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/***************************************************************************
Copyright 2014 Intel Corporation. All Rights Reserved.
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, sub license, 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 NON-INFRINGEMENT.
IN NO EVENT SHALL INTEL, AND/OR ITS SUPPLIERS 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.
**************************************************************************/
#ifndef BACKLIGHT_H
#define BACKLIGHT_H
enum backlight_type {
BL_NONE = -1,
BL_PLATFORM,
BL_FIRMWARE,
BL_RAW,
BL_NAMED,
};
struct backlight {
char *iface;
enum backlight_type type;
int max;
int has_power;
int pid, fd;
};
int backlight_exists(const char *iface);
void backlight_init(struct backlight *backlight);
int backlight_open(struct backlight *backlight, char *iface);
int backlight_set(struct backlight *backlight, int level);
int backlight_get(struct backlight *backlight);
int backlight_on(struct backlight *b);
int backlight_off(struct backlight *b);
void backlight_disable(struct backlight *backlight);
void backlight_close(struct backlight *backlight);
struct pci_device;
char *backlight_find_for_device(struct pci_device *pci);
#endif /* BACKLIGHT_H */
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