// Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "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:

// omap3530/beagle_drivers/led/led.cpp

//

#include <kern_priv.h>

#include <beagle/beagle_gpio.h>

#include <assp/omap3530_assp/omap3530_gpio.h>

#include <beagle/variant.h>

#include <assp/omap3530_assp/omap3530_assp_priv.h>

#include <assp/omap3530_assp/omap3530_irqmap.h> // GPIO interrupts

#include <assp.h> // Required for definition of TIsr

static NTimer * heartBeatTimer;

static void ledIsr(TAny* aPtr)

	{									

	//make sure the led is always in the sma estate when we crash

	GPIO::SetOutputState(KGPIO_LED1, GPIO::ELow);

	Kern::Fault("User invoked crash via keypad",KErrDied);

	}

static void beatLedHeartBeat(TAny * ptr)

	{

	GPIO::TGpioState ledState;

	GPIO::GetOutputState(KGPIO_LED1, ledState);

	if(GPIO::EHigh == ledState)

		{

		GPIO::SetOutputState(KGPIO_LED1, GPIO::ELow);

		}

	else

		{

		GPIO::SetOutputState(KGPIO_LED1, GPIO::EHigh);

		}

	heartBeatTimer->Again(Variant::GetMsTickPeriod());

	}

DECLARE_STANDARD_EXTENSION()

	{

	//Set up the button to proivde a panic button invoking Fault()

	if(KErrNone != GPIO::SetPinDirection(KGPIO_UserButton, GPIO::EInput))

		return KErrArgument;

	GPIO::SetPinMode(KGPIO_UserButton, GPIO::EEnabled);

	GPIO::SetDebounceTime(KGPIO_UserButton, 500);

	if(KErrNone !=GPIO::BindInterrupt(KGPIO_UserButton, ledIsr,NULL))

		return KErrArgument;

	if(KErrNone !=GPIO::SetInterruptTrigger(KGPIO_UserButton, GPIO::EEdgeRising))

		return KErrArgument;

	if(KErrNone !=GPIO::EnableInterrupt(KGPIO_UserButton))

		{

		GPIO::UnbindInterrupt(KGPIO_UserButton);

		return KErrInUse;

		}		

	//setup the Led to flash at the system tick rate ( heartbeat) 

	heartBeatTimer = new NTimer(beatLedHeartBeat,NULL);

	if(KErrNone != GPIO::SetPinDirection(KGPIO_LED1, GPIO::EOutput))

			return KErrArgument;

	if(KErrNone != GPIO::SetPinDirection(KGPIO_LED0, GPIO::EOutput))

				return KErrArgument;

	GPIO::SetPinMode(KGPIO_LED0, GPIO::EEnabled);

	GPIO::SetPinMode(KGPIO_LED1, GPIO::EEnabled);

	GPIO::SetOutputState(KGPIO_LED0, GPIO::ELow);	

	heartBeatTimer->OneShot(Variant::GetMsTickPeriod(),ETrue);

	return KErrNone;	

	}