author | Pat Downey <patd@symbian.org> |
Wed, 01 Sep 2010 12:20:40 +0100 | |
branch | RCL_3 |
changeset 40 | 52a167391590 |
parent 0 | c3e98f10fcf4 |
child 44 | 7a45d2ea2f56 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006-2008 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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|
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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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|
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const TUint KDunUsbDeviceStateMask = 0x00ff; |
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|
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// ======== MEMBER FUNCTIONS ======== |
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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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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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// --------------------------------------------------------------------------- |
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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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// --------------------------------------------------------------------------- |
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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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|
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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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|
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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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|
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FTRACE(FPrint( _L( "CDunUsbListen::IssueRequestL() complete" ) )); |
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return KErrNone; |
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} |
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105 |
|
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// --------------------------------------------------------------------------- |
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// Stops listening |
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// --------------------------------------------------------------------------- |
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109 |
// |
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TInt CDunUsbListen::Stop() |
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111 |
{ |
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FTRACE(FPrint( _L( "CDunUsbListen::Stop()" ) )); |
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if ( iListenState != EUsbListenStateListening ) |
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114 |
{ |
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FTRACE(FPrint( _L( "CDunUsbListen::Stop() (not ready) complete" ) )); |
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return KErrNotReady; |
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} |
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iUsbServer.DeviceStateNotificationCancel(); |
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Cancel(); |
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iListenState = EUsbListenStateIdle; |
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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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return KErrNone; |
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} |
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126 |
|
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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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138 |
{ |
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Initialize(); |
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} |
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141 |
|
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// --------------------------------------------------------------------------- |
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// CDunUsbListen::ConstructL |
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// --------------------------------------------------------------------------- |
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145 |
// |
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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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150 |
{ |
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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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156 |
|
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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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169 |
|
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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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175 |
{ |
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FTRACE(FPrint( _L( "CDunUsbListen::Activate()" ) )); |
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177 |
|
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if ( iListenState != EUsbListenStateIdle ) |
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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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iStatus = KRequestPending; |
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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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iListenState = EUsbListenStateListening; |
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FTRACE(FPrint( _L( "CDunUsbListen::Activate() complete" ) )); |
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return KErrNone; |
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} |
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193 |
|
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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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200 |
{ |
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() iStatus=%d"), iStatus.Int() )); |
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iListenState = EUsbListenStateIdle; |
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203 |
|
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if ( iStatus.Int() != KErrNone ) |
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205 |
{ |
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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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|
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() Usb device state =%X, Issue request" ), iDeviceState)); |
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|
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TDunPluginState parentState = iServer->GetPluginStateByUid( KDunUsbPluginUid ); |
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|
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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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|
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// Start listening again |
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Activate(); |
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|
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FTRACE(FPrint( _L( "CDunUsbListen::RunL() complete" ))); |
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} |
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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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} |