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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */
- /*-
- * Copyright (c) 1982, 1986, 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.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)tty.h 8.6 (Berkeley) 1/21/94
- */
-
- #ifndef _SYS_TTY_H_
- #define _SYS_TTY_H_
-
- #include <sys/cdefs.h>
-
- #include <sys/termios.h>
- #include <sys/select.h> /* For struct selinfo. */
-
- #ifndef __APPLE__
- /*
- * Clists are character lists, which is a variable length linked list
- * of cblocks, with a count of the number of characters in the list.
- */
- struct clist {
- int c_cc; /* Number of characters in the clist. */
- int c_cbcount; /* Number of cblocks. */
- int c_cbmax; /* Max # cblocks allowed for this clist. */
- int c_cbreserved; /* # cblocks reserved for this clist. */
- char *c_cf; /* Pointer to the first cblock. */
- char *c_cl; /* Pointer to the last cblock. */
- };
- #else /* __APPLE__ */
- /*
- * NetBSD Clists are actually ring buffers. The c_cc, c_cf, c_cl fields have
- * exactly the same behaviour as in true clists.
- * if c_cq is NULL, the ring buffer has no TTY_QUOTE functionality
- * (but, saves memory and cpu time)
- *
- * *DON'T* play with c_cs, c_ce, c_cq, or c_cl outside tty_subr.c!!!
- */
- struct clist {
- int c_cc; /* count of characters in queue */
- int c_cn; /* total ring buffer length */
- u_char *c_cf; /* points to first character */
- u_char *c_cl; /* points to next open character */
- u_char *c_cs; /* start of ring buffer */
- u_char *c_ce; /* c_ce + c_len */
- u_char *c_cq; /* N bits/bytes long, see tty_subr.c */
- };
-
- #ifndef TTYCLSIZE
- #define TTYCLSIZE 1024
- #endif
-
- #endif /* __APPLE__ */
-
- /*
- * Per-tty structure.
- *
- * Should be split in two, into device and tty drivers.
- * Glue could be masks of what to echo and circular buffer
- * (low, high, timeout).
- */
- struct tty {
- struct clist t_rawq; /* Device raw input queue. */
- long t_rawcc; /* Raw input queue statistics. */
- struct clist t_canq; /* Device canonical queue. */
- long t_cancc; /* Canonical queue statistics. */
- struct clist t_outq; /* Device output queue. */
- long t_outcc; /* Output queue statistics. */
- int t_line; /* Interface to device drivers. */
- dev_t t_dev; /* Device. */
- int t_state; /* Device and driver (TS*) state. */
- int t_flags; /* Tty flags. */
- int t_timeout; /* Timeout for ttywait() */
- struct pgrp *t_pgrp; /* Foreground process group. */
- struct session *t_session; /* Enclosing session. */
- struct selinfo t_rsel; /* Tty read/oob select. */
- struct selinfo t_wsel; /* Tty write select. */
- struct termios t_termios; /* Termios state. */
- struct winsize t_winsize; /* Window size. */
- /* Start output. */
- void (*t_oproc) __P((struct tty *));
- /* Stop output. */
- void (*t_stop) __P((struct tty *, int));
- /* Set hardware state. */
- int (*t_param) __P((struct tty *, struct termios *));
- void *t_sc; /* XXX: net/if_sl.c:sl_softc. */
- int t_column; /* Tty output column. */
- int t_rocount, t_rocol; /* Tty. */
- int t_hiwat; /* High water mark. */
- int t_lowat; /* Low water mark. */
- int t_gen; /* Generation number. */
- };
-
- #define t_cc t_termios.c_cc
- #define t_cflag t_termios.c_cflag
- #define t_iflag t_termios.c_iflag
- #define t_ispeed t_termios.c_ispeed
- #define t_lflag t_termios.c_lflag
- #define t_min t_termios.c_min
- #define t_oflag t_termios.c_oflag
- #define t_ospeed t_termios.c_ospeed
- #define t_time t_termios.c_time
-
- #define TTIPRI 25 /* Sleep priority for tty reads. */
- #define TTOPRI 26 /* Sleep priority for tty writes. */
-
- /*
- * User data unfortunately has to be copied through buffers on the way to
- * and from clists. The buffers are on the stack so their sizes must be
- * fairly small.
