bmtphy.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
    1 /*      $NetBSD: bmtphy.c,v 1.14 2003/06/06 23:22:56 martin Exp $       */
    2 
    3 /*-
    4  * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
    9  * NASA Ames Research Center.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  * 3. All advertising materials mentioning features or use of this software
   20  *    must display the following acknowledgement:
   21  *      This product includes software developed by the NetBSD
   22  *      Foundation, Inc. and its contributors.
   23  * 4. Neither the name of The NetBSD Foundation nor the names of its
   24  *    contributors may be used to endorse or promote products derived
   25  *    from this software without specific prior written permission.
   26  *
   27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   37  * POSSIBILITY OF SUCH DAMAGE.
   38  */
   39 
   40 /*
   41  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
   42  *
   43  * Redistribution and use in source and binary forms, with or without
   44  * modification, are permitted provided that the following conditions
   45  * are met:
   46  * 1. Redistributions of source code must retain the above copyright
   47  *    notice, this list of conditions and the following disclaimer.
   48  * 2. Redistributions in binary form must reproduce the above copyright
   49  *    notice, this list of conditions and the following disclaimer in the
   50  *    documentation and/or other materials provided with the distribution.
   51  * 3. All advertising materials mentioning features or use of this software
   52  *    must display the following acknowledgement:
   53  *      This product includes software developed by Manuel Bouyer.
   54  * 4. The name of the author may not be used to endorse or promote products
   55  *    derived from this software without specific prior written permission.
   56  *
   57  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   58  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   59  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   60  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   61  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   62  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   63  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   64  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   65  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   66  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   67  */
   68 
   69 /*
   70  * Driver for the Broadcom BCM5201/BCM5202 "Mini-Theta" PHYs.  This also
   71  * drives the PHY on the 3Com 3c905C.  The 3c905C's PHY is described in
   72  * the 3c905C data sheet.
   73  */
   74 
   75 #include <sys/cdefs.h>
   76 __KERNEL_RCSID(0, "$NetBSD: bmtphy.c,v 1.14 2003/06/06 23:22:56 martin Exp $");
   77 
   78 #include <sys/param.h>
   79 #include <sys/systm.h>
   80 #include <sys/kernel.h>
   81 #include <sys/device.h>
   82 #include <sys/socket.h>
   83 #include <sys/errno.h>
   84 
   85 #include <net/if.h>
   86 #include <net/if_media.h>
   87 
   88 #include <dev/mii/mii.h>
   89 #include <dev/mii/miivar.h>
   90 #include <dev/mii/miidevs.h>
   91 
   92 #include <dev/mii/bmtphyreg.h>
   93 
   94 int     bmtphymatch(struct device *, struct cfdata *, void *);
   95 void    bmtphyattach(struct device *, struct device *, void *);
   96 
   97 CFATTACH_DECL(bmtphy, sizeof(struct mii_softc),
   98     bmtphymatch, bmtphyattach, mii_phy_detach, mii_phy_activate);
   99 
  100 int     bmtphy_service(struct mii_softc *, struct mii_data *, int);
  101 void    bmtphy_status(struct mii_softc *);
  102 
  103 const struct mii_phy_funcs bmtphy_funcs = {
  104         bmtphy_service, bmtphy_status, mii_phy_reset,
  105 };
  106 
  107 const struct mii_phydesc bmtphys[] = {
  108         { MII_OUI_xxBROADCOM,           MII_MODEL_xxBROADCOM_3C905B,
  109           MII_STR_xxBROADCOM_3C905B },
  110         { MII_OUI_xxBROADCOM,           MII_MODEL_xxBROADCOM_3C905C,
  111           MII_STR_xxBROADCOM_3C905C },
  112         { MII_OUI_xxBROADCOM,           MII_MODEL_xxBROADCOM_BCM5201,
  113           MII_STR_xxBROADCOM_BCM5201 },
  114         { MII_OUI_xxBROADCOM,           MII_MODEL_xxBROADCOM_BCM5214,
  115           MII_STR_xxBROADCOM_BCM5214 },
  116         { MII_OUI_xxBROADCOM,           MII_MODEL_xxBROADCOM_BCM5221,
  117           MII_STR_xxBROADCOM_BCM5221 },
  118 
  119         { 0,                            0,
  120           NULL },
  121 };
  122 
  123 int
  124 bmtphymatch(struct device *parent, struct cfdata *match, void *aux)
  125 {
  126         struct mii_attach_args *ma = aux;
  127 
  128         if (mii_phy_match(ma, bmtphys) != NULL)
  129                 return (10);
  130 
  131         return (0);
  132 }
  133 
  134 void
  135 bmtphyattach(struct device *parent, struct device *self, void *aux)
  136 {
  137         struct mii_softc *sc = (struct mii_softc *)self;
  138         struct mii_attach_args *ma = aux;
  139         struct mii_data *mii = ma->mii_data;
  140         const struct mii_phydesc *mpd;
  141 
  142         mpd = mii_phy_match(ma, bmtphys);
  143         aprint_naive(": Media interface\n");
  144         aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
  145 
  146         sc->mii_inst = mii->mii_instance;
  147         sc->mii_phy = ma->mii_phyno;
  148         sc->mii_funcs = &bmtphy_funcs;
  149         sc->mii_pdata = mii;
  150         sc->mii_flags = ma->mii_flags;
  151         sc->mii_anegticks = 5;
  152 
  153         PHY_RESET(sc);
  154 
  155         /*
  156          * XXX Check AUX_STS_FX_MODE to set MIIF_HAVE_FIBER?
