/*

* Copyright (c) 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: 

*

*/

#ifndef USBPNINTERFACE_H

#define USBPNINTERFACE_H

//  INCLUDES

#include <e32base.h>    // For CBase

#include <iscapi.h>     // For RIscApi

#include <d32usbc.h>    // For RDevUsbcClient

#include "musbpnaltobserver.h"

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class MUsbPnControlObserver;

class CUsbPnAlt;

class CUsbPnIsaReceiver;

class CUsbPnUsbReceiver;

// CLASS DECLARATION

class CUsbPnInterface : public CBase, public MUsbPnAltObserver

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CUsbPnInterface* NewL();

        /**

        * Destructor.

        */

        ~CUsbPnInterface();

    public: // Functions from base classes

        /**

        * Handles device state notifications. Device state or alternate setting change.

        * @param  TUint aDeviceState USB device's state

        */

        void HandleDeviceStateChange( TUint aDeviceState );

    private:

        /**

        * C++ default constructor.

        */

        CUsbPnInterface();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        /**

        * Initialises Phonet interfaces

        */

        void InitialiseInterfaceL();

        /**

        * Releases Phonet interfaces in opposite order.

        */

        void ReleaseInterface();

        /**

        * Activates data transfer mode when USB host selects alternate setting.

        * @since Series ?XX ?SeriesXX_version

        * @param TUint aAltSetNumber. 0 for altset zero. 1 for data transfer mode.

        */

        void SetAltSetting( TUint aAltSetNumber );

    private:    // Data

        // Ownership. Alternate setting listening active object

        CUsbPnAlt*              iAlt;

        // Ownership. Isa receiver active object

        CUsbPnIsaReceiver*      iIsaReceiver;

        // Ownership. USB receiver active object

        CUsbPnUsbReceiver*      iUsbReceiver;

        // Ownership.

        RDevUsbcClient          iCommLdd;

        // Ownership.

        RDevUsbcClient          iPnDataLdd;

        // Ownership.

        RIscApi                 iIscApi;

        // Boolean flag for succesful initialisation

        TBool                   iInitialised;

    };

#endif      // USBPNINTERFACE_H

// End of File