/*
	FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry.

	This file is part of the FreeRTOS.org distribution.

	FreeRTOS.org is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	FreeRTOS.org is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with FreeRTOS.org; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

	A special exception to the GPL can be applied should you wish to distribute
	a combined work that includes FreeRTOS.org, without being obliged to provide
	the source code for any proprietary components.  See the licensing section 
	of http://www.FreeRTOS.org for full details of how and when the exception
	can be applied.

    ***************************************************************************
    ***************************************************************************
    *                                                                         *
    * Get the FreeRTOS eBook!  See http://www.FreeRTOS.org/Documentation      *
	*                                                                         *
	* This is a concise, step by step, 'hands on' guide that describes both   *
	* general multitasking concepts and FreeRTOS specifics. It presents and   *
	* explains numerous examples that are written using the FreeRTOS API.     *
	* Full source code for all the examples is provided in an accompanying    *
	* .zip file.                                                              *
    *                                                                         *
    ***************************************************************************
    ***************************************************************************

	Please ensure to read the configuration and relevant port sections of the
	online documentation.

	http://www.FreeRTOS.org - Documentation, latest information, license and 
	contact details.

	http://www.SafeRTOS.com - A version that is certified for use in safety 
	critical systems.

	http://www.OpenRTOS.com - Commercial support, development, porting, 
	licensing and training services.
*/

/* Scheduler includes. */
#include "FreeRTOS.h"

/* Demo app includes. */
#include "partest.h"

#define ptOUTPUT 	0
#define ptALL_OFF	0

unsigned portBASE_TYPE uxOutput;

/*-----------------------------------------------------------
 * Simple parallel port IO routines.
 *-----------------------------------------------------------*/

void vParTestInitialise( void )
{
	/* The explorer 16 board has LED's on port A.  All bits are set as output
	so PORTA is read-modified-written directly.  Two pins have change 
	notification pullups that need disabling. */
	CNPU2bits.CN22PUE = 0;
	CNPU2bits.CN23PUE = 0;
	TRISA = ptOUTPUT;
	PORTA = ptALL_OFF;
	uxOutput = ptALL_OFF;
}
/*-----------------------------------------------------------*/

void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
unsigned portBASE_TYPE uxLEDBit;

	/* Which port A bit is being modified? */
	uxLEDBit = 1 << uxLED;

	if( xValue )
	{
		/* Turn the LED on. */
		portENTER_CRITICAL();
		{
			uxOutput |= uxLEDBit;
			PORTA = uxOutput;
		}
		portEXIT_CRITICAL();
	}
	else
	{
		/* Turn the LED off. */
		portENTER_CRITICAL();
		{
			uxOutput &= ~uxLEDBit;
			PORTA = uxOutput;
		}
		portEXIT_CRITICAL();
	}
}
/*-----------------------------------------------------------*/

void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
unsigned portBASE_TYPE uxLEDBit;

	uxLEDBit = 1 << uxLED;
	portENTER_CRITICAL();
	{
		/* If the LED is already on - turn it off.  If the LED is already
		off, turn it on. */
		if( uxOutput & uxLEDBit )
		{
			uxOutput &= ~uxLEDBit;
			PORTA = uxOutput;
		}
		else
		{
			uxOutput |= uxLEDBit;
			PORTA = uxOutput;
		}
	}
	portEXIT_CRITICAL();
}