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 int acpi_video_get_edid(struct acpi_device *device, int type, 23 int device_id, void **edid); 24#else 25static inline int acpi_video_register(void) { return 0; } 26static inline void acpi_video_unregister(void) { return; } 27static 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