360 lines
9.5 KiB
C
360 lines
9.5 KiB
C
/* OpenBSD: qsphy.c,v 1.6 2000/08/26 20:04:18 nate Exp */
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/* NetBSD: qsphy.c,v 1.19 2000/02/02 23:34:57 thorpej Exp */
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/*-
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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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* 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 the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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* 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 Manuel Bouyer.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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/*
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* driver for Quality Semiconductor's QS6612 ethernet 10/100 PHY
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* datasheet from www.qualitysemi.com
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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 <dev/mii/miidevs.h>
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#include <dev/mii/qsphyreg.h>
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#include "miibus_if.h"
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#if !defined(lint)
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static const char rcsid[] =
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"$FreeBSD$";
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#endif
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static int qsphy_probe (device_t);
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static int qsphy_attach (device_t);
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static int qsphy_detach (device_t);
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static device_method_t qsphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, qsphy_probe),
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DEVMETHOD(device_attach, qsphy_attach),
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DEVMETHOD(device_detach, qsphy_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 qsphy_devclass;
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static driver_t qsphy_driver = {
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"qsphy",
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qsphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(qsphy, miibus, qsphy_driver, qsphy_devclass, 0, 0);
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static int qsphy_service(struct mii_softc *, struct mii_data *, int);
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static void qsphy_reset(struct mii_softc *);
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static void qsphy_status(struct mii_softc *);
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static int qsphy_probe(dev)
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device_t dev;
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{
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struct mii_attach_args *ma;
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ma = device_get_ivars(dev);
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if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_QUALSEMI &&
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MII_MODEL(ma->mii_id2) == MII_MODEL_QUALSEMI_QS6612) {
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device_set_desc(dev, MII_STR_QUALSEMI_QS6612);
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} else
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return (ENXIO);
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return (0);
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}
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static int qsphy_attach(dev)
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device_t dev;
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{
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struct mii_softc *sc;
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struct mii_attach_args *ma;
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struct mii_data *mii;
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sc = device_get_softc(dev);
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ma = device_get_ivars(dev);
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sc->mii_dev = device_get_parent(dev);
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mii = device_get_softc(sc->mii_dev);
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LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
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sc->mii_inst = mii->mii_instance;
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sc->mii_phy = ma->mii_phyno;
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sc->mii_service = qsphy_service;
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sc->mii_pdata = mii;
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sc->mii_flags |= MIIF_NOISOLATE;
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qsphy_reset(sc);
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mii->mii_instance++;
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sc->mii_capabilities =
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PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
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device_printf(dev, " ");
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mii_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 qsphy_detach(dev)
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device_t dev;
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{
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struct mii_softc *sc;
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struct mii_data *mii;
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sc = device_get_softc(dev);
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mii = device_get_softc(device_get_parent(dev));
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sc->mii_dev = NULL;
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LIST_REMOVE(sc, mii_list);
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return(0);
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}
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static int
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qsphy_service(sc, mii, cmd)
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struct mii_softc *sc;
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struct mii_data *mii;
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int cmd;
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{
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int reg;
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switch (cmd) {
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case MII_POLLSTAT:
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/*
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* If we're not polling our PHY instance, just return.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst)
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return (0);
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break;
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case MII_MEDIACHG:
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/*
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* If the media indicates a different PHY instance,
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* isolate ourselves.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
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reg = PHY_READ(sc, MII_BMCR);
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PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
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return (0);
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}
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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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switch (IFM_SUBTYPE(ife->ifm_media)) {
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case IFM_AUTO:
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/*
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* If we're already in auto mode, just return.
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*/
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if (PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN)
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return (0);
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(void) mii_phy_auto(sc, 1);
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break;
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default:
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/*
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* BMCR data is stored in the ifmedia entry.
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*/
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PHY_WRITE(sc, MII_ANAR,
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mii_anar(ife->ifm_media));
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PHY_WRITE(sc, MII_BMCR, ife->ifm_data);
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}
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break;
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case MII_TICK:
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/*
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* If we're not currently selected, just return.
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*/
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if (IFM_INST(ife->ifm_media) != sc->mii_inst)
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return (0);
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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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* Only used for autonegotiation.
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*/
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if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
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break;
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/*
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* check for link.
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* Read the status register twice; BMSR_LINK is latch-low.
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*/
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reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
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if (reg & BMSR_LINK)
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break;
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/*
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* Only retry autonegotiation every 5 seconds.
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*/
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if (++sc->mii_ticks != 5)
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return (0);
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sc->mii_ticks = 0;
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qsphy_reset(sc);
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if (mii_phy_auto(sc, 0) == 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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qsphy_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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qsphy_status(sc)
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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, pctl;
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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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pctl = PHY_READ(sc, MII_QSPHY_PCTL) |
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PHY_READ(sc, MII_QSPHY_PCTL);
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switch (pctl & PCTL_OPMASK) {
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case PCTL_10_T:
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mii->mii_media_active |= IFM_10_T;
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break;
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case PCTL_10_T_FDX:
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mii->mii_media_active |= IFM_10_T|IFM_FDX;
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break;
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case PCTL_100_TX:
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mii->mii_media_active |= IFM_100_TX;
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break;
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case PCTL_100_TX_FDX:
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mii->mii_media_active |= IFM_100_TX|IFM_FDX;
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break;
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case PCTL_100_T4:
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mii->mii_media_active |= IFM_100_T4;
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break;
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default:
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/* Erg... this shouldn't happen. */
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mii->mii_media_active |= IFM_NONE;
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break;
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}
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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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qsphy_reset(sc)
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struct mii_softc *sc;
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{
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mii_phy_reset(sc);
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PHY_WRITE(sc, MII_QSPHY_IMASK, 0);
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}
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