- */
- #define IBUFSIZ 384 /* Should be >= max value of MIN. */
- #define OBUFSIZ 100
-
- #ifndef TTYHOG
- #define TTYHOG 1024
- #endif
-
- #ifdef KERNEL
- #define TTMAXHIWAT roundup(2048, CBSIZE)
- #define TTMINHIWAT roundup(100, CBSIZE)
- #define TTMAXLOWAT 256
- #define TTMINLOWAT 32
- #endif /* KERNEL */
-
- /* These flags are kept in t_state. */
- #define TS_SO_OLOWAT 0x00001 /* Wake up when output <= low water. */
- #define TS_ASYNC 0x00002 /* Tty in async I/O mode. */
- #define TS_BUSY 0x00004 /* Draining output. */
- #define TS_CARR_ON 0x00008 /* Carrier is present. */
- #define TS_FLUSH 0x00010 /* Outq has been flushed during DMA. */
- #define TS_ISOPEN 0x00020 /* Open has completed. */
- #define TS_TBLOCK 0x00040 /* Further input blocked. */
- #define TS_TIMEOUT 0x00080 /* Wait for output char processing. */
- #define TS_TTSTOP 0x00100 /* Output paused. */
- #ifdef notyet
- #define TS_WOPEN 0x00200 /* Open in progress. */
- #endif
- #define TS_XCLUDE 0x00400 /* Tty requires exclusivity. */
-
- /* State for intra-line fancy editing work. */
- #define TS_BKSL 0x00800 /* State for lowercase \ work. */
- #define TS_CNTTB 0x01000 /* Counting tab width, ignore FLUSHO. */
- #define TS_ERASE 0x02000 /* Within a \.../ for PRTRUB. */
- #define TS_LNCH 0x04000 /* Next character is literal. */
- #define TS_TYPEN 0x08000 /* Retyping suspended input (PENDIN). */
- #define TS_LOCAL (TS_BKSL | TS_CNTTB | TS_ERASE | TS_LNCH | TS_TYPEN)
-
- /* Extras. */
- #define TS_CAN_BYPASS_L_RINT 0x010000 /* Device in "raw" mode. */
- #define TS_CONNECTED 0x020000 /* Connection open. */
- #define TS_SNOOP 0x040000 /* Device is being snooped on. */
- #define TS_SO_OCOMPLETE 0x080000 /* Wake up when output completes. */
- #define TS_ZOMBIE 0x100000 /* Connection lost. */
-
- /* Hardware flow-control-invoked bits. */
- #define TS_CAR_OFLOW 0x200000 /* For MDMBUF (XXX handle in driver). */
- #ifdef notyet
- #define TS_CTS_OFLOW 0x400000 /* For CCTS_OFLOW. */
- #define TS_DSR_OFLOW 0x800000 /* For CDSR_OFLOW. */
- #endif
-
- /* Character type information. */
- #define ORDINARY 0
- #define CONTROL 1
- #define BACKSPACE 2
- #define NEWLINE 3
- #define TAB 4
- #define VTAB 5
- #define RETURN 6
-
- struct speedtab {
- int sp_speed; /* Speed. */
- int sp_code; /* Code. */
- };
-
- /* Modem control commands (driver). */
- #define DMSET 0
- #define DMBIS 1
- #define DMBIC 2
- #define DMGET 3
-
- /* Flags on a character passed to ttyinput. */
- #define TTY_CHARMASK 0x000000ff /* Character mask */
- #define TTY_QUOTE 0x00000100 /* Character quoted */
- #define TTY_ERRORMASK 0xff000000 /* Error mask */
- #define TTY_FE 0x01000000 /* Framing error */
- #define TTY_PE 0x02000000 /* Parity error */
- #define TTY_OE 0x04000000 /* Overrun error */
- #define TTY_BI 0x08000000 /* Break condition */
-
- /* Is tp controlling terminal for p? */
- #define isctty(p, tp) \
- ((p)->p_session == (tp)->t_session && (p)->p_flag & P_CONTROLT)
-
- /* Is p in background of tp? */
- #define isbackground(p, tp) \
- (isctty((p), (tp)) && (p)->p_pgrp != (tp)->t_pgrp)
-
- /* Unique sleep addresses. */
- #define TSA_CARR_ON(tp) ((void *)&(tp)->t_rawq)
- #define TSA_HUP_OR_INPUT(tp) ((void *)&(tp)->t_rawq.c_cf)
- #define TSA_OCOMPLETE(tp) ((void *)&(tp)->t_outq.c_cl)
