2 FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 This file is part of the FreeRTOS distribution.
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9 FreeRTOS is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License (version 2) as published by the
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11 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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13 ***************************************************************************
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14 >>! NOTE: The modification to the GPL is included to allow you to !<<
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15 >>! distribute a combined work that includes FreeRTOS without being !<<
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16 >>! obliged to provide the source code for proprietary components !<<
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17 >>! outside of the FreeRTOS kernel. !<<
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18 ***************************************************************************
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20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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23 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * FreeRTOS provides completely free yet professionally developed, *
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28 * robust, strictly quality controlled, supported, and cross *
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29 * platform software that is more than just the market leader, it *
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30 * is the industry's de facto standard. *
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32 * Help yourself get started quickly while simultaneously helping *
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33 * to support the FreeRTOS project by purchasing a FreeRTOS *
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34 * tutorial book, reference manual, or both: *
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35 * http://www.FreeRTOS.org/Documentation *
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37 ***************************************************************************
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39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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40 the FAQ page "My application does not run, what could be wrong?". Have you
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41 defined configASSERT()?
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43 http://www.FreeRTOS.org/support - In return for receiving this top quality
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44 embedded software for free we request you assist our global community by
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45 participating in the support forum.
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47 http://www.FreeRTOS.org/training - Investing in training allows your team to
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48 be as productive as possible as early as possible. Now you can receive
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49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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50 Ltd, and the world's leading authority on the world's leading RTOS.
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52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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61 licenses offer ticketed support, indemnification and commercial middleware.
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63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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64 engineered and independently SIL3 certified version for use in safety and
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65 mission critical applications that require provable dependability.
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70 /*-----------------------------------------------------------
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71 * Simple parallel port IO routines.
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72 *-----------------------------------------------------------*/
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74 /* Kernel includes. */
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75 #include "FreeRTOS.h"
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77 /* Demo application includes. */
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78 #include "partest.h"
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80 /* Library includes. */
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81 #include "xgpio_l.h"
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83 /* Misc hardware specific definitions. */
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84 #define partstALL_AS_OUTPUT 0x00
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85 #define partstCHANNEL_1 0x01
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86 #define partstMAX_4BIT_LED 0x03
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88 /* The outputs are split into two IO sections, these variables maintain the
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89 current value of either section. */
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90 static unsigned portBASE_TYPE uxCurrentOutput4Bit, uxCurrentOutput5Bit;
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92 /*-----------------------------------------------------------*/
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94 * Setup the IO for the LED outputs.
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96 void vParTestInitialise( void )
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98 /* Set both sets of LED's on the demo board to outputs. */
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99 XGpio_mSetDataDirection( XPAR_LEDS_4BIT_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );
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100 XGpio_mSetDataDirection( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, partstALL_AS_OUTPUT );
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102 /* Start with all outputs off. */
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103 uxCurrentOutput4Bit = 0;
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104 XGpio_mSetDataReg( XPAR_LEDS_4BIT_BASEADDR, partstCHANNEL_1, 0x00 );
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105 uxCurrentOutput5Bit = 0;
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106 XGpio_mSetDataReg( XPAR_LEDS_POSITIONS_BASEADDR, partstCHANNEL_1, 0x00 );
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108 /*-----------------------------------------------------------*/
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110 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
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112 unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;
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114 portENTER_CRITICAL();
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116 /* Which IO section does the LED being set/cleared belong to? The
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117 4 bit or 5 bit outputs? */
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118 if( uxLED <= partstMAX_4BIT_LED )
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120 uxBaseAddress = XPAR_LEDS_4BIT_BASEADDR;
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121 puxCurrentValue = &uxCurrentOutput4Bit;
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125 uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;
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126 puxCurrentValue = &uxCurrentOutput5Bit;
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127 uxLED -= partstMAX_4BIT_LED;
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130 /* Setup the bit mask accordingly. */
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131 uxLED = 0x01 << uxLED;
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133 /* Maintain the current output value. */
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136 *puxCurrentValue |= uxLED;
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140 *puxCurrentValue &= ~uxLED;
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143 /* Write the value to the port. */
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144 XGpio_mSetDataReg( uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );
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146 portEXIT_CRITICAL();
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148 /*-----------------------------------------------------------*/
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150 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
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152 unsigned portBASE_TYPE uxBaseAddress, *puxCurrentValue;
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154 portENTER_CRITICAL();
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156 /* Which IO section does the LED being toggled belong to? The
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157 4 bit or 5 bit outputs? */
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158 if( uxLED <= partstMAX_4BIT_LED )
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160 uxBaseAddress = XPAR_LEDS_4BIT_BASEADDR;
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161 puxCurrentValue = &uxCurrentOutput4Bit;
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165 uxBaseAddress = XPAR_LEDS_POSITIONS_BASEADDR;
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166 puxCurrentValue = &uxCurrentOutput5Bit;
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167 uxLED -= partstMAX_4BIT_LED;
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170 /* Setup the bit mask accordingly. */
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171 uxLED = 0x01 << uxLED;
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173 /* Maintain the current output value. */
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174 if( *puxCurrentValue & uxLED )
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176 *puxCurrentValue &= ~uxLED;
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180 *puxCurrentValue |= uxLED;
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183 /* Write the value to the port. */
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184 XGpio_mSetDataReg(uxBaseAddress, partstCHANNEL_1, *puxCurrentValue );
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186 portEXIT_CRITICAL();
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