1 /* $NetBSD: g2bus.c,v 1.17 2023/12/20 06:36:03 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2001 Marcus Comstedt
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Marcus Comstedt.
18 * 4. Neither the name of The NetBSD Foundation nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 */
34
35
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: g2bus.c,v 1.17 2023/12/20 06:36:03 thorpej Exp $");
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/conf.h>
43 #include <sys/device.h>
44 #include <sys/proc.h>
45
46 #include <dreamcast/dev/g2/g2busvar.h>
47
48 int g2busmatch(device_t, cfdata_t, void *);
49 void g2busattach(device_t, device_t, void *);
50 int g2busprint(void *, const char *);
51
52 CFATTACH_DECL_NEW(g2bus, sizeof(struct g2bus_softc),
53 g2busmatch, g2busattach, NULL, NULL);
54
55 int g2bussearch(device_t, cfdata_t, const int *, void *);
56
57 int
g2busmatch(device_t parent,cfdata_t cf,void * aux)58 g2busmatch(device_t parent, cfdata_t cf, void *aux)
59 {
60
61 return 1;
62 }
63
64 void
g2busattach(device_t parent,device_t self,void * aux)65 g2busattach(device_t parent, device_t self, void *aux)
66 {
67 struct g2bus_softc *sc = device_private(self);
68 struct g2bus_attach_args ga;
69
70 sc->sc_dev = self;
71 printf("\n");
72
73 TAILQ_INIT(&sc->sc_subdevs);
74
75 g2bus_bus_mem_init(sc);
76
77 ga.ga_memt = &sc->sc_memt;
78
79 config_search(self, &ga,
80 CFARGS(.search = g2bussearch));
81 }
82
83 int
g2busprint(void * aux,const char * pnp)84 g2busprint(void *aux, const char *pnp)
85 {
86
87 return UNCONF;
88 }
89
90 int
g2bussearch(device_t parent,cfdata_t cf,const int * ldesc,void * aux)91 g2bussearch(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
92 {
93
94 if (config_probe(parent, cf, aux))
95 config_attach(parent, cf, aux, g2busprint, CFARGS_NONE);
96
97 return 0;
98 }
99