| Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 1 | /* ----------------------------------------------------------------------------
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| 2 | * ATMEL Microcontroller Software Support
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| 3 | * ----------------------------------------------------------------------------
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| 4 | * Copyright (c) 2008, Atmel Corporation
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| 5 | *
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| 6 | * All rights reserved.
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| 7 | *
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| 8 | * Redistribution and use in source and binary forms, with or without
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| 9 | * modification, are permitted provided that the following conditions are met:
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| 10 | *
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| 11 | * - Redistributions of source code must retain the above copyright notice,
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| 12 | * this list of conditions and the disclaimer below.
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| 13 | *
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| 14 | * Atmel's name may not be used to endorse or promote products derived from
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| 15 | * this software without specific prior written permission.
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| 16 | *
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| 17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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| 20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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| 23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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| 26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | * ----------------------------------------------------------------------------
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| 28 | */
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| 29 |
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| 30 | /**
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| 31 | * \file
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| 32 | */
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| 33 |
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| 34 | /*------------------------------------------------------------------------------
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| 35 | * Headers
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| 36 | *------------------------------------------------------------------------------*/
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| 37 |
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| 38 | #include "board.h"
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| 39 |
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| 40 | /*------------------------------------------------------------------------------
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| 41 | * Local Variables
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| 42 | *------------------------------------------------------------------------------*/
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| 43 |
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| 44 | #ifdef PINS_LEDS
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| 45 | static const Pin pinsLeds[] = { PINS_LEDS } ;
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| 46 | static const uint32_t numLeds = PIO_LISTSIZE( pinsLeds ) ;
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| 47 | #endif
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| 48 |
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| 49 | /*------------------------------------------------------------------------------
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| 50 | * Global Functions
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| 51 | *------------------------------------------------------------------------------*/
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| 52 |
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| 53 | /**
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| 54 | * Configures the pin associated with the given LED number. If the LED does
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| 55 | * not exist on the board, the function does nothing.
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| 56 | * \param led Number of the LED to configure.
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| 57 | * \return 1 if the LED exists and has been configured; otherwise 0.
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| 58 | */
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| 59 | extern uint32_t LED_Configure( uint32_t dwLed )
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| 60 | {
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| 61 | #ifdef PINS_LEDS
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| 62 | // Check that LED exists
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| 63 | if ( dwLed >= numLeds)
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| 64 | {
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| 65 |
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| 66 | return 0;
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| 67 | }
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| 68 |
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| 69 | // Configure LED
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| 70 | return ( PIO_Configure( &pinsLeds[dwLed], 1 ) ) ;
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| 71 | #else
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| 72 | return 0 ;
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| 73 | #endif
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| 74 | }
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| 75 |
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| 76 | /**
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| 77 | * Turns the given LED on if it exists; otherwise does nothing.
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| 78 | * \param led Number of the LED to turn on.
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| 79 | * \return 1 if the LED has been turned on; 0 otherwise.
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| 80 | */
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| 81 | extern uint32_t LED_Set( uint32_t dwLed )
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| 82 | {
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| 83 | #ifdef PINS_LEDS
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| 84 | /* Check if LED exists */
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| 85 | if ( dwLed >= numLeds )
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| 86 | {
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| 87 | return 0 ;
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| 88 | }
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| 89 |
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| 90 | /* Turn LED on */
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| 91 | if ( pinsLeds[dwLed].type == PIO_OUTPUT_0 )
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| 92 | {
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| 93 |
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| 94 | PIO_Set( &pinsLeds[dwLed] ) ;
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| 95 | }
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| 96 | else
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| 97 | {
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| 98 | PIO_Clear( &pinsLeds[dwLed] ) ;
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| 99 | }
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| 100 |
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| 101 | return 1 ;
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| 102 | #else
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| 103 | return 0 ;
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| 104 | #endif
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| 105 | }
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| 106 |
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| 107 | /**
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| 108 | * Turns a LED off.
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| 109 | *
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| 110 | * \param led Number of the LED to turn off.
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| 111 | * \return 1 if the LED has been turned off; 0 otherwise.
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| 112 | */
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| 113 | extern uint32_t LED_Clear( uint32_t dwLed )
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| 114 | {
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| 115 | #ifdef PINS_LEDS
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| 116 | /* Check if LED exists */
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| 117 | if ( dwLed >= numLeds )
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| 118 | {
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| 119 | return 0 ;
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| 120 | }
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| 121 |
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| 122 | /* Turn LED off */
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| 123 | if ( pinsLeds[dwLed].type == PIO_OUTPUT_0 )
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| 124 | {
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| 125 | PIO_Clear( &pinsLeds[dwLed] ) ;
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| 126 | }
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| 127 | else
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| 128 | {
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| 129 | PIO_Set( &pinsLeds[dwLed] ) ;
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| 130 | }
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| 131 |
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| 132 | return 1 ;
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| 133 | #else
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| 134 | return 0 ;
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| 135 | #endif
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| 136 | }
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| 137 |
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| 138 | /**
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| 139 | * Toggles the current state of a LED.
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| 140 | *
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| 141 | * \param led Number of the LED to toggle.
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| 142 | * \return 1 if the LED has been toggled; otherwise 0.
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| 143 | */
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| 144 | extern uint32_t LED_Toggle( uint32_t dwLed )
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| 145 | {
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| 146 | #ifdef PINS_LEDS
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| 147 | /* Check if LED exists */
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| 148 | if ( dwLed >= numLeds )
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| 149 | {
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| 150 | return 0 ;
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| 151 | }
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| 152 |
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| 153 | /* Toggle LED */
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| 154 | if ( PIO_GetOutputDataStatus( &pinsLeds[dwLed] ) )
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| 155 | {
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| 156 | PIO_Clear( &pinsLeds[dwLed] ) ;
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| 157 | }
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| 158 | else
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| 159 | {
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| 160 | PIO_Set( &pinsLeds[dwLed] ) ;
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| 161 | }
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| 162 |
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| 163 | return 1 ;
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| 164 | #else
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| 165 | return 0 ;
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| 166 | #endif
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| 167 | }
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| 168 |
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