sl@0: // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // mmfhwdeviceadapter.h
sl@0: // 
sl@0: //
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @publishedPartner
sl@0:  @prototype
sl@0:  @see CMMFHwDevice
sl@0:  @see MMdfInputPortObserver
sl@0:  @see MMdfOutputPortObserver
sl@0:  @see MMdfProcessingUnitObserver
sl@0:  @see MMdfHwDeviceSetup
sl@0: */
sl@0: 
sl@0: #ifndef HWDEVICEADAPTER_H
sl@0: #define HWDEVICEADAPTER_H
sl@0: 
sl@0: #include <mdf/mdfinputport.h>
sl@0: #include <mdf/mdfoutputport.h>
sl@0: #include <mdf/mdfprocessingunit.h>
sl@0: #include <mdf/mdfpuloader.h>
sl@0: #include <mmf/server/mmfhwdevice.h>
sl@0: #include <mmf/server/mmfdatabuffer.h>
sl@0: #include <mmf/server/mmfhwdevicesetup.h>
sl@0: #include <mmf/common/mmfutilities.h>
sl@0: 
sl@0: class CMMFBuffer;
sl@0: 
sl@0: /*
sl@0: Hardware Device Adapter class that uses Processing Units (and their associated Ports) in
sl@0: order to decode and encode audio data.
sl@0: */
sl@0: class CMdfHwDeviceAdapter : public CMMFHwDevice,
sl@0: 				    		public MMdfInputPortObserver,
sl@0: 				    		public MMdfOutputPortObserver,
sl@0: 				    		public MMdfProcessingUnitObserver,
sl@0: 				    		public MMdfHwDeviceSetup
sl@0: 	{
sl@0: public:	
sl@0: 	/*
sl@0: 	The current state of the Hardware Device Adapter.
sl@0: 	*/
sl@0: 	enum THwDevAdapterState
sl@0: 		{
sl@0: 		/*
sl@0: 		The PULoader has been loaded.
sl@0: 		*/
sl@0: 		EProcessingUnitLoaderLoaded,
sl@0: 		/*
sl@0: 		The Processing Units have been loaded.
sl@0: 		*/
sl@0: 		EProcessingUnitLoaded,
sl@0: 		/*
sl@0: 		The Processing Units are currently being initialised.
sl@0: 		*/
sl@0: 		EProcessingUnitInitializing,
sl@0: 		/*
sl@0: 		The Processing Units are currently in the idle state.
sl@0: 		*/
sl@0: 		EProcessingUnitIdle,
sl@0: 		/*
sl@0: 		The Processing Units are currently in the executing state.
sl@0: 		*/
sl@0: 		EProcessingUnitExecuting,
sl@0: 		/*
sl@0: 		The Processing Units are currently in the paused state.
sl@0: 		*/
sl@0: 		EProcessingUnitPaused		
sl@0: 		};	
sl@0: 	
sl@0: public:
sl@0: 	static CMdfHwDeviceAdapter* NewL();
sl@0: 	
sl@0: 	// from CMMFHwDevice
sl@0: 	TInt Start(TDeviceFunc aFuncCmd, TDeviceFlow aFlowCmd);
sl@0: 	TInt Stop();
sl@0: 	TInt Pause();
sl@0: 	TInt Init(THwDeviceInitParams& aDevInfo);
sl@0: 	TAny* CustomInterface(TUid aInterfaceId);
sl@0: 	TInt ThisHwBufferFilled(CMMFBuffer& aFillBufferPtr);
sl@0: 	TInt ThisHwBufferEmptied(CMMFBuffer& aEmptyBufferPtr);
sl@0: 	TInt SetConfig(TTaskConfig& aConfig);
sl@0: 	TInt StopAndDeleteCodec();
sl@0: 	TInt DeleteCodec();	
sl@0: 	~CMdfHwDeviceAdapter();
sl@0: 	
sl@0: 	// from MMdfInputPortObserver
