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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.
263 lines
7.7 KiB
C
263 lines
7.7 KiB
C
/* $NetBSD: nsphyter.c,v 1.28 2008/01/20 07:58:19 msaitoh Exp $ */
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/*-
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* Copyright (c) 1998, 1999, 2000, 2001 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 the National Semiconductor's DP83843, DP83847 and DP83849
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* `PHYTER' Ethernet 10/100 PHYs
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* Data Sheets are available from http://www.national.com
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*
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* We also support the DP83815 `MacPHYTER' internal PHY since, for our
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* purposes, they are compatible.
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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/bus.h>
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#include <sys/errno.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 <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/nsphyterreg.h>
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#include "miibus_if.h"
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static device_probe_t nsphyter_probe;
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static device_attach_t nsphyter_attach;
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static device_method_t nsphyter_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, nsphyter_probe),
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DEVMETHOD(device_attach, nsphyter_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 nsphyter_devclass;
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static driver_t nsphyter_driver = {
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"nsphyter",
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nsphyter_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(nsphyter, miibus, nsphyter_driver, nsphyter_devclass, 0, 0);
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static int nsphyter_service(struct mii_softc *, struct mii_data *, int);
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static void nsphyter_status(struct mii_softc *);
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static void nsphyter_reset(struct mii_softc *);
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static const struct mii_phydesc nsphyters[] = {
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MII_PHY_DESC(xxNATSEMI, DP83815),
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MII_PHY_DESC(xxNATSEMI, DP83843),
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MII_PHY_DESC(xxNATSEMI, DP83847),
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MII_PHY_DESC(xxNATSEMI, DP83849),
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MII_PHY_END
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};
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static const struct mii_phy_funcs nsphyter_funcs = {
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nsphyter_service,
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nsphyter_status,
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nsphyter_reset
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};
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static int
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nsphyter_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, nsphyters, BUS_PROBE_DEFAULT));
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}
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static int
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nsphyter_attach(device_t dev)
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{
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mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &nsphyter_funcs, 1);
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return (0);
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}
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static int
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nsphyter_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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nsphyter_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, physts;
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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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physts = PHY_READ(sc, MII_NSPHYTER_PHYSTS);
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if ((physts & PHYSTS_LINK) != 0)
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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) != 0) {
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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) != 0)
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mii->mii_media_active |= IFM_LOOP;
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if ((bmcr & BMCR_AUTOEN) != 0) {
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/*
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* The media 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 ((physts & PHYSTS_SPEED10) != 0)
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mii->mii_media_active |= IFM_10_T;
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else
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mii->mii_media_active |= IFM_100_TX;
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if ((physts & PHYSTS_DUPLEX) != 0)
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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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nsphyter_reset(struct mii_softc *sc)
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{
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struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
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int reg, i;
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if ((sc->mii_flags & MIIF_NOISOLATE) != 0)
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reg = BMCR_RESET;
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else
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reg = BMCR_RESET | BMCR_ISO;
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PHY_WRITE(sc, MII_BMCR, reg);
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/*
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* It is best to allow a little time for the reset to settle
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* in before we start polling the BMCR again. Notably, the
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* DP8384{3,7} manuals state that there should be a 500us delay
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* between asserting software reset and attempting MII serial
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* operations. Be conservative. Also, a DP83815 can get into
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* a bad state on cable removal and reinsertion if we do not
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* delay here.
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*/
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DELAY(1000);
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/*
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* Wait another 2s for it to complete.
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* This is only a little overkill as under normal circumstances
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* the PHY can take up to 1s to complete reset.
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* This is also a bit odd because after a reset, the BMCR will
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* clear the reset bit and simply reports 0 even though the reset
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* is not yet complete.
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*/
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for (i = 0; i < 1000; i++) {
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reg = PHY_READ(sc, MII_BMCR);
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if (reg != 0 && (reg & BMCR_RESET) == 0)
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break;
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DELAY(2000);
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}
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if ((sc->mii_flags & MIIF_NOISOLATE) == 0) {
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if ((ife == NULL && sc->mii_inst != 0) ||
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(ife != NULL && IFM_INST(ife->ifm_media) != sc->mii_inst))
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PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
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}
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}
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