2 * FreeRTOS Kernel V10.0.0
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3 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software. If you wish to use our Amazon
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14 * FreeRTOS name, please do so in a fair use way that does not cause confusion.
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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18 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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19 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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23 * http://www.FreeRTOS.org
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24 * http://aws.amazon.com/freertos
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26 * 1 tab == 4 spaces!
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29 /* FreeRTOS.org includes. */
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30 #include "FreeRTOS.h"
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32 /* Demo application includes. */
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33 #include "partest.h"
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35 #define partstFIRST_IO ( ( unsigned long ) 0x04 )
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36 #define partstFIO2_BITS ( ( unsigned long ) 0x0000007C )
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37 #define partstFIO1_BITS ( ( unsigned long ) 0xB0000000 )
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38 #define partstNUM_LEDS ( 5 )
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39 #define partstALL_OUTPUTS_OFF ( ( unsigned long ) 0xff )
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41 /*-----------------------------------------------------------
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42 * Simple parallel port IO routines.
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43 *-----------------------------------------------------------*/
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45 void vParTestInitialise( void )
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47 /* LEDs on ports 1 and 2 to output. */
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48 GPIO2->FIODIR = partstFIO2_BITS;
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49 GPIO1->FIODIR = partstFIO1_BITS;
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51 /* Start will all LEDs off. */
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52 GPIO2->FIOCLR = partstFIO2_BITS;
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53 GPIO1->FIOCLR = partstFIO1_BITS;
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55 /*-----------------------------------------------------------*/
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57 void vParTestSetLED( unsigned long ulLEDIn, signed long xValue )
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59 unsigned long ulLED = partstFIRST_IO;
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61 /* Used to set and clear LEDs on FIO2. */
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63 if( ulLEDIn < partstNUM_LEDS )
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65 /* Rotate to the wanted bit of port */
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66 ulLED <<= ( unsigned long ) ulLEDIn;
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68 /* Set of clear the output. */
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71 GPIO2->FIOCLR = ulLED;
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75 GPIO2->FIOSET = ulLED;
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79 /*-----------------------------------------------------------*/
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81 void vParTestToggleLED( unsigned long ulLEDIn )
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83 unsigned long ulLED = partstFIRST_IO, ulCurrentState;
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85 /* Used to toggle LEDs on FIO2. */
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87 if( ulLEDIn < partstNUM_LEDS )
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89 /* Rotate to the wanted bit of port 0. Only P10 to P13 have an LED
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91 ulLED <<= ( unsigned long ) ulLEDIn;
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93 /* If this bit is already set, clear it, and vice versa. */
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94 ulCurrentState = GPIO2->FIOPIN;
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95 if( ulCurrentState & ulLED )
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97 GPIO2->FIOCLR = ulLED;
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101 GPIO2->FIOSET = ulLED;
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105 /*-----------------------------------------------------------*/
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107 long lParTestGetLEDState( void )
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109 /* Returns the state of the LEDs on FIO1. */
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110 if( ( GPIO1->FIOPIN & partstFIO1_BITS ) != 0 )
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119 /*-----------------------------------------------------------*/
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121 void vParTestSetLEDState( long lState )
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123 /* Used to set and clear the LEDs on FIO1. */
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124 if( lState != pdFALSE )
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126 GPIO1->FIOSET = partstFIO1_BITS;
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130 GPIO1->FIOCLR = partstFIO1_BITS;
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133 /*-----------------------------------------------------------*/
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