if_ep_pccard.c

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    1 /*-
    2  * Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca>
    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  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *      This product includes software developed by Herb Peyerl.
   16  * 4. The name of Herb Peyerl may not be used to endorse or promote products
   17  *    derived from this software without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   29  */
   30 
   31 /*
   32  * Pccard support for 3C589 by:
   33  *              HAMADA Naoki
   34  *              nao@tom-yam.or.jp
   35  */
   36 
   37 #include <sys/cdefs.h>
   38 __FBSDID("$FreeBSD$");
   39 
   40 #include <sys/param.h>
   41 #include <sys/systm.h>
   42 #include <sys/kernel.h>
   43 #include <sys/socket.h>
   44 #include <sys/module.h>
   45 #include <sys/bus.h>
   46 
   47 #include <machine/bus.h>
   48 #include <machine/resource.h>
   49 
   50 #include <net/ethernet.h>
   51 #include <net/if.h>
   52 #include <net/if_arp.h>
   53 #include <net/if_media.h>
   54 
   55 #include <dev/ep/if_epreg.h>
   56 #include <dev/ep/if_epvar.h>
   57 
   58 #include <dev/pccard/pccardvar.h>
   59 #include <dev/pccard/pccard_cis.h>
   60 
   61 #include "pccarddevs.h"
   62 
   63 struct ep_pccard_product
   64 {
   65         struct pccard_product prod;
   66         int chipset;
   67 };
   68 
   69 #define EP_CHIP_589     1       /* Classic 3c5x9 chipset */
   70 #define EP_CHIP_574     2       /* Roadrunner */
   71 #define EP_CHIP_C1      3       /* 3c1 */
   72 
   73 static const struct ep_pccard_product ep_pccard_products[] = {
   74         { PCMCIA_CARD(3COM, 3C1),               EP_CHIP_C1 },
   75         { PCMCIA_CARD(3COM, 3C562),             EP_CHIP_589 },
   76         { PCMCIA_CARD(3COM, 3C589),             EP_CHIP_589 },
   77         { PCMCIA_CARD(3COM, 3CXEM556),          EP_CHIP_589 },
   78         { PCMCIA_CARD(3COM, 3CXEM556INT),       EP_CHIP_589 },
   79         { PCMCIA_CARD(3COM, 3C574),             EP_CHIP_574 },
   80         { PCMCIA_CARD(3COM, 3CCFEM556BI),       EP_CHIP_574 },
   81         { { NULL } }
   82 };
   83 
   84 static const struct ep_pccard_product *
   85 ep_pccard_lookup(device_t dev)
   86 {
   87         return ((const struct ep_pccard_product *)pccard_product_lookup(dev,
   88             (const struct pccard_product *)ep_pccard_products,
   89             sizeof(ep_pccard_products[0]), NULL));
   90 }
   91 
   92 static int
   93 ep_pccard_probe(device_t dev)
   94 {
   95         const struct ep_pccard_product *pp;
   96         int             error;
   97         uint32_t        fcn = PCCARD_FUNCTION_UNSPEC;
   98 
   99         /* Make sure we're a network function */
  100         error = pccard_get_function(dev, &fcn);
  101         if (error != 0)
  102                 return (error);
  103         if (fcn != PCCARD_FUNCTION_NETWORK)
  104                 return (ENXIO);
  105 
  106         /* Check to see if we know about this card */
  107         if ((pp = ep_pccard_lookup(dev)) == NULL)
  108                 return EIO;
  109         if (pp->prod.pp_name != NULL)
  110                 device_set_desc(dev, pp->prod.pp_name);
  111 
  112         return 0;
  113 }
  114 
  115 static int
  116 ep_pccard_mac(const struct pccard_tuple *tuple, void *argp)
  117 {
  118         uint8_t *enaddr = argp;
  119         int i;
  120 
  121         /* Code 0x88 is 3com's special cis node contianing the MAC */
  122         if (tuple->code != 0x88)
  123                 return (0);
  124 
  125         /* Make sure this is a sane node */
  126         if (tuple->length < ETHER_ADDR_LEN)
  127                 return (0);
  128 
  129         /* Copy the MAC ADDR and return success */
  130         for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
  131                 enaddr[i] = pccard_tuple_read_1(tuple, i + 1);
  132                 enaddr[i + 1] = pccard_tuple_read_1(tuple, i);
  133         }
  134         return (1);
  135 }
  136 
  137 static int
  138 ep_pccard_attach(device_t dev)
  139 {
  140         struct ep_softc *sc = device_get_softc(dev);
