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/eisa/depca_eisa.c

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    1 /*      $NetBSD: depca_eisa.c,v 1.7 2005/02/27 00:26:59 perry Exp $     */
    2 
    3 /*-
    4  * Copyright (c) 2000 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 /*
   40  * EISA bus front-end for the Digital DEPCA Ethernet controller.
   41  */
   42 
   43 #include <sys/cdefs.h>
   44 __KERNEL_RCSID(0, "$NetBSD: depca_eisa.c,v 1.7 2005/02/27 00:26:59 perry Exp $");
   45 
   46 #include "opt_inet.h"
   47 #include "bpfilter.h"
   48 
   49 #include <sys/param.h>
   50 #include <sys/systm.h>
   51 #include <sys/mbuf.h>
   52 #include <sys/syslog.h>
   53 #include <sys/socket.h>
   54 #include <sys/device.h>
   55 
   56 #include <net/if.h>
   57 #include <net/if_media.h>
   58 #include <net/if_ether.h>
   59 
   60 #ifdef INET
   61 #include <netinet/in.h>
   62 #include <netinet/if_inarp.h>
   63 #endif
   64 
   65 #include <machine/bus.h>
   66 #include <machine/intr.h>
   67 
   68 #include <dev/eisa/eisareg.h>
   69 #include <dev/eisa/eisavar.h>
   70 #include <dev/eisa/eisadevs.h>
   71 
   72 #include <dev/ic/lancereg.h>
   73 #include <dev/ic/lancevar.h>
   74 #include <dev/ic/am7990reg.h>
   75 #include <dev/ic/am7990var.h>
   76 #include <dev/ic/depcareg.h>
   77 #include <dev/ic/depcavar.h>
   78 
   79 static int      depca_eisa_match(struct device *, struct cfdata *, void *);
   80 static void     depca_eisa_attach(struct device *, struct device *, void *);
   81 
   82 struct depca_eisa_softc {
   83         struct depca_softc sc_depca;
   84 
   85         eisa_chipset_tag_t sc_ec;
   86         int sc_irq;
   87         int sc_ist;
   88 };
   89 
   90 CFATTACH_DECL(depca_eisa, sizeof(struct depca_eisa_softc),
   91     depca_eisa_match, depca_eisa_attach, NULL, NULL);
   92 
   93 static void     *depca_eisa_intr_establish(struct depca_softc *,
   94                                            struct lance_softc *);
   95 
   96 static int
   97 depca_eisa_match(struct device *parent, struct cfdata *match, void *aux)
   98 {
   99         struct eisa_attach_args *ea = aux;
  100 
  101         return (strcmp(ea->ea_idstring, "DEC4220") == 0);
  102 }
  103 
  104 #define DEPCA_ECU_FUNC_NETINTR  0
  105 #define DEPCA_ECU_FUNC_NETBUF   1
  106 
  107 static void
  108 depca_eisa_attach(struct device *parent, struct device *self, void *aux)
  109 {
  110         struct depca_softc *sc = (void *) self;
  111         struct depca_eisa_softc *esc = (void *) self;
  112         struct eisa_attach_args *ea = aux;
  113         struct eisa_cfg_mem ecm;
  114         struct eisa_cfg_irq eci;
  115 
  116         printf(": DEC DE422 Ethernet\n");
  117 
  118         sc->sc_iot = ea->ea_iot;
  119         sc->sc_memt = ea->ea_memt;
  120 
  121         esc->sc_ec = ea->ea_ec;
  122 
  123         sc->sc_intr_establish = depca_eisa_intr_establish;
  124 
  125         if (eisa_conf_read_mem(ea->ea_ec, ea->ea_slot,
  126             DEPCA_ECU_FUNC_NETBUF, 0, &ecm) != 0) {
  127                 printf("%s: unable to find network buffer\n",
  128                     sc->sc_dev.dv_xname);
  129                 return;
  130         }
  131 
  132         printf("%s: shared memory at 0x%lx-0x%lx\n", sc->sc_dev.dv_xname,
  133             ecm.ecm_addr, ecm.ecm_addr + ecm.ecm_size - 1);
  134 
  135         sc->sc_memsize = ecm.ecm_size;
  136 
  137         if (bus_space_map(sc->sc_iot, EISA_SLOT_ADDR(ea->ea_slot) + 0xc00, 16,
  138             0, &sc->sc_ioh) != 0) {
  139                 printf("%s: unable to map i/o space\n", sc->sc_dev.dv_xname);
  140                 return;
  141         }
  142         if (bus_space_map(sc->sc_memt, ecm.ecm_addr, sc->sc_memsize,
  143             0, &sc->sc_memh) != 0) {
  144                 printf("%s: unable to map memory space\n", sc->sc_dev.dv_xname);
  145                 return;
  146         }
  147 
  148         if (eisa_conf_read_irq(ea->ea_ec, ea->ea_slot,
  149             DEPCA_ECU_FUNC_NETINTR, 0, &eci) != 0) {
  150                 printf("%s: unable to determine IRQ\n",
  151                     sc->sc_dev.dv_xname);
  152                 return;
  153         }
  154 
  155         esc->sc_irq = eci.eci_irq;
  156         esc->sc_ist = eci.eci_ist;
  157 
  158         depca_attach(sc);
  159 }
  160 
  161 static void *
  162 depca_eisa_intr_establish(struct depca_softc *parent, struct lance_softc *child)
  163 {
  164         struct depca_eisa_softc *esc = (void *) parent;
  165         eisa_intr_handle_t ih;
  166         const char *intrstr;
  167         void *rv;
  168 
  169         if (eisa_intr_map(esc->sc_ec, esc->sc_irq, &ih)) {
  170                 printf("%s: unable to map interrupt (%d)\n",
  171                     parent->sc_dev.dv_xname, esc->sc_irq);
  172                 return (NULL);
  173         }
  174         intrstr = eisa_intr_string(esc->sc_ec, ih);
  175         rv = eisa_intr_establish(esc->sc_ec, ih, esc->sc_ist, IPL_NET,
  176             (esc->sc_ist == IST_LEVEL) ? am7990_intr : depca_intredge, child);
  177         if (rv == NULL) {
  178                 printf("%s: unable to establish interrupt",
  179                     parent->sc_dev.dv_xname);
  180                 if (intrstr != NULL)
  181                         printf(" at %s", intrstr);
  182                 printf("\n");
  183                 return (NULL);
  184         }
  185         if (intrstr != NULL)
  186                 printf("%s: interrupting at %s\n", parent->sc_dev.dv_xname,
  187                     intrstr);
  188 
  189         return (rv);
  190 }

Cache object: d24bda6d1285d5b367bac6f80edb3f7b


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