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-rw-r--r--sys/i4b/layer1/iwic/i4b_iwic_fsm.c235
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
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