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, | |
fe7aebb4 | 51 | acpi_backlight_nvidia_wmi_ec, |
21245df3 | 52 | acpi_backlight_apple_gmux, |
87521e16 HG |
53 | }; |
54 | ||
bcb2b0b2 | 55 | #if IS_ENABLED(CONFIG_ACPI_VIDEO) |
8e5c2b77 | 56 | extern int acpi_video_register(void); |
86e437f0 | 57 | extern void acpi_video_unregister(void); |
3dbc80a3 | 58 | extern void acpi_video_register_backlight(void); |
e92a7162 MG |
59 | extern int acpi_video_get_edid(struct acpi_device *device, int type, |
60 | int device_id, void **edid); | |
382d1163 HG |
61 | /* |
62 | * Note: The value returned by acpi_video_handles_brightness_key_presses() | |
63 | * may change over time and should not be cached. | |
64 | */ | |
90b066b1 | 65 | extern bool acpi_video_handles_brightness_key_presses(void); |
05950094 | 66 | extern int acpi_video_get_levels(struct acpi_device *device, |
9f9cd7ee AL |
67 | struct acpi_video_device_brightness **dev_br, |
68 | int *pmax_level); | |
78dfc9d1 HG |
69 | |
70 | extern enum acpi_backlight_type __acpi_video_get_backlight_type(bool native, | |
71 | bool *auto_detect); | |
72 | ||
73 | static inline enum acpi_backlight_type acpi_video_get_backlight_type(void) | |
74 | { | |
75 | return __acpi_video_get_backlight_type(false, NULL); | |
76 | } | |
77 | ||
78 | static inline bool acpi_video_backlight_use_native(void) | |
79 | { | |
80 | return __acpi_video_get_backlight_type(true, NULL) == acpi_backlight_native; | |
81 | } | |
74a365b3 | 82 | #else |
0346223a | 83 | static inline int acpi_video_register(void) { return -ENODEV; } |
86e437f0 | 84 | static inline void acpi_video_unregister(void) { return; } |
3dbc80a3 | 85 | static inline void acpi_video_register_backlight(void) { return; } |
e92a7162 MG |
86 | static inline int acpi_video_get_edid(struct acpi_device *device, int type, |
87 | int device_id, void **edid) | |
88 | { | |
89 | return -ENODEV; | |
90 | } | |
87521e16 HG |
91 | static inline enum acpi_backlight_type acpi_video_get_backlight_type(void) |
92 | { | |
93 | return acpi_backlight_vendor; | |
94 | } | |
2600bfa3 HG |
95 | static inline bool acpi_video_backlight_use_native(void) |
96 | { | |
97 | return true; | |
98 | } | |
90b066b1 HG |
99 | static inline bool acpi_video_handles_brightness_key_presses(void) |
100 | { | |
101 | return false; | |
102 | } | |
e4f35c13 | 103 | static inline int acpi_video_get_levels(struct acpi_device *device, |
9f9cd7ee AL |
104 | struct acpi_video_device_brightness **dev_br, |
105 | int *pmax_level) | |
05950094 AL |
106 | { |
107 | return -ENODEV; | |
108 | } | |
74a365b3 MG |
109 | #endif |
110 | ||
111 | #endif |