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tlphy.c revision 1.37
      1  1.37   thorpej /*	$NetBSD: tlphy.c,v 1.37 2002/10/02 16:34:21 thorpej Exp $	*/
      2   1.7   thorpej 
      3   1.7   thorpej /*-
      4  1.26   thorpej  * Copyright (c) 1998, 1999, 2000 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  1.33     lukem 
     73  1.33     lukem #include <sys/cdefs.h>
     74  1.37   thorpej __KERNEL_RCSID(0, "$NetBSD: tlphy.c,v 1.37 2002/10/02 16:34:21 thorpej Exp $");
     75   1.1    bouyer 
     76   1.1    bouyer #include <sys/param.h>
     77   1.1    bouyer #include <sys/systm.h>
     78   1.1    bouyer #include <sys/kernel.h>
     79   1.1    bouyer #include <sys/device.h>
     80   1.1    bouyer #include <sys/socket.h>
     81  1.17   thorpej #include <sys/errno.h>
     82   1.7   thorpej 
     83   1.7   thorpej #include <machine/bus.h>
     84   1.7   thorpej 
     85   1.1    bouyer #include <net/if.h>
     86   1.1    bouyer #include <net/if_media.h>
     87   1.1    bouyer 
     88   1.7   thorpej #include <net/if_ether.h>
     89   1.1    bouyer 
     90   1.7   thorpej #include <dev/mii/mii.h>
     91   1.7   thorpej #include <dev/mii/miivar.h>
     92   1.7   thorpej #include <dev/mii/miidevs.h>
     93   1.7   thorpej 
     94   1.7   thorpej #include <dev/i2c/i2c_bus.h>
     95   1.7   thorpej 
     96   1.7   thorpej #include <dev/mii/tlphyreg.h>
     97   1.7   thorpej #include <dev/mii/tlphyvar.h>
     98   1.7   thorpej 
     99   1.7   thorpej /* ThunderLAN PHY can only be on a ThunderLAN */
    100   1.7   thorpej #include <dev/pci/if_tlvar.h>
    101   1.7   thorpej 
    102   1.7   thorpej struct tlphy_softc {
    103   1.7   thorpej 	struct mii_softc sc_mii;		/* generic PHY */
    104   1.7   thorpej 	int sc_tlphycap;
    105  1.17   thorpej 	int sc_need_acomp;
    106   1.7   thorpej };
    107   1.1    bouyer 
    108  1.32   thorpej int	tlphymatch(struct device *, struct cfdata *, void *);
    109  1.32   thorpej void	tlphyattach(struct device *, struct device *, void *);
    110   1.1    bouyer 
    111  1.36   thorpej CFATTACH_DECL(tlphy, sizeof(struct tlphy_softc),
    112  1.37   thorpej     tlphymatch, tlphyattach, mii_phy_detach, mii_phy_activate);
    113   1.1    bouyer 
    114  1.32   thorpej int	tlphy_service(struct mii_softc *, struct mii_data *, int);
    115  1.32   thorpej int	tlphy_auto(struct tlphy_softc *, int);
    116  1.32   thorpej void	tlphy_acomp(struct tlphy_softc *);
    117  1.32   thorpej void	tlphy_status(struct mii_softc *);
    118   1.7   thorpej 
    119  1.26   thorpej const struct mii_phy_funcs tlphy_funcs = {
    120  1.26   thorpej 	tlphy_service, tlphy_status, mii_phy_reset,
    121  1.26   thorpej };
    122  1.26   thorpej 
    123  1.30   thorpej const struct mii_phydesc tlphys[] = {
    124  1.30   thorpej 	{ MII_OUI_TI,		MII_MODEL_TI_TLAN10T,
    125  1.30   thorpej 	  MII_STR_TI_TLAN10T },
    126  1.30   thorpej 
    127  1.30   thorpej 	{ 0,			0,
    128  1.30   thorpej 	  NULL },
    129  1.30   thorpej };
    130  1.30   thorpej 
    131   1.1    bouyer int
    132  1.32   thorpej tlphymatch(struct device *parent, struct cfdata *match, void *aux)
    133   1.1    bouyer {
    134   1.7   thorpej 	struct mii_attach_args *ma = aux;
