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vbe.h
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vbe.h
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#ifndef vbe_h_included
#define vbe_h_included
#include "vgabios.h"
// DISPI helper function
void dispi_set_enable(enable);
/** VBE int10 API
*
* See the function descriptions in vbe.c for more information
*/
Boolean vbe_has_vbe_display();
void vbe_biosfn_return_controller_information(AX, ES, DI);
void vbe_biosfn_return_mode_information(AX, CX, ES, DI);
void vbe_biosfn_set_mode(AX, BX, ES, DI);
void vbe_biosfn_save_restore_state(AX, CX, DX, ES, BX);
void vbe_biosfn_set_get_palette_data(AX);
void vbe_biosfn_return_protected_mode_interface(AX);
// The official VBE Information Block
typedef struct VbeInfoBlock
{
Bit8u VbeSignature[4];
Bit16u VbeVersion;
Bit16u OemStringPtr_Off;
Bit16u OemStringPtr_Seg;
Bit8u Capabilities[4];
Bit16u VideoModePtr_Off;
Bit16u VideoModePtr_Seg;
Bit16u TotalMemory;
Bit16u OemSoftwareRev;
Bit16u OemVendorNamePtr_Off;
Bit16u OemVendorNamePtr_Seg;
Bit16u OemProductNamePtr_Off;
Bit16u OemProductNamePtr_Seg;
Bit16u OemProductRevPtr_Off;
Bit16u OemProductRevPtr_Seg;
Bit16u Reserved[111]; // used for dynamicly generated mode list
Bit8u OemData[256];
} VbeInfoBlock;
// This one is for compactly storing a static list of mode info blocks
// this saves us 189 bytes per block
typedef struct ModeInfoBlockCompact
{
// Mandatory information for all VBE revisions
Bit16u ModeAttributes;
Bit8u WinAAttributes;
Bit8u WinBAttributes;
Bit16u WinGranularity;
Bit16u WinSize;
Bit16u WinASegment;
Bit16u WinBSegment;
Bit32u WinFuncPtr;
Bit16u BytesPerScanLine;
// Mandatory information for VBE 1.2 and above
Bit16u XResolution;
Bit16u YResolution;
Bit8u XCharSize;
Bit8u YCharSize;
Bit8u NumberOfPlanes;
Bit8u BitsPerPixel;
Bit8u NumberOfBanks;
Bit8u MemoryModel;
Bit8u BankSize;
Bit8u NumberOfImagePages;
Bit8u Reserved_page;
// Direct Color fields (required for direct/6 and YUV/7 memory models)
Bit8u RedMaskSize;
Bit8u RedFieldPosition;
Bit8u GreenMaskSize;
Bit8u GreenFieldPosition;
Bit8u BlueMaskSize;
Bit8u BlueFieldPosition;
Bit8u RsvdMaskSize;
Bit8u RsvdFieldPosition;
Bit8u DirectColorModeInfo;
// Mandatory information for VBE 2.0 and above
Bit32u PhysBasePtr;
Bit32u OffScreenMemOffset;
Bit16u OffScreenMemSize;
// Mandatory information for VBE 3.0 and above
Bit16u LinBytesPerScanLine;
Bit8u BnkNumberOfPages;
Bit8u LinNumberOfPages;
Bit8u LinRedMaskSize;
Bit8u LinRedFieldPosition;
Bit8u LinGreenMaskSize;
Bit8u LinGreenFieldPosition;
Bit8u LinBlueMaskSize;
Bit8u LinBlueFieldPosition;
Bit8u LinRsvdMaskSize;
Bit8u LinRsvdFieldPosition;
Bit32u MaxPixelClock;
// Bit8u Reserved[189]; // DO NOT PUT THIS IN HERE because of Compact Mode Info storage in bios
} ModeInfoBlockCompact;
typedef struct ModeInfoBlock
{
// Mandatory information for all VBE revisions
Bit16u ModeAttributes;
Bit8u WinAAttributes;
Bit8u WinBAttributes;
Bit16u WinGranularity;
Bit16u WinSize;
Bit16u WinASegment;
Bit16u WinBSegment;
Bit32u WinFuncPtr;
Bit16u BytesPerScanLine;
// Mandatory information for VBE 1.2 and above
Bit16u XResolution;
