1597 lines
45 KiB
C
1597 lines
45 KiB
C
/*
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* Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*---------------------------------------------------------------------------
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*
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* i4b_l2fsm.c - layer 2 FSM
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* -------------------------
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*
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* $Id: i4b_l2fsm.c,v 1.15 1999/03/16 15:29:06 hm Exp $
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*
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* last edit-date: [Tue Mar 16 16:27:12 1999]
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*
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*---------------------------------------------------------------------------*/
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#ifdef __FreeBSD__
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#include "i4bq921.h"
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#else
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#define NI4BQ921 1
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#endif
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#if NI4BQ921 > 0
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#include <sys/param.h>
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#if defined(__FreeBSD__) && __FreeBSD__ >= 3
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#include <sys/ioccom.h>
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#else
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#include <sys/ioctl.h>
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#endif
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#ifdef __FreeBSD__
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#include <machine/i4b_debug.h>
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#include <machine/i4b_ioctl.h>
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#else
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#include <i4b/i4b_debug.h>
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#include <i4b/i4b_ioctl.h>
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#endif
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#include <i4b/include/i4b_global.h>
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#include <i4b/include/i4b_l1l2.h>
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#include <i4b/include/i4b_l2l3.h>
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#include <i4b/include/i4b_isdnq931.h>
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#include <i4b/include/i4b_mbuf.h>
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#include <i4b/layer2/i4b_l2.h>
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#include <i4b/layer2/i4b_l2fsm.h>
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l2_softc_t l2_softc[ISIC_MAXUNIT];
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static char *l2state_text[N_STATES] = {
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"ST_TEI_UNAS",
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"ST_ASG_AW_TEI",
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"ST_EST_AW_TEI",
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"ST_TEI_ASGD",
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"ST_AW_EST",
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"ST_AW_REL",
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"ST_MULTIFR",
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"ST_TIMREC",
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"ST_SUBSET",
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"Illegal State"
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};
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static char *l2event_text[N_EVENTS] = {
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"EV_DLESTRQ",
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"EV_DLUDTRQ",
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"EV_MDASGRQ",
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"EV_MDERRRS",
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"EV_PSDEACT",
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"EV_MDREMRQ",
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"EV_RXSABME",
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"EV_RXDISC",
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"EV_RXUA",
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"EV_RXDM",
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"EV_T200EXP",
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"EV_DLDATRQ",
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"EV_DLRELRQ",
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"EV_T203EXP",
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"EV_OWNBUSY",
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"EV_OWNRDY",
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"EV_RXRR",
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"EV_RXREJ",
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"EV_RXRNR",
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"EV_RXFRMR",
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"Illegal Event"
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};
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static void F_TU01 __P((l2_softc_t *));
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static void F_TU03 __P((l2_softc_t *));
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static void F_TA03 __P((l2_softc_t *));
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static void F_TA04 __P((l2_softc_t *));
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static void F_TA05 __P((l2_softc_t *));
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static void F_TE03 __P((l2_softc_t *));
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static void F_TE04 __P((l2_softc_t *));
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static void F_TE05 __P((l2_softc_t *));
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static void F_T01 __P((l2_softc_t *));
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static void F_T05 __P((l2_softc_t *));
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static void F_T06 __P((l2_softc_t *));
