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1 | /* ----------------------------------------------------------------------- * |
2 | * | |
3 | * Copyright 1999-2007 H. Peter Anvin - All Rights Reserved | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation, Inc., 53 Temple Place Ste 330, | |
8 | * Boston MA 02111-1307, USA; either version 2 of the License, or | |
9 | * (at your option) any later version; incorporated herein by reference. | |
10 | * | |
11 | * ----------------------------------------------------------------------- */ | |
12 | ||
13 | #ifndef BOOT_VESA_H | |
14 | #define BOOT_VESA_H | |
15 | ||
16 | typedef struct { | |
17 | u16 off, seg; | |
18 | } far_ptr; | |
19 | ||
20 | /* VESA General Information table */ | |
21 | struct vesa_general_info { | |
22 | u32 signature; /* 0 Magic number = "VESA" */ | |
23 | u16 version; /* 4 */ | |
24 | far_ptr vendor_string; /* 6 */ | |
25 | u32 capabilities; /* 10 */ | |
26 | far_ptr video_mode_ptr; /* 14 */ | |
27 | u16 total_memory; /* 18 */ | |
28 | ||
1722770f | 29 | u8 reserved[236]; /* 20 */ |
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30 | } __attribute__ ((packed)); |
31 | ||
32 | #define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24)) | |
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33 | |
34 | struct vesa_mode_info { | |
35 | u16 mode_attr; /* 0 */ | |
36 | u8 win_attr[2]; /* 2 */ | |
37 | u16 win_grain; /* 4 */ | |
38 | u16 win_size; /* 6 */ | |
39 | u16 win_seg[2]; /* 8 */ | |
40 | far_ptr win_scheme; /* 12 */ | |
41 | u16 logical_scan; /* 16 */ | |
42 | ||
43 | u16 h_res; /* 18 */ | |
44 | u16 v_res; /* 20 */ | |
45 | u8 char_width; /* 22 */ | |
46 | u8 char_height; /* 23 */ | |
47 | u8 memory_planes; /* 24 */ | |
48 | u8 bpp; /* 25 */ | |
49 | u8 banks; /* 26 */ | |
50 | u8 memory_layout; /* 27 */ | |
51 | u8 bank_size; /* 28 */ | |
52 | u8 image_planes; /* 29 */ | |
53 | u8 page_function; /* 30 */ | |
54 | ||
55 | u8 rmask; /* 31 */ | |
56 | u8 rpos; /* 32 */ | |
57 | u8 gmask; /* 33 */ | |
58 | u8 gpos; /* 34 */ | |
59 | u8 bmask; /* 35 */ | |
60 | u8 bpos; /* 36 */ | |
61 | u8 resv_mask; /* 37 */ | |
62 | u8 resv_pos; /* 38 */ | |
63 | u8 dcm_info; /* 39 */ | |
64 | ||
65 | u32 lfb_ptr; /* 40 Linear frame buffer address */ | |
66 | u32 offscreen_ptr; /* 44 Offscreen memory address */ | |
67 | u16 offscreen_size; /* 48 */ | |
68 | ||
69 | u8 reserved[206]; /* 50 */ | |
70 | } __attribute__ ((packed)); | |
71 | ||
72 | #endif /* LIB_SYS_VESA_H */ |