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| 2 |
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| 3 | /*
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| 4 | * Copyright (c) 1997,1998 The XFree86 Project, Inc.
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| 5 | *
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| 6 | * Loosely based on code bearing the following copyright:
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| 7 | *
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| 8 | * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
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| 9 | *
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| 10 | * Author: Dirk Hohndel
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| 11 | */
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| 12 |
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| 13 | #ifndef _VGAHW_H
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| 14 | #define _VGAHW_H
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| 15 |
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| 16 | #include <X11/X.h>
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| 17 | #include "misc.h"
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| 18 | #include "input.h"
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| 19 | #include "scrnintstr.h"
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| 20 | #include "colormapst.h"
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| 21 |
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| 22 | #include "xf86str.h"
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| 23 | #include "xf86Pci.h"
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| 24 |
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| 25 | #include "xf86DDC.h"
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| 26 |
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| 27 | #include "globals.h"
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| 28 | #define DPMS_SERVER
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| 29 | #include <X11/extensions/dpms.h>
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| 30 |
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| 31 | extern int vgaHWGetIndex(void);
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| 32 |
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| 33 | /*
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| 34 | * access macro
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| 35 | */
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| 36 | #define VGAHWPTR(p) ((vgaHWPtr)((p)->privates[vgaHWGetIndex()].ptr))
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| 37 |
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| 38 | /* Standard VGA registers */
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| 39 | #define VGA_ATTR_INDEX 0x3C0
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| 40 | #define VGA_ATTR_DATA_W 0x3C0
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| 41 | #define VGA_ATTR_DATA_R 0x3C1
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| 42 | #define VGA_IN_STAT_0 0x3C2 /* read */
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| 43 | #define VGA_MISC_OUT_W 0x3C2 /* write */
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| 44 | #define VGA_ENABLE 0x3C3
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| 45 | #define VGA_SEQ_INDEX 0x3C4
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| 46 | #define VGA_SEQ_DATA 0x3C5
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| 47 | #define VGA_DAC_MASK 0x3C6
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| 48 | #define VGA_DAC_READ_ADDR 0x3C7
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| 49 | #define VGA_DAC_WRITE_ADDR 0x3C8
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| 50 | #define VGA_DAC_DATA 0x3C9
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| 51 | #define VGA_FEATURE_R 0x3CA /* read */
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| 52 | #define VGA_MISC_OUT_R 0x3CC /* read */
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| 53 | #define VGA_GRAPH_INDEX 0x3CE
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| 54 | #define VGA_GRAPH_DATA 0x3CF
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| 55 |
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| 56 | #define VGA_IOBASE_MONO 0x3B0
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| 57 | #define VGA_IOBASE_COLOR 0x3D0
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| 58 |
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| 59 | #define VGA_CRTC_INDEX_OFFSET 0x04
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| 60 | #define VGA_CRTC_DATA_OFFSET 0x05
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| 61 | #define VGA_IN_STAT_1_OFFSET 0x0A /* read */
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| 62 | #define VGA_FEATURE_W_OFFSET 0x0A /* write */
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| 63 |
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| 64 | /* default number of VGA registers stored internally */
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| 65 | #define VGA_NUM_CRTC 25
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| 66 | #define VGA_NUM_SEQ 5
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| 67 | #define VGA_NUM_GFX 9
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| 68 | #define VGA_NUM_ATTR 21
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| 69 |
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| 70 | /* Flags for vgaHWSave() and vgaHWRestore() */
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| 71 | #define VGA_SR_MODE 0x01
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| 72 | #define VGA_SR_FONTS 0x02
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| 73 | #define VGA_SR_CMAP 0x04
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| 74 | #define VGA_SR_ALL (VGA_SR_MODE | VGA_SR_FONTS | VGA_SR_CMAP)
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| 75 |
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| 76 | /* Defaults for the VGA memory window */
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| 77 | #define VGA_DEFAULT_PHYS_ADDR 0xA0000
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| 78 | #define VGA_DEFAULT_MEM_SIZE (64 * 1024)
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| 79 |
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| 80 | /*
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| 81 | * vgaRegRec contains settings of standard VGA registers.
