| H. Peter Anvin | 5e8ddcbe | 2007-07-11 12:18:52 -0700 | [diff] [blame] | 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 | |
| 29 | u16 oem_software_rev; /* 20 */ |
| 30 | far_ptr oem_vendor_name_ptr; /* 22 */ |
| 31 | far_ptr oem_product_name_ptr; /* 26 */ |
| 32 | far_ptr oem_product_rev_ptr; /* 30 */ |
| 33 | |
| 34 | u8 reserved[222]; /* 34 */ |
| 35 | u8 oem_data[256]; /* 256 */ |
| 36 | } __attribute__ ((packed)); |
| 37 | |
| 38 | #define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24)) |
| 39 | #define VBE2_MAGIC ('V' + ('B' << 8) + ('E' << 16) + ('2' << 24)) |
| 40 | |
| 41 | struct vesa_mode_info { |
| 42 | u16 mode_attr; /* 0 */ |
| 43 | u8 win_attr[2]; /* 2 */ |
| 44 | u16 win_grain; /* 4 */ |
| 45 | u16 win_size; /* 6 */ |
| 46 | u16 win_seg[2]; /* 8 */ |
| 47 | far_ptr win_scheme; /* 12 */ |
| 48 | u16 logical_scan; /* 16 */ |
| 49 | |
| 50 | u16 h_res; /* 18 */ |
| 51 | u16 v_res; /* 20 */ |
| 52 | u8 char_width; /* 22 */ |
| 53 | u8 char_height; /* 23 */ |
| 54 | u8 memory_planes; /* 24 */ |
| 55 | u8 bpp; /* 25 */ |
| 56 | u8 banks; /* 26 */ |
| 57 | u8 memory_layout; /* 27 */ |
| 58 | u8 bank_size; /* 28 */ |
| 59 | u8 image_planes; /* 29 */ |
| 60 | u8 page_function; /* 30 */ |
| 61 | |
| 62 | u8 rmask; /* 31 */ |
| 63 | u8 rpos; /* 32 */ |
| 64 | u8 gmask; /* 33 */ |
| 65 | u8 gpos; /* 34 */ |
| 66 | u8 bmask; /* 35 */ |
| 67 | u8 bpos; /* 36 */ |
| 68 | u8 resv_mask; /* 37 */ |
| 69 | u8 resv_pos; /* 38 */ |
| 70 | u8 dcm_info; /* 39 */ |
| 71 | |
| 72 | u32 lfb_ptr; /* 40 Linear frame buffer address */ |
| 73 | u32 offscreen_ptr; /* 44 Offscreen memory address */ |
| 74 | u16 offscreen_size; /* 48 */ |
| 75 | |
| 76 | u8 reserved[206]; /* 50 */ |
| 77 | } __attribute__ ((packed)); |
| 78 | |
| 79 | #endif /* LIB_SYS_VESA_H */ |