summaryrefslogtreecommitdiff
path: root/common/cmd_led.c
blob: 183dc0b42f7663769f56e4e8995edad342cf9960 (plain)
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
/*
 * (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>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#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 */
};

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 },
#endif
#ifdef STATUS_LED_BIT1
	{ "1", STATUS_LED_BIT1, NULL, NULL },
#endif
#ifdef STATUS_LED_BIT2
	{ "2", STATUS_LED_BIT2, NULL, NULL },
#endif
#ifdef STATUS_LED_BIT3
	{ "3", STATUS_LED_BIT3, NULL, NULL },
#endif
#endif
#ifdef STATUS_LED_GREEN
	{ "green", STATUS_LED_GREEN, green_LED_off, green_LED_on },
#endif
#ifdef STATUS_LED_YELLOW
	{ "yellow", STATUS_LED_YELLOW, yellow_LED_off, yellow_LED_on },
#endif
#ifdef STATUS_LED_RED
	{ "red", STATUS_LED_RED, red_LED_off, red_LED_on },
#endif
#ifdef STATUS_LED_BLUE
	{ "blue", STATUS_LED_BLUE, blue_LED_off, blue_LED_on },
#endif
	{ NULL, 0, NULL, NULL }
};

int str_onoff (char *var)
{
	if (strcmp(var, "off") == 0) {
		return 0;
	}
	if (strcmp(var, "on") == 0) {
		return 1;
	}
	return -1;
}

int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	int state, i, match = 0;

	/* Validate arguments */
	if ((argc != 3)) {
		return cmd_usage(cmdtp);
	}

	state = str_onoff(argv[2]);
	if (state < 0) {
		return cmd_usage(cmdtp);
	}

	for (i = 0; led_commands[i].string; i++) {
		if ((strcmp("all", argv[1]) == 0) ||
		    (strcmp(led_commands[i].string, argv[1]) == 0)) {
		    	match = 1;
			if (led_commands[i].on) {
				if (state) {
					led_commands[i].on();
				} else {
					led_commands[i].off();
				}
			} else {
				__led_set(led_commands[i].mask, state);
			}
			/* 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_usage(cmdtp);
	}

	return 0;
}

U_BOOT_CMD(
	led, 3, 1, do_led,
	"led\t- ["
#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]\n",
	"led [led_name] [on|off] sets or clears led(s)\n"
);