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 39