2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2001 Jonathan Lemon
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the author nor the names of any co-contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
37 * driver for Intel 82553 and 82555 PHYs
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/module.h>
44 #include <sys/socket.h>
48 #include <net/if_var.h>
49 #include <net/if_media.h>
51 #include <dev/mii/mii.h>
52 #include <dev/mii/miivar.h>
55 #include <dev/fxp/inphyreg.h>
57 #include "miibus_if.h"
59 static int inphy_probe(device_t dev);
60 static int inphy_attach(device_t dev);
62 static device_method_t inphy_methods[] = {
63 /* device interface */
64 DEVMETHOD(device_probe, inphy_probe),
65 DEVMETHOD(device_attach, inphy_attach),
66 DEVMETHOD(device_detach, mii_phy_detach),
67 DEVMETHOD(device_shutdown, bus_generic_shutdown),
71 static devclass_t inphy_devclass;
73 static driver_t inphy_driver = {
76 sizeof(struct mii_softc)
79 DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, 0, 0);
81 static int inphy_service(struct mii_softc *, struct mii_data *, int);
82 static void inphy_status(struct mii_softc *);
83 static void inphy_reset(struct mii_softc *);
85 static const struct mii_phydesc inphys[] = {
86 MII_PHY_DESC(xxINTEL, I82553),
87 MII_PHY_DESC(yyINTEL, I82553),
88 MII_PHY_DESC(yyINTEL, I82555),
89 MII_PHY_DESC(yyINTEL, I82562EM),
90 MII_PHY_DESC(yyINTEL, I82562ET),
94 static const struct mii_phy_funcs inphy_funcs = {
101 inphy_probe(device_t dev)
104 return (mii_phy_dev_probe(dev, inphys, BUS_PROBE_DEFAULT));
108 inphy_attach(device_t dev)
111 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &inphy_funcs, 1);
116 inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
125 * If the interface is not up, don't do anything.
127 if ((if_getflags(mii->mii_ifp) & IFF_UP) == 0)
130 mii_phy_setmedia(sc);
134 if (mii_phy_tick(sc) == EJUSTRETURN)
139 /* Update the media status. */
142 /* Callback if something changed. */
143 mii_phy_update(sc, cmd);
148 inphy_status(struct mii_softc *sc)
150 struct mii_data *mii = sc->mii_pdata;
151 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
154 mii->mii_media_status = IFM_AVALID;
155 mii->mii_media_active = IFM_ETHER;
157 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
158 if (bmsr & BMSR_LINK)
159 mii->mii_media_status |= IFM_ACTIVE;
161 bmcr = PHY_READ(sc, MII_BMCR);
162 if (bmcr & BMCR_ISO) {
163 mii->mii_media_active |= IFM_NONE;
164 mii->mii_media_status = 0;
168 if (bmcr & BMCR_LOOP)
169 mii->mii_media_active |= IFM_LOOP;
171 if (bmcr & BMCR_AUTOEN) {
172 if ((bmsr & BMSR_ACOMP) == 0) {
173 mii->mii_media_active |= IFM_NONE;
177 scr = PHY_READ(sc, MII_INPHY_SCR);
179 mii->mii_media_active |= IFM_100_TX;
181 mii->mii_media_active |= IFM_10_T;
183 mii->mii_media_active |=
184 IFM_FDX | mii_phy_flowstatus(sc);
186 mii->mii_media_active |= IFM_HDX;
188 mii->mii_media_active = ife->ifm_media;
192 inphy_reset(struct mii_softc *sc)
197 /* Ensure Bay flow control is disabled. */
198 PHY_WRITE(sc, MII_INPHY_SCR,
199 PHY_READ(sc, MII_INPHY_SCR) & ~SCR_FLOWCTL);