2 * Copyright (c) 2001-2003, Shunsuke Akiyama <akiyama@FreeBSD.org>.
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/dev/mii/ruephy.c,v 1.1.4.1 2003/07/30 13:57:35 akiyama Exp $
27 * $DragonFly: src/sys/dev/netif/mii_layer/ruephy.c,v 1.1 2005/09/19 02:53:27 sephe Exp $
31 * driver for RealTek RTL8150 internal PHY
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/malloc.h>
38 #include <sys/socket.h>
42 #include <net/if_media.h>
44 #include <dev/netif/mii_layer/mii.h>
45 #include <dev/netif/mii_layer/miivar.h>
46 #include <dev/netif/mii_layer/ruephyreg.h>
48 #include "miibus_if.h"
50 static int ruephy_probe(device_t);
51 static int ruephy_attach(device_t);
52 static int ruephy_detach(device_t);
54 static device_method_t ruephy_methods[] = {
55 /* device interface */
56 DEVMETHOD(device_probe, ruephy_probe),
57 DEVMETHOD(device_attach, ruephy_attach),
58 DEVMETHOD(device_detach, ruephy_detach),
59 DEVMETHOD(device_shutdown, bus_generic_shutdown),
63 static devclass_t ruephy_devclass;
65 static driver_t ruephy_driver = {
68 sizeof(struct mii_softc)
71 DRIVER_MODULE(ruephy, miibus, ruephy_driver, ruephy_devclass, 0, 0);
73 static int ruephy_service(struct mii_softc *, struct mii_data *, int);
74 static void ruephy_reset(struct mii_softc *);
75 static void ruephy_status(struct mii_softc *);
78 ruephy_probe(device_t dev)
80 struct mii_attach_args *ma;
83 ma = device_get_ivars(dev);
84 parent = device_get_parent(device_get_parent(dev));
87 * RealTek RTL8150 PHY doesn't have vendor/device ID registers:
88 * the rue driver fakes up a return value of all zeros.
90 if (MII_OUI(ma->mii_id1, ma->mii_id2) != 0 ||
91 MII_MODEL(ma->mii_id2) != 0)
95 * Make sure the parent is an 'rue'.
97 if (strcmp(device_get_name(parent), "rue") != 0)
100 device_set_desc(dev, "RealTek RTL8150 internal media interface");
106 ruephy_attach(device_t dev)
108 struct mii_softc *sc;
109 struct mii_attach_args *ma;
110 struct mii_data *mii;
112 sc = device_get_softc(dev);
113 ma = device_get_ivars(dev);
115 sc->mii_dev = device_get_parent(dev);
116 mii = device_get_softc(sc->mii_dev);
119 * The RealTek PHY can never be isolated, so never allow non-zero
122 if (mii->mii_instance != 0) {
123 device_printf(dev, "ignoring this PHY, non-zero instance\n");
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 = ruephy_service;
135 sc->mii_flags |= MIIF_NOISOLATE;
137 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
141 sc->mii_capabilities =
142 PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
143 device_printf(dev, " ");
144 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
145 printf("no media present");
147 mii_add_media(mii, sc->mii_capabilities, sc->mii_inst);
152 MIIBUS_MEDIAINIT(sc->mii_dev);
157 ruephy_detach(device_t dev)
159 struct mii_softc *sc;
160 struct mii_data *mii;
162 sc = device_get_softc(dev);
163 mii = device_get_softc(device_get_softc(dev));
164 mii_phy_auto_stop(sc);
166 LIST_REMOVE(sc, mii_list);
172 ruephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
174 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
178 * We can't isolate the RealTek RTL8150 PHY,
179 * so it has to be the only one!
181 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
182 panic("ruephy_service: can't isolate RealTek RTL8150 PHY");
190 * If the interface is not up, don't do anything.
192 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
195 switch (IFM_SUBTYPE(ife->ifm_media)) {
198 * If we're already in auto mode, just return.
200 if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
202 (void) mii_phy_auto(sc, 1);
206 * XXX Not supported as a manual setting right now.
211 * BMCR data is stored in the ifmedia entry.
213 PHY_WRITE(sc, MII_ANAR,
214 mii_anar(ife->ifm_media));
215 PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
221 * Is the interface even up?
223 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
227 * Only used for autonegotiation.
229 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
233 * Check to see if we have link. If we do, we don't
234 * need to restart the autonegotiation process. Read
235 * the MSR twice in case it's latched.
237 reg = PHY_READ(sc, RUEPHY_MII_MSR) |
238 PHY_READ(sc, RUEPHY_MII_MSR);
239 if (reg & RUEPHY_MSR_LINK)
243 * Only retry autonegotiation every 5 seconds.
245 if (++sc->mii_ticks != 5)
250 if (mii_phy_auto(sc, 0) == EJUSTRETURN)
255 /* Update the media status. */
258 /* Callback if something changed. */
259 if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
260 MIIBUS_STATCHG(sc->mii_dev);
261 sc->mii_active = mii->mii_media_active;
268 ruephy_reset(struct mii_softc *sc)
274 * XXX RealTek RTL8150 PHY doesn't set the BMCR properly after
275 * XXX reset, which breaks autonegotiation.
277 PHY_WRITE(sc, MII_BMCR, (BMCR_S100 | BMCR_AUTOEN | BMCR_FDX));
281 ruephy_status(struct mii_softc *phy)
283 struct mii_data *mii = phy->mii_pdata;
286 mii->mii_media_status = IFM_AVALID;
287 mii->mii_media_active = IFM_ETHER;
289 msr = PHY_READ(phy, RUEPHY_MII_MSR) | PHY_READ(phy, RUEPHY_MII_MSR);
290 if (msr & RUEPHY_MSR_LINK)
291 mii->mii_media_status |= IFM_ACTIVE;
293 bmcr = PHY_READ(phy, MII_BMCR);
294 if (bmcr & BMCR_ISO) {
295 mii->mii_media_active |= IFM_NONE;
296 mii->mii_media_status = 0;
300 bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR);
302 if (bmcr & BMCR_AUTOEN) {
303 if ((bmsr & BMSR_ACOMP) == 0) {
304 /* Erg, still trying, I guess... */
305 mii->mii_media_active |= IFM_NONE;
309 if (msr & RUEPHY_MSR_SPEED100)
310 mii->mii_media_active |= IFM_100_TX;
312 mii->mii_media_active |= IFM_10_T;
314 if (msr & RUEPHY_MSR_DUPLEX)
315 mii->mii_media_active |= IFM_FDX;
317 mii->mii_media_active = mii_media_from_bmcr(bmcr);