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https://github.com/xen-project/xen.git
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Keir Fraser
a390e6128b
* enables linear framebuffer and VBE 3.0 extensions. * add a number of new resolutions, up to 2560x1600, and including * widescreen modes common to modern displays. * Introduce configurable video ram size through the "videoram" config * file option, shrinking default video ram used to 4 Megs (thus * eliminating 4 wasted megs/VM that have been the case until now), but * allowing users to specify up to 16 Megs of vram, to support the * extreme high resolutions such as 2560x1600x32. Signed-off-by: Trolle Selander <trolle.selander@eu.citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
316 lines
11 KiB
C
316 lines
11 KiB
C
#ifndef vbe_h_included
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#define vbe_h_included
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#include "vgabios.h"
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// DISPI helper function
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void dispi_set_enable(enable);
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/** VBE int10 API
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*
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* See the function descriptions in vbe.c for more information
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*/
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Boolean vbe_has_vbe_display();
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void vbe_biosfn_return_controller_information(AX, ES, DI);
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void vbe_biosfn_return_mode_information(AX, CX, ES, DI);
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void vbe_biosfn_set_mode(AX, BX, ES, DI);
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void vbe_biosfn_save_restore_state(AX, CX, DX, ES, BX);
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void vbe_biosfn_set_get_palette_data(AX);
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void vbe_biosfn_return_protected_mode_interface(AX);
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// The official VBE Information Block
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typedef struct VbeInfoBlock
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{
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Bit8u VbeSignature[4];
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Bit16u VbeVersion;
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Bit16u OemStringPtr_Off;
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Bit16u OemStringPtr_Seg;
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Bit8u Capabilities[4];
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Bit16u VideoModePtr_Off;
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Bit16u VideoModePtr_Seg;
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Bit16u TotalMemory;
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Bit16u OemSoftwareRev;
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Bit16u OemVendorNamePtr_Off;
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Bit16u OemVendorNamePtr_Seg;
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Bit16u OemProductNamePtr_Off;
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Bit16u OemProductNamePtr_Seg;
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Bit16u OemProductRevPtr_Off;
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Bit16u OemProductRevPtr_Seg;
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Bit16u Reserved[111]; // used for dynamicly generated mode list
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Bit8u OemData[256];
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} VbeInfoBlock;
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// This one is for compactly storing a static list of mode info blocks
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// this saves us 189 bytes per block
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typedef struct ModeInfoBlockCompact
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{
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// Mandatory information for all VBE revisions
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Bit16u ModeAttributes;
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Bit8u WinAAttributes;
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Bit8u WinBAttributes;
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Bit16u WinGranularity;
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Bit16u WinSize;
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Bit16u WinASegment;
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Bit16u WinBSegment;
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Bit32u WinFuncPtr;
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Bit16u BytesPerScanLine;
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// Mandatory information for VBE 1.2 and above
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Bit16u XResolution;
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Bit16u YResolution;
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Bit8u XCharSize;
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Bit8u YCharSize;
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Bit8u NumberOfPlanes;
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Bit8u BitsPerPixel;
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Bit8u NumberOfBanks;
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Bit8u MemoryModel;
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Bit8u BankSize;
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Bit8u NumberOfImagePages;
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Bit8u Reserved_page;
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// Direct Color fields (required for direct/6 and YUV/7 memory models)
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Bit8u RedMaskSize;
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Bit8u RedFieldPosition;
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Bit8u GreenMaskSize;
