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/xe/if_xe_pccard.c

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    1 /*-
    2  * Copyright (c) 2002 Takeshi Shibagaki
    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 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: releng/11.0/sys/dev/xe/if_xe_pccard.c 297000 2016-03-18 01:28:41Z jhibbits $");
   29 
   30 /* xe pccard interface driver */
   31 
   32 #include <sys/param.h>
   33 #include <sys/bus.h>
   34 #include <sys/kernel.h>
   35 #include <sys/lock.h>
   36 #include <sys/module.h>
   37 #include <sys/mutex.h>
   38 #include <sys/socket.h>
   39 #include <sys/systm.h>
   40 
   41 #include <machine/bus.h>
   42 #include <machine/resource.h>
   43 #include <sys/rman.h>
   44  
   45 #include <net/ethernet.h>
   46 #include <net/if.h> 
   47 #include <net/if_arp.h>
   48 #include <net/if_media.h>
   49 #include <net/if_mib.h>
   50 
   51 #include <dev/xe/if_xereg.h>
   52 #include <dev/xe/if_xevar.h>
   53 
   54 #include <dev/pccard/pccardvar.h>
   55 #include <dev/pccard/pccard_cis.h>
   56 
   57 #include "card_if.h"
   58 #include "pccarddevs.h"
   59 
   60 /*
   61  * Debug logging levels - set with hw.xe.debug sysctl
   62  * 0 = None
   63  * 1 = More hardware details, probe/attach progress
   64  * 2 = Most function calls, ioctls and media selection progress
   65  * 3 = Everything - interrupts, packets in/out and multicast address setup
   66  */
   67 #define XE_DEBUG
   68 #ifdef XE_DEBUG
   69 
   70 extern int xe_debug;
   71 
   72 #define DEVPRINTF(level, arg)   if (xe_debug >= (level)) device_printf arg
   73 #define DPRINTF(level, arg)     if (xe_debug >= (level)) printf arg
   74 #else
   75 #define DEVPRINTF(level, arg)
   76 #define DPRINTF(level, arg)
   77 #endif
   78 
   79 
   80 #define XE_CARD_TYPE_FLAGS_NO           0x0
   81 #define XE_CARD_TYPE_FLAGS_CE2          0x1
   82 #define XE_CARD_TYPE_FLAGS_MOHAWK       0x2
   83 #define XE_CARD_TYPE_FLAGS_DINGO        0x4
   84 #define XE_PROD_ETHER_MASK              0x0100
   85 #define XE_PROD_MODEM_MASK              0x1000
   86 
   87 #define XE_BOGUS_MAC_OFFSET             0x90
   88 
   89 /* MAC vendor prefix used by most Xircom cards is 00:80:c7 */
   90 #define XE_MAC_ADDR_0                   0x00
   91 #define XE_MAC_ADDR_1                   0x80
   92 #define XE_MAC_ADDR_2                   0xc7
   93 
   94 /* Some (all?) REM56 cards have vendor prefix 00:10:a4 */
   95 #define XE_REM56_MAC_ADDR_0             0x00
   96 #define XE_REM56_MAC_ADDR_1             0x10
   97 #define XE_REM56_MAC_ADDR_2             0xa4
   98 
   99 struct xe_pccard_product {
  100         struct pccard_product product;
  101         uint16_t        prodext;
  102         uint16_t        flags;
  103 };
  104 
  105 static const struct xe_pccard_product xe_pccard_products[] = {
  106         { PCMCIA_CARD_D(COMPAQ, CPQ550),      0x43, XE_CARD_TYPE_FLAGS_CE2 },
  107         { PCMCIA_CARD_D(COMPAQ2, CPQ_10_100), 0x43, XE_CARD_TYPE_FLAGS_MOHAWK },
  108         { PCMCIA_CARD_D(INTEL, EEPRO100),     0x43, XE_CARD_TYPE_FLAGS_MOHAWK },
  109         { PCMCIA_CARD_D(INTEL, PRO100LAN56),  0x46, XE_CARD_TYPE_FLAGS_DINGO },
  110         { PCMCIA_CARD_D(RACORE, ACCTON_EN2226),0x43, XE_CARD_TYPE_FLAGS_MOHAWK },
  111         { PCMCIA_CARD_D(XIRCOM, CE),          0x41, XE_CARD_TYPE_FLAGS_NO },
  112         { PCMCIA_CARD_D(XIRCOM, CE2),         0x41, XE_CARD_TYPE_FLAGS_CE2 },
  113         { PCMCIA_CARD_D(XIRCOM, CE2),         0x42, XE_CARD_TYPE_FLAGS_CE2 },
  114         { PCMCIA_CARD_D(XIRCOM, CE2_2),       0x41, XE_CARD_TYPE_FLAGS_CE2 },
