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freebsd-skq/sys/i4b/layer2/i4b_l2timer.c

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Initial entry of ISDN4BSD into the FreeBSD tree. ISDN4BSD is the work of our brand-new comitter: Hellmuth Michaelis, who has done a tremendous amount of work to bring us this far. There are still some outstanding issues and files to bring into the tree, and for now it will be needed to pick up all the extra docs from the isdn4bsd release. It is probably also a very good idea to subscribe to the isdn@freebsd.org mailing list before you try this out. These files correspond to release "beta Version 0.70.00 / December 1998" from Hellmuth.
1998-12-27 21:47:14 +00:00
/*
* Copyright (c) 1997, 1998 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 1.12 1998/12/05 18:05:15 hm Exp $
*
* last edit-date: [Sat Dec 5 18:29:13 1998]
*
*---------------------------------------------------------------------------*/
#ifdef __FreeBSD__
#include "i4bq921.h"
#else
#define NI4BQ921 1
#endif
#if NI4BQ921 > 0
#include <sys/param.h>
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
#include <sys/ioccom.h>
#else
#include <sys/ioctl.h>
#endif
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <net/if.h>
#ifdef __FreeBSD__
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#else
#include <i4b/i4b_debug.h>
#include <i4b/i4b_ioctl.h>
#endif
#include <i4b/include/i4b_global.h>
#include <i4b/include/i4b_l1l2.h>
#include <i4b/include/i4b_l2l3.h>
#include <i4b/include/i4b_isdnq931.h>
#include <i4b/include/i4b_mbuf.h>
#include <i4b/layer2/i4b_l2.h>
#include <i4b/layer2/i4b_l2fsm.h>
/*---------------------------------------------------------------------------*
* Q.921 timer T200 timeout function
*---------------------------------------------------------------------------*/
static void
i4b_T200_timeout(l2_softc_t *l2sc)
{
DBGL2(L2_T_ERR, "i4b_T200_timeout", ("unit %d, RC = %d\n", l2sc->unit, l2sc->RC));
i4b_next_l2state(l2sc, EV_T200EXP);
}
/*---------------------------------------------------------------------------*
* Q.921 timer T200 start
*---------------------------------------------------------------------------*/
void
i4b_T200_start(l2_softc_t *l2sc)
{
DBGL2(L2_T_MSG, "i4b_T200_start", ("unit %d\n", l2sc->unit));
l2sc->T200 = TIMER_ACTIVE;
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
l2sc->T200_callout = timeout((TIMEOUT_FUNC_T)i4b_T200_timeout, (void *)l2sc, T200DEF);
#else
timeout((TIMEOUT_FUNC_T)i4b_T200_timeout, (void *)l2sc, T200DEF);
#endif
}
/*---------------------------------------------------------------------------*
* Q.921 timer T200 stop
*---------------------------------------------------------------------------*/
void
i4b_T200_stop(l2_softc_t *l2sc)
{
if(l2sc->T200 != TIMER_IDLE)
{
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
untimeout((TIMEOUT_FUNC_T)i4b_T200_timeout, (void *)l2sc, l2sc->T200_callout);
#else
untimeout((TIMEOUT_FUNC_T)i4b_T200_timeout, (void *)l2sc);
#endif
l2sc->T200 = TIMER_IDLE;
}
DBGL2(L2_T_MSG, "i4b_T200_stop", ("unit %d\n", l2sc->unit));
}
/*---------------------------------------------------------------------------*
* Q.921 timer T200 restart
*---------------------------------------------------------------------------*/
void
i4b_T200_restart(l2_softc_t *l2sc)
{
if(l2sc->T200 != TIMER_IDLE)
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
untimeout((TIMEOUT_FUNC_T)i4b_T200_timeout, (void *)l2sc, l2sc->T200_callout);
#else
untimeout((TIMEOUT_FUNC_T)i4b_T200_timeout, (void *)l2sc);
#endif
else
l2sc->T200 = TIMER_ACTIVE;
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
l2sc->T200_callout = timeout((TIMEOUT_FUNC_T)i4b_T200_timeout, (void *)l2sc, T200DEF);
#else
timeout((TIMEOUT_FUNC_T)i4b_T200_timeout, (void *)l2sc, T200DEF);
#endif
DBGL2(L2_T_MSG, "i4b_T200_restart", ("unit %d\n", l2sc->unit));
}
