root/kern/tty_conf.c

DEFINITIONS

1. nullioctl

    1 /*      $OpenBSD: tty_conf.c,v 1.11 2006/08/03 16:13:24 mbalmer Exp $   */
    2 /*      $NetBSD: tty_conf.c,v 1.18 1996/05/19 17:17:55 jonathan Exp $   */
    4 /*-
    5  * Copyright (c) 1982, 1986, 1991, 1993
    6  *      The Regents of the University of California.  All rights reserved.
    7  * (c) UNIX System Laboratories, Inc.
    8  * All or some portions of this file are derived from material licensed
    9  * to the University of California by American Telephone and Telegraph
   10  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   11  * the permission of UNIX System Laboratories, Inc.
   12  *
   13  * Redistribution and use in source and binary forms, with or without
   14  * modification, are permitted provided that the following conditions
   15  * are met:
   16  * 1. Redistributions of source code must retain the above copyright
   17  *    notice, this list of conditions and the following disclaimer.
   18  * 2. Redistributions in binary form must reproduce the above copyright
   19  *    notice, this list of conditions and the following disclaimer in the
   20  *    documentation and/or other materials provided with the distribution.
   21  * 3. Neither the name of the University nor the names of its contributors
   22  *    may be used to endorse or promote products derived from this software
   23  *    without specific prior written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   35  * SUCH DAMAGE.
   36  *
   37  *      @(#)tty_conf.c  8.4 (Berkeley) 1/21/94
   38  */
   40 #include <sys/param.h>
   41 #include <sys/systm.h>
   42 #include <sys/ioctl.h>
   43 #include <sys/proc.h>
   44 #include <sys/tty.h>
   45 #include <sys/conf.h>
   47 #define ttynodisc ((int (*)(dev_t, struct tty *))enodev)
   48 #define ttyerrclose ((int (*)(struct tty *, int flags))enodev)
   49 #define ttyerrio ((int (*)(struct tty *, struct uio *, int))enodev)
   50 #define ttyerrinput ((int (*)(int c, struct tty *))enodev)
   51 #define ttyerrstart ((int (*)(struct tty *))enodev)
   53 int     nullioctl(struct tty *, u_long, caddr_t, int, struct proc *);
   55 #include "sl.h"
   56 #if NSL > 0
   57 int     slopen(dev_t dev, struct tty *tp);
   58 int     slclose(struct tty *tp, int flags);
   59 int     sltioctl(struct tty *tp, u_long cmd, caddr_t data,
   60                         int flag, struct proc *p);
   61 int     slinput(int c, struct tty *tp);
   62 int     slstart(struct tty *tp);
   63 #endif
   65 #include "ppp.h"
   66 #if NPPP > 0
   67 int     pppopen(dev_t dev, struct tty *tp);
   68 int     pppclose(struct tty *tp, int flags);
   69 int     ppptioctl(struct tty *tp, u_long cmd, caddr_t data,
   70                         int flag, struct proc *p);
   71 int     pppinput(int c, struct tty *tp);
   72 int     pppstart(struct tty *tp);
   73 int     pppread(struct tty *tp, struct uio *uio, int flag);
   74 int     pppwrite(struct tty *tp, struct uio *uio, int flag);
   75 #endif
   77 #include "strip.h"
   78 #if NSTRIP > 0
   79 int     stripopen(dev_t dev, struct tty *tp);
   80 int     stripclose(struct tty *tp, int flags);
   81 int     striptioctl(struct tty *tp, u_long cmd, caddr_t data,
   82                         int flag, struct proc *p);
   83 int     stripinput(int c, struct tty *tp);
   84 int     stripstart(struct tty *tp);
   85 #endif
   87 #include "nmea.h"
   88 #if NNMEA > 0
   89 int     nmeaopen(dev_t, struct tty *);
   90 int     nmeaclose(struct tty *, int);
   91 int     nmeainput(int, struct tty *);
   92 #endif
   94 struct  linesw linesw[] =
   95 {
   96         { ttyopen, ttylclose, ttread, ttwrite, nullioctl,
ttyinput, ttstart, ttymodem },                /* 0- termios */
   99         { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
ttyerrinput, ttyerrstart, nullmodem },        /* 1- defunct */
  102 #if defined(COMPAT_43) || defined(COMPAT_FREEBSD) || defined(COMPAT_BSDOS)
  103         { ttyopen, ttylclose, ttread, ttwrite, nullioctl,
ttyinput, ttstart, ttymodem },                /* 2- old NTTYDISC */
  105 #else
  106         { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
ttyerrinput, ttyerrstart, nullmodem },        /* 2- defunct */
  108 #endif
  110         /* 3- TABLDISC (defunct) */
  111         { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
ttyerrinput, ttyerrstart, nullmodem },
  114 #if NSL > 0
  115         { slopen, slclose, ttyerrio, ttyerrio, sltioctl,
slinput, slstart, nullmodem },                /* 4- SLIPDISC */
  117 #else
  118         { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
ttyerrinput, ttyerrstart, nullmodem },
  120 #endif
  122 #if NPPP > 0
  123         { pppopen, pppclose, pppread, pppwrite, ppptioctl,
pppinput, pppstart, ttymodem },               /* 5- PPPDISC */
  125 #else
  126         { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
ttyerrinput, ttyerrstart, nullmodem },
  128 #endif
  130 #if NSTRIP > 0
  131         { stripopen, stripclose, ttyerrio, ttyerrio, striptioctl,
stripinput, stripstart, nullmodem },          /* 6- STRIPDISC */
  133 #else
  134         { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
ttyerrinput, ttyerrstart, nullmodem },
  136 #endif
  138 #if NNMEA > 0
  139         { nmeaopen, nmeaclose, ttread, ttwrite, nullioctl,
nmeainput, ttstart, ttymodem },               /* 7- NMEADISC */
  141 #else
  142         { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
ttyerrinput, ttyerrstart, nullmodem },
  144 #endif
  145 };
  147 int     nlinesw = sizeof (linesw) / sizeof (linesw[0]);
  149 /*
  150  * Do nothing specific version of line
  151  * discipline specific ioctl command.
  152  */
  153 /*ARGSUSED*/
  154 int
nullioctl(struct tty *tp, u_long cmd, char *data, int flags, struct proc *p)
  156 {
  158 #ifdef lint
tp = tp; data = data; flags = flags; p = p;
  160 #endif
  161         return (-1);
  162 }