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/7.4/sys/dev/xe/if_xe_pccard.c 150306 2005-09-19 03:10:21Z imp $");
   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/module.h>
   36 #include <sys/socket.h>
   37 #include <sys/systm.h>
   38 
   39 #include <machine/bus.h>
   40 #include <machine/resource.h>
   41 #include <sys/rman.h>
   42  
   43 #include <net/ethernet.h>
   44 #include <net/if.h> 
   45 #include <net/if_arp.h>
   46 #include <net/if_media.h>
   47 #include <net/if_mib.h>
   48 
   49 
   50 #include <dev/xe/if_xereg.h>
   51 #include <dev/xe/if_xevar.h>
   52 
   53 #include <dev/pccard/pccardvar.h>
   54 #include <dev/pccard/pccard_cis.h>
   55 
   56 #include "card_if.h"
   57 #include "pccarddevs.h"
   58 
   59 /*
   60  * Debug logging levels - set with hw.xe.debug sysctl
   61  * 0 = None
   62  * 1 = More hardware details, probe/attach progress
   63  * 2 = Most function calls, ioctls and media selection progress
   64  * 3 = Everything - interrupts, packets in/out and multicast address setup
   65  */
   66 #define XE_DEBUG
   67 #ifdef XE_DEBUG
   68 
   69 extern int xe_debug;
   70 
   71 #define DEVPRINTF(level, arg) if (xe_debug >= (level)) device_printf arg
   72 #define DPRINTF(level, arg) if (xe_debug >= (level)) printf arg
   73 #else
   74 #define DEVPRINTF(level, arg)
   75 #define DPRINTF(level, arg)
   76 #endif
   77 
   78 
   79 #define XE_CARD_TYPE_FLAGS_NO 0x0
   80 #define XE_CARD_TYPE_FLAGS_CE2 0x1
   81 #define XE_CARD_TYPE_FLAGS_MOHAWK 0x2
   82 #define XE_CARD_TYPE_FLAGS_DINGO 0x4
   83 #define XE_PROD_ETHER_MASK 0x0100
   84 #define XE_PROD_MODEM_MASK 0x1000
   85 
   86 #define XE_BOGUS_MAC_OFFSET 0x90
   87 
   88 /* MAC vendor prefix used by most Xircom cards is 00:80:c7 */
   89 #define XE_MAC_ADDR_0 0x00
   90 #define XE_MAC_ADDR_1 0x80
   91 #define XE_MAC_ADDR_2 0xc7
   92 
   93 /* Some (all?) REM56 cards have vendor prefix 00:10:a4 */
   94 #define XE_REM56_MAC_ADDR_0 0x00
   95 #define XE_REM56_MAC_ADDR_1 0x10
   96 #define XE_REM56_MAC_ADDR_2 0xa4
   97 
   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 /*
  132  * Fixing for CEM2, CEM3 and CEM56/REM56 cards.  These need some magic to
  133  * enable the Ethernet function, which isn't mentioned anywhere in the CIS.
  134  * Despite the register names, most of this isn't Dingo-specific.
  135  */
  136 static int
  137 xe_cemfix(device_t dev)
  138 {
  139         struct xe_softc *sc = (struct xe_softc *) device_get_softc(dev);
  140         int ioport;
  141 
  142         DEVPRINTF(2, (dev, "cemfix\n"));
  143 
  144         DEVPRINTF(1, (dev, "CEM I/O port 0x%0lx, size 0x%0lx\n",
  145                 bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid),
  146                 bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid)));
  147 
  148         pccard_attr_write_1(dev, DINGO_ECOR, DINGO_ECOR_IRQ_LEVEL |
  149             DINGO_ECOR_INT_ENABLE | DINGO_ECOR_IOB_ENABLE |
  150             DINGO_ECOR_ETH_ENABLE);
  151         ioport = bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid);
  152         pccard_attr_write_1(dev, DINGO_EBAR0, ioport & 0xff);
  153         pccard_attr_write_1(dev, DINGO_EBAR1, (ioport >> 8) & 0xff);
  154 
  155         if (sc->dingo) {
  156                 pccard_attr_write_1(dev, DINGO_DCOR0, DINGO_DCOR0_SF_INT);
  157                 pccard_attr_write_1(dev, DINGO_DCOR1, DINGO_DCOR1_INT_LEVEL |
  158                     DINGO_DCOR1_EEDIO);
  159                 pccard_attr_write_1(dev, DINGO_DCOR2, 0x00);
  160                 pccard_attr_write_1(dev, DINGO_DCOR3, 0x00);
  161                 pccard_attr_write_1(dev, DINGO_DCOR4, 0x00);
  162         }
  163         /* success! */
  164         return (0);
  165 }
  166 
  167 static int
  168 xe_pccard_product_match(device_t dev, const struct pccard_product* ent, 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 = (struct xe_softc *) 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                 return (err);
  312         }
  313         return (0);
  314 }
  315 
  316 /*
  317  * The device entry is being removed, probably because someone ejected the
  318  * card.  The interface should have been brought down manually before calling
  319  * this function; if not you may well lose packets.  In any case, I shut down
  320  * the card and the interface, and hope for the best.
  321  */
  322 static int
  323 xe_pccard_detach(device_t dev)
  324 {
  325         struct xe_softc *sc = device_get_softc(dev);
  326 
  327         DEVPRINTF(2, (dev, "pccard_detach\n"));
  328 
  329         sc->ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
  330         ether_ifdetach(sc->ifp);
  331         xe_deactivate(dev);
  332         if_free(sc->ifp);
  333         return (0);
  334 }
  335 
  336 static int
  337 xe_pccard_probe(device_t dev)
  338 {
  339         const struct xe_pccard_product *xpp;
  340 
  341         DEVPRINTF(2, (dev, "pccard_probe\n"));
  342 
  343         /*
  344          * Xircom cards aren't proper MFC cards, so we have to take all
  345          * cards that match, not just ones that are network.
  346          */
  347 
  348         /* If we match something in the table, it is our device. */
  349         if ((xpp = xe_pccard_get_product(dev)) == NULL)
  350                 return (ENXIO);
  351 
  352         /* Set card name for logging later */
  353         if (xpp->product.pp_name != NULL)
  354                 device_set_desc(dev, xpp->product.pp_name);
  355 
  356         /* Reject known but unsupported cards */
  357         if (xpp->flags & XE_CARD_TYPE_FLAGS_NO) {
  358                 device_printf(dev, "Sorry, your %s card is not supported :(\n",
  359                     device_get_desc(dev));
  360                 return (ENXIO);
  361         }
  362 
  363         return (0);
  364 }
  365 
  366 static device_method_t xe_pccard_methods[] = {
  367         /* Device interface */
  368         DEVMETHOD(device_probe,         xe_pccard_probe),
  369         DEVMETHOD(device_attach,        xe_pccard_attach),
  370         DEVMETHOD(device_detach,        xe_pccard_detach),
  371 
  372         { 0, 0 }
  373 };
  374 
  375 static driver_t xe_pccard_driver = {
  376         "xe",
  377         xe_pccard_methods,
  378         sizeof(struct xe_softc),
  379 };
  380 
  381 devclass_t xe_devclass;
  382 
  383 DRIVER_MODULE(xe, pccard, xe_pccard_driver, xe_devclass, 0, 0);

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