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: stable/9/sys/dev/xe/if_xe_pccard.c 179551 2008-06-04 20:26:57Z jhb $");
   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 #include <dev/xe/if_xereg.h>
   50 #include <dev/xe/if_xevar.h>
   51 
   52 #include <dev/pccard/pccardvar.h>
   53 #include <dev/pccard/pccard_cis.h>
   54 
   55 #include "card_if.h"
   56 #include "pccarddevs.h"
   57 
   58 /*
   59  * Debug logging levels - set with hw.xe.debug sysctl
   60  * 0 = None
   61  * 1 = More hardware details, probe/attach progress
   62  * 2 = Most function calls, ioctls and media selection progress
   63  * 3 = Everything - interrupts, packets in/out and multicast address setup
   64  */
   65 #define XE_DEBUG
   66 #ifdef XE_DEBUG
   67 
   68 extern int xe_debug;
   69 
   70 #define DEVPRINTF(level, arg)   if (xe_debug >= (level)) device_printf arg
   71 #define DPRINTF(level, arg)     if (xe_debug >= (level)) printf arg
   72 #else
   73 #define DEVPRINTF(level, arg)
   74 #define DPRINTF(level, arg)
   75 #endif
   76 
   77 
   78 #define XE_CARD_TYPE_FLAGS_NO           0x0
   79 #define XE_CARD_TYPE_FLAGS_CE2          0x1
   80 #define XE_CARD_TYPE_FLAGS_MOHAWK       0x2
   81 #define XE_CARD_TYPE_FLAGS_DINGO        0x4
   82 #define XE_PROD_ETHER_MASK              0x0100
   83 #define XE_PROD_MODEM_MASK              0x1000
   84 
   85 #define XE_BOGUS_MAC_OFFSET             0x90
   86 
   87 /* MAC vendor prefix used by most Xircom cards is 00:80:c7 */
   88 #define XE_MAC_ADDR_0                   0x00
   89 #define XE_MAC_ADDR_1                   0x80
   90 #define XE_MAC_ADDR_2                   0xc7
   91 
   92 /* Some (all?) REM56 cards have vendor prefix 00:10:a4 */
   93 #define XE_REM56_MAC_ADDR_0             0x00
   94 #define XE_REM56_MAC_ADDR_1             0x10
   95 #define XE_REM56_MAC_ADDR_2             0xa4
   96 
   97 struct xe_pccard_product {
   98         struct pccard_product product;
   99         uint16_t        prodext;
  100         uint16_t        flags;
  101 };
  102 
  103 static const struct xe_pccard_product xe_pccard_products[] = {
  104         { PCMCIA_CARD_D(COMPAQ, CPQ550),      0x43, XE_CARD_TYPE_FLAGS_CE2 },
  105         { PCMCIA_CARD_D(COMPAQ2, CPQ_10_100), 0x43, XE_CARD_TYPE_FLAGS_MOHAWK },
  106         { PCMCIA_CARD_D(INTEL, EEPRO100),     0x43, XE_CARD_TYPE_FLAGS_MOHAWK },
  107         { PCMCIA_CARD_D(INTEL, PRO100LAN56),  0x46, XE_CARD_TYPE_FLAGS_DINGO },
  108         { PCMCIA_CARD_D(RACORE, ACCTON_EN2226),0x43, XE_CARD_TYPE_FLAGS_MOHAWK },
  109         { PCMCIA_CARD_D(XIRCOM, CE),          0x41, XE_CARD_TYPE_FLAGS_NO },
  110         { PCMCIA_CARD_D(XIRCOM, CE2),         0x41, XE_CARD_TYPE_FLAGS_CE2 },
  111         { PCMCIA_CARD_D(XIRCOM, CE2),         0x42, XE_CARD_TYPE_FLAGS_CE2 },
  112         { PCMCIA_CARD_D(XIRCOM, CE2_2),       0x41, XE_CARD_TYPE_FLAGS_CE2 },
  113         { PCMCIA_CARD_D(XIRCOM, CE2_2),       0x42, XE_CARD_TYPE_FLAGS_CE2 },
  114         { PCMCIA_CARD_D(XIRCOM, CE3),         0x43, XE_CARD_TYPE_FLAGS_MOHAWK },
  115         { PCMCIA_CARD_D(XIRCOM, CEM),         0x41, XE_CARD_TYPE_FLAGS_NO },
  116         { PCMCIA_CARD_D(XIRCOM, CEM2),        0x42, XE_CARD_TYPE_FLAGS_CE2 },
  117         { PCMCIA_CARD_D(XIRCOM, CEM28),       0x43, XE_CARD_TYPE_FLAGS_CE2 },
