This is the theatre chip detection module

1 files changed, 97 insertions, 0 deletions

diff --git a/src/theatre_detect.c b/src/theatre_detect.c
new file mode 100644
index 0000000..c07579a
--- /dev/null
+++ b/src/theatre_detect.c
@@ -0,0 +1,97 @@
+/*************************************************************************************
+ * $Id$
+ * 
+ * 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;
+}
+