diff -r 000000000000 -r 1e05558e2206 usbengines/usbwatcher/src/cusbglobalsystemstateobserver.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbengines/usbwatcher/src/cusbglobalsystemstateobserver.cpp	Thu Dec 17 09:14:30 2009 +0200
@@ -0,0 +1,181 @@
+/*
+* Copyright (c) 2007-2009 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:  Subscribe to global system state events
+*
+*/
+
+
+#include <startupdomainpskeys.h> //for global system state
+#include "cusbglobalsystemstateobserver.h"
+#include "cusbwatcher.h"
+
+// ----------------------------------------------------------------------------
+// Two-phase constructor
+// ----------------------------------------------------------------------------
+//
+CUsbGlobalSystemStateObserver* CUsbGlobalSystemStateObserver::NewL(
+        CUsbWatcher& aUsbWatcher )
+    {
+    LOG_FUNC
+
+    CUsbGlobalSystemStateObserver* me = CUsbGlobalSystemStateObserver::NewLC(
+            aUsbWatcher );
+    CleanupStack::Pop();
+    return me;
+    }
+
+// ----------------------------------------------------------------------------
+// Two-phase constructor, instance put in cleanupstack
+// ----------------------------------------------------------------------------
+//
+CUsbGlobalSystemStateObserver* CUsbGlobalSystemStateObserver::NewLC(
+        CUsbWatcher& aUsbWatcher )
+    {
+    LOG_FUNC
+
+    CUsbGlobalSystemStateObserver* me = new ( ELeave )
+            CUsbGlobalSystemStateObserver( aUsbWatcher );
+    CleanupStack::PushL( me );
+    me->ConstructL();
+    return me;
+    }
+
+// ----------------------------------------------------------------------------
+// 2nd Phase Construction
+// ----------------------------------------------------------------------------
+//
+void CUsbGlobalSystemStateObserver::ConstructL()
+    {
+    LOG_FUNC
+
+    User::LeaveIfError( iProperty.Attach( KPSUidStartup,
+            KPSGlobalSystemState ) );
+    }
+
+// ----------------------------------------------------------------------------
+// C++ Constructor
+// ----------------------------------------------------------------------------
+//
+CUsbGlobalSystemStateObserver::CUsbGlobalSystemStateObserver(
+        CUsbWatcher& aUsbWatcher )
+    : CActive( EPriorityNormal )
+    , iUsbWatcher( aUsbWatcher )
+    {
+    LOG_FUNC
+
+    CActiveScheduler::Add( this );
+    }
+
+// ----------------------------------------------------------------------------
+// Destructor
+// ----------------------------------------------------------------------------
+//
+CUsbGlobalSystemStateObserver::~CUsbGlobalSystemStateObserver()
+    {
+    LOG_FUNC
+
+    Cancel();
+    iProperty.Close();
+    }
+
+// ----------------------------------------------------------------------------
+// Return global system state
+// ----------------------------------------------------------------------------
+//
+TInt CUsbGlobalSystemStateObserver::GlobalSystemState()
+    {
+    LOG_FUNC
+
+    TInt state;
+    RProperty::Get( KPSUidStartup, KPSGlobalSystemState, state );
+    return state;
+    }
+
+// ----------------------------------------------------------------------------
+// Start observing the state P&S key
+// ----------------------------------------------------------------------------
+//
+void CUsbGlobalSystemStateObserver::Subscribe()
+    {
+    LOG_FUNC
+
+    if( IsActive() )
+        {
+        LOG( "Already observing" );
+        return; // already observing
+        }
+
+    iProperty.Subscribe( iStatus );
+    SetActive();
+    }
+
+// ----------------------------------------------------------------------------
+// Stop observing the state P&S key
+// ----------------------------------------------------------------------------
+//
+void CUsbGlobalSystemStateObserver::DoCancel()
+    {
+    LOG_FUNC
+
+    iProperty.Cancel();
+    }
+
+// ----------------------------------------------------------------------------
+// Called when the state changes
+// ----------------------------------------------------------------------------
+//
+void CUsbGlobalSystemStateObserver::RunL()
+{
+    LOG_FUNC
+    LOG1( "iStatus = %d", iStatus.Int() );
+
+    Subscribe();
+    TInt systemState = 0;
+    User::LeaveIfError( iProperty.Get( systemState ) );
+    LOG1( "SystemState= %d", systemState );
+
+    if (  ( systemState == ESwStateChargingToNormal )
+       || ( systemState == ESwStateAlarmToNormal )  )
+        {
+        iUsbWatcher.StopPersonality();
+        }
+    else if ( systemState == ESwStateCharging )
+        {
+        //USBWatcher started before charging state
+        iUsbWatcher.StartPersonality();
+        }
+    else if (
+        (systemState == ESwStateNormalRfOn) ||
+        (systemState == ESwStateNormalRfOff) ||
+        (systemState == ESwStateNormalBTSap) )
+        {
+        //after ESwStateChargingToNormal
+        Cancel();
+        iUsbWatcher.StartPersonality();
+        }
+}
+
+// ----------------------------------------------------------------------------
+// Handle RunL leaving
+// ----------------------------------------------------------------------------
+//
+TInt CUsbGlobalSystemStateObserver::RunError( TInt aError )
+    {
+    LOG_FUNC
+
+    LOG1( "aError = %d", aError );
+    return ( KErrNone );
+    }
+
+// End of file