LXR linux/drivers/leds/trigger/ledtrig-mtd.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * LED MTD trigger
   4 *
   5 * Copyright 2016 Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
   6 *
   7 * Based on LED IDE-Disk Activity Trigger
   8 *
   9 * Copyright 2006 Openedhand Ltd.
  10 *
  11 * Author: Richard Purdie <rpurdie@openedhand.com>
  12 */
  13
  14#include <linux/kernel.h>
  15#include <linux/init.h>
  16#include <linux/leds.h>
  17
  18#define BLINK_DELAY 30
  19
  20DEFINE_LED_TRIGGER(ledtrig_mtd);
  21DEFINE_LED_TRIGGER(ledtrig_nand);
  22
  23void ledtrig_mtd_activity(void)
  24{
  25        unsigned long blink_delay = BLINK_DELAY;
  26
  27        led_trigger_blink_oneshot(ledtrig_mtd,
  28                                  &blink_delay, &blink_delay, 0);
  29        led_trigger_blink_oneshot(ledtrig_nand,
  30                                  &blink_delay, &blink_delay, 0);
  31}
  32EXPORT_SYMBOL(ledtrig_mtd_activity);
  33
  34static int __init ledtrig_mtd_init(void)
  35{
  36        led_trigger_register_simple("mtd", &ledtrig_mtd);
  37        led_trigger_register_simple("nand-disk", &ledtrig_nand);
  38
  39        return 0;
  40}
  41device_initcall(ledtrig_mtd_init);
  42