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Brian Gerst7e7f3582006-01-08 01:04:54 -08001#ifndef _SCREEN_INFO_H
2#define _SCREEN_INFO_H
3
4#include <linux/types.h>
5
6/*
7 * These are set up by the setup-routine at boot-time:
8 */
9
10struct screen_info {
Rusty Russellee8e7cf2007-10-22 10:56:19 +100011 __u8 orig_x; /* 0x00 */
12 __u8 orig_y; /* 0x01 */
13 __u16 ext_mem_k; /* 0x02 */
14 __u16 orig_video_page; /* 0x04 */
15 __u8 orig_video_mode; /* 0x06 */
16 __u8 orig_video_cols; /* 0x07 */
17 __u16 unused2; /* 0x08 */
18 __u16 orig_video_ega_bx;/* 0x0a */
19 __u16 unused3; /* 0x0c */
20 __u8 orig_video_lines; /* 0x0e */
21 __u8 orig_video_isVGA; /* 0x0f */
22 __u16 orig_video_points;/* 0x10 */
Brian Gerst7e7f3582006-01-08 01:04:54 -080023
24 /* VESA graphic mode -- linear frame buffer */
Rusty Russellee8e7cf2007-10-22 10:56:19 +100025 __u16 lfb_width; /* 0x12 */
26 __u16 lfb_height; /* 0x14 */
27 __u16 lfb_depth; /* 0x16 */
28 __u32 lfb_base; /* 0x18 */
29 __u32 lfb_size; /* 0x1c */
30 __u16 cl_magic, cl_offset; /* 0x20 */
31 __u16 lfb_linelength; /* 0x24 */
32 __u8 red_size; /* 0x26 */
33 __u8 red_pos; /* 0x27 */
34 __u8 green_size; /* 0x28 */
35 __u8 green_pos; /* 0x29 */
36 __u8 blue_size; /* 0x2a */
37 __u8 blue_pos; /* 0x2b */
38 __u8 rsvd_size; /* 0x2c */
39 __u8 rsvd_pos; /* 0x2d */
40 __u16 vesapm_seg; /* 0x2e */
41 __u16 vesapm_off; /* 0x30 */
42 __u16 pages; /* 0x32 */
43 __u16 vesa_attributes; /* 0x34 */
44 __u32 capabilities; /* 0x36 */
45 __u8 _reserved[6]; /* 0x3a */
H. Peter Anvine087db52007-07-11 12:18:31 -070046} __attribute__((packed));
Brian Gerst7e7f3582006-01-08 01:04:54 -080047
Brian Gerst7e7f3582006-01-08 01:04:54 -080048#define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
49#define VIDEO_TYPE_CGA 0x11 /* CGA Display */
50#define VIDEO_TYPE_EGAM 0x20 /* EGA/VGA in Monochrome Mode */
51#define VIDEO_TYPE_EGAC 0x21 /* EGA in Color Mode */
52#define VIDEO_TYPE_VGAC 0x22 /* VGA+ in Color Mode */
53#define VIDEO_TYPE_VLFB 0x23 /* VESA VGA in graphic mode */
54
55#define VIDEO_TYPE_PICA_S3 0x30 /* ACER PICA-61 local S3 video */
56#define VIDEO_TYPE_MIPS_G364 0x31 /* MIPS Magnum 4000 G364 video */
57#define VIDEO_TYPE_SGI 0x33 /* Various SGI graphics hardware */
58
59#define VIDEO_TYPE_TGAC 0x40 /* DEC TGA */
60
61#define VIDEO_TYPE_SUN 0x50 /* Sun frame buffer. */
62#define VIDEO_TYPE_SUNPCI 0x51 /* Sun PCI based frame buffer. */
63
64#define VIDEO_TYPE_PMAC 0x60 /* PowerMacintosh frame buffer. */
65
Huang, Ying7c831722007-11-28 16:21:55 -080066#define VIDEO_TYPE_EFI 0x70 /* EFI graphic mode */
67
Rusty Russellee8e7cf2007-10-22 10:56:19 +100068#ifdef __KERNEL__
69extern struct screen_info screen_info;
70
71#define ORIG_X (screen_info.orig_x)
72#define ORIG_Y (screen_info.orig_y)
73#define ORIG_VIDEO_MODE (screen_info.orig_video_mode)
74#define ORIG_VIDEO_COLS (screen_info.orig_video_cols)
75#define ORIG_VIDEO_EGA_BX (screen_info.orig_video_ega_bx)
76#define ORIG_VIDEO_LINES (screen_info.orig_video_lines)
77#define ORIG_VIDEO_ISVGA (screen_info.orig_video_isVGA)
78#define ORIG_VIDEO_POINTS (screen_info.orig_video_points)
79#endif /* __KERNEL__ */
80
Brian Gerst7e7f3582006-01-08 01:04:54 -080081#endif /* _SCREEN_INFO_H */