1 /* $NetBSD: mainbus.c,v 1.7 2021/08/07 16:19:07 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2008 Tetsuya Isaki. 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 OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * 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 /*
29 * mainbus driver
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.7 2021/08/07 16:19:07 thorpej Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/device.h>
38
39 static int mainbus_match(device_t, cfdata_t, void *);
40 static void mainbus_attach(device_t, device_t, void *);
41
42 CFATTACH_DECL_NEW(mainbus, 0,
43 mainbus_match, mainbus_attach, NULL, NULL);
44
45 static int mainbus_attached;
46
47 static int
mainbus_match(device_t parent,cfdata_t cf,void * aux)48 mainbus_match(device_t parent, cfdata_t cf, void *aux)
49 {
50
51 if (mainbus_attached)
52 return 0;
53
54 return 1;
55 }
56
57 /*
58 * "find" all the things that should be there.
59 */
60 static void
mainbus_attach(device_t parent,device_t self,void * aux)61 mainbus_attach(device_t parent, device_t self, void *aux)
62 {
63
64 mainbus_attached = 1;
65
66 aprint_normal("\n");
67
68 config_found(self, __UNCONST("intio") , NULL, CFARGS_NONE);
69 config_found(self, __UNCONST("grfbus") , NULL, CFARGS_NONE);
70 }
71