/* * Copyright (c) 1997,1998 The XFree86 Project, Inc. * * Loosely based on code bearing the following copyright: * * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany. * * Author: Dirk Hohndel */ #ifndef _VGAHW_H #define _VGAHW_H #include <X11/X.h> #include "misc.h" #include "input.h" #include "scrnintstr.h" #include "colormapst.h" #include "xf86str.h" #include "xf86Pci.h" #include "xf86DDC.h" #include "globals.h" #include <X11/extensions/dpmsconst.h> extern _X_EXPORT int vgaHWGetIndex(void); /* * access macro */ #define VGAHWPTR(p) ((vgaHWPtr)((p)->privates[vgaHWGetIndex()].ptr)) /* Standard VGA registers */ #define VGA_ATTR_INDEX 0x3C0 #define VGA_ATTR_DATA_W 0x3C0 #define VGA_ATTR_DATA_R 0x3C1 #define VGA_IN_STAT_0 0x3C2 /* read */ #define VGA_MISC_OUT_W 0x3C2 /* write */ #define VGA_ENABLE 0x3C3 #define VGA_SEQ_INDEX 0x3C4 #define VGA_SEQ_DATA 0x3C5 #define VGA_DAC_MASK 0x3C6 #define VGA_DAC_READ_ADDR 0x3C7 #define VGA_DAC_WRITE_ADDR 0x3C8 #define VGA_DAC_DATA 0x3C9 #define VGA_FEATURE_R 0x3CA /* read */ #define VGA_MISC_OUT_R 0x3CC /* read */ #define VGA_GRAPH_INDEX 0x3CE #define VGA_GRAPH_DATA 0x3CF #define VGA_IOBASE_MONO 0x3B0 #define VGA_IOBASE_COLOR 0x3D0 #define VGA_CRTC_INDEX_OFFSET 0x04 #define VGA_CRTC_DATA_OFFSET 0x05 #define VGA_IN_STAT_1_OFFSET 0x0A /* read */ #define VGA_FEATURE_W_OFFSET 0x0A /* write */ /* default number of VGA registers stored internally */ #define VGA_NUM_CRTC 25 #define VGA_NUM_SEQ 5 #define VGA_NUM_GFX 9 #define VGA_NUM_ATTR 21 /* Flags for vgaHWSave() and vgaHWRestore() */ #define VGA_SR_MODE 0x01 #define VGA_SR_FONTS 0x02 #define VGA_SR_CMAP 0x04 #define VGA_SR_ALL (VGA_SR_MODE | VGA_SR_FONTS | VGA_SR_CMAP) /* Defaults for the VGA memory window */ #define VGA_DEFAULT_PHYS_ADDR 0xA0000 #define VGA_DEFAULT_MEM_SIZE (64 * 1024) /* * vgaRegRec contains settings of standard VGA registers. */ typedef struct { unsigned char MiscOutReg; /* */ unsigned char *CRTC; /* Crtc Controller */ unsigned char *Sequencer; /* Video Sequencer */ unsigned char *Graphics; /* Video Graphics */ unsigned char *Attribute; /* Video Atribute */ unsigned char DAC[768]; /* Internal Colorlookuptable */ unsigned char numCRTC; /* number of CRTC registers, def=VGA_NUM_CRTC */ unsigned char numSequencer; /* number of seq registers, def=VGA_NUM_SEQ */ unsigned char numGraphics; /* number of gfx registers, def=VGA_NUM_GFX */ unsigned char numAttribute; /* number of attr registers, def=VGA_NUM_ATTR */ } vgaRegRec, *vgaRegPtr; typedef struct _vgaHWRec *vgaHWPtr; typedef void (*vgaHWWriteIndexProcPtr) (vgaHWPtr hwp, CARD8 indx, CARD8 value); typedef CARD8 (*vgaHWReadIndexProcPtr) (vgaHWPtr hwp, CARD8 indx); typedef void (*vgaHWWriteProcPtr) (vgaHWPtr hwp, CARD8 value); typedef