usr/src/sys/kern/tty_conf.c

/*-
 * Copyright (c) 1982, 1986, 1991, 1993
 *      The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)tty_conf.c  8.4 (Berkeley) %G%
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/tty.h>
#include <sys/conf.h>

#define ttynodisc ((int (*) __P((dev_t, struct tty *)))enodev)
#define ttyerrclose ((int (*) __P((struct tty *, int flags)))enodev)
#define ttyerrio ((int (*) __P((struct tty *, struct uio *, int)))enodev)
#define ttyerrinput ((int (*) __P((int c, struct tty *)))enodev)
#define ttyerrstart ((int (*) __P((struct tty *)))enodev)

int     nullioctl __P((struct tty *tp, int cmd, caddr_t data,
                        int flag, struct proc *p));

#include "tb.h"
#if NTB > 0
int     tbopen __P((dev_t dev, struct tty *tp));
int     tbclose __P((struct tty *tp, int flags));
int     tbread __P((struct tty *, struct uio *, int flags));
int     tbioctl __P((struct tty *tp, int cmd, caddr_t data,
                        int flag, struct proc *p));
int     tbinput __P((int c, struct tty *tp));
#endif

#include "sl.h"
#if NSL > 0
int     slopen __P((dev_t dev, struct tty *tp));
int     slclose __P((struct tty *tp, int flags));
int     sltioctl __P((struct tty *tp, int cmd, caddr_t data,
                        int flag, struct proc *p));
int     slinput __P((int c, struct tty *tp));
int     slstart __P((struct tty *tp));
#endif


struct  linesw linesw[] =
{
        { ttyopen, ttylclose, ttread, ttwrite, nullioctl,
          ttyinput, ttstart, ttymodem },                /* 0- termios */

        { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
          ttyerrinput, ttyerrstart, nullmodem },        /* 1- defunct */

        { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
          ttyerrinput, ttyerrstart, nullmodem },        /* 2- defunct */

#if NTB > 0
        { tbopen, tbclose, tbread, enodev, tbioctl,
          tbinput, ttstart, nullmodem },                /* 3- TABLDISC */
#else
        { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
          ttyerrinput, ttyerrstart, nullmodem },
#endif

#if NSL > 0
        { slopen, slclose, ttyerrio, ttyerrio, sltioctl,
          slinput, slstart, nullmodem },                /* 4- SLIPDISC */
#else
        { ttynodisc, ttyerrclose, ttyerrio, ttyerrio, nullioctl,
          ttyerrinput, ttyerrstart, nullmodem },
#endif
};

int     nlinesw = sizeof (linesw) / sizeof (linesw[0]);

/*
 * Do nothing specific version of line
 * discipline specific ioctl command.
 */
/*ARGSUSED*/
nullioctl(tp, cmd, data, flags, p)
        struct tty *tp;
        int cmd;
        char *data;
        int flags;
        struct proc *p;
{

#ifdef lint
        tp = tp; data = data; flags = flags; p = p;
#endif
        return (-1);
}