207 lines
5.4 KiB
C
Executable File
207 lines
5.4 KiB
C
Executable File
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
|
|
/* All Rights Reserved */
|
|
|
|
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
|
|
/* The copyright notice above does not evidence any */
|
|
/* actual or intended publication of such source code. */
|
|
|
|
#ident "@(#)tty.h 1.1 90/04/27 SMI" /* SVr4.0 1.1 */
|
|
|
|
/*******************************************************************
|
|
|
|
PROPRIETARY NOTICE (Combined)
|
|
|
|
This source code is unpublished proprietary information
|
|
constituting, or derived under license from AT&T's UNIX(r) System V.
|
|
In addition, portions of such source code were derived from Berkeley
|
|
4.3 BSD under license from the Regents of the University of
|
|
California.
|
|
|
|
|
|
|
|
Copyright Notice
|
|
|
|
Notice of copyright on this source code product does not indicate
|
|
publication.
|
|
|
|
(c) 1986,1987,1988,1989 Sun Microsystems, Inc
|
|
(c) 1983,1984,1985,1986,1987,1988,1989 AT&T.
|
|
All rights reserved.
|
|
********************************************************************/
|
|
|
|
#ifndef _SYS_TTY_H
|
|
#define _SYS_TTY_H
|
|
|
|
|
|
#include <sys/ttychars.h>
|
|
#include <sys/ttydev.h>
|
|
|
|
/*
|
|
* A clist structure is the head of a linked list queue of characters.
|
|
* The routines getc* and putc* manipulate these structures.
|
|
*/
|
|
|
|
struct clist {
|
|
int c_cc; /* character count */
|
|
struct cblock *c_cf; /* pointer to first */
|
|
struct cblock *c_cl; /* pointer to last */
|
|
};
|
|
|
|
/* Macro to find clist structure given pointer into it */
|
|
#define CMATCH(pointer) (char *)(cfree + (pointer - cfree))
|
|
|
|
/* Character control block for interrupt level control */
|
|
|
|
struct ccblock {
|
|
caddr_t c_ptr; /* buffer address */
|
|
ushort c_count; /* character count */
|
|
ushort c_size; /* buffer size */
|
|
};
|
|
|
|
/*
|
|
* A tty structure is needed for each UNIX character device that
|
|
* is used for normal terminal IO.
|
|
*/
|
|
#define NCC 8
|
|
struct tty {
|
|
struct clist t_rawq; /* raw input queue */
|
|
struct clist t_canq; /* canonical queue */
|
|
struct clist t_outq; /* output queue */
|
|
struct ccblock t_tbuf; /* tx control block */
|
|
struct ccblock t_rbuf; /* rx control block */
|
|
int (* t_proc)(); /* routine for device functions */
|
|
ushort t_iflag; /* input modes */
|
|
ushort t_oflag; /* output modes */
|
|
ushort t_cflag; /* control modes */
|
|
ushort t_lflag; /* line discipline modes */
|
|
short t_state; /* internal state */
|
|
o_pid_t t_pgrp; /* process group name */
|
|
char t_line; /* line discipline */
|
|
char t_delct; /* delimiter count */
|
|
char t_term; /* terminal type */
|
|
char t_tmflag; /* terminal flags */
|
|
char t_col; /* current column */
|
|
char t_row; /* current row */
|
|
char t_vrow; /* variable row */
|
|
char t_lrow; /* last physical row */
|
|
char t_hqcnt; /* no. high queue packets on t_outq */
|
|
char t_dstat; /* used by terminal handlers
|
|
and line disciplines */
|
|
unsigned char t_cc[NCC]; /* settable control chars */
