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.
242 lines
6.7 KiB
C
242 lines
6.7 KiB
C
/* $NetBSD: icsphy.c,v 1.41 2006/11/16 21:24:07 christos Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-NetBSD
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*
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* Copyright (c) 1998, 1999, 2000 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 Integrated Circuit Systems' ICS1889-1893 ethernet 10/100 PHY
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* datasheet from www.icst.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/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/icsphyreg.h>
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#include "miibus_if.h"
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static int icsphy_probe(device_t dev);
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static int icsphy_attach(device_t dev);
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static device_method_t icsphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, icsphy_probe),
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DEVMETHOD(device_attach, icsphy_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 icsphy_devclass;
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static driver_t icsphy_driver = {
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"icsphy",
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icsphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(icsphy, miibus, icsphy_driver, icsphy_devclass, 0, 0);
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static int icsphy_service(struct mii_softc *, struct mii_data *, int);
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static void icsphy_status(struct mii_softc *);
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static void icsphy_reset(struct mii_softc *);
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static const struct mii_phydesc icsphys[] = {
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MII_PHY_DESC(ICS, 1889),
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MII_PHY_DESC(ICS, 1890),
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MII_PHY_DESC(ICS, 1892),
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MII_PHY_DESC(ICS, 1893),
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MII_PHY_END
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};
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static const struct mii_phy_funcs icsphy_funcs = {
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icsphy_service,
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icsphy_status,
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icsphy_reset
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};
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static int
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icsphy_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, icsphys, BUS_PROBE_DEFAULT));
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}
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static int
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icsphy_attach(device_t dev)
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{
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mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE,
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&icsphy_funcs, 1);
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return (0);
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}
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static int
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icsphy_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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icsphy_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 bmcr, qpr;
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mii->mii_media_status = IFM_AVALID;
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mii->mii_media_active = IFM_ETHER;
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/*
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* Don't get link from the BMSR. It's available in the QPR,
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* and we have to read it twice to unlatch it anyhow. This
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* gives us fewer register reads.
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*/
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qpr = PHY_READ(sc, MII_ICSPHY_QPR); /* unlatch */
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qpr = PHY_READ(sc, MII_ICSPHY_QPR); /* real value */
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if (qpr & QPR_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 ((qpr & QPR_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 (qpr & QPR_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 (qpr & QPR_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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icsphy_reset(struct mii_softc *sc)
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{
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mii_phy_reset(sc);
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/* set powerdown feature */
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switch (sc->mii_mpd_model) {
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case MII_MODEL_ICS_1890:
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case MII_MODEL_ICS_1893:
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PHY_WRITE(sc, MII_ICSPHY_ECR2, ECR2_100AUTOPWRDN);
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break;
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case MII_MODEL_ICS_1892:
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PHY_WRITE(sc, MII_ICSPHY_ECR2,
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ECR2_10AUTOPWRDN|ECR2_100AUTOPWRDN);
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break;
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default:
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/* 1889 have no ECR2 */
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break;
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}
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/*
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* There is no description that the reset do auto-negotiation in the
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* data sheet.
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*/
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PHY_WRITE(sc, MII_BMCR, BMCR_S100|BMCR_STARTNEG|BMCR_FDX);
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}
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