| version 1.1.1.1, 1993/03/21 09:45:37 |
version 1.1.1.2, 1998/03/01 02:11:12 |
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| revision 1.1.1.1 intentionally removed |
/*- |
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* Copyright (c) 1982, 1986, 1993 |
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* The Regents of the University of California. All rights reserved. |
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* (c) UNIX System Laboratories, Inc. |
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* All or some portions of this file are derived from material licensed |
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* to the University of California by American Telephone and Telegraph |
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with |
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* the permission of UNIX System Laboratories, Inc. |
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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 8.6 (Berkeley) 1/21/94 |
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*/ |
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|
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#include <sys/termios.h> |
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#include <sys/select.h> /* For struct selinfo. */ |
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|
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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; /* Number of characters in the clist. */ |
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char *c_cf; /* Pointer to the first cblock. */ |
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char *c_cl; /* Pointer to the last cblock. */ |
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}; |
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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; /* Device raw input queue. */ |
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long t_rawcc; /* Raw input queue statistics. */ |
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struct clist t_canq; /* Device canonical queue. */ |
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long t_cancc; /* Canonical queue statistics. */ |
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struct clist t_outq; /* Device output queue. */ |
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long t_outcc; /* Output queue statistics. */ |
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char t_line; /* Interface to device drivers. */ |
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dev_t t_dev; /* Device. */ |
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int t_state; /* Device and driver (TS*) state. */ |
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int t_flags; /* Tty flags. */ |
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struct pgrp *t_pgrp; /* Foreground process group. */ |
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struct session *t_session; /* Enclosing session. */ |
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struct selinfo t_rsel; /* Tty read/oob select. */ |
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struct selinfo t_wsel; /* Tty write select. */ |
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struct termios t_termios; /* Termios state. */ |
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struct winsize t_winsize; /* Window size. */ |
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/* Start output. */ |
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void (*t_oproc) __P((struct tty *)); |
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/* Stop output. */ |
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void (*t_stop) __P((struct tty *, int)); |
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/* Set hardware state. */ |
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int (*t_param) __P((struct tty *, struct termios *)); |
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void *t_sc; /* XXX: net/if_sl.c:sl_softc. */ |
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short t_column; /* Tty output column. */ |
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short t_rocount, t_rocol; /* Tty. */ |
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short t_hiwat; /* High water mark. */ |
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short t_lowat; /* Low water mark. */ |
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short t_gen; /* Generation number. */ |
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}; |
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|
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#define t_cc t_termios.c_cc |
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#define t_cflag t_termios.c_cflag |
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#define t_iflag t_termios.c_iflag |
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#define t_ispeed t_termios.c_ispeed |
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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_oflag t_termios.c_oflag |
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#define t_ospeed t_termios.c_ospeed |
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#define t_time t_termios.c_time |
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|
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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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|
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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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|
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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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#endif |
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|
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/* These flags are kept in t_state. */ |
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#define TS_ASLEEP 0x00001 /* Process waiting for tty. */ |
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#define TS_ASYNC 0x00002 /* Tty in async I/O mode. */ |
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#define TS_BUSY 0x00004 /* Draining output. */ |
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#define TS_CARR_ON 0x00008 /* Carrier is present. */ |
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#define TS_FLUSH 0x00010 /* Outq has been flushed during DMA. */ |
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#define TS_ISOPEN 0x00020 /* Open has completed. */ |
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#define TS_TBLOCK 0x00040 /* Further input blocked. */ |
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#define TS_TIMEOUT 0x00080 /* Wait for output char processing. */ |
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#define TS_TTSTOP 0x00100 /* Output paused. */ |
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#define TS_WOPEN 0x00200 /* Open in progress. */ |
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#define TS_XCLUDE 0x00400 /* Tty requires exclusivity. */ |
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|
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/* State for intra-line fancy editing work. */ |
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#define TS_BKSL 0x00800 /* State for lowercase \ work. */ |
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#define TS_CNTTB 0x01000 /* Counting tab width, ignore FLUSHO. */ |
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#define TS_ERASE 0x02000 /* Within a \.../ for PRTRUB. */ |
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#define TS_LNCH 0x04000 /* Next character is literal. */ |
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#define TS_TYPEN 0x08000 /* Retyping suspended input (PENDIN). */ |
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#define TS_LOCAL (TS_BKSL | TS_CNTTB | TS_ERASE | TS_LNCH | TS_TYPEN) |
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|
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/* Character type information. */ |
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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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|
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struct speedtab { |
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int sp_speed; /* Speed. */ |
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int sp_code; /* Code. */ |
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}; |
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|
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/* Modem control commands (driver). */ |
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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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|
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/* Flags on a character passed to ttyinput. */ |
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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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#define isctty(p, tp) \ |
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((p)->p_session == (tp)->t_session && (p)->p_flag & P_CONTROLT) |
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|
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/* Is p in background of tp? */ |
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#define isbackground(p, tp) \ |
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(isctty((p), (tp)) && (p)->p_pgrp != (tp)->t_pgrp) |
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|
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#ifdef KERNEL |
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extern struct ttychars ttydefaults; |
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|
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/* Symbolic sleep message strings. */ |
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extern char ttyin[], ttyout[], ttopen[], ttclos[], ttybg[], ttybuf[]; |
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|
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int b_to_q __P((char *cp, int cc, struct clist *q)); |
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void catq __P((struct clist *from, struct clist *to)); |
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void clist_init __P((void)); |
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int getc __P((struct clist *q)); |
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void ndflush __P((struct clist *q, int cc)); |
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int ndqb __P((struct clist *q, int flag)); |
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char *nextc __P((struct clist *q, char *cp, int *c)); |
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int putc __P((int c, struct clist *q)); |
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int q_to_b __P((struct clist *q, char *cp, int cc)); |
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int unputc __P((struct clist *q)); |
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|
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int nullmodem __P((struct tty *tp, int flag)); |
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int tputchar __P((int c, struct tty *tp)); |
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int ttioctl __P((struct tty *tp, int com, void *data, int flag)); |
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int ttread __P((struct tty *tp, struct uio *uio, int flag)); |
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void ttrstrt __P((void *tp)); |
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int ttselect __P((dev_t device, int rw, struct proc *p)); |
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void ttsetwater __P((struct tty *tp)); |
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int ttspeedtab __P((int speed, struct speedtab *table)); |
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int ttstart __P((struct tty *tp)); |
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void ttwakeup __P((struct tty *tp)); |
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int ttwrite __P((struct tty *tp, struct uio *uio, int flag)); |
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void ttychars __P((struct tty *tp)); |
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int ttycheckoutq __P((struct tty *tp, int wait)); |
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int ttyclose __P((struct tty *tp)); |
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void ttyflush __P((struct tty *tp, int rw)); |
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void ttyinfo __P((struct tty *tp)); |
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int ttyinput __P((int c, struct tty *tp)); |
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int ttylclose __P((struct tty *tp, int flag)); |
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int ttymodem __P((struct tty *tp, int flag)); |
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int ttyopen __P((dev_t device, struct tty *tp)); |
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int ttyoutput __P((int c, struct tty *tp)); |
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void ttypend __P((struct tty *tp)); |
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void ttyretype __P((struct tty *tp)); |
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void ttyrub __P((int c, struct tty *tp)); |
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int ttysleep __P((struct tty *tp, |
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void *chan, int pri, char *wmesg, int timeout)); |
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int ttywait __P((struct tty *tp)); |
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int ttywflush __P((struct tty *tp)); |
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#endif |
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