6689cad447
. Make internal service routines static.
. Use a consistent ordering of checks in MII_TICK. Do the work in the
mii_phy_tick() subroutine if appropriate.
. Call mii_phy_update() to trigger the callbacks.
276 lines
6.8 KiB
C
276 lines
6.8 KiB
C
/*-
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* Copyright (c) 2001 Jonathan Lemon
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* 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. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* driver for Intel 82553 and 82555 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/malloc.h>
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#include <sys/socket.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 <dev/mii/miidevs.h>
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#include <dev/mii/inphyreg.h>
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#include "miibus_if.h"
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static int inphy_probe(device_t dev);
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static int inphy_attach(device_t dev);
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static int inphy_detach(device_t dev);
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static device_method_t inphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, inphy_probe),
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DEVMETHOD(device_attach, inphy_attach),
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DEVMETHOD(device_detach, inphy_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 inphy_devclass;
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static driver_t inphy_driver = {
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"inphy",
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inphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, 0, 0);
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static int inphy_service(struct mii_softc *, struct mii_data *, int);
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static void inphy_status(struct mii_softc *);
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static int
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inphy_probe(device_t dev)
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{
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struct mii_attach_args *ma;
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device_t parent;
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ma = device_get_ivars(dev);
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parent = device_get_parent(device_get_parent(dev));
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/* Intel 82553 A/B steppings */
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if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxINTEL &&
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MII_MODEL(ma->mii_id2) == MII_MODEL_xxINTEL_I82553AB) {
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device_set_desc(dev, MII_STR_xxINTEL_I82553AB);
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return (0);
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}
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if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_INTEL) {
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switch (MII_MODEL(ma->mii_id2)) {
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case MII_MODEL_INTEL_I82555:
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device_set_desc(dev, MII_STR_INTEL_I82555);
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return (0);
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case MII_MODEL_INTEL_I82553C:
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device_set_desc(dev, MII_STR_INTEL_I82553C);
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return (0);
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case MII_MODEL_INTEL_I82562EM:
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device_set_desc(dev, MII_STR_INTEL_I82562EM);
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return (0);
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case MII_MODEL_INTEL_I82562ET:
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device_set_desc(dev, MII_STR_INTEL_I82562ET);
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return (0);
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}
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}
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return (ENXIO);
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}
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static int
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inphy_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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sc->mii_inst = mii->mii_instance;
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sc->mii_phy = ma->mii_phyno;
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sc->mii_service = inphy_service;
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sc->mii_pdata = mii;
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mii->mii_instance++;
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#if 0
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sc->mii_flags |= MIIF_NOISOLATE;
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#endif
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ifmedia_add(&mii->mii_media,
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IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
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BMCR_LOOP|BMCR_S100, NULL);
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mii_phy_reset(sc);
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sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
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device_printf(dev, " ");
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if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
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printf("no media present");
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else
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mii_add_media(mii, sc->mii_capabilities, sc->mii_inst);
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printf("\n");
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MIIBUS_MEDIAINIT(sc->mii_dev);
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return (0);
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}
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static int
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inphy_detach(device_t dev)
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{
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struct mii_softc *sc;
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struct mii_data *mii;
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sc = device_get_softc(dev);
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mii = device_get_softc(device_get_softc(dev));
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mii_phy_auto_stop(sc);
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sc->mii_dev = NULL;
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LIST_REMOVE(sc, mii_list);
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return (0);
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}
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static int
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inphy_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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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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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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switch (IFM_SUBTYPE(ife->ifm_media)) {
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case IFM_AUTO:
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/*
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* If we're already in auto mode, just return.
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*/
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if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
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return (0);
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(void) mii_phy_auto(sc, 0);
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break;
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case IFM_100_T4:
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/*
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* XXX Not supported as a manual setting right now.
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*/
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return (EINVAL);
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default:
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/*
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* BMCR data is stored in the ifmedia entry.
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*/
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PHY_WRITE(sc, MII_ANAR, mii_anar(ife->ifm_media));
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PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
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}
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break;
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case MII_TICK:
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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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inphy_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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inphy_status(struct mii_softc *sc)
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{
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struct mii_data *mii = sc->mii_pdata;
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int bmsr, bmcr, scr;
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mii->mii_media_status = IFM_AVALID;
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mii->mii_media_active = IFM_ETHER;
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bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
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if (bmsr & BMSR_LINK)
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mii->mii_media_status |= IFM_ACTIVE;
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bmcr = PHY_READ(sc, MII_BMCR);
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if (bmcr & BMCR_ISO) {
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mii->mii_media_active |= IFM_NONE;
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mii->mii_media_status = 0;
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return;
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}
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if (bmcr & BMCR_LOOP)
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mii->mii_media_active |= IFM_LOOP;
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if (bmcr & BMCR_AUTOEN) {
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if ((bmsr & BMSR_ACOMP) == 0) {
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mii->mii_media_active |= IFM_NONE;
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return;
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}
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scr = PHY_READ(sc, MII_INPHY_SCR);
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if (scr & SCR_S100)
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mii->mii_media_active |= IFM_100_TX;
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else
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mii->mii_media_active |= IFM_10_T;
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if (scr & SCR_FDX)
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mii->mii_media_active |= IFM_FDX;
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} else
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mii->mii_media_active |= mii_media_from_bmcr(bmcr);
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}
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