1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2020 Emmanuel Vadot <manu@FreeBSD.org>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef __BACKLIGHT_H__
29#define __BACKLIGHT_H__
30
31#include <sys/types.h>
32
33#define BACKLIGHTMAXLEVELS 100
34
35struct backlight_props {
36 uint32_t brightness;
37 uint32_t nlevels;
38 uint32_t levels[BACKLIGHTMAXLEVELS];
39};
40
41enum backlight_info_type {
42 BACKLIGHT_TYPE_PANEL = 0,
43 BACKLIGHT_TYPE_KEYBOARD
44};
45
46#define BACKLIGHTMAXNAMELENGTH 64
47
48struct backlight_info {
49 char name[BACKLIGHTMAXNAMELENGTH];
50 enum backlight_info_type type;
51};
52
53/*
54 * ioctls
55 */
56
57#define BACKLIGHTGETSTATUS _IOWR('G', 0, struct backlight_props)
58#define BACKLIGHTUPDATESTATUS _IOWR('G', 1, struct backlight_props)
59#define BACKLIGHTGETINFO _IOWR('G', 2, struct backlight_info)
60
61#endif /* __BACKLIGHT_H__ */