2 FreeRTOS V7.5.0 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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6 ***************************************************************************
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8 * FreeRTOS provides completely free yet professionally developed, *
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9 * robust, strictly quality controlled, supported, and cross *
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10 * platform software that has become a de facto standard. *
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12 * Help yourself get started quickly and support the FreeRTOS *
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13 * project by purchasing a FreeRTOS tutorial book, reference *
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14 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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18 ***************************************************************************
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20 This file is part of the FreeRTOS distribution.
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22 FreeRTOS is free software; you can redistribute it and/or modify it under
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23 the terms of the GNU General Public License (version 2) as published by the
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24 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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26 >>! NOTE: The modification to the GPL is included to allow you to distribute
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27 >>! a combined work that includes FreeRTOS without being obliged to provide
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28 >>! the source code for proprietary components outside of the FreeRTOS
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31 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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32 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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33 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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34 link: http://www.freertos.org/a00114.html
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38 ***************************************************************************
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40 * Having a problem? Start by reading the FAQ "My application does *
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41 * not run, what could be wrong?" *
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43 * http://www.FreeRTOS.org/FAQHelp.html *
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45 ***************************************************************************
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47 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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48 license and Real Time Engineers Ltd. contact details.
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50 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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51 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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52 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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54 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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55 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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56 licenses offer ticketed support, indemnification and middleware.
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58 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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59 engineered and independently SIL3 certified version for use in safety and
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60 mission critical applications that require provable dependability.
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65 /*-----------------------------------------------------------
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66 * Simple parallel port IO routines.
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67 *-----------------------------------------------------------*/
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69 /* Kernel includes. */
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70 #include "FreeRTOS.h"
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73 /* Library includes. */
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74 #include "mss_gpio.h"
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76 #define partstMAX_LEDS 8
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78 static volatile unsigned long ulGPIOState = 0UL;
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80 /*-----------------------------------------------------------*/
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82 void vParTestInitialise( void )
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86 /* Initialise the GPIO */
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89 /* Set up GPIO for the LEDs. */
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90 for( x = 0; x < partstMAX_LEDS; x++ )
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92 MSS_GPIO_config( ( mss_gpio_id_t ) x , MSS_GPIO_OUTPUT_MODE );
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95 /* All LEDs start off. */
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96 ulGPIOState = 0xffffffffUL;
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97 MSS_GPIO_set_outputs( ulGPIOState );
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99 /*-----------------------------------------------------------*/
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101 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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103 if( uxLED < partstMAX_LEDS )
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105 /* A critical section is used as the LEDs are also accessed from an
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107 taskENTER_CRITICAL();
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109 if( xValue == pdTRUE )
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111 ulGPIOState &= ~( 1UL << uxLED );
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115 ulGPIOState |= ( 1UL << uxLED );
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118 MSS_GPIO_set_outputs( ulGPIOState );
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120 taskEXIT_CRITICAL();
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123 /*-----------------------------------------------------------*/
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125 void vParTestSetLEDFromISR( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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127 unsigned portBASE_TYPE uxInterruptFlags;
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129 uxInterruptFlags = portSET_INTERRUPT_MASK_FROM_ISR();
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131 if( uxLED < partstMAX_LEDS )
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133 if( xValue == pdTRUE )
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135 ulGPIOState &= ~( 1UL << uxLED );
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139 ulGPIOState |= ( 1UL << uxLED );
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142 MSS_GPIO_set_outputs( ulGPIOState );
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145 portCLEAR_INTERRUPT_MASK_FROM_ISR( uxInterruptFlags );
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147 /*-----------------------------------------------------------*/
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149 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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151 if( uxLED < partstMAX_LEDS )
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153 /* A critical section is used as the LEDs are also accessed from an
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155 taskENTER_CRITICAL();
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157 if( ( ulGPIOState & ( 1UL << uxLED ) ) != 0UL )
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159 ulGPIOState &= ~( 1UL << uxLED );
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163 ulGPIOState |= ( 1UL << uxLED );
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166 MSS_GPIO_set_outputs( ulGPIOState );
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168 taskEXIT_CRITICAL();
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171 /*-----------------------------------------------------------*/
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173 long lParTestGetLEDState( unsigned long ulLED )
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175 long lReturn = pdFALSE;
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177 if( ulLED < partstMAX_LEDS )
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179 taskENTER_CRITICAL();
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181 if( ( ulGPIOState & ( 1UL << ulLED ) ) == 0UL )
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186 taskEXIT_CRITICAL();
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191 /*-----------------------------------------------------------*/
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