|
|
};
|
|
|
|
/*
|
|
* The structure of a clist block
|
|
*/
|
|
#define CLSIZE 64
|
|
struct cblock {
|
|
struct cblock *c_next;
|
|
char c_first;
|
|
char c_last;
|
|
char c_data[CLSIZE];
|
|
};
|
|
|
|
extern struct cblock *cfree;
|
|
extern struct cblock *getcb();
|
|
extern struct cblock *getcf();
|
|
extern struct clist ttnulq;
|
|
extern int cfreecnt;
|
|
|
|
struct chead {
|
|
struct cblock *c_next;
|
|
int c_size;
|
|
int c_flag;
|
|
};
|
|
extern struct chead cfreelist;
|
|
|
|
struct inter {
|
|
int cnt;
|
|
};
|
|
|
|
#define QESC 0200 /* queue escape */
|
|
#define HQEND 01 /* high queue end */
|
|
|
|
#define TTIPRI 28
|
|
#define TTOPRI 29
|
|
|
|
#ifdef u3b15
|
|
/* following defs allow for job control in both vpm and stand-alone
|
|
tty environments */
|
|
#define VPMTTY 1
|
|
#define SATTY 2
|
|
#endif
|
|
|
|
/* limits */
|
|
extern int ttlowat[], tthiwat[];
|
|
#define TTYHOG 256
|
|
#define TTXOLO 132
|
|
#define TTXOHI 180
|
|
|
|
/* Hardware bits */
|
|
#define DONE 0200
|
|
#define IENABLE 0100
|
|
#define OVERRUN 040000
|
|
#define FRERROR 020000
|
|
#define PERROR 010000
|
|
|
|
/* Internal state */
|
|
#define TIMEOUT 01 /* Delay timeout in progress */
|
|
#define WOPEN 02 /* Waiting for open to complete */
|
|
#define ISOPEN 04 /* Device is open */
|
|
#define TBLOCK 010
|
|
#define CARR_ON 020 /* Software copy of carrier-present */
|
|
#define BUSY 040 /* Output in progress */
|
|
#define OASLP 0100 /* Wakeup when output done */
|
|
#define IASLP 0200 /* Wakeup when input done */
|
|
#define TTSTOP 0400 /* Output stopped by ctl-s */
|
|
#define EXTPROC 01000 /* External processing */
|
|
#define TACT 02000
|
|
#define CLESC 04000 /* Last char escape */
|
|
#define RTO 010000 /* Raw Timeout */
|
|
#define TTIOW 020000
|
|
#define TTXON 040000
|
|
#define TTXOFF 0100000
|
|
|
|
/* l_output status */
|
|
#define CPRES 0100000
|
|
|
|
/* device commands */
|
|
#define T_OUTPUT 0
|
|
#define T_TIME 1
|
|
#define T_SUSPEND 2
|
|
#define T_RESUME 3
|
|
#define T_BLOCK 4
|
|
#define T_UNBLOCK 5
|
|
#define T_RFLUSH 6
|
|
#define T_WFLUSH 7
|
|
#define T_BREAK 8
|
|
#define T_INPUT 9
|
|
#define T_DISCONNECT 10
|
|
#define T_PARM 11
|
|
#define T_SWTCH 12
|
|
|
|
/*
|
|
* Terminal flags (set in t_tmflgs).
|
|
*/
|
|
|
|
#define SNL 1 /* non-standard new-line needed */
|
|
#define ANL 2 /* automatic new-line */
|
|
#define LCF 4 /* Special treatment of last col, row */
|
|
#define TERM_CTLECHO 010 /* Echo terminal control characters */
|
|
#define TERM_INVIS 020 /* do not send escape sequences to user */
|
|
#define QLOCKB 040 /* high queue locked for base level */
|
|
#define QLOCKI 0100 /* high queue locked for interrupts */
|
|
#define TERM_BIT 0200 /* Bit reserved for terminal drivers. */
|
|
/* Usually used to indicate that an esc*/
|
|
/* character has arrived and that the */
|
|
/* next character is special. */
|
|
/* This bit is the same as the TM_SET */
|
|
/* bit which may never be set by a user*/
|
|
/*
|
|
* device reports
|
|
*/
|
|
#define L_BUF 0
|
|
#define L_BREAK 3
|
|
|
|
#endif /* _SYS_TTY_H */
|