ba81ffe9958a3c48d55cb16be1e18a0524e27dd0
[linux-2.6.git] / include / linux / screen_info.h
1 #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
10 struct screen_info {
11         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 */
23
24         /* VESA graphic mode -- linear frame buffer */
25         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 */
46 } __attribute__((packed));
47
48 extern struct screen_info screen_info;
49
50 #define VIDEO_TYPE_MDA          0x10    /* Monochrome Text Display      */
51 #define VIDEO_TYPE_CGA          0x11    /* CGA Display                  */
52 #define VIDEO_TYPE_EGAM         0x20    /* EGA/VGA in Monochrome Mode   */
53 #define VIDEO_TYPE_EGAC         0x21    /* EGA in Color Mode            */
54 #define VIDEO_TYPE_VGAC         0x22    /* VGA+ in Color Mode           */
55 #define VIDEO_TYPE_VLFB         0x23    /* VESA VGA in graphic mode     */
56
57 #define VIDEO_TYPE_PICA_S3      0x30    /* ACER PICA-61 local S3 video  */
58 #define VIDEO_TYPE_MIPS_G364    0x31    /* MIPS Magnum 4000 G364 video  */
59 #define VIDEO_TYPE_SGI          0x33    /* Various SGI graphics hardware */
60
61 #define VIDEO_TYPE_TGAC         0x40    /* DEC TGA */
62
63 #define VIDEO_TYPE_SUN          0x50    /* Sun frame buffer. */
64 #define VIDEO_TYPE_SUNPCI       0x51    /* Sun PCI based frame buffer. */
65
66 #define VIDEO_TYPE_PMAC         0x60    /* PowerMacintosh frame buffer. */
67
68 #endif /* _SCREEN_INFO_H */