/* | |
FreeRTOS V7.0.0 - Copyright (C) 2011 Real Time Engineers Ltd. | |
*************************************************************************** | |
* * | |
* FreeRTOS tutorial books are available in pdf and paperback. * | |
* Complete, revised, and edited pdf reference manuals are also * | |
* available. * | |
* * | |
* Purchasing FreeRTOS documentation will not only help you, by * | |
* ensuring you get running as quickly as possible and with an * | |
* in-depth knowledge of how to use FreeRTOS, it will also help * | |
* the FreeRTOS project to continue with its mission of providing * | |
* professional grade, cross platform, de facto standard solutions * | |
* for microcontrollers - completely free of charge! * | |
* * | |
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< * | |
* * | |
* Thank you for using FreeRTOS, and thank you for your support! * | |
* * | |
*************************************************************************** | |
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. See the GNU General Public License for | |
more details. You should have received a copy of the GNU General Public | |
License and the FreeRTOS license exception along with FreeRTOS; if not it | |
can be viewed here: http://www.freertos.org/a00114.html and also obtained | |
by writing to Richard Barry, contact details for whom are available on the | |
FreeRTOS WEB site. | |
1 tab == 4 spaces! | |
http://www.FreeRTOS.org - Documentation, latest information, license and | |
contact details. | |
http://www.SafeRTOS.com - A version that is certified for use in safety | |
critical systems. | |
http://www.OpenRTOS.com - Commercial support, development, porting, | |
licensing and training services. | |
*/ | |
/*----------------------------------------------------------- | |
* Simple parallel port IO routines. | |
*-----------------------------------------------------------*/ | |
/* Kernel includes. */ | |
#include "FreeRTOS.h" | |
#include "task.h" | |
/* Library includes. */ | |
#include "mss_gpio.h" | |
#define partstMAX_LEDS 8 | |
static volatile unsigned long ulGPIOState = 0UL; | |
/*-----------------------------------------------------------*/ | |
void vParTestInitialise( void ) | |
{ | |
long x; | |
/* Initialise the GPIO */ | |
MSS_GPIO_init(); | |
/* Set up GPIO for the LEDs. */ | |
for( x = 0; x < partstMAX_LEDS; x++ ) | |
{ | |
MSS_GPIO_config( ( mss_gpio_id_t ) x , MSS_GPIO_OUTPUT_MODE ); | |
} | |
/* All LEDs start off. */ | |
ulGPIOState = 0xffffffffUL; | |
MSS_GPIO_set_outputs( ulGPIOState ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue ) | |
{ | |
if( uxLED < partstMAX_LEDS ) | |
{ | |
/* A critical section is used as the LEDs are also accessed from an | |
interrupt. */ | |
taskENTER_CRITICAL(); | |
{ | |
if( xValue == pdTRUE ) | |
{ | |
ulGPIOState &= ~( 1UL << uxLED ); | |
} | |
else | |
{ | |
ulGPIOState |= ( 1UL << uxLED ); | |
} | |
MSS_GPIO_set_outputs( ulGPIOState ); | |
} | |
taskEXIT_CRITICAL(); | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestSetLEDFromISR( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue ) | |
{ | |
unsigned portBASE_TYPE uxInterruptFlags; | |
uxInterruptFlags = portSET_INTERRUPT_MASK_FROM_ISR(); | |
{ | |
if( uxLED < partstMAX_LEDS ) | |
{ | |
if( xValue == pdTRUE ) | |
{ | |
ulGPIOState &= ~( 1UL << uxLED ); | |
} | |
else | |
{ | |
ulGPIOState |= ( 1UL << uxLED ); | |
} | |
MSS_GPIO_set_outputs( ulGPIOState ); | |
} | |
} | |
portCLEAR_INTERRUPT_MASK_FROM_ISR( uxInterruptFlags ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) | |
{ | |
if( uxLED < partstMAX_LEDS ) | |
{ | |
/* A critical section is used as the LEDs are also accessed from an | |
interrupt. */ | |
taskENTER_CRITICAL(); | |
{ | |
if( ( ulGPIOState & ( 1UL << uxLED ) ) != 0UL ) | |
{ | |
ulGPIOState &= ~( 1UL << uxLED ); | |
} | |
else | |
{ | |
ulGPIOState |= ( 1UL << uxLED ); | |
} | |
MSS_GPIO_set_outputs( ulGPIOState ); | |
} | |
taskEXIT_CRITICAL(); | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
long lParTestGetLEDState( unsigned long ulLED ) | |
{ | |
long lReturn = pdFALSE; | |
if( ulLED < partstMAX_LEDS ) | |
{ | |
taskENTER_CRITICAL(); | |
{ | |
if( ( ulGPIOState & ( 1UL << ulLED ) ) == 0UL ) | |
{ | |
lReturn = pdTRUE; | |
} | |
} | |
taskEXIT_CRITICAL(); | |
} | |
return lReturn; | |
} | |
/*-----------------------------------------------------------*/ |