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b8a5d0481a
multiple PHYs. In case some PHYs currently driven by ukphy(4) exhibit problems when isolating due to incomplete implementations or silicon bugs we'll need to add specific drivers for these. Looking at NetBSD and OpenBSD I don't expect problems here though (quite the contrary; we still seem to set MIIF_NOISOLATE without good reason in a bunch of PHY drivers). - Fix a style(9) whitespace nit.
221 lines
6.8 KiB
C
221 lines
6.8 KiB
C
/* $NetBSD: ukphy.c,v 1.2 1999/04/23 04:24:32 thorpej Exp $ */
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/*-
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* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center, and by Frank van der Linden.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1997 Manuel Bouyer. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Manuel Bouyer.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* driver for generic unknown PHYs
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/errno.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include "miibus_if.h"
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static int ukphy_probe(device_t);
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static int ukphy_attach(device_t);
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static device_method_t ukphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, ukphy_probe),
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DEVMETHOD(device_attach, ukphy_attach),
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DEVMETHOD(device_detach, mii_phy_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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{ 0, 0 }
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};
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static devclass_t ukphy_devclass;
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static driver_t ukphy_driver = {
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"ukphy",
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ukphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(ukphy, miibus, ukphy_driver, ukphy_devclass, 0, 0);
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static int ukphy_service(struct mii_softc *, struct mii_data *, int);
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static int
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ukphy_probe(device_t dev)
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{
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/*
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* We know something is here, so always match at a low priority.
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*/
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device_set_desc(dev, "Generic IEEE 802.3u media interface");
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return (BUS_PROBE_GENERIC);
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}
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static int
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ukphy_attach(device_t dev)
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{
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struct mii_softc *sc;
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struct mii_attach_args *ma;
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struct mii_data *mii;
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sc = device_get_softc(dev);
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ma = device_get_ivars(dev);
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sc->mii_dev = device_get_parent(dev);
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mii = device_get_softc(sc->mii_dev);
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LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
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if (bootverbose)
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device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
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MII_OUI(ma->mii_id1, ma->mii_id2),
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MII_MODEL(ma->mii_id2), MII_REV(ma->mii_id2));
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sc->mii_inst = mii->mii_instance;
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sc->mii_phy = ma->mii_phyno;
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sc->mii_service = ukphy_service;
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sc->mii_pdata = mii;
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mii->mii_instance++;
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mii_phy_reset(sc);
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sc->mii_capabilities =
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PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
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if (sc->mii_capabilities & BMSR_EXTSTAT)
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sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
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device_printf(dev, " ");
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mii_phy_add_media(sc);
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printf("\n");
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MIIBUS_MEDIAINIT(sc->mii_dev);
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mii_phy_setmedia(sc);
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return (0);
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}
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static int
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ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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{
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int reg;
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switch (cmd) {
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case MII_POLLSTAT:
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/*
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* If we're not polling our PHY instance, just return.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst)
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return (0);
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break;
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case MII_MEDIACHG:
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/*
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* If the media indicates a different PHY instance,
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* isolate ourselves.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
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reg = PHY_READ(sc, MII_BMCR);
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PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
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return (0);
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}
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/*
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* If the interface is not up, don't do anything.
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*/
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if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
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break;
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mii_phy_setmedia(sc);
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break;
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case MII_TICK:
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/*
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* If we're not currently selected, just return.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst)
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return (0);
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if (mii_phy_tick(sc) == EJUSTRETURN)
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return (0);
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break;
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}
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/* Update the media status. */
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ukphy_status(sc);
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/* Callback if something changed. */
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mii_phy_update(sc, cmd);
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return (0);
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}
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