if_ex_pccard.c

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    1 /*-
    2  * Copyright (c) 2000 Mitsuru IWASAKI
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  *      $FreeBSD: src/sys/dev/ex/if_ex_pccard.c,v 1.2.2.1 2001/03/05 05:33:20 imp Exp $
   27  */
   28 
   29 #include <sys/param.h>
   30 #include <sys/systm.h>
   31 #include <sys/kernel.h>
   32 #include <sys/interrupt.h>
   33 #include <sys/socket.h>
   34 #include <sys/module.h>
   35 #include <sys/bus.h>
   36 #include <sys/rman.h>
   37 #include <sys/serialize.h>
   38 
   39 #include <net/if.h>
   40 #include <net/if_arp.h>
   41 #include <net/if_media.h> 
   42 #include <net/ifq_var.h>
   43 
   44 #include "if_exreg.h"
   45 #include "if_exvar.h"
   46 
   47 #include <bus/pccard/pccardvar.h>
   48 
   49 #include "pccarddevs.h"
   50 
   51 static const struct pccard_product ex_pccard_products[] = {
   52         PCMCIA_CARD(OLICOM, OC2220, 0),
   53         { NULL }
   54 };
   55 
   56 /* Bus Front End Functions */
   57 static int      ex_pccard_match         (device_t);
   58 static int      ex_pccard_probe         (device_t);
   59 static int      ex_pccard_attach        (device_t);
   60 static int      ex_pccard_detach        (device_t);
   61 
   62 static device_method_t ex_pccard_methods[] = {
   63         /* Device interface */
   64         DEVMETHOD(device_probe,         pccard_compat_probe),
   65         DEVMETHOD(device_attach,        pccard_compat_attach),
   66         DEVMETHOD(device_detach,        ex_pccard_detach),
   67 
   68         /* Card interface */
   69         DEVMETHOD(card_compat_match,    ex_pccard_match),
   70         DEVMETHOD(card_compat_probe,    ex_pccard_probe),
   71         DEVMETHOD(card_compat_attach,   ex_pccard_attach),
   72 
   73         DEVMETHOD_END
   74 };
   75 
   76 static driver_t ex_pccard_driver = {
   77         "ex",
   78         ex_pccard_methods,
   79         sizeof(struct ex_softc),
   80 };
   81 
   82 devclass_t ex_devclass;
   83 
   84 DRIVER_MODULE(if_ex, pccard, ex_pccard_driver, ex_devclass, NULL, NULL);
   85 
   86 static int
   87 ex_pccard_match(device_t dev)
   88 {
   89         const struct pccard_product *pp;
   90 
   91         if ((pp = pccard_product_lookup(dev, ex_pccard_products,
   92             sizeof(ex_pccard_products[0]), NULL)) != NULL) {
   93                 if (pp->pp_name != NULL)
   94                         device_set_desc(dev, pp->pp_name);
   95                 return 0;
   96         }
   97         return EIO;
   98 }
   99 
  100 static int
  101 ex_pccard_probe(device_t dev)
  102 {
  103         u_int           iobase;
  104         u_int           irq;
  105 
  106         iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
  107         if (!iobase) {
  108                 kprintf("ex: no iobase?\n");
  109                 return(ENXIO);
  110         }
  111 
  112         if (bootverbose)
  113                 kprintf("ex: ex_pccard_probe() found card at 0x%03x\n", iobase);
  114 
  115         irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
  116 
  117         if (irq == 0) {
  118                 kprintf("ex: invalid IRQ.\n");
  119                 return(ENXIO);
  120         }
  121 
  122         return(0);
  123 }
  124 
  125 static int
  126 ex_pccard_attach(device_t dev)
  127 {
  128         struct ex_softc *       sc = device_get_softc(dev);
  129         struct ifnet *          ifp = &sc->arpcom.ac_if;
  130         int                     error = 0;
  131         int                     i;
  132         uint8_t                 sum;
  133         const uint8_t   *       ether_addr;
  134 
  135         sc->dev = dev;
  136         sc->ioport_rid = 0;
  137         sc->irq_rid = 0;
  138 
  139         if ((error = ex_alloc_resources(dev)) != 0) {
  140                 device_printf(dev, "ex_alloc_resources() failed!\n");
  141                 goto bad;
  142         }
  143 
  144         /*
  145          * Fill in several fields of the softc structure:
  146          *      - I/O base address.
  147          *      - Hardware Ethernet address.
  148          *      - IRQ number.
  149          */
  150         sc->iobase = rman_get_start(sc->ioport);
  151         sc->irq_no = rman_get_start(sc->irq);
  152 
  153         ether_addr = pccard_get_ether(dev);
  154         for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
  155                 sum |= ether_addr[i];
  156         if (sum)
  157                 bcopy(ether_addr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
  158 
  159         if ((error = ex_attach(dev)) != 0) {
  160                 device_printf(dev, "ex_attach() failed!\n");
  161                 goto bad;
  162         }
  163 
  164         ifq_set_cpuid(&ifp->if_snd, rman_get_cpuid(sc->irq));
  165 
  166         error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
  167                                 ex_intr, (void *)sc, &sc->ih, 
  168                                 ifp->if_serializer);
  169         if (error) {
  170                 device_printf(dev, "bus_setup_intr() failed!\n");
  171                 goto bad;
  172         }
  173 
  174         return(0);
  175 bad:
  176         ex_release_resources(dev);
  177         return (error);
  178 }
  179 
  180 static int
  181 ex_pccard_detach(device_t dev)
  182 {
  183         struct ex_softc         *sc = device_get_softc(dev);
  184         struct ifnet            *ifp = &sc->arpcom.ac_if;
  185 
  186         lwkt_serialize_enter(ifp->if_serializer);
  187         ex_stop(sc);
  188         ifp->if_flags &= ~IFF_RUNNING;
  189         lwkt_serialize_exit(ifp->if_serializer);
  190 
  191         ether_ifdetach(ifp);
  192         ex_release_resources(dev);
  193         return (0);
  194 }

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FreeBSD/Linux Kernel Cross Reference sys/dev/netif/ex/if_ex_pccard.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/netif/ex/if_ex_pccard.c