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_isa.c

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    1 /*      $NetBSD: if_ne_isa.c,v 1.17 2004/02/13 10:05:50 wiz Exp $       */
    2 
    3 /*-
    4  * Copyright (c) 1997, 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  * 3. All advertising materials mentioning features or use of this software
   20  *    must display the following acknowledgement:
   21  *      This product includes software developed by the NetBSD
   22  *      Foundation, Inc. and its contributors.
   23  * 4. Neither the name of The NetBSD Foundation nor the names of its
   24  *    contributors may be used to endorse or promote products derived
   25  *    from this software without specific prior written permission.
   26  *
   27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   37  * POSSIBILITY OF SUCH DAMAGE.
   38  */
   39 
   40 #include <sys/cdefs.h>
   41 __KERNEL_RCSID(0, "$NetBSD: if_ne_isa.c,v 1.17 2004/02/13 10:05:50 wiz Exp $");
   42 
   43 #include <sys/param.h>
   44 #include <sys/systm.h>
   45 #include <sys/mbuf.h>
   46 #include <sys/socket.h>
   47 #include <sys/ioctl.h>
   48 #include <sys/errno.h>
   49 #include <sys/syslog.h>
   50 #include <sys/select.h>
   51 #include <sys/device.h>
   52 
   53 #include <net/if.h>
   54 #include <net/if_dl.h>
   55 #include <net/if_ether.h>
   56 #include <net/if_media.h>
   57 
   58 #include <machine/intr.h>
   59 #include <machine/bus.h>
   60 
   61 #include <dev/ic/dp8390reg.h>
   62 #include <dev/ic/dp8390var.h>
   63 
   64 #include <dev/ic/ne2000reg.h>
   65 #include <dev/ic/ne2000var.h>
   66 
   67 #include <dev/ic/rtl80x9reg.h>
   68 #include <dev/ic/rtl80x9var.h>          
   69 
   70 #include <dev/isa/isavar.h>
   71 
   72 int     ne_isa_match __P((struct device *, struct cfdata *, void *));
   73 void    ne_isa_attach __P((struct device *, struct device *, void *));
   74 
   75 struct ne_isa_softc {
   76         struct  ne2000_softc sc_ne2000;         /* real "ne2000" softc */
   77 
   78         /* ISA-specific goo. */
   79         void    *sc_ih;                         /* interrupt cookie */
   80 };
   81 
   82 CFATTACH_DECL(ne_isa, sizeof(struct ne_isa_softc),
   83     ne_isa_match, ne_isa_attach, NULL, NULL);
   84 
   85 int
   86 ne_isa_match(parent, match, aux)
   87         struct device *parent;
   88         struct cfdata *match;
   89         void *aux;
   90 {
   91         struct isa_attach_args *ia = aux;
   92         bus_space_tag_t nict = ia->ia_iot;
   93         bus_space_handle_t nich;
   94         bus_space_tag_t asict;
   95         bus_space_handle_t asich;
   96         int rv = 0;
   97 
   98         if (ia->ia_nio < 1)
   99                 return (0);
  100         if (ia->ia_nirq < 1)
  101                 return (0);
  102 
  103         if (ISA_DIRECT_CONFIG(ia))
  104                 return (0);
  105 
  106         /* Disallow wildcarded values. */
  107         if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT)
  108                 return (0);
  109         if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT)
  110                 return (0);
  111 
  112         /* Make sure this is a valid NE[12]000 i/o address. */
  113         if ((ia->ia_io[0].ir_addr & 0x1f) != 0)
  114                 return (0);
  115 
  116         /* Map i/o space. */
  117         if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS, 0, &nich))
  118                 return (0);
  119 
  120         asict = nict;
  121         if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
  122             NE2000_ASIC_NPORTS, &asich))
  123                 goto out;
  124 
  125         /* Look for an NE2000-compatible card. */
  126         rv = ne2000_detect(nict, nich, asict, asich);
  127 
  128         if (rv) {
  129                 ia->ia_nio = 1;
  130                 ia->ia_io[0].ir_size = NE2000_NPORTS;
  131 
