#ifndef __TEST_INTERFACE_BASE_H

#define __TEST_INTERFACE_BASE_H

/*

* Copyright (c) 2007-2009 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 testinterfacebase.h

* @internalComponent

* 

*

*/

#include <e32base.h>

#include "usbclientstatewatcher.h"

#include "controlendpointreader.h"

#include "endpointwriter.h"

#include "endpointstallwatcher.h"

namespace NUnitTesting_USBDI

	{

// Forward declarations

class RUsbTestDevice;

class CInterfaceSettingBase;

/**

This class represents a test USB interface for the test USB device

*/	

class CInterfaceBase : public CBase, public MAlternateSettingObserver, public MRequestHandler

	{

public:

	/**

	Constructor, build an interface for a USB modelled device

	@param aTestDevice the device that this is an interface for

	@param aName the name given to the interface

	*/

	CInterfaceBase(RUsbTestDevice& aTestDevice,const TDesC16& aName);

	/**

	Base class 2nd phase construction

	*/

	void BaseConstructL();

	/**

	Destructor

	*/

	virtual ~CInterfaceBase();

	/**

	Adds an alternate interface setting for this interface

	@param aInterface an alternate interface setting associated with this interface

	*/

	void AddInterfaceSettingL(CInterfaceSettingBase* aInterfaceSetting);

	/**

	Accesses an alternate interface setting with the specified setting number

	@param aSettingNumber the alternate interface setting number

	@return a referrence to the alternate setting 

	*/

	CInterfaceSettingBase& AlternateSetting(TInt aSettingNumber) const;

	/**

	Query the number of alternate interface settings for this interface

	@return the number of alternate interface settings

	*/

	TInt InterfaceSettingCount() const;

	/**

	Start the interface reading interface directed control transfers on endpoint 0

	*/

	void StartEp0Reading();

	/**

	Stop the interface from reading interface directed control transfers on endpoint 0

	*/

	void StopEp0Reading();

	/**

	Stall the specified endpoint

	@param aEndpointNumber the endpoint to stall

	@return KErrNone if successful

	*/

	TInt StallEndpoint(TUint16 aEndpointNumber);

public: // From MAlternateSettingObserver

	/**

	Get notification when the host selects an alternate interface setting on this interface

	@param aAlternateInterfaceSetting the alternate interface setting number	

	*/

	virtual void AlternateInterfaceSelectedL(TInt aAlternateInterfaceSetting);

public: // From MEndpointDataHandler

	/**

	Process any Ep0 control transfer requests that are interface directed

	@param aRequest the request number (id)

	@param aValue the parameter to the request

	@param aIndex the interface number that the request is directed at

	@param aDataReqLength the data size in the transfer DATA1 packet(s)

	@param aPayload the request content data (i.e. all the data from DATA1 packets)

	*/

	virtual TInt ProcessRequestL(TUint8 aRequest,TUint16 aValue,TUint16 aIndex,TUint16 aDataReqLength,const TDesC8& aPayload);

private:

	TUint32 ExtractNumberL(const TDesC8& aPayload);

	void ExtractTwoNumbersL(const TDesC8& aPayload, TUint32& aFirstNum, TUint32& aSecondNum);

private:

	/**

	The test device object that owns this interface

	*/

	RUsbTestDevice& iDevice;

	/**

	The USB client driver

	Only use interface related API

	*/

	RDevUsbcClient iClientDriver;

	/**

	The alternate settings for this interface

	*/

	RPointerArray<CInterfaceSettingBase> iAlternateSettings;

	/**

	The watcher of alternate interface selection by host

	*/

	CAlternateInterfaceSelectionWatcher* iSelectionWatcher;

	/**

	The watcher of endpoint stalling

	*/

	CEndpointStallWatcher* iStallWatcher;

	/**

	The reader of interface control endpoint 0

	*/

	CControlEndpointReader* iEp0Reader;

	/**

	The writer of interface control endpoint 0 

	*/

	CEndpointWriter* iEp0Writer;

	/**

	*/

	TBuf16<64> iInterfaceName;

	/**

	An Auxiliary buffer, to be used for anything temporary

	*/	

	HBufC8* iAuxBuffer;

	/**

	The current alternate interface setting that is selected (defaults to zero)

	*/

	TInt iCurrentAlternateInterfaceSetting;

	};

	}

#endif