scc_bfe_ebus.c revision 157351 
1/*-
2 * Copyright (c) 2004-2006 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
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, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/dev/scc/scc_bfe_ebus.c 157351 2006-04-01 04:51:56Z marcel $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bus.h>
33#include <sys/conf.h>
34#include <sys/kernel.h>
35#include <sys/module.h>
36
37#include <dev/ofw/ofw_bus.h>
38
39#include <machine/bus.h>
40#include <sys/rman.h>
41#include <machine/resource.h>
42
43#include <dev/scc/scc_bfe.h>
44
45#define	EBUS_REGSHFT	0
46#define	EBUS_RCLK	29491200
47
48static int
49scc_ebus_probe(device_t dev)
50{
51	struct scc_softc *sc;
52	const char *cmpt, *nm;
53
54	sc = device_get_softc(dev);
55	nm = ofw_bus_get_name(dev);
56	cmpt = ofw_bus_get_compat(dev);
57	if (cmpt == NULL)
58		cmpt = "";
59	if (!strcmp(nm, "se") || !strcmp(cmpt, "sab82532")) {
60		device_set_desc(dev, "Siemens SAB 82532 dual channel SCC");
61		sc->sc_class = &scc_sab82532_class;
62		return (scc_bfe_probe(dev, EBUS_REGSHFT, EBUS_RCLK));
63	}
64	return (ENXIO);
65}
66
67static device_method_t scc_ebus_methods[] = {
68	/* Device interface */
69	DEVMETHOD(device_probe,		scc_ebus_probe),
70	DEVMETHOD(device_attach,	scc_bfe_attach),
71	DEVMETHOD(device_detach,	scc_bfe_detach),
72
73	DEVMETHOD(bus_alloc_resource,	scc_bus_alloc_resource),
74	DEVMETHOD(bus_release_resource,	scc_bus_release_resource),
75	DEVMETHOD(bus_get_resource,	scc_bus_get_resource),
76	DEVMETHOD(bus_read_ivar,	scc_bus_read_ivar),
77	DEVMETHOD(bus_setup_intr,	scc_bus_setup_intr),
78	DEVMETHOD(bus_teardown_intr,	scc_bus_teardown_intr),
79	DEVMETHOD(bus_print_child,	bus_generic_print_child),
80	DEVMETHOD(bus_driver_added,	bus_generic_driver_added),
81	{ 0, 0 }
82};
83
84static driver_t scc_ebus_driver = {
85	scc_driver_name,
86	scc_ebus_methods,
87	sizeof(struct scc_softc),
88};
89
90DRIVER_MODULE(scc, ebus, scc_ebus_driver, scc_devclass, 0, 0);
91