54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-only
|
||
|
|
/*
|
||
|
|
* Camera Flash and Torch On/Off Trigger
|
||
|
|
*
|
||
|
|
* based on ledtrig-ide-disk.c
|
||
|
|
*
|
||
|
|
* Copyright 2013 Texas Instruments
|
||
|
|
*
|
||
|
|
* Author: Milo(Woogyom) Kim <milo.kim@ti.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/leds.h>
|
||
|
|
|
||
|
|
DEFINE_LED_TRIGGER(ledtrig_flash);
|
||
|
|
DEFINE_LED_TRIGGER(ledtrig_torch);
|
||
|
|
|
||
|
|
void ledtrig_flash_ctrl(bool on)
|
||
|
|
{
|
||
|
|
enum led_brightness brt = on ? LED_FULL : LED_OFF;
|
||
|
|
|
||
|
|
led_trigger_event(ledtrig_flash, brt);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(ledtrig_flash_ctrl);
|
||
|
|
|
||
|
|
void ledtrig_torch_ctrl(bool on)
|
||
|
|
{
|
||
|
|
enum led_brightness brt = on ? LED_FULL : LED_OFF;
|
||
|
|
|
||
|
|
led_trigger_event(ledtrig_torch, brt);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(ledtrig_torch_ctrl);
|
||
|
|
|
||
|
|
static int __init ledtrig_camera_init(void)
|
||
|
|
{
|
||
|
|
led_trigger_register_simple("flash", &ledtrig_flash);
|
||
|
|
led_trigger_register_simple("torch", &ledtrig_torch);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
module_init(ledtrig_camera_init);
|
||
|
|
|
||
|
|
static void __exit ledtrig_camera_exit(void)
|
||
|
|
{
|
||
|
|
led_trigger_unregister_simple(ledtrig_torch);
|
||
|
|
led_trigger_unregister_simple(ledtrig_flash);
|
||
|
|
}
|
||
|
|
module_exit(ledtrig_camera_exit);
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("LED Trigger for Camera Flash/Torch Control");
|
||
|
|
MODULE_AUTHOR("Milo Kim");
|
||
|
|
MODULE_LICENSE("GPL v2");
|