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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 Bluetooth plugin
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*
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*/
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#include <bt_sock.h>
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#include <c32comm.h>
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#include "DunPlugin.h"
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#include "DunBtListen.h"
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#include "DunBtPlugin.h"
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#include "DunDebug.h"
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#include "DunTransporter.h"
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_LIT( KBtChannelName, "DUNBT::" );
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const TInt KCharactersInTInt = 10; // For "2147483648"
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// CDunBtPlugin::CDunBtPlugin()
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// ---------------------------------------------------------------------------
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//
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CDunBtPlugin::CDunBtPlugin() :
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iServer( NULL ),
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iBTListen( NULL ),
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iTransporter( NULL )
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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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CDunBtPlugin::~CDunBtPlugin()
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{
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FTRACE(FPrint( _L( "CDunBtPlugin::~CDunBtPlugin()" ) ));
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Uninitialize();
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FTRACE(FPrint( _L( "CDunBtPlugin::~CDunBtPlugin() complete" ) ));
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}
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// ---------------------------------------------------------------------------
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// State of this plugin
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// ---------------------------------------------------------------------------
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//
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TDunPluginState CDunBtPlugin::PluginState()
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{
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return iServer->GetPluginStateByUid( KDunBtPluginUid );
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}
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// ---------------------------------------------------------------------------
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// Constructs a listener object for this plugin
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// ---------------------------------------------------------------------------
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//
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void CDunBtPlugin::ConstructListenerL()
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{
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FTRACE(FPrint(_L("CDunBtPlugin::ConstructListenerL()")));
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if ( PluginState() != EDunStateLoaded )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::ConstructListenerL() (not ready) complete")));
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User::Leave( KErrNotReady );
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}
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ReportStateChangeUp( EDunStateTryListen );
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if ( iBTListen )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::ConstructListenerL() (already exists) complete")));
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User::Leave( KErrAlreadyExists );
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}
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CDunBtListen* listen = CDunBtListen::NewL( iServer,
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this,
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iTransporter,
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iEntity );
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CleanupStack::PushL( listen );
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listen->IssueRequestL();
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CleanupStack::Pop( listen );
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iBTListen = listen;
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ReportStateChangeUp( EDunStateListening );
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FTRACE(FPrint(_L("CDunBtPlugin::ConstructListenerL() complete")));
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}
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// ---------------------------------------------------------------------------
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// Sets new state
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// New state must be one more than the old state
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// ---------------------------------------------------------------------------
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//
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TInt CDunBtPlugin::ReportStateChangeUp( TDunPluginState aPluginState )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::ReportStateChangeUp()")));
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TInt retTemp = iServer->NotifyPluginStateChangeUp( aPluginState,
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KDunBtPluginUid );
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::ReportStateChangeUp() (ERROR) complete")));
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return retTemp;
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}
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FTRACE(FPrint(_L("CDunBtPlugin::ReportStateChangeUp() complete")));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Sets new state
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// New state must be one less than the old state
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// ---------------------------------------------------------------------------
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//
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TInt CDunBtPlugin::ReportStateChangeDown( TDunPluginState aPluginState )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::ReportStateChangeDown()")));
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TInt retTemp = iServer->NotifyPluginStateChangeDown( aPluginState,
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KDunBtPluginUid );
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::ReportStateChangeDown() (ERROR) complete")));
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return retTemp;
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}
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FTRACE(FPrint(_L("CDunBtPlugin::ReportStateChangeDown() complete")));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Allocates a free channel
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// ---------------------------------------------------------------------------
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//
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void CDunBtPlugin::AllocateChannelL( TBool& aNoFreeChans,
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TBtCleanupInfo& aCleanupInfo )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::AllocateChannelL()")));
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// iDataSocket has new data socket information so copy it to iBTPorts
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TBtPortEntity* foundEntity = NULL;
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TInt foundIndex = GetFirstFreePort( foundEntity );
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if ( !foundEntity ) // free not found so add new
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{
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TBtPortEntity newEntity;
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iBTPorts.AppendL( newEntity );
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aCleanupInfo.iNewEntity = ETrue;
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aCleanupInfo.iEntityIndex = iBTPorts.Count() - 1;
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foundEntity = &iBTPorts[ aCleanupInfo.iEntityIndex ];
