sl@0: // Copyright (c) 2001-2009 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: //
sl@0: 
sl@0: #ifndef __MMFBTAUDIOPOLICY_H__
sl@0: #define __MMFBTAUDIOPOLICY_H__
sl@0: 
sl@0: #include <e32base.h>
sl@0: #include <f32file.h>
sl@0: #include "MmfBtAudioPolicyRequest.h"	
sl@0: #include <mmf/server/sounddevice.h>			
sl@0: #include "MdaBtHwInfo.h"
sl@0: #include "MmfBtDevSoundEventHandler.h"
sl@0: #include "mmfstandardcustomcommands.h"
sl@0: #include "mmfcontrollerframeworkbase.h"
sl@0: 
sl@0: /** 
sl@0: Panic category and codes for the AudioPolicy  
sl@0: @internalTechnology
sl@0: */
sl@0: _LIT(KMMFAudioPolicyPanicCategory, "MMFAudioPolicy");
sl@0: enum TMMFAudioPolicyPanicCodes
sl@0: 	{
sl@0: 	EMMFAudioPolicyRequestArrayOverflow
sl@0: 	};
sl@0: 	
sl@0: class CAudioPolicy; // declared here.
sl@0: /******************************************************************************
sl@0: * Class Name:	CAudioPolicy
sl@0: * 
sl@0: * Description:	This class is ultimately implemented by the product team based
sl@0: *				on their requirements for audio behavior in the face of 
sl@0: *				multiple audio requests simultaneously.  The reference 
sl@0: *				implementation is a simple priority scheme.  If a request is 
sl@0: *				a higher priority, it gets played, even if termination of a 
sl@0: *				running request of lower prioirity is required.
sl@0: ******************************************************************************/
sl@0: 
sl@0: class CMMFAudioPolicyServer;
sl@0: 
sl@0: NONSHARABLE_CLASS( CAudioPolicy ): public CBase
sl@0: /**
sl@0: *@internalTechnology
sl@0: */
sl@0: 	{
sl@0: public:
sl@0: 
sl@0: 	IMPORT_C static CAudioPolicy* NewL(CMMFAudioPolicyServer* aAudioPolicyServer);
sl@0: 	void RemoveSessionFromList(CMMFAudioPolicyRequest* aAudioPolicyRequest);
sl@0: 	~CAudioPolicy();
sl@0: 	void MakeRequest(CMMFAudioPolicyRequest* aAudioPolicyRequest);
sl@0: 	void ModifyEntry(TInt aPolicySessionId, CMMFAudioPolicyRequest* aAudioPolicyRequest);
sl@0: 	void RemoveFromList(TInt aPolicySessionId);
sl@0: 	void LaunchRequest();
sl@0: 	CArrayFixFlat<CMMFAudioPolicyRequest>* AudioPolicyRequestArray();
sl@0: 	void DoSendNotification();
sl@0: 	TInt SetNotification(TInt aSessionId,TUid aEventType);
sl@0: 	inline CMdaHwInfo* MdaHwInfo(void) {return iMdaHwInfo;} 
sl@0: protected:
sl@0: 	CAudioPolicy(CMMFAudioPolicyServer* aAudioPolicyServer);
sl@0: private:
sl@0: 	enum {EGranularity=8};
sl@0: 	CArrayFixFlat<CMMFAudioPolicyRequest>* iAudioPolicyRequestArray; 
sl@0: 	TInt iSessionToAlert;
sl@0: 	TInt iSessionToBeLaunched;
sl@0: 	CMMFAudioPolicyServer* iAudioPolicyServer;
sl@0: 	CMdaHwInfo* iMdaHwInfo;
sl@0: 	TMMFAudioPolicyEvent iAudioPolicyEventToLaunch;
sl@0: 	TMMFAudioPolicyEvent iAudioPolicyEvent;
sl@0: 
sl@0: 	void ConstructL();
sl@0: 	TPolicyResponse ProcessRequest(CMMFAudioPolicyRequest* aAudioPolicyRequest);
sl@0: 	TPolicyResponse ComparePriorities(CMMFAudioPolicyRequest* aAudioPolicyRequest/*,TMMFAudioPolicyEvent& aEvent*/);
sl@0: 	void HandlePreferences(CMMFAudioPolicyRequest* aAudioPolicyRequest, TInt aPref, TPolicyResponse& aResponse);
sl@0: 	void SetSessionToAlert(TInt aSessionToAlert, TInt aSessionToBeLaunched, TMMFAudioPolicyEvent::TAudioPolicyEventType aEventType, TMMFAudioPolicyState aState );
sl@0: 	TBool IsRegisteredNotification(TInt aSessionId);
sl@0: 	TBool IsNotified();
sl@0: 	void ResetNotification();
sl@0: 	TInt CheckSessionToNotify();
sl@0: 	};
sl@0: 
sl@0: /**
sl@0: The function panic raises a panic from within the MmfAudioPolicy library
sl@0: @param The argument is a member of the enumeration TMMFAudioPolicyPanicCodes
sl@0: */
sl@0: GLDEF_C void Panic(TMMFAudioPolicyPanicCodes aError);
sl@0: 
sl@0: #endif