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

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of the License "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 CUSBOTG_H

 #define CUSBOTG_H

 class CUsbOtgEventWatcher;

 class CRequestSessionWatcher;

 class MUsbRequestSessionObserver

     {

 public:

     virtual void BusRequestL() = 0;

     };

 class ROtgStateChangeNotifier

     {

 public:

     ROtgStateChangeNotifier();

     ~ROtgStateChangeNotifier();

 	void Register(const RMessage2& aMessage);

     void DoNotifyL();

     void DoCancelL();

 private:

 	void CompleteNotifierL(TInt);

 private:

     /** Notification service */

 	RMessage2 iMessage;

     /** Flag to indicate that media change notification is active */

 	TBool iRegistered;

     };

 class CUsbOtg: public CBase,

                public MUsbRequestSessionObserver

     {

 public:

     enum TOtgState {KOtgStateStart,

                     KOtgStateAPlugInserted,

                     KOtgStateSessionOpen,

                     KOtgStateSessionClose};

 public:

 	static CUsbOtg* NewL();

 	~CUsbOtg();

 protected:

 	CUsbOtg();

 	void ConstructL();

 public:

     // MUsbRequestSessionObserver

     void BusRequestL();

     void HandleUsbOtgEvent(RUsbOtgDriver::TOtgEvent aEvent);

     TBool DeviceInserted();

     void NotifyChange(const RMessage2& aMessage);

     void NotifyChangeCancel();

     TInt BusDrop();

 private:

     void StartL();

     void Stop();

 private:

     TOtgState iOtgState;

 	RUsbOtgDriver iUsbOtgDriver;

     CUsbOtgEventWatcher* iOtgEventWatcher;

     CRequestSessionWatcher* iRequestSessionWatcher;

     ROtgStateChangeNotifier iNotifier;

     };

 #endif