// Copyright (c) 2006-2009 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:

// This file implements the base class for the protocol interface classes.

// 

//

/**

 @file

*/

#include <nifmbuf.h>

#include "BinderBase.h"

#include "RawIP2Flow.h"

#include "BcaController.h"

CBinderBase::CBinderBase(CRawIP2Flow& aFlow, CBttLogger* aTheLogger)

/**

 * Constructor

 *

 * @param aNifMain A pointer to CRawIPFlow

 */

	:iFlow(&aFlow),

	iTheLogger(aTheLogger),

	iStarted(EFalse)

	{	

#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS

	iIPTagHeader = new (ELeave) CIPTagHeader(iTheLogger);

#endif // RAWIP_HEADER_APPENDED_TO_PACKETS

	}

CBinderBase::~CBinderBase()

/**

 * Destructor

 */

	{	

#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS

	delete iIPTagHeader;

#endif // RAWIP_HEADER_APPENDED_TO_PACKETS

	}

#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS

void CBinderBase::SetType(TUint16 aType)

{

/**

 *	Used to specify the type of the IP header.

 */

	_LOG_L1C1(_L8("CBinderBase::SetType"));

	iIPTagHeader->SetType(aType);	

}

#endif // RAWIP_HEADER_APPENDED_TO_PACKETS

void CBinderBase::SetSender(BasebandChannelAdaptation2::MLowerDataSender* aLowerDataSender)

	{

	iLowerDataSender = aLowerDataSender;

	}

// from ESock::MLowerControl

TInt CBinderBase::BlockFlow(MLowerControl::TBlockOption aOption)

	{

	if(iFlow->GetBcaController())

		{

		if(iFlow->GetBcaController()->Bca())

			{

			if(aOption != MLowerControl::EEnableAllBinders)

				{ // unblock flow

				iFlow->GetBcaController()->Bca()->SetFlowControl(BasebandChannelAdaptation2::MBca2::EUnblockFlow);

				}

			else

				{ //block flow

				iFlow->GetBcaController()->Bca()->SetFlowControl(BasebandChannelAdaptation2::MBca2::EBlockFlow);

				}

			return KErrNone;

			}

		}

	// MBca not ready

	return KErrNotReady;

	}

void CBinderBase::ChangeFlow(CRawIP2Flow& aNewFlow)

    {

    ASSERT(iFlow);

    iFlow = &aNewFlow;

    }

ESock::MLowerDataSender* CBinderBase::Bind(ESock::MUpperDataReceiver* aUpperReceiver, ESock::MUpperControl* aUpperControl)

/**

 * Binds TCP/IP protocol to Flow

 *

 * @param aUpperReceiver A pointer to Upper layer Receive class

 * @param aUpperControl A pointer to Upper layer control class

 */

	{

    _LOG_L1C1(_L8("CBinderBase:\tBind()"));

	iUpperReceiver = aUpperReceiver;

	iUpperControl = aUpperControl;

	return this;

	}

void CBinderBase::Unbind(ESock::MUpperDataReceiver* aUpperReceiver, ESock::MUpperControl* aUpperControl)

    {

	_LOG_L1C1(_L8("CBinderBase:\tUnbind()"));

#ifndef _DEBUG

	(void) aUpperReceiver;

	(void) aUpperControl;

#endif

	ASSERT(aUpperReceiver == iUpperReceiver);

	ASSERT(aUpperControl == iUpperControl);

	iUpperReceiver = NULL;

	iUpperControl = NULL;

	}

void CBinderBase::StartSending()

/**

 * Indicates to the protocol layer that the NIF is ready to send packets.

 *

 * @param aProtocol A pointer to a protocol

 */

	{

	_LOG_L1C1(_L8("CBinderBase:\tStartSending()"));

	if (!iStarted)

		{

		GetFlow().LinkLayerUp();

		iStarted = ETrue;

		}

	// Default implementation.

	// Uses iProtocol instead aProtocol.

	iUpperControl->StartSending();

	}

void CBinderBase::Error(TInt aErr)

/**

 * Indicates to the protocol layer that a fatal error has occured in the BCA.

 *

 * @param aProtocol A pointer to a protocol

 */

	{

	_LOG_L1C1(_L8("CBinderBase:\tError()"));

	// Default implementation.

	// Uses iProtocol instead aProtocol.

	iUpperControl->Error(aErr);

	}

void CBinderBase::UpdateContextConfigL(const TPacketDataConfigBase& /*aConfig*/)

/**

 * Method overidden by UpdateContextConfig on IPv4ProtocolIf class

 *

 * @param aConfig Not used

 */

	{

	// Default implementation does nothing.

	}

void CBinderBase::UpdateConnectionSpeed(TUint /*aConnectionSpeed*/)

/**

 * Method overidden by UpdateConnectionSpeed on IPv4Binder class

 *

 * @param aConnectionSpeed Not used

 */

	{

	// Default implementation does nothing.

	}