if_ep_pccard.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-4-Clause
    3  *
    4  * Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca>
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. All advertising materials mentioning features or use of this software
   16  *    must display the following acknowledgement:
   17  *      This product includes software developed by Herb Peyerl.
   18  * 4. The name of Herb Peyerl may not be used to endorse or promote products
   19  *    derived from this software without specific prior written permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 /*
   34  * Pccard support for 3C589 by:
   35  *              HAMADA Naoki
   36  *              nao@tom-yam.or.jp
   37  */
   38 
   39 #include <sys/cdefs.h>
   40 __FBSDID("$FreeBSD: releng/12.0/sys/dev/ep/if_ep_pccard.c 326255 2017-11-27 14:52:40Z pfg $");
   41 
   42 #include <sys/param.h>
   43 #include <sys/systm.h>
   44 #include <sys/kernel.h>
   45 #include <sys/socket.h>
   46 #include <sys/module.h>
   47 #include <sys/bus.h>
   48 
   49 #include <machine/bus.h>
   50 #include <machine/resource.h>
   51 
   52 #include <net/ethernet.h>
   53 #include <net/if.h>
   54 #include <net/if_arp.h>
   55 #include <net/if_media.h>
   56 
   57 #include <dev/ep/if_epreg.h>
   58 #include <dev/ep/if_epvar.h>
   59 
   60 #include <dev/pccard/pccardvar.h>
   61 #include <dev/pccard/pccard_cis.h>
   62 
   63 #include "pccarddevs.h"
   64 
   65 struct ep_pccard_product
   66 {
   67         struct pccard_product prod;
   68         int chipset;
   69 };
   70 
   71 #define EP_CHIP_589     1       /* Classic 3c5x9 chipset */
   72 #define EP_CHIP_574     2       /* Roadrunner */
   73 #define EP_CHIP_C1      3       /* 3c1 */
   74 
   75 static const struct ep_pccard_product ep_pccard_products[] = {
   76         { PCMCIA_CARD(3COM, 3C1),               EP_CHIP_C1 },
   77         { PCMCIA_CARD(3COM, 3C562),             EP_CHIP_589 },
   78         { PCMCIA_CARD(3COM, 3C589),             EP_CHIP_589 },
   79         { PCMCIA_CARD(3COM, 3CXEM556),          EP_CHIP_589 },
   80         { PCMCIA_CARD(3COM, 3CXEM556INT),       EP_CHIP_589 },
   81         { PCMCIA_CARD(3COM, 3C574),             EP_CHIP_574 },
   82         { PCMCIA_CARD(3COM, 3CCFEM556BI),       EP_CHIP_574 },
   83         { { NULL } }
   84 };
   85 
   86 static const struct ep_pccard_product *
   87 ep_pccard_lookup(device_t dev)
   88 {
   89         return ((const struct ep_pccard_product *)pccard_product_lookup(dev,
   90             (const struct pccard_product *)ep_pccard_products,
   91             sizeof(ep_pccard_products[0]), NULL));
   92 }
   93 
   94 static int
   95 ep_pccard_probe(device_t dev)
   96 {
   97         const struct ep_pccard_product *pp;
   98         int             error;
   99         uint32_t        fcn = PCCARD_FUNCTION_UNSPEC;
  100 
  101         /* Make sure we're a network function */
  102         error = pccard_get_function(dev, &fcn);
  103         if (error != 0)
  104                 return (error);
  105         if (fcn != PCCARD_FUNCTION_NETWORK)
  106                 return (ENXIO);
  107 
  108         /* Check to see if we know about this card */
  109         if ((pp = ep_pccard_lookup(dev)) == NULL)
  110                 return EIO;
  111         if (pp->prod.pp_name != NULL)
  112                 device_set_desc(dev, pp->prod.pp_name);
  113 
  114         return 0;
  115 }
  116 
  117 static int
  118 ep_pccard_mac(const struct pccard_tuple *tuple, void *argp)
  119 {
  120         uint8_t *enaddr = argp;
  121         int i;
  122 
  123         /* Code 0x88 is 3com's special cis node contianing the MAC */
  124         if (tuple->code != 0x88)
  125                 return (0);
  126 
  127         /* Make sure this is a sane node */
  128         if (tuple->length < ETHER_ADDR_LEN)
  129                 return (0);
  130 
  131         /* Copy the MAC ADDR and return success */
  132         for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
  133                 enaddr[i] = pccard_tuple_read_1(tuple, i + 1);
  134                 enaddr[i + 1] = pccard_tuple_read_1(tuple, i);
  135         }
  136         return (1);
  137 }
  138 
  139 static int
  140 ep_pccard_attach(device_t dev)
  141 {