  118         { PCMCIA_CARD_D(XIRCOM, CEM33),       0x44, XE_CARD_TYPE_FLAGS_CE2 },
  119         { PCMCIA_CARD_D(XIRCOM, CEM33_2),     0x44, XE_CARD_TYPE_FLAGS_CE2 },
  120         { PCMCIA_CARD_D(XIRCOM, CEM56),       0x45, XE_CARD_TYPE_FLAGS_DINGO },
  121         { PCMCIA_CARD_D(XIRCOM, CEM56_2),     0x46, XE_CARD_TYPE_FLAGS_DINGO },
  122         { PCMCIA_CARD_D(XIRCOM, REM56),       0x46, XE_CARD_TYPE_FLAGS_DINGO },
  123         { PCMCIA_CARD_D(XIRCOM, REM10),       0x47, XE_CARD_TYPE_FLAGS_DINGO },
  124         { PCMCIA_CARD_D(XIRCOM, XEM5600),     0x56, XE_CARD_TYPE_FLAGS_DINGO },
  125         { { NULL }, 0, 0 }      
  126 };
  127 
  128 /*
  129  * Fixing for CEM2, CEM3 and CEM56/REM56 cards.  These need some magic to
  130  * enable the Ethernet function, which isn't mentioned anywhere in the CIS.
  131  * Despite the register names, most of this isn't Dingo-specific.
  132  */
  133 static int
  134 xe_cemfix(device_t dev)
  135 {
  136         struct xe_softc *sc = device_get_softc(dev);
  137         int ioport;
  138 
  139         DEVPRINTF(2, (dev, "cemfix\n"));
  140 
  141         DEVPRINTF(1, (dev, "CEM I/O port 0x%0lx, size 0x%0lx\n",
  142                 bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid),
  143                 bus_get_resource_count(dev, SYS_RES_IOPORT, sc->port_rid)));
  144 
  145         pccard_attr_write_1(dev, DINGO_ECOR, DINGO_ECOR_IRQ_LEVEL |
  146             DINGO_ECOR_INT_ENABLE | DINGO_ECOR_IOB_ENABLE |
  147             DINGO_ECOR_ETH_ENABLE);
  148         ioport = bus_get_resource_start(dev, SYS_RES_IOPORT, sc->port_rid);
  149         pccard_attr_write_1(dev, DINGO_EBAR0, ioport & 0xff);
  150         pccard_attr_write_1(dev, DINGO_EBAR1, (ioport >> 8) & 0xff);
  151 
  152         if (sc->dingo) {
  153                 pccard_attr_write_1(dev, DINGO_DCOR0, DINGO_DCOR0_SF_INT);
  154                 pccard_attr_write_1(dev, DINGO_DCOR1, DINGO_DCOR1_INT_LEVEL |
  155                     DINGO_DCOR1_EEDIO);
  156                 pccard_attr_write_1(dev, DINGO_DCOR2, 0x00);
  157                 pccard_attr_write_1(dev, DINGO_DCOR3, 0x00);
  158                 pccard_attr_write_1(dev, DINGO_DCOR4, 0x00);
  159         }
  160         /* success! */
  161         return (0);
  162 }
  163 
  164 static int
  165 xe_pccard_product_match(device_t dev, const struct pccard_product* ent,
  166     int vpfmatch)
  167 {
  168         const struct xe_pccard_product* xpp;
  169         uint16_t prodext;
  170 
  171         if (vpfmatch == 0)
  172                 return (0);
  173 
  174         xpp = (const struct xe_pccard_product*)ent;
  175         pccard_get_prodext(dev, &prodext);
  176         if (xpp->prodext != prodext)
  177                 vpfmatch = 0;
  178         else
  179                 vpfmatch++;
  180         return (vpfmatch);
  181 }
  182 
  183 static const struct xe_pccard_product *
  184 xe_pccard_get_product(device_t dev)
  185 {
  186         return ((const struct xe_pccard_product *)pccard_product_lookup(dev,
  187             (const struct pccard_product *)xe_pccard_products,
  188             sizeof(xe_pccard_products[0]), xe_pccard_product_match));
  189 }
  190 
  191 /*
  192  * Fixing for CE2-class cards with bogus CIS entry for MAC address.
