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kdrive: Nuke dead AGP and VGA code. (#19921)

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This commit is contained in:
Adam Jackson 2009-02-16 18:44:00 -05:00
parent a932744d98
commit 970725d23e
7 changed files with 0 additions and 900 deletions
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3
configure.ac
View File

@ -371,7 +371,6 @@ AM_CONDITIONAL(PPC_VIDEO, [test "x$PPC_VIDEO" = xyes])
AM_CONDITIONAL(SPARC64_VIDEO, [test "x$SPARC64_VIDEO" = xyes])
DRI=no
KDRIVE_HW=no
dnl it would be nice to autodetect these *CONS_SUPPORTs
case $host_os in
*freebsd* | *dragonfly*)
@ -398,7 +397,6 @@ case $host_os in
;;
*linux*)
DRI=yes
KDRIVE_HW=yes
;;
*solaris*)
PKG_CHECK_EXISTS(libdrm, DRI=yes, DRI=no)
@ -407,7 +405,6 @@ case $host_os in
AC_DEFINE(CSRG_BASED, 1, [System is BSD-like])
;;
esac
AM_CONDITIONAL(KDRIVE_HW, test "x$KDRIVE_HW" = xyes)
XORG_RELEASE_VERSION
dnl augment XORG_RELEASE_VERSION for our snapshot number and to expose the

4
hw/kdrive/linux/Makefile.am
View File

@ -10,14 +10,10 @@ if TSLIB
TSLIB_C = tslib.c
endif
if KDRIVE_HW
KDRIVE_HW_SOURCES = \
agp.c \
agp.h \
evdev.c \
keyboard.c \
linux.c
endif
liblinux_la_SOURCES = \
bus.c \