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| 82 | */
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| 83 | typedef struct {
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| 84 | unsigned char MiscOutReg; /* */
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| 85 | unsigned char *CRTC; /* Crtc Controller */
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| 86 | unsigned char *Sequencer; /* Video Sequencer */
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| 87 | unsigned char *Graphics; /* Video Graphics */
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| 88 | unsigned char *Attribute; /* Video Atribute */
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| 89 | unsigned char DAC[768]; /* Internal Colorlookuptable */
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| 90 | unsigned char numCRTC; /* number of CRTC registers, def=VGA_NUM_CRTC */
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| 91 | unsigned char numSequencer; /* number of seq registers, def=VGA_NUM_SEQ */
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| 92 | unsigned char numGraphics; /* number of gfx registers, def=VGA_NUM_GFX */
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| 93 | unsigned char numAttribute; /* number of attr registers, def=VGA_NUM_ATTR */
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| 94 | } vgaRegRec, *vgaRegPtr;
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| 95 |
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| 96 | typedef struct _vgaHWRec *vgaHWPtr;
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| 97 |
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| 98 | typedef void (*vgaHWWriteIndexProcPtr)(vgaHWPtr hwp, CARD8 indx, CARD8 value);
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| 99 | typedef CARD8 (*vgaHWReadIndexProcPtr)(vgaHWPtr hwp, CARD8 indx);
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| 100 | typedef void (*vgaHWWriteProcPtr)(vgaHWPtr hwp, CARD8 value);
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| 101 | typedef CARD8 (*vgaHWReadProcPtr)(vgaHWPtr hwp);
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| 102 | typedef void (*vgaHWMiscProcPtr)(vgaHWPtr hwp);
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| 103 |
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| 104 |
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| 105 | /*
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| 106 | * vgaHWRec contains per-screen information required by the vgahw module.
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| 107 | *
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| 108 | * Note, the palette referred to by the paletteEnabled, enablePalette and
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| 109 | * disablePalette is the 16-entry (+overscan) EGA-compatible palette accessed
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| 110 | * via the first 17 attribute registers and not the main 8-bit palette.
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| 111 | */
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| 112 | typedef struct _vgaHWRec {
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| 113 | pointer Base; /* Address of "VGA" memory */
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| 114 | int MapSize; /* Size of "VGA" memory */
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| 115 | unsigned long MapPhys; /* phys location of VGA mem */
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| 116 | int IOBase; /* I/O Base address */
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| 117 | CARD8 * MMIOBase; /* Pointer to MMIO start */
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| 118 | int MMIOOffset; /* base + offset + vgareg
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| 119 | = mmioreg */
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| 120 | pointer FontInfo1; /* save area for fonts in
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| 121 | plane 2 */
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| 122 | pointer FontInfo2; /* save area for fonts in
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| 123 | plane 3 */
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| 124 | pointer TextInfo; /* save area for text */
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| 125 | vgaRegRec SavedReg; /* saved registers */
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| 126 | vgaRegRec ModeReg; /* register settings for
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| 127 | current mode */
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| 128 | Bool ShowOverscan;
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| 129 | Bool paletteEnabled;
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| 130 | Bool cmapSaved;
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| 131 | ScrnInfoPtr pScrn;
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| 132 | vgaHWWriteIndexProcPtr writeCrtc;
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| 133 | vgaHWReadIndexProcPtr readCrtc;
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| 134 | vgaHWWriteIndexProcPtr writeGr;
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| 135 | vgaHWReadIndexProcPtr readGr;
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| 136 | vgaHWReadProcPtr readST00;
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| 137 | vgaHWReadProcPtr readST01;
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| 138 | vgaHWReadProcPtr readFCR;
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| 139 | vgaHWWriteProcPtr writeFCR;
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| 140 | vgaHWWriteIndexProcPtr writeAttr;
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| 141 | vgaHWReadIndexProcPtr readAttr;
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| 142 | vgaHWWriteIndexProcPtr writeSeq;
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| 143 | vgaHWReadIndexProcPtr readSeq;
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| 144 | vgaHWWriteProcPtr writeMiscOut;
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| 145 | vgaHWReadProcPtr readMiscOut;
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| 146 | vgaHWMiscProcPtr enablePalette;
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| 147 | vgaHWMiscProcPtr disablePalette;
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| 148 | vgaHWWriteProcPtr writeDacMask;
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| 149 | vgaHWReadProcPtr readDacMask;
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| 150 | vgaHWWriteProcPtr writeDacWriteAddr;
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| 151 | vgaHWWriteProcPtr writeDacReadAddr;
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| 152 | vgaHWWriteProcPtr writeDacData;
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| 153 | vgaHWReadProcPtr readDacData;
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| 154 | pointer ddc;
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| 155 | IOADDRESS PIOOffset; /* offset + vgareg
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| 156 | = pioreg */
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| 157 | vgaHWReadProcPtr readEnable;
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| 158 | vgaHWWriteProcPtr writeEnable;
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| 159 | PCITAG Tag;
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| 160 | } vgaHWRec;
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| 161 |
