/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */

#ifndef _SYS_STRTTY_H
#define _SYS_STRTTY_H

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * header file for STREAMS TTY subsystem
 */

/*
 * The t_buf data structure holds information about a message
 * block and its associated data buffer.  One is used for received
 * blocks, and another is used for blocks to be transmitted to
 * a user terminal or a printer.
 */

struct t_buf
{
        mblk_t *bu_bp;  /* message block pointer */
        unsigned char *bu_ptr;  /* data buffer pointer */
        ushort_t bu_cnt;        /* data buffer character count */
};

/*
 * A tty structure is needed for each character device used for normal
 * tty I/O.  Each PORTS board supports 4 user terminals and 1 CENTRONICS-
 * TYPE printer.
 */

struct strtty
{
        struct t_buf t_in;      /* input buffer info */
        struct t_buf t_out;     /* output buffer info */
        queue_t *t_rdqp;        /* pointer to tty read queue */
        mblk_t  *t_ioctlp;      /* ioctl block pointer */
        mblk_t  *t_lbuf;        /* pointer to a large data buffer */
        int     t_dev;          /* tty minor device number */
        int     t_iflag;        /* input setting  flags */
        int     t_oflag;        /* output setting flags */
        int     t_cflag;        /* physical setting flags */
        int     t_lflag;        /* "line discipline" flags */
        short   t_state;        /* internal state */
        char    t_line;         /* active line discipline */
        char    t_dstat;        /* more internal state flags */
        unsigned char t_cc[NCCS]; /* settable control chars */
};

/*
 * Size of internal ports data buffer, one per port
 */
#define LARGEBUFSZ      512

#define TTIPRI  28
#define TTOPRI  29

/* 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 WIOC    0100            /* Wait for ioctl to complete */
#define WGETTY  0200            /* opened by supergetty, waiting for getty */
#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
/*
 * M_CTL message types.
 */
#define MC_NO_CANON     0       /* module below saying it will canonicalize */
#define MC_DO_CANON     1       /* module below saying it won't canonicalize */
#define MC_CANONQUERY   2       /* module above asking whether module below */
                                /* canonicalizes */
#define MC_PART_CANON   3       /* tell line discipline to do some */
                                /* canonicalization */
/* XXX - These seem pretty device dependent... */
#define MC_SERVICEIMM   3       /* tell the ZS driver to return input */
                                /* immediately */
#define MC_SERVICEDEF   4       /* tell the ZS driver it can wait */
#define MC_POSIXQUERY   5       /* check if driver has POSIX close semantics */
#define MC_HAS_POSIX    6       /* driver does support POSIX */

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_STRTTY_H */