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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: Monitors signal changes on network side and reports changes
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*
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*/
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#ifdef PRJ_USE_NETWORK_STUBS
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#include <c32comm_stub.h>
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#else
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#include <d32comm.h>
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#endif
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#include "DunTransporter.h"
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#include "DunSignalNotify.h"
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#include "DunDebug.h"
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const TUint KDunSixLowestBitsMask = 0x3F; // Symbian magic
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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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CDunSignalNotify* CDunSignalNotify::NewL( MDunTransporterUtilityAux* aUtility )
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{
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CDunSignalNotify* self = new (ELeave) CDunSignalNotify( aUtility );
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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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CDunSignalNotify::~CDunSignalNotify()
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{
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FTRACE(FPrint( _L("CDunSignalNotify::~CDunSignalNotify()") ));
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ResetData();
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FTRACE(FPrint( _L("CDunSignalNotify::~CDunSignalNotify() 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 CDunSignalNotify::ResetData()
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{
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FTRACE(FPrint( _L("CDunSignalNotify::ResetData()") ));
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// APIs affecting this:
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// IssueRequest()
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Stop();
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// AddCallback()
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iCallbacks.Close();
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// Internal
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Initialize();
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FTRACE(FPrint( _L("CDunSignalNotify::ResetData() complete") ));
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}
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// ---------------------------------------------------------------------------
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// Adds callback for line status change controlling
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// The callback will be called when line status change is detected in
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// endpoint
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// ---------------------------------------------------------------------------
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//
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TInt CDunSignalNotify::AddCallback( MDunConnMon* aCallback )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::AddCallback()" ) ));
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if ( !aCallback )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::AddCallback() (ERROR) complete" ) ));
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return KErrGeneral;
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}
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TInt retTemp = iCallbacks.Find( aCallback );
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if ( retTemp != KErrNotFound )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::AddCallback() (already exists) complete" ) ));
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return KErrAlreadyExists;
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}
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retTemp = iCallbacks.Append( aCallback );
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::AddCallback() (append failed!) complete" ) ));
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return retTemp;
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}
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FTRACE(FPrint( _L("CDunSignalNotify::AddCallback() complete" ) ));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Sets media to use for this endpoint monitor
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// ---------------------------------------------------------------------------
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//
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TInt CDunSignalNotify::SetMedia( RComm* aComm )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::SetMedia()" )));
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if ( !aComm )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::SetMedia() (aComm) not initialized!" )));
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return KErrGeneral;
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}
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// As it's not possible to listen for RFCOMM signal changes the RTS and DTR
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// signals should be anyway set high to Dataport
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aComm->SetSignals( KSignalRTS|KSignalDTR, 0 );
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// Next check if signal change notification from Dataport supported
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TCommCaps2 caps;
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aComm->Caps( caps );
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if ( !(caps().iNotificationCaps & KNotifySignalsChangeSupported) )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::SetMedia() (RComm) (not supported) complete" )));
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return KErrNotSupported;
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}
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iListenSignals = KSignalDTEInputs;
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iNetwork = aComm;
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FTRACE(FPrint( _L("CDunSignalNotify::SetMedia() (RComm) complete" )));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Issues request to start monitoring the endpoint for line status change
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// ---------------------------------------------------------------------------
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//
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TInt CDunSignalNotify::IssueRequest()
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{
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest()" )));
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if ( IsActive() )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() (not ready) complete" )));
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return KErrNotReady;
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}
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if ( !iNetwork )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() (iNetwork) not initialized!" ) ));
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return KErrGeneral;
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}
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TUint currentSignals = iNetwork->Signals( iListenSignals );
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TUint oldSignalsLow = iSignals & KDunSixLowestBitsMask;
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TUint newSignalsLow = currentSignals & KDunSixLowestBitsMask;
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TUint oldSignalsHigh = oldSignalsLow * KSignalChanged;
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TUint newSignalsHigh = newSignalsLow * KSignalChanged;
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() oldSignalsLow=0x%08X" ), oldSignalsLow ));
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() newSignalsLow=0x%08X" ), newSignalsLow ));
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() oldSignalsHigh=0x%08X" ), oldSignalsHigh ));
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() newSignalsHigh=0x%08X" ), newSignalsHigh ));
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if ( newSignalsLow != oldSignalsLow )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() signals already set..." ) ));
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iSignals = newSignalsLow | (oldSignalsHigh ^ newSignalsHigh);
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ManageSignalChange();
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}
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else
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{
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() start waiting for change..." ) ));
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iNetwork->NotifySignalChange( iStatus, iSignals, iListenSignals );
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SetActive();
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}
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FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() complete" )));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Stops monitoring the endpoint for line status change
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// ---------------------------------------------------------------------------
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//
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void CDunSignalNotify::Stop()
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{
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FTRACE(FPrint( _L("CDunSignalNotify::Stop()" )));
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Cancel();
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FTRACE(FPrint( _L("CDunSignalNotify::Stop() complete" )));
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}
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// ---------------------------------------------------------------------------
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// CDunSignalNotify::CDunSignalNotify
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// ---------------------------------------------------------------------------
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//
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CDunSignalNotify::CDunSignalNotify( MDunTransporterUtilityAux* aUtility ) :
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CActive( EPriorityHigh ),
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iUtility( aUtility )
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{
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Initialize();
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}
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// ---------------------------------------------------------------------------
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// CDunSignalNotify::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CDunSignalNotify::ConstructL()
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{
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FTRACE(FPrint( _L("CDunSignalNotify::ConstructL()" ) ));
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if ( !iUtility )
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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("CDunSignalNotify::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 CDunSignalNotify::Initialize()
