Commit | Line | Data |
---|---|---|
74a365b3 MG |
1 | #ifndef __ACPI_VIDEO_H |
2 | #define __ACPI_VIDEO_H | |
3 | ||
b72512ed | 4 | #include <linux/errno.h> /* for ENODEV */ |
90b066b1 | 5 | #include <linux/types.h> /* for bool */ |
b72512ed CW |
6 | |
7 | struct acpi_device; | |
8 | ||
f5a3d0c4 MG |
9 | #define ACPI_VIDEO_CLASS "video" |
10 | ||
e92a7162 MG |
11 | #define ACPI_VIDEO_DISPLAY_CRT 1 |
12 | #define ACPI_VIDEO_DISPLAY_TV 2 | |
13 | #define ACPI_VIDEO_DISPLAY_DVI 3 | |
14 | #define ACPI_VIDEO_DISPLAY_LCD 4 | |
15 | ||
16 | #define ACPI_VIDEO_DISPLAY_LEGACY_MONITOR 0x0100 | |
17 | #define ACPI_VIDEO_DISPLAY_LEGACY_PANEL 0x0110 | |
18 | #define ACPI_VIDEO_DISPLAY_LEGACY_TV 0x0200 | |
19 | ||
87521e16 HG |
20 | enum acpi_backlight_type { |
21 | acpi_backlight_undef = -1, | |
22 | acpi_backlight_none = 0, | |
23 | acpi_backlight_video, | |
24 | acpi_backlight_vendor, | |
25 | acpi_backlight_native, | |
26 | }; | |
27 | ||
bcb2b0b2 | 28 | #if IS_ENABLED(CONFIG_ACPI_VIDEO) |
8e5c2b77 | 29 | extern int acpi_video_register(void); |
86e437f0 | 30 | extern void acpi_video_unregister(void); |
e92a7162 MG |
31 | extern int acpi_video_get_edid(struct acpi_device *device, int type, |
32 | int device_id, void **edid); | |
87521e16 HG |
33 | extern enum acpi_backlight_type acpi_video_get_backlight_type(void); |
34 | extern void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type); | |
382d1163 HG |
35 | /* |
36 | * Note: The value returned by acpi_video_handles_brightness_key_presses() | |
37 | * may change over time and should not be cached. | |
38 | */ | |
90b066b1 | 39 | extern bool acpi_video_handles_brightness_key_presses(void); |
74a365b3 MG |
40 | #else |
41 | static inline int acpi_video_register(void) { return 0; } | |
86e437f0 | 42 | static inline void acpi_video_unregister(void) { return; } |
e92a7162 MG |
43 | static inline int acpi_video_get_edid(struct acpi_device *device, int type, |
44 | int device_id, void **edid) | |
45 | { | |
46 | return -ENODEV; | |
47 | } | |
87521e16 HG |
48 | static inline enum acpi_backlight_type acpi_video_get_backlight_type(void) |
49 | { | |
50 | return acpi_backlight_vendor; | |
51 | } | |
eddda195 | 52 | static inline void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type) |
87521e16 HG |
53 | { |
54 | } | |
90b066b1 HG |
55 | static inline bool acpi_video_handles_brightness_key_presses(void) |
56 | { | |
57 | return false; | |
58 | } | |
74a365b3 MG |
59 | #endif |
60 | ||
61 | #endif |