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}
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else // free found so change array
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{
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aCleanupInfo.iNewEntity = EFalse;
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aCleanupInfo.iEntityIndex = foundIndex;
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foundEntity = &iBTPorts[ foundIndex ];
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}
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foundEntity->iChannelNum = iEntity.iChannelNum;
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foundEntity->iBTPort = iEntity.iBTPort;
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RSocket* socket = &foundEntity->iBTPort;
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HBufC8* channelName = HBufC8::NewMaxLC( KBtChannelName().Length() +
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KCharactersInTInt );
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TPtr8 channelNamePtr = channelName->Des();
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channelNamePtr.Copy( KBtChannelName );
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channelNamePtr.AppendNum( iEntity.iChannelNum );
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iTransporter->AllocateChannelL( socket,
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KDunBtPluginUid,
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channelNamePtr,
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EFalse,
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aNoFreeChans );
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iTransporter->AddConnMonCallbackL( socket,
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this,
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EDunReaderUpstream,
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EFalse );
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iTransporter->AddConnMonCallbackL( socket,
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this,
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EDunWriterUpstream,
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EFalse );
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iTransporter->AddConnMonCallbackL( socket,
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this,
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EDunReaderDownstream,
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ETrue );
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iTransporter->AddConnMonCallbackL( socket,
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this,
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EDunWriterDownstream,
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EFalse );
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iTransporter->IssueTransferRequestsL( socket );
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CleanupStack::PopAndDestroy( channelName );
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FTRACE(FPrint(_L("CDunBtPlugin::AllocateChannelL() complete")));
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}
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// ---------------------------------------------------------------------------
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// Frees an existing channel
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// ---------------------------------------------------------------------------
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//
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TInt CDunBtPlugin::FreeChannels()
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{
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FTRACE(FPrint(_L("CDunBtPlugin::FreeChannels()")));
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if ( PluginState() != EDunStateTryUninitialize )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::FreeChannels() (not ready) complete")));
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return KErrNotReady;
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}
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TInt i;
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TInt count = iBTPorts.Count();
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for ( i=0; i<count; i++ )
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{
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if ( iBTPorts[i].iBTPort.SubSessionHandle() )
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{
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iTransporter->FreeChannel( &iBTPorts[i].iBTPort );
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iBTPorts[i].iBTPort.Close();
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// All channels freed and this is for Uninitialize() so don't touch
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// advertisement monitor here!
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}
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iBTPorts[i].iChannelNum = KErrNotFound;
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}
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iBTPorts.Close();
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FTRACE(FPrint(_L("CDunBtPlugin::FreeChannels() complete")));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Uninitializes this plugin
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// ---------------------------------------------------------------------------
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//
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TInt CDunBtPlugin::Uninitialize()
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{
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FTRACE(FPrint( _L( "CDunBtPlugin::Uninitialize()" ) ));
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ReportStateChangeDown( EDunStateTryUninitialize );
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// Free channels (ignore errors)
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FreeChannels();
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// Delete listening object (also advertisement monitor)
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delete iBTListen;
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iBTListen = NULL;
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// Set state back to loaded
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ReportStateChangeUp( EDunStateUninitialized );
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ReportStateChangeUp( EDunStateTryLoad );
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ReportStateChangeUp( EDunStateLoaded );
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FTRACE(FPrint( _L( "CDunBtPlugin::Uninitialize() complete" ) ));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Gets port's index and entity by connection ID
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// ---------------------------------------------------------------------------
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//
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TInt CDunBtPlugin::GetPortByConnId( TConnId aConnId, TBtPortEntity*& aEntity )
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{
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FTRACE(FPrint( _L( "CDunBtPlugin::GetPortByConnId()")) );
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TInt i;
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TInt count = iBTPorts.Count();
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for ( i=0; i<count; i++ )
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{
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if ( &iBTPorts[i].iBTPort == aConnId )
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{
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aEntity = &iBTPorts[i];
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FTRACE(FPrint( _L( "CDunBtPlugin::GetPortByConnId() complete")) );
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return i;
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}
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}
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aEntity = NULL;
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FTRACE(FPrint( _L( "CDunBtPlugin::GetPortByConnId() (not found) complete")) );
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return KErrNotFound;
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}
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// ---------------------------------------------------------------------------
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// Gets first free port's index and entity
