273 lines
5.2 KiB
C
273 lines
5.2 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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vesa.h
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Abstract:
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This module implements VESA support.
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Author:
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Erick Smith (ericks) Sep. 2000
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Environment:
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kernel mode only
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Revision History:
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--*/
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#define VBE_GET_CONTROLLER_INFO 0x4F00
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#define VBE_GET_MODE_INFO 0x4F01
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#define VBE_SET_MODE 0x4F02
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#define VBE_GET_MODE 0x4F03
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#define VBE_SAVE_RESTORE_STATE 0x4F04
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#define VBE_WINDOW_CONTROL 0x4F05
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#define VBE_SCANLINE 0x4F06
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#define VBE_DISPLAY_START 0x4F07
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#define VBE_PALLET_FORMAT 0x4F08
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#define VBE_PALLET_DATA 0x4F09
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#define VBE_PROTECTED_MODE 0x4F0A
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#define VBE_PIXEL_CLOCK 0x4F0B
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#define VESA_STATUS_SUCCESS 0x004F
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//
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// VESA SuperVGA structures
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//
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#pragma pack(1)
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typedef struct _VGA_INFO_BLOCK
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{
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ULONG VesaSignature;
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USHORT VbeVersion;
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ULONG OemStringPtr;
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ULONG Capabilities;
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ULONG VideoModePtr;
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USHORT TotalMemory;
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//
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// VBE 2.0
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//
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USHORT OemSoftwareRev;
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ULONG OemVendorNamePtr;
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ULONG OemProductNamePtr;
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ULONG OemProductRevPtr;
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UCHAR Reserved[222];
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UCHAR OemData[256];
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} VGA_INFO_BLOCK, *PVGA_INFO_BLOCK;
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typedef struct _MODE_INFO_BLOCK
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{
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USHORT ModeAttributes;
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UCHAR WinAAttributes;
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UCHAR WinBAttributes;
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USHORT WinGranularity;
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USHORT WinSize;
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USHORT WinASegment;
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USHORT WinBSegment;
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ULONG WinFuncPtr;
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USHORT BytesPerScanLine;
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USHORT XResolution;
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USHORT YResolution;
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UCHAR XCharSize;
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UCHAR YCharSize;
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UCHAR NumberOfPlanes;
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UCHAR BitsPerPixel;
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UCHAR NumberOfBanks;
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UCHAR MemoryModel;
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UCHAR BankSize;
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UCHAR NumberOfImagePages;
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UCHAR Reserved1;
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UCHAR RedMaskSize;
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UCHAR RedFieldPosition;
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UCHAR GreenMaskSize;
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UCHAR GreenFieldPosition;
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UCHAR BlueMaskSize;
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UCHAR BlueFieldPosition;
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UCHAR RsvdMaskSize;
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UCHAR RsvdFieldPosition;
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UCHAR DirectColorModeInfo;
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//
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// VBE 2.0
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//
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ULONG PhysBasePtr;
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ULONG Reserved2;
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USHORT Reserved3;
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//
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// VBE 3.0
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//
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USHORT LinBytesPerScanLine;
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UCHAR BnkNumberOfImagePages;
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UCHAR LinNumberOfImagePages;
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UCHAR LinRedMaskSize;
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UCHAR LinRedFieldPosition;
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UCHAR LinGreenMaskSize;
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UCHAR LinGreenFieldPosition;
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UCHAR LinBlueMaskSize;
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UCHAR LinBlueFieldPosition;
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UCHAR LinRsvdMaskSize;
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UCHAR LinRsvdFieldPosition;
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ULONG MaxPixelClock;
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UCHAR Reserved4[190];
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} MODE_INFO_BLOCK, *PMODE_INFO_BLOCK;
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typedef struct _PALETTE_ENTRY
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{
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UCHAR Blue;
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UCHAR Green;
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UCHAR Red;
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UCHAR Alignment;
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} PALETTE_ENTRY, *PPALETTE_ENTRY;
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#pragma pack()
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typedef struct _VESA_INFO
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{
