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linux-next/drivers/leds/trigger/ledtrig-disk.c
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

48 lines
1.2 KiB
C

// 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);
DEFINE_LED_TRIGGER(ledtrig_ide);
void ledtrig_disk_activity(bool write)
{
unsigned long blink_delay = BLINK_DELAY;
led_trigger_blink_oneshot(ledtrig_disk,
&blink_delay, &blink_delay, 0);
led_trigger_blink_oneshot(ledtrig_ide,
&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);
led_trigger_register_simple("ide-disk", &ledtrig_ide);
return 0;
}
device_initcall(ledtrig_disk_init);