/* 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 */ /*- * 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. * 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. * * $FreeBSD: src/sys/dev/mii/lxtphy.c,v 1.1.2.1 2001/06/08 19:58:33 semenu Exp $ * $DragonFly: src/sys/dev/netif/mii_layer/lxtphy.c,v 1.5 2004/09/18 19:32:59 dillon Exp $ */ /* * 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 "mii.h" #include "miivar.h" #include "miidevs.h" #include "lxtphyreg.h" #include "miibus_if.h" static int lxtphy_probe (device_t); static int lxtphy_attach (device_t); static int lxtphy_detach (device_t); static device_method_t lxtphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, lxtphy_probe), DEVMETHOD(device_attach, lxtphy_attach), DEVMETHOD(device_detach, lxtphy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), { 0, 0 } }; static devclass_t lxtphy_devclass; static driver_t lxtphy_driver = { "lxtphy", lxtphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(lxtphy, miibus, lxtphy_driver, lxtphy_devclass, 0, 0); static int lxtphy_service (struct mii_softc *, struct mii_data *, int); static void lxtphy_status (struct mii_softc *); static void lxtphy_set_tp (struct mii_softc *); static void lxtphy_set_fx (struct mii_softc *); static int lxtphy_probe(dev) device_t dev; { struct mii_attach_args *ma; ma = device_get_ivars(dev); if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxLEVEL1 && MII_MODEL(ma->mii_id2) == MII_MODEL_xxLEVEL1_LXT970) { device_set_desc(dev, MII_STR_xxLEVEL1_LXT970); } else return (ENXIO); return (0); } static int lxtphy_attach(dev) device_t dev; { struct mii_softc *sc; struct mii_attach_args *ma; struct mii_data *mii; sc = device_get_softc(dev); ma = device_get_ivars(dev); mii_softc_init(sc); sc->mii_dev = device_get_parent(dev); mii = device_get_softc(sc->mii_dev); LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); sc->mii_inst = mii->mii_instance; sc->mii_phy = ma->mii_phyno; sc->mii_service = lxtphy_service; sc->mii_pdata = mii; sc->mii_flags |= MIIF_NOISOLATE; mii_phy_reset(sc); mii->mii_instance++; sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; device_printf(dev, " "); #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst), BMCR_ISO); ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst), BMCR_S100); printf("100baseFX, "); ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst), BMCR_S100|BMCR_FDX); printf("100baseFX-FDX, "); #undef ADD if (sc->mii_capabilities & BMSR_MEDIAMASK) mii_add_media(mii, sc->mii_capabilities, sc->mii_inst); printf("\n"); MIIBUS_MEDIAINIT(sc->mii_dev); return(0); } static int lxtphy_detach(dev) device_t dev; { struct mii_softc *sc; struct mii_data *mii; sc = device_get_softc(dev); mii = device_get_softc(device_get_parent(dev)); sc->mii_dev = NULL; LIST_REMOVE(sc, mii_list); return(0); } static int lxtphy_service(sc, mii, cmd) struct mii_softc *sc; struct mii_data *mii; int cmd; { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int reg; 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; 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); lxtphy_set_tp(sc); (void) mii_phy_auto(sc, 1); break; case IFM_100_T4: /* * XXX Not supported as a manual setting right now. */ return (EINVAL); case IFM_100_FX: lxtphy_set_fx(sc); default: /* * BMCR data is stored in the ifmedia entry. */ PHY_WRITE(sc, MII_ANAR, mii_anar(ife->ifm_media)); PHY_WRITE(sc, MII_BMCR, ife->ifm_data); } break; case MII_TICK: /* * If we're not currently selected, just return. */ if (IFM_INST(ife->ifm_media) != sc->mii_inst) return (0); /* * 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); /* * Check to see if we have link. If we do, we don't * need to restart the autonegotiation process. Read * the BMSR twice in case it's latched. */ reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); if (reg & BMSR_LINK) return (0); /* * Only retry autonegotiation every 5 seconds. */ if (++sc->mii_ticks != 5) return (0); sc->mii_ticks = 0; mii_phy_reset(sc); if (mii_phy_auto(sc, 0) == EJUSTRETURN) return (0); break; } /* Update the media status. */ lxtphy_status(sc); /* Callback if something changed. */ if (sc->mii_active != mii->mii_media_active || cmd == MII_MEDIACHG) { MIIBUS_STATCHG(sc->mii_dev); sc->mii_active = mii->mii_media_active; } return (0); } static void lxtphy_status(sc) 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; } static void lxtphy_set_tp(sc) 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(sc) struct mii_softc *sc; { int cfg; cfg = PHY_READ(sc, MII_LXTPHY_CONFIG); cfg |= CONFIG_100BASEFX; PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg); }