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NetBSD/sys/netisdn/i4b_l2fsm.c
hubertf 142c2a33ba Remove duplicate #includes, patch contributed in private mail 
by Slava Semushin <slava.semushin@gmail.com>.

To verify that no nasty side effects of duplicate includes (or their
removal) have an effect here, I've compiled an i386/ALL kernel with
and without the patch, and the only difference in the resulting .o
files was in shifted line numbers in some assert() calls.
The comparison of the .o files was based on the output of "objdump -D".

Thanks to martin@ for the input on testing.
2007-01-24 13:08:11 +00:00

1603 lines
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/*
* 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_l2fsm.c - layer 2 FSM
* -------------------------
*
* $Id: i4b_l2fsm.c,v 1.12 2007/01/24 13:08:15 hubertf Exp $
*
* $FreeBSD$
*
* last edit-date: [Fri Jan 5 11:33:47 2001]
*
*---------------------------------------------------------------------------*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: i4b_l2fsm.c,v 1.12 2007/01/24 13:08:15 hubertf 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>
#if DO_I4B_DEBUG
static const char *l2state_text[N_STATES] = {
"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"
};
static const char *l2event_text[N_EVENTS] = {
"EV_DLESTRQ",
"EV_DLUDTRQ",
"EV_MDASGRQ",
"EV_MDERRRS",
"EV_PSDEACT",
"EV_MDREMRQ",
"EV_RXSABME",
"EV_RXDISC",
"EV_RXUA",
"EV_RXDM",
"EV_T200EXP",
"EV_DLDATRQ",
"EV_DLRELRQ",
"EV_T203EXP",
"EV_OWNBUSY",
"EV_OWNRDY",
"EV_RXRR",
"EV_RXREJ",
"EV_RXRNR",
"EV_RXFRMR",
"Illegal Event"
};
#endif
static void F_TU01 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TU03 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TA03 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TA04 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TA05 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TE03 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TE04 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TE05 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_T01 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_T05 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_T06 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_T07 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_T08 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_T09 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_T10 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_T13 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AE01 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AE05 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AE06 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AE07 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AE08 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AE09 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AE10 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AE11 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AE12 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AR05 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AR06 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AR07 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AR08 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AR09 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AR10 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_AR11 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF01 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF05 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF06 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF07 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF08 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF09 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF10 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF11 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF12 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF13 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF14 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF15 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF16 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF17 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF18 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF19 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_MF20 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR01 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR05 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR06 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR07 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR08 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR09 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR10 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR11 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR12 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR13 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR15 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR16 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR17 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR18 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR19 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_TR20 __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_ILL __P((l2_softc_t *, struct isdn_l3_driver *));
static void F_NCNA __P((l2_softc_t *, struct isdn_l3_driver *));
/*---------------------------------------------------------------------------*
* FSM illegal state default action
*---------------------------------------------------------------------------*/
static void
F_ILL(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_ERR, "FSM function F_ILL executing");
}
/*---------------------------------------------------------------------------*
* FSM No change, No action
*---------------------------------------------------------------------------*/
static void
F_NCNA(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_NCNA executing");
}
/*---------------------------------------------------------------------------*
* layer 2 state transition table
*---------------------------------------------------------------------------*/
struct l2state_tab {
void (*func) __P((l2_softc_t *, struct isdn_l3_driver *)); /* function to execute */
int newstate; /* next state */
} l2state_tab[N_EVENTS][N_STATES] = {
/* 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 */
/* -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} },
/*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} }
};
/*---------------------------------------------------------------------------*
* event handler, executes function and sets new state
*---------------------------------------------------------------------------*/
void i4b_next_l2state(l2_softc_t *l2sc, struct isdn_l3_driver *drv, int event)
{
int currstate, newstate;
int (*savpostfsmfunc)(struct isdn_l3_driver *) = NULL;
/* check event number */
if(event > N_EVENTS)
panic("i4b_l2fsm.c: event > N_EVENTS");
/* get current state and check it */