sl@0: 	void MipoWriteDataComplete(const MMdfInputPort* aPu, CMMFBuffer* aBuffer, TInt aErrorCode);
sl@0: 	void MipoDisconnectTunnelComplete(const MMdfInputPort* aPu, TInt aErrorCode);
sl@0: 	void MipoRestartTunnelComplete(const MMdfInputPort* aPu, TInt aErrorCode);
sl@0: 	
sl@0: 	// from MMdfOutputPortObserver
sl@0: 	void MopoReadDataComplete(const MMdfOutputPort* aPu, CMMFBuffer* aBuffer, TInt aErrorCode);
sl@0: 	void MopoDisconnectTunnelComplete(const MMdfOutputPort* aPu, TInt aErrorCode);
sl@0: 	void MopoRestartTunnelComplete(const MMdfOutputPort* aPu, TInt aErrorCode);
sl@0: 	
sl@0: 	// from MMdfProcessingUnitObserver
sl@0: 	void InitializeComplete(const CMdfProcessingUnit* aPu, TInt aErrorCode);
sl@0: 	void ExecuteComplete(const CMdfProcessingUnit* aPu, TInt aErrorCode);
sl@0: 	
sl@0: 	// from MMdfHwDeviceSetup	
sl@0: 	void SetDataTypesL(TFourCC aSrcType, TFourCC aDestType);
sl@0: 	
sl@0: 	// CMdfHwDeviceAdapter
sl@0: 	void GetState(THwDevAdapterState& aState) const;
sl@0: 	
sl@0: protected:
sl@0: 	/*
sl@0: 	Hardware Device Adapter panics raised as a result of a programming error.
sl@0: 	*/	
sl@0: 	enum THwDeviceAdapterPanics
sl@0: 		{
sl@0: 		/*
sl@0: 		Raised when the Codec Processing Unit has not been initialised.
sl@0: 		@see CMdfHwDeviceAdapter::CustomInterface
sl@0: 		@see CMdfHwDeviceAdapter::SetDataTypesL
sl@0: 		*/
sl@0: 		EPanicCodecNotSet
sl@0: 		};	
sl@0: 	
sl@0: private:
sl@0: 	CMdfHwDeviceAdapter();
sl@0: 	void ConstructL();
sl@0: 	TInt CreateBuffers();
sl@0: 	TInt StartEncode();
sl@0: 	TInt StartDecode();
sl@0: 	TInt InitializeEncode();
sl@0: 	TInt InitializeDecode();
sl@0: 	TInt StartExecuting();
sl@0: 	void StopHwDevice(TInt error);
sl@0: private:
sl@0: 	enum TPUType
sl@0: 		{
sl@0: 		EPcmPu,
sl@0: 		ESourceSinkPu
sl@0: 		};
sl@0: 	CMdfPuLoader* iPuLoader;
sl@0: 	TUid iPuLoaderDtorKey;
sl@0: 	MMdfInputPort* iCodecInputPort;
sl@0: 	MMdfOutputPort* iCodecOutputPort;
sl@0: 	MMdfInputPort* iSinkInputPort;
sl@0: 	MMdfOutputPort* iSourceOutputPort;
sl@0: 	CMdfProcessingUnit* iCodecPU;
sl@0: 	CMdfProcessingUnit* iAudioDevicePU;
sl@0: 	THwDevAdapterState iState;
sl@0: 	TBool iPCMPUCallbackComplete;
sl@0: 	TBool iSourceSinkPUCallbackComplete;
sl@0: 	TBool iSourceSinkPuMopoStopCompleted;
sl@0: 	TBool iPCMPuMopoStopCompleted;
sl@0: 	TBool iPCMPuMipoStopCompleted;
sl@0: 	TBool iStopping;
sl@0: 	TInt iInitError;
sl@0: 	TInt iExecuteError;
sl@0: 	CMMFBuffer* iInputBuffer;
sl@0: 	CMMFBuffer* iOutputBuffer;
sl@0: 	TInt iInputPortBufferData;	
sl@0: 	TInt iOutputPortBufferData;
sl@0: 	CActiveSchedulerWait* iActiveWait;
sl@0: 	TDeviceFunc iFuncCmd;
sl@0: 	TFourCC iFirstFourCC;
sl@0: 	TFourCC iSecondFourCC;
sl@0: 	};
sl@0: 	
sl@0: #endif // HWDEVICEADAPTER_H