FreeRTOS/Demo/ARM7_AT91SAM7X256_Eclipse/RTOSDemo/ParTest/ParTest.c

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*/

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

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

/*-----------------------------------------------------------
 * Simple parallel port IO routines for the LED's.  LED's can be set, cleared
 * or toggled.
 *-----------------------------------------------------------*/

#define partstNUM_LEDS		( 4 )
#define partstALL_LEDS		( ulLED_Mask[ 0 ] | ulLED_Mask[ 1 ] | ulLED_Mask[ 2 ] | ulLED_Mask[ 3 ] )
const unsigned long 	ulLED_Mask[ partstNUM_LEDS ]= { (1<<19), (1<<20), (1<<21), (1<<22) };


void vParTestInitialise( void )
{	
	/* Configure the PIO Lines corresponding to LED1 to LED4 to be outputs. */
	AT91C_BASE_PIOB->PIO_PER = partstALL_LEDS; 
	AT91C_BASE_PIOB->PIO_OER = partstALL_LEDS; 

	/* Start with all LED's off. */
    AT91C_BASE_PIOB->PIO_SODR = partstALL_LEDS;
}
/*-----------------------------------------------------------*/

void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
{
	if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
	{
		if( xValue )
		{
			AT91C_BASE_PIOB->PIO_SODR = ulLED_Mask[ uxLED ];
		}
		else
		{
			AT91C_BASE_PIOB->PIO_CODR = ulLED_Mask[ uxLED ];
		}
	}
}
/*-----------------------------------------------------------*/

void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
{
	if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
	{
		if( AT91C_BASE_PIOB->PIO_PDSR & ulLED_Mask[ uxLED ] )
		{
			AT91C_BASE_PIOB->PIO_CODR = ulLED_Mask[ uxLED ];
		}
		else
		{
			AT91C_BASE_PIOB->PIO_SODR = ulLED_Mask[ uxLED ];
		}
	}
}
/*-----------------------------------------------------------*/

unsigned portBASE_TYPE uxParTestGetLED( void )
{
	/* Return the value of LED DS4 for use by the WEB server. */
	return !( AT91C_BASE_PIOB->PIO_PDSR & ulLED_Mask[ partstNUM_LEDS - 1 ] );
}