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Bit8u GreenFieldPosition;
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Bit8u BlueMaskSize;
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Bit8u BlueFieldPosition;
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Bit8u RsvdMaskSize;
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Bit8u RsvdFieldPosition;
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Bit8u DirectColorModeInfo;
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// Mandatory information for VBE 2.0 and above
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Bit32u PhysBasePtr;
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Bit32u OffScreenMemOffset;
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Bit16u OffScreenMemSize;
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// Mandatory information for VBE 3.0 and above
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Bit16u LinBytesPerScanLine;
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Bit8u BnkNumberOfPages;
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Bit8u LinNumberOfPages;
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Bit8u LinRedMaskSize;
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Bit8u LinRedFieldPosition;
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Bit8u LinGreenMaskSize;
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Bit8u LinGreenFieldPosition;
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Bit8u LinBlueMaskSize;
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Bit8u LinBlueFieldPosition;
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Bit8u LinRsvdMaskSize;
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Bit8u LinRsvdFieldPosition;
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Bit32u MaxPixelClock;
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// Bit8u Reserved[189]; // DO NOT PUT THIS IN HERE because of Compact Mode Info storage in bios
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} ModeInfoBlockCompact;
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typedef struct ModeInfoBlock
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{
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// Mandatory information for all VBE revisions
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Bit16u ModeAttributes;
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Bit8u WinAAttributes;
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Bit8u WinBAttributes;
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Bit16u WinGranularity;
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Bit16u WinSize;
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Bit16u WinASegment;
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Bit16u WinBSegment;
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Bit32u WinFuncPtr;
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Bit16u BytesPerScanLine;
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// Mandatory information for VBE 1.2 and above
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Bit16u XResolution;
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Bit16u YResolution;
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Bit8u XCharSize;
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Bit8u YCharSize;
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Bit8u NumberOfPlanes;
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Bit8u BitsPerPixel;
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Bit8u NumberOfBanks;
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Bit8u MemoryModel;
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Bit8u BankSize;
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Bit8u NumberOfImagePages;
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Bit8u Reserved_page;
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// Direct Color fields (required for direct/6 and YUV/7 memory models)
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Bit8u RedMaskSize;
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Bit8u RedFieldPosition;
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Bit8u GreenMaskSize;
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Bit8u GreenFieldPosition;
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Bit8u BlueMaskSize;
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Bit8u BlueFieldPosition;
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Bit8u RsvdMaskSize;
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Bit8u RsvdFieldPosition;
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Bit8u DirectColorModeInfo;
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// Mandatory information for VBE 2.0 and above
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Bit32u PhysBasePtr;
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Bit32u OffScreenMemOffset;
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Bit16u OffScreenMemSize;
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// Mandatory information for VBE 3.0 and above
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Bit16u LinBytesPerScanLine;
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Bit8u BnkNumberOfPages;
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Bit8u LinNumberOfPages;
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Bit8u LinRedMaskSize;
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Bit8u LinRedFieldPosition;
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Bit8u LinGreenMaskSize;
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Bit8u LinGreenFieldPosition;
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Bit8u LinBlueMaskSize;
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Bit8u LinBlueFieldPosition;
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Bit8u LinRsvdMaskSize;
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Bit8u LinRsvdFieldPosition;
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Bit32u MaxPixelClock;
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Bit8u Reserved[189];
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} ModeInfoBlock;
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typedef struct ModeInfoListItem