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static void F_T07 __P((l2_softc_t *));
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static void F_T08 __P((l2_softc_t *));
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static void F_T09 __P((l2_softc_t *));
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static void F_T10 __P((l2_softc_t *));
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static void F_T13 __P((l2_softc_t *));
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static void F_AE01 __P((l2_softc_t *));
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static void F_AE05 __P((l2_softc_t *));
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static void F_AE06 __P((l2_softc_t *));
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static void F_AE07 __P((l2_softc_t *));
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static void F_AE08 __P((l2_softc_t *));
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static void F_AE09 __P((l2_softc_t *));
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static void F_AE10 __P((l2_softc_t *));
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static void F_AE11 __P((l2_softc_t *));
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static void F_AE12 __P((l2_softc_t *));
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static void F_AR05 __P((l2_softc_t *));
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static void F_AR06 __P((l2_softc_t *));
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static void F_AR07 __P((l2_softc_t *));
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static void F_AR08 __P((l2_softc_t *));
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static void F_AR09 __P((l2_softc_t *));
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static void F_AR10 __P((l2_softc_t *));
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static void F_AR11 __P((l2_softc_t *));
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static void F_MF01 __P((l2_softc_t *));
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static void F_MF05 __P((l2_softc_t *));
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static void F_MF06 __P((l2_softc_t *));
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static void F_MF07 __P((l2_softc_t *));
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static void F_MF08 __P((l2_softc_t *));
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static void F_MF09 __P((l2_softc_t *));
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static void F_MF10 __P((l2_softc_t *));
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static void F_MF11 __P((l2_softc_t *));
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static void F_MF12 __P((l2_softc_t *));
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static void F_MF13 __P((l2_softc_t *));
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static void F_MF14 __P((l2_softc_t *));
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static void F_MF15 __P((l2_softc_t *));
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static void F_MF16 __P((l2_softc_t *));
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static void F_MF17 __P((l2_softc_t *));
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static void F_MF18 __P((l2_softc_t *));
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static void F_MF19 __P((l2_softc_t *));
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static void F_MF20 __P((l2_softc_t *));
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static void F_TR01 __P((l2_softc_t *));
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static void F_TR05 __P((l2_softc_t *));
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static void F_TR06 __P((l2_softc_t *));
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static void F_TR07 __P((l2_softc_t *));
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static void F_TR08 __P((l2_softc_t *));
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static void F_TR09 __P((l2_softc_t *));
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static void F_TR10 __P((l2_softc_t *));
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static void F_TR11 __P((l2_softc_t *));
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static void F_TR12 __P((l2_softc_t *));
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static void F_TR13 __P((l2_softc_t *));
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static void F_TR15 __P((l2_softc_t *));
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static void F_TR16 __P((l2_softc_t *));
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static void F_TR17 __P((l2_softc_t *));
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static void F_TR18 __P((l2_softc_t *));
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static void F_TR19 __P((l2_softc_t *));
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static void F_TR20 __P((l2_softc_t *));
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static void F_ILL __P((l2_softc_t *));
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static void F_NCNA __P((l2_softc_t *));
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/*---------------------------------------------------------------------------*
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* FSM illegal state default action
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*---------------------------------------------------------------------------*/
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static void
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F_ILL(l2_softc_t *l2sc)
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{
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DBGL2(L2_F_ERR, "F_ILL", ("FSM function F_ILL executing\n"));
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}
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/*---------------------------------------------------------------------------*
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* FSM No change, No action
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*---------------------------------------------------------------------------*/
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static void
