sys/dev/ic/rtl80x9.c

   1 /*      $NetBSD: rtl80x9.c,v 1.14 2008/04/28 20:23:51 martin Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1998 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  *
  20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: rtl80x9.c,v 1.14 2008/04/28 20:23:51 martin Exp $");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/mbuf.h>
  39 #include <sys/syslog.h>
  40 #include <sys/socket.h>
  41 #include <sys/device.h>
  42
  43 #include <net/if.h>
  44 #include <net/if_ether.h>
  45 #include <net/if_media.h>
  46
  47 #include <sys/bus.h>
  48 #include <sys/intr.h>
  49
  50 #include <dev/ic/dp8390reg.h>
  51 #include <dev/ic/dp8390var.h>
  52
  53 #include <dev/ic/ne2000reg.h>
  54 #include <dev/ic/ne2000var.h>
  55
  56 #include <dev/ic/rtl80x9reg.h>
  57 #include <dev/ic/rtl80x9var.h>
  58
  59 int
  60 rtl80x9_mediachange(struct dp8390_softc *dsc)
  61 {
  62
  63         /*
  64          * Current media is already set up.  Just reset the interface
  65          * to let the new value take hold.  The new media will be
  66          * set up in ne_pci_rtl8029_init_card() called via dp8390_init().
  67          */
  68         dp8390_reset(dsc);
  69         return (0);
  70 }
  71
  72 void
  73 rtl80x9_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
  74 {
  75         struct ifnet *ifp = &sc->sc_ec.ec_if;
  76         u_int8_t cr_proto = sc->cr_proto |
  77             ((ifp->if_flags & IFF_RUNNING) ? ED_CR_STA : ED_CR_STP);
  78
  79         /*
  80          * Sigh, can detect which media is being used, but can't
  81          * detect if we have link or not.
  82          */
  83
  84         /* Set NIC to page 3 registers. */
  85         NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_3);
  86
  87         if (NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG0) &
  88             RTL3_CONFIG0_BNC)
  89                 ifmr->ifm_active = IFM_ETHER|IFM_10_2;
  90         else {
  91                 ifmr->ifm_active = IFM_ETHER|IFM_10_T;
  92                 if (NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3) &
  93                     RTL3_CONFIG3_FUDUP)
  94                         ifmr->ifm_active |= IFM_FDX;
  95         }
  96
  97         /* Set NIC to page 0 registers. */
  98         NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_0);
  99 }
 100
 101 void
 102 rtl80x9_init_card(struct dp8390_softc *sc)
 103 {
 104         struct ifmedia *ifm = &sc->sc_media;
 105         struct ifnet *ifp = &sc->sc_ec.ec_if;
 106         u_int8_t cr_proto = sc->cr_proto |
 107             ((ifp->if_flags & IFF_RUNNING) ? ED_CR_STA : ED_CR_STP);
 108         u_int8_t reg;
 109
 110         /* Set NIC to page 3 registers. */
 111         NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_3);
 112
 113         /* write enable config1-3. */
 114         NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_EECR,
 115             RTL3_EECR_EEM1|RTL3_EECR_EEM0);
 116
 117         /* First, set basic media type. */
 118         reg = NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG2);
 119         reg &= ~(RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0);
 120         switch (IFM_SUBTYPE(ifm->ifm_cur->ifm_media)) {
 121         case IFM_AUTO:
 122                 /* Nothing to do; both bits clear == auto-detect. */
 123                 break;
 124
 125         case IFM_10_T:
 126                 /*
 127                  * According to docs, this should be:
 128                  * reg |= RTL3_CONFIG2_PL0;
 129                  * but this doesn't work, so make it the same as AUTO.
 130                  */
 131                 break;
 132
 133         case IFM_10_2:
 134                 reg |= RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0;
 135                 break;
 136         }
 137         NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG2, reg);
 138
 139         /* Now, set duplex mode. */
 140         reg = NIC_GET(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3);
 141         if (ifm->ifm_cur->ifm_media & IFM_FDX)
 142                 reg |= RTL3_CONFIG3_FUDUP;
 143         else
 144                 reg &= ~RTL3_CONFIG3_FUDUP;
 145         NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3, reg);
 146
 147         /* write disable config1-3 */
 148         NIC_PUT(sc->sc_regt, sc->sc_regh, NERTL_RTL3_EECR, 0);
 149
 150         /* Set NIC to page 0 registers. */
 151         NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_CR, cr_proto | ED_CR_PAGE_0);
 152 }
 153
 154 void
 155 rtl80x9_media_init(struct dp8390_softc *sc)
 156 {
 157         static int rtl80x9_media[] = {
 158                 IFM_ETHER|IFM_AUTO,
 159                 IFM_ETHER|IFM_10_T,
 160                 IFM_ETHER|IFM_10_T|IFM_FDX,
 161                 IFM_ETHER|IFM_10_2,
 162         };
 163         static const int rtl80x9_nmedia =
 164             sizeof(rtl80x9_media) / sizeof(rtl80x9_media[0]);
 165
 166         int i, defmedia;
 167         u_int8_t conf2, conf3;
 168
 169         aprint_normal_dev(sc->sc_dev,
 170             "10base2, 10baseT, 10baseT-FDX, auto, default ");
 171
 172         bus_space_write_1(sc->sc_regt, sc->sc_regh, ED_P0_CR, ED_CR_PAGE_3);
 173
 174         conf2 = bus_space_read_1(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG2);
 175         conf3 = bus_space_read_1(sc->sc_regt, sc->sc_regh, NERTL_RTL3_CONFIG3);
 176         printf("[0x%02x 0x%02x] ", conf2, conf3);
 177
 178         conf2 &= RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0;
 179
 180         switch (conf2) {
 181         default:
 182                 defmedia = IFM_ETHER|IFM_AUTO;
 183                 printf("auto\n");
 184                 break;
 185
 186         case RTL3_CONFIG2_PL1|RTL3_CONFIG2_PL0:
 187         case RTL3_CONFIG2_PL1:  /* XXX rtl docs sys 10base5, but chip cant do */
 188                 defmedia = IFM_ETHER|IFM_10_2;
 189                 printf("10base2\n");
 190                 break;
 191
 192         case RTL3_CONFIG2_PL0:
 193                 if (conf3 & RTL3_CONFIG3_FUDUP) {
 194                         defmedia = IFM_ETHER|IFM_10_T|IFM_FDX;
 195                         printf("10baseT-FDX\n");
 196                 } else {
 197                         defmedia = IFM_ETHER|IFM_10_T;
 198                         printf("10baseT\n");
 199                 }
 200                 break;
 201         }
 202
 203         bus_space_write_1(sc->sc_regt, sc->sc_regh, ED_P0_CR, ED_CR_PAGE_0);
 204
 205         ifmedia_init(&sc->sc_media, 0, dp8390_mediachange, dp8390_mediastatus);
 206         for (i = 0; i < rtl80x9_nmedia; i++)
 207                 ifmedia_add(&sc->sc_media, rtl80x9_media[i], 0, NULL);
 208         ifmedia_set(&sc->sc_media, defmedia);
 209 }