/* $NetBSD: acphy.c,v 1.15 2005/12/11 12:22:42 christos Exp $ */ /* * Copyright 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Jason R. Thorpe for Wasabi Systems, Inc. * * 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 for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC * 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 the Altima AC101 PHY. */ #include __KERNEL_RCSID(0, "$NetBSD: acphy.c,v 1.15 2005/12/11 12:22:42 christos Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include static int acphymatch(struct device *, struct cfdata *, void *); static void acphyattach(struct device *, struct device *, void *); CFATTACH_DECL(acphy, sizeof(struct mii_softc), acphymatch, acphyattach, mii_phy_detach, mii_phy_activate); static int acphy_service(struct mii_softc *, struct mii_data *, int); static void acphy_status(struct mii_softc *); static const struct mii_phy_funcs acphy_funcs = { acphy_service, acphy_status, mii_phy_reset, }; static const struct mii_phydesc acphys[] = { { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_AC101, MII_STR_ALTIMA_AC101 }, { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_AC101L, MII_STR_ALTIMA_AC101L }, { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_Am79C874, MII_STR_ALTIMA_Am79C874 }, { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_Am79C875, MII_STR_ALTIMA_Am79C875 }, /* XXX This is reported to work, but it's not from any data sheet. */ { MII_OUI_ALTIMA, MII_MODEL_ALTIMA_ACXXX, MII_STR_ALTIMA_ACXXX }, { 0, 0, NULL }, }; static int acphymatch(struct device *parent, struct cfdata *match, void *aux) { struct mii_attach_args *ma = aux; if (mii_phy_match(ma, acphys) != NULL) return (10); return (0); } static void acphyattach(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, acphys); aprint_naive(": Media interface\n"); aprint_normal(": %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 = &acphy_funcs; sc->mii_pdata = mii; sc->mii_flags = ma->mii_flags; sc->mii_anegticks = 5; PHY_RESET(sc); /* * XXX Check MCR_FX_SEL to set MIIF_HAVE_FIBER? */ sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; aprint_normal("%s: ", sc->mii_dev.dv_xname); #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) if (sc->mii_flags & MIIF_HAVEFIBER) { ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst), MII_MEDIA_100_TX); aprint_normal("100baseFX, "); ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst), MII_MEDIA_100_TX); aprint_normal("100baseFX-FDX, "); } #undef ADD if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) aprint_error("no media present"); else mii_phy_add_media(sc); aprint_normal("\n"); } static int acphy_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 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; 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); } static void acphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int bmsr, bmcr, dr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); dr = PHY_READ(sc, MII_ACPHY_DR); 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) { /* * The media status bits are only valid if autonegotiation * has completed (or it's disabled). */ if ((bmsr & BMSR_ACOMP) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } if (dr & DR_SPEED) mii->mii_media_active |= IFM_100_TX; else mii->mii_media_active |= IFM_10_T; if (dr & DR_DPLX) mii->mii_media_active |= IFM_FDX; } else mii->mii_media_active = ife->ifm_media; }