1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/****************************************************************************
*
* Copyright (C) 2012 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
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file px4fmu_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 LED1-2 GPIOs for output */
stm32_configgpio(GPIO_LED1);
stm32_configgpio(GPIO_LED2);
}
__EXPORT void led_on(int led)
{
if (led == 0)
{
/* Pull down to switch on */
stm32_gpiowrite(GPIO_LED1, false);
}
if (led == 1)
{
/* Pull down to switch on */
stm32_gpiowrite(GPIO_LED2, false);
}
}
__EXPORT void led_off(int led)
{
if (led == 0)
{
/* Pull up to switch off */
stm32_gpiowrite(GPIO_LED1, true);
}
if (led == 1)
{
/* Pull up to switch off */
stm32_gpiowrite(GPIO_LED2, true);
}
}
|
