include/acpi/video.h

   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 void acpi_video_unregister_backlight(void);
  23 extern int acpi_video_get_edid(struct acpi_device *device, int type,
  24                                int device_id, void **edid);
  25 extern bool acpi_video_verify_backlight_support(void);
  26 #else
  27 static inline int acpi_video_register(void) { return 0; }
  28 static inline void acpi_video_unregister(void) { return; }
  29 static inline void acpi_video_unregister_backlight(void) { return; }
  30 static inline int acpi_video_get_edid(struct acpi_device *device, int type,
  31                                       int device_id, void **edid)
  32 {
  33         return -ENODEV;
  34 }
  35 static inline bool acpi_video_verify_backlight_support(void) { return false; }
  36 #endif
  37
  38 #endif