  115         { PCMCIA_CARD_D(XIRCOM, CE2_2),       0x42, XE_CARD_TYPE_FLAGS_CE2 },
  116         { PCMCIA_CARD_D(XIRCOM, CE3),         0x43, XE_CARD_TYPE_FLAGS_MOHAWK },
  117         { PCMCIA_CARD_D(XIRCOM, CEM),         0x41, XE_CARD_TYPE_FLAGS_NO },
  118         { PCMCIA_CARD_D(XIRCOM, CEM2),        0x42, XE_CARD_TYPE_FLAGS_CE2 },
  119         { PCMCIA_CARD_D(XIRCOM, CEM28),       0x43, XE_CARD_TYPE_FLAGS_CE2 },
  120         { PCMCIA_CARD_D(XIRCOM, CEM33),       0x44, XE_CARD_TYPE_FLAGS_CE2 },
  121         { PCMCIA_CARD_D(XIRCOM, CEM33_2),     0x44, XE_CARD_TYPE_FLAGS_CE2 },
  122         { PCMCIA_CARD_D(XIRCOM, CEM56),       0x45, XE_CARD_TYPE_FLAGS_DINGO },
  123         { PCMCIA_CARD_D(XIRCOM, CEM56_2),     0x46, XE_CARD_TYPE_FLAGS_DINGO },
  124         { PCMCIA_CARD_D(XIRCOM, REM56),       0x46, XE_CARD_TYPE_FLAGS_DINGO },
  125         { PCMCIA_CARD_D(XIRCOM, REM10),       0x47, XE_CARD_TYPE_FLAGS_DINGO },
  126         { PCMCIA_CARD_D(XIRCOM, XEM5600),     0x56, XE_CARD_TYPE_FLAGS_DINGO },
  127         { { NULL }, 0, 0 }      
  128 };
  129 
  130 /*
  131  * Fixing for CEM2, CEM3 and CEM56/REM56 cards.  These need some magic to
  132  * enable the Ethernet function, which isn't mentioned anywhere in the CIS.
  133  * Despite the register names, most of this isn't Dingo-specific.
  134  */
  135 static int
  136 xe_cemfix(device_t dev)
  137 {
  138         struct xe_softc *sc = device_get_softc(dev);
  139         int ioport;
  140 
  141         DEVPRINTF(2, (dev, "cemfix\n"));
  142 
  143         DEVPRINTF(1, (dev, "CEM I/O port 0x%0jx, size 0x%0jx\n",
  144                 bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid),
  145                 bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid)));
  146 
  147         pccard_attr_write_1(dev, DINGO_ECOR, DINGO_ECOR_IRQ_LEVEL |
  148             DINGO_ECOR_INT_ENABLE | DINGO_ECOR_IOB_ENABLE |
  149             DINGO_ECOR_ETH_ENABLE);
  150         ioport = bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid);
  151         pccard_attr_write_1(dev, DINGO_EBAR0, ioport & 0xff);
  152         pccard_attr_write_1(dev, DINGO_EBAR1, (ioport >> 8) & 0xff);
  153 
  154         if (sc->dingo) {
  155                 pccard_attr_write_1(dev, DINGO_DCOR0, DINGO_DCOR0_SF_INT);
  156                 pccard_attr_write_1(dev, DINGO_DCOR1, DINGO_DCOR1_INT_LEVEL |
  157                     DINGO_DCOR1_EEDIO);
  158                 pccard_attr_write_1(dev, DINGO_DCOR2, 0x00);
  159                 pccard_attr_write_1(dev, DINGO_DCOR3, 0x00);
  160                 pccard_attr_write_1(dev, DINGO_DCOR4, 0x00);
  161         }
  162         /* success! */
  163         return (0);
  164 }
  165 
  166 static int
  167 xe_pccard_product_match(device_t dev, const struct pccard_product* ent,
  168     int vpfmatch)
  169 {
  170         const struct xe_pccard_product* xpp;
  171         uint16_t prodext;
  172 
  173         if (vpfmatch == 0)
  174                 return (0);
  175 
  176         xpp = (const struct xe_pccard_product*)ent;
  177         pccard_get_prodext(dev, &prodext);
  178         if (xpp->prodext != prodext)
  179                 vpfmatch = 0;
  180         else
  181                 vpfmatch++;
  182         return (vpfmatch);
  183 }
  184 
  185 static const struct xe_pccard_product *
  186 xe_pccard_get_product(device_t dev)
  187 {
  188         return ((const struct xe_pccard_product *)pccard_product_lookup(dev,
  189             (const struct pccard_product *)xe_pccard_products,
  190             sizeof(xe_pccard_products[0]), xe_pccard_product_match));
  191 }
  192 
  193 /*
  194  * Fixing for CE2-class cards with bogus CIS entry for MAC address.