354
hw/kdrive/linux/agp.c
View File

@ -1,354 +0,0 @@
/*
* Abstraction of the AGP GART interface.
*
* This version is for both Linux and FreeBSD.
*
* Copyright © 2000-2001 Nokia Home Communications
* Copyright © 2000 VA Linux Systems, Inc.
All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, and/or sell copies of the Software, and to permit persons
to whom the Software is furnished to do so, provided that the above
copyright notice(s) and this permission notice appear in all copies of
the Software and that both the above copyright notice(s) and this
permission notice appear in supporting documentation.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY
SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Except as contained in this notice, the name of a copyright holder
shall not be used in advertising or otherwise to promote the sale, use
or other dealings in this Software without prior written authorization
of the copyright holder.
*/
/*
* Author: Pontus Lidman <pontus.lidman@nokia.com> (adaption to KDrive) and others
*/
#ifdef HAVE_CONFIG_H
#include <kdrive-config.h>
#endif
#include <X11/X.h>
#include "misc.h"
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include "agp.h"
#if defined(linux)
#include <asm/ioctl.h>
#include <linux/agpgart.h>
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <sys/ioctl.h>
#include <sys/agpio.h>
#endif
#ifndef AGP_DEVICE
#define AGP_DEVICE "/dev/agpgart"
#endif
/* AGP page size is independent of the host page size. */
#ifndef AGP_PAGE_SIZE
#define AGP_PAGE_SIZE 4096
#endif
#define AGPGART_MAJOR_VERSION 0
#define AGPGART_MINOR_VERSION 99
static int gartFd = -1;
static int acquiredScreen = -1;
/*
* Open /dev/agpgart. Keep it open until server exit.
*/
static Bool
GARTInit(void)
{
static Bool initDone = FALSE;
struct _agp_info agpinf;
if (initDone)
return (gartFd != -1);
initDone = TRUE;
if (gartFd == -1)
gartFd = open(AGP_DEVICE, O_RDWR, 0);
else
return FALSE;
if (gartFd == -1) {
fprintf(stderr, "Unable to open " AGP_DEVICE " (%s)\n",
strerror(errno));
return FALSE;
}
KdAcquireGART(-1);
/* Check the kernel driver version. */
if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
fprintf(stderr, "GARTInit: AGPIOC_INFO failed (%s)\n",
strerror(errno));
close(gartFd);
gartFd = -1;
return FALSE;
}
KdReleaseGART(-1);
#if defined(linux)
/* Per Dave Jones, every effort will be made to keep the
* agpgart interface backwards compatible, so allow all
* future versions.
*/
if (
#if (AGPGART_MAJOR_VERSION > 0) /* quiet compiler */
agpinf.version.major < AGPGART_MAJOR_VERSION ||
#endif
(agpinf.version.major == AGPGART_MAJOR_VERSION &&
agpinf.version.minor < AGPGART_MINOR_VERSION)) {
fprintf(stderr,
"Kernel agpgart driver version is not current"
" (%d.%d vs %d.%d)\n",
agpinf.version.major, agpinf.version.minor,
AGPGART_MAJOR_VERSION, AGPGART_MINOR_VERSION);
close(gartFd);
gartFd = -1;
return FALSE;
}
#endif
return TRUE;
}
Bool
KdAgpGARTSupported()
{
return GARTInit();
}
AgpInfoPtr
KdGetAGPInfo(int screenNum)
{
struct _agp_info agpinf;
AgpInfoPtr info;
if (!GARTInit())
return NULL;
if ((info = calloc(sizeof(AgpInfo), 1)) == NULL) {
fprintf(stderr, "Failed to allocate AgpInfo\n");
return NULL;
}
if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
fprintf(stderr,
"xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n",
strerror(errno));
return NULL;
}
info->bridgeId = agpinf.bridge_id;
info->agpMode = agpinf.agp_mode;
info->base = agpinf.aper_base;
info->size = agpinf.aper_size;
info->totalPages = agpinf.pg_total;
info->systemPages = agpinf.pg_system;
info->usedPages = agpinf.pg_used;
return info;
}
/*
* XXX If multiple screens can acquire the GART, should we have a reference
* count instead of using acquiredScreen?
*/
Bool
KdAcquireGART(int screenNum)
{
if (screenNum != -1 && !GARTInit())
return FALSE;
if (screenNum == -1 || acquiredScreen != screenNum) {
if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) {
fprintf(stderr,
"AGPIOC_ACQUIRE failed (%s)\n",
strerror(errno));
return FALSE;
}
acquiredScreen = screenNum;
}
return TRUE;
}
Bool
KdReleaseGART(int screenNum)
{
if (screenNum != -1 && !GARTInit())
return FALSE;
if (acquiredScreen == screenNum) {
if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) {
fprintf(stderr,
"AGPIOC_RELEASE failed (%s)\n",
strerror(errno));
return FALSE;
}
acquiredScreen = -1;
return TRUE;
}
return FALSE;
}
int
KdAllocateGARTMemory(int screenNum, unsigned long size, int type,
unsigned long *physical)
{
struct _agp_allocate alloc;
int pages;
/*
* Allocates "size" bytes of GART memory (rounds up to the next
* page multiple) or type "type". A handle (key) for the allocated
* memory is returned. On error, the return value is -1.
*/
if (!GARTInit() || acquiredScreen != screenNum)
return -1;
pages = (size / AGP_PAGE_SIZE);
if (size % AGP_PAGE_SIZE != 0)
pages++;
/* XXX check for pages == 0? */
alloc.pg_count = pages;
alloc.type = type;
if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) {
fprintf(stderr, "KdAllocateGARTMemory: "
"allocation of %d pages failed\n\t(%s)\n", pages,
strerror(errno));
return -1;
}
if (physical)
*physical = alloc.physical;
return alloc.key;
}
/* Bind GART memory with "key" at "offset" */
Bool
KdBindGARTMemory(int screenNum, int key, unsigned long offset)
{
struct _agp_bind bind;
int pageOffset;
if (!GARTInit() || acquiredScreen != screenNum)
return FALSE;
if (acquiredScreen != screenNum) {
fprintf(stderr,
"AGP not acquired by this screen\n");
return FALSE;
}
if (offset % AGP_PAGE_SIZE != 0) {
fprintf(stderr, "KdBindGARTMemory: "
"offset (0x%lx) is not page-aligned (%d)\n",
offset, AGP_PAGE_SIZE);
return FALSE;
}
pageOffset = offset / AGP_PAGE_SIZE;
bind.pg_start = pageOffset;
bind.key = key;
if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) {
fprintf(stderr, "KdBindGARTMemory: "
"binding of gart memory with key %d\n"
"\tat offset 0x%lx failed (%s)\n",
key, offset, strerror(errno));
return FALSE;
}
return TRUE;
}
/* Unbind GART memory with "key" */
Bool
KdUnbindGARTMemory(int screenNum, int key)
{
struct _agp_unbind unbind;
if (!GARTInit() || acquiredScreen != screenNum)
return FALSE;
if (acquiredScreen != screenNum) {
fprintf(stderr,
"AGP not acquired by this screen\n");
return FALSE;
}
unbind.priority = 0;
unbind.key = key;
if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) {
fprintf(stderr, "KdUnbindGARTMemory: "
"unbinding of gart memory with key %d "
"failed (%s)\n", key, strerror(errno));
return FALSE;
}
return TRUE;
}
/* XXX Interface may change. */
Bool
KdEnableAGP(int screenNum, CARD32 mode)
{
agp_setup setup;
if (!GARTInit() || acquiredScreen != screenNum)
return FALSE;
setup.agp_mode = mode;
if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) {
fprintf(stderr, "KdEnableAGP: "
"AGPIOC_SETUP with mode %ld failed (%s)\n",
mode, strerror(errno));
return FALSE;
}
return TRUE;
}

