236 lines
8.7 KiB
C
236 lines
8.7 KiB
C
|
|
|
|
/*
|
|
* 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;
|
|
IOADDRESS PIOOffset; /* offset + vgareg
|
|
= pioreg */
|
|
vgaHWReadProcPtr readEnable;
|
|
vgaHWWriteProcPtr writeEnable;
|
|
struct pci_device *dev;
|
|
} vgaHWRec;
|
|
|
|
/* Some macros that VGA drivers can use in their ChipProbe() function */
|
|
#define VGAHW_GET_IOBASE() ((inb(VGA_MISC_OUT_R) & 0x01) ? \
|
|
VGA_IOBASE_COLOR : VGA_IOBASE_MONO)
|
|
|
|
#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
|
|
|
|
#if defined(__powerpc__) || defined(__arm__) || defined(__s390__) || defined(__nds32__)
|
|
#define DACDelay(hw) /* No legacy VGA support */
|
|
#else
|
|
#define DACDelay(hw) \
|
|
do { \
|
|
(void)inb((hw)->PIOOffset + (hw)->IOBase + VGA_IN_STAT_1_OFFSET); \
|
|
(void)inb((hw)->PIOOffset + (hw)->IOBase + VGA_IN_STAT_1_OFFSET); \
|
|
} while (0)
|
|
#endif
|
|
|
|
/* 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);
|
|
|
|
#endif /* _VGAHW_H */
|