1 /* $NetBSD: bi.c,v 1.27 2021/08/07 16:19:09 thorpej Exp $ */
2 /*
3 * Copyright (c) 1996 Ludd, University of Lule}, Sweden.
4 * 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 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed at Ludd, University of
17 * Lule}, Sweden and its contributors.
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33
34
35 /*
36 * VAXBI specific routines.
37 */
38 /*
39 * TODO
40 * handle BIbus errors more gracefully.
41 */
42
43 #include <sys/cdefs.h>
44 __KERNEL_RCSID(0, "$NetBSD: bi.c,v 1.27 2021/08/07 16:19:09 thorpej Exp $");
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48
49 #include <sys/bus.h>
50 #include <sys/cpu.h>
51 #include <sys/device.h>
52
53 #include <dev/bi/bireg.h>
54 #include <dev/bi/bivar.h>
55
56 static int bi_print(void *, const char *);
57
58 static const struct bi_list bi_list[] = {
59 {BIDT_MS820, DT_HAVDRV, "ms820"},
60 {BIDT_DRB32, DT_UNSUPP, "drb32"},
61 {BIDT_DWBUA, DT_HAVDRV|DT_ADAPT, "dwbua"},
62 {BIDT_KLESI, DT_HAVDRV|DT_ADAPT, "klesi"},
63 {BIDT_KA820, DT_HAVDRV, "ka820"},
64 {BIDT_DB88, DT_HAVDRV|DT_QUIET, "db88"},
65 {BIDT_CIBCA, DT_UNSUPP, "cibca"},
66 {BIDT_DMB32, DT_UNSUPP, "dmb32"},
67 {BIDT_CIBCI, DT_UNSUPP, "cibci"},
68 {BIDT_KA800, DT_UNSUPP, "ka800"},
69 {BIDT_KDB50, DT_HAVDRV|DT_VEC, "kdb50"},
70 {BIDT_DWMBA, DT_HAVDRV|DT_QUIET, "dwmba"},
71 {BIDT_KFBTA, DT_UNSUPP, "kfbta"},
72 {BIDT_DEBNK, DT_HAVDRV|DT_VEC, "debnk"},
73 {BIDT_DEBNA, DT_HAVDRV|DT_VEC, "debna"},
74 {0,0,0}
75 };
76
77 int
bi_print(void * aux,const char * name)78 bi_print(void *aux, const char *name)
79 {
80 struct bi_attach_args *ba = aux;
81 const struct bi_list *bl;
82 u_int16_t nr;
83
84 nr = bus_space_read_2(ba->ba_iot, ba->ba_ioh, 0);
85 for (bl = &bi_list[0]; bl->bl_nr; bl++)
86 if (bl->bl_nr == nr)
87 break;
88
89 if (name) {
90 if (bl->bl_nr == 0)
91 aprint_normal("unknown device 0x%x", nr);
92 else
93 aprint_normal(bl->bl_name);
94 aprint_normal(" at %s", name);
95 }
96 aprint_normal(" node %d", ba->ba_nodenr);
97 if (bl->bl_havedriver & DT_VEC)
98 aprint_normal(" vec %o", ba->ba_ivec & 511);
99 #ifdef DEBUG
100 if (bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_SADR) &&
101 bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_EADR))
102 aprint_debug(" [sadr %x eadr %x]",
103 bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_SADR),
104 bus_space_read_4(ba->ba_iot, ba->ba_ioh, BIREG_EADR));
105 #endif
106 if (bl->bl_havedriver & DT_QUIET)
107 aprint_normal("\n");
108 return bl->bl_havedriver & DT_QUIET ? QUIET :
109 bl->bl_havedriver & DT_HAVDRV ? UNCONF : UNSUPP;
110 }
111
112 void
bi_attach(struct bi_softc * sc)113 bi_attach(struct bi_softc *sc)
114 {
115 struct bi_attach_args ba;
116 int nodenr;
117
118 aprint_normal("\n");
119
120 ba.ba_iot = sc->sc_iot;
121 ba.ba_busnr = sc->sc_busnr;
122 ba.ba_dmat = sc->sc_dmat;
123 ba.ba_intcpu = sc->sc_intcpu;
124 ba.ba_icookie = sc;
125 /*
126 * Interrupt numbers. Assign them as described in
127 * VAX 8800 system maintenance manual; this means like nexus
128 * adapters have them assigned.
129 * XXX - must address Unibus adapters.
130 */
131 for (nodenr = 0; nodenr < NNODEBI; nodenr++) {
132 if (bus_space_map(sc->sc_iot, sc->sc_addr + BI_NODE(nodenr),
133 BI_NODESIZE, 0, &ba.ba_ioh)) {
134 aprint_error_dev(sc->sc_dev,
135 "bus_space_map failed, node %d\n", nodenr);
136 return;
137 }
138 if (badaddr((void *)ba.ba_ioh, 4) ||
139 (bus_space_read_2(ba.ba_iot, ba.ba_ioh, 0) == 0)) {
140 bus_space_unmap(ba.ba_iot, ba.ba_ioh, BI_NODESIZE);
141 continue;
142 }
143 ba.ba_nodenr = nodenr;
144 ba.ba_ivec = sc->sc_lastiv + 64 + 4 * nodenr; /* all on spl5 */
145 config_found(sc->sc_dev, &ba, bi_print, CFARGS_NONE);
146 }
147 }
148