systemswstubs/examplecommonisc/IscDataTransmissionBase/src/IscDataTransmissionBase.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 14 Jan 2010 07:14:53 +0200
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/*
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* Copyright (c) 2007 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:  Implementation of DIscDataTransmissionBase class
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*
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*/
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// INCLUDE FILES
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#include <IscDevice.h>
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#include "IscTrace.h"
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#include "IscDataTransmissionBase.h"
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#include "IscBufferAllocator.h"
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#ifdef __WINS__
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#include <windows.h>
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#endif
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// EXTERNAL DATA STRUCTURES
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// EXTERNAL FUNCTION PROTOTYPES  
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// CONSTANTS
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// MACROS
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// LOCAL CONSTANTS AND MACROS
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// MODULE DATA STRUCTURES
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// LOCAL FUNCTION PROTOTYPES
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// FORWARD DECLARATIONS
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#ifdef __WINS__
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CRITICAL_SECTION g_IscDTBCriticalSection;
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#endif
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// DIscDataTransmissionBase::DIscDataTransmissionBase
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// C++ default constructor
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// ( other items were commented in a header ).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C DIscDataTransmissionBase::DIscDataTransmissionBase()
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    :iDevice( NULL ),
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    iIscBufferAllocator( NULL )
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    {
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    A_TRACE( ( _T( "DIscDataTransmissionBase::DIscDataTransmissionBase()" ) ) );
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#ifdef __WINS__
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     InitializeCriticalSection( &g_IscDTBCriticalSection );
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#endif
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    }
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// Destructor
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EXPORT_C DIscDataTransmissionBase::~DIscDataTransmissionBase()
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    {
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    A_TRACE( ( _T( "DIscDataTransmissionBase::~DIscDataTransmissionBase()" ) ) );
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    if ( iIscBufferAllocator )
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        {
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        delete iIscBufferAllocator;
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        iIscBufferAllocator=NULL;
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        }
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#ifdef __WINS__
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    DeleteCriticalSection( &g_IscDTBCriticalSection );
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#endif
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    A_TRACE( ( _T( "DIscDataTransmissionBase::~DIscDataTransmissionBase - return void" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// DIscDataTransmissionBase::AllocBuffers
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// buffer allocations according to the ISC Multiplexer
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// ( other items were commented in a header ).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void DIscDataTransmissionBase::AllocBuffers( TIscBufferEntry* aBufferConfig )
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    {
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    A_TRACE( ( _T( "DIscDataTransmissionBase::AllocBuffers(0x%x)" ), aBufferConfig ) );
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    // Allocate buffers
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    if ( !iIscBufferAllocator )
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        {
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        iIscBufferAllocator = new DIscBufferAllocator( aBufferConfig );        
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        ASSERT_RESET_ALWAYS( iIscBufferAllocator, "ISCDataTransmissionBase",EIscMemoryAllocationFailure );
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        iIscBufferAllocator->AllocBuffers();
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        }
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    A_TRACE( ( _T( "DIscDataTransmissionBase::AllocBuffers - return void" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// DIscDataTransmissionBase::ReceiveFrame
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// Transfer incoming frame to ISC Driver
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// ( other items were commented in a header ).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void DIscDataTransmissionBase::ReceiveFrame( 
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    TDesC8& aFrame )
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    {
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    if ( iDevice )
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        {
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        iDevice->Receive( &aFrame );
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        }
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    else
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        {
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        TRACE_ASSERT_ALWAYS;
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        }
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    }
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// -----------------------------------------------------------------------------
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// DIscDataTransmissionBase::NotifyConnectionStatus
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// Notifies any connection status changes to ISC Driver
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// ( other items were commented in a header ).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void DIscDataTransmissionBase::NotifyConnectionStatus( 
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    TInt aStatus )
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    {
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    A_TRACE( ( _T( "DIscDataTransmissionBase::NotifyConnectionStatus(0x%x)" ), aStatus ) );
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    if ( iDevice )
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        {
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        iDevice->NotifyConnectionStatus( aStatus );
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        }
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    A_TRACE( ( _T( "DIscDataTransmissionBase::NotifyConnectionStatus - return void" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// DIscDataTransmissionBase::ReserveMemoryBlock
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// Reserve memory block
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// ( other items were commented in a header ).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void DIscDataTransmissionBase::ReserveMemoryBlock( 
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    TDes8*& aPtr, 
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    TUint16 aSize )
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    {    
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    E_TRACE( ( _T( "IDTB:Res(0x%x)" ), aSize ) );
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    iIscBufferAllocator->ReserveMemoryBlock( aPtr, aSize );
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    }
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// -----------------------------------------------------------------------------
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// DIscDataTransmissionBase::ReleaseMemoryBlock
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// Release the reserved memory block
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// ( other items were commented in a header ).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void DIscDataTransmissionBase::ReleaseMemoryBlock( 
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    TDes8* aPtr )
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    {
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    E_TRACE( ( _T( "IDTB:Rel (0x%x)" ), aPtr ) );    
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    iIscBufferAllocator->ReleaseMemoryBlock( aPtr );
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    }
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// -----------------------------------------------------------------------------
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// DIscDataTransmissionBase::Connect
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// Connects ISC Driver to ISC Data Transmission Driver
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// ( other items were commented in a header ).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void DIscDataTransmissionBase::Connect( 
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    DIscDevice* aDevice )
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    {
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    A_TRACE( ( _T( "DIscDataTransmissionBase::Connect(0x%x)" ), aDevice ) );
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    ASSERT_RESET_ALWAYS( aDevice, "ISCDataTransmissionBase", EIscNullIscDriverPointer );
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    iDevice = aDevice;
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    A_TRACE( ( _T( "DIscDataTransmissionBase::Connect - return void" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// DIscDataTransmissionBase::Install
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// Implementation of pure-virtual Install from DLogicalDevice
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// ( other items were commented in a header ).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C TInt DIscDataTransmissionBase::Install()
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    {
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    A_TRACE( ( _T( "DIscDataTransmissionBase::Install()" ) ) );
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    SetName( &KIscDataTransmissionDriverName );
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    // call second phase install ( located in the driver realizing this API )
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    TInt r = Install2ndPhase();
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    A_TRACE( ( _T( "DIscDataTransmissionBase::Install - return 0x%x" ), r ) );
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    return r;
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    }
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#if defined( __WINSCW__ )
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DECLARE_STANDARD_LDD()
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    {
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    return NULL;
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    }
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#endif
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//  End of File