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| 162 | /* Some macros that VGA drivers can use in their ChipProbe() function */
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| 163 | #define VGAHW_GET_IOBASE() ((inb(VGA_MISC_OUT_R) & 0x01) ? \
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| 164 | VGA_IOBASE_COLOR : VGA_IOBASE_MONO)
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| 165 |
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| 166 | #define OVERSCAN 0x11 /* Index of OverScan register */
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| 167 |
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| 168 | /* Flags that define how overscan correction should take place */
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| 169 | #define KGA_FIX_OVERSCAN 1 /* overcan correction required */
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| 170 | #define KGA_ENABLE_ON_ZERO 2 /* if possible enable display at beginning */
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| 171 | /* of next scanline/frame */
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| 172 | #define KGA_BE_TOT_DEC 4 /* always fix problem by setting blank end */
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| 173 | /* to total - 1 */
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| 174 | #define BIT_PLANE 3 /* Which plane we write to in mono mode */
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| 175 | #define BITS_PER_GUN 6
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| 176 | #define COLORMAP_SIZE 256
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| 177 |
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| 178 | #if defined(__powerpc__) || defined(__arm__) || defined(__s390__)
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| 179 | #define DACDelay(hw) /* No legacy VGA support */
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| 180 | #else
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| 181 | #define DACDelay(hw) \
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| 182 | do { \
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| 183 | (void)inb((hw)->PIOOffset + (hw)->IOBase + VGA_IN_STAT_1_OFFSET); \
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| 184 | (void)inb((hw)->PIOOffset + (hw)->IOBase + VGA_IN_STAT_1_OFFSET); \
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| 185 | } while (0)
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| 186 | #endif
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| 187 |
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| 188 | /* Function Prototypes */
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| 189 |
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| 190 | /* vgaHW.c */
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| 191 |
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| 192 | typedef void vgaHWProtectProc(ScrnInfoPtr, Bool);
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| 193 | typedef void vgaHWBlankScreenProc(ScrnInfoPtr, Bool);
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| 194 |
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| 195 | void vgaHWSetStdFuncs(vgaHWPtr hwp);
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| 196 | void vgaHWSetMmioFuncs(vgaHWPtr hwp, CARD8 *base, int offset);
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| 197 | void vgaHWProtect(ScrnInfoPtr pScrn, Bool on);
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| 198 | vgaHWProtectProc *vgaHWProtectWeak(void);
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| 199 | Bool vgaHWSaveScreen(ScreenPtr pScreen, int mode);
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| 200 | void vgaHWBlankScreen(ScrnInfoPtr pScrn, Bool on);
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| 201 | vgaHWBlankScreenProc *vgaHWBlankScreenWeak(void);
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| 202 | void vgaHWSeqReset(vgaHWPtr hwp, Bool start);
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| 203 | void vgaHWRestoreFonts(ScrnInfoPtr scrninfp, vgaRegPtr restore);
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| 204 | void vgaHWRestoreMode(ScrnInfoPtr scrninfp, vgaRegPtr restore);
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| 205 | void vgaHWRestoreColormap(ScrnInfoPtr scrninfp, vgaRegPtr restore);
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| 206 | void vgaHWRestore(ScrnInfoPtr scrninfp, vgaRegPtr restore, int flags);
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| 207 | void vgaHWSaveFonts(ScrnInfoPtr scrninfp, vgaRegPtr save);
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| 208 | void vgaHWSaveMode(ScrnInfoPtr scrninfp, vgaRegPtr save);
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| 209 | void vgaHWSaveColormap(ScrnInfoPtr scrninfp, vgaRegPtr save);
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| 210 | void vgaHWSave(ScrnInfoPtr scrninfp, vgaRegPtr save, int flags);
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| 211 | Bool vgaHWInit(ScrnInfoPtr scrnp, DisplayModePtr mode);
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| 212 | Bool vgaHWSetRegCounts(ScrnInfoPtr scrp, int numCRTC, int numSequencer,
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| 213 | int numGraphics, int numAttribute);
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| 214 | Bool vgaHWCopyReg(vgaRegPtr dst, vgaRegPtr src);
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| 215 | Bool vgaHWGetHWRec(ScrnInfoPtr scrp);
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| 216 | void vgaHWFreeHWRec(ScrnInfoPtr scrp);
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| 217 | Bool vgaHWMapMem(ScrnInfoPtr scrp);
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| 218 | void vgaHWUnmapMem(ScrnInfoPtr scrp);
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| 219 | void vgaHWGetIOBase(vgaHWPtr hwp);
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| 220 | void vgaHWLock(vgaHWPtr hwp);
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| 221 | void vgaHWUnlock(vgaHWPtr hwp);
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| 222 | void vgaHWEnable(vgaHWPtr hwp);
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| 223 | void vgaHWDisable(vgaHWPtr hwp);
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| 224 | void vgaHWDPMSSet(ScrnInfoPtr pScrn, int PowerManagementMode, int flags);
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| 225 | Bool vgaHWHandleColormaps(ScreenPtr pScreen);
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| 226 | void vgaHWddc1SetSpeed(ScrnInfoPtr pScrn, xf86ddcSpeed speed);
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| 227 | CARD32 vgaHWHBlankKGA(DisplayModePtr mode, vgaRegPtr regp, int nBits,
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| 228 | unsigned int Flags);
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| 229 | CARD32 vgaHWVBlankKGA(DisplayModePtr mode, vgaRegPtr regp, int nBits,
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| 230 | unsigned int Flags);
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| 231 | Bool vgaHWAllocDefaultRegs(vgaRegPtr regp);
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| 232 |
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| 233 | DDC1SetSpeedProc vgaHWddc1SetSpeedWeak(void);
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| 234 | SaveScreenProcPtr vgaHWSaveScreenWeak(void);
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| 235 |
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| 236 | #endif /* _VGAHW_H */
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