    135   1.1    bouyer 
    136  1.30   thorpej 	if (mii_phy_match(ma, tlphys) != NULL)
    137  1.15   thorpej 		return (10);
    138   1.7   thorpej 
    139   1.4   thorpej 	return (0);
    140   1.1    bouyer }
    141   1.1    bouyer 
    142   1.1    bouyer void
    143  1.32   thorpej tlphyattach(struct device *parent, struct device *self, void *aux)
    144   1.1    bouyer {
    145   1.7   thorpej 	struct tlphy_softc *sc = (struct tlphy_softc *)self;
    146   1.7   thorpej 	struct tl_softc *tlsc = (struct tl_softc *)self->dv_parent;
    147   1.7   thorpej 	struct mii_attach_args *ma = aux;
    148   1.7   thorpej 	struct mii_data *mii = ma->mii_data;
    149  1.30   thorpej 	const struct mii_phydesc *mpd;
    150   1.7   thorpej 	const char *sep = "";
    151   1.7   thorpej 
    152  1.30   thorpej 	mpd = mii_phy_match(ma, tlphys);
    153  1.30   thorpej 	printf(": %s, rev. %d\n", mpd->mpd_name, 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  1.26   thorpej 	sc->sc_mii.mii_funcs = &tlphy_funcs;
    158   1.7   thorpej 	sc->sc_mii.mii_pdata = mii;
    159  1.34   thorpej 	sc->sc_mii.mii_flags = ma->mii_flags;
    160  1.29   thorpej 	sc->sc_mii.mii_anegticks = 5;
    161   1.7   thorpej 
    162  1.26   thorpej 	PHY_RESET(&sc->sc_mii);
    163   1.7   thorpej 
    164   1.7   thorpej 	/*
    165   1.7   thorpej 	 * Note that if we're on a device that also supports 100baseTX,
    166   1.7   thorpej 	 * we are not going to want to use the built-in 10baseT port,
    167   1.7   thorpej 	 * since there will be another PHY on the MII wired up to the
    168   1.7   thorpej 	 * UTP connector.  The parent indicates this to us by specifying
    169   1.7   thorpej 	 * the TLPHY_MEDIA_NO_10_T bit.
    170   1.7   thorpej 	 */
    171   1.7   thorpej 	sc->sc_tlphycap = tlsc->tl_product->tp_tlphymedia;
    172   1.7   thorpej 	if ((sc->sc_tlphycap & TLPHY_MEDIA_NO_10_T) == 0)
    173  1.13   thorpej 		sc->sc_mii.mii_capabilities =
    174  1.12   thorpej 		    PHY_READ(&sc->sc_mii, MII_BMSR) & ma->mii_capmask;
    175   1.7   thorpej 	else
    176  1.13   thorpej 		sc->sc_mii.mii_capabilities = 0;
    177   1.7   thorpej 
    178  1.19   thorpej 
    179   1.7   thorpej #define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)
    180   1.7   thorpej #define	PRINT(s)	printf("%s%s", sep, s); sep = ", "
    181   1.7   thorpej 
    182   1.7   thorpej 	printf("%s: ", sc->sc_mii.mii_dev.dv_xname);
    183   1.7   thorpej 	if (sc->sc_tlphycap) {
    184  1.10    bouyer 		if (sc->sc_tlphycap & TLPHY_MEDIA_10_2) {
    185   1.7   thorpej 			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_2, 0,
    186   1.7   thorpej 			    sc->sc_mii.mii_inst), 0);
    187  1.19   thorpej 			PRINT("10base2");
    188  1.10    bouyer 		} else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5) {
    189   1.7   thorpej 			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0,
    190   1.7   thorpej 			    sc->sc_mii.mii_inst), 0);
    191  1.19   thorpej 			PRINT("10base5");
    192   1.7   thorpej 		}
    193   1.7   thorpej 	}
    194  1.13   thorpej 	if (sc->sc_mii.mii_capabilities & BMSR_MEDIAMASK) {
    195  1.27  sommerfe 		printf("%s", sep);
    196  1.22   thorpej 		mii_phy_add_media(&sc->sc_mii);