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F_NCNA(l2_softc_t *l2sc)
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{
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DBGL2(L2_F_MSG, "F_NCNA", ("FSM function F_NCNA executing\n"));
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}
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/*---------------------------------------------------------------------------*
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* layer 2 state transition table
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*---------------------------------------------------------------------------*/
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struct l2state_tab {
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void (*func) __P((l2_softc_t *)); /* function to execute */
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int newstate; /* next state */
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} l2state_tab[N_EVENTS][N_STATES] = {
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/* STATE: ST_TEI_UNAS, ST_ASG_AW_TEI, ST_EST_AW_TEI, ST_TEI_ASGD, ST_AW_EST, ST_AW_REL, ST_MULTIFR, ST_TIMREC, ST_SUBSET, ILLEGAL STATE */
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/* -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
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/*EV_DLESTRQ*/{ {F_TU01, ST_EST_AW_TEI}, {F_NCNA, ST_EST_AW_TEI}, {F_ILL, ST_ILL}, {F_T01, ST_AW_EST}, {F_AE01, ST_AW_EST}, {F_ILL, ST_ILL}, {F_MF01, ST_AW_EST}, {F_TR01, ST_AW_EST}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_DLUDTRQ*/{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_MDASGRQ*/{ {F_TU03, ST_TEI_ASGD}, {F_TA03, ST_TEI_ASGD}, {F_TE03, ST_AW_EST}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_MDERRRS*/{ {F_ILL, ST_ILL}, {F_TA04, ST_TEI_UNAS}, {F_TE04, ST_TEI_UNAS}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_PSDEACT*/{ {F_ILL, ST_ILL}, {F_TA05, ST_TEI_UNAS}, {F_TE05, ST_TEI_UNAS}, {F_T05, ST_TEI_ASGD}, {F_AE05, ST_TEI_ASGD}, {F_AR05, ST_TEI_ASGD}, {F_MF05, ST_TEI_ASGD}, {F_TR05, ST_TEI_ASGD}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_MDREMRQ*/{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_T06, ST_TEI_UNAS}, {F_AE06, ST_TEI_UNAS}, {F_AR06, ST_TEI_UNAS}, {F_MF06, ST_TEI_UNAS}, {F_TR06, ST_TEI_UNAS}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_RXSABME*/{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_T07, ST_SUBSET}, {F_AE07, ST_AW_EST}, {F_AR07, ST_AW_REL}, {F_MF07, ST_MULTIFR}, {F_TR07, ST_MULTIFR}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_RXDISC */{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_T08, ST_TEI_ASGD}, {F_AE08, ST_AW_EST}, {F_AR08, ST_AW_REL}, {F_MF08, ST_TEI_ASGD}, {F_TR08, ST_TEI_ASGD}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_RXUA */{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_T09, ST_TEI_ASGD}, {F_AE09, ST_SUBSET}, {F_AR09, ST_SUBSET}, {F_MF09, ST_MULTIFR}, {F_TR09, ST_TIMREC}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_RXDM */{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_T10, ST_SUBSET}, {F_AE10, ST_SUBSET}, {F_AR10, ST_SUBSET}, {F_MF10, ST_SUBSET}, {F_TR10, ST_AW_EST}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_T200EXP*/{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_AE11, ST_SUBSET}, {F_AR11, ST_SUBSET}, {F_MF11, ST_TIMREC}, {F_TR11, ST_SUBSET}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_DLDATRQ*/{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_AE12, ST_AW_EST}, {F_ILL, ST_ILL}, {F_MF12, ST_MULTIFR}, {F_TR12, ST_TIMREC}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_DLRELRQ*/{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_T13, ST_TEI_ASGD}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_MF13, ST_AW_REL}, {F_TR13, ST_AW_REL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_T203EXP*/{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_MF14, ST_TIMREC}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_OWNBUSY*/{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_MF15, ST_MULTIFR}, {F_TR15, ST_TIMREC}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_OWNRDY */{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_MF16, ST_MULTIFR}, {F_TR16, ST_TIMREC}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_RXRR */{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_MF17, ST_SUBSET}, {F_TR17, ST_SUBSET}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_RXREJ */{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_MF18, ST_SUBSET}, {F_TR18, ST_SUBSET}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_RXRNR */{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_MF19, ST_SUBSET}, {F_TR19, ST_SUBSET}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_RXFRMR */{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_MF20, ST_AW_EST}, {F_TR20, ST_AW_EST}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} },
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/*EV_ILL */{ {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL}, {F_ILL, ST_ILL} }
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};
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/*---------------------------------------------------------------------------*
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* event handler, executes function and sets new state
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*---------------------------------------------------------------------------*/
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void i4b_next_l2state(l2_softc_t *l2sc, int event)
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{
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int currstate, newstate;
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int (*savpostfsmfunc)(int) = NULL;
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/* check event number */
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if(event > N_EVENTS)
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panic("i4b_l2fsm.c: event > N_EVENTS\n");
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/* get current state and check it */
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if((currstate = l2sc->Q921_state) > N_STATES) /* failsafe */
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panic("i4b_l2fsm.c: currstate > N_STATES\n");
