sys/dev/netif/ex/if_ex_pccard.c

   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  *      $DragonFly: src/sys/dev/netif/ex/if_ex_pccard.c,v 1.16 2008/08/17 04:32:33 sephe Exp $
  28  */
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/kernel.h>
  33 #include <sys/interrupt.h>
  34 #include <sys/socket.h>
  35 #include <sys/module.h>
  36 #include <sys/bus.h>
  37 #include <sys/rman.h>
  38 #include <sys/serialize.h>
  39
  40 #include <net/if.h>
  41 #include <net/if_arp.h>
  42 #include <net/if_media.h>
  43
  44
  45 #include "if_exreg.h"
  46 #include "if_exvar.h"
  47
  48 #include <bus/pccard/pccardvar.h>
  49 #include <bus/pccard/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         { 0, 0 }
  74 };
  75
  76 static driver_t ex_pccard_driver = {
  77         "ex",
  78         ex_pccard_methods,
  79         sizeof(struct ex_softc),
  80 };
  81
  82 extern devclass_t ex_devclass;
  83
  84 DRIVER_MODULE(if_ex, pccard, ex_pccard_driver, ex_devclass, 0, 0);
  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         error = bus_setup_intr(dev, sc->irq, INTR_MPSAFE,
 165                                 ex_intr, (void *)sc, &sc->ih,
 166                                 ifp->if_serializer);
 167         if (error) {
 168                 device_printf(dev, "bus_setup_intr() failed!\n");
 169                 goto bad;
 170         }
 171
 172         ifp->if_cpuid = ithread_cpuid(rman_get_start(sc->irq));
 173         KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
 174
 175         return(0);
 176 bad:
 177         ex_release_resources(dev);
 178         return (error);
 179 }
 180
 181 static int
 182 ex_pccard_detach(device_t dev)
 183 {
 184         struct ex_softc         *sc = device_get_softc(dev);
 185         struct ifnet            *ifp = &sc->arpcom.ac_if;
 186
 187         lwkt_serialize_enter(ifp->if_serializer);
 188         ex_stop(sc);
 189         ifp->if_flags &= ~IFF_RUNNING;
 190         lwkt_serialize_exit(ifp->if_serializer);
 191
 192         ether_ifdetach(ifp);
 193         ex_release_resources(dev);
 194         return (0);
 195 }