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 | 6 | |
05950094 AL |
7 | struct acpi_video_brightness_flags { |
8 | u8 _BCL_no_ac_battery_levels:1; /* no AC/Battery levels in _BCL */ | |
9 | u8 _BCL_reversed:1; /* _BCL package is in a reversed order */ | |
10 | u8 _BQC_use_index:1; /* _BQC returns an index value */ | |
11 | }; | |
12 | ||
13 | struct acpi_video_device_brightness { | |
14 | int curr; | |
15 | int count; | |
16 | int *levels; | |
17 | struct acpi_video_brightness_flags flags; | |
18 | }; | |
19 | ||
b72512ed CW |
20 | struct acpi_device; |
21 | ||
f5a3d0c4 MG |
22 | #define ACPI_VIDEO_CLASS "video" |
23 | ||
e92a7162 MG |
24 | #define ACPI_VIDEO_DISPLAY_CRT 1 |
25 | #define ACPI_VIDEO_DISPLAY_TV 2 | |
26 | #define ACPI_VIDEO_DISPLAY_DVI 3 | |
27 | #define ACPI_VIDEO_DISPLAY_LCD 4 | |
28 | ||
29 | #define ACPI_VIDEO_DISPLAY_LEGACY_MONITOR 0x0100 | |
30 | #define ACPI_VIDEO_DISPLAY_LEGACY_PANEL 0x0110 | |
31 | #define ACPI_VIDEO_DISPLAY_LEGACY_TV 0x0200 | |
32 | ||
87521e16 HG |
33 | enum acpi_backlight_type { |
34 | acpi_backlight_undef = -1, | |
35 | acpi_backlight_none = 0, | |
36 | acpi_backlight_video, | |
37 | acpi_backlight_vendor, | |
38 | acpi_backlight_native, | |
39 | }; | |
40 | ||
bcb2b0b2 | 41 | #if IS_ENABLED(CONFIG_ACPI_VIDEO) |
8e5c2b77 | 42 | extern int acpi_video_register(void); |
86e437f0 | 43 | extern void acpi_video_unregister(void); |
e92a7162 MG |
44 | extern int acpi_video_get_edid(struct acpi_device *device, int type, |
45 | int device_id, void **edid); | |
87521e16 HG |
46 | extern enum acpi_backlight_type acpi_video_get_backlight_type(void); |
47 | extern void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type); | |
382d1163 HG |
48 | /* |
49 | * Note: The value returned by acpi_video_handles_brightness_key_presses() | |
50 | * may change over time and should not be cached. | |
51 | */ | |
90b066b1 | 52 | extern bool acpi_video_handles_brightness_key_presses(void); |
05950094 | 53 | extern int acpi_video_get_levels(struct acpi_device *device, |
9f9cd7ee AL |
54 | struct acpi_video_device_brightness **dev_br, |
55 | int *pmax_level); | |
74a365b3 MG |
56 | #else |
57 | static inline int acpi_video_register(void) { return 0; } | |
86e437f0 | 58 | static inline void acpi_video_unregister(void) { return; } |
e92a7162 MG |
59 | static inline int acpi_video_get_edid(struct acpi_device *device, int type, |
60 | int device_id, void **edid) | |
61 | { | |
62 | return -ENODEV; | |
63 | } | |
87521e16 HG |
64 | static inline enum acpi_backlight_type acpi_video_get_backlight_type(void) |
65 | { | |
66 | return acpi_backlight_vendor; | |
67 | } | |
eddda195 | 68 | static inline void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type) |
87521e16 HG |
69 | { |
70 | } | |
90b066b1 HG |
71 | static inline bool acpi_video_handles_brightness_key_presses(void) |
72 | { | |
73 | return false; | |
74 | } | |
e4f35c13 | 75 | static inline int acpi_video_get_levels(struct acpi_device *device, |
9f9cd7ee AL |
76 | struct acpi_video_device_brightness **dev_br, |
77 | int *pmax_level) | |
05950094 AL |
78 | { |
79 | return -ENODEV; | |
80 | } | |
74a365b3 MG |
81 | #endif |
82 | ||
83 | #endif |