71
hw/kdrive/linux/agp.h
View File

@ -1,71 +0,0 @@
/* COPYRIGHT AND PERMISSION NOTICE
Copyright (c) 2000, 2001 Nokia Home Communications
All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, and/or sell copies of the Software, and to permit persons
to whom the Software is furnished to do so, provided that the above
copyright notice(s) and this permission notice appear in all copies of
the Software and that both the above copyright notice(s) and this
permission notice appear in supporting documentation.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY
SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Except as contained in this notice, the name of a copyright holder
shall not be used in advertising or otherwise to promote the sale, use
or other dealings in this Software without prior written authorization
of the copyright holder.
X Window System is a trademark of The Open Group */
/* agp.h - header file for KDrive AGP GART interface
*
* Author: Pontus Lidman <pontus.lidman@nokia.com>
*
*/
#ifndef _AGP_H_
#define _AGP_H_
#include <X11/Xdefs.h>
#include <X11/Xmd.h>
/* These two definitions must be consistent with the kernel's,
but using 1 or 2 in driver code is even uglier */
#define AGP_DCACHE_MEMORY 1
#define AGP_PHYS_MEMORY 2
typedef struct _AgpInfo {
unsigned long bridgeId;
unsigned long agpMode;
unsigned long base;
unsigned long size;
unsigned long totalPages;
unsigned long systemPages;
unsigned long usedPages;
} AgpInfo, *AgpInfoPtr;
extern Bool KdAgpGARTSupported(void);
extern AgpInfoPtr KdGetAGPInfo(int screenNum);
extern Bool KdAcquireGART(int screenNum);
extern Bool KdReleaseGART(int screenNum);
extern int KdAllocateGARTMemory(int screenNum, unsigned long size, int type,
unsigned long *physical);
extern Bool KdBindGARTMemory(int screenNum, int key, unsigned long offset);
extern Bool KdUnbindGARTMemory(int screenNum, int key);
extern Bool KdEnableAGP(int screenNum, CARD32 mode);
#endif /* _AGP_H_ */

