/* $OpenBSD: exphy.c,v 1.6 1999/12/07 22:01:28 jason Exp $ */ /* $NetBSD: exphy.c,v 1.15.6.1 1999/04/23 15:39:33 perry Exp $ */ /*- * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center, and by Frank van der Linden. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1997 Manuel Bouyer. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Manuel Bouyer. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * driver for 3Com internal PHYs */ #include #include #include #include #include #include #include #include #include #include #include int exphymatch __P((struct device *, void *, void *)); void exphyattach __P((struct device *, struct device *, void *)); struct cfattach exphy_ca = { sizeof(struct mii_softc), exphymatch, exphyattach }; struct cfdriver exphy_cd = { NULL, "exphy", DV_DULL }; int exphy_service __P((struct mii_softc *, struct mii_data *, int)); void exphy_reset __P((struct mii_softc *)); int exphymatch(parent, match, aux) struct device *parent; void *match; void *aux; { struct mii_attach_args *ma = aux; /* * Argh, 3Com PHY reports oui == 0 model == 0! */ if (MII_OUI(ma->mii_id1, ma->mii_id2) != 0 && MII_MODEL(ma->mii_id2) != 0) return (0); /* * Make sure the parent is an `xl'. */ if (strcmp(parent->dv_cfdata->cf_driver->cd_name, "xl") != 0) return (0); return (10); } void exphyattach(parent, self, aux) struct device *parent, *self; void *aux; { struct mii_softc *sc = (struct mii_softc *)self; struct mii_attach_args *ma = aux; struct mii_data *mii = ma->mii_data; printf(": 3Com internal media interface\n"); sc->mii_inst = mii->mii_instance; sc->mii_phy = ma->mii_phyno; sc->mii_service = exphy_service; sc->mii_pdata = mii; /* * The 3Com PHY can never be isolated, so never allow non-zero * instances! */ if (mii->mii_instance != 0) { printf("%s: ignoring this PHY, non-zero instance\n", sc->mii_dev.dv_xname); return; } sc->mii_flags |= MIIF_NOISOLATE; exphy_reset(sc); sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; if (sc->mii_capabilities & BMSR_MEDIAMASK) mii_add_media(sc); } int exphy_service(sc, mii, cmd) struct mii_softc *sc; struct mii_data *mii; int cmd; { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; /* * We can't isolate the 3Com PHY, so it has to be the only one! */ if (IFM_INST(ife->ifm_media) != sc->mii_inst) panic("exphy_service: can't isolate 3Com PHY"); switch (cmd) { case MII_POLLSTAT: break; case MII_MEDIACHG: /* * If the interface is not up, don't do anything. */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) break; switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: /* * If we're already in auto mode, just return. */ if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) return (0); (void) mii_phy_auto(sc, 1); break; default: mii_phy_setmedia(sc); } break; case MII_TICK: /* * Only used for autonegotiation. */ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) return (0); /* * Is the interface even up? */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) return (0); /* * The 3Com PHY's autonegotiation doesn't need to be * kicked; it continues in the background. */ break; case MII_DOWN: mii_phy_down(sc); return (0); } /* Update the media status. */ ukphy_status(sc); /* Callback if something changed. */ if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) { (*mii->mii_statchg)(sc->mii_dev.dv_parent); sc->mii_active = mii->mii_media_active; } return (0); } void exphy_reset(sc) struct mii_softc *sc; { mii_phy_reset(sc); /* * XXX 3Com PHY doesn't set the BMCR properly after * XXX reset, which breaks autonegotiation. */ PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_AUTOEN|BMCR_FDX); }