if((currstate = l2sc->Q921_state) > N_STATES) /* failsafe */
panic("i4b_l2fsm.c: currstate > N_STATES");
/* get new state and check it */
if((newstate = l2state_tab[event][currstate].newstate) > N_STATES)
panic("i4b_l2fsm.c: newstate > N_STATES");
if(newstate != ST_SUBSET)
{ /* state function does NOT set new state */
NDBGL2(L2_F_MSG, "FSM event [%s]: [%s/%d => %s/%d]",
l2event_text[event],
l2state_text[currstate], currstate,
l2state_text[newstate], newstate);
}
/* execute state transition function */
(*l2state_tab[event][currstate].func)(l2sc, drv);
if(newstate == ST_SUBSET)
{ /* state function DOES set new state */
NDBGL2(L2_F_MSG, "FSM S-event [%s]: [%s => %s]", l2event_text[event],
l2state_text[currstate],
l2state_text[l2sc->Q921_state]);
}
/* check for illegal new state */
if(newstate == ST_ILL)
{
newstate = currstate;
NDBGL2(L2_F_ERR, "FSM illegal state, state = %s, event = %s!",
l2state_text[currstate],
l2event_text[event]);
}
/* check if state machine function has to set new state */
if(newstate != ST_SUBSET)
l2sc->Q921_state = newstate; /* no, we set new state */
if(l2sc->postfsmfunc != NULL)
{
NDBGL2(L2_F_MSG, "FSM executing postfsmfunc!");
/* try to avoid an endless loop */
savpostfsmfunc = l2sc->postfsmfunc;
l2sc->postfsmfunc = NULL;
(*savpostfsmfunc)(l2sc->postfsmarg);
}
}
#if DO_I4B_DEBUG
/*---------------------------------------------------------------------------*
* return pointer to current state description
*---------------------------------------------------------------------------*/
const char *i4b_print_l2state(l2_softc_t *l2sc)
{
return(l2state_text[l2sc->Q921_state]);
}
#endif
/*---------------------------------------------------------------------------*
* FSM state ST_TEI_UNAS event dl establish request
*---------------------------------------------------------------------------*/
static void
F_TU01(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TU01 executing");
i4b_mdl_assign_ind(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_TEI_UNAS event mdl assign request
*---------------------------------------------------------------------------*/
static void
F_TU03(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TU03 executing");
}
/*---------------------------------------------------------------------------*
* FSM state ST_ASG_AW_TEI event mdl assign request
*---------------------------------------------------------------------------*/
static void
F_TA03(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TA03 executing");
}
/*---------------------------------------------------------------------------*
* FSM state ST_ASG_AW_TEI event mdl error response
*---------------------------------------------------------------------------*/
static void
F_TA04(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TA04 executing");
}
/*---------------------------------------------------------------------------*
* FSM state ST_ASG_AW_TEI event persistent deactivation
*---------------------------------------------------------------------------*/
static void
F_TA05(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TA05 executing");
}
/*---------------------------------------------------------------------------*
* FSM state ST_EST_AW_TEI event mdl assign request
*---------------------------------------------------------------------------*/
static void
F_TE03(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TE03 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TE04 executing");
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
}
/*---------------------------------------------------------------------------*
* FSM state ST_EST_AW_TEI event persistent deactivation
*---------------------------------------------------------------------------*/
static void
F_TE05(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TE05 executing");
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
}
/*---------------------------------------------------------------------------*
* FSM state ST_TEI_ASGD event dl establish request
*---------------------------------------------------------------------------*/
static void
F_T01(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_T01 executing");
i4b_establish_data_link(l2sc);
l2sc->l3initiated = 1;
}
/*---------------------------------------------------------------------------*
* FSM state ST_TEI_ASGD event persistent deactivation
*---------------------------------------------------------------------------*/
static void
F_T05(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_T05 executing");
}
/*---------------------------------------------------------------------------*
* FSM state ST_TEI_ASGD event mdl remove request
*---------------------------------------------------------------------------*/
static void
F_T06(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_T06 executing");
/*XXX*/ i4b_mdl_assign_ind(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_TEI_ASGD event rx'd SABME
*---------------------------------------------------------------------------*/
static void
F_T07(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_T07 executing");
/* 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);
i4b_mdl_status_ind(l2sc->drv, STI_L2STAT, LAYER_ACTIVE);
i4b_tx_ua(l2sc, l2sc->rxd_PF);
l2sc->vs = 0;
l2sc->va = 0;
l2sc->vr = 0;
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_establish_ind;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_T08 executing");
i4b_mdl_status_ind(l2sc->drv, 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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_T09 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_T10 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_T13 executing");
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_cnf;
}
/*---------------------------------------------------------------------------*
* FSM state ST_AW_EST event dl establish request
*---------------------------------------------------------------------------*/
static void
F_AE01(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AE01 executing");
i4b_Dcleanifq(&l2sc->i_queue);
l2sc->l3initiated = 1;
}
/*---------------------------------------------------------------------------*
* FSM state ST_AW_EST event persistent deactivation
*---------------------------------------------------------------------------*/
static void
F_AE05(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AE05 executing");
i4b_Dcleanifq(&l2sc->i_queue);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
i4b_T200_stop(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_AW_EST event mdl remove request
*---------------------------------------------------------------------------*/
static void
F_AE06(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AE06 executing");
i4b_Dcleanifq(&l2sc->i_queue);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AE07 executing");
i4b_mdl_status_ind(l2sc->drv, 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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AE08 executing");
i4b_tx_dm(l2sc, l2sc->rxd_PF);
}
/*---------------------------------------------------------------------------*
