mmappcomponents/harvester/server/src/mpxusbeventhandler.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 31 Aug 2010 15:41:40 +0300
branchRCL_3
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parent 17 6f9f6e99a23e
child 25 63223d4fd956
permissions -rw-r--r--
Revision: 201033 Kit: 201035
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/*
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Monitors for USB events
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*
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*/
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#include <e32base.h>
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#include <f32file.h>
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#include <e32property.h>
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#include <driveinfo.h>
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#include <mpxpskeywatcher.h>
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#include <coreapplicationuisdomainpskeys.h>
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#include <UsbWatcherInternalPSKeys.h>
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#include <usbpersonalityids.h>
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#include <mtpprivatepskeys.h>
0
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#include <mpxlog.h>
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#include "mpxusbeventhandler.h"
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// CONSTANTS
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const TUint KUsbAllStates = 0xFFFFFFFF;
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// ---------------------------------------------------------------------------
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// Default Constructor
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// ---------------------------------------------------------------------------
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//
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CMPXUsbEventHandler::CMPXUsbEventHandler( MMPXSystemEventObserver& aObserver ) :
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                                          CActive( EPriorityStandard ),
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                                          iWasMtp  ( EFalse ),
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                                          iObserver( aObserver ),
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                                          iUsbManConnected( EFalse )
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    {
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    CActiveScheduler::Add( this );
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    }
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// ---------------------------------------------------------------------------
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// 2nd Phase Constructor
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// ---------------------------------------------------------------------------
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//
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void CMPXUsbEventHandler::ConstructL()
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    {
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    MPX_DEBUG1(_L("CMPXUsbEventHandler::ConstructL <---"));
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    iPSKeyWatcher = CMPXPSKeyWatcher::NewL( KPSUidUsbWatcher,
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                                            KUsbWatcherSelectedPersonality,
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                                            this );
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    //for checking MTP status key whether a client has started
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    iMTPKeyWatcher = CMPXPSKeyWatcher::NewL( KMtpPSUid, 
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                                             KMtpPSStatus,
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                                             this );
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    // Connect to usbman
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    ConnectUsbMan();
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    MPX_DEBUG1(_L("CMPXUsbEventHandler::ConstructL --->"));
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    }
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// ---------------------------------------------------------------------------
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// Two Phased Constructor
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// ---------------------------------------------------------------------------
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//
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CMPXUsbEventHandler* CMPXUsbEventHandler::NewL
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                                        ( MMPXSystemEventObserver& aObserver )
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    {
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    CMPXUsbEventHandler* self = CMPXUsbEventHandler::NewLC( aObserver );
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    CleanupStack::Pop( self );
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// Two Phased Constructor
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// ---------------------------------------------------------------------------
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//
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CMPXUsbEventHandler* CMPXUsbEventHandler::NewLC
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                                        ( MMPXSystemEventObserver& aObserver )
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    {
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    CMPXUsbEventHandler* self = new( ELeave ) CMPXUsbEventHandler( aObserver);
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// Destructor
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// ---------------------------------------------------------------------------
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//
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CMPXUsbEventHandler::~CMPXUsbEventHandler()
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    {
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    Cancel();
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    if ( iUsbManConnected )
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        {
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        iUsbMan.Close();
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        }
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    delete iPSKeyWatcher;
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    delete iMTPKeyWatcher;
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    }
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// ---------------------------------------------------------------------------
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// Poll for any ongoing USB / MTP event
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// ---------------------------------------------------------------------------
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//
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void CMPXUsbEventHandler::PollStatus()
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    {
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    TInt value;
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    iPSKeyWatcher->GetValue( value );
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    if( (value==KUsbPersonalityIdMS) ||
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        (value==KUsbPersonalityIdMTP) ||
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        (value==KUsbPersonalityIdPCSuiteMTP) )
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        {
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        HandlePSEvent( TUid::Uid(0), 0 );
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        }
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    }
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// ---------------------------------------------------------------------------
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// Handle the PS key event
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// ---------------------------------------------------------------------------
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//
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void CMPXUsbEventHandler::HandlePSEvent( TUid aUid, TInt aKey )
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    {
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    TRAP_IGNORE( DoHandlePSEventL(aUid,aKey) );
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    }
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// ---------------------------------------------------------------------------
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// Handle the PS key event
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// ---------------------------------------------------------------------------
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//
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void CMPXUsbEventHandler::DoHandlePSEventL( TUid /*aUid*/, TInt /*aKey*/ )
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    {
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    MPX_FUNC("CMPXUsbEventHandler::DoHandlePSEvent()");
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    if ( !iUsbManConnected )
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        {
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        ConnectUsbMan();
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        }
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    // Use the default MMC drive
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    TInt removableDrive( EDriveE );
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    User::LeaveIfError( DriveInfo::GetDefaultDrive(
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        DriveInfo::EDefaultRemovableMassStorage,
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        removableDrive ) );
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    // Handle the Key event
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    TInt value;
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    iPSKeyWatcher->GetValue( value );
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    // Determine if we are currently in MTP / Mass Storage mode
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    //
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    MPX_DEBUG2("CMPXUsbEventHandler::DoHandlePSEvent -- get usb value %i", value);
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	MPX_DEBUG2("CMPXUsbEventHandler::DoHandlePSEvent -iState=%d", iState);
