usbmgmt/usbmgr/usbman/chargingplugin/src/vbuswatcher.cpp
changeset 0 c9bc50fca66e
child 15 f92a4f87e424
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/usbman/chargingplugin/src/vbuswatcher.cpp	Tue Feb 02 02:02:59 2010 +0200
@@ -0,0 +1,95 @@
+/*
+* 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;
+	}