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/9.0/sys/dev/ex/if_ex_isa.c 182088 2008-08-24 00:22:42Z imp $");
   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 static int      ex_look_for_card(struct ex_softc *);
   60 
   61 #if 0
   62 static  void    ex_pnp_wakeup(void *);
   63 
   64 SYSINIT(ex_pnpwakeup, SI_SUB_CPU, SI_ORDER_ANY, ex_pnp_wakeup, NULL);
   65 #endif
   66 
   67 static device_method_t ex_isa_methods[] = {
   68         /* Device interface */
   69         DEVMETHOD(device_identify,      ex_isa_identify),
   70         DEVMETHOD(device_probe,         ex_isa_probe),
   71         DEVMETHOD(device_attach,        ex_isa_attach),
   72         DEVMETHOD(device_detach,        ex_detach),
   73 
   74         { 0, 0 }
   75 };
   76 
   77 static driver_t ex_isa_driver = {
   78         "ex",
   79         ex_isa_methods,
   80         sizeof(struct ex_softc),
   81 };
   82 
   83 DRIVER_MODULE(ex, isa, ex_isa_driver, ex_devclass, 0, 0);
   84 
   85 static struct isa_pnp_id ex_ids[] = {
   86         { 0x3110d425,   NULL }, /* INT1031 */
   87         { 0x3010d425,   NULL }, /* INT1030 */
   88         { 0,            NULL },
   89 };
   90 
   91 #if 0
   92 #define EX_PNP_WAKE             0x279
   93 
   94 static uint8_t ex_pnp_wake_seq[] =
   95                         { 0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,
   96                           0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,
   97                           0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,
   98                           0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43 };
   99 
  100 static void
  101 ex_pnp_wakeup (void * dummy)
  102 {
  103         int     tmp;
  104 
  105         if (bootverbose)
  106                 printf("ex_pnp_wakeup()\n");
  107 
  108         outb(EX_PNP_WAKE, 0);
  109         outb(EX_PNP_WAKE, 0);
  110         for (tmp = 0; tmp < 32; tmp++) {
  111                 outb(EX_PNP_WAKE, ex_pnp_wake_seq[tmp]);
  112         }
  113 }
  114 #endif
  115 
  116 /*
  117  * Non-destructive identify.
  118  */
  119 static void
  120 ex_isa_identify(driver_t *driver, device_t parent)
  121 {
  122         device_t        child;
  123         bus_addr_t      ioport;
  124         u_char          enaddr[6];
  125         u_int           irq;
  126         int             tmp;
  127         const char *    desc;
  128         struct ex_softc sc;
  129         int             rid;
  130 
  131         if (bootverbose)
  132                 printf("ex_isa_identify()\n");
  133 
  134         for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) {
  135                 rid = 0;
  136                 sc.ioport = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
  137                     ioport, ioport, 0x10, RF_ACTIVE);
  138                 if (sc.ioport == NULL)
  139                         continue;
  140 
  141                 /* No board found at address */
  142                 if (!ex_look_for_card(&sc)) {
  143                         bus_release_resource(parent, SYS_RES_IOPORT, rid,
  144                             sc.ioport);
  145                         continue;
  146                 }
  147 
  148                 if (bootverbose)
  149                         printf("ex: Found card at 0x%03lx!\n", (unsigned long)ioport);
  150 
  151                 /* Board in PnP mode */
  152                 if (ex_eeprom_read(&sc, EE_W0) & EE_W0_PNP) {
  153                         /* Reset the card. */
  154                         CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
  155                         DELAY(500);
  156                         if (bootverbose)
  157                                 printf("ex: card at 0x%03lx in PnP mode!\n", (unsigned long)ioport);
  158                         bus_release_resource(parent, SYS_RES_IOPORT, rid,
  159                             sc.ioport);
  160                         continue;
  161                 }
  162 
  163                 bzero(enaddr, sizeof(enaddr));
  164 
  165                 /* Reset the card. */
  166                 CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
  167                 DELAY(400);
  168 
  169                 ex_get_address(&sc, enaddr);
  170                 tmp = ex_eeprom_read(&sc, EE_W1) & EE_W1_INT_SEL;
  171 
  172                 /* work out which set of irq <-> internal tables to use */
  173                 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
  174                         irq  = plus_ee2irqmap[tmp];
  175                         desc = "Intel Pro/10+";
  176                 } else {
  177                         irq = ee2irqmap[tmp];
  178                         desc = "Intel Pro/10";
  179                 }
  180 
  181                 bus_release_resource(parent, SYS_RES_IOPORT, rid, sc.ioport);
  182                 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1);
  183                 device_set_desc_copy(child, desc);
  184                 device_set_driver(child, driver);
  185                 bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
  186                 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE);
  187                 if (bootverbose)
  188                         printf("ex: Adding board at 0x%03lx, irq %d\n",
  189                            (unsigned long)ioport, irq);
  190         }
  191 
  192         return;
  193 }
  194 
  195 static int
  196 ex_isa_probe(device_t dev)
  197 {
  198         bus_addr_t      iobase;
  199         u_int           irq;
  200         char *          irq2ee;
  201         u_char *        ee2irq;
  202         u_char          enaddr[6];
  203         int             tmp;
  204         int             error;
  205         struct ex_softc *sc = device_get_softc(dev);
  206 
  207         /* Check isapnp ids */
  208         error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids);
  209 
  210         /* If the card had a PnP ID that didn't match any we know about */
  211         if (error == ENXIO)
  212                 return(error);
  213 
  214         /* If we had some other problem. */
  215         if (!(error == 0 || error == ENOENT))
  216                 return(error);
  217 
  218         error = ex_alloc_resources(dev);
  219         if (error != 0)
  220                 goto bad;
  221         iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
  222         if (!ex_look_for_card(sc)) {
  223                 if (bootverbose)
  224                         printf("ex: no card found at 0x%03lx.\n", (unsigned long)iobase);
  225                 error = ENXIO;
  226                 goto bad;
  227         }
  228         if (bootverbose)
  229                 printf("ex: ex_isa_probe() found card at 0x%03lx\n", (unsigned long)iobase);
  230 
  231         /*
  232          * Reset the card.
