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tlphy.c revision 1.7
      1  1.7   thorpej /*	$NetBSD: tlphy.c,v 1.7 1998/08/10 23:59:58 thorpej Exp $	*/
      2  1.7   thorpej 
      3  1.7   thorpej /*-
      4  1.7   thorpej  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  1.7   thorpej  * All rights reserved.
      6  1.7   thorpej  *
      7  1.7   thorpej  * This code is derived from software contributed to The NetBSD Foundation
      8  1.7   thorpej  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9  1.7   thorpej  * NASA Ames Research Center.
     10  1.7   thorpej  *
     11  1.7   thorpej  * Redistribution and use in source and binary forms, with or without
     12  1.7   thorpej  * modification, are permitted provided that the following conditions
     13  1.7   thorpej  * are met:
     14  1.7   thorpej  * 1. Redistributions of source code must retain the above copyright
     15  1.7   thorpej  *    notice, this list of conditions and the following disclaimer.
     16  1.7   thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     17  1.7   thorpej  *    notice, this list of conditions and the following disclaimer in the
     18  1.7   thorpej  *    documentation and/or other materials provided with the distribution.
     19  1.7   thorpej  * 3. All advertising materials mentioning features or use of this software
     20  1.7   thorpej  *    must display the following acknowledgement:
     21  1.7   thorpej  *	This product includes software developed by the NetBSD
     22  1.7   thorpej  *	Foundation, Inc. and its contributors.
     23  1.7   thorpej  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  1.7   thorpej  *    contributors may be used to endorse or promote products derived
     25  1.7   thorpej  *    from this software without specific prior written permission.
     26  1.7   thorpej  *
     27  1.7   thorpej  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  1.7   thorpej  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  1.7   thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  1.7   thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  1.7   thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  1.7   thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  1.7   thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  1.7   thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  1.7   thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  1.7   thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  1.7   thorpej  * POSSIBILITY OF SUCH DAMAGE.
     38  1.7   thorpej  */
     39  1.7   thorpej 
     40  1.1    bouyer /*
     41  1.1    bouyer  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
     42  1.1    bouyer  *
     43  1.1    bouyer  * Redistribution and use in source and binary forms, with or without
     44  1.1    bouyer  * modification, are permitted provided that the following conditions
     45  1.1    bouyer  * are met:
     46  1.1    bouyer  * 1. Redistributions of source code must retain the above copyright
     47  1.1    bouyer  *    notice, this list of conditions and the following disclaimer.
     48  1.1    bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     49  1.1    bouyer  *    notice, this list of conditions and the following disclaimer in the
     50  1.1    bouyer  *    documentation and/or other materials provided with the distribution.
     51  1.1    bouyer  * 3. All advertising materials mentioning features or use of this software
     52  1.1    bouyer  *    must display the following acknowledgement:
     53  1.4   thorpej  *	This product includes software developed by Manuel Bouyer.
     54  1.1    bouyer  * 4. The name of the author may not be used to endorse or promote products
     55  1.1    bouyer  *    derived from this software without specific prior written permission.
     56  1.1    bouyer  *
     57  1.1    bouyer  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     58  1.1    bouyer  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     59  1.1    bouyer  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     60  1.1    bouyer  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     61  1.1    bouyer  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     62  1.1    bouyer  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     63  1.1    bouyer  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     64  1.1    bouyer  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     65  1.1    bouyer  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     66  1.1    bouyer  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     67  1.1    bouyer  */
     68  1.1    bouyer 
     69  1.7   thorpej /*
