/*

* 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 CUSBPNISARECEIVER_H

#define CUSBPNISARECEIVER_H

//  INCLUDES

#include <e32base.h>

#include "musbpnbufferlistener.h"

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class MUsbPnBufferListener;

class CUsbPnUsbSender;

class CUsbPnPacket;

class RIscApi;

class RDevUsbcClient;

// CLASS DECLARATION

/**

*  Message sender for ISA direction.

*/

class CUsbPnIsaReceiver : public CActive, public MUsbPnBufferListener

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CUsbPnIsaReceiver* NewL( RIscApi& aIscApi, RDevUsbcClient& aLdd );

        /**

        * Destructor.

        */

        ~CUsbPnIsaReceiver();

    public: // Functions from base classes

        /**

        * From MUsbPnBufferListener. Called by CUsbPnInterface when initialised

        * or by sender when reactivating receive.

        * @param TBool aDiscard. Flag for determining if data can be transmitted to USB.

        */

        void Receive( TBool aDiscard );

        /**

        * Handles flag that identify if Phonet connection is open to PC

        * @param TBool aForwardFlag. Flag for determining if data can be transmitted to USB.

        */

        void SetForwardFlag( TBool aForward );

    protected: // Functions from base classes

        /**

        * From CActive

        */

        void DoCancel( );

        /**

        * From CActive

        */

        void RunL( );

        /**

        * From CActive

        */

        TInt RunError( TInt );

    private:

        /**

        * C++ default constructor.

        */

        CUsbPnIsaReceiver( RIscApi& );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL( RDevUsbcClient& );

        /**

        * Construct message as needed by receiver.

        */

        void ConstructMessage();

    private:    // Data

        // Ownership. Pointer for sending received data to USB

        CUsbPnUsbSender*        iUsbSender;

        // Reference to ISCAPI handle for receiving data

        RIscApi&                iIscApi;

        //Not owned. Packet to receive to

        CUsbPnPacket*           iPacket;

        // Modifiable pointer to buffer.

        TPtr8                   iRecvPtr;

        // ISCAPI tells if buffer is too short

        TUint16                 iNeededLength;

        // Flag for discarding when USB is not active

        TBool                   iForwardFlag;

    };

#endif      // CUSBPNISARECEIVER_H

// End of File