  142         struct ep_softc *sc = device_get_softc(dev);
  143         uint16_t result;
  144         int error = 0;
  145         const struct ep_pccard_product *pp;
  146 
  147         if ((pp = ep_pccard_lookup(dev)) == NULL)
  148                 panic("ep_pccard_attach: can't find product in attach.");
  149 
  150         if (pp->chipset == EP_CHIP_574) {
  151                 sc->epb.mii_trans = 1;
  152                 sc->epb.cmd_off = 2;
  153         } else {
  154                 sc->epb.mii_trans = 0;
  155                 sc->epb.cmd_off = 0;
  156         }
  157         if ((error = ep_alloc(dev))) {
  158                 device_printf(dev, "ep_alloc() failed! (%d)\n", error);
  159                 goto bad;
  160         }
  161 
  162         if (pp->chipset == EP_CHIP_C1)
  163                 sc->stat |= F_HAS_TX_PLL;
  164         
  165         /* ROM size = 0, ROM base = 0 */
  166         /* For now, ignore AUTO SELECT feature of 3C589B and later. */
  167         error = ep_get_e(sc, EEPROM_ADDR_CFG, &result);
  168         CSR_WRITE_2(sc, EP_W0_ADDRESS_CFG, result & 0xc000);
  169 
  170         /* 
  171          * Fake IRQ must be 3 for 3C589 and 3C589B.  3C589D and newer
  172          * ignore this value.  3C589C is unknown, as are the other
  173          * cards supported by this driver, but it appears to never hurt
  174          * and always helps.
  175          */
  176         SET_IRQ(sc, 3);
  177         CSR_WRITE_2(sc, EP_W0_PRODUCT_ID, sc->epb.prod_id);
  178 
  179         if (sc->epb.mii_trans) {
  180                 /*
  181                  * turn on the MII transciever
  182                  */
  183                 GO_WINDOW(sc, 3);
  184                 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
  185                 DELAY(1000);
  186                 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0xc040);
  187                 CSR_WRITE_2(sc, EP_COMMAND, RX_RESET);
  188                 CSR_WRITE_2(sc, EP_COMMAND, TX_RESET);
  189                 EP_BUSY_WAIT(sc);
  190                 DELAY(1000);
  191                 CSR_WRITE_2(sc, EP_W3_OPTIONS, 0x8040);
  192         } else
  193                 ep_get_media(sc);
  194 
  195         /*
  196          * The 3C562 (a-c revisions) stores the MAC in the CIS in a
  197          * way that's unique to 3com.  If we have one of these cards,
  198          * scan the CIS for that MAC address, and use it if we find
  199          * it.  The NetBSD driver says that the ROADRUNNER chips also
  200          * do this, which may be true, but none of the cards that I
  201          * have include this TUPLE.  Always prefer the MAC addr in the
  202          * CIS tuple to the one returned by the card, as it appears that
  203          * only those cards that need it have this special tuple.
  204          */
  205         if (pccard_cis_scan(dev, ep_pccard_mac, sc->eaddr))
  206                 sc->stat |= F_ENADDR_SKIP;
  207         if ((error = ep_attach(sc))) {
  208                 device_printf(dev, "ep_attach() failed! (%d)\n", error);
  209                 goto bad;
  210         }
  211         if ((error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
  212             NULL, ep_intr, sc, &sc->ep_intrhand))) {
  213                 device_printf(dev, "bus_setup_intr() failed! (%d)\n", error);
  214                 goto bad;
  215         }
  216         return (0);
  217 bad:
  218         ep_free(dev);
  219         return (error);
  220 }
  221 
  222 static device_method_t ep_pccard_methods[] = {
  223         /* Device interface */
  224         DEVMETHOD(device_probe, ep_pccard_probe),
  225         DEVMETHOD(device_attach, ep_pccard_attach),
  226         DEVMETHOD(device_detach, ep_detach),
  227 
  228         DEVMETHOD_END
  229 };
  230 
  231 static driver_t ep_pccard_driver = {
  232         "ep",
  233         ep_pccard_methods,
  234         sizeof(struct ep_softc),
  235 };
  236 
  237 extern devclass_t ep_devclass;
  238 
  239 DRIVER_MODULE(ep, pccard, ep_pccard_driver, ep_devclass, 0, 0);
  240 PCCARD_PNP_INFO(ep_pccard_products);

Cache object: 03d772464076737b8945ac5b08be806c

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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