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{
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Bit16u mode;
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ModeInfoBlockCompact info;
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} ModeInfoListItem;
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// VBE Return Status Info
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// AL
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#define VBE_RETURN_STATUS_SUPPORTED 0x4F
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#define VBE_RETURN_STATUS_UNSUPPORTED 0x00
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// AH
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#define VBE_RETURN_STATUS_SUCCESSFULL 0x00
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#define VBE_RETURN_STATUS_FAILED 0x01
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#define VBE_RETURN_STATUS_NOT_SUPPORTED 0x02
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#define VBE_RETURN_STATUS_INVALID 0x03
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// VBE Mode Numbers
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#define VBE_MODE_VESA_DEFINED 0x0100
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#define VBE_MODE_REFRESH_RATE_USE_CRTC 0x0800
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#define VBE_MODE_LINEAR_FRAME_BUFFER 0x4000
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#define VBE_MODE_PRESERVE_DISPLAY_MEMORY 0x8000
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// VBE GFX Mode Number
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#define VBE_VESA_MODE_640X400X8 0x100
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#define VBE_VESA_MODE_640X480X8 0x101
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#define VBE_VESA_MODE_800X600X4 0x102
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#define VBE_VESA_MODE_800X600X8 0x103
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#define VBE_VESA_MODE_1024X768X4 0x104
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#define VBE_VESA_MODE_1024X768X8 0x105
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#define VBE_VESA_MODE_1280X1024X4 0x106
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#define VBE_VESA_MODE_1280X1024X8 0x107
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#define VBE_VESA_MODE_320X200X1555 0x10D
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#define VBE_VESA_MODE_320X200X565 0x10E
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#define VBE_VESA_MODE_320X200X888 0x10F
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#define VBE_VESA_MODE_640X480X1555 0x110
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#define VBE_VESA_MODE_640X480X565 0x111
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#define VBE_VESA_MODE_640X480X888 0x112
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#define VBE_VESA_MODE_800X600X1555 0x113
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#define VBE_VESA_MODE_800X600X565 0x114
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#define VBE_VESA_MODE_800X600X888 0x115
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#define VBE_VESA_MODE_1024X768X1555 0x116
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#define VBE_VESA_MODE_1024X768X565 0x117
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#define VBE_VESA_MODE_1024X768X888 0x118
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#define VBE_VESA_MODE_1280X1024X1555 0x119
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#define VBE_VESA_MODE_1280X1024X565 0x11A
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#define VBE_VESA_MODE_1280X1024X888 0x11B
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#define VBE_VESA_MODE_1600X1200X8 0x11C
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#define VBE_VESA_MODE_1600X1200X1555 0x11D
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#define VBE_VESA_MODE_1600X1200X565 0x11E
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#define VBE_VESA_MODE_1600X1200X888 0x11F
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// BOCHS/PLEX86 'own' mode numbers
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#define VBE_OWN_MODE_320X200X8888 0x140
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#define VBE_OWN_MODE_640X400X8888 0x141
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#define VBE_OWN_MODE_640X480X8888 0x142
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#define VBE_OWN_MODE_800X600X8888 0x143
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#define VBE_OWN_MODE_1024X768X8888 0x144
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#define VBE_OWN_MODE_1280X1024X8888 0x145
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#define VBE_OWN_MODE_320X200X8 0x146
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#define VBE_OWN_MODE_1600X1200X8888 0x147
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#define VBE_OWN_MODE_1152X864X8 0x148
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#define VBE_OWN_MODE_1152X864X1555 0x149
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#define VBE_OWN_MODE_1152X864X565 0x14a
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#define VBE_OWN_MODE_1152X864X888 0x14b
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#define VBE_OWN_MODE_1152X864X8888 0x14c
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#define VBE_VESA_MODE_END_OF_LIST 0xFFFF
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// Capabilities
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#define VBE_CAPABILITY_8BIT_DAC 0x0001
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#define VBE_CAPABILITY_NOT_VGA_COMPATIBLE 0x0002
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#define VBE_CAPABILITY_RAMDAC_USE_BLANK_BIT 0x0004
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#define VBE_CAPABILITY_STEREOSCOPIC_SUPPORT 0x0008
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#define VBE_CAPABILITY_STEREO_VIA_VESA_EVC 0x0010
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// Mode Attributes
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#define VBE_MODE_ATTRIBUTE_SUPPORTED 0x0001
