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
|
// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: © 2010 Sascha Hauer, Pengutronix
/* LED trigger command support for barebox */
#include <common.h>
#include <led.h>
#include <command.h>
#include <getopt.h>
#include <errno.h>
#define LED_COMMAND_SET_TRIGGER 1
#define LED_COMMAND_SHOW_INFO 2
#define LED_COMMAND_DISABLE_TRIGGER 3
static int do_trigger(int argc, char *argv[])
{
struct led *led = NULL;
int opt, ret = 0;
int cmd = LED_COMMAND_SHOW_INFO;
enum led_trigger trigger;
const char *led_name = NULL;
const char *trigger_name = NULL;
while((opt = getopt(argc, argv, "t:d:")) > 0) {
switch(opt) {
case 't':
trigger_name = optarg;
cmd = LED_COMMAND_SET_TRIGGER;
break;
case 'd':
led_name = optarg;
cmd = LED_COMMAND_DISABLE_TRIGGER;
}
}
if (optind < argc)
led = led_by_name_or_number(argv[optind]);
switch (cmd) {
case LED_COMMAND_SHOW_INFO:
led_triggers_show_info();
break;
case LED_COMMAND_DISABLE_TRIGGER:
led = led_by_name_or_number(led_name);
if (!led) {
printf("no such led: %s\n", led_name);
return 1;
}
led_trigger_disable(led);
break;
case LED_COMMAND_SET_TRIGGER:
if (argc - optind != 1)
return COMMAND_ERROR_USAGE;
led = led_by_name_or_number(argv[optind]);
if (!led) {
printf("no such led: %s\n", argv[optind]);
return 1;
}
trigger = trigger_by_name(trigger_name);
if (trigger == LED_TRIGGER_INVALID) {
printf("no such trigger: %s\n", trigger_name);
return 1;
}
ret = led_set_trigger(trigger, led);
break;
}
if (ret)
printf("trigger failed: %s\n", strerror(-ret));
return ret ? 1 : 0;
}
BAREBOX_CMD_HELP_START(trigger)
BAREBOX_CMD_HELP_TEXT("Control a LED trigger. Without options assigned triggers are shown.")
BAREBOX_CMD_HELP_TEXT("triggers are given with their name, LEDs are given with their name or number")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-t <trigger> <led>", "set a trigger")
BAREBOX_CMD_HELP_OPT ("-d <led>", "disable a trigger")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(trigger)
.cmd = do_trigger,
BAREBOX_CMD_DESC("handle LED triggers")
BAREBOX_CMD_OPTS("[-td] [LED]")
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
BAREBOX_CMD_HELP(cmd_trigger_help)
BAREBOX_CMD_END
|