  193  */
  194 static int
  195 xe_pccard_mac(const struct pccard_tuple *tuple, void *argp)
  196 {
  197         uint8_t *enaddr = argp, test;
  198         int i;
  199 
  200         /* Code 0x89 is Xircom special cis node contianing the MAC */
  201         if (tuple->code != 0x89)
  202                 return (0);
  203 
  204         /* Make sure this is a sane node */
  205         if (tuple->length != ETHER_ADDR_LEN + 2)
  206                 return (0);
  207         test = pccard_tuple_read_1(tuple, 0);
  208         if (test != PCCARD_TPLFE_TYPE_LAN_NID)
  209                 return (0);
  210         test = pccard_tuple_read_1(tuple, 1);
  211         if (test != ETHER_ADDR_LEN)
  212                 return (0);
  213 
  214         /* Copy the MAC ADDR and return success */
  215         for (i = 0; i < ETHER_ADDR_LEN; i++)
  216                 enaddr[i] = pccard_tuple_read_1(tuple, i + 2);
  217         return (1);
  218 }
  219 
  220 static int
  221 xe_bad_mac(uint8_t *enaddr)
  222 {
  223         int i;
  224         uint8_t sum;
  225 
  226         for (i = 0, sum = 0; i < ETHER_ADDR_LEN; i++)
  227                 sum |= enaddr[i];
  228         return (sum == 0);
  229 }
  230 
  231 /*
  232  * PCMCIA attach routine.
  233  * Identify the device.  Called from the bus driver when the card is
  234  * inserted or otherwise powers up.
  235  */
  236 static int
  237 xe_pccard_attach(device_t dev)
  238 {
  239         struct xe_softc *scp = device_get_softc(dev);
  240         uint32_t vendor,product;
  241         uint16_t prodext;
  242         const char* vendor_str = NULL;
  243         const char* product_str = NULL;
  244         const char* cis4_str = NULL;
  245         const char *cis3_str=NULL;
  246         const struct xe_pccard_product *xpp;
  247         int err;
  248 
  249         DEVPRINTF(2, (dev, "pccard_attach\n"));
  250 
  251         pccard_get_vendor(dev, &vendor);
  252         pccard_get_product(dev, &product);
  253         pccard_get_prodext(dev, &prodext);
  254         pccard_get_vendor_str(dev, &vendor_str);
  255         pccard_get_product_str(dev, &product_str);
  256         pccard_get_cis3_str(dev, &cis3_str);
  257         pccard_get_cis4_str(dev, &cis4_str);
  258 
  259         DEVPRINTF(1, (dev, "vendor = 0x%04x\n", vendor));
  260         DEVPRINTF(1, (dev, "product = 0x%04x\n", product));
  261         DEVPRINTF(1, (dev, "prodext = 0x%02x\n", prodext));
  262         DEVPRINTF(1, (dev, "vendor_str = %s\n", vendor_str));
  263         DEVPRINTF(1, (dev, "product_str = %s\n", product_str));
  264         DEVPRINTF(1, (dev, "cis3_str = %s\n", cis3_str));
  265         DEVPRINTF(1, (dev, "cis4_str = %s\n", cis4_str));
  266 
  267         xpp = xe_pccard_get_product(dev);
  268         if (xpp == NULL)
  269                 return (ENXIO);
  270 
  271         /* Set various card ID fields in softc */
  272         scp->vendor = vendor_str;
  273         scp->card_type = product_str;
  274         if (xpp->flags & XE_CARD_TYPE_FLAGS_CE2)
  275                 scp->ce2 = 1;
  276         if (xpp->flags & XE_CARD_TYPE_FLAGS_MOHAWK)
  277                 scp->mohawk = 1;
  278         if (xpp->flags & XE_CARD_TYPE_FLAGS_DINGO) {
  279                 scp->dingo = 1;
  280                 scp->mohawk = 1;
  281         }
  282         if (xpp->product.pp_product & XE_PROD_MODEM_MASK)
  283                 scp->modem = 1;
  284 
  285         /* Get MAC address */
  286         pccard_get_ether(dev, scp->enaddr);
  287 
  288         /* Deal with bogus MAC address */
