IO_READ32(pAd, MAC_SYS_CTRL, &Data);
		Data &= (~0x0C);
		RTMP_IO_WRITE32(pAd, MAC_SYS_CTRL, Data);

		/* Check MAC Tx/Rx idle */
		for (MTxCycle = 0; MTxCycle < 10000; MTxCycle++)
		{
			RTMP_IO_READ32(pAd, MAC_STATUS_CFG, &macStatus);
			if (macStatus & 0x3)
				RTMPusecDelay(50);
			else
				break;
		}
	}

	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &old_val);
	val = (old_val & (~0x18));
	switch (bw)
	{
		case BW_20:
			val &= (~0x18);
			break;
		case BW_40:
			val |= (0x10);
			break;
		case BW_10:
			val |= 0x08;
			break;	
	}

	if (val != old_val) {
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, val);
	}

	if (bstop)
	{
		/* Enable MAC Tx/Rx */
		RTMP_IO_READ32(pAd, MAC_SYS_CTRL, &Data);
		Data |= 0x0C;
		RTMP_IO_WRITE32(pAd, MAC_SYS_CTRL, Data);
	}

	pAd->CommonCfg.BBPCurrentBW = bw;
	
	return TRUE;
}


INT rtmp_bbp_set_mmps(struct _RTMP_ADAPTER *pAd, BOOLEAN ReduceCorePower)
{
	UCHAR bbp_val, org_val;
	
	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R3, &org_val);
	bbp_val = org_val;
	if (ReduceCorePower)
		bbp_val |= 0x04;
	else
		bbp_val &= ~0x04;

	if (bbp_val != org_val)
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R3, bbp_val);

	return TRUE;
}


NDIS_STATUS AsicBBPWriteWithRxChain(
	IN RTMP_ADAPTER *pAd,
	IN UCHAR bbpId,
	IN CHAR bbpVal,
	IN RX_CHAIN_IDX rx_ch_idx)
{
	UCHAR idx = 0, val = 0;

	if (((pAd->MACVersion & 0xf0000000) < 0x28830000) || 
		(pAd->Antenna.field.RxPath == 1))
	{
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, bbpId, bbpVal);
		return NDIS_STATUS_SUCCESS;
	}
	
	while (rx_ch_idx != 0)
	{
		if (idx >= pAd->Antenna.field.RxPath)
			break;
		
		if (rx_ch_idx & 0x01)
		{
			RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R27, &val);
			val = (val & (~0x60)) | (idx << 5);
#ifdef RTMP_MAC_USB
			if ((IS_USB_INF(pAd)) &&
			    (RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R27, val) == STATUS_SUCCESS))
			{
				RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, bbpId, bbpVal);
			}
#endif /* RTMP_MAC_USB */


			DBGPRINT(RT_DEBUG_INFO, 
					("%s(Idx):Write(R%d,val:0x%x) to Chain(0x%x, idx:%d)\n",
						__FUNCTION__, bbpId, bbpVal, rx_ch_idx, idx));
		}
		rx_ch_idx >>= 1;
		idx++;
	}

	return NDIS_STATUS_SUCCESS;
}


NDIS_STATUS AsicBBPReadWithRxChain(
	IN RTMP_ADAPTER *pAd, 
	IN UCHAR bbpId, 
	IN CHAR *pBbpVal,
	IN RX_CHAIN_IDX rx_ch_idx)
{
	UCHAR idx, val;

	if (((pAd->MACVersion & 0xffff0000) < 0x28830000) || 
		(pAd->Antenna.field.RxPath == 1))
	{
		RTMP_BBP_IO_READ8_BY_REG_ID(pAd, bbpId, pBbpVal);
		return NDIS_STATUS_SUCCESS;
	}

	idx = 0;
	while(rx_ch_idx != 0)
	{
		if (idx >= pAd->Antenna.field.RxPath)
			break;

