| 1 | #ifndef vbe_h_included
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| 2 | #define vbe_h_included
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| 3 |
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| 4 | #include "vgabios.h"
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| 5 |
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| 6 | #include <VBoxVideoVBE.h>
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| 7 | #include <VBoxVideoVBEPrivate.h>
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| 8 |
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| 9 | // DISPI helper function
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| 10 | //void dispi_set_enable(Boolean enable);
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| 11 |
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| 12 | /** VBE int10 API
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| 13 | *
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| 14 | * See the function descriptions in vbe.c for more information
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| 15 | */
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| 16 |
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| 17 | /* Far pointer for VBE info block usage. */
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| 18 | typedef union vbe_ptr {
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| 19 | uint32_t Ptr32;
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| 20 | void __far *Ptr;
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| 21 | union {
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| 22 | uint16_t Off;
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| 23 | uint16_t Seg;
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| 24 | };
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| 25 | } vbe_ptr;
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| 26 |
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| 27 | // The official VBE Information Block
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| 28 | typedef struct VbeInfoBlock
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| 29 | {
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| 30 | union {
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| 31 | uint8_t SigChr[4];
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| 32 | uint32_t Sig32;
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| 33 | } VbeSignature;
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| 34 | uint16_t VbeVersion;
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| 35 | vbe_ptr OemString;
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| 36 | uint8_t Capabilities[4];
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| 37 | uint16_t VideoModePtr_Off;
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| 38 | uint16_t VideoModePtr_Seg;
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| 39 | uint16_t TotalMemory;
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| 40 | uint16_t OemSoftwareRev;
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| 41 | vbe_ptr OemVendorName;
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| 42 | vbe_ptr OemProductName;
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| 43 | vbe_ptr OemProductRev;
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| 44 | uint16_t Reserved[111]; // used for dynamically generated mode list
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| 45 | uint8_t OemData[256];
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| 46 | } VbeInfoBlock;
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| 47 |
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| 48 |
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| 49 | typedef struct ModeInfoBlock
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| 50 | {
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| 51 | // Mandatory information for all VBE revisions
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| 52 | uint16_t ModeAttributes;
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| 53 | uint8_t WinAAttributes;
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| 54 | uint8_t WinBAttributes;
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| 55 | uint16_t WinGranularity;
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| 56 | uint16_t WinSize;
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| 57 | uint16_t WinASegment;
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| 58 | uint16_t WinBSegment;
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| 59 | uint32_t WinFuncPtr;
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| 60 | uint16_t BytesPerScanLine;
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| 61 | // Mandatory information for VBE 1.2 and above
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| 62 | uint16_t XResolution;
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| 63 | uint16_t YResolution;
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| 64 | uint8_t XCharSize;
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| 65 | uint8_t YCharSize;
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| 66 | uint8_t NumberOfPlanes;
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| 67 | uint8_t BitsPerPixel;
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| 68 | uint8_t NumberOfBanks;
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| 69 | uint8_t MemoryModel;
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| 70 | uint8_t BankSize;
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| 71 | uint8_t NumberOfImagePages;
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| 72 | uint8_t Reserved_page;
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| 73 | // Direct Color fields (required for direct/6 and YUV/7 memory models)
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| 74 | uint8_t RedMaskSize;
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| 75 | uint8_t RedFieldPosition;
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| 76 | uint8_t GreenMaskSize;
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| 77 | uint8_t GreenFieldPosition;
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| 78 | uint8_t BlueMaskSize;
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| 79 | uint8_t BlueFieldPosition;
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| 80 | uint8_t RsvdMaskSize;
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| 81 | uint8_t RsvdFieldPosition;
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| 82 | uint8_t DirectColorModeInfo;
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| 83 | // Mandatory information for VBE 2.0 and above
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| 84 | uint32_t PhysBasePtr;
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| 85 | uint32_t OffScreenMemOffset;
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| 86 | uint16_t OffScreenMemSize;
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| 87 | // Mandatory information for VBE 3.0 and above
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| 88 | uint16_t LinBytesPerScanLine;
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| 89 | uint8_t BnkNumberOfPages;
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| 90 | uint8_t LinNumberOfPages;
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| 91 | uint8_t LinRedMaskSize;
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| 92 | uint8_t LinRedFieldPosition;
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| 93 | uint8_t LinGreenMaskSize;
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| 94 | uint8_t LinGreenFieldPosition;
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| 95 | uint8_t LinBlueMaskSize;
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| 96 | uint8_t LinBlueFieldPosition;
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| 97 | uint8_t LinRsvdMaskSize;
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| 98 | uint8_t LinRsvdFieldPosition;
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| 99 | uint32_t MaxPixelClock;
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| 100 | uint8_t Reserved[189];
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| 101 | } ModeInfoBlock;
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| 102 |
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| 103 | // VBE Return Status Info
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| 104 | // AL
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| 105 | #define VBE_RETURN_STATUS_SUPPORTED 0x4F
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| 106 | #define VBE_RETURN_STATUS_UNSUPPORTED 0x00
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| 107 | // AH
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| 108 | #define VBE_RETURN_STATUS_SUCCESSFULL 0x00
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| 109 | #define VBE_RETURN_STATUS_FAILED 0x01
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| 110 | #define VBE_RETURN_STATUS_NOT_SUPPORTED 0x02
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| 111 | #define VBE_RETURN_STATUS_INVALID 0x03
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| 112 |
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| 113 | #endif
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