/* $OpenBSD: tlphy.c,v 1.20 2010/07/23 07:47:13 jsg Exp $ */ /* $NetBSD: tlphy.c,v 1.26 2000/07/04 03:29:00 thorpej Exp $ */ /*- * Copyright (c) 1998, 1999, 2000 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. * * 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 Texas Instruments's ThunderLAN PHYs */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* ThunderLAN PHY can only be on a ThunderLAN */ #include struct tlphy_softc { struct mii_softc sc_mii; /* generic PHY */ int sc_tlphycap; int sc_need_acomp; }; struct cfdriver tlphy_cd = { NULL, "tlphy", DV_DULL }; int tlphymatch(struct device *, void *, void *); void tlphyattach(struct device *, struct device *, void *); struct cfattach tlphy_ca = { sizeof(struct tlphy_softc), tlphymatch, tlphyattach, mii_phy_detach, mii_phy_activate }; int tlphy_service(struct mii_softc *, struct mii_data *, int); int tlphy_mii_phy_auto(struct tlphy_softc *, int); void tlphy_acomp(struct tlphy_softc *); void tlphy_status(struct mii_softc *); const struct mii_phy_funcs tlphy_funcs = { tlphy_service, tlphy_status, mii_phy_reset, }; static const struct mii_phydesc tlphys[] = { { MII_OUI_xxTI, MII_MODEL_xxTI_TLAN10T, MII_STR_xxTI_TLAN10T }, { 0, 0, NULL }, }; int tlphymatch(struct device *parent, void *match, void *aux) { struct mii_attach_args *ma = aux; if (mii_phy_match(ma, tlphys) != NULL) return (10); return (0); } void tlphyattach(struct device *parent, struct device *self, void *aux) { struct tlphy_softc *sc = (struct tlphy_softc *)self; struct tl_softc *tlsc = (struct tl_softc *)self->dv_parent; struct mii_attach_args *ma = aux; struct mii_data *mii = ma->mii_data; const struct mii_phydesc *mpd; mpd = mii_phy_match(ma, tlphys); printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); sc->sc_mii.mii_inst = mii->mii_instance; sc->sc_mii.mii_phy = ma->mii_phyno; sc->sc_mii.mii_funcs = &tlphy_funcs; sc->sc_mii.mii_pdata = mii; sc->sc_mii.mii_flags = ma->mii_flags; sc->sc_mii.mii_flags &= ~MIIF_NOISOLATE; PHY_RESET(&sc->sc_mii); sc->sc_mii.mii_flags |= MIIF_NOISOLATE; /* * Note that if we're on a device that also supports 100baseTX, * we are not going to want to use the built-in 10baseT port, * since there will be another PHY on the MII wired up to the * UTP connector. The parent indicates this to us by specifying * the TLPHY_MEDIA_NO_10_T bit. */ sc->sc_tlphycap = tlsc->tl_product->tp_tlphymedia; if ((sc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0) sc->sc_mii.mii_capabilities = PHY_READ(&sc->sc_mii, MII_BMSR) & ma->mii_capmask; else sc->sc_mii.mii_capabilities = 0; if (sc->sc_tlphycap & TLPHY_MEDIA_10_2) ifmedia_add(&mii->mii_media, IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0, sc->sc_mii.mii_inst), 0, NULL); if (sc->sc_tlphycap & TLPHY_MEDIA_10_5) ifmedia_add(&mii->mii_media, IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, sc->sc_mii.mii_inst), 0, NULL); if (sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) mii_phy_add_media(&sc->sc_mii); } int tlphy_service(struct mii_softc *self, struct mii_data *mii, int cmd) { struct tlphy_softc *sc = (struct tlphy_softc *)self; struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int reg; if ((sc->sc_mii.mii_dev.dv_flags & DVF_ACTIVE) == 0) return (ENXIO); if ((sc->sc_mii.mii_flags & MIIF_DOINGAUTO) == 0 && sc->sc_need_acomp) tlphy_acomp(sc); switch (cmd) { case MII_POLLSTAT: /* * If we're not polling our PHY instance, just return. */ if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) return (0); break; case MII_MEDIACHG: /* * If the media indicates a different PHY instance, * isolate ourselves. */ if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) { reg = PHY_READ(&sc->sc_mii, MII_BMCR); PHY_WRITE(&sc->sc_mii, MII_BMCR, reg | BMCR_ISO); return (0); } /* * 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: /* * The ThunderLAN PHY doesn't self-configure after * an autonegotiation cycle, so there's no such * thing as "already in auto mode". */ (void) tlphy_mii_phy_auto(sc, 1); break; case IFM_10_2: case IFM_10_5: PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL); delay(100000); break; default: PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0); delay(100000); mii_phy_setmedia(&sc->sc_mii); } break; case MII_TICK: /* * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?! */ /* * If we're not currently selected, just return. */ if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) return (0); if (mii_phy_tick(&sc->sc_mii) == EJUSTRETURN) return (0); break; case MII_DOWN: mii_phy_down(&sc->sc_mii); return (0); } /* Update the media status. */ mii_phy_status(&sc->sc_mii); /* Callback if something changed. */ mii_phy_update(&sc->sc_mii, cmd); return (0); } void tlphy_status(struct mii_softc *physc) { struct tlphy_softc *sc = (void *) physc; struct mii_data *mii = sc->sc_mii.mii_pdata; int bmsr, bmcr, tlctrl; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmcr = PHY_READ(&sc->sc_mii, MII_BMCR); if (bmcr & BMCR_ISO) { mii->mii_media_active |= IFM_NONE; mii->mii_media_status = 0; return; } tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL); if (tlctrl & CTRL_AUISEL) { mii->mii_media_status = 0; mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media; return; } bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) | PHY_READ(&sc->sc_mii, MII_BMSR); if (bmsr & BMSR_LINK) mii->mii_media_status |= IFM_ACTIVE; if (bmcr & BMCR_LOOP) mii->mii_media_active |= IFM_LOOP; /* * Grr, braindead ThunderLAN PHY doesn't have any way to * tell which media is actually active. (Note it also * doesn't self-configure after autonegotiation.) We * just have to report what's in the BMCR. */ if (bmcr & BMCR_FDX) mii->mii_media_active |= IFM_FDX; else mii->mii_media_active |= IFM_HDX; mii->mii_media_active |= IFM_10_T; } int tlphy_mii_phy_auto(struct tlphy_softc *sc, int waitfor) { int error; switch ((error = mii_phy_auto(&sc->sc_mii, waitfor))) { case EIO: /* * Just assume we're not in full-duplex mode. * XXX Check link and try AUI/BNC? */ PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); break; case EJUSTRETURN: /* Flag that we need to program when it completes. */ sc->sc_need_acomp = 1; break; default: tlphy_acomp(sc); } return (error); } void tlphy_acomp(struct tlphy_softc *sc) { int aner, anlpar; sc->sc_need_acomp = 0; /* * Grr, braindead ThunderLAN PHY doesn't self-configure * after autonegotiation. We have to do it ourselves * based on the link partner status. */ aner = PHY_READ(&sc->sc_mii, MII_ANER); if (aner & ANER_LPAN) { anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) & PHY_READ(&sc->sc_mii, MII_ANAR); if (anlpar & ANAR_10_FD) { PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX); return; } } PHY_WRITE(&sc->sc_mii, MII_BMCR, 0); }