fdc_cbus.c revision 132103 
1/*
2 * Copyright (c) 2004 Yoshihiro TAKAHASHI
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 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions, and the following disclaimer,
10 *    without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in
13 *    the documentation and/or other materials provided with the
14 *    distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: head/sys/pc98/cbus/fdc_cbus.c 132103 2004-07-13 13:14:37Z nyan $");
31
32#include <sys/param.h>
33#include <sys/bio.h>
34#include <sys/bus.h>
35#include <sys/kernel.h>
36#include <sys/module.h>
37#include <sys/rman.h>
38#include <sys/systm.h>
39
40#include <machine/bus.h>
41
42#include <pc98/pc98/fdcvar.h>
43#include <pc98/pc98/fdreg.h>
44
45#include <isa/isavar.h>
46#include <pc98/pc98/pc98.h>
47
48static int
49fdc_cbus_probe(device_t dev)
50{
51	int	error;
52	struct	fdc_data *fdc;
53
54	fdc = device_get_softc(dev);
55	fdc->fdc_dev = dev;
56
57	/* Check pnp ids */
58	if (isa_get_vendorid(dev))
59		return (ENXIO);
60
61	/* Attempt to allocate our resources for the duration of the probe */
62	error = fdc_alloc_resources(fdc);
63	if (!error)
64		error = fdc_initial_reset(fdc);
65
66	fdc_release_resources(fdc);
67	return (error);
68}
69
70static device_method_t fdc_methods[] = {
71	/* Device interface */
72	DEVMETHOD(device_probe,		fdc_cbus_probe),
73	DEVMETHOD(device_attach,	fdc_attach),
74	DEVMETHOD(device_detach,	fdc_detach),
75	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
76	DEVMETHOD(device_suspend,	bus_generic_suspend),
77	DEVMETHOD(device_resume,	bus_generic_resume),
78
79	/* Bus interface */
80	DEVMETHOD(bus_print_child,	fdc_print_child),
81	DEVMETHOD(bus_read_ivar,	fdc_read_ivar),
82	DEVMETHOD(bus_write_ivar,       fdc_write_ivar),
83	/* Our children never use any other bus interface methods. */
84
85	{ 0, 0 }
86};
87
88static driver_t fdc_driver = {
89	"fdc",
90	fdc_methods,
91	sizeof(struct fdc_data)
92};
93
94DRIVER_MODULE(fdc, isa, fdc_driver, fdc_devclass, 0, 0);
95