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/*
* LED trigger 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.
*
*/
#include <common.h>
#include <led.h>
#include <command.h>
#include <getopt.h>
#include <errno.h>
#define LED_COMMAND_SET_TRIGGER 1
#define LED_COMMAND_SHOW_INFO 2
#define LED_COMMAND_DISABLE_TRIGGER 3
static char *trigger_names[] = {
[LED_TRIGGER_PANIC] = "panic",
[LED_TRIGGER_HEARTBEAT] = "heartbeat",
[LED_TRIGGER_NET_RX] = "net rx",
[LED_TRIGGER_NET_TX] = "net tx",
[LED_TRIGGER_NET_TXRX] = "net",
[LED_TRIGGER_DEFAULT_ON] = "default on",
};
static int do_trigger(int argc, char *argv[])
{
struct led *led;
int i, opt, ret = 0;
int cmd = LED_COMMAND_SHOW_INFO;
unsigned long trigger = 0;
while((opt = getopt(argc, argv, "t:d:")) > 0) {
switch(opt) {
case 't':
trigger = simple_strtoul(optarg, NULL, 0);
cmd = LED_COMMAND_SET_TRIGGER;
break;
case 'd':
trigger = simple_strtoul(optarg, NULL, 0);
cmd = LED_COMMAND_DISABLE_TRIGGER;
}
}
switch (cmd) {
case LED_COMMAND_SHOW_INFO:
for (i = 0; i < LED_TRIGGER_MAX; i++) {
int led = led_get_trigger(i);
printf("%d: %s", i, trigger_names[i]);
if (led >= 0)
printf(" (led %d)", led);
printf("\n");
}
break;
case LED_COMMAND_DISABLE_TRIGGER:
ret = led_set_trigger(trigger, NULL);
break;
case LED_COMMAND_SET_TRIGGER:
if (argc - optind != 1)
return COMMAND_ERROR_USAGE;
led = led_by_name_or_number(argv[optind]);
if (!led) {
printf("no such led: %s\n", argv[optind]);
return 1;
}
ret = led_set_trigger(trigger, led);
break;
}
if (ret)
printf("trigger failed: %s\n", strerror(-ret));
return ret ? 1 : 0;
}
BAREBOX_CMD_HELP_START(trigger)
BAREBOX_CMD_HELP_TEXT("Control a LED trigger. Without options assigned triggers are shown.")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-t", "set a trigger (needs LED argument)")
BAREBOX_CMD_HELP_OPT ("-d", "disable a trigger")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(trigger)
.cmd = do_trigger,
BAREBOX_CMD_DESC("handle LED triggers")
BAREBOX_CMD_OPTS("[-td] TRIGGER [LED]")
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
BAREBOX_CMD_HELP(cmd_trigger_help)
BAREBOX_CMD_END
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