     70  1.7   thorpej  * Driver for Texas Instruments's ThunderLAN PHYs
     71  1.7   thorpej  */
     72  1.1    bouyer 
     73  1.1    bouyer #include <sys/param.h>
     74  1.1    bouyer #include <sys/systm.h>
     75  1.1    bouyer #include <sys/kernel.h>
     76  1.1    bouyer #include <sys/device.h>
     77  1.1    bouyer #include <sys/socket.h>
     78  1.7   thorpej 
     79  1.7   thorpej #include <machine/bus.h>
     80  1.7   thorpej 
     81  1.1    bouyer #include <net/if.h>
     82  1.1    bouyer #include <net/if_media.h>
     83  1.1    bouyer 
     84  1.7   thorpej #include <net/if_ether.h>
     85  1.1    bouyer 
     86  1.7   thorpej #include <dev/mii/mii.h>
     87  1.7   thorpej #include <dev/mii/miivar.h>
     88  1.7   thorpej #include <dev/mii/miidevs.h>
     89  1.7   thorpej 
     90  1.7   thorpej #include <dev/i2c/i2c_bus.h>
     91  1.7   thorpej 
     92  1.7   thorpej #include <dev/mii/tlphyreg.h>
     93  1.7   thorpej #include <dev/mii/tlphyvar.h>
     94  1.7   thorpej 
     95  1.7   thorpej /* ThunderLAN PHY can only be on a ThunderLAN */
     96  1.7   thorpej #include <dev/pci/if_tlvar.h>
     97  1.7   thorpej 
     98  1.7   thorpej struct tlphy_softc {
     99  1.7   thorpej 	struct mii_softc sc_mii;		/* generic PHY */
    100  1.7   thorpej 	int sc_capabilities;
    101  1.7   thorpej 	int sc_ticks;
    102  1.7   thorpej 	int sc_tlphycap;
    103  1.7   thorpej 	int sc_active;
    104  1.7   thorpej };
    105  1.1    bouyer 
    106  1.4   thorpej int	tlphymatch __P((struct device *, struct cfdata *, void *));
    107  1.4   thorpej void	tlphyattach __P((struct device *, struct device *, void *));
    108  1.1    bouyer 
    109  1.1    bouyer struct cfattach tlphy_ca = {
    110  1.7   thorpej 	sizeof(struct tlphy_softc), tlphymatch, tlphyattach
    111  1.1    bouyer };
    112  1.1    bouyer 
    113  1.7   thorpej #define	TLPHY_READ(sc, reg) \
    114  1.7   thorpej     (*(sc)->sc_mii.mii_pdata->mii_readreg)((sc)->sc_mii.mii_dev.dv_parent, \
    115  1.7   thorpej 	(sc)->sc_mii.mii_phy, (reg))
    116  1.7   thorpej 
    117  1.7   thorpej #define	TLPHY_WRITE(sc, reg, val) \
    118  1.7   thorpej     (*(sc)->sc_mii.mii_pdata->mii_writereg)((sc)->sc_mii.mii_dev.dv_parent, \
    119  1.7   thorpej 	(sc)->sc_mii.mii_phy, (reg), (val))
    120  1.7   thorpej 
    121  1.7   thorpej int	tlphy_service __P((struct mii_softc *, struct mii_data *, int));
    122  1.7   thorpej void	tlphy_reset __P((struct tlphy_softc *));
    123  1.7   thorpej void	tlphy_auto __P((struct tlphy_softc *));
    124  1.7   thorpej void	tlphy_status __P((struct tlphy_softc *));
    125  1.7   thorpej 
    126  1.1    bouyer int
    127  1.1    bouyer tlphymatch(parent, match, aux)
    128  1.4   thorpej 	struct device *parent;
    129  1.1    bouyer 	struct cfdata *match;
    130  1.1    bouyer 	void *aux;
    131  1.1    bouyer {
    132  1.7   thorpej 	struct mii_attach_args *ma = aux;
    133  1.1    bouyer 
    134  1.7   thorpej 	if (MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_TI &&
    135  1.7   thorpej 	    MII_MODEL(ma->mii_id2) == MII_MODEL_TI_TLAN10T)
    136  1.4   thorpej 		return (1);
    137  1.7   thorpej 
    138  1.4   thorpej 	return (0);
    139  1.1    bouyer }
    140  1.1    bouyer 
    141  1.1    bouyer void
    142  1.1    bouyer tlphyattach(parent, self, aux)
    143  1.4   thorpej 	struct device *parent, *self;
    144  1.1    bouyer 	void *aux;
    145  1.1    bouyer {
    146  1.7   thorpej 	struct tlphy_softc *sc = (struct tlphy_softc *)self;
    147  1.7   thorpej 	struct tl_softc *tlsc = (struct tl_softc *)self->dv_parent;
    148  1.7   thorpej 	struct mii_attach_args *ma = aux;
    149  1.7   thorpej 	struct mii_data *mii = ma->mii_data;
    150  1.7   thorpej 	const char *sep = "";
    151  1.7   thorpej 
    152  1.7   thorpej 	printf(": %s, rev. %d\n", MII_STR_TI_TLAN10T,
    153  1.7   thorpej 	    MII_REV(ma->mii_id2));
    154  1.7   thorpej 
    155  1.7   thorpej 	sc->sc_mii.mii_inst = mii->mii_instance;
    156  1.7   thorpej 	sc->sc_mii.mii_phy = ma->mii_phyno;
    157  1.7   thorpej 	sc->sc_mii.mii_service = tlphy_service;
    158  1.7   thorpej 	sc->sc_mii.mii_pdata = mii;
    159  1.7   thorpej 
    160  1.7   thorpej 	tlphy_reset(sc);
    161  1.7   thorpej 
    162  1.7   thorpej 	/*
    163  1.7   thorpej 	 * Note that if we're on a device that also supports 100baseTX,
    164  1.7   thorpej 	 * we are not going to want to use the built-in 10baseT port,
    165  1.7   thorpej 	 * since there will be another PHY on the MII wired up to the
    166  1.7   thorpej 	 * UTP connector.  The parent indicates this to us by specifying
    167  1.7   thorpej 	 * the TLPHY_MEDIA_NO_10_T bit.
