1 /* SPDX-License-Identifier: GPL-2.0 */ <<
2 #ifndef __ACPI_VIDEO_H 1 #ifndef __ACPI_VIDEO_H
3 #define __ACPI_VIDEO_H 2 #define __ACPI_VIDEO_H
4 3
5 #include <linux/errno.h> /* for ENODEV */ 4 #include <linux/errno.h> /* for ENODEV */
6 #include <linux/types.h> /* for bool */ 5 #include <linux/types.h> /* for bool */
7 6
8 struct acpi_video_brightness_flags { 7 struct acpi_video_brightness_flags {
9 u8 _BCL_no_ac_battery_levels:1; /* no 8 u8 _BCL_no_ac_battery_levels:1; /* no AC/Battery levels in _BCL */
10 u8 _BCL_reversed:1; /* _BC 9 u8 _BCL_reversed:1; /* _BCL package is in a reversed order */
11 u8 _BQC_use_index:1; /* _BQ 10 u8 _BQC_use_index:1; /* _BQC returns an index value */
12 }; 11 };
13 12
14 struct acpi_video_device_brightness { 13 struct acpi_video_device_brightness {
15 int curr; 14 int curr;
16 int count; 15 int count;
17 int *levels; 16 int *levels;
18 struct acpi_video_brightness_flags fla 17 struct acpi_video_brightness_flags flags;
19 }; 18 };
20 19
21 struct acpi_device; 20 struct acpi_device;
22 21
23 #define ACPI_VIDEO_CLASS "video" 22 #define ACPI_VIDEO_CLASS "video"
24 23
25 #define ACPI_VIDEO_DISPLAY_CRT 1 24 #define ACPI_VIDEO_DISPLAY_CRT 1
26 #define ACPI_VIDEO_DISPLAY_TV 2 25 #define ACPI_VIDEO_DISPLAY_TV 2
27 #define ACPI_VIDEO_DISPLAY_DVI 3 26 #define ACPI_VIDEO_DISPLAY_DVI 3
28 #define ACPI_VIDEO_DISPLAY_LCD 4 27 #define ACPI_VIDEO_DISPLAY_LCD 4
29 28
30 #define ACPI_VIDEO_DISPLAY_LEGACY_MONITOR 0x01 29 #define ACPI_VIDEO_DISPLAY_LEGACY_MONITOR 0x0100
31 #define ACPI_VIDEO_DISPLAY_LEGACY_PANEL 0x01 30 #define ACPI_VIDEO_DISPLAY_LEGACY_PANEL 0x0110
32 #define ACPI_VIDEO_DISPLAY_LEGACY_TV 0x02 31 #define ACPI_VIDEO_DISPLAY_LEGACY_TV 0x0200
33 32
34 #define ACPI_VIDEO_NOTIFY_SWITCH 33 #define ACPI_VIDEO_NOTIFY_SWITCH 0x80
35 #define ACPI_VIDEO_NOTIFY_PROBE 34 #define ACPI_VIDEO_NOTIFY_PROBE 0x81
36 #define ACPI_VIDEO_NOTIFY_CYCLE 35 #define ACPI_VIDEO_NOTIFY_CYCLE 0x82
37 #define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 36 #define ACPI_VIDEO_NOTIFY_NEXT_OUTPUT 0x83
38 #define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 37 #define ACPI_VIDEO_NOTIFY_PREV_OUTPUT 0x84
39 #define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 38 #define ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS 0x85
40 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 39 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86
41 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 40 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
42 #define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 41 #define ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS 0x88
43 #define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 42 #define ACPI_VIDEO_NOTIFY_DISPLAY_OFF 0x89
44 43
45 enum acpi_backlight_type { 44 enum acpi_backlight_type {
46 acpi_backlight_undef = -1, 45 acpi_backlight_undef = -1,
47 acpi_backlight_none = 0, 46 acpi_backlight_none = 0,
48 acpi_backlight_video, 47 acpi_backlight_video,
49 acpi_backlight_vendor, 48 acpi_backlight_vendor,
50 acpi_backlight_native, 49 acpi_backlight_native,
51 acpi_backlight_nvidia_wmi_ec, <<
52 acpi_backlight_apple_gmux, <<
53 acpi_backlight_dell_uart, <<
54 }; 50 };
55 51
56 #if IS_ENABLED(CONFIG_ACPI_VIDEO) 52 #if IS_ENABLED(CONFIG_ACPI_VIDEO)
