| Kim, Milo | 48a1d03 | 2013-03-14 04:29:24 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Camera Flash and Torch On/Off Trigger |
| 3 | * |
| 4 | * based on ledtrig-ide-disk.c |
| 5 | * |
| 6 | * Copyright 2013 Texas Instruments |
| 7 | * |
| 8 | * Author: Milo(Woogyom) Kim <milo.kim@ti.com> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
| 13 | * |
| 14 | */ |
| 15 | |
| 16 | #include <linux/module.h> |
| 17 | #include <linux/kernel.h> |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/leds.h> |
| 20 | |
| 21 | DEFINE_LED_TRIGGER(ledtrig_flash); |
| 22 | DEFINE_LED_TRIGGER(ledtrig_torch); |
| 23 | |
| 24 | void ledtrig_flash_ctrl(bool on) |
| 25 | { |
| 26 | enum led_brightness brt = on ? LED_FULL : LED_OFF; |
| 27 | |
| 28 | led_trigger_event(ledtrig_flash, brt); |
| 29 | } |
| 30 | EXPORT_SYMBOL_GPL(ledtrig_flash_ctrl); |
| 31 | |
| 32 | void ledtrig_torch_ctrl(bool on) |
| 33 | { |
| 34 | enum led_brightness brt = on ? LED_FULL : LED_OFF; |
| 35 | |
| 36 | led_trigger_event(ledtrig_torch, brt); |
| 37 | } |
| 38 | EXPORT_SYMBOL_GPL(ledtrig_torch_ctrl); |
| 39 | |
| 40 | static int __init ledtrig_camera_init(void) |
| 41 | { |
| 42 | led_trigger_register_simple("flash", &ledtrig_flash); |
| 43 | led_trigger_register_simple("torch", &ledtrig_torch); |
| 44 | return 0; |
| 45 | } |
| 46 | module_init(ledtrig_camera_init); |
| 47 | |
| 48 | static void __exit ledtrig_camera_exit(void) |
| 49 | { |
| 50 | led_trigger_unregister_simple(ledtrig_torch); |
| 51 | led_trigger_unregister_simple(ledtrig_flash); |
| 52 | } |
| 53 | module_exit(ledtrig_camera_exit); |
| 54 | |
| 55 | MODULE_DESCRIPTION("LED Trigger for Camera Flash/Torch Control"); |
| 56 | MODULE_AUTHOR("Milo Kim"); |
| 57 | MODULE_LICENSE("GPL"); |