diff options
Diffstat (limited to 'sys/i4b/layer2/i4b_l2fsm.c')
| -rw-r--r-- | sys/i4b/layer2/i4b_l2fsm.c | 1578 |
1 files changed, 0 insertions, 1578 deletions
diff --git a/sys/i4b/layer2/i4b_l2fsm.c b/sys/i4b/layer2/i4b_l2fsm.c deleted file mode 100644 index 8e2721b..0000000 --- a/sys/i4b/layer2/i4b_l2fsm.c +++ /dev/null @@ -1,1578 +0,0 @@ -/*- - * Copyright (c) 1997, 2002 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 - * ------------------------- - * last edit-date: [Sat Mar 9 16:14:07 2002] - * - *---------------------------------------------------------------------------*/ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/socket.h> -#include <net/if.h> - -#include <i4b/include/i4b_debug.h> -#include <i4b/include/i4b_ioctl.h> - -#include <i4b/include/i4b_global.h> -#include <i4b/include/i4b_l2l3.h> -#include <i4b/include/i4b_mbuf.h> - -#include <i4b/layer2/i4b_l2.h> -#include <i4b/layer2/i4b_l2fsm.h> - -l2_softc_t l2_softc[MAXL1UNITS]; - -#if DO_I4B_DEBUG -static 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 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(l2_softc_t *); -static void F_TU03(l2_softc_t *); - -static void F_TA03(l2_softc_t *); -static void F_TA04(l2_softc_t *); -static void F_TA05(l2_softc_t *); - -static void F_TE03(l2_softc_t *); -static void F_TE04(l2_softc_t *); -static void F_TE05(l2_softc_t *); - -static void F_T01(l2_softc_t *); -static void F_T05(l2_softc_t *); -static void F_T06(l2_softc_t *); -static void F_T07(l2_softc_t *); -static void F_T08(l2_softc_t *); -static void F_T09(l2_softc_t *); -static void F_T10(l2_softc_t *); -static void F_T13(l2_softc_t *); - -static void F_AE01(l2_softc_t *); -static void F_AE05(l2_softc_t *); -static void F_AE06(l2_softc_t *); -static void F_AE07(l2_softc_t *); -static void F_AE08(l2_softc_t *); -static void F_AE09(l2_softc_t *); -static void F_AE10(l2_softc_t *); -static void F_AE11(l2_softc_t *); -static void F_AE12(l2_softc_t *); - -static void F_AR05(l2_softc_t *); -static void F_AR06(l2_softc_t *); -static void F_AR07(l2_softc_t *); -static void F_AR08(l2_softc_t *); -static void F_AR09(l2_softc_t *); -static void F_AR10(l2_softc_t *); -static void F_AR11(l2_softc_t *); - -static void F_MF01(l2_softc_t *); -static void F_MF05(l2_softc_t *); -static void F_MF06(l2_softc_t *); -static void F_MF07(l2_softc_t *); -static void F_MF08(l2_softc_t *); -static void F_MF09(l2_softc_t *); -static void F_MF10(l2_softc_t *); -static void F_MF11(l2_softc_t *); -static void F_MF12(l2_softc_t *); -static void F_MF13(l2_softc_t *); -static void F_MF14(l2_softc_t *); -static void F_MF15(l2_softc_t *); -static void F_MF16(l2_softc_t *); -static void F_MF17(l2_softc_t *); -static void F_MF18(l2_softc_t *); -static void F_MF19(l2_softc_t *); -static void F_MF20(l2_softc_t *); - -static void F_TR01(l2_softc_t *); -static void F_TR05(l2_softc_t *); -static void F_TR06(l2_softc_t *); -static void F_TR07(l2_softc_t *); -static void F_TR08(l2_softc_t *); -static void F_TR09(l2_softc_t *); -static void F_TR10(l2_softc_t *); -static void F_TR11(l2_softc_t *); -static void F_TR12(l2_softc_t *); -static void F_TR13(l2_softc_t *); -static void F_TR15(l2_softc_t *); -static void F_TR16(l2_softc_t *); -static void F_TR17(l2_softc_t *); -static void F_TR18(l2_softc_t *); -static void F_TR19(l2_softc_t *); -static void F_TR20(l2_softc_t *); -static void F_ILL(l2_softc_t *); -static void F_NCNA(l2_softc_t *); - -/*---------------------------------------------------------------------------* - * FSM illegal state default action - *---------------------------------------------------------------------------*/ -static void -F_ILL(l2_softc_t *l2sc) -{ - NDBGL2(L2_F_ERR, "FSM function F_ILL executing"); -} - -/*---------------------------------------------------------------------------* - * FSM No change, No action - *---------------------------------------------------------------------------*/ -static void -F_NCNA(l2_softc_t *l2sc) -{ - NDBGL2(L2_F_MSG, "FSM function F_NCNA executing"); -} - -/*---------------------------------------------------------------------------* - * layer 2 state transition table - *---------------------------------------------------------------------------*/ -struct