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/* $XFree86: xc/programs/Xserver/hw/xfree86/SuperProbe/Video7.c,v 3.4 1996/09/22 05:01:47 dawes Exp $ */
/*
* (c) Copyright 1993,1994 by David Wexelblat <dwex@xfree86.org>
*
* 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, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* 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. IN NO EVENT SHALL
* DAVID WEXELBLAT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of David Wexelblat shall not be
* used in advertising or otherwise to promote the sale, use or other dealings
* in this Software without prior written authorization from David Wexelblat.
*
*/
/* $XConsortium: Video7.c /main/6 1996/10/24 07:10:14 kaleb $ */
#include "Probe.h"
static Word Ports[] = {0x000, 0x000, SEQ_IDX, SEQ_REG};
#define NUMPORTS (sizeof(Ports)/sizeof(Word))
Chip_Descriptor Video7_Descriptor = {
"Video7",
Probe_Video7,
Ports,
NUMPORTS,
FALSE,
FALSE,
TRUE,
NULL,
};
Bool Probe_Video7(Chipset)
int *Chipset;
{
Bool result = FALSE;
Byte old, old1;
Word id;
/* Add CRTC to enabled ports */
Ports[0] = CRTC_IDX;
Ports[1] = CRTC_REG;
EnableIOPorts(NUMPORTS, Ports);
old = rdinx(SEQ_IDX, 0x06);
wrinx(SEQ_IDX, 0x06, 0xEA); /* enable extensions */
old1 = rdinx(CRTC_IDX, 0x0C);
wrinx(CRTC_IDX, 0x0C, 0x55);
id = rdinx(CRTC_IDX, 0x1F);
wrinx(CRTC_IDX, 0x0C, old1);
if (id == (0x55 ^ 0xEA))
{
/*
* It's Video7
*/
result = TRUE;
id = (rdinx(SEQ_IDX, 0x8F) << 8) | rdinx(SEQ_IDX, 0x8E);
if ((id >= 0x7000) && (id <= 0x70FF))
{
*Chipset = CHIP_V7_FWRITE;
}
else if ((id >= 0x7140) && (id <= 0x714F))
{
*Chipset = CHIP_V7_1024i;
}
else if (id == 0x7151)
{
*Chipset = CHIP_V7_VRAM2_B;
}
else if (id == 0x7152)
{
*Chipset = CHIP_V7_VRAM2_C;
}
else if (id == 0x7760)
{
*Chipset = CHIP_HT216BC;
}
else if (id == 0x7763)
{
*Chipset = CHIP_HT216D;
}
else if (id == 0x7764)
{
*Chipset = CHIP_HT216E;
}
else if (id == 0x7765)
{
*Chipset = CHIP_HT216F;
}
else if ((id >= 0x8000) && (id < 0xFFFF))
{
*Chipset = CHIP_V7_VEGA;
}
else
{
Chip_data = id;
*Chipset = CHIP_V7_UNKNOWN;
}
}
wrinx(SEQ_IDX, 6, old); /* disable extensions */
DisableIOPorts(NUMPORTS, Ports);
return(result);
}
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