    197  1.19   thorpej 	} else if ((sc->sc_tlphycap &
    198  1.19   thorpej 		    (TLPHY_MEDIA_10_2 | TLPHY_MEDIA_10_5)) == 0)
    199   1.7   thorpej 		printf("no media present");
    200   1.7   thorpej 	printf("\n");
    201   1.7   thorpej #undef ADD
    202   1.7   thorpej #undef PRINT
    203   1.7   thorpej }
    204   1.7   thorpej 
    205   1.7   thorpej int
    206  1.32   thorpej tlphy_service(struct mii_softc *self, struct mii_data *mii, int cmd)
    207   1.7   thorpej {
    208   1.7   thorpej 	struct tlphy_softc *sc = (struct tlphy_softc *)self;
    209  1.11   thorpej 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
    210   1.7   thorpej 	int reg;
    211  1.21   thorpej 
    212  1.21   thorpej 	if ((sc->sc_mii.mii_dev.dv_flags & DVF_ACTIVE) == 0)
    213  1.21   thorpej 		return (ENXIO);
    214   1.1    bouyer 
    215  1.17   thorpej 	if ((sc->sc_mii.mii_flags & MIIF_DOINGAUTO) == 0 && sc->sc_need_acomp)
    216  1.17   thorpej 		tlphy_acomp(sc);
    217  1.17   thorpej 
    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  1.11   thorpej 		if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
    224   1.7   thorpej 			return (0);
    225   1.1    bouyer 		break;
    226   1.7   thorpej 
    227   1.7   thorpej 	case MII_MEDIACHG:
    228   1.7   thorpej 		/*
    229   1.7   thorpej 		 * If the media indicates a different PHY instance,
    230   1.7   thorpej 		 * isolate ourselves.
    231   1.7   thorpej 		 */
    232  1.11   thorpej 		if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst) {
    233  1.12   thorpej 			reg = PHY_READ(&sc->sc_mii, MII_BMCR);
    234  1.12   thorpej 			PHY_WRITE(&sc->sc_mii, MII_BMCR, reg | BMCR_ISO);
    235   1.7   thorpej 			return (0);
    236   1.7   thorpej 		}
    237   1.7   thorpej 
    238   1.7   thorpej 		/*
    239   1.7   thorpej 		 * If the interface is not up, don't do anything.
    240   1.7   thorpej 		 */
    241   1.7   thorpej 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
    242   1.7   thorpej 			break;
    243   1.7   thorpej 
    244  1.11   thorpej 		switch (IFM_SUBTYPE(ife->ifm_media)) {
    245   1.7   thorpej 		case IFM_AUTO:
    246   1.7   thorpej 			/*
    247   1.7   thorpej 			 * The ThunderLAN PHY doesn't self-configure after
    248   1.7   thorpej 			 * an autonegotiation cycle, so there's no such
    249   1.7   thorpej 			 * thing as "already in auto mode".
    250   1.7   thorpej 			 */
    251  1.17   thorpej 			(void) tlphy_auto(sc, 1);
    252   1.7   thorpej 			break;
    253   1.7   thorpej 		case IFM_10_2:
    254   1.7   thorpej 		case IFM_10_5:
    255  1.12   thorpej 			PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
    256  1.12   thorpej 			PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, CTRL_AUISEL);
    257   1.7   thorpej 			delay(100000);
    258   1.7   thorpej 			break;
    259   1.7   thorpej 		default:
    260  1.12   thorpej 			PHY_WRITE(&sc->sc_mii, MII_TLPHY_CTRL, 0);
    261   1.7   thorpej 			delay(100000);
    262  1.19   thorpej 			mii_phy_setmedia(&sc->sc_mii);
    263   1.7   thorpej 		}
    264   1.1    bouyer 		break;
    265   1.7   thorpej 
    266   1.7   thorpej 	case MII_TICK:
    267   1.7   thorpej 		/*
    268   1.7   thorpej 		 * If we're not currently selected, just return.