		if (rx_ch_idx & 0x01)
		{
			val = 0;
			RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R27, &val);
			val = (val & (~0x60)) | (idx << 5);
#ifdef RTMP_MAC_USB
			if ((IS_USB_INF(pAd)) && 
			    (RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R27, val) == STATUS_SUCCESS))
			{
				RTMP_BBP_IO_READ8_BY_REG_ID(pAd, bbpId, pBbpVal);
			}
#endif /* RTMP_MAC_USB */

			break;
		}
		rx_ch_idx >>= 1;
		idx++;
	}

	return NDIS_STATUS_SUCCESS;
}


INT rtmp_bbp_get_agc(struct _RTMP_ADAPTER *pAd, CHAR *agc, RX_CHAIN_IDX idx)
{
	return AsicBBPReadWithRxChain(pAd, BBP_R66, agc, idx);
}


INT rtmp_bbp_set_agc(struct _RTMP_ADAPTER *pAd, UCHAR agc, RX_CHAIN_IDX idx)
{
	return AsicBBPWriteWithRxChain(pAd, BBP_R66, agc, idx);
}


INT rtmp_bbp_set_filter_coefficient_ctrl(RTMP_ADAPTER *pAd, UCHAR Channel)
{
	UCHAR bbp_val = 0, org_val = 0;

	if (Channel == 14)
	{
		/* when Channel==14 && Mode==CCK && BandWidth==20M, BBP R4 bit5=1 */
		RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &org_val);
		bbp_val = org_val;
		if (WMODE_EQUAL(pAd->CommonCfg.PhyMode, WMODE_B))
			bbp_val |= 0x20;
		else
			bbp_val &= (~0x20);

		if (bbp_val != org_val)
			RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, bbp_val);
	}

	return TRUE;
}


UCHAR rtmp_bbp_get_random_seed(RTMP_ADAPTER *pAd)
{
	UCHAR value1, value2, value3, value4, value5;

	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R50, &value1);
	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R51, &value2);
	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R52, &value3);
	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R53, &value4);
	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R54, &value5);

	return (value1^value2^value3^value4^value5);
}


INT rtmp_bbp_is_ready(struct _RTMP_ADAPTER *pAd)
{
	INT idx = 0;
	UCHAR val;
	
	do 
	{
		RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R0, &val);
		if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST))			
			return FALSE;
		DBGPRINT(RT_DEBUG_TRACE, ("BBP version = %x\n", val));
	} while ((++idx < 20) && ((val == 0xff) || (val == 0x00)));

	return (((val == 0xff) || (val == 0x00)) ? FALSE : TRUE);
}


#ifdef PRE_ANT_SWITCH

#endif /* PRE_ANT_SWITCH */


#ifdef CFO_TRACK
#endif /* CFO_TRACK */


#ifdef MT7601
NDIS_STATUS MT7601_BBP_write(
	IN PRTMP_ADAPTER pAd,
	IN UCHAR regID,
	IN UCHAR value)
{
	BBP_CSR_CFG_STRUC  BbpCsr = { { 0 } };
	UINT i = 0;
	NDIS_STATUS	 ret;

#ifdef MT7601FPGA
	return;
#endif /*MT7601FPGA */


	if (pAd->WlanFunCtrl.field.WLAN_EN == 0)
	{
		DBGPRINT_ERR(("rlt_rf_write. Not allow to write BBP 0x%x : fail\n",  regID));	
		return STATUS_UNSUCCESSFUL;
	}

#ifdef RTMP_MAC_USB
	if (IS_USB_INF(pAd)) {
		RTMP_SEM_EVENT_WAIT(&pAd->reg_atomic, ret);
		if (ret != 0) {
			DBGPRINT(RT_DEBUG_ERROR, ("reg_atomic get failed(ret=%d)\n", ret));
			return STATUS_UNSUCCESSFUL;
		}
	}
#endif /* RTMP_MAC_USB */

