Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
74a365b3 MG |
2 | #ifndef __ACPI_VIDEO_H |
3 | #define __ACPI_VIDEO_H | |
4 | ||
b72512ed | 5 | #include <linux/errno.h> /* for ENODEV */ |
90b066b1 | 6 | #include <linux/types.h> /* for bool */ |
b72512ed | 7 | |
05950094 AL |
8 | struct acpi_video_brightness_flags { |
9 | u8 _BCL_no_ac_battery_levels:1; /* no AC/Battery levels in _BCL */ | |
10 | u8 _BCL_reversed:1; /* _BCL package is in a reversed order */ | |
11 | u8 _BQC_use_index:1; /* _BQC returns an index value */ | |
12 | }; | |
13 | ||
14 | struct acpi_video_device_brightness { | |
15 | int curr; | |
16 | int count; | |
17 | int *levels; | |
18 | struct acpi_video_brightness_flags flags; | |
19 | }; | |
20 | ||
b72512ed CW |
21 | struct acpi_device; |
22 | ||
f5a3d0c4 MG |
23 | #define ACPI_VIDEO_CLASS "video" |
24 | ||
e92a7162 MG |
25 | #define ACPI_VIDEO_DISPLAY_CRT 1 |
26 | #define ACPI_VIDEO_DISPLAY_TV 2 | |
27 | #define ACPI_VIDEO_DISPLAY_DVI 3 | |
28 | #define ACPI_VIDEO_DISPLAY_LCD 4 | |
29 | ||
30 | #define ACPI_VIDEO_DISPLAY_LEGACY_MONITOR 0x0100 | |
31 | #define ACPI_VIDEO_DISPLAY_LEGACY_PANEL 0x0110 | |
32 | #define ACPI_VIDEO_DISPLAY_LEGACY_TV 0x0200 | |
33 | ||
eff4a751 HG |
34 | #define ACPI_VIDEO_NOTIFY_SWITCH 0x80 |
35 | #define ACPI_VIDEO_NOTIFY_PROBE 0x81 | |
36 | #define ACPI_VIDEO_NOTIFY_CYCLE 0x82 | |
37 | #define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83 | |
38 | #define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84 | |
39 | #define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x85 | |
40 | #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86 | |
41 | #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87 | |
42 | #define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x88 | |
43 | #define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x89 | |
44 | ||
87521e16 HG |
45 | enum acpi_backlight_type { |
46 | acpi_backlight_undef = -1, | |
47 | acpi_backlight_none = 0, | |
48 | acpi_backlight_video, | |
49 | acpi_backlight_vendor, | |
50 | acpi_backlight_native, | |
51 | }; | |
52 | ||
bcb2b0b2 | 53 | #if IS_ENABLED(CONFIG_ACPI_VIDEO) |
8e5c2b77 | 54 | extern int acpi_video_register(void); |
86e437f0 | 55 | extern void acpi_video_unregister(void); |
e92a7162 MG |
56 | extern int acpi_video_get_edid(struct acpi_device *device, int type, |
57 | int device_id, void **edid); | |
87521e16 HG |
58 | extern enum acpi_backlight_type acpi_video_get_backlight_type(void); |
59 | extern void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type); | |
382d1163 HG |
60 | /* |
61 | * Note: The value returned by acpi_video_handles_brightness_key_presses() | |
62 | * may change over time and should not be cached. | |
63 | */ | |
90b066b1 | 64 | extern bool acpi_video_handles_brightness_key_presses(void); |
05950094 | 65 | extern int acpi_video_get_levels(struct acpi_device *device, |
9f9cd7ee AL |
66 | struct acpi_video_device_brightness **dev_br, |
67 | int *pmax_level); | |
74a365b3 | 68 | #else |
0346223a | 69 | static inline int acpi_video_register(void) { return -ENODEV; } |
86e437f0 | 70 | static inline void acpi_video_unregister(void) { return; } |
e92a7162 MG |
71 | static inline int acpi_video_get_edid(struct acpi_device *device, int type, |
72 | int device_id, void **edid) | |
73 | { | |
74 | return -ENODEV; | |
75 | } | |
87521e16 HG |
76 | static inline enum acpi_backlight_type acpi_video_get_backlight_type(void) |
77 | { | |
78 | return acpi_backlight_vendor; | |
79 | } | |
eddda195 | 80 | static inline void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type) |
87521e16 HG |
81 | { |
82 | } | |
90b066b1 HG |
83 | static inline bool acpi_video_handles_brightness_key_presses(void) |
84 | { | |
85 | return false; | |
86 | } | |
e4f35c13 | 87 | static inline int acpi_video_get_levels(struct acpi_device *device, |
9f9cd7ee AL |
88 | struct acpi_video_device_brightness **dev_br, |
89 | int *pmax_level) | |
05950094 AL |
90 | { |
91 | return -ENODEV; | |
92 | } | |
74a365b3 MG |
93 | #endif |
94 | ||
95 | #endif |