    269   1.7   thorpej 		 */
    270  1.11   thorpej 		if (IFM_INST(ife->ifm_media) != sc->sc_mii.mii_inst)
    271   1.7   thorpej 			return (0);
    272   1.7   thorpej 
    273   1.7   thorpej 		/*
    274   1.7   thorpej 		 * Only used for autonegotiation.
    275   1.7   thorpej 		 */
    276  1.11   thorpej 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
    277   1.7   thorpej 			return (0);
    278   1.7   thorpej 
    279   1.7   thorpej 		/*
    280   1.7   thorpej 		 * Is the interface even up?
    281   1.7   thorpej 		 */
    282   1.7   thorpej 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
    283   1.7   thorpej 			return (0);
    284   1.7   thorpej 
    285   1.7   thorpej 		/*
    286   1.7   thorpej 		 * XXX WHAT ABOUT CHECKING LINK ON THE BNC/AUI?!
    287   1.7   thorpej 		 */
    288   1.7   thorpej 
    289  1.25   thorpej 		if (mii_phy_tick(&sc->sc_mii) == EJUSTRETURN)
    290  1.17   thorpej 			return (0);
    291   1.3  christos 		break;
    292  1.20   thorpej 
    293  1.20   thorpej 	case MII_DOWN:
    294  1.20   thorpej 		mii_phy_down(&sc->sc_mii);
    295  1.20   thorpej 		return (0);
    296   1.1    bouyer 	}
    297   1.1    bouyer 
    298   1.7   thorpej 	/* Update the media status. */
    299  1.24   thorpej 	mii_phy_status(&sc->sc_mii);
    300   1.7   thorpej 
    301   1.7   thorpej 	/* Callback if something changed. */
    302  1.25   thorpej 	mii_phy_update(&sc->sc_mii, cmd);
    303   1.7   thorpej 	return (0);
    304   1.1    bouyer }
    305   1.1    bouyer 
    306   1.4   thorpej void
    307  1.32   thorpej tlphy_status(struct mii_softc *physc)
    308   1.1    bouyer {
    309  1.24   thorpej 	struct tlphy_softc *sc = (void *) physc;
    310   1.7   thorpej 	struct mii_data *mii = sc->sc_mii.mii_pdata;
    311   1.7   thorpej 	int bmsr, bmcr, tlctrl;
    312   1.4   thorpej 
    313   1.7   thorpej 	mii->mii_media_status = IFM_AVALID;
    314   1.7   thorpej 	mii->mii_media_active = IFM_ETHER;
    315   1.1    bouyer 
    316  1.12   thorpej 	bmcr = PHY_READ(&sc->sc_mii, MII_BMCR);
    317   1.7   thorpej 	if (bmcr & BMCR_ISO) {
    318   1.7   thorpej 		mii->mii_media_active |= IFM_NONE;
    319   1.7   thorpej 		mii->mii_media_status = 0;
    320   1.7   thorpej 		return;
    321   1.1    bouyer 	}
    322   1.1    bouyer 
    323  1.12   thorpej 	tlctrl = PHY_READ(&sc->sc_mii, MII_TLPHY_CTRL);
    324   1.7   thorpej 	if (tlctrl & CTRL_AUISEL) {
    325  1.10    bouyer 		if (sc->sc_tlphycap & TLPHY_MEDIA_10_2)
    326  1.10    bouyer 			mii->mii_media_active |= IFM_10_2;
    327  1.10    bouyer 		else if (sc->sc_tlphycap & TLPHY_MEDIA_10_5)
    328  1.10    bouyer 			mii->mii_media_active |= IFM_10_5;
    329   1.1    bouyer 		else
    330  1.10    bouyer 			printf("%s: AUI selected with no matching media !\n",
    331  1.10    bouyer 			    sc->sc_mii.mii_dev.dv_xname);
    332  1.31    bouyer 		mii->mii_media_status |= IFM_ACTIVE;
    333   1.7   thorpej 		return;
    334   1.1    bouyer 	}
    335  1.10    bouyer 
    336  1.12   thorpej 	bmsr = PHY_READ(&sc->sc_mii, MII_BMSR) |
    337  1.12   thorpej 	    PHY_READ(&sc->sc_mii, MII_BMSR);
    338  1.10    bouyer 	if (bmsr & BMSR_LINK)
    339  1.10    bouyer 		mii->mii_media_status |= IFM_ACTIVE;
    340   1.7   thorpej 
    341   1.7   thorpej 	if (bmcr & BMCR_LOOP)
    342   1.7   thorpej 		mii->mii_media_active |= IFM_LOOP;
    343   1.7   thorpej 
    344   1.7   thorpej 	/*
    345   1.7   thorpej 	 * Grr, braindead ThunderLAN PHY doesn't have any way to
    346   1.7   thorpej 	 * tell which media is actually active.  (Note it also
    347   1.7   thorpej 	 * doesn't self-configure after autonegotiation.)  We
    348   1.7   thorpej 	 * just have to report what's in the BMCR.
