diff options
Diffstat (limited to 'sys/i4b/layer1/iwic/i4b_iwic_fsm.c')
-rw-r--r-- | sys/i4b/layer1/iwic/i4b_iwic_fsm.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/sys/i4b/layer1/iwic/i4b_iwic_fsm.c b/sys/i4b/layer1/iwic/i4b_iwic_fsm.c new file mode 100644 index 0000000..2737fc6 --- /dev/null +++ b/sys/i4b/layer1/iwic/i4b_iwic_fsm.c @@ -0,0 +1,235 @@ +/* + * Copyright (c) 1999, 2000 Dave Boyce. 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_iwic - isdn4bsd Winbond W6692 driver + * ---------------------------------------- + * + * $Id: i4b_iwic_fsm.c,v 1.4 2000/05/29 15:41:42 hm Exp $ + * + * $FreeBSD$ + * + * last edit-date: [Thu Apr 27 14:56:54 2000] + * + *---------------------------------------------------------------------------*/ + +#include "iwic.h" +#include "opt_i4b.h" +#include "pci.h" + +#if (NIWIC > 0) && (NPCI > 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> + +#include <machine/clock.h> + +#include <machine/i4b_debug.h> +#include <machine/i4b_ioctl.h> +#include <machine/i4b_trace.h> + +#include <i4b/layer1/i4b_l1.h> + +#include <i4b/include/i4b_global.h> +#include <i4b/include/i4b_l3l4.h> +#include <i4b/include/i4b_mbuf.h> + +#include <i4b/layer1/iwic/i4b_iwic.h> +#include <i4b/layer1/iwic/i4b_w6692.h> + +#if DO_I4B_DEBUG +static char *state_names[] = { + "F3N", + "F3", + "F4", + "F5", + "F6", + "F7", + "F8", + "ILLEGAL", +}; + +static char *event_names[] = { + "PHAR", + "CE", + "T3", + "INFO0", + "RSY", + "INFO2", + "INFO48", + "INFO410", + "DR", + "PU", + "DIS", + "EI", + "ILLEGAL" +}; +#endif + +/*---------------------------------------------------------------------------* + * + *---------------------------------------------------------------------------*/ +static void +F_NULL(struct iwic_softc *sc) +{ + NDBGL1(L1_F_MSG, "FSM function F_NULL executing"); +} + +/*---------------------------------------------------------------------------* + * + *---------------------------------------------------------------------------*/ +static void +F_AR(struct iwic_softc *sc) +{ + NDBGL1(L1_F_MSG, "FSM function F_AR executing"); + IWIC_WRITE(sc, CIX, CIX_ECK); +} + +/*---------------------------------------------------------------------------* + * + *---------------------------------------------------------------------------*/ +static void +F_AR3(struct iwic_softc *sc) +{ + NDBGL1(L1_F_MSG, "FSM function F_AR3 executing"); + IWIC_WRITE(sc, CIX, CIX_AR8); +} + +/*---------------------------------------------------------------------------* + * + *---------------------------------------------------------------------------*/ +static void +F_I0I(struct iwic_softc *sc) +{ + NDBGL1(L1_F_MSG, "FSM function F_IOI executing"); +} + +/*---------------------------------------------------------------------------* + * + *---------------------------------------------------------------------------*/ +static void +F_I0A(struct iwic_softc *sc) +{ + NDBGL1(L1_F_MSG, "FSM function F_IOA executing"); + iwic_dchan_disable(sc); + i4b_l1_ph_deactivate_ind(L0IWICUNIT(sc->sc_unit)); +} + +/*---------------------------------------------------------------------------* + * + *---------------------------------------------------------------------------*/ +static void +F_AI8(struct iwic_softc *sc) +{ + NDBGL1(L1_F_MSG, "FSM function F_AI8 executing"); + iwic_dchan_transmit(sc); + i4b_l1_ph_activate_ind(L0IWICUNIT(sc->sc_unit)); +} + +/*---------------------------------------------------------------------------* + * + *---------------------------------------------------------------------------*/ +static void +F_AI10(struct iwic_softc *sc) +{ + NDBGL1(L1_F_MSG, "FSM function F_AI10 