#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