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/*
* $Id$
*
* 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.
*/
/* $XFree86: $ */
#include "trident.h"
#define extern
#include <asm/io.h>
#undef extern
#undef TRI_DEBUG
Bool
tridentCardInit (KdCardInfo *card)
{
int k;
char *pixels;
TridentCardInfo *tridentc;
tridentc = (TridentCardInfo *) xalloc (sizeof (TridentCardInfo));
if (!tridentc)
return FALSE;
if (!fbdevInitialize (card, &tridentc->fb))
{
xfree (tridentc);
return FALSE;
}
iopl (3);
tridentc->cop_base = (CARD8 *) KdMapDevice (TRIDENT_COP_BASE,
TRIDENT_COP_SIZE);
tridentc->cop = (Cop *) (tridentc->cop_base + TRIDENT_COP_OFF);
card->driver = tridentc;
return TRUE;
}
Bool
tridentScreenInit (KdScreenInfo *screen)
{
TridentCardInfo *tridentc = screen->card->driver;
TridentScreenInfo *tridents;
int screen_size, memory;
tridents = (TridentScreenInfo *) xalloc (sizeof (TridentScreenInfo));
if (!tridents)
return FALSE;
memset (tridents, '\0', sizeof (TridentScreenInfo));
if (!fbdevScreenInit (screen))
{
xfree (tridents);
return FALSE;
}
if (!tridentc->cop)
screen->dumb = TRUE;
screen_size = screen->byteStride * screen->height;
memory = (2048 + 512) * 1024;
if (memory >= screen_size + 2048)
{
tridents->cursor_base = tridentc->fb.fb + memory - 2048;
}
else
tridents->cursor_base = 0;
screen->driver = tridents;
return TRUE;
}
CARD8
tridentReadIndex (TridentCardInfo *tridentc, CARD16 port, CARD8 index)
{
CARD8 value;
outb (index, port);
value = inb (port+1);
return value;
}
void
tridentWriteIndex (TridentCardInfo *tridentc, CARD16 port, CARD8 index, CARD8 value)
{
outb (index, port);
outb (value, port+1);
}
void
tridentPause ()
{
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 200 * 1000;
select (1, 0, 0, 0, &tv);
}
void
tridentPreserve (KdCardInfo *card)
{
TridentCardInfo *tridentc = card->driver;
fbdevPreserve (card);
tridentc->save.reg_3c4_0e = tridentReadIndex (tridentc, 0x3c4, 0x0e);
tridentc->save.reg_3d4_36 = tridentReadIndex (tridentc, 0x3d4, 0x36);
tridentc->save.reg_3d4_39 = tridentReadIndex (tridentc, 0x3d4, 0x39);
tridentc->save.reg_3d4_62 = tridentReadIndex (tridentc, 0x3d4, 0x62);
tridentc->save.reg_3ce_21 = tridentReadIndex (tridentc, 0x3ce, 0x21);
#ifdef TRI_DEBUG
fprintf (stderr, "3c4 0e: %02x\n", tridentc->save.reg_3c4_0e);
fprintf (stderr, "3d4 36: %02x\n", tridentc->save.reg_3d4_36);
fprintf (stderr, "3d4 39: %02x\n", tridentc->save.reg_3d4_39);
fprintf (stderr, "3d4 62: %02x\n", tridentc->save.reg_3d4_62);
fprintf (stderr, "3ce 21: %02x\n", tridentc->save.reg_3ce_21);
fflush (stderr);
#endif
tridentPause ();
}
void
tridentSetMMIO (TridentCardInfo *tridentc)
{
int tries;
CARD8 v;
#ifdef TRI_DEBUG
fprintf (stderr, "Set MMIO\n");
#endif
/* enable config port writes */
for (tries = 0; tries < 3; tries++)
{
/* enable direct read when GE busy, enable PCI retries */
tridentWriteIndex (tridentc, 0x3d4, 0x62,
tridentc->save.reg_3d4_62 | 0x70);
/* make sure the chip is in new mode */
tridentReadIndex (tridentc, 0x3c4, 0xb);
/* enable access to upper registers */
