/*

* Copyright (c) 2005-2006 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:  BT sync socket.

*  Version     : %version: 7 %

*

*/

#ifndef BTMACSCOLINKER_H

#define BTMACSCOLINKER_H

#include <e32base.h> 

#include <bt_sock.h>

#include <bttypes.h>

class MBtmSockObserver;

const TInt KEscoPacketTypeSpec = TBTSyncPackets::ESyncPacketsEV5 |

    TBTSyncPackets::ESyncPacketsEV3 |

    TBTSyncPackets::ESyncPacketsEV4;

const TInt KScoPacketTypeSpec = TBTSyncPackets::ESyncAnySCOPacket;

const TInt KMaxLatencySpec = 16;

/**

 * Sync socket.

 *

 *  @since S60 v3.1

 */

class CBtmSyncSock : public CBase, public MBluetoothSynchronousLinkNotifier

    {

public:

    static CBtmSyncSock* NewL(MBtmSockObserver& aObserver, RSocketServ& aSockServ);

    virtual ~CBtmSyncSock();

    void SetupL(const TBTDevAddr& aAddr, const TBTSyncPackets& aPackets);

    void CancelSetup();

    /**

     * Disconnects a sync socket.

     *

     * @since S60 v3.1

     */

    void DisconnectL();

    /**

     * Listens to incoming sync sock connection.

     *

     * @since S60 v3.1

     */

    void AcceptL(TBool aAllowEsco);

    /**

     * Cancel the accept operation.

     *

     * @since S60 v3.1

     */

    void CancelAccept();

	void SetMaxLatency(TUint16 aLatency);

	void SetRetransmissionEffort(TBTeSCORetransmissionTypes aRetransmissionEffort);

    /**

     * Zero the owned pointers in this object.

     *

     * @since S60 v3.1

     */

    void Reset();

    /**

     * Sets the socket observer to the specified.

     *

     * @since S60 v3.1

     * @param aObserver the new observer.

     */

    void SetObserver(MBtmSockObserver& aObserver);

    /**

     * Return audio link latency

     *

     * @since S60 5.0

     * @return latency.

     */ 

    TInt Latency();

private:  

    // From base class MBluetoothSynchronousLinkNotifier

    /**

     * Notification of a synchronous socket setup completion event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     */

    void HandleSetupConnectionCompleteL(TInt aErr);

    /**

     * Notification of a synchronous socket disconnect completion event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     */

    void HandleDisconnectionCompleteL(TInt aErr);

    /**

     * Notification of a synchronous socket accept completion event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     */

    void HandleAcceptConnectionCompleteL(TInt aErr);

    /**

     * Notification of a synchronous socket send completion event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     */

    void HandleSendCompleteL(TInt aErr);

    /**

     * Notification of a synchronous socket send completion event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     */

    void HandleReceiveCompleteL(TInt aErr);

private:

    CBtmSyncSock(MBtmSockObserver& aObserver, RSocketServ& aSockServ);

    void ConstructL();

private:

    class TScoAcceptor;

    void AcceptRedirectL(TInt aErr, TScoAcceptor& aAcceptor);

    class TScoAcceptor : public MBluetoothSynchronousLinkNotifier

        {

    public:

        TScoAcceptor();

        TScoAcceptor(CBtmSyncSock* aParent);

    private:

        CBtmSyncSock* iParent;

    private:

        void HandleSetupConnectionCompleteL(TInt aErr);

        void HandleDisconnectionCompleteL(TInt aErr);

        void HandleAcceptConnectionCompleteL(TInt aErr);

        void HandleSendCompleteL(TInt aErr);

        void HandleReceiveCompleteL(TInt aErr);

        friend void CBtmSyncSock::AcceptRedirectL(TInt aErr, TScoAcceptor& aAcceptor);

        };

private:    // Data

    /**

     * socket event observer.

     * Not own.

     */

    MBtmSockObserver* iObserver;

    /**

     * The socket server session

     * Not own.

     */

    RSocketServ& iServer;

    /**

     * The BT SCO link for setup connection and SCO accept

     */

    CBluetoothSynchronousLink* iSco;

    /**

     * The BT Sync link for ESCO accept

     */

    CBluetoothSynchronousLink* iEScoLink;

    TScoAcceptor iScoAcceptor;

    TScoAcceptor iESco_Acceptor;

    CBluetoothSynchronousLink* iConnectedLink; // pointer to either iSco or iEScoLink or none.

};

#endif      // BTMACSCOLINKER_H