NetBSD-5.0.2/sys/netisdn/i4b_l2timer.c
/*
* Copyright (c) 1997, 2000 Hellmuth Michaelis. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*---------------------------------------------------------------------------
*
* i4b_l2timer.c - layer 2 timer handling
* --------------------------------------
*
* $Id: i4b_l2timer.c,v 1.11 2006/11/16 01:33:49 christos Exp $
*
* $FreeBSD$
*
* last edit-date: [Fri Jan 5 11:33:47 2001]
*
*---------------------------------------------------------------------------*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: i4b_l2timer.c,v 1.11 2006/11/16 01:33:49 christos Exp $");
#ifdef __FreeBSD__
#include "i4bq921.h"
#else
#define NI4BQ921 1
#endif
#if NI4BQ921 > 0
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <net/if.h>
#if defined(__NetBSD__) && __NetBSD_Version__ >= 104230000
#include <sys/callout.h>
#endif
#ifdef __FreeBSD__
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#else
#include <netisdn/i4b_debug.h>
#include <netisdn/i4b_ioctl.h>
#endif
#include <netisdn/i4b_global.h>
#include <netisdn/i4b_l2.h>
#include <netisdn/i4b_l1l2.h>
#include <netisdn/i4b_isdnq931.h>
#include <netisdn/i4b_mbuf.h>
#include <netisdn/i4b_l2fsm.h>
#include <netisdn/i4b_l3l4.h>
/*---------------------------------------------------------------------------*
* Q.921 timer T200 timeout function
*---------------------------------------------------------------------------*/
static void
i4b_T200_timeout(l2_softc_t *l2sc)
{
NDBGL2(L2_T_ERR, "isdnif %d, RC = %d", l2sc->drv->isdnif, l2sc->RC);
i4b_next_l2state(l2sc, l2sc->drv, EV_T200EXP);
}
/*---------------------------------------------------------------------------*
* Q.921 timer T200 start
*---------------------------------------------------------------------------*/
void
i4b_T200_start(l2_softc_t *l2sc)
{
if(l2sc->T200 == TIMER_ACTIVE)
return;
NDBGL2(L2_T_MSG, "isdnif %d", l2sc->drv->isdnif);
l2sc->T200 = TIMER_ACTIVE;
START_TIMER(l2sc->T200_callout, i4b_T200_timeout, l2sc, T200DEF);
}
/*---------------------------------------------------------------------------*
* Q.921 timer T200 stop
*---------------------------------------------------------------------------*/
void
i4b_T200_stop(l2_softc_t *l2sc)
{
int s;
s = splnet();
if(l2sc->T200 != TIMER_IDLE)
{
STOP_TIMER(l2sc->T200_callout, i4b_T200_timeout, l2sc);
l2sc->T200 = TIMER_IDLE;
}
splx(s);
NDBGL2(L2_T_MSG, "isdnif %d", l2sc->drv->isdnif);
}
/*---------------------------------------------------------------------------*
* Q.921 timer T200 restart
*---------------------------------------------------------------------------*/
void
i4b_T200_restart(l2_softc_t *l2sc)
{
int s;
s = splnet();
if(l2sc->T200 != TIMER_IDLE)
{
STOP_TIMER(l2sc->T200_callout, i4b_T200_timeout, l2sc);
}
else
{
l2sc->T200 = TIMER_ACTIVE;
}
START_TIMER(l2sc->T200_callout, i4b_T200_timeout, l2sc, T200DEF);
splx(s);
NDBGL2(L2_T_MSG, "isdnif %d", l2sc->drv->isdnif);
}
/*---------------------------------------------------------------------------*
* Q.921 timer T202 timeout function
*---------------------------------------------------------------------------*/
static void
i4b_T202_timeout(l2_softc_t *l2sc)
{
NDBGL2(L2_T_ERR, "isdnif %d, N202 = %d", l2sc->drv->isdnif, l2sc->N202);
if(--(l2sc->N202))
{
(*l2sc->T202func)(l2sc);
}
}
/*---------------------------------------------------------------------------*
* Q.921 timer T202 start
*---------------------------------------------------------------------------*/
void
i4b_T202_start(l2_softc_t *l2sc)
{
if (l2sc->N202 == TIMER_ACTIVE)
return;
NDBGL2(L2_T_MSG, "isdnif %d", l2sc->drv->isdnif);
l2sc->N202 = N202DEF;
l2sc->T202 = TIMER_ACTIVE;
START_TIMER(l2sc->T202_callout, i4b_T202_timeout, l2sc, T202DEF);
}
/*---------------------------------------------------------------------------*
* Q.921 timer T202 stop
*---------------------------------------------------------------------------*/
void
i4b_T202_stop(l2_softc_t *l2sc)
{
int s;
s = splnet();
if(l2sc->T202 != TIMER_IDLE)
{
STOP_TIMER(l2sc->T202_callout, i4b_T202_timeout, l2sc);
l2sc->T202 = TIMER_IDLE;
}
splx(s);
NDBGL2(L2_T_MSG, "isdnif %d", l2sc->drv->isdnif);
}
/*---------------------------------------------------------------------------*
* Q.921 timer T203 timeout function
*---------------------------------------------------------------------------*/
#if I4B_T203_ACTIVE
static void
i4b_T203_timeout(l2_softc_t *l2sc)
{
NDBGL2(L2_T_ERR, "isdnif %d", l2sc->isdnif);
i4b_next_l2state(l2sc, EV_T203EXP);
}
#endif
/*---------------------------------------------------------------------------*
* Q.921 timer T203 start
*---------------------------------------------------------------------------*/
void
i4b_T203_start(l2_softc_t *l2sc)
{
#if I4B_T203_ACTIVE
if (l2sc->T203 == TIMER_ACTIVE)
return;
NDBGL2(L2_T_MSG, "isdnif %d", l2sc->isdnif);
l2sc->T203 = TIMER_ACTIVE;
START_TIMER(l2sc->T203_callout, i4b_T203_timeout, l2sc, T203DEF);
#endif
}
/*---------------------------------------------------------------------------*
* Q.921 timer T203 stop
*---------------------------------------------------------------------------*/
void
i4b_T203_stop(l2_softc_t *l2sc)
{
#if I4B_T203_ACTIVE
int s;
s = splnet();
if(l2sc->T203 != TIMER_IDLE)
{
STOP_TIMER(l2sc->T203_callout, i4b_T203_timeout, l2sc);
l2sc->T203 = TIMER_IDLE;
}
splx(s);
NDBGL2(L2_T_MSG, "isdnif %d", l2sc->isdnif);
#endif
}
/*---------------------------------------------------------------------------*
* Q.921 timer T203 restart
*---------------------------------------------------------------------------*/
void
i4b_T203_restart(l2_softc_t *l2sc)
{
#if I4B_T203_ACTIVE
int s;
s = splnet();
if(l2sc->T203 != TIMER_IDLE)
{
STOP_TIMER(l2sc->T203_callout, i4b_T203_timerout, l2sc);
}
else
{
l2sc->T203 = TIMER_ACTIVE;
}
START_TIMER(l2sc->T203_callout, i4b_T203_timerout, l2sc, T203DEF);
splx(s);
NDBGL2(L2_T_MSG, "isdnif %d", l2sc->isdnif);
#endif
}
#endif /* NI4BQ921 > 0 */