ebda8d9db8
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201 lines
4.9 KiB
C
201 lines
4.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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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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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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/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_var.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/fxp/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 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, 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 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 void inphy_reset(struct mii_softc *);
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static const struct mii_phydesc inphys[] = {
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MII_PHY_DESC(xxINTEL, I82553),
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MII_PHY_DESC(yyINTEL, I82553),
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MII_PHY_DESC(yyINTEL, I82555),
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MII_PHY_DESC(yyINTEL, I82562EM),
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MII_PHY_DESC(yyINTEL, I82562ET),
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MII_PHY_END
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};
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static const struct mii_phy_funcs inphy_funcs = {
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inphy_service,
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inphy_status,
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inphy_reset
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};
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static int
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inphy_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, inphys, BUS_PROBE_DEFAULT));
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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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mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &inphy_funcs, 1);
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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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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 ((if_getflags(mii->mii_ifp) & 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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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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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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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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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 |=
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IFM_FDX | mii_phy_flowstatus(sc);
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else
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mii->mii_media_active |= IFM_HDX;
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} else
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mii->mii_media_active = ife->ifm_media;
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}
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static void
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inphy_reset(struct mii_softc *sc)
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{
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mii_phy_reset(sc);
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/* Ensure Bay flow control is disabled. */
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PHY_WRITE(sc, MII_INPHY_SCR,
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PHY_READ(sc, MII_INPHY_SCR) & ~SCR_FLOWCTL);
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}
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