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/* get new state and check it */
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if((newstate = l2state_tab[event][currstate].newstate) > N_STATES)
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panic("i4b_l2fsm.c: newstate > N_STATES\n");
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if(newstate != ST_SUBSET)
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{ /* state function does NOT set new state */
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DBGL2(L2_F_MSG, "i4b_next_l2state", ("FSM event [%s]: [%s/%d => %s/%d]\n",
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l2event_text[event],
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l2state_text[currstate], currstate,
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l2state_text[newstate], newstate));
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}
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/* execute state transition function */
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(*l2state_tab[event][currstate].func)(l2sc);
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if(newstate == ST_SUBSET)
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{ /* state function DOES set new state */
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DBGL2(L2_F_MSG, "i4b_next_l2state", ("FSM S-event [%s]: [%s => %s]\n", l2event_text[event],
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l2state_text[currstate],
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l2state_text[l2sc->Q921_state]));
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}
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/* check for illegal new state */
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if(newstate == ST_ILL)
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{
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newstate = currstate;
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DBGL2(L2_F_ERR, "i4b_next_l2state", ("FSM illegal state, state = %s, event = %s!\n",
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l2state_text[currstate],
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l2event_text[event]));
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}
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/* check if state machine function has to set new state */
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if(newstate != ST_SUBSET)
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l2sc->Q921_state = newstate; /* no, we set new state */
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if(l2sc->postfsmfunc != NULL)
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{
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DBGL2(L2_F_MSG, "i4b_next_l2state", ("FSM executing postfsmfunc!\n"));
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/* try to avoid an endless loop */
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savpostfsmfunc = l2sc->postfsmfunc;
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l2sc->postfsmfunc = NULL;
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(*savpostfsmfunc)(l2sc->postfsmarg);
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}
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}
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/*---------------------------------------------------------------------------*
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* return pointer to current state description
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*---------------------------------------------------------------------------*/
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char *i4b_print_l2state(l2_softc_t *l2sc)
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{
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return((char *) l2state_text[l2sc->Q921_state]);
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}
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/*---------------------------------------------------------------------------*
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* FSM state ST_TEI_UNAS event dl establish request
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*---------------------------------------------------------------------------*/
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static void
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F_TU01(l2_softc_t *l2sc)
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{
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DBGL2(L2_F_MSG, "F_TU01", ("FSM function F_TU01 executing\n"));
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i4b_mdl_assign_ind(l2sc);
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}
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/*---------------------------------------------------------------------------*
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* FSM state ST_TEI_UNAS event mdl assign request
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*---------------------------------------------------------------------------*/
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static void
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F_TU03(l2_softc_t *l2sc)
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{
|
|
DBGL2(L2_F_MSG, "F_TU03", ("FSM function F_TU03 executing\n"));
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_ASG_AW_TEI event mdl assign request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TA03(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TA03", ("FSM function F_TA03 executing\n"));
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_ASG_AW_TEI event mdl error response
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TA04(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TA04", ("FSM function F_TA04 executing\n"));
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_ASG_AW_TEI event persistent deactivation
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TA05(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TA05", ("FSM function F_TA05 executing\n"));
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_EST_AW_TEI event mdl assign request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TE03(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TE03", ("FSM function F_TE03 executing\n"));
