1 /*

     2  * Copyright (c) 2009 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: Telephony Multimedia Service

    15  *

    16  */

    17 

    18 #ifndef CSDOWNLINK_H

    19 #define CSDOWNLINK_H

    20 

    21 #include <glib.h>

    22 #include "tmscsdevsound.h"

    23 

    24 namespace TMS {

    25 

    26 //

    27 class TMSCSPDevSoundObserver;

    28 

    29 /**

    30  *  Provides Downlink functionality.

    31  *

    32  */

    33 NONSHARABLE_CLASS(TMSCSDownlink) : public TMSCSPDevSound

    34     {

    35 public:

    36 

    37     static TMSCSDownlink* NewL(TMSCSPDevSoundObserver& aObserver);

    38 

    39     virtual ~TMSCSDownlink();

    40 

    41     /**

    42      * Sets volume.

    43      * @param aVolume Volume.

    44      */

    45     void SetVolume(gint aVolume);

    46 

    47     /**

    48      * Gets volume.

    49      * @return Current volume.

    50      */

    51     gint Volume();

    52 

    53     /**

    54      * Gets max volume.

    55      * @return Current volume.

    56      */

    57     gint MaxVolume();

    58 

    59     // from base class MDevSoundObserver

    60 

    61     /**

    62      * From MDevSoundObserver.

    63      * Indication from devsound that stream (Downlink) has been activated

    64      * successfully.

    65      */

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

    67 

    68     /**

    69      * From MDevSoundObserver.

    70      * Indication from devsound that activation of stream( Downlink)

    71      * failed.

    72      */

    73     void PlayError(TInt aErrorCode);

    74 

    75 private:

    76 

    77     /**

    78      * From CSPDevSound.

    79      * Tries to activate the mic stream.

    80      */

    81     void DoActivateL();

    82 

    83 protected:

    84 

    85     TMSCSDownlink(TMSCSPDevSoundObserver& aObserver);

    86 

    87     void ConstructL();

    88     };

    89 

    90 } //namespace TMS

    91 

    92 #endif // CSDOWNLINK_H