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freebsd/sys/i4b/layer2/i4b_l2timer.c
Peter Wemm c3aac50f28 $Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00

297 lines
8.8 KiB
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/*
* Copyright (c) 1997, 1999 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
* --------------------------------------
*
* $FreeBSD$
*
* last edit-date: [Wed Apr 21 09:17:58 1999]
*
*---------------------------------------------------------------------------*/
#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)
{
if(l2sc->T200 == TIMER_ACTIVE)
return;
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)
{
CRIT_VAR;
CRIT_BEG;
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;
}
CRIT_END;
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)
{
CRIT_VAR;
CRIT_BEG;
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
CRIT_END;
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)
{
if (l2sc->N202 == TIMER_ACTIVE)
return;
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)
{
CRIT_VAR;
CRIT_BEG;
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;
}
CRIT_END;
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
if (l2sc->T203 == TIMER_ACTIVE)
return;
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
CRIT_VAR;
CRIT_BEG;
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;
}
CRIT_END;
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
CRIT_VAR;
CRIT_BEG;
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
CRIT_END;
DBGL2(L2_T_MSG, "i4b_T203_restart", ("unit %d\n", l2sc->unit));
#endif
}
#endif /* NI4BQ921 > 0 */
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