/*
    FreeRTOS V7.5.0 - Copyright (C) 2013 Real Time Engineers Ltd.

    VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.

    ***************************************************************************
     *                                                                       *
     *    FreeRTOS provides completely free yet professionally developed,    *
     *    robust, strictly quality controlled, supported, and cross          *
     *    platform software that has become a de facto standard.             *
     *                                                                       *
     *    Help yourself get started quickly and support the FreeRTOS         *
     *    project by purchasing a FreeRTOS tutorial book, reference          *
     *    manual, or both from: http://www.FreeRTOS.org/Documentation        *
     *                                                                       *
     *    Thank you!                                                         *
     *                                                                       *
    ***************************************************************************

    This file is part of the FreeRTOS distribution.

    FreeRTOS is free software; you can redistribute it and/or modify it under
    the terms of the GNU General Public License (version 2) as published by the
    Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.

    >>! NOTE: The modification to the GPL is included to allow you to distribute
    >>! a combined work that includes FreeRTOS without being obliged to provide
    >>! the source code for proprietary components outside of the FreeRTOS
    >>! kernel.

    FreeRTOS 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.  Full license text is available from the following
    link: http://www.freertos.org/a00114.html

    1 tab == 4 spaces!

    ***************************************************************************
     *                                                                       *
     *    Having a problem?  Start by reading the FAQ "My application does   *
     *    not run, what could be wrong?"                                     *
     *                                                                       *
     *    http://www.FreeRTOS.org/FAQHelp.html                               *
     *                                                                       *
    ***************************************************************************

    http://www.FreeRTOS.org - Documentation, books, training, latest versions,
    license and Real Time Engineers Ltd. contact details.

    http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
    including FreeRTOS+Trace - an indispensable productivity tool, a DOS
    compatible FAT file system, and our tiny thread aware UDP/IP stack.

    http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
    Integrity Systems to sell under the OpenRTOS brand.  Low cost OpenRTOS
    licenses offer ticketed support, indemnification and middleware.

    http://www.SafeRTOS.com - High Integrity Systems also provide a safety
    engineered and independently SIL3 certified version for use in safety and
    mission critical applications that require provable dependability.

    1 tab == 4 spaces!
*/

/* 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();
}