154 lines
3.4 KiB
C
154 lines
3.4 KiB
C
/*
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* (C) Copyright 2010
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* Jason Kridner <jkridner@beagleboard.org>
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*
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* Based on cmd_led.c patch from:
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* http://www.mail-archive.com/u-boot@lists.denx.de/msg06873.html
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* (C) Copyright 2008
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* Ulf Samuelsson <ulf.samuelsson@atmel.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <config.h>
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#include <command.h>
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#include <status_led.h>
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struct led_tbl_s {
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char *string; /* String for use in the command */
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led_id_t mask; /* Mask used for calling __led_set() */
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void (*on)(void); /* Optional fucntion for turning LED on */
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void (*off)(void); /* Optional fucntion for turning LED on */
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};
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typedef struct led_tbl_s led_tbl_t;
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static const led_tbl_t led_commands[] = {
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#ifdef CONFIG_BOARD_SPECIFIC_LED
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#ifdef STATUS_LED_BIT
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{ "0", STATUS_LED_BIT, NULL, NULL },
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#endif
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#ifdef STATUS_LED_BIT1
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{ "1", STATUS_LED_BIT1, NULL, NULL },
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#endif
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#ifdef STATUS_LED_BIT2
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{ "2", STATUS_LED_BIT2, NULL, NULL },
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#endif
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#ifdef STATUS_LED_BIT3
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{ "3", STATUS_LED_BIT3, NULL, NULL },
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#endif
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#endif
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#ifdef STATUS_LED_GREEN
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{ "green", STATUS_LED_GREEN, green_LED_off, green_LED_on },
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#endif
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#ifdef STATUS_LED_YELLOW
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{ "yellow", STATUS_LED_YELLOW, yellow_LED_off, yellow_LED_on },
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#endif
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#ifdef STATUS_LED_RED
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{ "red", STATUS_LED_RED, red_LED_off, red_LED_on },
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#endif
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#ifdef STATUS_LED_BLUE
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{ "blue", STATUS_LED_BLUE, blue_LED_off, blue_LED_on },
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#endif
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{ NULL, 0, NULL, NULL }
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};
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int str_onoff (char *var)
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{
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if (strcmp(var, "off") == 0) {
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return 0;
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}
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if (strcmp(var, "on") == 0) {
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return 1;
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}
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return -1;
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}
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int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int state, i;
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/* Validate arguments */
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if ((argc != 3)) {
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return cmd_usage(cmdtp);
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}
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state = str_onoff(argv[2]);
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if (state < 0) {
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return cmd_usage(cmdtp);
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}
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for (i = 0; led_commands[i].string; i++) {
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if ((strcmp("all", argv[1]) == 0) ||
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(strcmp(led_commands[i].string, argv[1]) == 0)) {
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if (led_commands[i].on) {
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if (state) {
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led_commands[i].on();
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} else {
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led_commands[i].off();
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}
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} else {
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__led_set(led_commands[i].mask, state);
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}
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break;
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}
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}
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/* If we ran out of matches, print Usage */
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if (!led_commands[i].string && !(strcmp("all", argv[1]) == 0)) {
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return cmd_usage(cmdtp);
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}
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return 0;
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}
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U_BOOT_CMD(
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led, 3, 1, do_led,
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"led\t- ["
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#ifdef CONFIG_BOARD_SPECIFIC_LED
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#ifdef STATUS_LED_BIT
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"0|"
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#endif
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#ifdef STATUS_LED_BIT1
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"1|"
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#endif
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#ifdef STATUS_LED_BIT2
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"2|"
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#endif
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#ifdef STATUS_LED_BIT3
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"3|"
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#endif
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#endif
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#ifdef STATUS_LED_GREEN
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"green|"
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#endif
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#ifdef STATUS_LED_YELLOW
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"yellow|"
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#endif
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#ifdef STATUS_LED_RED
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"red|"
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#endif
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#ifdef STATUS_LED_BLUE
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"blue|"
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#endif
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"all] [on|off]\n",
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"led [led_name] [on|off] sets or clears led(s)\n"
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);
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