7
hw/kdrive/src/Makefile.am
View File

@ -6,12 +6,6 @@ AM_CFLAGS = -DHAVE_DIX_CONFIG_H
noinst_LTLIBRARIES = libkdrive.la libkdrivestubs.la
if KDRIVE_HW
KDRIVE_HW_SOURCES = \
vga.c \
vga.h
endif
if XV
KDRIVE_XV_SOURCES = \
kxv.c \
@ -31,7 +25,6 @@ libkdrive_la_SOURCES = \
kmode.c \
kshadow.c \
$(KDRIVE_XV_SOURCES) \
$(KDRIVE_HW_SOURCES) \
$(top_srcdir)/mi/miinitext.c
libkdrivestubs_la_SOURCES = \

317
hw/kdrive/src/vga.c
View File

@ -1,317 +0,0 @@
/*
* Copyright © 1999 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include <kdrive-config.h>
#endif
#include "vga.h"
#include <stdio.h>
#ifdef linux
#ifdef __i386__
#define extern static
#include <sys/io.h>
#undef extern
#define _VgaInb(r) inb(r)
#define _VgaOutb(v,r) outb(v,r)
#else
#define _VgaInb(r) 0
#define _VgaOutb(v,r)
#endif
#define _VgaByteAddr(a) ((VGAVOL8 *) (a))
#define _VgaBytePort(a) (a)
#endif
#undef VGA_DEBUG_REGISTERS
#ifdef VGA_DEBUG_REGISTERS
#define VGA_DEBUG(a) fprintf a
#else
#define VGA_DEBUG(a)
#endif
VGA8
VgaInb (VGA16 r)
{
return _VgaInb(r);
}
void
VgaOutb (VGA8 v, VGA16 r)
{
_VgaOutb (v,r);
}
VGA8
VgaReadMemb (VGA32 addr)
{
return *_VgaByteAddr(addr);
}
void
VgaWriteMemb (VGA8 v, VGA32 addr)
{
*_VgaByteAddr(addr) = v;
}
VGA8
VgaFetch (VgaCard *card, VGA16 reg)
{
VgaMap map;
VGA8 value = 0;
(*card->map) (card, reg, &map, VGAFALSE);
switch (map.access) {
case VgaAccessMem:
value = VgaReadMemb (map.port);
VGA_DEBUG ((stderr, "%08x -> %2x\n", map.port, value));
break;
case VgaAccessIo:
value = _VgaInb (map.port);
VGA_DEBUG ((stderr, "%4x -> %2x\n", map.port, value));
break;
case VgaAccessIndMem:
VgaWriteMemb (map.index, map.port + map.addr);
value = VgaReadMemb (map.port + map.value);
VGA_DEBUG ((stderr, "%4x/%2x -> %2x\n", map.port, map.index, value));
break;
case VgaAccessIndIo:
_VgaOutb (map.index, map.port + map.addr);
value = _VgaInb (map.port + map.value);
VGA_DEBUG ((stderr, "%4x/%2x -> %2x\n", map.port, map.index, value));
break;
case VgaAccessDone:
value = map.value;
VGA_DEBUG ((stderr, "direct %4x -> %2x\n", reg, value));
break;
}
return value;
}
void
VgaStore (VgaCard *card, VGA16 reg, VGA8 value)
{
VgaMap map;
map.value = value;
(*card->map) (card, reg, &map, VGATRUE);
switch (map.access) {
case VgaAccessMem:
VGA_DEBUG ((stderr, "%8x <- %2x\n", map.port, value));
VgaWriteMemb (map.value, map.port);
break;
case VgaAccessIo:
VGA_DEBUG ((stderr, "%4x <- %2x\n", map.port, value));
_VgaOutb (value, map.port);
break;
case VgaAccessIndMem:
VgaWriteMemb (map.index, map.port + map.addr);
VgaWriteMemb (value, map.port + map.value);
VGA_DEBUG ((stderr, "%4x/%2x <- %2x\n", map.port, map.index, value));
break;
case VgaAccessIndIo:
VGA_DEBUG ((stderr, "%4x/%2x <- %2x\n", map.port, map.index, value));
_VgaOutb (map.index, map.port + map.addr);
_VgaOutb (value, map.port + map.value);