    168  1.7   thorpej 	 */
    169  1.7   thorpej 	sc->sc_tlphycap = tlsc->tl_product->tp_tlphymedia;
    170  1.7   thorpej 	if ((sc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0)
    171  1.7   thorpej 		sc->sc_capabilities =
    172  1.7   thorpej 		    TLPHY_READ(sc, MII_BMSR) & ma->mii_capmask;
    173  1.7   thorpej 	else
    174  1.7   thorpej 		sc->sc_capabilities = 0;
    175  1.7   thorpej 
    176  1.7   thorpej #define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)
    177  1.7   thorpej 
    178  1.7   thorpej 	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->sc_mii.mii_inst),
    179  1.7   thorpej 	    BMCR_ISO);
    180  1.7   thorpej 
    181  1.7   thorpej 	if ((sc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0)
    182  1.7   thorpej 		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_LOOP,
    183  1.7   thorpej 		    sc->sc_mii.mii_inst), BMCR_LOOP);
    184  1.7   thorpej 
    185  1.7   thorpej #define	PRINT(s)	printf("%s%s", sep, s); sep = ", "
    186  1.7   thorpej 
    187  1.7   thorpej 	printf("%s: ", sc->sc_mii.mii_dev.dv_xname);
    188  1.7   thorpej 	if (sc->sc_tlphycap) {
    189  1.7   thorpej 		if (sc->sc_tlphycap == TLPHY_MEDIA_10_2) {
    190  1.7   thorpej 			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0,
    191  1.7   thorpej 			    sc->sc_mii.mii_inst), 0);
    192  1.7   thorpej 			PRINT("10base2/BNC");
    193  1.7   thorpej 		} else {
    194  1.7   thorpej 			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0,
    195  1.7   thorpej 			    sc->sc_mii.mii_inst), 0);
    196  1.7   thorpej 			PRINT("10base5/AUI");
    197  1.7   thorpej 		}
    198  1.7   thorpej 	}
    199  1.7   thorpej 	if (sc->sc_capabilities & BMSR_MEDIAMASK) {
    200  1.7   thorpej 		printf(sep);
    201  1.7   thorpej 		mii_add_media(mii, sc->sc_capabilities, sc->sc_mii.mii_inst);
    202  1.7   thorpej 	} else if (sc->sc_tlphycap == 0)
    203  1.7   thorpej 		printf("no media present");
    204  1.7   thorpej 	printf("\n");
    205  1.7   thorpej #undef ADD
    206  1.7   thorpej #undef PRINT
    207  1.7   thorpej }
    208  1.7   thorpej 
    209  1.7   thorpej int
    210  1.7   thorpej tlphy_service(self, mii, cmd)
    211  1.7   thorpej 	struct mii_softc *self;
    212  1.7   thorpej 	struct mii_data *mii;
    213  1.7   thorpej 	int cmd;
    214  1.7   thorpej {
    215  1.7   thorpej 	struct tlphy_softc *sc = (struct tlphy_softc *)self;
    216  1.7   thorpej 	int reg;
    217  1.1    bouyer 
    218  1.7   thorpej 	switch (cmd) {
    219  1.7   thorpej 	case MII_POLLSTAT:
    220  1.7   thorpej 		/*
    221  1.7   thorpej 		 * If we're not polling our PHY instance, just return.
