inphy.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) 2001 Jonathan Lemon
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. Neither the name of the author nor the names of any co-contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  */
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD$");
   33 
   34 /*
   35  * driver for Intel 82553 and 82555 PHYs
   36  */
   37 
   38 #include <sys/param.h>
   39 #include <sys/systm.h>
   40 #include <sys/kernel.h>
   41 #include <sys/module.h>
   42 #include <sys/socket.h>
   43 #include <sys/bus.h>
   44 
   45 #include <net/if.h>
   46 #include <net/if_media.h>
   47 
   48 #include <dev/mii/mii.h>
   49 #include <dev/mii/miivar.h>
   50 #include "miidevs.h"
   51 
   52 #include <dev/mii/inphyreg.h>
   53 
   54 #include "miibus_if.h"
   55 
   56 static int      inphy_probe(device_t dev);
   57 static int      inphy_attach(device_t dev);
   58 
   59 static device_method_t inphy_methods[] = {
   60         /* device interface */
   61         DEVMETHOD(device_probe,         inphy_probe),
   62         DEVMETHOD(device_attach,        inphy_attach),
   63         DEVMETHOD(device_detach,        mii_phy_detach),
   64         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
   65         { 0, 0 }
   66 };
   67 
   68 static devclass_t inphy_devclass;
   69 
   70 static driver_t inphy_driver = {
   71         "inphy",
   72         inphy_methods,
   73         sizeof(struct mii_softc)
   74 };
   75 
   76 DRIVER_MODULE(inphy, miibus, inphy_driver, inphy_devclass, 0, 0);
   77 
   78 static int      inphy_service(struct mii_softc *, struct mii_data *, int);
   79 static void     inphy_status(struct mii_softc *);
   80 
   81 static const struct mii_phydesc inphys[] = {
   82         MII_PHY_DESC(INTEL, I82553C),
   83         MII_PHY_DESC(INTEL, I82555),
   84         MII_PHY_DESC(INTEL, I82562EM),
   85         MII_PHY_DESC(INTEL, I82562ET),
   86         MII_PHY_DESC(xxINTEL, I82553AB),
   87         MII_PHY_END
   88 };
   89 
   90 static int
   91 inphy_probe(device_t dev)
   92 {
   93 
   94         return (mii_phy_dev_probe(dev, inphys, BUS_PROBE_DEFAULT));
   95 }
   96 
   97 static int
   98 inphy_attach(device_t dev)
   99 {
  100         struct mii_softc *sc;
  101         struct mii_attach_args *ma;
  102         struct mii_data *mii;
  103 
  104         sc = device_get_softc(dev);
  105         ma = device_get_ivars(dev);
  106         sc->mii_dev = device_get_parent(dev);
  107         mii = device_get_softc(sc->mii_dev);
  108         LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
  109 
  110         sc->mii_inst = mii->mii_instance;
  111         sc->mii_phy = ma->mii_phyno;
  112         sc->mii_service = inphy_service;
  113         sc->mii_pdata = mii;
  114         mii->mii_instance++;
  115 
  116         ifmedia_add(&mii->mii_media,
  117             IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
  118             MII_MEDIA_100_TX, NULL);
  119 
  120         mii_phy_reset(sc);
  121 
  122         sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
  123         device_printf(dev, " ");
  124         mii_phy_add_media(sc);
  125         printf("\n");
  126 
  127         MIIBUS_MEDIAINIT(sc->mii_dev);
  128 
  129         return (0);
  130 }
  131 
  132 static int
  133 inphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
  134 {
  135         struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
  136         int reg;
  137 
  138         switch (cmd) {
  139         case MII_POLLSTAT:
  140                 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
  141                         return (0);
  142                 break;
  143 
  144         case MII_MEDIACHG:
  145                 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
  146                         reg = PHY_READ(sc, MII_BMCR);
  147                         PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
  148                         return (0);
  149                 }
  150 
  151                 /*
  152                  * If the interface is not up, don't do anything.
  153                  */
  154                 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
  155                         break;
  156 
  157                 mii_phy_setmedia(sc);
  158                 break;
  159 
  160         case MII_TICK:
  161                 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
  162                         return (0);
  163                 if (mii_phy_tick(sc) == EJUSTRETURN)
  164                         return (0);
  165                 break;
  166         }
  167 
  168         /* Update the media status. */
  169         inphy_status(sc);
  170 
  171         /* Callback if something changed. */
  172         mii_phy_update(sc, cmd);
  173         return (0);
  174 }
  175 
  176 static void
  177 inphy_status(struct mii_softc *sc)
  178 {
  179         struct mii_data *mii = sc->mii_pdata;
  180         struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
  181         int bmsr, bmcr, scr;
  182 
  183         mii->mii_media_status = IFM_AVALID;
  184         mii->mii_media_active = IFM_ETHER;
  185 
  186         bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
  187         if (bmsr & BMSR_LINK)
  188                 mii->mii_media_status |= IFM_ACTIVE;
  189 
  190         bmcr = PHY_READ(sc, MII_BMCR);
  191         if (bmcr & BMCR_ISO) {
  192                 mii->mii_media_active |= IFM_NONE;
  193                 mii->mii_media_status = 0;
  194                 return;
  195         }
  196 
  197         if (bmcr & BMCR_LOOP)
  198                 mii->mii_media_active |= IFM_LOOP;
  199 
  200         if (bmcr & BMCR_AUTOEN) {
  201                 if ((bmsr & BMSR_ACOMP) == 0) {
  202                         mii->mii_media_active |= IFM_NONE;
  203                         return;
  204                 }
  205 
  206                 scr = PHY_READ(sc, MII_INPHY_SCR);
  207                 if (scr & SCR_S100)
  208                         mii->mii_media_active |= IFM_100_TX;
  209                 else
  210                         mii->mii_media_active |= IFM_10_T;
  211                 if (scr & SCR_FDX)
  212                         mii->mii_media_active |= IFM_FDX;
  213         } else
  214                 mii->mii_media_active = ife->ifm_media;
  215 }

Cache object: 0ee1613540d9cccf9f0f15bfd8d9dd4c

[ 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/inphy.c

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