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.
210 lines
5.6 KiB
C
210 lines
5.6 KiB
C
/*-
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* Copyright (c) 1997, 1998, 1999
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* Bill Paul <wpaul@ee.columbia.edu>. 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 Bill Paul.
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* 4. 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 Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
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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
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* 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 AMD AM79c873 PHYs
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* This driver also works for Davicom DM910{1,2} PHYs, which appear
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* to be AM79c873 workalikes.
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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/module.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 "miidevs.h"
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#include <dev/mii/amphyreg.h>
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#include "miibus_if.h"
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static int amphy_probe(device_t);
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static int amphy_attach(device_t);
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static device_method_t amphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, amphy_probe),
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DEVMETHOD(device_attach, amphy_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 amphy_devclass;
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static driver_t amphy_driver = {
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"amphy",
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amphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(amphy, miibus, amphy_driver, amphy_devclass, 0, 0);
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static int amphy_service(struct mii_softc *, struct mii_data *, int);
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static void amphy_status(struct mii_softc *);
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static const struct mii_phydesc amphys[] = {
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MII_PHY_DESC(xxDAVICOM, DM9102),
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MII_PHY_DESC(xxDAVICOM, DM9101),
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MII_PHY_DESC(yyDAVICOM, DM9101),
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MII_PHY_END
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};
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static const struct mii_phy_funcs amphy_funcs = {
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amphy_service,
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amphy_status,
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mii_phy_reset
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};
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static int
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amphy_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, amphys, BUS_PROBE_DEFAULT));
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}
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static int
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amphy_attach(device_t dev)
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{
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mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &hy_funcs, 1);
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return (0);
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}
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static int
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amphy_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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/* 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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amphy_status(struct mii_softc *sc)
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{
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struct mii_data *mii = sc->mii_pdata;
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int bmsr, bmcr, par, anlpar;
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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) |
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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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/*
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* The PAR status bits are only valid if autonegotiation
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* has completed (or it's disabled).
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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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if (PHY_READ(sc, MII_ANER) & ANER_LPAN) {
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anlpar = PHY_READ(sc, MII_ANAR) &
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PHY_READ(sc, MII_ANLPAR);
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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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mii->mii_media_active |= IFM_NONE;
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return;
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}
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/*
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* Link partner is not capable of autonegotiation.
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*/
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par = PHY_READ(sc, MII_AMPHY_DSCSR);
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if (par & DSCSR_100FDX)
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mii->mii_media_active |= IFM_100_TX|IFM_FDX;
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else if (par & DSCSR_100HDX)
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mii->mii_media_active |= IFM_100_TX|IFM_HDX;
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else if (par & DSCSR_10FDX)
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mii->mii_media_active |= IFM_10_T|IFM_HDX;
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else if (par & DSCSR_10HDX)
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mii->mii_media_active |= IFM_10_T|IFM_HDX;
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if ((mii->mii_media_active & IFM_FDX) != 0)
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mii->mii_media_active |= mii_phy_flowstatus(sc);
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} else
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mii->mii_media_active = ife->ifm_media;
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}
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