  132                 ia->ia_nirq = 1;
  133 
  134                 ia->ia_niomem = 0;
  135                 ia->ia_ndrq = 0;
  136         }
  137 
  138  out:
  139         bus_space_unmap(nict, nich, NE2000_NPORTS);
  140         return (rv);
  141 }
  142 
  143 void
  144 ne_isa_attach(parent, self, aux)
  145         struct device *parent, *self;
  146         void *aux;
  147 {
  148         struct ne_isa_softc *isc = (struct ne_isa_softc *)self;
  149         struct ne2000_softc *nsc = &isc->sc_ne2000;
  150         struct dp8390_softc *dsc = &nsc->sc_dp8390;
  151         struct isa_attach_args *ia = aux;
  152         bus_space_tag_t nict = ia->ia_iot;
  153         bus_space_handle_t nich;
  154         bus_space_tag_t asict = nict;
  155         bus_space_handle_t asich;
  156         const char *typestr;
  157         int netype;
  158 
  159         printf("\n");
  160 
  161         /* Map i/o space. */
  162         if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS,
  163             0, &nich)) {
  164                 printf("%s: can't map i/o space\n", dsc->sc_dev.dv_xname);
  165                 return;
  166         }
  167 
  168         if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
  169             NE2000_ASIC_NPORTS, &asich)) {
  170                 printf("%s: can't subregion i/o space\n", dsc->sc_dev.dv_xname);
  171                 return;
  172         }
  173 
  174         dsc->sc_regt = nict;
  175         dsc->sc_regh = nich;
  176 
  177         nsc->sc_asict = asict;
  178         nsc->sc_asich = asich;
  179 
  180         /*
  181          * Detect it again, so we can print some information about the
  182          * interface.
  183          */
  184         netype = ne2000_detect(nict, nich, asict, asich);
  185         switch (netype) {
  186         case NE2000_TYPE_NE1000:
  187                 typestr = "NE1000";
  188                 break;
  189 
  190         case NE2000_TYPE_NE2000:
  191                 typestr = "NE2000";
  192                 /*
  193                  * Check for a Realtek 8019.
  194                  */
  195                 bus_space_write_1(nict, nich, ED_P0_CR,
  196                     ED_CR_PAGE_0 | ED_CR_STP);
  197                 if (bus_space_read_1(nict, nich, NERTL_RTL0_8019ID0) ==
  198                                                                 RTL0_8019ID0 &&
  199                     bus_space_read_1(nict, nich, NERTL_RTL0_8019ID1) ==
  200                                                                 RTL0_8019ID1) {
  201                         typestr = "NE2000 (RTL8019)";
  202                         dsc->sc_mediachange = rtl80x9_mediachange;
  203                         dsc->sc_mediastatus = rtl80x9_mediastatus;
  204                         dsc->init_card = rtl80x9_init_card;
  205                         dsc->sc_media_init = rtl80x9_media_init;
  206                 }
  207                 break;
  208 
  209         default:
  210                 printf("%s: where did the card go?!\n", dsc->sc_dev.dv_xname);
  211                 return;
  212         }
  213 
  214         printf("%s: %s Ethernet\n", dsc->sc_dev.dv_xname, typestr);
  215 
  216         /* This interface is always enabled. */
  217         dsc->sc_enabled = 1;
  218 
  219         /*
  220          * Do generic NE2000 attach.  This will read the station address
  221          * from the EEPROM.
  222          */
  223         ne2000_attach(nsc, NULL);
  224 
  225         /* Establish the interrupt handler. */
  226         isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
  227             IST_EDGE, IPL_NET, dp8390_intr, dsc);
  228         if (isc->sc_ih == NULL)
  229                 printf("%s: couldn't establish interrupt handler\n",
  230                     dsc->sc_dev.dv_xname);
  231 }

Cache object: f88bbf60f5ecd9ca5756ac56b2d83584


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