  157          */
  158 
  159         sc->mii_capabilities =
  160             PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
  161         aprint_normal("%s: ", sc->mii_dev.dv_xname);
  162         if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
  163                 aprint_error("no media present");
  164         else
  165                 mii_phy_add_media(sc);
  166         aprint_normal("\n");
  167 }
  168 
  169 int
  170 bmtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
  171 {
  172         struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
  173         int reg;
  174 
  175         switch (cmd) {
  176         case MII_POLLSTAT:
  177                 /*
  178                  * If we're not polling our PHY instance, just return.
  179                  */
  180                 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
  181                         return (0);
  182                 break;
  183 
  184         case MII_MEDIACHG:
  185                 /*
  186                  * If the media indicates a different PHY instance,
  187                  * isolate ourselves.
  188                  */
  189                 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
  190                         reg = PHY_READ(sc, MII_BMCR);
  191                         PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
  192                         return (0);
  193                 }
  194 
  195                 /*
  196                  * If the interface is not up, don't do anything.
  197                  */
  198                 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
  199                         break;
  200 
  201                 mii_phy_setmedia(sc);
  202                 break;
  203 
  204         case MII_TICK:
  205                 /*
  206                  * If we're not currently selected, just return.
  207                  */
  208                 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
  209                         return (0);
  210 
  211                 if (mii_phy_tick(sc) == EJUSTRETURN)
  212                         return (0);
  213                 break;
  214 
  215         case MII_DOWN:
  216                 mii_phy_down(sc);
  217                 return (0);
  218         }
  219 
  220         /* Update the media status. */
  221         mii_phy_status(sc);
  222 
  223         /* Callback if something changed. */
  224         mii_phy_update(sc, cmd);
  225         return (0);
  226 }
  227 
  228 void
  229 bmtphy_status(struct mii_softc *sc)
  230 {
  231         struct mii_data *mii = sc->mii_pdata;
  232         struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
  233         int bmsr, bmcr, aux_csr;
  234 
  235         mii->mii_media_status = IFM_AVALID;
  236         mii->mii_media_active = IFM_ETHER;
  237 
  238         bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
  239 
  240         if (bmsr & BMSR_LINK)
  241                 mii->mii_media_status |= IFM_ACTIVE;
  242 
  243         bmcr = PHY_READ(sc, MII_BMCR);
  244         if (bmcr & BMCR_ISO) {
  245                 mii->mii_media_active |= IFM_NONE;
  246                 mii->mii_media_status = 0;
  247                 return;
  248         }
  249 
  250         if (bmcr & BMCR_LOOP)
  251                 mii->mii_media_active |= IFM_LOOP;
  252 
  253         if (bmcr & BMCR_AUTOEN) {
  254                 /*
  255                  * The media status bits are only valid of autonegotiation
  256                  * has completed (or it's disabled).
  257                  */
  258                 if ((bmsr & BMSR_ACOMP) == 0) {
  259                         /* Erg, still trying, I guess... */
  260                         mii->mii_media_active |= IFM_NONE;
  261                         return;
  262                 }
  263 
  264                 aux_csr = PHY_READ(sc, MII_BMTPHY_AUX_CSR);
  265                 if (aux_csr & AUX_CSR_SPEED)
  266                         mii->mii_media_active |= IFM_100_TX;
  267                 else
  268                         mii->mii_media_active |= IFM_10_T;
  269                 if (aux_csr & AUX_CSR_FDX)
  270                         mii->mii_media_active |= IFM_FDX;
  271         } else
  272                 mii->mii_media_active = ife->ifm_media;
  273 }
Cache object: 3d86cad9b44d0b0f5c3c6f93fa5d3d32
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.
FreeBSD/Linux Kernel Cross Reference sys/dev/mii/bmtphy.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/mii/bmtphy.c
