// 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 "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:

//

#ifndef __MMFDEVSOUNDSESSIONTND_H__

#define __MMFDEVSOUNDSESSIONTND_H__

#include "MmfDevSoundSession.h"

#include "MmfDevSoundInfo.h"

/*

 *

 *	Class Name:	CMMFDevSoundSessionXtnd

 *

 *  This class provides an extended interface for CMMFDevSound - intended

 *  to provide additional calls that are applicable to a particular implementation

 *  This version is built on RMdaDevSound

 */

class CMMFDevSoundSessionXtnd;	// declared here.

NONSHARABLE_CLASS( CMMFDevSoundSessionXtnd ) : public CMMFDevSoundSession

	{

public:

	// Interface for Audio Policy

	// Sets id for this DevSound instance

	void SetDevSoundId(TInt aDevSoundId);

	// Returns info about this DevSound instance

	TMMFDevSoundInfo DevSoundInfo();

	// Called by Audio Policy Server when play reqeust is granted

	void StartPlayDataL();

	// Called by Audio Policy Server when record reqeust is granted

	void StartRecordDataL();

	// Called by Audio Policy Server when play tone reqeust is granted

	void StartPlayToneL();

	// Called by Audio Policy Server when play dual tone request is granted

	void StartPlayDualToneL();

	// Called by Audio Policy Server when play DTMF reqeust is granted

	void StartPlayDTMFStringL();

	// Called by Audio Policy Server when play tone sequence reqeust is granted

	void StartPlayToneSequenceL();

	// Called by Audio Policy Server when DevSound instance looses device

	void SendEvent(const TMMFEvent& aEvent);

	// Updates the total bytes played from audio device

	void UpdateBytesPlayed();

	// CMMFHwDevice implementation:

	TInt FillThisBuffer(CMMFBuffer& aHwBuffer);

	TInt EmptyThisBuffer(CMMFBuffer& aHwBuffer);

	TInt DeviceMessage(TDesC8& aMsg);

	void DeviceStopped();

	// CMMFHwDevice implementation ends

	};

#endif // __MMFDEVSOUNDSESSIONTND_H__