357 lines
9.1 KiB
C
357 lines
9.1 KiB
C
/*-
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* Copyright (c) 2007 The DragonFly Project. All rights reserved.
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*
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* This code is derived from software contributed to The DragonFly Project
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* by Sepherosa Ziehau <sepherosa@gmail.com>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of The DragonFly Project 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $DragonFly: src/sys/dev/netif/mii_layer/truephy.c,v 1.3 2008/02/10 07:29:27 sephe Exp $
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* $FreeBSD$
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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 <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_vlan_var.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/truephyreg.h>
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#include "miibus_if.h"
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#define TRUEPHY_FRAMELEN(mtu) \
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(ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + (mtu) + ETHER_CRC_LEN)
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static int truephy_service(struct mii_softc *, struct mii_data *, int);
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static int truephy_attach(device_t);
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static int truephy_probe(device_t);
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static void truephy_reset(struct mii_softc *);
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static void truephy_status(struct mii_softc *);
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static device_method_t truephy_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, truephy_probe),
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DEVMETHOD(device_attach, truephy_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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{ 0, 0 }
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};
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static const struct mii_phydesc truephys[] = {
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MII_PHY_DESC(AGERE, ET1011C),
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MII_PHY_END
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};
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static devclass_t truephy_devclass;
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static driver_t truephy_driver = {
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"truephy",
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truephy_methods,
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sizeof(struct mii_softc)
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};
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DRIVER_MODULE(truephy, miibus, truephy_driver, truephy_devclass, 0, 0);
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static const struct truephy_dsp {
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uint16_t index;
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uint16_t data;
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} truephy_dspcode[] = {
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{ 0x880b, 0x0926 }, /* AfeIfCreg4B1000Msbs */
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{ 0x880c, 0x0926 }, /* AfeIfCreg4B100Msbs */
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{ 0x880d, 0x0926 }, /* AfeIfCreg4B10Msbs */
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{ 0x880e, 0xb4d3 }, /* AfeIfCreg4B1000Lsbs */
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{ 0x880f, 0xb4d3 }, /* AfeIfCreg4B100Lsbs */
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{ 0x8810, 0xb4d3 }, /* AfeIfCreg4B10Lsbs */
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{ 0x8805, 0xb03e }, /* AfeIfCreg3B1000Msbs */
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{ 0x8806, 0xb03e }, /* AfeIfCreg3B100Msbs */
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{ 0x8807, 0xff00 }, /* AfeIfCreg3B10Msbs */
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{ 0x8808, 0xe090 }, /* AfeIfCreg3B1000Lsbs */
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{ 0x8809, 0xe110 }, /* AfeIfCreg3B100Lsbs */
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{ 0x880a, 0x0000 }, /* AfeIfCreg3B10Lsbs */
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{ 0x300d, 1 }, /* DisableNorm */
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{ 0x280c, 0x0180 }, /* LinkHoldEnd */
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{ 0x1c21, 0x0002 }, /* AlphaM */
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{ 0x3821, 6 }, /* FfeLkgTx0 */
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{ 0x381d, 1 }, /* FfeLkg1g4 */
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{ 0x381e, 1 }, /* FfeLkg1g5 */
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{ 0x381f, 1 }, /* FfeLkg1g6 */
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{ 0x3820, 1 }, /* FfeLkg1g7 */
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{ 0x8402, 0x01f0 }, /* Btinact */
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{ 0x800e, 20 }, /* LftrainTime */
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{ 0x800f, 24 }, /* DvguardTime */
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{ 0x8010, 46 } /* IdlguardTime */
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};
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static int
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truephy_probe(device_t dev)
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{
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return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT));
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}
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static int
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truephy_attach(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_phy = ma->mii_phyno;
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if (sc->mii_anegticks == 0)
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sc->mii_anegticks = MII_ANEGTICKS;
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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 = truephy_service;
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sc->mii_pdata = mii;
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sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP;
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mii->mii_instance++;
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truephy_reset(sc);
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sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
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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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/* No 1000baseT half-duplex support */
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sc->mii_extcapabilities &= ~EXTSR_1000THDX;
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}
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device_printf(dev, " ");
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if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
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(sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
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printf("no media present");
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else
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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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truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
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{
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struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
