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-rw-r--r--sys/dev/mii/brgphy.c418
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diff --git a/sys/dev/mii/brgphy.c b/sys/dev/mii/brgphy.c
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+/*
+ * Copyright (c) 2000
+ * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Bill Paul.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Driver for the Broadcom BCR5400 1000baseTX PHY. Speed is always
+ * 1000mbps; all we need to negotiate here is full or half duplex.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/bus.h>
+
+#include <machine/clock.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+#include <dev/mii/miidevs.h>
+
+#include <dev/mii/brgphyreg.h>
+
+#include "miibus_if.h"
+
+#if !defined(lint)
+static const char rcsid[] =
+ "$FreeBSD$";
+#endif
+
+static int brgphy_probe(device_t);
+static int brgphy_attach(device_t);
+
+static device_method_t brgphy_methods[] = {
+ /* device interface */
+ DEVMETHOD(device_probe, brgphy_probe),
+ DEVMETHOD(device_attach, brgphy_attach),
+ DEVMETHOD(device_detach, mii_phy_detach),
+ DEVMETHOD(device_shutdown, bus_generic_shutdown),
+ { 0, 0 }
+};
+
+static devclass_t brgphy_devclass;
+
+static driver_t brgphy_driver = {
+ "brgphy",
+ brgphy_methods,
+ sizeof(struct mii_softc)
+};
+
+DRIVER_MODULE(brgphy, miibus, brgphy_driver, brgphy_devclass, 0, 0);
+
+static int brgphy_service(struct mii_softc *, struct mii_data *, int);
+static void brgphy_status(struct mii_softc *);
+static int brgphy_mii_phy_auto(struct mii_softc *);
+
+static int
+brgphy_probe(dev)
+ device_t dev;
+{
+ struct mii_attach_args *ma;
+
+ ma = device_get_ivars(dev);
+
+ if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
+ MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5400) {
+ device_set_desc(dev, MII_STR_xxBROADCOM_BCM5400);
+ return(0);
+ }
+
+ if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
+ MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5401) {
+ device_set_desc(dev, MII_STR_xxBROADCOM_BCM5401);
+ return(0);
+ }
+
+ if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
+ MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5411) {
+ device_set_desc(dev, MII_STR_xxBROADCOM_BCM5411);
+ return(0);
+ }
+
+ if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
+ MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5701) {
+ device_set_desc(dev, MII_STR_xxBROADCOM_BCM5701);
+ return(0);
+ }
+
+ if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxBROADCOM &&
+ MII_MODEL(ma->mii_id2) == MII_MODEL_xxBROADCOM_BCM5703) {
+ device_set_desc(dev, MII_STR_xxBROADCOM_BCM5703);
+ return(0);
+ }
+
+ return(ENXIO);
+}
+
+static int
+brgphy_attach(dev)
+ device_t dev;
+{
+ struct mii_softc *sc;
+ struct mii_attach_args *ma;
+ struct mii_data *mii;
+ const char *sep = "";
+
+ sc = device_get_softc(dev);
+ ma = device_get_ivars(dev);
+ sc->mii_dev = device_get_parent(dev);
+ mii = device_get_softc(sc->mii_dev);
+ LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
+
+ sc->mii_inst = mii->mii_instance;
+ sc->mii_phy = ma->mii_phyno;
+ sc->mii_service = brgphy_service;
+ sc->mii_pdata = mii;
+
+ sc->mii_flags |= MIIF_NOISOLATE;
+ mii->mii_instance++;
+
+#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
+#define PRINT(s) printf("%s%s", sep, s); sep = ", "
+
+ ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
+ BMCR_ISO);
+#if 0
+ ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
+ BMCR_LOOP|BMCR_S100);
+#endif
+
+ mii_phy_reset(sc);
+
+
+ sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
+ sc->mii_capabilities &= ~BMSR_ANEG;
+ device_printf(dev, " ");
+ mii_add_media(sc);
+ ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0, sc->mii_inst),
+ BRGPHY_BMCR_FDX);
+ PRINT(", 1000baseTX");
+ ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX, sc->mii_inst), 0);
+ PRINT("1000baseTX-FDX");
+ ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
+ PRINT("auto");
+
+ printf("\n");
+#undef ADD
+#undef PRINT
+
+ MIIBUS_MEDIAINIT(sc->mii_dev);
+ return(0);
+}
+
+static int
+brgphy_service(sc, mii, cmd)
+ struct mii_softc *sc;
+ struct mii_data *mii;
+ int cmd;
+{
+ struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+ int reg, speed;
+
+ switch (cmd) {
+ case MII_POLLSTAT:
+ /*
+ * If we're not polling our PHY instance, just return.
