/*
 * 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 1992 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

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

#define OLDPACKSIZE     128

#define PACKSIZE        64
#define MINPACKSIZE     32
#define MAXPACKSIZE   4096

#define WINDOWS         7
#define MINWINDOWS      1
#define MAXWINDOWS      7


struct header {
        char    sync;
        char    ksize;
        unsigned short sum;
        char    cntl;
        char    ccntl;
};
#define HDRSIZ  6

struct pack {
        short   p_state;        /* line state */
        short   p_bits;         /* mask for getepack */
        short   p_rsize;        /* input packet size */
        short   p_xsize;        /* output packet size */
        struct  header p_ihbuf; /* input header */
        struct  header p_ohbuf; /* output header */
        char    *p_rptr;
        char    **p_ipool;
        char    p_xcount;       /* # active output buffers */
        char    p_rcount;
        char    p_nout,p_tout;
        char    p_lpsize;       /* log(psize/32) */
        char    p_timer;
        char    p_obusy;
        char    p_srxmit;
        char    p_rwindow;      /* window size */
        char    p_swindow;
        char    p_msg;          /* control msg */
        char    p_rmsg;         /* repeated control msg */
        char    p_ps,p_pr;      /* last packet sent, recv'd */
        char    p_rpr;
        char    p_nxtps;        /* next output seq number */
        char    p_imap;         /* bit map of input buffers */
        char    p_pscopy;       /* newest output packet */
        char    *p_ob[8];       /* output buffers */
        char    *p_ib[8];       /* input buffers */
        char    p_os[8];        /* output buffer status */
        char    p_is[8];        /* input buffer status */
        short   p_osum[8];      /* output checksums */
        short   p_isum[8];      /* input checksums */
        int     p_ifn, p_ofn;
};
#define CHECK   0125252
#define SYN     020
#define MOD8    7
#define ISCNTL(a)       ((a & 0300)==0)
#ifndef MIN
#define MIN(a,b)        ((a<b)? a:b)
#endif

extern char     next[8];
extern char     mask[8];
extern int      npbits;
extern int      pkactive;
extern int      pkdebug;
extern int      pksizes[];
extern struct pack *Pk;

/*
 * driver state
 */
#define DEAD    0
#define INITa   1
#define INITb   2
#define INITab  3
#define LIVE    010
#define RXMIT   020
#define RREJ    040
#define PDEBUG  0200
#define DRAINO  0400
#define WAITO   01000
#define DOWN    02000
#define RCLOSE  04000
#define BADFRAME 020000

/*
 * io buffer states
 */
#define B_NULL  0
#define B_READY 1
#define B_SENT  2
#define B_RESID 010
#define B_COPY  020
#define B_MARK  040
#define B_SHORT 0100

/*
 * control messages
 */
#define CLOSE   1
#define RJ      2
/* #define      SRJ     3 */    /* not supported */
#define RR      4
#define INITC   5
#define INITB   6
#define INITA   7

#define M_RJ    4
/* #define      M_SRJ   010 */  /* not used */
#define M_RR    020
#define M_INITC 040
#define M_CLOSE 2
#define M_INITA 0200
#define M_INITB 0100

/*
 * packet ioctl buf
 */
struct  piocb {
        unsigned t;
        short   psize;
        short   mode;
        short   state;
        char    window;
};