pnaphy.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 /*
    2  * Copyright (c) 2000 Berkeley Software Design, Inc.
    3  * Copyright (c) 1997, 1998, 1999, 2000
    4  *      Bill Paul <wpaul@osd.bsdi.com>.  All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 3. All advertising materials mentioning features or use of this software
   15  *    must display the following acknowledgement:
   16  *      This product includes software developed by Bill Paul.
   17  * 4. Neither the name of the author nor the names of any co-contributors
   18  *    may be used to endorse or promote products derived from this software
   19  *    without specific prior written permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
   22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
   25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   31  * THE POSSIBILITY OF SUCH DAMAGE.
   32  *
   33  * $FreeBSD: src/sys/dev/mii/pnaphy.c,v 1.1.2.3 2002/11/08 21:53:49 semenu Exp $
   34  */
   35 
   36 /*
   37  * driver for homePNA PHYs
   38  * This is really just a stub that allows us to identify homePNA-based
   39  * transceicers and display the link status. MII-based homePNA PHYs
   40  * only support one media type and no autonegotiation. If we were
   41  * really clever, we could tweak some of the vendor-specific registers
   42  * to optimize the link.
   43  */
   44 
   45 #include <sys/param.h>
   46 #include <sys/systm.h>
   47 #include <sys/kernel.h>
   48 #include <sys/socket.h>
   49 #include <sys/errno.h>
   50 #include <sys/module.h>
   51 #include <sys/bus.h>
   52 
   53 #include <net/if.h>
   54 #include <net/if_media.h>
   55 
   56 #include <machine/clock.h>
   57 
   58 #include "mii.h"
   59 #include "miivar.h"
   60 #include "miidevs.h"
   61 
   62 #include "miibus_if.h"
   63 
   64 static int pnaphy_probe         (device_t);
   65 static int pnaphy_attach        (device_t);
   66 
   67 static device_method_t pnaphy_methods[] = {
   68         /* device interface */
   69         DEVMETHOD(device_probe,         pnaphy_probe),
   70         DEVMETHOD(device_attach,        pnaphy_attach),
   71         DEVMETHOD(device_detach,        ukphy_detach),
   72         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
   73         DEVMETHOD_END
   74 };
   75 
   76 static const struct mii_phydesc pnaphys[] = {
   77         MII_PHYDESC(AMD,        79c978),
   78         MII_PHYDESC_NULL
   79 };
   80 
   81 static devclass_t pnaphy_devclass;
   82 
   83 static driver_t pnaphy_driver = {
   84         "pnaphy",
   85         pnaphy_methods,
   86         sizeof(struct mii_softc)
   87 };
   88 
   89 DRIVER_MODULE(pnaphy, miibus, pnaphy_driver, pnaphy_devclass, NULL, NULL);
   90 
   91 static int      pnaphy_service(struct mii_softc *, struct mii_data *, int);
   92 
   93 static int
   94 pnaphy_probe(device_t dev)
   95 {
   96         struct mii_attach_args *ma = device_get_ivars(dev);
   97         const struct mii_phydesc *mpd;
   98 
   99         mpd = mii_phy_match(ma, pnaphys);
  100         if (mpd != NULL) {
  101                 device_set_desc(dev, mpd->mpd_name);
  102                 return (0);
  103         }
  104         return(ENXIO);
  105 }
  106 
  107 static int
  108 pnaphy_attach(device_t dev)
  109 {
  110         struct mii_softc *sc;
  111         struct mii_attach_args *ma;
  112         struct mii_data *mii;
  113 
  114         sc = device_get_softc(dev);
  115         ma = device_get_ivars(dev);
  116         mii_softc_init(sc, ma);
  117         sc->mii_dev = device_get_parent(dev);
  118         mii = device_get_softc(sc->mii_dev);
  119         LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
  120 
  121         sc->mii_inst = mii->mii_instance;
  122         sc->mii_service = pnaphy_service;
  123         sc->mii_pdata = mii;
  124 
  125         mii->mii_instance++;
  126 
  127         sc->mii_flags |= MIIF_NOISOLATE |
  128                          MIIF_IS_HPNA;          /* force HomePNA */
  129 
  130         mii_phy_reset(sc);
  131 
  132         sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
  133 
  134         device_printf(dev, " ");
  135         if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0)
  136                 kprintf("no media present");
  137         else
  138                 mii_phy_add_media(sc);
  139         kprintf("\n");
  140 
  141 #define ADD(m, c)       ifmedia_add(&mii->mii_media, (m), (c), NULL)
  142         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
  143             MII_MEDIA_NONE);
  144 #undef ADD
  145 
  146         MIIBUS_MEDIAINIT(sc->mii_dev);
  147         return(0);
  148 }
  149 
  150 static int
  151 pnaphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
  152 {
  153         struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
  154         int reg;
  155 
  156         switch (cmd) {
  157         case MII_POLLSTAT:
  158                 /*
  159                  * If we're not polling our PHY instance, just return.
  160                  */
  161                 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
  162                         return (0);
  163                 break;
  164 
  165         case MII_MEDIACHG:
  166                 /*
  167                  * If the media indicates a different PHY instance,
  168                  * isolate ourselves.
  169                  */
  170                 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
  171                         reg = PHY_READ(sc, MII_BMCR);
  172                         PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
  173                         return (0);
  174                 }
  175 
  176                 /*
  177                  * If the interface is not up, don't do anything.
  178                  */
  179                 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
  180                         break;
  181 
  182                 switch (IFM_SUBTYPE(ife->ifm_media)) {
  183                 case IFM_AUTO:
  184                 case IFM_10_T:
  185                 case IFM_100_TX:
  186                 case IFM_100_T4:
  187                         return (EINVAL);
  188                 default:
  189                         mii_phy_set_media(sc);
  190                 }
  191                 break;
  192 
  193         case MII_TICK:
  194                 /*
  195                  * If we're not currently selected, just return.
  196                  */
  197                 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
  198                         return (0);
  199 
  200                 if (mii_phy_tick(sc) == EJUSTRETURN)
  201                         return (0);
  202                 break;
  203         }
  204 
  205         /* Update the media status. */
  206         ukphy_status(sc);
  207         if (IFM_SUBTYPE(mii->mii_media_active) == IFM_10_T)
  208                 mii->mii_media_active = IFM_ETHER | IFM_HPNA_1;
  209 
  210         /* Callback if something changed. */
  211         mii_phy_update(sc, cmd);
  212         return (0);
  213 }

Cache object: d4577a26fa227ee36a4737710291e6b0

[ 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/netif/mii_layer/pnaphy.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/netif/mii_layer/pnaphy.c