/*

* 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:

*

*/

#ifndef __LINKSTATENOTIFIER_H__

#define __LINKSTATENOTIFIER_H__

#include <e32base.h> 

class RDevUsbcClient;

const TInt KMaxPacketTypeBulkFS = 64;

const TInt KMaxPacketTypeBulkHS = 512;

const TInt KDefaultMaxPacketTypeBulk = KMaxPacketTypeBulkFS;

class MLinkStateObserver

/**

 * Interface for notifications of link state events.

 */

	{

public:

	virtual void MLSOStateChange(TInt aPacketSize) = 0;

	};

NONSHARABLE_CLASS(CLinkStateNotifier) : public CActive

/**

 * Active object to request link state notifications.

 */

	{

public:

	static CLinkStateNotifier* NewL(MLinkStateObserver& aParent, 

		RDevUsbcClient& aUsb);

	~CLinkStateNotifier();

	void Start();

private: // from CActive

	virtual void DoCancel();

	virtual void RunL();

	virtual TInt RunError(TInt aError);

private:

	CLinkStateNotifier(MLinkStateObserver& aParent, RDevUsbcClient& aUsb);

private:

	void LinkUp();

	void LinkDown();

private: // unowned

	MLinkStateObserver& iParent; ///< Observer

	RDevUsbcClient& iUsb;		///< The Ldd to use

private: // owned

	TUint iUsbState;		///< Bitmask representing the endpoints

	TInt iPacketSize;

	};

#endif // __LINKSTATENOTIFIER_H__