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// ---------------------------------------------------------------------------
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//
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TInt CDunBtPlugin::GetFirstFreePort( TBtPortEntity*& aEntity )
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{
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FTRACE(FPrint( _L( "CDunBtPlugin::GetFirstFreePort()")) );
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TInt i;
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TInt count = iBTPorts.Count();
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for ( i=0; i<count; i++ )
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{
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if ( !iBTPorts[i].iBTPort.SubSessionHandle() )
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{
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aEntity = &iBTPorts[i];
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FTRACE(FPrint( _L( "CDunBtPlugin::GetFirstFreePort() complete")) );
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return i;
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}
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}
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aEntity = NULL;
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FTRACE(FPrint( _L( "CDunBtPlugin::GetFirstFreePort() (not found) complete")) );
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return KErrNotFound;
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}
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// ---------------------------------------------------------------------------
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// Sets modem's MSC (Modem Status Command)
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// ---------------------------------------------------------------------------
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//
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TInt CDunBtPlugin::SetRFCOMMStatusCommand( TBtPortEntity& aEntity,
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TUint8 aSignal,
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TBool aSignalOn )
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{
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FTRACE(FPrint( _L( "CDunBtPlugin::SetRFCOMMStatusCommand()" ) ));
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// Get existing Modem Status Command (MSC)
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// Ref.: 3GPP TS 07.10 V7.2.0 (2002-03)
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// Table 6,7, (5.4.6.3.7)
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TUint8 modemStatus = 0;
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TPckgBuf<TUint8> pkg( modemStatus );
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TInt retTemp = aEntity.iBTPort.GetOpt( KRFCOMMLocalModemStatus,
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KSolBtRFCOMM,
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pkg );
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint( _L( "CDunBtPlugin::SetRFCOMMStatusCommand() (GetOpt failed!) complete" ) ));
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return retTemp;
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}
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modemStatus = pkg();
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FTRACE(FPrint( _L( "CDunBtPlugin::SetRFCOMMStatusCommand() signals are: 0x%02X" ), modemStatus));
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TBool changed = EFalse;
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TUint8 signal = modemStatus & aSignal;
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if ( aSignalOn )
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{
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if ( !signal )
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{
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modemStatus |= aSignal;
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changed = ETrue;
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}
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}
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else
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{
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if ( signal )
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{
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modemStatus &= ( ~aSignal );
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changed = ETrue;
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}
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}
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if ( changed )
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{
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pkg = modemStatus;
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retTemp = aEntity.iBTPort.SetOpt( KRFCOMMLocalModemStatus,
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KSolBtRFCOMM,
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pkg );
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if ( retTemp != KErrNone )
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{
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FTRACE(FPrint( _L( "CDunBtPlugin::SetRFCOMMStatusCommand() (SetOpt failed!) complete" ) ));
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return retTemp;
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}
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}
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FTRACE(FPrint( _L( "CDunBtPlugin::SetRFCOMMStatusCommand() complete" ) ));
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// Manages advertiser for channel free operation
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// ---------------------------------------------------------------------------
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//
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void CDunBtPlugin::ManageAdvertiserFreeOperationL()
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{
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FTRACE(FPrint(_L("CDunBtPlugin::ManageAdvertiserFreeOperationL()")));
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TInt numOfChans = iTransporter->NumberOfAllocatedChannels();
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// Remove of last CDunTransporter channel removes also the
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// advertisement monitor so set it now if necessary
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if ( numOfChans == 0 )
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{
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iTransporter->SetAdvertisementMonitorL( KDunBtPluginUid, iBTListen );
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}
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FTRACE(FPrint(_L("CDunBtPlugin::ManageAdvertiserFreeOperationL() complete")));
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}
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// ---------------------------------------------------------------------------
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// Cleans partial created channel data based on TATExtCleanupInfo
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// ---------------------------------------------------------------------------
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//
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void CDunBtPlugin::CleanPartialChanneldata( TBtCleanupInfo& aCleanupInfo )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::CleanPartialChanneldata()")));
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RSocket* socket = &iBTPorts[aCleanupInfo.iEntityIndex].iBTPort;
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iTransporter->FreeChannel( socket );
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iBTPorts[aCleanupInfo.iEntityIndex].iChannelNum = KErrNotFound;
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socket->Close();
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if ( aCleanupInfo.iNewEntity )
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{
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iBTPorts.Remove( aCleanupInfo.iEntityIndex );
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}
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FTRACE(FPrint(_L("CDunBtPlugin::CleanPartialChanneldata() complete")));
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}
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// ---------------------------------------------------------------------------
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// From class MDunLocalMediaPlugin.
