// Copyright (c) 2004-2009 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:

//

// Description:

//

/**

 @file

 @internalTechnology

*/

#ifndef __PROTOCOL_H__

#define __PROTOCOL_H__

#include <e32base.h>			// C Class Definitions, Cleanup Stack

#include <e32def.h>				// T Type  Definitions

#include <e32std.h>    			// ELeave definition

#include "usbmsshared.h"

class MProtocolBase;

class MTransportBase

	{

	public:

	virtual void SetupWriteData(TPtrC8& aData) = 0;

	virtual TInt Start() = 0;

	virtual TInt Stop() = 0;

	virtual void RegisterProtocol(MProtocolBase& aProtocol) = 0;

	virtual TInt BytesAvailable() = 0;

	virtual ~MTransportBase() {};

	virtual TInt InitialiseTransportL(TInt aTransportLddFlag) = 0;

	virtual void SetupReadData(TUint aLength) = 0;

	virtual void GetCommandBufPtr(TPtr8& aDes, TUint aLength) = 0; 

	virtual void GetReadDataBufPtr(TPtr8& aDes) = 0;

	virtual void GetWriteDataBufPtr(TPtrC8& aDes) = 0; 

#ifdef MSDC_MULTITHREADED

	virtual void ProcessReadData(TAny* aAddress) = 0;

#endif

	};

class MProtocolBase

	{

	public:

	virtual void RegisterTransport(MTransportBase* aTransport) = 0;

	virtual TBool DecodePacket(TPtrC8& aData, TUint aLun) = 0;

	virtual TInt ReadComplete(TInt aError) = 0;

	virtual TInt Cancel() = 0;

	virtual void ReportHighSpeedDevice() {};

	virtual ~MProtocolBase() {};

#ifdef MSDC_MULTITHREADED

	virtual void InitializeBufferPointers(TPtr8& aDes1, TPtr8& aDes2) = 0;

#endif

	};

#endif // __PROTOCOL_H__