    222  1.7   thorpej 		 */
    223  1.7   thorpej 		if (IFM_INST(mii->mii_media.ifm_media) !=
    224  1.7   thorpej 		    sc->sc_mii.mii_inst)
    225  1.7   thorpej 			return (0);
    226  1.1    bouyer 		break;
    227  1.7   thorpej 
    228  1.7   thorpej 	case MII_MEDIACHG:
    229  1.7   thorpej 		/*
    230  1.7   thorpej 		 * If the media indicates a different PHY instance,
    231  1.7   thorpej 		 * isolate ourselves.
    232  1.7   thorpej 		 */
    233  1.7   thorpej 		if (IFM_INST(mii->mii_media.ifm_media) !=
    234  1.7   thorpej 		    sc->sc_mii.mii_inst) {
    235  1.7   thorpej 			reg = TLPHY_READ(sc, MII_BMCR);
    236  1.7   thorpej 			TLPHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
    237  1.7   thorpej 			return (0);
    238  1.7   thorpej 		}
    239  1.7   thorpej 
    240  1.7   thorpej 		/*
    241  1.7   thorpej 		 * If the interface is not up, don't do anything.
    242  1.7   thorpej 		 */
    243  1.7   thorpej 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
    244  1.7   thorpej 			break;
    245  1.7   thorpej 
    246  1.7   thorpej 		switch (IFM_SUBTYPE(mii->mii_media.ifm_media)) {
    247  1.7   thorpej 		case IFM_AUTO:
    248  1.7   thorpej 			/*
    249  1.7   thorpej 			 * The ThunderLAN PHY doesn't self-configure after
    250  1.7   thorpej 			 * an autonegotiation cycle, so there's no such
    251  1.7   thorpej 			 * thing as "already in auto mode".
    252  1.7   thorpej 			 */
    253  1.7   thorpej 			tlphy_auto(sc);
    254  1.7   thorpej 			break;
    255  1.7   thorpej 		case IFM_10_2:
    256  1.7   thorpej 		case IFM_10_5:
    257  1.7   thorpej 			TLPHY_WRITE(sc, MII_BMCR, 0);
    258  1.7   thorpej 			TLPHY_WRITE(sc, MII_TLPHY_CTRL, CTRL_AUISEL);
    259  1.7   thorpej 			delay(100000);
    260  1.7   thorpej 			break;
    261  1.7   thorpej 		default:
    262  1.7   thorpej 			TLPHY_WRITE(sc, MII_TLPHY_CTRL, 0);
    263  1.7   thorpej 			delay(100000);
    264  1.7   thorpej 			TLPHY_WRITE(sc, MII_ANAR,
    265  1.7   thorpej 			    mii_anar(mii->mii_media.ifm_media));
    266  1.7   thorpej 			TLPHY_WRITE(sc, MII_BMCR,
    267  1.7   thorpej 			    mii->mii_media.ifm_cur->ifm_data);
    268  1.7   thorpej 		}
    269  1.1    bouyer 		break;
    270  1.7   thorpej 
    271  1.7   thorpej 	case MII_TICK:
    272  1.7   thorpej 		/*
    273  1.7   thorpej 		 * If we're not currently selected, just return.
    274  1.7   thorpej 		 */
    275  1.7   thorpej 		if (IFM_INST(mii->mii_media.ifm_media) !=
    276  1.7   thorpej 		    sc->sc_mii.mii_inst)
    277  1.7   thorpej 			return (0);
    278  1.7   thorpej 
    279  1.7   thorpej 		/*
    280  1.7   thorpej 		 * Only used for autonegotiation.
    281  1.7   thorpej 		 */
    282  1.7   thorpej 		if (IFM_SUBTYPE(mii->mii_media.ifm_media) != IFM_AUTO)
    283  1.7   thorpej 			return (0);
    284  1.7   thorpej 
    285  1.7   thorpej 		/*
    286  1.7   thorpej 		 * Is the interface even up?
    287  1.7   thorpej 		 */
    288  1.7   thorpej 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
    289  1.7   thorpej 			return (0);
    290  1.7   thorpej 
    291  1.7   thorpej 		/*
    292  1.7   thorpej 		 * Check to see if we have link.  If we do, we don't
    293  1.7   thorpej 		 * need to restart the autonegotiation process.  Read
    294  1.7   thorpej 		 * the BMSR twice in case it's latched.
    295  1.7   thorpej 		 *
    296  1.7   thorpej 		 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?!
