cmd_led.c
3.26 KB
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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
/*
* (C) Copyright 2010
* Jason Kridner <jkridner@beagleboard.org>
*
* Based on cmd_led.c patch from:
* http://www.mail-archive.com/u-boot@lists.denx.de/msg06873.html
* (C) Copyright 2008
* Ulf Samuelsson <ulf.samuelsson@atmel.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <config.h>
#include <command.h>
#include <status_led.h>
struct led_tbl_s {
char *string; /* String for use in the command */
led_id_t mask; /* Mask used for calling __led_set() */
void (*off)(void); /* Optional function for turning LED off */
void (*on)(void); /* Optional function for turning LED on */
void (*toggle)(void);/* Optional function for toggling LED */
};
typedef struct led_tbl_s led_tbl_t;
static const led_tbl_t led_commands[] = {
#ifdef CONFIG_BOARD_SPECIFIC_LED
#ifdef STATUS_LED_BIT
{ "0", STATUS_LED_BIT, NULL, NULL, NULL },
#endif
#ifdef STATUS_LED_BIT1
{ "1", STATUS_LED_BIT1, NULL, NULL, NULL },
#endif
#ifdef STATUS_LED_BIT2
{ "2", STATUS_LED_BIT2, NULL, NULL, NULL },
#endif
#ifdef STATUS_LED_BIT3
{ "3", STATUS_LED_BIT3, NULL, NULL, NULL },
#endif
#endif
#ifdef STATUS_LED_GREEN
{ "green", STATUS_LED_GREEN, green_led_off, green_led_on, NULL },
#endif
#ifdef STATUS_LED_YELLOW
{ "yellow", STATUS_LED_YELLOW, yellow_led_off, yellow_led_on, NULL },
#endif
#ifdef STATUS_LED_RED
{ "red", STATUS_LED_RED, red_led_off, red_led_on, NULL },
#endif
#ifdef STATUS_LED_BLUE
{ "blue", STATUS_LED_BLUE, blue_led_off, blue_led_on, NULL },
#endif
{ NULL, 0, NULL, NULL, NULL }
};
enum led_cmd { LED_ON, LED_OFF, LED_TOGGLE };
enum led_cmd get_led_cmd(char *var)
{
if (strcmp(var, "off") == 0) {
return LED_OFF;
}
if (strcmp(var, "on") == 0) {
return LED_ON;
}
if (strcmp(var, "toggle") == 0)
return LED_TOGGLE;
return -1;
}
int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i, match = 0;
enum led_cmd cmd;
/* Validate arguments */
if ((argc != 3)) {
return CMD_RET_USAGE;
}
cmd = get_led_cmd(argv[2]);
if (cmd < 0) {
return CMD_RET_USAGE;
}
for (i = 0; led_commands[i].string; i++) {
if ((strcmp("all", argv[1]) == 0) ||
(strcmp(led_commands[i].string, argv[1]) == 0)) {
match = 1;
switch (cmd) {
case LED_ON:
if (led_commands[i].on)
led_commands[i].on();
else
__led_set(led_commands[i].mask,
STATUS_LED_ON);
break;
case LED_OFF:
if (led_commands[i].off)
led_commands[i].off();
else
__led_set(led_commands[i].mask,
STATUS_LED_OFF);
break;
case LED_TOGGLE:
if (led_commands[i].toggle)
led_commands[i].toggle();
else
__led_toggle(led_commands[i].mask);
}
/* Need to set only 1 led if led_name wasn't 'all' */
if (strcmp("all", argv[1]) != 0)
break;
}
}
/* If we ran out of matches, print Usage */
if (!match) {
return CMD_RET_USAGE;
}
return 0;
}
U_BOOT_CMD(
led, 3, 1, do_led,
"["
#ifdef CONFIG_BOARD_SPECIFIC_LED
#ifdef STATUS_LED_BIT
"0|"
#endif
#ifdef STATUS_LED_BIT1
"1|"
#endif
#ifdef STATUS_LED_BIT2
"2|"
#endif
#ifdef STATUS_LED_BIT3
"3|"
#endif
#endif
#ifdef STATUS_LED_GREEN
"green|"
#endif
#ifdef STATUS_LED_YELLOW
"yellow|"
#endif
#ifdef STATUS_LED_RED
"red|"
#endif
#ifdef STATUS_LED_BLUE
"blue|"
#endif
"all] [on|off|toggle]",
"[led_name] [on|off|toggle] sets or clears led(s)"
);