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bmtphy.c revision 1.2.4.1
      1  1.2.4.1    lukem /*	$NetBSD: bmtphy.c,v 1.2.4.1 2001/08/03 04:13:13 lukem Exp $	*/
      2      1.1  thorpej 
      3      1.1  thorpej /*-
      4      1.1  thorpej  * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
      5      1.1  thorpej  * All rights reserved.
      6      1.1  thorpej  *
      7      1.1  thorpej  * This code is derived from software contributed to The NetBSD Foundation
      8      1.1  thorpej  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9      1.1  thorpej  * NASA Ames Research Center.
     10      1.1  thorpej  *
     11      1.1  thorpej  * Redistribution and use in source and binary forms, with or without
     12      1.1  thorpej  * modification, are permitted provided that the following conditions
     13      1.1  thorpej  * are met:
     14      1.1  thorpej  * 1. Redistributions of source code must retain the above copyright
     15      1.1  thorpej  *    notice, this list of conditions and the following disclaimer.
     16      1.1  thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     17      1.1  thorpej  *    notice, this list of conditions and the following disclaimer in the
     18      1.1  thorpej  *    documentation and/or other materials provided with the distribution.
     19      1.1  thorpej  * 3. All advertising materials mentioning features or use of this software
     20      1.1  thorpej  *    must display the following acknowledgement:
     21      1.1  thorpej  *	This product includes software developed by the NetBSD
     22      1.1  thorpej  *	Foundation, Inc. and its contributors.
     23      1.1  thorpej  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24      1.1  thorpej  *    contributors may be used to endorse or promote products derived
     25      1.1  thorpej  *    from this software without specific prior written permission.
     26      1.1  thorpej  *
     27      1.1  thorpej  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28      1.1  thorpej  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29      1.1  thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30      1.1  thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31      1.1  thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32      1.1  thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33      1.1  thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34      1.1  thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35      1.1  thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36      1.1  thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37      1.1  thorpej  * POSSIBILITY OF SUCH DAMAGE.
     38      1.1  thorpej  */
     39      1.1  thorpej 
     40      1.1  thorpej /*
     41      1.1  thorpej  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
     42      1.1  thorpej  *
     43      1.1  thorpej  * Redistribution and use in source and binary forms, with or without
     44      1.1  thorpej  * modification, are permitted provided that the following conditions
     45      1.1  thorpej  * are met:
     46      1.1  thorpej  * 1. Redistributions of source code must retain the above copyright
     47      1.1  thorpej  *    notice, this list of conditions and the following disclaimer.
     48      1.1  thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     49      1.1  thorpej  *    notice, this list of conditions and the following disclaimer in the
     50      1.1  thorpej  *    documentation and/or other materials provided with the distribution.
     51      1.1  thorpej  * 3. All advertising materials mentioning features or use of this software
     52      1.1  thorpej  *    must display the following acknowledgement:
     53      1.1  thorpej  *	This product includes software developed by Manuel Bouyer.
     54      1.1  thorpej  * 4. The name of the author may not be used to endorse or promote products
     55      1.1  thorpej  *    derived from this software without specific prior written permission.
     56      1.1  thorpej  *
     57      1.1  thorpej  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     58      1.1  thorpej  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     59      1.1  thorpej  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     60      1.1  thorpej  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     61      1.1  thorpej  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     62      1.1  thorpej  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     63      1.1  thorpej  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     64      1.1  thorpej  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     65      1.1  thorpej  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     66      1.1  thorpej  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     67      1.1  thorpej  */
     68      1.1  thorpej 
     69      1.1  thorpej /*
     70      1.1  thorpej  * Driver for the Broadcom BCM5201/BCM5202 "Mini-Theta" PHYs.  This also
     71      1.1  thorpej  * drives the PHY on the 3Com 3c905C.  The 3c905C's PHY is described in
     72      1.1  thorpej  * the 3c905C data sheet.
