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ukphy.c revision 1.23.2.1
      1  1.23.2.1     skrll /*	$NetBSD: ukphy.c,v 1.23.2.1 2004/08/25 06:58:05 skrll Exp $	*/
      2       1.1   thorpej 
      3       1.1   thorpej /*-
      4      1.13   thorpej  * Copyright (c) 1998, 1999, 2000 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, and by Frank van der Linden.
     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 generic unknown PHYs
     71       1.1   thorpej  */
     72      1.17     lukem 
     73      1.17     lukem #include <sys/cdefs.h>
     74  1.23.2.1     skrll __KERNEL_RCSID(0, "$NetBSD: ukphy.c,v 1.23.2.1 2004/08/25 06:58:05 skrll Exp $");
     75      1.12  sommerfe 
     76      1.12  sommerfe #include "opt_mii.h"
     77       1.1   thorpej 
     78       1.1   thorpej #include <sys/param.h>
     79       1.1   thorpej #include <sys/systm.h>
     80       1.1   thorpej #include <sys/kernel.h>
     81       1.1   thorpej #include <sys/device.h>
     82       1.1   thorpej #include <sys/socket.h>
     83       1.2   thorpej #include <sys/errno.h>
     84       1.1   thorpej 
     85       1.1   thorpej #include <net/if.h>
     86       1.1   thorpej #include <net/if_media.h>
     87       1.1   thorpej 
     88       1.1   thorpej #include <dev/mii/mii.h>
     89       1.1   thorpej #include <dev/mii/miivar.h>
     90       1.1   thorpej 
     91      1.11  augustss #ifdef MIIVERBOSE
     92      1.11  augustss struct mii_knowndev {
     93      1.11  augustss 	int oui;
     94      1.11  augustss 	int model;
     95      1.11  augustss 	const char *descr;
     96      1.11  augustss };
     97      1.11  augustss #include <dev/mii/miidevs.h>
     98      1.11  augustss #include <dev/mii/miidevs_data.h>
     99      1.11  augustss #endif
    100      1.11  augustss 
    101  1.23.2.1     skrll static int	ukphymatch(struct device *, struct cfdata *, void *);
    102  1.23.2.1     skrll static void	ukphyattach(struct device *, struct device *, void *);
    103       1.1   thorpej 
    104      1.21   thorpej CFATTACH_DECL(ukphy, sizeof(struct mii_softc),
    105      1.22   thorpej     ukphymatch, ukphyattach, mii_phy_detach, mii_phy_activate);
    106       1.1   thorpej 
    107  1.23.2.1     skrll static int	ukphy_service(struct mii_softc *, struct mii_data *, int);
    108       1.1   thorpej 
    109  1.23.2.1     skrll static const struct mii_phy_funcs ukphy_funcs = {
    110      1.13   thorpej 	ukphy_service, ukphy_status, mii_phy_reset,
    111      1.13   thorpej };
    112      1.13   thorpej 
    113  1.23.2.1     skrll static int
    114      1.16   thorpej ukphymatch(struct device *parent, struct cfdata *match, void *aux)
    115       1.1   thorpej {
    116       1.1   thorpej 
    117       1.1   thorpej 	/*
    118       1.1   thorpej 	 * We know something is here, so always match at a low priority.
    119       1.1   thorpej 	 */
    120       1.1   thorpej 	return (1);
    121       1.1   thorpej }
    122       1.1   thorpej 
    123  1.23.2.1     skrll static void
    124      1.16   thorpej ukphyattach(struct device *parent, struct device *self, void *aux)
    125       1.1   thorpej {
    126       1.1   thorpej 	struct mii_softc *sc = (struct mii_softc *)self;
    127       1.1   thorpej 	struct mii_attach_args *ma = aux;
    128       1.1   thorpej 	struct mii_data *mii = ma->mii_data;
    129      1.11  augustss 	int oui = MII_OUI(ma->mii_id1, ma->mii_id2);
    130      1.11  augustss 	int model = MII_MODEL(ma->mii_id2);
    131      1.11  augustss 	int rev = MII_REV(ma->mii_id2);
    132      1.11  augustss #ifdef MIIVERBOSE
    133      1.11  augustss 	int i;
    134      1.11  augustss #endif
    135       1.1   thorpej 
    136      1.23   thorpej 	aprint_naive(": Media interface\n");
    137      1.23   thorpej 	aprint_normal(": Generic IEEE 802.3u media interface\n");
    138      1.11  augustss #ifdef MIIVERBOSE
    139      1.11  augustss 	for (i = 0; mii_knowndevs[i].descr != NULL; i++)
    140      1.11  augustss 		if (mii_knowndevs[i].oui == oui &&
    141      1.11  augustss 		    mii_knowndevs[i].model == model)
    142      1.11  augustss 			break;
    143      1.11  augustss 	if (mii_knowndevs[i].descr != NULL)
    144      1.23   thorpej 		aprint_normal("%s: %s (OUI 0x%06x, model 0x%04x), rev. %d\n",
    145      1.11  augustss 		       sc->mii_dev.dv_xname, mii_knowndevs[i].descr,
    146      1.11  augustss 		       oui, model, rev);
    147      1.11  augustss 	else
    148      1.11  augustss #endif
    149      1.23   thorpej 		aprint_normal("%s: OUI 0x%06x, model 0x%04x, rev. %d\n",
    150      1.11  augustss 		       sc->mii_dev.dv_xname, oui, model, rev);
    151       1.1   thorpej 
    152       1.1   thorpej 	sc->mii_inst = mii->mii_instance;
    153       1.1   thorpej 	sc->mii_phy = ma->mii_phyno;
    154      1.13   thorpej 	sc->mii_funcs = &ukphy_funcs;
    155       1.1   thorpej 	sc->mii_pdata = mii;
    156      1.18   thorpej 	sc->mii_flags = ma->mii_flags;
    157      1.15   thorpej 	sc->mii_anegticks = 5;
    158       1.1   thorpej 
    159       1.3   thorpej 	/*
    160       1.3   thorpej 	 * Don't do loopback on unknown PHYs.  It might confuse some of them.