	ASSERT((regID <= pAd->chipCap.MaxNumOfBbpId));

	ret = STATUS_UNSUCCESSFUL;
	do
	{
		RTMP_IO_READ32(pAd, BBP_CSR_CFG, &BbpCsr.word);

		if (!BbpCsr.field.Busy)
			break;
		i++;
	}
	while ((i < MAX_BUSY_COUNT) && (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)));

	if ((i == MAX_BUSY_COUNT) || (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)))
	{
		DBGPRINT_RAW(RT_DEBUG_ERROR, ("Retry count exhausted or device removed!!!\n"));
		goto done;
	}

	BbpCsr.word = 0;
	BbpCsr.field.fRead = 0;
	BbpCsr.field.BBP_RW_MODE = 1;
	BbpCsr.field.Busy = 1;
	BbpCsr.field.Value = value;
	BbpCsr.field.RegNum = regID;


	RTMP_IO_WRITE32(pAd, BBP_CSR_CFG, BbpCsr.word);

	ret = NDIS_STATUS_SUCCESS;
done:


#ifdef RTMP_MAC_USB
	if (IS_USB_INF(pAd)) {
		RTMP_SEM_EVENT_UP(&pAd->reg_atomic);
	}
#endif /* RTMP_MAC_USB */

	return ret;
}


NDIS_STATUS MT7601_BBP_read(
	IN RTMP_ADAPTER *pAd,
	IN UCHAR regID,
	IN UCHAR *pValue)
{
	BBP_CSR_CFG_STRUC  BbpCsr = { { 0 } };
	UINT i=0, k=0;
	NDIS_STATUS	 ret = STATUS_UNSUCCESSFUL;


	if (pAd->WlanFunCtrl.field.WLAN_EN == 0)
	{
		DBGPRINT_ERR(("MT7601_BBP_read. Not allow to read BBP 0x%x : fail\n",  regID));	
		return STATUS_UNSUCCESSFUL;
	}

#ifdef RTMP_MAC_USB
	if (IS_USB_INF(pAd)) {
		RTMP_SEM_EVENT_WAIT(&pAd->reg_atomic, i);
		if (i != 0) {
			DBGPRINT(RT_DEBUG_ERROR, ("reg_atomic get failed(ret=%d)\n", i));
			return STATUS_UNSUCCESSFUL;
		}
	}
#endif /* RTMP_MAC_USB */

	ASSERT((regID <= pAd->chipCap.MaxNumOfBbpId));

	for (i=0; i<MAX_BUSY_COUNT; i++)
	{
		if(RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST))
			goto done;
			
		RTMP_IO_READ32(pAd, BBP_CSR_CFG, &BbpCsr.word);

		if (BbpCsr.field.Busy == BUSY)
				continue;
		
		BbpCsr.word = 0;
		BbpCsr.field.fRead = 1;
		BbpCsr.field.BBP_RW_MODE = 1;
		BbpCsr.field.Busy = 1;
		BbpCsr.field.RegNum = regID;

		
		RTMP_IO_WRITE32(pAd, BBP_CSR_CFG, BbpCsr.word);
		
		for (k=0; k<MAX_BUSY_COUNT; k++)
		{
			if(RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST))
				goto done;
				
			RTMP_IO_READ32(pAd, BBP_CSR_CFG, &BbpCsr.word);

			if (BbpCsr.field.Busy == IDLE)
				break;
		}
		
		if ((BbpCsr.field.Busy == IDLE) &&
			(BbpCsr.field.RegNum == regID) )
		{
			*pValue = (UCHAR)(BbpCsr.field.Value);
			break;
		}
	}

	if (BbpCsr.field.Busy == BUSY)
	{																	
		DBGPRINT_ERR(("BBP read R%d=0x%X fail, i[%d], k[%d]\n", regID, BbpCsr.word,i,k));
		goto done;
	}
	ret = STATUS_SUCCESS;

done:
#ifdef RTMP_MAC_USB
	if (IS_USB_INF(pAd)) {
		RTMP_SEM_EVENT_UP(&pAd->reg_atomic);
	}
#endif /* RTMP_MAC_USB */

	return ret;
}


#endif /* MT7601 */

#endif /* RTMP_MAC */