  195  */
  196 static int
  197 xe_pccard_mac(const struct pccard_tuple *tuple, void *argp)
  198 {
  199         uint8_t *enaddr = argp, test;
  200         int i;
  201 
  202         /* Code 0x89 is Xircom special cis node contianing the MAC */
  203         if (tuple->code != 0x89)
  204                 return (0);
  205 
  206         /* Make sure this is a sane node */
  207         if (tuple->length != ETHER_ADDR_LEN + 2)
  208                 return (0);
  209         test = pccard_tuple_read_1(tuple, 0);
  210         if (test != PCCARD_TPLFE_TYPE_LAN_NID)
  211                 return (0);
  212         test = pccard_tuple_read_1(tuple, 1);
  213         if (test != ETHER_ADDR_LEN)
  214                 return (0);
  215 
  216         /* Copy the MAC ADDR and return success */
  217         for (i = 0; i < ETHER_ADDR_LEN; i++)
  218                 enaddr[i] = pccard_tuple_read_1(tuple, i + 2);
  219         return (1);
  220 }
  221 
  222 static int
  223 xe_bad_mac(uint8_t *enaddr)
  224 {
  225         int i;
  226         uint8_t sum;
  227 
  228         for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
  229                 sum |= enaddr[i];
  230         return (sum == 0);
  231 }
  232 
  233 /*
  234  * PCMCIA attach routine.
  235  * Identify the device.  Called from the bus driver when the card is
  236  * inserted or otherwise powers up.
  237  */
  238 static int
  239 xe_pccard_attach(device_t dev)
  240 {
  241         struct xe_softc *scp = device_get_softc(dev);
  242         uint32_t vendor,product;
  243         uint16_t prodext;
  244         const char* vendor_str = NULL;
  245         const char* product_str = NULL;
  246         const char* cis4_str = NULL;
  247         const char *cis3_str=NULL;
  248         const struct xe_pccard_product *xpp;
  249         int err;
  250 
  251         DEVPRINTF(2, (dev, "pccard_attach\n"));
  252 
  253         pccard_get_vendor(dev, &vendor);
  254         pccard_get_product(dev, &product);
  255         pccard_get_prodext(dev, &prodext);
  256         pccard_get_vendor_str(dev, &vendor_str);
  257         pccard_get_product_str(dev, &product_str);
  258         pccard_get_cis3_str(dev, &cis3_str);
  259         pccard_get_cis4_str(dev, &cis4_str);
  260 
  261         DEVPRINTF(1, (dev, "vendor = 0x%04x\n", vendor));
  262         DEVPRINTF(1, (dev, "product = 0x%04x\n", product));
  263         DEVPRINTF(1, (dev, "prodext = 0x%02x\n", prodext));
  264         DEVPRINTF(1, (dev, "vendor_str = %s\n", vendor_str));
  265         DEVPRINTF(1, (dev, "product_str = %s\n", product_str));
  266         DEVPRINTF(1, (dev, "cis3_str = %s\n", cis3_str));
  267         DEVPRINTF(1, (dev, "cis4_str = %s\n", cis4_str));
  268 
  269         xpp = xe_pccard_get_product(dev);
  270         if (xpp == NULL)
  271                 return (ENXIO);
  272 
  273         /* Set various card ID fields in softc */
  274         scp->vendor = vendor_str;
  275         scp->card_type = product_str;
  276         if (xpp->flags & XE_CARD_TYPE_FLAGS_CE2)
  277                 scp->ce2 = 1;
  278         if (xpp->flags & XE_CARD_TYPE_FLAGS_MOHAWK)
  279                 scp->mohawk = 1;
  280         if (xpp->flags & XE_CARD_TYPE_FLAGS_DINGO) {
  281                 scp->dingo = 1;
  282                 scp->mohawk = 1;
  283         }
  284         if (xpp->product.pp_product & XE_PROD_MODEM_MASK)
  285                 scp->modem = 1;
  286 
  287         /* Get MAC address */
  288         pccard_get_ether(dev, scp->enaddr);
  289 
  290         /* Deal with bogus MAC address */
