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Diffstat (limited to 'hw/xfree86/vbe/vbe.h')
| -rw-r--r-- | hw/xfree86/vbe/vbe.h | 328 |
1 files changed, 328 insertions, 0 deletions
diff --git a/hw/xfree86/vbe/vbe.h b/hw/xfree86/vbe/vbe.h new file mode 100644 index 000000000..5bca184f5 --- /dev/null +++ b/hw/xfree86/vbe/vbe.h @@ -0,0 +1,328 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/vbe/vbe.h,v 1.1 2003/02/17 17:06:45 dawes Exp $ */ + +/* + * XFree86 vbe module + * Copyright 2000 Egbert Eich + * + * The mode query/save/set/restore functions from the vesa driver + * have been moved here. + * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com) + * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br> + */ + +#ifndef _VBE_H +#define _VBE_H +#include "xf86int10.h" +#include "xf86DDC.h" + +typedef enum { + DDC_UNCHECKED, + DDC_NONE, + DDC_1, + DDC_2, + DDC_1_2 +} +ddc_lvl; + +typedef struct { + xf86Int10InfoPtr pInt10; + int version; + pointer memory; + int real_mode_base; + int num_pages; + Bool init_int10; + ddc_lvl ddc; + Bool ddc_blank; +} vbeInfoRec, *vbeInfoPtr; + +#define VBE_VERSION_MAJOR(x) *((CARD8*)(&x) + 1) +#define VBE_VERSION_MINOR(x) (CARD8)(x) + +vbeInfoPtr VBEInit(xf86Int10InfoPtr pInt, int entityIndex); +vbeInfoPtr VBEExtendedInit(xf86Int10InfoPtr pInt, int entityIndex, int Flags); +void vbeFree(vbeInfoPtr pVbe); +xf86MonPtr vbeDoEDID(vbeInfoPtr pVbe, pointer pDDCModule); + +#pragma pack(1) + +typedef struct vbeControllerInfoBlock { + CARD8 VbeSignature[4]; + CARD16 VbeVersion; + CARD32 OemStringPtr; + CARD8 Capabilities[4]; + CARD32 VideoModePtr; + CARD16 TotalMem; + CARD16 OemSoftwareRev; + CARD32 OemVendorNamePtr; + CARD32 OemProductNamePtr; + CARD32 OemProductRevPtr; + CARD8 Scratch[222]; + CARD8 OemData[256]; +} vbeControllerInfoRec, *vbeControllerInfoPtr; + +#pragma pack() + +#ifndef __GNUC__ +#define __attribute__(a) +#endif + +typedef struct _VbeInfoBlock VbeInfoBlock; +typedef struct _VbeModeInfoBlock VbeModeInfoBlock; +typedef struct _VbeCRTCInfoBlock VbeCRTCInfoBlock; + +/* + * INT 0 + */ + +struct _VbeInfoBlock { + /* VESA 1.2 fields */ + CARD8 VESASignature[4]; /* VESA */ + CARD16 VESAVersion; /* Higher byte major, lower byte minor */ + /*CARD32*/char *OEMStringPtr; /* Pointer to OEM string */ + CARD8 Capabilities[4]; /* Capabilities of the video environment */ + + /*CARD32*/CARD16 *VideoModePtr; /* pointer to supported Super VGA modes */ + + CARD16 TotalMemory; /* Number of 64kb memory blocks on board */ + /* if not VESA 2, 236 scratch bytes follow (256 bytes total size) */ + + /* VESA 2 fields */ + CARD16 OemSoftwareRev; /* VBE implementation Software revision */ + /*CARD32*/char *OemVendorNamePtr; /* Pointer to Vendor Name String */ + /*CARD32*/char *OemProductNamePtr; /* Pointer to Product Name String */ + /*CARD32*/char *OemProductRevPtr; /* Pointer to Product Revision String */ + CARD8 Reserved[222]; /* Reserved for VBE implementation */ + CARD8 OemData[256]; /* Data Area for OEM Strings */ +} __attribute__((packed)); + +/* Return Super VGA Information */ +VbeInfoBlock *VBEGetVBEInfo(vbeInfoPtr pVbe); +void VBEFreeVBEInfo(VbeInfoBlock *block); + +/* + * INT 1 + */ + +struct _VbeModeInfoBlock { + CARD16 ModeAttributes; /* mode attributes */ + CARD8 WinAAttributes; /* window A attributes */ + CARD8 WinBAttributes; /* window B attributes */ + CARD16 WinGranularity; /* window granularity */ + CARD16 WinSize; /* window size */ + CARD16 WinASegment; /* window A start segment */ + CARD16 WinBSegment; /* window