xref: /freebsd/sys/powerpc/mambo/mambo.c (revision edf8578117e8844e02c0121147f45e4609b30680)
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 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/module.h>
33 #include <sys/bus.h>
34 #include <sys/conf.h>
35 #include <sys/kernel.h>
36 
37 #include <dev/ofw/ofw_bus.h>
38 #include <dev/ofw/openfirm.h>
39 
40 #include <machine/bus.h>
41 
42 #include <vm/vm.h>
43 #include <vm/pmap.h>
44 
45 #include <sys/rman.h>
46 
47 /*
48  * Mambo interface
49  */
50 static int	mambobus_probe(device_t);
51 static int	mambobus_attach(device_t);
52 
53 static device_method_t  mambobus_methods[] = {
54 	/* Device interface */
55 	DEVMETHOD(device_probe,		mambobus_probe),
56 	DEVMETHOD(device_attach,	mambobus_attach),
57 
58 	/* Bus interface */
59 	DEVMETHOD(bus_add_child,	bus_generic_add_child),
60 	DEVMETHOD(bus_read_ivar,	bus_generic_read_ivar),
61 	DEVMETHOD(bus_setup_intr,	bus_generic_setup_intr),
62 	DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
63 	DEVMETHOD(bus_alloc_resource,	bus_generic_alloc_resource),
64 	DEVMETHOD(bus_release_resource,	bus_generic_release_resource),
65 	DEVMETHOD(bus_activate_resource,bus_generic_activate_resource),
66 
67 	DEVMETHOD_END
68 };
69 
70 static driver_t mambobus_driver = {
71 	"mambo",
72 	mambobus_methods,
73 	0
74 };
75 
76 DRIVER_MODULE(mambo, ofwbus, mambobus_driver, 0, 0);
77 
78 static int
79 mambobus_probe(device_t dev)
80 {
81 	const char *name = ofw_bus_get_name(dev);
82 
83 	if (name && !strcmp(name, "mambo")) {
84 		device_set_desc(dev, "Mambo Simulator");
85 		return (0);
86 	}
87 
88 	return (ENXIO);
89 }
90 
91 static int
92 mambobus_attach(device_t dev)
93 {
94 	bus_generic_probe(dev);
95 	return (bus_generic_attach(dev));
96 }
97