1 /* $NetBSD: rump_autoconf.c,v 1.3 2021/08/07 16:19:18 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2009 Antti Kantee. 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 ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * 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 OR
21 * 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 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: rump_autoconf.c,v 1.3 2021/08/07 16:19:18 thorpej Exp $");
30
31 #include <sys/param.h>
32 #include <sys/device.h>
33 #include <sys/kernel.h>
34
35 static int mainbus_match(device_t, cfdata_t, void *);
36 static void mainbus_attach(device_t, device_t, void *);
37 static int mainbus_search(device_t, cfdata_t, const int *, void *);
38
39 struct mainbus_softc {
40 int mb_nada;
41 };
42
43 /*
44 * Initial lists as required by autoconf(9). The data from ioconf.c
45 * is patched in by rump_mainbus_init().
46 */
47 const struct cfattachinit cfattachinit[] = {
48 { NULL, NULL },
49 };
50 struct cfdata cfdata[] = {
51 { NULL, NULL, 0, FSTATE_NOTFOUND, NULL, 0, NULL}, /* replaced by init */
52 { NULL, NULL, 0, FSTATE_NOTFOUND, NULL, 0, NULL},
53 };
54 struct cfdriver * const cfdriver_list_initial[] = {
55 NULL,
56 };
57
58 #include "ioconf.c"
59
60 CFATTACH_DECL_NEW(mainbus, sizeof(struct mainbus_softc),
61 mainbus_match, mainbus_attach, NULL, NULL);
62
63 const short cfroots[] = {
64 0, /* mainbus */
65 -1
66 };
67
68 /* actually used */
69 #define MAXPDEVS 256
70 struct pdevinit pdevinit[MAXPDEVS] = {{NULL,0}, }; /* XXX: static limit */
71 static int pdev_total = 0;
72
73 #include <rump-sys/dev.h>
74
75 void
rump_pdev_add(void (* pdev_attach)(int),int pdev_count)76 rump_pdev_add(void (*pdev_attach)(int), int pdev_count)
77 {
78 struct pdevinit *pdev_new;
79
80 KASSERT(cold);
81
82 pdev_new = &pdevinit[pdev_total];
83 pdev_new->pdev_attach = pdev_attach;
84 pdev_new->pdev_count = pdev_count;
85
86 pdev_total++;
87 KASSERT(pdev_total < MAXPDEVS);
88 }
89
90 void
rump_pdev_finalize()91 rump_pdev_finalize()
92 {
93
94 rump_pdev_add(NULL, 0);
95 }
96
97 static int
mainbus_match(device_t parent,cfdata_t match,void * aux)98 mainbus_match(device_t parent, cfdata_t match, void *aux)
99 {
100
101 return 1;
102 }
103
104 static void
mainbus_attach(device_t parent,device_t self,void * aux)105 mainbus_attach(device_t parent, device_t self, void *aux)
106 {
107
108 aprint_normal("\n");
109 config_search(self, NULL,
110 CFARGS(.search = mainbus_search,
111 .iattr = "mainbus"));
112 }
113
114 static int
mainbus_search(device_t parent,cfdata_t cf,const int * ldesc,void * aux)115 mainbus_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
116 {
117 struct mainbus_attach_args maa;
118
119 maa.maa_unit = cf->cf_unit;
120 if (config_probe(parent, cf, &maa))
121 config_attach(parent, cf, &maa, NULL, CFARGS_NONE);
122
123 return 0;
124 }
125
126 void
rump_mainbus_init(void)127 rump_mainbus_init(void)
128 {
129
130 /* replace cfdata[0] to a state expected by autoconf(9) */
131 memcpy(&cfdata[0], &cfdata_ioconf_mainbus[0], sizeof(cfdata[0]));
132 }
133
134 void
rump_mainbus_attach(void)135 rump_mainbus_attach(void)
136 {
137 const struct cfattachinit *cfai = &cfattach_ioconf_mainbus[0];
138
139 config_cfdata_attach(cfdata, 0);
140 config_cfdriver_attach(cfdriver_ioconf_mainbus[0]);
141 config_cfattach_attach(cfai->cfai_name, cfai->cfai_list[0]);
142 }
143