  289         if (xe_bad_mac(scp->enaddr) &&
  290             !pccard_cis_scan(dev, xe_pccard_mac, scp->enaddr)) {
  291                 device_printf(dev,
  292                     "Unable to find MAC address for your %s card\n",
  293                     device_get_desc(dev));
  294                 return (ENXIO);
  295         }
  296 
  297         if ((err = xe_activate(dev)) != 0)
  298                 return (err);
  299          
  300         /* Hack RealPorts into submission */
  301         if (scp->modem && xe_cemfix(dev) < 0) {
  302                 device_printf(dev, "Unable to fix your %s combo card\n",
  303                     device_get_desc(dev));
  304                 xe_deactivate(dev);
  305                 return (ENXIO);
  306         }
  307         if ((err = xe_attach(dev))) {
  308                 device_printf(dev, "xe_attach() failed! (%d)\n", err);
  309                 xe_deactivate(dev);
  310                 return (err);
  311         }
  312         return (0);
  313 }
  314 
  315 /*
  316  * The device entry is being removed, probably because someone ejected the
  317  * card.  The interface should have been brought down manually before calling
  318  * this function; if not you may well lose packets.  In any case, I shut down
  319  * the card and the interface, and hope for the best.
  320  */
  321 static int
  322 xe_pccard_detach(device_t dev)
  323 {
  324         struct xe_softc *sc = device_get_softc(dev);
  325 
  326         DEVPRINTF(2, (dev, "pccard_detach\n"));
  327 
  328         XE_LOCK(sc);
  329         xe_stop(sc);
  330         XE_UNLOCK(sc);
  331         callout_drain(&sc->media_timer);
  332         callout_drain(&sc->wdog_timer);
  333         ether_ifdetach(sc->ifp);
  334         xe_deactivate(dev);
  335         mtx_destroy(&sc->lock);
  336         return (0);
  337 }
  338 
  339 static int
  340 xe_pccard_probe(device_t dev)
  341 {
  342         const struct xe_pccard_product *xpp;
  343 
  344         DEVPRINTF(2, (dev, "pccard_probe\n"));
  345 
  346         /*
  347          * Xircom cards aren't proper MFC cards, so we have to take all
  348          * cards that match, not just ones that are network.
  349          */
  350 
  351         /* If we match something in the table, it is our device. */
  352         if ((xpp = xe_pccard_get_product(dev)) == NULL)
  353                 return (ENXIO);
  354 
  355         /* Set card name for logging later */
  356         if (xpp->product.pp_name != NULL)
  357                 device_set_desc(dev, xpp->product.pp_name);
  358 
  359         /* Reject known but unsupported cards */
  360         if (xpp->flags & XE_CARD_TYPE_FLAGS_NO) {
  361                 device_printf(dev, "Sorry, your %s card is not supported :(\n",
  362                     device_get_desc(dev));
  363                 return (ENXIO);
  364         }
  365 
  366         return (0);
  367 }
  368 
  369 static device_method_t xe_pccard_methods[] = {
  370         /* Device interface */
  371         DEVMETHOD(device_probe,         xe_pccard_probe),
  372         DEVMETHOD(device_attach,        xe_pccard_attach),
  373         DEVMETHOD(device_detach,        xe_pccard_detach),
  374 
  375         { 0, 0 }
  376 };
  377 
  378 static driver_t xe_pccard_driver = {
  379         "xe",
  380         xe_pccard_methods,
  381         sizeof(struct xe_softc),
  382 };
  383 
  384 devclass_t xe_devclass;
  385 
  386 DRIVER_MODULE(xe, pccard, xe_pccard_driver, xe_devclass, 0, 0);

Cache object: c84aa3cecce5eeab8d279ba03671dac7


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