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/*
* Mach Operating System
* Copyright (c) 1987 Carnegie-Mellon University
* All rights reserved. The CMU software License Agreement specifies
* the terms and conditions for use and redistribution.
*/
/*
* 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
*/
/*HISTORY
* 7-Jan-93 Mac Gillon (mgillon) at NeXT
* Integrated POSIX support
*/
#ifndef _SYS_TTY_H_
#define _SYS_TTY_H_
#import <sys/types.h>
#import <sys/ttychars.h>
#import <sys/ttydev.h>
#import <sys/ioctl.h>
/*
* 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 */
int t_spec[8]; /* cooked mode accelerator */
void *t_ldisc_data; /* for custom line disciplines */
/* be careful of tchars & co. */
#ifndef NO_T_CHARS_DEFINES
#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
#endif
};
#define TTIPRI 28
#define TTOPRI 29
/* limits */
#define NSPEEDS 32
#define TTMASK 31
#define OBUFSIZ 100
#ifdef KERNEL
short tthiwat[NSPEEDS], ttlowat[NSPEEDS], tthog[NSPEEDS];
#define TTHIWAT(tp) tthiwat[(tp)->t_ospeed&TTMASK]
#define TTLOWAT(tp) ttlowat[(tp)->t_ospeed&TTMASK]
#define TTYHOG(tp) 1024
extern struct ttychars ttydefaults;
#endif
/* internal state bits */
#define TS_TIMEOUT 0x00000001 /* delay timeout in progress */
#define TS_WOPEN 0x00000002 /* waiting for open to complete */
#define TS_ISOPEN 0x00000004 /* device is open */
#define TS_FLUSH 0x00000008 /* outq has been flushed during DMA */
#define TS_CARR_ON 0x00000010 /* software copy of carrier-present */
#define TS_BUSY 0x00000020 /* output in progress */
#define TS_ASLEEP 0x00000040 /* wakeup when output done */
#define TS_XCLUDE 0x00000080 /* exclusive-use flag against open */
#define TS_TTSTOP 0x00000100 /* output stopped by ctl-s */
#define TS_HUPCLS 0x00000200 /* hang up upon last close */
#define TS_TBLOCK 0x00000400 /* tandem queue blocked */
#define TS_RCOLL 0x00000800 /* collision in read select */
#define TS_WCOLL 0x00001000 /* collision in write select */
#define TS_NBIO 0x00002000 /* tty in non-blocking mode */
#define TS_ASYNC 0x00004000 /* tty in async i/o mode */
#define TS_ONDELAY 0x00008000 /* device is open; software copy of
* carrier is not present */
/* state for intra-line fancy editing work */
#define TS_BKSL 0x00010000 /* state for lowercase \ work */
#define TS_QUOT 0x00020000 /* last character input was \ */
#define TS_ERASE 0x00040000 /* within a \.../ for PRTRUB */
#define TS_LNCH 0x00080000 /* next character is literal */
#define TS_TYPEN 0x00100000 /* retyping suspended input (PENDIN) */
#define TS_CNTTB 0x00200000 /* counting tab width; leave FLUSHO alone */
#define TS_EXTPROC 0x00400000 /* external processing of data */
#define TS_INPUTFULL 0x00800000 /* hint to dev to throttle input */
#define TS_INPUTAVAIL 0x01000000 /* driver has buffered data */
#if NeXT
#define TS_OUTPUTBUSY 0x02000000 /* output in progress (was TS_BUSY) */
#define TS_OUTPUTFULL 0x04000000 /* output buffers full */
#endif
#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
/*
* 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 */
/*
* Structure for Posix termios
*/
struct nty {
struct tty *t; /* associated tty structure */
struct nty *t_nforw; /* link to next nty structure */
#if POSIX_KERN
struct session *t_session; /* point to current session */
struct pgrp *t_posix_pgrp; /* point to foreground pgrp, if any */
#endif /* POSIX_KERN */
long t_pflags; /* for termios, see below */
u_char t_quote;
u_char t_min;
u_char t_time;
};
struct nty *ttynty();
#define TP_ECHONL 0x00000002
#define TP_ECHOK 0x00000004
#define TP_ISIG 0x00000008
#define TP_IEXTEN 0x00000010
#define TP_ALTWERASE 0x00000020
#define TP_CSIZE 0x00000300
#define TP_CS5 0x00000000
#define TP_CS6 0x00000100
#define TP_CS7 0x00000200
#define TP_CS8 0x00000300
#define TP_CSTOPB 0x00000400
#define TP_CREAD 0x00000800
#define TP_PARENB 0x00001000
#define TP_CLOCAL 0x00008000
#define TP_CSTOPB110 0x00010000
#define TP_IGNBRK 0x00020000
#define TP_BRKINT 0x00040000
#define TP_IGNPAR 0x00080000
#define TP_PARMRK 0x00100000
#define TP_INPCK 0x00200000
#define TP_ISTRIP 0x00400000
#define TP_INLCR 0x00800000
#define TP_IGNCR 0x01000000
#define TP_ICRNL 0x02000000
#define TP_IXON 0x04000000
#define TP_IMAXBEL 0x08000000
#define TP_OPOST 0x10000000
#define TP_ONLCR 0x20000000
/*
* We don't want TP_ICRNL or TP_ONLCR because we want CRMOD
* to have the original behavior by default.
* Most of the other flags are set up for cooked mode.
* They are overridden by RAW, CBREAK, LITOUT, PASS8, and PASS8OUT.
* The rest are just compatible behavior.
*/
#define TP_DEFAULT \
(TP_ECHOK|TP_ISIG|TP_IEXTEN|\
TP_CS7|TP_CREAD|TP_PARENB|TP_CSTOPB110|\
TP_BRKINT|TP_INPCK|TP_IXON|TP_IMAXBEL|\
TP_OPOST)
#define NTYDEFAULTS(np) (\
(np)->t_pflags = TP_DEFAULT, \
(np)->t_quote = '\\', \
(np)->t_min = 1, \
(np)->t_time = 0)
#if POSIX_KERN
#import <sys/proc.h>
/*
* Is tp controlling terminal for p
*/
#define isctty(p, px, np) ((px)->p_session == (np)->t_session && \
(p)->p_flag&SCTTY)
#endif /* POSIX_KERN */
#endif
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