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int bmcr;
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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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bmcr = PHY_READ(sc, MII_BMCR);
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PHY_WRITE(sc, MII_BMCR, bmcr | 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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if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
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bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN;
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PHY_WRITE(sc, MII_BMCR, bmcr);
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PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN);
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}
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mii_phy_setmedia(sc);
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if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
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bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN;
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PHY_WRITE(sc, MII_BMCR, bmcr);
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if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
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PHY_WRITE(sc, MII_BMCR,
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bmcr | BMCR_AUTOEN | BMCR_STARTNEG);
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}
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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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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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truephy_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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truephy_reset(struct mii_softc *sc)
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{
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int i;
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for (i = 0; i < 2; ++i) {
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PHY_READ(sc, MII_PHYIDR1);
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PHY_READ(sc, MII_PHYIDR2);
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PHY_READ(sc, TRUEPHY_CTRL);
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PHY_WRITE(sc, TRUEPHY_CTRL,
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TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1);
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PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC);
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PHY_READ(sc, TRUEPHY_DATA);
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PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
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}
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PHY_READ(sc, MII_BMCR);
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PHY_READ(sc, TRUEPHY_CTRL);
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PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000);
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PHY_WRITE(sc, TRUEPHY_CTRL,
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TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0);
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#define N(arr) (int)(sizeof(arr) / sizeof(arr[0]))
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for (i = 0; i < N(truephy_dspcode); ++i) {
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const struct truephy_dsp *dsp = &truephy_dspcode[i];
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PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
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PHY_WRITE(sc, TRUEPHY_DATA, dsp->data);
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PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index);
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PHY_READ(sc, TRUEPHY_DATA);
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}
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#undef N
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PHY_READ(sc, MII_BMCR);
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PHY_READ(sc, TRUEPHY_CTRL);
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PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_S1000);
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PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1);
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mii_phy_reset(sc);
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if (TRUEPHY_FRAMELEN(sc->mii_pdata->mii_ifp->if_mtu) > 2048) {
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int conf;
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conf = PHY_READ(sc, TRUEPHY_CONF);
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conf &= ~TRUEPHY_CONF_TXFIFO_MASK;
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conf |= TRUEPHY_CONF_TXFIFO_24;
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PHY_WRITE(sc, TRUEPHY_CONF, conf);
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}
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}
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static void
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truephy_status(struct mii_softc *sc)
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{
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struct mii_data *mii = sc->mii_pdata;
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int bmsr, bmcr, sr;
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mii->mii_media_status = IFM_AVALID;
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mii->mii_media_active = IFM_ETHER;
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sr = PHY_READ(sc, TRUEPHY_SR);
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bmcr = PHY_READ(sc, MII_BMCR);
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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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if (bmcr & BMCR_AUTOEN) {
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if ((bmsr & BMSR_ACOMP) == 0) {
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mii->mii_media_active |= IFM_NONE;
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return;
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}
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}
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switch (sr & TRUEPHY_SR_SPD_MASK) {
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case TRUEPHY_SR_SPD_1000T:
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mii->mii_media_active |= IFM_1000_T;
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break;
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case TRUEPHY_SR_SPD_100TX:
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mii->mii_media_active |= IFM_100_TX;
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break;
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case TRUEPHY_SR_SPD_10T:
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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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/* XXX will this ever happen? */
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printf("invalid media SR %#x\n", sr);
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mii->mii_media_active |= IFM_NONE;
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return;
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}
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if (sr & TRUEPHY_SR_FDX)
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mii->mii_media_active |= IFM_FDX;
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else
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mii->mii_media_active |= IFM_HDX;
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}
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