     73      1.1  thorpej  */
     74      1.1  thorpej 
     75      1.1  thorpej #include <sys/param.h>
     76      1.1  thorpej #include <sys/systm.h>
     77      1.1  thorpej #include <sys/kernel.h>
     78      1.1  thorpej #include <sys/device.h>
     79      1.1  thorpej #include <sys/malloc.h>
     80      1.1  thorpej #include <sys/socket.h>
     81      1.1  thorpej #include <sys/errno.h>
     82      1.1  thorpej 
     83      1.1  thorpej #include <net/if.h>
     84      1.1  thorpej #include <net/if_media.h>
     85      1.1  thorpej 
     86      1.1  thorpej #include <dev/mii/mii.h>
     87      1.1  thorpej #include <dev/mii/miivar.h>
     88      1.1  thorpej #include <dev/mii/miidevs.h>
     89      1.1  thorpej 
     90      1.1  thorpej #include <dev/mii/bmtphyreg.h>
     91      1.1  thorpej 
     92      1.1  thorpej int	bmtphymatch __P((struct device *, struct cfdata *, void *));
     93      1.1  thorpej void	bmtphyattach __P((struct device *, struct device *, void *));
     94      1.1  thorpej 
     95      1.1  thorpej struct cfattach bmtphy_ca = {
     96      1.1  thorpej 	sizeof(struct mii_softc), bmtphymatch, bmtphyattach,
     97      1.1  thorpej 	    mii_phy_detach, mii_phy_activate
     98      1.1  thorpej };
     99      1.1  thorpej 
    100      1.1  thorpej int	bmtphy_service __P((struct mii_softc *, struct mii_data *, int));
    101      1.1  thorpej void	bmtphy_status __P((struct mii_softc *));
    102      1.1  thorpej 
    103      1.1  thorpej const struct mii_phy_funcs bmtphy_funcs = {
    104      1.1  thorpej 	bmtphy_service, bmtphy_status, mii_phy_reset,
    105      1.1  thorpej };
    106      1.1  thorpej 
    107      1.1  thorpej const struct mii_phydesc bmtphys[] = {
    108  1.2.4.1    lukem 	{ MII_OUI_xxBROADCOM,		MII_MODEL_xxBROADCOM_3C905B,
    109  1.2.4.1    lukem 	  MII_STR_xxBROADCOM_3C905B },
    110      1.1  thorpej 	{ MII_OUI_xxBROADCOM,		MII_MODEL_xxBROADCOM_3C905C,
    111      1.1  thorpej 	  MII_STR_xxBROADCOM_3C905C },
    112      1.1  thorpej 	{ MII_OUI_xxBROADCOM,		MII_MODEL_xxBROADCOM_BCM5201,
    113      1.1  thorpej 	  MII_STR_xxBROADCOM_BCM5201 },
    114  1.2.4.1    lukem 	{ MII_OUI_xxBROADCOM,		MII_MODEL_xxBROADCOM_BCM5221,
    115  1.2.4.1    lukem 	  MII_STR_xxBROADCOM_BCM5221 },
    116      1.1  thorpej 
    117      1.1  thorpej 	{ 0,				0,
    118      1.1  thorpej 	  NULL },
    119      1.1  thorpej };
    120      1.1  thorpej 
    121      1.1  thorpej int
    122      1.1  thorpej bmtphymatch(parent, match, aux)
    123      1.1  thorpej 	struct device *parent;
    124      1.1  thorpej 	struct cfdata *match;
    125      1.1  thorpej 	void *aux;
    126      1.1  thorpej {
    127      1.1  thorpej 	struct mii_attach_args *ma = aux;
    128      1.1  thorpej 
    129      1.1  thorpej 	if (mii_phy_match(ma, bmtphys) != NULL)
    130      1.1  thorpej 		return (10);
    131      1.1  thorpej 
    132      1.1  thorpej 	return (0);
    133      1.1  thorpej }
    134      1.1  thorpej 
    135      1.1  thorpej void
    136      1.1  thorpej bmtphyattach(parent, self, aux)
    137      1.1  thorpej 	struct device *parent, *self;
    138      1.1  thorpej 	void *aux;
    139      1.1  thorpej {
    140      1.1  thorpej 	struct mii_softc *sc = (struct mii_softc *)self;
    141      1.1  thorpej 	struct mii_attach_args *ma = aux;
