home *** CD-ROM | disk | FTP | other *** search
- /*
- * Mach Operating System
- * Copyright (c) 1992 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
- /*
- * HISTORY
- * $Log: tty.h,v $
- * Revision 2.1 92/04/21 17:16:54 rwd
- * BSDSS
- *
- *
- */
-
- /*-
- * Copyright (c) 1982, 1986 The Regents of the University of California.
- * All rights reserved.
- *
- * 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 7.10 (Berkeley) 6/26/91
- */
-
- #include <sys/termios.h>
-
- #ifdef KERNEL
- #include <uxkern/import_mach.h>
- #endif KERNEL
-
- /*
- * Clists are character lists, which is a variable length linked list
- * of cblocks, wiht a count of the number of characters in the list.
- */
- struct clist {
- int c_cc; /* count of characters in queue */
- char *c_cf; /* first character/cblock */
- char *c_cl; /* last chararacter/cblock */
- };
-
- /*
- * 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; /* queues */
- struct clist t_canq;
- struct clist t_outq;
- int (*t_oproc)(); /* device */
- int (*t_param)(); /* device */
- struct proc *t_rsel; /* tty */
- struct proc *t_wsel;
- caddr_t T_LINEP; /* XXX */
- caddr_t t_addr; /* ??? */
- mach_port_t t_device_port;
- mach_port_t t_reply_port;
- dev_t t_dev; /* device */
- int t_flags; /* (compat) some of both */
- int t_state; /* some of both */
- struct session *t_session; /* tty */
- struct pgrp *t_pgrp; /* foreground process group */
- char t_line; /* glue */
- short t_col; /* tty */
- short t_rocount, t_rocol; /* tty */
- short t_hiwat; /* hi water mark */
- short t_lowat; /* low water mark */
- struct winsize t_winsize; /* window size */
- struct termios t_termios; /* termios state */
- #define t_iflag t_termios.c_iflag
- #define t_oflag t_termios.c_oflag
- #define t_cflag t_termios.c_cflag
- #define t_lflag t_termios.c_lflag
- #define t_min t_termios.c_min
- #define t_time t_termios.c_time
- #define t_cc t_termios.c_cc
- #define t_ispeed t_termios.c_ispeed
- #define t_ospeed t_termios.c_ospeed
- long t_cancc; /* stats */
- long t_rawcc;
- long t_outcc;
- short t_gen; /* generation number */
- };
-
- #define TTIPRI 25 /* sleep priority for tty reads */
- #define TTOPRI 26 /* sleep priority for tty writes */
-
- #define TTMASK 15
- #define OBUFSIZ 100
- #define TTYHOG 1024
-
- #ifdef KERNEL
- #define TTMAXHIWAT roundup(2048, CBSIZE)
- #define TTMINHIWAT roundup(100, CBSIZE)
- #define TTMAXLOWAT 256
- #define TTMINLOWAT 32
- extern struct ttychars ttydefaults;
- #endif /* KERNEL */
-
- /* internal state bits */
- #define TS_TIMEOUT 0x000001 /* delay timeout in progress */
- #define TS_WOPEN 0x000002 /* waiting for open to complete */
- #define TS_ISOPEN 0x000004 /* device is open */
- #define TS_FLUSH 0x000008 /* outq has been flushed during DMA */
- #define TS_CARR_ON 0x000010 /* software copy of carrier-present */
- #define TS_BUSY 0x000020 /* output in progress */
- #define TS_ASLEEP 0x000040 /* wakeup when output done */
- #define TS_XCLUDE 0x000080 /* exclusive-use flag against open */
- #define TS_TTSTOP 0x000100 /* output stopped by ctl-s */
- /* was TS_HUPCLS 0x000200 * hang up upon last close */
- #define TS_TBLOCK 0x000400 /* tandem queue blocked */
- #define TS_RCOLL 0x000800 /* collision in read select */
- #define TS_WCOLL 0x001000 /* collision in write select */
- #define TS_ASYNC 0x004000 /* tty in async i/o mode */
- /* state for intra-line fancy editing work */
- #define TS_BKSL 0x010000 /* state for lowercase \ work */
- #define TS_ERASE 0x040000 /* within a \.../ for PRTRUB */
- #define TS_LNCH 0x080000 /* next character is literal */
- #define TS_TYPEN 0x100000 /* retyping suspended input (PENDIN) */
- #define TS_CNTTB 0x200000 /* counting tab width, ignore FLUSHO */
-
- #define TS_ONDELAY 0x400000
- #define TS_RQUEUED 0x800000
-
- #define TS_LOCAL (TS_BKSL|TS_ERASE|TS_LNCH|TS_TYPEN|TS_CNTTB)
-
- /* define partab character types */
- #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;
- int sp_code;
- };
- /*
- * Flags on 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 or BREAK condition */
- #define TTY_PE 0x02000000 /* Parity error */
-
- /*
- * Is tp controlling terminal for p
- */
- #define isctty(p, tp) ((p)->p_session == (tp)->t_session && \
- (p)->p_flag&SCTTY)
- /*
- * Is p in background of tp
- */
- #define isbackground(p, tp) (isctty((p), (tp)) && \
- (p)->p_pgrp != (tp)->t_pgrp)
- /*
- * Modem control commands (driver).
- */
- #define DMSET 0
- #define DMBIS 1
- #define DMBIC 2
- #define DMGET 3
-
- #ifdef KERNEL
- /* symbolic sleep message strings */
- extern char ttyin[], ttyout[], ttopen[], ttclos[], ttybg[], ttybuf[];
- #endif
-
- #define TTHIWAT(tp) (tp)->t_hiwat
- #define TTLOWAT(tp) (tp)->t_lowat
-