cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

ledtrig-camera.c (1226B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Camera Flash and Torch On/Off Trigger
      4 *
      5 * based on ledtrig-ide-disk.c
      6 *
      7 * Copyright 2013 Texas Instruments
      8 *
      9 * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
     10 */
     11
     12#include <linux/module.h>
     13#include <linux/kernel.h>
     14#include <linux/init.h>
     15#include <linux/leds.h>
     16
     17DEFINE_LED_TRIGGER(ledtrig_flash);
     18DEFINE_LED_TRIGGER(ledtrig_torch);
     19
     20void ledtrig_flash_ctrl(bool on)
     21{
     22	enum led_brightness brt = on ? LED_FULL : LED_OFF;
     23
     24	led_trigger_event(ledtrig_flash, brt);
     25}
     26EXPORT_SYMBOL_GPL(ledtrig_flash_ctrl);
     27
     28void ledtrig_torch_ctrl(bool on)
     29{
     30	enum led_brightness brt = on ? LED_FULL : LED_OFF;
     31
     32	led_trigger_event(ledtrig_torch, brt);
     33}
     34EXPORT_SYMBOL_GPL(ledtrig_torch_ctrl);
     35
     36static int __init ledtrig_camera_init(void)
     37{
     38	led_trigger_register_simple("flash", &ledtrig_flash);
     39	led_trigger_register_simple("torch", &ledtrig_torch);
     40	return 0;
     41}
     42module_init(ledtrig_camera_init);
     43
     44static void __exit ledtrig_camera_exit(void)
     45{
     46	led_trigger_unregister_simple(ledtrig_torch);
     47	led_trigger_unregister_simple(ledtrig_flash);
     48}
     49module_exit(ledtrig_camera_exit);
     50
     51MODULE_DESCRIPTION("LED Trigger for Camera Flash/Torch Control");
     52MODULE_AUTHOR("Milo Kim");
     53MODULE_LICENSE("GPL v2");