/* $NetBSD: lxtphy.c,v 1.25 2001/08/25 18:04:01 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. * 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 Level One's LXT-970 ethernet 10/100 PHY * datasheet from www.level1.com */ #include #include #include #include #include #include #include #include #include #include #include #include #include int lxtphymatch(struct device *, struct cfdata *, void *); void lxtphyattach(struct device *, struct device *, void *); struct cfattach lxtphy_ca = { sizeof(struct mii_softc), lxtphymatch, lxtphyattach, mii_phy_detach, mii_phy_activate }; int lxtphy_service(struct mii_softc *, struct mii_data *, int); void lxtphy_status(struct mii_softc *); void lxtphy_reset(struct mii_softc *); static void lxtphy_set_tp(struct mii_softc *); static void lxtphy_set_fx(struct mii_softc *); const struct mii_phy_funcs lxtphy_funcs = { lxtphy_service, lxtphy_status, lxtphy_reset, }; const struct mii_phydesc lxtphys[] = { { MII_OUI_xxLEVEL1, MII_MODEL_xxLEVEL1_LXT970, MII_STR_xxLEVEL1_LXT970 }, { 0, 0, NULL }, }; int lxtphymatch(struct device *parent, struct cfdata *match, void *aux) { struct mii_attach_args *ma = aux; if (mii_phy_match(ma, lxtphys) != NULL) return (10); return (0); } void lxtphyattach(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; const struct mii_phydesc *mpd; mpd = mii_phy_match(ma, lxtphys); printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); sc->mii_inst = mii->mii_instance; sc->mii_phy = ma->mii_phyno; sc->mii_funcs = &lxtphy_funcs; sc->mii_pdata = mii; sc->mii_flags = mii->mii_flags | ma->mii_flags; sc->mii_anegticks = 5; PHY_RESET(sc); sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; printf("%s: ", sc->mii_dev.dv_xname); if (sc->mii_flags & MIIF_HAVEFIBER) { #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst), MII_MEDIA_100_TX); printf("100baseFX, "); ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst), MII_MEDIA_100_TX_FDX); printf("100baseFX-FDX, "); #undef ADD } if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) printf("no media present"); else mii_phy_add_media(sc); printf("\n"); } int lxtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int reg; if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) return (ENXIO); switch (cmd) { case MII_POLLSTAT: /* * If we're not polling our PHY instance, just return. */ if (IFM_INST(ife->ifm_media) != sc->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->mii_inst) { reg = PHY_READ(sc, MII_BMCR); PHY_WRITE(sc, 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; if (IFM_SUBTYPE(ife->ifm_media) == IFM_100_FX) lxtphy_set_fx(sc); else lxtphy_set_tp(sc); mii_phy_setmedia(sc); break; case MII_TICK: /* * If we're not currently selected, just return. */ if (IFM_INST(ife->ifm_media) != sc->mii_inst) return (0); 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 lxtphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int bmcr, bmsr, csr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; /* * Get link status from the CSR; we need to read the CSR * for media type anyhow, and the link status in the CSR * doens't latch, so fewer register reads are required. */ csr = PHY_READ(sc, MII_LXTPHY_CSR); if (csr & CSR_LINK) mii->mii_media_status |= IFM_ACTIVE; bmcr = PHY_READ(sc, MII_BMCR); if (bmcr & BMCR_ISO) { mii->mii_media_active |= IFM_NONE; mii->mii_media_status = 0; return; } if (bmcr & BMCR_LOOP) mii->mii_media_active |= IFM_LOOP; if (bmcr & BMCR_AUTOEN) { bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); if ((bmsr & BMSR_ACOMP) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } if (csr & CSR_SPEED) mii->mii_media_active |= IFM_100_TX; else mii->mii_media_active |= IFM_10_T; if (csr & CSR_DUPLEX) mii->mii_media_active |= IFM_FDX; } else mii->mii_media_active = ife->ifm_media; } void lxtphy_reset(struct mii_softc *sc) { mii_phy_reset(sc); PHY_WRITE(sc, MII_LXTPHY_IER, PHY_READ(sc, MII_LXTPHY_IER) & ~IER_INTEN); } static void lxtphy_set_tp(struct mii_softc *sc) { int cfg; cfg = PHY_READ(sc, MII_LXTPHY_CONFIG); cfg &= ~CONFIG_100BASEFX; PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg); } static void lxtphy_set_fx(struct mii_softc *sc) { int cfg; cfg = PHY_READ(sc, MII_LXTPHY_CONFIG); cfg |= CONFIG_100BASEFX; PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg); }