2 * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
7 * NASA Ames Research Center.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the NetBSD
20 * Foundation, Inc. and its contributors.
21 * 4. Neither the name of The NetBSD Foundation nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
39 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
44 * 1. Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution.
49 * 3. All advertising materials mentioning features or use of this software
50 * must display the following acknowledgement:
51 * This product includes software developed by Manuel Bouyer.
52 * 4. The name of the author may not be used to endorse or promote products
53 * derived from this software without specific prior written permission.
55 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
56 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
57 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
58 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
59 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
60 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
64 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
66 * from: NetBSD: bmtphy.c,v 1.8 2002/07/03 06:25:50 simonb Exp
70 #include <sys/cdefs.h>
71 __FBSDID("$FreeBSD$");
74 * Driver for the Broadcom BCM5201/BCM5202 "Mini-Theta" PHYs. This also
75 * drives the PHY on the 3Com 3c905C. The 3c905C's PHY is described in
76 * the 3c905C data sheet.
79 #include <sys/param.h>
80 #include <sys/systm.h>
81 #include <sys/kernel.h>
82 #include <sys/module.h>
83 #include <sys/socket.h>
87 #include <net/if_media.h>
89 #include <dev/mii/mii.h>
90 #include <dev/mii/miivar.h>
93 #include <dev/mii/bmtphyreg.h>
95 #include "miibus_if.h"
97 static int bmtphy_probe(device_t);
98 static int bmtphy_attach(device_t);
100 static device_method_t bmtphy_methods[] = {
101 /* Device interface */
102 DEVMETHOD(device_probe, bmtphy_probe),
103 DEVMETHOD(device_attach, bmtphy_attach),
104 DEVMETHOD(device_detach, mii_phy_detach),
105 DEVMETHOD(device_shutdown, bus_generic_shutdown),
110 static devclass_t bmtphy_devclass;
112 static driver_t bmtphy_driver = {
115 sizeof(struct mii_softc)
118 DRIVER_MODULE(bmtphy, miibus, bmtphy_driver, bmtphy_devclass, 0, 0);
120 static int bmtphy_service(struct mii_softc *, struct mii_data *, int);
121 static void bmtphy_status(struct mii_softc *);
123 static const struct mii_phydesc bmtphys_dp[] = {
124 MII_PHY_DESC(BROADCOM, BCM4401),
125 MII_PHY_DESC(BROADCOM, BCM5201),
126 MII_PHY_DESC(BROADCOM, BCM5221),
130 static const struct mii_phydesc bmtphys_lp[] = {
131 MII_PHY_DESC(BROADCOM, 3C905B),
132 MII_PHY_DESC(BROADCOM, 3C905C),
137 bmtphy_probe(device_t dev)
141 /* Let exphy(4) take precedence for these. */
142 rval = mii_phy_dev_probe(dev, bmtphys_lp, BUS_PROBE_LOW_PRIORITY);
146 return (mii_phy_dev_probe(dev, bmtphys_dp, BUS_PROBE_DEFAULT));
150 bmtphy_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 sc->mii_dev = device_get_parent(dev);
159 mii = device_get_softc(sc->mii_dev);
160 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
162 sc->mii_inst = mii->mii_instance;
163 sc->mii_phy = ma->mii_phyno;
164 sc->mii_service = bmtphy_service;
171 sc->mii_capabilities =
172 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
173 device_printf(dev, " ");
174 mii_phy_add_media(sc);
177 MIIBUS_MEDIAINIT(sc->mii_dev);
183 bmtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
185 struct ifmedia_entry *ife;
188 ife = mii->mii_media.ifm_cur;
193 * If we're not polling our PHY instance, just return.
195 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
201 * If the media indicates a different PHY instance,
204 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
205 reg = PHY_READ(sc, MII_BMCR);
206 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
211 * If the interface is not up, don't do anything.
213 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
216 mii_phy_setmedia(sc);
221 * If we're not currently selected, just return.
223 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
225 if (mii_phy_tick(sc) == EJUSTRETURN)
230 /* Update the media status. */
233 /* Callback if something changed. */
234 mii_phy_update(sc, cmd);
240 bmtphy_status(struct mii_softc *sc)
242 struct mii_data *mii;
243 struct ifmedia_entry *ife;
244 int bmsr, bmcr, aux_csr;
247 ife = mii->mii_media.ifm_cur;
249 mii->mii_media_status = IFM_AVALID;
250 mii->mii_media_active = IFM_ETHER;
252 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
253 aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR);
255 if (bmsr & BMSR_LINK)
256 mii->mii_media_status |= IFM_ACTIVE;
258 bmcr = PHY_READ(sc, MII_BMCR);
259 if (bmcr & BMCR_ISO) {
260 mii->mii_media_active |= IFM_NONE;
261 mii->mii_media_status = 0;
265 if (bmcr & BMCR_LOOP)
266 mii->mii_media_active |= IFM_LOOP;
268 if (bmcr & BMCR_AUTOEN) {
270 * The media status bits are only valid if autonegotiation
271 * has completed (or it's disabled).
273 if ((bmsr & BMSR_ACOMP) == 0) {
274 /* Erg, still trying, I guess... */
275 mii->mii_media_active |= IFM_NONE;
279 if (aux_csr & AUX_CSR_SPEED)
280 mii->mii_media_active |= IFM_100_TX;
282 mii->mii_media_active |= IFM_10_T;
283 if (aux_csr & AUX_CSR_FDX)
284 mii->mii_media_active |= IFM_FDX;
286 mii->mii_media_active = ife->ifm_media;