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 $
30 * $DragonFly: src/sys/dev/netif/mii_layer/inphy.c,v 1.2 2003/06/17 04:28:28 dillon Exp $
34 * driver for Intel 82553 and 82555 PHYs
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/socket.h>
44 #include <net/if_media.h>
46 #include <dev/mii/mii.h>
47 #include <dev/mii/miivar.h>
48 #include <dev/mii/miidevs.h>
50 #include <dev/mii/inphyreg.h>
52 #include "miibus_if.h"
54 static int inphy_probe(device_t dev);
55 static int inphy_attach(device_t dev);
56 static int inphy_detach(device_t dev);
58 static device_method_t inphy_methods[] = {
59 /* device interface */
60 DEVMETHOD(device_probe, inphy_probe),
61 DEVMETHOD(device_attach, inphy_attach),
62 DEVMETHOD(device_detach, inphy_detach),
63 DEVMETHOD(device_shutdown, bus_generic_shutdown),
67 static devclass_t inphy_devclass;
69 static driver_t inphy_driver = {
72 sizeof(struct mii_softc)
75 DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, 0, 0);
77 int inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd);
78 void inphy_status(struct mii_softc *sc);
82 inphy_probe(device_t dev)
84 struct mii_attach_args *ma;
87 ma = device_get_ivars(dev);
88 parent = device_get_parent(device_get_parent(dev));
90 /* Intel 82553 A/B steppings */
91 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxINTEL &&
92 MII_MODEL(ma->mii_id2) == MII_MODEL_xxINTEL_I82553AB) {
93 device_set_desc(dev, MII_STR_xxINTEL_I82553AB);
97 if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL) {
98 switch (MII_MODEL(ma->mii_id2)) {
99 case MII_MODEL_INTEL_I82555:
100 device_set_desc(dev, MII_STR_INTEL_I82555);
102 case MII_MODEL_INTEL_I82553C:
103 device_set_desc(dev, MII_STR_INTEL_I82553C);
105 case MII_MODEL_INTEL_I82562EM:
106 device_set_desc(dev, MII_STR_INTEL_I82562EM);
108 case MII_MODEL_INTEL_I82562ET:
109 device_set_desc(dev, MII_STR_INTEL_I82562ET);
118 inphy_attach(device_t dev)
120 struct mii_softc *sc;
121 struct mii_attach_args *ma;
122 struct mii_data *mii;
124 sc = device_get_softc(dev);
125 ma = device_get_ivars(dev);
126 sc->mii_dev = device_get_parent(dev);
127 mii = device_get_softc(sc->mii_dev);
128 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
130 sc->mii_inst = mii->mii_instance;
131 sc->mii_phy = ma->mii_phyno;
132 sc->mii_service = inphy_service;
137 sc->mii_flags |= MIIF_NOISOLATE;
140 ifmedia_add(&mii->mii_media,
141 IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
142 BMCR_LOOP|BMCR_S100, NULL);
146 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
147 device_printf(dev, " ");
148 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
149 printf("no media present");
151 mii_add_media(mii, sc->mii_capabilities, sc->mii_inst);
154 MIIBUS_MEDIAINIT(sc->mii_dev);
160 inphy_detach(device_t dev)
162 struct mii_softc *sc;
163 struct mii_data *mii;
165 sc = device_get_softc(dev);
166 mii = device_get_softc(device_get_softc(dev));
167 mii_phy_auto_stop(sc);
169 LIST_REMOVE(sc, mii_list);
175 inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
177 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
182 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
188 reg = PHY_READ(sc, MII_BMCR);
189 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
194 * If the interface is not up, don't do anything.
196 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
199 switch (IFM_SUBTYPE(ife->ifm_media)) {
202 * If we're already in auto mode, just return.
204 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
206 (void) mii_phy_auto(sc, 0);
210 * XXX Not supported as a manual setting right now.
215 * BMCR data is stored in the ifmedia entry.
217 PHY_WRITE(sc, MII_ANAR, mii_anar(ife->ifm_media));
218 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
223 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
227 * Is the interface even up?
229 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
233 * Only used for autonegotiation.
235 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
240 * Read the status register twice; BMSR_LINK is latch-low.
242 reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
247 * Only retry autonegotiation every 5 seconds.
249 if (++sc->mii_ticks != 5)
254 if (mii_phy_auto(sc, 0) == EJUSTRETURN)
259 /* Update the media status. */
262 /* Callback if something changed. */
263 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
264 MIIBUS_STATCHG(sc->mii_dev);
265 sc->mii_active = mii->mii_media_active;
271 inphy_status(struct mii_softc *sc)
273 struct mii_data *mii = sc->mii_pdata;
276 mii->mii_media_status = IFM_AVALID;
277 mii->mii_media_active = IFM_ETHER;
279 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
280 if (bmsr & BMSR_LINK)
281 mii->mii_media_status |= IFM_ACTIVE;
283 bmcr = PHY_READ(sc, MII_BMCR);
284 if (bmcr & BMCR_ISO) {
285 mii->mii_media_active |= IFM_NONE;
286 mii->mii_media_status = 0;
290 if (bmcr & BMCR_LOOP)
291 mii->mii_media_active |= IFM_LOOP;
293 if (bmcr & BMCR_AUTOEN) {
294 if ((bmsr & BMSR_ACOMP) == 0) {
295 mii->mii_media_active |= IFM_NONE;
299 scr = PHY_READ(sc, MII_INPHY_SCR);
301 mii->mii_media_active |= IFM_100_TX;
303 mii->mii_media_active |= IFM_10_T;
305 mii->mii_media_active |= IFM_FDX;
307 mii->mii_media_active |= mii_media_from_bmcr(bmcr);