xref: /freebsd/sys/powerpc/mambo/mambo.c (revision 2ff63af9b88c7413b7d71715b5532625752a248e)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright 2008 by Nathan Whitehorn. 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 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/module.h>
35 #include <sys/bus.h>
36 #include <sys/conf.h>
37 #include <sys/kernel.h>
38 
39 #include <dev/ofw/ofw_bus.h>
40 #include <dev/ofw/openfirm.h>
41 
42 #include <machine/bus.h>
43 
44 #include <vm/vm.h>
45 #include <vm/pmap.h>
46 
47 #include <sys/rman.h>
48 
49 /*
50  * Mambo interface
51  */
52 static int	mambobus_probe(device_t);
53 static int	mambobus_attach(device_t);
54 
55 static device_method_t  mambobus_methods[] = {
56 	/* Device interface */
57 	DEVMETHOD(device_probe,		mambobus_probe),
58 	DEVMETHOD(device_attach,	mambobus_attach),
59 
60 	/* Bus interface */
61 	DEVMETHOD(bus_add_child,	bus_generic_add_child),
62 	DEVMETHOD(bus_read_ivar,	bus_generic_read_ivar),
63 	DEVMETHOD(bus_setup_intr,	bus_generic_setup_intr),
64 	DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
65 	DEVMETHOD(bus_alloc_resource,	bus_generic_alloc_resource),
66 	DEVMETHOD(bus_release_resource,	bus_generic_release_resource),
67 	DEVMETHOD(bus_activate_resource,bus_generic_activate_resource),
68 
69 	DEVMETHOD_END
70 };
71 
72 static driver_t mambobus_driver = {
73 	"mambo",
74 	mambobus_methods,
75 	0
76 };
77 
78 DRIVER_MODULE(mambo, ofwbus, mambobus_driver, 0, 0);
79 
80 static int
81 mambobus_probe(device_t dev)
82 {
83 	const char *name = ofw_bus_get_name(dev);
84 
85 	if (name && !strcmp(name, "mambo")) {
86 		device_set_desc(dev, "Mambo Simulator");
87 		return (0);
88 	}
89 
90 	return (ENXIO);
91 }
92 
93 static int
94 mambobus_attach(device_t dev)
95 {
96 	bus_generic_probe(dev);
97 	return (bus_generic_attach(dev));
98 }
99