198 lines
5.7 KiB
C
198 lines
5.7 KiB
C
/* $NetBSD: exphy.c,v 1.16 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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*
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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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*
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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 3Com internal 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/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 "miidevs.h"
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#include "miibus_if.h"
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static int xlphy_probe(device_t);
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static int xlphy_attach(device_t);
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static device_method_t xlphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, xlphy_probe),
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DEVMETHOD(device_attach, xlphy_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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DEVMETHOD_END
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};
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static devclass_t xlphy_devclass;
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static driver_t xlphy_driver = {
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"xlphy",
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xlphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(xlphy, miibus, xlphy_driver, xlphy_devclass, 0, 0);
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static int xlphy_service(struct mii_softc *, struct mii_data *, int);
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static void xlphy_reset(struct mii_softc *);
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/*
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* Some 3Com internal PHYs report zero for OUI and model, others use
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* actual values.
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* Note that the 3Com internal PHYs having OUI 0x105a and model 0 are
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* handled fine by ukphy(4); they can be isolated and don't require
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* special treatment after reset.
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*/
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static const struct mii_phydesc xlphys[] = {
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{ 0, 0, "3Com internal media interface" },
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MII_PHY_DESC(xxBROADCOM, 3C905C),
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MII_PHY_END
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};
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static const struct mii_phy_funcs xlphy_funcs = {
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xlphy_service,
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ukphy_status,
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xlphy_reset
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};
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static int
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xlphy_probe(device_t dev)
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{
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if (strcmp(device_get_name(device_get_parent(device_get_parent(dev))),
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"xl") == 0)
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return (mii_phy_dev_probe(dev, xlphys, BUS_PROBE_DEFAULT));
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return (ENXIO);
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}
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static int
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xlphy_attach(device_t dev)
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{
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/*
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* The 3Com PHY can never be isolated.
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*/
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mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
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&xlphy_funcs, 1);
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return (0);
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}
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static int
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xlphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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{
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switch (cmd) {
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case MII_POLLSTAT:
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break;
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case MII_MEDIACHG:
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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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* Is the interface even up?
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*/
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if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
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return (0);
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/*
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* The 3Com PHY's autonegotiation doesn't need to be
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* kicked; it continues in the background.
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*/
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break;
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}
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/* Update the media status. */
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PHY_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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static void
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xlphy_reset(struct mii_softc *sc)
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{
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mii_phy_reset(sc);
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/*
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* XXX 3Com PHY doesn't set the BMCR properly after
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* XXX reset, which breaks autonegotiation.
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*/
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PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_AUTOEN|BMCR_FDX);
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}
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