// Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

// lukasz.forynski@gmail.com

//

// Description:

// omap3530/omap3530_drivers/spi/master.h

//

#ifndef __OMAP3530_SPI_MASTER_H__

#define __OMAP3530_SPI_MASTER_H__

#include <drivers/iic_channel.h>

_LIT(KIicPslThreadName,"SpiChannelThread_");

const TInt KIicPslDfcPriority = 0;

const TInt KIicPslThreadPriority = 24;

// class declaration for SPI master

class DSpiMasterBeagle : public DIicBusChannelMaster

	{

public:

	static DSpiMasterBeagle* New(TInt aChannelNumber, const TBusType aBusType, const TChannelDuplex aChanDuplex);

	virtual TInt DoRequest(TIicBusTransaction* aTransaction); // Gateway function for PSL implementation

private:

	DSpiMasterBeagle(TInt aChannelNumber, const TBusType aBusType, const TChannelDuplex aChanDuplex);

	// Override base-class pure virtual methods

	virtual TInt DoCreate();

	virtual TInt CheckHdr(TDes8* aHdr);

	virtual TInt HandleSlaveTimeout();

	// Internal methods

	TInt ConfigureInterface();

	TBool TransConfigDiffersFromPrev();

	TInt ProcessNextTransfers();

	TInt StartTransfer(TIicBusTransfer* aTransferPtr, TUint8 aType);

	TInt DoTransfer(TUint8 aType);

	static void Isr(TAny* aPtr);

	static void TransferEndDfc(TAny* aPtr);

	void ExitComplete(TInt aErr, TBool aComplete = ETrue);

#ifdef _DEBUG

	void DumpCurrentStatus(const TInt8* aWhere = NULL);

#endif

private:

	TDfc iTransferEndDfc;

	TIicOperationType iOperation;

	TUint8 iWordSize;

	TInt8 iTxFifoThreshold;

	enum TMyState

		{

		EIdle,

		EBusy

		};

	TMyState iState;

	TInt iIrqId;

	TLinAddr iHwBase;

	// Pointers used to store current transfers information

	TIicBusTransfer* iHalfDTransfer;

	TIicBusTransfer* iFullDTransfer;

	// Pointer to the current transaction.

	TIicBusTransaction* iCurrTransaction;

	// Pointers to buffers used for Rx and Tx transfers

	TInt8 *iTxData;

	TInt8 *iRxData;

	TInt8 *iTxDataEnd;

	TInt8 *iRxDataEnd;

	// global status of the transaction

	volatile TInt iTransactionStatus;

	TConfigSpiV01 iCurrHeader;

	TInt iCurrSS;

	};

#endif //__OMAP3530_SPI_MASTER_H__