/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (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 2009 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_TTCOMPAT_H
#define _SYS_TTCOMPAT_H

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * BSD/XENIX/V7 ttcompat module header file
 */

/*
 * Old-style terminal state.
 */
typedef struct {
        int     t_flags;                /* flags */
        char    t_ispeed, t_ospeed;     /* speeds */
        char    t_erase;                /* erase last character */
        char    t_kill;                 /* erase entire line */
        char    t_intrc;                /* interrupt */
        char    t_quitc;                /* quit */
        char    t_startc;               /* start output */
        char    t_stopc;                /* stop output */
        char    t_eofc;                 /* end-of-file */
        char    t_brkc;                 /* input delimiter (like nl) */
        char    t_suspc;                /* stop process signal */
        char    t_dsuspc;               /* delayed stop process signal */
        char    t_rprntc;               /* reprint line */
        char    t_flushc;               /* flush output (toggles) */
        char    t_werasc;               /* word erase */
        char    t_lnextc;               /* literal next character */
        int     t_xflags;               /* XXX extended flags */
} compat_state_t;

/*
 * Per-tty structure.
 */
typedef struct {
        mblk_t  *t_iocpending;          /* ioctl pending successful */
                                        /* allocation */
        compat_state_t t_curstate;      /* current emulated state */
        struct sgttyb t_new_sgttyb;     /* new sgttyb from TIOCSET[PN] */
        struct tchars t_new_tchars;     /* new tchars from TIOCSETC */
        struct ltchars t_new_ltchars;   /* new ltchars from TIOCSLTC */
        int     t_new_lflags;           /* new lflags from TIOCLSET/LBIS/LBIC */
        int     t_state;                /* state bits */
        int     t_iocid;                /* ID of "ioctl" we handle specially */
        int     t_ioccmd;               /* ioctl code for that "ioctl" */
        bufcall_id_t t_bufcallid;       /* ID from qbufcall */
        intptr_t t_arg;                 /* third argument to ioctl */
} ttcompat_state_t;


#define TS_FREE  0x00   /* not in use */
#define TS_INUSE 0x01   /* allocated */
#define TS_W_IN  0x02   /* waiting for an M_IOCDATA response to an */
                        /* M_COPYIN request */
#define TS_W_OUT 0x04   /* waiting for an M_IOCDATA response to an */
                        /* M_COPYOUT request */
#define TS_IOCWAIT 0x08 /* waiting for an M_IOCACK/M_IOCNAK from downstream */
#define TS_TIOCNAK 0x10 /* received a NAK in response to a ttcompat message */

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_TTCOMPAT_H */