Initial revision

1 files changed, 228 insertions, 0 deletions

diff --git a/hw/xfree86/vgahw/vgaHW.h b/hw/xfree86/vgahw/vgaHW.h
new file mode 100644
index 000000000..9a51f1046
--- /dev/null
+++ b/hw/xfree86/vgahw/vgaHW.h
@@ -0,0 +1,228 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/vgahw/vgaHW.h,v 1.31 2002/04/04 14:05:56 eich Exp $ */
+
+
+/*
+ * 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 "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 "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;
+    PCITAG			Tag;
+} 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__)
+#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 */
+
+void vgaHWSetStdFuncs(vgaHWPtr hwp);
+void vgaHWSetMmioFuncs(vgaHWPtr hwp, CARD8 *base, int offset);
+void vgaHWProtect(ScrnInfoPtr pScrn, Bool on);
+Bool vgaHWSaveScreen(ScreenPtr pScreen, int mode);
+void vgaHWBlankScreen(ScrnInfoPtr pScrn, Bool on);
+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);
+#endif /* _VGAHW_H */