2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Poul-Henning Kamp. 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.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
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 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)conf.h 8.5 (Berkeley) 1/9/95
40 #ifndef _SYS_LINEDISC_H_
41 #define _SYS_LINEDISC_H_
47 typedef int l_open_t(struct cdev *dev, struct tty *tp);
48 typedef int l_close_t(struct tty *tp, int flag);
49 typedef int l_read_t(struct tty *tp, struct uio *uio, int flag);
50 typedef int l_write_t(struct tty *tp, struct uio *uio, int flag);
51 typedef int l_ioctl_t(struct tty *tp, u_long cmd, caddr_t data,
52 int flag, struct thread *td);
53 typedef int l_rint_t(int c, struct tty *tp);
54 typedef int l_start_t(struct tty *tp);
55 typedef int l_modem_t(struct tty *tp, int flag);
58 * Line discipline switch table
71 extern struct linesw *linesw[];
74 int ldisc_register(int , struct linesw *);
75 void ldisc_deregister(int);
76 #define LDISC_LOAD -1 /* Loadable line discipline */
80 l_ioctl_t l_nullioctl;
83 ttyld_open(struct tty *tp, struct cdev *dev)
86 return ((*linesw[tp->t_line]->l_open)(dev, tp));
90 ttyld_close(struct tty *tp, int flag)
93 return ((*linesw[tp->t_line]->l_close)(tp, flag));
97 ttyld_read(struct tty *tp, struct uio *uio, int flag)
100 return ((*linesw[tp->t_line]->l_read)(tp, uio, flag));
104 ttyld_write(struct tty *tp, struct uio *uio, int flag)
107 return ((*linesw[tp->t_line]->l_write)(tp, uio, flag));
111 ttyld_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag,
115 return ((*linesw[tp->t_line]->l_ioctl)(tp, cmd, data, flag, td));
119 ttyld_rint(struct tty *tp, int c)
122 return ((*linesw[tp->t_line]->l_rint)(c, tp));
126 ttyld_start(struct tty *tp)
129 return ((*linesw[tp->t_line]->l_start)(tp));
133 ttyld_modem(struct tty *tp, int flag)
136 return ((*linesw[tp->t_line]->l_modem)(tp, flag));
141 #endif /* !_SYS_LINEDISC_H_ */