259 lines
7.0 KiB
C
259 lines
7.0 KiB
C
/*-
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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.
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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 Altima AC101 10/100 PHY
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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/acphyreg.h>
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#include "miibus_if.h"
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static int acphy_probe(device_t);
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static int acphy_attach(device_t);
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static device_method_t acphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, acphy_probe),
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DEVMETHOD(device_attach, acphy_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 acphy_devclass;
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static driver_t acphy_driver = {
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"acphy",
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acphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(acphy, miibus, acphy_driver, acphy_devclass, 0, 0);
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static int acphy_service(struct mii_softc *, struct mii_data *, int);
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static void acphy_reset(struct mii_softc *);
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static void acphy_status(struct mii_softc *);
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static const struct mii_phydesc acphys[] = {
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MII_PHY_DESC(ALTIMA, AC101),
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MII_PHY_DESC(ALTIMA, AC101L),
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/* XXX This is reported to work, but it's not from any data sheet. */
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MII_PHY_DESC(ALTIMA, ACXXX),
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MII_PHY_END
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};
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static const struct mii_phy_funcs acphy_funcs = {
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acphy_service,
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acphy_status,
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acphy_reset
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};
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static int
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acphy_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, acphys, BUS_PROBE_DEFAULT));
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}
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static int
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acphy_attach(device_t dev)
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{
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struct mii_softc *sc;
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sc = device_get_softc(dev);
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mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &acphy_funcs, 0);
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PHY_RESET(sc);
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sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
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device_printf(dev, " ");
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#define ADD(m, c) ifmedia_add(&sc->mii_pdata->mii_media, (m), (c), NULL)
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if ((PHY_READ(sc, MII_ACPHY_MCTL) & AC_MCTL_FX_SEL) != 0) {
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sc->mii_flags |= MIIF_HAVEFIBER;
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst),
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MII_MEDIA_100_TX);
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printf("100baseFX, ");
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ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst),
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MII_MEDIA_100_TX_FDX);
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printf("100baseFX-FDX, ");
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}
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#undef ADD
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mii_phy_add_media(sc);
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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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acphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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{
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int reg;
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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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/* Wake & deisolate up if necessary */
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reg = PHY_READ(sc, MII_BMCR);
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if (reg & (BMCR_ISO | BMCR_PDOWN))
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PHY_WRITE(sc, MII_BMCR, reg & ~(BMCR_ISO | BMCR_PDOWN));
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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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* This PHY's autonegotiation doesn't need to be kicked.
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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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acphy_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, 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(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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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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diag = PHY_READ(sc, MII_ACPHY_DIAG);
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if (diag & AC_DIAG_SPEED)
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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 (diag & AC_DIAG_DUPLEX)
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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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acphy_reset(struct mii_softc *sc)
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{
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mii_phy_reset(sc);
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PHY_WRITE(sc, MII_ACPHY_INT, 0);
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}
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