1 /*

     2 * Copyright (c) 2006-2008 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Provides speaker functionality

    15 *

    16 */

    17 

    18 

    19 #ifndef CSPSPEAKER_H

    20 #define CSPSPEAKER_H

    21 

    22 #include "cspdevsound.h"

    23 

    24 class MCSPDevSoundObserver;

    25 

    26 /**

    27  *  Provides speaker functionality.

    28  *

    29  */

    30 NONSHARABLE_CLASS( CSPSpeaker ): public CSPDevSound

    31     {

    32 

    33 public:

    34 

    35     static CSPSpeaker* NewL( MCSPDevSoundObserver& aObserver );

    36 

    37     virtual ~CSPSpeaker();

    38 

    39     /** 

    40      * Sets volume.

    41      * @param aVolume Volume.     

    42      */

    43     void SetVolume( TInt aVolume );

    44     

    45     /**

    46      * Gets volume.

    47      * @return Current volume.

    48      */

    49     TInt Volume();

    50 

    51 // from base class MDevSoundObserver

    52 

    53     /**

    54      * From MDevSoundObserver.

    55      * Indication from devsound that stream (speaker) has been activated

    56      * successfully.

    57      */

    58     void BufferToBeFilled( CMMFBuffer* /*aBuffer*/ );

    59 

    60     /**

    61      * From MDevSoundObserver.

    62      * Indication from devsound that activation of stream( speaker)

    63      * failed.

    64      */

    65     void PlayError( TInt aErrorCode );

    66 

    67 private:

    68         

    69     /**

    70      * From CSPDevSound.

    71      * Tries to activate the mic stream.

    72      */

    73     void DoActivateL();

    74 

    75 protected:

    76 

    77     CSPSpeaker( MCSPDevSoundObserver& aObserver );

    78 

    79     void ConstructL();

    80 

    81     };

    82 

    83 #endif // CSPSPEAKER_H