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/ex/if_ex_isa.c

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    1 /*-
    2  * Copyright (c) 2000 Matthew N. Dodd
    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 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD: releng/5.2/sys/dev/ex/if_ex_isa.c 119418 2003-08-24 17:55:58Z obrien $");
   30 
   31 #include <sys/param.h>
   32 #include <sys/systm.h>
   33 #include <sys/kernel.h>
   34 #include <sys/socket.h>
   35 
   36 #include <sys/module.h>
   37 #include <sys/bus.h>
   38 
   39 #include <machine/bus.h>
   40 #include <machine/resource.h>
   41 #include <sys/rman.h>
   42 
   43 #include <net/if.h>
   44 #include <net/if_arp.h>
   45 #include <net/if_media.h> 
   46 
   47 
   48 #include <isa/isavar.h>
   49 #include <isa/pnpvar.h>
   50 
   51 #include <dev/ex/if_exreg.h>
   52 #include <dev/ex/if_exvar.h>
   53 
   54 /* Bus Front End Functions */
   55 static void     ex_isa_identify (driver_t *, device_t);
   56 static int      ex_isa_probe    (device_t);
   57 static int      ex_isa_attach   (device_t);
   58 
   59 #if 0
   60 static  void    ex_pnp_wakeup   (void *);
   61 
   62 SYSINIT(ex_pnpwakeup, SI_SUB_CPU, SI_ORDER_ANY, ex_pnp_wakeup, NULL);
   63 #endif
   64 
   65 static device_method_t ex_isa_methods[] = {
   66         /* Device interface */
   67         DEVMETHOD(device_identify,      ex_isa_identify),
   68         DEVMETHOD(device_probe,         ex_isa_probe),
   69         DEVMETHOD(device_attach,        ex_isa_attach),
   70         DEVMETHOD(device_detach,        ex_detach),
   71 
   72         { 0, 0 }
   73 };
   74 
   75 static driver_t ex_isa_driver = {
   76         "ex",
   77         ex_isa_methods,
   78         sizeof(struct ex_softc),
   79 };
   80 
   81 DRIVER_MODULE(ex, isa, ex_isa_driver, ex_devclass, 0, 0);
   82 
   83 static struct isa_pnp_id ex_ids[] = {
   84         { 0x3110d425,   NULL }, /* INT1031 */
   85         { 0x3010d425,   NULL }, /* INT1030 */
   86         { 0,            NULL },
   87 };
   88 
   89 #if 0
   90 #define EX_PNP_WAKE             0x279
   91 
   92 static u_int8_t ex_pnp_wake_seq[] =
   93                         { 0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,
   94                           0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,
   95                           0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,
   96                           0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43 };
   97 
   98 static void
   99 ex_pnp_wakeup (void * dummy)
  100 {
  101         int     tmp;
  102 
  103         if (bootverbose)
  104                 printf("ex_pnp_wakeup()\n");
  105 
  106         outb(EX_PNP_WAKE, 0);
  107         outb(EX_PNP_WAKE, 0);
  108         for (tmp = 0; tmp < 32; tmp++) {
  109                 outb(EX_PNP_WAKE, ex_pnp_wake_seq[tmp]);
  110         }
  111 }
  112 #endif
  113 
  114 /*
  115  * Non-destructive identify.
  116  */
  117 static void
  118 ex_isa_identify (driver_t *driver, device_t parent)
  119 {
  120         device_t        child;
  121         u_int32_t       ioport;
  122         u_char          enaddr[6];
  123         u_int           irq;
  124         int             tmp;
  125         const char *    desc;
  126 
  127         if (bootverbose)
  128                 printf("ex_isa_identify()\n");
  129 
  130         for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) {
  131 
  132                 /* No board found at address */
  133                 if (!look_for_card(ioport)) {
  134                         continue;
  135                 }
  136 
  137                 if (bootverbose)
  138                         printf("ex: Found card at 0x%03x!\n", ioport);
  139 
  140                 /* Board in PnP mode */
  141                 if (eeprom_read(ioport, EE_W0) & EE_W0_PNP) {
  142                         /* Reset the card. */
  143                         outb(ioport + CMD_REG, Reset_CMD);
  144                         DELAY(500);
  145                         if (bootverbose)
  146                                 printf("ex: card at 0x%03x in PnP mode!\n", ioport);
  147                         continue;
  148                 }
  149 
  150                 bzero(enaddr, sizeof(enaddr));
  151 
  152                 /* Reset the card. */
  153                 outb(ioport + CMD_REG, Reset_CMD);
  154                 DELAY(400);
  155 
  156                 ex_get_address(ioport, enaddr);
  157                 tmp = eeprom_read(ioport, EE_W1) & EE_W1_INT_SEL;
  158 
  159                 /* work out which set of irq <-> internal tables to use */
  160                 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
  161                         irq  = plus_ee2irqmap[tmp];
  162                         desc = "Intel Pro/10+";
  163                 } else {
  164                         irq = ee2irqmap[tmp];
  165                         desc = "Intel Pro/10";
  166                 }
  167 
  168                 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1);
  169                 device_set_desc_copy(child, desc);
  170                 device_set_driver(child, driver);