  233          */
  234         CSR_WRITE_1(sc, CMD_REG, Reset_CMD);
  235         DELAY(800);
  236 
  237         ex_get_address(sc, enaddr);
  238 
  239         /* work out which set of irq <-> internal tables to use */
  240         if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
  241                 irq2ee = plus_irq2eemap;
  242                 ee2irq = plus_ee2irqmap;
  243         } else {
  244                 irq2ee = irq2eemap;
  245                 ee2irq = ee2irqmap;
  246         }
  247 
  248         tmp = ex_eeprom_read(sc, EE_W1) & EE_W1_INT_SEL;
  249         irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
  250         if (irq > 0) {
  251                 /* This will happen if board is in PnP mode. */
  252                 if (ee2irq[tmp] != irq) {
  253                         device_printf(dev,
  254                             "WARNING: IRQ mismatch: EEPROM %d, using %d\n",
  255                                 ee2irq[tmp], irq);
  256                 }
  257         } else {
  258                 irq = ee2irq[tmp];
  259                 bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
  260         }
  261 
  262         if (irq == 0) {
  263                 printf("ex: invalid IRQ.\n");
  264                 error = ENXIO;
  265         }
  266 
  267 bad:;
  268         ex_release_resources(dev);
  269         return (error);
  270 }
  271 
  272 static int
  273 ex_isa_attach(device_t dev)
  274 {
  275         struct ex_softc *       sc = device_get_softc(dev);
  276         int                     error = 0;
  277         uint16_t                temp;
  278 
  279         sc->dev = dev;
  280         sc->ioport_rid = 0;
  281         sc->irq_rid = 0;
  282         sc->flags |= HAS_INT_NO_REG;
  283 
  284         if ((error = ex_alloc_resources(dev)) != 0) {
  285                 device_printf(dev, "ex_alloc_resources() failed!\n");
  286                 goto bad;
  287         }
  288 
  289         /*
  290          * Fill in several fields of the softc structure:
  291          *      - I/O base address.
  292          *      - Hardware Ethernet address.
  293          *      - IRQ number (if not supplied in config file, read it from EEPROM).
  294          *      - Connector type.
  295          */
  296         sc->irq_no = rman_get_start(sc->irq);
  297 
  298         ex_get_address(sc, sc->enaddr);
  299 
  300         temp = ex_eeprom_read(sc, EE_W0);
  301         device_printf(sc->dev, "%s config, %s bus, ",
  302                 (temp & EE_W0_PNP) ? "PnP" : "Manual",
  303                 (temp & EE_W0_BUS16) ? "16-bit" : "8-bit");
  304 
  305         temp = ex_eeprom_read(sc, EE_W6);
  306         printf("board id 0x%03x, stepping 0x%01x\n",
  307                 (temp & EE_W6_BOARD_MASK) >> EE_W6_BOARD_SHIFT,
  308                 temp & EE_W6_STEP_MASK);
  309 
  310         if ((error = ex_attach(dev)) != 0) {
  311                 device_printf(dev, "ex_attach() failed!\n");
  312                 goto bad;
  313         }
  314 
  315         return(0);
  316 bad:
  317         ex_release_resources(dev);
  318         return (error);
  319 }
  320 
  321 static int
  322 ex_look_for_card(struct ex_softc *sc)
  323 {
  324         int count1, count2;
  325 
  326         /*
  327          * Check for the i82595 signature, and check that the round robin
  328          * counter actually advances.
  329          */
  330         if (((count1 = CSR_READ_1(sc, ID_REG)) & Id_Mask) != Id_Sig)
  331                 return(0);
  332         count2 = CSR_READ_1(sc, ID_REG);
  333         count2 = CSR_READ_1(sc, ID_REG);
  334         count2 = CSR_READ_1(sc, ID_REG);
  335 
  336         return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
  337 }

Cache object: 221d0762551a844790637e112524c74b


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