/*- * Copyright (c) 1998, 1999, 2000, 2001 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. * * from: NetBSD: bmtphy.c,v 1.8 2002/07/03 06:25:50 simonb Exp * */ #include __FBSDID("$FreeBSD$"); /* * Driver for the Broadcom BCM5201/BCM5202 "Mini-Theta" PHYs. This also * drives the PHY on the 3Com 3c905C. The 3c905C's PHY is described in * the 3c905C data sheet. */ #include #include #include #include #include #include #include #include #include #include #include "miidevs.h" #include #include "miibus_if.h" static int bmtphy_probe(device_t); static int bmtphy_attach(device_t); static device_method_t bmtphy_methods[] = { /* Device interface */ DEVMETHOD(device_probe, bmtphy_probe), DEVMETHOD(device_attach, bmtphy_attach), DEVMETHOD(device_detach, mii_phy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), { 0, 0 } }; static devclass_t bmtphy_devclass; static driver_t bmtphy_driver = { "bmtphy", bmtphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(bmtphy, miibus, bmtphy_driver, bmtphy_devclass, 0, 0); static int bmtphy_service(struct mii_softc *, struct mii_data *, int); static void bmtphy_status(struct mii_softc *); static int bmtphy_probe(device_t dev) { struct mii_attach_args *ma; int rval; ma = device_get_ivars(dev); rval = BUS_PROBE_DEFAULT; if (MII_OUI(ma->mii_id1, ma->mii_id2) != MII_OUI_BROADCOM) return (ENXIO); switch (MII_MODEL(ma->mii_id2)) { case MII_MODEL_BROADCOM_3C905B: device_set_desc(dev, MII_STR_BROADCOM_3C905B); rval = BUS_PROBE_LOW_PRIORITY; /* Let exphy take precedence. */ break; case MII_MODEL_BROADCOM_3C905C: device_set_desc(dev, MII_STR_BROADCOM_3C905C); rval = BUS_PROBE_LOW_PRIORITY; /* Let exphy take precedence. */ break; case MII_MODEL_BROADCOM_BCM5201: device_set_desc(dev, MII_STR_BROADCOM_BCM5201); break; case MII_MODEL_BROADCOM_BCM5221: device_set_desc(dev, MII_STR_BROADCOM_BCM5221); break; case MII_MODEL_BROADCOM_BCM4401: device_set_desc(dev, MII_STR_BROADCOM_BCM4401); break; default: return (ENXIO); } return (rval); } static int bmtphy_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 = bmtphy_service; sc->mii_pdata = mii; mii_phy_reset(sc); mii->mii_instance++; 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_phy_add_media(sc); printf("\n"); MIIBUS_MEDIAINIT(sc->mii_dev); return (0); } static int bmtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife; int reg; ife = mii->mii_media.ifm_cur; 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; } /* Update the media status. */ bmtphy_status(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } static void bmtphy_status(struct mii_softc *sc) { struct mii_data *mii; struct ifmedia_entry *ife; int bmsr, bmcr, aux_csr; mii = sc->mii_pdata; ife = mii->mii_media.ifm_cur; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR); 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 (aux_csr & AUX_CSR_SPEED) mii->mii_media_active |= IFM_100_TX; else mii->mii_media_active |= IFM_10_T; if (aux_csr & AUX_CSR_FDX) mii->mii_media_active |= IFM_FDX; } else mii->mii_media_active = ife->ifm_media; }