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109 lines
2.8 KiB
C
109 lines
2.8 KiB
C
/*
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* Copyright (C) 2016 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @defgroup drivers_led Control on-board LEDs
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* @ingroup drivers
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* @brief Access macros to control the on-board LEDs
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*
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* This header contains a set of macros for controlling the on-board LEDs of
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* a board. The LEDs are enumerated, starting from LED0 to LED7. As most
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* platforms have a different number of LEDs, the existing ones are mapped onto
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* the lowest LED numbers, while the higher LED numbers will simply be empty
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* defines. This ensures, that the LED macros are portable to any platform with
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* any number of LEDs.
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*
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* Providing access macros to 8 LEDs is a random decision, as currently 8 is the
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* maximum number of on-board LEDs found on any board in RIOT (stm32f3discovery).
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*
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* @{
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*
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* @file
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* @brief Macros for controlling the on-board LEDs
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*/
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#ifndef LED_H_
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#define LED_H_
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#include "board.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief LED fallback macros
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* @{
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*/
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#ifndef LED0_ON
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#define LED0_ON /* defined empty */
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#define LED0_OFF /* defined empty */
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#define LED0_TOGGLE /* defined empty */
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#endif
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#ifndef LED1_ON
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#define LED1_ON /* defined empty */
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#define LED1_OFF /* defined empty */
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#define LED1_TOGGLE /* defined empty */
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#endif
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#ifndef LED2_ON
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#define LED2_ON /* defined empty */
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#define LED2_OFF /* defined empty */
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#define LED2_TOGGLE /* defined empty */
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#endif
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#ifndef LED3_ON
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#define LED3_ON /* defined empty */
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#define LED3_OFF /* defined empty */
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#define LED3_TOGGLE /* defined empty */
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#endif
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#ifndef LED4_ON
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#define LED4_ON /* defined empty */
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#define LED4_OFF /* defined empty */
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#define LED4_TOGGLE /* defined empty */
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#endif
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#ifndef LED5_ON
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#define LED5_ON /* defined empty */
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#define LED5_OFF /* defined empty */
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#define LED5_TOGGLE /* defined empty */
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#endif
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#ifndef LED6_ON
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#define LED6_ON /* defined empty */
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#define LED6_OFF /* defined empty */
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#define LED6_TOGGLE /* defined empty */
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#endif
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#ifndef LED7_ON
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#define LED7_ON /* defined empty */
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#define LED7_OFF /* defined empty */
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#define LED7_TOGGLE /* defined empty */
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#endif
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/** @} */
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/**
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* @brief Convenience LED control macros
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* @{
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*/
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#define LED_ON(x) LED ## x ##_ON
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#define LED_OFF(x) LED ## x ## _OFF
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#define LED_TOGGLE(x) LED ## x ##_TOGGLE
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* LED_H_ */
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/** @} */
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