executing"); + iwic_dchan_transmit(sc); + i4b_l1_ph_activate_ind(L0IWICUNIT(sc->sc_unit)); +} + +/*---------------------------------------------------------------------------* + * + *---------------------------------------------------------------------------*/ +struct iwic_state_tab { + void (*func) (struct iwic_softc *sc); /* function to execute */ + int newstate; /* next state */ +} iwic_state_tab[N_EVENTS][N_STATES] = { + +/* STATE: F3N F3 F4 F5 F6 F7 F8 ILLEGAL STATE */ +/* ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ */ +/* EV_PHAR */ {{F_AR, ST_F3 }, {F_AR3, ST_F4 }, {F_NULL, ST_F4 }, {F_NULL, ST_F5 }, {F_NULL, ST_F6 }, {F_NULL, ST_F7 }, {F_NULL, ST_F8 }, {F_NULL, ST_ILL }}, +/* EV_CE */ {{F_NULL, ST_F3 }, {F_AR3, ST_F4 }, {F_NULL, ST_F4 }, {F_NULL, ST_F4 }, {F_NULL, ST_F4 }, {F_NULL, ST_F4 }, {F_NULL, ST_F4 }, {F_NULL, ST_ILL }}, +/* EV_T3 */ {{F_NULL, ST_F3N }, {F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F7 }, {F_NULL, ST_F8 }, {F_NULL, ST_ILL }}, +/* EV_INFO0 */ {{F_I0I, ST_F3 }, {F_I0I, ST_F3 }, {F_I0I, ST_F3 }, {F_I0I, ST_F3 }, {F_I0A, ST_F3 }, {F_I0A, ST_F3 }, {F_I0A, ST_F3 }, {F_NULL, ST_ILL }}, +/* EV_RSY */ {{F_NULL, ST_F3 }, {F_NULL, ST_F5 }, {F_NULL, ST_F5 }, {F_NULL, ST_F5 }, {F_NULL, ST_F8 }, {F_NULL, ST_F8 }, {F_NULL, ST_F8 }, {F_NULL, ST_ILL }}, +/* EV_INFO2 */ {{F_NULL, ST_F6 }, {F_NULL, ST_F6 }, {F_NULL, ST_F6 }, {F_NULL, ST_F6 }, {F_NULL, ST_F6 }, {F_NULL, ST_F6 }, {F_NULL, ST_F6 }, {F_NULL, ST_ILL }}, +/* EV_INFO48 */ {{F_AI8 , ST_F7 }, {F_AI8, ST_F7 }, {F_AI8, ST_F7 }, {F_AI8, ST_F7 }, {F_AI8, ST_F7 }, {F_AI8, ST_F7 }, {F_AI8, ST_F7 }, {F_NULL, ST_ILL }}, +/* EV_INFO410*/ {{F_AI10, ST_F7 }, {F_AI10, ST_F7 }, {F_AI10, ST_F7 }, {F_AI10, ST_F7 }, {F_AI10, ST_F7 }, {F_AI10, ST_F7 }, {F_AI10, ST_F7 }, {F_NULL, ST_ILL }}, +/* EV_DR */ {{F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F4 }, {F_NULL, ST_F5 }, {F_NULL, ST_F6 }, {F_NULL, ST_F7 }, {F_NULL, ST_F8 }, {F_NULL, ST_ILL }}, +/* EV_PU */ {{F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F4 }, {F_NULL, ST_F5 }, {F_NULL, ST_F6 }, {F_NULL, ST_F7 }, {F_NULL, ST_F8 }, {F_NULL, ST_ILL }}, +/* EV_DIS */ {{F_NULL, ST_F3N }, {F_NULL, ST_F3N }, {F_NULL, ST_F3N }, {F_NULL, ST_F3N }, {F_NULL, ST_F3N }, {F_I0A, ST_F3N }, {F_I0A, ST_F3N }, {F_NULL, ST_ILL }}, +/* EV_EI */ {{F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_F3 }, {F_NULL, ST_ILL }}, +/* EV_ILL */ {{F_NULL, ST_ILL }, {F_NULL, ST_ILL }, {F_NULL, ST_ILL }, {F_NULL, ST_ILL }, {F_NULL, ST_ILL }, {F_NULL, ST_ILL }, {F_NULL, ST_ILL }, {F_NULL, ST_ILL }}, +}; + +/*---------------------------------------------------------------------------* + * + *---------------------------------------------------------------------------*/ +void +iwic_next_state(struct iwic_softc *sc, int event) +{ + int currstate, newstate; + + NDBGL1(L1_F_MSG, "event %s", event_names[event]); + + if (event >= N_EVENTS) + { + printf("iwic_next_state: event >= N_EVENTS\n"); + return; + } + + currstate = sc->sc_I430state; + + newstate = iwic_state_tab[event][currstate].newstate; + if (newstate >= N_STATES) + { + printf("iwic_next_state: newstate >= N_STATES\n"); + return; + } + + NDBGL1(L1_F_MSG, "state %s -> %s", + state_names[currstate], state_names[newstate]); + + sc->sc_I430state = newstate; + + (*iwic_state_tab[event][currstate].func) (sc); +} + +#if DO_I4B_DEBUG +/*---------------------------------------------------------------------------* + * return pointer to current state description + *---------------------------------------------------------------------------*/ +char * +iwic_printstate(struct iwic_softc *sc) +{ + return((char *)state_names[sc->sc_I430state]); +} +#endif + +#endif |