  171                 bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
  172                 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE);
  173 
  174                 if (bootverbose)
  175                         printf("ex: Adding board at 0x%03x, irq %d\n", ioport, irq);
  176         }
  177 
  178         return;
  179 }
  180 
  181 static int
  182 ex_isa_probe(device_t dev)
  183 {
  184         u_int           iobase;
  185         u_int           irq;
  186         char *          irq2ee;
  187         u_char *        ee2irq;
  188         u_char          enaddr[6];
  189         int             tmp;
  190         int             error;
  191 
  192         /* Check isapnp ids */
  193         error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids);
  194 
  195         /* If the card had a PnP ID that didn't match any we know about */
  196         if (error == ENXIO) {
  197                 return(error);
  198         }
  199 
  200         /* If we had some other problem. */
  201         if (!(error == 0 || error == ENOENT)) {
  202                 return(error);
  203         }
  204 
  205         iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
  206         if (!iobase) {
  207                 printf("ex: no iobase?\n");
  208                 return(ENXIO);
  209         }
  210 
  211         if (!look_for_card(iobase)) {
  212                 printf("ex: no card found at 0x%03x\n", iobase);
  213                 return(ENXIO);
  214         }
  215 
  216         if (bootverbose)
  217                 printf("ex: ex_isa_probe() found card at 0x%03x\n", iobase);
  218 
  219         /*
  220          * Reset the card.
  221          */
  222         outb(iobase + CMD_REG, Reset_CMD);
  223         DELAY(800);
  224 
  225         ex_get_address(iobase, enaddr);
  226 
  227         /* work out which set of irq <-> internal tables to use */
  228         if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
  229                 irq2ee = plus_irq2eemap;
  230                 ee2irq = plus_ee2irqmap;
  231         } else {
  232                 irq2ee = irq2eemap;
  233                 ee2irq = ee2irqmap;
  234         }
  235 
  236         tmp = eeprom_read(iobase, EE_W1) & EE_W1_INT_SEL;
  237         irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
  238 
  239         if (irq > 0) {
  240                 /* This will happen if board is in PnP mode. */
  241                 if (ee2irq[tmp] != irq) {
  242                         printf("ex: WARNING: board's EEPROM is configured"
  243                                 " for IRQ %d, using %d\n",
  244                                 ee2irq[tmp], irq);
  245                 }
  246         } else {
  247                 irq = ee2irq[tmp];
  248                 bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
  249         }
  250 
  251         if (irq == 0) {
  252                 printf("ex: invalid IRQ.\n");
  253                 return(ENXIO);
  254         }
  255 
  256         return(0);
  257 }
  258 
  259 static int
  260 ex_isa_attach(device_t dev)
  261 {
  262         struct ex_softc *       sc = device_get_softc(dev);
  263         int                     error = 0;
  264         u_int16_t               temp;
  265 
  266         sc->dev = dev;
  267         sc->ioport_rid = 0;
  268         sc->irq_rid = 0;
  269 
  270         if ((error = ex_alloc_resources(dev)) != 0) {
  271                 device_printf(dev, "ex_alloc_resources() failed!\n");
  272                 goto bad;
  273         }
  274 
  275         /*
  276          * Fill in several fields of the softc structure:
  277          *      - I/O base address.
  278          *      - Hardware Ethernet address.
  279          *      - IRQ number (if not supplied in config file, read it from EEPROM).
  280          *      - Connector type.
  281          */
  282         sc->iobase = rman_get_start(sc->ioport);
  283         sc->irq_no = rman_get_start(sc->irq);
  284 
  285         ex_get_address(sc->iobase, sc->arpcom.ac_enaddr);
  286 
  287         temp = eeprom_read(sc->iobase, EE_W0);
  288         device_printf(sc->dev, "%s config, %s bus, ",
  289                 (temp & EE_W0_PNP) ? "PnP" : "Manual",
  290                 (temp & EE_W0_BUS16) ? "16-bit" : "8-bit");
  291 
  292         temp = eeprom_read(sc->iobase, EE_W6);
  293         printf("board id 0x%03x, stepping 0x%01x\n",
  294                 (temp & EE_W6_BOARD_MASK) >> EE_W6_BOARD_SHIFT,
  295                 temp & EE_W6_STEP_MASK);
  296 
  297         if ((error = ex_attach(dev)) != 0) {
  298                 device_printf(dev, "ex_attach() failed!\n");
  299                 goto bad;
  300         }
  301 
  302         error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
  303                                 ex_intr, (void *)sc, &sc->ih);
  304         if (error) {
  305                 device_printf(dev, "bus_setup_intr() failed!\n");
  306                 goto bad;
  307         }
  308 
  309         return(0);
  310 bad:
  311         ex_release_resources(dev);
  312         return (error);
  313 }

Cache object: 9f665490dc1c32f558b057dff28d0587


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