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.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
39 * $FreeBSD: src/sys/dev/mii/exphy.c,v 1.4.2.2 2002/11/08 21:53:49 semenu Exp $
40 * $DragonFly: src/sys/dev/netif/mii_layer/exphy.c,v 1.9 2006/08/06 10:32:23 sephe Exp $
44 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
46 * Redistribution and use in source and binary forms, with or without
47 * modification, are permitted provided that the following conditions
49 * 1. Redistributions of source code must retain the above copyright
50 * notice, this list of conditions and the following disclaimer.
51 * 2. Redistributions in binary form must reproduce the above copyright
52 * notice, this list of conditions and the following disclaimer in the
53 * documentation and/or other materials provided with the distribution.
54 * 3. All advertising materials mentioning features or use of this software
55 * must display the following acknowledgement:
56 * This product includes software developed by Manuel Bouyer.
57 * 4. The name of the author may not be used to endorse or promote products
58 * derived from this software without specific prior written permission.
60 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
61 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
62 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
63 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
64 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
65 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
66 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
67 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
68 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
69 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
73 * driver for 3Com internal PHYs
76 #include <sys/param.h>
77 #include <sys/systm.h>
78 #include <sys/kernel.h>
79 #include <sys/socket.h>
80 #include <sys/module.h>
84 #include <net/if_media.h>
90 #include "miibus_if.h"
92 static int exphy_probe (device_t);
93 static int exphy_attach (device_t);
95 static device_method_t exphy_methods[] = {
96 /* device interface */
97 DEVMETHOD(device_probe, exphy_probe),
98 DEVMETHOD(device_attach, exphy_attach),
99 DEVMETHOD(device_detach, ukphy_detach),
100 DEVMETHOD(device_shutdown, bus_generic_shutdown),
104 static devclass_t exphy_devclass;
106 static driver_t exphy_driver = {
109 sizeof(struct mii_softc)
112 DRIVER_MODULE(xlphy, miibus, exphy_driver, exphy_devclass, 0, 0);
114 int exphy_service (struct mii_softc *, struct mii_data *, int);
115 void exphy_reset (struct mii_softc *);
118 exphy_probe(device_t dev)
120 struct mii_attach_args *ma;
123 ma = device_get_ivars(dev);
124 parent = device_get_parent(device_get_parent(dev));
127 * Argh, 3Com PHY reports oui == 0 model == 0!
129 if ((MII_OUI(ma->mii_id1, ma->mii_id2) != 0 ||
130 MII_MODEL(ma->mii_id2) != 0) &&
131 (MII_OUI(ma->mii_id1, ma->mii_id2) != MII_OUI_BROADCOM ||
132 MII_MODEL(ma->mii_id2) != MII_MODEL_BROADCOM_3C905C))
136 * Make sure the parent is an `xl'.
138 if (strcmp(device_get_name(parent), "xl") != 0)
141 if (MII_OUI(ma->mii_id1, ma->mii_id2) == 0)
142 device_set_desc(dev, "3Com internal media interface");
144 device_set_desc(dev, MII_STR_BROADCOM_3C905C);
150 exphy_attach(device_t dev)
152 struct mii_softc *sc;
153 struct mii_attach_args *ma;
154 struct mii_data *mii;
156 sc = device_get_softc(dev);
157 ma = device_get_ivars(dev);
158 mii_softc_init(sc, ma);
159 sc->mii_dev = device_get_parent(dev);
160 mii = device_get_softc(sc->mii_dev);
163 * The 3Com PHY can never be isolated, so never allow non-zero
166 if (mii->mii_instance != 0) {
167 device_printf(dev, "ignoring this PHY, non-zero instance\n");
171 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
173 sc->mii_inst = mii->mii_instance;
174 sc->mii_service = exphy_service;
175 sc->mii_reset = exphy_reset;
179 sc->mii_flags |= MIIF_NOISOLATE;
183 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
184 device_printf(dev, " ");
185 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
186 printf("no media present");
188 mii_phy_add_media(sc);
191 MIIBUS_MEDIAINIT(sc->mii_dev);
196 exphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
198 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
201 * We can't isolate the 3Com PHY, so it has to be the only one!
203 KASSERT(IFM_INST(ife->ifm_media) == sc->mii_inst,
204 ("exphy_service: can't isolate 3Com PHY"));
212 * If the interface is not up, don't do anything.
214 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
217 if (IFM_SUBTYPE(ife->ifm_media) == IFM_100_T4) {
219 * XXX Not supported as a manual setting right now.
224 mii_phy_set_media(sc);
229 * Is the interface even up?
231 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
235 * Only used for autonegotiation.
237 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
241 * The 3Com PHY's autonegotiation doesn't need to be
242 * kicked; it continues in the background.
247 /* Update the media status. */
250 /* Callback if something changed. */
251 mii_phy_update(sc, cmd);
256 exphy_reset(struct mii_softc *sc)
262 * XXX 3Com PHY doesn't set the BMCR properly after
263 * XXX reset, which breaks autonegotiation.
265 PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_AUTOEN|BMCR_FDX);