/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Implementation of DIscDataTransmissionBase class

*

*/

// INCLUDE FILES

#include <IscDevice.h>

#include "IscTrace.h"

#include "IscDataTransmissionBase.h"

#include "IscBufferAllocator.h"

#ifdef __WINS__

#include <windows.h>

#endif

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES  

// CONSTANTS

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

#ifdef __WINS__

CRITICAL_SECTION g_IscDTBCriticalSection;

#endif

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// DIscDataTransmissionBase::DIscDataTransmissionBase

// C++ default constructor

// ( other items were commented in a header ).

// -----------------------------------------------------------------------------

//

EXPORT_C DIscDataTransmissionBase::DIscDataTransmissionBase()

    :iDevice( NULL ),

    iIscBufferAllocator( NULL )

    {

    A_TRACE( ( _T( "DIscDataTransmissionBase::DIscDataTransmissionBase()" ) ) );

#ifdef __WINS__

     InitializeCriticalSection( &g_IscDTBCriticalSection );

#endif

    }

// Destructor

EXPORT_C DIscDataTransmissionBase::~DIscDataTransmissionBase()

    {

    A_TRACE( ( _T( "DIscDataTransmissionBase::~DIscDataTransmissionBase()" ) ) );

    if ( iIscBufferAllocator )

        {

        delete iIscBufferAllocator;

        iIscBufferAllocator=NULL;

        }

#ifdef __WINS__

    DeleteCriticalSection( &g_IscDTBCriticalSection );

#endif

    A_TRACE( ( _T( "DIscDataTransmissionBase::~DIscDataTransmissionBase - return void" ) ) );

    }

// -----------------------------------------------------------------------------

// DIscDataTransmissionBase::AllocBuffers

// buffer allocations according to the ISC Multiplexer

// ( other items were commented in a header ).

// -----------------------------------------------------------------------------

//

EXPORT_C void DIscDataTransmissionBase::AllocBuffers( TIscBufferEntry* aBufferConfig )

    {

    A_TRACE( ( _T( "DIscDataTransmissionBase::AllocBuffers(0x%x)" ), aBufferConfig ) );

    // Allocate buffers

    if ( !iIscBufferAllocator )

        {

        iIscBufferAllocator = new DIscBufferAllocator( aBufferConfig );        

        ASSERT_RESET_ALWAYS( iIscBufferAllocator, "ISCDataTransmissionBase",EIscMemoryAllocationFailure );

        iIscBufferAllocator->AllocBuffers();

        }

    A_TRACE( ( _T( "DIscDataTransmissionBase::AllocBuffers - return void" ) ) );

    }

// -----------------------------------------------------------------------------

// DIscDataTransmissionBase::ReceiveFrame

// Transfer incoming frame to ISC Driver

// ( other items were commented in a header ).

// -----------------------------------------------------------------------------

//

EXPORT_C void DIscDataTransmissionBase::ReceiveFrame( 

    TDesC8& aFrame )

    {

    if ( iDevice )

        {

        iDevice->Receive( &aFrame );

        }

    else

        {

        TRACE_ASSERT_ALWAYS;

        }

    }

// -----------------------------------------------------------------------------

// DIscDataTransmissionBase::NotifyConnectionStatus

// Notifies any connection status changes to ISC Driver

// ( other items were commented in a header ).

// -----------------------------------------------------------------------------

//

EXPORT_C void DIscDataTransmissionBase::NotifyConnectionStatus( 

    TInt aStatus )

    {

    A_TRACE( ( _T( "DIscDataTransmissionBase::NotifyConnectionStatus(0x%x)" ), aStatus ) );

    if ( iDevice )

        {

        iDevice->NotifyConnectionStatus( aStatus );

        }

    A_TRACE( ( _T( "DIscDataTransmissionBase::NotifyConnectionStatus - return void" ) ) );

    }

// -----------------------------------------------------------------------------

// DIscDataTransmissionBase::ReserveMemoryBlock

// Reserve memory block

// ( other items were commented in a header ).

// -----------------------------------------------------------------------------

//

EXPORT_C void DIscDataTransmissionBase::ReserveMemoryBlock( 

    TDes8*& aPtr, 

    TUint16 aSize )

    {    

    E_TRACE( ( _T( "IDTB:Res(0x%x)" ), aSize ) );

    iIscBufferAllocator->ReserveMemoryBlock( aPtr, aSize );

    }

// -----------------------------------------------------------------------------

// DIscDataTransmissionBase::ReleaseMemoryBlock

// Release the reserved memory block

// ( other items were commented in a header ).

// -----------------------------------------------------------------------------

//

EXPORT_C void DIscDataTransmissionBase::ReleaseMemoryBlock( 

    TDes8* aPtr )

    {

    E_TRACE( ( _T( "IDTB:Rel (0x%x)" ), aPtr ) );    

    iIscBufferAllocator->ReleaseMemoryBlock( aPtr );

    }

// -----------------------------------------------------------------------------

// DIscDataTransmissionBase::Connect

// Connects ISC Driver to ISC Data Transmission Driver

// ( other items were commented in a header ).

// -----------------------------------------------------------------------------

//

EXPORT_C void DIscDataTransmissionBase::Connect( 

    DIscDevice* aDevice )

    {

    A_TRACE( ( _T( "DIscDataTransmissionBase::Connect(0x%x)" ), aDevice ) );

    ASSERT_RESET_ALWAYS( aDevice, "ISCDataTransmissionBase", EIscNullIscDriverPointer );

    iDevice = aDevice;

    A_TRACE( ( _T( "DIscDataTransmissionBase::Connect - return void" ) ) );

    }

// -----------------------------------------------------------------------------

// DIscDataTransmissionBase::Install

// Implementation of pure-virtual Install from DLogicalDevice

// ( other items were commented in a header ).

// -----------------------------------------------------------------------------

//

EXPORT_C TInt DIscDataTransmissionBase::Install()

    {

    A_TRACE( ( _T( "DIscDataTransmissionBase::Install()" ) ) );

    SetName( &KIscDataTransmissionDriverName );

    // call second phase install ( located in the driver realizing this API )

    TInt r = Install2ndPhase();

    A_TRACE( ( _T( "DIscDataTransmissionBase::Install - return 0x%x" ), r ) );

    return r;

    }

#if defined( __WINSCW__ )

DECLARE_STANDARD_LDD()

    {

    return NULL;

    }

#endif

//  End of File