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-rw-r--r--kernel/include/acpi/video.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/kernel/include/acpi/video.h b/kernel/include/acpi/video.h
new file mode 100644
index 000000000..843ef1adf
--- /dev/null
+++ b/kernel/include/acpi/video.h
@@ -0,0 +1,38 @@
+#ifndef __ACPI_VIDEO_H
+#define __ACPI_VIDEO_H
+
+#include <linux/errno.h> /* for ENODEV */
+
+struct acpi_device;
+
+#define ACPI_VIDEO_CLASS "video"
+
+#define ACPI_VIDEO_DISPLAY_CRT 1
+#define ACPI_VIDEO_DISPLAY_TV 2
+#define ACPI_VIDEO_DISPLAY_DVI 3
+#define ACPI_VIDEO_DISPLAY_LCD 4
+
+#define ACPI_VIDEO_DISPLAY_LEGACY_MONITOR 0x0100
+#define ACPI_VIDEO_DISPLAY_LEGACY_PANEL 0x0110
+#define ACPI_VIDEO_DISPLAY_LEGACY_TV 0x0200
+
+#if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE)
+extern int acpi_video_register(void);
+extern void acpi_video_unregister(void);
+extern void acpi_video_unregister_backlight(void);
+extern int acpi_video_get_edid(struct acpi_device *device, int type,
+ int device_id, void **edid);
+extern bool acpi_video_verify_backlight_support(void);
+#else
+static inline int acpi_video_register(void) { return 0; }
+static inline void acpi_video_unregister(void) { return; }
+static inline void acpi_video_unregister_backlight(void) { return; }
+static inline int acpi_video_get_edid(struct acpi_device *device, int type,
+ int device_id, void **edid)
+{
+ return -ENODEV;
+}
+static inline bool acpi_video_verify_backlight_support(void) { return false; }
+#endif
+
+#endif