/*

* 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 RFComm socket.

*

*/

#ifndef C_BTMRFCOMMSOCK_H

#define C_BTMRFCOMMSOCK_H

#include <bt_sock.h>

#include "btmdefs.h"

class MBtmSockObserver;

class CDesC8ArrayFlat;

/**

 * RFComm socket.

 *

 * A RFComm connection.

 *

 *  @since S60 v3.1

 */

class CBtmRfcommSock : public CBase, public MBluetoothSocketNotifier

    {

public:

    static CBtmRfcommSock* NewL(MBtmSockObserver& aObserver, RSocketServ& aServer);

    virtual ~CBtmRfcommSock();

public:

    /**

     * Makes a RFCOMM connection to a BT device

     *

     * @since S60 v3.1

     * @param aAddr the BD address of the BT device

     */ 

    void ConnectL(TBTSockAddr& aAddr, TUint aService);

    /**

     * Cancel the outstanding connect request

     *

     * @since S60 v3.1

     */

    void CancelConnect();

    /**

     * Socket accept operation.

     * Register a RFComm channel first then register SDP service according the

     * given service id then starts socket accept operation.

     *

     * @since S60 v3.1

     * @param aService The service (profile)

     * @param aSec the security requirement of the service

     */

    TUint ListenL(TUint aService, const TBTServiceSecurity& aSec, TUint aLastUsedPort);

    /**

     * cancels the outstanding accept operation.

     * Th reserved channel will be freed and the registered service will be removed.

     *

     * @since S60 v3.1

     */

    void CancelListen();

    /**

     * Disconnects the socket connection

     *

     * @since S60 v3.1

     * @param aHow Information about the reason of shutdown.

     */

    void Disconnect(RSocket::TShutdown aHow = RSocket::ENormal);

    /**

     * Writes a data packet to the connected BT device

     *

     * @since S60 v3.1

     * @param aDesc the data packet

     */

    void WriteL(const TDesC8& aData);

    /**

     * Cancel writing

     *

     * @since S60 v3.1

     */

    void CancelWrite();

    /**

     * Get the connected remote BD address 

     *

     * @since S60 v3.1

     * @return the BD address

     */

    const TBTDevAddr& Remote() const; 

    /**

     * Activates the notification of baseband events

     *

     * @since S60 v3.1

     * @param aNotification the interested baseband events

     * @return the completion error code

     */

    TInt ActivateBasebandEventNotification(TInt aNotification);

    /**

     * Sets the socket observer to the specified.

     *

     * @since S60 v3.1

     * @param aObserver the new observer.

     */

    void SetObserver(MBtmSockObserver& aObserver);

    /**

     * Gets the service (a RFComm profile) that this connection is for.

     *

     * @since S60 v3.1

     * @return the service id.

     */

    TUint Service() const;

    TInt ActivateSniffRequester();

    void RequestLinkToActiveMode();

    TBool IsInSniff() const;

    void SetService(TUint aService);

    TBool AccessoryInitiatedConnection();

private:  

    // from base class MBluetoothSocketNotifier

    /**

     * From MBluetoothSocketNotifier

     * Notification of a RFCOMM socket connect completion event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     * @param aType the type (HF or HS) of the accessory if the connection is successful

     */

    void HandleConnectCompleteL(TInt aErr);

    /**

     * From MBluetoothSocketNotifier

     * Notification of a RFCOMM socket accpet completion event.

     *

     * @since S60 v3.1

     * @param aType the type (HF or HS) of the accessory if the connection is successful

     * @param aErr the completion error code

     */

    void HandleAcceptCompleteL(TInt aErr);

    /**

     * From MBluetoothSocketNotifier

     * Notification of a RFCOMM socket shutdown completion event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     */

    void HandleShutdownCompleteL(TInt aErr);

    /**

     * From MBluetoothSocketNotifier

     * Notification of a RFCOMM socket send completion event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     */

    void HandleSendCompleteL(TInt aErr);

    /**

     * From MBluetoothSocketNotifier

     * Notification of a RFCOMM socket receive completion event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     */

    void HandleReceiveCompleteL(TInt aErr);

    /** 

     * From MBluetoothSocketNotifier

     * Notification of an ioctl complete event.

     * 

     * @since S60 v3.1

     * @param aErr the returned error

     */

    void HandleIoctlCompleteL(TInt aErr);

    /**

     * From MBluetoothSocketNotifier

     * Notification of a baseband event.

     *

     * @since S60 v3.1

     * @param aErr the completion error code

     * @param TBTBasebandEventNotification Bit(s) set indicate what event has taken place.

     */        

    void HandleActivateBasebandEventNotifierCompleteL(

        TInt aErr, TBTBasebandEventNotification& aEventNotification);

    // From base class CBtmActive

private:

    void ConstructL();

    CBtmRfcommSock(MBtmSockObserver& aObserver, RSocketServ& aServer);

    void SendPacketL();

    /**

     * Reads data from the connected BT device

     *

     * @since S60 v3.1

     * @param aData Contains the received data on completion

     */

    void ReceiveL();

    /**

     * Cancel reading

     *

     * @since S60 v3.1

     */

    void CancelReceive();

private:

    /**

     * socket event observer.

     * Not own.

     */

    MBtmSockObserver* iObserver;

    /**

     * The socket server session

     * Not own.

     */

    RSocketServ& iServer;

    /**

     * The RFComm connection socket

     */

    CBluetoothSocket* iDataSocket;

    /**

     * The listening socket 

     */

    CBluetoothSocket* iListenSocket;

    /**

     * the length of data read and written

     */

    TSockXfrLength iXfrLength;

    /**

     * the baseband event notification

     */

    TBTBasebandEvent iEventNotification;

    TInt iBBNotificationMode;

    TBool iInSniff;

    /**

     * The service for which the socket connection is served

     */

    TUint iService;

    /** 

     * The remote BD address

     */

    TBTDevAddr iRemote;

    TBool iRemoteHasConnected; // who initiated connection

    RBuf8 iInData; // owned

    RBuf8 iOutData; // owned

    CDesC8ArrayFlat* iOutDataQueue; // owned

    TBool iWriting;

    RBTPhysicalLinkAdapter iAda;

    };

#endif    // C_BTMRFCOMMSOCK_H