describe ap (Kirk); delete lfs_mntinvalbuf, lfs_vinvalbuf, add

[unix-history] / usr / src / sys / kern / tty_conf.c

/*-
* Copyright (c) 1982, 1986, 1991 The Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*
*      @(#)tty_conf.c  7.8 (Berkeley) %G%
*/

#include "param.h"
#include "systm.h"
#include "buf.h"
#include "ioctl.h"
#include "proc.h"
#include "tty.h"
#include "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     ttyopen __P((dev_t dev, struct tty *tp));
int     ttylclose __P((struct tty *tp, int flags));
int     ttread __P((struct tty *, struct uio *, int flags));
int     ttwrite __P((struct tty *, struct uio *, int flags));
int     nullioctl __P((struct tty *tp, int cmd, caddr_t data,
                       int flag, struct proc *p));
int     ttyinput __P((int c, struct tty *tp));
int     ttstart __P((struct tty *tp));
int     ttymodem __P((struct tty *tp, int flags));
int     nullmodem __P((struct tty *tp, int flags));

#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     nldisp = 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);
}