CARD8 (*vgaHWReadProcPtr) (vgaHWPtr hwp); typedef void (*vgaHWMiscProcPtr) (vgaHWPtr hwp); /* * vgaHWRec contains per-screen information required by the vgahw module. * * Note, the palette referred to by the paletteEnabled, enablePalette and * disablePalette is the 16-entry (+overscan) EGA-compatible palette accessed * via the first 17 attribute registers and not the main 8-bit palette. */ typedef struct _vgaHWRec { pointer Base; /* Address of "VGA" memory */ int MapSize; /* Size of "VGA" memory */ unsigned long MapPhys; /* phys location of VGA mem */ int IOBase; /* I/O Base address */ CARD8 *MMIOBase; /* Pointer to MMIO start */ int MMIOOffset; /* base + offset + vgareg = mmioreg */ pointer FontInfo1; /* save area for fonts in plane 2 */ pointer FontInfo2; /* save area for fonts in plane 3 */ pointer TextInfo; /* save area for text */ vgaRegRec SavedReg; /* saved registers */ vgaRegRec ModeReg; /* register settings for current mode */ Bool ShowOverscan; Bool paletteEnabled; Bool cmapSaved; ScrnInfoPtr pScrn; vgaHWWriteIndexProcPtr writeCrtc; vgaHWReadIndexProcPtr readCrtc; vgaHWWriteIndexProcPtr writeGr; vgaHWReadIndexProcPtr readGr; vgaHWReadProcPtr readST00; vgaHWReadProcPtr readST01; vgaHWReadProcPtr readFCR; vgaHWWriteProcPtr writeFCR; vgaHWWriteIndexProcPtr writeAttr; vgaHWReadIndexProcPtr readAttr; vgaHWWriteIndexProcPtr writeSeq; vgaHWReadIndexProcPtr readSeq; vgaHWWriteProcPtr writeMiscOut; vgaHWReadProcPtr readMiscOut; vgaHWMiscProcPtr enablePalette; vgaHWMiscProcPtr disablePalette; vgaHWWriteProcPtr writeDacMask; vgaHWReadProcPtr readDacMask; vgaHWWriteProcPtr writeDacWriteAddr; vgaHWWriteProcPtr writeDacReadAddr; vgaHWWriteProcPtr writeDacData; vgaHWReadProcPtr readDacData; pointer ddc; struct pci_io_handle *io; vgaHWReadProcPtr readEnable; vgaHWWriteProcPtr writeEnable; struct pci_device *dev; } vgaHWRec; /* Some macros that VGA drivers can use in their ChipProbe() function */ #define OVERSCAN 0x11 /* Index of OverScan register */ /* Flags that define how overscan correction should take place */ #define KGA_FIX_OVERSCAN 1 /* overcan correction required */ #define KGA_ENABLE_ON_ZERO 2 /* if possible enable display at beginning */ /* of next scanline/frame */ #define KGA_BE_TOT_DEC 4 /* always fix problem by setting blank end */ /* to total - 1 */ #define BIT_PLANE 3 /* Which plane we write to in mono mode */ #define BITS_PER_GUN 6 #define COLORMAP_SIZE 256 #define DACDelay(hw) \ do { \ (hw)->readST01((hw)); \ (hw)->readST01((hw)); \ } while (0) /* Function Prototypes */ /* vgaHW.c */ typedef void vgaHWProtectProc(ScrnInfoPtr, Bool); typedef void vgaHWBlankScreenProc(ScrnInfoPtr, Bool); extern _X_EXPORT void vgaHWSetStdFuncs(vgaHWPtr hwp); extern _X_EXPORT void