--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/localconnectivityservice/dun/plugins/src/usb/DunUsbListen.cpp Mon Jan 18 21:03:15 2010 +0200
@@ -0,0 +1,259 @@
+/*
+* Copyright (c) 2006-2008 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: DUN USB plugin's listener
+*
+*/
+
+
+#include <e32std.h>
+#include "DunUtils.h"
+#include "DunUsbListen.h"
+#include "DunDebug.h"
+
+const TUint KDunUsbDeviceStateMask = 0x00ff;
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CDunUsbListen* CDunUsbListen::NewL( MDunServerCallback* aServer,
+ MDunListenCallback* aParent,
+ RUsb& aUsbServer )
+ {
+ CDunUsbListen* self = new (ELeave) CDunUsbListen( aServer,
+ aParent,
+ aUsbServer );
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+// ---------------------------------------------------------------------------
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+CDunUsbListen::~CDunUsbListen()
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::~CDunUsbListen()" ) ));
+ ResetData();
+ FTRACE(FPrint( _L( "CDunUsbListen::~CDunUsbListen() complete" ) ));
+ }
+
+// ---------------------------------------------------------------------------
+// Resets data to initial values
+// ---------------------------------------------------------------------------
+//
+void CDunUsbListen::ResetData()
+ {
+ // APIs affecting this:
+ // IssueRequestL()
+ Stop();
+ // Internal
+ Initialize();
+ }
+
+// ---------------------------------------------------------------------------
+// IssueRequest to USB server for device state change notifications
+// ---------------------------------------------------------------------------
+//
+TInt CDunUsbListen::IssueRequestL()
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL()" )));
+
+ if ( iUsbServer.Handle() == KNullHandle )
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL() (iUsbServer) complete" ) ));
+ User::Leave( KErrGeneral );
+ }
+
+ TUsbDeviceState usbDeviceState;
+ User::LeaveIfError( iUsbServer.GetDeviceState(usbDeviceState) );
+ FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL() Usb device state = %X" ), usbDeviceState));
+ if ( iDeviceState == EUsbDeviceStateUndefined )
+ {
+ iDeviceState = usbDeviceState;
+ }
+
+ // USB device state now set; if configured already, notify parent
+ // If not yet configured, start listening
+
+ if ( usbDeviceState == EUsbDeviceStateConfigured )
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL() (already exists) complete" ) ));
+ return KErrAlreadyExists;
+ }
+
+ Activate();
+
+ FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL() complete" ) ));
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// Stops listening
+// ---------------------------------------------------------------------------
+//
+TInt CDunUsbListen::Stop()
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::Stop()" ) ));
+ if ( iListenState != EUsbListenStateListening )
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::Stop() (not ready) complete" ) ));
+ return KErrNotReady;
+ }
+ iUsbServer.DeviceStateNotificationCancel();
+ Cancel();
+ iListenState = EUsbListenStateIdle;
+ iDeviceState = EUsbDeviceStateUndefined;
+ iDeviceStatePrev = EUsbDeviceStateUndefined;
+ FTRACE(FPrint( _L( "CDunUsbListen::Stop() complete" ) ));
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// CDunUsbListen::CDunUsbListen
+// ---------------------------------------------------------------------------
+//
+CDunUsbListen::CDunUsbListen( MDunServerCallback* aServer,
+ MDunListenCallback* aParent,
+ RUsb& aUsbServer ) :
+ CActive( EPriorityStandard ),
+ iServer( aServer ),
+ iParent( aParent ),
+ iUsbServer( aUsbServer )
+ {
+ Initialize();
+ }
+
+// ---------------------------------------------------------------------------
+// CDunUsbListen::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CDunUsbListen::ConstructL()
