97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
/*
|
|
* LED command support for barebox
|
|
*
|
|
* (C) Copyright 2010 Sascha Hauer, Pengutronix
|
|
*
|
|
* 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 <led.h>
|
|
#include <command.h>
|
|
#include <getopt.h>
|
|
#include <errno.h>
|
|
|
|
static int do_led(int argc, char *argv[])
|
|
{
|
|
unsigned long value;
|
|
struct led *led;
|
|
int ret;
|
|
|
|
if (argc == 1) {
|
|
int i = 0;
|
|
|
|
led = led_by_number(i);
|
|
if (!led) {
|
|
printf("no registered LEDs\n");
|
|
return COMMAND_ERROR;
|
|
}
|
|
|
|
printf("registered LEDs:\n");
|
|
|
|
while ((led = led_by_number(i))) {
|
|
printf("%-2d: name: %-10s max_value: %d\n",
|
|
i, led->name ? led->name : "none",
|
|
led->max_value);
|
|
i++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (argc != 3)
|
|
return COMMAND_ERROR_USAGE;
|
|
|
|
led = led_by_name_or_number(argv[1]);
|
|
if (!led) {
|
|
printf("no such LED: %s\n", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
value = simple_strtoul(argv[optind + 1], NULL, 0);
|
|
|
|
ret = led_set(led, value);
|
|
if (ret < 0) {
|
|
perror("led");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @page led_command
|
|
|
|
The exact meaning of <value> is unspecified. It can be a color in case of rgb
|
|
LEDs or a brightness if this is controllable. In most cases only 1 for enabled
|
|
is allowed.
|
|
|
|
*/
|
|
|
|
BAREBOX_CMD_HELP_START(led)
|
|
BAREBOX_CMD_HELP_USAGE("led <led> <value>\n")
|
|
BAREBOX_CMD_HELP_SHORT("control the value of a LED. a value of 0 means disabled\n")
|
|
BAREBOX_CMD_HELP_SHORT("without arguments the available LEDs are listed\n")
|
|
BAREBOX_CMD_HELP_END
|
|
|
|
BAREBOX_CMD_START(led)
|
|
.cmd = do_led,
|
|
.usage = "led <led> <value>",
|
|
BAREBOX_CMD_HELP(cmd_led_help)
|
|
BAREBOX_CMD_END
|