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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: © 2010 Sascha Hauer, Pengutronix
/* LED command support for barebox */
#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;
int opt;
int flash = 0, blink = 0;
int blink_on_ms = 500;
int blink_off_ms = 500;
while ((opt = getopt(argc, argv, "fb")) > 0) {
switch(opt) {
case 'f':
flash = 1;
break;
case 'b':
blink = 1;
break;
}
}
if (flash || blink) {
int args = argc - optind;
if (!args || (flash && blink))
return COMMAND_ERROR_USAGE;
led = led_by_name_or_number(argv[optind]);
if (!led) {
printf("no such LED: %s\n", argv[optind]);
return 1;
}
if (args > 1)
blink_on_ms = simple_strtoul(argv[optind + 1], NULL, 0);
if (args > 2)
blink_off_ms = simple_strtoul(argv[optind + 2], NULL, 0);
if (flash)
return led_flash(led, blink_on_ms);
if (blink)
return led_blink(led, blink_on_ms, blink_off_ms);
}
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) {
printf("led: %s\n", strerror(-ret));
return COMMAND_ERROR;
}
return 0;
}
BAREBOX_CMD_HELP_START(led)
BAREBOX_CMD_HELP_TEXT("Control the value of a LED. The exact meaning of VALUE is unspecified,")
BAREBOX_CMD_HELP_TEXT("it can be a brightness, or a color. Most often a value of '1' means on")
BAREBOX_CMD_HELP_TEXT("and '0' means off. Basic usage is 'led <led> <value>'. LEDs can be given")
BAREBOX_CMD_HELP_TEXT("by name or number.")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Without arguments the available LEDs are listed.")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-b <led> [duration-on-ms] [duration-off-ms]", "blink a LED")
BAREBOX_CMD_HELP_OPT ("-f <led> [duration-ms]", "flash a LED")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(led)
.cmd = do_led,
BAREBOX_CMD_DESC("control LEDs")
BAREBOX_CMD_OPTS("LED VALUE")
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
BAREBOX_CMD_HELP(cmd_led_help)
BAREBOX_CMD_END
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