1#ifndef __ACPI_VIDEO_H
2#define __ACPI_VIDEO_H
3
4#include <linux/errno.h> /* for ENODEV */
5
6struct acpi_device;
7
8#define ACPI_VIDEO_CLASS	"video"
9
10#define ACPI_VIDEO_DISPLAY_CRT  1
11#define ACPI_VIDEO_DISPLAY_TV   2
12#define ACPI_VIDEO_DISPLAY_DVI  3
13#define ACPI_VIDEO_DISPLAY_LCD  4
14
15#define ACPI_VIDEO_DISPLAY_LEGACY_MONITOR 0x0100
16#define ACPI_VIDEO_DISPLAY_LEGACY_PANEL   0x0110
17#define ACPI_VIDEO_DISPLAY_LEGACY_TV      0x0200
18
19#if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE)
20extern int acpi_video_register(void);
21extern void acpi_video_unregister(void);
22extern void acpi_video_unregister_backlight(void);
23extern int acpi_video_get_edid(struct acpi_device *device, int type,
24			       int device_id, void **edid);
25extern bool acpi_video_verify_backlight_support(void);
26#else
27static inline int acpi_video_register(void) { return 0; }
28static inline void acpi_video_unregister(void) { return; }
29static inline void acpi_video_unregister_backlight(void) { return; }
30static inline int acpi_video_get_edid(struct acpi_device *device, int type,
31				      int device_id, void **edid)
32{
33	return -ENODEV;
34}
35static inline bool acpi_video_verify_backlight_support(void) { return false; }
36#endif
37
38#endif
39