|
|
i4b_establish_data_link(l2sc);
|
|
l2sc->l3initiated = 1;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_EST_AW_TEI event mdl error response
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TE04(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TE04", ("FSM function F_TE04 executing\n"));
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_EST_AW_TEI event persistent deactivation
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TE05(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TE05", ("FSM function F_TE05 executing\n"));
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TEI_ASGD event dl establish request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_T01(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_T01", ("FSM function F_T01 executing\n"));
|
|
i4b_establish_data_link(l2sc);
|
|
l2sc->l3initiated = 1;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TEI_ASGD event persistent deactivation
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_T05(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_T05", ("FSM function F_T05 executing\n"));
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TEI_ASGD event mdl remove request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_T06(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_T06", ("FSM function F_T06 executing\n"));
|
|
/*XXX*/ i4b_mdl_assign_ind(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TEI_ASGD event rx'd SABME
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_T07(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_T07", ("FSM function F_T07 executing\n"));
|
|
|
|
/* XXX */
|
|
#ifdef NOTDEF
|
|
if(NOT able to establish)
|
|
{
|
|
i4b_tx_dm(l2sc, l2sc->rxd_PF);
|
|
l2sc->Q921_state = ST_TEI_ASGD;
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
i4b_clear_exception_conditions(l2sc);
|
|
|
|
MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_ACTIVE);
|
|
|
|
i4b_tx_ua(l2sc, l2sc->rxd_PF);
|
|
|
|
l2sc->vs = 0;
|
|
l2sc->va = 0;
|
|
l2sc->vr = 0;
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Est_Ind_A;
|
|
|
|
i4b_T203_start(l2sc);
|
|
|
|
l2sc->Q921_state = ST_MULTIFR;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TEI_ASGD event rx'd DISC
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_T08(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_T08", ("FSM function F_T08 executing\n"));
|
|
MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_IDLE);
|
|
i4b_tx_ua(l2sc, l2sc->rxd_PF);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TEI_ASGD event rx'd UA
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_T09(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_T09", ("FSM function F_T09 executing\n"));
|
|
i4b_mdl_error_ind(l2sc, "F_T09", MDL_ERR_C);
|
|
i4b_mdl_error_ind(l2sc, "F_T09", MDL_ERR_D);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TEI_ASGD event rx'd DM
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_T10(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_T10", ("FSM function F_T10 executing\n"));
|
|
|
|
if(l2sc->rxd_PF)
|
|
{
|
|
l2sc->Q921_state = ST_TEI_ASGD;
|
|
}
|
|
else
|
|
{
|
|
#ifdef NOTDEF
|
|
if(NOT able_to_etablish)
|
|
{
|
|
l2sc->Q921_state = ST_TEI_ASGD;
|
|
return;
|
|
}
|
|
#endif
|
|
i4b_establish_data_link(l2sc);
|
|
|
|
l2sc->l3initiated = 1;
|
|
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TEI_ASGD event dl release request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_T13(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_T13", ("FSM function F_T13 executing\n"));
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Cnf_A;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_EST event dl establish request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AE01(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AE01", ("FSM function F_AE01 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->l3initiated = 1;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_EST event persistent deactivation
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AE05(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AE05", ("FSM function F_AE05 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_EST event mdl remove request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AE06(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AE06", ("FSM function F_AE06 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
|
|
/*XXX*/ i4b_mdl_assign_ind(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_EST event rx'd SABME
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AE07(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AE07", ("FSM function F_AE07 executing\n"));
|
|
MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_ACTIVE);
|
|
i4b_tx_ua(l2sc, l2sc->rxd_PF);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_EST event rx'd DISC
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AE08(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AE08", ("FSM function F_AE08 executing\n"));
|
|
i4b_tx_dm(l2sc, l2sc->rxd_PF);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_EST event rx'd UA
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AE09(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AE09", ("FSM function F_AE09 executing\n"));
|
|
|
|
if(l2sc->rxd_PF == 0)
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_AE09", MDL_ERR_D);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
else
|
|
{
|
|
if(l2sc->l3initiated)
|
|
{
|
|
l2sc->l3initiated = 0;
|
|
l2sc->vr = 0;
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Est_Cnf_A;
|
|
}
|
|
else
|
|
{
|
|
if(l2sc->vs != l2sc->va)
|
|
{
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Est_Ind_A;
|
|
}
|
|
}
|
|
|
|
MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_ACTIVE);
|
|
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_start(l2sc);
|
|
|
|
l2sc->vs = 0;
|
|
l2sc->va = 0;
|
|
|
|
l2sc->Q921_state = ST_MULTIFR;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_EST event rx'd DM
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AE10(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AE10", ("FSM function F_AE10 executing\n"));
|
|
|
|
if(l2sc->rxd_PF == 0)
|
|
{
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
else
|
|
{
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
|
|
