1 /* $NetBSD: ukphy.c,v 1.2 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.
41 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 * notice, this list of conditions and the following disclaimer in the
50 * documentation and/or other materials provided with the distribution.
51 * 3. All advertising materials mentioning features or use of this software
52 * must display the following acknowledgement:
53 * This product includes software developed by Manuel Bouyer.
54 * 4. The name of the author may not be used to endorse or promote products
55 * derived from this software without specific prior written permission.
57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
70 * driver for generic unknown PHYs
73 #include <sys/param.h>
74 #include <sys/systm.h>
75 #include <sys/kernel.h>
76 #include <sys/socket.h>
77 #include <sys/errno.h>
78 #include <sys/module.h>
82 #include <net/if_media.h>
84 #include <machine/clock.h>
86 #include <dev/mii/mii.h>
87 #include <dev/mii/miivar.h>
89 #include "miibus_if.h"
92 static const char rcsid[] =
93 "$FreeBSD: src/sys/dev/mii/ukphy.c,v 1.2.2.2 2002/11/08 21:53:49 semenu Exp $";
96 static int ukphy_probe __P((device_t));
97 static int ukphy_attach __P((device_t));
98 static int ukphy_detach __P((device_t));
100 static device_method_t ukphy_methods[] = {
101 /* device interface */
102 DEVMETHOD(device_probe, ukphy_probe),
103 DEVMETHOD(device_attach, ukphy_attach),
104 DEVMETHOD(device_detach, ukphy_detach),
105 DEVMETHOD(device_shutdown, bus_generic_shutdown),
109 static devclass_t ukphy_devclass;
111 static driver_t ukphy_driver = {
114 sizeof(struct mii_softc)
117 DRIVER_MODULE(ukphy, miibus, ukphy_driver, ukphy_devclass, 0, 0);
119 int ukphy_service __P((struct mii_softc *, struct mii_data *, int));
127 * We know something is here, so always match at a low priority.
129 device_set_desc(dev, "Generic IEEE 802.3u media interface");
137 struct mii_softc *sc;
138 struct mii_attach_args *ma;
139 struct mii_data *mii;
141 sc = device_get_softc(dev);
142 ma = device_get_ivars(dev);
143 sc->mii_dev = device_get_parent(dev);
144 mii = device_get_softc(sc->mii_dev);
145 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
148 device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
149 MII_OUI(ma->mii_id1, ma->mii_id2),
150 MII_MODEL(ma->mii_id2), MII_REV(ma->mii_id2));
152 sc->mii_inst = mii->mii_instance;
153 sc->mii_phy = ma->mii_phyno;
154 sc->mii_service = ukphy_service;
159 sc->mii_flags |= MIIF_NOISOLATE;
161 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
163 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
166 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
167 BMCR_LOOP|BMCR_S100);
172 sc->mii_capabilities =
173 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
174 device_printf(dev, " ");
175 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
176 printf("no media present");
178 mii_add_media(mii, sc->mii_capabilities,
183 MIIBUS_MEDIAINIT(sc->mii_dev);
188 static int ukphy_detach(dev)
191 struct mii_softc *sc;
192 struct mii_data *mii;
194 sc = device_get_softc(dev);
195 mii = device_get_softc(device_get_parent(dev));
196 mii_phy_auto_stop(sc);
198 LIST_REMOVE(sc, mii_list);
204 ukphy_service(sc, mii, cmd)
205 struct mii_softc *sc;
206 struct mii_data *mii;
209 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
215 * If we're not polling our PHY instance, just return.
217 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
223 * If the media indicates a different PHY instance,
226 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
227 reg = PHY_READ(sc, MII_BMCR);
228 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
233 * If the interface is not up, don't do anything.
235 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
238 switch (IFM_SUBTYPE(ife->ifm_media)) {
241 * If we're already in auto mode, just return.
243 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
245 (void) mii_phy_auto(sc, 1);
249 * XXX Not supported as a manual setting right now.
254 * BMCR data is stored in the ifmedia entry.
256 PHY_WRITE(sc, MII_ANAR,
257 mii_anar(ife->ifm_media));
258 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
264 * If we're not currently selected, just return.
266 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
270 * Only used for autonegotiation.
272 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
276 * Is the interface even up?
278 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
282 * Check to see if we have link. If we do, we don't
283 * need to restart the autonegotiation process. Read
284 * the BMSR twice in case it's latched.
286 reg = PHY_READ(sc, MII_BMSR) |
287 PHY_READ(sc, MII_BMSR);
292 * Only retry autonegotiation every 5 seconds.
294 if (++sc->mii_ticks != 5)
299 if (mii_phy_auto(sc, 0) == EJUSTRETURN)
304 /* Update the media status. */
307 /* Callback if something changed. */
308 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
309 MIIBUS_STATCHG(sc->mii_dev);
310 sc->mii_active = mii->mii_media_active;