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{
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FTRACE(FPrint( _L("CDunSignalNotify::Initialize()" ) ));
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// Don't initialize iUtility here (it is set through NewL)
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iListenSignals = 0;
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iSignals = 0;
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iNetwork = NULL;
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FTRACE(FPrint( _L("CDunSignalNotify::Initialize() complete" ) ));
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}
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// ---------------------------------------------------------------------------
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// Manages signal changes
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// ---------------------------------------------------------------------------
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//
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void CDunSignalNotify::ManageSignalChange()
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{
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange()" ) ));
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// The following signals are input signals from network side:
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// KSignalDTEInputs = KSignalCTS | KSignalDSR | KSignalDCD | KSignalRNG
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if ( iSignals & KCTSChanged )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() checking CTS..." ) ));
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if ( iSignals & KSignalCTS ) // CTS changed to high
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{
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ReportSignalChange( KSignalCTS, 0 );
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() CTS changed high" ) ));
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}
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else // CTS changed to low
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{
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ReportSignalChange( 0, KSignalCTS );
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() CTS changed low" ) ));
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}
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}
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if ( iSignals & KDSRChanged )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() checking DSR..." ) ));
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if ( iSignals & KSignalDSR ) // DSR changed to high
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{
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ReportSignalChange( KSignalDSR, 0 );
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() DSR changed high" ) ));
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}
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else // DSR changed to low
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{
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ReportSignalChange( 0, KSignalDSR );
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() DSR changed low" ) ));
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}
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}
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if ( iSignals & KDCDChanged )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() checking DCD..." ) ));
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if ( iSignals & KSignalDCD ) // DCD changed to high
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{
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ReportSignalChange( KSignalDCD, 0 );
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() DCD changed high" ) ));
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}
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else // DCD changed to low
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{
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ReportSignalChange( 0, KSignalDCD );
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() DCD changed low" ) ));
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}
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}
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if ( iSignals & KRNGChanged )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() checking RNG..." ) ));
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if ( iSignals & KSignalRNG ) // RNG changed to high
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{
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ReportSignalChange( KSignalRNG, 0 );
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() RNG changed high" ) ));
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}
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else // RNG changed to low
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{
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ReportSignalChange( 0, KSignalRNG );
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() RNG changed low" ) ));
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}
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}
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IssueRequest();
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FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() complete" ) ));
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}
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// ---------------------------------------------------------------------------
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// Reports signal change
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// ---------------------------------------------------------------------------
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//
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void CDunSignalNotify::ReportSignalChange( TUint aSetMask, TUint aClearMask )
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{
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FTRACE(FPrint( _L("CDunSignalNotify::ReportSignalChange()" ) ));
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TUint signalType = aClearMask;
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TUint signalHigh = EFalse;
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if ( aSetMask != 0 )
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{
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signalType = aSetMask;
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signalHigh = ETrue;
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}
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TInt i;
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TInt count = iCallbacks.Count();
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TDunConnectionReason connReason;
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TConnId localId = iUtility->GetLocalId( iNetwork );
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connReason.iReasonType = EDunReasonTypeSignal;
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connReason.iContext = EDunMediaContextNetwork;
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connReason.iSignalType = signalType;
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connReason.iSignalHigh = signalHigh;
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connReason.iDirection = EDunDirectionUndefined;
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connReason.iErrorCode = KErrNone;
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for ( i=0; i<count; i++ )
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{
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TRAP_IGNORE(
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iCallbacks[i]->NotifyProgressChangeL( localId, connReason ) );
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}
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FTRACE(FPrint( _L("CDunSignalNotify::ReportSignalChange() complete" ) ));
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}
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// ---------------------------------------------------------------------------
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// From class CActive.
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// Gets called when line status changes
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// ---------------------------------------------------------------------------
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//
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void CDunSignalNotify::RunL()
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{
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FTRACE(FPrint( _L("CDunSignalNotify::RunL()" ) ));
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TInt retTemp = iStatus.Int();
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if ( retTemp != KErrNone )
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{
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TInt i;
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TInt count = iCallbacks.Count();
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TDunConnectionReason connReason;
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TConnId localId = iUtility->GetLocalId( iNetwork );
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connReason.iReasonType = EDunReasonTypeRunL;
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connReason.iContext = EDunMediaContextNetwork;
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connReason.iSignalType = 0;
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connReason.iSignalHigh = EFalse;
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connReason.iDirection = EDunDirectionUndefined;
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connReason.iErrorCode = retTemp;
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for ( i=0; i<count; i++ )
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{
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TRAP_IGNORE(
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iCallbacks[i]->NotifyProgressChangeL( localId, connReason ) );
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}
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return;
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}
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FTRACE(FPrint( _L("CDunSignalNotify::RunL() managing signal 0x%08X" ), iSignals ));
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ManageSignalChange();
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FTRACE(FPrint( _L("CDunSignalNotify::RunL() complete" ) ));
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}
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// ---------------------------------------------------------------------------
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// From class CActive.
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// Gets called on cancel
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// ---------------------------------------------------------------------------
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//
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void CDunSignalNotify::DoCancel()
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{
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FTRACE(FPrint( _L("CDunSignalNotify::DoCancel()" ) ));
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iNetwork->NotifySignalChangeCancel();
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FTRACE(FPrint( _L("CDunSignalNotify::DoCancel() complete" ) ));
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}
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