mirror of
https://gitlab.freedesktop.org/wayland/weston
synced 2024-09-06 18:05:39 +00:00
![Pekka Paalanen](/assets/img/avatar_default.png)
This clarifies what is supposed to be the libweston code. v2: screen-share.c is already in compositor/ instead. Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk> Reviewed-by: Yong Bakos <ybakos@humanoriented.com> Acked-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net> Tested-by: Quentin Glidic <sardemff7+git@sardemff7.net> Tested-by: Benoit Gschwind <gschwind@gnu-log.net> Acked-by: Benoit Gschwind <gschwind@gnu-log.net> [Pekka: rebased]
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*
|
|
* libbacklight - userspace interface to Linux backlight control
|
|
*
|
|
* Copyright © 2012 Intel Corporation
|
|
* Copyright 2010 Red Hat <mjg@redhat.com>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Authors:
|
|
* Matthew Garrett <mjg@redhat.com>
|
|
* Tiago Vignatti <vignatti@freedesktop.org>
|
|
*/
|
|
#ifndef LIBBACKLIGHT_H
|
|
#define LIBBACKLIGHT_H
|
|
#include <libudev.h>
|
|
#include <stdint.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
enum backlight_type {
|
|
BACKLIGHT_RAW,
|
|
BACKLIGHT_PLATFORM,
|
|
BACKLIGHT_FIRMWARE
|
|
};
|
|
|
|
struct backlight {
|
|
char *path;
|
|
int max_brightness;
|
|
int brightness;
|
|
enum backlight_type type;
|
|
};
|
|
|
|
/*
|
|
* Find and set up a backlight for a valid udev connector device, i.e. one
|
|
* matching drm subsytem and with status of connected.
|
|
*/
|
|
struct backlight *backlight_init(struct udev_device *drm_device,
|
|
uint32_t connector_type);
|
|
|
|
/* Free backlight resources */
|
|
void backlight_destroy(struct backlight *backlight);
|
|
|
|
/* Provide the maximum backlight value */
|
|
long backlight_get_max_brightness(struct backlight *backlight);
|
|
|
|
/* Provide the cached backlight value */
|
|
long backlight_get_brightness(struct backlight *backlight);
|
|
|
|
/* Provide the hardware backlight value */
|
|
long backlight_get_actual_brightness(struct backlight *backlight);
|
|
|
|
/* Set the backlight to a value between 0 and max */
|
|
long backlight_set_brightness(struct backlight *backlight, long brightness);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* LIBBACKLIGHT_H */
|