  141         uint16_t result;
  142         int error = 0;
  143         const struct ep_pccard_product *pp;
  144 
  145         if ((pp = ep_pccard_lookup(dev)) == NULL)
  146                 panic("ep_pccard_attach: can't find product in attach.");
  147 
  148         if (pp->chipset == EP_CHIP_574) {
  149                 sc->epb.mii_trans = 1;
  150                 sc->epb.cmd_off = 2;
  151         } else {
  152                 sc->epb.mii_trans = 0;
  153                 sc->epb.cmd_off = 0;
  154         }
  155         if ((error = ep_alloc(dev))) {
  156                 device_printf(dev, "ep_alloc() failed! (%d)\n", error);
  157                 goto bad;
  158         }
  159 
  160         if (pp->chipset == EP_CHIP_C1)
  161                 sc->stat |= F_HAS_TX_PLL;
  162         
  163         /* ROM size = 0, ROM base = 0 */
  164         /* For now, ignore AUTO SELECT feature of 3C589B and later. */
  165         error = ep_get_e(sc, EEPROM_ADDR_CFG, &result);
  166         CSR_WRITE_2(sc, EP_W0_ADDRESS_CFG, result & 0xc000);
  167 
  168         /* 
  169          * Fake IRQ must be 3 for 3C589 and 3C589B.  3C589D and newer
  170          * ignore this value.  3C589C is unknown, as are the other
  171          * cards supported by this driver, but it appears to never hurt
  172          * and always helps.
  173          */
  174         SET_IRQ(sc, 3);
  175         CSR_WRITE_2(sc, EP_W0_PRODUCT_ID, sc->epb.prod_id);
  176 
  177         if (sc->epb.mii_trans) {
  178                 /*
  179                  * turn on the MII transciever
  180                  */
  181                 GO_WINDOW(sc, 3);
  182                 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
  183                 DELAY(1000);
  184                 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0xc040);
  185                 CSR_WRITE_2(sc, EP_COMMAND, RX_RESET);
  186                 CSR_WRITE_2(sc, EP_COMMAND, TX_RESET);
  187                 EP_BUSY_WAIT(sc);
  188                 DELAY(1000);
  189                 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
  190         } else
  191                 ep_get_media(sc);
  192 
  193         /*
  194          * The 3C562 (a-c revisions) stores the MAC in the CIS in a
  195          * way that's unique to 3com.  If we have one of these cards,
  196          * scan the CIS for that MAC address, and use it if we find
  197          * it.  The NetBSD driver says that the ROADRUNNER chips also
  198          * do this, which may be true, but none of the cards that I
  199          * have include this TUPLE.  Always prefer the MAC addr in the
  200          * CIS tuple to the one returned by the card, as it appears that
  201          * only those cards that need it have this special tuple.
  202          */
  203         if (pccard_cis_scan(dev, ep_pccard_mac, sc->eaddr))
  204                 sc->stat |= F_ENADDR_SKIP;
  205         if ((error = ep_attach(sc))) {
  206                 device_printf(dev, "ep_attach() failed! (%d)\n", error);
  207                 goto bad;
  208         }
  209         if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
  210             NULL, ep_intr, sc, &sc->ep_intrhand))) {
  211                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
  212                 goto bad;
  213         }
  214         return (0);
  215 bad:
  216         ep_free(dev);
  217         return (error);
  218 }
  219 
  220 static device_method_t ep_pccard_methods[] = {
  221         /* Device interface */
  222         DEVMETHOD(device_probe, ep_pccard_probe),
  223         DEVMETHOD(device_attach, ep_pccard_attach),
  224         DEVMETHOD(device_detach, ep_detach),
  225 
  226         {0, 0}
  227 };
  228 
  229 static driver_t ep_pccard_driver = {
  230         "ep",
  231         ep_pccard_methods,
  232         sizeof(struct ep_softc),
  233 };
  234 
  235 extern devclass_t ep_devclass;
  236 
  237 DRIVER_MODULE(ep, pccard, ep_pccard_driver, ep_devclass, 0, 0);

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FreeBSD/Linux Kernel Cross Reference sys/dev/ep/if_ep_pccard.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/ep/if_ep_pccard.c