break;
case VgaAccessDone:
VGA_DEBUG ((stderr, "direct %4x <- %2x\n", reg, value));
break;
}
}
void
VgaPreserve (VgaCard *card)
{
VgaSave *s;
VGA16 id;
for (s = card->saves; s->first != VGA_REG_NONE; s++)
{
for (id = s->first; id <= s->last; id++)
{
card->values[id].cur = VgaFetch (card, id);
card->values[id].save = card->values[id].cur;
card->values[id].flags = VGA_VALUE_VALID | VGA_VALUE_SAVED;
}
}
}
void
VgaRestore (VgaCard *card)
{
VgaSave *s;
VGA16 id;
for (s = card->saves; s->first != VGA_REG_NONE; s++)
{
for (id = s->first; id <= s->last; id++)
{
if (card->values[id].flags & VGA_VALUE_SAVED)
{
VgaStore (card, id, card->values[id].save);
card->values[id].cur = card->values[id].save;
}
}
}
}
void
VgaFinish (VgaCard *card)
{
VGA16 id;
for (id = 0; id < card->max; id++)
card->values[id].flags = 0;
}
void
VgaInvalidate (VgaCard *card)
{
VGA16 id;
for (id = 0; id < card->max; id++)
card->values[id].flags &= ~VGA_VALUE_VALID;
}
static void
_VgaSync (VgaCard *card, VGA16 id)
{
if (!(card->values[id].flags & VGA_VALUE_VALID))
{
card->values[id].cur = VgaFetch (card, id);
card->values[id].flags |= VGA_VALUE_VALID;
}
}
void
VgaSet (VgaCard *card, VgaReg *reg, VGA32 value)
{
VGA8 v, mask, new;
while (reg->len)
{
if (reg->id != VGA_REG_NONE)
{
_VgaSync (card, reg->id);
mask = ((1 << reg->len) - 1);
new = value & mask;
mask <<= reg->base;
new <<= reg->base;
v = card->values[reg->id].cur;
v = (v & ~mask) | new;
card->values[reg->id].cur = v;
card->values[reg->id].flags |= VGA_VALUE_MODIFIED|VGA_VALUE_DIRTY;
}
value >>= reg->len;
reg++;
}
}
void
VgaFlushReg (VgaCard *card, VgaReg *reg)
{
while (reg->len)
{
if (reg->id != VGA_REG_NONE)
{
if (card->values[reg->id].flags & VGA_VALUE_DIRTY)
{
VgaStore (card, reg->id, card->values[reg->id].cur);
card->values[reg->id].flags &= ~VGA_VALUE_DIRTY;
}
}
reg++;
}
}
void
VgaSetImm (VgaCard *card, VgaReg *reg, VGA32 value)
{
VgaSet (card, reg, value);
VgaFlushReg (card, reg);
}
VGA32
VgaGet (VgaCard *card, VgaReg *reg)
{
VGA32 value, offset, v;
VGA8 mask;
value = 0;
offset = 0;
while (reg->len)
{
if (reg->id != VGA_REG_NONE)
{
_VgaSync (card, reg->id);
mask = ((1 << reg->len) - 1);
v = (card->values[reg->id].cur >> reg->base) & mask;
value |= (v << offset);
}
offset += reg->len;
reg++;
}
return value;
}
VGA32
VgaGetImm (VgaCard *card, VgaReg *reg)
{
VgaReg *r = reg;
while (r->len)
{
if (r->id != VGA_REG_NONE)
card->values[r->id].flags &= ~VGA_VALUE_VALID;
r++;
}
return VgaGet (card, reg);
}
void
VgaFlush (VgaCard *card)
{
VGA16 id;
for (id = 0; id < card->max; id++)
{
if (card->values[id].flags & VGA_VALUE_DIRTY)
{
VgaStore (card, id, card->values[id].cur);
card->values[id].flags &= ~VGA_VALUE_DIRTY;
}
}
}
void
VgaFill (VgaCard *card, VGA16 low, VGA16 high)
{
VGA16 id;
for (id = low; id < high; id++)
_VgaSync (card, id);
}

