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 1.10 2005/11/28 17:13:42 dillon Exp $
  28  */
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/kernel.h>
  33 #include <sys/socket.h>
  34
  35 #include <sys/module.h>
  36 #include <sys/bus.h>
  37 #include <sys/serialize.h>
  38
  39 #include <machine/bus.h>
  40 #include <machine/resource.h>
  41 #include <sys/rman.h>
  42
  43 #include <net/if.h>
  44 #include <net/if_arp.h>
  45 #include <net/if_media.h>
  46
  47
  48 #include "if_exreg.h"
  49 #include "if_exvar.h"
  50
  51 #include <bus/pccard/pccardvar.h>
  52 #include <bus/pccard/pccarddevs.h>
  53
  54 static const struct pccard_product ex_pccard_products[] = {
  55         PCMCIA_CARD(OLICOM, OC2220, 0),
  56         { NULL }
  57 };
  58
  59 /* Bus Front End Functions */
  60 static int      ex_pccard_match         (device_t);
  61 static int      ex_pccard_probe         (device_t);
  62 static int      ex_pccard_attach        (device_t);
  63 static int      ex_pccard_detach        (device_t);
  64
  65 static device_method_t ex_pccard_methods[] = {
  66         /* Device interface */
  67         DEVMETHOD(device_probe,         pccard_compat_probe),
  68         DEVMETHOD(device_attach,        pccard_compat_attach),
  69         DEVMETHOD(device_detach,        ex_pccard_detach),
  70
  71         /* Card interface */
  72         DEVMETHOD(card_compat_match,    ex_pccard_match),
  73         DEVMETHOD(card_compat_probe,    ex_pccard_probe),
  74         DEVMETHOD(card_compat_attach,   ex_pccard_attach),
  75
  76         { 0, 0 }
  77 };
  78
  79 static driver_t ex_pccard_driver = {
  80         "ex",
  81         ex_pccard_methods,
  82         sizeof(struct ex_softc),
  83 };
  84
  85 extern devclass_t ex_devclass;
  86
  87 DRIVER_MODULE(if_ex, pccard, ex_pccard_driver, ex_devclass, 0, 0);
  88
  89 static int
  90 ex_pccard_match(device_t dev)
  91 {
  92         const struct pccard_product *pp;
  93
  94         if ((pp = pccard_product_lookup(dev, ex_pccard_products,
  95             sizeof(ex_pccard_products[0]), NULL)) != NULL) {
  96                 if (pp->pp_name != NULL)
  97                         device_set_desc(dev, pp->pp_name);
  98                 return 0;
  99         }
 100         return EIO;
 101 }
 102
 103 static int
 104 ex_pccard_probe(device_t dev)
 105 {
 106         u_int           iobase;
 107         u_int           irq;
 108
 109         iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
 110         if (!iobase) {
 111                 printf("ex: no iobase?\n");
 112                 return(ENXIO);
 113         }
 114
 115         if (bootverbose)
 116                 printf("ex: ex_pccard_probe() found card at 0x%03x\n", iobase);
 117
 118         irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
 119
 120         if (irq == 0) {
 121                 printf("ex: invalid IRQ.\n");
 122                 return(ENXIO);
 123         }
 124
 125         return(0);
 126 }
 127
 128 static int
 129 ex_pccard_attach(device_t dev)
 130 {
 131         struct ex_softc *       sc = device_get_softc(dev);
 132         int                     error = 0;
 133         int                     i;
 134         uint8_t                 sum;
 135         uint8_t *               ether_addr;
 136
 137         sc->dev = dev;
 138         sc->ioport_rid = 0;
 139         sc->irq_rid = 0;
 140
 141         if ((error = ex_alloc_resources(dev)) != 0) {
 142                 device_printf(dev, "ex_alloc_resources() failed!\n");
 143                 goto bad;
 144         }
 145
 146         /*
 147          * Fill in several fields of the softc structure:
 148          *      - I/O base address.
 149          *      - Hardware Ethernet address.
 150          *      - IRQ number.
 151          */
 152         sc->iobase = rman_get_start(sc->ioport);
 153         sc->irq_no = rman_get_start(sc->irq);
 154
 155         ether_addr = pccard_get_ether(dev);
 156         for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
 157                 sum |= ether_addr[i];
 158         if (sum)
 159                 bcopy(ether_addr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
 160
 161         if ((error = ex_attach(dev)) != 0) {
 162                 device_printf(dev, "ex_attach() failed!\n");
 163                 goto bad;
 164         }
 165
 166         error = bus_setup_intr(dev, sc->irq, INTR_NETSAFE,
 167                                 ex_intr, (void *)sc, &sc->ih,
 168                                 sc->arpcom.ac_if.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(sc->arpcom.ac_if.if_serializer);
 187         ex_stop(sc);
 188         ifp->if_flags &= ~IFF_RUNNING;
 189         if_detach(ifp);
 190         ex_release_resources(dev);
 191         lwkt_serialize_exit(sc->arpcom.ac_if.if_serializer);
 192         return (0);
 193 }