+ */
+ if (IFM_INST(ife->ifm_media) != sc->mii_inst)
+ return (0);
+ break;
+
+ case MII_MEDIACHG:
+ /*
+ * If the media indicates a different PHY instance,
+ * isolate ourselves.
+ */
+ if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
+ reg = PHY_READ(sc, MII_BMCR);
+ PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
+ return (0);
+ }
+
+ /*
+ * If the interface is not up, don't do anything.
+ */
+ if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+ break;
+
+ PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL,
+ BRGPHY_PHY_EXTCTL_HIGH_LA|BRGPHY_PHY_EXTCTL_EN_LTR);
+ PHY_WRITE(sc, BRGPHY_MII_AUXCTL,
+ BRGPHY_AUXCTL_LONG_PKT|BRGPHY_AUXCTL_TX_TST);
+ PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
+
+ switch (IFM_SUBTYPE(ife->ifm_media)) {
+ case IFM_AUTO:
+#ifdef foo
+ /*
+ * If we're already in auto mode, just return.
+ */
+ if (PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_AUTOEN)
+ return (0);
+#endif
+ (void) brgphy_mii_phy_auto(sc);
+ break;
+ case IFM_1000_T:
+ speed = BRGPHY_S1000;
+ goto setit;
+ case IFM_100_TX:
+ speed = BRGPHY_S100;
+ goto setit;
+ case IFM_10_T:
+ speed = BRGPHY_S10;
+setit:
+ if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) {
+ PHY_WRITE(sc, BRGPHY_MII_BMCR,
+ BRGPHY_BMCR_FDX|speed);
+ } else {
+ PHY_WRITE(sc, BRGPHY_MII_BMCR, speed);
+ }
+ PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE);
+
+ if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)
+ break;
+
+ /*
+ * When settning the link manually, one side must
+ * be the master and the other the slave. However
+ * ifmedia doesn't give us a good way to specify
+ * this, so we fake it by using one of the LINK
+ * flags. If LINK0 is set, we program the PHY to
+ * be a master, otherwise it's a slave.
+ */
+ if ((mii->mii_ifp->if_flags & IFF_LINK0)) {
+ PHY_WRITE(sc, BRGPHY_MII_1000CTL,
+ BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC);
+ } else {
+ PHY_WRITE(sc, BRGPHY_MII_1000CTL,
+ BRGPHY_1000CTL_MSE);
+ }
+ break;
+#ifdef foo
+ case IFM_NONE:
+ PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
+ break;
+#endif
+ case IFM_100_T4:
+ default:
+ return (EINVAL);
+ }
+ break;
+
+ case MII_TICK:
+ /*
+ * If we're not currently selected, just return.
+ */
+ if (IFM_INST(ife->ifm_media) != sc->mii_inst)
+ return (0);
+
+ /*
+ * Is the interface even up?
+ */
+ if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
+ return (0);
+
+ /*
+ * Only used for autonegotiation.
+ */
+ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
+ break;
+
+ /*
+ * Check to see if we have link. If we do, we don't
+ * need to restart the autonegotiation process. Read
+ * the BMSR twice in case it's latched.
+ */
+ reg = PHY_READ(sc, BRGPHY_MII_AUXSTS);
+ if (reg & BRGPHY_AUXSTS_LINK)
+ break;
+
+ /*
+ * Only retry autonegotiation every 5 seconds.