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#define VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE 0x0002
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#define VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT 0x0004
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#define VBE_MODE_ATTRIBUTE_COLOR_MODE 0x0008
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#define VBE_MODE_ATTRIBUTE_GRAPHICS_MODE 0x0010
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#define VBE_MODE_ATTRIBUTE_NOT_VGA_COMPATIBLE 0x0020
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#define VBE_MODE_ATTRIBUTE_NO_VGA_COMPATIBLE_WINDOW 0x0040
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#define VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE 0x0080
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#define VBE_MODE_ATTRIBUTE_DOUBLE_SCAN_MODE 0x0100
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#define VBE_MODE_ATTRIBUTE_INTERLACE_MODE 0x0200
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#define VBE_MODE_ATTRIBUTE_HARDWARE_TRIPLE_BUFFER 0x0400
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#define VBE_MODE_ATTRIBUTE_HARDWARE_STEREOSCOPIC_DISPLAY 0x0800
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#define VBE_MODE_ATTRIBUTE_DUAL_DISPLAY_START_ADDRESS 0x1000
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#define VBE_MODE_ATTTRIBUTE_LFB_ONLY ( VBE_MODE_ATTRIBUTE_NO_VGA_COMPATIBLE_WINDOW | VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE )
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// Window attributes
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#define VBE_WINDOW_ATTRIBUTE_RELOCATABLE 0x01
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#define VBE_WINDOW_ATTRIBUTE_READABLE 0x02
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#define VBE_WINDOW_ATTRIBUTE_WRITEABLE 0x04
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// Memory model
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#define VBE_MEMORYMODEL_TEXT_MODE 0x00
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#define VBE_MEMORYMODEL_CGA_GRAPHICS 0x01
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#define VBE_MEMORYMODEL_HERCULES_GRAPHICS 0x02
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#define VBE_MEMORYMODEL_PLANAR 0x03
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#define VBE_MEMORYMODEL_PACKED_PIXEL 0x04
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#define VBE_MEMORYMODEL_NON_CHAIN_4_256 0x05
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#define VBE_MEMORYMODEL_DIRECT_COLOR 0x06
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#define VBE_MEMORYMODEL_YUV 0x07
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// DirectColorModeInfo
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#define VBE_DIRECTCOLOR_COLOR_RAMP_PROGRAMMABLE 0x01
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#define VBE_DIRECTCOLOR_RESERVED_BITS_AVAILABLE 0x02
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// GUEST <-> HOST Communication API
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// FIXME: either dynamicly ask host for this or put somewhere high in physical memory
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// like 0xE0000000
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#define VBE_DISPI_BANK_ADDRESS 0xA0000
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#define VBE_DISPI_BANK_SIZE_KB 64
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#define VBE_DISPI_MAX_XRES 2560
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#define VBE_DISPI_MAX_YRES 1600
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#define VBE_DISPI_IOPORT_INDEX 0x01CE
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#define VBE_DISPI_IOPORT_DATA 0x01CF
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#define VBE_DISPI_INDEX_ID 0x0
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#define VBE_DISPI_INDEX_XRES 0x1
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#define VBE_DISPI_INDEX_YRES 0x2
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#define VBE_DISPI_INDEX_BPP 0x3
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#define VBE_DISPI_INDEX_ENABLE 0x4
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#define VBE_DISPI_INDEX_BANK 0x5
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#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
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#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
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#define VBE_DISPI_INDEX_X_OFFSET 0x8
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#define VBE_DISPI_INDEX_Y_OFFSET 0x9
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#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
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#define VBE_DISPI_INDEX_LFB_ADDRESS_H 0xb
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#define VBE_DISPI_INDEX_LFB_ADDRESS_L 0xc
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#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
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#define VBE_DISPI_ID0 0xB0C0
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#define VBE_DISPI_ID1 0xB0C1
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#define VBE_DISPI_ID2 0xB0C2
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#define VBE_DISPI_ID3 0xB0C3
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#define VBE_DISPI_ID4 0xB0C4
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#define VBE_DISPI_DISABLED 0x00
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#define VBE_DISPI_ENABLED 0x01
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#define VBE_DISPI_GETCAPS 0x02
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#define VBE_DISPI_8BIT_DAC 0x20
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#define VBE_DISPI_LFB_ENABLED 0x40
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#define VBE_DISPI_NOCLEARMEM 0x80
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#endif
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