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/isa/if_ne_isapnp.c

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    1 /*      $OpenBSD: if_ne_isapnp.c,v 1.17 2022/04/06 18:59:28 naddy Exp $ */
    2 /*      $NetBSD: if_ne_isapnp.c,v 1.7 1998/07/23 19:30:45 christos Exp $        */
    3 
    4 /*-
    5  * Copyright (c) 1997 The NetBSD Foundation, Inc.
    6  * All rights reserved.
    7  *
    8  * This code is derived from software contributed to The NetBSD Foundation
    9  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
   10  * NASA Ames Research Center and Matt Thomas of the 3am Software Foundry.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   31  * POSSIBILITY OF SUCH DAMAGE.
   32  */
   33 
   34 #include "bpfilter.h"
   35 
   36 #include <sys/param.h>
   37 #include <sys/systm.h>
   38 #include <sys/mbuf.h>
   39 #include <sys/socket.h>
   40 #include <sys/ioctl.h>
   41 #include <sys/errno.h>
   42 #include <sys/syslog.h>
   43 #include <sys/selinfo.h>
   44 #include <sys/device.h>
   45 
   46 #include <net/if.h>
   47 #include <net/if_media.h>
   48 
   49 #include <netinet/in.h>
   50 #include <netinet/if_ether.h>
   51 
   52 #if NBPFILTER > 0
   53 #include <net/bpf.h>
   54 #endif
   55 
   56 #include <machine/intr.h>
   57 #include <machine/bus.h>
   58 
   59 #include <dev/ic/dp8390reg.h>
   60 #include <dev/ic/dp8390var.h>
   61 
   62 #include <dev/ic/ne2000reg.h>
   63 #include <dev/ic/ne2000var.h>
   64 
   65 #include <dev/ic/rtl80x9reg.h>
   66 #include <dev/ic/rtl80x9var.h>
   67 
   68 #include <dev/isa/isavar.h>
   69 
   70 #include <dev/isa/isapnpreg.h>
   71 
   72 static int ne_isapnp_match(struct device *, void *, void *);
   73 static void ne_isapnp_attach(struct device *, struct device *, void *);
   74 
   75 struct ne_isapnp_softc {
   76         struct  ne2000_softc sc_ne2000;         /* real "ne2000" softc */
   77 
   78         /* ISA-specific goo. */
   79         void    *sc_ih;                         /* interrupt cookie */
   80 };
   81 
   82 const struct cfattach ne_isapnp_ca = {
   83         sizeof(struct ne_isapnp_softc), ne_isapnp_match, ne_isapnp_attach
   84 };
   85 
   86 static int
   87 ne_isapnp_match(struct device *parent, void *match, void *aux)
   88 {
   89         return (1);
   90 }
   91 
   92 static void
   93 ne_isapnp_attach(struct device *parent, struct device *self, void *aux)
   94 {
   95         struct ne_isapnp_softc * const isc = (struct ne_isapnp_softc *)self;
   96         struct ne2000_softc * const nsc = &isc->sc_ne2000;
   97         struct dp8390_softc * const dsc = &nsc->sc_dp8390;
   98         struct isa_attach_args * const ipa = aux;
   99         bus_space_tag_t nict;
  100         bus_space_handle_t nich;
  101         bus_space_tag_t asict;
  102         bus_space_handle_t asich;
  103         const char *typestr;
  104         int netype;
  105 
  106         nict = ipa->ia_iot;
  107         nich = ipa->ipa_io[0].h;
  108 
  109         asict = nict;
  110 
  111         if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
  112             NE2000_ASIC_NPORTS, &asich)) {
  113                 printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname);
  114                 return;
  115         }
  116 
  117         dsc->sc_regt = nict;
  118         dsc->sc_regh = nich;
  119 
  120         nsc->sc_asict = asict;
  121         nsc->sc_asich = asich;
  122 
  123         /*
  124          * Detect it again, so we can print some information about the
  125          * interface.
  126          */
  127         netype = ne2000_detect(nsc);
  128         switch (netype) {
  129         case NE2000_TYPE_NE1000:
  130                 typestr = "NE1000";
  131                 break;
  132 
  133         case NE2000_TYPE_NE2000:
  134                 typestr = "NE2000";
  135                 /*
  136                  * Check for a Realtek 8019.
  137                  */
  138                 bus_space_write_1(nict, nich, ED_P0_CR,
  139                     ED_CR_PAGE_0 | ED_CR_STP);
  140                 if (bus_space_read_1(nict, nich, NERTL_RTL0_8019ID0) ==
  141                                                                 RTL0_8019ID0 &&
  142                     bus_space_read_1(nict, nich, NERTL_RTL0_8019ID1) ==
  143                                                                 RTL0_8019ID1) {
  144                         typestr = "NE2000 (RTL8019)";
  145                         dsc->sc_mediachange = rtl80x9_mediachange;
  146                         dsc->sc_mediastatus = rtl80x9_mediastatus;
  147                         dsc->init_card = rtl80x9_init_card;
  148                         dsc->sc_media_init = rtl80x9_media_init;
  149                 }
  150                 break;
  151 
  152         default:
  153                 printf(": where did the card go?!\n");
  154                 return;
  155         }
  156 
  157         printf(": %s", typestr);
  158 
  159         /* This interface is always enabled. */
  160         dsc->sc_enabled = 1;
  161 
  162         /*
  163          * Do generic NE2000 attach.  This will read the station address
  164          * from the EEPROM.
  165          */
  166         ne2000_attach(nsc, NULL);
  167 
  168         /* Establish the interrupt handler. */
  169         isc->sc_ih = isa_intr_establish(ipa->ia_ic, ipa->ipa_irq[0].num,
  170             IST_EDGE, IPL_NET, dp8390_intr, dsc,
  171             dsc->sc_dev.dv_xname);
  172         if (isc->sc_ih == NULL)
  173                 printf(": couldn't establish interrupt handler\n");
  174 }

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