xref: /original-bsd/sys/kern/tty_conf.c (revision 1aa52444)
1 /*
2  * Copyright (c) 1982, 1986 Regents of the University of California.
3  * All rights reserved.  The Berkeley software License Agreement
4  * specifies the terms and conditions for redistribution.
5  *
6  *	@(#)tty_conf.c	7.3 (Berkeley) 10/18/88
7  */
8 
9 #include "param.h"
10 #include "systm.h"
11 #include "buf.h"
12 #include "ioctl.h"
13 #include "tty.h"
14 #include "conf.h"
15 
16 int	nodev();
17 int	nulldev();
18 
19 int	ttyopen(),ttylclose(),ttread(),ttwrite(),nullioctl(),ttstart();
20 int	ttymodem(), nullmodem(), ttyinput();
21 
22 int	ottyopen(), ottylclose(), ottread(), ottwrite();
23 int	ottyinput(), ottstart(), ottymodem();
24 
25 #include "bk.h"
26 #if NBK > 0
27 int	bkopen(),bkclose(),bkread(),bkinput(),bkioctl();
28 #endif
29 
30 #include "tb.h"
31 #if NTB > 0
32 int	tbopen(),tbclose(),tbread(),tbinput(),tbioctl();
33 #endif
34 #include "sl.h"
35 #if NSL > 0
36 int	slopen(),slclose(),slinput(),sltioctl(),slstart();
37 #endif
38 
39 
40 struct	linesw linesw[] =
41 {
42 	ttyopen, ttylclose, ttread, ttwrite, nullioctl,
43 	ttyinput, nodev, nulldev, ttstart, ttymodem,	/* 0- termios */
44 #if NBK > 0
45 	bkopen, bkclose, bkread, ttwrite, bkioctl,
46 	bkinput, nodev, nulldev, ttstart, nullmodem,	/* 1- NETLDISC */
47 #else
48 	nodev, nodev, nodev, nodev, nodev,
49 	nodev, nodev, nodev, nodev, nodev,
50 #endif
51 	nodev, nodev, nodev, nodev, nodev,		/* 2- defunct */
52 	nodev, nodev, nodev, nodev, nodev,
53 #if NTB > 0
54 	tbopen, tbclose, tbread, nodev, tbioctl,
55 	tbinput, nodev, nulldev, ttstart, nullmodem,	/* 3- TABLDISC */
56 #else
57 	nodev, nodev, nodev, nodev, nodev,
58 	nodev, nodev, nodev, nodev, nodev,
59 #endif
60 #if NSL > 0
61 	slopen, slclose, nodev, nodev, sltioctl,
62 	slinput, nodev, nulldev, slstart, nullmodem,	/* 4- SLIPDISC */
63 #else
64 	nodev, nodev, nodev, nodev, nodev,
65 	nodev, nodev, nodev, nodev, nodev,
66 #endif
67 };
68 
69 int	nldisp = sizeof (linesw) / sizeof (linesw[0]);
70 
71 /*
72  * Do nothing specific version of line
73  * discipline specific ioctl command.
74  */
75 /*ARGSUSED*/
76 nullioctl(tp, cmd, data, flags)
77 	struct tty *tp;
78 	char *data;
79 	int flags;
80 {
81 
82 #ifdef lint
83 	tp = tp; data = data; flags = flags;
84 #endif
85 	return (-1);
86 }
87