    161       1.3   thorpej 	 */
    162       1.3   thorpej 	sc->mii_flags |= MIIF_NOLOOP;
    163       1.1   thorpej 
    164      1.13   thorpej 	PHY_RESET(sc);
    165       1.1   thorpej 
    166       1.1   thorpej 	sc->mii_capabilities =
    167       1.1   thorpej 	    PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
    168      1.14   thorpej 	if (sc->mii_capabilities & BMSR_EXTSTAT)
    169      1.14   thorpej 		sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
    170      1.23   thorpej 	aprint_normal("%s: ", sc->mii_dev.dv_xname);
    171      1.14   thorpej 	if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 &&
    172      1.14   thorpej 	    (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0)
    173      1.23   thorpej 		aprint_error("no media present");
    174       1.1   thorpej 	else
    175       1.6   thorpej 		mii_phy_add_media(sc);
    176      1.23   thorpej 	aprint_normal("\n");
    177       1.1   thorpej }
    178       1.1   thorpej 
    179  1.23.2.1     skrll static int
    180      1.16   thorpej ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
    181       1.1   thorpej {
    182       1.1   thorpej 	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
    183       1.1   thorpej 	int reg;
    184       1.5   thorpej 
    185       1.5   thorpej 	if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
    186       1.5   thorpej 		return (ENXIO);
    187       1.1   thorpej 
    188       1.1   thorpej 	switch (cmd) {
    189       1.1   thorpej 	case MII_POLLSTAT:
    190       1.1   thorpej 		/*
    191       1.1   thorpej 		 * If we're not polling our PHY instance, just return.
    192       1.1   thorpej 		 */
    193       1.1   thorpej 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
    194       1.1   thorpej 			return (0);
    195       1.1   thorpej 		break;
    196       1.1   thorpej 
    197       1.1   thorpej 	case MII_MEDIACHG:
    198       1.1   thorpej 		/*
    199       1.1   thorpej 		 * If the media indicates a different PHY instance,
    200       1.1   thorpej 		 * isolate ourselves.
    201       1.1   thorpej 		 */
    202       1.1   thorpej 		if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
    203       1.1   thorpej 			reg = PHY_READ(sc, MII_BMCR);
    204       1.1   thorpej 			PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
    205       1.1   thorpej 			return (0);
    206       1.1   thorpej 		}
    207       1.1   thorpej 
    208       1.1   thorpej 		/*
    209       1.1   thorpej 		 * If the interface is not up, don't do anything.
    210       1.1   thorpej 		 */
    211       1.1   thorpej 		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
    212       1.1   thorpej 			break;
    213       1.1   thorpej 
    214       1.9   thorpej 		mii_phy_setmedia(sc);
    215       1.1   thorpej 		break;
    216       1.1   thorpej 
    217       1.1   thorpej 	case MII_TICK:
    218       1.1   thorpej 		/*
    219       1.1   thorpej 		 * If we're not currently selected, just return.
    220       1.1   thorpej 		 */
    221       1.1   thorpej 		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
    222       1.1   thorpej 			return (0);
    223       1.1   thorpej 
    224       1.1   thorpej 		/*
    225       1.1   thorpej 		 * Only used for autonegotiation.
    226       1.1   thorpej 		 */
    227       1.1   thorpej 		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO)
    228       1.1   thorpej 			return (0);
    229       1.1   thorpej 
    230      1.10   thorpej 		if (mii_phy_tick(sc) == EJUSTRETURN)
    231       1.2   thorpej 			return (0);
    232       1.1   thorpej 		break;
    233       1.4   thorpej 
    234       1.4   thorpej 	case MII_DOWN:
    235       1.4   thorpej 		mii_phy_down(sc);
    236       1.4   thorpej 		return (0);
    237       1.1   thorpej 	}
    238       1.1   thorpej 
    239       1.1   thorpej 	/* Update the media status. */
    240       1.8   thorpej 	mii_phy_status(sc);
    241       1.1   thorpej 
    242       1.1   thorpej 	/* Callback if something changed. */
    243      1.10   thorpej 	mii_phy_update(sc, cmd);
    244       1.1   thorpej 	return (0);
    245       1.1   thorpej }
    246