// Copyright (c) 2007-2009 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 <kernel/kernel.h>

#include "eventdd.h"

/**

  Logical Device (factory class) for 'EventDD'

*/

class DEventFactory : public DLogicalDevice

	{

public:

	DEventFactory();

	//Pure virtual funcitons from DLogicalDevice

	TInt Install();

	void GetCaps(TDes8& aDes) const;

	TInt Create(DLogicalChannelBase*& aChannel);

	};

class DEventDD : public DLogicalChannelBase

	{

public:

	//Pure virtual function from DLogicalChannelBase

	TInt Request(TInt aReqNo,TAny* a1,TAny* a2);

private:

	TInt DoControl(TInt aFunction, TAny* a1, TAny* a2);

	TInt SendEvent(TRawEvent* aEvent);

	};

/* DLL Factory Function */

DECLARE_STANDARD_LDD()

	{

	return new DEventFactory;

	}

/* DEventFactory */

DEventFactory::DEventFactory() :DLogicalDevice()

	{

	iVersion=REventDD::VersionRequired();	//Set version number for this device

	}

TInt DEventFactory::Install()

	{

	return SetName(&REventDD::DriverName());

	}

void DEventFactory::GetCaps(TDes8& aDes) const

	{

	Kern::InfoCopy(aDes,KNullDesC8);

	}

TInt DEventFactory::Create(DLogicalChannelBase*& aChannel)

	{

	aChannel=new DEventDD;

	return aChannel?KErrNone:KErrNoMemory;

	}

/* DEventDD */	// Logical Channel

TInt DEventDD::Request(TInt aReqNo,TAny* a1,TAny* a2)

	{

	// Decode the message type and dispatch it to the relevent handler function...

	// only using synchronous control messages

	if (static_cast<TUint>(aReqNo)<static_cast<TUint>(KMaxTInt))

		return DoControl(aReqNo,a1,a2);

	return KErrNotSupported;

	}

/**

  Process synchronous 'control' requests

*/

TInt DEventDD::DoControl(TInt aFunction,TAny* a1,TAny* /*a2*/)

	{

	TInt ret=KErrNotSupported;

	switch (aFunction)

		{

	case REventDD::ESendEvent:

		ret=SendEvent(static_cast<TRawEvent*>(a1));

		break;

	default:;

		}

	return ret;

	}

TInt DEventDD::SendEvent(TRawEvent* aEvent)

	{

	TRawEvent event;

	kumemget(&event,aEvent,sizeof(TRawEvent));	//fetch event from user memory

	NKern::ThreadEnterCS();

	TInt err=Kern::AddEvent(event);

	NKern::ThreadLeaveCS();

	return err;

	}