The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/dl10019.c

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    1 /*      $NetBSD: dl10019.c,v 1.7 2002/10/22 00:01:55 fair Exp $ */
    2 
    3 /*-
    4  * Copyright (c) 2001 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.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *      This product includes software developed by the NetBSD
   21  *      Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 #include <sys/cdefs.h>
   40 __KERNEL_RCSID(0, "$NetBSD: dl10019.c,v 1.7 2002/10/22 00:01:55 fair Exp $");
   41 
   42 #include <sys/param.h>
   43 #include <sys/systm.h>
   44 #include <sys/mbuf.h>
   45 #include <sys/syslog.h>
   46 #include <sys/socket.h>
   47 #include <sys/device.h>
   48 
   49 #include <net/if.h>
   50 #include <net/if_ether.h>
   51 #include <net/if_media.h>
   52 
   53 #include <machine/bus.h>
   54 #include <machine/intr.h>
   55 
   56 #include <dev/mii/miivar.h>
   57 #include <dev/mii/mii.h>
   58 #include <dev/mii/mii_bitbang.h>
   59 
   60 #include <dev/ic/dp8390reg.h>
   61 #include <dev/ic/dp8390var.h>
   62 
   63 #include <dev/ic/ne2000reg.h>
   64 #include <dev/ic/ne2000var.h>
   65 
   66 #include <dev/ic/dl10019reg.h>
   67 #include <dev/ic/dl10019var.h>
   68 
   69 int     dl10019_mii_readreg(struct device *, int, int);
   70 void    dl10019_mii_writereg(struct device *, int, int, int);
   71 void    dl10019_mii_statchg(struct device *);
   72 
   73 /*
   74  * MII bit-bang glue.
   75  */
   76 u_int32_t dl10019_mii_bitbang_read(struct device *);
   77 void dl10019_mii_bitbang_write(struct device *, u_int32_t);
   78 
   79 const struct mii_bitbang_ops dl10019_mii_bitbang_ops = {
   80         dl10019_mii_bitbang_read,
   81         dl10019_mii_bitbang_write,
   82         {
   83                 DL0_GPIO_MII_DATAOUT,   /* MII_BIT_MDO */
   84                 DL0_GPIO_MII_DATAIN,    /* MII_BIT_MDI */
   85                 DL0_GPIO_MII_CLK,       /* MII_BIT_MDC */
   86                 DL0_19_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
   87                 0,                      /* MII_BIT_DIR_PHY_HOST */
   88         }
   89 };
   90 
   91 const struct mii_bitbang_ops dl10022_mii_bitbang_ops = {
   92         dl10019_mii_bitbang_read,
   93         dl10019_mii_bitbang_write,
   94         {
   95                 DL0_GPIO_MII_DATAOUT,   /* MII_BIT_MDO */
   96                 DL0_GPIO_MII_DATAIN,    /* MII_BIT_MDI */
   97                 DL0_GPIO_MII_CLK,       /* MII_BIT_MDC */
   98                 DL0_22_GPIO_MII_DIROUT, /* MII_BIT_DIR_HOST_PHY */
   99                 0,                      /* MII_BIT_DIR_PHY_HOST */
  100         }
  101 };
  102 
  103 static void
  104 dl10019_mii_reset(struct dp8390_softc *sc)
  105 {
  106         struct ne2000_softc *nsc = (void *) sc;
  107         int i;
  108 
  109         if (nsc->sc_type != NE2000_TYPE_DL10022)
  110                 return;
  111 
  112         for (i = 0; i < 2; i++) {
  113                 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
  114                     0x08);
  115                 delay(1);
  116                 bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
  117                     0x0c);
  118                 delay(1);
  119         }
  120         bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO, 0x00);
  121 }
  122 
  123 void
  124 dl10019_media_init(struct dp8390_softc *sc)
  125 {
  126         struct ifnet *ifp = &sc->sc_ec.ec_if;
  127 
  128         sc->sc_mii.mii_ifp = ifp;
  129         sc->sc_mii.mii_readreg = dl10019_mii_readreg;
  130         sc->sc_mii.mii_writereg = dl10019_mii_writereg;
  131         sc->sc_mii.mii_statchg = dl10019_mii_statchg;
  132         ifmedia_init(&sc->sc_mii.mii_media, IFM_IMASK, dp8390_mediachange,
  133             dp8390_mediastatus);
  134 
  135         dl10019_mii_reset(sc);
  136 
