1 /* $NetBSD: ukphy.c,v 1.2 1999/04/23 04:24:32 thorpej Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
11 * NASA Ames Research Center, and by Frank van der Linden.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 /*-
36 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
50 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
52 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
53 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
54 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
55 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
56 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
57 */
58
59 #include <sys/cdefs.h>
60 /*
61 * driver for generic unknown PHYs
62 */
63
64 #include <sys/param.h>
65 #include <sys/systm.h>
66 #include <sys/kernel.h>
67 #include <sys/socket.h>
68 #include <sys/errno.h>
69 #include <sys/module.h>
70 #include <sys/bus.h>
71
72 #include <net/if.h>
73 #include <net/if_media.h>
74
75 #include <dev/mii/mii.h>
76 #include <dev/mii/miivar.h>
77
78 #include "miibus_if.h"
79
80 static int ukphy_probe(device_t);
81 static int ukphy_attach(device_t);
82
83 static device_method_t ukphy_methods[] = {
84 /* device interface */
85 DEVMETHOD(device_probe, ukphy_probe),
86 DEVMETHOD(device_attach, ukphy_attach),
87 DEVMETHOD(device_detach, mii_phy_detach),
88 DEVMETHOD(device_shutdown, bus_generic_shutdown),
89 DEVMETHOD_END
90 };
91
92 static driver_t ukphy_driver = {
93 "ukphy",
94 ukphy_methods,
95 sizeof(struct mii_softc)
96 };
97
98 DRIVER_MODULE(ukphy, miibus, ukphy_driver, 0, 0);
99
100 static int ukphy_service(struct mii_softc *, struct mii_data *, int);
101
102 static const struct mii_phy_funcs ukphy_funcs = {
103 ukphy_service,
104 ukphy_status,
105 mii_phy_reset
106 };
107
108 static int
ukphy_probe(device_t dev)109 ukphy_probe(device_t dev)
110 {
111
112 /*
113 * We know something is here, so always match at a low priority.
114 */
115 device_set_desc(dev, "Generic IEEE 802.3u media interface");
116 return (BUS_PROBE_GENERIC);
117 }
118
119 static int
ukphy_attach(device_t dev)120 ukphy_attach(device_t dev)
121 {
122 struct mii_softc *sc;
123
124 sc = device_get_softc(dev);
125
126 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &ukphy_funcs, 1);
127 mii_phy_setmedia(sc);
128
129 return (0);
130 }
131
132 static int
ukphy_service(struct mii_softc * sc,struct mii_data * mii,int cmd)133 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
134 {
135
136 switch (cmd) {
137 case MII_POLLSTAT:
138 break;
139
140 case MII_MEDIACHG:
141 mii_phy_setmedia(sc);
142 break;
143
144 case MII_TICK:
145 if (mii_phy_tick(sc) == EJUSTRETURN)
146 return (0);
147 break;
148 }
149
150 /* Update the media status. */
151 PHY_STATUS(sc);
152
153 /* Callback if something changed. */
154 mii_phy_update(sc, cmd);
155 return (0);
156 }
157