/*

* 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 "vbuswatcher.h"

#include <usb/usbshared.h>

CVBusWatcher* CVBusWatcher::NewL(MOtgPropertiesObserver* aObserver)

	{

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

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

CVBusWatcher::~CVBusWatcher()

	{

	Cancel();

	iVBusProp.Close();

	}

CVBusWatcher::CVBusWatcher(MOtgPropertiesObserver* aObserver)

	: CActive(EPriorityStandard)

	, iObserver(aObserver), iVBusState(EFalse)

	{

	CActiveScheduler::Add(this);

	}

void CVBusWatcher::ConstructL()

	{

	User::LeaveIfError(iVBusProp.Attach(KUidUsbManCategory, KUsbOtgVBusPoweredProperty));

	iVBusProp.Subscribe(iStatus);

	SetActive();

	TInt err = iVBusProp.Get(iVBusState);

	if (KErrNone != err)

		{

#ifndef __WINS__

		iVBusState = EFalse;

#else

		iVBusState = ETrue;

#endif

		}

	}

void CVBusWatcher::DoCancel()

	{

	iVBusProp.Cancel();

	}

void CVBusWatcher::RunL()

	{

	iVBusProp.Subscribe(iStatus);

	SetActive();

	TInt err = iVBusProp.Get(iVBusState);

	if (KErrNone == err)

		{

		iObserver->MpsoVBusStateChanged(iVBusState);

		}

	else

		{

#ifndef __WINS__

		iVBusState = EFalse;

#else

		iVBusState = ETrue;

#endif

		iObserver->MpsoVBusStateChanged(iVBusState);

		}

	}

TInt CVBusWatcher::VBusState() const

	{

	return iVBusState;

	}