+ */
+ if (++sc->mii_ticks != 5)
+ return (0);
+
+ sc->mii_ticks = 0;
+ mii_phy_reset(sc);
+ brgphy_mii_phy_auto(sc);
+ return (0);
+ }
+
+ /* Update the media status. */
+ brgphy_status(sc);
+
+ /* Callback if something changed. */
+ mii_phy_update(sc, cmd);
+ return (0);
+}
+
+static void
+brgphy_status(sc)
+ struct mii_softc *sc;
+{
+ struct mii_data *mii = sc->mii_pdata;
+ struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
+ int bmsr, bmcr;
+
+ mii->mii_media_status = IFM_AVALID;
+ mii->mii_media_active = IFM_ETHER;
+
+ bmsr = PHY_READ(sc, BRGPHY_MII_BMSR);
+ if (PHY_READ(sc, BRGPHY_MII_AUXSTS) & BRGPHY_AUXSTS_LINK)
+ mii->mii_media_status |= IFM_ACTIVE;
+
+ bmcr = PHY_READ(sc, BRGPHY_MII_BMCR);
+
+ if (bmcr & BRGPHY_BMCR_LOOP)
+ mii->mii_media_active |= IFM_LOOP;
+
+ if (bmcr & BRGPHY_BMCR_AUTOEN) {
+ if ((bmsr & BRGPHY_BMSR_ACOMP) == 0) {
+ /* Erg, still trying, I guess... */
+ mii->mii_media_active |= IFM_NONE;
+ return;
+ }
+
+ switch (PHY_READ(sc, BRGPHY_MII_AUXSTS) &
+ BRGPHY_AUXSTS_AN_RES) {
+ case BRGPHY_RES_1000FD:
+ mii->mii_media_active |= IFM_1000_T | IFM_FDX;
+ break;
+ case BRGPHY_RES_1000HD:
+ mii->mii_media_active |= IFM_1000_T | IFM_HDX;
+ break;
+ case BRGPHY_RES_100FD:
+ mii->mii_media_active |= IFM_100_TX | IFM_FDX;
+ break;
+ case BRGPHY_RES_100T4:
+ mii->mii_media_active |= IFM_100_T4;
+ break;
+ case BRGPHY_RES_100HD:
+ mii->mii_media_active |= IFM_100_TX | IFM_HDX;
+ break;
+ case BRGPHY_RES_10FD:
+ mii->mii_media_active |= IFM_10_T | IFM_FDX;
+ break;
+ case BRGPHY_RES_10HD:
+ mii->mii_media_active |= IFM_10_T | IFM_HDX;
+ break;
+ default:
+ mii->mii_media_active |= IFM_NONE;
+ break;
+ }
+ return;
+ }
+
+ mii->mii_media_active = ife->ifm_media;
+
+ return;
+}
+
+
+static int
+brgphy_mii_phy_auto(mii)
+ struct mii_softc *mii;
+{
+ int ktcr = 0;
+
+ mii_phy_reset(mii);
+ PHY_WRITE(mii, BRGPHY_MII_BMCR, 0);
+ DELAY(1000);
+ ktcr = PHY_READ(mii, BRGPHY_MII_1000CTL);
+ PHY_WRITE(mii, BRGPHY_MII_1000CTL, ktcr |
+ BRGPHY_1000CTL_AFD|BRGPHY_1000CTL_AHD);
+ ktcr = PHY_READ(mii, BRGPHY_MII_1000CTL);
+ DELAY(1000);
+ PHY_WRITE(mii, BRGPHY_MII_ANAR,
+ BMSR_MEDIA_TO_ANAR(mii->mii_capabilities) | ANAR_CSMA);
+ DELAY(1000);
+ PHY_WRITE(mii, BRGPHY_MII_BMCR,
+ BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
+ PHY_WRITE(mii, BRGPHY_MII_IMR, 0xFF00);
+ return (EJUSTRETURN);
+}
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