--- xinu/sys/ttycntl.c	2018/04/24 17:39:04	1.1.1.1
+++ xinu/sys/ttycntl.c	2018/04/24 17:39:50	1.1.1.2
@@ -4,33 +4,46 @@
 #include <kernel.h>
 #include <tty.h>
 #include <io.h>
-#include <slu.h>
+
+/* set up macros for appropriate SLU as spec. by SLUCHIP:
+   if SLUCHIP==6850, #include slu6850.h, #define TTYCNTL ttycntl6850, etc.
+   if SLUCHIP==7201, #include slu7201.h, #define TTYCNTL ttycntl7201, etc.
+   if SLUCHIP undef.,#include slu.h, #define TTYCNTL ttycntl  (orig. case)
+   similarly sluaccess.h, other TTY fns */
+#include <sluinclude.h>
 
 /*------------------------------------------------------------------------
  *  ttycntl  -  control a tty device by setting modes
  *------------------------------------------------------------------------
  */
-ttycntl(devptr, func)
-struct	devsw	*devptr;
-int func;
+TTYCNTL(devptr, func, addr)
+	struct	devsw	*devptr;
+	int func;
+	char *addr;
 {
 	register struct	tty *ttyp;
+	register struct csr *cptr;
 	char	ch;
-	PStype	ps;
+
+#ifdef	DEBUG
+	dotrace("ttycntl", &devptr, 3);
+#endif
 
 	ttyp = &tty[devptr->dvminor];
+
+	cptr = (struct csr *)devptr->dvcsr;
 	switch ( func )	{
 	case TCSETBRK:
-		ttyp->ioaddr->ctstat |=	SLUTBREAK;
+		slusetbrk(cptr);
 		break;
 	case TCRSTBRK:
-		ttyp->ioaddr->ctstat &=	~SLUTBREAK;
+		slurstbrk(cptr);
 		break;
 	case TCNEXTC:
-		disable(ps);
+		disable();
 		wait(ttyp->isem);
 		ch = ttyp->ibuff[ttyp->itail];
-		restore(ps);
+		restore();
 		signal(ttyp->isem);
 		return(ch);
 	case TCMODER:
@@ -50,13 +63,6 @@ int func;
 		break;
 	case TCICHARS:
 		return(scount(ttyp->isem));
-	case TCINT:
-		ttyp->iintr = TRUE;
-		ttyp->iintpid = getpid();
-		break;
-	case TCNOINT:
-		ttyp->iintr = FALSE;
-		break;
 	default:
 		return(SYSERR);
 	}