/* $NetBSD: exphy.c,v 1.16 1999/04/23 04:24:32 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, and by Frank van der Linden. * * 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/exphy.c,v 1.4.2.2 2002/11/08 21:53:49 semenu 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 3Com internal PHYs */ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/socket.h> #include <sys/module.h> #include <sys/bus.h> #include <net/if.h> #include <net/if_var.h> #include <net/if_media.h> #include "mii.h" #include "miivar.h" #include "miidevs.h" #include "miibus_if.h" static int exphy_probe (device_t); static int exphy_attach (device_t); static device_method_t exphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, exphy_probe), DEVMETHOD(device_attach, exphy_attach), DEVMETHOD(device_detach, ukphy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD_END }; static devclass_t exphy_devclass; static driver_t exphy_driver = { "xlphy", exphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(xlphy, miibus, exphy_driver, exphy_devclass, NULL, NULL); int exphy_service (struct mii_softc *, struct mii_data *, int); void exphy_reset (struct mii_softc *); static int exphy_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)); /* * Argh, 3Com PHY reports oui == 0 model == 0! */ if ((MII_OUI(ma->mii_id1, ma->mii_id2) != 0 || MII_MODEL(ma->mii_id2) != 0) && (MII_OUI(ma->mii_id1, ma->mii_id2) != MII_OUI_BROADCOM || MII_MODEL(ma->mii_id2) != MII_MODEL_BROADCOM_3C905C)) return (ENXIO); /* * Make sure the parent is an `xl'. */ if (strcmp(device_get_name(parent), "xl") != 0) return (ENXIO); if (MII_OUI(ma->mii_id1, ma->mii_id2) == 0) device_set_desc(dev, "3Com internal media interface"); else device_set_desc(dev, MII_STR_BROADCOM_3C905C); return (0); } static int exphy_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); mii_softc_init(sc, ma); sc->mii_dev = device_get_parent(dev); mii = device_get_softc(sc->mii_dev); /* * The 3Com PHY can never be isolated, so never allow non-zero * instances! */ if (mii->mii_instance != 0) { device_printf(dev, "ignoring this PHY, non-zero instance\n"); return(ENXIO); } LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); sc->mii_inst = mii->mii_instance; sc->mii_service = exphy_service; sc->mii_reset = exphy_reset; sc->mii_pdata = mii; mii->mii_instance++; sc->mii_flags |= MIIF_NOISOLATE; exphy_reset(sc); sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; device_printf(dev, " "); if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0) kprintf("no media present"); else mii_phy_add_media(sc); kprintf("\n"); MIIBUS_MEDIAINIT(sc->mii_dev); return(0); } int exphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; /* * We can't isolate the 3Com PHY, so it has to be the only one! */ KASSERT(IFM_INST(ife->ifm_media) == sc->mii_inst, ("exphy_service: can't isolate 3Com PHY")); switch (cmd) { case MII_POLLSTAT: break; case MII_MEDIACHG: /* * If the interface is not up, don't do anything. */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) break; if (IFM_SUBTYPE(ife->ifm_media) == IFM_100_T4) { /* * XXX Not supported as a manual setting right now. */ return (EINVAL); } mii_phy_set_media(sc); break; case MII_TICK: /* * 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) break; /* * The 3Com PHY's autonegotiation doesn't need to be * kicked; it continues in the background. */ break; } /* Update the media status. */ ukphy_status(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } void exphy_reset(struct mii_softc *sc) { mii_phy_reset(sc); /* * XXX 3Com PHY doesn't set the BMCR properly after * XXX reset, which breaks autonegotiation. */ PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_AUTOEN|BMCR_FDX); }
