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
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
35 * driver for Intel 82553 and 82555 PHYs
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/kernel.h>
41 #include <sys/module.h>
42 #include <sys/socket.h>
46 #include <net/if_media.h>
48 #include <dev/mii/mii.h>
49 #include <dev/mii/miivar.h>
52 #include <dev/mii/inphyreg.h>
54 #include "miibus_if.h"
56 static int inphy_probe(device_t dev);
57 static int inphy_attach(device_t dev);
59 static device_method_t inphy_methods[] = {
60 /* device interface */
61 DEVMETHOD(device_probe, inphy_probe),
62 DEVMETHOD(device_attach, inphy_attach),
63 DEVMETHOD(device_detach, mii_phy_detach),
64 DEVMETHOD(device_shutdown, bus_generic_shutdown),
68 static devclass_t inphy_devclass;
70 static driver_t inphy_driver = {
73 sizeof(struct mii_softc)
76 DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, 0, 0);
78 static int inphy_service(struct mii_softc *, struct mii_data *, int);
79 static void inphy_status(struct mii_softc *);
80 static void inphy_reset(struct mii_softc *);
82 static const struct mii_phydesc inphys[] = {
83 MII_PHY_DESC(INTEL, I82553C),
84 MII_PHY_DESC(INTEL, I82555),
85 MII_PHY_DESC(INTEL, I82562EM),
86 MII_PHY_DESC(INTEL, I82562ET),
87 MII_PHY_DESC(xxINTEL, I82553AB),
92 inphy_probe(device_t dev)
95 return (mii_phy_dev_probe(dev, inphys, BUS_PROBE_DEFAULT));
99 inphy_attach(device_t dev)
101 struct mii_softc *sc;
102 struct mii_attach_args *ma;
103 struct mii_data *mii;
105 sc = device_get_softc(dev);
106 ma = device_get_ivars(dev);
107 sc->mii_dev = device_get_parent(dev);
109 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
111 sc->mii_flags = miibus_get_flags(dev);
112 sc->mii_inst = mii->mii_instance++;
113 sc->mii_phy = ma->mii_phyno;
114 sc->mii_service = inphy_service;
117 sc->mii_flags |= MIIF_NOMANPAUSE;
119 ifmedia_add(&mii->mii_media,
120 IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
121 MII_MEDIA_100_TX, NULL);
125 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
126 device_printf(dev, " ");
127 mii_phy_add_media(sc);
130 MIIBUS_MEDIAINIT(sc->mii_dev);
136 inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
145 * If the interface is not up, don't do anything.
147 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
150 mii_phy_setmedia(sc);
154 if (mii_phy_tick(sc) == EJUSTRETURN)
159 /* Update the media status. */
162 /* Callback if something changed. */
163 mii_phy_update(sc, cmd);
168 inphy_status(struct mii_softc *sc)
170 struct mii_data *mii = sc->mii_pdata;
171 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
174 mii->mii_media_status = IFM_AVALID;
175 mii->mii_media_active = IFM_ETHER;
177 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
178 if (bmsr & BMSR_LINK)
179 mii->mii_media_status |= IFM_ACTIVE;
181 bmcr = PHY_READ(sc, MII_BMCR);
182 if (bmcr & BMCR_ISO) {
183 mii->mii_media_active |= IFM_NONE;
184 mii->mii_media_status = 0;
188 if (bmcr & BMCR_LOOP)
189 mii->mii_media_active |= IFM_LOOP;
191 if (bmcr & BMCR_AUTOEN) {
192 if ((bmsr & BMSR_ACOMP) == 0) {
193 mii->mii_media_active |= IFM_NONE;
197 scr = PHY_READ(sc, MII_INPHY_SCR);
199 mii->mii_media_active |= IFM_100_TX;
201 mii->mii_media_active |= IFM_10_T;
203 mii->mii_media_active |=
204 IFM_FDX | mii_phy_flowstatus(sc);
206 mii->mii_media_active |= IFM_HDX;
208 mii->mii_media_active = ife->ifm_media;
212 inphy_reset(struct mii_softc *sc)
217 /* Ensure Bay flow control is disabled. */
218 PHY_WRITE(sc, MII_INPHY_SCR,
219 PHY_READ(sc, MII_INPHY_SCR) & ~SCR_FLOWCTL);