Bit16u YResolution;
Bit8u XCharSize;
Bit8u YCharSize;
Bit8u NumberOfPlanes;
Bit8u BitsPerPixel;
Bit8u NumberOfBanks;
Bit8u MemoryModel;
Bit8u BankSize;
Bit8u NumberOfImagePages;
Bit8u Reserved_page;
// Direct Color fields (required for direct/6 and YUV/7 memory models)
Bit8u RedMaskSize;
Bit8u RedFieldPosition;
Bit8u GreenMaskSize;
Bit8u GreenFieldPosition;
Bit8u BlueMaskSize;
Bit8u BlueFieldPosition;
Bit8u RsvdMaskSize;
Bit8u RsvdFieldPosition;
Bit8u DirectColorModeInfo;
// Mandatory information for VBE 2.0 and above
Bit32u PhysBasePtr;
Bit32u OffScreenMemOffset;
Bit16u OffScreenMemSize;
// Mandatory information for VBE 3.0 and above
Bit16u LinBytesPerScanLine;
Bit8u BnkNumberOfPages;
Bit8u LinNumberOfPages;
Bit8u LinRedMaskSize;
Bit8u LinRedFieldPosition;
Bit8u LinGreenMaskSize;
Bit8u LinGreenFieldPosition;
Bit8u LinBlueMaskSize;
Bit8u LinBlueFieldPosition;
Bit8u LinRsvdMaskSize;
Bit8u LinRsvdFieldPosition;
Bit32u MaxPixelClock;
Bit8u Reserved[189];
} ModeInfoBlock;
typedef struct ModeInfoListItem
{
Bit16u mode;
ModeInfoBlockCompact info;
} ModeInfoListItem;
// VBE Return Status Info
// AL
#define VBE_RETURN_STATUS_SUPPORTED 0x4F
#define VBE_RETURN_STATUS_UNSUPPORTED 0x00
// AH
#define VBE_RETURN_STATUS_SUCCESSFULL 0x00
#define VBE_RETURN_STATUS_FAILED 0x01
#define VBE_RETURN_STATUS_NOT_SUPPORTED 0x02
#define VBE_RETURN_STATUS_INVALID 0x03
// VBE Mode Numbers
#define VBE_MODE_VESA_DEFINED 0x0100
#define VBE_MODE_REFRESH_RATE_USE_CRTC 0x0800
#define VBE_MODE_LINEAR_FRAME_BUFFER 0x4000
#define VBE_MODE_PRESERVE_DISPLAY_MEMORY 0x8000
// VBE GFX Mode Number
#define VBE_VESA_MODE_640X400X8 0x100
#define VBE_VESA_MODE_640X480X8 0x101
#define VBE_VESA_MODE_800X600X4 0x102
#define VBE_VESA_MODE_800X600X8 0x103
#define VBE_VESA_MODE_1024X768X4 0x104
#define VBE_VESA_MODE_1024X768X8 0x105
#define VBE_VESA_MODE_1280X1024X4 0x106
#define VBE_VESA_MODE_1280X1024X8 0x107
#define VBE_VESA_MODE_320X200X1555 0x10D
#define VBE_VESA_MODE_320X200X565 0x10E
#define VBE_VESA_MODE_320X200X888 0x10F
#define VBE_VESA_MODE_640X480X1555 0x110
#define VBE_VESA_MODE_640X480X565 0x111
#define VBE_VESA_MODE_640X480X888 0x112
#define VBE_VESA_MODE_800X600X1555 0x113
#define VBE_VESA_MODE_800X600X565 0x114
#define VBE_VESA_MODE_800X600X888 0x115
#define VBE_VESA_MODE_1024X768X1555 0x116
#define VBE_VESA_MODE_1024X768X565 0x117
#define VBE_VESA_MODE_1024X768X888 0x118
#define VBE_VESA_MODE_1280X1024X1555 0x119
#define VBE_VESA_MODE_1280X1024X565 0x11A
#define VBE_VESA_MODE_1280X1024X888 0x11B
#define VBE_VESA_MODE_1600X1200X8 0x11C
#define VBE_VESA_MODE_1600X1200X1555 0x11D
#define VBE_VESA_MODE_1600X1200X565 0x11E
#define VBE_VESA_MODE_1600X1200X888 0x11F
// BOCHS/PLEX86 'own' mode numbers
#define VBE_OWN_MODE_320X200X8888 0x140
#define VBE_OWN_MODE_640X400X8888 0x141
#define VBE_OWN_MODE_640X480X8888 0x142
#define VBE_OWN_MODE_800X600X8888 0x143
#define VBE_OWN_MODE_1024X768X8888 0x144
#define VBE_OWN_MODE_1280X1024X8888 0x145
#define VBE_OWN_MODE_320X200X8 0x146
#define VBE_OWN_MODE_1600X1200X8888 0x147
#define VBE_OWN_MODE_1152X864X8 0x148
#define VBE_OWN_MODE_1152X864X1555 0x149
