--- /dev/null
+#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, DL, CX, 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;
+
+// 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
+
+// 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_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_TOTAL_VIDEO_MEMORY_MB 4
+
+ #define VBE_DISPI_BANK_ADDRESS 0xA0000
+ #define VBE_DISPI_BANK_SIZE_KB 64
+
+ #define VBE_DISPI_MAX_XRES 1024
+ #define VBE_DISPI_MAX_YRES 768
+
+ #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_ID0 0xB0C0
+ #define VBE_DISPI_ID1 0xB0C1
+ #define VBE_DISPI_ID2 0xB0C2
+ #define VBE_DISPI_ID3 0xB0C3
+
+ #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
+
+
+#define VBE_TOTAL_VIDEO_MEMORY_DIV_64K (VBE_DISPI_TOTAL_VIDEO_MEMORY_MB*1024/64)
+
+
+#endif
