61a3ac6e27
interface. Make MII drivers forget about 'struct ifnet'. Later plan is to provide an administrative downcall from ifnet layer into drivers, to inform them about administrative status change. If someone thinks that processing MII events for an administratively down interface is a big problem, then drivers would turn MII processing off. The following MII drivers do evil things, like strcmp() on driver name, so they still need knowledge of ifnet and thus include if_var.h. They all need to be fixed: sys/dev/mii/brgphy.c sys/dev/mii/e1000phy.c sys/dev/mii/ip1000phy.c sys/dev/mii/jmphy.c sys/dev/mii/nsphy.c sys/dev/mii/rgephy.c sys/dev/mii/truephy.c Sponsored by: Netflix Sponsored by: Nginx, Inc.
224 lines
6.0 KiB
C
224 lines
6.0 KiB
C
/*-
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* Copyright (c) 2000,2001 Jonathan Chen.
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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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* without modification, immediately at the beginning of the file.
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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
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* the documentation and/or other materials provided with the
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* distribution.
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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 FOR
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* 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Driver for the TDK 78Q2120 MII
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*
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* References:
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* Datasheet for the 78Q2120 - http://www.tsc.tdk.com/lan/78q2120.pdf
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* Most of this code stolen from ukphy.c
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*/
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/*
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* The TDK 78Q2120 is found on some Xircom X3201 based CardBus cards,
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* also spotted on some 3C575 cards. It's just like any other normal
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* phy, except it does auto negotiation in a different way.
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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 "miidevs.h"
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#include <dev/mii/tdkphyreg.h>
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#include "miibus_if.h"
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static int tdkphy_probe(device_t);
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static int tdkphy_attach(device_t);
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static device_method_t tdkphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, tdkphy_probe),
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DEVMETHOD(device_attach, tdkphy_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 tdkphy_devclass;
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static driver_t tdkphy_driver = {
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"tdkphy",
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tdkphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(tdkphy, miibus, tdkphy_driver, tdkphy_devclass, 0, 0);
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static int tdkphy_service(struct mii_softc *, struct mii_data *, int);
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static void tdkphy_status(struct mii_softc *);
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static const struct mii_phydesc tdkphys[] = {
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MII_PHY_DESC(xxTSC, 78Q2120),
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MII_PHY_END
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};
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static const struct mii_phy_funcs tdkphy_funcs = {
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tdkphy_service,
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tdkphy_status,
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mii_phy_reset
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};
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static int
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tdkphy_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, tdkphys, BUS_PROBE_DEFAULT));
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}
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static int
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tdkphy_attach(device_t dev)
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{
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mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &tdkphy_funcs, 1);
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return (0);
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}
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static int
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tdkphy_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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mii_phy_setmedia(sc);
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break;
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case MII_TICK:
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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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PHY_STATUS(sc);
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if (sc->mii_pdata->mii_media_active & IFM_FDX)
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PHY_WRITE(sc, MII_BMCR, PHY_READ(sc, MII_BMCR) | BMCR_FDX);
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else
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PHY_WRITE(sc, MII_BMCR, PHY_READ(sc, MII_BMCR) & ~BMCR_FDX);
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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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tdkphy_status(struct mii_softc *phy)
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{
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struct mii_data *mii = phy->mii_pdata;
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int bmsr, bmcr, anlpar, diag;
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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(phy, MII_BMSR) | PHY_READ(phy, 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(phy, 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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/*
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* NWay autonegotiation takes the highest-order common
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* bit of the ANAR and ANLPAR (i.e. best media advertised
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* both by us and our link partner).
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*/
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if ((bmsr & BMSR_ACOMP) == 0) {
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/* Erg, still trying, I guess... */
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mii->mii_media_active |= IFM_NONE;
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return;
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}
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anlpar = PHY_READ(phy, MII_ANAR) & PHY_READ(phy, MII_ANLPAR);
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/*
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* ANLPAR doesn't get set on my card, but we check it anyway,
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* since it is mentioned in the 78Q2120 specs.
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*/
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if (anlpar & ANLPAR_TX_FD)
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mii->mii_media_active |= IFM_100_TX|IFM_FDX;
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else if (anlpar & ANLPAR_T4)
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mii->mii_media_active |= IFM_100_T4|IFM_HDX;
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else if (anlpar & ANLPAR_TX)
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mii->mii_media_active |= IFM_100_TX|IFM_HDX;
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else if (anlpar & ANLPAR_10_FD)
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mii->mii_media_active |= IFM_10_T|IFM_FDX;
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else if (anlpar & ANLPAR_10)
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mii->mii_media_active |= IFM_10_T|IFM_HDX;
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else {
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/*
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* ANLPAR isn't set, which leaves two possibilities:
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* 1) Auto negotiation failed
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* 2) Auto negotiation completed, but the card forgot
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* to set ANLPAR.
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* So we check the MII_DIAG(18) register...
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*/
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diag = PHY_READ(phy, MII_DIAG);
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if (diag & DIAG_NEGFAIL) /* assume 10baseT if no neg */
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mii->mii_media_active |= IFM_10_T|IFM_HDX;
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else {
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if (diag & DIAG_DUPLEX)
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mii->mii_media_active |= IFM_FDX;
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else
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mii->mii_media_active |= IFM_HDX;
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if (diag & DIAG_RATE_100)
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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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}
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}
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if ((mii->mii_media_active & IFM_FDX) != 0)
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mii->mii_media_active |= mii_phy_flowstatus(phy);
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} else
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mii->mii_media_active = ife->ifm_media;
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}
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