  291         if (xe_bad_mac(scp->enaddr) &&
  292             !pccard_cis_scan(dev, xe_pccard_mac, scp->enaddr)) {
  293                 device_printf(dev,
  294                     "Unable to find MAC address for your %s card\n",
  295                     device_get_desc(dev));
  296                 return (ENXIO);
  297         }
  298 
  299         if ((err = xe_activate(dev)) != 0)
  300                 return (err);
  301          
  302         /* Hack RealPorts into submission */
  303         if (scp->modem && xe_cemfix(dev) < 0) {
  304                 device_printf(dev, "Unable to fix your %s combo card\n",
  305                     device_get_desc(dev));
  306                 xe_deactivate(dev);
  307                 return (ENXIO);
  308         }
  309         if ((err = xe_attach(dev))) {
  310                 device_printf(dev, "xe_attach() failed! (%d)\n", err);
  311                 xe_deactivate(dev);
  312                 return (err);
  313         }
  314         return (0);
  315 }
  316 
  317 /*
  318  * The device entry is being removed, probably because someone ejected the
  319  * card.  The interface should have been brought down manually before calling
  320  * this function; if not you may well lose packets.  In any case, I shut down
  321  * the card and the interface, and hope for the best.
  322  */
  323 static int
  324 xe_pccard_detach(device_t dev)
  325 {
  326         struct xe_softc *sc = device_get_softc(dev);
  327 
  328         DEVPRINTF(2, (dev, "pccard_detach\n"));
  329 
  330         XE_LOCK(sc);
  331         xe_stop(sc);
  332         XE_UNLOCK(sc);
  333         callout_drain(&sc->media_timer);
  334         callout_drain(&sc->wdog_timer);
  335         ether_ifdetach(sc->ifp);
  336         xe_deactivate(dev);
  337         mtx_destroy(&sc->lock);
  338         return (0);
  339 }
  340 
  341 static int
  342 xe_pccard_probe(device_t dev)
  343 {
  344         const struct xe_pccard_product *xpp;
  345 
  346         DEVPRINTF(2, (dev, "pccard_probe\n"));
  347 
  348         /*
  349          * Xircom cards aren't proper MFC cards, so we have to take all
  350          * cards that match, not just ones that are network.
  351          */
  352 
  353         /* If we match something in the table, it is our device. */
  354         if ((xpp = xe_pccard_get_product(dev)) == NULL)
  355                 return (ENXIO);
  356 
  357         /* Set card name for logging later */
  358         if (xpp->product.pp_name != NULL)
  359                 device_set_desc(dev, xpp->product.pp_name);
  360 
  361         /* Reject known but unsupported cards */
  362         if (xpp->flags & XE_CARD_TYPE_FLAGS_NO) {
  363                 device_printf(dev, "Sorry, your %s card is not supported :(\n",
  364                     device_get_desc(dev));
  365                 return (ENXIO);
  366         }
  367 
  368         return (0);
  369 }
  370 
  371 static device_method_t xe_pccard_methods[] = {
  372         /* Device interface */
  373         DEVMETHOD(device_probe,         xe_pccard_probe),
  374         DEVMETHOD(device_attach,        xe_pccard_attach),
  375         DEVMETHOD(device_detach,        xe_pccard_detach),
  376 
  377         { 0, 0 }
  378 };
  379 
  380 static driver_t xe_pccard_driver = {
  381         "xe",
  382         xe_pccard_methods,
  383         sizeof(struct xe_softc),
  384 };
  385 
  386 devclass_t xe_devclass;
  387 
  388 DRIVER_MODULE(xe, pccard, xe_pccard_driver, xe_devclass, 0, 0);
  389 PCCARD_PNP_INFO(xe_pccard_products);

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