// Copyright (c) 2005-2009 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 MMFDEVSOUNDCIMUXUTILITY_H

#define MMFDEVSOUNDCIMUXUTILITY_H

#include <f32file.h>

#include <e32math.h>

#include <s32mem.h> 

#include "mmfaudioclientserver.h"

#include <mmf/server/mmfdevsoundcustominterface.h>

/**

* @internalTechnology

* @file

*/

class CMMFDevSoundCIMuxUtility;

class TA3FCustomInterfaceCommand;

NONSHARABLE_CLASS( CMMFDevSoundCIMuxUtility ) : public CBase, 

												public MMMFDevSoundCustomInterfaceMuxUtility

	{

public:

	enum TMMFDevSoundCustomCommand

		{

		EMMFDevSoundCustomCommandCIOpenSlave,

		EMMFDevSoundCustomCommandCICloseSlave,

		EMMFDevSoundCustomCommandCISendSlaveSyncCommand,

		EMMFDevSoundCustomCommandCISendSlaveSyncCommandResult,

		EMMFDevSoundCustomCommandCISendSlaveAsyncCommand,

		EMMFDevSoundCustomCommandCISendSlaveAsyncCommandResult

		};

		/*

	* internal class used for Asynchronous Custom Command message passing from CI Mux to Demux.

	*/

	NONSHARABLE_CLASS(CAsyncCommandCleanup): public CActive

		{

	public:

		static CAsyncCommandCleanup* NewL(CMMFDevSoundCIMuxUtility* aMuxUtility,MMMFDevSoundCustomInterfaceChannel* aCustomChannel);

		~CAsyncCommandCleanup();

		void AsyncCustomCommand(CMMFDevSoundCIMuxUtility::TMMFDevSoundCustomCommand aType,TMMFDevSoundCustomInterfaceCommandPackage& aComPackage, TRequestStatus& aStatus, const TDesC8& aPackageBuf, TDes8* aResultBuf);

	private:

		void ConstructL();

		void RunL();

		void DoCancel();

		CAsyncCommandCleanup(CMMFDevSoundCIMuxUtility* aMuxUtility,MMMFDevSoundCustomInterfaceChannel* aCustomChannel);

	public:

		TPckgBuf<TA3FCustomInterfaceCommand>* iCommandBuffer;

	private:

		CMMFDevSoundCIMuxUtility* iMuxUtility;

		MMMFDevSoundCustomInterfaceChannel* iCustomChannel;		

		TRequestStatus* iClientRequestStatus;

		};

public:

	static CMMFDevSoundCIMuxUtility* NewL(MMMFDevSoundCustomInterfaceChannel* aCustomChannel);

	virtual ~CMMFDevSoundCIMuxUtility();

	void ConstructL();

	// create a custom interface Mux implementation.

	MMMFDevSoundCustomInterfaceMuxPlugin* CreateCustomInterfaceMuxL(TUid aInterfaceId);

	// from MMMFDevSoundCustomInterfaceMux interface.

	virtual TInt OpenSlave(TUid, const TDesC8& aPackageBuf);

	virtual void CloseSlave(TInt aHandle);

	virtual TInt SendSlaveSyncCommand(TInt aHandle, TInt aCommand, const TDesC8& aPackageBuf);

	virtual TInt SendSlaveSyncCommandResult(TInt aHandle, TInt aCommand, const TDesC8& aPackageBuf, TDes8& aResultBuf); 

	virtual void SendSlaveAsyncCommand(TMMFDevSoundCustomInterfaceCommandPackage& aComPackage, TRequestStatus& aStatus, const TDesC8& aPackageBuf);

	virtual void SendSlaveAsyncCommandResult(TMMFDevSoundCustomInterfaceCommandPackage& aComPackage, TRequestStatus& aStatus, const TDesC8& aPackageBuf, TDes8& aResultBuf);	

	void RemoveAsyncCommand(CAsyncCommandCleanup* aAsyncCustomCommandCleanup);

private:

	CMMFDevSoundCIMuxUtility(MMMFDevSoundCustomInterfaceChannel* aCustomChannel);

	// Not owned.

	MMMFDevSoundCustomInterfaceChannel* iCustomChannel;

	RPointerArray <CAsyncCommandCleanup> iAsyncCustomCommandCleanup;

	};

/*

* internal class used to pass custom command & custom command type from CI Mux to DeMux.

*/

class TA3FCustomInterfaceCommand

	{

public:

	// Custom Interface command (meaning depends on CI in use)

	TInt iCommand;

	// Internal slave command type.

	CMMFDevSoundCIMuxUtility::TMMFDevSoundCustomCommand iType;

	// CI handle (equates to an offset into array of open CIs for most command types)

	TInt iHandle;

	};

#endif