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
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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 1.14 2004/05/30 17:57:40 phk 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>
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_service(struct mii_softc *, struct mii_data *, int);
56 static void inphy_status(struct mii_softc *);
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, ukphy_detach),
63 DEVMETHOD(device_shutdown, bus_generic_shutdown),
67 static const struct mii_phydesc inphys[] = {
68 MII_PHYDESC(xxINTEL, I82553AB), /* Intel 82553 A/B steppings */
69 MII_PHYDESC(INTEL, I82555),
70 MII_PHYDESC(INTEL, I82553C),
71 MII_PHYDESC(INTEL, I82562EM),
72 MII_PHYDESC(INTEL, I82562ET),
76 static devclass_t inphy_devclass;
78 static driver_t inphy_driver = {
81 sizeof(struct mii_softc)
84 DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, NULL, NULL);
87 inphy_probe(device_t dev)
89 struct mii_attach_args *ma = device_get_ivars(dev);
90 const struct mii_phydesc *mpd;
92 mpd = mii_phy_match(ma, inphys);
94 device_set_desc(dev, mpd->mpd_name);
101 inphy_attach(device_t dev)
103 struct mii_softc *sc;
104 struct mii_attach_args *ma;
105 struct mii_data *mii;
107 sc = device_get_softc(dev);
108 ma = device_get_ivars(dev);
109 mii_softc_init(sc, ma);
110 sc->mii_dev = device_get_parent(dev);
111 mii = device_get_softc(sc->mii_dev);
112 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
114 sc->mii_inst = mii->mii_instance;
115 sc->mii_service = inphy_service;
120 sc->mii_flags |= MIIF_NOISOLATE;
123 ifmedia_add(&mii->mii_media,
124 IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
125 MII_MEDIA_100_TX, NULL);
129 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
131 device_printf(dev, " ");
132 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
133 kprintf("no media present");
135 mii_phy_add_media(sc);
138 MIIBUS_MEDIAINIT(sc->mii_dev);
143 inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
145 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
150 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
155 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
156 reg = PHY_READ(sc, MII_BMCR);
157 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
162 * If the interface is not up, don't do anything.
164 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
167 mii_phy_set_media(sc);
171 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
174 if (mii_phy_tick(sc) == EJUSTRETURN)
179 /* Update the media status. */
182 /* Callback if something changed. */
183 mii_phy_update(sc, cmd);
188 inphy_status(struct mii_softc *sc)
190 struct mii_data *mii = sc->mii_pdata;
193 mii->mii_media_status = IFM_AVALID;
194 mii->mii_media_active = IFM_ETHER;
196 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
197 if (bmsr & BMSR_LINK)
198 mii->mii_media_status |= IFM_ACTIVE;
200 bmcr = PHY_READ(sc, MII_BMCR);
201 if (bmcr & BMCR_ISO) {
202 mii->mii_media_active |= IFM_NONE;
203 mii->mii_media_status = 0;
207 if (bmcr & BMCR_LOOP)
208 mii->mii_media_active |= IFM_LOOP;
210 if (bmcr & BMCR_AUTOEN) {
211 if ((bmsr & BMSR_ACOMP) == 0) {
212 mii->mii_media_active |= IFM_NONE;
216 scr = PHY_READ(sc, MII_INPHY_SCR);
217 if ((bmsr & BMSR_100T4) && (scr & SCR_T4))
218 mii->mii_media_active |= IFM_100_T4;
219 else if (scr & SCR_S100)
220 mii->mii_media_active |= IFM_100_TX;
222 mii->mii_media_active |= IFM_10_T;
224 mii->mii_media_active |= IFM_FDX;
226 mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media;