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USHORT ModeNumber;
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ULONG FrameBufferSize;
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MODE_INFO_BLOCK ModeInfoBlock;
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ULONG HardwareStateSize;
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UCHAR HardwareState[];
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} VESA_INFO, *PVESA_INFO;
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#define VDM_TRANSFER_SEGMENT 0x2000
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#define VDM_TRANSFER_OFFSET 0x0000
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#define VBE_CAP_DAC_WIDTH_8BPP 0x01
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#define VBE_CAP_NOT_VGA 0x02
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#define VBE_CAP_VSYNC_ON_PALETTE_UPDATE 0x04
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#define VBE_CAP_STEREO_SIGNAL 0x08
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#define VBE_CAP_STEREO_EVC_CONNECTOR 0x10
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#define SEG(x) ((x) >> 16)
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#define OFF(x) ((x) & 0xffff)
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#define TRANSFER_ADDRESS ((VDM_TRANSFER_SEGMENT << 4) + VDM_TRANSFER_OFFSET)
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#define INFOBLOCK_OFFSET(x) ((SEG((x)) << 4) + OFF((x)) - TRANSFER_ADDRESS)
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#define IS_LINEAR_MODE(x) ((x)->bitsPerPlane >= 8)
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VOID
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InitializeModeTable(
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PVOID HwDeviceExtension
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);
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BOOLEAN
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ValidateVbeInfo(
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PHW_DEVICE_EXTENSION hwDeviceExtension,
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PVGA_INFO_BLOCK InfoBlock
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);
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VOID
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UpdateRegistry(
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PHW_DEVICE_EXTENSION hwDeviceExtension,
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PWSTR ValueName,
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PUCHAR Value
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);
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ULONG
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GetVideoMemoryBaseAddress(
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PHW_DEVICE_EXTENSION hwDeviceExtension,
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PVIDEOMODE pRequestedMode
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);
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VP_STATUS
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VBESetMode(
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PHW_DEVICE_EXTENSION HwDeviceExtension,
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USHORT VesaModeNumber
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);
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USHORT
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VBEGetMode(
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PHW_DEVICE_EXTENSION HwDeviceExtension
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);
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VP_STATUS
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VBEGetModeInfo(
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PHW_DEVICE_EXTENSION hwDeviceExtension,
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USHORT ModeNumber,
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PMODE_INFO_BLOCK ModeInfoBlock
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);
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ULONG
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VBESaveState(
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PHW_DEVICE_EXTENSION HwDeviceExtension,
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PCHAR StateBuffer
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);
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VP_STATUS
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VBERestoreState(
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PHW_DEVICE_EXTENSION HwDeviceExtension,
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PCHAR StateBuffer,
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ULONG Size
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);
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VP_STATUS
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VBESetDisplayWindow(
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PHW_DEVICE_EXTENSION hwDeviceExtension,
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UCHAR WindowSelect,
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USHORT WindowNumber
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);
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USHORT
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VBEGetDisplayWindow(
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PHW_DEVICE_EXTENSION hwDeviceExtension,
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UCHAR WindowSelect
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);
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USHORT
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VBEGetScanLineLength(
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PHW_DEVICE_EXTENSION HwDeviceExtension
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);
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VP_STATUS
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VesaSaveHardwareState(
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PHW_DEVICE_EXTENSION HwDeviceExtension,
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PVIDEO_HARDWARE_STATE HardwareState,
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ULONG HardwareStateSize,
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USHORT ModeNumber
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);
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PCHAR
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SaveFrameBuffer(
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PHW_DEVICE_EXTENSION hwDeviceExtension,
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PVESA_INFO pVesaInfo
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);
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BOOLEAN
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IsSavedModeVesa(
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PVIDEO_HARDWARE_STATE HardwareState
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);
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VP_STATUS
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VesaRestoreHardwareState(
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PHW_DEVICE_EXTENSION HwDeviceExtension,
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PVIDEO_HARDWARE_STATE HardwareState,
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ULONG HardwareStateSize
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);
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ULONG
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RestoreFrameBuffer(
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PHW_DEVICE_EXTENSION hwDeviceExtension,
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PVESA_INFO pVesaInfo,
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PCHAR FrameBufferData
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);
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