1/*	$NetBSD: bi.c,v 1.24 2008/03/11 05:34:01 matt 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 1.24 2008/03/11 05:34:01 matt 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
56static int bi_print(void *, const char *);
57
58static 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
77int
78bi_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
112void
113bi_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);
146	}
147}
148