    297  1.7   thorpej 		 */
    298  1.7   thorpej 		reg = TLPHY_READ(sc, MII_BMSR) | TLPHY_READ(sc, MII_BMSR);
    299  1.7   thorpej 		if (reg & BMSR_LINK)
    300  1.7   thorpej 			return (0);
    301  1.7   thorpej 
    302  1.7   thorpej 		/*
    303  1.7   thorpej 		 * Only retry autonegotiation every 5 seconds.
    304  1.7   thorpej 		 */
    305  1.7   thorpej 		if (++sc->sc_ticks != 5)
    306  1.7   thorpej 			return (0);
    307  1.7   thorpej 
    308  1.7   thorpej 		sc->sc_ticks = 0;
    309  1.7   thorpej 		tlphy_reset(sc);
    310  1.7   thorpej 		tlphy_auto(sc);
    311  1.3  christos 		break;
    312  1.1    bouyer 	}
    313  1.1    bouyer 
    314  1.7   thorpej 	/* Update the media status. */
    315  1.7   thorpej 	tlphy_status(sc);
    316  1.7   thorpej 
    317  1.7   thorpej 	/* Callback if something changed. */
    318  1.7   thorpej 	if (sc->sc_active != mii->mii_media_active || cmd == MII_MEDIACHG) {
    319  1.7   thorpej 		(*mii->mii_statchg)(sc->sc_mii.mii_dev.dv_parent);
    320  1.7   thorpej 		sc->sc_active = mii->mii_media_active;
    321  1.1    bouyer 	}
    322  1.7   thorpej 	return (0);
    323  1.1    bouyer }
    324  1.1    bouyer 
    325  1.4   thorpej void
    326  1.7   thorpej tlphy_status(sc)
    327  1.7   thorpej 	struct tlphy_softc *sc;
    328  1.1    bouyer {
    329  1.7   thorpej 	struct mii_data *mii = sc->sc_mii.mii_pdata;
    330  1.7   thorpej 	int bmsr, bmcr, tlctrl;
    331  1.4   thorpej 
    332  1.7   thorpej 	mii->mii_media_status = IFM_AVALID;
    333  1.7   thorpej 	mii->mii_media_active = IFM_ETHER;
    334  1.1    bouyer 
    335  1.7   thorpej 	bmsr = TLPHY_READ(sc, MII_BMSR) | TLPHY_READ(sc, MII_BMSR);
    336  1.7   thorpej 	if (bmsr & BMSR_LINK)
    337  1.7   thorpej 		mii->mii_media_status |= IFM_ACTIVE;
    338  1.7   thorpej 
    339  1.7   thorpej 	bmcr = TLPHY_READ(sc, MII_BMCR);
    340  1.7   thorpej 	if (bmcr & BMCR_ISO) {
    341  1.7   thorpej 		mii->mii_media_active |= IFM_NONE;
    342  1.7   thorpej 		mii->mii_media_status = 0;
    343  1.7   thorpej 		return;
    344  1.1    bouyer 	}
    345  1.1    bouyer 
    346  1.7   thorpej 	tlctrl = TLPHY_READ(sc, MII_TLPHY_CTRL);
    347  1.7   thorpej 	if (tlctrl & CTRL_AUISEL) {
    348  1.7   thorpej 		if (sc->sc_tlphycap == TLPHY_MEDIA_10_2)
    349  1.7   thorpej 			mii->mii_media_status |= IFM_10_2;
    350  1.1    bouyer 		else
    351  1.7   thorpej 			mii->mii_media_status |= IFM_10_5;
    352  1.7   thorpej 		/* XXX Can we sense carrier here? */
    353  1.7   thorpej 		mii->mii_media_status = 0;
    354  1.7   thorpej 		return;
    355  1.1    bouyer 	}
    356  1.7   thorpej 
    357  1.7   thorpej 	if (bmcr & BMCR_LOOP)
    358  1.7   thorpej 		mii->mii_media_active |= IFM_LOOP;
    359  1.7   thorpej 
    360  1.7   thorpej 	/*
    361  1.7   thorpej 	 * Grr, braindead ThunderLAN PHY doesn't have any way to
    362  1.7   thorpej 	 * tell which media is actually active.  (Note it also
    363  1.7   thorpej 	 * doesn't self-configure after autonegotiation.)  We
    364  1.7   thorpej 	 * just have to report what's in the BMCR.
