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dd165a65 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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2 | /* ----------------------------------------------------------------------- * |
3 | * | |
4 | * Copyright 1999-2007 H. Peter Anvin - All Rights Reserved | |
5 | * | |
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6 | * ----------------------------------------------------------------------- */ |
7 | ||
8 | #ifndef BOOT_VESA_H | |
9 | #define BOOT_VESA_H | |
10 | ||
11 | typedef struct { | |
12 | u16 off, seg; | |
13 | } far_ptr; | |
14 | ||
15 | /* VESA General Information table */ | |
16 | struct vesa_general_info { | |
17 | u32 signature; /* 0 Magic number = "VESA" */ | |
18 | u16 version; /* 4 */ | |
19 | far_ptr vendor_string; /* 6 */ | |
20 | u32 capabilities; /* 10 */ | |
21 | far_ptr video_mode_ptr; /* 14 */ | |
22 | u16 total_memory; /* 18 */ | |
23 | ||
1722770f | 24 | u8 reserved[236]; /* 20 */ |
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25 | } __attribute__ ((packed)); |
26 | ||
27 | #define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24)) | |
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28 | |
29 | struct vesa_mode_info { | |
30 | u16 mode_attr; /* 0 */ | |
31 | u8 win_attr[2]; /* 2 */ | |
32 | u16 win_grain; /* 4 */ | |
33 | u16 win_size; /* 6 */ | |
34 | u16 win_seg[2]; /* 8 */ | |
35 | far_ptr win_scheme; /* 12 */ | |
36 | u16 logical_scan; /* 16 */ | |
37 | ||
38 | u16 h_res; /* 18 */ | |
39 | u16 v_res; /* 20 */ | |
40 | u8 char_width; /* 22 */ | |
41 | u8 char_height; /* 23 */ | |
42 | u8 memory_planes; /* 24 */ | |
43 | u8 bpp; /* 25 */ | |
44 | u8 banks; /* 26 */ | |
45 | u8 memory_layout; /* 27 */ | |
46 | u8 bank_size; /* 28 */ | |
47 | u8 image_planes; /* 29 */ | |
48 | u8 page_function; /* 30 */ | |
49 | ||
50 | u8 rmask; /* 31 */ | |
51 | u8 rpos; /* 32 */ | |
52 | u8 gmask; /* 33 */ | |
53 | u8 gpos; /* 34 */ | |
54 | u8 bmask; /* 35 */ | |
55 | u8 bpos; /* 36 */ | |
56 | u8 resv_mask; /* 37 */ | |
57 | u8 resv_pos; /* 38 */ | |
58 | u8 dcm_info; /* 39 */ | |
59 | ||
60 | u32 lfb_ptr; /* 40 Linear frame buffer address */ | |
61 | u32 offscreen_ptr; /* 44 Offscreen memory address */ | |
62 | u16 offscreen_size; /* 48 */ | |
63 | ||
64 | u8 reserved[206]; /* 50 */ | |
65 | } __attribute__ ((packed)); | |
66 | ||
67 | #endif /* LIB_SYS_VESA_H */ |