/* $NetBSD: icsphy.c,v 1.41 2006/11/16 21:24:07 christos Exp $ */ /*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 1998, 1999, 2000 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. * * 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. * * 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. */ #include <sys/cdefs.h> /* * driver for Integrated Circuit Systems' ICS1889-1893 ethernet 10/100 PHY * datasheet from www.icst.com */ #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/socket.h> #include <sys/bus.h> #include <net/if.h> #include <net/if_media.h> #include <dev/mii/mii.h> #include <dev/mii/miivar.h> #include "miidevs.h" #include <dev/mii/icsphyreg.h> #include "miibus_if.h" static int icsphy_probe(device_t dev); static int icsphy_attach(device_t dev); static device_method_t icsphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, icsphy_probe), DEVMETHOD(device_attach, icsphy_attach), DEVMETHOD(device_detach, mii_phy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD_END }; static driver_t icsphy_driver = { "icsphy", icsphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(icsphy, miibus, icsphy_driver, 0, 0); static int icsphy_service(struct mii_softc *, struct mii_data *, int); static void icsphy_status(struct mii_softc *); static void icsphy_reset(struct mii_softc *); static const struct mii_phydesc icsphys[] = { MII_PHY_DESC(ICS, 1889), MII_PHY_DESC(ICS, 1890), MII_PHY_DESC(ICS, 1892), MII_PHY_DESC(ICS, 1893), MII_PHY_DESC(ICS, 1893C), MII_PHY_END }; static const struct mii_phy_funcs icsphy_funcs = { icsphy_service, icsphy_status, icsphy_reset }; static int icsphy_probe(device_t dev) { return (mii_phy_dev_probe(dev, icsphys, BUS_PROBE_DEFAULT)); } static int icsphy_attach(device_t dev) { mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE, &icsphy_funcs, 1); return (0); } static int icsphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { switch (cmd) { case MII_POLLSTAT: break; case MII_MEDIACHG: mii_phy_setmedia(sc); break; case MII_TICK: if (mii_phy_tick(sc) == EJUSTRETURN) return (0); break; } /* Update the media status. */ PHY_STATUS(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } static void icsphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int bmcr, qpr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; /* * Don't get link from the BMSR. It's available in the QPR, * and we have to read it twice to unlatch it anyhow. This * gives us fewer register reads. */ qpr = PHY_READ(sc, MII_ICSPHY_QPR); /* unlatch */ qpr = PHY_READ(sc, MII_ICSPHY_QPR); /* real value */ if (qpr & QPR_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 ((qpr & QPR_ACOMP) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } if (qpr & QPR_SPEED) mii->mii_media_active |= IFM_100_TX; else mii->mii_media_active |= IFM_10_T; if (qpr & QPR_FDX) mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc); else mii->mii_media_active |= IFM_HDX; } else mii->mii_media_active = ife->ifm_media; } static void icsphy_reset(struct mii_softc *sc) { mii_phy_reset(sc); /* set powerdown feature */ switch (sc->mii_mpd_model) { case MII_MODEL_ICS_1890: case MII_MODEL_ICS_1893: PHY_WRITE(sc, MII_ICSPHY_ECR2, ECR2_100AUTOPWRDN); break; case MII_MODEL_ICS_1892: PHY_WRITE(sc, MII_ICSPHY_ECR2, ECR2_10AUTOPWRDN|ECR2_100AUTOPWRDN); break; default: /* 1889 have no ECR2 */ break; } /* * There is no description that the reset do auto-negotiation in the * data sheet. */ PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_STARTNEG|BMCR_FDX); }