l2sc->Q921_state = ST_TEI_ASGD;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_EST event T200 expiry
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AE11(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AE11", ("FSM function F_AE11 executing\n"));
|
|
|
|
if(l2sc->RC >= N200)
|
|
{
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
i4b_mdl_error_ind(l2sc, "F_AE11", MDL_ERR_G);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
l2sc->Q921_state = ST_TEI_ASGD;
|
|
}
|
|
else
|
|
{
|
|
l2sc->RC++;
|
|
|
|
i4b_tx_sabme(l2sc, P1);
|
|
|
|
i4b_T200_start(l2sc);
|
|
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_EST event dl data request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AE12(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AE12", ("FSM function F_AE12 executing\n"));
|
|
|
|
if(l2sc->l3initiated == 0)
|
|
{
|
|
i4b_i_frame_queued_up(l2sc);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_REL event persistent deactivation
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AR05(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AR05", ("FSM function F_AR05 executing\n"));
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Cnf_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_REL event mdl remove request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AR06(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AR06", ("FSM function F_AR06 executing\n"));
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Cnf_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
|
|
/*XXX*/ i4b_mdl_assign_ind(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_REL event rx'd SABME
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AR07(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AR07", ("FSM function F_AR07 executing\n"));
|
|
i4b_tx_dm(l2sc, l2sc->rxd_PF);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_REL event rx'd DISC
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AR08(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AR08", ("FSM function F_AR08 executing\n"));
|
|
MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_IDLE);
|
|
i4b_tx_ua(l2sc, l2sc->rxd_PF);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_REL event rx'd UA
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AR09(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AR09", ("FSM function F_AR09 executing\n"));
|
|
|
|
if(l2sc->rxd_PF)
|
|
{
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Cnf_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
|
|
l2sc->Q921_state = ST_TEI_ASGD;
|
|
}
|
|
else
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_AR09", MDL_ERR_D);
|
|
|
|
l2sc->Q921_state = ST_AW_REL;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_REL event rx'd DM
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AR10(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AR10", ("FSM function F_AR10 executing\n"));
|
|
|
|
if(l2sc->rxd_PF)
|
|
{
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Cnf_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
|
|
l2sc->Q921_state = ST_TEI_ASGD;
|
|
}
|
|
else
|
|
{
|
|
l2sc->Q921_state = ST_AW_REL;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_AW_REL event T200 expiry
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_AR11(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_AR11", ("FSM function F_AR11 executing\n"));
|
|
|
|
if(l2sc->RC >= N200)
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_AR11", MDL_ERR_H);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Cnf_A;
|
|
|
|
l2sc->Q921_state = ST_TEI_ASGD;
|
|
}
|
|
else
|
|
{
|
|
l2sc->RC++;
|
|
|
|
i4b_tx_disc(l2sc, P1);
|
|
|
|
i4b_T200_start(l2sc);
|
|
|
|
l2sc->Q921_state = ST_AW_REL;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event dl establish request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF01(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF01", ("FSM function F_MF01 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
i4b_establish_data_link(l2sc);
|
|
|
|
l2sc->l3initiated = 1;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event persistent deactivation
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF05(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF05", ("FSM function F_MF05 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_stop(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event mdl remove request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF06(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF06", ("FSM function F_MF06 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_stop(l2sc);
|
|
|
|
/*XXX*/ i4b_mdl_assign_ind(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event rx'd SABME
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF07(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF07", ("FSM function F_MF07 executing\n"));
|
|
|
|
i4b_clear_exception_conditions(l2sc);
|
|
|
|
MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_ACTIVE);
|
|
|
|
i4b_tx_ua(l2sc, l2sc->rxd_PF);
|
|
|
|
i4b_mdl_error_ind(l2sc, "F_MF07", MDL_ERR_F);
|
|
|
|
if(l2sc->vs != l2sc->va)
|
|
{
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Est_Ind_A;
|
|
}
|
|
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_start(l2sc);
|
|
|
|
l2sc->vs = 0;
|
|
l2sc->va = 0;
|
|
l2sc->vr = 0;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event rx'd DISC
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF08(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF08", ("FSM function F_MF08 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_IDLE);
|
|
i4b_tx_ua(l2sc, l2sc->rxd_PF);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_stop(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event rx'd UA
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF09(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF09", ("FSM function F_MF09 executing\n"));
|
|
if(l2sc->rxd_PF)
|
|
i4b_mdl_error_ind(l2sc, "F_MF09", MDL_ERR_C);
|
|
else
|
|
i4b_mdl_error_ind(l2sc, "F_MF09", MDL_ERR_D);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event rx'd DM
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF10(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF10", ("FSM function F_MF10 executing\n"));
|
|
|
|
if(l2sc->rxd_PF)
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_MF10", MDL_ERR_B);
|
|
|
|
l2sc->Q921_state = ST_MULTIFR;
