2 * Copyright (c) 2001 Jonathan Lemon
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of any co-contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * $FreeBSD: src/sys/dev/mii/inphy.c,v 1.4.2.2 2002/11/08 21:53:49 semenu Exp $
33 * driver for Intel 82553 and 82555 PHYs
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/socket.h>
43 #include <net/if_media.h>
45 #include <dev/mii/mii.h>
46 #include <dev/mii/miivar.h>
47 #include <dev/mii/miidevs.h>
49 #include <dev/mii/inphyreg.h>
51 #include "miibus_if.h"
53 static int inphy_probe(device_t dev);
54 static int inphy_attach(device_t dev);
55 static int inphy_detach(device_t dev);
57 static device_method_t inphy_methods[] = {
58 /* device interface */
59 DEVMETHOD(device_probe, inphy_probe),
60 DEVMETHOD(device_attach, inphy_attach),
61 DEVMETHOD(device_detach, inphy_detach),
62 DEVMETHOD(device_shutdown, bus_generic_shutdown),
66 static devclass_t inphy_devclass;
68 static driver_t inphy_driver = {
71 sizeof(struct mii_softc)
74 DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, 0, 0);
76 int inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd);
77 void inphy_status(struct mii_softc *sc);
81 inphy_probe(device_t dev)
83 struct mii_attach_args *ma;
86 ma = device_get_ivars(dev);
87 parent = device_get_parent(device_get_parent(dev));
89 /* Intel 82553 A/B steppings */
90 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxINTEL &&
91 MII_MODEL(ma->mii_id2) == MII_MODEL_xxINTEL_I82553AB) {
92 device_set_desc(dev, MII_STR_xxINTEL_I82553AB);
96 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL) {
97 switch (MII_MODEL(ma->mii_id2)) {
98 case MII_MODEL_INTEL_I82555:
99 device_set_desc(dev, MII_STR_INTEL_I82555);
101 case MII_MODEL_INTEL_I82553C:
102 device_set_desc(dev, MII_STR_INTEL_I82553C);
104 case MII_MODEL_INTEL_I82562EM:
105 device_set_desc(dev, MII_STR_INTEL_I82562EM);
107 case MII_MODEL_INTEL_I82562ET:
108 device_set_desc(dev, MII_STR_INTEL_I82562ET);
117 inphy_attach(device_t dev)
119 struct mii_softc *sc;
120 struct mii_attach_args *ma;
121 struct mii_data *mii;
123 sc = device_get_softc(dev);
124 ma = device_get_ivars(dev);
125 sc->mii_dev = device_get_parent(dev);
126 mii = device_get_softc(sc->mii_dev);
127 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
129 sc->mii_inst = mii->mii_instance;
130 sc->mii_phy = ma->mii_phyno;
131 sc->mii_service = inphy_service;
136 sc->mii_flags |= MIIF_NOISOLATE;
139 ifmedia_add(&mii->mii_media,
140 IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
141 BMCR_LOOP|BMCR_S100, NULL);
145 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
146 device_printf(dev, " ");
147 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
148 printf("no media present");
150 mii_add_media(mii, sc->mii_capabilities, sc->mii_inst);
153 MIIBUS_MEDIAINIT(sc->mii_dev);
159 inphy_detach(device_t dev)
161 struct mii_softc *sc;
162 struct mii_data *mii;
164 sc = device_get_softc(dev);
165 mii = device_get_softc(device_get_softc(dev));
166 mii_phy_auto_stop(sc);
168 LIST_REMOVE(sc, mii_list);
174 inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
176 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
181 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
186 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
187 reg = PHY_READ(sc, MII_BMCR);
188 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
193 * If the interface is not up, don't do anything.
195 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
198 switch (IFM_SUBTYPE(ife->ifm_media)) {
201 * If we're already in auto mode, just return.
203 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
205 (void) mii_phy_auto(sc, 0);
209 * XXX Not supported as a manual setting right now.
214 * BMCR data is stored in the ifmedia entry.
216 PHY_WRITE(sc, MII_ANAR, mii_anar(ife->ifm_media));
217 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
222 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
226 * Is the interface even up?
228 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
232 * Only used for autonegotiation.
234 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
239 * Read the status register twice; BMSR_LINK is latch-low.
241 reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
246 * Only retry autonegotiation every 5 seconds.
248 if (++sc->mii_ticks != 5)
253 if (mii_phy_auto(sc, 0) == EJUSTRETURN)
258 /* Update the media status. */
261 /* Callback if something changed. */
262 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
263 MIIBUS_STATCHG(sc->mii_dev);
264 sc->mii_active = mii->mii_media_active;
270 inphy_status(struct mii_softc *sc)
272 struct mii_data *mii = sc->mii_pdata;
275 mii->mii_media_status = IFM_AVALID;
276 mii->mii_media_active = IFM_ETHER;
278 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
279 if (bmsr & BMSR_LINK)
280 mii->mii_media_status |= IFM_ACTIVE;
282 bmcr = PHY_READ(sc, MII_BMCR);
283 if (bmcr & BMCR_ISO) {
284 mii->mii_media_active |= IFM_NONE;
285 mii->mii_media_status = 0;
289 if (bmcr & BMCR_LOOP)
290 mii->mii_media_active |= IFM_LOOP;
292 if (bmcr & BMCR_AUTOEN) {
293 if ((bmsr & BMSR_ACOMP) == 0) {
294 mii->mii_media_active |= IFM_NONE;
298 scr = PHY_READ(sc, MII_INPHY_SCR);
300 mii->mii_media_active |= IFM_100_TX;
302 mii->mii_media_active |= IFM_10_T;
304 mii->mii_media_active |= IFM_FDX;
306 mii->mii_media_active |= mii_media_from_bmcr(bmcr);