57 extern int acpi_video_register(void); 53 extern int acpi_video_register(void);
58 extern void acpi_video_unregister(void); 54 extern void acpi_video_unregister(void);
59 extern void acpi_video_register_backlight(void <<
60 extern int acpi_video_get_edid(struct acpi_dev 55 extern int acpi_video_get_edid(struct acpi_device *device, int type,
61 int device_id, 56 int device_id, void **edid);
>> 57 extern enum acpi_backlight_type acpi_video_get_backlight_type(void);
>> 58 extern void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type);
62 /* 59 /*
63 * Note: The value returned by acpi_video_hand 60 * Note: The value returned by acpi_video_handles_brightness_key_presses()
64 * may change over time and should not be cach 61 * may change over time and should not be cached.
65 */ 62 */
66 extern bool acpi_video_handles_brightness_key_ 63 extern bool acpi_video_handles_brightness_key_presses(void);
67 extern int acpi_video_get_levels(struct acpi_d 64 extern int acpi_video_get_levels(struct acpi_device *device,
68 struct acpi_v 65 struct acpi_video_device_brightness **dev_br,
69 int *pmax_lev 66 int *pmax_level);
70 <<
71 extern enum acpi_backlight_type __acpi_video_g <<
72 <<
73 <<
74 static inline enum acpi_backlight_type acpi_vi <<
75 { <<
76 return __acpi_video_get_backlight_type <<
77 } <<
78 <<
79 /* <<
80 * This function MUST only be called by GPU dr <<
81 * should register a backlight class device. T <<
82 * if a GPU native backlight device should be <<
83 * the ACPI video-detect code that native GPU <<
84 * Therefor calling this from any place other <<
85 * To check if GPU native backlight control is <<
86 * if (acpi_video_get_backlight_type() == ac <<
87 */ <<
88 static inline bool acpi_video_backlight_use_na <<
89 { <<
90 return __acpi_video_get_backlight_type <<
91 } <<
92 #else 67 #else
93 static inline int acpi_video_register(void) { 68 static inline int acpi_video_register(void) { return -ENODEV; }
94 static inline void acpi_video_unregister(void) 69 static inline void acpi_video_unregister(void) { return; }
95 static inline void acpi_video_register_backlig <<
96 static inline int acpi_video_get_edid(struct a 70 static inline int acpi_video_get_edid(struct acpi_device *device, int type,
97 int devi 71 int device_id, void **edid)
98 { 72 {
99 return -ENODEV; 73 return -ENODEV;
100 } 74 }
101 static inline enum acpi_backlight_type acpi_vi 75 static inline enum acpi_backlight_type acpi_video_get_backlight_type(void)
102 { 76 {
103 return acpi_backlight_vendor; 77 return acpi_backlight_vendor;
104 } 78 }
105 static inline bool acpi_video_backlight_use_na !! 79 static inline void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type)
106 { 80 {
107 return true; <<
108 } 81 }
109 static inline bool acpi_video_handles_brightne 82 static inline bool acpi_video_handles_brightness_key_presses(void)
110 { 83 {
111 return false; 84 return false;
112 } 85 }
113 static inline int acpi_video_get_levels(struct 86 static inline int acpi_video_get_levels(struct acpi_device *device,
114 struct acpi_video_devi 87 struct acpi_video_device_brightness **dev_br,
115 int *pmax_level) 88 int *pmax_level)
116 { 89 {
117 return -ENODEV; 90 return -ENODEV;
118 } 91 }
119 #endif 92 #endif
120 93
121 #endif 94 #endif
122 95
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