/*

* Copyright (c) 2010 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 <naviengine_priv.h>

#include <gpio.h>

#include "d_gpio.h"

#include "d_gpio_dev.h"

#define ETestStaticExtension 0x80000000

_LIT(KGpioDfscQueName, "D_GPIO_DFC");

DECLARE_STANDARD_LDD()

	{

	return new DGpioFactory;

	}

DGpioFactory::DGpioFactory()

	{

	// Set version number for this device

	iVersion=RGpio::VersionRequired();

	iParseMask=0;

	}

TInt DGpioFactory::Install()

	{

	return SetName(&RGpio::Name());

	}

DGpioFactory::~DGpioFactory()

   	{

   	}

void DGpioFactory::GetCaps(TDes8& aDes) const

	{

	// Create a capabilities object

	RGpio::TCaps caps;

	caps.iVersion = iVersion;

	// Write it back to user memory

	Kern::InfoCopy(aDes,(TUint8*)&caps,sizeof(caps));

	}

TInt DGpioFactory::Create(DLogicalChannelBase*& aChannel)

	{

	aChannel=new DGpioChannel;

	if(!aChannel)

		return KErrNoMemory;

	return KErrNone;

	}

DGpioChannel::DGpioChannel()

	{

	iClient=&Kern::CurrentThread();

	iClient->Open();

	}

TInt DGpioChannel::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& aVer)

	{

	TDynamicDfcQue* dfcq = NULL; 

	TInt r = Kern::DynamicDfcQCreate(dfcq, 27, KGpioDfscQueName); 

	if(r == KErrNone) 

		{ 

		iDfcQ = dfcq; 

		SetDfcQ(iDfcQ); 

		iMsgQ.Receive(); 

		} 

	return r;

	}

DGpioChannel::~DGpioChannel()

	{

	((TDynamicDfcQue*)iDfcQ)->Destroy();

	Kern::SafeClose((DObject*&)iClient,NULL);

	}

TInt DGpioChannel::RequestUserHandle(DThread* aThread, TOwnerType aType)

	{

	// Make sure that only our client can get a handle

	if (aType!=EOwnerThread || aThread!=iClient)

		return KErrAccessDenied;

	return KErrNone;

	}

void DGpioChannel::HandleMsg(TMessageBase* aMsg)

	{

	TThreadMessage& m=*(TThreadMessage*)aMsg;

	// Get message type

	TInt id=m.iValue;

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

	if (id==(TInt)ECloseMsg)

		{

		m.Complete(KErrNone, EFalse);

		return;

		}

	if (id==KMaxTInt)

		{

		m.Complete(KErrNone,ETrue);

		return;

		}

	if (id<0)

		{

		TInt r=DoControl(id);

		m.Complete(r, KErrNotSupported);

		}

	else

		{

		// DoControl

		TInt r=DoControl(id);

		m.Complete(r,ETrue);

		}

	}

/**

  Process synchronous 'control' requests

*/

TInt DGpioChannel::DoControl(TInt aFunction)

	{

	TInt r=KErrNone;

	switch (aFunction)

		{

	case RGpio::ECallStaticExtension:

		r = GPIO::StaticExtension(0, ETestStaticExtension, NULL, NULL);

		break;

	default:

		r = KErrNotSupported;

		break;

		}

	return r;

	}