// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

/**

 @file

 @publishedPartner

 @released

*/

#ifndef CONTROLLERSTATEOBSERVER_H

#define CONTROLLERSTATEOBSERVER_H

#include <bluetooth/hci/hcitypes.h>

/**

Interface for receiving controller state change events.

Power state and reset events.

*/

class MControllerStateObserver

	{

public:

	enum TControllerChangeType

		/**

		This is primarily to inform the stack what it needs to do. 

		May also be used elsewhere within the HCI framework if required.

		*/

		{

		EBTNonFatalChange, /*!< No state changes in layers above required as a result of function call. */

		EBTFatalChange, /*!< State changes may be required in layers above required as a result of function call. */

		};

	/**

	Called to signal that a change in power state has occurred.

	@param aError Any error condition that has occurred.

	@param aChangeType The impact on the receiver of the call.

	@param aState The new power state (that has just been entered).

	*/

	virtual void McsoProcessPowerChange(TInt aError, TControllerChangeType aChangeType, TBTPowerState aState) = 0;

	/**

	Called to signal that the hard reset process has reached a new state.

	@param aError Any error condition that has occurred.

	@param aChangeType The impact on the receiver of the call.

	@param aState The new hard reset state (that has just been entered).

	*/

	virtual void McsoProcessHardResetPhaseChange(TInt aError, TControllerChangeType aChangeType, TBTHardResetState aState) = 0;

	};

#endif // CONTROLLERSTATEOBSERVER_H