/****************************************************************************
*
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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****************************************************************************/
/**
* @file px4fmu2_led.c
*
* PX4FMU LED backend.
*/
#include <nuttx/config.h>
#include <stdbool.h>
#include "stm32.h"
#include "px4fmu_internal.h"
#include <arch/board/board.h>
/*
* Ideally we'd be able to get these from up_internal.h,
* but since we want to be able to disable the NuttX use
* of leds for system indication at will and there is no
* separate switch, we need to build independent of the
* CONFIG_ARCH_LEDS configuration switch.
*/
__BEGIN_DECLS
extern void led_init();
extern void led_on(int led);
extern void led_off(int led);
__END_DECLS
__EXPORT void led_init()
{
/* Configure LED1 GPIO for output */
stm32_configgpio(GPIO_LED1);
}
__EXPORT void led_on(int led)
{
if (led == 1)
{
/* Pull down to switch on */
stm32_gpiowrite(GPIO_LED1, false);
}
}
__EXPORT void led_off(int led)
{
if (led == 1)
{
/* Pull up to switch off */
stm32_gpiowrite(GPIO_LED1, true);
}
}