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tty_conf.c revision 1.15
      1 /*	$NetBSD: tty_conf.c,v 1.15 1994/10/30 21:48:00 cgd Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1982, 1986, 1991, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  * (c) UNIX System Laboratories, Inc.
      7  * All or some portions of this file are derived from material licensed
      8  * to the University of California by American Telephone and Telegraph
      9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
     10  * the permission of UNIX System Laboratories, Inc.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *	This product includes software developed by the University of
     23  *	California, Berkeley and its contributors.
     24  * 4. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  *	@(#)tty_conf.c	8.4 (Berkeley) 1/21/94
     41  */
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/buf.h>
     46 #include <sys/ioctl.h>
     47 #include <sys/proc.h>
     48 #include <sys/tty.h>
     49 #include <sys/conf.h>
     50 
     51 #define	ttynodisc ((int (*) __P((dev_t, struct tty *)))enodev)
     52 #define	ttyerrclose ((int (*) __P((struct tty *, int flags)))enodev)
     53 #define	ttyerrio ((int (*) __P((struct tty *, struct uio *, int)))enodev)
     54 #define	ttyerrinput ((int (*) __P((int c, struct tty *)))enodev)
     55 #define	ttyerrstart ((int (*) __P((struct tty *)))enodev)
     56 
     57 int	nullioctl __P((struct tty *tp, u_long cmd, caddr_t data,
     58 			int flag, struct proc *p));
     59 
     60 #include "tb.h"
     61 #if NTB > 0
     62 int	tbopen __P((dev_t dev, struct tty *tp));
     63 int	tbclose __P((struct tty *tp, int flags));
     64 int	tbread __P((struct tty *tp, struct uio *uio, int flags));
     65 int	tbtioctl __P((struct tty *tp, u_long cmd, caddr_t data,
     66 			int flag, struct proc *p));
     67 int	tbinput __P((int c, struct tty *tp));
     68 #endif
     69 
     70 #include "sl.h"
     71 #if NSL > 0
     72 int	slopen __P((dev_t dev, struct tty *tp));
     73 int	slclose __P((struct tty *tp, int flags));
     74 int	sltioctl __P((struct tty *tp, u_long cmd, caddr_t data,
     75 			int flag, struct proc *p));
     76 int	slinput __P((int c, struct tty *tp));
     77 int	slstart __P((struct tty *tp));
     78 #endif
     79 
     80 #include "ppp.h"
     81 #if NPPP > 0
     82 int	pppopen __P((dev_t dev, struct tty *tp));
     83 int	pppclose __P((struct tty *tp, int flags));
     84 int	ppptioctl __P((struct tty *tp, u_long cmd, caddr_t data,
     85 			int flag, struct proc *p));
     86 int	pppinput __P((int c, struct tty *tp));
     87 int	pppstart __P((struct tty *tp));
     88 int	pppread __P((struct tty *tp, struct uio *uio, int flag));
     89 int	pppwrite __P((struct tty *tp, struct uio *uio, int flag));
     90 #endif
     91 
     92 struct	linesw linesw[] =
     93 {
     94 	{ ttyopen, ttylclose, ttread, ttwrite, nullioctl,
     95 	  ttyinput, ttstart, ttymodem },		/* 0- termios */
     96 
     97 	{ ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
     98 	  ttyerrinput, ttyerrstart, nullmodem },	/* 1- defunct */
     99 
    100 #ifdef COMPAT_43
    101 	{ ttyopen, ttylclose, ttread, ttwrite, nullioctl,
    102 	  ttyinput, ttstart, ttymodem },		/* 2- old NTTYDISC */
    103 #else
    104 	{ ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
    105 	  ttyerrinput, ttyerrstart, nullmodem },	/* 2- defunct */
    106 #endif
    107 
    108 #if NTB > 0
    109 	{ tbopen, tbclose, tbread, ttyerrio, tbtioctl,
    110 	  tbinput, ttstart, nullmodem },		/* 3- TABLDISC */
    111 #else
    112 	{ ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
    113 	  ttyerrinput, ttyerrstart, nullmodem },
    114 #endif
    115 
    116 #if NSL > 0
    117 	{ slopen, slclose, ttyerrio, ttyerrio, sltioctl,
    118 	  slinput, slstart, nullmodem },		/* 4- SLIPDISC */
    119 #else
    120 	{ ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
    121 	  ttyerrinput, ttyerrstart, nullmodem },
    122 #endif
    123 
    124 #if NPPP > 0
    125 	{ pppopen, pppclose, pppread, pppwrite, ppptioctl,
    126 	  pppinput, pppstart, ttymodem },		/* 5- PPPDISC */
    127 #else
    128 	{ ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
    129 	  ttyerrinput, ttyerrstart, nullmodem },
    130 #endif
    131 };
    132 
    133 int	nlinesw = sizeof (linesw) / sizeof (linesw[0]);
    134 
    135 /*
    136  * Do nothing specific version of line
    137  * discipline specific ioctl command.
    138  */
    139 /*ARGSUSED*/
    140 nullioctl(tp, cmd, data, flags, p)
    141 	struct tty *tp;
    142 	u_long cmd;
    143 	char *data;
    144 	int flags;
    145 	struct proc *p;
    146 {
    147 
    148 #ifdef lint
    149 	tp = tp; data = data; flags = flags; p = p;
    150 #endif
    151 	return (-1);
    152 }
    153