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// CDunBtPlugin::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CDunBtPlugin::ConstructL( MDunServerCallback* aServer,
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CDunTransporter* aTransporter )
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{
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FTRACE(FPrint( _L( "CDunBtPlugin::ConstructL()" ) ));
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if ( !aServer || !aTransporter )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::ConstructL() not initialized!")));
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User::Leave( KErrBadHandle );
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}
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iServer = aServer;
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iTransporter = aTransporter;
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FTRACE(FPrint( _L( "CDunBtPlugin::ConstructL() complete" ) ));
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}
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// ---------------------------------------------------------------------------
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// From class MDunLocalMediaPlugin.
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// Gets called when server changes a plugin's state
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// ---------------------------------------------------------------------------
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//
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TInt CDunBtPlugin::NotifyServerStateChange( TDunPluginState aPluginState )
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{
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FTRACE(FPrint(_L("CDunBtPlugin::NotifyServerStateChange()")));
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TInt retTemp;
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switch ( aPluginState )
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410 |
{
|
|
411 |
case EDunStateTryListen:
|
|
412 |
if ( PluginState() != EDunStateLoaded )
|
|
413 |
{
|
|
414 |
FTRACE(FPrint(_L("CDunBtPlugin::NotifyServerStateChange() (not ready) complete")));
|
|
415 |
return KErrNotReady;
|
|
416 |
}
|
|
417 |
// Change to listening mode
|
|
418 |
TRAPD( retTrap, ConstructListenerL() );
|
|
419 |
if ( retTrap != KErrNone )
|
|
420 |
{
|
|
421 |
FTRACE(FPrint(_L("CDunBtPlugin::NotifyServerStateChange() (ERROR) complete (%d)"), retTrap));
|
|
422 |
return retTrap;
|
|
423 |
}
|
|
424 |
break;
|
|
425 |
case EDunStateTryUninitialize:
|
|
426 |
if ( PluginState() == EDunStateUninitialized )
|
|
427 |
{
|
|
428 |
FTRACE(FPrint(_L("CDunBtPlugin::NotifyServerStateChange() (not ready) complete")));
|
|
429 |
return KErrNotReady;
|
|
430 |
}
|
|
431 |
// Uninitialize
|
|
432 |
retTemp = Uninitialize();
|
|
433 |
if ( retTemp != KErrNone )
|
|
434 |
{
|
|
435 |
FTRACE(FPrint(_L("CDunBtPlugin::NotifyServerStateChange() (not ready) complete (%d)"), retTemp));
|
|
436 |
return KErrNotReady;
|
|
437 |
}
|
|
438 |
break;
|
|
439 |
default:
|
|
440 |
FTRACE(FPrint(_L("CDunBtPlugin::NotifyServerStateChange() (unknown state) complete")));
|
|
441 |
return KErrNotSupported;
|
|
442 |
}
|
|
443 |
FTRACE(FPrint(_L("CDunBtPlugin::NotifyServerStateChange() complete")));
|
|
444 |
return KErrNone;
|
|
445 |
}
|
|
446 |
|
|
447 |
// ---------------------------------------------------------------------------
|
|
448 |
// From class MDunLocalMediaPlugin.
