1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/devsound/a3fdevsound/src/devsoundadaptor/cdevcommoncontrol.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,88 @@
     1.4 +/*
     1.5 +* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description:
    1.18 +*
    1.19 +*/
    1.20 +
    1.21 +#ifndef CDEVCOMMONCONTROL_H
    1.22 +#define CDEVCOMMONCONTROL_H
    1.23 +
    1.24 +#include "cdevaudiocontrol.h"
    1.25 +#include <a3f/a3f_trace_utils.h>
    1.26 +#include <a3f/maudioprocessingunitobserver.h>
    1.27 +
    1.28 +/**
    1.29 + * CDevCommonControl
    1.30 + *
    1.31 + * Common functionality required by:
    1.32 + *      CDevPlayControl
    1.33 + *      CDevRecordControl
    1.34 + *      CDevToneControl
    1.35 + *
    1.36 + * @lib mmfdevsoundadaptation.lib
    1.37 + * @since
    1.38 + */
    1.39 +
    1.40 +NONSHARABLE_CLASS(CDevCommonControl) :  public CDevAudioControl,  
    1.41 +                                        public MAudioProcessingUnitObserver
    1.42 +	{
    1.43 +public:
    1.44 +    CDevCommonControl();
    1.45 +    ~CDevCommonControl();
    1.46 +    
    1.47 +    // from CDevAudioControl
    1.48 +    TInt Stop();
    1.49 +    TInt Pause();
    1.50 +    TInt Resume();
    1.51 +    
    1.52 +    // from MAudioProcessingUnitObserver
    1.53 +    void StateEvent(MAudioStream& aStream, TInt aError, TAudioState aNewState);
    1.54 +    void ProcessingUnitError(MAudioProcessingUnit* aInstance, TInt aError);
    1.55 +    
    1.56 +    // from MAudioContextObserver
    1.57 +    void ContextEvent(TUid aEvent, TInt aError);
    1.58 +    
    1.59 +protected:
    1.60 +    // methods introduced by this class
    1.61 +    virtual void FinishWithError(TInt aError) = 0;
    1.62 +    
    1.63 +private:
    1.64 +    //  Internal functions which together implement CDevCommonControl::ContextEvent
    1.65 +    void ContextEventUpdateWithoutStateEventNoError();
    1.66 +    void ContextEventUpdateWithoutStateEventButWithError(TInt aError);
    1.67 +    void ContextEventUpdateWithStateEventNoError();
    1.68 +    void ContextEventStateDevSoundAdaptorLoading(); 
    1.69 +    void ContextEventStateDevSoundAdaptorUnloading(); 
    1.70 +    void ContextEventStateDevSoundAdaptorStopping();
    1.71 +    void ContextEventStateDevSoundAdaptorUninitializing();
    1.72 +    void ContextEventStateDevSoundAdaptorBeingPreempted();
    1.73 +    void ContextEventPauseResumeSequenceDueToEmptyBuffers(TBool aFlush);
    1.74 +    void ContextEventUpdateWithStateEventAndError(TInt aError);
    1.75 +    void ContextEventUpdateComplete(TInt aError);
    1.76 +    void ContextEventPreEmption(TUid aEvent, TInt aError);
    1.77 +    void ContextEventAbort(TInt aError);
    1.78 +    void ContextEventErrorStateDevSoundAdaptorActivating(TInt aError);
    1.79 +    void ContextEventErrorStateDevSoundAdaptorBeingPreempted();
    1.80 +    void ContextEventAsynchronousPlayCompletion(TInt aError);
    1.81 +    void ContextEventAsynchronousInitializeComplete(TInt aError);
    1.82 +    void ContextEventStopDevSoundNotifications();
    1.83 +    
    1.84 +private:
    1.85 +    TBool iBeingPreempted;
    1.86 +    TBool iPreemptionClash;
    1.87 +	};
    1.88 +
    1.89 +#endif // CDEVCOMMONCONTROL_H
    1.90 +
    1.91 +// end of file