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- /*
- * $Header: /ax/networking:include/sys/tty.h:networking 1.1 $
- * $Source: /ax/networking:include/sys/tty.h: $
- *
- * Copyright (c) 1988 Acorn Computers Ltd., Cambridge, England
- *
- * $Log: tty.h,v $
- * Revision 1.1 95/01/11 10:20:03 kwelton
- * Initial revision
- *
- * Revision 1.3 88/06/17 20:22:05 beta
- * Acorn Unix initial beta version
- *
- */
- /* @(#)tty.h 1.2 87/05/15 3.2/4.3NFSSRC */
- /*
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved. The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
- *
- * @(#)tty.h 7.1 (Berkeley) 6/4/86
- */
-
- #ifdef KERNEL
- #include "ttychars.h"
- #include "ttydev.h"
- #else
- #include <sys/ttychars.h>
- #include <sys/ttydev.h>
- #endif
-
- /*
- * A clist structure is the head of a linked list queue
- * of characters. The characters are stored in blocks
- * containing a link and CBSIZE (param.h) characters.
- * The routines in tty_subr.c manipulate these structures.
- */
- struct clist {
- int c_cc; /* character count */
- char *c_cf; /* pointer to first char */
- char *c_cl; /* pointer to last char */
- };
-
- /*
- * 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 {
- union {
- struct {
- struct clist T_rawq;
- struct clist T_canq;
- } t_t;
- #define t_rawq t_nu.t_t.T_rawq /* raw characters or partial line */
- #define t_canq t_nu.t_t.T_canq /* raw characters or partial line */
- struct {
- struct buf *T_bufp;
- char *T_cp;
- int T_inbuf;
- int T_rec;
- } t_n;
- #define t_bufp t_nu.t_n.T_bufp /* buffer allocated to protocol */
- #define t_cp t_nu.t_n.T_cp /* pointer into the ripped off buffer */
- #define t_inbuf t_nu.t_n.T_inbuf /* number chars in the buffer */
- #define t_rec t_nu.t_n.T_rec /* have a complete record */
- } t_nu;
- struct clist t_outq; /* device */
- int (*t_oproc)(); /* device */
- struct proc *t_rsel; /* tty */
- struct proc *t_wsel;
- caddr_t T_LINEP; /* ### */
- caddr_t t_addr; /* ??? */
- dev_t t_dev; /* device */
- int t_flags; /* some of both */
- int t_state; /* some of both */
- short t_pgrp; /* tty */
- char t_delct; /* tty */
- char t_line; /* glue */
- char t_col; /* tty */
- char t_ispeed, t_ospeed; /* device */
- char t_rocount, t_rocol; /* tty */
- struct ttychars t_chars; /* tty */
- struct winsize t_winsize; /* window size */
- /* be careful of tchars & co. */
- #define t_erase t_chars.tc_erase
- #define t_kill t_chars.tc_kill
- #define t_intrc t_chars.tc_intrc
- #define t_quitc t_chars.tc_quitc
- #define t_startc t_chars.tc_startc
- #define t_stopc t_chars.tc_stopc
- #define t_eofc t_chars.tc_eofc
- #define t_brkc t_chars.tc_brkc
- #define t_suspc t_chars.tc_suspc
- #define t_dsuspc t_chars.tc_dsuspc
- #define t_rprntc t_chars.tc_rprntc
- #define t_flushc t_chars.tc_flushc
- #define t_werasc t_chars.tc_werasc
- #define t_lnextc t_chars.tc_lnextc
- };
-
- #define TTIPRI 28
- #define TTOPRI 29
-
- /* limits */
- #define NSPEEDS 16
- #define TTMASK 15
- #define OBUFSIZ 100
- #define TTYHOG 255
- #ifdef KERNEL
- short tthiwat[NSPEEDS], ttlowat[NSPEEDS];
- #define TTHIWAT(tp) tthiwat[(tp)->t_ospeed&TTMASK]
- #define TTLOWAT(tp) ttlowat[(tp)->t_ospeed&TTMASK]
- extern struct ttychars ttydefaults;
- #endif
-
- /* 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 */
- #define 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_NBIO 0x002000 /* tty in non-blocking mode */
- #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_QUOT 0x020000 /* last character input was \ */
- #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; leave FLUSHO alone */
-
- #define TS_LOCAL (TS_BKSL|TS_QUOT|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
-
- /* EOF tty.h */
-