The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/netif/fe/if_fe_pccard.c

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    1 /*
    2  * All Rights Reserved, Copyright (C) Fujitsu Limited 1995
    3  *
    4  * This software may be used, modified, copied, distributed, and sold, in
    5  * both source and binary form provided that the above copyright, these
    6  * terms and the following disclaimer are retained.  The name of the author
    7  * and/or the contributor may not be used to endorse or promote products
    8  * derived from this software without specific prior written permission.
    9  *
   10  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND THE CONTRIBUTOR ``AS IS'' AND
   11  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   12  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   13  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR THE CONTRIBUTOR BE LIABLE
   14  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   15  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   16  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION.
   17  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   18  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   19  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   20  * SUCH DAMAGE.
   21  *
   22  * $FreeBSD: src/sys/dev/fe/if_fe_pccard.c,v 1.2.2.1 2000/09/22 10:01:47 nyan Exp $
   23  */
   24 
   25 #include "opt_fe.h"
   26 #include "opt_inet.h"
   27 #include "opt_ipx.h"
   28 
   29 #include <sys/param.h>
   30 #include <sys/kernel.h>
   31 #include <sys/socket.h>
   32 #include <sys/module.h>
   33 #include <sys/bus.h>
   34 #include <machine/clock.h>
   35 
   36 #include <net/ethernet.h>
   37 #include <net/if.h>
   38 #include <net/if_mib.h>
   39 #include <net/if_media.h>
   40 
   41 #include <netinet/in.h>
   42 #include <netinet/if_ether.h>
   43 
   44 #include "mb86960.h"
   45 #include "if_fereg.h"
   46 #include "if_fevar.h"
   47 
   48 #include <bus/pccard/pccardvar.h>
   49 
   50 #include "card_if.h"
   51 #include "pccarddevs.h"
   52 
   53 /*
   54  *      PC-Card (PCMCIA) specific code.
   55  */
   56 static int fe_pccard_probe(device_t);
   57 static int fe_pccard_attach(device_t);
   58 static int fe_pccard_detach(device_t);
   59 static int fe_pccard_match(device_t);
   60 
   61 static const struct fe_pccard_product {
   62         struct pccard_product mpp_product;
   63         u_int32_t mpp_ioalign;                  /* required alignment */
   64         int mpp_enet_maddr;
   65 } fe_pccard_products[] = {
   66         { PCMCIA_CARD(TDK, LAK_CD021BX, 0), 0, -1 }, 
   67         { PCMCIA_CARD(TDK, LAK_CF010, 0), 0, -1 }, 
   68 #if 0 /* XXX 86960-based? */
   69         { PCMCIA_CARD(TDK, LAK_DFL9610, 1), 0, -1 }, 
   70 #endif
   71         { PCMCIA_CARD(CONTEC, CNETPC, 0), 0, -1 },
   72         { PCMCIA_CARD(FUJITSU, LA501, 0), 0x20, -1 },
   73         { PCMCIA_CARD(FUJITSU, LA10S, 0), 0, -1 },
   74         { PCMCIA_CARD(RATOC, REX_R280, 0), 0, 0x1fc },
   75         { { NULL } }
   76 };
   77 
   78 static int
   79 fe_pccard_match(device_t dev)
   80 {
   81         const struct pccard_product *pp;
   82 
   83         if ((pp = pccard_product_lookup(dev,
   84             (const struct pccard_product *)fe_pccard_products,
   85             sizeof(fe_pccard_products[0]), NULL)) != NULL) {
   86                 if (pp->pp_name != NULL)
   87                         device_set_desc(dev, pp->pp_name);
   88                 return 0;
   89         }
   90         return ENXIO;
   91 }
   92 
   93 static device_method_t fe_pccard_methods[] = {
   94         /* Device interface */
   95         DEVMETHOD(device_probe,         pccard_compat_probe),
   96         DEVMETHOD(device_attach,        pccard_compat_attach),
   97         DEVMETHOD(device_detach,        fe_pccard_detach),
   98 
   99         /* Card interface */
  100         DEVMETHOD(card_compat_match,    fe_pccard_match),
  101         DEVMETHOD(card_compat_probe,    fe_pccard_probe),
  102         DEVMETHOD(card_compat_attach,   fe_pccard_attach),
  103 
  104         DEVMETHOD_END
  105 };
  106 
  107 static driver_t fe_pccard_driver = {
  108         "fe",
  109         fe_pccard_methods,
  110         sizeof (struct fe_softc)
  111 };
  112 
  113 DRIVER_MODULE(if_fe, pccard, fe_pccard_driver, fe_devclass, NULL, NULL);
  114 
  115 
  116 static int fe_probe_mbh(device_t);
  117 static int fe_probe_tdk(device_t);
  118 
  119 /*
  120  *      Initialize the device - called from Slot manager.
