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/* $XFree86$ */
/*
* 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;
#if defined(__GNUC__) || defined(SCO) || defined(__USLC__) || \
defined(__SUNPRO_C)
#pragma pack() /* All GCC versions recognise this syntax */
#else
#pragma pack(0)
#endif
#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, 0, \
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
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