1 /* $NetBSD: g2bus.c,v 1.16 2021/08/07 16:18:48 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 1.16 2021/08/07 16:18:48 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/malloc.h>
44 #include <sys/device.h>
45 #include <sys/proc.h>
46
47 #include <dreamcast/dev/g2/g2busvar.h>
48
49 int g2busmatch(device_t, cfdata_t, void *);
50 void g2busattach(device_t, device_t, void *);
51 int g2busprint(void *, const char *);
52
53 CFATTACH_DECL_NEW(g2bus, sizeof(struct g2bus_softc),
54 g2busmatch, g2busattach, NULL, NULL);
55
56 int g2bussearch(device_t, cfdata_t, const int *, void *);
57
58 int
g2busmatch(device_t parent,cfdata_t cf,void * aux)59 g2busmatch(device_t parent, cfdata_t cf, void *aux)
60 {
61
62 return 1;
63 }
64
65 void
g2busattach(device_t parent,device_t self,void * aux)66 g2busattach(device_t parent, device_t self, void *aux)
67 {
68 struct g2bus_softc *sc = device_private(self);
69 struct g2bus_attach_args ga;
70
71 sc->sc_dev = self;
72 printf("\n");
73
74 TAILQ_INIT(&sc->sc_subdevs);
75
76 g2bus_bus_mem_init(sc);
77
78 ga.ga_memt = &sc->sc_memt;
79
80 config_search(self, &ga,
81 CFARGS(.search = g2bussearch));
82 }
83
84 int
g2busprint(void * aux,const char * pnp)85 g2busprint(void *aux, const char *pnp)
86 {
87
88 return UNCONF;
89 }
90
91 int
g2bussearch(device_t parent,cfdata_t cf,const int * ldesc,void * aux)92 g2bussearch(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
93 {
94
95 if (config_probe(parent, cf, aux))
96 config_attach(parent, cf, aux, g2busprint, CFARGS_NONE);
97
98 return 0;
99 }
100