FreeBSD/Linux Kernel Cross Reference
sys/dev/pci/iwic_fsm.c
1 /* $NetBSD: iwic_fsm.c,v 1.1 2002/09/24 22:05:19 pooka Exp $ */
2
3 /*
4 * Copyright (c) 1999, 2000 Dave Boyce. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *---------------------------------------------------------------------------
28 *
29 * i4b_iwic - isdn4bsd Winbond W6692 driver
30 * ----------------------------------------
31 *
32 * $FreeBSD$
33 *
34 * last edit-date: [Sun Jan 21 11:09:24 2001]
35 *
36 *---------------------------------------------------------------------------*/
37
38 #include <sys/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: iwic_fsm.c,v 1.1 2002/09/24 22:05:19 pooka Exp $");
40
41 #include <sys/param.h>
42 #include <sys/kernel.h>
43 #include <sys/systm.h>
44 #include <sys/mbuf.h>
45 #include <sys/callout.h>
46 #include <sys/socket.h>
47 #include <sys/device.h>
48 #include <net/if.h>
49
50 #include <machine/bus.h>
51
52 #include <dev/pci/pcireg.h>
53 #include <dev/pci/pcivar.h>
54 #include <dev/pci/pcidevs.h>
55
56 #include <dev/pci/iwicreg.h>
57 #include <dev/pci/iwicvar.h>
58
59 #if DO_I4B_DEBUG
60 static char *state_names[] = {
61 "F3N",
62 "F3",
63 "F4",
64 "F5",
65 "F6",
66 "F7",
67 "F8",
68 "ILLEGAL",
69 };
70
71 static char *event_names[] = {
72 "PHAR",
73 "CE",
74 "T3",
75 "INFO0",
76 "RSY",
77 "INFO2",
78 "INFO48",
79 "INFO410",
80 "DR",
81 "PU",
82 "DIS",
83 "EI",
84 "ILLEGAL"
85 };
86 #endif
87
88 /*---------------------------------------------------------------------------*
89 *
90 *---------------------------------------------------------------------------*/
91 static void
92 F_NULL(struct iwic_softc *sc)
93 {
94 NDBGL1(L1_F_MSG, "FSM function F_NULL executing");
95 }
96
97 /*---------------------------------------------------------------------------*
98 *
99 *---------------------------------------------------------------------------*/
100 static void
101 F_AR(struct iwic_softc *sc)
102 {
103 NDBGL1(L1_F_MSG, "FSM function F_AR executing");
104 IWIC_WRITE(sc, CIX, CIX_ECK);
105 }
106
107 /*---------------------------------------------------------------------------*
108 *
109 *---------------------------------------------------------------------------*/
110 static void
111 F_AR3(struct iwic_softc *sc)
112 {
113 NDBGL1(L1_F_MSG, "FSM function F_AR3 executing");
114 IWIC_WRITE(sc, CIX, CIX_AR8);
115 }
116
117 /*---------------------------------------------------------------------------*
118 *
119 *---------------------------------------------------------------------------*/
120 static void
121 F_I0I(struct iwic_softc *sc)
122 {
123 NDBGL1(L1_F_MSG, "FSM function F_IOI executing");
124 }
125
126 /*---------------------------------------------------------------------------*
127 *
128 *---------------------------------------------------------------------------*/
129 static void
130 F_I0A(struct iwic_softc *sc)
131 {
132 NDBGL1(L1_F_MSG, "FSM function F_IOA executing");
133 iwic_dchan_disable(sc);
134 isdn_layer2_activate_ind(&sc->sc_l2, sc->sc_l3token, 0);
135 }
136
137 /*---------------------------------------------------------------------------*
138 *
139 *---------------------------------------------------------------------------*/
140 static void
141 F_AI8(struct iwic_softc *sc)
142 {
143 NDBGL1(L1_F_MSG, "FSM function F_AI8 executing");
144 iwic_dchan_transmit(sc);
145 isdn_layer2_activate_ind(&sc->sc_l2, sc->sc_l3token, 1);
146 }
147
148 /*---------------------------------------------------------------------------*
149 *
150 *---------------------------------------------------------------------------*/
151 static void
152 F_AI10(struct iwic_softc *sc)
153 {
154 NDBGL1(L1_F_MSG, "FSM function F_AI10 executing");
155 iwic_dchan_transmit(sc);
156 isdn_layer2_activate_ind(&sc->sc_l2, sc->sc_l3token, 1);
157 }
158
159 /*---------------------------------------------------------------------------*
160 *
161 *---------------------------------------------------------------------------*/
162 struct iwic_state_tab {
163 void (*func) (struct iwic_softc *sc); /* function to execute */
164 int newstate; /* next state */
165 } iwic_state_tab[N_EVENTS][N_STATES] = {
166
167 /* STATE: F3N F3 F4 F5 F6 F7 F8 ILLEGAL STATE */
168 /* ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ */
169 /* 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 }},
170 /* 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 }},
171 /* 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 }},
172 /* 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 }},
173 /* 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 }},
174 /* 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 }},
175 /* 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 }},
176 /* 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 }},
177 /* 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 }},
178 /* 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 }},
179 /* 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 }},
180 /* 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 }},
181 /* 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 }},
182 };
183
184 /*---------------------------------------------------------------------------*
185 *
186 *---------------------------------------------------------------------------*/
187 void
188 iwic_next_state(struct iwic_softc *sc, int event)
189 {
190 int currstate, newstate;
191
192 NDBGL1(L1_F_MSG, "event %s", event_names[event]);
193
194 if (event >= N_EVENTS)
195 {
196 printf("iwic_next_state: event >= N_EVENTS\n");
197 return;
198 }
199
200 currstate = sc->sc_I430state;
201
202 newstate = iwic_state_tab[event][currstate].newstate;
203 if (newstate >= N_STATES)
204 {
205 printf("iwic_next_state: newstate >= N_STATES\n");
206 return;
207 }
208
209 NDBGL1(L1_F_MSG, "state %s -> %s",
210 state_names[currstate], state_names[newstate]);
211
212 sc->sc_I430state = newstate;
213
214 (*iwic_state_tab[event][currstate].func) (sc);
215 }
216
217 #if DO_I4B_DEBUG
218 /*---------------------------------------------------------------------------*
219 * return pointer to current state description
220 *---------------------------------------------------------------------------*/
221 char *
222 iwic_printstate(struct iwic_softc *sc)
223 {
224 return((char *)state_names[sc->sc_I430state]);
225 }
226 #endif
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