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120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/****************************************************************************
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*
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* Copyright (c) 2012-2016 PX4 Development Team. All rights reserved.
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* Author: David Sidrane <david_s5@nscdg.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file led.c
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*
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* AEROFC_V1 LED backend.
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*/
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#include <px4_platform_common/px4_config.h>
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#include <stdbool.h>
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#include "stm32.h"
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#include "board_config.h"
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#include <arch/board/board.h>
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/*
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* Ideally we'd be able to get these from arm_internal.h,
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* but since we want to be able to disable the NuttX use
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* of leds for system indication at will and there is no
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* separate switch, we need to build independent of the
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* CONFIG_ARCH_LEDS configuration switch.
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*/
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__BEGIN_DECLS
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extern void led_init(void);
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extern void led_on(int led);
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extern void led_off(int led);
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extern void led_toggle(int led);
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__END_DECLS
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__EXPORT void led_init(void)
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{
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/* Configure LED0-3 GPIOs for output */
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stm32_configgpio(GPIO_LED0);
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stm32_configgpio(GPIO_LED1);
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stm32_configgpio(GPIO_LED2);
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stm32_configgpio(GPIO_LED3);
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}
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static uint32_t _led_param_get(int led)
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{
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switch (led) {
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case 0:
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return GPIO_LED0; // LED_BLUE
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case 1:
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return GPIO_LED1; // LED_RED
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case 2:
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return GPIO_LED2; // LED SAFETY
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case 3:
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return GPIO_LED3; // LED GREEN
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}
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return 0;
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}
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__EXPORT void led_on(int led)
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{
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const uint32_t param = _led_param_get(led);
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if (param) {
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stm32_gpiowrite(param, false);
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}
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}
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__EXPORT void led_off(int led)
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{
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const uint32_t param = _led_param_get(led);
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if (param) {
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stm32_gpiowrite(param, true);
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}
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}
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__EXPORT void led_toggle(int led)
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{
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const uint32_t param = _led_param_get(led);
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if (param) {
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stm32_gpiowrite(param, !stm32_gpioread(param));
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}
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}
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