dp83905.c

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    1 /*      $NetBSD: dp83905.c,v 1.4 2007/10/19 11:59:50 ad Exp $   */
    2 
    3 /*-
    4  * Copyright (c) 2001 Ben Harris
    5  * Copyright (c) 1998 Mike Pumford
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. All advertising materials mentioning features or use of this software
   16  *    must display the following acknowledgement:
   17  *      This product includes software developed by the NetBSD
   18  *      Foundation, Inc. and its contributors.
   19  * 4. Neither the name of The NetBSD Foundation nor the names of its
   20  *    contributors may be used to endorse or promote products derived
   21  *    from this software without specific prior written permission.
   22  *
   23  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   33  * POSSIBILITY OF SUCH DAMAGE.
   34  */
   35 
   36 #include <sys/param.h>
   37 
   38 __KERNEL_RCSID(0, "$NetBSD: dp83905.c,v 1.4 2007/10/19 11:59:50 ad Exp $");
   39 
   40 #include <sys/device.h>
   41 #include <sys/mbuf.h>
   42 #include <sys/socket.h>
   43 #include <sys/systm.h>
   44 
   45 #include <net/if.h>
   46 #include <net/if_ether.h>
   47 #include <net/if_media.h>
   48 
   49 #include <sys/bus.h>
   50 
   51 #include <dev/ic/dp8390reg.h>
   52 #include <dev/ic/dp8390var.h>
   53 
   54 #include <dev/ic/dp83905reg.h>
   55 #include <dev/ic/dp83905var.h>
   56 
   57 int
   58 dp83905_mediachange(struct dp8390_softc *sc)
   59 {
   60 
   61         /* Media already set up.  Reset the interface to make it stick. */
   62         dp8390_reset(sc);
   63         return (0);
   64 }
   65 
   66 void
   67 dp83905_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
   68 {
   69         bus_space_tag_t nict = sc->sc_regt;
   70         bus_space_handle_t nich = sc->sc_regh;
   71         u_int8_t mcrb;
   72 
   73         bus_space_write_1(nict, nich, ED_P0_CR,
   74             ED_CR_RD2 | ED_CR_PAGE_0 | ED_CR_STA);
   75         mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
   76         /* Random op so next RBCR1 write doesn't go to MCRB. */
   77         bus_space_write_1(nict, nich, ED_P0_CR,
   78             ED_CR_RD2 | ED_CR_PAGE_0 | ED_CR_STA);
   79         switch (mcrb & DP83905_MCRB_PHY_MASK) {
   80         case DP83905_MCRB_PHY_10_T:
   81         case DP83905_MCRB_PHY_TPI_NONSPEC: /* XXX */
   82                 ifmr->ifm_active = IFM_ETHER | IFM_10_T;
   83                 ifmr->ifm_status = IFM_AVALID;
   84                 if (mcrb & DP83905_MCRB_GDLNK)
   85                         ifmr->ifm_status |= IFM_ACTIVE;
   86                 break;
   87         case DP83905_MCRB_PHY_10_2:
   88                 ifmr->ifm_active = IFM_ETHER | IFM_10_2;
   89                 break;
   90         case DP83905_MCRB_PHY_AUI:
   91                 ifmr->ifm_active = IFM_ETHER | IFM_10_5;
   92                 break;
   93         }
   94 }
   95 
   96 void dp83905_init_card(struct dp8390_softc *sc)
   97 {
   98         struct ifmedia *ifm = &sc->sc_media;
   99         bus_space_tag_t nict = sc->sc_regt;
  100         bus_space_handle_t nich = sc->sc_regh;
  101         u_int8_t mcrb;
  102 
  103         /* Set basic media type. */
  104         switch (IFM_SUBTYPE(ifm->ifm_cur->ifm_media)) {
  105         case IFM_AUTO:
  106                 /* software auto detect the media */
  107                 mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
  108                 mcrb &= ~(DP83905_MCRB_PHY_MASK | DP83905_MCRB_GDLNK |
  109                     DP83905_MCRB_BE);
  110                 mcrb |= DP83905_MCRB_PHY_10_T;
  111                 bus_space_write_1(nict, nich, DP83905_MCRB, mcrb);
  112                 mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
  113                 if (mcrb & DP83905_MCRB_GDLNK)
  114                         break;
  115                 /* No UTP use BNC */
  116                 /* FALLTHROUGH */
  117 
  118         case IFM_10_2:
  119                 mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
  120                 mcrb &= ~(DP83905_MCRB_PHY_MASK | DP83905_MCRB_GDLNK |
  121                     DP83905_MCRB_BE);
  122                 mcrb |= DP83905_MCRB_PHY_10_2;
  123                 bus_space_write_1(nict, nich, DP83905_MCRB, mcrb);
  124                 /*
  125                  * seems that re-reading config B here is required to
  126                  * prevent the interface hanging when manually selecting.
  127                  */
  128                 bus_space_read_1(nict, nich, DP83905_MCRB);
  129                 break;
  130 
  131         case IFM_10_T:
  132                 mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
  133                 mcrb &= ~(DP83905_MCRB_PHY_MASK | DP83905_MCRB_GDLNK |
  134                     DP83905_MCRB_BE);
  135                 mcrb |= DP83905_MCRB_PHY_10_T;
  136                 bus_space_write_1(nict, nich, DP83905_MCRB, mcrb);
  137                 /*
  138                  * seems that re-reading config B here is required to
  139                  * prevent the interface hanging when manually selecting.
  140                  */
  141                 bus_space_read_1(nict, nich, DP83905_MCRB);
  142                 break;
  143 
  144         case IFM_10_5:
  145                 mcrb = bus_space_read_1(nict, nich, DP83905_MCRB);
  146                 mcrb &= ~(DP83905_MCRB_PHY_MASK | DP83905_MCRB_GDLNK |
  147                     DP83905_MCRB_BE);
  148                 mcrb |= DP83905_MCRB_PHY_AUI;
  149                 bus_space_write_1(nict, nich, DP83905_MCRB, mcrb);
  150                 /*
  151                  * seems that re-reading config B here is required to
  152                  * prevent the interface hanging when manually selecting.
  153                  */
  154                 bus_space_read_1(nict, nich, DP83905_MCRB);
  155                 break;
  156         }
  157 }

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FreeBSD/Linux Kernel Cross Reference sys/dev/ic/dp83905.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/dp83905.c