718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
259 lines
7.2 KiB
C
259 lines
7.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-NetBSD
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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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* from: NetBSD: bmtphy.c,v 1.8 2002/07/03 06:25:50 simonb Exp
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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 the Broadcom BCM5201/BCM5202 "Mini-Theta" PHYs. This also
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* drives the PHY on the 3Com 3c905C. The 3c905C's PHY is described in
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* the 3c905C data sheet.
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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_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/bmtphyreg.h>
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#include "miibus_if.h"
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static int bmtphy_probe(device_t);
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static int bmtphy_attach(device_t);
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static device_method_t bmtphy_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, bmtphy_probe),
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DEVMETHOD(device_attach, bmtphy_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 bmtphy_devclass;
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static driver_t bmtphy_driver = {
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"bmtphy",
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bmtphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(bmtphy, miibus, bmtphy_driver, bmtphy_devclass, 0, 0);
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static int bmtphy_service(struct mii_softc *, struct mii_data *, int);
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static void bmtphy_status(struct mii_softc *);
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static void bmtphy_reset(struct mii_softc *);
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static const struct mii_phydesc bmtphys_dp[] = {
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MII_PHY_DESC(xxBROADCOM, BCM4401),
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MII_PHY_DESC(xxBROADCOM, BCM5201),
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MII_PHY_DESC(xxBROADCOM, BCM5214),
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MII_PHY_DESC(xxBROADCOM, BCM5221),
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MII_PHY_DESC(xxBROADCOM, BCM5222),
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MII_PHY_END
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};
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static const struct mii_phydesc bmtphys_lp[] = {
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MII_PHY_DESC(xxBROADCOM, 3C905B),
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MII_PHY_DESC(xxBROADCOM, 3C905C),
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MII_PHY_END
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};
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static const struct mii_phy_funcs bmtphy_funcs = {
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bmtphy_service,
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bmtphy_status,
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bmtphy_reset
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};
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static int
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bmtphy_probe(device_t dev)
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{
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int rval;
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/* Let exphy(4) take precedence for these. */
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rval = mii_phy_dev_probe(dev, bmtphys_lp, BUS_PROBE_LOW_PRIORITY);
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if (rval <= 0)
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return (rval);
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return (mii_phy_dev_probe(dev, bmtphys_dp, BUS_PROBE_DEFAULT));
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}
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static int
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bmtphy_attach(device_t dev)
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{
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mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &bmtphy_funcs, 1);
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return (0);
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}
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static int
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bmtphy_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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bmtphy_status(struct mii_softc *sc)
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{
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struct mii_data *mii;
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struct ifmedia_entry *ife;
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int bmsr, bmcr, aux_csr;
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mii = sc->mii_pdata;
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ife = mii->mii_media.ifm_cur;
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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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/*
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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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aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR);
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if (aux_csr & AUX_CSR_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 (aux_csr & AUX_CSR_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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bmtphy_reset(struct mii_softc *sc)
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{
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u_int16_t data;
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mii_phy_reset(sc);
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if (sc->mii_mpd_model == MII_MODEL_xxBROADCOM_BCM5221) {
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/* Enable shadow register mode. */
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data = PHY_READ(sc, 0x1f);
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PHY_WRITE(sc, 0x1f, data | 0x0080);
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/* Enable APD (Auto PowerDetect). */
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data = PHY_READ(sc, MII_BMTPHY_AUX2);
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PHY_WRITE(sc, MII_BMTPHY_AUX2, data | 0x0020);
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/* Enable clocks across APD for Auto-MDIX functionality. */
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data = PHY_READ(sc, MII_BMTPHY_INTR);
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PHY_WRITE(sc, MII_BMTPHY_INTR, data | 0x0004);
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/* Disable shadow register mode. */
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data = PHY_READ(sc, 0x1f);
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PHY_WRITE(sc, 0x1f, data & ~0x0080);
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}
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}
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