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/*
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* Copyright (c) 2006-2010 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: DUN USB plugin's listener
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*
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*/
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#include <e32std.h>
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#include "DunUtils.h"
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#include "DunUsbListen.h"
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#include "DunDebug.h"
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const TUint KDunUsbDeviceStateMask = 0x00ff;
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// Two-phased constructor.
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// ---------------------------------------------------------------------------
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//
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CDunUsbListen* CDunUsbListen::NewL( MDunServerCallback* aServer,
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MDunListenCallback* aParent,
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RUsb& aUsbServer )
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{
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CDunUsbListen* self = new (ELeave) CDunUsbListen( aServer,
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aParent,
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aUsbServer );
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CleanupStack::PushL( self );
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self->ConstructL();
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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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// Destructor.
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// ---------------------------------------------------------------------------
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//
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CDunUsbListen::~CDunUsbListen()
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{
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FTRACE(FPrint( _L( "CDunUsbListen::~CDunUsbListen()" ) ));
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ResetData();
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FTRACE(FPrint( _L( "CDunUsbListen::~CDunUsbListen() complete" ) ));
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}
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// ---------------------------------------------------------------------------
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// Resets data to initial values
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// ---------------------------------------------------------------------------
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//
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void CDunUsbListen::ResetData()
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{
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// APIs affecting this:
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// IssueRequestL()
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Stop();
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// Internal
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Initialize();
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}
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// ---------------------------------------------------------------------------
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// IssueRequest to USB server for device state change notifications
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// ---------------------------------------------------------------------------
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//
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TInt CDunUsbListen::IssueRequestL()
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{
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FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL()" )));
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if ( iUsbServer.Handle() == KNullHandle )
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{
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FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL() (iUsbServer) complete" ) ));
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User::Leave( KErrGeneral );
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}
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TUsbDeviceState usbDeviceState;
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User::LeaveIfError( iUsbServer.GetDeviceState(usbDeviceState) );
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FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL() Usb device state = %X" ), usbDeviceState));
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if ( iDeviceState == EUsbDeviceStateUndefined )
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{
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iDeviceState = usbDeviceState;
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}
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// USB device state now set; if configured already, notify parent
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// If not yet configured, start listening
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if ( usbDeviceState == EUsbDeviceStateConfigured )
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{
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FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL() (already exists) complete" ) ));
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return KErrAlreadyExists;
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}
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Activate();
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FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL() complete" ) ));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Stops listening
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// ---------------------------------------------------------------------------
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//
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void CDunUsbListen::Stop()
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{
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FTRACE(FPrint( _L( "CDunUsbListen::Stop()" ) ));
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Cancel();
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iDeviceState = EUsbDeviceStateUndefined;
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iDeviceStatePrev = EUsbDeviceStateUndefined;
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FTRACE(FPrint( _L( "CDunUsbListen::Stop() complete" ) ));
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}
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// ---------------------------------------------------------------------------
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// CDunUsbListen::CDunUsbListen
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// ---------------------------------------------------------------------------
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//
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CDunUsbListen::CDunUsbListen( MDunServerCallback* aServer,
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MDunListenCallback* aParent,
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RUsb& aUsbServer ) :
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CActive( EPriorityStandard ),
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iServer( aServer ),
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iParent( aParent ),
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iUsbServer( aUsbServer )
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{
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Initialize();
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}
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// ---------------------------------------------------------------------------
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// CDunUsbListen::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CDunUsbListen::ConstructL()
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{
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FTRACE(FPrint( _L( "CDunUsbListen::ConstructL()" ) ));
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if ( !iServer || !iParent )
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{
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User::Leave( KErrGeneral );
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}
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CActiveScheduler::Add( this );
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FTRACE(FPrint( _L( "CDunUsbListen::ConstructL() complete" ) ));
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}
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// ---------------------------------------------------------------------------
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// Initializes this class
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// ---------------------------------------------------------------------------
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//
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void CDunUsbListen::Initialize()
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{
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// Don't initialize iServer here (it is set through NewL)
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// Don't initialize iParent here (it is set through NewL)
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// Don't initialize iUsbServer here (it is set through NewL)
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iDeviceState = EUsbDeviceStateUndefined;
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iDeviceStatePrev = EUsbDeviceStateUndefined;
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}
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// ---------------------------------------------------------------------------
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// Activates listening request
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// ---------------------------------------------------------------------------
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//
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TInt CDunUsbListen::Activate()
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{
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FTRACE(FPrint( _L( "CDunUsbListen::Activate()" ) ));
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if ( IsActive() )
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{
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FTRACE(FPrint( _L( "CDunUsbListen::Activate() (not ready) complete" ) ));
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return KErrNotReady;
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}
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iDeviceStatePrev = iDeviceState;
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iUsbServer.DeviceStateNotification( KDunUsbDeviceStateMask,
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iDeviceState,
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iStatus );
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SetActive();
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FTRACE(FPrint( _L( "CDunUsbListen::Activate() complete" ) ));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// From class CActive.
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// Called when read or write operation is ready.
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// ---------------------------------------------------------------------------
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//
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void CDunUsbListen::RunL()
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{
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() iStatus=%d"), iStatus.Int() ));
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if ( iStatus.Int() != KErrNone )
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{
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() (ERROR) complete" )));
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iServer->NotifyPluginCloseRequest( KDunUsbPluginUid, ETrue );
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return;
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}
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() Usb device state =%X, Issue request" ), iDeviceState));
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TDunPluginState parentState = iServer->GetPluginStateByUid( KDunUsbPluginUid );
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TInt retTemp = KErrNone;
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if ( iDeviceState == EUsbDeviceStateConfigured &&
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iDeviceStatePrev != EUsbDeviceStateConfigured &&
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parentState != EDunStateChanneled )
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{
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// USB has been connected&configured and we are in PC Suite mode
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() DeviceState is configured -> open connection" ) ));
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TBool noFreeChans = EFalse;
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// noFreeChans will be omitted (not needed to set to RComm)
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retTemp = iParent->NotifyChannelAllocate( noFreeChans );
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() channel allocation failed!" ) ));
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iServer->NotifyPluginCloseRequest( KDunUsbPluginUid, ETrue );
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return;
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}
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}
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else if ( iDeviceState < EUsbDeviceStateConfigured &&
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iDeviceStatePrev >= EUsbDeviceStateConfigured &&
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parentState == EDunStateChanneled )
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{
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() DeviceState is not configured -> close connection" ) ));
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retTemp = iParent->NotifyChannelFree();
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() channel free failed!" ) ));
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iServer->NotifyPluginCloseRequest( KDunUsbPluginUid, ETrue );
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return;
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}
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}
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// Start listening again
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Activate();
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() complete" )));
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}
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// ---------------------------------------------------------------------------
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// From class CActive.
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// Cancel current activity.
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// ---------------------------------------------------------------------------
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//
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void CDunUsbListen::DoCancel()
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{
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FTRACE(FPrint( _L( "CDunUsbListen::DoCancel()" )));
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iUsbServer.DeviceStateNotificationCancel();
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FTRACE(FPrint( _L( "CDunUsbListen::DoCancel() complete" )));
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}
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