  121  */
  122 static int
  123 fe_pccard_probe(device_t dev)
  124 {
  125         struct fe_softc *sc;
  126         int i, error;
  127         uint8_t sum;
  128         const uint8_t *ether_addr;
  129 
  130         /* Prepare for the device probe process.  */
  131         sc = device_get_softc(dev);
  132         sc->sc_unit = device_get_unit(dev);
  133 
  134         ether_addr = pccard_get_ether(dev);
  135         for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
  136                 sum |= ether_addr[i];
  137         if (sum)
  138                 bcopy(ether_addr, sc->sc_enaddr, ETHER_ADDR_LEN);
  139 
  140         /* Probe for supported cards.  */
  141         if ((error = fe_probe_mbh(dev)) == 0)
  142                 goto end;
  143         fe_release_resource(dev);
  144 
  145         if ((error = fe_probe_tdk(dev)) == 0)
  146                 goto end;
  147         fe_release_resource(dev);
  148 
  149 end:
  150         if (error == 0)
  151                 error = fe_alloc_irq(dev, 0);
  152 
  153         fe_release_resource(dev);
  154         return (error);
  155 }
  156 
  157 static int
  158 fe_pccard_attach(device_t dev)
  159 {
  160         struct fe_softc *sc = device_get_softc(dev);
  161 
  162         if (sc->port_used)
  163                 fe_alloc_port(dev, sc->port_used);
  164         fe_alloc_irq(dev, 0);
  165 
  166         return fe_attach(dev);
  167 }
  168 
  169 /*
  170  *      feunload - unload the driver and clear the table.
  171  *      XXX TODO:
  172  *      This is usually called when the card is ejected, but
  173  *      can be caused by a modunload of a controller driver.
  174  *      The idea is to reset the driver's view of the device
  175  *      and ensure that any driver entry points such as
  176  *      read and write do not hang.
  177  */
  178 static int
  179 fe_pccard_detach(device_t dev)
  180 {
  181         struct fe_softc *sc = device_get_softc(dev);
  182         struct ifnet *ifp = &sc->arpcom.ac_if;
  183 
  184         lwkt_serialize_enter(ifp->if_serializer);
  185         fe_stop(sc);
  186         bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
  187         lwkt_serialize_exit(ifp->if_serializer);
  188 
  189         ether_ifdetach(ifp);
  190         fe_release_resource(dev);
  191 
  192         return 0;
  193 }
  194 
  195 
  196 /*
  197  * Probe and initialization for Fujitsu MBH10302 PCMCIA Ethernet interface.
  198  * Note that this is for 10302 only; MBH10304 is handled by fe_probe_tdk().