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::ConstructL()" ) ));
+ if ( !iServer || !iParent )
+ {
+ User::Leave( KErrGeneral );
+ }
+ CActiveScheduler::Add( this );
+ FTRACE(FPrint( _L( "CDunUsbListen::ConstructL() complete" ) ));
+ }
+
+// ---------------------------------------------------------------------------
+// Initializes this class
+// ---------------------------------------------------------------------------
+//
+void CDunUsbListen::Initialize()
+ {
+ // Don't initialize iServer here (it is set through NewL)
+ // Don't initialize iParent here (it is set through NewL)
+ // Don't initialize iUsbServer here (it is set through NewL)
+ iDeviceState = EUsbDeviceStateUndefined;
+ iDeviceStatePrev = EUsbDeviceStateUndefined;
+ }
+
+// ---------------------------------------------------------------------------
+// Activates listening request
+// ---------------------------------------------------------------------------
+//
+TInt CDunUsbListen::Activate()
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::Activate()" ) ));
+
+ if ( iListenState != EUsbListenStateIdle )
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::Activate() (not ready) complete" ) ));
+ return KErrNotReady;
+ }
+ iDeviceStatePrev = iDeviceState;
+ iStatus = KRequestPending;
+ iUsbServer.DeviceStateNotification( KDunUsbDeviceStateMask,
+ iDeviceState,
+ iStatus );
+ SetActive();
+ iListenState = EUsbListenStateListening;
+ FTRACE(FPrint( _L( "CDunUsbListen::Activate() complete" ) ));
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// From class CActive.
+// Called when read or write operation is ready.
+// ---------------------------------------------------------------------------
+//
+void CDunUsbListen::RunL()
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::RunL() iStatus=%d"), iStatus.Int() ));
+ iListenState = EUsbListenStateIdle;
+
+ if ( iStatus.Int() != KErrNone )
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::RunL() (ERROR) complete" )));
+ iServer->NotifyPluginCloseRequest( KDunUsbPluginUid, ETrue );
+ return;
+ }
+
+ FTRACE(FPrint( _L( "CDunUsbListen::RunL() Usb device state =%X, Issue request" ), iDeviceState));
+
+ TDunPluginState parentState = iServer->GetPluginStateByUid( KDunUsbPluginUid );
+
+ TInt retTemp = KErrNone;
+ if ( iDeviceState == EUsbDeviceStateConfigured &&
+ iDeviceStatePrev != EUsbDeviceStateConfigured &&
+ parentState != EDunStateChanneled )
+ {
+ // USB has been connected&configured and we are in PC Suite mode
+ FTRACE(FPrint( _L( "CDunUsbListen::RunL() DeviceState is configured -> open connection" ) ));
+ TBool noFreeChans = EFalse;
+ // noFreeChans will be omitted (not needed to set to RComm)
+ retTemp = iParent->NotifyChannelAllocate( noFreeChans );
+ if ( retTemp != KErrNone )
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::RunL() channel allocation failed!" ) ));
+ iServer->NotifyPluginCloseRequest( KDunUsbPluginUid, ETrue );
+ return;
+ }
+ }
+ else if ( iDeviceState < EUsbDeviceStateConfigured &&
+ iDeviceStatePrev >= EUsbDeviceStateConfigured &&
+ parentState == EDunStateChanneled )
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::RunL() DeviceState is not configured -> close connection" ) ));
+ retTemp = iParent->NotifyChannelFree();
+ if ( retTemp != KErrNone )
+ {
+ FTRACE(FPrint( _L( "CDunUsbListen::RunL() channel free failed!" ) ));
+ iServer->NotifyPluginCloseRequest( KDunUsbPluginUid, ETrue );
+ return;
+ }
+ }
+
+ // Start listening again
+ Activate();
+
+ FTRACE(FPrint( _L( "CDunUsbListen::RunL() complete" )));
+ }
+
+// ---------------------------------------------------------------------------
+// From class CActive.
+// Cancel current activity.
+// ---------------------------------------------------------------------------
+//
+void CDunUsbListen::DoCancel()
+ {
+ }