vgaHWSetMmioFuncs(vgaHWPtr hwp, CARD8 *base, int offset); extern _X_EXPORT void vgaHWProtect(ScrnInfoPtr pScrn, Bool on); extern _X_EXPORT vgaHWProtectProc *vgaHWProtectWeak(void); extern _X_EXPORT Bool vgaHWSaveScreen(ScreenPtr pScreen, int mode); extern _X_EXPORT void vgaHWBlankScreen(ScrnInfoPtr pScrn, Bool on); extern _X_EXPORT vgaHWBlankScreenProc *vgaHWBlankScreenWeak(void); extern _X_EXPORT void vgaHWSeqReset(vgaHWPtr hwp, Bool start); extern _X_EXPORT void vgaHWRestoreFonts(ScrnInfoPtr scrninfp, vgaRegPtr restore); extern _X_EXPORT void vgaHWRestoreMode(ScrnInfoPtr scrninfp, vgaRegPtr restore); extern _X_EXPORT void vgaHWRestoreColormap(ScrnInfoPtr scrninfp, vgaRegPtr restore); extern _X_EXPORT void vgaHWRestore(ScrnInfoPtr scrninfp, vgaRegPtr restore, int flags); extern _X_EXPORT void vgaHWSaveFonts(ScrnInfoPtr scrninfp, vgaRegPtr save); extern _X_EXPORT void vgaHWSaveMode(ScrnInfoPtr scrninfp, vgaRegPtr save); extern _X_EXPORT void vgaHWSaveColormap(ScrnInfoPtr scrninfp, vgaRegPtr save); extern _X_EXPORT void vgaHWSave(ScrnInfoPtr scrninfp, vgaRegPtr save, int flags); extern _X_EXPORT Bool vgaHWInit(ScrnInfoPtr scrnp, DisplayModePtr mode); extern _X_EXPORT Bool vgaHWSetRegCounts(ScrnInfoPtr scrp, int numCRTC, int numSequencer, int numGraphics, int numAttribute); extern _X_EXPORT Bool vgaHWCopyReg(vgaRegPtr dst, vgaRegPtr src); extern _X_EXPORT Bool vgaHWGetHWRec(ScrnInfoPtr scrp); extern _X_EXPORT void vgaHWFreeHWRec(ScrnInfoPtr scrp); extern _X_EXPORT Bool vgaHWMapMem(ScrnInfoPtr scrp); extern _X_EXPORT void vgaHWUnmapMem(ScrnInfoPtr scrp); extern _X_EXPORT void vgaHWGetIOBase(vgaHWPtr hwp); extern _X_EXPORT void vgaHWLock(vgaHWPtr hwp); extern _X_EXPORT void vgaHWUnlock(vgaHWPtr hwp); extern _X_EXPORT void vgaHWEnable(vgaHWPtr hwp); extern _X_EXPORT void vgaHWDisable(vgaHWPtr hwp); extern _X_EXPORT void vgaHWDPMSSet(ScrnInfoPtr pScrn, int PowerManagementMode, int flags); extern _X_EXPORT Bool vgaHWHandleColormaps(ScreenPtr pScreen); extern _X_EXPORT void vgaHWddc1SetSpeed(ScrnInfoPtr pScrn, xf86ddcSpeed speed); extern _X_EXPORT CARD32 vgaHWHBlankKGA(DisplayModePtr mode, vgaRegPtr regp, int nBits, unsigned int Flags); extern _X_EXPORT CARD32 vgaHWVBlankKGA(DisplayModePtr mode, vgaRegPtr regp, int nBits, unsigned int Flags); extern _X_EXPORT Bool vgaHWAllocDefaultRegs(vgaRegPtr regp); extern _X_EXPORT DDC1SetSpeedProc vgaHWddc1SetSpeedWeak(void); extern _X_EXPORT SaveScreenProcPtr vgaHWSaveScreenWeak(void); extern _X_EXPORT void xf86GetClocks(ScrnInfoPtr pScrn, int num, Bool (*ClockFunc) (ScrnInfoPtr, int), void (*ProtectRegs) (ScrnInfoPtr, Bool), void (*BlankScreen) (ScrnInfoPtr, Bool), unsigned long vertsyncreg, int maskval, int knownclkindex, int knownclkvalue); #endif /* _VGAHW_H */