146 lines
4.1 KiB
C
146 lines
4.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 2000 Berkeley Software Design, Inc.
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* Copyright (c) 1997, 1998, 1999, 2000
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* Bill Paul <wpaul@osd.bsdi.com>. 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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/*
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* driver for homePNA PHYs
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* This is really just a stub that allows us to identify homePNA-based
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* transceicers and display the link status. MII-based homePNA PHYs
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* only support one media type and no autonegotiation. If we were
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* really clever, we could tweak some of the vendor-specific registers
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* to optimize the link.
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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 "miibus_if.h"
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static int pnaphy_probe(device_t);
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static int pnaphy_attach(device_t);
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static device_method_t pnaphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, pnaphy_probe),
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DEVMETHOD(device_attach, pnaphy_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 driver_t pnaphy_driver = {
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"pnaphy",
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pnaphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(pnaphy, miibus, pnaphy_driver, 0, 0);
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static int pnaphy_service(struct mii_softc *, struct mii_data *,int);
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static const struct mii_phydesc pnaphys[] = {
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MII_PHY_DESC(yyAMD, 79c901home),
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MII_PHY_END
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};
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static const struct mii_phy_funcs pnaphy_funcs = {
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pnaphy_service,
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ukphy_status,
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mii_phy_reset
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};
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static int
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pnaphy_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, pnaphys, BUS_PROBE_DEFAULT));
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}
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static int
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pnaphy_attach(device_t dev)
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{
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mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_IS_HPNA |
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MIIF_NOMANPAUSE, &pnaphy_funcs, 1);
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return (0);
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}
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static int
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pnaphy_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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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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switch (IFM_SUBTYPE(ife->ifm_media)) {
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case IFM_HPNA_1:
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mii_phy_setmedia(sc);
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break;
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default:
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return (EINVAL);
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}
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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 (IFM_SUBTYPE(mii->mii_media_active) == IFM_10_T)
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mii->mii_media_active = IFM_ETHER | IFM_HPNA_1;
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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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