diff options
Diffstat (limited to 'xorg-server/hw/xfree86/vgahw/vgaHW.h')
| -rw-r--r-- | xorg-server/hw/xfree86/vgahw/vgaHW.h | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/vgahw/vgaHW.h b/xorg-server/hw/xfree86/vgahw/vgaHW.h new file mode 100644 index 000000000..a38ea7559 --- /dev/null +++ b/xorg-server/hw/xfree86/vgahw/vgaHW.h @@ -0,0 +1,236 @@ + + +/* + * 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" +#define DPMS_SERVER +#include <X11/extensions/dpms.h> + +extern 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__) +#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); + +void vgaHWSetStdFuncs(vgaHWPtr hwp); +void vgaHWSetMmioFuncs(vgaHWPtr hwp, CARD8 *base, int offset); +void vgaHWProtect(ScrnInfoPtr pScrn, Bool on); +vgaHWProtectProc *vgaHWProtectWeak(void); +Bool vgaHWSaveScreen(ScreenPtr pScreen, int mode); +void vgaHWBlankScreen(ScrnInfoPtr pScrn, Bool on); +vgaHWBlankScreenProc *vgaHWBlankScreenWeak(void); +void vgaHWSeqReset(vgaHWPtr hwp, Bool start); +void vgaHWRestoreFonts(ScrnInfoPtr scrninfp, vgaRegPtr restore); +void vgaHWRestoreMode(ScrnInfoPtr scrninfp, vgaRegPtr restore); +void vgaHWRestoreColormap(ScrnInfoPtr scrninfp, vgaRegPtr restore); +void vgaHWRestore(ScrnInfoPtr scrninfp, vgaRegPtr restore, int flags); +void vgaHWSaveFonts(ScrnInfoPtr scrninfp, vgaRegPtr save); +void vgaHWSaveMode(ScrnInfoPtr scrninfp, vgaRegPtr save); +void vgaHWSaveColormap(ScrnInfoPtr scrninfp, vgaRegPtr save); +void vgaHWSave(ScrnInfoPtr scrninfp, vgaRegPtr save, int flags); +Bool vgaHWInit(ScrnInfoPtr scrnp, DisplayModePtr mode); +Bool vgaHWSetRegCounts(ScrnInfoPtr scrp, int numCRTC, int numSequencer, + int numGraphics, int numAttribute); +Bool vgaHWCopyReg(vgaRegPtr dst, vgaRegPtr src); +Bool vgaHWGetHWRec(ScrnInfoPtr scrp); +void vgaHWFreeHWRec(ScrnInfoPtr scrp); +Bool vgaHWMapMem(ScrnInfoPtr scrp); +void vgaHWUnmapMem(ScrnInfoPtr scrp); +void vgaHWGetIOBase(vgaHWPtr hwp); +void vgaHWLock(vgaHWPtr hwp); +void vgaHWUnlock(vgaHWPtr hwp); +void vgaHWEnable(vgaHWPtr hwp); +void vgaHWDisable(vgaHWPtr hwp); +void vgaHWDPMSSet(ScrnInfoPtr pScrn, int PowerManagementMode, int flags); +Bool vgaHWHandleColormaps(ScreenPtr pScreen); +void vgaHWddc1SetSpeed(ScrnInfoPtr pScrn, xf86ddcSpeed speed); +CARD32 vgaHWHBlankKGA(DisplayModePtr mode, vgaRegPtr regp, int nBits, + unsigned int Flags); +CARD32 vgaHWVBlankKGA(DisplayModePtr mode, vgaRegPtr regp, int nBits, + unsigned int Flags); +Bool vgaHWAllocDefaultRegs(vgaRegPtr regp); + +DDC1SetSpeedProc vgaHWddc1SetSpeedWeak(void); +SaveScreenProcPtr vgaHWSaveScreenWeak(void); + +#endif /* _VGAHW_H */ |