FreeRTOS-Kernel/Demo/ColdFire_MCF52221_CodeWarrior/sources/ParTest/ParTest.c

/*
	FreeRTOS.org V5.0.3 - Copyright (C) 2003-2008 Richard Barry.

	This file is part of the FreeRTOS.org distribution.

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	it under the terms of the GNU General Public License as published by
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	(at your option) any later version.

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	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.

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	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.

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

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*/

/*
	Changes from V2.5.2

	+ All LED's are turned off to start.
*/


#include "FreeRTOS.h"
#include "task.h"
#include "partest.h"

#define partstNUM_LEDs	4

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

void vParTestInitialise( void )
{
    /* Enable signals as GPIO */
    MCF_GPIO_PTCPAR = 0
        | MCF_GPIO_PTCPAR_DTIN3_GPIO
        | MCF_GPIO_PTCPAR_DTIN2_GPIO
        | MCF_GPIO_PTCPAR_DTIN1_GPIO
        | MCF_GPIO_PTCPAR_DTIN0_GPIO;
    
    /* Enable signals as digital outputs */
    MCF_GPIO_DDRTC = 0
        | MCF_GPIO_DDRTC_DDRTC3
        | MCF_GPIO_DDRTC_DDRTC2
        | MCF_GPIO_DDRTC_DDRTC1
        | MCF_GPIO_DDRTC_DDRTC0;

	MCF_GPIO_PORTTC = 0x00; // TURN LEDS OFF
}
/*-----------------------------------------------------------*/

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

	if( uxLED < partstNUM_LEDs )
	{
		uxLEDMask = 1UL << uxLED;
		
		taskENTER_CRITICAL();
		{
			if( xValue )
			{
				MCF_GPIO_PORTTC |= uxLEDMask;
			}
			else
			{
				MCF_GPIO_PORTTC &= ~uxLEDMask;
			}
		}
		taskEXIT_CRITICAL();
	}
}
/*-----------------------------------------------------------*/

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

	if( uxLED < partstNUM_LEDs )
	{
		uxLEDMask = 1UL << uxLED;
		
		taskENTER_CRITICAL();
		{
			if( MCF_GPIO_PORTTC & uxLEDMask )
			{
				MCF_GPIO_PORTTC &= ~uxLEDMask;
			}
			else
			{
				MCF_GPIO_PORTTC |= uxLEDMask;
			}
		}
		taskEXIT_CRITICAL();
	}
}