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67 lines
1.6 KiB
67 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* ----------------------------------------------------------------------- * |
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* |
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* Copyright 1999-2007 H. Peter Anvin - All Rights Reserved |
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* |
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* ----------------------------------------------------------------------- */ |
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#ifndef BOOT_VESA_H |
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#define BOOT_VESA_H |
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typedef struct { |
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u16 off, seg; |
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} far_ptr; |
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/* VESA General Information table */ |
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struct vesa_general_info { |
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u32 signature; /* 0 Magic number = "VESA" */ |
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u16 version; /* 4 */ |
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far_ptr vendor_string; /* 6 */ |
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u32 capabilities; /* 10 */ |
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far_ptr video_mode_ptr; /* 14 */ |
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u16 total_memory; /* 18 */ |
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u8 reserved[236]; /* 20 */ |
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} __attribute__ ((packed)); |
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#define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24)) |
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struct vesa_mode_info { |
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u16 mode_attr; /* 0 */ |
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u8 win_attr[2]; /* 2 */ |
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u16 win_grain; /* 4 */ |
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u16 win_size; /* 6 */ |
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u16 win_seg[2]; /* 8 */ |
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far_ptr win_scheme; /* 12 */ |
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u16 logical_scan; /* 16 */ |
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u16 h_res; /* 18 */ |
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u16 v_res; /* 20 */ |
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u8 char_width; /* 22 */ |
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u8 char_height; /* 23 */ |
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u8 memory_planes; /* 24 */ |
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u8 bpp; /* 25 */ |
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u8 banks; /* 26 */ |
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u8 memory_layout; /* 27 */ |
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u8 bank_size; /* 28 */ |
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u8 image_planes; /* 29 */ |
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u8 page_function; /* 30 */ |
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u8 rmask; /* 31 */ |
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u8 rpos; /* 32 */ |
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u8 gmask; /* 33 */ |
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u8 gpos; /* 34 */ |
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u8 bmask; /* 35 */ |
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u8 bpos; /* 36 */ |
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u8 resv_mask; /* 37 */ |
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u8 resv_pos; /* 38 */ |
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u8 dcm_info; /* 39 */ |
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u32 lfb_ptr; /* 40 Linear frame buffer address */ |
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u32 offscreen_ptr; /* 44 Offscreen memory address */ |
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u16 offscreen_size; /* 48 */ |
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u8 reserved[206]; /* 50 */ |
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} __attribute__ ((packed)); |
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#endif /* LIB_SYS_VESA_H */
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