|
|
}
|
|
else
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_MF10", MDL_ERR_E);
|
|
|
|
i4b_establish_data_link(l2sc);
|
|
|
|
l2sc->l3initiated = 0;
|
|
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event T200 expiry
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF11(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF11", ("FSM function F_MF11 executing\n"));
|
|
|
|
l2sc->RC = 0;
|
|
|
|
i4b_transmit_enquire(l2sc);
|
|
|
|
l2sc->RC++;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event dl data request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF12(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF12", ("FSM function F_MF12 executing\n"));
|
|
|
|
i4b_i_frame_queued_up(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event dl release request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF13(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF13", ("FSM function F_MF13 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->RC = 0;
|
|
|
|
i4b_tx_disc(l2sc, P1);
|
|
|
|
i4b_T203_stop(l2sc);
|
|
i4b_T200_restart(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event T203 expiry
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF14(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF14", ("FSM function F_MF14 executing\n"));
|
|
|
|
i4b_transmit_enquire(l2sc);
|
|
|
|
l2sc->RC = 0;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event set own rx busy
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF15(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF15", ("FSM function F_MF15 executing\n"));
|
|
|
|
if(l2sc->own_busy == 0)
|
|
{
|
|
l2sc->own_busy = 1;
|
|
|
|
i4b_tx_rnr_response(l2sc, F0); /* wrong in Q.921 03/93 p 64 */
|
|
|
|
l2sc->ack_pend = 0;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event clear own rx busy
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF16(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF16", ("FSM function F_MF16 executing\n"));
|
|
|
|
if(l2sc->own_busy != 0)
|
|
{
|
|
l2sc->own_busy = 0;
|
|
|
|
i4b_tx_rr_response(l2sc, F0); /* wrong in Q.921 03/93 p 64 */
|
|
|
|
l2sc->ack_pend = 0;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event rx'd RR
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF17(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF17", ("FSM function F_MF17 executing\n"));
|
|
|
|
l2sc->peer_busy = 0;
|
|
|
|
if(l2sc->rxd_CR == CR_CMD_FROM_NT)
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
i4b_enquiry_response(l2sc);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_MF17", MDL_ERR_A);
|
|
}
|
|
}
|
|
|
|
if(i4b_l2_nr_ok(l2sc->rxd_NR, l2sc->va, l2sc->vs))
|
|
{
|
|
if(l2sc->rxd_NR == l2sc->vs)
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_restart(l2sc);
|
|
}
|
|
else if(l2sc->rxd_NR != l2sc->va)
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
i4b_T200_restart(l2sc);
|
|
}
|
|
l2sc->Q921_state = ST_MULTIFR;
|
|
}
|
|
else
|
|
{
|
|
i4b_nr_error_recovery(l2sc);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event rx'd REJ
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF18(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF18", ("FSM function F_MF18 executing\n"));
|
|
|
|
l2sc->peer_busy = 0;
|
|
|
|
if(l2sc->rxd_CR == CR_CMD_FROM_NT)
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
i4b_enquiry_response(l2sc);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_MF18", MDL_ERR_A);
|
|
}
|
|
}
|
|
|
|
if(i4b_l2_nr_ok(l2sc->rxd_NR, l2sc->va, l2sc->vs))
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_start(l2sc);
|
|
i4b_invoke_retransmission(l2sc, l2sc->rxd_NR);
|
|
l2sc->Q921_state = ST_MULTIFR;
|
|
}
|
|
else
|
|
{
|
|
i4b_nr_error_recovery(l2sc);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event rx'd RNR
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF19(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF19", ("FSM function F_MF19 executing\n"));
|
|
|
|
l2sc->peer_busy = 1;
|
|
|
|
if(l2sc->rxd_CR == CR_CMD_FROM_NT)
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
i4b_enquiry_response(l2sc);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_MF19", MDL_ERR_A);
|
|
}
|
|
}
|
|
|
|
if(i4b_l2_nr_ok(l2sc->rxd_NR, l2sc->va, l2sc->vs))
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
i4b_T203_stop(l2sc);
|
|
i4b_T200_restart(l2sc);
|
|
l2sc->Q921_state = ST_MULTIFR;
|
|
}
|
|
else
|
|
{
|
|
i4b_nr_error_recovery(l2sc);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_MULTIFR event rx'd FRMR
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_MF20(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_MF20", ("FSM function F_MF20 executing\n"));
|
|
|
|
i4b_mdl_error_ind(l2sc, "F_MF20", MDL_ERR_K);
|
|
|
|
i4b_establish_data_link(l2sc);
|
|
|
|
l2sc->l3initiated = 0;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event dl establish request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR01(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR01", ("FSM function F_TR01 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
i4b_establish_data_link(l2sc);
|
|
|
|
l2sc->l3initiated = 1;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event persistent deactivation
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR05(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR05", ("FSM function F_TR05 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event mdl remove request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR06(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR06", ("FSM function F_TR06 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
|
|
/*XXX*/ i4b_mdl_assign_ind(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event rx'd SABME
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR07(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR07", ("FSM function F_TR07 executing\n"));
|
|
|
|
i4b_clear_exception_conditions(l2sc);
|
|
|
|
MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_ACTIVE);
|
|
|
|
i4b_tx_ua(l2sc, l2sc->rxd_PF);
|
|
|
|
i4b_mdl_error_ind(l2sc, "F_TR07", MDL_ERR_F);
|
|
|
|
if(l2sc->vs != l2sc->va)
|
|
{
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Est_Ind_A;
|
|
}
|
|
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_start(l2sc);
|
|
|
|
l2sc->vs = 0;
|
|
l2sc->va = 0;
|
|
l2sc->vr = 0;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event rx'd DISC
