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 $
43 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
45 * Redistribution and use in source and binary forms, with or without
46 * modification, are permitted provided that the following conditions
48 * 1. Redistributions of source code must retain the above copyright
49 * notice, this list of conditions and the following disclaimer.
50 * 2. Redistributions in binary form must reproduce the above copyright
51 * notice, this list of conditions and the following disclaimer in the
52 * documentation and/or other materials provided with the distribution.
53 * 3. All advertising materials mentioning features or use of this software
54 * must display the following acknowledgement:
55 * This product includes software developed by Manuel Bouyer.
56 * 4. The name of the author may not be used to endorse or promote products
57 * derived from this software without specific prior written permission.
59 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
60 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
61 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
62 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
63 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
64 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
65 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
66 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
67 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
68 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
72 * driver for 3Com internal PHYs
75 #include <sys/param.h>
76 #include <sys/systm.h>
77 #include <sys/kernel.h>
78 #include <sys/socket.h>
79 #include <sys/module.h>
83 #include <net/if_media.h>
89 #include "miibus_if.h"
91 static int exphy_probe (device_t);
92 static int exphy_attach (device_t);
94 static device_method_t exphy_methods[] = {
95 /* device interface */
96 DEVMETHOD(device_probe, exphy_probe),
97 DEVMETHOD(device_attach, exphy_attach),
98 DEVMETHOD(device_detach, ukphy_detach),
99 DEVMETHOD(device_shutdown, bus_generic_shutdown),
103 static devclass_t exphy_devclass;
105 static driver_t exphy_driver = {
108 sizeof(struct mii_softc)
111 DRIVER_MODULE(xlphy, miibus, exphy_driver, exphy_devclass, NULL, NULL);
113 int exphy_service (struct mii_softc *, struct mii_data *, int);
114 void exphy_reset (struct mii_softc *);
117 exphy_probe(device_t dev)
119 struct mii_attach_args *ma;
122 ma = device_get_ivars(dev);
123 parent = device_get_parent(device_get_parent(dev));
126 * Argh, 3Com PHY reports oui == 0 model == 0!
128 if ((MII_OUI(ma->mii_id1, ma->mii_id2) != 0 ||
129 MII_MODEL(ma->mii_id2) != 0) &&
130 (MII_OUI(ma->mii_id1, ma->mii_id2) != MII_OUI_BROADCOM ||
131 MII_MODEL(ma->mii_id2) != MII_MODEL_BROADCOM_3C905C))
135 * Make sure the parent is an `xl'.
137 if (strcmp(device_get_name(parent), "xl") != 0)
140 if (MII_OUI(ma->mii_id1, ma->mii_id2) == 0)
141 device_set_desc(dev, "3Com internal media interface");
143 device_set_desc(dev, MII_STR_BROADCOM_3C905C);
149 exphy_attach(device_t dev)
151 struct mii_softc *sc;
152 struct mii_attach_args *ma;
153 struct mii_data *mii;
155 sc = device_get_softc(dev);
156 ma = device_get_ivars(dev);
157 mii_softc_init(sc, ma);
158 sc->mii_dev = device_get_parent(dev);
159 mii = device_get_softc(sc->mii_dev);
162 * The 3Com PHY can never be isolated, so never allow non-zero
165 if (mii->mii_instance != 0) {
166 device_printf(dev, "ignoring this PHY, non-zero instance\n");
170 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
172 sc->mii_inst = mii->mii_instance;
173 sc->mii_service = exphy_service;
174 sc->mii_reset = exphy_reset;
178 sc->mii_flags |= MIIF_NOISOLATE;
182 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
183 device_printf(dev, " ");
184 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
185 kprintf("no media present");
187 mii_phy_add_media(sc);
190 MIIBUS_MEDIAINIT(sc->mii_dev);
195 exphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
197 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
200 * We can't isolate the 3Com PHY, so it has to be the only one!
202 KASSERT(IFM_INST(ife->ifm_media) == sc->mii_inst,
203 ("exphy_service: can't isolate 3Com PHY"));
211 * If the interface is not up, don't do anything.
213 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
216 if (IFM_SUBTYPE(ife->ifm_media) == IFM_100_T4) {
218 * XXX Not supported as a manual setting right now.
223 mii_phy_set_media(sc);
228 * Is the interface even up?
230 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
234 * Only used for autonegotiation.
236 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
240 * The 3Com PHY's autonegotiation doesn't need to be
241 * kicked; it continues in the background.
246 /* Update the media status. */
249 /* Callback if something changed. */
250 mii_phy_update(sc, cmd);
255 exphy_reset(struct mii_softc *sc)
261 * XXX 3Com PHY doesn't set the BMCR properly after
262 * XXX reset, which breaks autonegotiation.
264 PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_AUTOEN|BMCR_FDX);