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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/*
* (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_LED_STATUS_BOARD_SPECIFIC
#ifdef CONFIG_LED_STATUS0
{ "0", CONFIG_LED_STATUS_BIT, NULL, NULL, NULL },
#endif
#ifdef CONFIG_LED_STATUS1
{ "1", CONFIG_LED_STATUS_BIT1, NULL, NULL, NULL },
#endif
#ifdef CONFIG_LED_STATUS2
{ "2", CONFIG_LED_STATUS_BIT2, NULL, NULL, NULL },
#endif
#ifdef CONFIG_LED_STATUS3
{ "3", CONFIG_LED_STATUS_BIT3, NULL, NULL, NULL },
#endif
#ifdef CONFIG_LED_STATUS4
{ "4", CONFIG_LED_STATUS_BIT4, NULL, NULL, NULL },
#endif
#ifdef CONFIG_LED_STATUS5
{ "5", CONFIG_LED_STATUS_BIT5, NULL, NULL, NULL },
#endif
#endif
#ifdef CONFIG_LED_STATUS_GREEN
{ "green", CONFIG_LED_STATUS_GREEN, green_led_off, green_led_on, NULL },
#endif
#ifdef CONFIG_LED_STATUS_YELLOW
{ "yellow", CONFIG_LED_STATUS_YELLOW, yellow_led_off, yellow_led_on,
NULL },
#endif
#ifdef CONFIG_LED_STATUS_RED
{ "red", CONFIG_LED_STATUS_RED, red_led_off, red_led_on, NULL },
#endif
#ifdef CONFIG_LED_STATUS_BLUE
{ "blue", CONFIG_LED_STATUS_BLUE, blue_led_off, blue_led_on, NULL },
#endif
{ NULL, 0, NULL, NULL, NULL }
};
enum led_cmd { LED_ON, LED_OFF, LED_TOGGLE, LED_BLINK };
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;
if (strcmp(var, "blink") == 0)
return LED_BLINK;
return -1;
}
/*
* LED drivers providing a blinking LED functionality, like the
* PCA9551, can override this empty weak function
*/
void __weak __led_blink(led_id_t mask, int freq)
{
}
int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i, match = 0;
enum led_cmd cmd;
int freq;
/* Validate arguments */
if ((argc < 3) || (argc > 4))
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,
CONFIG_LED_STATUS_ON);
break;
case LED_OFF:
if (led_commands[i].off)
led_commands[i].off();
else
__led_set(led_commands[i].mask,
CONFIG_LED_STATUS_OFF);
break;
case LED_TOGGLE:
if (led_commands[i].toggle)
led_commands[i].toggle();
else
__led_toggle(led_commands[i].mask);
break;
case LED_BLINK:
if (argc != 4)
return CMD_RET_USAGE;
freq = simple_strtoul(argv[3], NULL, 10);
__led_blink(led_commands[i].mask, freq);
}
/* 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, 4, 1, do_led,
"["
#ifdef CONFIG_LED_STATUS_BOARD_SPECIFIC
#ifdef CONFIG_LED_STATUS0
"0|"
#endif
#ifdef CONFIG_LED_STATUS1
"1|"
#endif
#ifdef CONFIG_LED_STATUS2
"2|"
#endif
#ifdef CONFIG_LED_STATUS3
"3|"
#endif
#ifdef CONFIG_LED_STATUS4
"4|"
#endif
#ifdef CONFIG_LED_STATUS5
"5|"
#endif
#endif
#ifdef CONFIG_LED_STATUS_GREEN
"green|"
#endif
#ifdef CONFIG_LED_STATUS_YELLOW
"yellow|"
#endif
#ifdef CONFIG_LED_STATUS_RED
"red|"
#endif
#ifdef CONFIG_LED_STATUS_BLUE
"blue|"
#endif
"all] [on|off|toggle|blink] [blink-freq in ms]",
"[led_name] [on|off|toggle|blink] sets or clears led(s)"
);
|