|
|
449 |
// Gets called when server needs to know the active connection
|
|
450 |
// ---------------------------------------------------------------------------
|
|
451 |
//
|
|
452 |
TConnId CDunBtPlugin::ActiveConnection()
|
|
453 |
{
|
|
454 |
FTRACE(FPrint(_L("CDunBtPlugin::ActiveConnection()")));
|
|
455 |
if ( iBTPorts.Count() >= 1 )
|
|
456 |
{
|
|
457 |
FTRACE(FPrint(_L("CDunBtPlugin::ActiveConnection() complete")));
|
|
458 |
return &iBTPorts[0];
|
|
459 |
}
|
|
460 |
FTRACE(FPrint(_L("CDunBtPlugin::ActiveConnection() (not found) complete")));
|
|
461 |
return NULL;
|
|
462 |
}
|
|
463 |
|
|
464 |
// ---------------------------------------------------------------------------
|
|
465 |
// From class MDunListenCallback.
|
|
466 |
// Gets called when new channel must be created
|
|
467 |
// ---------------------------------------------------------------------------
|
|
468 |
//
|
|
469 |
TInt CDunBtPlugin::NotifyChannelAllocate( TBool& aNoFreeChans )
|
|
470 |
{
|
|
471 |
// Now state can be either EDunStateListening (no channels) or
|
|
472 |
// EDunStateChanneled (one or more channels). Support both states
|
|
473 |
TDunPluginState startState = PluginState();
|
|
474 |
if ( startState!=EDunStateListening && startState!=EDunStateChanneled )
|
|
475 |
{
|
|
476 |
FTRACE(FPrint(_L("CDunBtPlugin::NotifyChannelAllocate() (not ready) complete")));
|
|
477 |
return KErrNotReady;
|
|
478 |
}
|
|
479 |
if ( startState == EDunStateListening )
|
|
480 |
{
|
|
481 |
ReportStateChangeUp( EDunStateTryChannel );
|
|
482 |
}
|
|
483 |
TBtCleanupInfo cleanupInfo;
|
|
484 |
TRAPD( retTrap, AllocateChannelL(aNoFreeChans,cleanupInfo) );
|
|
485 |
if ( retTrap != KErrNone )
|
|
486 |
{
|
|
487 |
CleanPartialChanneldata( cleanupInfo );
|
|
488 |
FTRACE(FPrint(_L("CDunBtPlugin::NotifyChannelAllocate() (trapped!) complete")));
|
|
489 |
return retTrap;
|
|
490 |
}
|
|
491 |
if ( startState == EDunStateListening )
|
|
492 |
{
|
|
493 |
ReportStateChangeUp( EDunStateChanneled );
|
|
494 |
}
|
|
495 |
FTRACE(FPrint(_L("CDunBtPlugin::NotifyChannelAllocate() complete")));
|
|
496 |
return KErrNone;
|
|
497 |
}
|
|
498 |
|
|
499 |
// ---------------------------------------------------------------------------
|
|
500 |
// From class MDunListenCallback.
|
|
501 |
// Gets called when an existing channel must be freed
|
|
502 |
// ---------------------------------------------------------------------------
|
|
503 |
//
|
|
504 |
TInt CDunBtPlugin::NotifyChannelFree()
|
|
505 |
{
|
|
506 |
// No implementation needed here
|
|
507 |
return KErrNotSupported;
|
|
508 |
}
|
|
509 |
|
|
510 |
// ---------------------------------------------------------------------------
|
|
511 |
// From class MDunConnMon.
