1/*-
2 * Copyright (c) 1998, 2001 Nicolas Souchu
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 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/dev/smbus/smbus.c 103764 2002-09-21 21:43:49Z nsouch $
27 *
28 */
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/kernel.h>
32#include <sys/module.h>
33#include <sys/bus.h>
34
35#include <dev/smbus/smbconf.h>
36#include <dev/smbus/smbus.h>
37
38/*
39 * Autoconfiguration and support routines for the Philips serial I2C bus
40 */
41
42#define DEVTOSMBUS(dev) ((struct smbus_device*)device_get_ivars(dev))
43
44static devclass_t smbus_devclass;
45
46/*
47 * Device methods
48 */
49static int smbus_probe(device_t);
50static int smbus_attach(device_t);
51static int smbus_add_child(device_t dev, int order, const char *name, int unit);
52
53static device_method_t smbus_methods[] = {
54 /* device interface */
55 DEVMETHOD(device_probe, smbus_probe),
56 DEVMETHOD(device_attach, smbus_attach),
57 DEVMETHOD(device_detach, bus_generic_detach),
58
59 /* bus interface */
60 DEVMETHOD(bus_add_child, smbus_add_child),
61 DEVMETHOD(bus_print_child, bus_generic_print_child),
62
63 { 0, 0 }
64};
65
66static driver_t smbus_driver = {
67 "smbus",
68 smbus_methods,
69 sizeof(struct smbus_softc),
70};
71
72/*
73 * At 'probe' time, we add all the devices which we know about to the
74 * bus. The generic attach routine will probe and attach them if they
75 * are alive.
76 */
77static int
78smbus_probe(device_t dev)
79{
80 device_set_desc(dev, "System Management Bus");
81
82 return (0);
83}
84
85static int
86smbus_attach(device_t dev)
87{
88 device_add_child(dev, NULL, -1);
89 bus_generic_attach(dev);
90
91 return (0);
92}
93
94static int
95smbus_add_child(device_t dev, int order, const char *name, int unit)
96{
97 device_add_child_ordered(dev, order, name, unit);
98
99 bus_generic_attach(dev);
100
101 return (0);
102}
103
104void
105smbus_generic_intr(device_t dev, u_char devaddr, char low, char high)
106{
107 return;
108}
109
110DRIVER_MODULE(smbus, iicsmb, smbus_driver, smbus_devclass, 0, 0);
111DRIVER_MODULE(smbus, bktr, smbus_driver, smbus_devclass, 0, 0);
112DRIVER_MODULE(smbus, intsmb, smbus_driver, smbus_devclass, 0, 0);
113DRIVER_MODULE(smbus, alpm, smbus_driver, smbus_devclass, 0, 0);
114DRIVER_MODULE(smbus, ichsmb, smbus_driver, smbus_devclass, 0, 0);
115DRIVER_MODULE(smbus, amdpm, smbus_driver, smbus_devclass, 0, 0);
116DRIVER_MODULE(smbus, viapropm, smbus_driver, smbus_devclass, 0, 0);
117DRIVER_MODULE(smbus, nfpm, smbus_driver, smbus_devclass, 0, 0);
118MODULE_VERSION(smbus, SMBUS_MODVER);