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/*
* (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 */
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};
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++) {
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) {
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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"
);