FreeRTOS-Kernel/Demo/ColdFire_MCF52233_Eclipse/RTOSDemo/ParTest/ParTest.c

/*
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    the terms of the GNU General Public License (version 2) as published by the
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*/

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

#define partstNUM_LEDs	4

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

void vParTestInitialise( void )
{
    /* Ensure LED outputs are set to GPIO */
    MCF_GPIO_PTCPAR = MCF_GPIO_PTCPAR_DTIN3_GPIO | MCF_GPIO_PTCPAR_DTIN2_GPIO | MCF_GPIO_PTCPAR_DTIN1_GPIO | MCF_GPIO_PTCPAR_DTIN0_GPIO;

    /* Set GPIO to outputs. */
    MCF_GPIO_DDRTC = MCF_GPIO_DDRTC_DDRTC3 | MCF_GPIO_DDRTC_DDRTC2 | MCF_GPIO_DDRTC_DDRTC1 | MCF_GPIO_DDRTC_DDRTC0;

    /* Start with all LEDs off. */
	MCF_GPIO_PORTTC = 0x00;
}
/*-----------------------------------------------------------*/

void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
	if( uxLED < partstNUM_LEDs )
	{
		if( xValue != 0 )
		{
			taskENTER_CRITICAL();
				MCF_GPIO_PORTTC |= ( 1 << uxLED );
			taskEXIT_CRITICAL();
		}
		else
		{
			taskENTER_CRITICAL();
				MCF_GPIO_PORTTC &= ~( 1 << uxLED );
			taskEXIT_CRITICAL();
		}
	}
}
/*-----------------------------------------------------------*/

void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
	if( uxLED < partstNUM_LEDs )
	{
		taskENTER_CRITICAL();
		{
			if( ( MCF_GPIO_PORTTC & ( 1 << uxLED ) ) == ( unsigned portCHAR ) 0 )
			{
				MCF_GPIO_PORTTC |= ( 1 << uxLED );
			}
			else
			{
				MCF_GPIO_PORTTC &= ~( 1 << uxLED );
			}
		}
		taskEXIT_CRITICAL();
	}
}
/*-----------------------------------------------------------*/

unsigned portBASE_TYPE uxParTestGetLED( unsigned portBASE_TYPE uxLED )
{
unsigned portBASE_TYPE uxReturn = pdFALSE;

	if( uxLED < partstNUM_LEDs )
	{
		if( ( MCF_GPIO_PORTTC & ( 1 << uxLED ) ) != 0 )
		{
			uxReturn = pdTRUE;
		}
	}

	return uxReturn;
}