    142      1.1  thorpej 	struct mii_data *mii = ma->mii_data;
    143      1.1  thorpej 	const struct mii_phydesc *mpd;
    144      1.1  thorpej 
    145      1.1  thorpej 	mpd = mii_phy_match(ma, bmtphys);
    146      1.1  thorpej 	printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
    147      1.1  thorpej 
    148      1.1  thorpej 	sc->mii_inst = mii->mii_instance;
    149      1.1  thorpej 	sc->mii_phy = ma->mii_phyno;
    150      1.1  thorpej 	sc->mii_funcs = &bmtphy_funcs;
    151      1.1  thorpej 	sc->mii_pdata = mii;
    152      1.1  thorpej 	sc->mii_flags = mii->mii_flags;
    153      1.2    enami 	sc->mii_anegticks = 5;
    154      1.1  thorpej 
    155      1.1  thorpej 	PHY_RESET(sc);
    156      1.1  thorpej 
    157      1.1  thorpej 	/*
    158      1.1  thorpej 	 * XXX Check AUX_STS_FX_MODE to set MIIF_HAVE_FIBER?
    159      1.1  thorpej 	 */
    160      1.1  thorpej 
    161      1.1  thorpej 	sc->mii_capabilities =
    162      1.1  thorpej 	    PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
    163      1.1  thorpej 	printf("%s: ", sc->mii_dev.dv_xname);
    164      1.1  thorpej 	if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
    165      1.1  thorpej 		printf("no media present");
    166      1.1  thorpej 	else
    167      1.1  thorpej 		mii_phy_add_media(sc);
    168      1.1  thorpej 	printf("\n");
    169      1.1  thorpej }
    170      1.1  thorpej 
    171      1.1  thorpej int
    172      1.1  thorpej bmtphy_service(sc, mii, cmd)
    173      1.1  thorpej 	struct mii_softc *sc;
    174      1.1  thorpej 	struct mii_data *mii;
    175      1.1  thorpej 	int cmd;
    176      1.1  thorpej {
    177      1.1  thorpej 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
    178      1.1  thorpej 	int reg;
    179      1.1  thorpej 
    180      1.1  thorpej 	switch (cmd) {
    181      1.1  thorpej 	case MII_POLLSTAT:
    182      1.1  thorpej 		/*
    183      1.1  thorpej 		 * If we're not polling our PHY instance, just return.
    184      1.1  thorpej 		 */
    185      1.1  thorpej 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
    186      1.1  thorpej 			return (0);
    187      1.1  thorpej 		break;
    188      1.1  thorpej 
    189      1.1  thorpej 	case MII_MEDIACHG:
    190      1.1  thorpej 		/*
    191      1.1  thorpej 		 * If the media indicates a different PHY instance,
    192      1.1  thorpej 		 * isolate ourselves.
    193      1.1  thorpej 		 */
    194      1.1  thorpej 		if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
    195      1.1  thorpej 			reg = PHY_READ(sc, MII_BMCR);
    196      1.1  thorpej 			PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
    197      1.1  thorpej 			return (0);
    198      1.1  thorpej 		}
    199      1.1  thorpej 
    200      1.1  thorpej 		/*
    201      1.1  thorpej 		 * If the interface is not up, don't do anything.
    202      1.1  thorpej 		 */
    203      1.1  thorpej 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
    204      1.1  thorpej 			break;
    205      1.1  thorpej 
    206      1.1  thorpej 		mii_phy_setmedia(sc);
    207      1.1  thorpej 		break;
    208      1.1  thorpej 
    209      1.1  thorpej 	case MII_TICK:
    210      1.1  thorpej 		/*
    211      1.1  thorpej 		 * If we're not currently selected, just return.