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    if( (value == KUsbPersonalityIdMS) && 
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        ( iDeviceState == EUsbDeviceStateAddress ||
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          iDeviceState == EUsbDeviceStateConfigured ) )
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        {
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        // Switch mode
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        if( iState == KUsbPersonalityIdMTP )
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            {
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            MPX_DEBUG1("CMPXUsbEventHandler::DoHandlePSEvent - MTP End");
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            iObserver.HandleSystemEventL( EUSBMTPEndEvent, removableDrive );
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            }
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        MPX_DEBUG1("CMPXUsbEventHandler::DoHandlePSEvent - USB Start");
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        removableDrive = -1;
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        // Notify the state change (may happen more than once)
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        iObserver.HandleSystemEventL( EUSBMassStorageStartEvent, removableDrive );
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        iState = KUsbPersonalityIdMS;
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        }
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    else if( ( value == KUsbPersonalityIdMTP || value == KUsbPersonalityIdPCSuiteMTP ) &&
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             ( iDeviceState == EUsbDeviceStateAddress || iDeviceState == EUsbDeviceStateConfigured ) )
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        {
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        if( iState == KUsbPersonalityIdMS )
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            {
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            MPX_DEBUG1("CMPXUsbEventHandler::DoHandlePSEvent - USB End");
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            iObserver.HandleSystemEventL( EUSBMassStorageEndEvent, removableDrive );
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            }
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        iMTPKeyWatcher->GetValue(value);
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        MPX_DEBUG2("CMPXUsbEventHandler::DoHandlePSEvent -- get MTP value %i", value);
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   191
		
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        if (value == EMtpPSStatusActive)
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            {
24
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            MPX_DEBUG1("CMPXUsbEventHandler::DoHandlePSEvent - MTP Start");
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            iObserver.HandleSystemEventL( EUSBMTPStartEvent, removableDrive );
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            iState = KUsbPersonalityIdMTP;
0
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            }
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        else if( value != EMtpPSStatusReadyToSync )
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            {
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            MPX_DEBUG1("CMPXUsbEventHandler::DoHandlePSEvent - MTP Not Active");
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            iObserver.HandleSystemEventL( EUSBMTPNotActiveEvent, removableDrive );
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            iState = KUsbPersonalityIdMTP;
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            }
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        }
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    // Make sure MTP and MS flags are OFF
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    //
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    else if( value != KUsbPersonalityIdMTP &&
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             value != KUsbPersonalityIdMS &&
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             value != KUsbPersonalityIdPCSuiteMTP )
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        {
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        // Signal end of event
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        if( iState == KUsbPersonalityIdMS )
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            {
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            MPX_DEBUG1("CMPXUsbEventHandler::DoHandlePSEvent - USB End");
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            iObserver.HandleSystemEventL( EUSBMassStorageEndEvent, removableDrive );
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            }
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        else if( iState == KUsbPersonalityIdMTP )
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            {
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            MPX_DEBUG1("CMPXUsbEventHandler::DoHandlePSEvent - MTP End");
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            iObserver.HandleSystemEventL( EUSBMTPEndEvent, removableDrive );
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parents:
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   221
            }
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        iState = KUsbWatcherSelectedPersonalityNone;
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        }
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    }
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// ---------------------------------------------------------------------------
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// CMPXUsbEventHandler::RunL
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// ---------------------------------------------------------------------------
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//
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void CMPXUsbEventHandler::RunL()
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    {
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    MPX_FUNC("CMPXUsbEventHandler::RunL()");
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    TInt status( iStatus.Int() );
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    MPX_DEBUG2("CMPXUsbEventHandler::RunL status=%d", status );
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    if ( status != KErrCancel && status != KErrServerTerminated )
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        {
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        iUsbMan.DeviceStateNotification( KUsbAllStates, iDeviceState, iStatus );
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        SetActive();
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        }
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    if ( status == KErrNone )
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        {
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        MPX_DEBUG2("CMPXUsbEventHandler::RunL - DeviceState = %d", iDeviceState);
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        HandlePSEvent( TUid::Uid(0), 0 );
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        }
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    }
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// ---------------------------------------------------------------------------
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// CMPXUsbEventHandler::DoCancel
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// ---------------------------------------------------------------------------
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//
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void CMPXUsbEventHandler::DoCancel()
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    {
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    MPX_FUNC("CMPXUsbEventHandler::DoCancel()");
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    if ( iUsbManConnected )
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        {
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        iUsbMan.DeviceStateNotificationCancel();
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        }
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    }
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// ---------------------------------------------------------------------------
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// CMPXUsbEventHandler::ConnectUsbMan
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// If error, default iDeviceState to EUsbDeviceStateConfigured so this would not
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// block usb event mode change.
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// ---------------------------------------------------------------------------
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void CMPXUsbEventHandler::ConnectUsbMan()
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    {
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    MPX_FUNC("CMPXUsbEventHandler::ConnectUsbMan()");
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    if ( iUsbMan.Connect() == KErrNone )
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        {
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        iUsbManConnected = ETrue;
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        // get device state
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        TInt err = iUsbMan.GetDeviceState( iDeviceState );
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        if ( err )
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            {
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            iDeviceState = EUsbDeviceStateUndefined;
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            }
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        // start active object
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        if ( !IsActive() )
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            {
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            iUsbMan.DeviceStateNotification( KUsbAllStates, iDeviceState, iStatus );
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            SetActive();
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            }
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        }
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    else
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        {
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        iDeviceState = EUsbDeviceStateConfigured;
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        }
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    }
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// END OF FILE
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