/*- * Copyright (c) 2001 Jonathan Lemon * 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. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * $FreeBSD$ */ /* * driver for Intel 82553 and 82555 PHYs */ #include #include #include #include #include #include #include #include #include #include #include #include #include "miibus_if.h" static int inphy_probe(device_t dev); static int inphy_attach(device_t dev); static int inphy_detach(device_t dev); static device_method_t inphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, inphy_probe), DEVMETHOD(device_attach, inphy_attach), DEVMETHOD(device_detach, inphy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), { 0, 0 } }; static devclass_t inphy_devclass; static driver_t inphy_driver = { "inphy", inphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, 0, 0); int inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd); void inphy_status(struct mii_softc *sc); static int inphy_probe(device_t dev) { struct mii_attach_args *ma; device_t parent; ma = device_get_ivars(dev); parent = device_get_parent(device_get_parent(dev)); /* Intel 82553 A/B steppings */ if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxINTEL && MII_MODEL(ma->mii_id2) == MII_MODEL_xxINTEL_I82553AB) { device_set_desc(dev, MII_STR_xxINTEL_I82553AB); return (0); } if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL) { switch (MII_MODEL(ma->mii_id2)) { case MII_MODEL_INTEL_I82555: device_set_desc(dev, MII_STR_INTEL_I82555); return (0); case MII_MODEL_INTEL_I82553C: device_set_desc(dev, MII_STR_INTEL_I82553C); return (0); case MII_MODEL_INTEL_I82562EM: device_set_desc(dev, MII_STR_INTEL_I82562EM); return (0); case MII_MODEL_INTEL_I82562ET: device_set_desc(dev, MII_STR_INTEL_I82562ET); return (0); } } return (ENXIO); } static int inphy_attach(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); 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 = inphy_service; sc->mii_pdata = mii; mii->mii_instance++; #if 0 sc->mii_flags |= MIIF_NOISOLATE; #endif ifmedia_add(&mii->mii_media, IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst), BMCR_LOOP|BMCR_S100, NULL); mii_phy_reset(sc); sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; device_printf(dev, " "); if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) printf("no media present"); else mii_add_media(mii, sc->mii_capabilities, sc->mii_inst); printf("\n"); MIIBUS_MEDIAINIT(sc->mii_dev); return (0); } static int inphy_detach(device_t dev) { struct mii_softc *sc; struct mii_data *mii; sc = device_get_softc(dev); mii = device_get_softc(device_get_softc(dev)); mii_phy_auto_stop(sc); sc->mii_dev = NULL; LIST_REMOVE(sc, mii_list); return (0); } int inphy_service(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 (IFM_INST(ife->ifm_media) != sc->mii_inst) return (0); break; case MII_MEDIACHG: 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); (void) mii_phy_auto(sc, 0); break; case IFM_100_T4: /* * XXX Not supported as a manual setting right now. */ return (EINVAL); 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 (IFM_INST(ife->ifm_media) != sc->mii_inst) return (0); /* * Is the interface even up? */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) return (0); /* * Only used for autonegotiation. */ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) return (0); /* * check for link. * Read the status register twice; BMSR_LINK is latch-low. */ 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. */ inphy_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); } void inphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; int bmsr, bmcr, scr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); if (bmsr & BMSR_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) { if ((bmsr & BMSR_ACOMP) == 0) { mii->mii_media_active |= IFM_NONE; return; } scr = PHY_READ(sc, MII_INPHY_SCR); if (scr & SCR_S100) mii->mii_media_active |= IFM_100_TX; else mii->mii_media_active |= IFM_10_T; if (scr & SCR_FDX) mii->mii_media_active |= IFM_FDX; } else mii->mii_media_active |= mii_media_from_bmcr(bmcr); }