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/sn/if_sn_pccard.c

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    1 /*-
    2  * Copyright (c) 1999 M. Warner Losh <imp@village.org> 
    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 ``AS IS'' AND ANY EXPRESS OR
   15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   24  */
   25 /*
   26  * Modifications for Megahertz X-Jack Ethernet Card (XJ-10BT)
   27  * 
   28  * Copyright (c) 1996 by Tatsumi Hosokawa <hosokawa@jp.FreeBSD.org>
   29  *                       BSD-nomads, Tokyo, Japan.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD: src/sys/dev/sn/if_sn_pccard.c,v 1.25.2.1 2005/02/03 00:36:06 imp Exp $");
   34 
   35 #include <sys/param.h>
   36 #include <sys/bus.h>
   37 #include <sys/kernel.h>
   38 #include <sys/module.h>
   39 #include <sys/socket.h>
   40 #include <sys/systm.h>
   41 
   42 #include <net/ethernet.h> 
   43 #include <net/if.h> 
   44 #include <net/if_arp.h>
   45 
   46 #include <machine/bus.h>
   47 
   48 #include <dev/pccard/pccardvar.h>
   49 #include <dev/pccard/pccard_cis.h>
   50 #include <dev/sn/if_snvar.h>
   51 
   52 #include "card_if.h"
   53 #include "pccarddevs.h"
   54 
   55 static const struct pccard_product sn_pccard_products[] = {
   56         PCMCIA_CARD(DSPSI, XJACK, 0),
   57         PCMCIA_CARD(NEWMEDIA, BASICS, 0),
   58 #if 0
   59         PCMCIA_CARD(SMC, 8020BT, 0),
   60 #endif
   61         { NULL }
   62 };
   63 
   64 static int
   65 sn_pccard_match(device_t dev)
   66 {
   67         const struct pccard_product *pp;
   68         int             error;
   69         uint32_t        fcn = PCCARD_FUNCTION_UNSPEC;
   70 
   71         /* Make sure we're a network function */
   72         error = pccard_get_function(dev, &fcn);
   73         if (error != 0)
   74                 return (error);
   75         if (fcn != PCCARD_FUNCTION_NETWORK)
   76                 return (ENXIO);
   77 
   78         if ((pp = pccard_product_lookup(dev, sn_pccard_products,
   79             sizeof(sn_pccard_products[0]), NULL)) != NULL) {
   80                 if (pp->pp_name != NULL)
   81                         device_set_desc(dev, pp->pp_name);
   82                 return 0;
   83         }
   84         return EIO;
   85 }
   86 
   87 static int
   88 sn_pccard_probe(device_t dev)
   89 {
   90         int err;
   91 
   92         err = sn_probe(dev, 1);
   93         return (err);
   94 }
   95 
   96 static int
   97 sn_pccard_ascii_enaddr(const char *str, u_char *enet)
   98 {
   99         uint8_t digit;
  100         int i;
  101                 
  102         memset(enet, 0, ETHER_ADDR_LEN);
  103          
  104         for (i = 0, digit = 0; i < (ETHER_ADDR_LEN * 2); i++) {
  105                 if (str[i] >= '' && str[i] <= '9')
  106                         digit |= str[i] - '';
  107                 else if (str[i] >= 'a' && str[i] <= 'f')
  108                         digit |= (str[i] - 'a') + 10;
  109                 else if (str[i] >= 'A' && str[i] <= 'F')
  110                         digit |= (str[i] - 'A') + 10;
  111                 else {
  112                         /* Bogus digit!! */
  113                         return (0);
  114                 }
  115 
  116                 /* Compensate for ordering of digits. */
  117                 if (i & 1) {
  118                         enet[i >> 1] = digit;
  119                         digit = 0;
  120                 } else
  121                         digit <<= 4;
  122         }
  123 
  124         return (1);
  125 }
  126 
  127 static int
  128 sn_pccard_attach(device_t dev)
  129 {
  130         struct sn_softc *sc = device_get_softc(dev);
  131         int i;
  132         u_char sum;
  133         u_char ether_addr[ETHER_ADDR_LEN];
  134         const char *cisstr;
  135 
  136         sc->pccard_enaddr = 0;
  137         pccard_get_ether(dev, ether_addr);
  138         for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
  139                 sum |= ether_addr[i];
  140         if (sum == 0) {
  141                 pccard_get_cis3_str(dev, &cisstr);
  142                 if (strlen(cisstr) == ETHER_ADDR_LEN * 2)
  143                     sum = sn_pccard_ascii_enaddr(cisstr, ether_addr);
  144         }
  145         if (sum == 0) {
  146                 pccard_get_cis4_str(dev, &cisstr);
  147                 if (strlen(cisstr) == ETHER_ADDR_LEN * 2)
  148                     sum = sn_pccard_ascii_enaddr(cisstr, ether_addr);
  149         }
  150         if (sum) {
  151                 sc->pccard_enaddr = 1;
  152                 bcopy(ether_addr, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
  153         }
  154         return (sn_attach(dev));
  155 }
  156 
  157 static device_method_t sn_pccard_methods[] = {
  158         /* Device interface */
  159         DEVMETHOD(device_probe,         pccard_compat_probe),
  160         DEVMETHOD(device_attach,        pccard_compat_attach),
  161         DEVMETHOD(device_detach,        sn_detach),
  162 
  163         /* Card interface */
  164         DEVMETHOD(card_compat_match,    sn_pccard_match),
  165         DEVMETHOD(card_compat_probe,    sn_pccard_probe),
  166         DEVMETHOD(card_compat_attach,   sn_pccard_attach),
  167 
  168         { 0, 0 }
  169 };
  170 
  171 static driver_t sn_pccard_driver = {
  172         "sn",
  173         sn_pccard_methods,
  174         sizeof(struct sn_softc),
  175 };
  176 
  177 extern devclass_t sn_devclass;
  178 
  179 DRIVER_MODULE(sn, pccard, sn_pccard_driver, sn_devclass, 0, 0);
  180 MODULE_DEPEND(sn, ether, 1, 1, 1);

Cache object: 4d82de09fc5227bdbdc058b7ffd672d2


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