#define VBE_OWN_MODE_1152X864X565 0x14a
#define VBE_OWN_MODE_1152X864X888 0x14b
#define VBE_OWN_MODE_1152X864X8888 0x14c
#define VBE_VESA_MODE_END_OF_LIST 0xFFFF
// Capabilities
#define VBE_CAPABILITY_8BIT_DAC 0x0001
#define VBE_CAPABILITY_NOT_VGA_COMPATIBLE 0x0002
#define VBE_CAPABILITY_RAMDAC_USE_BLANK_BIT 0x0004
#define VBE_CAPABILITY_STEREOSCOPIC_SUPPORT 0x0008
#define VBE_CAPABILITY_STEREO_VIA_VESA_EVC 0x0010
// Mode Attributes
#define VBE_MODE_ATTRIBUTE_SUPPORTED 0x0001
#define VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE 0x0002
#define VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT 0x0004
#define VBE_MODE_ATTRIBUTE_COLOR_MODE 0x0008
#define VBE_MODE_ATTRIBUTE_GRAPHICS_MODE 0x0010
#define VBE_MODE_ATTRIBUTE_NOT_VGA_COMPATIBLE 0x0020
#define VBE_MODE_ATTRIBUTE_NO_VGA_COMPATIBLE_WINDOW 0x0040
#define VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE 0x0080
#define VBE_MODE_ATTRIBUTE_DOUBLE_SCAN_MODE 0x0100
#define VBE_MODE_ATTRIBUTE_INTERLACE_MODE 0x0200
#define VBE_MODE_ATTRIBUTE_HARDWARE_TRIPLE_BUFFER 0x0400
#define VBE_MODE_ATTRIBUTE_HARDWARE_STEREOSCOPIC_DISPLAY 0x0800
#define VBE_MODE_ATTRIBUTE_DUAL_DISPLAY_START_ADDRESS 0x1000
#define VBE_MODE_ATTTRIBUTE_LFB_ONLY ( VBE_MODE_ATTRIBUTE_NO_VGA_COMPATIBLE_WINDOW | VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE )
// Window attributes
#define VBE_WINDOW_ATTRIBUTE_RELOCATABLE 0x01
#define VBE_WINDOW_ATTRIBUTE_READABLE 0x02
#define VBE_WINDOW_ATTRIBUTE_WRITEABLE 0x04
// Memory model
#define VBE_MEMORYMODEL_TEXT_MODE 0x00
#define VBE_MEMORYMODEL_CGA_GRAPHICS 0x01
#define VBE_MEMORYMODEL_HERCULES_GRAPHICS 0x02
#define VBE_MEMORYMODEL_PLANAR 0x03
#define VBE_MEMORYMODEL_PACKED_PIXEL 0x04
#define VBE_MEMORYMODEL_NON_CHAIN_4_256 0x05
#define VBE_MEMORYMODEL_DIRECT_COLOR 0x06
#define VBE_MEMORYMODEL_YUV 0x07
// DirectColorModeInfo
#define VBE_DIRECTCOLOR_COLOR_RAMP_PROGRAMMABLE 0x01
#define VBE_DIRECTCOLOR_RESERVED_BITS_AVAILABLE 0x02
// GUEST <-> HOST Communication API
// FIXME: either dynamicly ask host for this or put somewhere high in physical memory
// like 0xE0000000
#define VBE_DISPI_BANK_ADDRESS 0xA0000
#define VBE_DISPI_BANK_SIZE_KB 64
#define VBE_DISPI_MAX_XRES 2560
#define VBE_DISPI_MAX_YRES 1600
#define VBE_DISPI_IOPORT_INDEX 0x01CE
#define VBE_DISPI_IOPORT_DATA 0x01CF
#define VBE_DISPI_INDEX_ID 0x0
#define VBE_DISPI_INDEX_XRES 0x1
#define VBE_DISPI_INDEX_YRES 0x2
#define VBE_DISPI_INDEX_BPP 0x3
#define VBE_DISPI_INDEX_ENABLE 0x4
#define VBE_DISPI_INDEX_BANK 0x5
#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
#define VBE_DISPI_INDEX_X_OFFSET 0x8
#define VBE_DISPI_INDEX_Y_OFFSET 0x9
#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
#define VBE_DISPI_ID0 0xB0C0
#define VBE_DISPI_ID1 0xB0C1
#define VBE_DISPI_ID2 0xB0C2
#define VBE_DISPI_ID3 0xB0C3
#define VBE_DISPI_ID4 0xB0C4
#define VBE_DISPI_ID5 0xB0C5
#define VBE_DISPI_DISABLED 0x00
#define VBE_DISPI_ENABLED 0x01
#define VBE_DISPI_GETCAPS 0x02
#define VBE_DISPI_8BIT_DAC 0x20
#define VBE_DISPI_LFB_ENABLED 0x40
#define VBE_DISPI_NOCLEARMEM 0x80
#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
#endif