* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
* %sccs.include.redist.c%
* @(#)tty.h 8.7 (Berkeley) %G%
#include <sys/select.h> /* For struct selinfo. */
* Clists are character lists, which is a variable length linked list
* of cblocks, with a count of the number of characters in the list.
int c_cc
; /* Number of characters in the clist. */
char *c_cf
; /* Pointer to the first cblock. */
char *c_cl
; /* Pointer to the last cblock. */
* Should be split in two, into device and tty drivers.
* Glue could be masks of what to echo and circular buffer
struct clist t_rawq
; /* Device raw input queue. */
long t_rawcc
; /* Raw input queue statistics. */
struct clist t_canq
; /* Device canonical queue. */
long t_cancc
; /* Canonical queue statistics. */
struct clist t_outq
; /* Device output queue. */
long t_outcc
; /* Output queue statistics. */
u_char t_line
; /* Interface to device drivers. */
dev_t t_dev
; /* Device. */
int t_state
; /* Device and driver (TS*) state. */
int t_flags
; /* Tty flags. */
struct pgrp
*t_pgrp
; /* Foreground process group. */
struct session
*t_session
; /* Enclosing session. */
struct selinfo t_rsel
; /* Tty read/oob select. */
struct selinfo t_wsel
; /* Tty write select. */
struct termios t_termios
; /* Termios state. */
struct winsize t_winsize
; /* Window size. */
void (*t_oproc
) __P((struct tty
*));
void (*t_stop
) __P((struct tty
*, int));
/* Set hardware state. */
int (*t_param
) __P((struct tty
*, struct termios
*));
void *t_sc
; /* XXX: net/if_sl.c:sl_softc. */
short t_column
; /* Tty output column. */
short t_rocount
, t_rocol
; /* Tty. */
short t_hiwat
; /* High water mark. */
short t_lowat
; /* Low water mark. */
short t_gen
; /* Generation number. */
#define t_cc t_termios.c_cc
#define t_cflag t_termios.c_cflag
#define t_iflag t_termios.c_iflag
#define t_ispeed t_termios.c_ispeed
#define t_lflag t_termios.c_lflag
#define t_min t_termios.c_min
#define t_oflag t_termios.c_oflag
#define t_ospeed t_termios.c_ospeed
#define t_time t_termios.c_time
#define TTIPRI 25 /* Sleep priority for tty reads. */
#define TTOPRI 26 /* Sleep priority for tty writes. */
#define TTMAXHIWAT roundup(2048, CBSIZE)
#define TTMINHIWAT roundup(100, CBSIZE)
/* These flags are kept in t_state. */
#define TS_ASLEEP 0x00001 /* Process waiting for tty. */
#define TS_ASYNC 0x00002 /* Tty in async I/O mode. */
#define TS_BUSY 0x00004 /* Draining output. */
#define TS_CARR_ON 0x00008 /* Carrier is present. */
#define TS_FLUSH 0x00010 /* Outq has been flushed during DMA. */
#define TS_ISOPEN 0x00020 /* Open has completed. */
#define TS_TBLOCK 0x00040 /* Further input blocked. */
#define TS_TIMEOUT 0x00080 /* Wait for output char processing. */
#define TS_TTSTOP 0x00100 /* Output paused. */
#define TS_WOPEN 0x00200 /* Open in progress. */
#define TS_XCLUDE 0x00400 /* Tty requires exclusivity. */
/* State for intra-line fancy editing work. */
#define TS_BKSL 0x00800 /* State for lowercase \ work. */
#define TS_CNTTB 0x01000 /* Counting tab width, ignore FLUSHO. */
#define TS_ERASE 0x02000 /* Within a \.../ for PRTRUB. */
#define TS_LNCH 0x04000 /* Next character is literal. */
#define TS_TYPEN 0x08000 /* Retyping suspended input (PENDIN). */
#define TS_LOCAL (TS_BKSL | TS_CNTTB | TS_ERASE | TS_LNCH | TS_TYPEN)
/* Character type information. */
int sp_speed
; /* Speed. */
/* Modem control commands (driver). */
/* Flags on a 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? */
((p)->p_session == (tp)->t_session && (p)->p_flag & P_CONTROLT)
/* Is p in background of tp? */
#define isbackground(p, tp) \
(isctty((p), (tp)) && (p)->p_pgrp != (tp)->t_pgrp)
extern struct ttychars ttydefaults
;
/* Symbolic sleep message strings. */
extern char ttyin
[], ttyout
[], ttopen
[], ttclos
[], ttybg
[], ttybuf
[];
int b_to_q
__P((char *cp
, int cc
, struct clist
*q
));
void catq
__P((struct clist
*from
, struct clist
*to
));
void clist_init
__P((void));
int getc
__P((struct clist
*q
));
void ndflush
__P((struct clist
*q
, int cc
));
int ndqb
__P((struct clist
*q
, int flag
));
char *nextc
__P((struct clist
*q
, char *cp
, int *c
));
int putc
__P((int c
, struct clist
*q
));
int q_to_b
__P((struct clist
*q
, char *cp
, int cc
));
int unputc
__P((struct clist
*q
));
int nullmodem
__P((struct tty
*tp
, int flag
));
int tputchar
__P((int c
, struct tty
*tp
));
int ttioctl
__P((struct tty
*tp
, u_long com
, void *data
, int flag
));
int ttread
__P((struct tty
*tp
, struct uio
*uio
, int flag
));
void ttrstrt
__P((void *tp
));
int ttselect
__P((dev_t device
, int rw
, struct proc
*p
));
void ttsetwater
__P((struct tty
*tp
));
int ttspeedtab
__P((int speed
, struct speedtab
*table
));
int ttstart
__P((struct tty
*tp
));
void ttwakeup
__P((struct tty
*tp
));
int ttwrite
__P((struct tty
*tp
, struct uio
*uio
, int flag
));
void ttychars
__P((struct tty
*tp
));
int ttycheckoutq
__P((struct tty
*tp
, int wait
));
int ttyclose
__P((struct tty
*tp
));
void ttyflush
__P((struct tty
*tp
, int rw
));
void ttyinfo
__P((struct tty
*tp
));
int ttyinput
__P((int c
, struct tty
*tp
));
int ttylclose
__P((struct tty
*tp
, int flag
));
int ttymodem
__P((struct tty
*tp
, int flag
));
int ttyopen
__P((dev_t device
, struct tty
*tp
));
int ttyoutput
__P((int c
, struct tty
*tp
));
void ttypend
__P((struct tty
*tp
));
void ttyretype
__P((struct tty
*tp
));
void ttyrub
__P((int c
, struct tty
*tp
));
int ttysleep
__P((struct tty
*tp
,
void *chan
, int pri
, char *wmesg
, int timeout
));
int ttywait
__P((struct tty
*tp
));
int ttywflush
__P((struct tty
*tp
));