tridentWriteIndex (tridentc, 0x3c4, 0xe,
tridentc->save.reg_3c4_0e | 0x80);
v = tridentReadIndex (tridentc, 0x3c4, 0xe);
if (!(v & 0x80))
{
fprintf (stderr, "Trident GE not enabled 0x%x\n", v);
continue;
}
/* enable burst r/w, disable memory mapped ports */
tridentWriteIndex (tridentc, 0x3d4, 0x39, 0x6);
/* reset GE, enable GE, set GE to 0xbff00 */
tridentWriteIndex (tridentc, 0x3d4, 0x36, 0x92);
if (tridentc->cop->status != 0xffffffff)
break;
}
#ifdef TRI_DEBUG
fprintf (stderr, "COP status 0x%x\n", tridentc->cop->status);
#endif
if (tridentc->cop->status == 0xffffffff)
FatalError ("Trident COP not visible\n");
}
void
tridentResetMMIO (TridentCardInfo *tridentc)
{
#ifdef TRI_DEBUG
fprintf (stderr, "Reset MMIO\n");
#endif
tridentWriteIndex (tridentc, 0x3ce, 0x21, tridentc->save.reg_3ce_21);
tridentWriteIndex (tridentc, 0x3d4, 0x62, tridentc->save.reg_3d4_62);
tridentWriteIndex (tridentc, 0x3d4, 0x39, tridentc->save.reg_3d4_39);
tridentWriteIndex (tridentc, 0x3d4, 0x36, tridentc->save.reg_3d4_36);
tridentWriteIndex (tridentc, 0x3c4, 0x0e, tridentc->save.reg_3c4_0e);
tridentPause ();
}
void
tridentEnable (ScreenPtr pScreen)
{
KdScreenPriv(pScreen);
TridentCardInfo *tridentc = pScreenPriv->card->driver;
fbdevEnable (pScreen);
tridentSetMMIO (tridentc);
}
void
tridentDisable (ScreenPtr pScreen)
{
fbdevDisable (pScreen);
}
const CARD8 tridentDPMSModes[4] = {
0x80, /* KD_DPMS_NORMAL */
0x8c, /* KD_DPMS_STANDBY */
0x8c, /* KD_DPMS_STANDBY */
0x8c, /* KD_DPMS_STANDBY */
/* 0xb0, /* KD_DPMS_SUSPEND */
/* 0xbc, /* KD_DPMS_POWERDOWN */
};
Bool
tridentDPMS (ScreenPtr pScreen, int mode)
{
KdScreenPriv(pScreen);
TridentCardInfo *tridentc = pScreenPriv->card->driver;
tridentWriteIndex (tridentc, 0x3ce, 0x21, tridentDPMSModes[mode]);
return TRUE;
}
void
tridentRestore (KdCardInfo *card)
{
TridentCardInfo *tridentc = card->driver;
tridentResetMMIO (tridentc);
fbdevRestore (card);
}
void
tridentScreenFini (KdScreenInfo *screen)
{
TridentScreenInfo *tridents = (TridentScreenInfo *) screen->driver;
xfree (tridents);
screen->driver = 0;
}
void
tridentCardFini (KdCardInfo *card)
{
TridentCardInfo *tridentc = card->driver;
if (tridentc->cop_base)
KdUnmapDevice ((void *) tridentc->cop_base, TRIDENT_COP_SIZE);
fbdevCardFini (card);
}
KdCardFuncs tridentFuncs = {
tridentCardInit, /* cardinit */
tridentScreenInit, /* scrinit */
tridentPreserve, /* preserve */
tridentEnable, /* enable */
tridentDPMS, /* dpms */
tridentDisable, /* disable */
tridentRestore, /* restore */
tridentScreenFini, /* scrfini */
tridentCardFini, /* cardfini */
tridentCursorInit, /* initCursor */
tridentCursorEnable, /* enableCursor */
tridentCursorDisable, /* disableCursor */
tridentCursorFini, /* finiCursor */
tridentRecolorCursor, /* recolorCursor */
tridentDrawInit, /* initAccel */
tridentDrawEnable, /* enableAccel */
tridentDrawDisable, /* disableAccel */
tridentDrawFini, /* finiAccel */
fbdevGetColors, /* getColors */
fbdevPutColors, /* putColors */
};
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