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 CS_UPLINK_H

    19 #define CS_UPLINK_H

    20 

    21 #include <glib.h>

    22 #include "cspdevsound.h"

    23 

    24 namespace TMS {

    25 

    26 /**

    27  *  Provides uplink functionality.

    28  *

    29  */

    30 NONSHARABLE_CLASS(TMSCSUplink) : public TMSCSPDevSound

    31     {

    32 public:

    33 

    34     static TMSCSUplink* NewL(TMSCSPDevSoundObserver& aObserver);

    35 

    36     virtual ~TMSCSUplink();

    37 

    38     /**

    39      * Determines mic mute state.

    40      *

    41      * @return ETrue - mic is muted, EFalse - mic is not muted.

    42      */

    43     TBool IsMuted();

    44 

    45     /**

    46      * Set mic muted.

    47      */

    48     void SetMuted();

    49 

    50     /**

    51      * Set mic unmuted.

    52      */

    53     void SetUnmuted();

    54 

    55     /**

    56      * Set mic gain.

    57      */

    58     void SetGain(gint aGain);

    59 

    60     /**

    61      * Get mic muted.

    62      */

    63     gint Gain();

    64 

    65     /**

    66      * Get max gain.

    67      */

    68     gint MaxGain();

    69 

    70     // from base class MDevSoundObserver

    71 

    72     /**

    73      * From MDevSoundObserver

    74      * Notification from Devsound that stream (mic) is

    75      * activated successfully.

    76      */

    77     void BufferToBeEmptied(CMMFBuffer* aBuffer);

    78 

    79     /**

    80      * From MDevSoundObserver

    81      * Notification from devsound that downstream(mic) activation

    82      * feiled.

    83      */

    84     void RecordError(TInt aError);

    85 

    86 private:

    87 

    88     // from base class MCSPDevSound

    89 

    90     /**

    91      * From MCSPDevSound.

    92      * Tries to activate the mic stream.

    93      */

    94     void DoActivateL();

    95 

    96 protected:

    97 

    98     TMSCSUplink(TMSCSPDevSoundObserver& aObserver);

    99     void ConstructL();

   100     };

   101 

   102 } //namespace TMS

   103 

   104 #endif // CSUplink_H