|
|
512 |
// Gets called when line status changes or when any type of error is detected
|
|
513 |
// ---------------------------------------------------------------------------
|
|
514 |
//
|
|
515 |
void CDunBtPlugin::NotifyProgressChangeL( TConnId aConnId,
|
|
516 |
TDunConnectionReason aConnReason )
|
|
517 |
{
|
|
518 |
FTRACE(FPrint( _L( "CDunBtPlugin::NotifyProgressChangeL()" ) ));
|
|
519 |
// Find matching failed ID
|
|
520 |
TBtPortEntity* foundEntity = NULL;
|
|
521 |
TInt foundIndex = GetPortByConnId( aConnId, foundEntity );
|
|
522 |
if ( !foundEntity )
|
|
523 |
{
|
|
524 |
FTRACE(FPrint( _L( "CDunBtPlugin::NotifyProgressChangeL() (not found) complete")) );
|
|
525 |
User::Leave( KErrNotFound );
|
|
526 |
}
|
|
527 |
if ( aConnReason.iReasonType == EDunReasonTypeSignal )
|
|
528 |
{
|
|
529 |
if ( aConnReason.iContext != EDunMediaContextNetwork )
|
|
530 |
{
|
|
531 |
// Should never come here as other signals are for RComm
|
|
532 |
FTRACE(FPrint( _L( "CDunBtPlugin::NotifyProgressChangeL() (ERROR) complete")) );
|
|
533 |
User::Leave( KErrGeneral );
|
|
534 |
}
|
|
535 |
// Signal change detected on network side -> process change
|
|
536 |
if ( aConnReason.iSignalType == KSignalDCD )
|
|
537 |
{
|
|
538 |
SetRFCOMMStatusCommand( *foundEntity,
|
|
539 |
KModemSignalDV,
|
|
540 |
aConnReason.iSignalHigh );
|
|
541 |
FTRACE(FPrint( _L( "CDunBtPlugin::NotifyProgressChangeL() DV changed")) );
|
|
542 |
}
|
|
543 |
else if ( aConnReason.iSignalType == KSignalRNG )
|
|
544 |
{
|
|
545 |
SetRFCOMMStatusCommand( *foundEntity,
|
|
546 |
KModemSignalIC,
|
|
547 |
aConnReason.iSignalHigh );
|
|
548 |
FTRACE(FPrint( _L( "CDunBtPlugin::NotifyProgressChangeL() IC changed")) );
|
|
549 |
}
|
|
550 |
// Omit other signals
|
|
551 |
}
|
|
552 |
else
|
|
553 |
{
|
|
554 |
// All other cases are down indications from local media side
|
|
555 |
if ( foundEntity->iBTPort.SubSessionHandle() )
|
|
556 |
{
|
|
557 |
iTransporter->FreeChannel( &foundEntity->iBTPort );
|
|
558 |
// CDunTransporter will notify the listener about advertisement
|
|
559 |
// status change after FreeChannel() so no need to do
|
|
560 |
// IssueRequestL() for CDunBtListen here after this.
|
|
561 |
foundEntity->iBTPort.Close();
|
|
562 |
}
|
|
563 |
ManageAdvertiserFreeOperationL();
|
|
564 |
// Now resources are freed so command server to reopen possibly
|
|
565 |
// existing queued plugins
|
|
566 |
iServer->NotifyPluginReopenRequest();
|
|
567 |
}
|
|
568 |
FTRACE(FPrint( _L( "CDunBtPlugin::NotifyProgressChangeL() complete")) );
|
|
569 |
}
|
|
570 |
|
|
571 |
// ======== GLOBAL FUNCTIONS ========
|
|
572 |
|
|
573 |
// ---------------------------------------------------------------------------
|
|
574 |
// NewLocalPluginL implements factory construction for
|
|
575 |
// the class CDunBtPlugin.
|
|
576 |
// The function is exported at ordinal 1.
|
|
577 |
// ---------------------------------------------------------------------------
|
|
578 |
//
|
|
579 |
EXPORT_C MDunLocalMediaPlugin* NewLocalPluginL()
|
|
580 |
{
|
|
581 |
return new (ELeave) CDunBtPlugin;
|
|
582 |
}
|