/*

* Copyright (c) 2008-2009 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:

* Talks directly to the USB Logical Device Driver (LDD) and 

* watches any state changes

*

*/

/**

 @file

*/

#include "otgstatewatcher.h"

COtgStateWatcher* COtgStateWatcher::NewL(MOtgPropertiesObserver* aObserver)

	{

	COtgStateWatcher* self = new(ELeave) COtgStateWatcher(aObserver);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

COtgStateWatcher::~COtgStateWatcher()

	{

	Cancel();

	iOtgStateProp.Close();

	}

COtgStateWatcher::COtgStateWatcher(MOtgPropertiesObserver* aObserver)

	: CActive(EPriorityStandard)

	, iObserver(aObserver)

	, iOtgState(EUsbOtgStateReset)

	{

	CActiveScheduler::Add(this);

	}

void COtgStateWatcher::ConstructL()

	{

	User::LeaveIfError(iOtgStateProp.Attach(KUidUsbManCategory, KUsbOtgStateProperty));

	iOtgStateProp.Subscribe(iStatus);

	SetActive();

	TInt err = iOtgStateProp.Get((TInt&)iOtgState);

	if (KErrNone != err)

		{

		iOtgState = EUsbOtgStateBPeripheral;

		}

	}

void COtgStateWatcher::DoCancel()

	{

	iOtgStateProp.Cancel();

	}

void COtgStateWatcher::RunL()

	{

	iOtgStateProp.Subscribe(iStatus);

	SetActive();

	TInt err = iOtgStateProp.Get((TInt&)iOtgState);

	if (KErrNone != err)

		{

		iOtgState = EUsbOtgStateBPeripheral;

		}

	iObserver->MpsoOtgStateChangedL(iOtgState);

	}

TUsbOtgState COtgStateWatcher::OtgState() const

	{

	return iOtgState;

	}