* FSM state ST_AW_EST event rx'd UA
*---------------------------------------------------------------------------*/
static void
F_AE09(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AE09 executing");
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->drv;
l2sc->postfsmfunc = i4b_dl_establish_cnf;
}
else
{
if(l2sc->vs != l2sc->va)
{
i4b_Dcleanifq(&l2sc->i_queue);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_establish_ind;
}
}
i4b_mdl_status_ind(l2sc->drv, 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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AE10 executing");
if(l2sc->rxd_PF == 0)
{
l2sc->Q921_state = ST_AW_EST;
}
else
{
i4b_Dcleanifq(&l2sc->i_queue);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AE11 executing");
if(l2sc->RC >= N200)
{
i4b_Dcleanifq(&l2sc->i_queue);
i4b_mdl_error_ind(l2sc, "F_AE11", MDL_ERR_G);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AE12 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AR05 executing");
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_cnf;
i4b_T200_stop(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_AW_REL event mdl remove request
*---------------------------------------------------------------------------*/
static void
F_AR06(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AR06 executing");
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_cnf;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AR07 executing");
i4b_tx_dm(l2sc, l2sc->rxd_PF);
}
/*---------------------------------------------------------------------------*
* FSM state ST_AW_REL event rx'd DISC
*---------------------------------------------------------------------------*/
static void
F_AR08(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AR08 executing");
i4b_mdl_status_ind(l2sc->drv, 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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AR09 executing");
if(l2sc->rxd_PF)
{
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_cnf;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AR10 executing");
if(l2sc->rxd_PF)
{
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_cnf;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_AR11 executing");
if(l2sc->RC >= N200)
{
i4b_mdl_error_ind(l2sc, "F_AR11", MDL_ERR_H);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_cnf;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF01 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF05 executing");
i4b_Dcleanifq(&l2sc->i_queue);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
i4b_T200_stop(l2sc);
i4b_T203_stop(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_MULTIFR event mdl remove request
*---------------------------------------------------------------------------*/
static void
F_MF06(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF06 executing");
i4b_Dcleanifq(&l2sc->i_queue);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF07 executing");
i4b_clear_exception_conditions(l2sc);
i4b_mdl_status_ind(l2sc->drv, 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->drv;
l2sc->postfsmfunc = i4b_dl_establish_ind;
}
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF08 executing");
i4b_Dcleanifq(&l2sc->i_queue);
i4b_mdl_status_ind(l2sc->drv, STI_L2STAT, LAYER_IDLE);
i4b_tx_ua(l2sc, l2sc->rxd_PF);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
i4b_T200_stop(l2sc);
i4b_T203_stop(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_MULTIFR event rx'd UA
*---------------------------------------------------------------------------*/
static void
F_MF09(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF09 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF10 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF11 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF12 executing");
i4b_i_frame_queued_up(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_MULTIFR event dl release request
*---------------------------------------------------------------------------*/
static void
F_MF13(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF13 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF14 executing");
i4b_transmit_enquire(l2sc);
l2sc->RC = 0;
}
/*---------------------------------------------------------------------------*
* FSM state ST_MULTIFR event set own rx busy
*---------------------------------------------------------------------------*/
static void
F_MF15(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF15 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF16 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF17 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF18 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF19 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_MF20 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR01 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR05 executing");
i4b_Dcleanifq(&l2sc->i_queue);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
i4b_T200_stop(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_TIMREC event mdl remove request
*---------------------------------------------------------------------------*/
static void
F_TR06(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR06 executing");
i4b_Dcleanifq(&l2sc->i_queue);
l2sc->postfsmarg = l2sc->drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR07 executing");
i4b_clear_exception_conditions(l2sc);
i4b_mdl_status_ind(l2sc->drv, 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->drv;
l2sc->postfsmfunc = i4b_dl_establish_ind;
}
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR08 executing");
i4b_Dcleanifq(&l2sc->i_queue);
i4b_mdl_status_ind(drv, STI_L2STAT, LAYER_IDLE);
i4b_tx_ua(l2sc, l2sc->rxd_PF);
l2sc->postfsmarg = drv;
l2sc->postfsmfunc = i4b_dl_release_ind;
i4b_T200_stop(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_TIMREC event rx'd UA
*---------------------------------------------------------------------------*/
static void
F_TR09(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR09 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR10 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR11 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR12 executing");
i4b_i_frame_queued_up(l2sc);
}
/*---------------------------------------------------------------------------*
* FSM state ST_TIMREC event dl release request
*---------------------------------------------------------------------------*/
static void
F_TR13(l2_softc_t *l2sc, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR13 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR15 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR16 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR17 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR18 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR19 executing");
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, struct isdn_l3_driver *drv)
{
NDBGL2(L2_F_MSG, "FSM function F_TR20 executing");
i4b_mdl_error_ind(l2sc, "F_TR20", MDL_ERR_K);
i4b_establish_data_link(l2sc);
l2sc->l3initiated = 0;
}
#endif /* NI4BQ921 > 0 */
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