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// SPDX-License-Identifier: GPL-2.0-only
/*
* LED Disk Activity Trigger
*
* Copyright 2006 Openedhand Ltd.
*
* Author: Richard Purdie <rpurdie@openedhand.com>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/leds.h>
#define BLINK_DELAY 30
DEFINE_LED_TRIGGER(ledtrig_disk);
DEFINE_LED_TRIGGER(ledtrig_disk_read);
DEFINE_LED_TRIGGER(ledtrig_disk_write);
void ledtrig_disk_activity(bool write)
{
unsigned long blink_delay = BLINK_DELAY;
led_trigger_blink_oneshot(ledtrig_disk,
&blink_delay, &blink_delay, 0);
if (write)
led_trigger_blink_oneshot(ledtrig_disk_write,
&blink_delay, &blink_delay, 0);
else
led_trigger_blink_oneshot(ledtrig_disk_read,
&blink_delay, &blink_delay, 0);
}
EXPORT_SYMBOL(ledtrig_disk_activity);
static int __init ledtrig_disk_init(void)
{
led_trigger_register_simple("disk-activity", &ledtrig_disk);
led_trigger_register_simple("disk-read", &ledtrig_disk_read);
led_trigger_register_simple("disk-write", &ledtrig_disk_write);
return 0;
}
device_initcall(ledtrig_disk_init);
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