ofw_pcib.c revision 133589 
1/*-
2 * Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier
3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000 BSDi
5 * Copyright (c) 2001 - 2003 Thomas Moestl <tmm@FreeBSD.org>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	from: FreeBSD: src/sys/dev/pci/pci_pci.c,v 1.3 2000/12/13
32 *
33 * $FreeBSD: head/sys/sparc64/pci/ofw_pcib.c 133589 2004-08-12 17:41:33Z marius $
34 */
35
36#include "opt_ofw_pci.h"
37
38#include <sys/param.h>
39#include <sys/kernel.h>
40#include <sys/bus.h>
41#include <sys/module.h>
42
43#include <dev/ofw/ofw_bus.h>
44#include <dev/ofw/openfirm.h>
45
46#include <machine/bus.h>
47#include <machine/ofw_bus.h>
48
49#include <dev/pci/pcireg.h>
50#include <dev/pci/pcivar.h>
51#include <dev/pci/pcib_private.h>
52
53#include "pcib_if.h"
54
55#include <sparc64/pci/ofw_pci.h>
56#include <sparc64/pci/ofw_pcib_subr.h>
57
58static device_probe_t ofw_pcib_probe;
59static device_attach_t ofw_pcib_attach;
60
61static device_method_t ofw_pcib_methods[] = {
62	/* Device interface */
63	DEVMETHOD(device_probe,		ofw_pcib_probe),
64	DEVMETHOD(device_attach,	ofw_pcib_attach),
65	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
66	DEVMETHOD(device_suspend,	bus_generic_suspend),
67	DEVMETHOD(device_resume,	bus_generic_resume),
68
69	/* Bus interface */
70	DEVMETHOD(bus_print_child,	bus_generic_print_child),
71	DEVMETHOD(bus_read_ivar,	pcib_read_ivar),
72	DEVMETHOD(bus_write_ivar,	pcib_write_ivar),
73	DEVMETHOD(bus_alloc_resource,	pcib_alloc_resource),
74	DEVMETHOD(bus_release_resource,	bus_generic_release_resource),
75	DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
76	DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
77	DEVMETHOD(bus_setup_intr,	bus_generic_setup_intr),
78	DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
79
80	/* pcib interface */
81	DEVMETHOD(pcib_maxslots,	pcib_maxslots),
82	DEVMETHOD(pcib_read_config,	pcib_read_config),
83	DEVMETHOD(pcib_write_config,	pcib_write_config),
84	DEVMETHOD(pcib_route_interrupt,	ofw_pcib_gen_route_interrupt),
85
86	/* ofw_bus interface */
87	DEVMETHOD(ofw_bus_get_node,	ofw_pcib_gen_get_node),
88
89	/* ofw_pci interface */
90	DEVMETHOD(ofw_pci_adjust_busrange,	ofw_pcib_gen_adjust_busrange),
91
92	{ 0, 0 }
93};
94
95static driver_t ofw_pcib_driver = {
96	"pcib",
97	ofw_pcib_methods,
98	sizeof(struct ofw_pcib_gen_softc),
99};
100
101DRIVER_MODULE(ofw_pcib, pci, ofw_pcib_driver, pcib_devclass, 0, 0);
102
103static int
104ofw_pcib_probe(device_t dev)
105{
106	if ((pci_get_class(dev) == PCIC_BRIDGE) &&
107	    (pci_get_subclass(dev) == PCIS_BRIDGE_PCI) &&
108	    ofw_bus_get_node(dev) != 0) {
109		device_set_desc(dev, "OFW PCI-PCI bridge");
110		return (0);
111	}
112	return (ENXIO);
113}
114
115static int
116ofw_pcib_attach(device_t dev)
117{
118	struct ofw_pcib_gen_softc *sc = device_get_softc(dev);
119
120	ofw_pcib_gen_setup(dev);
121	pcib_attach_common(dev);
122	device_add_child(dev, "pci", sc->ops_pcib_sc.secbus);
123	return (bus_generic_attach(dev));
124}
125