1 #ifndef __ACPI_VIDEO_H
2 #define __ACPI_VIDEO_H
3 
4 #include <linux/errno.h> /* for ENODEV */
5 
6 struct 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)
20 extern int acpi_video_register(void);
21 extern void acpi_video_unregister(void);
22 extern int acpi_video_get_edid(struct acpi_device *device, int type,
23 			       int device_id, void **edid);
24 #else
acpi_video_register(void)25 static inline int acpi_video_register(void) { return 0; }
acpi_video_unregister(void)26 static inline void acpi_video_unregister(void) { return; }
acpi_video_get_edid(struct acpi_device * device,int type,int device_id,void ** edid)27 static inline int acpi_video_get_edid(struct acpi_device *device, int type,
28 				      int device_id, void **edid)
29 {
30 	return -ENODEV;
31 }
32 #endif
33 
34 #endif
35