/* $NetBSD: acphy.c,v 1.16 2006/03/29 07:05:24 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/acphy.c,v 1.2.2.2 2002/10/21 21:20:19 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 Altima AC101 10/100 PHY */ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/socket.h> #include <sys/errno.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 "acphyreg.h" #include "miibus_if.h" static int acphy_probe (device_t); static int acphy_attach (device_t); static device_method_t acphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, acphy_probe), DEVMETHOD(device_attach, acphy_attach), DEVMETHOD(device_detach, ukphy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD_END }; static const struct mii_phydesc acphys[] = { MII_PHYDESC(xxALTIMA, AC101), MII_PHYDESC(xxALTIMA, AC101L), MII_PHYDESC(xxALTIMA, AC_UNKNOWN), MII_PHYDESC(xxALTIMA, Am79C875), MII_PHYDESC_NULL }; static devclass_t acphy_devclass; static driver_t acphy_driver = { "acphy", acphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(acphy, miibus, acphy_driver, acphy_devclass, NULL, NULL); static int acphy_service(struct mii_softc *, struct mii_data *, int); static void acphy_reset(struct mii_softc *); static void acphy_status(struct mii_softc *); static int acphy_probe(device_t dev) { struct mii_attach_args *ma = device_get_ivars(dev); const struct mii_phydesc *mpd; mpd = mii_phy_match(ma, acphys); if (mpd != NULL) { device_set_desc(dev, mpd->mpd_name); return (0); } return (ENXIO); } static int acphy_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); LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); sc->mii_inst = mii->mii_instance; sc->mii_service = acphy_service; sc->mii_reset = acphy_reset; sc->mii_pdata = mii; sc->mii_flags |= MIIF_NOISOLATE; acphy_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) mii_phy_add_media(sc); else kprintf("no media present"); kprintf("\n"); MIIBUS_MEDIAINIT(sc->mii_dev); return (0); } 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; /* * If we're not selected, then do nothing, just isolate and power * down, if changing media. */ if (IFM_INST(ife->ifm_media) != sc->mii_inst) { if (cmd == MII_MEDIACHG) { reg = PHY_READ(sc, MII_BMCR); PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO | BMCR_PDOWN); } return (0); } 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; 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; /* * This PHY's autonegotiation doesn't need to be kicked. */ break; } /* Update the media status. */ acphy_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; 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) { int diag; if ((bmsr & BMSR_ACOMP) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } diag = PHY_READ(sc, MII_ACPHY_DIAG); if (diag & AC_DIAG_SPEED) mii->mii_media_active |= IFM_100_TX; else mii->mii_media_active |= IFM_10_T; if (diag & AC_DIAG_DUPLEX) mii->mii_media_active |= IFM_FDX; } else { mii->mii_media_active = ife->ifm_media; } } static void acphy_reset(struct mii_softc *sc) { mii_phy_reset(sc); PHY_WRITE(sc, MII_ACPHY_INT, 0); }