l2state_tab { - void (*func)(l2_softc_t *); /* 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, int event) -{ - int currstate, newstate; - int (*savpostfsmfunc)(int) = NULL; - - /* check event number */ - if(event >= N_EVENTS) - panic("i4b_l2fsm.c: event >= N_EVENTS\n"); - - /* get current state and check it */ - if((currstate = l2sc->Q921_state) >= N_STATES) /* failsafe */ - panic("i4b_l2fsm.c: currstate >= N_STATES\n"); - - /* get new state and check it */ - if((newstate = l2state_tab[event][currstate].newstate) >= N_STATES) - panic("i4b_l2fsm.c: newstate >= N_STATES\n"); - - - 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); - - 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 - *---------------------------------------------------------------------------*/ -char *i4b_print_l2state(l2_softc_t *l2sc) -{ - return((char *) l2state_text[l2sc->Q921_state]); -} -#endif - -/*---------------------------------------------------------------------------* - * FSM state ST_TEI_UNAS event dl establish request - *---------------------------------------------------------------------------*/ -static void -F_TU01(l2_softc_t *l2sc) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_TE04 executing"); - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; -} - -/*---------------------------------------------------------------------------* - * FSM state ST_EST_AW_TEI event persistent deactivation - *---------------------------------------------------------------------------*/ -static void -F_TE05(l2_softc_t *l2sc) -{ - NDBGL2(L2_F_MSG, "FSM function F_TE05 executing"); - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; -} - -/*---------------------------------------------------------------------------* - * FSM state ST_TEI_ASGD event dl establish request - *---------------------------------------------------------------------------*/ -static void -F_T01(l2_softc_t *l2sc) -{ - 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) -{ - 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) -{ - 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) -{ - 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); - - MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_ACTIVE); - - i4b_tx_ua(l2sc, l2sc->rxd_PF); - - l2sc->vs = 0; - l2sc->va = 0; - l2sc->vr = 0; - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Est_Ind_A; - - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_T08 executing"); - MDL_Status_Ind(l2sc->unit, 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) -{ - 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) -{ - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_T13 executing"); - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Cnf_A; -} - -/*---------------------------------------------------------------------------* - * FSM state ST_AW_EST event dl establish request - *---------------------------------------------------------------------------*/ -static void -F_AE01(l2_softc_t *l2sc) -{ - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_AE05 executing"); - - i4b_Dcleanifq(&l2sc->i_queue); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - i4b_T200_stop(l2sc); -} - -/*---------------------------------------------------------------------------* - * FSM state ST_AW_EST event mdl remove request - *---------------------------------------------------------------------------*/ -static void -F_AE06(l2_softc_t *l2sc) -{ - NDBGL2(L2_F_MSG, "FSM function F_AE06 executing"); - - i4b_Dcleanifq(&l2sc->i_queue); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_AE07 executing"); - MDL_Status_Ind(l2sc->unit, 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) -{ - 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) -{ - 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->unit; - l2sc->postfsmfunc = DL_Est_Cnf_A; - } - else - { - if(l2sc->vs != l2sc->va) - { - i4b_Dcleanifq(&l2sc->i_queue); - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Est_Ind_A; - } - } - - MDL_Status_Ind(l2sc->unit, 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) -{ - 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->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - 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) -{ - 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->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - 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) -{ - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_AR05 executing"); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Cnf_A; - - i4b_T200_stop(l2sc); -} - -/*---------------------------------------------------------------------------* - * FSM state ST_AW_REL event mdl remove request - *---------------------------------------------------------------------------*/ -static void -F_AR06(l2_softc_t *l2sc) -{ - NDBGL2(L2_F_MSG, "FSM function F_AR06 executing"); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Cnf_A; - - 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) -{ - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_AR08 executing"); - MDL_Status_Ind(l2sc->unit, 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_AR09 executing"); - - if(l2sc->rxd_PF) - { - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Cnf_A; - - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_AR10 executing"); - - if(l2sc->rxd_PF) - { - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Cnf_A; - - 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) -{ - 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->unit; - l2sc->postfsmfunc = DL_Rel_Cnf_A; - - 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) -{ - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_MF05 executing"); - - i4b_Dcleanifq(&l2sc->i_queue); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - i4b_T200_stop(l2sc); - i4b_T203_stop(l2sc); -} - -/*---------------------------------------------------------------------------* - * FSM state ST_MULTIFR event mdl remove request - *---------------------------------------------------------------------------*/ -static void -F_MF06(l2_softc_t *l2sc) -{ - NDBGL2(L2_F_MSG, "FSM function F_MF06 executing"); - - i4b_Dcleanifq(&l2sc->i_queue); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_MF07 executing"); - - i4b_clear_exception_conditions(l2sc); - - MDL_Status_Ind(l2sc->unit, 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->unit; - l2sc->postfsmfunc = DL_Est_Ind_A; - } - - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_MF08 executing"); - - i4b_Dcleanifq(&l2sc->i_queue); - MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_IDLE); - i4b_tx_ua(l2sc, l2sc->rxd_PF); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - i4b_T200_stop(l2sc); - i4b_T203_stop(l2sc); -} - -/*---------------------------------------------------------------------------* - * FSM state ST_MULTIFR event rx'd UA - *---------------------------------------------------------------------------*/ -static void -F_MF09(l2_softc_t *l2sc) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_TR05 executing"); - - i4b_Dcleanifq(&l2sc->i_queue); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - i4b_T200_stop(l2sc); -} - -/*---------------------------------------------------------------------------* - * FSM state ST_TIMREC event mdl remove request - *---------------------------------------------------------------------------*/ -static void -F_TR06(l2_softc_t *l2sc) -{ - NDBGL2(L2_F_MSG, "FSM function F_TR06 executing"); - - i4b_Dcleanifq(&l2sc->i_queue); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_TR07 executing"); - - i4b_clear_exception_conditions(l2sc); - - MDL_Status_Ind(l2sc->unit, 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->unit; - l2sc->postfsmfunc = DL_Est_Ind_A; - } - - 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) -{ - NDBGL2(L2_F_MSG, "FSM function F_TR08 executing"); - - i4b_Dcleanifq(&l2sc->i_queue); - MDL_Status_Ind(l2sc->unit, STI_L2STAT, LAYER_IDLE); - i4b_tx_ua(l2sc, l2sc->rxd_PF); - - l2sc->postfsmarg = l2sc->unit; - l2sc->postfsmfunc = DL_Rel_Ind_A; - - i4b_T200_stop(l2sc); -} - -/*---------------------------------------------------------------------------* - * FSM state ST_TIMREC event rx'd UA - *---------------------------------------------------------------------------*/ -static void -F_TR09(l2_softc_t *l2sc) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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; -} |
