The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netisdn/i4b_l2fsm.h

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    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 1.2 2005/02/26 22:39:49 perry Exp $
   31  *
   32  * $FreeBSD$
   33  *
   34  *      last edit-date: [Sat Mar 18 10:28:37 2000]
   35  *
   36  *---------------------------------------------------------------------------*/
   37 
   38 #ifndef _I4B_L2FSM_H_
   39 #define _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 /* _I4B_L2FSM_H_ */
   84 

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