xref: /netbsd/sys/arch/sun3/sun3/obmem.c (revision c4a72b64)
1 /*	$NetBSD: obmem.c,v 1.18 2002/10/02 16:02:29 thorpej Exp $	*/
2 
3 /*-
4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Adam Glass and Gordon W. Ross.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 /*
40  * On-board MEMory (OBMEM)
41  * Used by frame buffers...
42  */
43 
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/device.h>
47 
48 #include <machine/autoconf.h>
49 #include <sun3/sun3/obmem.h>
50 
51 static int  obmem_match __P((struct device *, struct cfdata *, void *));
52 static void obmem_attach __P((struct device *, struct device *, void *));
53 
54 CFATTACH_DECL(obmem, sizeof(struct device),
55     obmem_match, obmem_attach, NULL, NULL);
56 
57 static int
58 obmem_match(parent, cf, aux)
59 	struct device *parent;
60 	struct cfdata *cf;
61 	void *aux;
62 {
63 	struct confargs *ca = aux;
64 
65 	if (ca->ca_bustype != BUS_OBMEM)
66 		return (0);
67 	return(1);
68 }
69 
70 static void
71 obmem_attach(parent, self, args)
72 	struct device *parent;
73 	struct device *self;
74 	void *args;
75 {
76 	printf("\n");
77 
78 	/* We know ca_bustype == BUS_OBMEM */
79 	(void) config_search(bus_scan, self, args);
80 }
81