/* $OpenBSD: exphy.c,v 1.24 2022/04/06 18:59:29 naddy Exp $ */ /* $NetBSD: exphy.c,v 1.23 2000/02/02 23:34:56 thorpej 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. * * 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. * * 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 <sys/param.h> #include <sys/systm.h> #include <sys/device.h> #include <sys/socket.h> #include <net/if.h> #include <net/if_var.h> #include <net/if_media.h> #include <dev/mii/mii.h> #include <dev/mii/miivar.h> #include <dev/mii/miidevs.h> int exphymatch(struct device *, void *, void *); void exphyattach(struct device *, struct device *, void *); const struct cfattach exphy_ca = { sizeof(struct mii_softc), exphymatch, exphyattach, mii_phy_detach }; struct cfdriver exphy_cd = { NULL, "exphy", DV_DULL }; int exphy_service(struct mii_softc *, struct mii_data *, int); void exphy_reset(struct mii_softc *); const struct mii_phy_funcs exphy_funcs = { exphy_service, ukphy_status, exphy_reset, }; int exphymatch(struct device *parent, void *match, void *aux) { struct mii_attach_args *ma = aux; /* * Since 3com's PHY for some xl adapters is braindead and doesn't * report the proper OUI/MODEL information, we have this stupid * match function. */ if ((strcmp(parent->dv_cfdata->cf_driver->cd_name, "xl") == 0) && ((MII_OUI(ma->mii_id1, ma->mii_id2) == 0 && MII_MODEL(ma->mii_id2) == 0) || (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_3COM && MII_MODEL(ma->mii_id2) == 0))) return (10); return (0); } void exphyattach(struct device *parent, struct device *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_funcs = &exphy_funcs; sc->mii_pdata = mii; sc->mii_flags = ma->mii_flags; sc->mii_flags |= MIIF_NOISOLATE; /* * 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; } PHY_RESET(sc); sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; if (sc->mii_capabilities & BMSR_MEDIAMASK) mii_phy_add_media(sc); } int exphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) return (ENXIO); /* * 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; mii_phy_setmedia(sc); break; case MII_TICK: if (mii_phy_tick(sc) == EJUSTRETURN) return (0); break; case MII_DOWN: mii_phy_down(sc); return (0); } /* Update the media status. */ mii_phy_status(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } void exphy_reset(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); }