    349   1.7   thorpej 	 */
    350   1.7   thorpej 	if (bmcr & BMCR_FDX)
    351   1.7   thorpej 		mii->mii_media_active |= IFM_FDX;
    352   1.7   thorpej 	mii->mii_media_active |= IFM_10_T;
    353   1.1    bouyer }
    354   1.1    bouyer 
    355  1.17   thorpej int
    356  1.32   thorpej tlphy_auto(struct tlphy_softc *sc, int waitfor)
    357  1.17   thorpej {
    358  1.17   thorpej 	int error;
    359  1.17   thorpej 
    360  1.17   thorpej 	switch ((error = mii_phy_auto(&sc->sc_mii, waitfor))) {
    361  1.17   thorpej 	case EIO:
    362  1.17   thorpej 		/*
    363  1.17   thorpej 		 * Just assume we're not in full-duplex mode.
    364  1.17   thorpej 		 * XXX Check link and try AUI/BNC?
    365  1.17   thorpej 		 */
    366  1.17   thorpej 		PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
    367  1.17   thorpej 		break;
    368  1.17   thorpej 
    369  1.17   thorpej 	case EJUSTRETURN:
    370  1.17   thorpej 		/* Flag that we need to program when it completes. */
    371  1.17   thorpej 		sc->sc_need_acomp = 1;
    372  1.17   thorpej 		break;
    373  1.17   thorpej 
    374  1.17   thorpej 	default:
    375  1.17   thorpej 		tlphy_acomp(sc);
    376  1.17   thorpej 	}
    377  1.17   thorpej 
    378  1.17   thorpej 	return (error);
    379  1.17   thorpej }
    380  1.17   thorpej 
    381   1.7   thorpej void
    382  1.32   thorpej tlphy_acomp(struct tlphy_softc *sc)
    383   1.1    bouyer {
    384  1.13   thorpej 	int aner, anlpar;
    385   1.1    bouyer 
    386  1.17   thorpej 	sc->sc_need_acomp = 0;
    387   1.7   thorpej 
    388   1.7   thorpej 	/*
    389   1.7   thorpej 	 * Grr, braindead ThunderLAN PHY doesn't self-configure
    390   1.7   thorpej 	 * after autonegotiation.  We have to do it ourselves
    391   1.7   thorpej 	 * based on the link partner status.
    392   1.7   thorpej 	 */
    393   1.7   thorpej 
    394  1.12   thorpej 	aner = PHY_READ(&sc->sc_mii, MII_ANER);
    395   1.7   thorpej 	if (aner & ANER_LPAN) {
    396  1.12   thorpej 		anlpar = PHY_READ(&sc->sc_mii, MII_ANLPAR) &
    397  1.12   thorpej 		    PHY_READ(&sc->sc_mii, MII_ANAR);
    398   1.7   thorpej 		if (anlpar & ANAR_10_FD) {
    399  1.12   thorpej 			PHY_WRITE(&sc->sc_mii, MII_BMCR, BMCR_FDX);
    400   1.7   thorpej 			return;
    401   1.7   thorpej 		}
    402   1.7   thorpej 	}
    403  1.12   thorpej 	PHY_WRITE(&sc->sc_mii, MII_BMCR, 0);
    404   1.1    bouyer }
    405