xref: /original-bsd/sys/pmax/pmax/cons.c (revision e59fb703)
1 /*
2  * Copyright (c) 1988 University of Utah.
3  * Copyright (c) 1992 The Regents of the University of California.
4  * All rights reserved.
5  *
6  * This code is derived from software contributed to Berkeley by
7  * the Systems Programming Group of the University of Utah Computer
8  * Science Department and Ralph Campbell.
9  *
10  * %sccs.include.redist.c%
11  *
12  * from: Utah $Hdr: cons.c 1.1 90/07/09$
13  *
14  *	@(#)cons.c	7.1 (Berkeley) 01/07/92
15  */
16 
17 #include "param.h"
18 #include "proc.h"
19 #include "systm.h"
20 #include "buf.h"
21 #include "ioctl.h"
22 #include "tty.h"
23 #include "file.h"
24 #include "conf.h"
25 
26 #include "../include/machMon.h"
27 
28 /*
29  * Console output may be redirected to another tty
30  * (e.g. a window); if so, constty will point to the current
31  * virtual console.
32  */
33 struct	tty *constty;		/* virtual console output device */
34 
35 /*
36  * Get character from console.
37  */
38 cngetc()
39 {
40 	int (*f)() = (int (*)())MACH_MON_GETCHAR;
41 
42 	return (*f)();
43 }
44 
45 #include "pm.h"
46 
47 /*
48  * Print a character on console.
49  */
50 cnputc(c)
51 	register int c;
52 {
53 #if NPM > 0
54 	pmPutc(c);
55 #else
56 	int s;
57 	void (*f)() = (void (*)())MACH_MON_PUTCHAR;
58 
59 	s = splhigh();
60 	(*f)(c);
61 	splx(s);
62 #endif
63 }
64