    212      1.1  thorpej 		 */
    213      1.1  thorpej 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
    214      1.1  thorpej 			return (0);
    215      1.1  thorpej 
    216      1.1  thorpej 		if (mii_phy_tick(sc) == EJUSTRETURN)
    217      1.1  thorpej 			return (0);
    218      1.1  thorpej 		break;
    219      1.1  thorpej 
    220      1.1  thorpej 	case MII_DOWN:
    221      1.1  thorpej 		mii_phy_down(sc);
    222      1.1  thorpej 		return (0);
    223      1.1  thorpej 	}
    224      1.1  thorpej 
    225      1.1  thorpej 	/* Update the media status. */
    226      1.1  thorpej 	mii_phy_status(sc);
    227      1.1  thorpej 
    228      1.1  thorpej 	/* Callback if something changed. */
    229      1.1  thorpej 	mii_phy_update(sc, cmd);
    230      1.1  thorpej 	return (0);
    231      1.1  thorpej }
    232      1.1  thorpej 
    233      1.1  thorpej void
    234      1.1  thorpej bmtphy_status(sc)
    235      1.1  thorpej 	struct mii_softc *sc;
    236      1.1  thorpej {
    237      1.1  thorpej 	struct mii_data *mii = sc->mii_pdata;
    238      1.1  thorpej 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
    239      1.1  thorpej 	int bmsr, bmcr, aux_csr;
    240      1.1  thorpej 
    241      1.1  thorpej 	mii->mii_media_status = IFM_AVALID;
    242      1.1  thorpej 	mii->mii_media_active = IFM_ETHER;
    243      1.1  thorpej 
    244      1.1  thorpej 	bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
    245      1.1  thorpej 	aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR);
    246      1.1  thorpej 
    247      1.1  thorpej 	if (bmsr & BMSR_LINK)
    248      1.1  thorpej 		mii->mii_media_status |= IFM_ACTIVE;
    249      1.1  thorpej 
    250      1.1  thorpej 	bmcr = PHY_READ(sc, MII_BMCR);
    251      1.1  thorpej 	if (bmcr & BMCR_ISO) {
    252      1.1  thorpej 		mii->mii_media_active |= IFM_NONE;
    253      1.1  thorpej 		mii->mii_media_status = 0;
    254      1.1  thorpej 		return;
    255      1.1  thorpej 	}
    256      1.1  thorpej 
    257      1.1  thorpej 	if (bmcr & BMCR_LOOP)
    258      1.1  thorpej 		mii->mii_media_active |= IFM_LOOP;
    259      1.1  thorpej 
    260      1.1  thorpej 	if (bmcr & BMCR_AUTOEN) {
    261      1.1  thorpej 		/*
    262      1.1  thorpej 		 * The media status bits are only valid of autonegotiation
    263      1.1  thorpej 		 * has completed (or it's disabled).
    264      1.1  thorpej 		 */
    265      1.1  thorpej 		if ((bmsr & BMSR_ACOMP) == 0) {
    266      1.1  thorpej 			/* Erg, still trying, I guess... */
    267      1.1  thorpej 			mii->mii_media_active |= IFM_NONE;
    268      1.1  thorpej 			return;
    269      1.1  thorpej 		}
    270      1.1  thorpej 
    271      1.1  thorpej 		if (aux_csr & AUX_CSR_SPEED)
    272      1.1  thorpej 			mii->mii_media_active |= IFM_100_TX;
    273      1.1  thorpej 		else
    274      1.1  thorpej 			mii->mii_media_active |= IFM_10_T;
    275      1.1  thorpej 		if (aux_csr & AUX_CSR_FDX)
    276      1.1  thorpej 			mii->mii_media_active |= IFM_FDX;
    277      1.1  thorpej 	} else
    278      1.1  thorpej 		mii->mii_media_active = ife->ifm_media;
    279      1.1  thorpej }
    280