- #define TSA_OLOWAT(tp) ((void *)&(tp)->t_outq)
- #define TSA_PTC_READ(tp) ((void *)&(tp)->t_outq.c_cf)
- #define TSA_PTC_WRITE(tp) ((void *)&(tp)->t_rawq.c_cl)
- #define TSA_PTS_READ(tp) ((void *)&(tp)->t_canq)
-
- #ifdef KERNEL
- __BEGIN_DECLS
-
- #ifndef __APPLE__
- extern struct tty *constty; /* Temporary virtual console. */
-
- int b_to_q __P((char *cp, int cc, struct clist *q));
- void catq __P((struct clist *from, struct clist *to));
- void clist_alloc_cblocks __P((struct clist *q, int ccmax, int ccres));
- void clist_free_cblocks __P((struct clist *q));
- /* void clist_init __P((void)); */ /* defined in systm.h for main() */
- int getc __P((struct clist *q));
- void ndflush __P((struct clist *q, int cc));
- int ndqb __P((struct clist *q, int flag));
- char *nextc __P((struct clist *q, char *cp, int *c));
- int putc __P((int c, struct clist *q));
- int q_to_b __P((struct clist *q, char *cp, int cc));
- int unputc __P((struct clist *q));
-
- int ttcompat __P((struct tty *tp, int com, caddr_t data, int flag));
- int ttsetcompat __P((struct tty *tp, int *com, caddr_t data, struct termios *term));
- #else /* __APPLE__ */
- int b_to_q __P((u_char *cp, int cc, struct clist *q));
- void catq __P((struct clist *from, struct clist *to));
- void clist_init __P((void));
- int getc __P((struct clist *q));
- void ndflush __P((struct clist *q, int cc));
- int ndqb __P((struct clist *q, int flag));
- u_char *firstc __P((struct clist *clp, int *c));
- u_char *nextc __P((struct clist *q, u_char *cp, int *c));
- int putc __P((int c, struct clist *q));
- int q_to_b __P((struct clist *q, u_char *cp, int cc));
- int unputc __P((struct clist *q));
- int clalloc __P((struct clist *clp, int size, int quot));
- void clfree __P((struct clist *clp));
-
- #endif /* __APPLE__ */
-
- void termioschars __P((struct termios *t));
- int tputchar __P((int c, struct tty *tp));
- #ifndef __APPLE__
- int ttioctl __P((struct tty *tp, int com, void *data, int flag));
- #else
- int ttioctl __P((struct tty *tp, u_long com, caddr_t data, int flag,
- struct proc *p));
- #endif
- int ttread __P((struct tty *tp, struct uio *uio, int flag));
- void ttrstrt __P((void *tp));
- int ttyselect __P((struct tty *tp, int rw, void * wql, struct proc *p));
- int ttselect __P((dev_t dev, int rw, void * wql, struct proc *p));
- void ttsetwater __P((struct tty *tp));
- int ttspeedtab __P((int speed, struct speedtab *table));
- int ttstart __P((struct tty *tp));
- void ttwakeup __P((struct tty *tp));
- int ttwrite __P((struct tty *tp, struct uio *uio, int flag));
- void ttwwakeup __P((struct tty *tp));
- void ttyblock __P((struct tty *tp));
- void ttychars __P((struct tty *tp));
- int ttycheckoutq __P((struct tty *tp, int wait));
- int ttyclose __P((struct tty *tp));
- void ttyflush __P((struct tty *tp, int rw));
- void ttyinfo __P((struct tty *tp));
- int ttyinput __P((int c, struct tty *tp));
- int ttylclose __P((struct tty *tp, int flag));
- int ttymodem __P((struct tty *tp, int flag));
- int ttyopen __P((dev_t device, struct tty *tp));
- int ttysleep __P((struct tty *tp,
- void *chan, int pri, char *wmesg, int timeout));
- int ttywait __P((struct tty *tp));
- struct tty *ttymalloc __P((void));
- void ttyfree __P((struct tty *));
-
- __END_DECLS
-
- #endif /* KERNEL */
-
- #endif /* !_SYS_TTY_H_ */
-