  199  */
  200 static void
  201 fe_init_mbh(struct fe_softc *sc)
  202 {
  203         /* Minimal initialization of 86960.  */
  204         DELAY(200);
  205         fe_outb(sc, FE_DLCR6, sc->proto_dlcr6 | FE_D6_DLC_DISABLE);
  206         DELAY(200);
  207 
  208         /* Disable all interrupts.  */
  209         fe_outb(sc, FE_DLCR2, 0);
  210         fe_outb(sc, FE_DLCR3, 0);
  211 
  212         /* Enable master interrupt flag.  */
  213         fe_outb(sc, FE_MBH0, FE_MBH0_MAGIC | FE_MBH0_INTR_ENABLE);
  214 }
  215 
  216 static int
  217 fe_probe_mbh(device_t dev)
  218 {
  219         struct fe_softc *sc = device_get_softc(dev);
  220 
  221         static struct fe_simple_probe_struct probe_table [] = {
  222                 { FE_DLCR2, 0x58, 0x00 },
  223                 { FE_DLCR4, 0x08, 0x00 },
  224                 { FE_DLCR6, 0xFF, 0xB6 },
  225                 { 0 }
  226         };
  227 
  228         /* MBH10302 occupies 32 I/O addresses. */
  229         if (fe_alloc_port(dev, 32))
  230                 return ENXIO;
  231 
  232         /* Ethernet MAC address should *NOT* have been given by pccardd,
  233            if this is a true MBH10302; i.e., Ethernet address must be
  234            "all-zero" upon entry.  */
  235         if (sc->sc_enaddr[0] || sc->sc_enaddr[1] || sc->sc_enaddr[2] ||
  236             sc->sc_enaddr[3] || sc->sc_enaddr[4] || sc->sc_enaddr[5])
  237                 return ENXIO;
  238 
  239         /* Fill the softc struct with default values.  */
  240         fe_softc_defaults(sc);
  241 
  242         /*
  243          * See if MBH10302 is on its address.
  244          * I'm not sure the following probe code works.  FIXME.
  245          */
  246         if (!fe_simple_probe(sc, probe_table))
  247                 return ENXIO;
  248 
  249         /* Get our station address from EEPROM.  */
  250         fe_inblk(sc, FE_MBH10, sc->sc_enaddr, ETHER_ADDR_LEN);
  251 
  252         /* Make sure we got a valid station address.  */
  253         if (!valid_Ether_p(sc->sc_enaddr, 0))
  254                 return ENXIO;
  255 
  256         /* Determine the card type.  */
  257         sc->type = FE_TYPE_MBH;
  258         sc->typestr = "MBH10302 (PCMCIA)";
  259 
  260         /* We seems to need our own IDENT bits...  FIXME.  */
  261         sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_IDENT_NICE;
  262 
  263         /* Setup hooks.  We need a special initialization procedure.  */
  264         sc->init = fe_init_mbh;
  265 
  266         return 0;
  267 }
  268 
  269 /*
  270  * Probe and initialization for TDK/CONTEC PCMCIA Ethernet interface.
  271  * by MASUI Kenji <masui@cs.titech.ac.jp>
  272  *
  273  * (Contec uses TDK Ethenet chip -- hosokawa)
  274  *
  275  * This version of fe_probe_tdk has been rewrote to handle
  276  * *generic* PC card implementation of Fujitsu MB8696x family.  The
  277  * name _tdk is just for a historical reason. :-)
  278  */
  279 static int
  280 fe_probe_tdk (device_t dev)
  281 {
  282         struct fe_softc *sc = device_get_softc(dev);
  283 
  284         static struct fe_simple_probe_struct probe_table [] = {
  285                 { FE_DLCR2, 0x50, 0x00 },
  286                 { FE_DLCR4, 0x08, 0x00 },
  287             /*  { FE_DLCR5, 0x80, 0x00 },       Does not work well.  */
  288                 { 0 }
  289         };
  290 
  291         /* C-NET(PC)C occupies 16 I/O addresses. */
  292         if (fe_alloc_port(dev, 16))
  293                 return ENXIO;
  294 
  295         /* Fill the softc struct with default values.  */
  296         fe_softc_defaults(sc);
  297 
  298         /*
  299          * See if C-NET(PC)C is on its address.
  300          */
  301         if (!fe_simple_probe(sc, probe_table))
  302                 return ENXIO;
  303 
  304         /* Determine the card type.  */
  305         sc->type = FE_TYPE_TDK;
  306         sc->typestr = "Generic MB8696x/78Q837x Ethernet (PCMCIA)";
  307 
  308         /* Make sure we got a valid station address.  */
  309         if (!valid_Ether_p(sc->sc_enaddr, 0))
  310                 return ENXIO;
  311 
  312         return 0;
  313 }

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