rt_rf.c

/*
 *************************************************************************
 * 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_RF_RW_SUPPORT
/*
	========================================================================
	
	Routine Description: Write RT30xx RF register through MAC

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NDIS_STATUS RT30xxWriteRFRegister(
	IN	PRTMP_ADAPTER	pAd,
	IN	UCHAR			regID,
	IN	UCHAR			value)
{
	RF_CSR_CFG_STRUC	rfcsr = { { 0 } };
	UINT				i = 0;


#ifdef RTMP_MAC_PCI
	if ((pAd->bPCIclkOff == TRUE) || (pAd->LastMCUCmd == SLEEP_MCU_CMD))
	{
		DBGPRINT_ERR(("RT30xxWriteRFRegister. Not allow to write RF 0x%x : fail\n",  regID));	
		return STATUS_UNSUCCESSFUL;
	}
#endif // RTMP_MAC_PCI //

	{
		if (IS_RT3883(pAd))
		{
			ASSERT((regID <= 63)); // R0~R63
		}
		else
		{
		ASSERT((regID <= 31)); // R0~R31
		}

		do
		{
			RTMP_IO_READ32(pAd, RF_CSR_CFG, &rfcsr.word);

			if (!rfcsr.field.RF_CSR_KICK)
				break;
			i++;
		}
		while ((i < RETRY_LIMIT) && (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)));

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

		rfcsr.field.RF_CSR_WR = 1;
		rfcsr.field.RF_CSR_KICK = 1;
		rfcsr.field.TESTCSR_RFACC_REGNUM = regID; // R0~R31
		rfcsr.field.RF_CSR_DATA = value;
		
		RTMP_IO_WRITE32(pAd, RF_CSR_CFG, rfcsr.word);
	}

	return NDIS_STATUS_SUCCESS;
}


/*
	========================================================================
	
	Routine Description: Read RT30xx RF register through MAC

	Arguments:

	Return Value:

	IRQL = 
	
	Note:
	
	========================================================================
*/
NDIS_STATUS RT30xxReadRFRegister(
	IN	PRTMP_ADAPTER	pAd,
	IN	UCHAR			regID,
	IN	PUCHAR			pValue)
{
	RF_CSR_CFG_STRUC	rfcsr = { { 0 } };
	UINT				i=0, k=0;



#ifdef RTMP_MAC_PCI
	if ((pAd->bPCIclkOff == TRUE) || (pAd->LastMCUCmd == SLEEP_MCU_CMD))
	{
		DBGPRINT_ERR(("RT30xxReadRFRegister. Not allow to read RF 0x%x : fail\n",  regID));	
		return STATUS_UNSUCCESSFUL;
	}
#endif // RTMP_MAC_PCI //

	{
		if (IS_RT3883(pAd))
		{
			ASSERT((regID <= 63)); // R0~R63
		}
		else
		{
		ASSERT((regID <= 31)); // R0~R31
		}

		for (i=0; i<MAX_BUSY_COUNT; i++)
		{
			RTMP_IO_READ32(pAd, RF_CSR_CFG, &rfcsr.word);

			if (rfcsr.field.RF_CSR_KICK == BUSY)									
			{																
				continue;													
			}																
			rfcsr.word = 0;
			rfcsr.field.RF_CSR_WR = 0;
			rfcsr.field.RF_CSR_KICK = 1;
			rfcsr.field.TESTCSR_RFACC_REGNUM = regID;
			RTMP_IO_WRITE32(pAd, RF_CSR_CFG, rfcsr.word);
			for (k=0; k<MAX_BUSY_COUNT; k++)
			{
				RTMP_IO_READ32(pAd, RF_CSR_CFG, &rfcsr.word);

				if (rfcsr.field.RF_CSR_KICK == IDLE)
					break;
			}
			if ((rfcsr.field.RF_CSR_KICK == IDLE) &&
				(rfcsr.field.TESTCSR_RFACC_REGNUM == regID))
			{
				*pValue = (UCHAR)(rfcsr.field.RF_CSR_DATA);
				break;
			}
		}
		if (rfcsr.field.RF_CSR_KICK == BUSY)
		{																	
			DBGPRINT_ERR(("RF read R%d=0x%X fail, i[%d], k[%d]\n", regID, rfcsr.word,i,k));
			return STATUS_UNSUCCESSFUL;
		}
	}

	return STATUS_SUCCESS;
}


VOID NICInitRFRegisters(
	IN RTMP_ADAPTER *pAd)
{
	if (pAd->chipOps.AsicRfInit)
		pAd->chipOps.AsicRfInit(pAd);
}


VOID RtmpChipOpsRFHook(
	IN RTMP_ADAPTER *pAd)
{
	RTMP_CHIP_OP *pChipOps = &pAd->chipOps;

	pChipOps->pRFRegTable = NULL;
	pChipOps->pBBPRegTable = NULL;
	pChipOps->bbpRegTbSize = 0;
	pChipOps->AsicRfInit = NULL;
	pChipOps->AsicRfTurnOn = NULL;
	pChipOps->AsicRfTurnOff = NULL;
	pChipOps->AsicReverseRfFromSleepMode = NULL;
	pChipOps->AsicHaltAction = NULL;
	
	/* We depends on RfICType and MACVersion to assign the corresponding operation callbacks. */




#ifdef RT30xx
#ifdef RT35xx
	if (IS_RT3572(pAd))
	{
		pChipOps->AsicRfTurnOff = RT30xxLoadRFSleepModeSetup;
		pChipOps->pRFRegTable = RF3572_RFRegTable;
		pChipOps->AsicRfInit = NICInitRT3572RFRegisters;
		pChipOps->AsicReverseRfFromSleepMode = RT3572ReverseRFSleepModeSetup;
		pChipOps->AsicHaltAction = RT30xxHaltAction;
	}
#endif // RT35xx //


	if (IS_RT30xx(pAd))
	{
		/* 
			WARNING: 
				Currently following table are shared by all RT30xx based IC, change it carefully when you add a new IC here.
		*/
		pChipOps->pRFRegTable = RT3020_RFRegTable;
		pChipOps->AsicHaltAction = RT30xxHaltAction;
		pChipOps->AsicRfTurnOff = RT30xxLoadRFSleepModeSetup;
		pChipOps->AsicReverseRfFromSleepMode = RT30xxReverseRFSleepModeSetup;
		
	}
#endif // RT30xx //

	DBGPRINT(RT_DEBUG_TRACE, ("Chip specific bbpRegTbSize=%d!\n", pChipOps->bbpRegTbSize));
	
}

#endif // RTMP_RF_RW_SUPPORT //