B start segment */ + CARD32 WinFuncPtr; /* real mode pointer to window function */ + CARD16 BytesPerScanline; /* bytes per scanline */ + + /* Mandatory information for VBE 1.2 and above */ + CARD16 XResolution; /* horizontal resolution in pixels or characters */ + CARD16 YResolution; /* vertical resolution in pixels or characters */ + CARD8 XCharSize; /* character cell width in pixels */ + CARD8 YCharSize; /* character cell height in pixels */ + CARD8 NumberOfPlanes; /* number of memory planes */ + CARD8 BitsPerPixel; /* bits per pixel */ + CARD8 NumberOfBanks; /* number of banks */ + CARD8 MemoryModel; /* memory model type */ + CARD8 BankSize; /* bank size in KB */ + CARD8 NumberOfImages; /* number of images */ + CARD8 Reserved; /* 1 */ /* reserved for page function */ + + /* Direct color fields (required for direct/6 and YUV/7 memory models) */ + CARD8 RedMaskSize; /* size of direct color red mask in bits */ + CARD8 RedFieldPosition; /* bit position of lsb of red mask */ + CARD8 GreenMaskSize; /* size of direct color green mask in bits */ + CARD8 GreenFieldPosition; /* bit position of lsb of green mask */ + CARD8 BlueMaskSize; /* size of direct color blue mask in bits */ + CARD8 BlueFieldPosition; /* bit position of lsb of blue mask */ + CARD8 RsvdMaskSize; /* size of direct color reserved mask in bits */ + CARD8 RsvdFieldPosition; /* bit position of lsb of reserved mask */ + CARD8 DirectColorModeInfo; /* direct color mode attributes */ + + /* Mandatory information for VBE 2.0 and above */ + CARD32 PhysBasePtr; /* physical address for flat memory frame buffer */ + CARD32 Reserved32; /* 0 */ /* Reserved - always set to 0 */ + CARD16 Reserved16; /* 0 */ /* Reserved - always set to 0 */ + + /* Mandatory information for VBE 3.0 and above */ + CARD16 LinBytesPerScanLine; /* bytes per scan line for linear modes */ + CARD8 BnkNumberOfImagePages; /* number of images for banked modes */ + CARD8 LinNumberOfImagePages; /* number of images for linear modes */ + CARD8 LinRedMaskSize; /* size of direct color red mask (linear modes) */ + CARD8 LinRedFieldPosition; /* bit position of lsb of red mask (linear modes) */ + CARD8 LinGreenMaskSize; /* size of direct color green mask (linear modes) */ + CARD8 LinGreenFieldPosition; /* bit position of lsb of green mask (linear modes) */ + CARD8 LinBlueMaskSize; /* size of direct color blue mask (linear modes) */ + CARD8 LinBlueFieldPosition; /* bit position of lsb of blue mask (linear modes) */ + CARD8 LinRsvdMaskSize; /* size of direct color reserved mask (linear modes) */ + CARD8 LinRsvdFieldPosition; /* bit position of lsb of reserved mask (linear modes) */ + CARD32 MaxPixelClock; /* maximum pixel clock (in Hz) for graphics mode */ + CARD8 Reserved2[189]; /* remainder of VbeModeInfoBlock */ +} __attribute__((packed)); + +/* Return VBE Mode Information */ +VbeModeInfoBlock *VBEGetModeInfo(vbeInfoPtr pVbe, int mode); +void VBEFreeModeInfo(VbeModeInfoBlock *block); + +/* + * INT2 + */ + +#define CRTC_DBLSCAN (1<<0) +#define CRTC_INTERLACE (1<<1) +#define CRTC_NHSYNC (1<<2) +#define CRTC_NVSYNC (1<<3) + +struct _VbeCRTCInfoBlock { + CARD16 HorizontalTotal; /* Horizontal total in pixels */ + CARD16 HorizontalSyncStart; /* Horizontal sync start in pixels */ + CARD16 HorizontalSyncEnd; /* Horizontal sync end in pixels */ + CARD16 VerticalTotal; /* Vertical total in lines */ + CARD16 VerticalSyncStart; /* Vertical sync start in lines */ + CARD16 VerticalSyncEnd; /* Vertical sync end in lines */ + CARD8 Flags; /* Flags (Interlaced, Double Scan etc) */ + CARD32 PixelClock; /* Pixel clock in units of Hz */ + CARD16 RefreshRate; /* Refresh rate in units of 0.01 Hz */ + CARD8 Reserved[40]; /* remainder of ModeInfoBlock */ +} __attribute__((packed)); +/* VbeCRTCInfoBlock is in the VESA 3.0 specs */ + +Bool VBESetVBEMode(vbeInfoPtr pVbe, int mode, VbeCRTCInfoBlock *crtc); + +/* + * INT 3 + */ + +Bool VBEGetVBEMode(vbeInfoPtr pVbe, int *mode); + +/* + * INT 4 + */ + +/* Save/Restore Super VGA video state */ +/* function values are (values stored in VESAPtr): + * 0 := query & allocate amount of memory to save state + * 1 := save state + * 2 := restore state + * + * function 0 called automatically if function 1 called without + * a previous call to function 0. + */ + +typedef enum { + MODE_QUERY, + MODE_SAVE, + MODE_RESTORE +} vbeSaveRestoreFunction; + +Bool +VBESaveRestore(vbeInfoPtr pVbe, vbeSaveRestoreFunction fuction, + pointer *memory, int *size, int *real_mode_pages); + +/* + * INT 5 + */ + +Bool +VBEBankSwitch(vbeInfoPtr pVbe, unsigned int iBank, int window); + +/* + * INT 6 + */ + +typedef enum { + SCANWID_SET, + SCANWID_GET, + SCANWID_SET_BYTES, + SCANWID_GET_MAX +} vbeScanwidthCommand; + +#define VBESetLogicalScanline(pVbe, width) \ + VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET, \ + width, NULL, NULL, NULL) +#define VBESetLogicalScanlineBytes(pVbe, width) \ + VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET_BYTES, width, \ + NULL, NULL, NULL) +#define VBEGetLogicalScanline(pVbe, pixels, bytes, max) \ + VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET, 0, \ + pixels, bytes, max) +#define VBEGetMaxLogicalScanline(pVbe, pixels, bytes, max) \ + VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET_MAX, \ + NULL, pixels, bytes, max) +Bool VBESetGetLogicalScanlineLength(vbeInfoPtr pVbe, + vbeScanwidthCommand command, int width, + int *pixels, int *bytes, int *max); + +/* + * INT 7 + */ + +/* 16 bit code */ +Bool VBESetDisplayStart(vbeInfoPtr pVbe, int x, int y, Bool wait_retrace); +Bool VBEGetDisplayStart(vbeInfoPtr pVbe, int *x, int *y); + +/* + * INT 8 + */ + +/* if bits is 0, then it is a GET */ +int VBESetGetDACPaletteFormat(vbeInfoPtr pVbe, int bits); + +/* + * INT 9 + */ + +/* + * If getting a palette, the data argument is not used. It will return + * the data. + * If setting a palette, it will return the pointer received on success, + * NULL on failure. + */ +CARD32 *VBESetGetPaletteData(vbeInfoPtr pVbe, Bool set, int first, int num, + CARD32 *data, Bool secondary, Bool wait_retrace); +#define VBEFreePaletteData(data) xfree(data) + +/* + * INT A + */ + +typedef struct _VBEpmi { + int seg_tbl; + int tbl_off; + int tbl_len; +} VBEpmi; + +VBEpmi *VBEGetVBEpmi(vbeInfoPtr pVbe); +#define VESAFreeVBEpmi(pmi) xfree(pmi) + +/* high level helper functions */ + +typedef struct _vbeModeInfoRec { + int width; + int height; + int bpp; + int n; + struct _vbeModeInfoRec *next; +} vbeModeInfoRec, *vbeModeInfoPtr; + +vbeModeInfoPtr VBEBuildVbeModeList(vbeInfoPtr pVbe, + VbeInfoBlock *vbe); + +unsigned short VBECalcVbeModeIndex(vbeModeInfoPtr m, + DisplayModePtr mode, int bpp); + +typedef struct { + CARD8 *state; + CARD8 *pstate; + int statePage; + int stateSize; + int stateMode; +} vbeSaveRestoreRec, *vbeSaveRestorePtr; + +void +VBEVesaSaveRestore(vbeInfoPtr pVbe, vbeSaveRestorePtr vbe_sr, + vbeSaveRestoreFunction function); + +int VBEGetPixelClock(vbeInfoPtr pVbe, int mode, int Clock); +Bool VBEDPMSSet(vbeInfoPtr pVbe, int mode); + +#endif |