4.3BSD-Reno/src/sys/kern/tty_conf.c

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)tty_conf.c	7.4 (Berkeley) 5/1/89
 */

#include "param.h"
#include "systm.h"
#include "buf.h"
#include "ioctl.h"
#include "tty.h"
#include "conf.h"

int	nodev();
int	nulldev();

int	ttyopen(),ttylclose(),ttread(),ttwrite(),nullioctl(),ttstart();
int	ttymodem(), nullmodem(), ttyinput();

int	ottyopen(), ottylclose(), ottread(), ottwrite();
int	ottyinput(), ottstart(), ottymodem();

#include "tb.h"
#if NTB > 0
int	tbopen(),tbclose(),tbread(),tbinput(),tbioctl();
#endif
#include "sl.h"
#if NSL > 0
int	slopen(),slclose(),slinput(),sltioctl(),slstart();
#endif


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

	nodev, nodev, nodev, nodev, nodev,		/* 1- defunct */
	nodev, nodev, nodev, nodev, nodev,

	nodev, nodev, nodev, nodev, nodev,		/* 2- defunct */
	nodev, nodev, nodev, nodev, nodev,
#if NTB > 0
	tbopen, tbclose, tbread, nodev, tbioctl,
	tbinput, nodev, nulldev, ttstart, nullmodem,	/* 3- TABLDISC */
#else
	nodev, nodev, nodev, nodev, nodev,
	nodev, nodev, nodev, nodev, nodev,
#endif
#if NSL > 0
	slopen, slclose, nodev, nodev, sltioctl,
	slinput, nodev, nulldev, slstart, nullmodem,	/* 4- SLIPDISC */
#else
	nodev, nodev, nodev, nodev, nodev,
	nodev, nodev, nodev, nodev, nodev,
#endif
};

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

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

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