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FreeRTOS-Kernel/Demo/ARM7_AT91SAM7X256_Eclipse/RTOSDemo/ParTest/ParTest.c
2007-11-21 18:29:41 +00:00

102 lines
3.5 KiB
C

/*
FreeRTOS.org V4.6.1 - Copyright (C) 2003-2007 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.
***************************************************************************
See http://www.FreeRTOS.org for documentation, latest information, license
and contact details. Please ensure to read the configuration and relevant
port sections of the online documentation.
Also see http://www.SafeRTOS.com a version that has been certified for use
in safety critical systems, plus commercial licensing, development and
support options.
***************************************************************************
*/
/* 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 portLONG 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 ] );
}