1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Camera Flash and Torch On/Off Trigger 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * based on ledtrig-ide-disk.c 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Copyright 2013 Texas Instruments 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * Author: Milo(Woogyom) Kim <milo.kim@ti.com> 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <linux/module.h> 13*4882a593Smuzhiyun #include <linux/kernel.h> 14*4882a593Smuzhiyun #include <linux/init.h> 15*4882a593Smuzhiyun #include <linux/leds.h> 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun DEFINE_LED_TRIGGER(ledtrig_flash); 18*4882a593Smuzhiyun DEFINE_LED_TRIGGER(ledtrig_torch); 19*4882a593Smuzhiyun ledtrig_flash_ctrl(bool on)20*4882a593Smuzhiyunvoid ledtrig_flash_ctrl(bool on) 21*4882a593Smuzhiyun { 22*4882a593Smuzhiyun enum led_brightness brt = on ? LED_FULL : LED_OFF; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun led_trigger_event(ledtrig_flash, brt); 25*4882a593Smuzhiyun } 26*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(ledtrig_flash_ctrl); 27*4882a593Smuzhiyun ledtrig_torch_ctrl(bool on)28*4882a593Smuzhiyunvoid ledtrig_torch_ctrl(bool on) 29*4882a593Smuzhiyun { 30*4882a593Smuzhiyun enum led_brightness brt = on ? LED_FULL : LED_OFF; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun led_trigger_event(ledtrig_torch, brt); 33*4882a593Smuzhiyun } 34*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(ledtrig_torch_ctrl); 35*4882a593Smuzhiyun ledtrig_camera_init(void)36*4882a593Smuzhiyunstatic int __init ledtrig_camera_init(void) 37*4882a593Smuzhiyun { 38*4882a593Smuzhiyun led_trigger_register_simple("flash", &ledtrig_flash); 39*4882a593Smuzhiyun led_trigger_register_simple("torch", &ledtrig_torch); 40*4882a593Smuzhiyun return 0; 41*4882a593Smuzhiyun } 42*4882a593Smuzhiyun module_init(ledtrig_camera_init); 43*4882a593Smuzhiyun ledtrig_camera_exit(void)44*4882a593Smuzhiyunstatic void __exit ledtrig_camera_exit(void) 45*4882a593Smuzhiyun { 46*4882a593Smuzhiyun led_trigger_unregister_simple(ledtrig_torch); 47*4882a593Smuzhiyun led_trigger_unregister_simple(ledtrig_flash); 48*4882a593Smuzhiyun } 49*4882a593Smuzhiyun module_exit(ledtrig_camera_exit); 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun MODULE_DESCRIPTION("LED Trigger for Camera Flash/Torch Control"); 52*4882a593Smuzhiyun MODULE_AUTHOR("Milo Kim"); 53*4882a593Smuzhiyun MODULE_LICENSE("GPL v2"); 54