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.
249 lines
6.7 KiB
C
249 lines
6.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 2001 Wind River Systems
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* Copyright (c) 2001
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* Bill Paul <wpaul@bsdi.com>. All rights reserved.
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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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* 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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__FBSDID("$FreeBSD$");
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/*
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* Driver for the National Semiconductor DP83861, DP83865 and DP83891
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* 10/100/1000 PHYs.
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* Datasheet available at: http://www.national.com/ds/DP/DP83861.pdf
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* and at: http://www.national.com/ds/DP/DP83865.pdf
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*
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* The DP83891 is the older NS GigE PHY which isn't being sold
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* anymore. The DP83861 is its replacement, which is an 'enhanced'
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* firmware driven component. The major difference between the
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* two is that the DP83891 can't generate interrupts, while the
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* 83861 can (probably it wasn't originally designed to do this, but
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* it can now thanks to firmware updates). The DP83861 also allows
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* access to its internal RAM via indirect register access. The
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* DP83865 is an ultra low power version of the DP83861 and DP83891.
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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/nsgphyreg.h>
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#include "miibus_if.h"
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static int nsgphy_probe(device_t);
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static int nsgphy_attach(device_t);
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static device_method_t nsgphy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, nsgphy_probe),
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DEVMETHOD(device_attach, nsgphy_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 nsgphy_devclass;
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static driver_t nsgphy_driver = {
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"nsgphy",
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nsgphy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(nsgphy, miibus, nsgphy_driver, nsgphy_devclass, 0, 0);
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static int nsgphy_service(struct mii_softc *, struct mii_data *,int);
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static void nsgphy_status(struct mii_softc *);
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static const struct mii_phydesc nsgphys[] = {
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MII_PHY_DESC(xxNATSEMI, DP83861),
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MII_PHY_DESC(xxNATSEMI, DP83865),
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MII_PHY_DESC(xxNATSEMI, DP83891),
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MII_PHY_END
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};
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static const struct mii_phy_funcs nsgphy_funcs = {
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nsgphy_service,
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nsgphy_status,
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mii_phy_reset
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};
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static int
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nsgphy_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, nsgphys, BUS_PROBE_DEFAULT));
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}
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static int
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nsgphy_attach(device_t dev)
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{
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struct mii_softc *sc;
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sc = device_get_softc(dev);
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mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &nsgphy_funcs, 0);
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PHY_RESET(sc);
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/*
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* NB: the PHY has the 10BASE-T BMSR bits hard-wired to 0,
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* even though it supports 10BASE-T.
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*/
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sc->mii_capabilities = (PHY_READ(sc, MII_BMSR) |
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BMSR_10TFDX | BMSR_10THDX) & sc->mii_capmask;
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/*
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* Note that as documented manual 1000BASE-T modes of DP83865 only
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* work together with other National Semiconductor PHYs.
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*/
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if (sc->mii_capabilities & BMSR_EXTSTAT)
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sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
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mii_phy_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
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nsgphy_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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nsgphy_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, physup, gtsr;
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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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physup = PHY_READ(sc, NSGPHY_MII_PHYSUP);
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if (physup & PHY_SUP_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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switch (physup & (PHY_SUP_SPEED1 | PHY_SUP_SPEED0)) {
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case PHY_SUP_SPEED1:
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mii->mii_media_active |= IFM_1000_T;
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gtsr = PHY_READ(sc, MII_100T2SR);
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if (gtsr & GTSR_MS_RES)
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mii->mii_media_active |= IFM_ETH_MASTER;
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break;
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case PHY_SUP_SPEED0:
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mii->mii_media_active |= IFM_100_TX;
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break;
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case 0:
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mii->mii_media_active |= IFM_10_T;
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break;
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default:
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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 (physup & PHY_SUP_DUPLEX)
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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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