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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#ifndef CDEVCOMMONCONTROL_H
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#define CDEVCOMMONCONTROL_H
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#include "cdevaudiocontrol.h"
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#include <a3f/a3f_trace_utils.h>
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#include <a3f/maudioprocessingunitobserver.h>
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/**
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* CDevCommonControl
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*
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* Common functionality required by:
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* CDevPlayControl
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* CDevRecordControl
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* CDevToneControl
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*
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* @lib mmfdevsoundadaptation.lib
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* @since
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*/
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NONSHARABLE_CLASS(CDevCommonControl) : public CDevAudioControl,
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public MAudioProcessingUnitObserver
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{
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public:
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CDevCommonControl();
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~CDevCommonControl();
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// from CDevAudioControl
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TInt Stop();
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TInt Pause();
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TInt Resume();
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// from MAudioProcessingUnitObserver
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void StateEvent(MAudioStream& aStream, TInt aError, TAudioState aNewState);
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void ProcessingUnitError(MAudioProcessingUnit* aInstance, TInt aError);
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// from MAudioContextObserver
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void ContextEvent(TUid aEvent, TInt aError);
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protected:
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// methods introduced by this class
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virtual void FinishWithError(TInt aError) = 0;
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private:
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// Internal functions which together implement CDevCommonControl::ContextEvent
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void ContextEventUpdateWithoutStateEventNoError();
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void ContextEventUpdateWithoutStateEventButWithError(TInt aError);
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void ContextEventUpdateWithStateEventNoError();
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void ContextEventStateDevSoundAdaptorLoading();
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void ContextEventStateDevSoundAdaptorUnloading();
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void ContextEventStateDevSoundAdaptorStopping();
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void ContextEventStateDevSoundAdaptorUninitializing();
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void ContextEventStateDevSoundAdaptorBeingPreempted();
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void ContextEventPauseResumeSequenceDueToEmptyBuffers(TBool aFlush);
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void ContextEventUpdateWithStateEventAndError(TInt aError);
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void ContextEventUpdateComplete(TInt aError);
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void ContextEventPreEmption(TUid aEvent, TInt aError);
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void ContextEventAbort(TInt aError);
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void ContextEventErrorStateDevSoundAdaptorActivating(TInt aError);
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void ContextEventErrorStateDevSoundAdaptorBeingPreempted();
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void ContextEventAsynchronousPlayCompletion(TInt aError);
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void ContextEventAsynchronousInitializeComplete(TInt aError);
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void ContextEventStopDevSoundNotifications();
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private:
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TBool iBeingPreempted;
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TBool iPreemptionClash;
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};
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#endif // CDEVCOMMONCONTROL_H
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// end of file
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