1 /*

     2  * Copyright (c) 2010 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: Starts and stops audio streams.

    15  *

    16  */

    17 

    18 #ifndef TMSHandler_H

    19 #define TMSHandler_H

    20 

    21 #include <e32base.h>

    22 #include "mcsptimerobserver.h"

    23 #include <tms.h>

    24 #include <tmsstreamobsrvr.h>

    25 

    26 namespace TMS {

    27 //FORWARD DECLARATIONS

    28 class TMSFactory;

    29 class TMSCall;

    30 class TMSStream;

    31 class TMSSource;

    32 class TMSSink;

    33 } //namespace TMS

    34 

    35 using namespace TMS;

    36 

    37 //FORWARD DECLARATIONS

    38 class CSPTimer;

    39 

    40 /**

    41  *  Starts and stops TMS audio streams.

    42  *  If the activation fails then there is a retry timer which

    43  *  will try the activation later.

    44  */

    45 NONSHARABLE_CLASS(TmsHandler) : public CBase,

    46                                 public MCSPTimerObserver,

    47                                 public TMSStreamObserver

    48     {

    49 public:

    50 

    51     /**

    52      * Two-phased constructing.

    53      */

    54     static TmsHandler* NewL();

    55 

    56     /**

    57      * Two-phased constructing.

    58      */

    59     static TmsHandler* NewLC();

    60 

    61     /**

    62      * C++ default destructor.

    63      */

    64     virtual ~TmsHandler();

    65 

    66     /**

    67      * Starts audio streams ie inits mic and speaker.

    68      */

    69     void StartStreams();

    70 

    71     /**

    72      * Stops audio streams ie shuts down mic and speaker.

    73      */

    74     void StopStreams();

    75 

    76     /**

    77      * From MCSPTimerObserver.

    78      * Notify from CSPTimer that timeout passed.

    79      */

    80     void TimerEvent();

    81 

    82 protected:

    83     // Functions from base classes

    84 

    85     // From TMSStreamObserver

    86     void TMSStreamEvent(const TMSStream& stream, TMSSignalEvent event);

    87 

    88 private:

    89 

    90     /**

    91      * C++ default constructor.

    92      */

    93     TmsHandler();

    94 

    95     void ConstructL();

    96 

    97     static TInt TimerCallBack(TAny* aThisPtr);

    98 

    99     void AudioStreamsStarted();

   100 

   101     void StartTimer();

   102 

   103     void StartMicAndSpeaker();

   104 

   105     TBool IsMicAndSpeakerStarted();

   106 

   107     gint CreateTMSCallControl();

   108     gint CreateFactory();

   109     gint CreateCall();

   110 

   111     gint CreateUplink();

   112     gint CreateDownlink();

   113     gint OpenUplink();

   114     gint OpenDownlink();

   115 

   116     gint CreateModemSource();

   117     gint AddModemSourceToStream();

   118     gint CreateModemSink();

   119     gint AddModemSinkToStream();

   120     gint CreateMicSource();

   121     gint AddMicSourceToStream();

   122     gint CreateSpeakerSink();

   123     gint AddSpeakerSinkToStream();

   124 

   125 private:

   126     // data

   127 

   128     /**

   129      * Timer for retrying the activation of streams (mic & speaker) if

   130      * there was a failure in activation.

   131      * Own.

   132      */

   133     CSPTimer* iTimer;

   134 

   135     /**

   136      * Timeout value used with timer. Timeout value doubles every retry to

   137      * activate the streams.

   138      */

   139     TInt iTimeout;

   140 

   141     TMSFactory* iFactory;

   142     TMSCall* iTmsCall;

   143     TMSCallType iCallType;

   144     TMSStream* iTmsDnlink;

   145     TMSStream* iTmsUplink;

   146     TMSSource* iTmsMicSource;

   147     TMSSource* iTmsModemSource;

   148     TMSSink* iTmsSpeakerSink;

   149     TMSSink* iTmsModemSink;

   150     TBool iUplinkStarted;

   151     TBool iDnlinkStarted;

   152     };

   153 

   154 #endif // TMSHANDLER_H