sys/netisdn/i4b_l2fsm.h

   1 /*
   2  * Copyright (c) 1997, 2000 Hellmuth Michaelis. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23  * SUCH DAMAGE.
  24  *
  25  *---------------------------------------------------------------------------
  26  *
  27  *      i4b_l2fsm.h - layer 2 FSM
  28  *      -------------------------
  29  *
  30  *      $Id: i4b_l2fsm.h,v 1.3 2005/12/10 23:51:50 elad Exp $
  31  *
  32  * $FreeBSD$
  33  *
  34  *      last edit-date: [Sat Mar 18 10:28:37 2000]
  35  *
  36  *---------------------------------------------------------------------------*/
  37
  38 #ifndef _NETISDN_I4B_L2FSM_H_
  39 #define _NETISDN_I4B_L2FSM_H_
  40
  41 enum Q921_states {
  42         ST_TEI_UNAS,    /* TEI unassigned */
  43         ST_ASG_AW_TEI,  /* assign awaiting TEI */
  44         ST_EST_AW_TEI,  /* establish awaiting TEI */
  45         ST_TEI_ASGD,    /* TEI assigned */
  46
  47         ST_AW_EST,      /* awaiting establishment */
  48         ST_AW_REL,      /* awaiting release */
  49         ST_MULTIFR,     /* multiple frame established */
  50         ST_TIMREC,      /* timer recovery */
  51
  52         ST_SUBSET,      /* SUBroutine SETs new state */
  53         ST_ILL,         /* illegal state */
  54         N_STATES        /* number of states */
  55 };
  56
  57 enum Q921_events {
  58         EV_DLESTRQ,     /* dl establish req */
  59         EV_DLUDTRQ,     /* dl unit data req */
  60         EV_MDASGRQ,     /* mdl assign req */
  61         EV_MDERRRS,     /* mdl error response */
  62         EV_PSDEACT,     /* persistent deactivation */
  63         EV_MDREMRQ,     /* mdl remove req */
  64         EV_RXSABME,     /* rx'd SABME */
  65         EV_RXDISC,      /* rx'd DISC */
  66         EV_RXUA,        /* rx'd UA */
  67         EV_RXDM,        /* rx'd DM */
  68         EV_T200EXP,     /* T200 expired */
  69         EV_DLDATRQ,     /* dl data req */
  70         EV_DLRELRQ,     /* dl release req */
  71         EV_T203EXP,     /* T203 expired */
  72         EV_OWNBUSY,     /* set own rx busy */
  73         EV_OWNRDY,      /* clear own rx busy */
  74         EV_RXRR,        /* rx'd RR */
  75         EV_RXREJ,       /* rx'd REJ */
  76         EV_RXRNR,       /* rx'd RNR */
  77         EV_RXFRMR,      /* rx'd FRMR */
  78
  79         EV_ILL,         /* Illegal */
  80         N_EVENTS
  81 };
  82
  83 #endif /* !_NETISDN_I4B_L2FSM_H_ */