258 lines
7.0 KiB
C
258 lines
7.0 KiB
C
/*
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* Copyright (c) 1997, 2000 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_l2timer.c - layer 2 timer handling
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* --------------------------------------
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*
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* $Id: i4b_l2timer.c,v 1.1.1.1 2001/01/05 12:50:06 martin Exp $
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*
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* $FreeBSD$
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*
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* last edit-date: [Fri Jan 5 11:33:47 2001]
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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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#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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#if defined(__NetBSD__) && __NetBSD_Version__ >= 104230000
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#include <sys/callout.h>
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#endif
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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 <netisdn/i4b_debug.h>
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#include <netisdn/i4b_ioctl.h>
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#endif
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#include <netisdn/i4b_global.h>
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#include <netisdn/i4b_l1l2.h>
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#include <netisdn/i4b_l2l3.h>
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#include <netisdn/i4b_isdnq931.h>
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#include <netisdn/i4b_mbuf.h>
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#include <netisdn/i4b_l2.h>
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#include <netisdn/i4b_l2fsm.h>
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/*---------------------------------------------------------------------------*
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* Q.921 timer T200 timeout function
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*---------------------------------------------------------------------------*/
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static void
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i4b_T200_timeout(l2_softc_t *l2sc)
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{
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NDBGL2(L2_T_ERR, "unit %d, RC = %d", l2sc->unit, l2sc->RC);
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i4b_next_l2state(l2sc, EV_T200EXP);
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}
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/*---------------------------------------------------------------------------*
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* Q.921 timer T200 start
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*---------------------------------------------------------------------------*/
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void
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i4b_T200_start(l2_softc_t *l2sc)
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{
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if(l2sc->T200 == TIMER_ACTIVE)
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return;
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NDBGL2(L2_T_MSG, "unit %d", l2sc->unit);
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l2sc->T200 = TIMER_ACTIVE;
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START_TIMER(l2sc->T200_callout, i4b_T200_timeout, l2sc, T200DEF);
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}
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/*---------------------------------------------------------------------------*
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* Q.921 timer T200 stop
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*---------------------------------------------------------------------------*/
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void
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i4b_T200_stop(l2_softc_t *l2sc)
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{
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CRIT_VAR;
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CRIT_BEG;
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if(l2sc->T200 != TIMER_IDLE)
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{
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STOP_TIMER(l2sc->T200_callout, i4b_T200_timeout, l2sc);
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l2sc->T200 = TIMER_IDLE;
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}
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CRIT_END;
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NDBGL2(L2_T_MSG, "unit %d", l2sc->unit);
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}
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/*---------------------------------------------------------------------------*
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* Q.921 timer T200 restart
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*---------------------------------------------------------------------------*/
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void
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i4b_T200_restart(l2_softc_t *l2sc)
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{
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CRIT_VAR;
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CRIT_BEG;
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if(l2sc->T200 != TIMER_IDLE)
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{
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STOP_TIMER(l2sc->T200_callout, i4b_T200_timeout, l2sc);
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}
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else
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{
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l2sc->T200 = TIMER_ACTIVE;
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}
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START_TIMER(l2sc->T200_callout, i4b_T200_timeout, l2sc, T200DEF);
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CRIT_END;
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NDBGL2(L2_T_MSG, "unit %d", l2sc->unit);
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}
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/*---------------------------------------------------------------------------*
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* Q.921 timer T202 timeout function
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*---------------------------------------------------------------------------*/
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static void
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i4b_T202_timeout(l2_softc_t *l2sc)
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{
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NDBGL2(L2_T_ERR, "unit %d, N202 = %d", l2sc->unit, l2sc->N202);
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if(--(l2sc->N202))
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{
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(*l2sc->T202func)(l2sc);
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}
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}
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/*---------------------------------------------------------------------------*
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* Q.921 timer T202 start
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*---------------------------------------------------------------------------*/
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void
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i4b_T202_start(l2_softc_t *l2sc)
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{
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if (l2sc->N202 == TIMER_ACTIVE)
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return;
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NDBGL2(L2_T_MSG, "unit %d", l2sc->unit);
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l2sc->N202 = N202DEF;
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l2sc->T202 = TIMER_ACTIVE;
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START_TIMER(l2sc->T202_callout, i4b_T202_timeout, l2sc, T202DEF);
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}
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/*---------------------------------------------------------------------------*
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* Q.921 timer T202 stop
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*---------------------------------------------------------------------------*/
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void
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i4b_T202_stop(l2_softc_t *l2sc)
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{
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CRIT_VAR;
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CRIT_BEG;
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if(l2sc->T202 != TIMER_IDLE)
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{
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STOP_TIMER(l2sc->T202_callout, i4b_T202_timeout, l2sc);
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l2sc->T202 = TIMER_IDLE;
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}
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CRIT_END;
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NDBGL2(L2_T_MSG, "unit %d", l2sc->unit);
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}
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/*---------------------------------------------------------------------------*
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* Q.921 timer T203 timeout function
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*---------------------------------------------------------------------------*/
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#if I4B_T203_ACTIVE
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static void
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i4b_T203_timeout(l2_softc_t *l2sc)
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{
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NDBGL2(L2_T_ERR, "unit %d", l2sc->unit);
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i4b_next_l2state(l2sc, EV_T203EXP);
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}
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#endif
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/*---------------------------------------------------------------------------*
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* Q.921 timer T203 start
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*---------------------------------------------------------------------------*/
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void
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i4b_T203_start(l2_softc_t *l2sc)
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{
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#if I4B_T203_ACTIVE
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if (l2sc->T203 == TIMER_ACTIVE)
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return;
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NDBGL2(L2_T_MSG, "unit %d", l2sc->unit);
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l2sc->T203 = TIMER_ACTIVE;
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START_TIMER(l2sc->T203_callout, i4b_T203_timeout, l2sc, T203DEF);
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#endif
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}
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/*---------------------------------------------------------------------------*
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* Q.921 timer T203 stop
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*---------------------------------------------------------------------------*/
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void
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i4b_T203_stop(l2_softc_t *l2sc)
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{
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#if I4B_T203_ACTIVE
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CRIT_VAR;
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CRIT_BEG;
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if(l2sc->T203 != TIMER_IDLE)
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{
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STOP_TIMER(l2sc->T203_callout, i4b_T203_timeout, l2sc);
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l2sc->T203 = TIMER_IDLE;
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}
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CRIT_END;
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NDBGL2(L2_T_MSG, "unit %d", l2sc->unit);
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#endif
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}
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/*---------------------------------------------------------------------------*
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* Q.921 timer T203 restart
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*---------------------------------------------------------------------------*/
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void
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i4b_T203_restart(l2_softc_t *l2sc)
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{
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#if I4B_T203_ACTIVE
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CRIT_VAR;
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CRIT_BEG;
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if(l2sc->T203 != TIMER_IDLE)
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{
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STOP_TIMER(l2sc->T203_callout, i4b_T203_timerout, l2sc);
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}
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else
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{
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l2sc->T203 = TIMER_ACTIVE;
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}
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START_TIMER(l2sc->T203_callout, i4b_T203_timerout, l2sc, T203DEF);
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CRIT_END;
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NDBGL2(L2_T_MSG, "unit %d", l2sc->unit);
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#endif
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}
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#endif /* NI4BQ921 > 0 */
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