/*---------------------------------------------------------------------------*
* Q.921 timer T202 timeout function
*---------------------------------------------------------------------------*/
static void
i4b_T202_timeout(l2_softc_t *l2sc)
{
DBGL2(L2_T_ERR, "i4b_T202_timeout", ("unit %d, N202 = %d\n", l2sc->unit, l2sc->N202));
if(--(l2sc->N202))
{
(*l2sc->T202func)(l2sc);
}
}
/*---------------------------------------------------------------------------*
* Q.921 timer T202 start
*---------------------------------------------------------------------------*/
void
i4b_T202_start(l2_softc_t *l2sc)
{
DBGL2(L2_T_MSG, "i4b_T202_start", ("unit %d\n", l2sc->unit));
l2sc->N202 = N202DEF;
l2sc->T202 = TIMER_ACTIVE;
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
l2sc->T202_callout = timeout((TIMEOUT_FUNC_T)i4b_T202_timeout, (void *)l2sc, T202DEF);
#else
timeout((TIMEOUT_FUNC_T)i4b_T202_timeout, (void *)l2sc, T202DEF);
#endif
}
/*---------------------------------------------------------------------------*
* Q.921 timer T202 stop
*---------------------------------------------------------------------------*/
void
i4b_T202_stop(l2_softc_t *l2sc)
{
if(l2sc->T202 != TIMER_IDLE)
{
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
untimeout((TIMEOUT_FUNC_T)i4b_T202_timeout, (void *)l2sc, l2sc->T202_callout);
#else
untimeout((TIMEOUT_FUNC_T)i4b_T202_timeout, (void *)l2sc);
#endif
l2sc->T202 = TIMER_IDLE;
}
DBGL2(L2_T_MSG, "i4b_T202_stop", ("unit %d\n", l2sc->unit));
}
/*---------------------------------------------------------------------------*
* Q.921 timer T203 timeout function
*---------------------------------------------------------------------------*/
#if I4B_T203_ACTIVE
static void
i4b_T203_timeout(l2_softc_t *l2sc)
{
DBGL2(L2_T_ERR, "i4b_T203_timeout", ("unit %d\n", l2sc->unit));
i4b_next_l2state(l2sc, EV_T203EXP);
}
#endif
/*---------------------------------------------------------------------------*
* Q.921 timer T203 start
*---------------------------------------------------------------------------*/
void
i4b_T203_start(l2_softc_t *l2sc)
{
#if I4B_T203_ACTIVE
DBGL2(L2_T_MSG, "i4b_T203_start", ("unit %d\n", l2sc->unit));
l2sc->T203 = TIMER_ACTIVE;
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
l2sc->T203_callout = timeout((TIMEOUT_FUNC_T)i4b_T203_timeout, (void *)l2sc, T203DEF);
#else
timeout((TIMEOUT_FUNC_T)i4b_T203_timeout, (void *)l2sc, T203DEF);
#endif
#endif
}
/*---------------------------------------------------------------------------*
* Q.921 timer T203 stop
*---------------------------------------------------------------------------*/
void
i4b_T203_stop(l2_softc_t *l2sc)
{
#if I4B_T203_ACTIVE
if(l2sc->T203 != TIMER_IDLE)
{
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
untimeout((TIMEOUT_FUNC_T)i4b_T203_timeout, (void *)l2sc, l2sc->T203_callout);
#else
untimeout((TIMEOUT_FUNC_T)i4b_T203_timeout, (void *)l2sc);
#endif
l2sc->T203 = TIMER_IDLE;
}
DBGL2(L2_T_MSG, "i4b_T203_stop", ("unit %d\n", l2sc->unit));
#endif
}
/*---------------------------------------------------------------------------*
* Q.921 timer T203 restart
*---------------------------------------------------------------------------*/
void
i4b_T203_restart(l2_softc_t *l2sc)
{
#if I4B_T203_ACTIVE
if(l2sc->T203 != TIMER_IDLE)
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
untimeout((TIMEOUT_FUNC_T)i4b_T203_timeout, (void *)l2sc, l2sc->T203_callout);
#else
untimeout((TIMEOUT_FUNC_T)i4b_T203_timeout, (void *)l2sc);
#endif
else
l2sc->T203 = TIMER_ACTIVE;
#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001
l2sc->T203_callout = timeout((TIMEOUT_FUNC_T)i4b_T203_timeout, (void *)l2sc, T203DEF);
#else
timeout((TIMEOUT_FUNC_T)i4b_T203_timeout, (void *)l2sc, T203DEF);
#endif
DBGL2(L2_T_MSG, "i4b_T203_restart", ("unit %d\n", l2sc->unit));
#endif
}
#endif /* NI4BQ921 > 0 */
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