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/* $XFree86: xc/programs/Xserver/hw/xfree86/SuperProbe/RealTek.c,v 3.3 1996/02/04 08:57:06 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: RealTek.c /main/5 1996/02/21 17:12:18 kaleb $ */
#include "Probe.h"
static Word Ports[] = {0x000, 0x000, 0x3D6, 0x3D7};
#define NUMPORTS (sizeof(Ports)/sizeof(Word))
static int MemProbe_RealTek __STDCARGS((int));
Chip_Descriptor RealTek_Descriptor = {
"RealTek",
Probe_RealTek,
Ports,
NUMPORTS,
FALSE,
FALSE,
TRUE,
MemProbe_RealTek,
};
#ifdef __STDC__
Bool Probe_RealTek(int *Chipset)
#else
Bool Probe_RealTek(Chipset)
int *Chipset;
#endif
{
Bool result = FALSE;
Byte ver;
/* Add CRTC to enabled ports */
Ports[0] = CRTC_IDX;
Ports[1] = CRTC_REG;
EnableIOPorts(NUMPORTS, Ports);
if (testinx2(CRTC_IDX, 0x1F, 0x3F) &&
tstrg(0x3D6, 0x0F) &&
tstrg(0x3D7, 0x0F))
{
result = TRUE;
ver = rdinx(CRTC_IDX, 0x1A) >> 6;
switch (ver)
{
case 0x00:
*Chipset = CHIP_RT_3103;
break;
case 0x01:
*Chipset = CHIP_RT_3105;
break;
case 0x02:
*Chipset = CHIP_RT_3106;
break;
default:
Chip_data = ver;
*Chipset = CHIP_RT_UNK;
break;
}
}
DisableIOPorts(NUMPORTS, Ports);
return(result);
}
static int MemProbe_RealTek(Chipset)
int Chipset;
{
int Mem = 0;
EnableIOPorts(NUMPORTS, Ports);
switch (Chipset)
{
case CHIP_RT_3103:
switch (rdinx(CRTC_IDX, 0x1E) & 0x03)
{
case 0x00:
Mem = 256;
break;
case 0x01:
Mem = 512;
break;
case 0x02:
Mem = 768;
break;
case 0x03:
Mem = 1024;
break;
}
break;
case CHIP_RT_3105:
case CHIP_RT_3106:
switch (rdinx(CRTC_IDX, 0x1E) & 0x03)
{
case 0x00:
Mem = 256;
break;
case 0x01:
Mem = 512;
break;
case 0x02:
Mem = 1024;
break;
case 0x03:
Mem = 2048;
break;
}
break;
}
DisableIOPorts(NUMPORTS, Ports);
return(Mem);
}
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