/*

* Copyright (c) 1997-2009 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:

*

*/

#include <e32std.h>

#include "CdcInterfaceBase.h"

#include <usb/usblogger.h>

#ifdef __FLOG_ACTIVE

_LIT8(KLogComponent, "ECACM");

#endif

CCdcInterfaceBase::CCdcInterfaceBase(const TDesC16& aIfcName)

/**

 * Constructor.

 *

 * @param aIfcName The name of the interface.

 */

	{

	iIfcName.Set(aIfcName);

	}

void CCdcInterfaceBase::BaseConstructL()

/**

 * Construct the object

 * This call registers the object with the USB device driver

 */

	{

	LOGTEXT(_L8("\tcalling RDevUsbcClient::Open"));

	// 0 is assumed to mean ep0

	TInt ret = iLdd.Open(0); 

	if ( ret )

		{

		LOGTEXT2(_L8("\tRDevUsbcClient::Open = %d"), ret);

		LEAVEIFERRORL(ret); 

		}

	ret = SetUpInterface();

	if ( ret )

		{

		LOGTEXT2(_L8("\tSetUpInterface = %d"), ret);

		LEAVEIFERRORL(ret);

		}

	}

CCdcInterfaceBase::~CCdcInterfaceBase()

/**

 * Destructor.

 */

	{

	LOG_FUNC

	if ( iLdd.Handle() )

		{

		LOGTEXT(_L8("\tLDD handle exists"));

		// Don't bother calling ReleaseInterface- the base driver spec says 

		// that Close does it for us.

		LOGTEXT(_L8("\tclosing LDD session"));

		iLdd.Close();

		}

	}

TInt CCdcInterfaceBase::GetInterfaceNumber(TUint8& aIntNumber)

/**

 * Get my interface number

 *

 * @param aIntNumber My interface number

 * @return Error.

 */

	{

	LOG_FUNC

	TInt interfaceSize = 0;

	// 0 means the main interface in the LDD API

	TInt res = iLdd.GetInterfaceDescriptorSize(0, interfaceSize);

	if ( res )

		{

		LOGTEXT2(_L8("\t***GetInterfaceDescriptorSize()=%d"), res);

		return res;

		}

	HBufC8* interfaceBuf = HBufC8::New(interfaceSize);

	if ( !interfaceBuf )

		{

		LOGTEXT(_L8("\t***failed to create interfaceBuf- "

			"returning KErrNoMemory"));

		return KErrNoMemory;

		}

	TPtr8 interfacePtr = interfaceBuf->Des();

	interfacePtr.SetLength(0);

	// 0 means the main interface in the LDD API

	res = iLdd.GetInterfaceDescriptor(0, interfacePtr); 

	if ( res )

		{

		delete interfaceBuf;

		LOGTEXT2(_L8("\t***GetInterfaceDescriptor()=%d"), res);

		return res;

		}

#ifdef __FLOG_ACTIVE

	LOGTEXT2(_L8("\t***interface length = %d"), interfacePtr.Length());

	for ( TInt i = 0 ; i < interfacePtr.Length() ; i++ )

		{

		LOGTEXT2(_L8("\t***** %x"),interfacePtr[i]);

		}

#endif

	const TUint8* buffer = reinterpret_cast<const TUint8*>(interfacePtr.Ptr());

	// 2 is where the interface number is, according to the LDD API

	aIntNumber = buffer[2]; 

	LOGTEXT2(_L8("\tinterface number = %d"), aIntNumber);

	delete interfaceBuf;

	return KErrNone;

	}

//

// End of file