1 /* $NetBSD: exphy.c,v 1.16 1999/04/23 04:24:32 thorpej Exp $ */
4 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center, and by Frank van der Linden.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
34 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
57 #include <sys/cdefs.h>
58 __FBSDID("$FreeBSD$");
61 * driver for 3Com internal PHYs
64 #include <sys/param.h>
65 #include <sys/systm.h>
66 #include <sys/kernel.h>
67 #include <sys/socket.h>
68 #include <sys/module.h>
72 #include <net/if_media.h>
74 #include <dev/mii/mii.h>
75 #include <dev/mii/miivar.h>
78 #include "miibus_if.h"
80 static int xlphy_probe(device_t);
81 static int xlphy_attach(device_t);
83 static device_method_t xlphy_methods[] = {
84 /* device interface */
85 DEVMETHOD(device_probe, xlphy_probe),
86 DEVMETHOD(device_attach, xlphy_attach),
87 DEVMETHOD(device_detach, mii_phy_detach),
88 DEVMETHOD(device_shutdown, bus_generic_shutdown),
92 static devclass_t xlphy_devclass;
94 static driver_t xlphy_driver = {
97 sizeof(struct mii_softc)
100 DRIVER_MODULE(xlphy, miibus, xlphy_driver, xlphy_devclass, 0, 0);
102 static int xlphy_service(struct mii_softc *, struct mii_data *, int);
103 static void xlphy_reset(struct mii_softc *);
106 * Some 3Com internal PHYs report zero for OUI and model, others use
108 * Note that the 3Com internal PHYs having OUI 0x105a and model 0 are
109 * handled fine by ukphy(4); they can be isolated and don't require
110 * special treatment after reset.
112 static const struct mii_phydesc xlphys[] = {
113 { 0, 0, "3Com internal media interface" },
114 MII_PHY_DESC(xxBROADCOM, 3C905C),
118 static const struct mii_phy_funcs xlphy_funcs = {
125 xlphy_probe(device_t dev)
128 if (strcmp(device_get_name(device_get_parent(device_get_parent(dev))),
130 return (mii_phy_dev_probe(dev, xlphys, BUS_PROBE_DEFAULT));
135 xlphy_attach(device_t dev)
139 * The 3Com PHY can never be isolated.
141 mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
147 xlphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
156 * If the interface is not up, don't do anything.
158 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
161 mii_phy_setmedia(sc);
166 * Is the interface even up?
168 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
172 * The 3Com PHY's autonegotiation doesn't need to be
173 * kicked; it continues in the background.
178 /* Update the media status. */
181 /* Callback if something changed. */
182 mii_phy_update(sc, cmd);
187 xlphy_reset(struct mii_softc *sc)
193 * XXX 3Com PHY doesn't set the BMCR properly after
194 * XXX reset, which breaks autonegotiation.
196 PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_AUTOEN|BMCR_FDX);