/* OpenBSD: lxtphy.c,v 1.5 2000/08/26 20:04:17 nate Exp */ /* NetBSD: lxtphy.c,v 1.19 2000/02/02 23:34:57 thorpej Exp */ /*- * SPDX-License-Identifier: BSD-2-Clause * * 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. * * 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. */ #include /* * 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 "miidevs.h" #include #include "miibus_if.h" static int lxtphy_probe(device_t); static int lxtphy_attach(device_t); static device_method_t lxtphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, lxtphy_probe), DEVMETHOD(device_attach, lxtphy_attach), DEVMETHOD(device_detach, mii_phy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD_END }; static driver_t lxtphy_driver = { "lxtphy", lxtphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(lxtphy, miibus, lxtphy_driver, 0, 0); static int lxtphy_service(struct mii_softc *, struct mii_data *, int); static void lxtphy_status(struct mii_softc *); static void lxtphy_reset(struct mii_softc *); static void lxtphy_set_tp(struct mii_softc *); static void lxtphy_set_fx(struct mii_softc *); static const struct mii_phydesc lxtphys[] = { MII_PHY_DESC(xxLEVEL1, LXT970), MII_PHY_END }; static const struct mii_phy_funcs lxtphy_funcs = { lxtphy_service, lxtphy_status, lxtphy_reset }; static int lxtphy_probe(device_t dev) { return (mii_phy_dev_probe(dev, lxtphys, BUS_PROBE_DEFAULT)); } static int lxtphy_attach(device_t dev) { struct mii_softc *sc; sc = device_get_softc(dev); mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &lxtphy_funcs, 0); PHY_RESET(sc); sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask; device_printf(dev, " "); #define ADD(m) ifmedia_add(&sc->mii_pdata->mii_media, (m), 0, NULL) ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst)); printf("100baseFX, "); ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst)); printf("100baseFX-FDX, "); #undef ADD mii_phy_add_media(sc); printf("\n"); MIIBUS_MEDIAINIT(sc->mii_dev); return (0); } static int lxtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; switch (cmd) { case MII_POLLSTAT: break; case MII_MEDIACHG: 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 (mii_phy_tick(sc) == EJUSTRETURN) return (0); break; } /* Update the media status. */ PHY_STATUS(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } static 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 * doesn'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 | mii_phy_flowstatus(sc); else mii->mii_media_active |= IFM_HDX; } else mii->mii_media_active = ife->ifm_media; } static 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); }