sys/dev/ex/if_ex_isa.c

   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("$FreeBSD$");
  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         struct resource *res;
 130         int             rid;
 131
 132         if (bootverbose)
 133                 printf("ex_isa_identify()\n");
 134
 135         for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) {
 136                 rid = 0;
 137                 res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
 138                     ioport, ioport, 0x10, RF_ACTIVE);
 139                 if (res == NULL)
 140                         continue;
 141                 sc.bst = rman_get_bustag(res);
 142                 sc.bsh = rman_get_bushandle(res);
 143
 144                 /* No board found at address */
 145                 if (!ex_look_for_card(&sc)) {
 146                         bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
 147                         continue;
 148                 }
 149
 150                 if (bootverbose)
 151                         printf("ex: Found card at 0x%03lx!\n", (unsigned long)ioport);
 152
 153                 /* Board in PnP mode */
 154                 if (ex_eeprom_read(&sc, EE_W0) & EE_W0_PNP) {
 155                         /* Reset the card. */
 156                         CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
 157                         DELAY(500);
 158                         if (bootverbose)
 159                                 printf("ex: card at 0x%03lx in PnP mode!\n", (unsigned long)ioport);
 160                         bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
 161                         continue;
 162                 }
 163
 164                 bzero(enaddr, sizeof(enaddr));
 165
 166                 /* Reset the card. */
 167                 CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
 168                 DELAY(400);
 169
 170                 ex_get_address(&sc, enaddr);
 171                 tmp = ex_eeprom_read(&sc, EE_W1) & EE_W1_INT_SEL;
 172
 173                 /* work out which set of irq <-> internal tables to use */
 174                 if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
 175                         irq  = plus_ee2irqmap[tmp];
 176                         desc = "Intel Pro/10+";
 177                 } else {
 178                         irq = ee2irqmap[tmp];
 179                         desc = "Intel Pro/10";
 180                 }
 181
 182                 bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
 183                 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1);
 184                 device_set_desc_copy(child, desc);
 185                 device_set_driver(child, driver);
 186                 bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
 187                 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE);
 188                 if (bootverbose)
 189                         printf("ex: Adding board at 0x%03lx, irq %d\n",
 190                            (unsigned long)ioport, irq);
 191         }
 192
 193         return;
 194 }
 195
 196 static int
 197 ex_isa_probe(device_t dev)
 198 {
 199         bus_addr_t      iobase;
 200         u_int           irq;
 201         char *          irq2ee;
 202         u_char *        ee2irq;
 203         u_char          enaddr[6];
 204         int             tmp;
 205         int             error;
 206         struct ex_softc *sc = device_get_softc(dev);
 207
 208         /* Check isapnp ids */
 209         error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids);
 210
 211         /* If the card had a PnP ID that didn't match any we know about */
 212         if (error == ENXIO)
 213                 return(error);
 214
 215         /* If we had some other problem. */
 216         if (!(error == 0 || error == ENOENT))
 217                 return(error);
 218
 219         error = ex_alloc_resources(dev);
 220         if (error != 0)
 221                 goto bad;
 222         iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
 223         if (!ex_look_for_card(sc)) {
 224                 if (bootverbose)
 225                         printf("ex: no card found at 0x%03lx.\n", (unsigned long)iobase);
 226                 error = ENXIO;
 227                 goto bad;
 228         }
 229         if (bootverbose)
 230                 printf("ex: ex_isa_probe() found card at 0x%03lx\n", (unsigned long)iobase);
 231
 232         /*
 233          * Reset the card.
 234          */
 235         CSR_WRITE_1(sc, CMD_REG, Reset_CMD);
 236         DELAY(800);
 237
 238         ex_get_address(sc, enaddr);
 239
 240         /* work out which set of irq <-> internal tables to use */
 241         if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
 242                 irq2ee = plus_irq2eemap;
 243                 ee2irq = plus_ee2irqmap;
 244         } else {
 245                 irq2ee = irq2eemap;
 246                 ee2irq = ee2irqmap;
 247         }
 248
 249         tmp = ex_eeprom_read(sc, EE_W1) & EE_W1_INT_SEL;
 250         irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
 251
 252         if (irq > 0) {
 253                 /* This will happen if board is in PnP mode. */
 254                 if (ee2irq[tmp] != irq) {
 255                         printf("ex: WARNING: board's EEPROM is configured"
 256                                 " for IRQ %d, using %d\n",
 257                                 ee2irq[tmp], irq);
 258                 }
 259         } else {
 260                 irq = ee2irq[tmp];
 261                 bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
 262         }
 263
 264         if (irq == 0) {
 265                 printf("ex: invalid IRQ.\n");
 266                 error = ENXIO;
 267         }
 268
 269 bad:;
 270         ex_release_resources(dev);
 271         return(error);
 272 }
 273
 274 static int
 275 ex_isa_attach(device_t dev)
 276 {
 277         struct ex_softc *       sc = device_get_softc(dev);
 278         int                     error = 0;
 279         uint16_t                temp;
 280
 281         sc->dev = dev;
 282         sc->ioport_rid = 0;
 283         sc->irq_rid = 0;
 284
 285         if ((error = ex_alloc_resources(dev)) != 0) {
 286                 device_printf(dev, "ex_alloc_resources() failed!\n");
 287                 goto bad;
 288         }
 289
 290         /*
 291          * Fill in several fields of the softc structure:
 292          *      - I/O base address.
 293          *      - Hardware Ethernet address.
 294          *      - IRQ number (if not supplied in config file, read it from EEPROM).
 295          *      - Connector type.
 296          */
 297         sc->irq_no = rman_get_start(sc->irq);
 298
 299         ex_get_address(sc, sc->enaddr);
 300
 301         temp = ex_eeprom_read(sc, EE_W0);
 302         device_printf(sc->dev, "%s config, %s bus, ",
 303                 (temp & EE_W0_PNP) ? "PnP" : "Manual",
 304                 (temp & EE_W0_BUS16) ? "16-bit" : "8-bit");
 305
 306         temp = ex_eeprom_read(sc, EE_W6);
 307         printf("board id 0x%03x, stepping 0x%01x\n",
 308                 (temp & EE_W6_BOARD_MASK) >> EE_W6_BOARD_SHIFT,
 309                 temp & EE_W6_STEP_MASK);
 310
 311         if ((error = ex_attach(dev)) != 0) {
 312                 device_printf(dev, "ex_attach() failed!\n");
 313                 goto bad;
 314         }
 315
 316         error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
 317                                 NULL, ex_intr, (void *)sc, &sc->ih);
 318         if (error) {
 319                 device_printf(dev, "bus_setup_intr() failed!\n");
 320                 goto bad;
 321         }
 322
 323         return(0);
 324 bad:
 325         ex_release_resources(dev);
 326         return (error);
 327 }
 328
 329 static int
 330 ex_look_for_card(struct ex_softc *sc)
 331 {
 332         int count1, count2;
 333
 334         /*
 335          * Check for the i82595 signature, and check that the round robin
 336          * counter actually advances.
 337          */
 338         if (((count1 = CSR_READ_1(sc, ID_REG)) & Id_Mask) != Id_Sig)
 339                 return(0);
 340         count2 = CSR_READ_1(sc, ID_REG);
 341         count2 = CSR_READ_1(sc, ID_REG);
 342         count2 = CSR_READ_1(sc, ID_REG);
 343
 344         return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
 345 }