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR08(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR08", ("FSM function F_TR08 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_IDLE);
|
|
i4b_tx_ua(l2sc, l2sc->rxd_PF);
|
|
|
|
l2sc->postfsmarg = l2sc->unit;
|
|
l2sc->postfsmfunc = DL_Rel_Ind_A;
|
|
|
|
i4b_T200_stop(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event rx'd UA
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR09(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR09", ("FSM function F_TR09 executing\n"));
|
|
if(l2sc->rxd_PF)
|
|
i4b_mdl_error_ind(l2sc, "F_TR09", MDL_ERR_C);
|
|
else
|
|
i4b_mdl_error_ind(l2sc, "F_TR09", MDL_ERR_D);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event rx'd DM
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR10(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR10", ("FSM function F_TR10 executing\n"));
|
|
|
|
if(l2sc->rxd_PF)
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_TR10", MDL_ERR_B);
|
|
}
|
|
else
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_TR10", MDL_ERR_E);
|
|
}
|
|
|
|
i4b_establish_data_link(l2sc);
|
|
|
|
l2sc->l3initiated = 0;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event T200 expiry
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR11(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR11", ("FSM function F_TR11 executing\n"));
|
|
|
|
if(l2sc->RC >= N200)
|
|
{
|
|
i4b_mdl_error_ind(l2sc, "F_TR11", MDL_ERR_I);
|
|
|
|
i4b_establish_data_link(l2sc);
|
|
|
|
l2sc->l3initiated = 0;
|
|
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
else
|
|
{
|
|
i4b_transmit_enquire(l2sc);
|
|
|
|
l2sc->RC++;
|
|
|
|
l2sc->Q921_state = ST_TIMREC;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event dl data request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR12(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR12", ("FSM function F_TR12 executing\n"));
|
|
|
|
i4b_i_frame_queued_up(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event dl release request
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR13(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR13", ("FSM function F_TR13 executing\n"));
|
|
|
|
i4b_Dcleanifq(&l2sc->i_queue);
|
|
|
|
l2sc->RC = 0;
|
|
|
|
i4b_tx_disc(l2sc, P1);
|
|
|
|
i4b_T200_restart(l2sc);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event set own rx busy
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR15(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR15", ("FSM function F_TR15 executing\n"));
|
|
|
|
if(l2sc->own_busy == 0)
|
|
{
|
|
l2sc->own_busy = 1;
|
|
|
|
i4b_tx_rnr_response(l2sc, F0);
|
|
|
|
l2sc->ack_pend = 0;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event clear own rx busy
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR16(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR16", ("FSM function F_TR16 executing\n"));
|
|
|
|
if(l2sc->own_busy != 0)
|
|
{
|
|
l2sc->own_busy = 0;
|
|
|
|
i4b_tx_rr_response(l2sc, F0); /* this is wrong */
|
|
/* in Q.921 03/93 p 74 ! */
|
|
l2sc->ack_pend = 0;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event rx'd RR
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR17(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR17", ("FSM function F_TR17 executing\n"));
|
|
|
|
l2sc->peer_busy = 0;
|
|
|
|
if(l2sc->rxd_CR == CR_CMD_FROM_NT)
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
i4b_enquiry_response(l2sc);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
if(i4b_l2_nr_ok(l2sc->rxd_NR, l2sc->va, l2sc->vs))
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_start(l2sc);
|
|
i4b_invoke_retransmission(l2sc, l2sc->rxd_NR);
|
|
l2sc->Q921_state = ST_MULTIFR;
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
i4b_nr_error_recovery(l2sc);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(i4b_l2_nr_ok(l2sc->rxd_NR, l2sc->va, l2sc->vs))
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
l2sc->Q921_state = ST_TIMREC;
|
|
}
|
|
else
|
|
{
|
|
i4b_nr_error_recovery(l2sc);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR18(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR18", ("FSM function F_TR18 executing\n"));
|
|
|
|
l2sc->peer_busy = 0;
|
|
|
|
if(l2sc->rxd_CR == CR_CMD_FROM_NT)
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
i4b_enquiry_response(l2sc);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
if(i4b_l2_nr_ok(l2sc->rxd_NR, l2sc->va, l2sc->vs))
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
i4b_T200_stop(l2sc);
|
|
i4b_T203_start(l2sc);
|
|
i4b_invoke_retransmission(l2sc, l2sc->rxd_NR);
|
|
l2sc->Q921_state = ST_MULTIFR;
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
i4b_nr_error_recovery(l2sc);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(i4b_l2_nr_ok(l2sc->rxd_NR, l2sc->va, l2sc->vs))
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
l2sc->Q921_state = ST_TIMREC;
|
|
}
|
|
else
|
|
{
|
|
i4b_nr_error_recovery(l2sc);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event rx'd RNR
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR19(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR19", ("FSM function F_TR19 executing\n"));
|
|
|
|
l2sc->peer_busy = 0;
|
|
|
|
if(l2sc->rxd_CR == CR_CMD_FROM_NT)
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
i4b_enquiry_response(l2sc);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(l2sc->rxd_PF == 1)
|
|
{
|
|
if(i4b_l2_nr_ok(l2sc->rxd_NR, l2sc->va, l2sc->vs))
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
i4b_T200_restart(l2sc);
|
|
i4b_invoke_retransmission(l2sc, l2sc->rxd_NR);
|
|
l2sc->Q921_state = ST_MULTIFR;
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
i4b_nr_error_recovery(l2sc);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(i4b_l2_nr_ok(l2sc->rxd_NR, l2sc->va, l2sc->vs))
|
|
{
|
|
l2sc->va = l2sc->rxd_NR;
|
|
l2sc->Q921_state = ST_TIMREC;
|
|
}
|
|
else
|
|
{
|
|
i4b_nr_error_recovery(l2sc);
|
|
l2sc->Q921_state = ST_AW_EST;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* FSM state ST_TIMREC event rx'd FRMR
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
F_TR20(l2_softc_t *l2sc)
|
|
{
|
|
DBGL2(L2_F_MSG, "F_TR20", ("FSM function F_TR20 executing\n"));
|
|
|
|
i4b_mdl_error_ind(l2sc, "F_TR20", MDL_ERR_K);
|
|
|
|
i4b_establish_data_link(l2sc);
|
|
|
|
l2sc->l3initiated = 0;
|
|
}
|
|
|
|
#endif /* NI4BQ921 > 0 */
|