    365  1.7   thorpej 	 */
    366  1.7   thorpej 	if (bmcr & BMCR_FDX)
    367  1.7   thorpej 		mii->mii_media_active |= IFM_FDX;
    368  1.7   thorpej 	mii->mii_media_active |= IFM_10_T;
    369  1.1    bouyer }
    370  1.1    bouyer 
    371  1.7   thorpej void
    372  1.7   thorpej tlphy_auto(sc)
    373  1.7   thorpej 	struct tlphy_softc *sc;
    374  1.1    bouyer {
    375  1.7   thorpej 	int aner, anlpar, bmsr, i;
    376  1.1    bouyer 
    377  1.7   thorpej 	TLPHY_WRITE(sc, MII_ANAR,
    378  1.7   thorpej 	    BMSR_MEDIA_TO_ANAR(sc->sc_capabilities) | ANAR_CSMA);
    379  1.7   thorpej 	TLPHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG);
    380  1.7   thorpej 
    381  1.7   thorpej 	/* Wait 500ms for it to complete. */
    382  1.7   thorpej 	for (i = 0; i < 500; i++) {
    383  1.7   thorpej 		if ((bmsr = TLPHY_READ(sc, MII_BMSR)) & BMSR_ACOMP)
    384  1.7   thorpej 			return;
    385  1.7   thorpej 		delay(1000);
    386  1.7   thorpej 	}
    387  1.7   thorpej 	if ((bmsr & BMSR_ACOMP) == 0) {
    388  1.7   thorpej 		printf("%s: autonegotiation failed to complete\n",
    389  1.7   thorpej 		    sc->sc_mii.mii_dev.dv_xname);
    390  1.7   thorpej 		return;
    391  1.7   thorpej 	}
    392  1.7   thorpej 
    393  1.7   thorpej 	/*
    394  1.7   thorpej 	 * Grr, braindead ThunderLAN PHY doesn't self-configure
    395  1.7   thorpej 	 * after autonegotiation.  We have to do it ourselves
    396  1.7   thorpej 	 * based on the link partner status.
    397  1.7   thorpej 	 */
    398  1.7   thorpej 
    399  1.7   thorpej 	aner = TLPHY_READ(sc, MII_ANER);
    400  1.7   thorpej 	if (aner & ANER_LPAN) {
    401  1.7   thorpej 		anlpar = TLPHY_READ(sc, MII_ANLPAR) &
    402  1.7   thorpej 		    TLPHY_READ(sc, MII_ANAR);
    403  1.7   thorpej 		if (anlpar & ANAR_10_FD) {
    404  1.7   thorpej 			TLPHY_WRITE(sc, MII_BMCR, BMCR_FDX);
    405  1.7   thorpej 			return;
    406  1.7   thorpej 		}
    407  1.7   thorpej 	}
    408  1.7   thorpej 
    409  1.7   thorpej 	/*
    410  1.7   thorpej 	 * Just assume we're not in full-duplex mode.
    411  1.7   thorpej 	 * XXX Check link and try AUI/BNC?
    412  1.7   thorpej 	 */
    413  1.7   thorpej 	TLPHY_WRITE(sc, MII_BMCR, 0);
    414  1.1    bouyer }
    415  1.1    bouyer 
    416  1.7   thorpej void
    417  1.7   thorpej tlphy_reset(sc)
    418  1.7   thorpej 	struct tlphy_softc *sc;
    419  1.1    bouyer {
    420  1.7   thorpej 	int reg, i;
    421  1.7   thorpej 
    422  1.7   thorpej 	TLPHY_WRITE(sc, MII_BMCR, BMCR_RESET|BMCR_ISO);
    423  1.7   thorpej 
    424  1.7   thorpej 	/* Wait 100ms for it to complete. */
    425  1.7   thorpej 	for (i = 0; i < 100; i++) {
    426  1.7   thorpej 		reg = TLPHY_READ(sc, MII_BMCR);
    427  1.7   thorpej 		if ((reg & BMCR_RESET) == 0)
    428  1.7   thorpej 			break;
    429  1.7   thorpej 		delay(1000);
    430  1.7   thorpej 	}
    431  1.7   thorpej 
    432  1.7   thorpej 	/* Make sure the PHY is isolated. */
    433  1.7   thorpej 	if (sc->sc_mii.mii_inst != 0)
    434  1.7   thorpej 		TLPHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
    435  1.1    bouyer }
    436