  137         mii_attach(&sc->sc_dev, &sc->sc_mii, 0xffffffff, MII_PHY_ANY,
  138             MII_OFFSET_ANY, 0);
  139 
  140         if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) {
  141                 ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE, 0, NULL);
  142                 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_NONE);
  143         } else
  144                 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER|IFM_AUTO);
  145 }
  146 
  147 void
  148 dl10019_media_fini(struct dp8390_softc *sc)
  149 {
  150 
  151         mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY);
  152 }
  153 
  154 int
  155 dl10019_mediachange(struct dp8390_softc *sc)
  156 {
  157 
  158         mii_mediachg(&sc->sc_mii);
  159         return (0);
  160 }
  161 
  162 void
  163 dl10019_mediastatus(struct dp8390_softc *sc, struct ifmediareq *ifmr)
  164 {
  165 
  166         mii_pollstat(&sc->sc_mii);
  167         ifmr->ifm_status = sc->sc_mii.mii_media_status;
  168         ifmr->ifm_active = sc->sc_mii.mii_media_active;
  169 }
  170 
  171 void
  172 dl10019_init_card(struct dp8390_softc *sc)
  173 {
  174 
  175         dl10019_mii_reset(sc);
  176         mii_mediachg(&sc->sc_mii);
  177 }
  178 
  179 void
  180 dl10019_stop_card(struct dp8390_softc *sc)
  181 {
  182 
  183         mii_down(&sc->sc_mii);
  184 }
  185 
  186 u_int32_t
  187 dl10019_mii_bitbang_read(struct device *self)
  188 {
  189         struct dp8390_softc *sc = (void *) self;
  190 
  191         /* We're already in Page 0. */
  192         return (bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO) &
  193             ~DL0_GPIO_PRESERVE);
  194 }
  195 
  196 void
  197 dl10019_mii_bitbang_write(struct device *self, u_int32_t val)
  198 {
  199         struct dp8390_softc *sc = (void *) self;
  200         u_int8_t gpio;
  201 
  202         /* We're already in Page 0. */
  203         gpio = bus_space_read_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO);
  204         bus_space_write_1(sc->sc_regt, sc->sc_regh, NEDL_DL0_GPIO,
  205             (val & ~DL0_GPIO_PRESERVE) | (gpio & DL0_GPIO_PRESERVE));
  206 }
  207 
  208 int
  209 dl10019_mii_readreg(struct device *self, int phy, int reg)
  210 {
  211         struct ne2000_softc *nsc = (void *) self;
  212         const struct mii_bitbang_ops *ops;
  213         int val;
  214 
  215         ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
  216             &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
  217 
  218         val = mii_bitbang_readreg(self, ops, phy, reg);
  219 
  220         return (val);
  221 }
  222 
  223 void
  224 dl10019_mii_writereg(struct device *self, int phy, int reg, int val)
  225 {
  226         struct ne2000_softc *nsc = (void *) self;
  227         const struct mii_bitbang_ops *ops;
  228 
  229         ops = (nsc->sc_type == NE2000_TYPE_DL10022) ?
  230             &dl10022_mii_bitbang_ops : &dl10019_mii_bitbang_ops;
  231 
  232         mii_bitbang_writereg(self, ops, phy, reg, val);
  233 }
  234 
  235 void
  236 dl10019_mii_statchg(struct device *self)
  237 {
  238         struct dp8390_softc *sc = (void *) self;
  239         struct ne2000_softc *nsc = (void *) self;
  240 
  241         /*
  242          * Disable collision detection on the DL10022 if
  243          * we are on a full-duplex link.
  244          */
  245         if (nsc->sc_type == NE2000_TYPE_DL10022) {
  246                 u_int8_t diag;
  247 
  248                 if (sc->sc_mii.mii_media_active & IFM_FDX)
  249                         diag = DL0_DIAG_NOCOLLDETECT;
  250                 else
  251                         diag = 0;
  252                 bus_space_write_1(sc->sc_regt, sc->sc_regh,
  253                     NEDL_DL0_DIAG, diag);
  254         }
  255 }

Cache object: 7fe0d0f85b71083a0d21d6dcd9ddd941


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