// 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 HCTLCHANNELOBSERVER_H

#define HCTLCHANNELOBSERVER_H

#include <e32base.h>

/** Definition of the HCI transport channel type */

typedef TUint16 THCITransportChannel;	

/** No HCI transport channels available for sending */

static const THCITransportChannel KHCITransportNoChannels		= 0x0000;

/** Command HCI transport channel available for sending */

static const THCITransportChannel KHCITransportCommandChannel	= 0x0001;

/** ACL data HCI transport channel available for sending */

static const THCITransportChannel KHCITransportACLDataChannel	= 0x0002;

/** SCO data HCI transport channel available for sending */

static const THCITransportChannel KHCITransportSCODataChannel	= 0x0004;

/** All HCI transport channels available for sending */

static const THCITransportChannel KHCITransportAllChannels = static_cast<THCITransportChannel>(KHCITransportCommandChannel | 

																							   KHCITransportACLDataChannel | 

																							   KHCITransportSCODataChannel);

/** The UID associated with the MHCTLChannelObserver interface. */

const TInt KHCTLChannelObserverUid = 0x102736EF;

/**

API for observing information regarding the status of a HCTL channel.

This should be implemented by the stack so it can control the multiplexing

of the command and data sent over the HCTL.

*/

class MHCTLChannelObserver

	{

public:

	/**

	Indication that a HCTL channel has been opened.

	@param aChannel A bitmask containing the channels which are now open.

	*/

	virtual void MhcoChannelOpen(THCITransportChannel aChannels) =0;

	/**

	Indication that a HCTL channel has been closed.

	@param aChannel A bitmask containing the channels which are now closed.

	*/

	virtual void MhcoChannelClosed(THCITransportChannel aChannels) =0;

	};

#endif // HCTLCHANNELOBSERVER_H