/* * (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 (*on)(void); /* Optional fucntion for turning LED on */ void (*off)(void); /* Optional fucntion 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; /* 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)) { if (led_commands[i].on) { if (state) { led_commands[i].on(); } else { led_commands[i].off(); } } else { __led_set(led_commands[i].mask, state); } break; } } /* If we ran out of matches, print Usage */ if (!led_commands[i].string && !(strcmp("all", argv[1]) == 0)) { 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" );