sys/dev/ic/dp83905.c

   1 /*      $NetBSD: dp83905.c,v 1.3 2005/12/11 12:21:26 christos 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 1.3 2005/12/11 12:21:26 christos 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 }