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/*************************************************************************************
* $Id$
*
* Created by Bogdan D. bogdand@users.sourceforge.net
* License: GPL
*
* $Log$
* Revision 1.1 2005/04/17 23:09:28 bogdand
* This is the theatre chip detection module
*
*
************************************************************************************/
#include "xf86.h"
#include "generic_bus.h"
#include "theatre.h"
#include "theatre_reg.h"
#undef read
#undef write
#undef ioctl
static Bool theatre_read(TheatrePtr t,CARD32 reg, CARD32 *data)
{
if(t->theatre_num<0)return FALSE;
return t->VIP->read(t->VIP, ((t->theatre_num & 0x3)<<14) | reg,4, (CARD8 *) data);
}
static Bool theatre_write(TheatrePtr t,CARD32 reg, CARD32 data)
{
if(t->theatre_num<0)return FALSE;
return t->VIP->write(t->VIP,((t->theatre_num & 0x03)<<14) | reg,4, (CARD8 *) &data);
}
#define RT_regr(reg,data) theatre_read(t,(reg),(data))
#define RT_regw(reg,data) theatre_write(t,(reg),(data))
#define VIP_TYPE "ATI VIP BUS"
TheatrePtr DetectTheatre(GENERIC_BUS_Ptr b)
{
TheatrePtr t;
CARD32 i;
CARD32 val;
char s[20];
b->ioctl(b,GB_IOCTL_GET_TYPE,20,s);
if(strcmp(VIP_TYPE, s)){
xf86DrvMsg(b->scrnIndex, X_ERROR, "DetectTheatre must be called with bus of type \"%s\", not \"%s\"\n",
VIP_TYPE, s);
return NULL;
}
t = xcalloc(1,sizeof(TheatreRec));
t->VIP = b;
t->theatre_num = -1;
t->mode=MODE_UNINITIALIZED;
b->read(b, VIP_VIP_VENDOR_DEVICE_ID, 4, (CARD8 *)&val);
for(i=0;i<4;i++)
{
if(b->read(b, ((i & 0x03)<<14) | VIP_VIP_VENDOR_DEVICE_ID, 4, (CARD8 *)&val))
{
if(val)xf86DrvMsg(b->scrnIndex, X_INFO, "Device %d on VIP bus ids as 0x%08x\n",i,val);
if(t->theatre_num>=0)continue; /* already found one instance */
switch(val){
case RT100_ATI_ID:
t->theatre_num=i;
t->theatre_id=RT100_ATI_ID;
break;
case RT200_ATI_ID:
t->theatre_num=i;
t->theatre_id=RT200_ATI_ID;
break;
}
} else {
xf86DrvMsg(b->scrnIndex, X_INFO, "No response from device %d on VIP bus\n",i);
}
}
if(t->theatre_num>=0)xf86DrvMsg(b->scrnIndex, X_INFO, "Detected Rage Theatre as device %d on VIP bus with id 0x%08x\n",t->theatre_num,t->theatre_id);
if(t->theatre_num < 0)
{
xfree(t);
return NULL;
}
RT_regr(VIP_VIP_REVISION_ID, &val);
xf86DrvMsg(b->scrnIndex, X_INFO, "Detected Rage Theatre revision %8.8X\n", val);
#if 0
DumpRageTheatreRegsByName(t);
#endif
return t;
}
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