1 /* $NetBSD: exphy.c,v 1.16 1999/04/23 04:24:32 thorpej Exp $ */
4 * SPDX-License-Identifier: BSD-2-Clause-NetBSD AND BSD-2-Clause
6 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
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.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
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.
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.
36 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
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.
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.
59 #include <sys/cdefs.h>
60 __FBSDID("$FreeBSD$");
63 * driver for 3Com internal PHYs
66 #include <sys/param.h>
67 #include <sys/systm.h>
68 #include <sys/kernel.h>
69 #include <sys/socket.h>
70 #include <sys/module.h>
74 #include <net/if_media.h>
76 #include <dev/mii/mii.h>
77 #include <dev/mii/miivar.h>
80 #include "miibus_if.h"
82 static int xlphy_probe(device_t);
83 static int xlphy_attach(device_t);
85 static device_method_t xlphy_methods[] = {
86 /* device interface */
87 DEVMETHOD(device_probe, xlphy_probe),
88 DEVMETHOD(device_attach, xlphy_attach),
89 DEVMETHOD(device_detach, mii_phy_detach),
90 DEVMETHOD(device_shutdown, bus_generic_shutdown),
94 static devclass_t xlphy_devclass;
96 static driver_t xlphy_driver = {
99 sizeof(struct mii_softc)
102 DRIVER_MODULE(xlphy, miibus, xlphy_driver, xlphy_devclass, 0, 0);
104 static int xlphy_service(struct mii_softc *, struct mii_data *, int);
105 static void xlphy_reset(struct mii_softc *);
108 * Some 3Com internal PHYs report zero for OUI and model, others use
110 * Note that the 3Com internal PHYs having OUI 0x105a and model 0 are
111 * handled fine by ukphy(4); they can be isolated and don't require
112 * special treatment after reset.
114 static const struct mii_phydesc xlphys[] = {
115 { 0, 0, "3Com internal media interface" },
116 MII_PHY_DESC(xxBROADCOM, 3C905C),
120 static const struct mii_phy_funcs xlphy_funcs = {
127 xlphy_probe(device_t dev)
130 if (strcmp(device_get_name(device_get_parent(device_get_parent(dev))),
132 return (mii_phy_dev_probe(dev, xlphys, BUS_PROBE_DEFAULT));
137 xlphy_attach(device_t dev)
141 * The 3Com PHY can never be isolated.
143 mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
149 xlphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
157 mii_phy_setmedia(sc);
162 * The 3Com PHY's autonegotiation doesn't need to be
163 * kicked; it continues in the background.
168 /* Update the media status. */
171 /* Callback if something changed. */
172 mii_phy_update(sc, cmd);
177 xlphy_reset(struct mii_softc *sc)
183 * XXX 3Com PHY doesn't set the BMCR properly after
184 * XXX reset, which breaks autonegotiation.
186 PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_AUTOEN|BMCR_FDX);