144
hw/kdrive/src/vga.h
View File

@ -1,144 +0,0 @@
/*
* Copyright © 1999 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _VGA_H_
#define _VGA_H_
typedef unsigned long VGA32;
typedef unsigned short VGA16;
typedef unsigned char VGA8;
typedef int VGABOOL;
typedef volatile VGA8 VGAVOL8;
#define VGATRUE 1
#define VGAFALSE 0
typedef struct _vgaReg {
VGA16 id;
VGA8 base;
VGA8 len;
} VgaReg;
#define VGA_REG_NONE 0xffff
#define VGA_REG_END VGA_REG_NONE, 0, 0
typedef struct _vgaValue {
VGA8 save;
VGA8 cur;
VGA16 flags;
} VgaValue;
#define VGA_VALUE_VALID 1 /* value ever fetched */
#define VGA_VALUE_MODIFIED 2 /* value ever changed */
#define VGA_VALUE_DIRTY 4 /* value needs syncing */
#define VGA_VALUE_SAVED 8 /* value preserved */
typedef enum _vgaAccess {
VgaAccessMem, VgaAccessIo, VgaAccessIndMem, VgaAccessIndIo,
VgaAccessDone
} VgaAccess;
typedef struct _vgaMap {
VgaAccess access;
VGA32 port;
VGA8 addr; /* for Ind access; addr offset from port */
VGA8 value; /* for Ind access; value offset from port */
VGA8 index; /* for Ind access; index value */
} VgaMap;
#define VGA_UNLOCK_FIXED 1 /* dont save current value */
#define VGA_UNLOCK_LOCK 2 /* execute only on relock */
#define VGA_UNLOCK_UNLOCK 4 /* execute only on unlock */
typedef struct _vgaSave {
VGA16 first;
VGA16 last;
} VgaSave;
#define VGA_SAVE_END VGA_REG_NONE, VGA_REG_NONE
typedef struct _vgaCard {
void (*map) (struct _vgaCard *card, VGA16 reg, VgaMap *map, VGABOOL write);
void *closure;
int max;
VgaValue *values;
VgaSave *saves;
} VgaCard;
VGA8
VgaInb (VGA16 r);
void
VgaOutb (VGA8 v, VGA16 r);
VGA8
VgaReadMemb (VGA32 addr);
void
VgaWriteMemb (VGA8 v, VGA32 addr);
void
VgaSetImm (VgaCard *card, VgaReg *reg, VGA32 value);
VGA32
VgaGetImm (VgaCard *card, VgaReg *reg);
void
VgaSet (VgaCard *card, VgaReg *reg, VGA32 value);
VGA32
VgaGet (VgaCard *card, VgaReg *reg);
void
VgaFlush (VgaCard *card);
void
VgaFill (VgaCard *card, VGA16 low, VGA16 high);
void
VgaPreserve (VgaCard *card);
void
VgaInvalidate (VgaCard *card);
void
VgaRestore (VgaCard *card);
void
VgaFinish (VgaCard *card);
void
VgaFlushReg (VgaCard *card, VgaReg *reg);
VGA8
VgaFetch (VgaCard *card, VGA16 id);
void
VgaStore (VgaCard *card, VGA16 id, VGA8 value);
VGA8
_VgaFetchInd (VGA16 port, VGA8 reg);
void
_VgaStoreInd (VGA16 port, VGA8 reg, VGA8 value);
#endif /* _VGA_H_ */