/*- * SPDX-License-Identifier: BSD-4-Clause * * Copyright (c) 2001 Wind River Systems * Copyright (c) 2001 * Bill Paul . All rights reserved. * 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 Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD * 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 /* * Driver for the National Semiconductor DP83861, DP83865 and DP83891 * 10/100/1000 PHYs. * Datasheet available at: http://www.national.com/ds/DP/DP83861.pdf * and at: http://www.national.com/ds/DP/DP83865.pdf * * The DP83891 is the older NS GigE PHY which isn't being sold * anymore. The DP83861 is its replacement, which is an 'enhanced' * firmware driven component. The major difference between the * two is that the DP83891 can't generate interrupts, while the * 83861 can (probably it wasn't originally designed to do this, but * it can now thanks to firmware updates). The DP83861 also allows * access to its internal RAM via indirect register access. The * DP83865 is an ultra low power version of the DP83861 and DP83891. */ #include #include #include #include #include #include #include #include #include #include #include "miidevs.h" #include #include "miibus_if.h" static int nsgphy_probe(device_t); static int nsgphy_attach(device_t); static device_method_t nsgphy_methods[] = { /* device interface */ DEVMETHOD(device_probe, nsgphy_probe), DEVMETHOD(device_attach, nsgphy_attach), DEVMETHOD(device_detach, mii_phy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD_END }; static driver_t nsgphy_driver = { "nsgphy", nsgphy_methods, sizeof(struct mii_softc) }; DRIVER_MODULE(nsgphy, miibus, nsgphy_driver, 0, 0); static int nsgphy_service(struct mii_softc *, struct mii_data *,int); static void nsgphy_status(struct mii_softc *); static const struct mii_phydesc nsgphys[] = { MII_PHY_DESC(xxNATSEMI, DP83861), MII_PHY_DESC(xxNATSEMI, DP83865), MII_PHY_DESC(xxNATSEMI, DP83891), MII_PHY_END }; static const struct mii_phy_funcs nsgphy_funcs = { nsgphy_service, nsgphy_status, mii_phy_reset }; static int nsgphy_probe(device_t dev) { return (mii_phy_dev_probe(dev, nsgphys, BUS_PROBE_DEFAULT)); } static int nsgphy_attach(device_t dev) { struct mii_softc *sc; sc = device_get_softc(dev); mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &nsgphy_funcs, 0); PHY_RESET(sc); /* * NB: the PHY has the 10BASE-T BMSR bits hard-wired to 0, * even though it supports 10BASE-T. */ sc->mii_capabilities = (PHY_READ(sc, MII_BMSR) | BMSR_10TFDX | BMSR_10THDX) & sc->mii_capmask; /* * Note that as documented manual 1000BASE-T modes of DP83865 only * work together with other National Semiconductor PHYs. */ if (sc->mii_capabilities & BMSR_EXTSTAT) sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); mii_phy_add_media(sc); printf("\n"); MIIBUS_MEDIAINIT(sc->mii_dev); return (0); } static int nsgphy_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 nsgphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int bmsr, bmcr, physup, gtsr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); physup = PHY_READ(sc, NSGPHY_MII_PHYSUP); if (physup & PHY_SUP_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; } switch (physup & (PHY_SUP_SPEED1 | PHY_SUP_SPEED0)) { case PHY_SUP_SPEED1: mii->mii_media_active |= IFM_1000_T; gtsr = PHY_READ(sc, MII_100T2SR); if (gtsr & GTSR_MS_RES) mii->mii_media_active |= IFM_ETH_MASTER; break; case PHY_SUP_SPEED0: mii->mii_media_active |= IFM_100_TX; break; case 0: mii->mii_media_active |= IFM_10_T; break; default: mii->mii_media_active |= IFM_NONE; mii->mii_media_status = 0; return; } if (physup & PHY_SUP_DUPLEX) 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; }