/*- * SPDX-License-Identifier: BSD-2-Clause * * 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. * * 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. * * from: NetBSD: bmtphy.c,v 1.8 2002/07/03 06:25:50 simonb Exp * */ #include <sys/cdefs.h> /* * 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 <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/bmtphyreg.h> #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), DEVMETHOD_END }; static driver_t bmtphy_driver = { "bmtphy", bmtphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(bmtphy, miibus, bmtphy_driver, 0, 0); static int bmtphy_service(struct mii_softc *, struct mii_data *, int); static void bmtphy_status(struct mii_softc *); static void bmtphy_reset(struct mii_softc *); static const struct mii_phydesc bmtphys_dp[] = { MII_PHY_DESC(xxBROADCOM, BCM4401), MII_PHY_DESC(xxBROADCOM, BCM5201), MII_PHY_DESC(xxBROADCOM, BCM5214), MII_PHY_DESC(xxBROADCOM, BCM5221), MII_PHY_DESC(xxBROADCOM, BCM5222), MII_PHY_END }; static const struct mii_phydesc bmtphys_lp[] = { MII_PHY_DESC(xxBROADCOM, 3C905B), MII_PHY_DESC(xxBROADCOM, 3C905C), MII_PHY_END }; static const struct mii_phy_funcs bmtphy_funcs = { bmtphy_service, bmtphy_status, bmtphy_reset }; static int bmtphy_probe(device_t dev) { int rval; /* Let exphy(4) take precedence for these. */ rval = mii_phy_dev_probe(dev, bmtphys_lp, BUS_PROBE_LOW_PRIORITY); #ifndef __HAIKU__ if (rval <= 0) return (rval); #else /* __HAIKU__ */ /* our BUS_PROBE_* constants are > 0 since errors are < 0 */ if (rval > 0) return (rval); #endif return (mii_phy_dev_probe(dev, bmtphys_dp, BUS_PROBE_DEFAULT)); } static int bmtphy_attach(device_t dev) { mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &bmtphy_funcs, 1); return (0); } static int bmtphy_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 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); 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; } aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR); 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 | mii_phy_flowstatus(sc); else mii->mii_media_active |= IFM_HDX; } else mii->mii_media_active = ife->ifm_media; } static void bmtphy_reset(struct mii_softc *sc) { u_int16_t data; mii_phy_reset(sc); if (sc->mii_mpd_model == MII_MODEL_xxBROADCOM_BCM5221) { /* Enable shadow register mode. */ data = PHY_READ(sc, 0x1f); PHY_WRITE(sc, 0x1f, data | 0x0080); /* Enable APD (Auto PowerDetect). */ data = PHY_READ(sc, MII_BMTPHY_AUX2); PHY_WRITE(sc, MII_BMTPHY_AUX2, data | 0x0020); /* Enable clocks across APD for Auto-MDIX functionality. */ data = PHY_READ(sc, MII_BMTPHY_INTR); PHY_WRITE(sc, MII_BMTPHY_INTR, data | 0x0004); /* Disable shadow register mode. */ data = PHY_READ(sc, 0x1f); PHY_WRITE(sc, 0x1f, data & ~0x0080); } }
