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175 lines
6.9 KiB
C
175 lines
6.9 KiB
C
/*-
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* Copyright (c) 1982, 1986 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)tty.h 7.10 (Berkeley) 6/26/91
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*/
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#include <sys/termios.h>
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/*
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* Clists are character lists, which is a variable length linked list
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* of cblocks, with a count of the number of characters in the list.
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*/
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struct clist {
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int c_cc; /* count of characters in queue */
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char *c_cf; /* first character/cblock */
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char *c_cl; /* last chararacter/cblock */
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};
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/*
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* Per-tty structure.
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*
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* Should be split in two, into device and tty drivers.
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* Glue could be masks of what to echo and circular buffer
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* (low, high, timeout).
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*/
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struct tty {
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struct clist t_rawq; /* queues */
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struct clist t_canq;
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struct clist t_outq;
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int (*t_oproc)(); /* device */
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int (*t_param)(); /* device */
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struct proc *t_rsel; /* tty */
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struct proc *t_wsel;
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caddr_t T_LINEP; /* XXX */
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caddr_t t_addr; /* ??? */
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dev_t t_dev; /* device */
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int __ALIGN2__ t_flags; /* (compat) some of both */
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int __ALIGN2__ t_state; /* some of both */
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struct session *__ALIGN2__ t_session;/* tty */
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struct pgrp *__ALIGN2__ t_pgrp;/* foreground process group */
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char t_line; /* glue */
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short t_col; /* tty */
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short t_rocount, t_rocol; /* tty */
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short t_hiwat; /* hi water mark */
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short t_lowat; /* low water mark */
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struct winsize __ALIGN2__ t_winsize;/* window size */
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struct termios __ALIGN2__ t_termios;/* termios state */
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#define t_iflag t_termios.c_iflag
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#define t_oflag t_termios.c_oflag
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#define t_cflag t_termios.c_cflag
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#define t_lflag t_termios.c_lflag
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#define t_min t_termios.c_min
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#define t_time t_termios.c_time
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#define t_cc t_termios.c_cc
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#define t_ispeed t_termios.c_ispeed
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#define t_ospeed t_termios.c_ospeed
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long __ALIGN2__ t_cancc; /* stats */
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long __ALIGN2__ t_rawcc;
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long __ALIGN2__ t_outcc;
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short t_gen; /* generation number */
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} __PACKED__;
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#define TTIPRI 25 /* sleep priority for tty reads */
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#define TTOPRI 26 /* sleep priority for tty writes */
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#define TTMASK 15
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#define OBUFSIZ 100
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#define TTYHOG 1024
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#ifdef _KERNEL
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#define TTMAXHIWAT roundup(2048, CBSIZE)
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#define TTMINHIWAT roundup(100, CBSIZE)
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#define TTMAXLOWAT 256
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#define TTMINLOWAT 32
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extern struct ttychars ttydefaults;
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#endif /* _KERNEL */
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/* internal state bits */
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#define TS_TIMEOUT 0x000001 /* delay timeout in progress */
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#define TS_WOPEN 0x000002 /* waiting for open to complete */
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#define TS_ISOPEN 0x000004 /* device is open */
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#define TS_FLUSH 0x000008 /* outq has been flushed during DMA */
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#define TS_CARR_ON 0x000010 /* software copy of carrier-present */
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#define TS_BUSY 0x000020 /* output in progress */
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#define TS_ASLEEP 0x000040 /* wakeup when output done */
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#define TS_XCLUDE 0x000080 /* exclusive-use flag against open */
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#define TS_TTSTOP 0x000100 /* output stopped by ctl-s */
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/* was TS_HUPCLS 0x000200 * hang up upon last close */
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#define TS_TBLOCK 0x000400 /* tandem queue blocked */
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#define TS_RCOLL 0x000800 /* collision in read select */
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#define TS_WCOLL 0x001000 /* collision in write select */
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#define TS_ASYNC 0x004000 /* tty in async i/o mode */
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/* state for intra-line fancy editing work */
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#define TS_BKSL 0x010000 /* state for lowercase \ work */
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#define TS_ERASE 0x040000 /* within a \.../ for PRTRUB */
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#define TS_LNCH 0x080000 /* next character is literal */
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#define TS_TYPEN 0x100000 /* retyping suspended input (PENDIN) */
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#define TS_CNTTB 0x200000 /* counting tab width, ignore FLUSHO */
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#define TS_LOCAL (TS_BKSL|TS_ERASE|TS_LNCH|TS_TYPEN|TS_CNTTB)
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/* define partab character types */
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#define ORDINARY 0
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#define CONTROL 1
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#define BACKSPACE 2
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#define NEWLINE 3
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#define TAB 4
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#define VTAB 5
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#define RETURN 6
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struct speedtab {
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int sp_speed;
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int sp_code;
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};
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/*
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* Flags on character passed to ttyinput
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*/
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#define TTY_CHARMASK 0x000000ff /* Character mask */
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#define TTY_QUOTE 0x00000100 /* Character quoted */
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#define TTY_ERRORMASK 0xff000000 /* Error mask */
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#define TTY_FE 0x01000000 /* Framing error or BREAK condition */
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#define TTY_PE 0x02000000 /* Parity error */
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/*
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* Is tp controlling terminal for p
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*/
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#define isctty(p, tp) ((p)->p_session == (tp)->t_session && \
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(p)->p_flag&SCTTY)
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/*
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* Is p in background of tp
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*/
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#define isbackground(p, tp) (isctty((p), (tp)) && \
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(p)->p_pgrp != (tp)->t_pgrp)
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/*
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* Modem control commands (driver).
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*/
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#define DMSET 0
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#define DMBIS 1
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#define DMBIC 2
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#define DMGET 3
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#ifdef _KERNEL
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/* symbolic sleep message strings */
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extern char ttyin[], ttyout[], ttopen[], ttclos[], ttybg[], ttybuf[];
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#endif
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