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Diffstat (limited to 'hw/kdrive/src/vga.c')
-rw-r--r--hw/kdrive/src/vga.c331
1 files changed, 0 insertions, 331 deletions
diff --git a/hw/kdrive/src/vga.c b/hw/kdrive/src/vga.c
deleted file mode 100644
index 3e7a43ee9..000000000
--- a/hw/kdrive/src/vga.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/*
- * Id: vga.c,v 1.1 1999/11/02 03:54:46 keithp Exp $
- *
- * 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.
- */
-/* $RCSId: xc/programs/Xserver/hw/kdrive/vga.c,v 1.2 1999/12/30 03:03:07 robin Exp $ */
-
-#ifdef HAVE_CONFIG_H
-#include <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
-
-#ifdef VXWORKS
-#define _VgaInb(r) 0
-#define _VgaOutb(v,r) 0
-
-#define _VgaByteAddr(a) ((VGAVOL8 *) ((VGA32) (a) ^ 3))
-#define _VgaBytePort(a) 0
-
-#undef stderr
-#define stderr stdout
-
-#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);
-}
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