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 1.14 2007/08/14 15:32:32 sephe Exp $
  28  */
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/kernel.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
  43
  44 #include "if_exreg.h"
  45 #include "if_exvar.h"
  46
  47 #include <bus/pccard/pccardvar.h>
  48 #include <bus/pccard/pccarddevs.h>
  49
  50 static const struct pccard_product ex_pccard_products[] = {
  51         PCMCIA_CARD(OLICOM, OC2220, 0),
  52         { NULL }
  53 };
  54
  55 /* Bus Front End Functions */
  56 static int      ex_pccard_match         (device_t);
  57 static int      ex_pccard_probe         (device_t);
  58 static int      ex_pccard_attach        (device_t);
  59 static int      ex_pccard_detach        (device_t);
  60
  61 static device_method_t ex_pccard_methods[] = {
  62         /* Device interface */
  63         DEVMETHOD(device_probe,         pccard_compat_probe),
  64         DEVMETHOD(device_attach,        pccard_compat_attach),
  65         DEVMETHOD(device_detach,        ex_pccard_detach),
  66
  67         /* Card interface */
  68         DEVMETHOD(card_compat_match,    ex_pccard_match),
  69         DEVMETHOD(card_compat_probe,    ex_pccard_probe),
  70         DEVMETHOD(card_compat_attach,   ex_pccard_attach),
  71
  72         { 0, 0 }
  73 };
  74
  75 static driver_t ex_pccard_driver = {
  76         "ex",
  77         ex_pccard_methods,
  78         sizeof(struct ex_softc),
  79 };
  80
  81 extern devclass_t ex_devclass;
  82
  83 DRIVER_MODULE(if_ex, pccard, ex_pccard_driver, ex_devclass, 0, 0);
  84
  85 static int
  86 ex_pccard_match(device_t dev)
  87 {
  88         const struct pccard_product *pp;
  89
  90         if ((pp = pccard_product_lookup(dev, ex_pccard_products,
  91             sizeof(ex_pccard_products[0]), NULL)) != NULL) {
  92                 if (pp->pp_name != NULL)
  93                         device_set_desc(dev, pp->pp_name);
  94                 return 0;
  95         }
  96         return EIO;
  97 }
  98
  99 static int
 100 ex_pccard_probe(device_t dev)
 101 {
 102         u_int           iobase;
 103         u_int           irq;
 104
 105         iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
 106         if (!iobase) {
 107                 kprintf("ex: no iobase?\n");
 108                 return(ENXIO);
 109         }
 110
 111         if (bootverbose)
 112                 kprintf("ex: ex_pccard_probe() found card at 0x%03x\n", iobase);
 113
 114         irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
 115
 116         if (irq == 0) {
 117                 kprintf("ex: invalid IRQ.\n");
 118                 return(ENXIO);
 119         }
 120
 121         return(0);
 122 }
 123
 124 static int
 125 ex_pccard_attach(device_t dev)
 126 {
 127         struct ex_softc *       sc = device_get_softc(dev);
 128         int                     error = 0;
 129         int                     i;
 130         uint8_t                 sum;
 131         const uint8_t   *       ether_addr;
 132
 133         sc->dev = dev;
 134         sc->ioport_rid = 0;
 135         sc->irq_rid = 0;
 136
 137         if ((error = ex_alloc_resources(dev)) != 0) {
 138                 device_printf(dev, "ex_alloc_resources() failed!\n");
 139                 goto bad;
 140         }
 141
 142         /*
 143          * Fill in several fields of the softc structure:
 144          *      - I/O base address.
 145          *      - Hardware Ethernet address.
 146          *      - IRQ number.
 147          */
 148         sc->iobase = rman_get_start(sc->ioport);
 149         sc->irq_no = rman_get_start(sc->irq);
 150
 151         ether_addr = pccard_get_ether(dev);
 152         for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
 153                 sum |= ether_addr[i];
 154         if (sum)
 155                 bcopy(ether_addr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
 156
 157         if ((error = ex_attach(dev)) != 0) {
 158                 device_printf(dev, "ex_attach() failed!\n");
 159                 goto bad;
 160         }
 161
 162         error = bus_setup_intr(dev, sc->irq, INTR_NETSAFE,
 163                                 ex_intr, (void *)sc, &sc->ih,
 164                                 sc->arpcom.ac_if.if_serializer);
 165         if (error) {
 166                 device_printf(dev, "bus_setup_intr() failed!\n");
 167                 goto bad;
 168         }
 169
 170         return(0);
 171 bad:
 172         ex_release_resources(dev);
 173         return (error);
 174 }
 175
 176 static int
 177 ex_pccard_detach(device_t dev)
 178 {
 179         struct ex_softc         *sc = device_get_softc(dev);
 180         struct ifnet            *ifp = &sc->arpcom.ac_if;
 181
 182         lwkt_serialize_enter(ifp->if_serializer);
 183         ex_stop(sc);
 184         ifp->if_flags &= ~IFF_RUNNING;
 185         lwkt_serialize_exit(ifp->if_serializer);
 186
 187         ether_ifdetach(ifp);
 188         ex_release_resources(dev);
 189         return (0);
 190 }