| 1 | /** @file
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| 2 | Type definitions related to the VBE (VESA BIOS Extension, Int10h AH=4Fh)
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| 3 | services GET INFORMATION (AL=00h) and GET MODE INFORMATION (AL=01h).
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| 4 |
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| 5 | For reference, see Ralf Brown's Interrupt List:
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| 6 | <http://www.cs.cmu.edu/~ralf/files.html>
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| 7 | <http://www.ctyme.com/rbrown.htm>
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| 8 |
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| 9 | Copyright (C) 2014, Red Hat, Inc.
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| 10 |
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| 11 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 12 | **/
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| 13 |
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| 14 | #ifndef __LEGACY_VGA_BIOS_H__
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| 15 | #define __LEGACY_VGA_BIOS_H__
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| 16 |
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| 17 | #include <Base.h>
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| 18 |
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| 19 | #pragma pack (1)
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| 20 | typedef struct {
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| 21 | UINT8 Signature[4];
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| 22 | UINT16 VesaVersion;
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| 23 | UINT32 OemNameAddress;
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| 24 | UINT32 Capabilities;
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| 25 | UINT32 ModeListAddress;
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| 26 | UINT16 VideoMem64K;
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| 27 | UINT16 OemSoftwareVersion;
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| 28 | UINT32 VendorNameAddress;
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| 29 | UINT32 ProductNameAddress;
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| 30 | UINT32 ProductRevAddress;
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| 31 | } VBE_INFO_BASE;
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| 32 |
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| 33 | typedef struct {
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| 34 | VBE_INFO_BASE Base;
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| 35 | UINT8 Buffer[256 - sizeof (VBE_INFO_BASE)];
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| 36 | } VBE_INFO;
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| 37 |
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| 38 | typedef struct {
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| 39 | UINT16 ModeAttr;
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| 40 | UINT8 WindowAAttr;
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| 41 | UINT8 WindowBAttr;
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| 42 | UINT16 WindowGranularityKB;
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| 43 | UINT16 WindowSizeKB;
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| 44 | UINT16 WindowAStartSegment;
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| 45 | UINT16 WindowBStartSegment;
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| 46 | UINT32 WindowPositioningAddress;
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| 47 | UINT16 BytesPerScanLine;
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| 48 |
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| 49 | UINT16 Width;
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| 50 | UINT16 Height;
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| 51 | UINT8 CharCellWidth;
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| 52 | UINT8 CharCellHeight;
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| 53 | UINT8 NumPlanes;
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| 54 | UINT8 BitsPerPixel;
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| 55 | UINT8 NumBanks;
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| 56 | UINT8 MemoryModel;
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| 57 | UINT8 BankSizeKB;
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| 58 | UINT8 NumImagePagesLessOne;
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| 59 | UINT8 Vbe3;
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| 60 |
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| 61 | UINT8 RedMaskSize;
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| 62 | UINT8 RedMaskPos;
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| 63 | UINT8 GreenMaskSize;
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| 64 | UINT8 GreenMaskPos;
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| 65 | UINT8 BlueMaskSize;
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| 66 | UINT8 BlueMaskPos;
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| 67 | UINT8 ReservedMaskSize;
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| 68 | UINT8 ReservedMaskPos;
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| 69 | UINT8 DirectColorModeInfo;
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| 70 |
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| 71 | UINT32 LfbAddress;
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| 72 | UINT32 OffScreenAddress;
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| 73 | UINT16 OffScreenSizeKB;
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| 74 |
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| 75 | UINT16 BytesPerScanLineLinear;
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| 76 | UINT8 NumImagesLessOneBanked;
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| 77 | UINT8 NumImagesLessOneLinear;
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| 78 | UINT8 RedMaskSizeLinear;
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| 79 | UINT8 RedMaskPosLinear;
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| 80 | UINT8 GreenMaskSizeLinear;
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| 81 | UINT8 GreenMaskPosLinear;
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| 82 | UINT8 BlueMaskSizeLinear;
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| 83 | UINT8 BlueMaskPosLinear;
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| 84 | UINT8 ReservedMaskSizeLinear;
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| 85 | UINT8 ReservedMaskPosLinear;
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| 86 | UINT32 MaxPixelClockHz;
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| 87 | UINT8 Reserved[190];
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| 88 | } VBE_MODE_INFO;
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| 89 |
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| 90 | typedef struct {
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| 91 | UINT16 ModeAttr;
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| 92 | UINT8 WindowAAttr;
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| 93 | UINT8 WindowBAttr;
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| 94 | UINT16 WindowGranularityKB;
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| 95 | UINT16 WindowSizeKB;
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| 96 | UINT16 WindowAStartSegment;
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| 97 | UINT16 WindowBStartSegment;
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| 98 | UINT32 WindowPositioningAddress;
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| 99 | UINT16 BytesPerScanLine;
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| 100 |
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| 101 | UINT16 Width;
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| 102 | UINT16 Height;
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| 103 | UINT8 CharCellWidth;
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| 104 | UINT8 CharCellHeight;
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| 105 | UINT8 NumPlanes;
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| 106 | UINT8 BitsPerPixel;
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| 107 | UINT8 NumBanks;
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| 108 | UINT8 MemoryModel;
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| 109 | UINT8 BankSizeKB;
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| 110 | UINT8 NumImagePagesLessOne;
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| 111 | UINT8 Vbe3;
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| 112 |
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| 113 | UINT8 RedMaskSize;
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| 114 | UINT8 RedMaskPos;
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| 115 | UINT8 GreenMaskSize;
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| 116 | UINT8 GreenMaskPos;
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| 117 | UINT8 BlueMaskSize;
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| 118 | UINT8 BlueMaskPos;
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| 119 | UINT8 ReservedMaskSize;
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| 120 | UINT8 ReservedMaskPos;
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| 121 | UINT8 DirectColorModeInfo;
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| 122 |
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| 123 | UINT32 LfbAddress;
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| 124 | UINT32 OffScreenAddress;
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| 125 | UINT16 OffScreenSizeKB;
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| 126 | } VBE2_MODE_INFO;
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| 127 | #pragma pack ()
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| 128 |
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| 129 | #endif
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